Miracle-dz/UniFAR-FTUs huggingface dataset:
Interference-Aware Mobile Backscatter Communication: A PHY-Assisted Rate Adaptive Approach

Over the past decade, backscatter nodes have received booming interest for many emerging mobile applications, such as sports analytics and interactive gaming. However, backscatter networks are not ready to provide a high-throughput and stable communication platform for billions of such mobile nodes due to two main factors in rate adaptation. First, the common mapping paradigm that chooses the optimal rate based on RSSIs is hardly adaptable to hardware diversity. Second, the current probing processes are not optimized for mobile scenarios due to inefficient probing trigger, inaccurate channel estimation, and unique self-interference. To address those issues, we propose MobiRate, a mobility-aware rate adaptation link-layer that fully exploits the mobility hints from PHY information to deliver a high-throughput link-layer for mobile backscatter networks. The key insight is that mobility-hints can greatly benefit link-layer design, including rate selection and channel probing. Specifically, we introduce a novel velocity-based loss-rate estimation module, a mobility-assisted probing trigger, a selective probing module, and a robust self-interference detection module, significantly saving probing time and improving probing accuracy. As MobiRate is fully compatible with the current standard, we prototype it using COTS RFID readers and commercial tags. Our extensive experiments demonstrate that MobiRate can successfully identify self-interference with detection accuracy over 90% for tags of different velocities. Moreover, it achieves up to 3.8x throughput gain over the state-of-the-art methods across a wide range of mobility, channel conditions, and tag types.
Physicians' Perspective of Telemedicine Regulating Guidelines and Ethical Aspects: A Saudi Experience

Methods This was an observational cross-sectional study conducted among physicians working at the College of Medicine, Imam Abdulrahman Bin Faisal University (IAU), and its affiliated academic tertiary hospital, King Fahad Hospital of the University (KFHU), Eastern province-KSA. Data were collected between August 2019 and March 2020 via a structured, pretested, self-administered questionnaire distributed to 220 eligible physicians at KFHU. A final sample of 101 physicians completed our survey. Collected data was coded and analysed using SPSS, and the results presented as frequencies, percentages, and summary statistics. Results Among our respondents, 62 (61.4%) were males, 46 (45.5%) were in the age group of 35 to 44 years, and 62 (61.3%) were Saudi. Two-thirds of physicians (58 (57.4%)) use smart devices in healthcare delivery, and 51 (50.5%) are satisfied with this use. A minority (21 (20.8%)) knew about telemedicine guidelines, 8 (7.9%) had encountered legal issues related to telemedicine use, and 52 (51.5%) were doubtful about patients' readiness for virtual care. Regarding physicians' awareness of the ethical aspects regulating the use of social media and medical apps in patient care, only 44 (45.3%) were aware of the proper reporting system if they found accounts sharing unreliable information. Nevertheless, the majority (91 (92.9%)) agreed it is essential for healthcare providers to report such accounts. Concerning physicians' awareness of the rules and regulations of online self-promotion, the majority of our respondents were unsure or unaware of such regulations (46 (45.6%) and 18 (17.8%)), respectively. Nonetheless, 67 (66.3%) of the physicians would not pay SM influencers to advertise for them. Conclusion Two-thirds of our physicians use smart devices in healthcare delivery, with 1 in 13 having encountered related legal issues. Nonetheless, only a minority was aware of telemedicine use regulating guidelines, including physicians' online self-promotion regulations. These results highlight the necessity of targeted physicians' training on telemedicine use related guidelines, thereby ensuring the safety of both patients and healthcare professionals and the optimum utilization of online health-related interactions.
SZ effects in the Magneticum Pathfinder Simulation: Comparison with the Planck, SPT, and ACT results

We calculate the one-point probability density distribution functions (PDF) and the power spectra of the thermal and kinetic Sunyaev-Zeldovich (tSZ and kSZ) effects and the mean Compton Y parameter using the Magneticum Pathfinder simulations, state-of-the-art cosmological hydrodynamical simulations of a large cosmological volume of (896 Mpc h(-1))(3). These simulations follow in detail the thermal and chemical evolution of the intracluster medium as well as the evolution of supermassive black holes and their associated feedback processes. We construct full-sky maps of tSZ and kSZ from the light-cones out to z = 0.17, and one realization of 8.degrees 8 x 8.degrees 8 deep light-cone out to z = 5.2. The local universe at z = 1.18 x 10(-6) for Omega(m) = 0.272 and sigma(8) = 0.809. Nearly half (approximate to 5 x 10(-7)) of the signal comes from haloes below a virial mass of 10(13) M-circle dot h(-1). Scaling this to the Planck 2015 parameters, we find (Y) over bar = 1.57 x 10(-6).
Adherence to the EAT–Lancet Diet: Unintended Consequences for the Brain?

In January 2019, the EAT–Lancet Commission defined a universal reference diet to promote human and environmental health. However, in doing so, the potential consequences for brain health were not considered. Whilst plant-based diets are generally associated with better cognitive and affective outcomes, those that severely limit animal products are not. Therefore, the potential ramifications of the EAT–Lancet diet on cognition, mood, and heart rate variability were considered (N = 328). Adherence to the Alternative Healthy Eating Index (AHEI) was associated with having a better mood, focused attention, working and episodic memory, and higher heart rate variability. However, when the EAT–Lancet diet was considered, the effects were either smaller or not significant. Cluster analysis identified a dietary style characterised by a strong adherence to the EAT–Lancet recommendation to limit meat intake, representing a sixth of the present sample. This group had a lower Mean Adequacy Ratio (MAR); did not meet the Recommended Nutrient Intake (RNI) for a range of nutrients including protein, selenium, zinc, iron, and folate; and reported a poorer mood. These data highlight the potential unintended consequences of the EAT–Lancet recommendations for nutritional adequacy and affective health in some individuals. There is a need to better optimise the EAT–Lancet diet to support brain health. As we move towards more sustainable diets, these findings emphasise the need to consider how such diets might affect the brain.
Gamma-Ray Burst without Baryonic and Magnetic Load?

We show that, contrary to common belief, internal shocks can arise in an accelerating radiation-dominated jet if it is confined even weakly to a converging opening angle because the acceleration declines. The radiation-dominated internal shock (RDIS) enables a very efficient yet highly nonthermal emission by Fermi-like photon acceleration, keeping the electron-positron (e ± ) pair photosphere and inertia up to a high Lorentz factor > 1000. In gamma-ray bursts (GRBs), a weak confinement would persist beyond the progenitor star or surrounding matter because of the fast cocoon accompanying the breakout jet. The simplest model predicts few high-energy cosmic rays and neutrinos, and a correlation between the early afterglow and the GeV-TeV prompt emission. The central engine allows a less fine-tuned baryon load than previously thought, even including pure-leptonic unmagnetized outflows. Subject Index: 410, 413, 416, 480, 484
Long-term operation of a double phase LAr LEM Time Projection Chamber with a simplified anode and extraction-grid design

We report on the successful operation of a double phase Liquid Argon Large Electron Multiplier Time Projection Chamber (LAr LEM-TPC) equipped with two dimensional projective anodes with dimensions 10×10 cm2, and with a maximum drift length of 21 cm. The anodes were manufactured for the first time from a single multilayer printed circuit board (PCB). Various layouts of the readout views have been tested and optimised. In addition, the ionisation charge was efficiently extracted from the liquid to the gas phase with a single grid instead of two previously. We studied the response and the gain of the detector to cosmic muon tracks. To study long-term stability over several weeks, we continuously operated the chamber at fixed electric field settings. We reproducibly observe that after an initial decrease with a characteristic time of τ ≈ 1.6 days, the observed gain is stable. In 46 days of operation, a total of 14.6 million triggers have been collected at a stable effective gain of G∞ ∼ 15 corresponding to a signal-to-noise ratio (S/N) & 60 for minimum ionising tracks. During the full period, eight discharges across the LEM were observed. A maximum effective gain of 90 was also observed, corresponding to a signal-to-noise ratio (S/N) & 400 for minimum ionising tracks, or S/N ≈ 10 for an energy deposition of 15 keV on a single readout channel.
The Role UX Design Attributes Play in the Perceived Persuasiveness of Contact Tracing Apps

Contact tracing apps (CTAs) were deployed worldwide in 2020 to combat COVID-19. Due to their low uptake, a growing amount of empirical research is being conducted to understand the factors that drive their adoption. For CTAs to be adopted, users must, first and foremost, find them persuasive. However, there is little research to understand the role user experience (UX) plays in their perceived persuasiveness. Consequently, we conducted an online study on Amazon Mechanical Turk among Canadian and American residents (n = 446) to investigate the most important UX design attributes associated with the perceived persuasiveness of CTAs. The study was based on two app designs (control and persuasive), each of which comprises three use cases: no exposure, exposure, and diagnosis report interfaces. One interface (screenshot) was randomly presented to a participant to view and provide their responses on the perceived UX design attributes and perceived persuasiveness of the interface. In the overall model, we found that perceived usefulness is the most important and consistent UX design attribute that influences perceived persuasiveness (β = 0.29, p < 0.001), followed by perceived trustworthiness (β = 0.24, p < 0.001) and perceived privacy protection (β = 0.16, p < 0.05). Respectively, the three predictors were consistently significant in two-thirds, half, and one-third of the 12 submodels based on app design, adoption status, and country of residence. The relationships regarding the persuasive designs are more likely to be significant, with the variance of the target construct explained by the predictors ranging from 71% to 89% compared with 54% to 69% for the control designs. The three significant attributes will help designers know which UX design attributes to focus on when designing CTAs for future epidemics. More importantly, in predictive modeling, if their ratings are known, they hold potential in predicting new users’ responsiveness to multiple persuasive strategies/messages featured in behavior-change support systems.
Experiments on Plane Couette Flow

A simple method for generating plane Couette flow is described. In this technique the water surface of a covered open-channel flume represents the moving boundary, and measurements are performed in the overlying (sandwiched) air layer. Experimental results are presented which suggest transition from laminar to turbulent plane Couette flow at a Reynolds number (based on center-line velocity and channel half-depth) of about 280. Turbulent mean velocities from all available sources are correlated in terms of inner and outer law coordinates, and universal skin friction laws are derived therefrom for the case of hydrodynamically smooth boundaries. However, it is concluded that none of the presently available experimental data on turbulent plane Couette flow render support for von Karman's theory of homologous turbulence. Results of a cursory exploration of the effects of unilateral boundary roughness suggest that mean-flow characteristics on the smooth side of a Couette channel assume the features prevailing on the rough side.
THREE MILLISECOND PULSARS IN FERMI LAT UNASSOCIATED BRIGHT SOURCES

We searched for radio pulsars in 25 of the non-variable, unassociated sources in the Fermi LAT Bright Source List with the Green Bank Telescope at 820 MHz. We report the discovery of three radio and γ-ray millisecond pulsars (MSPs) from a high Galactic latitude subset of these sources. All of the pulsars are in binary systems, which would have made them virtually impossible to detect in blind γ-ray pulsation searches. They seem to be relatively normal, nearby (⩽2 kpc) MSPs. These observations, in combination with the Fermi detection of γ-rays from other known radio MSPs, imply that most, if not all, radio MSPs are efficient γ-ray producers. The γ-ray spectra of the pulsars are power law in nature with exponential cutoffs at a few GeV, as has been found with most other pulsars. The MSPs have all been detected as X-ray point sources. Their soft X-ray luminosities of ∼1030–1031 erg s−1 are typical of the rare radio MSPs seen in X-rays.
Resolving the inner structure of QSO discs through fold-caustic-crossing events

Though the bulk of the observed optical flux from the discs of intermediate-redshift lensed quasars is formed well outside the region of strong relativistic boosting and light-bending, relativistic effects have important influence on microlensing curves. The reason is in the divergent nature of amplification factors near fold caustics increasingly sensitive to small spatial size details. Higher-order disc images produced by strong light bending around the black hole may affect the amplification curves, making a contribution of up to several percent near maximum amplification. In accordance with theoretical predictions, some of the observed highamplification events possess fine structure. Here we consider three putative caustic crossing events, one by SBS J1520+530 and two events for individual images of the Einstein’s cross (QSO J2237+0305). Using relativistic disc models allows to improve the fits, but the required inclinations are high, i & 70 . Such high inclinations apparently contradict the absence of any strong absorption that is likely to arise if a disc is observed edge-on through a dust torus. Still, the high inclinations are required only for the central parts of the disc, that allows the disc itself to be initially tilted by 60::90 with respect to the black hole and aligned toward the black hole equatorial plane near the last stable orbit radius. For SBS J1520+530, an alternative explanation for the observed amplification curve is a superposition of two subsequent fold caustic crossings. While relativistic disc models favour black hole masses 10 10 M (several times higher than the virial estimates) or small Eddington ratios, this model is consistent with the observed distribution of galaxies over peculiar velocities only if the black hole mass is . 3 10 8 M .
Small worlds in space: Synchronization, spatial and relational modularity

In this letter we investigate networks that have been optimized to realize a trade-off between enhanced synchronization and cost of wire to connect the nodes in space. Analyzing the evolved arrangement of nodes in space and their corresponding network topology, a class of small-world networks characterized by spatial and network modularity is found. More precisely, for low cost of wire optimal configurations are characterized by a division of nodes into two spatial groups with maximum distance from each other, whereas network modularity is low. For high cost of wire, the nodes organize into several distinct groups in space that correspond to network modules connected on a ring. In between, spatially and relationally modular small-world networks are found.
An Alternative Methodology for the Evaluation of Photocatalytic Activity of Polymeric Coatings by Monitoring Dye Degradation

This work provides an alternative method for evaluating the photodegradation behaviour of different types of dyes such as Methylene Blue, Rhodamine B, Congo Red, Metanil Yellow, and Malachite Green. In this methodology, the coating is dyed with the chosen colorant and two beams of light are combined and channelled to a spot on the dyed coating through an optical fibre, the first one from an ultraviolet (UV) source (which is the responsible of activating photocatalysis) and the second one from a Visible light source, which is employed to monitor changes in colour along the time. The photocatalytic coating selected for testing this methodology consists of a mat of electrospun poly (acrylic acid) (PAA) fibres that acts as base film, furtherly coated by using layer-by-layer (LbL) assembly technique for the immobilization of two different photocatalytic metal oxide precursors (TiO2 and Fe2O3) nanoparticles. The morphological characterization of the samples has been implemented by means of scanning electron microscopy (SEM), confocal microscopy, and water contact angle measurements in order to analyse the resultant thickness, roughness, electrospun fibre diameter, and wettability. The experimental results clearly demonstrate the validity of the methodology to measure the photocatalytic activity in all dyed coatings, although significant differences have been observed depending on the selected dye.
The Muslim: Islamophobia as disembodiment

ABSTRACT Islamophobia is not just a fear of people ascribing to the religion of Islam, if that was the case simple religious conversions would erase hatred. In the world of surging Alt-Right movements, Islamophobia embodies racism, anti-migrant xenophobia, and orientalism. This article explores Alt-Right groups in the US and Europe, traces their ideological gurus, deconstructs political speeches, reports of rightwing think tanks to understand how Islamophobia is a process of disembodiment. Inspired by Bourdieu’s habitus, and feminist work on embodiment/disembodiment, this article argues that the Muslim narrative thoroughly disembodies the Muslim body. Disembodiment is annihilation before corporeal death ensues, the Muslim does not get to mark her corporeal and intellectual existence. Disembodiment nullifies the Muslim’s life, she is only valuable in death, because disembodiment reclaims her death as a vanquished terrorist, as a murdered jihadi, or a bombed city where weapons of mass destruction or uranium may have existed.
Emulsion system, demulsification and membrane technology in oil–water emulsion separation: A comprehensive review

Abstract The economic development, utilization of petroleum and industrial production have produced a large quantity of emulsified oily wastewater, which will pose a serious threat to human beings and the environment if it is discharged into the environment without proper treatment. The conventional treatment methods for oily wastewater mainly include physical, chemical, and biological methods. Membrane separation technology, as a representative of physical treatment technology, has become a research hotspot. A large number of studies have shown that membrane separation technology has many advantages such as low energy consumption, low cost, high efficiency, and environmental protection. However, the practical engineering application is dominated by chemical treatment rather than membrane separation technology. So, the reason why membrane separation technology has not been widely applied in practice warrants investigation. In this paper, two main issues are summarized after comprehensive analysis: (1) the mechanism of membrane demulsification and separation is still unclear, especially the migration and transformation of emulsifiers during the process of demulsification; (2) some limitations such as membrane stability and membrane pollution are still needs to be overcome. Therefore, this paper deeply analyzes the demulsification mechanism and application barriers of various demulsification technologies with the overview of emulsion system as the starting point. An important emphasis is the application status of membrane separation technology in emulsion separation and the membrane fouling problem. Finally, some important issues in this field worthy of attention in the future development are put forward. Graphical Abstract
Sur les variétés CR de dimension 3 et les twisteurs

Nous montrons qu'une variete CR strictement pseudoconvexe, de dimension 3, analytique reelle, est le bord a l'infini d'une unique metrique d'Einstein autoduale, definie dans un petit voisinage. La preuve s'appuie sur une construction nouvelle d'espaces de twisteurs a l'aide de courbes rationnelles singulieres.
Floristic Diversity of Recruits in Plantations of Eucalyptus Deglupta B., 1863, Pinus Caribeae M., 1851, And Gmelina Arborea R., 1814: Case of Cellucam Plantations Near (Litoral,

: Floristic diversity is the set of plant species of an ecosystem or a given environment. Recruits are species regenerated after a disturbance in an environment. In this study it is a natural regeneration different from the artificial regeneration. The main objective of this study is to assess the level of natural regeneration under the artificial plantations. The strip sounding method is used over approximately two (2) hectares per type of plantation. Parameters measured are the abundance of recruits, the specific richness, the abundance of genera and families and the diameters of the stems. The floristic diversity was assessed through five indices. These are the Shannon indices, Simpson indices, Hill indices, regularity indices and generic diversity indices. The results of the inventory show that the abundance of recruits is significantly different in the plantations and the surrounding forest. Species richness varies by type of plantation. Almost all of the three types of vegetation in the plantations have a Shannon index significantly greater than 1 and testifies to the very high diversity. The 1-Hill difference reached the value 0.97, 0.94 and 0.9 which values very close to 1. The regularity index shows that the taxa of plant communities of the recruits are not regularly distributed and have a low taxonomic richness. The lowest value of the generic diversity indices is 1.07. This shows that generic diversity is low in the three plantations. The floristic affinity between the 3 plantations is greater than 50%. According to Sørensen, these results demonstrate that the three plantations have the same floristic composition and constitute the same biological unit.
CeO2 nanoparticles decorated on porous Ni–Fe bimetallic phosphide nanosheets for high-efficient overall water splitting

ABSTRACT A self-supported electrode was designed and prepared for the first time with CeO2 nanoparticles decorated on porous Ni–Fe bimetallic phosphide nanosheets, which were grown on high-conductivity Ni foam. Owing to the strong electronic interactions between the heterostructure interfaces and the introduction of oxygen vacancies, such an electrode displays outstanding oxygen evolution reaction performance with an overpotential of 188 mV at 10 mA cm–2 and the electrolyzer using the electrode as both cathode and anode exhibits a cell voltage of 1.54 V at 10 mA cm–2. GRAPHICAL ABSTRACT IMPACT STATEMENT The oxygen vacancy engineering strategy was easily achieved by electrodeposition of CeO2 and it can be extended to the design of other high-efficient and low-cost electrocatalysts.