Miracle-dz/UniFAR-FTUs huggingface dataset:
Stock Prices, Home Prices, and Private Consumption in the US: Some Robust Bilateral Causality Tests

We perform robust bilateral Granger causality tests for the US stock prices, home prices, and private consumption. The robust test procedures involve the use of recently developed time series analysis of non-stationary data with possible structural breaks. We find the underlying data to be generally non-stationary and non-cointegrated. The empirical results indicate the presence of bilateral causality between stock prices and home prices and between stock prices and consumer spending. The results show unilateral causality from home prices to consumer spending. Our findings support the reinforcing effects of stock and home price movements on private consumption, as well as the feedback effect of consumer spending on stock prices.
Optimization of elm regeneration in vitro using leaf explants and evaluation of the process in transformation experiments

Se ha desarrollado un procedimiento para la regeneracion del olmo hibrido «Sapporo» resistente a la grafiosis mediante el uso de discos foliares procedentes de plantas cultivadas in vitro y examinadas en ensayos de transformacion. Para ello se requirieron dos pasos: induccion de las yemas (3 semanas), seguido de la elongacion de las yemas (4 semanas). Los meristemas que dieron origen a las yemas se formaron en la cercania de las costillas de corte a partir de diversos tejidos (floema, procambium, parenquima) excepto la epidermis. La regeneracion dependio del uso de agarosa (6 g/l LSM) y de medio MS diluido (1/2). Los mejores resultados (11-14 yemas por explante) se obtuvieron en presencia de 0,1 μM de TDZ y 0,06 μM de IAA y cuando la maltosa (55-110 mM) o el sorbitol (110 mM) se usaron como fuente de carbohidratos. Durante la elongacion del tallo, el TDZ hubo de ser disminuido a 0,01 μM o sustituido por 1-2 μM de BAP y 1,4 μM de GA3. En esta fase fue necesaria una mezcla de 55 mM de sorbitol y 27,5 mM de maltosa. Se desarrollaron al menos 7 tallos por explante que facilmente enraizaron (96%) y se aclimataron cuando se anadio sorbitol (27,5 mM) y carbon activo (2 g/l) al medio de enraizamiento. Los ensayos de transformacion se desarrollaron con las cepas GV3101-pMP90 (pKyGUSintron) de Agrobacterium tumefaciens. Las zonas de regeneracion presentaron una expresion GUS estable. No obstante, todas las yemas cultivadas in vitro murieron en un medio selectivo de enraizamiento (50 mg/l de kanamicina). Cuando se intento la seleccion in vitro (12,5 mg/l de kanamicina), algunas yemas se iniciaron pero la elongacion fue impedida. La susceptibilidad a la neomicina parece ser muy alta, por lo que los marcadores y los pasos de seleccion deben ser cuidadosamente revisados.
Nonlinear theory of transverse beam echoes

Transverse beam echoes can be excited with a single dipole kick followed by a single quadrupole kick. They have been used to measure diffusion in hadron beams and have other diagnostic capabilities. Here we develop theories of the transverse echo nonlinear in both the dipole and quadrupole kick strengths. The theories predict the maximum echo amplitudes and the optimum strength parameters. We find that the echo amplitude increases with smaller beam emittance and the asymptotic echo amplitude can exceed half the initial dipole kick amplitude. We show that multiple echoes can be observed provided the dipole kick is large enough. The spectrum of the echo pulse can be used to determine the nonlinear detuning parameter with small amplitude dipole kicks. Simulations are performed to check the theoretical predictions. In the useful ranges of dipole and quadrupole strengths, they are shown to be in reasonable agreement.
Wisdom of the Crowd

On a daily basis people and institutions are forced to make optimal choices, provide correct solutions to many times very complex tasks and predict future outcomes. Since individual answers tend to suffer from random errors in judgment, it is frequently better to rely on mathematical combination of people’s opinions in order to make the best decision. This approach, which is academically called the wisdom of the crowd, lowers the random error and delivers an accurate answer that is most of the times better than any individual guess. In this thesis I compare the performance of three aggregation methods withing the crowd wisdom concept: a simple average (SA), a surprisingly popular answer algorithm (SPA) and a contribution weighted model (CWM). Besides that I also conduct a supplementary research including the BTS score performance comparison, regression of the CWM score on the BTS score and an analysis of cheating behavior. By means of paper and online quiz about general knowledge questions I collect data, compare the outcomes of the models and conduct several robustness checks. The main findings of the paper show that both the SPA and the CWM perform significantly better than the SA for large samples, however, the results are more robust for the SPA/SA case. Moreover, there is no difference in the performance of the SPA and the CWM. Therefore, I conclude that the SPA is the most appropriate for general use as it has less requirements regarding the type and the number of the questions than the CWM and its good performance is more robust. Finally, further research should be focused on better incentivization of subjects so that more questions can be used for the analysis. JEL Classification D70, D90
The Relation Of High-Performance Work Systems With Employee Involvement

The basic aim of high performance work systems is to enable employees to exercise decision making, leading to flexibility, innovation, improvement and skill sharing. By facilitating the development of high performance work systems we help organizations make continuous improvement a way of life.The notion of a high-performance work system (HPWS) constitutes a claim that there exists a system of work practices for core workers in an organisation that leads in some way to superior performance. This article will discuss the relation that HPWS has with the improvement of firms’ performance and high involvement of the employees.
La insuficiencia de la Ley de Transparencia para el ejercicio del Periodismo de datos en España

espanolIntroduccion. La incorporacion de elementos de la cultura de la transparencia de la era del Big Data en el periodismo ha dado como resultado lo que se conoce como periodismo de datos (PD). Objetivos. Al depender de instituciones fuera del periodismo, buscamos determinar hasta que punto ha afectado la Ley de Transparencia espanola el desarrollo del PD y como ha respondido este sector profesional ante estas afecciones. Metodologia. Con entrevistas en profundidad a periodistas de datos examinamos que elementos de la ley afectan el desarrollo del PD. A traves de un analisis de contenido en medios con unidades de datos, determinamos como responde el sector ante estos elementos que le afectan. Resultados y conclusiones. El PD en Espana no ha alcanzado su potencial debido a la insuficiencia e incumplimiento de la ley, por lo que los periodistas han posicionado la transparencia como tema fundamental en la agenda publica. EnglishIntroduction: Incorporating elements of the transparency‘s culture of the Big Data era in journalism has become into what is known as Data Journalism (DJ). Objectives: Since it depends on institutions outside journalism, we seek to determine to what extent the Spanish Transparency Law has affected the development of DJ and how this professional sector has responded to these affections. Methodology. We examined what elements of the Law affects DJ with in-depth interviews to data journalists. Through a Content Analysis in medias with data units, we determined how this sector has replied to these elements that affects them. Results and Conclusions. DJ in Spain hasn‘t reach its potential because of the insufficiency of the Law and its breach, which is why journalists have placed Transparency in the Public Agenda as a main theme.
The psychometric properties of a Scale for Achievement Motive in Rehabilitation, and the effects of achievement motive on self-efficacy, hopelessness, and economic poverty for community-dwelling elderly people using rehabilitation services

The psychometric properties of a Scale for Achievement Motive in 1 Rehabilitation, and the effects of achievement motive on 2 self-efficacy, hopelessness, and economic poverty for 3 community-dwelling elderly people using rehabilitation services 4 5 6 Authors: 7 Nobuyuki Sano1 Makoto Kyougoku2 8 Affiliations: 9 1 Kibi International University of Japan Health Welfare Laboratory, 10 Takahashi, Okayama, Japan 11 2 Department of Occupational Therapy, School of Health Sciences and Social 12 Welfare, Kibi International University, Takahashi, Okayama, Japan 13 Nobuyuki Sano is an associate researcher of Kibi International University of 14 Japan Health Welfare Laboratory. 15 Corresponding author: 16
Working with Fathers around Domestic Violence: Contemporary Debates

This article discusses the issues that emerged from a small consultation exercise with academics and practitioners in the field of domestic violence on their perceptions of practice interventions with fathers who were domestically violent. The exercise suggests thatthere has beena growthinsuch interventionsespecially inthe UKover the lastdecade as a result of the recognition of domestic violence as a child protection issue. There are tensions, however, and these mapped onto tensions between interventions located in working with perpetrators and more recent interventions that have a focus on fathers. More importantly, tensions about what kinds of practice interventions were most desirable were linked to wider debates within practice about the merits of set programmes versus more individualised responses. Respondents expressed concern about the lack of evidence on effectiveness on programmes. Copyright © 2012 John Wiley & Sons, Ltd. KEY PRACTITIONER MESSAGES:
Assay of Antioxidant Capacity and Phenolic Compounds in some Romanian and Cypriot Wine

Free radicals have an important role in food and in chemical material degradation, contributing to the occurrence of many human health problems, but the antioxidants can considerably delay or prevent the oxidation of easily oxidable substrates. The present research aimed to assess the antioxidant activity, expressed by the presence of polyphenols, flavonols, flavones, anthocyanidins and flavanols, in several Romanian and Cypriot wines. The wine phenolics content was analysed by high-performance liquid chromatograph (HPLC) Shimadzu equipped with two chromatographic columns. Higher concentrations were registered in all red wines. The antioxidant activity quantification was carried out by the DPPH method, a simple and cheap approach based on the absorbance decrease determination of the DPPH radical (2,2-diphenyl- 1- picrylhydrazyl) in the presence of antioxidants. The highest antioxidant activity for white wines was determined at ‘Spouriko’ for Cypriot wine from 2013 (EC 50 = 1/38) while for Romanian wines, the highest value was found in a ‘Tămâioasă românească’ (EC50 = 1/58) and for red wines at ‘Maratheftiko’ wine from 2012 (EC50 = 1/680) and in ‘Fetească Neagră’ wine from 2014 (EC50 =1/590). This study provides relevant information to consumers and industry alike regarding the beneficial role wine plays for human health. It also can act as a baseline for choosing a certain product, according to its sanogenic potential.
Molecular‐Level Dispersion of Graphene into Poly(vinyl alcohol) and Effective Reinforcement of their Nanocomposites

Despite great recent progress with carbon nanotubes and other nanoscale fillers, the development of strong, durable, and cost‐efficient multifunctional nanocomposite materials has yet to be achieved. The challenges are to achieve molecule‐level dispersion and maximum interfacial interaction between the nanofiller and the matrix at low loading. Here, the preparation of poly(vinyl alcohol) (PVA) nanocomposites with graphene oxide (GO) using a simple water solution processing method is reported. Efficient load transfer is found between the nanofiller graphene and matrix PVA and the mechanical properties of the graphene‐based nanocomposite with molecule‐level dispersion are significantly improved. A 76% increase in tensile strength and a 62% improvement of Young's modulus are achieved by addition of only 0.7 wt% of GO. The experimentally determined Young's modulus is in excellent agreement with theoretical simulation.
Lossless DNG-DPS Bilayer Structures for Tunneling and Zero Re∞ection

Distributions of the electromagnetic fleld and power ∞ux inside and outside of a lossless DNG-DPS bilayer structure are investigated by the Transmission Line Transfer Matrix Method (TLTMM) and appropriate conditions are determined that under which complete wave tunneling occurs with no re∞ection at any angle of incidence and at all frequencies. This structure may have applications in antenna radomes.
Examining the Effect of Our World Exhibit on Student Visitors: A Science Center Case.

This study is about the effect of the Our World exhibit at a science center on student visitors. It elicits students’ views about the exhibits, zones, and activities, along with their level of interest and experiences. Data from students (n=346) through a survey, field notes, observations and interviews (n=18) were collected. The findings indicated that curiosity and interest were triggers for visiting the exhibits at the center. Visiting the exhibits helped students acquire science content knowledge. However, limited social interaction was observed among the student groups due to the control of tour guides within a limited period of time. It was concluded that time restriction and crowding played a crucial role in learning about science at the center. It was recommended to allocate more time for free visits, organize smaller group visits, and repair setups under maintenance in order to enhance the effect of the exhibits on students.
Reliable flows and preferred patterns in food webs

We analyse the structure of food webs from a reliability theoretical point of view. The reliability of the network Xow is the probability that sources are connected to sinks. With a Wxed number of species and connectance, reliability depends on the pattern of links. We construct all of the possible sink web graphs with given numbers of species and links and calculate the reliability of the network Xow for each hypothetical sink web. Patterns favourable for reliable Xows are characterized. Having compared our results with real web data, we conclude that the structure of natural webs contains mostly such patterns. Thus, the reliability of the network Xow seems to be an important factor governing food web structure. Our results show that short chains, a high level of omnivory, a high prey‐predator ratio and a low number of specialists are favourable for reliable network Xows. These conclusions support the reticulate nature of food webs and the rethinking of the traditional, linearized view.
Adiabaticity in nonlinear quantum dynamics: Bose-Einstein condensate in a time-varying box

A simple model of an atomic Bose-Einstein condensate in a box whose size varies with time is studied to determine the nature of adiabaticity in the nonlinear dynamics obtained within the Gross-Pitaevskii equation (the nonlinear Schr\"odinger equation). Analytical and numerical methods are used to determine the nature of adiabaticity in this nonlinear quantum system. Criteria for validity of an adiabatic approximation are formulated.
RENDIMIENTO Y CALIDAD NUTRIMENTAL DE FRIJOL EJOTERO (Phaseolus vulgaris L.) EN

)) en la del 1 de julio. El ejote fresco mostro los valores mas altos en cenizas (9 %), fosforo (0.13 %), fibra detergente acido (22 %), lignina (8.3 %), proteina (28.9 %) y grasa (0.88 %) en la siembra temprana del 2 mayo; en la siembra tardia del 1 de julio observaron los valores mas altos en calcio (1.8 %), carbohidratos solubles (47 %), fibra detergente neutro (27.7 %), hemicelulosa (12.3 %) y materia organica (93.8 %). La conservacion del ejote congelado y al vacio por seis meses no afecto su contenido de proteina. Palabras clave: Phaseolus vulgaris, calidad nutricional, fechas de siembra, rendimiento. SUMMARY
Secondary school as a context for expressing and developing creativity

У раду се приказују резултати испитивања уверења наставника о испољавању и развоју креативности на средњошколском нивоу. Анализа вођене дискусије са десет наставника једне гимназије издвојила је као битне аспекте наставникових уверења њихово виђење природе креативности, капацитета школе да подржи креативност ученика и услова за подстицање креативности у школи. Већина наставника изразила је уверење да је креативност сложен феномен чије разумевање захтева мултиперспективни приступ. Иако само део наставника верује у дистрибутивност креативности, преовладало је уверење да школа може да подстиче креативност ученика, али да то не чини у довољној мери. Међу факторима који подржавају креативност издвојени су: ангажовање наставника, специфичности наставних предмета, примена одређених наставних метода и имиџ школе. Међу факторима који ометају креативност наведени су: прописани наставни план и програм, селекција ученика, одлике генерације младих и актуелне друштвене вредности. У закључку су разматране импликације резултата испитивања за унапређење школске праксе.
Accuracy requirements to test the applicability of the random cascade model to supersonic turbulence

A model, which is widely used for inertial rang statistics of supersonic turbulence in the context of molecular clouds and star formation, expresses (measurable) relative scaling exponents Z_p of two-point velocity statistics as a function of two parameters, beta and Delta. The model relates them to the dimension D of the most dissipative structures, D=3-Delta/(1-beta). While this description has proved most successful for incompressible turbulence (beta=Delta=2/3, and D=1), its applicability in the highly compressible regime remains debated. For this regime, theoretical arguments suggest D=2 and Delta=2/3, or Delta=1. Best estimates based on 3D periodic box simulations of supersonic isothermal turbulence yield Delta=0.71 and D=1.9, with uncertainty ranges of Delta in [0.67, 0.78] and D in [2.04,1.60]. With these 5-10\% uncertainty ranges just marginally including the theoretical values of Delta=2/3 and D=2, doubts remain whether the model indeed applies and, if it applies, for what values of beta and Delta. We use a Monte Carlo approach to mimic actual simulation data and examine what factors are most relevant for the fit quality. We estimate that 0.1% (0.05%) accurate Z_p, with p=1.5, should allow for 2% (1%) accurate estimates of beta and Delta in the highly compressible regime, but not in the mildly compressible regime. We argue that simulation-based Z_p with such accuracy are within reach of today's computer resources. If this kind of data does not allow for the expected high quality fit of beta and Delta, then this may indicate the inapplicability of the model for the simulation data. In fact, other models than the one we examine here have been suggested.
Sequence Analysis of Ethylene Response Sensor Gene Isolated from Vanda Miss Joaquim Flower

Aspecificethylenereceptorproteinisamajorkeyforethyleneperceptionintoplanttissues. � Thus, the Ethylene Response Sensor (ERS)�genewasisolatedfromtheethylene-sensitiveflowersof� Vanda Miss Joaquim and its deduced ethylene response sensor (ERS) was aligned with three other reportedorchidERSgenestoidentifythespecificdivergenceinorchidethylenereceptorproteins. � The results from multiple alignment showed that the amino acid sequence of the Vanda ERS was 95% identical to Phalaenopsis ERS (the ethylene-sensitive species), but shared 90-91% identity with the ERS isolated from two ethylene-insensitive orchid species, Dendrobium hybrid Khao Sanan and Oncidium Gower Ramsey. The most conserved regions were located at the N-terminus of the polypeptide being three transmembrane hydrophobic regions; however, the most variable regions, particularly for the Dendrobium ERS and Oncidium ERS, were located in the ATP-binding site of the histidine kinase domain and the amino acid sequence of the downstream histidine kinase domain at the C-terminus. The findingssuggestthesequencesimilarityintheATP-bindingsitecanbeusedtodistinguishtheclosely� related ERS proteins. In considering the level of ERS gene expression, there was an abundance of ERS transcript accumulation in fully opened Vanda MissJoaquimflowers� (particularlyinthecolumnand� the lip followed by the perianth tissue) compared with root and leaf tissues.
Short-Run and Long-Run Causality between Monetary Policy Variables and Stock Prices

The authors examine simultaneously the causal links connecting monetary policy variables, real activity, and stock returns. Their interest lies in the fact that the dynamics of asset prices can provide key insights--in terms of information--for the conduct of monetary policy, since asset prices constitute a class of potentially leading indicators of either economic activity or inflation. This is of particular interest in the context of an inflation-targeting regime, where the monetary policy stance is set according to inflation forecasts. While most empirical studies on causality have examined this issue using Granger's (1969) original definition, the authors examine the causality relations through the generalization proposed in Dufour and Renault (1998). For the United States, the authors find no support for stock returns as a leading indicator of the macroeconomic variables considered, or for stock returns being influenced by those macroeconomic variables, except for one case: fluctuations in M1 tend to anticipate fluctuations in stock returns. Furthermore, the authors' empirical methodology allows them to infer that monetary aggregates may have significant predictive power for income and prices at longer horizons. It is therefore incorrect to dismiss the importance of monetary aggregates based on the usual Granger causality criteria. The causality pattern inferred by the authors' procedure is consistent with the Phillips curve (for the inflation dynamics) and with the Taylor rule in the case of the interest rate. For Canada, the results are much different. The authors show that there is a potential role for asset prices as a predictor of some important macroeconomic variables, namely interest rates, inflation, and output at policy-relevant horizons. Furthermore, some measures of monetary aggregates tend to dominate the interest rate as robust causal variables for output growth and inflation. However, the authors do not find strong evidence in favour of the Phillips curve and the Taylor rule. Finally, for both Canada and the United States, the authors show that seasonal adjustments can highly distort the inferred causality structure.
CONDITIONAL TRANSFORM WITH RESPECT TO THE GAUSSIAN PROCESS INVOLVING THE CONDITIONAL CONVOLUTION PRODUCT AND THE FIRST VARIATION

In this paper, we define a conditional transform with respect to the Gaussian process, the conditional convolution product and the first variation of functionals via the Gaussian process. We then examine vari- ous relationships of the conditional transform with respect to the Gauss- ian process, the conditional convolution product and the first variation for functionals F in S� (5, 8).