Recently, natural resources economists have turned to valuation and appraisal of the contribution of natural resources to human’s welfare and they have made striking progress in valuing the environmental and ecological services of eco-systems. The present study investigated people’s willingness to pay (WTP) for participation in preservation and reclamation of Abuzeidabad desert area through con...

background: pentoxifylline (px) prevents camp breakdown by inhibiting the activity of the camp-phosphatase and presumably, stimulates sperm motion. incubation with px causes hyperactivation of sperm, an important step in achieving fertilization, and leads to changes in membranes associated with sperm capacitation. objective: the purpose of this study was to examine the effects of pentoxifylline...

background: alveolar ridge preservation could be performed immediately following tooth extraction to limit dimensional changes of alveolar process due to bone resorption. the aim of this study was to compare the clinical and histologic outcomes of socket preservation using two different graft materials; deproteinized bovine bone mineral (dbbm) and demineralized freeze‑dried bone allograft (dfdb...

The following study aims to present a consistent framework for the sustainable development of the troglodyte village of Kandovan, taking into consideration the present situation of the village and the paramount importance of preserving its unique way of life with the ultimate goal of making efficient improvements on the living conditions of its inhabitants. Located in north-western Iran, this t...

recently, natural resources economists have turned to valuation and appraisal of the contribution of natural resources to human’s welfare and they have made striking progress in valuing the environmental and ecological services of eco-systems. the present study investigated people’s willingness to pay (wtp) for participation in preservation and reclamation of abuzeidabad desert area through con...

Background and Aims: Chemotherapy is utilized as a part of combined-modality programs to achieve organ preservation and improve survival in patients with locally advanced head and neck cancer. Combinedmodality protocols can be used in three forms: a) neoadjuvant induction chemotherapy before definitive surgery or radiotherapy; b) concomitant chemoradiotherapy; and c) sequential therapy consisti...

maintaining deciduous teeth in function until their natural exfoliation is absolutely necessary. vital pulp therapy (vpt) is a way of saving deciduous teeth. the most important factors in success of vpt are the early diagnosis of pulp and periradicular status, preservation of the pulp vitality and proper vascularization of the pulp. development of new biomaterials with suitable biocompatibility...

Background: In-situ preservation of cauda epididymal spermatozoa at -10 degree centigrade with electrolyte free media for obtaining maximum functional gametes than preservation at 5 degree centigrade. Materials and Methods: Electrolyte free media prepared with soybean lecithin-glycerol, Coenzyme Q10 - glycerol and soybean lecithin - Coenzyme Q10- glycerol were inoculated separately into ligated...

A purpose of Zagros forests preservation plan is to reduce degradation factors through empowering woodman beneficiaries and underdevelopment of rural forested areas which appear as scattered agronomies inside and in forest margins, trees cutting for power supply, trees cutting for hay supply or making coal in forested regions. Therefore, natural resources experts believe that, by creation or im...

to evaluate the effect of adding neoadjuvant chemotherapy to surgery and radiation therapy for locally advanced resectable oral cavity squamous cell carcinoma, 24 patients with t3 or t4a oral cavity squamous cell carcinoma were randomly assigned to surgery alone or docetaxel, cisplatin, and 5-fu (tpf) induction chemotherapy followed by surgery. all patients were planned to receive chemoradiothe...