نتایج جستجو برای: 15 years
تعداد نتایج: 1384010 فیلتر نتایج به سال:
Over the past fifteen years, our perspective on tackling information interoperability problems for web-based scholarship has evolved significantly. In this opinion piece, we look back at three efforts that we have been involved in that aptly illustrate this evolution: OAI-PMH, OAI-ORE, and Memento. Understanding that no interoperability specification is neutral, we attempt to characterize the p...
the impact of molecular biology in neuronal cell biology has been steadily growing in the past couple of decades and is now an indispensable tool that is available to any Introduction A lot has happened in the world since the first issue of interested investigator. The ability to clone, express, and mutate specific proteins in neurons is the bread-and-Neuron hit the newsstands in March, 1988. A...
The basic components of the plant cell cycle are G1 (postmitotic interphase), S-phase (DNA synthesis phase), G2 (premitotic interphase) and mitosis/cytokinesis. Proliferating cells are phosphoregulated by cyclin-dependent protein kinases (CDKs). Plant D-type cyclins are sensors of the G0 to G1 transition, and are also important for G2/M. At G1/S, the S-phase transcription factor, E2F, is releas...
Psychiatry Investigation, founded in 2004 as the official English journal of the Korean Neuropsychiatry Association (KNPA), celebrates its 15th anniversary of continued publication. Prof. Byoung-Hoon Oh was the founding Editor-inChief. Since then, excellent scholars such as Professors ChanHyung Kim (2005–2009), Jun-Soo Kwon (2009–2011), Chang-Uk Lee (2012–2015), and Dai-Jin Kim (2016–2017) have...
INTRODUCTION Temporal bone paragangliomas (TBPs) are benign tumors arising from neural crest cells located along the jugular bulbus and the tympanic plexus. In general surgical excision, radiotherapy and wait-and-scan protocols are the main management modalities for TBPs. OBJECTIVE In this paper we aim to present our clinical experience with TBPs and to review literature data. METHODS The p...
This paper discusses the application of three different 100% stator ground fault protection schemes. Two third-harmonic methods and a low frequency-injection method are discussed. Third-harmonic schemes have been widely applied on generators within the U.S. to provide stator ground fault protection over the entire stator winding. In many cases, however, these schemes have been found not to be a...
The spectroscopic properties of the objects that came to be called Narrow-Line Seyfert 1s were first systematically described and named as such 15 years ago by Osterbrock & Pogge (1985). At the time, they were a relatively rare and peculiar subclass of Seyfert galaxies. Their discovery in large numbers in X-ray surveys, however, has elevated them to a role as important members of the AGN family...
In 1981, S. Maslov has proposed a new iterative method for solving propositional satissability problems. The 1981{87 results related to this method were described in the present book. In this chapter, we brieey recall the origins of Maslov's method, and describe further results and ideas related to this method. 1. 1979{81: The Origins of S. Maslov's Iterative Method 1.1. Freedom of choice is ne...
Cardiovascular disease is the leading cause of death worldwide. Compared to other organs such as the liver, the adult human heart lacks the capacity to regenerate on a macroscopic scale after injury. As a result, myocardial infarctions are responsible for approximately half of all cardiovascular related deaths. In contrast, the zebrafish heart regenerates efficiently upon injury through robust ...
Abstract Background: Thyroglossal duct cysts (TDC) are the most common congenital neck masses arising from the expansion of the epithelial tract remnants occurring during embryogenic thyroid migration. About 7% of the population have thyroglossal duct remnants. Clinical presentation is frequent in children, but adults can also present with thyroglossal duct cysts. Thyroglossal duct cysts may r...
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