نتایج جستجو برای: on horizon slices

تعداد نتایج: 8428579  

Journal: :Physical review 2021

In this paper we present a method to study the frequency shift of signals sent from near Schwarzschild black hole that grows or shrinks through accretion. We construct numerical solution Einstein's equations sourced by spherical shell scalar field, with positive energy density simulate growth and negative shrink horizon. launch distribution null rays at various time slices during accretion esti...

Farshad Alizadeh Mansouri, Fereshteh Fathollahi, Fereshteh Motamedi, Nafiseh Atapour, Saeed Semnanian,

  The effects of chronic morphine administration on the development of long-term potentiation (LTP) were investigated at the Schaffer collateral-CA1 pyramidal cell synapses of the rat hippocampal slices using primed-bursts tetanic stimulation. Significant enhancement of orthodromic population spike (OPS) was found for all stimulus intensities after tetanic stimulation. OPS enhancement was great...

Journal: :Physical review. D, Particles and fields 1993
Sudarsky Wald

We derive two new integral mass formulas for stationary black holes in EinsteinYang-Mills theory. From these we derive a formula for JΩ − QV , from which it follows immediately that any stationary, nonrotating, uncharged black hole is static and has vanishing electric field on the static slices. In the Einstein-Maxwell case, we have, in addition, the “generalized Smarr mass formula”, for which ...

Objective(s): Precision-cut tissue slices are considered an organotypic 3D model widely used in biomedical research. The comet assay is an important screening test for early genotoxicity risk assessment that is mainly applied on in vitro models.  The aim of the present study was to provide a 3D organ system for determination of genotoxicity using a modified method of the comet assay since the s...

Ali Pourmotabbed, Farshad Alizadeh Mansouri, Fereshteh Motamedi, Saeed Semnanian, Yaghub Fathollahi,

  The involvement of NMDA receptors and voltage-dependent calcium channels in augmentation of long-term potentiation (LTP) was investigated at the Schaffer collateral CA1 pyramidal cell synapses in hippocampal slices of morphine dependent rats, using primed-burst tetanic simulation. The amplitude of the population spike and its delay were measured as indices of increase in postsynaptic excitabi...

Farshad Alizadeh Mansouri, Fereshteh Fathollahi, Fereshteh Motamedi, Nafiseh Atapour, Saeed Semnanian,

The effects of chronic morphine administration on the development of long-term potentiation (LTP) were investigated at the Schaffer collateral-CA1 pyramidal cell synapses of the rat hippocampal slices using primed-bursts tetanic stimulation. Significant enhancement of orthodromic population spike (OPS) was found for all stimulus intensities after tetanic stimulation. OPS enhancement was greates...

Journal: :مهندسی بیوسیستم ایران 0
سیما چراغی دهدزی عضو هیئت علمی دانشگاه آزاد اسلامی، واحد شوشتر، گروه علوم و صنایع غذایی، شوشتر، ایران ناصر همدمی استادیار گروه علوم و صنایع غذایی، دانشکدۀ کشاورزی، دانشگاه صنعتی اصفهان، اصفهان، ایران

throughout the present research, squash (cucurbita pepo) slices (0.4 cm thickness and 4 cm diameter) were blanched in a steam chamber for 4 min. following cooling to room temperature, the squash slices were dehydrated by use of a hotair dryer, under air temperature of 60°c up to moisture content of 0.1065 kg h2o per kg d.m. squash slices of specified weights were rehydrated by immersion in dist...

Journal: :ماشین های کشاورزی 0
مجید رسولی صادق سیدلو

garlic (allium sativuml.) is one of the most important allium spice. from an economic point of view, the dried garlic slices are valuable products. in this research, garlic slices as a thin layer were dried in a laboratory scale hot-air dryer, under air flow of 1.5 m/s, air temperatures of 50, 60 and 70˚c and slice thicknesses of 2, 3 and 4 mm. the mean values of shrinkage of garlic slices obta...

Introduction: Since Curcuma longa extract and curcumin have been shown to be potent antioxidant agents, they were used in cultured adult mouse spinal cord slices to investigate whether they can inhibit apoptosis in motor neurons. Methods: Slices from the thoracic region of adult mice spinal cord were divided into four groups: 1. Freshlyprepared slices (time 0) 2. Control 3. Slices treated by cu...

2005
Jonathan Thornburg

Event and apparent horizons are key diagnostics for the presence and properties of black holes. In this article I review numerical algorithms and codes for finding event and apparent horizons in numerically-computed spacetimes, focusing on calculations done using the 3 + 1 ADM formalism. The event horizon of an asymptotically-flat spacetime is the boundary between those events from which a futu...

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