Current events knowledge of 198 sixth grade children.

Thesis (Ed.M.)--Boston Universit

Auntie knows best? public broadcasters and current affairs knowledge

Public service broadcasters (PSBs) are a central part of national news media landscapes. In many countries, PSBs are the first choice of citizens when it comes to news providers. And in perhaps more countries still, PSBs are thought of as specialists in provision of hard news. We test this proposition here using survey data from a large crossnational survey involving indicators of current affairs knowledge and media consumption. Specifically, we examine whether exposure to public versus commercial news influences the knowledge citizens possess about current affairs, both domestically and internationally. We also test, using propensity score analysis, whether there is variation across PSBs in this regard. Results indicate that compared to commercial news, watching PSB has a net positive influence on knowledge of hard news, though not all PSBs are equally effective in contributing to knowledge acquisition. This knowledge gap between PSB and commercial news media consumption appears to be mitigated by factors such as de jure independence,proportion of public financing, and audience share

Organic fruit production: Review of current practice and knowledge (OF0150)

This is the final report of Defra project OF0150 REASONS FOR STUDY AND KEY OBJECTIVES. There is a strong demand for organic fruit in the UK but the majority of this is met by imports. The main constraint on home production is a shortage of growers with sufficient acreage to supply wholesalers and supermarkets. The Organic Fruit Focus Group identified lack of technical information and research as a major barrier to growers considering conversion. The main aim of the present study was to gather technical information on organic growing techniques from growers, advisors and researchers from both the UK and abroad. Research priorities were also identified. Crops reviewed were apples, pears, strawberries, currants, gooseberries and raspberries. MAIN FINDINGS. • Research review. The most information was found on organic apple and strawberry production. Much of it was obtained by contacting researchers and advisors and is unrefereed literature e.g. conference proceedings, annual reports, advisory booklets and press articles. Relevant research from conventional systems was also reviewed. • Advisory literature from abroad. The most useful literature was from FiBL in Switzerland, LBI in the Netherlands and The Danish Agricultural Advisory Centre. • Research and development programmes abroad are producing relevant information of immediate use to UK growers. • Drafts of two booklets have been written during the review by combining several sources of information, i.e. 'Organic apples - pest and disease management' and 'Organic strawberry production - a growers guide' (see appendix 2 & 3) • Apples and pears. Technical problems are numerous but organic apple production can be profitable mainly because there is a market for organic class II fruit. However the conversion period is a major financial and technical barrier. Research priorities were identified, these included a) variety trials, b) scab control, c) studies on weed control/water/nutrients e.g. management of the orchard alleyways and the tree strip to encourage beneficial insects, manipulate nutrient supply and provide orchard access d) pest control e.g. optimising the use of floral strips to prevent pest epidemics and specific control methods for numerous major pests. • Strawberries. These are considered easier to grow. Suitable systems for weed control have been developed. The main problems and research priorities are a) Botrytis, b) powdery mildew, c) soil borne diseases (Verticillium and Phytophthora), d) encouraging beneficials for pest control e) optimising nutrient supply. • Raspberries, blackcurrants and gooseberries. Few growers with reasonable acreage were identified making it difficult to draw comprehensive conclusions. However, weed control is a major problem. Research priorities include management of the crop pathways and optimising the use of mulches. An important pest is raspberry beetle. Various other pests could become a problem if acreage is increased. TECHNOLOGY TRANSFER. Four possible avenues of dissemination were identified. • Collaboration with FiBL in Switzerland to produce adapted translations of grower booklets • Production of booklets through the Soil Association's Technical Guides for Organic Food Production • More immediate dissemination of 'less glossy' leaflets through the Organic Fruit Focus Group • Seminar/workshop/farm walk collaborative events between HDRA, Soil Association, Elm Farm Research Centre, Organic Fruit Focus Group and East Malling Research Association. Two events are already planned. ISSUES RELATED TO POLICY, ORGANIC STANDARDS AND PESTICIDE REGISTRATION a)The three year conversion period, in both top fruit and cane and bush fruit, is a major financial barrier. b) The unpredictable nature of fruit production may mean that financial support after conversion could be required to increase grower confidence. c) Diversification of business enterprise for top fruit could be encouraged. d) Long term and achievable standards of fruit quality should be agreed between supermarkets and growers. e) Products which could be important for organic fruit production were identified for consideration by PSD and/or UKROFS. f) Strategies for the propagation of organic plants for all fruit crops need to be developed; this could be done within a European context for some crops where there are no licensed propagators in the UK. g) Some tentative evidence suggests that the measures used to encourage beneficial fauna for pest control in organic orchards and the absence of soil sterilants in organic soft fruit production are resulting in species diversification; this needs to be explored further

Knowledge will Propel Machine Understanding of Content: Extrapolating from Current Examples

Machine Learning has been a big success story during the AI resurgence. One particular stand out success relates to learning from a massive amount of data. In spite of early assertions of the unreasonable effectiveness of data, there is increasing recognition for utilizing knowledge whenever it is available or can be created purposefully. In this paper, we discuss the indispensable role of knowledge for deeper understanding of content where (i) large amounts of training data are unavailable, (ii) the objects to be recognized are complex, (e.g., implicit entities and highly subjective content), and (iii) applications need to use complementary or related data in multiple modalities/media. What brings us to the cusp of rapid progress is our ability to (a) create relevant and reliable knowledge and (b) carefully exploit knowledge to enhance ML/NLP techniques. Using diverse examples, we seek to foretell unprecedented progress in our ability for deeper understanding and exploitation of multimodal data and continued incorporation of knowledge in learning techniques.Comment: Pre-print of the paper accepted at 2017 IEEE/WIC/ACM International Conference on Web Intelligence (WI). arXiv admin note: substantial text overlap with arXiv:1610.0770

Malaria in Sri Lanka: Current knowledge on transmission and control

Malaria / Disease vectors / Waterborne diseases / Environmental effects / Public health / Economic impact / Social impact / Sri Lanka

Euphorbia tirucalli L. (Euphorbiaceae): the miracle tree: current status of available knowledge

Euphorbia tirucalli is one of the most important tree Euphorbias known worldwide for its many uses. Endemic to tropical Africa where it often grows wild, it is usually planted for boundary demarcation but also as a live fence around compounds, shrines and kraals due to its ability to withstand extreme aridity and possession of low herbivore pressure. E. tirucalli has white latex which is vesicant and rubifacient but also known to be a remedy against many ailments. However, most of its medicinal features are reported in folk medicine and there appears to be little medical/laboratory analysis to validate them. In this review, we attempt to explore the current knowledge status about E. tirucalli in relation to its classification, chemical content and functions, and the extent to which modern research has gone to validate them. It was found that although a great deal has been done to analyze its chemical composition (bark, roots and latex), and potential for biodiesel production, little is available on validation of its application for medicinal purposes, yet it continues to be used in traditional and alternative medicine on a daily basis. Empirical research is called for to achieve this

Evaluation of the current knowledge limitations in breast cancer research: a gap analysis

BACKGROUND A gap analysis was conducted to determine which areas of breast cancer research, if targeted by researchers and funding bodies, could produce the greatest impact on patients. METHODS Fifty-six Breast Cancer Campaign grant holders and prominent UK breast cancer researchers participated in a gap analysis of current breast cancer research. Before, during and following the meeting, groups in seven key research areas participated in cycles of presentation, literature review and discussion. Summary papers were prepared by each group and collated into this position paper highlighting the research gaps, with recommendations for action. RESULTS Gaps were identified in all seven themes. General barriers to progress were lack of financial and practical resources, and poor collaboration between disciplines. Critical gaps in each theme included: (1) genetics (knowledge of genetic changes, their effects and interactions); (2) initiation of breast cancer (how developmental signalling pathways cause ductal elongation and branching at the cellular level and influence stem cell dynamics, and how their disruption initiates tumour formation); (3) progression of breast cancer (deciphering the intracellular and extracellular regulators of early progression, tumour growth, angiogenesis and metastasis); (4) therapies and targets (understanding who develops advanced disease); (5) disease markers (incorporating intelligent trial design into all studies to ensure new treatments are tested in patient groups stratified using biomarkers); (6) prevention (strategies to prevent oestrogen-receptor negative tumours and the long-term effects of chemoprevention for oestrogen-receptor positive tumours); (7) psychosocial aspects of cancer (the use of appropriate psychosocial interventions, and the personal impact of all stages of the disease among patients from a range of ethnic and demographic backgrounds). CONCLUSION Through recommendations to address these gaps with future research, the long-term benefits to patients will include: better estimation of risk in families with breast cancer and strategies to reduce risk; better prediction of drug response and patient prognosis; improved tailoring of treatments to patient subgroups and development of new therapeutic approaches; earlier initiation of treatment; more effective use of resources for screening populations; and an enhanced experience for people with or at risk of breast cancer and their families. The challenge to funding bodies and researchers in all disciplines is to focus on these gaps and to drive advances in knowledge into improvements in patient care