Diversity, Phylogenetics And Life Cycles Of Diplostomoidean (Digenea: Diplostomoidea) Of The Upper Midwest

The superfamily Diplostomoidea Poirier, 1886 consists of a diverse, globally distributed group ofparasitic flatworms parasitic as adults in reptiles, birds, mammals, and very rarely, fish. The superfamily Diplostomoidea has a tumultuous history full of genus synonymizations and resurrections. Currently, the superfamily consists of 39 genera parasitizing primarily piscivorous animals as adults to include birds, reptiles, and mammals. This group of parasitic worms remains a highly active area of research and has recently undergone several major systematic changes including the abandonment of a subfamily-based system. Additionally, the influx of data entries in GenBank has lead to confusing nomenclature and misidentifications at the genus level. We have clarified the identity of species belonging to Posthodiplostomum, Diplostmum, Austrodiplostomum, Tylodelphys, Neodiplostomum, Crassiphiala, and Neofibricola through molecular tools and the description of new species

Peran Dosen Mengatasi Permasalahan Pembelajaran Online Pada Masa Pandemi Covid-19

Seluruh dunia tergoncang akibat munculnya pandemi Covid-19. Tidak terkecuali dunia pendidikan. Sekolah dan kampus akhirnya ditutup dan diharuskan belajar dari rumah secara online sebagai salah satu cara memutus rantai penyebaran Covid-19. Tujuan dari penelitian ini adalah untuk mengetahui peran dosen dalam mengatasi permasalahan pembelajaran jarak jauh secara online terhadap mahasiswa di Sekolah Tinggi Teologi Blessing Indonesia Makassar pada masa pandemi Covid-19. Metode penelitian, deskriptif kualitatif. Data diperoleh dengan wawancara, observasi dan analisis dokumentasi. Responden sebanyak 8 orang dosen, data wawancara di transkrip secara verbatim kemudian dianalisa dan disimpulkan. Hasil penelitian didapatkan tiga tema, yaitu: Pertama; ditetapkan platform WhatsApp Grup sebagai media utama yang digunakan dalam proses belajar online, karena dianggap lebih sederhana, efisien dan hemat biaya bagi mahasiswa yang mayoritas di daerah yang sulit terjangkau signal internet. Kedua; beberapa dosen siap membantu mahasiswa dengan menyalurkan dana dalam jumlah tertentu untuk memenuhi kebutuhan kuota internet mahasiswa, memberikan pendampingan motivasi belajar dengan terus membangun komunikasi yang bersahabat dengan mahasiswa melalui whatsapp group diluar jam perkuliahan. Ketiga; harapan dari dosen kepada mahasiswa adalah mahasiswa bisa membangun konsep belajar mandiri (Self Regulated Learning) untuk mengembangkan pengetahuan, karakter dan kerohaniannya (aspek kognitif, afektif dan psikomotorik) sekalipun jauh dari kontrol dan pengawasan dosen secara langsung

Influência da remoção do hidróxido de cálcio com o uso de diferentes soluções irrigadoras na adesão à dentina radicular

TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências da Saúde. Odontologia.O objetivo deste estudo foi avaliar a influência da remoção da medicação intracanal de hidróxido de cálcio (HC) com o uso de diferentes soluções irrigadoras na adesão à dentina radicular. Para o estudo, 40 dentes humanos unirradiculares tiveram suas coroas seccionadas 1 mm acima da junção cemento-esmalte por um disco diamantado de dupla-face, padronizando seu tamanho em 16 mm de comprimento. Após o acesso, os canais foram preparados pela técnica coroa-ápice, com o uso de brocas de Gates-Glidden números 4 a 1 e de instrumentos flexofile e K-file, sendo o STOP apical padronizado pela Lima K #60. Durante o preparo, a irrigação foi feita com NaOCl a 1% e, ao final, com 3 mL de EDTA a 17% seguido de NaOCl a 1%. Na sequência, os canais foram preenchidos com Hidróxido de Cálcio pelo uso de espiral lentulo, selados com citodur e armazenados a 37oC e 100% de umidade. Após 14 dias, as raízes foram divididas aleatoriamente em 4 grupos de acordo com a irrigação utilizada na remoção do HC: G1 (grupo controle) = 6 mL de água destilada; G2 = 6 mL de NaOCl a 1%; G3 = 6 mL de EDTA a 17% e G4 = 3mL de EDTA a 17% + 3mL de NaOCl a 1%. Na sequência, os canais foram secos com cones de papel absorvente e obturados com AH Plus + guta percha, pela técnica de compactação lateral. Após 7 dias, as raízes foram seccionadas transversalmente em fatias de 1 mm. Uma fatia de cada terço (cervical, médio e apical) da raiz foi submetida ao teste de resistência de união ao cisalhamento por extrusão, push-out (0,5 mm/min, Instron 4444). A resistência aferida no momento da fratura foi convertida em MPa e as falhas observadas foram classificadas em adesiva, coesiva ou mista. Os dados obtidos foram analisados pelos testes estatísticos de ANOVA de duas vias e Tukey post hoc test com um nível de significância de 5%. Verificou-se que, no geral, os grupos irrigados com água destilada (G1), NaOCl (G2) e EDTA + NaOCl (G4) foram semelhantes entre si. O grupo irrigado apenas com EDTA (G3), embora tenha sido semelhante aos grupos G1 e G4, foi estatisticamente diferente com relação ao G2, obtendo média de resistência de união à dentina radicular significativamente menor quando comparado a este. Concluiu-se que a RU do material obturador à dentina do canal radicular, observada após o uso do EDTA na remoção do curativo de demora, diferiu dos demais grupos no terço apical e, de modo geral, foi significativamente menor do que no grupo irrigado apenas com hipoclorito de sódio.The aim of this study was to evaluate the influence of calcium hydroxide (HC) dressing removal using different irrigating solutions in relation of adhesion to root dentin. For the study, 40 single rooted human teeth had their crowns sectioned 1 mm above the cemento-enamel junction by a diamond disc double-sided, standardizing its size by 16 mm. After the access, the root canals were prepared by the crown-down technique with the use of Gates-Glidden drills numbers 4 to 1 and Flexofile and K-file instruments, being the apical STOP standardized by Lima K#60. During preparation, irrigation was done with 1% NaOCl and at the end, with 3 mL of 17% EDTA followed by 1% NaOCl. The canals were dried and filled with calcium hydroxide by the use of spiral lentulo, sealed with citodur and stored at 37oC and 100 % humidity. After 14 days, roots were randomly divided into 4 groups according to irrigation used in the removal of HC: G1 (control group) = 6 ml of distilled water; G2 = 6 ml of 1% NaOCl; G3 = 6 ml 17% EDTA and G4 = 3 ml 17% EDTA + 3 ml of 1% NaOCl. Then, the canals were dried with paper points and obturated with AH Plus + gutta percha by lateral compaction technique. After 7 days the roots were sectioned transversely into 1 mm slices. One slice of each root region (coronal, middle and apical) was subjected to push-out test (0.5 mm / min, Instron 4444). The bond strength was measured at fracture and converted into MPa. The observed failures were classified as: adhesive, cohesive or mixed. The data were statistically analyzed by means of two-way ANOVA and Tukey post hoc tests with a significance level of 5 %. It was found that groups irrigated with distilled water (G1), NaOCl (G2) and NaOCl + EDTA (G4) had statistically similar results. The group irrigated only with EDTA (G3), although it was similar to the G1 and G4, was statistically different with respect to G2, obtaining significantly lower mean bond strength to root dentin. It was concluded that the RU of the filling material to the root canal dentin, observed after the use of EDTA in removing of intracanal dressing, differed from the other groups in the apical third and, in general, it was significantly lower than the group irrigated only with sodium hypochlorite

Bound-states and polarized charged zero modes in three-dimensional topological insulators induced by a magnetic vortex

By coating a three-dimensional topological insulator (TI) with a ferromagnetic film supporting an in-plane magnetic vortex, one breaks the time-reversal symmetry (TRS) without generating a mass gap. It rather yields electronic states bound to the vortex center which have different probabilities associated with each spin mode. In addition, its associate current (around the vortex center) is partially polarized with an energy gap separating the most excited bound state from the scattered ones. Charged zero-modes also appear as fully polarized modes localized near the vortex center. From the magnetic point of view, the observation of such a special current in a TI-magnet sandwich comes about as an alternative technique for detecting magnetic vortices in magnetic thin films.Comment: 8 pages, 3 figures, new version with more discussions and results accepted for publication in The European Physical Journal

A contribuição das TICs para aumentar a credibilidade da imagem do destino. Estudo exploratório para o segmento de turismo acadêmico

[Resumo] A existência de estudantes internacionais em Galícia é uma situação cada vez mais evidente nas universidades galegas. Devido à competitividade existente não só entre destinos, mas também entre universidades, entender quais são os aspectos que influenciam na eleição do estudante, e saber como podemos influenciar na decisão desse turista é um ponto vital para a competitividade destes dois entes. Neste trabalho buscamos definir a mobilidade estudantil internacional como segmento turístico, além de propor variáveis que conformam a sua imagem. A pesquisa foi realizada segundo uma óptica qualitativa exploratória. Com ela se logrou identificar um conjunto de características do processo de formação da imagem. Aspectos afetivos e cognitivos que são considerados pelo turista acadêmico e que influem no seu comportamento de escolha do destino. Para chegar a esses resultados empiricamente, utilizou-se como métodos de coleta e análises dos dados a entrevista qualitativa e a análise de conteúdo, respectivamente. Dentre os resultados encontrados, cabe destacar a importância dada às informações orgânicas consultadas pelos entrevistados, que podem e devem ser consideradas pelos stakeholders de um destino que trabalhe com este segmento turístico[Abstract] The contribution of TICs to enhance the credibility of destination image. An exploratory study for academic tourism segment. The existence of international students is an increasingly evident situation in the Galician universities. Due to the competitiveness not only between destinations, but also between universities, it is necessary to understand what are the aspects that influence the student's choice. Moreover, knowing how we can influence the decision of that tourist is a vital point for competitiveness. This paper tries to define the international student mobility as a tourist segment, in addition to proposing variables that make up your image. The survey was conducted based on exploratory qualitative perspective. We identify a set of characteristics of the image formation process. Affective and cognitive aspects that are considered by the academic tourists and influence their destination choice behavior. We obtain these results using methods of collection as qualitative interviews and content analysis, respectively. Among the findings, we highlight the importance given to organic information registered by respondents, which can and should be considered by the stakeholder of a destination that works with this tourist segmen

Cooperation among Virtual Anthropoids in a Complex Environment

This paper presents an agent based model of the evolution of cooperation in a complex environment. Anthropoid agents reproduce sexually, and live in a world where food is irregularly distributed in space and seasonally produced. They can share food, form hunting and migrating groups, and are able to build alliances to dispute territory. The agents memorize their interactions with others and their actions are mainly guided by emotions, modelled as propensities to react in specific ways to other agents' actions and environmental conditions. The results revealed that sexual reproduction is extremely relevant: in the proposed model cooperation was stronger between agents of opposite sex.evolution of cooperation, computational model, anthropoids