La música navideña y su proyección periodística

Equipo de Investigación de Análisis y Técnica de la Información HUM21

Conocimientos, Actitudes y Prácticas del Personal de Salud que brinda Atención Prenatal de Bajo Riesgo según Normas y Protocolos en el Puesto de Salud Nuevo Amanecer, Matagalpa en el II Semestre del año 2017

El presente estudio tiene como tema Conocimientos, Actitudes y Prácticas del Personal de Salud que brinda Atención Prenatal de Bajo Riesgo según Normas y Protocolos en las áreas de Salud Primarias en Matagalpa, II Semestre del año 2017. Por lo que el subtema es Conocimientos, Actitudes y Prácticas del Personal de Salud que brinda Atención Prenatal de Bajo Riesgo según Normas y Protocolos en el Puesto de Salud Nuevo Amanecer, Matagalpa en el II Semestre del año 2017. Teniendo como objetivo Analizar los Conocimientos, Actitudes y Prácticas del Personal de Salud que brinda Atención Prenatal de Bajo Riesgo según Normas y Protocolos en el Puesto de Salud Nuevo Amanecer, Matagalpa en el II Semestre del año 2017. Los resultados de este estudio a través de la encuesta se demostró que un 89.1 % del personal de salud tiene conocimiento sobre la atención prenatal de bajo riesgo según normas y protocolos del MINSA. En la guía de observación se determino que el personal predispone de un 70.32% en cuanto a actitud positiva al brindar atención prenatal a la embarazada. Se concluyó que al evaluar las prácticas del personal de salud que brinda atención prenatal de bajo riesgo por medio de la guía de observación, la mayoría realizaron prácticas satisfactorias en las actividades efectuadas a las embarazadas por cada atenció

Photo-Oxidation of Glycerol Catalyzed by Cu/TiO2

In the present study, glycerol was oxidized by photocatalysis to glyceraldehyde, formaldehyde, and formic acid. Copper-doped TiO2 was synthesized by the evaporation-induced self-assembly approach and it was used as catalyst during the glycerol photo-oxidation reactions. The prepared mesoporous material exhibited high specific surface area (242 m2/g) and band gap energy reduction of 2.55 eV compared to pure titania (3.2 eV) by the synthesis method due to the presence of copper cations (Cu2+ identified by XPS). The catalyst showed only anatase crystalline phase with nanocrystals around 8 nm and irregular agglomerates below 100  m. The selectivity and formation rate of the products were favored towards formaldehyde and glyceraldehyde. The variables studied were catalyst amount, reaction temperature, and initial glycerol concentration. The response surface analysis was used to evaluate the effect of the variables on the product’s concentration. A higher selectivity towards formaldehyde was observed when visible light was used as the radiation source. This study is useful to evaluate the best reaction conditions towards value-added products during the oxidation of glycerol by photocatalysis using Cu/TiO2.COMECYT–Mexico (CAT2021-0032) UAEMex (6518/2022CIB

Occurrence of persistent and mobile chemicals and other contaminants of emerging concern in Spanish and Portuguese wastewater treatment plants, transnational river basins and coastal water

This work investigated, during one year, the occurrence and fate of 52 contaminants of emerging concern (CECs) in transnational river basins and coastal areas of the North of Portugal and Galicia (NW Spain) and the wastewater treatment plants (WWTPs) discharging on these environments. The different CECs investigated included pharmaceuticals, personal care products, industrial chemicals, among others, of which ca. 90 % would fulfill the persistence, mobility and toxicity criteria proposed by the German Environmental Agency. The results showed the ubiquitous presence of these CECs and an incomplete removal of over 60 % of them with current conventional WWTPs. These findings highlight the requirement of a prominent and coordinated upgrade of WWTP treatments in order to meet the future European Union regulations on urban wastewater treatment and surface water quality. In fact, even some compounds exhibiting high removals, such as caffeine or xylene sulfonate, were frequently detected in river and estuarine waters at the high ng L−1 level. Thus, our preliminary risk assessment study concluded that 18 of the CECs presented a potential risk for the environment, being caffeine, sulpiride, perfluorooctanoic acid (PFOA), diclofenac, fipronil and perfluorobutanoic acid (PFBA) the most concerning ones. Yet, additional toxicity data as well as a more robust information on persistence and mobility of CECs are necessary for better estimating the magnitude of the problem and improve risk assessment. As an example, in the case of the antidiabetic metformin, recent research has revealed toxicity for model fish species at concentration levels below those found in 40 % of the river water samples analyzed in this workThis work was financed by the European Regional Development Fund through the Interreg V-A Spain-Portugal Programme (POCTEP) 2014-2020 (ref. 0725_NOR_WATER_1_P), the Agencia Estatal de Investigación MCIN/AEI/10.13039/501100011033 (ref. PID2020-117686RB-C32) and the Consellería de Cultura, Educación y Universidades da Xunta de Galicia (ref. ED431C 2021/06). The study was also supported by the Portuguese Foundation for Science and Technology (FCT) under the projects [UIDB/04423/2020 and UIDP/04423/2020]. R.M. acknowledges Banco Santander and Universidade de Santiago de Compostela for her outstanding researcher contract, N. A. acknowledges the FCT for his Ph.D. grant DFA/BD/6218/2020 and T.N. acknowledges FCT Individual Call to Scientific Employment Stimulus 2022 (2022.02925.CEECIND). The authors also want to acknowledge Agilent Technologies for providing the equipment described in Section 2.4 and the different entities which have collaborated in the sampling campaign: VIAQUA, Augas de Galicia, Confederación Hidrográfica do Miño-Sil, Águas do Porto, Efacec and Águas do NorteS

Screening of contaminants of emerging concern in surface water and wastewater effluents, assisted by the Persistency-Mobility-Toxicity Criteria

Contaminants of emerging concern (CECs) are compounds of diverse origins that have not been deeply studied in the past which are now accruing growing environmental interest. The NOR-Water project aimed to identify the main CECs and their sources in the water environment of Northern Portugal–Galicia (located in northwest Spain) transnational region. To achieve these goals, a suspect screening analytical methodology based on the use of liquid chromatography coupled to high resolution mass spectrometry (LC-HRMS) was applied to 29 sampling sites in two campaigns. These sampling sites included river and sea water, as well as treated wastewater. The screening was driven by a library of over 3500 compounds, which included 604 compounds prioritized from different relevant lists on the basis of the persistency, mobility, and toxicity criteria. Thus, a total of 343 chemicals could be tentatively identified in the analyzed samples. This list of 343 identified chemicals was submitted to the classification workflow used for prioritization and resulted in 153 chemicals tentatively classified as persistent, mobile, and toxic (PMT) and 23 as very persistent and very mobile (vMvP), pinpointing the relevance of these types of chemicals in the aqueous environment. Pharmaceuticals, such as the antidepressant venlafaxine or the antipsychotic sulpiride, and industrial chemicals, especially high production volume chemicals (HPVC) such as ε-caprolactam, were the groups of compounds that were detected at the highest frequencies.This research was funded by Xunta de Galicia (ED431C 2021/06) and the European Regional Development Fund through the Interreg V-A Spain-Portugal Programme (POCTEP) 2014-2020 (ref. 0725_NOR_WATER_1_P). R. M. acknowledges Banco Santander and Universidade de Santiago de Compostela for her outstanding researcher contract and N. A. acknowledges the Portuguese Foundation for Science and Technology (FCT) for his Ph.D. grant DFA/BD/6218/2020.S