Miracle-dz/UniFAR-FTUs huggingface dataset:
Approaches for development of Software Projects: Agile methodology

: In the new era of software development, project developers and teams are facing many problems while adopting traditional software development methodologies. In traditional methodologies there is a scope for the wastage of different resources like people, cost and others. Hence there is a need to develop a methodology to minimize the usage of minimum resources for the maximization of chances of developing reliable software. Hence, to overcome this problem software developers adapt a new methodology that is “Agile methodology”. Agile methodology is nothing but a software development methodology that gives major priority to the customer at every stage of the development process. There is a chance to match expected results and actual results at every phase of Software Development Life Cycle (SDLC) for the betterment of end software product. Also, scope will be given at every phase for the adjustment of minor/major modifications to improve the level of customer satisfaction phase by phase. Our paper mainly focuses to make software development requirements as dynamic to fulfill the highest level of customer satisfaction. In our paper, we are going to implement the concept of iterative and incremental processes to develop the project in the IT industry with the help of time-boxing technique. A hybrid Software Development Life Cycle (SDLC) model, which is a combination of Iterative and Incremental Software Development Process models was designed and developed in our study. Agile methodology mainly focuses on the inclusion of the customers/end users in the software development process itself. This methodology also releases the project after completion of each iteration for the betterment in the next iteration and so on.
Unique Equilibrium Selection, Potential, and Noisy Perturbations: A Continuous-Time Approach∗

In this paper, we propose an equilibrium-selection approach that perturbs static games with noise. Before playing the original game, players commonly observe noisy shocks and gradually adjust their actions without observing any information about their opponents’ behavior. We prove equilibrium uniqueness under an arbitrary noise level with mild smoothness conditions. Moreover, in the case of potential games, the unique equilibrium approximates the global maximizer of the potential as the noise level approaches zero.
Review on study of Behavioral Approach to Leadership

It’s all about the attitude and style that a leader adapts to represent himself. The behavioral propensity is the backbone which majorly emphasize and reflect the leader’s capabilities and qualities. Their behavioral approach mainly emphasizes on the aspect as to what the leaders do and how they proceed with the things. This approach reflects the commitment which is combined with excellence gets positive impact from the followers reflecting the leadership skills. This feature differentiates it from the earlier discussed chapters, Trait Approach and the Skills Approach. When speaking of Behavioral Approach, the researchers figured there is more to it. It can be linked to more aspects that dealt with different features. Generally speaking, the approach is divided into two aspects Task behavior and Relationship behavior. The researchers assessed that the Task behavior reflects the capabilities to complete the objective and achieve the end result. Whereas, the Relationship behavior focuses on the behavior of the leader towards his/her followers and how leader interacts and make them feel more comfortable in their presence.
A Coq formalization of data provenance

In multiple domains, large amounts of data are daily generated and combined to be analyzed. The interpretation of these analyses requires to track back the provenance of combined data with respect to initial, raw data. The correctness of the provenance is crucial in many critical domains, such as medicine to prescribe treatments. In this article, we propose the first provenance-aware extended relational algebra formalized in a proof assistant (Coq), for a non trivial subset of database queries: queries containing aggregates, null values, and correlated sub-queries. The formalization is validated by an adequacy proof with respect to standard evaluation of queries. This development is a first step towards a posteriori certification of provenance for data manipulation, with strong guaranties.
Student Relationships: A Social Network Analysis

In this Complete Research paper, we present a social network analysis of an academic summer bridge and outdoor experience program designed to support the social and academic integration of incoming STEM majors at Boise State University. Summer bridge programs can support students through both the development of academic skills and the creation of intentional community and peer support networks which can facilitate students’ sense of belonging in both their chosen major and at the university. Alumni from the past five years of the program received a survey asking them to indicate their connections to other participants, faculty, and staff associated with the program. Preliminary results of this analysis suggest that the program supports the development of lasting relationships with peers, and participants continue to value and maintain these relationships well beyond the time spent together in the summer bridge program. The data also illustrate the important role that faculty and peer mentors play in facilitating cross-cohort connections, and how programmatic decisions can affect the lasting impacts of summer bridge programs.
Emotional Dimensions of Teaching in Elementary Education Preparation

Student teaching is a pivotal event in teacher education preparation programs, and there is a need to investigate emotions in teaching. This study examined how one elementary program navigated the emotional dimensions of teaching. Findings revealed that the emotional dimensions of student teachers were influenced by individualized factors unique to the teacher; certain emotions were perceived as more acceptable to express; and supervisors needed to support student teachers to manage and respond to the emotional dimensions of teaching. The recommendation is to go beyond the technical and academic aspects of teaching and address the emotional dimensions to best prepare the whole teacher.
Exotic μτ j j events from heavy ISS neutrinos at the LHC

Article history: Received 7 September 2015 Received in revised form 13 October 2015 Accepted 8 November 2015 Available online 11 November 2015 Editor: B. Grinstein In this letter we study new relevant phenomenological consequences of the right-handed heavy neutrinos with masses at the O(1) TeV energy scale, working within the context of the Inverse Seesaw Model that includes three pairs of quasi-degenerate pseudo-Dirac heavy neutrinos. We propose a new exotic signal of these heavy neutrinos at the CERN Large Hadron Collider containing a muon, a tau lepton, and two jets in the final state, which is based on the interesting fact that this model can incorporate large Lepton Flavor Violation for specific choices of the relevant parameters, particularly, the neutrino Yukawa couplings. We will show here that an observable number of μτ j j exotic events, without missing energy, can be produced at this ongoing run of the LHC. © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
High Voltage Birefringence Measurements of Elastic Constants

Abstract It is shown that the birefringence change associated with an electric field-induced planar to homeotropic Freedericksz transition can be linearly related to the applied voltage for large director deformations. Values for the bend:splay elastic constant ratio can be obtained from a linear fit of voltage to inverse birefringence, Experimental results are presented for 5CB which are in reasonable agreement with values obtained by other techniques.
Geriatric depression among the retired elders in Madurai, Tamil Nadu, India

Background: Retirement makes an impact on the psychological health of elders. Geriatric depression is common among elders and it is a major public health challenge in India. Aims & Objectives: To assess the level of Geriatric depression and its relationship with socio demographic factors. Materials and Methods: 5 retired associations out of 36 associations located in Madurai district were selected by simple random sampling which has the total members of 1934.As the stratum varies in each association, 64 respondents are selected from each association irrespective of the number of samples by adopting stratified disproportionate sampling method on the basis of the Krejice and Morgan (1970) sample table. Socio demographic details were collected with questionnaire and Geriatric depression was assessed with Geriatric Depression rating scale. Results: 28.1 per cent have medium level and 9.1 per cent have high level of Geriatric depression. Female has high level of geriatric depression when compared to male. Conclusion: Socio demographic factors of retired elders have a major impact on Geriatric depression and it has to be dealt as public health issue.
Stimulated Raman Scattering and Raman Instability of an Intense Helicon Wave in Longitudinally Magnetized n‐Type Piezoelectric Semiconducting Plasma

A detailed analytical investigation is made of the Raman instability of the Stokes component of the scattered helicon wave in longitudinally magnetized n-type nondegenerate cubic piezoelectric semiconductor crystal belonging to the class 43m. The general dispersion relation is obtained by using coupled mode theory and considering that the scattering is due to both the molecular vibrations produced due to the pump wave at a frequency equal to that of the transverse optical phonons and the electron plasma wave. The dispersion relation is solved for both the cases of scattered helicon waves (i.e. in the cases of left-hand and right-hand circularly polarized waves). The threshold value of the pump amplitude necessary for the onset of instability and the growth rate well above the threshold are obtained analytically for both the modes. The analysis is applied to a specific semiconductor, n-InSb at 77 K duly irradiated by a high-power helicon wave for numerical estimations. The laser wave intensities used are in the range of 109 to 1012 Wm−2 which is assumed to be less than the damage threshold of the InSb crystal. The order of wave amplitude is feasible presently. Es wird eine ausfuhrliche analytische Untersuchung der Raman-Instabilitat der Stokesschen Komponente der gestreuten Helikonwelle in longitudinal magnetisierten n-leitenden, nichtentarteten, kubischen, piezoelektrischen Halbleiterkristallen der Klasse 43m durchgefuhrt. Die allgemeine Dispersionsbeziehung wird unter Benutzung der Theorie gekoppelter Moden und unter der Bedingung erhalten, das die Streuung sowohl durch Molekulschwingungen infolge der Pumpwelle bei einer Frequenz, die der der transversalen optischen Phononen gleich ist, als auch durch die Elektronenplasmawelle hervorgerufen wird. Die Dispersionsbeziehungen werden fur beide Falle der gestreuten Helikonwellen (d. h. fur die Falle der links- und rechts-zirkular polarisierten Wellen) gelost. Der Schwellenwert der Pumpamplitude, der fur das Einsetzen der Instabilitat notwendig ist, und die Anstiegsrate oberhalb des Schwellenwerts werden analytisch fur beide Moden erhalten. Die Analyse wird auf einen spezifischen Halbleiter, n-InSb bei 77 K, angewendet, der fur numerische Berechnungen stark mit einer Hochleistungs-Helikonwelle bestrahlt wird. Die benutzten Laserwellenintensitaten sind im Bereich von 109 bis 1012 Wm−2, ein Wert, von dem angenommen wird, das er unterhalb der Damageschwelle des InSb-Kristalls liegt. Die Grosenordnung der Wellenamplitude ist gegenwartig erreichbar.
Growth and Luminescence Properties of Mg‐Doped GaN Prepared by MOVPE

Growth and luminescence properties of Mg‐doped prepared by metal‐organic vapor phase epitaxy, in which or is used as the Mg source gas, are reported for the first time. It was found that the Mg concentration in is proportional to the flow rate of the Mg source gas; the doping efficiency of Mg into is independent of the substrate temperature from 850° to 1040°C; and Mg in acts as an acceptor and forms blue luminescence centers. By using, an efficient near‐UV and blue LED can be fabricated.
Surface Structure of Asymmetric Fluorinated Block Copolymers

Surface structures of asymmetric poly[styrene-block-4-(perfluorooctylpropyloxy)styrene] block copolymers (PS−PF) with the shorter PF block than the PS block have been investigated using X-ray photoelectron spectroscopy (XPS) and dynamic secondary ion mass spectrometry (SIMS). Fluorooctyl side groups (C8F17) of the block copolymers segregate to the surface due to their low surface energy. Asymmetry of the block remarkably influences the structure of the C8F17 side groups and the backbone of PS−PF copolymers at the surface. When a weight fraction of the PF block, , is 0.09, the surface is partially covered by the C8F17 side groups with a thickness thinner than the length of the C8F17 side group. The C8F17 side groups hence lie parallel to the surface. When is approximately 0.25, the backbone of the PF block lies parallel to the surface, and the C8F17 side groups stand perpendicular to the surface. Such a conformation results in a domain thickness of the PF block comparable to the length of the C8F17 side gr.
Energy transfer processes involving different luminescence centres in BaF2:Ce

The luminescence of cerium-doped barium fluoride crystals has been investigated as a function of wavelength and time. For excitation UV light, X-rays and gamma rays were used. The well known cross luminescence (CL) near 200 nm and self-trapped exciton luminescence (STE) near 300 nm, which are due to excitations of the host lattice, are observed at low cerium concentrations. For increasing cerium concentrations, the CL and STE emission is gradually replaced with cerium emission. Luminescence due to at least three different cerium related centres was found. The decay of the luminescence under gamma excitation is non-exponential. At low cerium concentrations, its duration is much longer than the decay time of the excited level of the predominant cerium centre. At higher cerium concentrations, the luminescence decays faster. These observations are explained in terms of an energy transfer model. The cerium luminescence due to energy transfer from CL and STE centres was calculated using the parameters obtained from experiment. Comparing the calculations to the observed photon outputs and decay curves leads to an interpretation of the luminescence mechanism in BaF2:Ce. Apart from radiative and dipole-dipole energy transfer from CL and STE centres to cerium centres, transfer from the STE to unknown centres also plays a role, as well as direct excitation of cerium centres by free or trapped electrons and holes.
Hollow-Fiber Membrane Extraction of Copper(II) from Aqueous Ethylenediaminetetraacetic Acid Solutions with Aliquat 336

The extraction of Cu(II) from an equimolar EDTA ethylenediaminetetraacetic acid (EDTA) solution across microporous hollow fibers to an organic phase containing Aliquat 336 (a quaternary amine) was studied. It was shown that the resistance of interfacial chemical reaction could be neglected. A mass-transfer model was proposed considering aqueous-layer diffusion, membrane diffusion, and organic-layer diffusion on the basis of a good knowledge of extraction chemistry and the transport properties of the relevant geometry. The calculated time profiles of Cu(II) concentrations were in reasonable agreement with the measured ones (average standard deviation, 12%). The mass-transfer mechanism of this membrane extraction process was finally identified and discussed.
Effect of Particle Size on the Kinetics of the Reaction Between Magnesium and Aluminum Oxides

The kinetics of the reaction MgO+A12O3+MgAl2O4 was studied using both unsized “small” (∼1 to 3 pm) and sized “large” (∼50 and 100 μm) particles of the reactants within narrow size distributions and uniform shapes. The data were fitted to various equations commonly used in kinetic analyses of isothermal reactions of solids, analyzed by graphical analysis and linear regression analysis, and compared in terms of the predictive mean square error (MSE) criterion. Graphical and linear regression analysis showed that the reaction could be described almost equally well by first-order kinetics, the equation derived by Avrami-Erofe'ev for the nucleation and growth model, and the equations of Jander, Carter, and Ginstling-Brounshtein for diffusion models. The MSE method gave similar results, except that the model of Avrami-Erofe'ev was marginally better than the other four equations. The results are compared with those of the systems BaCO3+Fe2O3 and MgO+Fe2O3 studied previously.
Les étudiants de première génération : un concept prometteur?

Depuis les années 1960, grâce à des politiques éducatives incitatives, l’accès à l’enseignement supérieur s’est amélioré dans les pays industrialisés. Par conséquent, de nouveaux groupes d’étudiants, dits non traditionnels, sont devenus de plus en plus présents dans les établissements d’enseignement postsecondaire : les adultes, les femmes, les groupes ethnoculturels minoritaires ainsi que les étudiants de première génération (ÉPG), c’est-à-dire les étudiants dont aucun parent n’a fréquenté l’enseignement postsecondaire. Malgré une nette amélioration des taux d’accès à l’éducation postsecondaire, certains de ces groupes demeurent sous-représentés à cet ordre d’enseignement. Tel serait notamment le cas des étudiants de première génération.
Multi-stimuli sensitive supramolecular hydrogel formed by host–guest interaction between PNIPAM-Azo and cyclodextrin dimers

We reported here a novel three stimuli sensitive hydrogel that was constructed by the formation of host–guest complexes between poly(N-isopropylacrylamide) (PNIPAM) containing azobenzene groups and cyclodextrin dimers connected by disulfide bonds. The obtained hydrogel gives a smart response to the stimuli of temperature, light, and reduction, manifested in the form of a sol–gel phase transition.
The parametrization of a Thole-type all-atom polarizable water model from first principles and its application to the study of water clusters (n=2–21) and the phonon spectrum of ice Ih

We present the parametrization of a new polarizable model for water based on Thole’s method [Chem. Phys. 59, 341 (1981)] for predicting molecular polarizabilities using smeared charges and dipoles. The potential is parametrized using first principles ab initio data for the water dimer. Initial benchmarks of the new model include the investigation of the properties of water clusters (n=2–21) and (hexagonal) ice Ih using molecular dynamics simulations. The potential produces energies and nearest-neighbor (H-bonded) oxygen–oxygen distances that agree well with the ab initio results for the small water clusters. The properties of larger clusters with 9–21 water molecules using predicted structures from Wales et al. [Chem. Phys. Lett. 286, 65 (1998)] were also studied in order to identify trends and convergence of structural and electric properties with cluster size. The simulation of ice Ih produces a lattice energy of −65.19 kJ/mol (expt. −58.9 kJ/mol) with an average dipole moment of 2.849 D. The calculated.
Multiscale Modeling of Au-Island Ripening on Au(100)

We describe a multiscale modeling hierarchy for the particular case of Au-island ripening on Au(100). Starting at the microscopic scale, density functional theory was used to investigate a limited number of self-diffusion processes on perfect and imperfect Au(100) surfaces. The obtained structural and energetic information served as basis for optimizing a reactive forcefield (here ReaxFF), which afterwards was used to address the mesoscopic scale. Reactive force field simulations were performed to investigate more diffusion possibilities at a lower computational cost but with similar accuracy. Finally, we reached the macroscale by means of kinetic Monte Carlo (kMC) simulations. The reaction rates for the reaction process database used in the kMC simulations were generated using the reactive force field. Using this strategy, we simulated nucleation, aggregation, and fluctuation processes for monoatomic high islands on Au(100) and modeled their equilibrium shape structures. Finally, by calculating the step line tension at different temperatures, we were able to make a direct comparison with available experimental data.
Study of thin films of kraft lignin and two DHPs by means of single-molecule force spectroscopy (SMFS)

Abstract The adhesion of single and associated lignin chains to a substrate has been studied by means of single-molecule force spectroscopy (SMFS). Softwood kraft lignin (KL) and two lignin polymer models (dehydrogenation polymers, DHPs) based on coniferyl alcohol (DHPc.alc.) and coniferaldehyde (DHPc.ald.) were in focus. The desorption force from the “silicon nitride SMFS tip” for the KL was significantly greater than that of the DHPs. The higher desorption force was interpreted as being due to the interaction of carboxyl groups through hydrogen bonding with the tip as well as to the less compact polymeric layer at the interface. The distribution of the extended chain lengths was determined, and self-association of lignin chains was observed. For both KL and the DHPc.ald. , chains were extended significantly beyond the limit that would be expected for polymers with the corresponding degree of polymerization. The α-carbon on the DHPc.alc. has a strong intramolecular hydrogen bonding interaction with the adjacent aryl ether, which inhibits the possibility of the ether to participate in intermolecular hydrogen bonding with nearby lignin chains. Thus, the self-association for KL and DHPc.ald. was found to be dominated by intermolecular hydrogen bonding with carboxylic groups and aryl ether functionalities.