نتایج جستجو برای: symmetrical and asymmetrical cells
تعداد نتایج: 17078311 فیلتر نتایج به سال:
A framework to study interlimb coordination, which allowed the analysis of all the symmetrical and asymmetrical gaits, was recently proposed. It suggests that gait depends on a common basic pattern controlling the coordination of the forelimbs (fore lag, FL), the coordination of the hindlimbs (hind lag, HL) and the relationship between these two pairs of limbs (pair lag, PL) in an anteroposteri...
Recently, differential-signaling (DS) techniques such as low-voltage differential-signaling (LVDS) have been widely used in digital electronics devices in order to suppress electromagnetic interference (EMI). But in practical terms, a complete topologically and structurally symmetrical differential line is impossible. In this paper, we newly attempt to quantify the imbalance component and elect...
Symmetry perception by poultry chicks and its implications for three-dimensional object recognition.
Bilateral symmetry is visually salient to diverse animals including birds, but whereas experimental studies typically use bilaterally symmetrical two-dimensional patterns that are viewed approximately fronto-parallel; in nature, animals observe three-dimensional objects from all angles. Many animals and plant structures have a plane of bilateral symmetry. Here, we first (experiment I) give evid...
In this work, we investigated the ability of impedance flow cytometry to measure shape single cells/particles. We found that pulses triggered by micro-objects are asymmetric in morphology show a tilting trend, and there is no such trend for symmetric ones. Therefore, proposed new metric, tilt index, quantify level pulses. Through simulation, value index tends be zero perfectly symmetrical objec...
Rationale: According to the immortal DNA strand hypothesis, dividing stem cells selectively segregate chromosomes carrying the old template DNA, opposing accumulation of mutations resulting from nonrepaired replication errors and attenuating telomere shortening. Objective: Based on the premise of the immortal DNA strand hypothesis, we propose that stem cells retaining the old DNA would represen...
The present study applied network analysis to scrutinize spatial behavior of rats tested with symmetrical or asymmetrical layout of 4, 8, or 12 objects along the perimeter of a dark, round arena. We considered locations as the units of a network (nodes), and passes between locations as the connections of the network. In terms of Ethovision parameters, there were only minor differences between r...
OBJECTIVE To determine how symmetric (proportionate; SGR) and asymmetric (disproportionate; AGR) growth restriction influence growth and development in preterms from birth to 4 years. METHODS This community-based cohort study of 810 children comprised 86 SGR, 61 AGR, and 663 non-growth restricted (NGR) preterms, born in 2002 and 2003. Symmetrical growth restriction was defined as a birth weig...
The salience of bilateral symmetry to humans has led to the suggestion that camouflage may be enhanced in asymmetrical patterns. However, the importance of bilateral symmetry in visual signals (and overall morphology) may constrain the evolution of asymmetrical camouflage, resulting in the bilaterally symmetrical cryptic patterns that we see throughout the animal kingdom. This study investigate...
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