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Journal articles on the topic 'UCSD p-system (Computer system)'

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Published: 4 June 2021

Last updated: 6 February 2022

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1

Hao, Dongmei, Yang An, Xiangyun Qiao, Qian Qiu, Xiya Zhou, and Jin Peng. "Development of Electrohysterogram Recording System for Monitoring Uterine Contraction." Journal of Healthcare Engineering 2019 (July 1, 2019): 1–9. http://dx.doi.org/10.1155/2019/4230157.

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Uterine contraction (UC) is an important clinical indictor for monitoring uterine activity. The purpose of this study is to develop a portable electrohysterogram (EHG) recording system (called PregCare) for monitoring UCs with EHG signals. The PregCare consisted of sensors, a signal acquisition device, and a computer with application software. Eight-channel EHG signals, the tocodynamometry (TOCO) signal, and maternal perception were recorded simultaneously by the signal acquisition device controlled by the computer via Bluetooth. PregCare was firstly evaluated by a signal simulator. Its relative error (RE) and coefficient of variation (CV) were calculated, and its agreement with the commercial instrument PowerLab was assessed by Bland–Altman plots. After that, PregCare was applied to 20 pregnant women in a hospital to record their EHG signals. These EHG signals were preprocessed and segmented into UCs and non-UCs. Then, the EHG features corresponding to UCs and non-UCs were extracted, respectively, including power spectral density (PSD), root mean square (RMS), peak frequency (PF), median frequency (MDF), and sample entropy (SamEn). One-way ANOVA was employed to assess the difference between UCs and non-UCs. The results show that RE and CV were less than 8% and 0.03%, respectively, which indicated the high accuracy and repeatability of PregCare. The small differences of mean and standard deviation indicated the high agreement between PregCare and PowerLab. Besides, the PSD of UCs was much larger than non-UCs between 0 and 0.7 Hz. RMS of UCs was significantly larger than non-UCs (p<0.05). PF and SamEn of UCs were significantly smaller than non-UCs (p<0.05). In conclusion, the developed EHG recording system was able to record EHG signals reliably. It has the advantages of portability, low power consumption, and wireless transmission, which can be used for long-term monitoring of UCs and prediction of the preterm delivery.

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Javazi, Fariba, Parisa Sedaghati, and Hasan Daneshmandi. "The Effect of Selected Corrective Exercises With Physioball on the Posture of Female Computer Users With Upper Crossed Syndrome." Journal of Sport Biomechanics 5, no. 2 (September 1, 2019): 112–23. http://dx.doi.org/10.32598/biomechanics.5.2.5.

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Objective Upper Crossed Syndrome (UCS) is a type of musculoskeletal system involvement that results in shortening of anterior muscles and weakening of posterior muscles. The aim of this study was to examine the effect of selected corrective exercises with physioball on the postural status of female computer users with UCS. Methods This quasi-experimental study was conducted on 24 female students with UCS who were selected using a purposive sampling method. The subjects were randomly divided into two groups of exercise (n=12) and control (n=12). The exercise group performed exercises for 6 weeks. Photogrammetry method was used to measure the angle of the forward head and round shoulder. A flexible ruler was used to measure the angle of kyphosis, and tape measure was used to measure the chest expansion. These measurements were performed before and after intervention. The collected data were analyzed using paired t-test and ANOVA at the significance level of P<0.05. Results There was a significant difference in mean values of kyphosis (P=0.001), round shoulder (P=0.001), forward head (P=0.002) and chest expansion (P=0.003) before and after exercise. Conclusion Improvement in forward head, round shoulder and thoracic kyphosis angles and chest expansion showed the effectiveness of applied exercise program. Therefore, it is recommended to use this exercise program in computer users with UCS.

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Orenstein, Evan W., Jeanne Boudreaux, Margo Rollins, Jennifer Jones, Christy Bryant, Dean Karavite, Naveen Muthu, et al. "Formative Usability Testing Reduces Severe Blood Product Ordering Errors." Applied Clinical Informatics 10, no. 05 (October 2019): 981–90. http://dx.doi.org/10.1055/s-0039-3402714.

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Abstract Background Medical errors in blood product orders and administration are common, especially for pediatric patients. A failure modes and effects analysis in our health care system indicated high risk from the electronic blood ordering process. Objectives There are two objectives of this study as follows:(1) To describe differences in the design of the original blood product orders and order sets in the system (original design), new orders and order sets designed by expert committee (DEC), and a third-version developed through user-centered design (UCD).(2) To compare the number and type of ordering errors, task completion rates, time on task, and user preferences between the original design and that developed via UCD. Methods A multidisciplinary expert committee proposed adjustments to existing blood product order sets resulting in the DEC order set. When that order set was tested with front-line users, persistent failure modes were detected, so orders and order sets were redesigned again via formative usability testing. Front-line users in their native clinical workspaces were observed ordering blood in realistic simulated scenarios using a think-aloud protocol. Iterative adjustments were made between participants. In summative testing, participants were randomized to use the original design or UCD for five simulated scenarios. We evaluated differences in ordering errors, time on task, and users' design preference with two-sample t-tests. Results Formative usability testing with 27 providers from seven specialties led to 18 changes made to the DEC to produce the UCD. In summative testing, error-free task completion for the original design was 36%, which increased to 66% in UCD (30%, 95% confidence interval [CI]: 3.9–57%; p = 0.03). Time on task did not vary significantly. Conclusion UCD led to substantially different blood product orders and order sets than DEC. Users made fewer errors when ordering blood products for pediatric patients in simulated scenarios when using the UCD orders and order sets compared with the original design.

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dal Ponte, M., B. Santiago, A. Carnero Rosell, B. Burningham, B. Yanny, J. L. Marshall, K. Bechtol, et al. "Increasing the census of ultracool dwarfs in wide binary and multiple systems using Dark Energy Survey DR1 and Gaia DR2 data." Monthly Notices of the Royal Astronomical Society 499, no. 4 (October 9, 2020): 5302–17. http://dx.doi.org/10.1093/mnras/staa3118.

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ABSTRACT We present the discovery of 255 binary and 6 multiple system candidates with wide (> 5 arcsec) separation composed by ultracool dwarfs (UCDs) companions to stars, plus nine double ultracool dwarf systems. These systems were selected based on common distance criteria. About 90 per cent of the total sample has proper motions available and 73 per cent of the systems also satisfy a common proper motion criterion. The sample of ultracool candidates was taken from the Dark Energy Survey (DES) and the candidate stellar primaries are from Gaia DR2 and DES data. We compute chance alignment probabilities in order to assess the physical nature of each pair. We find that 174 candidate pairs with Gaia DR2 primaries and 81 pairs with a DES star as a primary have chance alignment probabilities $\lt 5{{\ \rm per\ cent}}$. Only nine candidate systems composed of two UCDs were identified. The sample of candidate multiple systems is made up of five triple systems and one quadruple system. The majority of the UCDs found in binaries and multiples are of early L type and the typical wide binary fraction over the L spectral types is $2\!-\!4{{\ \rm per\ cent}}$. Our sample of candidate wide binaries with UCDs as secondaries constitutes a substantial increase over the known number of such systems, which are very useful to constrain the formation and evolution of UCDs.

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Hananto, Agustia, Muhamad Mammun, and Nurhayati. "Implementation of the Futsal Field Ordering Platform using the UCD Method." Buana Information Technology and Computer Sciences (BIT and CS) 1, no. 1 (January 1, 2020): 19–22. http://dx.doi.org/10.36805/bit-cs.v1i1.678.

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The development of information technology is exploding. We cannot separate the need for information from the use and use of computers. With a computerized information system, the work done will be more effective and accurate. Karawang Futsal is a sports venue in the Karawang Regency. Using the futsal ordering system is still manual, the data input system which is still recording in the ledger, making reports is not accurate because of frequent miscalculations that result in making reports not on time because all processes are done. Therefore, with the existence of a computer system, all the needs for everything in the Karawang Regency Futsal will run.

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Tate, Christine C., Todd Estes, John Hagan, and Larry Hettinger. "Lessons Learned from Integrating User-Centered Design into a Large-Scale Defense Procurement." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 49, no. 23 (September 2005): 2041–44. http://dx.doi.org/10.1177/154193120504902309.

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The US Navy is currently implementing “optimal manning” approaches to the design of future warships. Simply put, this emphasis takes the form of designing and deploying ships whose blend of human and mechanical/computer-based systems reduces the need for traditionally large crews while improving overall system performance and safety. Reflecting this emphasis, a Future Surface Combatant program currently in the design stage is the first Navy procurement in which the principles of user-centered design (UCD) and human-systems integration (HSI) are key design drivers. The integration of UCD and HSI methods has never been attempted in a design effort of this magnitude, and has inevitably led to illuminating insights on the part of human factors, system engineering, and other disciplines engaged in the effort. This paper provides an overview of “lessons learned,” and is intended to assist the future integration of UCD and HSI principles into the design of similarly complex systems.

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Alyahya, Sultan, and Ohoud Almughram. "Managing User-Centered Design Activities in Distributed Agile Development." Interacting with Computers 32, no. 5-6 (September 2020): 548–68. http://dx.doi.org/10.1093/iwc/iwab010.

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Abstract The integration of user-centered design (UCD) activities into agile information systems development has become more popular recently. Despite the fact that there are many ways the merging of UCD activities into agile development can be carried out, it has been widely recognized that coordinating design activities with development activities is one of the most common problems, especially in distributed environments where designers, developers and users are spread over several sites. The main approach to coordinate UCD activities with distributed agile development is the use of informal methods (e.g. communication through using video conference tools). In addition to the temporal, geographical and socio-cultural barriers associated with this type of methods, a major limitation is a lack of awareness of how UCD activities and development activities affect each other. Furthermore, some agile project management tools are integrated with design platforms but fail to provide the necessary coordination that helps team members understand how the design and development activities affect their daily work. This research aims to support the effective management of integrating UCD activities into distributed agile development by (i) identifying the key activity dependencies between UX design teams and development teams during distributed UCD/agile development and (ii) designing a computer-based system to provide coordination support through managing these activity dependencies. In order to achieve these objectives, two case studies are carried out. Our findings revealed 10 main dependencies between UCD design teams and development teams as shown by six types of activity. In addition, the participatory design approach shows that developing a computer-based system to manage seven of these selected dependencies is achievable.

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The National Nondestructive Testing Centre. "Microfocal computer tomography system." NDT & E International 25, no. 2 (1992): 110–11. http://dx.doi.org/10.1016/0963-8695(92)90631-p.

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Haghighat, Fariborz, and Jiwu Rao. "Computer-aided building ventilation system design — a system-theoretic approach." Energy and Buildings 17, no. 2 (January 1991): 147–55. http://dx.doi.org/10.1016/0378-7788(91)90007-p.

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Schranz, Craig I., Edward M. Castillo, and Gary M. Vilke. "The 2007 San Diego Wildfire Impact on the Emergency Department of the University of California, San Diego Hospital System." Prehospital and Disaster Medicine 25, no. 5 (October 2010): 472–76. http://dx.doi.org/10.1017/s1049023x0000858x.

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AbstractIntroduction:In October 2007, San Diego County experienced a severe firestorm resulting in the burning of more than 368,000 acres, the destruction of more than 1,700 homes, and the evacuation of more than 500,000 people.Hypothesis:The goal of this study was to assess the impact of the 2007 San Diego Wildfires, and the acute change in air quality that followed, on the patient volume and types of complaints in the emergency department.Method:A retrospective review was performed of a database of all patients presenting to the Emergency Departments of University of California, San Diego (UCSD) hospitals for a six-day period both before (14–19 October 2007) and after (21–26 October 2007) the start of the 2007 firestorm. Charts were abstracted for data, including demographics, chief complaints, past medical history, fire-related injuries and disposition status. As a measure of pollution, levels of 2.5 micron Particulate Matter (PM 2.5) also were calculated from data provided by the San Diego Air Pollution Control District.Results:Emergency department volume decreased by 5.8% for the period following the fire. A rapid rise in PM2.5 levels coincided with the onset of the fires. The admission rate was higher in the period following the fires (19.8% vs. 15.2%) from the baseline period. Additionally, the Left Without Being Seen (LWBS) rate doubled to 4.6% from 2.3%. There was a statistically significant increase in patients presenting with a chief complaint of shortness of breath (6.5% vs. 4.2% p = 0.028) and smoke exposure (1.1% vs. 0% p = 0.001) following the fires. Patients with significant cardiac or pulmonary histories were no more likely to present to the emergency department during the fires.Conclusions:Despite the decreased volume, the admission and LWBS rate did increase following the onset of the firestorm. The cause of this increase is unclear. Despite a sudden decline in air quality, patients with significant cardiac and pulmonary morbidity did not vary their emergency department utilization rate. Based on the experience at UCSD, it appears that significant wildfires like that seen in 2007, only may marginally affect emergency department operations, and may not require significant changes to normal staffing levels.

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Smotrov, Maksim P., Dmitry G. Cherkasov, and Konstantin K. Il'in. "Salting-in–salting-out effect of potassium salts on the binary liquid water + n-butoxyethanol system with a closed delamination region." Radioelectronics. Nanosystems. Information Technologies. 13, no. 2 (June 12, 2021): 177–86. http://dx.doi.org/10.17725/rensit.2021.13.177.

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The work is devoted to the comparative characteristics of the salting-in –salting-out effect of potassium formate, nitrate and perchlorate on the binary liquid water + n-butoxyethanol system with a closed delamination region in a temperature range of 10–150°C. The introduction of potassium formate or potassium nitrate into the mixtures of the critical composition of the binary water + n-butoxyethanol system leads to a decrease in the LCST (lower critical solution temperature) and an increase in the UCST (upper critical solution temperature) of this system, while the addition of potassium perchlorate leads to an increase in the LCST and a decrease in the UCST. For three ternary systems potassium salt + water + n-butoxyethanol, the distribution coefficients of n-butoxyethanol between the aqueous and organic phases of the monotectic state were calculated for several temperatures. It has been found that the distribution coefficient increases with temperature in each system. It has been established that potassium formate and potassium nitrate have a salting-out effect, the former having a particularly strong one. Potassium perchlorate at low concentrations and relatively low temperatures is characterized by a salting-in effect, which turns into a weak salting-out effect at higher temperatures. The results obtained can be used to develop practical recommendations for carrying out selective extraction of organic solvents and extractive crystallization of salts.

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Rizvi, Rubina, Jenna Marquard, Gretchen Hultman, Terrence Adam, Kathleen Harder, and Genevieve Melton. "Usability Evaluation of Electronic Health Record System around Clinical Notes Usage–An Ethnographic Study." Applied Clinical Informatics 08, no. 04 (2017): 1095–105. http://dx.doi.org/10.4338/aci-2017-04-ra-0067.

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Background A substantial gap exists between current Electronic Health Record (EHR) usability and potential optimal usability. One of the fundamental reasons for this discrepancy is poor incorporation of a User-Centered Design (UCD) approach during the Graphical User Interface (GUI) development process. Objective To evaluate usability strengths and weaknesses of two widely implemented EHR GUIs for critical clinical notes usage tasks. Methods Twelve Internal Medicine resident physicians interacting with one of the two EHR systems (System-1 at Location-A and System-2 at Location-B) were observed by two usability evaluators employing an ethnographic approach. User comments and observer findings were analyzed for two critical tasks: (1) clinical notes entry and (2) related information-seeking tasks. Data were analyzed from two standpoints: (1) usability references categorized by usability evaluators as positive, negative, or equivocal and (2) usability impact of each feature measured through a 7-point severity rating scale. Findings were also validated by user responses to a post observation questionnaire. Results For clinical notes entry, System-1 surpassed System-2 with more positive (26% vs. 12%) than negative (12% vs. 34%) usability references. Greatest impact features on EHR usability (severity score pertaining to each feature) for clinical notes entry were: autopopulation (6), screen options (5.5), communication (5), copy pasting (4.5), error prevention (4.5), edit ability (4), and dictation and transcription (3.5). Both systems performed equally well on information-seeking tasks and features with greatest impacts on EHR usability were navigation for notes (7) and others (e.g., looking for ancillary data; 5.5). Ethnographic observations were supported by follow-up questionnaire responses. Conclusion This study provides usability-specific insights to inform future, improved, EHR interface that is better aligned with UCD approach.

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Daly Lynn, Jean Mary, Elaine Armstrong, and Suzanne Martin. "User centred design and validation during the development of domestic brain computer interface applications for people with acquired brain injury and therapists: a multi-stakeholder approach." Journal of Assistive Technologies 10, no. 2 (June 20, 2016): 67–78. http://dx.doi.org/10.1108/jat-01-2016-0002.

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Purpose – The purpose of this paper is to outline the application of user centred design (UCD) within a research project to support the design, development and evaluation of a brain computer interface (BCI) with associated home-based services and remote therapy station for people with acquired brain injury (ABI). Design/methodology/approach – A multi- stakeholder UCD approach was adopted to include people living with ABI, their caregivers and therapists providing rehabilitation. A three-phased iterative approach was implemented: Phase 1 was to gather user requirements, Phase 2 an iterative design phase with end user (EU) groups and therapists and finally the verification and implementation phase. The final phase had two strands of a home-based BCI evaluation with target EUs and their caregivers, alongside this, therapists evaluated the final therapist station that supports the use of the BCI at home. Ethical governance, inline with Ulster University, was awarded. Findings – UCD enabled the co-creation and validation of a home-based BCI system for social inclusion and rehabilitation. Originality/value – This was the first BCI project to adopt UCD to design and validation a novel home-based BCI system and migrate this from the lab to home. It highlights the importance of UCD to bridge the gap between the technical developers and those whom the technology is aimed at. This complex design process is essential to increase usability and reduce device abandonment.

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Chen, Bin, Zhiwu Huang, Rui Zhang, Heng Li, and Zhihui Wu. "An Improved TL Buck Converter for Fast-Charging Energy Storage System Using UCs." Journal of Advanced Computational Intelligence and Intelligent Informatics 20, no. 7 (December 20, 2016): 1086–93. http://dx.doi.org/10.20965/jaciii.2016.p1086.

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Due to the disadvantages of existing ultracapacitor (UC) charging topologies, e.g., slow transient response, an improved three-level (TL) buck charging topology is proposed. Voltage is divied by the energy transformation of the flying-capacitance. The model of the circuit is shifted adaptively on the basis of the dynamic parameters of the reference current, improving the speed of the output current adjustment. Finally, simulation results validate the feasibility of the proposed TL buck topology for the UC energy storage system.

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Hasegawa, Bruce H., Kenneth H. Wong, Koji Iwata, William C. Barber, Andrew B. Hwang, Anne E. Sakdinawat, Mohan Ramaswamy, David C. Price, and Randall A. Hawkins. "Dual-Modality Imaging of Cancer with SPECT/CT." Technology in Cancer Research & Treatment 1, no. 6 (December 2002): 449–58. http://dx.doi.org/10.1177/153303460200100605.

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Dual-modality imaging is an in vivo diagnostic technique that obtains structural and functional information directly from patient studies in a way that cannot be achieved with separate imaging systems alone. Dual-modality imaging systems are configured by combining computed tomography (CT) with radionuclide imaging (using positron emission tomography (PET) or single-photon emission computed tomography (SPECT)) on a single gantry which allows both functional and structural imaging to be performed during a single imaging session without having the patient leave the imaging system. A SPECT/CT system developed at UCSF is being used in a study to determine if dual-modality imaging offers advantages for assessment of patients with prostate cancer using111 In-ProstaScint®, a radiolabeled antibody for the prostate-specific membrane antigen.111 In-ProstaScint® images are reconstructed using an iterative maximum-likelihood expectation-maximization (ML-EM) algorithm with correction for photon attenuation using a patient-specific map of attenuation coefficients derived from CT. The ML-EM algorithm accounts for the dual-photon nature of the111 In-labeled radionuclide, and incorporates correction for the geometric response of the radionuclide collimator. The radionuclide image then can be coregistered and overlaid in color on a grayscale CT image for improved localization of the functional information from SPECT. Radionuclide images obtained with SPECT/CT and reconstructed using ML-EM with correction for photon attenuation and collimator response improve image quality in comparison to conventional radionuclide images obtained with filtered backprojection reconstruction. These results illustrate the potential advantages of dual-modality imaging for improving the quality and the localization of radionuclide uptake for staging disease, planning treatment, and monitoring therapeutic response in patients with cancer.

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Sabin, Malcolm. "CAD system components." Computer-Aided Design 25, no. 3 (March 1993): 139–40. http://dx.doi.org/10.1016/0010-4485(93)90038-p.

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Orriols-Puig, A., J. Casillas, and E. Bernado-Mansilla. "Fuzzy-UCS: A Michigan-Style Learning Fuzzy-Classifier System for Supervised Learning." IEEE Transactions on Evolutionary Computation 13, no. 2 (April 2009): 260–83. http://dx.doi.org/10.1109/tevc.2008.925144.

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Johannsen, Klaus G. "Mobile P-service satellite system comparison." International Journal of Satellite Communications 13, no. 6 (November 1995): 453–71. http://dx.doi.org/10.1002/sat.4600130604.

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Ayoola, Olapeju Latifat, and Eleni Mangina. "The Construction of a Personalised and Social U-Learning Environment for Third Level Education." International Journal of Cyber Ethics in Education 2, no. 3 (July 2012): 45–56. http://dx.doi.org/10.4018/ijcee.2012070103.

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This paper presents a ubiquitous learning (u-learning) system, the “Personalised Ubiquitous Learning Platform” (PULP), which integrates collaborative and social learning for the enhancement of the third level educational learning experience. University College Dublin (UCD) provides its students with managed learning environments (MLEs) and adaptive learning via UCD Horizon which enables students to take different courses from different colleges throughout the university. The main objective of this platform is to complement the current MLEs with a single supported intelligent and personalised ubiquitous learning environment that will promote and make provisions for adaptive and collaborative learning, human computer interaction on mobile and desktop clients anywhere and anytime. The system aims to enhance the students’ learning experience in third level educational environment by employing personalisation techniques such as the agent-oriented recommendation technique to engage students and help them access the content material for their studies.

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Stockwell, David R. B. "LBS: Bayesian learning system for rapid expert system development." Expert Systems with Applications 6, no. 2 (April 1993): 137–47. http://dx.doi.org/10.1016/0957-4174(93)90004-p.

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Lefticaru, Raluca, Marian Gheorghe, and Florentin Ipate. "An empirical evaluation of P system testing techniques." Natural Computing 10, no. 1 (March 28, 2010): 151–65. http://dx.doi.org/10.1007/s11047-010-9188-y.

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Zeng, Xiangxiang, Chun Lu, and Linqiang Pan. "A weakly universal spiking neural P system." Mathematical and Computer Modelling 52, no. 11-12 (December 2010): 1940–46. http://dx.doi.org/10.1016/j.mcm.2010.04.017.

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Karmouch, Ahmed. "Multimedia distributed cooperative system." Computer Communications 16, no. 9 (September 1993): 568–80. http://dx.doi.org/10.1016/0140-3664(93)90027-p.

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Katori, N., T. Tanaka, and K. Hakamada. "P.410 Computer assisted resection of tumors with navigation system." Journal of Cranio-Maxillofacial Surgery 36 (September 2008): S269—S270. http://dx.doi.org/10.1016/s1010-5182(08)72198-x.

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Lehotay-Kéry, Péter, Tamás Tarczali, and Attila Kiss. "P System–Based Clustering Methods Using NoSQL Databases." Computation 9, no. 10 (September 24, 2021): 102. http://dx.doi.org/10.3390/computation9100102.

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Models of computation are fundamental notions in computer science; consequently, they have been the subject of countless research papers, with numerous novel models proposed even in recent years. Amongst a multitude of different approaches, many of these methods draw inspiration from the biological processes observed in nature. P systems, or membrane systems, make an analogy between the communication in computing and the flow of information that can be perceived in living organisms. These systems serve as a basis for various concepts, ranging from the fields of computational economics and robotics to the techniques of data clustering. In this paper, such utilization of these systems—membrane system–based clustering—is taken into focus. Considering the growing number of data stored worldwide, more and more data have to be handled by clustering algorithms too. To solve this issue, bringing these methods closer to the data, their main element provides several benefits. Database systems equip their users with, for instance, well-integrated security features and more direct control over the data itself. Our goal is if the type of the database management system is given, e.g., NoSQL, but the corporation or the research team can choose which specific database management system is used, then we give a perspective, how the algorithms written like this behave in such an environment, so that, based on this, a more substantiated decision can be made, meaning which database management system should be connected to the system. For this purpose, we discover the possibilities of a clustering algorithm based on P systems when used alongside NoSQL database systems, that are designed to manage big data. Variants over two competing databases, MongoDB and Redis, are evaluated and compared to identify the advantages and limitations of using such a solution in these systems.

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Luo, Yueguo, Ping Guo, and Mingzhe Zhang. "A Framework of Ant Colony P System." IEEE Access 7 (2019): 157655–66. http://dx.doi.org/10.1109/access.2019.2949952.

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Yim, Kendrick, Ahmet Bindayi, Stephen Ryan, Madhumitha Reddy, Ryan Nasseri, Fang Wan, Christopher Long, Zachary Hamilton, and Ithaar Derweesh. "U-SMART: (UCSD-small mass alt renal score tumor diameter) a novel scoring system of preoperative predictors to stratify oncologic risk of small renal mass." Journal of Clinical Oncology 36, no. 6_suppl (February 20, 2018): 700. http://dx.doi.org/10.1200/jco.2018.36.6_suppl.700.

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700 Background: Small renal masses (SRMs, < 4 cm in diameter) are heterogeneous, with significant proportions of benign as well as high-grade malignancy. We developed a scoring system incorporating patient factors, serum markers, and morphometric characteristics to elucidate benign and high grade pathology and guide decision making. Methods: Single institution retrospective analysis of surgically treated SRMs from 2003-2017. Demographic and clinical factors, including RENAL score, were analyzed. Patients were categorized into 3 groups: benign (BNGN), low grade (LG), or high grade (HG) disease and uni- and multivariable logistic regression were used to screen for association between potential parameters and the 3 groups. Each significant variable was analyzed by risk group and broken into quartiles. The 75th percentile of the HG group was assigned a value of 3. Below the 75th percentile of the BNGN group was assigned a value of 1; values that fell between these cutoffs were assigned 2 points. Tumor diameter was weighted twice that of other factors. Receiver-operating-characteristic (ROC) analysis was used to assess for predictive capability. Results: 312 patients were analyzed (65 BNGN, 204 LG, 43 HG). Factors associated with increased risk of HG were male sex (OR 1.868, p = 0.045), higher ALT (OR 1.036, p = 0.022), higher RENAL score (OR 1.318, p = 0.002), and larger tumor diameter (OR 2.415, p < 0.001). Patients with low (5-8), intermediate (9-11) and high (12-14) scores had 32.8%, 5.2%, and 0% frequency of BNGN pathology. Patients with low, intermediate, and high scores had 7.7%, 18.6%, and 34.9% frequency of HG pathology. ROC analysis revealed AUC of 0.767. Conclusions: Preoperative clinical parameters were incorporated into a model that significantly predicts benign and aggressive pathology for SRMs. This risk stratification may provide a non-invasive method to aid in clinical decision making. External validation is requisite.[Table: see text]

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Suzuki, E., T. Akutsu, and S. Ohsuga. "Knowledge-based system for computer-aided drug design." Knowledge-Based Systems 6, no. 2 (June 1993): 114–26. http://dx.doi.org/10.1016/0950-7051(93)90026-p.

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Manca, Vincenzo, Roberto Pagliarini, and Simone Zorzan. "A photosynthetic process modelled by a metabolic P system." Natural Computing 8, no. 4 (October 17, 2008): 847–64. http://dx.doi.org/10.1007/s11047-008-9104-x.

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Guo, Ping, Wenjie Jiang, and Yuchi Liu. "A P system for hierarchical clustering." International Journal of Modern Physics C 30, no. 08 (August 2019): 1950062. http://dx.doi.org/10.1142/s0129183119500621.

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Membrane computing, also known as P system, is a distributed and parallel computation framework models. Hierarchical clustering is one of the most basic and widely applied clustering algorithms among all clustering algorithms. In this paper, the combination of membrane computing and hierarchical clustering algorithm is studied. A cell-like hierarchical clustering P system with priority evolution rules and promoters is designed by using the maximum parallelism of membrane computing. The feasibility and effectiveness of the designed P system are verified by the examples.

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Wu, Wei, Anna Berestova, Alisa Lobuteva, and Natalia Stroiteleva. "An Intelligent Computer System for Assessing Student Performance." International Journal of Emerging Technologies in Learning (iJET) 16, no. 02 (January 26, 2021): 31. http://dx.doi.org/10.3991/ijet.v16i02.18739.

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The purpose of the study is to identify and compare the influence of formative and summative assessment approaches based on an intelligent computer system that provides automatic feedback; the assessment is carried out in paper format, but obtaining feedback requires an appointment with a teacher. The study was conducted among 50 students in I.M. Sechenov First Moscow State Medical University (Russia) and Wuxi Institute of Technology (China). The assessment was carried out based on online tools and an intelligent learning system (ASP.NET web applications and MCQ tests). It was found that the average score of the formative test of students who passed an assessment test in the electronic format is higher than the score of those who passed the test in the classroom [t (165 = 5.334, p <0.05]. Pearson's correlation coefficient in the experimental (r2 = +0.329; p = 0.009) and control (r2 = +0.176; p = 0.076) groups confirmed a sig-nificant positive correlation. The solution can be integrated into the educational process as an additional student tool that will reduce the burden of teacher work-load and increase the assessment objectivity along with the overall performance of students.

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Zeyi, Hua, and Shi Chong Shan. "A microcomputer system for collecting and processing physiological information about the masticatory system." Computer Methods and Programs in Biomedicine 36, no. 1 (September 1991): 45–50. http://dx.doi.org/10.1016/0169-2607(91)90019-p.

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Gerster, Stephan, Michael Herty, and Aleksey Sikstel. "Hyperbolic stochastic Galerkin formulation for the p-system." Journal of Computational Physics 395 (October 2019): 186–204. http://dx.doi.org/10.1016/j.jcp.2019.05.049.

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Tateyama, Kiyohisa, Masami Akimoto, and Mitsuru Ushijima. "Resist process system." Robotics and Computer-Integrated Manufacturing 10, no. 4 (August 1993): ii. http://dx.doi.org/10.1016/0736-5845(93)90049-p.

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Ward, Michael J., Bryson Chavis, Ritu Banerjee, Sophie Katz, and Shilo Anders. "User-Centered Design in Pediatric Acute Care Settings Antimicrobial Stewardship." Applied Clinical Informatics 12, no. 01 (January 2021): 034–40. http://dx.doi.org/10.1055/s-0040-1718757.

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Abstract Background Antibiotic prescribing in ambulatory care centers is increasing. Previous research suggests that 20 to 50% of antibiotic prescriptions are either unnecessary or inappropriate. Unnecessary antibiotic consumption can harm patients by increasing antibiotic resistance and drug-associated toxicities, and the reasons for such use are multifactorial. Antimicrobial Stewardship Programs (ASP) were developed to guide better use of antibiotics. A core element of ASP is to provide feedback to clinical providers. To create clinically meaningful feedback, user-center design (UCD) is a robust approach to include end-users in the design process to improve systems. Objective The study aimed to take a UCD approach to developing antibiotic prescribing feedback through input from clinicians in two ambulatory care settings. Methods We conducted two group prototyping sessions with pediatric clinicians who practice in the emergency department and urgent care settings at a tertiary care children's hospital. Participants received background on the problem of antibiotic prescribing and then were interviewed about their information needs, perceived value, and desired incentives for a prescribing feedback system. Sessions concluded with their response and recommendations to sample sections of an antibiotic feedback report including orienting material, report detail, targeted education, and resources. Results A UCD approach was found to be highly valuable in the development of a feedback mechanism that is viewed as desirable by clinicians. Clinicians preferred interpreting the data themselves with aids such as diagrams and charts over the researcher concluded statements about the clinician's behavior. Specific feedback that clinicians considered redundant were removed from the model if preexisting alerts were established. Conclusion Integrating a UCD approach in developing ASP feedback identified desirable report characteristics that substantially modified preliminary wireframes for feedback. Future research will evaluate the clinical effectiveness of our feedback reports in outpatient settings.

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Hanson, J. Greg, and Ali Orooji. "Predictive performance analysis of a multi-computer database system." Information Systems 15, no. 4 (January 1990): 401–16. http://dx.doi.org/10.1016/0306-4379(90)90044-p.

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de Castro, Francisco. "Computer simulation of the dynamics of a dune system." Ecological Modelling 78, no. 3 (April 1995): 205–17. http://dx.doi.org/10.1016/0304-3800(93)e0090-p.

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Kazimierski, Witold, and Natalia Wawrzyniak. "MODIFICATION OF ECDIS INTERFACE FOR THE PURPOSES OF GEOINFORMATIC SYSTEM FOR PORT SECURITY." Annual of Navigation 20, no. 1 (June 1, 2013): 59–70. http://dx.doi.org/10.2478/aon-2013-0005.

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ABSTRACT The paper presents a functional concept of an interface for one of the users in Geoinformatic System for Port Security. The system goal is to support port security by providing a selected groups of information and displaying them on precise charts. The complex system assumes simultaneous employing of various users including port management and port authorities. One of the planned users is patrol boat crew, which role is to be a mobile tool for waterways monitoring and should perform as on-scene sensor. The interface concept presented in the paper is based on ECDIS, as it was assumed, that the user on patrol boat is usually familiar with thus system. The goal of the research was to create interface project with the principles of UCD (User Centered Design) based on CHI (Computer-Human Interaction) approach. In the article the short functional analysis of standard ECDIS interface is presented. It is followed by comparison between its common users and the future users of GEO system with the emphasis on their requirements, expectations and demands. As a result a group of dedicated, user-orientated functions were agreed. A modification of ECDIS user interface is proposed in order to implement mentioned features.

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NIU, YUNYUN, K. G. SUBRAMANIAN, IBRAHIM VENKAT, and ROSNI ABDULLAH. "A TISSUE P SYSTEM BASED SOLUTION TO QUADRATIC ASSIGNMENT PROBLEM." International Journal of Foundations of Computer Science 23, no. 07 (November 2012): 1511–22. http://dx.doi.org/10.1142/s012905411240062x.

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The quadratic assignment problem (QAP) is one of the fundamental combinatorial optimization problems, which models many real-life problems. However, it is considered as one of the most difficult NP-hard problems, which means that no polynomial-time algorithm is known to solve this intractable problem effectively. Even small instances of QAP may require vast computation time. In this work, a uniform cellular solution to QAP is proposed in the framework of membrane computing by using a family of recognizer tissue P systems with cell division. In the design of the solution, we encode the given instances in binary notations. The paper can be considered as a contribution to the study of considering a binary encoding of the information in P systems.

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Marques, J. Alves, Nuno Guimarāes, and L. Pinto Simōes. "IMAGES: a user interface development system." Interacting with Computers 3, no. 2 (August 1991): 131–54. http://dx.doi.org/10.1016/0953-5438(91)90008-p.

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Aspnäs, M., R. J. R. Back, and T.-E. Malén. "Hathi-2 multiprocessor system." Microprocessors and Microsystems 14, no. 7 (September 1990): 457–66. http://dx.doi.org/10.1016/0141-9331(90)90024-p.

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Oleari, Claudio. "Corresponding color datasets and a chromatic adaptation model based on the OSA-UCS system." Journal of the Optical Society of America A 31, no. 7 (June 17, 2014): 1502. http://dx.doi.org/10.1364/josaa.31.001502.

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Helene, Schoemans, Kathy Goris, Raf Van Durm, Jasper Van Hoof, Hildegard T. Greinix, Daniel Wolff, Steven Z. Pavletic, et al. "Development and Preliminary Usability and Accuracy Testing of the EBMT Gvhd App to Support Graft Versus Host Disease Diagnosis and Scoring According to NIH Criteria, By the EBMT Complications and Quality of Life Working Party." Blood 126, no. 23 (December 3, 2015): 3151. http://dx.doi.org/10.1182/blood.v126.23.3151.3151.

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Abstract Introduction: Accurate diagnosis and severity scoring of acute and, in particular, chronic GVHD remains a challenge for clinical practice and for correct self-reporting of GVHD data to evaluate transplant outcomes. Perceived complexity and time investment issues limit the implementation of international standards and the recently updated NIH criteria for chronic GVHD. Here, we describe the development of the EBMT GVHD App, a computer/web-based algorithm-driven application to help physicians correctly diagnose and score severity of acute and chronic GVHD and improve the implementation of current standards in clinical practice and research. Methods: We applied a User Centered Design (UCD) process, through an iterative process between end-users and the development team to ensure that the App is user-friendly and efficient. A first EBMT GVHD App version (v0.0) tested an initial GVHD algorithm. An second improved prototype v1.0 was developed as a true web application (App) compatible with desktop computers and smartphones/tablets. V1.0 relies on two modules: a diagnostic module for NIH diagnostic, distinctive, common signs or proven evidence of GVHD (skin, nails, scalp/body hair, mouth, eyes, genitals, gastrointestinal tract, liver, lungs and muscles/joints), and a scoring moduleto assess severity of acute (Glucksberg and IBMTR criteria), chronic and overlap (NIH criteria) GVHD. The App v1.0 was tested by 28 hematology professionals (University Hospitals of Leuven, Belgium): 8 senior physicians, 8 junior physicians, 2 medical students and 10 data managers/research nurses; median experience in hematology 2.25 years, range 0-30, IQR 6.6, evenly distributed, by profession and seniority, to one of two groups (A and B). Usability of the App was determined for user experience and satisfaction. User experience was tested at baseline and end of study with the technology acceptance model (TAM), evaluating six Perceived Usefulness Statements rated on a 7-point Likert-like scale (1=extremely unlikely to 7=extremely likely). User satisfaction was evaluated by PSSUQ (Post-Study System Usability Questionnaire), which scores system usefulness, information quality and interface quality, on a 7-point Likert-like scale (1=strongly agree to 7=strongly disagree). App's accuracy relied on the proportion of correctly assessed clinical scenarios from 4 representative GVHD cases developed by a panel of GVHD experts as gold standard. In a quasi-experimental crossover design, professionals were invited to solve two cases either with standard paper tools or with the App, and later crossed over to use the other tool, both for the two other cases, as well as to solve again with the new tool their previous two cases. Comparisons were performed 'within groups' and 'between groups' (A vs B). Results: User experience and satisfaction were very good, with a median of 6 TAM points for user experience, and a median overall PSSUQ score of 2.2 for user satisfaction, 2.1 for System Use, 2.4 for Information Quality and 1.7 for Interface Quality. Users (70%) reported that they would be more likely to use the App on a desktop than on a mobile device. Accuracy results were only moderate with standard paper tools: 65% for diagnosis and 45% for scoring. The use of the App significantly increased diagnostic and scoring accuracy to 94% (+29%) and 88% (+43%), respectively (both p<0.001). The App also improved accuracy of individuals repeating the same clinical case (within groups) for diagnosis (+27%) and scoring (+42%), beyond a potential learning effect. From v1.0 results, an App v2.0 has been developed refining details in the algorithm, improving term description, adding a user's manual and the option of generating patient reports, which is now ready for further testing. Conclusions: The "EBMT GVHD App" is a first electronic tool to diagnose and score GVHD. Initial testing of v1.0 uniformly showed high scores for user experience and satisfaction, accurately reflected the subtle nuances of the NIH criteria, and improved significantly the accuracy of a diverse group of hematology professionals to diagnose and score severity of GVHD, compared to their practice with standard tools. Testing of v2.0 is underway to adapt layout and screen content and to address ambiguities of current guidelines. A larger study with a subsequent v3.0 is warranted in real life setting to evaluate macroscopic scalability. Disclosures Lee: Kadmon: Consultancy; Bristol-Myers Squibb: Consultancy.

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WADA, Tomotaka, Yuki NAKANISHI, Ryohta YAMAGUCHI, Kazushi FUJIMOTO, and Hiromi OKADA. "Pedestrian Oriented Vehicular Collision Avoidance Support System: P-VCASS." IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E93-A, no. 4 (2010): 679–88. http://dx.doi.org/10.1587/transfun.e93.a.679.

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Gao, Xi, and Hai Zhu Chen. "Signed Integer Arithmetic on Spiking Neural P System." Applied Mechanics and Materials 20-23 (January 2010): 779–84. http://dx.doi.org/10.4028/www.scientific.net/amm.20-23.779.

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Spiking neural P systems are a new computing model incorporating the ideas of spiking neurons into membrane computing. It has been shown that they have powerful computational capability and potential capability in solving computationally hard problems. The paper describes the implementation of signed integer arithmetic operations on spiking neural P system with the inputs and outputs encoded as appropriate sequences of spikes. The present work may be considered as the basis for more complex applications, maybe for constructing computer chips or for solving general mathematical problems.

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Kumar, P. Sreenivasa, M. Kishore Kumar, and A. Basu. "Parallel algorithms for sparse triangular system solution." Parallel Computing 19, no. 2 (February 1993): 187–96. http://dx.doi.org/10.1016/0167-8191(93)90048-p.

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Luan, Jing. "A Variant of P System with a Chain Structure." Journal of Information and Computational Science 10, no. 10 (July 1, 2013): 3189–97. http://dx.doi.org/10.12733/jics20101975.

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Elkhani, Naeimeh, Ravie Chandren Muniyandi, and Gexiang Zhang. "Multi-Objective Binary PSO with Kernel P System on GPU." International Journal of Computers Communications & Control 13, no. 3 (May 27, 2018): 323–36. http://dx.doi.org/10.15837/ijccc.2018.3.3282.

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Computational cost is a big challenge for almost all intelligent algorithms which are run on CPU. In this regard, our proposed kernel P system multi-objective binary particle swarm optimization feature selection and classification method should perform with an efficient time that we aimed to settle via using potentials of membrane computing in parallel processing and nondeterminism. Moreover, GPUs perform better with latency-tolerant, highly parallel and independent tasks. In this study, to meet all the potentials of a membrane-inspired model particularly parallelism and to improve the time cost, feature selection method implemented on GPU. The time cost of the proposed method on CPU, GPU and Multicore indicates a significant improvement via implementing method on GPU.

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Alzyoud, Faisal Yousef, Abdallah Altahan Alnuaimi, and Faiz Al Shrouf. "Adaptive Smart Traffic Accidents Management System." International Journal of Interactive Mobile Technologies (iJIM) 15, no. 14 (July 28, 2021): 72. http://dx.doi.org/10.3991/ijim.v15i14.19099.

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<p>The proliferation of smart devices, IoT applications and wireless communication technologies contribute in countries development, society’s security, cost reduction, and customer services satisfactions; since they are used in different aspects of our life. Traffic congestion and accidents are increased recently and reached critical limits, so these contribute in initiating sever problems for researchers, governments and industry over the last few decades. Traffic accidents have many defects relating to increase number of death, infrastructure distribution, and health injuries; therefore, there is a crucial need to develop and modify an approach that utilizes the new technology to limit and prevent the traffic accidents. Wireless sensors networks are developed to support smart solutions in smart cities like smart traffic, smart grid and others. In this research we developed a comprehensive approach to achieve the following three important goals in smart accident elimination. The first goal is to minimize the number of exchange information packets between sensors to save the battery life through developing and adapting clustering schema to minimize the number of exchanges information packets. The second goal is to calculate and determine the optimum route from accident location to the nearest rescue location by developing a dynamic routing schema that is calculated by the control station depending on a cost heuristics function. The third goal is to predicate the accident causes and minimize the probability of accidents occur using a warning message schema and drawing some obstacles on some routing paths. Cupcarbon simulator and MATLAB software tool are developed to simulate different scenarios in order to proof the research goals.</p>

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Frisco, Pierluigi. "The conformon-P system: a molecular and cell biology-inspired computability model." Theoretical Computer Science 312, no. 2-3 (January 2004): 295–319. http://dx.doi.org/10.1016/j.tcs.2003.09.008.

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