Miracle-dz/UniFAR-FTUs huggingface dataset:
CORRELATION OF BODY MEASUREMENTS AND EXERCISE WITH BLOOD PRESSURE AMONG MEDICAL STUDENTS IN LAHORE

Objective: To find out correlation of body measurements and exercise with blood pressure among medical students in Lahore, Pakistan. Study Design: Correlational study. Place and Duration of Study: Akhtar Saeed Medical and Dental College, Lahore, from May to Jul 2018. Methodology: A sample of 332 students was recruited through simple random sampling technique. Resting blood pressure in sitting position along with body mass index of respondents were taken after informed consent. Results: Mean age of respondents was 21.06 ± 1.53 years. Mean sitting systolic blood pressure was 117.5 ± 8.24mm Hg, Mean sitting diastolic blood pressure was 77.9 ± 7.05mm Hg. Significant association was found between weight and both Systolic (r=1, p≤0.00) and Diastolic (r=0.01, p=0.05) blood pressure. Height was negatively correlated with systolic blood pressure (r=-0.004) and diastolic blood pressure (r=-0.07). Body mass index was also significantly associated with systolic blood pressure (r=1, p≤0.00) and diastolic blood pressures (r=0.14, p=0.00). Significant association is found between systolic blood pressure and exercise with number of days (r=-0.15, p=0.05) and diastolic blood pressure (r=-0.11, p=0.00) and duration of exercise with systolic blood pressure (r=-0.13, p=0.01) and diastolic blood pressure (r=-0.16, p=0.04). Conclusion: Weight and Body mass index are positively correlated with systolic and diastolic blood pressure.Keywords: , , , .
Detecting regional changes in myocardial contraction patterns using MRI

Measuring changes in cardiac motion patterns can assist in diagnosing the onset of arrhythmia and ischaemia and in the follow-up of treatment. This work presents a methodology for measuring such motion changes from MR images. Non-rigid registration is used to track cardiac motion in a sequence of 3D tagged MR images. We use a cylindrical coordinate system to subdivide the myocardium into smaller anatomically meaningful regions and to express motion derived measurements such as displacement and strain for each myocardial region during the cardiac cycle. In the first experiment we have evaluated the proposed methods using synthetic image sequences where the ground truth was available. These images were generated using a cardiac motion simulator for tagged MRI. Normal and abnormal motion fields were produced by modifying parameters in a small region of the myocardium. In the second experiment we have acquired two separate tagged MR image sequences from five healthy volunteers. Both acquisitions have been carried out without moving the volunteer inside the scanner, thus avoiding potential misregistration errors due to subject motion between scans. In addition, one of volunteers was subjected to stress during one of the scans. In the final experiment we acquired tagged MR images from a patient with super-ventricular tachyarrhythmia, before and after radio frequency ablation. The image acquisition and catheter intervention were performed with a combined X-ray and MRI system. Detection results were correct on synthetic data and no region was incorrectly classified as having significant changes in the repetition studies. Significant changes in motion pattern were measured in the stress and ablation studies. Furthermore, results seem to corroborate that the ablation regularised cardiac contraction.
Fast calculation of linear available transfer capability

This paper presents a detailed formulation and implementation of a fast program for power system available transfer capability (ATC) calculations. The formulation is based on the linear incremental power flow to account for the line flow thermal loading effects. An efficient linear ATC implementation enhances speed in processing a large number of contingencies to determine ATC for each specified transfer. Test and performance results for practical power system models are presented.
A 19-pole cellular bandpass filter using 75-mm-diameter high-temperature superconducting thin films

A 19-pole bandpass filter designed for the 900-MHz cellular communication band with 25-MHz bandwidth is reported using a compact forward-coupled approach in microstrip configuration. The filter was fabricated using 75-mm-diameter, double-side-coated YBa/sub 2/Cu/sub 3/O/sub 7/ (YBCO) high-temperature superconducting (HTS) thin films grown by a single-source MOCVD technique on a LaAlO/sub 3/ substrate. Measurement of the filter at 77 K showed a dissipation loss of 0.5 dB, corresponding to an average unloaded Q-factor of 10000 in 75-mm-diameter microstrip resonators. A minimum return loss of 15 dB was obtained from measurements at 77 K. >
A Fabry-Perot scanning receiver for microwave signal processing

A scanning receiver with a bandwidth of 40 GHz has been demonstrated. The system uses temporal scanning of a fiber Fabry-Perot etalon to analyze the microwave sidebands on an optical carrier. A proof-of-concept system has been measured, and a conversion efficiency of 280 mV/mW has been obtained at 10 GHz, giving an unamplified RF sensitivity of -2 dBm. The RF resolution is 90 MHz within the 40-GHz scan range. A theoretical analysis of the system is presented and improvements and limitations are discussed. While the performance of the initial all-optical system is not comparable to high-performance microwave receivers, it is believed that the potential for system improvements exists.
MICCAI Brain Tumor Segmentation (BraTS) 2020 Benchmark: "Prediction of Survival and Pseudoprogression"

Provide a summary of the challenge purpose. This should include a general introduction in the topic from both a biomedical as well as from a technical point of view and clearly state the envisioned technical and/or biomedical impact of the challenge. One of the most challenging clinical problems in management of gliomas is distinguishing pseudo-progression (PsP), a benign side-effect of the aggressive chemoradiation therapy, from tumor recurrence. The current standard-of-care for evaluating treatment response in brain tumors involves follow-up imaging examinations using T1w, T2w and T2-FLAIR MRI scans. Unfortunately, guidelines set by the clinical Response Assessment in Neuro-Oncology (RANO) criteria [3] are based solely on bi-directional diametric measurements of enhancement observed on T1w, T2w/FLAIR scans and sub-optimal often leading to unnecessary surgical interventions for disease confirmation in patients with a benign condition. In this task of the BraTS 2020 challenge, we will release a well-curated cohort of multi-institutional retrospective studies with the expected goal that the participating teams will develop radiomics and machine learning solutions to be able to reliably distinguish benign PsP from tumor recurrence using routinely acquired standard-of-care MRI scans. [3] P.Y. Wen, D.R. Macdonald, D.A. Reardon, et al., "Updated response assessment criteria for high-grade gliomas: response assessment in neuro-oncology working group. " J Clin Oncol. 28:1963-1972, 2010. Publication link: https://ascopubs.org/doi/full/10.1200/JCO.2009. 26.3541
Hazard analysis and monitoring for debris flow based on intelligent fuzzy detection

This study aims to develop the fuzzy risk assessment model of the debris flow to verify the accuracy of risk assessment in order to help related organizations reduce losses caused by landslides. In this study, actual cases of landslides that occurred are utilized as the database. The established models help us assess the occurrence of debris flows using computed indicators, and to verify the model errors. In addition, comparisons are made between the models to determine the best one to use in practical applications. The results prove that the risk assessment model systems are quite suitable for debris flow risk assessment. The reproduction consequences of highlight point discovery are shown in highlight guide coordinating toward discover steady and coordinating component focuses and effectively identified utilizing these two systems, by examining the variety in the distinguished highlights and the element coordinating.
Optimal Tuning of Resonant- and Repetitive-Based Controller for Single-Phase Buck–Boost Inverter With Unfolding Circuit

A Buck–boost inverter with unfolding circuit in a grid-connected mode has numerous advantages but suffers from nonlinear nature and zero-crossing spike, which are difficult to eliminate; it, therefore, requires an accurate control approach. This article presents an optimal tuning approach of the digital control system based on a proportional resonant and repetitive controller along with proper pulsewidth modulation block. Optimal performance consists in the minimal steady-state error and fast transient response keeping the system in the stable domain in a wide range of operation. It is achieved by a derived set of coefficients of the controller for different operation points. To tune the system, an appropriate transfer function of the plant is developed in the z-domain, taking into account nonlinearity of the system and digital delay. In advance, we present a detailed study of various discretization methods for best coincidence with the simulation and experimental results. Simulation and experimental results confirmed theoretical statements. The proposed approach allows double improvement of the total harmonic distortion of the grid current in most of the operating points.
Quality improvement practices and the effect on manufacturing firm performance: Evidence from Mexico and the USA

A comparison of organizations in Mexico and the USA demonstrates that, for these two countries, different quality improvement approaches are related to actual quality and financial performance. For 345 firms multiple quality improvement variables are correlated with seven quality measures, four financial measures, and one operating performance measure. Results suggest that in both countries an increase in employee involvement leads to improved quality-a decrease in internal failure costs, the percentage of items defective, and costs of quality. In Mexico an increase in employee knowledge about quality improvement and customer focus also leads to improved quality (as measured above). In the USA, but not in Mexico, the quality improvement approach relates to financial performance. An increase in senior executive leadership and an increased emphasis upon both design and conformance in the USA leads to an improved return on assets and increased net profit. In each country similar distributions from respondents regarding individual items that improve quality can be found, yet statistical modelling demonstrates country-specific models best explain quality improvement/performance relationships. This suggests culture-specific quality improvement models are necessary to better understand how quality may be improved globally.
Formulation and Evaluation of Press Coated Tablets for Pulsatile Drug Delivery

The aim of present investigation is to develop press coated tablet, a dry-coated device for pulsatile drug delivery of a pain relieving drug using different hydrophilic and hydrophobic polymers. It is intended to be used mainly in the therapy of pain symptoms which depend on circadian rhythms. The drug delivery system will be designed to deliver the drug at such a time when it could be most needful to patient of rheumatoid arthritis and fibromyalgia [1]. It will be aimed to have a lag time of four hours so that, the system is taken at the bed time and expected to release the drug after a period of 4 hours at mid night time when such pain are at peak and disturbs sleep. Such time-controlled pulsatile drug delivery can be achieved mainly with cores containing Tapentadol hydrochloride as active agent. Core formulations, characterized by different release rates and mechanisms, will be coated by compression with an outer shell of different polymeric barrier layers of hydrophobic and hydrophilic polymers. The coatings prevent drug release from the core until the polymeric shell is completely eroded or swollen. The release profile of press coated tablet is supposed to exhibit a lag time followed by burst release, in which outer shell ruptured into two halves. The dissolution profiles of uncoated cores and press-coated devices will be compared. Various evaluation tests will be carried out to ensure the best quality formulation. The factors influencing on lag time such as type of polymeric shell and outer coating weight will be also investigated. The surface morphology of the tablet was examined by a scanning electron microscopy [2]. Differential scanning calorimeter and Fourier transformed infrared spectroscopy study showed compatibility between drug and coating material.
A new peak power tracker for cost-effective photovoltaic power system

Solar arrays are the most expensive components in photovoltaic power systems. Thus solar arrays should be operated at their maximum power point in order to reduce the overall cost of the power system. This paper presents a new peak power tracker (PPT) which forces a PV power system to extract the maximum power from solar arrays, regardless of the change of load demand, insolation and temperature. The benefits of the PPT are simplicity, cost-effectiveness and flexibility.
A fully recursive approach to the computation of higher order sensitivities of linear active circuits

This paper presents a new recursive method to compute the higher order sensitivities of any node voltage, as well as of the circuit performances (gain, input/output impedance, or reflection coefficients) with respect to all circuit parameters. The starting point is the adjoint system approach and the expressions obtained for the first-order sensitivities when using nodal analysis. Instead of further differentiating them, the images of the higher order derivatives are generated by recursion up to any given order. The procedure is illustrated with three examples.
Gaussian process modeling for engineered surfaces with applications to Si wafer production

When producing engineered surfaces, the stochastic portion of the processing greatly affects the overall output quality. We propose a Gaussian process model that accounts for the impact of control variables on the stochastic elements of the produced surfaces. An optimization algorithm is outlined to find the maximum likelihood estimates of the model parameters. A case study involving the thickness surfaces of semiconductor wafers is examined that demonstrates the need for the proposed approach. Copyright © 2013 John Wiley & Sons Ltd
Eviota marteynae, a new dwarfgoby from the Maldive Islands (Teleostei: Gobiidae).

A new species of dwarfgoby, Eviota marteynae n. sp. , is described from Kaafa-haa, Laamu Atoll, Maldive Islands. The new species is characterized by having a cephalic sensory-canal pore system lacking only the IT pore (Pattern 2), a dorsal/anal fin-ray formula of 8/8, one or more branched pectoral-fin rays, the fifth pelvic-fin ray present, a deep body (>23% SL), a deep caudal peduncle (>14 % SL), a rounded internal dark spot over the preural centrum, 6 postanal bars, the pectoral-fin base with scattered melanophores, and the distal two-thirds of the first dorsal fin yellow with a black margin.
Numerical prediction of cooling losses in a high-pressure gas turbine airfoil

Numerical investigations of the flow past a film-cooled nozzle guide vane cascade were conducted to determine the influence of coolant ejection on profile loss. The film cooling on the suction surface as well as the trailing edge bleeding was simulated at engine representative main flow Reynolds and Mach numbers, varying the coolant ejection rate. Experiments carried out in a high-speed wind tunnel provided a comprehensive test case to verify the capability of the numerical models to correctly reproduce the flow phenomena taking place in the vane passage. Results show that the main features of the flow, such as aerodynamic loading, flow separation, and loss distribution in the wake of the airfoil can be quite accurately predicted without excessive computational effort using a standard RANS SST model, which proved to be a reliable and more adequate alternative to the widely used models based on simple control volume analysis.
Linear programming design of two-channel perfect-reconstruction biorthogonal filter banks-linear phase and low-delay

This paper discusses the use of a linear programming technique for the design of two-channel perfect reconstruction (PR) biorthogonal FIR filter banks with linear phase or low-delay. Both the objective function and the design constraints for the PR filter banks are formulated as a set of linear equations and inequalities. The method is simple and good stop-band attenuation can be obtained. Two design examples are given to illustrate the effectiveness of the proposed method.
A computationally efficient method for modeling circuits housed in non-rectangular packages

Mathematical difficulties make a solution for parasitic impedances in packaged microstrip circuits problematic. Because of this, most present simulators model rectangular packages. In this paper, a method developed for rectangular packages is generalized to model packages with other cross sections. Reasonable accuracy is shown for a computationally efficient simulation of circuits housed in a package with trapezoidal cross section. <<ETX>>
Speech-enabled windows application using Microsoft SAPI

Summary PCs are no longer a playground for a few computer freaks. They have changed from "big pocket calculators" to be used as everyday tools with seemingly unlimited options. In modern countries using a computer has become a basic requirement like reading and writing. The importance of digital information has already reached such an enormous level that many start-up companies and even corporations provide information largely digital. Also politicians around the world try to find their ways to a paperless e-Government. Obviously this is a positive progress because it means up to date information at any time and for everybody. But is this really accessible to everybody? People with disability such as visual impaired are often forgotten though the number of the elderly for who it's very hard to identify the screen text is already high and increasing continuously during the next decades. So it would be a real relief to have the option to use ears to listen to the contents and use voices to navigate and control the computer systems. Even if sometime it is for normal people, it would be more comfortable to work with speech enabled applications. Microsoft has designed an interface called SAPI (Speech Application Programming Interface) which supports dynamic speech input and output, and integrated it in its current operating system. With the API it is possible to develop speech enabled applications without caring about the details of synthesis and recognition. In this paper, a windows application is presented to demonstrate the speech-enabled application using Microsoft SAPI.
A Numerical Study of the Aeroacoustic Interaction of a Cavity With a Confined Flow: Effect of Edge Geometry in Corrugated Pipes

In the present work a numerical study is carried out to investigate the aeroacoustic interaction of a 2D cavity with a confined flow. Incompressible flow simulations are performed with imposed incoming velocity perturbations. Equivalent time averaged acoustic source power is calculated through enthalpy differences using the theory of Vortex Sound. Information required for the estimation of acoustic source strength in high Reynolds number flows are acquired from relatively low Reynolds number, Re = O (103 ) simulations. This is done by an extrapolation method in which the effect of friction is estimated by considering a reference flow in a straight channel. The proposed methodology is employed to explain the whistling phenomenon observed in corrugated pipes, which can be considered as rows of acoustically coupled cavities. The method successfully predicts the Strouhal number ranges where acoustic energy production and absorption occur. The method can also explain the effect of edge geometry on sound production, which is known to be important in corrugated pipes. In accordance with the earlier experimental study, round upstream - sharp downstream edge case leads to higher sound production levels than sharp upstream - round downstream case.Copyright © 2010 by ASME
Limitations of Soil Amplification Provisions in the 2002 Indian Seismic Code

The design response spectra of the 2002 Indian seismic code are compared with analytical and empirical results, and design spectra of other major national codes. Amplification at 37 sites in India is studied analytically using 1-D wave propagation. Next, Generation Ground-Motion Attenuation (NGA) models are used to obtain the spectra for corresponding site classes using different magnitude-distance (M-R) pairs. Average amplification factors for the four selected NGA models are compared with the design codes and analytical results and it is observed that there are considerable differences among them. We consider the provisions for local soil amplification in the current Indian seismic code to be inadequate and in need of improvement.
Improving SoC Power Delivery With Fully Integrated Switched-Capacitor Voltage Regulators

Traditional power delivery solutions f or system-on-chip (SoC) applications rely on off-chip voltage regulators. The off-chip power delivery solution is becoming a bottleneck for SoCs, due to 1) coarse voltage domain management, 2) increased cost as well as complexity of the power delivery network, and 3) high I2R loss as supply voltages scale down with the fabrication technology. One promising solution is to integrate the voltage regulators in the SoC. While fully integrated voltage regulators (FIVRs) could resolve these problems, their performance is limited by low efficiency and high chip area overhead, especially if the conversion ratio of the converter is high (
Detecting Android Malware and Classifying Its Families in Large-scale Datasets

To relieve the burden of security analysts, Android malware detection and its family classification need to be automated. There are many previous works focusing on using machine (or deep) learning technology to tackle these two important issues, but as the number of mobile applications has increased in recent years, developing a scalable and precise solution is a new challenge that needs to be addressed in the security field. Accordingly, in this article, we propose a novel approach that not only enhances the performance of both Android malware and its family classification, but also reduces the running time of the analysis process. Using large-scale datasets obtained from different sources, we demonstrate that our method is able to output a high F-measure of 99.71% with a low FPR of 0.37%. Meanwhile, the computation time for processing a 300K dataset is reduced to nearly 3.3 hours. In addition, in classification evaluation, we demonstrate that the F-measure, precision, and recall are 97.5%, 96.55%, 98.64%, respectively, when classifying 28 malware families. Finally, we compare our method with previous studies in both detection and classification evaluation. We observe that our method produces better performance in terms of its effectiveness and efficiency.
Analysis and implementation of a soft switching converter with high-voltage conversion ratio

The zero voltage switching (ZVS) boost converter with high-voltage gain is presented to overcome the limit of conventional boost converter with narrow turn-off period. Compared with the conventional boost converter, the adopted converter has wide turn-off period so that the higher output voltage can be achieved. The boost type of active clamp is used to limit the voltage stress of power switch. The resonance based on the output capacitance of power switch and resonant inductance will make the power switches to turn on at ZVS. The circuit configuration, principle operation, system analysis and design consideration of the adopted converter are presented. Finally, experiments conducted on a laboratory prototype rated at 240 W are presented to verify the effectiveness of the adopted converter.