Miracle-dz/UniFAR-FTUs huggingface dataset:
Static and dynamic properties of mid-size liquid n- alkanes, C12∼C400: a molecular dynamics simulation study

ABSTRACT In this paper, we have extended our previous study of the static and dynamic properties (self-diffusion coefficient Dself and friction coefficient ζ) of liquid n-alkane systems up C400 at several temperatures (∼2300 K) using molecular dynamics (MD) simulations in the canonical ensembles. For the small n-alkanes with n ≤ 120 (n: the chain length), the chains are clearly ⟨R2 ee⟩/6⟨R2 g⟩ ≥ 1 (1.06 ∼ 1.44), which leads to the conclusion that the liquid n-alkanes are far away from the ideal chain regime. But for the n-alkanes of n ≥ 160, the chains are ⟨R2 ee⟩/6⟨R2 g⟩ ≈ 1, indicating that they are Gaussian. It is found that the long chains of these n-alkanes at high temperatures show abnormalities in density and friction coefficient. We observed a clear transition in the power law dependence of n-alkane self-diffusion coefficient on the molecular weight (M) of n-alkane, Dself ∼ M−γ, occurs in the range C120∼C160 at temperatures of 318, and 618 K, corresponding to a crossover from the ‘oligomer’ to the ‘Rouse’ regime. The entanglement lengths (Ne) are calculated by the Z1 code and discussed shortly.
Decomposition of labor earnings: an analysis between metropolitan regions and non-metropolitan regions in Brazil

This paper aim at examining the dispersion of intra and inter-regional of principal labor earnings of the Metropolitan Regions (MR) and Non-Metropolitan Regions (NMR) of the States of Bahia, CearAi, Minas Gerais, ParAi, ParanAi, Pernambuco, Rio de Janeiro, Rio Grande do Sul and Sao Paulo, Brazil. It were applied the Chow structural test and decomposition of Oaxaca, and Heckman procedure. It was used data from the National Research by House Sample at 2006. The theoric approach was based on the Theory of Human Capital and Theory of Segmentation Labor Market. The results indicated that regional aspects and personal attributes of workers contributed for explaining the gap between labor earnings but were not homogeneous among States. Finally in the States that have highest Gross Domestic Product the regional effects were more important factors for explaining the differences for labor earnings among of MR and NMR.
A role of probiotic beverages in human health with special references to probiotic milk

The numerous perceived health benefits and the grow ing awareness about probiotics have caught the attention of the food industry. Food companies are increasingly manufacturing foods with incorporated probiotic bacteria, which fall under the new catego ry f foods called Functional Foods. Probiotic dair y products such as yogurts containing L. acidophilus and Bifidobacterium spp. constitute a significant amount among the commercially available probiotic f oods. Functional foods have been developed in most food categories and even by conservative estimates, th global market size already exceeds that for organic foods. In addition to providing consumers o ptions for improving their health and well-being, functional foods such as probiotics in dairy produc ts are an attractive market sector, providing new economic opportunities.
Analysis in Mobile Social Networks

Nowadays, mobile social networks are capable of promoting social networking benefits during physical meetings, in order to leverage interpersonal affinities not only among acquaintances, but also between strangers. Due to their foundation on automated sharing of personal data in the physical surroundings of the user, these networks are subject to crucial privacy threats. Privacy management systems must be capable of accurate selection of data disclosure according to human data sensitivity evaluation. Therefore, it is crucial to research and comprehend individual’s personal information disclosure decisions happening in ordinary human communication. Consequently, in this paper we provide insight into influential factors of human data disclosure decisions, by presenting and analyzing results of an empirical investigation comprising of two online surveys. We focus on the following influential factors: inquirer, purpose of disclosure, access & control of the disclosed information, location familiarity and current activity of the user. This research can serve as relevant input for the design of privacy management models in mobile social networks.
Co-Living or a “Sandpit” for Future Entrepreneurs. First Experience from Poland.

Nowadays, the Western world seems saturated with the myriad of enhancements for entrepreneurship development. Also, in Eastern European countries we observe a growing number of initiatives at different organizational levels, aiming at accompanying potential future entrepreneurs in their efforts. Meanwhile, there is one novelty, never before offered on the Polish market – the first co- -living space, launched in Gdansk. Therefore, this article aims at presenting the idea of 4COs (co-living, co-working, co-habitation, co-development) initiated by a group of young social entrepreneurs from the Tricity as “Clipster” at the end of 2015. For better understanding of the novelty of this venture on the Polish market, the author analyzes similar initiatives worldwide. This paper is also an attempt to assess the challenges and results of this initiative thanks to the qualitative research methods – structured interviews with its first participants and with its leaders. Additionally, the author suggests some improvements and possible future developments of this initiative.
Personality as a Predictor of Job Satisfaction: Study of the Relationship between Personality and Job Satisfaction amongst Workers in The Bahamas

The purpose of the study was to examine the relationship between personality and job satisfaction amongst workers in The Bahamas. A self-administered survey was conducted comprising of a representative sample of 384 employed individuals on New Providence. It was hypothesized that all four core self-evaluation traits – self-esteem, generalized self-efficacy, emotional stability, and internal locus of control –would be positively related to satisfaction with overall job, and 13 jobfacets. The study found that all traits were positively related to job satisfaction. However, just two traits (emotional stability and internal locusof control) were positively related to all job facets. Mean correlations were . 03 self-esteem, . 22 generalized self-efficacy, . 30 emotional stability, and . 34 internal locus of control. The correlation for the four traits combined was even more significant (r = .46). Traits, individually and collectively, explained a very small proportion of the variance in satisfaction. Overall, results suggested that whilst significant positive relationships existed, personality was not a substantial predictor of job satisfaction.
Biosynthesis of N-CAM and Effect of Tunicamycin and Phospholipase C

Qualitative and quantitative changes in neural cell adhesion molecule (N-CAM) protein and mRNA forms were measured during myogenesis in G8-1 and C2 cell lines. Indirect immunofluorescence assay showed that N-CAM was constitutively expressed by myoblasts in culture and that myotubes appeared to be stained more strongly. These changes were quantified using a dot blot assay. N-CAM levels increased almost 4-fold in G8-1 cells and 15-fold in C2 cells during myogenesis. The kinetics of accumulation of N-CAM were not coordinate with other muscle markers such as creatine kinase or acetylcholine receptor levels, since N-CAM accumulated significantly ahead of these markers. Immunoblotting showed that myogenesis was not associated with changes in the extent of sialylation of N-CAM. However, distinct changes in desialo forms were observed after neuraminidase treatment. Myogenesis was accompanied by increases in 125and 155-kD desialo forms with minor changes in 120and 145-kD forms. Biosynthetic labeling studies showed that myoblasts specifically expressed a transmembrane isoform of 145 kD that was phosphorylated and was down-regulated in myotubes. Pulse-chase analysis of myotubes showed that the 120-kD isoform and an isoform of 145 kD that co-migrated with, but was distinct from, the 145 kD transmembrane isoform of myoblasts were precursors of the 125and 155-kD isoforms, respectively, that accumulated in myotubes. The 125and 155-kD isoforms in myotubes are linked to the cell membrane via phosphatidylinositol linkage and can be released by phospholipase C. Indirect immunofluorescence analysis showed that phosphatidylinositol specific phospholipase C specifically released N-CAM from the myotube membrane generating N-CAM-free myotubes, while myoblasts were unaffected by this treatment. Three N-CAM mRNA species were observed in mouse muscle cell lines. Myoblasts were characterized by their expression of 6.7and 5.2-kb transcripts while myotubes express 5.2and 2.9-kb transcripts. Thus, myogenesis is qualitatively associated with a down regulation of the 6.7-kb transcript and an up regulation of the 5.2and 2.9-kb
Promising Directions for the Logistics Service Providers Development on the Russian Market in Times of Recession

Abstract The Russian market of logistics services suffered substantial losses during recent economic recession. Decrease in import from the EU and the USA, reduction of consumer spending within the country, increased borrowing costs led to sharp reduction in the growth rate of the investigated market value. Shortage of the modern infrastructure, fragmentation and imbalance of the Russian logistics market have contributed badly. This article focuses on identification of the promising strategic development directions for logistics service providers operating on the Russian market. On the basis of literature survey, the authors derive attractive client groups for 3PL operators, priority regions for geographical expansion as well as high-demand logistics and related services. The results of this survey could help logistics agents to define or clarify their market positioning and serve as a basis for further study of specific features in logistics outsourcing development in Russia.
Medical Expenditure Puzzle

What does your medical expenditure do to your health? Researchers often get significant negative sign on the relative coefficient in the reduced form health production regression. The puzzling result motivates this simple dynamic quantitative general equilibrium model to study the relationships between health status, medical expenditure and employment. The structural parameters are estimated by an indirect inference procedure. This paper finds that the simulated coefficient of medical expenditure in the health equation is negative even though in the health evolution equation of the structural model, medical expenditure only impacts the health in the positive way
Characterization of blinking dynamics in quantum dot ensembles using image correlation spectroscopy

Quantum dots (QDs) are being increasingly applied as luminescent labels in optical studies for biophysical and cell biological applications due to their unique spectroscopic properties. However, their fluorescence “blinking” characteristics that follow power law statistics make it difficult to use QDs in some quantitative biophysical applications. We present image correlation spectroscopy (ICS) in combination with total internal reflection fluorescence microscopy as a tool to characterize blinking dynamics in QDs. We show that the rate of decay of the ICS measured ensemble correlation function reflects variation in blinking dynamics and can be used to distinguish different blinking distribution regimes. To test and confirm our hypothesis, we also analyze image time series simulations of ensembles of point emitters with set blinking statistics. We show that optimization of the temporal sampling and the number of QDs sampled is essential for detecting changes in blinking dynamics with ICS. We propose that t.
Characterization of spirugenic iron oxide nanoparticles and their antibacterial activity against multidrug-resistant Helicobacter pylori

In the present study, spirugenic iron oxide nanoparticles (SIONs) were biosynthesized using a new simple, expeditious and benign approach which was achieved by combining ferric chloride with Spirulina platensis water extract. SIONs were inspected using UV spectroscopy on 290nm. The Transmission Electron Microscope (TEM) recorded a rod-shaped particle with an average width of 31.04 nm and length 137.51nm. X-Ray Diffractometer (XRD) showed a cubic spinel phase of a-Fe2O3 (maghemite). Furthermore, SIONs exhibited good antibacterial activity against multidrug-resistant Helicobacter pylori. Our study demonstrated that the Minimum Inhibitory Concentration (MIC) of SIONs against H. pylori was 3.2 µg/ml. TEM image showed the cell raptures of H. pylori indicating fragmented cell membrane and leakage of bacterial components in those culture treated by SIONs. MTT assay revealed that SIONs have no adverse effect on human epithelial cell line so it may be used safely as a natural product. The use of S. platensis as a nanofactory for the IONs synthesis could have a great role as a treatment of H. pylori infection in the future.
Partial Vertical Integration in Telecommunication and Media Markets in Israel

Partial vertical integration is common in many telecommunication and media markets in Israel. That is, there are many cases in which the supplier of an input holds a partial (often controlling) stake in the input’s customer (which we call the “distributor” for concreteness), or the distributor holds a partial ownership (often controlling) stake in the supplier.2 This is in contrast to full vertical integration, in which the supplier holds 100% of the distributor’s equity, or the distributor holds 100% of the supplier’s equity. For example, since early 2010, when it took over Bezeq, Eurocom Communications Ltd. which imports Nokia cellular phones to Israel has an indirect control over Pelephone, which is the third largest cellular operator in Israel and buys cellular phones from Eurocom for its customers. However, even though Eurocom now indirectly controls Pelephone, its stake in Pelephone is far below 100%. Similarly, Bezeq International Ltd., which is fully owned by Bezeq, currently holds a 67% stake in Walla! Communications Ltd., which operates the Walla internet portal. Walla, Bezeq International and Bezeq, are (partially) vertically integrated because Walla requires internet-access services that Bezeq International supplies, and it also requires access to the infrastructure that Bezeq supplies.
Detecção de Anormalidades em Sons Pulmonares Baseada em FFT e Máquinas de Vetores Suporte

Resumo A ausculta pulmonar é uma técnica difundida para fins de diagnóstico de doenças respiratórias. Porém, sua adequada aplicação é dependente da experiência do executor e de um ambiente adequado. Com o avanço das pesquisas na área de reconhecimento de padrões, diversos trabalhos, com a finalidade de detectar doenças pulmonares, têm implementado sistemas para o processamento de sons respiratórios e detecção de eventos com a finalidade de proporcionar diagnósticos mais precisos. Este trabalho apresenta uma abordagem de classificação destes sons pulmonares entre vesiculares e adventícios baseada em Transformada Rápida de Fourier (FFT) e Máquina de Vetores Suporte (SVM). Para extração de características dos sons utilizou-se as FFTs que então são avaliadas por meio de um Algoritmo Genético que trabalha em consonância com o melhor score de classificação da SVM com kernel linear. Foi possível a classificação dos sons pulmonares entre vesiculares e adventícios com 100% de acerto utilizando apenas 5 características. Palavras-chave: Máquina de vetores de suporte · Sons pulmonares · Transformada Rápida de Fourier
Supported Vocabulary Development from Context for Children Experiencing Reading Difficulties

The reading achievement gap is one of the most challenging and persistent problems that educators confront today. One vital area of concern is the learning of new vocabulary. It has been widely recognised that children with limited vocabularies find reading difficult, avoid reading, and learn fewer words in context. Many children with poor vocabularies will fall further behind their more able peers and develop more complex reading problems over time.
Low-Frequency Mechanical Spectroscopy of Lanthanum Cobaltite Based Mixed Conducting Oxides

The lanthanum cobaltite based perovskites have attracted much attention for their many important properties, such as high electrical and ionic conductivity [1,2], colossal magnetoresistance (CMR) [3,4] and spin-state transition [5]. Owing to their mixed conducting characteristics, these oxides are promising for the applications of high temperature oxygen separation membranes and cathodes in solid oxide fuel cells (SOFCs) [2,6]. When partially substituting A site lanthanum cations by other metal cations with lower valences such as Sr2+, the formation of oxygen vacancies and a change in the valence state of the B ions usually occur in order to maintain the charge neutrality [1]. Despite the number of publications on the oxygen permeability of the lanthanum cobaltite based perovskites, just a few concerned the mechanical properties of these materials. Recently, a few publications on the ferroelasticity and elastic hysteresis of these materials have appeared [7-14]. Generally, ferroelastic domain switching and phase transformation could be responsible for the nonelastic deformation [10]. Orlovskaya [10] recorded the dynamics of domains by an in-situ high temperature TEM study: the de-twinning during heating and the reappearance of domains during cooling. By using in-situ synchrotron X-ray diffraction, Vullum demonstrated that in La0.8Ca0. 2CoO3 ceramics the reorientation of ferroelastic domains were due to the uniaxial stress [12]. In the rhombohedral La0.6Sr0. 4FeO3 perovskite, a similar non-elastic deformation behavior in compression was observed, however, no domain/twin structure was found [15]. When the lanthanum cobaltite based ceramics are used as cathodes and membranes, cracking caused by thermal cycling through the structural transformations could seriously damage the membranes. A basic understanding of the origin of ferroelastic properties is not currently available for the lanthanum cobaltite and other mixed conductors. The internal friction technique [16-21] has been proved as a very sensitive tool to investigate microscopic relaxation processes and phase transitions in perovskites [22-26]. In this study, we present the results of mechanical loss (internal friction) measurements on La1‒xSrxCo(Fe)O3‒δ (0≤ x ≤0.6) ceramics. In addition, resistivity and magnetization measurements are carried out to clarify the nature of internal friction peaks.
Naturally Derived Melanin Nanoparticle Composites with High Electrical Conductivity and Biodegradability

The development of electronic devices from naturally derived materials is of enormous scientific interest. Melanin, a dark protective pigment ubiquitous in living creatures, may be particularly valuable because of its ability to conduct charges both electronically and ionically. However, device applications are severely hindered by its relatively poor electrical properties. Here, the facile preparation of conductive melanin composites is reported in which melanin nanoparticles (MNPs), directly extracted from squid inks, form electrically continuous junctions by tight clustering in a poly(vinyl alcohol) (PVA) matrix. Prepared as freestanding films and patterned microstructures by a series of precipitation, dry casting, and post‐thermal annealing steps, the percolated composites show electrical conductivities as high as 1.17 ± 0.13 S cm−1 at room temperature, which is the best performance yet obtained with biologically‐derived nanoparticles. Furthermore, the biodegradability of the MNP/PVA composites is confirmed through appetitive ingestion by Zophobas morios larvae (superworms). This discovery for preparing versatile biocomposites suggests new opportunities in functional material selections for the emerging applications of implantable, edible, green bioelectronics.
Bilingualism and Creative Abilities in Early Childhood

The present study was motivated by a scarcity of knowledge about the impact of early bilingualism on the development of general creativity and mathematical creativity. Two groups of bilingual and monolingual preschoolers (mean age = 60.9 months, SD= 3.1) from the same monolingual kindergarten participated in this study: 15 Russian/Hebrew balanced bilinguals and 15 native Hebrew-speaking monolinguals. All children were administered the Figural Form A ( Thinking Creatively with Pictures ) from the Torrance Tests of Creative Thinking, the Pictorial Multiple Solution Task assessing general creativity, and the Creating Equal Number task measuring mathematical creativity. Bilingual children showed higher creative ability than their monolingual peers. It seems, however, that bilingualism affects various domains of creative ability differently. Consistent with findings of an earlier study (M. Leikin, 2013) the results demonstrate that relationships between creativity components and bilingualism are task dependent, and when differences between bilingual and monolingual children are revealed, they are in favor of bilinguals. In other words, advantages in creative ability in bilinguals are specific rather than general.
Weather and stock markets: empirical evidence from Portugal

Multiple psychological studies support a relationship between weather and the mood of individuals. Furthermore, mood seems to influence the decision making process of individuals namely when those decisions are risky. Therefore, weather may have an indirect impact on market returns. We review the current evidence and investigate the relationship between four weather variables (Rain, Temperature, Sunshine and Wind speed) and the returns of a Portuguese stock market index between January 2000 and December 2009. In this research, based on “bin tests” and regression analysis, we detect the influence of temperature, especially, low temperatures, on the stock market (low temperatures being associated with higher returns) but we cannot rule out the possibility that weather effects are being confounded with simpler calendar patterns.
Artificial neural network based classification technique for minutiae verification

The theory behind the fingerprint verification based on minutiae matching, was in detail studied. The performance of the developed system was evaluated on database with 2 fingerprints from 20 different people. The test showed that the system and algorithm is fully capable of distinguishing the related fingerprints apart from the non-related fingerprints. The system has proved to be robust towards translation, rotation and/or missing minutiae between the matched fingerprints. Future work can be improved by applying the fingerprint classification and recognition for more damaged and noisy fingerprint image database. System performance could be determined for database of more than 1000 images.