Results 121 to 130 of about 345,766 (300)

Evaluating the influence of soil and water conservation practices and slope gradient on selected soil properties in the abagawudi watershed, northwest Ethiopia

open access: yesCogent Food & Agriculture
Soil erosion continues to pose a significant threat in Ethiopia, despite the implementation of various soil conservation practices. This study explores the impacts of soil and water conservation practices and slope gradient on selected soil properties ...
Yibelu Ayalew   +2 more
doaj   +1 more source

Soil and water conservation technologies: A buffer against production risk in the face of climate change?: Insights from the Nile Basin in Ethiopia [PDF]

open access: yes
"This study investigates the impact of different soil and water conservation technologies on the variance of crop production in Ethiopia to determine the risk implications of the different technologies in different regions and rainfall zones.
Bryan, Elizabeth   +3 more
core  

Generalized Fokker-Planck Equation For Multichannel Disordered Quantum Conductors

open access: yes, 1999
The Dorokhov-Mello-Pereyra-Kumar (DMPK) equation, which describes the distribution of transmission eigenvalues of multichannel disordered conductors, has been enormously successful in describing a variety of detailed transport properties of mesoscopic ...
A. D. Stone   +30 more
core   +1 more source

T. rex cognition was T. rex‐like—A critical outlook on diverging views of the neurocognitive evolution in dinosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen   +7 more
wiley   +1 more source

Effectiveness of exclosures to control soil erosion and local communities perception on soil erosion [PDF]

open access: yes, 2009
The study investigated how effective exclosures are in the fight against soil erosion and how they are perceived as a means to control soil erosion by the local community (farmers and local experts).
Mekuria, Wolde   +5 more
core   +1 more source

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

open access: yesThe Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano   +3 more
wiley   +1 more source

Neuroanatomical diversity in Teleocichla with new volumetric and histological insights into the encephalon of Teleocichla monogramma Kullander 1988

open access: yesThe Anatomical Record, EarlyView.
Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis   +4 more
wiley   +1 more source

Scottish Archaeological Research Framework: Future Thinking on Carved Stones [PDF]

open access: yes, 2016
No abstract ...
Buckham, Susan   +3 more
core  

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

open access: yesThe Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo   +5 more
wiley   +1 more source

Genetic Assessment of a Captive Population of Eurasian Stone-Curlew (Burhinus oedicnemus), Source for the Reinforcement of Wild Populations

open access: yesBiology
Although ex situ conservation programs are increasingly valuable support tools for in situ conservation measures, success depends on these captive individuals to be genetically representative of the recipient population.
Loïc Lesobre   +6 more
doaj   +1 more source

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