Results 61 to 70 of about 6,281,328 (344)

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Estimation of effective doses to whole-bodies and hands of facilitating staff from radioiodine-131 ablation therapy patients

The Egyptian Journal of Radiology and Nuclear Medicine
Background Workers in the field of radiation therapy are exposed to radiation hazards, and it is necessary to take precautions to limit the radiation dose to nursing staff and physicists.
Abdulrahman Mofreh Al-Esaei, Emran Eisa Saleh, Sharief El Maghraby, Tamer Mahmoud Elsayed, Amr Mohamed Ismail Kany   +4 more
doaj   +1 more source

Korean-specific dose coefficients for external environmental exposures: Soil contamination

Nuclear Engineering and Technology
In this study, we first produced the Korean-specific dose coefficients (DCs) for soil contamination using the Mesh-type Reference Korean Phantoms (MRKPs).
Ji Won Choi, Yumi Lee, Bangho Shin, Chansoo Choi, Yeon Soo Yeom   +4 more
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Korean-specific dose coefficients for external environmental exposures: Water contamination

Nuclear Engineering and Technology
The present study produced a comprehensive dataset of Korean-specific organ equivalent dose coefficients (DCs) for 29 radiosensitive organs and effective DCs for water contamination, thereby completing a series following our previous assessments for soil
Chansoo Choi, Bangho Shin, Yumi Lee, Yeon Soo Yeom   +3 more
doaj   +1 more source

Radiation environment for rendezvous and docking with nuclear rockets [PDF]

, 1972
Radiation environment data for the NERVA engine are provided which may be utilized in estimating radiation exposures associated with various space maneuvers.
Lindsey, B. A., Rogers, D. R., Warman, E. A.   +2 more
core   +2 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

IMPLEMENTATION OF MECHANICAL DECONTAMINATION FOR REDUCTION OF EXTERNAL EXPOSURE AT THE TERRITORY OF THE BRYANSK REGION

Радиационная гигиена, 2017
The paper contains a review of the data relevant to the technologies and some results of the mechanical decontamination of the ground and buildings located at the territory of two recreational areas in the Bryansk Region.
V. P. Ramzaev, A. N. Barkovsky, A. S. Mishin, B. F. Vorobiev, K. G. Andersson   +4 more
doaj  

Predicting chemical environments of bacteria from receptor signaling [PDF]

, 2014
Sensory systems have evolved to respond to input stimuli of certain statistical properties, and to reliably transmit this information through biochemical pathways.
Clausznitzer, Diana, Endres, Robert G., Micali, Gabriele, Neumann, Silke, Sourjik, Victor   +4 more
core   +3 more sources

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source