نتایج جستجو برای: non use value
تعداد نتایج: 3395931 فیلتر نتایج به سال:
this study aims to quantify the impacts of land use changes on ecosystem service value during large scale land development, and to provide key information for both economic development and policy makers for eco-environmental protection. the study area locates in manas river watershed which is a typical land development region in northwest china. landsat mss/tm/etm+ images in 1976, 1989, 1999 an...
to report the association of pulp calcification with that of cardiovascular disease (cvd) using digital panoramic dental radiographs.digital panoramic radiographs of patients referred from the angiography department were included if the patient was under 55 years old and had non-restored or minimally restored molars and canines. an oral and maxillofacial radiologist evaluated the images for pul...
in this work we synthesized nano hydroxyapatite (hap) by sol-gel method, then we functionalized hydroxyapatite nanoparticle by use of 3-aminopropyl trimethoxysilane (aptms) , to improve the loading and control release of sulfasalazine drug bonded to aptms. the drug release patterns from sulfasalazine loaded hap nanoparticles at ph value 8 for 6h, sulfasalazine loaded functionalized hap nanopa...
The unsteady increase in using pharmaceutical opioids is a phenomenon that has existed in human societies for a long time. Furthermore, the ever-growing trend of addiction to opioids affects communities in various economic, social, and cultural aspects. Since abusing pharmaceutical opioids is a complex dynamic problem, it is extremely difficult to recognize the factors influencing this abuse. T...
The unsteady increase in using pharmaceutical opioids is a phenomenon that has existed in human societies for a long time. Furthermore, the ever-growing trend of addiction to opioids affects communities in various economic, social, and cultural aspects. Since abusing pharmaceutical opioids is a complex dynamic problem, it is extremely difficult to recognize the factors influencing this abuse. T...
In 1998, the Florida Department of Health undertook a self-administered school-based survey of tobacco use, attitudes, and behaviors among nearly 23,000 public school students in grades 6-12. The survey design did not use skip patterns; therefore, students had multiple opportunities to contradict themselves. By using examples from the high school portion (grades 9-12) of the survey, the authors...
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