|
1
|
Siwach P, Arumugam P, Modi S, Ferreira LS, Maglione E. Proton emission study as a guide to astrophysical rp process. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202226011039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Proton emitters play an important role in deciding the path of the astrophysical rapid proton capture (rp) process. The lifetime of these nuclei depends on several factors, like the deformation, angular momentum of the emitted proton, residual interaction between valence proton and neutron (especially in case of odd-odd nuclei) and so on. Therefore, it is worth to investigate the structure of proton emitters to understand the rp process path. However, due to lack of data in this exotic region, the theoretical models should be robust and the dependence on the free parameters should be minimal. In this direction, we have developed the first microscopic approach to study the triaxially deformed odd-odd proton emitters. The application of the developed approach to 108I, a recently observed proton emitter to investigate the end cycle of the rp process, is discussed.
Collapse
|
|
2
|
Wang X, Cao K, Guo E, Mao X, An C, Guo L, Zhang C, Guo J, Yang X, Sun J, Yang W, Li X, Miao S. Assessment of immune status of laryngeal squamous cell carcinoma can predict prognosis and guide treatment. Cancer Immunol Immunother 2021; 71:1199-1220. [PMID: 34643766 DOI: 10.1007/s00262-021-03071-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/27/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND In the past few years, immunotherapy has changed the way we treat solid tumors. People pay more and more attention to the immune microenvironment of laryngeal squamous cell carcinoma (LSCC). In this study, our immunotherapy research took advantage of the clinical database and focused our in-depth analysis on the tumor microenvironment (TME). METHODS This study evaluated the relationship between the clinical outcome and the local tissue and overall immune status in 412 patients with primary LSCC. We constructed and validated a risk model that could predict prognosis, assess immune status, identify high-risk patients, and develop personalized treatment plans through bioinformatics. In addition, through immunohistochemical analysis, we verified the differential expression of CTSL and KDM5D genes with the largest weight coefficients in the model in LSCC tissues and their influence on the prognosis and tumor-infiltrating lymphocytes (TILs). RESULTS We found that interstitial tumor-infiltrating lymphocytes, tumor parenchymal-infiltrating lymphocyte volume, tumor infiltrates lymphocytes of frontier invasion, and the platelet-to-lymphocyte ratio (PLR) were independent factors affecting the prognosis of patients with LSCC. A novel risk model can guide clinicians to accurately predict prognosis, identify high-risk patients, and formulate personalized treatment plans. The differential expression of genes such as CTSL and KDM5D has a significant correlation with the TILs of LSCC and the prognosis of patients. CONCLUSION Local and systemic inflammatory markers in patients with laryngeal squamous cell carcinoma are reliable prognostic factors. The risk model and CTSL, KDM5D gene have important potential research value.
Collapse
Affiliation(s)
- Xueying Wang
- Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, Harbin, 150081, China
| | - Kui Cao
- Department of Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150081, China
| | - Erliang Guo
- Department of Surgery, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150081, China
| | - Xionghui Mao
- Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, Harbin, 150081, China
| | - Changming An
- Department of Head and Neck Surgery, Chinese National Cancer Center &, Chinese Academy of Medical Sciences Cancer Hospital, Beijing, China
| | - Lunhua Guo
- Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, Harbin, 150081, China
| | - Cong Zhang
- Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, Harbin, 150081, China
| | - Junnan Guo
- Department of Colorectal Surgery, Harbin Medical University Cancer Hospital, Harbin, 150081, China
| | - Xianguang Yang
- Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, Harbin, 150081, China
| | - Ji Sun
- Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, Harbin, 150081, China
| | - Weiwei Yang
- Department of Pathology, Harbin Medical University, Harbin, 150081, China
| | - Xiaomei Li
- Department of Pathology, Harbin Medical University Cancer Hospital, Harbin, 150081, China.
| | - Susheng Miao
- Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, Harbin, 150081, China.
| |
Collapse
|
|
3
|
Hoff DEM, Rogers AM, Wang SM, Bender PC, Brandenburg K, Childers K, Clark JA, Dombos AC, Doucet ER, Jin S, Lewis R, Liddick SN, Lister CJ, Meisel Z, Morse C, Nazarewicz W, Schatz H, Schmidt K, Soltesz D, Subedi SK, Waniganeththi S. Mirror-symmetry violation in bound nuclear ground states. Nature 2020; 580:52-55. [PMID: 32238942 DOI: 10.1038/s41586-020-2123-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 01/22/2020] [Indexed: 11/09/2022]
Abstract
Conservation laws are deeply related to any symmetry present in a physical system1,2. Analogously to electrons in atoms exhibiting spin symmetries3, it is possible to consider neutrons and protons in the atomic nucleus as projections of a single fermion with an isobaric spin (isospin) of t = 1/2 (ref. 4). Every nuclear state is thus characterized by a total isobaric spin T and a projection Tz-two quantities that are largely conserved in nuclear reactions and decays5,6. A mirror symmetry emerges from this isobaric-spin formalism: nuclei with exchanged numbers of neutrons and protons, known as mirror nuclei, should have an identical set of states7, including their ground state, labelled by their total angular momentum J and parity π. Here we report evidence of mirror-symmetry violation in bound nuclear ground states within the mirror partners strontium-73 and bromine-73. We find that a J π = 5/2- spin assignment is needed to explain the proton-emission pattern observed from the T = 3/2 isobaric-analogue state in rubidium-73, which is identical to the ground state of strontium-73. Therefore the ground state of strontium-73 must differ from its J π = 1/2- mirror bromine-73. This observation offers insights into charge-symmetry-breaking forces acting in atomic nuclei.
Collapse
Affiliation(s)
- D E M Hoff
- Department of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, MA, USA.
| | - A M Rogers
- Department of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, MA, USA.
| | - S M Wang
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI, USA
| | - P C Bender
- Department of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, MA, USA
| | - K Brandenburg
- Department of Physics and Astronomy, Ohio University, Athens, OH, USA
| | - K Childers
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI, USA.,Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - J A Clark
- Physics Division, Argonne National Laboratory, Argonne, IL, USA
| | - A C Dombos
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI, USA.,Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA.,JINA-CEE, Michigan State University, East Lansing, MI, USA
| | - E R Doucet
- Department of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, MA, USA
| | - S Jin
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI, USA.,JINA-CEE, Michigan State University, East Lansing, MI, USA
| | - R Lewis
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI, USA.,Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - S N Liddick
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI, USA.,Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - C J Lister
- Department of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, MA, USA
| | - Z Meisel
- Department of Physics and Astronomy, Ohio University, Athens, OH, USA
| | - C Morse
- Department of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, MA, USA.,Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - W Nazarewicz
- Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA.,FRIB Laboratory, Michigan State University, East Lansing, MI, USA
| | - H Schatz
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI, USA.,Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA.,JINA-CEE, Michigan State University, East Lansing, MI, USA
| | - K Schmidt
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI, USA.,JINA-CEE, Michigan State University, East Lansing, MI, USA.,Institute of Nuclear and Particle Physics, TU Dresden, Dresden, Germany
| | - D Soltesz
- Department of Physics and Astronomy, Ohio University, Athens, OH, USA
| | - S K Subedi
- Department of Physics and Astronomy, Ohio University, Athens, OH, USA
| | - S Waniganeththi
- Department of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, MA, USA
| |
Collapse
|