Proceedings of the National Academy of Sciences current issueProceedings of the National Academy of Sciences RSS feed -- current issueMicrobiology Deciphering the genetic determinants for aerobic nicotinic acid degradation: The nic cluster from Pseudomonas putida KT2440- August 12, 2008 The aerobic catabolism of nicotinic acid (NA) is considered a model system for degradation of N-heterocyclic aromatic compounds, some of...http://www.pnas.org/cgi/content/short/105/32/11329?rss=1 Psychology Statistical analysis of the National Institutes of Health peer review system- August 12, 2008 <p>A statistical model is proposed for the analysis of peer-review ratings of R01 grant applications submitted to the National Institutes...http://www.pnas.org/cgi/content/short/105/32/11076?rss=1 Medical_Sciences Tumor-derived endothelial cells exhibit aberrant Rho-mediated mechanosensing and abnormal angiogenesis in vitro- August 12, 2008 <p>Tumor blood vessels exhibit abnormal structure and function that cause disturbed blood flow and high interstitial pressure, which impair delivery...http://www.pnas.org/cgi/content/short/105/32/11305?rss=1 Geophysics From the Cover: Fluid helium at conditions of giant planetary interiors- August 12, 2008 <p>As the second most-abundant chemical element in the universe, helium makes up a large fraction of giant gaseous planets, including...http://www.pnas.org/cgi/content/short/105/32/11071?rss=1 Immunology Evasion of peptide, but not lipid antigen presentation, through pathogen-induced dendritic cell maturation- August 12, 2008 <p>Dendritic cells (DC) present lipid and peptide antigens to T cells on CD1 and MHC Class II (MHCII), respectively. The...http://www.pnas.org/cgi/content/short/105/32/11281?rss=1 Engineering Large-scale, heterogeneous integration of nanowire arrays for image sensor circuitry- August 12, 2008 <p>We report large-scale integration of nanowires for heterogeneous, multifunctional circuitry that utilizes both the sensory and electronic functionalities of single...http://www.pnas.org/cgi/content/short/105/32/11066?rss=1 Evolution Novelties of the flowering plant pollen tube underlie diversification of a key life history stage- August 12, 2008 <p>The origin and rapid diversification of flowering plants has puzzled evolutionary biologists, dating back to Charles Darwin. Since that time...http://www.pnas.org/cgi/content/short/105/32/11259?rss=1 Neuroscience From the Cover: Loss of PINK1 causes mitochondrial functional defects and increased sensitivity to oxidative stress- August 12, 2008 <p>Parkinson's disease (PD) is a common neurodegenerative disorder thought to be associated with mitochondrial dysfunction. Loss of function mutations in...http://www.pnas.org/cgi/content/short/105/32/11364?rss=1 |