Results 81 to 90 of about 2,101,762 (309)

UEMCOM Radio, educar para la profesión

open access: yesHachetetepé, 2012
Para afrontar uno de los grandes retos de la educación universitaria, ofrecer a los alumnos una enseñanza práctica que roce la profesionalidad y esté acorde con la enseñanza teórica recibida, según los preceptos del Espacio Europeo de Educación Superior,
Mohamed Lemrini El Ouahhabi   +1 more
doaj   +1 more source

Popular War: Gauchos and the Challenge to Elite Power in Northern Rio de la Plata in the Revolutionary Period [PDF]

open access: yes, 2015
A Guerra da Independência provocou a mobilização popular no norte da Argentina. Logo que a guerra foi travada nas províncias de Salta e Jujuy, a população rural se alistou em batalhões da milícia desde 1814.
Paz, Gustavo Luis
core   +1 more source

Diagnostic modulation of subgingival proteomic biomarkers by age and smoking habits in periodontitis

open access: yesJournal of Periodontology, EarlyView.
Abstract Background Although age and smoking influence the periodontal proteome, their impact on subgingival biomarkers for diagnosing periodontitis remains unclear. This multicenter study assessed their influence on subgingival proteins for disease detection.
Triana Blanco‐Pintos   +8 more
wiley   +1 more source

Jacarezinho: paradoxo de prosperidade e miséria

open access: yesMediações: Revista de Ciências Sociais, 1999
O presente trabalho tem como objetivo principal estudar de que forma as relações de trabalho características da lavoura cafeeira, representadas principalmente pelo colonato, substituído posteriormente pelo trabalhador volante bóia-fria, podem ser ...
Marcus José Takahashi Selonk
doaj   +3 more sources

Primeiro registro de Eudorylas schreiteri (Shannon) (Diptera: Pipunculidae) como parasitóide da cigarrinha do milho (Hemiptera: Cicadellidae) na Argentina, e uma tabela dos hospedeiros de pipunculídeos na região neotropical [PDF]

open access: yes, 2009
The big-headed fly Eudorylas schreiteri (Shannon) is recorded for the first time as an endoparasitoid of the corn leafhopper Dalbulus maidis (DeLong & Wolcott) in Northern Argentina.
Moya Raygoza, Gustavo   +2 more
core   +3 more sources

Microemulsion‐Based Drilling Fluids Incorporating Seashell Residue Powder: A Sustainable Approach to Fluid Loss Control

open access: yesJournal of Surfactants and Detergents, EarlyView.
Two microemulsion‐based drilling fluids incorporating SSRP were formulated using pine oil, the nonionic surfactant Alkonat L100W, and a glycerol/water solution. The results provide valuable insights into how surfactant‐assisted microemulsion systems can be engineered to enhance the performance and eco‐efficiency of drilling fluids.
Luara Ribeiro Viana   +6 more
wiley   +1 more source

Optimization of parameters for the dissolution of Mn from manganese nodules with the use of tailings in an acid medium [PDF]

open access: yes, 2019
Manganese nodules are an attractive source of base metals and critical and rare elements and are required to meet a high demand of today’s industry. In previous studies, it has been shown that high concentrations of reducing agent (Fe) in the system are ...
Castillo Segura, Jonathan Alejandro   +6 more
core   +1 more source

Effects of deficit irrigation and biostimulants on melon productivity and quality in semi‐arid conditions

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Water scarcity and soil salinization are major constraints to irrigated agriculture in semi‐arid regions, affecting crop productivity and fruit quality. Combining deficit irrigation with biostimulant application has emerged as a promising strategy to improve water use efficiency and plant stress tolerance.
Jefferson dos Santos Gomes Calaça   +12 more
wiley   +1 more source

Nanofabricated tips for device-based scanning tunneling microscopy

open access: yes, 2019
We report on the fabrication and performance of a new kind of tip for scanning tunneling microscopy. By fully incorporating a metallic tip on a silicon chip using modern micromachining and nanofabrication techniques, we realize so-called smart tips and ...
Allan, Milan P.   +7 more
core   +1 more source

A Bibliometric‐Based Review of Biochar for Salt‐Affected Soil Restoration: Mapping Research Trends and Future Directions

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT In recent years, biochar has been studied for its range of applications. Recognized by the IPCC as a key Carbon Dioxide Removal (CDR) strategy, it also stands out as an important tool for reclaiming degraded lands, including vast global areas affected by salinity, such as those in China, India, and Australia.
Juciane Vieira de Assis Freire   +12 more
wiley   +1 more source

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