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Sökning: WFRF:(Keil M.) > Samhällsvetenskap

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1.
  • Bixby, H., et al. (författare)
  • Rising rural body-mass index is the main driver of the global obesity epidemic in adults
  • 2019
  • Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 569:7755, s. 260-4
  • Tidskriftsartikel (refereegranskat)abstract
    • Body-mass index (BMI) has increased steadily in most countries in parallel with a rise in the proportion of the population who live in cities(.)(1,2) This has led to a widely reported view that urbanization is one of the most important drivers of the global rise in obesity(3-6). Here we use 2,009 population-based studies, with measurements of height and weight in more than 112 million adults, to report national, regional and global trends in mean BMI segregated by place of residence (a rural or urban area) from 1985 to 2017. We show that, contrary to the dominant paradigm, more than 55% of the global rise in mean BMI from 1985 to 2017-and more than 80% in some low- and middle-income regions-was due to increases in BMI in rural areas. This large contribution stems from the fact that, with the exception of women in sub-Saharan Africa, BMI is increasing at the same rate or faster in rural areas than in cities in low- and middle-income regions. These trends have in turn resulted in a closing-and in some countries reversal-of the gap in BMI between urban and rural areas in low- and middle-income countries, especially for women. In high-income and industrialized countries, we noted a persistently higher rural BMI, especially for women. There is an urgent need for an integrated approach to rural nutrition that enhances financial and physical access to healthy foods, to avoid replacing the rural undernutrition disadvantage in poor countries with a more general malnutrition disadvantage that entails excessive consumption of low-quality calories.
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2.
  • Mishra, A, et al. (författare)
  • Diminishing benefits of urban living for children and adolescents' growth and development
  • 2023
  • Ingår i: Nature. - : Springer Science and Business Media LLC. - 1476-4687 .- 0028-0836. ; 615:7954, s. 874-883
  • Tidskriftsartikel (refereegranskat)abstract
    • Optimal growth and development in childhood and adolescence is crucial for lifelong health and well-being1–6. Here we used data from 2,325 population-based studies, with measurements of height and weight from 71 million participants, to report the height and body-mass index (BMI) of children and adolescents aged 5–19 years on the basis of rural and urban place of residence in 200 countries and territories from 1990 to 2020. In 1990, children and adolescents residing in cities were taller than their rural counterparts in all but a few high-income countries. By 2020, the urban height advantage became smaller in most countries, and in many high-income western countries it reversed into a small urban-based disadvantage. The exception was for boys in most countries in sub-Saharan Africa and in some countries in Oceania, south Asia and the region of central Asia, Middle East and north Africa. In these countries, successive cohorts of boys from rural places either did not gain height or possibly became shorter, and hence fell further behind their urban peers. The difference between the age-standardized mean BMI of children in urban and rural areas was <1.1 kg m–2 in the vast majority of countries. Within this small range, BMI increased slightly more in cities than in rural areas, except in south Asia, sub-Saharan Africa and some countries in central and eastern Europe. Our results show that in much of the world, the growth and developmental advantages of living in cities have diminished in the twenty-first century, whereas in much of sub-Saharan Africa they have amplified.
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3.
  • Kehoe, Laura, et al. (författare)
  • Make EU trade with Brazil sustainable
  • 2019
  • Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 364:6438, s. 341-
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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5.
  • Mähring, Magnus, et al. (författare)
  • De-escalating IT Projects: The DMM Model
  • 2009
  • Ingår i: Communications- ACM. - : ACM Association for Computing Machinery. - 0001-0782. ; 52:10, s. 131-134
  • Tidskriftsartikel (refereegranskat)abstract
    • Taming runaway Information Technology (IT) projects is a challenge that most organizations have faced and that managers continue to wrestle with. These are projects that grossly exceed their planned budgets and schedules, often by a factor of 2--3 fold or greater. Many end in failure; failure not only in the sense of budget or schedule, but in terms of delivered functionality as well. Runaway projects are frequently the result of escalating commitment to a failing course of action, a phenomenon that occurs when investments fail to work out as envisioned and decision-makers compound the problem by persisting irrationally. Keil, Mann, and Rai reported that 30--40% of IT projects exhibit some degree of escalation. To break the escalation cycle, de-escalation of commitment to the failing course of action must occur so that valuable resources can be channeled into more productive use. But, making de-escalation happen is neither easy nor intuitive. This article briefly examines three approaches that have been suggested for managing de-escalation. By combining elements from the three approaches, we introduce a de-escalation management maturity (DMM) model that provides a useful framework for improving practice.
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6.
  • Mähring, Magnus, et al. (författare)
  • Paradoxes and the nature of ambidexterity in IT transformation programs
  • 2015
  • Ingår i: Information Systems Research. - : INFORMS (Institute for Operations Research and Management Sciences). - 1047-7047 .- 1526-5536. ; 26:1, s. 57-80
  • Tidskriftsartikel (refereegranskat)abstract
    • Though information technology (IT) transformation programs are gaining in importance, we know little about the nature of the challenges involved in such programs and how to manage them. Using grounded theory methodology, we conducted a multiyear case study of a large IT transformation program in a major commercial bank, during which we encountered the interrelated themes of paradoxes and ambidexterity. Grounded in our case, we construct a substantive theory of ambidexterity in IT transformation programs that identifies and explains the paradoxes that managers need to resolve in IT transformation programs. The ambidexterity areas we identified are (1) IT portfolio decisions (i.e., IT efficiency versus IT innovation), (2) IT platform design (i.e., IT standardization versus IT differentiation), (3) IT architecture change (i.e., IT integration versus IT replacement), (4) IT program planning (i.e., IT program agility versus IT project stability), (5) IT program governance (i.e., IT program control versus IT project autonomy), and (6) IT program delivery (i.e., IT program coordination versus IT project isolation). What weaves these six areas together is the combined need for IT managers to employ ambidextrous resolution strategies to ensure short-term IT contributions and continuous progress of IT projects while simultaneously working toward IT transformation program success as a foundation for IT-enabled business transformation. However, in addition to this commonality, we find that the nature of paradoxical tensions differs across the six areas and requires slightly different management strategies for paradox resolution. Ambidexterity areas (1), (2), and (3) are associated with IT transformation strategizing and, in addition to balancing short- and long-term goals, require the mutual accommodation and blending of business and IT interests in the spirit of IT-business partnering to achieve IT-enabled business change and IT-based competitiveness. Ambidexterity areas (4), (5), and (6) are associated with IT program and project execution and, in addition to balancing short- and long-term requirements, require a recurrent and dynamic act of balancing "local" needs at the IT project level and "global" needs at the IT program level.
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  • Resultat 1-6 av 6

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