Miracle-dz/UniFAR-FTUs huggingface dataset:
Hybrid lubrication of PFPE Fluids and Sputtered MoS2

We present an overview of the recent activities performed by the European Space Tribology Laboratory (ESTL) into the potential of hybrid lubrication of PFPE fluids (Fomblin Z25 & Braycote 601EF) and sputtered MoS2. Test campaigns were performed using a spiral orbit tribometer (SOT), pin-on-disc tribometer (PoD), and at spur-gear level. Results demonstrated mixed behavior of hybrid lubrication. In the best case the lifetime is extended beyond that predicted by the individual constituent lubricants, with no elevation in friction coefficient. In the worst case the application of a grease to the sputtered MoS2 appears to inhibit the favorable tribological behavior of the solid lubricant film, reducing the lifetime and elevating the friction/torque. The degree of success of hybrid lubrication appears to be related to the physical properties of the applied fluid lubricant (film thickness, viscosity), rather than the tribo-chemical lifetime. A model is proposed by which this behavior occurs. We gratefully acknowledge that this work was funded by the European Space Agency.
The dependence of COx and NOx emission concentrations on the excess air coefficient during combustion of selected agricultural briquetted by-products

Abstract. The issue of CO, CO2 and NOx emissions is very extensive and important. The aim of the paper is the experimental determination of the CO, CO2 and NOx emission dependencies on the amount of excess air. Materials used for the experiments were several types of briquetted biomass. Crops used were Czech knotweed (Reynoutria × bohemica), Rumex hybrid OK 2 (Rumex patientia × Rumex tianschanicus), meadow hay and timothy grass (Phleum pratense). For all samples proximate and elemental analyses were performed (semiautomatic calorimeter LECO AC-600 elemental analyser CHN628 + S and analyser LECO TGA-701) and stoichiometric calculations of combustion were made. Combustion device used in combustion tests was a hot air stove with a grate fireplace and with manual fuel supply. The combustion process was monitored by analyser Madur GA-60. Parameters monitored during the combustion tests were primarily the flue gas temperature and the emission levels of carbon monoxide, carbon dioxide and nitrogen oxides. Analyses and calculations of plant biomass samples indicate their good properties for energy use. The gross calorific value was as high as 19.55 MJ.kg in the sample of Rumex OK 2. Limiting factor is the high quantity of ash in plant material. The briquettes from timothy grass achieved 5.77% wt. ash in the dry matter. The excess combustion air had positive influence during combustion test. On the other hand, this caused heat loss by departing flue gases, wherein the flue gas temperature reached high values. The excess air coefficient also significantly affected the emission levels of carbon dioxide and monoxide and nitrogen oxides in the flue gases. Results were statistically analysed and complemented by regression equations, which in practice can be used to optimize the combustion process in boilers with manual fuel supply.
Class size : appropriate student-teacher ratios in early childhood classrooms in relation to student achievement

The purpose of this literature review was to examine the effects of reduced class sizes in early childhood classrooms in relation to student achievement, and to present guidelines for implementing class-size reduction programs and practices in K-3 classrooms. Averageand actual-class size, student-teacher ratios, per-pupil expenditures, student achievement, health and wellbeing, curricula, and cost-effectiveness were discussed. In researching recent literature for this review, multiple searches were conducted including searches for class-size reduction, student-teacher ratios, cost-effectiveness, and districts that implemented class-size reduction programs. Gilman (1988) conducted research on Tennessee's Project STAR which served as a basis for continued research. Summative findings included student-teacher ratios, which are an integral part of student achievement, also guidelines for future class-size reduction programs were developed to improve learning experiences for young children.
Prototyping a web-based phonetic training game to improve /r/-/l/ identification by Japanese learners of English

Even after years of study, language learners may have dif-ﬁculty perceiving L2 sounds. For instance, Japanese listeners show difﬁculty differentiating American English /r/ and /l/. Previous research has shown that phonetic training may improve learners’ perception of the contrast. While this training paradigm appears as a promising tool for language learning, its transition from the laboratory to the classroom needs to be facilitated. Not only does phonetic training require recording and/or manually editing many training exemplars, training sessions are also often long and repetitive. Given these obstacles, the long-term goal is to make phonetic training more applicable to real-life learning. In this preliminary study, we prototype a self-paced, web-based phonetic training program, featuring both identiﬁcation and discrimination tasks as playable mini-games. Participants are trained using nonword minimal pairs (e.g., /lapu/-/rapu/), presented in isolation in clean speech. Their ability to identify the target phonemes is assessed before and after training, with stimuli also presented in noise and/or in sentences, to test perceptual robustness. We assess the effectiveness of the phonetic training game in its current form and discuss future improvements, notably in the context of using speech engineering to automate and augment High Variability Phonetic Training (HVPT) programs.
SERVICE RECOMMENDATION SYSTEM IN SOCIAL NETWORKS

Social networks have become an inevitable part of today’s life. The content from social media can be used for a number of purposes; one of the main being recommendation systems (RS). Traditional recommendation systems ignored the concept of social media and its influence on people. There have been a lot of RS in industry since the last decade. In this paper, we have proposed a new system called Service Recommendation in Social Networks (SRSN) based on a keyword approach which overcomes the drawbacks of current generation of RS. It utilizes the concept of user based collaborative filtering algorithm (UCF) in generating recommendations. SRSN is designed to work in big data environments as it is implemented in Hadoop, a map reduce paradigm.
Momentum and Reversal : A Long-Short Joint Approach

This paper jointly considers opinions of the long and the short to examine short-term momentum and long-term reversal. A joint consideration of recent past returns (opinions of optimistic investors) and short interest (opinions of pessimistic investors) could efficiently identify ex ante stocks that exhibit persistent momentum and those that exhibit persistent reversals. The identification is more pronounced among stocks with binding short-sale constraints. Momentum and reversal are not necessarily linked. Stocks with low (high) divergence of long-short opinion experience persistent momentum (reversals). Further analyses of the short interest provide new evidence that short sellers are informed and sophisticated, helping explain the identification effect of the joint approach.
Distribution of available nutrients and land capability classification of some pulse growing soils of Narsinghpur district , Madhya Pradesh

Six representative soil pedons in Supla, Dhamna and Malahpipariya villages of district Narsinghpur were exposed and studied for their vertical distribution of available nutrients and land capability classification. The soils were low in available N (<250 kg ha), low to medium in available phosphorus (4.7 to 13.8 kg ha ) and medium to high in available K (317 to 769 kg ha). Available S (2.0 to 12.8 mg kg) and Zn (0.24 to 0.61 mg kg) were found low to medium in all the soils. Soil irrigability classes in all pedons were found as B. It was observed that lands with irrigability classes 2 and 3 were most dominant covering large cultivated area. The area under Supla, Dhamna and Malahpipariya villages were classified in II and III land capability classes.
The impact of greening schoolyards on the appreciation , and physical , cognitive and social-emotional well-being of schoolchildren : A prospective intervention study

Greening schoolyards is an initiative to reconnect children with nature and afford meaningful experiences that foster children’s well-being. To strengthen the empirical basis for greening schoolyards, we conducted a longitudinal prospective intervention study with a two-year follow-up, to investigate the impact of greening schoolyards on schoolchildren’s (age 7–11) appreciation of the schoolyard, and their physical, cognitive, and social-emotional well-being. Data were collected amongst nine elementary schools in moderate-to-high-urbanized areas in The Netherlands with approximately 700 children at each measurement. At baseline, all nine schoolyards were paved. Five schools greened their schoolyard between baseline and first-follow-up. Objective measurements included accelero-based measurements of physical activity during recess, attentional tests (Digit Letter Substitution Test, Natu & Argwal, 1995; Sky Search Task, Manly et al., 2001) and a social orientation test (Social Orientation Choice Card, Knight, 1981). Self-report questionnaires included children’s appreciation of the schoolyard (naturalness, likability, attractiveness and perceived restoration), and their socialand emotional well-being (Strength and Difficulties Questionnaire, van Widenfelt, Goedhart, Treffers & Goodman, 2003; Social Support, RIVM, 2005; Pediatric Quality of Life Inventory, Varni, Seid & Kurtin, 2001). Multilevel data analyses support our expectation that greening has a positive impact on children’s appreciation of the schoolyard, their attentional restoration after recess and social well-being. Furthermore, our results indicate that greening stimulates physical activity of girls. We found no impact on emotional well-being. These findings provide some support for the relevance of greening schoolyards and may guide further development of schoolyards that facilitate the well-being of schoolchildren.
Challenges in measuring poverty in developing countries ( on the example of Latin America )

Poverty as a socio-economic phenomenon exists since the beginning of the economic system formation. It is typical for any type of society (from primitive to post-industrial) and has a long history of studying. However, scientists, trying to find the ways to prevent this threat through carrying out the poverty research, elaborating effective instruments to combat it and assessing the impact of poverty reduction programs, face serious issues in measuring poverty. In the paper, the major problems arising during the academic research of poverty were identified. Besides, in order to optimize the collection of statistics and improve its quality, a new approach to calculate and apply poverty thresholds for international comparisons was proposed – the method of the multi-factorial classification that will allow a complex solution of the task, taking into account the mutual influence of stimulating and limiting factors. Also, in the article, the dynamics of international activities in poverty eradication is traced. It highlights the importance of international organizations in combating poverty and accumulating statistics by countries on the wide range of indicators of socio-economic development.
FEMALE LABOR FORCE PARTICIPATION IN MALAYSIA: TIME-SERIES EVIDENCE

Human resource is one of the main contributing factors for economic growth and for social, political, and technological development. Even though Malaysia has been experiencing a significant demographic change in workforce pattern with increasing participation of women since its independence in 1957, the participation rate of women in the labor market is still lower (around 46%). In order to examine determinants of women labor force participant rate in Malaysia, this paper uses the autoregressive distributed lag (ARDL) co-integration framework, and the results based on the bounds testing procedure confirm that a long-run relationship exists between women labor force participant rate and its determinants: GDP, education rate and fertility rate. The empirical results show that the comprehensive long-term influence of the GDP, education and fertility rate on women labor force participant rate seems to be statistically insignificant. The coefficient of GDP and education are positive, and the coefficient of fertility rate is negative, which suggests that in the long run, increase in female labor force participant is associated with increase in GDP and education, and decrease in Fertility rate. The results also reveal that after incorporating the CUSUM and CUSUMSQ tests, women labor force participant rate function is stable between 1980 and 2015.
Representing spatial relations with fractional binding

We propose a cognitively plausible method for representing and querying spatial relationships in a neural architecture. This technique employs a fractional binding operator that captures continuous spatial information in spatial semantic pointers (SSPs). We propose a model that takes an image with several objects, parses the image into an SSP memory representation, and answers queries about the objects. We demonstrate that our model allows us to not only store and extract objects and their spatial information, but also perform queries based on location and in relation to other objects. We show that we can query images with 2, 3, and 4 objects with relative spatial locations. We also show that the model qualitatively reproduces Kosslyn’s famous map experiment.
A Study to Determine the Prevalence of Catheter Associated Urinary Tract Infection in Surgical Wards and Recovery Room in a Tertiary Healthcare Centre in Central India

Background: Amongst all Hospital Acquired Infections, CAUTI is most commonly encountered. CAUTI impact is reflected from increased duration of hospital stay and antibiotic resistance. This poses a problem in the surgical patients who are debilitated either due to underlying pathology or major surgery. This study was aimed to find the prevalence of CAUTI in such patients. Methods: It was prospective observational study conducted between July 2016 to November 2018 in catheterized patients with minimum duration of indwelling catheter to be 3 days. Urine samples were collected immediately, 48 hours and 120 hours after catheterization and subjected to microbiological analysis. Results: Out of 400 patients with male to female ratio of 1.23 : 1, 65 developed CAUTI (16.25 %) and 22 patients had symptomatic bacteriuria (non CAUTI – 5.5 %). CAUTI rate was 23.06 per 1000 catheter days. Infection rate among males was 13.12 % while that in female was 20.11 %. 19 and 46 patients developed CAUTI after 48 hours and 120 hours of indwelling urinary catheters respectively. Most common organism was found to be E. coli. Discussion: Overall, this study shows a high incidence of CAUTI in females (p = 0.003). This study showed a high incidence of CAUTI in age group 51 – 60 years in males (23.07 %) and in age group 61 – 70 years in females (47.06 %). Acinetobacter and Citrobacter were found to be isolated from patients admitted in ICU with sensitivity to higher antibiotics. C. albicans was associated with a long term antimicrobial treatment and long duration of urinary indwelling catheter.
Innovation Output : An Empirical Study of 19 Technologies in Germany Working

It has been repeatedly shown that universities and public research institutes contribute to local innovation generation and facilitation. The mechanisms behind this contribution are well discussed in the literature. However, detailed empirical examinations are missing. We analyse the impact of universities and public research on regional innovation output. Thereby we analyse separately 19 technologies and distinguish whether university education and public research are rather innovation generators or innovation facilitators. All analyses are conducted on German data.
External Shocks under Different Exchange Rate Regimes in Low-Income Economies

This paper uses the cash-in-advance model to explore the precautionary savings against external shocks under different exchange rate regimes. The low-income countries mainly face external shocks from the current account, which includes productivity, international aid, terms of trade, external demand, and foreign monetary policy. Agents hold assets to smooth the consumption under the floating exchange rate regime. However, the assets not only stabilize the exchange rate but also smooth consumption under the pegged exchange rate regime. Facing uncertainty, households put more weight on precautionary motive, instead of investment motive. The impulse response function reveals that the initial deviations are more significant with the pegged exchange rate regime because the nominal exchange rate can not absorb the macroeconomic shocks. The floating exchange rate regime could reduce the variance of domestic consumption, while the pegged exchange rate regime would be better to stabilize imported consumption. Furthermore, the foreign monetary policy shocks show significant differences between the two regimes.
QOS Based Data Privacy Using Pearson Correlation for Secured Wireless Body Area Network

Wireless Body Area Networks (WBANs) provides efficient communication to the omnipresent health care systems. A small sensor is inserted into the human body and monitors an individual’s health and collects the data, store and transmits a health care center over wireless links. During the transmission, better quality of service based secured communication is the major issues for achieving data privacy. Recently many research works has been designed for secured communication but it still not provides the better quality of services for enhancing the security of sensed data. In order to provide secured QoS for sensed data, Data privacy based Pearson Correlation Coefficient (DP-PCC) scheme is introduced. DP-PCC scheme is used for channel assignment to obtain better QoS for secured communication in WBAN. Initially, Sensed data are classified as emergency constrained or normal data based on data transfer rate. After that, bandwidth availability is measured in traffic conditions to send the data packet over a network. Then the Pearson correlation is used to measure the relationship between the available bandwidth and data packet to assign the priority. Then the channel is allocated to higher priority for effective transmission. With the allocated channel, Elliptic curve cryptography is applied for secured data packet transmission in such a way to provide better QoS in WBAN. The simulation is carried out to analyze the performance of proposed DP-PCC scheme with the parameters such as throughput, delay, Sensed data privacy level and data loss with number of data packets and size.
doctor patient relationship in the case of infertility a vision from general medicine

The General Practitioner (GP) takes care of patients with infertility with some frequency, and probably this will be even greater because of ART. Infertility involves a family crisis. The doctor-patient relationship is especially important in these patients and has some typical nuances that include, at least, 1) Know the context and use it in the doctor-patient relationship; 2) Easy access to the GP; 3) Unique case; 4) Family and couple care; 5) The importance of information; 6) Recognize the psychological factors in the doctor-patient with sterility relationship; 7) Recognize the factors related to the quality of life; 8) The repercussions of the diagnosis; 9) Patient participation and shared decision making; 10) The importance of continuity of care; 11) Social support; And 12) The importance of the repercussions of the treatment. The infertility approach is biopsychosocial in nature, and so, it is essential that the GP establish an affective relationship with patients with infertility for creating a solid basis on psychological support. Some of the practical implications of the work of the GP, which are embedded in the doctor-patient relationship are: working on the acceptance of emotions and thoughts so that they do not overflow or paralyze patients, managing tension and anxiety, advise on sexual intercourse, preparing the couple for the chances of having multiple pregnancy, preparing the couple to face possible treatment failures, managing anxiety and uncertainty while waiting for the results of treatment, developing and training communication skills in the couple to use with family and friends, preparing couple, to make decisions that are often difficult, such as using donors, stopping the treatment or ending it, maintaining a continuity of care, and deciding when to refer for psychological intervention.
Regional Brand Perception by Wine Tourists within a Winescape Framework

* Purpose: The purpose of this study is to conceptualise a wine regional destination’s perceived (brand) image by integrating grounded theories such as servicescape, place-based and destination choice. * Design: The research (n = 334 respondents) outlines the conceptualisation of a wine region destination’s image in the form of a winescape framework as perceived by visitors using a free-form instead of an attribute-based approach. The winescape construct is identified within a framework of eight dimensions for a well-known USA wine region. * Findings: The most important winescape dimension is the natural beauty/geographical setting. The first-time and repeat visit dynamic impacts upon visitors’ wine tourism behaviour and perception of the region’s winescape. For in-state and out-of-state based visitors there are pronounced differences in the perception of the region’s winescape dimensions. Increasing distance from the destination region is pivotal in the perception of the winescape dimensions. Practical implications: Increasing distance from the destination region is pivotal in the perception of the winescape dimensions.