20 research outputs found

    Academic, industry and student perspectives on the inclusion of “vocational knowledge” in a ‘learning and teaching academic standards statement’ for agriculture

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    We report on the perspective of academic, student and industry stakeholders in a national project that has developed a Learning and Teaching Academic Standards (LTAS) Statement for the Agriculture discipline. Agricultural research and teaching relies on strong links with industry due to the applied nature of the discipline. Without these links, sustainable and profitable practice change in agricultural systems cannot be achieved. A pilot project, in 2011-2012, with academic staff from three Australian universities identified vocational knowledge as a potential focus for a TLO. The AgLTAS project provided the opportunity to validate or refute this TLO by seeking input from a wider group of stakeholders, including industry. National consensus was sought by a process of iterative consultation with academics, students and industry stakeholders and tested across four Australian universities. We have collected qualitative and quantitative data from industry participants who attended a series of workshops across most Australian States and Territories. We also conducted an online survey. Surprisingly, and contrary to the findings of the pilot project, industry representatives considered vocational knowledge of lesser importance to the need for students to attain highly developed problem solving and communication skills that can generate new opportunities and innovation in agriculture. Industry-specific (vocational) knowledge was generally regarded as attainable during on-the-job training after graduation. This finding prompts the question whether the AgLTAS Statement should be linked to professional accreditation that may be attained either before or after graduation. The next phase of the project aims to trial the Standards Statement for Agriculture by benchmarking the academic standards achieved in four universities that teach Agriculture and related disciplines, using an online Curriculum Mapping Tool

    A multi-center study of their physicochemical characteristics, cell culture and in vivo experiments

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    PVP-capped silver nanoparticles with a diameter of the metallic core of 70 nm, a hydrodynamic diameter of 120 nm and a zeta potential of −20 mV were prepared and investigated with regard to their biological activity. This review summarizes the physicochemical properties (dissolution, protein adsorption, dispersability) of these nanoparticles and the cellular consequences of the exposure of a broad range of biological test systems to this defined type of silver nanoparticles. Silver nanoparticles dissolve in water in the presence of oxygen. In addition, in biological media (i.e., in the presence of proteins) the surface of silver nanoparticles is rapidly coated by a protein corona that influences their physicochemical and biological properties including cellular uptake. Silver nanoparticles are taken up by cell-type specific endocytosis pathways as demonstrated for hMSC, primary T-cells, primary monocytes, and astrocytes. A visualization of particles inside cells is possible by X-ray microscopy, fluorescence microscopy, and combined FIB/SEM analysis. By staining organelles, their localization inside the cell can be additionally determined. While primary brain astrocytes are shown to be fairly tolerant toward silver nanoparticles, silver nanoparticles induce the formation of DNA double-strand-breaks (DSB) and lead to chromosomal aberrations and sister-chromatid exchanges in Chinese hamster fibroblast cell lines (CHO9, K1, V79B). An exposure of rats to silver nanoparticles in vivo induced a moderate pulmonary toxicity, however, only at rather high concentrations. The same was found in precision-cut lung slices of rats in which silver nanoparticles remained mainly at the tissue surface. In a human 3D triple-cell culture model consisting of three cell types (alveolar epithelial cells, macrophages, and dendritic cells), adverse effects were also only found at high silver concentrations. The silver ions that are released from silver nanoparticles may be harmful to skin with disrupted barrier (e.g., wounds) and induce oxidative stress in skin cells (HaCaT). In conclusion, the data obtained on the effects of this well-defined type of silver nanoparticles on various biological systems clearly demonstrate that cell-type specific properties as well as experimental conditions determine the biocompatibility of and the cellular responses to an exposure with silver nanoparticles

    The ESTMAP Project (Energy storage Mapping and Planning): focus on the subsurface data collection

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    International audienceThere is a strong link between energy security and the "2030 climate and energy framework" of European Commission. Reaching the goals of the "2030 framework" both efficiently and at the lowest possible costs for all is seen as a key step to address the energy security challenge in the long run. This requires elaboration of the framework for investments in renewables and energy efficiency. This planning has to be based on a robust and integrated set of data.As most data relevant to energy storage exists in a fragmented form, the major work in the ESTMAP project consists of compiling existing data in a unified database and exploiting it to optimise energy systems planning. Geologists, engineers and system modellers joined forces to define the format and the content of a database of both subsurface and above surface storage sites (existing, planned and potential). The idea is to ensure that the newly compiled dataset will fit the needs for robust modelling, planning and designing on a coherent basis and comparable among Member States and other European neighbouring countries. One of the project output consists of a geographical database providing information on distribution and expected capacity of existing and future energy storage sites in Europe, including costs and accessibility. Both subsurface storage options (hydrogen, compressed air, natural gas, underground pumped hydro, etc.) and above ground storages (pumped hydro, LNG, liquid air, etc.) are taken into account.In this project, BRGM, assisted by TNO, CGS and VITO, is in charge of data collection of subsurface energy storage. The objective of this task is to gather readily available and public data on existing and future potential storage sites. These data incorporate (1) the geographic location, description, characterization, subsurface properties and feasibility and capacity assessments of the subsurface reservoirs, as well as (2) the identification of known subsurface storage facilities attached to these reservoirs.A co-operation with European national geological institutions has been established. Co-operation agreements were concluded with members of EuroGeoSurveys and ENeRG groups. In countries not represented in these networks, national partners were contacted individually.The ESTMAP subsurface database populates data from EU member countries, the countries of the European Free Trade Association-EFTA (4 countries) and the Member of the Energy Community (8 countries). More than 920 sites spread around Europe have been identified during the subsurface data collection. Some of these have assessment information in term of proven, possible, probable, or assumed energy storages. All these data are forwarded for integration in the database to propose further modelling during the year 2016.ESTMAP project provides the opportunity to review the available public subsurface data in the European countries. The first encouraging results let open the possibility for further European cooperation in the next future

    Geological subsurface data collection as a part of the European ESTMAP Project (Energy STorage Mapping and Planning)

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    International audienceThere is a strong link between energy security and the "2030 climate and energy framework" of European Commission (the EC is the executive body of the European Union). Reaching the goals of the "2030 framework" both efficiently and at the lowest possible costs for all is seen as a key step to address the energy security challenge in the long run. This requires elaboration of the framework for investments in renewables and energy efficiency. This planning has to be based on a robust and integrated set of data. As most data relevant to energy storage exists in a fragmented form, the major work in the ESTMAP project consists of compiling existing data in a unified database and exploiting it to optimize energy systems planning. Geologists, engineers and system modellers joined forces to define the format and the content of a database of both subsurface and above surface storage sites (existing, planned and potential). The idea is to ensure that the newly compiled dataset will fit the needs for robust modelling, planning and designing on a coherent basis and comparable among Member States and other European neighbouring countries. One of the project output consists of a geographical database providing information on distribution and expected capacity of existing and future energy storage sites in Europe, including costs and accessibility. Both subsurface storage options (hydrogen, compressed air, natural gas, underground pumped hydro, etc.) and above ground storages (pumped hydro, LNG, liquid air, etc.) are taken into account. In this project, BRGM, assisted by TNO, CGS, Ecofys and VITO, is in charge of data collection of geological subsurface energy storage. The objective of this task is to gather readily available and public data on existing and future potential storage sites. These data incorporate (1) the geographic location, description, characterization, subsurface properties and feasibility and capacity assessments of the subsurface reservoirs, as well as (2) the identification of known subsurface storage facilities attached to these reservoirs. A cooperation with European national geological institutions has been established. Cooperation agreements were concluded with members of EuroGeoSurveys and ENeRG groups. In countries not represented in these networks, national partners were contacted individually. The ESTMAP geological subsurface database populates data from EU member countries, the countries of the European Free Trade Association-EFTA (4 countries) and the Member of the Energy Community (8 countries). More than 920 subsurface sites spread around Europe have been identified during the subsurface data collection. Some of these have assessment information in term of proven, possible, probable, or assumed energy storages. All these data are forwarded for integration in the database to propose further modelling during the year 2016. ESTMAP project provides the opportunity to review the available public geological subsurface data in the European countries. The first encouraging results let open the possibility for further European cooperation in the future

    Academic, industry and student perspectives on the inclusion of "vocational knowledge" in a 'learning and teaching academic standards statement' for agriculture

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    This paper reports on the perspective of industry stakeholders in a national project to develop a Learning and Teaching Academic Standards (LTAS) Statement for the Agriculture discipline. The AgLTAS Statement will be aligned with the Science LTAS Statement published in 2011 and comprise a discourse on the nature and extent of the Agriculture discipline and a set of Threshold Learning Outcome (TLO) statements specific to Agriculture. Agricultural research and teaching relies on strong links with industry due to the applied nature of the discipline. Without these links, sustainable and profitable practice change in agricultural systems cannot be achieved. A pilot project, in 2011-2012, with academic staff from three Australian universities identified vocational knowledge as a potential focus for a TLO. The AgLTAS project provides the opportunity to validate or refute this TLO by seeking input from a wider group of stakeholders, including industry. National consensus is being sought by a process of iterative consultation with academics, students and industry stakeholders and tested across four Australian universities. We have collected qualitative and quantitative data from industry participants who attended a series of workshops across most Australian States and Territories and through an online survey. Surprisingly, and contrary to the findings of the pilot project, industry representatives considered vocational knowledge of lesser importance to the need for students to attain highly developed problem solving and communication skills that can generate new opportunities and innovation in agriculture. Industryspecific(vocational) knowledge was generally regarded as attainable during on-the-job training after graduation. This finding prompts the question whether the AgLTAS Statement should be linked to professional accreditation that may be attaiined after graduation

    Overcoming the Neonatal Limitations of Inducing Germinal Centers through Liposome-Based Adjuvants Including C-Type Lectin Agonists Trehalose Dibehenate or Curdlan

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    Neonates and infants are more vulnerable to infections and show reduced responses to vaccination. Consequently, repeated immunizations are required to induce protection and early life vaccines against major pathogens such as influenza are yet unavailable. Formulating antigens with potent adjuvants, including immunostimulators and delivery systems, is a demonstrated approach to enhance vaccine efficacy. Yet, adjuvants effective in adults may not meet the specific requirements for activating the early life immune system. Here, we assessed the neonatal adjuvanticity of three novel adjuvants including TLR4 (glucopyranosyl lipid adjuvant-squalene emulsion), TLR9 (IC31®), and Mincle (CAF01) agonists, which all induce germinal centers (GCs) and potent antibody responses to influenza hemagglutinin (HA) in adult mice. In neonates, a single dose of HA formulated into each adjuvant induced T follicular helper (TFH) cells. However, only HA/CAF01 elicited significantly higher and sustained antibody responses, engaging neonatal B cells to differentiate into GCs already after a single dose. Although antibody titers remained lower than in adults, HA-specific responses induced by a single neonatal dose of HA/CAF01 were sufficient to confer protection against influenza viral challenge. Postulating that the neonatal adjuvanticity of CAF01 may result from the functionality of the C-type lectin receptor (CLR) Mincle in early life we asked whether other C-type lectin agonists would show a similar neonatal adjuvanticity. Replacing the Mincle agonist trehalose 6,6′-dibehenate by Curdlan, which binds to Dectin-1, enhanced antibody responses through the induction of similar levels of TFH, GCs and bone marrow high-affinity plasma cells. Thus, specific requirements of early life B cells may already be met after a single vaccine dose using CLR-activating agonists, identified here as promising B cell immunostimulators for early life vaccines when included into cationic liposomes
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