Results 21 to 30 of about 34,716 (248)

Wood‐Based Bioelectronics: Lignosulfonate‐Based Conductive Biocomposites for Paper Organic Electrochemical Transistors

open access: yesAdvanced Electronic Materials, EarlyView.
Biodegradable wood‐based bioelectronics are realized by integrating poly (2,3‐ethylenedioxythiopene:lignosulfonate (PEDOT:LigS) as a mixed ionicelectronic channel in organic electrochemical transistors fabricated on paper substrates. The biocomposite exhibits high conductivity, biocompatibility, and strong transistor performance, while devices built on
Katharina Matura   +8 more
wiley   +1 more source

Online self-assessment materials: do these make a difference to student learning?

open access: yesResearch in Learning Technology, 2000
In our changing world where university students are demanding a greater say in their tertiary education, and in particular are demanding a greater flexibility in the way they receive their instruction, it is imperative that we investigate and experiment ...
Mary Peat
doaj   +1 more source

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt   +6 more
wiley   +1 more source

EFFICIENCY OF FIBER FLAXBACTERIZATION BY MICROORGANISMS ISOLATED FROMVERMICOMPOST

open access: yesВестник Кемеровского государственного университета, 2015
Fiber flax is one of the most important industrial crops of the domestic crop sector, which is of great national economic and strategic importance. And at the same time fiber flax is one of the crops most difficult for cultivation.
N. N. Tereshchenko   +4 more
doaj  

Multi‐Method Geophysical Surveys Between and Around the Kerlescan and the Manio Megalithic Alignments in Carnac (Morbihan, France)

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT The Carnac alignments in Morbihan (France) are among the most famous Neolithic sites of the world. Paradoxically, they have benefited little from a thorough renewal of archaeological data over the past century. There are many reasons for this, but it is mainly because the site has been regarded more as a monument to visit and protect than as ...
Guillaume Bruniaux   +6 more
wiley   +1 more source

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

open access: yesBiological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson   +9 more
wiley   +1 more source

Early evolutionary history of the seed

open access: yesBiological 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

Estimation of water erosion threat of the Smuga stream basin in the Beskid Wyspowy / Ocena zagrożenia erozją wodną zlewni potoku Smuga w Beskidzie Wyspowym

open access: yesEnvironmental Protection and Natural Resources, 2013
In this work, results of evaluation of potential water erosion threat of the Smuga stream basin in Beskid Wyspowy were presented according to the USLE model and the GIS techniques. The basin area is 5.40 km2; mean height is 636.4 m a.s.l.
Ryczek Marek   +3 more
doaj   +1 more source

Form and load transfer aspects of foundation systems: Case‐based implementation and adaptation for buildings

open access: yesDeep Underground Science and Engineering, EarlyView.
Upon conceptualization of structural behavior, foundations in terms of their form are divided into linear (1D), planar (2D), and volumetric (3D). Regarding the load transfer mechanisms, linear foundation systems are considered vector‐acting, planar foundations are divided into section and surface‐acting, and volumetric ones are recognized as block ...
Abolfazl Eslami   +4 more
wiley   +1 more source

EFFECT OF STRAW AND GREEN MANURE ON BIOLOGICAL CONDITION SODDY-PODZOLIC SOILS [PDF]

open access: yesScientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development, 2014
Estimation of changes of a biological condition (status) soddy-podzolic sandy soil under the influence of use of mineral fertilizers and biological resources (straw of a winter wheat and stubble green manure, separately and in a combination) was an ...
Irina RUSAKOVA, Natalia SHABARDINA
doaj  

Home - About - Disclaimer - Privacy