THE USE OF INFORMATION TECHNOLOGY TOWARD ONLINE TRANSACTION IN MICRO ENTERPRISE USING TECHNOLOGY ACCEPTANCE MODEL(TAM) FRAMEWORK

Technology Acceptance Model (TAM) is an adaptation of TRA introduced by Davis. The purpose of TAM is devoted to explaining the behavior of the users computer (computer usage behavior). The importance of internet and of the TAM antecedents of its website, however, change with experience. Aim of this study was to design and analysis the use of technology toward online transaction using TAM framework.In this research, the design of website of micro enterprises using TAM Framework. The sample is 15 respondents who make transaction online in Semarang.The method analysis use in this research is descriptive analysis. In this research used some technologies like: HTML, this is the basis of website. The result of this study HTML and CSS are used for the rapidly responsive website design. The results of the analysis is known that most of the respondents agreed on the use of online transaction technology using TAM framework. New findings/significance of contributionalmost all respondents agreed to answer the TAM framework applied in website design to facilitate online transactions. Keywords: information, technology, online transaction, TAM framework Technology Acceptance Model (TAM) adalah adaptasi TRA yang diperkenalkan oleh Davis. Tujuan TAM dikhususkan untuk menjelaskan perilaku pengguna komputer. Pentingnya internet dan pendahulunya TAM dari situs webnya, bagaimanapun berubah dengan pengalaman. Tujuan dari penelitian ini adalah untuk merancang dan menganalisa penggunaan teknologi terhadap transaksi online dengan menggunakan kerangka TAM.Dalam penelitian ini, perancangan situs web usaha mikro dibuat dengan menggunakan Kerangka TAM. Sampel yang digunakan adalah 15 responden yang melakukan transaksi online di Semarang. Metode analisis yang digunakan dalam penelitian ini adalah analisis deskriptif. Dalam penelitian ini digunakan beberapa teknologi seperti: HTML sebagai dasar website.Hasil penelitian ini HTML dan CSS digunakan untuk desain website yang cepat responsif. Hasil analisis diketahui bahwa sebagian besar responden sepakat mengenai penggunaan teknologi transaksi online dengan menggunakan kerangka TAM.Temuan baru / signifikansi kontribusi hampir semua responden menjawab setuju menggunakan kerangka TAM yang diterapkan dalam desain website untuk memudahkan transaksi online. Kata kunci: informasi, teknologi, transaksi online, kerangka TA

Validity of the technology acceptance model (TAM) : A sensemaking perspective

This study investigates whether sensemaking activities influence technology acceptance and if the strength of relationship between TAM’s constructs changes over a period of time. This study was a panel-based longitudinal study, whereby data was collected in three stages within a single semester. The setting of the study was at the School of Management, USM. The major findings of the study showed that sensemaking does influence the TAM if activities are undertaken at high and low levels and also sensemaking influences individual constructs of TAM rather than the whole model. This study failed to prove that there is a significant change in the strength of relationship between TAM constructs over a period of time under sensemaking influence, which is that sensemaking activities were found not to exhibit any moderation effect on the TAM constructs. Sensemaking acts as an external variable which influences TAM rather than moderate the strength of the relationship between TAM constructs. This could be because the technology in question was mandatory to be used by the subjects rather than voluntary. Implications for managers are discussed

An extension of Tamari lattices

For any finite path $v$ on the square grid consisting of north and east unit steps, starting at (0,0), we construct a poset Tam$(v)$ that consists of all the paths weakly above $v$ with the same number of north and east steps as $v$. For particular choices of $v$, we recover the traditional Tamari lattice and the $m$-Tamari lattice. Let $\overleftarrow{v}$ be the path obtained from $v$ by reading the unit steps of $v$ in reverse order, replacing the east steps by north steps and vice versa. We show that the poset Tam$(v)$ is isomorphic to the dual of the poset Tam$(\overleftarrow{v})$. We do so by showing bijectively that the poset Tam$(v)$ is isomorphic to the poset based on rotation of full binary trees with the fixed canopy $v$, from which the duality follows easily. This also shows that Tam$(v)$ is a lattice for any path $v$. We also obtain as a corollary of this bijection that the usual Tamari lattice, based on Dyck paths of height $n$, is a partition of the (smaller) lattices Tam$(v)$, where the $v$ are all the paths on the square grid that consist of $n-1$ unit steps. We explain possible connections between the poset Tam$(v)$ and (the combinatorics of) the generalized diagonal coinvariant spaces of the symmetric group.Comment: 18 page

INVESTIGATING THE ROLES OF MECHANORECEPTIVE CHANNELS IN TACTILE APPARENT MOTION PERCEPTION: A VIBROTACTILE STUDY

Tactile apparent motion (TAM) is a perceptual phenomenon in which consecutive presentation of multiple tactile stimuli creates an illusion of motion. Employing a novel tactile display device, the Latero, allowed us to investigate this. The current study focused on the Rapidly Adapting (RA) channel and Slowly Adapting I (SAI) channel on the index finger. The experiment implemented vibrotactile masking stimuli to target the mechanoreceptive channels with the goal of gaining better insight into the involvement of mechanoreceptive channels in the perception of TAM. Masking stimuli were used because previous studies have used them to differentiate between different channels; a certain masking stimulus will impact a mechanoreceptive channel more than others. The experiment began by measuring participants’ threshold for TAM stimuli by varying the stimulus intensity in a two-choice task (left vs right); participants received test trials consisting of TAM stimuli with 25 Hz and 6 Hz testing for the RA and SAI channels, respectively. Next, participants performed a series of test trials with vibrotactile masking stimuli that preceded the TAM stimuli mentioned above. The vibrotactile masking stimulus varied in duration (4 seconds vs 8 seconds) and intensity (two times vs three times the intensity of the TAM stimuli). The results suggest that there was no difference in accuracy when testing for the RA and SAI channels. The results also showed that the introduction of the masking stimuli significantly lowered accuracy. Overall, neither the RA nor the SAI channel may be uniquely involved in TAM perception. However, further improvement on the current design may aid in isolating each channel to help better understand the channel’s role in TAM perception

Understanding older consumers' usage of self-service technologies: test of two models

Self-service technologies play a major role in enabling consumers to perform service delivery themselves. This requires consumers adopting this service delivery process to modify their behaviour, however some consumers may resist change. Evidence of this is particularly strong in older consumers (plus 50 years of age) where their usage of self-service banking technologies (SSBT's) is considerably lower than for younger consumers. This paper specifically explores the beliefs, attitudes, intentions and usage behaviour of SSBT's by older consumers through the comparison of the suitability, fit and explanatory power of two existing models, namely the Theory of Planned Behaviour (TPB) (Ajzen 1991) and Technology Acceptance Model (TAM) (Davis, Bagozzi & Warshaw 1989). Survey methodology approach using a mailed questionnaire to 600 randomly selected respondents resulted in the return of 208 (35%) usable questionnaires. The use of SSBT's varied across the sample with 19% (40) non-users; 19% (40) low users (< 50% use); and 62% (128) moderate to high users (> 60%). The models were tested using AMOS 4.01 (Arbuckle & Wothke 1999), maximum likelihood estimation method. The TAM had a less than acceptable fit resulting in a modified TAM. The Modified TAM when compared with the TPB model had an overall better fit to the data in that all fit statistics were within acceptable limits and similar explanatory power. However, with the addition of two specific belief constructs in the modified TAM, perceived ease of use and perceived usefulness, these constructs provide a richer understanding of the factors that influence attitude (A), behaviour intention (BI) and behaviour (B) of older consumers' usage of SSBT's. Further, the failure of the perceived behavioural control pathway to contribute to the explanation of SSBT behaviour in the TPB model effectively gives the advantage to the Modified TAM. It is primarily for these reasons that the Modified TAM is favoured over the TPB model in this study

Comparison of outflow boundary conditions for subsonic aeroacoustic simulations

Aeroacoustics simulations require much more precise boundary conditions than classical aerodynamics. Two classes of non-reflecting boundary conditions for aeroacoustics are compared in the present work: characteristic analysis based methods and Tam and Dong approach. In characteristic methods, waves are identified and manipulated at the boundaries while Tam and Dong use modified linearized Euler equations in a buffer zone near outlets to mimic a non-reflecting boundary. The principles of both approaches are recalled and recent characteristic methods incorporating the treatment of transverse terms are discussed. Three characteristic techniques (the original NSCBC formulation of Poinsot and Lele and two versions of the modified method of Yoo and Im) are compared to the Tam and Dong method for four typical aeroacoustics problems: vortex convection on a uniform flow, vortex convection on a shear flow, acoustic propagation from a monopole and from a dipole. Results demonstrate that the Tam and Dong method generally provides the best results and is a serious alternative solution to characteristic methods even though its implementation might require more care than usual NSCBC approaches

Secondary Instabilities of Surface Waves on Viscous Fluids in the Faraday Instability

Secondary instabilities of Faraday waves show three regimes: (1) As seen previously, low-viscosity (nu) fluids destabilize first into squares. At higher driving accelerations a, squares show low-frequency modulations corresponding to the motion of phase defects, while theory predicts a stationary transverse amplitude modulation (TAM). (2) High-nu fluids destabilize first to stripes. Stripes then show an oscillatory TAM whose frequency is incommensurate with the driving frequency. At higher a, the TAM undergoes a phase instability. At still higher a, edge dislocations form and fluid droplets are ejected. (3) Intermediate-nu fluids show a complex coexistence of squares and stripes, as well as stationary and oscillatory TAM instabilities of the stripes.Comment: REVTEX, with 3 separate uuencoded figures, to appear in Europhys. Let

Impacts of in vivo and in vitro exposures to tamoxifen: comparative effects on human cells and marine organisms

Tamoxifen (TAM) is a first generation-SERM administered for hormone receptor-positive (HER+) breast cancer in both pre- and post-menopausal patients and may undergo metabolic activation in organisms that share similar receptors and thus face comparable mechanisms of response. The present study aimed to assess whether environmental trace concentrations of TAM are bioavailable to the filter feeder M. galloprovincialis (100 ng L-1) and to the deposit feeder N. diversicolor (0.5, 10, 25 and 100 ng L-1) after 14 days of exposure. Behavioural impairment (burrowing kinetic), neurotoxicity (AChE activity), endocrine disruption by alkali-labile phosphate (ALP) content, oxidative stress (SOD, CAT, GPXs activities), biotransformation (GST activity), oxidative damage (LPO) and genotoxicity (DNA damage) were assessed. Moreover, this study also pertained to compare TAM cytotoxicity effects to mussels and targeted human (i.e. immortalized retinal pigment epithelium - RPE; and human transformed endothelial cells - HeLa) cell lines, in a range of concentrations from 0.5 ng L-1 to 50 μg L-1. In polychaetes N. diversicolor, TAM exerted remarkable oxidative stress and damage at the lowest concentration (0.5 ng L-1), whereas significant genotoxicity was reported at the highest exposure level (100 ng L-1). In mussels M. galloprovincialis, 100 ng L-1 TAM caused endocrine disruption in males, neurotoxicity, and an induction in GST activity and LPO byproducts in gills, corroborating in genotoxicity over the exposure days. Although cytotoxicity assays conducted with mussel haemocytes following in vivo exposure was not effective, in vitro exposure showed to be a feasible alternative, with comparable sensitivity to human cell line (HeLa).info:eu-repo/semantics/publishedVersio