acrylamide was grafted in low density polyethylene during melt processing in the presence of a free radical initiator using a torque rheometer in a closed system. effects of processing time, acrylamide and benzoyl peroxide concentrations were studied. ftir studies revealed that the degree of grafting increased by an increase in acrylamide concentration. maximum grafting was obtained at 7 minute...

qct calculations were performed to study the behavior of energized nh2oh formed by association collision of nh2 radical with oh radical. a potential energy surface that describes the behavior of the title reaction has been constructed by interpolation of ab initio data. h2o, hon, hno, nh3, o, h2no, cis or trans-honh, and h products and two vibrationally energized nh2oh and nh3o adducts were obs...

antioxidants are vital substances which possess the ability to protect the body from damage caused by free radical induced oxidative stress. a variety of free radical scavenging antioxidants exist within the body which many of them are derived from dietary sources like fruits, vegetables and teas. in this study the antioxidant activity and radical scavenging activity of methanolic extracts of s...

the purpose of this study was to describe the feasibility of a combined preoperative chemoradiation program ib-iia, bulky and suspicious iib by radical surgery in patients with stage ib-iib cervical cancer. from september 1999 to april 2002, 30 patients with carcinoma of the cervix were treated with preoperative external beam radiotherapy of 45 gy in 5 weeks. patients received concurrent contin...

breast sarcomas have relatively been rare and accounted for 1% of all primary malignant tumors of the breast. pure and primary chondrosarcoma of the male breast would be an extremely rare tumor. it might arise either from the breast stroma itself, or from underlying bone or cartilage. a 65-year-old man has presented with a rapidly growing breast mass since 5 months. physical examination has est...

trichomoniasis, the most widespread sexually transmitted disease is caused by trichomonas vaginalis. this parasite is site specific for the genitourinary tract and recruitment of macrophages as well as polymorphonuclear nutrophils (pmn) to the site of infection is the first line of defense as a component of non-specific resistance and immunity. in this study, balb/c mice were infected with 10 i...

we evaluated the clinical experience of 120 women with early stage cervical cancer who underwent radical hysterectomy combined with pelvic lymphadenectomy (class iii rutledge) in our gynecologic oncology clinic. of these, 74 patient. (61.66%) were in stage i and 46 patients (38.34%) were in stage ii a. intraoperation complications comprised of great vessel injuries encountered in 4 (3.3%) patie...