نتایج جستجو برای: 226 ra and 137 cs

تعداد نتایج: 16836461  

2016
Masaharu Tsubokura Shuhei Nomura Kikugoro Sakaihara Shigeaki Kato Claire Leppold Tomoyuki Furutani Tomohiro Morita Tomoyoshi Oikawa Yukio Kanazawa

OBJECTIVES Measurement of soil contamination levels has been considered a feasible method for dose estimation of internal radiation exposure following the Chernobyl disaster by means of aggregate transfer factors; however, it is still unclear whether the estimation of internal contamination based on soil contamination levels is universally valid or incident specific. METHODS To address this i...

B. Fouladi Dehaghi, J. Deris,

Background: Naturally occurring radioactivity is a root cause of human exposure to harmful radiation. The occupational exposure hazard due to natural radionuclides occurring in drilling wastes is especially important in this regard. In this study the concentration of radionuclides namely 232Th, 226Ra and 40K were assessed in soil samples that were taken from various oil drilling areas. Methodol...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
John N Smith Robin M Brown William J Williams Marie Robert Richard Nelson S Bradley Moran

The large discharge of radioactivity into the northwest Pacific Ocean from the 2011 Fukushima Dai-ichi nuclear reactor accident has generated considerable concern about the spread of this material across the ocean to North America. We report here the first systematic study to our knowledge of the transport of the Fukushima marine radioactivity signal to the eastern North Pacific. Time series me...

Journal: :Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology 2015
Mustafa Cetin Musa Cakici Cemil Zencir Hakan Tasolar Ercan Cil Emrah Yıldız Mehmet Balli Sabri Abus Erdal Akturk

INTRODUCTION AND OBJECTIVE We investigated the relationship between coronary sinus (CS) diameter and pulmonary artery systolic pressure (PASP) in patients with pulmonary hypertension (PH) and normal left ventricular systolic function. METHODS A total of 155 participants referred for transthoracic echocardiography were included in the study. The study population consisted of 100 patients with ...

Journal: :Undergraduate Research in Natural and Clinical Science and Technology (URNCST) Journal 2018

2007
J. Cardoso L. Santos C. Oliveira

The primary standard for air kerma for the gamma radiation of Cs-137, of the Metrological Laboratory of Ionising Radiation (LMRI), is an ionisation chamber of the type CC01. This instrument was, for the first time, used to characterize the radiation field, in terms of air kerma, produced by a Cs-137 source in an irradiator Shepherd model 81, used mainly for radiation protection calibration purp...

2016
Maryam Goudarzi Siddheshwar Chauthe Steven J. Strawn Waylon M. Weber David J. Brenner Albert J. Fornace

With the safety of existing nuclear power plants being brought into question after the Fukushima disaster and the increased level of concern over terrorism-sponsored use of improvised nuclear devices, it is more crucial to develop well-defined radiation injury markers in easily accessible biofluids to help emergency-responders with injury assessment during patient triage. Here, we focused on ut...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید