Results 51 to 60 of about 371,257 (337)

Floral shape and color impact heat accumulation and thermal stability of the floral microenvironment in a subalpine meadow

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The floral thermal microenvironment impacts plant reproduction through its effects on gametophyte performance and plant–pollinator interactions. Color and shape are axes of floral variation that may mediate floral temperature because they affect the absorption and reflection of solar radiation, but their interactive effects are unclear.
Jennifer S. Apland   +2 more
wiley   +1 more source

Early Breeding Conditions Followed by Reduced Breeding Success Despite Timely Arrival in an Alpine Migratory Songbird

open access: yesFrontiers in Ecology and Evolution, 2021
Timing reproduction to coincide with optimal environmental conditions is key for many organisms living in seasonal habitats. Advance in the onset of spring is a particular challenge to migratory birds that must time their arrival without knowing the ...
Martha Maria Sander   +7 more
doaj   +1 more source

Characterizing the Healthcare Utilization and Costs of Hereditary Hemorrhagic Telangiectasia

open access: yesAmerican Journal of Hematology, EarlyView.
ABSTRACT Hereditary hemorrhagic telangiectasia (HHT) is the second‐most common inherited bleeding disorder worldwide, afflicting one in 4000–5000 people, and is the most morbid inherited bleeding disorder of women. HHT causes recurrent severe epistaxis, chronic gastrointestinal bleeding, heavy menstrual bleeding, and arteriovenous malformations in the ...
Hanny Al‐Samkari   +5 more
wiley   +1 more source

Fluvial gravel bar mapping with spectral signal mixture analysis

open access: yesEuropean Journal of Remote Sensing, 2021
The paper presents a method for mapping fluvial gravel bars based on Sentinel-2 and Landsat imagery. The proposed method therefore uses spectral signal mixture analysis (SSMA) because its results allow the development of land cover fraction maps for ...
Liza Stančič   +2 more
doaj   +1 more source

Alpine Soils

open access: yes, 2005
Mention d'édition : 2nd edition ; International ...
Poulenard, Jérôme, Podwojewski, Pascal
openaire   +4 more sources

An Alpine Malaise trap [PDF]

open access: yesAlpine Entomology, 2018
The Southernmost region of Australia, the island of Tasmania, is also the most mountainous, with large areas of rugged alpine environments. This entomological frontier offers a distinct suite of insects for study including many endemic taxa. However, harsh weather, remote locations and rough terrain represent an environment too extreme for many ...
Shasta Claire Henry   +2 more
openaire   +5 more sources

Standardization of Terminology, Definitions, and Outcome Criteria for Bleeding in Hereditary Hemorrhagic Telangiectasia: International Consensus Report

open access: yesAmerican Journal of Hematology, EarlyView.
ABSTRACT Hereditary hemorrhagic telangiectasia (HHT, Osler‐Weber‐Rendu disease) is the second most common inherited bleeding disorder worldwide, affecting approximately 1 in 5000 people. Development of disease‐modifying and efficacious hemostatic agents to treat HHT has finally begun after decades without such medical therapies.
Hanny Al‐Samkari   +22 more
wiley   +1 more source

Can alpine plant species “bank” on conservation?: Using artificial aging to understand seed longevity

open access: yesApplications in Plant Sciences, 2022
Premise To conserve native plants, many institutions are turning toward ex‐situ conservation methods, such as storage in seed banks; however, not all seeds are able to survive in seed bank conditions, or may not in the long term.
Alexandra E. Seglias
doaj   +1 more source

Asymmetric Synthesis of Propargylic and Allenic Silanes, Germanes, and Stannanes

open access: yesChemistry – An Asian Journal, EarlyView.
Organotetrel compounds are important reagents with broad applications in chemical industries and natural product synthesis. This review provides a summary of strategies for the synthesis of propargylic and allenic organotetrels in their enantioenriched forms.
Hai Chang, Ruihan Wang, Yi‐Ming Wang
wiley   +1 more source

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