bluuebunny/crossref_metadata_2025 huggingface dataset:
Paclitaxel Exposure and Dosage of Drug-coated Devices for the Treatment of Femoropopliteal Peripheral Artery Disease
Authors: Edwards Ceazón T , Schneider Peter A , Huynh Cindy
Published: July 2021

The role of paclitaxel in the treatment of femoropopliteal peripheral arterial disease is currently ambiguous. A summary-level meta-analysis of randomised trials published in 2018 demonstrated that paclitaxel-coated devices were associated with an increased all-cause mortality in those who underwent treatment at 2 years and 5 years. Further evaluation has been undertaken to establish whether there is a specific dose response, mechanism or reproducible signal. At this time, there has been no confirmation of dose response, as was initially asserted by the summary-level meta-analysis. No mechanism of harm has been identified. Although an association with increased mortality has been confirmed by patient-level meta-analysis, the strength of the signal has been inconsistent. The information suggests there is only an association between paclitaxel-coated devices and increased all-cause mortality, not causation. The authors encourage additional studies designed to follow long-term results after treatment with paclitaxel-coated devices, using real patient data, before a conclusion can be made.
Elucidating the Conceivability Argument
Authors: De Menezes Julia Telles
Published: July 2021

It shall be examined how anti-physicalist arguments give rise to the tension between those aspects of our everyday life (with focus on phenomenality) and the thesis of physicalism. The debate over the subjective character of consciousness, or as it is sometimes called: “the hard problem of consciousness” (CHALMERS, 1996), is considered to be the greatest challenge to physicalism. Many philosophers posit this as a matter that cannot be solved, regardless of scientific progress, for it is beyond the scope of what science can find out about the world. If they are correct, the consequence is that the idea of physicalism itself fails. The paper is divided in two parts. For the first part we will deal with Chalmers’ version of the conceivability argument as well as the semantic apparatus of the two-dimensional framework required to make the appropriate link between conceivability and possibility. At the end of this we shall take a look at Kripke’s version of the conceivability argument against physicalism.
Dotação e talento
Authors: Abad Alberto , Abad Thaís Marques
Published: July 2021

Os desafios impostos no contexto da transição da sociedade da informação à sociedade do conhecimento exigem que os professores possuam um conjunto de competências para atingir o ideal escolar e social de igualdade e inclusão. Posto isso, os docentes hão de atender às necessidades dos discentes alvo da Educação Especial. Eis a importância do Modelo Compreensivo de Desenvolvimento do Talento, que facilita a identificação dos discentes com dotação e promove ferramentas para o desenvolvimento de seus talentos. Nesse sentido, o objetivo do presente artigo é apresentar o Modelo Integrado de Desenvolvimento do Talento (IMDT), aos professores, como uma nova proposta para o atendimento às necessidades especiais dos discentes com Dotação e Talento. A metodologia proposta pela pesquisa é descritiva e explicativa, com referências teóricas publicadas por meios escritos e eletrônicos, que incluem livros e publicações periódicas que abordam os estudos atuais sobre a matéria. As principais publicações originais sobre o IMDT foram lidas e analisadas, assim como foi realizado com comentadores. Como resultado, observou-se a necessidade de uma oportuna identificação de estudantes com dotação, a importância de um planejamento de atividades constantemente desafiadoras e um conteúdo significativo, que promova o processo integral de desenvolvimento do talento.
O papel da pesquisa no processo de avaliação das políticas educacionais
Authors: Guerra Simone Zanatta , Estormovski Renata Cecilia
Published: July 2021

O presente artigo objetiva discutir o papel da pesquisa no processo de avaliação das políticas educacionais, especialmente as avaliações de caráter formativo e plural, das quais, por vezes, as políticas educacionais carecem e que, contraditoriamente, constituem importante estratégia para a leitura das realidades concretas nas quais a política de educação se materializa. Para isso, busca-se trazer para análise, de maneira breve e não esgotada, elementos para o estudo da pesquisa na área educacional, com destaque às pesquisas qualitativas e, especificamente, à abordagem do ciclo de políticas formulada por Stephen Ball e colaboradores. A pesquisa define-se como qualitativa, exploratória e bibliográfica e inclui entre os referenciais teóricos que a embasam André, Arretche e Mainardes. Aponta-se, nessa construção, o ciclo de políticas como uma possibilidade de realizar avaliações de políticas educacionais engajadas socialmente e comprometidas com a investigação dos impactos das desigualdades educacionais e sociais.
PRIORITIZATION OF URBAN MOBILITY INFRASTRUCTURE PROJECTS BASED ON URBAN CONFIGURATION AND ON MULTIDIMENSIONAL SCALING
Authors: PARANAIBA ADRIANO C. , CARVALHO ELIEZÉ B.
Published: July 2021

ABSTRACT Purpose: This article aims to propose an alternative methodology of analysis, assessment, and prioritization of urban mobility master projects capable of supporting investment decision-making, considering financial, economic, and space variables. Originality/value: There are no clear criteria on project proposal selection, what corroborates the critics about the selection process and prioritization of urban mobility projects in the Ministry of Cities. Intrinsically economic issues that are leveled in recent methodologies of investment and project analyses are variables considered hard to be converted into financial benefits to make up the financial evaluation. Design/methodology/approach: The methodology proposed will draw on the multidimensional scaling as a multivariate assessment tool in order to evaluate and prioritize the projects using their economic variables, the spatial variables of the urban planning, and the financial models of each project. The economic variables arise from the economic analysis available in the projects, as well as the projects’ financing models. The spatial variables acquired from the social logic of space theory or spatial syntax allow the assessment of cities’ integration capacity before project implementation and after their development, making it possible to identify improvements in urban mobility conditions. Findings: The use of multidimensional scaling by applying economic, financial, and spatial variables has proved to be effective in promoting decision-making, whether by indicating the best project or identifying how close and/or distant they are from the objectives of a given public policy.
UMA EXPERIÊNCIA DE ENSINO CENTRADA NA FORMAÇÃO DO PENSAMENTO CIENTÍFICO DO ESTUDANTE
Authors: Falcão Eliane Brígida de Morais
Published: July 2021

Resumo: O curso de Bioquímica I, desenvolvido por um grupo de professores do Departamento de Bioquímica do Centro de Ciências da Saúde da Universidade Federal do Rio de Janeiro, tem como um dos seus objetivos principais a formação científica do aluno. O método pedagógico seguido da “redescoberta” é entendido como uma forma de levar os alunos à adquirirem conhecimentos ao mesmo tempo que “redescobrem” o caminho científico produtor deste mesmo conhecimento. Este artigo trata dos resultados do estudo acerca da receptividade do curso pelos alunos e da relação desta receptividade com a possiblidade de pensar, de raciocinar, sem prejuízo da aquisição de conhecimentos. Mostra, também, a modificação que o aluno tende a sofrer durante o Curso Médico: de uma atitude de maior interesse em participar da construção do conhecimento científico, para outra de apenas atuar como consumidor desse conhecimento. Ao final da graduação, a tendência do aluno é ver a prática médica dissociada da prática científica.
TECNOLOGIA EDUCACIONAL NA FORMAÇÃO DE RECURSOS HUMANOS PARA A SAÚDE
Authors: Lobo Luiz Carlos
Published: July 2021

Resumo: Tendo definido tecnologia educacional como o emprego do conhecimento científico e da experiência acumulada na solução de problemas, o autor procura caracterizar os aspectos fundamentais da formação de recursos humanos básicos para a saúde. Discute a importância da mudança do marco conceituai da organização do setor saúde de assistência para cobertura, para que se atinja a meta “Saúde para todos no ano 2000”. Ressalta a necessidade de se realizar, concomitantemente, a mudança do marco conceitual da estruturação do setor educação de ensino para aprendizagem, como etapa fundamental para assegurar preparação, de recursos humanos aptos a enfrentar a realidade sanitária e garantir a continuidade do processo educacional. Enfatiza o papel hegemônico do Serviço de Saúde na definição do tipo de recurso humano a ser formado e salienta, em conseqüência, a importância dos programas de integração docente-assistencial. Indica, finalmente, o papal da tecnologia educacional na viabilidade de tal estratégia docente.
Desenvolvimento de sorvete com adição de leitelho
Authors: Ramos Isabella , Silva Mariah , Antunes Veridiana , Praxedes Carla , Oliveira Miguel
Published: July 2021

Resumo O leitelho, um subproduto da produção de manteiga, é altamente poluente devido à alta demanda bioquímica de oxigênio. Uma das características principais desse resíduo é a presença de fosfolipídeos, que o torna um ótimo emulsificante para ser aplicado em alimentos. Deste modo, o objetivo do presente trabalho foi estabelecer uma formulação para a fabricação de sorvete e verificar na mesma a influência do leitelho na substituição de leite desnatado. Para isso, foram elaboradas três formulações: tradicional (100% leite desnatado); com 50% de substituição de leite desnatado por leitelho, e outra com substituição total do leite desnatado por leitelho (100% leitelho). Esses sorvetes foram submetidos à análise de pH, atividade de água, incorporação de ar (overrun), derretimento e análise sensorial (aceitação, intenção de compra e comment analysis). A amostra de sorvete que teve 100% do leite desnatado substituído por leitelho foi a que apresentou melhores resultados de overrun, derretimento e sensoriais, sendo o sorvete mais aceito e com melhor intenção de compra. Portanto, concluiu-se que o leitelho pode ser indicado como sendo um substituto do leite desnatado na produção de sorvetes, permitindo assim um ótimo aproveitamento desse resíduo.
Assessing the Impact of the ABC Cerrado Project1
Authors: Souza Geraldo da Silva e , Gomes Eliane Gonçalves , Freitas Antonio Carlos Reis de , Fernandes Paulo Campos Christo , Camboim Cristiane Edna
Published: July 2021

ABSTRACT Projects that help rural producers to use sustainable production practices are essential for the preservation of biomes. The ABC Cerrado Project, for example, aimed to promote the sustainable land use, as well as to improve the forest management, in the Cerrado (Brazilian Savanna) biome, from 2014 to 2019. The Project’s goals included assessing the impact resulting from training a group of farmers in sustainable technologies for agricultural production and offering them technical assistance for managing rural properties. In this study, the impact of this Project was evaluated. The perception of impact adopted here has three dimensions: technical efficiency; probability of the activity being a carbon sink; and reduction of carbon emissions. In general, there was an improvement in the environmental performance of farms assisted by the Project. This reflects the efforts of the farmers to adjust their production processes and incorporate the good agricultural practices disseminated by the technology transfer process proposed by the Project.
Efficiency of a new Waitea circinata extract against rice pathogens
Authors: Carvalho Jacqueline Campos Borba de , Chaibub Amanda Abdallah , Sousa Kellen Cristhina Inácio , Brito Denise Candini de , Filippi Marta Cristina Corsi de , Kato Lucília , Araújo Leila Garcês de
Published: July 2021

ABSTRACT Waitea circinata (Warcup & Talbot) is an orchid antagonist mycorrhizal fungus with biocontrol potential against rice pathogens. This study aimed to optimize the extraction method, obtain a new extract and evaluate its efficiency against rice pathogens in vitro and in vivo, as well as to compare it with other extraction methods and W. circinata. The extracts were obtained and screened for in vitro growth inhibition against the pathogens Cochliobolus miyabeanus, Monographella albescens and Sarocladium oryzae, using the following extracts: mycelial, crude, lyophilized and mycelial mass. An additional in vitro assay was performed with the principal rice pathogen (Magnaporthe oryzae), in order to evaluate the conidial germination and appressorium formation. Based on this evaluation, the lyophilized and mycelial mass extracts were tested in vivo against rice blast (M. oryzae) and compared to the W. circinata mycelial suspension, in different application forms (simultaneous and previous). The mycelial mass extract inhibited all the pathogens, and the crude and lyophilized extracts inhibited C. miyabeanus and M. albescens, respectively. The mycelial mass extract inhibited the M. oryzae conidial germination and appressorium formation by 80 %, and the simultaneous and previous applications suppressed the rice blast by 94 %. These results indicate that the new extract can be used to control rice pathogens.
Postharvest quality of fresh murici fruits as a function of storage and packing
Authors: Gomes Nayane Rosa , Pierre Bianca Soares , Morgado Cristiane Maria Ascari , Campos André José de
Published: July 2021

ABSTRACT Murici is a typical Brazilian Savanna fruit widely consumed by local communities. This study aimed to evaluate the postharvest quality of murici fruits as a function of storage and packing. The experiment followed a triple factorial scheme (3 x 2 x 9), evaluating three packing materials (polypropylene, low-density polyethylene and nylon/polyethylene), two atmosphere conditions (vacuum and non-vacuum) and 9 days of analysis (0, 2, 4, 6, 8, 10, 12, 14 and 16 days). The fruits were evaluated for fresh weight loss, firmness, total chlorophyll, total extractable polyphenols and total antioxidant activity. As for refrigeration, the vacuum treatments showed a lower fresh weight loss for fruits packed with nylon or polypropylene. Firmness decreased along the experiment, regardless of packing and atmosphere condition. The antioxidant activity increased up to the end of storage in all the treatments. Both the polypropylene and nylon/polyethylene under vacuum packing showed the best results for maintaining the murici quality.
Phenotypic variability of fruits and seeds in natural populations of Hymenaea stigonocarpa (Mart. Ex Hayne)
Authors: Castro Rodrigo Soares de , Gonçalves Ariany Rosa , Braga-Ferreira Ramilla dos Santos , Telles Mariana Pires de Campos , Chaves Lázaro José
Published: July 2021

ABSTRACT Hymenaea stigonocarpa (Mart. Ex Hayne), popularly known as jatobá-do-cerrado, is a fruit tree widely distributed in the Brazilian Savanna, has multiple uses and is a promising genetic resource. This study aimed to physically characterize fruits and seeds of H. stigonocarpa, as well as to estimate the phenotypic variability at three hierarchical levels: populations, mother trees within populations, and fruits/seeds within mother trees. Fruits from six mother trees were sampled from each of the 25 natural populations found in the Brazilian Savanna. The morphometric characterization of 742 fruits was carried out by evaluating 10 quantitative traits in fruits and seeds. In addition, comparative analyses were performed between the average values of H. stigonocarpa and the botanical variety H. stigonocarpa var. brevipetiolata. Significant phenotypic variations were noticed at all hierarchical levels. A high phenotypic differentiation among the populations was observed for quantitative traits (fruit mass and size, pulp mass and seed mass), being higher when H. stigonocarpa var. brevipetiolata was included in the analysis.
Impacto das superfícies de compressão na massagem cardíaca durante a reanimação cardiopulmonar: uma revisão integrativa
Authors: Vianna Carla de Azevedo , Oliveira Hudson Carmo de , Souza Lucimar Casimiro de , Silva Rafael Celestino da , Brandão Marcos Antônio Gomes , Campos Juliana Faria
Published: July 2021

Resumo Objetivo sintetizar as evidências disponíveis na literatura sobre os tipos de superfícies de compressão utilizadas na RCP e analisar quais características das superfícies de compressão têm impacto na eficácia da compressão torácica durante a RCP. Método revisão integrativa da literatura, cujos critérios de seleção e inclusão foram: artigos completos, em inglês, português ou espanhol e que respondessem a seguinte questão de pesquisa: “Quais são as características das superfícies de compressão que têm impacto na eficácia das compressões torácicas durante a RCP?”. Realizada entre os meses de junho e julho de 2019. Resultados inclui-se 12 artigos de estudos experimentais, cuja extração de dados revelou 13 tipos diferentes de colchões. Em relação às pranchas, seis tamanhos diferentes foram relatados, com diferentes materiais. Constatou-se influências do tipo de superfície de compressão na força necessária para realizar as compressões torácicas. Conclusão as evidências apontam que colchões de maiores dimensões e com tecnologia para redução de pressão e camas mais largas apresentam impactos negativos na qualidade das compressões torácicas. Implicação para prática o conhecimento sobre a influência do tipo e características das superfícies de apoio na qualidade das compressões torácicas podem subsidiar profissionais na escolha e incorporação de tecnologias no ambiente hospitalar.
Pandemia da COVID-19: repercussões no quotidiano da família de profissionais de saúde atuantes em unidades emergenciais
Authors: Barreto Mayckel da Silva , Hipolito Angel Braiani Lança , Hipolito Maria Aparecida Lança , Lise Fernanda , Radovanovic Cremilde Aparecida Trindade , Marcon Sonia Silva
Published: July 2021

Resumo Objetivo compreender as repercussões da pandemia da COVID-19 no quotidiano de familiares de profissionais de saúde atuantes em unidades de emergência. Métodos estudo descritivo-exploratório de abordagem qualitativa, realizado com 18 familiares de profissionais de saúde atuantes em duas unidades de emergência localizadas no Sul do Brasil. Os dados foram coletados de setembro a novembro de 2020, mediante entrevistas telefônicas audiogravadas, posteriormente transcritas na íntegra. A análise foi realizada à luz da sociologia compreensiva. Resultados as repercussões negativas da pandemia no quotidiano dos familiares foram marcadas pelo medo da atuação profissional na linha de frente e pela possibilidade de o familiar se contaminar, levando, por conseguinte, o vírus para os demais membros da família. Porém, paradoxalmente, houve repercussões positivas, como a união dos membros da família e maior aproximação da religiosidade/espiritualidade. Considerações finais e implicações para a prática identifica-se como relevante o desenvolvimento de estratégias de comunicação para oferecer suporte emocional, promover encorajamento, reconhecimento das forças do sistema familiar e, se necessário, educação para que se diminuam as consequências negativas, como o estigma e as desavenças decorrentes dessa experiência.
Espessamento das raízes aéreas de espécies de Pandanus Parkinson (Pandanaceae)
Authors: Barbosa Lucas Henrique Santos , Esteves Marina Cristina Soares , Cury-Guapo Graziela
Published: July 2021

RESUMO (Espessamento das raízes aéreas de espécies de Pandanus Parkinson (Pandanaceae)). Raízes e caules de monocotiledôneas são órgãos que, usualmente, não apresentam crescimento secundário ou em espessura. Porém, pode ocorrer e, para as raízes, a literatura não fornece muitas informações. Espécies do gênero Pandanus são facilmente encontradas em áreas urbanas e se caracterizam pela presença de raízes aéreas espessadas, oriundas do caule. Para verificar como ocorre o espessamento, raízes de P. utilis Bory, P. baptisti Hort., P. amaryllifolius Roxb e P. veitchii Hort, foram coletadas amostras das raízes em áreas urbanas, fixadas e processadas conforme técnica usual para análise ao microscópio de luz. Para todas as espécies o espessamento ocorre no sentido acrópeto, por meio da formação e expansão de espaços de espaços intercelulares no córtex e no cilindro vascular, atividade meristemática da proendoderme, divisão e aumento de volume das células parenquimáticas do córtex e do cilindro vascular e atividade meristemática do periciclo.
Relação entre fadiga vocal e qualidade de vida relacionada à voz em professores universitários
Authors: Coelho Sarah Coutinho , Depolli Gabriel Trevizani , Cruz Karen Santos , Fernandes Djanira Nogueira dos Santos , Costa Matheus Rodrigo Batista , Oliveira Gabriela , Azevedo Elma Heitmann Mares , Guimarães Michelle Ferreira
Published: July 2021

RESUMO Objetivo Identificar e correlacionar fadiga vocal e qualidade de vida em voz de professores universitários e verificar possíveis diferenças entre os sexos. Método Trata-se de um estudo transversal, observacional e analítico aprovado pelo Comitê de Ética em Pesquisa da instituição sob parecer n. 1.708.786. Foram aplicados os protocolos Índice de Fadiga Vocal (IFV) e Qualidade de Vida em Voz (QVV) em 126 professores universitários, sendo 71 mulheres e 55 homens, com média de idade de 43 anos. Foram calculados os escores pela fórmula de cada protocolo e a análise estatística foi realizada por meio da Correlação de Spearman. Resultados Em relação ao IFV, o escore médio encontrado para os fatores 1, 2 e 3 foram 13,78; 4,05 e 7,93, respectivamente. Quanto ao QVV, os professores apresentaram escore médio global de 91,90; 88,49 para o domínio físico e 97,02 para do domínio socioemocional. Houve correlação negativa de fraca a forte entre os protocolos. Não houve diferença estatística entre os sexos tanto para o IFV quanto para o QVV. Conclusão Professores universitários apresentam bons índices de qualidade de vida em voz, mas autorreferiram fadiga vocal, sem diferenças entre os sexos. Quanto menor é a fadiga vocal, maior é a qualidade de vida em voz e vice-versa.
Preliminary study on in vitro shoot culture of Hibiscus coddii subsp. barnardii, an indigenous South African flowering plant
Authors: Plessis Helena Jacoba du , Nikolova Roumiana Vassileva , Egan Bronwyn Anne , Kleynhans Riana
Published: July 2021

Abstract In vivo and in vitro grown plants of Hibiscus coddii subsp. barnardii were used as explant source for establishment of in vitro cultures. Nodal shoot explants derived from in vivo grown plants, both naturally and under controlled environmental conditions, showed high sensitivity to the surface disinfection treatment and poor survival in in vitro culture. In vitro grown seedlings proved successful as aseptic source of apical and basal shoot explants to establish contamination-free in vitro cultures. Sprouting of axillary buds was observed on 90% of apical shoot explants after four weeks of culture on full strength, plant growth regulator (PGR)-free Murashige and Skoog (MS) medium. However, further proliferation of short shoots, limited to the bud sprout at the explant base, occurred on only 50% of these explants. In contrast, all basal shoot explants attained 3-5 single primary axillary shoots (30-40 mm in length) while a clump of short (5-10 mm) shoots also formed at the base in 60% of these explants. In both explant types, addition of 0.25-1 mg L-1 6-Benzylaminopurine (BAP) to the MS medium resulted in a low frequency (10%-60%) of explants with short shoots (5-10 mm) that showed no further elongation. Moreover, explants cultured in the presence of BAP showed a high frequency of callus formation (up to 90%) and low survival (20%-60%). A lower frequency of callus formation (30%-40%) and higher survival (90%-100%) of both explant types occurred on BAP-free medium. Further subculturing of primary and secondary axillary shoots onto fresh MS medium (with and without BAP) did not improve shoot multiplication. Regenerated plantlets from PGR-free MS medium were successfully acclimatized and hardened-off.
Mapeamento e experiências de indígenas nas escolas médicas federais brasileiras: acesso e políticas de permanência
Authors: Luna Willian Fernandes , Teixeira Karla Caroline , Lima Giovana Kharfan de
Published: July 2021

A trajetória do ensino superior no Brasil é marcada pela restrição ao grupo privilegiado da população, com exclusão de pessoas indígenas. Nas últimas duas décadas, ações afirmativas foram desenvolvidas e possibilitaram o acesso de alguns indígenas às graduações de Medicina. Objetivando-se mapear e conhecer as experiências desses estudantes nas universidades federais brasileiras, desenvolveu-se uma pesquisa exploratória, quanti-qualitativa. Foram identificados 192 estudantes indígenas em 43 escolas médicas no ano de 2019. Dessas, 14 foram visitadas, realizando-se entrevistas narrativas com 24 indígenas estudantes de Medicina. Na análise temática de conteúdo emergiram experiências narradas pelos estudantes com foco em duas categorias: acesso à escola médica e políticas de permanência nas instituições. Ao conhecer as experiências desses estudantes no meio universitário, torna-se possível contribuir para sua permanência nos cursos, superando a invisibilidade e oportunizando trajetórias que correspondam às expectativas dos povos indígenas na formação médica.
PEMBUATAN SENYAWA BERTANDA 131I-MIBG DENGAN PENINGKATAN DOSIS TERAPI
Authors: Maskur Maskur , Chairuman Chairuman , Sugiharto Yono , Fauziah Asyikin Khoirunnisa , Triningsih Triningsih , Sulaiman Sulaiman
Published: July 2021

PEMBUATAN SENYAWA BERTANDA 131I-MIBG DENGAN PENINGKATAN DOSIS TERAPI. Senyawa bertanda 131I-MIBG telah berhasil diproduksi di Indonesia. Namun, konsentrasi radioaktivitas dan dosis radioaktivitas per botol masih kecil jika dibandingkan dengan produk komersial dari luar negeri yang beredar di pasaran. Saat ini, dosis radioaktivitas = 25 mCi/vial dan konsentrasi = 5 mCi/mL. Permasalahan yang dihadapi jika konsentrasi radioaktivitas dan dosis radioaktivitas per vial ditingkatkan maka produk menjadi tidak stabil dan terurai karena  dampak radiolisis. Produk komersial global umumnya dosis radioaktivitas =100 mCi/vial dan konsentrasi 10 mCi/mL. Pada penelitian ini telah dilakukan upaya peningkatan (scale up) konsentrasi dan dosis radioaktivitas per vial. Metode yang digunakan yaitu dengan meningkatkan jumlah benzyl alkohol dari 9 µL/mL menjadi 10 µL/mL larutan 131I-MIBG. Selain itu, penambahan buffer phosphat yang semula penambahannya dilakukan sebelum proses pemurnian dirubah menjadi setelah proses pemurnian. Hasil penandaan diperoleh 131I-MIBG sebanyak 153 – 254 mCi dengan randemen proses antara 33,60  - 51,94 %. Konsentrasi radioaktivitas cukup besar, yaitu antara 9,80 hingga 25,40 mCi/mL dengan dosis radioaktivitas 100 hingga 222 mCi/vial. Untuk menyesuaikan kebutuhan pasar maka 131I-MIBG produk BATAN dikemas dalam 100 mCi/vial dan konsentrasi 5-13 mCi/mL. Hal ini menunjukkan bahwa pembuatan senyawa bertanda 131I-MIBG dengan peningkatan dosis terapi telah berhasil dilakukan dengan baik.Kata kunci: Senyawa bertanda 131I-MIBG, konsentrasi radioaktivitas, dosis terapi.
A self-calibrating model to estimate average speed from AADT
Authors: Bruwer M M
Published: July 2021

Transport practitioners need a universally applicable speed prediction model to estimate average speeds on any road. Average annual speed is a key input to the economic assessment of transport infrastructure where reliable estimates of future average speeds are necessary to calculate economic costs and benefits. The relationship between Annual Average Daily Traffic (AADT) and average annual speed was investigated on higher-order roads across South Africa, revealing a high level of variability in this correlation at different locations. This variation is influenced by road characteristics, such as alignment and cross-section, complicating the formulation of a universal speed prediction model. Two novel speed prediction models are proposed in this article that use AADT to forecast future average annual speed. The speeds of heavy vehicles and light vehicles can be estimated separately, as well as the average speed of all vehicles simultaneously. Both models are self-calibrating, accounting for the variation in the AADT-speed relationship. This calibration step is unique to speed prediction models and increases the reliability of these models to estimate future average speeds considerably. Furthermore, self-calibrating average annual speed prediction models are universally applicable and will simplify economic assessment of transport infrastructure.
Static pile capacity from the rapid test via the unloading-point method
Authors: Luker I
Published: July 2021

Laboratory measurements were done of the end-bearing and side-shear stresses on small piles subjected to "static" and rapid load tests. Interpretation, by the unloading-point method, of the results of rapid tests were done to estimate what the behaviour under a static test would have been if it had been done instead. Comparisons were made of the estimated static test behaviour to the actual static test behaviour to determine empirical values of a factor to adjust estimates closer to actual static test results. The dependence of the empirical factor on soil type, the liquid limit of plastic soils and water content is shown.
Tablas de cognición contextual (TCC): un recurso para la investigación y mediación cultural en la enseñanza de la biología
Authors: Santos Renilda , Baptista Geilsa , Robles-Piñeros Jairo
Published: July 2021

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Este artigo apresenta os resultados de uma pesquisa qualitativa cujo objetivo foi analisar a influência do uso das Tabelas de Cognição Contextual (tcc) como subsídio nas aulas de botânica (tema do componente curricular biologia), com uma perspectiva intercultural. Os dados foram obtidos a partir da aplicação de uma sequência didática com estudantes agricultores e não agricultores que frequentavam um colégio público localizado no município de Coração de Maria, Estado da Bahia, Brasil, quando lhes foram solicitadas construções de duas tcc tendo apoio de livros didáticos, textos científicos e mediação de uma professora. Sobre essas tabelas, procedeu-se à análise de conteúdo e os resultados indicaram que os estudantes conseguiram pontuar relações dialógicas de semelhanças e de diferenças entre os seus conhecimentos prévios e os conhecimentos científicos da botânica, as quais apresentam importantes implicações para a aprendizagem da botânica, basicamente acerca da classificação, estruturas, nomeação, características, funções e relações ecológicas das plantas. Consideramos que as tcc atuam como um recurso de investigação e mediação dos saberes culturais que podem trazer dinamismo ao diálogo intercultural nas aulas de biologia.
Desarrollo de las competencias científicas por medio de una unidad didáctica en estudiantes de grado sexto de básica secundaria
Authors: Arrieta-García Emilio José , López-Marín Juan Carlos
Published: July 2021

Organismos internacionales recomiendan que los estudiantes desarrollen competencias científicas, por ello, este proyecto buscó analizar factores que influyen en este proceso, como lo es la implementación de una unidad didáctica en estudiantes de básica secundaria (grado sexto). Este artículo presenta una investigación de enfoque mixto bajo un diseño cuasi experimental, aplicado a un grupo experimental y de control, en el cual se aplicó una unidad didáctica cuyas actividades escolares fueron diseñadas atendiendo necesidades y estilos de aprendizaje. Así, se aplicaron dos pruebas para determinar el nivel de desempeño de las competencias científicas. Se consideraron instrumentos de recolección de información cualitativa (observación y registro en diario de campo) para el proceso. La implementación de la unidad didáctica permitió un aumento en el nivel de desempeño de las competencias científicas; la observación y registro en el diario de clase permitieron corroborar la importancia de implementar actividades en donde los estudiantes asuman un rol activo; las actividades diseñadas que tienen en cuenta estilos, características y necesidades de los estudiantes influyen en un aumento del nivel de desempeño de las competencias científicas.
A new variety of Montia parvifolia (Montiaceae) in the high Idaho Batholith of central Idaho and adjacent Montana
Authors: Ertter Barbara , Prentice Carol , Mansfield Donald H. , Kabins Joshua , Johnson Grahm M.
Published: July 2021

Montia parvifolia (Moc. ex DC.) Greene var. batholithica Ertter & C.A.M. Prent. (Montiaceae) is described as a new variety from high elevations (2100–2800 m) in central Idaho and adjacent Montana, based on an overview of variation within the species using a combination of standard taxonomic analysis of herbarium specimens, morphometric analysis, fieldwork, and common garden studies. Taxonomic history of the species is summarized, morphology and life history are clarified, and variation elsewhere in the species is also briefly addressed.
Studies in the vascular flora of the southeastern United States. VII
Authors: Weakley Alan S. , Poindexter Derick B. , Medford Hannah C. , Franck Alan R. , Bradley Keith A. , Sadle Jimi , Kelley John Michael
Published: July 2021

As part of ongoing efforts to understand, document, and conserve the flora of southeastern North America, we propose two new species, the recognition of a usually synonymized variety, the acceptance of two species of Waltheria as being present in peninsular Florida, taxonomic acceptance of a sometimes deprecated species transferred with a new name into a different genus, and we clarify the distribution and ecology of a species. In Carex (Cyperaceae), we re-analyze infrataxa in Carex intumescens and recommend the recognition of two varieties, a taxonomic schema first proposed in 1893, but usually not followed in the 128 years since. In Euphorbia (Euphorbiaceae), a careful assessment of south Florida material of Euphorbia subg. Chamaesyce sect. Anisophyllum subsect. Hypericifoliae reveals the need for taxonomic changes to best classify endemic representatives of this group, resulting in the naming of a new species, and a new name at species rank in Euphorbia for a taxon first named in Chamaesyce and sometimes subsequently treated at only varietal rank in Euphorbia. Chamaecrista deeringiana (Fabaceae, subfamily Caesalpinioideae) has been repeatedly misinterpreted to include two different and disjunct population systems with differing morphologies and habitats, which are here interpreted as separate species, one newly named and the other Chamaecrista deeringiana returned to its original and narrower interpretation as a south Florida endemic. Waltheria (Malvaceae) has sometimes been interpreted as being represented in Florida by a single taxon, Waltheria indica, but we disentangle the concepts of the widespread W. indica and the West Indian W. bahamensis and clarify that both are present in the southeastern United States. We reconsider the occurrence and habitat of Toxicoscordion nuttallii (Melanthiaceae) in three states in which it has been reported as a rare species, Mississippi, Missouri, and Louisiana, and remove it from the Mississippi flora as a garbled and false report. In Louisiana, its occurrence in calcareous prairie complexes limits its potential occurrence in the state to a specialized and rare habitat, but careful exploration of habitat remnants may result in the discovery of additional populations. Taxonomic studies and re-assessments of this kind are critical in laying the best scientific foundation for regulatory, policy, and land conservation decisions. This paper names or makes the case for the renewed acceptance of six species with range-wide conservation concern: one Critically Imperiled (G1 – Euphorbia ogdenii), one Imperiled (G2 – E. hammeri), and four Vulnerable (G3 – E. garberi, E. porteriana, Chamaecrista deeringiana, C. horizontalis).
Drymonia mexicana (Gesneriaceae), a new endemic species from Veracruz (Mexico)
Authors: Clavijo Laura , Ramírez-Roa Angélica , Clark John L.
Published: July 2021

Ongoing research on the systematics of Drymonia (Gesneriaceae) resulted in the discovery of a new species, Drymonia mexicana Clavijo & J.L. Clark of the Gesneriaceae (tribe: Gesnerieae, subtribe: Columneinae). The new species is distinguished by the combination of narrow leaves with large corollas, glabrous leaves adaxially, calyx lobes ovate, and campanulate flowers with the tube slightly recurved ventrally and the limb purple. The new species is endemic to high elevation forests in the the Mexican state of Veracruz. The plant is commonly cultivated, but its introduction from Mexico to the horticultural community is unknown. Here, we describe and illustrate Drymonia mexicana Clavijo & J.L. Clark and present a key to identify the species of Drymonia native to Mexico.
Catálogo actualizado de los géneros de angiospermas de distribución restringida a México
Authors: Rzedowski Jerzy
Published: July 2021

El censo se realizó mediante la extensa consulta de la literatura y de varios portales electrónicos y definió la existencia de 216 géneros del grupo de las angiosper-mas, cuyos representantes sólo se conocen del territorio de la República Mexicana. Las áreas de mayor concentración de endemismos regionales a este nivel taxonó-mico son el estado de Oaxaca, la península de Baja California, la Sierra Madre Occidental y la Sierra Madre Oriental. Entre otros datos informativos, el inventario reveló la presencia de diez géneros, cuyos componentes corresponden a habitantes, al parecer obligatorios, de suelos derivados de rocas yesíferas.
Estructura poblacional de Phyllanthus orbicularis (Phyllanthaceae) en cuatro localidades de Cuba
Authors: Leyva Luis Manuel , De Vales Fernández Dennys , Falcón-Hidalgo Banessa
Published: July 2021

Los estudios de estructura poblacional permiten analizar la variabilidad dentro y entre poblaciones naturales y son esenciales para emitir criterios sobre el estado de conservación de las especies. Phyllanthus orbicularis es una especie endémica de Cuba que habita en matorrales xeromorfos espinosos sobre serpentina, donde es dominante, sin embargo, no se han realizado estudios ecológicos de sus poblaciones. Conocer la estructura poblacional de P. orbicularis podría contribuir a evaluar el estado de conservación de este taxón y el de los matorrales xeromorfos espinosos sobre serpentina. El presente estudio tuvo como objetivo comparar la estructura poblacional de P. orbicularis en cuatro localidades de Cuba, en las que se realizó un muestreo sistemático por 10 parcelas de 4 m2. En cada parcela se registró el número de individuos y se les midió la altura, el diámetro de la base y la cobertura de la copa. La estructura etaria se caracterizó a partir de cinco clases de estado según la altura y el diámetro de la base. Adicionalmente, se calculó la densidad poblacional y el patrón de arreglo espacial resultó agregado. Las cuatro poblaciones se encontraron envejecidas, con un alto porcentaje de individuos adultos respecto a los juveniles. La población mejor estructurada fue la de Cuabales de Cajálbana, ya que presentó individuos en todas las clases de estado delimitadas; y la de peor estado la de Lomas de Galindo, en donde la influencia antrópica ha alterado la población natural de la especie. Además, el número de individuos de Phyllanthus orbicularis por clase de estado es dependiente de la localidad, lo que se evidenció en que la distribución por clases de estado no es la misma en cada una de las poblaciones estudiadas. Esta asociación pudiera estar dada por el nivel de manejo que existe en cada localidad, ya que las medidas de conservación en un área potencian el mejoramiento de las poblaciones de las distintas especies de la región.
A new combination in North American Silene (Caryophyllaceae)
Authors: Rabeler Richard K. , Gandhi Kanchi N.
Published: July 2021

The new combination Silene greenei (S. Watson) Howell subsp. angustifolia (F.N. Williams) Rabeler & Gandhi is proposed here.
A Prospective Study of Profile of Agricultural Orthopaedic Injuries in North India in a Tertiary Care Centre
Authors:   Department of Orthopaedics, Pt BD Sharma PGIMS, Rohtak, Haryana, India, Singh Dr. Roop , Arora Dr. Kunal ,   Department of Orthopaedics, Pt BD Sharma PGIMS, Rohtak, Haryana, India, More Dr. Hemant ,   Assistant Professor, Department of Orthopaedics, Pt BD Sharma PGIMS, Rohtak, Haryana, India, Kaur Dr. Kiranpreet ,   Department Anaesthesia, Pt BD Sharma PGIMS, Rohtak, Haryana, India, Khanna Dr. Mohit ,   Department of Orthopaedics, Pt BD Sharma PGIMS, Rohtak, Haryana, India, Delair Dr. Anas ,   Department of Orthopaedics, Pt BD Sharma PGIMS, Rohtak, Haryana, India
Published: July 2021

Background: Over time agriculture has transformed into an industry, both in scale andmechanization. Growing demand for agricultural yield and increasing mechanization has led togrowth in the numbers of agricultural accidents and injuries causing significant morbidity andeconomical loss. Aim: To study the causes, patterns, outcomes of injuries due to agriculturalaccidents, their effect on the productivity of the victims, and to suggest possible remedial measures,a prospective study was undertaken. Methods: A total of 106 patients reporting agricultural injuries(AI) over 14 months in 2019-20 were enrolled and data was recorded on a pre-structured proforma.Results: With the preponderance of male victims, educational status, skill levels, lighting & climaticconditions, intoxication and fatigue were found to be major determinants in the causation of injurieswith upper limbs being the predominantly involved part (75.47%) and most of the cases ended uprequiring some form of surgery (88.68%). Agricultural machinery (56.60%) was the main cause ofAI and Chaff Cutter Machine caused the maximum AI (37.73%). Amputations were the mostcommon injuries sustained (47.16%). Agricultural injuries affected the range of motion of body parts(32.07%) and work (58.49%) & household activities (49.05%); thus impairing work efficiency andeconomy. Conclusion: The present study highlights the need for a robust surveillance and dataanalysis leading to better design of farming machinery and equipment, more relevant education andtraining systems, stronger legislations as well as a comprehensive rehabilitative program aimed atreducing the socio-economic burden caused by agricultural injuries.
Assessment of functional mobility of persons in the 3rd age of life after programmed therapeutic exercises
Authors: Katana Bakir , Kaljić Eldad , Mačak Hadžiomerović Amra , Jaganjac Amila , Bojičić Samir , Trtak Namik
Published: July 2021

Introduction: Active aging is a process of optimizing of opportunities for health, participation, and safety to improve the quality of life as people age. Therapeutic exercises to strengthen muscles are especially important for the elderly, and the results of such exercises are positive in people with functional limitations. The aim of the study was to assess functional mobility of people in the 3rd age of life after programmed therapeutic exercises.Methods: The prospective study included two groups of 130 respondents over the age of 65 who came to the “Centre for Healthy Aging” in Novo Sarajevo in the period from September 1, 2014, until March 1, 2015. Using the time up and go test (TUG), the basic functional mobility was assessed and it represents the minimum time the respondent needs to get up from the armchair, walk a distance of three meters, turn around, and sit back in the armchair. We tested the respondents at the beginning, in the middle, and at the end of the study, which lasted for 6 months.Results: Analysis of the gender structure of the control and the test groups, using the Chi-square test, found a statistically significant difference, and in the test group, there were more female subjects than in the control group, χ2 = 50.620; p = 0.001. Analysis of the functional mobility of the respondents of the test groups using the TUG at the end of the study found that the respondents of the test group needed statistically significantly less time to perform the test (8.84 seconds) compared to the control group (9.59 seconds) and test Group B (9.41 seconds), F = 4.711; p = 0.041.Conclusion: Programmed therapeutic exercise leads to a significant improvement in functional mobility of persons in the 3rd age of life.
Towards (Hyper)Local Public Sphere: Comparison of Civic Engagement across the Global North
Authors: Hujanen Jaana , Dovbysh Olga , Jangdal Lottie , Lehtisaari Katja
Published: July 2021

The role of hyperlocal media is of increasing relevance as traditional local journalism experiences a decline due to centralisation and consolidation. The affordances of Internet and digital technologies also enable hyperlocal initiatives to enhance civic engagement in localities and serve as a place and resource for local deliberative processes. This study examines how the aims, perceptions and practices of hyperlocal media vary in three countries of the Global North—Sweden, Finland and Russia—and what implications this has for connectedness and civic engagement in local public spheres. The context of different media systems and local political regimes help to explore possibilities and limitations of hyperlocals as agents of place-oriented civic engagement. The data includes interviews with practitioners and analysis of selected hyperlocal media. Our results indicate that hyperlocal media practitioners in all three countries aim to provide local people and communities with a voice, and to enhance resident engagement in local life. We reveal three civic roles of hyperlocal media: (i) information provider, (ii) community builder, and (iii) civic mediator. Practices of civic engagement used by hyperlocal media range from relying on civic journalism to fostering civic debates and can be classified in two main categories: civic information and civic debate and interaction. The perceptions and practices of these hyperlocal media are, to some extent, similar because of comparable changes and challenges regarding the local media and public spheres. At the same time, the perceptions of civic roles vary, reflecting both the developments and differences in the countries’ media spheres and political regimes. This research raises a critical question about hyperlocal practitioners’ understanding of their own roles and aims, and in addition, how differences in media cultures and local regimes affect their performance as agents of local public spheres.
Relational Communication Spaces: Infrastructures and Discursive Practices
Authors: Keinert Alexa , Sayman Volkan , Maier Daniel
Published: July 2021

Digital communication technologies, social web platforms, and mobile communication have fundamentally altered the way we communicate publicly. They have also changed our perception of space, thus making a re-calibration of a spatial perspective on public communication necessary. We argue that such a new perspective must consider the relational logic of public communication, which stands in stark contrast to the plain territorial notion of space common in communication research. Conceptualising the spatiality of public communication, we draw on Löw’s (2016) sociology of space. Her relational concept of space encourages us to pay more attention to (a) the infrastructural basis of communication, (b) the operations of synthesising the relational communication space through discursive practices, and (c) power relations that determine the accessibility of public communication. Thus, focusing on infrastructures and discursive practices means highlighting crucial socio-material preconditions of public communication and considering the effects of the power relations which are inherent in their spatialisation upon the inclusivity of public communication. This new approach serves a dual purpose: Firstly, it works as an analytical perspective to systematically account for the spatiality of public communication. Secondly, the differentiation between infrastructural spaces and spaces of discursive practices adds explanatory value to the perspective of relational communication spaces.