Comparative assessment of prognosis of the stop stimulus and trapezoidal rotation programs

For prognosis of the diagnostic possibilities of the stop stimulus and trapezoidal rotation programs with respect to the nystagmus response, 24 healthy young persons with normal auditory and vestibular analysers were studied experimentally. The trapezoidal program more accurately reflects the function and tone balance of the vestibular system than the stop stimulus program and causes the subject no unpleasant sensations during the study. Some optimum couples, acceleration and armchair rotation rate, necessary for effective deviation of the cupuloendolymphatic system were determined. The maximum angular velocity of the slow nystagmus component was more informative than nystagmus duration. The trapezoidal program is recommended for otoneurological practice and the maximum angular velocity of the slow nystagmus component as the basic index

Construction and analysis of surface phase diagrams to describe segregation and dissolution behavior of Al and Ca in Mg alloys

Segregation and dissolution behavior of Mg alloyed with Ca and Al are studied by performing density functional theory calculations considering an extensive set of surface structures and compositions. Combining a McLean-like approach to describe disordered surface structures with ab initio surface science approaches for ordered surface structures we construct surface phase diagrams for these alloys. We utilize these diagrams to study segregation phenomena and chemical trends for surfaces in contact with a dry environment or with an aqueous electrolyte. We show that the presence of water dramatically impacts the stability and chemical composition of the considered metallic surfaces. We furthermore find that the two alloying elements behave qualitatively different: whereas Ca strongly segregates to the surface and becomes dissolved upon exposure of the surface to water, Al shows an anti-segregation behavior, i.e., it remains in Mg bulk. These findings provide an explanation for the experimentally observed increase/decrease in corrosion rates when alloying Mg with Al/Ca

Do Individuals in Developing Countries Care about Personal Health Information Privacy? An Empirical Investigation

As developing countries migrate to electronic healthcare (e-health) systems, emerging case studies suggest concerns are being raised about the privacy and security of personal health information (PHI) (e.g., Bedeley & Palvia, 2014; Willyard, 2010). However, there is lack of consideration of PHI privacy in the development of e-health systems in these countries as developers and policy makers assume that individuals are in greater need of healthcare and may not care about issues such as privacy (Policy Engagement Network [PEN], 2010). To better understand these assumptions and concerns individuals may have about the digitization of their PHI, this study examined individuals’ privacy concerns regarding the use of electronic health record (EHR) systems by hospitals for storing and managing PHI. A survey was conducted on a sample of 276 individuals in Ghana, a Sub-Saharan African country. We analysed the dataset using t-test and analysis of variance (ANOVA). Contradicting the assumption underlying e-health systems development, the results demonstrated that whilst individuals are less concerned about the collection of their PHI by hospitals, they are highly concerned about unauthorised secondary use, errors, and unauthorize access regarding their PHI stored in EHR systems. These concerns are especially greater for individuals with high computer experience and those who are extremely concerned about their health. Furthermore, compared with women and older individuals (35 years or older), men and younger individuals (aged 18-24) are more concerned about the collection of their PHI by hospitals. Implications for research and practice are discussed

A Simple Questionnaire Can Change Everything: Are Strategy Choices in Coordination Games Stable?

This paper presents results from an experiment designed to study the effect of self reporting risk preferences on strategy choices made in a subsequently played 2× 2 coordination game.The main finding is that the act of answering a questionnaire about one\u27s own risk preferences significantly alters strategic behavior. Within a best response correspondence framework, this result can be explained by a change in either risk preferences or beliefs. We find that self reporting risk preferences induces an increase in subjects\u27 risk aversion while keeping their beliefs unchanged. Our findings raise some questions about the stability of strategy choices in coordination games

How Sensitive is Strategy Selection in Coordination Games?

This paper presents the results of an experiment designed to study the effect produced on strategy choices when a subject reports risk preferences on a risk scale before engaging in a 2x2 coordination game. The main finding is that the act of stating one\u27s own risk preferences significantly alters strategic behavior. In particular, subjects tend to choose the risk dominant strategy more often when they have previously stated their attitudes to risk. Within a best-response correspondence framework, this result can be explained by a change in either risk preferences or beliefs. We find that self-reporting risk preferences does not induce a change in subjects\u27 beliefs. We argue that the behavioral arguments of strategy selection, such as focal points, framing and uncertain preferences can explain our results

A Simple Questionnaire Can Change Everything - Are Strategy Choices in Coordination Games Stable?

This paper presents results from an experiment designed to study the effect of self reporting risk preferences on strategy choices made in a subsequently played 2× 2 coordination game.The main finding is that the act of answering a questionnaire about one's own risk preferences significantly alters strategic behavior. Within a best response correspondence framework, this result can be explained by a change in either risk preferences or beliefs. We find that self reporting risk preferences induces an increase in subjects' risk aversion while keeping their beliefs unchanged. Our findings raise some questions about the stability of strategy choices in coordination games.coordination game, questionnaire, risk preferences, beliefs, best response correspondence