NEUROSCIENCE Correction for “Mars 520-d mission simulation reveals protracted crew hypokinesis and alterations of sleep duration and timing,” by Mathias Basner, David F. Dinges, Daniel Mollicone, Adrian Ecker, Christopher W. Jones, Eric C. Hyder, Adrian Di Antonio, Igor Savelev, Kevin Kan, Namni Goel, Boris V. Morukov, and Jeffrey P. Sutton (first published January 7, 2013; 10.1073/ pnas.121264...

Ecker, R. E. (Iowa State University, Ames), and W. R. Lockhart. Relationships between initial nutrient concentration and total growth. J. Bacteriol. 82:80-84. 1961.-The relationship observed between maximal attainable growth in a microbial population and initial concentration of limiting nutrient depends upon the parameter selected for measurement of growth. A linear relationship is found only ...

NEUROSCIENCE Correction for “Mars 520-d mission simulation reveals protracted crew hypokinesis and alterations of sleep duration and timing,” by Mathias Basner, David F. Dinges, Daniel Mollicone, Adrian Ecker, Christopher W. Jones, Eric C. Hyder, Adrian Di Antonio, Igor Savelev, Kevin Kan, Namni Goel, Boris V. Morukov, and Jeffrey P. Sutton (first published January 7, 2013; 10.1073/ pnas.121264...

NEUROSCIENCE Correction for “Mars 520-d mission simulation reveals protracted crew hypokinesis and alterations of sleep duration and timing,” by Mathias Basner, David F. Dinges, Daniel Mollicone, Adrian Ecker, Christopher W. Jones, Eric C. Hyder, Adrian Di Antonio, Igor Savelev, Kevin Kan, Namni Goel, Boris V. Morukov, and Jeffrey P. Sutton (first published January 7, 2013; 10.1073/ pnas.121264...

NEUROSCIENCE Correction for “Mars 520-d mission simulation reveals protracted crew hypokinesis and alterations of sleep duration and timing,” by Mathias Basner, David F. Dinges, Daniel Mollicone, Adrian Ecker, Christopher W. Jones, Eric C. Hyder, Adrian Di Antonio, Igor Savelev, Kevin Kan, Namni Goel, Boris V. Morukov, and Jeffrey P. Sutton (first published January 7, 2013; 10.1073/ pnas.121264...

Plants use the gas ethylene (C2H4) as a signaling molecule for regulating a variety of developmental processes, including fruit and flower senescence, sex determination in some monoecious species, cell elongation and pathogen responses [1]. The final reactions of the ethylene biosynthetic pathway have been elucidated [2], and information on its signaling apparatus is beginning to emerge [3,4]. ...

Complications of basilar skull fracture, such as carotid cavernous fistulae, meningitis, cerebrospinal fluid rhinorrhoea and otorrhoea, pneumatocele, and various cranial nerve disturbances, are well known (Gurdjian and Webster, 1958). In -addition, unilateral thrombosis of the internal carotid artery, both with and without basilar skull fracture, has frequently been reported after closed head a...

5,981,180 A 11/1999 Chandleret a1. 6,046,807 A 4/2000 Chandler 6,139,800 A 10/2000 Chandler 6,268,222 B1 7/2001 Chandleret a1. 6,366,354 B1 4/2002 Chandler 6,449,562 B1 9/2002 Chandler et a1. 6,514,295 B1 2/2003 Chandleret a1. 6,524,793 B1 2/2003 Chandleret a1. 6,592,822 B1 7/2003 Chandler 6,599,331 B2 7/2003 Chandleret a1. 6,632,526 B1 10/2003 Chandler 6,649,414 B1 11/2003 Chandler et a1. 6,69...

The induction of oocyte maturation is known to involve an initial action of agonists at the oocyte surface. This leads to activation of a cytoplasmic maturation-promoting factor (MPF) which induces the observable events associated with maturation (reviews by Smith and Ecker, 1970; Smith, 1975; Wasserman and Smith, 19786; Baulieu et al. 1978; Masui and Clark, 1979; Mailer and Krebs, 1980; Mailer...