abstract potato virus a (pva) is one of the members of genus potyvirus. pva particles are straight to slightly flexuous rods and contain of single stranded rna. in the spring and summer of 2005, sampling accomplished to determine potato virus a from potato fields in northern and razavi khorasan provinces. samples with mosaic, shining and rolling of leaves carried in ice chamber to laboratory fo...

Background. Frontal lobe atrophy (FLA) is associated with late life depression. However, the role that FLA plays in the development of depression after stroke (DAS) remains unknown. This study thus examined the association between FLA and DAS. Methods. A convenience sample of 705 Chinese patients with acute ischemic stroke admitted to the acute stroke unit of a university-affiliated regional ho...

The aim of this study was to investigate the effectiveness of dried activated sludge (DAS) and mixed dried activated sludge with rice husk silica (DAS & RHS) for removal of hydrogen sulfide (H2S). Two laboratory-scale filter columns (packed one litter) were operated. Both systems were operated under different conditions of two parameters, namely different inlet gas concentrations and different ...

AIMS Patient decision aids (DAs) are interventions designed to help patients making informed decisions. DAs are complex interventions comprising a number of active components each essential to the proper functioning of the aid. Critical appraisal of DAs therefore requires access to information describing the incremental assessment of each stage in their development, including information about ...

Autophagy is a cellular bulk degradation pathway implicated in various diseases. Inhibition of autophagy has been regarded as a new therapeutic strategy for cancer treatment, especially in combination with chemotherapy. In our study, we identified two natural compounds, dauricine (DAC) and daurisoline (DAS), as two potent autophagy blockers through a high-content screening. DAC and DAS are alka...

Es wird ein marginalisiertes Partikelfilter beschrieben, das zur einkanaligen Sprachsignalverbesserung mit einem nichtlinearen dynamischen Zustandsmodell eingesetzt werden soll. Das System besteht aus einem Partikelfilter zum Tracking von LSP-Parametern und einem Kalman-Filter für jedes Partikel, das zur Sprachsignalverbesserung verwendet wird. In unserem Ansatz wird angenommen, dass die Parame...

Zusammenfassung: IT-Sicherheit ist für Unternehmen von elementarer Bedeutung. Im IT-Sicherheitsmanagement werden Techniken entwickelt, mit denen die Sicherheit von Informationssystemen gewährleistet werden soll. Aktuelle Studien zeigen, dass der überwiegende Teil von Betriebsstörungen auf menschliches (Fehl)Verhalten zurückzuführen ist. Daher erscheint es notwendig, das ITSicherheitsmanagement ...

The Distributed ASCI Supercomputer (DAS) Project has resulted in four generations of highly successful distributed clusters, starting with DAS-1 in 1997 leading up to DAS-4, which is expected to be installed mid-2010. Each new incarnation has implemented bold new technologies, pushing the limits of highperformance cluster design. Recent years have also seen the rise of the cloud computing parad...