Results 111 to 120 of about 5,069,413 (334)

Angular Momentum Transport by MHD Turbulence in Accretion Disks: Gas Pressure Dependence of the Saturation Level of the Magnetorotational Instability

, 2003
The saturation level of the magnetorotational instability (MRI) is investigated using three-dimensional MHD simulations. The shearing box approximation is adopted and the vertical component of gravity is ignored, so that the evolution of the MRI is ...
James M. Stone, Kawaguchi T., Neal J. Turner, Parker E. N., Shakura N. I., Shu‐ichiro Inutsuka, Takayoshi Sano   +6 more
core   +1 more source

RESISTANCE INDEX IN HUMAN MUSCULAR MOVEMENT

The Japanese Journal of Physiology, 1954
(1) Existing data on oxygen or energy requirement and speed have been analysed, using the formula E=KVn, where E denotes oxygen or energy requirement at speed V, and K and n are constants.(2) Comparison of several forms of muscular exercise or work, showed that the value of n is correlated to the severity of muscular activity.(3) If a given muscular ...
openaire   +3 more sources

The ubiquitin ligase RNF115 is required for the clearance of damaged lysosomes

FEBS Letters, EarlyView.
Upon lysosomal rupture, an E3 ubiquitin ligase RNF115 translocates from the cytosol to the damaged lysosomal membrane. Moreover, RNF115 depletion impairs the clearance of damaged lysosomes, identifying it as a key regulator of lysosomal quality control.
Sae Nakanaga, Toshiki Takahashi, Akiko Kuma, Hiroyuki Kawahara   +3 more
wiley   +1 more source

Spherical Accretion with Anisotropic Thermal Conduction

, 2008
We study the effects of anisotropic thermal conduction on magnetized spherical accretion flows using global axisymmetric MHD simulations. In low collisionality plasmas, the Bondi spherical accretion solution is unstable to the magnetothermal instability (
Aitken, Baganoff, Balbus, Balbus, Bondi, Bower, Braginskii, Chandran, Chandran, Cowie, Cowie, Cuadra, Donati, E. Quataert, Fleming, Fromang, Goodman, Hawley, Igumenshchev, J. M. Stone, Johnson, Marrone, Marrone, P. Sharma, Paczynski, Parrish, Parrish, Parrish, Piffaretti, Quataert, Quataert, Quataert, Rees, Sarazin, Sharma, Sharma, Sharma, Sharma, Shvartsman, Snyder, Spitzer, Stone, Stone, Stone, Tanaka   +44 more
core   +1 more source

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Evaluation of resistive index using color Doppler imaging of orbital arteries in geriatric patients with hypertension

Indian Journal of Ophthalmology, 2014
Background and Aim: Resistive index (RI) is an indirect measurement of blood flow resistance that can be used to evaluate vascular damage in ophthalmologic disease.
Ali Akal, Turgay Ulas, Tugba Goncu, Ekrem Karakas, Omer Karakas, Fatih Kurnaz, Fatima Nurefsan Boyaci, Omer Faruk Yilmaz, Abdulgafur Bata, Sema Yildiz   +9 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Activation of MHD reconnection on ideal timescales

, 2016
Magnetic reconnection in laboratory, space and astrophysical plasmas is often invoked to explain explosive energy release and particle acceleration. However, the timescales involved in classical models within the macroscopic MHD regime are far too slow ...
Del Zanna, L., Landi, S., Papini, E., Pucci, F., Tenerani, A.   +4 more
core   +1 more source

Doppler indexes of left ventricular systolic and diastolic flow and central pulse pressure in relation to renal resistive index.

American Journal of Hypertension, 2015
BACKGROUND The cardio-renal interaction occurs via hemodynamic and humoral factors. Noninvasive assessment of renal hemodynamics is currently possible by assessment of renal resistive index (RRI) derived from intrarenal Doppler arterial waveforms as ...
T. Kuznetsova, N. Cauwenberghs, J. Knez, L. Thijs, Yan-ping Liu, Yu-mei Gu, J. Staessen   +6 more
semanticscholar   +1 more source

Potential therapeutic targeting of BKCa channels in glioblastoma treatment

Molecular Oncology, EarlyView.
This review summarizes current insights into the role of BKCa and mitoBKCa channels in glioblastoma biology, their potential classification as oncochannels, and the emerging pharmacological strategies targeting these channels, emphasizing the translational challenges in developing BKCa‐directed therapies for glioblastoma treatment.
Kamila Maliszewska‐Olejniczak, Karolina Pytlak, Sandra Jaworowska, Bogusz Kulawiak, Piotr Bednarczyk   +4 more
wiley   +1 more source