Miracle-dz/UniFAR-FTUs huggingface dataset:
Natural convection in polyethylene glycol based molybdenum disulfide nanofluid with thermal radiation, chemical reaction and ramped wall temperature

The aim of this study is to investigate the unsteady magnetohydrodynamic (MHD) flow of Casson nanofluid over an infinite oscillating vertical plate with ramped wall temperature. The effects of porosity, thermal radiation and first order chemical reaction have been considered. Polyethylene glycol (PEG) is chosen as base fluid which contained molybdenum disulfide (MoS2 ) nanoparticles. The Laplace transform technique is applied to the momentum, energy and concentration equations to obtain the closed form solutions. The obtained solutions are for both cases ramped and isothermal boundary conditions and compared graphically. From graphical analysis, it is observed that for isothermal plate, the magnitude of velocity, temperature and concentration profiles are greater than ramped wall temperature. Skin-friction, Nusselt number and Sherwood number are evaluated and presented in tabular forms. The effects of various embedded parameters on velocity, temperature and concentration profiles are discussed graphically.
Ultralow-Noise SiN Trampoline Resonators for Sensing and Optomechanics

In force sensing, optomechanics, and quantum motion experiments, it is typically advantageous to create lightweight, compliant mechanical elements with the lowest possible force noise. Here we report wafer-scale batch fabrication and characterization of high-aspect-ratio, nanogram-scale Si$_3$N$_4$ "trampolines" having quality factors above $4 \times 10^7$ and ringdown times exceeding five minutes (1 mHz linewidth). We measure a thermally limited force noise sensitivity of 16.2$\pm$0.8 aN/Hz$^{1/2}$ at room temperature, with a spring constant ($\sim$1 N/m) 2-5 orders of magnitude larger than those of competing technologies. We also characterize the suitability of these devices for high-finesse cavity readout and optomechanics applications, finding no evidence of surface or bulk optical losses from the processed nitride in a cavity achieving finesse 40,000. These parameters provide access to a single-photon cooperativity $C_0 \sim 8$ in the resolved-sideband limit, wherein a variety of outstanding optomechanics goals become feasible.
A versatile interface model for thermal conduction phenomena and its numerical implementation by XFEM

A general interface model is presented for thermal conduction and characterized by two jump relations. The first one expresses that the temperature jump across an interface is proportional to the interfacial average of the normal heat flux while the second one states that the normal heat flux jump is proportional to the surface Laplacian of the interfacial average of the temperature. By varying the two scalar proportionality parameters, not only the Kapitza resistance and highly conducting interface models can be retrieved but also all the intermediate cases can be covered. The general interface model is numerically implemented by constructing its weak form and by using the level-set method and XFEM. The resulting numerical procedure, whose accuracy and robustness are thoroughly tested and discussed with the help of a benchmark problem, is shown to be efficient for solving the problem of thermal conduction in particulate composites with various imperfect interfaces.
Disablement in later life: moving beyond health determinants?

The conceptual model developed by Verbrugge and Jette (1994) has identified an individual’s health and the environment in which they live, as key determinants of their process of disablement. However, beyond health and environmental risk factors, and focusing on the latter part of the life course, there has been less emphasis in the literature on the influence of an older person’s demographic and socio-economic characteristics on their risk of becoming disabled in later life. This paper uses data from the English Longitudinal Study of Ageing to show that although an older person’s physical limitations are the strongest determinants of disability in later life, other characteristics relating to their social circumstances, psychological and mental well-being play a key role in determining disability and need for care
C1q/TNF-Related Protein5 (CTRP5) as a Biomarker to Predict Metabolic Syndrome and Each of Its Components

Objective C1q/TNF-related protein5 (CTRP5) is a member of the C1q/tumor necrosis factor α- (TNF-α-) related protein family and has been reported to be associated with the regulation of glucose and lipid metabolism. However, the clinical association between CTRP5 and metabolic syndrome (MetS) has not been reported. The aim of the current study is to investigate the association between CTRP5 and MetS by a cross-sectional study. Methods We performed a cross-sectional study in a Chinese population including 89 controls and 88 MetS individuals. Serum CTRP5 concentrations were determined by ELISA. The relationship between circulating CTRP5 and MetS and insulin resistance (IR) was assessed by Spearman's correlation and multiple stepwise regression analysis. Results Circulating CTRP5 concentrations were markedly decreased in MetS individuals relative to normal adults. Overweight/obese individuals (BMI ≥ 25 kg/m2) showed a lower serum CTRP5 level than lean subjects (BMI < 25 kg/m2) in the study population (124.1 (99.12–147.37) vs. 103.9 (79.15–124.25) μg/L; P < 0.01). Circulating CTRP5 was found to be correlated negatively with BMI, FAT%, FBG, WHR, SBP, HbA1c, TG, 2-hour blood glucose after glucose overload (2-hOGTT), FIns, and HOMA-IR and positively with HDL-C (P < 0.05 or P < 0.01). Binary logistic regression revealed that serum CTRP5 levels were associated with MetS. In addition, serum CTRP5 levels gradually decreased with the increase in MetS components. Conclusions Circulating CTRP5 is relative to the elevated risk of MetS in humans and may be in part through the effect of insulin resistance. This trial is registered with ChiCTR-OCS-13003185.
The role of culture in the acceptance of elderly towards social assertive robots : how do cultural factors influence the acceptance of elderly people towards social assertive robotics in the Netherlands and Japan?

Because of demographic aging in western countries new ways have to be found to deal with the number of elderly and the lack of people in the workforce. Using social assertive robots in nursing homes or elderly homes may provide the solution. Before taking a big step into the future more needs to be known about the acceptance of elderly towards technology. Moreover, does culture play a role to what extent elderly will except robots into their lives? By using three of Hofstede’s cultural dimensions in this thesis I will try to compare whether there are differences between the Netherlands and Japan regarding the acceptance of robots by elderly people. Using a comparative case analysis it was shown that some differences can be found but it is not clear whether these difference can be categorized under the dimensions of Hofstede or other cultural factors. Dimensions that are strongly visible in the Netherlands is individualism and in Japan uncertainty avoidance. One thing can be hypothesized from this thesis is that Culture has an influence on the acceptance of elderly people towards social assertive robotics.
Inequality and Structural Change Under Non-Linear Engels' Curve

We analyze the relationship between income inequality and structural change in the sectoral composition of the tradable and the non-tradable sectors. We construct a small open economy two sector model where preferences imply non-linear Engel curves and we show that the relationship between income inequality and structural change crucially depends on the non-linearity of the Engel curves. We calibrate this model to the US economy in the period 1960-2010 and we show that it explains the observed patterns of structural change in terms of the sectoral composition of consumption and employment, it also explains the increase in inequality measured by the Gini index and, finally, it is consistent with the large reduction in the trade balance. From the analysis of several counterfactual exercises, we obtain the following insights: (i) income inequality contributes to explain structural change and reduces GDP when Engel curves are non-linear; (ii) asset accumulation and the time path of GNP do not depend on the level of inequality, but on the evolution of income inequality; and (iii) a rising inequality implies a faster accumulation of assets, a larger growth of GNP and a faster deterioration of the trade balance.
DESARROLLO DE LAS COMPETENCIAS BÁSICAS DE LOS ESTUDIANTES DE EDUCACIÓN SUPERIOR MEDIANTE LA e-EVALUACIÓN ORIENTADA AL APRENDIZAJE

La e-Evaluacion orientada al aprendizaje (e-EOA) es un proceso de aprendizaje, mediado por las TIC, que promueve el desarrollo de competencias utiles para el presente academico y el futuro laboral de los estudiantes. En esta investigacion cuasi-experimental, con diseno pretest-postest con grupos experimentales y de control, consideramos que las actuaciones de la e-EOA (VI) favorecen un mayor desarrollo de competencias (VD). Los resultados revelan que en los grupos experimentales se mejora el nivel competencial y existen diferencias significativas entre su pretest-postest. Ademas, se comprueba que las competencias que mejoran son coherentes con la teoria planteada (creatividad, resolucion de problemas…).
CONCEPTUALIZING END-USER ROLES IN INNOVATIVE PUBLIC PROCUREMENT – CASE STUDY ON USER ENGAGING PROPERTY PROCUREMENT PROJECTS

This paper examines the roles of public service end-users in innovative public procurement projects. Innovative public procurement procedures aim to expand the responsibilities of supplier in the procurement and reconceptualize purchasing as a process of social construction between various actors. A key source for improving publicly valued outcomes of the procurement lies in user and community co-production. Even though the importance of user engagement has been widely acknowledged by public administration research, the discussion both on the means of engagement and role of service end-users has been limited. Besides scholars, the procurement practitioners tend to lack a clear understanding on who the client of the public procurement is and, therefore, do not know whose needs they’re supposed to satisfy. The purpose of the study is to improve understanding on the importance of different end-user roles for the outcomes of innovative public procurement projects. Our theoretical approach on the position and role concepts follows the research on business networks. Hence, the concept of position illustrates the expectations users are given by themselves and other actors whereas the concept of role represents the situation-specific character end-user adopts through sensemaking in the procurement process. The dual challenge for procurement practitioners is to understand both the nature of user in different roles and to interact properly with each of these roles. The findings are based on end-user engagement processes of three innovative public procurement projects in Finland with a shared emphasis on close end-user involvement throughout the procurement. Three kinds of data is used for the in-depth case analysis: semistructured interviews, public domain documents and participant observation. We suggest four situational roles end-users take in user engagement process of innovative public procurement projects: conventional, cooperative, collaborative and controlling Even though end-users in cooperative and collaborative roles can be seen most influential for innovative outcomes of the procurement, also conventional and controlling roles can be seen essential for creating value in interaction with different end-user groups and different stages of the procurement process. Conceptually, study offers a more comprehensive illustration of end-user roles in the context of innovative public procurement practices. The paper reasserts the dispute of viewing the public procurement end-user only through interpretations of either private sector consumer or public sector citizen.
Towards Ecological and Embodied Design of Auditory Display

Auditory display research has been criticised over a perceived lack of progress in tackling key issues relating to usability and user-experience. However, emerging trends in design-thinking present new tools for addressing the usability concerns that have long beleaguered this field of inquiry. In this paper, we provide an in-depth analysis on the emergence of design-based approaches in auditory display research by mapping out the progression of current research in the field. Through an ecological and embodied approach to perception and cognition, we then evaluate user-centric design strategies as tools for better understanding complex design spaces and improving usability. We then present a discussion to elucidate the benefits to auditory display research of employing usercentric design strategies for future projects.
Foreign Exchange Implied. Variance and the Forward Premium Puzzle

We explore the hypothesis that Jensen’s Inequality is related to the magnitude of the commonly observed difference between forward rates and the subsequent realizations of spot exchange rates. Compared to the standard specification, it is shown that using the option-implied variance of the spot rate as an additional regressor in the unbiased forward specification results in slope coefficients that are closer to their theoretical value of unity. Furthermore, implied variance is found to have a higher explanatory power over future spot returns compared to that of the forward premium. Our empirical findings are consistent with the hypothesis that the time-varying risk-premium documented in previous studies contains a Jensen’s term of the future spot variance.
Haemorheology in dilute, semi-dilute and dense suspensions of red blood cells

We present a numerical analysis of the rheology of a suspension of red blood cells (RBCs) in a wall-bounded shear flow. The flow is assumed as almost inertialess. The suspension of RBCs, modelled as biconcave capsules whose membrane follows the Skalak constitutive law, is simulated for a wide range of viscosity ratios between the cytoplasm and plasma, $\unicode[STIX]{x1D706}=0.1$ –10, for volume fractions up to $\unicode[STIX]{x1D719}=0.41$ and for different capillary numbers ( $Ca$ ). Our numerical results show that an RBC at low $Ca$ tends to orient to the shear plane and exhibits so-called rolling motion, a stable mode with higher intrinsic viscosity than the so-called tumbling motion. As $Ca$ increases, the mode shifts from the rolling to the swinging motion. Hydrodynamic interactions (higher volume fraction) also allow RBCs to exhibit tumbling or swinging motions resulting in a drop of the intrinsic viscosity for dilute and semi-dilute suspensions. Because of this mode change, conventional ways of modelling the relative viscosity as a polynomial function of $\unicode[STIX]{x1D719}$ cannot be simply applied in suspensions of RBCs at low volume fractions. The relative viscosity for high volume fractions, however, can be well described as a function of an effective volume fraction, defined by the volume of spheres of radius equal to the semi-middle axis of a deformed RBC. We find that the relative viscosity successfully collapses on a single nonlinear curve independently of $\unicode[STIX]{x1D706}$ except for the case with $Ca\geqslant 0.4$ , where the fit works only in the case of low/moderate volume fraction, and fails in the case of a fully dense suspension.
Face Detection Approaches: A Survey

Now a day‘s face plays major role in social intercourse for conveying identity and feelings of person. Persons have marvellous ability to identify different faces than machines. So face detection plays major role in face recognition, facial expression recognition, head-pose estimation, human-computer interaction, etc. Face detection is a computer technology that determines the location and size of human face in arbitrary (digital) image. This paper presents all comprehension and critical survey of algorithms through which face detection is possible.This document gives formatting instructions for authors preparing papers for publication in the Proceedings of an International Journal. The authors must follow the instructions given in the document for the papers to be published. You can use this document as both an instruction set and as a template into which you can type your own text.
Substructure and merger detection in resolved NIKA Sunyaev-Zel’dovich images of distant clusters

Substructures in the hot gas atmosphere of galaxy clusters are related to their formation history and to the astrophysical processes at play in the intracluster medium (ICM). The thermal Sunyaev-Zel’dovich (tSZ) effect is directly sensitive to the line-of-sight integrated ICM pressure, and is thus particularly adapted to study ICM substructures. In this paper, we apply structure-enhancement filtering algorithms to high-resolution tSZ observations (e.g., NIKA) of distant clusters in order to search for pressure discontinuities, compressions, and secondary peaks in the ICM. The same filters are applied to toy-model images and to synthetic tSZ images extracted from RHAPSODY-G cosmological hydrodynamic simulations, in order to better interpret the extracted features. We also study the noise propagation through the filters and quantify the impact of systematic effects, such as data-processing-induced artifacts and point-source residuals, the latter being identified as the dominant potential contaminant. In three of our six NIKA-observed clusters we identify features at high signal-to-noise ratio that show clear evidence for merger events. In MACS J0717.5+3745 (z = 0.55), three strong pressure gradients are observed on the east, southeast, and west sectors, and two main peaks in the pressure distribution are identified. We observe a lack of tSZ compact structure in the cool-core cluster PSZ1 G045.85+57.71 (z = 0.61), and a tSZ gradient ridge dominates in the southeast. In the highest redshift cluster, CL J1226.9+3332 (z = 0.89), we detect a ridge pressure gradient of ~45 arcsec (360 kpc) in length associated with a secondary pressure peak in the west region. Our results show that current tSZ facilities have now reached the angular resolution and sensitivity to allow an exploration of the details of pressure substructures in clusters, even at high redshift. This opens the possibility to quantify the impact of the dynamical state on the relation between the tSZ signal and the mass of clusters, which is important when using tSZ clusters to test cosmological models. This work also marks the first NIKA cluster sample data release.
From Face to face to Face… book. New methodologies for using Facebook as a teaching tool

Unlike traditional teaching methods (face to face, in which a plurality of individual interfaces with the physical shape of a teacher), the modern technological systems have sparked numerous innovations to improve teaching methods. You hear about blended learning: integrating various methodologies (traditional and innovative) to provide a new pedagogical style to students. An important platform to facilitate the learning of university activities is Facebook: since 2004, the most popular social network in the world, with about one billion active users. In recent years, however, it has also been recognized as a useful e-learning platform. Thanks to Facebook, benefits of learning are associated to a better communication among students, a better access to resources and a better management of logistics courses. The social network involves students using technologies which are familiar to the new generations: There is an increasement of interactivity and collaboration, flexibility and networking. We must of course pay attention to the critical issues arising from the dangers of stalking, distractions, lack of privacy, but the advantages of a greater access to information, a better way to analyze researching capabilities and many other advantages make Facebook a new and important frontier for modern teaching.
What is the impact of GOLD 2017 recommendations in primary care? – a descriptive study of patient classifications, treatment burden and costs

Purpose The changes in grading of disease severity and treatment recommendations for patients with COPD in the 2017 GOLD strategy may present an opportunity for reducing treatment burden for the patients and costs to the health care system. The aim of this study was to assess the implications of the GOLD 2017 grading system in terms of change in distribution across GOLD groups A–D for existing patients in UK primary care and estimate the potential cost savings of implementing GOLD 2017 treatment recommendations in UK primary care. Patients and methods Using electronic health record data from the Clinical Practice Research Datalink (CPRD), patients aged ≥35 years with spirometry-confirmed COPD, receiving care during 2016, were included. The cohort was graded according to the GOLD 2017 groups (A–D), and treatment costs were calculated, according to corresponding recommendations, to observe the difference in actual vs predicted costs. Results When applying GOLD 2013 criteria, less than half of the cohort (46%) was assigned to GOLD A or B, as compared to 86% when applying the GOLD 2017 grading. The actual mean annual maintenance treatment cost was £542 per patient vs a predicted £389 for treatment according to the 2017 GOLD strategy. Conclusion There is a potential to make significant cost savings by implementing the grading and treatment recommendations from the 2017 GOLD strategy.
SCREENING FOR ANTIMICROBIAL, PHYTOCHEMICAL AND ANTIOXIDANT PROFILE OF SOME WILD FRUITS

Abst ract The spread of antimicrobial resistance among pathogenic microorganisms has rendered most conventional drugs redundant. New sources of antimicrobial agents are being harnessed to develop novel drugs. The antibacterial activity of aqueous and ethanolic extracts of twenty fruits and seeds were evaluated against some multi-drug resistant clinical isolates Staphylococcus aureus, Salmonella typhii, Pseudomonas aeruginiosa and Escherichia coli. Standard methods of antimicrobial and phytochemical assays, DPPH and nitric oxide radical scavenging, total antioxidant capacity and reducing power assays were employed. Broad spectrum antibacterial activity was shown by extracts of six out of the twenty plants: Caryota mitis, Cassia javanica, Syzygium samarangense, Veitchia merrilli, Bauhinia tomentosa and Cassia fistula with inhibition zones ranging from 20:t0.8 to 25:t0.1 mm. The minimum inhibitory and bactericidal concentrations of the extracts were between 7.8 to 31.2 mg/ml and 15.6 and 62.5 mg/ml respectively. Phytochemicals present includes saponins, alkaloids, terpenoids, glycosides and high phenol and flavonoid contents in the range of 71.19 50.20mg/100g and 47.14 34.42mg/100g respectively. The extracts had considerably high antioxidant activity with IC50 values of 41.121-lg/ml in B. tomentosa and 36.57! -lg/ml in C. fistula. C. mitis had a total antioxidant capacity of 34.89 mg/100g. High phenol and flavonoid contents of the extracts significantly correlated with high antioxidant capacity. The presence of antimicrobial and antioxidant properties in these wild fruits and seeds opens up a new perspective in biotherapy as they could be harnessed as alternative drugs for treatment of microbial infections and management of diseases.