Miracle-dz/UniFAR-FTUs huggingface dataset:
Rethinking Of Education Quality in Secondary Schools in Chipinge District, Zimbabwe

The use of quality assurance processes in implementing the curriculum in secondary schools is very crucial owing that this educational level is the foundation of further level of education (tertiary). Teachers’ professional practices have to be given precedents and priority concern for quality assurance through quality assurance processes. It is therefore paramount to effectively utilise those quality assurance processes that will support teachers’ competences and develop their potentials for quality service delivery in secondary education. The study has therefore examined effectiveness of quality assurance processes used in secondary schools in Chipinge District to enhance quality education. The study employed a descriptive survey design. Information was sought from all school heads, deputy heads, senior teachers and the teachers from three secondary schools in Chipinge District. Purposive sampling was used to select the respondents. The study sample comprised three school heads, three deputy school heads, three senior teachers and twenty seven teachers from three secondary schools. The study employed two main types of instruments for data collection: interview schedules and questionnaires. Questionnaires gathered data from teachers while interview schedules guided interviews held with the administration officers of the three schools. The results of data analysis were presented and analysed qualitatively. The study established that most teachers of secondary schools in Chipinge District have positive attitudes towards the use of quality assurance processes. They also indicated that they have benefitted a lot from quality assurance processes in areas such as development of work plans, preparation of lesson plans, records of work, maintaining quality instruction, improving actual classroom instruction and developing instructional materials. However, some teachers had negative attitudes; as a result they failed to implement recommendations made by their supervisors after supervision. The study recommends that, School heads should create a friendly environment between teachers and administration officers so that they will be able to instill passion in teachers to continue doing the work effectively hence desired results will be produced. Government should also provide in-service courses for the other members of the school administration so that they will carry out quality assurance processes effectively. There is also a need for sensitisation of community members for increased participation in matters affecting curriculum implementation through organised workshops.
Comparison of community and healthcare-associated MRSA in Iran

Background: To characterize and compare the epidemiological and microbiological aspects of community and healthcare-associated MRSA (CA-MRSA, and HA-MRSA) cases in Iran, this prospective cohort study was conducted from January to December 2008 in seven hospitals. Patients and methods: Staphylococci were isolated from 109 hospitalized patients. MRSA isolates were classified into HA-MRSA and CA-MRSA based on clinical features. Antibacterial susceptibility patterns of the isolates to eight antibiotics routinely used to treat infected patients were determined according to standard agar dilution methods. Staphylococcal Cassette Chromosome mec (SCCmec) type of isolates and their correlation with antimicrobial susceptibility patterns in CA and HC isolates were determined. Results: Of 109 isolates, 15(13.7%) were community-associated and 94 (86.3%) were healthcare-associated MRSA. The most frequent SCCmec types in the studied hospitals were SCC mec type I (56.9%) and type II (22%). Relatively high resistance (>60%) of the MRSA to the seven tested antibiotics including: ciprofloxacin, trimethoprimsulfamethoxazole, clindamycin, rifampin, erythromycin, tetracycline and doxycycline were noticed. Conclusion: To our knowledge, this is the first time that the analysis of SCCmec type is carried out in Iran according to the clinical criteria. Difference in the prevalence of HC-MRSA and CA-MRSA based on the clinical and epidemiological features may indicate the need for revisiting the classification of MRSA. The high prevalence of multidrug resistant MRSA could be as a result of the excessive use of antibiotics in the hospitals. Therefore, periodical assessment of antibacterial susceptibility patterns of the MRSA strains is warranted.
Journey in time : the world's longest continuing art tradition : the 50,000 year story of the Australian aboriginal rock art of Arnhem land

This is the 50,000-year story of the Australian Aboriginal rock art of Arnhem Land. Aboriginal rock art, as practised in Arnhem Land, is the world's longest continuing art tradition. It is a tradition that is not merely decorative, but provides a "journey in time" - a pictoral record of the longest surviving culture on earth. Occurring at thousands of different sites, and of many different styles, the rock paintings of this region date from at least 30,000 years ago, and some may have been in place as early as 50,000 years ago. The oldest galleries pre-date the Hall of Bulls and Lascaux in France. This book explores the depth and complexity of this art tradition and gives insight into the aesthetic and cultural worlds of the people who created it. The book has been written and illustrated with the permission of the Gagudju people, the traditional owners of the land.
A conversation with Mervyn Susser

Mervyn Wilfred Susser was born September 26, 1921, in Johannesburg, South Africa. A 1950 graduate in medicine from the University of Witswatersrand, he spent several years in community clinical work in the Alexandra Health Centre before emigrating to England in 1956. In 1957, he was appointed Lecturer in social and preventive medicine at the University of Manchester, and, in 1964, Reader and Head. In 1966, he was appointed Chair of the Division of Epidemiology at Columbia University, where he founded the PhD program in epidemiology. In 1978, he stepped down from the chair to found the Gertrude H. Sergievsky Center, a Columbia research unit focused on neurologic, psychiatric, and developmental epidemiology. He also served as Editor of the American Journal of Public Health from 1992 to 1998. Dr. Susser’s research has addressed problems in mental health, child health, and the long-term consequences of exposures during pregnancy. He is also known for his work on the philosophy and goals of epidemiology, and for his active involvement in human rights. He is a member of the Institute of Medicine and the National Academy of Sciences, and is the author of 6 books. Special recognitions include the John Snow Award, presented in 1994 by the American Public Health Association.
An Iterative implementation of the single step approach for genomic evaluation which preserves existing genetic evaluation models and software

The “single step approach” of Misztal et al (2009) and Christensen et al (2010) combines phenotypic, genomic and pedigree information into a single BLUP analysis. To adapt its implementation to most current genetic and genomic evaluation models, we propose an iterative solution procedure. Its main benefits are the fact that only moderate modifications of existing software are required and that it offers a framework for extension to more complex genetic or genomic models or their approximation.
Which industries are served by online marketplaces for technology

This study investigates a recent phenomenon in the market for technology: online marketplaces for technological inventions, which support the listing, search, and exchange of technological inventions by sellers and buyers. Focusing on three salient theoretical factors that affect markets for technology—search costs, ambiguity about the underlying knowledge and its applications, and expropriation concerns—our research systematically explores which industries are served by online marketplaces. We exploit the fact that the magnitude of these factors varies across industries and identify key features of online marketplaces that may address these factors. Our proprietary dataset covers 12 online marketplaces for technology and spans over 140 industries. The results indicate that online marketplaces are more likely to serve an industry with (a) a higher cost of searching for technologies in that industry, (b) greater ambiguity about the underlying technology’s potential applications across industries, and (c) greater ability to protect inventions from expropriation.
Fixed IP-port based Application-Level Internet Traffic Classification

As network traffic is dramatically increasing due to the popularization of Internet, the need for application traffic classification becomes important for the effective use of network resources. In this paper, we present an application traffic classification method based on fixed IP-port information. A fixed IP-port is a {IP address, port number, transport protocol}triple dedicated to only one application, which is automatically collected from the behavior analysis of individual applications. We can classify the Internet traffic more accurately and quickly by simple packet header matching to the collected fixed IP-port information. Therefore, we can construct a lightweight, fast, and accurate real-time traffic classification system than other classification method. In this paper we propose a novel algorithm to extract the fixed IP-port information and the system architecture. Also we prove the feasibility and applicability of our proposed method by an acceptable experimental result.
Stochastic neural networks and the weighted Hebb rule

Neural networks with synaptic connections based on the weighted Hebb rule are studied in the presence of noise, in the limit when the size of the network is very large. The presence of a sufficient amount of noise, measured by a critical temperature T/sub c/, results in the elimination of spurious local minima. It is shown that the inclusion of even a single pattern weighted sufficiently more than all the rest can result in a T/sub c/ that is lower than that for a normal Hebbian network without this extra pattern. By suitably adjusting the weights, therefore, the convergence time of the network can be reduced significantly due to the lower operating temperature; simultaneously, the overlaps of the fixed points of the network with the stored patterns are better.
Production Goes Global, Compliance Stays Local: Private Regulation in the Global Electronics Industry

Poor working conditions in global supply chains have led to private initiatives that seek to regulate labor practices in developing countries. But how effective are these regulatory programs? We investigate the effects of transnational private regulation by studying Hewlett-Packard's (HP) supplier responsibility program. Using analysis of factory audits, interviews with buyer and supplier management, and field research at production facilities across seven countries, we find that national context – not repeated audits, capability building, or supply chain power – is the key predictor of workplace compliance. Quantitative analysis shows that factories in China are markedly less compliant than those in countries with stronger civil society and regulatory institutions. Comparative field research then illustrates how these local institutions complement transnational private regulation. Although these findings imply limits to private regulation in institutionally poor settings, they also highlight opportunities for productive linkages between transnational actors and local state and society.
Preliminary studies on the use of the Cascade Rolling Circle Amplification technique for Plum pox virus detection

Isothermal techniques for the amplification of nucleic acids have emerged in the last years. In contrast to the Polymerase chain reaction (PCR), the most prevalent method to amplify DNA in vitro , the reactions can be run at constant temperatures. Specificity and sensitivity are at least as high as that obtained by using PCR and the methods are less time consuming. Therefore, the isothermal amplification of nucleic acids provides a powerful tool for the detection of Plum pox virus (PPV), the causal agent of the Sharka disease. The cascade rolling circle amplification (CRCA), first described by Thomas et al. (1999), is based on the rolling circle mechanism that many viruses use to replicate their genome multiplicatively. Circular Probes, also called Padlock probes (PLP), which arise from the ligation of the terminal region of DNA probes upon side by side hybridization to the target serve as template (Nilsson et al. 1994). For detecting PPV by CRCA, RNA was extracted and reverse transcribed to cDNA using a PPV specific primer. Several PLPs with varying lengths and sequences complementary region to the cDNA were designed and tested. Furthermore, different pairs of primers for the subsequent amplification were developed. For specific ligation Ampligase and T4 DNA Ligase were tested. In CRCA, two polymerases with strong strand displacement activity were compared: Phi29 DNA Polymerase and Bst DNA Polymerase. These enzymes differ in their optimal reaction temperature. Ligation as well as amplification do occur, but there is high background amplification also in negative and no template controls. Discrimination was possible after a restriction digestion is carried out. As proven by sequencing of reaction products non-specific signals were a result of primer polymerization. Current work focuses on the reduction of the background amplification and improvement of the sensitivity. Keywords : Cascade Rolling Circle Amplification, CRCA, isothermal amplification of DNA, Plum pox virus , PPV
Performance Analysis of multi-cloud Deployment in Many task Applications

Cloud storage enables network online storage where data is stored on multiple virtual servers. In order to carry out huge tasks in cloud environment, single cloud provider is not sufficient to perform the many tasks applications and services. For Handling Intensive task, need to have multi cloud environment to improve the cost-effectiveness of the deployment and increase availability. Larger tasks are carried out by processing of many tasks at a time in a cloud computing environment. In this paper, for efficient handling of multiple tasks, need to have the performance analysis and optimization of all tasks in the multi-cloud environment. Performance analyses consist of CPU scheduling, Memory utilization, I/O tasks, and resource time sharing and cost benefits. Earlier system concentrates on the deployment of multi cloud architecture and multi-processing needs more accuracy, scalability and efficiency. In the methodology, Job allocation by front end server and service LAN are used. This research will achieved the process of multitasking environment in multi cloud infrastructure by having some effective tools for measuring over all performance and optimization of multi cloud computing services. Keywords—Cloud computing, computing cluster, loosely coupled architecture, multiple task computing
The role of neurohumoral systems in the pathophysiology and management of heart failure

Congestive heart failure is a common and lethal disorder. Improved understanding of the pathophysiology has led in recent years to more rational therapeutic regimes. The historical development of modern concepts of the pathophysiology and management of heart failure are outlined, concentrating mainly on the role of neurohumoral systems - the renin-angiotensin-aldosterone system and sympathetic nervous system. Deficiencies in current knowledge are discussed, from which I outline the objectives of the studies presented in this thesis.
A series of layered intergrowth phases grown by molecular beam epitaxy: SrmTiO2+m(m=1–5)

SrmTiO2+m phases having one TiO2 layer sandwiched between m SrO layers were grown using molecular beam epitaxy. The out-of-plane (in-plane) lattice parameters determined by x-ray diffraction were c(a)=9.14A (3.78A), 23.55A (3.75A), and 14.60A (3.75A) for Sr3TiO5, Sr4TiO6, and Sr5TiO7, respectively. Both lattice parameters change abruptly on going from the m=2 Ruddlesden-Popper phase to m=3 phase, indicating a significant change in the bond lengths (or strain states) on transitioning from the known members to the higher order members of this structural family. Electron microscopy confirmed the artificially layered structures.
Pulmonary Manifestations in Chagas' Disease

American trypanosomiasis is essentially an endemic disease of rural populations, caused by a protozoan, Trypanosoma cruzi, which is transmitted to man by a bloodsucking bug of the subfamily Triatominae. It was described for the first time by the Brazilian scientist Carlos Chagas. It is a widespread human infection, being reported from the southern United States to Argentina. In Brazil alone more than six million people are affected. Vector distribution is depicted in Figure 1. The absence of disease is noticeable in the south of the United States, although infected vectors are present. The parasite is found in the bloodstream as a typical trypanosoma and assumes a leishmanial form when entering the cells (Fig. 2). There are a number of strains of the parasite differing in their infectivity to man, which explains differences in geographic distribution of the disease. Infection is usually acquired by man in the mud and wood houses of rural areas, where bloodsucking bugs live. At night during sleep, the bug sucks a person's blood and infection sets in by contamination of mucous membranes or of skin with infected excreta of the triatomes. Human infection most commonly comes from rubbing the eyes after a bite on the lids, contaminating mucous membranes or conjunctiva with feces deposited by the bug while feeding or when squeezed out by slapping. Congenital infection, transfusion of contaminated blood, or ingestion of milk from a contaminated mother are rare forms of infection. The disease has an acute phase, an intermediate phase, and a chronic phase. The acute phase affects mostly young children in endemic areas and is characterized by a febrile illness in which the Figure 1. Vector distribution in Chagas' disease in the American continent. Infected vectors are present in Southern United States, but no human cases were reported.
Interview with Darrell Long

Dr. Darrell D. E. Long is Professor of Computer Science at the University of California, Santa Cruz. He holds the Kumar Malavalli Endowed Chair of Storage Systems Research and is Director of the Storage Systems Research Center. His broad research interests include many areas of mathematics and science, and in the area of computer science include data storage systems, operating systems, distributed computing, reliability and fault tolerance, and computer security. He is currently Editor-inChief of ACM Transactions on Storage. darrell@soe.ucsc. edu
The Effect of Green Tea Extract on Reproductive Improvement in Estradiol Valerate-Induced Polycystic Ovary Polycystic Ovarian Syndrome in Rat

Polycystic ovary syndrome (PCOS) is a reproductive and metabolic disorder in which the level of oxidative elements in blood rises. Green tea is a potent antioxidant since it contains catechins. In this study, the effect of hydro-alcoholic green tea extract on PCOS rats was examined. For PCOS induction, 96 mature Wistar rats were given estradiol valerate. After 60 days, the rats were divided into four groups including PCOS group and three experimental groups, which were given 50, 100 and 200 mg/Kg BW green tea extract 10 days, intraperitoneally. The serum concentration level of FSH, LH, testosterone and insulin were measured using ELISA method, while the serum concentration level of glucose was measured using glucose oxidase methods. Insulin resistance was calculated using HOMA-IR formulation. The data were analyzed using the one-Way ANOVA method considering P<005/ level of significance. There were a significant reduction in LH serum level, body and ovarian weight between the green tea extract treated-groups compare to PCOS. Moreover, a significant reduction in insulin resistance index was seen in the treatment groups related to PCOS. Histomorphometric studies also showed the significant changes in the number of follicles and theca layer thickness. These changes demonstrated a marked improvement in the symptoms of PCOS which may be due to green tea effects on oxidative stress pathways. Green tea can be considered as a potentially effective drug for treatment of PCOS, Insulin resistance and Type II diabetes.
Structural detectability analysis of cyber attacks for power grids via graph theory

Cyber-physical systems are pervasive in every walk of life. The safety performances of these systems are threatened by external malicious attacks and unforeseen failures. In terms of grid structural characteristics and graph theory, this study proposes a new framework to solve the problem of structural vulnerability which is caused by undetectable attacks in power grids. Based on the linear continuous-time descriptor system model, the digraph associated with structural matrix model for power grid is introduced in detail. To analyse the attack detectability in digraph, a series of basic properties are proposed about digraphs of structural power grids. Then an algorithm is proposed for obtaining the positions of the detection outputs to ensure left-invertible and observability for grid systems. In addition, an algorithm for judging whether there exists a structural vulnerability for the arrangement of the attack inputs and outputs of power grids is proposed, by which one can find disjoint paths if there exists structural vulnerability. Finally, some examples are shown to verify the effectiveness of the proposed algorithms.
Effects of Fire and Climate on Successions and Structural Changes in The Siberian Boreal Forest

Climate-fire-forest relationships at different scales (tree, stand, subbiome), based on the results of studies carried out in central Siberia, are summarized. Fire and climate are shown to be powerful external factors transforming the Siberian boreal forest. They change ecological environments in the forest ecosystems, their biogeochemical and hydrologic cycles, stability and productivity. Various climates and forests within vegetation zones of Siberia and specific fire regimes over the vast area are characterized. Fire history and tree growth response to fire and climate fluctuations studied by dendrochronological methods are presented. The most typical post fire succession patterns in the dominant pine/green moss and larch/green moss forest types in the northern, middle, and southern taiga zones are described. Some forest formation patterns (tree species composition, structure and productivity) at different stages of post fire recovery are analyzed. Fire occurrence and forest succession are considered in relation to possible vegetation shifts and phytomass change in Siberia under climate warming. Tree, ecosystem and subbiome levels are discussed with respect to modeling spatial and temporal states of Siberian vegetation cover under changing climate and fire impact.
Building semantic user profile for Polish web news portal

We present our research at Onet, the largest Polish news portal, aimed at constructing meaningful user profiles that are most descriptive of their interests in the context of the media content they browse. We used two distinct state-of-the-art numerical text-representation techniques: LDA topic modeling and Word2Vec word embeddings. We trained our models on the corpora of articles in Polish and compare them with a baseline model built on a general language corpora. We compared the performance of algorithms on two distinct tasks - similar articles retrieval and users gender classification. Our results show that the choice of text representation depends on the task - Word2Vec is more suitable for text comparison, especially for short texts such as titles. In the user profiling task, the best performance was obtained with a combination of features: topics from the article text and word embeddings from the title.