نتایج جستجو برای: روش ارزشیابی مشروط cvm
تعداد نتایج: 373322 فیلتر نتایج به سال:
In a developing country such as India the contingent valuation method (CVM) cannot always provide a correct valuation of recreational use benefits of an environmental resource given the huge size of the parallel economy involving different categories of middle to upper income group families which have the capacity to move as tourists. The ‘participant observation method’ and ‘unstructured inter...
A female stillborn Holstein calf with shortened cervical and thoracic regions, protrusion of the tongue, and bilateral symmetric flexural contraction of the anterior limbs was delivered on gestation day 281. Multiple hemivertebrae, fused and misshaped vertebrae, synostosis and scoliosis of cervical, thoracic and lumbar vertebral column were found in the affected calf by radiographic and compute...
چکیده در دنیای مبتنی بر انرژی امروز، برق به عنوان حامل انرژی دارای اهمیت انکار ناپذیری است زندگی مردم بدون برق قطعا با مشکلات عمده ای مواجه خواهد شد اما تولید کننده برق مانند هر کالایی برای تولید متقبل هزینه هایی می شود و مصرف کننده نیز باید بهای آن را پرداخت کند؛ اما کیفیت کالای ارایه شده از اهمیت زیادی بر خوردار است در این تحقیق به خاموشی برق به عنوان معضلی بر کیفیت برق توجه شده است که رفاه...
Livestock species can be affected by different types of genetic defects. Recently, we are faced with genetic defects in dairy cattle such as bovine leukocyte adhesion deficiency (BLAD) and complex vertebral malformation (CVM) both are autosomal recessive defects leads to an inherited lethal disease in Holstein breed. BLAD is caused by a deficiency in leukocyte surface glycoproteins known as int...
Complex vertebral malformation (CVM) has considerable economic impact on dairy cattle breeding due to extensive use of artificial insemination (AI). Identifying the carrier is an important factor to reduce the incidence of the genetic disorder. The study was conducted to identify the carriers of CVM in Frieswal cattle by polymerase chain reaction-primer-introduced restriction analysis (PCR-PIRA...
محاسبه ارزش اقتصادی منابع طبیعی مبتنی بر بهرهبرداری سرانه و تجمیعشده، میتواند راهکاری مناسب برای ارزشگذاری اقتصادی منابع گردشگری در طول یک دوره مشخص و با تعداد مشخص بهرهبردار باشد. در این صورت امکان واگذاری منبع موردنظر برای انتفاع استثناپذیر از منابع طبیعی (مشروط به بقای اصل منبع گردشگری) وجود خواهد داشت. در این پژوهش با استفاده از بروزرسانی بیزینِ در الگوی تمایل به پرداخت (WTP) در مدل ارز...
Observational studies have found a protective effect of vitamin C on cardiovascular health. However, results are inconsistent, and residual confounding by fiber might be present. The aim of this study was to assess the association of vitamin C with the incidence of cardiovascular disease (CVD) and cardiovascular mortality (CVM) while accounting for fiber intake and adherence to the Mediterranea...
The objective of this study was to use linear and non-linear methods to investigate cardiac autonomic modulation in healthy elderly men and women in response to a postural change from the supine to the standing position. Fourteen men (66.1 ± 3.5 years) and 10 women (65.3 ± 3.3 years) were evaluated. Beat-to-beat heart rate was recorded in the supine and standing positions. Heart rate variabilit...
Given the difficulty in finding a cure for HIV/AIDS, a promising prevention strategy to reduce HIV transmission is to directly block infection at the portal of entry. The recent Thai RV144 trial offered the first evidence that an antibody-based vaccine may block heterosexual HIV transmission. Unfortunately, the underlying mechanism(s) for protection remain unclear. Here we theoretically examine...
Readers may make verbatim copies of this document for non-commercial purposes by any means, provided that this copyright notice appears on all such copies. Abstract This paper presents an application of the contingent valuation method (CVM) and choice experiments (CEs). We examine consumer willingness to pay (WTP) for different health risk reduction levels of Salmonellosis and Campylobacteriosi...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید