نتایج جستجو برای: tld 100
تعداد نتایج: 415993 فیلتر نتایج به سال:
Important thermoluminescence (TL) properties of five (5) different core sizes Ge-doped optical fibers have been studied to develop new TL material with better response. These are drawn from same preform applying different speed and tension during drawing phase to produce Ge-doped optical fibers with five (5) different core sizes. The results of the investigations are also compared with most com...
Several national and international organizations have developed various types and levels of external audits for radiotherapy dosimetry, either based on on-site review visits or using mailed dosimetry systems. Three major TLD (thermoluminescent dosimetry) networks make available postal dose audits to a large number of radiotherapy centres on a regular basis. These are the IAEA/WHO TLD postal dos...
In 1954, Cohen and Barner discovered that a thymine auxotrophic (thyA) mutant of Escherichia coli undergoes cell death in response to thymine starvation. This phenomenon, called thymineless death (TLD), has also been found in many other organisms, including prokaryotes and eukaryotes. Though TLD has been studied intensively, its molecular mechanism has not yet been explained. Previously we repo...
During early Drosophila embryogenesis, several zygotic gene products act to establish a posttranscriptional activity gradient of the morphogen DPP. Among these molecules, Tolloid, a putative metalloprotease related to BMP-1, enhances DPP function, while SOG, an ortholog of the Xenopus organizer Chordin, inhibits DPP function. Using epistasis tests and a Xenopus secondary axis induction assay, w...
The lack of privacy in DNS and DNSSEC is a problem that has only recently begun to see widespread attention by the Internet and research communities, and the solutions proposed so far only look at a narrow slice of the design space. In this paper we investigate a new approach for a privacy-preserving DNS mechanism that hides query information from root name servers and TLD registries. Our archi...
This work presents a system for detection and tracking humans (Parkinson disease patients in our special case) in their natural home environment observed by a static single color surveillance camera. The purposed method emloys modified TLD tracker. The modifications enable the TLD to track multiple objects of multiple different classes at a time. The TLD can newly benefit from an external objec...
The linearity of thermoluminescence (TL) dose response curve, in low dose levels, is affected by background signals appearing at the tail of the glow curves. The effects of these signals also restrict the use of the high temperature glow peaks in many applications. In this study, a new reading out procedure was presented to reduce the background signals and increase the resolution of the high t...
Desde su creación en 1978 la Escuela de Adultos La Verneda-Sant Martí, situada uno los barrios más desfavorecidos y marginados Barcelona época, las Tertulias Literarias Dialógicas (TLD) han generado transformaciones sociales contextos diversos, diferentes países, con personas diferente nivel socioeconómico educativo distintas edades. entonces desafiado teorías racistas clasistas corrientes pens...
The current research aims to assess the staff and patients’ effective doses during Nuclear medicine (NM) bone scans procedures. administered activity was utilized quantify doses, while personnel’s were quantified using thermoluminescent detectors (TLD-100). average 650 (440 1440) MBq procedures SPECT gamma camera system. annual dose (mSv) estimated be 2.3 (0.1 4.9). typical patient’s 4.9 (3.6 6...
OBJECTIVE To examine the effectiveness and feasibility of an evidence-based treatment for weight loss in children. METHODS A total of 41 children who were overweight and their families were provided a modified version of the Traffic Light Diet (TLD) in an applied setting. Children who received treatment as usual (TAU) constituted a comparison sample. RESULTS Children receiving the modified ...
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