نتایج جستجو برای: tna
تعداد نتایج: 313 فیلتر نتایج به سال:
BACKGROUND Transient ischemic attacks (TIA) are characterized by acute onset focal neurological symptoms and complete recovery within 24 hours. Attacks of nonfocal symptoms not fulfilling the criteria for TIA but lacking a clear alternative diagnosis are called transient neurological attacks (TNA). Although TIA symptoms are transient in nature, cognitive complaints may persist. In particular, a...
The National Archives (TNA) is the UK government's official archive. They store and maintain records spanning over a thousand years; more recently in digital form. Much of the information held by TNA makes reference to place; and frequently user’s queries to TNA’s online catalogue involve searches for location. To enhance access to this unique collection, we are planning to utilise existing tec...
We used site-directed mutagenesis to replace the Escherichia coli tryptophanase (tna) operon leader peptide start codon with AUC. This change greatly decreased the uninduced rate of tna operon expression, and it also lowered the response to inducer. We conclude that leader peptide synthesis plays an essential role in tna operon expression.
CONTEXT Transient neurological attacks (TNAs) are attacks with temporary (<24 hours) neurological symptoms. These symptoms can be focal, nonfocal, or a mixture of both. The prognostic significance of TNAs with focal symptoms (better known as transient ischemic attacks [TIAs]) is well understood. Conversely, hardly anything is known about the prognostic significance of TNAs with nonfocal or mixe...
Training needs analysis (TNA) is the first step in the training and educational strategy of an organisation and is crucial to meeting the continuing professional development needs of the healthcare workforce and service. TNA must be carefully planned, conducted and have clear outcomes to ensure that training interventions are implemented effectively and that they lead to meaningful changes in s...
A Transient Network Analyzer (TNA) is a large, controlled hardware simulation environment for studying electrical faults. Background is presented on how the university acquired a TNA from a public utility and adapted it for use in teaching and research. System is described with specifications. Capstone design process combined with a solid funded followup serves as a means to leverage the creati...
The structural gene for ampicillin resistance resides upon a 3.2 X 10(6)-dalton sequence of deoxyribonucleic acid, TnA that can be transposed from replicon to replicon in laboratory experiments. TnA was transposed from a large conjugative plasmid to a small nonconjugative plasmid, RSF1010. Several RSF1010::TnA plasmids isolated in these laboratory experiments have been shown to be identical to ...
[1] In this paper for the first time I show that themultidecadal variations of observed tropical North Atlantic (TNA) sea surface temperature (SST) are strongly anticorrelated with those of the observedTNA subsurface ocean temperature, with long-term trends removed. I further show that the anticorrelated change between the TNA surface and subsurface temperature is a distinctive signature of the...
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