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A new approach to solar flare prediction

Frontiers of physics 2020年第3期15卷 123-149,F0004页

作者： michael l.goodman Chiman Kwan Bulent Ayhan Eric l.Shang Jacobs Space Exploration Group Natural Environments Branch-EV44NASA Marshall Space Flight CenterHuntsvilleAL35812USA Applied Research llC 9605 Medical Center Drive-Suite 127 ERockvilleMD20850USA

All three components of the current density are required to compute the heating rate due to free magnetic energy *** we present a first test of a new model developed to determine if the times of increases in the resistive heating rate in active region(AR)photospheres are correlated with the subsequent occurrence of M and X flares in the corona.A data driven,3D,non-force-free magnetohydrodynamic model restricted to the near-photospheric region is used to compute time series of the complete current density and the resistive heating rate per unit volume[Q(t)]in each pixel in neutral line regions(NlRs)of 14 *** model is driven by time series of the magnetic field B measured by the Helioseismic&Magnetic Imager on the Solar Dynamics Observatory(SDO)*** Doppler periods due to SDO orbital motion are filtered out of the time series for B in every AR *** each AR,the cumulative distribution function(CDF)of the values of the NlR area integral Qi(t)of Q(t)is found to be a scale invariant power law distribution essentially identical to the observed CDF for the total energy released in coronal *** suggests that coronal flares and the photospheric Qi are correlated,and powered by the same *** model predicts spikes in Qi with values orders of magnitude above background *** spikes are driven by spikes in the non-force free component of the current *** times of these spikes are plausibly correlated with times of subsequent M or X flares a few hours to a few days *** spikes occur on granulation scales,and may be signatures of heating in horizontal current *** is also found that the times of relatively large values of the rate of change of the NlR unsigned magnetic flux are also plausibly correlated with the times of subsequent M and X flares,and spikes in Qi.

关键词： active regions magnetic fields flares forecasting heating photosphere models magnetohydrodynamics

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角质的免疫组织化学定位在头颈肿瘤病理论断中的应用

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四川大学学报(医学版) 1986年第2期17卷 144-147页

作者：石善溶,Max l.goodman,Atul K.Bhan,Ben Z.Pilch 华西医科大学附属一医院耳鼻喉科学教研室美国马萨诸塞眼耳鼻喉医院耳鼻喉病理室美国马萨诸塞总医院病理科美国马萨诸塞眼耳鼻喉医院耳鼻喉病理室

本研究报告100例头颈正常及肿瘤组织石蜡切片的角质抗体定位。结果表明上呼吸、消化道之被覆上皮、涎腺导管、耵聍腺及中耳上皮、毛囊及汗腺等上皮组织均阳性,而间叶组织则为阴性。鳞癌、基底细胞癌等上皮源性肿瘤均为阳性。再次肯定了... 详细信息

本研究报告100例头颈正常及肿瘤组织石蜡切片的角质抗体定位。结果表明上呼吸、消化道之被覆上皮、涎腺导管、耵聍腺及中耳上皮、毛囊及汗腺等上皮组织均阳性,而间叶组织则为阴性。鳞癌、基底细胞癌等上皮源性肿瘤均为阳性。再次肯定了角质抗体定位的诊断价值。

关键词：抗角质抗体免疫组织化学角质抗体定位上呼吸、消化道

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Comparison of dietary intakes of Canadian Armed Forces personnel consuming field rations in acute hot, cold, and temperate conditions with standardized infantry

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Military Medical Research 2020年第1期7卷 77-92页

作者： Mavra Ahmed Iva Mandic Wendy lou len goodman Ira Jacobs Mary R.l’Abbé Department of Nutritional Sciences Faculty of MedicineUniversity of TorontoMedical Science Building1 King's College CircleRoom 5368TorontoOntario M5S 1A8Canada Faculty of Kinesiology and Physical Education University of TorontoToronto M5S 2W6Canada Dalla lana School of Public Health University of TorontoToronto M5T 3M2Canada Defence Research and Development Canada-Toronto Research Centre Toronto M3K 2C9Canada

Background:Dietary Reference Intakes are used to guide the energy intake of the Canadian Armed Forces(CAF)field rations provided to military personnel deployed for training or ***,the high energy expenditures likely to occur under harsh environmental/metabolically challenging deployment conditions may not be adequately *** study examined the Ad libitum energy and nutrient intakes of CAF personnel(n=18)consuming field rations in a resting thermoneutral environment and during a day of standardized strenuous infantry activities at varying environmental ***:Dietary intake was assessed using a measured food intake/food waste method during the experimental treatment and for 6 h after *** treatments were administered in a randomized counterbalanced design:exercise(as standardized infantry activities)in the heat(30℃),exercise in the cold(–10℃),exercise in temperate thermoneutral(21℃)air temperatures and a resting(sedentary)trial(21℃).Results:The average Ad libitum consumption of field rations was 70%of the provided total energy(2776±99 kcal/8 h)during all *** with an acute challenge of increased energy expenditure and temperature stress in the simulated field conditions,participants’energy intakes(1985±747 kcal/8 h)under hot,cold and temperate treatments did not differ from energy intake during the sedentary condition(1920±640 kcal/8 h).Participants’energy intakes(1009±527 kcal/6 h)did not increase during the 6 h posttreatment period when the stresses of the strenuous physical activities and the harsh environmental temperatures had ***:These results should be considered when planning the provision of field rations for CAF personnel expected to be engaged in strenuous physical activities with prolonged exposure to temperature extremes.

关键词： Dietary assessment Nutrient intakes Military personnel Physical activity Temperature extremes Field rations

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Implementation of an international medical student pen-pal club:survey outcomes of perceptions in cultural competency and global health

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Global Health Journal 2024年第1期8卷 11-15页

作者： Max J.goodman Jennifer livschitz Ji Won Kim Megan l.Schultz Medical College of Wisconsin MilwaukeeWI 53226USA Department of Pediatrics Division of Emergency MedicineMedical College of WisconsinMilwaukeeWI53226USA

Background:Pen-pal clubs(PPC)are used worldwide for students to learn about different cultures and other skillsets without the need for *** medical students are interested in global health opportunities abroad but costs,scheduling,and other barriers allow few to participate in such *** is important that medical students have nuanced global medical perspectives and can contribute to the global medical ***:The purpose of this study is to demonstrate that an international medical student PPC improves medical students'perspectives of cultural competency and global health ***:In 2021,a novel medical student PPC was established that began between an American and Japanese medical *** a shareholders meeting,it was decided that the number of medical schools involved globally be expanded through previous institutional affiliations and online *** total,the club connected 50 American medical students and 52 medical students from 17 high-and middle-income *** primary form of communication was online;pen-pals were encouraged to communicate monthly using provided topics,although frequency and way of communication was their *** February 2022,American PPC members were emailed a qualitative survey to assess the PPC's ***:The survey was completed by 42%of American PPC members,95%of which were 22-26 *** were preclinical medical students,60%whom were female and the majority either white(47%)or Asian(43%).Overall,the PPC positively influenced American medical students'perception of global medicine,medical education,and their cultural competency after joining the PPC compared to prior(P=0.004).Conclusion:PPCs encourage medical students to think from a global perspective and foster open-mindedness within varying social and cultural *** a global communication platform for students during medical school education may be an additional way to train aspiring global l

关键词： Pen-pals Medical student Global health Cultural competency

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POSTERIOR CHAMBER INTRAOCUlAR lENS IMPlANTATION IN THE ABSENCE OF POSTERIOR CAPSUlAR SUPPORT

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Eye Science 1989年第Z1期14卷 19-23页

作者： Walter J.Stark Gerri goodman Daniel.goodman John Gottsch Wilmer Ophthalmological Institute Johns Hopkins University School of Medicine Baltimore Maryland U. S. A

Because of the high incidence and great variety of complications associated with anterior chamber intraocular lenses, we have developed a technique for the implantation of a posterior chamber intraocular lens in the absence of posterior capsular suport. The posterion chamber ■ is placed in the ciliary sulcus hy suturing the superior haptic to the iris and the inferior haptic to the sclera at the ciliary sulcus. We have used this technique successfully in both compheated extranapsular surgery and se-

关键词： intraocular capsular inferior implantation chamber suture placed incidence keratoplasty absence

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REVIEW Risk Assessment of the Mycotoxin Ochratoxin A

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Biomedical and Environmental Sciences 1989年第3期2卷 179-248页

作者： T.KUIPER-goodman P.M.SCOTT Bureau of Chemical Safety Food Directorate Health Protection Branch Health and Welfare Canada Ottawa Ontario Canada K1A0L2

Ochratoxin A (OA) is a mycotoxin which has been found to occur in foods of plant origin, in edible animal tissues, as well as in human blood sera and tissues. The ability of OA to move up the food chain is aided by its long half-life in certain edible animal species. In this report, an evaluation of the health risks to Canadians due to the presence of OA in food products is presented. The first part of the report deals with the physicochemical aspects, mycology, laboratory production, analytical methods, and natural occurrence in plant products, animal products, and human tissues. The stability of OA in foods and feeds, the effects of food processing, and the removal from foods and feeds by physicochemical means are also discussed. From these data, the worst case estimate for the daily exposure of Canadians to OA, from the consumption of pork-based food products and cereal foods, is approximately 5 ng OA/kg body wt (mean of eaters) for young children, the highest consumption group on a body weight basis. The second part of the report deals with the metabolic disposition as well as the available toxicity database for OA in laboratory animals, farm animals, and humans. The major target for OA toxicity in all mammalian species tested is the kidney, and endemic nephropathies affecting livestock as well as humans have been attributed to OA. OA is also teratogenic, and in the fetus the major target is the developing central nervous system. Recent studies have provided 'clear evidence' of the carcinogenicity of OA in two rodent species. OA was found to be nonmutagenic in various microbial and mammalian gene mutation assays, but weak genotoxic activity to mammalian cells was noted. In addition, OA was found to suppress immune function. Based on the NTP carcinogenicity study with OA in rats, the estimated tolerable daily intake in humans ranges from 0.2 to 4.2 ng OA/kg body wt, depending on the method of extrapolation used. In view of the toxic properties of OA, it is recomm

关键词： OA REVIEW Risk Assessment of the Mycotoxin Ochratoxin A

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Preparation and up-conversion luminescence properties of Er:YbAG and Er:YAG single crystals

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Journal of Materials Science & Technology 2024年第18期185卷 1-8页

作者： limin Wu Zeyu Cheng Shoulei Xu Wenxia Wu Yazhao Wang Huiting Zhang Zhonghua Zhu Ninghan Zeng Bernard Albert goodman Wen Deng School of Physical Science and Technology Guangxi UniversityNanning530004China State Key laboratory of Featured Metal Materials and life-cycle Safety for Composite Structures Nanning530004China

High quality optical single crystals of cubic Yb_(2.96)Er_(0.04)Al_(5)O_(12)and Y_(2.96)Er_(0.04)A_(l5)O_(12)were successfully pre-pared using the OFZ *** 980 nm photon absorption intensity by Yb_(2.96)Er_(0.04)Al_(5)O_(12)crystal is much larger than that in Y_(2.96)Er_(0.04)A_(l5)O_(12)crystal,the transmission of Yb_(2.96)Er_(0.04)Al_(5)O_(12)crystal is lower than that of Y_(2.96)Er_(0.04)A_(l5)O_(12)crystal,because the density of Yb_(2.96)Er_(0.04)Al_(5)O_(12)single crystal(6.604 g/cm^(3))is larger than that of Y_(2.96)Er_(0.04)A_(l5)O_(12)single crystal(4.529 g/cm^(3)).The up-conversion luminescence spec-tra of the crystals excited by 980 nm laser show several distinct groups of emission peaks at-544 and-556 nm,as well as-650 and-667 *** peak intensities of the up-conversion luminescence spec-trum for the Yb_(2.96)Er_(0.04)Al_(5)O_(12)crystal were much higher than those for the Y_(2.96)Er_(0.04)A_(l5)O_(12)***-all,the results of the present study suggest that Yb_(2.96)Er_(0.04)Al_(5)O_(12)single crystal may have advantages over Y_(2.96)Er_(0.04)A_(l5)O_(12)single crystal for luminescence in solid-state lasers.

关键词： YbAG single crystals Up-conversion luminescence Rare earth ions

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Relation between self-recalled childhood physical activity and adult physical activity: The women’s health initiative

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Open Journal of Epidemiology 2013年第4期3卷 224-231页

作者： Deborah goodman Hannah l. Park Marcia Stefanick Erin leBlanc Jennifer Bea lihong Qi Kristopher Kapphahn michael lamonte Tood Manini Manisha Desai Hoda Anton-Culver Cancer Center University of Arizona Tuscon Arizona USA Center for Health Research Kaiser Permanente Portland USA Department of Epidemiology University of California Irvine USA Department of Public Health University of California Davis Sacramento USA Department of Social and Preventive Medicine University at Buffalo Buffalo USA Institute on Aging University of Florida Gainesville USA S Stanford Prevention Research Center Stanford University Palo Alto USA

Background: Evidence suggests that childhood physical activity may play a role in the etiology and prevention of adult chronic diseases. Because researchers must often depend on self-recalled physical activity data many years after the exposure, it is important to understand factors which may influence adult recall of childhood physical activity. This study evaluated the influence of adult characteristics on reported childhood physical activity and the association between adult physical activity and self-recalled childhood physical activity. Methods: 48,066 post-menopausal women from the Women’s Health Initiative Observational Study reported their physical activity level during ages 5-9, 10-14, and 15-19. Results: In this cohort, over 65% of the population reported the same category of physical activity over the three childhood age groups. While higher levels of childhood physical activity were significantly associated with higher adult physical activity, this association varied by race/ethnicity, education, smoking, body mass index, history of diabetes or cardiovascular disease, social support and physical functional status. Women who were consistently highly active reported adult physical activity levels that were 2.82 MET-hr/week (95% C.I. = 2.43, 3.20) higher compared to women who were always physically inactive during childhood. Conclusions: It is important for researchers to understand the influence of adult characteristics on reported childhood physical activity.

关键词： Adult Childhood Physical Activity Self-Reported

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甲苯二异氰酸酯(TDI)致癌性的综合评估

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生态毒理学报 2016年第4期11卷 26-60页

作者： Robyn l.Prueitt lorenz R.Rhomberg 管娜 Julie E.goodman 金小伟 Gradient公司美国马萨诸塞州剑桥市02138 科思创聚合物(中国)有限公司上海200120 中国环境监测总站北京100012

甲苯二异氰酸酯(TDI)被数家机构分类为可能的人类致癌物,其主要依据为动物实验发现对啮齿动物经灌胃暴露TDI后肿瘤发生率升高。基于研究结果的可靠性以及一致性,综合评估了现有研究数据是否支持这一分类。结果显示现有的流行病学数据不... 详细信息

甲苯二异氰酸酯(TDI)被数家机构分类为可能的人类致癌物,其主要依据为动物实验发现对啮齿动物经灌胃暴露TDI后肿瘤发生率升高。基于研究结果的可靠性以及一致性,综合评估了现有研究数据是否支持这一分类。结果显示现有的流行病学数据不足以有力证明TDI为人类致癌物。动物实验研究表明,吸入接触TDI并不导致肿瘤发生。经灌胃暴露后观察到的肿瘤很可能是由于TDI转化为已知的啮齿动物致癌物甲苯二胺(TDA)所致。在TDI吸入暴露的体内实验中,当由TDI转化生成的TDA不能达到具有显著生物学效应的浓度时,TDI对啮齿动物或人类都没有遗传毒性。由于哺乳动物在生理性接触条件下TDI不能转变成TDA,所以对人类而言,TDI接触与致癌效应之间无直接的显著因果关系。因此虽然在如灌胃等非生理暴露的条件下,TDI可能的人类致癌物的分类是正确的,但本文对其致癌研究数据的合理评估和正确理解有助于将产品监管力度集中于与职业暴露更相关的有害健康效应上。

关键词：异氰酸酯证据权重致癌性风险评估遗传毒性

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盒式录象机原理与维修

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作者： R.l.·古德曼(R.l. goodman)

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