Beat-to-beat variability of the QT interval (QTV) is sought to provide an indirect noninvasive measure of sympathetic nerve activity, but a formal quantification of this relationship has not been provided. In this study we used power contribution analysis to study the relationship between QTV and muscle sympathetic nerve activity (MSNA). ECG and MSNA were recorded in 10 healthy subjects in the ...

In support of a large, combined Australia-United States of America military exercise at Shoalwater Bay in south-eastern Queensland during March 1997 (TANDEM THRUST 97), the United States Navy sent the Deployed Public Health Laboratory (DPHL) into the field with the forces. The purpose of this was preventative medicine as well as disease and vector surveillance. Among the numerous potential thre...

Laboratory methods and questionnaires to assess the relative reinforcing value of food (RRV-F) have been developed, but this is the first study to validate an online questionnaire measure of the RRV-F. Participants (281 college students) completed an online survey assessing demographic variables, food preferences, and the RRV-F. A subsample (n=21) also completed a laboratory food choice session...

Ivan Havel remembers when in the late 1970s the Czechoslovakian state police began watching his apartment. For months he had been hosting unofficial science seminars, and the police didn't like it. "It politicized me, says the soft-spoken computer scientist and brother of Czechoslovakian president Vaclav Havel. "The police would check the people who came and ask them to identify 'themselves. Th...

Water quantity and quality joint operation is a new mode in the present dams' operation research. It has become a hot topic in governmental efforts toward integrated basin improvement. This paper coupled a water quantity and quality joint operation model (QCmode) and genetic algorithm with Soil and Water Assessment Tool (SWAT). Together, these tools were used to explore a reasonable operation o...

Amortizasiyanın mahiyyəti sadəcə olaraq aktivin maddi cəhətdən köhnəlməsindən ibarət deyil. Bu halda, aktivlərin amortizasiya edilməməsi üçün heç bir xüsusi səbəb olmayacaqdır. Müəssisə (təşkilat) ayırmaları nəticəsində obyektinin əvvəlki dəyərini tədricən bərpa edir. Nəticədə, bu dəyərin bərpası müəssisə fəaliyyətinin davamlılığına öz təsirini göstərir. Amortizasiya aktivləri qorumaq və davaml...

Mikilvægt er að standa vörð um jafnrétti kynjanna á tímum Covid 19 þar sem búast má við bakslagi, bæði vegna þess staða undirskipaðra hópa versnar enn frekar og óvissutímum hætta jafnréttisáherslur mæti afgangi. Í greininni eru tilkynningar rektors Háskóla Íslands til nemenda starfsfólks í kórónuveirufaraldrinum greindar út frá sjónarmiðum kynjajafnréttis. Gögn rannsóknarinnar samanstanda af 96...

riparian vegetation is a component of river system that performs certain basic functions including primary vegetative production, protecting stream banks from erosion, trapping sediments, promoting water quality, wildlife habitat and fisheris, forage for livestock, etc. in this research, spatio-temporal change of vegetation riparian area of aghbolagh-river as an upstream of karoon-river for 65-...

Çoxlu zonaların qıvrılmış borularla (KT) həlqəvi qırılması on ildən artıqdır ki, tətbiq olunur. Tipik bir müalicə qum püskürtmə perforasiyasını, quyunun təmizlənməsini, qırılmaları və izolyasiyanı əhatə edir. Hər intervalı tez zamanda perforasiya etmək, sındırmaq təcrid etmək iqtisadi cəhətdən məqsədəuyğundur, bütün intervalları mümkün olan ən qısa müddətdə etməyə imkan verir. Bununla belə, üfü...