11,364 research outputs found
GW26-e0090 Mitochondrial aldehyde dehydrogenase 2 protects cardiomyocytes against high glucose: role of PLD-ULK1 signaling-regulated autophagy
A thermodynamically consistent quasi-particle model without density-dependent infinity of the vacuum zero point energy
In this paper, we generalize the improved quasi-particle model proposed in J.
Cao et al., [ Phys. Lett. B {\bf711}, 65 (2012)] from finite temperature and
zero chemical potential to the case of finite chemical potential and zero
temperature, and calculate the equation of state (EOS) for (2+1) flavor Quantum
Chromodynamics (QCD) at zero temperature and high density. We first calculate
the partition function at finite temperature and chemical potential, then go to
the limit and obtain the equation of state (EOS) for cold and dense QCD,
which is important for the study of neutron stars. Furthermore, we use this EOS
to calculate the quark-number density, the energy density, the quark-number
susceptibility and the speed of sound at zero temperature and finite chemical
potential and compare our results with the corresponding ones in the existing
literature
"Sudden Drop" in Blood Pressure is Associated With Recanalization After Thrombolysis.
We aim to investigate whether the phenomenon of "sudden drop" in blood pressure (BP) within the first 2 hours is associated with vessel recanalization.We retrospectively examined clinical and imaging data from a consecutive series of patients with stroke with large vessel occlusion treated with intravenous thrombolysis (IVT). BP was monitored every 15 minutes during the first 2 hours, then every 30 minutes for 6 hours, and then every hour for 16 hours.We observed the phenomenon of "sudden drop" in systolic BP (≥20 mm Hg) in 82 (50.9%) patients in the first 2 hours and vessel recanalization in 87 (54.0%) patients 24 hours after treatment. This phenomenon was independently associated with recanalization (odds ratio 2.100; 95% confidence interval: 1.085-4.062; P = 0.028) after adjusting for the history of atrial fibrillation, coronary heart disease, and hypertension.The phenomenon of "sudden drop" in systolic BP with 20 mm Hg or greater between 2 continuous measurements within the first 2 hours is associated with recanalization after IVT in patients with large vessel occlusion, especially for middle cerebral artery occlusion
A Non-topological Extension of Bending-immune Valley Topological Edge States
Breaking parity (P) symmetry in C symmetric crystals is a common routine
to implement a valley-topological phase. At an interface between two crystals
of opposite valley phases, the so-called valley topological edge states emerge,
and they have been proven useful for wave transport with robustness against
120 bending and a certain level of disorder. However, whether these
attractive transport features are bound with the valley topology or due to
topological-irrelevant mechanisms remains unclear. In this letter, we discuss
this question by examining transport properties of photonic edge states with
varied degrees of the P-breaking that tune the valley topology, and reveal that
the edge states preserve their transport robustness insensitive to the topology
even when the P-symmetry is recovered. Instead, a unique modal character of the
edge states -- with localized momentum hotspots around high-symmetric
() points -- is recognized to play the key role, which only concerns the
existence of the valleys in the bulk band structures, and has no special
requirement on the topology. The "non-topological" notion of valley edge states
is introduced to conceptualize this modal character, leading to a coherent
understanding of bending immunity in a range of edge modes implemented in C
symmetric crystals -- such as valley topological edge states, topological edge
states of 2D Zak phase, topological-trivial edge states and so on, and to new
designs in general rhombic lattices -- with exemplified bending angle as large
as 150
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