The 'algebra as object' analogy: a view from school

Treating algebraic symbols as objects (eg. “‘a’ means ‘apple’”) is a means of introducing elementary simplification of algebra, but causes problems further on. This current school-based research included an examination of texts still in use in the mathematics department, and interviews with mathematics teachers, year 7 pupils and then year 10 pupils asking them how they would explain, “3a + 2a = 5a” to year 7 pupils. Results included the notion that the ‘algebra as object’ analogy can be found in textbooks in current usage, including those recently published. Teachers knew that they were not ‘supposed’ to use the analogy but not always clear why, nevertheless stating methods of teaching consistent with an‘algebra as object’ approach. Year 7 pupils did not explicitly refer to ‘algebra as object’, although some of their responses could be so interpreted. In the main, year 10 pupils used ‘algebra as object’ to explain simplification of algebra, with some complicated attempts to get round the limitations. Further research would look to establish whether the appearance of ‘algebra as object’ in pupils’ thinking between year 7 and 10 is consistent and, if so, where it arises. Implications also are for on-going teacher training with alternatives to introducing such simplification.

What people study when they study Twitter: classifying Twitter related academic papers

PURPOSE: Since its introduction in 2006, messages posted to the microblogging system Twitter have provided a rich dataset for researchers, leading to the publication of over a thousand academic papers. This paper aims to identify this published work and to classify it in order to understand Twitter based research. DESIGN/METHODOLOGY/APPROACH: Firstly the papers on Twitter were identified. Secondly, following a review of the literature, a classification of the dimensions of microblogging research was established. Thirdly, papers were qualitatively classified using open coded content analysis, based on the paper’s title and abstract, in order to analyze method, subject, and approach. FINDINGS: The majority of published work relating to Twitter concentrates on aspects of the messages sent and details of the users. A variety of methodological approaches are used across a range of identified domains. RESEARCH LIMITATIONS/IMPLICATIONS: This work reviewed the abstracts of all papers available via database search on the term “Twitter” and this has two major implications: 1) the full papers are not considered and so works may be misclassified if their abstract is not clear, 2) publications not indexed by the databases, such as book chapters, are not included. ORIGINALITY/VALUE: To date there has not been an overarching study to look at the methods and purpose of those using Twitter as a research subject. Our major contribution is to scope out papers published on Twitter until the close of 2011. The classification derived here will provide a framework within which researchers studying Twitter related topics will be able to position and ground their work

Employee turnover, HRM and institutional contexts

Literature on comparative capitalism remains divided between approaches founded on stylized case study evidence and descriptions of broad trends, and those that focus on macro data. In contrast, this study explores the relevance of Amable’s approach to understanding differences in employment relations practice, based on firm-level micro data. The article examines employee–employer interdependence (including turnover rates) in different categories of economy as classified by Amable. The findings confirm that exit – whether forced or voluntary – remains more common in market-based economies than in their continental counterparts and that institutionalized employee voice is an important variable in reducing turnover. However, there is as much diversity within the different country categories as between them, and across continental Europe. In Denmark’s case, high turnover is combined with high unionization, showing the effects of a ‘flexicurity’ strategy. While employee voice may be stronger in Scandinavia, interdependence is weaker than in continental Europe.

Dairy and cardiovascular health: friend or foe?

Cardiovascular disease (CVD) prevalence at a global level is predicted to increase substantially over the next decade due to the increasing ageing population and incidence of obesity. Hence, there is an urgent requirement to focus on modifiable contributors to CVD risk, including a high dietary intake of saturated fatty acids (SFA). As an important source of SFA in the UK diet, milk and dairy products are often targeted for SFA reduction. The current paper acknowledges that milk is a complex food and that simply focusing on the link between SFA and CVD risk overlooks the other beneficial nutrients of dairy foods. The body of existing prospective evidence exploring the impact of milk and dairy consumption on risk factors for CVD is reviewed. The current paper highlights that high milk consumption may be beneficial to cardiovascular health, while illustrating that the evidence is less clear for cheese and butter intake. The option of manipulating the fatty acid profile of ruminant milk is discussed as a potential dietary strategy for lowering SFA intake at a population level. The review highlights that there is a necessity to perform more well-controlled human intervention-based research that provides a more holistic evaluation of fat-reduced and fat-modified dairy consumption on CVD risk factors including vascular function, arterial stiffness, postprandial lipaemia and markers of inflammation. Additionally, further research is required to investigate the impact of different dairy products and the effect of the specific food matrix on CVD development.

Addressing rural social exclusion through African social purpose ventures

Objectives. The overarching aim of this paper is to consider the relationship between social entrepreneurship and rural development, and as a mechanism to address social exclusion in the Global South, with specific reference to Sub-Saharan Africa. Drawing upon a number of case examples of social purpose ventures in Kenya, Mozambique and Zambia the objectives of this paper are: - To provide a synthesis of existing literature on the interaction between social purpose ventures and rural BoP communities in the developing world; - To explore extant social exclusion literature including economic, political and international development dimensions; and - To analyse the case study examples to consider the channels through which social purpose ventures contribute to tackling social exclusion amongst the rural BoP. Prior Work. There is growing interest in the role that social enterprises and wider social purpose ventures can play in sustainable development in the Global South. In many developing countries the majority of the population still reside in rural areas with these areas often particularly marginalised and underdeveloped. Previous studies have provided anecdotal examples where social purpose ventures have the potential to provide innovative solutions to the development challenges faced by rural households and communities. Yet research in this area remains relatively nascent and fragmented. In depth empirical studies examining social purpose ventures and rural development in the Global South are furthermore limited. Approach. Data was collected during in-depth case study research with social purpose ventures in Zambia, Kenya and Mozambique. Cases were selected through a purposive sample with access negotiated to rural BoP communities through gatekeeper partners. Qualitative research methods were primarily employed including interviews, stakeholder focus groups and observational research. Results Six channels through which social purpose ventures contribute to tackling social exclusion amongst rural BoP communities are identified. These include ventures with the BoP as employees, producers, consumers, entrepreneurs, service users and shareholders. A number of shared characteristics for successful social purpose ventures are also outlined. Finally implications for policy, practice and research are discussed. Implications. Despite the increasing attention being given to social purpose ventures as a mechanism for global sustainable development many questions remain unanswered. Limited empirical work has been undertaken on such ventures operating in rural settings in the developing world, particularly Africa. The paper will add to academic and practitioner knowledge in this area especially in relation to up-scaling impact, the long term sustainability and viability of social purpose enterprise ventures, and effective supporting interventions. This paper adds to knowledge in the field of social purpose venturing in the developing world. It identifies various channels through which such ventures help tackle rural social exclusion and also factors influencing their success. The paper provides insights for practitioners and policy makers, particularly in relation to facilitating successful social purpose venturing. Value This paper will provide insights relevant to both academic and practitioner audiences. It addresses a subject area and geographical region that has received limited research attention to date. The paper adds to knowledge on social purpose ventures and social entrepreneurship in Africa and wider developing world environments, and contributes to debates on its potential and present limitations as a vehicle for development and societal transformation

Nutrimetabonomics: nutritional applications of metabolic profiling

An individual's metabolic phenotype, and ultimately health, is significantly influenced by complex interactions between their genes and the diet. Studying these associations and their downstream biochemical consequences has proven extremely challenging using traditional hypothesis-led strategies. Metabonomics, a systems biology approach, allows the global metabolic response of biological systems to stimuli to be characterised. Through the application of this approach to nutritional-based research, nutrimetabonomics, the biochemical response to dietary inputs is being investigated at greater levels of resolution. This has allowed novel insights to be gained regarding intricate diet-gene interactions and their consequences for health and disease. In this review, we present some of the latest research exploring how nutrimetabonomics can assist in the elucidation of novel biomarkers of dietary behaviour and provide new perspectives on diet-health relationships. The use of this approach to study the metabolic interplay between the gut microbiota and the host is also explored.

Societal transformation in response to global environmental change: a review of emerging concepts

The study of societal transformation in response to environmental change has become established, yet little consensus exists regarding the conceptual basis of transformation. This paper aims to provide structure to the dialog on transformation, and to reflect on the challenges of social research in this area. Concepts of transformation are identified through a literature review, and examined using four analytical criteria. It is found that the term ‘transformation’ is frequently used merely as a metaphor. When transformation is not used as a metaphor, eight concepts are most frequently employed. They differ with respect to (i) system conceptualization, (ii) notions of social consciousness (deliberate/emergent), and (iii) outcome (prescriptive/descriptive). Problem-based research tends to adopt concepts of deliberate transformation with prescriptive outcome, while concepts of emergent transformation with no prescriptive outcome tend to inform descriptive-analytical research. Dialog around the complementarities of different concepts and their empirical testing are priorities for future research.

Cultural value of architecture in homes and neighbourhoods

This paper provides an account of the Cultural Value of Architecture in Homes and Neighbourhoods, (CVoA), a project developed with the Royal Institute of British Architects (RIBA). The first stage of the project was a critical review of ‘grey literature’ since 2000, industry based research on the value of architecture subdivided into themes: overall value; health and wellbeing; neighbourhood cohesion and heritage and belonging. Findings from the review revealed a marked absence of evidence of the value of architecture and an over preoccupation with the final building, the product of an interdisciplinary team not just Architects, as well as a general confusion about what it is that Architects do. Further consultation has led to the development of a framework for defining and communicating the skillsets of Architects and for developing an evidence base for their value. Our target audience is non-Architects as we are concerned with making the profession more inclusive hence our desire to create simple definitions and terminology.

The Commonwealth, gender and peacekeeping

Reflecting on the strategic commitment outlined in the Plan of Action for Gender Equality (2005-2015) and the priority issues of the Commonwealth Women’s Forum, this article assesses the extent to which the Commonwealth as an institution is supporting troop and police-contributing member states in addressing the gender imbalance in peacekeeping operations. Drawing on desk-based research, interviews with international policymakers and a statistical analysis of the International Peace Institute Peacekeeping Database, the article first outlines the Commonwealth’s gender and security policy perspective before examining data sets to determine the success of Commonwealth member states in integrating women into uniformed peacekeeping contingencies between 2009 and 2015. The article observes that, in spite of a renewed optimism and drive to propel women into leadership positions in politics, the judiciary, public bodies and private companies, security sector reform and the implementation of pillar one of the UN Security Council Resolution 1325, is notably absent from the Commonwealth’s gender agenda. It is argued that this policy gap suggests that national and international security architecture is regarded as an accepted domain of masculine privilege. A lack of political will among Commonwealth Heads of Government to mainstream gender equality and facilitate structural transformation of national security organs, and a chronically under resourced Commonwealth Secretariat limits the influence of the institution to that of arms-length promoter of international norms on women, peace and security.

Talangfabriken : Om organisation av kunskap och kreativitet i skivindustrin

The purpose of this dissertation is to describe, explain and understand how record companies identify and develop new music and new talent. The analysis is carried out on three levels: individual, organizational and sector level. In a record company, this task formally goes to A&R (Artist and Repertoire). This dissertation takes its point of departure in how the capacity for discovering new talent can be understood in terms of knowledge, creativity and competence and how this capacity is affected in the meeting between the record company and the industry. The theoretical framework of the dissertation spans two sociological fields: the sociology of organizations and the sociology of knowledge. While it takes its organizational starting point in the Knowledge Company Approach, it employs a practice-based approach to discuss knowledge. I argue that within the Knowledge company approach there are two contrasting ways to understand knowledge; a distinction is made between knowledge- and creativity-intensive enterprises. The results show that the record industry’s polarized structure can be seen as a result of the Knowledge Company’s typical problems. The A&R’s work is described as including two phases, one intuitive and one analytical. The intuitive assessment is direct, unconscious and without reflection. This ability has been described as "intuition" and "gut feeling". The analytical phase adds analysis and reflection based on knowledge. The results from the interviews with A&R’s reveal the limit of formal and explicit knowledge not only in the choice of music but also in the marketing strategies. The overarching picture is one in which record companies move in a space characterized by tension between dichotomous forces – art and commercialism, creativity and knowledge, culture and economy, chaos and order, but where opposite poles are not mutually exclusive but complementary.

Den litteraturvetenskapliga receptionsforskningen och internet : en metoddiskussion

Reader-Response Criticism and the Internet: A Methodological Discussion This article explores connections between Internet-based research and reader-response criticism, aiming to critically discuss the methodologies used in this particular field of research. First, the history of reader-response studies is briefly presented, with reference to theorists such as Richards, Rosenblatt, Robbe-Grillet, Iser and Jauss. It is noted that, for the past 15 years, people have utilised the Internet as a basis for the discussion of literary and reading-related topics. Researchers in this field may access reviews and commentaries on open web-based venues such as personal homepages, blogs and online forums (i.e. message boards and discussion sites). The material available on these sites is interesting because of its "spontaneous" nature; that is, such material has been formulated and uploaded without the interference of the researcher. The article presents one concrete example of an Internet-based reader-response study, discussing a number of pros and cons of the chosen methodology– including some important ethical considerations that arise when the researcher’s corpus is composed of material taken from the Internet. One of the conclusions of the paper is that many aspects of the general public’s web-based responses to literature are yet to be explored by the research community.

Distriktssköterskans upplevelser av att motivera patienter med diabetes typ 2 till hälsosammare levnadsvanor genom evidensbaserad vård : Kvalitativ intervjustudie

Bakgrund: Diabetes typ 2 är en folksjukdom och kan förebyggas eller fördröjas genom hälsosamma levnadsvanor. Att informera och motivera patienterna på ett hälsofrämjande och preventivt sätt är distriktssköterskans ansvar. Distriktssköterskans nyckelroll är att kritiskt granska evidensbaserad forskning för att uppnå en säker vård av god kvalitet som kan implementeras i praktiken. Syfte: Syftet med studien var att beskriva distriktssköterskors upplevelser av att motivera patienter med diabetes typ 2 till hälsosammare levnadsvanor genom evidensbaserad vård. Metod: En kvalitativ ansats användes. Semistrukturerade intervjuer genomfördes med sju distriktssköterskor. Materialet analyserades utifrån Graneheim och Lundmans innehållsanalys. Resultat: Resultatet i föreliggande studie visar att distriktssköterskorna måste utgå från patientens situation och individanpassa informationen. Genom stöd från distriktssköterskan ska patienten kunna motivera sig själv till att genomföra förändringar. Informanterna i studien belyste vikten av att informera patienten om diabetes samt vilka komplikationer som kan uppstå. För att uppnå en patientsäker vård av hög kvalitet ansåg distriktssköterskorna att evidensbaserad kunskap var en förutsättning. Konklusion: För att motivera patienterna till förändrade levnadsvanor krävs det att distriktssköterskorna informerar och undervisar patienterna om diabetes och hur förändrade levnadsvanor påverkar hälsan. Distriktssköterskan måste finna olika metoder för att motivera patienterna. Det som förmedlas ska grunda sig på vetenskap och evidensbaserad kunskap.

Práticas de ensino nos programas de mestrado acadêmico e doutorado em administração: considerações à luz do construtivismo

No presente estudo analisamos as práticas de ensino de docentes de mestrado acadêmico e doutorado em administração de três instituições do Rio de Janeiro e uma do Rio Grande do Sul. À luz da epistemologia construtivista buscamos compreender como essa epistemologia se insere na formação de gestores e docentes. Os pontos de partida teóricos foram as múltiplas abordagens de ensino, a aprendizagem situada e as comunidades de prática. Os resultados da pesquisa foram analisados com base na técnica da análise de conteúdo. Por meio desta técnica construímos sete categorias de análise, a saber: aprendizagem, avaliação, comunidade de prática, contexto sócio-histórico-cultural, educação, práticas de ensino e relação professor-aluno. Concluímos nessa pesquisa que as práticas de ensino à luz do construtivismo são inseridas na formação de gestores e de docentes por meio de microprocessos de aprendizagem que consideram o contexto sócio-histórico-cultural em que o aluno está inserido, que privilegiam a aprendizagem social e que incentivam a construção de comunidades de prática. Sendo assim, práticas de ensino que apreciam o contexto do aluno como os exercícios que buscam resolver problemas reais do dia-a-dia e a simulação realista, ou que visam unir teoria e prática como a visita técnica, o núcleo de pesquisa e os estudos de caso e que privilegiam o debate como a discussão de artigos e os seminários são práticas que podem ser chamadas de práticas construtivistas e são consideradas, pelos educadores que defendem a epistemologia construtivista, como as mais eficazes para a formação de gestores e docentes em Administração.

Observatório de gestão: investigação sobre práticas gerenciais em empresas brasileiras e sua relação com o desempenho

A relação entre as práticas gerenciais, a competitividade e o desempenho da empresa é um tema de grande interesse para pesquisadores dos campos de estratégia, gestão de operações, gestão de pessoas e estudos organizacionais. Esta pesquisa analisou a aplicação das práticas gerenciais nas empresas manufatureiras de pequeno e médio porte do Brasil. Ela foi desenvolvida a partir de um modelo de investigação desenvolvido por Bloom e Van Reenen (2007), e aplicado em diversos países. Foi utilizado um questionário semi-estruturado em entrevistas telefônicas com diretores de produção de uma amostra de empresas selecionadas a partir de critérios estatísticos. Esta pesquisa apresenta contribuições de natureza gerencial e acadêmica. Como contribuição gerencial, a pesquisa identifica diferenças entre as empresas brasileiras e as de empresas de países desenvolvidos, indicando trilhas para aperfeiçoamento das práticas administrativas. Como contribuição acadêmica, a pesquisa apresenta a aplicação no Brasil de metodologia de investigação mista, que combina métodos qualitativos e quantitativos. Além disso, o trabalho criou uma base de dados para futuras investigações sobre a relação entre as práticas gerenciais e o desempenho.