Results 61 to 70 of about 1,375,226 (323)

How to Weigh a Star Using a Moon

, 2010
We show that for a transiting exoplanet accompanied by a moon which also transits, the absolute masses and radii of the star, planet and moon are determinable. For a planet-star system, it is well known that the density of the star is calculable from the
Agol, Andersen, Baines, Baraffe, Borucki, Carter, David M. Kipping, Domingos, Holman, Kipping, Kipping, Kipping, Kipping, Lovis, Murray, Namouni, Podsiadlowski, Sartoretti, Sato, Seager, Simon, Snellen, Torres, Valencia, Williams, Yi   +25 more
core   +1 more source

Artificial Modulation of the Hydrogen Evolution Reaction Kinetics via Control of Grain Boundaries Density in Mo2C Through Laser Processing

Advanced Functional Materials, EarlyView.
A laser‐driven strategy enables precise microstructural modulation of Mo₂C, achieving nanoscale grain control (15.6 ± 5 nm) and an ultrahigh grain boundary density (130 µm−1). Moreover, high‐angle grain boundaries enhance active sites, facilitate electron transport, and optimize hydrogen adsorption kinetics, significantly reducing overpotential.
Seok‐Ki Hyeong, Byung Joon Moon, Aram Lee, Min Ji Im, Hee Yun Yang, Ji‐Hee Choi, Seung‐Il Kim, Ji‐Yun Moon, Seoungwoong Park, Sung Kyu Jang, Tae‐Wook Kim, Jae‐Hyun Lee, Sukang Bae, Seoung‐Ki Lee   +13 more
wiley   +1 more source

Community-based interventions against HIV-related stigma: a systematic review of evidence in Sub-Saharan Africa

Systematic Reviews
Background HIV-related stigma remains a key barrier to the attainment of the UNAIDS global goal of ending AIDS by 2030. Due to the social and contextual nature of HIV-related stigma, community-based interventions may be more effective in addressing it ...
Emmanuel Kimera, Linda Grace Alanyo, Irumba Pauline, Maureen Andinda, Enos Masereka Mirembe   +4 more
doaj   +1 more source

Reconstructing the late-accretion history of the Moon [PDF]

Nature, 2019
The importance of highly siderophile elements (HSEs; namely, gold, iridium, osmium, palladium, platinum, rhenium, rhodium and ruthenium) in tracking the late accretion stages of planetary formation has long been recognized. However, the precise nature of
Meng‐Hua Zhu, N. Artemieva, A. Morbidelli, Q. Yin, H. Becker, K. Wünnemann   +5 more
semanticscholar   +1 more source

Superionic Disulfonic Acid Polymers

Advanced Functional Materials, EarlyView.
A strategy is presented to enhance the mechanical and ion transport properties of acid‐functionalized polymers through controlled polymerizations of precisely designed disulfonic acid monomers with well‐defined functional group arrangements. This approach allows for fine control over molecular interactions, and unexpected hydrophobic characteristics ...
Xuelang Gao, Hojun Lee, Woongsik Choi, Yunsoo Shim, Hyung Min Chi, Moon Jeong Park   +5 more
wiley   +1 more source

Unveiling Synergies Among University Partners in Developing a Dairy App in Uganda: An In-Depth Exploration of the Design Thinking Process from Ideation to Prototyping and Testing

Journal of Community Engagement and Scholarship
A common goal drives university-community engagement: understanding local community challenges and collaboratively developing solutions. Recent studies highlight co-creation benefits, yet partner involvement is often insufficient, leading to ineffective
Alice Sheila Nanyanzi, Leo Van Audenhove, Justice Mugenyi Kintu, Mark Kaahwa, Ivo De Pauw, Chang Zhu   +5 more
doaj   +1 more source

Analyzing LDEX's Current Measurements in Lunar Orbit

The Planetary Science Journal, 2023
The Lunar Dust Experiment (LDEX) on board the Lunar Atmosphere and Dust Environment Explorer mission orbited the Moon from 2014 September to 2015 April and observed a dynamic, permanently present dust cloud produced by continual meteoroid bombardment. In
Edwin Bernardoni, Mihály Horányi, Jamey R. Szalay   +2 more
doaj   +1 more source

Eco‐Fabricated Nanowave‐Textured Implants Drive Microtubule‐Assisted Nuclear Mechanotransduction and Chromatin Modification: Biophysical Priming for Osteogenesis and Bone Regeneration

Advanced Functional Materials, EarlyView.
Eco‐friendly nanowave‐textured implants produced via femtosecond laser fabrication enhance bone regeneration by orchestrating a precise mechanotransduction cascade. This nanotopography directs mesenchymal stem cell alignment and cytoskeletal organization, triggering changes in nuclear shape and chromatin acetylation that prime cells for osteogenesis ...
Bosu Jeong, Ji‐Young Yoon, Junyong Ahn, Byunghak Lee, Sung‐Min Park, Jae‐Heon Kim, Buuvee Bayarkhangai, Yu Jin Kim, Sak Lee, Jonathan C. Knowles, Moon‐Young Kim, DongJun Lee, Sang‐Hoon Rhee, Hae‐Hyoung Lee, Hae‐Won Kim, Jung‐Hwan Lee   +15 more
wiley   +1 more source

FINANCIAL SECURITY OF THE DEVELOPMENT NEW ECONOMY

Мир новой экономики, 2018
The article is devoted to the financial support of the development of the new economy (on the example of space activities). The author shows that space activities relate to a very promising area of economic activity, they are a powerful generator of ...
VLADIMIR GAVRILOVICH Starovoytov
doaj  

Youth living with HIV/AIDS in secondary schools: perspectives of peer educators and patron teachers in Western Uganda on stressors and supports

SAHARA-J, 2019
As Youth Living With HIV/AIDS (YLWHA) continue to survive and live with HIV chronically due to effective Antiretroviral Therapy (ART), it is paramount to work toward maximising their psychosocial wellbeing.
Emmanuel Kimera, Sofie Vindevogel, John Rubaihayo, Didier Reynaert, Jessica De Maeyer, Anne-Mie Engelen, Johan Bilsen   +6 more
doaj   +1 more source