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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
Showing 1 - 200 of 265 Journals sorted alphabetically
Accountability in Research: Policies and Quality Assurance     Hybrid Journal   (Followers: 19)
Acta Nova     Open Access   (Followers: 2)
Acta Scientifica Malaysia     Open Access   (Followers: 1)
Acta Scientifica Naturalis     Open Access   (Followers: 4)
Adıyaman University Journal of Science     Open Access  
Advanced Science     Open Access   (Followers: 16)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 8)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 4)
Advances in Research     Open Access  
Advances in Science and Technology     Full-text available via subscription   (Followers: 18)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 8)
Afrique Science : Revue Internationale des Sciences et Technologie     Open Access   (Followers: 1)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 3)
Alfarama Journal of Basic & Applied Sciences     Open Access   (Followers: 12)
American Academic & Scholarly Research Journal     Open Access   (Followers: 4)
American Journal of Applied Sciences     Open Access   (Followers: 22)
American Journal of Humanities and Social Sciences     Open Access   (Followers: 14)
Anales del Instituto de la Patagonia     Open Access  
Applied Mathematics and Nonlinear Sciences     Open Access   (Followers: 2)
Arab Journal of Basic and Applied Sciences     Open Access  
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 1)
Archives Internationales d'Histoire des Sciences     Partially Free   (Followers: 5)
Archives of Current Research International     Open Access  
ARPHA Conference Abstracts     Open Access   (Followers: 1)
ARPHA Proceedings     Open Access  
Asian Journal of Advanced Research and Reports     Open Access  
Asian Journal of Scientific Research     Open Access   (Followers: 2)
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 5)
Australian Field Ornithology     Full-text available via subscription   (Followers: 1)
Australian Journal of Social Issues     Hybrid Journal   (Followers: 6)
Bangladesh Journal of Scientific Research     Open Access  
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 1)
Berichte Zur Wissenschaftsgeschichte     Hybrid Journal   (Followers: 11)
Bilge International Journal of Science and Technology Research     Open Access  
Bioethics Research Notes     Full-text available via subscription   (Followers: 15)
BJHS Themes     Open Access   (Followers: 5)
Bulletin de la Société Royale des Sciences de Liège     Open Access  
Bulletin of the National Research Centre     Open Access  
Chain Reaction     Full-text available via subscription  
Ciencia Amazónica (Iquitos)     Open Access  
Ciencia en su PC     Open Access   (Followers: 1)
Ciencia Ergo Sum     Open Access  
Ciência ET Praxis     Open Access  
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering     Open Access  
Comunicata Scientiae     Open Access  
Conference Papers in Science     Open Access  
Configurations     Full-text available via subscription   (Followers: 11)
COSMOS     Hybrid Journal   (Followers: 1)
Crea Ciencia Revista Científica     Open Access  
Current Issues in Criminal Justice     Hybrid Journal   (Followers: 14)
Current Research in Geoscience     Open Access   (Followers: 6)
Data     Open Access   (Followers: 4)
Dhaka University Journal of Science     Open Access  
Discover Sustainability     Open Access   (Followers: 4)
Einstein (São Paulo)     Open Access  
Ekaia : EHUko Zientzia eta Teknologia aldizkaria     Open Access  
Emergent Scientist     Open Access  
Enhancing Learning in the Social Sciences     Open Access   (Followers: 8)
Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas     Open Access  
Entramado     Open Access  
Entre Ciencia e Ingeniería     Open Access  
Epiphany     Open Access   (Followers: 1)
Ethiopian Journal of Education and Sciences     Open Access   (Followers: 5)
European Online Journal of Natural and Social Sciences     Open Access   (Followers: 4)
European Scientific Journal     Open Access   (Followers: 11)
Evidência - Ciência e Biotecnologia - Interdisciplinar     Open Access  
Exchanges : the Warwick Research Journal     Open Access   (Followers: 1)
Experimental Results     Open Access   (Followers: 2)
Fides et Ratio : Revista de Difusión Cultural y Científica     Open Access  
Fontanus     Open Access   (Followers: 1)
Forensic Science Policy & Management: An International Journal     Hybrid Journal   (Followers: 286)
Frontiers in Climate     Open Access   (Followers: 5)
Frontiers in Science     Open Access   (Followers: 1)
Fundamental Research     Open Access  
Futures & Foresight Science     Hybrid Journal   (Followers: 1)
Gaudium Sciendi     Open Access  
Ghana Studies     Full-text available via subscription   (Followers: 15)
Global Journal of Pure and Applied Sciences     Full-text available via subscription  
Globe, The     Full-text available via subscription   (Followers: 4)
HardwareX     Open Access  
Heidelberger Jahrbücher Online     Open Access  
Heliyon     Open Access   (Followers: 1)
History of Science and Technology     Open Access   (Followers: 5)
Hoosier Science Teacher     Open Access  
Indian Journal of History of Science     Hybrid Journal   (Followers: 2)
Instruments     Open Access  
Interciencia     Open Access  
International Annals of Science     Open Access  
International Journal of Advanced Multidisciplinary Research and Review     Open Access  
International Journal of Applied Science     Open Access  
International Journal of Engineering, Science and Technology     Open Access  
International Journal of Network Science     Hybrid Journal   (Followers: 3)
International Journal of Social Sciences and Management     Open Access   (Followers: 3)
International Journal of Technology Policy and Law     Hybrid Journal   (Followers: 10)
International Science and Technology Journal of Namibia     Open Access   (Followers: 2)
International Scientific and Vocational Studies Journal     Open Access  
Investiga : TEC     Open Access  
Investigación Joven     Open Access  
Investigacion y Ciencia     Open Access   (Followers: 1)
Iranian Journal of Science and Technology, Transactions A : Science     Hybrid Journal  
iScience     Open Access   (Followers: 2)
Issues in Science & Technology     Free   (Followers: 9)
Ithaca : Viaggio nella Scienza     Open Access  
J : Multidisciplinary Scientific Journal     Open Access  
Jaunujų mokslininkų darbai     Open Access   (Followers: 3)
Journal de la Recherche Scientifique de l'Universite de Lome     Full-text available via subscription  
Journal of Chromatography & Separation Techniques     Open Access   (Followers: 9)
Journal of Advanced Research     Open Access   (Followers: 2)
Journal of Analytical Science & Technology     Open Access   (Followers: 5)
Journal of Applied Science and Technology     Full-text available via subscription   (Followers: 1)
Journal of Applied Sciences and Environmental Management     Open Access   (Followers: 1)
Journal of Big History     Open Access   (Followers: 4)
Journal of Composites Science     Open Access   (Followers: 4)
Journal of Diversity Management     Open Access   (Followers: 4)
Journal of Indian Council of Philosophical Research     Hybrid Journal  
Journal of Institute of Science and Technology     Open Access  
Journal of King Saud University - Science     Open Access  
Journal of Mathematical and Fundamental Sciences     Open Access  
Journal of Negative and No Positive Results     Open Access  
Journal of Responsible Technology     Open Access  
Journal of Science and Technology     Open Access   (Followers: 2)
Journal of Science and Technology     Open Access   (Followers: 1)
Journal of Science and Technology (Ghana)     Open Access   (Followers: 3)
Journal of Science and Technology Policy Management     Hybrid Journal   (Followers: 1)
Journal of Science Foundation     Open Access   (Followers: 1)
Journal of Scientific Research and Reports     Open Access   (Followers: 1)
Journal of Shanghai Jiaotong University (Science)     Hybrid Journal  
Journal of Social Science Research     Open Access   (Followers: 2)
Journal of Taibah University for Science     Open Access  
Journal of the Ghana Science Association     Full-text available via subscription   (Followers: 3)
Journal of the History of Ideas     Full-text available via subscription   (Followers: 199)
Journal of the Indian Institute of Science     Hybrid Journal   (Followers: 4)
Journal of the Royal Society of New Zealand     Hybrid Journal   (Followers: 49)
Journal of the South Carolina Academy of Science     Open Access  
Journal of Unsolved Questions     Open Access  
Jurnal Sains Dasar     Open Access  
Jurnal Teknosains     Open Access  
Karaelmas Science and Engineering Journal     Open Access  
Karbala International Journal of Modern Science     Open Access  
Kennedy Institute of Ethics Journal     Full-text available via subscription   (Followers: 10)
Logo STI Science, Technology and Innovation     Open Access   (Followers: 14)
Malawi Journal of Science and Technology     Open Access   (Followers: 6)
Maskana     Open Access  
MethodsX     Open Access  
Mètode Science Studies Journal : Annual Review     Open Access  
Modern Applied Science     Open Access   (Followers: 1)
Momona Ethiopian Journal of Science     Open Access   (Followers: 5)
National Academy Science Letters     Hybrid Journal   (Followers: 3)
National Science Review     Hybrid Journal   (Followers: 1)
Natural Sciences     Open Access  
Natural Sciences Education     Hybrid Journal   (Followers: 1)
Naturen     Full-text available via subscription  
Nepal Journal of Science and Technology     Open Access  
Network Science     Hybrid Journal   (Followers: 4)
Nordic Journal of Science and Technology     Open Access   (Followers: 2)
Nordic Studies in Science Education     Open Access   (Followers: 4)
Nova     Open Access  
Open Conference Proceedings Journal     Open Access  
Open Journal of Applied Sciences     Open Access  
Orbis Cógnita : Revista Científica     Open Access   (Followers: 1)
Patterns     Open Access   (Followers: 9)
People and Nature     Open Access   (Followers: 4)
Población y Desarrollo - Argonautas y caminantes     Open Access  
Politique et Sociétés     Full-text available via subscription   (Followers: 1)
Portal de la Ciencia     Open Access  
Proceedings of the Indian National Science Academy     Full-text available via subscription   (Followers: 4)
Proceedings of the Linnean Society of New South Wales     Full-text available via subscription   (Followers: 2)
Proceedings of the Royal Society of Queensland, The     Full-text available via subscription  
QScience Connect     Open Access  
Quantum Science and Technology     Hybrid Journal   (Followers: 15)
Rafidain Journal of Science     Open Access  
Rehabilitation Research, Policy, and Education     Hybrid Journal   (Followers: 2)
Reportes Científicos de la FaCEN     Open Access  
Reports in Advances of Physical Sciences     Open Access  
Research Ideas and Outcomes     Open Access  
Research Integrity and Peer Review     Open Access   (Followers: 1)
Research Policy : X     Open Access   (Followers: 3)
Respuestas     Open Access  
Revista Bases de la Ciencia     Open Access  
Revista Cientifica Guillermo de Ockham     Open Access  
Revista Conhecimento Online     Open Access  
Revista Crítica de Ciências Sociais     Open Access  
Revista de Ciencia y Tecnología     Open Access  
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales     Open Access  
Revista de la Universidad del Zulia     Open Access  
Revista Politécnica     Open Access  
Revista Tecnológica     Open Access  
Revista UniVap     Open Access  
Revista Vivências em Ensino de Ciências     Open Access   (Followers: 1)
SAINSTIS     Open Access  
Sainteknol : Jurnal Sains dan Teknologi     Open Access  
Sci     Open Access  
Science     Full-text available via subscription   (Followers: 5418)
Science & Diplomacy     Free   (Followers: 3)
Science Advances     Free   (Followers: 45)
Science and Technology     Open Access   (Followers: 2)
Science Heritage Journal     Open Access  
Science World Journal     Open Access  
Science, Technology and Arts Research Journal     Open Access   (Followers: 1)
ScienceRise     Open Access  

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Acta Nova
Number of Followers: 2  

  This is an Open Access Journal Open Access journal
ISSN (Online) 1683-0789
Published by SciELO Homepage  [688 journals]
  • E d i t o r i a l

    •  
  • Efector final para soldadura de placas electrónicas con el robot ABB
           IRB 120

    • Abstract: Resumen: Este artículo presenta el diseño y desarrollo de un efector final de soldadura para el robot IRB 120 de la Universidad Católica "San Pablo". El objetivo es automatizar la soldadura por puntos en placas electrónicas pre perforadas, brindando funcionalidad adicional al brazo para incrementar su utilidad. Adicionalmente esto va a mejorar el laboratorio de la universidad y potenciar las prácticas estudiantiles. El sistema diseñado realiza la soldadura automática por puntos con una precisión milimétrica de ±0,5 mm, alcanzando un porcentaje de éxito mayor al 90% efectuando hasta 16 soldaduras por minuto. La investigación plantea desde el diseño de la herramienta, su estructura y funcionamiento, la base- soporte de la placa, la caja de control, el sistema de aplicación de estaño y el controlador PID discreto para la regulación de la temperatura del cautín. Además, detalla la programación en RobotStudio para controlar el robot IRB 120 y presenta los resultados de pruebas realizadas para validar el rendimiento del efector final en condiciones reales de trabajo. El análisis estadístico de las pruebas muestra una probabilidad de falla del 7,2% en las soldaduras. El efector alcanza soldaduras precisas con altos porcentajes de éxito mediante el cumplimiento de parámetros específicos como temperatura de 200 °C, exposición al calor de dos segundos antes de la soldadura, la utilización de componentes pasantes y la aplicación de aproximadamente tres mm3 de estaño.Abstract: This article presents the design and development of a welding end effector for the IRB 120 robot of the Catholic University "San Pablo". The objective is to automate spot welding on pre-drilled electronic boards, providing additional functionality to the arm to increase its usefulness. Additionally, this will improve the university laboratory and enhance student practices. The designed system performs automatic spot welding with a millimeter precision of ±0,5 mm, reaching a success rate of more than 90%, performing up to 16 welds per minute. The research includes the design of the tool, its structure and operation, the base-plate support, the control box, the tin application system and the discrete PID controller to regulate the soldering iron temperature. In addition, it details the programming in RobotStudio to control the IRB 120 robot and presents the results of tests performed to validate the performance of the end-effector under real working conditions. Statistical analysis of the tests shows a 7,2% probability of failure in the welds. The effector achieves accurate welds with high success rates by complying with specific parameters such as temperature of 200 °C, heat exposure of two seconds before welding, the use of through components and the application of approximately three mm3 of tin.
       
  • Determinación teórica y experimental de la solubilidad del sistema
           NaNO3-Mn(NO3)2-H2O a 25 °C y su aplicación a materiales de cambio de
           fase

    • Abstract: Abstract: In this work, the solubility of the ternary system NaNO3-Mn(NO3)2-H2O at 25 °C was determined experimentally by the traditional wet waste method and theoretically by the BET model, both results were consistent. The system formed an invariant point and the solid phases anhydrous NaNO3 and Mn(NO3)2-4H2O. A readjustment of the correlation coefficients of the equilibrium constant with temperature for NaNO3 was necessary. From the prediction of the polythermal curve with the model, a eutectic mixture was found with a mass composition of 3.82 % NaNO3, 96.18 % Mn(NO3)2-6H2O, and a temperature of 22.6°C. The latter was verified experimentally with measurements of crystallization and melting behavior, giving a small difference of 0.6 °C. The results found in this study can be applied to the simulation of nitrate salt separation processes and/or to the deeper design of phase change materials with operating temperature close to the melting point.RESUMEN: En este trabajo, la solubilidad del sistema ternario NaNO3-Mn(NO3)2-H2O fue determinada experimentalmente por el método clásico de los residuos húmedos, y teóricamente, por el modelo BET a 25 °C; ambos resultados fueron consistentes. El sistema tiene un punto invariante y las fases sólidas NaNO3 anhidro y Mn(NO3)2-4H2O. Los coeficientes en función de la temperatura de la constante de equilibrio fueron reajustados. A partir de la predicción de la curva poli-térmica con el modelo, se estableció que la mezcla es un eutéctico con la siguiente composición 3,82 % NaNO3, 96,18 % Mn(NO3)2-6H2O y temperatura de 22,6°C. Esta última fue verificada experimentalmente mediante mediciones de puntos de cristalización y fusión, estableciendo la diferencia con el valor teórico de 0,6 °C. Los resultados encontrados en este estudio pueden ser aplicados a la simulación de procesos de separación de nitratos y/o a la profundización del diseño de materiales de cambios de fase para el confort térmico.
       
  • Infestación de Jamillo (Ligaria cuneifolia) en árboles de Molle (Schinus
           molle) en el Valle de Cochabamba

    • Abstract: Resumen: El Molle (Schinus molle L.) es un árbol nativo y ampliamente distribuido en el Valle de Cochabamba, el cual es afectado por un hemiparásito conocido como Jamillo (Ligaria cuneifolia R. et P.). La incidencia y el grado de afectación o severidad que este representa aún no ha sido estudiada, lo cual motiva a la realización de la presente investigación. Se muestrearon 2.438 ejemplares presentes en 20 sitios distribuidos desde el municipio de Sipe Sipe al oeste, hasta el municipio de Sacaba al Este, a altitudes entre 2.500 a 2.800 m s.n.m. Se anotó su ubicación geográfica (latitud y longitud), el rango de altura (pequeño: 4 a 6 m; mediano: 7 a 9 m; o alto: mayores a 10 m) y el rango de infestación (sano: sin infestación aparente; leve: 1-30%; medio:31-60%; fuerte: 61-90%; o muerto: por infestación). Los resultados sugieren que la infestación es considerable, ya que se encuentra en todos los sitios muestreados y oscila entre un 23 a un 87%, con un promedio de 61% de los individuos estudiados. La infestación parece estar relacionada tanto con la altura de los ejemplares como por el sitio. Espacialmente, existe evidencia de una distribución de condiciones fitosanitarias más favorables para individuos ubicados hacia el sur de la zona de estudio y en sitios de menor altitud sobre el nivel del mar, en especial para elevaciones inferiores a 2.700 m s.n.m.Abstract: The pepper tree (Schinus molle L.) is a native tree widely distributed in the Cochabamba Valley, which is affected by a hemiparasite known as Jamillo (Ligaria cuneifolia R. et P.). The incidence and degree of infestation or severity that this represents has not yet been studied, which motivates the carrying out of the present investigation. 2.438 specimens were sampled in 20 sites distributed from the municipality of Sipe Sipe to the west, to the municipality of Sacaba to the east, at altitudes between 2.500 and 2.800 meters above sea level. Their geographical location (latitude and longitude), height range (small: 4 to 6 m; medium: 7 to 9 m; or tall: greater than 10 m) and range of infestation (healthy: no apparent infestation; mild: 1-30%; medium: 31-60%; strong: 61-90%; dead: due to infestation) were noted. The results suggest that the infestation is considerable, since it is found in all the sites sampled and ranges between 23 to 87%, with an average of 61% of the individuals studied. The infestation seems to be related to both the height of the specimens and the site. Spatially, there is evidence of a distribution of more favorable phytosanitary conditions for individuals located south of the study area and for lower sites, considering the height above sea level, especially when sites are located below 2.700 m a.s.l.
       
  • Análisis de atributos sensoriales que influyen en la percepción de
           calidad del café mediante la técnica multivariada de componentes
           principales

    • Abstract: Resumen: El presente estudio analiza la percepción de calidad del café mediante el Análisis de Componentes Principales (ACP), con el objetivo de identificar los factores sensoriales clave que influyen en la satisfacción del consumidor y a la vez caracterizar algunas granjas cafeteras en función de estos atributos. Para la recolección de datos se utilizó la plataforma en línea Kaggle y se aplicaron encuestas a 207 granjas en 22 países productores y consumidores de café, incluyendo Colombia, Brasil, Guatemala y Etiopía. La investigación se centró en la variedad Coffea arábica L., debido a su amplia producción y características diferenciadoras en sabor, altitud de cultivo y contenido de cafeína. La base de datos fue proporcionada por el Instituto de Calidad del Café (CQI), fue procesada utilizando SPSS vs. 28 y R Studio vs. 2022.02.0. El ACP permitió reducir la complejidad de las variables, destacando dos componentes principales que explican el 88,89% de la variabilidad. El primer componente (83,11%) agrupa los atributos sensoriales más valorados, mientras que el segundo (5,78%) añade información complementaria. Se identificó una fuerte correlación entre el sabor y la percepción de calidad (r = 0,878), siendo el atributo más determinante. El regusto y el balance también influyen positivamente, aunque con menor impacto. En contraste, la acidez y el cuerpo presentan una correlación menor, pero siguen siendo factores relevantes. Asimismo, se caracterizaron fincas cafeteras de ciertos países en función de las variables sensoriales. Los hallazgos destacan la importancia de mejorar el perfil sensorial del café, especialmente en términos de sabor y equilibrio, para incrementar la satisfacción del consumidor; mismos que pueden ser utilizados por cafeterías y productores para desarrollar estrategias que optimicen la experiencia del cliente y fortalezcan su posicionamiento en el mercado. Además, la metodología empleada demuestra la utilidad del ACP en el análisis de percepciones sensoriales, permitiendo desarrollar enfoques más precisos para la mejora de la calidad del café y la experiencia del cliente.Abstract: This study analyzes the perception of coffee quality using Principal Component Analysis (PCA), with the aim of identifying the key sensory factors that influence consumer satisfaction and at the same time characterizing some coffee farms based on these attributes. For data collection, the online platform Kaggle was used, and surveys were applied to 207 farms in 22 coffee producing and consuming countries, including Colombia, Brazil, Guatemala and Ethiopia. The research focused on the Coffea arabica L. variety, due to its wide production and differentiating characteristics in flavor, cultivation altitude and caffeine content. The database was provided by the Coffee Quality Institute (CQI) and was processed using SPSS vs. 28 and R Studio vs. 2022.02.0. The PCA allowed reducing the complexity of the variables, highlighting two main components that explain 88.89% of the variability. The first component (83.11%) groups the most valued sensory attributes, while the second (5.78%) adds complementary information. A strong correlation was identified between flavor and quality perception (r = 0.878), being the most determining attribute. Aftertaste and balance also have a positive influence, although with less impact. In contrast, acidity and body have a lower correlation but are still relevant factors. Likewise, coffee farms in certain countries were characterized based on sensory variables. The findings highlight the importance of improving the sensory profile of coffee, especially in terms of flavor and balance, to increase consumer satisfaction; these can be used by coffee shops and producers to develop strategies that optimize the customer experience and strengthen their positioning in the market. In addition, the methodology used demonstrates the usefulness of PCA in the analysis of sensory perceptions, allowing for the development of more precise approaches to improve coffee quality and customer experience.
       
  • Evaluación de los efectos de la dosificación de compost para contribuir
           a la restauración de suelos y la productividad del cultivo de maíz (Zea
           mays) en la Hacienda Pairumani (Cochabamba-Bolivia)

    • Abstract: Resumen: En el marco del proyecto "Restaura" entre la Universidad Católica Boliviana San Pablo y la Hacienda Pairumani, se demostró la necesidad de estudiar en qué medida una mayor dosificación de compost es viable en el cultivo de maíz (Zea mays). En el estudio se compararon los efectos de la aplicación de 20 t/ha (T1), 10 t/ha (T2) y 0 t/ha (T0) de compost. El análisis estadístico mostró diferencias significativas entre los tratamientos y se determinó que el tratamiento de 20 t/ha (T2) de compost mostró los mejores resultados en términos del desarrollo de planta, rendimiento en grano, ensilaje, fertilidad y microorganismos en suelo. Además, el análisis económico de costo beneficio, mostro resultados positivos para realizar el incremento a 20 t/ha de compost y de esta forma sea viable la restauración del suelo y la producción de maíz.Abstract: As part of the "Restaura" project between Universidad Católica Boliviana San Pablo and Hacienda Pairumani, the need to study to what extent a higher dosage of compost is viable in maize (Zea mays) cultivation was demonstrated. In the study, the effects of applying 20 t/ha (T1), 10 t/ha (T2) and 0 t/ha (T0) of compost were compared. The statistical analysis showed significant differences between treatments, and it was determined that the treatment of 20 t/ha (T2) of compost showed the best results in terms of plant development, grain yield, silage, fertility and soil microorganisms. Furthermore, the economic cost-benefit analysis showed positive results to increase compost to 20 t/ha and thus make soil restoration and corn production viable.
       
  • Impacto del Cambio de Cobertura la Tierra sobre la Temperatura en Puerto
           Villarroel, Bolivia (2019-2024)

    • Abstract: Abstract: This study analyzes the impact of different types of land cover (forest, deforested areas, and urban zones) on the land surface temperature (LST) in the Municipality of Puerto Villarroel, for the period 2019-2024. Satellite data from Landsat 8 and Sentinel-1/2 revealed that forested areas are up to 4.5°C cooler than urban zones due to evapotranspiration and shading. In contrast, urban zones show the highest temperatures (peaking at 36°C) due to the urban heat island effect. The differences between deforested areas and forests ranged from 0.7°C to 1.6°C, indicating that forest cover reduces temperatures more effectively than deforested areas. Supervised classification using Random Forest revealed a progressive loss of forest at an annual rate of 6%, while urban areas grew by 18% and deforested areas by 5%. It is concluded that forest cover is essential for mitigating extreme temperatures, protecting hydrological cycles, and conservation and reforestation policies are recommended.Resumen: Este estudio analiza el impacto de diferentes tipos de cobertura del suelo (bosque, áreas deforestadas y zonas urbanas) sobre la temperatura de la superficie terrestre (LST) en el Municipio de Puerto Villarroel, durante el período 2019-2024. Los datos satelitales de Landsat 8 y Sentinel-1/2 revelaron que las áreas boscosas son hasta 4,5°C más frías que las zonas urbanas debido a la evapotranspiración y la sombra. En contraste, las zonas urbanas muestran las temperaturas más altas (alcanzando 36°C) debido al efecto de isla de calor urbana. Las diferencias entre áreas deforestadas y bosques variaron entre 0,7°C y 1,6°C, indicando que la cobertura forestal reduce las temperaturas de manera más efectiva que las áreas deforestadas. La clasificación supervisada utilizando el algoritmo Random Forest reveló una pérdida progresiva de bosques a una tasa anual del 6%, mientras que las áreas urbanas crecieron un 18% y las áreas deforestadas un 5%. Se concluye que la cobertura forestal es esencial para mitigar temperaturas extremas, proteger los ciclos hidrológicos, y se recomiendan políticas de conservación y reforestación.
       
 
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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
Showing 1 - 200 of 265 Journals sorted alphabetically
Accountability in Research: Policies and Quality Assurance     Hybrid Journal   (Followers: 19)
Acta Nova     Open Access   (Followers: 2)
Acta Scientifica Malaysia     Open Access   (Followers: 1)
Acta Scientifica Naturalis     Open Access   (Followers: 4)
Adıyaman University Journal of Science     Open Access  
Advanced Science     Open Access   (Followers: 16)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 8)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 4)
Advances in Research     Open Access  
Advances in Science and Technology     Full-text available via subscription   (Followers: 18)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 8)
Afrique Science : Revue Internationale des Sciences et Technologie     Open Access   (Followers: 1)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 3)
Alfarama Journal of Basic & Applied Sciences     Open Access   (Followers: 12)
American Academic & Scholarly Research Journal     Open Access   (Followers: 4)
American Journal of Applied Sciences     Open Access   (Followers: 22)
American Journal of Humanities and Social Sciences     Open Access   (Followers: 14)
Anales del Instituto de la Patagonia     Open Access  
Applied Mathematics and Nonlinear Sciences     Open Access   (Followers: 2)
Arab Journal of Basic and Applied Sciences     Open Access  
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 1)
Archives Internationales d'Histoire des Sciences     Partially Free   (Followers: 5)
Archives of Current Research International     Open Access  
ARPHA Conference Abstracts     Open Access   (Followers: 1)
ARPHA Proceedings     Open Access  
Asian Journal of Advanced Research and Reports     Open Access  
Asian Journal of Scientific Research     Open Access   (Followers: 2)
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 5)
Australian Field Ornithology     Full-text available via subscription   (Followers: 1)
Australian Journal of Social Issues     Hybrid Journal   (Followers: 6)
Bangladesh Journal of Scientific Research     Open Access  
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 1)
Berichte Zur Wissenschaftsgeschichte     Hybrid Journal   (Followers: 11)
Bilge International Journal of Science and Technology Research     Open Access  
Bioethics Research Notes     Full-text available via subscription   (Followers: 15)
BJHS Themes     Open Access   (Followers: 5)
Bulletin de la Société Royale des Sciences de Liège     Open Access  
Bulletin of the National Research Centre     Open Access  
Chain Reaction     Full-text available via subscription  
Ciencia Amazónica (Iquitos)     Open Access  
Ciencia en su PC     Open Access   (Followers: 1)
Ciencia Ergo Sum     Open Access  
Ciência ET Praxis     Open Access  
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering     Open Access  
Comunicata Scientiae     Open Access  
Conference Papers in Science     Open Access  
Configurations     Full-text available via subscription   (Followers: 11)
COSMOS     Hybrid Journal   (Followers: 1)
Crea Ciencia Revista Científica     Open Access  
Current Issues in Criminal Justice     Hybrid Journal   (Followers: 14)
Current Research in Geoscience     Open Access   (Followers: 6)
Data     Open Access   (Followers: 4)
Dhaka University Journal of Science     Open Access  
Discover Sustainability     Open Access   (Followers: 4)
Einstein (São Paulo)     Open Access  
Ekaia : EHUko Zientzia eta Teknologia aldizkaria     Open Access  
Emergent Scientist     Open Access  
Enhancing Learning in the Social Sciences     Open Access   (Followers: 8)
Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas     Open Access  
Entramado     Open Access  
Entre Ciencia e Ingeniería     Open Access  
Epiphany     Open Access   (Followers: 1)
Ethiopian Journal of Education and Sciences     Open Access   (Followers: 5)
European Online Journal of Natural and Social Sciences     Open Access   (Followers: 4)
European Scientific Journal     Open Access   (Followers: 11)
Evidência - Ciência e Biotecnologia - Interdisciplinar     Open Access  
Exchanges : the Warwick Research Journal     Open Access   (Followers: 1)
Experimental Results     Open Access   (Followers: 2)
Fides et Ratio : Revista de Difusión Cultural y Científica     Open Access  
Fontanus     Open Access   (Followers: 1)
Forensic Science Policy & Management: An International Journal     Hybrid Journal   (Followers: 286)
Frontiers in Climate     Open Access   (Followers: 5)
Frontiers in Science     Open Access   (Followers: 1)
Fundamental Research     Open Access  
Futures & Foresight Science     Hybrid Journal   (Followers: 1)
Gaudium Sciendi     Open Access  
Ghana Studies     Full-text available via subscription   (Followers: 15)
Global Journal of Pure and Applied Sciences     Full-text available via subscription  
Globe, The     Full-text available via subscription   (Followers: 4)
HardwareX     Open Access  
Heidelberger Jahrbücher Online     Open Access  
Heliyon     Open Access   (Followers: 1)
History of Science and Technology     Open Access   (Followers: 5)
Hoosier Science Teacher     Open Access  
Indian Journal of History of Science     Hybrid Journal   (Followers: 2)
Instruments     Open Access  
Interciencia     Open Access  
International Annals of Science     Open Access  
International Journal of Advanced Multidisciplinary Research and Review     Open Access  
International Journal of Applied Science     Open Access  
International Journal of Engineering, Science and Technology     Open Access  
International Journal of Network Science     Hybrid Journal   (Followers: 3)
International Journal of Social Sciences and Management     Open Access   (Followers: 3)
International Journal of Technology Policy and Law     Hybrid Journal   (Followers: 10)
International Science and Technology Journal of Namibia     Open Access   (Followers: 2)
International Scientific and Vocational Studies Journal     Open Access  
Investiga : TEC     Open Access  
Investigación Joven     Open Access  
Investigacion y Ciencia     Open Access   (Followers: 1)
Iranian Journal of Science and Technology, Transactions A : Science     Hybrid Journal  
iScience     Open Access   (Followers: 2)
Issues in Science & Technology     Free   (Followers: 9)
Ithaca : Viaggio nella Scienza     Open Access  
J : Multidisciplinary Scientific Journal     Open Access  
Jaunujų mokslininkų darbai     Open Access   (Followers: 3)
Journal de la Recherche Scientifique de l'Universite de Lome     Full-text available via subscription  
Journal of Chromatography & Separation Techniques     Open Access   (Followers: 9)
Journal of Advanced Research     Open Access   (Followers: 2)
Journal of Analytical Science & Technology     Open Access   (Followers: 5)
Journal of Applied Science and Technology     Full-text available via subscription   (Followers: 1)
Journal of Applied Sciences and Environmental Management     Open Access   (Followers: 1)
Journal of Big History     Open Access   (Followers: 4)
Journal of Composites Science     Open Access   (Followers: 4)
Journal of Diversity Management     Open Access   (Followers: 4)
Journal of Indian Council of Philosophical Research     Hybrid Journal  
Journal of Institute of Science and Technology     Open Access  
Journal of King Saud University - Science     Open Access  
Journal of Mathematical and Fundamental Sciences     Open Access  
Journal of Negative and No Positive Results     Open Access  
Journal of Responsible Technology     Open Access  
Journal of Science and Technology     Open Access   (Followers: 2)
Journal of Science and Technology     Open Access   (Followers: 1)
Journal of Science and Technology (Ghana)     Open Access   (Followers: 3)
Journal of Science and Technology Policy Management     Hybrid Journal   (Followers: 1)
Journal of Science Foundation     Open Access   (Followers: 1)
Journal of Scientific Research and Reports     Open Access   (Followers: 1)
Journal of Shanghai Jiaotong University (Science)     Hybrid Journal  
Journal of Social Science Research     Open Access   (Followers: 2)
Journal of Taibah University for Science     Open Access  
Journal of the Ghana Science Association     Full-text available via subscription   (Followers: 3)
Journal of the History of Ideas     Full-text available via subscription   (Followers: 199)
Journal of the Indian Institute of Science     Hybrid Journal   (Followers: 4)
Journal of the Royal Society of New Zealand     Hybrid Journal   (Followers: 49)
Journal of the South Carolina Academy of Science     Open Access  
Journal of Unsolved Questions     Open Access  
Jurnal Sains Dasar     Open Access  
Jurnal Teknosains     Open Access  
Karaelmas Science and Engineering Journal     Open Access  
Karbala International Journal of Modern Science     Open Access  
Kennedy Institute of Ethics Journal     Full-text available via subscription   (Followers: 10)
Logo STI Science, Technology and Innovation     Open Access   (Followers: 14)
Malawi Journal of Science and Technology     Open Access   (Followers: 6)
Maskana     Open Access  
MethodsX     Open Access  
Mètode Science Studies Journal : Annual Review     Open Access  
Modern Applied Science     Open Access   (Followers: 1)
Momona Ethiopian Journal of Science     Open Access   (Followers: 5)
National Academy Science Letters     Hybrid Journal   (Followers: 3)
National Science Review     Hybrid Journal   (Followers: 1)
Natural Sciences     Open Access  
Natural Sciences Education     Hybrid Journal   (Followers: 1)
Naturen     Full-text available via subscription  
Nepal Journal of Science and Technology     Open Access  
Network Science     Hybrid Journal   (Followers: 4)
Nordic Journal of Science and Technology     Open Access   (Followers: 2)
Nordic Studies in Science Education     Open Access   (Followers: 4)
Nova     Open Access  
Open Conference Proceedings Journal     Open Access  
Open Journal of Applied Sciences     Open Access  
Orbis Cógnita : Revista Científica     Open Access   (Followers: 1)
Patterns     Open Access   (Followers: 9)
People and Nature     Open Access   (Followers: 4)
Población y Desarrollo - Argonautas y caminantes     Open Access  
Politique et Sociétés     Full-text available via subscription   (Followers: 1)
Portal de la Ciencia     Open Access  
Proceedings of the Indian National Science Academy     Full-text available via subscription   (Followers: 4)
Proceedings of the Linnean Society of New South Wales     Full-text available via subscription   (Followers: 2)
Proceedings of the Royal Society of Queensland, The     Full-text available via subscription  
QScience Connect     Open Access  
Quantum Science and Technology     Hybrid Journal   (Followers: 15)
Rafidain Journal of Science     Open Access  
Rehabilitation Research, Policy, and Education     Hybrid Journal   (Followers: 2)
Reportes Científicos de la FaCEN     Open Access  
Reports in Advances of Physical Sciences     Open Access  
Research Ideas and Outcomes     Open Access  
Research Integrity and Peer Review     Open Access   (Followers: 1)
Research Policy : X     Open Access   (Followers: 3)
Respuestas     Open Access  
Revista Bases de la Ciencia     Open Access  
Revista Cientifica Guillermo de Ockham     Open Access  
Revista Conhecimento Online     Open Access  
Revista Crítica de Ciências Sociais     Open Access  
Revista de Ciencia y Tecnología     Open Access  
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales     Open Access  
Revista de la Universidad del Zulia     Open Access  
Revista Politécnica     Open Access  
Revista Tecnológica     Open Access  
Revista UniVap     Open Access  
Revista Vivências em Ensino de Ciências     Open Access   (Followers: 1)
SAINSTIS     Open Access  
Sainteknol : Jurnal Sains dan Teknologi     Open Access  
Sci     Open Access  
Science     Full-text available via subscription   (Followers: 5418)
Science & Diplomacy     Free   (Followers: 3)
Science Advances     Free   (Followers: 45)
Science and Technology     Open Access   (Followers: 2)
Science Heritage Journal     Open Access  
Science World Journal     Open Access  
Science, Technology and Arts Research Journal     Open Access   (Followers: 1)
ScienceRise     Open Access  

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