Results 121 to 130 of about 87,832 (311)

Integrated morphological and physiological plasticity of root for improved seedling growth in Cunninghamia lanceolata and Schima superba under nitrogen deficiency and different NH4+-N to NO3−-N ratio

Frontiers in Plant Science
ContextRoot plasticity is an important physiological mechanism for trees to adapt to nitrogen (N) deficiency and the unequal distribution of ammonium nitrogen (NH4+-N) and nitrate nitrogen (NO3−-N) for promoting growth.
Yan-Ru Wang, Yan-Ru Wang, Xiao-Qiang Quan, Xiao-Yu Li, Cong Cheng, Cong Cheng, Jia-Xiang Yu, Jia-Xiang Yu, Xing-Hao Tang, Peng-Fei Wu, Peng-Fei Wu, Xiang-Qing Ma, Xiang-Qing Ma, Xiao-Li Yan, Xiao-Li Yan   +14 more
doaj   +1 more source

Habitat selection of moose in Sweden in managed boreal forests with Pinus contorta and P. sylvestris

Wildlife Biology, EarlyView.
Human land use can take advantage of using exotic species to increase financial benefits. However, the use of exotic tree species might affect ecosystem functioning, potentially including the habitat use and movement behaviour of animals, modifying their ecological impact, and interactions with human land use.
Maria Bolund, Fredrik Stenbacka, Fredrik Widemo, John P. Ball, Göran Ericsson, Wiebke Neumann   +5 more
wiley   +1 more source

Specific gas permeability of normal and nanosilver-impregnated solid wood species as influenced by heat-treatment

Maderas: Ciencia y Tecnología, 2019
The effect of heat treatment at 50 and up to 150°C was studied on dowel-shape specimens prepared from beech (Fagus orientalis), poplar (Populus nigra), and fir (Abies alba) wood.
Hamid R. Taghiyari, Stavros Avramidis
doaj  

High/low temperature setups for submillimetric samples under various extreme conditions at the AILES beamline

Journal of Synchrotron Radiation, EarlyView.
Two complementary high‐ and low‐temperature experimental setups have been developed at the AILES beamline of Synchrotron SOLEIL to enable infrared and terahertz spectroscopy of submillimetric samples under extreme and well controlled pressure and temperature conditions (from 10 K to 600 K and from vacuum up to 100 GPa).
Cecilia Taverna, Kelly Rader, Jean Blaise Brubach, Alexandre Voute, Mariia Dronova, Laurent Couillard-Labonnote, Quentin Libois, Pascale Roy, Marine Verseils   +8 more
wiley   +1 more source

Soil and microbial responses to wild ungulate trampling depend more on ecosystem type than trampling severity

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Physical trampling is a ubiquitous activity of walking vertebrates, but is poorly understood as a mechanism impacting biogeochemical cycling in soil. Lack of detailed knowledge of soil abiotic–biotic interactions underlying trampling effects, and the primary sources of ...
G. Adam Meyer, Shawn J. Leroux, Kathryn E. Hargan, Niels van Miltenburg   +3 more
wiley   +1 more source

The confinedness of undergrowth Picea obovata and Abies sibirica (Pinaceae) to tree-related microhabitats and their development features at various phases of post-fire succession in green-moss dark coniferous forests in the Northern Pre-Urals

Nature Conservation Research: Заповедная наука
Forest ecology frequently explores the role of microsite mosaics in forest communities for the regeneration of forest-forming tree species. The present study aims to find out whether the ontogenetic structure and differentiation of Siberian spruce (Picea
Alexei S. Efimenko, Tatiana Yu. Braslavskaya, Alexei A. Aleinikov, Alexander V. Tyurin   +3 more
doaj   +1 more source

Facilitation influences when trees grow, but not growth rate in a dry temperate forest

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Accurately predicting the role of forests in the global carbon cycle requires a detailed understanding of the factors mediating the timing and magnitude of radial stem growth. While weather conditions and topo‐edaphic factors play a critical role in mediating short‐term
Erin McCann, Marko J. Spasojevic
wiley   +1 more source

Monitoring Quality of Mafia‐Connected Accountants

Journal of Accounting Research, EarlyView.
ABSTRACT We investigate the monitoring quality of accountants with ties to the Mafia in their role as auditors for “clean” firms—those with no known ties to organized crime. Using a proprietary government database, we identify Italian firms with alleged ties to the Mafia through their executives, directors, or shareholders.
Pietro A. Bianchi, Jere R. Francis, Antonio Marra, Nicola Pecchiari   +3 more
wiley   +1 more source

Diseño eficiente computacional de filtros Fir sin multiplicadores [PDF]

, 2007
This paper presents a very simple multiplier-free finite impulse response (FIR) lowpass filter design procedure. It involves approximation of an equiripple FIR by rounding operation and application of the sharpening technique.
GORDANA JOVANOVIC DOLECEK
core  

Consensus? An Examination of Differences in Earnings Information Across Forecast Data Providers

Journal of Accounting Research, EarlyView.
ABSTRACT We compare the earnings information produced by the five largest forecast data providers (FDPs)—Bloomberg, Capital IQ, FactSet, I/B/E/S, and Zacks—and observe substantial differences across FDPs in both forecasted and actual street earnings values, and thus the earnings surprise, for the same firm‐quarter.
Stephannie Larocque, Jessica Watkins, Eric Weisbrod   +2 more
wiley   +1 more source