bluuebunny/crossref_metadata_2025 huggingface dataset:
Mercantilist Treasure, Capitalist Circulation, and Gender Distinctions in the Grimm Brothers' Fairy Tale Hänsel und Gretel
Authors: Pfeiffer Peter C.
Published: March 2017

Drawing on paradigms of the New Economic Criticism, this essay shows how subsequent editions of the Grimm Brothers' fairy tale Hänsel und Gretel construe an increasingly complex network of economic metaphors and themes. In addition, it argues that these economic topoi are tightly interwoven with modes of gender differentiation that are partially figured in the imaginary geography put forth in the fairy tale. The fairy tale ultimately re-establishes a social organisation that subjugates women under male authority and shows how a shift from a mercantilist notion of economic activity to one of a capitalist market economy seemingly legitimates such an arrangement.
Commentaires sur les Scaurus décrits par Léon Fairmaire (1820-1906) (Coleoptera Tenebrionidae)
Authors: Labrique Harold
Published: March 2017

L'entomologiste français Léon Fairmaire a décrit onze espèces dans le genre Scaurus Fabricius. La présente note est consacrée à l'étude du matériel typique de cet auteur conservé au Muséum National d'Histoire Naturelle à Paris et au Museo Civico di Storia Naturale à Gênes. Seules deux espèces, Scaurus bougonii Fairm. et Scaurus contractus Fairm., ainsi qu'une forme bien caractérisée, Scaurus punctatus var. asperulus Fairm., restent valides, les autres taxons décrits par Fairmaire ayant été mis en synonymie avec des espèces décrites antérieurement. Une synonymie nouvelle est établie : Scaurus gracilicornis Fairmaire = Scaurus barbarus Solier.
Coléoptères intéressants découverts par piégeage dans les cavités d'arbres du Val de Saône (Rhône, France)
Authors: Dabry Julien
Published: March 2017

Some interesting Coleoptera collected by pit-trapping in tree cavities in Val de Saône (Rhône, France)

A sampling of Coleoptera living in trees cavities in the bocage of Val de Saône (Rhône, S-E. France) gave as a result some species considered as rare : Rhopalocerus rondanii (Colydiidae), Ampedus ruficeps (Elateridae) et Corticeus bicoloroides (Tenebrionidae). Their biology as well as the pit-trapping method in trees cavities are discussed. The use of this method should become widespread for entomological inventories.
Les Lamiaires (Coleoptera Cerambycidae) rencontrés sur les Gymnospermes en Afrique sub-saharienne
Authors: Sudre Jérôme , Téocchi Pierre
Published: March 2017

Cette note, a pour objectif de situer géo graphiquement dans les grandes lignes les conifères (autochtones et allochtones) en Afrique sub-saharienne, ainsi que de réunir les rares éléments bibliographiques concernant les lamiaires se développant dans ces essences, sachant que la quasi-totalité des observations ci-dessous proviennent des travaux de Duffy (1957 et 1980) et que nous n'apportons que peu d'éléments nouveaux.

Par ailleurs, elle a pour but d'inciter les entomologistes qui se rendent en Afrique, ainsi que les résidents, à rechercher, dans la mesure de leurs moyens, des conifères sur lesquels il y aurait la possibilité de trouver des larves de lamiaires. Ceci dit, des recherches sur les espèces indigènes seraient préférables, car actuellement aucune espèce de lamiaires n'y a été observée ; seuls les conifères importés ont donné quelques Cerambycidae.
Un haut lieu paléontologique de la région lyonnaise : Saint Quentin Fallavier (Isère)
Authors: Rulleau Louis
Published: March 2017

Les mines de fer de la région lyonnaise, et plus particulièrement celles de Saint Quentin Fallavier -La Verpillière (Isère), activement exploitées dans la deuxième moitié du XIXe siècle, ont approvisionné en fossiles de nombreuses collections paléontologiques européennes. La valeur esthétique de ces fossiles (ammonites surtout), due à leur magnifique conservation, ne doit pas faire oublier l'intérêt scientifique d'un site qui, malgré la forte condensation des dépôts, a fourni une faune très diversifiée. Ce site a été beaucoup étudié par les géologues lyonnais entre les années 1850 et 1930, puis délaissé par la suite. Des recherches récentes ont permis de préciser la stratigraphie et le régime des dépôts ferrugineux et de procéder à une révision des faunes d'ammonites. Des associations d'ammonites nouvelles pour la région lyonnaise, pourtant riche en gisements du Lias supérieur et du Dogger inférieur, ont ainsi pu être mises en évidence, à la base du Toarcien moyen et dans l'Aalénien supérieur.
Les plantes hôtes des bruches (Coleoptera Bruchidae) de la faune de France, une analyse critique
Authors: Delobel Bernard , Delobel Alex
Published: March 2017

Une liste des plantes hôtes des bruches de France est présentée. Elle com¬ porte l'ensemble des données bibliographiques analysées de manière critique et un certain nombre de résultats originaux obtenus d'élevages de larves récoltées dans la nature. Cette liste nous permet de définir pour chaque espèce de bruche une «tribu hôte » (pour les bruches des Légumineuses) ou une «famille hôte » (pour les autres espèces) au sein de laquelle l'espèce est capable de se développer. Des relations trophiques peuvent néanmoins exister de manière exceptionnelle en dehors de ce cadre. Une liste actualisée des Bruchidae de France est également présentée.
Sur la notion de tépale
Authors: Berthet Paul
Published: March 2017

Le terme «tépale » recouvre deux réalités. Dans un cas (Monocotylédones) on l'applique de manière abusive aux pièces d'un périanthe constitué de sépales et de pétales qui se ressemblent, mais qui sont parfaitement distincts en tant que tels, car disposés en deux verticilles. Il s'agit simplement de fleurs dont les sépales sont pétaloïdes. Dans d'autres cas, ce terme s'applique, à juste titre, à un ensemble de pièces pétaloïdes en nombre indéfini insérées selon une spirale, sans distinction possible entre calice et corolle : il s'agit alors des véritables tépales.
Les Maculinea (Lepidoptera, Lycaenidae) de la Réserve naturelle du Marais de Lavours (Ain, France) et ses environs
Authors: Rozier Yves , Culat Alban
Published: March 2017

In a previous note (Rozier, 1998) we briefly presented the natural reserve of the «marais de Lavours ». It is one of the last wetland in France where the three Maculinea'' s species : Dusky Large Blue (Maculinea nausithous ), Scarce Large Blue (M. teleius) and Alcon Blue (M. alcon) are presents. A prospecting of the xeric grassland near the reserve allowed the discovery of a fourth sort : the large blue (M. arion) making the area a zone especially rich in Maculinea.
Les lichens et l'histoire de la symbiose vers 1870, notes historiques portant en particulier sur le genre Usnea
Authors: Perru Olivier
Published: March 2017

From 1868, Schwendener supposed a double nature for the lichens and he recognized an antagonistic relation between fungi and algae. Moreover, he talked about a relation between a master and a slave. So, he located lichens within the limits of parasitism, while, at the time, they were classified in a particular category of plants, between fungi and algae. In this view, he carried on with his works and published next year Die Algentypen der Flechtengonidien (1869). But some botanists, as Reinke and De Bary, will not be so categorical. Many botanists accepted the assumption that lichens have a double nature. In this view, Famintsyn and Baranetsky cultivated the algae outside the thallus of lichen (1867). But some scientists protested against the name of this association : the relation between a master and a slave.
Diptères nouveaux ou peu connus pour la faune de France
Authors: Withers Philippe
Published: March 2017

Une liste commentée concernant une centaine de diptères intéressants pour la faune française est présentée. 43 d'entre elles sont signalées pour la première fois.
Garage location selection for residential house by WASPAS-SVNS method
Authors: BAUŠYS Romualdas , JUODAGALVIENĖ Birutė
Published: March 2017

The paper deals with the location selection problem of the garage at the parcel of a single-family residential house. The mathematical model for this real life problem is constructed within MCDM framework. The significance of the chosen criteria was evaluated by AHP approach. The formulated MCDM problem is solved applying WASPAS extension, namely WASPAS-SVNS. The applied single-valued neutrosophic set allows to modeling uncertainty of the initial information explicitly. A numerical example is considered in order to verify the proposed approach.
The Effect of Mixing on the Observed Metallicity of the Smith Cloud
Authors: Henley David B. , Gritton Jeffrey A. , Shelton Robin L.
Published: March 2017

Measurements of high-velocity clouds’ metallicities provide important clues about their origins, and hence on whether they play a role in fueling ongoing star formation in the Galaxy. However, accurate interpretation of these measurements requires compensating for the galactic material that has been mixed into the clouds. In order to determine how much the metallicity changes as a result of this mixing, we have carried out three-dimensional wind-tunnel-like hydrodynamical simulations of an example cloud. Our model cloud is patterned after the Smith Cloud, a particularly well studied cloud of mass

. We calculated the fraction of the high-velocity material that had originated in the galactic halo,

, for various sight lines passing through our model cloud. We find that

generally increases with distance from the head of the cloud, reaching ∼0.5 in the tail of the cloud. Models in which the metallicities (relative to solar) of the original cloud,

, and of the halo,

, are in the approximate ranges

and

, respectively, are in rough agreement with the observations. Models with

and

are also in rough agreement with the observations, but such a low halo metallicity is inconsistent with recent independent measurements. We conclude that the Smith Cloud’s observed metallicity may not be a true reflection of its original metallicity and that the cloud’s ultimate origin remains uncertain.
Copyright and the Use of Images as Biodiversity Data
Authors: Egloff Willi , Agosti Donat , Kishor Puneet , Patterson David , Miller Jeremy
Published: March 2017

Taxonomy is the discipline responsible for charting the world’s organismic diversity, understanding ancestor/descendant relationships, and organizing all species according to a unified taxonomic classification system. Taxonomists document the attributes (characters) of organisms, with emphasis on those can be used to distinguish species from each other. Character information is compiled in the scientific literature as text, tables, and images. The information is presented according to conventions that vary among taxonomic domains; such conventions facilitate comparison among similar species, even when descriptions are published by different authors.

There is considerable uncertainty within the taxonomic community as to how to re-use images that were included in taxonomic publications, especially in regard to whether copyright applies. This article deals with the principles and application of copyright law, database protection, and protection against unfair competition, as applied to images. We conclude that copyright does not apply to most images in taxonomic literature because they are presented in a standardized way and lack the individuality that is required to qualify as ‘copyrightable works’. There are exceptions, such as wildlife photographs, drawings and artwork produced in a distinctive individual form and intended for other than comparative purposes (such as visual art). Further exceptions may apply to collections of images that qualify as a database in the sense of European database protection law. In a few European countries, there is legal protection for photographs that do not qualify as works in the usual sense of copyright. It follows that most images found in taxonomic literature can be re-used for research or many other purposes without seeking permission, regardless of any copyright declaration. In observance of ethical and scholarly standards, re-users are expected to cite the author and original source of any image that they use.
Le côté « obscur » de la science
Authors: Anichini Giulia
Published: March 2017

Une réflexion riche et diversifiée s’instaure depuis quelques années autour de l’ignorance et de sa production dans les sciences. Les sociologues et les anthropologues ont proposé différentes définitions pour délimiter ce vaste champ intellectuel et pour démontrer comment les acteurs jouent activement avec l’incertitude. Cet article se concentre sur un type particulier d’ignorance, à savoir la dissimulation intentionnelle de données, dans le domaine des neurosciences. Les chercheurs observés occultent certains dysfonctionnements techniques et expriment les difficultés à rendre publiques des données discordantes ou contradictoires. La disparition de certaines découvertes considérées comme « non publiables », démontre d’un côté les stratégies que les chercheurs doivent mettre en place pour assurer leur position et, de l’autre côté, l’écart de celles-ci vis-à-vis des idéaux scientifiques de transparence et de mutualisation des connaissances.
An examination of neck angle in obedience dogs whilst completing competition heelwork
Authors: Harris H. , Birch E. , Boyd J.
Published: March 2017

Dog obedience competition is an understudied area of canine kinematic research. Consequently, little is understood about the potential welfare considerations of competing in such disciplines. This study examined correlations between the dog’s head position and judges’ scores during an obedience heelwork test. Dartfish was used to analyse head and neck positions of obedience dogs whilst completing a heelwork test in competition. The study found no correlation between judges scores and the apparent head and neck angle of the dogs during heelwork. There was also no correlation between head and neck position of the dogs and the time taken to complete the heelwork test. Study findings demonstrate that more acute hyperextension of the dog’s neck during heelwork is not being selected for by judges. Thus, more research is needed to examine where the desire for apparent hyperextension is originating from and indeed the welfare implications of such positions.
Riders’ perception of symmetrical pressure on their ischial tuberosities and rein contact tension whilst sitting on a static object
Authors: Guire R. , Mathie H. , Fisher M. , Fisher D.
Published: March 2017

The horse-rider system is of great interest in understanding the mechanics involved in optimising locomotor function and performance in the ridden horse. Adult riders (n=30) attending a rider conference volunteered to take part in the study. Riders were asked to mimic riding position by positioning themselves symmetrically on their seat bones (ischial tuberosities) sitting on a (Pliance) pressure mat which was placed on a static platform. Riders were also asked to mimic even rein contact using reins with gauges which were attached to a solid wall. When satisfied that they were sitting symmetrically and had an even rein contact, pressure and rein measurements were captured for 5 s and repeated three times. A paired T Test was carried out to determine differences between left and right ischial tuberosities and rein pressures. Using a static model, this study found that the riders had significantly more pressure beneath the left ischial tuberosity (mean ± standard deviation, 3.22±1.43 N/cm2) compared to the right (2.65±1.49 N/cm2) (P=0.04) and no significant differences were observed between left (6.37±2.42 N) and right rein pressure (6.38±2.66 N) (P=0.95). Whilst sitting on a static platform, differences in ischial tuberosity pressure in adult riders were observed despite these riders’ perception that their seat was symmetrically weighted. These differences observed need to be investigated further, dynamically, to determine if there is a similar trend in the ridden situation.
If termite Coptotermes acinaciformis is not an intermediate host, could it be a safe food source for humans?
Authors: King C. , Jones H.I. , Tay A.C.Y.
Published: March 2017

This study explores the possibility of Coptotermes acinaciformis being a commercial product for human consumption. We examined whether C. acinaciformis (Isoptera: Rhinotermitidae) is the intermediate host for the nematodes Abbreviata hastaspicula and Abbreviata antarctica by exposing a total of 13,500 C. acinaciformis to the infected faeces of Varanus gouldii (Squamata: Lacertilia: Varanidae) that contained embryonated eggs of the nematodes A. hastaspicula and A. antarctica. The termites were dissected at 6 intervals (1 day, 2 days, 3 days, 4-23 days, 25-38 days and 48-53 days). Eggs of the nematodes were recovered in the mid-guts of the termites during the first three intervals. There was no evidence that any eggs hatched within the termites. No eggs or larvae were found in the last three intervals. We conclude therefore that C. acinaciformis is not a potential intermediate host for either species of Abbreviata. We recommend C. acinaciformis to be consumed as a food source if C. acinaciformis has no other microorganism that would cause disease to human.
Writing Development in Associate Degree in Nursing-to-Baccalaureate Degree in Nursing Students: Moving Out of the Comfort Zone
Authors: Tyndall Deborah E. , Scott Elaine S.
Published: March 2017

Background:

The nursing profession has made several unsuccessful attempts to differentiate practice between nurses with associate degrees and baccalaureate degrees entering the workforce. Writing competency has been identified as one potential area of differentiation.

Method:

A descriptive, qualitative research design was used to explore Associate Degree in Nursing-to-Baccalaureate Degree in Nursing (ADN-to-BSN) graduates' perceptions of scholarly writing development in their baccalaureate studies. Nine recent graduates from a public college of nursing participated in semistructured interviews.

Results:

Findings from content analysis revealed three phases of awareness in development of a scholarly writer: being a scholarly writer, assessing writing abilities, and connecting to practice.

Conclusion:

The study findings provide insight into competencies that could differentiate practice between ADN and BSN nurses entering the workforce. Although this study aimed to find out how ADN-to-BSN students are shaped as writers, findings suggest that the experience of learning to write may also be shaping students as professional nurses. [
J Nurs Educ.
2017;56(3):182–185.]
A New Matrix Therapy Agent for Faster Corneal Healing and Less Ocular Discomfort Following Epi-off Accelerated Corneal Cross-linking in Progressive Keratoconus
Authors: Gumus Koray , Guerra Marta Gomes , de Melo Marques Sara Homem , Karaküçük Sarper , Barritault Denis
Published: March 2017

PURPOSE:

To investigate the hypothesis that a new matrix therapy agent (ReGeneraTing Agent, [RGTA]) would speed up the corneal reepithelialization, improve stromal healing, and reduce ocular symptoms after epi-off corneal cross-linking (CXL).

METHODS:

Sixty eyes of 60 patients with progressive keratoconus were enrolled in the study. Epi-off accelerated CXL was performed in all patients. Sixty eyes were randomized into two groups according to use of RGTA eye drops prior to contact lens fitting at the end. Identical medical agents were started postoperatively for the two groups. All participants were monitored on 3 consecutive days after the CXL. Ocular pain, burning, stinging, tearing, photophobia, conjunctival hyperemia, and corneal healing status were evaluated.

RESULTS:

By day 2, 25 eyes (83.3%) with RGTA revealed complete healing compared to 4 eyes (13.3%) that revealed complete healing in the control group (
P
< .001). All eyes had complete corneal epithelial defect closure by day 3 in both groups. Ocular pain scores were lower in the RGTA group on days 0, 1, and 2 (all
P
< .05). Burning scores were lower on days 1 and 2; stinging scores on days 2 and 3; tearing scores on days 2 and 3; and photophobia on days 1 and 2 (
P
< .05) in the RGTA group compared to the control group.

CONCLUSIONS:

RGTA ophthalmic solution facilitates corneal healing by reconstructing the extracellular matrix in the wound area, leading to an earlier relief of symptoms for patients.

[
J Refract Surg.
2017;33(3):163–170.]
SMILE Rescue: Delayed Lenticule Removal in a Patient With High Myopia
Authors: Tong Jessica Y. , Cherepanoff Svetlana , Males John J.
Published: March 2017

PURPOSE:

To report successful stromal lenticule extraction, 18 weeks after an aborted small incision lenticule extraction (SMILE) procedure.

METHODS:

Case report.

RESULTS:

SMILE was planned in both eyes in another center to correct high myopia. The right eye was treated uneventfully with immediate lenticule extraction and normal postoperative corneal and topographic appearance. Femtosecond laser treatment was applied to the left eye, but the lenticule could not be removed and the procedure was aborted. Eighteen weeks later, lenticule extraction was attempted again with success. Uncorrected distance visual acuity improved from counting fingers to 20/15, with a successful refractive outcome as planned.

CONCLUSIONS:

Delayed lenticule extraction was successful in achieving the target refractive outcome. To the authors' knowledge, this is the first case of successful delayed lenticule extraction following an incomplete SMILE procedure. Target refractive outcomes were achieved and there were no postoperative complications.

[
J Refract Surg.
2017;33(3):199–202.]
Élections à distance et politique diasporique
Authors: Koochakzadeh Leila
Published: March 2017

La suspension des relations diplomatiques entre le Canada et l’Iran en 2012 a eu de graves conséquences sur la capacité d’action politique de la diaspora iranienne résidant au Canada. Empêchés de prendre part à l’élection présidentielle de 2013 en Iran, marquée par la victoire d’Hassan Rohani, les Iraniens du Canada se sont mobilisés pour faire entendre leurs voix. Dans la communauté iranienne de Toronto, par exemple, sont apparus de profonds clivages idéologiques entre les défenseurs du droit de vote à distance et les opposants plus radicaux au régime en place.
User Experience in Social Human-Robot Interaction
Authors: Alenljung Beatrice , Lindblom Jessica , Andreasson Rebecca , Ziemke Tom
Published: March 2017

Socially interactive robots are expected to have an increasing importance in human society. For social robots to provide long-term added value to people's lives, it is of major importance to stress the need for positive user experience (UX) of such robots. The human-centered view emphasizes various aspects that emerge in the interaction between humans and robots. However, a positive UX does not appear by itself but has to be designed for and evaluated systematically. In this paper, the focus is on the role and relevance of UX in human-robot interaction (HRI) and four trends concerning the role and relevance of UX related to socially interactive robots are identified, and three challenges related to its evaluation are also presented. It is argued that current research efforts and directions are not sufficient in HRI research, and that future research needs to further address interdisciplinary research in order to achieve long-term success of socially interactive robots.
A Comparative Study of Statistical and Rough Computing Models in Predictive Data Analysis
Authors: Acharjya Debi , Anitha A.
Published: March 2017

Information and technology revolution has brought a radical change in the way data are collected. The data collected is of no use unless some useful information is derived from it. Therefore, it is essential to think of some predictive analysis for analyzing data and to get meaningful information. Much research has been carried out in the direction of predictive data analysis starting from statistical techniques to intelligent computing techniques and further to hybridize computing techniques. The prime objective of this paper is to make a comparative analysis between statistical, rough computing, and hybridized techniques. The comparative analysis is carried out over financial bankruptcy data set of Greek industrial bank ETEVA. It is concluded that rough computing techniques provide better accuracy 88.2% as compared to statistical techniques whereas hybridized computing techniques provides still better accuracy 94.1% as compared to rough computing techniques.
Decision Making Under Multi Task Based on Priority for Each Task
Authors: Masaki Takuya , Kurashige Kentarou
Published: March 2017

In recent years, autonomous robots become to be desired to treat multi-task. A robot must decide a concrete action for plural objectives. Major researches try to realize this by weighted rewards. Weighted rewards can represent a human's intention easily. But weight of each task must change dynamically by a change of surrounding situation or of a robot status. Authors consider an independent learning for each task and selection of one concrete action from candidates of each learning. Authors propose a priority function to calculate priority for each task corresponding to surrounding situation or a robot status and propose a system which do decision making by using the priority function. Authors confirmed the usefulness of proposed method with simulation.
A Trust Model for Detecting Device Attacks in Mobile Ad Hoc Ambient Home Network
Authors: Solomon Akinboro , Olajubu Emmanuel , Ogundoyin Ibrahim , Aderounmu Ganiyu
Published: March 2017

This study designed, simulated and evaluated the performance of a conceptual framework for ambient ad hoc home network. This was with a view to detecting malicious nodes and securing the home devices against attacks. The proposed framework, called mobile ambient social trust consists of mobile devices and mobile ad hoc network as communication channel. The trust model for the device attacks is Adaptive Neuro Fuzzy (ANF) that considered global reputation of the direct and indirect communication of home devices and remote devices. The model was simulated using Matlab 7.0. In the simulation, NSL-KDD dataset was used as input packets, the artificial neural network for packet classification and ANF system for the global trust computation. The proposed model was benchmarked with an existing Eigen Trust (ET) model using detection accuracy and convergence time as performance metrics. The simulation results using the above parameters revealed a better performance of the ANF over ET model. The framework will secure the home network against unforeseen network disruption and node misbehavior.
Research and Realization of the Background of Freelancer System
Authors: Nian Tong , Ye Liu , Yuhan Wang , Tao Gao , JiaHui Chen
Published: March 2017

With the popularity of the network and the popularity of computer office, the network to bring a lot of convenience, the traditional work in the network environment has undergone great changes, more and more people to join the ranks of freelancers. So freelancer system came into being, which is based on web pages, no dedicated client can provide services for users, users publish work information and access work becomes more convenient, and they can communicate accordingly, the system administrator to manage the release of job information, then to form a stable and convenient exchange of freelance trading system. It is welcomed by many users for its ease to use which based on web and B / S architecture and developed through the most popular SSH framework. This paper introduces the development of web-based freelance system, including the use of SSH framework, MYSQL database, Eclipse development environment, the feasibility analysis of the project needs analysis as well as the detailed realization of the relevant research on Witkey website.
Research on Underground Personnel Positioning Method Based on PSO-GSA Optimization
Authors: Liu Ye , Li Tianze , Gao Tao , Wang Yuhan , Chen JiaHui
Published: March 2017

In the case of coal mine accidents, in order to ensure timely rescue of the suffering people in a complex environment of underground localization, focusing on Received Signal Strength Indicator (RSSI) in underground personnel positioning accuracy is low and the problem of dynamic tracing parameters changes. Therefore, using an improved gravitational search algorithm (GSA) for the weighted centroid localization that based on RSSI. Utilizing the log distance path loss model gets the distance between the beacon nodes and unknown nodes, and then through the weighted centroid localization algorithm perform the unknown node positioning. Finally, the improved GSA-PSO optimizes the preliminary location results and parameters. Proposed solutions to establish simulation model is verified in MATLAB, and use the on-chip system CC2430 chips experiment platform is established. Experimental results show the proposed method can improve both the positioning accuracy effectively and the adaptive ability of changeful environment.
Management and Marketing Practices of Social Media Firms
Authors: Alshubaily Abdulaziz
Published: March 2017

This paper examines the key variances in application and strategy between different social media management strategies and its effective marketing. Social media firms have shown a great ability to control the stages in their product life cycles. These practices lead to managers in these firms overachieving on their respective KPIs and garnering industry attention. An analysis of social media management firms practice shows that high participatory decisions and intellectual and manual skills contributed to these organizations' successes. Other factors like introducing the ‘Like' button and various innovations are observed to have improved consumers' attitudes towards the social media brand. Customer engagement and content enrichment are proven to be driving forces in how online consumers perceive the social media brand. Consumers are demonstrated to be the main means of continuous sustainability and growth.
Deception Detection by Hybrid-Pair Wireless fNIRS System
Authors: Di Hong , Zhang Xin
Published: March 2017

Normal fNIRS setting up was limited by superficial physiological noises when applied into the deception detection. We designed a hybrid-pair wireless fNIRS system to improve the detection. The system takes advantages of short-pair channel to suppress the effect of physiological noises, and wireless module to improve the comfortableness of wearing it. We applied the system into a modified Guilty Knowledge Test. The experiment demonstrated that normal metrics might hint different energy consume during lying, while the regional oxygen saturation rSO2, specific in the system, is sensitive to indicate a lying.
Reasoning with Vague Concepts in Description Logics
Authors: Gasmi Mohamed , Bourahla Mustapha
Published: March 2017

The open world assumption in ontologies representing knowledge may assign deficient (imprecise) meaning for ontology concepts which are language adjectives referring the meaning of classes of objects (individuals). The interpretation of an imprecise (vague) concept is by three subsets of individuals. The first subset of individuals surely belongs to the vague concept, the second subset of individuals surely doesn't belong the vague concept and the third subset is in the borderline. In this paper, the authors will show that is possible to describe ontology vague concepts using well-defined formal languages. The authors will propose also an extension of the Tableau algorithm for reasoning over vague ontologies.
Language Relationship Model for Automatic Generation of Tamil Stories from Hints
Authors: Sridhar Rajeswari , Janani V. , Gowrisankar Rasiga , Monica G.
Published: March 2017

In this paper, we propose to develop a Story Generator from hints using a machine learning approach. During the learning phase, the system is fed with stories which are POS tagged and are converted into a Language Relationship model that is represented as a conceptual graph. During the synthesis phase, the input hints which are delimited using hyphen and converted to a conceptual graph. This graph is matched with the conceptual graph of the corpus and probable words, its sequences along with the relationship are determined using three proposed methods namely Randomized selection, Weighted Selection using Bigram Probability of hint phrases and Weighted Selection using product of Bigram Probability of Conceptual Graph and Bigram Probability of hint phrases. Using the words, sequences and relationships, a sentence assembler algorithm is designed to position the words to form a sentence. To make the story complete and readable, suffixes are added using Tamil grammar to the assembled words and a story is generated which is syntactically and semantically correct.
Synthesis and Characterization of Zirconia-Alumina Ceramics Doped Niobium Oxide
Authors: Johar Banjuraizah , Zul@Azhar Zaimi , Ahmad Zainal Arifin
Published: March 2017

Pure 8 mol% yttria stabilized zirconia (YSZ) and alumina with 1:4 to form ZTA sample and niobium oxide (Nb2O5) as dopant was added to the ZTA system. The samples were sintered at 1650 °C for 2h. The effect of niobium oxide addition as dopant in the ZTA ceramics sample were investigated. It is found that addition of niobium oxide up to 5wt.% had a positive effect on the microstructure and hardness of the ZTA ceramics sample which improve the mechanical properties of the ceramics samples.
Characterizations of Pergau River Clay as Comparison to Mambong and Sayong
Authors: Gani Nurul Amerah , Masri Mohamad Najmi , Abu Bakar Mohamad Bashree , Mohamed Julie Juliewatty , Sulaiman Muhammad Azwadi
Published: March 2017

Clay as pottery’s raw material is a major factor that is affecting the quality and reliability of any pottery product. The clay source areas need to be well determined their geochemical properties in order to control the end properties of clay product. Pergau river is located in the northwest of Kelantan, a state in Malaysia. In this study, elemental and phase analysis of Pergau river clay was carried out. The baked clay products were characterized their density and toughness. X-ray fluorescence showed the clay is rich with Fe and X-ray diffraction showed low concentration of feldspar compared to other known clay source areas, which are Sayong and Mambong. Fewer feldspar content decrease toughness of the pottery product. However, some location showed the comparable result with the Sayong and Mambong. The clay is high in density, low in shrinkage percentage and excellent in mechanical strength compare to other clays collected from Pergau River.
Synthesis and Characterization of Cobalt Doped with Yttria-Stabilized Zirconia Electrolytes
Authors: Johar Banjuraizah , Selvaraj Tinesha , Ahmad Zainal Arifin
Published: March 2017

Effect of Cobalt doped 8YSZ on the ionic conductivity. SOFCs mostly operate at higher temperature. By substitute with dopants, it can reduce the operating temperature and costs. In this experiment, cobalt (1, 2 and 3 mol%) mixed with 8YSZ and sintered at 1550 °C, hold for two hours. Crystal structure, microstructure, sintering behaviour and ionic conductivity at 300 °C were investigated. XRD demonstrates three phases (cubic, monoclinic and tetragonal) were obtained. It was confirmed that small additions of Co-doping promotes densification, grain growth and ionic conductivity compared to pure 8YSZ. YSZZn obtained the highest ionic conductivity1.36 x 10-5 Ω− 1 cm-1 at 300 °C.
Effect of Alteration Ratios of Magnesia and Alumina in Non-Stoichiometric Cordierite Composition Formulations (2.(8-n)MgO.1.(5+n)Al2O3.5SiO2) on Phase Transformation and Crystallization
Authors: Kok Eing Kuan , Johar Banjuraizah , Ho Li Ngee , Yahidah Zabar
Published: March 2017

This study focus on synthesis of α-phase cordierite using different non-stoichiometric cordierite composition through solid state reaction by adjusting the ratio of magnesia, MgO and alumina, Al2O3 in the cordierite composition formulation respectively. The qualitative and quantitative of phase analysis was carried out by X-ray diffractive (XRD) technique and Rietveld structural refinement method. Differential thermal analysis (DTA) was employed to investigate the crystallization behavior of various cordierite formulations as the function of temperature. The scanning electron microscopy (SEM) was also performed. Cordierite with formulation of 2.5MgO.1.8Al2O3.5SiO2 constitutes up to 96.4 wt% when the samples was sintered for 2 hours at the optimal temperature of 1375 °C. The SEM micrograph revealed that the approaching single α-Cordierite sample obtained densified body with well alignment of crystal structure.
Effect of Kenaf Fiber on Morphology and Mechanical Properties of Rigid Polyurethane Foam Composite
Authors: Mohd Soberi Nur Suhaili , Rahman Rozyanty , Zainuddin Firuz
Published: March 2017

In this work polyurethane foam composites were prepared by using kenaf core fiber as filler at different percentages. Polyurethane foam acts as the matrix and was prepared by using palm oil based polyol and isocyanate with ratio of 1:1.1. From the results obtained, composites filled with kenaf core fiber showed lower mechanical properties i.e modulus and compression strength, up to 85% decrease. However the addition of kenaf core fiber decreases the rise time of the polyurethane foam composites. SEM micrograph analysis showed the evidence of irregular cell shape with the presence of kenaf core fiber. The percentage of kenaf core fiber plays crucial role in determining the composites properties.
Flexural and Morphology Properties of Kenaf Fibre Reinforcement Unsaturated Polymer Composite
Authors: Rusli Nurul Wahida , Abu Bakar Mohamad Bashree , Ahmad Thirmizir Mohd Zharif , Sulaiman Muhammad Azwadi , Masri Mohamad Najmi
Published: March 2017

This study focus on the preparation of kenaf fibre reinforced unsaturated polyester composite through the compressing molding technique. The composite characterizations in flexural and morphological properties. Flexural test revealed that the incorporation of multiple layers of kenaf mat into unsaturated polymer composite (UPE) resulted in the increase of flexural strength. Nevertheless, the UPE alone still showed superior flexural strength since the presence of natural filler/fibre in polymer tends to reduce strength properties. The results proved that the UPE revealed the formation of microcracks. Thus, it has been noticed that the fiber fracture, fiber debondings and holes are some of the defects, which are observed due to the application of the load on the specimen.
The Properties of Epoxy/Graphene Conductive Materials Using High Speed Mechanical Stirrer and Bath Sonicator
Authors: Wong Wee Chun , Teh Pei Leng , Osman Azlin Fazlina , Yeoh Cheow Keat
Published: March 2017

In this work, two instruments were used to disperse graphene nanofillers into epoxy matrices, high speed mechanical stirrer and bath sonicator. Two stages experiment were conducted in order to achieve better dispersion of graphene fillers. Flexural test, fracture toughness test and density test were conducted on neat epoxy, 0.2 vol%, 0.4 vol%, 0.6 vol%, 0.8 vol% and 1 vol% graphene incorporated epoxy nanocomposites to observe the loading effect of graphene on the mechanical properties. Flexural results shown improvement in flexural strength graphene incorporated epoxy nanocomposites over neat epoxy. However, these enhancement were observed only up to 0.2 vol% filler loading after which the properties were seen to reduce. Reagglomeration of graphene nanofillers might be the factor that explained this phenomenon. Flexural modulus increased continuously as long as filler concentration increased. Fracture toughness results revealed the fracture toughness of nanocomposites fabricated using bath sonication has shown increasing trend with increasing filler concentration up to 1.0 vol% which not reach to optimum value yet. Nanocomposites fabricated using high speed mechanical stirrer has reached to optimum fracture toughness value at 0.6 vol% loadings. Further addition of graphene nanofillers promoted poor filler dispersion that resulting in decreased fracture toughness of nanocomposites. In addition, density of nanocomposites increased when greater amount of graphene nanofillers added regardless the processing techniques used. These results indicates that both processing techniques were suitable to disperse fillers at low loading only. However, bath sonication method was able to fabricate epoxy/graphene nanocomposites with more homogeneous filler dispersion compared to high speed mechanical mixing.
Mechanical and Water Absorption Properties of Hybrid Kenaf/Glass Fibre Mat Reinforced Unsaturated Polyester Composites
Authors: Rozali Nurshairatun Amira , Abu Bakar Mohamad Bashree , Masri Mohamad Najmi , Sulaiman Muhammad Azwadi , Mohamed Mazlan , Thirmizir Mohd Zharif Ahmad
Published: March 2017

Hybrid kenaf/glass fibre mat reinforced unsaturated polyester (UPE) composites have been prepared by using simple hand lay up moulding technique. The composites with various formulations were characterized by flexural test while water absorption behaviour were investigated with immersion in distilled water at room temperature. The result shows that the hybrid composites with kenaf fibre mat at the innermost layers (glass fibre mat at the outer layers) has given the highest flexural strength and modulus. On the other hand, water absorption study shows that, the hybrid composites with glass fibre mat at the innermost layers (kenaf fibre mat at the outer layers) showed the highest water uptake and thickness swelling. Further investigations on morphological properties were also done to correlate the mechanical properties of the hybrid kenaf/glass fibre mat reinforced UPE composites.
Effect of Calcination Temperature on the Breakdown Strength and Energy Density of CaCu3Ti4O12 Ceramic
Authors: Ab Rahman Mohd Fariz , bin Abu Mohamad Johari , Afindi Zaman Rosyaini , Mohamed Julie Juliewatty , Ain Mohd Fadzil , Mohd Jamil Mohamad Kamarol , Ahmad Zainal Arifin
Published: March 2017

The effect of calcination temperature on the breakdown strength and energy density of CaCu3Ti4O12 (CCTO) ceramics was studied. CCTO ceramics were prepared via solid state reaction method. The raw materials of CCTO were wet mixed for 24 hours and then dried overnight in oven. CCTO mixtures were calcined at three different temperature which is at 900°C, 930°C and 950°C for 12 hours. The calcined powders were compacted at 250 MPa and then were sintered at 1040°C for 10 hours. X-Ray Diffractometer (XRD) analysis showed the formation of CCTO phase and secondary phases of CuO and CaTiO3 for C900 calcined powders but single phase of CCTO was obtained by C930 and C950 calcined powders. Single phase of CCTO also were seen for all sintered samples. Observation on Scanning Electron Microscopy (SEM) micrographs showed large grain size was seen in C900 sintered sample and finer grain size was observed for C930 and C950 sintered samples. C900 sintered sample obtained highest dielectric constant (8617), highest breakdown strength (7.92 kV/cm), highest energy density (2.392 J/cm3).
The Effects of Electron Beam Irradiation on Structural and Optical Properties of TiO2 Particles
Authors: CHE HAK Cik Rohaida , Abidin Siti Salwa Zainal , Saidin Nur Ubaidah , Ahmad Fuzi Siti Aishah , Abdullah Yusof , Meor Sulaiman Meor Yusoff
Published: March 2017

The effect of electron irradiation on structural and optical properties of TiO2 particles has been studied. The crystallinity change was observed at low dose irradiation (4-20 kGy) while phase transformation from pure anatase to mixture of anatase-rutile was inevitable after 100 kGy without significant change in crystallinity. The highest fraction of rutile:anatase ratio was 20:80 obtained at 700 kGy. Morphology study demonstrated that TiO2 particles were spherical, nano-sized and heavily agglomerated with no obvious microstructural changes were observed after irradiation. The direct and indirect band gap (Eg) showed a decrement at low dose but re-increased after irradiation at >100 kGy. The highest Eg was at 700 kGy which can be explained by the changes of TiO2 atomic structure in the presence of mixture anatase:rutile. Therefore, the electron beam irradiation does affect both structural and optical properties of TiO2 nanoparticles. This is expected to affect the photocatalytic activity of TiO2.
Fabrication and Characterization of ZnO Nanofibers by Electrospinning
Authors: Saidin Nur Ubaidah , Choo Thye-Foo , Kok Kuan Ying , Yusof Mohd Reusmaazran , Ng Inn Khuan
Published: March 2017

ZnO nanofibers were successfully prepared by electrospinning a precursor mixture of polyvinylpyrrolidone (PVP)/zinc acetate, followed by calcination treatment of the electrospun composite nanofibers. The effect of applied voltage to the morphology of nanofibers was studied. Both PVP/Zn acetate and ZnO nanofibers were characterized by FESEM and XRD. The results show that the diameter of the nanofibers changed with applied voltage. Results found that the optimum calcined temperature was 500°C to produce continuous ZnO nanofibers.
Study on Conversion Time of Brushite to Monetite via Hydrothermal Method
Authors: Mohd Shafie Erny Raudhoh , Ahmad Zainal Arifin , Ahmad Nurazreena
Published: March 2017

The aim of this research is to identify the optimum conversion time of brushite to monetite. Obtaining optimum conversion time is important to reduce energy consumption and time for cost saving. The presence of distilled water in brushite powder with assistant of temperature and pressure for 45 min under hydrothermal treatment yielded to monetite. The constant temperature at 160 °C with 15, 30, 45 and 60 min for treatment times was used to execute the synthesis of monetite. The treatment times were extended until 2, 6 and 8 h to determine the transformation of phase. The XRD and SEM analysis were used for phase and morphology identifications. The XRD result at 45 min treatment time showed monetite peaks appeared greatly as compared to pure brushite. Whereas, the SEM results showed the existent of polygonal morphology that may referred to the monetite phase. The results obtained in this study conclude that at 45 min treatment time is the optimum conversion time from brushite to monetite
Structural and Surface Morphology of ZnO
Authors: Abidin Siti Salwa Zainal , Meor Sulaiman Meor Yusoff , Paulus Wilfred @ Sylvester , Zahari Ahmad Khairulikram , MOHAMMAD TAKIP Khaironie , Abdullah Yusof
Published: March 2017

The raw material of the extraction process is dust from the electric arc furnace dust (EAFD). EAFD is a byproduct of steel mills which comprises mainly of iron (33-35%) and zinc (22-27%). In this study, ZnO was extracted and purified from EAFD using solvent extraction technique to remove other impurities. Solvent extraction process can easily be adapted into small and large capacities. Characterization of the samples has been done and the results show the production of purity of ZnO samples was quite high. The sample was characterized using equipment such as X-ray fluorescence, XRF, X-ray diffraction, XRD and field emission scanning electron microscope (FESEM).
Polarization Study of Sn-0.7Cu Solder Alloy in 1M Hydrochloric Solution
Authors: Mohd Rasid Zarrul Azwan , OMAR MOHD FIRDAUS , Mohd Nazeri Muhammad Firdaus
Published: March 2017

Corrosion properties of Sn-0.7Cu solder were investigated in 1 M HCl. The scanning rates used were 0.5, 1.0, 1.5 and 2.0 mVs-1 to study the aggressiveness level of HCl electrolyte in various environment. The morphological, elemental and structural of the samples were compared before and after the corrosion. Scan rate 1.0 mVs-1 was chosen as the most optimum scan rate during corrosion analysis. The morphological analysis observed two types of corrosion product which is compacted and loosely-compacted corrosion product after the samples was polarized in 1 M HCl.