Miracle-dz/UniFAR-FTUs huggingface dataset:
A New Hyper-Heuristic Multi-Objective Optimisation Approach Based on MOEA/D Framework

A multi-objective evolutionary algorithm based on decomposition (MOEA/D) serves as a robust framework for addressing multi-objective optimization problems (MOPs). However, it is widely recognized that the applicability of a fixed offspring-generating strategy in MOEA/D can be limited, despite its foundation in the MOEA/D methodology. Consequently, hybrid algorithms have gained popularity in recent years. This study proposes a novel hyper-heuristic approach that integrates the estimation of distribution (ED) and crossover (CX) strategies into the MOEA/D framework based on the view of successful replacement rate (SSR) and attempts to explain the potential reasons for the advantages of hybrid algorithms. The proposed approach dynamically switches from the differential evolution (DE) operator to the covariance matrix adaptation evolution strategy (CMA-ES) operator. Simultaneously, certain subproblems in the neighbourhood denoted as B(i) employ the Improved Differential Evolution (IDE) operator to generate new individuals for balancing the high evaluation costs associated with CMA-ES. Numerical experiments unequivocally demonstrate that the suggested approach offers distinct advantages when applied to a three-objective test suite. These experiments also validate a significant enhancement in the efficiency (SRR) of the DE operator within this context. The perspectives and experimental findings, with a focus on the Success Rate Ratio (SRR), have the potential to provide valuable insights and inspire further research in related domains.
Collective Behaviors of Isotropic Micromotors: From Assembly to Reconstruction and Motion Control under External Fields

Swarms of self-propelled micromotors can mimic the processes of natural systems and construct artificial intelligent materials to perform complex collective behaviors. Compared to self-propelled Janus micromotors, the isotropic colloid motors, also called micromotors or microswimmers, have advantages in self-assembly to form micromotor swarms, which are efficient in resistance to external disturbance and the delivery of large quantity of cargos. In this minireview, we summarize the fundamental principles and interactions for the assembly of isotropic active particles to generate micromotor swarms. Recent discoveries based on either catalytic or external physical field-stimulated micromotor swarms are also presented. Then, the strategy for the reconstruction and motion control of micromotor swarms in complex environments, including narrow channels, maze, raised obstacles, and high steps/low gaps, is summarized. Finally, we outline the future directions of micromotor swarms and the remaining challenges and opportunities.
From Universe to Metaverse: A Leap Into Virtual Collaboration at NASA JPL

During the upheaval of the COVID-19 pandemic, the Jet Propulsion Laboratory (JPL), like most organizations, found itself trying to adjust to a new reality of remote and hybrid work. An emerging concept that seemed promising was the notion of a metaverse—a collection of technologies that could create, or recreate, our physical spaces and interactions. In response, JPL experimented with a rollout of its own metaverse, with mixed results. While some technologies filled a vital role in reconnecting the workforce, others were novelties at best and hindrances at worst. This article provides a candid review of the technical and policy elements that were explored as part of the Welcome to Our Metaverse experiment, the results that were observed, and the key takeaways and lessons learned for further exploration and technology adoption.
Sistema simulador del sonar de los submarinos. Una aplicación para la Marina de Guerra del Perú

In this Thesis work the development of a Software Simulation that allows closest offer at training to the reality for sonar operator’s personal in formation and described System sets out; with the objective to present the operability on board to Sonar device of the submarine units, as well as interaction with existing simulation modules inside the simulator Attack of Submarine Force of the Navy military of Peru, Located at the Submarine School. The Thesis is divided in four parts: the Introduction to the proposed subject and its problematic; Theoretical Frame that corresponds to variables that include the reach of this work; the State of the Art where a case in individual of a Sonar Simulator Software constructed under another programming language is exposed, which does not have similarity with electronic equipment sonar on board of the submarine units; finally the exposition of a development proposal, improvement and execution of a sonar simulator software that fulfills the functionality of the original electronic equipment on board. The hypothesis is in demonstrating that it’s possible to develop a sonar simulator software that allows to carry out functionalities of the original electronic equipment. Proven this throughout the Thesis, the objective is obtained: to demonstrate that it’s possible to construct a sonar simulator software that shows the contacts, generate the noise corresponding, sent the data necessary to other simulation modules, and simulating the Test containing in the original equipment.
Geological evidence for intra-Jurassic faulting in the Wessex Basin and its margins

Geological observations on Jurassic outcrops close to major faults in the Wessex Basin–Mendip area reveal the local presence of ammonite- and brachiopod-bearing sediments penetrating underlying strata. Toarcian and Bajocian neptunian dykes and particularly sills are associated with the Eypemouth Fault and Bajocian sills with the Bride Fault and Mere Fault. In the Mendip area numerous neptunian dykes of Hettangian, Sinemurian, Pliensbachian and Bajocian ages, cross-cutting Carboniferous Limestone, are recorded, typically also associated with major basement faults (e.g. Cranmore and Leighton Faults). These periods of assumed sediment injection are taken as indicating times of displacement along the faults in question. Variations in facies (Hettangian–Sinemurian, Toarcian, Bajocian, uppermost Oxfordian, Kimmeridgian) spatially linked to faults are documented from some areas, and boreholes reveal considerable fault-controlled thickness changes in Hettangian–Sinemurian, Bajocian and Kimmeridgian sediments. The timing of Jurassic faulting in the Wessex Basin–Mendip area thus polarizes into two intervals: Hettangian–Bajocian and latest Oxfordian onwards, correlating with the early rifting phases of the Central and North Atlantic respectively.
Can a Social Work Intervention Reduce Kidney Donor Anxiety? A Pilot Test

The purpose of this study is to explore the effect of social work counseling on kidney donor anxiety in Nadiad, Gujarat, India. Thirty potential kidney donors were selected to receive counseling by a nephrology social worker during the kidney donation process, and 30 potential kidney donors were selected for a control group that did not receive counseling beyond the usual course of care. Anxiety was measured using the Comprehensive Anxiety Test. The group that received counseling from a social worker had a statistically significant decrease in their comprehensive anxiety, which was measured prior to kidney donation and at six months after kidney donation, when compared to the control group. These results suggest that counseling by a nephrology social worker during the kidney donation process may lower donor anxiety. This study and future research may help more kidney disease patients receive kidney transplants from living donors in India and beyond.
Cardiac Metastasis Presenting as ST-Elevation Myocardial Infarction

A 52-year-old woman with a history of lung cancer presented with progressive shortness of breath. Her ECG showed evidence of ST-elevation myocardial infarction (STEMI) though no evidence of obstructive coronary artery disease (CAD) was seen on coronary angiography. Further imaging with CT and cardiac MRI (CMRI) demonstrated tumor, likely metastatic cancer, within myocardial tissue. This case is demonstrative of the possible relationship between ST-segment elevation on ECG and corresponding tumor invasion and highlights the differential diagnoses of STEMI, including cardiac metastasis.
Perovskite from the Dutoitspan kimberlite, Kimberley, South Africa: implications for magmatic processes

Abstract Perovskite compositions are used to investigate the relationship between the minor components (i.e. LREE, Fe3+and Nb) and the oxygen fugacity (ƒO₂) of perovskite in four different kimberlite lithofacies from the Dutoitspan pipe, Kimberley, South Africa, which range from diamondiferous to barren. The perovskite textures and chemical variations provide insight into magmatic and eruptive processes. Some crystals display cores with rims separated by a sharp boundary. The cores contain larger Na and LREE contents relative to the rims, which show a large increase in Fe3+ and Al. The mid-grade and barren kimberlites have bi-modal cores, reflected in the mineral chemistry, signifying multiple batches of magma and magma mixing. The ƒO₂ of the magma is determined by an Fe-Nb oxygen barometer. The most diamondiferous kimberlite has the greatest Fe3+ content and highest ƒO₂ (NNO -3.6 to -1.1). The kimberlite containing large diamonds has the smallest Fe3+ content and lowest ƒO₂ (NNO -5.2 to -3.0). The barren and mid-grade kimberlites display a wide range of ƒO₂, (NNO -5.3 to -1.5) as a result of perovskites forming in different melts and subsequently mixing together. Chemical and petrological evidence suggests that the volatile content, degassing, decompression and rate of crystallization can influence the rate at which the magma is erupted. One possibility is that the most oxidized magma, containing the highest volatile content, is therefore erupted much more rapidly, preserving diamond as a consequence.
Brief instrument for direct complex functionality assessment: a new ecological tool

Background The Direct Assessment of Functional Status (DAFS) is the only instrument validated in Brazil that assesses functionality directly with the patient. However, this clinical tool takes a long time to be administered. This limits its use in hospitals and outpatient clinics that require brief assessment instruments. Additionally, we need to count with a direct assessment because the number of older adults living alone is increasing and we thus lack reliable informants. Objective This study aimed to present the development and content validity evidence of a direct complex functionality test for older adults, the Brief Instrument for Direct Functionality Assessment (BIDFA). Method A total sample of 30 older adults and eight expert judges took part in the study stages. The BIDFA construction stages were: (1) literature review of functionality instruments; (2) development of seven ecological tasks to evaluate the performance of daily complex activities with the older adults; (3) content analysis by eight expert judges; (4) pilot study with 30 older adults; (5) the ecological analysis of items; (6) focus group analysis; and (7) final version of the BIDFA. Results The BIDFA had evidence of content validity with an agreement index of 96.5%. The final version of BIDFA was left with six domains of complex functionality divided into semantic memory and time orientation; shopping skills; executive attention, math and finance skills; organization; planning and procedural memory; and problem-solving. The complex functionality score by BIDFA ranges from 0 to 100 points. Conclusion The BIDFA was found to have good content validity by the expert judges and by the ecological analysis of the items by the older adults. The new instrument is expected to help assess the functional status of older adults, in an abbreviated context including complex functionality demands, with a wider range of total and subdomain scores.
Nutritional composition, phytochemical, and functional properties of six soybean varieties cultivated in Cameroon

The objective of this study was to evaluate the influence of different varieties on the nutritional composition, phytochemical, and functional properties of selected soybean varieties cultivated in Cameroon. Soybean varieties TGX 1835, TGX 2001‐8DM, MAK SOY 1N, MAK SOY 3N, MAK SOY 4N, and SOUNG PUNGUNG 2400 were collected and analyzed for their nutritional composition (proximate composition and mineral content), oil quality (peroxide, thiobarbituric acid, iodine, and acid values), total phenolic content, and functional properties. Results of the proximate composition showed that soybean varieties MAK SOY 3N, MAK SOY 4N, and TGX 1835 had the highest protein and lipid contents. The calcium and potassium contents were expressively higher in soybean variety MAK SOY 4N. Soybean variety MAK SOY 3N portrayed the best magnesium, zinc, and iron contents. The oils from all the six soybean varieties exhibited very good chemical properties as far as their safety is concerned. TGX 1835, MAK SOY 4N, and SOUNG PUNGUNG 2400 had the highest total phenolic content. The functional properties presented by all six soybean varieties were similar. These new varieties can be exploited for their nutritional and technological properties. The population should be encouraged to produce and consume them.
Modeling and simulation of queuing system to improve service quality at commercial bank of Ethiopia

Abstract This study aims to develop a queuing model at the Commercial Bank of Ethiopia to improve the service quality perceived by customers using a simulation tool. Performance variables that were considered when developing this model are the average waiting time for a client to get service, customer arrival rates, and service time. After the identification of the problem, the service quality of the bank is assessed using a questionnaire that was prepared in SERVQUAL format. The filled-out and returned questionnaires were analyzed using SPSS, and the results show that the service quality of the bank was deemed very low. The recorded data was then ultimately used as a basis for the determination of arrival, service rates, and the distribution function in the simulation input analyzer. The distribution function determined was used as an input for the development of the existing queue model, and based on that, scientific scenarios are adopted from scientific research and further observations at the bank are added to show enhancement of the existing model. The study used four scenarios to test the response group, and one scenario was selected as the best. This has been identified by adding a server to the counters where there is less utilization, that is, servers four and five. As a result, the waiting time has been minimized by 20 minutes under server four and by 83.4 minutes under server five. Also, the number of customers served per day can be increased from 1048 to 1168, which is 11.45% improvement.
Three‐dimensional velocity structure of the outer fore arc of the Colombia‐Ecuador subduction zone and implications for the 1958 megathrust earthquake rupture zone

In 2005, an onshore, offshore 3‐D refraction and wide‐angle reflection seismic experiment was conducted along the convergent margin at the border between Colombia and Ecuador, over the rupture zone of the 1958, Mw 7.6 subduction earthquake. A well‐defined Vp velocity model of the plate boundary and upper and lower plates was constructed, down to 25 km depth, using first arrival traveltimes inversion. The model reveals a several kilometers thick, low‐velocity zone in the upper plate, located immediately above the interplate contact. This low‐velocity zone might be related to alteration and fracturing of the mafic and ultramafic rocks, which composed the upper plate in this area by fluids released by the lower plate with possible contributions from sediment underplating. Near the toe of the margin, the model shows a low‐velocity gradient in the outer wedge, which is interpreted as highly faulted and fractured rocks. This low‐velocity/low‐gradient region appears to limit the oceanward extension of the rupture zones of the 1958 and 1979 earthquakes, possibly because coseismic deformation and uplift of the outer margin wedge dissipates most of the seismic energy.
Privacy-Preserving Queries Using Multisource Private Data Counting on Real Numbers in IoT

In this article, our primary focus is on the current lack of privacy-preserving queries tailored to real-number fields rather than integers. We take multisource private data counting on real numbers (R-PDC) within IoT architecture as a breakthrough point to enable diverse query services without revealing sensitive data. The advantage of this is that the parameters required for queries remain stable and minimal in the scenario of wide numerical domain and dynamic changed data set. First, we present a general R-PDC method based on curve approximation, in which an approximate query function (AQF) is established to approximate the constructed ideal counting curve for element queries on target set. We also demonstrate curve construction process of AQF and provide the feasibility theorem of AQF for counting a target element within an allowable error. By integrating the R-PDC method with fixed-point fully homomorphic encryption, an efficient R-PDC scheme is presented to perform multiparty collaborative queries in IoT. In security aspect, the R-PDC scheme on <inline-formula> <tex-math notation="LaTeX">$(m,\epsilon)$ </tex-math></inline-formula>-AQF is proved to be statistically secure against chosen element attack (CEA) for cumulative error <inline-formula> <tex-math notation="LaTeX">$\epsilon $ </tex-math></inline-formula> and data set size <inline-formula> <tex-math notation="LaTeX">$m$ </tex-math></inline-formula>. Moreover, the scheme achieves <inline-formula> <tex-math notation="LaTeX">$O(nm\gamma)$ </tex-math></inline-formula> computation and <inline-formula> <tex-math notation="LaTeX">$O(n^{2}m\gamma)$ </tex-math></inline-formula> communication complexities for <inline-formula> <tex-math notation="LaTeX">$n$ </tex-math></inline-formula> servers and <inline-formula> <tex-math notation="LaTeX">$\gamma $ </tex-math></inline-formula>-length fraction. Finally, as an extension of AQF over single attribute, multidimensional R-PDC method is applied into privacy-preserving Naive Bayes classifier and Apriori algorithm over multiple attributes. Our work provides substantial support and insights for the advancement of privacy computation.
New seismic gap hypothesis: Five years after

We use earthquake data from 1989–1994 to test a forecast by Nishenko based on the seismic gap theory. We refer to this forecast as the “New Seismic Gap” hypothesis, because it is the first global forecast based on the seismic gap hypothesis that considers the recurrence time and characteristic earthquake magnitude specific to each plate boundary segment. Nishenko's forecasts gave probabilities that each of about 100 zones would be filled by characteristic earthquakes during periods of 5, 10, and 20 years beginning on the first day of 1989. Only the first of these can be tested now. We used three tests based on (1) the total number of zones filled by characteristic earthquakes, (2) the likelihood that the observed list of filled zones would result from a process with the probabilities specified in Nishenko's hypothesis, and (3) the likelihood ratio to that of a Poissonian null hypothesis. The null hypothesis uses a smoothed version of seismicity since 1977 and assumes a Gutenberg-Richter magnitude distribution. We used both the Harvard Centroid moment tensor and the National Oceanic and Atmospheric Administration preliminary determination of epicenters catalogs in our test. We also used several different magnitude cutoffs in our tests, because Nishenko's forecast did not specify a clear relationship between the characteristic earthquake magnitude and the threshold magnitude for a successful prediction. Using a strict interpretation, that only earthquakes equal to or larger than the characteristic magnitude should be counted, both catalogs show only two qualifying earthquakes in the entire area covered by the forecast. The predicted number is 9.2, and the discrepancy is too large to result from chance at the 99% confidence level. The new seismic gap hypothesis predicts too many characteristic earthquakes for three reasons. First, forecasts were made for some zones specifically because they had two or more earthquakes in the previous centuries, biasing the estimated earthquake rate. Second, open intervals before the first event and after the last event are excluded in calculation of recurrence rate. Third, the forecast assumes that all slip in each zone is released in characteristic earthquakes of the same size, while in fact considerable slip is released by both smaller and larger earthquakes. The observed size distribution of earthquakes is inconsistent with the characteristic hypothesis: instead of a deficit of earthquakes above the characteristic limit, earthquake numbers are distributed according to the standard Gutenberg-Richter relation. By lowering the magnitude threshold for qualifying earthquakes, it is possible to reduce the discrepancy between the observed and predicted number of earthquakes to an acceptable level. However, for every magnitude threshold we tried, the new seismic gap model failed the test on the number of filled zones, or the likelihood ratio test, or both, at least at the 95% confidence level.
A Wideband Circularly Polarized Antenna With High Impulse Signal Fidelity for IR-UWB Positioning Applications

A wideband circularly polarized (CP) antenna with conical-beam radiation is designed by a circular monopolar patch antenna (CMPA) with a tapered feeding, eight shorting pins, and eight sickle-shaped branches in the ground plane. Firstly, the <inline-formula> <tex-math notation="LaTeX">$\text {TM}_{{01}}$ </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$\text {TM}_{{02}}$ </tex-math></inline-formula> modes and the sickle-shaped branches are presented to generate the radiated <inline-formula> <tex-math notation="LaTeX">$\theta $ </tex-math></inline-formula>-polarization and <inline-formula> <tex-math notation="LaTeX">$\varphi $ </tex-math></inline-formula>-polarization components, respectively. Secondly, a tapered feeding probe with a larger radius is then employed to reduce the input resistance and improve the impedance matching of this antenna fed at the center. Therefore, the proposed antenna has a 10dB impedance bandwidth of 46.8% and a 3dB axial ratio (AR) bandwidth of 36.7%. Consequently, the attractive performance of the antenna with high impulse signal fidelity (97.4%) demonstrates its capacity for impulse-radio ultra-wideband (IR-UWB) positioning applications in a multipath interference environment.