نتایج جستجو برای: adaptive
تعداد نتایج: 198990 فیلتر نتایج به سال:
Background: Radio-adaptive response and bystander effects are known phenomena occurring in cells following exposure to ionizing radiation (IR). In this study we examined possible radio-adaptation of lymphocytes following bystander effects induced by CHO-K1 cells. Materials and Methods: Whole blood and CHO-K1 cells were cultured in RPMI-1640 complete medium. Cells were separately irradiated with...
An adaptive unstructured grid generation scheme is introduced to use finite volume (FV) and finite element (FE) formulation to solve the heat equation with singular boundary conditions. Regular grids could not acheive accurate solution to this problem. The grid generation scheme uses an optimal time complexity frontal method for the automatic generation and delaunay triangulation of the grid po...
Robust adaptive estimation of unknown parameter has been an important issue in recent years for reliable operation in the distributed networks. The conventional adaptive estimation algorithms that rely on mean square error (MSE) criterion exhibit good performance in the presence of Gaussian noise, but their performance drastically decreases under impulsive noise. In this paper, we propose a rob...
Chronic increases in arterial blood flow elicit an adaptive response of the arterial wall, leading to vessel enlargement and reduction in wall shear stress to physiological baseline value. Release of nitric oxide from endothelial cells exposed to excessive shear is a fundamental step in the remodeling process, and potentially triggers a cascade of events, including growth factor induction and m...
Background & Aim: Personality traits and motivational structure are important and influential factors in adolescent decision making. In this regard, the adolescent's perception of parenting style has an important role in his/her orientations. The purpose of this study was to investigate the role of perception of parenting style in relationship between motivational structure and personality trai...
Background: Marital conflict can be described as the state of tension or stress between couples. Accordingly, couples who are unable to regulate their negative emotions experience fragile relationships. This study aimed to compare the effects of Emotion-Focused Couple Therapy (EFCT) and Acceptance and Commitment Therapy (ACT) on Cognitive Emotion Regulation (CER) strategies and marital conflict...
Introduction: Electrocardiogram (ECG) is a method to measure the electrical activity of the heart which is performed by placing electrodes on the surface of the body. Physicians use observation tools to detect and diagnose heart diseases, the same is performed on ECG signals by cardiologists. In particular, heart diseases are recognized by examining the graphic representation of heart signals w...
Background and Objective: Different studies have shown that emotional disclosure by writing in order to express affective and emotional experiences would decline negative affect, inhibition, and would help to select adaptive behaviors by infusing into the self. Thus, this research investigated whether instructing emotional disclosure by writing and applying more adaptive defense mechanisms decl...
Introduction: The aim of the study was to investigate the structural and hemodynamic changes as well as cardiac transcriptional profile of the key regulatory proteins, sirtuins family (SIRT1-7), in adaptive and mal-adaptive phases of left ventricular hypertrophy (LVH). Methods: LVH was induced in male Wistar rats (190±20g) by abdominal aortic banding. The third and sixteenth weeks post-surgery ...
Background: Over the past few years, the rapid use of high frequency electromagnetic fields like mobile phones has raised global concerns about the negative health effects of its use. Adaptive response is the ability of a cell or tissue to better resist stress damage by prior exposure to a lesser amount of stress. This study aimed to assess whether radiofrequency radiation can induce adaptive r...
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