نتایج جستجو برای: tna

تعداد نتایج: 313  

Journal: :Atmosphere 2021

This study analyzes the variability of Choco jet (CJ) and Caribbean low-level (CLLJ) with consideration simultaneous Pacific interdecadal oscillation (PDO) Atlantic multidecadal (AMO) low-frequency mean states their effects on atmospheric circulation rainfall in northwestern South America Central for 1900–2015 period, during seasons highest intensities CJ (September–November (SON)) CLLJ (June–A...

Journal: :Journal of bacteriology 1999
K V Konan C Yanofsky

Expression of the degradative tryptophanase (tna) operon of Escherichia coli is regulated by catabolite repression and tryptophan-induced transcription antitermination. In cultures growing in the absence of added tryptophan, transcription of the structural genes of the tna operon is limited by Rho-dependent transcription termination in the leader region of the operon. Tryptophan induction preve...

2016
Hongpeng Chen Nan Tang Min Chen Dihu Chen

Carbon plasma nanocoatings with controlled fraction of sp(3)-C bonding were deposited on TiO2 nanorod arrays (TNAs) by DC magnetic-filtered cathodic vacuum arc deposition (FCVAD). The cytocompatibility of TNA/carbon nanocomposites was systematically investigated. Human umbilical vein endothelial cells (HUVECs) were cultured on the nanocomposites for 4, 24, and 72 h in vitro. It was found that p...

2006
Audun Jøsang Ross Hayward Simon Pope

Trust networks consist of transitive trust relationships between people, organisations and software agents connected through a medium for communication and interaction. By formalising trust relationships, e.g. as reputation scores or as subjective trust measures, trust between parties within the community can be derived by analysing the trust paths linking the parties together. This article des...

1999
Yiu-ming Cheung Lei Xu

It has been shown that the dominant independent components obtained by independent component analysis (ICA) can reveal more underlying structure of the series than principal component analysis (Back and Weigend 1997). To find those dominant components, all the independent components are listed in an appropriate order and then a subset of components is selected according to the order. In Back an...

Journal: :Konuralp Tip Dergisi 2022

Objective: Non-ST elevation myocardial infarction (NSTEMI) is a type of acute coronary syndrome and its’ incidence similarly high to ST-elevation infarction. Nucleolar organizing regions (NORs) are located the secondary structure acrocentric chromosome composed proteins ribosomal DNA (rDNA) some which argyrophilic. We aimed investigate change AgNOR proteins, increase in hypoxia, patients with N...

Journal: :International Journal of Climatology 2021

The trade wind inversion (TWI) serves as an important stabilizing mechanism in the tropical North Atlantic (TNA) region, including Caribbean basin. Previous studies have diagnosed TWI using situ observations and radiosondes, typically over islands. However, relying on these point measurements are unable to discern climatology evolution of rest TNA. This study addresses this gap literature throu...

2005
SUSAN T. CHARLES DAVID M. ALMEIDA

The interplay between state negative affect (SNA) and somatic symptoms is well-established in daily life, but the nature of the association is unclear. Questions remain regarding the role, if any, that SNA plays apart from trait negative affect (TNA), the direction of the association, and whether the relationship with SNA varies according to symptom type. Associations between three constellatio...

2012
Diana Maynard Mark A. Greenwood

This paper describes a tool developed to improve access to the enormous volume of data housed at the UK’s National Archives, both for the general public and for specialist researchers. The system we have developed, TNA-Search, enables a multi-paradigm search over the entire electronic archive (42TB of data in various formats). The search functionality allows queries that arbitrarily mix any com...

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