منابع مشابه
predatory open access journals
سخن سردبیر editorial مجله دانشگاه علوم پزشکی رفسنجان دوره پانزدهم، آبان 1395، 808-807 مجلات یغماگر با دسترسی آزاد predatory open access journals محسن رضائیان[1]،[2] m. rezaeian پیدایش و رشد «مجلات با دسترسی آزاد» (open access journals) در سالیان اخیر، نویدبخش دوره جدیدی از چاپ و انتشار یافته های نوین علمی بود. قرار بود که در این دوره جدید، نویسندگان یک مقاله علمی با پرداخت هزینه های چاپ، نتیجه ...
متن کاملWhen Is Open Access Not Open Access?
S ince 2003, when PLoS Biology was launched, there has been a spectacular growth in " open-access " journals. The Directory of Open Access Journals (http:⁄⁄www. doaj.org/), hosted by Lund University Libraries, lists 2,816 open-access journals as this article goes to press (and probably more by the time you read this). Authors also have various " open-access " options within existing subscriptio...
متن کاملSubsidizing Extra Jobs
directed the Chair of Public Economics, for giving me the opportunity to pursue my research interests and for his encouragement and support throughout the project. Without his academic guidance, his soft, but determined pressure for results and his enthusiasm to prove that economic theory can make a difference to economic policymaking, this dissertation would never have been completed. Wehke – ...
متن کاملOpen Access, Open Science, Open Society
Open Access’ main goal is not the subversion of publishers’ role as driving actors in an oligopolistic market characterized by reduced competition and higher prices. OA’s main function is to be found somewhere else, namely in the ability to subvert the power to control science’s governance and its future directions (Open Science), a power that is more often found within the academic institution...
متن کاملSubsidizing (And Taxing) Business Procurement
This paper studies the effect of a subsidy (or tax) on a market where a downstream manufacturer uses a competitive tender to procure inputs from upstream suppliers. Subsidizing input production can result in input price decreases that are greater than the effective decrease in marginal costs. That is, overshifting occurs. When the size of the subsidy is not too large, the downstream firm can en...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 2016
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.aag0946