1,721,205 research outputs found

    Lockdown farmers markets in Bengaluru: Direct marketing activities and potentials for rural-urban linkages in the food system

    No full text
    Rural-urban linkages are vital elements in a sustain­able food system. As the COVID-19 pandemic unfolded, supply chains were disrupted and fear of infection impacted food shopping decisions, push­ing consumers to seek local and safer options for procuring fresh produce. Direct marketing arose as a promising alternative for both consumers and producers. We undertook a study in Bengaluru, India, in order to understand what direct marketing activities have unfolded with the COVID-19 pan­demic. Media reports highlighted the plight of farmers struggling to market their harvest during lockdown as well as the farm to fork initiatives and lockdown farmers markets that have been created as a response. We see this moment as an opportu­nity to develop Bengaluru’s food system to be more sustainable, specifically through the City Region Food System framework. This study conducted online and telephone surveys with both consumers and producers in Bengaluru to explore the elements of supply and demand that have fos­tered and hindered direct marketing schemes. We found that consumers are interested in sourcing fruits and vegetables directly from farmers, but communi­cation and logistics between consumers and pro­ducers are major hindrances. Although producers are diversifying their marketing strate­gies, they need to be implemented at economically viable scales to ensure long-term success. We find that the role of technology, specifically messaging apps, can streamline direct marketing activities and remove the barriers that currently hamper rural-urban linkages. Further­more, existing community and farmer organiza­tions have the size and scale to make direct marketing schemes a worthy endeavor for both consumers and producers

    Food consumption pattern and Body Mass Index assessment along rural-urban interface of the South Indian mega city of Bangalore

    No full text
    Food consumption pattern are predictors of health and nutritional status. Bangalore is one of the rapidly urbanizing South Indian megacity with a population of 11 millions. Study highlights gradient changes with reference to food consumption pattern and Body Mass Index (BMI) among households in the rural-urban interface of Bangalore. A total of 300 middle income households were selected by purposive random sampling technique. Standardized schedule was used to collect information on food consumption pattern and BMI using standard protocols. Consumption of energy dense foods was significantly more than adequacy. Average dietary diversity score was less than 50 per cent which is indicative of routinely consumption of only few food groups among households. Fried (51.4%) and Readyto- eat (51.0%) foods consumption was more frequent in rural. Prevalence of overweight (24.5%) and obesity was more in urban (7.1%). Overall, incidences of overweight and obesity were more compared to underweight. This reveals, that there is a need for intervention and promotion of diversified and functional foods to address overweight and obesity, which are the root causes for non-communicable diseases in order to protect health and nutritional status of individuals along rural-urban interface of Bangalore

    Carbon-efficient virtual machine placement based on dynamic voltage frequency scaling in geo-distributed cloud data centers

    No full text
    The tremendous growth of big data analysis and IoT (Internet of Things) has made cloud computing an integral part of society. The prominent problem associated with data centers is the growing energy consumption, which results in environmental pollution. Data centers can reduce their carbon emissions through efficient management of server power consumption for a given workload. Dynamic voltage frequency scaling (DVFS) can be applied to control the operating frequencies of the servers based on the workloads assigned to them, as this approach has a cubic increment relationship with power consumption. This research work proposes two DVFS-enabled host selection algorithms for virtual machine (VM) placement with a cluster selection strategy, namely the carbon and power-efficient optimal frequency (C-PEF) algorithm and the carbon-aware first-fit optimal frequency (C-FFF) algorithm. The main aims of the proposed algorithms are to balance the load among the servers and dynamically tune the cooling load based on the current workload. The cluster selection strategy is based on static and dynamic power usage effectiveness (PUE) values and the carbon footprint rate (CFR). The cluster selection is also extended to non-DVFS host selection policies, namely the carbon-and power-efficient (C-PE) algorithm, carbon-aware first-fit (C-FF) algorithm, and carbon-aware first-fit least-empty (C-FFLE) algorithm. The results show that C-FFF achieves 2% more power reduction than C-PEF and C-PE, and demonstrates itself as a power-efficient algorithm for CO2 reduction, retaining the same quality of service (QoS) as its counterparts with lower computational overheads

    Going Beyond Counting First Authors in Author Co-citation Analysis

    Full text link
    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

    Full text link
    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

    Full text link
    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Dispelling the Myths Behind First-author Citation Counts

    Full text link
    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Author Index

    No full text
    Nao informado
    corecore