For reasons of phantom material reproducibility, the absorbed dose protocols of the American Association of Physicists in Medicine (AAPM) (TG-51) and the International Atomic Energy Agency (IAEA) (TRS-398) have made the use of liquid water as a phantom material for reference dosimetry mandatory. In this work we provide a formal framework for the measurement of absorbed dose to water using ioniz...

A phage, designated CP-51, that carries out generalized transduction in Bacillus cereus and B. anthracis, has recently been isolated from soil. Transducing phages for members of the genus Bacillus have been described previously for B. subtilis and B. licheniformis (2-6). Those that have been best characterized are PBS-1 for B. subtilis (4) and SP-10 and SP-15 for both B. subtilis and B. licheni...

Transducing bacteriophages CP-51 and CP-53 were compared. Unlike CP-51, CP-53 appeared to be a lysogenizing phage. CP-51 gave greater frequencies of co-transduction for linked markers than did CP-53. CP-51 was found to be a larger phage which carried more deoxyribonucleic acid (DNA) than CP-53. CP-51 DNA contained about 43% guanine plus cytosine and in addition contained 5-hydroxymethyluracil i...

Four patterns intended to support the development of embedded systems are presented in this paper. These patterns are written for developers of software, and some associated hardware, for the ubiquitous 8051 family of microcontrollers. There are primarily intended to assist software developers who have experience in ‘desktop’ software development (in C or a related language) in the process of a...

The relative rate at which ribosomal protein 51 (rp51) mRNA is synthesized was measured by pulse-labeling cells in vivo with [3H]adenine. Two strains of Saccharomyces cerevisiae were compared: A364A (wild type) and ts368 (rna2), a temperature-sensitive strain in which the level of rp51 mRNA decreases and an intron-containing rp51 precursor RNA increases. When cells were shifted up to the nonper...

وراثت مقاومت سفیدبالک گلخانه، Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae)، به دو ترکیب ایمیداکلوپرید و کلرپایریفوس مورد مطالعه قرار گرفت. در این پژوهش، از جمعیت فیلستان ورامین (FL) عنوان والد مقاوم فردیس کرج (FR) حساس استفاده شد. مقدار ترتیب حدودا 62/13 91/14 برابر بود. عدم وجود اختلاف معنی‌دار LC50 روی تلاقی‌های F1 (R♂×S♀) Fʹ1 (R♀×S♂) نشان داد که T. نوع اتوزومی (غیرجنسی) است. ه...