Miracle-dz/UniFAR-FTUs huggingface dataset:
Attitudes, Practices, and Perceptions towards Covid-19 Patients among Respiratory Therapists in Saudi Arabia

BACKGROUND: The coronavirus disease SARS-CoV-2 or COVID-19 has taken the lives of more than 3 million people across the world, with more than 160 million cases reported. Respiratory therapists (RTs) play an important role in the treatment of COVID19, including managing ventilators and administering breathing treatments. PURPOSE: The purpose of this study was to evaluate attitudes, practices, and perceptions about COVID-19 disease and the COVID-19 vaccine among respiratory therapists in Saudi Arabia. METHODS: The study utilized an online, cross-sectional survey with 36 questions administered to a convenience sample of RTs in Saudi Arabia. The survey is divided into five sections: attitudes, practices, perceptions, vaccination questions toward COVID-19 and demographics questions. Data was analyzed using descriptive statistics, independent samples t-test, and one-way ANOVA tests. A significance level was set at 0.05. All analyses were performed in SPSS version 27. RESULTS: The total sample consisted of 38 respiratory therapists consisting of three education levels: associate's degree (n=2, 5.3%), bachelor's degree (n=32, 84.2%), and master's degree (n=4, 10.5%). The majority of the participants were males (66 %, n=25), while the females comprised 34 % (n=13). The participants in the study had a mean age of 29.81 (SD ± 6.0). The mean and S.D. of experience as a respiratory therapist were (2.24, ±1.26). The respondents who worked in a public hospital were 27 (71.1%), while those in private hospitals were 11(28.9%). Thirty-six (94.7%) of the participant considered frontline providers, and only two (5.3%) participants declared that they were not. In this study, 32 out of 38 respiratory therapists had previously treated COVID-19 patients in Saudi Arabia. There were no statistically significant differences between male and female respondents in the attitude subscales. The statistically significant findings were found between male and female respondents in the practice subscales. CONCLUSION: In conclusion, the majority of respiratory therapists in Saudi Arabia showed positive attitudes and adequate practices regarding COVID-19 prevention and treatment. More studies are needed to assess the correlates of negative COVID-19 perceptions and vaccination among high-priority populations.
Khaleesi: Breaker of Advertising and Tracking Request Chains

Request chains are being used by advertisers and trackers for information sharing and circumventing recently introduced privacy protections in web browsers. There is little prior work on mitigating the increasing exploitation of request chains by advertisers and trackers. The state-of-the-art ad and tracker blocking approaches lack the necessary context to effectively detect advertising and tracking request chains. We propose K HALEESI , a machine learning approach that captures the essential sequential context needed to effectively detect advertising and tracking request chains. We show that K HALEESI achieves high accuracy, that holds well over time, is generally robust against evasion attempts, and outperforms existing approaches. We also show that K HALEESI is suitable for online deployment and it improves page load performance. Abstract We propose K HALEESI , a machine learning (ML) approach that captures the essential sequential context needed to effectively detect advertising and tracking request chains. We release K HALEESI ’s classiﬁcation code, ML model, browser extension, and data sets. Classiﬁcation code is written in Python 3.6, the ML model is trained using Scikit, the browser extension is written in JavaScript/HTML, and the data is crawled using OpenWPM.
Val109Asp polymorphism in Intelectin 1 gene is associated with coronary artery disease severity in women.

OBJECTIVE Intelectin-1 is an anti-inflammatory adipokine encoded by the Intelectin 1 (ITLN1) gene. Genetic variations in the ITLN1 gene affect the risk of coronary artery disease (CAD) and related CAD risk factors. In this study, we aimed to investigate whether the ITLN1 gene Val109Asp polymorphism has an effect on the severity of CAD and serum lipid levels in both men and women. METHODS A total of 493 subjects who underwent coronary angiography (43.5% women, mean age 63.1±9.5 years) were grouped as individuals with critical CAD (≥70% stenosis, n=202), non-critical CAD (31%-69% stenosis, n=90), and non-CAD (control group) (1%-30% stenosis, n=201). Genotyping was performed using LightSNiP assay in Real-Time PCR. RESULTS The frequency of the Val allele was significantly different among all the patients with critical CAD (n=41) and non-CAD control (n=51) groups in women (p=0.033) but not in men (n=77 and n=38). Women with the Val allele had a 1.69-fold increased risk for critical CAD (p=0.033). In addition, the presence of Val allele was associated with higher coronary stenosis after adjustment for several confounders only in women with critical CAD (p=0.025). Furthermore, carriers of the Val allele exhibited an increased low-density lipoprotein cholesterol (LDL-C) in men with critical CAD than in those with non-CAD (p<0.05). CONCLUSION These results suggest that the Val allele of the ITLN1 Val109Asp polymorphism is associated with critical CAD and high LDL-C levels in our study population. Further studies are required to elucidate the effect of Val109Asp polymorphism on CAD pathogenesis.
A Compiler for Sound Floating-Point Computations using Affine Arithmetic

Floating-point arithmetic is extensively used in scientific and engineering applications to approximate real arithmetic. Unfortunately, floating-point arithmetic is not a sound implementation of real arithmetic, i.e., it may produce different results, does not provide error guarantees, and the errors can become arbitrarily large. In this paper, we introduce SafeGen, a source-to-source compiler that rewrites a given C program using floating-point arithmetic to an efficient C program performing the same computation soundly, i.e., it returns an error bound that is guaranteed to contain the correct result of the program if it had been executed in real arithmetic. Equivalently, it gives a precision certificate on the number of correct bits in the result. SafeGen uses affine arithmetic (AA) that keeps accuracy high compared to interval arithmetic by preserving linear correlations between variables. To mitigate its high cost, SafeGen combines a novel form of static analysis to identify these correlations with a flexible policy-based approach for their selection. SafeGen supports SIMD intrinsics in the input and can output SIMDoptimized code. Our results show that SafeGen-generated code is 30–70 times faster than manually rewritten code using AA libraries. Equivalently, SafeGen can offer many more bits of certified accuracy within a reduced time budget.
'Til Dowry Do Us Part: Bargaining and Violence in Indian Families

We develop a non-cooperative bargaining model with incomplete information linking dowry payments, domestic violence, resource allocation between a husband and a wife, and separation. Our model generates several predictions, which we test empirically using amendments to the Indian anti-dowry law as a natural experiment. We document a decline in women's bargaining power and separations, and a surge in domestic violence following the amendments. These unintended effects are attenuated when social stigma against separation is low and, in some circumstances, when gains from marriage are high. Whenever possible, parents increase investment in their daughters' human capital to compensate for lower dowries.
TRRM_A_336917 7..19

1Department of Ophthalmology, King Abdullah Medical City, Manama, Kingdom of Bahrain; 2Department of Surgery, College of Medicine, Manama, Kingdom of Bahrain; 3Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA, USA; 4Department of Pathology, Salmaniya Medical Complex, Manama, Kingdom of Bahrain; 5Department of Microbiology, Immunology & Infectious diseases, College of medicine, Arabian Gulf University, Manama, Kingdom of Bahrain
EXPERIMENTAL EVALUATION OF USING SOME ORGANIC ACIDS AGAINST SALMONELLA INFECTION IN BROILER CHICKENS

A total 110 one-day-old chicks were used in this study to investigate antibacterial effects of organic acid (formic and propionic acid) either alone or together against Salmonella pullorum (Sal. pullorum). 10 chicks were slaughtered and examined bacteriologically to prove that chicks free from salmonella, the remender100 broiler chicks were divided into 5 groups (20 chicks/each), 1st group healthy chicks (negative control), At 14 th day of age broilers in group 2nd, 3rd, 4th and 5th experimentally infected with Sal. pullorum, 2nd group infected chicks (positive control), 3rd group chicks received 0.1 ml formic acid /liter drinking water from 1st to 35th day of age and infected with Sal. pullorum, 4th group chicks received 0.1 ml propionic acid/liter drinking water from 1st to 35th day of age and infected with Sal. pullorum. 5 t h group received formic acid and propionic by same dose, period and route of infection with Sal. pullorum. At 1st day post supplementation 5 chicks from each group were slaughtered and two blood samples were taken for estimation of hematobiochemical parameters. Cloacal swabs were collected for salmonella reisolation. Infected broilers showed clinical signs represented by anorexia, closed eyes diarrhea, dehydration, mortality rate 30% and reduction in body weight gain, RBCs, Hb, PCV%, MCHC, lymphocytes total protein, albumin , CAT and SOD beside significant increase in FCR, MCV, MCH, WBCs, heterophil, monocyte globulin, ALT, AST, ALP, uric acid ceatinine and MDA, associated with insignificant decrease in esinophil and basophil. Broilers received formic acid or propionic acid either alone or together for 35 days and infected with Sal. pullorum showed no clinical signs, insignificant decrease in RBCs, Hb, PCV%, MCHC, lymphocyte eosinophil, T. protein, albumin, A/G ratio, CAT, SOD and insignificant increase in weight gain, MCV, MCH,WBCs, heterophil, basophil, monocyte globulin, ALT AST, ALP, uric acid, creatinine and MDA, improved FCR, reduced mortality rate to 5% but both acids together induced zero mortality beside reduction in re-isolation of Sal. pullorum. It could be concluded that, formic and propionic acid play an important role in control of salmonellosis in broiler and act as growth promoters beside improved hematobiochemical parameters so we recommend using formic acid and propionic acid allover fatting period. Keyword: Sal. Pullorum-formic propionic-hematobiochemical – broiler chickens Corresponding author: Halla, M. Khalil E-mail address: dremanismail201@gmail.com Present address: Biochemistry Department, Agriculture Research Center (Animal Health Research I nstituteZagazig Branches)
A new ultra-fast HVDC Circuit breaker for meshed DC networks

One of the major challenges of realising a Multi-Terminal DC grid has been the lack of a suitable HVDC Breaker. Previous designs of HVDC breaker were either too slow to be suitable for interrupting fast-rising fault currents or had conduction losses too high for economically viable operation on a grid. However, the new class of "hybrid" DC circuit breakers has fundamentally changed this position, with the potential of interrupting fault currents in a few milliseconds with negligible steady-state power losses. As part of the EU-funded "Twenties" project, Alstom Grid has built and tested a 120kV prototype DC breaker. The design of the breaker and the results obtained during testing are described in the paper.
F-FDG PET/CT Based Quantitative Parameters as Predictive Biomarkers for KRAS Mutations in Metastatic Colorectal Cancer

Background: Metastatic colorectal cancer (mCRC) patients with positive KRAS genomic mutations should not receive antiepidermal growth factor receptor (EGFR) monoclonal antibodies, as stated by the American Society of Clinical Oncology. However, there are some limitations to KRAS mutation testing. Few published studies evaluating the correlation between 18 F-FDG PET/CT imaging and KRAS expression in mCRC patients have yielded conflicting results. Aiming to clarify whether 18 F-FDG PET/CT scan can be used as a surrogate biomarker for KRAS status in mCRCs in order to optimize treatment strategies, this study explored this relationship. Patients and Methods: This prospective study included 38 patients (26 males and 12 females) with mCRCs and known KRAS mutational status; all of them underwent pretreatment 18 F-FDG PET/CT imaging. Maximum standardized uptake value (SUVmax), total lesion glycolysis (TLG) and metabolic tumor volume (MTV) of metastatic lesions with the highest FDG uptake were analyzed. Results: SUVmax was significantly higher in the mutated KRAS than in the WT-KRAS group (13.1±11.9 vs. 7.01±4.2, respectively; P=0.016). There was an increase in the mean values of MTV and TLG in the KRAS mutant group, albeit without statistical significance (P= 0.450 and 0.908, respectively). Egyptian J. Nucl. Med., Vol. 23, No. 2, December 2021 75 Thus, SUVmax was the only PET/CT parameter that could predict KRAS mutations (OR: 1.180, 95% CI: 1.006-1.384; P= 0.041). SUVmax cutoff value of >8.8 (AUC of 0.728) yielded the best accuracy (72.8%), with 58.8% sensitivity and 81.0% specificity in predicting KRAS mutations. Conclusion: The accumulation of 18 F-FDG was significantly higher in metastatic lesions of CRCs with positive KRAS mutations. We propose that 18 F-FDG PET/CT based SUVmax could be used as a non-invasive surrogate biomarker for KRAS genomic expression in mCRC patients to aid in treatment selection.
Is psychological adaptability needed for high school students in disaster-prone areas of Mount Merapi Eruption?

One of the disaster events that has a clear cycle is the eruption of Mount Merapi. Despite having a clear cycle, students are still one of the vulnerable groups during the eruption of Mount Merapi. The vulnerability of students will ultimately affect the psychological condition of students. Many researchers have found that the psychological condition of students who experience a disaster will return to normal in a long period of time, around 4-5 years. Therefore, this study aims to determine whether psychological adaptation skills are needed for high school students in areas prone of the Mount Merapi. The case study design was used in this study to determine students’ perceptions of their psychological adaptability. The number of respondents used was 364 students that spread across 15 high schools and located in disaster-prone areas 1 to 3 of Mount Merapi. Questionnaires were used as a data collection technique, and data analysis was carried out using descriptive analysis. The analysis result shows that about 56.20% of respondents feel the need to have disaster adaptation capabilities. The existence of disaster adaptation is expected to help respondents who do not know good stress management when dealing with the eruption of Mount Merapi. Psychological disaster adaptation will affect the readiness of students t deal with disasters. The existence of psychological adaptation will encourage high school students to become a generation that is resilient to disaster because with psychological adaptation, students will more easily adjust their psychological conditions when a disaster occurs.
Ambient loading and modal parameters for the Chulitna River Bridge

The Chulitna River Bridge is a 790-ft five girder, five-span steel bridge on the Parks Highway between Fairbanks and Anchorage, Alaska. This bridge was built in 1970 and widened in 1993. Under the no-live load condition, five support bearings are not in contact. Heavily loaded trucks often travel across this bridge to the oil fields in Prudhoe Bay, Alaska. A virtual finite element modeling, dynamic field testing of the “ambient vibrational response,” and structural health monitoring system are used to analyze, evaluate, and monitor the structural performance. As the first stage of the research, this article presents results from the dynamic testing and evaluation of the structural responses of the bridge. In the dynamic field testing, 15 portable accelerometers were placed on centerline along the bridge length to record the structural response, and an ambient free-decay response was used to evaluate the dynamic properties of the bridge structure. Natural frequencies and modal damping ratios were identified and characterized using Hilbert–Huang transform and fast Fourier transform methods. Compared with conventional approaches, this study demonstrates that (1) the Hilbert–Huang method was found to be effective and suitable for modal parameter identification of a long steel girder bridge using ambient truck loading; (2) the nonlinear damping was, for the first time, identified based on Hilbert–Huang transform’s amplitude–time slope; (3) modal frequencies are very sensitive to sensor location so their position should be optimized.
Assessing urban heat island in Jakarta, Indonesia during the pandemic of Covid-19

Jakarta, the capital city of Indonesia, is the most populated area in Indonesia, with a population of 10.56 million people or around 3.91% of the total Indonesian population. Jakarta has also become an important city in Indonesia as around 80% of Indonesian economic activity is located in this area. No doubt, the urban activity caused the air pollution to infuriate its microclimate, including the urban heat island phenomena. During the Covid-19 pandemic, Indonesia applied the partial lockdown for several areas to decrease virus transmission. Most of the transportation and commercial areas were closed, and most people worked from home. This significant shifting will affect the temperature and urban heat island conditions. Thus, the main objective of this research was to analyse the urban heat island during the early stage of the pandemic in Jakarta. We used Landsat 8 imagery to extract the land surface temperature (LST) and generated the urban heat island (UHI). The correlation was used to determine the relationship between the distribution of covid-19 cases with the UHI distribution. From the four different recording times (May, July, September, and December 2020) of Landsat 8 imagery, the highest UHI, 7.76°C was found in December 2020 (the late first year of the pandemic). The lowest UHI, 4.91°C was found in May 2020 (The early stage of the first year). Furthermore, the UHI hot spot moved from almost evenly in East Jakarta in May 2020, a tiny spot in East Jakarta in July and September 2020, and evenly distributed in Southeast Jakarta in December 2020. In addition, we found that the increase of covid-19 cases had a positive correlation with the UHI in Jakarta, which means the areas with the high UHI value have high new covid-19 cases. These results showed that the area with high activities is very prone to covid-19 transmission.
Physical Regimes of Two-dimensional MHD Turbulent Reconnection in Different Lundquist Numbers

Using two-dimensional MHD simulations in different Lundquist numbers S, we investigate physical regimes of turbulent reconnection and the role of turbulence in enhancing the reconnection rate. Turbulence is externally injected into the system with varying strength. Externally driven turbulence contributes to the conversion of magnetic energy to kinetic energy flowing out of the reconnection site and thus enhances the reconnection rate. The plasmoids formed in high Lundquist numbers contribute to the fast reconnection rate, as well. Moreover, an analysis of the power of turbulence implies its possible association with the generation of plasmoids. Additionally, the presence of turbulence has great impact on the magnetic energy conversion and may be impactful also for the Kelvin–Helmholtz instability in the magnetic reconnection process.
Assessment of the partial discharges impact on the new type 20 kV busbar with cast insulation

The article considers the partial discharges impact on busbars of voltage class 20 kV. The composition of a new type insulation includes a dusty inert material, which contributes to an increase in electrical strength. As a result of the tests carried out, the amplitude of partial discharges was recorded. It did not exceed the standard values. Also, areas of partial discharges high-amplitude values were recorded less than busbars without filler.
Distinctions Between Two Types of Self Excited Gas Oscillations in Vaneless Radial Diffusers

Experiments were conducted to determine the characteristics of oscillating flows in a centrifugal compression system with vaneless diffusers. The system was operated without a diffuser and with eight different diffuser configurations to determine the effects of diffuser diameter and width ratios on the unsteady behavior of the system. Mean and fluctuating velocity and static pressure measurements were carried out in the time and frequency domains. The system without a diffuser was found to be stable at all operating conditions. The installation of any of the eight diffusers resulted in the generation of self-excited oscillations at some operating conditions. It was found that the critical flow coefficient at which onset of oscillations was observed increased as the diffuser width ratio was decreased and as the diameter ratio was increased. Comparison between the characteristics of the oscillations observed in the present study and those observed by other investigators indicate that rotating stall in two geometrically similar diffusers can be an order of magnitude different in the non-dimensional rotational speed and level of unsteady pressure fluctuations. These differences point towards the possibility of existence of more than one set of flow conditions which could lead to the occurrence of the unsteady phenomena.Copyright © 1979 by ASME
The control of bearing stiffness using shape memory

The problem addressed in this paper is the control of the effective stiffness of a bearing pedestal by means of a series of shape memory alloy wires. The bearing is mounted on elastomer O-rings whose preload (and hence stiffness) is controlled by a set of shape memory allow wires. In the first part of the paper a discussion of the rig design is given together with the predictive calculations of performance. These predictions are then compared with measurement taken from the rig. Steady state and transient solutions are examined in order to ascertain the likely requirements in terms of heating and cooling rates. Having established the viability of this technology, options for extending the design to control stiffness in both orthogonal directions are discussed together with an assessment of the future problems and potential benefits of extending this study.
Extracorporeal shock wave lithotripsy for the treatment of urinary lithiasis in children

Introduction: Extracorporeal shock wave lithotripsy (ESWL) is an option for the treatment of urinary lithiasis. Objective: To describe the outcomes of ESWL for the treatment of urinary lithiasis in children. Methods: A descriptive and retrospective study of 51 patients with urinary lithiasis that underwent ESWL from 2014 to 2019. Results: Males and 15–18-year-old patients prevailed; 27.4% had prior surgery; 10-20 mm lithiasis of renal location and density between 400-799 HU were the most common; a double J stent was the most utilized urinary derivation prior to lithotripsy treatment; 7.8% required retreatment; 13.7% additional interventions; the stone-free rate was 74.5% at one month and 92.2% at three months. The size of the lithiasis was associated with the success of the treatment (p<0.023). The most frequent complication was steinstrasse; endourologic procedures were the most utilized, grade III b (Clavien-Dindo) prevailed and were associated to older patients (p=0.04), renal lithiasis localization (p=0.017), larger size (p=0.08), and density(p=0.036). Conclusions: ESWL is effective and safe for treating urinary lithiasis in children. Its success was significantly associated to smaller stone size and its complications to patients of older age, larger stone size, density and renal localization of the lithiasis.