Oxygen at life's boundaries

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Lifes preservative against self-killing

in the "index of botanical names", where the medieval Latin designations take you to the main dictionary, for example to the items satirion and testiculus leporis, under which the Middle English names are listed, in the case of satirion indiscriminately with other possible identifications, such as Arum and Endymion. Admittedly, the difficulties of identification are considerable-one reason bein...

متن کامل

Hierarchies of Biocomplexity: modeling lifes energetic complexity

In this paper, a model for understanding the effects of selection using systems-level computational approaches is introduced. A number of concepts and principles essential for understanding the motivation for constructing the model will be introduced first. This will be followed by a description of parameters, measurements, and graphical representations used in the model. Four possible outcomes...

متن کامل

Oxygen Vacancies at Grain Boundaries in Doubly-Doped Ceria Determined using EELS

In oxygen conducting ceramics such as cerium-based oxides, O 2diffusion occurs via vacancy hopping. The vacancy concentration can be modulated through doping with aliovalent cations such as Gd 3+ or Pr 3+ . Sluggish ionic conductivity in these electrolytes has been attributed to various defects which increase the activation energy for anion migration. The association of mobile oxygen vacancies ...

متن کامل

Balancing cell behavior at boundaries

The restriction of cell intermingling across boundaries is essential for the establishment of discrete tissues. Eph receptor signaling prevents intermingling at many boundaries. In this issue, Luu et al. (2015. J. Cell Biol. http://dx.doi.org/10.1083/jcb.201409026) report a parallel pathway, mediated by Wnt signaling, Snail1, and paraxial protocadherin (PAPC). This pathway establishes a distinc...

متن کامل

Attentional Enhancement at Event Boundaries

A fundamental aspect of everyday processing involves identifying discrete events within continuously unfolding sensory experience. However, the processes enabling determination of event boundaries remain poorly understood. Recently, inconsistent conclusions have emerged regarding attentional processes associated with detection of event boundaries. Use of the Dwell-Time Paradigm has indicated en...

متن کامل

ذخیره 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: Nature

سال: 2006

ISSN: 0028-0836,1476-4687

DOI: 10.1038/nature05521