Arbeit per App – neue Abhängigkeiten in der Gig Economy

Standort - Im Zuge der fortschreitenden Digitalisierung entwickelt sich die Plattform-Ökonomie besonders dynamisch. Eine Unterform davon ist die Gig Economy, also die Vermittlung von Arbeit...     

The Advocacy Coalition Index: A new approach for identifying advocacy coalitions

Policy scholars have increasingly focused on collaborative and competitive relationships between stakeholder coalitions. The Advocacy Coalition Framework (ACF) in particular has directed scholarly attention toward such relationships. The ACF defines advocacy coalitions as groups of actors who share beliefs and coordinate their action. However, previous research has been inconsistent in defining and measuring coalitions, which has hampered comparative research and theory building. We present a method called the Advocacy Coalition Index, which measures belief similarity and the coordination of action in a manner that makes it possible to assess the extent to which advocacy coalitions are found in policy subsystems, whether subgroups resemble coalitions, and how individual actors contribute to coalition formation. The index provides a standardized method for identifying coalitions that can be applied to comparative research. To illustrate the effectiveness of the index, we analyze two climate change policy subsystems, namely Finland and Sweden, which have been shown to differ in terms of the association of belief similarity with coordination. We demonstrate that the index performs well in identifying the different types of subsystems, coalitions, and actors that contribute the most to coalition formation, as well as those involved in cross-coalition brokerage.     

SWEDEN AND L'ACADÉMIE DES SCIENCES

This article discusses the scientific relations between Sweden and France in the 18th century and how the Swedes had access to the new international scientific community that was building up with the new science academies. Contemporary honours accorded to the Swedes indicate who acquired entrance to the European scientific elite and why. International recognition was often tied to personal relations, patrons and foreign travels. P.‐L. M. de Maupertuis' expedition to the Arctic Circle in 1736–1737 was an influential event. But also other Swedes than the academy elite were present in French translations. A common denominator behind the interest accorded to both groups often seems to be related to the northernness of Sweden as a unique place for performing experiments and observations. New explanations (apart from the often appealling exoticism) are sought from the experimental and encyclopedistic nature of 18th‐century science and the implications of the widespread climate discource.     

NORTHERN REPLIES TO THE BRIAND MEMORANDUM IN 1930

The Briand Memorandum in 1930 was the most important effort to create stronger European political unity in the interwar period. The responses by the governments of Sweden, Finland and Estonia have not been studied before. It is convenient to study these replies together and focus on possible cooperation between neighbouring countries. Whilst France was using the Memorandum to europeanize her relations with Germany, Sweden, Finland and Estonia also adopted the Memorandum to their foreign policy. As a result a common policy towards the Memorandum could not be found, despite the fact that the three countries agreed on multiple issues.     

Optically stimulated luminescence dating of young fluvial deposits of the Middle Elbe River Flood Plains using different age models

In the last few decades optically stimulated luminescence (OSL) dating has become an important tool in geochronological studies. The great advantage of the method, i.e. dating the depositional age of sediments directly, can be impaired by incomplete bleaching of grains. This can result in a scattered distribution of equivalent doses (D_E), leading to incorrect estimation of the depositional age. Thoroughly tested protocols as well as good data analysis with adequate statistical methods are important to overcome this problem. In this study, samples from young fluvial sand and flood plain deposits from the Elbe River in northern Germany were investigated to compare its depositional ages from different age models with well-known historical dates. Coarse grain quartz (100–200 μm and 150–250 μm) and polymineral fine grains (4–11 μm) were dated using the single aliquot regenerative (SAR) dose protocol. The paleodose (D_P) was calculated from the DE data set using different approaches. Results were compared with the development of the Elbe River, which is well-documented by historical records and maps covering the last 1,000 years. Depending on the statistical approach it can be demonstrated that depositional ages significantly differ from the most likely depositional age. For the investigated coarse grain quartz samples all ages calculated from the MAM-3_UL, including their uncertainties, are within the historical documented age. Results of the polymineral fine grain samples are overestimating the historically documented depositional age, indicating undetectable incomplete bleaching. This study shows the importance of using an adequate statistical approach to calculate reliable OSL ages from fluvial sediments.     

Visible Men and Elusive Women

Early gender archaeology formulated two statements: men are visible, women are invisible, and men work in hard materials, women work in soft materials. We discuss these dichotomies in connection with nineteenth-century folklore and an excavated eighteenth-century cottage at a summer-farm. We conclude that much of the gendered order-of-work tasks broke down in pragmatic day-to-day life, especially by women crossing the gender border. However, social chaos was held at bay by ritual acts and magic objects.     

ON PITCHFORKS AND TOMAHAWKS*

ABSTRACT The core‐periphery model of the new economic geography has two “dramatic” implications: catastrophic agglomeration and locational hysteresis around the symmetry breaking level of trade freeness. In this note, we study a generalized version of this model with constant elasticity of substitution (CES) instead of Cobb‐Douglas upper tier preferences. The possibility of a continuous and easily reversible transition from symmetry to agglomeration now arises. One of the most prominent results of the new economic geography literature—the catastrophic consequences of small parameter changes—therefore, hinges crucially on specific functional forms for consumer preferences.     

Degradation of mud brick houses in an arid environment: a geoarchaeological model

A common assumption in Near Eastern tell archaeology is that the majority of sediments originate from degraded mud bricks. Little is known about the mechanism of mud brick wall degradation. Here we present a detailed macro- and microscopic ethnoarchaeological study of the degradation of a mud brick house and propose a comprehensive mechanism for tell formation processes in arid environments. The study took place in southern Israel by trenching a ca. 60 year old abandoned mud brick house, followed by extensive sediment sampling. Macroscopic observations showed that mud brick walls degrade by collapse of single bricks and/or collapse of intact wall parts, either inwards or outwards. In addition, infill sediments within the house and outside it, in close proximity to its walls, form alternating sedimentary layers of various colors and textures. The degraded mud brick material lost its distinctive macroscopic structure, which makes it impossible to accurately identify this material by field observations alone. Mineralogical and elemental analyses established the sources of the house infill sediments, namely mud bricks and wind blown sediments. Alternating layers mostly originate from mixing between degraded mud brick material and wind blown sediments. Micromorphological observations revealed microscopic mechanisms of mud brick degradation and include processes of mud slurry gravity flows, sediment coatings and infillings, wind abrasion of walls, small-scale puddling, and bioturbation. This study provides a working scheme for site formation of abandoned mud brick structures in arid environments. It provides a set of criteria by which it is possible to differentiate floors from post-abandonment sedimentary features and thus improves the reliability of activity area research.