Results 121 to 130 of about 12,976 (302)

Unravelling Evolutionary Dynamics of Female Sexual Cannibalism and Male Reproductive Strategies in Spiders

open access: yesIntegrative Zoology, EarlyView.
Sexual cannibalism (SC), where one mating partner consumes the other in the context of mating, is especially prevalent among spiders. However, the evolution of SC in spiders is still not fully understood. We review key hypotheses for SC and explore how female‐initiated SC has driven the evolution of various male counter‐adaptations to mitigate its ...
Simona Kralj‐Fišer   +3 more
wiley   +1 more source

Navigating Evidence Standards: Stakeholder Perspectives on External Controls and Randomization in Cancer Trials

open access: yesAsia-Pacific Journal of Clinical Oncology, EarlyView.
While historically the ‘gold standard,’ the role of large‐scale RCTs is being increasingly challenged in the contemporary oncology research era. External controls represent an alternate method for generating evidence, though the perspectives of key stakeholders regarding their role in oncology are not well known.
Sarah E. Heynemann   +5 more
wiley   +1 more source

Migrating to stay or commuting to work? How fairness perceptions and exposure shape attitudes toward labor migration

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract Existing literature posits that attitudes toward immigration are shaped by the impact of migrants on native workers' wages and employment, as well as by various other material, cultural, and social concerns. However, empirically disentangling these influences can be challenging.
Lena Maria Schaffer, Gabriele Spilker
wiley   +1 more source

Morse Theory for Continuous Functionals

open access: yesJournal of Mathematical Analysis and Applications, 1995
In an earlier paper, the author, \textit{M. Degiovanni} and \textit{M. Marzocchi} [Topol. Methods Nonlinear Anal. 1, No. 1, 151-171 (1993; Zbl 0789.58021)] developed some Lyusternik-Schnirelmann theory for (lower semi-) continuous functions \(X \to \mathbb{R} \cup \{\infty\}\) where \(X\) is a complete metric space.
openaire   +2 more sources

Morse theory of Bestvina-Brady type for posets and matchings

open access: yes, 2022
We introduce a Morse theory for posets of Bestvina-Brady type combining matchings and height functions. This theory generalizes Forman's discrete Morse theory for regular CW-complexes and extends previous results on Morse theory for $h$-regular posets to
Minian, Elias Gabriel
core  

Direct and indirect costs associated with declining distance visual acuity: A nationwide longitudinal cost‐of‐illness study with 11‐year follow‐up

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To examine the direct and indirect costs associated with declining distance visual acuity (VA). Methods A longitudinal approach was applied to a large, nationally representative sample with extensive data, including VA measured at two time points.
Joonas Taipale   +5 more
wiley   +1 more source

Multiple solutions to fractional equations without the Ambrosetti-Rabinowitz condition

open access: yesElectronic Journal of Differential Equations, 2017
In this article we study a class of fractional Laplace equations which do not satisfy the Ambrosetti-Rabinowitz condition (AR-condition). We establish the existence of three nontrivial solutions and of multiple sign changing solutions by using Morse ...
Ruichang Pei, Jihui Zhang, Caochuan Ma
doaj  

PL Morse theory

open access: yes, 2008
Morse theory is an extremely versatile tool, useful in a variety of situations and parts of topology and geometry. In these introductory lectures we will cover the foundations and discuss some typical applications.
Bestvina, Mladen, Mladen Bestvina
core  

Soil wetting and drying processes influence stone artefact distribution in clay‐rich soils: A case study from Middle Gidley Island in Murujuga, northwest Western Australia

open access: yesArchaeometry, EarlyView.
Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather   +11 more
wiley   +1 more source

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