Miracle-dz/UniFAR-FTUs huggingface dataset:
A Real-Time Authentication Method Based on Cursor-hidden Scene

Identity theft, as a common insider attack method, is difficult to detect because it is hard to distinguish the legal user from the masquerader with a stolen legal identity. Compared with traditional identity authentication method such as password or fingerprint, behavior biometrics based on HCI (Human-Computer Interaction) has been more useful and effective in real-time authentication. However, existed approaches either require longer authentication time or are designed for special scenario. In this paper, we propose a realtime authentication approach based on mouse-hidden scene to detect identify theft attack. When operations of the suspicious masquerader are detected, the cursor is hidden deliberately. Under the scene, we assume that mouse operators become anxious and show some unique and instinct mouse movement operations. Based on the movement traces, behavioral model is generated and used for detecting the suspicious masquerader. The experiments show the approach can achieve 2.6 percent of FAR and 3.3 percent of FRR while authentication time consumed is acceptable in practice.
Variations in soil properties, species composition, diversity and biomass of herbaceous species due to ruminant dung residue in a seasonally dry tropical environment of India

Ruminants directly or indirectly influence nutrient cycling and vegetation structure in grassland ecosystems. We assessed the impact of natural cattle dung deposition on soil attributes and the resulting effects on species composition, species diversity and biomass of herbaceous vegetation in a natural grassland in the seasonally dry tropical environment of Banaras Hindu University, India. For this 72 plots of 1 × 1 m [12 locations × 2 treatments (dung residue and control) × 3 replicates] were selected in January 2013 and soil and vegetation samples collected. A total of 74 species belonging to 66 genera and 25 families were recorded. Principal Component Analysis (PCA) ordination revealed that the dung residue (DP) and control (CP) plots were distinctly different in terms of soil attributes and species composition. The k -dominance plot showed greater species diversity in DPs than CPs, with higher soil nutrients and moisture and lower soil pH in DPs than CPs. Similarly, DPs showed more herbaceous species and greater biomass than CPs. This trend can be explained by the positive responses of forbs, erect plants, annuals, large-statured, non-native and non-leguminous species to dung residue, while increased biomass can be partly due to cattle preferentially not grazing areas adjacent to a dung pat. Overall, the study showed that deposition of dung during grazing by cattle stimulates growth of pasture species and increases species diversity. Therefore cattle dung could be used as a sustainable alternative to chemical fertilizers to manage soil pH, species composition and diversity, and forage production in the seasonally dry tropical grasslands of India, which are nutrient- and moisture-limited. Keywords: Animal manure, herbaceous vegetation, plant functional attributes, soil pH, species change. DOI: 10.17138/TGFT(3)112-128
Pufferbench: Evaluating and Optimizing Malleability of Distributed Storage

Malleability is the property of an application to be dynamically rescaled at run time. It requires the possibility to dynamically add or remove resources to the infrastructure without interruption. Yet, many Big Data applications cannot benefit from their inherent malleability, since their colocated distributed storage system is not malleable in practice. Commissioning or decommissioning storage nodes is generally assumed to be slow, as such operations have typically been designed for maintenance only. New technologies, however, enable faster data transfers. Still, evaluating the performance of rescaling operations on a given platform is a challenge in itself: no tool currently exists for this purpose. We introduce Pufferbench, a benchmark for evaluating how fast one can scale up and down a distributed storage system on a given infrastructure and, thereby, how viably can one implement storage malleability on it. Besides, it can serve to quickly prototype and evaluate mechanisms for malleability in existing distributed storage systems. We validate Pufferbench against theoretical lower bounds for commission and decommission: it can achieve performance within 16% of them. We use Pufferbench to evaluate in practice these operations in HDFS: commission in HDFS could be accelerated by as much as 14 times! Our results show that: (1) the lower bounds for commission and decommission times we previously established are sound and can be approached in practice; (2) HDFS could handle these operations much more efficiently; most importantly, (3) malleability in distributed storage systems is viable and should be further leveraged for Big Data applications.
An Empirical Analysis of the Relationship between Government External Borrowings and Economic Growth in Nigeria

The study examines whether or not a relationship exists between external debt and economic growth in Nigeria. Time series data from 1981-2012 were fitted into the regression equation using various econometric techniques such as Augmented Dickey Fuller (ADF) test and Ordinary Least Square Regression. The result of the OLS model showed that external debt has a fairly significant positive relationship with the gross domestic product. This result is consistent with a number of earlier studies reviewed in the literature that found external debt and gross domestic product to have a positive relationship.
Evidence of Critical Thinking in High School Humanities Classrooms

Critical thinking skills (CTS) are a group of higher order thinking abilities related with complex processes of learning like contextualization or problem solving. This exploratory research study identified whether critical thinking skills were present in high school humanities classrooms. The study was carried out in a private school in Bogota, Colombia through qualitative methods and content analysis. The study sought to identify CTS in students’ actual learning processes. Data collection techniques included classroom observations, document analysis and focus groups to identify skills in teachers and eighth grade students from a humanities-focused high school curriculum. Results demonstrated the presence of argumentation in written and oral classroom material. Analysis was also evidenced through questioning, inferencing and other exercises. Motivation was also an observable element, reflected in explicit expressions and gestures, and in the use of extra material in the classes.
A Bayesian parameter estimation approach to pulsar time-of-arrival analysis

The increasing sensitivities of pulsar timing arrays to ultra-low frequency (nHz) gravitational waves promise to achieve direct gravitational wave (GW) detection within the next 5–10 years. While there are many parallel efforts being made in the improvement of telescope sensitivity, the detection of stable millisecond pulsars and the improvement of the timing software, there are reasons to believe that the methods used to accurately determine the time-of-arrival (TOA) of pulses from radio pulsars can be improved upon. More specifically, the determination of the uncertainties on these TOAs, which strongly affect the ability to detect GWs through pulsar timing, may be unreliable. We propose two Bayesian methods for the generation of pulsar TOAs starting from pulsar ‘search-mode’ data and pre-folded data. These methods are applied to simulated toy-model examples and in this initial work we focus on the issue of uncertainties in the folding period. The final results of our analysis are expressed in the form of posterior probability distributions on the signal parameters (including the TOA) from a single observation.
Performance-to-Goal in Executive Compensation Contracts

Theory and field studies have suggested that performance goals in executive compensation contracts play a pivotal role in inducing CEO’s effort toward organizational goals. I show empirical evidence consistent with the prior literature by investigating relationship between performance goal achievement and executive compensation. First, CEOs’ major economic incentives are placed on achieving their own performance goals rather than analyst earnings forecast, past earnings level, and zero-earnings target. Performance goal achievement has greater impact on the size of annual non-equity incentive compensation than other key determinants of CEO pay have, which include firm size, firm-wide performance as opposed to CEO’s individual performance, firm industry, CEO characteristics, and corporate governance score. Second, I find that typical relationship between performance goal achievement and CEO
Phonology or not phonology? That is the question (in intonation)

The paper would like to challenge the basic tenet of Autosegmental Theory of Intonation, i.e. that in non-tonal languages it is possible to deal with intonation in phonological terms. Therefore, the traditional criteria normally adopted in phonological tradition (discreteness and distinctiveness) are tested. The empirical evidence employed is taken from some Italian varieties. On the ground of the acoustic analysis, a crucial role is given to the new parameter of scaling in Pitch Accents. The phonology of intonation is thus to be found not at the level of grammar, but rather at the sociolinguistic level, as pitch is a socio-phonetic marker for the discrimination among the different varieties of a language.
The Impact of Supportive Work Environment, Trust, and Self-Efficacy on Organizational Learning and Its Effectiveness: A Stimulus-Organism Response Approach

This study examines the relationship among management and peer support, trust, self-efficacy, organizational learning, and organizational effectiveness. Within organization, supportive work environment plays a significant role in the establishment of employees’ learning process. The causal design is used to analyze the impact of supportive work environment on employees’ psychological influence (i.e. trust and self-efficacy) and organizational learning. The nature of the study is cross-sectional with convenience sampling technique. Data is collected from employees of 400 banks located at twin cities i.e. Islamabad and Rawalpindi through self-administered questionnaire. Data was analyzed through Structural Equation Modeling (SEM) through maximum likelihood. Finding indicates that top-management and co-worker support (i.e. stimulus) had significant positive impact on employee’s trust and self-efficacy (i.e. organism) and organism acts as mediator between stimulus and response. Moreover, employees’ trust (cognitive/emotional), and self-efficacy had significant positive impact on organizational learning and organizational effectiveness (i.e. response). Bank managers, industry associations, training providers, and research institutions may use findings to bring improvements in organizational learning mechanisms and employee behaviors to enhance the overall effectiveness of the organizations.
Predictive capacity of indicators of adiposity in the metabolic syndrome in elderly individuals

1 Universidade Federal de Viçosa, Departamento de Nutrição e Saúde, Programa de Pós-Graduação em Ciência da Nutrição. Av. PH Rolfs, s/n. , CCB-II, 36570-000, Viçosa, MG, Brasil. Correspondência para/Correspondence to: KBD MORAIS. E-mail: <keila_bacelar@yahoo.com. br>. 2 Universidade Federal de Minas Gerais, Escola de Enfermagem, Departamento de Nutrição, Programa de Pós-Graduação em Nutrição e Saúde. Belo Horizonte, MG, Brasil. Article based on the master’s thesis of KBD MORAIS, entitled “Capacidade preditiva de indicadores de adiposidade sobre o risco cardiometabólico em idosos de Viçosa (MG)”. Universidade Federal de Viçosa; 2014. Support: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior.
People or Trust in Building Commitment to Change?

The success of organizational change lies on people, in this regard on employee’s commitment to change. On the other hand, there are many variables that can influence the success of organizational change, such as the content of the change, the process of the change, individual characteristics, leadership, external environment and organizational context. The objective of this study is to identify the major contributor to people’s commitment to change, namely psychological empowerment (individual characteristics), and organizational trust (organizational context). The study was conducted at state owned organizations with 539 respondents. Data was collected using Commitment to Change Inventory, Psychological Empowerment, and Organizational trust Inventory. The data were analyzed using Multiple Regression and Structural Equation Model (SEM). The results of the study showed that both Psychological Empowerment and Organizational Trust have positive and significant correlation and contribution to Commitment to Change. The study also showed that both Organizational Trust and Psychological Empowerment have higher impact to affective commitment to change compares to other dimensions of commitment to change. The implications of the study can be used for organizational change practitioner, to create trustworthy organizational climate, and to develop Psychological Empowerment, in order to create high commitment to change.
Efficiency Improvements of Antenna Optimization Using Orthogonal Fractional Experiments

This paper presents an extremely efficient method for antenna design and optimization. Traditionally, antenna optimization relies on nature-inspired heuristic algorithms, which are time-consuming due to their blind-search nature. In contrast, design of experiments (DOE) uses a completely different framework from heuristic algorithms, reducing the design cycle by formulating the surrogates of a design problem. However, the number of required simulations grows exponentially if a full factorial design is used. In this paper, a much more efficient technique is presented to achieve substantial time savings. By using orthogonal fractional experiments, only a small subset of the full factorial design is required, yet the resultant response surface models are still effective. The capability of orthogonal fractional experiments is demonstrated through three examples, including two tag antennas for radio-frequency identification (RFID) applications and one internal antenna for long-term-evolution (LTE) handheld devices. In these examples, orthogonal fractional experiments greatly improve the efficiency of DOE, thereby facilitating the antenna design with less simulation runs.
Development of a Combined Trifluoroacetic Acid Hydrolysis and HPLC-ELSD Method to Identify and Quantify Inulin Recovered from Jerusalem artichoke Assisted by Ultrasound Extraction

Over the last years, inulin, a fructan mixture consisting of oligosaccharides and polysaccharides, has attracted more and more attention from both food industry and researchers, due to its unique functional properties as a natural resource. Therefore, there is an increased interest in the extraction and quantification of inulin for its valorization from inulin rich plants, wastes and by-products. In this work, ultrasonic treatment was applied for inulin extraction, observing a great impact of extraction temperature and ultrasonic power on the inulin content in the obtained extracts. A combined process including trifluoroacetic acid (TFA)-assisted hydrolysis and analysis with high performance liquid chromatography equipped with evaporative light scattering detector (HPLC-ELSD) was developed to quantify inulin content. The effect of hydrolysis parameters was investigated, obtaining the optimal conditions after using TFA at a concentration of 1 mg/mL, hydrolysis temperature of 90 ◦C, and hydrolysis duration of 60 min. The good linearity (>0.995), precision, recovery (100.27%), and stability obtained during the validation process showed that this developed method allows the quantification of total inulin content in the samples analyzed. This combined method may also contribute to the investigation of the functional properties of inulin (e.g., as prebiotic).
Partnering in the construction industry - an inter-project perspective

Traditionally the construction industry is known for primarily using classical type of contracting based on single transactions and price. However, partnering, i.e. alliance agreements and codevelopment, has during the last decades become an increasingly applied type of business model and project marketing strategy. As shown by Crespin-Mazet and Ghauri (2007), this type of agreement is appealing to the customer mainly in risky projects i.e. characterized by high uncertainty, complexity and in cases where it in some regard will have great impact on the customer’s overall activities. Such projects represent multileveled risk and therefore the customer finds it advantageous to share the risk with a partner. However, while partnering (both as a concept and as practice) represents a closer type of relationship between business actors compared to traditional contracting, it is often only studied in individual projects and thus mostly understood from an intra-project perspective. Hence, when considering the issue of partner identification, most research has focused on identifying the type of customers willing to engage into partnering agreements with the main contractor (Crespin-Mazet & Portier, 2010) and little research has focused on the impact of the rest of project network (including technical consultants, suppliers, financial providers etc.) in the successful development of such projects. In this paper we investigate a highly complex construction project in terms of representing a unique type of health care facility in the Nordic countries, commissioned by a newly formed and exceptional organisation representing seven county councils in Sweden. Although fulfilling all the above criteria of a risky project, the case also illustrates that the actors involved in the partnering agreement have a history (and future! ) of interacting, and that this leads to particular ways of relating to each other in the focal partnering project. Therefore we propose that in order to understand why, how and with whom partnering agreements are applied the studied temporal and organizational context needs to include several projects, and thus an inter-project perspective should be considered. 1 E.M. LYON, Mercadine, 23 avenue Guy de Collongue, 69 130 Ecully, France, crespin@em-lyon.com 2 Corresponding author: Uppsala University, Centre for Science and Technology Studies, Kyrkogardsgatan 10, 752 20 Uppsala, +4618-471 56 05, malena.ingemansson@sts.uu. se 3 Uppsala University, Centre for Science and Technology Studies, Kyrkogardsgatan 10, 752 20 Uppsala, ase.linne@sts.uu. se
High energy Gallium Arsenide laser does not facilitate collagen alteration in muscle skeletal extracellular matrix: experimental study

Introduction: Low intensity laser therapy has proven effective in treating different tissues, reducing inflammation, preventing the formation of fibrous tissue, and promoting muscle regeneration. Objective: To evaluate the effect of low intensity laser therapy, seven days after the injury, and verify whether the radiated energy chosen influences the formation of fibrous tissue. Methods: Thirty Wistar rats, adult male, average body weight 210-340 g were used. The animals were randomized into three groups: control group, untreated injured group (L), and injured and treated group (LT). After anesthetizing the animals, muscle injury was induced by freezing (cryoinjury) in the central region of the tibialis anterior muscle belly (TA) on the left hind limb, through an iron rod previously immersed in liquid nitrogen. A Gallium Arsenide laser, wavelength 904 nm was used. The applications were initiated 24 hours after injury, daily, for five days, at two points in the lesion area. After 7 days, the animals were euthanized; the TA muscle of the left hind limb was removed and frozen in liquid nitrogen and the obtained histological sections were subjected to Sirius Red staining. Results: Histological analysis showed no significant difference in relation to the area of fibrosis in the LT and L groups. Conclusion: The results suggest that the energy density of 69 J/cm² and final energy (4.8 joules) did not promote alterations in the area of collagen in the skeletal muscle extracellular matrix.
A Neurophysiological Examination Of Stress Control In Martial Artists

ii DEDICATION iii LIST OF ABBREVIATIONS iv ACKNOWLEDGEMENTS v LIST OF FIGURES ix INTRODUCTION 1 Martial arts, Aggression, and Stress 1 Measuring Stress, Aggression, and Physical Fitness 3 The Physiological Basis of the Stress Response 5 Hypotheses 11 METHODS 13 Materials 13 Participants 14 Pre-test Preparation 15 The First Stressor Test 16 The Second Stressor Test 17 Exposure to the International Affective Picture System (IAPS) 18 Statistical Analysis 18 TABLE OF CONTENTS (CONT.)
Ray and wave methods in complex geologic structures

Seismic interpretation is usually checked by comparing field with synthetic data. A method for calculating synthetic data is chosen in terms of speed, efficiency and accuracy. In this study we compare three methods namely a 2D ray tracer for irregular grids, a finite difference method for travel time calculations and an acoustic wave propagation simulator. The comparison of calculated travel times is performed for a stratigraphic model and a salt model. The ray methods are fast and efficient by making certain approximations. The wave methods are more accurate but computationally more expensive.
Three new species of cavernicolous goblin spiders (Araneae, Oonopidae) from Australia

The first cavernicolous members of the goblin spider family Oonopidae from Australia are described, all from Western Australia: Opopaea ectognophus sp. novo from the Pilbara region; Opopaea phineus sp. novo from the Kimberly region; and Camptoscaphiella infernalis sp. novo from Cape Range.
On the Brightness of Surviving Companions in Type Ia Supernova Remnants

The progenitor systems for type Ia supernovae are still controversial. One of the methods to test the proposed scenario for the progenitor systems is to identify companions that are supposed to survive according to the so-called single degenerate scenario. These companions might be affected by supernova ejecta. We present several numerical simulations of surviving red-giant companions whose envelopes were stripped and heated. We find that red-giants with less-massive helium cores ($\lesssim0.30\,M_{\odot}$) can be so faint after the supernovae that we cannot detect them. In addition, we apply the results to the case of SNR 0509-67.5, and put constraints on the helium core mass, envelope stripping, and energy injection under the single degenerate scenario for type Ia supernovae.
The Effects of Optimism and Openness to Experience on Employees' Happiness

Considering the importance of happiness in a working context, the aims of the present study were to examine impacts of optimism and openness to experience on employees’ happiness in public sector. One hundred and seventy employees in public sector completed questionnaires measuring optimism, openness to experience and employee’ happiness that respondents consisted of 84.1% male and most percentage of age were between 31 and 51. The results of structural equation modeling showed that both optimism and openness to experience were positively related to employees’ happiness.