Results 41 to 50 of about 73,118 (346)
Revista Criterios, 2021 La presencia de árboles en un ecosistema de pastoreo aumenta las poblaciones edáficas y, por ende, las relaciones simbióticas. En los ecosistemas altoandinos de la zona norte del Ecuador existen escasas investigaciones sobre esta temática.
Diego Caicedo-Rosero +3 more
doaj +3 more sources
Measurement of In-Band Optical Noise Spectral Density [PDF]
arXiv, 2021 We present a method to measure the spectral density of in-band optical transmission impairments without coherent electrical reception and digital signal processing at the receiver. We determine the method's accuracy by numerical simulations and show experimentally its feasibility, including the measure of in-band nonlinear distortions power densities.
arxiv
T-Tetrominos in Arithmetic Progression [PDF]
arXiv, 2022 A famous result of D. Walkup is that an $m\times n$ rectangle may be tiled by T-tetrominos if and only if both $m$ and $n$ are multiples of 4. The "if" portion may be proved by tiling a $4\times 4$ block, and then copying that block to fill the rectangle; but, this leads to regular, periodic tilings.
arxiv
Tannins from Acacia mearnsii De Wild. Bark: Tannin Determination and Biological Activities
Molecules, 2018 The bark of Acacia mearnsii De Wild. (black wattle) contains significant amounts of water-soluble components acalled “wattle tannin”. Following the discovery of its strong antioxidant activity, a wattle tannin dietary supplement has been developed and as
Sosuke Ogawa, Y. Yazaki
semanticscholar +1 more source
Foods, 2019 There is restricted knowledge about the potential impact of the use of different wood species on color and anthocyanin changes during the red wine aging process. This lack of knowledge is even greater when no oak wood species are used.
António M. Jordão +2 more
doaj +1 more source
Foods, 2019 Honey composition and color depend greatly on the botanical and geographical origin. Water content, water activity and color of 50 declared acacia samples, collected from three different geographical zones of Romania, together with chromatographic ...
Niculina Madas +8 more
semanticscholar +1 more source
Australian Forestry, 2019 Ceratocystis wilt and canker disease has severely compromised the profitability of Acacia mangium plantations in Southeast Asia. The focus of this review is on Ceratocystis wilt and canker disease in Acacia trees.
A. Nasution +3 more
semanticscholar +1 more source
The genus Acacia (Leguminosae, Mimosoideae) in the State of Oaxaca, México
Anales del Jardín Botánico de Madrid, 2000 This is a contribution to the knowledge of the genus Acacia in Oaxaca; a study based on herbarium specimens from more than 12 institutions. This includes 35 different species, of which 4 are endemic to the Rio Balsas Basin in Oaxaca State.
María de Lourdes Rico Arce
doaj +1 more source
Impacts of land cover on reptile movement and habitat use in farming landscapes
Animal Conservation, Volume 25, Issue 6, Page 837-848, December 2022., 2022 We studied the movement ecology of Oriental garden lizard (Calotes versicolor) in Chakwal District, Pakistan to understand the role of different landscape elements in facilitating population persistence. Habitat selection analysis showed that lizards preferred tree patches, avoided farms, roads, water bodies and human dwellings, and used grasslands in ...
S. Balouch +4 more
wiley +1 more source
Extreme fire severity interacts with seed traits to moderate post‐fire species assemblages
American Journal of Botany, EarlyView.Abstract Premise Climate change is globally pushing fire regimes to new extremes, with unprecedented large‐scale severe fires. Persistent soil seed banks are a key mechanism for plant species recovery after fires, but extreme fire severity may generate soil temperatures beyond thresholds seeds are adapted to.
Michi Sano +3 more
wiley +1 more source