منابع مشابه
Poring over furrows
Cryo-electron microscopy reveals the structure of a chloride channel that is closely related to a protein that transports lipids.
متن کاملPoring over exosome structure.
almost all rNa molecules are pro cessed by rNases to form mature rNas. in addition, many rNas are degraded, either because they are no longer needed or because they are aberrant. all of these functions—rNa processing, normal rNa degradation and rNa quality con trol—are carried out by the eukaryotic rNa exosome complex. in this issue of EMBO reports, the Lorentzen group provide struc tural in...
متن کاملClimate over past Millennia
[1] We review evidence for climate change over the past several millennia from instrumental and high-resolution climate ‘‘proxy’’ data sources and climate modeling studies. We focus on changes over the past 1 to 2 millennia. We assess reconstructions and modeling studies analyzing a number of different climate fields, including atmospheric circulation diagnostics, precipitation, and drought. We...
متن کاملCauses of Climate Change Over the Past
. clicking here colleagues, clients, or customers by , you can order high-quality copies for your If you wish to distribute this article to others . here following the guidelines can be obtained by Permission to republish or repurpose articles or portions of articles (this information is current as of April 13, 2010 ): The following resources related to this article are available online at www....
متن کاملClimate Over the Past Two Millennia
To assess the significance of modern climate change, it is essential to place recent observed changes in a longer-term context. This review assesses the evidence from both “proxy” climate data and theoretical climate model simulations with regard to the nature and causes of climate variability over a time interval spanning roughly the past two millennia. Evidence is reviewed for changes in temp...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 2005
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.309.5741.1651d