BACKGROUND Sodium hypochlorite (bleach) solutions are widely used as irrigants in endodontics. Their tendency to deteriorate is worsened by environmental influences which could cause loss of available chlorine content. METHODS This study measured the loss of available chlorine concentration in a range of sodium hypochlorite solutions under conditions which mimic clinical usage and storage. Do...

Experiments were conducted with a bipartite field to better understand the Bezold-Brücke hue shift in the peripheral retina. The first experiment measured hue shift in the fovea and at 1 degrees and 8 degrees along the horizontal meridian of the nasal retina for nominal test wavelengths of 430, 450, 490, 520 and 610 nm. Peripheral measurements were obtained under two adaptation conditions: afte...

Garments washing is a novel process to impart worn-out look, to modify the appearance and to improve the comfort ability of the garments. Bleach wash is used to fade the color of denim in a higher degree as well as bleach wash has effect on the physical and mechanical properties of the denim also. This paper presents the impact of bleach wash and subsequent softening treatment on 100% cotton de...

Background and aims: Tubercular lymphadenitis (TBL) is most common form of extrapulmonary tuberculosis both in children and adults. Acid fast bacilli (AFB) positivity in fine needle aspiration cytology (FNAC) specimens is low; culture is time consuming and has limited availability; and newer molecular methods are costly and availability is limited. Improvement in microscopy, such as bleach meth...

Chlorine bleach or sodium hypochlorite can inactivate common indoor allergens. In this cross-sectional study we evaluated to what extent regular house cleaning with bleach can influence the risks of respiratory and allergic diseases in children. We studied a group of 234 schoolchildren aged 10-13 yr among whom 78 children were living in a house cleaned with bleach at least once per week. Childr...

INTRODUCTION In Ethiopia, the most widely used disinfectant is 5% Hypochlorites. However, Ethiopian national health safety and infection prevention guideline recommendation on the use of bleach is not consistent and varying from 0.1%-4%. The purpose of this study was therefore to assess the effective time-concentration relationship of sodium hypochlorite against Mycobacterium tuberculosis compl...

SETTING Mawenzi Regional Hospital, northern Tanzania. OBJECTIVE To determine the value of light-emitting diode (LED) microscopy in diagnosing tuberculosis (TB) on bleach-treated and direct sputum smears. DESIGN Sputum samples were collected from patients suspected of pulmonary TB who presented consecutively at the laboratory for smear evaluation between December 2009 and February 2010. Fou...

Obtaining quantitative kinetic parameters from fluorescence recovery after photobleaching (FRAP) experiments generally requires a theoretical analysis of protein mobility and appropriate solutions for FRAP recovery derived for a given geometry. Here we provide a treatment of FRAP recovery for a molecule undergoing a combined process of reversible membrane association and lateral diffusion on th...