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- Frenken, Koen, et al.
(författare)
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An Institutional Logics Perspective on the Gig Economy
- 2020
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Ingår i: Theorizing the Sharing Economy: Variety and Trajectories of New Forms of Organizing. - 9781787561793 - 9781787561809 ; 66, s. 83-105
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Bokkapitel (refereegranskat)abstract
- We witness rising tensions between online gig-economy platforms, incumbent firms, regulators, and labor unions. In this chapter, we use the framework of institutional logics as an analytical lens and scheme to understand the fundamental institutional challenges prompted by the advent of the online gig economy. We view gig-economy platforms as corporations that organize and self-regulate markets. In doing so, they span two parallel markets: the market for platforms competing to provide intermediation services and the market for the self-employed competing on platforms to provide peer-to-peer services. Self-regulation by platforms also weakens the traditional roles of the state. While the corporation and market logics empower the platform, they weaken self-employed suppliers as platforms’ design constrain suppliers to grow into a full-fledged business by limiting their entrepreneurial freedom. At the same time, current labor law generally does not classify suppliers as employees of the platform company, which limits the possibility to unionize. The current resolutions to this institutional misalignment are sought in “band aid solutions” at the level of sectors. Instead, as we argue, macro-institutional reform may be needed to re-institutionalize gig work into established institutional logics.
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| 2. |
- Latth, Johanna, et al.
(författare)
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Effects of internet-delivered cognitive behavioral therapy on use of child sexual abuse material : A randomized placebo-controlled trial on the Darknet
- 2022
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Ingår i: Internet Interventions. - : Elsevier. - 2214-7829. ; 30
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Tidskriftsartikel (refereegranskat)abstract
- Introduction: The use of child sexual abuse material (CSAM) is an international public health and child protection challenge.Objective: To investigate whether Prevent It, a therapist-supported, internet-delivered, eight-week, cognitive behavioral therapy, reduces CSAM viewing among users.Methods: We conducted a global online single-blind (participants), parallel-group, superiority, randomized, psychological placebo-controlled trial with a one-month follow-up, 2019-2021 (ISRCTN76841676). We recruited anonymous participants, mainly from Darknet forums. Inclusion criteria: age 18+ years, past week CSAM use, and sufficient English language skills; exclusion criteria: severe psychiatric illness or non-serious intent to participate. The main outcome was change in self-reported, weekly viewing time from pre-to post-treatment, according to the Sexual Child Molestation Risk Assessment+.Results: A total of 160 participants (157 male, 2 non-binary, and 1 not reporting gender) from all world regions (age intervals [%]: 18-29 [49]; 30-39 [30]; 40-49 [15]; 50-59 [6]) were randomized (1:1) to Prevent It (N = 80) or Placebo (N = 80). Between-group, intention-to-treat analyses suggested a significantly larger decrease in viewing time in Prevent It participants vs. controls pre-to post-treatment (Prevent It: N = 76, Placebo: N = 78, estimate-0.25, 95 % CI,-0.46 to-0.04, p = .017, Cohen's d 0.18). Negative side effects from treatment were fewer in Prevent It compared to control participants and neither group reported severe adverse events.Conclusion: We provide initial support for the feasibility, efficacy, and safety of Prevent It to reduce CSAM viewing among motivated users. Further research is needed to validate these findings.
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| 3. |
- Oberg, Johanna, et al.
(författare)
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Age related changes in brain metabolites observed by 1H MRS in APP/PS1 mice
- 2008
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Ingår i: Neurobiology of Aging. - : Elsevier BV. - 0197-4580 .- 1558-1497. ; 29:9, s. 1423-1433
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Tidskriftsartikel (refereegranskat)abstract
- Translational biomarkers in Alzheimer's disease based on non-invasive in vivo methods are highly warranted. (1)H magnetic resonance spectroscopy (MRS) is non-invasive and applicable in vivo in both humans and experimental animals. In vivo(1)H MRS and 3D MRI were performed on brains of double transgenic (tg) mice expressing a double mutant human beta-amyloid precursor protein APP(K670N,M671L) and human mutated presenilin gene PS1M146L, and wild-type (wt) littermates at 2.5, 6.5 and 9 months of age using a 9.4T magnet. For quantification, LCModel was used, and the data were analyzed using multivariate data analysis (MVDA). MVDA evidenced a significant separation, which became more pronounced with age, between tg and wt mice at all time points. While myo-inositol and guanidoacetate were important for group separation in young mice, N-acetylaspartate, glutamate and macrolipids were important for separation of aged tg and wt mice. Volume segmentation revealed that brain and hippocampus were readily smaller in tg as compared to wt mice at the age of 2.5 months. Amyloid plaques were seen in 6.5 and 9 months, but not in 2.5 months old animals. In conclusion, differences in brain metabolites could be accurately depicted in tg and wt mice in vivo by combining MRS with MVDA. First differences in metabolite content were readily seen at 2.5 months, when volume defects in tg mice were present, but no amyloid plaques.
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