Social influence in charitable giving.

Charities often publicize generous contributions as a fund-raising strategy to encourage individuals to donate more. This paper presents a laboratory experiment to analyze the effect of social influence in charitable giving. I conjecture that different types of social information about other donors’ decisions will have different positive effects on donations, both to increase the proportion of positive donations and the total donations contribution. In a sample of one hundred and twenty one university students, social information regarding the mode contribution and information about randomly chosen contribution suggestively increases the proportion of positive donations and total donation amount. However, neither effect is statistically significant in this experimental design

Свечение очагов оптического пробоя воздуха

Представлены результаты анализа процесса взаимодействия лазерного излучения с плазмой оптического пробоя воздуха, приводящего к образованию рентгеновской и электронной радиации, ответственной за образование газового ореола NO[2] вокруг очагов пробоя

Responses of Appetite and Appetite Regulating Hormones to Acute Altitude Exposure

PURPOSE: To determine the acute response of appetite and appetite regulating hormones after exposure to simulated altitude in resting conditions. METHODS: Seven male and six female recreationally active subjects (height 178±8.1cm, weight: 77.3±24.8kg, body fat: 18.4±5.7%) participated in two, three-hour trials in an environmental chamber with one trial simulating 5000 m altitude (hypoxic) and the other simulating 350 m altitude (control). Blood samples from the antecubital vein were collected prior to entering the environmental chamber and immediately following the three hours of seated rest. Blood samples were analyzed for serum leptin, adiponectin, and ghrelin concentrations via enzyme-linked immunosorbent assay kits. Subjective feelings of acute mountain sickness and perceived appetite were also assessed. Heart rate, blood oxygenation, tissue oxygenation, respiration rate, and whole body gases were also analyzed throughout the trials. RESULTS: Satiety decreased over time in both trials (pCONCLUSION:Subjective appetite does not appear to be affected with acute hypoxic exposure despite alterations in oxygen transport. However, acute hormonal response may not be immediately apparent from subjective measures of appetite, and thus analysis of these hormones remains paramount to this project

Perichoretic Worship: Cultivating Relationships with the Triune God, with One Another, and with the World

A Participatory Action Research (PAR) study focusing on perichoretic worship as a way of cultivating holy relationship with the Triune God, with others, and with the world. Theoretical lenses include ritual studies, Faith Development Theory, and personhood in social relationships. Theological lenses include perichoresis, Lutheran worship, and faith practices. Using both quantitative and qualitative research, the study explores the practice of Christian worship in a large Lutheran congregation and seeks to grow active participation in the missional work of the Triune God through worship grounded in Word and Sacrament. Presents the Triune God as the active subject of Christian worship

Business in Nebraska #292 - January 1969

Changing Patterns of Communities in the Midwest (Dorothy Switzer) The regional concept of economic planning and development discussed in the December issue of Business in Nebraska was the subject also of a workshop conference on Changing Patterns of People and Communities in the Midwest, held in Omaha last month. It is deemed appropriate to report here the most significant highlight of the conference because the panel presentations and subsequent discussions further developed several important apects of regional growth. Business Summary (R. L. Busboom) Both Physical Volume and Dollar Volume Indexes for Nebraska indicate that the October, 1968 level of business activity was above that of October, 1967. For the U.S. these indexes increased over the same period at a rate slightly more than Nebraska\u27s. From September, 1968, to October, 1968, Nebraska\u27s dollar and physical volumes fell, being down about 1.6 percent. The indexes for the U.S. show some increase, with physical volume up 2.1% and dollar volume up 3.4%. Review

The Quest for “How to do Hybrid right”:Moving Beyond Compensating Asymmetries to Experience-Driven Cooperation

Hybrid work has become increasingly popular in the aftermath of the Covid-19 pandemic. Despite its popularity, many organisations still strive to find an answer to “how to do hybrid cooperation right”. Enabling collaboration across digital and physical workspaces, participants, and practices is a great challenge, as it inevitably introduces asymmetric relations, incongruences in frames of reference, and misaligned ecosystems and technical infrastructures. The paper investigates approaches used to manage asymmetries in hybrid work settings and their impact on cooperation. Through a multi-sited ethnographic study, we reveal a prevalent reliance on mimicking tools and practices native to fully physical or fully digital settings in the hybrid space. These mimicking practices often arise because the hybrid work setting is viewed through a deficit lens, whereby it is perceived as lacking certain elements (e.g., body, voice, mobility) and access to modalities from especially the physical setting, thereby necessitating the need for compensation work. To provide vocabulary to conceptualize and articulate this type of practice, we introduce the concept compensation work, referring to work that is carried out to offset a deficiency or absence that has been identified, aiming to restore and re-establish a familiar state that has vanished. While compensating through mimicking is intuitive, such approaches assume that our known practices and interactions from the physical workspace can indeed be translated to another context, neglecting the fact that changing the medium inevitably impacts the message. Thus, cooperative practices and interactions taking place in the physical workspace do not remain the same when unfolding in the hybrid space. Finally, we suggest that in order to design technologies and practices that support hybrid cooperation we first need to acknowledge the hybrid workspace as a distinct “third space” next to the fully remote and fully physical workspace. This includes following an experience-driven approach to hybrid cooperation, encouraging the design of innovative interactions that extend beyond merely compensating for asymmetries and leveraging the unique capabilities and affordances of these settings

X-ray backscatter radiography with lower open fraction coded masks

Copyright 2017 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.Single sided radiographic imaging would find great utility for medical, aerospace and security applications. While coded apertures can be used to form such an image from backscattered X-rays they suffer from near field limitations that introduce noise. Several theoretical studies have indicated that for an extended source the images signal to noise ratio may be optimised by using a low open fraction (<0.5) mask. However, few experimental results have been published for such low open fraction patterns and details of their formulation are often unavailable or are ambiguous. In this paper we address this process for two types of low open fraction mask, the dilute URA and the Singer set array. For the dilute URA the procedure for producing multiple 2D array patterns from given 1D binary sequences (Barker codes) is explained. Their point spread functions are calculated and their imaging properties are critically reviewed. These results are then compared to those from the Singer set and experimental exposures are presented for both type of pattern; their prospects for near field imaging are discussed