Consider the Source: Receiver-Assigned Attributions of Credibility to Influential Bloggers

The purpose of this study is to examine credibility as it pertains to blogging. While studies have traditionally considered credibility in the context of the material being created, this study examines source credibility in the context of the personality creating the material. Therefore, this study functions primarily as an exploratory study and seeks to present an understanding of source credibility from the perspective of the individuals participating in blogging communities cultivated by influential bloggers. An interview questionnaire was specially developed for this study. Ten participants were selected for this study. Eight of them are females, two of the participants are males. All but one of the participants are Caucasians. The study’s results show that support for attributions of credibility differing based on receiver gender and ethnicity does not exist. However, there was a difference in the types of credible behavior attributed to the bloggers in this study. Responses concerning the male Hispanic blogger indicate credibly behavior oriented toward providing depth of information, whereas responses concerning the White female blogger indicated an inclination toward a community-centric blog focused on providing a broad range of resources. Due to the limited sample size of this study, the ability to make general statements and infer statistical significance is limited, thus relegating this study to being only useful for exploratory purposes. This study’s results, data interpretation, implications, and possibilities for future research are discussed at length

The Collapse of the Mexican Peso: What Have We Learned?

Financial policy, economic reform

The Mexican Peso Crisis: Sudden Death or Death Foretold?

We argue that allowing for the possibility of a self-fulfilling panic helps in understanding several features of the recent Mexican crisis. Self-fulfilling expectations became decisive in generating a panic only after the government ran down gross reserves and ran up short-term dollar debt. We present a simple model to explain how and why multiple equilibria can occur for some levels of reserves or debt, but not for others. Lastly, we argue that the imperfect credibility of Mexican exchange rate policy made it advisable to follow more contractionary fiscal and monetary policies in 1994. Our model formalizes the reasons why this is so.

Financial Crises in Emerging Markets: The Lessons from 1995

In this paper we examine closely the financial events following the Mexican peso devaluation to uncover new lessons about the nature of financial crises. We explore the question of why, during 1995, some emerging markets were hit by financial crises while others were not. To this end, we ask whether there are some fundamentals that help explain the variation in financial crises across countries or whether the variation just reflects contagion. We present a simple model identifying three factors that determine whether a country is more vulnerable to suffer a financial crisis: a high real exchange rate appreciation, a recent lending boom, and low reserves. We find that for a set of 20 emerging markets, differences in these fundamentals go far in explaining why during 1995 some emerging markets were hit by financial crises while others were not. We also find that alternative hypotheses that have been put forth to explain such crises often do not seem to be supported by the data, such as high current account deficits, excessive capital inflows and loose fiscal policies.

Achieving the Millennium Development Goals: Does Mental Health Play a Role?

Miranda and Patel argue that mental disorders are among the most important causes of disability and premature mortality in developing countries

Correlations between 21 cm Radiation and the CMB from Active Sources

Neutral hydrogen is ubiquitous, absorbing and emitting 21 cm radiation throughout much of the Universe's history. Active sources of perturbations, such as cosmic strings, would generate simultaneous perturbations in the distribution of neutral hydrogen and in the Cosmic Microwave Background (CMB) radiation from recombination. Moving strings would create wakes leading to 21 cm brightness fluctuations, while also perturbing CMB light via the Gott-Kaiser-Stebbins effect. This would lead to spatial correlations between the 21 cm and CMB anisotropies. Passive sources, like inflationary perturbations, predict no cross correlations prior to the onset of reionization. Thus, observation of any cross correlation between CMB and 21 cm radiation from dark ages would constitute evidence for new physics. We calculate the cosmic string induced correlations between CMB and 21 cm and evaluate their observability.Comment: 8 pages, 5 figure

Banner News

https://openspace.dmacc.edu/banner_news/1294/thumbnail.jp

Studies on Understanding Individual Willingness to Disclose Genetic Information to Public and Private Stakeholders

While technologies for genetic sequencing have increased the promise of personalized medicine, they simultaneously pose threats to personal privacy. The public’s desire to protect itself from unauthorized access to information may limit the uses of this valuable resource. To date, there is limited understanding about the public’s attitudes toward the regulation and sharing of such information. We sought to understand the drivers of individuals’ decisions to disclose genetic information to a third party in a setting where disclosure potentially creates both private and social benefits, but also carries the risk of potential misuse of private information. We conducted two separate but related studies. First, we administered surveys to college students and parents, to determine individual attitudes toward and inter-generational influences on the disclosure decision. Second, we conducted a game-theory based experiment that assessed how participants’ decisions to disclose genetic information are influenced by societal and health factors. Key survey findings indicate that concerns about genetic information privacy negatively impact the likelihood of disclosure while the perceived benefits of disclosure and trust in the institution receiving the information have a positive influence. The experiment results also show that the risk of discrimination negatively affects the likelihood of disclosure, while the positive impact that disclosure has on the probability of finding a cure and the presence of a monetary incentive to disclose, increase the likelihood. We also study the determinants of individuals’ decision to be informed of findings about their health, and how information about health status is used for financial decisions

A Bayesian Network Driven Approach to Model the Transcriptional Response to Nitric Oxide in Saccharomyces cerevisiae

The transcriptional response to exogenously supplied nitric oxide in Saccharomyces cerevisiae was modeled using an integrated framework of Bayesian network learning and experimental feedback. A Bayesian network learning algorithm was used to generate network models of transcriptional output, followed by model verification and revision through experimentation. Using this framework, we generated a network model of the yeast transcriptional response to nitric oxide and a panel of other environmental signals. We discovered two environmental triggers, the diauxic shift and glucose repression, that affected the observed transcriptional profile. The computational method predicted the transcriptional control of yeast flavohemoglobin YHB1 by glucose repression, which was subsequently experimentally verified. A freely available software application, ExpressionNet, was developed to derive Bayesian network models from a combination of gene expression profile clusters, genetic information and experimental conditions