Results 71 to 80 of about 1,561,518 (346)

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva   +9 more
wiley   +1 more source

Sumario

open access: yesRevista Hábitat Sustentable, 2019
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Hábitat Sustentable
doaj  

Fossil-dominated secondary organic aerosol (SOA) formation in coastal China: size-divergent pathways of aqueous Fenton reactions versus gas-phase volatile organic compound (VOC) autoxidation [PDF]

open access: yesAtmospheric Chemistry and Physics
Elucidating size-dependent formation mechanisms of secondary organic aerosols (SOAs) remains a critical research gap in atmospheric chemistry. Here, we analyzed water-soluble compounds in size-segregated aerosol samples (0.056–18 µm) collected at a ...
J.-Y. Wang   +6 more
doaj   +1 more source

Association between modern contraceptive use and child mortality in India: A calendar data analysis of the National Family Health Survey (2015-16)

open access: yesSSM: Population Health, 2020
:: Background: Influence of contraceptive use on increased gap between successive births and attributed reduced risk of child deaths is well documented in developing countries.
Ankita Shukla   +6 more
doaj   +1 more source

Defining the scale of habitat availability for models of habitat selection [PDF]

open access: yesEcology, 2016
AbstractStatistical models of habitat preference and species distribution (e.g., Resource Selection Functions and Maximum Entropy approaches) perform a quantitative comparison of the use of space with the availability of all habitats in an animal's environment.
Paton, Robert Stephen   +1 more
openaire   +3 more sources

Precursor Mineral Phases of Forming Mollusk Shell Nacre: A Study of Hydrated Samples

open access: yesAdvanced Functional Materials, EarlyView.
Mineral, organic phase, and water are the essential components in mollusk shell nacre formation. Their interplay is not well understood, because the hydrated material is difficult to observe at high resolution, under close to native conditions. Forming nacre is studied using environmental and cryo‐electron microscopy and hydrated ACC phases, together ...
Anna Kozell   +4 more
wiley   +1 more source

Modelling fish habitat preference with a genetic algorithm-optimized Takagi-Sugeno model based on pairwise comparisons [PDF]

open access: yes, 2011
Species-environment relationships are used for evaluating the current status of target species and the potential impact of natural or anthropogenic changes of their habitat. Recent researches reported that the results are strongly affected by the quality
A. Guisan   +14 more
core   +2 more sources

A Biologically‐Architected Wear and Damage‐Resistant Nanoparticle Coating From the Radular Teeth of Cryptochiton stelleri

open access: yesAdvanced Functional Materials, EarlyView.
The ultrahard teeth of mollusks that feed on rocky substrates contain a wear‐resistant coating on their surfaces consisting of densely packed mesocrystalline magnetic nanoparticles within an organic matrix. These coatings display significant hardness and toughness through their highly controlled mesocrystalline architectures.
Taifeng Wang   +7 more
wiley   +1 more source

Planning for the integration of refugee and host communities in Turkana County, Kenya

open access: yesForced Migration Review, 2017
The Kalobeyei New Settlement focuses on the creation of a spatial plan to guide settlement in both the short and the long term to the benefit of both host community and refugees.
Yuka Terada, David Evans, Dennis Mwaniki
doaj  

Movement and habitat use of two aquatic turtles (\u3cem\u3eGraptemys geographic\u3c/em\u3e and \u3cem\u3eTrachemys scripta\u3c/em\u3e) in an urban landscape [PDF]

open access: yes, 2008
Our study focuses on the spatial ecology and seasonal habitat use of two aquatic turtles in order to understand the manner in which upland habitat use by humans shapes the aquatic activity, movement, and habitat selection of these species in an urban ...
Conner, C A   +4 more
core   +1 more source

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