BACKGROUND The use of vasoconstrictor can affect the dynamic indices to predict fluid responsiveness. We investigate the effects of an increase of vascular tone on dynamic variables of fluid responsiveness in a rabbit model of hemorrhage, and to examine the ability of the arterial pressure surrogates dynamic indices to track systolic volume variation (SVV) during hypovolemia under increased vas...

Impacts of sudden stratospheric warming (SSW) on three severe cold events (C1–C3) over Northern Hemisphere in early 2021 were investigated using subseasonal-to-seasonal ensemble forecasts. The SSW was characterized by successive displacement and split the polar vortex (SPV). Ensemble-based sensitivity analyses showed that C1 Siberia C2 western Canada more related to SPV variations at a lead tim...

OBJECTIVE To clarify the pathophysiological basis of persistent geotropic positional nystagmus (PGN) in patients with the horizontal canal type of benign paroxysmal positional vertigo (H-BPPV), the time constant (TC) of nystagmus and the relationship between its slow phase eye velocity (SPV) and the angle of head rotation in supine were defined. METHODS Geotropic or apogeotropic positional ny...

At retirement, most individuals face a choice between voluntary annuitization and discretionary management of assets with systematic withdrawals for consumption purposes. Annuitization— buying a life annuity from an insurance company—assures a lifelong consumption stream that cannot be outlived, but it is at the expense of a complete loss of liquidity. On the other hand, discretionary managemen...

BACKGROUND The importance of fostering the development of empathy in undergraduate students is continuously emphasized in international recommendations for medical education. Paradoxically, some studies in the North-American context using self-reported measures have found that empathy declines during undergraduate medical training. Empathy is also known to be gender dependent- (highest for fema...

In this paper, a nonlinear decentralized double-integral sliding mode controller (DI-SMC) is designed along with an energy management system (EMS) for the DC microgrid (DCMG). This DCMG includes having hybrid storage (HESS) that incorporates battery (BESS) and supercapacitor (SCESS) while load demand met through power generated from solar photovoltaic (SPV) units. First, dynamical models of eac...

Fifteen neuro-otological patients have been investigated for post-traumatic vertigo, hearing loss and tinnitus. Clinical examination and laboratory tests included audiometry and equilibriometry in all patients. Statistically significant findings are reported for tinnitus, vertigo, hearing loss. Correlations for vertigo with the type of head trauma, nystagmus frequency Slow Phase Velocity (SPV) ...

The authors examined the effect of 3,4-diaminopyridine (DAP) on the gravity-dependent (GD) vertical ocular drift component of downbeat nystagmus in 11 patients with idiopathic cerebellar ataxia. With the head tilted downward (45 degrees ), DAP reduced slow phase velocity (SPV) in 7 of 11 patients by 36%. Its efficacy correlated with the GD modulation. DAP minimizes the gravity-independent veloc...

Solar photovoltaic (SPV) has emerged as one of the major renewable source of electricity generation. Solar electricity is more expensive than that produced by traditional sources. But over the past two decades, the cost gap has been closing. Solar photovoltaic (SPV) technology has emerged as a useful power source of applications such as lightning, meeting the electricity needs of villages, hosp...