نتایج جستجو برای: parasitic current
تعداد نتایج: 807654 فیلتر نتایج به سال:
This is the introductory volume in an annual series on infectious disease and therapy, edited by Brian E. Scully and Harold C. Neu. This first volume addresses diseases caused by the parasitic organisms of major clinical importance in the United States, with an emphasis on infections in immunocompromised hosts. The book does not address the clinical aspects of parasitic infections seen in prima...
background: protozoa are common in poultry and otherbirds and can cause mild to severe disease. objectives: thisstudy was concerned with the prevalence of parasitic protozoa inwild waterfowl in caspian sea lagoons in the north of iran.methods:atotal of 293 waterfowl belonging to various generaincluding tadorna tadorna (common shelduck),aythya fuligula(tufted duck), aythya ferina (common puchard...
In this paper, four new voltage-mode first-order all pass filters are proposed. Each circuit employs two differential difference current conveyors (DDCC) and two passive components with no matching condition. The proposed circuits offer high-input and low-output impedance, low active and passive sensitivities, which is a desirable feature for the voltagemode systems. Non-ideal analysis and para...
A new mixed-mode second order quadrature oscillator using two differential voltage current conveyors as active elements, two grounded capacitors and two grounded resistors each is proposed. The circuit provides several current and voltage outputs simultaneously. The circuit has low active and passive sensitivities. Non-ideal and parasitic study of the proposed circuit is also included. PSPICE s...
examination of faecal samples of 6,430 school children aged between 2 and 20 years, for gastrointestinal parasites using sedimentation and kato smear techniques was carried out in benin city, nigeria between january 1997 and december 1998. four thousand two hundred and thirty six (65.8%) were infected. three species of protozoa and 8 species of helminths were recorded as follows: entamoeba hist...
background: knowledge about the amphistomid fauna in iranian domestic ruminants depends on the studies conducted almost 30 years ago. the last situation in cattle is introduced here in the provinces in south coast of caspian sea. methods: amphistomid species were collected from cattle at slaughter houses of the provinces gilan and mazanderan in 2010. median sagittal sections were prepared by th...
background: helicobacter pylori is a common cause of chronic infection in human beings. the infection has universal prevalence and contracts all age groups. probably, these bacteria are the cause of the most common chronic bacterial infection in man and have infected approximately half of the world population. the urease of these bacteria degrades the urea in stomach’s mucosa to ammoniac which ...
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