Combining the Extended Risk Analysis Model and the Attack Response Model to Introduce Risk Analysis

This paper uses the Extended Risk Analysis Model to introduce risk analysis in a classroom setting. The four responses to an attack, avoidance, transference, mitigation, and acceptance are overlaid on the Extended Risk Analysis Model to aid in the visualization of their relationship. It then expands and updates the cyber insurance portion of the Extended Risk Analysis Model

Internet Browser Configuration for Presentations

The increased use of the Internet and the World Wide Web in presentations requires that techniques must be developed to ensure service standards of performance, consistency, flexibility, availability, and reliability of the presentation. Since operation of the network and the visited web site is often outside of the control of the presenter, other approaches must be developed. This paper looks at the configuration and use of a web browser to address these issues

An Empirical Description of the Internet Sector of the US Economy: Evidence from New Company Filings

This study is an empirical analysis of the Internet business models used by United States firms that filed for initial public sale of securities from 1996 thru 2001. Analysis included identification of the business modes deployed for generating revenue from the Internet, extension of Eisenmann’s [2002] classifications of Internet business models and the matching of firms to the extended classifications. The analysis revealed that Internet companies comprise a significant portion of the emerging U. S. economy. Further, a significant percentage of traditional companies derive material revenue from the Internet. The results also suggested that there is a significant differentiation of Internet business models. Finally, the results expand the definition of an Internet firm to include firms that are not limited to direct service-related functions described by Eisenmann. In fact, numerous firms derive their existence by providing services, hardware or software that supports the Internet sales and services of other firms

An Active Learning Exercise to Help Students Discover how to Model a Third Decision

In this paper, we describe an active learning exercise for a fictitious business producing sea turtle bamboo beach towels. The students are asked to assume the role of a junior analyst at a company as they are led through a series of business memos, directed questions, nutshell summaries, and class discussions. In this role, students have the opportunity to discover how to review business communications to identify a new third decision, what additional data will be needed, and what changes will be required to reformulate the existing product mix model for sea turtle bamboo beach towels

Relationship of lower limb flexibility, strength, and anthropometric measures to skating speed in varsity hockey players

The purpose of the study was to examine the relationship of flexibility, strength and anthropometric measurements of the lower limbs to the skating speed of hockey players. Seventeen university varsity hockey players were assessed for: leg and grip strengths using cable-tension methods; lower limb flexibility using Leighton’s flexometer and technique; anthropometry of the legs; and skating speed under standing and flying start conditions with and without a stick over two distances, 40 feet and 25 metres. Time was recorded using photoelectric cells and a Universal Counter Timer Model 604A. The strength, flexibility, and anthropometric measures were the independent variables and the skating speeds were the dependent variables. Using a significance level of .05 the data were analyzed using the Pearson Product-Moment Correlation Coefficient and Stepwise Multiple Regression statistical methods. The resulting r*s indicated that 1) flexibility was specific to each Joint measured, 2) there was a general strength factor and a general skating body type, 3) two of the skating speed tests encompassed many factors of the other six, 4) flexibility was related to a little degree to strength and anthropometry, 5) strength and anthropometry were related, and 6) flexibility and anthropometry were not related to skating speed. The regression analyses accounted for all of the variance in each dependent variable but the variables entered were different in order and in contributory weight in each analysis. Skating speed was indicated as being specific to the distance and conditions under which it was performed

Cybersecurity Continuity Risks: Lessons Learned from the COVID-19 Pandemic

The scope and breadth of the COVID-19 pandemic were unprecedented. This is especially true for business continuity and the related area of cybersecurity. Historically, business continuity and cybersecurity are viewed and researched as separate fields. This paper synthesizes the two disciplines as one, thus pointing out the need to address both topics simultaneously. This study identifies blind spots experienced by businesses as they navigated through the difficult time of the pandemic by using data collected during the height of the COVID-19 pandemic. One major shortcoming was that most continuity and cybersecurity plans focused on single-axis threats. The COVID-19 pandemic resulted in multi-axes threats, pointing out the need for new business strategies moving forward. We performed multiple regression analysis and constructed a correlation matrix to capture significant relationships between percentage loss of revenue and levels of concern for different business activities moving forward. We assessed the most pervasive issues Florida small businesses faced in October 2020 and broke these down by the number of citations, the total number of impacts cited, and industry affectedness. Key security risks are identified and specific mitigation recommendations are given

The Impact of Non-Equipartition on Cosmological Parameter Estimation from Sunyaev-Zel'dovich Surveys

The collisionless accretion shock at the outer boundary of a galaxy cluster should primarily heat the ions instead of electrons since they carry most of the kinetic energy of the infalling gas. Near the accretion shock, the density of the intracluster medium is very low and the Coulomb collisional timescale is longer than the accretion timescale. Electrons and ions may not achieve equipartition in these regions. Numerical simulations have shown that the Sunyaev-Zel'dovich observables (e.g., the integrated Comptonization parameter Y) for relaxed clusters can be biased by a few percent. The Y-mass relation can be biased if non-equipartition effects are not properly taken into account. Using a set of hydrodynamical simulations, we have calculated three potential systematic biases in the Y-mass relations introduced by non-equipartition effects during the cross-calibration or self-calibration when using the galaxy cluster abundance technique to constraint cosmological parameters. We then use a semi-analytic technique to estimate the non-equipartition effects on the distribution functions of Y (Y functions) determined from the extended Press-Schechter theory. Depending on the calibration method, we find that non-equipartition effects can induce systematic biases on the Y functions, and the values of the cosmological parameters Omega_8, sigma_8, and the dark energy equation of state parameter w can be biased by a few percent. In particular, non-equipartition effects can introduce an apparent evolution in w of a few percent in all of the systematic cases we considered. Techniques are suggested to take into account the non-equipartition effect empirically when using the cluster abundance technique to study precision cosmology. We conclude that systematic uncertainties in the Y-mass relation of even a few percent can introduce a comparable level of biases in cosmological parameter measurements.Comment: 10 pages, 3 figures, accepted for publication in the Astrophysical Journal, abstract abridged slightly. Typos corrected in version

ASSESSMENT OF ESSAYS IN A MANAGEMENT SCIENCE COURSE

The ability to communicate a problem statement and an appropriate quantitative business method are important professional skills. This paper presents an analysis of student skill in writing a final exam essay that describes how a specific organization can improve decision making using mathematical programming, the business modeling approach that was the focus of the course. Although performance on assessments of professional writing and the description of a mathematical programming model averaged less than 80% across all essays written, improved writing when students received formative feedback in 2013 suggests that teaching students to identify and articulate the development and use of business tools through written communication is an important area for future business research

Zebrafish behavioural profiling identifies GABA and serotonin receptor ligands related to sedation and paradoxical excitation.

Anesthetics are generally associated with sedation, but some anesthetics can also increase brain and motor activity-a phenomenon known as paradoxical excitation. Previous studies have identified GABAA receptors as the primary targets of most anesthetic drugs, but how these compounds produce paradoxical excitation is poorly understood. To identify and understand such compounds, we applied a behavior-based drug profiling approach. Here, we show that a subset of central nervous system depressants cause paradoxical excitation in zebrafish. Using this behavior as a readout, we screened thousands of compounds and identified dozens of hits that caused paradoxical excitation. Many hit compounds modulated human GABAA receptors, while others appeared to modulate different neuronal targets, including the human serotonin-6 receptor. Ligands at these receptors generally decreased neuronal activity, but paradoxically increased activity in the caudal hindbrain. Together, these studies identify ligands, targets, and neurons affecting sedation and paradoxical excitation in vivo in zebrafish