Subjects -> BIOLOGY (Total: 3174 journals)
    - BIOCHEMISTRY (239 journals)
    - BIOENGINEERING (143 journals)
    - BIOLOGY (1491 journals)
    - BIOPHYSICS (53 journals)
    - BIOTECHNOLOGY (243 journals)
    - BOTANY (233 journals)
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    - MICROSCOPY (13 journals)
    - ORNITHOLOGY (26 journals)
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    - ZOOLOGY (117 journals)

BIOLOGY (1491 journals)                  1 2 3 4 5 6 7 8 | Last

Showing 1 - 200 of 1720 Journals sorted alphabetically
AAPS Journal     Hybrid Journal   (Followers: 24)
Abasyn Journal of Life Sciences     Open Access   (Followers: 1)
ACS Pharmacology & Translational Science     Hybrid Journal   (Followers: 3)
ACS Synthetic Biology     Hybrid Journal   (Followers: 31)
Acta Biologica Hungarica     Full-text available via subscription   (Followers: 5)
Acta Biologica Marisiensis     Open Access  
Acta Biologica Sibirica     Open Access   (Followers: 1)
Acta Biologica Turcica     Open Access   (Followers: 1)
Acta Biomaterialia     Hybrid Journal   (Followers: 31)
Acta Biotheoretica     Hybrid Journal   (Followers: 3)
Acta Chiropterologica     Full-text available via subscription   (Followers: 5)
acta ethologica     Hybrid Journal   (Followers: 5)
Acta Fytotechnica et Zootechnica     Open Access   (Followers: 2)
Acta Ichthyologica et Piscatoria     Open Access   (Followers: 4)
Acta Médica Costarricense     Open Access   (Followers: 2)
Acta Musei Silesiae, Scientiae Naturales     Open Access  
Acta Neurobiologiae Experimentalis     Open Access  
Acta Scientiae Biological Research     Open Access   (Followers: 1)
Acta Scientiarum. Biological Sciences     Open Access   (Followers: 2)
Acta Scientifica Naturalis     Open Access   (Followers: 2)
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis     Open Access   (Followers: 2)
Acta Universitatis Lodziensis : Folia Biologica et Oecologica     Open Access  
Actualidades Biológicas     Open Access   (Followers: 1)
Advanced Biology     Hybrid Journal   (Followers: 1)
Advanced Health Care Technologies     Open Access   (Followers: 12)
Advanced Journal of Graduate Research     Open Access   (Followers: 1)
Advanced Membranes     Open Access   (Followers: 7)
Advanced Quantum Technologies     Hybrid Journal   (Followers: 3)
Advances in Bioinformatics     Open Access   (Followers: 21)
Advances in Biological Regulation     Hybrid Journal   (Followers: 4)
Advances in Biology     Open Access   (Followers: 10)
Advances in Biomarker Sciences and Technology     Open Access   (Followers: 2)
Advances in Biosensors and Bioelectronics     Open Access   (Followers: 6)
Advances in Cell Biology/ Medical Journal of Cell Biology     Open Access   (Followers: 22)
Advances in Ecological Research     Full-text available via subscription   (Followers: 42)
Advances in Environmental Sciences - International Journal of the Bioflux Society     Open Access   (Followers: 15)
Advances in Enzyme Research     Open Access   (Followers: 10)
Advances in High Energy Physics     Open Access   (Followers: 23)
Advances in Human Biology     Open Access   (Followers: 6)
Advances in Life Science and Technology     Open Access   (Followers: 10)
Advances in Life Sciences     Open Access   (Followers: 5)
Advances in Marine Biology     Full-text available via subscription   (Followers: 23)
Advances in Tropical Biodiversity and Environmental Sciences     Open Access   (Followers: 4)
Advances in Virus Research     Full-text available via subscription   (Followers: 7)
Adversity and Resilience Science : Journal of Research and Practice     Hybrid Journal   (Followers: 3)
African Journal of Ecology     Hybrid Journal   (Followers: 17)
African Journal of Range & Forage Science     Hybrid Journal   (Followers: 12)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 3)
Ageing Research Reviews     Hybrid Journal   (Followers: 13)
Aggregate     Open Access   (Followers: 2)
Aging Cell     Open Access   (Followers: 24)
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 2)
AJP Cell Physiology     Hybrid Journal   (Followers: 14)
AJP Endocrinology and Metabolism     Hybrid Journal   (Followers: 25)
AJP Lung Cellular and Molecular Physiology     Hybrid Journal   (Followers: 3)
Al-Kauniyah : Jurnal Biologi     Open Access  
Alasbimn Journal     Open Access   (Followers: 1)
Alces : A Journal Devoted to the Biology and Management of Moose     Open Access  
All Life     Open Access  
AMB Express     Open Access   (Followers: 1)
Ambix     Hybrid Journal   (Followers: 3)
American Journal of Agricultural and Biological Sciences     Open Access   (Followers: 6)
American Journal of Bioethics     Hybrid Journal   (Followers: 18)
American Journal of Human Biology     Hybrid Journal   (Followers: 15)
American Journal of Medical and Biological Research     Open Access   (Followers: 3)
American Journal of Plant Sciences     Open Access   (Followers: 19)
American Journal of Primatology     Hybrid Journal   (Followers: 15)
American Naturalist     Full-text available via subscription   (Followers: 78)
Amphibia-Reptilia     Hybrid Journal   (Followers: 5)
Anaerobe     Hybrid Journal   (Followers: 3)
Analytical Methods     Hybrid Journal   (Followers: 8)
Analytical Science Advances     Open Access   (Followers: 1)
Anatomical Science International     Hybrid Journal   (Followers: 3)
Animal Cells and Systems     Hybrid Journal   (Followers: 6)
Animal Microbiome     Open Access   (Followers: 1)
Animal Models and Experimental Medicine     Open Access  
Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale     Full-text available via subscription   (Followers: 2)
Annales Henri Poincaré     Hybrid Journal   (Followers: 2)
Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia     Open Access   (Followers: 1)
Annals of Applied Biology     Hybrid Journal   (Followers: 6)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18)
Annals of Human Biology     Hybrid Journal   (Followers: 5)
Annals of Science and Technology     Open Access   (Followers: 2)
Annual Research & Review in Biology     Open Access  
Annual Review of Biomedical Engineering     Full-text available via subscription   (Followers: 18)
Annual Review of Biophysics     Full-text available via subscription   (Followers: 24)
Annual Review of Cancer Biology     Full-text available via subscription   (Followers: 3)
Annual Review of Cell and Developmental Biology     Full-text available via subscription   (Followers: 41)
Annual Review of Food Science and Technology     Full-text available via subscription   (Followers: 13)
Annual Review of Genomics and Human Genetics     Full-text available via subscription   (Followers: 27)
Annual Review of Phytopathology     Full-text available via subscription   (Followers: 11)
Anthropological Review     Open Access   (Followers: 27)
Antibiotics     Open Access   (Followers: 11)
Antioxidants     Open Access   (Followers: 4)
Antioxidants & Redox Signaling     Hybrid Journal   (Followers: 8)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 3)
Anzeiger für Schädlingskunde     Hybrid Journal   (Followers: 1)
Apidologie     Hybrid Journal   (Followers: 4)
Apmis     Hybrid Journal   (Followers: 1)
APOPTOSIS     Hybrid Journal   (Followers: 8)
Applied Biology     Open Access   (Followers: 1)
Applied Bionics and Biomechanics     Open Access   (Followers: 4)
Applied Phycology     Open Access  
Applied Vegetation Science     Full-text available via subscription   (Followers: 9)
Aquaculture Environment Interactions     Open Access   (Followers: 6)
Aquaculture International     Hybrid Journal   (Followers: 24)
Aquaculture Reports     Open Access   (Followers: 3)
Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society     Open Access   (Followers: 8)
Aquatic Biology     Open Access   (Followers: 8)
Aquatic Ecology     Hybrid Journal   (Followers: 41)
Aquatic Ecosystem Health & Management     Hybrid Journal   (Followers: 15)
Aquatic Science and Technology     Open Access   (Followers: 2)
Aquatic Toxicology     Hybrid Journal   (Followers: 25)
Arabian Journal of Scientific Research / المجلة العربية للبحث العلمي     Open Access  
Archaea     Open Access   (Followers: 3)
Archiv für Molluskenkunde: International Journal of Malacology     Full-text available via subscription   (Followers: 1)
Archives of Biological Sciences     Open Access  
Archives of Microbiology     Hybrid Journal   (Followers: 9)
Archives of Natural History     Hybrid Journal   (Followers: 7)
Archives of Oral Biology     Hybrid Journal   (Followers: 2)
Archives of Virology     Hybrid Journal   (Followers: 6)
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2)
Arctic     Open Access   (Followers: 2)
Arid Ecosystems     Hybrid Journal   (Followers: 2)
Arquivos do Museu Dinâmico Interdisciplinar     Open Access  
Arthropod Structure & Development     Hybrid Journal   (Followers: 2)
Arthropod Systematics & Phylogeny     Open Access   (Followers: 5)
Artificial DNA: PNA & XNA     Hybrid Journal   (Followers: 2)
Artificial Intelligence in the Life Sciences     Open Access  
Asian Bioethics Review     Full-text available via subscription   (Followers: 2)
Asian Journal of Biological Sciences     Open Access   (Followers: 2)
Asian Journal of Biology     Open Access  
Asian Journal of Biotechnology and Bioresource Technology     Open Access  
Asian Journal of Cell Biology     Open Access   (Followers: 4)
Asian Journal of Developmental Biology     Open Access   (Followers: 1)
Asian Journal of Medical and Biological Research     Open Access   (Followers: 3)
Asian Journal of Nematology     Open Access   (Followers: 4)
Asian Journal of Poultry Science     Open Access   (Followers: 3)
Atti della Accademia Peloritana dei Pericolanti - Classe di Scienze Medico-Biologiche     Open Access  
Australian Life Scientist     Full-text available via subscription   (Followers: 2)
Australian Mammalogy     Hybrid Journal   (Followers: 8)
Autophagy     Hybrid Journal   (Followers: 7)
Avian Biology Research     Hybrid Journal   (Followers: 4)
Avian Conservation and Ecology     Open Access   (Followers: 16)
Bacterial Empire     Open Access   (Followers: 1)
Bacteriology Journal     Open Access   (Followers: 2)
Bacteriophage     Full-text available via subscription   (Followers: 2)
Bangladesh Journal of Bioethics     Open Access  
Bangladesh Journal of Plant Taxonomy     Open Access  
Bangladesh Journal of Scientific Research     Open Access  
Berita Biologi     Open Access  
Between the Species     Open Access   (Followers: 2)
BIO Web of Conferences     Open Access  
Bio-Grafía. Escritos sobre la Biología y su enseñanza     Open Access  
Bio-Lectura     Open Access  
BIO-SITE : Biologi dan Sains Terapan     Open Access  
Bioactive Compounds in Health and Disease     Open Access  
Biocatalysis and Biotransformation     Hybrid Journal   (Followers: 5)
BioCentury Innovations     Full-text available via subscription   (Followers: 2)
Biochemistry and Cell Biology     Hybrid Journal   (Followers: 15)
Biochimie     Hybrid Journal   (Followers: 4)
BioControl     Hybrid Journal   (Followers: 2)
Biocontrol Science and Technology     Hybrid Journal   (Followers: 5)
Biodemography and Social Biology     Hybrid Journal  
BIODIK : Jurnal Ilmiah Pendidikan Biologi     Open Access  
BioDiscovery     Open Access   (Followers: 2)
Biodiversitas : Journal of Biological Diversity     Open Access   (Followers: 1)
Biodiversity : Research and Conservation     Open Access   (Followers: 28)
Biodiversity Data Journal     Open Access   (Followers: 7)
Biodiversity Informatics     Open Access   (Followers: 2)
Biodiversity Information Science and Standards     Open Access   (Followers: 2)
Bioeduscience     Open Access  
Bioeksperimen : Jurnal Penelitian Biologi     Open Access  
Bioelectrochemistry     Hybrid Journal   (Followers: 1)
Bioelectromagnetics     Hybrid Journal   (Followers: 1)
Bioenergy Research     Hybrid Journal   (Followers: 3)
Bioengineering and Bioscience     Open Access   (Followers: 1)
BioEssays     Hybrid Journal   (Followers: 10)
Bioethica     Open Access   (Followers: 1)
Bioethics     Hybrid Journal   (Followers: 21)
BioéthiqueOnline     Open Access   (Followers: 1)
Biogeographia : The Journal of Integrative Biogeography     Open Access   (Followers: 2)
Biogeosciences (BG)     Open Access   (Followers: 14)
Biogeosciences Discussions (BGD)     Open Access   (Followers: 4)
Bioinformatics     Hybrid Journal   (Followers: 226)
Bioinformatics Advances : Journal of the International Society for Computational Biology     Open Access   (Followers: 1)
Bioinformatics and Biology Insights     Open Access   (Followers: 13)
Biointerphases     Open Access   (Followers: 1)
Biojournal of Science and Technology     Open Access  
BioLink : Jurnal Biologi Lingkungan, Industri, Kesehatan     Open Access  
Biologia     Hybrid Journal   (Followers: 1)
Biologia Futura     Hybrid Journal  
Biologia on-line : Revista de divulgació de la Facultat de Biologia     Open Access  
Biological Bulletin     Partially Free   (Followers: 6)
Biological Control     Hybrid Journal   (Followers: 6)
Biological Invasions     Hybrid Journal   (Followers: 22)
Biological Journal of the Linnean Society     Hybrid Journal   (Followers: 19)
Biological Procedures Online     Open Access  
Biological Psychiatry     Hybrid Journal   (Followers: 52)
Biological Psychology     Hybrid Journal   (Followers: 5)

        1 2 3 4 5 6 7 8 | Last

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Actualidades Biológicas
Number of Followers: 1  

  This is an Open Access Journal Open Access journal
ISSN (Print) 0304-3584 - ISSN (Online) 2145-7166
Published by SciELO Homepage  [672 journals]
  • Consumption of Melopsittacus undulatus (Shaw, 1805) (Psittaciformes,
           Psittacidae) by Sapajus cay Illiger, 1815 (Primates, Cebidae) in Midwest
           region of Brazil

    • Abstract: Abstract The interaction between native and exotic species can cause changes both in the food-chain and in aspects of competition for trophic resources, such as predation. Predatory events are common in nature, but difficult and usually recorded opportunistically. Here we present the first report of trophic interaction involving a species of exotic bird (Melopsittacus undulatus) and a species of native primate (Sapajus cay). Capuchin monkeys have already been recorded feeding on a wide variety of vertebrates, including frogs, lizards, birds, mammals, and even other species of primates. Although the record of the non-native M. undulatus in the state of Mato Grosso do Sul indicates a possible domestic escape, the record of predation may represent a beneficial trophic interaction for the ecosystem, preventing M. undulatus from becoming an invasive alien species. Studies are needed to assess what risks are posed by domestic species being preyed upon by native species.Resumen La interacción entre especies nativas y exóticas puede provocar cambios en la cadena trófica tanto en aspectos de competencia por recursos alimenticios, como en depredación. Los eventos depredadores son de naturaleza común, pero difíciles y oportunistas de registrar. Aquí presentamos el primer informe de interacción trófica que involucra una especie de ave exótica (Melopsittacus undulatus) y una especie de primate nativo (Sapajus cay). Ya se ha registrado que los monos capuchinos se alimentan de una amplia variedad de vertebrados, incluidas ranas, lagartos, aves, mamíferos e incluso otras especies de monos. Aunque el registro de M. undulatus en el estado de Mato Grosso do Sul indica una posible fuga doméstica, el registro de depredación puede representar una interacción trófica beneficiosa para el ecosistema, evitando que M. undulatus se convierta en una especie exótica invasora. Se necesitan estudios para evaluar qué riesgos plantean las especies domésticas que son depredadas por especies nativas.
       
  • Contribution to the knowledge of the crabs (Meiura: Decapoda) of the CEBUC
           Collection, with additional records in Colombia

    • Abstract: Resumen Las colecciones biológicas constituyen un registro de la historia natural de las diferentes regiones y brindan información relevante para diversas investigaciones científicas concernientes con sistemática, biogeografía, y biología de la conservación, entre otras. En las colecciones relacionadas con artrópodos de Colombia, los cangrejos (Decapoda: Anomura y Brachyura) están poco representados, a pesar de ser el segundo país con la mayor diversidad de cangrejos de agua dulce a nivel mundial y poseer numerosos representantes de especies marinas y semiterrestres, tanto del Atlántico como del Pacífico. La pequeña representatividad del grupo en colecciones biológicas puede deberse al número reducido de especialistas en el grupo y al número limitado de muestreos. El objetivo de este trabajo fue ampliar el conocimiento de los decápodos de Colombia mediante la revisión de los especímenes depositados en la colección CEBUC. Se encontraron 98 individuos distribuidos en 15 familias, 23 géneros y 22 especies. Los ejemplares revisados corresponden a la región Centro Occidental y costa atlántica de Colombia, en donde Caldas es el departamento mejor representado, con el 50 % de los registros. En este trabajo se registran ampliaciones altitudinales para la distribución de Hypolobocera bouvieri y Strengeriana fuhrmanni (Pseudothelphusidae). Además, se documentan ampliaciones en el rango de distribución para otras especies. Este trabajo constituye una fuente preliminar de información sobre la di‐ versidad de los cangrejos a nivel regional y enfatiza que la diversidad puede incrementarse substancialmente con la ampliación del número de investigaciones y la revisión de colecciones biológicas.Abstract Biological collections constitute a record of the natural history of different regions and provide relevant information for various scientific investigations related to systematics, biogeography, conservation biology, among others. In collections associated to arthropods in Colombia, crabs (Meiura) formed by the infraorders Anomura and Brachyura (Decapoda) are poorly represented, despite being the second country with the most diversity of freshwater crabs worldwide and having many representatives of marine and semi‐terrestrial species from the Atlantic and Pacific. The small representativeness of the group in the collections could be due to the small number of specialist researchers in the group and the small amount of samplings. The objective of this work was to expand the knowledge on decapods from Colombia through the review of the specimens deposited in the CEBUC collection. We found 98 individuals distributed in 15 families, 23 genera and 22 species. The material reviewed comes from the Central Western and Atlantic coastal region of Colombia, where Caldas is the best represented department, with 50% of the records. In this work altitudinal enlargements are registered for the distribution of Hypolobocera bouvieri and Strengeriana fuhrmanni (Pseu‐ dothelphusidae). In addition, expansions in the range of distribution are documented for other species. This work constitutes a preliminary source of information on the diversity of crabs (Meiura) at the regional level and reflects that diversity can increase substantially with the expansion of the number of investigations and the review of biological collections.
       
  • New permeability pathways in Plasmodium falciparum: considerations as a
           pharmacological target and advances in potential inhibitors

    • Abstract: Resumen Con base en la persistencia de los casos de malaria, dados por múltiples razones, entre las cuales se encuentra la resistencia de Plasmodium falciparum a los antimálaricos establecidos para su tratamiento, surge la necesidad de encontrar nuevos compuestos antimaláricos frente a otros blancos terapéuticos. En vista de ello, las Nuevas Rutas de Permeabilidad (NPP) han sido un objetivo promisorio y a partir de su descubrimiento, se han realizado diversos estudios enfocados en comprender su mecanismo y los componentes utilizados para el transporte de solutos y otras moléculas a través de la membrana del eritrocito. El objetivo de esta revisión de tema es presentar una recopilación de los estudios más significativos realizados en torno a las NPP. Para ello, se revisó la literatura para conocer el estado del desarrollo de las investigaciones referentes al tema, consultando bases de datos electrónicas y combinando los descriptores o palabras clave: (NPP AND malaria, AND Plasmodium falciparum AND inhibitors), además, se realizaron búsquedas secundarias en las listas de referencias bibliográficas de los artículos identificados. Luego de revisar los artículos de la literatura publicados entre los años 1980 y 2019, se concluye que muchos estudios han sido dedicados a la búsqueda de inhibidores de esta vía con fines terapéuticos y hay gran cantidad de moléculas candidatas como el híbrido MA-DFO y las diaminidas que han mostrado actividad en modelos de malaria tanto in vitro como in vivo.Abstract In malaria, the persistent resistance to antimalarial drugs by Plasmodium falciparum constitute a problem to world public health. New Permeability Pathways (NPP) are a promissory therapeutic target, because the parasite uses them to modify the membrane of the erythrocyte and make it permeable to various nutrients needed for its growth. We present a theme review where a compilation of various studies related to NPP, its importance and its inhibitors was made.
       
  • Butterflies (Lepidoptera: Papilionoidea) from Tierradentro, San Andrés de
           Pisimbalá, Cauca, Colombia

    • Abstract: Resumen Este trabajo es el primer registro sobre la caracterización de la diversidad de lepidópteros (Papilionoidea) en el Parque Arqueológico de Tierradentro, vereda de San Andrés de Pisimbalá, Inzá, Cauca, Colombia, considerada como una región ecoturística y de importancia cultural para el país. Se establecieron recorridos a lo largo de tres coberturas vegetales identificadas como bosque secundario, cultivos de pancoger y potrero. Para la recolecta de mariposas se emplearon dos métodos de muestreo, el primero con red entomológica y el segundo mediante el uso de trampas tipo Van Someren Rydon. Se registró un total de 128 especies, distribuidas en 99 géneros y cinco familias (Nymphalidae, Hesperiidae, Pieridae, Riodinidae y Lycaenidae). Las coberturas de bosque y cultivos presentaron la mayor diversidad, probablemente por la heterogeneidad vegetal observada. Adicionalmente, se encontró que el bosque presentaba algunas especies indicadoras que se asocian con buenos estados de conservación.Abstract This work is the first report on the characterization of Lepidoptera diversity (Papilionoidea) in Tierradentro Archaeological Park, San Andrés de Pisimbalá, Inzá, Cauca, Colombia, considered an ecotourism region of cultural importance for the country. Routes were established along secondary forest, pancoger crops and pastures. To collect Lepidoptera, two sampling methods were used, the first using an entomological net and the second using van Someren Rydon traps. A total of 128 species distributed in 99 genera and five families (Nymphalidae, Hesperiidae, Pieridae, Riodinidae and Lycaenidae) were collected. Forest cover and pancoger crops were the most diverse, probably due to the plant heterogeneity observed. Additionally, it was found that the forest presented some indicator species that are associated with good conservation states.
       
  • A look at the C3 and C5 proteins in the Covid-19

    • Abstract: Abstract The emergency caused by the new SARS-CoV-2 virus, which causes the Covid-19 disease, has triggered a global pandemic. One of the most characteristic factors of SARS-CoV-2 virus infection is the deregulated activation of the complement system, especially by proteins C3 and C5. These proteins trigger initiation reactions such as maintenance of inappropriate biological activities in addition to uncontrolled immune responses by immune cells, especially neutrophils. They generate various pathologies such as acute stroke, heart attack, coagulopathies, multiorgan failure, inflammation, immunothrombinosis, heart failure, acute kidney injury, acute injuries in the lung area, thrombotic microangiopathy, pneumonia, and dysfunctional immune responses. Because of the crucial role played by proteins C3 and C5 in the infection by the SARS-COV-2 virus, new complement system inhibition treatments have emerged as a possible first line of defense against the worst symptoms developed during Covid-19 disease. This article will review in a general way, the role of C3 and C5 proteins and the treatments aimed at the inhibition of these same proteins during SARS-CoV-2 infection.Resumen La emergencia causada por el nuevo virus SARS-CoV-2, causante de la enfermedad Covid-19, ha desencadenado una pandemia a nivel global. Uno de los factores más característicos de la infección por el virus SARS-CoV-2, es la activación desregulada del sistema del complemento, especialmente por parte las proteínas C3 y C5. Estas proteínas desencadenan reacciones de iniciación y de mantenimiento de actividades biológicas inadecuadas, además de respuestas inmunitarias descontroladas por parte de las células inmunes, en especial los neutrófilos. Generan diversas patologías como: accidente cerebrovascular agudo, ataque al corazón, coagulopatías, falla multiorgánica, inflamación, inmunotrombinosis, insuficiencia cardíaca, lesión renal aguda, lesiones agudas en el área pulmonar, microangiopatía trombótica, neumonía, y respuestas inmunes disfuncionales. Debido al rol crucial que presentan las proteínas C3 y C5 en la infección por el virus SARS-COV-2, nuevos tratamientos de inhibición del sistema del complemento han emergido como una posible primera línea de defensa contra los peores síntomas desarrollados durante la enfermedad Covid-19. En este artículo se revisará de manera general, el rol de las proteínas C3 y C5 y los tratamientos dirigidos a la inhibición de estas mismas proteínas durante la infección por SARS-CoV-2.
       
  • Notes on the Diet and Habitat of Antioquia Brush-finch Atlapetes
           blancae
    (Passerellidae)

    • Abstract: Resumen Parte de los datos más relevantes y básicos para implementar medidas de conservación enfocadas en una especie, requieren de no más que un metódico registro de las observaciones. Presentamos los datos de dieta y estrategias de forrajeo de Atlapetes blancae, recopilados entre diciembre de 2018 y enero de 2020 en San Pedro de los Milagros, Santa Rosa de Osos y Llanos de Cuivá en Yarumal, Antioquia, Colombia. Presentamos también una descripción de su hábitat y comentarios sobre las estrategias posibles para implementar acciones de conservación. Esta información no solo aporta al conocimiento biológico de la especie, sino que también ofrece información crucial sobre la vegetación relacionada con A. blancae para que sea incluida en acciones de restauración ecológica, evitando así la pérdida del hábitat de esta ave endémica que se encuentra en la categoría máxima de amenaza a la extinción.Abstract Some of the most relevant and basic data for implementing species-focused conservation measures require nothing more than a methodical record of observations. We present data on the diet and feeding strategies of Atlapetes blancae collected between December 2018 and January 2020 in San Pedro de los Milagros, Santa Rosa de Osos, and Llanos de Cuivá in Yarumal, Antioquia, Colombia. We also present a description of their habitat and comments on possible strategies to implement conservation actions. This information not only contributes to the biological knowledge of the species, but also offers crucial information about the vegetation related to A. blancae so that it can be included in the ecological restoration actions and thus avoid the loss of the habitat of this endemic bird that is in the highest category of threat of extinction.
       
  • Evaluation of treatments for propagation of ceiba barrigona (Cavanillesia
           chicamochae), morphology and phenology the seed

    • Abstract: Resumen El bosque seco tropical (bs-T) es uno de los ecosistemas más amenazados del planeta, como consecuencia de la presión antrópica. En el enclave subxerofítico del cañón del Chicamocha habita Cavanillesia chicamochae, especie endémica y amenazada que presenta poca supervivencia de sus plántulas, afectando la regeneración de sus poblaciones. El presente estudio evaluó la germinación de C. chicamochae con frutos, semillas y estacas, utilizando tres sustratos diferentes. Se emplearon tres tratamientos, los cuales consistieron en diferentes sustratos: T1: arena de río; T2: tierra negra; T3: mezcla 3/4 tierra -1/4 cascarilla de arroz y se utilizaron frutos, semillas desnudas y estacas. Se implementó un diseño completamente aleatorio con tres sustratos incluyendo frutos y semillas y se realizaron cuatro réplicas. Las variables analizadas se sometieron a un ANOVA; cuando las diferencias fueron significativas (p<0,05), además se desarrolló un análisis de medias utilizando la prueba de rangos múltiples de Duncan. El porcentaje de germinación por semilla y fruto presentó diferencias significativas; el tratamiento de mayor eficiencia fue T1 (71%-semillas y 54%-frutos). Las semillas almacenadas en condiciones ambientales perdieron su viabilidad a partir de los cuatro meses. El mucílago presentó un adecuado valor bromatológico para la alimentación de rumiantes e importantes contenidos en metabolitos secundarios, con usos potenciales en el área farmacéutica, siendo un valor agregado para la especie. El estrés hídrico selecciona características de conservación del agua para garantizar la sobrevivencia de especies en el tiempo, una mejor comprensión de estas estrategias ayudará a predecir respuestas ante futuras sequías.Abstract The tropical dry forest (bs-T) is one of the most threatened ecosystems on the planet, because of anthropic pressure. The subxerophytic enclave of the Chicamocha canyon is inhabited by Cavanillesia chicamochae, an endemic and threatened species that has little survival of its seedlings, affecting the regeneration of its populations. In the present study, the germination of C. chicamochae was evaluated with fruits, seeds, and cuttings, using three different substrates. Three treatments were used, which consisted of different substrates: T1: river sand; T2: black earth; T3: mix 3/4 soil -1/4 rice husk and fruits, bare seeds and cuttings were used. A completely randomized design was implemented with three substrates including fruits and seeds and four replicas were performed. The variables analyzed were subjected to an ANOVA, when the differences were significant (p<0.05), in addition an analysis of means was developed using Duncan's multiple range test. The germination percentage per seed and fruit showed significant differences (p<0.05), the treatment with the highest efficiency was T1 (71%-seeds and 54%-fruits). Seeds stored under ambient conditions lost their viability after four months. The mucilage presented an adequate bromatological value for the feeding of ruminants and important contents in secondary metabolites, with potential uses in the pharmaceutical area being an added value for the species. Water stress selects water conservation characteristics to guarantee the survival of species over time, a better understanding of these strategies will help predict responses to future droughts.
       
 
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