Results 61 to 70 of about 4,847 (244)
La construcción nacional del territorio de Guatemala, 1825-1934
Revista de Historia, 2002 Resumen Con base en la interpretación de mapas antiguos y el análisis del discurso de los decretos dictados por diversos gobiernos guatemaltecos en materia de territorialidad, los autores avanzan algunas explicaciones para entender la fragmentación del ...
Arturo Taracena
doaj
Advanced Materials, EarlyView.The new Cu‐containing MOF (Me2NH2)(CuICl2)@[Cu4(INA)4Cl2O]·1.5dmf (3) contains a cation and an anion as guests and shows UV‐near‐mid‐IR absorption and near‐IR emission. MOF 3 shows gas‐solid reactivity in the presence of NH3 and HCOOH to yield two new 3D MOF.
Rajat Saha +10 more
wiley +1 more source
Padrões de crescimento intra-uterino e fluxometria Doppler.
Acta Médica Portuguesa, 1996 The aim of this study was to evaluate the accuracy of ultrasound biometric and hemodynamic fetal parameters for the prenatal diagnosis of intrauterine retardation in a sample of 438 pregnant women who had their first visit before the 16th week of ...
F Cardoso +8 more
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COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption
Advanced Materials, EarlyView.A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas +11 more
wiley +1 more source
Revista del Instituto Electoral del Estado de México. Apuntes Electorales, 2017 El presente artículo tiene como objeto el estudio de una función considerada fundamental dentro del amplio proceso de la organización y la admi-nistración de las elecciones: el empadronamiento electoral.
Julio Alejandro Ascarrunz Medinaceli +1 more
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Thermal Characterization of [C2Im][NO3] and Multivalent Nitrate Salts Mixtures
CrystalsDue to their intrinsic properties, the current applicability of ionic liquids is enormous. In particular, their use in electrochemistry is beyond question.
Pablo Vallet +5 more
doaj +1 more source
Eutectozymes as Soft Hybrid Materials for Advanced Biocatalysis
Advanced Materials, EarlyView.Eutectozymes are sustainable hybrid materials that embed a GOx–HRP cascade within hydrophobic eutectogels featuring a dual supramolecular–covalent network. This architecture preserves native enzyme structure and stability, enables efficient heterogeneous biocatalysis in aqueous media, and positions eutectogels as robust platforms for next‐generation ...
Manuel Eduardo Martinez Cartagena +10 more
wiley +1 more source
Alotransplante cardíaco em ratos: complicações cirúrgicas e sobrevida do enxerto
Medicina, 1996 O objetivo desta apresentação é o de relatar as complicações cirúrgicas ocorridas no intra-operatório e, a sobrevida do coração transplantado. Os autores realizaram o alotransplante cardíaco heterotópico, utilizando, como doadores, ratos Wistar e, como ...
Adauto J. Cologna +3 more
doaj +1 more source
High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks
Advanced Materials, EarlyView.A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza +11 more
wiley +1 more source
Nuevos antitrombóticos. ¿Qué debe conocer el cirujano cardiovascular?
Cirugía Cardiovascular, 2011 La trombosis es una de las causas de muerte más importante en los países industrializados. La trombosis arterial es responsable del infarto de miocardio y de los accidentes cerebrovasculares y se genera en zonas de daño arterial.
José A. Páramo, Gregorio Rábago
doaj +1 more source