نتایج جستجو برای: amoeba
تعداد نتایج: 2812 فیلتر نتایج به سال:
The role of filaments in consistency changes and movement in a motile cytoplasmic extract of Amoeba proteus was investigated by correlating light and electron microscopic observations with viscosity measurements. The extract is prepared by the method of Thompson and Wolpert (1963). At 0 degrees C, this extract is nonmotile and similar in structure to ameba cytoplasm, consisting of groundplasm, ...
Background and Objective: Acanthamoeba is a free-living and opportunistic amoeba found in the water, soil, and air. This amoeba causes granulomatous amoebic encephalitis in the immunocompromised patients and amoebic keratitis in the people using contact lenses. The genotypes of Acanthamoeba are pathogenic and non-pathogenic. Regarding this, the present study aimed to determine the fre...
T H E manner of capture of rotifers and Paramecia by Amoeba has been thoroughly described by Mast and Root (1916). In connection with feeding on Paramecium, they noted that, while on some occasions Amoebae engulfed whole Paramecia, again they displayed a more striking food reaction fn that they cleaved the Paramecium in two by means of pseudopodial pressure and ingested only one-half. These aut...
This development raises the question of what kind of software will be needed for these new systems. To answer this question, a group under the direction of Prof. Andrew S. Tanenbaum at the Vrije Universiteit (VU) in Amsterdam (The Netherlands) has been doing research since 1980 in the area of distributed computer systems. This research, partly done in cooperation with the Centrum voor Wiskunde ...
عوامل مختلفی می توان باعث ایجاد اسهال خونی شود که از جمله آنها می توان از شیگلا، سالمونلا، پرسینیاانتروکولیتیکا، کمپیلوباکترژژونی، اشریشیاکلی مهاجم روده، ویبریوپا را همولیتیکوس، انتاموباهیستولیتیکا و غیره نام برد. راه دهانی-مدفوعی، یک راه عمده، در انتقال بسیاری از این بیماری هاست. بنابراین با رعایت بهداشت فردی و عمومی می توان از ایجاد بسیاری از این بیماریها جلوگیری نمود. از جمله می توان از شستش...
Legionella pneumophila, the causative agent of Legionnaires' disease, expresses a type IVB secretion apparatus that translocates bacterial proteins into amoeba and macrophage hosts. When stationary-phase cultures are used to infect hosts, the type IVB apparatus encoded by the icm/dot genes is required for entry, delay of phagosome-lysosome fusion, and intracellular multiplication within host ce...
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