Results 31 to 40 of about 953,820 (321)

Magnetic field amplification by collisionless shocks in partially ionized plasmas [PDF]

open access: yes, 2015
In this paper, we study shock structures of collisionless shocks in partially ionized plasmas by means of two-dimensional hybrid simulations, where the shock is a perpendicular shock with shock velocity Vsh ~ 40 Va ~ 1333 km/s and the upstream ionization fraction is 0.5. We find that large density fluctuations and large magnetic fields fluctuations are
arxiv   +1 more source

Tracing shock type with chemical diagnostics: an application to L1157 [PDF]

open access: yesA&A 634, A17 (2020), 2019
Aims: The physical structure of a shock wave may take a form unique to its shock type, implying that the chemistry of each shock type is unique as well. We aim to investigate the different chemistries of J-type and C-type shocks in order to identify unique molecular tracers of both shock types.
arxiv   +1 more source

Circulating tumor cells: advancing personalized therapy in small cell lung cancer patients

open access: yesMolecular Oncology, EarlyView.
Small cell lung cancer (SCLC) is an aggressive form of lung cancer that spreads rapidly to secondary sites such as the brain and liver. Cancer cells circulating in the blood, “circulating tumor cells” (CTCs), have demonstrated prognostic value in SCLC, and evaluating biomarkers on CTCs could guide treatment decisions such as for PARP inhibitors ...
Prajwol Shrestha   +6 more
wiley   +1 more source

Experimental research on dynamic vibration absorber with negative stiffness for longitudinal vibration control of propulsion shafting system

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectivesIn order to control the first longitudinal vibration mode of propulsion shafting systems, a dynamic vibration absorber with disc spring negative stiffness is proposed and its experimental verification carried out.
Xiuchang HUANG   +3 more
doaj   +1 more source

Encounters of Merger and Accretion Shocks in Galaxy Clusters and their Effects on Intracluster Medium [PDF]

open access: yes, 2020
Several types/classes of shocks naturally arise during formation and evolution of galaxy clusters. One such class is represented by accretion shocks, associated with deceleration of infalling baryons. Such shocks, characterized by a very high Mach number, are present even in 1D models of cluster evolution.
arxiv   +1 more source

Suprathermal Proton Spectra at Interplanetary Shocks in Hybrid Simulations [PDF]

open access: yes, 2020
Interplanetary shocks are one of the proposed sources of suprathermal ion populations (i.e., ions with energies of a few times the solar wind energy). Here, we present results from a series of three-dimensional hybrid simulations of collisionless shocks in the solar wind. We focus on the influence of the shock-normal angle, $\theta_{Bn}$, and the shock
arxiv   +1 more source

Evaluation of synaptotagmin‐1 action models by all‐atom molecular dynamics simulations

open access: yesFEBS Open Bio, EarlyView.
We used molecular dynamics simulations to test models proposing that synaptotagmin‐1 facilitates membrane fusion by perturbing lipid bilayers, inducing membrane curvature and/or bridging membranes. The simulations show that synaptotagmin‐1 C2‐domains placed near the site of fusion hinder the ability of SNARE complexes to bring the membranes together ...
Josep Rizo   +2 more
wiley   +1 more source

Patients value their own pain over braking safety when deciding when to return to driving: a discrete choice experiment on lower extremity injuries

open access: yesOTA International, 2022
. Objective:. To quantify patient preferences towards time to return to driving relative to compromised reaction time and potential complication risks. Design:. Cross-sectional discrete choice experiment. Setting:. Academic trauma center.
Genaro A. DeLeon, MS   +11 more
doaj   +1 more source

FAM136A depletion induces mitochondrial stress and reduces mitochondrial membrane potential and ATP production

open access: yesFEBS Open Bio, EarlyView.
FAM136A depletion upregulated ROS production, reduced mitochondrial membrane potential (ΔΨ) and ATP production, and upregulated expression of PCK1, PCK2, HMGCS1, and HMGCS2. The expression of both TOMM22 and TOMM20 was also upregulated. FAM136A depletion reduced HCCS that produce holocytochrome c by combining heme to apocytochrome c, and reduced the ...
Yushi Otsuka, Masato Yano
wiley   +1 more source

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