to investigate the patterns of dna ploidy and proliferating activity in breast cancer and relate them to other prognostic factors, paraffin blocks of 53 cases of breast carcinoma were studied. cancer cells obtained by mechanical tissue disaggregation were examined for dna content, ploidy and s-phase fraction. dna assay was done using a cas interactive image analyzing system. all of the cases sh...

conclusion the cv value correlated more closely with low lvef and more accurately indicated an enlarged heart than ca or ctr. this may be due to the fact that an anteroposterior measurement of heart size is included in the former but not the latter two measurements. these study results may help quantify left heart enlargement with greater accuracy than may be obtained from standard cxr. backgro...

in this article cuo/water nanofluid was synthesized by using polyvinylpyrolidone (pvp) as the dispersant.  thenanofluid stability period and the heat transfer enhancement were determinedby measuring the thermal conductivities. to study the nano-fluid stability, zeta (ζ) potential, and absorbency were measured under different ph values and pvp surfactant concentrations; also thermal conductivity...

the aim of this study was to assess the effect of spinal block with low dose of bupivacaine and sufentanil on patients with low cardiac output who underwent lower limb surgery. fifteen patients who had ejection fraction less than 40% (group 1) were compared with 65 cases with ejection fraction more than 40% (group 2) in our study. our subjects underwent spinal block with 7.5 mg hyperbaric bupiv...

this paper is about concept maps and how they can assist in the learning ofconcepts of mathematics. first the paper presents the theoretical backgroundand working denitions for concept maps. then this study examines the impactof using concept maps in learning of fractions. results of this study indicatedthat using this strategy was eective in learning of fractions for fourth-gradestudents. th...

dianchi lake is one of the most three seriously eutrophic lakes in china. in the present study, the phosphorus (p) and nitrogen (n) fractions in 37 surface sediments samples collected in the dianchi lake were investigated. the total phophorus (tp) in sediments was divided into two parts: inorganic p (ip) and residual p (res-p). the results showed that the total phosphorus content in surface se...

background: the thyroid gland absorbs nearly all the iodine in the blood, independently of its isotopic composition. when a large enough activity of radioactive iodine like 131i, 132i, 133i is taken into the body, it can destroy the healthy thyroid gland cells as well as the cancer’s cells. in fact, as it is well known, some isotopes of iodine are used not only for acquiring thyroid images but ...

introduction: coronary artery bypass graft can improve myocardial contractility and functional class in ischemic heart disease. materials & methods: this study was done on 200 patient’s with cabg operation during 6 months. 142 patients were men and 56 patients were women with mean age 57.7  9.2 years (36-83). ef was measured by echocardiography before & 1 week after cabg, ccsfc evaluated befor...

background: serological diagnosis of toxoplasma gondii infection using crude antigens may not be more accurate. to increase the diagnostic potency of anti-gens, isolation of their immunogenic fractions could be useful. the current re-search adopted to obtain an affinity isolated fraction from rh strain using cnbr sepharose 4b column coupled with infected mice sera helping in detec-tion of igm a...