Miracle-dz/UniFAR-FTUs huggingface dataset:
Conceptual Critic of Entrepreneurial Triadic Approach

There is a general consensus among researchers that entrepreneurship has transmuted into a global phenomenon, thus demanding a global comprehensive understanding. Entrepreneurial concepts have metamorphosed over time and are inextricably connected with contemporary socio-economic development. The theoretical journey of entrepreneurship in relation to university-based entrepreneurial ecosystem development was traced and examined in this study using a sympathetic critical approach and the author plied a unique conceptual road map: Firstly, a broad spectrum approach was used to examine the conceptualization of the broad field of entrepreneurship as it evolves into entrepreneurial ecosystem. Secondly, criticism of entrepreneurship approach which aids in focusing and fine-tuning the substantive development of entrepreneurship is constructively significant for the development of ‘smart’ entrepreneurship. This study opens with the consideration and logical contemplation of the general entrepreneurship field, cardinal theories and current debates tailored to spur innovative entrepreneurial thought were dutifully delineated.
A review of Costas arrays

Costas arrays are not only useful in radar engineering, but they also present many interesting, and still open, mathematical problems. This work collects in it all important knowledge about them available today: some history of the subjects, density results, construction methods, construction algorithms with full proofs, and open questions. At the same time all the necessary mathematical background is offered in the simplest possible format and terms, so that this work can play the role of a reference for mathematicians and mathematically inclined engineers interested in the field.
Investor sentiment of lottery stock- evidence from the Taiwan stock market

This paper examines whether lottery features preference impacts returns and volatility of Taiwan listed stock. The work employs the idiosyncratic price and idiosyncratic volatility (Kumar, 2009), which measure stock with lottery features. Our empirical results show that in regions with higher distraction affect the stock return more than low reli-gion’s. Moreover, a rise or fall in investor sentiment does affect stock volatility, particularly the bullish sentiment. The paper showed that the investor sentiment plays an important role for capturing the returns and volatility in the financial market.
The Effect of Neovascularization on Human Retinal Pigment Epithelium after Hyperbaric Oxygen Therapy

Objective: To investigate the neovascularization effect of hyperbaric oxygen (HBO) therapy on human retinal pigment epithelium (REP) cells. Methods: Human REP cells were cultured in vitro, and divided into normoxic control group and hypoxic control group randomly. The experimental groups were then divided into three subgroups via the different HBO pressure, 0.15 MPa exposed group, 0.2 MPa exposed group, and 0.25 MPa exposed group. The experimental groups were exposed to 100% pure oxygen for 60 and 90 minutes twice, with a 24 hours interval. After HBO exposure the expression of pigment epithelium-derived factor (PEDF) and tumor necrosis factor alpha (TNF- α) by RPE cells were measured by western blot. Results: The western blot result showed that the level of PEDF expression in both experimental groups had an increased trend as the pressure increases with statistical significance (P<0.01). The expression of PEDF in the normoxic group was higher than the hypoxic group. The results showed that the level of TNF-α expression by RPE cells in both experimental groups have a decrease trend as the pressure increases with statistical significance (P<0.01). The results showed that the expression of TNF-α in the hypoxic group was higher when compared to the normoxic group. The duration of HBO exposure has no statistical significance on the level of PEDF and TNF- α expression. Conclusion: This study supports the idea that HBO increases the release of PEDF by RPE cells whither in normoxic and hypoxic conditions, and decreases the release of TNF- α by RPE cells in both conditions, especially in hypoxic state. We also found that HBO can raise the level of PEDF and decrease the level of TNF- α in RPE cells, and has an anti-angiogenic effect which can suppress the formation of neovascularization.
Target Detection and Tracking Algorithm based on the Improved Multi-feature Camshift

In this paper, a vision-based target detection and tracking approach using improved multi-feature camshift is presented. Because the traditional camshift based on single feature is not robust when the background color, illuminate and target deformation change, it may lead to losing target or failure of tracking. In order to improve this problem, we presented target detection and tracking algorithm based on improved multi-feature camshift. The foreground image was obtained by Gaussian Mixture Model (GMM), which was used to modify the kernel function of target model. Due to the advantage of colour and texture feature in describing the target appearance, these features were used as recognition features. Additionally, EKF was integrated in tracking system to improve the accuracy of target tracking and predict the object position when the target was occluded. This paper details the architecture of the presented method and gives some experimental results to verify the effectiveness of the proposed method.
GROWTH ACCELERATION OF PINUS SYLVESTRIS IN BOG STANDS DUE TO INTENSIFIED NUTRIENT INFLUX FROM THE ATMOSPHERE

(a) Institute of Physics, University of Tartu Ulikooli Str. 18, 50090 Tartu, Estonia (b) Chair of Biology, Tallinn University Narva Road 25, 10120 Tallinn, Estonia (c) Hugo Treffner Gymnasium Munga Str. 2, 51007 Tartu, Estonia (d) Institute of Ecology and Earth Sciences, University of Tartu Ulikooli Str. 18, 50090 Tartu, Estonia (e) Tiirikoja Lake Station, Estonian Meteorological and Hydrological Institute Narva Str. 108, 49604 Mustvee, Jogevamaa (f) Tartu Observatory 61602 Toravere, Tartumaa, Estonia
National IQ and National Productivity: The Hive Mind Across Asia

A recent line of research demonstrates that cognitive skills—intelligence quotient scores, math skills, and the like—have only a modest influence on individual wages, but are strongly correlated with national outcomes. Is this largely due to human capital spillovers? This paper argues that the answer is yes. It presents four different channels through which intelligence may matter more for nations than for individuals: (i) intelligence is associated with patience and hence higher savings rates; (ii) intelligence causes cooperation; (iii) higher group intelligence opens the door to using fragile, high-value production technologies; and (iv) intelligence is associated with supporting market-oriented policies. Abundant evidence from across ADB member countries demonstrates that environmental improvements can raise cognitive skills is reviewed.
Centroid Based on Branching Contour Matching for 3D Reconstruction using Beta-spline

 A bstract—Reconstruction of real object often involves branching contour cases. An effective technique is required to determine the correct corresponding sub contour between two connected contours. This is to ensure the accuracy of the resulted image. This study has introduced a contour matching method using the similarity of the sub contour centroid value. The technique is fast enough equivalence to the  requirement of reconstruction technique which has to be time and space effective. The matched sub contours then are connected by introducing an intermediate contour called as composite contour. The technique has been applied in the reconstruction of human head and Stanford bunny from CT images. Beta-spline was employed as the fitted surface as this surface has capability to give smoothed and accurate result.
Quality assessment of commercial formulations of tin based herbal drug by physico-chemical fingerprints

The Tin based herbal drug Vanga Parpam is extensively used for treating urino genital infections, Odema, Polydepsia and Dyspepsia effectively. There are no reports of physico chemical fingerprints for the tin based drug available. Proper characterization techniques are required for checking the quality of the commercial samples, in terms of the physical and chemical constitution to meet the expected criteria to support its use worldwide. Two popular commercial brands such drug were characterized and compared in terms of morphology, composition, crystal lattice, and oxidation state of the active metal. Physico-chemical fingerprints were generated for the samples using analytical techniques like Powder X ray crystallography, Scanning Electron Microscopy, Energy Dispersive X ray Analysis and Inductively Coupled Plasma Optical Emission Spectroscopy and Fourier Transformed Infra Red spectroscopy. It was found that the percentage of tin varied drastically in both brands along with a difference in the percentage composition of other elements and surface morphology which would have significant impact on the therapeutic efficacy and pharmacological activity of the drug samples. The current study appropriately substantiated the need for the use of modern analytical techniques in the establishment of quality and safety assurance of such potent drug.
Oxidant / Antioxidant Status of Herbs Allium Vineale and Chaerophyllum Macropodum Used for Manufacture of Van Herby Cheese

The objective of this study was to determine total antioxidant capacity (TAC), total oxidant status (TOS), oxidative stress index (OSI), total phenolics, free sulfhydryl (SH) groups and lipid hydroperoxides (LH) contents of herbs Allium vineale L. (Liliaceae) and Chaerophyllum macropodum Boiss (Apiaceae) used for production of traditional Van herby cheese. Herbs of A. vineale and C. macropodum showed both oxidant and antioxidant properties in varying levels. TOS value of C. macropodum appears higher than that of A. vineale , while antioxidant capacities of both herbs were comparable. The lowest TAC value was found in brined C. macropodum (2.13 mmol Trolox equiv./g extract). TOS, OSI and LH contents of dried samples of C. macropodum were higher than the values of dried samples of A. vineale while these parameters were similar in brined samples of both herbs. The lowest SH value was determined in dried samples of C. macropodum (0.05 mmol/g extract) and, the highest was in brined samples of A. vineale (0.09 mmol/g extract). On the other hand, total phenolics values of dried samples were higher than those of brined samples. The TOS and OSI values of herbs determined in the present study can increase the TOS value during failure of antioxidant defense system in humans. Keywords: Oxidant, Antioxidant, Allium vineale, Chaerophyllum macropodum
Image Retrieval Using Dynamic Weighting of Compressed High Level Features Framework with LER Matrix

In this article, a fabulous method for database retrieval is proposed. The multiresolution modified wavelet transform for each of image is computed and the standard deviation and average are utilized as the textural features. Then, the proposed modified bitbased color histogram and edge detectors were utilized to define the high level features. A feedback-based dynamic weighting of shape, color and textural features composition produce a resistant feature vectors for image retrieval and recall. A comprehensive and unified matching scheme based on matrix error rate technique was accomplished for similarity of image and retrieval procedure. The feature vectors size in our algorithm is the least one evaluated to the different techniques. Furthermore, the calculation time of previously published techniques is much more than the presented algorithm which is a benefit in proposed retrieval method. The experimental results illustrates that novel algorithm obtains more precious in retrieval and the efficiency in evaluating with the other techniques and algorithms at Corel color image database.
A differential transformation method for approximating the chaotic Chen system

This paper presents approximate analytical solutions for chaotic Chen system which is a three-dimensional system of ordinary differential equations using differential transform method. Comparisons between the fourth-order Runge-Kutta (RK4) methods with different time steps were done. It has been observed that the accuracy of RK4 solutions can be increased by decreasing the time step. Furthermore, the numerical results are compared to those obtained by the Runge-Kutta method to illustrate the preciseness and effectiveness of the proposed method.
EFFECT OF FEEDING AND MALE PRESENCE ON SOME BIOLOGICAL CHARACTERISTICS OF FEMALE TRICHOGRAMMA BRASSICAE (HYMENOPTERA: TRICHOGRAMMATIDAE)

کیفیت پایین دشمنان طبیعی در شکست برنامه‌های کنترل بیولوژیک نقش دارد. در پژوهش حاضر تأثیر تغذیه از عسل و مدت زمان حضور نرها بر برخی خصوصیات زیستی زنبور پارازیتوئید Trichogramma brassicae Bezdenko مورد مطالعه قرار گرفت. چهار تیمار عبارت بودند از: حضور پارازیتوئید نر به مدت 24 ساعت همراه با پارازیتوئید ماده با عسل و بدون عسل؛‌ حضور پارازیتوئید نر برای تمام عمر همراه با پارازیتوئید ماده با عسل و بدون عسل. در هر تیمار بیست جفت زنبور پارازیتوئید تازه‌خارج‌‌شده به‌صورت جداگانه به لوله‌ی آزمایش منتقل شدند. میزان مرگ و میر پارازیتوئید ماده به طور روزانه ثبت گردید. به منظور تعیین میزان باروری، نرخ خروج و درصد نتاج ماده، 150 عدد تخم تازه‌ی شب‌پره‌یSitotroga cerealella Olivier برای هر تیمار به‌صورت روزانه تأمین شد. نتایج نشان داد که اثر متقابل بین عامل تغذیه و مدت زمان حضور نرها معنی‌دار نبوده (01/0P
Building tribal communities in the collaborative economy: an innovation framework

Abstract In recent years, there has been a groundswell of initiatives aimed at providing platforms to share resources among people. Collaborative consumption provides a model for a ‘sharing economy’ where the dominant logic of consumers is resource access rather than ownership. This study examines the nature and development of a variety of collaborative consumption businesses; in particular, we explore how start-up entrepreneurs see the problems of creating a tribal community among customers and users. Interviews were carried out with founders and co-founders of collaborative consumption ventures during 2014–15. The results suggest that these organisations face many common issues. We develop and apply a framework to understand some of these. We find that collaborative consumption entrepreneurs strive to build a tribal community by matching, in an innovative way, supply and demand. This is typically done by co-creating shared commonality, developing scalable electronic platforms, and building trust into platforms using social media to develop proxy social capital. Consequently, by using existing ecosystems of social media, tribal communities can be formed and scaled much more quickly than via traditional marketing approaches.
Genetic subpopulations of Varroa mites and their Apis cerana hosts in Thailand.

La repartition geographique des especes de Varroa correspond en gros a la repartition des lignees d'ADN mitochondrial (ADNmt) de leur hote. Apis ceranaFabr. : V. destructor est present sur A. cerana en Asie continentale, V. jacobsoni sur A. cerana du Sundaland (Indonesie, Malaisie, et Brunei) et l'espece sans nom des Philippines sur A. cerana des Philippines (Fig. 1). La peninsule thaimalaisienne presente une occasion unique d'etudier les relations hote-parasite puisque qu'on y rencontre deux lignees d'A. cerana (Asie continentale et Sundaland) et deux especes de Varroa (V.jacobsoni et V. destructor). On a preleve dans 77 colonies sauvages et semi-domestiquees d'A. cerana reparties en 30 localites de Thailande (Fig. 2 et Tab. I) des abeilles et leurs acariens parasites Varroa. Les lignees d'A. cerana ont ete determinees par sequencage d'une region non codante de l'ADNmt. L'espece et la lignee mitochondriale de Varroa ont ete determinees par le sequencage d'une portion du gene de la cytochrome oxydase 1 (COI) et par l'absence ou la presence d'un site de restriction caracteristique dans COI. A. cerana d'Asie continentale (n = 40) et du Sundaland (n = 37) viennent en contact au niveau de l'isthme de Kra (latitude 10°34'N environ) (Figs. 1 et 2). V. destructor (n = 8), ni V. jacobsoni (n = 68) n'ont ete trouves en Thailande, mais leurs aires de repartition ne se rencontrent pas pres de l'ecotone (frontiere entre deux ecosystemes) de Kra. Comme attendu, nous avons trouve V. jacobsoni sur A. cerana du Sundaland au sud de l'ecotone de Kra. Par contre nous l'avons trouve egalement bien au nord de l'ecotone de Kra sur A. cerana du continent asiatique. A quelques exceptions pres, V. jacobsoni surA. cerana du Sundaland possedait le genotype NorthThail ou NorthThai 2. Varroa destructor n'a ete trouve que dans les provinces de Chiang Mai et de Chiang Rai, audessus de 1000 m d'altitude ; seul l'haplotype du Vietnam de V. destructor a ete detecte. Nous n'avons pas trouve de preuve de l'existence de l'haplotype « Japon-Thailande » de V. destructor sur A. cerana en Thailande, et aucune preuve d'aucun type de V. destructor sur A. cerana dans la region de Bangkok. Les mentions anterieures de l'haplotype « Japon-Thailande » de V. destructor sur A. cerana en Thailande etaient probablement des erreurs; ces acariens ont probablement ete preleves sur des abeilles A. mellifera importees.
DROUGHT REDUCES ROOT RESPIRATION IN SUGAR MAPLE FORESTS

Soil moisture deficits can reduce root respiration, but the effects have yet to be quantified at the stand level or included in models of forest carbon budgets. We studied fine-root (≤1.0 mm diameter) respiration in four sugar maple forests for three growing seasons in order to assess the combined effects of temperature, N concentration, and soil moisture on respiration rates. Fine-root respiration at the four sites was exponentially related to soil temperature and linearly related to root N concentration and soil moisture availability. Most of the variability in respiration rates was explained by temperature. Differences in soil moisture availability explained temporal variation within sites in respiration rate at a given temperature, whereas differences among sites in respiration rates resulted from site-specific differences in fine-root N concentration. Periodic moisture deficits during 1995 and 1996 were sufficient to cause declines of up to 17% in total growing-season root respiration at affected sit.
Collaboration Across EU Boundaries: The Use of the 'Foreign Expert' in Aiding Improvement in Teacher Education

The research for this article resulted from international team re- views/validations of teacher education courses in a variety of Eastern European Countries. Visits involved examination of documents, observations of student course work and meetings and discussions with tutors, managers, students and employers from a variety of higher education organisations in new EU countries. Informal and formal discussions also occurred with team members and with repre- sentatives of education ministries and quality assurance personnel. The results showed that empathy, attentive listening skills and dialogue allied to firmly set goals could, in a very short time, help individuals and organisations to face up to the challenge of change and themselves bring about changes in thinking and behav- iour which resulted in a move from a tutor/instructor dominated model of teacher education to one where the needs of the student were in the forefront. The changes accomplished in a short time were in some cases astonishing and staff involved in this revolution must be congratulated, as should be the foreign experts who helped them, together with the countries who laid themselves open to such a demanding process. The research duration was over five years and involved revis- its to many organisations where only limited approval for courses, or course clo- sure had been initially recommended. It was possible therefore to observe the pat- terns of emerging change.
Regional devolution and regional economic success : enabling myths and illusions about power.

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OSCILLATORY FLOW INVESTIGATIONS IN POROUS MEDIA

A series of experiments has been conducted at the Coastal Engineering Laboratory of Queen's University in order to investigate the characteristics of accelerating flow through porous media. The nature of the steady flow law in coarse granular material has been reasonably well defined from a large number of previous studies. Variations on this steady flow law have been applied to the case of oscillatory flow, in numerical models of forces in breakwaters for example, with the explicit assumption that the steady law is applicable to the unsteady case. Few experimental investigations have been conducted to verify this assumption. Hence the present study was designed specifically to test the applicability of the steady flow law (Forchheimer's equation) to oscillatory flow.
Economic evaluation of spotted knapweed [Centaurea maculosa] control using picloram.

Spotted knapweed is the most serious range weed problem in western Montana. Although picloram is often used to control knapweed, the economic feasibility of the practice has not been evaluated. We developed a model to economically evaluate spotted knapweed control on rangeland. Model functions describing the dynamics of the plant community preceding and following treatment were derived from field observations in western Montana. Economic returns per management unit were calculated for 3 scenarios: (1) no treatment, (2) containment, and (3) eradication of spotted knapweed. After tax costs and benefits of treatments were analyzed for a 20-year period and discounted to the present. An economic loss in current dollars of S2.38/ha was incurred under the no treatment strategy when 25% of the management unit was initiaily inlested with spotted knapweed and the weed was spreading to new acres and replacing desirable forage. After-tax present value of added AUMs in the eradication strategy was greater than the after-tax present value of added costs, S3.41/ha and Sl . 99/ha, respectively. As site productivity, value of an AUM, and rate of knapweed spread to new acres increased, economic returns increased relative to treatment costs. In contrast, herbicide treatment became leas cost-effective as knapweed utilization by livestock increased. Thus, economic feasibility of spotted knapweed control varied with economic and biologic conditions.
A multiresolution information measure approach to speech recognition

When automatic speech recognition systems trained with clean signals are tested with noisy signals, deterioration in their performance have been observed. Continuous multiresolution entropy have shown to be robust to additive noise in applications to different physiological signals and, in particular, in some speech signal contexts. In this paper we present its extension to different divergences and we propose them as new dimensions at the pre-processing stage of a speech recognizer. Methods proposed here are tested with speech signals corrupted with babble and white noise. Their performance are compared with the classical mel cepstra parametrization. Results suggest that continuous multiresolution entropy related measures provide valuable information that could be considered as an extra component in a pre-processing stage.