We have investigated the temperature and pressure dependence of the threshold current ( th) of 1.3 m emitting GaInNAs vertical-cavity surface-emitting lasers (VCSELs) and the equivalent edge-emitting laser (EEL) devices employing the same active region. Our measurements show that the VCSEL devices have the peak of the gain spectrum on the high-energy side of the cavity mode energy and hence ope...

In the present paper, nonlinear radial and hoop thermoelastic stresses analysis of a disk made of FGMs material is investigated. According to this purpose, finite element method is used. In the present method, second-order one-dimensional element (with three node points) is proposed. The geometrical and stress boundary conditions are defined in the state of non-existence of external pressure an...

Partial functional dependencies, functional dependencies accompanied by a factor, are examined in a relational database based on or-sets. The partial functional dependencies are dealt with under tuples having their belongingness degree to a relation. Whether a functional dependency accompanied by a factor holds in a relation is determined by comparing the factor with to what degree the relation...

We have recently established a novel cell line, TF-1 , from bone marrow cells of a patient with erythroleukemia. that showed an absolute growth dependency on each of three hematopoietic growth factors: erythropoietin (EPO) granulocyte-macrophage colony-stimulating factor (GM-CSF), and interleukin 3 (11-3). EPO stimulated the proliferation of TF-1 cells even at the physiologic concentration (0.0...

This paper describes two methods aimed at improving dead-reckoning accuracy with fiber optic gyroscopes (FOGs) in mobile robots. The first method is a precision calibration procedure for FOGs, which effectively reduces the ill-effects of non-linearity of the scale-factor and temperature dependency. The second method is the implementation of an indirect feedback Kalman filter that fuses the sens...

We report a thermo-optical bistability observed in silicon micro-cantilevers irradiated by laser beam with mW powers: reflectivity, transmissivity, absorption, and temperature can change factor of two between stable states for the same input power. The dependency absorption at origin results from interferences internal reflections cantilever thickness, acting as lossy Fabry-P\'erot cavity. A th...

This study investigated the mechanisms of platelet-activating factor (PAF)-induced angiogenesis in a mouse model of Matrigel implantation. PAF induced a doseand time-dependent angiogenic response. Inhibitors of nuclear factor (NF) B expression or action, including antisense oligonucleotides to the p65 subunit of NF B (p65 antisense) and antioxidants such as -tocopherol and N-acetyl-L-cysteine, ...

BACKGROUND In patients with acute stroke, increased body temperature is associated with large lesion volumes, high case fatality, and poor functional outcome. A 1 degrees C increase in body temperature may double the odds of poor outcome. Two randomized double-blind clinical trials in patients with acute ischemic stroke have shown that treatment with a daily dose of 6 g acetaminophen (paracetam...