Miracle-dz/UniFAR-FTUs huggingface dataset:
Performance evaluation of cellular mobile systems with successive co-channel interference cancellation

This paper presents an analytical framework for the performance evaluation of cellular mobile radio systems equipped with smart antenna systems. In particular, the paper focuses on low-complexity systems which are able to successively suppress the strongest active interferers. The desired user fading statistics is assumed to be flat Rayleigh, Rician, or Nakagami, whereas the interfering signals are assumed to be independent and subject to slow flat Rayleigh fading. The paper starts by presenting generic closed-from expressions for the the carrier-to-interference ratio probability density function after interference cancellation. Based on that, exact closed-form expressions for the outage probability and average error rate formulas are derived. Finally, the impact of some practical considerations on the performance of successive interference cancellation are investigated. More specifically, the effect of traffic loading, the overall spectral efficiency gain, and the impact of time delay are studied.
DOUBLE SHEAR TIMBER CONNECTIONS WITH DOWEL TYPE FASTENERS

For the design of single fastener connections with dowel type fasteners Johansen's Yield Model extended by Meyer is generally adopted. However, since this model gives a poor prediction of the load carrying capacity of single fastener connections with rigid fasteners, an extension based on fracture mechanics considerations was developed. The strength of multiple fastener connections does not equal the strength of the single fastener connection multiplied by the number of fasteners. Generally the connection fails at a lower load because the timber splits and/or because of softening of the wood, which can be explained by the complicated stress distribution around the fastener position. The stiffness of multiple bolted connections is lower than the stiffness of the single bolted connection multiplied by the number of bolts, which can be explained by the individual hole clearance. Both the strength and stiffness of multiple fastener connections and the strength of single fastener connections with dowel type fasteners were studied.
Surgical Modalities versus Conservative Treatment for Acute Injuries of Lateral Ligament of Ankle

Acute ankle sprain is a very common injury which comprises 80% of all ankle injuries. Acute ankle sprain affects almost exclusively the lateral ligamentous complex including ATFL followed by CFL, while PTFL is rarely of clinical significance. To study the clinical trials in a Meta-analytical form, in order to compare surgical versus conservative treatments for the management of acute injuries of the lateral ligament complex of the ankle. We performed this systematic review and meta-analysis in accordance to the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and Meta-analyses Of Observational Studies in Epidemiology (MOOSE) statements. PRISMA and MOOSE are reporting checklists for Authors, Editors, and Reviewers of Meta-analyses of interventional and observational studies. In the present study, we searched Medline via PubMed, SCOPUS, Web of Science, and Cochrane Central Register of Controlled Trials (CENTRAL) from their inception till April 2019. The search retrieved 702 unique records. We then retained 48 potentially eligible records for full-texts screening. Finally, 14 studies (Total No. of patients=1896) were included in the present systematic review and meta-analysis Conclusion: Starting a physiotherapy programme as early as possible is essential to control pain and swelling, to improve and maintain the range of motion, and to minimize the risk of stiffness and muscle wasting, which are the two decisive factors which delay patients from returning to their normal activities. Regardless of severity, surgery for acute ankle sprain is not recommended anymore.
Against the Current: Exploring the Experiences of Five Fathers With a History of Substance Use

Abstract The United States is in the midst of an opioid epidemic that affects family systems, yet little is known about the experiences of parents who abuse substances. Five fathers with a substance use disorder, all over the age of 18, and having at least one child, were participants. Qualitative methods were used to uncover how these fathers view their journey of parenthood. In-depth interviews were conducted using the Kawa model as a conceptual framework to gain a comprehensive understanding of their experiences. Four themes emerged. More research is needed to better understand these meaningful occupations and the role gender plays.
School Counselors’ Exposure to Student Suicide, Suicide Assessment Self-Efficacy, and Workplace Anxiety: Implications for Training, Practice, and Research

In a national sample of current school counselors with membership in the American School Counselor Association (N = 226), we examined the prevalence of suicide training among school counselors as well as differences in suicide assessment self-efficacy and workplace anxiety between school counselors who were exposed to student suicide and those who were not. The results indicate that 38% of school counselors were not prepared for suicide prevention during graduate training. Although school counselors’ exposure to suicide was not related to their workplace anxiety, those who were exposed to a student suicide attempt had higher suicide assessment self-efficacy scores than those who were not. This study demonstrates the impact of suicide exposure on school counselors and the need for additional suicide assessment training.
Studies for an LHC Pilot Run with Oxygen Beams

Motivated by the study of collective effects in small systems with oxygen-oxygen (O-O) collisions, and improvements to the understanding of high-energy cosmic ray interactions from proton-oxygen (p-O) collisions, a short LHC oxygen run during Run 3 has been proposed. This article presents estimates for the obtainable luminosity performance in these two running modes based on simulations of a typical fill. The requested integrated luminosity, projected beam conditions, data-taking and commissioning times are considered and a running scenario is proposed.
Non-linear aeroelastic investigations of store(s)-induced limit cycle oscillations

In the current work, the study of the aeroelastic behaviour of a wing with external store(s), such as a missile or drop fuel tank, is presented. The aeroelastic governing equations derived for a cantilever wing with coupled bending and torsion modes account for structural and aerodynamic non-linearities. Coupling terms retained in the aeroelastic governing equations are due to: (a) the non-linear beam theory, (b) the aerodynamic non-linearities of a quasi-steady model with stall, and (c) the non-linear kinematics terms of the store(s). As presented in the paper, this aircraft configuration can induce pathologies, such as store(s)-induced limit cycle oscillations (or si-LCOs), very different from the one of a clean wing configuration, and from the one obtained from the linearized form of the aeroelastic governing equations. Time domain simulation, phase portrait, and bifurcation analyses are performed for various velocities, initial conditions, and store(s)-sensitive parameters — such as store mass, number, location along the wing — to examine the dynamic aeroelastic instabilities of the system (e.g. the onset of flutter and LCO). Numerical studies indicate the presence of regions of subcritical Hopf-bifurcation, corresponding to an unstable LCO, for velocities below the linear flutter velocity.
2f2-f1 dpoae sources in contradiction to the two-source/twomechanism model?

Distortion product otoacoustic emissions (DPOAEs) can be separated into distortion (active/hair-cell-generator based) and reflection sources (passive/hydro-mechanically based). These sources are linked to specific physiological-acoustic events along the cochlear partition. Researchers have shown that the 2f1-f2 component (using parameters of f2/f1=1.22, 65/55 dB SPL) is dominated by the distortion source. However, the 2f2-f1 is far less well understood and rarely tested. Measured with presumed optimal parameters, f2/f1=1.08, 65/65 dB SPL it is likely dominated by the reflection source. Researchers rarely have described ripple characteristics of the 2f2-f1 fine structure (the function of magnitude versus frequency assessed using high-resolution analysis) well known for 2f1-f2. Differences are expected between components due to their putative differences of kind and place of production. The purpose of this study was to determine how ripple characteristics differ between 2f1-f2 and 2f2-f1 using fine-structure DPOAE analyses elicited by parameters promoting robust responses for components using two sets of parameters: (1) f2/f1=1.22, 65/55 dB SPL and (2) f2/f1=1.08, 65/65 dB SPL. Inverse Fast Fourier Transform conversion of frequency into time–domain measures separated the sources. The first prediction was 2f1-f2 would be dominated by the distortion source, given f2/f1=1.22, 65/55 dB SPL, and dominated by the reflection source with f2/f1=1.08, 65/65 dB SPL. The 2f2-f1 component, posited on theoretical grounds, would be dominated by the reflection source for both parameter sets. The second prediction was the two components would differ in ripple spacing, depth, and prevalence, presumably in deference to the diversity in their respective origins. The following conclusions could be made: First, the distortion source was affirmed to be dominant for the 2f1-f2 DPOAE when measured using the f2/f1=1.22, 65/55 dB SPL parameter set for all participants (24/24). Furthermore, the reflection source was confirmed to be dominant for the other three conditions, with 100% occurrence for the 2f2-f1 DPOAE measured using the f2/f1=1.08, 65/65 dB SPL. There also were significant differences among the ripple characteristics measured under the four conditions. These results, while not contradicting two-source/two-mechanism model overall, nevertheless suggest need for some revision, as proposed. They also may help to promote greater interests in 2f2-f1, including applications.
Dynamic CFD Simulation of Aircraft Recovery to an Aircraft Carrier

perform localized mesh correction to restore the quality of the deformed grid surrounding the aircraft. The unsteady aircraft loads provided by these simulations were compared to the Manned Flight Simulator (MFS) aerodynamic model for the same aircraft configuration and airwake velocity profile. This provided a one-to-one comparison of the aerodynamic model used in the MFS with the CFD F/A-18 aircraft model that includes the coupling effects between the aircraft and ship flowfields. The lift force comparisons show a much more rapid increase in lift for the one-way coupled MFS model as the aircraft crosses the flight deck ramp. This demonstrates the differences in the two models, and highlights the importance of modeling the flowfield coupling physics of aircraft/ship recovery operations in manned-flight-simulation environments. I. Introduction Accurate models for the prediction of the dynamic response of an aircraft to a ship airwake are critical to the development of realistic flight simulation tools for aircraft carrier launch and recovery operations. For this simulation environment, the aircraft model is integrated with a ship airwake flowfield such that the aircraft loads are obtained in the presence of the fluctuating, turbulent airwake. Of particular interest is the coupled interaction between the ship and aircraft flowfield in the vicinity of the deck ramp and touchdown areas, as this point in the landing flightpath produces the highest workload for the pilot. Additionally, the degree of coupling between the aircraft and airwake is highest in this location. Currently, the Manned Flight Simulator (MFS) at NAVAIR Patuxent River, MD incorporates a comprehensive real-time simulation model of the F-18 that is comprised of multiple aircraft aspects including the models of the propulsion system, landing gear, avionics, and aerodynamics. Ship airwake models are integrated with the aircraft model using an array of points distributed on the airframe, typically at the nose, tail, aircraft center of gravity, and wingtips. The aircraft model samples the velocities of a stand-alone airwake flowfield at these points to derive aircraft forces and moments from a look-up table generated from wind tunnel/flight test data. Unsteady, turbulent airwake data generated from computational fluid dynamics (CFD) calculations have been integrated with the MFS F-18 model to provide the fluctuating airwake environment through which the aircraft flies 1 .
Temperature compensated crystal oscillator employing new shape GT cut quartz crystal resonator

The authors describe a temperature internally compensated crystal oscillator using the novel GT-cut quartz crystal resonator formed by an etching method. The object is to clarify if drain output resistance R/sub d/ and resistance R/sub qs/ connected in series to the resonator in elements constructing a CMOS oscillator circuit which suppress spurious vibrations, influence oscillation frequency and frequency-temperature behavior. First, a CMOS quartz crystal oscillator circuit is transformed into an equivalent circuit, and an equation which gives oscillation frequencies is derived from Kirchhoff's law. Second, since the equation is given as a function of R/sub d/ and R/sub qs/, it is theoretically predicted and experimentally shown that R/sub d/ and R/sub qs/ influence the oscillation frequency and the frequency-temperature behavior. <<ETX>>
Twenty-First Century Skill Building for Homeschooled Students With Special Needs

Although problem-based learning (PBL) is not new, the ways in which homeschool teachers use attributes of PBL with their students with special needs is unknown. Posts were collected from 20 homeschool teachers’ blogs. After I coded 87 blog posts, results showed that homeschool teachers provided a variety of opportunities for their students to practice 21st-century skills. Specifically, they developed lessons that encouraged students to share what they learned and developed cross-disciplinary content, most often with language arts. Results may provide insights for homeschool teachers interested in more purposefully implementing PBL experiences with the purpose of teaching 21st-century skills.
Trucking Industry Preferences for Driver Traveler Information Using Wireless Internet-enabled Devices

If truck drivers could use internet-enabled wireless devices to access traveler information, what type of information would they most want to have? The answer almost surely varies according to the type of trucking operation, location, and many other factors. We analyzed preferences for traveler information from managers of 700 trucking companies to determine how they valued information about such things as locations of freeway incidents and lane closures, port and rail terminal schedules and clearances, delays at terminal train arrivals at grade crossings, weather, and travel times at alternative routes. Using a factor-analytic model with regressor variables, we found clear differences in preferences across types of trucking operations.
Comparisons of learning preferences in an engineering program

The results are presented of the responses of first year engineering students, fourth year engineering students and faculty to an Index of Learning Styles. This self-report forced-choice instrument classifies the learning preferences of the respondents on four scales: active/reflective, sensing/intuition, visual/verbal and sequential/global. The faculty learning preferences compared with both groups of engineering students were significantly more Reflective, Intuitive, and Visual. The faculty preferences were also significantly less Sequential than the first year student group. Although the faculty ILS learning preference was strongly Visual, even more Visual than the students', they mostly teach in a Verbal style, probably because it is easier to do so. The teaching and presentation of engineering courses would be more effective for the majority of students if they contained elements which appealed to all learning styles, which, these results suggest would require them to incorporate and emphasise more Active, Sensing, Visual and Global components.
The Brazilian State as an agent of the reproductive process in a village in the Baixo-Sul of Bahia

Abstract This article explores reproduction as a broad phenomenon that is integrated to social life and marked by power relations, in an analysis of the processes and structures that integrate subjects’ lives and bind them with the State. Reproductive processes, which are more than physiological, connect subjects, health services and other sectors that represent the State. This ethnographic study, carried out between 2011 and 2015, focused on reproduction as a biosocial process among mostly black, low-income shellfish gatherers and fishermen living in Riachão - a village located on an island in the ‘baixo sul’ region of Bahia. Through ethnographic analysis, we explore the experiences of the reproductive process of the 18 women we followed during the research to conclude that the State plays a central role in the network of relationalities that constitute reproduction, establishing an oscillating and ambiguous relationship of care and violence with women at each stage: a fragile and discontinued care relationship during pregnancy; an intense, exclusive relationship marked by violence during childbirth; and a lack of care for the health of women in the puerperium, combined with high surveillance in the care of babies.
Transient receptor potential V1 modulates neuroinflammation in Parkinson’s disease dementia: Molecular implications for electroacupuncture and rivastigmine

Objective(s): Parkinson’s disease (PD) is a common progressive neurodegeneration disease. Its incidence increases with age and affects about 1% of people over 60. Incidentally, transient receptor potential V1 (TRPV1) and its relation with neuroinflammation in mouse brain has been widely reported. Materials and Methods: We used 6-hydroxydopamine (6-OHDA) to induce PDD in mice. We then used the Morris water maze and Bio-Plex to test learning and inflammatory mediators in mouse plasma. Western blotting and immunostaining were used to examine TRPV1 pathway in the hippocampus and medial prefrontal cortex (mPFC). Results: On acquisition days 3 (Control = 4.40 ± 0.8 sec, PDD = 9.82 ± 1.52 sec, EA = 5.04 ± 0.58 sec, Riva = 4.75 ± 0.87 sec; P=0.001) and 4, reversal learning days 1, 2, 3 (Control = 2.86 ± 0.46 sec, PDD = 9.80 ± 1.83 sec, EA = 4.6 ± 0.82 sec, Riva = 4.6 ± 1.03 sec; P=0.001) and 4, PDD mice showed significantly longer escape latency than the other three groups. Results showed that several cytokines were up-regulated in PDD mice and reversed by EA and rivastigmine. TRPV1 and downstream molecules were up-regulated in PDD mice and further reversed by EA and rivastigmine. Interestingly, α7 nicotinic receptors and parvalbumin levels in both the hippocampus and prefrontal cortex increased in EA-treated mice, but not in rivastigmine-treated mice. Conclusion: Our results showed that TRPV1 played a role in the modulation of neuroinflammation of PDD, and could potentially be a new target for treatment.
The rs4415084 and rs10941679 Might be Risk Conferring Factors for Breast Cancer among Iranian Women

Breast cancer is a major cause of cancer-associated death among Iranian women with an increasing trend in breast cancer incidence in recent years. However, few data about genetic determinants associated with breast cancer among Iranian females are available. According to the literature, the genetic variants at the non-coding region of 5q12 play a critical role in breast cancer susceptibility. Therefore, this study aims to determine the association of rs4415084 (T>C) and rs10941679 (A>G) with breast cancer risk in an Iranian sample population. Peripheral blood samples, taken from 72 patients and 65 controls, were subjected to DNA extraction and genotyping of the mentioned polymorphism by Tetra-primer amplification refractory mutation system PCR (Tetra-ARMS-PCR) assay. Also, the demographic characteristics of the participants were obtained. The results show that the majority of patients had estrogen-receptor (ER) and progesterone-receptor (PR) positive tumors (75% for either receptor) and 36 % were human epidermal growth factor receptor-2 (HER2) positive. Also, the majority of the tumors were at T2 (59.7 %), N0 (41.6 %), and M0 (86.1 %) grade. Moreover, a considerable association between the rs10941679 polymorphism and breast cancer was noticed (p=0.01) with significantly increased susceptibility of AG genotype. Genotyping of rs4415084 also revealed that TC and CC genotypes significantly increased breast cancer risk. This work revealed that the rs4415084 and rs10941679 at 5q12 might be risk-conferring factors for breast cancer among Iranian women, which could be employed in breast cancer screening and prognosis approaches.
New Techniques to Compute the Linear Tune

Tune determination in numerical simulations is an essential aspect of nonlinear beam dynamics studies. In particular, because it allows probing whether a given initial condition is close to resonance, and it enables assessment of the stability of the orbit, i.e. whether the motion is regular or chaotic. In this paper, results of recently developed techniques to obtain accurate tune computation from numerical simulation data are presented and discussed in detail.
Effects of Coating Thickness, Test Temperature, and Coating Hardness on the Erosion Resistance of Steam Turbine Blades

This paper experimentally examines the influence of coating thickness, test temperature, coating hardness, and defects on the erosion resistance of boride coatings, ion plating CrN coatings, and thermal spraying coatings. The results demonstrate that the erosion rate of coating can be reduced effectively by improving coating hardness and thickness with the absence of the cracks of coating during the coating process. In comparison with thermal spraying coatings, boride coatings and ion plating CrN coatings are more suitable for protecting steam turbine blades from solid particle erosion due to higher erosion resistance. However, blades cannot be protected effectively when coating is thinner than a critical value θ crit , Based on our results, it is recommended that the protective coating for the steam turbine blade should be thicker than 0.02 mm. In addition, the effect of temperature on erosion resistance of the coating is strongly dependent on the properties of transition layer between coating and substrate material. For the coating without pinholes or pores in the transition layer, the variation in erosion rate with temperature is consistent with that of uncoated substrate material. However, the erosion rate of coating descends with the elevation of test temperature when a lot of pinholes or pores are produced in the transition layer.