Technology in Teacher Education : Using Multimedia to Enhance the Design and Make Processes.

This paper reports on the use of a multimedia journal to enhance a subject in technology education. The subject was delivered to preservice teachers studying to be primary school teachers. The multimedia journal was used to assist in the delivery of the subject and to record the progress made by students. It is argued that multimedia used in this manner complements and extends upon the teaching program and becomes an integral part of the learning proces

Electronic Mail and New Methods for Measuring Media Richness

Media richness has been defined in the literature in terms of four objective characteristics. A rich medium is one that allows for communication of multiple cues through multiple channels, language variety, immediate feedback and a high degree of personalness (Lengel, 1983; Daft and Lengel, 1986). When this concept is applied to traditional forms of communication, face-to-face interaction is considered to be the richest, followed by the telephone, a letter, a memo and a flyer/bulletin (Lengel, 1983;Trevino, Lengel,Bodensteiner, Gerloff and Muir, 1990). With the acceptance and general use in recent years of electronic forms of communication, such as electronic mail, it is of interest to examine where along this continuum of media richness the new electronic forms lie. This is important to ascertain because the so-called richness imperative suggests that high-rich media are necessary for the effective handling of equivocal situations, while low-rich media are sufficient for situations that are low inequivocality (Trevino et al., 1990). Thus, it is useful to know which media are rich and which are not in determining how to apply the above rule. Electronic mail (E-mail) is a commonly used electronic communication medium. It can be classified as a relatively low-rich, or lean, medium according to the four characteristics of richness. In using E-mail, one is not able to communicate through multiple cues or multiple channels, use of much language variety is limited, immediate feedback may or may not be possible depending on the availability and inclination of the communication partner, and based on the required use of a computer and the written word, it is not generally viewed as a personal mode of communication. However, according to some recent studies in the literature, there is some evidence that E-mail is perceived by its users to be a richer communication medium than its objective characteristics would indicate (Fulk, Schmitz and Ryu, 1995; Kydd and Ferry, 1992; Markus, 1994; Lee, 1994). This suggeststhat there may be subjective factors involved in determining the richness of a medium in addition to the objective characteristics. Thus, we need a way of capturing these subjective factors that will allow us to understand why E-mail (and perhaps other communication media) is perceived to be richer than that dictated by the definition of richness. The purpose of this research is two-fold. First, we suggest that the way in which richness has been measured in the past is not sufficient to allow us to truly understand why E-mail and other electronic media are viewed as either rich or lean. Second, we develop and test an instrument for measuring media richness based on the original definition and description. Lengel (1983) originally used a 100-point scale to measure the richness of traditional communication media such as the telephone, a formal memo and a letter. Trevino et al. (1990) used the same scale to measure the richness of electronic mail and found that it was rated at approximately 75. Unfortunately, this tells us nothing about why respondents evaluated E-mail richness as they did. Is it personalness, feedback, or some other dimension? This research attempts to develop a more robust instrument for measuring richness directly by measuring the four characteristics specified in the definition. There is a precedent for this in Fulk et al. (1995), who took the first step in measuring richness in this way by asking one question per characteristic. We propose a fuller instrument that includes several items percharacteristic which can then be folded into a composite measure of media richness

ANALISIS UJI TARIK DAN UJI BENDING DENGAN KARAKTERISTIK HONEYCOMB POLYLACTIC ACID (PLA) TERHADAP VARIASI SUHU RUANGAN

Three Dimension (3D) Printing is a technology for printing a material by producing a three-dimensional object using the Additive Manufacturing technique, with the layer manufacturing method. In this study, printing three-dimensional objects using materials made from polylactic acid. Polylactic acid is a type of plastic filament material that is biodegradable, more easily decomposed than other plastic filaments, so it is environmentally friendly. This research discusses about the printing and testing of materials made from polylactic acid with room temperature variations of 18⁰C, 25⁰C, 30⁰C. Tests were carried out to determine the effect of room temperature on the honeycomb structure by conducting a tensile test and a bending test. Printouts at room temperature variations of 18⁰C have a higher average stress value in the bending test and have a higher average Young's modulus value in the tensile test compared to 25⁰C and 30⁰C. Based on the results of the bending test at 18⁰C it has an average stress value of 0.000126 MPa, for the tensile test at 18⁰C it has an average Young's modulus value of 1.13827MPa

A coordinated phosphorylation cascade initiated by MSK1 directs RAR alpha recruitment to target gene promoters

The nuclear retinoic acid (RA) receptor alpha (RARα) is a transcriptional transregulator that controls the expression of specific gene subsets through binding at response elements and dynamic interactions with coregulators, which are coordinated by the ligand. Here, we highlighted a novel paradigm in which the transcription of RARα-target genes is controlled by phosphorylation cascades initiated by the rapid RA activation of the p38MAPK/MSK1 pathway. We demonstrate that MSK1 phosphorylates RARα at S369 located in the Ligand Binding Domain, allowing the binding of TFIIH and thereby phosphorylation of the N-terminal domain at S77 by cdk7/cyclin H. MSK1 also phosphorylates Histone H3 at S10. Finally, the phosphorylation cascade initiated by MSK1 is required for the recruitment of RARα/TFIIH complexes to response elements and subsequently for RARα target genes activation. Cancer cells characterized by a deregulated p38MAPK/MSK1 pathway, do not respond to RA, outlining the essential contribution of the RA-triggered phosphorylation cascade in RA signaling

THE INFLUENCE OF SHARIA HOTEL INDICATORS TOWARDS ITS COMPETITIVE ADVANTAGE AND GUEST INTENTION TO STAY: AN APPRAISAL

Indonesia, the country with the largest Muslim population in the world, showed an increase in the development of sharia hotels that apply sharia laws and regulations as their operating system. This study aims to explore both hotel executives and consumers� perceptions of sharia hotels and the impact on creating the hotel�s competitive advantage, which will affect guest intention to stay. In- depth interviews were completed with hotel executives of sharia and non-sharia hotels as one group and with sharia and non-sharia hotels guests as the other group. In-depth interviews and thick narratives nuance the research processes and inductive data reduction. The interview data were processed using thematic analysis. Two major themes were revealed from the interviews: governments are relatively slow in certifying standard regulations for sharia hotels and there is still a discrepancy concerning the perceptions among hotel executives and customers about what constitutes a sharia hotel. A clear and comprehensive definition of the sharia concept will make public perceptions, both in terms of hotel executives and hotel consumers, stand on the same ground. A conceptual model has been proposed based on the study findings, expected to enrich the body of literature regarding sharia hotel indicators that need to be taken into account by management to build its competitive advantages. Further research employing a quantitative approach is suggested to validate the underlying factors in the model that influence consumers intentions to stay at sharia hotels

Target value design: using collaboration and a lean approach to reduce construction cost

Target Costing is an effective management technique that has been used in manufacturing for decades to achieve cost predictability during new products development. Adoption of this technique promises benefits for the construction industry as it struggles to raise the number of successful outcomes and certainty of project delivery in terms of cost, quality and time. Target Value Design is a management approach that takes the best features of Target Costing and adapts them to the peculiarities of construction. In this paper the concept of Target Value Design is introduced based on the results of action research carried out on 12 construction projects in the USA. It has been shown that systemic application of Target Value Design leads to significant improvement of project performance – the final cost of projects was on average 15% less than market cost. The construction industry already has approaches that have similarities with elements of the Target Value Design process or uses the same terminology, e.g. Partnering and Target Cost Contracts, Cost planning, etc. Following an exploration of the similarities and differences Target Value Design is positioned as a form of Target Costing for construction that offers a more reliable route to successful projects outcomes

CETOBaC – Centre d’études turques, ottomanes, balkaniques et centrasiatiques

Marc Aymes, chargé de recherche au CNRSMaroussia Ferry, doctorante à l’EHESS/INEDHayri Göksin Özkoray, doctorant à l’EPHE Séminaire interdisciplinaire d’études turques (SIDET) L’innervation des sciences sociales par les « aires culturelles », et réciproquement, demeure problématique. Elle est, en tant que principe de formation, la préoccupation essentielle de ce séminaire, qui a pour objectif d’en favoriser la mise en œuvre, à l’échelle de ce qu’il est convenu d’appeler les « études turques »..

CETOBaC – Centre d’études turques, ottomanes, balkaniques et centrasiatiques

Marc Aymes, chargé de recherche au CNRSMaroussia Ferry, doctorante à l’EHESS/INEDHayri Göksin Özkoray, doctorant à l’EPHE Séminaire interdisciplinaire d’études turques (SIDET) L’innervation des sciences sociales par les « aires culturelles », et réciproquement, demeure problématique. Elle est, en tant que principe de formation, la préoccupation essentielle de ce séminaire, qui a pour objectif d’en favoriser la mise en œuvre, à l’échelle de ce qu’il est convenu d’appeler les « études turques »..

α−α Cross-Links Increase Fibrin Fiber Elasticity and Stiffness

Fibrin fibers, which are ∼100 nm in diameter, are the major structural component of a blood clot. The mechanical properties of single fibrin fibers determine the behavior of a blood clot and, thus, have a critical influence on heart attacks, strokes, and embolisms. Cross-linking is thought to fortify blood clots; though, the role of α–α cross-links in fibrin fiber assembly and their effect on the mechanical properties of single fibrin fibers are poorly understood. To address this knowledge gap, we used a combined fluorescence and atomic force microscope technique to determine the stiffness (modulus), extensibility, and elasticity of individual, uncross-linked, exclusively α–α cross-linked (γQ398N/Q399N/K406R fibrinogen variant), and completely cross-linked fibrin fibers. Exclusive α–α cross-linking results in 2.5× stiffer and 1.5× more elastic fibers, whereas full cross-linking results in 3.75× stiffer, 1.2× more elastic, but 1.2× less extensible fibers, as compared to uncross-linked fibers. On the basis of these results and data from the literature, we propose a model in which the α-C region plays a significant role in inter- and intralinking of fibrin molecules and protofibrils, endowing fibrin fibers with increased stiffness and elasticity

Keep an ear out for Francisella tularensis: otomastoiditis Cases after Canyoneering

We report here three unusual cases of otomastoiditis due to Francisella tularensis, complicated by cervical abscesses and persistent hearing loss, plus facial paralysis for one patient. Intriguingly, the three patients had practiced canyoneering independently in the same French river, between 2009 and 2014, several days before clinical symptoms onset. The results point out that fresh water exposure may be a potential contamination route for tularemia. Besides, due to the frequent complications and sequelae, we believe that F. tularensis should be considered as a possible etiology in case of otitis media, failure of the conventional antibiotic treatment, and suspicious exposure of the bacteria