Results 51 to 60 of about 35,678 (164)
Perovskite Thin Single Crystal for a High Performance and Long Endurance Memristor
Advanced Electronic Materials, Volume 10, Issue 5, May 2024.An extremely stable metal halide perovskite memristor based on thin single crystal configuration is fabricated with simple architecture and an extraordinary endurance by keeping a reasonable LRS/HRS ratio. This exceptional stability enables to analyze the electroforming process and LRS state through impedance spectroscopy, providing insights into the ...
Ismael Fernandez‐Guillen +7 more
wiley +1 more source
Medidas de prevención de corrupción y refuerzo de la transparencia en la contratación pública
Revista de Estudios de la Administración Local y Autonómica, 2017 Este trabajo reflexiona sobre la situación de la contratación pública y las posibles medidas para corregir adecuadamente los problemas de opacidad y corrupción en la contratación pública en España.
José María Gimeno Feliú
doaj +3 more sources
Boletín Mexicano de Derecho ComparadoEn atención a las necesidades especiales de ciertas entidades públicas, y a la importancia de cumplir requerimientos insatisfechos, el legislador colombiano, a la par de expedir el Estatuto General de Contratación de la Administración Pública, creó ...
Antonio Alejandro Barreto Moreno +1 more
doaj +1 more source
Numeracy selectivity of Spanish migrants in colonial America (sixteenth–eighteenth centuries)
The Economic History Review, Volume 77, Issue 2, Page 503-522, May 2024.Abstract Since the arrival of Christopher Columbus in the so‐called New World in 1492, hundreds of thousands of Spaniards settled in Central and South America. This paper assesses the skill selectivity of Spanish migrants who went to Hispanic America during the sixteenth to eighteenth centuries for the first time.
María del Carmen Pérez‐Artés
wiley +1 more source
Las reclamaciones en materia de contratación pública en Navarra
Documentación Administrativa, 2012 La regulación de las reclamaciones en materia de contratación pública en Navarra se analiza desde su perspectiva estática y dinámica. En la estructura estática de la relación jurídica de la reclamación se estudian los sujetos de la relación (los ...
José Francisco Alenza García
doaj +1 more source
Gypsum lichens: A global data set of lichen species from gypsum ecosystems
Ecology, Volume 105, Issue 4, April 2024.Abstract Lichens are significant components of the biological soil crust communities in gypsum ecosystems and are involved in several processes related to ecosystem functioning, such as water and nutrient cycles or protection against soil erosion. Although numerous studies centered on lichen taxonomy and ecology have been performed in these habitats ...
Sergio Muriel +3 more
wiley +1 more source
La contratación estatal en la Agencia Nacional de Contratación Pública – Colombia Compra Eficiente
, 2019 The State contracting in Colombia is a subject of vital importance for the development and the economy of the State, since it is through it that the fulfillment of the ends of the state is guaranteed.
Contreras Guevara, Mónica Alejandra +1 more
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Homogeneous microenvironmental conditions under nurses promote facilitation
Functional Ecology, Volume 38, Issue 2, Page 350-362, February 2024.Read the free Plain Language Summary for this article on the Journal blog. Abstract Biotic interactions are highly affected by species traits and micro‐environmental variability. Research on facilitation has primarily focused on how nurse species alleviate abiotic stress for beneficiary species, while the impact of the micro‐environmental variability ...
Ricardo Sánchez‐Martín +6 more
wiley +1 more source
La etapa de planeación en la contratación estatal
, 2016 Con la investigación realizada, se hace un aporte a la ciencia jurídica, al identificar falencias o errores que cometen las entidades estatales, en el cumplimiento de requisitos legales para la elaboración de los estudios previos como principal ...
Penagos Castellanos, John +2 more
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Indebida fundamentación de la fuerza mayor como causal de la urgencia manifiesta
, 2022 State contracting regulates all procedures carried out by State entities, especially contracts entered for the achievement of their purposes. It is mainly regulated by the General Statute of Contracting of the Public Administration -Law 80 of 1993 ...
Guzman Ramirez, Maria Paula
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