Miracle-dz/UniFAR-FTUs huggingface dataset:
Options Listing and the Volatility of the Underlying Asset: A Study on the Derivative Market Function

There are basic misunderstandings on derivative markets. Some professionals believe that they are a kind of casinos and have no utility for the investors. This work looks at the effects of options introductionin the Brazilian market, seeking for another benefit for this introduction: changes in the stocks risk leveI. Our results are the same found in the USand other markets: the options introduction reduces the stocks volatility.We also found that there is a slight indication that the volatility becames more stochastic with this alternative.
Text Classification Method Based on Machine Learning and Domain Knowledge Ontology

The use of machine learning method is discussed herein to produce a corpus by domain knowledge ontology and conduct text classification according to the ontology of professional knowledge domain. Nowadays, a large number of literature materials have been accumulated in each professional field, and it is still in rapid growth. This constitutes a great challenge for researchers in various fields. To be specific, not only the workload in literature retrieval and reading is constantly increased, but also the work efficiency of the study is affected. In this paper, ontology is taken as the text feature extractor for storage, processing, classification and retrieval through ontology development tools Protégé, Jena and natural language processing tool NLTK, so as to facilitate the researcher for literature retrieval and reading. The advantage of this text classification method lies in that category structure is no longer a single tree structure, but instead, different categories may intersect and new category may be grouped by themselves. Keywords-machine learning; ontology; text classification
Assessing post-cardiac stress test heart rate recovery and systolic blood pressure recovery in patients suffering from vasovagal syncope

Background and purpose:Syncope is caused by disorder in blood flow to the brain and usually occurs in autonomic system dysfunction. On the other side, heart rate and systolic blood pressure response during cardiac exercise test as well as recovery stage depend upon autonomic nervous system. This research compares heart rate recovery (HRR) and systolic blood pressure recovery (SBPR) following exercise test among patients with vasovagal syncope and normal individuals.Research methodology:In this cross-sectional descriptive study, 31 patients with vasovagal syncope confirmed by head up tilt test (HUTT) and 32 normal individuals were investigated within 2015- 2017. Systolic and diastolic blood pressures, as well as heart rate were measured for both groups in the first and third minutes post exercise test; and any changes in blood pressure and heart rate were compared.Findings:48.39% and 51.61% of the patients group were female and male, respectively; and 59.37% and 40.63% of control group consisted of female and male. Mean age range in experimental group was 39.31 and 34.45 for control group. Mean HRR and mean SBPR for minute one was higher in patient group than control group (P value=0.1) and P value=0.12) respectively; while, mean HRR and SBPR for minute three showed larger in control group than the patients (P value=0.31 and 0.1) respectively.Conclusion:Patients suffering from vasovagal syncope showed different recovery test response than control group due to autonomic system dysfunction.
Recognition of finite exceptional groups of Lie type

Let $q$ be a prime power and let $G$ be an absolutely irreducible subgroup of $GL_d(F)$, where $F$ is a finite field of the same characteristic as $\F_q$, the field of $q$ elements. Assume that $G \cong G(q)$, a quasisimple group of exceptional Lie type over $\F_q$ which is neither a Suzuki nor a Ree group. We present a Las Vegas algorithm that constructs an isomorphism from $G$ to the standard copy of $G(q)$. If $G \not\cong {}^3 D_4(q)$ with $q$ even, then the algorithm runs in polynomial time, subject to the existence of a discrete log oracle.
Adapting to External Environmental Constraints: Classroom Teachers' Strategies.

ABSTRACT. To assess the cunent status of external constraints on teachers and the types of adaptation strategies they utilize, the researcher approached eight teachers, two from each division, teaching elementary and secondary schools in four school divisions located in metropolitan, urban, rural, and northern areas in a western prairie province of Canada. In-depth interviews and questionnaires revealed that these teachers experienced a high level of stress associated with external constraints arising from political, economic, social, and cultural sectors. While the coping strategies adopted by the sampled teachers suggested that they had not compromised their efforts at a time of high external constraints, there were troublesome signs denoting some erosion in their belief of general efficacy. The dissonance between the current emphasis on decentralization and their actual feelings of powerlessness seemed to pinpoint a disturbing area in the present effort of improving school performance. RESUME. Pour evaluer l'etat actuel des contraintes exterieures qui s'exercent sur les professeurs et les types de strategies d'adaptation qu'ils utilisent, le chercheur s'est adresse a huit enseignants, deux de chaque division, qui enseignent au primaire et au secondaire dans quatre commissions scolaires situees en secteur metropolitain, urbain, rural et nordique d'une province des prairies de l'Ouest du Canada. Les entrevues et les questionnaires ont revele que ces enseignants eprouvent un fort niveau de stress se rattachant a des contraintes exterieures d'origine politique, economique, sociale, et culturelle. Meme si les strategies d'adaptation adoptees par les professeurs echantillonnes incitent a croire qu'ils n'ont pas compromis leurs efforts a une epoque de fortes contraintes exterieures, on a note des signes troublants denotant une certaine erosion de leur croyance dans l'efficacite generale. La dissonance entre l'importance actuelle attachee a la decentralisation et leurs sentiments actuels d'impuissance semble souligner un element inquietant dans les efforts actuellement deployes pour ameliorer le rendement scolaire.
Phytotoxic Analysis of Extract of Leaves of Solanum megalochiton Mart. Solanaceae on Lactuca sativa L. and Allium cepa L.

The phytotoxic effect of crude ethanol extracts and fractions of leaves of Solanum megalochiton Mart. , Solanaceae on the germination, initial growth and respiration of Lactuca sativa L. (lettuce) and Allium cepa L. (onion) is analyzed. They were placed on 9.0-cm-diameter petri plates with filter paper 6 (Whatmann®). Assay was performed in a totally randomized design. Crude extract and fractions have a phytotoxic activity, with greatest effect on remaining fraction. Results show stimulation and inhibition on germination, growth and respiration. S. megalochiton contains metabolites with phytotoxic activity capable of affecting germination, growth and respiration of the species under analysis, with a potential for discovering new natural herbicide compounds
Formal Kinematic Analysis of a General 6R Manipulator Using the Screw Theory

Kinematic analysis is a significant method when planning the trajectory of robotic manipulators. The main idea behind kinematic analysis is to study the motion of the robot based on the geometrical relationship of the robotic links and their joints, such as the Denavit-Hartenberg parameters. Given the continuous nature of kinematic analysis and the shortcoming of the traditional verification methods, we propose to use high-order-logic theorem proving for conducting formal kinematic analysis. Based on the screw theory in HOL4, which is newly developed by our research institute, we utilize the geometrical theory of HOL4 to develop formal reasoning support for the kinematic analysis of a robotic manipulator. To illustrate the usefulness of our fundamental formalization, we present the formal kinematic analysis of a general 6R manipulator.
A mutual information approach to automatic calibration of camera and lidar in natural environments

This paper presents a method for calibrating the extrinsic and intrinsic parameters of a camera and a lidar scanner. The approach uses normalised mutual information to compare an image with a lidar scan. A camera model that takes into account orientation, location and focal length is used to create a 2D lidar image, with the intensity of the pixels dened by the angle of the normals in the lidar scan. Particle swarm optimisation is used to nd the optimal model parameters. The method is successfully validated in a natural environment with images collected by a hyperspectral and a 3D lidar scanner.
Growth Opportunities , Executive Stock Options , Capital Investment , and Performance : A Dynamic Setting

This study intends to investigate the logical rationale of executive stock options (ESOs), allowing for endogenity and dynamics. Literatures show that firms with more investment opportunities or higher stock volatility are more likely to award executive stock options. However, the time effect of a firm’s investment opportunities or its stock volatility on its compensation policy remains uncertain. To ensure unexercised stock options will be in the money, executives may take actions with higher possibilities to ensure higher future stock prices. In this case, two important, yet open questions are how long the effect of executives’ responses to ESO awards on capital investment would last, and how long the effect of option-induced capital investment on subsequent performance would last. By applying instrumental variable estimates and panel data analysis, the results indicate that (1) a firm’s investment opportunity in a year will positively affect its option awards in the following two to three years, (2) a firm’s ESO awards are positively influenced by stock volatility in the following two to three years, (3) the impact of the endogenously-determined option compensation on investment change exhibits a reverting response which converges to zero after six years, and (4) firm performance response to the option-induced investment change reversely from year to year and the response converges to zero after three to four years. These results not only demonstrate a logical rationale of ESOs but also lead to two implications for the study of examining the relation between option compensation and firm performance. First, it could be misleading if the incentive effect of option compensation on capital investment is not first examined. Second, the lag effect should be appropriately taken into consideration. Another implication is that ESOs promote short-term performance but not long-term performance, as initially expected.
Three Way Data Recommendation Method and Application

—Nonnegative Tensor Factorization has previously been used in many multi-way data analyses. We use NTF model to do personalized paper recommendation. For recommendation, we analyze four different multiplicative algorithms for NTF based on different decomposition models and different optimization functions. On one hand, one part of algorithms use CP decomposition, the other part use Tucker decomposition. On the other, half of algorithms minimize the least squares error while the others minimize the Kullback-Leibler divergence. Further, we also compare recommendation performance with different rank NTFs. From our experiments, nonnegative Tucker decomposition based on KL divergence has the better result, and to some extent, lower rank NTF can get most of information from dataset.
Experimental Governance: The Open Method of Coordination

The open method of coordination (OMC) has increased the competence of the European Union to regulate areas where the traditional Community legislative processes are weak, or where new areas require coordination of Member State policy, either as part of the spillover of the integration project as a result of economic and monetary union, or as a result of the case law of the European Court of Justice. The OMC is viewed as an aspect of new, experimental governance, which is part of the response by the EU to regulatory shortcomings. This article explores the normative aspects of the OMC using case studies. The article examines the conditions in which the OMC emerges, the conditions upon which it thrives, and the claims that are made for its effectiveness as a new form of governance.
Dairy Products Consumption and Risk of Type 2 Diabetes: A Systematic Review and Meta-Analysis of Prospective Cohort Studies

Context: The relationship between dairy products consumption and the incidence of diabetes is investigated in various studies leading to contradictory results; therefore, the current meta-analytical study aimed at shedding light on the matter and estimating the potentiality of diabetes resulting from consuming dairy products. Evidence Acquisition: The study used some reliable electronic databases such as Web of Science, Scopus, Science Direct, and PubMed revised to March 2016. All original articles from prospective cohort and case-cohort studies examining the relationship between dairy products consumption and the risk of diabetes were considered without any restrictions on age, gender, language, race, and publication year. To assess the quality of the study, the STROBE (strengthening the reporting of observational studies in epidemiology) checklist was employed. The indices of relative risk and rate ratio were reported using the random effect model. Results: Out of 1391 articles, 14 studies (covering 458,082 subjects) were included in the current meta-analysis. The findings showed that consuming dairy products prevents diabetes: total dairy decreases the risk of diabetes by 8% to 12% (relative risk = 0.88 (95%CI: 0.80, 0.96), rate ratio = 0.92 (95%CI: 0.88, 0.97)). The decrease adds up from 11% to 19% in the case of consuming low-fat dairy (relative risk = 0.81 (95%CI: 0.68, 0.96); rate ratio = 0.89 (95%CI: 0.85, 0.93)). In spite of the fact that high-fat dairy diminishes the risk of diabetes, the relationship is not statistically significant (relative risk = 0.98 (95%CI: 0.78, 1.24); rate ratio = 1.01 (95%CI: 0.96, 1.06)). Conclusions: The current study indicated that the consumption of total dairy and low-fat dairy had a preventive impact on the incidence of diabetes; therefore, it seems that drawing up some plans in this regard decreases the risk of the disease.
A comparison of indices of difference and similarity, based on LTASS and tested on voices in real forensic case and in controlled conditions

For 43 pairs of same and different voices in different speech contexts of real cases, LTASS has been made for the area between 800 and 3500 Hz on the basis of the recordings of speech over GSM mobile phones. SDDD and similarity indices in different speech context have been compared. For the sake of comparison of data achieved by the two speech recordings of standardized text read by 30 male and 35 female speakers, average values of indices are calculated for the same and different people: from 0 to 10 kHz and filtered voices from 0.8 to 3.5 kHz. The results of t-test have shown that the groups differ significantly, respectively greatest in the group of male voices recorded in the studio (0-10 kHz: p<0.001), filtered studio voices (p<0.001) and real cases (SDDD: p<0.01; R: p=0.01).
Aaptos sp. merupakan spons laut yang dapat memproduksi senyawa bioaktif seperti aaptamin, aaptosin, dan isoaaptamin yang memiliki aktivitas sebagai antitumor, antimikrobial, dan antiviral. Komunitas bakteri yang berasosiasi dengan spons tersebut kemungkinan berkorelasi dengan produksi komponen bioak

*Corresponding author; Phone: 62-21-53650157, Fax: +6221-53650158, Email: ekowatichasanah@gmail.com Aaptos sp. , one of marine sponges that can be found abundantly in Indonesian waters, has been reported to produce bioactive metabolite against tumor, pathogenic microbes, and Herpes Simplex Virus type I (HSV-1) (Coutinho et al. 2002). It was detected that the compounds produced were alkaloids, e.g aaptamin, aaptosin and isoaaptamine; the latter compound showed potent activity against Human Immunodeficiency Virus type I (HIV-1) (Gul et al. 2006). Aaptos sp. was also been reported to produce sterol compounds (Rachmat and Muniarsih 2001), and other novel aaptamine alkaloids possesing various biological activities, including cytotoxic against murine lymphoma L5178Y cell line, antiviral, antimicrobial, antifungal, antiparasitic, α-adrenergic antagonistic, radical scavenging, and antifouling activity (Pham et al. 2013). Sponge such as Aaptos sp. is very rich in microorganism including bacteria associated within their body. About 40 % of sponge body is bacteria, and its role is very significant in the sponge metabolism (Taylor et al. 2007). The sponge produces similar metabolites from their associated bacteria (Radjasa et Aaptos sp. is a marine sponge that could produce bioactive compounds such as aaptamin, aaptosin, and isoaaptamin which have activities as antitumor, antimicrobial, and antiviral. Community of bacteria associated with the sponge might correlate with production of those bioactive compounds and be affected by water environment where the sponge grow. The presence of anthropogenic stressor such as pollutans might become a burden to the waters where the biota grown and could affect the microbial biodiversity in the sponge and its active metabolite produced. The objective of this research was to analyze bacterial community associated with Aaptos sp. from Rote Island and Seribu Islands, using T-RFLP method. The results showed that bacterial community associated with Aaptos sp. from both sampling sites shared 40.81% similarity in which they were dominated by the same bacteria class of Actinobacteria, Flavobacteria, α-proteobacteria, δ-proteobacteria, and γ–proteobacteria. The bacteria collected from Rote island were more highly distributed and diverse than those from Seribu Islands. A total of 23 classes of microorganism were identified in Rote Island waters, while in Seribu Islands was 14 classes of microorganism. The presence of Actinobacteria and Proteobacteria in Aaptos sp. , is allegedly involved in the production of secondary metabolites.
A STUDY OF GENDER SPECIFIC PITCH VARIATION PATTERN OF EMOTION EXPRESSION FOR HINDI SPEECH

The present study is an attempt to analyze the pitch variation pattern of Hindi emotional voice samples in five different emotional states. Sample sentences of male and female speakers were recorded in different emotions i.e. Neutral, Angry, Happiness, Sadness and Surprise. Emotion validation of sample sentences was done using machine recognizer and listening test. Pitch variation analysis of the statistics derived from the pitch contour on selected sample sentences was performed using PRAAT and MATLAB and results computed as mean, standard deviation, maximum and minimum pitch, pitch range, and peak parameters show a strong influence of pitch variation on the emotional state of the speakers. The analysis includes discriminating capability of pitch features in different emotions when gender information is taken into consideration.
Bayesian regularized quantile regression

Regularization, e.g. lasso, has been shown to be effective in quantile regression in improving the prediction accuracy (Li and Zhu 2008; Wu and Liu 2009). This paper studies regularization in quantile regressions from a Bayesian perspective. By proposing a hierarchical model framework, we give a generic treatment to a set of regularization approaches, including lasso, group lasso and elastic net penalties. Gibbs samplers are derived for all cases. This is the first work to discuss regularized quantile regression with the group lasso penalty and the elastic net penalty. Both simulated and real data examples show that Bayesian regularized quantile regression methods often outperform quantile regression without regularization and their non-Bayesian counterparts with regularization.
Economic Security in an Agrarian Community

Free-market capitalism creates great wealth but is disempowering and produces widespread poverty, inequality, and human despair; it generates economic insecurity for the masses. A main reason for this is that free market capitalism operates from an exogenous perspective; it is guided by marginal utility and marginal productivity. What we need is capitalism that integrates endogenous and exogenous processes. This approach focuses on building creativity, innovativeness, and ingenuity in how people use resources to make a living. In this paper, I draw on what is happening in the Zowe community development program in northern Malawi where we have started what I have termed community entrepreneurship to propose a model of this approach to wealth generation and accumulation. The community entrepreneurship process I discuss in the paper is both exogenous and endogenous in that it focuses on (a) building entrepreneurial knowledge, skills, and capacity in communities and (b) propagating innovative, creative, and responsible behavior in the way people make a living. I conclude that following both endogenous and exogenous economic principles is one way for agrarian societies to attain economic security
Content Based Message Filtering For OSNS Using Machine Learning Classifier

Online social networking(OSNs) sites like Twitter, Orkut, YouTube, and Face book are among the most popular sites on the Internet. Users of these web sites forms a social network, which provides a powerful means of sharing, organizing, and finding useful information . Unlike web information , the Online social networks (OSN) are organized around more number of users joins the network, shares their information and create the links to communicate with other online users. The resulting social network sites provides a basis for maintaining social relationships, for finding users with similar interests, and for locating content and knowledge that has been contributed or endorsed by other users. In OSNs information filtering can be used for avoiding the unwanted messages sharing or commenting on the user Walls. In this paper, we have proposed a system to filter undesired messages from OSN walls. The system exploits a machine learning soft classifier to enforce customizable content-dependent FRs. Moreover, the flexibility of the proposed system in terms of filtering options is enhanced through the management of BLs.
Being able to play: experiences of social inclusion and exclusion within a football team of people seeking asylum

Australian policy makers and funding organisations have relied heavily on sport as a vehicle for achieving the goals of social cohesion and social inclusion. The generally accepted premise that sport includes individuals in larger social contexts, and in doing so creates positive social outcomes, remains largely untested and uncontested. This article considers the ways in which playing in an asylum seeker football team, located in Melbourne, Australia, facilitates both inclusive and exclusive experiences for its participants. Drawing on ethnographic fieldwork, life histories, and policy analysis, this article identifies the often-ignored importance of a sporting habitus and physical capital in individuals’ experiences of playing. The success or failure of the asylum seeker team to foster social inclusion is somewhat tenuous as the logic of competition can create conditions counter to those that would be recognised as inclusive. Further, such programmes are faced with sustainability problems, as they are heavily reliant on individuals within the organisation and community to “make things happen”. However, we suggest that for many men, the asylum seeker team provides an important site for the development and appreciation of ‘poly-cultural’ capital that contributes to forms of resilience and the achievement of other indicators of social inclusion.