Miracle-dz/UniFAR-FTUs huggingface dataset:
An Overview on Mycotoxin Contamination of Foods in Africa

ABSTRACT Mycotoxins are fungal secondary metabolites that contaminate various feedstuffs and agricultural crops. The contamination of food by mycotoxins can occur before production, during storage, processing, transportation or marketing of the food products. High temperature, moisture content and water activity are among the predisposing factors that facilitate the production of mycotoxins in food. Aflatoxins, ochratoxins, fumonisins, deoxynivalenol and zearalenone are all considered the major mycotoxins produced in food and feedstuffs. In Africa, mycotoxin contamination is considered to be a major problem with implications that affect human and animal health and economy. Aflatoxin-related hepatic diseases are reported in many African countries. Ochratoxin and fumonisin toxicity in humans and animals is widespread in Africa. The available, updated information on the incidence of mycotoxin contamination, decontamination and its public health importance in Africa is lacking. The aim of this review is to highlight, update and discuss the available information on the incidence of mycotoxins in African countries. The public health implications and the recommended strategies for control of mycotoxins in food and agricultural crops are also discussed.
Adalimumab (Humira) induced acute lung injury

Patient: Male, 78 Final Diagnosis: Acute lung injury due to Adalimumab Symptoms: — Medication: Adalimumab Clinical Procedure: Intubated and put on mechanical ventilation Specialty: Pulmonology Objective: Unusual or unexpected effect of treatment Background: Adalimumab is a recombinant human monoclonal antibody that blocks the effects of tumor necrosis factor-alpha. Adalimumab related acute lung injury is a rare form of acute respiratory distress syndrome of possible immune etiology that develops immediately after an infusion. Case Report: We describe a 78 year old, male with no previous cardiac comorbidities, who developed acute lung injury (ALI) within one hour of administration of adalimumab. He was successfully treated with mechanical ventilatory support and adjuvant therapy. Conclusions: TNFα antagonists are a part of a new and revolutionary treatment for severe and difficult-to-treat autoimmune and inflammatory diseases. This report emphasizes that this fatal complication may occur with use of this drug. Clinicians need to be aware of this condition as prompt recognition and supportive management can prevent unwanted morbidity and mortality.
Sequence Generation Based on Mutual Relationship between State and Action: As a Mechanism in Narrative Generation System

This paper report "state-event transformation system" to transform story line and story world each other using transformation rules and conceptual dictionary. This mechanism is a part of our integrated narrative generation architecture which aims at the application to digital entertainment and literature. In tentative evaluations, we confirmed that the transformation of story world and story line is approximately logically correct and circular process produces the diversity of stories.
Hot-swapping robot task goals in reactive formal synthesis

We consider the problem of synthesizing robot controllers to realize a task that unpredictably changes with time. Tasks are formally expressed in the GR(1) fragment of temporal logic, in which some of the variables are set by an adversary. The task changes by the addition or removal of goals, which occurs online (i.e., at run-time). We present an algorithm for mending control strategies to realize tasks after the addition of goals, while avoiding global re-synthesis of the strategy. Experiments are presented for a planar surveillance task in which new regions of interest are incrementally added. Run-times are empirically shown to be favorable compared to re-synthesizing from scratch. We also present an algorithm for mending control strategies for the removal of goals. While in this setting the original strategy is still feasible, our algorithm provides a more satisfying solution by “tightening loose ends. ” Both algorithms are shown to yield so-called reach annotations, and thus the control strategies are easily amenable to other algorithms concerning incremental synthesis, e.g., as in previous work by the authors for navigation in uncertain environments.
Using Twitter data to improve news results on search engine

Web search results often consist of web results and news results. News results are displayed based on measurement of click-through Rate (CTR), a comparison between clicks and views of content. In other words, the more clicks obtained by content, the probability of that content appear, as news results will be higher. The CTR measurement is not effective for recent news due to recent news only have few clicks. On the other hand, a micro-blogging platform Twitter has short, real-time, wide coverage of news. In this paper, we use Twitter data to improve news results, so the recent news can have higher probability to appear on news results.
Introduction to The Economics of E-Commerce: A Strategic Guide to Understanding and Designing the Online Marketplace

Despite the recent misfortunes of many dotcoms, e-commerce will have major and lasting effects on economic activity. But the rise and fall in the valuations of the first wave of e-commerce companies show that vague promises of distant profits are insufficient. Only business models based on sound economic propositions will survive. This book provides professionals, investors, and MBA students the tools they need to evaluate the wide range of actual and potential e-commerce businesses at the microeconomic level. It demonstrates how these tools can be used to assess a variety of existing applications. Advances in web-based technology--particularly automation and delegation technologies such as smart agents, shopping bots, and bidding elves--support the further growth of e-commerce. In addition to enabling consumers to conduct automated comparisons and sellers to access visitors' background information in real time, such software programs can make decisions for individuals, negotiate with other programs, and participate in online markets. Much of e-commerce's economic value arises from this kind of automation, which not only reduces operating costs but adds value by generating new market interactions. This text teaches how to analyze the added value of such applications, considering consumer behavior, pricing strategies, incentives, and other critical factors. It discusses added value in several e-commerce arenas: online shopping, business-to-business e-commerce, application design, online negotiation (one-to-one trading), online auctions (one-to-many trading), and many-to-many electronic exchanges. Combining insights from several years of microeconomic research as well as from game theory and computer science, it stresses the importance of economic engineering in application design as well as the need for business models to take into account the "total game. " As the only serious treatment of the microeconomics of e-commerce, this book should be read by anyone seeking e-commerce solutions or planning to work in the field.
Tag Ontology Automatic Building for Semantic Searching of Services: a Case Study on Mashup Services

The explosion of services like web services, APIs, Mashups, etc., makes how to find the right one you need a tough problem. Tags, as a kind of metadata have been widely used to annotate services. In this paper, we propose to use an ontology automatically built from tags to improve the performance of service searching. We use the famous Mashup directory, Programmable.com, to illustrate our approach: First, all metadata especially tags of mashups and APIs at Programmable.com are crawled and preprocessed by the suffix stripping algorithm to lower the noise. Second, a Mashup-Mashup Network (MMN) is constructed to represent the Mashups and their relationships. And the community detection technique in complex network theory is introduced to mine the community structures (the potential domains of these Mashups) in MMN. Based on the Mashup communities, we further group the tags into corresponding domains. Finally the tag ontology is built with reference to WordNet, and embedded in our own developed s oftware s ervice r egistry and r epository (S2R2), to improve the performance of service searching. Comprehensive experiments are also conduct to testify the effectiveness of the proposed approach.
Social Media in Teaching-Learning Process: Investigation of the Use of Whatsapp in Teaching and Learning in University of Port Harcourt

There is no doubt that digital technologies play major roles in education inmodern times. Whatsapp mobile technology has been of immense value in this respect, as it is frequently and globally used in online instruction in universities. As well, it offers students increased choices and opportunities in the context of online instruction. Consequently, the purpose of this research work is to find out exactly to what extent the students and lecturers in the University of Port Harcourt, Faculty of Education are using the Whatsapp instant messaging tool in teaching and learning process in Faculty of Education, University of Port Harcourt, Nigeria. It also tried to find out if the aforesaid have enabling phones that are Internet ready to utilize the Whatsapp software in teaching and learning process. It attempts to discover major challenges, if any that are confronting its effective application in teaching and learning. Descriptive survey approach was adopted. The population for the study comprised of one hundred and twenty-eight (128) lecturers and one thousand six hundred and three (1603) first year undergraduate students of the University of Port Harcourt, Faculty of Education for the year 2017. Three (3) research questions guided the study. The research instrument used was a- 12 item questionnaire for both lecturers and the students correspondingly. It was validated with a reliability index of 0.70 and considered appropriate for the study. The researchers also employed an in-depth interview method to cover any discrepancy in the structured questionnaire, which was administered to the lecturers and the students respectively. The research questionnaires so retrieved from both respondents were analyzed, using statistical percentile to answer the necessary research questions. The results revealed that regardless of the fact that both the lecturers and the students possess Internet enabled mobile phones, they were not properly utilizing Whatsapp instant messaging for effective academic activities because only 15(11.7%) of lecturers and 243(22.9%) of students actually use it for academic purposes. The result further revealed that 100% of both lecturers and students never received any form of training for the use of Whatsapp mobile technology. Recommendations were also made, which included among others, adequate training on Whatsapp skills and the purchase of Internet enabled phones for effective utilization of Whatsapp instant messaging in teaching and learning process.
The re-alignment of educational psychologists in supporting primary schools to enhance provision for children with speech, language and communication needs

The role of educational psychologists (EPs) in relation to Speech, Language and Communication Needs (SLCN) has been relatively unexplored and when studies have targeted the role of EPs, their role has been at best peripheral. This paper aims to show how the re-alignment of EP practice could be made through exploring the different perspectives of how SLCN can be supported in schools, and to see where gaps and opportunities may exist between these perceptions and practice.Three focus groups with professionals (EPs, Speech and Language Therapists (SLTs) and Specialist Teachers (STT)) were conducted and analysed using thematic analysis. 12 observations of Key Stage 1 classrooms using the Communication Supporting Classroom Observation Tool, and questionnaires with school staff (N = 40) were carried out and analysed using descriptive statistics.There was variability of perceptions and inconsistency of practice around strategies and approaches for supporting SLCN, such as the use of evidence-based interventions, adult talk and opportunities to develop emerging literacy skills.There are challenges in delivering provision for children with SLCN, confounded by an apparent discrepancy within and between professionals’ and schools’ views as to how such provision should be delivered. EPs are uniquely positioned to support schools in overcoming these challenges, particularly through joint problem solving and resolving tensions which may exist between services, and supporting schools to translate research into effective practice.
FORMULATION AND MOTION PLANNING OF PEG-IN-HOLE TASK WITH MIXED LOGICAL DYNAMICAL SYSTEM THEORY

— It is well known that most assembly skills can be regarded as one of the signal-symbol Hybrid Dynamical Systems (HDS), since the interactive dynamics between an end eﬀector and the environment change according to contact conﬁgurations (geometrical constraints). In this paper, we ﬁrst propose a model of the peg-in-hole task, which is known as a typical assembly task. MLDS is adopted to formulate the peg-in-hole task, and an optimal solution with both continuous and logical variables under an objective function is found systematically. Then, a strategy to ﬁnd the optimal solution with less computation is proposed. Finally, some planning results for the peg-in-hole task are shown in order to verify the usefulness of the proposed method.
S-band shorted patch antenna for inter pico satellite communications

In this paper we study and evaluate shorted patch and CPW-feed square slot antennas, both of which we deem suitable for use in inter pico satellite communications in terms of gain, bandwidth and size. We have simulated both antennas in the High Frequency Structure Simulator (HFSS). Our results show that the shorted patch antenna achieves higher gain; e.g., 4.8 dBi, wider impedance bandwidth; e.g., 3.9-11.1 GHz with Voltage Standing Wave Ratio (VSWR) ≤ 2 at resonance frequencies of 4.4, 6.9 and 10.1 GHz. In addition, the Quasi Newton method is used to shift the shorted patch antenna's operating frequency to 2.45 GHz (S-band). This thus enables its use in the unlicensed ISM band without critically affecting its radiation performance. The simulated results show an impedance bandwidth of 3650 MHz (2.05-5.7 GHz) with VSWR ≤ 2 at a resonance frequency of 2.45 GHz.
Antifungal Activities of the Leaf Extract of Clerodendrum infortunatum Retz

The antifungal activity of the dealcoholized extract of the leaves of Clerodendrum infortunatum Retz. was determined on four different fungal organisms. The crude leaf extract significantly inhibited the growth of A. niger; P. frequentance; P. notataum and B. cinera when tested by turbidity and spore germination methods in concentration dependent fashion. The effects produced by the extract were compared with a standard antifungal agent.
A Risk-Aware Modeling Framework for Speech Summarization

Extractive speech summarization attempts to select a representative set of sentences from a spoken document so as to succinctly describe the main theme of the original document. In this paper, we adapt the notion of risk minimization for extractive speech summarization by formulating the selection of summary sentences as a decision-making problem. To this end, we develop several selection strategies and modeling paradigms that can leverage supervised and unsupervised summarization models to inherit their individual merits as well as to overcome their inherent limitations. On top of that, various component models are introduced, providing a principled way to render the redundancy and coherence relationships among sentences and between sentences and the whole document, respectively. A series of experiments on speech summarization seem to demonstrate that the methods deduced from our summarization framework are very competitive with existing summarization methods.
Qualitative analysis of psychosocial impact of diagnosis of Chlamydia trachomatis: implications for screening

Abstract Objectives: To investigate the psychosocial impact for women of a diagnosis of Chlamydia trachomatis and discuss the implications for the proposed UK chlamydia screening programme. Design: Qualitative study with semistructured interviews. Interview transcripts analysed to identify recurrent themes. Participants: Seventeen women with a current or recent diagnosis of chlamydia. Setting: A family planning clinic and a genitourinary medicine clinic in Glasgow. Results: Three themes were identified: perceptions of stigma associated with sexually transmitted infection, uncertainty about reproductive health after diagnosis, and anxieties regarding partner's reaction to diagnosis. Most women had not previously perceived sexually transmitted infections as personally relevant; this was a function of stereotypical beliefs about who was “at risk” of sexually transmitted infection. These beliefs were pervasive and negatively affected reactions to diagnosis and produced anxiety about disclosure of the condition to others (particularly sexual partners) and future reproductive morbidity. This anxiety, given the uncertain natural history of chlamydia, may prove difficult to dispel. Conclusions: There are three primary areas of concern for women after a diagnosis of chlamydia which need to be examined in the proposed screening programme. Information provided should normalise and destigmatise chlamydial infection and positively promote genitourinary medicine services. Support services should be available because notification of partner can cause anxiety. Uncertainty about future reproductive morbidity may be inevitable; staff providing screening will require guidance in providing advice under such conditions.
Cooperative Power Allocation Schemes and BER Performance in Decode-and-Forward OFCDM Based Relay Networks

In this paper, different power allocation schemes between the source and the cooperating relay nodes are analyzed and numerically evaluated for a two-hop decode-and-forward OFCDM based relay network. A cooperative power allocation ratio λ (=source power/total power) is defined and BER per- formance is evaluated for different values of λ in the relay network. It is shown that there exists an optimal power allocation ratio for different operating environment such as source-to- relay channel gains and time-frequency spreading factors. It is reported that (a) When all three channels (source-to-relay, source- to-destination and relay-to-destination) have equal gains, power ratio is found to be λ ≈ 0.8 (i.e., 80% and 20% of the total power is distributed among source and relay node respectively). The BER performance degrades at a faster rate when λ increases above the optimal value than the decrement at higher Eb/No . ( b) For a network with stronger source-to-relay link, the optimal λ remains invariant at higher Eb/No for equal channel gain case; however, the optimal power ratio moves toward lower value of λ at lower Eb/No. (c) The optimal λ remains almost the same with different time-frequency spreading factors.
Aging between places: supporting mobility for elderly

Aging in place has become a key strategy when designing new care strategies for elderly. Shortage of trained personnel and the increased age of the population have created a challenge for society and a need for innovative strategies in this field. Many research initiatives are dominated by an assistive living approach, or an ‘aging-in-place’ approach, focusing on how technology can substitute for loss of physical abilities and allow for remaining at home. This paper argues that independence and well-being also includes the ability to maintain social relationships by preserving mobility. We study three elderly travelers using a mobile, location-based service in an airport. Elderly travelers have different ways of coping with traveling and different motivations for traveling. By applying a cultural view of mobility in our analysis, we get a better understanding of mobility among elderly
The Chemokine SDF-1 Is a Chemoattractant for Human CD34+ Hematopoietic Progenitor Cells and Provides a New Mechanism to Explain the Mobilization of CD34+ Progenitors to Peripheral Blood

Hematopoietic progenitor cells migrate in vitro and in vivo towards a gradient of the chemotactic factor stromal cell-derived factor-1 (SDF-1) produced by stromal cells. This is the first chemoattractant reported for human CD34+ progenitor cells. Concentrations of SDF-1 that elicit chemotaxis also induce a transient elevation of cytoplasmic calcium in CD34+ cells. SDF-1-induced chemotaxis is inhibited by pertussis toxin, suggesting that its signaling in CD34+ cells is mediated by seven transmembrane receptors coupled to Gi proteins. CD34+ cells migrating to SDF-1 include cells with a more primitive (CD34+/CD38− or CD34+/DR−) phenotype as well as CD34+ cells phenotypically committed to the erythroid, lymphoid and myeloid lineages, including functional BFU-E, CFU-GM, and CFU-MIX progenitors. Chemotaxis of CD34+ cells in response to SDF-1 is increased by IL-3 in vitro and is lower in CD34+ progenitors from peripheral blood than in CD34+ progenitors from bone marrow, suggesting that an altered response to SDF-1 may be associated with CD34 progenitor mobilization.
On the CALM Principle for BSP Computation

In recent times, considerable emphasis has been given to two apparently disjoint research topics: data-parallel and eventually consistent, distributed systems. In this paper we propose a study on an eventually consistent, dataparallel computational model, the keystone of which is provided by the recent finding that a class of programs exists that can be computed in an eventually consistent, coordination-free way: monotonic programs. This principle is called CALM and has been proven by Ameloot et al. for distributed, asynchronous settings. We advocate that CALM should be employed as a basic theoretical tool also for data-parallel systems, wherein computation usually proceeds synchronously in rounds and where communication is assumed to be reliable. We deem this problem relevant and interesting, especially for what concerns parallel workflow optimization, and make the case that CALM does not hold in general for dataparallel systems if the techniques developed by Ameloot et al. are directly used. In this paper we sketch how, using novel techniques, the satisfiability of the if direction of the CALM principle can still be obtained, although just for a subclass of monotonic queries.
To Have and to Hold: A Dynamic Cost-Benefit Analysis of Temporary Unemployment Measures

This paper analyses the temporary unemployment regulations that several governments of European countries have introduced during the recent recession. We view these measures as a collection of real options that governments provide to firms and value these options. We study, in particular, the effect of such measures on the liquidation decision of the firm. In addition, we study the effect of government limitations on the duration of the programme. We find that temporary unemployment measures delay a firmâ€™s liquidation. However, since the costs of the programme are incurred before the benefits, the discounted benefit-to-cost ratio does not necessarily indicate the programme is good for welfare.