Abstract Since the 1990s, Qinghai-Tibetan Plateau (QTP) has experienced a strikingly warming and wetter climate that alters thermal hydrological properties of frozen ground. A positive correlation between degradation in permafrost or seasonally ground (SFG) long been recognized. Still, predictive relationship historical wetting under conditions not yet well demonstrated, despite expectation it ...

BACKGROUND Tick-borne rickettsioses are caused by obligate intracellular bacteria belonging to the spotted fever group (SFG) rickettsiae. Although Spotted Fever is prevalent in the Middle East, no reports for the presence of tick-borne pathogens are available or any studies on the epidemiology of this disease in the West Bank. We aimed to identify the circulating hard tick vectors and genetical...

PURPOSE Resting-state functional magnetic resonance imaging (fMRI) studies have demonstrated the disruptions of multiple brain networks in tinnitus patients. Nonetheless, several studies found no differences in network processing between tinnitus patients and healthy controls (HCs). Its neural bases are poorly understood. To identify aberrant brain network architecture involved in chronic tinni...

A solid surface in contact with an aqueous solution is typically charged. When put electrolyte solution, the charge and composition are crucially affected by of phase due to ion-specific interactions between ions surface. In this study, we combine surface-sensitive vibrational sum frequency generation (v-SFG) spectroscopy flow experiments investigate at fluorite-water interface. The flow-induce...

We demonstrate high resolution and increased efficiency background-free time-to-space conversion using spectrally resolved non-degenerate and collinear SFG in a bulk PPLN crystal. A serial-to-parallel resolution factor of 95 and a time window of 42 ps were achieved. A 60-fold increase in conversion efficiency slope compared with our previous work using a BBO crystal [D. Shayovitz and D. M. Maro...

A molecular theory of time-resolved sum-frequency generation (SFG) has been developed. The theoretical framework is constructed using the coupled-oscillator model in the adiabatic approximation. This theory can treat not only the vibrational spectroscopy but also vibrational dynamics. An application of this theory is also provided for estimation of the time constants of the intermolecular vibra...

We study the resonant interaction of the OH stretch vibrations of water molecules at the surfaces of liquid water and ice using heterodyne-detected sum-frequency generation (HD-SFG) spectroscopy. By studying different isotopic mixtures of H2O and D2O, we vary the strength of the interaction, and we monitor the resulting effect on the HD-SFG spectrum of the OH stretch vibrations. We observe that...

Isolating the hydrogen-bonding structure of water immediately at surface is challenging, even with surface-specific techniques like sum-frequency generation (SFG), because presence aligned further away in diffuse layer. Here, we combine zeta potential and SFG intensity measurements maximum entropy method referenced to reported phase-sensitive second-harmonic results deconvolute spectral contrib...

The effects of climate change on permafrost have been well documented in many studies, whereas the effect seasonally frozen ground (SFG) is still poorly understood. We used observed daily freeze depth SFG and environmental factors data from period 2007–2016 to examine seasonal inter-annual variation SFG. quantitatively evaluated using a boosted regression tree analysis. results show that, scale...