Results 111 to 120 of about 795,848 (244)

Síndrome de dispersión pigmentaria y glaucoma pigmentario: características epidemiológicas, clínicas y evolución en un grupo de pacientes pertenecientes al subsistema de salud de las Fuerzas Militares Hospital Militar Central, entre los años 2000 a 2010 [PDF]

open access: yes, 2013
El trabajo pretende describir las características epidemiológicas, clínicas y evolución de un grupo de pacientes diagnosticados con Síndrome de Dispersión Pigmentaria o Glaucoma Pigmentario, en el período de 2000 al 2010, en el Servicio de Oftalmología ...
Pinilla Torres, Natalia María   +1 more
core  

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

open access: yesAdvanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo   +3 more
wiley   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

Historical explanation of the origin of the herpetofauna of Mexico Explicación histórica del origen de la herpetofauna de México

open access: yesRevista Mexicana de Biodiversidad, 2009
A hypothesis of historical area relationships for Mexico, Central, and South America was investigated by a cladistic biogographic analysis using 10 taxon cladograms of the herpetofauna of Mexico.
Oscar Flores-Villela   +1 more
doaj  

Caracterización de pacientes con diferentes niveles de riesgo cardiovascular mediante diagramas de Poincaré [PDF]

open access: yes, 2016
En este trabajo se propone caracterizar la dinámica no-lineal de los sistemas cardíaco, vascular y respiratorio a partir de los diagramas de Poincaré. Se han analizado 46 pacientes con cardiomiopatía isquémica (ICM) o dilatada (DCM), y 35 sujetos sanos ...
Bayés Genis, Antoni   +4 more
core  

Perturbative quantum analysis and classical limit of the electron scattering by a solenoidal magnetic field

open access: yes, 2009
A well known example in quantum electrodynamics (QED) shows that Coulomb scattering of unpolarized electrons, calculated to lowest order in perturbation theory, yields a results that exactly coincides (in the non-relativistic limit) with the Rutherford ...
Moreno, Matias   +2 more
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Web of Science vs. SCOPUS: un estudio cuantitativo en Ingeniería Química

open access: yesAnales de Documentación, 2010
El propósito de este estudio es ofrecer a los investigadores químicos, una visión clara y práctica, aplicando métodos cuantitativos, sobre las dos plataformas de información científica más extendidas hoy día: Web of Science (Thomson Reuters) y Scopus ...
María Isabel Escalona Fernández   +2 more
doaj  

De la creación del Museo Arqueológico de Medina Sidonia (Cádiz) [PDF]

open access: yesBoletín del Museo Arqueológico Nacional, 2017
El Museo Arqueológico de Medina Sidonia –MAMS– es una institución de ámbito local dependiente del Ayuntamiento de Medina Sidonia (Cádiz). De reciente creación –no cuenta con más de cinco años de existencia–, nace con la vocación de mostrar y difundir en ...
Salvador Montañés Caballero
doaj  

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