Miracle-dz/UniFAR-FTUs huggingface dataset:
Use of semantic wiki as a capturing tool for lessons learned in project management

The use of lessons learned in project management is still not fully satisfactory. The current web-based project management systems (WPMS) mainly support project lifecycle with no much consideration to project initiation and closing. The main objective of this paper is to incorporate the features of semantic web and features of wiki technology to capture project lessons learned knowledge. This paper also illustrates how the semantic wiki can utilize structured collaboration knowledge sharing to improve closing and initiation phases in project management. A prototype has been developed using semantic MediaWiki in virtual environment, real project data obtained and inserted into the system. A questionnaire has been designed and used for data gathering in an Egyptian engineering and construction company. Questionnaire analysis showed that semantic wiki improved lessons learned capture process.
Distinct types of lung disease caused by functional subsets of antiviral T cells

T cells appear to play a central role in viral bronchiolitis, but the effects of different functional and phenotypic subgroups of T cells have not been defined. To test the activities of T cells recognizing individual proteins of respiratory syncytial (RS) virus, virus-specific T cell lines were produced from mice primed by scarification with recombinant vaccinia viruses expressing the major surface glycoprotein (G), fusion protein (F) or second matrix (22K) protein of RS virus. As previously reported, the in vitro characteristics of these cells are predetermined by the choice of RS virus protein: 22K-specific cells are predominantly class I-restricted cytolytic CD8+ cells; F-specific cells, a mixture of cytolytic CD8+ cells and CD4+ cells with a T helper 1 cell (Th1) cytokine secretion profile, whereas those from G- sensitized mice are almost exclusively CD4+, with Th2 characteristics. Mice infected intranasally with RS virus showed mild illness and recovered fully, but developed respiratory distress after intravenous injections of T cells. Dose-for-dose, infected mice receiving G- specific cells suffered the most severe (sometimes fatal) illness, characterized by lung hemorrhage, pulmonary neutrophil recruitment (shock lung) and intense pulmonary eosinophilia. This disease was further enhanced by coinjection of 22K-specific cells, which alone caused mild shock lung without eosinophilia. F-specific cells caused minimal enhancement of pathology and had little or no effect on the disease caused by G-specific cells. Each cell line reduced lung virus titer and combined injections of G- and 22K-specific cells eliminated infection completely. The in vitro characteristics of these antiviral T cell lines therefore predict the pathological effects in vivo. Moreover, different forms of viral bronchiolitis can be caused by functionally distinct types of activated T cell.
The Impact of Color on Warnings Research

Researchers have examined a variety of attributes that influence a warning's ability to communicate important product hazards. These attributes include font type, signal words, and the use of icons. One attribute that has been noticeably absent from the warnings literature is color. Therefore, the purpose of the present study was to determine the appropriateness of achromatic stimuli in product warning research. Thirty-three undergraduate students rated color and achromatic versions of twelve labels. These labels varied across four levels of product class and three levels of signal word. All labels were evaluated on six attributes: salience, readability, hazardousness, likelihood of injury, carefulness, and familiarity. A composite variable called “perceived hazard” was formed from the averaged ratings of hazardousness, carefulness, and likelihood of injury. Moreover, an additional variable “perceived readability” was composed of the mean ratings of readability and saliency. Results showed that color labels were perceived as more readable and hazardous than achromatic labels. Implications for warning research are discussed.
Multiphase modeling of nitrate photochemistry in the quasi-liquid layer (QLL): implications for NO x release from the Arctic and coastal Antarctic snowpack

We utilize a multiphase model, CON-AIR ( Con densed Phase to Air Transfer Model), to show that the photochemistry of nitrate (NO 3 − ) in and on ice and snow surfaces, specifically the quasi-liquid layer (QLL), can account for NO x volume fluxes, concentrations, and [NO]/[NO 2 ] (γ=[NO]/[NO 2 ]) measured just above the Arctic and coastal Antarctic snowpack. Maximum gas phase NO x volume fluxes, concentrations and γ simulated for spring and summer range from 5.0×10 4 to 6.4×10 5 molecules cm −3 s −1 , 5.7×10 8 to 4.8×10 9 molecules cm −3 , and ~0.8 to 2.2, respectively, which are comparable to gas phase NO x volume fluxes, concentrations and γ measured in the field. The model incorporates the appropriate actinic solar spectrum, thereby properly weighting the different rates of photolysis of NO 3 − and NO 2 − . This is important since the immediate precursor for NO, for example, NO 2 − , absorbs at wavelengths longer than nitrate itself. Finally, one-dimensional model simulations indicate that both gas phase boundary layer NO and NO 2 exhibit a negative concentration gradient as a function of height although [NO]/[NO 2 ] are approximately constant. This gradient is primarily attributed to gas phase reactions of NO x with halogens oxides (i.e. as BrO and IO), HO x , and hydrocarbons, such as CH 3 O 2 .
Gaussian MIMO wiretap channel under receiver side power constraints

We consider the multiple-input multiple-output (MIMO) wiretap channel under a minimum receiver-side power constraint in addition to the usual maximum transmitter-side power constraint. This problem is motivated by energy harvesting communications with wireless energy transfer, where an added goal is to deliver a minimum amount of energy to a receiver in addition to delivering secure data to another receiver. In this paper, we characterize the exact secrecy capacity of the MIMO wiretap channel under transmitter and receiver-side power constraints. We first show that solving this problem is equivalent to solving the secrecy capacity of a wiretap channel with a double-sided correlation matrix constraint on the channel input. We show the converse by extending the channel enhancement technique to our case. We present two achievable schemes that achieve the secrecy capacity: the first achievable scheme uses a Gaussian codebook with a fixed mean, and the second achievable scheme uses artificial noise (or cooperative jamming) together with a Gaussian codebook. The role of the mean or the artificial noise is to enable energy transfer without sacrificing from the secure rate. This is the first instance of a channel model where either the use of a mean signal or use of channel prefixing via artificial noise is strictly necessary in the MIMO wiretap channel.
Laboratory diagnosis of central nervous system infections with herpes simplex virus by PCR performed with cerebrospinal fluid specimens

Until recently, the laboratory diagnosis of central nervous system (CNS) infections with herpes simplex virus (HSV) has been limited by poor sensitivity and/or specificity. We assessed the diagnostic utility of PCR for detection of HSV in over 2,100 specimens referred to the Mayo Clinic from August 1993 to May 1996. DNA extracted from cerebrospinal fluid (CSF) samples with IsoQuick was amplified by PCR with oligonucleotide primers directed to the DNA polymerase gene of HSV, yielding a 290-bp amplicon. HSV DNA was detected in 150 (135 by gel electrophoresis, 15 by Southern blotting only) of 2,106 (7.1%) specimens. PCR-positive CNS disease occurred in patients ranging in age from 13 days to 89 years; 59% of the cases occurred in patients between the ages of 30 and 69, and 21 (14%) of the patients were infants. Genotype analysis was not routinely performed; however, amplification of a 335-bp product within the thymidine kinase gene of HSV revealed 13 positions within a span of 80 nucleotides that accurately identified the two serotypes of the virus according to 14 reference strains. We conclude that PCR detection of HSV DNA in CSF specimens should be considered an emerging "gold standard" for the laboratory diagnosis of CNS infections with this virus.
Busy Doing Nothing: Researching the phenomenon of 'Quiet Time' in a challenge-based wilderness therapy program

Wilderness therapy programs are increasingly regarded as an effective alternative to more traditional forms of therapy for people identified as ‘at risk’ or ‘vulnerable’ (Gass, 1993). Despite substantial evidence to support the use of wilderness and adventure experiences to promote attitudinal and behavioural change, much remains unknown about the process of change and the experiences of participants. The purpose of the research was to generate a grounded theory about participants’ experiences of Quiet Time within a challenge-based wilderness therapy program. The central question to be addressed was: What is the phenomenon of Quiet Time from the participants’ point of view and how do they use this phenomenon in a challenge-based wilderness therapy program? A grounded theory design (Strauss & Corbin, 1998) was chosen as a methodology to guide the collection, analysis and interpretation of data. Sixteen male and two female participants from four Mountain Challenge wilderness therapy programs scheduled between February 2002 and February 2005 participated in the study. All but one of the participants came to the Mountain Challenge as part of ongoing therapy for drug and/or alcohol addiction. This triggered significant and particular ethical concerns that impacted on the design of the study. The exception was a female trainee facilitator who participated as all other participants and had no facilitative responsibilities. Data were collected in the form of interviews, photographs, journals, field notes and standard program documentation. An analytical framework using inductive and deductive categories was selected to analyse the data. Based on the findings a theoretical model of the phenomenon of Quiet Time was deduced and a number of propositions for practice and research advanced. The research findings identify Quiet Time as a ‘sense’ of solitude that, contrary to understandings of solitude as an objective and external condition, is defined by the four co-occurring subjective and internal conditions: a sense of being alone; a positive mind frame; a personal time perspective and focussed attention. Further analysis led to an
Robust-Optimal Control of a Nonlinear Two Degree-of-Freedom Helicopter

This paper presents the nonlinear robust-optimal control for the attitudes of a two-degree-of-freedom (2DOF) helicopter. First, a Takagi-Sugeno (T-S) fuzzy model is employed to approximate the nonlinear 2DOF helicopter. The LMI-based relaxed stability conditions are applied to design the nonlinear fuzzy controller. Using the method of parallel distributed compensator (PDC), the nonlinear fuzzy controller regulates the input voltage of two DC motors such that the attitudes of an experimental helicopter are tracked. Computer simulations and experiment results demonstrate the effectiveness of the nonlinear flight control.
Development of a novel radiographic measure of lumbar instability and validation using the facet fluid sign

Background Lumbar spinal instability is frequently referenced in clinical practice and the scientific literature despite the lack of a standard definition or validated radiographic test. The Quantitative Stability Index (QSI) is being developed as a novel objective test for sagittal plane lumbar instability. The QSI is calculated using lumbar flexion-extension radiographs. The goal of the current study was to use the facet fluid sign on MRI as the "gold standard" and determine if the QSI is significantly different in the presence of the fluid sign. Methods Sixty-two paired preoperative MRI and flexion-extension exams were obtained from a large FDA IDE study. The MRI exams were assessed for the presence of a facet fluid sign, and the QSI was calculated from sagittal plane intervertebral rotation and translation measurements. The QSI is based on the translation per degree of rotation (TPDR) and is calculated as a Z-score. A QSI > 2 indicates that the TPDR is > 2 std dev above the mean for an asymptomatic and radiographically normal population. The reproducibility of the QSI was also tested. Results The mean difference between trained observers in the measured QSI was between -0.28 and 0.36. The average QSI was significantly (P = 0.047, one-way analysis of variance) higher at levels with a definite fluid sign (2.3±3.2 versus 0.60±2.4). Conclusions Although imperfect, the facet fluid sign observed may be the best currently available test for lumbar spine instability. Using the facet fluid sign as the "gold standard" the current study documents that the QSI can be expected to be significantly higher in the presence of the facet fluid sign. This supports that QSI might be used to test for sagittal plane lumbar instability. Clinical Relevance A validated, objective and practical test for spinal instability would facilitate research to understand the importance of instability in diagnosis and treatment of low-back related disorders.
Error Tree: A Tree Structure for Hamming & Edit Distances & Wildcards Matching

Error Tree is a novel tree structure that is mainly oriented to solve the approximate pattern matching problems, Hamming and edit distances, as well as the wildcards matching problem. The input is a text of length $n$ over a fixed alphabet of length $\Sigma$, a pattern of length $m$, and $k$. The output is to find all positions that have $\leq$ $k$ Hamming distance, edit distance, or wildcards matching with $P$. The algorithm proposes for Hamming distance and wildcards matching a tree structure that needs $O(n\frac{log_\Sigma ^{k}n}{k! })$ words and takes $O(\frac {m^k}{k! } + occ$)($O(m + \frac {log_\Sigma ^kn}{k! } + occ$) in the average case) of query time for any online/offline pattern, where $occ$ is the number of outputs. As well, a tree structure of $O(2^{k}n\frac{log_\Sigma ^{k}n}{k! })$ words and $O(\frac {m^k}{k! } + 3^{k}occ$)($O(m + \frac {log_\Sigma ^kn}{k! } + 3^{k}occ$) in the average case) query time for edit distance for any online/offline pattern.
Protective effect of crocin against reperfusion-induced cardiac arrhythmias in anaesthetized rats

The aim of the present study was to investigate the effects of crocin - a natural antioxidant derived from saffron - on cardiac reperfusion-induced arrhythmia and antioxidant systems such as catalase and superoxide dismutase (SOD) enzyme activities, glutathione (GSH) and malondialdehyde (MDA, as a marker of lipid peroxidation) levels. Rats in 4 experimental groups were administered crocin (20 mg/kg/day) or vehicle (i.p.) for 21 days with or without cardiac ischemia-reperfusion (IR). At the end of this period, hearts of anaesthetized animals in IR and “Cr + IR” groups were subjected to 10 min occlusion of the left anterior descending coronary artery and thereafter reperfused for 30 min. The results suggest that crocin is partially capable of suppressing reperfusion-induced arrhythmias. Compared to control group, ischemic-reperfusion injury significantly decreased SOD activity and GSH level and increased MDA level of heart muscle. “Cr + IR” group showed remarkably increased catalase activity in heart tissue (28.7 ± 6.6 vs. 23.6 ± 4.1 U/mg protein, P < 0.05) compared to the IR group. The level of cardiac tissue SOD activity in the “Cr + IR” group animals did not decline significantly compared to rats that were administered crocin alone with no ischemia. The results suggest a protective role of crocin on cardiac reperfusion arrhythmias which may at least partially be related to stability or even amplification of antioxidant systems. Crocin may potentially be useful for treatment or prevention of arrhythmias in patients with ischemic heart disease and this issue remains to be investigated in future clinical studies.
Harmonic Estimation Algorithm for Power System Based on Improved MUISC and Linear Neural Networks

The paper proposes harmonic estimation algorithm for power system based on Multiple Signal Classification (MUSIC) and linear neural network because of the insufficiency of harmonic frequency estimation algorithm. The con- ventional MUSIC algorithm has the advantage of higher estimation accuracy, while the disadvantage is that the computa- tional complexity is high and it cannot estimate the harmonic phase and amplitude. In the paper, a new harmonic estima- tion algorithm for power system is constructed with combining the MUSIC algorithm, the multistage Wiener filter (MSWF) and linear neural network. Theoretic analysis and simulation experiments show that the requirement to data is relatively low, and has good harmonic estimation accuracy and reliability.
Mobile Agents and Software Deployment

Software deployment is a complex procedure that evolves the release, installation, adaptation, reconfiguration, update, activation, deactivation, retirement and remove of software in a set of sites. This paper presents and describes some ideas concerning the use of the mobile agents as a promising paradigm to support this important software engineering activity. The use of workflow is also presented as a coordination tool for expressing large-scale software deployment activities.
Civic engagement and social capital in ship-preservation work in Norway: The scope, impact, and demographics of formal volunteering and publicly funded engagements

Introduction: The current focus on volunteering related to civic engagement in Norway has led to a rise in complementary private initiatives and public funding, specifically with regard to the preservation of historic ships. Volunteers for this programme are primarily men aged over 50 years who spend significant amounts of leisure time in municipalities along the coast, fjords, and lakes of Norway. Despite the historical significance of this kind of volunteering, the social capital that is gained and the substantial funding that the Directorate for Cultural Heritage provides, no study has mapped the impact or outcome of these efforts over the past 20 years. Objective: The primary objective has been to study the scope of formal voluntary ship-preservation work in Norway. This article aims to map the volunteers in associations in this programme, the breadth of their efforts, and their motivations. Design: All ships (n = 90) that were funded by the Directorate in 2009 were included in the case study. A qualitative survey of telephone interviews with 82 key informants (100% response rate) was conducted, and questionnaires were mailed to gather descriptive statistics. Results: Age, gender and a robust relationship with the region and the specific ships appear to be relevant to voluntary ship preservation activities. The reasons for commitment and effort were companionship, unity, and memories of and relationship to the specific ships. The strong socio-political aspect of the volunteers’ efforts was reflected in an aggregate of approximately 5.5 million euros in unpaid work. Conclusion: Volunteering in this context is an important component of social capital among elderly men in Norway. The group dynamics and strong collective aspect of these voluntary associations maintain internal cohesion and the members only leave when forced by increasing age, poor health, or insufficient financial resources.
Elective treatment of the neck in squamous cell carcinoma of the larynx: Clinical experience

In head and neck cancer, the best prophylactic treatment for the N0 neck is a subject of debate. Some authors propose lateral selective lymph node dissection (levels II–IV) on the basis of the probability of finding occult metastases in those lymph nodes. A more extensive procedure including Vth level is considered unnecessary because of the low incidence of metastases in the posterior triangle.
Product Line Variability with Elastic Components and Test-Driven Development

In this work we present a systematic approach for the creation of new variant software components via customization of existing core assets of a software product line. We consider both functional and quality variants and address the issue of a controlled creation of variants which considers the reference architecture and its co-evolution with a number of other artifacts including components and functional and quality test suites. Furthermore we discuss the relationship between the popular agile practice of test-driven development (TDD) and how it can be used to assist the evolution of software components of a software product line.
Improvisation and teacher expertise: a comparative case study

This thesis reports on an enquiry into the nature of teacher expertise which pays particular attention to its improvisatory nature. The study draws on three main areas of literature and theory: critical studies in improvisation; expertise and expert practice and organisation theory. These are used to present a model of teacher expertise that is derived from grounded theory. The data is taken from a series of comparative case studies of seven experienced teachers working in secondary schools in the South West of England and who have been identified as being expert within their school setting. Constant comparative methods of analysis have been used to draw out themes from the data. This has contributed to a grounded theory that identifies the nature of teacher expertise. The findings that arise from the data are that teachers' expertise is best expressed as continually evolving practice, a process as opposed to an end state. Advanced professional practice is best described as a 'teacher with expertises' and this is preferable to the term 'expert teacher'. The data shows that teacher expertise is fundamentally improvisatory and that this has a positive impact on the quality of teaching. The improvisation nature of teacher expertise is derived from four processes: the expression of tacit knowledge, relational and interactional practice, personalisation of the learning environment and self reflection leading to the continual adaptation of pedagogy. The resulting model of teacher expertise casts new light on how we understand advanced professional practice and this has implications for school leaders, teachers, researchers and those with responsibility for the initial training and the continuing professional development of teachers.
Synaptic Glutamate Spillover Due to Impaired Glutamate Uptake Mediates Heroin Relapse

Reducing the enduring vulnerability to relapse is a therapeutic goal in treating drug addiction. Studies with animal models of drug addiction show a marked increase in extrasynaptic glutamate in the core subcompartment of the nucleus accumbens (NAcore) during reinstated drug seeking. However, the synaptic mechanisms linking drug-induced changes in extrasynaptic glutamate to relapse are poorly understood. Here, we discovered impaired glutamate elimination in rats extinguished from heroin self-administration that leads to spillover of synaptically released glutamate into the nonsynaptic extracellular space in NAcore and investigated whether restoration of glutamate transport prevented reinstated heroin seeking. Through multiple functional assays of glutamate uptake and analyzing NMDA receptor-mediated currents, we show that heroin self-administration produced long-lasting downregulation of glutamate uptake and surface expression of the transporter GLT-1. This downregulation was associated with spillover of synaptic glutamate to extrasynaptic NMDA receptors within the NAcore. Ceftriaxone restored glutamate uptake and prevented synaptic glutamate spillover and cue-induced heroin seeking. Ceftriaxone-induced inhibition of reinstated heroin seeking was blocked by morpholino-antisense targeting GLT-1 synthesis. These data reveal that the synaptic glutamate spillover in the NAcore results from reduced glutamate transport and is a critical pathophysiological mechanism underling reinstated drug seeking in rats extinguished from heroin self-administration.