Results 71 to 80 of about 77,020 (261)

PAMNET: A Listserv Forum for Physics, Astronomy and Mathematics Librarians

open access: yesIssues in Science and Technology Librarianship, 1993
PAMnet (SLA-PAM@UKCC.UKY.EDU) is a Listserv forum that was originally established for the members of the Physics, Astronomy, and Mathematics Division of the Special Libraries Association in 1988.
Joanne Goode
doaj   +1 more source

Electrostatic Self‐Assembly Induced Nest‐Like MXene Networks on Fabric for Ultra‐Broadband Flexible Absorption

open access: yesAdvanced Science, EarlyView.
In this study, an electrostatically self‐assembled WPU‐MXene@FC flexible fabric constructs a “nest‐like” structure on fibers, building construct MXene multiple loss paths, achieving ultra‐wideband absorption of 25.3–1200 GHz in a thickness of 1.8 mm, while also exhibiting superhydrophobicity, acid and alkali resistance, and bending resistance ...
Min Luo   +7 more
wiley   +1 more source

Foundation-phase children’s causal reasoning in astronomy, biology, chemistry and physics

open access: yesSouth African Journal of Childhood Education, 2016
This study aimed at finding out how young children express their thinking about some of the themes in the early-grades school science curriculum. Foundation-phase children at a primary school in Soweto, Johannesburg, were interviewed after they had ...
Francois Naude
doaj   +1 more source

Astronomy, Physics, and Chemistry of [PDF]

open access: yesHighlights of Astronomy, 2002
AbstractThis is a report of a Discussion Meeting titled “Astronomy, Physics, and Chemistry of ” which was held on February 9 and 10, 2000 at the Royal Society in London.
openaire   +1 more source

Lunar‐Based Photothermal CO2 Reduction Strategy: Self‐Evolving Transient Active Interface and Band Engineering

open access: yesAdvanced Science, EarlyView.
A self‐evolving Pd/Ov‐FeTiO3 photothermal catalyst, inspired by lunar soil, enables efficient extraterrestrial CO2 conversion. The formation of transient active interfaces and oxygen vacancies extends light absorption to the infrared range and optimizes electron transfer.
Yahang Wang   +11 more
wiley   +1 more source

Helical Electron Beam Micro‐Bunching by High‐Order Modes in a Micro‐Plasma Waveguide

open access: yesAdvanced Science, EarlyView.
ABSTRACT Electron acceleration by a high‐power Laguerre‐Gaussian pulse in a micro‐plasma waveguide is investigated. When the incident laser travels in the waveguide, electrons on the wall are extracted into the vacuum core and accelerated by the longitudinal field of the waveguide mode.
Xingju Guo, Longqing Yi
wiley   +1 more source

ІСТОРІЯ НАУКИ У ПЕРШІЙ ПОЛОВИНІ ХХ ст. [PDF]

open access: yesStorìnki Istorìï, 2011
The article deals with the important achievements of science (physics, chemistry, mathematics, geology and astronomy) in the first half of 20th ct. The process of the scientific opening is traced in the chronologic order in the different countries of the
Н. І. Паламарчук
doaj  

Imaging Electric Polarization Switching in Multilayer Graphene

open access: yesAdvanced Science, EarlyView.
Domain wall sliding‐induced electric polarization switching is directly observed for the first time in multilayer graphene, enabled by a novel optical readout method. The polarization switching is realized upon application of global and local electric fields, and mechanical forces between neighboring polar domains of opposite out‐of‐plane polarizations
Zhou Zhou   +10 more
wiley   +1 more source

In Situ Pseudo‐Halide Diffusion Enables Buried Interface Regulation and Crystallinity Enhancement in Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
Thermally activated LiHCOO induces in situ pseudo‐halide diffusion, promoting buried interface strain release and perovskite crystallization. The monoclinic LiHCOO phase forms an open framework structure that enhances HCOO− diffusion and drives interfacial restructuring.
Chao Gao   +4 more
wiley   +1 more source

Impact of Laboratory Exercises on Undergraduate Learning Outcomes in Online STEM General Education Courses Among Working Adult and Returning Students

open access: yesOnline Learning
Fully online courses and degree programs are popular with students. These courses should provide the rigor and value of traditional learning in a face-to-face classroom to ensure mastery of concepts and learning objectives.
Kristen A. Miller   +2 more
doaj   +1 more source

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