Rethinking the sharing economy:The nature and organization of sharing in the 2015 refugee crisis

Our paper focuses on a non-standard sharing example that harbors the potential to disrupt received wisdom on the sharing economy. While originally entering the field to analyze, broadly from a governance perspective, how the 2015 refugee crisis was handled in Vienna, Austria, we found that the non-governmental organization Train of Hope - labeled as a "citizen start-up" by City of Vienna officials - played an outstanding role in mastering the crisis. In a blog post during his visit in Vienna at the time, and experiencing the refugee crisis first-hand, it was actually Henry Mintzberg who suggested reading the phenomenon as part of the "sharing economy". Continuing this innovative line of thought, we argue that our unusual case is in fact an excellent opportunity to discover important aspects about both the nature and organization of sharing. First, we uncover an additional dimension of sharing beyond the material sharing of resources (i.e., the economic dimension): the sharing of a distinct concern (i.e., the moral dimension of sharing). Our discovery exemplifies such a moral dimension that is rather different from the status quo materialistic treatments focusing on economic transactions and property rights arguments. Second, we hold that a particular form of organizing facilitates the sharing economy: the sharing economy organization. This particular organizational form is distinctive - at the same time selectively borrowing and skillfully combining features from platform organizations (e.g., use of technology as an intermediary for exchange and effective coordination, ability to tap into external resources) and social movements (e.g., mobilization, shared identity, collective action). It is a key quality of this form of organization to enable the balancing of the two dimensions inherent in the nature of sharing: economic and moral. Our paper contributes to this Special Issue of the Academy of Management Discoveries by highlighting and explaining the two-fold economic and moral nature of sharing and the organization of sharing between movement and platform

Intra-arterial tert-Butyl-Hydroperoxide Infusion Induces an Exacerbated Sensory Response in the Rat Hind Limb and is Associated with an Impaired Tissue Oxygen Uptake

The objective of this study was to investigate oxidative stress and oxygen extraction mechanisms in an animal model of continuous intra-arterial infusion of a free radical donor and in an in vitro model using isolated mitochondria. tert-Butyl-hydroperoxide (tert-BuOOH, 25 mM) was infused for 24 h in the left hind limb of rats to induce soft tissue damage (n = 8). After 7 days, we assessed local sensory response, tissue oxygen consumption, oxygen radicals, and antioxidant levels. In vitro mitochondrial function was measured after stimulation of isolated mitochondria of skeletal muscle cells with increasing doses of tert-BuOOH. tert-BuOOH infusion resulted in an increased skin temperature (p = 0.04), impaired function, and a significantly increased pain sensation (p = 0.03). Venous oxygen saturation levels (p = 0.01) and the antioxidant ceruloplasmin (p = 0.04) were increased. tert-BuOOH inhibited mitochondrial function in vitro. Induction of free radical formation in the rat hind limb results in an exacerbated sensory response and is associated with impaired oxygen extraction, which likely results from mitochondrial dysfunction caused by free radicals

The logic of tact:How decisions happen in situations of crisis

The mass-migration of refugees in the fall 2015 posed an immense humanitarian and logistical challenge: exhausted from their week-long journeys, refugees arrived in Vienna in need of care, shelter, food, medical aid, and onward transport. The refugee crisis was managed by an emerging polycentric and inter-sectoral collective of organizations. In this paper, we investigate how, during such a situation, leaders of these organizations made decisions in concert with each other and hence sustained the collective's capacity to act collectively. We ask: what was the logic of decision-making that orchestrated collective action during the crisis? In answering this question, we make the following contribution: departing from March's logics of consequences and appropriateness as well as Weick's work on sensemaking during crisis, we introduce an alternative logic that informed decision-making: the logic of tact. With this concept we (a) offer a better understanding of how managers make decisions under the condition of bounded rationality and the simultaneous transgression of their institutional identity in situations of crisis; and we (b) show that in decision-making under duress cognition is neither ahead of action, nor is action ahead of cognition; rather, tact explicates the rapid switching between cognition and action, orchestrating decision-making through this interplay

Rethinking the sharing economy : the nature and organization of sharing in the 2015 refugee crisis

International audienceOur article focuses on a non-standard sharing example that harbors the potential to disrupt received wisdom on the sharing economy. Although, originally, entering the field to analyze, broadly from a governance perspective, how the 2015 refugee crisis was handled in Vienna, Austria, we found that the non-governmental organization Train of Hope—labeled as a ‘citizen start-up’ by the City of Vienna officials—played an outstanding role in mastering the crisis. In a blog post during his visit in Vienna at the time, and experiencing the refugee crisis first-hand, it was actually Henry Mintzberg who suggested reading the phenomenon as part of the ‘sharing economy’. Continuing this innovative line of thought, we argue that our unusual case is in fact an excellent opportunity to discover important aspects about both the nature and organization of sharing. First, we uncover an additional dimension of sharing beyond the material sharing of resources (i.e., the economic dimension): the sharing of a distinct concern (i.e., the moral dimension of sharing). Our discovery exemplifies such a moral dimension that is rather different from the status quo materialistic treatments focusing on economic transactions and property rights arguments. Second, we hold that a particular form of organizing facilitates the sharing economy: the sharing economy organization (SEO). This particular organizational form is distinctive—at the same time selectively borrowing and skillfully combining features from platform organizations (e.g., use of technology as an intermediary for exchange and effective coordination, ability to tap into external resources) and social movements (e.g., mobilization, shared identity, collective action). It is a key quality of this form of organization to enable the balancing of the two dimensions inherent in the nature of sharing: economic and moral. Our article contributes to this special issue of the Academy of Management Discoveries by highlighting and explaining the two-fold economic and moral nature of sharing and the organization of sharing between movement and platform.<br/

Volar fixed-angle plating of distal radius extension fractures: influence of plate position on secondary loss of reduction: a biomechanic study in a cadaveric model

Purpose: Treatment of extension fractures of the distal radius with volar fixed-angle plates has become increasingly popular in the past 2 years. It has been observed clinically that placement of the distal screws as close as possible to the subchondral zone is crucial to maintain radial length after surgery. The purposes of this study were (1) to evaluate radial shortening after plating with regard to plate position and (2) to evaluate whether plate position has an influence on the strength and rigidity of the plate–screw construct.\ud \ud Methods: An extra-articular fracture (AO classification, A3) was created in 7 pairs of fresh-frozen human cadaver radiuses. The radiuses then were plated with a volar distal radius locking compression plate. Seven plates were applied subchondrally; 7 plates were applied 4.5 mm to 7.5 mm proximal to the subchondral zone. The specimens were loaded with 800-N loads for 2,000 cycles to evaluate radial shortening in the 2 groups. Each specimen then was loaded to failure.\ud \ud Results: Radial shortening was significantly greater when the distal screws were placed proximal to the subchondral zone. The amount of shortening after cyclic loading correlated significantly with the distance the distal screws were placed from the subchondral zone. Rigidity of the plate systems was significantly higher in radiuses in which the distal screws were placed close to the subchondral zone.\ud \ud Conclusions: To maintain radial length after volar fixed-angle plating, placement of the distal screws as subchondral as possible is essential. The subchondral plate–screw–bone constructs showed significantly greater rigidity, indicating higher resistance to postoperative loads and displacement forces

Volar fixed-angle plating of extra-articular distal radius fractures: a biomechanical analysis comparing threaded screws and smooth pegs

Background: Distal radius fractures represent the most common fractures in adult individuals. Volar fixed-angle plating has become a popular modality for treating unstable distal radius fractures. Most of the plates allow insertion of either threaded locking screws or smooth locking pegs. To date, no biomechanical studies compare locking screws and pegs under axial and torsional loading.\ud \ud Methods: Ten Sawbones radii were used to simulate an AO/OTA A3 fracture. Volar fixed-angle plates (Aptus Radius 2.5, Medartis, Switzerland) with threaded locking screws (n = 5) or smooth locking pegs (n = 5) were used to fix the distal metaphyseal fragment. Each specimen was tested under axial compression and under torsional load with a servohydraulic testing machine. Qualitative parameters were recorded as well as axial and torsional stiffness, torsion strength, energy absorbed during monotonic loading and energy absorbed in one cycle.\ud \ud Results: Axial stiffness was comparable between both groups (p = 0.818). If smooth pegs were used, a 17% reduction of torsional stiffness (p = 0.017) and a 12% reduction of minimum torque (p = 0.012) were recorded. A 12% reduction of energy absorbed (p = 0.013) during monotonic loading and unloading was recorded if smooth pegs were used. A 34% reduction of energy absorbed in one cycle (p < 0.007) was recorded if threaded screws were used. Sliding of the pegs out of the distal radius metaphyses of the synthetic bones was recorded at a mean torque of 3.80 Nm ± 0.19 Nm. No sliding was recorded if threaded screws were used.\ud \ud Conclusions: According to the results of this study using Sawbones, volar fixed-angle plates with threaded locking screws alone are mechanically superior to volar fixed-angle plates with smooth locking pegs alone under torsional loading