Miracle-dz/UniFAR-FTUs huggingface dataset:
Evolution of lithium beyond the solar age: a Li survey of the old open cluster NGC 188

We have determined Li abundances for 11 G-type stars in the 6-8 Gyr old open cluster NGC 188. These data significantly enlarge the number of cluster stars with Li measurements, allowing us to extend the investigation of Li depletion in open clusters to ages well beyond the age of the Sun. We have also inferred the cluster metallicity which turns out to be solar. We find that solar-type stars in NGC 188 are only slightly more Li depleted than the much younger Hyades and no more Li depleted than stars of similar temperature in the 2-4 Gyr younger cluster M 67. At variance with M 67, NGC 188 members show virtually no scatter in their Li abundances. Surprisingly, no solar- type star in NGC 188 appears as Li depleted as the Sun or as the most Li depleted stars in M 67. We discuss the implications of these results for mechanisms of internal mixing and Li depletion in main sequence stars.
Multi wavelength investigation of the eruption of a sigmoidal quiescent filament

We report the first observation of a filament eruption in the metric and decimetric range, where the behavior of the filament can be followed during the event via thermal radio emission diagnostics. The event, occurring on February 28th 2001, involved a quiescent filament in a sigmoid magnetic configuration, whose eruption is triggered by the birth of a small parasitic polarity. Faint radio bursts mark the beginning of the event, which shows the appearance of a brightness temperature depression associated with the filament seen in EIT, and its propagation on the disk up to the limb. The event is associated with a halo CME observed with the coronagraphs LASCO C2 and C3, which shows a significant spatial and temporal continuity with the radio observations. Finally, static dimmings, similar to what is currently observed in EUV or SXR domains, are also detected in the radio band, around the site of the eruption. Movies of the event are attached to this article.
Selective Binding of Cyclic Nanopeptide with Halides and Ion Pairs; a DFT-D3 Study

In this article, theoretical studies on the selective complexation of the halide ions (F¯, Cl¯ and Br¯) and ion pairs (Na+F¯, Na+Cl¯ and Na+Br¯) with the cyclic nano-hexapeptide (CP) composed of L-proline have been performed in the gas phase. In order to calculate the dispersion interaction energies of the CP and ions, DFT-D3 calculations at the M05-2X-D3/6-31G(d) level was employed. Based on the results, F¯ and Na+F‌¯ make the most stable complex with the CP. The dispersion interactions between the ions and the CP are small while the electrostatic interactions are the driving force of the complex formation. Finally, natural bond orbital (NBO) and quantum theory of atoms in molecules (QTAIM) analyses indicate that F¯ makes the most stable complex with CP due to more charge transfer and stronger bond formation in comparison to other ions.
Establishing a new paradigm for teaching mathematics at engineering schools

This paper analyzes an ideal model of teaching, thinking after 5-10 years in Universities in the world. We propose the collaborative work for a fruitful learning. According with that, we expose some of our previous projects in this area and some ideas for the ? global education? , focused on the teaching and learning of mathematics to engineering students. Furthermore we explain some of our initiatives for implementing the "Bologna process? Aspects related to the learning and assessments will be analyzed. The establishment of the new teaching paradigm has to change the learning process and we will suggest some possible initiatives for adapting the learning to the new model. The paper ends by collecting some conclusions.
Nonlocal validity of an asymptotic one-dimensional nematicon solution

The propagation of coherent, polarized light in a nematic liquid crystal, governed by the nematicon equations, is considered. It is found that in the special case of 1 + 1 dimensions and the highly nonlocal limit, the nematicon equations have an asymptotic bulk solitary wave solution, termed a nematicon, which is given in terms of Bessel functions. This asymptotic solution gives both the ground state and the symmetric and antisymmetric excited states, which have multiple peaks. Numerical simulations of nematicon evolution, for parameters corresponding to experimental scenarios, are presented. It is found, for experimentally reasonable parameter choices, that the validity of the nonlocal approximation depends on the type of nematicon, as in some cases the asymptotic nematicon undergoes large amplitude oscillations. The magnitude of the nonlocality parameter for the asymptotic nematicon amplitude to be constant over a typical experimental propagation distance is also determined.
Magnetic properties of Pr-Fe-B thick-film magnets deposited on Si substrates with glass buffer layer

In order to improve the magnetic properties of PLD-made Pr-Fe-B thick-film magnets deposited on Si substrates, an adoption of a glass buffer layer was carried out. The glass layer could be fabricated under the deposition rate of approximately 70 μm/h on a Si substrate using a Nd-YAG pulse laser in the vacuum atmosphere. The use of the layer enabled us to reduce the Pr content without a mechanical destruction and enhance (BH)max value by approximately 20 kJ/m3 compared with the average value of non-buffer layered Pr-Fe-B films with almost the same thickness. It is also considered that the layer is also effective to apply a micro magnetization to the films deposited on Si ones.
Development and application of high-throughput amplified fragment length polymorphism technique in Calluna vulgaris (Ericaceae)

Calluna vulgaris is an important ornamental crop of the horticultural industry in Europe. In order to improve breeding of this species, especially of the most important trait of ‘bud-flowering', the implementation of molecular techniques that allow rapid, reproducible and efficient screening of whole segregating populations e.g. for molecular marker and mapping approaches is a requirement. We therefore aimed to introduce the powerful tool of amplified fragment length polymorphisms (AFLP ® ), a widely and successfully applied method, into our methodological assortment. As an essential prerequisite, the isolated DNA should be of adequate quality which is a common obstacle when dealing with woody species and their interfering secondary components/metabolites. The results of screening different and modified DNA isolation protocols are described. As the outcome of our evaluations of reaction conditions during the AFLP ® procedure, we circumstantiate a functional protocol ranging from DNA extraction to visualization of AFLP ® banding patterns for the woody crop C. vulgaris . This method is suitable for high throughput genetic applications and may even be transferable to other species. In addition, costs are reduced by reasonable reagents and multiplexing assays.
Superfluids and the cosmological constant problem

We introduce a novel method to circumvent Weinberg's no-go theorem for self-tuning the cosmological vacuum energy: a finite-temperature superfluid can counter the effects of an arbitrarily large cosmological constant. Fluctuations of the superfluid result in the graviton acquiring a Lorentz-violating mass and we identify a unique class of theories that are pathology free, phenomenologically viable, and do not suffer from instantaneous modes. This new and hitherto unidentified phase of massive gravity propagates the same degrees of freedom as general relativity with an additional Lorentz-violating scalar that is introduced by higher-derivative operators in a UV insensitive manner. The superfluid is therefore a consistent infrared modification of gravity. We demonstrate how the superfluid can degravitate a cosmological constant and discuss its phenomenology.
Full wavefield decomposition of high‐frequency secondary microseisms reveals distinct arrival azimuths for Rayleigh and Love waves

In the secondary microseism band (0.1–1.0 Hz) the theoretical excitation of Rayleigh waves (Rg/LR), through oceanic wave‐wave interaction, is well understood. For Love waves (LQ), the excitation mechanism in the secondary microseism band is less clear. We explore high‐frequency secondary microseism excitation between 0.35 and 1 Hz by analyzing a full year (2013) of records from a three‐component seismic array in Pilbara (PSAR), Australia. Our recently developed three‐component waveform decomposition algorithm (CLEAN‐3C) fully decomposes the beam power in slowness space into multiple point sources. This method allows for a directionally dependent power estimation for all separable wave phases. In this contribution, we compare quantitatively microseismic energy recorded on vertical and transverse components. We find the mean power representation of Rayleigh and Love waves to have differing azimuthal distributions, which are likely a result of their respective generation mechanisms. Rayleigh waves show correlation with convex coastlines, while Love waves correlate with seafloor sedimentary basins. The observations are compared to the WAVEWATCH III ocean model, implemented at the Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), which describes the spatial and temporal characteristics of microseismic source excitation. We find Love wave energy to originate from raypaths coinciding with seafloor sedimentary basins where strong Rayleigh wave excitation is predicted by the ocean model. The total power of Rg waves is found to dominate at 0.35–0.6 Hz, and the Rayleigh/Love wave power ratio strongly varies with direction and frequency.
Combining ability and heterosis for aluminium stress tolerance of soybean roots and shoots grown in acid sand culture

A six parent F2 diallel of soybeans was evaluated in potted acid sand culture with the objective of estimating combining ability and heterosis for aluminium stress tolerance. Highly significant differences were observed among the genotypes, crosses (F2/R), Parents, F2, Reciprocals (R) and Parents Vs (F2/R) for the root dry weight, shoot dry weight and relative root surface area. Both general combining ability (GCA) and specific combining ability (SCA) mean squares were highly significant for the three traits, except the root dry weight, where the SCA was not significant. The result also showed the presence of both additive and dominance gene action and the preponderance of the former compared to the later, indicating the possibility of selection of pure lines from the genotypes studied. Selection from TGX 1896-3F and TGX 1844-18E and crosses involving these two genotypes on acid soil would enhance a rapid progress in the breeding of aluminium tolerant genotypes of soybeans. Key words: Glycine max, diallel analysis, general combining ability, specific combining ability, additive effect, dominance effect.
A Study on the Relationship between the Typology of Knowledge-Intensive Businesses (KIBs) and Performance Measurement Systems (PMS): Evidence from Taiwan

This study utilizes the source of knowledge (internal or external) to derive four types of knowledge-intensive businesses (KIBs): non-KIB, knowledge creator, knowledge introducer, and knowledge integrator. Moreover, this study investigates the differences among the four types of KIB in their organizational characteristics and performance measurement system (PMS). The proposed model is empirically evaluated using survey data collected from top or middle managers of 127 Taiwan companies i n which 109 companies are classified as KIBs. Based on the analysis of multiple regressions and MANOVA, the empirical results reveal that there are significant differences in the organizational characteristics and PMS among the four types of KIBs. There are three main contributions in this research: (1) we categorize the KIBs into four types by using the main source of internal or external knowledge in the companies. This typology of KIBs would contribute to our understanding of knowledge management. (2) This study uses environmental uncertainty, innovation strategy, size and absorptive capacity to construct the organizational configuration of different KIBs. (3) We find that there are significant differences among the four types of KIB in the financial or non-financial PMS. This study utilizes the source of knowledge (internal or external) to derive four types of knowledge-intensive businesses (KIBs): non-KIB, knowledge creator, knowledge introducer, and knowledge integrator. Moreover, this study investigates the differences among the four types of KIB in their organizational characteristics and performance measurement system (PMS). The proposed model is empirically evaluated using survey data collected from top or middle managers of 127 Taiwan companies i n which 109 companies are classified as KIBs. Based on the analysis of multiple regressions and MANOVA, the empirical results reveal that there are significant differences in the organizational characteristics and PMS among the four types of KIBs. There are three main contributions in this research: (1) we categorize the KIBs into four types by using the main source of internal or external knowledge in the companies. This typology of KIBs would contribute to our understanding of knowledge management. (2) This study uses environmental uncertainty, innovation strategy, size and absorptive capacity to construct the organizational configuration of different KIBs. (3) We find that there are significant differences among the four types of KIB in the financial or non-financial PMS.
Core-shift and spectral analysis of the 2006 radio flare in CTA102

The 2006 radio flare in the blazar CTA102 is the largest ever reported for this source. The analysis of the single--dish light curves revealed a possible shock-shock interaction as a scenario for the 2006 outburst. In order to confirm this hypothesis we analyzed eight multi-frequency (2 GHz - 86 GHz) VLBI observations covering the 2006 flare. We detected a radio component ejected around 2005.9 and a stationary feature around 0.1 mas away from the core. We also performed a core-shift and spectral analysis on the fully calibrated VLBI maps. The frequency dependent position of the core slightly deviates from the typical $\nu^{-1}$-dependence during the flaring state. This behaviour may reflect a mismatch between magnetic energy density and energy density of the relativistic particles. From the core-shift corrected maps we obtained the spectral parameters and computed the temporal and spatial evolution of the jet intrinsic parameters such as the magnetic field and the particle density. The overall picture of the source could be best interpreted as an over-pressured jet perturbed by traveling shock waves.
A study of static analysis for fault detection in software

No single software fault-detection technique is capable of addressing all fault-detection concerns. Similar to software reviews and testing, static analysis tools (or automated static analysis) can be used to remove defects prior to release of a software product. To determine to what extent automated static analysis can help in economic production of a high-quality product, we have analyzed static analysis faults and test and customer-reported failures for three large-scale industrial software systems developed at Nortel Networks. The data indicate that automated static analysis is an affordable means of software fault detection. Using the Orthogonal Defect Classification scheme, we found that automated static analysis is effective at identifying Assignment and Checking faults, allowing the later software production phases to focus on more complex, functional, and algorithmic faults. A majority of the defects found by
Evidence of Low Chloroplast Genetic Diversity in Two Carpinus Species in the Northern Balkans

Genetic diversity and differentiation in two Carpinus species ( C. betulus and C. orientalis ) occurring in Romania was investigated by using three chloroplast Simple Sequence Repeat markers (cpSSRs). A total of 96 and 32 individuals were sampled in eighteen C. betulus and six C. orientalis populations, respectively. A total of four chloroplast haplotypes were observed. Two haplotypes were specific for C. betulus and two for C. orientalis . Most of C. betulus populations were fixed for the predominant haplotype (H1), which was observed in 82% of the individuals. All C. orientalis populations were fixed for one haplotype or the other. Populations with haplotype (H3) are spread in southern Romania and the haplotype (H4) was observed at the northern limit of C. orientalis natural distribution range. Genetic differentiation among populations was moderate in C. betulus ( G ST = 0.422), compared to the high value observed in C. orientalis ( G ST = 1.000), which can be explained by the occurrence of a distinct haplotype in the peripheral population. R ST values for both species suggest low levels of recurrent gene flow through seeds among populations. Our data on geographic distribution of chloroplast DNA haplotypes may be useful for the identification and conservation of distinct genetic resources of the two Carpinus species.
Z-Scan Measurement For The Thermo-Optic Coefficient and Transmitted Beam Profile Of 1.8-Dihydroxy-Naphthalin-3, 6 Disulfonic Acid-[2-(4-azo)]-N-(5-Methyl-3-Isoxazolyl)-Benzene Sulfonamide

The nonlinear optical properties of an azo dye (1.8-Dihydroxy-naphthalin-3, 6 disulfonic acid- [2- (4-azo)]-N-(5-methyl-3-isoxazolyl)-benzene sulfonamide) are studied by using z-scan and diffraction ring technique with continuous wave (cw) laser at a wavelength of 532 nm. The obtained results for the nonlinear refractive index , , and the thermo-optic coefficients , , are found to be of the order of Wcm -2 and K -1 respectively. The transmitted beam profiles, the distribution of intensity corresponding to the sample positions and D- distribution of rings number of each pattern variation for the azo dye samples have been studied. These results indicate that the azo dye is a promising candidate for applications in nonlinear optical devices. Keywords: Nonlinear refractive index, Thermo-optic coefficients, Diffraction ring.
Alcohol-related affordances and group subjectivities: A Q-Methodology study

Abstract Aims: An Ecological approach to alcohol behaviour focuses on understanding individual–environment transactions, rather than on cognitive antecedents of behaviour. Meaning exists in the interdependence of individuals and their environments, in terms of affordances. Through subjective experience, this study focussed on group viewpoints related to alcohol-related affordances, or opportunities to consume alcohol in shared drinking environments. Methods: Forty students with a range of self-reported drinking behaviours participated in a Q-Methodology study, ranking 60 statements along a symmetrical grid. This varied concourse of alcohol-related affordances was obtained from a previous observation study within licenced premises and a photo-elicitation interview study with drinkers. Findings: Factor analysis and post-sort interviews revealed four subjective perspectives held by groups about their drinking behaviour: 13 participants were aware of contextual influences, but autonomous in their drinking choices; 12 participants were conscious of influences and compliant to their effects; six participants were unaware of influences, but unanimous with their peers; two participants were concerned about acting appropriately in a context by taking up canonical affordances. Conclusions: Grouping subjectivities from a varied concourse of affordances can reveal subjective experience in relation to drinking environments and alcohol behaviour. This conceptual approach for understanding drinking behaviour should be studied further.
ESTIMATING BUDGET VARIABILITY FOR ROAD PROJECTS

The use of contingency in construction provides a tacit acknowledgement of the perennial problem of cost overruns in the delivery of projects. The effects of these cost overruns are adverse consequences such as projects becoming non-viable or in extreme cases being abandoned. The immediate as well as other stakeholders associated with the project suffer the socio-economic impact of this adverse consequence. To some extent the cost overruns can be deemed as being symptomatic of inadequate planning and budgeting of projects that in turn is a consequence of accuracy of costing data employed for estimating project budgets. The analysis involved in the investigation would help to characterise the scale of escalation on construction projects. The projects would be drawn from the road sub-sector of construction. Understanding the nature and factors that account for the overruns should assist in establishing more accurate project costs. The aim of the study is to explore the nature and scale of project cost overrun in construction to provide information for planning future projects. The study will utilise project data from road schemes to establish the magnitude of the cost overrun.
A Method to Compensate Head Movements for Mobile Eye Tracker Using Invisible Markers

Although mobile eye-trackers have wide measurement range of gaze, and high flexibility, it is difficult to judge what a subject is actually looking at based only on obtained coordinates, due to the influence of head movement. In this paper, a method to compensate for head movements while seeing the large screen with mobile eye-tracker is proposed, through the use of NIR-LED markers embedded on the screen. The head movements are compensated by performing template matching on the images of view camera to detect the actual eye position on the screen. As a result of the experiment, the detection rate of template matching was 98.6%, the average distance between the actual eye position and the corrected eye position was approximately 16 pixels for the projected image (1920 x 1080).
Does Grief Transfer across Generations? Bereavements during Pregnancy and Child Outcomes †

Using population data from Norway, we examine the effects of stress induced by the death of the mother's parent during pregnancy on both the short-run and the long-run outcomes of the infant. Using a variety of empirical strategies to address the issue of nonrandom exposure to death during a pregnancy, we find small negative effects on birth outcomes. However, we find no evidence of adverse effects on adult outcomes. This suggests that, though there may be measurable effects on birth outcomes, acute psychological stressors during pregnancy have limited adverse consequences for the child's success in education and the labor market. (JEL I12, J13, J16)
Be Empathic! The Influence of Empathy on Attitude Formation in the German Refugee Debate

The study was conducted to investigate the elaboration and memorisation of the emotionally charged refugee debate with reference to the possible influences of empathic feelings, political attitude and mood. It was hypothesised that empathy towards refugees correlates positively with advanced elaboration and memorisation of the refugee debate. Participants’ personal empathy was assessed through a self-report questionnaire which differentiates between four distinct dimensions of empathy. Afterwards, participants listened to an interview with a politician from a German populist party about refugee policies concluding with a test about the content. As expected, the results revealed a positive correlation between the empathy dimensions’ Fantasy and Personal Distress and the correct answers of the open-ended question test. The Fantasy dimension of empathy was significantly correlated with the elaboration and memorisation of the extreme and populist positions in the refugee debate. Important practical implications as well as limitations of the study were discussed.