introduction: the aim of this study was to evaluate the effect of sperm protamine deficiency on fertilization and embryo development post icsi. material and methods: semen samples from 27 patients candidate for icsi were assessed for semen parameters. sperm processing was carried out using pure sperm and percentage of protamine deficient sperm was assessed by chromomycin a3 post processing. cor...

introduction: effective durable adhesion between post material and dentine using resin cements is essential for longevity of restoration. the aim of this in vitro study was to compare the effect of different irrigants on smear layer removal after post space preparation. methods and materials: a total of 75 extracted anterior human teeth were selected. the canals were instrumented by rotary syst...

introduction: tonsillectomy is one of the most common surgeries in the world and the most common problem is post-tonsillectomy pain and bleeding. the relief of postoperative pain helps increase early food intake and prevent secondary dehydration. one method for relieving pain is peritonsillar injection of epinephrine along with an anesthetic, which has been shown to produce variable results in ...

introduction: to evaluate the effect of electroactivation on fertilization and embryo development up to 8-cell stage, after intracytoplasmic injection of severely amorphous sperm. material and methods: oocytes (168) from 13 patients with severe- teratospermia undergoing icsi were divided into control (83) and electro activation (85) groups. in the latter group, oocytes were electrically activat...

introduction: we investigated the difference in left ventricular ejection fraction (lvef) and end-systolic volume(esv) measured by gated myocardial perfusion spect (gspect) in the post-dipyridamole stress and rest periods, and compared the results with the perfusion patterns found in the conventional non-gated tomograms. methods: 297 consecutive patients were studied with post-stress and rest 9...

introduction: laser surgery as an alternative for conventional surgical procedure has gained special attention. using carbon dioxide (co2) laser has some benefits like less post-operative pain, swelling and infection, decrease in risk of metastasis and edema, and less bleeding providing dry sites for surgery. case report: a 12 years old boy with lingual frenum with indication for excision was r...

Introduction: The restoration material commonly used as core material for pulpless posterior teeth is mostly amalgam due to its high strength and low cost and it can be used with or without pin. The aim of this study was to evaluate the influence of post material on stress distribution in mandibular second premolar tooth by finite element analysis. Method: The stress distribution was analyzed i...

research related to colonialism and post colonialism shows how the identities of indigenous people were constructed and how these identities are reconstructed in our contemporary world. the thrust of this paper is that colonialism brought a shift in the linguistic structure of ghana with the introduction of the use of english among ghanaians. the coexistence of both ghanaian languages and engli...