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6篇 您的检索式:作者名="J.Goodman"
    题名 作者 年代 出处 被引量
1Single carrier FDMA for uplink wireless transmission显示文摘Hyung G.Myung Junsung Lim David J.Goodman 0,,03:1
2Beyond Clausius-Mossotti:wave propagation on a polarizable point lattice and the discrete dipole approximation显示文摘B.T.Draine J.Goodman 0,,:1
3Federal Program Expenditures for Working-Age People With Disabilities显示文摘Nanette J.Goodman David C.Stapleton 0,,02:1
4Optimization and control of synchrotron emission in ultraintense laser–solid interactions using machine learning显示文摘The optimum parameters for the generation of synchrotron radiation in ultraintense laser pulse interactions with planar foils are investigated with the application of Bayesian optimization,via Gaussian process regression,to 2D particle-incell simulations.Individual properties of the synchrotron emission,such as the yield,are maximized,and simultaneous mitigation of bremsstrahlung emission is achieved with multi-variate objective functions.The angle-of-incidence of the laser pulse onto the target is shown to strongly influence the synchrotron yield and angular profile,with oblique incidence producing the optimal results.This is further explored in 3D simulations,in which additional control of the spatial profile of synchrotron emission is demonstrated by varying the polarization of the laser light.The results demonstrate the utility of applying a machine learning-based optimization approach and provide new insights into the physics of radiation generation in laser-foil interactions,which will inform the design of experiments in the quantum electrodynamics(QED)-plasma regime.J.Goodman M.King E.J.Dolier R.Wilson R.J.Gray P.McKenna 2023High Power Laser Science and Engineering2023,11,3:0
5Implementation of an international medical student pen-pal club:survey outcomes of perceptions in cultural competency and global health显示文摘Background:Pen-pal clubs(PPC)are used worldwide for students to learn about different cultures and other skillsets without the need for travel.Many medical students are interested in global health opportunities abroad but costs,scheduling,and other barriers allow few to participate in such experiences.It is important that medical students have nuanced global medical perspectives and can contribute to the global medical community.Objective:The purpose of this study is to demonstrate that an international medical student PPC improves medical students'perspectives of cultural competency and global health engagement.Methods:In 2021,a novel medical student PPC was established that began between an American and Japanese medical school.Following a shareholders meeting,it was decided that the number of medical schools involved globally be expanded through previous institutional affiliations and online presences.In total,the club connected 50 American medical students and 52 medical students from 17 high-and middle-income countries.The primary form of communication was online;pen-pals were encouraged to communicate monthly using provided topics,although frequency and way of communication was their discretion.In February 2022,American PPC members were emailed a qualitative survey to assess the PPC's impact.Results:The survey was completed by 42%of American PPC members,95%of which were 22-26 years.Participants 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 contexts.Having a global communication platform for students during medical school education may be an additional way to train aspiring global leaders.Max J.Goodman Jennifer Livschitz Ji Won Kim Megan L.Schultz 2024Global Health Journal2024,8,1:0
6里海海豹(Phoca caspica)幼崽繁殖和哺育分布与人类影响的关系显示文摘为了评估里海海豹这个物种年度幼崽生殖情况及新生幼崽的被自然捕食情况,2005和2006年2月在哈萨克斯坦领海的冬季冰原对里海海豹进行了航空调查。据估计,2005年幼崽生殖数量为21063头,2006年为16905头(每年出生在俄罗斯领土上的里海海豹幼崽估计数包括在内)。大约20 000头雌性里海海豹的繁殖种群数量大大低于所公布的20世纪80年代末以来的估计数。鹰是里海海豹幼崽的头号捕食天敌。尽管2005年,商业破冰船路线没有穿越里海海豹幼崽集中的区域,但是在2006年,商业破冰船路线穿越了这些区域。我们的发现对制定该物种的保护策略有着重要的意义。自然死亡率、捕食者造成的损失,以及更为重要的是,现有的捕猎限额显著超过了里海海豹种群的补充量。人为的致死行为应当得以控制,以避免该物种的进一步减少。Tero Harkonen Mart Jüssi Mirgaly Baimukanov Anders Bignert Lilia Dmitrieva Yesbol Kasimbekov Mikhail Verevkin Susan Wilson Simon J.Goodman 黄南艳 林宁 2008AMBIO-人类环境杂志2008,37,5:0
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