نتایج جستجو برای: shell staining

تعداد نتایج: 128407  

1999
M. Payami

In the framework of spherical geometry for jellium and local spin density approximation, we have obtained the equilibrium rs values, r̄s(N, ζ), of neutral and singly ionized “generic” N -electron clusters for their various spin polarizations, ζ. Our results reveal that r̄s(N, ζ) as a function of ζ behaves differently depending on whether N corresponds to a closed-shell or an openshell cluster. Th...

2012
JUAN J. SOLER JESÚS M. AVILÉS ANDERS P. MØLLER JUAN MORENO

Recent evidence suggests that blue-green coloration of bird eggshells may be related to female and/or egg phenotypic quality, and that such colour may affect parental effort and therefore the nutritional environment of developing nestlings. Here we suggest that these relationships and the signal function of eggshell coloration would affect the outcome of coevolution between avian brood parasite...

Journal: :iranian journal of public health 0
aj abedi dept. of community medicine, jn medical college, aligarh muslim university, india z khan dept. of community medicine, jn medical college, aligarh muslim university, india n khalique dept. of community medicine, jn medical college, aligarh muslim university, india u fatima dept. of pathology, jn medical college, aligarh muslim university, india n afroz dept. of pathology, jn medical college, aligarh muslim university, india

background: lymphadenitis is a common form of extra-pulmonary tuberculosis. as in peripheral health centers, the facili­ties for histopathology and culture are lacking, material obtained by fine needle aspiration (fna) in suspected cases of tubercu­lar lymphadenitis (tbl) cid fast bacilli (afb) by ziehl neelson method as every designated micros­copy centre under revised national tuberculosis co...

Journal: :journal of research in medical sciences 0
parvin mahzouni associate professor, department of pathology, school of medicine, isfahan university of medical sciences, isfahan, iran mohsen jafari resident, department of pathology, school of medicine, isfahan university of medical sciences, isfahan, iran

background : cd117 is a thyrosin kinase receptor encoded by c-kit proto-oncogene. it is expressed during normal development in some tissues and also in a subset of neoplasia especially gastrointestinal stromal tumors   (gists). treatment with thyrosin kinase inhibitors (e.g., imatinib) is useful in cd117- positive gists. the goal of this study is to investigate the expression of cd117 in glial ...

Journal: :medical journal of islamic republic of iran 0
f sari aslani from the department of pathology, shiraz university of medical sciences, shiraz, i.r. iran. m salehi

argyrophilic staining of nucleolar organizer regions (agnor) has been considered to be useful in the diagnosis and prognostic evaluation of different cutaneous tumors. in order to evaluate the role of the agnor technique in discriminating aggressive from non-aggressive basal cell carcinoma (bcc), paraffin-embedded histologic sections from 30 cases of aggressive bcc (bcc2) and 30 cases of non-ag...

Journal: :acta medica iranica 0
m.r. arab t. talie-khoozani z. tabei t. taki

nucleolar organizer regions (nor) are defined as nucleolar components containing a set of argyrophilic proteins which are selectively stained by colloidal silver nitrate staining. although studies have shown that the number of nor dots or particles is directly related to the rapidity of cell proliferation in cancer cells, prognostic or diagnostic value of nor remains controversial. the aim of t...

Journal: :iranian journal of microbiology 0
h safdari microbiology research center and department of microbiology and virology ghaem medical center, mashhad university of medical sciences (mums), mashhad, iran. a sadeghi microbiology research center and department of microbiology and virology ghaem medical center, mashhad university of medical sciences (mums), mashhad, iran. k ghazvini microbiology research center and department of microbiology and virology ghaem medical center, mashhad university of medical sciences (mums), mashhad, iran. s mohammadi microbiology research center ghaem medical center, mashhad university of medical sciences (mums),mashhad, iran. mohammad derakhshan microbiology research center and department of microbiology and virology ghaem medical center, mashhad university of medical sciences (mums), mashhad, iran.

background: tuberculosis continues to be a serious public health problem causing nearly three million deaths per year all over the world. despite major improvement in diagnosis, it is not possible to control the disease in the absence of surveillance treatment, and follow-up programs. objectives: this research was designed to study the frequency of mycobacterium tuberculosis among specimens ref...

1997
B. HERYANTO

Induced molting improves egg producing functions in hens. We investigated the mechanism of oviducal regression during induced molting. Involvement of apoptosis and autolysis in the oviducal regression process was analyzed by terminal deoxynucleotidyl transferase (Tdt)-mediated biotinylated deoxyuridine triphosphates (dUTP) nick end-labeling (TUNEL) and an enzyme histochemistry for acid phosphat...

Journal: :journal of agricultural science and technology 2010
j. pourreza n. nili m. a. edriss

this experiment was carried out to study the effect of sodium chloride from drinking water and feed intake on the quality of egs from laying hens. four hundred and twenty native and white leghorn laying hens ranging from 36 to 43 weeks of age were used. seven experimental treatments containing different levels of salt supplied by feed and/or drinking water were compared. increasing salt int...

2016
Kaat Brulez Ivan Mikšík Christopher R. Cooney Mark E. Hauber Paul George Lovell Golo Maurer Steven J. Portugal Douglas Russell Silas James Reynolds Phillip Cassey

No single hypothesis is likely to explain the diversity in eggshell coloration and patterning across birds, suggesting that eggshell appearance is most likely to have evolved to fulfill many nonexclusive functions. By controlling for nonindependent phylogenetic associations between related species, we describe this diversity using museum eggshells of 71 British breeding passerine species to exa...

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