Perturbation techniques are frequently used in the study of nonlinear dynamical systems, in particular, for bifurcation and stability analyses. In this paper, four most popular perturbation methods – Lindstedt-Poincaré (LP) approach, timeaveraging (TA), multiple time scales (MTS) and the intrinsic harmonic balancing (IHB) – are particularly considered to compare their accuracy of the bifurcatio...

STIS has been operating without major changes in its performance since the release of the STIS Instrument Handbook (IHB) version 4.1. This update provides the latest information regarding STIS performance and policies which are relevant to the preparation of Cycle 10 Phase II proposals. The items presented here may also be found on the STIS web page at http://www.stsci.edu/instruments/stis. As ...

A theoretical exploration about hydrogen bonding in a series of synthetic regioisomeric antitumor tricyclic hydroquinones is presented. The stabilization energy for the intramolecular hydrogen bond (IHB) formation in four structurally different situations were evaluated: (a) IHB between the proton of a phenolic hydroxyl group and an ortho-carbonyl group (forming a six-membered ring); (b) betwee...

The purpose of this study is to clarify the effect of direct-interrupting surgery on gastric mucosal congestion in patients with esophageal varices. Fifteen such patients underwent endoscopy in the preoperative, early postoperative and late postoperative periods. The index of local blood volume (lHb) and that of oxygen saturation (1802) were endoscopically measured using a tissue reflectance sp...

BACKGROUND Chronic hepatitis B (CHB) is a global health problem that can result in serious complications associated with collagen degradation. Prolidase is a specific imidodipeptidase that plays an important role in the breakdown of collagen. The aim of this study was to investigate prolidase activity and oxidant-antioxidant status in children with CHB. METHODS This prospective case control s...

Analysis of mononuclear cells in the adult mouse liver revealed that B cells represent as much as half of the intrahepatic lymphocyte population. Intrahepatic B cells (IHB cells) are phenotypically similar to splenic B2 cells but express lower levels of CD23 and CD21 and higher levels of CD5. IHB cells proliferate as well as splenic B cells in response to anti-IgM and LPS stimulation in vitro. ...

Abstract. Since workers are increasingly suffering from burnout, there is a need for insights into how burnout can be decreased to improve subjective well-being. The broaden-and-build theory proposes that gratitude increases well-being through an upward spiral. Few studies have examined whether decreases and what mediating behaviors explain this relationship. Using international sample of emplo...

Paenibacillus sp. strain IHB B 3415 is a cellulase-producing psychrotrophic bacterium isolated from a soil sample from the cold deserts of Himachal Pradesh, India. Here, we report an 8.44-Mb assembly of its genome sequence with a G+C content of 50.77%. The data presented here will provide insights into the mechanisms of cellulose degradation at low temperature.