The Role of Tour Guides as Brokers in Tourism Industry (The Importance of Communication Capital in Shaping Structural Holes in Communication Network)

Tour guides as intermediaries or brokers in tourism industry, play important role in controlling the flow of information, forming structural holes in communication network. Thus a guide has to maximize his capital potentials, either those he possesses or those that he does not, especially communication capital. This paper is aimed at understanding the effect of utilizing the communication capital in order to form structural holes in communication network. This causal relationship will be developed into a new model of analysis of various concepts of capitals as elements forming communication capital, as well as its influence to structural hole theory. The data are obtained by conducting literature review of communication network analysis frameworks. It is concluded in a path analysis model which put financial capital, human capital, social capital, and communication capital as exogenous variables affecting the structural hole as endogenous variable. This model will help tour guides to manage information of tourism products in structural holes. However, this model should be examined deeper in the next researches.     Keywords: intermediaries, tourism industry, structural hole, communication network, communication capita

Using Fear as Persuasive Messages Strategy in Advertising for Road Safety

Fear strategy has been widely used to approach and persuade the target audience in various road safety campaign messages in Indonesia. However, the factor of how the message perceived by each individual gives a challenge to the effectiveness of this strategy. This thesis examined the influence of perceiving of fear strategy messages in Korlantas Polri road safety advertisements, which aim to motivate younger audience using its resonances. The causal relationship between the strategy and how the message perceived was analyzed using the EPPM model (extended parallel process model) using path analysis. The data collection carried out on 85 privatevocational high school (SMK) students using the one-shot case study experiment design. The results showed that the perceived threats from the advertisement impacts and motivates the students to follow the recommendations from advertising messages, as mediated by an efficacy message. This only found in a group of students who have the resonance, while the other group who did not have the resonance can only be influenced by the message of efficacy

Photometric Studies of a WZ Sge-Type Dwarf Nova Candidate, ASAS160048-4846.2

We report on our time-resolved CCD photometry during the 2005 June superoutburst of a WZ Sge-type dwarf nova candidate, ASAS 160048-4846.2. The ordinary superhumps underwent a complex evolution during the superoutburst. The superhump amplitude experienced a regrowth, and had two peaks. The superhump period decreased when the superhump amplitude reached to the first maximum, successively gradually increased until the second maximum of the amplitude, and finally decreased again. Investigating other SU UMa-type dwarf novae which show an increase of the superhump period, we found the same trend of the superhump evolution in superoutbursts of them. We speculate that the superhump regrowth in the amplitude has a close relation to the increase of the superhump period, and all of SU UMa-type dwarf novae with a superhump regrowth follow the same evolution of the ordinary superhumps as that of ASAS 160048-4846.2.Comment: 7 pages, 4 figure

A battery-operated, stabilized, high-energy pulsed electron gun for the production of rare gas excimers

We report on the design of a new type of electron gun to be used for experiments of infrared emission spectroscopy of rare gas excimers. It is based on a filament heated by means of a pack of rechargeable batteries floated atop the high-voltage power supply. The filament current is controlled by a feedback circuit including a superluminescent diode decoupled from the high voltage by means of an optical fiber. Our experiment requires that the charge injection is pulsed and constant and stable in time. This electron gun can deliver several tens of nC per pulse of electrons of energy up to $100\,$keV into the sample cell. This new design eliminates ripples in the emission current and ensures up to 12 hrs of stable performance.Comment: 1o pages, 8 figures, to be submitted to Review of Scientific Instrument

Uniaxial and multiaxial fatigue behaviour of wire arc additively manufactured ER70S-6 low carbon steel components

Wire arc additive manufacturing (WAAM), also known as directed energy deposition (DED) process, is an efficient additive manufacturing technology, offers high potential to rapidly fabricate large-scale parts with complex geometries layer-by-layer. However, the fundamental understanding of the fatigue behaviour of such parts and the material requirements need to be significantly improved at all levels before this unique technology can be implemented for critical applications. This work aims to investigate the fatigue behaviour of WAAM built ER70S-6 steel under uniaxial, torsion and multiaxial loading conditions. Specimens were extracted in two different orientations: vertical and horizontal, to explore if the orientation direction has any effect on the fatigue results. Scanning Electron Microscopy (SEM) was conducted to examine the fracture surface of broken specimens and identify crack initiation regions and fracture mechanisms. The obtained results were compared with the fatigue data available in the literature on common structural steels fabricated using conventional welding and WAAM technique, showing similar fatigue behaviour with wrought S355 specimens. Moreover, the uniaxial data set on ER70S-6 WAAM specimens was evaluated according to the DNV RP-C203 standard for continuous welds, demonstrating advantageous fatigue resistance in the examined material. © 2022 The Author(s

Biophilic design of building façades from an Evolutionary Psychology framework

Built environments that integrate representations of the natural world into façades and interiors benefit occupant psycho-physiological well-being and behavior. However, the biophilic quality of buildings does not de-pend exclusively on “green”, but also upon “organized complexity” in their structure. In this exploratory study we compare quantitative (Visual Atten-tion Software) and qualitative approaches (self-rating scales) in the perception of biophilic design of building façades. Eight façades varying in their degree of biophilic design (High, Medium, Low, No biophilic qualities) were assessed on the Perceived Restorativeness Scale-11, on preference, and on a series of physical aesthetic attributes. The eight façades were scanned with Visual At-tention Software (VAS). These measures show many overlapping points. VAS can be considered a way to operationalize the engagement of attention in the first 3-5 seconds of gaze in exploring building design, and self-ratings assess-ments a measure of to what extent the building is perceived as restorative. Higher perceived restorativeness and preference match a higher degree of bi-ophilic design, which corresponds to a building where vegetation is integrated in an organic structure. Vegetation is not the only biophilic characteristic to be considered in biophilic design and this emerges clearly from self-ratings and VAS. Exploring organized complexity is fundamental for understanding human responses to architecture

Coupled fracture modes under anti-plane loading

The linear elastic analysis of homogeneous, isotropic cracked bodies is a Twentieth Century development. It was recognised that the crack tip stress field is a singularity, but it was not until the introduction of the essentially two dimensional stress intensity factor concept in 1957 that widespread application to practical engineering problems became possible. The existence of three dimensional corner point effects in the vicinity of a corner point where a crack front intersects a free surface was investigated in the late 1970s: it was found that modes II and III cannot exist in isolation. The existence of one of these modes always induces the other. An approximate solution for corner point singularities by Bažant and Estenssoro explained some features of corner point effects but there were various paradoxes and inconsistencies. In an attempt to explain these a study was carried out on the coupled in-plane fracture mode induced by a nominal anti-plane (mode III) loading applied to plates and discs weakened by a straight crack. The results derived from a large bulk of finite element models showed clearly that Bažant and Estenssoro's analysis is incomplete. Some of the results of the study are summarised, together with some recent results for a disc under in-plane shear loading. On the basis of these results, and a mathematical argument, the results suggest that the stress field in the vicinity of a corner point is the sum of two singularities: one due to stress intensity factors and the other due to an as yet undetermined corner point singularity