Miracle-dz/UniFAR-FTUs huggingface dataset:
Unsteady MHD free convection nanofluid flows within a wavy trapezoidal enclosure with viscous and Joule dissipation effects

ABSTRACT This article examines the unsteady magnetohydrodynamic free convection flows of Al2O3 (alumina)-water and single-walled carbon nanotube (SWCNT)-water nanofluids within a symmetrical wavy trapezoidal enclosure with viscous and Joule dissipation effects. The governing equations and the corresponding initial and boundary conditions are nondimensionalized and the resulting initial boundary value problem is solved using the mixed finite-element method with polynomial pressure projection stabilization. Streamline and isotherm plots are used to represent the numerical results for the velocity and temperature, respectively. The effects of time t, Hartmann number Ha, wall amplitude a, and solid volume fraction ϕ on the fluid flow and heat transfer are studied.
On the Discrete Approximation by the Mellin Transform of the Riemann Zeta-Function

In the paper, it is obtained that there are infinite discrete shifts Ξ(s+ikh), h>0, k∈N0 of the Mellin transform Ξ(s) of the square of the Riemann zeta-function, approximating a certain class of analytic functions. For the proof, a probabilistic approach based on weak convergence of probability measures in the space of analytic functions is applied.
Composition‐Dependent High‐Performance Phototransistors Based on Solution Processed CH3NH3PbI3/ZnO Heterostructures

Recently, hybrid organic−inorganic perovskites have emerged as promising photo‐sensing materials for next‐generation solution‐processed phototransistors, achieving high responsivity, detectivity, and fast response. Here, a phototransistor that can detect visible light using a low‐cost, solution processed methylammonium lead iodide/zinc oxide (CH3NH3PbI3/ZnO) heterostructure is reported. While typical ZnO thin‐film transistors (TFTs) do not show any photocurrent under visible light illumination, CH3NH3PbI3 (MAPbI3) coated ZnO TFTs exhibit substantial photocurrent. Additionally, the optical, morphological, and structural characteristics of the light‐absorbing layers are further controlled by altering the precursor ratio of methylammonium iodide and lead (II) iodide (MAI:PbI2), which in turn affects the photosensitivity. Stoichiometric composition (MAI:PbI2 = 1:1) of MAPbI3 demonstrates optimal characteristics with a responsivity of 234 A/W and a high detectivity of 3.74 × 1013 Jones under white light illumination. The high photo‐responsivity and detectivity result from the combination of the suitable optoelectronic properties of the stoichiometric MAPbI3 film and its smooth interface with the ZnO channel.
PROXIMATE COMPOSITION, FIBRE FRACTION AND MINERAL COMPOSITION OF ENSILED RICE MILLING WASTE ENHANCED WITH UREA AND POULTRY LITTER

The experiment was conducted to examine the physical properties, pH, temperature, proximate composition, fibre fraction, energy content and mineral composition of ensiled rice milling waste (RMW) treated with urea and poultry litter in a completely randomized design. RMW was treated with of Urea and Poultry Litter (PL) and ensiled in in-vitro laboratory silos (946ml). The treatment combinations were; A (100%RMW), B (100%RMW+ Urea), C (80%RMW + 20%PL), and D (60%RMW + 40%PL). The treatments were ensiled for 21 days in triplicates. At the expiration of each ensiling period, samples were taken for analyses. The results for physical properties showed that most of the silages were adequately fermented with sweet aroma. The compounded silages were acidic 4.34 – 4.86 except treatments B and D which had pH of 7.96 and 7.91 respectively. The temperatures of the silages were significantly (P<0.05) different. Based on the physical properties, pH and temperature evaluated, most of the silages can be considered to be well prepared. The proximate composition of silages differ significantly (P<0.05), higher percentages in CF and Ash were recorded in Treatment A. Dry matter content was also significantly different (P<0.05) with treatment A having the highest DM (97.19%). The CP in treatment D (6.13%) proved superior. RMW and Urea mixtures resulted in silages with highest %NDF, %HEM and Energy. Lowest NDF, ADF, CEL and ADL values were obtained in treatment D. The nutritive quality of treatment D was proved to be higher and thus it is recommended for dry season ruminant feeding.
High-Refresh-Rate Robust State Estimation Based on Recursive Correction for Large-Scale Power Systems

With the growing scale and complexity of power systems, the tracking performance of conventional state estimators has gradually been insufficient to support the reliable operation and control of large networks. This article presents a novel multistage hybrid state estimator (HSE), which is capable of monitoring the large-scale power systems in an accurate and high-refresh-rate manner regardless of whether phasor measurement unit (PMU) data are available. To be specific, the state estimation (SE) results of the whole power system are real-time corrected by the proposed recursive correction strategy using triggering supervisory control and data acquisition (SCADA) measurements and PMU measurements. Furthermore, a modified M-estimation method for the recursive correction strategy is proposed to timely eliminate the impact of bad data and non-Gaussian measurement noises. Comparative case studies conducted on the IEEE 14-bus, 118-bus, and Polish 2383-bus systems validate the effectiveness of the proposed method under various operation conditions.
Stable and salient patch-based appearance model for robust object tracking

As a classic appearance modelling method in object tracking, patch-based approach is believed to own natural superiority in handling local occlusion to its divide-and-conquer philosophy. However, in facing of more severe application conditions, such as heavy occlusion, part deformation and illumination change, traditional patch-based method may also fail due to the lack of sufficient matching patches. To address this problem, temporal stability as well as spatial salience to collaboratively improve patch selection and update schemes, resulting in a robust tracking algorithm for more challenging scenarios are proposed. Both quantitative and qualitative experiments conducted on practical video sequences demonstrate the effectiveness of the proposed method.
Sensitivity Analysis on Triaxiality Factor and Lode Angle in Ductile Fracture

Accuracy of numerical analysis is always important but it is much more important in failure analysis of ductile materials. In ductile materials, the process of removing the effects of necking to obtain stress-strain curve usually need reverse identification methods which are based on iterative finite element analysis. Moreover, triaxiality factor and Lode angle (two parameters that control failure of ductile materials) are obtained from finite element analysis. In this article based on some experiments, the effect of triaxiality factor and Lode angle on the failure strain of X 100 pipeline steel is studied. In order to gain a better understanding of the response of triaxiality and Lode angle to deviations of stress, a sensitivity analysis is done on these two parameters before the start of finite elements ( FE ) analysis. This sensitivity analysis shows that the two parameters are really sensitive to stress deviations in some areas. Three geometries are selected and their FE analysis shows that it is necessary to reduce the element size lower than what is reported in literature in order to get convergence in triaxiality factor and Lode angle in critical areas.
Complexities of Managing a Mobile Phone Ban in the Digitalized Schools’ Classroom

Abstract This longitudinal qualitative study followed a teacher team at an upper secondary school during the implementation of a mobile phone ban during class, which was an initiative the team had jointly decided upon. Data consist of audio-recorded weekly team meetings, during which the teachers discussed their initiative. The teachers’ implementation strategy was to inform the students about the ban at the start of the semester, and to collect their mobile phones before starting each class with the motivation that the ban would improve the learning environment. This strategy failed. Exceptions were made to the ban for several reasons. The collection procedure was cumbersome, time-consuming, and caused negative tensions between teachers and students. The team discussions made it apparent that with the teachers’ consent, the students’ mobile phones were already used as pedagogical tools complementary to other digital technologies in class.
Natural Antimicrobials for Listeria monocytogenes in Ready-to-Eat Meats: Current Challenges and Future Prospects

Listeria monocytogenes, an intra-cellular, Gram-positive, pathogenic bacterium, is one of the leading agents of foodborne illnesses. The morbidity of human listeriosis is low, but it has a high mortality rate of approximately 20% to 30%. L. monocytogenes is a psychotropic organism, making it a significant threat to ready-to-eat (RTE) meat product food safety. Listeria contamination is associated with the food processing environment or post-cooking cross-contamination events. The potential use of antimicrobials in packaging can reduce foodborne disease risk and spoilage. Novel antimicrobials can be advantageous for limiting Listeria and improving the shelf life of RTE meat. This review will discuss the Listeria occurrence in RTE meat products and potential natural antimicrobial additives for controlling Listeria.
Diagrammatic description of a quantum system coupled to strong noise

We study a system-bath description in the strong coupling regime, where it is not possible to derive a master equation for the reduced density matrix by a direct expansion in the system-bath coupling. A particular example is a bath with significant spectral weight at low frequencies. Through an unitary transformation it can be possible to find a more suitable small expansion parameter. Within this approach we construct a formally exact expansion of the master equation on the Keldysh contour. The lowest-order expansion is similar to the so-called $P(E)$-theory or non-interacting blip approximation (NIBA). The analysis of the higher-order contributions shows that there are two different classes of higher-order diagrams. We study how the form of the spectral function affects their convergence.
Causatives and the Empty Lexicon : A Minimalist Perspective

What is the constitution of the meaning of morphemes (lexical concepts)? According to most theories, such meanings have a molecular or holistic internal structure: prototypes, exemplars, semantic networks, complex schemata, scripts, and even classical definitions. Recently, however, contrary opinions have arisen in cognitive science suggesting that lexical concepts are not semantically structured. Let us call this theory “lexical atomism. ” It is argued in this thesis that, once certain conceptual issues have been clarified (Chapter 1), lexical atomism might indeed provide a more suitable alternative (Chapter 2). The theory is nevertheless problematic in that, among other things, most theories of grammar apparently require a decompositional account of the lexicon, and the atomistic version offers too much stipulation rather than explanation. This problem is solved in this thesis by providing a version of the minimalist grammar that encompasses the atomistic lexicon, does not use meaning postulates, and suggests a solution to certain problems in minimalist theory (Chapters 3, 6). It is then shown that this proposal suffices to explain the key properties of causatives without decompositions (Chapter 4). The hypothesis put forward in this study is that causativity is part of the ‘logical syntax’ of a single sentence rather than part of any of its lexical elements.
Effect of the structure of polarimeter characteristic matrix on light polarization measurements

In the paper, we carried out the comparative analysis of three polarimeters among the most usable their variants: (i) Stokes polarimeter based on phenomenological definition of Stokes parameters; (ii) Stokes polarimeter based on the method of four intensities; (iii) Stokes dynamic polarimeter. We show that, since the accuracy in determination of individual Stokes parameter is different for different types of polarimeters, and, therewith, it depends on polarization of input light. All that strongly motivates the choice of type of polarimeter to provide minimum errors in determination of polarization parameters (ellipticity angle e, azimuth β, and degree of polarization P).
Face recognition by sparse representation

In this chapter, we present a comprehensive framework for tackling the classical problem of face recognition, based on theory and algorithms from sparse representation. Despite intense interest in the past several decades, traditional pattern recognition theory still stops short of providing a satisfactory solution capable of recognizing human faces in the presence of real-world nuisances such as occlusion and variabilities in pose and illumination. Our new approach, called sparse representation-based classification (SRC), is motivated by a very natural notion of sparsity, namely, one should always try to explain a query image using a small number of training images from a single subject category. This sparse representation is sought via `1-minimization. We show how this core idea can be generalized and extended to account for various physical variabilities encountered in face recognition. The end result of our investigation is a full-fledged practical system aimed at security and access control applications. The system is capable of accurately recognizing subjects out of a database of several hundred subjects with state-of-the-art accuracy.
Factors that cause women with osteoporosis to fall

ABSTRACT Objectives: To analyze and compare intrinsic and extrinsic factors that cause falls among women receiving treatment for osteoporosis. Subjects and methods: A cross-sectional study of women ≥50 years receiving treatment for osteoporosis. Participants filled out questionnaires (demographic characteristics), and researchers took anthropometric measurements of bone mineral density, handgrip strength (HGS), ankle range of motion (ROM), and gait speed (GS). We also evaluated the Timed Up and Go Test (TUGT), Five Times Sit-to-Stand Test (SST), and Falls Efficacy Scale–International (FES-I) and investigated the extrinsic factors for falls. Results: We included 144 participants (71.6 [8.3 years]), who reported 133 falls. We classified participants into a non-faller group (NFG; 0 falls, n = 71, 49.5%), a faller group (FG; 1 fall, n = 42, 28.9%), and a recurrent-faller group (RFG; more than 1 fall, n = 31, 21.5%). Most patients had an increased risk of falling according to the TUGT, SST, reduced ankle ROM, and GS (P < .005 for all). FES-I was associated with sporadic and recurrent falls. For the multivariate analysis, the number of falls was influenced by the presence of ramps (RR 0.48, 95% CI, 0.26-0.87, P = .015), uneven surfaces (RR 1.6, 95% CI. 1.05-2.43, P = .028), and antislippery adhesive on stairs (RR 2.75, 95% CI, 1.77-4.28, P < .001). Conclusion: Patients receiving treatment for osteoporosis are influenced by intrinsic and extrinsic factors that cause falls. Lower-limb strength and power-discriminated participants at a higher risk of falls, but extrinsic factors varied. Only uneven floors and antislippery adhesives on stairs were associated with increased frequency of falls.
Survival of Patients With Metastatic Rectum Cancer Who Underwent Metastasectomy Following Conversion Chemotherapy Sans Pelvic Radiotherapy: A Turkish Oncology Group Study

Background: The management of early rectal cancer is different from that of colon cancer in terms of radiotherapy (RT) requirements or neoadjuvant treatment. It is not clear how the course of rectal cancer differs from that of the colon in a metastatic setting or how it should be approached differently. This study aimed to evaluate outcomes after combining downsizing chemotherapy (CTx) with rescue surgery. Methods: Eighty-nine patients (57 men and 32 women) diagnosed with metastatic rectal cancer with resectable disease after systemic CTx were included in the study. All patients underwent surgery for the primary mass and metastasis, but none received radiation therapy before or after surgery. Survival curves for overall survival (OS) and progression-free survival (PFS) were generated using the Kaplan-Meier method and compared with the log-rank test for subgroups. Results: The median follow-up time was 28.8 (17.6-39.4) months. During the follow-up, 54 (60.7%) patients died and 78 (87.6%) patients had a PFS event. Cancer relapsed in 72 (80.9%) patients. Median OS was 35.2 (95% CI: 28.5-41.8) months, and median PFS was 17.7 (95% CI: 14.4-21) months. The five-year OS and PFS were 19% and 3.5%, respectively. Male sex (p=0.04) and a better Mandard score (p=0.021) were associated with a longer OS, while obesity was associated with a shorter PFS (p<0.001). Conclusion: Our study is the first to evaluate the effects of metastasectomy after conversion therapy in metastatic rectal cancer independent of colon cancer. As a result of the study, it was seen that the survival after metastasectomy in rectal cancer is worse than the colon cancer data known from previous studies.
Non-Deterministic Inductive Definitions and Fullness

In this paper, we deal with the non-deterministic inductive definition principle NID with the weak notion of a set-generated class introduced by van den Berg and with the strong notion of a set-generated class adopted by Aczel et al. We introduce a principle, called nullary NID, and prove that nullary NID is equivalent to Fullness in a subsystem of the constructive Zermelo-Fraenkel set theory.
Technique Development in Improving the Solubility of Poorly Water Soluble Drugs (BCS II and IV)

Orally active drugs are currently available on the market. API should have adequate solubility and permeability to enhance its therapeutic efficacy when administered orally and obtain optimum bioavailability. Almost 40% of New Chemical Entities had limited solubility or fell into BCS class II and IV. Our review aims to summarize and discuss the development of methods and characterization for increasing the solubility of poorly aqueous drugs from papers published in Google Scholar, NCBI, Science direct, Researchgate, and MDPI. We checked that the methods used such as solid dispersion, cocrystal formation, and coamorphous can increase the solubility of API which has an impact on increasing bioavailability. The successful formation of solid dispersions, cocrystals and coamorphs can be confirmed by the characterization of PXRD, DSC and SEM. In conclusion, drug solubility is an important aspect of pharmacological effects. Drugs with high solubility can provide fast solubility rates and high bioavailability, reducing the dose administered. Solid dispersion, cocrystals, and coamorphous techniques, have succeeded in increasing the solubility of BCS class II and IV drugs.
An electronic portal image-based monte carlo approach to in-vivo dosimetry for intensity modulated radiation therapy

Radical radiotherapy aims to concurrently achieve high tumour control probability and low normal tissue complication probability. Intensity-modulated radiation therapy (IMRT) provides the highly localized radiation dose delivery necessary to reach this goal. As highly conformal techniques become more prevalent, the importance of determining, and accounting for, treatment-planning, patient-setup, and delivery errors, which result in discrepancies between the calculated and actual delivered dose, also increases. Accurate Monte Carlo-based modeling of the equipment overcomes some of these deficiencies. Unfortunately, some sources of delivery errors, such as mis-calibration of the beam-modulating system, cannot be easily incorporated in the model. Use of the amorphous-silicon detector (or EPID, for Electronic Portal Imaging Device), available on many linear accelerators, provides a solution. We hypothesize that non-transit dose images from the EPID provide us with information regarding certain delivery errors. To obtain this information, we first capture non-transit EPID dose images of the treatment field. Next, removal of intra-EPID scatter via iterative Richardson-Lucy deconvolution converts the dose image to a fluence matrix. Projected back to the height of the beam-modulating system, this matrix can be used to modulate the statistical weight of photons in a phase-space file simulating the linear accelerator from the source to this height. The modulated phase-space can be used to run Monte Carlo calculations through simulated phantoms. Assumptions regarding the EPID’s electromechanical behaviour, as well as regarding beam divergence, were validated. This method was compared and validated against our centre’s treatment planning system, for various configurations of the beam-modulating system, in two non-patient phan-
A Pragmatic Study of Gestural Strategies in English Political TV Interviews

Part of the substance of an utterance could be represented by gestures. There are many different perspectives on how gestures, words, and cognition relate to one another and how they could influence communication. Gestures are inferior to words because they communicate no semantic information beyond the linguistic utterances that accompany them. The current study aims to find the main gestural strategies, used by the interlocutors in English political TV Interviews that represent speech acts. It is based on the hypothesis that there are different strategies of gestures used by interlocutors in political TV interviews that represent speech acts. The selected interviews have been analyzed in the light of an eclectic model based on model Kulkarni (2013) and Searle (1979). The first is used for analyzing the main kinds of body movements and types of gesticulation, and the latter for analyzing Searle's classification of speech acts since it is a pragmatic study. The results of the selected interviews have shown that gestural strategies are highly related to the context of situation. Each gesture performs a specific speech act. The interlocutors use gestural strategies to express a wide range of emotions, attitudes, approval, anxiety, disagreement, and affection. The participants in these interviews are equally conscious of their body language and verbal exchanges.
Strengthening Supersolids with Disorder in the Extended Bose-Hubbard Model

The extended Bose-Hubbard model captures the essential properties of a wide variety of physical systems including ultracold atoms and molecules in optical lattices, josephson junction arrays, and narrow band superconductors. It exhibits a rich phase diagram including a supersolid phase where a lattice solid coexists with a superfluid. We use quantum Monte Carlo to map out the phase diagram of the extended Bose-Hubbard model on the simple cubic lattice where the supersolid is expected. We find that the supersolid is very delicate because unexpected phase separated states compete with the supersolid. We add disorder to the extended Bose-Hubbard model and find that the supersolid phase is enhanced by disorder as phase separation is suppressed. Our results establish optimal regimes for observing supersolids and therefore have important implications for their observation.