Results 71 to 80 of about 737,442 (312)

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

open access: yesFEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata   +13 more
wiley   +1 more source

Model tests on stability and ultimate support pressure of shield tunnel in sand-gravel composite stratum

open access: yesYantu gongcheng xuebao, 2020
For the shield-tunneling in sand-gravel composite stratum, if the support force is too small, it will easily lead to active destruction of soils in front of the excavation face and cause surface settlement.
SONG Yang 1, WANG Wei-yi 2, DU Chun-sheng 3
doaj   +1 more source

Probable solar flare doses encountered on an interplanetary mission as calculated by the MCFLARE code [PDF]

open access: yes, 1971
The computer program, MCFLARE, uses Monte Carlo methods to simulate solar flare occurrences during an interplanetary space voyage. The total biological dose inside a shielded crew compartment due to the flares encountered during the voyage is determined.
Karp, I. M., Lahti, G. P.
core   +2 more sources

Shielding Effectiveness of Laminated Shields

open access: yesRadioengineering, 2008
Shielding prevents coupling of undesired radiated electromagnetic energy into equipment otherwise susceptible to it. In view of this, some studies on shielding effectiveness of laminated shields with conductors and conductive polymers using plane-wave theory are carried out in this paper.
Jayasree, P. V. Y.   +2 more
openaire   +2 more sources

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

open access: yesFEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová   +2 more
wiley   +1 more source

Evaluation of Mail Horse-Armour

open access: yesEXARC Journal, 2022
This study was undertaken to gain an understanding of the effectiveness of mail armour in protecting horses against arrow shot, and to assess the circumstances in which such armour might play a useful role.
David Jones, Emma Herbert-Davies
doaj  

Improved heat shield/radiator [PDF]

open access: yes, 1970
Thermally conductive metal shield is put in direct thermal contact with the mounting plate for the radiation detectors. External surfaces of the shield are insulated by an insulation blanket.
Smith, J. W.
core   +1 more source

Re‐Awakening Public Attention to the Silent Pandemic of Cancer Among Older Adults in Low‐ and Middle‐Income Countries

open access: yesAging and Cancer, EarlyView.
ABSTRACT As global populations age, cancer is increasingly becoming a leading cause of morbidity and mortality among older adults, particularly in low‐ and middle‐income countries (LMICs). Despite accounting for the majority of new cancer cases and deaths, older individuals remain underrepresented in cancer research, clinical guidelines, and health ...
Ibrahim Bidemi Abdullateef   +2 more
wiley   +1 more source

Determination of Radiation Shielding Features of Polyvinyl Alcohol/Magnetite-Bismuth Oxide Composite Using Precise Computational Methods and Monte Carlo Code [PDF]

open access: yesIranian Journal of Medical Physics
Introduction: Bismuth efficiency in shielding superficial tissues in computed tomography (CT) scans has been challenged due to the imbalance between image quality and dose reduction.
Fariba Baroonzadeh   +3 more
doaj   +1 more source

Shield weight optimization using Monte Carlo transport calculations [PDF]

open access: yes, 1971
Outlines are given of the theory used in FASTER-3 Monte Carlo computer program for the transport of neutrons and gamma rays in complex geometries. The code has the additional capability of calculating the minimum weight layered unit shield configuration ...
Jordan, T. M., Wohl, M. L.
core   +2 more sources

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