نتایج جستجو برای: 241

تعداد نتایج: 6429  

Journal: :Astronomy and Astrophysics Supplement Series 2000

2017
Dominique R. Malacarne Leslie R. Boyd Yang Long Stephanie V. Blank

BACKGROUND Risk-reducing bilateral salpingo-oophorectomy (RRBSO) increases survival in patients at high risk of developing ovarian cancer. While many general gynecologists perform this procedure, some argue it should be performed exclusively by specialists. In this retrospective observational study, we identified how often optimal techniques were used and whether surgeons' training impacted imp...

2012
P. Gokulakrishnan R. R. Kumar B. D. Sharma S. K. Mendiratta D. Sharma O. P. Malav

Aim: The objective of this study was to develop a simplified, efficient, and accurate protocol for sexing of cattle meat based on the amelogenin (AMELX/AMELY) gene using PCR technique which is superior to earlier work in terms of band patterns. Materials and Methods: Based on the amelogenin gene located on the conservation region of X and Y chromosomes, a pair of primers was designed and the sy...

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2002
Mariana C Stern David M Umbach Ruth M Lunn Jack A Taylor

DNA repair efficiency varies among individuals, with reduced repair capacity as a risk factor for various cancers. This variability could be partly explained by allelic variants for different DNA repair genes. We examined the role of a common polymorphism in the XRCC3 gene (codon 241: threonine to methionine change) and bladder cancer risk. This gene plays a role in the homologous recombination...

Journal: :Cancer research 1992
L S Rittmann-Grauer M A Yong V Sanders D G Mackensen

A panel of monoclonal antibodies (MAbs) to P-glycoprotein was developed by immunization of mice with multidrug-resistant human neuroepithelioma and neuroblastoma cells. All the anti-P-glycoprotein MAbs reacted with the extracellular portion of P-glycoprotein. The MAbs were examined for their ability to enhance accumulation of actinomycin D, vincristine, vinblastine, and doxorubicin in the human...

2015
Guosheng Yang Jian Zheng Keiko Tagami Shigeo Uchida

Obtaining Pu background data in the environment is essential for contamination source identification and assessment of environmental impact of Pu released from the Fukushima Daiichi nuclear power plant (FDNPP) accident. However, no baseline information on Pu isotopes in Fukushima Prefecture has been reported. Here we analyzed 80 surface soil samples collected from the central-eastern Japan duri...

Journal: :Journal of environmental radioactivity 2003
M Pourchet O Magand M Frezzotti A Ekaykin J-G Winther

A detailed and comprehensive map of the distribution patterns for both natural and artificial radionuclides over Antarctica has been established. This work integrates the results of several decades of international programs focusing on the analysis of natural and artificial radionuclides in snow and ice cores from this polar region. The mean value (37+/-20 Bq m(-2)) of (241)Pu total deposition ...

Journal: :Japanese Journal of Radiological Technology 1992

Journal: :Materials research express 2023

Abstract The industrial production of 3D printing is known as additive manufacturing (AM), in which a computer controls the process producing objects. Although x-ray computed radiography (XCT) extensively used quality control and testing products, gamma-ray capabilities for these applications still need to be investigated. This study aimed evaluate performance using americium-241 (Am-241) gamma...

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