Miracle-dz/UniFAR-FTUs huggingface dataset:
Percutaneous ultrasound-guided renal biopsy in supine anterolateral position : A new approach for obese and non-obese patients

Background. Percutaneous ultrasound (US)-guided renal biopsy is the gold standard in the evaluation of renal diseases, but some patients, such as the obese, may not be eligible for this procedure. Aim of this study was to determine the feasibility, efficacy and safety of US-guided percutaneous renal biopsy in supine antero-lateral position (SALP) in high-risk patients (BMI > 30 and/or respiratory difficulty), as well as to compare the overall outcome of SALP with that of traditional prone position (PP) in lowrisk patients (BMI ≤ 30/no respiratory difficulty). Methods. One hundred and ten consecutive patients scheduled for native kidney biopsy were recruited. Ninety lowrisk patients were randomized following a permuted block randomization list to receive either US-guided renal biopsy in PP (Group 1) or SALP (Group 2), whereas 20 high-risk patients received US-guided renal biopsy in SALP (Group 3) and were our observational cohort study. Comfort compliance and breathing difficulty in each group were evaluated by the Visual Analogue Scale (VAS). Bleeding complications were evaluated through US renal scanning. Results. Mean operating time was 7 min. Comfort compliance and breathing difficulty were significantly better for SALP in both lowand high-risk patients; there were no significant differences in pain after biopsy among the three groups. Bleeding complications were slightly higher in Group 1. Diagnostic yield was similar in all groups. Conclusions. SALP is reliable, minimally invasive, easy, highly successful, timesaving and almost free from severe side-effects. A better VAS score for breathing difficulty and comfort compliance characterizes this procedure, making it particularly suitable for obese patients.
COUPLING CORRECTION FOR THE ILC DAMPING RINGS

The damping rings of the International Linear Collider (ILC) are specified to operate with a vertical emittance of 2 pm. To achieve this challenging goal, an effective diagnostics and correction system will be needed; however, BPMs add impedance to the ring, and diagnostics and correctors add complexity and cost. It is therefore desirable to understand how the final achievable vertical emittance depends on the numbers, locations and performance of the BPMs and correctors, and to determine the minimum number of these components required. We present the results of simulations for the damping rings, aimed at indicating the effectiveness of coupling correction for different design scenarios of the diagnostics and correction systems.
The Benefits of Organizational Citizenship Behavior for Job Performance and the Moderating Role of Human Capital

This study aims to investigate the relationship between organizational citizenship behavior directed towardindividuals (OCBI) and the organization (OCBO), and job performance. In addition, the moderating role ofexperiential/intelligential human capital on the above relationship was also examined. Data was collected from585 RD in other words, OCB would be of greater benefit toless experienced employees than to experienced ones. Finally, the current study also found that employeesengaging in OCBO would have even better job performance if they also had greater intelligential human capital.
Lubricated viscous gravity currents

Abstract We present a theoretical and experimental study of viscous gravity currents lubricated by another viscous fluid from below. We use lubrication theory to model both layers as Newtonian fluids spreading under their own weight in two-dimensional and axisymmetric settings over a smooth rigid horizontal surface and consider the limit in which vertical shear provides the dominant resistance to the flow in both layers. There are contributions from Poiseuille-like flow driven by buoyancy and Couette-like flow driven by viscous coupling between the layers. The flow is self-similar if both fluids are released simultaneously, and exhibits initial transient behaviour when there is a delay between the initiation of flow in the two layers. We solve for both situations and show that the latter converges towards self-similarity at late times. The flow depends on three key dimensionless parameters relating the relative dynamic viscosities, input fluxes and density differences between the two layers. Provided the density difference between the two layers is bounded away from zero, we find an asymptotic solution in which the front of the lubricant is driven by its own gravitational spreading. There is a singular limit of equal densities in which the lubricant no longer spreads under its own weight in the vicinity of its nose and ends abruptly with a non-zero thickness there. We explore various regimes, from thin lubricating layers underneath a more viscous current to thin surface films coating an underlying more viscous current and find that although a thin film does not greatly influence the more viscous current if it forms a surface coating, it begins to cause interesting dynamics if it lubricates the more viscous current from below. We find experimentally that a lubricated gravity current is prone to a fingering instability.
Health Services As Credence Goods: A Field Experiment

Agency problems are a defining characteristic of healthcare markets. We present the results from a field experiment in the market for dental care: a test patient who does not need treatment is sent to 180 dentists to receive treatment recommendations. In the experiment, we vary the socio-economic status of the patient and whether a second opinion signal is sent. Furthermore, measures of market, practice and dentist characteristics are collected. We observe an overtreatment recommendation rate of 28% and a striking heterogeneity in treatment recommendations. Furthermore, we find significantly fewer overtreatment recommendations for patients with higher socio-economic status compared with lower socio-economic status for standard visits, suggesting a complex role for patients’ socio-economic status. Competition intensity, measured by dentist density, does not have a significant influence on overtreatment. Dentists with shorter waiting times are more likely to propose unnecessary treatment.
Echo Chambers in Parliamentary Twitter Networks: The Catalan Case

Social media is transforming relations among members of parliaments, but are members taking advantage of these new media to broaden their party and ideological communication environment, or they are mainly communicating with other party members and ideologically aligned peers? This article tests whether parliamentarians’ use of Twitter is opening communication flows or confining them to representatives of the same party or ideology. The study is based on a data set spanning the period January 1, 2013, to March 31, 2014, which covers all relations (4,516), retweets (6,045), and mentions (19,507) among Catalan parliamentarians. Our results indicate that communication flows are polarized along party and ideological lines. The degree of polarization of this network depends, however, on where the interactions occur: The relations network is the most polarized; cross-party and cross-ideological interactions are greater in the retweet network and most present in the mention network.
The ultraviolet upturn in brightest cluster galaxies

This paper is part of a series devoted to the investigation of a large sample of brightest cluster galaxies (BCGs), their properties and the relationships between these properties and the properties of the host clusters. In this paper, we compare the stellar population properties derived from high signal-to-noise ratio, optical long-slit spectra with the Galaxy Evolution Explorer (GALEX) ultraviolet (UV) colour measurements for 36 nearby BCGs to understand the diversity in the most rapidly evolving feature in old stellar systems, the UV upturn. We investigate (1) the possible differences between the UV upturn of BCGs and that of a control sample of ordinary ellipticals in the same mass range, as well as possible correlations between the UV upturn and other general properties of the galaxies; (2) the possible correlations between the UV upturn and the properties of the host clusters and (3) the recently proposed scenarios where helium sedimentation in the cluster centre can produce an enhanced UV upturn. We find systematic differences between the UV colours of BCGs and ordinary ellipticals, but we do not find correlations between these colours and the properties of the host clusters. Furthermore, the observations do not support the predictions made by the helium-sedimentation model as an enhancer of the UV upturn.
Instanton counting in class Sk

We compute the instanton partition functions of SCFTs in class . We obtain this result via orbifolding Dp/D(p-4) brane systems and calculating the partition function of the supersymmetric gauge theory on the worldvolume of K D(p-4) branes. Starting with D5/D1 setups probing a orbifold singularity we obtain the K instanton partition functions of 6d theories on in the presence of orbifold defects on T2 via computing the 2d superconformal index of the worldvolume theory on K D1 branes wrapping the T2. We then reduce our results to the 5d and to the 4d instanton partition functions. For k = 1 we check that we reproduce the known elliptic, trigonometric and rational Nekrasov partition functions. Finally, we show that the instanton partition functions of quivers in class can be obtained from the class mother theory partition functions with gauge factors via imposing the ‘orbifold condition’ with and , on the Coulomb moduli and the mass parameters.
Final-state effect on x-ray photoelectron spectrum of nominally $d^1$ and $n$-doped $d^0$ transition metal oxides

We investigate the x-ray photoelectron spectroscopy (XPS) of nominally $d^1$ and $n$-doped $d^0$ transition metal oxides including NbO$_2$, SrVO$_3$, and LaTiO$_3$ (nominally $d^1$), as well as $n$-doped SrTiO$_3$ (nominally $d^0$). In the case of single phase $d^1$ oxides, we find that the XPS spectra (specifically photoelectrons from Nb $3d$, V $2p$, Ti $2p$ core levels) all display at least two, and sometimes three distinct components, which can be consistently identified as $d^0$, $d^1$, and $d^2$ oxidation states (with decreasing order in binding energy). Electron doping increases the $d^2$ component but decreases the $d^0$ component, whereas hole doping reverses this trend; a single $d^1$ peak is never observed, and the $d^0$ peak is always present even in phase-pure samples. In the case of $n$-doped SrTiO$_3$, the $d^1$ component appears as a weak shoulder with respect to the main $d^0$ peak. We argue that these multiple peaks should be understood as being due to the final-state effect and are intrinsic to the materials. Their presence does not necessarily imply the existence of spatially localized ions of different oxidation states nor of separate phases. A simple model is provided to illustrate this interpretation, and several experiments are discussed accordingly. The key parameter to determine the relative importance between the initial-state and final-state effects is also pointed out.
King, Ruth and Bird, Sheila M and Overstall, Antony M. and Hay, Gordon and Hutchinson, Sharon (2014) Estimating prevalence of injecting drug users and associated heroin-related death rates in England by using regional data and incorporating prior

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A note on infinite groups whose subgroups are close to be normal-by-finite

A group G is said to have the CF-property if the index |X:XG| is finite for every subgroup X of G. Extending previous results by Buckley, Lennox, Neumann, Smith, and Wiegold, it is proven here that if G is a locally graded group whose proper subgroups have the CF-property, then G is abelian-by-finite, provided that all its periodic sections are locally finite. Groups in which all proper subgroups of infinite rank have the CF-property are also studied.
Distribution and Year-class Strength of Juvenile Redfish,Sebastessp., on Flemish Cap in the Winters of 1978-82

Distribution and abundance of juvenile redfish, Sebastes sp. , on Flemish Cap in the winters of 1978-82 were estimated from catches during research bottom-trawl surveys and from numbers of redfish in stomachs of cod caught during these surveys. Two modal groups in the redfish length frequencies (7-8 cm and 11-12 cm) were assumed to represent 1and 2-year-old fish respectively, but ageing remains uncertain. Both size-groups were found primarily in depths of 200-300 m, with major concentrations on the southern slope of the bank. The 1978 year-class, which appeared to be abundant in cod stomachs and moderately abundant in trawl catches in 1979, was not abundant in subsequent years, indicating that mortality of juvenile redfish can be high. The 1980 and 1981 year-classes, which appear to be stronger than the 1978 year-class on Flemish Cap, have been noted to be strong in other parts of the Northwest Atlantic, particularly on St. Pierre Bank, on the Scotian Shelf, and in the Gulf of St. Lawrence.
Optimal regulation under unknown supply of distributed generation

As distributed generation (DG) continues to expand, larger low-voltage networks will be required in the future. However, regulated distribution network operators (DNOs) need to invest in new infrastructure without knowing a relevant determinant of network costs, the future amount of DG. Due to uncertainty, optimal network capacity needs to reflect the expected demand for capacity over all possible DG states. Therefore, not all capacity will be used if a low level of DG occurs. Optimal regulation that is set under asymmetric information about future DG needs to create incentives for the DNO to invest in this 'excess capacity' and also encourage optimal network utilization. In this case, an option menu that includes fixed fees and positive network charges on DG-producers fulfills these requirements and implements the first-best optimum. On the contrary, price-cap and revenue-cap regulation lead to either underinvestment or high information rents to the DNO.
Physical properties of dense molecular gas in centres of Seyfert galaxies

We present new ∼1 arcsec resolution data of the dense molecular gas in the central 50–100 pc of four nearby Seyfert galaxies. Plateau de Bure Interferometer (PdBI) observations of HCN and, in two of the four sources, simultaneously HCO + allow us to carefully constrain the dynamical state of the dense gas surrounding the active galactic nuclei (AGN). The analysis of the kinematics shows large line widths of 100–200 km s −1 full width at half-maximum (FWHM) that can only partially arise from beam smearing of the velocity gradient. The observed morphological and kinematic parameters (dimensions, major axis position angle, red and blue channel separation, and integrated line width) are well reproduced by a thick disc, where the emitting dense gas has a large intrinsic dispersion (20–40 km s −1 ), implying that it exists at significant scale heights (25–30 per cent of the disc radius). To put the observed kinematics in the context of the starburst and AGN evolution, we estimate the Toomre Q parameter. We find this is always greater than the critical value, i.e. Q is above the limit such that the gas is stable against rapid star formation. This is supported by the lack of direct evidence, in these four Seyfert galaxies, for on-going star formation close around the AGN. Instead, any current star formation tends to be located in a circumnuclear ring. We conclude that the physical conditions are indeed not suited to star formation within the central ∼100 pc.
A comparison of the nutrient intake of a community-dwelling first episode psychosis cohort , aged 1964 , with data from the United Kingdom population

Psychosis increases the risk of CVD, obesity and type 2 diabetes and reduces life expectancy. There are limited data comparing the dietary habits of community-dwelling first-episode psychosis sufferers – with autonomy over diet – and the general population. The data represent the retrospective evaluation of nutritional data collected between 2007 and 2013 from 143 individuals from the UK population receiving treatment for first-episode psychosis. Differences in mean nutrient intakes between the study cohort and the national sample were tested for statistical significance using independent t tests, incorporating Satterthwaite’s correction where required. Mean total energy intake was lower for males (P= 0·049) and higher for females (P = 0·016) in the cohort than in the corresponding subgroups of the national sample. Females in the study cohort consumed 12·9 (95 % CI 4·3, 21·5) g more total fat per d, whilst males consumed 7·7 (95 % CI 0·5, 14·9) g less protein per d than the national sample. Males in the study also showed significantly lower mean intakes than nationally of folate, Fe, Se, vitamin D and Zn, but not vitamin C. The proportion of individuals not meeting the lower reference nutrient intakes, particularly for Se (males 54·0 % and females 57·1 %) and for Fe amongst females (29·6 %), is cause for concern regarding potentially severe deficiencies. Further exploration of dietary habits within first-episode psychosis is warranted to assess whether individuals make beneficial dietary changes for their physical and mental health and wellbeing following dietary change intervention. It would also be pertinent to assess any correlation between diet and mental health
Turkish High School Teachers' Conceptions of Creativity in Mathematics.

The aim of this research is to explore Turkish high school teachers’ conceptions of creativity in mathematics. The research was carried out using qualitative research methods. The sample consisted of seven mathematics teachers, and semi-structured interviews were used as a data collection tool. Analysis of the responses indicated that mathematics teachers’ conceptions of creativity were limited to developing a different perspective and finding a solution using this different perspective. Creative mathematics teachers were described as having some professional abilities rather than personality traits by the teachers. Standardized tests, curriculum limitations, and the education system were given as some of the barriers to fostering creativity. The study shows that Turkish high school mathematics teachers’ conceptions of creativity were narrow and the factors inhibiting creativity were attributed to characteristics of the education system rather than those of the teachers themselves.
The Effect of Internet Searches on Afforestation: The Case of a Green Search Engine

Ecosia is an Internet search engine that plants trees with the income obtained from advertising. This study explored the factors that affect the adoption of Ecosia.org from the perspective of technology adoption and trust. This was done by using the Unified Theory of Acceptance and Use of Technology (UTAUT2) and then analyzing the results with PLS-SEM (Partial Least Squares-Structural Equation Modeling). Subsequently, a survey was conducted with a structured questionnaire on search engines, which yielded the following results: (1) the idea of a company helping to mitigate the effects of climate change by planting trees is well received by Internet users. However, few people accept the idea of changing their habits from using traditional search engines; (2) Ecosia is a search engine believed to have higher compatibility rates, and needing less hardware resources, and (3) ecological marketing is an appropriate and future strategy that can increase the intention to use a technological product. Based on the results obtained, this study shows that a search engine or other service provided by the Internet, which can be audited (visits, searches, files, etc.), can also contribute to curb the effects of deforestation and climate change. In addition, companies, and especially technological start-ups, are advised to take into account that users feel better using these tools. Finally, this study urges foundations and non-governmental organizations to fight against the effects of deforestation by supporting these initiatives. The study also urges companies to support technological services, and follow the behavior of Ecosia.org in order to positively influence user satisfaction by using ecological marketing strategies.
USABILITY ISSUES FOR LEARNING MANAGEMENT SYSTEMS: CASE STUDY, STUDENTS AND TEACHING STAFF PERCEPTIONS

This study contributes to examining AlBalqa Applied University (BAU) teaching staff’s and students’ views on integrating features of smart learning and social network services into the Learning Management System (LMS) currently used (Moodle). The need of this study arose from the realization that the teaching staff and students’ are moving from LMSs to Social Network Sites (SNSs) to achieve academic-related tasks. The aim of this research is to analyse the patterns the teaching staff’s and students’ usage of LMSs and SNSs, to identify the gaps in the currently used LMS, and to investigate the users’ perceptions towards educational value of integrating social networking features into Moodle. Data was collected from students and teaching staff by using mixed method approach: interviews and survey. Obtained information regarding the teaching staff’s and students’ perceptions toward the used LMS and the SNSs demonstrates the shortfalls of Moodle and determines the SNSs features that have the potential to enhance the usage of the LMS. The results of the study show that although the majority of the teaching staff spend extra time to accomplish an educational task through SNSs, they prefer to use SNSs for announcements and communication, as they believe that SNSs notifies faster than using Moodle. The results were similar for the students, while they trust the Moodle as an academic source, the majority believe that they can access relevant academic content more rapidly when using SNSs. The results emphasize the importance of the development of the features of the LMSs as a unified source for educational process including academic information and collaborative activities.