Results 141 to 150 of about 67,018 (307)

Early evolutionary history of the seed

open access: yesBiological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

Modeling Sexual Differences of Body Size Variation in Ground Beetles in Geographical Gradients: A Case Study of Pterostichus melanarius (Illiger, 1798) (Coleoptera, Carabidae). [PDF]

open access: yesLife (Basel), 2022
Luzyanin S   +11 more
europepmc   +1 more source

Loss, persistence and reversal of phenotypic traits

open access: yesBiological Reviews, EarlyView.
ABSTRACT The irreversibility of complex trait loss has long been a tenet of evolutionary biology. However, this idea is increasingly at odds with the numerous documented exceptions across the Tree of Life. We synthesise this growing body of evidence across a diverse array of taxa and traits, exploring the evolutionary conditions that enable ...
Giobbe Forni   +4 more
wiley   +1 more source

Biodiversity of the ground beetles (Coleoptera: Carabidae) in orchard ecosystems of Azadshahr region, Golestan province, Iran [PDF]

open access: yesنامه انجمن حشره‌شناسی ایران, 2012
The coleopteran family Carabidae is one of the most abundant and diverse generalist predators in agroecosystems, playing an important role in maintaining pest populations below economic threshold.
M. Rezaei Nodeh   +3 more
doaj  

ESG Performance, Debt Financing, and R&D Output: Evidence From the Healthcare Sector

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Amid growing calls for sustainability in the healthcare sector, this study examines how and under what conditions environmental, social, and governance (ESG) performance influences research and development (R&D) output. Although existing studies suggest that ESG performance enhances R&D output, the financial mechanisms that enable or constrain
Sarmad Ali   +2 more
wiley   +1 more source

Excessive Ostial Stent Protrusion: Evaluation of Management Strategies and Clinical Outcomes of the Side Flap Technique

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Backgrounds Accurate stent positioning in aorto‐ostial lesions remains challenging due to complex three‐dimensional anatomy, lack of optimal fluoroscopic projections, and high rates of geographic miss. Stent overhang impairs guide catheter re‐engagement and complicates future revascularization.
Gregor Leibundgut   +7 more
wiley   +1 more source

Double Sided Traction Force Microscopy: A Method to Confine Cells for Physiologically Relevant Force Measurements

open access: yesCytoskeleton, EarlyView.
ABSTRACT In this paper we describe a technique to make a confined environment of variable stiffness that is suitable for high‐resolution live‐cell imaging. This versatile and adaptable technique enables cell confinement between soft elastic surfaces made from polyacrylamide gels.
Alexia Caillier, Patrick W. Oakes
wiley   +1 more source

Invariant Measure and Universality of the 2D Yang–Mills Langevin Dynamic

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We prove that the Yang–Mills (YM) measure for the trivial principal bundle over the two‐dimensional torus, with any connected, compact structure group, is invariant for the associated renormalised Langevin dynamic. Our argument relies on a combination of regularity structures, lattice gauge‐fixing and Bourgain's method for invariant measures ...
Ilya Chevyrev, Hao Shen
wiley   +1 more source

Palaeoenvironment of a mesolithic peat bed from Austin Friars, Leicester [PDF]

open access: yes, 1984
A mesolithic peat bed, dated to 9920±100 bp (HAR-4260) (bp = radiocarbon years before the present calculated from A.D. 19S0 within + or - of 100 years in this case. Ed.) was recovered from Austin Friars, Leicester.
Hunt, SA, Shackley, M
core  

Home - About - Disclaimer - Privacy