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11.
Dharani Perera R. T. Jim Eales Kathy Blashki 《Universal Access in the Information Society》2009,8(2):77-88
For people with upper limb disabilities visual art is an important activity that allows for expression of individuality and
independence. They show remarkable endurance, patience and determination to adapt their remaining capabilities to create visual
art. There are significant advantages of digital technologies in assisting artists with upper limb disabilities. Paralinguistic
voice recognition technologies have proven to be a particularly promising mode of interaction. Despite these benefits, technological
support for people with upper limb disabilities to create visual art is scarce. This paper reports on a number of case studies
of several artists with upper limb disabilities. These case studies illustrate the struggles they face to be creative and
also show the significant advantages of digital technologies in assisting such artists. An investigation into people’s ability
to use the volume of their voice to control cursor movement to create drawings on the screen is also reported. With motivation,
training and practise, use of volume to control drawing tasks shows great promise. It is believed that paralinguistic voice
has wider implications beyond assisting artists with upper limb disabilities, such as: an alternative mode of interaction
for disabled people to perform tasks other than creating visual art, alternative mode of interaction for hands busy environments
and as a voice training system for people with speech impairments. 相似文献
12.
In the reinforcement learning system, the agent obtains a positive reward, such as 1, when it achieves its goal. Positive
rewards are propagated around the goal area, and the agent gradually succeeds in reaching its goal. If you want to avoid certain
situations, such as dangerous places or poison, you might want to give a negative reward to the agent. However, in conventional
Q-learning, negative rewards are not propagated in more than one state. In this article, we propose a new way to propagate
negative rewards. This is a very simple and efficient technique for Q-learning. Finally, we show the results of computer simulations
and the effectiveness of the proposed method. 相似文献
13.
Previous research has identified user concerns about biometric authentication technology, but most of this research has been
conducted in European contexts. There is a lack of research that has investigated attitudes towards biometric technology in
other cultures. To address this issue, data from India, South Africa and the United Kingdom were collected and compared. Cross-cultural
attitudinal differences were seen, with Indian respondents viewing biometrics most positively while respondents from the United
Kingdom were the least likely to have a positive opinion about biometrics. Multiple barriers to the acceptance of biometric
technology were identified with data security and health and safety fears having the greatest overall impact on respondents’
attitudes towards biometrics. The results of this investigation are discussed with reference to Hofstede’s cultural dimensions
and theories of technology acceptance. It is argued that contextual issues specific to each country provide a better explanation
of the results than existing theories based on Hofstede’s model. We conclude that cultural differences have an impact on the
way biometric systems will be used and argue that these factors should be taken into account during the design and implementation
of biometric systems. 相似文献
14.
Gary Allenby Kathy Dodgson Paul Harper Adel Kassam Michael Leam Ian Dale Elaine Sullivan 《Journal of The Association for Laboratory Automation》2001,6(5):48
Advances in the field of automation have meant hitherto complex manual cell-based assays can now be automated. These improvements have brought significant enhancements in throughput, data fidelity and consistency, and allowed a reallocation of constrained resources.Building upon these improvements, we have linked our automated cell-based screening system, Assay Platform™, to Activity Base (IDBS), a software package designed to automate the analysis of HTS data. Customisation of this package has resulted in software that can identify ‘active’ compounds and re-pick them ‘on the fly’ from the original compound plates for triplicate re-testing without operator intervention.Based on an operator initially defining ‘normal’ parameters for assay activity in Activity Base, combined with an automated quality control software module that checks data fidelity, wells containing ‘active’ compounds can be re-picked and re-tested at the end of an automated screening run. Automating cell-based assays has significantly improved productivity, and, with the synergism of Activity Base, has given us greater power to complete each screening run and report ‘active’ compounds to Chemistry more rapidly. This article presents our approach to the automation of cell-based Fluorescent Imaging Plate Reader (FLIPR) screening together with automated active re-test confirmation using Activity Base. 相似文献
15.
Using resource dependency theory (RDT), this research analyzes how organizations control their information technology resources
to improve organizational performance. According to RDT, organizations must manage their dependency on external organizations
and limit external dependencies when resources are considered critical. The current study proposes and tests a portion of
a Strategic Control Model positing that managers seek to control important, strategic resources in order to create value for
the firm and to avoid dependency on external entities. Utilizing a research design that captured extensive quantitative data
on the control of IT functions and services, the research team gathered 5 years of data on 54 business units (BUs) in 27 global
companies located in seven countries. Study examined the linkages of these 54 BUs to firm performance. Locating the Extent
of Control within the firm in cases where the firm depends on IT as a strategic resource proves to be a good explanation for
effective decisions leading to higher performance. Viewing IT as a strategic resource alone does not lead to positive business
unit outcomes, but the moderating influence of Extent of Control is found to establish the complex statistical relationship
with business unit performance. For these reasons, it is critical that a theoretically grounded firm-wide process for decisions
on locating IT control is in place to capture business value.
Detmar Straub The J. Mack Robinson Distinguished Professor of Information Systems at Georgia State University, Detmar has conducted research in the areas of IT outsourcing, computer security, Net-enhanced organizations (e-Commerce), technological innovation, international IT studies, and IS research methods. He holds a DBA (Doctor of Business Administration) in MIS from Indiana and a Ph.D. in English from Penn State. Detmar has published over 145 papers in journals such as MIS Quarterly, Management Science, Information Systems Research, Journal of MIS, Journal of AIS, Decision Sciences Journal, Organization Science, Communications of the ACM, Information & Management, Communications of the AIS, IEEE Transactions on Engineering Management, DATA BASE, OMEGA, Academy of Management Executive, and Sloan Management Review. Detmar is Editor-in-Chief of MIS Quarterly and former Senior Editor for Information Systems Research and Journal of the AIS and Co-Editor of DATA BASE for Advances in Information Systems. He is also an Associate Editor for the Journal of International Management. In the past he has served as Associate Editor for Management Science and Information Systems Research, and Associate Publisher/Senior Editor/Associate Editor for MIS Quarterly as well as editorial board member on a variety of other journals. Former VP of Publications for the Association of Information Systems (AIS), he has held roles as co-program chair for AMCIS and ICIS and was elected an AIS fellow in 2005. Peter Weill is an MIT Senior Research Scientist and joined MIT Sloan faculty in 2000 to become director of MIT Sloan’s Center for Information Systems Research (CISR). MIT CISR is funded by sixty corporate sponsors, and undertakes practical research on how firms generate business value from IT. Peter has written award-winning books, journal articles, and case studies on how firms govern, invest in and get value from IT. Peter’s co-authored books include: Enterprise Architecture as Strategy: Creating a Foundation for Business Execution (Harvard Business School Press, July 2006), IT Governance: How Top Performers Manage IT Decision Rights for Superior Results (2004), Leveraging the New Infrastructure: How market leaders capitalize on information technology (1998) and Place to Space: Migrating to eBusiness Models, (2001) which won one of the Library Journal of America’s best business book of the year awards and was reviewed by the New York Times. Before joining Sloan as Director of CISR, Peter was Foundation Professor and Chair of Management and a member of the Board of Directors of Melbourne Business School. Peter has been an Associate Editor for MISQ and ISR and was a program co-chair for ICIS2000 in Brisbane. Kathy S. Schwaig is an Associate Professor of Information Systems and Associate Dean for Administration in the Coles College of Business at Kennesaw State University. Her research interests include information privacy, outsourcing, project management, knowledge management and electronic commerce. She also serves as a business consultant in information systems strategy. Dr. Schwaig has published in the Communications of the ACM, The Journal of Management Information Systems, DATABASE, Information and Organization, and Information Systems Research among others. 相似文献
Kathy S. SchwaigEmail: |
Detmar Straub The J. Mack Robinson Distinguished Professor of Information Systems at Georgia State University, Detmar has conducted research in the areas of IT outsourcing, computer security, Net-enhanced organizations (e-Commerce), technological innovation, international IT studies, and IS research methods. He holds a DBA (Doctor of Business Administration) in MIS from Indiana and a Ph.D. in English from Penn State. Detmar has published over 145 papers in journals such as MIS Quarterly, Management Science, Information Systems Research, Journal of MIS, Journal of AIS, Decision Sciences Journal, Organization Science, Communications of the ACM, Information & Management, Communications of the AIS, IEEE Transactions on Engineering Management, DATA BASE, OMEGA, Academy of Management Executive, and Sloan Management Review. Detmar is Editor-in-Chief of MIS Quarterly and former Senior Editor for Information Systems Research and Journal of the AIS and Co-Editor of DATA BASE for Advances in Information Systems. He is also an Associate Editor for the Journal of International Management. In the past he has served as Associate Editor for Management Science and Information Systems Research, and Associate Publisher/Senior Editor/Associate Editor for MIS Quarterly as well as editorial board member on a variety of other journals. Former VP of Publications for the Association of Information Systems (AIS), he has held roles as co-program chair for AMCIS and ICIS and was elected an AIS fellow in 2005. Peter Weill is an MIT Senior Research Scientist and joined MIT Sloan faculty in 2000 to become director of MIT Sloan’s Center for Information Systems Research (CISR). MIT CISR is funded by sixty corporate sponsors, and undertakes practical research on how firms generate business value from IT. Peter has written award-winning books, journal articles, and case studies on how firms govern, invest in and get value from IT. Peter’s co-authored books include: Enterprise Architecture as Strategy: Creating a Foundation for Business Execution (Harvard Business School Press, July 2006), IT Governance: How Top Performers Manage IT Decision Rights for Superior Results (2004), Leveraging the New Infrastructure: How market leaders capitalize on information technology (1998) and Place to Space: Migrating to eBusiness Models, (2001) which won one of the Library Journal of America’s best business book of the year awards and was reviewed by the New York Times. Before joining Sloan as Director of CISR, Peter was Foundation Professor and Chair of Management and a member of the Board of Directors of Melbourne Business School. Peter has been an Associate Editor for MISQ and ISR and was a program co-chair for ICIS2000 in Brisbane. Kathy S. Schwaig is an Associate Professor of Information Systems and Associate Dean for Administration in the Coles College of Business at Kennesaw State University. Her research interests include information privacy, outsourcing, project management, knowledge management and electronic commerce. She also serves as a business consultant in information systems strategy. Dr. Schwaig has published in the Communications of the ACM, The Journal of Management Information Systems, DATABASE, Information and Organization, and Information Systems Research among others. 相似文献
16.
Lepage Kathy; Kratochwill Thomas R.; Elliott Stephen N. 《Canadian Metallurgical Quarterly》2004,19(1):1
Assessments of consultants, clients, and consumer satisfaction were used to examine the effects of a competency-based consultation training program conducted over 4 years. Using a multiple-baseline framework to assess training effects on consultants and single-case study designs to evaluate changes in client behavior, a number of significant results were found. As predicted, consultants (N=24) significantly increased their consultation skills and knowledge, but with no change in attitudes toward behavioral intervention techniques. Supervised consultation with preschool teachers and parents resulted in a range of behavior change in clients (N=39), with an overall effect size of 0.51. Consumers reported a high level of satisfaction with training and consultation services. Results of a long-term follow-up with consultants indicated positive views and use of consultation. The discussion focuses on these results, and implications for consultation training and future research directions. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献
17.
18.
Sandra Appelt Sharif S. Aly Karen Tonooka Kathy Glenn Zhengyao Xue Terry W. Lehenbauer Maria L. Marco 《Journal of dairy science》2019,102(3):1985-1996
Bovine mastitis is an economic burden for dairies worldwide. Mycoplasma species, and especially Mycoplasma bovis, are among the most important causative agents, and rapid, precise, and low-cost methods for Mycoplasma detection are urgently needed. For this purpose, loop-mediated isothermal amplification (LAMP) and quantitative PCR (qPCR) assays were developed and compared. The LAMP assay was designed and primer concentrations optimized to M. bovis oppD, encoding oligopeptide permease D. For qPCR, a Taqman assay (Applied Biosystems, Carlsbad, CA) targeting M. bovis gltX, encoding glutamate transfer RNA ligase, was optimized for primer concentration, annealing temperature, and DNA polymerase. Both assays were similarly sensitive, with a detection limit of approximately 104 to 105 M. bovis cells/mL. Both assays were also successful in confirming M. bovis identity in laboratory culture suspensions and in bovine milk. The LAMP and qPCR assays combined with the MoBio DNA extraction kit (MoBio Laboratories Inc., Carlsbad, CA) resulted in the correct detection of 13 out of 13 M. bovis isolates and 14 out of 16 M. bovis-positive milk samples collected from commercial dairies in California. When combined with the PrepMan Ultra reagent (Applied Biosystems), the qPCR assay resulted in confirming 21 out of 21 M. bovis-positive milk samples. Comparison of the assays to milk containing either Mycoplasma arginini, Mycoplasma bovigenitalium, Mycoplasma californicum, M. alkalescens, or Acholeplasma laidlawii or milk lacking any detectable Mycoplasma species or relatives resulted in 3 out of 17 (LAMP with MoBio), 1 out of 17 (qPCR with MoBio), and 2 out of 36 (qPCR with PrepMan Ultra) false positives. Overall, the qPCR assay was more robust than LAMP and could be used on DNA recovered from milk prepared with the PrepMan Ultra reagent, a method that does not include a DNA purification step. The use of this qPCR method enables M. bovis detection in bovine milk in 40 to 55 min, and therefore provides new opportunities to accelerate and simplify M. bovis detection in unpasteurized milk to reduce the incidence of M. bovis mastitis outbreaks. 相似文献
19.
Stephanie Ehlers Dr. Daiane Szczerbowski Dr. Tim Harig Dr. Matthew Stell Dr. Susan Hötling Dr. Kathy Darragh Prof. Dr. Chris D. Jiggins Prof. Dr. Stefan Schulz 《Chembiochem : a European journal of chemical biology》2021,22(23):3300-3313
The butterfly Heliconius erato occurs in various mimetic morphs. The male clasper scent gland releases an anti-aphrodisiac pheromone and additionally contains a complex mixture of up to 350 components, varying between individuals. In 114 samples of five different mimicry groups and their hybrids 750 different compounds were detected by gas chromatography/mass spectrometry (GC/MS). Many unknown components occurred, which were identified using their mass spectra, gas chromatography/infrared spectroscopy (GC/IR)-analyses, derivatization, and synthesis. Key compounds proved to be various esters of 3-oxohexan-1-ol and (Z)-3-hexen-1-ol with (S)-2,3-dihydrofarnesoic acid, accompanied by a large variety of other esters with longer terpene acids, fatty acids, and various alcohols. In addition, linear terpenes with up to seven uniformly connected isoprene units occur, e. g. farnesylfarnesol. A large number of the compounds have not been reported before from nature. Discriminant analyses of principal components of the gland contents showed that the iridescent mimicry group differs strongly from the other, mostly also separated, mimicry groups. Comparison with data from other species indicated that Heliconius recruits different biosynthetic pathways in a species-specific manner for semiochemical formation. 相似文献
20.
Kathy Lu Donald Erb Kaustubh Bawane Ni Yang 《Journal of the European Ceramic Society》2019,39(10):3035-3041
This study is to understand the effect of carbon content on the pyrolysis behaviors and phase contents of silicon oxycarbides (SiOCs). Flash pyrolysis conditions, evolution of different SiOC phases, and free carbon types/amounts are compared for C-rich and less C-rich precursors. The C-rich system experiences the flash event at a much lower pyrolysis temperature with a much higher current density even though the internal temperatures at flash are very similar. SiC formation is more obvious for the C-rich samples along with a much higher carbon content under both flash and traditional pyrolysis conditions. The phase contents of SiO2, SiC, and other SiOC intermediates can be calculated using a Gibbs energy minimization method, showing that the C-rich sample has more C-rich SiOC intermediates while the less C-rich sample has more Si-rich intermediates. This research provides a general framework in assessing the pyrolysis behaviors of different SiOC materials. 相似文献