نتایج جستجو برای: clock
تعداد نتایج: 47430 فیلتر نتایج به سال:
a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...
background: the mammalian ovary is controlled by a number of biological rhythms, which regulate the recruitment and release of mature oocytes. the main objective of this study was to investigate the role of cellular clock proteins during follicle maturation in the mouse estrous ovary. methods: immunohistochemical (ihc) studies were performed on ovaries from 50 estrous staged mice culled at two ...
introduction: the utility and discriminatory pattern of the clock face drawing test in adhd is unclear. this study therefore compared clock face drawing test performance in children with adhd and controls. methods: 95 school children with adhd and 191 other children were matched for gender ratio and age. adhd symptoms severities were assessed using dsm-iv adhd checklist and their intellectual f...
Introduction: The utility and discriminatory pattern of the clock face drawing test in ADHD is unclear. This study therefore compared Clock Face Drawing test performance in children with ADHD and controls. Methods: 95 school children with ADHD and 191 other children were matched for gender ratio and age. ADHD symptoms severities were assessed using DSM-IV ADHD checklist and their intellectua...
Like the biological clock in the body, replication of each cell type (even different cells of the same organism) follows a timing program. Abnormal function of this timer could be an alarm for a disease like cancer. DNA replication starts from a specific point on the chromosome that is called the origin of replication. In contrast to prokaryotes in which DNA replication starts from a single ...
Objectives : The present research was aimed to determine the clock drawing pattern in children with and without dyscalculia, and to assess Clock Drawing Test (CDT) as a screening measure in Iranian children population. Method: In current ex post facto study, 45 children with dyscalculia aged 9.5-11.7 years and 45 normal controls matched for age, gender, handedness, grades and IQ were selected...
In this paper, an Ultra High Frequency (UHF) base band processor for a passive tag is presented. It proposes a Radio Frequency Identification (RFID) tag digital base band architecture which is compatible with the EPC C C2/ISO18000-6B protocol. Several design approaches such as clock gating technique, clock strobe design and clock management are used. In order to reduce the area Decimal Matrix C...
Saving energy is one of the most important challenges of todaychr('39')s world. Reducing electrical energy consumption in compressed air systems is one of the essential requirements for designing these systems. When using domestic air conditioners (dual air conditioners) in very hot areas (Khuzestan) their performance decreases and electric current consumption increases. Therefore, the use of n...
The 2017 Nobel Prize for medicine was awarded the biological clock Scientist, which shows the importance of this phenomenon in the life of living organisms. The circadian Rhythm (CR) through the created internal “clock” is responsible for regulating the daily performance of different organs of the body. The central body clock is the key factor to creating and maintaining this CR. External optic...
Clock-dependent probabilistic timed automata extend classical with discrete choice, where the probabilities are allowed to depend on exact values of clocks. Previous work has shown that quantitative reachability problem for clock-dependent at least three clocks is undecidable. In this paper, we consider subclass have one clock, clock dependencies described by affine functions, and satisfy an in...
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