Miracle-dz/UniFAR-FTUs huggingface dataset:
The Tully-Fisher relation at intermediate redshift ⋆,⋆⋆

Using the Very Large Telescope in Multi Object Spectroscopy mode, we have observed a sample of 113 field spiral galaxies in the FORS Deep Field (FDF) with redshifts in the range 0.1< z< 1.0. The galaxies were selected based on apparent brightness (R< 23 m ) and encompass all late spectrophotometric types from Sa to Sdm/Im. Spatially resolved rotation curves have been extracted for 77 galaxies and fitted with synthetic velocity fields taking into account all observational e ffects from inclination and slit misalignment to seeing and slit width. We also compared different shapes for the intrinsic rotation curve. To obtain robust values of Vmax, our analysis is focused on galaxies with rotation curves th at extend well into the region of constant rotation velocity at large radii. If the slope of th e local Tully-Fisher relation (TFR) is held fixed, we find evid ence for a mass-dependent luminosity evolution which is as large as up toMB≈ −2 m for the lowest-mass galaxies, but is small or even negligible for the highest-mass systems in our sample. In effect, the TFR slope is shallower at z≈ 0.5 in comparison to the local sample. We argue for a mass-dependent evolution of the mass-to-light ratio. An additional population of blue, low-mass spirals does not seem a very appealing explanation. The flatter tilt we find for the distant TFR is in contradictio n to the predictions of recent semi-analytic simulations.
Student perceptions on the motivational pull of Teaching Proficiency through Reading and Storytelling (TPRS): a self-determination theory perspective

ABSTRACT This paper explores a group of secondary school students’ feelings about Teaching Proficiency through Reading and Storytelling (TPRS) using a self-determination theory (SDT) lens. It adds to the limited, existing literature on TPRS and is the first to study it from a purely motivational perspective. The paper analyses the extent to which students perceived that TPRS satisfied SDT's three basic psychological needs of autonomy, competence and relatedness. It employs a case study approach, using data from classroom observations, background group interviews and focus group interviews. The findings conclude that TPRS is a decidedly motivating and engaging method for foreign language (FL) learners. The three needs of SDT were found to be highly interrelated with satisfaction of one influencing positively on the others. The findings suggest that the autonomous nature of co-creating stories with the teacher, result in a heightened sense of personal ability and belongingness to the group. The results reinforce conclusions from other studies, suggesting that activities that are perceived as fun, interesting, novel and different are most likely to develop intrinsic motivation in FL learners. The findings have implications for increasing intrinsic motivation in FL classrooms around the world.
COMMUNICATION IN THE BATTLE OF THE SEXES GAME

We report experimental results on the role of preplay communication in a one-shot, symmetric battle of the sexes game. We conducted games in which there was no communication, and we studied the effects of three different communication structures: one-way communication with one round of messages and two-way communication with one round as well as three rounds of messages. With these messages, each player could indicate which action he planned to take. Communication significantly increased the frequency of equilibrium play. One-way communication was most effective in resolving the coordination problem. While there was more conflict with two-way communication, one round of communication helped to overcome some of the coordination problems, and three rounds of communication performed even better.
Wage Effects of Search Methods for Immigrants and Natives in Sweden

Recruiting Through Networks - Wage Premiums and Rewards to RecommendersThis paper examines the firm's use of recommenders in its recruiting process. In the model, recommenders possess personal information about the worker's ability and about the workplace. In view of this private information, the firm may reward recommenders for good recruiting, thus using recommenders as a screening device. In equilibrium the expected skill of a worker is higher if recruitment has occurred through a recommender rather than through the market, but there is no wage premium. Swedish survey data supports the absence of a wage premium for recommended workers. It has not been possible to test the expected skill or the firm's reward policy vis-a-vis the recommender.Job Search by Immigrants in SwedenThis paper analyses the job search strategies of immigrants born outside Europe and compares these with the search strategies of the native population. The analysis uses unique Swedish data gathered during 1998. Two clear patterns can be traced in the empirical analysis: immigrants search more intensively than natives; also, the greater search intensity is a requisite for getting a job. Specifically, the first analysis shows that immigrants who got jobs were likely to have used networks or direct contact with employers to a greater extent than natives. Immigrants who got jobs had submitted more applications and spent more time on job search than natives, while those who did not get jobs had not spent more time on job search than natives. The fourth and last analysis looks at the number of methods used in job search. Immigrants who left unemployment had not used more methods than natives. On the other hand, immigrants who remained unemployed had used significantly more methods than natives, indicating that it is not necessarily productive to use too many methods.Wage Effects of Search Methods for Immigrants and Natives in SwedenUsing unique cross-section survey data collected in 1998, this study examines whether successful job-search method differ between natives and immigrants from outside Europe, and whether there is a wage difference between the two groups associated with the search method used.It is found that those individuals from outside Europe who got jobs did relatively better when using formal methods than when using informal ones.Next, a wage analysis has been performed, which shows that there is an overall wage discount for those born outside Europe. The discount is larger when using informal methods rather than formal.To explore this further the informal method measure is divided in two parts, one part for contacts through friends and family and the second for contacts with the employer. The penalty for immigrants from outside Europe using an informal method as a successive job-search device is partly explained by contact with the employer, suggesting that the penalty for using informal methods has been underestimated in previous studies.An attempt has also been made to control for the effect of unobservable characteristics on wages, but this did not have any significant impact.
Prediction of local structure in proteins using a library of sequence-structure motifs.

We describe a new method for local protein structure prediction based on a library of short sequence pattern that correlate strongly with protein three-dimensional structural elements. The library was generated using an automated method for finding correlations between protein sequence and local structure, and contains most previously described local sequence-structure correlations as well as new relationships, including a diverging type-II beta-turn, a frayed helix, and a proline-terminated helix. The query sequence is scanned for segments 7 to 19 residues in length that strongly match one of the 82 patterns in the library. Matching segments are assigned the three-dimensional structure characteristic of the corresponding sequence pattern, and backbone torsion angles for the entire query sequence are then predicted by piecing together mutually compatible segment predictions. In predictions of local structure in a test set of 55 proteins, about 50% of all residues, and 76% of residues covered by high-confidence predictions, were found in eight-residue segments within 1.4 A of their true structures. The predictions are complementary to traditional secondary structure predictions because they are considerably more specific in turn regions, and may contribute to ab initio tertiary structure prediction and fold recognition.
The Effects of Boceprevir and Telaprevir on the Pharmacokinetics of Maraviroc: An Open-Label, Fixed-Sequence Study in Healthy Volunteers

Objective:To evaluate the effects of boceprevir (BOC) and telaprevir (TVR) on the pharmacokinetics (PK) of maraviroc (MVC) in healthy volunteers. Methods:In this open-label, fixed-sequence study, 14 volunteers received MVC 150 mg twice daily alone for 5 days (period 1), followed by MVC + BOC 800 mg 3 times daily and MVC + TVR 750 mg 3 times daily, each for 10 days in periods 2 and 3, respectively, with a ≥10-day wash-out. PK was analyzed on day 5 of period 1 and day 10 of periods 2 and 3. Safety was also assessed. Results:Ratios of the adjusted geometric means (90% confidence intervals) for MVC area under the curve from predose to 12 hours, maximum plasma concentration, and plasma concentration at 12 hours were 3.02 (2.53 to 3.59), 3.33 (2.54 to 4.36), and 2.78 (2.40 to 3.23), respectively, for MVC + BOC versus MVC alone, and 9.49 (7.94 to 11.34), 7.81 (5.92 to 10.32), and 10.17 (8.73 to 11.85), respectively, for MVC + TVR versus MVC alone. PK profiles for MVC + BOC or TVR were consistent with historic values for BOC and TVR monotherapy. Adverse event incidence was higher with MVC + BOC and MVC + TVR versus MVC alone. Dysgeusia (50%) and pruritus (29%) occurred most commonly with MVC + BOC, and fatigue (46%) and headache (31%) with MVC + TVR. There were no serious adverse events. Conclusions:MVC exposures were significantly increased with BOC or TVR, therefore MVC should be dosed at 150 mg twice daily when coadministered with these newly approved hepatitis C protease inhibitors. No dose adjustment for BOC or TVR is warranted with MVC. MVC + BOC or TVR was generally well tolerated with no unexpected safety findings.
Where Are the Baryons? II. Feedback Effects

Numerical simulations of the intergalactic medium have shown that at the present epoch, a significant fraction (40%-50%) of the baryonic component should be found in the (T ~ 106 K) warm-hot intergalactic medium (WHIM)—with several recent observational lines of evidence indicating the validity of the prediction. We here recompute the evolution of the WHIM with the following major improvements: (1) galactic superwind feedback processes from galaxy and star formation are explicitly included; (2) major metal species (O V to O IX) are computed explicitly in a nonequilibrium way; and (3) mass and spatial dynamic ranges are larger by factors of 8 and 2, respectively, than in our previous simulations. Here are the major findings: (1) Galactic superwinds have dramatic effects, increasing the WHIM mass fraction by about 20%, primarily through heating of warm gas near galaxies with density 101.5-104 times the mean density. (2) The fraction of baryons in the WHIM is increased modestly from the earlier work but is still ~40%-50%. (3) The gas density of the WHIM is broadly peaked at a density 10-20 times the mean density, ranging from underdense regions to regions that are overdense by 103-104. (4) The median metallicity of the WHIM is 0.18 Z☉ for oxygen, with 50% and 90% intervals being (0.040, 0.38) and (0.0017, 0.83).
Stochastic description of complex and simple spike firing in cerebellar Purkinje cells

Cerebellar Purkinje cells generate two distinct types of spikes, complex and simple spikes, both of which have conventionally been considered to be highly irregular, suggestive of certain types of stochastic processes as underlying mechanisms. Interestingly, however, the interspike interval structures of complex spikes have not been carefully studied so far. We showed in a previous study that simple spike trains are actually composed of regular patterns and single interspike intervals, a mixture that could not be explained by a simple rate‐modulated Poisson process. In the present study, we systematically investigated the interspike interval structures of separated complex and simple spike trains recorded in anaesthetized rats, and derived an appropriate stochastic model. We found that: (i) complex spike trains do not exhibit any serial correlations, so they can effectively be generated by a renewal process, (ii) the distribution of intervals between complex spikes exhibits two narrow bands, possibly caused by two oscillatory bands (0.5–1 and 4–8 Hz) in the input to Purkinje cells and (iii) the regularity of regular patterns and single interspike intervals in simple spike trains can be represented by gamma processes of orders, which themselves are drawn from gamma distributions, suggesting that multiple sources modulate the regularity of simple spike trains.
Teacher Practices, Attitudes, and Perceptions About the Decatur Farm to School Program

Title: Teacher practices, attitudes, and perceptions about the Decatur Farm to School Program Purpose: Farm to School (F2S) Programs are increasing in number across the United States, yet research on teachers’ perceptions and practices about F2S is limited. Teachers are a key component of any F2S program, since their acceptance and support influences program implementation and sustainability. The purpose of this study was to examine teacher practices, attitudes, and perceptions about the Decatur F2S Program. Methods: City Schools of Decatur teachers completed a questionnaire designed to obtain information concerning their practices, attitudes, and perceptions regarding the Decatur F2S Program. Participants indicated their level of agreement with 18 statements using a Likert scale rating, answered an open-ended question, and recorded both implemented and desired F2S activities. Cumulative frequencies were determined for all questionnaire items, and themes were extracted for the open-ended question. Results: Seventy percent of K – 12 teachers would like to see F2S activities implemented in their classroom, and 28% of these teachers already implement some F2S activity. The majority of teachers had positive perceptions about the Decatur Farm to School Program’s impact on students, the local economy, and the environment. Teachers perceived that the F2S programs encompassed four themes: 1) supplying schools with locally grown foods; 2) educating children on healthy eating, food, and nutrition; 3) educating children on gardening and growing foods; and 4) building a strong connection between local farms, schools, and communities. Conclusion: There is a high degree of interest and support for the Decatur F2S Program by City Schools of Decatur teachers, which is consistent with efforts to implement F2S Programs across the country. Most teachers were not familiar with the CSD F2S Program but would desire F2S activities in their schools. TEACHER PRACTICES, ATTITUDES, AND PERCEPTIONS ABOUT THE DECATUR FARM TO SCHOOL PROGRAM
Comparison of the Results of Four Users of a Contemporary CAD/CAM System

The objective of this study was to investigate the variation of measurements recorded when four different users of the TracerCAD system trace a model of known dimensions and volume. This complements a previous study where the accuracy and consistency of a single user was measured. Landmarks were added to indicate proximal, distal, anterior, medial and lateral regions of a specially manufactured cylindrical nylon 6.6 model. Four circumferential lines were added at regular intervals along the length of the cylinder with a view to calculating diameters and volumes relative to these landmarks. The model was measured using a comparator with guaranteed accuracy to one hundredth of a millimetre, and was traced using the TracerCAD system by four different users. The difference in mean volume between measured results and TracerCAD scans of differing users ranged to −3%. Individual trace volumes varied by up to −7.85%. In all volumes measured, 11 out of 12 maximum volume percentage differences measured greater than 2%, and of these, seven results showed maximum volume percentage difference to measure greater than 4%.
First approach toward Semantic Role Labeling for Basque

In this paper, we present the first Semantic Role Labeling system developed for Basque. The system is implemented using machine learning techniques and trained with the Reference Corpus for the Processing of Basque (EPEC). In our experiments the classifier that offers the best results is based on Support Vector Machines. Our system achieves 84.30 F1 score in identifying the PropBank semantic role for a given constituent and 82.90 F1 score in identifying the VerbNet role. Our study establishes a baseline for Basque SRL. Although there are no directly comparable systems for English we can state that the results we have achieved are quite good. In addition, we have performed a Leave-One-Out feature selection procedure in order to establish which features are the worthiest regarding argument classification. This will help smooth the way for future stages of Basque SRL and will help draw some of the guidelines of our research.
A hardware accelerator for the IEEE 802.1X-2010 key hierarchy in automotive applications

The increasing complexity of automotive networks has led to broad security issues related to human safety. On the other hand, to solve problems of network overload, the automotive world is moving in the direction of using an Ethernet backbone for in-vehicle communications. Therefore, the security of Ethernet protocols for such applications has become a significant concern. The IEEE 802.1X-2010 standard could be a suitable solution for the key management of Ethernet-based encrypted communications. In this work, an efficient hardware accelerator for the intensive sections of the IEEE 802.1X-2010 is presented. The system was synthesized both on a Stratix V FPGA and on a 40nm standard-cell library. The former gives a usage of 3% of the Adaptive Logic Modules (ALMs) while the latter shows an occupation of 55 kgates. On the FPGA, the maximum throughput is 152 Mbps and 1.14 Gbps for the two considered sections of the standard while the standard-cell technology provides a maximum throughput of 457 Mbps and 3.85 Gbps. Results show that this architecture represents a fast and low-area key management solution for Ethernet networks in automotive applications.
Early Surgery Does Not Seem to Be a Pivotal Criterion to Improve Prognosis in Patients with Frontal Depressed Skull Fractures

Introduction. There has been much debate about the ideal timing of surgery of frontal depressed skull fractures (DSF). In this paper, we assess whether timing of surgery may have influenced outcome. Methods. Retrospective cohort of 40 consecutive patients with frontal DSF who underwent surgical treatment over a 36-month period. The patients were divided into early surgery group (ESG) which were operated within 24 h and delayed surgery group (DSG). Results. The population comprised 39 (97.50%) men and the mean age was 27.9 years (range, 2–81 yr). There was no difference of age (P = 0.53), gender male (P = 1.00), presence of focal lesion on head CT (P = 0.89), hypotension (P = 0.28), and hypoxia (P = 0.15). Mean Glasgow Coma Scale (GCS) was significantly lower in patients of ESG than DSG (8.75 and 11.7, resp., P = 0.02). There was no difference between the groups in relation to death (P = 0.13), unfavourable outcome (P = 0.41), late posttraumatic epilepsy (P = 0.64), and smell-and-taste disturbances (P = 1.00). Only one patient (3.5%) evolved meningitis during follow-up. Conclusion. We found no difference between the ESG and DSG in respect to death, unfavourable outcome, LPE, and STD.
Exchange rate forecasting using echo state networks for trading strategies

Because of the diversity of portfolios based on assets throughout international markets, exchange rate prediction plays an important role in risk management, asset allocation, and trading strategies. This paper aims to investigate the use of a recent paradigm of recurrent neural networks, echo state networks (ESNs), applied to forecasting and trading currency exchange rates. It does so by benchmarking the statistical and trading performance of ESNs against a naïve strategy, an Autoregressive Moving Average (ARMA) model, and a multilayer perceptron neural network. One can interpret ESNs as a recurrent structure that provides both the simplicity of the resulting mathematical model and the ability to express a wide range of nonlinear and time-varying dynamics. As an application, this paper carries out computational experiments that include the Brazilian Real, the European Union Euro, the Japanese Yen, and British Pounds with American Dollar exchange rates from January 4, 2000, through December 31, 2012. The results reveal that the ESN and the ARMA model provide similar results, statistically outperforming the other models in terms of accuracy. However, when trading indicators are considered, the performance of the ESN is superior to that of the alternative approaches.
Bond Strength of Repaired Acrylic Denture Teeth Using Visible Light Cure Composite Resin

Background: Although bonding to denture teeth after surface treatment with chemical agents is desirable, there is little information on the use of Visible Light Cure composite resin (VLC) as bonding denture materials. Objectives: To determine the effect of various surface treatments on shear bond strength between Visible Light Cure composite resin and the acrylic denture teeth interface. Methods: Forty cylindrical sticks of acrylic resin with denture teeth mounted atop were prepared. Various treatments were implemented upon the acrylic resin teeth surfaces. The samples were divided into four groups (n = 10). Light-cured composite resin (LC) was applied over all treated and untreated surfaces of tested groups. The shear bond was tested using a universal tensile testing apparatus with the knife-edge of a 0.8mm shear tester. Data were statistically analyzed using one-way ANOVA performed at a confidence level of 95% and significant P-value of (P ≤ 0.05). Results: Analysis of variance (ANOVA) showed statistically significant difference (P < 0.05) between treated and untreated teeth surfaces. The treated surfaces exhibited various levels of bond strength depending on the type of treatment. Conclusion: Application of VLC bonding agent with prior treatment of methylmethacrylate (MMA) on the acrylic resin denture teeth resulted in maximum bond strength with composite resin.
Interior PM Machines Using Ferrite to Replace Rare-Earth Surface PM Machines

Since the cost of rare-earth permanent magnets (PMs), such as NdFeB and SmCo, is more and more increasing, there is a great interest in designing PM machines without adopting such rare-earth PMs, i.e., replacing them with cheaper ferrite magnets. Referring to the interior PM (IPM) machines, the expected performance reduction is limited owing to the anisotropic structure: The reluctance (REL) torque component compensates for the use of low-energy PMs. This paper investigates the convenience of adopting ferrite magnets in an IPM machine (sometimes also referred to as PM-assisted synchronous REL machine), instead of a rare-earth surface-mounted PM machine. It is shown that, even though a lengthening of the stack length is required, the anisotropic PM machine that adopts ferrite magnets may represent a valid competitor of a surface PM machine with rare-earth PMs.
Hit-and-Run for Sampling and Planning in Non-Convex Spaces

We propose the Hit-and-Run algorithm for planning and sampling problems in non- convex spaces. For sampling, we show the first analysis of the Hit-and-Run algorithm in non-convex spaces and show that it mixes fast as long as certain smoothness conditions are satisfied. In particular, our analysis reveals an intriguing connection between fast mixing and the existence of smooth measure-preserving mappings from a convex space to the non-convex space. For planning, we show advantages of Hit-and- Run compared to state-of-the-art planning methods such as Rapidly-Exploring Random Trees.