Miracle-dz/UniFAR-FTUs huggingface dataset:
Enhancing emulsion liquid membrane system (ELM) stability and performance for the extraction of phenol from wastewater using various nanoparticles

Emulation liquid membrane (ELM) technology has recently garnered attention as an efficient alternative for separating pollutants, but it faces the problem of instability during the application, as well as emulsion breaking. With this in mind MgO, Al2O3, and three magnetic Fe2O3 nanoparticles (of different sizes) were utilized to fabricate a new Pickering ELM system (PELM). The extraction efficiency of phenol from aqueous solution by PELM was studied with different NPs types and with different phenol concentrations (1,000; 500; 100; and 50 ppm). It was found that the type of NPs and concentration of phenol in aqueous solution have a significant impact on the phenol extraction efficiency. By utilizing different NPs as the emulsifier, the extraction efficiency of phenol from a feed solution of 100 ppm phenol was between 91% and 97% after 12 min of contact with different PELM.
Channel Assignment for Hybrid NOMA Systems With Deep Reinforcement Learning

The Hybrid Non-Orthogonal Multiple Access (NOMA) is a promising candidate for multiple access techniques of future wireless communication, which integrates orthogonal multiple access and traditional NOMA. The performance of hybrid NOMA systems depends on resource allocation including power and channel. In this letter, we focus on the channel assignment. Since channel assignment needs to be adapted to a real-time changing environment and accomplished in a restricted time slot, we treat the optimization of the dynamic channel assignment problem as a deep reinforcement learning task, to achieve better environmental adaptability with low time complexity. Simulation results show that the proposed method achieves better performance in terms of sum rate and spectral efficiency, compared to conventional methods.
Analgesia and Sedation in Critically Ill Adult Patients Admitted to a COVID-19 Intensive Care Unit

Abstract The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), causing the COVID-19 has spread globally, prompting world health organization (WHO) to declare COVID-19 a pandemic. As of January 2, 2021, about 82,579,768 laboratory-confirmed COVID-19 cases had been reported to the WHO with 1,818,849 deaths (https://covid19.who.int). The pandemic has severely impacted health care systems around the world, resulting in a vast number of surgical procedures being cancelled or postponed and an unprecedented burden on intensive care units (ICU). A critical component of the perioperative or ICU services delivery is the provision of analgesia and sedation. Volatile inhalational anesthetics combined with opioids are widely used in an operating room, whereas in ICUs, intravenous drugs are used for this purpose. Although target-controlled infusions are not routinely used in ICUs, in the context of the thematic series on total intravenous anesthesia during COVID-19 pandemic, this article will focus on key aspects of intravenous sedation and analgesia in the management of critically ill patients admitted to an ICU following positive swab test for SARS-CoV-2 RNA.
Artery-Vein Detection using Neural Network in Retina Images

Retinal veins segmentation play a vital role in the life because of entire world moves toward the digital words. The paper presents an approach to identify the blood vessels from the optically affected areas of an eye. This method is proposed as the manual extraction of vessels from the fundus image is a very tedious task also it takes higher amount of time. Therefore, the paper mainly focuses on the developing an approach for vessel extraction. The methodology reportedly excels in terms of accuracy also being simple it finds many applications in image diagnosis for predicting various pathological diseases opathalmologically. It can create a new perspective in disease detection in a more accurate way. The input images are initially preprocessed; next the features are extracted from the images. The extracted images form the training set and the testing process is performed using the proposed methodology. Finally, the proposed work achieved 96.8% accuracy on benchmark datasets.
Analysis about Heat Transfer of Vegetables during Cold Shock Treatment and Preservation Quality after Storage

Abstract This study investigated the heat transfer mechanism and preservation quality of axisymmetric vegetables during cold shock treatment (CST). A simulation model of heat transfer was developed based on geometrical and biological characteristics of the vegetables by finite element difference method. CST for cucumbers and carrots with cold water at 0°C (40 min), 2°C (20, 40 and 60 min) and 4°C (40 min) was conducted to evaluate the relationships between heat transfer characteristics and preservation quality. The comparative analysis shown that the simulated results agreed well with measured results. Meanwhile, in terms of weight loss, firmness and POD activity, CST with cold water at 2°C for 40 min could achieve the most positive effect on preserving cucumbers. The cucumber during treatment experienced whole variable temperature stage and appropriate constant temperature stage so as to reach optimal preservation quality.
Performance of anammox biofilm reactor under tropical temperature

Application of anaerobic ammonium oxidation (anammox) process for mainstream wastewater in the lower temperature is a current challenge where most of the anammox reactors planted in the sub-tropical country. The purpose of this study was to analyze the performance of nitrogen removal using anammox process at room temperature in a tropical country. The experiment was carried out using 300 mL an up-flow anaerobic sludge blanket (UASB) reactor in treating low ammonia concentration artificial wastewater at tropical temperature without any adjustment. The reactor filled with 50% in volume spiral-sheet plastic (polyethylene terephthalate) as the carrier. Anammox bacteria Candidatus Brocadia sinica as seeding acclimatized in room temperature for three months before the experiment. The reactor fed with 70 mg-N/L for both ammonium and nitrite with variations in hydraulic retention time (HRT) 24 hours and 12 hours. The maximum nitrogen removal rate (NRR) achieved 0.12 kg-N/(m3·d) at nitrogen loading rate (NLR) 0.14 kg-N/(m3·d) and NRR 0.25 kg-N/(m3·d) at NLR 0.28 kg-N/(m3·d). The anammox process was stable at room temperatures (15-28°C) in a tropical country for nitrogen removal and anammox bacteria grown on plastic media.
Estimation of Office Worker’s Emotion Types Using Two-dimensional Model Consisted of Biometric Signals

: A model that estimates emotion types from bio-signals obtained by wearable monitoring systems was developed. A total of 470 events of strongly conscious emotions (happy, relaxed, sad, and angry) during work hours were recorded in 11 office workers under a total of 911 days of continuous monitoring of pulse rate, pulse rate variability (PRV), skin temperature, body motion, and conversation time with a bracelet-shape wearable sensor. When the four emotion types were developed on the two-dimensional plane consisted of valence and arousal axes, the former axis was composed of the coefficient of variation of high-frequency PRV amplitude and skin temperature, while the latter axis was composed of the frequency variability of PRV respiratory peak and conversation time. Among office workers, two emotional coordinates comprising the Russel’s Circumplex model may be estimated by bio-signals obtained by a wearable watch device.
Lead free CH3NH3SnI3 perovskite thin-film with p-type semiconducting nature and metal-like conductivity

Lead free CH3NH3SnI3 perovskite thin film was prepared by low temperature solution processing and characterized using current sensing atomic force microscopy (CS-AFM). Analysis of electrical, optical, and optoelectrical properties reveals unique p-type semiconducting nature and metal like conductivity of this material. CH3NH3SnI3 film also showed a strong absorption in visible and near infrared spectrum with absorption onset of 1.3 eV. X-ray Diffraction analysis and scanning electron microscopy (SEM) confirmed a structure of this compound and uniform film formation. The morphology, film uniformity, light harvesting and electrical properties strongly depend on preparation method and precursor solution. CH3NH3SnI3 films prepared based on dimethylformamide (DMF) showed higher crystallinity and light harvesting capability compared to the film based on combination of dimethyl sulfoxide (DMSO) with gamma-butyrolactone (GBL). Local photocurrent mapping analysis showed that CH3NH3SnI3 can be used as an active lay.
Nanofluid in the multiphase flow field and heat transfer: A review

Two‐phase heat transfer is widely used in the heat transfer field, for example, condenser and evaporator in the refrigeration system, riser, and condenser in thermal power plants, and so on. The advantage of two‐phase heat transfer is that it gives a very‐high convective heat transfer coefficient compared to other modes of heat transfer. Nanofluid is a comparatively new heat transfer fluid and very popular because of its improved thermophysical properties. If nanofluid is used in a two‐phase heat transfer field, then the convective heat transfer coefficient may improve further. Nanofluids are possibly useful in many studies in two‐phase heat transfer like pool boiling heat transfer, flow boiling heat transfer, nanofluids in a microchannel, forced convective heat transfer, condensation, spray cooling, enhanced oil recovery, and so on. The effect of nanoparticles on wettability, contact angle, and nucleation sites are also reviewed in this paper. Numerical studies in two‐phase heat transfer are also reviewed and summarized in this paper. In this review, the chronological development of heat transfer in the two‐phase field is provided in a tabular form. This table covers a wide period starting Before Common Era ages until the recent addition of nanoparticles in the two‐phase heat transfer fluid.
HAPS-Based Relaying for Integrated Space–Air–Ground Networks With Hybrid FSO/RF Communication: A Performance Analysis

Optical wireless communication (OWC) has garnered significant importance to provide gigabit capacity links owing to its unique features. Free-space optics (FSO) communication, which is the term used for OWC in an outdoor scenario, is a good candidate to establish ground-to-satellite/satellite-to-ground links. Despite of many advantages, FSO communication in uplink is limited by the adverse effects of beam-wander, beam scintillation, and pointing errors. Therefore, to counteract the limitations, it is wise to backup FSO links with reliable radio frequency (RF) links. In addition, the complementary characteristics exhibited by FSO and RF links to atmospheric effects have paved the way for hybrid FSO/RF communication. In recent years, a growing interest is also witnessed in the research and development of space–air–ground integrated network (SAGIN). This article aims to fuse FSO and RF technologies for integrated space–air–ground uplink networks utilizing unmanned aerial vehicle (UAV), such as high-altitude platform station (HAPS) as a relay station for achieving better reliability. Thus, we propose single-hop and SAGIN-based dual-hop system models for uplink satellite communication with hybrid FSO/RF links and the performance is investigated using analytical and simulation results. In summary, the results show that hybrid FSO/RF systems perform better than the FSO systems in an uplink scenario due to the backup RF link.
Linear and nonlinear sorption modelling for adsorption of atrazine onto activated peanut husk

A laboratory experiment was conducted to investigate the efficiency of chemically and thermally activated peanut husk (APNH) for removing atrazine from aqueous solutions. The prepared APNH was characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Batch experiments were serially conducted to evaluate the effect of various parameters such as pH, dose of APNH, contact time, and interfering cations, anions and other agrochemicals. Freundlich and Langmuir isotherm and pseudo‐second‐order models were fitted to the equilibrium and kinetic data, respectively. Linear and nonlinear regression methods were also compared while nonlinear regression performed better for analyzing experimental data for both kinetic and isotherm analysis. This study illustrates a practical relevance in exploring the potentiality of activated peanut husk/shell to remediate water pollution by simulating the several environmental factors which can govern the real scenarios. © 2016 American Institute of Chemical Engineers Environ Prog, 36: 348–358, 2017
Association between breakfast omission and abdominal adiposity in low-income adolescents

ABSTRACT Objective To assess the association between breakfast omission, overweight/obesity, abdominal adiposity, and unhealthy lifestyle of low-income adolescents. Methods A cross-sectional population study involving 571 public school students aged between 15 and 19 years old. The habit of having breakfast was assessed using a form, checking the weekly frequency of a given meal and considered as breakfast omission when these adolescents did not have breakfast for at least 5 days in the past week. Sociodemographic and lifestyle variables (sedentarism, physical activity level, and sleep duration) were also assessed. Overweight/obesity was defined as a body mass index above a Z-score of +1, and the presence of abdominal adiposity was determined by a waist circumference/height ratio greater than 0.5. The association between breakfast omission and lifestyle variables was assessed using the chi-square test and a multivariate logistic regression of the anthropometric indicators. Results The omission of breakfast was found in 31% of the adolescents and was associated with physical inactivity (p<0.001). Regarding anthropometric indicators, breakfast omission was an independent factor for determining abdominal adiposity, with a 1.8 times greater chance of having this condition among those who omitted breakfast (p=0.037). Conclusions Omitting breakfast was frequent among the students assessed, and was associated with abdominal adiposity, a cardiometabolic risk factor. Investigation and early intervention are fundamental to change this behavior.
A behavioural in-depth analysis of ransomware infection

Ransomware is a type of malware that has spread rapidly over the last 4 years, causing significant damage, especially in Windows environments. It is designed to encrypt or block victim's data, including documents, backups, and databases, unless a ransom is paid. In this study, the authors present the results of their research on Windows crypto ‐ ran-somware during the last 3 years by exploring and discussing the relevant ransomware behaviours. The results of this study can be used to identify or to detect the ransomware. Indeed, these behaviours were extracted from in ‐ depth manual analysis of more than 20 ransomware families, including the known and the recent families. In addition, some extracted behaviours were automatically searched for more than 200 different ransom-ware collected during 2019.
Analysis of magnetically induced ELF current in biological spherical model with biomembrane

In this paper a biological three‐medium spherical model which consists of tissue, its membrane, and the extratissue medium is employed, and detailed distributions and characteristics of the induced current in the modeled structure are calculated by using a semianalytical solution developed for this model. It is demonstrated that both the change in the thickness and electrical properties of the biomembrane and the difference in conductivity between the inner and outer substances significantly affect the current passing through the membrane and the resultant profiles of the induced current. These analytical results are consistent with the experimental results, suggesting the influence of real membranes, and they indicate an important influence of the biomembrane on the induced current characteristics under specific membrane conditions. © 2001 Scripta Technica, Electr Eng Jpn, 135(2): 17–25, 2001
Forests to Faucets 2.0

The Forest to Faucets version 2.0 (F2FV2) assessment uses geospatial modeling at the 12-digit Hydrologic Unit Code (HUC12) scale in the conterminous United States to identify watersheds that are most important to surface drinking water, the ability to produce clean water, forest ownership (public or private), and potential threats to water yield from insects and diseases, wildfire, land use or climate change. F2FV2 updates a 2011 version of the project (Forests to Faucets version 1.0). Results, presented by regions administered by the U.S. Department of Agriculture, Forest Service, indicate that watersheds in the Eastern, Southern, and Pacific Southwest Regions were most important for surface drinking water. Watersheds in the Southern, Pacific Northwest, and Pacific Southwest Regions had the highest ability to produce clean water based on the five biophysical characteristics evaluated. The Pacific Southwest, Pacific Northwest, and Northern Regions had the most watersheds at the highest threat of wildfire as well as the most watersheds at the highest threat of insects and disease. For all future climate and population growth scenarios, the Southern, Pacific Southwest, and Eastern Regions had the most watersheds at the highest threat of land use change, while the Pacific Northwest and Southern Regions had the most watersheds at the highest threat of decreases in water yield because of climate change. F2FV2 provides a user-friendly tool and relatively high spatial resolution benchmark dataset that forest managers can use to evaluate the effect of their management on the water supply, and that water consumers can use for considering potential threats upstream.
Scale Up of High-Performance REBCO Tapes in a Pilot-Scale Advanced MOCVD Tool With In-Line 2D-XRD System

We have reported the development of an Advanced Metal-Organic Chemical Vapor Deposition (A-MOCVD) method featuring ohmic heating of the substrate for REBCO film growth, direct tape temperature monitoring, and laminar precursor flow. This A-MOCVD method has been used to fabricate 4–5 <inline-formula><tex-math notation="LaTeX">$\mu$</tex-math></inline-formula>m thick film REBCO tapes with record-high performance: critical currents exceeding 8700 A/12 mm at 30 K, 3 T; and engineering current density of 5200 A/mm<inline-formula><tex-math notation="LaTeX">$^2$</tex-math></inline-formula> at 4.2 K, 15 T. Recently, we constructed a pilot-scale reel-to-reel A-MOCVD system to scale up the technology to long tapes. Preliminary batches of tapes exhibit consistent performance and good uniformity along the length. An in-line 2D X-ray Diffraction (XRD) system has been integrated into the pilot A-MOCVD tool to monitor the REBCO texture and composition, RE<inline-formula><tex-math notation="LaTeX">$_2$</tex-math></inline-formula>O<inline-formula><tex-math notation="LaTeX">$_3$</tex-math></inline-formula> content, and the dimensions of BaMO<inline-formula><tex-math notation="LaTeX">$_3$</tex-math></inline-formula> (BMO, M=Zr,Hf) nanorods that act as artificial pinning centers. Specifically, the streaking angle between REBCO (103) and BZO (101) has been found to correlate well with (Ba+M)/Cu of the film, lift factor in critical current over a range of temperatures and magnetic fields, and the size of the BMO nanorods. The in-line 2D-XRD is expected to serve as a valuable quality measuring tool supporting realtime feedback control for the process to yield uniform and consistent manufacturing of high-performance REBCO tapes by Advanced MOCVD.
Vector Magnetic Field Sensors: Operating Principles, Calibration, and Applications

This review paper explores the most common technologies of vector magnetic field sensors. Specifically, the AMR, GMR, TMR, GMI, Hall, Fluxgate, Search Coil and SQUID sensors are considered. The physical phenomena that permit their operation as well as the structure and operating principles of each sensor are presented. In addition, the basic linear, time-invariant error sources of magnetic sensors are described along with some popular calibration techniques. Finally, some representative application examples of each sensor are described.
A short review of the genes involved in the development and progression of colorectal cancer

The extent and aggression of colorectal cancer is a worldwide public health threat. Extensive research has been conducted on the pre-requisites leading to this fatal cancer. An array of genes along with their mutations and the signal transduction pathways leading to the cellular transformation into the cancerous cells have been investigated. Based on the knowledge gained so far, present review shortly discussed the role of the major genes especially those are involved in instigating abnormalities in the cellular cycles, cellular proliferation and differentiation. A simple but novel molecular scheme of the colorectal cancer development has also been plotted.
Cuestionario de percepción de la formación pedagógica: estructura factorial y confiabilidad en académicos de la salud chilenos

Sujetos y métodos. Estudio cuantitativo, psicométrico, transversal. respondieron el cuestionario de percepción de la formación pedagógica (CPFP) más un cuestionario sociodemográfico, previo consentimiento informado, 117 docentes de grado del área de la salud, elegidos por muestreo no probabilístico por accesibilidad. se realizó un juicio de experto del cuestionario antes de la aplicación, y después de ésta se realizó un análisis factorial exploratorio.
Nanoemulsion formation and characterization by spontaneous emulsification: Investigation of its antibacterial effects on Listeria monocytogenes

Atransparent oil‐in‐water nanoemulsion system consisting of eucalyptus oil, Tween‐20 as organic phase and water as an aqueous phase was developed using a low energy emulsification method. Physicochemical properties such as droplet size, optical transparency, and long‐term stability was studied. The stable eucalyptus oil nanoemulsion (1:2) having mean droplet size in the range of 50-100 nm with a polydispersity index <0.2. The optimized nanoemulsion formulation exhibited significantly higher antibacterial activity by the well diffusion method against Listeria monocytogenes. Further, alteration in the membrane integrity was assessed, and it is found higher for nanoemulsion treated cells than control cells. Atomic force microscopic observations showed distorted morphology of treated bacterial cells. These results propose the possible use of eucalyptus oil nanoemulsion in the food industries. Key words: Antibacterial, eucalyptus oil, Listeria monocytogenes, nanoemulsion, spontaneous emulsification