Results 21 to 30 of about 64,748 (108)

Thermal Expansion of MgTiO3 Made by Sol-Gel Technique at Temperature Range 25–890 °C

open access: yesCrystals, 2020
MgTiO3 is a material commonly used in the industry as capacitors and resistors. The high-temperature structure of MgTiO3 has been reported only for materials synthesized by the solid-state method.
T. Tuval   +5 more
semanticscholar   +1 more source

"De reunión en reunión": la observación participante en el conocimiento etnográfico de procesos políticos 'urbanos'

open access: yesHorizontes Antropológicos, 2000
Discuto la validez de hacer observación participante de reuniones entre gobernantes y gobernados para conocer procesos políticos 'urbanos' considerando mi investigación sobre las implicancias de la política facciosa en la producción de representaciones y
Sabina Frederic
doaj   +1 more source

Cruzando a linha vermelha: questões não resolvidas no debate sobre direitos sexuais

open access: yesHorizontes Antropológicos, 2006
No presente artigo busco apresentar as visões teóricas e políticas vigentes no campo que tem produzido um discurso sobre direitos sexuais, no sentido de chamar a atenção para as instabilidades e contradições que caracterizam as esferas nas quais vai ...
Sonia Corrêa
doaj   +1 more source

Decadencia y apogeo del espacio. Dimensiones culturales del cambio socioeconómico en un caso de renovación urbana en Colombia

open access: yesHorizontes Antropológicos, 2016
Resumen En este artículo me propongo analizar la valoración simbólica de un espacio urbano a lo largo de un periodo de transformaciones económicas en Pereira, Colombia.
Gregorio Hernández Pulgarín
doaj   +1 more source

Volume growth and closed geodesics on Riemannian manifolds of hyperbolic type

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2005, Issue 6, Page 875-893, 2005., 2005
We study the volume growth function of geodesic spheres in the universal Riemannian covering of a compact manifold of hyperbolic type. Furthermore, we investigate the growth rate of closed geodesics in compact manifolds of hyperbolic type.
Jean-Pierre Ezin, Carlos Ogouyandjou
wiley   +1 more source

MiR-890 inhibits proliferation and invasion and induces apoptosis in triple-negative breast cancer cells by targeting CD147

open access: yesBMC Cancer, 2019
Triple-negative breast cancer (TNBC) is a type of breast cancer with a high degree of malignancy. Because of the remarkable biological characteristics of high invasion, metastasis and recurrence, TNBC is often accompanied by a poor prognosis.
Cheng Wang   +5 more
semanticscholar   +1 more source

La classification de la diversité de maïs des Mixtèques et des Chatines de la Sierra Sur, Oaxaca Mexique

open access: yesRevue d'ethnoécologie, 2021
This paper explores the traditional knowledge about maize diversity in two indigenous communities. We describe the differences on maize vocabularies and on the folk taxonomy in order to define their effect on maize population differentiation between both
Quetzalcóatl Orozco-Ramírez   +1 more
doaj   +1 more source

Neural biomarker diagnosis and prediction to mild cognitive impairment and Alzheimer’s disease using EEG technology

open access: yesAlzheimer's Research & Therapy, 2023
Background Electroencephalogram (EEG) has emerged as a non-invasive tool to detect the aberrant neuronal activity related to different stages of Alzheimer’s disease (AD). However, the effectiveness of EEG in the precise diagnosis and assessment of AD and
Bin Jiao   +19 more
semanticscholar   +1 more source

Making the most of grasslands and heathlands

open access: yesRevue d'ethnoécologie, 2021
Compared to traditional (pre-industrial) forest-based agricultural systems, traditional agriculture as practiced in grasslands and heathlands has been neglected, both by agronomists and by ethnoecologists.
Doyle McKey
doaj   +1 more source

Vous avez dit paléogénomique ?

open access: yesRevue d'ethnoécologie, 2021
Palaeogenomics is a recent discipline that studies the genomes of ancient individuals. Since its appearance in 2001, it has widely expanded, addressing increasingly ambitious themes, from the reconstruction of extinct animals' genomes of to the inference
Céline Bon   +1 more
doaj   +1 more source

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