Introductory programming: a systematic literature review

As computing becomes a mainstream discipline embedded in the school curriculum and acts as an enabler for an increasing range of academic disciplines in higher education, the literature on introductory programming is growing. Although there have been several reviews that focus on specific aspects of introductory programming, there has been no broad overview of the literature exploring recent trends across the breadth of introductory programming. This paper is the report of an ITiCSE working group that conducted a systematic review in order to gain an overview of the introductory programming literature. Partitioning the literature into papers addressing the student, teaching, the curriculum, and assessment, we explore trends, highlight advances in knowledge over the past 15 years, and indicate possible directions for future research

Steering the methanol steam reforming performance of Cu/ZrO2 catalysts by modification of the Cu-ZrO2 interface dimensions resulting from Cu loading variation

On Cu/ZrO2 catalysts, variation of the Cu loading from 0.2 wt% to 80 wt% allows assessing the influence of the Cu-ZrO2 interface on the methanol steam reforming (MSR) performance by steering Cu particle size and morphology, revealing the contribution of potential active sites at the interface and the intrinsic relative contributions of the support and Cu surface fraction. As ZrO2 influences both CO2-selective and selectivity-spoiling MSR reaction channels, disentangling support-specific effects from the special phase-boundary reactivity and the intrinsic Cu° reactivity is possible by our approach. By choosing a broad range of Cu loadings, a comparison of the most extreme cases of strong predominance of bulk-like Cu sites (80 wt% Cu) vs. highly dispersed Cu (0.2 wt%), dominated by interfacial and support reactivity, becomes accessible. Cu (80 wt%)/ZrO2 evolves as the best MSR catalyst by avoiding adverse support effects and providing a high number of support-wetting bulk-like Cu sites

Trypanorhyncha cestodes parasitic in blackfin goosefish, Lophius gastrophysus Miranda-Ribeiro, 1915 purchased in the State of Rio de Janeiro, Brazil

Submitted by Sandra Infurna ([email protected]) on 2019-10-15T16:36:22Z No. of bitstreams: 1 FranciscoLima_DelirGomes_etal_IOC_2007.pdf: 68029 bytes, checksum: 9f8c30658b93e259e1d64a26b86da1ea (MD5)Approved for entry into archive by Sandra Infurna ([email protected]) on 2019-10-15T16:52:47Z (GMT) No. of bitstreams: 1 FranciscoLima_DelirGomes_etal_IOC_2007.pdf: 68029 bytes, checksum: 9f8c30658b93e259e1d64a26b86da1ea (MD5)Made available in DSpace on 2019-10-15T16:52:47Z (GMT). No. of bitstreams: 1 FranciscoLima_DelirGomes_etal_IOC_2007.pdf: 68029 bytes, checksum: 9f8c30658b93e259e1d64a26b86da1ea (MD5) Previous issue date: 2007Universidade Federal Fluminense. Faculdade de Veterinária. NIterói, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Helmintologia. Laboratório de Helmintos Parasitos de Vertebrados. Rio de Janeiro, RJ, Brasil.Universidade Federal Fluminense. Faculdade de Veterinária. NIterói, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Helmintologia. Laboratório de Helmintos Parasitos de Vertebrados. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Helmintologia. Laboratório de Helmintos Parasitos de Vertebrados. Rio de Janeiro, RJ, Brasil.Ministério da Agricultura, Pecuária e Abastecimento. Superintendência Federal de Agricultura. Serviço de Inspeção de Produtos Agropecuários. Goiânia, GO, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Helmintologia. Laboratório de Helmintos Parasitos de Vertebrados. Rio de Janeiro, RJ, Brasil.O objetivo desta pesquisa foi determinar as espécies de cestóides da ordem Trypanorhyncha que parasitam o peixe sapo-pescador, Lophius gastrophysus Miranda-Ribeiro, 1915 comercializados por pescadores, nos mercados e em empresas de exportação de pescado nos municípios de Cabo Frio, Niterói, Duque de Caxias e Rio de Janeiro, enfatizando os índices parasitários, sítios de infecção e importância higiênico-sanitária. No período compreendido entre março de 2000 a dezembro de 2005 foram necropsiados 87 espécimes de L. gastrophysus. Quarenta e um peixes (47%) estavam parasitados por metacestóides de Trypanorhyncha. As espécies coletadas foram Tentacularia coryphaenae, Nybelinia sp., Mixonybelinia sp. e Progrillotia dollfusi. A maioria dos peixes parasitados (92,7%) apresentaram metacestóides de Trypanorhyncha na musculatura abdominal e na musculatura de importância comercial (dorso-lateral), onde foram encontradas as espécies T. coryphaenae, Nybelinia sp. e Mixonybelinia sp. Apenas três (7,3%) peixes não apresentaram metacestóides de Trypanorhyncha na musculatura, dois deles apresentaram-se parasitados por Nybelinia sp. no mesentério e na cavidade celomática, o outro por Progrillotia dollfusi na cavidade celomática. Em alguns espécimes, Mixonybelinia sp. causou lesões hemorrágicas equimóticas na fascia da musculatura abdominal. Metacestóides de Trypanorhyncha na musculatura não apresentam risco de infecção para humanos, mas afetam a estética do pescado, pelo aspecto repugnante, e por conseguinte, podendo ser rejeitado pelo consumidor e, muitas vezes, tendo a comercialização impedida pela fiscalização sanitária. Trypanorhyncha foram registrados pela primeira vez em L. gastrophysus.The aim of this study was to determine the cestodes species of the order Trypanorhyncha that parasite the blackfin goosefish, Lophius gastrophysus Miranda-Ribeiro, 1915 purchased from fishermen, markets and exportation fish industries from municipalities of Cabo Frio, Niterói, Duque de Caxias and Rio de Janeiro, emphasizing their parasite indexes, sites of infection and higienic-sanitary importance. Eighty seven specimens of L. gastrophysus were necropsied from March 2000 to December 2005. Forty one fish (47%) were parasitized by metacestodes of Trypanorhyncha. The collected species were Tentacularia coryphaenae, Nybelinia sp., Mixonybelinia sp. and Progrillotia dollfusi. Most of the parasitized fish (92.7%), presented metacestodes of Trypanorhyncha, in the abdominal muscles and in muscles of commercial importance (lateral back-dorsum), belonging to the species T. coryphaenae, Nybelinia sp., Mixonybelinia sp. Only three (7.3%) fish specimens did not present trypanorhynch metacestodes in the muscles, two of them were parasitized by Nybelinia sp. on the mesentery and the celomatic cavity and the other by P. dollfusi on the celomatic cavity. On some individuals, Mixonybelinia sp. caused equimotic hemorragic lesions on the fascia of the abdominal muscles. The presence of Trypanorhyncha metacestodes in the muscles does not represent a risk of infection for humans, but they have a negative effect on fish aesthetics because of the repugnant aspect, causing consumer rejection and the prohibition for commercial purpose by sanitary inspectors. Parasites of the order Trypanorhyncha are recorded in L. gastrophysus for the first time