Miracle-dz/UniFAR-FTUs huggingface dataset:
Trader personality and trading performance : A framework and financial market experiment

To date, the main source of inspiration for behavioral finance scholars has been cognitive psychology. Cognitive psychology offers a rich set of insights into human decision-making, and the biases that tend to influence it. Such biases provide important reasons as to why anomalies may characterize financial market behavior. This study builds on this tradition by merging in insights from yet another psychology sub-discipline: personality psychology. We argue that a human beingâ€™s personality is a key determinant of her behavior and performance. We illustrate, for a limited subset of six personality traits (locus of control, maximizing tendency, regret disposition, self-monitoring, sensation seeking and type-A/B behavior), how this logic can be applied in the context of the study of trader behavior and performance. We explore this line of reasoning in an illustrative asset market experiment, involving 34 economics students. The results suggest that different personality traits affect distinct components of trading behavior, and so trading performance. In particular, more relaxed types who are more susceptible to regret trade less frequently (a performance enhancing strategy). Impatient, urgency-driven types with low sensitivity for environmental cues tend towards the disadvantageous price-taker role (accepting limit orders posted by other traders) and exhibit a lower tendency towards exploiting arbitrage opportunities.
Ferric chelate reduction by sunflower (Helianthus annuus L.) leaves: influence of light, oxygen, iron-deficiency and leaf age

The presence of ferric chelate reducing activity in sunflower (Helianthus annuus L.) leaves has been studied by submerging leaf discs in a solution with Fe(III)-ethylenediaminetetra-acetate (FeEDTA), bathophenanthroline disulphonate (BPDS) and vacuum infiltration. The effect of different factors on the Fe(III) reduction rate was studied. Ferric reduction rate was about 10-fold higher in the light than in darkness. The light effect was greatly inhibited by 3-(3,4-dichlorophenyl)-1,1-dimethylurea (DCMU), a photosystem II inhibitor. Several inhibitors of redox systems [cis-platinum (II) diamine dichloride (cis-platin), p-nitrophenylacetate (p-NPA) and p-hydroxymercuribenzoic acid (pHMB)] decreased the FeEDTA reduction rate. The greatest inhibition was produced by the -SH group reagent pHMB (17% of control, in light). The FeEDTA reduction rate was much higher in the absence of O 2 than with air or 100% O 2 . Superoxide dismutase (SOD) decreased FeEDTA reduction with air in the light. Young leaves reduced Fe(III)-chelate at a higher rate than did older leaves. In iron-deficient plants, leaves did not exhibit enhanced ferric chelate-reducing activity as was observed in roots. It is suggested that at least two different redox systems or two states of the same redox system work in the light and in darkness.
Tight-binding model for carbon nanotubes from ab initio calculations

Here we present a parametrized tight-binding (TB) model to calculate the band structure of single-wall carbon nanotubes (SWNTs). On the basis of ab initio calculations we fit the band structure of nanotubes of different radii with results obtained with an orthogonal TB model to third neighbors, which includes the effects of orbital hybridization by means of a reduced set of parameters. The functional form for the dependence of these parameters on the radius of the tubes can be used to interpolate appropriate TB parameters for different SWNTs and to study the effects of curvature on their electronic properties. Additionally, we have shown that the model gives an appropriate description of the optical spectra of SWNTs, which can be useful for a proper assignation of SWNTs’ specific chirality from optical absorption experiments.
Correlation between germinal vesicle and oocyte development in the adult Japanese quail (Coturnix coturnix japonica). A cytochemical and autoradiographic study.

SUMMARY Continuity in the various developmental stages of the oocytes in the adult laying Japanese quail may be demonstrated with a method of whole stock labelling of their nuclei by successive applications of [ 3 H]thymidine during their premeiotic period. Before they mature, the intraovarian oocytes of the adult Japanese quail go through three important successive stages. In each of these stages the chromosomes have a distinct morphology and cytochemical behaviour. During the first stage or prelampbrush chromosome stage, the chromosomes are Feulgen-positive or green after Unna, and on the autoradiographs show intense incorporation of [ 3 H]uridine after injection of this RNA precursor into the animal. During the beginning of this period, which is of very variable duration, the oocyte seems to be in a state of structural stability. The most prominent feature found in the ooplasm of oocytes at this stage is the very large paranuclear Balbiani yolk-body complex, which can be found labelled after injection of [ 3 H]thymidine into the animal. During the second stage or lampbrush chromosome stage, the Feulgen nuclear reaction in the chromosomes weakens or becomes negative and the paranuclear Balbiani yolk-body complex disappears. After Unna, the lampbrush chromosomes and their lateral loops are seen to be pyroninophilic. On the autoradiographs after intraperitoneal injection of [ 3 H]uridine rapid and intense RNase-sensitive incorporation of this precursor over the chromosomes and nucleoplasm may be noted. During this stage there is thus both cytochemical and autoradiographic evidence for RNA synthesis in the rapidly enlarging germinal vesicle. During the third or postlampbrush stage activity in the germinal vesicle sharply decreases; the volume of the germinal vesicle no longer increases, the very contracted chromosomes are present in the form of Feulgenpositive vacuolized central spherules, and, after intraperitoneal injection of [ 3 H]uridine into the adult laying quail, incorporation cannot be demonstrated in the chromosomes. By contrast, the fundamental part of the ooplasm derived from the cortex, at that moment shows both cytochemical and autoradiographic evidence of the presence and/or synthesis of nucleic acids. The postlampbrush stage is a characteristic feature of non-mature oocytes with a germinal disc and can only be found in regularly laying Japanese quails exposed to full daytime or continuous illumination. 1 Author's address: Laboratory of Anatomy & Embryology, Rijksuniversitair Centrum, Groenenborgerlaan, 171, 2020-Antwerp, Belgium.
The Effects of Plant Density and Row Spacing on the Height of Maize Hybrids of Different Vegetation Time and Genotype

The small plot experiment was set in 2013 at the RISFLátókép Experimental Farm of the Centre for Agricultural and Applied Economic Sciences of the University of Debrecen, on limecoated chernozem soil in four replications. The final heights of the maize hybrids were studied at three plant densities (50, 70, and 90 thousand ha) and two row spacing (45 and 76cm). During the experiment, we have investigated the development of the final plant heights of five maize hybrids of different vegetation time and genotype: Sarolta, DKC 4025, P 9175, Reseda/P 37M81, and SY Affinity. In the development of the plant heights, the tiller number and the hybrid were the decisive factors. The increasing stock density resulted in significant difference in the plant height values, while the row spacing did not. With the increase of plant density and the length of vegetation time, the heights of the individual plants increased. Keywords—Maize, plant density, row spacing, plant height, genotype.
How self-regulation helps to master negotiation challenges: An overview, integration, and outlook

En route to crafting profitable deals, negotiators face abundant challenges—from overcoming anger, to dealing with low power, to seeking hidden integrative opportunities. Here, we argue that self-regulation can help to master these negotiation challenges and improve negotiation outcomes. To this end, we provide a review of the literature on negotiation challenges and integrate it with self-regulation research. Based on the cybernetic feedback model of self-regulation and the phase model of negotiations, we structure the literature and argue how and why prominent self-regulation techniques such as specifying goals, mental contrasting, and if–then plans help to master negotiation challenges. In addition, we expand on the less researched self-regulation technique of self-monitoring and how it may help to achieve negotiation goals. We conclude that self-regulation provides a powerful toolbox to master the challenges that negotiators face at the bargaining table, identify limitations of the extant literature, and suggest avenues for future research.
Using a Noninvasive Decoding Method to Classify Rhythmic Movement Imaginations of the Arm in Two Planes

A brain-computer interface (BCI) can help to overcome movement deficits in persons with spinal-cord injury. Ideally, such a BCI detects detailed movement imaginations, i.e., trajectories, and transforms them into a control signal for a neuroprosthesis or a robotic arm restoring movement. Robotic arms have already been controlled successfully by means of invasive recording techniques, and executed movements have been reconstructed using noninvasive decoding techniques. However, it is unclear if detailed imagined movements can be decoded noninvasively using electroencephalography (EEG). We made progress toward imagined movement decoding and successfully classified horizontal and vertical imagined rhythmic movements of the right arm in healthy subjects using EEG. Notably, we used an experimental design which avoided muscle and eye movements to prevent classification results being affected. To classify imagined movements of the same limb, we decoded the movement trajectories and correlated them with assumed movement trajectories (horizontal and vertical). We then assigned the decoded movements to the assumed movements with the higher correlation. To train the decoder, we applied partial least squares, which allowed us to interpret the classifier weights although channels were highly correlated. To conclude, we showed the classification of imagined movements of one limb in two different movement planes in seven out of nine subjects. Furthermore, we found a strong involvement of the supplementary motor area. Finally, as our classifier was based on the decoding approach, we indirectly showed the decoding of imagined movements.
Idiopathic hypersomnia : A series of 42 patients

The features of idiopathic hypersomnia are not well defined. We reviewed clinical and laboratory information on 42 subjects with idiopathic hypersomnia and obtained detailed follow-up evaluations on 28 of them. Only 29% of subjects had 'classic' idiopathic hypersomnia with non-imperative sleepiness, long unrefreshing naps, prolonged night-time sleep, difficult awakening with sleep drunkenness and prominent mood disturbances. Thirty-two percent had clinical features similar to narcolepsy, i.e. irresistible sleepiness, short and refreshing naps, few problems with awakening and good response to stimulants, without cataplexy or any indication of abnormal REM (rapid eye movement) sleep. The other 39% had intermediate clinical characteristics. We found no increase in the frequency of the human leucocyte antigens associated with narcolepsy. Overall, response to stimulants was good in three-quarters of the patients and spontaneous improvement of sleepiness occurred in one-quarter. Possible aetiologies identified in 10 patients included viral illness, head trauma and primary mood disorder. Idiopathic hypersomnia is a rare syndrome in which clinical heterogeneity suggests a variable or multifactoral pathogenesis. Only a minority of cases correspond to classical descriptions. Stimulants are often beneficial and spontaneous improvement appears to be more common than in narcolepsy.
Mean-time-to-failure study of flip chip solder joints on Cu/Ni(V)/Al thin-film under-bump-metallization

Electromigration of eutectic SnPb flip chip solder joints and their mean-time-to-failure (MTTF) have been studied in the temperature range of 100 to 140 °C with current densities of 1.9 to 2.75×104 A/cm2. In these joints, the under-bump-metallization (UBM) on the chip side is a multilayer thin film of Al/Ni(V)/Cu, and the metallic bond-pad on the substrate side is a very thick, electroless Ni layer covered with 30 nm of Au. When stressed at the higher current densities, the MTTF was found to decrease much faster than what is expected from the published Black’s equation. The failure occurred by interfacial void propagation at the cathode side, and it is due to current crowding near the contact interface between the solder bump and the thin-film UBM. The current crowding is confirmed by a simulation of current distribution in the solder joint. Besides the interfacial void formation, the intermetallic compounds formed on the UBM as well as the Ni(V) film in the UBM have been found to dissolve completely into.
Large scale recurrent neural network on GPU

Large scale artificial neural networks (ANNs) have been widely used in data processing applications. The recurrent neural network (RNN) is a special type of neural network equipped with additional recurrent connections. Such a unique architecture enables the recurrent neural network to remember the past processed information and makes it an expressive model for nonlinear sequence processing tasks. However, the large computation complexity makes it difficult to effectively train a recurrent neural network and therefore significantly limits the research on the recurrent neural network in the last 20 years. In recent years, the use of graphics processing units (GPUs) becomes a significant advance to speed up the training process of large scale neural networks by taking advantage of the massive parallelism capabilities of GPUs. In this paper, we propose an efficient GPU implementation of the large scale recurrent neural network and demonstrate the power of scaling up the recurrent neural network with GPUs. We first explore the potential parallelism of the recurrent neural network and propose a fine-grained two-stage pipeline implementation. Experiment results show that the proposed GPU implementation can achieve 2 ~ 11 x speed-up compared with the basic CPU implementation with the Intel Math Kernel Library. We then use the proposed GPU implementation to scale up the recurrent neural network and improve its performance. The experiment results of the Microsoft Research Sentence Completion Challenge demonstrate that the large scale recurrent network without class layer is able to beat the traditional class-based modest-size recurrent network and achieve an accuracy of 47%, the best result achieved by a single recurrent neural network on the same dataset.
Metacontingências e a análise comportamental de práticas culturais Metacontingencies and the behavior analysis of cultural practices

Resumo: Na analise comportamental de praticas culturais o conceito de metacontingencia tem sido usado de diferentes maneiras, um mesmo nome para diferentes processos. O mesmo termo e usado para fenomenos de longa duracao sem recorrencia, como os movimentos sociais, para a descricao de contingencias em textos legais e regul amentos, e para interacoes estudadas em laboratorio. O presente tex to, ao apontar as diferencas, nao pretende eliminar a presente confus ao conceitual. Ela so indica que estamos apenas iniciando a analise compo rtamental de praticas culturais. Palavras-chave: cultura, comportamento, metacontingencias
Understanding the Effect of Immunity on Over-Dispersed Criminal Victimizations: Zero-Inflated Analysis of Household Victimizations in the NCVS

This study aims to empirically test the immunity effect on the frequency distribution of household victimizations. To clarify the immunity effect, the statistical construction of zero-inflated models is reviewed and compared with that of non-zero-inflated models. The Benjamini and Hochberg correction is used to address the limitation of p values in multiple testing. Compared with the findings from the non-zero-inflated model, two sets of coefficients from the zero-inflated model reveal that there exist more complex and diverse statuses in the process of household victimization than predicted by risk heterogeneity and event dependence. With these findings, this study suggests that zero-inflated models should be introduced and compared with non-zero-inflated models for the clarification of victimization determinants.
Kähler manifolds with numerically effective Ricci class

Compact Kahler manifolds with semipositive Ricci curvature have been investigated by various authors. S. Kobayashi [Ko61] first proved the simple connectedness of Fano manifolds, namely manifolds with positive Ricci curvature or equivalently, with ample anticanonical line bundle −KX . Later on, generalizing results of Y. Matsushima [Ma69], A. Lichnerowicz [Li71, 72] proved the following interesting fibration theorem: if X is a compact Kahler manifold with semipositive Ricci class, then X is a smooth fibration over its Albanese torus and there is a group of analytic automorphisms of X lying over the group of torus translations (see also Section 2 for another proof of these facts based on the solution of Calabi’s conjecture and on Bochner’s technique). Finally, there were extensive works in the last decades to study the structure and classification of Ricci flat Kahler manifolds, see e.g. [Ca57], [Bo74a,b], [Be83] and [Kr86] ; of special interest for physicists is the subclass of so-called Calabi-Yau manifolds, i.e. Ricci flat compact Kahler manifolds with finite fundamental group, which appear as a natural generalization of K3 surfaces.
Quantification of Adventitial Vasa Vasorum Vascularization in Double-injury Restenotic Arteries

Background: Accumulating evidence indicates a potential role of adventitial vasa vasorum (VV) dysfunction in the pathophysiology of restenosis. However, characterization of VV vascularization in restenotic arteries with primary lesions is still missing. In this study, we quantitatively evaluated the response of adventitial VV to vascular injury resulting from balloon angioplasty in diseased arteries. Methods: Primary atherosclerotic-like lesions were induced by the placement of an absorbable thread surrounding the carotid artery of New Zealand rabbits. Four weeks following double-injury induced that was induced by secondary balloon dilation, three-dimensional patterns of adventitial VV were reconstructed; the number, density, and endothelial surface of VV were quantified using micro-computed tomography. Histology and immunohistochemistry were performed in order to examine the development of intimal hyperplasia. Results: Results from our study suggest that double injured arteries have a greater number of VV, increased luminal surface, and an elevation in the intima/media ratio (I/M), along with an accumulation of macrophages and smooth muscle cells in the intima, as compared to sham or single injury arteries. I/M and the number of VV were positively correlated (R 2 = 0.82, P < 0.001). Conclusions: Extensive adventitial VV neovascularization occurs in injured arteries after balloon angioplasty, which is associated with intimal hyperplasia. Quantitative assessment of adventitial VV response may provide insight into the basic biological process of postangioplasty restenosis.
Quantitative judgement in social perception.

Stimuli which form a series may differ from each other in their physical magnitudes and in their value to the subject; they may also be classified according to various attributes. A theoretical schema is presented which is based on some assumptions about the effects of the interaction of these three variables upon absolute judgements pertaining to series of stimuli. These assumptions allow for predictions of shifts of judgement in a number of series in which these variables are found in various combinations. Many of these combinations are representative of conditions under which judgements in social situations are made. An attempt is also made to apply some predictions following from the schema to judgements involving not only physical but also abstract continua.
Error Estimates for the Runge-Kutta Discontinuous Galerkin Method for the Transport Equation with Discontinuous Initial Data

We study the approximation of nonsmooth solutions of the transport equation in one space dimension by approximations given by a Runge-Kutta discontinuous Galerkin method of order two. We take an initial datum, which has compact support and is smooth except at a discontinuity, and show that, if the ratio of the time step size to the grid size is less than $1/3$, the error at the time $T$ in the $L^2(\mathbb{R}\setminus\mathcal{R}_T)$-norm is the optimal order two when $\mathcal{R}_T$ is a region of size $O(T^{1/2}\,h^{1/2}\;\log{1/h})$ to the right of the discontinuity and of size $O(T^{1/3}\,h^{2/3}\;\log{1/h})$ to the left. Numerical experiments validating these results are presented.
Serum levels of matrix metalloproteinase 2 and matrix metalloproteinase 9 elevated in polypoidal choroidal vasculopathy but not in age-related macular degeneration

Purpose Age-related macular degeneration (AMD) and polypoidal choroidal vasculopathy (PCV) are the leading causes of vision loss in the elderly Asian population. Previous studies have confirmed that abnormal extracellular matrix (ECM) metabolism plays an important role in the pathogenesis of AMD and PCV. However, the dynamic metabolism of the ECM is closely regulated by matrix metalloproteinases (MMPs) and tissue metalloproteinase inhibitors (TIMPs). Whether MMPs and TIMPs participate in the pathogenesis of AMD and PCV remains unclear. The aim of this study was to investigate the correlation between circulating MMP and TIMP levels and AMD and PCV. Methods The serum levels of MMPs (MMP1, MMP2, MMP3, and MMP9) and TIMPs (TIMP1 and TIMP3) were quantified using enzyme-linked immunosorbent assays in four groups of subjects (n=342): early AMD (group 1, n=75), neovascular AMD (group 2, n=89), PCV (group 3, n=98), and age- and gender-matched controls (group 4, n=80). Results The mean concentrations of the two gelatinases, MMP2 and MMP9, in the PCV group were significantly higher than that of the control (p=0.001, p<0.001, respectively), early AMD (both p<0.001), and neovascular AMD (p=0.005, p=0.001, respectively) groups. Moreover, the serum MMP2 concentration was positively correlated with the serum MMP9 concentration in the PCV group (r=0.822, p<0.001). However, the mean concentrations of MMP2 and MMP9 in the early AMD and neovascular AMD groups were not significantly different from that of the control group (p>0.05). The mean serum levels of MMP1, MMP3, TIMP1, and TIMP3 were not significantly different among the four groups. Conclusions This pilot study first reveals a link between increased levels of circulating gelatinases (MMP2 and MMP9) and PCV but not AMD, which may provide a biologically relevant marker of ECM metabolism in patients with PCV. This finding suggests that the two disorders may have different molecular mechanisms.