Miracle-dz/UniFAR-FTUs huggingface dataset:
Back to Parents : Earnings of Sandwich Generation and Informal Care

Earnings of internal migrants and return migrants to parents’ residential area are analysed in the paper. It is hypothesised that an individual maximizes her utility by the choice of residence, working hours, amount of care giving to parents, and receiving support from parents, in particular, grandparenting. Care giving is associated with decrease in working hours, whereas grandparenting increases labour supply of young adults. Returns to skills in the compared groups can vary because of the residential choice, heterogeneity of the groups, and different involvement in informal care. The main results suggest that earnings of male return migrants are higher, whereas they are lower for female return migrants. However, returns to human capital are remarkably lower for return migrants. The gap in returns to human capital diminishes when taken into account potential time transfer within a family. Return migrants likely benefit from grandparenting. Earnings decrease is found in response to events that are associated with care to parents for both migrants and return migrants. The study is conducted on individual pooled data on young people born in 1974 for the period 1992-2006, Sweden.
Phase transition behavior of hydrogen bonded liquid crystal ( 6 BA ) 2-( BPy ) x as studied by 2 H NMR

The thermal properties and the orientational order of hydrogen-bonded liquid crystals (6BA)2-(BPy)0.4 and (6BA)2-(BPy)0.3 (6BA: 4-n-hexylbenzoicacid, BPy: 4,4’bipyridine) were investigated by DSC and 2H NMR. On cooling, isotropic liquid liquid crystal phase transition temperatures were TC = 409 and 405 K for (6BA)2-(BPy)0.4 and (6BA)2-(BPy)0.3, respectively. Thermal anomalies in the liquid crystal phase were observed at TLC1 = 402 and TLC2 = 375 K for (6BA)2-(BPy)0.4 and at TLC1 = 398 and TLC2 = 375 K for (6BA)2-(BPy)0.3. For (6BA)2-(BPy)0.4, only the smectic component was created above TLC1. In addition, the nematic component was created below TLC1. The nematic component gradually changed to the smectic component with decreasing temperature and only the smectic component was observed belowTLC2. For (6BA)2-(BPy)0.3, only the nematic component was created above TLC2. The phase transition from the nematic phase to the smectic phase took place at aroundTLC2.
A Discourse Signal Annotation System for RST Trees

This paper presents a new system for open-ended discourse relation signal annotation in the framework of Rhetorical Structure Theory (RST), implemented on top of an online tool for RST annotation. We discuss existing projects annotating textual signals of discourse relations, which have so far not allowed simultaneously structuring and annotating words signaling hierarchical discourse trees, and demonstrate the design and applications of our interface by extending existing RST annotations in the freely available GUM corpus.
Large Eddy Simulation of a lean premixed methane-air flame

With the future standards on pollutant emissions imposed by ICAO-CAEP (ICAO, 2010), that force to a drastic reduction of current NOx levels, lean combustion, successfully applied in heavy duty gas turbine from 20 years, will be soon adopted in aero-engines as well. However, such redesign process needs to deal with the onset of large pressure fluctuations and aeroacoustics phenomena that should be solved in order to safely implement this burning mode. In this framework, standard design tools are often not sufficient to properly characterize such devices. Thus, scale resolved and unsteady approaches are required to properly understand the combustor performances and in last years Large Eddy Simulation (LES) has undergone considerable developments. This approach has been widely applied for the numerical simulation of gaseous flames (Gicquel et al., 2012) and proper combustion models have been developed for the description of the flame structure and for the characterization of turbulencechemistry interactions. In premixed regimes the flame thickness is too small to resolve it properly on a typically LES grid In respect to non-premixed combustion (Poinsot and Veynante, 2010). Different approaches have been developed to overcome this shortcoming. One possibility is tracking the flame front through a level-set method. This approach was originally introduced for Reynolds-averaged Navier– Stokes (RANS) simulations and has been adapted for LES in last years (Pitsch, 2005). Another resolution strategy is based on the tabulation of a pre-calculated detailed chemistry solution and on its integration through a presumed filtered density function (normally a beta-fdf). These methods, such as Flamelet Generated Manifold (FGM) or ILDM (Intrinsic Low Dimensional Manifold) have been widely applied both in RANS and in LES context (Gicquel et al., 2000; Oijen and Goey, 2000; van Oijen et al., 2007) for the simulation of premixed and partially premixed flames. A further group of methods relies on computing the flame structure on the LES grid and in order to perform computations on meshes available at industrial level the flame needs to be spatially thickened in flame front normal direction. This can be realized modifying the source term in chemical species transport equations through an approach normally referred to as Artificially Thickened Flame (ATF) (Charlette et al., 2002; Colin et al., 2000; Proch and Kempf, 2014). In this work LES simulations of a lean premixed air-methane flame realized through the ATF approach in OpenFOAM are reported. Results are compared both with the available experimental data and with a set of RANS and LES FGM simulations realized through the commercial code ANSYS Fluent 15.0. A detailed comparison of the obtained results is performed in order to highlight the impact of the main parameters of the ATF model both in terms of chemistry and turbulence-chemistry modelling.
Two-pass real-time direct isosurface rendering algorithm optimization for HTC Vive and low performance devices

Real-time visualization of 3D medical data on low-performance mobile and virtual reality (VR, e.g. HTC Vive) devices is non-trivial because it is necessary to render image twice per frame for each of the eyes. The algorithm presented in this paper describes an approach that allows visualizing 3D medical data in real-time without loss of quality as well as demanding less computational resources. The proposed method is a two-pass rendering algorithm, whereby the approximate texture is rendered at the first step and optimized detailed ray casting applied to the whole scene at the second step. Since the algorithm requires no preprocessing and both passes are performed on each visualization frame, the algorithm allows to dynamically change the level of rendered isosurfaces; this is one of the chief advantages of the proposed approach. The versatility of the solution allowed its implementation for medical data visualization on various platforms, i.e. HTC Vive, Web Browsers, Android devices, and iOS devices.
Aalborg Universitet Psychosocial benefits of workplace physical exercise cluster randomized controlled trial

Background: While benefits of workplace physical exercise on physical health is well known, little is known about the psychosocial effects of such initiatives. This study evaluates the effect of workplace versus home-based physical exercise on psychosocial factors among healthcare workers. Methods: A total of 200 female healthcare workers (Age: 42.0, BMI: 24.1) from 18 departments at three hospitals were cluster-randomized to 10 weeks of: 1) home-based physical exercise (HOME) performed alone during leisure time for 10 min 5 days per week or 2) workplace physical exercise (WORK) performed in groups during working hours for 10 min 5 days per week and up to 5 group-based coaching sessions on motivation for regular physical exercise. Vitality and mental health (SF-36, scale 0–100), psychosocial work environment (COPSOQ, scale 0–100), workand leisure disability (DASH, 0–100), control(Bournemouth, scale 0–10) and concern about pain (Pain Catastrophizing Scale, scale 0–10) were assessed at baseline and at 10-week follow-up. Results: Vitality as well as control and concern about pain improved more following WORK than HOME (all p < 0.05) in spite of increased work pace (p < 0.05). Workand leisure disability, emotional demands, influence at work, sense of community, social support and mental health remained unchanged. Between-group differences at follow-up (WORK vs. HOME) were 7 [95% confidence interval (95% CI) 3 to 10] for vitality, −0.8 [95% CI -1.3 to −0.3] for control of pain and −0.9 [95% CI -1.4 to −0.5] for concern about pain, respectively. Conclusions: Performing physical exercise together with colleagues during working hours was more effective than home-based exercise in improving vitality and concern and control of pain among healthcare workers. These benefits occurred in spite of increased work pace. Trial registration: NCT01921764 at ClinicalTrials.gov. Registered 10 August 2013.
Meanings and Experiences of Being Transgender: A Qualitative Study among Transgender Youth

Our aim in this qualitative study was to explore the meaning and experiences of transgender youth in their everyday interactions. Participants included 24 transgender youth from Yazd and Isfahan Cities (Iran). We selected participants through purposeful sampling method. Research data were collected through semi-structured interviews. The interview transcripts were analyzed using theoretical coding techniques. The results showed that transgender people like to present their favorite identity in behaviors, wearing and social appearances, their social and domestic acceptance is deferred as the society defines transgender as a taboo and ostracizes persons. They felt themselves in a converse body and under pressure for coexistence by peers and neighbors. They attempt to save their desired identity through daydreaming and performing identity role in solitude.
FACTORS AFFECTING INSTRUCTORS’ ADOPTION OF LEARNING MANAGEMENT SYSTEMS: THE CASE OF PALESTINE

Although web-based learning systems are emerging as a useful tool for facilitating teaching and learning activities, instructors’ use of learning management systems in higher educational institutions is still limited. In this context, this empirical research investigates factors that can potentially contribute to learning management system adoption in Palestinian institutions of higher education. In addition, the study also developed an integrated model of instructor adoption of learning management systems by incorporating existing literature and multiple empirically verified theories, including the technology acceptance model and DeLone and McLean’s information system success model. Survey data collected from 365 university instructors were examined to evaluate the influence of various constructs on lecturers’ adoption of learning management systems using structural equation modeling. The research results show that perceived usefulness, perceived ease of use, system quality, information quality, service quality, management support, resistant to change, personnel IT innovativeness, attitude toward the system, computer efficacy and subjective norms influence instructors’ intention to use learning management systems. Findings of this research will be valuable for academicians and practitioners in implementation, management and continuous improvement of learning management systems.
Nafion as a nanoproton conductor in microbial fuel cells ∗

Nafion, a sulfonated tetrafluoroethylene copolymer, consists of a hydrophobic fluorocarbon backbone (–CF2–CF2–) to which hydrophilic sulfonate groups (SO− 3 ) are attached. The presence of negatively charged sulfonate groups in a nanomembrane brings about a high level of proton conductivity. In this study, Saccharomyces cerevisiae was used for production of bioelectricity in a 2-chambered microbial fuel cell (MFC). We selected 9cm Nafion 117 and Nafion 112 as nanomembranes to transport the produced proton from the anode chamber to the cathode compartment at ambient temperature and pressure. Initial glucose concentration was 30 g/L. The maximum obtained voltage, current, and power density for Nafion 117 were 668 mV, 60.28 mA/m , and 9.95 mW/m , respectively. For Nafion 112, those results were 670 mV, 150.6 mA/m , and 31.32 mW/m , respectively.
Ka-Band Feed Arrays for Spacecraft Reflector Antennas With Limited Scan Capability-An Overview

JPL and NASA are in the process of developing ground and spacecraft antenna systems at Ka-band frequencies for future deep space applications. The use of Kaband (32-GHz down) communication will result in smaller ground and spacecraft antennas and associated equipment, and will provide larger bandwidths necessary for very high data rate communication and radio navigation. In this article, the use of a small phased array as a feed for a reflector antenna system with limited scan capability is addressed. Different feed and antenna configurations, as well as array architectures, are examined. Some theoretical and experimental parameters of a particular breadboard feed array developed by JPL and the University of Massachusetts are presented. Guidelines for the future direction of this effort are provided.
12143 Home Advantage in European International Soccer : Which Dimension of Distance Matters ? FEBRUARY 2019

IZA DP No. 12143 FEBRUARY 2019 Home Advantage in European International Soccer: Which Dimension of Distance Matters? We investigate whether the home advantage in soccer differs by various dimensions of distance between the (regions of the) home and away teams: geographical distance, climatic differences, cultural distance, and disparities in economic prosperity. To this end, we analyse 2,012 recent matches played in the UEFA Champions League and UEFA Europa League. We find that when the home team plays at a higher altitude, they benefit substantially more from their home advantage. Every 100 meters of altitude difference is associated with an increase in expected probability to win the match, as the home team, by 1.1 percentage points. JEL Classification: L83, J44, Z00
Title Patterns of repeated anal cytology results among HIV-positive and HIV-negative men who have sex with men

Background: Men who have sex with men (MSM) are at increased risk for anal cancer. In cervical cancer screening, patterns of repeated cytology results are used to identify lowand high-risk women, but little is known about these patterns for anal cytology among MSM. Methods: We analyzed Multicenter AIDS Cohort Study (MACS) data for MSM who were offered anal cytology testing annually (HIV-positive) or every 2 years (HIV-negative) for 4 years. Results: Following an initial negative (normal) cytology, the frequency of a second negative cytology was lower among HIV-positive MSM with CD4≥ 500 (74%) or CD4 < 500 (68%) than HIV-negative MSM (83%) (p < 0.001). After an initial abnormal cytology, the frequency of a second abnormal cytology was highest among HIV-positive MSM with CD4 < 500 (70%) compared to CD4≥ 500 (53%) or HIV-negative MSM (46%) (p=0.003). Among HIV-positive MSM with at least three results, 37% had 3 consecutive negative results; 3 consecutive abnormal results were more frequent among CD4 < 500 (22%) than CD4≥ 500 (10%) (p=0.008). Conclusions: More than one-third of HIV-positive MSM have consistently negative anal cytology over three years. Following abnormal anal cytology, a repeated cytology is commonly negative in HIV-negative or immunocompetent HIV-positive men, while persistent cytological abnormality is more likely among HIV-positive men with CD4 < 500.
PARTICLE-BASED MODELLING AND COMPUTATIONAL HOMOGENISATION OF GRANULAR MEDIA

Abstract. The motion of individual grains, e. g. in porous geomaterials, plays a significant role for the macroscopic material behaviour and thus justifies the need for modelling approaches, which incorporate a micro-macro transition. An example for micromotionbased material failure is the development of shear zones, as examparily observed in biaxial compression tests, cf. [5]. In this contribution, localisation phenomena are investigated in dry granular media on different size scales. This is done in three basic steps: a particlebased modelling is set up on the microscale, followed by the homogenisation of the obtained information towards continuum quantities, introducing Representative Elementary Volumes (REV) on the mesoscale. Finally, a comparison with a micropolar continuum approach, formulated on the macroscale, is carried out.
USE OF CONTRAST MAMMOGRAPHY IN THE DIAGNOSIS OF BREAST CANCER . OUR EXPERIENCE AND LITERATURE

Mammography as a screening method has been shown to reduce mortality by early detection of breast cancer; however, in very dense breasts it is difficult to detect, so new methods of screening and diagnosis have been devised. Contrast enhanced spectral contrast mammography (CESM) is one of these methods that, with the use of contrast medium, facilitates the detection of suspicious lesions. We will briefly discuss the CESM technique and history, review its comparison with conventional mammography, and with a series of cases we will discuss its indications, advantages and disadvantages.
Effects of Light Color on Growth Performance, HistomorphometricFeatures of Small Intestine and Some Blood Parameters in ChukarPartridges (Alectoris chukar)

The study was conducted in order to compare the effects of light-emitting diode (LED) light with a different color on performance parameters, histomorphometric features of the small intestine and some blood parameters in growing partridges. For this purpose, a total of 450 Chukar partridges (Alectoris chukar) were perdivided into three experimental groups including green light (GL), daylight (DL) and blue light (BL), and 250-lumen lighting. Each group contained 150 partridges with 5 repetitions per group. Experimental groups balanced according to initial live weight and raised under the same feeding and environmental conditions within the scope of the needs of partridges during 35 days. GL group showed higher live weight (P<0.05), live weight gain (P<0.01) and feed intake (P<0.05). Feed conversion and viability rates were similar among the groups (P>0.05). Higher villus height (VH), villus width, villus surface area were obtained in GL group, followed by DL and BL (P<0.001). The differences in crypt depth (CD) and VH/CD were not significant (P>0.05). Serum glucose (P<0.01) and lactate dehydrogenase levels (LDH) (P<0.05) were increased in GL groups. Serum high-density lipoprotein level (HDL) was found to be higher in DL group (P<0.01). Consequently, GL group had better results in growing partridges. GL could be utilized under intensive farming conditions for partridges.
Combined Beamforming and Noise Cancellation Jacek Dmochowski

This paper examines microphone-array-based, combined beamformer-noise canceller structures. The performance of the structures is evaluated using computer simulation as well as experimental measurements. The inter-operation of the beamformer and noise canceller is studied by measuring the SNR improvements offered by the respective components. An experimental procedure for evaluating output SNR is presented: the desired signal is captured from a set location in the recording environment. The noise signal is measured from a second (generally different) location. Results reveal an SNR improvement of up to 17 dB, and are compared to those stemming from conventional approaches.
A SUMMARY OF COALBED METHANE POTENTIAL IN BRITISH COLUMBIA

For the first part of 2003 wholesale natural gas prices have been in the range of 4 to 6 $US per million btu this compares to prices of about 2.2 $US in 1998. The price increase reflects increased demand and a decrease in reserves within USA and Canada. In fact production probably peaked in the Western Canadian Sedimentary basin that extends from Alberta into northeastern British Columbia at about 6.3 Tcf/yr in 2001. It is now at about 6 Tcf/yr.and of this total about 2 Tcf is exported to the USA. These production totals include the production of 1.3 Tcf/yr (2003) from the British Columbia part of the basin.
CHOICES IN INTEREST RATE RISK MANAGEMENT PROCESS

The purpose of this paper is to highlight the presence of interest rate risk at the level of non financial companies, risk which, although incidental, affects the decision process in its core; and to offer modern management solutions, in order to support the managers that underlie the investment financing decisions at the level of these companies. Methodologically, the research has been done mainly as a quantitative intercession, with estimates and tests of inductive type and appeal to adequate techniques of analysis and reading off. The results of research reveal the placing of estimation and interest rate risk management in the decision making problems of non financial company; the setting-up of interest rate risk management into a suitable algorithm developed on logical steps; the structured analysis of the derivatives for the interest rate risk management; the growth of applied component, as an actual way to estimate and test the acquired results. As a result of the research, we can draw the conclusion that the efficient management of the interest rate risk depends on the moment in which the tools we use interfere with the risk management decisions and on the way in which the management strategies answer to each manager’s own decisions.
Implicit Level Set Methods for a Fire Spread Model

The level set method is a computational technique for tracking a moving interface over time. It can naturally handle topological changes such as merging or breaking interface. Intrinsic geometric properties of the interface, such as curvature and normal direction, are easily determined from the level set function. There are many applications of the level set method, including kinetic crystal growth, epitaxial growth of thin films, image restoration, vortex dominated flows etc. However, most applications advance the level set equation with explicit time integration. Hence, small time steps are needed to maintain stability. In this paper, an implicit level set method is introduced and applied to wildland fire spread model, removing vulnerability to instability.