Good vibrations: Do electrical therapeutic massagers work?

Health, leisure and beauty activities are increasing in popularity, with a particular emphasis on self-help and alternative health practices. One product type that has increased sales with this expansion is the hand-held electric massager. These are products that use vibration as a means of alleviating muscular strains and pains, as well as promoting relaxation. Paradoxically, these products are extremely popular as gifts, but are soon discarded. A multi-disciplinary research team was commissioned by a British manufacturer of electrical consumer products to investigate user attitudes and perceptions of existing massagers, to identify areas of user dissatisfaction. The manufacturer was also concerned about a possible stigma attached to these products because of an association with sex aids. This paper provides an account of the perceptions of both consumers and therapists regarding the use of these products. Identifying the differences between the perceptions of consumers and therapists should help provide a basis for effective integration of user needs, manufacturer requirements, designers’ skills and sound therapeutic practice. The results provide insight to support the development of more effective hand-held massagers

Failure of non-vacuum steam sterilization processes for dental handpieces

Background: Dental handpieces are used in critical and semi-critical operative interventions. Although a number of dental professional bodies recommend that dental handpieces are sterilized between patient use there is a lack of clarity and understanding of the effectiveness of different steam sterilization processes. The internal mechanisms of dental handpieces contain narrow lumens (0·8-2·3mm) which can impede the removal of air and ingress of saturated steam required to achieve sterilization conditions. Aim: To identify the extent of sterilization failure in dental handpieces using a non-vacuum process. Methods: In-vitro and in-vivo investigations were conducted on commonly used UK benchtop steam sterilizers and three different types of dental handpieces. The sterilization process was monitored inside the lumens of dental handpieces using thermometric (TM) methods (dataloggers), chemical indicators (CI) and biological indicators (BI). Findings: All three methods of assessing achievement of sterility within dental handpieces that had been exposed to non-vacuum sterilization conditions demonstrated a significant number of failures (CI=8/3,024(fails/n tests); BI=15/3,024; TM=56/56) compared to vacuum sterilization conditions (CI=2/1,944; BI=0/1,944; TM=0/36). The dental handpiece most likely to fail sterilization in the non-vacuum process was the surgical handpiece. Non-vacuum sterilizers located in general dental practice had a higher rate of sterilization failure (CI=25/1,620; BI=32/1,620; TM=56/56) with no failures in vacuum process. Conclusion: Non-vacuum downward/gravity displacement, type-N steam sterilizers are an unreliable method for sterilization of dental handpieces in general dental practice. The handpiece most likely to fail sterilization is the type most frequently used for surgical interventions

Investigating steam penetration using thermometric methods in dental handpieces with narrow internal lumens during sterilizing processes with non-vacuum or vacuum processes

Background: Dental handpieces are required to be sterilized between patient use. Vacuum steam sterilization processes with fractionated pre/post-vacuum phases or unique cycles for specified medical devices, are required for hollow instruments with internal lumens to assure successful air removal. Entrapped air will compromise achievement of required sterilization conditions. Many countries and professional organisations still advocate non-vacuum sterilization processes for these devices. Aim: To investigate non-vacuum downward/gravity displacement, type-N steam sterilization of dental handpieces, using thermometric methods to measure time to achieve sterilization temperature at different handpiece locations. Methods: Measurements at different positions within air turbines were undertaken with thermocouples and dataloggers. Two examples of commonly used UK benchtop steam sterilizers were tested; a non-vacuum benchtop sterilizer (Little Sister 3, Eschmann, UK) and a vacuum benchtop sterilizer (Lisa, W&H, Austria). Each sterilizer cycle was completed with three handpieces and each cycle in triplicate. Findings: A total of 140 measurements inside dental handpiece lumens were recorded. We demonstrate that the non-vacuum process fails (time range 0-150 seconds) to reliably achieve sterilization temperatures within the time limit specified by the International standard (15 seconds equilibration time). The measurement point at the base of the handpiece failed in all test runs (n=9) to meet the standard. No failures were detected with the vacuum steam sterilization type B process with fractionated pre-vacuum and post-vacuum phases. Conclusion: Non-vacuum downward/gravity displacement, type-N steam sterilization processes are unreliable in achieving sterilization conditions inside dental handpieces and the base of the handpiece is the site most likely to fail

CuRL: Neural curve layers for global image enhancement

We present a novel approach to adjust global image properties such as colour, saturation, and luminance using human-interpretable image enhancement curves, inspired by the Photoshop curves tool. Our method, dubbed neural CURve Layers (CURL), is designed as a multi-colour space neural retouching block trained jointly in three different colour spaces (HSV, CIELab, RGB) guided by a novel multi-colour space loss. The curves are fully differentiable and are trained end-to-end for different computer vision problems including photo enhancement (RGB-to-RGB) and as part of the image signal processing pipeline for image formation (RAW-to-RGB). To demonstrate the effectiveness of CURL we combine this global image transformation block with a pixel-level (local) image multi-scale encoder-decoder backbone network. In an extensive experimental evaluation we show that CURL produces state-of-the-art image quality versus recently proposed deep learning approaches in both objective and perceptual metrics, setting new state-of-the-art performance on multiple public datasets. Our code is publicly available at: https://github.com/sjmoran/CURL

Irish CIOs’ Influence on Technology Innovation and IT-Business Alignment

Technology is the driving force behind many of today’s new products, services, and cost-cutting measures. However, there are gaps in our understanding about how technological innovation is fostered and nurtured in organizations. Part of the answer is to examine how Chief Information Officers (CIOs) exercise influence regarding technological innovation in organizations. This is particularly important since the CIO is the head of technology in organizations, an important source of technological innovation. This article draws on an established executive influence framework to demonstrate how Irish CIOs are able to solidify Information Technology’s (IT’s) contribution to technological innovation via relational means. Most of the CIOs in our study were able to successfully influence other executives to support these innovations which led to better IT-business alignment. However, other CIOs in our study were unsuccessful at influencing executives, which increased the disconnection between the CIO and the executive. Building on this study, we suggest significant practices and behaviors that CIOs can use to successfully influence other executives regarding technological innovations. CIOs must recognize that the relational side of technology alignment should be leveraged for them to successfully manage their contribution to technological innovation

Learning from each other: a manufacturing company collaborates with undergraduate designers during the initial stages of idea generation

The paper describes an exercise where a British manufacturer and a group of industrial design undergraduates worked together in developing initial ideas for ‘blue sky’ concepts. The aim was for undergraduate students to experience direct involvement with a product development team from a manufacturing company. The company, in return, wanted its team to become exposed to initial concept development work which is normally carried external to this team in a separate design department. Students were placed in small design teams and worked together over an intense three-day period. Students from all years were invited to apply for a limited number of places and selected on the basis of enthusiasm for the project rather than expertise and previous academic achievement. The exercise was evaluated by staff observation, student feedback questionnaires and questions to the company staff. Discussion concludes that there are significant advantages to operating concentrated design project work, whether it is team or individually based. Such techniques are highly intensive. Students rise to the challenge, outputs are good in terms of ideas and the positive experience for students. However, it is recommended that such projects should not be conducted too frequently, due to the intensity for both staff and students

Exploring the degree to which individual students share a common perception of specific mood boards: observations relating to teaching, learning and team-based design

Mood boards offer a visual and sensorial channel of communication and inspiration for design research and development, which could be considered to be more logical and empathic within a design context than traditional verbo-centric approaches. This paper explores individuals’ perceptions of images through a sample of mood boards. Gender was chosen as a bipolar attribute and was explored through the specific mood boards. A sample of 62 design students’ responses was captured via a rating scale and key words. The paper reflects on the results obtained and attempts to translate findings into suggestions for other academic staff involved in undergraduate industrial design education

Using focus group methods to improve students’ design project research in schools: Drawing parallels from action research at undergraduate level

Focus groups are increasingly used in industry to elicit data on product users' less tangible needs and associated product symbolism . This can have a considerable impact on a product's subsequent sales and hence is commercially extremely valuable design research. This paper provides an overview of an action research project which placed both a designer and an undergraduate designer, rather than a market researcher in direct contact with users in focus groups. The aim of the work was two-fold: firstly to develop a protocol for a designer to manage focus groups effectively, and secondly to see if this experience could improve the designer’s ability to empathise with a range of users (socio-economic, culture, gender, age or abilities). In reporting the above, the paper also attempts to extrapolate the findings to a schools context; could focus group methods be used be used by students at a school level both as a vehicle for design research and as a learning tool? This paper provides a background to focus group methods, together with their advantages and limitations. The action research project is described and three case studies within it are outlined. The protocols developed are described. The final section of the paper looks at the degree to which this work could be extrapolated to schools level design work both in the United Kingdom and internationally

User-centred design and the focus group: developing the student designer's empathic horizons.

User-centred design is now established as an important aspect of design training. This approach employs the centrality of the user both as resource and focus for design. Developing this the authors put forward the concept of an individual designer’s empathic horizon (McDonagh-Philp and Denton, 1999). This can be defined as the individual’s range of understanding and empathy for user experiences in different contexts. It is suggested that the further a designer can develop their empathic horizon the better they are able to design for given ranges of users. This paper firstly examines the concepts of user-centred design and individual designer’s empathic horizon. The paper makes proposals as to how user-centred design approaches could be employed at a school-level to develop the individual student designer’s empathic horizon. Attention will be paid to the concept of development and progression

An evaluation of the distribution of metal ions in otherwise uniform titania sol-gel layers designed for optical sensing using laser ablation inductive coupled plasma mass spectroscopy

Free-base porphyrins are bound to titania sol-gel layers deposited on glass slides. The porphyrin-containing titania layers show the UV-VIS spectra of the porphyrin and are found to be uniformly and evenly distributed. By addition of a metal salt to the titania layer, it was possible to metallate the free-base porphyrin within and change the UV-VIS absorbance of the porphyrin. The metalloporphyrins based on Cu and Zn ions could be detected by laser ablation inductive coupled plasma mass spectroscopy (LA-ICP-MS). Aggregation of metals is observed indicating that metal ions are also attaching directly to the titania. In samples where already metalized porphyrins are used little or no aggregation is observed, indicating that the titania sol gel is non-uniform in its affinity for metal ions. © 2012 SPIE