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Towards Increase in Quality by Preprocessed Source Code and Measurement Analysis of Software Applications  [PDF]
Zeeshan Ahmed,Saman Majeed
Computer Science , 2010,
Abstract: In this paper two intensive problems faced during software application's analysis and development process arose by the software industry are briefly conversed i.e. identification of fault proneness and increase in rate of variability in the source code of traditional and product line applications. To contribute in the field of software application analysis and development, and to mitigate the aforementioned hurdles, a measurement analysis based approach is discussed in this paper. Furthermore, a prototype is developed based on the concepts of discussed approach i.e. analyzing preprocessed source code characteristics, identifying additional level of complexities using several procedural and object oriented source code measures and visualizing obtained results in different diagrams e.g. bar charts, file maps and graphs etc. Developed prototype is discussed in detail in this paper and validated by means of an experiment as well.
Usability Evaluation Metrics of Tourism Mobile Applications  [PDF]
Nor Laily Hashim, Ahmed Jama Isse
Journal of Software Engineering and Applications (JSEA) , 2019, DOI: 10.4236/jsea.2019.127016
Abstract: The use of mobile phone applications for our touristic activity is very common nowadays with the simplification of smartphones. The tourism mobile applications currently can be argued to be one of the most useful applications that can facilitate the movement of travelers. However, existing usability evaluation metrics are too general to be applied to a more specific application, such as mobile tourism application. Thus, the objective of the study is to propose usability evaluation metrics for tourism mobile applications. The study employs four phases: identifying problem and the objective, encompassing the techniques of developing usability measurement of metrics, selecting the usability metrics of tourism mobile application and conducting expert review and verification. The verification phase was conducted using expert review approach to measure the proposed metrics in terms of its consistency ease of use, understandable, verifiable and overall impression. The finding revealed that the proposed metrics have been well received by the experts in terms of consistency, ease to use, understandable, verifiability and overall impression. Finally, this study presented usability metrics for the tourism mobile applications that can be used by designers or usability practitioners in creating a useable mobile application for the tourists.
SOFTWARE COMPONENT COMPLEXITY MEASUREMENT THROUGH PROPOSED INTEGRATION METRICS
Ms. Latika
Journal of Global Research in Computer Science , 2011,
Abstract: Component based software paradigm has become one of the preferred streams for developing large and complex systems by integrating prefabricated software components which not only facilitates the process of software development but is also changing the ways for software professionals to develop software applications. Till today, numerous attempts have been made by several organizations, software development teams, developers as well as researchers to improve software component systems through improved measurement tools and techniques i.e. through an effective metrics. Our paper is a simple attempt to work for the demand of an appropriate and relevant metrics and in this paper, we’ve proposed some integration metrics for the measurement of complexity of a software component, which could be used as one of the approaches for further guidance in component complexity measurement and problem reduction. Keywords: Component complexity measurement, COSS, integration metrics.
Biodegradable Polylactic Acid (PLA) Microstructures for Scaffold Applications  [PDF]
G. -J. Wang,K. -H. Ho,C. -C. Hsueh
Computer Science , 2008,
Abstract: In this research, we present a simple and cost effective soft lithographic process to fabricate PLA scaffolds for tissue engineering. In which, the negative photoresist JSR THB-120N was spun on a glass subtract followed by conventional UV lithographic processes to fabricate the master to cast the PDMS elastomeric mold. A thin poly(vinyl alcohol) (PVA) layer was used as a mode release such that the PLA scaffold can be easily peeled off. The PLA precursor solution was then cast onto the PDMS mold to form the PLA microstructures. After evaporating the solvent, the PLA microstructures can be easily peeled off from the PDMS mold. Experimental results show that the desired microvessels scaffold can be successfully transferred to the biodegradable polymer PLA.
SOFTWARE COMPONENT COMPLEXITY MEASUREMENT THROUGH PROPOSED INTEGRATION METRICS
Ms. Latika
Journal of Global Research in Computer Science , 2011,
Abstract: Component based software paradigm has become one of the preferred streams for developing large and complex systems by integrating prefabricated software components which not only facilitates the process of software development but is also changing the ways for software professionals to develop software applications. Till today, numerous attempts have been made by several organizations, software development teams, developers as well as researchers to improve software component systems through improved measurement tools and techniques i.e. through an effective metrics. Our paper is a simple attempt to work for the demand of an appropriate and relevant metrics and in this paper, we’ve proposed some integration metrics for the measurement of complexity of a software component, which could be used as one of the approaches for further guidance in component complexity measurement and problem reduction.
Efficiency Evaluation Metrics for Wireless Intelligent Sensors Applications  [PDF]
Saad Chakkor,El Ahmadi Cheikh,Mostafa Baghouri,Abderrahmane Hajraoui
Computer Science , 2014, DOI: 10.5815/ijisa.2014.10.01
Abstract: The metrology field has been progressed with the appearance of the wireless intelligent sensor systems providing more capabilities such as signal processing, remote multi-sensing fusion etc. This kind of devices is rapidly making their way into medical and industrial monitoring, collision avoidance, traffic control, automotive and others applications. However, numerous design challenges for wireless intelligent sensors systems are imposed to overcome the physical limitations in data traffic, such as system noise, real time communication, signal attenuation, response dynamics, power consumption, and effective conversion rates etc, especially for applications requiring specific performances. This paper analyzes the performance metrics of the mentioned sensing devices systems which stands for superior measurement, more accuracy and reliability. Study findings prescribe researchers, developers/ engineers and users to realizing an optimal sensing motes design strategy that offers operational advantages which can offer cost-effective solutions for an application.
Towards conformally flat isothermic metrics  [PDF]
Adam Szereszewski,Antoni Sym
Mathematics , 2013,
Abstract: According to [8] if the stationary Schroedinger equation on n-dim. Riemann space admits R-separation of variables (i.e. separation of variables with a factor R), then the underlying metric is necessarily isothermic. An important sub-class of isothermic metrics are the so called binary metrics. In this paper we study conditions for vanishing of components C_ijkl of Weyl tensor of arbitrary 4-binary metrics. In particular all 4-binary metrics for which C_ijij are the only non-vanishing components are classified into four classes. Finally, conformally flat metrics of the last class are isolated.
The Caratheodory and Kobayashi metrics and applications in complex analysis  [PDF]
Steven G. Krantz
Mathematics , 2006,
Abstract: The Caratheodory and Kobayashi metrics have proved to be important tools in the function theory of several complex variables. But they are less familiar in the context of one complex variable. Our purpose here is to gather in one place the basic ideas about these important invariant metrics for domains in the plane and to provide some illuminating examples and applications.
Molecular adaptation of a plant-bacterium outer membrane protease towards plague virulence factor Pla
Johanna Haiko, Liisa Laakkonen, Benita Westerlund-Wikstr?m, Timo K Korhonen
BMC Evolutionary Biology , 2011, DOI: 10.1186/1471-2148-11-43
Abstract: Pla and Epo expressed in Escherichia coli are both functional endopeptidases and cleave human serine protease inhibitors, but Epo failed to activate plasminogen and to mediate invasion into a human endothelial-like cell line. Swapping of ten amino acid residues at two surface loops of Pla and Epo introduced plasminogen activation capacity in Epo and inactivated the function in Pla. We also compared the structure of Pla and the modeled structure of Epo to analyze the structural variations that could rationalize the different proteolytic activities. Epo-expressing bacteria managed to invade human cells only after all extramembranous residues that differ between Pla and Epo and the first transmembrane β-strand had been changed.We describe molecular adaptation of a protease from an environmental setting towards a virulence factor detrimental for humans. Our results stress the evolvability of bacterial β-barrel surface structures and the environment as a source of progenitor virulence molecules of human pathogens.Analyses of genomic sequences of bacterial pathogens have given an unprecedented view into their biology and evolutionary processes [1,2]. A conclusion from these studies is that highly similar genes, many of which are associated with bacterial virulence, are found across great phylogenetic distances and in different genetic elements, which is indicative of horizontal gene transfer. These families of virulence factors - including toxins, transport systems, adhesins, and antibiotic resistance factors - have evolved by adaptive radiation of a functional progenitor molecule to and within other strains and species to support survival in differing ecological niches [2]. The adaptation, or "evolutionary fine-tuning" of virulence factors that results in increased fitness, can involve modification of catalytic efficiency or substrate specificity of an enzyme, or alteration of bacterial interactions with target cells [2]. The mechanisms of horizontal gene transfer and th
Models, Metrics, and Measurement in Developmental Psychology  [PDF]
Zachary Stein,Katie Heikkinen
Integral Review , 2009,
Abstract: Developmental psychology is currently used to measure psychologicalphenomena and by some, to re-design communities. While we generally support theseuses, we are concerned about quality control standards guiding the production of usableknowledge in the discipline. In order to address these issues precisely, we provide anoverview of the discipline's various facets. We distinguish between developmentalmodels and developmental metrics and relate each to different types of quality-controldevices. In our view, models are either explanatory or descriptive, and their quality isevaluated in terms of specific types of disciplinary discourse. Metrics are eithercalibrated measures or soft measures, and their quality is evaluated in terms of specificpsychometric parameters. Following a discussion on how developmentalists makemetrics, and on a variety of metrics that have been made, we discuss the two keypsychometric quality-control parameters, validity and reliability. This sets the stage for alimited and exploratory literature review concerning the quality of a set of existingmetrics. We reveal a conspicuous lack of psychometric rigor on the part of some of themost popular developmental approaches and invite remedies for this situation.
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