15 research outputs found
GREENPEG â exploration for pegmatite minerals to feed the energy transition: first steps towards the Green Stone Age
This is the final version. Available on open access from the Geological Society via the DOI in this recordData availability:
All data generated or analysed during this study are included in this published article.The GREENPEG project, which is funded by the European Commission Horizon 2020 âClimate action, environment, resource efficiency and raw materialsâ programme, aims to develop multimethod exploration toolsets for the identification of European, buried, small-scale (0.01â5 million m3) pegmatite ore deposits of the NbâYâF (NYF) and LiâCsâTa (LCT) chemical types. The project is being coordinated by the Natural History Museum of the University of Oslo and involves four exploration services/mining operators, one geological survey, one non-profit helix association of administration, industry and academia, two consulting companies and five academic institutions from eight European countries. The target raw materials are Li, high-purity quartz for silica and metallic Si, ceramic feldspar, rare earth elements, Ta, Be and Cs, which are naturally concentrated in granitic pegmatites. Silicon and Li are two of the most sought-after green technology metals as they are essential for photovoltaics and Li-ion batteries for electric cars, respectively. GREENPEG will change the focus of exploration strategies from large-volume towards small-volume, high-quality ores and overcome the lack of exploration technologies for pegmatite ore deposits by developing toolsets tailored to these ore types. This contribution focuses on the methods applied in the GREENPEG project and as such provides a potential pathway towards the âGreen Stone Ageâ from the perspective of pegmatite-sourced minerals.European Union Horizon 2020FCT â Fundação para a CiĂȘncia e a TecnologiaScience Foundation IrelandEuropean Regional Development Fund (ERDF)Society of the Friendly Sons of St. Patrick for the Relief of Emigrants from Irelan
Organization and training at national level of antimicrobial stewardship and infection control activities in Europe: an ESCMID cross-sectional survey
Antimicrobial stewardship (AMS) and Infection prevention and control (IPC) are two key complementary strategies that combat development and spread of antimicrobial resistance. The ESGAP (ESCMID Study Group for AMS), EUCIC (European Committee on Infection Control) and TAE (Trainee Association of ESCMID) investigated how AMS and IPC activities and training are organized, if present, at national level in Europe. From February 2018 to May 2018, an internet-based cross-sectional survey was conducted through a 36-item questionnaire, involving up to three selected respondents per country, from 38 European countries in total (including Israel), belonging to the ESGAP/EUCIC/TAE networks. All 38 countries participated with at least one respondent, and a total of 81 respondents. Education and involvement in AMS programmes were mandatory during the postgraduate training of clinical microbiology and infectious diseases specialists in up to one-third of countries. IPC was acknowledged as a specialty in 32% of countries. Only 32% of countries had both guidance and national requirements regarding AMS programmes, in contrast to 61% for IPC. Formal national staffing standards for AMS and IPC hospital-based activities were present in 24% and 63% of countries, respectively. The backgrounds of professionals responsible for AMS and IPC programmes varied tremendously between countries. The organization and training of AMS and IPC in Europe are heterogeneous and national requirements for activities are frequently lacking
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Market Structure, ESG Performance and Corporate Efficiency: Insights from Brazilian Publicly Traded Companies
YesUsing a sample of Brazilian listed companies during 2010-2019, the study investigates the endogeneity and the directional cause-effect relationship between firm efficiency, market structure and firmsâ ESG performance under a Stochastic Structural Relationship Programming (SSRP) model. Also, comprehensive market structure indicators are used. The efficiency is estimated under a two-stage network Data Envelopment Analysis (NDEA) model. Our empirical evidence is threefold. First, our evidence indicates that firms with better environmental performance are more efficient, whereas lower ESG performance and poorer corporate governance practices are associated with a higher level of efficiency. Second, our findings suggest that market structure measures (i.e., competition and market power) have heterogeneous impacts on various ESG indexes. Specifically, higher market competition is associated with better overall ESG performance and environmental performance but worse corporate governance performance, although market power can only enhance the environmental and governance performance of firms. Third, the two market structure proxies employed in this study are significantly attributed to firm efficiency. Our findings provide practical implications for various stakeholders and suggest avenues for future studies that can build on our evidence.The full-text of this article will be released for public view at the end of the publisher embargo - 24 months after first publication
Leishmaniose tegumentar americana: casuĂstica hospitalar no Rio de Janeiro American tegumentary Leishmaniasis: hospitalized cases in Rio de Janeiro
FUNDAMENTOS: A leishmaniose tegumentar americana distribui-se amplamente no Brasil, e o Estado do Rio de Janeiro (capital e interior) constitui ĂĄrea endĂȘmica onde o vetor Ă© encontrado dentro e ao redor das habitaçÔes. OBJETIVOS: AnĂĄlise prospectiva de 48 casos de leishmaniose tegumentar americana atendidos no Hospital UniversitĂĄrio Clementino Fraga Filho/UFRJ, no perĂodo de 1990 a 2002. MĂTODOS: Todos os pacientes foram submetidos Ă biĂłpsia de pele ou mucosa, teste de Montenegro e exame otorrinolaringolĂłgico; SbV (10 a 20mg/kg), no total de 10, 30 e 90 doses. foi empregado em 44 pacientes; em quatro casos, anfotericina B (0,5mg/kg/dose) atĂ© dose cumulativa de 30mg/kg. RESULTADOS: 28 homens e 20 mulheres na faixa etĂĄria de 10 a 89 anos, dos quais 38 (79,1%) infectados no Rio de Janeiro, apresentaram Ășlcera de membro inferior e comprometimento de mucosa nasal como manifestaçÔes mais freqĂŒentes; 41 casos (85,4%) foram reatores Ă intradermorreação de Montenegro (5mm); 17 casos (35,4%) foram positivos para o achado de amastigotas em macrĂłfagos no infiltrado inflamatĂłrio dĂ©rmico; predominou o processo inflamatĂłrio crĂŽnico granulomatoso; cura clĂnica foi observada em 47 casos; um caso evoluiu para Ăłbito no dĂ©cimo dia de tratamento. CONCLUSĂES: O estudo da leishmaniose tegumentar (HUCFF/UFRJ) no perĂodo 1990/2002 evidenciou padrĂŁo conhecido nos aspectos epidemiolĂłgicos, clĂnicos e de resposta terapĂȘutica ao antimonial (SbV) e anfotericina B.<br>BACKGROUND: American tegumentary Leishmaniasis is widely found in Brazil; the state of Rio de Janeiro (capital and hinterland) is an endemic area where the vector is found inside and outside houses. OBJECTIVES: prospective study of 48 cases attended at the Teaching Hospital Clementino Fraga Filho - UFRJ, between 1990 - 2002. METHODS: All patients were submitted to skin or mucosa biopsy, Montenegro skin test and otorhinolaryngologic examination; SbV (10 - 20 mg/kg) with 10, 30 and 90 doses was used in 44 patients; in 4 cases, Amphotericin B (0.5 mg/kg/dose) until cumulative dosage of 30 - 50 mg/kg. RESULTS: 28 males and 20 females aged 10 - 89 years mostly infected in Rio de Janeiro (38 cases/79.1%) mainly presented ulcers in the extremities and involvement of nasal mucosa; 41 cases (85.4%) were reactive to the Montenegro skin test (5 mm); 17 cases (35.4%) were positive for amastigotes in tissue sections; an inflammatory chronic granulomatous process was mostly seen. Clinical cure was observed in 47 cases; one patient died on day 10 of treatment. CONCLUSION: The study of American tegumentary Leishmaniasis (HUCFF - UFRJ) from 1990-2002 showed a well-known "status" considering epidemiological and clinical perspectives as well as therapeutic response to antimony (SbV) and amphotericin B
Proposta de um mĂ©todo para atingir a manufatura responsiva na indĂșstria de calçados: implantação e avaliação por meio de uma pesquisa-ação Proposal of a method to achieve responsive manufacturing in the footwear industry: implementation and assessment through research-action
VĂĄrias estratĂ©gias (Manufatura em Massa Atual, Manufatura Enxuta, Manufatura Responsiva, Customização em Massa, Manufatura Ăgil,...) propĂ”em-se a auxiliar as empresas na gestĂŁo da manufatura. O foco deste artigo Ă© a Manufatura Responsiva (MR). O contexto em que se aplica a MR Ă© a alta variedade de produtos feitos sob encomenda tendo como um fator crĂtico de sucesso o tempo de resposta (diferença entre a data em que o cliente recebe o atendimento de seu pedido e a data em que o cliente faz o pedido) que deve ser o menor possĂvel, porĂ©m sem deteriorar os nĂveis de produtividade e qualidade. No Brasil, a MR Ă© pouco conhecida e nĂŁo utilizada de maneira formal. O objetivo deste estudo Ă© propor e avaliar, por meio de uma pesquisa-ação, uma sistemĂĄtica para atingir a MR em fĂĄbricas de calçados. Para a grande maioria dos fabricantes de calçados, a redução do tempo de resposta representa um importante trunfo competitivo. Dentre os resultados obtidos da implantação do mĂ©todo proposto na empresa Kidy, destacam-se: redução substancial do tempo de resposta, reduçÔes de custos produtivos e de mĂŁo de obra, aumento nas quantidades de pedidos atendidos dentro dos prazos e diminuição dos Ăndices de retrabalho.<br>There are several strategies (Modern Mass Production, Lean Manufacturing, Responsive Manufacturing (RM), Mass Customization, Agile Manufacturing, etc) that can be used to aid manufacturing management in enterprises. This paper focuses on Responsive Manufacturing. RM is applied in environments of high variety of made-to-order product, in which response time (the elapsed time between the end of an inquiry and the beginning of a response) is a critical factor and should be minimum without diminishing quality and disrupting productivity. In Brazil, RM is not well known or frequently used. The objective of this study is to propose and evaluate, by means of an action-research, a method to achieve RM in the footwear industry. For the majority of the footwear manufacturers, the reduction in response time represents a key competitive advantage. Among the main results obtained with the implementation of the proposed method in the company studied (Kidy) are: substantial reduction of response time, reduction of production and labor costs, increase of service level, and reduction of rework rate