Musculoskeletal systems that generate extremely fast movements in the trap-jaw ants

The 11th International Symposium on Adaptive Motion of Animals and Machines. Kobe University, Japan. 2023-06-06/09. Adaptive Motion of Animals and Machines Organizing Committee.Poster Session P1

The Th17/IL-23 Axis and Natural Immunity in Psoriatic Arthritis

Psoriatic arthritis (PsA) is a chronic inflammatory skin disease that causes enthesitis and destructive arthritis and significantly lowers patient quality of life. Recognition of the two target organs (the skin and joints) involved in the immunopathophysiology of PsA helped in elucidating the pathology of various systemic autoimmune diseases targeting multiple organs. Recent advances in immunology and genetics have made it clear that acquired immunity, especially that mediated by the Th17/IL-23 axis, plays an important role in the inflammatory pathology observed in psoriasis and PsA. Additionally, involvement of natural immunity has also been suggested. Microbial infection has been known to trigger psoriasis and PsA. Recent clinical studies using biopharmaceuticals, such as tumor-necrosis-factor- (TNF-) α inhibitors and IL-12/23 p40 antibodies, indicate that studies need not be based only on the immunological phenomena observed in PsA pathology since disease pathology can now be verified using human-based science. Considering this aspect, this paper discusses the immunopathology of PsA compared to psoriasis (cutaneous) and rheumatoid arthritis in humans and immunopathology of PsA with respect to the Th17/IL-23 axis and microbial infection

O cenário do serviço de banda larga e de telefonia móvel e a legislação de telecomunicações do Brasil

This work is a study of the broadband service and mobile telephony in Brazil, highlighting the importance of investment in expansion and improvements of the infrastructure throughout the country, as such measures impact on human development and economic prosperity. The information and communication technologies are disruptive, which cause the lifestyle modernization of the society of the present day and are even considered indicators of quality of life. But they depend on broadband and mobile telephony. Inequality between developed and developing countries is evident, even in relation to these technologies. Therefore, data from broadband and mobile telephony services in Brazil were shown and a survey was conducted with users to assess the quality of these services. In addition, the work presents the initiatives of the Brazilian government and the legislation, which end up being decisive for the future of the country, since public policies and laws must align with technological demand. In this way, cities and industries can benefit, making the country sustainable and in a digital economy.Trabalho de Conclusão de Curso (Graduação)Este trabalho é um estudo do serviço de banda larga e de telefonia móvel no Brasil, destacando a importância do investimento na expansão e em melhorias da infraestrutura em todo o território nacional, pois tais medidas impactam no desenvolvimento humano e na prosperidade econômica. As tecnologias de informação e comunicação são disruptivas, que causam a modernização do estilo de vida da sociedade dos dias de hoje e, inclusive, são consideradas indicadores de qualidade de vida. No entanto, dependem da banda larga e da telefonia móvel. A desigualdade entre os países desenvolvidos e em desenvolvimento é evidente, até mesmo em relação a essas tecnologias. Assim sendo, mostrou-se os dados do serviço de banda larga e de telefonia móvel do Brasil e realizou-se uma pesquisa de levantamento com os usuários para avaliar a qualidade desses serviços. Além disso, o trabalho apresentou as iniciativas do governo brasileiro e a legislação, que acabam sendo determinantes para o futuro do país, visto que as políticas públicas e as leis devem se alinhar com a demanda tecnológica. Dessa forma, as cidades e as indústrias podem se beneficiar, tornando o país sustentável e inserido numa economia digital

Mg-doped SrTiO₃ photocatalyst with Ag-Co cocatalyst for enhanced selective conversion of CO₂ to CO using H₂O as the electron donor

Photocatalytic conversion of CO₂ by H₂O is a promising method for solving energy and environmental problems. In this context, efficient photocatalysts that facilitate the selective conversion of CO₂ to the value-added chemical CO are essential. In this study, for the first time in the literature, we used an Mg-doped SrTiO₃ photocatalyst (Mg–SrTiO₃) for the photocatalytic conversion of CO₂ to CO using H₂O as the electron donor under monochromatic UV-light irradiation at 365 nm. Compared to pristine SrTiO₃, Mg–SrTiO₃, which was prepared via a flux method, exhibited dramatically enhanced conversion of CO₂ to CO in the presence of an Ag–Co cocatalyst. Moreover, the selectivity toward CO evolution was >99%, which indicates suppression of the unnecessary and competitive H₂ evolution. Scanning electron microscopy of Mg–SrTiO₃ revealed edge-shaved cubic particles, which were correlated to the anisotropic distribution of photogenerated electrons and holes and the consequent enhancement of photocatalytic activity. Furthermore, the Mg-doping temperature and amount used to prepare Mg–SrTiO₃ influenced the substitution of Ti⁴⁺ sites by Mg²⁺ in the bulk of SrTiO₃, thereby affecting the CO evolution. The apparent quantum efficiency of optimal Mg–SrTiO₃ in the photocatalytic conversion of CO₂ was determined to be 0.05%

Gait analysis of locusts walking on level, vertical, and ceiling planes

The 11th International Symposium on Adaptive Motion of Animals and Machines. Kobe University, Japan. 2023-06-06/09. Adaptive Motion of Animals and Machines Organizing Committee.Poster Session P5