Analyzing the test process using structural coverage

A large, commercially developed FORTRAN program was modified to produce structural coverage metrics. The modified program was executed on a set of functionally generated acceptance tests and a large sample of operational usage cases. The resulting structural coverage metrics are combined with fault and error data to evaluate structural coverage. It was shown that in the software environment the functionally generated tests seem to be a good approximation of operational use. The relative proportions of the exercised statement subclasses change as the structural coverage of the program increases. A method was also proposed for evaluating if two sets of input data exercise a program in a similar manner. Evidence was provided that implies that in this environment, faults revealed in a procedure are independent of the number of times the procedure is executed and that it may be reasonable to use procedure coverage in software models that use statement coverage. Finally, the evidence suggests that it may be possible to use structural coverage to aid in the management of the acceptance test processed

In Praise of Getting Lost: Sven Hedin and the Lowline

This article represents Ramsey\u27s design for the Lowline, a vast underground reuse of New York’s abandoned trolly terminal on the Lower East Side. It is partly inspired by notes from Sven Hedin’s celebrated expedition into Central Asia in the early 1900s

Vast Migrating Armies of the Millipede, Pseudo-Polydesmus Serratus (Say) in the Dayton Region

Author Institution: Department of Biology, University of Dayton, Dayton, Ohi

The Effects of Size of Sampling Area and Dilution on Leucocyte Counts in a Hemocytometer

Author Institution: The University of Dayton, Dayton, OhioWith nearly 5000 areas examined, the comparison of a Poisson distribution to the distribution of leucocytes in a hemocytometer chamber at both 1:100 and 1:25 dilutions indicated a poor fit (P= <0.0001), a non-random distribution. In a series of leucocyte determinations from a young, male university student comparing 28 counts from 18 mm2 (both chambers) with 28 from 9 mm2, and 28 from 4 mm2 (the usual standard), the mean from the 18 mm2 counts was not significantly different from that of the 9 mm2 counts. However, both the means of the 18 mm2 counts and the 9 mm2 counts were significantly different from that of the 4 mm2 counts (P = 0.02 and 0.035 respectively). Forty-two counts at 1:100 dilution had a mean not significantly different from that of 42 counts at 1:20 dilution (P = 0.06). It appears that the counts from the 18 mm2 area at 1:100 dilution are the most reliable and are therefore recommended for critical research determinations. Fourteen such counts had the most restricted range and the lowest standard deviation of any of the six combinations

Bilateral deficit: A comparison between upper-body and lower-body maximal strength

Purpose: The study’s primary purpose was to determine if maximal unilateral strength is greater than maximal bilateral strength for the leg press and vertical dumbbell press exercises. The secondary purpose was to determine if blood glucose levels differ between the unilateral and bilateral conditions for the leg press exercise. Methods: Thirty college-aged volunteers reported on two separate occasions, 72 hours apart, for maximal strength testing. Blood glucose was obtained before and after strength testing for the leg press exercise. A paired samples t-test was conducted to determine significance (p \u3c .05). Results: Participants were significantly stronger for the bilateral leg press; however, no significant differences were observed for the vertical dumbbell press exercise. No significant differences were observed in plasma blood glucose for the leg press exercise. Conclusion: Participants did not display a bilateral lateral deficit, which may have been a result of their resistance training prior to the study

Lawyering in the Wake: Theorizing the Practice of Law in the Midst of Anti-Black Catastrophe

This article proposes a theory of legal practice grounded not in an uncritical adherence to the law, nor to abstract notions of liberalism or progressivism, but in the lived realities of Black people. Employing various theoretical paradigms developed by Christina Sharpe in her book In the Wake: On Blackness and Being, this article suggests that lawyers should think and act in coordination with and on behalf of those who suffer under the various regimes of anti-Blackness (what Sharpe and others refer to as the wake of chattel slavery), which are, in part, constituted by the very legal systems lawyers navigate. If we understand Black life and legal practice carried out in its name in this way, the law might be seen less as some higher principle to which lawyers should bow, and more as a material tool of oppression lawyers ought to repurpose, manipulate, and/or weaken in order to protect its victims

Letter to Philander Chase

Ramsey, though a stranger to Chase, is very impressed by the mission of Chase and the College and is donating books to the library.https://digital.kenyon.edu/chase_letters/1855/thumbnail.jp

The Non-Linear Energy Sink Applied to Vertical Floor Vibration Mitigation

This thesis investigates the non-linear energy sink (NES) and its application to floor vibration mitigation. The NES is a passive type mass damper comprised of an essentially non-linear stiffness component. This non-linear stiffness property allows the NES to interact with a wide variety of frequency regimes that can vary both widely and randomly throughout flooring systems. Flooring systems are regularly subjected to these changing inputs from general use and occupancy, as well as, human and mechanical induced loading. It is known that the NES has been successfully implemented for vibration mitigation in the horizontal direction. However, to achieve this non-linearity in the vertical direction, the offset produced by gravitational force needs to be considered. This thesis proposes an NES device that compensates for this gravitational force and investigates its interaction and application to vertical floor vibration mitigation. The device’s geometric mechanism and its derivation are presented, as well as, the limitations and extent of its physical properties. In addition, a simplified floor model is derived using structural dynamic analysis techniques and is studied under three cases which include: a control, a traditional tuned mass damper, and the new proposed device. The results support the assumption that the device’s non-linear restoring force can be approximately modeled as a cubic function. This approximation allows for simplification in both the model’s analysis and optimization stages. Also, the results show that the device can be affective at mitigating vertical vibration modes. This supports the theory that a frequency independent non-linear mechanism can be produced for the vertical vibration mitigation needed in flooring systems