Results 51 to 60 of about 12,297,225 (161)

Mesoclimatic origin affects alpine plant germination but not its plasticity

Oikos, EarlyView.
Mountain ecosystems are disproportionately exposed to global warming, which may put alpine plant species in particular at risk. Plant species' migration and persistence depend on successful seed regeneration, with demographic traits such as germination being strongly sensitive to both present and ancestral climate.
Lukas Dietrichstein, Norbert Helm, Kryštof Chytrý, Andreas Mayr, Johannes Wessely, Andreas Kollert, Maximiliane M. Herberich   +6 more
wiley   +1 more source

Recycling of Thermoplastic Unidirectional Tapes: An Image‐Analysis Method for Measuring Residual Glass‐Fiber Length in Convoluted Fiber Clusters

Polymer Composites, EarlyView.
Development of a rapid, low‐cost method for measuring residual glass fibre length: samples are collected by tweezers, prepared via submersion, imaged with a flatbed scanner as a cost‐effective alternative to microscopy, and analyzed for fibre length independently of image acquisition.
Tina Mayrhofer, Bernhard Cäsar, Klaus Straka, Gerald Roman Berger‐Weber   +3 more
wiley   +1 more source

Ruta graveolens L. in Evidence‐Based Phytotherapy: Pharmacological Activities, Bioactive Compounds and Safety

Phytotherapy Research, EarlyView.
Graphical representation of ethnomedical uses, major bioactive compounds, pharmacological potential and toxicological risks of Ruta graveolens L. ABSTRACT Ruta graveolens L. is widely used in traditional European, Asian, African, and South American medicine for digestive, nervous, cardiovascular, respiratory, and reproductive disorders.
Tetiana Serhiienko, Victoriya Georgiyants, Liudas Ivanauskas, Olha Mykhailenko   +3 more
wiley   +1 more source

Bounds on the inverse signed total domination numbers in graphs [PDF]

, 2016
Let \(G=(V,E)\) be a simple graph. A function \(f:V\rightarrow \{-1,1\}\) is called an inverse signed total dominating function if the sum of its function values over any open neighborhood is at most zero.
M. Atapour, Volkmann, L., Volkmann, Lutz, L. Volkmann, S. Norouzian, S. M. Sheikholeslami, Sheikholeslami, S. M., Norouzian, S., Atapour, M.   +8 more
core   +3 more sources

The evaluation of boundary‐layer turbulence in high‐resolution numerical weather prediction simulations using Doppler lidar

Quarterly Journal of the Royal Meteorological Society, EarlyView.
A new method compares both kilometer and sub‐kilometre weather model simulations with Doppler lidar observations to assess the representation of boundary‐layer turbulence. While bulk boundary‐layer properties are well represented, vertical velocity variance is strongly underestimated in both simulations.
Natalie J. Harvey, Helen F. Dacre, Kirsty E. Hanley, Humphrey W. Lean, Christopher J. Walden, Michael Baidu, Steven Boeing, Andrew N. Ross   +7 more
wiley   +1 more source

Approximation hardness of dominating set problems in bounded degree graphs [PDF]

, 2008
We study approximation hardness of the Minimum Dominating Set problem and its variants in undirected and directed graphs. Using a similar result obtained by Trevisan for Minimum Set Cover we prove the first explicit approximation lower bounds for various
Chlebikova, Janka, Chlebik, M., Miroslav Chlebik (4461319), J Chlebíková (16079357), Chlebíková, J.   +4 more
core   +1 more source

Multiscale controls on diurnal convection in the Maritime Continent: Insights from high‐resolution observations in Timika

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Across the Maritime Continent, diurnal rainfall variability is governed by interactions between regional‐scale atmospheric drivers and local land–sea breeze circulations. Afternoon convection is initiated over land by surface heating and propagates offshore, whereas morning rainfall develops over adjacent seas and moves inland under low‐level northerly
Dony Christianto, Robert S. Plant, Thorwald H. M. Stein, Steve J. Woolnough   +3 more
wiley   +1 more source

Energy Dependence, Energy Import Diversification, and Institutional Quality: Heterogeneous Impacts on Sustainable Economic Development in the European Union

Sustainable Development, EarlyView.
ABSTRACT Energy dependence poses significant risks for economic development, particularly in regions that rely heavily on imported fossil fuels. This paper examines how energy dependence and energy import diversification influence economic development across 27 European Union countries between 2000 and 2022. Using IV‐GMM and panel quantile regressions,
Mehmet Pinar
wiley   +1 more source

Remarks on the minus (signed) total domination in graphs [PDF]

, 2008
A function f:V(G)→{+1,0,-1} defined on the vertices of a graph G is a minus total dominating function if the sum of its function values over any open neighborhood is at least 1.
Cheng, TCE, Shan, E, Cheng, T.C.E., Shan, Erfang   +3 more
core   +1 more source

How Do Governance Arrangements Shape Community Empowerment in Rural Ecotourism? Evidence From Wuyuan, China

Sustainable Development, EarlyView.
ABSTRACT This study examines how governance arrangements shape community empowerment in rural ecotourism in China. Drawing on the six dimensions of the community empowerment framework (CEF), the study analyses qualitative data from semi‐structured interviews with 30 villagers across four ecotourism‐oriented cases in Wuyuan.
Huihui Liu, Zixi Wan, Yan Yu, Mark Melchior, Carijn Beumer, Pim Martens, Madhura Rao   +6 more
wiley   +1 more source