Miracle-dz/UniFAR-FTUs huggingface dataset:
Multi-domain LED digital twin generation and its corresponding product digital design flow: Delphi4LED state-of-the-art and outlook

How to accelerate the transition to Industry4.E [1] by reducing development time and cost while maintaining product quality? The Delphi4LED European project ECSEL-JU grant #692465 developed a state-of-the-art methodology to establish a standardized approach for generating and integrating multi-domain LED digital twins from measurement data. An LED multi-domain compact model (MDCM), also called digital twin (DT), simulates the working space of an LED with the advantage that it does not include LED vendor proprietary information. This allows LED vendors to share them with end-users without disclosing their sensitive intellectual property. Major steps consist of 1) characterizing the physical LED in a standardized way that combines thermal/electrical/optical tests in accordance with combined testing standards (JESD 51-51, JESD 51-52, JESD 51-14, CIE 225:2017); 2) reporting the characterized sets of data (Current- Voltage-luminous Flux (IVL) and thermal impedance characteristics) in a standardized way; 3) generating the MDCM LED from the set of data; 4) coupling the MDCM LED to a 3D luminaire CFD (computational fluid dynamics) model. The LED package MDCM consists of 1) a boundary condition-independent compact thermal model (CTM) of the physical LED package and 2) a multi-domain opto-electrical model that describes the LED operation close to the chip level. The former can be created with the help of measured transient thermal impedance, Zth(t), of the LED package, while the parameters of a opto-electrical model can be identified from the isothermal IVL characteristics of the LED device. The paper presents the state-of-the-art LED digital twin creation approach, the importance of standardization and the latest results in terms of accuracy and calculation time gains for a LED luminaire level simulation.
Does the reform of public hospitals' payment system increase the pay of medical personnel? A nationwide cross-sectional study

Background The reform of public hospitals' payment system (RPHPS) is the focus of medical reform in China. The current medical personnel payment system was formulated under a framework including the whole public sector, and this cannot meet the demands of necessary reform. In 2017, the government piloted the RPHPS to raise the pay of medical personnel and mobilize their work enthusiasm. Here, we examine whether the RPHPS provides a way to influence the pay of medical personnel and examine the factors determining this pay. Methods This study used data from a cross-sectional survey of 699 public hospitals across 21 provinces of China in 2017, the China Public Hospitals Pay Reform Survey. We used a coarsened exact matching method and hierarchical linear analysis to enhance the comparability between groups. A total of 178,622 medical personnel were included in our study. Results We found that the RPHPS was significantly associated with total annual pay and annual performance pay. Those who worked in the treatment group had significantly higher total annual pay and annual performance pay than those in the control group. The pay of medical personnel was strongly associated with the average salary of an urban worker and the hospital type, and their gender, age, education status, work characteristics, position, professional titles, seniority in years and departments. Conclusion There was a strong relationship between the implementation of the RPHPS and the pay of medical personnel. From a policymaker perspective, this shows that there may be value in further promoting the development of the payment system in public hospitals. The government should scale up the piloted areas for RPHPS and increase the total salary and the total performance-based wage-control level of public hospitals to reflect the value of the technical and labor services provided by medical personnel.
Clinical Evaluation of Intra-articular Injections of Platelet Rich Plasma Versus Dextrose Prolotherapy for Management of Temporomandibular Joint Internal Derangement

Aim: The aim of the study was to evaluate the clinical effect of intra-articular injections of platelet rich plasma for management of TMJ internal derangement through comparative study with dextrose prolotherapy. Patients and Methods: included 87 joints in 45 adult patients complaining pain, clicking in the Temporo-mandibular joint (internal derangement), pre-operative MRI was done for all patients with further clinical, radiographic as well as TMJ examination. Patients were divided into three equal groups randomly. Group I: (study group) composed of 15 patients where 1ml of platelet rich plasma was injected intra-articular (once) Group II: (study group) composed of 15 patients where 1ml of platelet rich plasma was injected intra-articular (twice) with one month interval Group III: (control group) composed of 15 patients where dextrose prolotherapy was injected (4 times) at 2 weeks, 4 weeks and 6 weeks intervals over a total of 12 weeks. Clinical assessment was done including MIO, pain, deviation and clicking. Results: statistically analysis of this study showed that group I, III showed the highest MIO values as well as VAS scores in the 3,6 and 12 months, however group II showed the lowest MIO in the same follow up period. Conclusions: PRP and Prolotherapy are successful techniques for treatment of symptoms related to internal derangement of TMJ. INTRODUCTION Internal derangement of Temporo-mandibular joint (TMJ) in which disc displaced from its normal position with mandibular condyle and articular portion of temporal bone (1). TMJ internal derangement is characterized by intra-articular disc displacement resulting in popping or clicking sounds. The displacement of articular disc does not always cause a mechanical obstruction. (2) Those conditions may be with or without pain. Among causes are trauma, which results in a sudden disc displacement, or para functional habits which ends up in increased friction, degenerative changes of articular surfaces and gradual displacement of the disc (2). The aim of the present study was to evaluate the clinical effect of intra-articular injections of platelet rich plasma for management of temporomandibular joint internal derangement through comparative study with dextrose prolotherapy. DOI: 10.21608/dsu.2021. 24255.1028 Manuscript ID: DSU-2002-1028
Effect of iron ore tailings on the plasticity and compaction properties of selected tropical soils

The workability of any soil, when used as a construction material, is greatly affected by its plasticity and compaction characteristics. This research investigates the effect of iron ore tailings (IOT) on the plasticity and compaction properties of lateritic soil (LTS) and black cotton soil (BCS). Atterberg limit and compaction test using three energies, British standard Light, BSL, British standard Heavy, BSH, and West Africa standard, WAS were carried out. These tests were conducted on mixed ratios of 0, 2, 4, 6, 8, and 10 % of IOT mixed each with LTS and BCS separately. A Statistical conceptual model was developed using Minitab R15 to predict the values of the maximum dry density (MDD) and optimum moisture content (OMC) from the computed laboratory results. Analysis was then carried out on the predicted results using origin pro version 8 to test the efficacy of results obtained. The result of specific gravity test shows increase with IOT concentration. An improvement on the plasticity of the modified soil was noted. The liquid limit for both LTS and BCS decreased with increasing IOT concentration. Values drop from 43.4 to 42.7% for LTS and 56 to 52.6% for BCS at 0 and 10% of IOT content, respectively. Plastic limit increased with increasing IOT concentration for LTS and decreased for BCS. In the case of the Plasticity index, values decreased for LTS and marginally increased for BCS treated with IOT. MDD values increased and thereafter drop for LTS treated with IOT while for BCS values increased from natural up to 10% IOT content. OMC values increased for LTS treated with IOT and decreased for BCS treated with IOT. The effectiveness of the developed model was validated using the values of the correlation coefficient obtained from the statistical analysis, which showed a solid relationship between predicted and measured values. Plasticity index values obtained for IOT stabilized BCS did not meet up to the standard requirement when used as a sub-base and base course material respectively. However, the treatment of LTS and BCS with 8-10% IOT improved the soil properties and can be used for pedestrian walkways.
Decision‐making competence and cognitive abilities: Which abilities matter?

Funding information Marianne and Marcus Wallenberg Foundation, Grant/Award Number: 2014-0173 Abstract Decision-making competence is a skill that is associated with numerous positive life outcomes. Even though multiple cognitive abilities have been shown to predict decision-making competence, few studies have incorporated a large test battery tapping into several cognitive abilities concurrently in the same models. The current paper presents a study that sought to investigate which cognitive abilities predicted overall decision-making competence in adults using hierarchical regression analysis. A cognitive test battery, comprising abilities such as general intelligence, executive functions, numeracy, visuospatial ability, and time perception, was administered to 182 participants. Results indicate that both general intelligence, which was consistently the strongest predictor, and numeracy contributed independently to overall decision-making competence. Executive functions did predict overall decision-making competence, while all predictors were included in the models. A novel finding concerns the relationship between time perception and decision-making competence. The complementary roles of these cognitive abilities are discussed.
Tertiary Students’ Perspectives on Online Learning During Emergency Remote Teaching in the Context of Covid-19: A Case Study

In the midst of a global pandemic, educational institutions in Vietnam were forced to move all courses online. Under that circumstance, emergency remote teaching (ERT) is a conceivable alternative for onsite learning. This paper provides an insight into one specific case study of a university in Ho Chi Minh City, Vietnam. The study employed a Likert scale survey, open-ended questions, and a semi-structured interview to examine undergraduate students' perspectives and their engagement (N = 255) in the context of ERT amid COVID-19. Our findings illustrated opportunities and obstacles entailing online video-conferencing lessons with multiple modalities in language teaching and learning. The results showed a rather skeptical view towards online language learning due to the lack of students - student and student-instructor interactions. The paper ends with some implications to improve students' engagement in distance teaching and learning context.
A stochastic analysis approach for marine riser’s cross-flow/in-line VIV under heave-induced parametric vibration

ABSTRACT This study proposes a theoretical analysis model to analyse the marine riser's coupled cross-flow/in-line vortex induced vibration (VIV) under heave-induced time varying parametric vibration. Combining with the linear-wave theory, the stochastic phase spectrum method is used to simulate the stochastic multi-frequency parametric excitation in the time-domain to reproduce the real sea conditions. The nonlinearities are considered to capture the geometrical coupling of cross-flow/in-line displacements excited by hydrodynamic lift/drag forces and the wake-riser interaction. A generally good agreement between the proposed approach and other analyses can be observed. A parametric study is conducted, it is found that the drag coefficient is of significance for the riser's VIV, and the lift coefficient is affected by vortex shedding. The wave form, in terms of wave height and wave period, need to be considered with caution in design of a riser to avoid the occurrence of resonance under stochastic parametric excitation.
Photonic microwave and RF channelizers based on Kerr micro-combs

We review recent work on broadband RF channelizers based on integrated optical frequency Kerr microcombs combined with passive micro-ring resonator filters, with microcombs having channel spacings of 200GHz and 49GHz. This approach to realizing RF channelizers offers reduced complexity, size, and potential cost for a wide range of applications to microwave signal detection.
Shade alters the growth and architecture of tropical grasses by reducing root biomass

Tropical grassy biomes have variable tree cover and are often characterized by a flammable grassy ground layer where the dominating grass species have strategies to persist and proliferate with frequent fire. However, there is limited understanding of how grass growth and flammability traits respond to light availability. We experimentally grew 14 grass species characteristic of the Malagasy Central Highlands for one year with four treatments of light exclusion ranging from 0 – 60%. Eight plant functional traits and four leaf flammability traits were measured: plant height, bulk density, aboveground biomass, belowground biomass, ratio of root to shoot biomass, specific leaf area, leaf length, leaf width, leaf heat release capacity, temperature of maximum decomposition, total heat release and peak heat release rate. Belowground biomass, the ratio of root to shoot biomass, and bulk density were all negatively affected by decreasing light availability. Surprisingly, aboveground biomass showed no significant change with changing light availability, although there was a trend toward shorter plants in low light. At a leaf level, declining light availability increased specific leaf area, leaf length, and leaf width. In terms of leaf flammability, of the four traits measured, unexpectedly, only leaf total heat release was significantly positively related to declining light availability. These results suggest field alterations in grass flammability may be primarily related to plant architecture and microclimates. The shifts in allometry and substantial reduction in belowground biomass suggest that grasses would be rapidly lost from shaded environments with a diminished competitive capacity to resprout.
Magnetohydrodynamics fluid flow passing through a sliced magnetic sphere influenced by mixed convection

We consider mathematical modelling of magnetohydrodynamics viscous fluid flow when passing a magnetic sliced sphere in which the effect of mixed convection included. We therefore develop dimensional governing equations from the law of the mass conservation, momentum conservation, and energy equation. The governing equations further are converted into non-dimensional equations by using non-dimensional variables. Further, by using similarity equations in which stream function is included, we obtain non-linear system equation. This non-linear equation is solved numerically by using Keller-Box scheme. We further take numerical computation to analyze velocity and temperature on front of the lower stagnation of the magnetic sliced sphere when various parameters are included, such as Prandtl number, sliced angle, magnetic parameter and mixed convection parameter. We obtain numerical solution that when magnetic parameter increases then profile of fluid velocity decreases but the profile of fluid temperature increases. The mixed convection parameter increases then the velocity profile of the fluid increases but the temperature profile of the fluid decreases. The Prandtl number parameter increases then both of the velocity and temperature profiles of the fluid decreases, respectively. The sliced angle parameter increases then the fluid velocity profile increases but the fluid temperature profile decreases.
Cardiovascular effects of continuous rate infusion of lignocaine as an adjunct to general anaesthesia for intestinal surgery in cattle

The study was carried out in 12 clinical cases of cattle to assess the cardiovascular effects of intravenous continuous rate infusion of lignocaine as an adjunct to general anaesthesia for intestinal surgeries. The animals were indiscriminately selected and categorized equally into two groups. All the animals were premedicated with dexmedetomidine and butorphanol tartrate at the dose rate of 0.5 µg per kg and 20 µg per kg body weight i.v. respectively. After five minutes of premedication, induction of anaesthesia was achieved with double drip solution containing ketamine hydrochloride 2 mg and guaifenesin 50 mg per mL respectively, administered i.v. “to effect”. Anaesthesia was maintained with isoflurane in all the animals. In group II animals ten minutes prior to skin incision, slow intravenous lignocaine bolus at the dose rate of 2 mg per kg and continuous rate infusion at the dose rate of 50 µg per kg per min was delivered through volumetric infusion pump. There was no significant difference in cardiovascular parameters noticed between the group which signifies that intravenous lignocaine at this dose in anaesthetised cattle is cardiovascular dynamic.
Effects of dietary inactivated probiotics on growth performance and immune responses of weaned pigs

Abstract This experiment was performed to verify whether dietary heat-killed Lactobacillus rhamnosus (LR) improves growth performance and modulates immune responses of weaned pigs. Ninety-six weaned pigs ([Landrace × Yorkshire] × Duroc; 6.95 ± 0.25 kg body weight [BW]; 28 d old) were randomly allocated to four treatments: 1) a basal diet without heat-killed LR (CON), 2) T1 (CON with 0.1% heat-killed LR), 3) T2 (CON with 0.2% heat-killed LR), and 4) T3 (CON with 0.4% heat-killed LR). Each treatment had six pens with four pigs (6 replicates per treatment) in a randomized completely block design. The heat-killed LR used in this study contained 1 × 109 FU/g of LR in a commercial product. Pigs were fed each treatment for four weeks using a two-phase feeding program to measure growth performance and frequency of diarrhea. During the last week of this study, all diets contained 0.2% chromic oxide as an indigestible marker. Fecal sampling was performed through rectal palpation for the consecutive three days after the four adaptation days to measure apparent total tract digestibility (ATTD) of dry matter, crude protein, and gross energy (GE). Blood sampling was also performed on day 1, 3, 7, and 14 after weaning to measure immune responses such as serum tumor necrosis factor-α (TNF-α), transforming growth factor-β1 (TGF-β1), C-reactive protein (CRP), and cortisol. The heat-killed LR increased (p < 0.05) growth rate, feed efficiency, and ATTD of GE for overall experimental period compared with CON, but reduced (p < 0.05) post-weaning diarrhea. In addition, pigs fed diets contained heat-killed had lower concentrations of serum TNF-α (d 7; p < 0.05), TGF-β1 (d 7; p < 0.10), and cortisol (d 3 and 7; p < 0.05) than pigs fed CON. In conclusion, dietary heat-killed LR improved growth rate, modified immune responses of weaned pigs, and alleviated post-weaning diarrhea.
Optimizing Micropollutant Removal by Ozonation; Interference of Effluent Organic Matter Fractions

ABSTRACT Ozonation for micropollutant removal from wastewater treatment plant effluent is energy and cost-intensive because of competition between background organic matter and micropollutants. This study aims to elucidate the interference of different organic matter fractions during the ozonation of micropollutants. Wastewater treatment plant effluent was fractionated using membranes and XAD-8 resin. All membrane and resin fractions were spiked with 18 micropollutants (2 µg/L) and ozonated with 0.25, 0.5 and 1 g O3/g TOC. Results show that these fractions differ in their interference with the ozonation of micropollutants. Interference was lower in the smallest size fraction (<1 kDa) than in all other fractions for micropollutants with low and medium ozone reactivity. The hydrophobic neutrals and hydrophilics resin factions showed a high interference for ozonation of micropollutants with medium and high ozone reactivity, respectively. The four parameters that were analyzed (specific UV absorbance at 254 nm, fluorescence, chemical oxygen demand and nitrite) could not elucidate the differences in micropollutant removal. Still, we conclude that understanding the type of organic matter present in the matrix, is essential to optimize micropollutant ozonation and other tertiary micropollutant removal treatments.
BOND AS A SAFE HAVEN DURING MARKET CRASH: EXAMINATION OF COVID-19 PANDEMIC IN ASEAN-5

The central aim of this paper is to examine the effectiveness of corporate bonds and government bonds against the stock price fluctuation in ASEAN-5 countries (Indonesia, Malaysia, Philippines, Thailand and Singapore). Highlighting an important event of COVID-19, we investigate whether bonds provide protection by utilizing Q-REG method. The noteworthy finding is that bonds consistently act as a hedge for Malaysia and Philippines, while regarded as a diversifier for Indonesia’s capital market. However, this study observed that corporate bonds successfully become a strong safe haven for Thailand and Singapore capital market. Similar result was also found for Singapore government bonds which provides a valuable return during the pandemic of COVID-19.
Assessment of microbiological and physico-chemical characterıstics of water samples in households of Bangalore city, Karnataka, India

Access to safe drinking water is one of the basic human rights and is essential to human health. The present study investigated the concentration of pathogenic microbial flora and health risk in drinking water samples in households of Bangalore city, Karnataka, India. The samples were analysed for microbiological and physico-chemical parameters. In this study, most probable number and heterotrophic plate count were used to assess the microbial load. The results of the study show that most of the household water samples were contaminated with the presence of coliform bacteria. The dominant bacterial species are Escherichia coli, Salmonella, Shigella, Klebsiella and Enterobacter. The bacteria belonging to the family Enterobacteriaceae showed maximum occurrence in water samples. The overall results of the study showed that the consumption of such contaminated drinking water at the end-user point may cause potential health hazards to the inhabitants.
A Provable and Secure Patient Electronic Health Record Fair Exchange Scheme for Health Information Systems

In recent years, several hospitals have begun using health information systems to maintain electronic health records (EHRs) for each patient. Traditionally, when a patient visits a new hospital for the first time, the hospital’s help desk asks them to fill in relevant personal information on a piece of paper and verifies their identity on the spot. This patient will find that many of her personal electronic records are in many hospital’s health information systems that she visited in the past, and each EHR in these hospital’s information systems cannot be accessed or shared between these hospitals. This is inconvenient because this patient will again have to provide their personal information. This is time-consuming and not practical. Therefore, in this paper, we propose a practical and provable patient EHR fair exchange scheme for each patient. In this scheme, each patient can securely delegate the information system of a current hospital to a hospital certification authority (HCA) to apply migration evidence that can be used to transfer their EHR to another hospital. The delegated system can also establish a session key with other hospital systems for later data transmission, and each patient can protect their anonymity with the help of the HCA. Additionally, we also provide formal security proofs for forward secrecy and functional comparisons with other schemes.