Buscar recursos académicos

Prevalence and network structure of depression and its association with quality of life among older stroke survivors: findings from a national survey in China

Prevalence and network structure of depression and its association with quality of life among older stroke survivors: findings from a national survey in China

Artículo

Acceso abierto Artículo DOAJ

Ling Zhang et al · Wiley · 2025 · ISSN 2517-729X

Background Post-stroke depression (PSD) is a common neuropsychiatric problem associated with a high disease burden and reduced quality of life (QoL). To date, few studies have examined the network structure of depressive...

LCC TENDOlBzeWNoaWF0cnk~Idioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

SPARFlow: a KNIME workflow for integrated structure–activity or structure–property relationship analysis

SPARFlow: a KNIME workflow for integrated structure–activity or structure–property relationship analysis

Artículo

Material complementario disponible Artículo DOAJ

Elier E. Abreu-Martínez et al · BMC · 2026 · ISSN 1758-2946

Abstract We developed SPARFlow, an open-source KNIME workflow for structure–activity or structure–property relationship (SAR/SPR) analyses. The workflow integrates data preprocessing, chemical structure curation, sim...

LCC TENDOkluZm9ybWF0aW9uIHRlY2hub2xvZ3k~; TENDOkNoZW1pc3RyeQ~~Idioma eng

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Single Crystal EPR of the Mixed-Ligand Complex of Copper(II) with l -Glutamic Acid and 1,10-Phenanthroline: A Study on the Narrowing of the Hyperfine Structure by Exchange

Single Crystal EPR of the Mixed-Ligand Complex of Copper(II) with l -Glutamic Acid and 1,10-Phenanthroline: A Study on the Narrowing of the Hyperfine Structure by Exchange

Artículo

Acceso abierto Artículo CONICET Digital

Neuman, Nicolás Ignacio et al · American Chemical Society · 2012 · ISSN 1089-5639

We report an EPR study at X- and Q-bands of polycrystalline and single crystal samples of the mixed copper(II) complex with L-glutamic acid (glu) and 1,10-phenantroline (phen), [Cu(glu)(phen)(H2O)]+ NO3 −·2(H2O). The ...

Idioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Synergistic Bearing Effect and Failure Mechanism of Backfill–Coal Pillar Composite Structure

Synergistic Bearing Effect and Failure Mechanism of Backfill–Coal Pillar Composite Structure

Artículo

Material complementario disponible Artículo DOAJ

Guangtao Wang et al · Wiley · 2026 · ISSN 1687-8094

Constructing backfill walls adjacent to the yield coal pillar can effectively enhance its stability. The backfill and coal pillar form a synergistic bearing structure that jointly maintains the stability of the overlying...

LCC LCC:Engineering (General). Civil engineering (General)Idioma eng

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Synthesis of healthy-structure model responses for damage quantification

Synthesis of healthy-structure model responses for damage quantification

Artículo

Acceso abierto Artículo CONICET Digital

Garrido, Carlos Hernán et al · Sage Publications Ltd · 2022 · ISSN 1475-9217

Structural Health Monitoring faces several challenges. Among them, especially for the quantification of damage, are (1) the uncertainty in the boundary conditions, (2) the need for a calibrated numerical model, or measur...

Idioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

The role of river drainages in shaping the genetic structure of capybara populations

The role of river drainages in shaping the genetic structure of capybara populations

Artículo

Material complementario disponible Artículo Repositorio UNSAM

Byrne, María Soledad et al · Springer · 2015 · ISSN 0016-6707

The capybara, Hydrochoerus hydrochaeris, is an herbivorous rodent widely distributed throughout most of South American wetlands that lives closely associated with aquatic environments. In this work, we studied the geneti...

Idioma eng

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Training binary classifiers as data structure invariants

Training binary classifiers as data structure invariants

Texto / recurso

Acceso abierto Texto / recurso RI ITBA

Molina, Facundo et al · RI ITBA · 2020 · ISSN 0270-5257

"We present a technique to distinguish valid from invalid data structure objects. The technique is based on building an artificial neural network, more precisely a binary classifier, and training it to identify valid and...

Idioma en

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Wideband Pattern Reconfigurable Printed-Yagi Antenna Array Based on Feed Structure

Wideband Pattern Reconfigurable Printed-Yagi Antenna Array Based on Feed Structure

Artículo

Acceso abierto Artículo DOAJ

Fukun Sun et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074

Abstract A pattern reconfigurable antenna array with two elements is designed in this paper. The antenna element is made up of a printed Yagi and feed structure with variable phase. By changing the states of diodes in th...

LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Index structures for distributed text databases

Index structures for distributed text databases

Artículo

Material complementario disponible Artículo SEDICI UNLP

Marin Cahiuan, Juan Mauricio · SEDICI UNLP · 2004

The Web has became an obiquitous resource for distributed computing making it relevant to investigate new ways of providing efficient access to services available at dedicated sites. Efficiency is an ever-increasing dema...

Idioma en

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Preparation, crystal structure and prodrug studies of genistein benzensulfonate

Preparation, crystal structure and prodrug studies of genistein benzensulfonate

Artículo

Acceso abierto Artículo SEDICI UNLP

Peng, You et al · SEDICI UNLP · 2011

4'-ethyl-7-phenylsulfonylgenistein (EPG, 3), a potential prodrug for genistein (1), was synthesized in high yield and its crystal structure was reported firstly. It possesses better physical and chemical properties such ...

Idioma en

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

Protein-lipid interactions modulate lipid composition, membrane dynamics and structure

Protein-lipid interactions modulate lipid composition, membrane dynamics and structure

Libro electrónico

Acceso abierto Libro electrónico CONICET Digital

Catala, Angel · Nova Science Publishers · 2018

The interactions of proteins with membrane surfaces are important to many biological processes, including signaling, recognition, and membrane trafficking, cell division and cell structure. When the Fluid Mosaic Model (F...

Idioma eng

Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.

Open Access

SHELXT– Integrated space-group and crystal-structure determination

SHELXT– Integrated space-group and crystal-structure determination

Artículo

Material complementario disponible Artículo OpenAlex

George M. Sheldrick · Acta Crystallographica Section A Foundations and Advances · 2014

The new computer program SHELXT employs a novel dual-space algorithm to solve the phase problem for single-crystal reflection data expanded to the space group P1. Missing data are taken into account and the resolution ex...

Idioma en

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Community structure in social and biological networks

Community structure in social and biological networks

Texto / recurso

Material complementario disponible Texto / recurso OpenAlex

Michelle Girvan; M. E. J. Newman · Proceedings of the National Academy of Sciences · 2002

A number of recent studies have focused on the statistical properties of networked systems such as social networks and the Worldwide Web. Researchers have concentrated particularly on a few properties that seem to be com...

Idioma en

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Crystal structure refinement withSHELXL

Crystal structure refinement withSHELXL

Artículo

Material complementario disponible Artículo OpenAlex

George M. Sheldrick · Acta Crystallographica Section C Structural Chemistry · 2014

The improvements in the crystal structure refinement program SHELXL have been closely coupled with the development and increasing importance of the CIF (Crystallographic Information Framework) format for validating and a...

Idioma en

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Dictionary of protein secondary structure: Pattern recognition of hydrogen‐bonded and geometrical features

Dictionary of protein secondary structure: Pattern recognition of hydrogen‐bonded and geometrical features

Artículo

Material complementario disponible Artículo OpenAlex

Wolfgang Kabsch; Christian Sander · Biopolymers · 1983

Abstract For a successful analysis of the relation between amino acid sequence and protein structure, an unambiguous and physically meaningful definition of secondary structure is essential. We have developed a set of si...

Idioma en

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Finding and evaluating community structure in networks

Finding and evaluating community structure in networks

Artículo

Página del recurso disponible Artículo OpenAlex

Michelle G. Newman; Michelle Girvan · Physical Review E · 2004

We propose and study a set of algorithms for discovering community structure in networks-natural divisions of network nodes into densely connected subgroups. Our algorithms all share two definitive features: first, they ...

Idioma en

Página del recurso disponiblePágina de referencia del recurso. El texto completo no está confirmado automáticamente.

Página del recurso

Highly accurate protein structure prediction with AlphaFold

Highly accurate protein structure prediction with AlphaFold

Artículo

Página del recurso disponible Artículo OpenAlex

John Jumper; Richard Evans; Alexander Pritzel; Tim Green; Michael Figurnov; Olaf Ronneberger; Kathryn Tunyasuvunakool; Russ Bates · Nature · 2021

Abstract Proteins are essential to life, and understanding their structure can facilitate a mechanistic understanding of their function. Through an enormous experimental effort 1–4 , the structures of around 100,000 un...

Idioma en

Página del recurso disponiblePágina de referencia del recurso. El texto completo no está confirmado automáticamente.

Página del recurso

Inference of Population Structure Using Multilocus Genotype Data

Inference of Population Structure Using Multilocus Genotype Data

Artículo

Página del recurso disponible Artículo OpenAlex

Jonathan K. Pritchard; Matthew Stephens; Peter Donnelly · Genetics · 2000

We describe a model-based clustering method for using multilocus genotype data to infer population structure and assign individuals to populations. We assume a model in which there are K populations (where K may be unkno...

Idioma en

Página del recurso disponiblePágina de referencia del recurso. El texto completo no está confirmado automáticamente.

Página del recurso

Synthesis, structure, and spectroscopic properties of copper(<scp>II</scp>) compounds containing nitrogen–sulphur donor ligands; the crystal and molecular structure of aqua[1,7-bis(N-methylbenzimidazol-2′-yl)-2,6-dithiaheptane]copper(<scp>II</scp>) perchlorate

Artículo

Material complementario disponible Artículo OpenAlex

Anthony W. Addison; T. Nageswara Rao; J. Reedijk; Jacobus Van Rijn; G. C. Verschoor · Journal of the Chemical Society Dalton Transactions · 1984

The linear quadridentate N2S2 donor ligand 1,7-bis(N-methylbenzimidazol-2′-yl)-2,6-dithiaheptane (bmdhp) forms mono- and di-hydrate 1 : 1 copper(II) complexes which are significantly more stable toward autoreduction th...

Idioma en

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

The Fluid Mosaic Model of the Structure of Cell Membranes

The Fluid Mosaic Model of the Structure of Cell Membranes

Artículo

Material complementario disponible Artículo OpenAlex

Sherwin J. Singer; Garth L. Nicolson · Science · 1972

A fluid mosaic model is presented for the gross organization and structure of the proteins and lipids of biological membranes. The model is consistent with the restrictions imposed by thermodynamics. In this model, the p...

Idioma en

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid

Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid

Artículo

Página del recurso disponible Artículo OpenAlex

James Dewey Watson; Francis Crick · Nature · 1953

Materias / palabras clave: Nucleic acid; Deoxyribose; Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid; DNA; Chemistry; Nucleic acid structure; Base pair; Polymer science; Biology; Biochemistry; RNA; Gene

Idioma en

Página del recurso disponiblePágina de referencia del recurso. El texto completo no está confirmado automáticamente.

Página del recurso

Changes in the Panamanian wage structure: a quantile regression analysis

Changes in the Panamanian wage structure: a quantile regression analysis

Artículo

Material complementario disponible Artículo SEDICI UNLP

Galiani, Sebastián et al · SEDICI UNLP · 2005

Los cambios en la estructura salarial de un país es un área importante de investigación. Sin embargo, la evidencia empírica sobre la evolución de salarios en los países en desarrollo aún es escasa. En este artícu...

Idioma en

Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.

Material complementario

A Theory of the Term Structure of Interest Rates

A Theory of the Term Structure of Interest Rates

Artículo

Página del recurso disponible Artículo OpenAlex

John C. Cox; Jonathan E. Ingersoll; Stephen A. Ross · Econometrica · 1985

This paper uses an intertemporal general equilibrium asset pricing model to study the term structure of interest rates. In this model, anticipations, risk aversion, investment alternatives, and preferences about the timi...

Idioma en

Página del recurso disponiblePágina de referencia del recurso. El texto completo no está confirmado automáticamente.

Página del recurso