Miracle-dz/UniFAR-FTUs huggingface dataset:
Artificial intelligence for the triage of COVID-19 patients at the emergency department: a systematic review

The aim of this article is to systematically analyze the available literature on the efficacy and validity of artificial intelligence (AI) applied to medical imaging techniques in the triage of patients with suspected or confirmed coronavirus disease 2019 (COVID-19) in Emergency Departments (EDs). A systematic review following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines was conducted. Medline, Web of Science, and Scopus were searched to identify observational studies evaluating the efficacy of AI methods in the diagnosis and prognosis of COVID-19 using medical imaging. The main characteristics of the selected studies were extracted by two independent researchers and were formally assessed in terms of methodological quality using the Newcastle-Ottawa scale. A total of 11 studies, including 14,499 patients, met inclusion criteria. The quality of the studies was medium to high. Overall, the diagnostic yield of the AI techniques compared to a gold standard was high, with sensitivity and specificity values ranging from 79% to 98% and from 70%to 93%, respectively. The methodological approaches and imaging datasets were highly heterogeneous among studies. In conclusion, AI methods significantly boost the diagnostic yield of medical imaging in the triage of COVID-19 patients in the ED. However, there are significant limitations that should be overcome in future studies, particularly regarding the heterogeneity and limited amount of available data to train AI models.
Finite symplectic actions on the K3 lattice

Abstract In this paper, we study finite symplectic actions on K3 surfaces X, that is, actions of finite groups G on X which act on H 2,0(X) trivially. We show that the action on the K3 lattice H 2(X, ℤ) induced by a symplectic action of G on X depends only on G up to isomorphism, except for five groups.
Studies Absorptive capacity: review and research agenda

: Absorptive capacity (ACAP) is one of the most valued concepts introduced in recent decades. This construct has been widely used and tested in different fields such as strategic management, knowledge management, open innovation and corporate entrepreneurship. Yet, there is less systematic review of the expanding body of knowledge on ACAP in recent years to aid us understand how and why this capacity can be utilised for organisational outputs. In this vein, this paper first reviews previous empirical studies on ACAP and provides an integrative model, synthesizing prior research. We then recongnise under-investigated themes and provide suggestions for future research.
Moderating Effect of Gender between MOOC-efficacy and Meaningful Learning

: This study looks at three key concepts in 21 st century e-education: MOOC-efficacy, meaningful learning, and gender among undergraduate students at Malaysian public universities. Its primary goal is to investigate the role of gender as a moderator in the relationship between MOOC-efficacy and meaningful learning. This study uses four criteria to define MOOC-efficacy (information searching, making queries, MOOC learning, and MOOC usability). Meanwhile, five dimensions are used to conceptualise meaningful learning (i.e., cooperative learning, active learning, authentic learning, constructive learning, and intentional learning). A cross-sectional survey design was used in this study. The data were collected using a 52-item questionnaire with reliability indices ranging from 0.822 to 0.890 for the dimensions. University students who volunteered to take part in the study and have prior experience using MOOCs make up the study's population. 603 students were chosen at random to represent the sample. Data analysis included the Structural Equation Modeling (SEM) test for moderation. The result indicates a change in the chi-square (Δ χ 2 ) value (0.779), which is lower than the chi-square (χ 2 ) critical value (3.841) at p < 0.05. This shows that gender did not emerge as a moderating factor of the relationship between MOOC-efficacy and meaningful learning among these students. An interesting finding includes the fact that males and females are provided an equal exposure and opportunity of education in Malaysia. There were no stereotyping and gaps in the educational treatment, opportunities and learning experience between gender.
Way of life and grouping practices of Bahima pastoralists

The Bahima in South Western Uganda used to move with their Ankole cattle, but nowadays most of them are settled. The Ankole cattle with its huge and white horns play a keyrole in the livelihoods of these families. This importance is reflected in the status of the cattle. These animals are multi-purpose animals, kept for milk and meat production, as a saving or are given away as dowry. Nowadays cattle keepers own their private land where they can graze their herds, which are still accompanied by a herdsman and guided by him to watering points. Responsibilities are shared between family members and hired workers. Although the lifestyle has changed dramatically over the last decades, cattle keepers are willing to keep these wonderful animals in the near future and preserve their heritage for future generations. study involved individual interviews with pastoralists based on questionnaires as well as focus group discussions. Data collec-ted between September 2004 and April 2005 in the Nyabushozi and Bukanga counties of Mbarara Disctrict in South-Western Uganda. This district forms the most eastern part of the cattle corridor in Uganda. Sixty cattle keepers were randomly selected through a combination of cluster and stratified sampling procedures and individually interviewed. The sampling procedure was based on a random sampling across parishes, taking into consideration the geographic distribution and economic situation of the households. open closed local Enume-rators and a pre-test was carried out before the survey conducted. animal cattle keepers were first asked to list the principal traits and then rank the five most important ones from 1 (most important) to 5 (least important). Focus group discussions were held, where different topics were discussed. One workshop was about herd management, human-animal-interaction and animal-animal-interaction. Local expressions for a specific animal behaviour or treatment were recorded. Another workshop covered activities related to livestock and agricultural production. Participants were asked to draw a seasonal calendar, indicating the rainfall patterns in the region and showing the most relevant activities. Each workshop was conducted with 8 to 12 persons and repeated in each county. All information was entered into a database.
Circular Building and New Business Models: What Opportunity for the Contractors? CIRCULAR BUILDING AND NEW BUSINESS MODELS: WHAT OPPORTUNITY FOR THE CONTRACTORS?

M and Andersson, R (2021) and Proceedings Social and political forces are advocating the need to shift towards circular economy, defined as a restorative and regenerative economic system where resources are retained and reused and which should replace the current linear economy of take, make and dispose. This is a radical change for the construction sector which has for a long time considered the management of waste as not been part of the tasks of the industry. Demolishing and recycling activities, usually considered as low value work, now received a renewed attention and construction companies are slowly developing new business propositions to include the reuse of waste. Building on the ongoing discussion on green business models, following Teece, we define business model as a ‘model’ which represents the organisational and financial ‘architecture’ of a business and includes implicit assumptions about customers, their needs, and the behaviour of revenues, costs, and competitors. Instead of focusing on innovation as an internal process, we understand this development as a dynamic process stretching outside company boundaries. Building on a longitudinal study of construction companies (2017-2020) active in the southwest part of Sweden, we propose to give an insight in how these companies are engaged in developing new business propositions focusing on circular economy, how these propositions have emerged and how they could be transformed in new businesses. The empirical material draws on a qualitative study of 11 companies gathering interviews with 35 practitioners, five sites visits and three observations of meetings and workshop. Our contribution aims at informing how the companies, investing in the dynamic processes of business models, can support innovation in the construction industry and participate to the development of circular economy but also to document what are the main challenges they face in doing so.
THE EFFECT OF CONTEXTUALIZATION ON THE IRANIAN EFL LEARNERS’ PERFORMANCE IN READING TASKS

It has been claimed that contextualization has a deep and tremendous influence on learners’ various language skills (Mayer, 2003; Ellis, 1994; Wisely, 2009). In the field of language learning/ teaching, contextualization occurs through bridging the ideas and concepts across courses. As Moltz (2010) remarks contextualization is a form of “deep learning” which aims to make the learning process profound, objective and meaningful through placing the target language in a vivid and realistic situation. The present study tries to propose a contextualized language teaching framework using oral tasks. Fifty six Iranian language learners, 23 boys and 33 girls at the intermediate level participated in this research; 28 in the experimental group (EG) and 28 in the control group (CG). The population was selected among the EFL learners studying English at a language institute for 8 terms. The research instruments composed of a) a TOEFL test, b) pre-tasks, c) reading tasks and d) post tasks the same as the reading tasks. The findings of the study compared in t-test substantiated and showed that the contextualization teaching framework had remarkably promoted the learners’ performance and enhanced the participants’ knowledge of English in grammar, vocabulary, reading comprehension and writing. The results revealed that this framework can be employed as an influential method in the English classes by the teachers, scholars and language instructors.
VirusEffective at Suppressing HIV and Simian Immunodeficiency Domains Are Phenotypically and Functionally Distinct and HIV-Specific CAR T Cells with CD28 or 4-1BB Signaling

Despite mounting a robust antiviral CD8 T cell response to HIV infection, most infected individuals are unable to control HIV viral load without antiretroviral therapy (ART). Chimeric Ag receptor (CAR) T cell treatment is under intensive investigation as an alternative therapy for ART-free remission of chronic HIV infection. However, achieving durable remission of HIV will require a successful balance between CAR T cell effector function and persistence. CAR T cells with CD28 costimulatory domains have robust effector function but limited persistence in vivo, whereas CAR T cells with 4-1BB costimulatory domains present a more undifferentiated phenotype and greater in vivo persistence. We compared the in vitro phenotype and function of rhesus macaque and human CAR T cells that contained either the CD28 or 4-1BB costimulatory domain; both constructs also included CARs that are bispecific for gp120 of HIV or SIV and the CXCR5 moiety to promote in vivo homing of CAR/CXCR5 T cells to B cell follicles. Cells were transduced using a gammaretroviral vector and evaluated using flow cytometry. 4-1BB-CAR/CXCR5 T cells were phenotypically distinct from CD28-CAR/CXCR5 T cells and showed increased expression of CAR and CD95. Importantly, both CD28- and 4-1BB-CAR/CXCR5 T cells retained equal capacity to recognize and suppress SIV in vitro. These studies provide new insights into rhesus macaque and human 4-1BB- and CD28-bearing CAR T
EVALUATION OF CHARACTER AND MORAL EDUCATION IN ELEMENTARY SCHOOL

The best time to start formal character and moral education is at elementary school. Character and moral education become guidelines for elementary school students to build a foundation for themselves when they have to face the future. Character and moral education in Indonesia has long been implemented, but evaluation is rare. It makes the program of character and moral education not done perfectly. This study aims to describe and evaluate the implementation of character-moral education in primary schools in Indonesia. There are three schools that are evaluated with teachers and principals as informans. Evaluation model used is evaluation of context, input, process, and output (CIPO). This model is considered best suited to the implementation of educational programs in schools. Evaluation results show that the three schools are able to apply character and moral education well in context, but there are still some obstacles to program input. It's like there is no government funding, poor school facilities, and uncertified teachers. In the process, the implementation of character and moral-based education can be clearly seen in co-curricular, extracurricular, literacy activities, and school-specific programs. Suggestions for related parties that need synergy between the school, parents, and community so that the values of character and morality can be consistently internalized in students.
Corporate tax-shields and capital structure: leveling the playing field in debt vs equity finance

A common feature within most corporate income tax systems is that the cost of debt is deductible as an expenditure when calculating taxable profits. An unintended consequence of this tax distortion is the creation of under-capitalized firms – raising default risk in the process. Using a difference-in-differences approach, this paper shows that a reduction in tax discrimination between debt and equity finance leads to better capitalized banks. The paper exploits the exogenous variation in the tax treatment of debt and equity created by the introduction of an Allowance for Corporate Equity (ACE) system in Italy, to identify whether an ACE positively impacts banks' capital structure. The results demonstrate that a move to an unbiased corporate tax environment increases bank capital ratios, driven by an increase in equity rather than a reduction in lending activities. The change also leads to a reduction in risk taking for ex-ante low capitalized banks. Overall, these results suggest that the ACE could be a valuable policy instrument for prudential bank regulators.
CONVECTIVE NATURE OF SUNSPOT PENUMBRAL FILAMENTS: DISCOVERY OF DOWNFLOWS IN THE DEEP PHOTOSPHERE

We study the velocity structure of penumbral filaments in the deep photosphere to obtain direct evidence for the convective nature of sunspot penumbrae. A sunspot was observed at high spatial resolution with the 1 m Swedish Solar Telescope in the deep photospheric C i 5380 Å absorption line. The Multi-Object Multi-Frame Blind Deconvolution method is used for image restoration and straylight is filtered out. We report here the discovery of clear redshifts in the C i 5380 Å line at multiple locations in sunspot penumbral filaments. For example, bright head of filaments show larger concentrated blueshift and are surrounded by darker, redshifted regions, suggestive of overturning convection. Elongated downflow lanes are also located beside bright penumbral fibrils. Our results provide the strongest evidence yet for the presence of overturning convection in penumbral filaments and highlight the need to observe the deepest layers of the penumbra in order to uncover the energy transport processes taking place there.
Role of High Sensitivity C-Reactive Protein (HS-CRP) as a Predictive Marker for Coronary Heart Disease Compared to Troponin I Disease in Sudanese Patients in Khartoum State.

Background: Heart disease may be a leading cause of death, but that do not mean we have to accept it as fate. Although many risk factors may appear to be as an earlier predictor for cardiac disease — such as family history, sex or age — but the laboratory and clinical evaluations are very important to have the final word. provide a novel method for detecting individuals at high risk of plaque rupture. Several large-scale prospective studies ( 1 )( 2 )( 3 ) considered that HS-CRP is a probable independent predictor of future myocardial infarction and stroke among apparently healthy men and women and that the addition of HS-CRP to standard lipid screening may improve global risk prediction among those with high as well as low cholesterol levels. Objectives: To measure the Sensitivity C-reactive protein ( hs-CRP ) in serum of and with risks of cardiac diseases and compare with troponin I. , ( hs-CRP 0.000 ) in coronary heart disease ( CHD ) subjects as compared to healthy controls and risk group. Mean levels of hs-CRP in CHD subjects, risk and healthy controls were 12.13 ±2.26 mg/L, 4.17±1.26 mg/L and 0.74±0.13 mg/L respectively
Adulthood cognitive trajectories over 26 years and brain health at 70 years of age: findings from the 1946 British Birth Cohort

Few studies can address how adulthood cognitive trajectories relate to brain health in 70-year-olds. Participants (n = 46 8, 4 9% female) from the 1946 British birth cohort underwent 18F-Florbetapir PET/MRI. Cognitive function was measured in childhood (age 8 years) and across adulthood (ages 43, 53, 60–64 and 69 years) and was examined in relation to brain health markers of β-amyloid (A β) status, whole brain and hippocampal volume, and white matter hyperintensity volume (WMHV). Taking into account key contributors of adult cognitive decline including childhood cognition, those with greater A β and WMHV at age 70 years had greater decline in word-list learning memory in the preceding 26 years, particularly after age 60. In contrast, those with smaller whole brain and hippocampal volume at age 70 years had greater decline in processing search speed, subtly manifest from age 50 years. Subtle changes in memory and processing speed spanning 26 years of adulthood were associated with markers of brain health at 70 years of age, consistent with detectable prodromal cognitive effects in early older age. © 2022 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ )
Quantum-gravity-induced matter self-interactions in the asymptotic-safety scenario

We investigate the high-energy properties of matter theories coupled to quantum gravity. Specifically, we show that quantum gravity fluctuations generically induce matter self-interactions in a scalar theory. Our calculations apply within asymptotically safe quantum gravity, where our results indicate that the UV is dominated by an interacting fixed point, with non-vanishing gravitational as well as matter couplings. In particular, momentum-dependent scalar self-interactions are non-zero and induce a non-vanishing momentum-independent scalar potential. Furthermore we point out that terms of this type can have observable consequences in the context of scalar-field driven inflation, where they can induce potentially observable non-Gaussianities in the CMB.
GALACTIC OUTFLOWS AND PHOTOIONIZATION HEATING IN THE REIONIZATION EPOCH

We carry out a new suite of cosmological radiation hydrodynamic simulations that explores the relative impacts on reionization-epoch star formation of galactic outflows and photoionization heating from a self-consistently grown extragalactic ultraviolet ionizing background (EUVB). We compare the predictions with observational constraints from the cosmic microwave background, the ultraviolet continuum luminosity function of galaxies, and the Lyα forest. By itself, an EUVB suppresses the luminosity function by less than 50% at z = 6 even if it is orders of magnitude stronger than observed. This overproduces the observed galaxy abundance by a factor of 3–5, indicating the need for an additional feedback process. We confirm that outflows readily suppress both the EUVB and the luminosity function into improved agreement with observations. Population I–II star formation can reionize the universe by z = 6 even in the presence of strong feedback from photoheating and outflows. The resulting EUVB suppresses star formation in halos with virial temperatures below 105 K but has a weaker impact on more massive halos. Nonetheless, halos with virial temperatures below 105 K contribute up to ∼50% of all ionizing photons owing to the EUVB's inhomogeneity. Overall, star formation rate scales with halo mass Mh as M1.3–1.4h for halos with Mh = 108.2–1010.2 M☉. This is a steeper dependence than is often assumed in reionization models, boosting the expected power spectrum of 21 centimeter fluctuations on large scales. The luminosity function rises steeply to at least M1600 = −13 even in models that treat both outflows and an EUVB, indicating that reionization was driven by faint galaxies (M1600 ⩾ −15) that have not yet been observed. Outflows and an EUVB interfere with each other's feedback effects in two ways. Outflows weaken the EUVB, limiting Jeans suppression of low-mass halos; this leads to overall de-amplification of suppression at early times (z > 8). Meanwhile, they amplify each other's impact on more massive halos, leading to overall amplification of suppression at later times. Our models cannot simultaneously explain observations of galaxies, the cosmic microwave background, and the intergalactic medium. Correcting for dynamic range limitations and adjusting our physical treatments will alleviate discrepancies, but observations may still require additional physical scalings such as a mass-dependent ionizing escape fraction.
Earth and Planetary Science Letters The deep Shumagin gap ﬁlled: Kinematic rupture model and slip budget analysis of the 2020 Mw 7.8 Simeonof earthquake constrained by GNSS, global seismic waveforms, and ﬂoating InSAR

provides a rare chance to understand rupture mechanics on such heterogeneously coupled faults. In this study, we examine the rupture process of the 2020 Simeonof earthquake with a combination of static GNSS displacements, InSAR displacements, high-rate GNSS waveforms and teleseismic waveforms. Due to the discontinuous nature of the deformation ﬁeld, we use InSAR data for individual islands and tie the displacement ﬁeld either to GNSS observations or keep these “ﬂoating”, i.e. we estimate an ambiguity parameter during the inversion. Our results demonstrated that the rupture process of this event is unidirectional, initiating at the hypocenter and propagating westward for about 130 s with an average rupture velocity of ∼ 1.9 km/s. The highest slip was centered below the Koniuji Islands and occurred between 20 s to 50 s after the rupture initiation. We ﬁnd that InSAR observations, especially “ﬂoating” data on near-ﬁeld islands, provide essential constraints for the slip inversion, building conﬁdence in the slipping of the less coupled region. Comparison with an existing and an alternative plate coupling model demonstrated that the remaining slip budget is unlikely to be able to generate a large event at depths from 30 to 40 km, as the Shumagin seismic gap has been mostly ﬁlled by the 2020 Simeonof earthquake at those depths. However, both coupling models suggest a substantial slip deﬁcit in shallow near trench regions, suggesting that a signiﬁcant earthquake can still occur. Seaﬂoor geodetic observations are required to further constrain the near-trench plate coupling. © 2021 Elsevier B.V. All rights reserved.