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无人驾驶的困惑

经营者(汽车商业评论) 2013年第2期 44-44页

作者： doron levin

自动驾驶技术正在快速发展,但各大厂商担心消费者和监管层可能不会那么痛快地放弃对车的操控权少数几家汽车厂商,如奥迪、丰田的雷克萨斯和梅赛德斯·奔驰正在越来越公开地展示自己的自动驾驶技术,它能让车只需极少的驾驶指令就能自动... 详细信息

自动驾驶技术正在快速发展,但各大厂商担心消费者和监管层可能不会那么痛快地放弃对车的操控权少数几家汽车厂商,如奥迪、丰田的雷克萨斯和梅赛德斯·奔驰正在越来越公开地展示自己的自动驾驶技术,它能让车只需极少的驾驶指令就能自动行驶。

关键词：无人驾驶交通拥堵自动驾驶技术

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豹胆与虎心

经营者(汽车商业评论) 2015年第2期 54-54页

作者： doron levin

捷豹路虎必须挑战奥迪、宝马和奔驰建立的现有秩序,为此正为人们建立明显的差异化选择2008年,捷豹和路虎被转让给印度塔塔集团。当时,这两大品牌前景非常不明朗,全球经济危机刚刚爆发,没有明确迹象表明豪华车型的销量何时才能再度恢复... 详细信息

捷豹路虎必须挑战奥迪、宝马和奔驰建立的现有秩序,为此正为人们建立明显的差异化选择2008年,捷豹和路虎被转让给印度塔塔集团。当时,这两大品牌前景非常不明朗,全球经济危机刚刚爆发,没有明确迹象表明豪华车型的销量何时才能再度恢复增长。现在看来,当时的担心实在不

关键词：柴油发动机底特律塔塔集团

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宝马学苹果天才

经营者(汽车商业评论) 2014年第12期 56-56页

作者： doron levin

产品天才是为顾客打造更有内容、更加友好的客户体验的第一线为了保住全球头号豪华汽车制造商的宝座,宝马正重新设计其经销商的运作方式,将增设更多"天才"产品专家,同时减少销售人员。这是一种更柔和、更轻松的服务理念,因苹果而普及开... 详细信息

产品天才是为顾客打造更有内容、更加友好的客户体验的第一线为了保住全球头号豪华汽车制造商的宝座,宝马正重新设计其经销商的运作方式,将增设更多"天才"产品专家,同时减少销售人员。这是一种更柔和、更轻松的服务理念,因苹果而普及开来。在苹果门店中,有专门的产品专家向顾客解释苹果公司的笔记本电脑及其他产品。顾客可向训练有素的产品专家提问,而无需有议价的压力。一旦他们决定

关键词：经销商

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通用汽车公开募股前的首要大事:提高销量

长三角 2010年第10期 15-15页

作者： doron levin 陈宝财富中文网

如果需求在短时间内不能提升的话,包括通用汽车在内的汽车制造商们,都将面临越来越大的减产压力。正如前"汽车沙皇"(美国政府为通用汽车、克莱斯勒和福特委任的监管者,全权负责监督改革与审批贷款)史蒂夫·拉特纳曾经说过的那样,美国政... 详细信息

如果需求在短时间内不能提升的话,包括通用汽车在内的汽车制造商们,都将面临越来越大的减产压力。正如前"汽车沙皇"(美国政府为通用汽车、克莱斯勒和福特委任的监管者,全权负责监督改革与审批贷款)史蒂夫·拉特纳曾经说过的那样,美国政府决定拯救通用汽车的一个主要原因在于,他的团队相信通用汽车生产的汽车比该公司的名声好得多。根据他们这种逻辑,买家们最终必将认识到这一点,然后通用汽车的销量就会增加,也就有了更强的定价能力,从而提升公司的财务业绩。

关键词：通用汽车汽车制造商美国政府销量市场份额汽车生产克莱斯勒募股财务业绩公开

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通用汽车女掌门的当务之急

公关世界 2014年第2期 85-85页

作者： doron levin 唐昕昕

因为是底特律汽车巨头的第一位女性CEO,玛丽·芭拉的女性身份十分引人注目。不过,能不能干好通用汽车掌门人这份工作、重振这家老牌汽车制造商的辉煌就跟她是不是女人没关系了。要做到这一点,她需要解决几个困扰通用汽车发展的重大问题... 详细信息

因为是底特律汽车巨头的第一位女性CEO,玛丽·芭拉的女性身份十分引人注目。不过,能不能干好通用汽车掌门人这份工作、重振这家老牌汽车制造商的辉煌就跟她是不是女人没关系了。要做到这一点,她需要解决几个困扰通用汽车发展的重大问题。商界和汽车业界对即将上任的通用汽车新任首席执行官玛丽·芭拉女性身份的热议将很快降温,随之而来的,是对其她在重振通用汽车辉煌的道路上所需要展现的领导才能。成长于密歇根州东南部的玛

关键词：通用汽车通用汽车公司女性身份

Metabolic cost of flight and aerobic efficiency in the rose chafer,Protaetia cuprea(Cetoniinae)

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Insect Science 2022年第5期29卷 1361-1372页

作者： Tomer Urca Eran levin Gal Ribak School of Zoology Faculty of Life SciencesTel Aviv UniversityTel AvivIsrael Steinhardt Museum of Natural History Israel National Center for Biodiversity StudiesTel AvivIsrael

Rose chafer beetles(Protetia cuprea)are pollinators as well as agricultural pests,flying between flowers and trees while foraging for pollen and *** the energy they expend on flying during foraging activity faces the challenge of measuring the metabolic rate(MR)of free-flying insects in an open *** overcame this challenge by using the bolus injection of ^(13)C Na-bicarbonate technique to measure their metabolic energy expenditure while flying in a large flight ***,we tracked the insects with high-speed cameras to extract their flight trajectory,from which we calculated the mechanical power invested in flying for each flight *** found that the chemical(metabolic)energy input converted to mechanical flight energy output at a mean efficiency of 10.4%±5.2%,with a trend of increased efficiency in larger conspecifics(efficiency scaled with body mass to the power of 1.4).The transition in the summer from a diet of pollen to that of fruits may affect the energy budget available for *** ***,feeding on apples ad libitum,increased their body mass by an average of 6%in 2 *** to our calculations,such a meal can power a 630-m flight(assuming a carbohydrate assimilation efficiency of 90%).Pollen,with a low water and carbohydrate content but rich in proteins and lipids,has a higher caloric content and should assimilate differently when converting food to flight *** high cost of aerial locomotion is inherent to the foraging behavior of rose chafers,explaining their short flight bouts followed by prolonged feeding activity.

关键词： aerobic eficieney bolus injection of^(13)C-Na-bicarbonate feeding capacity flight metabolic rate flower chafer bele free flight mechanical power

Explosion of autoimmune diseases and the mosaic of old and novel factors

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Cellular & Molecular Immunology 2011年第3期8卷 189-192页

作者： Nancy Agmon-levin Zhexiong Lian Yehuda Shoenfeld The Zabludowicz Center for Autoimmune Diseases and Department of Medicine B Sheba Medical CenterTel-HashomerIsrael Institute of Immunology and School of Life Sciences University of Science and Technology of ChinaHefeiChina Incumbent of the Laura Schwarz-Kip Chair for Research of Autoimmune Diseases Tel-Aviv University

In recent decades,an enormous effort has been made to elucidate the pathogenesis of autoimmune and autoinflammatory *** is a multifactorial process in which genetic,immunological,environmental and hormonal factors play in concert,together representing what was termed years ago the‘mosaic of autoimmunity’.To date,more than 80 systemic and organ-specific autoimmune diseases have been defined,and their cumulative burden is substantial,both medically and ***,the burden of autoimmune and autoinflammatory diseases is rising,making these diseases a ubiquitous global phenomenon that is predicted to further increase in the coming *** this issue of the journal,additional aspects of autoimmunity are *** dysregulation and loss of self-tolerance are the cornerstones of autoimmunity.

关键词： ASIA autoimmunity vaccines silicone Golf war syndrome

Intraspecific scaling and early life history determine the cost of free-flight in a large beetle(Batocera rufomaculata)

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Insect Science 2024年第2期31卷 524-532页

作者： Tomer Urcai Eran levin Eran Gefen Gal Ribak Faculty of Life Sciences School of ZoologyTel Aviv UniversityTel AvivIsrael Steinhardt Museum of Natural History Israel National Center for Biodiversity StudiesTel AvivIsrael Department of Biology University of Haifa-OranimKiryat TivonIsrael

The scaling of the energetic cost of locomotion with body mass is well documented at the interspecific ***,methodological restrictions limit our understanding of the scaling of flight metabolic rate(MR)in free-flying *** is particularly true at the intraspecific level,where variation in body mass and flight energetics may have direct consequences for the fitness of an *** applied a 13C stable isotope method to investigate the scaling of MR with body mass during free-flight in the beetle Batocera *** species exhibits large intraspecific variation in adult body mass as a consequence of the environmental conditions during larval *** show that the flight-MR scales with body mass to the power of 0.57,with smaller conspecifics possessing up to 2.3 fold higher mass-specific flight MR than larger *** the scaling exponent of free-flight MR was found to be like that determined for tethered-flight,the energy expenditure during free-flight was more than 2.7 fold higher than for *** metabolic cost of flight should therefore be studied under free-flight conditions,a requirement now enabled by the 13C technique described herein for insect flight.

关键词： allometry body mass Coleoptera free-flight insect flight stable carbon isotope tethered-flight

Multitarget stool DNA for colorectal cancer screening:A review and commentary on the United States Preventive Services Draft Guidelines

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World Journal of Gastrointestinal Oncology 2016年第5期8卷 450-458页

作者： Barry M Berger Bernard levin Robert J Hilsden Medical Affairs Exact Sciences Corporation Scientific Advisory Board Exact Sciences Departments of Medicine and Community Health Sciences University of Calgary

Multitarget stool DNA(mt-sDNA) testing was approved for average risk colorectal cancer(CRC) screening by the United States Food and Drug Administration and thereafter reimbursed for use by the Medicare program(2014).The United States Preventive Services Task Force(USPSTF) October 2015 draft recommendation for CRC screening included mt-s DNA as an "alternative" screening test that "may be useful in select clinical circumstances",despite its very high sensitivity for early stage *** evidence supporting mt-s DNA for routine screening use is *** clinical efficacy of mt-s DNA as measured by sensitivity,specificity,life-years gained(LYG),and CRC deaths averted is similar to or exceeds that of the other more specifically recommended screening options included in the draft document,especially those requiring annual testing *** a population with primarily irregular screening participation,tests with the highest point sensitivity and reasonable specificity are more likely to favorably impact CRC related morbidity and mortality than those depending on annual *** paper reviews the evidence supporting mt-s DNA for routine screening and demonstrates,using USPSTF's modeling data,that mt-s DNA at three-year intervals provides significant clinical net benefits and fewer complications per LYG than annual fecal immunochemical testing,high sensitivity guaiac based fecal occult blood testing and 10-year colonoscopy screening.

关键词： Colorectal cancer screening Multitarget stool DNA Stool DNA The United States Preventive Services Task Force Cancer Intervention Surveillance Modeling Network Fecal immunological technique Modeling Interval