Results 61 to 70 of about 936,741 (303)

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Korean dose coefficients for external exposures from air contamination

Nuclear Engineering and Technology
In the present study, the Korean-specific dose coefficients (DCs) for air contamination were produced using the adult mesh-type reference Korean phantoms (MRKPs).
Bangho Shin, Chansoo Choi, Yumi Lee, Ji Won Choi, Yeon Soo Yeom   +4 more
doaj   +1 more source

Integration of external and internal dosimetry in Switzerland [PDF]

, 2017
Individual monitoring regulations in Switzerland are based on the ICRP60 recommendations. The annual limit of 20 mSv for the effective dose applies to the sum of external and internal radiation.
Baechler, S., Fischer, G., Frei, D., Jossen, H., Leupin, A., Lörtscher, Y., Mini, R., Otto, T., Schuh, R., Weidmann, U., Wernli, C.   +10 more
core  

Investigation of Natural Effective Gamma Dose Rates case study: Ardabil Province in Iran [PDF]

Gamma rays pose enough energy to form charged particles and adversely affect human health. Since, the external exposure of human beings to natural environmental gamma radiation normally exceeds that from all man-made sources combined, natural background ...
A Bozkurt, F Bouzarjomeheri, F Saghatchi, FH Al-Ghorabie, FS Al-Saleh, H Ahmadi, H Arvela, JS Hughes, JU Ahmed, L Rybach, M Bahreini Tosi, M Charles, M Pollycove, M Sohrabi, MB Tavakoli, MT Bahreini Tousi, MT Bahreini Tousi, S Hazrati, S Hazrati, S Selvasekarapandian   +19 more
core   +3 more sources

External radiotherapy of thyroid cancer [PDF]

, 2001
Differentiated thyroid cancer comprises papillary, mixed papillary-follicular and follicular adenocarcinomas. They are mostly hormone-sensitive and respond to thyroid-stimulating hormone (TSH) suppression. The standard treatment is total thyroidectomy. I-
Dühmke, Eckhart, Pollinger, B.
core   +1 more source

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

A systematic review of treating recurrent head and neck cancer: a reintroduction of brachytherapy with or without surgery. [PDF]

, 2018
Purpose: To review brachytherapy use in recurrent head and neck carcinoma (RHNC) with focus on its efficacy and complication rates. Material and methods: A literature search of PubMed, Ovid, Google Scholar, and Scopus was conducted from 1990 to 2017 ...
Bar-Ad, Voichita, Cognetti, David, Curry, Joseph, Doyle, Laura, Johnson, Jennifer, Keane, William M., Kutler, David, Leiby, Benjamin E., Luginbuhl, Adam J., Rodin, Julianna, Zender, Chad   +10 more
core   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Individual monitoring of occupational external radiation in radiation workers of medical institutions in Jing’an District, Shanghai

Shanghai yufang yixue
ObjectiveTo analyze the individual monitoring results of the radiation workers in Shanghai’s Jing’an District from 2017 to 2023, to assess the occupational protection status as well as to offer scientific references for enhancing occupational health and ...
KUANG Yujie, XIAO Hong, GAO Linfeng, WANG Bin, LU Shunqi   +4 more
doaj   +1 more source

Análise dos registros de dose ocupacional externa no Brasil

Brazilian Journal of Radiation Sciences, 2015
Brazil, a continental country, with actually more than 150,000 workers under individual monitoring for ionizing radiation, has implemented in 1987 a centralized system for storage of external occupational dose.
Claudia Lucia de Pinho Mauricio, Herica Luiza Ramos da Silva, Claudio Ribeiro da Silva   +2 more
doaj   +1 more source