Miracle-dz/UniFAR-FTUs huggingface dataset:
INVESTIGATIONS ON InSb PLASMONIC DEVICES FOR SENSOR APPLICATIONS AT TERAHERTZ FREQUENCIES

i ABSTRACT Rapid advances in the field of Plasmonics over the last two decades have led to several practical nano-photonic devices and were largely confined to devices utilizing visible light. Recently, there has been growing interest in plasmonic devices operating at terahertz (THz) frequencies. The interest arose due to its potential applications in detecting minute quantities of certain materials by employing the techniques of THz spectroscopy. Many materials show significant absorption of energy in the THz frequency range, thus enabling their detection by transmission spectroscopy. Further, the fabrication of efficient sources and detectors at THz frequencies has led to development of the technique of THz Time – Domain Spectroscopy (THz-TDS), which has been employed to characterize devices such as THz waveguides, antennas, resonators and filters. Developments in THz devices have attracted considerable attention on THz sensing in the field of biochemistry and medicine. In the effort to develop a highly promising and sensitive THz chemical sensor, this work focuses on experimentally and theoretically investigating the transmission characteristics and hence, the sensing capabilities, of a Semiconductor–Insulator–Semiconductor (SIS) THz waveguide device with stubs. The stubs function as resonant cavities and the device itself functions as a narrow band filter. The devices were made using intrinsic Indium Antimonide (InSb), which is a promising material for THz plasmonics. The resonant transmission characteristics of the device at THz frequencies are exploited for sensing applications. The transmission characteristics of the waveguide device were simulated using finite element method techniques for various sizes of waveguide width and stub length. The waveguide devices were fabricated by laser micromachining and their transmission characteristics were measured by THzTDS. The experimental results are consistent with the simulation results. The stubs of the device were loaded with Bovine Serum Albumin (BSA) protein molecules and polystyrene dissolved in toluene. Significant change in the THz transmission and absorption coefficient was observed for different concentrations of BSA and polystyrene. Consequent change in the refractive index in the stubs alters the transmitted signal intensity. Results show that, a change in concentration of material loaded in the stub even by 1mol/L, leads to measurable change in the transmission coefficient of the device. Thus, InSb plasmonic waveguide device operating at THz frequencies shows promising potential as a good material sensor. Keyword: Terahertz radiation, THzTDS, Waveguide, Plasmonics, Resonator, Sensor.
Evaluation of the effects of pain scale and analgesic administration on radiological imaging methods and hospitalization in trauma patients admitted to the emergency service

Background: Trauma, one of the major concerns in today’s world, exposes societies to important economic, social and health-related problems. Trauma is known to account for 10% of the world’s deaths.Objective: The aim of the study is to evaluate the demographic characteristics of trauma, which is common in emergency services and causes significant loss of workload and function when appropriate diagnosis and treatment methods are not applied, with radiological imaging methods, pain scale and analgesics.Materials and Methods: This prospective study included 1267 patients over the age of 18, who were admitted to the emergency department due to trauma between 1 January and 31 December 2019. The mean age of patients was 47.01 ± 14.97 year, with a male/female ratio of 1.46. 59.3% of the patients were male and 40.7% were female. Patients’ trauma types, radiology results, mortality, numerical pain scale and analgesic administration were evaluated.Results: Numerical pain scale score of trauma patients in the emergency department was 6.23 ± 2.02. Analysis of radiological imaging methods showed significance with age, numerical pain scale, thoracic and lumbar vertebrae, thoracic and abdominal injuries, types of trauma, consultation, hospitalization, analgesics administration and pain severity. Trauma types were insignificant with age and gender, but a significant relationship was found with all other parameters. Pain intensity was not correlated with gender and tetanus application but was significant with other variables. There was significance in radiological imaging methods and diagnostic types between injury types. Types of diagnosis were found to be correlated with imaging methods, orthopedic consultation, numerical pain scale and injury types. There was a significant correlation with the types of diagnosis, analgesia administration, consultation, and pain classification according to the pain rating scale. There was no correlation between age and gender according to pain intensity. However, there was a strong positive correlation with pain scale scores, consultation, hospitalization, types of trauma, administration of analgesia, and a weak correlation with radiological imaging methods.Conclusion: Early pain scale with radiological imaging and analgesic administration in trauma patients can reduce morbidity rates and shorten hospital stay.
On Estimation of Sparse Factor Loadings Using Distribution-free Approach

Sparse Factor Analysis (SFA) is often used for the analysis of high dimensional data, providing simpler pattern of factor loadings by constraining insignificant loadings to be zero. However, existing SFA approaches require the assumption of normality of data since sparse factor loadings are obtained through a likelihood function with additional constraint or penalty function. This work proposes a method for obtaining sparse factor loadings without requiring any distributional assumption. In this method, the orthogonal sparse eigenvectors were computed based on Procrustes reformulation, and thereafter, an iterative procedure was provided to find sparse factor loadings corresponding to the orthogonal sparse eigenvectors. In the end, the proposed method was compared with penalized likelihood factor analysis via nonconvex penalties using simulated data. Results show that sparse factor loadings from both methods provide simpler structure of factor loadings than the structure obtained from standard Exploratory Factor Analysis. In addition, the new method out-performs the penalized likelihood factor analysis via nonconvex penalties as it provides smaller values of MSE even when the two methods have the same level of sparsity.
DEVELOPMENT OF PHOTOVOLTAIC POWER SYSTEM FOR UNMANNED AERIAL VEHICLE (UAV)

Over the past few years, interest in solar powered UAV has rapidly expanded across commercial, industrial, as well as governmental domains. This paper presents the development of photovoltaic power system for solar powered UAV. The purpose of this study is to develop a set of methodology for photovoltaic (PV) power system design on UAV. The study also perform parametric analysis and performance data collection on PV power system. The PV power system developed in this study is for fixed wing UAV with maximum takeoff weight (MTOW) of less than 1.2kg. First, solar simulator is built in order to provide a controlled test condition for the execution of experiment. The performance of solar simulator is evaluated in term of spatial nonuniformity and temporal instability, which is in class C (≤10%) and class B (≤5%) respectively, according to the ASTM standards. Next, the irradiance data at Skudai area (1.534N and 103.659E) is collected and plotted. The irradiance curve showed that maximum irradiance occur at 1pm under clear sky condition, with 960W/. After encapsulation and soldering of PV cells, experiment to study the current-voltage (I-V) characteristics of PV cells is carried out, where maximum power generated from PV power system can be predicted from the I-V curve. The power generated should be able to maintain a steady flight of UAV. However, the first version of PV power system has failed to meet the requirement, thus another improved design of PV power system is proposed. Performance of the improved design has been analysed and calculated, where the results proved that the improved design of PV power system able to provide enough power supply for steady cruise of solar-powered UAV.
Defending Phenomenalism

We all have perceptual experiences, which, taken together, present a subjective appearance of objects and events existing in a common time and space. In Leibniz’s famous image, our experiences are like different perspective-drawings of the same landscape. They are, John Foster puts it, world-suggestive.1 Ordinarily, we attribute the world-suggestiveness of our experiences to the fact that we all inhabit the same world, encounter objects in a common space, and witness events in a common time. J.S. Mill thought that this way of thinking, while correct as far as it goes, misses out on a deeper truth. Yes, we have bodies with such-and-such physical features, embedded in such-and-such physical environments, and, yes, there’s an explanation for the regularities in our experience to be found in all that. But, at a more basic level, the world we perceive doesn’t explain the world-suggestive quality of our experiences: it is the world-suggestive quality of our experiences, or rather: it’s the tendency for experiences to occur in a world-suggestive way, given that they occur at all. In Mill’s view, physical things are (as he rather loosely puts it) ‘permanent possibilities of sensation’. 2
Acceptance Model in Designing for Extreme Users: Extreme Athletes Using Activity Trackers

‘Extreme Users’ (EU) is a design method in Human Computer Interaction, which allows user-centered design in design groups. ‘Acceptance Models’ is a theory in Information Systems, which models how users accept and use technology. We conducted a study to explore the relationships of the factors influencing Extreme Athletes in the acceptance and use of Activity Trackers (AT). The data was collected from a cross-sectional survey conducted using a self-selected convenience sample of 206. The research rendered an exploration and an examination of the factors affecting trail-running athletes. The results were analyzed using several statistical techniques including Structural Equation Analysis. Our goal was to observe to what extent the Health Information Technology Acceptance Model patterns and outlines EU use of AT. This contribution, to the best of our knowledge, is new given that the obtained model can be an initial quantitative working primary tool for designers using the EU design method.
Sociocultural Barriers to Early Diagnosis of Autism Spectrum Disorder

for parents of children with a disability, is receiving 4,5 the diagnosis. However, there has been sparsity of research that examines the diagnostic process 6 comprehensively. Available studies provide a preliminary picture of the diagnostic experience of children with ASD and their parents as they progress through the pre-diagnostic, diagnostic and post7,8 diagnostic phases. There are a number of factors that possibly exacerbate the delay in diagnosis. During the prediagnostic stages, parents report ambiguity and confusion regarding the severity of the 9 developmental delays , lack of knowledge about developmental milestones and about red 10,11 flags of autism. However, one of the major developmental concern is the language and 12 communication barrier in their children. Among the other reported factors are the limited knowledge of physicians regarding the presentation, prognosis, 13 and treatment of ASD. This often causes delay for an extended period of time, before the families of Introduction Autism Spectrum Disorder (ASD) is a universal neurodevelopmental disorder that persists over the 1 lifetime. Literature suggests that early diagnosis will result in better prognosis and improved long term 2 developmental and family outcomes. Despite its significance, most of children are diagnosed after the first three developmental years or misdiagnosed with other developmental disabilities that might 3 hinder the prognosis. It is believed that the most critically transitional point Sociocultural Barriers to Early Diagnosis of Autism Spectrum Disorder
Virtual Reality for Pain Management to Tackle the Opioid Crisis

The opioid crisis is a serious public health issue of epidemic proportions, building over the past decades. Prescription opioid abuse is one of the key sources of this issue. While pain is usually managed using pharmacological approaches, such as opioids, they produce several unwanted side effects – including respiratory depression and addiction – non-pharmacological approaches can be significant with minimal or no side effects. Recent developments in technology, such as Virtual Reality (VR), show considerable promise for main-stream adoption as one of the non-pharmacological interventions. Preventing a patient’s transition from acute to chronic pain is one instance where VR can presumably be effective. However, challenges remain due to the inherent subjectivity and lack of clear baselines in clinical intervention studies. Here, we review recent studies on the application of VR as a treatment for acute and chronic pain management to primarily understand key technical challenges faced by VR. The secondary goal of this work is to identify possible options to tackle some of the key challenges. Design considerations emerge as one critical component in improving patient engagement.
Prevention of Quadriceps Inhibition is The Key to Achieve Movement of The Knee Joint After Total Knee Replacement and Lower End of Femur Surgery

Background: Knee stiffness and weakness of quadriceps is common after surgeries around knee and even after total knee replacement. Swelling and inflammation in the early phases after surgery may contribute to stiffness and arthrogenic muscle inhibition. Aggressive physiotherapy to regain range of motion and early isometric and isotonic exercises are indicated for prevention of complications. Material and method: This were a descriptive, cross-sectional study which included hundred patients (without any limit of age range) attending the orthopaedic physical therapy outpatient department of Positron Hospital were selected for this study. The subjects were assessed for quadriceps inhibition and knee range of motion. The patients were assessed one week, six weeks and 12 weeks post surgery. The patients underwent supervised physiotherapy till 6 weeks and were put on home exercise program for next 6 weeks. Results: The quadriceps inhibition in initial phase was about 25% and quadriceps inhibition in recovery phase remained only 5%. There was zero flexion deficit in 30%, 59% and 76% of patients in first week, sixth week and twelfth week respectively. Mean of flexion deficit in hundred patients were 15% in first week, 6.5% flexion deficit remained in sixth week and only 2.9%flexion deficit left in twelfth week. Conclusion: Quadriceps inhibition was seen in 25% patients. Quadriceps inhibition was not associated with gender or age. There was moderate to strong correlation between flexion deficit and quadriceps inhibition
Are the high-risk plaques of no-reflow phenomenon equivalent to vulnerable plaques?

No-reflow phenomenon during Percutaneous Coronary Intervention (PCI) in Acute Coronary Syndrome (ACS) is associated with some coronary complications such as arrhythmias, heart failure, ventricular remodeling or cardiac death. Therefore, it is very important to predict this phenomenon. The vulnerable plaque, which is almost equivalent to Thin-Cap Fibroatheroma (TCFA), is extrapolated as a predictive factor because the no-reflow phenomenon is caused by the disruption of fibroatheroma (FA). However, these two phenomena have different mechanism of occurrence. In the ACS, it is spontaneous rupture of TCFA. On the other hand, in the no-reflow phenomenon, it is the disruption of fibrous cap by mechanical stimulation such as balloon dilation, subsequent outflow of fragile necrotic core from FA and multiple microvascular obstruction. There are following three major modalities to predict this phenomenon. Intravascular ultrasound can detect whole FA other than calcification but has low resolution to detect fibrous cap. Optical coherence tomography has enough resolution to detect FA but low penetration power to detect whole FA. Cardiac computed tomography angiography can detect whole FA including calcification but has quite low resolution. Therefore, it seems to be necessary to be reconsider whether the theory, that vulnerable plaque is extrapolated as the high-risk plaques of no-reflow phenomenon, is appropriate and which modality is suitable.
New evidence for upper Permian crustal growth below Eifel, Germany, from mafic granulite xenoliths

Abstract. Granulite xenoliths from the Quaternary West Eifel Volcanic Field in Germany record evidence of magmatism in the lower crust at the end of the Permian. The xenoliths sampled two distinct bodies: an older intrusion (ca. 264 Myr old) that contains clinopyroxene with flat, chondrite-normalised rare earth element (REE) profiles and a younger (ca. 253 Myr old) intrusion that crystallised middle-REE-rich clinopyroxene. The younger body is also distinguished based on the negative Sr, Zr and Ti anomalies in primitive mantle-normalised multi-element plots. REE-in-plagioclase–clinopyroxene thermometry records the magmatic temperature of the xenoliths (1100–1300 ∘C), whereas Mg-in-plagioclase and Zr-in-titanite thermometry preserve an equilibration temperature of ca. 800 ∘C. These temperatures, together with a model of the mineral assemblages predicted from the composition of one of the xenoliths, define the pressure of crystallisation as ∼1 GPa. The xenoliths also preserve a long history of reheating events whose age ranges from 220 to 6 Myr. The last of these events presumably led to breakdown of garnet; formation of symplectites of orthopyroxene, plagioclase and hercynite; and redistribution of heavy rare earth elements into clinopyroxene. The data from the West Eifel granulite xenoliths, when combined with the existing data from granulites sampled in the East Eifel, indicate that the lower crust has a long a complex history stretching from at least 1.6 Ga with intrusive events at ca. 410 and 260 Ma and reheating from the Triassic to late Miocene.
Investigating the Status of the Components of Intra Organizational Factors

Internal factors can be both considered as an opportunity and as a constraint for the talent management process in organizations. The purpose of this article is to investigate the status of the components of intra and their relationship with strategic talent management by structural equation modeling approach. This research is descriptive of correlation type in terms of nature, and applied in terms of purpose, and survey in terms of method. The statistical population of the research i Baluchestan province that 194 people were selected using stratified sampling method. In order to collect data, researcher-made questionnaires based on the study of literature and artic validity of the questionnaires were confirmed based on the opinion of the subject experts. Cronbach's alpha coefficient of the variables was also estimated to be higher than 0.7 which indicates the internal coordinat and the confirmation of reliability. In order to analyze the data, one software and structural equations modeling using PLS software. The results showed that the components of organizational structure, leadership style, organizational culture, individual abilities and motivators are at the desired level (higher than the measured average limit). There is a positive and significant relationship between the dimensions of intra-organizational factors and stra
VALIDATING Pathways to Student Success and Retention

Retention interventions focus on support programs, measures of success, and demographics. This study offers an alternate student-based narrative relative to student college preparation and self-diagnosed functionalities and compatibilities. We examine metrics that portray economic and environmental settings and social frameworks – as well as interactions, behaviors, and responses – that comprise first-year students’ experiences for the spectrum of engagement behaviors. We analyze the return on investment for student retention efforts at a four-year public university by applying a predictive and proactive retention model. We also discuss ensuring accessibility to services, diagnosing student intervention, and considering subsequent engagement behaviors.
Eosinophilic granulomatosis with polyangiitis and oral lesions: an atypical first sign of the disease. A literature review

Aim Eosinophilic granulomatosis with polyangiitis (EGPA, also known as Churg-Strauss Syndrome) belongs to the group of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitides (AAV) together with microscopic polyangiitis (MPA) and granulomatosis with polyangiitis (GPA, formerly known as Wegener’s granulomatosis). Ear, nose and throat (ENT) manifestations in AAV are relatively common and in some cases the first sign of the disease; in contrast, oral lesions are less frequent and described in only a very limited number of case reports of EGPA. Although not curable, AAV can be successfully managed with immunosuppressive drugs and other novel agents, highlighting the importance of early diagnosis. Methods Herein, we reviewed the results of a literature search for descriptions of oral lesions in EGPA. A literature review was conducted, consisting of a literature search, pragmatic searches of web sources and snowballing. Results The few cases reported document that oral lesions can occasionally be the first sign, albeit atypical, of the disease. Conclusions Healthcare professionals who examine the oral cavity, and especially otolaryngologists and dentists, should always consider EGPA in the differential diagnosis of oral lesions to avoid delayed diagnosis and, most importantly, the potentially fatal consequences of the vasculitic stage of the disorder.
Survival modelling of teenage childbirth among Nigerian women

Childbearing is an essential event in woman’s life when she neglects her education and career for motherhood. The main cause of population growth in Nigeria is teenage childbearing as reported by many researchers with no significant intervention to reduce this menace. This work is designed to compare the results of Cox, Gompertz and Weibull models with a view to determine the model that best fits the data. To evaluate the effect of some risk factors on the hazard of teenage childbirth among Nigerian women, data obtained from National Demographic Health Survey 2013 was analysed. Results of the analysis showed that having a child at teen age depends on geopolitical zone, location, educational level, circumcision, household wealth index, religion belief, use of contraceptive, whether had a terminated pregnancy, forced sexual acts, awareness of HIV/AIDS, STI and the age of first sexual acts. Akaike Information Criterion (AIC) was employed to evaluate performances of the three models. Weibull regression model has the minimum AIC value compared to both Gompertz and Cox regression models. This shows that Weibull regression model provides best fit to the data. Keywords: Cox proportional hazard model, risk factors, survival time, teenage childbirth
Review on Laser Sources based on Third Fifth Semiconductor Hetrostructures

In this paper we are working on a brief literature review of AlGaAs/GaAs single quantum well laser for optical communication systems. Under modeling and mathematical simulation, we have describe anti-guiding factor, gain compression, differential gain, peak material gain as a function of carrier density, and convolution optical gain of AlGaAs/GaAs SQW laser as function of wavelength and photonic energy of different authors. The results obtained ensure the usefulness of the AlGaAs/GaAs SQW SCH laser in communication systems based on optical fiber. Keywords— InGaAs, InGaAsP, AlGaAs, GaAs, SLD.