Artisanal materials for sustainable construction in developing countries

Sustainable construction is a major challenge to developing countries more so when it comes to the use of artisanal materials in the construction process. This review identifies and examines the challenges facing developing countries in this respect: environmental degradation, poverty, informal settlements, inappropriate regulatory mechanism, inappropriate technology, and neglect in research and development debates. It notes that research and development at local level is necessary for addressing the challenges posed by the use of artisanal materials from sustainable development point of view. Above all, it recommends research into the area of artisanal materials and sustainable construction

Expectations and experiences of gamete donors and donor-conceived adults searching for genetics relatives using DNA linking through a voluntary register

STUDY QUESTION: What are the experiences of donor-conceived adults and donors who are searching for a genetic link through the use of a DNA-based voluntary register service? SUMMARY ANSWER: Donor-conceived adults and donors held positive beliefs about their search and although some concerns in relation to finding a genetically linked relative were reported, these were not a barrier to searching. WHAT IS KNOWN ALREADY: Research with donor-conceived people has consistently identified their interest in learning about-and in some cases making contact with-their donor and other genetic relatives. However, donor-conceived individuals or donors rarely have the opportunity to act on these desires. STUDY DESIGN, SIZE, AND DURATION: A questionnaire was administered for online completion using Bristol Online Surveys. The survey was live for 3 months and responses were collected anonymously. PARTICIPANTS/MATERIALS, SETTING, AND METHODS: The survey was completed by 65 donor-conceived adults, 21 sperm donors and 5 oocyte donors who had registered with a DNA-based voluntary contact register in the UK. The questionnaire included socio-demographic questions, questions specifically developed for the purposes of this study and the standardized Aspects of Identity Questionnaire (AIQ). MAIN RESULTS AND THE ROLE OF CHANCE: Motivations for searching for genetic relatives were varied, with the most common reasons being curiosity and passing on information. Overall, participants who were already linked and those awaiting a link were positive about being linked and valued access to a DNA-based register. Collective identity (reflecting self-defining feelings of continuity and uniqueness), as assessed by the AIQ, was significantly lower for donor-conceived adults when compared with the donor groups (P 0.05) for donor-conceived adults. LIMITATIONS, REASONS FOR CAUTION: Participants were members of a UK DNA-based registry which is unique. It was therefore not possible to determine how representative participants were of those who did not register for the service, those in other countries or of those who do not seek information exchange or contact. WIDER IMPLICATIONS OF THE FINDINGS: This is the first survey exploring the experiences of donor-conceived adults and donors using a DNA-based voluntary register to seek information about and contact with genetic relatives and the first to measure aspects of identity using standardized measures. Findings provide valuable information about patterns of expectations and experiences of searching through DNA linking, identity and of having contact in the context of donor conception that will inform future research, practice and policy development

Thematic Review: School Design and Learning Environments in the City of Espoo, Finland

This report presents the main findings and recommendations resulting from a review of education infrastructure investments in the city of Espoo, Finland, carried out by the CEB’s Technical Assessment & Monitoring Directorate. The objective of the review was to examine the links between school design and learning environments. The report provides Espoo officials with recommendations for enhancing the effectiveness of the education investment and identifies good practices that could be shared with other countries. The City of Espoo and the Finnish education system are internationally recognised as top performers for learning outcomes and one of the most equitable. However, rapid population growth, increasing numbers of children and foreign-language residents, and general tightening of the public budget pose challenges to service delivery just at a time when education infrastructure is expected to adapt to new learning curricula. Notwithstanding these challenges, the commitment to education remains very high on the part of all the stakeholders met in the city of Espoo. This commitment is reflected in the strategy for the City, the continuous financial support provided to the sector over the years, and the deep value and trust placed in their highly educated teachers. The eight schools visited by the review team already reflect some elements of the vision promoted by the new curriculum introduced in 2017, including the presence of differently sized learning spaces, heightened transparency and increased flexibility. The average learning space per child tends to be more generous than in other countries, given the use of spaces such as corridors and common areas for learning activities. The review team identified a series of key themes to encourage further discussion and exploration by Espoo teachers and city officials in their search for effective strategies to guide investments in the education sector. These include: • the need to find the right balance between cost-effectiveness and the promotion of effective learning environments; • the value of systematically involving the school community in the design process; • the importance of providing the necessary support for teachers to transition into new learning environments, by developing and implementing an Effective Spatial Professional Development programme. Ultimately, the effectiveness of any investment depends on how well it is used. In this regard, international research is unanimous in identifying teachers as the factor that correlates most strongly with student achievement. Thus, as part of any build, investing in teachers’ effective use of spaces must be a priority and an important component in the budgeting process

Third Generation of Service-Learning Research Yields More Thorough Data

The first and second generations of studies on service-learning, encompassing an era from the 1960s to the early 1990s, can be said to have consisted largely of: 1. research on experiential learning and community service in general (but not service-learning as we define it today); and 2. research conducted specifically on servicelearning programs, but having numerous methodological shortcomings

A Cone Jet-Finding Algorithm for Heavy-Ion Collisions at LHC Energies

Standard jet finding techniques used in elementary particle collisions have not been successful in the high track density of heavy-ion collisions. This paper describes a modified cone-type jet finding algorithm developed for the complex environment of heavy-ion collisions. The primary modification to the algorithm is the evaluation and subtraction of the large background energy, arising from uncorrelated soft hadrons, in each collision. A detailed analysis of the background energy and its event-by-event fluctuations has been performed on simulated data, and a method developed to estimate the background energy inside the jet cone from the measured energy outside the cone on an event-by-event basis. The algorithm has been tested using Monte-Carlo simulations of Pb+Pb collisions at $\sqrt{s}=5.5$ TeV for the ALICE detector at the LHC. The algorithm can reconstruct jets with a transverse energy of 50 GeV and above with an energy resolution of $\sim30$.Comment: 13 pages, 7 figure

TELLUS: A combined surface temperature, soil moisture and evaporation mapping approach

There are no author-identified significant results in this report

Upgrading School Buildings in Mexico with Social Participation: The Better Schools Programme

This review of Mexico’s Better Schools Programme was conducted in 2012 by the OECD Centre for Effective Learning Environments (CELE). In 2008, the federal government created the Programme to repair and improve the physical infrastructure of schools for basic education throughout Mexico. A key characteristic of the programme is social participation and the engagement of the each school community. The review team’s recommendations offer lessons to all governments investing in educational infrastructure to improve the quality of education