Miracle-dz/UniFAR-FTUs huggingface dataset:
Power Analysis Using R

Thus, a rational approach to hypothesis testing will seek to reject a hypothesis if it is false and accept a hypothesis when it is true. The two types of error are rejecting the null hypothesis when it is true (Type I) and accepting the null hypothesis when it is false (Type II). In the Neyman-Pearson theory, it is usual to fix the Type I error probability (α) at some constant (often at 0.05, but not necessarily), and then choose a test which minimises the Type II error probability (β), conditional on α. The (null) hypothesis is then either rejected when the associated p-value for the test is less than α, or otherwise accepted.
Vitamin D Status in Term Newborns and Their Mothers

The aim of this study is: 1) To evaluate vitamin D serum levels of fullterm newborns and its association with the maternal levels; 2) To evaluate the diet and the intake of multivitamin supplements of women; 3) To analyze seasonal dependence in serum levels of mother-baby pairs. The prospective study was carried out between July 2018 and February 2020 at the University Hospital of Obstetrics and Gynecology “Maichin dom”, Sofia. The study included 45 full-term newborns and their mothers. Data collected included maternal health, nutrition, vitamin intake, and anthropometric data of the newborns. The laboratory tests performed: maternal serum 25(OH)D levels taken in the third trimester of pregnancy and umbilical cord levels of 25(OH)D. The results show that the mean birth weight was 3234.22 ± 370.29 g and the mean gestational age was 38.13±0.89 weeks. A 25(OH)D sufficiency was found in 58% of mothers and 67% of newborns. A strong positive correlation between maternal and neonatal 25(OH)D concentrations (p = 0.007) was found. A relationship between maternal diet, vitamin supplementation and serum vitamin D levels was observed. The level of 25(OH)D in the umbilical cord in winter is lower than in summer (p = 0.002). Due to the essential role of vitamin D for the normal development of the fetus and the infant, a testing for serum levels of vitamin D during pregnancy is recommended.
SPATIO-TEMPORAL MODELS FOR SOME DATA SETS IN CONTINUOUS SPACE AND DISCRETE TIME

Citation: Demel, S. S. , & Du, J. (2015). SPATIO-TEMPORAL MODELS FOR SOME DATA SETS IN CONTINUOUS SPACE AND DISCRETE TIME. Statistica Sinica, 25(1), 81-98. doi:10.5705/ss.2013. 223w
Weak Convergence of a Product Integral Dependence Measure

Some properties of a product integral representation of multivariate survival functions are discussed. It provides a decomposition of a survival function in terms of signed interaction measures. It is shown that a censored data sample analogue of this decomposition is asymptotically Gaussian. Under the null hypothesis of mutual independence of the failure times the limiting process is given by an array of independent Brownian motions with variance functions which can be easily estimated from censored data. The result generalizes to censored data Deheuvels' (1981) decomposition of empirical copula functions into array of asymptotically independent Gaussian processes with distribution-free covariances. The one-to-one correspon- dence of this decomposition with scores of censored data rank statistics for mutual independence is also discussed and a new class of independence tests for multivariate data proposed.
Functionalization of graphene nanoribbons

Graphene nanoribbon (GNR) is a recently discovered carbon allotrope, which can be described as a stripe of graphene. Pseudo-one-dimensionality exerts additional confinement on the electrons resulting in the formation of a band gap relevant for electronic devices. Due to distinct physical and chemical properties it is a promising material for several applications. To expand the range of potential applications and to improve processability, chemical functionalization of GNRs is required. This review aims to provide a concise and systematic coverage of recent work in chemical functionalization of GNRs. We will focus on longitudinal carbon nanotube unzipping, functionalization with aryl diazonium salts, non-covalent functionalization, bottom-up synthesis and one pot carbon nanotube unzipping with in situ edge functionalization.
Aktivitas antibiofilm ekstrak etanol kulit bawang merah (Allium cepa L.) dalam menghambat pembentukan biofilm Staphylococcus aureus ATCC 25923

Introduction : Many dental and medical problems are caused by bacterial biofilms in the oral cavity. One of the bacteria that form biofilm is Staphylococcus aureus. This bacterium is a type of Gram-positive bacteria which is an opportunistic pathogen in the oral cavity and has a complex biofilm formation mechanism. Shallot peel contains phytochemical compounds such as flavonoids, saponins, phenols, tannins, alkaloids
Calculation of the Absorption Cross-Section of a Cylindrical Gravitational Wave Antenna

Eigenfunctions and eigenvalues are calculated in terms of power series in R/L for free axisymmetric longitudinal oscillations of uniform circular cylinders of radius R and length L. These are used to compute the cross section for absorption of gravitational waves. Our results are compared with the Pochhamer-Chree solution and other approximate solutions. (AIP)
EFFECTIVENESS OF PROBIOTIC AND DIGESTIVE ENZYMES IN FERMENTED DIET ON GROWTH, FAT AND CHOLESTEROL CONTENTS OF BROILER

ABSTRACTThe present study aims to determine the effect of fermented diet containing probiotics and digestive enzymes with different feed levels on growth, fat and cholesterol contents of broiler chickens. Evaluating the effectiveness of probiotics (P) and digestive enzymes (DE) in fermented diet on broiler was observed by 4 treatments: P0=control (fermented diet without P and ED) EP), P1(fermented diet contained 0.5% P only)), P2 (fermented diet contained 0.5% DE only), P3 (fermented diet contained 0.5% P and 1% DE) and P4 (fermented diet contained 1% P and 0.5% DE). A hundred DOCs of broiler chickens strain CP 707 were used (unsex) and it designed by a completely randomized design with 5 treatments, 4 replications and each replication consisted of 5 DOCs. The data obtained were analyzed by means of variance and Duncan's multiple range test. The results of present study showed that broiler fed on fermented diet containing P and/or ED with different levels had a significant effect (P0.05) on final body weight, weight gain, carcass weight, fat content on thigh muscle. Broiler fed on fermented diet contained 0.5% DE only (P2) resulted in better growth and weight gain than other treatments. However, fermented diet contained probiotics and digestive enzymes had no effect on fat and cholesterol contents in breast muscle. It was concluded that the addition of digestive enzymes in fermented diet formulated by local raw materials was very effective than probiotics in increasing body weight gain, carcass weight and prevented the increase in fat and cholesterol contents both in breast and thight muscles of broiler chicken.
Accuracy of a Standalone Atrial Fibrillation Detection Algorithm Added to a Popular Wristband and Smartwatch: Prospective Diagnostic Accuracy Study

Background Silent paroxysmal atrial fibrillation (AF) may be difficult to diagnose, and AF burden is hard to establish. In contrast to conventional diagnostic devices, photoplethysmography (PPG)–driven smartwatches or wristbands allow for long-term continuous heart rhythm assessment. However, most smartwatches lack an integrated PPG-AF algorithm. Adding a standalone PPG-AF algorithm to these wrist devices might open new possibilities for AF screening and burden assessment. Objective The aim of this study was to assess the accuracy of a well-known standalone PPG-AF detection algorithm added to a popular wristband and smartwatch, with regard to discriminating AF and sinus rhythm, in a group of patients with AF before and after cardioversion (CV). Methods Consecutive consenting patients with AF admitted for CV in a large academic hospital in Amsterdam, the Netherlands, were asked to wear a Biostrap wristband or Fitbit Ionic smartwatch with Fibricheck algorithm add-on surrounding the procedure. A set of 1-min PPG measurements and 12-lead reference electrocardiograms was obtained before and after CV. Rhythm assessment by the PPG device-software combination was compared with the 12-lead electrocardiogram. Results A total of 78 patients were included in the Biostrap-Fibricheck cohort (156 measurement sets) and 73 patients in the Fitbit-Fibricheck cohort (143 measurement sets). Of the measurement sets, 19/156 (12%) and 7/143 (5%), respectively, were not classifiable by the PPG algorithm due to bad quality. The diagnostic performance in terms of sensitivity, specificity, positive predictive value, negative predictive value, and accuracy was 98%, 96%, 96%, 99%, 97%, and 97%, 100%, 100%, 97%, and 99%, respectively, at an AF prevalence of ~50%. Conclusions This study demonstrates that the addition of a well-known standalone PPG-AF detection algorithm to a popular PPG smartwatch and wristband without integrated algorithm yields a high accuracy for the detection of AF, with an acceptable unclassifiable rate, in a semicontrolled environment.
Fuzzy controller of self-tuning proportionality factor based on PI arithmetic

Because of shortcomings of fuzzy controller,a fuzzy controller of self-tuning proportionality factor based on PI arithmetic is presented.PI arithmetic is utilized in fuzzy controller to adjust the proportionality factor of fuzzy controller automatically.The simulation on a system of boiler drum water level control indicates that the fuzzy controller of self-tuning proportionality factor based on PI arithmetic can improve the performance of fuzzy control system and can control the fallacious water level.
Multiparameter inversion in anisotropic elastic media

Summary In this paper, we formalize the linearized inverse scattering problem for a general anisotropic, elastic medium and describe two approaches to the construction of a stable inversion procedure. The first uses generalized Radon inversion and requires extra information limiting the independent variation of material parameters. The second uses a stationary phase approximation and requires extra information to the effect that the medium is everywhere locally stratified with known dip. The point of common departure is the single-scattering or Born approximation to the scattered field in perfectly elastic media. The formalism is simple to outline: the medium being modelled (or reconstructed) is thought of as a perturbation of a simpler, known, background medium. We are to find the unknown medium perturbation, given the scattered field, which is defined as the difference between the actual (total) field and the background field that would have been present if the actual medium were replaced by the background medium. If the background medium is sufficiently smooth, the background field can be well approximated within the framework of ray theory for elastic waves. If the background medium is sufficiently close to the actual medium, the scattered field can be well approximated by an integral involving the background field and linear in the medium perturbation (the Born approximation). Within this regime we show how to find which combinations of parameters can be determined for a given arrangement of sources and receivers (acquisition geometry). Many expressions simplify when sources and receivers coincide (zero-offset), but then only one parameter may be reconstructed. At several points we use ‘generalized’ linear inversion, implemented through a singular-value decomposition, which enables us to find and rank the best-determined linear combinations of the unknown parameters. Our first method of inversion depends upon the inversion formula for the generalized Radon transform (GRT) to leading order asymptotically for high spatial frequencies. Our second method benefits from the use of further information to the effect that the medium has a locally stratified microstructure within which the medium properties vary rapidly ∈ the direction normal to the local layering, and, assuming that the orientation of the layering can be estimated separately, the scattering problem becomes locally 1-D and the inversion procedure reduces to an amplitude versus (scattering) angle (AVA) analysis.
A Decomposition of Rings Generated by Faithful Cyclic Modules

Abstract A ring R is said to be generated by faithful right cyclics (right finitely pseudo-Frobenius), denoted by GFC (FPF), if every faithful cyclic (finitely generated) right R-module generates the category of right R-modules. The class of right GFC rings includes right FPF rings, commutative rings (thus every ring has a GFC subring - its center), strongly regular rings, and continuous regular rings of bounded index. Our main results are: (1) a decomposition of a semi-prime quasi-Baer right GFC ring (e.g., a semiprime right FPF ring) is achieved by considering the set of nilpotent elements and the centrality of idempotnents; (2) a generalization of S. Page's decomposition theorem for a right FPF ring.
A Randomized Comparison of Intravenous Versus Nebulized Routes for Administering Dexmedetomidine and Ketamine Combination to Facilitate Awake Fibreoptic Intubation

Introduction Awake fibreoptic intubation is a technique used to secure the airway of patients who are having predicted difficult intubation. We compared two routes, intravenous and nebulized, for administering a combination of ketamine and dexmedetomidine to patients requiring sedation for fibreoptic intubation. Methods and materials After approval of the institutional ethics committee, 64 patients between 18 and 60 years belonging to the American Society of Anesthesiologists physical status I or II and having predicted difficult airway were randomized to receive study medications through either intravenous (group I, n = 32) or nebulized (group N, n = 32) routes. Group I patients were given a combination of ketamine and dexmedetomidine through intravenous route. Group N patients were nebulized with a combination of ketamine and dexmedetomidine. The time required for awake fiberoptic intubation was the primary outcome variable. In addition, sedation score, cough severity, patient tolerance, intubating condition, hemodynamic changes, recall of events and discomfort during intubation, and any adverse events in the perioperative period were also compared. Results Compared to group N, the time needed to intubate the patients was significantly less in group I (75.69 ± 10.83 versus 49.19 ± 3.60 seconds, p < 0.001). Observer assessment sedation/alertness score (p < 0.001), cough severity (p < 0.001), patient tolerance (p < 0.001), and intubating condition (p = 0.001) were statistically significant, all conditions being better in group I. Patient discomfort and recall of the procedure were statistically similar between the groups. Conclusions The efficacy of a combination of dexmedetomidine and ketamine through the intravenous route is better than the nebulized route for patients undergoing awake fibreoptic intubation.
A new method to deal with fuzzy classification problems by tuning membership functions for fuzzy classification systems

Abstract This paper presents a new method to construct and tune membership functions and generate fuzzy classification rules from training instances for handling the Iris data classification problem. First, we find two attributes of the Iris data from the training instances that are suitable to serve as classification criteria. Then, we construct and tune the membership functions of these two attributes and generate fuzzy classification rules from the training instances. The proposed method generates the same number of fuzzy classification rules as the number of species of the training instances. It generates fewer fuzzy classification rules and can get a higher average classification accuracy rate than the existing methods.
A Fractional Calculus Perspective of PID Tuning

This paper gives an interpretation of the classical PID controller tuning based on the fractional calculus theory. The PID parameters are calculated according with the specifications of an elementary system whose open-loop transfer function is a fractional order integrator (FOI). The performances of the two systems are compared and illustrated through the frequency and time responses.Copyright © 2003 by ASME
Study of magnetic transitions in Dy by means of reversible Villari effect

Application of a new method—high-sensitivity measurements of periodic stress-induced induction (reversible Villari effect, RVE)—allows us to uncover new effects in the low-field behaviour of different magnetic phases of polycrystalline Dy. A loss of magnetoelastic coupling (Villari critical point) is found around 166 K, close to the temperature which was supposed to separate the helical structure from the possible vortex one. We show that the low-field magnetic hysteresis emerges immediately below the Néel temperature and, below the Villari critical point, demonstrates a qualitative difference for cooling and heating from the ferromagnetic state. It has been found that, below the Villari critical point, in the helical phase, polycrystalline Dy is in essentially non-equilibrium state, revealed as a time-dependent relaxation of RVE. We relate the effects observed in the helical phase with thermal internal stresses and existence of lattice defects which inherit ferromagnetic order upon heating from the ferromagnetic state.
Measurements and modelling of aerosol single-scattering albedo : Progress, problems and prospects

The net effect of atmospheric aerosols in the radiation balance is determined by both their scattering and absorption of solar radiation. The combined optical effect is expressed in the single scatter albedo, {omega}, of the particles. Currently available data on {omega} are insufficient for definitive use in climate models because most of them are not corrected for the method-dependent effect of the scattering portion of the aerosol on the measured absorption, most refer to the dry state of the aerosol, and the coverage of the globe is far from being complete. Standardisation and calibration of the measurements is needed. Modelling exercises using currently available data on {omega} should clearly state that corrections are required. The purpose of this review is not to suggest a particular range of values for single scatter albedo. Rather, it is to illustrate that the uncertainties are currently imbedded in various data sets because of the lack of calibration, the possibility that many of the extant methods systematically overestimate light absorption coefficients, and the necessity of including the influence of humidity in models. (orig.) 95 refs.
Energy-efficient Generating System for HVDC Off-shore Wind Turbine

This thesis investigates the design of energy efficient generating systems for off-shore wind turbines. For the generator part of the electric drive system, a surface mounted permanent magnet synchronous generator (SPMSG), an interior permanent magnet generator (IPMSG) as well as a synchronous reluctance generator (SynRG) have been investigated. The system includes a gearbox to increase the rotor speed to be suitable for the generator speed. The system is investigated with IGBT-equipped converters. Furthermore, different dc-link voltages are studied. The results indicate that the most suitable system when cost is ignored includes an IPMSG with a dc-link voltage between the voltage level that gives maximum torque per ampere operation for the whole operation region and the minimum dc-link voltage level which gives the required rated torque. If the IPMSG is replaced by a SynRG with the same size, 74% of the IPMSG rated power can be converted. Furthermore, if instead a SPMSG with the same size is used, the annual energy efficiency of the system is lower compared to the IPMSG, and for both the SynRG and the SPMSG, the power factor becomes lower, compared to the IPMSG. One found disadvantage of the IPMSG is the relatively high torque ripple. Therefore, two methods to reduce the torque ripple are suggested and investigated, showing a substantial torque ripple reduction of about two thirds if either a fractional slot winding or if skewing of the stator is used.
The key theorem of learning theory based on complex fuzzy variable on credibility space

The definition of complex fuzzy variable is introduced,and some properties are presented on Credibility measure space.Furthermore,the concepts of empirical risk functional,expected risk functional and the strict consistency of empirical risk minimization principle on Credibility measure space are proposed.According to these properties and concepts,the key theorem of learning theory based on complex fuzzy variable is given and proven.The investigations lay essential theoretical foundations for the systematic and comprehensive development of the complex statistical learning theory on Credibility space.
Amplitude and phase changes in the light curves of long-period variables

We describe the derivation of periodicities from visual data for long-period variables, and give expected errors for the derived amplitude, phase and frequency. We extend this analysis by using a moving window to deduce variation in phase and amplitude over time. The method is demonstrated on the Mira-type variable T Cas, and shows evidence that the phase of the first harmonic (period 222.4 d) varies relative to the fundamental (period 444.8 d) with a period of approximately 3000 d. Our analysis parallels, but is completely independent of, the work of Szatmary, Gal & Kiss and Bedding et al., who both use an approach based on wavelet analysis.
Exploring Linear Homeomorphic Clusters on Nonlinear Manifold

This paper proposed a new clustering alogorithm based on ant colony optimization and Grassmann manifold for exploring linear homeomorphic clusters on non-linear dataset manifold.The minimum processed units of algorithm were first lifted to suppress the influence of noise,and then the similarity of unit was measured according to Grassmann manifold and a geodesic-like distance was designed for ensuring the connectivity of cluster.To improve the quality of cluster generated by ant colony clustering,the direction of minimum surface complexity was defined and introduced into the pheromone update strategy as heuristic information.Experiments and analysis on several datasets have shown the successful performance on linear homeomorphic clustering compared to traditional clustering algorithms.
Religion and Sport: Future Directions for the Field

Gaining traction the last four decades, the field of religion and sport advances several different methodological and theoretical directions for understanding these cultural phenomena. Primarily focusing on sport as religion or religious case studies in sporting spaces, scholarly input demonstrates how valuable analyzing both religion and sport can be particularly within Western societies. These contributions to the academic field lay a strong foundation for critical reflection and movement forward while also contributing significantly to broader discussions in religious studies. In the following, I quickly review some of the important scholarly additions to understanding the relationships between religion and sport and then utilize these previous directions to offer some suggestions for ways to progress the field forward. Obviously, the literature review and the suggestions are not exhaustive but an attempt to contribute to a discussion regarding the advancement of the field of religion and sport.