My watch list
my.chemeurope.com  
Login  

16,756 Newest Publications in proceedings of the national academy of sciences current issue

rss
matching the following criteria

Motor role of parietal cortex in a monkey model of hemispatial neglect [Neuroscience]

21-Apr-2015 | Jan Kubanek; Jingfeng M. Li; Lawrence H. Snyder, Proceedings of the National Academy of Sciences current issue, 2015

Parietal cortex is central to spatial cognition. Lesions of parietal cortex often lead to hemispatial neglect, an impairment of choices of targets in space. It has been unclear whether parietal cortex implements target choice at the general cognitive level, or whether parietal cortex subserves ...

more

Metallic lead nanospheres discovered in ancient zircons [Earth, Atmospheric, and Planetary Sciences]

21-Apr-2015 | Monika A. Kusiak; Daniel J. Dunkley; Richard Wirth; Martin J. Whitehouse; Simon A. Wilde; Katharina Marquardt, Proceedings of the National Academy of Sciences current issue, 2015

Zircon (ZrSiO4) is the most commonly used geochronometer, preserving age and geochemical information through a wide range of geological processes. However, zircon U–Pb geochronology can be affected by redistribution of radiogenic Pb, which is incompatible in the crystal structure. This phenomenon ...

more

Biology in the Anthropocene: Challenges and insights from young fossil records [Biological Sciences]

21-Apr-2015 | Susan M. Kidwell, Proceedings of the National Academy of Sciences current issue, 2015

With overwhelming evidence of change in habitats, biologists today must assume that few, if any, study areas are natural and that biological variability is superimposed on trends rather than stationary means. Paleobiological data from the youngest sedimentary record, including death assemblages ...

more

In vivo characterization of chronic traumatic encephalopathy using [F-18]FDDNP PET brain imaging [Medical Sciences]

21-Apr-2015 | Jorge R. Barrio; Gary W. Small; Koon-Pong Wong; Sung-Cheng Huang; Jie Liu; David A. Merrill; Christopher C. Giza; Ro ..., Proceedings of the National Academy of Sciences current issue, 2015

Chronic traumatic encephalopathy (CTE) is an acquired primary tauopathy with a variety of cognitive, behavioral, and motor symptoms linked to cumulative brain damage sustained from single, episodic, or repetitive traumatic brain injury (TBI). No definitive clinical diagnosis for this condition ...

more

Ideal probe single-molecule experiments reveal the intrinsic dynamic heterogeneity of a supercooled liquid [Chemistry]

21-Apr-2015 | Keewook Paeng; Heungman Park; Dat Tien Hoang; Laura J. Kaufman, Proceedings of the National Academy of Sciences current issue, 2015

The concept of dynamic heterogeneity and the picture of the supercooled liquid as a mosaic of environments with distinct dynamics that interchange in time have been invoked to explain the nonexponential relaxations measured in these systems. The spatial extent and temporal persistence of these ...

more

Endothelin-1 critically influences cardiac function via superoxide-MMP9 cascade [Medical Sciences]

21-Apr-2015 | Catherine K. Hathaway; Ruriko Grant; John R. Hagaman; Sylvia Hiller; Feng Li; Longquan Xu; Albert S. Chang; Victoria ..., Proceedings of the National Academy of Sciences current issue, 2015

We have generated low-expressing and high-expressing endothelin-1 genes (L and H) and have bred mice with four levels of expression: L/L, ∼20%; L/+, ∼65%; +/+ (wild type), 100%; and H/+, ∼350%. The hypomorphic L allele can be spatiotemporally switched to the hypermorphic H allele by Cre-loxP ...

more

PLZF expression maps the early stages of ILC1 lineage development [Immunology and Inflammation]

21-Apr-2015 | Michael G. Constantinides; Herman Gudjonson; Benjamin D. McDonald; Isabel E. Ishizuka; Philip A. Verhoef; Aaron R. D ..., Proceedings of the National Academy of Sciences current issue, 2015

Among the variety of tissue-resident NK-like populations recently distinguished from recirculating classical NK (cNK) cells, liver innate lymphoid cells (ILC) type 1 (ILC1s) have been shown to represent a distinct lineage that originates from a novel promyelocytic leukaemia zinc finger ...

more

Neither chimpanzee nor human, Ardipithecus reveals the surprising ancestry of both [Biological Sciences]

21-Apr-2015 | Tim D. White; C. Owen Lovejoy; Berhane Asfaw; Joshua P. Carlson; Gen Suwa, Proceedings of the National Academy of Sciences current issue, 2015

Australopithecus fossils were regularly interpreted during the late 20th century in a framework that used living African apes, especially chimpanzees, as proxies for the immediate ancestors of the human clade. Such projection is now largely nullified by the discovery of Ardipithecus. In the ...

more

Base-enhanced catalytic water oxidation by a carboxylate-bipyridine Ru(II) complex [Chemistry]

21-Apr-2015 | Na Song; Javier J. Concepcion; Robert A. Binstead; Jennifer A. Rudd; Aaron K. Vannucci; Christopher J. Dares; Michae ..., Proceedings of the National Academy of Sciences current issue, 2015

In aqueous solution above pH 2.4 with 4% (vol/vol) CH3CN, the complex [RuII(bda)(isoq)2] (bda is 2,2′-bipyridine-6,6′-dicarboxylate; isoq is isoquinoline) exists as the open-arm chelate, [RuII(CO2-bpy-CO2−)(isoq)2(NCCH3)], as shown by 1H and 13C-NMR, X-ray crystallography, and pH titrations. ...

more

Sterile inflammation in the spleen during atherosclerosis provides oxidation-specific epitopes that induce a protective B-cell response [Immunology and Inflammation]

21-Apr-2015 | Emilie K. Grasset; Amanda Duhlin; Hanna E. Agardh; Olga Ovchinnikova; Thomas Hägglöf; Mattias N. Forsell; Gabrielle ..., Proceedings of the National Academy of Sciences current issue, 2015

The B-cell response in atherosclerosis is directed toward oxidation-specific epitopes such as phosphorylcholine (PC) that arise during disease-driven oxidation of self-antigens. PC-bearing antigens have been used to induce atheroprotective antibodies against modified low-density lipoproteins ...

more

Page 1 From 1676
Subscribe to e-mail updates relating to your search

You will receive via e-mail the latest search results matching your search criteria. This service is free of charge and can be cancelled at any time.

Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE