نتایج جستجو برای: printing factories
تعداد نتایج: 37012 فیلتر نتایج به سال:
In Nigeria, the factories ACTS of 1955, came into force on 1st September 1956, the factories (Amendment) ordinance, 1458, which came into operation on 1st April, 1959 made slight changes in some section of the original Act. And again in 1984, yet more changes were made in the factories Act. The factory Act lays down in general terms the minimum standard for safety, health and welfare of factory...
There is considerable evidence that transcription does not occur homogeneously or diffusely throughout the nucleus, but rather at a number of specialized, discrete sites termed transcription factories. The factories are composed of ~4-30 RNA polymerase molecules, and are associated with many other molecules involved in transcriptional activation and mRNA processing. Some data suggest that the p...
The basic structural elements of chromatin and chromosomes are reviewed. Then a model involving only three architectural motifs, nucleosomes, chromatin loops and transcription factories/chromomeres, is presented. Loops are tied through transcription factors and RNA polymerases to factories during interphase and to the remnants of those factories, chromomeres, during mitosis. On entry into mitos...
The evolution of B-Factories is discussed, and comments are made about the common features of present-day asymmetric storage ring collider designs. * Work supported by Department of Energy contract DE-AC03-76SF00515. Presented at the 4th International Symposium on Heavy E’lavour Physics, Orsay, France, June 25-29, 1991 There was a symposium Progress on B-Factories the day before the Heavy Flavo...
There is increasing evidence that different transcription units are transcribed together in discrete nuclear structures known as transcription factories. Various new techniques enable us to detect and characterize these structures. We review the latest findings and discuss how they support a model for transcription and chromosome organization.
Breast cancer is considered as one of the main causes of cancer death in women. Early diagnosis and treatment, especially by modern technologies play major roles in management of breast cancer. Radiation therapy is known as one of the main treatment options for breast cancer. Nowadays, 3D printing technology is also used to rapidly construct objects with high quality. Many studies have shown th...
To find out the prevalence of good knowledge, appropriate attitude and safe practice among printing workers exposed to organic solvents in Hong Kong, and to see if safe practice was influenced by the knowledge of and the attitude towards the harmful effects of organic solvents as well as other factors. The survey was conducted in a sample of 501 male printing workers from 28 factories in Hong K...
Background : Given the large amount of gaseous and aerosol pollutants produced by the printing press industry, the indoor and outdoor air quality of such centers in Khorramabad, Iran was assessed. Methods and Materials: In a descriptive study, five gaseous pollutants from among criteria air pollutants (CO, NO, NO2, SO2, O3) and volatile organic compounds (VOCs) were measured. Overall, 360 sa...
The present investigation was prompted by the Northamptonshire Miniature MassRadiography Survey of 1945a-46. One of the findings of this survey, as presented by Smith (1947), was a significantly higher proportion of newly-discovered cases of active pulmonary tuberculosis* among boot and shoe factory workers than among workers in other trades. In July, 1947, the manufacturers asked for an invest...
background: anecdotal information has suggested that sodium benzoate is used with more than permissible doses during production steps of food products especially pickles and pickled cucumbers in food producing factories in markazi province and other food producing factories . the present study was done to evaluate factual concentration of sodium benzoate in these products. methods: in this stud...
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