Results 61 to 70 of about 2,379,075 (310)
Estructura y diversidad en selva inundable al centro y sur de Calakmul
, 2017 Se establecieron nueve sitios en diferentes comunidades del centro y sur del municipio de Calakmul, con la nalidad de describir la estructura y composicion de especies arboreas en la selva inundable (SI), conocida como bajos inundables o vegetacion de Ak
L. G. E. Olguín
semanticscholar +1 more source
How digitisation of herbaria reveals the botanical legacy of the First World War
PLANTS, PEOPLE, PLANET, EarlyView.Digitisation of herbarium collections is bringing greater understanding to bear on the complexity of narratives relating to the First World War and its aftermath – scientific and societal. Plant collecting during the First World War was more widespread than previously understood, contributed to the psychological well‐being of those involved and ...
Christopher Kreuzer, James A. Wearn
wiley +1 more source
, 2009 El genoma és una estructura altament dinàmica amb una certa tendència a la inestabilitat, i està, per tant, subjecte a l'escrutini de la selecció natural. En el camí d'entendre el genoma hem pogut observar el paper clau que tenen les repeticions (de tota
Armengol i Dulcet, Lluís +1 more
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Racionalidad, disciplina social y estructura [PDF]
, 2004 En gran parte de su obra, James Coleman sigue la tradición weberiana para afirmar que la sociología contemporánea debe ante todo interesarse por el hecho de que vivimos en una sociedad organizacional en que los comportamientos están fuertemente regulados
Lazega, Emmanuel
core +3 more sources
Estructura de capital. Evolución teórica
, 2017 Este trabajo tiene como objetivo examinar la evolucion de algunas teoriassobre estructura de capital, desde el punto de vista de la economia fi nancieray que han surgido a partir de la decada de 1950, con el fi n de poderevidenciar los diversos enfoques ...
Sandra milena Zambrano Vargas +1 more
semanticscholar +1 more source
Hurdles to overcome to achieve biostimulant‐driven, low chemical input crop production
PLANTS, PEOPLE, PLANET, EarlyView.Crop production requires considerable chemical inputs that result in significant greenhouse gas emissions and other environmental costs. Biostimulants are natural agents, such as microorganisms or seaweed, applied to plants and soil to stimulate plant growth and reduce chemical inputs. Biostimulant use is rapidly increasing globally, but hurdles remain,
Wolfram Buss +6 more
wiley +1 more source
Impedance-Matched, Double-Zero Optical Metamaterials Based on Weakly Resonant Metal Oxide Nanowires
Photonics, 2018 Artificial optical metamaterial with a zero index of refraction holds promise for many diverse phenomena and applications, which can be achieved with vacuum (or related) surface impedance and materials in the optical domain. Here, we propose simple metal-
Diego R. Abujetas +2 more
doaj +1 more source
, 1999 La palabra Arquitectura para nosotros tiene una significación obvia, e incluso podríamos considerar que es una palabra reservada, es decir, que no debe emplearse en otro contexto; en realidad se emplea en el sentido de Orden Superior.
Aroca Hernández-Ros, Ricardo
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A framework linking silicon fertilisation, plant silicification and soil carbon cycling
PLANTS, PEOPLE, PLANET, EarlyView.Soil organic carbon (SOC) is vital for soil health, food security, and climate change mitigation. We reviewed how silicon (Si) fertilisers, commonly used to improve plant health, may also influence SOC dynamics. We developed a framework linking Si and SOC and discussed the possibility of Si‐mediated plant changes contributing to SOC sequestration.
Xuqing Li +2 more
wiley +1 more source
Gerión, 2018 We focus on the transformation processes brought about by Roman domination in the Hispanic Northwest and its evolution from two combined perspectives: on the one hand, local and regional changes and, on the other, the different strategies followed by ...
Inés Sastre +3 more
doaj +1 more source