Miracle-dz/UniFAR-FTUs huggingface dataset:
Modelling Correlation in Carbon and Energy Markets

The paper examines correlations between daily returns of month-ahead baseload electricity, fuel input and carbon emission allowance (EU-ETS) prices for Great Britain. The perspective of a CCGT plant operator is assumed, producing baseload electricity with natural gas and emission allowances and selling output forward in the month-ahead market. Price correlation between power, natural gas and emission allowances as well as their dynamic behaviour is essential for the extent to which cashflows from CCGT plants are self-hedged. Switching between input fuels with different carbon intensities is taken as the fundamental driver of this correlation. Relative marginal power generation costs are used to construct carbon price regimes during which no switching takes place. The regimes are then used as explanatory variables in a dynamic conditional correlation model. Using daily observations of month-ahead prices from April 2005 to August 2010, the results suggest that extreme weather, high commodity market volatility and seasons have no effect on correlation. However, there is evidence of significant price decoupling during periods of extreme relative carbon, coal and natural gas prices.
Experimental and numerical studies on low velocity impacts detection and damage identification in metal and composite structures using ultrasonic waves propagation (Lamb waves)

In this thesis a theoretical base required for the development of a reliable structural health monitoring system based on ultrasonic guided waves is considered. An exact theory is used for relatively rapid calculation of the PZT driven surface motion in a plate recorded in an ultrasonic experiment. The theoretical results are compared with those obtained from an explicit finite element code for their mutual verification, showing excellent agreement. Important characteristics of the ultrasonic signals recorded by the PZT patches in an experiment are carefully extracted and modeled to identify the behavior of the PZT patches used in the experiment. Some applications are presented mainly concerning composite plates subjected to low velocity impact damage or more general hidden defects. Finally an application to the beam forming technique is presented.
Stock repurchases with legal restrictions. Evidence from Spain

This paper analyses the consequences of legal restrictions on the volume of shares firms can repurchase. Results suggest that the imposition of a limit on the volume of common stock favours the use of open market repurchases (OMRs) compared to other methods of repurchase such as tender offer repurchases (TORs) and Dutch auctions (DAs). The positive share abnormal returns around both announcements of open market buybacks and sellbacks in the full sample suggest that they are basically used to change the ownership structure of the firm in a consistent way with the convergence of interest hypothesis. The positive abnormal stock returns around open market repurchases, which are significantly different to the negative ones around sellbacks, when there are no changes in ownership structure also indicates the existence of a signalling and free cash flow effects.
Communication and Comovement: Evidence from Online Stock Forums

We study investor communication and stock comovement using a novel dataset for an active online stock forum in China. We find substantial comovement among the returns of a stock and its “related stocks,” that are frequently discussed in the sub-forum dedicated to the given stock. Comovement is greater when related stocks are more frequently discussed. Further, the effect of frequent communication on comovement is stronger for stocks associated with higher information asymmetry. We also use a forum outage event as a quasi-natural experiment to establish causality. Our findings highlight the impact of investor communication on stock return comovement.
Frailty and Health in a Slovenian Sample THESIS

ii Acknowledgments. iii Vita . iv List of Tables . vi List of Figures.vii Chapter 1: Introduction.1 Chapter 2: Materials and Methods.12 Chapter 3: Results.19 Chapter 4: Discussion and Conclusion.25 References . 29
A Mixed-Methods Study to Explore Stage of Readiness and Intention of Micro and Small Enterprises to Adopt Mobile Money in Indonesia

The objectives of this study are to understand the stage of readiness of micro and small entrepreneurs to adopt mobile money service, and to explore factors that influence mobile money acceptance in an Indonesia setting. Micro and small enterprises were expected to modify people behaviour, from cash oriented to digital. The authors implemented a mixed-methods study with the qualitative approach was in the first step. The qualitative data were collected in an industrial cluster of traditional batik textile in West Java Province, Indonesia. This first stage of study focussed on current financial transaction methods, attitude on mobile money, and intention to adopt mobile money. Thirty-one entrepreneurs participated in face-to-face interviews. Findings of the qualitative study were illustrated into the proposed model to be examined in the quantitative study. Indicators for the instrument were also taken and adapted from those findings. Furthermore, the quantitative study was conducted in Jakarta, attracting 181 micro and small entrepreneurs with various backgrounds of industries. The quantitative data were analysed using exploratory and confirmatory factor analyses. Four of eleven hypotheses were accepted. This study carried out findings that to predict intention in adopting mobile money, micro and small entrepreneurs were influenced by attitude and social influence whereas attitude was influenced by perceived credibility and perceived and usefulness.
Collapse of a cylinder of Bingham fluid

The ``Slump Test" is a simple method of measuring the yield stress of certain materials such as concrete and concentrated suspensions. In this procedure a cylindrical test sample is allowed to deform under its own weight, and the yield stress is obtained from the change in height (slump height) of the sample using an empirical calibration curve. In this paper the slump height/yield stress relationship of the material, considered as a Bingham fluid, is investigated numerically using a finite volume procedure applied to a homogeneous two-fluid (liquid-air) model representing flow of an equivalent single phase with variable properties. Advection is approximated using a van Leer flux limiter to reduce interface smearing without the occurrence of spurious oscillations. Predictions are in reasonable agreement with published experimental data for high yield stress materials, but are less satisfactory when the yield stress is low.
TORNADO concept and realisation of a rotor for small VAWTs

The concept of a three-tier configuration for a vertical axis rotor was successfully developed into a experimental model. The rotor assembly is divided into three tiers with three straight blades in each tier. The three-tiers are shifted by an angle of 40 0 generating a full helical flow field inside the rotor. Thereby the new configuration has some different mechanism of torque generation as other Darrieus rotors. The three-tier configuration facilitates the operation by enabling the turbine to self-start at wind velocity as low as 2 m/s with good performance and a smoother driving torque. At the same time the design couples an esthetic appearance with low noise level.
Comparison of the Structure and Properties of Wool and Cashmere Fibres under Potassium Permanganate Treatment

In this study, the weight loss and tensile property of wool fibers and cashmere fibers before and after various potassium permanganate solution treatment were investigated. The scale morphology and crystallization index of the original and treated fibers were analysed with scanning electron microscopy and X-ray diffraction analysis. The experimental results showed that the weight loss of wool fibers is more than that of cashmere fibers under low potassium permanganate content treatment, but is less than that of cashmere fibers under high potassium permanganate content treatment. The force loss of cashmere fibers increased linearly with an increase in potassium permanganate content. The scales of cashmere fiber were damaged at a potassium permanganate content of 9%, but the scales of wool fiber were clear. The relative crystallisation index of treated wool is twice as that of treated cashmere at a potassium permanganate content of 9%.
Pressure Insoles for Gait and Balance Estimation

Clinical therapy following stroke aims at tackling induced impairment in motor ability, gait, and balance. Once transferred home, remote monitoring of subject’s performance is necessary for objective evaluation, improving mobility and preventing maladaptation. This requires a wearable and unobtrusive system capable of estimating ambulatory gait and dynamic balance measures, such as Extrapolated Centre of Mass (XCoM) and Dynamic Stability Margin (DSM). Currently, ForceShoes™ (Xsens Technologies B.V., The Netherlands) had been developed for this purpose. However, it is bulky and conspicuous. As a lightweight and inconspicuous alternative, pressure insoles (medilogic® insoles, T&T medilogic Medizintechnik GmbH, Germany) coupled with IMUs, are investigated for objective quantification of gait and dynamic balance measures. Although, to obtain such measures, 3D forces and moments are required. Linear regression models were used to model 3D forces/moments from the 1D plantar pressures measured from pressure insoles. The predicted forces and moments were used for estimation of XCoM and DSM. These parameters were compared with the estimations done by the forces and moments from the ForceShoes™. High correlation and low differences between the estimations from predicted and measured forces and moments show that pressure insoles can indeed be used as an wearable alternative.
A Novel Hybrid Framework for Optimal Feature Selection and Classification of Human Activity Recognition

In today’s world individuals health concern has improved a lot with the help of advancement in the technology. To monitor an age old person or a person with disability, now-a-days modern wearable smartphone devices are available in the market which are equipped with good collection of built in sensors that can be used for Human Activity Recognition (HAR). These type of devices generate lot of data with many number of features. When this data is used for classification, the classifier may be over trained or will definitely give high error rate. Hence, in this paper, we propose a two hybrid frameworks which gives us optimal number of features that can be used with different classifiers to recognize the Human Activity accurately. It is observed from our experiments that SVM was able to classify the HAR accurately.
Developing a shorter version of the Estonian Smartphone Addiction Proneness Scale (E-SAPS18)

The aim of this paper is to develop a shorter version of the Estonian Smartphone Addiction Proneness Scale based on previous works (e.g., Ching et al., 2015; Kwon, Lee, et al., 2013; Rozgonjuk, Rosenvald, & Taht, 2016). Seven hundred and sixty-seven people participated in the study (M age = 26.10 ± 6.73 years; 22% male), for which they completed the Smartphone Addiction Scale (E-SAS-33; Rozgonjuk, Rosenvald, & Taht, 2016), the Estonian Internet Addiction Test (E-IAT; based on Young, 1998), and the Visual Analogue Scale (VAS; Kwon, Lee, et al., 2013). Exploratory factor analysis (maximum likelihood with geomin rotation) and confirmatory factor analysis (parameter estimation: maximum likelihood), an internal-consistency test, t- tests for mean comparisons, correlation analysis and experts’ opinions were used to shorten the E-SAS-33 and validate a new version of the scale. The results of the analyses showed that the 18-item test with five subscales (“tolerance”, “positive anticipation”, “cyberspace-oriented relationships”, “withdrawal”, and “physical symptoms” ) has sound psychometric properties and that the content of the subscales is similar to the original. Among the results, statistically significant differences in E-SAPS18 scores were found in gender, age, level of education, smartphone main use and self-reported addiction. Furthermore, correlates suggest that smartphone addiction, social media use, and Internet addiction might share a similar underlying mechanism.
A STUDY ON EFFECT OF BODY MASS INDEX ON MID EXPIRATORY FLOW RATE AMONG HEALTHY YOUNG INDIVIDUALS OF GUWAHATI CITY

AIMS AND OBJECTIVES: To study the effect of Body Mass Index on Mid Expiratory Flow Rate among healthy young individuals. MATERIALS AND METHODS: A Cross sectional study was carried out among hundred healthy young individuals including equal numbers of male and female subjects of 18-24 years of age of Guwahati City. Body Mass Index was estimated by using Quetlet’s Index. Obesity was classified according to WHO classification of BMI for Asia-Pacific region Mid Expiratory Flow Rate was measured by MEDSPIROR (Electronic turbine type Expirograph) in the Department of Physiology, Gauhati Medical College, Guwahati. Statistical analysis was carried out by calculating the Mean, Standard deviation and Pearson’s Correlation Coefficient for relevant groups as needed and ‘p’ values for inter group comparison were calculated by using ANOVA in SPSS-22. RESULTS: The Mid Expiratory Flow Rate in female subjects was found to be significantly lower than in male subjects in corresponding groups (p<0.001). The MEF values in males were 338.80±16.86, 326.84±24.90 and 326.32±18.46 in normal BMI group, preobese and Class I obese group respectively. In female subjects, the MEF values were 272.00±26.53, 258.15±19.12 and 232.79±13.33 in normal BMI group, preobese and Class I obese group respectively. Also, there was a negative correlation between MEF and BMI in both male and female subjects and both were found to be statistically significant. In male subjects, the decrease in MEF was found to be significant between normal BMI group and preobese group as well as between normal BMI and Class I obese group, but it was not significant between preobese and Class I obese group. In female subjects, the decrease in MEF was significant between normal BMI group and Class I obese group as well as between preobese and Class I obese group, but it was not significant between normal BMI group and preobese group. Moreover, no individual was found to be underweight (BMI <18.5 kg/m2) and Class II obese (BMI ≥ 30kg/m2). CONCLUSION: There was a negative correlation found between Mid Expiratory Flow Rate and Body Mass Index in both male and female subjects with significantly lower values of MEFR in females than in males.
Prox-mappings associated with a pair of Legendre conjugate functions

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Extracellular Vesicles (EVs) ; Basic Science, Clinical Relevance and Applications

All types of cells of eukaryotic organisms produce and release small Nano-vesicles into their extracellular environment. Early studies have described these vesicles as “garbage bags” only to remove obsolete cellular molecules. Valadi and coworkers, in 2007, was the first who discovered the capability of circulating EVs to horizontally transfer functioning gene information between cells. These extra cellular vesicles express components responsible for angiogenesis promotion, stromal remodeling, chemo-resistance, genetic exchange and signaling pathway activation through growth factor/receptor transfer. Extracellular vesicles (EVs) represent an important mode of intercellular communication by serving as vehicles for transfer between cells of membrane and cytosolic proteins, lipids, signaling proteins and RNAs. They contribute to physiology and pathology, and they have a myriad of potential clinical applications in health and disease. Moreover, vesicles can pass the blood-brain barrier and may perhaps even be considered as naturally occurring liposomes. These cell-derived extracellular vesicles not only to represent a central mediator of the disease microenvironment, but their presence in the peripheral circulation may serve as a surrogate for disease biopsies, enabling real-time diagnosis and disease monitoring. In this review, we’ll be addressing the characteristics of different types and the clinical relevance of these extracellular EVs and their potentials as diagnostic markers as well as defining therapeutic options.
The Valency Theory: The Human Bond From A New Psychoanalytic Perspective

The present article deals with what has always and continue to intrigue thinkers, namely the bond linking humans to each other. The purpose here is to discuss the different attempts to shed light on this bond from a psychoanalytical perspective or vertex in Bion's terminology. The term bond or bonding comes from the 12th century English word band which means something that binds, ties, or restrains. According to Meriam-Webester, this term has been applied to describe interpersonal human relationship since 1976. However, much earlier than the origin of the term, the Greek philosopher Plato, in the 4th century BC, argued that the bonds of human society are directed by love. Moreover, discribing strong marriage bond, Goethe (1963), in his famous novella Elective Affinities, compared it to the bond between the particles of quicksilver which find a unity together through the process of chemical affinity. In other words, Goethe argued that humans passionately bound resemble reactive substances in a chemical equation. Therefore, Goethe's work novella was considered as a treatise on the chemistry of Hafsi:The Valency Theory 105
Gheorghe Asachi ” Technical University of Iasi , Romania VOLATILES IN T Ă MÂIOAS Ă ROMÂNEASC Ă VIA SUPERCRITICAL FLUID EXTRACTION ( SFE ) ANALYSIS

Wine analysis is a complex process, requiring multiple techniques and very in-depth multidisciplinary knowledge. Moreover, when talking about sensorial potent wines, like Muscat or Tămâioasă Românească (from aromatic Romanian grape variety), the identification and characterization of its volatile compounds is achieved through different methods, most calling for powerful solvents to separate the aroma substances. Supercritical fluid extraction is a powerful technique with great promise in organic analytical chemistry. To date, little has been published on the use of SFE in the analysis of wine aromas. The main objective of this study is the analysis of volatiles in samples of Tămâioasă românească wines through a custom-made SFE method. The wine variants have been obtained by applying the general technological processes for aromatic wines, using specific oenological products. An in-house SFE analysis method was developed and applied, the obtained extracts were then analyzed by gas chromatography coupled to mass spectrometry (GC-MS) to identify the captured compounds. Regarding the total number of findings in respect to volatiles, the highest concentrations occur with low molecular weight alcohols, esters and acetic acid. Besides, there were also identified other volatile compounds, such as terpenoides and phenols. These specific compounds originate from the grape variety and give the “varietal” character to the wines.
About the certification of railway rails

When the compliance with the European Code of some rail steel has to be verified, the need of carrying out the experimental activities in accordance with several testing Standards forces the operator both to solve the problems related to the choice of a suitable testing practice and often to interpret subjectively Standards guidelines. This does not facilitate the comparability and/or the quality of the results produced by several laboratories. With reference to a series of fatigue, fracture toughness and fatigue crack growth tests carried out by the authors on specimens extracted from rails, the main lacks in the current standards, related to both the choice of the control parameters and the testing procedures, are pointed out. Regarding the crack growth testing, several procedures to compute the crack growth rates to be compared with the limits prescribed by the Code are proposed. These procedures have been applied to a data set produced during the aforementioned testing activity, in order to highlight, by comparison of the results obtained by them, the significant differences in the crack growth rate estimates and the magnitude of the errors that can be done due to the lacks in the standard practices currently adopted.
Can bacterivory sustain survival and growth in early juveniles of the bryozoan Bugula neritina, the polychaete Hydroides elegans and the barnacle Balanus amphitrite?

Since phytoplankton abundance can constitute a highly unpredictable source of food for suspension feeders, we exarnined whether early juvenile Bugula neritina, Hydroides elegans, and Balanus amphitrite can use bacteria to achieve extended survival or growth when phytoplankton is scarce. At bacterial concentrations of -2 to 3.5 X 106 cells ml-', within the Tange of values observed in the field, early juvenile B. neritina and H. elegans were effective bactenvores, obtaining enough energy and nutrients from bacteria to sustain survival and growth. When provided with bacterial concentrations of -3 X 106 cells rnl-I, early juvenile B. neritina grew as rapidly as individuals provided with abundant phytoplankton, and completed the development of a second zooid slightly earlier. At bactenal concentrations of -1 X 106 ceils ml-', however, early juvenile B. neritina fared only siightly better in terms of growth and survival than in controls where bacterial concentrations were kept to a rninimum. Growth of early juvenile H. elegans at -2 X 106 bacteria ml-' was sigmficantly faster than in the controls, but was nevertheless slower than in the phytoplankton treatment. Finally, Balanus amphitn'te did not obtain any detectable benefit frorn bacteria, despite being provided with bacterial concentrations of -9 X 106 cells rnl-I, well in excess of values observed in the field. These results indicate that early juveniles of some species are effective at using bacteria as an alternative food source, and may use bactena as a food Supplement or even as a sole source of particulate matter. if necessary, to Support survival and growth. Starvation may therefore be a minor natural cause of mortaiity, if a cause at ail, in early juvenile H. elegans and B. neritißa which can use bacteria and possibly other alternative food sources when phytoplankton is scarce.
Analisis CART (Classification and Regression Trees) Pada Faktor-Faktor

Pola perkembangan kota dan urbanisasi yang pesat di kota–kota besar merupakan pertanda terjadinya kemajuan dalam pembangunan. Namun, kenyataannya urbanisasi seringkali melahirkan berbagai masalah, mulai dari masalah sosial, transportasi, hingga kriminalitas. Hasil kajian BAPPENAS menunjukkan bahwa proyeksi tingkat urbanisasi penduduk secara nasional pada tahun 2025 mencapai 68%. Proyeksi tingkat urbanisasi Jawa Timur telah mencapai angka 73,4% pada tahun 2025, hal ini menunjukkan bahwa persentase penduduk perkotaan di Jawa Timur tergolong tinggi. Penelitian ini dilakukan untuk mendeskripsikan karakteristik kepala rumah tangga Jawa Timur yang melakukan urbanisasi dan mendapatkan faktor yang mempengaruhi urbanisasi. Hasil klasifikasi dengan pendekatan CART memberikan informasi bahwa faktor-faktor yang mempengaruhi urbanisasi adalah jarak lokasi pindah, jumlah anggota rumah tangga yang ikut pindah, pendidikan tertinggi, lama waktu pindah, alasan utama pindah.