Results 51 to 60 of about 1,457,378 (385)

LOUPE: observing Earth from the Moon to prepare for detecting life on Earth-like exoplanets [PDF]

Philosophical Transactions of the Royal Society A, 2020
LOUPE, the Lunar Observatory for Unresolved Polarimetry of the Earth, is a small, robust spectro-polarimeter for observing the Earth as an exoplanet.
Dora Klindvzi'c, D. Stam, F. Snik, H. J. Hoeijmakers, Michelle Willebrands, T. Karalidi, V. Pallichadath, C. V. Dijk, Marco Esposito Delft University of Technology, Faculty of Electrical Engineering, Leiden University, L. Observatory, U. Bern, Center for Space, Habitability, Ucf Department of Physics, cosine Remote Sensing   +16 more
semanticscholar   +1 more source

Design and Prototyping of Topology‐Optimized, Additively Manufactured Lightweight Components for Space Robotic Systems: A Case Study

Advanced Engineering Materials, EarlyView.
The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos, Grigorios Kostopoulos, Eleni Papadopoulou, Stefanos Voulgaris, Alexandra Tseni, Panteleimon Bakalis, Maria N. Gkara, Chara Ch. Mitropoulou, Georgios Kazakis, Alin Munteanu, Jeremi Gancet, Nikos D. Lagaros   +11 more
wiley   +1 more source

Powering the Galilean Satellites with Moon‐Moon Tides [PDF]

Geophysical Research Letters, 2020
AbstractThere is compelling evidence for subsurface water oceans among the three outer Galilean satellites and evidence for an internal magma ocean in the innermost moon, Io. Tidal forces from Jupiter periodically deform these bodies, causing heating and deformation that, if measured, can probe their interior structures.
Hamish C. F. C. Hay, Antony Trinh, Isamu Matsuyama   +2 more
openaire   +2 more sources

Burden and Risk Factors for Sharp Injuries among Healthcare Workers in a Ugandan Tertiary Hospital: a Cross-Sectional Study

Infermieristica Journal
Introduction. Uganda’s efforts for sharps handling, and their waste management are restrained due to shortage of equipment and supplies resorting to alternatives that may not meet standards. The aim of this study was to provide a current detailed account
Pauline Irumba, Enos Mirembe Masereka , Nathan Kakongi, Herbert Mugerwa , Emmanuel Kimera, Charles Rugumayo, Robert Kamukama, Apuulison David Friday, Brenda Nabawanuka   +8 more
doaj   +1 more source

Building Open Educational Resources from the Ground Up: South Africa's Free High School Science Texts

Journal of Interactive Media in Education, 2008
The relatively new field of open educational resources (OER) is just now receiving more widespread attention and study. As such, there have been few opportunities thus far to share knowledge across program, organizational and national boundaries.
Lisa Petrides, Cynthia Jimes
doaj   +1 more source

The Origin of the Moon Within a Terrestrial Synestia [PDF]

, 2018
The giant impact hypothesis remains the leading theory for lunar origin. However, current models struggle to explain the Moon's composition and isotopic similarity with Earth. Here we present a new lunar origin model.
S. Lock, S. Stewart, M. Petaev, Z. Leinhardt, M. Mace, S. Jacobsen, M. Ćuk   +6 more
semanticscholar   +1 more source

Evidence for Transient Atmospheres during Eruptive Outgassing on the Moon [PDF]

The Planetary Science Journal, 2020
Events following the giant impact formation of the Moon are thought to have led to volatile depletion and concurrent mass-dependent fractionation of the isotopes of moderately volatile elements (MVE).
Elishevah van Kooten, F. Moynier, J. Day
semanticscholar   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

Advanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth, Verena Streibel, Oliver Bienek, Sergej Levashov, Johannes Dittloff, Kristof Möller, Johanna Eichhorn, Matthias M. May, Ian D. Sharp   +8 more
wiley   +1 more source

Analysis of human disease burden, determinants of treatment costs and affordability perceptions in the Rwenzori region, Uganda using DALYs, OLS and Bayesian regression

Cost Effectiveness and Resource Allocation
Sub-Saharan Africa faces a substantial burden from both communicable and non-communicable diseases, yet gaps in health data tracking hinder understanding of health impacts and treatment affordability.
Edwin Akugizibwe, Issa Ndungo, Kassimu Mpungu, Solomon Mulinzi, James Karahukayo   +4 more
doaj   +1 more source

Analyzing trends and suggested instructional strategies for Geometry education: Insights from Uganda Certificate of Education-Mathematics Examinations, 2016-2022

African Journal of Teacher Education
Geometry education plays a pivotal role in fostering analytical, spatial, and problem-solving skills among students. Nonetheless, there is still a problem with how well geometry training in Ugandan schools accomplishes these objectives and this is ...
Issa Ndungo, Edwin Akugizibwe, Sudi Balimuttajjo   +2 more
doaj   +1 more source