background : aids is acquired by infection with hiv (human immuno-deficiency virus). it leaves the host susceptible to malignant and unusual infections especially opportunistic ones. most of aids patients infected with opportunistic parasitic infections die because of chronic diarrhea and deaths due to cryptosporidium diarrhea in aids patients are considerable in the recent two decades. the aim...

background: to determine any correlation between infertility and semen quality with concentrations of l-carnitine in human seminal plasma. methods: this case-control study performed in fatemieh hospital in hamadan, iran. seminal plasma of 72 infertile men and 80 men with proved fertility as a control group was investigated and l-carnitine level was determined using uv enzymatic test at 340 nm. ...

background: automatic cell counter devises make the cbc differential very easy and delivering the results in few second. however, the problem with this device is facing a flag requires a time-consuming microscopic review of the specimen which causes unacceptable wait times for patient as well as costs for laboratories. in this study, we calculated the validity of wbc diff flags in sysmex xt-180...

background: this study was done to determine the prevalence of publication misconduct among iranian authors. methods: data were collected through an email survey of corresponding authors of papers published in iranian journals indexed in scopus during 2009-2011. using the double list experiment, these individuals were indirectly questioned about committing one of the five misconducts including ...

acorn production plays a fundamental role in the organization and dynamics of oak forest ecosystems. regarding acorn importance, visual survey methods have been used to estimate acorn production of oak species throughout the world. in this study, the mast indices of brant`s oak (quercus brantii lindl.) were determined in a section of northern zagros forests, almost 36 ha area, near baneh, kurdi...

We argue that what we count has a crucial impact on how count, to the extent even adults may have difficulty using elementary mathematical notions in concrete situations. Specifically, investigate use of certain types quantities (durations, heights, number floors) emphasize ordinality numbers featured problem, whereas other (collections, weights, prices) cardinality depicted numerical suggest t...