日期：2009-12-09 Scientists have ruled out the possibility that排除可能性 methane甲烷 is delivered to Mars by meteorites陨星 , raising fresh hopes that the gas might be generated by life on the red planet, in research published tomorrow (Wednesday 9 December 2009) i... 阅读全文>>

日期：2009-12-09 New scientific evidence refutes驳斥，反驳 the preconception预想，偏见 that testosterone睾丸素 causes aggressive, egocentric利己的 , and risky behavior. A study at the Universities of Zurich and Royal Holloway London with more than 120 experimental s... 阅读全文>>

日期：2009-12-09 Stanford scientists are harnessing nanotechnology纳米技术 to quickly produce ultra-lightweight超轻的 , bendable可弯曲的 batteries and supercapacitors超级电容器 in the form of以的形式 everyday paper. Simply coating a sheet of paper with ink made of c... 阅读全文>>

日期：2009-12-09 In 2004, Hubble created the Hubble Ultra Deep Field哈勃超深场 (HUDF), the deepest visible-light image of the Universe, and now, with its brand-new camera, Hubble is seeing even farther. This image was taken in the same region as the visible HUDF, bu... 阅读全文>>

日期：2009-12-07 Scientists have discovered what they believe is a genetic cause of severe obesity in children. 科学家发现儿童重度肥胖是由基因引起的。 The team concluded that the loss of a key segment of DNA can be to blame. It said the findings might improve diagno... 阅读全文>>

日期：2009-12-07 Scientists have made a breakthrough in understanding why a foetal blood vessel can fail to close shortly after birth, causing serious health problems. 科学家在理解为什么胎儿在出生后不久血管不能愈合这个问题上取得重大突破，该问题会导致严重的健康问题。... 阅读全文>>

日期：2009-12-06 Children exposed to secondhand cigarette smoke have an increased risk of developing lung cancer in adulthood成年 , even if they never smoked. Results of this study are published in Cancer Epidemiology, Biomarkers Prevention, a journal of the America... 阅读全文>>

日期：2009-12-06 The walls of System 97W have been breached破坏 , and residents in the Western Pacific Ocean no longer have a tropical cyclone热带气旋 to worry about today. The Joint Typhoon Warning Center cancelled their formation alert for System 97W. System 97W i... 阅读全文>>

日期：2009-12-06 A new study published this week in the Journal of Neurosurgery神经外科杂志 : Pediatrics小儿科 finds that operative plans for removing Juvenile Pilocytic纤维状细胞的 Astrocytoma星状细胞瘤 , or JPA, tumors in the thalamus神经床 of the brain can be aug... 阅读全文>>

日期：2009-12-06 In the United States, caring for a child with special health care needs usually means higher medical expenses for a family particularly for low-income families, who spend a disproportionally不相称地 large share of their income on their child's care.... 阅读全文>>

日期：2009-12-06 Case Western Reserve University researchers, from the School of Medicine's Department of Nutrition, discovered two new metabolic pathways代谢途径 by which products of lipid peroxidation脂质过氧化作用 and some drugs of abuse, known as 4- hydroxyacids... 阅读全文>>

日期：2009-12-06 The body is a battle zone. Cells constantly compete with one another for space and dominance. Though the manner in which some cells win this competition is well known to be the survival of the fittest, how stem cells duke it out打假 for space and su... 阅读全文>>

日期：2009-12-01 The University of Navarra Hospital has launched a series of clinical trials in order to assess the efficacy of an immunotherapy（免疫疗法） treatment. This approach involves the application of personalised vaccines produced from healthy and tumour c... 阅读全文>>

日期：2009-12-01 Malaria parasites（疟原虫） are able to disguise（假装，伪装） themselves to avoid the host's immune system, according to research funded by the Wellcome Trust and published today in the journal Proceedings of the National Academy of Sciences. Malar... 阅读全文>>

日期：2009-12-01 Finding and treating a tumor without disturbing normal tissue presents challenges sometimes the most effective therapies can be invasive（侵入的，攻击性的） and harsh（粗糙的，严厉的）. Researchers at Duke University Medical Center have devised a wa... 阅读全文>>

日期：2009-12-01 A study led by a Scripps Research Institute scientist describes a new, highly pragmatic approach（实际的方法） to the identification of molecules that prevent a specific type of immune cells from attacking their host. The findings add a powerful new... 阅读全文>>

日期：2009-12-01 Blind, nearly hairless, and looking something like toothy（露出牙齿的）, plump（圆胖的，丰满的）, pink fingers, naked mole rats（鼹鼠） may rank among nature's most maligned（有害的，恶性的） creatures, but their unusual physiology（生理学） endears... 阅读全文>>

日期：2009-12-01 (PHILADELPHIA) Publishing in PLoS Pathogens（公共科学图书馆病原体）, researchers at from the Kimmel Cancer Center at Jefferson have found a novel mechanism by which drugs block HIV-1 from entering host cells（宿主细胞）. Cellular invasion by HIV-1 r... 阅读全文>>

日期：2009-11-27 A cancer vaccine carried into the body on a carefully engineered, fingernail-sized implant（深植，嵌入） is the first to successfully eliminate tumors in mammals, scientists report this week in the journal Science Translational Medicine. The new app... 阅读全文>>

日期：2009-11-27 Whitehead researchers have developed a new type of genetic screen for human cells to pinpoint specific genes and proteins used by pathogens（病原体）, according to their paper in Science. In most human cell cultures genes are present in two copies:... 阅读全文>>