Results 141 to 150 of about 11,350 (255)

Digitising biological collections to advance National Species Inventories: A case study from the flora of Chile

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1210-1222, July 2026.
In response to Chile's public policy to establish a national biodiversity inventory and monitoring system, we launched the HerbarioDigital.cl portal. We have digitised over 120,000 specimens representing more than 3,900 species from two Chilean herbaria, integrating them through a curated local taxonomic index.
Ricardo A. Segovia   +5 more
wiley   +1 more source

Clasificación vía aprendizaje automático de conformaciones moleculares en estructuras teloméricas

open access: yesMaskana, 2017
ABSTRACT A great number of studies have been published on the area of small molecules bound to telomeric sequences that fold on a non-cannonical DNA structure known as G-quadruplex structure. The study of these structures has been driven for its potential as targets for drug development.
Daniela A Barragán R.   +2 more
openaire   +1 more source

Digitisation of herbarium specimens to the benefit of research: An African perspective focusing on South Africa and Western Indian Ocean Island states

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1042-1056, July 2026.
Botanical exploration, discovery and conservation rely heavily on access to herbarium collections. Recently, digital access to label information, including georeferenced locality data, and images of herbarium specimens available online have greatly increased usage of herbarium specimen data.
Ronell R. Klopper   +9 more
wiley   +1 more source

VACANCIAS EN BORDES DE ESTRUCTURA HCP

open access: yesAnales (Asociación Física Argentina), 2013
Aplicamos la técnica de estática molecular para obtener la estructura de menor energía de un borde de grano simétrico (1121) en redes hcp. Utilizamos potenciales de muchos cuerpos de tipo átomo embebido para representar las interacciones atómicas. A fin
J. R. Fernandez   +2 more
doaj  

Automated extraction of leaf mass per area from digitized herbarium specimens

open access: yesNew Phytologist, Volume 251, Issue 2, Page 896-908, July 2026.
Summary The digitization of vast herbarium collections has made millions of plant specimen images freely available online, which can now be used to generate phenotypic datasets of unprecedented scope. Here, we assess the potential of computer vision tools to automate the extraction of predicted leaf mass per area (LMApred) from digitized herbarium ...
Thais Vasconcelos   +4 more
wiley   +1 more source

Estudio de la estructura molecular de compuestos inhibidores de PIM quinasas mediante química computacional [PDF]

open access: yes
Las PIM quinasas son enzimas de naturaleza proteica, cruciales para la regulación del crecimiento, migración y supervivencia celular que aparecen expresadas de formal anormal en muchos tipos de cánceres humanos.
Rodríguez López, Vanessa
core  

Seeing herbaria in a new light: leaf reflectance spectroscopy unlocks trait and classification modeling in plant biodiversity collections

open access: yesNew Phytologist, Volume 251, Issue 2, Page 811-829, July 2026.
Summary Reflectance spectroscopy is a rapid method for estimating traits and discriminating species. Spectral libraries from herbarium specimens represent an untapped resource for generating broad phenomic datasets across space, time, and taxa. We conducted a proof‐of‐concept study using trait data and spectra from herbarium specimens up to 179 yr old,
Dawson M. White   +6 more
wiley   +1 more source

Proyecto básico de estructura de nave industrial [PDF]

open access: yes, 2017
El trabajo final de grado consiste en realizar el proyecto de la estructura de una nave industrial teniendo en cuenta la ubicación y el uso al que se destine dicha naveMartínez Torregrosa, C. (2017).
Martínez Torregrosa, Carlos
core  

ARCILLA BENTONÍTICA MODIFICADA CON QUITOSANO PARA MATERIALES COMPUESTOS BIODEGRADABLES

open access: yesDyna, 2011
Se estudió la modificación de una arcilla colombiana tipo montmorillonita con un biopolímero policatiónico -quitosano-, y se evaluó el efecto del peso molecular del modificante en la efectividad del tratamiento de modificación.
GUSTAVO NEIRA ARENAS   +2 more
doaj  

Estudio mecanocuántico de la estructura molecular del paracetamol

open access: yes, 2018
El paracetamol (C8H9NO2) es un fármaco que actúa como analgésico y antipirético, es decir, se trata de un medicamento con propiedades para calmar el dolor y reducir la fiebre. En el presente Trabajo de Fin de Grado se realiza un estudio conformacional teórico sobre los cuatro posibles confórmeros del paracetamol con el objetivo de investigar la ...
openaire   +1 more source

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