Miracle-dz/UniFAR-FTUs huggingface dataset:
Série Scientifique Scientific Series Exploring Time-varying Jump Intensities: Evidence from S&p500 Returns and Options Exploring Time-varying Jump Intensities: Evidence from S&p500 Returns and Options

Reproduction partielle permise avec citation du document source, incluant la notice ©. Short sections may be quoted without explicit permission, if full credit, including © notice, is given to the source. CIRANO Le CIRANO est un organisme sans but lucratif constitué en vertu de la Loi des compagnies du Québec. Le financement de son infrastructure et de ses activités de recherche provient des cotisations de ses organisations-membres, d'une subvention d'infrastructure du Ministère du Développement économique et régional et de la Recherche, de même que des subventions et mandats obtenus par ses équipes de recherche. CIRANO is a private non-profit organization incorporated under the Québec Companies Act. Its infrastructure and research activities are funded through fees paid by member organizations, an infrastructure grant from the Ministère du Développement économique et régional et de la Recherche, and grants and research mandates obtained by its research teams. Le CIRANO collabore avec de nombreux centres et chaires de recherche universitaires dont on peut consulter la liste sur son site web. Les cahiers de la série scientifique (CS) visent à rendre accessibles des résultats de recherche effectuée au CIRANO afin de susciter échanges et commentaires. Ces cahiers sont écrits dans le style des publications scientifiques. Les idées et les opinions émises sont sous l'unique responsabilité des auteurs et ne représentent pas nécessairement les positions du CIRANO ou de ses partenaires. This paper presents research carried out at CIRANO and aims at encouraging discussion and comment. The observations and viewpoints expressed are the sole responsibility of the authors. They do not necessarily represent positions of CIRANO or its partners. Mots clés : processus composé de Poisson, évaluation du prix des options, filtrage, sauts liés à la volatilité, primes de risque de sauts, intensité des sauts variant dans le temps, hétéroscédasticité. * P. Christoffersen and K. Jacobs are grateful for financial support from FQRSC, IFM2 and SSHRC. P. Christoffersen gratefully acknowledges the hospitality of CBS and the financial support from the Center for Research in Econometric Analysis of Time Series, CREATES, funded by the Danish National Research Foundation. Ornthanalai was supported by CIREQ and J.W. McConnell Fellowships. We would like to thank the participants at EFA, EFMA, the FDIC Derivatives Conference and the Canadian Econometrics Study Group for helpful comments. Any remaining inadequacies are ours alone. Abstract Standard empirical investigations of jump dynamics in returns and volatility are fairly complicated due to the presence of latent continuous-time …
Chaotic bidirectional associative memory

A chaotic bidirectional associative memory (CBAM) is proposed and simulated. It can deal with one-to-many associations such as {(A,a), (A,b), (A,c),/spl middot//spl middot//spl middot/}. In the CBAM, in order to enable one-to-many associations, each training pair is memorized together with its own contextual information and chaotic neurons are employed in a part of the network corresponding to the contextual information. Since the chaotic neurons change their states by chaos, the one-to-many associations can be realized in the CBAM.
Revised Memory and Behavior Problems Checklist in Taiwanese Patients With Alzheimer's Disease

The Revised Memory and Behavior Problems Checklist (RMBPC) is a 24-item caregiver report that measures observable behavioral and memory problems in dementia patients and their caregivers' reaction to these problems. The purpose of the present study was to evaluate the applicability of the RMBPC for use in Taiwanese patients with Alzheimer's disease (AD). The subjects included 76 AD patients (39 men and 37 women, mean age 72.3) and their caregivers (34 men and 42 women, mean age 53.5) who participated in a comprehensive assessment at the Veterans General Hospital-Taipei. The Chinese version of the Cognitive Abilities Screening Instrument was administered to the patients. Their caregivers rated the RMBPC and the short version of the Geriatric Depression Score (GDS). To assess the test-retest reliability, 30 caregivers rated a second RMBPC 3 days after the first evaluation. The mean score for the frequency rating on the RMBPC was 32.63 (SD = 12.44, range = 5–61) and the mean reaction score was 10.96 (SD = 11.53). The reaction score was significantly correlated with the GDS score (r = .363, p = .001). The Cronbach's alpha coefficients for frequency and reaction scores were . 816 and . 895 respectively. The test-retest reliabilities of total frequency and reaction scores were significantly correlated; overall correlations were . 89 for frequency (p < .001) and . 74 for reaction (p < .001). These findings suggest that the RMBPC be recommended as a reliable tool to assess behavioral and memory disturbance in Taiwanese AD patients.
Neighborhood characteristics and depressive symptoms in an older population

Objectives: We explored relationships between depressive symptoms and neighborhood environment measures including traffic safety, crime, social capital, and density of businesses in community-dwelling older adults from four different regions of the United States. Method: The Healthy Aging Research Network walking study is a cross-sectional study of 884 adults aged 65+, which included a 10-item Center for Epidemiologic Studies Depression scale of depressive symptoms, demographics, self-reported neighborhood perceptions, and objective neighborhood data. Results: After adjusting for individual covariates, reports of neighborhood crime, unsafe traffic, and unwillingness of neighbors to help each other were significantly positively associated with depressive symptoms among participants. Conclusion: This research suggests an association between self-reported depressive symptoms and the social and built environment; examining causal association requires additional longitudinal research in diverse populations of older adults.
Deciphering Foreign Language by Combining Language Models and Context Vectors

In this paper we show how to train statistical machine translation systems on real-life tasks using only non-parallel monolingual data from two languages. We present a modification of the method shown in (Ravi and Knight, 2011) that is scalable to vocabulary sizes of several thousand words. On the task shown in (Ravi and Knight, 2011) we obtain better results with only 5% of the computational effort when running our method with an n-gram language model. The efficiency improvement of our method allows us to run experiments with vocabulary sizes of around 5,000 words, such as a non-parallel version of the VERBMOBIL corpus. We also report results using data from the monolingual French and English GIGAWORD corpora.
Undifferentiated arthritis and reactive arthritis.

The terms undifferentiated arthritis and undifferentiated characterize arthritides that do not fit into well-known clinical disease categories (e.g., seronegative rheumatoid arthritis and reactive arthritis) and that are an early stage or forme fruste of a definite rheumatic disease, an overlap syndrome between such diseases, or an unknown, etiologically undefined disease that remains to be differentiated from other types of arthritis or spondylarthritis. Undifferentiated arthritis and undifferentiated spondylarthritis share some clinical features with reactive arthritides. Recent data suggest that, at least in Chlamydia-induced reactive arthritis, the triggering bacteria persist in affected joints for some time during the course of the disease in a viable but nonreplicative state, providing an antigenic stimulus for a bacteria-specific immune reaction in the joint. The clinical manifestations of reactive arthritis include not only Reiter's syndrome or clinically suspected postinfectious arthritis but also undifferentiated oligoarthritis and spondylarthritis. The optimal treatment remains to be defined, but there is increasing data that antibiotic therapy is not as effective in cases of well-established reactive arthritis as has been suggested.
Department of Economics Working Paper Series Technology Diffusion through Trade with Heterogeneous Firms Technology Diffusion through Trade with Heterogeneous Firms

I investigate the long-run implications of trade and technology diffusion through trade, when firms are heterogeneous and trade is costly. The paper integrates firm heterogeneity and trade into product innovation growth models from endogenous growth theory. Two specifications of the R&D process are considered. In the first, R&D uses labor and intermediate goods; in the second, it uses labor and available technology. I find that under both specifications, exposure to trade increases average productivity. Furthermore, under the first specification exposure to trade always has a positive effect on economic growth, while it has an ambiguous effect on growth under the second.
Social and biological early life influences on the prevalence of open bite in Brazilian 6-year-olds.

OBJECTIVE Little is known about the effects of social and biological risk factors for open bite on the primary dentition. The aim of this study was to assess the early-life risk factors affecting anterior open bite. METHODS A cross-sectional study using a birth cohort was carried out in Pelotas, Brazil. A sample of 400, 6-year-old children was employed. The Foster and Hamilton criteria were used to classify open bite. Data concerning social conditions, and perinatal and childhood health and behaviour were obtained from birth to 12 months of age and during the fifth year of the children's lives. Unconditional bivariate and multiple logistic regression analysis were performed. RESULTS The prevalence of anterior open bite was 46.3%. Risk factors included: a maternal age of between 30 and 39 years, as compared with children whose mothers were younger; breast-feeding for < 9 months; dental caries experience; pacifier sucking between 12 months and 5 years, as compared to no sucking or a shorter duration of sucking; and the presence of finger-sucking at 6 years of age. CONCLUSION Open bite in the primary dentition was associated with older mothers, early weaning, dental caries occurrence, long-term use of a pacifier and finger-sucking at 6 years of age. These findings support the common risk approach for intervention to prevent open bite in the primary dentition.
Chemical Kinetic Analysis on the Effect of the Occurrence of Cool Flame on SI Knock

Zero-dimensional knock simulations have been performed by using the model proposed by Noda et al. [SAE technical paper 2004-01-0618] implemented in CHEMKIN-PRO software. A detailed chemical kinetic mechanism for fivecomponent gasoline surrogate was used with composition corresponding to JIS 2nd-grade gasoline (RON=90.8 and MON=82.9). An interesting effect of the cool flames appearing before the compression by flame propagation on the knocking was observed, which was suggested to play a key role in the recent development of SI engines. Present study implies that the modeling with kinetic mechanisms can be a powerful tool for technology breakthrough of next generation combustion engines.
Program derivation - the development of programs from specifications

Interestingly, program derivation the development of programs from specifications that you really wait for now is coming. It's significant to wait for the representative and beneficial books to read. Every book that is provided in better way and utterance will be expected by many peoples. Even you are a good reader or not, feeling to read this book will always appear when you find it. But, when you feel hard to find it as yours, what to do? Borrow to your friends and don't know when to give back it to her or him.
An Architecture for Developing Behavioral History

We present an architecture for large-scale sharing of past behavioral patterns about network actors (e.g., hosts or email addresses) in an effort to inform policy decisions about how to treat future interactions. In our system, entities can submit reports of certain observed behavior (particularly attacks) to a distributed database. When deciding whether to provide services to a given actor, users can then consult the database to obtain a global history of the actor's past activity. Three key elements of our system are: (i) we do not require a hard-and-fast notion of identity, (ii) we presume that users make local decisions regarding the reputations developed by the contributors to the system as the basis of the trust to place in the information, (iii) we envision enabling witnesses to attest that certain activity was observed without requiring the witness to agree as to the behavioral meaning of the activity. We sketch an architecture for such a system that we believe the community could benefit from and collectively build.
Friendship and natural selection

More than any other species, humans form social ties to individuals who are neither kin nor mates, and these ties tend to be with similar people. Here, we show that this similarity extends to genotypes. Across the whole genome, friends’ genotypes at the single nucleotide polymorphism level tend to be positively correlated (homophilic). In fact, the increase in similarity relative to strangers is at the level of fourth cousins. However, certain genotypes are also negatively correlated (heterophilic) in friends. And the degree of correlation in genotypes can be used to create a “friendship score” that predicts the existence of friendship ties in a hold-out sample. A focused gene-set analysis indicates that some of the overall correlation in genotypes can be explained by specific systems; for example, an olfactory gene set is homophilic and an immune system gene set is heterophilic, suggesting that these systems may play a role in the formation or maintenance of friendship ties. Friends may be a kind of “functional kin. ” Finally, homophilic genotypes exhibit significantly higher measures of positive selection, suggesting that, on average, they may yield a synergistic fitness advantage that has been helping to drive recent human evolution.
Reuse of Semantics in Business Applications

This paper sets out an exploration of the considerations for the reuse of ontologies in the creation of an industry-wide business ontology. The paper introduces the Financial Industry Business Ontology (FIBO), a finance industry initiative and describes a number of ways in which meaning has been reused from available ontological resources. Some common themes are identified for reuse of semantics and the socializing of business meanings from different sources within an organization or industry standard ontology. Examples are given of ways in which different ontologies have been referenced by or incorporated into the FIBO models. Business applications range across a wide range of subject matter and arguably require a more well-grounded approach to meaning in the ontology than would be appropriate for stand-alone applications. Some pitfalls are identified in the re-use of ontologies which have been created with different purposes in mind.
2-2014 Composition of Wealth , Conditioning Information , and the Cross-Section of Stock Returns

Value stocks covary with aggregate consumption more than growth stocks during periods when financial wealth is low relative to consumption. However, the conditional value premium does not exhibit such countercyclical behavior. Consequently, a one-factor conditional consumption-based asset pricing model can be rejected without making any arbitrary assumptions on the dynamics of the price of risk or the conditional moments. Empirical evidence is somewhat more consistent with a consumption-based model augmented with an aggregate wealth growth factor, which can be motivated by either recursive preferences or relative wealth concerns. Disciplines Finance | Finance and Financial Management This journal article is available at ScholarlyCommons: https://repository.upenn. edu/fnce_papers/369 Composition of Wealth, Conditioning Information, and the Cross-Section of Stock Returns ∗ Nikolai Roussanov The Wharton School University of Pennsylvania, and NBER†
Toward Automatic Understanding of the Function of Affective Language in Support Groups

Understanding expressions of emotions in support forums has considerable value and NLP methods are key to automating this. Many approaches understandably use subjective categories which are more fine-grained than a straightforward polarity-based spectrum. However, the definition of such categories is non-trivial and, in fact, we argue for a need to incorporate communicative elements even beyond subjectivity. To support our position, we report experiments on a sentiment-labelled corpus of posts taken from a medical support forum. We argue that not only is a more fine-grained approach to text analysis important, but simultaneously recognising the social function behind affective expressions enable a more accurate and valuable level of understanding.
Personality, motives and learning environment as predictors of self-determined learning motivation

This study investigates how well can personality, motives for studying and the perceived learning environment predict self-determined learning motivation in higher education. Previous research has predominantly focused on the interrelation between learning environment and self-determined motivation or on the outcomes of self-determined learning motivation. The question whether relatively stable personality dispositions preform self-determined learning motivation has been largely neglected. The theoretical basis of this study is the differential psychology model, the “Big Five” model (Goldberg, 1999; McCrae et al., 2000), as well as Deci and Ryan’s (2002a) self-determination theory. The data of 730 students were analyzed by means of regression analyses, with personality traits (Big Five), study motives and the perception of the teaching-learning environment as independent variables and self-determined learning motivation as a dependent variable. The results of hierarchical regression analyses show that the personality dimensions of conscientiousness, neuroticism and openness predict a large part of the variance of learning motivation and that additional predictors are motives to study and the perception of learning environments.
GRB 090426: the environment of a rest-frame 0.35-s gamma-ray burst at a redshift of 2.609

We present the discovery of an absorption-line redshift of z = 2.609 for GRB 090426, establishing the first firm lower limit to a redshift for a gamma-ray burst (GRB) with an observed duration of 90 per cent confidence) a member of the short/hard phenomenological class of GRBs. From analysis of the optical-afterglow spectrum we find that the burst originated along a very low H i column density sightline, with NH i < 3.2 × 1019 cm-2. Our GRB 090426 afterglow spectrum also appears to have weaker low-ionization absorption (Si ii, C ii) than ∼95 per cent of previous afterglow spectra. Finally, we also report the discovery of a blue, very luminous, star-forming putative host galaxy (∼2L *) at a small angular offset from the location of the optical afterglow. We consider the implications of this unique GRB in the context of burst duration classification and our understanding of GRB progenitor scenarios. © 2009 RAS.
Identification and characterization of cancer initiating cells from BRCA1 related mammary tumors using markers for normal mammary stem cells

It is hypothesized that cancer stem cells arise either from normal stem cells or from progenitor cells that have gained the ability to self-renew. Here we determine whether mammary cancer stem cells can be isolated by using antibodies that have been used for the isolation of normal mammary stem cells. We show that BRCA1 mutant cancer cell lines contained a subpopulation of CD24+CD29+ or CD24+CD49f+ cells that exhibited increased proliferation and colony forming ability in vitro, and enhanced tumor-forming ability in vivo. The purified CD24+CD29+ cells could differentiate and reconstitute the heterogeneity found in parental cells when plated as a monolayer. Under low-attachment conditions, we detected “tumorspheres” only in the presence of double positive cells, which maintained their ability to self-renew. Furthermore, CD24+CD29+ cells could form tubular structures reminiscent of the mammary ductal tree when grown in three-dimensional cultures, implying that these cancer cells maintain some of the characteristics of the normal stem cells. Nevertheless, they could still drive tumor formation since as low as 500 double positive cells immediately after sorting from BRCA1 mutant primary tumors were able to form tumors with the same heterogeneity found in the original tumors. These data provide evidence that breast cancer stem cells originate from normal stem cells and advance our understanding of BRCA1-associated tumorigenesis with possible implications for future cancer treatment.
Cranberry juice consumption lowers markers of cardiometabolic risk, including blood pressure and circulating C-reactive protein, triglyceride, and glucose concentrations in adults.

BACKGROUND Cardiometabolic risk is the risk of cardiovascular disease (CVD), diabetes, or stroke, which are leading causes of mortality and morbidity worldwide. OBJECTIVE The objective of this study was to determine the potential of low-calorie cranberry juice (LCCJ) to lower cardiometabolic risk. METHODS A double-blind, placebo-controlled, parallel-arm study was conducted with controlled diets. Thirty women and 26 men (mean baseline characteristics: 50 y; weight, 79 kg; body mass index, 28 kg/m(2)) completed an 8-wk intervention with LCCJ or a flavor/color/energy-matched placebo beverage. Twice daily volunteers consumed 240 mL of LCCJ or the placebo beverage, containing 173 or 62 mg of phenolic compounds and 6.5 or 7.5 g of total sugar per 240-mL serving, respectively. RESULTS Fasting serum triglycerides (TGs) were lower after consuming LCCJ and demonstrated a treatment × baseline interaction such that the participants with higher baseline TG concentrations were more likely to experience a larger treatment effect (1.15 ± 0.04 mmol/L vs. 1.25 ± 0.04 mmol/L, respectively; P = 0.027). Serum C-reactive protein (CRP) was lower for individuals consuming LCCJ than for individuals consuming the placebo beverage [ln transformed values of 0.522 ± 0.115 ln(mg/L) vs. 0.997 ± 0.120 ln(mg/L), P = 0.0054, respectively, and equivalent to 1.69 mg/L vs. 2.71 mg/L back-transformed]. LCCJ lowered diastolic blood pressure (BP) compared with the placebo beverage (69.2 ± 0.8 mm Hg for LCCJ vs. 71.6 ± 0.8 mm Hg for placebo; P = 0.048). Fasting plasma glucose was lower (P = 0.03) in the LCCJ group (5.32 ± 0.03 mmol/L) than in the placebo group (5.42 ± 0.03 mmol/L), and LCCJ had a beneficial effect on homeostasis model assessment of insulin resistance for participants with high baseline values (P = 0.035). CONCLUSION LCCJ can improve several risk factors of CVD in adults, including circulating TGs, CRP, and glucose, insulin resistance, and diastolic BP. This trial was registered at clinicaltrials.gov as NCT01295684.
Bmc Medical Informatics and Decision Making a Decision Aid for Copd Patients Considering Inhaled Steroid Therapy: Development and before and after Pilot Testing

Background: Decision aids (DA) are tools designed to help patients make specific and deliberative choices among disease management options. DAs can improve the quality of decision-making and reduce decisional conflict. An area not covered by a DA is the decision of a patient with chronic obstructive pulmonary disease (COPD) to use inhaled steroids which requires balancing the benefits and downsides of therapy.