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国内外科技动态 11月21日

已有 2508 次阅读 2013-11-21 05:51 |个人分类:科研动态|系统分类:科研笔记


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2013年11月21日 | 我不怕千万人阻挡,只怕自己投降。
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76 种英文科技期刊入选中国科技期刊国际影响力提升计划,这是迄今为止中国国内最大的一笔科技期刊资助经费。

25
为了探一探学术期刊的水准,博安农精心炮制了一场“钓鱼”实验。但实验结果似乎给这一新鲜事物泼了一盆冷水。

25
山中伸弥(Shinya Yamanaka)率领的研究小组发现了一种新方法,能鉴定 iPS 细胞的质量,有助选出适用的 iPS 细胞。

25
毫不夸张地说,我国科研机构和科研人员对SCI论文的崇拜程度,丝毫不亚于地方政府对GDP的崇拜,功利色彩强。

25
赌徒把钱看得高于一切,其对钱的痴迷凌驾于性等基本生存和发展需求之上,这种行为就像有些人嗜酒成瘾。

25
研究人员通过分析四个新合成的异源四倍体小麦,解析了四倍体小麦物种形成的机制,这将有助于开发独特的小麦品种。

25
科学家通过修复一个有缺陷的基因治疗了狗的血友病,这标志着向着治疗人类血友病又迈进了一大步。

25
研究结果表明,垃圾序列中保存有远古病毒信息的人们与患癌倾向之间存在关联。

25
雄性果蝇是激进的斗士,它们会用头撞击以及推挤彼此。然而有一样东西可以让它们平静下来:那就是雌性果蝇的触摸。

25
金黄色葡萄球菌劫持人类的初级免疫防御机制,这些细菌正是借此机制来破坏宿主的白细胞。

25
研究人员追踪分析了流行病学意义上艾滋病患者 HIV 病毒扩散,由此研发出了一种新颖的方式,用于解析 HIV 病毒的演化。

25
研究人员发现了一种即使不授粉也能结出漂亮果实的西红柿新品种,这种西红柿有助减少栽培成本。

25
日本一项最新研究说,如果在切除乳房前先用硅胶制造出乳房模型,可以大幅减少重建手术的时间。

25
研人员借助结构生物学研究方法成功对一种免疫原进行了人工改造,经过精心打造的RSV蛋白能够诱发非常明显的免疫反应。

25
有抑郁症病史的人的细胞可能老化得更迅速。这项研究因其涉及人数之广而意义重大。

25
联邦地区法院宣布,基于血液的一项唐氏综合征产前诊断专利无效。原因是该专利存在“优先占有自然现象的风险”。

25
此前一直陷入财政困境的国际动物命名委员会(ICZN)终于在新加坡为自己找到了一个新的归宿—— 一个短期的财政担保。

25
组织文化积累的强度取决于组织的大小及其与社会团体间的关联互动。复杂的文化传统在更大、更友善的团体中可以保持更长时间且更快得到改进。

25
在普通民众哭着喊着哀求不要延长退休年龄的时候,一些院士们却也在努力争取退休的权利,甚至是千方百计想退休而不可得。

25
中国绝大多数论文从来未被引用,寂寞地埋藏在堆积如山的废纸之中无人问津。转身回看这片海量僵尸论文的坟场,这里不仅废弃了大量科研经费,还埋葬了无数人的宝贵年华。

25
素有“亚洲麒麟”之称、已濒临绝种的全球稀有哺乳类动物武广牛(Saola),在睽违15年后再度在越南中部山区现踪。




Science/AAASScience News
Daily Headlines
 

20 NOVEMBER 2013

Today's news from ScienceNOW and ScienceInsider

20 NOVEMBER 2013 | Archaeology
Ancient skeleton of Siberian boy reveals some surprises


20 NOVEMBER 2013 | Paleontology
Scientists create 3D replicas of fossils still entombed in rock


20 NOVEMBER 2013 | Climate
NCSE names a successor to longtime director Eugenie Scott


19 NOVEMBER 2013 | Paleontology
Specimens with potential scientific value fail to sell, as paleontologists continue to fret about their fate


19 NOVEMBER 2013 | Brain Behavior
Online simulation reveals how a herd instinct can overwhelm reason in an emergency


19 NOVEMBER 2013 | Health
Even successful treatments could take 2 weeks to vanquish nits


19 NOVEMBER 2013 | Asia/Pacific
Latest move to loosen birth restrictions may be prelude to total overhaul


19 NOVEMBER 2013 | Biology
Still, a majority of molecular biology hobbyists say regulation is inevitable



Sponsored by Sigma Aldrich


Science/AAASScience Translational Medicine
Table of Contents
 

20 NOVEMBER 2013VOLUME 5, ISSUE 212


Announcing the 2014 AAAS Martin and Rose Wachtel Cancer Research Award for young investigators. Applications due March 1st, 2014.

Join Science Translational Medicine for a symposium on catastrophic epilepsy in Houston, Texas, April 28-29, 2014.

In this week's issue:


RESEARCH ARTICLES


INFERTILITY

Measurements of seminal plasma proteins ECM1 and TEX101 facilitate the differential diagnosis of azoospermia.


ALZHEIMER’S DISEASE

Introduction of different APOE isoforms modulates Aβ peptide aggregation and neurotoxicity after amyloid deposition in mouse brain.


METABOLIC SYNDROME

Long-term treatment of obese, insulin-resistant nonhuman primates with a seed-targeting antimiR oligonucleotide against the microRNA-33 family derepresses hepatic expression of miR-33 targets, increases circulating HDL cholesterol, and has a clean safety profile.


BIOENGINEERING

Single-cell biophysical properties were used for diagnosing malignant pleural effusions from patients



FOCUS


CANCER

A new high-throughput measurement technique by Tse et al. (this issue) moves mechanical phenotyping of cells in malignant pleural effusions closer to the clinic.




REVIEW


MOLECULAR CLOCKS

Recent advances in our understanding of molecular clocks highlight their relevance to human physiology and disease.



EDITORS' CHOICE


IMMUNOLOGY

New technology permits high-throughput identification and analysis of specific T cell receptors.


PAIN

Central nervous system–specific chloride extrusion enhancers show promise as therapeutics for neuropathic pain.


CANCER

Leukemic stem cells that generate AML and CML may reside in distinct niches within the bone marrow microenvironment.


CARDIOLOGY

Genetic mutations that affect the nitric oxide pathway and lead to accelerated clotting increase the risk of coronary heart disease.


 
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Sponsored by Sigma Aldrich

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Sigma-Aldrich has built a comprehensive approach to strengthen and support academic Translational Research. Incorporating our history of serving the pharmaceutical industry and our deep expertise in chemistry and biology basic research, Sigma-Aldrich provides both the fundamental and novel technologies that ensure greater accuracy, reproducibility and confidence in drug discovery research. Our continuing investment in innovation and quality supports the mission of Translational Research and, through your success, enables science to improve the quality of human life.

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