The COVID-19 pandemic broke out in early 2020, and the infection rate of variants is considerably higher than that original virus. still spreading globally. In June 2021, two families living on different floors a building Fongshan, Kaohsiung, were simultaneously infected with COVID-19. Investigation results suggested an elevator buildings was most likely place where virus transmission occurred....

The use of touch sensitive displays and touch surfaces is just emerging and they are more and more replacing physical buttons. If a physical button is pressed, audio and tactile feedback confirms the successful operation. The loss of audiotactile feedback in touch sensitive interfaces might create higher input error rates and user dissatisfaction. Therefore the design and evaluation of suitable...

AIMS To determine whether herpes simplex keratitis (HSK) has declined as an indication for penetrating keratoplasty (PKP) at the University of California San Francisco (UCSF) over the past 30 years. METHODS Records of the Hogan Eye Pathology Laboratory were reviewed to determine the incidence of PKP performed for HSK from 1972 through 2001. Archived corneal tissue with the diagnosis of HSK wa...

PURPOSE To determine the long-term fate of donor epithelial cells after limbal allograft transplantation. METHODS Corneal buttons and peripheral blood leukocytes were obtained at the time of penetrating keratoplasty from three patients who had undergone a successful limbal allograft transplantation. Microdissection was used to remove the corneal epithelial cells from the button. The presence ...

BACKGROUND Various studies have compared the accuracy and repeatability of autokeratometers and videokeratoscopes using calibrated convex surfaces. We investigate the agreement between the Topcon KR-3500 autokeratometer and the EyeSys videokeratoscope on human corneas and calibrated convex surfaces. METHODS Measurements were obtained from 30 convex ellipsoidal buttons and 20 right eyes of 20 ...

As a simple model for browsing the World Wide Web, we consider Markov chains with the option of moving “back” to the previous state. We develop an algorithm which uses back buttons to achieve essentially any limiting distribution on the state space. This corresponds to spending the desired total fraction of time at each web page. On finite state spaces, our algorithm always succeeds. On infinit...

In this paper, two different auditory feedback schemes related to graphical buttons are compared to each other and to a visualonly condition. The results show that aesthetically pleasing auditory design is clearly preferred among the users, and can lead to performance benefits over not only a design with no auditory enhancements, but also a design with aesthetically less pleasing auditory enhan...

Bloxorz is an online puzzle game where players move a 1 by 1 by 2 block by tilting it on a subset of the two dimensional grid. Bloxorz features switches that open and close trapdoors. The puzzle is to move the block from its initial position to an upright position on the destination square. We show that the problem of deciding whether a given Bloxorz level is solvable is PSPACE-complete and tha...

Smart devices have been developed and widely used recently, so they have been applied in the industrial field. If mobile technology is applied to the CAD field, users will be able to obtain many advantages such as high mobility and ease of collaboration. To develop a feature-based CAD system that can be made available on smart devices, we suggested a system using multi-touch inputs in 2012; thi...

The role of disgust in childhood phobias has received limited attention in the psychiatric literature. Available studies suggest that attention to the emotion of disgust is optimal for reduction of phobic symptoms given that the interaction between fear and disgust has been found to maintain and even exacerbate phobias. Disgust was targeted via imagery exposures as part of an exposure-based cog...