Miracle-dz/UniFAR-FTUs huggingface dataset:
A Financial Conditions Index for South Africa

The main purpose of this paper is to construct a financial conditions index (FCI) for South Africa. The analysis extracts the index by applying two alternative approaches (principal component analysis and Kalman filter), which identify an unobservable common factor from a group of external and domestic financial indicators. The alternative estimated FCIs, which share a similar trajectory over time, seem to have a powerful predictive information for the near-term GDP growth (up to four quarters), and they outperform the South African Reserve Bank’s (SARB) leading indicator as well as individual financial variables. Their recent dynamics suggest that following a strong recovery in late-2009 and 2010, reflecting in part domestic factors such as systematic reductions in the policy rate, the rebound in real economic activity, and a benign inflationary environment, the financial conditions have deteriorated in recent months, though not as sharply as in end-2008. Given their relatively high predictive power regarding GDP growth, a further deterioration may imply that economic activity is likely to slow in the period ahead.
Intergovernmental Relations and Fiscal Discipline: Between Commons and Soft Budget Constraints

Fiscal decentralization is likely to entail a bias in the budget process toward higher public expenses and deficits. The paper reviews lessons drawn from the theoretical literature and international experience on the design of intergovernmental relations. The institutional setup should address the dual problem of "common tax resources" and "soft" budget constraints, where policies devised to correct one problem may exacerbate the other. An approach based on full tax autonomy of lower-tier governments and reliance on market discipline, not supplemented by self-imposed constitutional limits, is not advisable. More effective seems to be a cooperative approach with some preeminence granted to the central government.
Towards Understanding and Answering Multi-Sentence Recommendation Questions on Tourism

We introduce the first system towards the novel task of answering complex multisentence recommendation questions in the tourism domain. Our solution uses a pipeline of two modules: question understanding and answering. For question understanding, we define an SQL-like query language that captures the semantic intent of a question; it supports operators like subset, negation, preference and similarity, which are often found in recommendation questions. We train and compare traditional CRFs as well as bidirectional LSTM-based models for converting a question to its semantic representation. We extend these models to a semisupervised setting with partially labeled sequences gathered through crowdsourcing. We find that our best model performs semi-supervised training of BiDiLSTM+CRF with hand-designed features and CCM(Chang et al., 2007) constraints. Finally, in an end to end QA system, our answering component converts our question representation into queries fired on underlying knowledge sources. Our experiments on two different answer corpora demonstrate that our system can significantly outperform baselines with up to 20 pt higher accuracy and 17 pt higher recall.
The Effects of Stock Splits on Bid‐Ask Spreads

This paper examines the effects of stock splits on bid-ask spreads for NYSE-listed companies. Percentage spreads increase after splits, representing a liquidity cost to investors. These spread increases are directly related to decreases in share prices following splits and can explain part, but not all, of the observed increase in return variability after splits. The evidence, thus, suggests a liquidity cost of stock splits that must be weighed against any other perceived benefits of splits. Such a liquidity cost may validate that stock splits are a signal of favorable information about the firm. Copyright 1990 by American Finance Association.
The Influence of Perceived Social Support on Medication Adherence in First-Episode Psychosis

Objective: Our study examines the unique influence of social and family support on adherence to medication in a sample of patients treated for first-episode psychosis (FEP). Method: Social and family support using the Multidimensional Scale of Perceived Social Support and medication adherence (consensus of subjective and objective data) were evaluated on a monthly basis during a 6-month period in a sample of 82 FEP patients. The relation between social support and adherence was evaluated using correlational and linear regression analyses, controlling for other relevant variables. A longitudinal analysis using hierarchical linear models was conducted to model change in adherence over time. Results: Monthly correlations between social support and adherence were significant at 4 of 7 time points during a 6-month period. There was a modest correlation between the percentage of months of good adherence and the average level of family support across the study period. The linear regression failed to demonstrate a significant relation between baseline social support and overall adherence during the entire study period. Change in social support over time was inversely associated with change in adherence. Conclusions: Our study emphasizes the concurrent influence of social (mostly family) support on adherence but this effect does not persist over time. Changes in the degree of social support may have a complex effect on changes in adherence.
Cellular profiles in asthmatic airways: a comparison of induced sputum, bronchial washings, and bronchoalveolar lavage fluid.

BACKGROUND: Analysis of bronchoalveolar lavage fluid has improved our understanding of the pathogenesis of asthma. Safety issues and access to expert resources limit this techniques as a research tool. Induced sputum is a non-invasive method of collecting airway fluid which is applicable to subjects with a range of severity of airflow obstruction. The method of sputum collection and processing differs between groups. A study was undertaken to compare induced sputum with bronchoscopically collected fluid. METHODS: Sixteen patients with mild stable asthma underwent both sputum induction and bronchoscopic examination with bronchial washings and bronchoalveolar lavage (BAL) in random order, with each procedure being separated by an interval of 12 days. Airway fluid was processed and stained for differential cell counting. RESULTS: Induced sputum was relatively rich in neutrophils and eosinophils compared with bronchial washings and BAL fluid (mean (SE) 1.3 (0.4)%, 5.0 (2.7)%, and 36.4 (3.7)% neutrophils and 0.6 (0.1)%, 1.6 (0.6)%, and 3.3 (1.1)% eosinophils in BAL fluid, bronchial washings, and induced sputum, respectively). The proportions of cells obtained at sputum induction correlated with those in bronchial washings but not BAL fluid (r = 0.6 and 0.7 for neutrophils and eosinophils, respectively, p < 0.05). By contrast, induced sputum had a lower proportion of lymphocytes and macrophages than bronchial washings or BAL fluid, without any correlation. CONCLUSION: Induced sputum is rich in neutrophils and eosinophils and poor in lymphocytes, suggesting an origin in the larger airways. Induced sputum adequately reflects the findings in fluid collected by direct bronchoscopy.
Multimarket Contact and Economic Performance

FOR the economy to work well, resources should flow freely from one industry to another in response to changing demands and costs. In textbooks, this process is via the capital market and entry and exit of firms. But entry can be by new firms or existing ones through diversification. Williamson (1970) and Weston (1970) stress advantages of internal capital transfers over the market. ' Gort (1962, p. 4) and Rumelt (1974, p. 2) state multimarket operation of firms will speed redeployment of resources in response to profitable opportunities. They would be right if multimarket operation were not coincident with multimarket contact. While diversified companies may have advantages that would facilitate the movement of capital, they have enhanced opportunity for coordination if they meet in several markets. I term multimarket grouping the phenomenon of groups of diversified firms whose activities span to a significant extent the same markets. Multimarket grouping of sellers could reduce the flow of resources, thereby inhibiting a socially desirable competitive process, if it proceeded until mutual dependence among diversified sellers was recognized and reduction in competition coordinated, tacitly or otherwise. In short, where sellers have grown large through diversification, resources may not be efficiently reallocated among markets in response to changing conditions because interdependent groups of sellers recognize that reduces their profits. Even then, in a frictionless world, sellers other than those in the multimarket group could move resources into profitable areas. I reject such a frictionless world given evidence such as Mueller's (1977b) and the general theory of barriers to mobility (Caves and Porter, 1977). Those sellers having grown interdependent across markets are those who would have been most likely to enter given new profitable opportunities. Capacity expansion given such opportunities should be less rapid than if the multimarket interdependence did not exist. Is it in fact that just as with market concentration, not only the philosophy embodied in the Jeffersonian ideal, but economic efficiency provides grounds for concern about aggregate concentration when it coincides with multimarket grouping? This paper introduces methodology for measuring the significance of grouping and shows that when significant and coincident with high seller concentration, multimarket grouping does have economic implications. That coincidence, ceteris paribus, leads to higher profits. The question is whether those profits result from coordinated behavior or lower costs or both. The evidence suggests they are the result of "economies" of multimarket operation and barriers to the mobility of resources from outside the interdependent groups of sellers. Profits are lower for lines of business where multimarket contact is high but seller concentration is low, but higher when both contact and concentration are high than when concentration alone is high.
Responsive Regulation: Transcending the Deregulation Debate

This book transcends current debate on government regulation by lucidly outlining how regulations can be a fruitful combination of persuasion and sanctions. The regulation of business by the United States government is often ineffective despite being more adversarial in tone than in other nations. The authors draw on both empirical studies of regulation from around the world and modern game theory to illustrate innovative solutions to this problem. Their ideas include an argument for the empowerment of private and public interest groups in the regulatory process and a provocative discussion of how the government can support and encourage industry self-regulation.
The Balassa-Samuelson Hypothesis in Estonia: Oil Shale, Tradable Goods, Regulated Prices and Other Culprits

This paper analyses the Balassa-Samuelson (B-S) framework for the case of Estonia using a unique dataset that consists of a 15-sectoral breakdown of GDP and a five-digit level CPI disaggregation with 260 items over the period from 1993 to 2002. Unlike the existing literature, the paper focuses on the following four aspects of the phenomenon: (a) data disaggregation, (b) definition of goods tradability, (c) price regulatedness in services and (d) possible heterogeneity across transition countries. It turns out that the first three aspects do matter and, in addition to this, Estonia appears to bear very specific characteristics when compared with other transition countries. A battery of cointegration techniques (DOLS, ARDL, Johansen) shows that productivity is strongly related to relative prices only when regulated prices are controlled for appropriately in the consumer price index and when country-specific classification is applied to the open and closed sectors. The B-S effect contributed to CPI by 1 to 1.5 per cent at the outset of the period and by 0.4 to 0.6 per cent in 2002, whereas its potential long-run impact is estimated to be 1 to 1.2 per cent. Although real appreciation due to the B-S effect seems higher in the early 1990s, it explains that better real appreciation occurred in recent years.
The National Football League season wins total betting market: The impact of heuristics on behavior

Sports and racetrack betting markets have been investigated by researchers for more than 50 years. Many authors have argued that the observed biases and inefficiencies in these markets are a consequence of bettors incorrectly assessing the objective probabilities that favorites or underdogs will win. This article is the first examination of the National Football League season wins total over/under betting market where the designations of favorite and longshot do not apply. The market is found to be highly inefficient, providing several opportunities for profitable wagering. We believe these inefficiencies are a consequence of the representativeness heuristic. Most significantly, there is evidence that bettors, when considering teams with strong records in the previous season, overreact to historical performance and fail to recognize the statistical phenomenon of regression to the mean.
A Curious Robot Learner for Interactive Goal-Babbling : Strategically Choosing What, How, When and from Whom to Learn. (Un robot curieux pour l'apprentissage actif par babillage d'objectifs : choisir de manière stratégique quoi, comment, quand et de qui apprendre)

The challenges posed by robots operating in human environments on a daily basis and in the long-termpoint out the importance of adaptivity to changes which can be unforeseen at design time. The robot mustlearn continuously in an open-ended, non-stationary and high dimensional space. It must be able to knowwhich parts to sample and what kind of skills are interesting to learn. One way is to decide what to exploreby oneself. Another way is to refer to a mentor. We name these two ways of collecting data sampling modes.The ﬁrst sampling mode correspond to algorithms developed in the literature in order to autonomously drivethe robot in interesting parts of the environment or useful kinds of skills. Such algorithms are called artiﬁcialcuriosity or intrinsic motivation algorithms. The second sampling mode correspond to social guidance orimitation where the teacher indicates where to explore as well as where not to explore. Starting fromthe study of the relationships between these two concurrent methods, we ended up building an algorithmicarchitecture with a hierarchical learning structure, called Socially Guided Intrinsic Motivation (SGIM). We have built an intrinsically motivated active learner which learns how its actions can produce variedconsequences or outcomes. It actively learns online by sampling data which it chooses by using severalsampling modes. On the meta-level, it actively learns which data collection strategy is most eﬃcient forimproving its competence and generalising from its experience to a wide variety of outcomes. The interactivelearner thus learns multiple tasks in a structured manner, discovering by itself developmental sequences.
Phosphate Starvation Root Architecture and Anthocyanin Accumulation Responses Are Modulated by the Gibberellin-DELLA Signaling Pathway in Arabidopsis1[OA]

Phosphate (Pi) is a macronutrient that is essential for plant growth and development. However, the low mobility of Pi impedes uptake, thus reducing availability. Accordingly, plants have developed physiological strategies to cope with low Pi availability. Here, we report that the characteristic Arabidopsis thaliana Pi starvation responses are in part dependent on the activity of the nuclear growth-repressing DELLA proteins (DELLAs), core components of the gibberellin (GA)-signaling pathway. We first show that multiple shoot and root Pi starvation responses can be repressed by exogenous GA or by mutations conferring a substantial reduction in DELLA function. In contrast, mutants having enhanced DELLA function exhibit enhanced Pi starvation responses. We also show that Pi deficiency promotes the accumulation of a green fluorescent protein-tagged DELLA (GFP-RGA [repressor of ga1-3]) in root cell nuclei. In further experiments, we show that Pi starvation causes a decrease in the level of bioactive GA and associated changes in the levels of gene transcripts encoding enzymes of GA metabolism. Finally, we show that the GA-DELLA system regulates the increased root hair length that is characteristic of Pi starvation. In conclusion, our results indicate that DELLA-mediated signaling contributes to the anthocyanin accumulation and root architecture changes characteristic of Pi starvation responses, but do not regulate Pi starvation-induced changes in Pi uptake efficiency or the accumulation of selected Pi starvation-responsive gene transcripts. Pi starvation causes a reduction in bioactive GA level, which, in turn, causes DELLA accumulation, thus modulating several adaptively significant plant Pi starvation responses.
Overview and Inventory of State Education Reforms: 1990 to 2000

The National Center for Education Statistics (NCES) is the primary federal entity for collecting, analyzing, and reporting data related to education in the United States and other nations. It fulfills a congressional mandate to collect, collate, analyze, and report full and complete statistics on the condition of education in the United States; conduct and publish reports and specialized analyses of the meaning and significance of such statistics; assist state and local education agencies in improving their statistical systems; and review and report on education activities in foreign countries. We strive to make our products available in a variety of formats and in language that is appropriate to a variety of audiences. You, as our customer, are the best judge of our success in communicating information effectively. If you have any comments or suggestions about this or any other NCES product or report, we would like to hear from you. Please direct your comments to: call toll free 1–877–4ED–Pubs; or order online at www.edpubs. org iii Foreword In 1992, the National Center for Education Statistics (NCES) released the congressionally mandated Overview and Inventory of State Requirements for School Coursework and Attendance, which described state-level education reform efforts of the 1980s. While many of the reform efforts reviewed in that report continued into the 1990s, states have undertaken a number of new reform initiatives over the past decade. States have made efforts to define academic standards for all students and create new accountability systems, to revise the way in which public schools are financed, to set new standards for teacher training, and to provide more parents with choice in where their children attend school. The purpose of this report is to describe these and other major developments in state-level education policies that occurred during the 1990s. The NCES's antecedent authorizing legislation (Public Law 103-382, Title IV) includes among the Center's duties, " compiling and disseminating data on State and local education reform activities " [sec. 404(a)(1)(A)]. In fulfilling this responsibility, the Center has drawn from its own data, but also on the efforts of other organizations to characterize the extent to which reform efforts have been adopted. The Council of Chief State School Officers (CCSSO), the Education Commission of the States (ECS), and Education Week are some of the sources of information used in this report. As reporting on education reforms continues among the Center's duties in its recent reauthorization, future reports will …
Interpersonal Trauma in Youths in Compulsory Residential Care: Assessment and Treatment

Objective To add to our knowledge, this cross-sectional study examined the relationships between exposure to early onset interpersonal trauma, symptoms of posttraumatic stress disorder (PTSD) and other mental health problems. A distinction between symptoms of PTSD and symptoms of complex PTSD was made. Method Participants were 92 girls (M = 15.9, SD = 1.2) recruited from three JeugdzorgPlus facilities. The hypothesized relationships were examined using structural equation modeling. Results Two relationships were found, one in which exposure to early onset interpersonal trauma was directly related to mental health problems and one in which symptoms of PTSD mediated the relationship between exposure to early onset interpersonal trauma and mental health problems. However, symptoms of complex PTSD did not significantly mediate this relationship. Conclusion These findings have direct implications for rehabilitation efforts in girls in compulsory residential care.
Effect of HCV infection on THP‐1 monocytoid cells

Hepatitis C virus (HCV) is the main cause of hepatocellular carcinoma in industrialized countries. HCV–HIV‐1 co‐infection occurs frequently among users of illicit intravenous drugs, thereby increasing the severity of HIV disease and the evolution of chronic active hepatitis towards cirrhosis and hepatocellular carcinoma. The present work shows that THP‐1 monocytoid cells are susceptible to HCV infection, of strain 1b, and that this strain can induce cellular modifications in this cell line. Infection of HCV was demonstrated by positivity for the E2 antigen within THP‐1 cells and by indirect immunofluorescence; moreover, HCV‐RNA was detected in supernatants of THP‐1 cells from day 7 post‐inoculation. Cell shape and membrane surface antigens varied upon viral infection, which is also capable of inducing oxygen radicals. In particular we underline the relevant intracellular accumulation of ferritin that paralleled an increase of cell surface expression of the transferrin receptor. Evaluation of cellular events upon HCV infection in THP‐1 cells may represent a useful tool with which to identify alteration in monocytes metabolism and to study therapeutic approaches for such alterations. Copyright © 2004 John Wiley & Sons, Ltd.
Pharmaceutical Drug Misuse: Are Industry of Employment and Occupation Risk Factors?

We explore the misuse of pharmaceutical drugs in the Australian workforce, focusing on whether any differences exist between workers in particular industries or occupations. In terms of industry, being employed in hospitality is positively associated with pharmaceutical drug misuse, while being employed in finance, insurance and retail is inversely related. In terms of occupation, we find that being a labourer is positively related to misuse of pharmaceutical drugs, while being employed in managerial, professional, sales, clerical or administrative roles is associated with a lower tendency. Further analysis of occupational effects revealed that being in a blue-collar occupation, as a whole, is positively related to pharmaceutical drug misuse relative to white-collar employment. Moreover, being employed in higher status roles is associated with a lower likelihood of such behaviour. Our findings imply that particular workplace pressures, cultural norms and/or working conditions might be influential factors behind workers' drug misuse.