Hence, there is an eigenstate |ψ〉 = A|φ〉 of H with this same energy eigenvalue. We could equally well have begun with the statement that H|ψ〉 = E|ψ〉 and then found a state of H given by |φ〉 = A†|ψ〉 with the same energy. Note that a Hamiltonian of the two given forms will have only non-negative eigenvalues: 〈ψ|A†A|ψ〉 = ∣∣|Aψ〉∣∣2 ≥ 0. Equality holds only if the state is annihilated by A. Analogou...

The authors would like to express their appreciation to the following people who contributed greatly to this project. Dr. Nathaniel Alpert, Ph.D., and associates of the Physics Research Division, Department of Radiology for the computer aspects of radionuclide imaging. Mr. William H. Shea, Jr., and Mr. Ronald J. Callahan of the Division of Nuclear Medicine, Department of Radiology, and the tech...

A novel platinum-mediated process involving intermolecular activation of a C(aryl)-H bond of toluene, intramolecular activation of an imine C(aryl)-Cl bond and formation of a C-C bond is reported.

Generation of azomethine imine and its scope in regioselective 1,3-dipolar cycloaddition (DC) of imine with PhIO toward highly substituted Delta(2)-1,2,4-triazoline, 1,2,4-triazole, and their fused, chiral, and sugar-based analogues are demonstrated.

During August 2000 at Lake Powell in the Glen Canyon National Recreation Area on the Arizona-Utah border, two brothers died of carbon monoxide (CO) poisoning as they swam near the stern of a houseboat while the onboard gasoline-powered generator was operating. As a result of these deaths, an investigation was initiated by the U.S. National Park Service (NPS) with assistance from the U.S. Depart...

Visual obstruction as a method to quantify herbaceous biomass in southern African semi-arid savannas Dave Joubert, Larkin A Powell & Walter H Schacht To cite this article: Dave Joubert, Larkin A Powell & Walter H Schacht (2015) Visual obstruction as a method to quantify herbaceous biomass in southern African semi-arid savannas, African Journal of Range & Forage Science, 32:3, 225-230, DOI: 10.2...

background: il-10 is an anti-inflammatory cytokine which is involved in tumorigenesis. over production of il-10 and elevated number of il-10 generating mononuclear cells in breast tumor tissue has already been shown. objective: to determine the association of il-10 promoter polymorphisms with increased risk of breast cancer and its association with breast cancer prognostic factors. methods: per...

aim : this study compared pr and nb in predicting hcv patient costs. the objective of this study was to predict the direct cost of the hcv patient in iran. background : hepatitis c virus (hcv) is a common and expensive infectious disease in iran. cost associated with hcv and its complications has not been well characterized. analysis of cost data is important in providing consistent information...