Results 161 to 170 of about 1,092,459 (292)

Estructuras discretas

open access: yes, 2013
Diapositivas utilizadas en el curso de Matemáticas discretas, sobre temas orientados a ingenieria informáticas, como: sistemas de numeración, lógica de las computadoras, lógica binaria, retículos, máquinas de estado finito, lenguajes formales, funciones iteradas, álgebras de Boole y las gramáticas de los lenguajes formales.
openaire   +1 more source

Estructuras Creativas

open access: yes, 2015
Presentación del seminario de Estructuras Creativas cuyo objetivo es desmitificar el acto creativo en un trabajo proyectual. Este seminario se imparte en universidades e instituciones de educación superior como complemento a curriculas fijas o como actualización de profesionales.
openaire   +1 more source

Nutrient addition and herbivore exclusion alter plant traits and biomass via distinct mechanisms: intraspecific variability vs species turnover

open access: yesNew Phytologist, Volume 249, Issue 5, Page 2251-2262, March 2026.
Summary Soil nutrients and vertebrate herbivory are key ecological factors with opposite and interactive effects on grassland plant traits and biomass. Partitioning trait changes into species turnover and intraspecific change provides a mechanistic linkage between trait shifts and biomass responses.
Xuebin Yan   +2 more
wiley   +1 more source

Was the evolution of faster stomata driven by increased gas exchange rates rather than increasing water use efficiency?

open access: yesNew Phytologist, Volume 249, Issue 5, Page 2355-2371, March 2026.
Summary Following changes in light flux, photosynthesis (A) typically adjusts more quickly than stomatal conductance (gs), which is dependent on changes in stomatal aperture. Faster stomatal responses are proposed to reduce water loss and enhance growth in dynamic light environments. Stomatal opening and closing parameters were determined in a range of
Robert A. Brench   +4 more
wiley   +1 more source

Biogeography and host associations of Russula subsection Xerampelinae based on large‐scale analysis of UNITE sequence data

open access: yesNew Phytologist, Volume 249, Issue 5, Page 2547-2558, March 2026.
Summary Estimating fungal geographic ranges and niche potential is limited by the ephemeral nature of fruiting bodies. While environmental DNA offers broader insights, species‐level identification remains difficult due to uncertain sequence clustering thresholds, low interspecific variation in barcoding regions, and limited taxonomic resolution.
Chance R. Noffsinger   +7 more
wiley   +1 more source

Masa oculta: reto diagnóstico en una adolescente con dolor abdominal agudo. [PDF]

open access: yesActa Gastroenterol Latinoam
Loaiza Pacheco I   +4 more
europepmc   +1 more source

Revisiting the relationship between stomatal size and speed across species – a meta‐analysis

open access: yesNew Phytologist, Volume 249, Issue 5, Page 2338-2354, March 2026.
Summary The rate of stomatal opening and closure in response to changes in light affects leaf photosynthesis and water use. However, it is unclear how strongly stomatal size (SS) and density (SD) influence stomatal conductance (gs) kinetics, and whether variation arises from methodological differences, guard cell type or degree of amphistomaty.
Nik Woning   +31 more
wiley   +1 more source

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