background: visceral leishmaniasis is systematic serous parasitic disease with pub­lic health importance. zoonotic form of visceral leishmaniasis is wide spread in mediterranean basin and south america regions. direct agglutination test (dat) is an accurate, reliable and non-expensive serological test for the diagnosis of visceral leishmaniasis in human and canines but the antigen preparation i...

b a ckground: a two year seroepidemiological study was designed to find out the seroprevalence and risk factors ofcanine visceral leishmaniasis (cvl) among stray and owned dogs in tehran and alborz provinces of iran. me t hods: blood samples of  602 dogs living in  11  counties of  tehran and  alborz  provinces were  taken by venipuncture in 2008–2010. after separation of blood sera, anti-leish...

background: respiratory problem is one of the major health hazards in dust-exposed workers; it is a major cause of morbidity and mortality all over the world. objective: to determine the prevalence of respiratory problems and lung function impairment among quarry workers in ebonyi state, nigeria. methods: respiratory problems and lung function were studied in 403 quarry workers aged 10–60 years...

i ntroduction: the aim of this study was to evaluate the clinical and histological status of the pulp in sound human premolars after direct pulp capping (dpc) with four different dpc methods/materials. methods and materials: this study was conducted on eight volunteers who had to extract four first premolars due to orthodontic treatment. subsequent to tooth isolation, standardized class i occlu...

This research study employed a mixed-methods approach to investigate the test takers’ perceptions and anx- iety in relation to an English language proficiency test called Community English Program (CEP). This study also evaluated the direct and semi-direct modes for speaking module of this test. To this end, 300 Eng- lish as Foreign Language (EFL) students were recruited in the study as test ta...

ansi/ashrae 110-95 protocol is a widely acceptable method to assess the performance of laboratory hoods. in this test, sulfur hexafluoride (sf6) is applied as a tracer gas to quantitatively evaluate the performance of laboratory hoods. the environmentally hostile characteristics of sf6 as well as its cost are the major concerns. in the present study, the substitution of ethylene with sf6 in the...

b ackground: mediterranean type of visceral leishmaniasis (vl) is present in different parts of iran. several studies have identified dogs as the main reservoirs of the vl caused by leishmania infantum in iran and other mediterranean regions. this study aimed to determine the seroprevalence of canine visceral leishmaniasis as animal reservoir host for human visceral leishmaniasis in boyer ahmad...

this research study employed a mixed-methods approach to investigate the test takers’ perceptions and anx- iety in relation to an english language proficiency test called community english program (cep). this study also evaluated the direct and semi-direct modes for speaking module of this test. to this end, 300 eng- lish as foreign language (efl) students were recruited in the study as test ta...

background: visceral leishmaniasis (vl), caused by leishmania infantum , is a life-threatening vector-borne parasitic disease is distributed in some parts of the world. the disease is endemic in some parts of iran. this study was aimed to determine the seroprevalence of vl among children and domestic dogs (as a reservoir of the parasite) in dehloran, west of iran material and methods: this cros...