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中国神经科学学会第十二届全国学术会议

作者： Gal Richter-levin Sagol Department of Neurobiology and the Institute for the Study of Affective Neuroscience University of Haifa

The amygdala modulates memory processes in other brain areas and modulates emotional memory formation（i.e. "Emotional Tagging"）. Under extreme conditions amygdala modulation may lead to the formation of abnormal plasticity and to the formation of trauma-related psychopathologies. In the past we could demonstrate that priming the amygdala prior to attempts to induce long-term potentiation（LTP） in areas such as the hippocampus and m PFC, indeed modulated the level of LTP. Importantly, it was demonstrated that similar to exposure to different stressors, priming the amygdala did not simply enhance or suppress LTP, but rather had region-specific effects. For example, priming the amygdala suppressed LTP in CA1 but enhanced LTP in the dentate gyrus（DG）. These results were in full agreement with the notion that stress and trauma do not impair or enhance memory but rather modulate the way the experience is remembered. However, the amygdala is a dynamic brain region which by itself is affected by emotional experiences and being amenable to long-term plasticity. Typically in stressrelated research animals are exposure to stress and the impact of that exposure is then examined. Similarly, amygdala priming effects on plasticity in other brain areas was mainly studied by priming the amygdala once and examining the impact on LTP induction in other brain areas. These approaches fail to take into consideration the dynamic nature of responses to stress and the fact that the amygdala is amenable to plasticity which may modify the emotional response of the individual later on. In recent years, we have started to examine the possible implications of the dynamic nature of the amygdala. We have employed a range of methodologies aiming to understand the consequences of meta-plastic alterations within the amygdala on its role in emotional learning and in stress-related psychopathologies. Various methods were employed, including the use of a range of BLA-priming stimuli, exposure of animals

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日本医疗保健制度的特点—平衡,谐调

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中华医院管理杂志 1993年第6期9卷 379-383页

作者： levin PJ 杨玲北京友谊医院

日本的医疗保健制度完全适应于国家有序而平衡的内部结构，其组织和运行反映了日本文化的协调与平衡。日本经济的成功已在管理科学家们中引起普遍注意。医疗保健系统对保证和提高创造高生产率的劳动力的健康水平，其作用尚未引起人们更... 详细信息

日本的医疗保健制度完全适应于国家有序而平衡的内部结构，其组织和运行反映了日本文化的协调与平衡。日本经济的成功已在管理科学家们中引起普遍注意。医疗保健系统对保证和提高创造高生产率的劳动力的健康水平，其作用尚未引起人们更多的注意。

关键词：医疗保健日本卫生保健事业

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Incidence and consequences of varicella in children treated for cancer in Guatemala

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World Journal of Pediatrics 2016年第3期12卷 320-326页

作者： Amy E.Caruso Brown Edwin J.Asturias Mario Melgar Federico A.Antillon-Klussmann Pamela Mettler Myron J.levin Center for Bioethics and Humanities and Department of Pediatrics SUNY Upstate Medical University Center for Global Health and Department of Epidemiology Colorado School of Public HealthAuroraColoradoUSA National Unit of Pediatric Oncology Guatemala CityGuatemala Department of Biostatistics and Informatics Colorado Biostatistics ConsortiumColorado School of Public HealthAuroraColoradoUSA Section of Pediatric Infectious Diseases Department of PediatricsUniversity of Colorado Denver Anschutz Medical CampusAuroraColoradoUSA

Background:Varicella-zoster virus infection is associated with significant morbidity and mortality in immune-compromised children,despite treatment with antiviral *** varicella vaccine programs have significantly decreased this risk in many highincome countries,but in most low-income and middleincome countries,the burden of varicella in children treated for malignancy is poorly defi ***:We retrospectively reviewed records of children at the National Unit of Pediatric Oncology(UNOP)in Guatemala diagnosed with varicella between January 2009 and march 2013 in order to calculate incidence of varicella and evaluate morbidity,mortality,treatment interruption,and ***:Fifty-nine cases of varicella were *** was 23.4 cases per 1000 person-years(p-y).66.1%of cases occurred in children with leukemia(median age 5.2 years;interquantile range 3.4-7 years)and 41.0%of these occurred during maintenance *** of exposure was identified for 14/59(23.7%)*** were hospitalized(71.2%)and given intravenous acyclovir(64.4%).Eight(13.6%)children required critical care,and two(3.4%)died from disseminated varicella with multiorgan *** was delayed or omitted due to varicella in 50%.No signifi cant differences in outcomes based on nutritional and immunologic status were *** minimum average cost of treatment per episode was 598.75 ***:Varicella is a significant problem in children treated for cancer in Guatemala,where effective post-exposure prophylaxis is *** the absence of universal varicella vaccination,strategies to improve recognition of exposure and the future use of novel inactivated vaccines currently under investigation in clinical trials could mitigate this burden.

关键词： cancer developing countries immunocompromised host oncology varicella

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大学是经济发展的火车头

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清华大学教育研究 2001年第2期22卷 4-7页

作者： Richard C.levin 陈红耶鲁大学清华大学外事处北京100084

"大学是经济发展的火车头"这一主题是我作为经济学家和大学校长的经验的总结.我相信这一主题对于清华这样在科学与工程方面对中国的经济发展有卓著贡献的重要的大学也应有很多启示.

关键词：大学经济发展美国大学自由教育

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Springing

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小学生时代（大嘴英语） 2023年第3期 18-19页

作者： Neal levin Michelle Hazelwood Hyde(图) 不详

How delightful!Spring is bringing everything a new *** is *** are *** are ***,*** in the park areswinging.I'm so happy spring is springing,Spring is coming.春姑娘悄悄向我们走来,挥一挥衣袖,万物复苏。ning鸟儿在歌唱,虫儿在鸣叫。草儿探着头,花儿羞答答地笑。Spring is *** is shining.你的世界里,还有哪些正在“进行时”?

关键词： Spring spring bringing

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Soft-tissue management and reconstruction of lower-extremity trauma

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Plastic and Aesthetic Research 2022年第1期9卷 233-242页

作者： Sammy Othman Said C.Azoury Kevin M.Klifto LScott levin Stephen J.Kovach Department of Plastic and Reconstructive Surgery Northwell HealthNew YorkNY 1075USA Division of Plastic and Reconstructive Surgery Department of SurgeryMemorial Sloan Kettering Cancer CenterNew YorkNY 1075USA Division of Plastic and Reconstructive Surgery Department of SurgeryUniversity of MissouriColumbiaMO 65211USA Department of Orthopedic Surgery University of PennsylvaniaPhiladelphiaPA 19104USA Division of Plastic and Reconstructive Surgery Department of SurgeryUniversity of PennsylvaniaPhiladelphiaPA 19104USA

Soft-tissue management and subsequent salvage of the lower extremity following trauma has long presented difficult challenges to the plastic *** to the lower extremity can produce long-term sequelae consisting of psychological trauma,functional deficits,and increased costs to the healthcare *** incorrect management is important,and is compounded by the fact that few guidelines exist on appropriate treatment and patient *** study aims to describe the authors’experience at a large limb salvage center in order to further delineate management strategies.

关键词： Reconstructive surgery trauma lower extremity microsurgery soft-tissue

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Size-dependent structural and magnetic properties of chemically synthesized Co-Ni-Ga nanoparticles

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Nano Research 2017年第10期10卷 3421-3433页

作者： Changhai Wang Aleksandr A. levin Julie Karel Simone Fabbrici Jinfeng Qian Carlos E. ViolBarbosa Siham Ouardi Franca Albertini Walter Schnelle Jan Rohlicek Gerhard H. Fecher Claudia Felser Max Planck Institute for Chemical Physics of Solids D-01187 Dresden Germany Institute of Materials for Electronics and Magnetism IMEM-CNRI-43124 Parma Italy MIST E-R Laboratory Via Gobetti 101 I-40129 Bologna Italy

Phase transitions and magnetic properties of shape-memory materials can be tailored by tuning the size of the constituent materials, such as nanoparticles. However, owing to the lack of suitable synthetic methods for size-controlled Heusler nanoparticles, there is no report on the size dependence of their properties and functionalities. In this contribution, we present the first chemical synthesis of size-selected Co-Ni-Ga Heusler nanoparticles. We also report the structure and magnetic properties of the biphasic Co-Ni-Ga nanoparticles with sizes in the range of 30-84 nm, prepared by a SBA-15 nanoporous silica- templated approach. The particle sizes could be readily tuned by controlling the loading and concentration of the precursors. The fractions and crystallite sizes of each phase of the Co-Ni-Ga nanoparticles are closely related to their particle size. Enhanced magnetization and decreased coercivity are observed with increasing particle size. The Curie temperature （To） of the Co-Ni-Ga nanoparticles also depends on their size. The 84 nm-sized particles exhibit the highest Tc （≈ 1,174 K） among all known Heusler compounds. The very high Curie temperatures of the Co-Ni-Ga nanoparticles render them promising candidates for application in high-temperature shape memory alloy-based devices.

关键词： Co-Ni-Ga nanoparticles chemical synthesis size magnetic properties

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CHALLENGES AND OPPORTUNITIES OF EDUCATIONAL PRIVATIZATION

CHALLENGES AND OPPORTUNITIES OF EDUCATIONAL PRIVATIZATION

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北京论坛（2004）文明的和谐与共同繁荣

作者： Henry M.levin

The PRC is experiencing a rapid expansion of education at all levels as economic opportunities require more and more education. At the moment there is a very high demand relative to the supply of enrollment openings, particularly in locations of rapid population expansion or where previous enrollments were low. This presentation will address both the benefits and challenges of promoting private schools within an overall regional and national educational framework. It will draw on the important work of Estelle James in explaining why private schools arise and expand. It will then set out four criteria for evaluating privatization: choice, efficiency, equity, and social cohesion. It will show that any plan must consider all of these criteria and must adjust public policy over time to assure that each is met to the degree that is necessary.

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A Kiss Before Dying (Macmillan Reader)

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2005年

作者： Ira levin F.H. Cornish

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A rare case of severe third degree friction burns and large Morel-Lavallee lesion of the abdominal wall

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Burns & Trauma 2018年第1期6卷 63-66页

作者： Darnell J.Brown Kuo Jung G.Lu Kristina Chang Jennifer levin John T.Schulz Jeremy Goverman Massachusetts General Hospital Harvard Medical SchoolBostonMAUSA

Background: Morel-Lavallee lesions (MLLs) are rare internal degloving injuries typically caused by blunt traumatic injuries and most commonly occur around the hips and in association with pelvic or acetabular fractures. MLL is often overlooked in the setting of poly-trauma;therefore, clinicians must maintain a high degree of suspicion and be familiar with the management of such injuries, especially in obese poly-trauma patients. Case presentation: We present a 30-year-old female pedestrian struck by a motor vehicle who sustained multiple long bone fractures, a mesenteric hematoma, and full-thickness abdominal skin friction burn which masked a significant underlying abdominal MLL. The internal degloving caused significant devascularization of the overlying soft tissue and skin which required surgical drainage of hematoma, abdominal wall reconstruction with tangential excision, allografting, negative pressure wound therapy, and ultimately autografting. Conclusion: MLL is a rare, often overlooked, internal degloving injury. Surgeons must maintain a high index of suspicion when dealing with third degree friction burns as they may mask underlying injuries such as MLL, and a delay in diagnosis can lead to increased morbidity.

关键词： Friction burns Blunt trauma friction burns nternal degloving injuries Morel-Lavallee lesion Traumatic pseudocyst

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