Social theory, photography and the visual aesthetic of cultural modernity

Social theory and photographic aesthetics both engage with issues of representation, realism and validity, having crossed paths in theoretical and methodological controversies. This discussion begins with reflections on the realism debate in photography, arguing that beyond the polar positions of realism and constructivism the photographic image is essentially ambivalent, reflecting the ways in which it is situated within cultural modernity. The discussion draws critically on Simmel’s sociology of the visual to elucidate these issues and compares his concept of social forms and their development with the emergence of the photograph. Several dimensions of ambivalence are elaborated with reference to the politics and aesthetics of socially engaged photography in the first half of the twentieth century. It presents a case of the autonomy of the photographic as a social form that nonetheless has the potential to point beyond reality to immanent possibilities. The discussion exemplifies the processes of aesthetic formation with reference to the ‘New Vision’ artwork of László Moholy-Nagy and the social realism of Edith Tudor Hart

Regulation of gastric acid secretion in situ by an endogenous activator protein: Studies with activator-specific antibody

Monospecific polyclonal antibody was raised against a homogenous preparation of endogenous activator protein (HAF) for the gastric H+,K+-ATPase system. Antibody was used to assess the regulatory role of the HAF in gastric acid secretion by isolated rabbit glands in situ. Immunohistochemical studies revealed aredistribution of theHAFtowards discrete intracellular zones following stimulation of the glands with histamine. The antibody, when inserted into the stimulated gastric glands by digitonin permeabilization, could effectively block the acid forming ability of the cells. The data offers, for the first time, some concrete in situ evidence for the role of the HAF as an intracellular regulator of gastric H+ transport .The manuscript was written (in the early 1990) soon after the data were collected, but never submitted to a journal with the hope of getting better gel picture and fluorescent micrograph which did not materialize due to unavoidable circumstances

Badges and Gamification In eLearning: Effects on Achievement And Engagement

The use of digital badges and gamification strategies to increase student engagement and achievement in eLearning environments is investigated. Badges serve as visual representations of achievement, and they can be used as achievement identifiers in eLearning environments. Gamification strategies include the use of typical game playing elements (points, leaderboards, etc.) in non-game activities. After an extensive literature review, the authors provide data from a recent pilot study of the implementation of digital badges and gamification strategies in two eLearning courses composed of 52 students offered in the spring of 2016 at a university in the Southeastern United States. Student engagement, participation, and achievement was investigated, with results showing that the use of the strategies employed did increase engagement in the courses as well as achievement. Results from the pilot also indicate a need for further investigation to compare with courses that do not incorporate these strategies

Raychaudhuri equation in the self-consistent Einstein-Cartan theory with spin-density

The physical implications of the Raychaudhuri equation for a spinning fluid in a Riemann-Cartan spacetime is developed and discussed using the self-consistent Lagrangian based formulation for the Einstein-Cartan theory. It was found that the spin-squared terms contribute to expansion (inflation) at early times and may lead to a bounce in the final collapse. The relationship between the fluid's vorticity and spin angular velocity is clarified and the effect of the interaction terms between the spin angular velocity and the spin in the Raychaudhuri equation investigated. These results should prove useful for studies of systems with an intrinsic spin angular momentum in extreme astrophysical or cosmological problems

The Institute of Archaeology & Siegfried H. Horn Museum Newsletter Volume 28.1

Tall al-\u27Umayri 2006, Larry G. Herr ASOR 2006, Paul J. Ray, Jr. Transitions, Paul J. Ray, Jr. Al-Maktába: The Bookstore Random Surveyhttps://digitalcommons.andrews.edu/iaham-news/1029/thumbnail.jp