Miracle-dz/UniFAR-FTUs huggingface dataset:
Exploring the paradoxes and tensions encountered by business faculty teaching teamwork in a changing academic environment

ABSTRACT The contemporary university is now characterised as a complex working environment wherein faculty must negotiate increasing demands for accountability, performativity, and productivity. A multiplicity of expectations adds to this complexity. Specifically, expectations set by employers in developing ‘work-ready’ graduates have compelled faculty to negotiate interdependent contradictions that focus on developing employability skills alongside technical skills. This qualitative study reports on the lived experiences of 30 business school teaching faculty, negotiating tensions as they relate to the teaching of one type of employability skill: teamwork. Paradox theory is appropriated to better understand how faculty perceive their professional environment and practices related to teamwork pedagogy. The findings reveal that faculty navigate the performing/learning, performing/organising and performing/belonging paradoxes of teamwork pedagogy by passively suppressing tensions or through proactive acceptance strategies.
Sensitivity to interaural timing differences within the envelopes of acoustic waveforms

Interaural-timing-differences (ITDs) are a cue for sound-source localisation and can be conveyed in the temporal-fine-structure (TFS) of low-frequency tones or in the envelope of high-frequency, amplitude-modulated sounds such as sinusoidally amplitude-modulated (SAM) and transposed-tones. Sensitivity to these cues has been measured in human psychophysical experiments and has revealed that the tranposed-tone elicits just-noticeable-differences (JNDs) in ITDs that are equivalent to those of low-frequency pure-tones when the modulation frequency is below 512-Hz. At modulation frequencies above 512-Hz performance rapidly declines for the transposed-tone while sensitivity to ITDs in pure-tones is robust until around 1200-Hz. Furthermore, transposed-tones elicit JNDs smaller than SAM tones. In the present study, ITD JNDs are assessed psychophysically for pure-tones and transposed-tones using off-midline reference locations. The results demonstrate that frequency, whether the ITD is conveyed in the TFS or the envelope, and location, all have a significant effect on human ITD JNDs and suggest that a difference exists in how ITDs are coded neuronally when conveyed by either high- or low-frequency sounds. ITD-sensitive neurons located within several brainstem nuclei display a high degree of phase-locking to both the TFS of low-frequency pure-tones and the envelopes of SAM and transposed-tones. Echoing the psychophysical findings, phase-locking to the waveform envelope at low modulation frequencies is equivalent to that of low-frequency pure-tones, while declining at high rates of modulation to a lesser degree for tranposed-tones than SAM tones. In order to assess factors critical to the localisation of high-frequency sounds a series of electrophysiology experiments were conducted. Recordings were made from single neurons within the inferior colliculus of the guinea pig in response to ITDs conveyed by 18 unique envelope shapes to evaluate how the envelope segments; Pause, Attack, Sustain and Decay each effect ITD JNDs. Amplitude-modulations with envelope shapes comprising relatively long Pause but short Attack durations have been found to elicit the greatest ITD discrimination of high-frequency sounds.
Nonstationary Root Causes of Cobb's Paradox

Abstract : Cobb's Paradox states, "We know why [programs] fail; we know how to prevent their failure-so why do they still fail? " One possibility is that we do not really know why programs fail and there is no paradox. Another possibility is that some of the problems that lead to program failure may not be susceptible to practical solution, so that continued failure is not paradoxical. This article defines what we mean by nonstationary root causes of program failures, and identifies 10 such causes. Requirements volatility, funding stability, process immaturity, and lack of discipline are often cited among the reasons. The article ends with recommended approaches to mitigate the effects of influences from the environment that change over time-nonstationary effects.
Simulation of Radiowave Propagation in a Dense Urban Environment

Abstract : One objective of this thesis was to investigate the effect of details, such as the windows of high-rise buildings, on the radio wave propagation in the dense urban environment through modeling and simulations. If adding windows does not significantly change the signal distribution on average, it may not be necessary to build such a detailed model. Simulations are performed using several levels of detail and the results compared to estimate the impact of the fine details on the signal level. A second issue is base station antenna coverage. The antenna gain, half power beamwidth (HPBW), location, and pointing angle should be chosen to give the maximum coverage over a specified sector. Simulations can be used to select the optimums set of base station properties. Specifically this research looks at the coverage from the two sectored antennas versus a single one over a quadrant.
Teaching Approach of Emergency Traumatic Chest Injuries: A Review

TPT may be said to occur when a one-way valve communicates with the pleural space. Air is forced into the plural space with no way to escape, eventually collapsing the affected lung. Ultimately, pushesthe mediastinum to the opposite side, decreasing venous return and comprising the opposite lung (Figure 41). Tension pneumothorax is considered a lifethreatening emergency condition and requires rapid recognition and treatment. Abstract
Effects of weight change and physical activity on knee pain and health-related quality of life in East Asian women aged 50 years and older with knee osteoarthritis: a population-based study

Background This study aimed to investigate the effects of weight change and physical activity on the level of knee pain and health-related quality of life in East Asian women with knee osteoarthritis using population-based data. Methods A total of 564 women (mean age, 68.2 years, standard deviation, 8.9 years) aged 50 years or older with knee osteoarthritis (Kellgren-Lawrence grade ≥2) were included in the data analyses from the fifth Korea National Health and Nutrition Examination Survey. Data regarding the radiographic grade, weight change during the past year, physical activity, level of knee pain, and health-related quality of life (EuroQOL five-dimension [EQ-5D] index) were collected. Multiple regression analysis was performed to identify factors significantly affecting the level of knee pain and health-related quality of life in subgroups according to the body mass index (BMI) range (≤22.5, between 22.6 and 27.5, and >27.5 kg/m2). Result In women with 22.5 kg/m227.5 kg/m2, weekly hours of moderate-intensity activity showed significant negative correlation with EQ-5D. Conclusions The effects of weight change and physical activity on knee pain and health-related quality of life could be different according to BMI ranges. Well-designed interventions to improve both knee pain and health-related quality of life need to be investigated in future studies that would assess physical activity, diet, and weight changes.
Working Capital Strategy and Operation Risk in the Food and Beverage Companies Listed in the Indonesia Stock Exchange

The purpose of this study is to investigate the effect of working capital investment and working capital financing on the operational risk of nine listed firms in the agricultural sector of the Indonesian Stock Exchange. The time period used is 12 years from 2008 - 2019. The operational risk variable is the deviation absolute value of ROA, ROE, Sales and Cost of Goods Sold. The independent variable is the working capital investment strategy (WCIS) and Working Capital Financing Policy (WCFS). For control variables using debt ratio, size, age and current ratio variables. The analysis technique used is Ordinary Least Square (OLS) regression. The results obtained by shows that (1) WCIP have a negative and significant impact on the risk of ROA and ROE, (2) WCIP has a positive and significant effect on the risk of sales and CGS, (3) WCFP has a positive and significant impact on the risk of ROA and ROE, however, (4) WCFP has a negative and significant effect on the risk of sales and CGS. Debt ratio only has a positive effect on ROE risk. Company asset size has a positive and significant effect on Sales and CGS. Company age has a positive and significant effect on ROE risk. The current ratio variable has a positive effect on ROE risk and has a negative effect on the risk of sales and CGS.
Transmission System Tap Changer Settings to Maximize Loadability Margin

In this paper we present a methodology to in- crease the loadability margin of a power system by optimiz- ing the taps of EHV/HV transformers. The structure of the loadability surface consisting of multiple branches is inves- tigated and an algorithm to optimize taps at a corner point of the loadability surface is developed. Finally the method is applied to a real power system and a considerable increase in loadability margin is achieved
Detection Optimization of the Progressive Multi-Channel Correlation Algorithm Used in Infrasound Nuclear Treaty Monitoring

Abstract : This thesis develops methods to determine optimum detection thresholds for the Progressive Multi-Channel Correlation (PMCC) algorithm used by the International Data Centre (IDC) to perform infrasound station-level nuclear-event detection. Receiver Operating Characteristic (ROC) curve analysis is used with real ground truth data to determine the trade-off between the probability of detection (P sub D) and the false alarm rate (FAR) at various consistency detection thresholds. Further, statistical detection theory via maximum a posteriori and Bayes cost approaches is used to determine station-level optimum family size thresholds of grouped detection pixels with similar signal attributes (i.e. trace velocity, azimuth, time of arrival, and frequency content) before the detection should be considered for network-level processing. Optimum family sizes are determined based upon the consistency threshold and filter configuration used to filter sensor data prior to running the detection algorithm. Finally, this research generates synthetic signals for particular array configurations, adjusts the signal-to-noise ratio (SNR) to determine the SNR failure levels for the PMCC detection algorithm, and compares this performance to the performance of fielded infrasound stations with similar configurations.
Design and Implementation of VoIP Equipment including Telephone Function for Home Gateway Connection

Internet is absolutely contributed to information technology revolution nowadays. Internet services such as voice and data, etc. are provided home or small office via home gateway. The development of communication equipment via home gateway is implemented rapidly, and its product various. This paper presents the design and implementation of the VoIP equipment including the telephone function based on the embedded environment and being connected to the home gateway and the PC because of taking 2-ethernet LAN ports. As developing environment, the STLC1502 developed at ST Microelectronics as single chip solution, VxWorks as RTOS, and C language as coding mechanism are used. The verification of the developed systems for the voice test is carried out for the gatekeeper via Internet. The performance parameter is considered as the call processing capacity measuring the time of the call setup and clearing, and the data processing capacity for the file transfer. As a call setup and clearing is about 95ms, the call processing capacity is about 10 calls per second. The data processing capacity is 5.7Mbps in case of file transfer of server and client environment. Therefore the performance result is satisfied in the aspect of the call processing time and the data transfer time in Internet.
Damage tolerance and multi-scale simulation of novel 3D composites

Composite materials are experiencing a huge expansion in use on high-value components for their high strength and low weight. To increase damage tolerance, complex architectures such as 3D weaving are being used. Existing analysis techniques are focussed on laminated composites, and are unable to capture the complex behaviour and realize the full potential of 3D weaved material. The aim of this study was to develop a technique by which a 3D weaved component could be simulated to determine damage intiation and growth, and understand the response of the structure. Multi-scale techniques have been employed to achieve this in a practical, accurate and efficient manner. A model has been produced by extending established ‘layerwise’ finite element methods used for laminated (1D/2D) composites in order to generate globally accurate displacements and selective locally accurate stresses, and combining with models to simulate delamination and transverse tow pullout. Additionally, asymptotic expansion homogenization models are used to resolve stresses to the tow scale, enabling an accurate assessment of damage accumulation at the micro-scale and the resulting effect at the component scale. The model has been implemented in MATLAB, and the constituent parts of the model have been validated against analytical, test and published data. It has been proven to produce good results at a lower computational cost or greater resolution than other equivalent models. The capability of the unified model has been demonstrated by simulating the failure process of a double cantilever beam constructed from a 3D weaved composite.
Landing kinematics of horizontal bar dismounts

Dismounts from the horizontal bar require the dissipation of substantial velocities and therefore large forces. The maximum heights from dismounts are seen to be in the order of 4m or more. Kerwin et al. (1990) reported that maximum heights for double somersault dismounts -ranged from 3.45 to 3.73m,and for triple somersault dismounts, 3.89 to 4.08m. The purpose of this study was to investigate the biomechanical characteristics of succesful horizontal bar landings. Performances of six out of eight male finalists from the individual apparatus finals on horizontal bar at the World Gymnastic Championships1994, Brisbane, were chosen. The dismounts were recorded at 50 Hz during competitions, with the video cameras positioned on the catwalks above the floor of the competition venue. The analysis included mean and standard deviations of selected kinematic and temporal parameters in order to identify successful competition landing techniques. The recordings of the individual dismounts and subsequent landing performances were reviewed to qualitatively investigate the completion of the last salto of the double and triple back somersaults before the landing. The double back layout dismounts showed aback arched shape for most of the flight phase before re-piking in preparation for the landing. Analysis of the data revealed a mean maximum CM height during dismount, before the landing, of 3.06 m and an impact velocity at landing of-6.48 d s . Brueggemann et al. (1994), reported mean release velocities of 4.79 st 0.33 m/s for double tucked back somersault, 4.04 f 0.1 m/s for double layout back somersault, and 5.08 f 0.31 d s for triple tucked back somersault dismounts, which compares to the impact velocity of this study. The knee angle at landing was 156" and minimum knee angle during landing was 87". This available range of motion of 69" knee flexion with a landing phase duration of 0.14sec7 was a significant factor for the preparation phase of successful landings. The mean CM to ground contact and the horizontal was 87". Trunk to horizontal at landing was 134", and thigh to horizontal at landing was 107". Selected parameters of the results presented in this study may be used to form a representative biomechanical profile for horizontal bar landings.
Mathematical Model of Cold CapPreliminary One-Dimensional Model Development

The ultimate goal of batch-melting studies, laboratory-scale, large-scale, or mathematical modeling is to increase the rate of glass processing in an energy-efficient manner. Mathematical models are not merely an intermediate step between laboratory-scale and large-scale studies, but are also an important tool for assessing the responses of melters to vast combinations of process parameters. In the simplest melting situation considered in this study, a cold cap of uniform thickness rests on a pool of molten glass from which it receives a steady uniform heat flux. Thus, as the feed-to-glass conversion proceeds, the temperature, velocity, and extent of feed reactions are functions of the position along the vertical coordinate, and these functions do not vary with time. This model is used for the sensitivity analyses on the effects of key parameters on the cold-cap behavior.
Volume and biomass for curlleaf cercocarpus in Nevada. Research paper

Volume and biomass equations were developed for curlleaf cercocarpus (Cercocarpus ledifolius Nutt.) in the Egan and Schell Mountains near Ely, NV. The equations predict cubic foot volume of wood and bark for variable minimum branch diameters. Wood density factors are given to convert volume predictions to pounds of fiber biomass. The reliability of the equations was assessed using the jackknife technique to construct confidence intervals.
Antipsychotic Drugs Attenuate Interleukin-6 Secretion by Microglia Via Dopamine Inhibition

Background: Antipsychotic drugs are commonly used for various neuropsychiatric disorders, such as psychotic disorders, mood disorders, and neuropsychiatric symptoms in dementia. Their mechanism of action is thought to be by modulation of neurotransmitter activity in the brain, mainly dopamine. It has been suggested that antipsychotic drugs may also exert anti-inflammatory properties. This study aimed to examine whether the modulating effect of antipsychotic drugs on neurotransmitters attenuates the inflammatory response of microglia cells. Methods: Levels of interleukin 6 (IL-6) were measured following activation of microglia cultures with lipopolysaccharides and treatment with antipsychotic drugs (risperidone, haloperidol, and clozapine), neurotransmitters (dopamine, serotonin, and acetylcholine), or a combination of dopamine and either haloperidol or clozapine. Results: Haloperidol and clozapine decreased IL-6 secretion by microglia cells when treated at a concentration of 10-5M. Interestingly, dopamine at a concentration of 1 μM increased IL-6 secretion by the microglia cells, while a concentration of 100 μM decreased it. The combination of dopamine (from 0.001 μM to 100 μM) with either haloperidol (10-5M or 10-8M) or clozapine (10-5M or 10-7M) attenuated IL-6 secretion in a bell-shaped curve with a peak at 1 μM. High concentrations of both haloperidol and clozapine decreased IL-6 secretion, while low concentrations modestly increased IL-6 levels. Conclusions: Our findings support anti-inflammatory properties of antipsychotic drugs, and suggest that their action is mediated via the inhibition of dopaminergic activity in microglia cells. The bell-shaped curve of IL-6 secretion by microglia might suggest the presence of an “optimal zone” of operation for these cells that is mediated by dopamine.
Design of Broadband Log Periodic Dipole Antenna Using Swarm Optimization

This paper presents an optimized design for Log Periodic Dipole Array (LPDA) for WiMA X, GSM, DCS, Wi-Fi, 3G mobile co mmun ication and Bluetooth bands. First of all, the LPDA is designed by evaluating length, diameter and spacing between dipole elements. Then, the design is optimized by using evolutionary techniques called swam optimization and it is observed that the optimized design has smaller size and better gain than the conventional LPDA design. Thus, the optimizat ion technique provides a cost effective solution with improved characteristics for LPDA.
Evaluation of Methodologies for the Design and Analysis of Freeway Weaving Sections

Weaving sections are common design elements on freeway facilities such as near ramps and freeway-to-freeway connectors. Traffic operational problems often exist at weaving areas even when traffic demands are less than capacity because of the complexity of vehicle interactions, resulting in poor level of service (LOS) and potential safety problems. The objective of the work described in this paper is to evaluate the new weaving analysis methodology developed for the forthcoming edition of the Highway Capacity Manual (HCM2010). The authors applied the method to 30 real-world weaving sections throughout the U.S. covering a wide range of design and traffic characteristics, for a total of 289 data points of volumes and speeds. The analysis of the results from the application of the method indicates that the method overpredicts the density of the weaving sections.
A performance assessment of Bayesian networks as a predictor of breast cancer survival

This paper is intended to assess the survival analysis of Bayesian Network models, Neural Network models, and Logistic Regression models. Our analysis will be performed on the SEER data set, a registry of women with breast cancer from the National Cancer Institute. Each model will include the following prognostic variables; progesterone (PR), estrogen (ER), lymph involvement (N), morphology (M), extension and tumor size (T), and histological grade (G). These variables have proven to be significant to the model in regards to breast cancer survival. We have found that a Bayesian network model, which is a combination of an automatically generated network by the BKD software and human expert knowledge, performs comparatively better than the Neural Networks and logistic regression models. The Bayesian network also offers the advantage of explaining the causal relationships among the variables, thus it is the most promising model
GNC Systems Development in Conjunction with a RvDHardware-in-the-Loop Simulator

In the last years several satellite projects started providing on-orbit servicing capabilities. This means that an on-orbit servicing spacecraft approaches to a client satellite, captures it, takes over the attitude and orbit control and possibly performs additional maintenance tasks. One of the critical phases of such a mission is to ensure a safe and reliable rendezvous and docking (RvD) process. Especially this phase has to be analyzed, simulated and verified in detail. For the special case of verification of rendezvous and docking sensors and systems, DLR has built a new hardware-in-the-loop simulator capable of testing and verifying rendezvous and docking subsystems. This simulator is known as the European Proximity Operations Simulator (EPOS). It is part of the German Space Operations Center (GSOC) located near Wesling. After completion of the baseline simulator concept in 2009, the facility is going to be used for the first time for an internal research project concentrating on a CCD-based rendezvous and docking sensor. This leads to results of both the research project and information about the facility in operation. The paper presents first results and provides insight into ongoing work and projects as well as an outlook of future things to come.
SPIM (Stanford Pipelined Iterative Multiplier): A Pipelined 64 X 64 Bit Iterative Multiplier

Abstract : A 64 by 64 bit iterating multiplier, SPIM (Stanford Pipelined Iterative Multiplier) is presented. The pipelined array consists of a small tree of 4:2 adders. The 4:2 tree is better suited than a Wallace tree for a VLSI implementation because it is a more regular structure. A 4:2 carry save accumulator at the bottom of the array is used to iteratively accumulate partial products, allowing a partial array to be used, which reduces area. SPIM was fabricated in a 1.6 micron CMOS process. It has a core size of 3.8 X 6.5mm and contains 41 thousand transistors. The on chip clock generator runs at an internal clock frequency of 85MHz. The latency for a 64 X 64 bit fractional multiply is under 120ns, with a pipeline rate of one multiply every 47ns.