Search

Background and aims: Salix fragilis is a non-native invasive tree that causes alterations in Patagonian streambanks. The revegetation with native species may favor the recovery of biodiversity, it is therefore necessary to find a species capable of coexisting with this disturbance. The native shrub Ochetophila trinervis might be an option, because saplings can be produced in nurseries, plants have a high resprout capacity and roots are associated with symbiotic nitrogen-fixing actinobacteria; qualities that make the species resilient in altered environments. The aim of this work was to analyze the plantation success with O. trinervis plants in streambanks invaded by S. fragilis. M&M: The establishment of O. trinervis saplings was studied for two years in the field, in three patches under different riparian vegetation conditions: native shrubs, S. fragilis with intervention (with thinning and pruning), and S. fragilis without intervention. Results: The survival of O. trinervis was close to 90% one month after planting, then it decreased to 40% in the second summer in both conditions with S. fragilis and to 10% in that of native shrubs. The diameter of the neck (DAC) relative to pre-planting was four times greater in the intervened S. fragilis patch than in the native shrubland, in the first summer. The dry weight of leaves and roots was also greater in these patches. The diameter of the neck and the height of the plants were related to field survival, and both the ecophysiological indicators and aspects of nodulation presented different relationships. Conclusions: The invaded streambanks with S. fragilis were favorable for the establishment of O. trinervis, so revegetation of invaded patches might be possible to manage this problem. [ABSTRACT FROM AUTHOR]

Copyright of Revista Colombiana de Cardiología is the property of Publicidad Permanyer SLU and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Pemphigus erythematosus (PE) is a rare disorder that belongs to a group of chronic autoimmune blistering diseases. It is a form of pemphigus with an overlapping clinical and immunological presentation of pemphigus foliaceus and lupus erythematosus, mediated by autoantibodies targeting desmoglein 1. It has a broad clinical spectrum, and severe cases can result in multi-organ compromise. To date, there is no established treatment for severe cases of PE. We describe a case of a previously healthy patient with a 4-month clinical course of generalized painful erythematous desquamative plaques and blisters, associated with a 10 kg weight loss. The clinical and histopathological findings were consistent with PE. An adjusted rituximab protocol was used, achieving disease remission within 20 days. Rituximab is the mainstay of therapy and a well-known effective treatment for pemphigus vulgaris with a prolonged remission; nevertheless, there are no established protocols and limited evidence in PE. [ABSTRACT FROM AUTHOR]

Copyright of Formación Universitaria is the property of Centro de Informacion Tecnologica (CIT) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Ciencias Economicas is the property of Universidad Nacional del Litoral and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The primary objective of this research study is to assess training programs as a tool for strengthening a Mexican company's cybersecurity. Cybersecurity has become a critical issue for organizations in the digital era. The research design adopted a quantitative approach with a non-experimental cross-sectional nature. The results revealed that the majority of the company's employees (52.1%) consider that they have the knowledge necessary about the cybersecurity threats that they may face, but the rest do not consider they have that knowledge. In addition, in spite of cybersecurity being a priority for the organization, employees lack sufficient training to help them mitigate the threats they confront. It is concluded that it is necessary to conduct training and awareness programs on security by developing policies, by defining resources and tools, by creating campaigns against cyber-attacks and by implementing online or in-person training. [ABSTRACT FROM AUTHOR]

Copyright of Acta Zoologica Lilloana is the property of Fundacion Miguel Lillo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cirugía Plástica Ibero-Latinoamericana is the property of Cirugia Plastica Ibero-Latinoamericana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Ciencias Economicas is the property of Universidad Nacional del Litoral and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Scientific knowledge may present taxonomic, geographic and thematic biases, which could have negative consequences on conservation decisions, especially in highly threatened groups such as amphibians. This work aimed to explore the scientific production of anurans from Argentina during the 2010-2020 decade, to understand the current state of knowledge and identify possible biases and information gaps. Our results showed that the production of scientific knowledge on anurans from Argentina remained constant during the studied period. Nonetheless, we observed taxonomic, geographic and topic biases. The number of studies was higher in areas with higher human population density and on topics related to morphology, as well as for common species with medium body sizes, general habits, with a broad geographic distribution, and occurring in rural-urban areas. Our results represent a baseline to clarify and evidence the different biases of scientific knowledge about anurans from Argentina. [ABSTRACT FROM AUTHOR]

Copyright of Ecologia Austral is the property of Asociacion Argentina de Ecologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Ciencias Economicas is the property of Universidad Nacional del Litoral and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Estuaries are productive ecosystems that provide ecosystem goods and services, although human development causes stresses that deteriorate the quality of their waters. The Río de la Plata river presents geographic and socioeconomic relevance, besides areas of importance in the conservation of biodiversity. The objective of this study was to analyze some of the structural and functional characteristics of the meso and macroinvertebrate assemblage along 155 km of the freshwater intertidal zone, applying multivariate analysis and comparing the sampling sites subject to different types of anthropogenic disturbances. Fifty-eight taxa were identified whose total abundance ranged from 570 to 345000 individuals/m2. The highest values of richness, structural and functional diversity, and percentages of sensitive taxa were recorded in recreational areas that have vegetated coasts, a high degree of connectivity and a natural state of riparian habitats. The multivariate analysis organized the sampling sites along a turbidity-conductivity gradient and a eutrophication-contamination gradient. The cluster analysis revealed the following groups: 1) sites with little impact of protected and recreational areas, 2) sites with anthropogenic impact and domestic discharges, 3) sites highly impacted by industrial and sewage discharges, and 4) sites located close to the front of maximum turbidity. These results showed that the characteristics of the habitat and the water determine the assemblages of invertebrates. The structural and functional descriptors analyzed can act reliably in the evaluation of the ecological quality and the biotic integrity of the Argentinian intertidal sector of the river. [ABSTRACT FROM AUTHOR]

Copyright of Revista de Salud Pública is the property of Universidad Nacional de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Formación Universitaria is the property of Centro de Informacion Tecnologica (CIT) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tecnología y Ciencias del Agua is the property of Instituto Mexicano de Tecnologia del Agua (IMTA) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de la Asociación Odontológica Argentina is the property of Asociacion Odontologica Argentina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ayer: Revista de Historia Contemporánea is the property of Asociacion de Historia Contemporanea and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cirugía y Cirujanos is the property of Publicidad Permanyer SLU and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of HiSTOReLo: Revista de Historia Regional y Local is the property of Universidad Nacional de Colombia, Centro Editorial Facultad de Ciencias Humanas y Economicas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Ciencias Economicas is the property of Universidad Nacional del Litoral and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Paraffinization is a conservation technique for cadaveric anatomical pieces. This article seeks to expose an appropriate protocol of the human brain paraffinization to facilitate the study of human anatomy; this process was carried out in the medical faculty of the Universidad Militar Nueva Granada and was developed through steps of fixation, dehydration, clarifying and paraffinization of three brains. It is concluded that the protocol used allows to preserve the anatomical pieces satisfactorily, preserving structures of the brain such as: convolutions, corpus callosum and cerebellum. [ABSTRACT FROM AUTHOR]

Copyright of Revista Sociedad Colombiana de Oftalmología is the property of Sociedad Colombiana de Oftalmologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cirugía y Cirujanos is the property of Publicidad Permanyer SLU and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

T lymphocytes (or T cells) are characterized by having an essential role in the control of acute viral infections. SARSCoV-2 infection is an acute viral infection that mainly affects the respiratory tract causing COVID-19 disease, which presents with mild, moderate and critical symptoms that can lead to the death of the patient. The induction of populations of CD4+ and CD8+ T cell with a functional memory phenotype could be decisive in the control of viral replication and therefore be determinants in the course of the disease. In this opinion article, we will review the reported evidence regarding the presence, phenotype, and function of circulating T cell populations and the site of infection to understand their possible role in controlling viral replication, in the severity of the disease, and the importance of T-cell-mediated protection in the development of vaccines against SARS-CoV-2 infection. [ABSTRACT FROM AUTHOR]

Copyright of Cirugía y Cirujanos is the property of Publicidad Permanyer SLU and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Espacios is the property of Talleres de Impresos Oma and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Médica Peruana is the property of Colegio Medico del Peru and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of E-Gnosis is the property of Universidad de Guadalajara, Coordinacion General Academica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Ciencias Economicas is the property of Universidad Nacional del Litoral and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of TE & ET: Revista Iberoamericana de Tecnología en Educación y Educación en Tecnología is the property of School of Computer Science, La Pata University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Universidad & Empresa is the property of Colegio Mayor de Nuestra Senora del Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Ciencias Economicas is the property of Universidad Nacional del Litoral and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cuadernos de Herpetología is the property of Asociacion Herpetologica Argentina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Economía Institucional is the property of Universidad Externado de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The present investigation is focused on the implementation of alkaline activated fly ash as a total replacement of Portland cement in the manufacture of prefabricated tablets. The experimental program included the physico-chemical characterization of raw materials, finding the optimum alkaline activator/fly ash ratio and mechanical tests of compressive strength and rupture modulus. Additionally, a comparison of the carbon footprint of a batch of prefabricated tablets made from Portland cement mortar and fly ash was also performed. The activation of the fly ash was carried out by means of the combination of alkaline activators composed of NaOH and Na2SiO3. The results obtained showed that fly ash mortars have good mechanical properties and environmental viability in terms of carbon footprint. The fly ash can be used in the industry of prefabricated tablets as an option of lower environmental impact with optimal resistance to compression and rupture modulus. [ABSTRACT FROM AUTHOR]

Copyright of Revista Colombiana de Ciencias Pecuarias is the property of Universidad de Antioquia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Mexicana de Neurociencia is the property of Academia Mexicana de Neurologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)