Miracle-dz/UniFAR-FTUs huggingface dataset:
Surface Patterning and Rotordynamic Response of Annular Pressure Seals Used in Turbomachinery

Rotordynamic instability problems in turbomachinery have become more important in recent years due to rotordynamic components with higher speeds and higher power densities. These features typically lead to increased instability risk in rotor dynamic components as fluids-structure interactions take place. In addition, critical damage of rotordynamic components can result from high level vibrations of supporting bearing system, where the reduced rotor speed can lead to system operating near the rotor critical speed. Therefore, increased accuracy in modeling of rotordynamic components is required to predict the potential instability issues in high performance rotordynamic design. The instability issue may potentially be eliminated in design stage by varying the characteristics of the unstable components. One such turbomachinery component is the annular pressure seal. The annular pressure seals are specifically designed to prevent the fluid leakage from high pressure stage to low pressure stage in turbomachinery. Typical annular pressure seals have two different flow regions, an annular jet-flow region between the rotor and stator, and cylindrical or circumferential indentions on the stator/rotor surface that serve as cavities where flow recirculation occurs. As the working fluid enters the cavities and recirculates, the kinetic energy is reduced, resulting in a reduction of leakage flow. The current challenge is to model with higher precision the interaction between the rotordynamic components and the working fluid. In this dissertation, this challenge was overcome by developing a hybrid Bulk Flow/CFD method to compute rotordynamic responses for the annular pressure seals. In addition, design of experiments studies were performed to relate the surface patterning with the resulting rotordynamic response for the annular pressure seals, in which several different geometry specifications were investigated. This study on annular pressure seal design generated regression models for rotordynamic coefficients that can be used as optimization guidelines. Research topics related to the annular pressure seals were presented in this dissertation as well. The reduced
Evaluation of post total laryngectomy voice rehabilitation by Provox®2 voice prosthesis (preliminary study)

Introduction: Tracheo-esophageal puncture (TEP) with inserting a silicon prosthesis is the gold standard for voice rehabilitation after total laryngectomy (TL). Provox® is an indwelling voice prosthesis which is widely used nowadays. Objective: to evaluate the outcomes of Provox®2 voice prosthesis in vocal rehabilitation after total laryngectomy. Patients and methods: Sixteen patients who had inserted Provox®2 voice prosthesis after total laryngectomy were subjected to history taking, general ENT examination and neck examination. Patients were evaluated for voice outcome two months after the application of the Provox®2 by the maximum phonation time (MPT), Perceptual voice quality analysis by GRBAS scale, Speech intelligibility and Patient’s satisfaction. Results: We found that the production of 100% intelligible voice with a good MPT and quality of voice (assessed by GRBAS scale) using a device with an average life of 375 days would be considered as favorable. Conclusions: The use of Provox®2 voice prosthesis is a safe and satisfactory method for post total laryngectomy voice rehabilitation.
Repetitive Control Based Phase Voltage Modulation Amendment for FOC-Based Five-Phase PMSMs Under Single-Phase Open Fault

This article investigates the most elementary phase voltage modulation (PVM) for a more generic five-phase permanent magnet synchronous motor drive under a single-phase open fault. Most works on this topic are intended for some specific motor types, and in most cases, it assumes the inverter can still be treated as a linear switching-mode power amplifier. This article figures out that due to an oscillating neutral, the phase voltage is unable to be linearly modulated, which is to say the simplest sinusoidal pulsewidth modulation is problematic to fit a newly developed well-decoupled model under single-phase open fault. To this end, a nonlinear transform incorporating the faulty phase voltage is theoretically proposed, which alleviates the influence of oscillating neutral on PVM, and several approaches to cancel the need for phase voltage sensors are comparatively investigated. Accordingly, the PVM with repetitive control and back electromotive force compensation is put forward to fix the “faulty inverter” in practice. Plausible PVM approaches are tested experimentally, and the superiority of the proposed PVM is confirmed by experimental results.
DEMOGRAPHIC DISTRIBUTION, ETIOLOGICAL SPECTRUM, INJURY CHARACTERISTICS, MANAGEMENT AND PREVENTIVE RECOMMENDATIONS FOR MAXILLOFACIAL INJURIES AT A TERTIARY CARE CENTRE IN CENTRAL INDIA

Oral and maxillofacial injuries worldwide can pose considerable long term orofacial deformity and disability. They present a therapeutic challenge to trauma, maxillofacial and plastic surgeons practicing in developing countries. OBJECTIVE: This retrospective study was conducted to find out the epidemiological characteristics, etiology, pattern of maxillofacial injury and the subsequent treatment planned in northern regions of Madhya Pradesh at a tertiary care teaching institution at Gwalior. METHODOLOGY: A total of 170 consecutive maxillofacial trauma patients reporting at the trauma Centre and the outpatient department (OPD) of dental surgery at Gajra Raja Medical College, Gwalior were analyzed in a span of 18 months to determine the demographic details, etiological risk factors, pattern of facial injuries and treatment given at this institute. RESULTS: An 18 months survey was conducted from November 2013 till March 2015 to evaluate 170 subjects. Males outnumbered females with a male: female ratio of 5.5: 1. Road traffic accidents (RTA) turned out to be the dominant etiological risk factor involved in 52.9% of the cases. Motor cycle accidents and the influence of alcohol played a prominent role in etiology. Mandible was the most common bone involved in injuries. Parasymphysis and midsymphysis were the commonly involved sites. Closed reduction with arch bar fixation under local anesthesia was the commonly given treatment modality used in 73.5% cases. CONCLUSION AND RECOMMENDATIONS: RTA on twowheelers and under the influence of alcohol is still the most promising risk factor of facial trauma. Periodic review of driving skills, stricter implementation of traffic rules, timely maintenance of faulty roads and promotion of educational campaigns to create general awareness regarding the relation between risk factors and the mortality and morbidity associated with maxillofacial injuries are recommended.
A Simple Technique to Make Bupivacaine a Rapid-acting Epidural Anesthetic

Bupivacaine is a preferred epidural anesthetic in obstetrics because it has a long duration of action and it causes minimal motor blockade. Its major disadvantage is its slow onset of action. This report outlines the use of warm bupivacaine to shorten the latent period of onset of action of bupivacaine while maintaining its properties of long duration of action and minimal motor blockade.
Bridging the p-type transparent conductive materials gap: synthesis approaches for disperse valence band materials

Abstract. Transparent conductive materials (TCMs) with high p-type conductivity and broadband transparency have remained elusive for years. Despite decades of research, no p-type material has yet been found to match the performance of n-type TCMs. If developed, the high-performance p-type TCMs would lead to significant advances in a wide range of technologies, including thin-film transistors, transparent electronics, flat screen displays, and photovoltaics. Recent insights from high-throughput computational screening have defined design principles for identifying candidate materials with low hole effective mass, also known as disperse valence band materials. Particularly, materials with mixed-anion chemistry and nonoxide materials have received attention as being promising next-generation p-type TCMs. However, experimental demonstrations of these compounds are scarce compared to the computational output. One reason for this gap is the experimental difficulty of safely and controllably sourcing elements, such as sulfur, phosphorous, and iodine for depositing these materials in thin-film form. Another important obstacle to experimental realization is air stability or stability with respect to formation of the competing oxide phases. We summarize experimental demonstrations of disperse valence band materials, including synthesis strategies and common experimental challenges. We end by outlining recommendations for synthesizing p-type TCMs still absent from the literature and highlight remaining experimental barriers to be overcome.
Treatment Effect on Social Engagement with Mandibular Implant Overdenture Therapy

The purpose of this research study was to investigate if patients with conventional mandibular dentures became more socially engaged following mandibular two-implant overdenture therapy, to determine if gender differences exist regarding treatment effect on social engagement with mandibular two-implant overdenture therapy, and to investigate patient satisfaction post-treatment. Edentulous patients had conventional maxillary and mandibular complete dentures fabricated at the UIC COD. After a minimum of four months of function, the patients underwent two-stage mandibular implant overdenture therapy. Two interforaminal implants were placed, and after a minimum of three months healing time, the two osseointegrated mandibular implants were uncovered and healing abutments were inserted. A minimum of two weeks later, the mandibular denture was converted chair-side into a two implant-retained mandibular overdenture with resilient attachments. Information on demographics was obtained and patients completed both pre- and post-treatment questionnaires on social engagement after functioning with each prosthesis for a minimum for four months. In addition, post-treatment semantic differential scales and modified version of Oral Health Impact Profile-14 were completed. Twenty-seven patients, 14 men and 13 women, with a mean age of 62 years (SD±12), participated in the study. Statistical software (SPSS v.20, Armonk, NY, USA) was used for descriptive and statistical analyses. Wilcoxon Signed Ranks Tests resulted in significant differences (p 60 years of age for “engaged in leisure phone conversations with family” (p=0.05), “went to restaurants” (p=0.02) and “engaged in leisure phone conversations” (p=0.05). The overall median post-treatment semantic scale was nine, signifying a high level of post-treatment satisfaction and the overall median post treatment OHIP-14 was zero suggesting there was no interference by oral health with quality of life. The results are consistent with a small treatment effect on social engagement due to implant-supported mandibular overdenture treatment. There may be differences related to gender and age. Patients had a high level of satisfaction with treatment based on semantic differential scales and modified OHIP-14. Continuation of the current research study to obtain a larger sample size is recommended to further evaluate the treatment effect on social engagement with mandibular implant overdenture therapy.
Nomenclature Revision for Encapsulated Follicular Variant of Papillary Thyroid Carcinoma

Importance Although growing evidence points to highly indolent behavior of encapsulated follicular variant of papillary thyroid carcinoma (EFVPTC), most patients with EFVPTC are treated as having conventional thyroid cancer. Objective To evaluate clinical outcomes, refine diagnostic criteria, and develop a nomenclature that appropriately reflects the biological and clinical characteristics of EFVPTC. Design, Setting, and Participants International, multidisciplinary, retrospective study of patients with thyroid nodules diagnosed as EFVPTC, including 109 patients with noninvasive EFVPTC observed for 10 to 26 years and 101 patients with invasive EFVPTC observed for 1 to 18 years. Review of digitized histologic slides collected at 13 sites in 5 countries by 24 thyroid pathologists from 7 countries. A series of teleconferences and a face-to-face conference were used to establish consensus diagnostic criteria and develop new nomenclature. Main Outcomes and Measures Frequency of adverse outcomes, including death from disease, distant or locoregional metastases, and structural or biochemical recurrence, in patients with noninvasive and invasive EFVPTC diagnosed on the basis of a set of reproducible histopathologic criteria. Results Consensus diagnostic criteria for EFVPTC were developed by 24 thyroid pathologists. All of the 109 patients with noninvasive EFVPTC (67 treated with only lobectomy, none received radioactive iodine ablation) were alive with no evidence of disease at final follow-up (median [range], 13 [10-26] years). An adverse event was seen in 12 of 101 (12%) of the cases of invasive EFVPTC, including 5 patients developing distant metastases, 2 of whom died of disease. Based on the outcome information for noninvasive EFVPTC, the name â? ononinvasive follicular thyroid neoplasm with papillary-like nuclear featuresâ?  (NIFTP) was adopted. A simplified diagnostic nuclear scoring scheme was developed and validated, yielding a sensitivity of 98.6% (95% CI, 96.3%-99.4%), specificity of 90.1% (95% CI, 86.0%-93.1%), and overall classification accuracy of 94.3% (95% CI, 92.1%-96.0%) for NIFTP. Conclusions and Relevance Thyroid tumors currently diagnosed as noninvasive EFVPTC have a very low risk of adverse outcome and should be termed NIFTP. This reclassification will affect a large population of patients worldwide and result in a significant reduction in psychological and clinical consequences associated with the diagnosis of cancer.
Development and Evaluation of the Effectiveness of Vernonia Cinerea (VC) Cookies for Smoking Cessation

Background: Vernonia cinerea (VC) has been known as a herbal medicine for a long time. Recently, it was used for smoking cessation. The study investigated the effectiveness of VC cookies in smoking cessation, side effects and satisfaction with this product. Methods: The study was designed as a quasi-experimental study. VC cookies were developed. A total of 63 subjects (high school students) were selected and all were current smokers. Each subject was selected into the VC or non-VC (Control) group. The study (VC) group received 5 VC pieces a day, whereas the control (non VC) group received 5 plain cookies per day for six months. All data were collected via a questionnaire paper. The descriptive and analytical analyses including Chi-square (χ2) test and Mann-Whitney–test, and adjusted odds ratio and 95% confidence interval were used. Results: The percentages of quitters in the study (VC) group were significantly higher than those in the control (non VC) group throughout 6 month periods (VC; 81.8, 97, 81.8%, Non-VC; 3.3, 6.7, 13.3%, p <.001, .001, and <.001, consecutively). Additionally, average carbon-monoxide (CO) levels of the VC group from 1-month to 6-month periods were significantly lower compared to the non VC group (p <.001). Common side effects of VC found, including; dry mouth and throat, high blood pressure. Conclusion: Vernonia cinerea (VC) has been shown the high percentages of sustained abstinence rates with the decrease of CO levels compared to non VC group. Some minor side effects and positive feedback regarding VC cookies were also reported. Further investigations of the efficacy and safety of VC products should be conducted.
Clinical study of cutaneous infections in children

Background: Dermatological ailments contribute to one third of outpatient visits in paediatric clinics. Among these, cutaneous infections are found to be the commonest as per various studies. This study was conducted to find out the commonest cutaneous infections in children. Aim was to find out the prevalence of various cutaneous infections in children. Methods: In this study 200 children aged between 1and 12-years attending outpatient clinic with signs and symptoms suggestive of cutaneous infection were included in the study. History, physical examination and appropriate tests were done to arrive at the diagnosis. Results: Here, 133 children were male and 67 were female. Viral infections were found to be the commonest cutaneous infections and were found in 85 children followed by bacterial infections in 52, fungal infections in 42 and infestations in 21. The presence of high humidity and hot climate in our coastal city along with the prevalent clothing pattern, overcrowding and socio economic factors play a significant role in the type of cutaneous paediatric infection found in that geographical area. Conclusions: Proper hygiene, education and clothing along with avoidance of overcrowding and early medical attention will help to prevent peadiatric cutaneous infections.
A Hybrid Low-Cost Bandpass Filter With SAW Resonators and External Lumped Inductors Using a Dual-Coupling Scheme

A class of hybrid low-cost bandpass filter (BPF) with only two kinds of circuit components, straightforward design procedure, and miniaturized circuit footprint is presented. The proposed BPF is based on a hybrid module composed of one type of surface-acoustic-wave (SAW) resonator and one external lumped inductor. Compared with traditional SAW-resonator-based BPF devices, the use of a single-SAW-resonator model for its design reduces the cost and complexity by avoiding the need for well-matched SAW-resonator pairs. The engineered filter topology consists of a dual-path coupling scheme, in which one coupling path is simply a series-type SAW resonator and another path is made up of two SAW resonators that are intercoupled by means of an external inductor in the middle. Such coupling architecture generates two additional transmission zeros (TZs) that allow to increase the out-of-band power-rejection levels and enlarge the stopband bandwidth. A circuit analysis based on the even-/odd-mode method is applied to derive its equivalent circuit that can be directly matched to a conventional transversal filter topology. The obtained equivalent circuit readily illustrates the operational mechanisms of the proposed filter principle in terms of reflection zeros and TZs. Subsequently, the quality factors of its even- and odd-mode-subnetwork resonators are analytically derived, and the obtained numerical results determine the tradeoff existing when choosing the external-inductor value among various performance metrics. For experimental validation purposes, two 418-MHz BPF prototypes formed by one and two in-series-cascade-connected second-order filtering units, respectively, are manufactured and tested. The circuit footprints of these filters are largely reduced by using a three-layer lamination technique for their physical implementations. The measured results show sharp-rejection filtering responses and are in close agreement with the theoretical predictions.
Functions consistent with real numbers, and global extrema of functions in exponential Takagi class

The functions of the Takagi exponential class are similar in construction to the continuous, nowhere differentiable Takagi function described in 1901. They have one real parameter $v\in (-1;1)$ and at points $x\in{\mathbb R}$ are defined by the series $T_v(x) = \sum_{n=0}^\infty v^n T_0(2^nx)$, where $T_0(x)$ is the distance between $x$ and the nearest integer point. If $v=1/2$ then $T_v$ coincides with Takagi's function. In this paper, for different values of the parameter $v$, we study the global extremes of the functions $T_v$, as well as the sets of extreme points. All functions of $T_v$ have a period of $1$, so they are investigated only on the segment $[0;1]$. This study is based on the properties of consistent and anti-consistent polynomials and series, which the first half of the work is devoted to.
Charging the conformal window

We investigate the properties of near-conformal dynamics in a sector of large charge when approaching the lower boundary of the conformal window from the chirally broken phase. To elucidate our approach we use the time-honored example of the phenomenologically relevant SU(2) color theory featuring $N_f$ Dirac fermions transforming in the fundamental representation of the gauge group. In the chirally broken phase we employ the effective pion Lagrangian featuring also a pseudo-dilaton to capture a possible smooth conformal-to-non-conformal phase transition. We charge the baryon symmetry of the Lagrangian and study its impact on the ground state and spectrum of the theory as well as the would-be conformal dimensions of the lowest large-charge operator. We moreover study the effects of and dependence on the fermion mass term.
“Muscular Fitness”—Easing the Burden of Disability for Elderly Adults

The U.S. Department of Health and Human Services (1990) has specified as a key objective the reduction of disability in the performance of activities of daily living (ADL) for persons over the age of 65 years. Many ADL involve combinations of muscular strength, muscular endurance, and flexibility, three components that together have been referred to as "muscular fitness. " The capacity of the elderly to remain functionally independent, therefore, may depend less on cardiovascular fitness, which has traditionally been the focus of health related fitness research, than on these components of muscular fitness. This review addresses the issue of muscular fitness and disability in the elderly by considering three questions: Is muscular fitness associated with ADL performance? Can muscular fitness be improved with exercise training? Do improvements in muscular fitness improve ADL performance? Answers to these questions will have important implications for future research and program implementation. Although init.
SELF-AWARENESS AND HUMAN RELATIONS POLICY IMPLEMENTATION OF MANUFACTURING COMPANIES IN PORT HARCOURT, NIGERIA

This study examined the relationship between self- awareness and human relations policy implementation of manufacturing companies in Port Harcourt . The study adopted a cross-sectional survey design. Primary data was generated through self-administered questionnaire. The population of the study was 106 employees from 16 manufacturing companies in Port Harcourt while the sample size of 84 was determined by the Taro Yamene’s formula. The reliability of the instrument was achieved by the use of the Cronbach’s Alpha coefficient with a benchmark of 0.70 as a minimum threshold. The hypotheses were tested using the Spearman’s Rank Order Correlation Coefficient with the aid of Statistical Package for Social Sciences version 23.0. The tests were carried out at a 95% confidence interval and a 0.05 level of significance. The study findings revealed that there is a significant relationship between self-awareness and human relations policy implementation of manufacturing companies in Port Harcourt. The study recommended that the managers of the manufacturing companies in Port Harcourt should ensure to create programmes and avenues that would lead to the self-awareness of the employee with respect to their value to their jobs as this would increase productivity. Keywords: Self-Awareness, Human Relations Policy Implementation, Conflict Resolution, Employee Communication, Employee Occupational Health and Safety CITATION: Enefiok, P. A. , Asawo, S. P., & Tamunomiebi, M. D. (2019). Self-awareness and human relations policy implementation of manufacturing companies in Port Harcourt, Nigeria. The Strategic Journal of Business & Change Management, 6 (4), 1607 – 1618.