The Effects of Accentuated Eccentric Loading on Velocity and Muscle Activation in the Bench Press

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The Effects of Load Carriage on the Ground Reaction Force Loading Rates and Physiological Responses of Soldiers

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The Adaptive Priority Queue with Elimination and Combining

Priority queues are fundamental abstract data structures, often used to manage limited resources in parallel programming. Several proposed parallel priority queue implementations are based on skiplists, harnessing the potential for parallelism of the add() operations. In addition, methods such as Flat Combining have been proposed to reduce contention by batching together multiple operations to be executed by a single thread. While this technique can decrease lock-switching overhead and the number of pointer changes required by the removeMin() operations in the priority queue, it can also create a sequential bottleneck and limit parallelism, especially for non-conflicting add() operations. In this paper, we describe a novel priority queue design, harnessing the scalability of parallel insertions in conjunction with the efficiency of batched removals. Moreover, we present a new elimination algorithm suitable for a priority queue, which further increases concurrency on balanced workloads with similar numbers of add() and removeMin() operations. We implement and evaluate our design using a variety of techniques including locking, atomic operations, hardware transactional memory, as well as employing adaptive heuristics given the workload.Comment: Accepted at DISC'14 - this is the full version with appendices, including more algorithm

The Effects of Various Recovery Techniques on Collegiate Pitching Performance

Snyder, B., Davis, S., Moir, G., Miltenberger, M., East Stroudsburg University, East Stroudsburg, PA Purpose: This study was designed to compare pitching performance (velocity, accuracy), symptomology and functional movement across three recovery techniques (active recovery (pedaling on a stationary bike at 40% Max Age Predicted Heart Rate), passive recovery (sitting down with a jacket around the pitchers arm), and Electro muscular stimulation (sitting down with stim placed on the pitchers arm at the anterior and posterior deltoid) in NCAA Division II collegiate pitchers. Methods: Eight male Division II collegiate baseball athletes (Age: 20.1 ± 1.7 years, Mass: 84.8 ± 10.9 kg, average years of experience: 1.8 ± 1.3, % fat mass: 11.1 ± 4.9, Starter pitcher/relief pitcher: 4/4) volunteered to participate in this study. Each pitcher threw 15 pitchers per inning for a total of 45 pitches per session (3 Fastball, 1 Curveball, 1 Changeup-3 times per inning). After each inning pitched a recovery was performed for 6 minutes to simulate the time in between innings. Prior to warm up, after warm up and after each of the three innings was performed each pitcher was tested for HLa, delta pain scale, internal rotation, external rotation, overall RPE and local RPE. Results: The electro muscular stimulation showed significantly greater amount of strikes thrown at p \u3c 0.05. Overall the velocities (mph) were similar over all three recovery methods and all three innings thrown. Conclusion: Findings from this study suggest the importance of possibly implementing the use of electro muscular stimulation during pitchers recoveries times between innings. Since the velocity was not affected, different recovery methods may be useful to aid the accuracy of different individuals in game situations

Learning Effect of Anchoring Bias in Combination with Action-Perception Coupling in Novice Golf Putting

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Power corrections from decoupling of the charm quark

Decoupling of heavy quarks at low energies can be described by means of an effective theory as shown by S. Weinberg in Ref. [1]. We study the decoupling of the charm quark by lattice simulations. We simulate a model, QCD with two degenerate charm quarks. In this case the leading order term in the effective theory is a pure gauge theory. The higher order terms are proportional to inverse powers of the charm quark mass $M$ starting at $M^{-2}$. Ratios of hadronic scales are equal to their value in the pure gauge theory up to power corrections. We show, by precise measurements of ratios of scales defined from the Wilson flow, that these corrections are very small and that they can be described by a term proportional to $M^{-2}$ down to masses in the region of the charm quark mass

Predictive Validity of Critical Power and Functional Threshold Power for Mountain Bike Race Performance.

Miller, M., Witmer, C., Moir, G., Davis, S., East Stroudsburg University, East Stroudsburg, PA Purpose: This study tested the predictive validity of critical power (CP) and functional threshold power (FTP) for mountain bike cross-country (MTB) race performance. Methods: Five well-trained MTB athletes (mean ± s: age: 31.4 ± 9.3 years; mass: 70.8 ± 9.5kg; VO2max: 63.8 ± 7.0 ml/kg/min) volunteered for this study. Participants’ FTP was measured during a ramped cycle ergometer test to exhaustion and was indicated as the point at which blood lactate reached 4.0 mmol/L. This test also served to measure the gas exchange threshold and VO2peak for CPtesting. CP was tested during a 3-minute all-out test on a cycle ergometer against a fixed resistance. MTB performance measures were gathered from a USA Cycling sanctioned MTB race and reduced to mean lap time over four laps of 7.5 km each. Linear regression was used to assess the prediction of MTB performance using either FTP or CP. Results: This study shows that CP can predict MTB better than FTP (R2=0.943 versus R2=0.784). CP can also predict MTB with less error than FTP (39.413 s versus 76.526 s). Conclusion: Coaches and athletes can use this information to gauge ability and prescribe training for MTB athletes

Charmed Meson Scattering from Lattice QCD

State-of-the-art lattice QCD calculations of scattering amplitudes in coupled-channel Dπ, Dη and DsK¯ scattering, as well elastic DK scattering are discussed. The methodology employed allows a determination of the relevant poles in the scattering matrix, while also providing a measure of the coupling of each channel to a given pole. By investigating S, P and D wave interactions, the nature of states with J P = 0 +, relevant for the D ∗ 0 (2400) and D ∗ s0 (2317), as well as states with J P = 1 −,2 + are discussed.GM acknowledges support from the Herchel Smith Fund at the University of Cambridge

Effects of Precooling on Recreationally Active Individuals During Loaded Carriage Foot Marches in Heated Conditions

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