Miracle-dz/UniFAR-FTUs huggingface dataset:
Consensus control of discrete-time multi-agent systems with time-delays and multiplicative measurement noises

This work is concerned with stochastic consensus conditions of discrete-time multi-agent systems with time-delays and multiplicative measurement noises. By the algebraic graph theory and the matrix theory, the stochastic consensus problem is converted into the stochastic stability problem of discrete-time stochastic delayed systems driven by multiplicative noises. Then by establishing the stochastic stability criteria for discrete-time stochastic delayed systems, the stochastic consensus conditions are deduced. For the case with first-order dynamics, the sufficient conditions for the mean square and the almost sure strong consensus are deduced under balanced digraphs. For the case with second-order dynamics, the consensus analysis is given under undirected graphs, and it is proved that for any given bounded time-delay and noise intensity, the stochastic weak consensus for the position and stochastic strong consensus for the velocity can be achieved by carefully choosing the control gains. These consensus results are further extended to the leader-following case.
Homogeneous Problem with Two-point Conditions in Time for Some Equations of Mathematical Physics

We study the problem for homogeneous partial differential equations in two variables which are of second order with respect to time variable and of finite order with respect to another (spatial) variable, with homogeneous two-point conditions in time. We propose a method for the construction of nontrivial solutions of this problem when its characteristic determinant is nontrivial and the set of its zeroes is not empty. We apply this method to the construction of non-zero solutions of homogeneous two-point problems for some equations of mathematical physics.
Intertemporal Efficiency Analysis on Indonesia Islamic Banks: A Window DEA Approach

Introduction to The Problem: Measurement of the level of efficiency of Islamic banks in Indonesia is widely carried out. But almost no one has done research with the DEA window analysis approach.Purpose/Objective Study: This paper aims to measure the efficiency of Islamic banks in IndonesiaDesign/Methodology/Approach: – Using Data Envelopment Analysis (DEA) method and window DEAFindings: This research shows that the efficiency of Islamic banks that included in observations from 2011-2016 fluctuated with a mean value of 63 percent. From the perspective of efficiency stability analysis through several summary statistics such as standard deviation (SD), Long Distance per Window (LDW), Long Distance per Period (LDP) and Long Distance per Year (LDY), the relatively stable Islamic bank efficiency value is Bank SyariahMandiri (BSM) and BCA Syariah.
An innovative, technology-enhanced instructional approach to address the diverse competencies of STEM students in math classes

The transition from secondary to higher education in mathematics raises several challenges for students of STEM (Science, Technology, Engineering, Mathematics) studies. These include amongst others different emphases and requirements and the prohibition of computer algebra systems in basic math education at universities, which leads to a high dropout rate in the first year of study. To address these challenges, a so-called three-level system was introduced at TU Wien (Vienna University of Technology) in first-year mathematics courses to support and encourage students with different levels of high school knowledge. This approach entails several requirements such as a higher correction effort which is countered by the use of an e-learning system called Möbius. It not only provides automatic grading of exercises but also individual and immediate feedback for the students. The analysis of the grade distribution of two years indicates a positive influence of the introduced three-level system on first-year STEM students.
Technical Efficiency of Small-Scale Pig Farming in Indonesia

Live pigs are still the mainstay of livestock sub-sector exports inIndonesia. Although pig farming in Indonesia has competitivenessin the international market, its productivity shows a decliningcondition. The purpose of this research is to measure the level oftechnical efficiency of small-scale pig breeding and fatteningbusinesses. The data used come from the results of the FarmHousehold Survey conducted by the Central Bureau of Statistics(BPS). The survey was conducted in 20 provinces in Indonesia,with a sample size of 6,681 small-scale or household-scale pigfarming. The research used the Stochastic Production Frontier(SPF) model to measure the level of technical efficiency of pigfarming and used the maximum likelihood method to estimate it. The results showed that the level of technical efficiency of pigfarming is relatively low. The average technical efficiency level offattening pig farming is higher than that of the breeding. Thefactors of farming experience, market orientation, and feed typecombination have a positive influence in improving efficiency. Public policies that improve pig farmers' access to farm inputs andmarkets are expected to significantly improve the productivity ofsmall-scale pig farming.
Effect of promotional activities on brand loyalty of detergents among Nigerian university students: A study of veritas University Abuja

In Nigeria, there has generally been a decline in consumers’ exhibition of loyalty towa rds staple detergents brands, usually because of the availability of many substitute products and high price consciousness among consumers, especially University Students. The objective of this study was to determine the effect of promotional activities on brand loyalty of detergents among University Students with emphasis on Veritas University Abuja and using Sunlight detergent as case study. The study is a survey research with data collected using close ended questionnaires designed with 5-point Likert scale questions. The study used a population of 1599 comprising all students of Veritas University, Abuja with a sample size of 320 (using Taro Yemani’s formula) and respondents were selected randomly. The collected data was analyzed using multiple regression method and the findings revealed that promotional tools of advertising, public relations and sales promotions have a significant effect on University student’s brand loyalty to detergents. Thus, the study concluded that increased employment of promotional activities would lead to increase in brand loyalty towards detergent or fast moving consumer goods, and recommended among others that Marketers of detergents on Nigerian campuses should place more emphasis on the effective deployment of promotional tools for their brand to build students’ interest and desire to purchase their goods, also Brand managers of th e studied brand should engage in proactive promotions, i
Measuring children's proportional reasoning, the tendency for an additive strategy and the effect of models

We report a study of 10 -14 year old children’s use of additive strategies while solving ratio and proportion tasks. Rasch methodology was used to develop a diagnostic instrument that reveals children’s misconceptions. Two versions of this instrument, one with “models” thought to facilitate proportional reasoning and one without were given to a sample of 303 children. We propose a methodology for examining systematically the pupils’ additive errors, their effect on ratio reasoning and how contingent on “model” presentation this is. First we provide a measure on which pupils, item-difficulty and additive errors can be located. We then construct a new measure, which we name “tendency for additive strategy”. Finally, we find that the presence of “models” affects this new measure and draw inferences for choices of items in assessment and teaching.
GAS-PHASE ABSORPTIONS OF C+60: A NEW COMPARISON WITH ASTRONOMICAL MEASUREMENTS

Campbell et al. recently revised, by a few tenths of an Å, the wavelengths for their low-temperature laboratory measurements of fullerene bands. This accounts for the perturbation caused by the He atom to the spectrum. Here, we demonstrate that the revised laboratory wavelengths improve coincidence with the 9632, 9577, 9428, 9365, and 9348 diffuse interstellar bands detected towards the stars HD 46711, HD 169454, and HD 183143.
The Effect of Individual Entrepreneurial Orientation on Student’s Entrepreneurial Intention in West Kalimantan

Entrepreneurship has become one of the main issues in government policy in various countries. Therefore, understanding entrepreneurial intention (EI) and individual entrepreneurial orientation (IEO) is important for research. EI is influenced by many factors, such as social environment and cultural and psychological factors. IEO is an individual personality characteristic that reflects a tendency to engage in entrepreneurial behavior with three dimensions, namely, innovative, proactive, and risk-taking. However, there has not been much research on IEO and EI in the context of vocational students. So, through this research, the relationship between IEO and EI for vocational students in Indonesia will be explained in detail. This study involved 388 vocational students in West Kalimantan. The participants were randomly selected and analyzed using quantitative methods to test the proposed hypothesis. Based on the results of the study, it was found that there was a positive and significant relationship between the dimensions of IEO on EI both directly and indirectly. The implications of the results of this research are that agencies and governments tasked with developing entrepreneurial ecosystems must understand the importance of IEOs in increasing EI. Therefore, policies and programs must be designed to develop IEOs and create a conducive environment for individuals to develop as entrepreneurs. However, this study had several limitations. First, this study only involved students from one vocational school. Therefore, the research findings may not necessarily be applicable to large populations. Second, this study used quantitative methods, so it did not explain in depth the individual experiences in forming EI.
Linear stability and stability of syzygy bundles

Let [Formula: see text] be a smooth irreducible projective curve and let [Formula: see text] be a complete and generated linear series on [Formula: see text]. Denote by [Formula: see text] the kernel of the evaluation map [Formula: see text]. The exact sequence [Formula: see text] fits into a commutative diagram that we call the Butler’s diagram. This diagram induces in a natural way a multiplication map on global sections [Formula: see text], where [Formula: see text] is a subspace and [Formula: see text] is the dual of a subbundle [Formula: see text]. When the subbundle [Formula: see text] is a stable bundle, we show that the map [Formula: see text] is surjective. When [Formula: see text] is a Brill–Noether general curve, we use the surjectivity of [Formula: see text] to give another proof of the semistability of [Formula: see text], moreover, we fill up a gap in some incomplete argument by Butler: With the surjectivity of [Formula: see text] we give conditions to determine the stability of [Formula: see text], and such conditions imply the well-known stability conditions for [Formula: see text] stated precisely by Butler. Finally we obtain the equivalence between the (semi)stability of [Formula: see text] and the linear (semi)stability of [Formula: see text] on [Formula: see text]-gonal curves.
Analysis of parallel-operated self excited induction generators

The paper presents an iterative solution for the problems related to steady state performance of self-excited induction generators operating in parallel. The analysis is based on voltage and current balance equations derived from an inverse-model for the steady state equivalent circuit of induction machines. The nonlinearity in the magnetization characteristics has been taken into account by piecewise linearisation. The proposed method is general and can be applied for analysis of any number of parallel connected machines. Theoretical predictions and experimental results are presented to study different performance characteristics of the system.
Three-dimensional direct numerical simulation of wake transitions of a circular cylinder

This paper presents three-dimensional (3D) direct numerical simulations (DNS) of flow past a circular cylinder over a range of Reynolds number ( $Re$ ) up to 300. The gradual wake transition process from mode A* (i.e. mode A with large-scale vortex dislocations) to mode B is well captured over a range of $Re$ from 230 to 260. The mode swapping process is investigated in detail with the aid of numerical flow visualization. It is found that the mode B structures in the transition process are developed based on the streamwise vortices of mode A or A* which destabilize the braid shear layer region. For each case within the transition range, the transient mode swapping process consists of dislocation and non-dislocation cycles. With the increase of $Re$ , it becomes more difficult to trigger dislocations from the pure mode A structure and form a dislocation cycle, and each dislocation stage becomes shorter in duration, resulting in a continuous decrease in the probability of occurrence of mode A* and a continuous increase in the probability of occurrence of mode B. The occurrence of mode A* results in a relatively strong flow three-dimensionality. A critical condition is confirmed at approximately $Re=265{-}270$ , where the weakest flow three-dimensionality is observed, marking a transition from the disappearance of mode A* to the emergence of increasingly disordered mode B structures.
Role of Employee Performance During Covid-19: Do Motivation and Commitment Matter?

Purpose – This study tries to analyze the relationship between job satisfaction and employee performance with the mediating variables of work motivation and organizational commitment in during the Covid-19 pandemic. Methodology – Structural Equation Model was built to capture the relationship between variables using purposive sampling, with the sample criteria being lecturers who have worked in both public and private tertiary institutions with a minimum work period of 2 years. When the questionnaire was distributed, the respondent was working through working-from-home scheme. In order to fulfil requirement from SEM model, 150 respondents were taken, and 128 questionnaire that can be used in estimation process. Findings – The results showed that work motivation and organizational commitment had no effect on employee performance, nor were they mediating variables on job satisfaction. This weak relationship proves that the pandemic is a difficult time for workers. Furthermore, satisfaction from a well-completed job is objectively beneficial, but the feeling appears confined to a task without high motivation and commitment. Originality – In case of pandemic time, Work motivation and Organizational commitment fail as a Mediating effect that connects job satisfaction to employee performance. Here’s proves that negative impact of the working-from-home policy is unavoidable.
A Novel G /G -Expansion Method and its Application to the (3 + 1)-Dimensional Burger's Equations

In this article, a novelG � /G � -expansion method is used to look for the travel- ing wave solutions of nonlinear evolution equations. We construct abundant traveling wave solutions involving parameters to the (3 + 1)-dimensional integrable Burger's equations by means of the suggested method. The performance of the method is reliable, useful and gives more new general exact solutions than the existing methods. The novelG � /G � -expansion
Derived Geometry and the Integrability Problem for G-Structures

In this thesis, we study the integrability problem for G-structures. Broadly speaking, this is the problem of determining topological obstructions to the existence of principal G-subbundles of the frame bundle of a manifold, subject to certain differential equations. We begin this investigation by introducing general methods from homological algebra used to obtain cohomological obstructions to the existence of solutions to certain geometric problems. This leads us to a precise analogy between deformation theory and the formal integrability properties of partial differential equations. Along the way, we prove the following differential-geometric analogue of a well-known result from derived algebraic geometry: H∗(N•(S1 ⊗ C∞(M))) ∼= Ω−∗(M) as well as the identification of the infinitesimal generator of the natural S1-action corresponding to the de Rham differential. As a short corollary we obtain a natural isomorphism H∗(Hom(N•(S1 ⊗ C∞(M)), C∞(M))) ∼= Γ(M, ΛTM) leading to a comparison between the standard Gerstenhaber bracket on the left-hand-side of the above equation and the Schouten bracket on the right. These two results are well-known in derived algebraic geometry and are folk-lore in differential geometry, where we were unable to find an explicit proof in the literature. In the end, this machinery is used to provide what the author believes is a new perspective on the integrability problem for G-structures.
0n removable cycles in graphs and digraphs

In this paper we define the removable cycle that, if $Im$ is a class of graphs, $Gin Im$, the cycle $C$ in $G$ is called removable if $G-E(C)in Im$. The removable cycles in Eulerian graphs have been studied. We characterize Eulerian graphs which contain two edge-disjoint removable cycles, and the necessary and sufficient conditions for Eulerian graph to have removable cycles have been introduced. Further, the even and odd removable cycles in Eulerian graphs have also been studied. The necessary and sufficient conditions for regular graphs (digraphs) to have a removable cycles have been characterized. We also define, the removable cycle class.
Observation of Short‐Period Ionospheric Disturbances Using a Portable Digital Ionosonde at Sanya

A number of ionosondes have been operated in China to detect ionospheric disturbances for many years. These ionosondes, however, are not very suitable for the short‐period (<15 min) disturbances due to their poor time resolutions (>5 min). During recent years, the Institute of Geology and Geophysics, Chinese Academy of Sciences, together with the South Central University for Nationalities has been developing a portable digital ionosonde (PDI) equipped with the capability to detect and characterize small‐scale/short‐period ionospheric disturbances and to be quickly assembled and set up at temporary field stations for low‐latitude campaign coordinated observations. The PDI uses a set of technologies (e.g., code multiplexing and antenna/transmitter matching) that allow it to obtain quality Doppler ionograms at a good time resolution with small transmitting antennas. A preliminary analysis of observations by the PDI at Sanya (18.3°N, 109.6°E) shows the presence of ionospheric disturbances with periods ranging between several and tens of minutes. Interestingly, the disturbances (with different periods) were found to simultaneously occur at different F region altitudes, for example, with periods of ~5 and 20 min below and above ~180 km, respectively. The absence of shorter‐period disturbance at higher altitude is consistent with acoustic gravity waves through the region with intrinsic periods above the Brunt‐Väisälä period. The short‐period disturbances observed in F region bottomside are not evident in total electron content. The results demonstrate the capability of PDI to detect ionospheric disturbances with temporal scales down to a few minutes in routine ionogram mode. Future prospects of PDI are outlined.
Insight into contact force local impedance technology for predicting effective pulmonary vein isolation

Background Highly localized impedance (LI) measurements during atrial fibrillation (AF) ablation have the potential to act as a reliable predictor of the durability of the lesions created. Objective We aimed to collect data on the procedural parameters affecting LI-guided ablation in a large multicenter registry. Methods A total of 212 consecutive patients enrolled in the CHARISMA registry and undergoing their first pulmonary vein (PV) isolation for paroxysmal and persistent AF were included. Results In all, 13,891 radiofrequency (RF) applications of ≥3 s duration were assessed. The first-pass PV isolation rate was 93.3%. A total of 80 PV gaps were detected. At successful ablation spots, baseline LI and absolute LI drop were larger than at PV gap spots (161.4 ± 19 Ω vs. 153.0 ± 13 Ω, p < 0.0001 for baseline LI; 22.1 ± 9 Ω vs. 14.4 ± 5 Ω, p < 0.0001 for LI drop). On the basis of Receiver operating characteristic curve analysis, the ideal LI drop, which predicted successful ablation, was >21 Ω at anterior sites and >18 Ω at posterior sites. There was a non-linear association between the magnitude of LI drop and contact-force (CF) (r = 0.14, 95% CI: 0.13–0.16, p < 0.0001) whereas both CF and LI drop were inversely related with delivery time (DT) (−0.22, −0.23 to −0.20, p < 0.0001 for CF; −0.27, −0.29 to −0.26, p < 0.0001 for LI drop). Conclusion An LI drop >21 Ω at anterior sites and >18 Ω at posterior sites predicts successful ablation. A higher CF was associated with an increased likelihood of ideal LI drop. The combination of good CF and adequate LI drop allows a significant reduction in RF DT. Clinical trial registration http://clinicaltrials.gov/, identifier: NCT03793998.
Up-to-Date Imaging and Diagnostic Techniques for Prostate Cancer: A Literature Review

Prostate cancer (PCa) faces great challenges in early diagnosis, which often leads not only to unnecessary, invasive procedures, but to over-diagnosis and treatment as well, thus highlighting the need for modern PCa diagnostic techniques. The review aims to provide an up-to-date summary of chronologically existing diagnostic approaches for PCa, as well as their potential to improve clinically significant PCa (csPCa) diagnosis and to reduce the proliferation and monitoring of PCa. Our review demonstrates the primary outcomes of the most significant studies and makes comparisons across the diagnostic efficacies of different PCa tests. Since prostate biopsy, the current mainstream PCa diagnosis, is an invasive procedure with a high risk of post-biopsy complications, it is vital we dig out specific, sensitive, and accurate diagnostic approaches in PCa and conduct more studies with milestone findings and comparable sample sizes to validate and corroborate the findings.
Yield Performance of Three Sulawesi Local Aromatic Upland Rice Varieties at Various Planting Spacing Distance with Alley Cropping System

The experiement was carried out to examine the production performance of 3 local Sulawesi aromatic upland rice varieties planted with the alley cropping system at various planting distances pattern in Sampano Village, South Larompong District, Luwu Regency, South Sulawesi from February to June 2022. Plant spacing and selection of more adaptive varieties was one aspect for testing. The plants were laid out in a Split Plots Design in a factorial Randomized Completely Block Design. The main plots were 3 local varieties of Ngapa, Sassa, and Latimojong. Subplots were planting spacing consisting of random spacing (spread), 25 cm x 25 cm, 20 cm x 20 cm, and 15 cm x 15 cm. The results showed that 15 cm x 15 cm was the best spacing for planting local aromatic upland rice varieties in the alley cropping system which produced 1,433.24 kg dry grain weight per hectare, while Ngappa variety outperformed Sassa and Latimojong by registering 1,350 kg/ha.