Results 51 to 60 of about 3,828,490 (206)

The Influence of Mechanical Composition and Mineral Composition of Calcareous Soil on Slope Farmland on Phosphorus Fixation

open access: yesApplied Sciences, 2021
Soil erosion on slope farmland causes the degradation of soil quality and eutrophication of water bodies due to the loss of phosphorus. In order to explore the influence of soil mechanical composition and mineral composition on phosphorus fixation, we ...
Weiyi Han, Ye Li, Hang Yin
doaj   +1 more source

Controlled biomineralization of magnetite (Fe3O4) by Magnetospirillum gryphiswaldense [PDF]

open access: yes, 2008
Results from a study of the chemical composition and micro-structural characteristics of bacterial magnetosomes extracted from the magnetotactic bacterial strain Magnetospirillum gryphiswaldense are presented here.
Bauerlein   +12 more
core   +2 more sources

Committee Size and Smart Growth: An Optimal Solution [PDF]

open access: yes, 2009
Wisconsin is one of many states that have enacted a “Smart Growth Initiative” law that requires inclusion of the public in the creation and development of a Comprehensive Plan.
Kashian, Russell, Kohls, Heather
core   +1 more source

FPT is Characterized by Useful Obstruction Sets [PDF]

open access: yes, 2013
Many graph problems were first shown to be fixed-parameter tractable using the results of Robertson and Seymour on graph minors. We show that the combination of finite, computable, obstruction sets and efficient order tests is not just one way of ...
Fellows, Michael R., Jansen, Bart M. P.
core   +1 more source

Smooth lumpsucker Aptocyclus ventricosus in the northwestern Sea of Japan: distribution and some life history traits

open access: yesArchives of Polish Fisheries, 2018
This paper is focused on horizontal, vertical, and temperature-dependent distributions, size composition of bottom and mid-water trawl catches, and biomass estimations of smooth lumpsucker Aptocyclus ventricosus (Pallas) (Cyclopteridae) within the ...
Solomatov Sergei F., Orlov Alexei M.
doaj   +1 more source

Semiconductor Quantum Dots as Target Analytes: Properties, Surface Chemistry and Detection

open access: yesNanomaterials, 2022
Since the discovery of Quantum Dots (QDs) by Alexey I. Ekimov in 1981, the interest of researchers in that particular type of nanomaterials (NMs) with unique optical and electrical properties has been increasing year by year. Thus, since 2009, the number
Jesús Sanmartín-Matalobos   +6 more
doaj   +1 more source

Proximate composition and serving sizes of selected composite Ghanaian soups

open access: yesAfrican Journal of Food, Agriculture, Nutrition and Development, 2020
Soups are major components of Ghanaian dishes. The composite nature of Ghanaian soups, in general, tend to make the calorie and macronutrient composition highly variable. This study sought to determine the proximate composition of selected Ghanaian soups from defined recipes and to photographically present quantities of the soups, measured with common ...
Appiah, C.A.   +4 more
openaire   +2 more sources

Liquid-Liquid Phase Separation in an Elastic Network

open access: yes, 2017
Living and engineered systems rely on the stable coexistence of two interspersed liquid phases. Yet surface tension drives their complete separation. Here we show that stable droplets of uniform and tuneable size can be produced through arrested phase ...
Dufresne, Eric R.   +7 more
core   +2 more sources

Application of homogeneously precipitated nanosized Fe-doped alumina powders to carbon nanotube growth. [PDF]

open access: yes, 2010
Homogeneous precipitation of hydroxides was investigated as an alternative method to synthesize Fe-doped aluminum oxide (α-Al2−2xFe2xO3) particles over which carbon nanotubes (CNTs) were grown via a catalytic chemical vapor deposition (CCVD) method ...
Alvarez   +23 more
core   +2 more sources

Macroscale patterns of oceanic zooplankton composition and size structure

open access: yesScientific Reports, 2021
Ocean plankton comprise organisms from viruses to fish larvae that are fundamental to ecosystem functioning and the provision of marine services such as fisheries and CO2 sequestration.
Manoela C. Brandão   +20 more
doaj   +1 more source

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