Results 11 to 20 of about 2,379,884 (182)

Improved wear properties of GCr15 steel balls by fabricating a surface Ti diffusion layer using mechanical alloying and NH3·H2O treatment

Journal of Materials Research and Technology, 2023
This work used mechanical alloying combined with NH3·H2O treatment to strengthen GCr15 steel balls. First, GCr15 steel balls with a Ti coating were fabricated by mechanical alloy considering two structures of jars: one is the ordinary jar and the second ...
Xincheng Xie, Zhongning Guo, Jinrui Xiao, Zhongwei Liang, Shan Wei, Wenkang Feng, Zhuan Zhao, Xiaochu Liu   +7 more
doaj   +1 more source

Strengthening Rödl's theorem

Journal of Combinatorial Theory, Series B, 2023
What can be said about the structure of graphs that do not contain an induced copy of some graph H? Rodl showed in the 1980s that every H-free graph has large parts that are very dense or very sparse. More precisely, let us say that a graph F on n vertices is c-restricted if either F or its complement has maximum degree at most cn. Rodl proved that for
Chudnovsky, M, Scott, A, Seymour, P, Spirkl, S   +3 more
openaire   +3 more sources

Multivariate analysis of covariates of adherence among HIV-positive mothers with low viral suppression

AIDS Research and Therapy, 2018
Background As part of efforts to improve the prevention of mother-to-child transmission in Northern Uganda, we explored reasons for poor viral suppression among 122 pregnant and lactating women who were in care, received viral load tests, but had not ...
Tamara Nsubuga-Nyombi, Simon Sensalire, Esther Karamagi, Judith Aloyo, John Byabagambi, Mirwais Rahimzai, Linda Kisaakye Nabitaka, Jacqueline Calnan   +7 more
doaj   +1 more source

Enhancing Performance of Engineering Structures under Dynamic Disasters with ECC–FRP Composites: A Review at Material and Member Levels

Buildings, 2023
Dynamic loadings arising from impact, explosive, and seismic disasters impose high requirements on the performance of engineering structures during service periods.
Debo Zhao, Bin Chen, Jingming Sun
doaj   +1 more source

Improving TB case notification in northern Uganda: evidence of a quality improvement-guided active case finding intervention

BMC Health Services Research, 2018
Background Strategies to identify and treat undiagnosed prevalent cases that have not sought diagnostic services on their own, are necessary to treat TB in patients earlier and interrupt transmission. Late presentation for medical services of symptomatic
Esther Karamagi, Simon Sensalire, Martin Muhire, Herbert Kisamba, John Byabagambi, Mirwais Rahimzai, Frank Mugabe, Upenytho George, Jacqueline Calnan, Dejene Seyoum, Estella Birabwa   +10 more
doaj   +1 more source

Voluntary exercise can strengthen the circadian system in aged mice [PDF]

, 2013
Consistent daily rhythms are important to healthy aging according to studies linking disrupted circadian rhythms with negative health impacts. We studied the effects of age and exercise on baseline circadian rhythms and on the circadian system's ability ...
A Davidson, A Power, A Watanabe, AA Kondratova, AC King, AJ Davidson, AJ Davidson, B Rusak, C Castillo, CJ Guenthner, DE Kolker, DF Swaab, DJ Buysse, DJ Dijk, DJ Foley, DJ Foley, E Satinoff, E. Zimmerman, EK Baehr, F Aujard, G. S. Lall, GJ Tranah, GS Passos, H Albus, H Li, H. Queenan, HT vanderLeest, I. Song, IN Karatsoreos, J Schaap, K Cho, KJ Reid, M Asai, M Harrington, M Münch, M Nagano, M Palomba, M. E. Harrington, MA Grandner, MJ Duncan, MJ Duncan, MU Gillette, MW Greene, MW Marlatt, N Mrosovsky, O Castanon-Cervantes, P. C. Molyneux, PC Yannielli, RD Nebes, S Ancoli-Israel, S Benloucif, S Farajnia, S Kiessling, S Yamazaki, S Yamazaki, S Yamazaki, S. M. Biello, SH Yoo, SJ Aton, SM Biello, T Deboer, T Yoshikawa, T. L. Leise, TA Bedrosian, TA Martino, TA Martino, TJ Nakamura, TL Leise, U Abraham, U Albrecht, VS Valentinuzzi, W Nakamura, Y Tahara, Y Zhang, Y Zhang   +74 more
core   +2 more sources

Quality improvement as a framework for behavior change interventions in HIV-predisposed communities: a case of adolescent girls and young women in northern Uganda

AIDS Research and Therapy, 2018
Background Despite the conventional approaches to HIV prevention being the bedrock for early reductions in HIV infections in Uganda, innovations that demonstrate reduction in risk to infection in vulnerable populations need to be embraced urgently.
Esther Karamagi, Simon Sensalire, Juliana Nabwire, John Byabagambi, Alfred O. Awio, George Aluma, Mirwais Rahimzai, Jacqueline Calnan, Sheila Kyobutungi   +8 more
doaj   +1 more source

Securing guarantees : how nuclear proliferation can strengthen great power commitments [PDF]

, 2018
The number of states with nuclear weapons has grown at a much slower rate than many predicted during the early years of the Cold War. Yet the reasons for this slow rate of proliferation are not well understood.
Phillips, Julianne Nicole
core   +1 more source

Microstructures and strengthening mechanism of 2D laminated structures in Ni balls after high‐speed collisions with 316 L stainless steel

Engineering Reports, 2023
In many cases, due to high surface stress, stress concentration and wear, the metal material starts to fail from the surface. It is necessary to investigate interface evolution characteristics under high‐speed collisions for widely used metal materials ...
Lv Jinlong, Zhou Zhiping, Zhang Shuye
doaj   +1 more source

A Strategic Design Route to Find a Depleted Uranium High-Entropy Alloy with Great Strength

Metals, 2022
The empirical parameters of mixing enthalpy (ΔHmix), mixing entropy (ΔSmix), atomic radius difference (δ), valence electron concentration (VEC), etc., are used in this study to design a depleted uranium high-entropy alloy (HEA).
Weiran Zhang, Yasong Li, Peter K. Liaw, Yong Zhang   +3 more
doaj   +1 more source