Results 51 to 60 of about 917,175 (219)

Tasa y tributo en la temprana colonia: la encomienda de Songo, Suri y Oyuni en las yungas de La Paz (1545-1573)

open access: yesMemoria Americana, 2010
En este trabajo se aborda el estudio de las tres tasas conocidas de la encomienda de Songo, Suri y Oyuni del siglo XVI. Estos tres repartimientos se ubicaban en los valles orientales de La Paz y su principal riqueza la constituía su producción de coca ...
María Fernanda Percovich
doaj  

The pivotal functionality of the amyloid protein TasA in bacillus physiology and fitness [PDF]

open access: yes, 2018
Biofilms are complex bacterial communities formed on any virtual surface and composed of cells embedded in an extracellular matrix. Studies on Bacillus subtilis have demonstrated this tissue-like structure comprised of diverse exopolymeric substances ...
Cámara-Almirón, Jesús   +6 more
core   +1 more source

The protein tyrosine kinases EpsB and PtkA differentially affect biofilm formation in Bacillus subtilis [PDF]

open access: yes, 2014
The Gram-positive soil bacterium Bacillus subtilis is able to choose between motile and sessile lifestyles. The sessile way of life, also referred to as biofilm, depends on the formation of an extracellular polysaccharide matrix and some extracellular ...
Jan Gerwig   +8 more
core   +3 more sources

In vitro culture, cryopreservation, and field reintroduction of the endangered Mingan thistle

open access: yesConservation Biology, Volume 40, Issue 2, April 2026.
Abstract Current plant conservation efforts are hindered by, for example, poor seed germination, low viability, and insufficient propagation and preservation technologies. To address these problems, we devised an approach to plant conservation that integrates conservation, preservation, and restoration (CPR), which uses advanced in vitro techniques. We
Mukund R. Shukla   +4 more
wiley   +1 more source

TASA POR EL ABASTECIMIENTO DOMICILIARIO DE AGUA: NATURALEZA DE LA CONTRAPRESTACIÓN A LA VISTA DE LA RECIENTE DOCTRINA DEL TRIBUNAL SUPREMO [PDF]

open access: yesCrónica Tributaria, 2016
La naturaleza jurídica de la contraprestación del servicio de abastecimiento domiciliario de agua ha sido, y es, uno de los grandes debates doctrinales y jurisprudenciales de nuestro Derecho administrativo y tributario, que tradicionalmente ha ...
Manuel Alías Cantón
doaj  

Tasa de registros fotográficos con cámaras trampa en caminos vs. fuera de ellos: la ubicación es importante [PDF]

open access: yes, 2014
Tasa de registros fotográficos con cámaras trampa en caminos vs. fuera de ellos: la ubicación es importante. Presentamos los resultados de muestreos con cámaras trampa que realizamos en el Parque Nacional Iguazú, Misiones, Argentina, en 2008 para evaluar
de Angelo, Carlos Daniel   +2 more
core  

Phenotypic evolution in microalgae: a dramatic morphological shift in Dictyosphaerium chlorelloides (Chlorophyta) after exposure to TNT [PDF]

open access: yes, 2006
Phenotypic evolution in microalgae: a dramatic morphological shift in Dictyosphaerium chlorelloides (Chlorophyta) after exposure to TNT. The occurrence of rapid morphological evolution in the microalga Dictyosphaerium chlorelloides (Chlorophyta) was ...
Costas, Eduardo   +3 more
core   +3 more sources

Fight song: variation in singing behaviour and song structure during natural agonistic interactions in a tropical songbird, Adelaide's Warbler (Setophaga adelaidae)

open access: yesIbis, Volume 168, Issue 2, Page 766-778, April 2026.
Birds may use their singing behaviours and song structure as agonistic signals in territorial encounters. We conducted an observational study to test this hypothesis in male Adelaide's Warblers Setophaga adelaidae, a tropical songbird that defends a territory year‐round.
Peter C. Mower   +4 more
wiley   +1 more source

Muerte fetal en el Hospital Nacional Arzobispo Loayza durante el periodo agosto 2003-noviembre 2004.

open access: yesRevista Médica Herediana, 2005
Objetivos: Identificar las causas de los casos de muerte fetal, así como sus características sociodemográficas, clínicas, patológicas, y la tasa. Materiales y métodos: Se realizó un estudio descriptivo.
Luis Miguel Milla Vera   +3 more
doaj  

Evolutionary mobility and genetic dynamics of MORFFO genes: shuttling among ancient plant lineages

open access: yesNew Phytologist, Volume 250, Issue 2, Page 1248-1264, April 2026.
Summary Plastid genomes (plastomes) of land plants are characterized by their architectural and genic content stability. However, fern plastomes exhibit unexpected dynamism, characterized by the presence of mobile protein‐coding genes (CDS) – Mobile Open Reading Frames in Fern Organelles (MORFFOs). We investigate the evolutionary dynamics of MORFFOs in
Paulo H. Labiak   +3 more
wiley   +1 more source

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