Results 41 to 50 of about 2,277,571 (305)

Microplastics in the Lung Tissues Associated with Blood Test Index

open access: yesToxics, 2023
Microplastics (MPs) have received a lot of attention and have been detected in multiple environmental matrices as a new environmental hazard, but studies on human internal exposure to MPs are limited.
Shuguang Wang   +13 more
doaj   +1 more source

Special treatment reduces helium permeation of glass in vacuum systems [PDF]

open access: yes, 1966
Internal surfaces of the glass component of a vacuum system are exposed to cesium in gaseous form to reduce helium permeation. The cesium gas is derived from decomposition of cesium nitrate through heating.
Bryant, P. J., Gosselin, C. M.
core   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

The population-attributable fraction for time-dependent exposures and competing risks - A discussion on estimands

open access: yes, 2019
The population-attributable fraction (PAF) quantifies the public health impact of a harmful exposure. Despite being a measure of significant importance an estimand accommodating complicated time-to-event data is not clearly defined.
Bailly, Sebastien   +7 more
core   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

The average accumulated effective doses (1986-2016) for the population of the settlements of the Russian Federation attributed to the zones of radioactive contamination according to the Russian Federation government resolution «on the approval of the ...

open access: yesРадиационная гигиена, 2017
The Chernobyl accident in 1986 being one of the most large-scale radiation accidents in the world led to radioactive contamination of large areas in the European part of the Russian Federation and at the neighboring countries.
G. Ya. Bruk   +13 more
doaj   +1 more source

Potential therapeutic targeting of BKCa channels in glioblastoma treatment

open access: yesMolecular Oncology, EarlyView.
This review summarizes current insights into the role of BKCa and mitoBKCa channels in glioblastoma biology, their potential classification as oncochannels, and the emerging pharmacological strategies targeting these channels, emphasizing the translational challenges in developing BKCa‐directed therapies for glioblastoma treatment.
Kamila Maliszewska‐Olejniczak   +4 more
wiley   +1 more source

MAJOR OUTCOMES OF THE WORK PERFORMED BY ST. PETERSBURG RESEARCH INSTITUTE OF RADIATION HYGIENE AFTER PROFESSOR P. V. RAMZAEV ON THE IMPLEMENTATION OF THE FEDERAL TARGETED PROGRAM “MITIGATION OF THE RADIATION ACCIDENTS’CONSEQUENCES UNTIL 2015” AND OF THE “JOINT ACTIVITIES PROGRAM ON MITIGATION OF THE CHERNOBYL DISASTER WITHIN THE UNION STATE FOR THE PERIOD UNTIL 2016“

open access: yesРадиационная гигиена, 2016
The article presents major results of the work performed by St. Petersburg Research Institute of Radiation Hygiene after Professor P. V. Ramzaev on public contracts signed within the implementation of the Federal targeted program “ Mitigation of the ...
A. N. Barkovskiy   +3 more
doaj  

Internal exposure levels of thyroid 131I in nuclear medical staff

open access: yes环境与职业医学, 2023
BackgroundBased on numerous epidemiological studies, radionuclide 131I can result in thyroid disease. ObjectiveTo study the contamination level of thyroid 131I in 131I treatment associated radiation workers in nuclear medicine departments in Shanghai ...
Bin WANG   +5 more
doaj   +1 more source

X-ray film holder permits single continuous picture of tubing joint [PDF]

open access: yes, 1968
X ray technique produces a clear continuous picture of a welded brazed tubing joint on a single film with one exposure. A stationary X ray source located in the plane of the joint to be inspected, a means of rotating the tube, and a unique internal film ...
Diamond, J. W., Hunt, V., Mikesell, C.
core   +1 more source

Home - About - Disclaimer - Privacy