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Mostrando ítems 1455-1474 de 2524
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Marine photosynthetic eukaryotes in polar systems: Unveiling phytoplankton diversity and composition in Antarctic waters
(CIENCIAS, 2012)Las aguas antárticas son un ambiente marino peculiar debido principalmente a las fuertes variaciones estacionales a las que están sujetos varios parámetros, como disponibilidad de luz y temperatura. Al igual que en todas ... -
Marisol (Francia, 1930-2016; de origen venezolano) «AUTORRETRATO»
(Chile. Universidad Mayor, 2018-10)De un bloque rectangular de madera pintado de color azul y amarillo nacen siete cabezas esculpidas y ensambladas del mismo material. Todas representan a la misma persona, pero todas son distintas. Algunas son abstractas, ... -
María Fernanda Cardoso (1963, Bogotá)
(Chile. Universidad Mayor, 2020-03)«Agua tejida: paisaje submarino» es una instalación antigua que con el paso de los años ha ganado actualidad. Montada por primera vez en el Museum of Fine Arts de Houston en 1994, la pieza reúne un conjunto de estrellas ... -
Martensitic transformation induced by void defects in the B2-CuZr crystal structure: an atomistic analysis
(TAYLOR & FRANCIS LTD, 2019)Molecular dynamics simulations were carried out to perform tensile tests on B2-CuZr nanofilms at 1 K with a single spherical void defect. Six different samples were considered: a void-free one and five others with a single ... -
Mastitis bovina por Prototheca zopfii: primer aislamiento en Chile
(CIENCIAS, 2011)The genus Prototheca includes unicellular achlorophyllous microalgae widely distributed in the environment, some of which could be pathogenic for human and animals. However, there is no previous report regarding these ... -
Mat thickness associated with Didymosphenia geminata and Cymbella spp. in the southern rivers of Chile
(PEERJ INC, 2019)Didymosphenia geminata is a diatom that can alter aquatic systems. Several investigations have shown as chemical, and hydraulic factors have a great influence on the proliferation of D. geminata, but the study of other ... -
Matlab programmed method for the optical flow estimation based on the integral image
(IEEE, 2018)The Optical Flow computation is the estimation of the apparent displacement of the object on an image sequence (actual image and next image). There are different methods for Optical Flow estimation, standing out exhaustive ... -
Matrix metalloproteinase 9 in the saliva of patients with Sjogren's syndrome: comment on the article by Goicovich et al - Reply
(CIENCIAS, 2004)To The Editor: We would like to thank Drs. Konttinen and Azuma fortheir interesting comments concerning some of the observa-tions in our recently published article. We will focus here on 3specific issues raised, namely the ... -
Maximal Fat Oxidation by Hear Rate Variability in Physically Active Subjects
(INST NACL EDUCACION FISICA CATALUNA, 2019)Introduction: the objective of this study is to identify the intensity of the maximal fat oxidation point (Fatmax) and its relationship to the first heart rate variability threshold (HRVT1). Subjects and methods. 23 subjects ... -
Measuring Relationships Between Proactive Reporting State-level Prescription Drug Monitoring Programs and County-level Fatal Prescription Opioid Overdoses
(LIPPINCOTT WILLIAMS & WILKINS, 2020)Background: Prescription drug monitoring programs (PDMPs) that collect and distribute information on dispensed controlled substances have been adopted by nearly all US states. We know little about program characteristics ... -
Measuring the condylar unit in condylar hyperplasia: from the sigmoid notch or from the mandibular lingula?
(Churchill Livingstone, 2017)The objective of this study was to determine, in patients with active unilateral condylar hyperplasia, which is the most reliable point to measure the length of the condylar unit: from the sigmoid notch or from the mandibular ... -
Measuring the intensity of conflicts in conservation
(WILEY, 2021-05)Conflicts between the interests of biodiversity conservation and other human activities pose a major threat to natural ecosystems and human well-being, yet few methods exist to quantify their intensity and model their ... -
Meat consumption and its association with mortality
(SOC CHILENA NUTRICION, BROMATOLOGIA & TOXICOLOGIA, 2018) -
Mechanical and structural assessment of CuZr metallic glasses rejuvenated by thermal-pressure treatments
(ELSEVIER, 2021-09-06)Thermal-pressure treatments have proved to bring metallic glasses (MGs) to rejuvenated states. However the knowledge regarding their effect on the mechanical properties and atomic structure is still limited. Here, molecular ... -
Mechanical and thermal properties of friction-stir welded joints of high density polyethylene using a non-rotational shoulder tool
(SPRINGER LONDON LTD, 2018)The effects of rotational and welding speed on the mechanical properties and thermal behavior in friction stir welded joints of high-density polyethylene using a non-rotational shoulder have been investigated experimentally. ... -
Mechanical oscillations frozen on discrete levels by two optical driving fields
(American Physical Society, 2020-07-20)We report a synchronization phenomenon which is simulated with an optomechanical system driven by two equally strong fields with different frequencies. Once the frequencies of the driving fields are properly matched, the ... -
Mechanical performance of lightweight polycrystalline Ni nanotubes
(ELSEVIER SCIENCE BV, 2019)The mechanical properties of metallic nanowires and nanotubes were investigated using atomistic molecular dynamics simulations on Ni polycrystalline structures, similar to those experimentally obtained by Atomic Layer ... -
Mechanical Properties Obtained by Indentation of Hollow Pd Nanoparticles
(AMER CHEMICAL SOC, 2018)Palladium nanoparticles are technologically important for catalysis, hydrogen storage, and many other applications. Here, we investigate the mechanical properties of Pd hollow nanoparticles of different sizes and thicknesses ... -
Mechanotransduction and epigenetic control in autoimmune diseases
(CIENCIAS, 2011)Differentiation of epithelial cells is required to define tissue architecture and appropriate function of these cells is associated with a specific pattern of gene expression. DNA methylation, post-translational modification ... -
Medidas implementadas en Chile para garantizar el acceso a los alimentos durante pandemia COVID-19
(Sociedad Chilena de Nutrición, Bromatología y Toxicología, 2021-12)Objetivo: Describir las medidas gubernamentales y no gubernamentales implementadas en Chile para garantizar las dimensiones de acceso y disponibilidad de la seguridad alimentaria durante la pandemia por COVID-19. Método: ...