The use of space by predators in relation to their prey is a poorly understood aspect of predator-prey interactions. Classic theory suggests that predators should focus their efforts on areas of abundant prey, that is, prey hotspots, whereas game-theoretical models of predator and prey movement suggest that the distribution of predators should match that of their prey's resources. If, however, ...

We study the level and severity of asset poverty, the characteristics of asset-poor households, the trends and persistence of asset poverty, and the role of major lifetime events affecting transitions in and out of asset poverty. We find that, contrary to a sharp decline in the official measure of poverty, which is based on income, the asset poverty rate barely changed over the 1984–99 period a...

Demain, A. L. (Merck Sharp & Dohme Research Laboratories, Rahway, N.J.), I. M. Miller, and D. Hendlin. Production of extracellular guanosine-5'-monophosphate by Bacillus subtilis. J. Bacteriol. 88:991-995. 1964.-Wild-type Bacillus subtilis colonies were found to feed purineless mutants. A strain with high feeding capacity was selected for study, with a guanineless mutant of B. subtilis used as ...

We report high resolution simultaneous measurements of electrical conductance and force gradient between two sharp gold tips as their separation is varied from the tunneling distance to atomic-size contact. The use of atomically sharp tips minimizes van der Waals interaction, making it possible to identify the short-range metallic adhesion contribution to the total force.

Recently, BMI screening in public schools has stirred sharp controversy with the emergence of letters sent home to parents indicating their child’s BMI percentile and weight category. In Massachusetts, these letters have been deemed, “fat letters,” and have appeared on late night comedy shows, newspapers, and televised news reports. Not only has screening come under harsh criticism, but the inc...

Casimir limit Christophe Blanc, Ali Rajabpour, Sebastian Volz, Thierry Fournier, and Olivier Bourgeois Institut N EEL, CNRS-UJF, 25 avenue des Martyrs, 38042 Grenoble Cedex 9, France Department of Mechanical Engineering, Imam Khomeini International University, Qazvin 34149-16818, Iran Laboratoire d’Energ etique Mol eculaire et Macroscopique, Ecole Centrale Paris, Grande Voie des Vignes, Chatena...

1 Bu Ali Sina University, Hamedan, Iran 2 Research and Training Center of Imam Khomeini Hospital, Tehran, Iran 3 Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran 4 Mycology Research Center, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran 5 Faculty of Veterinary Medicine, Amol University of Special Modern Technologie...

In the present article we give geometric generalizations of the estimates from Chapters 5,6,7 from [4], while extending their sharpness to new cases.

1Department of Cardiovascular Surgery, Imam Ali Cardiovascular Centre, Kermanshah University of Medical Sciences, Kermanshah, Islamic Republic of Iran. 2Department of Pathology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Islamic Republic of Iran. 3Yazd Cardiovascular Research Centre, Shahid Sadoughi University of Medical Sciences, Yazd, Islamic Republic of Iran ...

ghadir is one of the main sources of inspiration for poets and writers in the history and many poets and poems written bits in this field have accused. each expresses his devotion to the holy shrine of imam ali. arabic poetry is not an exception. threads of ghadir  are, so vast that  it is not restricted to specific discussion or particular poet.given the great importance of the topic chosen an...