Results 101 to 110 of about 453,562 (303)
Biological Reviews, EarlyView.ABSTRACT Tool use research has long made the distinction between tool using that is considered learned and flexible, and that which appears to be instinctive and stereotyped. However, animals with an inherited tool use specialisation can exhibit flexibility, while tool use that is spontaneously innovated can be limited in its expression and facilitated
Jennifer A. D. Colbourne +1 more
wiley +1 more source
Light-modulation of bark photosynthesis in birch (Betula pendula Roth.)
Acta Biologica Slovenica, 2003 Bark photosynthesis has been shown to be an effective mechanism for stem-internal refixation of respiratory CO . In young birch trees (Betula pendula Roth.) this function is clearly modulated by the prevailing light intensity regime.
Christiane Wittman, Hardy Pfanz
doaj +1 more source
Early evolutionary history of the seed
Biological 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
Detection and Characterization of Stress Symptoms in Forest Vegetation [PDF]
Techniques used at the Pacific Southwest Forest and Range Experiment Station to detect advanced and previsual symptoms of vegetative stress are discussed.
Heller, R. C.
core +1 more source
A meta-narrative review of electronic patient records [PDF]
, 2009 This session comprises four papers that consider how systematic review methods may be developed in order to make the best use of complex evidence in education and health.
Bark, P. +4 more
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Spatial metrics in fire ecology: seeking consistency amidst complexity
Biological Reviews, EarlyView.ABSTRACT Technological advances, including remote sensing, have led to a proliferation of metrics used in ecological studies to examine spatial patterns of fire regimes and their ecological effects. Researchers can use many different metrics to analyse spatial variation in both fire events and resulting fire regimes, including fire size, shape ...
Alexander R. Carey +5 more
wiley +1 more source
Robinia pseudoacacia poisoning in two horses: A case report
Veterinární MedicínaThis case report describes the poisoning of two mares from the same paddock with Robinia pseudoacacia (Black locust) bark. The poisoning manifested itself by the sudden onset of weakness and fever with transient improvement after the administration of ...
T Novotna +6 more
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Artemisinin: From Chinese Herbal Medicine to Modern Chemotherapy [PDF]
, 2019 Malaria is a disease that has blighted humankind since early times. The first antimalarial treatment available to Europeans was the dried bark of the cinchona tree from Peru. The main problem in its use was adulteration by other material.
Butler, Anthony
core +1 more source
A roadmap to key traits of invasive Drosophilidae
Biological Reviews, EarlyView.ABSTRACT Biological invasions have intensified in recent decades, mostly driven by international trade and travel, raising significant concerns, particularly regarding insect pests. Once non‐native species establish, they can disrupt natural ecosystem stability, undermine agroecosystem sustainability and cause substantial economic losses.
Gwenaëlle Deconninck +14 more
wiley +1 more source
BALANOKARPOL AND AMPELOPSIN H, TWO OLIGORESVERATROLS FROM STEM BARK OF Hopea odorata (DIPTEROCARPACEAE) [PDF]
, 2011 Two oligoresveratrol, namely balanokarpol (1) and ampelopsin H (2) had been isolated from the steam bark of Hopea odorata (Dipterocarpaceae). The structure of this compound were elucidated based on physical and spectroscopic data (MS, 1H and 13C NMR 1D ...
Sri , Atun, Ph.D
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