Results 151 to 160 of about 499,879 (331)

Threshold Decline in Mesoamerican Coral Growth and Resiliency [PDF]

open access: yes, 2008
Caribbean coral reefs have been massively altered in recent decades due to human impacts, resulting in a dramatic reduction of live coral cover but quantitative data before the 1970s have not been available to assess how these changes came about1,2,3. We
Jessica Carilli, Richard Norris
core   +1 more source

Insights into the Mechanism of a Vanadium Bromoperoxidase from the Marine Macro‐Algae Corallina pilulifera for Biocatalytic Halogenation

open access: yesChemCatChem, EarlyView.
A study of crystallographic complexes obtained from vanadium haloperoxidase enzymes can determine key amino acids, leucine, and phenylalanine, that change their structural orientation to allow either chloride or bromide to bind to the enzymes active site, thereby determining halide specificity.
Daniel E. Mitchell   +3 more
wiley   +1 more source

Cathode Materials for Proton Exchange Membrane Fuel Cells: From Metal and Metal Composite Catalysts to Carbon‐Supported Hybrids in Oxygen Reduction Reaction

open access: yesChemElectroChem, EarlyView.
This review highlights recent progress in the development of electrocatalysts for the oxygen reduction reaction in proton exchange membrane fuel cells (PEMFCs). Particular focus is given to structure–activity relationships, active site identification, and the role of noble and non‐noble metals, with insights into synthetic strategies and performance in
Claudia Garcés‐Barría   +5 more
wiley   +1 more source

Women at Work with the Help of Family: Leveraging Family Resources to Tackle Work‐Family Conflict

open access: yesCanadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l'Administration, EarlyView.
ABSTRACT Despite significant advancements in women's professional pursuits, work–family conflict (WFC) remains a persistent challenge that affects their careers. As such, this qualitative study delves into the lived experiences of 17 working women, across diverse sectors in South Africa, to understand how they handle WFC.
Brownhilder Ngek Neneh
wiley   +1 more source

Predicting rare events using training data from stratified sampling designs, with application to human‐caused wildfire prediction

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Response‐based sampling is often used in modelling rare events from large, imbalanced data for efficiency. When modelling the event with logistic regression, the sampling design may be adjusted for using sampling weights or an offset. We propose a stratified sampling design for modelling rare events with large data which improves on previous ...
Johanna de Haan‐Ward   +2 more
wiley   +1 more source

Cold-water corals and hydrochemistry - is there a unifying link? [PDF]

open access: yes, 2010
Physical and chemical parameters were measured in five different regions of the Northeast Atlantic with known occurrences of cold-water coral reefs and mounds and in the Mediterranean, where these corals form living carpets over existing morphologies. In
Dullo, Wolf-Christian   +3 more
core  

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