Fear of Falling and Older Adult Peer Production of Audio-Visual Discussion Material     

Cathy Bailey  Karen King  Ben Dromey  Ciaran Wynne 《Educational gerontology》2013,39(9):781-797

A growing body of work suggests that negative stereotypes of, and associations between, falling, fear of falling, and ageing, may mean that older adults reject falls information and advice. Against a widely accepted backdrop of demographic ageing in Europe and that alleviating the impacts of falls and fear of falling are pressing health care matters, this is a critical issue. This paper describes a recent peer learning and sharing strategy that set out to iteratively produce a series of short audio visual discussion programs on falling and fear of falling. Key outcomes included older adults appreciating peer group sharing as an acceptable way of opening up the silence surrounding falls incidences, enjoying participating in a problem solving strategy, and emphasizing that falls prevention is not just their responsibility. Outcomes suggest that peer learning and sharing are valuable falls and fear of falling support strategies.  相似文献   

MICROCOMPUTERS AND THE ELDERLY: NEW DIRECTIONS FOR SELF‐SUFFICIENCY AND LIFE‐LONG LEARNING     

James L. Hoot  Bert Hayslip Jr. 《Educational gerontology》2013,39(5-6):493-499

Since the development of the microcomputer in the early 70's, computer technology has expanded into the eductional lives of increasing numbers of persons. Computers, once seen only in wealthy industries, are now nearly as common as pencils and paper in our nations' schools. In addition to the rapid development of computer training programs at the post secondary level, the proliferation of such programs is now manifest at the secondary, elementary, and even preschool levels. While computers appear to offer a great deal of educational potential for our youth, their benefits have not as yet been explored among older adults.  相似文献   

Usability Testing of BusinessThinkingTM e-Learning CD-ROMs with Older Adults     

Marian Stoltz-Loike  Roger W. Morrell  James D. Loike 《Educational gerontology》2013,39(10):765-786

BusinessThinking^TM is a computer-based e-learning package designed to teach technology skills and business information to adults, ages 50–69, who remain in the workforce. This article outlines results from usability testing for the material on using technology applications (Microsoft Word, PowerPoint, Excel and the Internet), and career development (career management and preretirement planning. In Study 1, a usability test was conducted to ensure that the material was user-friendly. In Studies 2 and 3, the PowerPoint and career development materials were redesigned according to the findings from Study 1. Results indicated that the redesign was effective in increasing navigation of the material.  相似文献   

A MODULAR COURSE APPROACH TO IN‐SERVICE AND PRE‐SERVICE TRAINING IN GERONTOLOGY     

William F. Price  James M. Bellis 《Educational gerontology》2013,39(1):9-24

In order to meet both in‐service and pre‐service training needs in gerontology, North Country Community College has developed an innovative one‐year certificate program. Under the assumption that persons working with the aged in a rural area must have a diverse group of skills to draw upon, the gerontology certificate stresses course work in: communication skills, culture variability, gerontology knowledge, management skills, and service skills. The curriculum approach taken is that of competency based education, with most of the skills courses put into a modular course format. After the first year of the certificate, 53% (N = 65) of the students in the certificate courses are adults or community professionals turning to this community college program to upgrade skills or acquire new ones. This certificate is beginning to meet the training needs in a rural area that were only previously addressed by occasional workshops for the human service practitioner.  相似文献   

Empirical observations on the session timeout threshold     

Toan Huynh  James Miller   《Information processing & management》2009,45(5):513-528

The World Wide Web is a popular “tool” for companies. It can be used as a method of communication between companies and their customers; it also allows organizations to setup virtual storefronts that can be accessed by customers from all over the world. The ability to understand customers’ behavior is extremely important as companies strive to increase the usability and profitability of their web service. The concept of a session is a popular unit of measurement used to analyze recorded information. However, this concept is currently rather abstract and lacks definition. How we measure a session is a fundamental question for web services utilizing this concept. Currently, this question has no real answer. This paper presents a session timeout threshold model based on empirical observations as an initial answer to this question. The model seeks to provide accurate session data with respect to individual web services.  相似文献   

A social status perspective of network utility over electronic channels in academic communities     

Karma Sherif  Jaeki Song  James Wilcox 《International Journal of Information Management》2009

Early research on the social implications of e-mail has promoted the role of electronic communication channels in fostering social equality and reducing gaps between the social classes. Follow-up studies, however, suggest that people continue to rely on social cues in electronic communication as a way of dealing with uncertainties and reducing feelings of discomfort associated with unfamiliar contexts. Based on a review of the Social Cognitive Theory, social status and electronic communication literatures, along with the results of a previous qualitative study, we propose a formal model that indicates how self-perceptions of social status are related to the use of e-mail and the acquisition of social resources over electronic channels. The model is tested using data collected from 206 faculty members in a major U.S. university. The empirical results support the proposed model implying that self-perceptions of social status influence social assertiveness, which in turn reinforces the use of e-mail to seek help and acquire social resources from others. The use of e-mail for the acquisition of social resources is associated with a socially diverse network whose contacts are perceived to acquire valuable information and to extend instrumental support for career development. Implications are drawn for both theory and practice.  相似文献   

Single nanopore transport of synthetic and biological polyelectrolytes in three-dimensional hybrid microfluidic�Mnanofluidic devices     

Travis L. King  Enid N. Gatimu    Paul W. Bohn 《Biomicrofluidics》2009,3(1)

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Ultrafast microfluidics using surface acoustic waves   总被引：2，自引：0，他引：2  

Leslie Y. Yeo  James R. Friend 《Biomicrofluidics》2009,3(1)

We demonstrate that surface acoustic waves (SAWs), nanometer amplitude Rayleigh waves driven at megahertz order frequencies propagating on the surface of a piezoelectric substrate, offer a powerful method for driving a host of extremely fast microfluidic actuation and micro∕bioparticle manipulation schemes. We show that sessile drops can be translated rapidly on planar substrates or fluid can be pumped through microchannels at 1–10 cm∕s velocities, which are typically one to two orders quicker than that afforded by current microfluidic technologies. Through symmetry-breaking, azimuthal recirculation can be induced within the drop to drive strong inertial microcentrifugation for micromixing and particle concentration or separation. Similar micromixing strategies can be induced in the same microchannel in which fluid is pumped with the SAW by merely changing the SAW frequency to rapidly switch the uniform through-flow into a chaotic oscillatory flow by exploiting superpositioning of the irradiated sound waves from the sidewalls of the microchannel. If the flow is sufficiently quiescent, the nodes of the transverse standing wave that arises across the microchannel also allow for particle aggregation, and hence, sorting on nodal lines. In addition, the SAW also facilitates other microfluidic capabilities. For example, capillary waves excited at the free surface of a sessile drop by the SAW underneath it can be exploited for micro∕nanoparticle collection and sorting at nodal points or lines at low powers. At higher powers, the large accelerations off the substrate surface as the SAW propagates across drives rapid destabilization of the drop free surface giving rise to inertial liquid jets that persist over 1–2 cm in length or atomization of the entire drop to produce 1–10 μm monodispersed aerosol droplets, which can be exploited for ink-jet printing, mass spectrometry interfacing, or pulmonary drug delivery. The atomization of polymer∕protein solutions can also be used for the rapid synthesis of 150–200 nm polymer∕protein particles or biodegradable polymeric shells in which proteins, peptides, and other therapeutic molecules are encapsulated within for controlled release drug delivery. The atomization of thin films behind a translating drop containing polymer solutions also gives rise to long-range spatial ordering of regular polymer spots whose size and spacing are dependent on the SAW frequency, thus offering a simple and powerful method for polymer patterning without requiring surface treatment or physical∕chemical templating.  相似文献   

Rapid production of protein-loaded biodegradable microparticles using surface acoustic waves     

Mar Alvarez  Leslie Y. Yeo  James R. Friend    Milan Jamriska 《Biomicrofluidics》2009,3(1)

We present a straightforward and rapid surface acoustic wave (SAW) atomization-based technique for encapsulating proteins into 10 μm order particles composed of a biodegradable polymeric excipient, using bovine serum albumin (BSA) as an exemplar. Scans obtained from confocal microscopy provide qualitative proof of encapsulation and show the fluorescent conjugated protein to be distributed in a relatively uniform manner within the polymer shell. An ELISA assay of the collected particles demonstrates that the BSA survives the atomization, particle formation, and collection process with a yield of approximately 55%. The SAW atomization universally gave particles with a textured morphology, and increasing the frequency and polymer concentration generally gave smaller particles (to 3 μm average) with reduced porosity.  相似文献   

Evaluation of immunohistochemistry and enzyme linked immunosorbent assay for HER-2/neu expression in breast carcinoma     

Rani James  K. Thriveni  Girija Ramaswamy  Lakshmi Krishnamoorthy  Geetashree Mukherjee  P. P. Vijayalaxmi Deshmane  P. P. Bapsy 《Indian journal of clinical biochemistry : IJCB》2008,23(4):345-351

HER-2 is overexpressed in approximately 20–30% of invasive Breast Cancer. ECD of the HER-2 protein is frequently cleaved and released into the circulation, where it can be detected by ELISA in up to 45% of patients with metastatic breast cancer. The objective of our study was to compare the current methods for the detection of HER-2 protein. Tissue HER-2 levels were studied in 100 breast cancer patients by IHC and compared with serum HER-2 levels by ELISA. IHC frequency was 29%. Serum HER-2 ECD was positive in 42% of patients. A statistically significant correlation was observed. HER-2 detected by IHC correlates significantly with serum HER-2 levels detected by ELISA. Thus, ELISA is a reliable and economical tool to assess the HER-2 status in tumors, when breast tissue sample is not available.  相似文献