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Muraleedhar, Aparna V., Sarvapelli Venkata Satish, Ashwini M. Patil, Suresh Kumar Kovvuru, and Snehalatha Patil. "Comparative Evaluation of Efficacy of Three Different Rotary Retreatment Systems with Manual Instrumentation in Removing Gutta-Percha from Root Canals – An In Vitro Study." Journal of Evolution of Medical and Dental Sciences 10, no. 14 (2021): 1025–29. http://dx.doi.org/10.14260/jemds/2021/219.
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BACKGROUND The primary goal of endodontic retreatment is to take out the root filling completely to ensure that the canal is completely cleaned. Gutta percha removal using hand instruments is a time-consuming procedure and tedious for the operator. Therefore, various nickel titanium instruments have been introduced for the effective retrieval of gutta percha. This study was done to compare the efficacy of three different rotary systems compared with manual instrumentation for gutta percha removal during retreatment. METHODS Forty-eight single rooted premolars were prepared and obturated using gutta percha and AH Plus sealer using lateral compaction technique. Samples were randomly divided into four groups of 12 specimens each. Group 1 was retreated with Hedstrom Files (H-Files), group 2 was retreated with pro taper universal retreatment files (PTUR), group 3 with R-Endo retreatment files and group 4 with Neoendo retreatment files. Time taken for the retreatment was recorded for each tooth using a stopwatch. The samples were sectioned longitudinally and observed under a stereomicroscope. Digital images were taken and analysed using digital image analysing software. The data was statistically analysed using Kruskal-Wallis and Post-hoc Mann-Whitney test. RESULTS The Neoendo group showed significantly lower amount of residual material compared to PTUR, R-Endo and the H-Files (P = 0.00). The maximum residual material was observed in the H file group. The time taken for gutta percha removal was least for the Neoendo group followed by PTUR, R-Endo and H-Files. CONCLUSIONS None of the instruments were able to remove the filling material completely. Gutta percha removal using Neoendo and protaper universal retreatment files were faster and more efficient compared to REndo and H files. KEY WORDS Endodontic Retreatment, Protaper Universal Retreatment Files, R-Endo, Neoendo, HFiles
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Pilka, Filip, and Miloš Oravec. "Prediction Methods for MPEG-4 and H.264 Video Transmission." Journal of Electrical Engineering 62, no. 2 (2011): 57–64. http://dx.doi.org/10.2478/v10187-011-0010-6.
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Prediction Methods for MPEG-4 and H.264 Video Transmission Video services became a large part of internet network traffic. Therefore understanding of video coding standards and video traffic sources, such as video trace files is highly important. In this paper we concentrate on the basic characteristics of mpeg-4 and h.264 video coding standards. We describe the concept of the i, p and b frames in these standards since they are the main feature of every video trace file. Then we describe the content of the video trace files since the trace files are important for researchers to investigate network performance and understanding of network features. These are the important issues in terms of assuring the quality of service (QoS) in multimedia applications spread across the internet. Traffic prediction and bandwidth allocation are the crucial parts in terms of QoS. In this kind of applications, the artificial neural networks are vastly used. Therefore we illustrate the results of neural networks for video traffic prediction using both mpeg-4 and h.264 trace files.
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Jindal, Varun, and Ajay Chhabra. "Effectiveness of Three Rotary Niti Instruments and Hand Instrumentation in Removing Gutta Percha from Root Canals: an in vitro Study." Dental Journal of Advance Studies 03, no. 03 (2015): 152–58. http://dx.doi.org/10.1055/s-0038-1672031.
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Abstract Objectives: The study aimed to assess variation in the remaining filling material by radiographic analysis and the time taken for retreatment system, with H-files; the ProTaper Universal Retreatment System; Mtwo retreatment system and the SybronEndo K3. Methods: 120 human mandibular premolars with single straight root canals were prepared with rotary twisted files (up to size 40/0.04) using the crown down technique and filled by cold lateral condensation and the radiographs were taken. After one week, teeth were divided into four groups (n = 30). Gutta-percha was removed using H-files, the ProTaper Universal Retreatment System, Mtwo system and the K3 System. After retreatment radiographs were taken for each sample and the remaining material was calculated for each canal third. Results: Rotary NiTi instruments were significantly faster than the hand instrumentation technique in performing the retreatment. In radiographic analysis there was significant difference in between the groups for coronal third in ProTaper group and for apical third in H-file group. Conclusions: In the radiographic analysis the ProTaper Universal System left less filling material in the coronal third and the H-files left less filling material in apical third as compared to other groups. Rotary instruments worked faster than H files.
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Sarwar, Huma, Meshal M. Meshal M Naeem, Sumaiya Shabbir, Sania Riaz, Hasan Afaq, and Juzer Shabbir. "Effect of Hydrogen Peroxide on Cyclic Fatigue Resistance of NiTi Endodontic Files." Journal of the Pakistan Dental Association 29, no. 04 (2020): 246–48. http://dx.doi.org/10.25301/jpda.294.246.
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OBJECTIVE: To investigate the effect of nickel titanium rotary endodontic file immersion in hydrogen peroxide on cyclic fatigue resistance. METHODOLOGY: Twenty Six Protaper Universal (Dentsply Maillerfier) F1 files were randomly divided into two experimental groups. In Group I, Protaper universal variable taper F1 files were immersed in normal saline where as in Group II, the files were soaked in hydrogen peroxide (6% w/v) for 2 hours at 37°C. Cyclic fatigue of each file was checked by recording the number of rotations required to break a file in a 90°curve with a 5 mm radius. For statistical analysis of data, Two-way ANOVA was applied. A p value of <0.05 was considered significant. RESULT: Out of Twenty Six, Six files fractured spontaneously after immersion in hydrogen peroxide. Twenty files were subjected to fracture resistance testing. Statistically significant difference in cyclic fatigue resistace between the two groups was found (p=0.002). The files soaked in Group II required less revolutions to fracture than the ones immersed Group I. CONCLUSION: The immersion of NiTi endodontic files in hydrogen peroxide significantly reduces cyclic fatigue resistance. Therefore, immersion of the NiTi endodontic files in hydrogen peroxide solution for removal of clogged debris should be discouraged. KEYWORDS: Cyclic fatigue, Endodontic instruments, Hydrogen peroxide, NiTi HOW TO CITE: Sarwar H, Naeem MM, Shabbir S, Riaz S, Afaq H, Shabbir J. Effect of hydrogen peroxide on cyclic fatigue resistance of NiTi endodontic files. J Pak Dent Assoc 2020;29(4):246-248.
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Thomas, Annick, Nora Benhabiles, Rita Meurisse, Renovat Ngwabije, and Robert Brasseur. "Pex, analytical tools for PDB files. II. H-Pex: Noncanonical H-bonds in ?-helices." Proteins: Structure, Function, and Genetics 43, no. 1 (2001): 37–44. http://dx.doi.org/10.1002/1097-0134(20010401)43:1<37::aid-prot1015>3.0.co;2-l.
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Zinelis, Spiros, and Youssef S. Al Jabbari. "How Hedstrom files fail during clinical use? A retrieval study based on SEM, optical microscopy and micro-XCT analysis." Biomedical Engineering / Biomedizinische Technik 64, no. 2 (2019): 225–31. http://dx.doi.org/10.1515/bmt-2017-0182.
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Abstract This study was conducted to evaluate the failure mechanism of clinically failed Hedstrom (H)-files. Discarded H-files (n=160) from #8 to #40 ISO sizes were collected from different dental clinics. Retrieved files were classified according to their macroscopic appearance and they were investigated under scanning electron microscopy (SEM) and X-ray micro-computed tomography (mXCT). Then the files were embedded in resin along their longitudinal axis and after metallographic grinding and polishing, studied under an incident light microscope. The macroscopic evaluation showed that small ISO sizes (#08–#15) failed by extensive plastic deformation, while larger sizes (≥#20) tended to fracture. Light microscopy and mXCT results coincided showing that unused and plastically deformed files were free of internal defects, while fractured files demonstrate the presence of intense cracking in the flute region. SEM analysis revealed the presence of striations attributed to the fatigue mechanism. Secondary cracks were also identified by optical microscopy and their distribution was correlated to fatigue under bending loading. Experimental results demonstrated that while overloading of cutting instruments is the predominating failure mechanism of small file sizes (#08–#15), fatigue should be considered the fracture mechanism for larger sizes (≥#20).
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Busby, D. W., P. G. Burke, V. M. Burke, C. J. Noble, N. S. Scott, and I. T. A. Spence. "HBrowse: a GRACE tool for browsing R-matrix H-files." Computer Physics Communications 131, no. 3 (2000): 202–24. http://dx.doi.org/10.1016/s0010-4655(00)00122-3.
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Ali, Afzal, Sazid Hussain, Sandeep Metgud, Shashank Mishra, Ankita Sharma, and Nikita Gupta. "Comparative assessment of manual, rotary and reciprocating instruments for removal of root fillings, using stereomicroscope: An in vitro study." Bangladesh Medical Research Council Bulletin 45, no. 1 (2019): 54–61. http://dx.doi.org/10.3329/bmrcb.v45i1.41809.
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Background: To investigate the efficiency of Hedstrom (H; Dentsply Maillefer) file, Protaper Universal Retreatment system (PTUR; Dentsply Maillefer), Mani NRT-GPR files (Mani, Japan) and WaveOne (WO; Dentsply Maillefer) Reciprocating files in removing Gutta Percha (GP) and sealer from root canals.
 Methods: Sixty canals with less than 10° curvature from extracted human maxillary incisors were used. Root canal reinstrumentation was performed with H, PTUR, Mani NRT-GPR and WO files. Amount of residual root filling material (Gutta-percha and or sealer) were measured by using stereomicroscope. Data of GP or sealer remnants were statistically analyzed using one-way analysis of variance and Tukey test.
 Results: There were no significant differences among 4 groups in terms of residual root filling material in the apical third (p > 0.05). H-file group showed highest amount of root residual root filling as compared to groups.
 Conclusions: Reciprocating file system proved to be more efficient in removing the root canal fillings material than other retreatment file systems. H file group showed highest amount of root canal filling material.
 Bangladesh Med Res Counc Bull 2019; 45: 54-61
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Haifeng, Ma, Gao Zhenguo, and Yao Nianmin. "Hierarchical remote data possession checking method based on massive cloud files." Journal of Algorithms & Computational Technology 11, no. 2 (2016): 126–34. http://dx.doi.org/10.1177/1748301816682243.
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Cloud storage service enables users to migrate their data and applications to the cloud, which saves the local data maintenance and brings great convenience to the users. But in cloud storage, the storage servers may not be fully trustworthy. How to verify the integrity of cloud data with lower overhead for users has become an increasingly concerned problem. Many remote data integrity protection methods have been proposed, but these methods authenticated cloud files one by one when verifying multiple files. Therefore, the computation and communication overhead are still high. Aiming at this problem, a hierarchical remote data possession checking (hierarchical-remote data possession checking (H-RDPC)) method is proposed, which can provide efficient and secure remote data integrity protection and can support dynamic data operations. This paper gives the algorithm descriptions, security, and false negative rate analysis of H-RDPC. The security analysis and experimental performance evaluation results show that the proposed H-RDPC is efficient and reliable in verifying massive cloud files, and it has 32–81% improvement in performance compared with RDPC.
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Jayasenthil, Athikesavan, Emmanuel Solomon Sathish, and Prashanth Prakash. "Evaluation of Manual and Two-Rotary Niti Retreatment Systems in Removing Gutta-Percha Obturated with Two Root Canal Sealers." ISRN Dentistry 2012 (September 10, 2012): 1–4. http://dx.doi.org/10.5402/2012/208241.
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Objective. The objective of this study was to evaluate the efficacy of two retreatment NiTi systems (protaper universal retreatment files, R-Endo), when compared to manual technique in removing Gutta-percha obturated with two sealers. Study Design. Sixty extracted single-rooted premolars were instrumented with Protaper rotary files till F3. The specimens were divided into six groups. Groups 1, 2, 3 were obturated with Gutta-percha and zinc oxide eugenol and Groups 4, 5, 6 were obturated with Gutta-percha and AH-plus. The retreatment was carried out in groups 1 and 4 with H-files and GGdrills, groups 2 and 5 with R-endo retreatment files and groups 3 and 6 with Protaper retreatment files. The roots were sectioned and evaluated under optical stereomicroscope. Statistical analysis was performed with one-way ANOVA and Newman-Keul's test at . Results. The manual technique resulted in cleaner canal walls when compared with both rotary retreatment systems. Conclusion. NiTi rotary retreatment files can be used to remove the filling material quickly, but it should be followed by hand instruments to obtain better canal wall cleanliness.
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Woo Chang, Jae, and Yoon Joon Lee. "Design and evaluation of multikey access methods using signature files." Microprocessing and Microprogramming 33, no. 1 (1991): 9–19. http://dx.doi.org/10.1016/0165-6074(91)90011-h.
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Dear, Roger G., and Joseph S. Sherif. "Evaluation of protocols for availability, reliability and consistency of replicated files." Microelectronics Reliability 35, no. 8 (1995): 1143–45. http://dx.doi.org/10.1016/0026-2714(94)00148-h.
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Panchal, V., G. Jeevanandan, and E. M. G. Subramanian. "Comparison of post-operative pain after root canal instrumentation with hand K-files, H-files and rotary Kedo-S files in primary teeth: a randomised clinical trial." European Archives of Paediatric Dentistry 20, no. 5 (2019): 467–72. http://dx.doi.org/10.1007/s40368-019-00429-5.
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Bumbalek, Michal, Zdenek Joska, Zdenek Pokorny, et al. "Cyclic Fatigue of Dental NiTi Instruments after Plasma Nitriding." Materials 14, no. 9 (2021): 2155. http://dx.doi.org/10.3390/ma14092155.
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This study investigated the possibility of nitride NiTi instruments using low-temperature plasma nitriding technology in a standard industrial device. Changes in the properties and fatigue life of used NiTi instruments before and after low-temperature nitriding application were investigated and compared. Nontreated and two series of plasma-nitrided NiTi instruments, designed by Mtwo company with tip sizes of 10/.04 taper, 15/.05 taper, and 20/.06 taper, were experimentally tested in this study. All these instruments were used and discarded from clinical use. The instruments were tested in an artificial canal made of stainless steel with an inner diameter of 1.5 mm, a 60° angle of curvature, and a radius of curvature of 3 mm. A low-temperature plasma nitriding process was used for the surface treatment of dental files using two different processes: 550 °C for 20 h, and 470 °C for 4 h. The results proved that it is possible to nitride dental instruments made of NiTi with a low-temperature plasma nitriding process. Promising results were achieved in trial testing by NiTi instruments nitrided at a higher temperature. Plasma-nitrided files were found to have, in some cases, significantly higher values than nontreated files in terms of fatigue life. The results showed that the nitriding process offers promising possibilities for suitably modified surface properties and quality of surface layer of NiTi instruments. Within the limitations of the present study, the cyclic fatigue life of plasma-nitrided NiTi dental files can be increased using this surface technology.
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Mananghaya, Michael Rivera. "Titanium-decorated boron nitride nanotubes for hydrogen storage: a multiscale theoretical investigation." Nanoscale 11, no. 34 (2019): 16052–62. http://dx.doi.org/10.1039/c9nr04578c.
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A multiscale computational technique from available quantum mechanical and Molecular Dynamics (MD) codes to user-subroutine computational fluid dynamics (CFD) files was applied to the H<sub>2</sub> adsorption of Ti-decorated (10,0) single-walled BN nanotubes (BNNTs) with B–N defects.
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Sachdeva, Jyoti, Chetan R. Patil, Venugopal Thangala, Pabbati Ravi Kumar, and Akash Krishna. "To Evaluate and Compare the Efficacy, Cleaning Ability of Hand and Two Rotary Systems in Root Canal Retreatment." Journal of Contemporary Dental Practice 14, no. 3 (2013): 440–44. http://dx.doi.org/10.5005/jp-journals-10024-1341.
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ABSTRACT Aim To evaluate and compare the efficacy, cleaning ability of hand and two rotary systems in root canal retreatment. Methodology Sixty extracted premolars were retreated with following systems: Group 1—ProTaper Universal retreatment files, Group 2—ProFile system, Group 3—H-file. Specimens were split longitudinally and amount of remaining gutta-percha on the canal walls was assessed using direct visual scoring with the aid of stereomicroscope. Results were statistically analyzed using ANOVA test. Results Completely clean root canal walls were not achieved with any of the techniques investigated. However, all three systems proved to be effective for gutta-percha removal. Significant difference was found between ProTaper universal retreatment file and H-file, and also between ProFile and H-file. Conclusion Under the conditions of the present study, ProTaper Universal retreatment files left significantly less guttapercha and sealer than ProFile and H-file. Clinical significance Rotary systems in combination with gutta-percha solvents can perform superiorly as compared to the time tested traditional hand instrumentation in root canal retreatment. How to cite this article Shivanand S, Patil CR, Thangala V, Kumar PR, Sachdeva J, Krishna A. To Evaluate and Compare the Efficacy, Cleaning Ability of Hand and Two Rotary Systems in Root Canal Retreatment. J Contemp Dent Pract 2013;14(3):440-444.
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Zhang, Gang, Hai Bo Huang, and Ting Zhang. "The Rigid-Flexible Coupled Modeling and Dynamic Simulation of HP-20 Robot." Applied Mechanics and Materials 101-102 (September 2011): 508–11. http://dx.doi.org/10.4028/www.scientific.net/amm.101-102.508.
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The rigid-flex coupled multi-body dynamic model of Motoman HP20 was built in this paper. The parts geometry shapes were modeled in 3D modeling software and imported into the multi-body platform. Then the joints were added to the parts. The arms were analyzed in FE software and modal neutral files were obtained. Then rigid parts were replaced by the modal neutral files. Driven curves of each arm joint were obtained by D-H method. The modal analysis of system was also made to analyze the robot dynamic characters. The results give some suggestions for robot motor selection and structural dynamic optimization.
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Marassi, Rafael, Ana Grasiela da Silva Limoeiro, Rina Andrea Pelegrine, et al. "Evaluation of pain after endodontic retreatment using reciprocating files or ultrasonic inserts for the desobturation of root canals: a randomized clinical study." Research, Society and Development 10, no. 2 (2021): e32210212649. http://dx.doi.org/10.33448/rsd-v10i2.12649.
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This randomized clinical trial aimed to evaluate the endodontic retreatment techniques influence using reciprocating files and ultrasonic inserts in relation to the incidence, intensity, and postoperative pain duration. Forty-six patients were randomly assigned into two groups: Reciprocant files (RC group); or the Clearsonic Ultrasonic Insert (CL group;). Participants were asked to report the incidence, duration, and postoperative pain intensity using a visual analog scale (VAS) at 24, 48 and 72 h after retreatment. Fisher’s exact test was used to compare the two methods used regarding postoperative pain. The Mann-Whitney test was used to compare pain intensity, and Friedman’s test was used to assess the time effect on pain intensity. Finally, ordinal logistic regression analysis was used to assess the odds ratio for pain occurrence at a significance level of 5%. The postoperative pain incidence was significantly lower in the CL group in all experimental periods. Comparing the two techniques, pain intensity was significantly lower in the CL group after 24 and 48 h. For the RC group, pain intensity was significantly greater at 24 h compared with the other periods. The technique used in endodontic retreatment can influence postoperative pain.
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Abdulaziz Alshareef, Abdulaziz Alshareef. "https://www.kau.edu.sa/Files/320/Researches/61836_32803.pdf." journal of King Abdulaziz University Engineering Sciences 23, no. 1 (2012): 21–37. http://dx.doi.org/10.4197/eng.23-1.2.
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Unit commitment (UC) in power systems typically involves properly scheduling the on/off states as well as the real power outputs (economic dispatch) of all resources (generators/units) in the system. In addition to fulfill a large number of system constraints, the UC meets forecasted load demand calculated in advance, plus the spinning reserve requirement at each time interval, such that the total cost (mainly fuel cost) is minimum. In this paper particle swarm optimization (PSO) is applied to minimize cost, emission or costemission of the Unit Commitment problem. For unit commitment both cost and emission are considered. Actually cost and emission are trade-off. If cost increases, emission decreases and vice-versa. Real power is forecasted and used in the Unit Commitment of the Western Area of Saudi Arabia. The total cost for generation for 24 h is 4332905$ and the emission is 193479 ton.
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Qin, Tiancheng, and S. Rasoul Etesami. "Optimal Online Algorithms for File-Bundle Caching and Generalization to Distributed Caching." ACM Transactions on Modeling and Performance Evaluation of Computing Systems 6, no. 1 (2021): 1–23. http://dx.doi.org/10.1145/3445028.
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We consider a generalization of the standard cache problem called file-bundle caching, where different queries (tasks), each containing l ≥ 1 files, sequentially arrive. An online algorithm that does not know the sequence of queries ahead of time must adaptively decide on what files to keep in the cache to incur the minimum number of cache misses. Here a cache miss refers to the case where at least one file in a query is missing among the cache files. In the special case where l = 1, this problem reduces to the standard cache problem. We first analyze the performance of the classic least recently used (LRU) algorithm in this setting and show that LRU is a near-optimal online deterministic algorithm for file-bundle caching with regard to competitive ratio. We then extend our results to a generalized ( h,k )-paging problem in this file-bundle setting, where the performance of the online algorithm with a cache size k is compared to an optimal offline benchmark of a smaller cache size h < k . In this latter case, we provide a randomized O ( l ln k / k-h )-competitive algorithm for our generalized ( h, k )-paging problem, which can be viewed as an extension of the classic marking algorithm . We complete this result by providing a matching lower bound for the competitive ratio, indicating that the performance of this modified marking algorithm is within a factor of 2 of any randomized online algorithm. Finally, we look at the distributed version of the file-bundle caching problem where there are m ≥ 1 identical caches in the system. In this case, we show that for m = l + 1 caches, there is a deterministic distributed caching algorithm that is ( l 2 + l )-competitive and a randomized distributed caching algorithm that is O ( l ln ( 2l + 1)-competitive when l ≥ 2. We also provide a general framework to devise other efficient algorithms for the distributed file-bundle caching problem and evaluate the performance of our results through simulations.
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Preethi Mariona, Delphine Priscilla Antony S, and Sreedevi Dharman. "Association of type of file fracture and method of removal in a university setting." International Journal of Research in Pharmaceutical Sciences 11, SPL3 (2020): 1761–65. http://dx.doi.org/10.26452/ijrps.v11ispl3.3509.
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Some mishaps tend to occur during treatment in the root canal system, for example, file fractures. The challenge of the removal depends on the type of file fractured and the method which is used to remove it, generally it is decided based on the level of the fracture. Any file can fracture inside the root canal which is based on the curvature, anatomy. Specific techniques and measures have been employed to remove this file from the root canal system. The aim of the study is to find the association of file fracture with the method of removal. The details of all patients who underwent a root canal treatment where noted and the details of 16 patients with file fractures during the procedure were shortlisted. The type of file fractures was analyzed, such as K files, rotary files, H files, other instruments. The method of removal was usually ultrasonic, mechanical, manual or combination of any of the above. Excel tabulation was done and imported to SPSS for results. Chi-square test performed. The most common and used file to fracture in the root canal system was rotary files which had a fracture incidence of 31% and most common method used to retrieve was using ultrasonic of an incidence of 37.5. Chi-square test shows p>0.05, which is statistically not significant. The study concludes that rotary files fracture the most and the method used to retrieve them was mechanical, but as a whole, the most common method used was ultrasonic.
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Castro, Nathaniel John. "Case Files in Surgery. Edited by Eugene C. Toy, Terrence H. Liu, Andre R. Campbell." World Journal of Surgery 31, no. 7 (2007): 1532. http://dx.doi.org/10.1007/s00268-007-9064-9.
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Sarker, Azmal K., Afroza Naznin, Nasreen Sultana, Faria Nasreen, and Lutfun Nisa. "Gated SPECT Myocardial Perfusion Imaging in female patients - an observational study." Bangladesh Journal of Nuclear Medicine 22, no. 2 (2021): 103–7. http://dx.doi.org/10.3329/bjnm.v22i2.51759.
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Background: It had been a general observation that the number of female patients undergoing SPECT myocardial perfusion imaging (MPI) is lower per week.This study was done to find out their proportionand association among their symptoms, history of (h/o) acute coronary syndrome (ACS) and corresponding myocardial perfusion.
 Patients and methods:This cross sectional retrospective study was conducted in 2017 on a group of patients who underwent gated SPECT myocardial perfusion imaging (GSMPI)from February 2005 to October 2016. Clinical record files and image files of all female patients were selected for analysis. The symptoms were retrospectively categorized according to New York Heart Association (NYHA) class while the patients were categorized according to their h/o ACS and myocardial perfusion in each patient was categorized as normal or perfusion defect. Data were analyzed using SPSS v.20.
 Results:Among 1347 patients undergoing GSMPI 196 (14.6%) were female with a 4.4-fold increase in number over 12 years. Mean age was 51.8 ± 10.1 (27-80). Symptom categorization assigned 84 patients in NYHA class I and 112 in NYHA class II. There was no h/o ACS in 143 while 53 had a previous h/o hospitalization due to ACS. GSMPI revealed normal perfusion in 156 patients with mean left ventricular ejection fraction (LVEF) of 66.6 ± 13.6. Perfusion defect was present in 40 patients with mean LVEF of 45.5 ± 15.8. NYHA class of symptoms was not associated with perfusion status (p > 0.05).H/o ACS was found to have association both with NYHA class of symptoms and with perfusions status (p < 0.05).
 Conclusions: Proportion of female patients undergoing GSMPI is low. Presence of perfusion defect in female was not associated with NYHA class of symptom.
 Bangladesh J. Nuclear Med. 22(2): 103-107, Jul 2019
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Vahdani Alviri, Banafsheh, Mehrdad Pourayoubi, Abolghasem Farhadipour, Manpreet Kaur, and Jerry P. Jasinski. "The synergistic co-operation of N—H...O=P hydrogen bonds and C—H...OX weak intermolecular interactions (X is =P or —C) in the (CH3O)2P(O)(NH–NHC6F5) amidophosphoester: a combined X-ray crystallographic and theoretical study." Acta Crystallographica Section C Structural Chemistry 75, no. 10 (2019): 1424–33. http://dx.doi.org/10.1107/s2053229619011641.
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The asymmetric unit of O,O′-dimethyl [(2,3,4,5,6-pentafluorophenyl)hydrazinyl]phosphonate, C8H8F5N2O3P, is composed of two symmetry-independent molecules with significant differences in the orientations of the C6F5 and OMe groups. In the crystal structure, a one-dimensional assembly is mediated from classical N—H...O hydrogen bonds, which includes R 2 2(8), D(2) and some higher-order graph-set motifs. By also considering weak C—H...O=P and C—H...O—C intermolecular interactions, a two-dimensional network extends along the ab plane. The strengths of the hydrogen bonds were evaluated using quantum chemical calculations with the GAUSSIAN09 software package at the B3LYP/6-311G(d,p) level of theory. The LP(O) to σ*(NH) and σ*(CH) charge-transfer interactions were examined according to second-order perturbation theory in natural bond orbital (NBO) methodology. The hydrogen-bonded clusters of molecules, including N—H...O and C—H...O interactions, were constructed as input files for the calculations and the strengths of the hydrogen bonds are as follows: N—H...O [R 2 2(8)] > N—H...O [D(2)] > C—H...O. The decomposed fingerprint plots show that the contribution portions of the F...H/H...F contacts in both molecules are the largest.
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Arslan, Hakan, Ezgi Doğanay Yıldız, Gizem Taş, Ertuğrul Karataş, and Ebru Tepecik. "Effects of continuous irrigation at room temperature or +4ºC on the cyclic fatigue resistance of K3XF instruments." Journal of Dental Research, Dental Clinics, Dental Prospects 14, no. 3 (2020): 153–57. http://dx.doi.org/10.34172/joddd.2020.038.
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Background. The present study aimed to evaluate the impact of continuous irrigation with saline solution at room temperature or +4°C on the cyclic fatigue resistance of K3XF files. Methods. Forty-eight new K3XF files (#30, .04 taper) were randomly assigned to three groups: control group (no irrigation), continuous irrigation with saline solution at room temperature, and continuous irrigation with saline solution at +4°C. The instruments were tested in an artificial, stainless steel root canal with a double curvature at body temperature (37±1°C). Time to fracture was converted to the number of cycles to fracture (NCF). The lengths of the fractured fragments were recorded. Kruskal–Wallis H test and one-way ANOVA were used to analyze data. Results. K3XF files’ cyclic fatigue resistance was significantly higher in the continuous irrigation groups than in the control group. Continuous irrigation with saline solution at +4°C resulted in higher cyclic fatigue resistance than continuous irrigation with saline solution at room temperature. There were no significant differences between the groups in terms of the fractured fragments’ length. Conclusion. Within this study’s limitations, continuous irrigation with saline solution increased the NCF of NiTi instruments; decreasing the saline solution’s temperature increased this effect.
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Krishna, DR Murali, JyothsnaVittoba Setty, Ila Srinivasan, and Anjana Melwani. "Comparison between Rotary (Mtwo) and Manual (H-Files) Techniques for Instrumentation of Primary Teeth Root Canals." Indian Journal of Dental Research 30, no. 6 (2019): 899. http://dx.doi.org/10.4103/ijdr.ijdr_59_18.
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Neavill, Gordon B. "Authority Work: The Creation, Use, Maintenance, and Evaluation of Authority Records and Files. Robert H. Burger." Library Quarterly 56, no. 2 (1986): 222–23. http://dx.doi.org/10.1086/601750.
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Novosaduyk, Tatiana Vladimirovna, and Victoria Vadimovna Tsvetkova. "Method for microscopic monitoring of homeopathic medicines." International Journal of High Dilution Research - ISSN 1982-6206 17, no. 1 (2021): 30–31. http://dx.doi.org/10.51910/ijhdr.v17i1.887.
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We described microscopic observation of the effects of potentiation for the first time in 2002, and presented the results at the 2013 GIRI meeting. The study continued with the development of a visual quality control method using optical microscopy. The theoretical grounds underlying this method derive from high dilution research conducted by Komissarenko [1,2]. 
 
 A ‘crushed’ drop is prepared from a potentized agent with one drop of black ink for microscopy with 20 and 40 magnification. Control consisted in a similarly of a drop of water and a drop of black ink. Visual estimates were performed according to the nature of the black ink particle movement, considering spin rate, randomness severity and/or motion directionality. Specimens were animal, vegetable and mineral origin, in cultivations from 1 to 1500 ÑH prepared by different manufactures from 1995 to 2016.
 
 For many years we looked for a way to visualize the ink particle motion under microscope by means of video files. However, this procedure proved to be too difficult from the technical point of view. Now this problem is solved. Thanks to the collaboration of specialists from St. Petersburg and Russia, a number of video files could be made, that demonstrate the difference of the particle motion black ink in various homeopathic remedies. In this presentation, we will show video files depicting the Brownian motion of ink particles in water and diluted up to 1500cH. All samples had characteristic patterns of ink micro particles motion that were different between control and test samples and also between test samples of previous and consequent dilutions. Gradual acceleration of micro particles spin is observed in samples from 1 to 10 ÑH. The movement remains chaotic. Spin velocity stops increasing from 10 ÑH to 30 ÑH, however movement of particles becomes unidirectional. This effect continues to increase in other samples up to 1500 ÑH. No gaps/leaps of these effects were found in consecutive survey of homeopathized remedies of 1 to 1500 ÑH. These changes are the same in all the investigated homeopathic medicines. The observed phenomenon was so significant, that we could distinguish the level of potentiation of the various homeopathic preparations. 
 
 The directed motion of ink particles in potentized solutions fades when in storage. The molecular motion becomes chaotic again, i.e., it recovers the Brownian pattern when the solutions are agitated. A few shakes are sufficient to completely reconstruct the typical pattern of the original homeopathic preparation. In destroyed homeopathic medicines the pattern of chaotic motion of particles of ink is preserved irrespective of the amount and strength of agitation. 
 
 The method of visual quality control described here easily solves issues related with the performance, storage and use peculiarities of homeopathic medicines. 
 
 To conclude, effects of potentiation can be detected under optical microscopy. The method is simple to perform and allows distinguishing homeopathic medicines in a reliable manner. Therefore, this technique has potential for application in practice and research.
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Boonprakong, Ainel. "The Teaching Files: GastrointestinalThe Teaching Files: Gastrointestinal. By Frank H. Miller and Stephen E. Rubesin. New York, NY: Saunders, 888 pp., 2010. $129 hardcover (ISBN: 978-1416059448)." American Journal of Roentgenology 196, no. 6 (2011): W855. http://dx.doi.org/10.2214/ajr.10.6346.
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Ibrahim, Sarmad K., and Nasser N. Khamiss. "A New Video Coding Approach to The Future Wireless Communication System." Iraqi Journal of Information & Communications Technology 2, no. 1 (2019): 37–47. http://dx.doi.org/10.31987/ijict.2.1.59.
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The current environment of video systems is heterogeneous due to the variety of the devices used in the display such as HD and diversity of data transfer rate from one client to another, which leads to diversity in the resolution of the video for each client. The heterogeneous network systems increase the storage of video files, although that the H.265 reduces the rate of data about to half as compared to H.264, but it stores as the multiple video resolutions of one video on the system in heterogeneous system to satisfy different consumer characteristics and are delivered exploitation broadcast coding.
 The paper solves such problems by proposing a new technology for encoding which depends on scalable core video technique in order to save a bit rate and improve the quality. The results present that the proposed technique is better than H.265, the rate of data transfer which has reduced (about 47%) in HD as compared to the H.265, while the PSNR has increased (about 3 dB) in the same type of resolution.
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Jensen, Travis L., William F. Hooper, Sami R. Cherikh, and Johannes B. Goll. "RP-REP Ribosomal Profiling Reports: an open-source cloud-enabled framework for reproducible ribosomal profiling data processing, analysis, and result reporting." F1000Research 10 (February 24, 2021): 143. http://dx.doi.org/10.12688/f1000research.40668.1.
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Ribosomal profiling is an emerging experimental technology to measure protein synthesis by sequencing short mRNA fragments undergoing translation in ribosomes. Applied on the genome wide scale, this is a powerful tool to profile global protein synthesis within cell populations of interest. Such information can be utilized for biomarker discovery and detection of treatment-responsive genes. However, analysis of ribosomal profiling data requires careful preprocessing to reduce the impact of artifacts and dedicated statistical methods for visualizing and modeling the high-dimensional discrete read count data. Here we present Ribosomal Profiling Reports (RP-REP), a new open-source cloud-enabled software that allows users to execute start-to-end gene-level ribosomal profiling and RNA-Seq analysis on a pre-configured Amazon Virtual Machine Image (AMI) hosted on AWS or on the user’s own Ubuntu Linux server. The software works with FASTQ files stored locally, on AWS S3, or at the Sequence Read Archive (SRA). RP-REP automatically executes a series of customizable steps including filtering of contaminant RNA, enrichment of true ribosomal footprints, reference alignment and gene translation quantification, gene body coverage, CRAM compression, reference alignment QC, data normalization, multivariate data visualization, identification of differentially translated genes, and generation of heatmaps, co-translated gene clusters, enriched pathways, and other custom visualizations. RP-REP provides functionality to contrast RNA-SEQ and ribosomal profiling results, and calculates translational efficiency per gene. The software outputs a PDF report and publication-ready table and figure files. As a use case, we provide RP-REP results for a dengue virus study that tested cytosol and endoplasmic reticulum cellular fractions of human Huh7 cells pre-infection and at 6 h, 12 h, 24 h, and 40 h post-infection. Case study results, Ubuntu installation scripts, and the most recent RP-REP source code are accessible at GitHub. The cloud-ready AMI is available at AWS (AMI ID: RPREP RSEQREP (Ribosome Profiling and RNA-Seq Reports) v2.1 (ami-00b92f52d763145d3)).
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Amreev, M., R. Safin, V. Yakubov, and T. Pavlova. "CHOOSING A COMPRESSION STANDARD FOR TRANSMITTING A TELEVISION IMAGE." PHYSICO-MATHEMATICAL SERIES 5, no. 333 (2020): 5–9. http://dx.doi.org/10.32014/2020.2518-1726.76.
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With the advent of the MPEG-4 Visual and H.264 compression standards, the role of the MPEG-2 compression standard has not diminished at the present time, since these standards are largely compatible, especially for information highways. Today, in a number of countries, the MPEG-2 compression standard is actually the main one for broadcasting, the functioning of which is based on the operation of DVB-T terrestrial digital television systems. Due to the fact that the majority of the currently used STBs support the MPEG-2 standard, it will remain widespread for at least the next few years. The ITU-T H.264 /MPEG-4 Part 10 AVC standard (abbreviated as H.264/AVC) is a promising new technology for encoding and compressing audiovisual information. The compression efficiency of the H.264/AVC standard is higher than the MPEG-2 standard with equal visual perception. The H.264/AVC standard was developed independent of the transport layer of the transmission systems used. Therefore, information delivery in the H.264/AVC standard can be carried out using any existing transmission and broadcasting systems, including: systems with IP protocols (including streaming delivery), transport streams of broadcasting systems in the MPEG-2 standard, as well as specific formats H.264 / AVC files for storage and processing on servers.
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Sood, Himanshu, Pravin Kumar, SurekhaPuri Bhat, Jitendra Lohar, SandhyaKapoor Punia, and Rahul Bhargava. "Comparison of efficiency of manual(H-Files) and two rotary niti retreatment systems(Mtwo R files and HyFlex NT files) in removing Gutta-percha from root canals obturated with two different sealers by using stereomicroscope - An in vitro study." Endodontology 29, no. 2 (2017): 95. http://dx.doi.org/10.4103/endo.endo_16_17.
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PAKSOY, Ahmet Emre, Kerim ÖNER, Ferdi POLAT, and Serhat DURUSOY. "Is 48 h a critical cut-off point for mortality in geriatric hip fractures?" TURKISH JOURNAL OF MEDICAL SCIENCES 50, no. 6 (2020): 1546–51. http://dx.doi.org/10.3906/sag-2003-194.
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Background/aim: In this study, our objective was to evaluate the mortality in geriatric hip fracture patients who were operated within 48 h after admission or after the 48thh. Materials and methods: A total of 194 patients who had undergone surgery for hip fracture between 2016 and 2018 were retrospectively evaluated. Patient information was obtained from the hospital’s database using the ICD codes 81.52, 82.00–82.09, and 82.10. Radiological examination reports were collected from the patient files. Information on mortality was obtained from the Death Notification System of the Turkish Ministry of Health. First-year mortality rates of patients operated within 48 h (Group 1) and those operated at 48–96 h (Group 2) were compared.Results: The mean duration between admission to the hospital and surgical intervention was 33.90 ± 1.95 h (3–96 h). The mean total hospitalization time was 7.29 ± 1.53 days (2–36 days). Of the patients, 62 (32%) died within one year after the operation. The mean survival times for patients operated ≤48 h or >48 h were 8.47 ± 1.90 and 6.57 ± 2.59 months, respectively (Z = 1.074, P = 0.283). There was no significant correlation between survival time and the time delay before the operation (r = –0.103, P = 0.153). Additionally, the Cox regression analysis, including age (years), ASA (grade 3 vs. 2), time to operation (h), and days spent in the ICU, demonstrated no significant independent effect of the time to operation on survival (P = 0.200).Conclusion: Although shortening the time to surgery may have some rationale, we did not find any difference in patients operated before 48 h compared to 48–96 h concerning mortality.
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Pantea, Mihaela, Robert Ciocoiu, Ana Maria Cristina Tancu, et al. "Comparative Study on Two Methods Used in Obtaining 3D Printed Dental Models." Materiale Plastice 56, no. 4 (2019): 812–16. http://dx.doi.org/10.37358/mp.19.4.5270.
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The purpose of this study was to assess the accuracy of two 3D printed dental models manufactured after intraoral/IO and extraoral/EO scanning. A dental study model (KaVo Dental GmbH/Germany) was used as a reference for this research; this model was scanned with an industrial scanner (XT H 225 ST/Industrial CT scan/Nikon Metrology Inc./U.S.A.) and a reference STL file was generated (coded M1). Two 3D printed models (Form2/FormLabs Inc./U.S.A.) were produced via IO scanning (TRIOS 3 Battery Cart/3 Shape/Denmark), respectively via EO scanning (Swing Dental Scanner/Dof Inc./South Korea) of the reference dental model. The 3D printed models obtained were scanned with the industrial scanner, resulting in other two STL files (coded M2, respectively M3). All the STL files obtained (reference M1; M2; M3) were compared in pairs, using a 3D analysis software. Good results were achieved in obtaining 3D printed dental models via IO or EO scanning, yet, the 3D printed dental model obtained via IO scanning (M3) showed slightly improved dimensional compatibility with the reference model (M1) in comparison with the 3D printed dental model manufactured via EO scanning (M2).
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Porter, John R. "Use of EDS mapping to characterize thermochemical stability of fibers in intermetallic matrix composites." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 1 (1992): 160–61. http://dx.doi.org/10.1017/s042482010012120x.
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New ceramic fibers, currently in various stages of commercial development, have been consolidated in intermetallic matrices such as γ-TiAl and FeAl. Fiber types include SiC, TiB2 and polycrystalline and single crystal Al2O3. This work required the development of techniques to characterize the thermochemical stability of these fibers in different matrices.SEM/EDS elemental mapping was used for this work. To obtain qualitative compositional/spatial information, the best realistically achievable counting statistics were required. We established that 128 × 128 maps, acquired with a 20 KeV accelerating voltage, 3 sec. live time per pixel (total mapping time, 18 h) and with beam current adjusted to give 30% dead time, provided adequate image quality at a magnification of 800X. The maps were acquired, with backgrounds subtracted, using a Noran TN 5500 EDS system. The images and maps were transferred to a Macintosh and converted into TIFF files using either TIFF Maker, or TNtolMAGE, a Microsoft QuickBASIC program developed at the Science Center. From TIFF files, images and maps were opened in either NIH Image or Adobe Photoshop for processing and analysis and printed from Microsoft Powerpoint on a Kodak XL7700 dye transfer image printer.
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Feltkamp, H. "Drug Master Files, Global Harmonization of Quality Standards, Hrsg. H. Möller und W. H. Oeser, Paperback APV, Bd. 30, Wissenschaftliche Verlagsgesellschaft mbh Stuttgart 1992, Kart., DM 89,-." Pharmazie in Unserer Zeit 22, no. 4 (1993): 198–99. http://dx.doi.org/10.1002/pauz.19930220417.
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Golebiowski, T., A. S. Leong, and J. F. Panozzo. "Near Infrared Reflectance Spectroscopy of Oil in Intact Canola Seed (Brassica Napus L.). II. Association between Principal Components and oil Content." Journal of Near Infrared Spectroscopy 13, no. 5 (2005): 255–64. http://dx.doi.org/10.1255/jnirs.556.
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This work reports that the measurements of the likeness or the uniqueness of the 1100–2500 nm reflectance spectra of intact canola seed determined from principal component analysis (PCA) approximated spectra with global H or neighbourhood H statistics were not associated with oil concentration within the seed. The absence of stability in association between the H measurements and oil content was related to inconsistency in the amount and distribution (between principal components) of the spectral variation correlated to the oil content within and between different batches of canola seed. PCA was used to approximate variation in the 1100–2500 nm, second order derivative, reflectance spectra of intact canola seed, acquired from 15 batches of seed samples. The first eight principal components (PCs) captured 97.14% to 99.35% of the total variance in the spectra. The amount of variation captured by individual components was independent of the number of samples in the batch and oil content within the seed. The pattern of variance distribution among principal components was inconsistent and highlighted the uniqueness of the origin of the spectral variation in each batch of canola seed. In this study, the strength of correlation between oil content and principal components was used as a measure of component significance to the analysis of oil in the intact canola seed. In the examined sets of spectra, oil content was correlated to the low order components, PC1 to PC4. In the 15 files of spectra, oil content showed the strongest correlation to PC2 in eight sets of data, to PC3 in four sets of data and to PC1 in three sets of data. The strength of association between oil and the individual components varied considerably in magnitude among examined files of spectra; r2 = 0.28–0.81 for the first strongly correlated component, r2 = 0.05–0.29 for the second and r2 = 0.02–0.19 for the third. The position of the PCs in the correlation sequence was inconsistent and underlined differences of oil signal/spectral data interactions in the individual sets of data. Examination of principal component loadings showed that in the reported files of spectra, principal components correlated to the oil content frequently captured variance at segments, which denote absorptions specific and accidental to canola oil. The outline of the loadings did not conform to a single, regular pattern common to all sets of data. The reported results are in disagreement with rationale of the methodology, which involves the spectra matching techniques for validating the predictive efficiency of near infrared (NIR) calibrations. The reported results highlighted that the reliable NIR quantification of oil content from reflectance spectra of intact canola seed would require an independent validation for every acquired set of spectra.
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Pasari, Srikanth, Narender Reddy, Shilpa Reddy Admala, Sainath Dinapadu, Manoranjan P. Reddy, and MS Rama Rao. "Comparative Analysis of Efficacy and Cleaning Ability of Hand and Rotary Devices for Gutta-Percha Removal in Root Canal Retreatment: An in vitro Study." Journal of Contemporary Dental Practice 14, no. 4 (2013): 635–43. http://dx.doi.org/10.5005/jp-journals-10024-1377.
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ABSTRACT Aim of the study To evaluate the efficacy and cleaning ability of Hedstrom files, and ProTaper retreatment instruments in removing gutta-percha from root canals with and without xylene as solvent. Materials and methods Sixty extracted single rooted human teeth were selected and decoronated, straight access established working length determined 1 mm short of canal, chemomechanical preparation done and obturated with guttapercha and AH plus sealer. Samples were stored for 1 week in humidifier divided into four groups of 15 teeth each. • Group I Hedstrom files without xylene. • Group II Hedstrom files with xylene. • Group III ProTaper retreatment instruments without xylene. • Group IV ProTaper retreatment instruments with xylene. and the following criteria were assessed – Time taken for initial plunge of instrument into guttapercha. – Time taken for complete removal of gutta-percha to reach working length – Ability of H files and ProTaper retreatment files with/ without xylene to remove gutta-percha in coronal, middle and apical 1/3 of canal. The teeth were grooved in labiolingual cross section, observed under a steromicroscope and scored according to gutta-percha debris left in the canal. Results were evaluated using ANOVA test and multiple comparisons done using Scheffe test. Results The least time to reach working length was found with group IV followed by groups III, II and group I respectively. Also the fastest way to remove maximum gutta-percha was group IV followed by groups III, II, and I respectively with a statistically significant difference among all groups. Apical 1/3 has more amount of remaining gutta-percha debris than middle and coronal 1/3 in all groups. The amount of gutta-percha debris in apical 1/3 was least in group IV followed by groups III, II and I respectively. Discussion The better performance of ProTaper rotary instruments has been attributed to their special flute design which tends to pull gutta-percha coronally directing it toward orifice. Also the movements of engine driven instruments produce frictional heat which plasticises gutta-percha and aids in easy removal. Apical third of root canals showed more gutta percha debris compared to coronal and middle 1/3 and has been attributed to the greater anatomic variability and difficulty of instrumentation in the apical area. The existence of deep groves and depressions on dentine walls in this apical 1/3 make them less instrumented areas as it did be difficult to direct the file against the extreme root canal wall. Conclusion The fastest technique to remove gutta-percha and the shortest time to reach working length was observed with ProTaper retreatment instruments with xylene followed by ProTaper retreatment files without xylene and Hedstrom files without xylene. After instrumentation for removal of gutta-percha, apical third was found to have more debris compared to coronal and middle 1/3 of the root canal. How to cite this article Reddy N, Admala SR, Dinapadu S, Pasari S, Reddy PM, Rao MSR. Comparative Analysis of Efficacy and Cleaning Ability of Hand and Rotary Devices for gutta-percha Removal in Root Canal Retreatment: An in vitro Study. J Contemp Dent Pract 2013;14(4):635-643.
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Gomes de Oliveira, Geilson, Renata Mirian Nunes Eleutério, Ana Katherine Silveira Gonçalves, Paulo César Giraldo, and José Eleutério Jr. "Atypical Squamous Cells in Liquid-Based Cervical Cytology: Microbiology, Inflammatory Infiltrate, and Human Papillomavirus-DNA Testing." Acta Cytologica 62, no. 1 (2017): 28–33. http://dx.doi.org/10.1159/000481654.
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Objective: The aim of this study was to assess the correlation between atypical squamous cells (ASC) and inflammatory infiltrate and vaginal microbiota using cervical liquid-based cytological (SurePath®) and high-risk human papillomavirus (HR-HPV) tests. Study Design: A cross-sectional study was conducted using a 6-year database from a laboratory in Fortaleza (Brazil). Files from 1,346 ASC cases were divided into subgroups and results concerning inflammation and vaginal microorganisms diagnosed by cytology were compared with HR-HPV test results. Results: An absence of specific microorganisms (ASM) was the most frequent finding (ASC of undetermined significance, ASC-US = 74%; ASC - cannot exclude high-grade squamous intraepithelial lesion, ASC-H = 68%), followed by bacterial vaginosis (ASC-US = 20%; ASC- H = 25%) and Candida spp. (ASC-US = 6%; ASC-H = 5%). Leukocyte infiltrate was present in 71% of ASC-US and 85% of ASC-H (p = 0.0040), and in these specific cases HR-HPV tests were positive for 65 and 64%, respectively. A positive HR-HPV test was relatively more frequent when a specific microorganism was present, and Candida spp. was associated with HR-HPV-positive results (p = 0.0156), while an ASM was associated with negative HR-HPV results (p = 0.0370). Conclusion: ASC-US is associated with an absence of inflammation or vaginosis, while ASC-H smears are associated with Trichomonas vaginalis and inflammatory infiltrate. A positive HR-HPV is associated with Candida spp. in ASC cytology.
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Szemraj-Folmer, Agnieszka, Anna Wojtaszek-Słomińska, Bogna Racka-Pilszak, and Małgorzata Kuc-Michalska. "Duration of the pubertal growth spurt in patients with increased craniofacial growth component in sagittal and vertical planes—retrospective and cross-sectional study." Clinical Oral Investigations 25, no. 8 (2021): 4907–14. http://dx.doi.org/10.1007/s00784-021-03799-7.
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Abstract Objectives The aim of the study is to assess the skeletal age at the onset and end of the pubertal growth spurt and determine its duration in four growth type groups: (1) normodivergent skeletal Class I (I N), (2) normodivergent skeletal Class III (III N), (3) high-angle skeletal Class III (III H) and (4) high-angle skeletal Class I (I H). Materials and methods Two hundred thirteen subjects were selected from 2163 examined files. The cervical vertebral maturation stage was recorded by means of Baccetti’s method. The sagittal and vertical skeletal relations were evaluated according to Steiner analysis with Kaminek’s modification. The duration of the pubertal growth spurt was calculated from the difference between the means of the chronological age related to CS3 and CS4 maturation stages. Results The shortest lasting pubertal growth spurt was observed in group I N (1.1), followed by group III N (1.6). Major differences between arithmetic means CS4-CS3 were seen in groups I H and III H (2.3 and 2.7, respectively). Conclusions The following tendency was observed in the duration of the pubertal growth spurt: I N < III N < I H < III H. This tendency has statistical significance only in high-angle patients in comparison with normodivergent skeletal Class I. Clinical relevance Knowledge on the longer pubertal growth spurt in high-angle patients compared to patients with normal anteroposterior and vertical relationships can be useful in the selection of an appropriate therapeutic method and a treatment time.
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Alakabani, Tarek-Fahed, Vicente Faus-Llácer, Ignacio Faus-Matoses, et al. "The Efficacy of Rotary, Reciprocating, and Combined Non-Surgical Endodontic Retreatment Techniques in Removing a Carrier-Based Root Canal Filling Material from Straight Root Canal Systems: A Micro-Computed Tomography Analysis." Journal of Clinical Medicine 9, no. 6 (2020): 1989. http://dx.doi.org/10.3390/jcm9061989.
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The aim of this study is to analyze and compare the efficacy of three non-surgical endodontic retreatment techniques in removing a carrier-based root canal filling material from straight root canal systems. The study was performed on 99 single-rooted extracted teeth using the ProTaper Gold endodontic rotary system up to the F2 file (Dentsply Maillefer, Baillagues, Switzerland), which were sealed with GuttaCore (Dentsply Maillefer, Ballaigues, Switzerland) and AH plus epoxy resin sealer (Dentsply DeTrey, Konstanz, Germany) and randomly assigned to the following non-surgical retreatment techniques: ProTaper Retreatment endodontic rotary instruments (D1–D3 files, Dentsply Maillefer, Ballaigues, Switzerland; n = 33, PTR), Reciproc Blue endodontic reciprocating instrument (R50, VDW, Munich, Germany; n = 33, RCB50), and a combined root canal retreatment technique between Gates-Glidden drills (sizes #3 and #2, Dentsply Maillefer, Ballaigues, Switzerland) and Hedstrom files (file size 35, 30, and 25, Dentsply Maillefer, Ballaigues, Switzerland; n = 33; H-GG). All of the teeth were submitted twice to a micro-computed tomography (micro-CT) scan, before and after non-surgical endodontic retreatment procedures. The volume of root canal filling material (mm3), volume of remaining root canal filling material (mm3), non-surgical endodontic retreatment working time (min), proportion of remaining root canal filling material (%), and efficacy of root canal filling material removal between the non-surgical endodontic retreatment techniques were analyzed using ANOVA one-way statistical analysis. Statistically significant differences were observed between the proportions of remaining root canal filling material of PTR and H-GG (p = 0.018), between the non-surgical endodontic retreatment working times (min; p < 0.001), and between the efficacies of root canal filling material removal by the non-surgical endodontic retreatment techniques (p = 0.009). However, the non-surgical endodontic retreatment systems allow for similar carrier-based root canal filling material removal.
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Park, Jong Min, Chang Heon Choi, Hong-Gyun Wu, and Jung-in Kim. "Correlation of the gamma passing rates with the differences in the dose-volumetric parameters between the original VMAT plans and actual deliveries of the VMAT plans." PLOS ONE 15, no. 12 (2020): e0244690. http://dx.doi.org/10.1371/journal.pone.0244690.
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Purpose The aim of this study was to investigate the correlations of the gamma passing rates (GPR) with the dose-volumetric parameter changes between the original volumetric modulated arc therapy (VMAT) plans and the actual deliveries of the VMAT plans (DV errors). We compared the correlations of the TrueBeam STx system to those of a C-series linac. Methods A total of 20 patients with head and neck (H&N) cancer were retrospectively selected for this study. For each patient, two VMAT plans with the TrueBeam STx and Trilogy (C-series linac) systems were generated under similar modulation degrees. Both the global and local GPRs with various gamma criteria (3%/3 mm, 2%/2 mm, 2%/1 mm, 1%/2 mm, and 1%/1 mm) were acquired with the 2D dose distributions measured using the MapCHECK2 detector array. During VMAT deliveries, the linac log files of the multi-leaf collimator positions, gantry angles, and delivered monitor units were acquired. The DV errors were calculated with the 3D dose distributions reconstructed using the log files. Subsequently, Spearman’s rank correlation coefficients (rs) and the corresponding p values were calculated between the GPRs and the DV errors. Results For the Trilogy system, the rs values with p < 0.05 showed weak correlations between the GPRs and the DV errors (rs<0.4) whereas for the TrueBeam STx system, moderate or strong correlations were observed (rs≥0.4). The DV errors in the V20Gy of the left parotid gland and those in the mean dose of the right parotid gland showed strong correlations (always with rs > 0.6) with the GPRs with gamma criteria except 3%/3 mm. As the GPRs increased, the DV errors decreased. Conclusion The GPRs showed strong correlations with some of the DV errors for the VMAT plans for H&N cancer with the TrueBeam STx system.
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Crispim, Sandra P., Genevieve Nicolas, Corinne Casagrande, et al. "Quality assurance of the international computerised 24 h dietary recall method (EPIC-Soft)." British Journal of Nutrition 111, no. 3 (2013): 506–15. http://dx.doi.org/10.1017/s0007114513002766.
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The interview-administered 24 h dietary recall (24-HDR) EPIC-Soft®has a series of controls to guarantee the quality of dietary data across countries. These comprise all steps that are part of fieldwork preparation, data collection and data management; however, a complete characterisation of these quality controls is still lacking. The present paper describes in detail the quality controls applied in EPIC-Soft, which are, to a large extent, built on the basis of the EPIC-Soft error model and are present in three phases: (1) before, (2) during and (3) after the 24-HDR interviews. Quality controls for consistency and harmonisation are implemented before the interviews while preparing the seventy databases constituting an EPIC-Soft version (e.g. pre-defined and coded foods and recipes). During the interviews, EPIC-Soft uses a cognitive approach by helping the respondent to recall the dietary intake information in a stepwise manner and includes controls for consistency (e.g. probing questions) as well as for completeness of the collected data (e.g. system calculation for some unknown amounts). After the interviews, a series of controls can be applied by dietitians and data managers to further guarantee data quality. For example, the interview-specific ‘note files’ that were created to track any problems or missing information during the interviews can be checked to clarify the information initially provided. Overall, the quality controls employed in the EPIC-Soft methodology are not always perceivable, but prove to be of assistance for its overall standardisation and possibly for the accuracy of the collected data.
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Seoulinda, Nena, and Aries Wicaksono. "Evaluasi Pengendalian Internal dan Sistem Akuntansi atas Penerimaan Kas dan Piutang Premi Asuransi pada PT H." Binus Business Review 3, no. 2 (2012): 983. http://dx.doi.org/10.21512/bbr.v3i2.1369.
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PT H is an insurance company that only serves a group of life insurance. The purpose of this research is to evaluate the entity’s internal control and accounting system on cash receipt and insurance premium receivables. To conduct the research, the researcher used a method based on Committe of Sponsoring Organization or usually known as COSO. The data were collected from literatures such as textbooks, and other references, such as theories and scientific opinions related to this topic. Apart from the theories, researcher performed interviews, spread questionnaries, and observations to the entity. The internal control and accounting system in PT H has been well organized by the management and in accordance with the standards and the Entity’s policy. But other than that, the researcher found several weakness that should be a concern of management, especially on the Entity’s documentation and the delivery of information. Therefore, the researcher recommends that serial number in documents such as receipt, payment request form, and accounting request form should have been printed; to create a new company policy related to the delivery and receiving of files; and to make a written rules related to the Entity’s code of ethics and rules how to deliver information between sections and subsections.
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Kain, John S., Scott R. Dembek, Steven J. Weiss, Jonathan L. Case, Jason J. Levit, and Ryan A. Sobash. "Extracting Unique Information from High-Resolution Forecast Models: Monitoring Selected Fields and Phenomena Every Time Step." Weather and Forecasting 25, no. 5 (2010): 1536–42. http://dx.doi.org/10.1175/2010waf2222430.1.
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Abstract A new strategy for generating and presenting model diagnostic fields from convection-allowing forecast models is introduced. The fields are produced by computing temporal-maximum values for selected diagnostics at each horizontal grid point between scheduled output times. The two-dimensional arrays containing these maximum values are saved at the scheduled output times. The additional fields have minimal impacts on the size of the output files and the computation of most diagnostic quantities can be done very efficiently during integration of the Weather Research and Forecasting Model. Results show that these unique output fields facilitate the examination of features associated with convective storms, which can change dramatically within typical output intervals of 1–3 h.
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Ogneva, Irina V., Maria A. Usik, Maria V. Burtseva, et al. "Drosophila melanogaster Sperm under Simulated Microgravity and a Hypomagnetic Field: Motility and Cell Respiration." International Journal of Molecular Sciences 21, no. 17 (2020): 5985. http://dx.doi.org/10.3390/ijms21175985.
Full textAbstract:
The role of the Earth’s gravitational and magnetic fields in the evolution and maintenance of normal processes of various animal species remains unclear. The aim of this work was to determine the effect of simulated microgravity and hypomagnetic conditions for 1, 3, and 6 h on the sperm motility of the fruit fly Drosophila melanogaster. In addition to the usual diet, the groups were administered oral essential phospholipids at a dosage of 500 mg/kg in medium. The speed of the sperm tails was determined by video recording and analysis of the obtained video files, protein content by western blotting, and cell respiration by polarography. The results indicated an increase in the speed of movement of the sperm tails after 6 h in simulated microgravity. The levels of proteins that form the axoneme of the sperm tail did not change, but cellular respiration was altered. A similar effect occurred with the administration of essential phospholipids. These results may be due to a change in the level of phosphorylation of motor proteins. Exposure to hypomagnetic conditions led to a decrease in motility after 6 h against a background of a decrease in the rate of cellular respiration due to complex I of the respiratory chain. This effect was not observed in the flies that received essential phospholipids. However, after 1 h under hypomagnetic conditions, the rate of cellular respiration also increased due to complex I, including that in the sperm of flies receiving essential phospholipids.
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Luong, Nguyen Thanh, Ta Huy Thinh, and Vu Dinh Thong. "Diversity and ecology of bat flies (Diptera: Nycteribiidae, Streblidae) from Cat Ba National Park." TAP CHI SINH HOC 40, no. 1 (2017): 7–12. http://dx.doi.org/10.15625/0866-7160/v40n1.10746.
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Cat Ba National Park contains a high diversity fauna of bats including a species endemic to Vietnam. Since 1999, we conducted a series of bat surveys in the park with an investigation into bat files. All individuals of flies collected from each bat individual were preserved in a plastic tube filled with pure alcohol. They were analysed and identified at the Institute of Ecology and Biological Resources. Results from our research provide records of 8 bat fly species belonging to 4 genera, 2 families; of these, 3 species belong to the family Nycteribiidae (Basila roylii, B. burmensis, B. pundibunda) and 5 remaining ones belong the family Streblidae (Ascodipteron phyllorhinae, A. wenzeli, Brachytarsina amboiensis, B. cucullata, Maabella stomalata). These fly species parasitize 8 bat species belonging to 4 families: 5 species of Hipposideridae (Hipposideros alongensis, H. armiger, H. grandis, H. khoukhouayensis, H. pomona), 1 species of Miniopteridae (Miniopterus fuliginosus), 1 species of Rhinolophidae (Rhinolophus marshalli) and 1 species of Vespertilionidae (Hypsugo pulveratus). Basilia pundibunda was the most common bat fly species within the study area. The first data on ecological correlation between flies and bats from Vietnam were also recorded and given in this paper. Citation: Nguyen Thanh Luong, Ta Huy Thinh, Vu Dinh Thong, 2018. Diversity and ecology of bat flies (Diptera: Nycteribiidae, Streblidae) from Cat Ba National Park. Tap chi Sinh hoc, 40(1): x-xx. DOI: 10.15625/0866-7160/v40n1.10746. *Corresponding author: vudinhthong@hotmail.com Received 22 September 2017, accepted 2 December 2017
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Agiwahyuanto, Faik, Shinta Octaviasuni, and Moh Umar Nauful Fajri. "Analisis Implementasi Total Quality Management (TQM) Pada Kasus Pending Klaim Jaminan Kesehatan Nasional (JKN) Di RSUD Kendal Tahun 2018." Jurnal Manajemen Kesehatan Indonesia 7, no. 3 (2019): 171–80. http://dx.doi.org/10.14710/jmki.7.3.2019.15-24.
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Background: Improvements in hospitals are needed to become a going concern hospital. One strategy that can be applied is Total Quality Management (TQM). TQM seeks continuous improvement of all hospital functions. The National Health Insurance Program (JKN) has been run by the Regional Hospital General Hospital (RSUD) Dr. H. Soewondo Kendal as of January 1st, 2014. Health financing is the most important part of implementing JKN held in hospitals by BPJS Kesehatan through submission of claims. During the implementation of JKN in Kendal General Hospital, problems were found between the difference between the visits of BPJS Health patients to hospitalizations and the Health BPJS visits claimed, thus causing pending cases of late claims. File claims that are late in submission will be included in the claim process the following month.Objective: Analyze the pending causes of the Health BPJS file based on TQM implementation.Method: This type of research uses qualitative phenomenological methods and case study research designs. The research subjects were 7 officers who were directly involved in the claim process. The research instrument is the patient claim file by paying BPJS Kesehatan. Data analysis using the Importance Performance Analysis (IPA) technique.Summary: Pending causes of claims from casemix manpower factors with educational background not medical records and lack of coding staff. The factor of the casemix section method is no Standard Operating Procedure (SOP) for claiming BPJS Health. Material factors still have claims files that cannot be submitted due to inappropriate SEP numbers or often purif. Casemix machine factors (INA CBGs) already use computers and printers. The money factor for hospital income was delayed due to pending claims and claims that failed to purify.Conclusion: The process of implementing the BPJS Health claim in Dr. Hospital H. Soewondo Kendal is in accordance with the theory but there are still file claims that are pending.Suggestion: Organize education to officers intensively and standardize the time of collecting investigations and operating reports to medical records so that the files will be claimed as soon as possible and sent to BPJS.
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El-Sebaaie, Amr Farag, Samya Ahmed Youssef, Osama Abed El-Fatah Hassan, Hala Adel Aggina, Nehal Saad Zafer, and Mahmoud Slah Abed El-Slam. "Evaluation of the Expression of MDM2 & CD44v6 in Hodgkin’s Lymphoma." Blood 110, no. 11 (2007): 4389. http://dx.doi.org/10.1182/blood.v110.11.4389.4389.
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Abstract Owing to the advances made in the fields of immunology and molecular biology, identification of biological factors with potential factors with potential prognostic signficance in HL were tried aiming to prevent primary resistance or relapse with as efficient first-line of treatment as possible . biological markers as cell cycle molecules (MDM) and adhesion molecules (CD44V6) were studied in current research on 100 cases of already diagnosed HL of different subtypes using specific monclonal antibodies and Envision detection kit as a staining system. The 100 cases studied comprised 70 males and 30 females, in a ratio of 7:3. The cases were retrived from files of pathology department, El-Maddi Hospital, cairo, Egypt from 1990–2000. The age ranged between 11–68 years with mean age in males of 40.8+/− 13.39 years in males and 35.8 +/− 18.9 in females. Cases were reclassified according to WHO classfication, 2002. Follow up period of 5 years was obtained from files of all patients including 2-years free disease and 5 years overall survival. In 53% of cases studied (53/100) a variable proprtion of H&RS cells expressed MDM2 that was strictly confined to the nuclei, particularly the nucleoplasm, while 30% (30/100)of the studied cases expressed CD44V6 as membranous staining with a variable proprtion In H&RS cells. A significant staistical correlation between expression of MDM2& CD44v6 with both age groups (P<0.05 & P<0.001) and subtypes of HL (P>0.05 & P>0.001) respectively were found. An inverse signficant stastical correlation between MDM2 expression and both 2 years free and 5-years free survival (P> 0.001 & P<0.001) was detcted. also a same relation was seen and both prognostic parameters (P>0.001 & P< 0.001) respectively. A strong signficant correlation between MDM2 and CD44V6 immunoreasctivites was expressed (P< 0.001). Our findings suggest that combined use of MDM2 and CD44v6 could be powerful prognostic factor in both presdiction of relapse and overall survival.