Results 121 to 130 of about 4,910 (302)

Nutation determination by VLBI and GPS techniques

open access: yes, 2013
Le but de cette thèse est d utiliser indépendamment les observations obtenues par les techniques VLBI et GPS, pour déterminer les nutations de l axe de la Terre à toutes les fréquences avec la meilleure précision possible.
YAO, Kunliang, CAPITAINE, Nicole
core  

A repertoire of middle leading practices: A large‐scale investigation of middle leadership in schools

open access: yesBritish Educational Research Journal, EarlyView.
Abstract This article presents findings from an Australian study investigating the practices of middle leaders responsible for facilitating school development. Despite middle leaders being increasingly recognised as essential in the development of teaching and learning in schools, middle leadership remains under‐researched and comparatively overlooked ...
Peter Grootenboer   +3 more
wiley   +1 more source

The Nutation Damping Control of a Spacecraft [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1994
In this paper, the Variable Structure System(VSS) theory with new continuous switching dynamic equation is used to design an automatic controller for the active nutation damping in momentum bias stabilized spacecraft.
Chang-Hoon Lee
doaj  

The Earth's nutation: VLBI versus IAU 2000A

open access: yes, 2013
International audienceThe nutation measured by VLBI is compared with the IAU 2000A model. The differences are modeled empirically by adjusting the free core nutation and a number of tidal terms.
Capitaine, Nicole   +3 more
core  

Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade

open access: yesBiological Reviews, EarlyView.
ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan   +2 more
wiley   +1 more source

Orchard netting impacts on biodiversity leading to cascading effects at the ecosystem level

open access: yesBiological Reviews, EarlyView.
ABSTRACT Agriculture must ensure food production without further compromising the ecosystem functions upon which it depends. Agricultural practices should therefore avoid harming farmland biodiversity, especially of taxa that supply the key ecosystem services (e.g.
Corrado Alessandrini   +13 more
wiley   +1 more source

Comparison of VLBI nutation time series

open access: yes, 2015
International audienceWe carried out comparisons between nutation time series made available by different analysis centers of the IVS. We characterizes differences between series in terms of amplitudeand phase of prominent free and forced nutation
Gattano, Cesar   +2 more
core  

What drives animal responses to high severity fire? The role of functional traits

open access: yesBiological Reviews, EarlyView.
ABSTRACT Fire regimes are changing worldwide, with increases in the frequency, extent, and severity of fires posing growing risks to biodiversity. Fire severity – the degree of habitat alteration following fire – strongly influences both immediate survival and long‐term recovery of fauna.
Grace A. Vielleux   +3 more
wiley   +1 more source

Historical precis of the diurnal nutation discovery [PDF]

open access: yes, 1897
The author summarizes his constants determination of the diurnal nutation and the obstacles which he had to overcome to reach his goal.L’auteur résume sa détermination des constantes de la nutation diurne et les obstacles qu’il a dû franchir pour ...
Folie, François
core  

Cultivating Circularity: Harnessing Industry 4.0 and Stakeholder Engagement for a Sustainable Agrifood Future in Brazil

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study analyzed Industry 4.0 (I4.0) technology applications in agribusiness and the role of strategic stakeholders, engagement methods, and other critical aspects data sharing, confidentiality, integrity, decision‐making, and sector‐specific requirements in promoting circularity.
Simone Sehnem   +3 more
wiley   +1 more source

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