Results 201 to 210 of about 684,945 (352)

A Model of a Spiral Galaxy [PDF]

open access: bronze, 1951
G. C. Mevittie, C. Payne-Gaposchkin
openalex   +1 more source

Homochiral Self‐Sorting During Macrocycle Formation and their Chiroptical Properties

open access: yesChemistryOpen, EarlyView.
Imine condensation of C2‐symmetric chiral aldehydes with aliphatic amines results in 2 : 2 macrocycles lacking self‐sorting, whereas aromatic amines yield macrocycles with complete homochiral self‐sorting. These macrocycles exhibit unique chiroptical properties attributed to rigidification compared to the starting aldehydes.
Diptiprava Sahoo, Soumen De
wiley   +1 more source

A Non‐Metaproteomics Researchers’ View on Metaproteomics in Microbiome Research

open access: yesPROTEOMICS, EarlyView.
ABSTRACT Metaproteomics, an emerging field among the omic techniques, holds great promise for unraveling the function of microbiomes in host health and our environment. Metaproteomics can also be a valuable addition to multiomics studies of the microbiome, complementing genome‐resolved metagenomics, metatranscriptomics, and metabolomics.
Velma T. E. Aho   +5 more
wiley   +1 more source

Facilitating learning in immersive virtual reality: Segmentation, summarizing, both or none?

open access: yesJournal of Computer Assisted Learning, Volume 39, Issue 1, Page 218-230, February 2023., 2023
Abstract Introduction This study investigates the effectiveness of the segmentation principle from the cognitive theory of multimedia learning as well as the effectiveness of the generative learning strategy of summarization in immersive virtual reality (IVR) within a sample of preadolescents.
Sara Klingenberg   +3 more
wiley   +1 more source

Characteristics of pulsed electric field cardiac ablation porcine treatment zones with a focal catheter

open access: yesJournal of Cardiovascular Electrophysiology, Volume 34, Issue 1, Page 99-107, January 2023., 2023
Abstract Objectives Pulsed electric field (PEF) therapies employ punctuated energy delivery to kill cells in a volume of tissue through mechanisms that are not dependent on thermal processes. A key component to successful cardiac ablation procedures is ensuring the generation of transmural, contiguous ablation zones, which requires in‐depth knowledge ...
Atul Verma   +6 more
wiley   +1 more source

Learning by helping: Evidence from Chinese brokerages' community CSR

open access: yesStrategic Management Journal, EarlyView.
Abstract Research Summary We propose that firms engaging in community corporate social responsibility (CSR) can acquire valuable local knowledge that improves their core operations. We test our proposition leveraging a unique context‐the Securities Association of China's pairing assistance scheme under the country's targeted poverty alleviation program.
Jingyuan Li, Yong H. Kim, Jose Uribe
wiley   +1 more source

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