Characterizing Attention Cascades in WhatsApp Groups

An important political and social phenomena discussed in several countries, like India and Brazil, is the use of WhatsApp to spread false or misleading content. However, little is known about the information dissemination process in WhatsApp groups. Attention affects the dissemination of information in WhatsApp groups, determining what topics or subjects are more attractive to participants of a group. In this paper, we characterize and analyze how attention propagates among the participants of a WhatsApp group. An attention cascade begins when a user asserts a topic in a message to the group, which could include written text, photos, or links to articles online. Others then propagate the information by responding to it. We analyzed attention cascades in more than 1.7 million messages posted in 120 groups over one year. Our analysis focused on the structural and temporal evolution of attention cascades as well as on the behavior of users that participate in them. We found specific characteristics in cascades associated with groups that discuss political subjects and false information. For instance, we observe that cascades with false information tend to be deeper, reach more users, and last longer in political groups than in non-political groups.Comment: Accepted as a full paper at the 11th International ACM Web Science Conference (WebSci 2019). Please cite the WebSci versio

Business plan: an innovative start-up in the Portuguese mobility for the electric and solar sector

A mobilidade é um dos fenómenos que muitos especialistas tendem a estudar e explicar. Por vezes esta é relacionada com a zona de residência das pessoas ou pelo sistema de transportes que existem nas cidades. Assim, acaba por implicar que existam soluções para as atividades do dia-a-dia. E dentro da mobilidade o autor centra-se exclusivamente na mobilidade elétrica e na mobilidade solar. A primeira é já uma realidade enquanto que a segunda é uma realidade futura. Contudo algumas empresas têm um certo grau de incerteza relativamente a este novo tipo de tecnologias para os veículos. Existem soluções para ambas. E a Electro-Solar Mobility Solutions quer continuar a oferecer essas e outras soluções para estes mercados tais como a (i) venda de energia elétrica; (ii) a venda dos sistemas modulares; (iii) o aluguer e manutenção das baterias; (iv) a venda de peças e outros acessórios; (v) a solução Charge & Go; (vi) o desenho e o desenvolvimento de veículos solares ligeiros e pesados. Este projeto ainda carece de investigação futura e outras soluções poderão aparecer no mercado. Esta é uma aposta importante para os dias de hoje em torno de um tema tão importante como é a mobilidade.Mobility is one of the phenomena that many specialists tend to study and explain. Sometimes it is related with the area of residence of the citizens or by the existent transport systems. Therefore, it will always imply the existence of solutions for the daily basis activities. Regarding Mobility, the author focus exclusively on the electric and solar mobility. The first one is already a reality whereas the second one is a future reality. However, some companies have an uncertainty level about this new type of vehicle technology. There are solutions in the market for both types of Mobility. Electro-Solar Mobility Solutions (EMS) wants to provide those and other solutions for these markets such as (i) sale of electricity; (ii) sale of modular systems; (iii) renting and maintenance of batteries; (iv) sale of parts and other accessories; (v) Charge & Go solution; (vi) design and development of light and heavy solar vehicles

A força normativa dos objetivos de desenvolvimento sustentável 9 e 12 na responsabilidade socioambiental das empresas

O presente artigo pretende verificar a força normativa dos Objetivos de Desenvolvimento Sustentável (ODS) de nº 9 e 12 da Organização das Nações Unidas (ONU) criadas em 2015 e sua aplicação na responsabilidade socioambiental das empresas. O objetivo central é o de concluir se somente o acordo, que versa sobre as ODS, firmado pelas Nações Unidas e os países signatários, seria suficiente para produzir seus efeitos quanto à responsabilidade socioambiental das empresas no Brasil. Para tanto, foi utilizada a metodologia analítica-descritiva de normas e doutrinas. Ao final da pesquisa evidencia-se que somente a existência de normas internacionais não garante a sua aplicação no Brasil.Palavras-chave: Objetivos de Desenvolvimento Sustentável (ODS); Responsabilidade socioambiental; Sustentabilidade nas empresas.   

Análise morfométrica do forame mandibular em gatos domésticos (Felis catus, Linnaeus 1758) sem raça definida

Objetivou-se, avaliar morfometricamente o forame mandibular, em gatos sem raça definida, visando ainda estabelecer de forma mais precisa sua topografia, com vistas a oferecer subsídios para um bloqueio anestésico local mais efetivo do nervo alveolar mandibular. Foram utilizados 30 gatos domésticos (Felis catus) adultos, 5 machos e 25 fêmeas, sem raça definida. Após a coleta e o preparo das mandíbulas, com auxílio de um paquímetro milimetrado tipo universal, foram mensurados 6 pontos de referência, LONG (da borda mais lateral do processo condilar até o primeiro dente incisivo inferior); TRANS (da borda ventral até a borda dorsal da mandíbula entre o segundo dente pré-molar e o primeiro dente molar inferiores); FVENTRAL (da borda mais rostral do forame mandibular até a borda ventral da mandíbula); ANG (da extremidade da borda mais rostral do forame mandibular até o processo angular da mandíbula); COND (extremidade da borda mais rostral do forame mandibular até a borda medial do processo condilar da mandíbula) e COR (da borda mais rostral do forame mandibular até a borda medial do processo condilar da mandíbula). Em seguida os dados obtidos foram submetidos à análise estatística descritiva e ainda aplicou-se o teste T de Student com p=0,05 onde observou-se que para um melhor bloqueio anestésico local do nervo alveolar inferior a agulha deverá ser introduzida de 4,1 a 4,4 mm da borda ventral da mandíbula e entre 12,37 a 12,57 mm partindo do processo angular.The objective of this work was to perform a morphometric evaluation of the mandibular foramen of cats with no defined breed in order to establish its more precise topography and to offer subsides for a more effective local anesthetic blockage of the mandibular alveolar nerve. Thirty adult cats (Felis catus) (5 male and 25 female) with no defined breed were used. After collection and preparation of mandibles with the aid of a universal caliper rule, the 6 reference points were measured: LONG (from the most lateral margin of the condylar process up to the first inferior incisor tooth); TRANS (from the ventral margin up to the dorsal mandible margin between the second premolar tooth and the first inferior molar tooth); FVENTRAL (from the most rostral margin of the mandibular foramen up to the ventral mandibular margin); ANG (from the end of the most rostral margin of the mandibular foramen up to the mandible angular process), COND (from the end of the most rostral margin of the mandibular foramen up to the medial margin of the mandible condylar process) and COR (from the most rostral margin of the mandibular foramen up to the medial margin of the mandible condylar process). Following, the data obtained were submitted to descriptive statistical analysis and to the student’s t-test with p = 0.05. It was observed that for a better local anesthetic blockage of the inferior alveolar nerve, the needle should be introduced 4.1 to 4.4 mm from the mandible ventral margin and 12.37 to 12.57 mm from the angular process

Implication of the changing concept of genes on plant breeder’s work

The recent genome sequencing of some species has accumulated evidence that for a large number of traits, thecontrol and action of genes are far more complex than previously thought. This article discusses possible implications of newinsights into the gene concept on the work of plant breeders. Apparently, the successful application of biotechnological techniques is not as simple as once assumed. The evident changes in the available concept of genes confirmed what the past experience had shown,i.e, selection should focus on the phenotype, under the same conditions as the plant is to be cultivated in. Advanced vocationaltraining of plant breeders must be continuously maintained, focusing on phenotype-based selection in as accurate as possibleexperiments

Unveiling the Therapeutic Potential of Clitoria guianensis (Aubl.) Benth var. Guianensis: A Comprehensive Review of its Anti -Inflammatory and wound healing properties

Introduction This article proposes a comprehensive systematic review to analyze the potential of Clitoria guianensis as an anti-inflammatory and wound healing agent The emphasis on diversifying research methods aims to deepen understanding of its medicinal properties especially in the context of anti-inflammatory and wound healing activities The plant belonging to the genus Clitoria and native to Brazil is recognized for its aphrodisiac properties and is used as a sexual stimulant tonic and energizer Studies highlight the presence of bioactive compounds such as isoflavones which contribute to its medicinal properties Methodology The study was based on the Systematic Literature Review Protocol SLRP establishing a framework for comprehensively reviewing scientific literature The objective was to identify the medicinal properties of C guianensis in Brazil focusing on its potential anti-inflammatory and wound healing properties Results The results of this scientific review aim to substantiate the consideration of C guianensis as a potentially beneficial plant in tissue regeneration processes Although not directly addressing wound healing it is suggested that its antiinflammatory properties and modulation of the immune response may positively influence these processes Discussion Systematic analysis provides a critical and comprehensive insight into the medicinal properties of C guianensis contributing to the understanding of its antiinflammatory and wound healing potential A diversified approach integrating in vivo in vitro and in silico data is essential for understanding its potential in clinical practice Conclusion This study by conducting a systematic review of scientific literature explored evidence related to the antiinflammatory and wound healing potential of C guianensis Practical implications confirm the medicinal and pharmacochemical properties of this medicinal plant revealing its chemical and therapeutic richness and highlighting the importance of further studies Thus this work establishes a solid foundation for future research advancing the understanding and therapeutic application of C guianensis in medicin

Motor praxeology and soccer: internal logic and indications to the teaching-learning-training process

El trabajo pedagógico con el Fútbol está insertado en contextos distintos y puede ser conducido de variadas maneras y, frecuentemente, está basado por el conocimiento empírico de entrenador en cuanto practicante de la modalidad. En esta investigación, los conocimientos de la Praxiología Motriz son utilizados para proporcionar un amplio entendimiento de la Lógica Interna del Fútbol. Por medio de un análisis praxiológico, construimos una base de conocimiento científico acerca del juego y proponemos indicativos al proceso de enseñanza-aprendizaje-entrenamiento de la modalidad. Los aspectos comunicacionales del juego, la dinámica de los cambios de roles y la caracterización de las Acciones Motrices ganan destaque acerca de una mayor base sobre las condiciones de juego. De esta manera, buscamos fomentar el conocimiento acerca del Fútbol y aportar para una selección coherente de métodos y contenidos por parte de los entrenadores.The Soccer pedagogical work is inserted in different contexts and can be conducted in various ways. It is often supported by the empirical knowledge of coaches as practitioners of the sport. In this research, the knowledge of Motor Praxeology is used to provide a wider understanding of Soccer's Internal Logic. trough a praxiological analysis, we construct a scientific knowledge base about the game and propose indications to the teaching-learning-training process of this modality. The communicative aspects of the game, the dynamics of the role changes and the characterization of the motory actions are highlighted on a more intimate basis on the playing conditions. In this way, we seek to foster knowledge about Soccer and contribute to a coherent selection of methods and content by the coaches.Facultad de Humanidades y Ciencias de la Educació

Comparison between non-parametric indexes in the selection of biofortified curly lettuce

Selection indexes can be applied to simultaneous analysis of traits, increasing the efficiency of breeding in choosing the genotypes that meet the needs of both the market and the consumer. While it is a technic applied to several cultures, there are few studies about it in lettuce lines. For this reason, the aim of this study was to comparate assess the efficiency of different selection indexes for selecting biofortifiedleaf lettuce lines with good agronomic traits. The experiment was carried out at the Estação Experimental de Hortaliças of Federal University of Uberlândia (UFU), campus Monte Carmelo, in 2018. The experiment was designed in full randomized blocks of 3 repetitions with 25 leaf lettuce genotypes (22 lines from cultivars Pira 72 versus Uberlândia 10000 and 3 commercial cultivars – cv. Grand Rapids, UFU-Biofort and Uberlândia 10000). The lines are part of the UFU biofortified lettuce breeding program and were assessed for the total green mass (g), the stem diameter (cm), commercial leaves count, plant diameter (cm), foliar temperature (°C), SPAD index, anthocyanin content (mg 100g-1 sample), and bolting (days after sowing). To estimate selection gains, 10 genotypes were selected using both direct and indirect selection, as well as the traditional index, the sum of ranks index, Willians base index, and the multiplicative index. Mulamba and Mock sum of ranks index and Subandi multiplicative index provided the biggest total gains for the traits assessed in biofortified leaf lettuce. Both indexes were similar in selecting genotypes.Selection indexes can be applied to simultaneous analysis of traits, increasing the efficiency of breeding in choosing the genotypes that meet the needs of both the market and the consumer. While it is a technic applied to several cultures, there are few studies about it in lettuce lines. For this reason, the aim of this study was to comparate assess the efficiency of different selection indexes for selecting biofortifiedleaf lettuce lines with good agronomic traits. The experiment was carried out at the Estação Experimental de Hortaliças of Federal University of Uberlândia (UFU), campus Monte Carmelo, in 2018. The experiment was designed in full randomized blocks of 3 repetitions with 25 leaf lettuce genotypes (22 lines from cultivars Pira 72 versus Uberlândia 10000 and 3 commercial cultivars – cv. Grand Rapids, UFU-Biofort and Uberlândia 10000). The lines are part of the UFU biofortified lettuce breeding program and were assessed for the total green mass (g), the stem diameter (cm), commercial leaves count, plant diameter (cm), foliar temperature (°C), SPAD index, anthocyanin content (mg 100g-1 sample), and bolting (days after sowing). To estimate selection gains, 10 genotypes were selected using both direct and indirect selection, as well as the traditional index, the sum of ranks index, Willians base index, and the multiplicative index. Mulamba and Mock sum of ranks index and Subandi multiplicative index provided the biggest total gains for the traits assessed in biofortified leaf lettuce. Both indexes were similar in selecting genotypes