Results 111 to 120 of about 2,634,327 (377)

Nuevos registros y notas adicionales comentadas sobre la avifauna de la ciudad de Xalapa, Veracruz, México.

open access: yes, 2016
El conocimiento detallado de la avifauna en una region constituye una valiosa base de datos que permite examinar cambios temporales de la riqueza y tamanos poblacionales de las especies, para actualizar su estado de conservacion y desarrollar planes de ...
F. González-García   +4 more
semanticscholar   +1 more source

Rediscovery of Passiflora clypeophylla (subgenus Decaloba): a highly threatened and narrow endemic species found within a karstic canyon in Guatemala

open access: yesNordic Journal of Botany, EarlyView.
Passiflora clypeophylla, an endemic species to the Guatemalan karstic forests last seen in 1889 and deemed extinct, was rediscovered in the Department of Alta Verapaz, east of Cobán. The species was known only from a single specimen hailed from the type locality, Rubel Cruz, where it has been found again. An additional location has been identified in a
J.R. Kuethe   +3 more
wiley   +1 more source

Proposed model improvement for “mypes” software producers

open access: yesInterfases, 2017
This work is based on the results of the research “Analysis of the use of software quality models: a proposal to improve processes in the ‘mypes’ producing software in Lima”, which was supported by the Institute of Scientific Research of the University ...
Miriam Elizabeth Amable-Ciudad
doaj   +1 more source

Co-encapsulation of Daphnia magna and microalgae in silica matrices, a stepping stone toward a portable microcosm [PDF]

open access: yes, 2014
We report on the first silica encapsulation of a metazoan (Daphnia magna), with a high initial viability (96% of the population remained active 48 h after encapsulation).
Aldabe, Sara Alfonsina   +4 more
core   +1 more source

Ruido en la ciudad. Contaminación auditiva y ciudad caminable

open access: yes, 2016
Noise pollution is a phenomenon insufficiently studied in the city-environment relationship. The combination of constant and permanent noise, indiscriminate use of cars and the poorly integrated public policies, cause an inaccurate and unclear ...
Miriam Alfie Cohen, O. Castillo
semanticscholar   +1 more source

Hechtia mixtecana sp. nov. (Hechtioideae; Bromeliaceae), from Oaxaca, Mexico

open access: yesNordic Journal of Botany, EarlyView.
Botanical explorations carried out in the state of Oaxaca, Mexico, led to the discovery of a new Bromeliaceae: Hechtia mixtecana,which is here described and illustrated. The new taxon is compared with the morphologically similar Hechtia fragilis, Hechtia lyman‐smithii, and Hechtia minuta.
Rodrigo Alejandro Hernández‐ Cárdenas   +4 more
wiley   +1 more source

Un nou model simula l'efecte dels gens en el desenvolupament dels organismes [PDF]

open access: yes, 2010
Investigadors de la UAB i de la Universitat de Helsinki han desenvolupat un model matemàtic capaç de descriure, amb més precisió i realisme que mai, l'acció dels gens sobre l'organització de les cèl·lules i, per tant, sobre la morfologia de tot l ...
Salazar Ciudad, Isaac
core   +1 more source

Acid-Sensing Ion Channels Activated by Evoked Released Protons Modulate Synaptic Transmission at the Mouse Calyx of Held Synapse [PDF]

open access: yes, 2017
Acid-sensing ion channels (ASICs) regulate synaptic activities and play important roles in neurodegenerative diseases. We found that these channels can be activated in neurons of the medial nucleus of the trapezoid body (MNTB) of the auditory system in ...
Di Guilmi, Mariano Nicolás   +3 more
core   +1 more source

Revitalizing endangered mycocultural heritage in Mesoamerica: The case of the Tlahuica‐Pjiekakjoo culture

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The preservation and revitalization of mycocultural heritage, developed over centuries of human‐mushroom interaction, contributes to safeguarding both natural ecosystems and the promotion of sustainable rural development, one of the biggest global challenges currently faced by humankind.
Elisette Ramírez‐Carbajal   +8 more
wiley   +1 more source

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