Results 91 to 100 of about 1,727,832 (339)

Why Is the Mechanism Underlying the Chiral‐Induced Selectivity Effect Still Challenging?

open access: yesAdvanced Materials, EarlyView.
The chiral‐induced spin selectivity (CISS) effect is observed in many experimental configurations and for different materials. However, there are theoretical challenges in attempting to explain those results. A qualitative framework for explaining all the results is presented.
Ron Naaman, Yossi Paltiel
wiley   +1 more source

Improved Mixed Estimator Using Two Auxiliary Variables For Full Extreme Maximum And Minimum Values In Single Phase Sampling [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية
The use of multiple auxiliary variables has been established to improve precision in the estimators of ratio, regression and product respectively. However, the presence of extreme values in the distribution could annul such efficiency Olatayo et al ...
Timothy O. Olatayo   +2 more
doaj   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

Caracterização dos profissionais de saúde em Portugal - parte II - como estamos, onde estamos e como nos sentimos

open access: yesRevista Portuguesa de Medicina Geral e Familiar, 2003
Dos 23.934 médicos referidos, 66,9% estão vinculados aos hospitais, 31,2% aos centros de saúde e os restantes 1,9% a outros serviços.
José Martins   +6 more
doaj   +1 more source

Upscaling Pulsed Laser Fragmentation in Liquids by Advanced Free‐Flow Setups

open access: yesAdvanced Materials Technologies, EarlyView.
Advanced flow setups providing thin colloid films are introduced to upscale pulsed laser fragmentation in liquids for sustainable nanoparticle synthesis. Their potential is demonstrated by yielding remarkably small ZnO nanoparticles of <7 nm. Numerical simulations complement the study, revealing that the superior performance can be attributed to ...
Jan Lino Kricke   +5 more
wiley   +1 more source

Caracterização dos profissionais de saúde em Portugal - parte I - Quantos somos e quem somos

open access: yesRevista Portuguesa de Medicina Geral e Familiar, 2003
No período de 1985-1999, o número de efectivos do Serviço Nacional de Saúde, na sua totalidade, cresceu 36,6%. Por grupos profissionais, o pessoal médico cresceu 32%, o pessoal de enfermagem 60,9% e os técnicos de diagnóstico e de terapêutica 74,8%.
José Martins   +6 more
doaj   +1 more source

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

open access: yesAdvanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds   +2 more
wiley   +1 more source

Energetic Ionospheric Upwelling: A Case Study of Velocity Distribution and Ion Flux Observed by the EISCAT Svalbard Radar

open access: yesInternational Journal of Energetica
When outflow of heavy ions such as O+ occurs, the atmospheres of planets are gradually loss. The ions being depleted in the ionosphere, under favourable conditions, upwell into the underlying magnetosphere and forms a substantial part of plasma in the ...
Timothy W David   +4 more
doaj  

Noncanonical functions of microRNA pathway enzymes – Drosha, DGCR8, Dicer and Ago proteins

open access: yesFEBS Letters, 2018
MicroRNAs (miRNAs) are small regulatory noncoding RNAs that are generated in the canonical RNA interference (RNAi) pathway. Drosha, DiGeorge syndrome critical region 8 (DGCR8) and Dicer are key players in miRNA biogenesis.
S. Pong, M. Gullerová
semanticscholar   +1 more source

Two Routes to Land: Genomic Underpinnings of Parallel Aerial Egg Deposition in Aquatic Old‐World Pila and New‐World Pomacea (Ampullariidae)

open access: yesAdvanced Science, EarlyView.
Comparative genomics of Gondwana‐diverged Pila and Pomacea reveals parallel evolution of aerial oviposition. Convergent chromosomal rearrangements reshape regulatory landscapes within topologically associating domains. Lineage‐specific gene family expansions and viral‐derived perivitelline proteins (PV1) underpin desiccation resistance.
Yufei Zhou   +10 more
wiley   +1 more source

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