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Predictive roles of organizational and personal factors in work engagement among nurses

Frontiers of Nursing 2022年第4期9卷 379-387页

作者： Charlie C.Falguera Leodoro J.Labrague janet alexis a.de los santos Carmen N.Firmo Konstantinos Tsaras School of Health Sciences University of the Philippines ManilaLeyteManila 2801Philippines School of Nursing Loyola University ChicagoIllinois 60660United States College of Nursing Visayas State UniversityBaybayLeyte 6521APhilippines department of Nursing Technological Educational Institute of ThessalyKarditsaThessaly 43100Greece

Objective:To determine the work engagement levels of hospital nurses and the predictive roles that nurses’personal and organizational characteristics ***:A cross-sectional design was employed in this study,which included 549 nurses working in the Central *** were selected through purposive sampling,and a self-repor t questionnaire outlining personal and organizational characteristics was *** Utrecht Work Engagement Scale(UWES)was applied to gather data about nurse ***:The dedication score was the highest among the three dimensions of engagement while the vigor score was the ***,Filipino nurses experienced an average level of work *** observed significant relationships between a nurse’s age,years of experience in nursing,years in their present unit,and their position at work and their levels of engagement,vigor,sense of dedication,and *** capacity was a negative predictor of vigor,dedication,absorption,and overall work *** ther,the type of nursing contract was a negative predictor of vigor and *** type of hospital and the nurse’s position were positive predictors of vigor,dedication,and ***:Filipino nurses were satisfactorily engaged at work.A number of nurses’personal and organizational characteristics play a predictive role in their work ***,nursing administrators must suppor t,develop,and implement activities and measures that engage nurses at work.

关键词： Filipino nurses nurse personal factors organizational factors work engagement work engagement predictors

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Heavy Metals in Agricultural Soils of Constanza, Jarabacoa, San José de Ocoa, Azua, Barahona and San Juan de la Maguana, Dominican Republic, 2022

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Journal of Geoscience and Environment Protection 2024年第1期12卷 64-79页

作者： Ramón delanoy Carime Matos-Espinosa Yamilesa Herrera.de los santos Institute of Physics Autonomous University of Santo Domingo Santo Domingo Dominican Republic Ministry of Higher Education Science and Technology Santo Domingo Dominican Republic

The objective of this study was to establish a baseline for future studies that aim to determine possible contamination from human, agricultural and industrial activities. As well as the determination of the indices of environmental or geological contamination and enrichment factors of heavy metals Cr, Ni, Cu, Zn, As, Cd, Hg and Pb in agricultural soils of Constanza, Jarabacoa, Rancho Arriba and San José de Ocoa (SJO), municipalities located in the valleys of the Central mountain range of the Dominican Republic. The determination of the concentrations of heavy metals was carried out using the X-ray Fluorescence technique. Just like in Azua, San Juan de la Maguana (SJM) y Barahona in the southwest. Producer municipalities of vegetables, rice, beans, corn, melon, watermelon, tomato, banana, avocado, sugar cane and fodder for cattle. The concentration of 160 mg·kg-1 Probable Effect Level (PEL) of Cr according to the SQuiRTs table (USEPA-NOAA) for agricultural soils, were exceeded in 50% of the samples in SJM, SJO, Jarabacoa and Constanza;in Barahona and Azua by 20%. The PEL of 42.8 mg·kg-1 of the Ni was higher in more than 50% of the samples from SJM, Azua, Barahona and Jarabacoa;in SJO and Constanza at 35%. In the case of Cu with a PEL of 108 mg·kg-1 in SJO and Constanza, 5% of the samples exceeded its, in the other areas the concentrations were lower. Zn, As and Pb did not manage to exceed their respective PEL.

关键词： Soil Heavy Metals Constanza Azua X-Ray Fluorescence

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development and psychometric evaluation of the nurse behavior toward confirmed and suspected HIV/AIDS patients (NB-CSHAP) scale

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Frontiers of Nursing 2022年第1期9卷 103-113页

作者： janet alexis de los santos Norberto Milla Cyruz Tuppal Leodoro Labrague department of Nursing Visayas State UniversityViscaLeyte 6521Philippines Graduate School St Paul University PhilippinesTuguegaraoCagayan Valley 3500Philippines department of Statistics Visayas State UniversityViscaLeyte 6521Philippines College of Health Allied and Medical Professions University of San AgustinTuguegaraoIloiloVisayas 5000Philippines Fundamentals and Administration department Sultan Qaboos UniversityMuscatMuscat 112Oman

There is a scarcity of literature discussing nurses’ behaviors toward caring for suspected or confirmed human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) patients. The development of a scale specific to measure nurses’ behaviors will allow health institutions to assess the disposition of their nurses in terms of HIV care. This study aims to present the rigors of developing and validating a reliable instrument to contextualize these nurses’ behaviors. This study utilized a sequential exploratory mixed method design to develop the NB-CSHAP scale. Thematic analysis was done on the qualitative data from the interviews with persons living with HIV/AIDS (PLHA) from which items were selected to be included in the scale. Exploratory factor analysis was utilized to extract the factors and Cronbach’s alpha was used to assess the reliability of the instrument. Four factors were extracted and are categorized as either caring or discriminatory behaviors. These include: (1) service-oriented, (2) openha.ded, (3) perceptive, and (4) discriminatory. The scale has an internal consistency of 0.73. The scale shows acceptable psychometric properties, hence can be used to assess the nurses’ behaviors in caring for confirmed or suspected HIV clients. The scale may be used by health institutions to determine the quality of the patient care provided by their nurses to clients with confirmed or suspected HIV .

关键词： caring behaviors HIV/AIDS care nursing scale development sequential exploratory mixed method design

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Generalized Height-Diameter Models for Pinus montezumae Lamb. and Pinus pseudostrobus Lindl. Plantations in Michoacan, Mexico

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Open Journal of Forestry 2024年第3期14卷 214-232页

作者： Jonathan Hernández-Ramos Valentín José Reyes-Hernández Héctor Manuel de los santos-Posadas Aurelio Manuel Fierros-González Enrique Buendía-Rodríguez Gerónimo Quiñonez-Barraza Instituto Nacional de Investigaciones Forestales Agrcolas y Pecuarias (INIFAP)-Campo Experimental Bajo Celaya Guanajuato Mxico Colegio de Postgraduados (COLPOS) Campus Montecillo Mxico INIFAP Campo Experimental Valle de Mxico Texcoco Mxico INIFAP Campo Experimental Valle del Guardiana Durango Mxico

Tree height (H) in a natural stand or forest plantation is a fundamental variable in management, and the use of mathematical expressions that estimate H as a function of diameter at breast height (d) or variables at the stand level is a valuable support tool in forest inventories. The objective was to fit and propose a generalized H-d model for Pinus montezumae and Pinus pseudostrobus established in forest plantations of Nuevo San Juan Parangaricutiro, Michoacan, Mexico. Using nonlinear least squares (NLS), 10 generalized H-d models were fitted to 883 and 1226 pairs of H-d data from Pinus montezumae and Pinus pseudostrobus, respectively. The best model was refitted with the maximum likelihood mixed effects model (MEM) approach by including the site as a classification variable and a known variance structure. The Wang and Tang equation was selected as the best model with NLS;the MEM with an additive effect on two of its parameters and an exponential variance function improved the fit statistics for Pinus montezumae and Pinus pseudostrobus, respectively. The model validation showed equality of means among the estimates for both species and an independent subsample. The calibration of the MEM at the plot level was efficient and might increase the applicability of these results. The inclusion of dominant height in the MEM approach helped to reduce bias in the estimates and also to better explain the variability among plots.

关键词： Random Covariate Random Effects Variance Structure Forest Inventories Forest Management Mixed Models

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Probing intensity-field correlations of single-molecule surface-enhanced Raman-scattered light

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Frontiers of physics 2019年第6期14卷 15-26页

作者： O.de los santos-Sanchez Instituto de Ciencias Físicas Universidad Nacional Autónoma de MéxicoApdo.Postal 48-3CuernavacaMorelos 62251México

In the context of the quantum-mechanical description of single-molecule surface-enhanced Raman scattering,intensity-field correlation measurements of photons emitted from a plasmonic cavity are explored,theoretically,using the technique of conditional homodyne *** inelastic interplay between plasmons and vibrations of a diatomic molecule placed inside the cavity can be manifested in phase-dependent third-order fluctuations of the light recorded by the aforesaid technique,allowing us to reveal signatures of non-classicality(indicatives of squeezing)of the outgoing Raman photons.

关键词： Raman scattering SERS phase-dependent fluctuations squeezing plasmonics

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Real drive cycles analysis by ordered power methodology applied to fuel consumption,C0_(2),NO_(x) and PM emissions estimation

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Frontiers of Environmental Science & Engineering 2021年第1期15卷 77-90页

作者： Pol Masclans Abello Vicente Medina Iglesias M.Antonia.de los santos Lopez Jesus Alvarez-Florez Center for Engines and Heat Installation Research(CREMIT-UPC).Universitat Politecnica.de Catalunya-BarcelonaTech.Av.Diagonal 547(ETSEIB)08028 Barcelona Spain department of Thermal Machinery of Universitat Politecnica.de Catalunya-BarcelonaTech and CREMIT-UPC.-BarcelonaTech.Av.Diagonal 547(ETSEIB)08028 Barcelona Spain 3 department of Mechanical Engineering of Universitat Politecnica.de Catalunya-BarcelonaTech and CREMIT-UPC.-BarcelonaTech.Av.Diagonal 547(ETSEIB)08028 Barcelona Spain

In this work three fuel consumption and exhaust emission models,ADVISOR,VT-MICRO and the European Environmental Agency Emission factors,have been used to obtain fuel consumption(FC)and exhaust *** models have been used at micro-scale,using the two signal treatment methods *** manuscript presents:1)a methodology to collect data in real urban driving cycles,2)an estimation of FC and tailpipe emissions using some available models in literature,and 3)a novel analysis of the results based on delivered wheel *** results include Fuel Consumption(FC),CO_(2),NO_(x) and PM_(10) emissions,which are derived from the three *** the first part of the paper we present a new procedure for incomplete drive cycle data treatment,which is necessary for real drive cycle acquisition in high density *** the models are used to obtain second by second FC and exhaust ***,a new methodology named Cycle Analysis by Ordered Power(CAbOP)is presented and used to compare the *** method consists in the re-ordering of time dependant data,considering the wheel mechanical power domain instead of the standard time *** new strategy allows the 5 situations in drive cycles to be clearly visualized:hard breaking zone,slowdowns,idle or stop zone,sustained speed zone and acceleration *** complete methodology is applied in two real drive cycles surveyed in Barcelona(Spain)and the results are compared with a standardized WLTC urban cycle.

关键词： Cycle Analysis by Ordered Power(CAbOP) Micro and macro models Real drive cycle NO_(x)/PM_(10)/CO_(2)emissions Wheel mechanical power domain Worldwide Harmonized Light-Duty Vehicles Test Cycle(WLTC)

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demographic and behavioral responses of the White-winged Dove to human disturbances during winter in northwestern Mexico

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Avian Research 2022年第4期13卷 437-444页

作者： Ruben Ortega-Alvarez Jovani Le on-Aguilar Antonio Isain Contreras-Rodríguez Gustavo Casta neda.de los santos Instituto de Investigaciones en Ecosistemas y Sustentabilidad(IIES)-Universidad Nacional Autonoma.de Mexico Campus MoreliaAntigua Carretera a Patzcuaro 8711Col.San Jose de la HuertaMoreliaMichoacan58190Mexico Programa.de Aves Urbanas(PAU) Los MochisSinaloaMexico Quirino Mendoza#320 Colonia del CarmenXochimilcoCiudad de Mexico16720Mexico departamento de Educacion Ambiental Jardín Bot anico Benjamin Francis JohnstonSinaloaMexico

The simultaneous study of demography and behavior might provide a more comprehensive understanding about animal responses to anthropogenic *** White-winged Dove(Zenaida asiatica)is a frequent dweller of urban and agricultural habitats in North America,Central America,and the ***,research on the species is heavily biased to the *** analyzed the response of the species to human disturbances during winter across an urban-agricultural landscape in northwestern Mexico through a.demographic and behavioral *** modeled the effect of disturbance types(pedestrians,cars,pavement and building cover)on the density of the ***,we investigated if surveillance behavior varied across the landscape by estimating and comparing perching proportion among land uses(urban grey areas,urban green areas,cropfields,shrublands).We did not detect the species within cropfields,possibly because food resources were not available for the dove during winter in this land *** cover limited species’density,as it might reduce the surface of the preferred feeding substrates of the *** and building cover increased the density of the species,as they might provide food and shelter for the dove,*** behavior peaked in urban grey areas,whereas it dropped in urban green *** on threat levels,threat type,and protective cover among land uses might in-fluence such behavioral *** approach contributes to the knowledge of the species and demonstrates that both demographic and behavioral cues provide complementary evidence for analyzing the impact of human disturbances on animals.

关键词： Agriculture density Perch Sinaloa Urbanization Zenaida asiatica

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The role of exosomal long non-coding RNAs in cancer drug resistance

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Cancer Drug Resistance 2019年第4期2卷 1178-1192页

作者： Mireia Cruz de los santos Mihnea P.Dragomir George A.Calin department of Experimental Therapeutics The University of Texas MD Anderson Cancer CenterHoustonTX 77054USA Research Center for Functional Genomics Biomedicine and Translational MedicineIuliu Hatieganu University of Medicine and PharmacyCluj-Napoca 40015Romania department of Surgery Fundeni Clinical HospitalCarol Davila University of Medicine and PharmacyBucharest 022328Romania Center for RNA Interference and Non-coding RNAs The University of Texas MD Anderson Cancer CenterHoustonTX 77054USA

One of the major challenges in oncology is drug resistance,which triggers relapse and shortens patients’*** order to promote drug desensitization,cancer cells require the establishment of an ideal tumor microenvironment that accomplishes specific *** achieve this objective,cellular communication is a key ***,cells were believed to restrictively communicate by ligand-receptor binding,physical cell-to-cell interactions and ***,the crosstalk between tumor cells and stroma cells has also been recently reported to be mediated through exosomes,the smallest extracellular vesicles,which transport a plethora of functionally active molecules,such as:proteins,lipids,messenger RNA,DNA,microRNA or long non-coding RNA(lncRNAs).LncRNAs are RNA molecules greater than 200 base pairs that are deregulated in cancer and other *** lncRNAs are highly stable and can be found in several body fluids,being considered potential biomarkers for tumor liquid *** lncRNAs promote angiogenesis,cell proliferation and drug *** role of exosomal lncRNAs in drug resistance affects the main treatment strategies in oncology:chemotherapy,targeted therapy,hormone therapy and ***,knowing the molecular mechanisms by which exosomal lncRNA induce pharmacologic resistance could improve further drug development and identify drug resistance biomarkers.

关键词： Tumor microenvironment extracellular vesicles exosomes non-coding RNA long non-coding RNA drug resistance

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Bacterial and archaeal communities in saline soils from a los Negritos geothermal area in Mexico

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Pedosphere 2023年第2期33卷 312-320页

作者： Joseph GUEVARA-LUNA Mario HERNÁNdeZ-GUZMÁN Nina MONTOYA-CIRIACO Luc deNDOOVEN Marina Olivia FRANCO-HERNÁNdeZ Paulina ESTRADa.de los santos María Soledad VÁSQUEZ-MURRIETA Escuela Nacional de Ciencias Biológicas Instituto Politécnico NacionalCiudad de México 11340(Mexico) Laboratory of Soil Ecology CinvestavMexico City 07360(Mexico) Centro Tlaxcala.de Biología.de la Conducta Universidad Autónoma de Tlaxcala.Carretera Federal Tlaxcala-Puebla km.1.5Tlaxcala 90070(Mexico) Unidad Profesional Interdisciplinaria.de Biotecnología Instituto Politécnico NacionalCiudad de México 07340(Mexico)

In recent years,there has been a growing need to understand how salinity affects microbial communities in agricultural *** and bacterial community diversities and structures were investigated by high-throughput sequencing analysis of their 16S rRNA in two arable soils with low electrical conductivity(EC)(2.3 and 2.6 dS m^(-1))and a saline soil(EC=17.6 dS m^(-1)).The dominant bacterial phyla in the soils were Proteobacteria(relative abundance(RA)=46.2%),followed by Acidobacteria(RA=13.1%)and Actinobacteria(RA=10.0%),whereas Serratia(RA=6.0%)and Bacillus(RA=4.0%)were the dominant bacterial *** Nitrososphaera(53.5%)was the dominant archaeal phylotype in the arable soils,whereas Nitrosopumilus(RA=0.4%)dominated in the saline *** archaeal and bacterial community structures were different between the soils and significantly correlated with soil sand,arsenic,barium,and antimony contents,but not with soil salinity.

关键词： agricultural soil compositional approach microbial community mud volcano soil salinity soluble anion

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Plant Growth-Promoting Traits in Rhizobacteria of Heavy Metal-Resistant Plants and Their Effects on Brassica nigra Seed Germination

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Pedosphere 2017年第3期27卷 511-526页

作者： Brenda ROMN-PONCE Diana Miryel REZA-VZQUEZ Sonia GUTIRREZ-PAREdeS María.de Jesús de HARO-CRUZ Jessica MALDONADO-HERNNdeZ Yanely BAHENA-OSORIO Paulina ESTRADa.de los santos En Tao WANG María Soledad VSQUEZ-MURRIETA Instituto Politécnico Nacional Escuela Nacional de Ciencias Biológicas Prolongación Carpio y Plan de Ayala s/n Col.Santo Tomás Del.Miguel Hidalgo Ciudad de México

Phytoremediation is an emerging technology that uses plants and their associated microbes to clean up pollutants from the soil, water, and air. In order to select the plant growth-promoting rhizobacteria （PGPR） for phytoremediation of heavy metal contamination, 60 bacterial strains were isolated from the rhizosphere of two endemic plants, Prosopis laevigata and Spharealcea angustifolia, in a heavy metal-contaminated zone in Mexico. These rhizobacterial strains were characterized for the growth at different pH and salinity, extracellular enzyme production, solubilization of phosphate, heavy metal resistance, and plant growth-promoting （PGP） traits, including production of siderophores and indol-3-acetic acid （IAA）. Overall, the obtained rhizobacteria presented multiple PGP traits. These rhizoba^teria were also resistant to high levels of heavy metals （including As as a metalloid）（up to 480 mmol L-1 As（V）, 24 mmol L-1 Pb（II）, 21 mmol L-1 Cu（II）, and 4.5 mmol L-1 Zn（II））. Seven rhizobacterial strains with the best PGP traits were identified as members of Alcaligenes, Bacillus, Curtobacterium, and Microbacterium, and were selected for further bioassay. The inoculation of Brassica nigra seeds with Microbacteriurn sp. CE3R2, Microbacterium sp. NE1R5, Curtobacterium sp. NM1R1, and Microbacterium sp. NM3E9 facilitated the root development; they significantly improved the B. nigra seed germination and root growth in the presence of heavy metals such as 2.2 mmol L-1 Zn（II）. The rhizobacterial strains isolated in the present study had the potential to be used as efficient bioinoculants in phytorremediation of soils contaminated with multiple heavy metals.

关键词： bioinoculants endemic plants mine railings pH phytoremediation salinity

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