Miracle-dz/UniFAR-FTUs huggingface dataset:
The relationship between inflation and economic growth in Ethiopia

Since both inflation and economic growth are not a new concept rather their relationships are waited still now as a debatable issue among macro-economists, policy makers, policy analysts, politicians and even the population itself by giving their own analysis by conduct a research and assumption based on the trend as before. Basically, the aims of this seminar paper are to review the relationship between inflation and economic growth as well as to review the causes, sources, determinants and impacts of Ethiopian inflation. Most of the studies indicated above shown that, higher and volatile inflation is bad for the economy. On the other hand, lower and stable inflation is considered as a promoter of the economy. Then the question should focus on what level of inflation is harmful to economic growth? Many economists have made researches on estimating the threshold level of inflation using panel data for a number of countries and time-series data for single country cases and these researchers fix the threshold level of inflation for both developing and developed country. But in this seminar paper, quantifying or fix the exact number of threshold level of Ethiopian inflation and decide below this level inflation has a positive effect on growth and beyond this level it has negative impact on growth is very difficult by simply review previous literature without conducting actual research and make a deep analysis. Even if it is the case, based on the literature it is surely possible to conclude the inflation rate has a serious negative effect on the growth of one country’s economy especially in Ethiopia, if inflation has a double digit of an annual growth.
Quadruple Anionic Buckybowls by Solid-State Chemistry of Corannulene and Cesium

The buckybowl corannulene is known to be an excellent electron acceptor. UV photoelectron spectroscopy studies were performed with thin-film systems containing corannulene and cesium. Adsorption of submonolayer quantities of corannulene in ultrahigh vacuum onto thick Cs films, deposited at 100 K on a copper(111) substrate, induces a transfer of four electrons per molecule into the two lowest unoccupied orbitals. Annealing of thick corannulene layers on top of the cesium film leads to the formation of a stable film composed of C20H104– ions coordinated to four Cs+ ions. First-principles calculations reveal, as the most stable configuration, four Cs+ ions sandwiched between two corannulene bowls.
The Higher Education Qualifications Framework: A Review of Its Implications for Curricula.

This article reports on the findings of a research project which aimed at determining what the key implications of the Higher Education Qualifications Framework would be for the curricula of Universities of Technology. The key problems which were investigated were the seeming lack of understanding of the exact implications of the Higher Education Qualifications Framework and the apparent hesitance on the part of Universities of Technology to start with the implementation process. By means of a systematic literature review and document analysis the researcher attempted to provide some frame of reference on the implications of the Higher Education Qualifications Framework for the programmes and curricula of Universities of Technology. The research aimed to start off a process of addressing the gap in available literature on the South African Higher Education Qualifications Framework. The research yielded some clear curricular implications of the framework and provided some guidelines for implementation.
Connectivity-Based Data Gathering with Path-Constrained Mobile Sink in Wireless Sensor Networks

The design of an effective and robust data gathering algorithm is crucial to the overall performance of wireless sensor networks (WSN). However, using traditional routing algorithms for data gathering is energy-inefficient for sensor nodes with limited power resources and multi-hop communication protocols. Data gathering with mobile sinks provided an effective solution to this problem. The major drawback of this approach is the time and path constraints of the mobile sink, which limit the mobile sink to collect data from all sensor nodes and, then, data routing is still required for these unreachable parts by the mobile sink. This paper presents a new data gathering algorithm called Connectivity-Based Data Collection (CBDC). The CBDC algorithm utilizes the connectivity between sensor nodes so as to determine the trajectory of the mobile sink whilst satisfying its path constraint and minimizing the number of multi-hop communications. The presented results show that CBDC, in comparison with the LEACH-C algorithm, prolongs the network life time at different connectivity levels of sensor networks, varying number of sensor nodes and at different path constraints of the mobile sink.
Data reduction of CRISM data to highlight alteration minerals

CRISM (Compact Reconnaissance Imaging Spectrometer for Mars) hyperspectral data have a spatial resolution ranging from 12 to 36m/pixel allowing the high resolution mapping of minerals at the surface of Mars. However, the signal-to-noise ratio (SNR) makes challenging the discrimination of minerals spectrally close such as certain phyllosilicates and carbonates. Here, we discuss different processing of data reduction used to improve the signal-to-noise ratio and to highlight the alteration minerals at the surface of Mars and their limit. We show that our tool allows to understand trends in global mineralogy present in hyperspectral data cube.
A Dynamic Analysis of Marketing Orders, Voting, and Welfare

This paper presents a dynamic model of how profit-maximizing farmers would vote on marketing order rules given that new firms will enter, based on rational expectations (perfect foresight) about the path profits follow. Early entrants make large short-run gains while, in the long run, marginal firms break even. Welfare analyses under a dynamic model differ substantially from the static analyses normally reported.
pvFPGA: paravirtualising an FPGA-based hardware accelerator towards general purpose computing

This paper presents an ameliorated design of pvFPGA, which is a novel system design solution for virtualising an FPGA-based hardware accelerator by a virtual machine monitor (VMM). The accelerator design on the FPGA can be used for accelerating various applications, regardless of the application computation latencies. In the implementation, we adopt the Xen VMM to build a paravirtualised environment, and a Xilinx Virtex-6 as an FPGA accelerator. The data transferred between the x86 server and the FPGA accelerator through direct memory access (DMA), and a streaming pipeline technique is adopted to improve the efficiency of data transfer. Several solutions to solve streaming pipeline hazards are discussed in this paper. In addition, we propose a technique, hyper-requesting, which enables portions of two requests bidding to different accelerator applications to be processed on the FPGA accelerator simultaneously through DMA context switches, to achieve request level parallelism. The experimental results show that hyper-requesting reduces request turnaround time by up to 80%.
High‐throughput sequencing of a 4.1 Mb linkage interval reveals FLVCR2 deletions and mutations in lethal cerebral vasculopathy

Rare lethal disease gene identification remains a challenging issue, but it is amenable to new techniques in high‐throughput sequencing (HTS). Cerebral proliferative glomeruloid vasculopathy (PGV), or Fowler syndrome, is a severe autosomal recessive disorder of brain angiogenesis, resulting in abnormally thickened and aberrant perforating vessels leading to hydranencephaly. In three multiplex consanguineous families, genome‐wide SNP analysis identified a locus of 14 Mb on chromosome 14. In addition, 280 consecutive SNPs were identical in two Turkish families unknown to be related, suggesting a founder mutation reducing the interval to 4.1 Mb. To identify the causative gene, we then specifically enriched for this region with sequence capture and performed HTS in a proband of seven families. Due to technical constraints related to the disease, the average coverage was only 7×. Nonetheless, iterative bioinformatic analyses of the sequence data identified mutations and a large deletion in the FLVCR2 gene, encoding a 12 transmembrane domain‐containing putative transporter. A striking absence of alpha‐smooth muscle actin immunostaining in abnormal vessels in fetal PGV brains, suggests a deficit in pericytes, cells essential for capillary stabilization and remodeling during brain angiogenesis. This is the first lethal disease‐causing gene to be identified by comprehensive HTS of an entire linkage interval. Hum Mutat 31:1–8, 2010. © 2010 Wiley‐Liss, Inc.
Influence of entrepreneur type, region and sector effects on business self-confidence: Empirical evidence from Argentine firms

In this current work we analyse the influence of factors potentially able to explain entrepreneurs’ self-confidence in their own business activity, in view of the repercussions that they may ultimately have on economic development. Specifically, we include a number of factors in the analysis presented here that can be considered traditional in the specialized literature, such as the regional and sectoral factors, along with an additional factor measuring the type of entrepreneur running the firm. This typology is defined on the basis of the entrepreneurs’ personal characteristics, and their way of managing the firm's resources. The authors used a cross-section (during 2001–2002) of 1314 firms, grouped in four sectors of activity, spatially distributed over 14 Argentine provinces, and considering seven models of entrepreneurial behaviour in the analysis. Our results, controlled by size, at the business level, and for the socio-economic and demographic characteristics, at the regional level, have been tested to be able to capture the significant effect that the entrepreneur type, the sector of activity and the regional location of the firm have in strengthening the entrepreneurs’ perception of the improvement in the economic situation of their firms.
In Vitro Evaluation of PCL and P(3HB) as Coating Materials for Selective Laser Melted Porous Titanium Implants

Titanium is widely used as a bone implant material due to its biocompatibility and high resilience. Since its Young’s modulus differs from bone tissue, the resulting “stress shielding” could lead to scaffold loosening. However, by using a scaffold-shaped geometry, the Young’s modulus can be adjusted. Also, a porous geometry enables vascularisation and bone ingrowth inside the implant itself. Additionally, growth factors can improve these effects. In order to create a deposit and release system for these factors, the titanium scaffolds could be coated with degradable polymers. Therefore, in the present study, synthetic poly-ε-caprolactone (PCL) and the biopolymer poly(3-hydroxybutyrate) (P(3HB)) were tested for coating efficiency, cell adhesion, and biocompatibility to find a suitable coating material. The underlying scaffold was created from titanium by Selective Laser Melting (SLM) and coated with PCL or P(3HB) via dip coating. To test the biocompatibility, Live Cell Imaging (LCI) as well as vitality and proliferation assays were performed. In addition, cell adhesion forces were detected via Single Cell Force Spectroscopy, while the coating efficiency was observed using environmental scanning electron microscopy (ESEM) and energy-dispersive X-ray (EDX) analyses. Regarding the coating efficiency, PCL showed higher values in comparison to P(3HB). Vitality assays revealed decent vitality values for both polymers, while values for PCL were significantly lower than those for blank titanium. No significant differences could be observed between PCL and P(3HB) in proliferation and cell adhesion studies. Although LCI observations revealed decreasing values in cell number and populated area over time on both polymer-coated scaffolds, these outcomes could be explained by the possibility of coating diluent residues accumulating in the culture medium. Overall, both polymers fulfill the requirements regarding biocompatibility. Nonetheless, since only PCL coating ensured the maintenance of the porous implant structure, it is preferable to be used as a coating material for creating a deposit and release system for growth factors.
Corporate-Governance Ratings and Company Performance: A Cross-European Study

Manuscript Type: Empirical Research Question/Issue: Prior studies have failed to unequivocally establish a positive relationship between corporate-governance ratings and company performance, although theoretically, we would expect to find one. In this paper, we try to establish whether a positive relationship exists through modeling the relationship more carefully. Research Findings/Insights: After controlling for selection bias and endogeneity simultaneously, we find a significant positive relationship between corporate-governance ratings and performance. However, the strength of this relationship seems to depend on the quality of the institutional environment. Finally, we find that improvements in corporate-governance ratings over time result in decreasing marginal benefits in terms of performance. Theoretical/Academic Implications: Our paper contributes to the literature by showing that improved corporate-governance ratings lead to better performance, but that econometric problems might obscure this relationship. We also show that for a sample of developed countries the institutional environment affects the relationship between governance ratings and performance. Finally, this paper contributes to the literature on the impact, regarding compliance and effectiveness, of codes of good governance. Practitioner/Policy Implications: Our results are relevant for both companies and policy makers. They indicate that companies can improve performance by adhering to good corporate-governance practices. For policy makers, the findings suggest that soft laws and the invisible hand of the market lead to companies improving their corporate governance.
The role of randomized trials in testing interventions for the prevention of youth suicide

Epidemiological considerations point to a small handful of prevention strategies that have the potential for dramatically reducing suicide rates. Nearly all of those prevention approaches involve population-based strategies to either find an increased number of individuals at high risk for suicide or to reduce the prevalence of risk factors in members of a population that, as a whole, has a relatively low rate of suicide. Few of these approaches have been evaluated in rigorous trials. We argue that there are rigorous randomized trial designs that are both feasible and ethical and can be used to test both programmes and implementation strategies for population-based suicide prevention. We review existing suicide prevention trials and introduce two new randomized trial designs that are likely to achieve sufficient statistical power. The ‘dynamic wait-listed design’ randomizes across different time periods and is now being used to test a gatekeeper training programme in 32 schools. It could also be used to examine suicide prevention programmes in rural areas. The multi-trial follow-up study builds on the large number of successful population-based preventive interventions aimed at reducing known risk factors for suicide in youths to see whether these also cause a reduction in rates of completed suicide.
Role of Shiga toxin versus H7 flagellin in enterohaemorrhagic Escherichia coli signalling of human colon epithelium in vivo

Enterohaemorrhagic Escherichia coli O157:H7 (EHEC) is a clinically important foodborne pathogen that colonizes human colon epithelium and induces acute colonic inflammation, but does not invade the epithelial cells. Whereas Shiga toxin (Stx) and bacterial flagellin have been studied for their ability to upregulate the production of proinflammatory chemokines by cultured human colon cancer cell lines, the relevance of studies in colon cancer cell lines to the production of proinflammatory signals by normal epithelial cells in EHEC‐infected human colon is not known. We show herein that Stx does not bind to human colon epithelium in vivo. Moreover, globotriaosylceramide (Gb3/CD77) synthase, the enzyme required for synthesis of the Gb3/CD77 receptor for Stx, was not expressed by normal or inflamed human colon epithelium in vivo. In contrast, Toll‐like receptor (TLR) 5, the receptor for bacterial flagellin, was expressed by normal human colon epithelium and by colon epithelium in human intestinal xenografts. EHEC H7 flagellin instilled in the lumen of human colon xenografts that contain an intact human epithelium upregulated the expression of epithelial cell proinflammatory chemokines, which was accompanied by a subepithelial influx of neutrophils. Isogenic mutants of EHEC that lacked flagellin did not significantly upregulate prototypic neutrophil and dendritic cell chemoattractants by model human colon epithelia, irrespective of Stx production. We conclude that EHEC H7 flagellin and not Stx is the major EHEC factor that directly upregulates proinflammatory chemokine production by human colon epithelium in vivo.
Enhancing Emotional Well Being of Elderly Using Assistive Social Robots in Australia

Emotional well being is one of two aspects of personal well-being that can be measured in quality of life assessments, and is a critical part of a senior citizen to help them age gracefully and remain independent as well as integrated with society. In order to improve the emotional well being of the elderly in the era of looming ageing population crisis, in this paper the authors report on design and a field trial of Matilda, a human-like assistive communication assistive robot in Australian residential care and home-based care facilities. The work demonstrates that by marrying the embodiment of care with artificial intelligence, emotion measuring techniques and positive emotion generation in its design and applications, Matilda has the ability to improve emotional well being of the elderly.
An interview with Raymond E. Miles and Charles C. Snow

Executive Overview Raymond E. Miles is professor emeritus and former dean of the Walter A. Haas School of Business, University of California, Berkeley. He received his Ph.D. in Organizational Behavior and Industrial Relations from Stanford. He has published five books and over fifty articles based on his research on leadership and managerial philosophies, organizational development, organization design, and alternative arrangements of strategy, structure and process. His current research and writing focus on collaborative approaches to innovation. Charles C. Snow is the Mellon Foundation Professor of Business Administration and chairman of the Department of Management and Organization at Penn State's Smeal College of Business. He has research and consulting experience in both the formulation and implementation of business strategies. He is on the editorial board of the Strategic Management Journal, Journal of World Business, and six other academic journals. He has been a visiting professor at several inst.
Value of Public Goods from Sports Stadiums: The Cvm Approach

Many state and local governments have subsidized the construction of arenas and stadium for the use of professional sports teams. They often justify the subsidies by claiming the projects generate valuable public goods and positive externalities, though such benefits are difficult to measure. This article reports an application of the contingent valuation method (CVM) to measure the value of public goods generated by two proposed projects in Lexington, Kentucky: a new basketball arena for the University of Kentucky and a minor league baseball stadium. Neither project would generate sufficiently valuable public goods to justify public financing. Although the results cannot be generalized to other cases, they do shed light on some of the main issues involved, and they demonstrate the feasibility of applying CVM to the evaluation of the subsidized stadiums.
Notch Regulates the Generation of Diverse Cell Types From the Lateral Lineage of Drosophila Antennal Lobe

Abstract: Diverse neuronal cell types arise from the lateral neuroblast in the antennal lobe of Drosophila. The authors show that loss of Notch function from the entire lineage during development leads to an absence of local interneurons (LNs) with a concomitant increase in the number of projection neurons (PNs). The presence of the intracellular domain of Notch was observed within the nucleus of newly born neurons within the neuroblast lineage. This leads to the suggestion that Notch acts in a binary fate decision to determine formation of LNs and PNs, resulting in two distinct hemilineages from the single neuroblast. The observation of nuclear Notch in several neuroblast lineages leads us to speculate that this mechanism is widespread during the developing Drosophila brain.
Effect of weak static magnetic fields on the development of cultured skeletal muscle cells

We studied the effect produced on the development and functional activity of skeletal muscle cells from newborn Wistar rats in primary culture by weak static magnetic fields (WSMF; 60–400 µT) with a high capacity of penetrating the biological media. To reduce the impact of external magnetic fields, cells were cultured at 37 °C in a multilayered shielding chamber with the attenuation coefficient equal to 160. WSMF inside the chamber was created by a circular permanent magnet. We found that the application of WSMF with the magnetic field strength only a few times that of the geomagnetic field can accelerate the development of skeletal muscle cells, resulting in the formation of multinuclear hypertrophied myotubes. WSMF was shown to induce 1.5‐ to 3.5‐fold rise in the concentration of intracellular calcium [Ca2+]i due to the release of Ca2+ from the sarcoplasmic reticulum (SR) through ryanodine receptors (RyR), which increases in the maturation of myotubes. We also found that fully differentiated myotubes at late stages of development were less sensitive to WSMF, manifesting a gradual decrease in the frequency of contractions. However, myotubes at the stage when electromechanical coupling was forming dramatically reduced the frequency of contractions during the first minutes of their exposure to WSMF. Bioelectromagnetics 35:537–546, 2014. © 2014 Wiley Periodicals, Inc.