bluuebunny/crossref_metadata_2025_split huggingface dataset:
Uso del Teléfono Móvil y Nomofobia: Un Estudio en la Juventud de Oruro
Authors: Alconz Alarcon Grisel Ruth , Crispin Cruz Amilcar Jaime , Cruz Lopez Yhasira Celeste , Garnica Delgado Deysi Gavi , Taquichiri Codori Mariela Isabel 
Published: December 2024

El presente artículo tiene como objetivo determinar si los adolescentes de la ciudad de Oruro tienen nomofobia; realizado en el segundo semestre de 2024, el estudio contó con la participación de 240 estudiantes de nivel secundario (entre 12 a 18 años, edad de la adolescencia en Bolivia) como muestra, los cuales son pertenecientes a los colegios Comibol Oruro 2, La Salle Tarde y Bolivia de Vinto. Para la recopilación de datos se utilizó una encuesta virtual de 42 preguntas direccionadas para determinar la caracterización de los participantes e identificación de síntomas y consecuencias de la nomofobia. Contrario a lo que se pensaba al principio, los resultados arrojaron que solo 3 % de los participantes presentan nomofobia, un 10 % son demasiado propensos a presentarla, un 50% presenta un uso excesivo y constante del teléfono móvil, aunque se justifica que es por razones educativas como la realización de tareas, practicas; o por razones de comunicación y entretenimiento; por otra parte, 37% afirma tener un uso razonable y responsable del teléfono. Este artículo llega a la conclusión que tener un teléfono móvil no es sinónimo de padecer nomofobia, por el contrario, el factor más determinante para desarrollarla es qué significado tiene el móvil en la vida de cada adolescente. Finalmente, se recomienda controlar el tiempo de uso del móvil, además de utilizarlo cuando realmente sea necesario, y por sobretodo no depender por completo de él.
Revistas Científicas Indexadas de Bolivia como un medio de Compartir Conocimientos y de Investigación con el Mundo
Authors: Gutiérrez Rodríguez Wilson Ángel 
Published: December 2024

En Bolivia los investigadores y científicos que se dedican a poder presentar un manuscrito para su edición en una revista científica indexada realizan la actividad como todos en el mundo con el fin de compartir sus conocimientos a la comunidad de investigadores, contribuyen a la ciencia, por un prestigio institucional y personal, al mismo tiempo poder obtener un reconocimiento de la comunidad. En consecuencia, el manuscrito deberá ser de alta calidad y actualización. En Bolivia existen revistas indexadas en una cantidad mínima por lo que se debe motivar, incentivar, organizar y que sirvan a los investigadores en sus diferentes áreas de conocimiento. La realización del presente artículo está sustentada en investigación exploratoria de un orden real y practico que nos induce al análisis para reconocer la importancia de la investigación científica que se genera.
Educational Board Games: “Gues Who?” As An Optimization Of Children's Learning Focus In Learning PPKn In Elementary School
Authors: Zakiyyah Afrahas Sholikhah  , Rosilah Minarsyil  , Lina Ariani  , Deni Zein Tarsidi  
Published: December 2024

The background of this research is the importance of effective learning strategies to increase learners' focus and involvement in learning Civic Education (PPKn) in elementary schools. This study aims to examine the effectiveness of educational games based on board games, namely “Guess Who?”, in optimizing students' attention and participation during learning. The research method used is a qualitative approach with a case study method, and data collection techniques with interviews, observations, and literature studies. The results showed that the use of the “Guess Who?” board game can increase students' concentration, active participation, and understanding of Civics material. In conclusion, “Guess Who?” is an effective and interactive learning media, which can help optimize students' learning focus in learning Civics in elementary schools.
La vulneración del derecho a la igualdad por discriminación laboral de las personas con pasado judicial en un Estado Constitucional de Derechos
Authors: Mármol Palacios Enrique , Villagómez Samanta 
Published: December 2024

La vulneración del derecho a la igualdad por discriminación laboral de las personas con pasado judicial en un Estado Constitucional de Derechos, es un tema importante a tratar por motivo de que dichas personas tienen derechos que ampara la Carta Suprema del Ecuador para ser insertadas de manera apropiada en la sociedad, pero que pese a la existencia de estos derechos como el derecho a la igualdad otorgado a cada ser humano, se interrelaciona con el principio de no discriminación, que sufre la persona con pasado judicial, razón por la cual se dificulta la correcta reinserción en la comunidad, y al no conseguir trabajo, son propensos a que vuelvan a delinquir para poder sobrevivir.
Ante la cruda realidad, de contar con un pasado judicial, no obstante que la constitución, ha superado esta visión discriminatoria.
La poca efectividad del Estado, en el contexto social, económico, conlleva al aumento de la criminalidad a través de los delitos contra las personas, la propiedad, a lo que se suma la criminalidad de la calle, la violencia criminal a todo nivel, el micro y macro tráfico de sustancias prohibidas, que da lugar a la narco- delincuencia y al crimen organizado.
De igual manera, el Estado debe servir de nexo con los PPL persona privada de libertad, para que pueda volver a ser reinsertada en la sociedad, en conjunto con el derecho a que se le reconozca la igualdad laboral, que, por su parte, no se la acoge en ninguna empresa, industria, negocio, por su pasado judicial, no pudiendo lograr el objetivo de romper el ciclo entre la persona puesta en libertad, con la delincuencia por falta de oportunidades.
Emergence of Colistin Resistance in Extended-Spectrum Beta-Lactamase-Producing Escherichia coli Isolates from Dairy Cows in Türkiye
Authors: Günaydin Elçin , Önat Kaan , Kaynar Pınar Mursaloğlu , Goncagül Gülşen 
Published: December 2024

Background: In recent years, the reporting of extended-spectrum beta-lactamase producing and colistin-resistant Escherichia coli (E. coli) in food-producing livestock animals is of great importance as a potential vector of multi-drug resistant (MDR) E. coli for the farm environment, farm workers, and veterinarians who are in close contact with these animals. In this study, it was aimed to determine antibiotic resistance profiles of E. coli from diarrhoeic dairy cows, and observe the resistance against beta-lactam group antibiotics and colistin in 3 years’ time.
Materials and Methods: For the isolation, 1g of sample was suspended into 9 mL of modified Tryptone Soya Broth and incubated overnight at 37 °C. After the incubation, the broth was inoculated on MacConkey Agar and EMB Agar and incubated aerobically at 37 °C for 24h. Identification was done according to biochemical tests. E. coli isolated from the fecal samples of diarrhoeic dairy cows were investigated for the antibiotic resistance with the six different antibiotic classes by Kirby Bauer Disc Diffusion Test.
Results: Fifty-four E. coli isolated from the fecal samples of diarrhoeic dairy cows were investigated for the multi-drug resistance. Fourty-four E. coli showed MDR resistance, including colistin; nine E. coli isolates showed MDR resistance profiles involving at least six to ten antibiotics , but not for colistin. It was discovered that MDR E. coli isolates were also resistant to colistin. Resistance to beta-lactams were observed 100% in 2021 and 2022, but not for 2020. Colistin resistance was found to have increased progressively year over year, reaching 0% in 2000 and 37.03% and 46.29% in the next two years, respectively.
Conclusion: As a conclusion, circulation of beta-lactamase producing E. coli accompanied with colistin resistant E. coli in live-stock animals reared for the purpose of milk production should be concerned as a potential public health problem in terms of one health concept and more detailed investigations should be planned to question the ground origins of gradual increase.
Exclusive Breast Feeding Practices, Knowledge and Challenges amongst Mothers with Children 0-6 Months in the Bamenda II Municipality of the Northwest Region of Cameroon
Authors: Mambo Akumah Bih , Garba Mary Chia , Landis Fongang C. 
Published: December 2024

The prevalence of exclusive breastfeeding (EBF) for the first six months of life remains low globally and in Cameroon, despite strong evidence supporting its benefits. This study aimed to assess the practice, knowledge, and challenges of exclusive breast feeding among mothers in the Bamenda II municipality of the Northwest Region of Cameroon. A cross-sectional study design was employed, involving 100 participants. Data were collected using a structured questionnaire covering sociodemographic characteristics, knowledge of exclusive breast feeding, level of practice, and potential barriers to its uptake. Results were analyzed using descriptive statistics and bivariate logistic regression, with significance set at p<0.05 at a 95% confidence level. Results showed that, 43% of participants practiced exclusive breast feeding for up to 6 months of life. 95% had heard about exclusive breast feeding, about 97% knew the effects of not Exclusively breast feeding. 83% had a good knowledge on exclusive breast feeding. Results also showed that single or divorced participants were 4times more likely (95% Cl =1.3-12.5: P = 0.02) to breastfeed exclusively than married participants. Participants who were multipara, were 0.1time less likely (95%Cl = 0.1-0.95: P = 0.045) to breastfeed compared to those who were Primipara. Participants who faced difficulties were 0.4times less likely (95%Cl = 0.2-0.96: P = 0.04) to practice exclusive breast feeding compared to those that faced no difficulties. Those who had a good knowledge on exclusive breast feeding were 1.1 times (95%Cl=0.4 – 3.2; P=0.86) more likely to practice EBF, but it was not significant. Also participants who lived in rural areas were 3.1 times (95% Cl=1.6– 3.7; P=0.002) more likely to practice exclusive breast feeding compared to those that were from urban settings. Despite high levels of awareness and knowledge of exclusive breast feeding among participants, its practice was suboptimal, with only 43% adherence—well below WHO standards. To address this, facilities, programs, and reminder systems should be implemented to monitor and encourage exclusive breast feeding. Additionally, regular campaigns and educational programs should be organized to promote and sustain the practice.
Ruthenium‐Catalyzed Highly Regioselective Azide‐Internal Thiocyanatoalkyne Cycloaddition under Mild Conditions: Experimental and Theoretical Studies
Authors: Song Wangze , Li Ming , Dong Kun , Zheng Yubin 
Published: September 2019

AbstractFully substituted heterofunctionalized triazoles can be prepared by indirect and direct approaches. The indirect strategies are well‐established but have limitations. Herein, we developed a direct methodology to access fully substituted 5‐thiocyanato‐1,2,3‐triazoles with high regioselectivity from the azide‐internal thiocyanatoalkyne cycloaddition reaction under mild conditions. This is the first time that fully substituted 5‐thiocyanato‐1,2,3‐triazoles have been prepared and the first time an AAC/nucleophilic substitution cascade reaction have been used to generate various fully substituted triazolyl−organosulfurs, such as 5‐sulfur‐triazoles and 5‐sulfinylcyanato‐triazoles from common internal thiocyanatoalkyne precursors. This approach features a broad substrate scope (34 examples), good compatibility with water and air, high yields (up to 85%) and excellent regioselectivity (more than 20:1).magnified image
A Molecular Approach for Mitigation of Aluminum Pitting based on Films of Zinc(II) and Gallium(III) Metallosurfactants
Authors: Weeraratne A. D. K. Isuri , Hewa‐Rahinduwage Chathuranga C. , Gonawala Sunalee , Luo Long , Verani Cláudio N. 
Published: September 2019

AbstractThe use of metallosurfactants to prevent pitting corrosion of aluminum surfaces is discussed based on the behavior of the metallosurfactants [ZnII(LN2O2)H2O] (1) and [GaIII(LN2O3)] (2). These species were deposited as multilayer Langmuir–Blodgett films and characterized by IR reflection absorption spectroscopy and UV/Vis spectroscopy. Scanning electron microscopy images, potentiodynamic polarization experiments, and electrochemical impedance spectroscopy were used to assess corrosion mitigation. Both metallosurfactants demonstrate superior anticorrosion activity due to the presence of redox‐inactive 3d10 metal ions that enhance the structural resistance of the ordered molecular films and limit chloride mobility and electron transfer.
Design, development, and scientific performance of the Raman Laser Spectrometer EQM on the 2020 ExoMars (ESA) Mission
Authors: Moral Andoni G. , Rull Fernando , Maurice Sylvestre , Hutchinson Ian B. , Canora Carlos P. , Seoane Laura , López‐Reyes Guillermo , Rodriguez Prieto Jose A. , Rodríguez Pablo , Ramos Gonzalo , Parot Yann , Forni Olivier 
Published: September 2019

AbstractThe Raman Laser Spectrometer (RLS) is one of the three Pasteur Payload instruments located within the rover analytical laboratory drawer (ALD), for ESA's Aurora exploration programme, ExoMars 2020 mission. The instrument will analyse the crushed surface and subsurface samples that are positioned below the Raman optical head by the ALD carousel.The RLS engineering and qualification model (EQM) was delivered to ESA at the end of 2017, after a wide technical and scientific test characterization campaign. The scientific campaign comprised instrument calibration and detailed evaluation of the scientific requirements and overall performance. For spectral calibration, continuous emission standard lamps (such as Hg‐Ar, Ne, and Xe) were utilized, as well as Raman spectra of pure liquids typically used as standards (cyclohexane and carbon tetrachloride (CCl4)). In addition, Raman spectra of the RLS calibration target (CT), a small disc of polyethylene terephthalate (PET) were obtained at various temperatures. This target, placed inside the rover, will be used for both Instrument health checks and calibration activities throughout Mars operations. For the scientific requirements and performance evaluations, several liquid and solid samples were analysed under a wide range of ambient conditions. The obtained spectral band parameters (peak position, relative peak intensity, peak width, and peak profile) were evaluated. Also, the instrument response (in terms of SNR) was characterized at different integration times and detector operating temperatures. In this paper, we provide a description of the development, verification, functional test, and overall scientific performance of the RLS instrument developed for ExoMars. Particular attention is placed on the performance of the EQM, which is the most representative instrument, in terms of engineering and functionality, of the flight model (FM) and in addition is used for performing all the mechanical, thermal, and radiation tests necessary for space qualification (for planetary applications). The data presented and analysed here, comprise part of the overall dataset obtained during the full instrument characterization campaign conducted at INTA before and during delivery and integration of the EQM in the rover ALD at TAS‐I facilities (Torino, Italy). The results obtained confirm that the full functionality and scientific performance of the RLS instrument was maintained after integration.
Learning and Adaptation to Detect Changes and Anomalies in High-Dimensional Data
Authors: Carrera Diego 
Published: September 2019

AbstractThe problem of monitoring a datastream and detecting whether the data generating process changes from normal to novel and possibly anomalous conditions has relevant applications in many real scenarios, such as health monitoring and quality inspection of industrial processes. A general approach often adopted in the literature is to learn a model to describe normal data and detect as anomalous those data that do not conform to the learned model. However, several challenges have to be addressed to make this approach effective in real world scenarios, where acquired data are often characterized by high dimension and feature complex structures (such as signals and images). We address this problem from two perspectives corresponding to different modeling assumptions on the data-generating process. At first, we model data as realization of random vectors, as it is customary in the statistical literature. In this settings we focus on the change detection problem, where the goal is to detect whether the datastream permanently departs from normal conditions. We theoretically prove the intrinsic difficulty of this problem when the data dimension increases and propose a novel non-parametric and multivariate change-detection algorithm. In the second part, we focus on data having complex structure and we adopt dictionaries yielding sparse representations to model normal data. We propose novel algorithms to detect anomalies in such datastreams and to adapt the learned model when the process generating normal data changes.
Enhancing Video Recommendation Using Multimedia Content
Authors: Deldjoo Yashar 
Published: September 2019

AbstractVideo recordings are complex media types. When we watch a movie, we can effortlessly register a lot of details conveyed to us (by the author) through different multimedia channels, in particular, the audio and visual modalities. To date, majority of movie recommender systems use collaborative filtering (CF) models or content-based filtering (CBF) relying on metadata (e.g., editorial such as genre or wisdom of the crowd such as user-generated tags) at their core since they are human-generated and are assumed to cover the ‘content semantics’ of movies by a great degree. The information obtained from multimedia content and learning from muli-modal sources (e.g., audio, visual and metadata) on the other hand, offers the possibility of uncovering relationships between modalities and obtaining an in-depth understanding of natural phenomena occurring in a video. These discerning characteristics of heterogeneous feature sets meet users’ differing information needs. In the context of this Ph.D. thesis [9], which is briefly summarized in the current extended abstract, approaches to automated extraction of multimedia information from videos and their integration with video recommender systems have been elaborated, implemented, and analyzed. Variety of tasks related to movie recommendation using multimedia content have been studied. The results of this thesis can motivate the fact that recommender system research can benefit from knowledge in multimedia signal processing and machine learning established over the last decades for solving various recommendation tasks.
Dynamic Application Autotuning for Self-aware Approximate Computing
Authors: Gadioli Davide 
Published: September 2019

AbstractThe energy consumption limits the application performance in a wide range of scenarios, ranging from embedded to High-Performance Computing. To improve computation efficiency, this Chapter focuses on a software-level methodology to enhance a target application with an adaptive layer that provides self-optimization capabilities. We evaluated the benefits of dynamic autotuning in three case studies: a probabilistic time-dependent routing application from a navigation system, a molecular docking application to perform virtual-screening, and a stereo-matching application to compute the depth of a three-dimensional scene. Experimental results show how it is possible to improve computation efficiency by adapting reactively and proactively.
Elevated temperature and decreased salinity both affect the biochemical composition of the Antarctic sea-ice diatom Nitzschia lecointei, but not increased pCO2
Authors: Torstensson Anders , Jiménez Carlos , Nilsson Anders K. , Wulff Angela 
Published: September 2019

AbstractAreas in western Antarctica are experiencing rapid climate change, where ocean warming results in more sea ice melt simultaneously as oceanic CO2levels are increasing. In this study, we have tested how increased temperature (from −1.8 to 3 °C) and decreased salinity (from 35 to 20 and 10) synergistically affect the growth, photophysiology and biochemical composition of the Antarctic sea-ice diatomNitzschia lecointei. In a separate experiment, we also addressed how ocean acidification (from 400 to 1000 µatm partial pressure of CO2) affects these key physiological parameters. Both positive and negative changes in specific growth rate, particulate organic carbon to particulate organic nitrogen ratio, chlafluorescence kinetics, lipid peroxidation, carbohydrate content, protein content, fatty acid content and composition were observed when cells were exposed to warming and desalination. However, when cells were subjected to increased pCO2, onlyFv/Fm, non-photochemical quenching and lipid peroxidation increased (by 3, 16 and 14%, respectively), and no other of the abovementioned biochemical properties were affected. These results suggest that changes in temperature and salinity may have more effects on the biochemical composition ofN. lecointeithan ocean acidification. Sea-ice algae are important component of polar food webs, and their nutritional quality may be affected as a result of altered environmental conditions due to climate change and sea ice melt.
Richard Dean: The Value of Humanity in Kant’s Moral Theory
Authors: Wolemonwu Victor Chidi 
Published: September 2019

Abstract
This is critical review of Richard Dean’ book, The Value of Humanity in Kant’s Moral Theory. Dean’s book was evaluated, and some of his interpretations of Kant were critiqued. However, it concludes that Dean’s book is illuminating especially, as regards the distinction he made between consent and informed consent and their roles in biomedical practice.
A Low-Cost, Non-hazardous Protocol for Surface Texturing of Glass Particles
Authors: Ibekwe Anelechi , Tanino Yukie , Pokrajac Dubravka 
Published: September 2019

AbstractWe present a cheap, efficient, and non-hazardous protocol for altering the roughness of hard particles at the nanometer-scale using a stone tumbler, a tool which is normally used for polishing stones. Six different textures were achieved by lining the tumbler with sandpaper of mean grit diameters$$d_{\mathrm{g}}=201$$dg=201, 58.5, 18.3, 12.6, and$$8.4\,\upmu \hbox {m}$$8.4μm. Two textures were created by tumbling a batch of glass spheres for 4 h and for 12 h with the$$12.6\,\upmu \hbox {m}$$12.6μmsandpaper; all other textures were established by tumbling for 12 h. Surface roughness was characterized by the integral length scale,$$\xi$$ξ, evaluated from 7 nm/pix resolution scanning electron microscope images. Roughness size increased from$$\xi = 24$$ξ=24to 31 nm as the grit size decreased from$$d_{\mathrm{g}} = 201$$dg=201to$$18.3\,\upmu \hbox {m}$$18.3μm, and then decreased to$$\xi = 6.4\,\hbox {nm}$$ξ=6.4nmat the smallest$$d_{\mathrm{g}}$$dg. The largest$$\xi \,(= 34\,\hbox {nm})$$ξ(=34nm)was achieved using a$$12.6\,\upmu \hbox {m}$$12.6μmsandpaper and the shorter tumbling time of 4 h. The permeability of a packed column of the particles broadly decreased with increasing$$\xi$$ξ, indicating that permeability decreases with increasing roughness size.