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Davilla, S. D., P. Ingram, A. LeFurgey, and M. K. Lamvik. "Simple multi-process data sharing with the VAX/VMS operation system." Journal of Electron Microscopy Technique 8, no. 2 (February 1988): 227–28. http://dx.doi.org/10.1002/jemt.1060080212.
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Hanisch, Robert J. "STSDAS: The Space Telescope Science Data Analysis System." Highlights of Astronomy 9 (1992): 489–91. http://dx.doi.org/10.1017/s153929960000962x.
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STSDAS is a system of some 750,000 lines of code and documentation designed for the calibration and analysis of data from the Hubble Space Telescope. At its inception in 1981, when it was known simply as ‘SDAS’, the system was dependent on the VAX VMS operating system and architecture and was limited in scope to HST data analysis, excluding calibration. As it was realized that astronomers would want to be able to do their own calibrations of HST data, and that it was not cost-effective, either for end-users or for the software development effort, to have a system dependent on a proprietary operating system, the scope and objectives of the system were modified. The most fundamental change was the decision to fully layer the STSDAS software on the Image Reduction and Analysis Facility -IRAF – from the National Optical Astronomy Observatories. For a review of the historical aspects of the development of STSDAS, please see Hanisch (1989).
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Rokosz, M. J., and B. E. Artz. "Development of Instrument Control Software for the SRS/300 Spectrometer on a VAX/730 Computer Running the VMS Operating System." Advances in X-ray Analysis 32 (1988): 121–29. http://dx.doi.org/10.1154/s0376030800020383.
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It Is not practical to connect each controllable function of a WDXRF (Wavelength Dispersive X-Ray Fluorescence) spectrometer separately to the laboratory computer. Therefore, a spectrometer controller is used to interface with the hardware control actuators which operate the selectable or settable components of the spectrometer system. The basic function of a controller is to receive sequences of orders from the computer and transmit the data which has been collected. More advanced controllers, such as the one used in the Siemens SRS-300 spectrometer, may perform many additional functions. In addition to handling spectrometer-to-lab computer communication, the SMP (Siemens Microprocessor controller) is capable of monitoring the state of the instrument, resolving conflicts in external or internal requests for action, and terminating spectrometer action which can be seen as hazardous or damaging to the instrument.
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Chadwick, K., R. Hollebeek, and P. K. Sinervo. "The organization and maintenance of the CDF offline code on IBM VM/CMS and DEC VAX/VMS operating systems." Computer Physics Communications 45, no. 1-3 (August 1987): 409–15. http://dx.doi.org/10.1016/0010-4655(87)90182-2.
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Gabe, E. J., Y. Le Page, J. P. Charland, F. L. Lee, and P. S. White. "NRCVAX – an interactive program system for structure analysis." Journal of Applied Crystallography 22, no. 4 (August 1, 1989): 384–87. http://dx.doi.org/10.1107/s0021889889003201.
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NRCVAX is a complete system of programs, covering all aspects of crystal structure analysis from data reduction to the presentation of results. The system, which is written in a `neutral' Fortran 77, presently exists in two forms. The first runs on a VAX computer under VMS, on an 80386 PC under UNIX and under IBM VM/CMS and MVS/TSO. The second is an adaptation which runs on PC-XT, AT, PS/2 and comparable microcomputers under MS-DOS. The two versions differ somewhat in structure, but very little in code, operation or functionality except for the graphics. The many options of the programs can be selected in a highly interactive manner and because of this the system is very flexible. Most options are assigned default values, however, and it is usually safe to run the routines with a minimum of user input using the defaults. The system will accept data from a wide variety of sources and has interface routines for several other systems. Graphics in the VAX/UNIX version are based on the widely available Tektronix 4000 series protocol, while the microcomputer version supports most common display adapters. It is also possible to prepare files for a variety of plotters, dot-matrix printers and laser printers. Source code is distributed and it should not be difficult to adapt the system to any computer with virtual memory and a Fortran 77 compiler.
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Prothero, W. A., W. J. Taylor, and J. A. Eickemeyer. "A fast, two-point, three-dimensional raytracing algorithm using a simple step search method." Bulletin of the Seismological Society of America 78, no. 3 (June 1, 1988): 1190–98. http://dx.doi.org/10.1785/bssa0780031190.
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Abstract The simplex method of function minimization is used to find the ray that follows the path of minimum time through an arbitrary three-dimensionally varying medium. The advantage of this method is that it is extremely fast, always converges, and lends itself to a variety of velocity parameterizations. The first step in the algorithm is to find the minimum time circular arc path between the source and receiver using an exhaustive search method. Then perturbations, consisting of a sum of N sine wave harmonics with their zero crossings at the endpoints, are made to the circular arc path. The simplex method searches for the amplitude coefficients that produce the path of least time. On a VAX-750 running the VMS operating system, the first arriving ray for a station receiver distance of 96 km is computed to an accuracy of 0.02 sec, computed in a southern California velocity structure using less than 26 sec of computer time. The required computer time decreases as the ray path distance decreases.
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Walsh, John F., and Josephine Colmenares. "Facilitating the Use of Sas under the VAX/VMS System." Perceptual and Motor Skills 72, no. 2 (April 1991): 489–90. http://dx.doi.org/10.2466/pms.1991.72.2.489.
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Smith, Douglas W. "A complete, yet flexible, system for DNA/protein sequence analysis using VAX/VMS computers." Bioinformatics 4, no. 1 (1988): 212. http://dx.doi.org/10.1093/bioinformatics/4.1.212.
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Paś, Jacek, Adam Rosiński, Patryk Wetoszka, Kamil Białek, Tomasz Klimczak, and Mirosław Siergiejczyk. "Assessment of the Impact of Emitted Radiated Interference Generated by a Selected Rail Traction Unit on the Operating Process of Trackside Video Monitoring Systems." Electronics 11, no. 16 (August 15, 2022): 2554. http://dx.doi.org/10.3390/electronics11162554.
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The article presents a method for assessing the impact of radiated electromagnetic interference generated by a selected rail traction unit on the operational process of trackside video monitoring systems (VMS). VMSs operated throughout an extensive railway area are responsible for the safety of people and property transport processes. Emissions of radiated electromagnetic interference generated in an unintended manner by traction vehicles within a railway line lead to interference in the VMS operating process. Based on the knowledge of actual VMS operating process data, spectral characteristics and values of individual components of disturbing signals occurring in the emissions of radiated electromagnetic interference, it is possible to determine the parameters of damage intensities for the devices and elements of this system. Using that data enables determining the VMS reliability parameters within its operating system, for an extensive railway area. The article’s authors first discussed the basic issues associated with VMS, followed by analysing the topic’s current status. They also presented issues related to measuring interference radiated within a rail area, developed a selected operational process model, and determined selected operational indicators for the structures in question. The paper ends with conclusions.
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Asuaje, Miguel, Julieth Zapata, and Wilmer Arcos. "Development of a Virtual Metering System Application for High Water Cut Wells with Electric Submersible Pumps (ESPS) – a Case Study for Quifa Field." E3S Web of Conferences 321 (2021): 02013. http://dx.doi.org/10.1051/e3sconf/202132102013.
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Well surveillance is a mandatory requirement for reservoir characterization and production optimization that every asset must aim for. To guarantee constant monitoring of a single well, installing conventional multi-phases flow meters systems is necessary. As an alternative way, this paper presents a Virtual Metering System (VMS) developed to estimate flow rates in oil wells with high water cut operating with electric submersible pumps as artificial lift systems. The VMS starts from a mathematical model based on production variables, well data, and pump performance curves to estimate fluids flow rates and water cut using a Newton Raphson Multivariate Method. The VMS was implemented in 11 wells in Quifa Field, Colombia. The VMS is constantly feeding by data from the PI System. The VMS results show a deviation of less than 3% in calculating the fluid flow rate and less than 5% in estimating the water cut.
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O'Keefe, Michael A. "A computer system for HREM image processing and simulation." Proceedings, annual meeting, Electron Microscopy Society of America 45 (August 1987): 364–65. http://dx.doi.org/10.1017/s0424820100126615.
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A facility for electron microscope image analysis and interpretation has been established at the National Center for Electron Microscopy (NCEM) as a support for the electron microscopes. The main component of the facility is a computer system designed to assist the experimenter in both “real time” and post-recording image analysis. Real-time includes operator-controlled enhancement of the video-rate TV signal coming from the microscope, and the presentation of diffractograms as required by the microscope operator. Post-recording analysis includes post-processing of the experimental image as well as image simulation from model structures. Our chosen system is based on two host computers (Fig. 1): one host controls the post-recording workstations and the other runs the real-time stations. MicroVAX II minicomputers running the VMS operating system were chosen for both the main and real time hosts because the VMS system is multi-user and has virtual memory capability; in addition, it is the operating system most familiar to outside users of the facility.
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Roy, Kallol Kumar, Nandini Joshi nee Jahagirdar, Murali Subbaiah, Sunesh Kumar Jain, J. B. Sharma, and Neeta Singh. "Randomized comparative study of conventional minilaparoscopy (5mm) versus modern minilaparoscopy (2.9mm) in patients of infertility." International Journal of Reproduction, Contraception, Obstetrics and Gynecology 6, no. 4 (March 30, 2017): 1539. http://dx.doi.org/10.18203/2320-1770.ijrcog20171424.
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Background: To compare diagnostic conventional minilaparoscopy (5mm) with diagnostic modern minilaparoscopy (2.9mm) in patients of infertility in terms of operating time, post-operative pain, hospital stay.Methods: A prospective randomized comparative study was done in a tertiary care centre involving eighty patients of infertility undergoing diagnostic laparoscopy. Diagnostic laparoscopy was done using 5mm laparoscope (Conventional minilaparoscope-Group I) in 40 patients and using 2.9mm laparoscope (Modern minilaparoscope-Group II) in 40 patients. Operating time was measured from the point of skin incision to closure, post op pain was assessed with VAS scoring system, total hours of hospital stay from shifting to day care recovery ward till discharge was noted.Results: Both conventional minilaroscope and modern minilaparoscopes were comparable to each other. Operating time in both groups was similar (7.7min in Group I vs 8.7min in Group II). In both groups, there was no statistically significant difference in post-operative pain as assessed by VAS scoring System (39 in Group I vs 38 in Group II had mild post-op pain and 1 in Group I vs 2 in Group II had moderate pain). The difference in duration of post-op hospital stay in both Group I and group II was not statistically significant (3.5 hours vs 3.3 hours).Conclusions: Both conventional minilaparoscopy (5mm laparoscope) and modern miniaparoscopy (2.9mm laparoscope) are comparable with respect operating time, post-op pain, hospital stay. Modern minilaparoscope is no better than conventional minilaparoscope.
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Zhang, Shuhui, Xiangxu Meng, Lianhai Wang, Lijuan Xu, and Xiaohui Han. "Secure Virtualization Environment Based on Advanced Memory Introspection." Security and Communication Networks 2018 (2018): 1–16. http://dx.doi.org/10.1155/2018/9410278.
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Most existing virtual machine introspection (VMI) technologies analyze the status of a target virtual machine under the assumption that the operating system (OS) version and kernel structure information are known at the hypervisor level. In this paper, we propose a model of virtual machine (VM) security monitoring based on memory introspection. Using a hardware-based approach to acquire the physical memory of the host machine in real time, the security of the host machine and VM can be diagnosed. Furthermore, a novel approach for VM memory forensics based on the virtual machine control structure (VMCS) is put forward. By analyzing the memory of the host machine, the running VMs can be detected and their high-level semantic information can be reconstructed. Then, malicious activity in the VMs can be identified in a timely manner. Moreover, by mutually analyzing the memory content of the host machine and VMs, VM escape may be detected. Compared with previous memory introspection technologies, our solution can automatically reconstruct the comprehensive running state of a target VM without any prior knowledge and is strongly resistant to attacks with high reliability. We developed a prototype system called the VEDefender. Experimental results indicate that our system can handle the VMs of mainstream Linux and Windows OS versions with high efficiency and does not influence the performance of the host machine and VMs.
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Messerschmidt, A., M. Schneider, and R. Huber. "ABSCOR: a scaling and absorption correction program for the FAST area detector diffractometer." Journal of Applied Crystallography 23, no. 5 (October 1, 1990): 436–39. http://dx.doi.org/10.1107/s0021889890005301.
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A Fortran computer program is described which carries out scaling and absorption corrections and a post-correction of the non-uniformity of response of the detector for FAST area detector diffractometer data. The program runs under the VMS operating system.
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P. K., Hota, and Mahesh S. V. "Efficacy of prolene hernia system in comparison to Lichtenstein mesh repair." International Surgery Journal 4, no. 2 (January 25, 2017): 619. http://dx.doi.org/10.18203/2349-2902.isj20170202.
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Background: Inguinal hernia repairs consume an important part of health care resources because of the high incidence of the problem. It is estimated that 20 millions of inguinal hernia repairs are performed globally every year. Every recurrence after a primary repair will add an extra cost to health care economics. Moreover, secondary or tertiary operations after previous repairs carry higher risk of re-recurrence and specific complications like testicular atrophy. Therefore, every surgeon should know and perform a current repair method successfully in his/her daily practice. The aim was to compare the efficacy of prolene hernia system with that of lichtenstein mesh repair in terms of early and late complications, operating time, time of return to work, chronic pain and recurrence.Methods: 200 patients reporting and found eligible for the study were selected. They were divided into two groups. One group of 100 patients underwent the prolene hernia system type of surgery. Other group of 100 patients was operated by using Lichtenstein mesh repair. VAS score was used to assess the pain among the patients post operatively. All patients of both the groups were followed for a period of 10 years from August 2006 yearly to assess the occurrence of complications and recurrence among them.Results: It was found that mean duration of surgery was lesser in PHS group of 25 minutes compared to 35 minutes in other group. On comparison of post-operative pain assessed by VAS score, it was found that the PHS group patients experienced only mild pain compared to mild to moderate pain in other group patients. Patient compliance was excellent in the PHS group compared to the other group. Patients in the PHS group were able to return to their work within 15 days compared to 30 days in other group.Conclusions: Reports of this device (PHS) are encouraging, operating time is shorter and there is quick recovery. PHS provides all advantages of a tension - free repair, provides a stable anterior repair with added benefits of a posterior as well as plug repair. The high risk group of patient may be a good target as superior primary repair.
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Hainfeld, James F., and Keith L. Monson. "An integrated computer system for STEM data acquisition and processing." Proceedings, annual meeting, Electron Microscopy Society of America 44 (August 1986): 874–75. http://dx.doi.org/10.1017/s0424820100145716.
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Several laboratories have reported digital data acquisition and control systems for electron microscopes. The considerations involved in implementation of such a system have been reviewed. All of these systems have used a relatively small minicomputer, either as a stand-alone, or as a satellite processor linked to a larger computer, so as not to burden the large host with the mundane task of operating a microscope. In recent years however, hardware costs have decreased sufficiently that many laboratories have their own superminicomputer (e.g., one of the Digital VAX series), or share one within a small group of users.
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Chandrakala, N., and B. Thirumala Rao. "Migration of Virtual Machine to improve the Security of Cloud Computing." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 1 (February 1, 2018): 210. http://dx.doi.org/10.11591/ijece.v8i1.pp210-219.
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Cloud services help individuals and organization to use data that are managed by third parties or another person at remote locations. With the increase in the development of cloud computing environment, the security has become the major concern that has been raised more consistently in order to move data and applications to the cloud as individuals do not trust the third party cloud computing providers with their private and most sensitive data and information. This paper presents, the migration of virtual machine to improve the security in cloud computing. Virtual machine (VM) is an emulation of a particular computer system. In cloud computing, virtual machine migration is a useful tool for migrating operating system instances across multiple physical machines. It is used to load balancing, fault management, low-level system maintenance and reduce energy consumption. Virtual machine (VM) migration is a powerful management technique that gives data center operators the ability to adapt the placement of VMs in order to better satisfy performance objectives, improve resource utilization and communication locality, achieve fault tolerance, reduce energy consumption, and facilitate system maintenance activities. In the migration based security approach, proposed the placement of VMs can make enormous difference in terms of security levels. On the bases of survivability analysis of VMs and Discrete Time Markov Chain (DTMC) analysis, we design an algorithm that generates a secure placement arrangement that the guest VMs can moves before succeeds the attack.
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MANARIS, BILL Z. "AN ENGINEERING ENVIRONMENT FOR NATURAL LANGUAGE INTERFACES TO INTERACTIVE COMPUTER SYSTEMS." International Journal on Artificial Intelligence Tools 03, no. 04 (December 1994): 557–79. http://dx.doi.org/10.1142/s0218213094000303.
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This paper discusses the development of natural language interfaces to interactive computer systems using the NALIGE user interface management system. The task of engineering such interfaces is reduced to producing a set of well-formed specifications which describe lexical, syntactic, semantic, and pragmatic aspects of the selected application domain. These specifications are converted by NALIGE to an autonomous natural language interface that exhibits the prescribed linguistic and functional behavior. Development of several applications is presented to demonstrate how NALIGE and the associated development methodology may facilitate the design and implementation of practical natural language interfaces. This includes a natural language interface to Unix and its subsequent porting to MS-DOS, VAX/VMS, and VM/CMS; a natural language interface for Internet navigation and resource location; a natural language interface for text pattern matching; a natural language interface for text editing; and a natural language interface for electronic mail management. Additionally, design issues and considerations are identified/addressed, such as reuse and portability, content coupling, morphological processing, scalability, and habitability.
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Garcia-de-Vinuesa, Alfredo, Iván Sola, Federico Quattrocchi, Francesc Maynou, and Montserrat Demes. "Linking trawl fleet dynamics and the spatial distribution of exploited species can help to avoid unwanted catches: the case of the NW Mediterranean fishing grounds." Scientia Marina 82, S1 (December 20, 2018): 165. http://dx.doi.org/10.3989/scimar.04755.17a.
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With the full implementation of the landing obligation on 1 January 2019, In European waters it will become mandatory for the trawling fleet to land at port all catches of certain species because, according to Article 15 of the new European Common Fisheries Policy, the species subject to the minimum conservation reference size (MCRS) cannot be discarded. Additionally, since 2005, trawlers over 15 m in length are required to carry an onboard vessel monitoring system (VMS), which generates information on fleet dynamics. The objective of this work was to provide a tool for avoiding unwanted catches by integrating the catch study of trawlers operating in the port of Blanes together with VMS data. To achieve this objective, the catches of 40 hauls were monitored, sampled and analysed together with VMS data for the years 2012-2014 integrated in a geographical information system. The results show that specimens below the MCRS were often captured in crinoid aggregation habitats, bottoms with maërl and muddy bottoms that were identified as nursery habitats of commercial species, e.g. Merluccius merluccius, Pagellus spp. and Mullus spp. VMS data showed considerable fishing pressure on areas with maërl and muddy habitats during the recruitment periods of these and other commercially relevant species. Implementing spatial or seasonal closures in habitats where species regulated by the MCRS are subject to catches could be a useful tool for preventing unwanted catches.
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Gaonkar, Nishant, Ravindra B. Gunaki, and Santosh Takale. "Assessment of outcome of posterior dynamic stabilization system in degenerative lumbar disease." International journal of health sciences 6, S1 (March 14, 2022): 522–28. http://dx.doi.org/10.53730/ijhs.v6ns1.4788.
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Background: Degenerative disc disease is a leading cause of chronic back pain in the aging population in the world. The present study was conducted to assess outcome of posterior dynamic stabilization system in degenerative lumbar diseases. Materials & Methods: 78 patients of degenerative lumbar diseases of both genders were divided into 2 groups of 39 each. Group I patients underwent decompression and implantation of Dynesys and group II patients underwent PLIF. ODI, VAS scores for back pain and leg pain, operation time, blood loss, and complications were compared in both groups. Results: There were 25 males and 14 females in group I and 20 males and 19 females in group II. The operative time (min) was 136.2 in group I and 172.4 in group II. Blood loss (ml) was 362.4 in group I and 438.2 in group II. Complications were dural tear seen 2 in group II, wound infection was seen in 1 in group II, screw loosening was 1 in group I and 2 in group II and back & leg pain seen 3 in group I and 4 in group II. The mean ODI was 32.5 and 38.5, VAS back pain was 2.6 and 3.12.
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Wu, Zi-xiang, Geng Cui, Wei Lei, Yong Fan, Shi-yong Wan, Zhen-sheng Ma, and Hong-xun Sang. "Application of an expandable pedicle screw in the severe osteoporotic spine: A preliminary study." Clinical & Investigative Medicine 33, no. 6 (December 1, 2010): 368. http://dx.doi.org/10.25011/cim.v33i6.14587.
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Purpose. To investigate the clinical abstractnd radiographic outcome of multi-axial expandable pedicle screws (MEPS) in patients with osteoporosis. Methods. One hundred and twenty-five consecutive patients received MEPS from the UPASS spinal fixation system to obtain thorocolumbar or lumbosacral stabilization. All patients underwent bone mineral density (BMD) scans. The indications for use of the MEPS were spinal diseases with severe osteoporosis (degenerative diseases 46 cases, compression fractures 28 cases, lumbar tuberculosis 27 cases and revision spine surgery 24 cases). The pre-operative and three months post-operative functional evaluations were graded with JOA and VAS scoring system. One week, six months and 12 months after surgery, plain film and three-dimensional CT scans were obtained to evaluate the spinal fusion and fixation effectiveness of MEPS. Results The mean follow-up period was 18 months (ranged from 6 to 33 months). All patients suffered from severely osteoporosis with a decrease of 25.3% in BMD. The pre-operative JOA and VAS scores were 11.3±3.0 and 6.7±1.8 mm, respectively. Three months after operation, the JOA and VAS scores were 25.2±2.0 and 2.3±1.7 mm. The recovery rate was 78.1±11.5％ and the clinical results were satisfying. There were no instances of screw loosening or pullout of the MEPS and the screw-bone interface was excellent. The radiographic results showed that bone healing, both around the screws and inter-vertebral, was achieved. Conclusion In osteoporosis spine surgery, excellent bone-screw interface and fixation strength can be achieved by using MEPS. MEPS are a novel approach to increase the pedicle screw fixation in osteoporotic and revision spine surgeries.
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Kindrachuk, MN, A. Persad, E. Noyes, AS Wu, and DR Fourney. "P.133 Minimally invasive MetrX microdiskectomy for lumbar disc herniation: review of long-term outcomes." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 46, s1 (June 2019): S47. http://dx.doi.org/10.1017/cjn.2019.222.
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Background: Lumbar microdiskectomy is amongst the most common neurosurgical techniques. In Saskatoon, minimally invasive microdiskectomy using the MetrX tubular retractor system has become a routinely performed procedure. While the outcomes of microdiskectomy are known to be similar to open technique, long term outcomes have not been reported. Methods: We performed a retrospective study of 160 minimally invasive microdiskectomies. We excluded subjects with cauda equina syndrome, redo surgery, fusions, and multi-level decompressions. We used one-way ANOVA to compare VAS, ODI, SF36, and EQ5D scores at pre-operative, 6-week postoperative, and long-term timepoints. Results: The mean pre-operative back pain VAS score was 6.23+/−2.63, 6-week post-operative follow-up VAS was 3.21+/−2.49, and long-term follow-up VAS was 2.56+/−2.45. The mean preoperative leg pain VAS score was 7.66+/−1.99, 6-week follow-up VAS was 3.56+/−2.79, final follow-up VAS was 2.20+/−2.57. The mean preoperative ODI score was 60.41+/−13.97; falling to 32.54+/−20.57 at 6-week follow up, and further to 24.50+/−20.97 at long term follow up. The mean baseline EQ5D quality of life score was 46.4+/−18.1, 68.9+/−20.2 at 6-week follow up and 69.3+/−20.3 at final review. Data reached statistical significance. Conclusions: We report good outcomes for minimally invasive microdiskectomy that are as durable as published results using open technique.
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Ruff, Matt, and Nicklaus A. Giacobe. "Leveraging Browser-Based Virtual Machines to Teach Operating System Fundamentals." Journal of The Colloquium for Information Systems Security Education 9, no. 1 (March 8, 2022): 7. http://dx.doi.org/10.53735/cisse.v9i1.150.
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In this paper, we identify challenges in delivering cybersecurity labs, including the overhead costs of delivering virtual machines to students. We propose instead to use JavaScript driven Browser-Based Virtual Machines (BBVMs) to overcome the challenges of Type I and II hypervisors, as well as vendor- specific cybersecurity lab ranges. BBVMs deliver configured VMs at lower cost to the student’s web browser and are much easier for students to use. BBVMs require no hardware or infrastructure for students besides an Internet-connected device. As such, labs delivery via BBVMs can be run on mobile phones, tablets, or computers with limited resources. With this in mind, the authors detail BBVM implementation for cybersecurity labs. With very little physical infrastructure, programming, and systems administration, an educational institution at any level may implement a cybersecurity lab in such an environment. Our examples focus on addressing learning the Linux command line, introducing different Linux commands, and deepen student understanding of the Linux operating system itself. We combine BBVMs with previous work to address configuration, repeatability, assessment, academic integrity/cheating, and other similar constraints using our polymorphic configuration methodology called PolyLab. Lastly, we include a step-by-step procedure to implement BBVMs and show use-cases for cybersecurity education.
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Peppin, William A., and Walter F. Nicks. "Real-Time Analog and Digital Data Acquisition Through CUSP." Seismological Research Letters 63, no. 2 (April 1, 1992): 181–89. http://dx.doi.org/10.1785/gssrl.63.2.181.
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Abstract The University of Nevada Seismological Laboratory operates an array of 60 analog short-period and 10 three-component digital telemetered seismic stations, 90 data traces in all, in Nevada and eastern California. Formerly, the seismic data streams were recorded and processed on three separate computers running disparate software and writing incompatible data formats which made access to the digital data quite cumbersome. These systems were recently replaced by a single computer system, a MicroVAX II running VAX/VMS, together with Generic CUSP (Caltech -U.S.G.S. Seismic Processing System), a controlled software system from the U.S.G.S. in Menlo Park. Telemetered digital data are stored simultaneously in two ways, unique to this network. First, these digital data are brought asynchronously into the computer using a standard direct-memory access interface and recorded continuously on an Exabyte 8-mm helical-scan tapedrive. Second, the digital data are passed through a D to A converter and intermixed with the incoming analog data stream used for routine network processing. This analog data stream is then itself digitized and presented to the computer. In this way, calibrated digital waveforms are available in the routine data processing stream, now entirely comprised of digital waveforms, used to locate earthquakes. At the same time, this allows easy access to these data in research applications involving the processing of seismic waveforms.
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Wisse, E., A. Geerts, and R. B. De Zanger. "Routine Digital Processing of Microscope Images." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 1 (August 12, 1990): 550–51. http://dx.doi.org/10.1017/s0424820100181506.
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The slowscan and TV signal of the Philips SEM 505 and the signal of a TV camera attached to a Leitz fluorescent microscope, were digitized by the data acquisition processor of a Masscomp 5520S computer, which is based on a 16.7 MHz 68020 CPU with 10 Mb RAM memory, a graphics processor with two frame buffers for images with 8 bit / 256 grey values, a high definition (HD) monitor (910 × 1150), two hard disks (70 and 663 Mb) and a 60 Mb tape drive. The system is equipped with Imaging Technology video digitizing boards: analog I/O, an ALU, and two memory mapped frame buffers for TV images of the IP 512 series. The Masscomp computer has an ethernet connection to other computers, such as a Vax PDP 11/785, and a Sun 368i with a 327 Mb hard disk and a SCSI interface to an Exabyte 2.3 Gb helical scan tape drive. The operating system for these computers is based on different versions of Unix, such as RTU 4.1 (including NFS) on the acquisition computer, bsd 4.3 for the Vax, and Sun OS 4.0.1 for the Sun (with NFS).
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Wakana, Keiichiro, Yukifumi Kimura, Yukie Nitta, and Toshiaki Fujisawa. "The Effect of Music on Preoperative Anxiety in an Operating Room: a Single-Blind Randomized Controlled Trial." Anesthesia Progress 69, no. 1 (April 1, 2022): 24–30. http://dx.doi.org/10.2344/anpr-68-03-06.
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Objective: This study aimed to determine the effect of music as an intervention on relieving preoperative anxiety in patients with dental fear in an outpatient operating room (OR) before intravenous sedation (IVS). Methods: Sixty adult patients with dental fear undergoing dental surgery under IVS were divided into 2 groups (music and nonmusic). The music group listened to music in the waiting room until immediately before the initiation of IVS whereas the nonmusic group did not. Patient anxiety was objectively measured using heart rate variability (HRV) analysis to assess the low-frequency/high-frequency ratio as an indication of sympathetic or parasympathetic nervous system activity. Subjective preoperative anxiety was evaluated with a visual analog scale (VAS). Results: Heart rate variability analysis failed to demonstrate any significant difference between the 2 groups from baseline to start of IVS. There were also no significant differences between the 2 groups regarding changes in VAS scores. Conclusion: Music intervention was not found to reduce preoperative anxiety in patients with dental fear before IVS in the dental outpatient OR as determined by HRV analysis or VAS scores.
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Oikonomidis, Stavros, Ahmad Alabsi, Ghazi Ashqar, Markus Graf, and Rolf Sobottke. "Intramedullary Stabilization of Pubic Ramus Fractures in Elderly Patients With a Photodynamic Bone Stabilization System (IlluminOss)." Geriatric Orthopaedic Surgery & Rehabilitation 10 (January 1, 2019): 215145931882490. http://dx.doi.org/10.1177/2151459318824904.
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Introduction: A photodynamic bone stabilization system (PBSS) is a percutaneous operating method that provides intramedullary stabilization. The purpose of the study was to assess the clinical and radiological outcome after treatment of pubic ramus fractures with the PBSS. Materials and Methods: In a retrospective study, patients with osteoporotic pubic ramus fractures were included. The patients were treated with the PBSS in a percutaneous method. In the routine follow-up examination, pain was measured with the visual analog scale (VAS) and the type of mobilization was verified. Computer tomography of the pelvis was carried out in the follow-up examination (mean of 7.5 months after surgery) to investigate bone healing. Results: A total of 32 patients (25 females and 7 males) were included in the study. The average hospital stay was 16.5 ± 7.9 days (range: 5-37 days) and the mean operation time was 116.8 ± 47.1 minutes (range: 33-255 minutes). Two cases of wound infections and 1 case of misplacement of the PBSS implant with revision surgery have been documented. The mean VAS score for pelvic/hip pain at the day of inpatient discharge was 4.4 ± 1.4 (range: 2-7). A total of 25 patients could attend the follow-up examination 7.5 ± 1.7 months (range: 6-14) after the procedure, reporting a mean VAS for pelvic/hip pain of 3.0 ± 2.2 (range: 0-8). A total of 11 patients could walk without an orthopedic walking device, 7 patients needed underarm crutches, 6 patients used a walker-rollator, and 1 patient was immobilized. Consolidated pubis ramus fractures were described in 24 (96%) cases. Discussion: The results of our study reveal adequate clinical and radiological outcomes after treatment of osteoporotic pubic ramus fractures with the PBSS. This is the first study investigating the outcome after treating pubic ramus fractures with the PBSS. Conclusion: Based on our findings, the PBSS is an alternative to known techniques for the stabilization of the pubic ramus.
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Okabe, Satoshi, Michihiro Nagao, Takeshi Karino, Satoshi Watanabe, Tomohiro Adachi, Hirohiko Shimizu, and Mitsuhiro Shibayama. "Upgrade of the 32 m small-angle neutron scattering instrument SANS-U." Journal of Applied Crystallography 38, no. 6 (November 12, 2005): 1035–37. http://dx.doi.org/10.1107/s0021889805029201.
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The small-angle neutron scattering instrument, SANS-U, owned by the Institute for Solid State Physics, The University of Tokyo, has been upgraded. The SANS-U is a 32 m SANS instrument installed in 1991 at the guide hall of the JRR-3M research reactor of the Japan Atomic Energy Research Institute, and has been serving for inter-university cooperative research use since 1993. The major upgrades include (i) replacement of the two-dimensional area detector by a multi-wire type position-sensitive proportional counter, (ii) renewal of the operating system from a VAX and sequencers to an integrated PXI system controlled byLabVIEW-RTsoftware, (iii) a focusing collimation system, and (iv) a variety of accessory equipment. These upgrades provide a wide dynamic range of neutron counting, user-friendly operation and real-time circular averaging of two-dimensional data.
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Lee, Kyung Tai, Jun Beom Kim, Ki Won Young, Young Uk Park, Jin Su Kim, and Hyuk Jegal. "Long-Term Results of Neurectomy in the Treatment of Morton’s Neuroma." Foot & Ankle Specialist 4, no. 6 (December 2011): 349–53. http://dx.doi.org/10.1177/1938640011428510.
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Purpose. The objective of this retrospective study was to evaluate the long-term follow-up results of neurectomy clinical outcomes and complications in the treatment of Morton’s neuroma. Materials and methods. A total of 19 patients (19 different feet) were treated for Morton’s neuroma by excision of the interdigital nerve at our institute between May 1997 and May 1999. Thirteen (13 feet) of them were followed up. The 13 patients were female and had an average age of 43 years (range 34-54 years) at the time of the operation. The patients were followed-up for a mean of 10.5 years (range 10.0-12.2 years) and scored using the American Orthopaedic Foot & Ankle Society (AOFAS) forefoot scoring system and Visual Analogue Scale (VAS) score. Subjective satisfaction was evaluated at the final follow-up. Results. Eight patients scored more than 90 on the AOFAS forefoot scoring system. The VAS score was improved in all patients. The mean preoperative VAS score was 8.6 ± 0.8 cm (7-10) and the mean follow-up VAS score was 2.4 ± 1.8cm (0-6), which indicated no significant difference (P > .05). The final follow-up satisfaction results indicated that 4 patients were completely satisfied with the operation, 4 were satisfied with minor reservations, 5 were satisfied with major reservations, and no patient was unsatisfied. Neurectomy to treat Morton’s neuroma had a good satisfaction rate (61%). Eleven of the patients complained of numbness on the plantar aspect of the foot adjacent to the interspace, and 2 of these 11 patients complained of disability induced by severe numbness. There was a complaint of residual pain by 1 patient. There were no skin problems on the operation lesions. Conclusion. The long-term results of neurectomy clinical outcomes in Morton’s neuroma are slightly worse than the short- and mid-term results. Levels of Evidence: Therapeutic, Level IV, Retrospective case series
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Panizzon, Guilherme, Joao Henrique Faes Battisti, Guilherme Piegas Koslovski, Maurício Aronne Pillon, and Charles Christian Miers. "A Taxonomy of container security on computational clouds: concerns and solutions." Revista de Informática Teórica e Aplicada 26, no. 1 (April 14, 2019): 47. http://dx.doi.org/10.22456/2175-2745.86196.
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VirtualizationincloudcomputinghasbeenusedincombinationwithenvironmentsPlatformas a Service (PaaS) and Infrastructure as a Service (IaaS) in order to provide performance, isolation, and scalability. However, containers and virtual machines (VMs) are susceptible to the vulnerabilities present in the core of operating system as well as container solutions, which are a risk for information and service operation of all entities sharing a same host. The safety recommendation guides aims to mitigate the security in this scenario, but the selection of containerization solutions taking into account security requirements is a complex task. Thus, we propose a security taxonomy focused on containers to cloud computing in order to assist the classification and evaluation containers security mechanisms and solutions.
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Xu, Qingqing, Kun Du, Ming Zheng, Su Duan, Shuangshuang Jia, Hui Chen, Xiangdong Wang, and Luo Zhang. "Application of Clinical Scores in the Differential Diagnosis of Chronic Rhinosinusitis With Nasal Polyps in a Chinese Population." American Journal of Rhinology & Allergy 34, no. 3 (January 28, 2020): 401–8. http://dx.doi.org/10.1177/1945892420901996.
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Background Eosinophilic (Eos) and non-eosinophilic (non-Eos) chronic rhinosinusitis with nasal polyps (CRSwNP) react differently to clinical treatment, with eosinophilic chronic rhinosinusitis with nasal polyps (Eos CRSwNP) being more likely to recur after surgery. Objective To explore the clinical value of the visual analog scale (VAS), nasal endoscopy score (Lund–Kennedy, L–K), computed tomography (CT) score (Lund–Mackay scoring system, L–M), and blood Eos percentage in the differential diagnosis of Eos CRSwNP and non-Eos CRSwNP. Methods Ninety-nine patients with CRSwNP were enrolled in this study and assigned to 2 groups (Eos CRSwNP and non-Eos CRSwNP). The blood Eos percentage and VAS, L–K, and L–M scores in the 2 groups of patients were compared. A receiver operating characteristic (ROC) was used to assess the usefulness of VAS, L–K, and L–M scores for differentiating Eos CRSwNP and non-Eos CRSwNP. Results There were significantly differences between the Eos CRSwNP group and non-Eos CRSwNP group in the following scores: blood Eos percentage, mean VAS score, olfaction/VAS, general discomfort/L–K, edema score/L–K, olfactory cleft (OC) score via endoscopy, mean L–M score, anteriorethmoid sinus score, posterior ethmoid sinus score, sphenoid sinus score, frontal sinus score, and OC score via CT. An ROC analysis showed that blood Eos percentage had the highest area under the ROC curve (AUC) value (0.749); however, several other scores (olfaction score/VAS, edema score/L–K, and mean L–M score) also had high AUC values. The combination of olfaction score/VAS and blood Eos percentage had the highest clinical convenience score as well as high sensitivity and specificity. A combination of cutoff values for the 2 predictors (blood Eos percentage ≥3.85%, olfaction score/VAS score ≥3) showed a sensitivity of 75.5% and a specificity of 78.0%. Conclusion The olfaction score/VAS score and the blood Eos percentage can be combined to differentiate Eos CRSwNP from non-Eos CRSwNP in a Chinese population.
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Chew, Lan-Sim, Yee-Ling Yeo, Chee-Tao Chang, Chii-Chii Chew, Doris George, and Philip Rajan. "Satisfaction among patients and caregivers receiving value-added services during the COVID-19 pandemic outbreak in a tertiary hospital in the Perak state of Malaysia." Journal of Pharmaceutical Health Services Research 12, no. 4 (October 23, 2021): 477–84. http://dx.doi.org/10.1093/jphsr/rmab057.
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Abstract Objectives Patient satisfaction was used as an indicator of service quality in the public hospitals. The pharmacy value-added services (VAS) were intensified after the COVID-19 outbreak, and evaluation of user’s satisfaction was important for service improvement. Methods This was a single-centre, cross-sectional, web-based study in the outpatient pharmacy in a tertiary hospital in the Perak state of Malaysia. Patients and caregivers aged 18 years and above, received at least one prescription refill using the pharmacy VAS from April to September 2020, were included. The questionnaire was adapted from a validated tool, underwent face and content validation before dissemination. The link was disseminated to the targeted population through short messages service (SMS). Key findings Out of 1200 invited people, 303 agreed to participate. Majority of the respondents were male (160, 52.8%), Chinese (156, 51.5%), with tertiary education (201, 66.3%) and retiree (112, 37.0%). Out of a maximum score of 5, the overall mean satisfaction score was 4.42 (SD: 0.55). The respondents were most agreeable to time-saving benefits of the pharmacy VAS (4.56 ± 0.63). Majority of the respondents felt that pharmacy VAS had made their life easier (290, 95.7%) and planned to recommend the pharmacy VAS to others (292, 96.4%) Respondents aged more than 60 (versus age 18–35, β = 2.375, P < 0.001) and those who used drive-through service (versus SPUB, β = 2.272, P = 0.001) reported higher satisfaction scores. Several suggestions were made for service improvement, including longer operating hours (18, 6.0%), upgraded communication system (9, 3.0%), smoother registration process (9, 3.0%), more polite staff (9, 3.0%), selection of preferred postage delivery time (6, 2.0%) and promotion of VAS (4, 1.3%) Conclusions Majority of the respondents were highly satisfied towards the pharmacy VAS. Future studies should compare the satisfaction of VAS with traditional counter service to compare the level and factors that contributed to the users’ satisfaction.
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Ismail, Shahmizan, and S. Z. Md Dawal. "Ergonomics in Traffic Control and Surveillance System for Expressway: Malaysia Experience." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 44, no. 22 (July 2000): 534–36. http://dx.doi.org/10.1177/154193120004402209.
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There are close to a dozen toll expressway in Malaysia built by the private sectors and a few more in the list waiting to be constructed. The purpose is basically to provide a better alternative to the one provided by the government in terms of smooth traffic flow, less congestion and accident and at the same time to help spur the economic activities that connecting major cities through out the nation. Surprisingly only three expressway operators thus far that have put the traffic control and surveillance systems (TCSS) in place. TCSS is basically a supporting system to aid the expressway operators in running and operating the expressway as well as in providing assistance to the users a smooth and comfortable journey. Following to the above matter an ergonomics study is carried out to confirm the specification on design aspects. The studies will include the rest and service area (RSA), emergency telephone (ET) system and variable message sign (VMS). Basically the design at present is based on anthropometrics data based on Malaysian population.
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Oyama, Tetsushi, Kanichiro Wada, Kazushige Koyama, Gentaro Kumagai, Sunao Tanaka, Toru Asari, Atsushi Imai, et al. "Relationship between the cross-sectional area of the lumbar dural sac and lower urinary tract symptoms: A population-based cross-sectional study." PLOS ONE 17, no. 8 (August 11, 2022): e0271479. http://dx.doi.org/10.1371/journal.pone.0271479.
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This study aimed to investigate the relationship between the cross-sectional area of the dural sac (DCSA) and lower urinary tract symptoms (LUTS). This study included 270 Japanese participants from a community health check-up in 2016. Overactive bladder (OAB) was diagnosed during the assessment of LUTS. The smallest DCSA of each participant was defined as the minimum DCSA (mDCSA). The cutoff size of the mDCSA in OAB was evaluated using receiver operating characteristic analysis. Multiple logistic regression analyses were performed to identify the independent risk factors for OAB, and a scoring system was developed for estimating these. The prevalence of OAB was 11.1%. Age and low back pain visual analogue scale (LBP VAS) scores were significantly higher, and the mean mDCSA was significantly lower in participants with OAB than in those without. The cutoff size of mDCSA in OAB was 69 mm2. There were significant correlations between OAB and age, LBP VAS score, and mDCSA<70 mm2. Lumbar spinal stenosis (LSS) should be considered a cause of LUTS when mDCSA is <69 mm2. Assessing the mDCSA with age and LBP VAS score was more valuable in detecting LUTS in LSS than the mDCSA alone.
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Han, Hyung Joon, Sae Byeol Choi, Wan Bae Kim, Jin-Suk Lee, Yoon Jung Boo, Tae Jin Song, Sung Ock Suh, and Sang Yong Choi. "Surgical Stress Response and Clinical Outcomes of Single Port Laparoscopic Cholecystectomy: Prospective Nonrandomized Study." American Surgeon 78, no. 4 (April 2012): 485–91. http://dx.doi.org/10.1177/000313481207800443.
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The levels of interleukin-6 (IL-6) are proportionate to injury; it is the most commonly used quantitative marker in surgical studies. Cytokines and the acute-phase response play an important role in controlling the human immune system. The objective of this study was to compare the systemic acute cytokine response and clinical outcomes of conventional laparoscopic and single port laparoscopic cholecystectomy. We compared patients who underwent single port laparoscopic cholecystectomy (the single port group) with patients who underwent conventional laparoscopic cholecystectomy (the conventional group) according to the clinical variables, IL-6, leukocyte subpopulations, and visual analog scale (VAS) pain score. The mean age in the single port group was significantly younger ( P = 0.010) and the mean operation time in the conventional group was significantly shorter ( P = 0.002). Postoperative 4-hour VAS pain score was slightly worse in the single port laparoscopic cholecystectomy group, but was not significantly different. We found no difference in clinical outcomes, the level of serum IL-6, C-reactive protein, leukocyte subpopulations, and complications between the two groups. Stress response in single port laparoscopic cholecystectomy is equal to conventional surgery. Postoperative 4-hour VAS pain score was slightly worse and the operation time is significantly longer in the single port laparoscopic cholecystectomy group.
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De Meurechy, Nikolas K. G., Carlos E. Zaror, and Maurice Y. Mommaerts. "Total Temporomandibular Joint Replacement: Stick to Stock or Optimization by Customization?" Craniomaxillofacial Trauma & Reconstruction 13, no. 1 (February 27, 2020): 59–70. http://dx.doi.org/10.1177/1943387520904874.
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Purpose: This article aims to compare the difference in postoperative results in patients treated with either a patient-specific (PSI) or a stock temporomandibular total joint replacement system. Materials and Methods: The investigators performed a systematic review concerning postoperative results after placement of either a stock total joint replacement system or a PSI. PubMed Central, Web of Science, Cochrane Library Plus, Wiley Online Library, and EMBASE were used to conduct this search. All articles up to August 15, 2018, were scrutinized. All included articles were nonrandomized cohort studies. Maximal mouth opening (MMO) and Visual Analog Scale (VAS) scores for pain and diet before and after surgery were evaluated. The Methodological Index for NonRandomized Studies scale was used for quality assessment. Weighted mean difference was calculated and pooled by meta-analysis using random-effect models. Results: The search identified 1581 articles, of which 15 were included. The average risk of bias was low. Both systems achieved significant increases in MMO and decreased VAS pain scores at 1, 2, and 3 years after surgery. No significant difference was found between the system types. Both achieved significant improvements in dietary VAS scores, with a more significant improvement for stock implants. Conclusions: Due to the lack of detailed diagnostic evaluation tools allowing proper start-point categorization, there is a significant risk for selection bias in the pooled data. The PSI is more frequently chosen for cases with more significant joint degeneration, skewing postoperative results. A patient-fitted implant can provide significant operative and patient-centered advantages over a stock implant, which will likely be confirmed when observational cohort studies have included indications like the ones for stock prostheses. Furthermore, while current US Food and Drug Administration-approved stock implants contain cobalt -chromium -molybdenum, the newly manufactured PSI are made of titanium alloy, diminishing the risks of morbidity and implant failure.
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Xu, Yang, Yong-xing Cao, Xing-chen Li, and Xiang-yang Xu. "Revision lateral ankle ligament reconstruction for patients with a failed modified Brostrom procedure." Journal of Orthopaedic Surgery 30, no. 3 (September 2022): 102255362211259. http://dx.doi.org/10.1177/10225536221125948.
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Purpose The Brostrom-Gould procedure has been considered as a gold standard operative technique for chronic lateral ankle instability. Despite the popularity and excellent outcomes of the modified Brostrom procedure, some patients still experience recurrence of ankle instability. Few studies reported outcomes of revision reconstruction for patients with a failed modified Brostrom procedure. This study aimed to evaluate the outcomes of a percutaneous anatomic revision lateral ankle ligament reconstruction for patients with a failed modified Brostrom procedure. Methods From March 2017 to April 2020, 21 patients with persistent ankle instability after a modified Brostrom procedure underwent revision lateral ankle ligament reconstruction. The operation was performed through minimally invasive incisions. Functional assessment was performed using the Karlsson–Peterson ankle scoring system (KP) and the Visual Analogue Scale (VAS). The questionnaires of KP and VAS were completed before surgery and at the last follow-up. Patients’ subjective satisfaction level was graded as excellent, good, fair, and poor. Preoperative and postoperative anterior talar displacement and varus talus tilt angle in stress radiographs were recorded. Results The average age at the revision surgery time was 39.6years. The mean follow-up was 39.2months. The VAS score improved from 4.1 ± 1.5 preoperatively to 1.3 ± 1.3 at the final follow-up ( p < .05). The KP score improved from 59.0 ± 20.2 preoperatively to 88.2 ± 9.6 at the last follow-up ( p < .05). The mean varus talar tilt angle was 14.1 ± 3.9 mm preoperatively versus 4.9 ± 4.7 mm at the final follow-up ( p < .05). The mean anterior talar displacement was 12.8 ± 2.2 mm versus 5.6 ± 3.7 mm at the last follow-up ( p < .05). Conclusions The revision anatomic reconstruction of the lateral ligaments of the ankle is effective for patients with recurrent instability after a failed modified Broström procedure.
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Więckiewicz, Włodzimierz, Krzysztof Woźniak, Dagmara Piątkowska, Liliana Szyszka-Sommerfeld, and Mariusz Lipski. "The Diagnostic Value of Pressure Algometry for Temporomandibular Disorders." BioMed Research International 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/575038.
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The aim of this study is to determine the diagnostic value of pressure algometry in temporomandibular disorders. Two hundred volunteers aged 19.3 to 27.8 (mean 21.50, SD 0.97) participated in this study. An analogue pressure algometer was used for the evaluation of muscle tenderness of the following masticatory muscles: superficial and deep parts of the masseter muscle; anterior and posterior parts of the temporal muscle; and the tissues adjacent to the lateral and dorsal part of the temporomandibular joint capsule. Each patient described the algometry result for the individual components of the masticatory motor system, by selecting each time the intensity of pain on a 100 mm Visual Analogue Scale (VAS) ruler. The area under the receiver operating characteristic (ROC) curve, indicating the discriminatory efficiency for asymptomatic subjects and patients with temporomandibular dysfunction according to the dysfunction Di index, was the largest for the mean pain value (AUC = 0.8572; SEM = 0.0531). The 7.4 VAS cut-off point marked 95.3% specificity for this variable in identifying healthy subjects and 58.4% sensitivity in identifying patients with symptoms of dysfunctions (accuracy 68.1%). Assuming comparable sensitivity (74.9%) and specificity (74.2%) for a diagnostic test, there was test accuracy of 74.5% at the 4.2 VAS cut-off point.
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Li, Gang, Zhengwei Lu, Yangming Cao, Lijin Zou, and Xinjun Chen. "CPUE Estimation and Standardization Based on VMS: A Case Study for Squid-Jigging Fishery in the Equatorial of Eastern Pacific Ocean." Fishes 8, no. 1 (December 21, 2022): 2. http://dx.doi.org/10.3390/fishes8010002.
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Different fisheries, even the same fishery, use different ways of quantifying fishing efforts such as the number of vessels, days, voyages, and hooks. In squid-jigging fisheries, fishing hours, fishing days, and the number of vessels are valid units for calculating the catch per unit effort (CPUE). A vessel monitoring system (VMS) provides vessel position data with high spatial and temporal resolution and offers the possibility to quantify the CPUE at a finer scale. Using the squid fishery in the equatorial waters of the eastern Pacific as a case study, the CPUE was evaluated and standardized based on VMS data. The drifting operating points of the squid fishing vessels were filtered by the speed threshold, solar radiation, and operating time setting methods, leading to the number of fishing hours per day, and the nominal CPUE was calculated by combining the catch data obtained from logbooks. Then, the generalized linear model (GLM) and generalized additive model (GAM) were applied to conduct CPUE standardization considering spatiotemporal factors and environmental variables including sea surface temperature (SST), sea surface salinity (SSS), sea surface height (SSH), and chlorophyll-a (Chl_a). The results showed that month, latitude, SST, SSH, and Chl-a all have a high significant effect on CPUE as demonstrated through the significance test conducted by GLM. The GAM including the significant factors was judged to be the best model according to the AIC guidelines. The latitude range for high CPUE in the fishery was 3°S~0°S, SST range 24~25 °C, SSH range 4~8 m, and Chl_a range 0.15~0.20 mg/m3. In addition, the nominal and standardized CPUEs were compared based on fishing hours and fishing days. The results indicated that the two types of CPUEs were highly related hence there was no significant difference.
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Madonna, Vincenzo, Vincenzo Condello, Gianluca Piovan, Daniele Screpis, and Claudio Zorzi. "Use of the KineSpring system in the treatment of medial knee osteoarthritis: preliminary results." Joints 03, no. 03 (July 2015): 129–35. http://dx.doi.org/10.11138/jts/2015.3.3.129.
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Purpose: the purpose of this study was to analyze our preliminary results obtained with the KineSpring system in patients suffering from medial compartment knee osteoarthritis (OA). Methods: between September 2012 and May 2014, 53 patients underwent treatment with the KineSpring system. Patient self-assessment was performed preoperatively and at 3, 6 and 12 months postoperatively, and included the KOOS, Tegner activity score, Lysholm functional knee score, VAS knee pain score, and IKDC score. Device- and procedure-related adverse events were recorded. Results: mean KOOS subscales, except for the Sport/Recreation subscale at six months, improved over time. Mean WOMAC Pain and Function domains, Lysholm score, IKDC score and VAS knee pain score improved over the follow-up period and were significantly improved at 3, 6 and 12 months postoperatively compared to baseline. Mean Tegner score improved slightly over time. In 5 of the 53 (9.4%) patients re-operation was necessary. In 3 patients the device was removed due to infection (one case) or persistent knee pain (two cases). Surgical arthrolysis was performed in two patients. Conclusions: in our preliminary experience, the KineSpring system gave good short-term clinical results. Level of evidence: Level IV, therapeutic case series.
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Baumfeld, Daniel, André V. Lemos, Tiago S. Baumfeld, Alexandre L. Godoy-Santos, and Caio A. Nery. "Brazilian Experience with Zennith – Corin System Total Ankle Replacement." Foot & Ankle Orthopaedics 5, no. 4 (October 1, 2020): 2473011420S0011. http://dx.doi.org/10.1177/2473011420s00115.
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Category: Ankle Arthritis Introduction/Purpose: Total ankle arthroplasty is already a reality in Brazil, although there are few publications of clinical outcomes in our country. The objective of this publication is to evaluate the results of TAA in a series of patients treated with corin system total ankle replacement Methods: 26 TAA were implanted from Jan / 13 to Aug / 16, (26 patients - 15F: 58% / 11M: 42%) (mean age: 55 years: min 37a / max 69a) using the implants Zennith from Corin (UK). Data from the clinical status (VAS, AOFAS, ADM), implant positioning and osteotomies (LTS, tibial slope, Alpha, Beta and Teta angles and distances ‘a’ and ‘b’) were evaluated in addition to the qualitative bone evolution (Peri-prosthetic cysts, sagging and wear of the components). Immediate and late information of associated surgeries, complications, and re-interventions were collected. Figure 1 present pre and post operative image Results: At 31 months of follow-up (min 4m: max 48m), there was a significant improvement in VAS (pre 8: post 2), AOFAS score (pre 37: post 77) and tibio-talar movement arch (pre 12: post 25 ) (P <0.001). There were some complications: 7 (27%) had peri-prosthetic cysts, 3 (12%) talar subsidence, 2 (8%) tibial subsidence and 2 (8%) poly wear. 8 patients (31%) had associated surgeries (19%: malleolar fracture). As major complications: 1 (4%) postoperative infection, 3 (12%) skin complications and 2 failures (8%). Conclusion: Despite the high morbidity, total ankle replacement represents a valuable therapeutic resource.
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Zhang, Yiming, Chengfei Zhang, Yaozheng Wang, Kai Yu, Guangtao Xue, and Jon Crowcroft. "KylinX." ACM Transactions on Computer Systems 37, no. 1-4 (June 2021): 1–27. http://dx.doi.org/10.1145/3436512.
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Unikernel specializes a minimalistic LibOS and a target application into a standalone single-purpose virtual machine (VM) running on a hypervisor, which is referred to as (virtual) appliance . Compared to traditional VMs, Unikernel appliances have smaller memory footprint and lower overhead while guaranteeing the same level of isolation. On the downside, Unikernel strips off the process abstraction from its monolithic appliance and thus sacrifices flexibility, efficiency, and applicability. In this article, we examine whether there is a balance embracing the best of both Unikernel appliances (strong isolation) and processes (high flexibility/efficiency). We present KylinX, a dynamic library operating system for simplified and efficient cloud virtualization by providing the pVM (process-like VM) abstraction. A pVM takes the hypervisor as an OS and the Unikernel appliance as a process allowing both page-level and library-level dynamic mapping. At the page level, KylinX supports pVM fork plus a set of API for inter-pVM communication (IpC, which is compatible with conventional UNIX IPC). At the library level, KylinX supports shared libraries to be linked to a Unikernel appliance at runtime. KylinX enforces mapping restrictions against potential threats. We implement a prototype of KylinX by modifying MiniOS and Xen tools. Extensive experimental results show that KylinX achieves similar performance both in micro benchmarks (fork, IpC, library update, etc.) and in applications (Redis, web server, and DNS server) compared to conventional processes, while retaining the strong isolation benefit of VMs/Unikernels.
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Pergał, Szymon. "Functional and Performance Characteristics Including Principles of Placing the Elements of Voice Alarm Systems on the Market." Safety & Fire Technology 57, no. 1 (2021): 26–40. http://dx.doi.org/10.12845/sft.57.1.2021.2.
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Aim: The aim of the article was to present voice alarm systems and discuss the legitimacy of their use in fire alarm systems. The article presents the principles of introducing the elements of voice alarm systems to the market and their functional and operational properties. The article was written on the basis of a master’s thesis entitled “The analysis of the functional and operational properties of voice alarm systems” submitted at the Faculty of Safety and Civil Protection Engineering of the Main School of Fire Service. Introduction: Voice alarm system is one of the methods of warning the users of facilities about a threat, but there are many methods of alerting, e.g. sounders or optic signalling devices. Each of the above-mentioned systems has its advantages and disadvantages, so the application of the appropriate system, regardless of whether the regulations impose this obligation on the investor or it will be done on investor's own require deep consideration. Methods: There are several legal acts in force in Poland that define various aspects of voice alarm systems. Facilities in which the use of voice alarm systems (VAS) is mandatory are listed in the Regulation of the Minister of Interior and Administration of 7 June 2010 on fire protection of buildings, other construction facilities and areas. In turn, the specification of the documents required for individual VAS elements is specified in the Regulation (EU) No 305/2011 of the European Parliament and of the Council of 9 March 2011 establishing harmonized conditions for the marketing of construction prod- ucts and repealing Council Directive 89/106/EEC and additionally in Poland in the annex to the regulation of the Minister of Interior and Administration of 20 June 2007 on the list of products used to ensure public safety or protection of health and life and property, as well as the rules for issuing admittance for use of these products. Results: It has been found that many elements of voice alarm systems require careful analysis. Starting with the conformity assessment of the system components through its parameters, such as speech intelligibility, coverage angles or the appropriate sound pressure level. It is also important to select the system for the intended functional use of the rooms and to verify the correct operation of the system after changing the arrangement. Conclusions: Voice alarm systems are a very good, but relatively expensive system. They allow for a very diverse operation and facilitate appropriate evacuation. However, despite the high costs, it is worth considering their installation due to the invaluable action in terms of ensuring the safety of the users of the facility and the protection of their lives. Keywords: voice alarm systems, loudspeakers, maintenance, conformity assessment, phased evacuation Type of article: review article
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Fay, Li-Yu, Jau-Ching Wu, Tzu-Yun Tsai, Tsung-Hsi Tu, Ching-Lan Wu, Wen-Cheng Huang, and Henrich Cheng. "Intervertebral Disc Rehydration after Lumbar Dynamic Stabilization: Magnetic Resonance Image Evaluation with a Mean Followup of Four Years." Advances in Orthopedics 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/437570.
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Objective.To compare the clinical and radiographic outcomes in patients of different ages who underwent the Dynesys stabilization.Methods.This retrospective study included 72 patients (mean age 61.4 years) with one- or two-level lumbar spinal stenosis who underwent laminectomy and the Dynesys (Zimmer Spine, Minneapolis) dynamic stabilization system. Thirty-seven patients were younger than 65-year old while the other 35 were older. Mean followup was 46.7 months. Pre- and postoperative radiographic and clinical evaluations were analyzed.Results.The mean calibrated disc signal (CDS) at the index level was significantly improved from60.2±25.2preoperatively to66.9±26.0postoperatively (P>0.001). Screw loosening occurred in 22.2% of patients and 5.1% of screws. The improvement in CDS at index level was seen to be significant in younger patients but not in older patients. Overall, the mean visual analogue scale (VAS) of back pain, VAS of leg pain, and the Oswestry disability index (ODI) scores improved significantly after operation. There were no significant differences in pre- and postoperative VAS and ODI and screw loosening rates between the younger and older patients.Conclusions.There is significant clinical improvement after laminectomy and dynamic stabilization for symptomatic lumbar spinal stenosis. Intervertebral disc rehydration was seen in younger patients.
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Jamil, Sara, Rizwan Jouhar, Dinaz Gandhi, Tayyaba Tahira, and Jamshed Shaikh. "Comparison between the mean postoperative pain score with two different file systems in patients with irreversible pulpitis-a clinical study in Altamash Institute of Dental Medicine." Professional Medical Journal 26, no. 08 (August 10, 2019): 1359–64. http://dx.doi.org/10.29309/tpmj/2019.26.08.89.
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Endodontic Pain if occurs after few hours or days after the treatment indicates a poor pathosis and a bad prognosis in long term, due to this a newer generation of instruments for canal treatment has been introduced from Ni-Ti alloy which has even better ability to shape narrow and curved root canals, without causing aberration. To compare the mean postoperative pain score after manual SS (stainless steel) K-files and mechanical Ni-Ti rotary path files in patients with irreversible pulpitis. Study Design: Randomized controlled trial. Setting: Department of Operative Dentistry, Altamash Institute of Dental Medicine, Karachi. Period: 6 months from 01-10-2017 to 30-03-2018. Materials and Methods: Total 60 patients of irreversible pulpitis with moderate pain score ≥5 were included and divided equally in manual stainless-steel k-files and mechanical Ni-Ti rotary path files groups. Treatment was started with local anesthesia. Patients were recalled after 24 hours and the level of postoperative pain was examined. T-test was applied to compare the outcome in both groups. Stratification was done using t-test and P value ≤0.05 was significantly considered. Results: The mean pre-treatment VAS in group-A and group-B was 7.16±1.44 and 7.86±1.38 respectively. Mean post-treatment VAS in group-A and group-B was 2.33±1.02 and 1.10±0.66 respectively. A significant difference between the pre and post op pain was noted between the two groups, when compared after 24hours by using VAS. Conclusion: Mean post-operative pain score was significantly less with NiTi rotary path files as compare to manual stainless steel K-files.
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Karaduman, Zekeriya Okan, Ozan Turhal, Yalçın Turhan, Mehmet Arıcan, Cemal Güler, and Sengul Cangur. "Comparison of Two Different Approaches to Treat a Hallux Valgus Deformity: Intramedullary Self-Locked Plates and Herbert Screws." Medicina 55, no. 9 (September 16, 2019): 595. http://dx.doi.org/10.3390/medicina55090595.
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Background and objectives: Hallux valgus is a complex deformity of the first metatarsophalangeal joint characterized by varus deformity of the first metatarsal bone, valgus deformity of the big toe, and lateral deviation of the extensor tendons and sesamoid bones. Several surgical methods have been described for correction of the deformity. Different materials have been used for the fixation of osteotomy. We compared the functional, radiological, and pain results of intramedullary self-locked plates and Herbert screws for the treatment of a hallux valgus deformity. Materials and Methods: Distal metatarsals were treated with self-locking intramedullary plate–screw systems in 18 feet from 12 patients (Group 1) and with Herbert screws in 18 feet from 12 patients (Group 2). The hallux valgus angle (HVA) and intermetatarsal angle (IMA) in patients of Group 1 and 2 were examined radiologically during the pre- and postoperative periods. We also determined the American Orthopedic Foot and Ankle Society (AOFAS), EQ-5D General Life Quality Scale, and Visual Analogue Scale (VAS) scores during the pre- and postoperative periods and compared the scores between groups. Results: Post hoc test results of HVA and IMA angles measured after the operation were significantly higher in Group 2 than in Group 1. In each group, the AOFAS scores during the preoperation period were significantly lower than those during the postoperation period (p < 0.001). According to the post hoc test results, the VAS scores after the operation were significantly higher in Group 2 than in Group 1 (p < 0.001). Conclusions: For the surgical treatment of hallux valgus, operations using self-locked plates compared to a single screw are superior in terms of providing rigid stability and for functional, radiological, and pain scores.
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GÜN, Eren Görkem, and Şanser GÜL. "Dural splitting has similar therapeutic efficacy with less complications, shorter operative and hospitalization times when compared to duraplasty in chiari type-I malformation." Kastamonu Medical Journal 2, no. 4 (December 8, 2022): 113–18. http://dx.doi.org/10.51271/kmj-0081.
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Background: A standard surgical technique has not been developed for Chiari Type-1 malformation. Recently, dural-splitting has also been introduced in addition to duraplasty. We aimed to determine both surgical techniques’ advantages/disadvantages clinically and radiologically.
Material and Method: We retrospectively evaluated 28 patients’ data with Chiari Type-I malformation and operated at the Neurosurgery Department of Bülent Ecevit University between January 2014 and April 2018. We retrieved demographic characteristics, symptoms, physical/neurological findings, preoperative/postoperative imaging data/measurements, VAS, Chicago Chiari Outcome Scale, Neck Disability Index, Neurological Scoring System, and modified-JOA scores, operation and hospitalization times, and complications from the automation system.
Results: Patients’ mean age was 38.5±13.0 years, and female/male ratio was 2.1/1. Syringomyelia was present in half of all cases. Mean tonsil herniation length was 11.64±4 mm, and mean tonsillo-dural distance was 4.18±1.7 mm. There were no significant relationships between tonsil herniation length and syringomyelia, and between tonsillo-dural distance and clinical improvement. Posterior fossa decompression was initially performed in all patients. Then, in 17 patients, duraplasty was performed. In 11 patients, dural-splitting was used. No significant differences were determined between duraplasty and dural-splitting regarding VAS, Chicago Chiari Outcome Scale, Neck Disability Index, Neurological Scoring System, and modified-JOA scores. Significant differences were present, favoring dural-splitting regarding operation time, hospital stay, and complication rates.
Conclusion: Posterior fossa decompression/duraplasty is an effective surgical technique to treat Chiari Type-I malformation. Posterior fossa decompression/dural-splitting is an optimal surgical alternative with a lower complication rate, shorter operation time, and hospitalization period.
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Basankin, Igor Vadimovich, Vladimir Alexeevich Porkhanov, Asker Alievich Afaunov, Alexander Veniaminovich Kuzmenko, and Vladimir Konstantinovich Shapovalov. "COMPLICATIONS OF SURGICAL TREATMENT OF LUMBAR STENOSIS IN THE EARLY POSTOPERATIVE PERIOD." Coluna/Columna 17, no. 3 (July 2018): 185–87. http://dx.doi.org/10.1590/s1808-185120181703200487.
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ABSTRACT Objective: To analyze the structure of degenerative lumbar stenosis surgical treatment complications and to analyze their effect on the results and indications for revision operations. Methods: Between 2009 and 2013, 513 patients with lumbar stenosis of degenerative etiology were surgically treated. There were 205 men, 308 women, aged 23 to 74 years. The main clinical manifestations were persistent compression radiculopathy, chronic pain in the back and lower limbs, and difficulty walking. The intensity of the pain was assessed by the VAS. At the time of hospitalization, VAS was 55-90 points. Results: Of the 513 operated patients, 65 (12.67%) had complications in the early postoperative period (up to three months after the operation); intraoperative complications occurred in 26 (5.1%) patients; intraoperative dura mater injury occurred in 24 (4.67%); pulmonary embolism (PE) occurred in 2 (0.39%) patients; 39 patients had early postoperative complications; acute radiculopathy occurred in 22 patients (4.28%); and 17 patients (3.31%) had surgical wound complications. Conclusions: Liquorrhea, postoperative hematomas and acute radiculopathy had no negative effect on the results of treatment in any of the cases. In the early postoperative period, 4 (0.77%) deaths were recorded intraoperatively and in 2 (0.39%) cases, intraoperative PE occurred. Two cases (0.39%) resulted in sepsis and multiple organ failure. In eight (1.55%) patients, the results of the treatment were unsatisfactory: in 4 (0.77%) cases due to death, and in a further 4 (0.77%) due to elimination of the system by the spinal column as a result of suppuration. Level of Evidence IV; Therapeutic studies - Investing the results of treatment.
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Merz, Cornelia, Patrick Burkhardt, Marleen Wiedmann, Albert Köck, and Johannes Beckmann. "LIA with vs. without an additional intraarticular catheter- Results of a RCT." Orthopaedic Journal of Sports Medicine 6, no. 4_suppl2 (April 1, 2018): 2325967118S0002. http://dx.doi.org/10.1177/2325967118s00027.
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Local infiltration analgesia (LIA) is meanwhile worldwide established and scientifically proven in perioperative treatment of TKA. Single-shot is the mostly used option. However, after the local analgesia has subsided, at the latest after the day of surgery, the pain is usually present and affects rapid mobilization and rehabilitation. Long-acting medications for LIA have not proved to be effective and there are barely data on intra-articular continuous analgesia. We present a randomized controlled trial which compares the LIA with and without additional continuous analgesia using an intraarticular catheter. 50 patients with TKA were randomized and included in the study. All patients received the same implant system without patellar resurfacing, without tourniquet or drains. The operation was performed by the same surgeon and postoperative treatment was identical. Both groups received a general anesthesia with laryngeal mask. A group of 25 patients received a single-shot LIA containing 150 ml bupivacaine (0.2%) and morphine (20 mg). The other group, also 25 patients, received the same single-shot LIA and an intraarticular catheter (350 ml) for 3 days with continuous infiltration (8ml/h) of bupivacaine (0.2%) and morphine (20 mg per 200 ml bupivacaine) . The following parameters were recorded preoperatively and postoperatively: VAS, additionally analgetics / opioids. Also included were complications such as infections, postoperative falls and DVT. The average operating time was 46 min. There were no complications or reinterventions. The results were not significantly different during the first day, but for day 2 to 4 VAS was significantly better and additional analgetics / opioids were significantly less (p <0.05) in the group with additional catheters. On days 5 and 6, the results again were comparable. There was a superiority of the additional intra-articular catheter for some days in the perioperative treatment of TKA.
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Grün, Wolfram, Marius Molund, Fredrik Nilsen, and Are Haukåen Stødle. "Results After Percutaneous and Arthroscopically Assisted Osteosynthesis of Calcaneal Fractures." Foot & Ankle International 41, no. 6 (May 15, 2020): 689–97. http://dx.doi.org/10.1177/1071100720914856.
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Background: Operative treatment of calcaneal fractures using the extensile lateral approach is associated with high rates of soft tissue complications. In the past years, there has been a trend toward less invasive surgical approaches. Percutaneous and arthroscopically assisted calcaneal osteosynthesis (PACO) combines the advantages of visualization of the posterior facet of the subtalar joint with a minimally invasive approach. Methods: We conducted a follow-up of 25 patients with 26 calcaneal fractures (Sanders II and III), treated with PACO with a minimum follow-up of 12 months. The median age was 44 years (range, 21-72) and the follow-up period 15 months (12-33). Our clinical outcomes were the Manchester-Oxford Foot Questionnaire (MOxFQ), the Calcaneus Fracture Scoring System (CFSS), the American Orthopaedic Foot & Ankle Society (AOFAS) Ankle-Hindfoot score, the Short-Form-36 (SF-36), the visual analog scale (VAS) for pain, and the number of complications. Radiographs on follow-up were obtained to evaluate the reduction of the fractures as well as osteoarthritis of the subtalar joint. Results: The median MOxFQ score was 26.6 (0-76.6), the CFSS score 85 (26-100), and the AOFAS score 85 (50-100). The VAS pain score was 0 (0-5.7) at rest and 4.1 (0-8.2) during activity. The Böhler angle improved from a mean (SD) of 3.5 (12.3) degrees preoperatively to 27.7 (10.5) degrees postoperatively. The follow-up radiographs showed subsidence of the fractures and a Böhler angle of 20.3 (12.9) degrees. There were no wound-healing complications. Two patients had additional surgery with screw removal due to prominent hardware. Conclusion: Our results suggest that PACO gives good clinical outcomes and a low risk of complications in selected calcaneal fractures. Prospective long-term studies will be necessary to better document the potential advantages and limitations of this operating technique. Level of Evidence: Level IV, retrospective case series.