نتایج جستجو برای: pds
تعداد نتایج: 2626 فیلتر نتایج به سال:
BACKGROUND Among individuals with anxiety disorders, comorbid personality disorders (PDs) increase cross-sectional symptom severity and decrease functioning. Little is known, however, about how PDs influence the course of anxiety disorders over time. The purpose of this study was to examine the effect of PDs on the persistence of four anxiety disorders in a nationally representative sample in t...
The personality disorder (PD) construct continues to be controversial when applied to children and adolescents. Nevertheless, recent research indicates that PDs do occur in youth, and that PDs in youth have meaningful correlates and consequences. We provide a brief review of research on this topic from the past year, and we suggest that evidence for the reality of PDs in youth should be complem...
background and aims: virus-induced gene silencing (vigs) is a virus vector technology that exploits antiviral defense mechanism. by infecting plants with recombinant viruses containing host genes inserted in the viral genome, vigs achieves the rna silencing process. the purpose of this study was to investigate the possibility of tomato (lycopersicon esculentum mill.) and tobacco (nicotiana bent...
جلبک تک سلولی دونالیلا موجودی مقاوم به شوری است که تحت شرایط تنش شوری بالا، کمبود مواد غذایی و نور شدید، موادی از قبیل کاروتنوئید و گلیسرول تولید می کند. با توجه به اهمیت کارتنوئیدهایی از قبیل بتاکاروتن در صنایع مختلف، جداسازی ژنهای کلیدی موثر در مسیر بیوسنتز کارتنوئیدها، به منظور بررسی روند تکاملی مسیر بیوسنتزآنها وانتقال و بیان این ژنها در میزبانهای مستعد، جهت افزایش عملکرد تولید، مورد توجه ق...
It has been suggested that infant-directed speech (IDS) is a special speech register conducive to gaining infants’ attention, eliciting and expressing affect, and teaching infants about the phonology of the ambient language. Certain similarities have been observed between IDS and pet-directed speech (PDS), but until now these have not been systematically studied. In this study IDS, PDS, and adu...
Persistent developmental stuttering (PDS) shares clinical features with task-specific dystonias. In these dystonias, intracortical inhibition is abnormally weak. We therefore sought to determine intracortical inhibition and intracortical facilitation in PDS. In 18 subjects with PDS since childhood (mean age, 39.4 [SD 13.0] years) and 18 speech-fluent controls (43.6 [14.3] years), we investigate...
While the anti-tumor actions of ginsenosides from Panax notoginseng are well-studied, the anti-proliferative activity of 20(S)-protopanaxadiol saponins (PDS) in Sanchi ginseng on human ovarian cancer has not been reported, nor has its effect on migration of SKOV3 cells been investigated. In the present study, a wound-healing assay indicated that PDS inhibited the migration of SKOV3 cells, and a...
Certain Personality Disorders (PDs) have been found to be present in the prodromal phase of schizophrenia at a higher rate than other personality disorders. Although schizotypal, paranoid, and schizoid PDs are traditionally viewed as spectra for schizophrenia, research suggests that avoidant PD should be included in this group (e.g., Fogelson et al., 2007). The present study examines whether a ...
We demonstrate solar-blind photodetectors (PDs) by employing AlN thin films on Si(100) substrates with excellent temperature tolerance and radiation hardness. Even at a bias higher than 200 V the AlN PDs on Si show a dark current as low as ~ 1 nA. The working temperature is up to 300°C and the radiation tolerance is up to 10(13) cm(-2) of 2-MeV proton fluences for AlN metal-semiconductor-metal ...
In this paper, a new decision tree-based clustering technique called Phonetic, Dimensional and State Positional Decision Tree (PDS-DT) is proposed. In PDS-DT, phonetic contexts, dimensions and state positions are grouped simultaneously during decision tree construction. PDS-DT provides a complicate distribution sharing structure without any external control parameters. In speaker-independent co...
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