Miracle-dz/UniFAR-FTUs huggingface dataset:
Crossing the Threshold from Founder Management to Professional Management: A Governance Perspective

We argue that the challenges faced by threshold firms are deeply rooted in governance characteristics (i.e. the incentives, authority and legitimacy) which imbue them with characteristic capabilities, disabilities and path dependencies. Whereas Zahra and Filatotchev (2004) reason the principal problem facing threshold firms relates to organizational learning and knowledge management, we posit resource acquisition and utilization to be equally important. Moreover, we argue governance theory is more able than a knowledge-based perspective to explain the "root causes" of the learning and resource issues faced by threshold firms as well as the complex set of processes involved in their effective management. Copyright Blackwell Publishing Ltd 2004.
olpc - messages for a community approach in education

Within the theme of ―Curriculum, technology and transformation for an unknown future‖ it seems appropriate to present an image of seeing and doing things differently that comes from outside of formal education. The context for this story comes from working as part of the NGO one laptop per child (olpc) community in New Zealand. The impact of the global olpc movement has been widely accepted as transformative in its mission to enable children‘s agency in learning and participation in knowledge building communities. It is a vision that frames future learning within highly fluid and unstable spaces. In this paper the focus will be on a local community network that supports this project. Members of the NZ olpc volunteer community largely learn through informal means. Their learning spaces are both physical and virtual. They are spread across New Zealand and are connected to diverse global networks, where they can access ―mentors‖ and co-learners using Web 2.0 internet based technologies.
Improved the AlGaN-Based Ultraviolet LEDs Performance With SuperLattice Structure Last Barrier Volume 10 , Number 4 , August 2018

In this paper, a structure of super-lattice structure last barrier (SLSLB) is proposed, which can be applied into the AlGaN-based ultraviolet light-emitting diodes (LEDs) for improving the injection of both electrons and holes. Several other SLSLBs are also designed and compared in this work, and according to the simulated results, we find that the LED with SLSLB of diminishing thickness (SLSLB-D) possesses the highest internal quantum efficiency and the smallest efficiency droop. The SLSLB-D can effectively reduce the electron concentration at the interface between the last barrier (LB) and electron block layer (EBL), which relieves the leakage of electrons. Moreover, the best hole injection capability for the LED with SLSLB-D also contributes to the improved optical performance.
Is there a Gatsby Curve for Educational Attainment in Arab Countries

Abstract This is to assess intergenerational mobility and inequalities in educational attainment in Arab countries with the aim of finding out about the existence of a Gatsby curve for education. The existence of links between intergenerational mobility and inequalities provide useful insights to new inclusive economic policies. The paper uses descriptive and regression analyzes based on Barro and Lee data (2014) for the period 1950-2010. The attained results confirm the existence of a relationship between education mobility and inequality in educational attainment. This negative relationship between inequalities and intergenerational mobility in education attainment confirms the existence of Gatsby curve for education in Arab countries. This allows for new directions for further economic policies for reducing education inequalities and enhancing more access of new generations to knowledge, in Arab countries.
Demand and Competition Among Supply Sources: The Indonesian Fruit Import Market

Abstract Indonesia is a rapidly growing and competitive market for U.S. fruit. A restricted, source-differentiated, almost ideal demand system is estimated for apples, oranges, grapes, and other fruit in Indonesia. The Marshallian expenditure elasticities for U.S. fruit are estimated to be between 1.01 and 1.21. For grapes and oranges, competition with other fruits appears to be more important than competition with other supply sources. For apples, strong sourcedifferentiated substitution relationships are found.
Forecasting the Exchange Rate for USD to RMB using RNN and SVM

One of the most important mechanisms supporting world trade is the exchange rate. Depreciation or appreciation of any currency, especially those main currencies such as US dollar, Pound sterling, Renminbi, could greatly affect international trade leading to greater impact to businesses and people’s wellbeing. Recently, researchers have been exploring the use of machine learning techniques to forecast time series data in the financial area. This paper will use machine learning techniques, namely Recurrent Neural Network (RNN), Support Vector Machine (SVM), and a traditional model, namely the ARIMA model which is selected as a benchmark. The result shows that RNN has the best performance compared with both SVM and ARIMA. This paper aims to forecast the exchange rate for USD to RMB, which could give the involved country, institution or people the foresight of the situation and prepare for risk.
03TCQ - PRODUCTION OF AMMONIUM NITRATE IN THE VORTEX GRANULATORS: RECYCLING OF PRODUCTION WASTE ARTYUKHOV,

Abstract Production of ammonium nitrate granules is energy-intensive process that is accompanied by the release of a sufficiently large number of gaseous nitrous oxide N2O. Furthermore, the production process of granular ammonium nitrate by the tower method or in fluidized bed it is inevitable losses in the form of unmarketable (small) fraction and dust. The main objective of the research is the substantiation the possibility of using vortex devices for recycling of ammonium nitrate. The problem of waste disposal in the production of ammonium nitrate is described. Methods for processing of waste gases and ammonium nitrate granules are presented. Some of the advanced methods of waste disposal are described in detail. The mathematical description results of the vortex and vortex ejector plates will be based on the methods of engineering calculation of utilization equipment. Experimental lapping of the recycling module constructed using the above provisions, suggests their correlation to account for the chemical reactions in the flow path of utilizing the module. In the future, a detailed description of the study and other methods of waste disposal of ammonium nitrate is plan.
IGF-1 Gene Polymorphisms Influence Bovine Growth Traits in Chinese Qinchuan Cattle

Insulin-like growth factor I (IGF-1) influences gonadotrophin-releasing hormone (GnRH) neurons during puberty, and plays an important role in muscle growth in farm animals. The objective of this study was to estimate the genotype frequencies of the polymorphisms of IGF-1 and to determine associations between these polymorphisms and growth traits in Chinese Qinchuan cattle breeds. Five single nucleotide polymorphisms (SNPs), including one in intron 2 (g.5172T>G) and four in intron 3 (g.56495C>A, g.56501C>T, g.56801C>T and g.71090T>G) were identified according to the sequencing results of 487 individual of a Qinchuan cattle population. The chi-square test showed g.5172T>G, g.56495C>A and g.56801C>T were in Hardy-Weinberg equilibrium in all the samples. Six different haplotypes were identified, of which two major haplotypes had a frequency of 48.2% (-TCTTT-) and 16.3% (-TCCTT-). The single marker association analysis showed that the three polymorphisms (g.5172T>G, g.56501C>T and g.71090T>G) were significantly associated with growth traits (at P<0.01 or P<0.05). In conclusion, our results suggest that some polymorphisms in IGF-1 may play a role in determining one of the important genetic factors that influence growth traits in Chinese Qinchuan cattle.
Non-equilibrium Structural Phase Transformations in Atomically Thin Transition Metal Dichalcogenides

The use of a rapid heating rate (25 °C/sec) to temperatures above 600 °C leads to the formation of highly ordered, crystalline hexagonal islands of sizes of less than 20 nm that are composed of a mixture of both the 2H and 3R phase (Figure 1). In contrast, the use of a slow heating rate (25 °C/min) leads to the formation of ultra-nanocrystalline, sub-stoichiometric, and amorphous structures (Figure 2). The difference in the observed structural rearrangements can be explained by considering how the different rates of sulfur evaporation affect subsequent interaction with unbound molybdenum atoms on the
Externalities in Charitable Crowdfunding

This study examines how the existence of multiple charitable campaigns supporting similar causes on the same platform influence the donations received by each campaign. The existence of multiple campaigns supporting similar causes can have negative externalities as they compete for donors. However, the existence of additional campaigns can also result in positive externalities as potential donors benefit from a larger variety of projects to choose from. This study observes negative and positive externalities from the existence of multiple campaigns supporting similar causes. An increase in the number of campaigns leads to a decrease in the average donation received by each campaign, indicating that the additional campaigns do not necessarily expand the market. However, when some of the campaigns perform exceptionally well, other campaigns – including non-top performing campaigns – receive more donation, highlighting the market expansion effect of the presence of successful campaigns on a platform.
Pycnogonida of the Southeast Pacific Biological Oceanographic Project (SEPBOP)

Child, C. Allan. Pycnogonida of the Southeast Pacific Biological Oceanographic Project (SEPBOP). Smithsonian Contributions to Zoology, number 526, 43 pages, 16 figures, 1992. —Pycnogonida from the SEPBOP Expeditions and additional unreported specimens from other collections are described. They contain 30 described species, with an additional 10 newly described and 4 undescribed for lack of suitable specimens. The newly described species are Ammothea insularis, Ascorhynchus comatum, A. paxillum, Prototrygaeus contrarius, Tanystylum cinctum, Pallenopsis (P.) notiosa, P. (P.) truncatula, Nymphon similis, Anoplodactylus bruuni, and A. vulcanus. Five additional known species are re figured or figured for the first time to clarify their validity and they are redescribed where necessary. These species are Ammothea dorsiplicata (Hilton), Ammothella heterosetosa Hilton, Eurycyde longiselosa Hilton, E. spinosa Hilton, Pycnolhea selkirki Loman, and Rhynchothorax barnardi Child and Hedgpeth. Previous literature on South American Pacific pycnogonids is reviewed and the zoogeography of each species is discussed. OFFICIAL PUBLICATION DATE is handstamped in a limited number of initial copies and is recorded in the Institution's annual report, Smithsonian Year. SERIES COVER DESIGN: The coral Montastrea cavernosa (Linnaeus). Library of Congress Cataloging-in-Publication Data Child, C. Allan Pycnogonida of the Southeast Pacific Biological Oceanographic Project (SEPBOP) / C. Allan Child, p. cm. (Smithsonian contributions to zoology ; no. 526) Supt of Docs, no.: SI 1.27:526 1. Pycnogonida-Pacific Coast (South America) 2. Pycnogonida-South Pacific Ocean. 3. Pycnogonida-Catalogs and collections. I. Title. II. Title: Southeast Pacific Biological Oceanographic Project (SEPBOP) III. Series. QL1.S54 no. 526 [QL447] 591 s-dc20 [595.3'94091648] 91-40763 © The paper used in this publication meets the minimum requirements of the American National Standard for Permanence of Paper for Printed Library Materials Z39.48—1984.
Association between Tricuspid Annular Plane Systolic Excursion, Systolic Blood Pressure and Peak Systolic Velocity among Young Healthy Adults

Tricuspid Annular Plane Systolic Excursion (Tapse) and peak systolic velocity (PSV) are important parameters used as reference in diagnostic procedure during normal and pathological conditions of cardiovascular health. We investigated association between TAPSE, Systolic blood pressure (SBP) and carotid artery peak systolic velocity in a group of 150 healthy young adults between ages (18 and 30 years) with normal vital statistics and no established history of underlying heart conditions. Systolic blood pressure was taken using auscultatory method, while ultrasound scan was used for TAPSE and PSV. Pearson’s correlation analysis of data, for Tapse and systolic blood pressure showed no correlation, r = -0.025, but for Tapse and PSV a very weak positive correlation, r = 0.1; Meanwhile a comparison of the mean Tapse between male and female gender showed that Tapse in male (24.17 ± 3.92 mm) was not significantly different from female (23.60 ± 4.43 mm). The results imply that in the study population, right ventricular function which is evaluated by the value of Tapse is not associated with systolic blood pressure, but has very weak correlation with PSV. Also, there does not appear to be significant difference in this function across gender.
Trade union responses to precarious employment: the role of power resources in defending precarious flight attendants at Ryanair

Drawing on a case study on the civil airline industry in Portugal, this article addresses the impact of precarious employment on trade union action and examines the conditions under which trade unions defend precarious workers’ interests. Using a power-resource theoretical framework, findings in this article highlight that cost-cutting employment practices are used strategically by employers to curb collectivisation and trade unionism. In addition, this article shows that when trade unions engage in an inclusive strategy to defend precarious workers’ interests, the compounded and inter-linked effect of trade union power resources, network embeddedness and international solidarity may be key to achieving success. S’appuyant sur une étude de cas portant sur l’industrie du transport aérien civil au Portugal, cet article traite de l’impact de l’emploi précaire sur l’action syndicale et examine les conditions dans lesquelles les syndicats défendent les intérêts des travailleurs précaires. À partir d’un cadre théorique fondé sur les ressources du pouvoir, les conclusions de cet article soulignent que les pratiques de réduction des coûts de l’emploi sont utilisées de manière stratégique par les employeurs pour freiner la collectivisation et le syndicalisme. En outre, cet article montre que lorsque les syndicats s’engagent dans une stratégie inclusive pour défendre les intérêts des travailleurs précaires, les effets combinés et interdépendants des ressources de pouvoir des syndicats, de leur ancrage dans les réseaux et de la solidarité internationale peuvent être la clé du succès. Der vorliegende Artikel beruht auf einer Fallstudie über die zivile Luftfahrt in Portugal und befasst sich mit den Auswirkungen prekärer Beschäftigung auf gewerkschaftliches Handeln sowie mit den Bedingungen, unter denen die Gewerkschaften die Interessen prekär beschäftigter Arbeitnehmer wahrnehmen. Die Autoren nutzen den Rahmen der Machtressourcentheorie für ihre Untersuchung und kommen zu dem Schluss, dass kostensenkende Beschäftigungspraktiken von Arbeitgebern strategisch genutzt werden, um gegen kollektives Handeln und Gewerkschaftsbewegung zu agieren. Darüber hinaus zeigt der Artikel, dass es für die Gewerkschaften ein Schlüssel zum Erfolg sein kann, wenn sie zur Wahrnehmung der Interessen prekär beschäftigter Arbeitnehmer eine inklusive Strategie nutzen, die auf sich gegenseitig verstärkende und ergänzende gewerkschaftliche Machtressourcen, Einbettung in Netzwerke und internationale Solidarität setzt.
Does Schooling Increase or Reduce Social Inequality

Does experience in school increase or reduce social inequality in skills? Sociologists have long debated this question. Drawing from the counterfactual account of causality, we propose that the impact of going to school on a given skill depends on the quality of the instructional regime a child will experience at school compared with the quality of the instructional regime the child would receive if not at school. Children vary in their benefit from new instruction, and current skill increases this benefit. We hypothesize that the expansion of free, universal schooling promotes social equality in part by equalizing access to school, but also because disadvantaged children benefit more from access. However, we predict that this equalizing effect will be more pronounced for younger children than for older children. To test these hypotheses, we review empirical evidence regarding the impact of (a) increasing access to universal kindergarten and preschool, (b) interrupting schooling with the summer recess, (c.
Carbon Sequestering Bio Concrete as a Solution to Growing Atmospheric Concentrations of CO 2

High levels of anthropogenic carbon dioxide (CO2) emissions into the atmosphere are propelling climate change, which has been proven to be highly detrimental to the planet. Cement production for the construction industry is a leading cause of these harmful carbon emissions. This project introduces a potential solution to this issue in the form of a new biological concrete that is treated with carbon sequestering bacteria of the Bacillus family to remove CO2 from the atmosphere. The consolidated research presented in this project will explain the biology behind this process, and how it can be implemented in construction to reduce atmospheric CO2 concentrations. Additionally, this paper will evaluate the feasibility of implementing CO2 sequestering concrete in construction on the basis of its strength and cost. Finally, new knowledge will be recorded in the form of interviews of industry professionals to clearly illustrate how carbon sequestering bio concrete could be implemented in construction.
Inflation rate impact on the share returns of real sector companies in AP Vojvodina

Taking into account the current trends in the domestic financial market, the subject of this research is the analysis, testing and quantification of the inflation rate impact on the daily share returns of the real sector companies in AP Vojvodina. The aim of the research is to generate concrete, practically tested and quantified knowledge about the possibilities and efficiency of the GARCH models application to quantify the inflation rate impact on the share returns of the observed companies. The period covered by the survey is from 2006 to 2016 and it includes the real sector companies of AP Vojvodina whose shares are quoted within the stock exchange index BELEXline. The research results show the exact correlation between the daily return rates of the observed companies and the financial risk factor - the inflation rate. The results also show a positive impact of the variable inflation rate on the returns of companies NIS a.d (0.013876), Sojaprotein a.d (0.019167) and Vital a.d (0.051056), and a negative impact on the returns of the company Veterinary Institute a.d (-0.000183). The research results confirm the role and significance of the application of econometric models in order to quantify financial risk factors of returns from investment activities in the real sector companies of AP Vojvodina.
PREDICTING POLL TRENDS WITH FACIAL EMOTIONS : A NEURAL NETWORK APPLIED TO EMOTIONS FROM PHOTOS OF POLITICIANS IN THE ONLINE PRESS MASTER

Little attention has been paid so far on applying facial emotion recognition to politics. Is it possible to highlight a link between emotion detected on candidates pictures and voting intentions in a political election ? Trying to answer this question, we use the recent French 2017 presidential election as a case study to predict poll trends based on the emotions in pictures of the candidates in the press. The Microsoft Emotion API has been put to use in order to provide the emotional data as a basis for our study. A Multi Layer Perceptron, a type of Artificial Neural Network is implemented to predict the poll slope sign. We find that there is a moderate correlation in our sample between the concepts of facial emotions of political candidates and poll trends, our algorithm reaching 64% accuracy.
Circles in Riemannian symmetric spaces

We show that every circle in a compact Riemannian symmetic space of rank one is obtained as an orbit of a one parameter subgroup of lsometπes. We also show that a homogeneous space with the above property is either a Euclidean space or a Riemannian globally symmetric space of rank one. Introduction Let (M, g) be a Riemannian manifold and V the Riemannian connection of (M,g). An arc-length parametrized curve c(ή in (M,g) is called a circle if there exist a unit vector field Y(ή along c(ή and a positive constant k such that The constant k is called the curvature of the circle. Let {X, Y} be an arbitrary pair of mutually orthogonal unit vectors in TPM at a, point p e M and A: be a positive constant. There exists a unique circle c : (—ε,ε) —> M with the initial condition c(0)=/>, c(0)=X, (Vέc)(0)=kY for sufficiently small ε. It is known that in a complete Riemannian manifold every circle can be defined for — oo < t < oo. Recently Adachi, Maeda and Udagawa [3] studied the circles in a complex projective space P(C) of constant holomorphic sectional curvature. For instance, they proved that a circle in P(C) is characterized by the curvature k and the complex torsion. Adachi [1] studied the similar problem for a quaternion projective space and its non-compact dual. Adachi and Maeda also studied circles in complex hyperbolic space [2]. One of the purpose of this paper is to generalize their results to circles in compact Riemannian symmetric spaces of rank one. 1991 Mathematics Subject Classification. 53C40.
Anti-bacterial/fungal and anti-cancer performance of green synthesized Ag nanoparticles using summer savory extract

Abstract Nowadays, the expansion of nanoparticles as antimicrobial and anticancer agents is one of the most exciting methods for cancer therapy and microbial diseases that can vanquish the problems of drug resistance. In this research, the biosynthesis of silver nanoparticles (AgNPs) was stated using Summer Savory extract. Moreover, these AgNPs by UV-Vis spectroscopy, FTIR, XRD, FESEM, EDX, PSA, and zeta potential analysis were characterized, and by antimicrobial and anti-cancerous performance was evaluated. The maximum absorption peak at 472 nm by UV-Visible spectra confirmed the formation of Ag nanoparticles. The results obtained by FT-IR determined the presence of organic compounds such as amines, alkenes, alcohols, phenols, which performed significant roles in the fixating of these nanoparticles. The results obtained from FESEM, EDX, PSA, and Zeta Potential Analysis revealed that synthesized AgNPs had a hexagonal structure with a size ranging from 10 to 100 nm. The antimicrobial properties of the synthesized AgNPs were examined by Minimum Inhibitory Concentration, Minimum Bactericidal Concentration, and Minimum Fungal Concentration against five microbial strains included Klebsiella pneumonia, Escherichia coli, Enterococcus faecalis, Staphylococcus aureus, and Saccharomyces cerevisiae. The results demonstrated that biosynthesized AgNPs had the most antimicrobial activity, especially against E. Coli. The anti-cancerous results of these nanoparticles through MTT assay demonstrated exceptional anticancer effects against K-562 and MCF-7 human cancer cell lines with IC50 values 50 and 200 µg/ml, respectively.