نتایج جستجو برای: antimony

تعداد نتایج: 3783  

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2011
Satoshi Asaoka Yoshio Takahashi Yuusuke Araki Masaharu Tanimizu

It is very important to investigate antimony geochemical behavior in order to identify its source, or reveal contamination processes, since antimony and its compounds are considered to be pollutants of high priority by the Environmental Protection Agency of the United States (USEPA). However, the concentration of antimony in most geological samples is very low, and its stable isotope mass diffe...

2017
Mauricio Naoto Saheki Marcelo Rosandiski Lyra Sandro Javier Bedoya-Pacheco Liliane de Fátima Antônio Maria Inês Fernandes Pimentel Mariza de Matos Salgueiro Érica de Camargo Ferreira E Vasconcellos Sonia Regina Lambert Passos Ginelza Peres Lima Dos Santos Madelon Novato Ribeiro Aline Fagundes Maria de Fátima Madeira Eliame Mouta-Confort Mauro Célio de Almeida Marzochi Cláudia Maria Valete-Rosalino Armando de Oliveira Schubach

BACKGROUND Although high dose of antimony is the mainstay for treatment of American cutaneous leishmaniasis (ACL), ongoing major concerns remain over its toxicity. Whether or not low dose antimony regimens provide non-inferior effectiveness and lower toxicity has long been a question of dispute. METHODS A single-blind, non-inferiority, randomized controlled trial was conducted comparing high ...

Journal: :Water research 2008
Paul Westerhoff Panjai Prapaipong Everett Shock Alice Hillaireau

Antimony is a regulated contaminant that poses both acute and chronic health effects in drinking water. Previous reports suggest that polyethylene terephthalate (PET) plastics used for water bottles in Europe and Canada leach antimony, but no studies on bottled water in the United States have previously been conducted. Nine commercially available bottled waters in the southwestern US (Arizona) ...

Journal: :Archives of disease in childhood 2000
A Cullen B Kiberd D Devaney J Gillan P Kelehan T G Matthews P Mayne N Murphy M O'Regan W Shannon L Thornton

OBJECTIVES Raised concentrations of antimony have been found in infants dying of sudden infant death syndrome (SIDS). The presumed source of this antimony is toxic gases generated from fire retardants that are present in cot mattresses. The aim of this study was to determine the role of antimony in SIDS. DESIGN Samples of liver, brain, serum, and urine were collected from all patients dying f...

2009
Ross G. Cooper Adrian P. Harrison

CONTEXT This minireview describes the health effects of antimony exposure in the workplace and the environment. AIM To collate information on the consequences of occupational and environmental exposure to antimony on physiological function and well-being. METHODS The criteria used in the current minireview for selecting articles were adopted from proposed criteria in The International Class...

Journal: :The Journal of Experimental Medicine 1981
GS Drummond A Kappas

The ability of antimony and antimony-containing parasiticidal agents to enhance the rate of heme degradation in liver and kidney was investigated. Trivalent antimony was shown to be an extremely potent inducer of heme oxygenase, the initial and rate-limiting enzyme in heme degradation, in both organs, whereas the pentavalent form was a weak inducer of this enzyme. The ability of antimony to ind...

Journal: :Archives of disease in childhood 1997
C Dezateux H T Delves J Stocks A Wade L Pilgrim K Costeloe

OBJECTIVE To determine whether antimony may be detected in the urine during infancy and early childhood and its association with passive exposure to tobacco smoke, as assessed by urinary cotinine. DESIGN Analysis of spare aliquots of urine collected from infants participating in studies of respiratory function and passive smoking. Urinary antimony was assayed using inductively coupled plasma ...

2012
Saied Soflaei Abdolhossein Dalimi Fatemeh Ghaffarifar Mojtaba Shakibaie Ahmad Reza Shahverdi Mohsen Shafiepour

Visceral leishmaniasis is one of the most important sever diseases in tropical and subtropical countries. In the present study the effects of antimony sulfide nanoparticles on Leishmania infantum in vitro were evaluated. Antimony sulfide NPs (Sb(2)S(5)) were synthesized by biological method from Serratia marcescens bacteria. Then the cytotoxicity effects of different concentrations (5, 10, 25, ...

Journal: :Gut 1991
Y Vandenplas R Helven H Goyvaerts

Oesophageal pH monitoring data are influenced by numerous patient or technique related factors, or both. In this study, data recorded with glass microelectrodes or antimony electrodes, both with external cutaneous Ag/AgCl reference electrodes, connected to two different recording devices are compared. Pearson correlation coefficients regarding the reflux index (% of the investigation time with ...

Journal: :FEMS microbiology ecology 2003
Christine Picard Marco Bosco

Abstract A total of 4512 rhizobacteria were isolated at three stages of plant growth from Achillea ageratum colonizing a polluted site with an antimony concentration gradient. For 222 of these isolates auxin production (aux(+)) was verified in vitro. The percentage of aux(+) isolates increased with soil antimony concentration, as well as with plant growth stage. An amplified rDNA restriction an...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید