Miracle-dz/UniFAR-FTUs huggingface dataset:
Factors Influencing Individual Investors’ Behavior: An Empirical Study of the Vietnamese Stock Market

In this paper, the theory of planned behavior is used as a conception lens to explore the impact of factors influencing individuals’ investment behavioral intention in the Vietnamese stock market together with a decomposed approach to the theory of planned behavior to investigate the level of impact each factor influences individuals’ behavioral intention. A structured questionnaire is used to collect data from individual investors in the Vietnamese stock market. The structural equation modeling is employed with support from AMOS 20.0 software in data analysis. Results found in this research have identified the impact level of the given factors on individuals’ behavioral intention, which support the hypotheses that an individual investor’s investment intention is significantly affected by his attitude towards investment, subjective norm and perceived behavioral control. The study has also provided strong evidences for the existence of psychological factors which supports the hypothesis that four psychological factors (overconfidence, excessive optimism, psychology of risk and herd behavior) do have significant impact on the individuals’ attitude towards investment. Concurrently the study has found the supporting evidence for the argument that gender has a strong interference in the relations between the psychological factors and the attitude towards investment, between the attitude towards investment and behavioral intention, between subjective norms and behavioral intention as well as between perceived behavioral control and behavioral intention of the Vietnamese individual investors. Keywords: Individual investors, psychological factors, behavioral intention, attitude, subjective norm, perceived behavioral control
HISTORICAL GIS DATA AND CHANGES IN URBAN MORPHOLOGICAL PARAMETERS FOR THE ANALYSIS OF URBAN HEAT ISLANDS IN HONG KONG

Rapid urban development between the 1960 and 2010 decades have changed the urban landscape and pattern in the Kowloon Peninsula of Hong Kong. This paper aims to study the changes of urban morphological parameters between the 1985 and 2010 and explore their influences on the urban heat island (UHI) effect. This study applied a mono-window algorithm to retrieve the land surface temperature (LST) using Landsat Thematic Mapper (TM) images from 1987 to 2009. In order to estimate the effects of local urban morphological parameters to LST, the global surface temperature anomaly was analysed. Historical 3D building model was developed based on aerial photogrammetry technique using aerial photographs from 1964 to 2010, in which the urban digital surface models (DSMs) including elevations of infrastructures and buildings have been generated. Then, urban morphological parameters (i.e. frontal area index (FAI), sky view factor (SVF)), vegetation fractional cover (VFC), global solar radiation (GSR), Normalized Difference Built-Up Index (NDBI), wind speed were derived. Finally, a linear regression method in Waikato Environment for Knowledge Analysis (WEKA) was used to build prediction model for revealing LST spatial patterns. Results show that the final apparent surface temperature have uncertainties less than 1 degree Celsius. The comparison between the simulated and actual spatial pattern of LST in 2009 showed that the correlation coefficient is 0.65, mean absolute error (MAE) is 1.24 degree Celsius, and root mean square error (RMSE) is 1.51 degree Celsius of 22,429 pixels.
Metal-tolerant Pseudomonas aeruginosa Strain ZM130 has the Potential for Concurrent Dye Decolorization and Plant Growth Promotion

Dye decolorizing Pseudomonas aeruginosa strain ZM130 was characterized for its potential to decolorize reactive yellow 2 (RY2) dye as well as for its characteristics to promote plant growth under stressed conditions in the presence of a multi-metal mixture (Cr, Pb, Cd and Zn). The bacterial growth and RY2 decolorization by this strain were significantly (p≤0.05) increased when the multi-metal-stressed medium was enriched with yeast extract. The individual and interactive impacts of levels of NaCl, pH and concentration of yeast extract as well as the multi-metal mixture were evaluated following response surface methodology (RSM) modeling based on quadratic polynomial equations. Based on RSM data, optimal decolorization of RY2 was predicted at 14.4 g L NaCl, 7.9 pH, 5.8 g/L yeast extract and a multi-metal mixture (Cr: 11.65 mg/L; Pb: 23.30 mg/L; Cd: 11.65 mg/L; Zn: 23.30 mg/L). This strain also showed a good potential for production of IAA (indole-3-acetic acid) and inorganic phosphorus (P) solubilization in the presence of multi-metal mixture and RY2. Assessment of plant growth promotion in a pot study indicated that the strain ZM130 had the potential to significantly enhance the growth of maize (Zea mays) in normal soil as well as the soil contaminated with multi-metal mixture and RY2. On the basis of its multifarious characteristics, the strain ZM130 is envisaged as a potential bioinoculant to devise the strategies for integrated bioremediation and plant growth promotion in agricultural soils contaminated with textile wastewaters. © 2018 Friends Science Publishers
Small-Scale Structure of the SN 1006 Shock with Chandra Observations

The northeast shell of SN 1006 is the most probable acceleration site of high-energy electrons (up to ~100 TeV) with the Fermi acceleration mechanism at the shock front. We resolved nonthermal filaments from thermal emission in the shell with the excellent spatial resolution of Chandra. The thermal component is extended over ~100'' (about 1 pc at 1.8 kpc distance) in width, consistent with the shock width derived from the Sedov solution. The spectrum is fitted with a thin thermal plasma of kT = 0.24 keV in nonequilibrium ionization, typical for a young supernova remnant. The nonthermal filaments are likely thin sheets with scale widths of ~4'' (0.04 pc) and ~20'' (0.2 pc) upstream and downstream, respectively. The spectra of the filaments are fitted with a power-law function of index 2.1-2.3, with no significant variation from position to position. In a standard diffusive shock acceleration model, the extremely small scale length in the upstream region requires the magnetic field nearly perpendicular to the shock normal. The injection efficiency (η) from thermal to nonthermal electrons around the shock front is estimated to be ~1 × 10-3 under the assumption that the magnetic field in the upstream region is 10 μG. In the filaments, the energy densities of the magnetic field and nonthermal electrons are similar to each other, and both are slightly smaller than that of thermal electrons. These results suggest that the acceleration occurs in more compact regions with larger efficiency than suggested by previous studies.
Exploring conceptual frameworks of models of atomic structures and periodic variations, chemical bonding, and molecular shape and polarity: a comparison of undergraduate general chemistry students with high and low levels of content knowledge

The purpose of the study was to explore students’ conceptual frameworks of models of atomic structure and periodic variations, chemical bonding, and molecular shape and polarity, and how these conceptual frameworks influence their quality of explanations and ability to shift among chemical representations. This study employed a purposeful sampling technique and used three diagnostic instruments for conceptual understanding to determine the students’ level of content knowledge of the related concepts. Six student interviews were analyzed to portray students’ conceptual frameworks in high and low content knowledge (HCK and LCK, respectively) groups. The study’s major findings revealed that moving from a high toward a low level of content knowledge, the quality of students’ explanations declined, as did their ability to reconcile new information to their existing knowledge frameworks. Three essential concepts – models of atomic structure, effective core charge and principles of electrostatic force, and quantum mechanics descriptions – were identified that may explain students’ failure to learn the necessary aspects of molecular geometry and polarity. This study provides empirical evidence of how students’ content knowledge influences their understanding about molecular polarity. The findings have implications for college chemistry education with respect to teaching concepts about molecular polarity.
Synthetic In Vitro Delivery Systems for Plasmid DNA in Eukaryotes

Success for gene therapy clinical protocols depends on the design of safe and efﬁcient gene carriers. Nature had already designed efﬁcient DNA or RNA delivery devices, namely virus particles. However, they have a propensity to trigger neutralizing and other immune responses and insertional mutagenesis have limited their clinical use. Alternatively, safer approaches involving non-viral carriers have been and continue to be developed although they have not reached the transfection levels achieved by viruses. Those methods can be broadly classiﬁed into two categories: chemical and physical methods. In this review we present the most common and recent chemical non-viral methods to introduce, in vitro , pDNA into eukaryotic cells.
How Do Different Motives for R&D Investment in Foreign Locations Affect Domestic Firm Performance? An Analysis Based on Swiss Panel Micro Data

The aim of this article is to investigate the differences between specific motives of R&D investment in foreign locations with respect to the factors influencing the likelihood of foreign R&D and to the impact of foreign presence on the parent firms’ innovativeness and productivity. An econometric analysis of Swiss firm panel data shows, firstly, that factors related to firm-specific knowledge-oriented advantages are more important for explaining the likelihood of foreign R&D activities than factors reflecting disadvantages related to home location. Secondly, knowledge-oriented motives of foreign R&D are positively correlated to innovation performance of domestic firms, whereas market-oriented and resource-oriented strategies correlate positively with productivity.
Perceptions of pedagogical practices of physical education teachers in Portugal since the 1970s

The aim of this study is to analyse how Physical Education teachers in Portugal organise their lessons, taking into consideration the most valued lesson models. Moreover, we sought to understand the existing relationship between those practices, their experiences, attitudes and the influence of training schools, ie, the existing relationship between pedagogical work and a habitus, seen as a product of history and a defining principle of group and individual practices learned empirically in specific contexts. Based on a qualitative methodology, the study focused on a group of fifteen teachers with varied degrees in Physical Education, who graduated from some of the most distinguished schools in Portugal, for e.g., the National Institute of Physical Education, Colleges of Physical Education, and some of the most famous Portuguese faculties in this field of study established in the early 1990s. We concluded that these teachers defend the use of well structured classes, based on strict planning, not neglecting students’ motivations. Moreover, that the existence of different pedagogical practices (and attitudes) is possible due to different training, to the specific historical context and different experiences, personalities and motivations of each teacher. These differences suggest, therefore, there is a relationship between pedagogical practices and a habitus, which means experiences acquired in different cultural, political and educational environments.
Secondary charging effects due to icy dust particle impacts on rocket payloads

Abstract. We report measurements of dust currents obtained with a small probe and a larger probe during the flight of the ECOMA-4 rocket through the summer polar mesosphere. The payload included two small dust probes behind a larger dust probe located centrally at the front. For certain phases of the payload rotation, the current registered by one of the small dust probes was up to 2 times the current measured with the larger probe, even though the effective collection area of the larger probe was 4 times that of the small one. We analyze the phase dependence of the currents and their difference with a model based on the assumption that the small probe was hit by charged dust fragments produced in collisions of mesospheric dust with the payload body. Our results confirm earlier findings that secondary charge production in the collision of a noctilucent cloud/Polar Summer Mesospheric Echo (NLC/PMSE) dust particle with the payload body must be several orders of magnitude larger than might be expected from laboratory studies of collisions of pure ice particles with a variety of clean surfaces. An important consequence is that for some payload configurations, one should not assume that the current measured with a detector used to study mesospheric dust is simply proportional to the number density of ambient dust particles. The higher secondary charge production may be due to the NLC/PMSE particles containing multiple meteoric smoke particles.
The Predictive Relationship Between Exchange Rate Expectations and Base Metal Prices

In this paper we show that survey-based-expectations about the future evolution of the Chilean exchange rate have the ability to predict the returns of the six primary non-ferrous metals: aluminum, copper, lead, nickel, tin and zinc. Predictability is also found for returns of the London Metal Exchange Index. Previous studies have shown that the Chilean exchange rate has the ability to predict copper returns, a world commodity index and base metal prices. Nevertheless, our results indicate that expectations about the Chilean peso have stronger predictive ability relative to the Chilean currency. This is shown both in-sample and out-of-sample. By focusing on expectations of a commodity currency, and not on the currency itself, our paper provides indirect but new and strong evidence of the ability that commodity currencies have to forecast commodity prices. Our results are also consistent with the present-value-model for exchange rate determination.
On the assessment of passive devices for structural control via real‐time dynamic substructuring

In this work, the applicability of a dynamic testing technique known as real‐time dynamic substructuring (RTDS) for the assessment of passive vibration suppression systems in seismic protection of buildings is analysed. RTDS is an efficient method for the assessment of dynamic and rate‐dependent behaviour of systems subjected to dynamic excitation at real scale and in real scenarios. The actuators used in RTDS test introduce additional undesirable dynamics into the system, which are often not fully compensated for in the actuator controller—these dynamics are commonly approximated as a feedback delay. To guarantee the validity and accuracy of an RTDS simulation, a stability analysis of the substructured system that includes the feedback delay should be carried out. In this paper, we present explicit analyses that provide a dynamic characterization of the delay‐induced phenomena in RTDS simulations when considering passive vibration suppression systems with strong nonlinearities. We present a complete set of closed‐form expressions to describe the main phenomena because of delay in terms of dynamic stability in an RTDS simulation. Through an experimental study, we confirm the existence of self‐sustained oscillations caused by very small delay in the feedback loop. This lead the system to instability in the form of high‐frequency oscillations. Copyright © 2011 John Wiley & Sons, Ltd.
Chemical recognition of reproductive status in social insects

Inclusive fitness theory explains how helpers reproduce indirectly via the breeders they help. The inclusive fitness helpers get depends on their relatedness to the breeder(s), colony productivity and fertility of the breeder(s). It is therefore critical for workers to assess breeder fertility. There is strong evidence that, in wasps, bees and ants, the cuticular hydrocarbon (CHC) profiles of breeders are a signal of fertility. Chemical and behavioural evidence suggests that linear alkanes are not involved in communication, whereas methyl-branched alkanes and alkenes may constitute, or at least contribute to, the fertility signal. The correlation between CHCs and reproduction is well established, as well as the fact that CHCs are detected and that workers react accordingly. However, whether CHC profiles are honest is yet to be demonstrated. Hormonal and genetic studies, such as inactivating genes regulating the production of alkenes, are promising approaches to investigate the honesty of CHC profiles.
Diversity and Copepods’composition off Moroccan Atlantic Coast (Northwest Africa): A Review

This overview sums up the results of main investigations and knowledge about zooplankton off Moroccan Atlantic coast. Copepods diversity, spatial distribution, seasonal variability and hydrology off Moroccan Atlantic coast are given. A compilation of taxonomic list of copepods’ species found therein was established from published studies, they accounted for 210. Diversity and richness varied strongly between seasons, an onshore offshore gradient was observed as well. Species composition differed from northern to southern Moroccan Atlantic coast although most dominant species off Morocco’s coasts were Calanus helgolandicus, Paracalanus parvus, Acartia clausi and Corycaeus typicus. In addition, the largest number of species was found in upwelling regions. A synthesis study was established in order to spatial distribution of copepods along Moroccan Atlantic coast. The Factorial Correspondence Analysis of copepod species characterizing the most important sectors has shown different patterns of copepods distribution across Moroccan Atlantic coast; three main areas were clearly segregated according to their taxonomic composition (Northern, Central and Southern Atlantic).
Scaling entropy and automorphisms with purely point spectrum

We study the dynamics of the metrics generated by measure preserving transformations. We consider a sequence of average metrics and define the corresponding sequence of $\epsilon$-entropies ({\it scaling sequence}) of the measure with respect to the mean metrics. The main result claims that scaling sequences of an automorphism with respect to any {\it admissible metric} is bounded if and only if the automorphism has discrete spectrum. This gives a non-spectral criterion of the discreteness of the spectrum of an automorphism. The related result was discussed in \cite{Fe} but our approach is different. This article is one in the series of papers about asymptotic theory of sequences of the metric compacts with measure and its role in dynamics.
SImulator of GAlaxy Millimetre/submillimetre Emission (sígame): CO emission from massive z = 2 main-sequence galaxies

We present SIGAME (SImulator of GAlaxy Millimetre/submillimetre Emission), a new numerical code designed to simulate the 12CO rotational line emission spectrum of galaxies. Using sub-grid physics recipes to post-process the outputs of smoothed particle hydrodynamics (SPH) simulations, a molecular gas phase is condensed out of the hot and partly ionized SPH gas. The gas is subjected to far-UV radiation fields and cosmic ray ionization rates which are set to scale with the local star formation rate volume density. Level populations and radiative transport of the CO lines are solved with the 3-D radiative transfer code LIME. We have applied SIGAME to cosmological SPH simulations of three disc galaxies at z=2 with stellar masses in the range ~(0.5-2)x10^11 Msun and star formation rates ~40-140 Msun/yr. Global CO luminosities and line ratios are in agreement with observations of disc galaxies at z~2 up to and including J=3-2 but falling short of the few existing J=5-4 observations. The central 5 kpc regions of our galaxies have CO 3-2/1-0 and 7-6/1-0 brightness temperature ratios of ~0.55-0.65 and ~0.02-0.08, respectively, while further out in the disc the ratios drop to more quiescent values of ~0.5 and =3 and CO-to-H2 conversion factors [~=3.6 Msun*pc^2/(K km/s)].
Discrete-To-Continuum Limits of Particles with an Annihilation Rule

In the recent trend of extending discrete-to-continuum limit passages for gradient flows of single-species particle systems with singular and nonlocal interactions to particles of opposite sign, any annihilation effect of particles with opposite sign has been side-stepped. We present the first rigorous discrete-to-continuum limit passage which includes annihilation. This result paves the way to applications such as vortices, charged particles, and dislocations. In more detail, the discrete setting of our discrete-to-continuum limit passage is given by particles on the real line. Particles of the same type interact by a singular interaction kernel; those of opposite sign interact by a regular one. If two particles of opposite sign collide, they annihilate, i.e., they are taken out of the system. The challenge for proving a discrete-to-continuum limit is that annihilation is an intrinsically discrete effect where particles vanish instantaneously in time, while on the continuum scale the mass of the particle density decays continuously in time. The proof contains two novelties: (i) the observation that empirical measures of the discrete dynamics (with annihilation rule) satisfy the continuum evolution equation that only implicitly encodes annihilation, and (ii) the fact that, by imposing a relatively mild separation assumption on the initial data, we can identify the limiting particle density as a solution to the same continuum evolution equation.
The Impact of Video Self-Reflection on Teacher Practice

The purpose of this research study was to analyze the teacherâ€™s ability to utilize video self-reflection as a structured learning tool to enhance their teaching practice and CLASS scores. Research has demonstrated that teachers are better able to be self-reflective when provided with a framework (Calandra, Gurvitch, & Lund, 2008). Literature has documented video self-reflection and CLASS as links for growth in children and professional development support for teachers (Pianta, Mashburn, Downer, Hammer, & Justice, 2008). Results from the present study indicated that the teachers became increasingly aware of the CLASS Toddler tool criteria through scoring their own behaviors, which impacted their instructional practices with children and led to increase reliability in scoring and increased CLASS scores.