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Haan SW, Clark DS, Baxamusa SH, Biener J, Hopkins LB, Bunn T, Callahan DA, Carlson L, Dittrich TR, Edwards MJ, Hammel BA, Hamza A, Hinkel DE, Ho DD, Hoover D, Hsing W, Huang H, Hurricane OA, Johnson MA, Jones OS, Kritcher AL, Landen OL, Lindl JD, Marinak MM, MacKinnon AJ, Meezan NB, Milovich J, Nikroo A, Peterson JL, Patel P, Robey HF, Salmonson JD, Smalyuk VA, Spears BK, Stadermann M, Weber SV, Kline JL, Wilson DC, Simakov AN, Yi A. Update 2015 on Target Fabrication Requirements for NIF Layered Implosions, with Emphasis on Capsule Support and Oxygen Modulations in GDP. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst15-244] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Meyberg-Solomayer G, Gerlinger C, Hamza A, Schlaegel F, Takacs Z, Solomayer EF. Cervical Strain Elastography in Pregnancy and Association with Maternal Factors. ULTRASCHALL IN DER MEDIZIN (STUTTGART, GERMANY : 1980) 2017; 38:71-77. [PMID: 25734411 DOI: 10.1055/s-0034-1398991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Purpose To assess cervical elasticity in different regions by sonoelastography, to compare the results to the Bishop score, cervical length, week of pregnancy and other maternal factors (age, weight, parity) and to evaluate the reproducibility of the method. Materials and Methods 131 patients between 17 - 41 gestational weeks were examined by transvaginal cervical strain elastography. In the sagittal view strain values were calculated in 7 regions of interest (ROI; external and internal os anterior/posterior, middle part anterior/posterior, cervical canal). In the cross sectional views strain values in 3 ROIs were evaluated at the level of the internal and external cervical os (anterior/posterior, cervical canal). The intra- and interobserver variance was tested. Results Strain values differed highly significantly in different parts of the cervix (p < 0.001). The anterior parts and the cervical canal were significantly softer with increasing gestational age and Bishop score, and the posterior parts were significantly harder with increasing maternal age, weight, parity. Cervical length showed an inverse relationship to cervical softness. The intra- and interobserver variance was low. Conclusion Elastography is a reproducible method for the evaluation of cervical elasticity in pregnancy. It showed a significant association with the Bishop score and other maternal factors and could provide additional information about changes in cervical stiffness in pregnancy.
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Joukhadar R, Baum S, Radosa J, Gerlinger C, Hamza A, Juhasz-Böss I, Solomayer EF. Safety and perioperative morbidity of laparoscopic sacropexy: a systematic analysis and a comparison with laparoscopic hysterectomy. Arch Gynecol Obstet 2016; 295:641-649. [PMID: 27896472 DOI: 10.1007/s00404-016-4240-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 11/11/2016] [Indexed: 11/30/2022]
Abstract
PURPOSE The high prevalence of Pelvic Organ Prolapse (POP) along with the demographic trend of the ageing population raises the value of sacropexy in the treatment of POP. Thus, efforts to decrease risks associated with this procedure have the potential for public health impact. We examined the perioperative morbidity of laparoscopic sacropexy regarding the surgical access and compared it with the morbidity of one of the most common gynecological procedure, the laparoscopic hysterectomy. Our aim was to prove the safety of laparoscopic sacropexy. METHODS A retrospective evaluation of 80 consecutive laparoscopic sacropexies performed from Sept. 2012 until Oct. 2014 and 126 laparoscopic hysterectomies for a benign indication were undertaken. We assessed the anatomical outcome and the intra- and postoperative complications using the classification system according to Clavien-Dindo (CD). RESULTS Apical success rate after sacropexy was 100% and global success rate was 95% (POP-Q stage ≤1). The decline in hemoglobin was low in both groups and showed no statistically significant differences. Both operative time (P < 0.001) and the duration of hospitalization (P < 0.001) were longer in case of a sacropexy. Although overall intraoperative complications seemed more frequent during a sacropexy, differences were not statistically significant. Both early and late postoperative complications showed a higher rate of mild complications (CD-I/II) and a lower rate of severe complications (CD-IIIa/IIIb) after a sacropexy. The differences were not statistically significant. CONCLUSION The laparoscopic sacropexy represents a safe procedure with good anatomical outcome. Despite higher technical severity, it doesn't seem to bare higher risks for perioperative morbidity than the laparoscopic hysterectomy does.
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Radosa JC, Radosa CG, Mavrova R, Wagenpfeil S, Hamza A, Joukhadar R, Baum S, Karsten M, Juhasz-Boess I, Solomayer EF, Radosa MP. Postoperative Quality of Life and Sexual Function in Premenopausal Women Undergoing Laparoscopic Myomectomy for Symptomatic Fibroids: A Prospective Observational Cohort Study. PLoS One 2016; 11:e0166659. [PMID: 27898669 PMCID: PMC5127523 DOI: 10.1371/journal.pone.0166659] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Accepted: 11/01/2016] [Indexed: 11/18/2022] Open
Abstract
Introduction Uterine leiomyomas are the most common benign gynecologic tumors. To date laparoscopy myomectomy is the gold standard for treatment of symptomatic fibroids in reproductive-aged women. Detailed counseling about the effects of this procedure on postoperative sexuality and quality of life is important in these patients. However, available data on these subjects are limited and contradictory. The aim of this study was to assess sexual function and quality of life in premenopausal women undergoing laparoscopic myomectomy for symptomatic uterine fibroids. Material and Methods All premenopausal women who underwent laparoscopic myomectomy for symptomatic fibroids between April 2012 and August 2014 at a tertiary university center were enrolled in this prospective observational cohort study. Sexual function and quality of life were assessed for the pre- and postoperative (six months post-operatively) state using two validated questionnaires, the Female Sexual Function Index (FSFI) and the European Quality of Life Five-Dimension Scale (EQ-5D). Results Ninety-five of the 115 (83%) eligible patients completed the study. Overall a significant improvement in quality of life and sexual function was observed in the study cohort: Median FSFI (28 (18.7–35.2)) and EQ-5D scores (1 (0.61–1) after laparoscopic myomectomy were significantly higher than preoperative scores (21.2 (5.2–33.5); 0.9 (0.2–1); p ≤ 0.01). The number, position and localization of the largest fibroids were not correlated with pre- or postoperative sexual function or quality of life. Conclusion Laparoscopic myomectomy might have positive short-term effects on postoperative quality of life and sexual function in premenopausal women suffering from symptomatic fibroids.
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Hamza A, RIssland J, Lehrmann S, Frenzel J, Solomayer EF. Die medizinische Versorgung von Flüchtlingen im Saarland mit speziellem Fokus auf die Gynäkologie und Geburtshilfe. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1592751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Hamza A, Warczok C, Wagenpfeil G, Solomayer EF, Juhasz-Boess I, Meyberg-Solomayer G, Radosa J. Fragebogen zur Miteinbindung von Medizinstudenten/-innen in den klinischen Alltag. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1593056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Joukhadar R, Herr D, Hamza A, Meyberg-Solomayer G, Takacs Z, Baum S. Diagnose und Management des retroflexio uteri gravidi mit akutem Harnverhalt in der Schwangerschaft in einer Fallserie von 6 Fällen. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1592844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Joukhadar R, Wulff C, Solomayer E, Hamza A, Baum S. Darstellung und laparoskopische Behandlung einer vesicovaginalen Fistel in zwei Fallbeispielen. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1592862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Radosa JC, Schweitzer PA, Stotz L, Hamza A, Papaioannou C, Schmidt G, Sklavounos P, Juhasz-Böss I, Lepper P, Solomayer EF, Radosa MP. Prospektive randomisierte Studie zum Vergleich des Einflusses zweier verschiedener intraoperativer CO2-Maximalwerte (10 und 15 mm Hg) während laparoskopischer Hysterektomie aufgrund benigner uteriner Pathologie. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1593122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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George F, Stotz L, Hamza A, Papaioannou C, Solomayer EF, Giebels C, Radosa MP, Radosa JC. Myxoiden Leiomyosarkom mit intravenöser Ausdehnung über die Vena cava bis zum rechten Vorhof – ein Case Report und Literaturrecherche. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1593307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Bushuven E, Wieczorek A, Stotz L, Hamza A, Juhasz-Böss I, Papaioannou C, Solomayer EF, Radosa MP, Radosa JC. Nahtdehiszenz nach totaler laparoskopischer Hysterektomie – Inzidenz und Risikofaktoren. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1593130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Hamza A, Hagmann J, Solomayer EF, Radosa J, Wagenpfeil S, Meyberg-Solomayer G, Takacs Z, Kasoha M. Postpartale Verläufe der antiangiogenetische Marker s-Flt-1und PLGF bei präeklamptischen Patientinnen im Bezug auf den klinischen Verlauf. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1593217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Stotz L, Schweitzer PA, Hamza A, Joukhadar R, Juhasz-Böss I, Solomayer EF, Radosa MP, Radosa JC. Implementierung und Validierung eines postoperativen Schmerzprotokolls für laparoskopische Eingriffe. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1593121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Ströder R, Radosa JC, Gabriel L, Heesen AV, Hamza A, Solomayer EF, Juhasz-Böss I. Parasitäre Leiomyome als seltene Komplikation von Morcellement. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1592797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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von Heesen A, Takacs Z, Gabriel L, Hamza A, Linxweiler M, von Heesen M, Meyberg-Solomayer G, Solomayer EF, Juhasz-Böss I. Conversion of intraperitoneal cytology during laparoscopic surgery of uterine cancer. Arch Gynecol Obstet 2016; 294:847-54. [PMID: 27177538 DOI: 10.1007/s00404-016-4102-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 04/08/2016] [Indexed: 11/29/2022]
Abstract
INTRODUCTION The laparoscopic surgery of uterine cancer is an oncological safe treatment option in early stage cancer. However, there are no data about whether laparoscopy can lead to intraperitoneal tumor cell dissemination. We aimed in our study to detect a possible cytological conversion during laparoscopic procedures. METHODS In this prospective study, we included all patients receiving laparoscopic treatment at the early stage endometrial and cervical cancer in the Department of Obstetrics and Gynecology at the University of the Saarland and obtained peritoneal wash for cytological examination at the beginning and at the end of laparoscopic surgery. All patients received stage-adjusted operative and adjuvant therapy. RESULTS We enrolled 43 patients [endometrial cancer (n = 24) and cervical cancer (n = 19)]. At the beginning of the operation, one patient with endometrial cancer and one patient with cervical cancer showed a positive cytology. One tumor cell conversion from negative to positive cytology during surgery was detected in a patient suffering from endometrial cancer stage FIGO Ia. The median duration of surgery was 191.8 ± 79.3 min. The average time of follow-up was 16.5 ± 10.3 month. At the end of data evaluation at December 2014, two patients (8.6 %) are suffering from recurrent disease, two patients died, none of these patients had a positive cytology. All patients with positive cytology are free of cancer. CONCLUSION During laparoscopic surgery of early stage endometrial and cervical cancer, only one conversion of cytology was detected, which proves that laparoscopy does not appear to increase the intraoperative tumor cell dissemination or rate of positive cytological results.
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Mavrova R, Radosa JC, Wagenpfeil G, Hamza A, Solomayer EF, Juhasz-Böss I. Learning curves for laparoscopic hysterectomy after implementation of minimally invasive surgery. Int J Gynaecol Obstet 2016; 134:225-30. [DOI: 10.1016/j.ijgo.2016.01.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 01/20/2016] [Accepted: 04/28/2016] [Indexed: 10/21/2022]
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Radosa JC, Radosa CG, Kastl C, Mavrova R, Gabriel L, Gräber S, Wagenpfeil G, Baum S, Hamza A, Joukhadar R, Juhasz-Böss I, Heimes AS, Meyberg-Solomayer G, Solomayer EF, Radosa MP. Influence of the Preoperative Decision-Making Process on the Postoperative Outcome after Hysterectomy for Benign Uterine Pathologies. Geburtshilfe Frauenheilkd 2016; 76:383-389. [PMID: 27134293 DOI: 10.1055/s-0041-110396] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Introduction: The aim of this study was to assess whether the preoperative decision-making process might influence treatment success in premenopausal women undergoing hysterectomy for benign uterine pathologies Materials and Methods: All premenopausal women treated with hysterectomy for benign uterine pathologies between April 2011 and June 2013 at a tertiary university center were enrolled in this prospective observational cohort study. Five parameters of the preoperative decision-making process were assessed upon their correlation with postoperative quality of life, sexual function and patients' satisfaction. These outcome measures were assessed for the pre- and postoperative (six months after surgery) status using two validated questionnaires (EQ-5D and "female sexual function index" (FSFI). Patients' satisfaction with the postoperative outcome was assessed with a self-developed questionnaire. Results: 255 of 402 (63 %) patients completed the study. A correlation between the co-variables "interval between first counseling and decision to surgery", "subjectively perceived quality of the preoperative counseling" and "certainty in the decision for the intervention" and postoperative outcomes were found. The co-variables "person mainly responsible for election of hysterectomy mode" and "discussion of decision for surgery with others" showed no influence on postoperative patients-reported outcomes. Conclusion: We found a correlation between certain parameters of the preoperative decision-making process and postoperative patient-reported sexual function, quality of life and patients' satisfaction in premenopausal women undergoing hysterectomy for benign uterine pathologies. An optimization of these factors could contribute to an improvement in treatment outcomes.
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Hamza A, Meyberg-Solomayer G, Juhasz-Böss I, Joukhadar R, Takacs Z, Solomayer EF, Baum S, Radosa J, Mavrova L, Herr D. Diagnostic Methods of Ectopic Pregnancy and Early Pregnancy Loss: a Review of the Literature. Geburtshilfe Frauenheilkd 2016; 76:377-382. [PMID: 27134292 DOI: 10.1055/s-0041-110204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
This review article presents recent evidence on early pregnancy loss and ectopic pregnancy. In the light of recent evidence, the β-hCG discriminatory zone may be extended in clinically stable cases without evidence of bleeding. A possible cut-off is 4300 mIU/ml, which corresponds to when a sonographer should detect an intrauterine pregnancy. Embryonic demise can be confirmed when a transvaginal ultrasound finding shows no heartbeat in an embryo of more than 7 mm CRL, no embryo in a gestational sac having a mean sac diameter of more than 25 mm, or no appearance of an embryo within 7-10 days after the primary examination. These are considered definitive signs of embryonic demise. Suggestive signs of embryonic demise require closer monitoring of the pregnancy.
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Dewald EL, Tommasini R, Mackinnon A, MacPhee A, Meezan N, Olson R, Hicks D, LePape S, Izumi N, Fournier K, Barrios MA, Ross S, Pak A, Döppner T, Kalantar D, Opachich K, Rygg R, Bradley D, Bell P, Hamza A, Dzenitis B, Landen OL, MacGowan B, LaFortune K, Widmayer C, Van Wonterghem B, Kilkenny J, Edwards MJ, Atherton J, Moses EI. Capsule Ablator Inflight Performance Measurements Via Streaked Radiography Of ICF Implosions On The NIF*. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/688/1/012014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Meyberg-Solomayer G, Hamza A, Takacs Z, Leingartner A, Radosa J, Joukhadar R, Juhasz-Böss I, Solomayer EF. The significance of anterolateral neck cysts in early diagnosis of fetal malformations. Prenat Diagn 2016; 36:332-7. [DOI: 10.1002/pd.4785] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 01/22/2016] [Accepted: 01/30/2016] [Indexed: 11/12/2022]
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Hamza A, Solomayer EF, Takacs Z, Juhasz-Boes I, Joukhadar R, Radosa JC, Mavrova R, Marc W, Volk T, Meyberg-Solomayer G. Introduction of basic obstetrical ultrasound screening in undergraduate medical education. Arch Gynecol Obstet 2016; 294:479-85. [DOI: 10.1007/s00404-015-4002-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 12/17/2015] [Indexed: 10/22/2022]
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Hamza A, Solomayer EF, Takacs Z, Juhasz-Boess I, Joukhadar R, Baum S, Radosa J, Mavrova R, Von Heesen A, Wagenpfeil S, Meyberg-Solomayer G. Einführung eines praktischen standardisierten Ultraschallkurses in der Medizinlehre. Z Geburtshilfe Neonatol 2015. [DOI: 10.1055/s-0035-1566641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Muhammad RW, Qayyum A, Hamza A, Ahmad MQ, Naseer NS, Liaqat S, Ahmad B, Malik W, Noor E. Analysis of genetic traits for drought tolerance in maize. GENETICS AND MOLECULAR RESEARCH 2015; 14:13545-65. [PMID: 26535668 DOI: 10.4238/2015.october.28.15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Fifty-four genotypes of maize were crossed and evaluated in the field during the crop season in February 2012 under both normal and water stress conditions. To identify the major parameters responsible for variation among genotypes, single linkage cluster analysis and principle component analysis (PCA) were carried out. Thirteen characters were studied. The PCA showed that the first six components, with eigen values >1, contributed 82.30% of the variability among the genotypes under normal field irrigation conditions while other PCs (7-13) had eigen values less than 1. Under drought conditions, the first four PCs, with eigen values >1, contributed 64.79% of the variability among genotypes while the other PCs (5-13) had eigen values less than 1. In the absence of water stress, heritability ranged from 68% (sucrose content) to 99% (plant height) and genetic advance ranged between 158.43% for stomatal frequency and 0.87 for biological yield. Under drought conditions, the coefficient of variability (CV) was 1.43-7.79, whereas estimates of heritability ranged between 68% and 99% for sucrose content and leaf area, respectively. The values of genetic advance ranged between 153.41 for stomatal frequency and 0.47 for nitrogen content. CV was 1.52-7.38 under drought conditions. The results indicated that the plant characters studied were under the control of additive genetic effects and suggested that selection should lead to fast genetic improvements. Clusters with superior agronomic types were identified and could be exploited for the transfer of desirable genes to improve the yield potential of the maize crop.
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Baum S, Meyberg-Solomayer G, Baum A, Radosa J, Hamza A, Gronwald B, Friedrich M, Solomayer EF, Joukhadar R. Deciding Factors for the Referral of a Female Patient to a Specific Hospital from the Viewpoint of Practice-Based Specialists. Geburtshilfe Frauenheilkd 2015; 75:456-461. [PMID: 26097249 DOI: 10.1055/s-0035-1546035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 03/17/2015] [Accepted: 04/06/2015] [Indexed: 10/23/2022] Open
Abstract
Background: One of the key points of patient care is the cooperation between practice-based specialists and clinical facilities. The present study was undertaken in order to illustrate the deciding factors, from the viewpoint of practice-based specialists, for the referral of a female patient to a specific hospital. Methods: Altogether a total of 322 practice-based specialists from various disciplines were contacted in writing and sent a questionnaire. In this survey the recipients were questioned about the criteria, in order of importance, applied for the referral of a (female) patient to a specific clinical facility. Results: In the foreground for the referral of a patient to a specific hospital are the aspects of medical quality and competence. On a closer look we find the surgical spectrum, especially the availability of endoscopic and special operations as a main factor. Further factors are a low rate of complications and the availability of modern diagnostic methods. Also evaluated as an important aspect was the easy reachability of a competent consultant. Factors of lower relevance for referral behaviour were personal familiarity with the colleagues employed in the hospital, specific further training events and the course of previous cooperation. Conclusions: A modern diagnostic and therapeutic spectrum coupled with an easy reachability of competent contact partners are the main factors for cooperation from the viewpoint of the practice-based specialist. Of lowest relevance, among others, was the aspect of previous cooperation. Thus, it can be seen that by means of changes in cooperation an improvement in patient care can be achieved at any time.
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Berzak Hopkins LF, Meezan NB, Le Pape S, Divol L, Mackinnon AJ, Ho DD, Hohenberger M, Jones OS, Kyrala G, Milovich JL, Pak A, Ralph JE, Ross JS, Benedetti LR, Biener J, Bionta R, Bond E, Bradley D, Caggiano J, Callahan D, Cerjan C, Church J, Clark D, Döppner T, Dylla-Spears R, Eckart M, Edgell D, Field J, Fittinghoff DN, Gatu Johnson M, Grim G, Guler N, Haan S, Hamza A, Hartouni EP, Hatarik R, Herrmann HW, Hinkel D, Hoover D, Huang H, Izumi N, Khan S, Kozioziemski B, Kroll J, Ma T, MacPhee A, McNaney J, Merrill F, Moody J, Nikroo A, Patel P, Robey HF, Rygg JR, Sater J, Sayre D, Schneider M, Sepke S, Stadermann M, Stoeffl W, Thomas C, Town RPJ, Volegov PL, Wild C, Wilde C, Woerner E, Yeamans C, Yoxall B, Kilkenny J, Landen OL, Hsing W, Edwards MJ. First high-convergence cryogenic implosion in a near-vacuum hohlraum. PHYSICAL REVIEW LETTERS 2015; 114:175001. [PMID: 25978240 DOI: 10.1103/physrevlett.114.175001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Indexed: 06/04/2023]
Abstract
Recent experiments on the National Ignition Facility [M. J. Edwards et al., Phys. Plasmas 20, 070501 (2013)] demonstrate that utilizing a near-vacuum hohlraum (low pressure gas-filled) is a viable option for high convergence cryogenic deuterium-tritium (DT) layered capsule implosions. This is made possible by using a dense ablator (high-density carbon), which shortens the drive duration needed to achieve high convergence: a measured 40% higher hohlraum efficiency than typical gas-filled hohlraums, which requires less laser energy going into the hohlraum, and an observed better symmetry control than anticipated by standard hydrodynamics simulations. The first series of near-vacuum hohlraum experiments culminated in a 6.8 ns, 1.2 MJ laser pulse driving a 2-shock, high adiabat (α∼3.5) cryogenic DT layered high density carbon capsule. This resulted in one of the best performances so far on the NIF relative to laser energy, with a measured primary neutron yield of 1.8×10(15) neutrons, with 20% calculated alpha heating at convergence ∼27×.
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Hamza A, Abd El-Kafie O, Sidky M, Al-Batrawi W. STUDING THE ADVERSE IMPACT OF SALINITY ON CANOLA VEGETATIVE GROWTH, SEEDS YIELD AND OIL PRODUCTION. JOURNAL OF PLANT PRODUCTION 2015; 6:493-503. [DOI: 10.21608/jpp.2015.49567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Ross JS, Ho D, Milovich J, Döppner T, McNaney J, MacPhee AG, Hamza A, Biener J, Robey HF, Dewald EL, Tommasini R, Divol L, Le Pape S, Berzak Hopkins L, Celliers PM, Landen O, Meezan NB, Mackinnon AJ. High-density carbon capsule experiments on the national ignition facility. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2015; 91:021101. [PMID: 25768451 DOI: 10.1103/physreve.91.021101] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Indexed: 06/04/2023]
Abstract
Indirect-drive implosions with a high-density carbon (HDC) capsule were conducted on the National Ignition Facility (NIF) to test HDC properties as an ablator material for inertial confinement fusion. A series of five experiments were completed with 76-μm-thick HDC capsules using a four-shock laser pulse optimized for HDC. The pulse delivered a total energy of 1.3 MJ with a peak power of 360 TW. The experiment demonstrated good laser to target coupling (∼90%) and excellent nuclear performance. A deuterium and tritium gas-filled HDC capsule implosion produced a neutron yield of 1.6×10^{15}±3×10(13), a yield over simulated in one dimension of 70%.
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Fadiel A, Song J, Tivon D, Hamza A, Cardozo T, Naftolin F. Phenytoin is an estrogen receptor α-selective modulator that interacts with helix 12. Reprod Sci 2014; 22:146-55. [PMID: 25258361 DOI: 10.1177/1933719114549853] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
RATIONALE Phenytoin (Dilantin(®); DPH) is used to treat epilepsy but causes estrogen agonist-antagonist-like side effects. We investigated the interaction of phenytoin with estrogen receptors (ERs) α and β by computational molecular docking, ER competition binding, transcriptional assays, and biological actions, comparing outcomes with estradiol (E2), estrone (E1), and tamoxifen (TMX). EXPERIMENTAL (1) The DPH docking to 3-dimensional crystal structures of the ERα ligand-binding domain (LBD) showed a high degree of structural complementarity (-57.15 calculated energy units, approximating kcal/mol) with the ligand-binding pocket, including a contact at leucine (L540) in helix 12. Estrogen receptor β showed slightly less favorable interactions (-54.27 kcal/mol), without contacting L450. Estradiol, E1, and TMX contact points with ERα and ERβ do not include L450. (2) Cellular actions: Incubation of cells transfected with ERα or ERβ and a luciferase promoter phenytoin was several orders weaker than E2 as an agonist through ERα and had no effect through ERβ. However, phenytoin at clinical concentrations (10(-11) to 10(-6) mol/L) powerfully antagonized action of E2 on ERα-expressing cells. Similarly, phenytoin at clinically effective concentrations marginally induced alkaline phosphatase by ERα- and ERβ-expressing endometrial cancer cells but at doses well below clinical effectiveness blocked E2-induced alkaline phosphatase. (3) ER competition: In Scatchard plots comparing phenytoin with 17β-estradiol against endometrial cancer cell cytosol E2-alone more effectively displaced labeled E2 than phenytoin, but phenytoin was approximately equimolar effective to E2 in inhibiting E2's displacement of the radiolabel, further confirming that phenytoin is a strong E2 antagonist. CONCLUSIONS At clinically effective concentrations, phenytoin is a strong ERα cell antagonist but a many-fold weaker agonist. Although it interacts with ERβ LBD residues, phenytoin has no effects on ERβ-only expressing cells. Docking studies indicate phenytoin interacts with the ERα LBD at the hinge of helix 12 and could thereby interfere with the entry of other ER ligands or with the mobility of helix 12, either of which actions could explain phenytoin's antagonism of ER-mediated E2 actions. Our results suggest an explanation for the broad profile of phenytoin's actions and raise possibilities for the use of phenytoin or congeners in the clinical management of ERα-dependent conditions.
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Radosa J, Radosa MP, Kastl C, Baum S, Joukhadar R, Hamza A, Juhasz-Böss I, Solomayer EF. Influence of laparoscopic myomectomy on patients' postoperative sexual function and quality of life. Geburtshilfe Frauenheilkd 2014. [DOI: 10.1055/s-0034-1388289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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130
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Hamza A, Takacs Z, Solomayer EF, Meyberg-Solomayer G. Fetal Arrhythmia: Perinatal outcome. Geburtshilfe Frauenheilkd 2014. [DOI: 10.1055/s-0034-1388128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Baum S, Radosa J, Hamza A, Friedrich M, Solomayer E, Joukhadar R. Zeigen HER2+ Mammakarzinome ein anderes Metastasierungsmuster im Vergleich zu HER2- Karzinomen? Geburtshilfe Frauenheilkd 2014. [DOI: 10.1055/s-0034-1388420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Radosa JC, Nau J, Russalina M, Joukhadar R, Hamza A, Juhasz-Böss I, Baum S, Solomayer EF. Influence of loop conization on patients' postoperative sexual function and quality of life. Geburtshilfe Frauenheilkd 2014. [DOI: 10.1055/s-0034-1388569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Tietze S, Herms M, Behrendt W, Krause J, Hamza A. [Controversies of partial nephrectomy for renal cell carcinoma : survey in the German-speaking countries]. Urologe A 2014; 53:1181-5. [PMID: 24824467 DOI: 10.1007/s00120-014-3469-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND The goal of this study was to evaluate how partial nephrectomy is technically performed in Germany, Austria, and Switzerland. METHODS A one-page anonymous questionnaire was designed to evaluate the indication, the technical procedure, and the follow-up of R1 situation after partial nephrectomy. Furthermore, the size of the hospitals and their catchment areas were recorded. The questionnaire was sent to 341 clinics and a statistical analysis was performed. RESULTS The response rate was 69 %. Up to 99 % of the clinics also perform partial resection in T1b tumors. Of those responding, 58 % perform this surgery laparoscopically, and 83 % of the surgeries are performed in warm ischemia. For the follow-up, 29 % suggest imaging within the first 6 weeks. According to this survey, maximum care clinics perform laparoscopic nephrectomy more frequently (p = 0.003). CONCLUSION The survey of 236 hospitals performing partial nephrectomy shows great variability in the indication, technique, and aftercare of organ-preserving renal tumor surgery. It also shows that a large proportion of tumors >4 cm undergo organ-preserving surgery, many of them minimally invasive. The diverse handling with positive instantaneous section and R1 results suggest the need for further studies concerning long-term follow-up after minimally invasive surgery with R1 situation and renal tumors > T1a.
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Smalyuk VA, Casey DT, Clark DS, Edwards MJ, Haan SW, Hamza A, Hoover DE, Hsing WW, Hurricane O, Kilkenny JD, Kroll J, Landen OL, Moore A, Nikroo A, Peterson L, Raman K, Remington BA, Robey HF, Weber SV, Widmann K. First measurements of hydrodynamic instability growth in indirectly driven implosions at ignition-relevant conditions on the National Ignition Facility. PHYSICAL REVIEW LETTERS 2014; 112:185003. [PMID: 24856703 DOI: 10.1103/physrevlett.112.185003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Indexed: 06/03/2023]
Abstract
Ignition experiments have shown an anomalous susceptibility to hydrodynamic instability growth. To help understand these results, the first hydrodynamic instability growth measurements in indirectly driven implosions on the National Ignition Facility were performed at ignition conditions with peak radiation temperatures up to ∼300 eV. Plastic capsules with two-dimensional preimposed, sinusoidal outer surface modulations of initial wavelengths of 240 (corresponding to a Legendre mode number of 30), 120 (mode 60), and 80 μm (mode 90) were imploded by using actual low-adiabat ignition laser pulses. The measured growth was in excellent agreement, validating 2D hydra simulations for the most dangerous modes in the acceleration phase. These results reinforce confidence in the predictive capability of calculations that are paramount to illuminating the path toward ignition.
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Shehu U, Nguku P, Hamza A. Outbreak investigation report of measles among children under five years in Katsina State, Northern Nigeria, January 2013. Int J Infect Dis 2014. [DOI: 10.1016/j.ijid.2014.03.487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Elsawy G, Abdelrahman O, Hamza A. Effect of choline supplementation on rapid weight loss and biochemical variables among female taekwondo and judo athletes. J Hum Kinet 2014; 40:77-82. [PMID: 25031675 PMCID: PMC4096089 DOI: 10.2478/hukin-2014-0009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Taekwondo and judo competitions are divided into weight categories. Many athletes reduce their body mass a few days before competition in order to obtain a competitive advantage over lighter opponents. To achieve fast body mass reduction, athletes use a number of nutritional strategies, including choline supplementation. The goal of this study was to identify the effects of choline supplementation on body mass reduction and leptin levels among female taekwondo and judo athletes. Twenty-two female athletes (15 taekwondo and 7 judo athletes) were selected from different weight categories and divided into two groups, according to weight. The players in the experimental group took choline tablets for one week before a competition. The results revealed significant differences between pre- and post-competition measurements of leptin, free plasma choline, urine choline and urine malondialdehyde levels; body mass was also reduced in the post-competition measurements. In conclusion, choline supplementation could rapidly reduce body mass without any side effects on biochemical levels or static strength.
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Smalyuk VA, Tipton RE, Pino JE, Casey DT, Grim GP, Remington BA, Rowley DP, Weber SV, Barrios M, Benedetti LR, Bleuel DL, Bradley DK, Caggiano JA, Callahan DA, Cerjan CJ, Clark DS, Edgell DH, Edwards MJ, Frenje JA, Gatu-Johnson M, Glebov VY, Glenn S, Haan SW, Hamza A, Hatarik R, Hsing WW, Izumi N, Khan S, Kilkenny JD, Kline J, Knauer J, Landen OL, Ma T, McNaney JM, Mintz M, Moore A, Nikroo A, Pak A, Parham T, Petrasso R, Sayre DB, Schneider MB, Tommasini R, Town RP, Widmann K, Wilson DC, Yeamans CB. Measurements of an ablator-gas atomic mix in indirectly driven implosions at the National Ignition Facility. PHYSICAL REVIEW LETTERS 2014; 112:025002. [PMID: 24484021 DOI: 10.1103/physrevlett.112.025002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2013] [Indexed: 06/03/2023]
Abstract
We present the first results from an experimental campaign to measure the atomic ablator-gas mix in the deceleration phase of gas-filled capsule implosions on the National Ignition Facility. Plastic capsules containing CD layers were filled with tritium gas; as the reactants are initially separated, DT fusion yield provides a direct measure of the atomic mix of ablator into the hot spot gas. Capsules were imploded with x rays generated in hohlraums with peak radiation temperatures of ∼294 eV. While the TT fusion reaction probes conditions in the central part (core) of the implosion hot spot, the DT reaction probes a mixed region on the outer part of the hot spot near the ablator-hot-spot interface. Experimental data were used to develop and validate the atomic-mix model used in two-dimensional simulations.
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Hamza A, Abd El-Kafie O, Al-Batrawi W. STUDING THE ADVERSE IMPACT OF SALINITY ON CANOLA VEGETATIVE GROWTH, SEEDS YIELD AND OIL PRODUCTION. JOURNAL OF PLANT PRODUCTION 2014; 5:69-78. [DOI: 10.21608/jpp.2014.53481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Hamza A, Herr D, Solomayer EF, Meyberg-Solomayer G. Polyhydramnios: Causes, Diagnosis and Therapy. Geburtshilfe Frauenheilkd 2013; 73:1241-1246. [PMID: 24771905 DOI: 10.1055/s-0033-1360163] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 11/12/2013] [Accepted: 11/12/2013] [Indexed: 01/08/2023] Open
Abstract
Polyhydramnios is defined as a pathological increase of amniotic fluid volume in pregnancy and is associated with increased perinatal morbidity and mortality. Common causes of polyhydramnios include gestational diabetes, fetal anomalies with disturbed fetal swallowing of amniotic fluid, fetal infections and other, rarer causes. The diagnosis is obtained by ultrasound. The prognosis of polyhydramnios depends on its cause and severity. Typical symptoms of polyhydramnios include maternal dyspnea, preterm labor, premature rupture of membranes (PPROM), abnormal fetal presentation, cord prolapse and postpartum hemorrhage. Due to its common etiology with gestational diabetes, polyhydramnios is often associated with fetal macrosomia. To prevent the above complications, there are two methods of prenatal treatment: amnioreduction and pharmacological treatment with non-steroidal anti-inflammatory drugs (NSAIDs). However, prenatal administration of NSAIDs to reduce amniotic fluid volumes has not been approved in Germany. In addition to conventional management, experimental therapies which would alter fetal diuresis are being considered.
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Dewald EL, Milovich JL, Michel P, Landen OL, Kline JL, Glenn S, Jones O, Kalantar DH, Pak A, Robey HF, Kyrala GA, Divol L, Benedetti LR, Holder J, Widmann K, Moore A, Schneider MB, Döppner T, Tommasini R, Bradley DK, Bell P, Ehrlich B, Thomas CA, Shaw M, Widmayer C, Callahan DA, Meezan NB, Town RPJ, Hamza A, Dzenitis B, Nikroo A, Moreno K, Van Wonterghem B, Mackinnon AJ, Glenzer SH, MacGowan BJ, Kilkenny JD, Edwards MJ, Atherton LJ, Moses EI. Early-time symmetry tuning in the presence of cross-beam energy transfer in ICF experiments on the National Ignition Facility. PHYSICAL REVIEW LETTERS 2013; 111:235001. [PMID: 24476279 DOI: 10.1103/physrevlett.111.235001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Indexed: 06/03/2023]
Abstract
On the National Ignition Facility, the hohlraum-driven implosion symmetry is tuned using cross-beam energy transfer (CBET) during peak power, which is controlled by applying a wavelength separation between cones of laser beams. In this Letter, we present early-time measurements of the instantaneous soft x-ray drive at the capsule using reemission spheres, which show that this wavelength separation also leads to significant CBET during the first shock, even though the laser intensities are 30× smaller than during the peak. We demonstrate that the resulting early drive P2/P0 asymmetry can be minimized and tuned to <1% accuracy (well within the ±7.5% requirement for ignition) by varying the relative input powers between different cones of beams. These experiments also provide time-resolved measurements of CBET during the first 2 ns of the laser drive, which are in good agreement with radiation-hydrodynamics calculations including a linear CBET model.
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Landen O, Edwards J, Haan S, Lindl J, Boehly T, Bradley D, Callahan D, Celliers P, Dewald E, Dixit S, Doeppner T, Eggert J, Farley D, Frenje J, Glenn S, Glenzer S, Hamza A, Hammel B, Haynam C, LaFortune K, Hicks D, Hoffman N, Izumi N, Jones O, Kilkenny J, Kline J, Kyrala G, Mackinnon A, Milovich J, Moody J, Meezan N, Michel P, Munro D, Olson R, Ralph J, Robey H, Nikroo A, Regan S, Spears B, Suter L, Thomas C, Town R, Wilson D, MacGowan B, Atherton L, Moses E. Ignition tuning for the National Ignition Campaign. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20135901003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hamza A, Abd El-Kafie O, Helaly A, EL-Mongy M. IN VITRO PROPAGATION METHODES OF SNAPDRAGON (Antirrhinum majus.L) PLANT. JOURNAL OF PLANT PRODUCTION 2013; 4:1621-1637. [DOI: 10.21608/jpp.2013.74484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Hamza A, Abd El-Kafie O, Nour El-Deen A, Abd El-Baset M. IMPROVING CARNATION RESISTANCE TO ROOT-KNOT NEMATODE INFECTION UNDER GREENHOUSE CONDITIONS. JOURNAL OF PLANT PRODUCTION 2013; 4:1159-1168. [DOI: 10.21608/jpp.2013.73766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Regan SP, Epstein R, Hammel BA, Suter LJ, Scott HA, Barrios MA, Bradley DK, Callahan DA, Cerjan C, Collins GW, Dixit SN, Döppner T, Edwards MJ, Farley DR, Fournier KB, Glenn S, Glenzer SH, Golovkin IE, Haan SW, Hamza A, Hicks DG, Izumi N, Jones OS, Kilkenny JD, Kline JL, Kyrala GA, Landen OL, Ma T, MacFarlane JJ, MacKinnon AJ, Mancini RC, McCrory RL, Meezan NB, Meyerhofer DD, Nikroo A, Park HS, Ralph J, Remington BA, Sangster TC, Smalyuk VA, Springer PT, Town RPJ. Hot-spot mix in ignition-scale inertial confinement fusion targets. PHYSICAL REVIEW LETTERS 2013; 111:045001. [PMID: 23931375 DOI: 10.1103/physrevlett.111.045001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Revised: 04/04/2013] [Indexed: 06/02/2023]
Abstract
Mixing of plastic ablator material, doped with Cu and Ge dopants, deep into the hot spot of ignition-scale inertial confinement fusion implosions by hydrodynamic instabilities is diagnosed with x-ray spectroscopy on the National Ignition Facility. The amount of hot-spot mix mass is determined from the absolute brightness of the emergent Cu and Ge K-shell emission. The Cu and Ge dopants placed at different radial locations in the plastic ablator show the ablation-front hydrodynamic instability is primarily responsible for hot-spot mix. Low neutron yields and hot-spot mix mass between 34(-13,+50) ng and 4000(-2970,+17 160) ng are observed.
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Hamza A, Takacs Z, Mayer A, Solomayer EF, Meyberg-Solomayer G. Fallbericht über eine Gravidität mit flächenhaften plazentaren Basalplatteninfarkt. Geburtshilfe Frauenheilkd 2013. [DOI: 10.1055/s-0033-1347757] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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El Minshawy O, Ghabrah T, Hamza A, Fadl A, Adam M, El Bassuoni E, Saran R, Tilea A, Sands R, Kiser M, Han SW, Stack A, Finkelstein F, Eisele G, Kotanko P, Levin N, Gillespie B, Krane V, Bhuvanakrishna T, Burnapp L, Hilton R, Sibley-Allen C, Blake G, Goldsmith D, Taylor-Stokes G, Ozbay AB, Sayers J, Marx SE, Yanai M, Okada K, Takeuchi K, Matsuyama K, Nitta K, Takahashi S, Delanaye P, Cavalier E, Moranne O, Lutteri L, Bruyere O, Krzesinski JM, Silverwood RJ, Richards M, Pierce M, Hardy R, Sattar N, Ferro C, Savage C, Kuh D, Nitsch D, Shin JH, Kim SH, Yu SH, Oberdhan D, Krasa HB, Cheng R, Hays RD, Chapman A, Perrone R, Cole JC, Tilea A, Hedgeman E, Steffick D, Rein-Weston A, Banerjee T, Powe N, Rios-Burrows N, Williams D, Saran R, Nagasawa Y, Yamamoto R, Shinzawa M, Hasuike Y, Kuragano T, Rakugi H, Isaka Y, Nakanishi T, Iseki K, Yamagata K, Tsuruya K, Yoshida H, Fujimoto S, Asahi K, Watanabe T, Moriyama T, Warren S, Rutherford P, Van Den Bosch J, Kusztal M, Trafidlo E, Madziarska K, Augustyniak-Bartosik H, Golebiowski T, Krajewska M, Rymaszewska J, Weyde W, Klinger M, Sato Y, Fujimoto S, Konta T, Iseki K, Moriyama T, Yamagata K, Tsuruya K, Yoshida H, Asahi K, Kurahashi I, Ohashi Y, Watanabe T, Elsayed I, Khwaja A, Siddall S, Mortimer F, Ando M, Hara M, Tsuchiya K, Nitta K, Hiwatashi A, Hagiwara M, Tsuruoka S, Usui J, Nagai K, Kai H, Morito N, Saito C, Yoh K, Hosojima M, Saito A, Yamagata K, Stack AG, Chernenko T, Abdalla AA, Saran R, Nguyen HT, Hedgeman E, Hannigan A, Casserly LF, Abd ElHafeez S, Gad Z, Sallam S, Tripepi G, Zoccali C, ElWakil H, Awad N, Sestigiani E, Tedesco D, Mandreoli M, Ubaldi G, Olmeda F, Monti M, Rucci P, Gibertoni D, Santoro A, Zaza G, Bernich P, Lupo A, Rogacev KS, Seiler S, Zawada AM, Fliser D, Heine GH, Douros A, Schaeffner E, Jakob O, Kreutz R, Ebert N, Gerasimovska Kitanovska B, Bogdanovska S, Severova Andreevska G, Gerasimovska V, Sikole A, Rakov V, Schiepe F, Rutkowski B, Zdrojewski T, Bandosz P, Zdrojewski L, Rutkowski M, Gaciong Z, Solnica B, Jedrzejczyk T, Krol E, Wyrzykowski B, Nacak H, van Diepen M, de Goeij MCM, Dekker FW, Suzuki K, Konta T, Kamei K, Sato H, Kudo K, Nagasawa A, Ichikawa K, Kubota I, Clavero R, Vasquez N, Tapia B, Aldunate T, Heleniak Z, Cieplinska M, Pryczkowska M, Szychlinski T, Bartosinska E, Wiatr H, Kotlowska H, Tylicki L, Rutkowski B, So B, Methven S, Hair MD, Jardine AG, MacGregor MS, Jankowski V, Schulz A, Zidek W, Jankowski J, Holmar J, Fridolin I, Uhlin F, Luman M, Fernstrom A, Rodriguez I, Ortega O, Hinostroza J, Cobo G, Gallar P, Mon C, Herrero JC, Ortiz M, Di Giogia C, Oliet A, Vigil A, Premuzic V, Vrdoljak A, Fucek M, Karanovic S, Vukovic-Lela I, Kos J, Fistrek M, Dika Z, Cvitkovic A, Juric D, Laganovic M, Rogic D, Katalinic L, Jelakovic B, Vrdoljak A, Fucek M, Premuzic V, Karanovic S, Vukovic Lela I, Kos J, Fistrek M, Cvitkovic A, Jelakovic B, Deger SM, Onec K, Derici UB, Guz G, Ozturk MA, Sindel S, Arinsoy T, Hojs N, Bevc S, Hojs R, Ekart R, Koycheva R, Cholakov V, Penev M, Andreev J, Iliev R, Macia M, Jarque A, del Castillo N, Mendez ML, Martin JA, Tevar E, Bermudez C, NasrAllah MM, Osman N, Osanlou O, Greer AB, Morgan H, Archer T, Ryan N, Khalil A, Ahmed S, Melemadathil S, Ashok AV, El-Wakil HS, Asaad SH, Nawar MM, Adam AG, Abdel-Gawad MM. Epidemiology - renal outcomes. Nephrol Dial Transplant 2013; 28:i140-i154. [DOI: 10.1093/ndt/gft109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
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El-Shahawi M, Hamza A, Al-Sibaai A, Bashammakh A, Al-Saidi H. A new method for analysis of sunset yellow in food samples based on cloud point extraction prior to spectrophotometric determination. J IND ENG CHEM 2013. [DOI: 10.1016/j.jiec.2012.09.008] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Fadiel A, Epperson B, Shaw MI, Hamza A, Petito J, Naftolin F. Bioinformatic analysis of benzo-α-pyrene-induced damage to the human placental insulin-like growth factor-1 gene. Reprod Sci 2013; 20:917-28. [PMID: 23344457 DOI: 10.1177/1933719112468946] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Intrauterine growth restriction (IUGR) has been associated with exposure to polyaromatic hydrocarbons (PAHs) which are released in the combustion of oil, fuel, gas, garbage, and tobacco. Pregnant women exposed to PAHs are at risk of the effects of these environmental toxins; for example, benzo-α-pyrene (BαP) is able to enter the blood stream and could contribute to IUGR or other developmental abnormalities via effects on the placental cells. Since IUGR has been associated with decreased cord blood concentrations of immunoreactive insulin-like growth factor 1 (ir-IGF-1) and IUGR has been associated with disordered development and fetal programming, we tested the effects of BαP on human placental trophoblast cells in culture. EXPERIMENTAL IGF-1 expression and activation was studied using an immortalized human placental trophoblast cell line (HTR-8). The cells were treated with vehicle control or 1 µmol/L BαP, or 5 µmol/L BαP for 12 hours. RNA was extracted and the exons of IGF-1 were amplified using reverse transcriptase-polymerase chain reaction (RT-PCR). The ir-IGF-1 expression levels were compared using gel electrophoresis. The PCR products were sequenced, and levels of mutation were measured with comparative sequence analysis. A computational protein analysis (computer simulation) was performed in order to assess the potential impact of BαP-associated mutation on IGF-1 protein function. RESULTS The IGF-1 expression decreased considerably in BαP-treated cells relative to untreated controls (P < .05), also in a dose-dependent manner. Comparative sequence analysis indicated that the level of BαP exposure correlated with the percentage of base pair mutations in IGF-1 nucleotide sequences for both treatment groups (P < .05). Shifts were observed in the open reading frame, indicating a possible change in the IGF-1 start codon. Protein folding simulation analysis indicated that the base pair changes induced by BαP weakened IGF-1-IGF binding protein (IGFBP) interaction. CONCLUSIONS In concordance with the previous findings, exposure of human placental trophoblast cells to BαP exposure results in reduction of IGF-1 expression and base pair mutations. The direct action of BαP on the placenta indicates that it may not be necessary for BαP to access other maternal tissues in order for gene abnormalities to occur. Given that PAHs are known to work through aryl hydrocarbon hydrolase (AHH), these results are likely due to the presence of AHH in HTR cells. Computational modeling of BαP actions on IGF1, substrate-ligand binding, supports the biological premise of this work and underlines the need to determine actual biological effects rather than equating immune to bioactivity of IGF1.
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Arfaoui A, Kourda N, Hamza A, Aloui R, Rammeh S, Fareh F, Zidi Y, Znaidi N, Zermeni R. Intérêt de l’analyse du profil d’expression de MUC2 et de MSH2 dans l’étude du statut d’instabilité microsatellitaire des adénocarcinomes colorectaux. Ann Pathol 2012. [DOI: 10.1016/j.annpat.2012.09.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Mackinnon AJ, Kline JL, Dixit SN, Glenzer SH, Edwards MJ, Callahan DA, Meezan NB, Haan SW, Kilkenny JD, Döppner T, Farley DR, Moody JD, Ralph JE, MacGowan BJ, Landen OL, Robey HF, Boehly TR, Celliers PM, Eggert JH, Krauter K, Frieders G, Ross GF, Hicks DG, Olson RE, Weber SV, Spears BK, Salmonsen JD, Michel P, Divol L, Hammel B, Thomas CA, Clark DS, Jones OS, Springer PT, Cerjan CJ, Collins GW, Glebov VY, Knauer JP, Sangster C, Stoeckl C, McKenty P, McNaney JM, Leeper RJ, Ruiz CL, Cooper GW, Nelson AG, Chandler GGA, Hahn KD, Moran MJ, Schneider MB, Palmer NE, Bionta RM, Hartouni EP, LePape S, Patel PK, Izumi N, Tommasini R, Bond EJ, Caggiano JA, Hatarik R, Grim GP, Merrill FE, Fittinghoff DN, Guler N, Drury O, Wilson DC, Herrmann HW, Stoeffl W, Casey DT, Johnson MG, Frenje JA, Petrasso RD, Zylestra A, Rinderknecht H, Kalantar DH, Dzenitis JM, Di Nicola P, Eder DC, Courdin WH, Gururangan G, Burkhart SC, Friedrich S, Blueuel DL, Bernstein LA, Eckart MJ, Munro DH, Hatchett SP, Macphee AG, Edgell DH, Bradley DK, Bell PM, Glenn SM, Simanovskaia N, Barrios MA, Benedetti R, Kyrala GA, Town RPJ, Dewald EL, Milovich JL, Widmann K, Moore AS, LaCaille G, Regan SP, Suter LJ, Felker B, Ashabranner RC, Jackson MC, Prasad R, Richardson MJ, Kohut TR, Datte PS, Krauter GW, Klingman JJ, Burr RF, Land TA, Hermann MR, Latray DA, Saunders RL, Weaver S, Cohen SJ, Berzins L, Brass SG, Palma ES, Lowe-Webb RR, McHalle GN, Arnold PA, Lagin LJ, Marshall CD, Brunton GK, Mathisen DG, Wood RD, Cox JR, Ehrlich RB, Knittel KM, Bowers MW, Zacharias RA, Young BK, Holder JP, Kimbrough JR, Ma T, La Fortune KN, Widmayer CC, Shaw MJ, Erbert GV, Jancaitis KS, DiNicola JM, Orth C, Heestand G, Kirkwood R, Haynam C, Wegner PJ, Whitman PK, Hamza A, Dzenitis EG, Wallace RJ, Bhandarkar SD, Parham TG, Dylla-Spears R, Mapoles ER, Kozioziemski BJ, Sater JD, Walters CF, Haid BJ, Fair J, Nikroo A, Giraldez E, Moreno K, Vanwonterghem B, Kauffman RL, Batha S, Larson DW, Fortner RJ, Schneider DH, Lindl JD, Patterson RW, Atherton LJ, Moses EI. Assembly of high-areal-density deuterium-tritium fuel from indirectly driven cryogenic implosions. PHYSICAL REVIEW LETTERS 2012; 108:215005. [PMID: 23003274 DOI: 10.1103/physrevlett.108.215005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2011] [Indexed: 06/01/2023]
Abstract
The National Ignition Facility has been used to compress deuterium-tritium to an average areal density of ~1.0±0.1 g cm(-2), which is 67% of the ignition requirement. These conditions were obtained using 192 laser beams with total energy of 1-1.6 MJ and peak power up to 420 TW to create a hohlraum drive with a shaped power profile, peaking at a soft x-ray radiation temperature of 275-300 eV. This pulse delivered a series of shocks that compressed a capsule containing cryogenic deuterium-tritium to a radius of 25-35 μm. Neutron images of the implosion were used to estimate a fuel density of 500-800 g cm(-3).
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