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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
Showing 201 - 265 of 265 Journals sorted by number of followers
Revista Científica de la Universidad Nacional del Este     Open Access   (Followers: 12)
History of Science and Technology     Open Access   (Followers: 5)
Orbis Cógnita : Revista Científica     Open Access   (Followers: 4)
Research Policy : X     Open Access   (Followers: 4)
Data     Open Access   (Followers: 4)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 4)
Frontiers in Climate     Open Access   (Followers: 4)
MUST : Journal of Mathematics Education, Science and Technology     Open Access   (Followers: 4)
Journal of the Indian Institute of Science     Hybrid Journal   (Followers: 4)
Discover Sustainability     Open Access   (Followers: 3)
Journal of Composites Science     Open Access   (Followers: 3)
Research     Open Access   (Followers: 3)
Journal of Big History     Open Access   (Followers: 3)
Patterns     Open Access   (Followers: 3)
People and Nature     Open Access   (Followers: 3)
Science & Technology Studies     Open Access   (Followers: 3)
Citizen Science : Theory and Practice     Open Access   (Followers: 2)
Indonesian Journal of Science and Mathematics Education     Open Access   (Followers: 2)
International Journal of Culture and Modernity     Open Access   (Followers: 2)
Experimental Results     Open Access   (Followers: 1)
Global Journal of Science Frontier Research     Open Access   (Followers: 1)
International Journal of Innovative Research and Scientific Studies     Open Access   (Followers: 1)
Acta Scientifica Malaysia     Open Access   (Followers: 1)
Applied Mathematics and Nonlinear Sciences     Open Access   (Followers: 1)
Bilge International Journal of Science and Technology Research     Open Access   (Followers: 1)
Journal of Science and Engineering     Open Access   (Followers: 1)
Uluslararası Bilimsel Araştırmalar Dergisi (IBAD)     Open Access   (Followers: 1)
Journal of Science and Technology     Open Access   (Followers: 1)
AAS Open Research     Open Access   (Followers: 1)
ARPHA Conference Abstracts     Open Access   (Followers: 1)
Revista Vivências em Ensino de Ciências     Open Access   (Followers: 1)
iScience     Open Access   (Followers: 1)
Scientonomy : Journal for the Science of Science     Open Access   (Followers: 1)
Futures & Foresight Science     Hybrid Journal   (Followers: 1)
International Journal of Research in Science     Open Access   (Followers: 1)
Jaunujų mokslininkų darbai     Open Access   (Followers: 1)
Impact     Open Access   (Followers: 1)
Revista Saber Digital     Open Access   (Followers: 1)
Fundamental Research     Open Access  
BJHS Themes     Open Access  
South American Sciences     Open Access  
Middle European Scientific Bulletin     Open Access  
Journal of Alasmarya University     Open Access  
Research Integrity and Peer Review     Open Access  
Natural Sciences Education     Hybrid Journal  
Proceedings of the Indian National Science Academy     Full-text available via subscription  
Indian Journal of History of Science     Hybrid Journal  
RAC: Revista Angolana de Ciências     Open Access  
The Innovation     Open Access  
Journal of Responsible Technology     Open Access  
Natural Sciences     Open Access  
Revista de la Sociedad Científica del Paraguay     Open Access  
Rekayasa     Open Access  
Rihan Journal for Scientific Publishing     Open Access  
Türk Bilim ve Mühendislik Dergisi     Open Access  
ArtefaCToS : Revista de estudios sobre la ciencia y la tecnología     Open Access  
Ethiopian Journal of Sciences and Sustainable Development     Open Access  
Vilnius University Proceedings     Open Access  
Sciential     Open Access  
ARPHA Proceedings     Open Access  
Gaudium Sciendi     Open Access  
Crea Ciencia Revista Científica     Open Access  
Rafidain Journal of Science     Open Access  
Journal of Al-Qadisiyah for Pure Science     Open Access  
Revista Tecnológica     Open Access  
Himalayan Journal of Science and Technology     Open Access  
International Journal of Academic Research in Business, Arts & Science     Open Access  
Universidad, Ciencia y Tecnología     Open Access  
Fides et Ratio : Revista de Difusión Cultural y Científica     Open Access  
Acta Nova     Open Access  
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales     Open Access  
Entre Ciencia e Ingeniería     Open Access  
Revista Politécnica     Open Access  
Reportes Científicos de la FaCEN     Open Access  
Jurnal Ilmiah Ilmu Terapan Universitas Jambi : JIITUJ     Open Access  
Revista Eletrônica Ludus Scientiae     Open Access  
Emergent Scientist     Open Access  
Journal of Scientific Research and Reports     Open Access  
Asian Journal of Advanced Research and Reports     Open Access  
Archives of Current Research International     Open Access  
Advances in Research     Open Access  
International Journal of Applied Science     Open Access  
Iranian Journal of Science and Technology, Transactions A : Science     Hybrid Journal  
J : Multidisciplinary Scientific Journal     Open Access  
Revista Binacional Brasil - Argentina: Diálogo entre as ciências     Open Access  
Revista Ciencia y Tecnología     Open Access  
Journal of Institute of Science and Technology     Open Access  
Journal of Science (JSc)     Open Access  
WikiJournal of Science     Open Access  
Acta Materialia Transilvanica     Open Access  
Integrated Research Advances     Open Access  
PENDIPA : Journal of Science Education     Open Access  
Open Conference Proceedings Journal     Open Access  
Naturen     Full-text available via subscription  
Ekaia : EHUko Zientzia eta Teknologia aldizkaria     Open Access  
Sci     Open Access  
Maskana     Open Access  
Hoosier Science Teacher     Open Access  
Reports in Advances of Physical Sciences     Open Access  
Facets     Open Access  
Adıyaman University Journal of Science     Open Access  
Revista Brasileira de Iniciação Científica     Open Access  
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering     Open Access  
Scientific African     Open Access  
Scientific Journal of Mehmet Akif Ersoy University     Open Access  
Black Sea Journal of Engineering and Science     Open Access  
Fırat University Turkish Journal of Science & Technology     Open Access  
Gazi University Journal of Science     Open Access  
Middle East Journal of Science     Open Access  
International Journal of Computational and Experimental Science and Engineering (IJCESEN)     Open Access  
International Journal of Engineering, Technology and Natural Sciences     Open Access  
Bulletin of the National Research Centre     Open Access  
Uni-pluriversidad     Open Access  
ConCiencia     Open Access  
Ciencia y Tecnología     Open Access  
Revista Bases de la Ciencia     Open Access  
Elkawnie : Journal of Islamic Science and Technology     Open Access  
Ciência ET Praxis     Open Access  
Arab Journal of Basic and Applied Sciences     Open Access  
International Annals of Science     Open Access  
Science Heritage Journal     Open Access  
Avrasya Terim Dergisi     Open Access  
International Scientific and Vocational Studies Journal     Open Access  
TÜBAV Bilim Dergisi     Open Access  
LOGIKA Jurnal Ilmiah Lemlit Unswagati Cirebon     Open Access  
Dalat University Journal of Science     Open Access  
Investiga : TEC     Open Access  
Investigación Joven     Open Access  
Respuestas     Open Access  
Science Diliman     Open Access  
Instruments     Open Access  
Revista Científica y Tecnológica UPSE     Open Access  
HardwareX     Open Access  
Sultan Qaboos University Journal for Science     Open Access  
Borneo Journal of Resource Science and Technology     Open Access  
Sainstek : Jurnal Sains dan Teknologi     Open Access  
Revista de Información Científica     Open Access  
Indonesian Journal of Fundamental Sciences     Open Access  
Sainteknol : Jurnal Sains dan Teknologi     Open Access  
Jurnal Natural     Open Access  
Frontiers for Young Minds     Open Access  
Revista Ciência, Tecnologia & Ambiente     Open Access  
Journal of Indian Council of Philosophical Research     Hybrid Journal  
Journal of Negative and No Positive Results     Open Access  
Revista Conhecimento Online     Open Access  
Nova     Open Access  
CienciaUAT     Open Access  
Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas     Open Access  
Makara Journal of Science     Open Access  
Jurnal Sains Dasar     Open Access  
Indonesian Journal of Science and Technology     Open Access  
Ethiopian Journal of Science and Technology     Open Access  
Jurnal Matematika, Sains, Dan Teknologi     Open Access  
Heidelberger Jahrbücher Online     Open Access  
ARO. The Scientific Journal of Koya University     Open Access  
International Journal of Recent Contributions from Engineering, Science & IT     Open Access  
Estação Científica (UNIFAP)     Open Access  
The Winnower     Open Access  

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Anales del Instituto de la Patagonia
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Online) 0718-686X
Published by SciELO Homepage  [672 journals]
  • Identificación de bacterias antárticas con actividad antimicrobiana
           aisladas de la rizósfera de Deschampsia antarctica Desv.

    • Abstract: RESUMEN: La disminución sostenida de la disponibilidad de nuevas moléculas antimicrobianas para el uso terapéutico en las últimas décadas y el gran aumento de microorganismos resistentes a estos compuestos hace necesario buscar nuevas sustancias con propiedades antimicrobianas. Los ambientes extremos, donde hay poca disponibilidad de nutrientes, son escenarios propicios para buscar este tipo de compuestos, ya que las bacterias compiten entre sí y con otros organismos por posicionarse en el nicho ecológico y secretan, asociado a su metabolismo secundario, una serie de moléculas que inhiben o matan a otros microorga nismos, evitando su multiplicación. Nuestro grupo posee una colección de bacterias aisladas de la rizósfera de suelo del con tinente antártico, que logran crecer en condiciones de deprivación de nutrientes y a 4°C. Debido al hábitat extremo donde se desarrollan, las bacterias de los suelos de la Antártica están en una constante competencia por los recursos nutricionales, desarrollando distintas estrategias para colonizar su nicho ecológico y competir con otros microorganismos de la microbiota antártica. El objetivo de este trabajo consistió en identificar bacterias aisladas de la rizósfera de Deschampsia antarctica Desv. que inhiben el crecimiento de bacterias y hongos patógenos para humanos. A partir de una colección de 55 aislados de la rizósfera de la planta D. antarctica Desv. se identificaron 11 aislados con capacidad de matar o inhibir bacterias patógenas humanas, pero ningún aislado inhibió el crecimiento del hongo Candida albicans. Los resultados mos traron que las 11 bacterias antárticas con actividad antibacteriana corresponden a bacilos aerobios estrictos, Gram negativo, psicrófilos que pertenecen al género Pseudomonas.ABSTRACT: The sustained decrease in the availability of new antimicrobial molecules for thera peutic use in recent decades and the large increase in microorganisms resistant to these compounds makes it necessary to search for new substances with antimicrobial properties. Extreme environments, where there is little availability of nutrients, are favorable scenarios to search for this type of compounds, since bacteria compete with other bacteria or other organisms to position themselves in the ecological niche and secrete, associated with their secondary metabolism, a series of molecules that inhibit or kill other microorganisms thus preventing their proliferation. Our group has a collection of rhizosphere bacteria from soil of the Antarctic continent that has ability to grow under conditions of food deprivation and at 4°C. Due to the extreme habitat where they develop, Antarctic soil bacteria are in constant competition for nutritional resources and therefore develop different strategies to colonize their ecological niche and compete with other microorganisms of the Antarctic microbiota. The objective of this work was to identify bacteria isolated from the rhizosphere of Deschampsia antarctica Desv. that inhibit the growth of bacteria and fungi that are pathogenic for humans. From a collection of 55 rhizosphere isolates of the Deschampsia antarctica Desv. we identified 11 isolates with the capacity to eliminate human pathogenic bacteria, but no isolate from the collection eliminated the Candida albicans fungus. The 11 Antarctic bacteria with antibacterial capacity are strict aerobic Gram-negative bacilli, psychro phile to the genus Pseudomonas.
       
  • Humedales costeros del río Maullín: uno de los lugares con mayor
           diversidad de aves acuáticas en Chile

    • Abstract: RESUMEN: El Santuario de la Naturaleza Humedales del río Maullín es un sistema compuesto por diversos tipos de humedales, desde su nacimiento en el lago Llanquihue hasta su encuentro con el océano Pacífico. Su gran estuario constituye uno de los complejos de humedales costeros más diversos de Chile continental. El objetivo del presente trabajo fue determinar la composición y estructura de la comunidad de aves acuáticas presentes en diversos humedales costeros del río Maullín, considerando su variación estacional a lo largo de seis años de estudio. Desde el año 2015 al 2020, se realizaron censos estacionales de aves acuáticas en cuatro humedales costeros del río Maullín: Las Lajas, Laguna Quenuir, Lepihué-La Pasada y Amortajado. En total se registraron 68 especies de aves acuáticas, de las cuales el 70% son residentes y cerca del 30% aves playeras migratorias mayoritariamente de origen boreal. Las mayores dife rencias en la diversidad de aves acuáticas se obtuvieron al comparar el sitio Laguna Quenuir con el resto de los humedales costeros estudiados. Este humedal presentó una mayor particularidad en la diversidad de aves, por tanto, se recomienda tomar medidas de gestión especiales para su conservación. Por otra parte, los humedales de Amortajado y Las Lajas presentaron valores similares de riqueza y abundancia de aves acuáticas, compartiendo importantes abundancias de aves playeras migratorias como Phoenicopterus chilensis y Limosa haemastica. Los humedales costeros del río Maullín corresponden a uno de los lugares con mayor diversidad de aves acuáticas en el litoral de Chile.ABSTRACT: The Sanctuary of Nature Humedales del río Maullín is a system made up of various types of wetlands, from its origin in Llanquihue Lake to its encounter with the Pacific Ocean. Its great estuary constitutes one of the coastal wetland systems most diverse of continental Chile. The objective of this work was to determine the composition and structure of the community of aquatic birds present in various coastal wetlands of the Maullín River, considering its seasonal variation over six years of study. From 2015 to 2020, seasonal censuses of aquatic birds were conducted in four coastal wetlands of the Maullín River: Las Lajas, Laguna Quenuir, Lepihué-La Pasada, and Amortajado. A total of 68 species of aquatic birds were recorded, of which 70% are residents, and about 30% migratory shorebirds, mostly of boreal origin. The greatest differences in the diversity of aquatic birds were obtained when comparing Laguna Quenuir with the rest of the coastal wetlands studied. This wetland presented a greater particularity in the diversity of birds, therefore, it is advisable to take special management measures for its conservation. On the other hand, the wetlands of Amortajado and Las Lajas presented similar values of richness and abundance of aquatic birds, sharing important abundances of migratory shorebirds such as Phoenicopterus chilensis and Limosa haemastica. The coastal wetlands of the Maullín River correspond to one of the places with the greatest diversity of aquatic birds on the Chilean littoral.
       
 
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