Fake News, Information Herds, Cascades and Economic Knowledge

The paper addresses the issue of “fake news” through a well-known and widely studied experiment that illustrates a possible science behind the phenomenon. Public news is viewed as an aggregation of decentralized pieces of valuable information about complex events. Such systems rely on accumulated investment in trust in news sources. In the case of fake news, news source reliability is not known. The experiment demonstrates how fake news can destroy both the investment in trust and also the benefits that news provides

The effect of thyroid hormone on the expression of A7 myosin heavy chain mRNA in xenopus laevis

It has long been known that thyroid hormone (TH) is responsible for metamorphosis in tadpoles. It is also known that A7 MHC, an adult muscle isoform, is expressed in adult Xenopus laevis frogs, but not in larvae. Furthermore, the appearance of A7 corresponds with the onset of metamorphosis. The present study investigated the relationship between TH and the expression of A7 MHC mRNA in Xenopus laevis. Isolated tails in culture and 6-n-propyl 2-thiouracil (PTU) treated tails were treated with TH and the presence of A7 mRNA analyzed with in-situ hybridization, and RT-PCR. It was found that TH caused substantial regression of tails. It was also found that A7 was expressed in tails treated with TH and was located primarily in a region rich in slow twitch fibers near the base of the tadpole tail. Finally, A7 is also expressed in PTU treated tadpoles, which suggests a novel mechanism is involved

Awash in E-Journal Data: What It Is, Where It Is, and What Can Be Done with It (Is It “Too Much” or “Not Enough?”)

Libraries have been collecting e-journal data for some time. With the variety of data sources available, it is often difficult to determine their utility. This session explores the Penn State experience with navigating a number of data sources and their limitations and usefulness to advance library management objectives, as well as other institutional objectives. We will look at the COUNTER-compliant JR1 and JR1a data sets and standards (how they are derived and what issues there are with the data), as well as publishing and citation data (e.g., Web of Science) that shows faculty activity in publishing and their participation in editorial activities. What can we learn from these data? The objective of the session is to stimulate ideas and discussion for applications of the data we collect, ways of manipulating data sets, and including this process in overall analysis workflows

Fake News, Information Herds, Cascades and Economic Knowledge

The paper addresses the issue of “fake news” through a well-known and widely studied experiment that illustrates a possible science behind the phenomenon. Public news is viewed as an aggregation of decentralized pieces of valuable information about complex events. Such systems rely on accumulated investment in trust in news sources. In the case of fake news, news source reliability is not known. The experiment demonstrates how fake news can destroy both the investment in trust and also the benefits that news provides

Method for calculating internal radiation and ventilation with the ADINAT heat-flow code

One objective of the spent fuel test in Climax Stock granite (SFTC) is to correctly model the thermal transport, and the changes in the stress field and accompanying displacements from the application of the thermal loads. We have chosen the ADINA and ADINAT finite element codes to do these calculations. ADINAT is a heat transfer code compatible to the ADINA displacement and stress analysis code. The heat flow problem encountered at SFTC requires a code with conduction, radiation, and ventilation capabilities, which the present version of ADINAT does not have. We have devised a method for calculating internal radiation and ventilation with the ADINAT code. This method effectively reproduces the results from the TRUMP multi-dimensional finite difference code, which correctly models radiative heat transport between drift surfaces, conductive and convective thermal transport to and through air in the drifts, and mass flow of air in the drifts. The temperature histories for each node in the finite element mesh calculated with ADINAT using this method can be used directly in the ADINA thermal-mechanical calculation