the objective of the present study is to develop and investigate the swelling behavior of ph-sensitive superporous hydrogel (sph) and sph composite (sphc). a novel superporous hydrogel containing poly (methacrylic acid-co-acrylamide) was synthesized from methacrylic acid and acrylamide through the aqueous solution polymerization, using n,n-methylenebisacrylamide as a crosslinker and ammonium pe...

semen analysis, sperm dna fragmentation (sdf) and hypo-osmotic swelling test (host) are usually performed for the evaluation of sperm fertilizing ability. there are some debates over the necessity of sdf and host incorporation in male infertility work-up.semen of 77 men was evaluated by sdf and host through three semen analyses. sperm parameters were arranged into different categories: < 5%, 5-...

the transport properties of liquids and gases through polymeric materialsplay a very important role in some areas of industrial applications. in thisstudy, natural rubber (nr)/caco3 composites were prepared by melt mixingmethod. by equilibrium swelling test, the transport process of toluene in the prepared natural rubber composites was investigated. the diffusion and transport of toluene throug...

ABSTRACT Partial pulpotomy is a treatment method used to reach healthy pulp tissue by removal of the inflamed in 1-3 mm depth from caries exposed teeth. Pulpal bleeding should be controlled using bactericidal agents, such as sodium hypochlorite or chlorhexidine, and then covered with biocompatible material, MTA. MTA placed on area surrounding dentate thickness at least 1.5 resin modified glass ...

background: recurrent abortion is defined as three or more consecutive pregnancy losses. we aimed to determine the relationship between male sperm parameters and hypo-osmotic swelling score and recurrent abortion. we also studied whether washing of spermatozoa and intrauterine insemination in patients with recurrent miscarriage and low score hypo-osmotic swelling test in male partners could imp...

Summary Fracturing fluid diversion plays a crucial role in maximizing the well productivity of multistage fractured wells. Proper sizing and material design diverting agents are key elements to effectively bridge plug perforations fractures during treatment. In this study, we present an improved for water-soluble agent that can cover range fracture widths. addition, wellbore flow model predicts...

Resistance to chemotherapeutic agents in neoplastic cells is often mediated by expression of P-glycoprotein, which functions as a drug-efflux pump for a broad range of substrates. We have used a combination of patch clamp and video-imaging techniques to examine the expression and drug-efflux function of P-glycoprotein and to determine the possible correlation with swelling-activated chloride ch...

A wide array of pathogenic factors has been associated with lacrimal drainage system obstruction including inflammatory conditions originating from the eye, conjunctiva, lacrimal mucosa, nose and paranasal sinuses; trauma; congenital abnormalities; radiotherapy and neoplasms. Inflammatory conditions initially cause lac-rimal mucosal swelling but may lead to fibrotic narrowing or obstruction of ...

pachydermodactyly is a rare and benign disease that may be idiopathic, genetic, acquired as a response to repetitive trauma, or associated with several other acquired conditions often pushing the health caregiver to do a bunch of costly lab tests and diagnostic workups to rule out other entities. all health care givers must be aware about this disease for reassure the patients and cut unnecessa...