Too much of a good thing
Mark A. Sutton,Oene Oenema,Jan Willem Erisman,Adrian Leip,Hans van Grinsven,Wilfried Winiwarter +5 more
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Curbing nitrogen emissions is a central environmental challenge for the twenty-first century, argue Mark Sutton and his colleagues.Abstract:
Curbing nitrogen emissions is a central environmental challenge for the twenty-first century, argue Mark Sutton and his colleagues.read more
Citations
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Journal ArticleDOI
Plant nitrogen assimilation and use efficiency.
TL;DR: The limiting factors in plant metabolism for maximizing NUE are different at high and low N supplies, indicating great potential for improving the NUE of current cultivars, which were bred in well-fertilized soil.
Journal ArticleDOI
A Global Assessment of the Water Footprint of Farm Animal Products
TL;DR: In this paper, the authors provided a comprehensive account of the water footprint of animal products, considering different production systems and feed composition per animal type and country, and showed that from a freshwater perspective, animal products from grazing systems have a smaller blue and grey water footprint than products from industrial systems, and that it is more water efficient to obtain calories, protein and fat through crop products than animal products.
BookDOI
Sociality Through Social Network Sites
Nicole B. Ellison,danah boyd +1 more
TL;DR: In this article, the authors report authoritative insights into one of the most significant developments related to social interaction and offer an analytic framework for exploring these new sites, while underscoring the centrality of social interaction since the Internet's earliest days, such as through email.
Journal ArticleDOI
How Does Brand-related User-generated Content Differ across YouTube, Facebook, and Twitter?
TL;DR: In this article, the authors test hypotheses regarding differences in brand-related user-generated content (UGC) between Twitter (a microblogging site), Facebook (a social network) and YouTube (a content community) using data from a content analysis of 600 UGC posts for two retail-apparel brands.
Journal ArticleDOI
Entrepreneur Passion And Preparedness In Business Plan Presentations: A Persuasion Analysis Of Venture Capitalists' Funding Decisions
TL;DR: This paper investigated the extent to which venture capitalists' perceptions of "entrepreneurial passion" influence the VCs' investment decisions, and defined entrepreneurial passion as an entrepreneurial pursuit.
References
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Journal ArticleDOI
The CES-D Scale: A Self-Report Depression Scale for Research in the General Population
TL;DR: The CES-D scale as discussed by the authors is a short self-report scale designed to measure depressive symptomatology in the general population, which has been used in household interview surveys and in psychiatric settings.
Journal ArticleDOI
Measuring individual differences in empathy: Evidence for a multidimensional approach.
TL;DR: In this paper, the authors used the Interpersonal Reactivity Index (IRI) to facilitate a multidimensional approach to empathy, which includes four subscales: Perspective-Taking (PT), Fantasy (FS), Empathic Concern (EC), and Personal Distress (PD).
Journal ArticleDOI
Illusion and well-being: a social psychological perspective on mental health
TL;DR: Research suggesting that certain illusions may be adaptive for mental health and well-being is reviewed, examining evidence that a set of interrelated positive illusions—namely, unrealistically positive self-evaluations, exaggerated perceptions of control or mastery, and unrealistic optimism—can serve a wide variety of cognitive, affective, and social functions.
Book
Analysis of Panel Data
TL;DR: In this paper, the authors propose a homogeneity test for linear regression models (analysis of covariance) and show that linear regression with variable intercepts is more consistent than simple regression with simple intercepts.
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