Results 151 to 160 of about 39,105 (252)

Drivers of variation in yellow crazy ant (Anoplolepis gracilipes) abundance and impacts on native fauna in an atoll ecosystem

open access: yesConservation Science and Practice, EarlyView.
Yellow crazy ants (Anoplolepis gracilipes; YCA) are widespread invaders of islands across the Pacific and Indian Oceans. We investigated the ecological preferences and impacts of this species on a Polynesian atoll. We show that even at low abundances, this species can have important impacts on the fauna, including seabirds, and require management ...
Miléna Philip   +2 more
wiley   +1 more source

Microstructural evolution of Zn coating on 22MnB5 steel during austenitization and hot stamping processes

open access: yesJournal of Materials Research and Technology
Short-time austenitization of Zn-coated steels plays a critical role in the surface microstructure and corrosion resistance of the final component after hot-deformation.
Lingling Zhang   +7 more
doaj   +1 more source

Исследование процессов компактирования порошковых материалов триботехнического назначения на основе дисперсноупрочненной меди [PDF]

open access: yes, 2015
Проблематика. Створення теоретичних і технологічних засад отримання порошкових матеріалів антифрикційного призначення з використанням порошків дисперснозміцненої міді є актуальною задачею, розв’язання якої потребує установлення залежностей властивостей ...
Biryukovych, L. O.   +8 more
core  

Ambient heat and early childhood development: a cross‐national analysis

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background Increasing evidence suggests that climate change, along with its cascading impacts on ecosystems, societies, and communities, has significant effects on both physical and mental health. However, less is known about how exposure to excessive heat early in life may influence the development of foundational skills that shape lifelong ...
Jorge Cuartas   +3 more
wiley   +1 more source

Entrepreneurial Market Leadership Claims, Cultural Resonance, and Investor Evaluations in Nascent Markets: The Goldilocks Effect

open access: yesJournal of Management Studies, EarlyView.
Abstract Cultural entrepreneurship research emphasizes entrepreneurs’ use of cultural resources to influence audience evaluations through resonance. However, the process by which such cultural resonance is achieved remains underexplored, particularly as an intermediary outcome.
Xiumei Li   +3 more
wiley   +1 more source

Shrubs and trees as natural insect protection for grazing animals in Switzerland and the alpine region: A systematic review of in vitro, in vivo and clinical trials Sträucher und Bäume als natürlicher Insektenschutz für Weidetiere in der Schweiz und im Alpenraum: Eine systematische Literaturübersicht über in vitro‐, in vivo‐ und klinische Studien

open access: yesMedical and Veterinary Entomology, EarlyView.
Biting or irritating insects are a threat to the health and welfare of grazing animals. This systematic review reveals that several shrubs and bushes growing in the alpine area have insecticidal, insect‐repellent and/or attractant properties. The alder Alnus glutinosa, juniper Juniperus communis, spruce Picea abies and walnut Juglans regia are ...
Theresa Schlittenlacher   +3 more
wiley   +1 more source

Impersonal efficiency and the dangers of a fully automated securities exchange [PDF]

open access: yes, 2010
This report identifies impersonal efficiency as a driver of market automation during the past four decades, and speculates about the future problems it might pose.
Beunza, Daniel   +3 more
core  

Hot-Stamping of Boron Steel

open access: yes, 2020
Materials used in car body must fulfill several performance requirements during manufacturing and service life. Reducing car weight also reduces fuel consumption and causes lower gas emissions. One way to make that possible is to use hot-stamped boron steel components because the high strength of steel sheet thickness can be reduced without losing ...
openaire   +1 more source

Dread in the Homeland: Symbolic Politics and Ethnonationalist Struggles for Self‐Determination in Nigeria

open access: yesNations and Nationalism, EarlyView.
ABSTRACT The revival of Biafran separatism in contemporary Nigeria is often explained with three leading theoretical frameworks: relative deprivation, political economy and state repression. Whereas relative deprivation and political economy perspectives posit that the resurgent separatism derives from the perception and empirical reality of ...
Promise Frank Ejiofor
wiley   +1 more source

Low cost tooling material and process for graphite and Kevlar composites [PDF]

open access: yes
An Extruded Sheet Tooling Compound (ESTC) was developed for use in quickly building low cost molds for fabricating composites. The ESTC is a very highly mineral-filled resin system formed into a 6 mm thick sheet. The sheet is laid on the pattern, vacuum (
Childs, William I.
core   +1 more source

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