Results 31 to 40 of about 661,831 (94)

A bibliographical review on the concept of biological effects of ionizing radiation in Brazilian publications

open access: yesBrazilian Journal of Radiation Sciences, 2021
At the end of the nineteenth century, with the use of ionizing radiation for the benefit of humanity in various sectors of society, its effects on human health became evident.
Gabriel De Lima Gonçalves   +2 more
doaj   +1 more source

Pleistocene planktonic foraminifera at ODP Site 128-798

open access: yes, 1992
ODP Site 798 on the Oki Ridge in the Southern Japan Sea yielded the first continuous and well-preserved record of Pleistocene planktonic foraminifers in the Northwestern Pacific Ocean region. Quantitative analysis of planktonic foraminifers completed for
Tara Kheradyar (6970610)   +1 more
core   +1 more source

Impact of computed tomography parameters on radiation dose in chest imaging: a comparative study between tomographs

open access: yesBrazilian Journal of Radiation Sciences
Due to the declaration of the Covid-19 pandemic by the World Health Organization in 2020, there was a significant increase in imaging exams to evaluate lung problems, these being the organs most affected by the disease. Given this demand, it is essential
Warley Ferreira Felix   +3 more
doaj   +1 more source

Analysis of the swelling kinetic in hydrogels gelled by radiation and by thermal cycling

open access: yesBrazilian Journal of Radiation Sciences, 2021
Hydrogels are cross-linked polymer networks, which are of interest in biomedical applications such as drug delivery system. To achieve successful results in this kind of application it is essential to understand the diffusion mechanisms which are ...
Paola Andrea Bustamante   +4 more
doaj   +1 more source

Composition of organic carbon at ODP Site 128-798

open access: yes, 1992
Organic geochemical and sedimentological investigations have been performed on sediments from ODP Sites 798 and 799 in order to reconstruct the depositional environment in the Japan Sea through late Cenozoic times.
Stein, Ruediger   +3 more
core   +1 more source

Radiation-induced copper oxide formation in a clinical gel composite: a novel approach for dosimetry

open access: yesBrazilian Journal of Radiation Sciences
This research is intended to investigate radiation-induced changes in a clinical gel composite with copper sulfate pentahydrate (CuSO₄·5H₂O). This study aimed to investigate the mechanisms was to understand the mechanisms of interaction between ...
Gabriela Pontes Cardoso   +3 more
doaj   +1 more source

Elemental determination of austenitic stainless steel alloy used as biomaterial by neutron activation analysis

open access: yesBrazilian Journal of Radiation Sciences, 2021
Austenitic stainless steel alloys, mainly those produced according to ISO 5832-1, have received much attention due to their promising characteristics to be used as biomaterials.
Lilian Ninoska Muriel Braguin   +3 more
doaj   +1 more source

(Table 2) Age-depth datums, sedimentation rate and accumulation rates of ODP Site 128-798

open access: yes, 1992
Results of preliminary pollen analyses of 280 samples from selected intervals of cores from Hole 798 on the Oki Ridge in the Sea of Japan (Sections 798A-1H-1 through 798A-3H-3,798B-1H, 798B-13H-1 through 798B-15H-8, and 798C-1H-1 through 798C-1H-3 ...
Heusser, Linda E   +1 more
core   +1 more source

Reference Male Phantom for Internal Dosimetry-RMPID: Physical model in 3D-printing for whole-body counter calibration

open access: yesBrazilian Journal of Radiation Sciences
In vivo internal dosimetry can use a whole-body counter (WBC) to estimate radionuclides' incorporated activity (Bq) in internally contaminated individuals. The WBC must be calibrated to convert the count rate from the detector into activity incorporated
Hirys Sales, Ester Andrade, Bruno Mendes
doaj   +1 more source

Total phenolic compounds of irradiated chia seeds

open access: yesBrazilian Journal of Radiation Sciences, 2021
Chia seeds (Salvia hispanica L.) is a good source of oil, protein, dietary fiber, minerals and polyphenolic compounds. In order to study the influence of the processing methods on the content of phenolic compounds, the objective of this work was to ...
Gabriel Souza Chierentin   +2 more
doaj   +1 more source

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