Miracle-dz/UniFAR-FTUs huggingface dataset:
Content exchange among mobile tourists using users' interest and place-centric activities

In this work we investigate decentralized content exchange among tourists who are mostly strangers, depicts irregular movement patterns and most likely not to have any prior social relationship or difficult to establish any in a tourist spot. We incorporate user's interest, trustworthy online recommendations, and place-centric information to facilitate content exchange in such tourist destinations. The proposed administrator selection policy considers stay probability in activities, connectivity among nodes and their available resources. We have done extensive simulation using network simulator NS3 on a popular tourist spot in Australia that provides a number of activities. Our proposed approach shows promising results in exchanging contents among users measured in terms of content hit and delivery success rate as well as latency. The success rate is comparable to those reported in the literature for cases where social relationship exist and nodes follow regular predictable movement patterns.
The relationship between work and family preferences and behaviors

Proposed theories to explain gender inequality in the labor market and family, such as gender specialization within families and gender segregation in the labor markets, lack consideration for individual preferences. Preference theory accounts for individual choice and gendered preferences but has been substantially criticized, indicating a need for further research. This study uses Swedish longitudinal data to explore how preferences for work and family relate to behavior. We explore three critical issues raised in previous research: gender differences in preferences; the relationship between work and family changes and subsequent preferences; how preferences relate to work and family behaviors. Our results showed small general gender differences in preferences, although women had a stronger preference for both children and work than men. Changes in work status were further related to changes in work preferences, while changes in family status were related to changes in family preferences. Moreover, preferences had poor predictive power in relation to work and family behaviors. Our results indicate that preferences do not explain gender inequality in Sweden. The relationship between preferences and behaviors seems bidirectional and preferences and behavior within the family sphere has little to do with preferences and behavior within the work sphere.
Maternal and Perinatal Outcomes of Exercise in Pregnant Women with Chronic Hypertension and/or Previous Preeclampsia: A Randomized Controlled Trial

Objectives. To evaluate the association between physical exercise supervised in pregnant women with chronic hypertension and/or previous preeclampsia and maternal and neonatal outcomes. Method. Randomized controlled trial, which included 116 pregnant women with chronic hypertension and/or previous preeclampsia, considered risk of preeclampsia development. They were divided into two groups: study group that performed physical exercise with a stationary bicycle once a week, for 30 minutes; the intensity was controlled (heart rate 20% above resting values), under professional supervision and a control group that was not engaged in any physical exercise. The data was retrieved from medical charts. Significance level assumed was 5%. Results. Women from study group performed 9.24 ± 7.03 of physical exercise sessions. There were no differences between groups comparing type of delivery and maternal outcomes, including maternal morbidity and hospitalization in intensive unit care, and neonatal outcomes, including birth weight, adequacy of weight to gestational age, prematurity, Apgar scale at first and fifth minutes, hospitalization in intensive unit care, and neonatal morbidity. Conclusions. Physical exercise using a stationary bicycle in pregnant women with chronic hypertension and/or previous preeclampsia, once a week, under professional supervision, did not interfere in the delivery method and did not produce maternal and neonatal risks of the occurrence of morbidity. This trial is registered with ClinicalTrials.gov NCT01395342.
Low-complexity Art Low-complexity Art Report Fki-197-94 (revised)

Many artists try to depict \the essence" of objects to be represented. In an attempt to formalize certain aspects of the \the essence", I propose an art form called low-complexity art. Its goals are based on concepts from algorithmic information theory. Suppose the task is to draw a given object. Usually there are many ways of doing so. The goal of low-complexity art is to draw the object such that the drawing can be speciied by a computer algorithm and two properties hold: (1) The drawing should \look right". (2) The Kolmogorov complexity of the drawing should be small (the algorithm should be short), and a typical observer should be able to see this. Examples of low-complexity art are given in form of \algorithmically simple" cartoons of various objects. Relations to previous work are established. Attempts are made to relate the formalism of the theory of minimum description length to informal notions like \good artistic style" and \beauty". Disclaimer: Despite being published in a tech report series, this is not a scientiic paper. Although attempts are made to formalize certain aspects of informal notions like \art" and \beauty", much of what is said remains informal and speculative. Note: The title of the original version of this paper (from September 1994) was \Algorithmic Art". There also is a long version: (Schmidhuber, 1994a). It has 68 pages, contains 27 gures, and is written in German.
Elevated CO2 and Tree Species Affect Microbial Activity and Associated Aggregate Stability in Soil Amended with Litter

(1) Elevated atmospheric CO2 (eCO2) may affect organic inputs to woodland soils with potential consequences for C dynamics and associated aggregation; (2) The Bangor Free Air Concentration Enrichment experiment compared ambient (330 ppmv) and elevated (550 ppmv) CO2 regimes over four growing seasons (2005–2008) under Alnus glutinosa, Betula pendula and Fagus sylvatica. Litter from the experiment (autumn 2008) and Lumbricus terrestris were added to mesocosm soils. Microbial properties and aggregate stability were investigated in soil and earthworm casts. Soils taken from the field experiment in spring 2009 were also investigated; (3) eCO2 litter had lower N and higher C:N ratios. F. sylvatica and B. pendula litter had lower N and P than A. glutinosa; F. sylvatica had higher cellulose. In mesocosms, eCO2 litter decreased respiration, mineralization constant (respired C:total organic C) and soluble carbon in soil but not earthworm casts; microbial‐C and fungal hyphal length differed by species (A. glutinosa = B. pendula > F. sylvatica) not CO2 regime. eCO2 increased respiration in field aggregates but increased stability only under F. sylvatica; (4) Lower litter quality under eCO2 may restrict its initial decomposition, affecting C stabilization in aggregates. Later resistant materials may support microbial activity and increase aggregate stability. In woodland, C and soil aggregation dynamics may alter under eCO2, but outcomes may be influenced by tree species and earthworm activity.
A Systematic Review on The Effectiveness of Perceptual Motor Training on Improvement in Motor Performance in Individuals with Developmental Coordination Disorder

Purpose: To systematically review published research literature to identify and evaluate the effectiveness of perceptual motor training on improvement in motor performance in individuals with Developmental Coordination Disorder (DCD). Methods : Multiple databases were methodically searched for articles related to Developmental Coordination Disorder; only descriptive, intervention or qualitative articles were retained. Results: A generalized performance deficit may be observed in majority of the children with DCD. Pronounced difficulty in internal (forward) modeling, rhythmic coordination, executive function, gait and postural control, catching and interceptive action, and aspects of sensoriperceptual function were observed in most of the individuals diagnosed with DCD. Research indicates that poor motor co-ordination has far-reaching implications for social and emotional wellbeing. DCD occurs not only in children, as motor difficulties are retained in adulthood. Conclusions : The perceptual motor training approach may result in positive outcomes in motor performance in individuals with DCD. Cognitive orientation to daily occupational performance was observed to be a superior alternative to contemporary coordination treatment approach. Furthermore, psychomotor therapy placing emphasis on music rhythm and sensory integration therapy was observed to have a sustainably facilitative impact.
Multivariate GARCH Models

This article contains a review of multivariate GARCH models. Most common GARCH models are presented and their properties considered. This also includes nonparametric and semiparametric models. Existing specification and misspecification tests are discussed. Finally, there is an empirical example in which several multivariate GARCH models are fitted to the same data set and the results compared.
"Do these words give rise to doubts?" : Unraveling the effects of delivering a victim impact statement

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PdBI sub-arcsecond study of the SiO microjet in HH212. origin and collimation of class 0 jets

Context: The bipolar HH 212 outflow has been mapped in SiO using the extended configuration of the Plateau de Bure Interferometer (PdBI), revealing a highly collimated SiO jet closely associated with the H2 jet component. Aims: We study at unprecedented resolution (0.34 farcsec across the jet axis) the properties of the innermost SiO “microjet” within 1000 AU of this young Class 0 source, to compare it with atomic microjets from more evolved sources and to constrain its origin. Methods: The SiO channel maps are used to investigate the microjet collimation and velocity structure. A large velocity gradient analysis is applied to SiO (2-1), (5-4) and (8-7) data from the PdBI and the Submillimeter Array to constrain the SiO opacity and abundance. Results: The HH212 Class 0 microjet shows striking similarities in collimation and energetic budget with atomic microjets from T Tauri sources. Furthermore, the SiO lines appear optically thick, unlike what is generally assumed. We infer Tk ≃ 50-500 K and an SiO/H2 abundance ≥4 × 10-8-6 × 10-5 for n(H_2) = 10^7-105 cm-3, i.e. 0.05-90% of the elemental silicon. Conclusions: This similar jet width, regardless of the presence of a dense envelope, definitely rules out jet collimation by external pressure, and favors a common MHD self-collimation (and possibly acceleration) process at all stages of star formation. We propose that the more abundant SiO in Class 0 jets could mainly result from rapid (≤25 yrs) molecular synthesis at high jet densities.
Mechanically temperature-compensated flexural-mode micromechanical resonators

An IC-compatible, high frequency (HF), lateral micromechanical resonator supported by a mechanical structure designed to introduce stresses that counteract temperature-induced frequency shifts, has been demonstrated at 10 MHz with a much-reduced temperature coefficient of -2.5 ppm//spl deg/C and a Q of greater than 10,000. These values constitute substantial improvements over the -17 ppm//spl deg/C and 3,000 posted by previous clamped-clamped beam vertical resonators in this frequency range, and represent significant strides towards reducing the thermal dependence of micromechanical resonators, possibly to the point where such devices can be used in on-chip high-and reference oscillator applications without the need for electronic temperature compensation.
Optical Postsynaptic Measurement of Vesicle Release Rates for Hippocampal Synapses Undergoing Asynchronous Release during Train Stimulation

Developing hippocampal neurons in microisland culture were found to undergo rapid depression of excitatory synaptic activity caused by consumption of their readily releasable pool (RRP) of vesicles in response to 20 Hz trains of stimulation. Associated with depression was a switch to an asynchronous release mode that maintained transmission at a high steady-state rate equivalent to ∼2.1 RRPs per second. We have applied postsynaptic Ca2+ imaging to directly monitor these asynchronous release events to estimate both the steady rate of transmitter release and the number of quanta within the RRP at individual hippocampal synapses. Based on the frequency of asynchronous release measured at individual synapses postsynaptically using Ca2+ imaging (5-17 sec after train stimulation) and with knowledge of the time course by which asynchronous release rates decay, we estimate that individual hippocampal synapses exhibit (in response to train stimulation) peak release rates of up to 21 quanta per second from an RRP that contains, on average, 10 quanta. Use-dependent block of evoked synaptic activity by MK-801 [(+)-5-methyl-10,11-dihydro-5H-dibenzo [a,d]cyclohepten-5,10-imine maleate] confirmed that synapses undergoing asynchronous release are not significantly different from the general population with regard to their composition of NMDA receptor and/or release probability. Given that high-frequency trains deplete the synapse of readily releasable quanta (and that these release rates can only be maintained for a few seconds), these high rates of asynchronous release likely reflect refilling of vesicles from a reserve pool and not necessarily the continuous action of a relatively slow clathrin- and endosome-dependent process.
A Neuro-Immune Network for Solving the Traveling Salesman Problem

Many combinatorial optimization problems belong to the NP class and, thus, cannot be solved optimally in feasible time using standard techniques (e.g., enumeration methods). NP problems have been tackled with some success by techniques known as meta-heuristics. The present paper proposes a new meta-heuristics for solving traveling salesman problems (TSP) based on a neural network trained using ideas from the immune system. The network is self-organized and the learning algorithm aims at locating one network cell at each position of a city of the TSP instance to be solved. The pre-defined network neighborhood is going to establish the final route proposed for the TSP. The algorithm is applied to several instances from the literature and the results compared with the best solutions available.
Effective Macroprudential Policy: Cross-Sector Substitution from Price and Quantity Measures

Macroprudential policy is increasingly being implemented worldwide. Key questions are its effectiveness in influencing bank credit and substitution effects beyond banking. Our results confirm the expected effects of macroprudential policies on bank credit, both for advanced economies and emerging market economies. But results also confirm substitution effects towards non-bank credit, especially in advanced economies, reducing the policies' effect on total credit. Quantity restrictions are particularly potent in constraining bank credit but also cause the strongest substitution effects. Policy implications indicate a need to extend macroprudential policy beyond banking, especially in advanced economies.
How sensory-motor systems impact the neural organization for language: direct contrasts between spoken and signed language

To investigate the impact of sensory-motor systems on the neural organization for language, we conducted an H215O-PET study of sign and spoken word production (picture-naming) and an fMRI study of sign and audio-visual spoken language comprehension (detection of a semantically anomalous sentence) with hearing bilinguals who are native users of American Sign Language (ASL) and English. Directly contrasting speech and sign production revealed greater activation in bilateral parietal cortex for signing, while speaking resulted in greater activation in bilateral superior temporal cortex (STC) and right frontal cortex, likely reflecting auditory feedback control. Surprisingly, the language production contrast revealed a relative increase in activation in bilateral occipital cortex for speaking. We speculate that greater activation in visual cortex for speaking may actually reflect cortical attenuation when signing, which functions to distinguish self-produced from externally generated visual input. Directly contrasting speech and sign comprehension revealed greater activation in bilateral STC for speech and greater activation in bilateral occipital-temporal cortex for sign. Sign comprehension, like sign production, engaged bilateral parietal cortex to a greater extent than spoken language. We hypothesize that posterior parietal activation in part reflects processing related to spatial classifier constructions in ASL and that anterior parietal activation may reflect covert imitation that functions as a predictive model during sign comprehension. The conjunction analysis for comprehension revealed that both speech and sign bilaterally engaged the inferior frontal gyrus (with more extensive activation on the left) and the superior temporal sulcus, suggesting an invariant bilateral perisylvian language system. We conclude that surface level differences between sign and spoken languages should not be dismissed and are critical for understanding the neurobiology of language.
Optically driven fluid flow along arbitrary microscale patterns using thermoviscous expansion

We show how fluid can be moved by a laser scanning microscope. Selected parts of a fluid film are pumped along the path of a moving warm spot which is generated by the repetitive motion of an infrared laser focus. With this technique, we remotely drive arbitrary two-dimensional fluid flow patterns with a resolution of 2μm. Pump speeds of 150μm∕s are reached in water with a maximal temperature increase in the local spot of 10K. Various experiments confirm that the fluid motion results from the dynamic thermal expansion in a gradient of viscosity. The viscosity in the spot is reduced by its enhanced temperature. This leads to a broken symmetry between thermal expansion and thermal contraction in the front and the wake of the spot. As result the fluid moves opposite to the spot direction due to both the asymmetric thermal expansion in the spot front and the asymmetric thermal contraction in its wake. We derive an analytical expression for the fluid speed from the Navier–Stokes equations. Its predictions are .
Affective influences on causal inferences : The effects of mood on attributions for positive and negative interpersonal episodes

How do moods influence the way people explain various everyday social episodes? Based on recent affect-cognition theories, this experiment predicted and found a significant mood-congruent bias in causal explanations for realistic work events. After an autobiographical mood induction, participants (102 schoolteachers): (a) provided causal attributions for; and (b) formed impressions about four workplace episodes with good or bad outcomes, and involving either themselves, or a colleague. There was a significant affect-congruent influence: Happy mood produced more optimistic and lenient causal attributions while those in a negative mood were more critical. Mood also influenced some attributional biases, such as the actor/observer effect. These results are discussed in terms of the cognitive strategies that mediate mood effects on judgements, and implications for judgements about everyday social events, and for current affect/cognition theorising are considered.
Blind DS-CDMA Data and Channel Estimation with an Antenna Array : GSIC / MP / PSP Approach

This paper considers a blind DS-CDMA data and channel estimation algorithm using a uniform circular array. The channels are assumed to be sparse and static during a short packet transmission period. The channel estimates for different users yield the explicit estimates of the angle and time of arrivals, which are used for radiolocation. Our algorithm employs three approaches to solve the problem. The generalized successive interference (GSIC) algorithm is used to eliminate the multiple access interference. Matching pursuits (MP) is applied to enforce the channel sparsity constraint. Per survivor processing (PSP) is then employed to jointly estimate the channel parameters and data symbols. By successfully incorporating these, we present the GSIC/MP/PSP algorithm. Its performance is demonstrated by computer simulations and compared to the GSIC/MP algorithm which requires training sequences.
The Influence of Organizational Commitment on Omani Public Employees’ Work Performance

The purpose of this paper is to investigate the influence of organizational commitment on work performance in the context of Omani governmental organizations. Organizational commitment through its affective commitment, normative commitment, continuance commitment, motivates employees to work for the good of the organization. There are various studies that discuss organizational commitment, and work performance, yet it is hardly to see the research done on interrelationship between organizational commitment subscales and employees’ work performance specifically in Omani context. Thus, the paper is an attempt to fill this gap in the literature. Organizational commitment questionnaire was used to measure organizational commitment. Contextual and task performance were used to measure work performance. Quantitative survey method was applied and a sample of 335 middle-level managers of Omani public civil service organizations was selected to answer the instrument. Analysis of moment structures was utilized to analyze the collected data and test the research questions, and hypotheses. The techniques of data analysis comprised a confirmatory factor analysis, and a structural equation modeling analysis. The empirical results indicate that all organizational commitment subscales (affective, normative, and continuance) have a significant impact on work performance dimensions, contextual and task performance.
Everyday Entrepreneurship—A Call for Entrepreneurship Research to Embrace Entrepreneurial Diversity

This essay contrasts a perspective that places an excessive focus on technology businesses and growth with a view of entrepreneurship that embraces its heterogeneity. We challenge a taken–for–granted belief that only certain kinds of entrepreneurship might lead to wealth and job creation and additionally suggest that these two outcomes (wealth and job creation) need to be placed within a broader context of reasons, purposes, and values for why and how entrepreneurship emerges. We suggest that a wider and nondiscriminatory perspective on what constitutes entrepreneurship will lead to better theory and more insights that are relevant to the phenomenon.