We discuss the Hamiltonian for a nonrelativistic electron with spin in the presence of an abelian magnetic monopole and note that it is not self-adjoint in the lowest two angular momentum modes. We then use von Neumann’s theory of self-adjoint extensions to construct a self-adjoint operator with the same functional form. In general, this operator will have eigenstates in which the lowest two an...

We hereby derive the Newtonian metric potentials for fourth-derivative gravity including one-loop logarithm quantum corrections. It is explicitly shown that behavior of modified potential near origin improved respect to classical one, but this not enough remove curvature singularity in $r=0$. Our result grounded on a rigorous proof based numerical and analytic computations.

Abstract. We analyze the effective potential for nanoparticles trapped at a fluid interface within a simple model which incorporates surface and line tensions as well as a thermal average over interface fluctuations (capillary waves). For a single colloid, a reduced steepness of the potential well hindering movements out of the interface plane compared to rigid interface models is observed, and...

Journal of The College of Physicians and Surgeons Pakistan 2008, Vol. 18 (1): 64-65 Blood pressure levels and BMI values were compared between children (8-16 years old) of hypertensive and normotensive parents. Children of hypertensive parents (n=97) were found to have significantly higher mean Systolic Blood Pressure (mSBP), mean Diastolic Blood Pressure (mDBP) and BMI as compared to children ...

JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected].. Association for Symbolic Logic is collaborating with JSTO...

Brains are the centers of the nervous system of animals, controlling the organ systems of the body and coordinating responses to changes in the ecological and social environment. The evolution of traits that correlate with cognitive ability, such as relative brain size is thus of broad interest. Brain mass relative to body mass (BM) varies among mammals, and diverse factors have been proposed t...

Purpose: Higher loading rates have been associated with injuries, plantar fasciitis, tibia bone stress injuries, knee osteoarthritis and PFP. The aim of this study is the evaluation of loading rate in PFP patients compared to healthy individuals during weight bearing tasks. Methods: Search strategy was conducted in databases: Science Direct, Scopus, PubMed and Google Scholar. The outcome measu...