Results 191 to 200 of about 814,404 (292)

Evaluation of methods for the analysis of oxygen and carbon dioxide in water, sediment, litter, and soil

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Choosing an appropriate analyzer to measure concentrations of oxygen (O2) and carbon dioxide (CO2) during biogeochemical cycling studies can be difficult, considering the range of options available. While several studies examine the abilities of specific analyzers, comparison of multiple analyzers and environmental sample types is lacking.
Elizabeth Jakobsson   +2 more
wiley   +1 more source

Mountain Pass Algorithms and Applications.

open access: yes, 2011
Saddle-points and mountain-pass points of energy surfaces have many applications in areas that range from plate buckling and interface propagation, to theoretical chemistry and image processing. This thesis starts by giving a motivation for the subject.
openaire   +1 more source

Analysis of Carbohydrates and Glycoconjugates by Matrix‐Assisted Laser Desorption/Ionization Mass Spectrometry: An Update for 2023–2024

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT The use of MALDI mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this comprehensive review is the twelfth update of the original article published in 1999 and brings coverage of the literature to the end of 2024.
David J. Harvey
wiley   +1 more source

Macro‐ and micromorphological insights into Iranian Onobrychis subgenus Onobrychis Miller (Fabaceae): exploring fruit traits for taxonomic clarity

open access: yesNordic Journal of Botany, EarlyView.
This study provides a comprehensive examination of fruit morphology and micromorphology characteristics of 28 populations of Onobrychis subgenus Onobrychis taxa from Iran, using both light and scanning electron microscopy. For each trait, 25 replicates were analyzed, encompassing a wide range of qualitative and quantitative traits.
Seyed Mehdi Talebi   +2 more
wiley   +1 more source

Life history stability under climate change: a wildflower at the northern edge of its range

open access: yesNordic Journal of Botany, EarlyView.
Stabilities of life history traits for a widespread native perennial wildflower, Rudbeckia laciniata L., are described for five populations near the northern edge of its range in North America. Theory proposes that such populations experience variable levels of stress as suitable abiotic conditions shift north or south from year to year, which ...
Robert J. Lamb, Patricia A. MacKay
wiley   +1 more source

Treasures of the Serra da Jiboia (Bahia, Brazil): a new species of Racinaea and an overview of the local Bromeliaceae flora

open access: yesNordic Journal of Botany, EarlyView.
Serra da Jiboia, located in the south‐central region of Bahia, represents an important ecotone between the Atlantic Forest and the Caatinga and harbors high floristic diversity and numerous endemic species. The Bromeliaceae family, well represented in the region, stands out for its ecological importance and adaptability to various microenvironments ...
Everton Hilo de Souza   +5 more
wiley   +1 more source

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