Results 21 to 30 of about 795,848 (244)

Elementos de interés en la investigación didáctica y enseñanza de la dispersión estadística [PDF]

open access: yes, 2013
Uno de los puntos débiles del actual currículo de secundaria en Matemáticas es la enseñanza de la dispersión. Son varios los motivos que ocasionan esta debilidad.
Estepa, Antonio, Pino, Jesús del
core  

Population increase of the invasive red-whiskered bulbul Pycnonotus jocosus in Valencia, Spain

open access: yesAnimal Biodiversity and Conservation, 2022
Población en aumento del invasor bulbul orfeo Pycnonotus jocosus en Valencia, España El bulbul orfeo Pycnonotus jocosus es un paseriforme de talla mediana que se ha clasificado como invasor debido a su impacto en los ecosistemas invadidos.
L. Domínguez-Pérez, J. A. Gil-Delgado
doaj   +1 more source

Fine-scale population structure and asymmetrical dispersal in an obligate salt-marsh passerine, the Saltmarsh Sparrow (Ammodramus Caudacutus) [PDF]

open access: yes, 2012
Understanding the spatial scale of gene flow can yield valuable insight into the ecology of an organism and guide conservation strategies. Fine-scale genetic structure is uncommon in migratory passerines because of their high vagility and presumed high ...
Babbitt, Kimberly J.   +3 more
core   +2 more sources

Financial Burden Associated With Hospitalisation Among Families of Childhood Brain Tumours in Australia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Families of children with cancer experience significant financial strain, even with universal healthcare. Indirect costs, such as productivity losses and non‐medical expenses, are rarely included in economic evaluations, and little is known about how effectively financial aid programmes alleviate this burden. Childhood brain tumours
Megumi Lim   +8 more
wiley   +1 more source

Origen y endurecimiento por dispersión de carbonitruros en un acero comercial microaleado al niobio y laminado en caliente

open access: yesRevista de Metalurgia, 1998
Se presenta un estudio sobre el origen de los carbonitruros de niobio y su efecto en el endurecimiento de un acero comercial microaleado y laminado en caliente.
E. Valencia, H. J. Kestenbach
doaj   +1 more source

Software Radio para antenas inteligentes en comunicaciones personales multistandard [PDF]

open access: yes, 1998
Peer ReviewedPostprint (published ...
Cabrera-Bean, Margarita   +6 more
core  

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Migrations of yellowfin and skipjack tuna in the Eastern Pacific Ocean as determined by tagging experiments, 1952-1964 [PDF]

open access: yes, 1970
ENGLISH: Totals of 59,547 tagged yellowfin and 90,412 tagged skipjack were released during 1952-1964 throughout the range of the fishery in the eastern Pacific Ocean during that period.
Bayliff, William H., Fink, Bernard D.
core  

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

INFLUENCIAS DE UN RELLENO SANITARIO SOBRE LA COMPOSICIÓN, ABUNDANCIA Y DISPERSIÓN DIURNA DE LOS PECES EN LA QUEBRADA EL VENADO, CORREGIMIENTO DE CÓRDOBA, MUNICIPIO DE BUENAVENTURA (VALLE DEL CAUCA, COLOMBIA)

open access: yesRevista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2023
En 2009, se estudió la composición, abundancia y dispersión diurna de los peces presentes en la quebrada El Venado, ubicada en el corregimiento de Córdoba, municipio de Buenaventura, Valle del Cauca, Colombia. La quebrada es uno de los afluentes del río
Carlos E. Fernández M.   +2 more
doaj   +1 more source

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