Miracle-dz/UniFAR-FTUs huggingface dataset:
Prosthetic Complications of Screw-Retained Restoration Using Multiunit Abutments Versus Intraoral Luting on Titanium Base in Implant-Supported Complete Overdentures Randomized Clinical Trial

BACKGROUND: This trial aims to study the difference between prostheses screwmented on full-arch implants using the intraoral luting cement technique on titanium bases versus transmucosal abutments in terms of prosthetic complications. MATERIALS AND METHODS: Twenty patients were recruited in this trial, there were mainly two groups. A screwretained full-arch implant-supported prosthesis was constructed over four dental implants on upper or lower jaws. For the control group, multiunit abutments were used to construct a screw-retained prosthesis. As for the experimental group, Ti-base abutments were used over the dental implants to construct a screw-retained prosthesis. In both groups, the prosthetic framework was made using polyether ether ketone (PEEK) material and luted intraorally over the titanium sleeve using resin cement. A binary outcome of prosthetic complication was taken in 6 and 12 months. Abutment screw loosening, prosthetic screw loosening, prosthetic screw fracture, abutment screw fracture, veneer fracture, framework fracture, Ti-base decementation, and overall prosthetic loosening were the prosthetic complications included in the trial. RESULTS: At the end of the study, a total of 19 patients adhered to the trial. Throughout the exposure process of implants, two implants failed in one patient from the Ti-base group. This patient was excluded from the study on his request. There was no statistically significant difference present between Ti-base and multiunit abutment groups in terms of abutment and prosthetic screw loosening, abutment and prosthetic screw fracture, veneer and framework fracture, Ti-base decementation, and overall prosthesis loosening for 6 and 12 months. Data were explored for normality using Kolmogorov–Smirnov and Shapiro–Wilk tests, data showed non-parametric (not-normal) distribution. Qualitative data were presented as frequencies and percentages. Wilcoxon and Mann–Whitney tests were used to compare the qualitative outcomes in this study. CONCLUSION: Both multiunit and Ti-base are considered a viable line of treatment to construct a screw-retained full arch implant-supported prosthesis. Edited by: Aleksandar Iliev Citation: Saeed M, El-Far MM, Elkhadem AH. Prosthetic Complications of Screw-Retained Restoration Using Multiunit Abutments Versus Intraoral Luting on Titanium Base in Implant-Supported Complete Overdentures Randomized Clinical Trial. Open-Access Maced J Med Sci. 2022 Jan 03; 10(D):14-27. https://doi.org/10.3889/oamjms.2022. 7662
Numerical analysis of surf and swash zone hydrodynamics under the influence of submerged breakwater

The study of hydrodynamics in the surf and swash zone is essential to understanding the nearshore sediment transport and coast beach evolution.A numerical model is developed to analyze the flow mechanism in surf and swash zone under the influence of submerged breakwater.The two-dimensional Reynolds Averaged Navier-Stokes equations,together with a nonlinear k-e turbulence model,and a finite difference method are employed in the model development.For a better simulation of wave breaking,a piecewise linear interface construction volume of fluid technique is utilized,which has good accuracy in describing air/water surfaces.The numerical model is validated with the experimental data and used to analyze the influence of submerged breakwater.The numerical results indicate that the location of breaking point and hydrodynamic characteristics in surf and swash zone are changed by the submerged breakwater.The wave height(H),wave length(L),depth of submergence(R) and crest width(B) play an important role in influencing hydrodynamic processes in these two zones.Under the same incident wave,the maximum turbulent kinetic energy and turbulence dissipation rates in two zones decrease as B/R increases.The dimensionless numbers of Re,Fr and St are deduced form RANS equations and used to describe hydrodynamics in surf and swash zones.The wave breaking could take place near the shore as RL/BH increases,meanwhile Re and Fr increases,and at the same time St decreases.
Estimation of Rapid Time-Variant Channels for OFDM Using Wiener Filtering

The performance of Orthogonal Frequency Division Multiplexing(OFDM) deteriorates in a rapidly timevariant environment due to the loss of orthogonality,resulting in Inter Channel Interference(ICI). Moreover,the quality of a modelbased channel estimation may degrade if the estimator has been designed for a timeinvariant scenario.In this paper,we consider OFDM and pilot aided channel estimation via Wiener filtering and derive the filter for a timevariant WSSUS model.In addition,the analysis allows to compute the performance loss for an improper estimation filter which suffers from the problem of model mismatch.
Pinned loads: taming speculative loads in secure processors

In security frameworks for speculative execution, an instruction is said to reach its Visibility Point (VP) when it is no longer vulnerable to pipeline squashes. Before a potentially leaky instruction reaches its VP, it has to stall—unless a defense scheme such as invisible speculation provides protection. Unfortunately, either stalling or protecting the execution of pre-VP instructions typically has a performance cost. One way to attain low-overhead safe execution is to develop techniques that speed-up the advance of the VP from older to younger instructions. In this paper, we propose one such technique. We find that the progress of the VP for loads is mostly impeded by waiting until no memory consistency violations (MCVs) are possible. Hence, our technique, called , tries to make loads invulnerable to MCVs as early as possible—a process we call pinning the loads in the pipeline. The result is faster VP progress and a reduction in the execution overhead of defense schemes. In this paper, we describe the hardware needed by , and two possible designs with different tradeoffs between hardware requirements and performance. Our evaluation shows that is very effective: extending three popular defense schemes against speculative execution attacks with reduces their average execution overhead on SPEC17 and on SPLASH2/PARSEC applications by about 50%. For example, on SPEC17, the execution overhead of the three defense schemes decreases from to , from to , and from to .
The use of aromatherapy in the nursing context: an integrative review

1Federal University of Rio Grande do Norte – Natal (RN), Brazil. E-mails: ilisdayne@yahoo.com. br, allice.campelo96@outlook.com, yasminnuplac@gmail. com, marimelogois@gmail.com, rirosendo@hotmail.com 2State University of Rio Grande do Norte – Mossoro (RN), Brazil. E-mail: rebeca.stefany@hotmail.com How to cite this article: Silva ITS, Araújo AC, Medeiros YE, Santos RSC, Góis MMCD, Silva RAR. The use of aromatherapy in the nursing context: an integrative review. Rev. Eletr. Enferm. [Internet]. 2020 [cited on: _________];22:59677. Available at: https://doi.org/10.5216/ree.v22. 59677. Received on: 07/21/2019. Accepted on:10/06/2020. Available on: 12/10/2020. RESUMO Objetivo: investigar na literatura científica como a aromaterapia é utilizada na prática assistencial da enfermagem. Método: Revisão integrativa da literatura com a seguinte questão norteadora: Como a aromaterapia é utilizada na prática assistencial de Enfermagem? O levantamento das publicações ocorreu no período de março e abril de 2020, nas bases de dados BDENF, LILACS e MEDLINE. Resultados: Após a leitura e análise dos artigos, 16 artigos compuseram a amostra final desta revisão. Os dados foram analisados por meio de categorias temáticas. A análise agrupou o estudo em três categorias: A aromaterapia usada no alívio da dor; A aromaterapia usada nos cuidados paliativos oncológicos; e A aromaterapia como recurso terapêutico na saúde mental. Conclusão: A síntese das evidências encontradas fortalece a prática da aromaterapia dentro da enfermagem como uma intervenção para o cuidado integral do cliente, consolidando a Política Nacional de Práticas Integrativas e Complementares no Sistema Único de Saúde.
Constructive Common-Centroid Placement and Routing for Binary-Weighted Capacitor Arrays

The accuracy and linearity of capacitive digital-to-analog converters (DACs) depend on precise capacitor ratios, but these ratios are perturbed by process variations and parasitics. This paper develops fast constructive procedures for common-centroid placement and routing for binary-weighted capacitors in charge-sharing DACs. Parasitics also degrade the switching speed of a capacitor array, particularly in FinFET nodes with severe wire/via resistances. To overcome this, the capacitor array is placed and routed to optimize switching speed, measured by the 3dB frequency. A balance between 3dB frequency and DAC INL/DNL is shown by trading off via counts with dispersion. The approach delivers high-quality results with low runtimes.
Kinematic Slip Model of the 2021 M 6.0 Antelope Valley, California, Earthquake

We present a kinematic slip model of the 8 July 2021 Antelope Valley earthquake from a finite-source inversion based on regional seismic waveforms and static offsets from Global Positioning System (GPS) and Interferometric Synthetic Aperture Radar (InSAR). Seismic waveforms are employed at 6 s dominant period out to 100 km from the epicenter, and the combined GPS and InSAR datasets cover the near field and far field out to ∼100 km and constrain the overall rupture size. The aftershock pattern defines a nearly north-striking, 50° east-dipping fault plane. We find a unilateral rupture along this fault plane propagating southward and updip with predominantly normal slip up to ∼1.5 m. The estimated seismic moment of 8.47×1017 N·m is equivalent to Mw 5.92. A finite-source inversion that retains seismic waveforms and GPS static offsets but omits InSAR range changes yields a seismic moment of 1.08×1018 N·m (Mw 5.99). Despite vigorous aftershock activity between 10 km and Earth’s surface, coseismic slip is concentrated in the depth interval 7–10 km.
Politics of the group draws in football. The case of restricted team clashes

ABSTRACT The article is dedicated to the issue of restricted team clashes in football drawing procedures – the situations in which two teams cannot be drawn into the same group, either in the qualifications or in the final tournament, owing to security reasons. In recent history, there were seven of such restricted clashes: Armenia–Azerbaijan, Russia–Georgia, Gibraltar-Spain, Bosnia and Herzegovina-Kosovo, Serbia–Kosovo, Ukraine–Russia, and Russia-Kosovo. All of them stemmed from estranged international political relations. The research aimed to review the history of prohibited team clashes in UEFA and FIFA men’s tournaments and to discuss it in reference to the international sports organisations’ traditional rhetoric of separation between politics and sport, as well as their actual behaviour concerning the collisions between these two spheres. According to the central argument of the article, separating teams based on political reasons should be interpreted as ‘surrender to politics’ by international football governing bodies.
Prediction model of elastic constants of BCC high-entropy alloys based on first-principles calculations and machine learning techniques

ABSTRACT By combining first-principles electronic structure calculations and machine learning techniques, prediction models of elastic constants are constructed for BCC high-entropy alloys (HEA) containing 5 different elements chosen from 3d, 4d and 5d transition metals with equal concentration. Three independent elastic constants of randomly selected 2555 HEAs are calculated by using the full potential Korringa–Kohn–Rostoker (FPKKR) method with taking configurational disorder into account within the coherent potential approximation (CPA). From the obtained database of the elastic constants, prediction models are constructed by the linear regression using the descriptors generated by the linearly independent descriptor generation (LIDG) method. By optimizing the selection of descriptors based on the genetic algorithm (GA), prediction errors of 10.2 GPa, 4.5 GPa, 2.4 GPa and 7.7 GPa are achieved for bulk modulus , shear moduli , and Young’s modulus , respectively. By using the generated model we propose some HEAs with low . It is well known that the magnitude of is closely related to the shape of the calculated density of states (DOS). This statement is reconfirmed within the BCC HEAs, i.e., HEAs with larger DOS at the Fermi level shows smaller Young’s modulus and vice versa. Graphical abstract
Drone Detection Using Sparse Lidar Measurements

Unmanned aerial vehicles (UAV) have been serving people, fulfilling various roles in research, industry and military, not to exclude personal entertainment. They have also been in use more often for malicious purposes, such as annoying neighbors, disrupting air-travel, attacking people or infrastructure. Therefore, motivated particularly by malicious uses, the research community has been interested in proposing solutions for detection of UAVs. In this work, we present a ground based aerial target detection system using lidars, relying on sparse detections rather than dense point clouds, with the aim of not only detecting but also estimating their motion and active tracking. We lay a theoretical groundwork to analyse the performance of such a lidar based detection system and help understanding its limitations. The work is complemented with field experiments utilizing a state-of-the-art lidar and several drones of different sizes, showing effectiveness in both detection and tracking using sparse measurements.
From HEVC to VVC: The First Development Steps of a Practical Intra Video Encoder

Versatile Video Coding (VVC/H.266) is an emerging successor to the widespread High Efficiency Video Coding (HEVC/H.265) and is shown to double the coding efficiency for the same subjective visual quality. Nevertheless, VVC still adopts the similar hybrid video coding scheme as HEVC and thereby sets the scene for reusing many HEVC coding tools and techniques as is or with minor modifications. This paper explores the feasibility of developing a practical software VVC intra encoder from our open-source Kvazaar HEVC encoder. The outcome of this work is called uvg266 VVC intra encoder that is distributed under the same permissive 3-clause BSD license as Kvazaar. uvg266 inherits the optimized coding flow of Kvazaar and all upgradable Kvazaar intra coding tools, but it also introduces basic VVC intra coding tools not available in HEVC. To the best of our knowledge, this is the first work to describe the implementation details of upgrading an HEVC encoder to a VVC encoder. The rapid development time with promising coding performance make our proposal a viable approach over the encoder development from scratch.
Electrostatic Jet Engineering of Flexible Composite Pressure Sensors for Physical Applications

Design and fabrication of highly sensitive and flexible sensors is an area of intense interest and research, but is limited with respect to the detection range and application (e.g., deployment in both terrestrial and aquatic remits). Here, we present flexible pressure sensors (FPSs) comprising graphene and PANI embedded polyethylene oxide and exhibiting ultralow detection limits. These sensors were prepared using a modified electrohydrodynamic (EHD) jetting method and enabled wearable monitoring of physiological parameters and selective aquatic life activity. Sensor thickness, resistance, and sensitivity were modulated through jetted layers.
Improved performance of flexible citrus resistive memory device through air plasma

Flexible natural material-based electronics have attracted considerable attention because it can be applied in wearable applications and bio smart electronics. Natural material citrus is used as the dielectric layer in this work to develop flexible resistive switching memory devices, with plasma ITO surface as the bottom electrode (BE) to investigate the effects of air plasma on device performances. The work function difference between the top electrodes (TE) and BE can be increased with plasma treatment. After optimization, the flexible citrus resistive memory device with a large work function difference between the TE and BE exhibits a good ON/OFF ratio of larger than 103, a low set voltage of around 0.76 V, uniform distribution of set voltages, small coefficients of variation of high resistance state, and low resistance state currents, and a long retention time of more than 104 s. The air plasma can also modify the ITO surface to make the surface more hydrophilic. Thus, the citrus film is easier to attach to ITO, which improves the bending performance of the device. The device under a bending radius of 4.9 mm showed no significant ON/OFF ratio changes when compared with that of the flat state. This information on the correlation between the plasma treatment time and the work function of the ITO electrode would be very useful in obtaining stable and uniform resistive switching properties in the flexible natural material-based resistive memory.
NetEC: Accelerating Erasure Coding Reconstruction with In-Network Aggregation

In distributed storage systems, Erasure Coding (EC) is a crucial technology to enable high data availability. By downloading parity data from survived machines, EC can reconstruct lost data with much lower storage overheads than data replication. However, this reduction in storage cost comes at the expense of extra performance problems: low reconstruction rate, high degraded read latency, and high host CPU utilization. Our analysis shows that these performance problems are deeply rooted in the host-based EC processing. To resolve these problems, we present NetEC, an in-network accelerating framework that fully offloads EC to the new generation programmable switching ASICs. We propose Explicit Buffer Size Notification (EBSN) to constrain decoding buffer usage, and design an on-switch one-to-many TCP proxy to integrate EBSN with TCP. We also design two parallel Galois Field (GF) offloading methods---table lookup and bitmatrix methods---to maximize parsable bytes. We implement NetEC on programmable switches and integrate it with HDFS. Extensive evaluations show that NetEC improves the reconstruction rate by 2.7x-6.8x, reduces the degraded read latency significantly, and removes the host CPU overhead completely. We also emulate multi-rack scenarios and show that NetEC is able to support ~GB/s reconstruction rate and tens of concurrent tasks.
Regenerative Braking of Electric Vehicle with Brushless DC Motor

Given the volatile market prices and impending reduction in fuel supplies, electric vehicles (EV) have drawn increasing attention. The electric motor in EVs is an important component because it functions as an engine during acceleration and as a generator during deceleration or braking. Energy is saved in these processes when the kinetic energy is converted into electrical energy, which is then stored in a storage system by a regenerative braking system (RBS). In terms of highly efficient performance, ideal torque and speed, high-powered density, and cost-effective maintenance, brushless DC (BLDC) motors are preferred. This paper aims to explore and propose a seamless and effective method of RBS for a BLDC motor in an EV. In braking mode, the proposed method change the motor to act as a generator even without any additional converter, ultra-capacitor, or a complex winding-changeover technique. In this mechanism, the energy flows to the DC side. By using MATLAB/SIMULINK, the BLDC motor with speed and current controller is simulated. Accordingly, in the deceleration or braking mode, the motor functions as a generator and transports the power to the DC side. The proposed model is validated in both starting or no-load and load conditions.
Enhanced Ca2+ Entry Sustains the Activation of Akt in Glucose Deprived SH-SY5Y Cells

The two crucial cellular insults that take place during cerebral ischemia are the loss of oxygen and loss of glucose, which can both activate a cascade of events leading to neuronal death. In addition, the toxic overactivation of neuronal excitatory receptors, leading to Ca2+ overload, may contribute to ischemic neuronal injury. Brain ischemia can be simulated in vitro by oxygen/glucose deprivation, which can be reversible by the re-establishment of physiological conditions. Accordingly, we examined the effects of glucose deprivation on the PI3K/Akt survival signaling pathway and its crosstalk with HIF-1α and Ca2+ homeostasis in SH-SY5Y human neuroblastoma cells. It was found that glucose withdrawal decreased HIF-1α protein levels even in the presence of the ischemia-mimicking CoCl2. On the contrary, and despite neuronal death, we identified a strong activation of the master pro-survival kinase Akt, a finding that was also confirmed by the increased phosphorylation of GSK3, a direct target of p-Akt. Remarkably, the elevated Ca2+ influx recorded was found to promptly trigger the activation of Akt, while a re-addition of glucose resulted in rapid restoration of both Ca2+ entry and p-Akt levels, highlighting the plasticity of neurons to respond to ischemic challenges and the important role of glucose homeostasis for multiple neurological disorders.
Development of a low cost controller and navigation system for unmanned ground vehicle

The objective of this research was to develop an Unmanned Ground Vehicle (UGV) which is capable of autonomously navigating to user specified Global Positioning System (GPS) waypoints. For rapid design and testing of the UGV, it was initially designed in a distributive approach using independent commercial off-the-shelf (COTS) computing modules for control and sensing. Autonomous navigation behavior of the UGV was tested to analyze the strengths and weaknesses of the UGV design, using digital compass for heading and GPS for location measurements. The UGV waypoint navigation has been observed to be consistent for smooth terrains. Uneven terrains, however, posed a challenge for UGV navigation as the underlying terrain induced noise and error into the compass thus making the UGV heading measurements unreliable. The UGV heading estimation was improved by applying a Kalman filter for gyro, GPS, and compass measurements. The heading estimate obtained using this technique has always been observed to be within five degrees of the actual UGV heading. The performance of the UGV electronic control and sensing subsystem has been improved by replacing all the COTS modules with a low cost Freescale 9S12 microcontroller. A circuit board integrating a 9S12 microcontroller and a single axis rate gyro was designed to interface with a host computer. The microcontroller receives instructions over a serial RS-232 connection from the host computer to perform a set of maneuvers and also to monitor the status of the UGV. The hardware design coupled with the estimation technique not only simplified the electronic hardware design and improved the reliability of the system but also brought down the design costs of the UGV.