Miracle-dz/UniFAR-FTUs huggingface dataset:
Spherical Shaped                                                        (                                A                 g                 −                 F                                    e                   3                                                     O                   4         

The main concern is to explore an electro-magneto hydrodynamic (EMHD) squeezing flow of ( A g − F e 3 O 4 / H 2 O ) hybrid nanofluid between stretchable parallel Riga plates. The benefits of the use of hybrid nanofluids, and the parameters associated to it, have been analyzed mathematically. This particular problem has a lot of importance in several branches of engineering and industry. Heat and mass transfer along with nonlinear thermal radiation and chemical reaction effects have also been incorporated while carrying out the study. An appropriate selection of dimensionless variables have enabled us to develop a mathematical model for the present flow situation. The resulting mathematical method have been solved by a numerical scheme named as the method of moment. The accuracy of the scheme has been ensured by comparing the present result to some already existing results of the same problem, but for a limited case. To back our results further we have also obtained the solution by anther recipe known as the Runge-Kutta-Fehlberg method combined with the shooting technique. The error analysis in a tabulated form have also been presented to validate the acquired results. Furthermore, with the graphical assistance, the variation in the behavior of the velocity, temperature and concentration profile have been inspected under the action of various ingrained parameters. The expressions for skin friction coefficient, local Nusselt number and local Sherwood number, in case of ( A g − F e 3 O 4 / H 2 O ) hybrid nanofluid, have been derived and the influence of various parameters have also been discussed.
On the accuracy of oscillator strengths in the near-infrared for the Gaia space mission

We have tested the accuracy of oscillator strengths and wavelengths of some spectral lines (FeI, Si I, Ca II) of interest for the Gaia space mission in the near infrared (848-875 nm). The method used in this work consists of fitting synthetic lines calculated using a 3D hydrodynamical simulation of the solar surface with a high-resolution solar spectrum. We found good agreement when atomic data measured in the laboratory were used.
Preparation and characterization of SnO2 films for sensing applications

SnO2 thin films for gas sensing applications were deposited by RF sputtering in a mixture of oxygen and argon. The morphology, structure and composition of the SnO2 films were analysed by XRD, SEM and XPS. SnO2 thin films showed a crystalline structure with a submicron particle size of 200 nm. The electronic structure of the film surface was elucidated by analysis of the photoelectron core level and valence band spectra of Sn.
A 0.2-V 30-MS/s 11b-ENOB Open-Loop VCO-Based ADC in 28-nm CMOS

We present a 0.2-V open-loop voltage-controlled oscillator (VCO)-based analog-to-digital converter (ADC) intended for IoT wireless sensor nodes. A resistor-based frequency-tuning scheme helps in mitigating odd-order harmonic distortion induced by the VCO nonlinear transfer characteristic. It also provides a reconfigurable input range, allowing it to exceed the supply by <inline-formula> <tex-math notation="LaTeX">$2.5{\times }$ </tex-math></inline-formula> (single-ended), and maintaining tolerance against ±10% supply variations. Latch, flip-flops, and logic gates within the frequency-to-digital converter are designed for minimum propagation delays, allowing sampling at 30 MS/s. The ADC is implemented in 28-nm CMOS and achieves a peak SNDR of 68 dB, equivalent to an ENOB of 11, over a 61-kHz bandwidth with a 1-<inline-formula> <tex-math notation="LaTeX">$\text{V}_{\mathrm{pp}}$ </tex-math></inline-formula> input differential sinewave. It consumes 7 <inline-formula> <tex-math notation="LaTeX">${\mu }\text{W}$ </tex-math></inline-formula>, resulting in a state-of-the-art Walden and Schreier FoM of 27.8 fJ/c-s and 167.4 dB, respectively.
GaN HEMT power amplifier for radar waveforms

The paper presents the amplifier for application in an active electronically scanned array (AESA). For design purposes both time- and frequency domain simulations were carried out. The developed amplifier achieved more than 9W of output power at a maximum efficiency of 57% for 9.5 GHz and small-signal gain |S21|>11dB over 9-10 GHz frequency range. Furthermore, the potential of Polish GaN HEMT technology based on domestic, semi-insulating, bulk GaN substrate fabricated by Ammono.
An Accurate Analysis of Phase Noise in CMOS Ring Oscillators

We present an accurate analysis of phase noise in ring oscillators, where each stage in the ring is a CMOS inverter loaded by a capacitance. Closed-form phase noise expressions are obtained in both 1/<inline-formula> <tex-math notation="LaTeX">${f} ^{{2}}$ </tex-math></inline-formula> and 1/<inline-formula> <tex-math notation="LaTeX">${f} ^{{3}}$ </tex-math></inline-formula> offset frequency regions, displaying an excellent agreement with numerical simulations using either ideal Verilog-A MOS models (allowing theoretical predictions to be tested with exactly the same assumptions under which they were derived), or commercial BSIM4 MOS models.
Dominances stochastiques pour deux classes de fonctions d'utilité : concaves et convexes

On admet deux situations possibles par rapport a un attribut: un decideur a soit de l'aversion, soit du gout pour le risque-dependant du fait que la fonction d'utilite est continue et concave ou continue et convexe. L'objectif de cet article est de developper la notation des dominances stochastiques de troisieme degre, complementaires pour deux classes de fonctions d'utilite
Communications of the Association for Information Systems

: This paper presents an overview and history of the knowledge, innovation, and entrepreneurial systems (KIES) track and the knowledge and related systems research community at the Hawaii International Conference on System Sciences (HICSS). This community began as a task force that examined organizational memory in HICSS-27. It has since evolved into a mini-track, a research cluster, and, finally, a full research track that encompasses research knowledge, innovation, and entrepreneurial systems. In this paper, we acquaint knowledge system researchers with a research community that has leveraged HICSS to develop a rich history of high-quality scholastic inquiry in the knowledge system, knowledge management, innovation systems, entrepreneurial systems
Parametric PSpice Circuit of Energy Saving Lamp Emulating Current Waveform

Energy-saving lamps are equipped with converters enabling high energy efficiency at the cost of injecting very distorted currents on the mains. The problem is more complex in the emerging smart-lighting scenario where these lamps are also used to perform additional tasks. Harmonics mitigation at the lamp level is expensive; consequently, an optimal lighting system design aiming at reducing both costs and current distortion of the whole lighting system is necessary. A tool able to emulate the current drawn from the lamps is necessary for optimal design. Such a tool has also to consider the fluctuations of the voltage on the mains that usually occur throughout the day. In this perspective, a parametric PSpice circuit is proposed and the netlist is reported in this work. Moreover, the simple procedure to be adopted for computing the parameters is also described. The validation has confirmed the ability of the proposed circuit in emulating the current drawn from various CFLs and LED lamps under different supplying voltage.
Funtional Contribution of Medial Pre-Cortex to Visuo-Spatial Transformation.

condition involved the alignment of the principal axis of the stimulus with the vertical (see Figure 2). An interleaved block design was used consisting of four blocks of the MR condition, and four blocks of the baseline condition. The blocks were interleaved so that each subject received one block of the MR condition followed by one block of the baseline condition. The stimuli were an asymmetric set of 2D novel forms[21] – see Figure 2. Co-registration and realignment of the MRI data were done using TINA software (www.tina-vision.net). The remaining analyses were conducted using SPM99 (http://www.fil.ion.ucl.ac.uk/spm). The data were normalised to the Montreal Neurological Institute (MNI) template and smoothed with a 10mm 3D Gaussian kernel. A random effects model was used to analyse the data. The inputs for this were the individual contrast images for the ‘MR - baseline’ contrast. A height threshold of p < 0.001 uncorrected, with a minimum of 15 adjacent suprathreshold voxels, was applied. For predicted areas of activation a small volume correction was applied to correct for multiple comparisons. Results are reported in the MNI coordinate system. Since target stimuli were seen more frequently in the 0
Comparison of forward lean during Bulgarian split squat at high and low box heights

This study examined the difference between forward lean while performing the Bulgarian Spilt Squat at different box heights of 40 cm and 20 cm. The study also compared the maximal force output of the front foot during the BSS at the different heights. Fifteen male athletes (standing height=180.73 ± 6.67 cm; mass= 80.45 ± 7.63 kg; age=18.55 ± 0.69 years) volunteered to complete the study. The participants performed three repetitions of each leg at two different heights of the Bulgarian Split Squat with 30% of self-reported back squat 1RM. Participants stood on a force plate to report maximal force during each repetition while being recorded to generate a forward lean angle. The box height of 20 cm generated lower force output (1121.86 ± 197.11 N) and a smaller degree of forward lean (19.38 ± 1.21 o) compared to the box height of 40 cm. The box height of 40 cm resulted in greater significant force output of 1163.15 ± 194.44 N and a greater significant forward lean of 27.56 ± 1.86 o. COMPARISON OF FORWARD LEAN DURING BULGARIAN SPLIT SQUAT AT HIGH AND LOW BOX HEIGHTS A Thesis Submitted In Partial Fulfillment of the Requirements for the Degree Master of Arts Craig Konrardy University of Northern Iowa December 2017
Seismic vulnerability assessment of historic centers: description of a predictive method and application to the case study of scanno (Abruzzi, Italy)

ABSTRACT In this article, a predictive model for the seismic vulnerability assessment of old Italian historic centers is presented through its direct application to a meaningful case study, the historic center of Scanno, in Abruzzi, Italy. The proposed method is calibrated on the basis of the observations carried out on similar historic centers hit by the 2009 L’Aquila earthquake and is applied in order to provide likely damage scenarios by means of fragility curves. The method is based on the evaluation of a limited number of structural and typological parameters that can be obtained by simple and rapid inspections on buildings. In addition, it is conceived in order to provide useful information on the most effective anti-seismic strategies to be implemented on urban scale for pursuing a global mitigation of the seismic risk and for the application of suitable risk reduction policies. The final aim of the article is to give an applicative vision of the method, by providing instructions on how to judge the features of the buildings that are influential on their seismic behavior, as well as by showing the potentiality of the method itself in providing likely damage scenarios, also with the support of GIS-based representations.
An Improved Damping Method for Virtual Synchronous Machines

A virtual synchronous machine (VSM) approach is proposed to integrate inverter-based distributed energy resource units into the power and energy system. VSMs emulate the model of a synchronous machine in the inverter's controller. Among different aspects, emulating the damper windings or devising an alternative damping strategy is critical. The damper has a major stabilizing effect against system disturbances and change. An effective damping method to improve the VSM responses is proposed in this paper. It is shown that the proposed method offers two degrees of freedom, which allows flexible adjustment of response damping without compromising the inertial response. Mathematical analysis, comparative simulations, and experimental results are presented to prove and validate this claim.
Urinary Podocyte Excretion Predicts Urinary Protein Selectivity and Renal Prognosis

Background Urinary podocyte excretion is related to a reduction in glomerular podocyte numbers, glomerulosclerosis, and urinary protein selectivity. To elucidate the role of urinary podocytes in proteinuria and renal prognosis and to identify the factors that cause podocyte detachment, we examined urinary podocytes in 120 renal biopsy patients. Methods Podocytes were identified in urinary sediments stained with fluorescent-labeled anti-podocalyxin antibodies in ten high power fields. The amounts of protein bands, separated by SDS-polyacrylamide gel electrophoresis, were calculated using an image software program and the correlation with urinary podocytes was analyzed. Podocyte surface pores were observed using a low-vacuum scanning electron microscope. The renal prognosis, including induction of hemodialysis or 30% reduction in eGFR, was investigated. Results Urinary podocyte excretion showed a higher positive correlation with albumin excretion compared to IgG, prealbumin, and transferrin. There were no significant correlations between urinary podocyte count and low molecular weight proteins, including β2-microglobulin and α1-microglobulin. The number of podocyte surface pores was positively correlated with proteinuria, suggesting enhanced albumin transcytosis. The hemodynamic pressure on the glomerular capillary wall, including products of pulse pressure and pulse rate (water hammer pressure), was positively correlated with urinary podocyte excretion. Urinary podocyte excretion and Tamm–Horsfall protein (THP) were independent risk factors for renal prognosis but were not related to response to treatment. Conclusion Urinary podocyte excretion was correlated with urinary albumin excretion, indicating specific albumin transport by podocytes. Podocytes were detached from the glomerular capillaries by water hammer pressure and THP was involved in the renal prognosis.
Review of industry reports on EU priority tobacco additives part A: Main outcomes and conclusions

The European Union Tobacco Products Directive (EU TPD) mandates enhanced reporting obligations for tobacco manufacturers regarding 15 priority additives. Within the Joint Action on Tobacco Control (JATC), a review panel of independent experts was appointed for the scientific evaluation of the additive reports submitted by a consortium of 12 tobacco manufacturers. As required by the TPD, the reports were evaluated based on their comprehensiveness, methodology and conclusions. In addition, we evaluated the chemical, toxicological, addictive, inhalation facilitating and flavoring properties of the priority additives based on the submitted reports, supplemented by the panel’s expert knowledge and some independent literature. The industry concluded that none of the additives is associated with concern. Due to significant methodological limitations, we question the scientific validity of these conclusions and conclude that they are not warranted. Our review demonstrates that many issues regarding toxicity, addictiveness and attractiveness of the additives have not been sufficiently addressed, and therefore concerns remain. For example, menthol facilitates inhalation by activation of the cooling receptor TRPM8. The addition of sorbitol and guar gum leads to a significant increase of aldehydes that may contribute to toxicity and addictiveness. Titanium dioxide particles (aerodynamic diameter <10 µm) are legally classified as carcinogenic when inhaled. For diacetyl no report was provided. Overall, the industry reports were not comprehensive, and the information presented provides an insufficient basis for the regulation of most additives. We, therefore, advise MS to consider alternative approaches such as the precautionary principle.
Under Pressure

The iterative cycles used in agile software development create a series of deadlines for project teams. We investigate the optimal iteration length under behavioral conditions for agile software projects. Based on system dynamics simulation, we argue that both very long (as in sequential development) and very short (monthly) iterative cycles create huge and disruptive fluctuations in schedule pressure experienced by the team. These lead to poor performance in terms of quality, as well as costs and time compared with optimal iterative cycles of two to three months. The monthly cycles used in many agile practices might be too short to ensure optimal performance.
Formal and Applied AdS/CFT

The gauge/gravity duality is a powerful mathematical tool that relates stronglyinteracting gauge theories with large numbers of colors to classical gravitational theories with negative cosmological constant. This thesis uses the gauge/gravity duality in two ways. The first half of the thesis explores the notion of a holographic p-wave superconductor/superfluid. On the gauge theory side there is an SU(2) global symmetry that is explicitly broken to U(1) by turning on a charge density. This U(1) symmetry is in turn spontaneously broken when the ratio between temperature and charge density is smaller than a critical value. The spontaneous breaking of the U(1) symmetry is accompanied by a spontaneous breaking of rotational symmetry. On the gravity side the SU(2) and U(1) symmetries are gauged, and the symmetry-broken backgrounds are charged black branes surrounded by clouds made of off-diagonal gauge bosons. The gauge/gravity duality is used to compute various critical exponents and transport coefficients related to the phase transition between the U(1) symmetry-broken and symmetry-restored phases. The second half of this thesis builds on the recent progress on using the technique of localization for computing supersymmetry-protected quantities in gauge theories with N ≥ 2 supersymmetry on the three-sphere. Using this technique, the infinite-dimensional path integrals of these theories were reduced to finite-dimensional multi-matrix integrals. In the second half of this thesis these multi-matrix integrals are computed approximately for the case of effective gauge theories on M2-branes probing various Calabi-Yau singularities. The answers match the predictions of the gauge/gravity duality. In particular, they reproduce the N scaling of the number of degrees of freedom on N coincident M2-branes.
Effect of intra-session exercise sequence of an 8-week concurrent training program on the components of physical fitness in recreationally trained young adults

ABSTRACT This study aimed to determine the effect of the intra-session exercise sequence of a concurrent training programme on the components of health-related physical fitness. Twenty-four healthy young adults were allocated into two different groups differing only in the exercise order to conduct an 8-week intra-session concurrent training programme consisting of three sessions of 60–90 minutes (180–270 min/week), with all-out running sprint intervals, back squat, and bench press endurance and resistance exercises (i.e., ET+RT and RT+ET). The 8-week intra-session concurrent training programme overall improved all the components of physical fitness regardless of the exercise sequence. However, ET + RT and RT + ET groups reported moderate and small improvements for squat jump (ET + RT: 3.82 cm [1.11 to 6.53 cm]; RT + ET: 0.31 cm [−1.72 to 2.33 cm]), countermovement jump (ET + RT: 3.76 cm [1.43 to 6.08 cm]; RT + ET: 2.07 cm [−0.03 to 4.17 cm]) and maximum oxygen uptake (ET + RT: 4.75 ml/kg/min [1.14 to 8.35 ml/kg/min]; RT + ET: 1.66 ml/kg/min [−0.89 to 4.21 ml/kg/min]), respectively. Therefore, greater lower-body power and cardiorespiratory fitness gains might be induced following the ET + RT sequence.
Cross-sensitivity of hydrogen sensors to relative humidity

The influence of the relative humidity of hydrogen-air mixture on the most commonly used types of hydrogen sensors, based on catalytic combustion, metal oxide semiconductor, and thermal conductivity is discussed, and compared. The cross-sensitivity of these types of hydrogen sensors to relative humidity is discribed and exemplified with experimental data, as well as approaches to mitigate that cross-sensitivity are
Poststroke motor, cognitive and speech rehabilitation with brain–computer interface: a perspective review

Brain–computer interface (BCI) technology translates brain activity into meaningful commands to establish a direct connection between the brain and the external world. Neuroscientific research in the past two decades has indicated a tremendous potential of BCI systems for the rehabilitation of patients suffering from poststroke impairments. By promoting the neuronal recovery of the damaged brain networks, BCI systems have achieved promising results for the recovery of poststroke motor, cognitive, and language impairments. Also, several assistive BCI systems that provide alternative means of communication and control to severely paralysed patients have been proposed to enhance patients’ quality of life. In this article, we present a perspective review of the recent advances and challenges in the BCI systems used in the poststroke rehabilitation of motor, cognitive, and communication impairments.
A comparison of face‐to‐face and fully online problem‐based learning: Student results and staff experiences, 2014–2020

Abstract Issue addressed Problem‐based learning (PBL) is a student‐directed pedagogy that promotes critical thinking, self‐directed learning and communication skills essential for health promotion students and practitioners. This paper reports on student results, student evaluation and staff experience of PBL in the face‐to‐face and fully online environment in an undergraduate health sciences unit in an Australian university. Methods A single time‐point study using quantitative and qualitative administrative student data (2014–2020) and narrative reflection from teaching academics (n = 5) was undertaken. Descriptive, independent t test and bivariate analyses for student results data were conducted; an inductive approach was used to analyse qualitative data and create codes. Results Student sample (n = 472) consisted face‐to‐face (n = 358, 75.8%) and online (n = 114, 24.2%) enrolments. Final Unit Mark was significantly higher for fully online students compared with face‐to‐face students in 2018 (P = .007) and 2019 (P = .001). Final Unit Achievement was significantly higher for fully online students compared with face‐to‐face students in 2018 (P = .017) and 2019 (P = .043). Three themes emerged: The PBL approach; Evolution of PBLs; Student skills and competencies. Discussion PBL allows students to learn through facilitated problem solving and strong collaborative skills. The face‐to‐face and fully online PBLs improved the student and academic staff experience, while supporting the development of critical thinking and self‐directed research. Further, it supported students to develop their core health promotion competencies; and enhanced the online student learning experience. So what? Vital for contemporary, global graduates, the fully online PBL approach allows students to build critical academic and professional skills utilising current information technology relevant for collaborative professional practice.