Miracle-dz/UniFAR-FTUs huggingface dataset:
Experimental investigation of post-buckling behavior of composite column with top-hat cross-section

The object of this study is a thin-walled beam made of carbon-epoxy composite with open cross-section. The material used was a composite of epoxy matrix reinforced with carbon fiber (system HexPly M12, Hexcel). The M12 system is used above all in aircraft structures. It exhibits high fatigue durability and good maintenance properties at relatively low specific gravity. The research was lead as the FEM numerical analyses and experimental tests in buckling and post-buckling state, as well. In the conducted research in order to evaluate the effort ratio of the composite the Tsai-Wu tensor criterion was exploited. The numerical tool used was the ABAQUS software.
Ong construction for the reconstructed Fermi surface of underdoped cuprates

Using the Ong construction for a two-dimensional metal, we show that the sign change in the Hall coefﬁcient R H of underdoped hole-doped cuprates at low temperature is consistent with the emergence of biaxial charge order recently proposed to explain the observation of low-frequency quantum oscillations. The sharp evolution of R H with temperature, however, can only be reconciled by incorporating a highly anisotropic quasiparticle scattering rate. The magnitude and form of the scattering rate extracted from the ﬁtting imply that those quasiparticles at the vertices of the reconstructed pocket(s) approach the boundary of incoherence at the onset of charge order.
Assembly bias of dwarf-sized dark matter haloes

Previous studies indicate that assembly bias effects are stronger for lower mass dark matter haloes. Here we make use of high resolution re-simulations of rich clusters and their surroundings from the Phoenix Project and a large volume cosmological simulation, the Millennium-II run, to quantify assembly bias effects on dwarf-sized dark matter haloes. We find that, in the regions around massive clusters, dwarf-sized haloes ($[10^9,10^{11}]\ms$) form earlier ($\Delta z \sim 2$ in redshift) and possess larger $V_{\rm max}$ ($\sim20%$) than the field galaxies. We find that this environmental dependence is largely caused by tidal interactions between the ejected haloes and their former hosts, while other large scale effects are less important. Finally we assess the effects of assembly bias on dwarf galaxy formation with a sophisticated semi-analytical galaxy formation model. We find that the dwarf galaxies near massive clusters tend to be redder ($\Delta(u-r) = 0.5$) and have three times as much stellar mass compared to the field galaxies with the same halo mass. These features should be seen with observational data.
Cross-Sectional Equity Correlations and the Value of Active Management

This article examines the cross-sectional correlations among equities and relates them to the performance of actively managed mutual funds. When the average correlation between equities’ returns is higher, there is less opportunity for active management to outperform. Consistent with this, the authors find that actively managed mutual funds generate lower abnormal returns when the average cross-sectional correlation is high. This result holds for both small and large funds, within various subperiods, and when controlling for fund fixed effects. The authors’ results have implications for investor portfolio allocation during periods such as the 2020 COVID-19 panic. TOPICS: Factors, risk premia, factor-based models, mutual funds/passive investing/indexing, mutual fund performance Key Findings • The average correlation between the returns of each individual stock and the market varies over time and influences the opportunities for active management. • We find evidence of stronger average equity mutual fund performance when the average correlation across publicly traded equities is low. • The impact of return correlation on fund performance is greatest among funds with low total net assets, which are less impacted by liquidity effects.
Young Married Women’s Perceptions On The Maeanings And Motivations For Their Husbands’ Opposition To Their Modern Contraceptive Use In Malawi

Abstract The aim of the study was to examine the perceptions of young married women on meanings and motivations of partner opposition to their contraceptive use. Qualitative data was collected from focus group discussions and individual in-depth interviews with young married women and key informant interviews with health workers and traditional leaders in the districts of Ntcheu, Mangochi and Zomba in Malawi. Thematic data analysis was done using ATLAS ti software version 7. The results show that partners’ opposition to young married women’s use of contraceptives was perceived to be principally motivated by their husbands’ quest to control the sexual and reproductive lives of their spouses. Related to this aspect are the fears and misconceptions that use of modern contraceptives would relieve young married women of the fear of engaging in extra marital affairs as they would no longer be afraid of being discovered through pregnancy. Hence, the opposition was perceived to safeguard their marriages from instability and dissolution. The paper asserts that there should be a shift in the family planning programme delivery in the country aimed at reducing or eliminating partner opposition to young married women’s contraceptive use through involvement and inclusion of partners in the designing and implementation of contraceptive information and service provision interventions.
Cardiovascular assessment in horses sedated with xylazine or amitraz

Cardiovascular effects due to intravenous (IV) xylazine (1.0mg/kg) or amitraz (0.1 or 0.4mg/kg) were evaluated in horses. Left ventricular function indexes, heart rate (HR), and cardiac output (CO) were measured by echocardiography. Second degree atrioventricular (AV) block was detected by electrocardiography. Invasive arterial blood pressure (AP) was also evaluated. All parameters were measured immediately before and during 60 minutes after drug injection. HR, CO, and second degree AV block were different between xylazine and amitraz-0.4mg/kg groups. Xylazine induced initial hypertension 10 minutes after injection, and hypotension was observed 30 minutes after amitraz0.4mg/kg administration. Except for the second degree AV block which occurred only at five minutes, there was no change in the echocardiographic measurements after administration of amitraz-0.1mg/kg. Thus, amitraz-0.4mg/kg and xylazine (1.0mg/kg) induced similar cardiovascular side effects, but longlasting action of amitraz-0.4mg/kg in the cardiovascular system was observed.
An Improved Method for Taxonomy Development in Information Systems

Theories of information systems (IS) can be categorized into five types: analytic, explaining, prediction, explaining and prediction, and design and action theory. A taxonomy could be considered a type of analysis theory which specifies the dimensions and characteristics of objects of interest by defining their shared features. Developing a taxonomy can be well suited to Design Science Research (DSR), since the primary goal of DSR is to develop an artifact. DSR is a scientific method that attempts to combine knowledge about the design and development of a solution to enhance existing systems, solve problems, and create a new artifact, such as a taxonomy. Taxonomy is crucial for understanding any phenomenon. It provides a holistic view of that phenomenon, and the classification of objects helps researchers and practitioners to understand complex domains. Nickerson, Varshney and Muntermann offered a method to develop a taxonomy based on well-established literature. Their method considered the only well-established taxonomy development method in the IS discipline. However, the literature reveals that the taxonomy development process in IS research often remains vague and taxonomies are rarely evaluated. This paper aims to improve the taxonomy development method by adopting comprehensive steps from DSR. This includes developing an integration framework for all forms of reasoning logic that are used for developing taxonomy components. The improved method supports creativity by including abduction as a reasoning logic. It also facilitates the efforts of developing a taxonomy for novice researchers by providing a complete taxonomy development roadmap.
Editorial Note on Clinical Pediatrics: Open Access

Clinical Pediatrics: Open Access (CPOA) is a peer-reviewed medical journal of pediatrics that was established in 2016. It is published tri annually by Longdom Publications and edited by Dr. Fuyong Jiao, Professor and Head of Department of Pediatrics at Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, China. The journal is successfully publishing its Volume 5 Issue 2. Since the journal was established, CRFA has published in excess of 100 topical and interesting theoretical and Empirical Papers has been published with broad scope, encompassing all the areas of diagnosis and treatment system associated with Pediatrics.
UvA-DARE ( Digital Academic Repository ) Assisted reproductive technologies in Ghana

The article sketches the origins and development of IVF in Ghana as a highly transnational undertaking. Movements are from and to Africa, involving human beings (providers and users), and also refer to other entities such as technologies, skills and knowledge. None of these movements are paid for using public money, neither are they subsidized by international health organizations. Currently, ‘more affordable’ IVF is being introduced into Ghana, on initiative of the first Association of Childless Couples of Ghana (ACCOG), in collaboration with the Belgium based non-profit organization the Walking Egg (tWE), representing another form of transnational networking. The article underlines the scarcity of well-trained embryologists in Ghana, which turns the embryologists’ expertise and skills into a scarce and precious commodity and guarantees this expertise becomes a major challenge for the directors of the private clinics. Next to local Ghanaian couples, the clinics also attend to transnational reproductive travellers, including women and men from neighbouring countries and Ghanaians in the diaspora returning to their country of origin. Their manifold motivations to cross borders and visit the IVF clinics in Ghana provide insight into the structural conditions impeding or facilitating the use of assisted reproductive technologies at different local sites. Transnational movements also include the flow of new procreation practices (such as surrogacy and the use of donor material), which (re-)shape existing cultural and societal notions regarding kinship and the importance of blood/genetic ties. Finally, the article lists a number of thematic and theoretical issues which require further exploration and studies. © 2016 The Author. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Towards a framework for testing general relativity with extreme-mass-ratio-inspiral observations

Extreme-mass-ratio-inspiral observations from future space-based gravitational-wave detectors such as LISA will enable strong-field tests of general relativity with unprecedented precision, but at prohibitive computational cost if existing statistical techniques are used. In one such test that is currently employed for LIGO black-hole binary mergers, generic deviations from relativity are represented by $N$ deformation parameters in a generalised waveform model; the Bayesian evidence for each of its $2^N$ combinatorial submodels is then combined into a posterior odds ratio for modified gravity over relativity in a null-hypothesis test. We adapt and apply this test to a generalised model for extreme-mass-ratio inspirals constructed on deformed black-hole spacetimes, and focus our investigation on how computational efficiency can be increased through an evidence-free method of model selection. This method is akin to the algorithm known as product-space Markov chain Monte Carlo, but uses nested sampling and improved error estimates from a rethreading technique. We perform benchmarking and robustness checks for the method, and find order-of-magnitude computational gains over regular nested sampling in the case of synthetic data generated from the null model.
Life cycle of superfluid vortices and quantum turbulence in the unitary Fermi gas

The unitary Fermi gas (UFG) offers an unique opportunity to study quantum turbulence both experimentally and theoretically in a strongly interacting fermionic superfluid. It yields to accurate and controlled experiments, and admits the only dynamical microscopic description via time-dependent density functional theory (DFT) - apart from dilute bosonic gases - of the crossing and reconnection of superfluid vortex lines conjectured by Feynman in 1955 to be at the origin of quantum turbulence in superfluids at zero temperature. We demonstrate how various vortex configurations can be generated by using well established experimental techniques: laser stirring and phase imprinting. New imagining techniques demonstrated by the MIT group [Ku et al. arXiv:1402.7052] should be able to directly visualize these crossings and reconnections in greater detail than performed so far in liquid helium. We demonstrate the critical role played by the geometry of the trap in the formation and dynamics of a vortex in the UFG and how laser stirring and phase imprint can be used to create vortex tangles with clear signatures of the onset of quantum turbulence.
Application of NIR spectroscopy in gluten detection as a cross-contaminant in food

The determination of gluten is of critical importance when food screening is intended for special groups such as food ingredient intolerant and allergic persons. Cross-contamination of food that does not contain gluten is also possible in the sales chain. The aim of this study was to determine the applicability of Near-Infrared Spectroscopy (NIRs) for the detection of gluten traces in rice, rice flour, corn flour and corn grits. In the cross-contamination simulation, two types of wheat flour were used. They were added to rice, rice flour, corn flour and corn grits in a range from 5 % to 30 %. Apart from the spectra of pure and contaminated samples, conductivity and total dissolved solids were monitored to determine changes in the samples. NIR spectroscopy was combined with chemometric techniques to determine at which wavelengths a glutenfree fingerprint can be detected. Although experiments were carried out with a NIR instrument that monitors molecular vibrations in the range of λ= 904-1699 nm, the gluten fingerprint was successfully determined, regardless of the type of flour that was added to the rice, rice flour, corn flour and corn grits. All concentrations of the added flours were successfully determined and models were developed to detect the concentrations of the added flours. Even the conductivity showed good prediction potential in gluten determination. Regardless if the investigated samples were contaminated or not, the determination coefficient R2 was over 0.9. Developed models could be used to predict possible wheat flour contamination of any rice or corn product samples or samples prepared for cooking in water.
Surface and Morphological Investigation of Synthesized Nanostructured Ridges from Electrospun Polyvinyl Alcohol-Albumin Blend—A Taguchi Design of Experiment Approach

We report the synthesis of presumably a “nanoridge” from the electrospinning of a hydrophilic polymer–protein blend. The material exhibits vertical elevation from the substrate, distinct from the morphologies seen in electrospinning. It is hypothesized that the formation of the nanostructured ridges is due to the migration of the charged protein to the apex through a highly polarized electric field in electrospinning conditions. In this study, we assessed the polyvinyl alcohol–egg albumin (PVA–EA) system in a solvent comprising of water, formic and acetic acid, together with the tip-to-collector distance (TCD) and solution flowrate. To quantify the factor effects in the surface properties of the material, a Taguchi design of experiment was used. The ridge heights observed ranged from 84.8–639.9 nm, and the material height is predominantly affected by the PVA–EA ratio and solution flow rate. The root mean square roughness was influenced by the TCD and flow rate, which has values ranging from 11.37–57.56 nm. In evaluating the sharpness of the ridge, we used the radius of curvature, where the TCD highly affects the apex sharpness. The work offers not just a likely new class of morphology, but a new perspective on the surface characterization of an electrospun material which could affect the performance of such a use in biological and physical systems.
Quality assurance of medical education: Lessons learned from use and analysis of the WFME global standards

Abstract Background: In 2003, the World Federation for Medical Education (WFME) published the Trilogy of Global Standards for Quality Improvement of Medical Education, covering all three phases of education in medicine. The intention was to provide an instrument to be used by medical schools and responsible authorities in quality assurance and improvement of medical education. The standards were revised in 2015. Results: This paper reviews 29 published articles dealing with the practical use and analysis of the standards. 21 papers deal with basic medical education, six with postgraduate medical education and two with CPD. Conclusion: It is concluded that using the WFME standards can be a profitable endeavor with documented impact. Standards should be used as intended, i.e. as a template modified with local specifications.
Neuromyelitis optica spectrum disorders: still evolving and broadening

Purpose of review The diagnostic criteria of neuromyelitis optica spectrum disorders (NMOSD) has been revised in the past 20 years and pathological and therapeutic data have been accumulated. This review provides an overview of evolution and broadening of the concept of NMOSD. Recent findings NMOSD encompassing brain syndrome as well as optic neuritis and acute myelitis is now classified into aquaporine-4 (AQP)-antibody-seropositive and aquaporine-4 (AQP)-antibody-seronegative diseases, detecting more patients earlier than before. Seronegative NMOSD includes cases of myelin oligodendrocyte glycoprotein (MOG)-antibody-seropositive disease with its unique clinical spectrum somewhat different from AQP4-antibody-seropositive NMOSD. Pathologically, NMOSD includes AQP4-antibody-seropositive autoimmune astrocytopathic disease and MOG-antibody-seropositive inflammatory demyelinating disease. Double seronegative group needs further research. Therapeutic options of NMOSD has taken shape and first-ever clinical trials of monoclonal antibodies have been done. In retrospect, relapsing NMO in the studies preceding the discovery of AQP4-antibody had features of AQP4-antibody-seropositive NMO whereas monophasic NMO was similar to AQP4-antibody-seronegative/MOG-antibody-seropositive NMO. Summary The clinical, pathological and therapeutic concepts of NMOSD have evolved and broadened over the last two decades following the detection of AQP4 antibodies and MOG antibodies in the patients. Double seronegative NMOSD is a current research focus, but now we may need to reconsider how NMOSD should be defined.
Transcriptomic-Proteomic Correlation in the Predation-Evoked Venom of the Cone Snail, Conus imperialis

Individual variation in animal venom has been linked to geographical location, feeding habit, season, size, and gender. Uniquely, cone snails possess the remarkable ability to change venom composition in response to predatory or defensive stimuli. To date, correlations between the venom gland transcriptome and proteome within and between individual cone snails have not been reported. In this study, we use 454 pyrosequencing and mass spectrometry to decipher the transcriptomes and proteomes of the venom gland and corresponding predation-evoked venom of two specimens of Conus imperialis. Transcriptomic analyses revealed 17 conotoxin gene superfamilies common to both animals, including 5 novel superfamilies and two novel cysteine frameworks. While highly expressed transcripts were common to both specimens, variation of moderately and weakly expressed precursor sequences was surprisingly diverse, with one specimen expressing two unique gene superfamilies and consistently producing more paralogs within each conotoxin gene superfamily. Using a quantitative labelling method, conotoxin variability was compared quantitatively, with highly expressed peptides showing a strong correlation between transcription and translation, whereas peptides expressed at lower levels showed a poor correlation. These results suggest that major transcripts are subject to stabilizing selection, while minor transcripts are subject to diversifying selection.
Intention and Oral Health Behavior Perspective of Islamic Traditional Boarding School Students Based on Theory of Planned Behavior

Objective: To analyze the correlation of the students in an Islamic boarding school intention toward oral health behavior by means of the Theory of Planned Behavior (TPB) approach. Material and Methods: A cross-sectional analytic study was conducted on 153 students of an Islamic boarding school who fulfilled the criterion. Data were obtained by a questionnaire and clinical examination . Data were presented as mean and standard deviation. Results: The highest score of the variable that affects behavior recorded from both male and female respondents was Subjective Norm (57.288 ± 12.828), followed by Attitude (25.627 ± 4.144). Meanwhile, the lowest score that affects behavior was Oral Health Knowledge (3.179 ± 1.402). All study variables, according to the theory of planned behavior, such as knowledge, attitude, subjective norm, perceived behavior control, and intention had significant value to predict and assess behavior with p<0.05 . Conclusion: Attitude, subjective norms, perceived behavioral control, and oral health knowledge in Private Boarding School’s Santris influence the intention to improve oral hygiene behavior.
Effectiveness of screening for atrial fibrillation and its determinants. A meta-analysis

Background Many atrial fibrillation patients eligible for oral anticoagulants are unaware of the presence of AF, and improved detection is necessary to facilitate thromboprophylaxis against stroke. Objective To assess the effectiveness of screening for AF compared to no screening and to compare efficacy outcomes of different screening strategies. Materials and methods Cochrane Central Register of Controlled Trials, EMBASE and MEDLINE from Jan 1, 2000 –Dec 31, 2015 were searched. Studies employing systematic or opportunistic screening and using ECG or pulse palpation in populations age ≥40 years were included. Data describing study and patient characteristics and number of patients with new AF were extracted. The outcome was the incidence of previously undiagnosed AF. Results We identified 25 unique (3 RCTs and 22 observational) studies (n = 88 786) from 14 countries. The incidence of newly detected AF due to screening was 1.5% (95% CI 1.1 to 1.8%). Systematic screening was more effective than opportunistic: 1.8% (95% CI 1.4 to 2.3%) vs. 1.1% (95% CI 0.6 to 1.6%), p<0.05, GP-led screening than community based: 1.9% (95% CI 1.4 to 2.4%) vs. 1.1% (95% CI 0.7 to 1.6%), p<0.05, and repeated heart rhythm measurements than isolated assessments of rhythm: 2.1% (95% CI 1.5–2.8) vs. 1.2% (95% CI 0.8–1.6), p<0.05. Only heart rhythm measurement frequency had statistical significance in a multivariate meta-regression model (p<0.05). Conclusions Active screening for AF, whether systematic or opportunistic, is effective beginning from 40 years of age. The organisation of screening process may be more important than technical solutions used for heart rhythm assessment.