An addition to the diversity of dendrobatid frogs in Venezuela: description of three new collared frogs (Anura: Dendrobatidae: Mannophryne)

Three new species of collared frogs of the genus Mannophryne are described from Venezuela. Two are newly discovered taxa from the Venezuelan Andes, whereas the third species, previously confused with M. trinitatis, is from the Caracas area in the Cordillera de la Costa. The call of the three new species and that of Mannophryne collaris are described. Taxonomic, zoogeographic, and conservation issues are discussed

Walter Benjamin and William Corsaro's Contributions to a Human Rights Education Approach with Children

Purpose: This paper aims to discuss Walter Benjamin's Critical Theory and William Corsaro's Sociology of Childhood contributions to a Human Rights Education approach with children. Our intent is to investigate how children’s personal experiences can enrich the construction of a differentiated pedagogical model, based on the promotion of attitudes and values infused in the human rights tradition. Approach: We address this paper to a reflection on the expressions of agency, social engagement, and cultural productions in the course of childhood. Findings: Our thesis is that Human Rights Education has to recognize the different ethical lives, or subcultures, that compose each educational environment, assuring children’s autonomy and social protagonism in the process of identifying human rights violations and organizing strategies to assure social justice

Descripción de una nueva especie de Allobates (Anura, Dendrobatidae) del Este del piemonte andino, Venezuela

Describimos un nuevo sapito niñera del género Allobates (Dendrobatidae) proveniente de Río Negro, Municipio Córdoba, Estado Táchira, oeste de Venezuela. Esta nueva especie es habitante terrestre de bosque tropical primario y secundario en tierras bajas y medias entre los 400 y 1000 msnm. La nueva especie es similar a especies del grupo de Allobates marchesianus y su distribución se restringe a las faldas occidentales de los Andes Venezolanos. Difiere de sus congéneres por su patrón dorsal manchado irregularmente, con línea oblicua lateral difusa, línea ventro-lateral presente, y vientre de color amarillo en los machos.We describe a new nurse frog in the genus Allobates (Dendrobatidae) from Río Negro, Municipio Córdoba, Estado Táchira, in western Venezuela. This species is a leaflitter inhabitant of primary and secondary lowland rainforest at altitudes from 400 to 1000 m. The new species is similar to the species in the Allobates marchesianus group and is restricted to the slopes of the western Venezuelan Andes. It differs from its congeners by having an irregularly spotted dorsal pattern, diffuse oblique lateral stripe, ventrolateral stripe and yellowish belly on males.Descrevemos aqui uma nova espécie de anuro do gênero Allobates (Dendrobatidae) proveniente de Río Negro, Município de Córdoba, Estado de Táchira, oeste da Venezuela. Trata-se de um anfíbio terrestre que habita a floresta tropical primária e secundária de baixas e médias altitudes, entre 400 e 1000 m. A nova espécie é similar àquelas do grupo de Allobates marchesianus, e sua distribuição geográfica se restringe às encostas ocidentais dos Andes venezuelanos. Difere de seus congêneres por seu padrão dorsal com manchas irregulares, com linha lateral oblíqua difusa, linha ventro-lateral presente e ventre amarelo nos machos

Choosing audio devices on the basis of listeners’ spatial perception: A case study of headphones vs in-earphones

The Earphones and Headphones industry is steadily growing following the emergence of new technological advancements and new applications. New methods to determine listeners’ performance using different types of audio output devices will be in high demand. In this paper we adapt a methodology for evaluation of listeners’ auditory localization accuracy to support the choice between two devices. As a case study, we compare a particular set of in-earphones and headphones. Our goal was to present a method that allowed us to: (1) conclude which audio device provided the most accurate sense of auditory localization; (2) understand the effect of training on task performance; and (3) determine which type of device benefits the most from short sessions of training in auditory localization. Participants had better performances using headphones. Nevertheless, we can reduce the differences between devices if short training sessions are included and the same device is used between training and test.info:eu-repo/semantics/publishedVersio

Diseño general del Programa de Monitoreo de la Biodiversidad

Fil: Juárez, Marcos César Nicolás Santos. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Aguerre, Gimena. Equipo de análisis e integración del programa de Monitoreo de la Biodiversidad en Camisea; PerúFil: Trucco, Carlos. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentin

Carcinoma de células escamosas da cabeça em gato : caracterização com recurso a tomografia

Dissertação de Mestrado Integrado em Medicina VeterináriaO Carcinoma de Células Escamosas (CCE) no gato é das neoplasias cutâneas malignas mais comuns nesta espécie. Com origem nos queratinócitos, o CCE afeta, essencialmente, gatos idosos entre os 9 e os 14 anos de idade, com maior predisposição em gatos com pelagem branca. São fatores intrínsecos no aparecimento de CCE: a idade, a presença de dermatite crónica e a tonalidade clara da pele e/ou a presença de zonas sem revestimento piloso. Quanto a fatores extrínsecos, identificam-se: a infeção por Papiloma Vírus Felino (FPV) e a exposição a radiação Ultravioleta (UV). É um tumor maligno com comportamento de invasão local, podendo, no entanto, metastizar tardiamente. O prognóstico depende muito da precocidade de deteção e terapêutica efetuada. A análise efetuada nesta dissertação tem como objetivo analisar e discutir diferentes parâmetros que estão identificados como fatores de risco CCE e verificar se a amostra analisada está de acordo com o referido na bibliografia. Deste modo, foi feito um estudo retrospetivo numa população de 34 gatos, diagnosticados com CCE no Hospital Veterinário de Berna (HVB), entre 2017 e 2019, onde foram descritas variáveis relativas ao indivíduo (idade, raça, sexo, cor da pelagem e comorbilidades já existentes e/ou detetadas no momento do diagnóstico de CCE); características relativas ao tumor (método de diagnóstico, quantificação de tumores primários e recidivas, localização, tamanho, comportamento metastático local, regional e à distância, estadiamento e tratamento efetuado); e fatores como resposta à terapêutica/remissão tumoral, adesão à terapêutica por parte do tutor, decisão de eutanásia ou interrupção do tratamento. Verificou-se que a maioria das conclusões relativas à população em estudo se encontram de acordo com o referido na literatura. Apesar de ser uma neoplasia maligna, o CCE apresenta um bom prognóstico, quando detetado precocemente, com baixo índice de metastização e possibilidade de cura total, no qual a tomografia se apresenta como um método de diagnóstico fundamental a todo o processo oncológico.ABSTRACT - SQUAMOUS CELL CARCINOMA OF THE HEAD IN CAT: CARACTERIZATION BY TOMOGRAPHY - Squamous cell carcinoma (SCC) in cats is one of the most common malignant skin neoplasms in this species. Originating from keratinocytes, SCC develops, especially, in old cats between 9 and 14 years of age, with a much higher predisposition in cats with white fur. SCC is linked with intrinsic factors from the patient, such as age, the presence of chronic dermatitis, the light tone of the skin and/or the presence of areas without a hairy coat. In addition, there are extrinsic factors such as infection by Feline Papilloma Virus (FPV) and/or Ultra Violet (UV) radiation. It is a malignant tumor with local invasion behavior, which may metastasize later. The prognosis depends mainly on early detection and the therapy performed. The analysis carried out in this dissertation aims to focus on different parameters that are studied as risk factors in the SSC and to verify if the our sample follows the traits referred in the bibliography. Thus, an retrospective study was made in a population of 34 cats, diagnosed with SCC in Hospital Veterinário de Berna, from 2017 to 2019, where variables related to the individual were described (age, breed, sex, coat color and comorbidities already existing and/or detected at the time of the diagnosis of SCC); characteristics related to the tumor (diagnostic method, quantification of primary tumors and recurrences, location, size, local, regional and distance metastatic behavior, staging and treatment performed). Factors such as response to therapy/tumor remission, compliance by the owner, decision to euthanize or discontinue treatment was also analysed and it was found that most conclusions regarding the population are in line with what has been studied in the literature. Despite of being a malignant neoplasm, the SCC has a good prognosis, when detected early, with a low rate of metastasis and the possibility of total cure. Tomography represents the key diagnosis method for the oncologic process.N/

Utilização do OTRS para gerenciamento de requisições segundo a ITIL

Trabalho de Conclusão de Curso (Graduação)Devido à crescente dependência entre as empresas e suas áreas de TI, tem-se notado um grande aumento na utilização do ITIL para gestão de processos de TI.Este trabalho tem por objetivo demonstrar o uso do sistema OTRS para gestão de serviços de TI utilizando as boas práticas para entrega de serviços sugeridas pelo ITIL, de modo que as empresas possam proporcionar maior entrega de valor para seus clientes

The impacts airising from the COVID-19 pandemic on supply chains

The global COVID-19 pandemic brought about unimaginable consequences for businesses, with lockdown, quarantine and social isolation causing the closure of borders, factories and stores in several countries, which ultimately locked down the most diverse supply chains, demonstrating an important characteristic of society today: supply chains are highly dependent. Business analysts are citing that the effects of the COVID-19 pandemic on supply chains are unprecedented in recent business history, something that can be visualized with supply chains becoming partially paralyzed as a result of official measures to prevent the pandemic from spreading at a speed that health systems cannot meet. However, some academic works have already warned of the danger of business concentration in specific regions of the planet, where the main focus is the low cost of production, without addressing strategic objectives or focusing on strategic products. This work proposes a reflection on the location of suppliers in certain geographical areas, as this implies the use of long supply chains, proposing an alternative for the creation and planning of shorter supply chains for products that are classified as strategic

Estudo da utilização de polissacarídeos no desenvolvimento de formulações de liberação prolongada: goma de semente de algaroba, goma xantana e quitosano

O objetivo deste trabalho foi o desenvolvimento de novos sistemas de matrizes hidrofílicas através da formação de ligações cruzadas (cross-linking) entre a Goma da Semente da Algaroba (GSA), uma galactomanana que ocorre no endosperma das sementes de uma árvore nativa do Brasil, a Prosopis juliflora DC, e dois polissacarídeos bem conhecidos pela sua habilidade de retardar a liberação de fármacos, quitosano e goma xantana, visando a utilização das novas substâncias na preparação de formas orais de liberação prolongada. O estudo iniciou com a avaliação da funcionalidade GSA como matriz hidrofílica. A seguir, iniciamos o estudo do perfil de absorção de água dos polímeros envolvidos (GSA, Quitosana e goma xantana), nos seguintes meios: água, SGF e SIF. Na etapa seguinte, procuramos pelo melhor agente formador de ligação cruzada, entre os dois encontrados em literatura, glutaraldeído (GA) e hexametilenodiisocianato (HMDI). Sendo que a GA se apresentou como o melhor agente pelos resultados apresentados. O próximo passo foi a preparação e avaliação de novas matrizes hidrofílicas de GSA_Quitosana e GSA_Goma Xantana, com proporções diferentes, 1:1, 1:2 e 2:1. Finalmente, após a escolha do sistema hidrofílico que apresentou os melhores resultados, utilizando as ferramentas estatísticas, investigamos o mecanismo de controle da liberação do fármaco modelo. Por fim concluímos que a melhor combinação de polissacarídeos foi conseguida com a GSA e a goma xantana, na proporção de 1:2, utilizando solução de glutaraldeído como agente de formação de ligação cruzada. Esta nova matriz apresentou cinética de ordem zero, que é fundamental em uma substância a ser utilizada em formulações orais sólidas de liberação prolongada.The aim of this work was to design new hydrophilic matrix (HM) systems by cross-linking Mesquite Seed Gum (MSG), a galactomannan that occurs in the endosperm layer of the seeds of a Brazilian tree,Prosopis juliflora DC, with two well-known polysaccharides with the ability of retarding drug release, chitosan and xanthan gum. This had in mind the idea of using these new compounds in the preparation of extended-release dosage oral forms. The first part of this study was dedicated to the evaluation of MSG in terms of its functionality as a hydrophilic matrix (HM) system for extended-release purposes. Next, we started the study of water uptake profile of all polymers of interest (MSG, Xanthan Gum and Chitosan), in the following media: water, SGF and SIF. Following, we searched for the best cross-linking agent between Glutharaldehyde (GA) and Hexamethylenediisocyanate (HMDI), which turned out to be the GA. Next step we begun to prepare new hydrophilic matrices of MSG_Chitosan and MSG_Xanthan Gum, with different ratios, 1:1, 1:2 and 2:1. Finally, after deciding which new HM system presented best results, by using statistics tools, we investigated the mechanism controlling the rate release of the model drug, from tablets made with this new matrix. As a final result we concluded that the best combination of polysaccharides was achieved with MSG and Xanthan Gum, with mass ratio of 1:2, using glutharaldehyde aqueous solution as cross-linking agent. It presented a prevalent zero order kinetics, which is a very important feature when thinking about an extended-release oral dosage

The wetted area uniformity of the rainfall generated by different sprinkler nozzles / Identificação da uniformidade de chuva simulada por diferentes sistemas aspersores

Since the 1930s several conceptions of rainfall simulators were developed to perform runoff experiments, soil water infiltration, water erosion, persistence of phytosanitary products, etc. The uniformity of the rainfall generated is a parameter used to validate a rainfall simulator conception design. On this subject, this work aimed at identifying the wetted area uniformity of the rainfall generated by different sprinkler nozzles. The study was divided in two stages: experimental data collection; and, calculation of wetted area uniformity. In the first stage it was used an experimental bench to generate rainfall. The experiment was carried out under completely randomized, factorial 3 x 3 x 3 experimental design, with 27 treatments and six replications (162 experimental units). The treatments were a combination of three sprinkler nozzles (P1, P2 and P3), three sprinkler heights from the ground (1.1 m, 2.1 m and 3.1 m), and three water pressures (50 kPa, 100 kPa and 150 kPa). A mesh of 289 plastic collectors was used for stored the water volume of the rainfall generated from the experimental units. In the second stage, it was calculated the water distribution uniformity using the Christiansen Uniformity Coefficient (CUC) for the areas of 2.56 m², 1.44 m², 0.64 m² and 0.16 m². As a result, the higher the water pressure and sprinkler nozzle height and smaller the land plot, the greater the tendency to get CUC values classified as good or excellent. The sprinkler nozzle P1 showed the best results, so the conclusion is the wetted area uniformity is an important parameter to consider in the selection of sprinkler nozzles in the rainfall simulators design