نتایج جستجو برای: def

تعداد نتایج: 1987  

Journal: :iranian journal of radiation research 0
m. kattan atomic energy commission of syria, department of radiation technology,accuracy of measurements division, p.o. box 6091, damascus, syria h. alkassiri atomic energy commission of syria, department of radiation technology,accuracy of measurements division, p.o. box 6091, damascus, syria y. daher atomic energy commission of syria, department of radiation technology,accuracy of measurements division, p.o. box 6091, damascus, syria

background: dosimetry is a fundamental part of the radiation processing industry. aqueous inorganic dosimeters have been used for gamma radiation dosimetry such as standard ferrous sulfate dosimeter. the purpose of this study was to investigate the effect of gamma radiation on the diethyl fumarate def in dimethyl sulfoxide dmso solution and its possible use in chemical dosimetry. materials and ...

Journal: :Selcuk Universitesi Hukuk Fakultesi Dergisi 2008

Journal: :iranian journal of radiation research 0
s.h. mousavie anijdan department of medical physics and engineering, school of medicine, tehran university of medical sciences, tehran, iran a. shirazi department of medical physics and engineering, school of medicine, tehran university of medical sciences, tehran, iran s.r. mahdavi department of medical physics and engineering, school of medicine, tehran university of medical sciences, tehran, iran a. ezzati department of energy engineering, sharif university of technology, tehran, iran b. mofid department of radiation oncology, shahid beheshti university of medical sciences, tehran, iran s. khoei department of medical physics and engineering, school of medicine, tehran university of medical sciences, tehran, iran

background: gold nanoparticles (gnps) have been shown as a good radiosensitizer. in combination with radiotherapy, several studies with orthovoltage x-rays have shown considerable dose enhancement effects. this paper reports the dose enhancement factor (def) due to gnps in 18 megavoltage (mv) beams. materials and methods: different geometrical 50-nm gnps configurations at a concentration of 5 m...

Journal: :Development 1995
S Zachgo E de A Silva P Motte W Tröbner H Saedler Z Schwarz-Sommer

Flowers of the temperature-sensitive DEFICIENS (DEF) mutant, def-101, display sepaloid petals and carpelloid stamens when grown at 26 degrees C, the non-permissive temperature. In contrast, when cultivated under permissive conditions at 15 degrees C, the morphology of def-101 flowers resembles that of the wild type. Temperature shift experiments during early and late phases of flower developmen...

Journal: :Ciencia Florestal 2023

The Cerrado-Amazon Transition region has a high deforested area in Brazil. Given the importance of forest maintaining climate this region, were evaluated patterns micrometeorological variables forested and areas Mato Grosso, Precipitation, solar radiation, average, minimum maximum air temperature, relative humidity, soil temperature wind speed measured into (FOR) (DEF). Precipitation studied hy...

Journal: :The Journal of biological chemistry 2006
Yannick Gueguen Amaury Herpin André Aumelas Julien Garnier Julie Fievet Jean-Michel Escoubas Philippe Bulet Marcelo Gonzalez Christophe Lelong Pascal Favrel Evelyne Bachère

In invertebrates, defensins were found in arthropods and in the mussels. Here, we report for the first time the identification and characterization of a defensin (Cg-Def) from an oyster. Cg-def mRNA was isolated from Crassostrea gigas mantle using an expressed sequence tag approach. To gain insight into potential roles of Cg-Def in oyster immunity, we produced the recombinant peptide in Escheri...

Journal: :iranian journal of radiation research 0
n. banaee department of engineering, science and research branch, islamic azad university, tehran, iran h.a. nedaie radiotherapy oncology department, cancer research center, cancer institute, tehran university of medical sciences, tehran, iran a.r. shirazi department of medical physics and biomedical engineering, faculty of medicine and radiation oncology research centre, cancer institute, tehran university of medical sciences, tehran, iran a.r. zirak laser and optics research school, nstri, tehran, iran s. sadjadi nuclear science and technology research institute, tehran, iran

background: new treatment modalities are developed with the aim of escalating tumor absorbed dose and simultaneously sparing the normal structures. the use of nanotechnology in cancer treatment offers some possibilities including destroying cancer tumors with minimal damage to healthy tissues. zinc oxide nanoparticles (zno nps) are wide band gap semiconductors and seem to have a good effect on ...

Journal: :Lecture notes in civil engineering 2023

Abstract The high cost of maintenance, repair and retrofitting concrete infrastructure to keep these structures durable serviceable is not sustainable, so the design process needs consider all aspects deterioration mechanism/s that can potentially occur in a structure. ideal solution should contribute sustainability by enhancing durability elements supporting circular economy. We studied delaye...

1992
Waldemar Korczyński

In the sequel M is a Petri net. Let us consider X , Y . Let us assume that X misses Y . The functor PTempty f (X ,Y ) yielding a strict Petri net is defined by: (Def. 4)2 PTempty f (X ,Y ) = 〈X ,Y, / 0〉. Let us consider X . The functor Tempty f (X) yields a strict Petri net and is defined by: (Def. 5) Tempty f (X) = PTempty f (X , / 0). The functor Pempty f (X) yields a strict Petri net and is ...

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