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Jiang JJ, Zheng X, Ma MS, Cui XG, Jian S, Tang XY, Bao XD, Zhang SM, Ma JR, Song HM, Qiu ZQ. [Short-term efficacy of empagliflozin in children with glycogen storage disease type Ⅰb]. Zhonghua Er Ke Za Zhi 2023; 61:515-519. [PMID: 37312462 DOI: 10.3760/cma.j.cn112140-20230131-00067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To analyze the short-time efficacy of empagliflozin in the treatment of glycogen storage disease type Ⅰb (GSD Ⅰb). Methods: In this prospective open-label single-arm study, the data of 4 patients were collected from the pediatric department in Peking Union Medical College Hospital from December 2020 to December 2022. All of them were diagnosed by gene sequencing and had neutropenia. These patients received empagliflozin treatment. Their clinical symptoms such as height and weight increase, abdominal pain, diarrhea, oral ulcer, infection times, and drug applications were recorded at 2 weeks, 1 month, 2 months, 3 months, 6 months, 9 months, 12 months, and 15 months after treatment to assess the therapeutic effect. The liquid chromatography-tandem mass spectrometry method was used to monitor the changes in 1, 5-anhydroglucitol (1, 5AG) concentration in plasma. At the same time, adverse reactions such as hypoglycemia and urinary tract infection were closely followed up and monitored. Results: The 4 patients with GSD Ⅰb were 15, 14, 4 and 14 years old, respectively at the beginning of empagliflozin treatment, and were followed up for 15, 15, 12 and 6 months, respectively. Maintenance dose range of empagliflozin was 0.24-0.39 mg/(kg·d). The frequency of diarrhea and abdominal pain decreased in cases 2, 3, and 4 at 1, 2 and 3 months of treatment, respectively. Their height and weight increased at different degrees.The absolute count of neutrophils increased from 0.84×109, 0.50×109, 0.48×109, 0.48×109/L to 1.48×109, 3.04×109, 1.10×109, 0.73×109/L, respectively. Granulocyte colony-stimulating factor was gradually reduced in 1 patients and stopped in 3 patient. Plasma 1, 5 AG levels in 2 children were significantly decreased after administration of empagliflozin (from 46.3 mg/L to 9.6 mg/L in case 2, and from 56.1 mg/L to 15.0 mg/L in case 3). All 4 patients had no adverse reactions such as hypoglycemia, abnormal liver or kidney function, or urinary system infection. Conclusion: In short-term observation, empagliflozin can improve the symptoms of GSD Ⅰb oral ulcers, abdominal pain, diarrhea, and recurrent infection, also can alleviate neutropenia and decrease 1, 5AG concentration in plasma, with favorable safety.
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Affiliation(s)
- J J Jiang
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Zheng
- Clinical Pharmacology Research Center, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M S Ma
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X G Cui
- Clinical Pharmacology Research Center, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - S Jian
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Y Tang
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X D Bao
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - S M Zhang
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J R Ma
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H M Song
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z Q Qiu
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Zhang CH, Ma MS, Wang W, Jian S, Wang L, Li J, Tang XY, Zhang Y, Quan MY, Zhang LJ, Song HM. [Clinical analysis of 49 cases of non-inflammasome related conditions]. Zhonghua Er Ke Za Zhi 2022; 60:1266-1270. [PMID: 36444428 DOI: 10.3760/cma.j.cn112140-20220620-00570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To summarize the clinical characteristics and provide clues for early identification of non-inflammasome related conditions. Methods: The clinical manifestations, laboratory tests, genetic testing and follow-up of 49 children with non-inflammasome related conditions in Peking Union Medical College Hospital from January 2006 to February 2022 were retrospectively analyzed. Results: A total of 49 children, 29 of them were boys and 20 were girls. The age of onset was 0.8 (0.3, 1.6) years, the age at diagnosis was 5.7 (2.8, 8.8) years, and the time from onset to diagnosis was 3.6 (1.9, 6.3) years. Combined with genetic testing results, 49 children with non-inflammasome related conditions were found, including 34 cases (69%) of Blau syndrome, 4 cases (8%) of tumour necrosis factor receptor-associated periodic syndrome, 4 cases (8%) of haploinsufficiency of A20, 2 cases (4%) of Majeed syndrome, 2 cases (4%) of pyogenic sterile arthritis, pyoderma gangrenosum, acne syndrome and 3 cases (6%) of chronic atypical neutrophilic dermatosis with lipodystrophy and elevated temperature syndrome. There were 22 cases (45%) with a positive family history. The clinical manifestations included 37 cases (76%) cases with rash, 38 cases (78%) with joint involvement, 33 cases (67%) with eye involvement, 17 cases (35%) with recurrent fever. In addition, 11 cases (22%) were complicated with digestive system involvement. Thirty cases (61%) presented as elevated inflammatory indexes (erythrocyte sedimentation rate and (or) C-reactive protein), positive autoantibodies were noticed in 3 cases (6%). The patients were treated with glucocorticoid in 23 cases (47%), immunosuppressive agents in 43 cases (88%) and biologic agents in 37 cases (76%). During the follow-up of 5.8 (2.9, 8.9) years, 3 cases (6%) died. Conclusions: The symptoms of non-inflammasome related conditions include recurrent fever, rash, joint and ocular involvement with increased inflammatory indexes and negative autoantibodies. Up to now, glucocorticoids, immunosuppressants and biologic agents are the most popular medications for the non-inflammasome related conditions.
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Affiliation(s)
- C H Zhang
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Union Translational Medicine Center, Beijing 100730, China
| | - M S Ma
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Union Translational Medicine Center, Beijing 100730, China
| | - W Wang
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Union Translational Medicine Center, Beijing 100730, China
| | - S Jian
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Union Translational Medicine Center, Beijing 100730, China
| | - L Wang
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Union Translational Medicine Center, Beijing 100730, China
| | - J Li
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Union Translational Medicine Center, Beijing 100730, China
| | - X Y Tang
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Union Translational Medicine Center, Beijing 100730, China
| | - Y Zhang
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Union Translational Medicine Center, Beijing 100730, China
| | - M Y Quan
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Union Translational Medicine Center, Beijing 100730, China
| | - L J Zhang
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Union Translational Medicine Center, Beijing 100730, China
| | - H M Song
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Union Translational Medicine Center, Beijing 100730, China
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Jian S, Ya M, Qian Z, Meihua Y, Cao X, Dela Rosa RD. Research progress on humanistic care ability and influencing factors of intern nursing students. Eur Rev Med Pharmacol Sci 2022; 26:8637-8643. [PMID: 36524483 DOI: 10.26355/eurrev_202212_30534] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This paper is dedicated to reviewing relative research on humanistic caring ability of intern nursing students and proposing strategies to improve humanistic caring ability. Firstly, current paper collected information from both domestic and foreign literature, and then scientific analysis, summary and overview of research results were conducted with regards to humanistic caring ability of interns nursing students. By analyzing the current situation of intern nursing students' humanistic caring ability, and factors that have influence on humanistic caring ability of intern nursing students, the present paper is determined to come up with feasible change methods and form strategic paths. At present, the humanistic care ability of intern nursing students is relatively low. Students, schools, hospitals, and the society all exert influence on the humanistic care ability of intern nursing students. Although scholars' research is different in topics or focus, the conclusions drawn from this research are highly consistent. Nursing humanistic care is the internal quality of nursing staff concerning morality, humanity, and integration of knowledge, concepts, and attitudes. Nursing humanistic care ability includes caring experience ability and caring behavior ability. The necessary psychological characteristics of personality are regarded as a special ability. It is of great significance to promote the quality of nursing and humanistic care ability of intern nursing students who serve as the backup force of nursing talent team. Meanwhile, it is imperative to strengthen the construction of intern nursing students' humanistic care ability.
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Affiliation(s)
- S Jian
- Philippines Women's University, School of Nursing, Malate, Manila, Philippines.
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4
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Adhikari D, Albataineh H, Androic D, Aniol KA, Armstrong DS, Averett T, Ayerbe Gayoso C, Barcus SK, Bellini V, Beminiwattha RS, Benesch JF, Bhatt H, Bhatta Pathak D, Bhetuwal D, Blaikie B, Boyd J, Campagna Q, Camsonne A, Cates GD, Chen Y, Clarke C, Cornejo JC, Covrig Dusa S, Dalton MM, Datta P, Deshpande A, Dutta D, Feldman C, Fuchey E, Gal C, Gaskell D, Gautam T, Gericke M, Ghosh C, Halilovic I, Hansen JO, Hassan O, Hauenstein F, Henry W, Horowitz CJ, Jantzi C, Jian S, Johnston S, Jones DC, Kakkar S, Katugampola S, Keppel C, King PM, King DE, Kumar KS, Kutz T, Lashley-Colthirst N, Leverick G, Liu H, Liyanage N, Mammei J, Mammei R, McCaughan M, McNulty D, Meekins D, Metts C, Michaels R, Mihovilovic M, Mondal MM, Napolitano J, Narayan A, Nikolaev D, Owen V, Palatchi C, Pan J, Pandey B, Park S, Paschke KD, Petrusky M, Pitt ML, Premathilake S, Quinn B, Radloff R, Rahman S, Rashad MNH, Rathnayake A, Reed BT, Reimer PE, Richards R, Riordan S, Roblin YR, Seeds S, Shahinyan A, Souder P, Thiel M, Tian Y, Urciuoli GM, Wertz EW, Wojtsekhowski B, Yale B, Ye T, Yoon A, Xiong W, Zec A, Zhang W, Zhang J, Zheng X. Precision Determination of the Neutral Weak Form Factor of ^{48}Ca. Phys Rev Lett 2022; 129:042501. [PMID: 35939025 DOI: 10.1103/physrevlett.129.042501] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/15/2022] [Accepted: 06/16/2022] [Indexed: 06/15/2023]
Abstract
We report a precise measurement of the parity-violating (PV) asymmetry A_{PV} in the elastic scattering of longitudinally polarized electrons from ^{48}Ca. We measure A_{PV}=2668±106(stat)±40(syst) parts per billion, leading to an extraction of the neutral weak form factor F_{W}(q=0.8733 fm^{-1})=0.1304±0.0052(stat)±0.0020(syst) and the charge minus the weak form factor F_{ch}-F_{W}=0.0277±0.0055. The resulting neutron skin thickness R_{n}-R_{p}=0.121±0.026(exp)±0.024(model) fm is relatively thin yet consistent with many model calculations. The combined CREX and PREX results will have implications for future energy density functional calculations and on the density dependence of the symmetry energy of nuclear matter.
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Affiliation(s)
- D Adhikari
- Idaho State University, Pocatello, Idaho 83209, USA
| | - H Albataineh
- Texas A & M University-Kingsville, Kingsville, Texas 78363, USA
| | - D Androic
- University of Zagreb, Faculty of Science, Zagreb, HR 10002, Croatia
| | - K A Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | | | - T Averett
- William and Mary, Williamsburg, Virginia 23185, USA
| | | | - S K Barcus
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Bellini
- Istituto Nazionale di Fisica Nucleare, Sezione di Catania, 95123 Catania, Italy
| | | | - J F Benesch
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Bhatt
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | | | - D Bhetuwal
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - B Blaikie
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J Boyd
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Q Campagna
- William and Mary, Williamsburg, Virginia 23185, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G D Cates
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Chen
- Louisiana Tech University, Ruston, Louisiana 71272, USA
| | - C Clarke
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - J C Cornejo
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - S Covrig Dusa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M M Dalton
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Datta
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - A Deshpande
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - D Dutta
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - C Feldman
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Institute for Advanced Computational Science, Stony Brook, New York 11794, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Gal
- Mississippi State University, Mississippi State, Mississippi 39762, USA
- University of Virginia, Charlottesville, Virginia 22904, USA
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Gautam
- Hampton University, Hampton, Virginia 23668, USA
| | - M Gericke
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - C Ghosh
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - I Halilovic
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J-O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - O Hassan
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - F Hauenstein
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Henry
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - C J Horowitz
- Indiana University, Bloomington, Indiana 47405, USA
| | - C Jantzi
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Jian
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Johnston
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - D C Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Kakkar
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - S Katugampola
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - D E King
- Temple University, Philadelphia, Pennsylvania 19122, USA
- Syracuse University, Syracuse, New York 13244, USA
| | - K S Kumar
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - T Kutz
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | | | - G Leverick
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - H Liu
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - N Liyanage
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - J Mammei
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - R Mammei
- University of Winnipeg, Winnipeg, Manitoba R3B2E9, Canada
| | - M McCaughan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D McNulty
- Idaho State University, Pocatello, Idaho 83209, USA
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Metts
- William and Mary, Williamsburg, Virginia 23185, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Mihovilovic
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | - M M Mondal
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
| | - J Napolitano
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - A Narayan
- Veer Kunwar Singh University, Ara, Bihar 802301, India
| | - D Nikolaev
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - V Owen
- William and Mary, Williamsburg, Virginia 23185, USA
| | - C Palatchi
- University of Virginia, Charlottesville, Virginia 22904, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
| | - J Pan
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - B Pandey
- Hampton University, Hampton, Virginia 23668, USA
| | - S Park
- Mississippi State University, Mississippi State, Mississippi 39762, USA
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - K D Paschke
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Petrusky
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - M L Pitt
- Virginia Tech, Blacksburg, Virginia 24061, USA
| | - S Premathilake
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B Quinn
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - R Radloff
- Ohio University, Athens, Ohio 45701, USA
| | - S Rahman
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - M N H Rashad
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Rathnayake
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B T Reed
- Indiana University, Bloomington, Indiana 47405, USA
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - R Richards
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - S Riordan
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Y R Roblin
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Seeds
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - A Shahinyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - P Souder
- Syracuse University, Syracuse, New York 13244, USA
| | - M Thiel
- Institut für Kernphysik, Johannes Gutenberg-Universität, Mainz 55122, Germany
| | - Y Tian
- Syracuse University, Syracuse, New York 13244, USA
| | | | - E W Wertz
- William and Mary, Williamsburg, Virginia 23185, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Yale
- William and Mary, Williamsburg, Virginia 23185, USA
| | - T Ye
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - A Yoon
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - W Xiong
- Syracuse University, Syracuse, New York 13244, USA
- Shandong University, Qingdao, Shandong 266237, China
| | - A Zec
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - W Zhang
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - J Zhang
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
- Shandong University, Qingdao, Shandong 266237, China
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22904, USA
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5
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Adhikari D, Albataineh H, Androic D, Aniol K, Armstrong DS, Averett T, Ayerbe Gayoso C, Barcus S, Bellini V, Beminiwattha RS, Benesch JF, Bhatt H, Bhatta Pathak D, Bhetuwal D, Blaikie B, Boyd J, Campagna Q, Camsonne A, Cates GD, Chen Y, Clarke C, Cornejo JC, Covrig Dusa S, Dalton MM, Datta P, Deshpande A, Dutta D, Feldman C, Fuchey E, Gal C, Gaskell D, Gautam T, Gericke M, Ghosh C, Halilovic I, Hansen JO, Hauenstein F, Henry W, Horowitz CJ, Jantzi C, Jian S, Johnston S, Jones DC, Karki B, Kakkar S, Katugampola S, Keppel CE, King PM, King DE, Knauss M, Kumar KS, Kutz T, Lashley-Colthirst N, Leverick G, Liu H, Liyange N, Malace S, Mammei J, Mammei R, McCaughan M, McNulty D, Meekins D, Metts C, Michaels R, Mihovilovic M, Mondal MM, Napolitano J, Nikolaev D, Rashad MNH, Owen V, Palatchi C, Pan J, Pandey B, Park S, Paschke KD, Petrusky M, Pitt ML, Premathilake S, Puckett AJR, Quinn B, Radloff R, Rahman S, Rathnayake A, Reed BT, Reimer PE, Richards R, Riordan S, Roblin Y, Seeds S, Shahinyan A, Souder PA, Tang L, Thiel M, Tian Y, Urciuoli GM, Wertz EW, Wojtsekhowski B, Xiong W, Yale B, Ye T, Zec A, Zhang W, Zhang J, Zheng X. New Measurements of the Beam-Normal Single Spin Asymmetry in Elastic Electron Scattering over a Range of Spin-0 Nuclei. Phys Rev Lett 2022; 128:142501. [PMID: 35476486 DOI: 10.1103/physrevlett.128.142501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/31/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
We report precision determinations of the beam-normal single spin asymmetries (A_{n}) in the elastic scattering of 0.95 and 2.18 GeV electrons off ^{12}C, ^{40}Ca, ^{48}Ca, and ^{208}Pb at very forward angles where the most detailed theoretical calculations have been performed. The first measurements of A_{n} for ^{40}Ca and ^{48}Ca are found to be similar to that of ^{12}C, consistent with expectations and thus demonstrating the validity of theoretical calculations for nuclei with Z≤20. We also report A_{n} for ^{208}Pb at two new momentum transfers (Q^{2}) extending the previous measurement. Our new data confirm the surprising result previously reported, with all three data points showing significant disagreement with the results from the Z≤20 nuclei. These data confirm our basic understanding of the underlying dynamics that govern A_{n} for nuclei containing ≲50 nucleons, but point to the need for further investigation to understand the unusual A_{n} behavior discovered for scattering off ^{208}Pb.
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Affiliation(s)
- D Adhikari
- Idaho State University, Pocatello, Idaho 83209, USA
| | - H Albataineh
- Texas A & M University - Kingsville, Kingsville, Texas 78363, USA
| | - D Androic
- University of Zagreb, Faculty of Science, Zagreb HR 10002, Croatia
| | - K Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | | | - T Averett
- William & Mary, Williamsburg, Virginia 23185, USA
| | | | - S Barcus
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Bellini
- Istituto Nazionale di Fisica Nucleare, Sezione di Catania, 95123 Catania, Italy
| | | | - J F Benesch
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Bhatt
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | | | - D Bhetuwal
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - B Blaikie
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J Boyd
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Q Campagna
- William & Mary, Williamsburg, Virginia 23185, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G D Cates
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Chen
- Louisiana Tech University, Ruston, Louisiana 71272, USA
| | - C Clarke
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - J C Cornejo
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - S Covrig Dusa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M M Dalton
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Datta
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - A Deshpande
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - D Dutta
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - C Feldman
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Institute for Advanced Computational Science, Stony Brook, New York 11794, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Gal
- Mississippi State University, Mississippi State, Mississippi 39762, USA
- University of Virginia, Charlottesville, Virginia 22904, USA
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Gautam
- Hampton University, Hampton, Virginia 23668, USA
| | - M Gericke
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - C Ghosh
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - I Halilovic
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J-O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - W Henry
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - C J Horowitz
- Indiana University, Bloomington, Indiana 47405, USA
| | - C Jantzi
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Jian
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Johnston
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - D C Jones
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - B Karki
- Ohio University, Athens, Ohio 45701, USA
| | - S Kakkar
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - S Katugampola
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C E Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - D E King
- Syracuse University, Syracuse, New York 13244, USA
| | - M Knauss
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - K S Kumar
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - T Kutz
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | | | - G Leverick
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - H Liu
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - N Liyange
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Malace
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Mammei
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - R Mammei
- University of Winnipeg, Winnipeg, Manitoba R3B2E9, Canada
| | - M McCaughan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D McNulty
- Idaho State University, Pocatello, Idaho 83209, USA
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Metts
- William & Mary, Williamsburg, Virginia 23185, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Mihovilovic
- Jôzef Stefan Institute, Ljubljana 1000, Slovenia
- Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana 1000, Slovenia
| | - M M Mondal
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
| | - J Napolitano
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D Nikolaev
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - M N H Rashad
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V Owen
- William & Mary, Williamsburg, Virginia 23185, USA
| | - C Palatchi
- University of Virginia, Charlottesville, Virginia 22904, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
| | - J Pan
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - B Pandey
- Hampton University, Hampton, Virginia 23668, USA
| | - S Park
- Mississippi State University, Mississippi State, Mississippi 39762, USA
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - K D Paschke
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Petrusky
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - M L Pitt
- Virginia Tech, Blacksburg, Virginia 24061, USA
| | - S Premathilake
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A J R Puckett
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - B Quinn
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - R Radloff
- Ohio University, Athens, Ohio 45701, USA
| | - S Rahman
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - A Rathnayake
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B T Reed
- Indiana University, Bloomington, Indiana 47405, USA
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - R Richards
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - S Riordan
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Y Roblin
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Seeds
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - A Shahinyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - P A Souder
- Syracuse University, Syracuse, New York 13244, USA
| | - L Tang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Hampton University, Hampton, Virginia 23668, USA
| | - M Thiel
- Institut für Kernphysik, Johannes Gutenberg-Universität, Mainz 55099, Germany
| | - Y Tian
- Syracuse University, Syracuse, New York 13244, USA
| | | | - E W Wertz
- William & Mary, Williamsburg, Virginia 23185, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Xiong
- Syracuse University, Syracuse, New York 13244, USA
| | - B Yale
- William & Mary, Williamsburg, Virginia 23185, USA
| | - T Ye
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - A Zec
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - W Zhang
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - J Zhang
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
- Shandong University, Qingdao, Shandong 266237, China
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22904, USA
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6
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Abrams D, Albataineh H, Aljawrneh BS, Alsalmi S, Androic D, Aniol K, Armstrong W, Arrington J, Atac H, Averett T, Gayoso CA, Bai X, Bane J, Barcus S, Beck A, Bellini V, Bhatt H, Bhetuwal D, Biswas D, Blyth D, Boeglin W, Bulumulla D, Butler J, Camsonne A, Carmignotto M, Castellanos J, Chen JP, Cohen EO, Covrig S, Craycraft K, Cruz-Torres R, Dongwi B, Duran B, Dutta D, Fuchey E, Gal C, Gautam TN, Gilad S, Gnanvo K, Gogami T, Gomez J, Gu C, Habarakada A, Hague T, Hansen JO, Hattawy M, Hauenstein F, Higinbotham DW, Holt RJ, Hughes EW, Hyde C, Ibrahim H, Jian S, Joosten S, Karki A, Karki B, Katramatou AT, Keith C, Keppel C, Khachatryan M, Khachatryan V, Khanal A, Kievsky A, King D, King PM, Korover I, Kulagin SA, Kumar KS, Kutz T, Lashley-Colthirst N, Li S, Li W, Liu H, Liuti S, Liyanage N, Markowitz P, McClellan RE, Meekins D, Beck SMT, Meziani ZE, Michaels R, Mihovilovic M, Nelyubin V, Nguyen D, Nycz M, Obrecht R, Olson M, Owen VF, Pace E, Pandey B, Pandey V, Paolone M, Papadopoulou A, Park S, Paul S, Petratos GG, Petti R, Piasetzky E, Pomatsalyuk R, Premathilake S, Puckett AJR, Punjabi V, Ransome RD, Rashad MNH, Reimer PE, Riordan S, Roche J, Salmè G, Santiesteban N, Sawatzky B, Scopetta S, Schmidt A, Schmookler B, Segal J, Segarra EP, Shahinyan A, Širca S, Sparveris N, Su T, Suleiman R, Szumila-Vance H, Tadepalli AS, Tang L, Tireman W, Tortorici F, Urciuoli GM, Wojtsekhowski B, Wood S, Ye ZH, Ye ZY, Zhang J. Measurement of the Nucleon F_{2}^{n}/F_{2}^{p} Structure Function Ratio by the Jefferson Lab MARATHON Tritium/Helium-3 Deep Inelastic Scattering Experiment. Phys Rev Lett 2022; 128:132003. [PMID: 35426713 DOI: 10.1103/physrevlett.128.132003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 01/23/2022] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
The ratio of the nucleon F_{2} structure functions, F_{2}^{n}/F_{2}^{p}, is determined by the MARATHON experiment from measurements of deep inelastic scattering of electrons from ^{3}H and ^{3}He nuclei. The experiment was performed in the Hall A Facility of Jefferson Lab using two high-resolution spectrometers for electron detection, and a cryogenic target system which included a low-activity tritium cell. The data analysis used a novel technique exploiting the mirror symmetry of the two nuclei, which essentially eliminates many theoretical uncertainties in the extraction of the ratio. The results, which cover the Bjorken scaling variable range 0.19<x<0.83, represent a significant improvement compared to previous SLAC and Jefferson Lab measurements for the ratio. They are compared to recent theoretical calculations and empirical determinations of the F_{2}^{n}/F_{2}^{p} ratio.
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Affiliation(s)
- D Abrams
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - H Albataineh
- Texas A & M University, Kingsville, Texas 78363, USA
| | - B S Aljawrneh
- North Carolina A & T State University, Greensboro, North Carolina 27411, USA
| | - S Alsalmi
- Kent State University, Kent, Ohio 44240, USA
- King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
| | - D Androic
- University of Zagreb, 10000 Zagreb, Croatia
| | - K Aniol
- California State University, Los Angeles, California 90032, USA
| | - W Armstrong
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Arrington
- Argonne National Laboratory, Lemont, Illinois 60439, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - T Averett
- William & Mary, Williamsburg, Virginia 23187, USA
| | | | - X Bai
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - J Bane
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - S Barcus
- William & Mary, Williamsburg, Virginia 23187, USA
| | - A Beck
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - V Bellini
- Istituto Nazionale di Fisica Nucleare, Sezione di Catania, 95123 Catania, Italy
| | - H Bhatt
- Mississippi State University, Mississipi State, Mississippi 39762, USA
| | - D Bhetuwal
- Mississippi State University, Mississipi State, Mississippi 39762, USA
| | - D Biswas
- Hampton University, Hampton, Virginia 23669, USA
| | - D Blyth
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - W Boeglin
- Florida International University, Miami, Florida 33199, USA
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J Butler
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - A Camsonne
- Jefferson Lab, Newport News, Virginia 23606, USA
| | | | - J Castellanos
- Florida International University, Miami, Florida 33199, USA
| | - J-P Chen
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - E O Cohen
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel
| | - S Covrig
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - K Craycraft
- William & Mary, Williamsburg, Virginia 23187, USA
| | - R Cruz-Torres
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - B Dongwi
- Istituto Nazionale di Fisica Nucleare, Sezione di Catania, 95123 Catania, Italy
| | - B Duran
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D Dutta
- Mississippi State University, Mississipi State, Mississippi 39762, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Gal
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - T N Gautam
- Hampton University, Hampton, Virginia 23669, USA
| | - S Gilad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - K Gnanvo
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - T Gogami
- Tohoku University, Sendai 980-8576, Japan
| | - J Gomez
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - C Gu
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Habarakada
- Hampton University, Hampton, Virginia 23669, USA
| | - T Hague
- Kent State University, Kent, Ohio 44240, USA
| | - J-O Hansen
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - M Hattawy
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | | | - R J Holt
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - E W Hughes
- Columbia University, New York, New York 10027, USA
| | - C Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - H Ibrahim
- Cairo University, Cairo, Giza 12613 Egypt
| | - S Jian
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Joosten
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - A Karki
- Mississippi State University, Mississipi State, Mississippi 39762, USA
| | - B Karki
- Ohio University, Athens, Ohio 45701, USA
| | | | - C Keith
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - C Keppel
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - M Khachatryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V Khachatryan
- Stony Brook, State University of New York, New York 11794, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - A Kievsky
- Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, 56127 Pisa, Italy
| | - D King
- Syracuse University, Syracuse, New York 13244, USA
| | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - I Korover
- Nuclear Research Center-Negev, Beer-Sheva 84190, Israel
| | - S A Kulagin
- Institute for Nuclear Research of the Russian Academy of Sciences, 117312 Moscow, Russia
| | - K S Kumar
- Stony Brook, State University of New York, New York 11794, USA
| | - T Kutz
- Stony Brook, State University of New York, New York 11794, USA
| | | | - S Li
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - W Li
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - H Liu
- Columbia University, New York, New York 10027, USA
| | - S Liuti
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - N Liyanage
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | | | - D Meekins
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - S Mey-Tal Beck
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Z-E Meziani
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Michaels
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - M Mihovilovic
- Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana 1000, Slovenia
- Jožef Stefan Institute, Ljubljana, Slovenia
- Institut für Kernphysik, Johannes Gutenberg-Universität, Mainz 55122, Germany
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - D Nguyen
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Nycz
- Kent State University, Kent, Ohio 44240, USA
| | - R Obrecht
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Olson
- Saint Norbert College, De Pere, Wisconsin 54115, USA
| | - V F Owen
- William & Mary, Williamsburg, Virginia 23187, USA
| | - E Pace
- University of Rome Tor Vergata and INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - B Pandey
- Hampton University, Hampton, Virginia 23669, USA
| | - V Pandey
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061, USA
| | - M Paolone
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - A Papadopoulou
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Park
- Stony Brook, State University of New York, New York 11794, USA
| | - S Paul
- William & Mary, Williamsburg, Virginia 23187, USA
| | | | - R Petti
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - E Piasetzky
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel
| | - R Pomatsalyuk
- Institute of Physics and Technology, 61108 Kharkov, Ukraine
| | - S Premathilake
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A J R Puckett
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - R D Ransome
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - M N H Rashad
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - P E Reimer
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - S Riordan
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Roche
- Ohio University, Athens, Ohio 45701, USA
| | - G Salmè
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma, 00185 Rome, Italy
| | - N Santiesteban
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - B Sawatzky
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - S Scopetta
- University of Perugia and INFN, Sezione di Perugia, 06123 Perugia, Italy
| | - A Schmidt
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - B Schmookler
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Segal
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - E P Segarra
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A Shahinyan
- Yerevan Physics Institute, Yerevan 375036, Armenia
| | - S Širca
- Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana 1000, Slovenia
- Jožef Stefan Institute, Ljubljana, Slovenia
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - T Su
- Kent State University, Kent, Ohio 44240, USA
- Shandong Institute of Advanced Technology, Jinan, Shandong 250100, China
| | - R Suleiman
- Jefferson Lab, Newport News, Virginia 23606, USA
| | | | - A S Tadepalli
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - L Tang
- Hampton University, Hampton, Virginia 23669, USA
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - W Tireman
- Northern Michigan University, Marquette, Michigan 49855, USA
| | - F Tortorici
- Istituto Nazionale di Fisica Nucleare, Sezione di Catania, 95123 Catania, Italy
| | - G M Urciuoli
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma, 00185 Rome, Italy
| | | | - S Wood
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - Z H Ye
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Z Y Ye
- University of Illinois-Chicago, Chicago, Illinois 60607, USA
| | - J Zhang
- Stony Brook, State University of New York, New York 11794, USA
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7
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Ratti G, Rueschhoff A, Reisch J, Lowe K, Jian S, Cohen L, Mirfakhraee S, Jain R, Finklea J. 17: Development of metabolic syndrome in a single-center cohort after initiation of elexacaftor/tezacaftor/ivacaftor. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01442-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Adhikari D, Albataineh H, Androic D, Aniol K, Armstrong DS, Averett T, Ayerbe Gayoso C, Barcus S, Bellini V, Beminiwattha RS, Benesch JF, Bhatt H, Bhatta Pathak D, Bhetuwal D, Blaikie B, Campagna Q, Camsonne A, Cates GD, Chen Y, Clarke C, Cornejo JC, Covrig Dusa S, Datta P, Deshpande A, Dutta D, Feldman C, Fuchey E, Gal C, Gaskell D, Gautam T, Gericke M, Ghosh C, Halilovic I, Hansen JO, Hauenstein F, Henry W, Horowitz CJ, Jantzi C, Jian S, Johnston S, Jones DC, Karki B, Katugampola S, Keppel C, King PM, King DE, Knauss M, Kumar KS, Kutz T, Lashley-Colthirst N, Leverick G, Liu H, Liyange N, Malace S, Mammei R, Mammei J, McCaughan M, McNulty D, Meekins D, Metts C, Michaels R, Mondal MM, Napolitano J, Narayan A, Nikolaev D, Rashad MNH, Owen V, Palatchi C, Pan J, Pandey B, Park S, Paschke KD, Petrusky M, Pitt ML, Premathilake S, Puckett AJR, Quinn B, Radloff R, Rahman S, Rathnayake A, Reed BT, Reimer PE, Richards R, Riordan S, Roblin Y, Seeds S, Shahinyan A, Souder P, Tang L, Thiel M, Tian Y, Urciuoli GM, Wertz EW, Wojtsekhowski B, Yale B, Ye T, Yoon A, Zec A, Zhang W, Zhang J, Zheng X. Accurate Determination of the Neutron Skin Thickness of ^{208}Pb through Parity-Violation in Electron Scattering. Phys Rev Lett 2021; 126:172502. [PMID: 33988387 DOI: 10.1103/physrevlett.126.172502] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 03/22/2021] [Indexed: 06/12/2023]
Abstract
We report a precision measurement of the parity-violating asymmetry A_{PV} in the elastic scattering of longitudinally polarized electrons from ^{208}Pb. We measure A_{PV}=550±16(stat)±8(syst) parts per billion, leading to an extraction of the neutral weak form factor F_{W}(Q^{2}=0.00616 GeV^{2})=0.368±0.013. Combined with our previous measurement, the extracted neutron skin thickness is R_{n}-R_{p}=0.283±0.071 fm. The result also yields the first significant direct measurement of the interior weak density of ^{208}Pb: ρ_{W}^{0}=-0.0796±0.0036(exp)±0.0013(theo) fm^{-3} leading to the interior baryon density ρ_{b}^{0}=0.1480±0.0036(exp)±0.0013(theo) fm^{-3}. The measurement accurately constrains the density dependence of the symmetry energy of nuclear matter near saturation density, with implications for the size and composition of neutron stars.
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Affiliation(s)
- D Adhikari
- Idaho State University, Pocatello, ID 83209, USA
| | - H Albataineh
- Texas A & M University-Kingsville, Kingsville, TX 78363, USA
| | - D Androic
- University of Zagreb, Faculty of Science
| | - K Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | | | - T Averett
- William & Mary, Williamsburg, Virginia 23185, USA
| | | | - S Barcus
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Bellini
- Istituto Nazionale di Fisica Nucleare, Sezione di Catania, 95123 Catania, Italy
| | | | - J F Benesch
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Bhatt
- Mississippi State University, Mississippi State, MS 39762, USA
| | | | - D Bhetuwal
- Mississippi State University, Mississippi State, MS 39762, USA
| | - B Blaikie
- University of Manitoba, Winnipeg, MB R3T2N2 Canada
| | - Q Campagna
- William & Mary, Williamsburg, Virginia 23185, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G D Cates
- University of Virginia, Charlottesville, VA 22904, USA
| | - Y Chen
- Louisiana Tech University, Ruston, LA 71272 USA
| | - C Clarke
- Stony Brook, State University of New York, NY 11794, USA
| | - J C Cornejo
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - S Covrig Dusa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Datta
- University of Connecticut, Storrs, CT 06269, USA
| | - A Deshpande
- Stony Brook, State University of New York, NY 11794, USA
- Center for Frontiers in Nuclear Science, NY 11794, USA
| | - D Dutta
- Mississippi State University, Mississippi State, MS 39762, USA
| | - C Feldman
- Stony Brook, State University of New York, NY 11794, USA
| | - E Fuchey
- University of Connecticut, Storrs, CT 06269, USA
| | - C Gal
- University of Virginia, Charlottesville, VA 22904, USA
- Stony Brook, State University of New York, NY 11794, USA
- Center for Frontiers in Nuclear Science, NY 11794, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Gautam
- Hampton University, Hampton, Virginia 23668, USA
| | - M Gericke
- University of Manitoba, Winnipeg, MB R3T2N2 Canada
| | - C Ghosh
- Stony Brook, State University of New York, NY 11794, USA
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - I Halilovic
- University of Manitoba, Winnipeg, MB R3T2N2 Canada
| | - J-O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - W Henry
- Temple University, Philadelphia, PA 19122, USA
| | - C J Horowitz
- Indiana University, Bloomington, Indiana 47405, USA
| | - C Jantzi
- University of Virginia, Charlottesville, VA 22904, USA
| | - S Jian
- University of Virginia, Charlottesville, VA 22904, USA
| | - S Johnston
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - D C Jones
- Temple University, Philadelphia, PA 19122, USA
| | - B Karki
- Ohio University, Athens, Ohio 45701, USA
| | - S Katugampola
- University of Virginia, Charlottesville, VA 22904, USA
| | - C Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - D E King
- Syracuse University, Syracuse, New York 13244, USA
| | - M Knauss
- Duquesne University, 600 Forbes Avenue, Pittsburgh, PA 15282, USA
| | - K S Kumar
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - T Kutz
- Stony Brook, State University of New York, NY 11794, USA
| | | | - G Leverick
- University of Manitoba, Winnipeg, MB R3T2N2 Canada
| | - H Liu
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - N Liyange
- University of Virginia, Charlottesville, VA 22904, USA
| | - S Malace
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Mammei
- University of Winnipeg, Winnipeg, MB R3B2E9 Canada
| | - J Mammei
- University of Manitoba, Winnipeg, MB R3T2N2 Canada
| | - M McCaughan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D McNulty
- Idaho State University, Pocatello, ID 83209, USA
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Metts
- William & Mary, Williamsburg, Virginia 23185, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M M Mondal
- Stony Brook, State University of New York, NY 11794, USA
- Center for Frontiers in Nuclear Science, NY 11794, USA
| | | | | | - D Nikolaev
- Temple University, Philadelphia, PA 19122, USA
| | - M N H Rashad
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V Owen
- William & Mary, Williamsburg, Virginia 23185, USA
| | - C Palatchi
- University of Virginia, Charlottesville, VA 22904, USA
- Center for Frontiers in Nuclear Science, NY 11794, USA
| | - J Pan
- University of Manitoba, Winnipeg, MB R3T2N2 Canada
| | - B Pandey
- Hampton University, Hampton, Virginia 23668, USA
| | - S Park
- Stony Brook, State University of New York, NY 11794, USA
| | - K D Paschke
- University of Virginia, Charlottesville, VA 22904, USA
| | - M Petrusky
- Stony Brook, State University of New York, NY 11794, USA
| | - M L Pitt
- Virginia Tech, Blacksburg, Virginia 24061, USA
| | | | | | - B Quinn
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - R Radloff
- Ohio University, Athens, Ohio 45701, USA
| | - S Rahman
- University of Manitoba, Winnipeg, MB R3T2N2 Canada
| | - A Rathnayake
- University of Virginia, Charlottesville, VA 22904, USA
| | - B T Reed
- Indiana University, Bloomington, Indiana 47405, USA
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Lemont, Il 60439
| | - R Richards
- Stony Brook, State University of New York, NY 11794, USA
| | - S Riordan
- Physics Division, Argonne National Laboratory, Lemont, Il 60439
| | - Y Roblin
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Seeds
- University of Connecticut, Storrs, CT 06269, USA
| | - A Shahinyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - P Souder
- Syracuse University, Syracuse, New York 13244, USA
| | - L Tang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Hampton University, Hampton, Virginia 23668, USA
| | - M Thiel
- Institut für Kernphysik, Johannes Gutenberg-Universität, Mainz 55122, Germany
| | - Y Tian
- Syracuse University, Syracuse, New York 13244, USA
| | | | - E W Wertz
- William & Mary, Williamsburg, Virginia 23185, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Yale
- William & Mary, Williamsburg, Virginia 23185, USA
| | - T Ye
- Stony Brook, State University of New York, NY 11794, USA
| | - A Yoon
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - A Zec
- University of Virginia, Charlottesville, VA 22904, USA
| | - W Zhang
- Stony Brook, State University of New York, NY 11794, USA
| | - J Zhang
- Stony Brook, State University of New York, NY 11794, USA
- Center for Frontiers in Nuclear Science, NY 11794, USA
- Shandong University, Qingdao, Shandong 266237, China
| | - X Zheng
- University of Virginia, Charlottesville, VA 22904, USA
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9
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Cruz-Torres R, Nguyen D, Hauenstein F, Schmidt A, Li S, Abrams D, Albataineh H, Alsalmi S, Androic D, Aniol K, Armstrong W, Arrington J, Atac H, Averett T, Ayerbe Gayoso C, Bai X, Bane J, Barcus S, Beck A, Bellini V, Benmokhtar F, Bhatt H, Bhetuwal D, Biswas D, Blyth D, Boeglin W, Bulumulla D, Camsonne A, Castellanos J, Chen JP, Cohen EO, Covrig S, Craycraft K, Dongwi B, Duer M, Duran B, Dutta D, Fuchey E, Gal C, Gautam TN, Gilad S, Gnanvo K, Gogami T, Golak J, Gomez J, Gu C, Habarakada A, Hague T, Hansen O, Hattawy M, Hen O, Higinbotham DW, Hughes E, Hyde C, Ibrahim H, Jian S, Joosten S, Kamada H, Karki A, Karki B, Katramatou AT, Keppel C, Khachatryan M, Khachatryan V, Khanal A, King D, King P, Korover I, Kutz T, Lashley-Colthirst N, Laskaris G, Li W, Liu H, Liyanage N, Markowitz P, McClellan RE, Meekins D, Mey-Tal Beck S, Meziani ZE, Michaels R, Mihovilovič M, Nelyubin V, Nuruzzaman N, Nycz M, Obrecht R, Olson M, Ou L, Owen V, Pandey B, Pandey V, Papadopoulou A, Park S, Patsyuk M, Paul S, Petratos GG, Piasetzky E, Pomatsalyuk R, Premathilake S, Puckett AJR, Punjabi V, Ransome R, Rashad MNH, Reimer PE, Riordan S, Roche J, Sargsian M, Santiesteban N, Sawatzky B, Segarra EP, Schmookler B, Shahinyan A, Širca S, Skibiński R, Sparveris N, Su T, Suleiman R, Szumila-Vance H, Tadepalli AS, Tang L, Tireman W, Topolnicki K, Tortorici F, Urciuoli G, Weinstein LB, Witała H, Wojtsekhowski B, Wood S, Ye ZH, Ye ZY, Zhang J. Probing Few-Body Nuclear Dynamics via ^{3}H and ^{3}He (e,e^{'}p)pn Cross-Section Measurements. Phys Rev Lett 2020; 124:212501. [PMID: 32530643 DOI: 10.1103/physrevlett.124.212501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/12/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
We report the first measurement of the (e,e^{'}p) three-body breakup reaction cross sections in helium-3 (^{3}He) and tritium (^{3}H) at large momentum transfer [⟨Q^{2}⟩≈1.9 (GeV/c)^{2}] and x_{B}>1 kinematics, where the cross section should be sensitive to quasielastic (QE) scattering from single nucleons. The data cover missing momenta 40≤p_{miss}≤500 MeV/c that, in the QE limit with no rescattering, equals the initial momentum of the probed nucleon. The measured cross sections are compared with state-of-the-art ab initio calculations. Overall good agreement, within ±20%, is observed between data and calculations for the full p_{miss} range for ^{3}H and for 100≤p_{miss}≤350 MeV/c for ^{3}He. Including the effects of rescattering of the outgoing nucleon improves agreement with the data at p_{miss}>250 MeV/c and suggests contributions from charge-exchange (SCX) rescattering. The isoscalar sum of ^{3}He plus ^{3}H, which is largely insensitive to SCX, is described by calculations to within the accuracy of the data over the entire p_{miss} range. This validates current models of the ground state of the three-nucleon system up to very high initial nucleon momenta of 500 MeV/c.
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Affiliation(s)
- R Cruz-Torres
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - D Nguyen
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- University of Education, Hue University, Hue City, Vietnam
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Schmidt
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Li
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - D Abrams
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - H Albataineh
- Texas A & M University, Kingsville, Texas 78363, USA
| | - S Alsalmi
- King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
| | - D Androic
- University of Zagreb, 10000 Zagreb, Croatia
| | - K Aniol
- California State University, Los Angeles, California 90032, USA
| | - W Armstrong
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Arrington
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - T Averett
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - C Ayerbe Gayoso
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - X Bai
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - J Bane
- University of Tennessee, Knoxville, Tennessee 37966, USA
| | - S Barcus
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - A Beck
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - V Bellini
- INFN Sezione di Catania, 95123 Catania, Italy
| | - F Benmokhtar
- Duquesne University, Pittsburgh, Pennsylvania 15282, USA
| | - H Bhatt
- Mississippi State University, Mississippi 39762, USA
| | - D Bhetuwal
- Mississippi State University, Mississippi 39762, USA
| | - D Biswas
- Hampton University, Hampton, Virginia 23669, USA
| | - D Blyth
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - W Boeglin
- Florida International University, Miami, Florida 33199, USA
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Camsonne
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - J Castellanos
- Florida International University, Miami, Florida 33199, USA
| | - J-P Chen
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - E O Cohen
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
| | - S Covrig
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - K Craycraft
- University of Tennessee, Knoxville, Tennessee 37966, USA
| | - B Dongwi
- Hampton University, Hampton, Virginia 23669, USA
| | - M Duer
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
| | - B Duran
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D Dutta
- Mississippi State University, Mississippi 39762, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Gal
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - T N Gautam
- Hampton University, Hampton, Virginia 23669, USA
| | - S Gilad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - K Gnanvo
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - T Gogami
- Tohoku University, Sendai, Miyagi 980-8577, Japan
| | - J Golak
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - J Gomez
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - C Gu
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Habarakada
- Hampton University, Hampton, Virginia 23669, USA
| | - T Hague
- Kent State University, Kent, Ohio 44240, USA
| | - O Hansen
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - M Hattawy
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - O Hen
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | | | - E Hughes
- Columbia University, New York, New York 10027, USA
| | - C Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - H Ibrahim
- Cairo University, 12613 Cairo, Egypt
| | - S Jian
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Joosten
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - H Kamada
- Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
| | - A Karki
- Mississippi State University, Mississippi 39762, USA
| | - B Karki
- Ohio University, Athens, Ohio 45701, USA
| | | | - C Keppel
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - M Khachatryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V Khachatryan
- Stony Brook, State University of New York, New York 11794, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - D King
- Syracuse University, Syracuse, New York 13244, USA
| | - P King
- Ohio University, Athens, Ohio 45701, USA
| | - I Korover
- Nuclear Research Center-Negev, Beer-Sheva, Israel
| | - T Kutz
- Stony Brook, State University of New York, New York 11794, USA
| | | | - G Laskaris
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - W Li
- University of Regina, Regina, SK S4S 0A2, Canada
| | - H Liu
- Columbia University, New York, New York 10027, USA
| | - N Liyanage
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | | | - D Meekins
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - S Mey-Tal Beck
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Z-E Meziani
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
- Columbia University, New York, New York 10027, USA
| | - R Michaels
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - M Mihovilovič
- University of Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, Jožef Stefan Institute, Ljubljana, Slovenia
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, DE-55128 Mainz, Germany
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - N Nuruzzaman
- Hampton University, Hampton, Virginia 23669, USA
| | - M Nycz
- Kent State University, Kent, Ohio 44240, USA
| | - R Obrecht
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Olson
- Saint Norbert College, De Pere, Wisconsin 54115, USA
| | - L Ou
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - V Owen
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - B Pandey
- Hampton University, Hampton, Virginia 23669, USA
| | - V Pandey
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - A Papadopoulou
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Park
- Stony Brook, State University of New York, New York 11794, USA
| | - M Patsyuk
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Paul
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | | | - E Piasetzky
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
| | - R Pomatsalyuk
- Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - S Premathilake
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A J R Puckett
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - R Ransome
- Rutgers University, New Brunswick, New Jersey 08901, USA
| | - M N H Rashad
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - S Riordan
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Roche
- Ohio University, Athens, Ohio 45701, USA
| | - M Sargsian
- Florida International University, Miami, Florida 33199, USA
| | - N Santiesteban
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - B Sawatzky
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - E P Segarra
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - B Schmookler
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A Shahinyan
- Yerevan Physics Institute, 0036 Yerevan, Armenia
| | - S Širca
- University of Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, Jožef Stefan Institute, SI-1000, Ljubljana, Slovenia
| | - R Skibiński
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - N Sparveris
- Columbia University, New York, New York 10027, USA
| | - T Su
- Kent State University, Kent, Ohio 44240, USA
| | - R Suleiman
- Jefferson Lab, Newport News, Virginia 23606, USA
| | | | - A S Tadepalli
- Rutgers University, New Brunswick, New Jersey 08901, USA
| | - L Tang
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - W Tireman
- Northern Michigan University, Marquette, Michigan 49855, USA
| | - K Topolnicki
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - F Tortorici
- INFN Sezione di Catania, 95123 Catania, Italy
| | | | - L B Weinstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - H Witała
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | | | - S Wood
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - Z H Ye
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Z Y Ye
- University of Illinois-Chicago, Chicago, Illinois 60607, USA
| | - J Zhang
- Stony Brook, State University of New York, New York 11794, USA
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Li Z, Li L, Huo Y, Chen Z, Zhao Y, Huang J, Jian S, Rong Z, Wu D, Gan J, Hu X, Li J, Xu XW. Structure-guided protein engineering increases enzymatic activities of the SGNH family esterases. Biotechnol Biofuels 2020; 13:107. [PMID: 32549911 PMCID: PMC7294632 DOI: 10.1186/s13068-020-01742-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 05/30/2020] [Indexed: 05/03/2023]
Abstract
BACKGROUND Esterases and lipases hydrolyze short-chain esters and long-chain triglycerides, respectively, and therefore play essential roles in the synthesis and decomposition of ester bonds in the pharmaceutical and food industries. Many SGNH family esterases share high similarity in sequences. However, they have distinct enzymatic activities toward the same substrates. Due to a lack of structural information, the detailed catalytic mechanisms of these esterases remain barely investigated. RESULTS In this study, we identified two SGNH family esterases, CrmE10 and AlinE4, from marine bacteria with significantly different preferences for pH, temperature, metal ion, and organic solvent tolerance despite high sequence similarity. The crystal structures of these two esterases, including wild type and mutants, were determined to high resolutions ranging from 1.18 Å to 2.24 Å. Both CrmE10 and AlinE4 were composed of five β-strands and nine α-helices, which formed one compact N-terminal α/β globular domain and one extended C-terminal domain. The aspartic residues (D178 in CrmE10/D162 in AlinE4) destabilized the conformations of the catalytic triad (Ser-Asp-His) in both esterases, and the metal ion Cd2+ might reduce enzymatic activity by blocking proton transfer or substrate binding. CrmE10 and AlinE4 showed distinctly different electrostatic surface potentials, despite the similar atomic architectures and a similar swap catalytic mechanism. When five negatively charged residues (Asp or Glu) were mutated to residue Lys, CrmE10 obtained elevated alkaline adaptability and significantly increased the enzymatic activity from 0 to 20% at pH 10.5. Also, CrmE10 mutants exhibited dramatic change for enzymatic properties when compared with the wide-type enzyme. CONCLUSIONS These findings offer a perspective for understanding the catalytic mechanism of different esterases and might facilitate the industrial biocatalytic applications.
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Affiliation(s)
- Zhengyang Li
- State Key Laboratory of Genetic Engineering, School of Life Sciences, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, Fudan University, Shanghai, 200438 China
| | - Long Li
- State Key Laboratory of Genetic Engineering, School of Life Sciences, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, Fudan University, Shanghai, 200438 China
| | - Yingyi Huo
- Key Laboratory of Marine Ecosystem Dynamics, Ministry of Natural Resources, Ministry of Natural Resources & Second Institute of Oceanography, Hangzhou, 310012 China
| | - Zijun Chen
- State Key Laboratory of Genetic Engineering, School of Life Sciences, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, Fudan University, Shanghai, 200438 China
| | - Yu Zhao
- State Key Laboratory of Genetic Engineering, School of Life Sciences, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, Fudan University, Shanghai, 200438 China
| | - Jing Huang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, Fudan University, Shanghai, 200438 China
| | - Shuling Jian
- Key Laboratory of Marine Ecosystem Dynamics, Ministry of Natural Resources, Ministry of Natural Resources & Second Institute of Oceanography, Hangzhou, 310012 China
| | - Zhen Rong
- Key Laboratory of Marine Ecosystem Dynamics, Ministry of Natural Resources, Ministry of Natural Resources & Second Institute of Oceanography, Hangzhou, 310012 China
| | - Di Wu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, Fudan University, Shanghai, 200438 China
| | - Jianhua Gan
- State Key Laboratory of Genetic Engineering, School of Life Sciences, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, Fudan University, Shanghai, 200438 China
| | - Xiaojian Hu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, Fudan University, Shanghai, 200438 China
| | - Jixi Li
- State Key Laboratory of Genetic Engineering, School of Life Sciences, MOE Engineering Research Center of Gene Technology, Shanghai Engineering Research Center of Industrial Microorganisms, Fudan University, Shanghai, 200438 China
| | - Xue-Wei Xu
- Key Laboratory of Marine Ecosystem Dynamics, Ministry of Natural Resources, Ministry of Natural Resources & Second Institute of Oceanography, Hangzhou, 310012 China
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Qin-kai Z, Bing G, Wei D, Xue-xin T, Jian S, Chen-ping Z, Qin XJ. Radial forearm flaps with venous compromise: correlations between salvage techniques and their rates of success. Br J Oral Maxillofac Surg 2018; 56:510-513. [DOI: 10.1016/j.bjoms.2018.04.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 04/24/2018] [Indexed: 11/24/2022]
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Wu WC, Wang W, Song HM, Ma MS, Tang XY, Jian S, Zhang MQ, Xiao J, Qiu ZQ, Liu YL. [A major histocompatibility complex class Ⅱ deficiency case report and literature review]. Zhonghua Er Ke Za Zhi 2017; 54:614-8. [PMID: 27510876 DOI: 10.3760/cma.j.issn.0578-1310.2016.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To summarize and report the clinical characteristics and laboratory results of a case and those reported in literature with MHC class Ⅱ deficiency. METHOD The clinical features, laboratory results and gene mutation analysis of an infant with MHC class Ⅱ deficiency, who was diagnosed and treated in Peking Union Medical College Hospital since December 2013, were retrospectively analyzed."Major histocompatibility complex class Ⅱ deficiency"or"bare lymphocyte syndrome"were used as keywords in order to retrieve reports from CNKI (from its establishment to October 2015) and Wanfang Database (from its establishment to October 2015), PubMed Database (from its establishment to October 2015) was searched. The characteristics, diagnosis, treatment and prognosis were summarized by reviewing related articles. RESULT The patient was a 8-month-old boy. Since the fourth month of life, he started to have repeated fever, susceptible to a variety of pathogens, immune hemolytic anemia, severe malnutrition, and finally diagnosed as MHC class Ⅱ deficiency disease when he was 20-month-old.No related reports were retrieved from CNKI and Wanfang database, there were 20 articles and 179 patients were reported worldwide in the past 10 years. Patients exhibit an extreme vulnerability to infections(resptratory infection(82%, 146/178), inpection of gastroin testinal(76%, 135/178)). The common laboratory examinations showed hypogammaglobulinemia, CD4(+) lymphopenia(93%, 107/115) etc. Diagnosis relies on the flow-cytometric analysis and genetic analysis. CONCLUSION It is considered necessary for patients with young onset age, manifestation of clinically opportunistic infection as immune deficient disease, including the MHC class Ⅱ deficiency disease, especially long-term diarrhea, poor development and cryptosporidium infection. This disease could coexist with autoimmune disorders.
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Affiliation(s)
- W C Wu
- Department of Pediatrics, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing 100730, China
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Cong QX, Zhang H, Sun SX, Li HF, Wang Y, Jian S. Pilot study special AT-rich sequence-binding protein 1 investigating as a potential biomarker for esophageal squamous cell carcinoma. Dis Esophagus 2016; 29:621-6. [PMID: 25951709 DOI: 10.1111/dote.12365] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In the present study, we aimed to evaluate the expression of special AT-rich sequence-binding protein 1 (SATB1) in esophageal squamous cell carcinoma (ESCC) and assess the correlation between its expression and the clinicopathological features and prognosis of the disease. SATB1 expression in ESCC tissue was determined by using immunohistochemical analysis, quantitative real-time polymerase chain reaction, and western blot analysis. The relationship between SATB1 expression and clinicopathological features was examined by using the chi-squared test, and the survival rate was calculated by using the Kaplan-Meier survival curve. The correlation between the indicators and patient survival was estimated by using a Cox regression analysis. High SATB1 expression in was detected in 48.3% and 7.8% of ESCC and normal esophagus tissues (P < 0.05), respectively. SATB1 expression did not significantly correlate with clinicopathological features. The Kaplan-Meier curve indicated that patients with high SATB1 expression had significantly shorter survival than those with low SATB1 expression. In a multivariate Cox regression model, high SATB1 expression was identified as an independent prognostic factor for patients with ESCC. In conclusion, these results suggest that high SATB1 expression is predictive of poor prognosis in ESCC and may be a promising new candidate for targeted therapies for ESCC.
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Affiliation(s)
- Q-X Cong
- Department of Radiology, Daqing Longnan Hospital of the 5th Affiliated Hospital of Qiqihaer Medical College, Daqing, China
| | - H Zhang
- Department of Radiology, Daqing Longnan Hospital of the 5th Affiliated Hospital of Qiqihaer Medical College, Daqing, China
| | - S-X Sun
- Department of Radiology, Chongqing City Hospital of Traditional Chinese Medicine, Chongqing, China
| | - H-F Li
- Department of Pathology, General Hospital of Daqing Oil Field, Daqing, China
| | - Y Wang
- Department of Radiology, Daqing Longnan Hospital of the 5th Affiliated Hospital of Qiqihaer Medical College, Daqing, China
| | - S Jian
- Department of Oncology, Chongqing City Hospital of Traditional Chinese Medicine, Chongqing, China
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Jian S, Hui-jiao G, Ming-ming L, Wen-li H, Chun-yan Y, Zhe W. e0681 Effect of chemotatic factor FKN on NF- B and TNF- expression in peripheral blood monocytes and the role of PI3K. Heart 2010. [DOI: 10.1136/hrt.2010.208967.681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
Reforms of the economic and research and development management systems are spreading far and wide in China in a planned manner. The creative and pragmatic spirit demonstrated by the Chinese government in these reforms has won enthusiastic support of the Chinese people and aroused keen interest of statesmen, economists, and scientists the world over. The four previously established special economic zones, the opening up of 14 coastal cities and Hainan Island to foreign investment, and the smooth settlement of the Hong Kong issue by means of "one country, two systems" have brought new splendor to China's reforms. Many people in the press regard the decision of "one country, two systems" as the most courageous and fascinating creation of the 20th century.
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Johnson PD, Valla T, Fedorov AV, Yusof Z, Wells BO, Li Q, Moodenbaugh AR, Gu GD, Koshizuka N, Kendziora C, Jian S, Hinks DG. Doping and temperature dependence of the mass enhancement observed in the cuprate Bi(2)Sr(2)CaCu(2)O(8+delta). Phys Rev Lett 2001; 87:177007. [PMID: 11690300 DOI: 10.1103/physrevlett.87.177007] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2001] [Indexed: 05/23/2023]
Abstract
High-resolution photoemission is used to study the electronic structure of the cuprate superconductor, Bi(2)Sr(2)CaCu(2)O(8+delta), as a function of hole doping and temperature. A kink observed in the band dispersion in the nodal line in the superconducting state is associated with coupling to a resonant mode observed in neutron scattering. From the measured real part of the self-energy it is possible to extract a coupling constant which is largest in the underdoped regime, then decreasing continuously into the overdoped regime.
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Affiliation(s)
- P D Johnson
- Department of Physics, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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17
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Shukun H, Youqun S, Jindong Z, Jian S. Mechanism of electroreduction of allyl alcohol at platinized platinum electrode in acidic aqueous solution. J Org Chem 2001; 66:4487-93. [PMID: 11421766 DOI: 10.1021/jo0012288] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The electroreduction of allyl alcohol to form propene at the platinized platinum electrode in acidic aqueous solution has been studied using CV plots, IR, ESR, and MS spectra, and a semiempricial MO method (MOPAC7/AM1, PM3). From the determinations of charge-transfer coefficients, reaction orders and apparent activation energy for the given reaction, the detection of the intermediates such as C(3)H(5)(+), C(3)H(5)(*), and C(3)H(5)(-) species, and PM3 calculations of charge distribution and frontier orbital energies of the reaction species C(3)H(5)OH and C(3)H(5)(+), the authors suggest that in acidic aqueous solution the production of propene via reductive splitting of the C-OH bond situated in the allyl position of allyl alcohol obeys a carbonium ion-carbanion mechanism.
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Affiliation(s)
- H Shukun
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
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18
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Lu B, Dai R, Bai H, He S, Jian S, Zhuang N, Budoff MJ. Effects of scanning and reconstruction parameters on image quality in electron-beam CT angiography: coronary artery phantom study. Acad Radiol 2000; 7:927-33. [PMID: 11089695 DOI: 10.1016/s1076-6332(00)80174-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
RATIONALE AND OBJECTIVES This study compared the image quality obtained with different scanning and reconstruction parameters for electron-beam computed tomographic (CT) angiography and sought optimal methods for visualizing the coronary artery lumen. MATERIALS AND METHODS Electron-beam CT angiography with contrast material enhancement was used to image 35 branches of fresh postmortem swine coronary arteries. Different collimation widths, fields of view (FOVs), reconstruction kernels, and algorithms were employed to reconstruct the acquired raw data into CT angiographic images. Image quality was compared and analyzed. RESULTS The contrast-to-noise ratios (C/Ns) for 1.5-, 2-, and 3-mm section thickness were 28.4 +/- 15.2, 31.9 +/- 9.3, and 33.8 +/- 14.5, respectively (P < .05). The lengths of visualized coronary artery lumina were significantly longer for 1.5-mm scanning (71.6 mm +/- 4.3) than for 2-mm (58.3 mm +/- 5.5) and 3-mm scanning (59.0 mm +/- 8.0) (P < .01). The C/Ns for 12.7-, 18.0-, and 26.0-cm FOV reconstruction were 32.8 +/- 9.9, 28.9 +/- 8.2, and 27.1 +/- 8.2, respectively (not significant), and the visualized luminal lengths were 76.1 mm +/- 12.5, 71.7 mm +/- 14.6, and 65.4 mm +/- 13.1, respectively (not significant). The highest C/N (48.2 +/- 13.3) was achieved with smooth kernels and a cone-beam algorithm, and the lowest (14.7 +/- 3.4) with very sharp kernels and a normal algorithm. Cone-beam algorithm images had significantly higher C/Ns than did normal algorithm images (P < .001), and they demonstrated longer coronary artery lumina (P < .01). CONCLUSION Collimation width, FOV, reconstruction kernels, and algorithms are important in the processing of high-quality electron-beam coronary angiograms. A 1.5-mm collimation width, 12.7-cm FOV, cone-beam reconstruction algorithm, and very sharp kernels should help in obtaining the best image quality and depicting the longest segments of coronary artery lumen.
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Affiliation(s)
- B Lu
- Department of Radiology, FuWai Cardiovascular Institute and Hospital, Peking Union Medical College, and the Chinese Academy of Medical Sciences, Beijing
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Wei D, Li T, Zhao Y, Jian S. Multiwavelength erbium-doped fiber ring lasers with overlap-written fiber Bragg gratings. Opt Lett 2000; 25:1150-1152. [PMID: 18066150 DOI: 10.1364/ol.25.001150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Eight-wavelength Er-doped fiber lasers with lasing wavelength separations of ~1.6 and ~0.8 nm , respectively, have been achieved by use of overlap-written fiber Bragg gratings (OWFBG's) in the fiber lasers and by cooling of the Er-doped fiber with liquid N(2) . Our experiment shows that by utilizing the OWFBG's to select the lasing wavelengths one can achieve fiber lasers with lasing wavelengths and lasing wavelength separations that match the International Telecommunication Union channel-allocation grid well.
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20
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Jian S, Wang F, Huang H. [Current status of modern medical researches on acupuncture]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2000; 20:473-5. [PMID: 11789236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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21
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Jian S, Cheynet F, Amrouche M, Chossegros C, Ferrara JJ, Blanc JL. [Maxillary pre-implant rehabilitation: a study of 55 cases using autologous bone graft augmentation]. Rev Stomatol Chir Maxillofac 1999; 100:214-20. [PMID: 10604212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Preprosthetic rehabilitation of the maxillary bone is sometimes difficult due to severe bone resorption in the posterolateral regions. The sinus lift with autogenous bony graft has given us satisfactory results since 1990 but requires a rigorous protocol before and during surgery to assure a lasting anchorage to the prosthesis. We describe morbidity and technical choices of this intervention in a series of 55 patients.
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Affiliation(s)
- S Jian
- Service de Chirurgie Maxillo-Faciale et Stomatologie, C.H.U. Timone, Marseille, France
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22
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Chen X, Jian S, Wang H. [The study on clinical significance of human herpesvius 6 infection of NPC tissues]. Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi 1999; 13:262-5. [PMID: 12569760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
OBJECTIVE To study the infection of human herpesvirus 6(HHV-6) in NPC and its role in the carcinogensis of NPC. METHODS By using polymerase chain reaction (PCR) and in situ hybridization (ISH) HHV-6 and EBV DNA to from the paraffin-embedded tissues of normal nasopharynx precancerous nasopharynx and nasopharyngeal carcinoma. EBV LMP1 was also detected in 36 tissues of NPC by immunohistochemistry (IHC). RESULTS HHV-6 DNA PCR were detected in 30.9% (13/42) of tissues of NPC, 4.7% (1/21) of precancerous nasopharynx and non in the normal nasopharynx. Within the same tissues, EBV DNA positive rates were 95.2% (40/42), 66.6% (14/21) and 25.9% (7/27), respectively. By using ISH, HHV-6 DNA were detected only in 11 NPC tissues out of 13 HHV-6 DNA positive NPC cases and EBV DNA were detected in 47.6% (10/21) of precancerous nasopharynx tissues and 85.7% (36/42) of NPC cases. EBV LMP1 expression were detected in 47.2% (17/36) of NPC tissues. CONCLUSION NPC tissues can be infected with both HHV-6 and EBV, HHV-6 infection is correlated with the expression of EBV LMP1, suggesting that HHV-6 plays a direct/or indirect role in carcinogenesis of NPC via upregulating the expression of EBV LMP1.
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Affiliation(s)
- X Chen
- Shenzhen Eastlake Hospital, Shenzhen, 518020
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23
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Chossegros C, Falanga HJ, Cheynet F, Arnaud R, Jian S, Blanc JL. [Therapeutic arthroscopy for recurrent temporomandibular luxation]. Rev Stomatol Chir Maxillofac 1998; 99 Suppl 1:115-9. [PMID: 9697243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Surgery is sometimes indicated in cases of recurrent temporomandibular joint dislocation (luxation). Among the panel of available techniques, therapeutic arthroscopy with retrodiscal tissue and oblique protuberance coagulation has been used to prevent new episodes. Therapeutic arthroscopy was used for 6 patients. Outcome was considered to be satisfactory in 66% with a mean 3.1-year follow-up. This technique can be recommended as first line therapy when surgery is indicated. In case of failure, eminectomy is scheduled.
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Affiliation(s)
- C Chossegros
- Clinique de Stomatologie et Chirurgie Maxillo-faciale, Marseille
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24
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Jian S. No impasse for China's development. China Popul Today 1997; 14:8-9. [PMID: 12347921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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25
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Yi Y, Shi K, Lu W, Jian S. Phase modulation spectroscopy using an all-fiber piezoelectric transducer modulator for a resonator fiber-optic gyroscope. Appl Opt 1995; 34:7383-7386. [PMID: 21060612 DOI: 10.1364/ao.34.007383] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The theoretical analysis and experimental demonstration of phase modulation spectroscopy employing an all-fiber piezoelectric transducer modulator for a fiber ring resonator fiber-optic gyroscope is presented for the first time as far as we know. The results support the feasibility of such a technique as a rotation detection scheme for a resonator fiber-optic gyroscope.
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Abstract
Localized patterned visual stimulation was used in rats to investigate the feasibility of stimulus-dependent induction of the immediate early gene c-fos in neurons of cortical and subcortical visual centers of this mammal. Moving and stationary visual patterns, consisting of gratings and arrays of dark dots, induced Fos-like immunoreactivity in populations of neurons in retinotopically corresponding stimulated regions of the dorsal and ventral lateral geniculate nucleus (dLGN, vLGN), stratum griseum superficiale of the superior colliculus, nucleus of the optic tract, and primary (striate) visual cortex. Only moving stimuli induced Fos-like immunoreactive (FLI) neurons in extrastriate visual areas, particularly in the anterolateral (AL) visual area. This suggests that area AL is equivalent to the motion sensitive areas MT and PMLS of the monkey and cat. Stimulus-induced FLI neurons in the striate cortex were predominantly distributed in layers 4 and 6, while few labeled neurons were present in layers 2-3, and almost none in layer 5. The laminar distribution of stimulus-induced FLI cells in the extrastriate cortical area AL was similar to that of the striate cortex, with the exception that more FLI cells were present in layer 5. Statistical comparison of somata size of the stimulus-induced FLI neurons in dLGN with that of Cresyl violet stained neurons in the same sections revealed that the population of geniculate FLI neurons is composed of relay cells and interneurons.
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Affiliation(s)
- V M Montero
- Department of Neurophysiology, University of Wisconsin, Madison 53705, USA
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Simmons P, Jian S, Rind F. CHARACTERISATION OF LARGE SECOND-ORDER OCELLAR NEURONES OF THE BLOWFLY CALLIPHORA ERYTHROCEPHALA. J Exp Biol 1994; 191:231-45. [PMID: 9317701 DOI: 10.1242/jeb.191.1.231] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
1. Blowflies have twelve large, second-order ocellar neurones (L-neurones) with axons in the single ocellar nerve. These neurones have fairly restricted arborizations in the posterior slope neuropile of the protocerebrum and cell bodies in the nerve, near to the fused ocellar retinae. 2. Like ocellar L-neurones of other insects, or large second-order neurones of the fly compound eye, blowfly L-neurones hyperpolarise in response to increases in light intensity and depolarise in response to decreases in light intensity. Both polarities of response have a strong phasic component. Adaptation to sustained illumination shifts the intensity­response curve, with little change in its gradient. 3. The maximum responses of blowfly L-neurones to sinusoidal changes in light intensity occur at stimulus frequencies of 5­10 Hz. 4. Hyperpolarising an L-neurone with small currents causes an increase in input resistance. Larger hyperpolarising currents cause oscillations in the membrane potential. The amplitude of the oscillations increases with current strength. Repolarisation generates brief rebound spikes of variable amplitude. 5. Injection of small hyperpolarising currents increases the amplitude of a response to a subsaturating pulse of light. This effect is not seen for saturating responses to light and is likely to be due to the increase in membrane resistance caused by hyperpolarisation.
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28
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Jian S. [Carcinoma of the cervical stump. Clinic analysis of 10 cases]. Zhonghua Fu Chan Ke Za Zhi 1992; 27:227-9, 251. [PMID: 1291221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Ten cases of carcinoma of the cervical stumps from Jan. 1965 to Dec. 1990 were analysed. All of the patients received subtotal hysterectomy because majority of patients suffered from benign uterine tumors except one case of ovarian cystadenocarcinoma. The age range of the patients was 40-65 years old. The stump carcinoma was discovered 2-18 years later after primary operations. The average duration was 10.3 years. Only one patient died of 2 years after treatment, remaining patients have good health by surgical and radiotherapy. The authors emphasize that the key to prevent the cervical stump carcinoma is to avoid missing diagnoses of the precancerous lesion and cancer of the cervix, and to closely follow-up the patients with the stumps.
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Affiliation(s)
- S Jian
- Affiliated Hospital of Shandong Medical University, Jinan
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29
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Jian S. [Inhibitory effects of enzymolytic product from normal human plasma on hematogenous metastasis of murine gastric carcinoma cells]. Zhonghua Yi Xue Za Zhi 1991; 71:551-4, 38. [PMID: 1665388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Enzymolytic product (EP) of normal human plasma (NHP), was prepared through combined digestion of alpha-chymotrypsin and pepsin. This product was studied with MGc 80-3 cells (human gastric carcinoma cell line) and FC cells (615-murine gastric carcinoma cell line). The adhesive rate of NHP to MGc 80-3 cells may reach 90%, while the capacity of NHP-EP to inhibit adhesion reached over 90%, being specific and non-cytotoxic. Intravenous coinjection of NHP-EP with FC murine gastric carcinoma cells remarkably inhibited the formation of lung tubercles in 615-mice, with an inhibitory rate of 83.3% and a median survival time prolonged 35 days, which was only 19 days in the controls. The results showed that NHP-EP can inhibit experimental hematogenous metastasis through interfering the adhesion of tumor cells to extracellular stroma. We believe that NHP-EP may have practical value in preventing, seeding of metastatic cells after surgical removal of a primary tumor.
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Jian S. [Isolation chemotherapy at the pelvic vascular bed in the management of advanced cervical cancer]. Zhonghua Fu Chan Ke Za Zhi 1987; 22:218-9, 253. [PMID: 3117504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Abstract
Nine cases of CEOT are reported. There are seven intra-osseous and two extraosseous tumors. All but one occurred in the mandible. The age range was 20 to 64 years; averaging 34.2 years. There were 7 females and 2 males. Radiographically, they appeared either as monocystic or polycystic translucent lesions with radiopaque spots or masses. Embedded teeth were seen in six cases. Microscopically, four different patterns are described. No recurrence has been found postoperatively within 2-14 years of follow-up study. The nature of the reddish homogeneous material, the histogenesis of the tumor and the treatment are briefly discussed.
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