منابع مشابه
Beware of predatory journals
© 2017 The Author(s). Published by Taylor & Francis on behalf of the Nordic Orthopedic Federation. This is an Open Access article distributed under the terms of the Creative Commons Attribution-Non-Commercial License (https://creativecommons.org/licenses/by-nc/3.0) DOI 10.1080/17453674.2017.1387731 The Open Access system is abused by an explosively increasing number of so-called predatory journ...
متن کاملBeware of the glycemia.
in both anterior choroidal artery territories that were compatible with acute ischemic stroke. On perfusion-weighted imaging, cerebral blood flow and volume were slightly increased ( fig. 1 a). There was no abnormality on the FLAIR images, nor was there any arterial occlusion visible on intracranial three-dimensional time-offlight MRI. However, glycemia was low at 2.06 mmol/l. The hypoglycemia ...
متن کاملThe misalignment induced aberrations of TMA telescopes.
The next major space-borne observatory, the James Webb Space Telescope, will be a 6.6M field-biased, obscured, three-mirror anastigmat (TMA). Over the used field of view, the performance of TMA telescopes is dominated by 3(rd) order misalignment aberrations. Here it is shown that two dominant 3(rd) order misalignment aberrations arise for any TMA telescope. One aberration, field constant 3(rd) ...
متن کاملComplements ?
This paper revises the interdependence between flexible technology and product innovation in the context of a monopolistic firm. Previous literature argued that flexible machinery reduces the cost of incremental innovation. To take interactions beyond the fixed cost into account, we introduce a 2-period optimization model where technology, innovation and price are chosen first, then stochastic ...
متن کاملBuyer beware.
As the safety and efficacy of IUDs are being appreciated by more clinicians and by more women, the demand for these devices has grown. Unfortunately, the prices of these devices have also increased over the last few years. The cost of the IUD, when amortized over the average time of utilization, is very low, but that does little to buffer women from the initial sticker shock. In times of econom...
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ژورنال
عنوان ژورنال: Blood
سال: 2013
ISSN: 0006-4971,1528-0020
DOI: 10.1182/blood-2013-07-512707