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Journal articles on the topic 'Position'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 June 2025

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1

Wagner, A., M. Butterling, F. Fiedler, F. Fritz, M. Kempe, and T. E. Cowan. "Position-resolved Positron Annihilation Lifetime Spectroscopy." Journal of Physics: Conference Series 443 (June 10, 2013): 012091. http://dx.doi.org/10.1088/1742-6596/443/1/012091.

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2

Reay, Donald T., and John D. Howard. "Restraint Position and Positional Asphyxia." American Journal of Forensic Medicine and Pathology 20, no. 3 (1999): 300–301. http://dx.doi.org/10.1097/00000433-199909000-00016.

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3

Chan, Theodore C., Gary M. Vilke, Tom Neuman, and Jack L. Clausen. "Restraint Position and Positional Asphyxia." Annals of Emergency Medicine 30, no. 5 (1997): 578–86. http://dx.doi.org/10.1016/s0196-0644(97)70072-6.

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4

Lawlor, Andrea. "Position Paper #14: The Pacific Gyre, and: Position Paper #18: Insurance, and: Position Paper #19: Donald Trump, and: Position Paper #20: Positions." Ploughshares 43, no. 1 (2017): 110–13. http://dx.doi.org/10.1353/plo.2017.0015.

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5

Hammond, David Ian, and Brian C. Lentle. "Position, Position." Radiology 271, no. 3 (2014): 926–27. http://dx.doi.org/10.1148/radiol.14140346.

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6

Zhao, Zhijian, Junhong Fan, Yang Liu, Jean de la Rosette, and Guohua Zeng. "Percutaneous nephrolithotomy: position, position, position!" Urolithiasis 46, no. 1 (2017): 79–86. http://dx.doi.org/10.1007/s00240-017-1019-5.

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7

Brookler, Kenneth. "Positional Nystagmus in Only One Position." Ear, Nose & Throat Journal 78, no. 11 (1999): 834. http://dx.doi.org/10.1177/014556139907801106.

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8

Falahatkar, Siavash, and Mojtaba Teimoori. "Re: percutaneous nephrolithotomy—position, position, position!" Urolithiasis 46, no. 5 (2018): 501. http://dx.doi.org/10.1007/s00240-018-1046-x.

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9

Cho, Jang Ho, Hyoung Il Son, Tapomayukh Bhattacharjee, Dong Gun Lee, and Doo Yong Lee. "Position-Position Control with Gain-Scheduling for Telesurgical Systems." Abstracts of the international conference on advanced mechatronics : toward evolutionary fusion of IT and mechatronics : ICAM 2010.5 (2010): 283–88. http://dx.doi.org/10.1299/jsmeicam.2010.5.283.

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10

Nechiporenko, Alexander V. "The Concept of Position and Positional Thinking." Siberian Journal of Philosophy 18, no. 2 (2020): 195–207. http://dx.doi.org/10.25205/2541-7517-2020-18-2-195-207.

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The paper elaborates on and develops the concept of “position”. Drawing on the examples from the history of science and philosophy from G. Galileo to the works of the Moscow Methodological Circle in the second half of the 60s - early 70s of the 19th century the author considers the cultural phenomenon of positional thinking. Special attention is paid to the philosophy of I.G. Fichte. An assumption is made and substantiated that Fichte’s dialectics is a model of specifically positional thinking and provides a basis for determining the objective content of the concept of “position”. The paper also describes the context of the emergence of positional schemes, their specific structure and use in the works of MMK as a normative-logical apparatus, an alternative to formal logic. It also outlines the area of topical problems associated with the concept of “position”.

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11

Schwan, H., Wenjing Jin, T. E. Corbin, et al. "Commission 8: Positional Astronomy: (Astronomie de Position)." Transactions of the International Astronomical Union 24, no. 1 (2000): 21–31. http://dx.doi.org/10.1017/s0251107x00002558.

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The present triennial commission report embraces mainly activities in wide angle, optical astrometry. With the successful development and application of new techniques from Earth (e.g. optical interferometry, CCD’s) and space (Hipparcos mission and new projects) the sub-division between Commissions 8 (Positional Astrometry) and 24 (Photographic Astrometry) has become questionable. During the GA at Kyoto in 1997 all steps for a merger of both commissions have been taken. The final merging will take place at the forthcoming GA in Manchester. For a more complete overview on astrometrical work done in the past triennium the reader should also take notice of the report of Commission 24.

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12

Requième, Y., M. Miyamoto, P. Benevides-Soares, et al. "Commission 8: Positional Astronomy (Astronomie De Position)." Transactions of the International Astronomical Union 20, no. 1 (1988): 29–39. http://dx.doi.org/10.1017/s0251107x00006891.

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The Commission deeply regrets the death of our colleague G. Teleki who passed away on February 1987.After the retirement of T. Dambara, S. Lautsen and W. Gliese and the arrival of C. Turon-Lacarrieu as a new member, the membership of our commission is 142.

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13

Miyamoto, M. "Commission 8: Positional Astronomy (Astronomie de Position)." Transactions of the International Astronomical Union 21, no. 1 (1991): 29–40. http://dx.doi.org/10.1017/s0251107x00009779.

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According to the recommendations of the Paris IAU Secretariat, the present triennial commission report is intended to put special emphasis on outstanding achievements around the main objectives of the commission rather than on abstracting all the literatures relevant to the commission. The highlights of the commission during the triennium under review have been the establishment of the conventional stellar reference frame FK5, an intensive effort in extension of the stellar reference frame to a celestial network of higher star densities and fainter magnitudes, and the launch of the astrometric satellite HIPPARCOS, as are described in this report.

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14

Hughes, J. A. "Commission 8: Positional Astronomy (Astronomie de Position)." Transactions of the International Astronomical Union 19, no. 2 (1985): 111–22. http://dx.doi.org/10.1017/s0251107x00026122.

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15

Moraitis, K., C. Bach, S. Kachrilas, J. Masood, and N. Buchholz. "E56 Position, position, position – which one for PCNL?" European Urology Supplements 10, no. 7 (2011): 498. http://dx.doi.org/10.1016/s1569-9056(11)61249-9.

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16

Nishi, Kaichiro, and Jun Miura. "A head position estimation method for a variety of recumbent positions for a care robot." Abstracts of the international conference on advanced mechatronics : toward evolutionary fusion of IT and mechatronics : ICAM 2015.6 (2015): 157–58. http://dx.doi.org/10.1299/jsmeicam.2015.6.157.

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17

Chmeissani, Mokhtar, Machiel Kolstein, Gerard Ariño-Estrada, José Gabriel Macias-Montero, Carles Puigdengoles, and Jorge García. "Tracking a moving point source using triple gamma imaging." Journal of Instrumentation 19, no. 01 (2024): P01001. http://dx.doi.org/10.1088/1748-0221/19/01/p01001.

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Abstract With positron emission tomography (PET), the positron of a β + emitter radioisotope annihilates with a nearby electron producing a pair of back-to-back 511 keV gamma rays that can be detected in a scanner surrounding the point source. The position of the point source is somewhere along the Line of Response (LOR) that passes through the positions where the 511 keV gammas are detected. In standard PET, an image reconstruction algorithm is used to combine these LORs into a final image. This paper presents a new tomographic imaging technique to locate the position of a β + emitting point source without using a standard PET image reconstruction algorithm. The data were collected with a Proof-of-Concept (PoC) PET scanner which has high spatial and energy resolutions. The imaging technique presented in this paper uses events where a gamma undergoes Compton scattering. The positions and energies deposited by the Compton scattered gamma define the surface of a Compton cone (CC) which is the locus of all possible positions of the point source, allowed by the Compton kinematics. The position of the same point source is also located somewhere on the LOR. Therefore, the position of the point source is defined by the 3 gammas and is given by the intersection point of the LOR and the Compton cone inside the Field of View (FOV) of the scanner. We refer to this method as CC×LOR. This new technique can locate the point source with an uncertainty of about 1 mm, after collecting a minimum of 200 CC×LOR events.

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18

Поддьяков, Александр Николаевич, and Alexander Poddiakov. "Intransitively winning chess players' positions." Mathematical Game Theory and Applications 14, no. 3 (2023): 75–100. http://dx.doi.org/10.17076/mgta_2022_3_57.

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Chess players' positions in intransitive (rock-paper-scissors) relations are considered. Namely, position $A$ of White is preferable (it should be chosen if choice is possible) to position $B$ of Black, position $B$ of Black is preferable to position $C$ of White, position $C$ of White is preferable to position $D$ of Black, but position $D$ of Black is preferable to position $A$ of White. Intransitivity of winningness of chess players' positions is considered to be a consequence of complexity of the chess environment - in contrast with simpler games with transitive positions only. Perfect values of chess players' positions are impossible. Euclidian metric cannot be used to describe chess players' positions in space of winningness relations. The Zermelo-von Neumann theorem is complemented by statements about possibility vs. impossibility of building pure winning strategies based on the assumption of transitivity of players' positions. Questions about the possibility of intransitive players' positions in other positional games are raised.

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19

Desgardin, P., and Marie France Barthe. "Visualization and Position Control of a Slow Positron Beam." Materials Science Forum 445-446 (January 2004): 468–70. http://dx.doi.org/10.4028/www.scientific.net/msf.445-446.468.

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20

Kinsella, S. M. "Position, position, position - terminology during stomach ultrasound in pregnant women." Anaesthesia 71, no. 11 (2016): 1264–67. http://dx.doi.org/10.1111/anae.13645.

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21

Chan, Theodore C., Gary M. Vilke, and Tom Neuman. "Reexamination of Custody Restraint Position and Positional Asphyxia." American Journal of Forensic Medicine and Pathology 19, no. 3 (1998): 201–5. http://dx.doi.org/10.1097/00000433-199809000-00001.

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22

Ichijo, Hiroaki. "Neutral position of persistent direction-changing positional nystagmus." European Archives of Oto-Rhino-Laryngology 273, no. 2 (2015): 311–16. http://dx.doi.org/10.1007/s00405-014-3487-3.

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23

Karimov, Rustam. "Methods, techniques of hand placement on violins, basic change of position and pure intonation." Multidisciplinary Journal of Science and Technology 4, no. 11 (2024): 309–14. https://doi.org/10.5281/zenodo.14247226.

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The article forms a position implies the position of the left hand and fingers in one or another part of the fingerboard within one position, the most different positions of the hand and fingers are possible. On the other hand, the same position of the hand and fingers in the same part of the fingerboard can be considered in different positions. The relativity of the concept of position becomes even more obvious when considering numerous examples from violin literature, which use narrowed and expanded finger positions (fifth coverage of the position, decimals, double octaves, etc.).

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24

Kondrashova, L. V. "TEACHER'S PROFESSIONAL POSITION IS AN IMPORTANT SOURCE ACTIVATING STUDENTS' POSITIONS." Educational Dimension 21 (September 1, 2008): 3–8. http://dx.doi.org/10.31812/educdim.6629.

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The article deals with the essence of the pupil's position and its part during socializing of growing personality and possibility of teacher's position in activating of actions of pedagogical process members, providing its personal current.

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25

Hiskya, Hendra Jondry, Dilli Dwi Kuswoyo, and Muktamar Umakaapa. "Differences in Service Position Against Service Accuracy in Volleyball." Indonesian Journal of Physical Education and Sport Science 3, no. 1 (2023): 29–38. http://dx.doi.org/10.52188/ijpess.v3i1.383.

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Purpose study. This study aims to find out the difference between serving for volleyball from behind position one, serving from behind position six, and serving from behind position five for UKM Volleyball UNMUS players, also to find out which is more effective between serving from behind position one. serving from behind position six, and serving from position five on top serving ability. Materials and methods. The subjects of this study were 21 UNMUS volleyball players. Data collection uses tests, with instruments in the form of service accuracy tests carried out from the right, left and center positions. The t-value for service accuracy between the right position and the left position is 0.225 and the calculated significant value (Sig) is 0.824. The t value for service accuracy between the right position and the middle position is 0.846 and the calculated significant value (Sig) is 0.407. The t value for service accuracy between the left position and the middle position is 1.091 and the calculated significant value (Sig) is 0.288. The data analysis technique uses ANOVA analysis and t-test through the prerequisite test for normality and homogeneity. Results. The results showed that there was no significant difference in the accuracy of the top serve from different positions, namely from the right, left and center positions. In detail, there is no significant difference in the accuracy of services performed from the right and left positions, the accuracy of services performed from the right and center positions, the accuracy of services performed from the left and center positions. Conclusions. Research results conclude that No There is significant difference accuracy service performed from position left and position in the middle of UKM Musamus Merauke University Volleyball players.

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26

Ramos, Luís. "Sobre a Questão dos Limites da Aplicação da Causalidade em Ciência: a Posição de Delfim Santos." Revista Portuguesa de Filosofia 77, no. 4 (2022): 1439–54. http://dx.doi.org/10.17990/rpf/2021_77_4_1439.

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The main objective of this article is to determine how Delfim Santos positions himself in relation to what I designated as the question of the limits of the application of causality in science. With this objective in mind, I divided the article into three sections: in the first, I show how Delfim Santos exposes these two opposing positions, namely, on the one hand, the universalist position, and on the other hand, the rejectionist position; in the second, I present Delfim Santos’ critique of these two opposing positions, namely, both the critique he weaves of the universalist position and the critique he weaves of the rejectionist position; in the third, I present Delfim Santos’ position in relation to the universalist position and the rejectionist position.

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27

Anthony, Michael. "Position." Journal of Healthcare Management Standards 3, no. 1 (2023): 1–4. http://dx.doi.org/10.4018/jhms.329216.

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The authors return to the points made in their article published in the inaugural edition of this journal to expand upon recommendations to healthcare industry leadership regarding electrical power security. If best practice is to be data driven, then healthcare executives can take action by funding front-line experts to participate in the United States standards system as a user-interest to assure best practice has been discovered by a balance of interests. As of yet, there is no standard approach for developing resilience metrics for hospitals in Italy, in the European Union, or the United States. When that condition is present, then leaders and managers will default to federal agencies or the market itself – an imperfect taskmaster. Engineers learn from failures, but they do not like to learn the hard way. Perhaps artificial intelligence will assist this journey in reconciling the competing requirements of safety and economy in healthcare facilities. In any case, best practice discovery should rest upon the foundation of data recommended by Lord Kelvin.

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28

Giusti, Guido, Maria P. Pavia, Luis Rico, and Silvia Proietti. "Percutaneous Nephrolithotomy: Which Position? Supine Position!" European Urology Open Science 35 (January 2022): 1–3. http://dx.doi.org/10.1016/j.euros.2021.10.005.

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29

Glasner, Ruth. "Gersonides Unusual Position on "Position"1." Centaurus 45, no. 1-4 (2003): 249–63. http://dx.doi.org/10.1111/j.1600-0498.2003.450119.x.

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30

Sarrazin, Maison Michel. "Position on Euthanasia — Position sur l'euthanasie." Journal of Palliative Care 10, no. 4 (1994): 23–26. http://dx.doi.org/10.1177/082585979401000405.

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31

Bourque, S. N., J. R. Valero, M. C. Lavoie, and R. C. Levesque. "Comparative Analysis of the 16S to 23S Ribosomal Intergenic Spacer Sequences of Bacillus thuringiensis Strains and Subspecies and of Closely Related Species." Applied and Environmental Microbiology 61, no. 7 (1995): 2811. http://dx.doi.org/10.1128/aem.61.7.2811-2811b.1995.

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Volume 61, no. 4, p. 1624, column 2, lines 38-41: The sentence should read "For example, at position 21, the G nucleotide (Fig. 1) was present in all the ISR B. thuringiensis subspecies except for B. thuringiensis subsp. tenebrionis (Te4), which contained an A." Page 1624, column 2, line 45: "Position 62" should read "position 11." Page 1624, column 2, line 47: "Position 90" should read "position 39." Page 1624, column 2, line 49: "Position 83" should read "position 32." Page 1625, column 1, line 3: "Position 83" should read "position 32." Page 1626, column 1, line 1: "Positions 62, 90, and 165, and one deletion at position 83" should read "positions 11, 39, and 114, and one deletion at position 32." [This corrects the article on p. 1623 in vol. 61.].

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32

Onishi, Yuya, Fumio Hashimoto, Kibo Ote, and Ryosuke Ota. "Unbiased TOF estimation using leading-edge discriminator and convolutional neural network trained by single-source-position waveforms." Physics in Medicine & Biology 67, no. 4 (2022): 04NT01. http://dx.doi.org/10.1088/1361-6560/ac508f.

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Abstract Objective. Convolutional neural networks (CNNs) are a strong tool for improving the coincidence time resolution (CTR) of time-of-flight (TOF) positron emission tomography detectors. However, several signal waveforms from multiple source positions are required for CNN training. Furthermore, there is concern that TOF estimation is biased near the edge of the training space, despite the reduced estimation variance (i.e. timing uncertainty). Approach. We propose a simple method for unbiased TOF estimation by combining a conventional leading-edge discriminator (LED) and a CNN that can be trained with waveforms collected from one source position. The proposed method estimates and corrects the time difference error calculated by the LED rather than the absolute time difference. This model can eliminate the TOF estimation bias, as the combination with the LED converts the distribution of the label data from discrete values at each position into a continuous symmetric distribution. Main results. Evaluation results using signal waveforms collected from scintillation detectors show that the proposed method can correctly estimate all source positions without bias from a single source position. Moreover, the proposed method improves the CTR of the conventional LED. Significance. We believe that the improved CTR will not only increase the signal-to-noise ratio but will also contribute significantly to a part of the direct positron emission imaging.

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33

Greenland, K. B. "More on ramped position and 25-degree head up positions." British Journal of Anaesthesia 117, no. 5 (2016): 674–75. http://dx.doi.org/10.1093/bja/aew325.

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34

Karp, Joel S., David A. Mankoff, and Gerd Muehllehner. "A position-sensitive detector for use in positron emission tomography." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 273, no. 2-3 (1988): 891–97. http://dx.doi.org/10.1016/0168-9002(88)90114-3.

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35

Le Ray, Camille, Flavie Lepleux, Aurélie de la Calle, et al. "Lateral Asymmetric Decubitus Position for the Rotation of Occipitoposterior Positions." Obstetrical & Gynecological Survey 72, no. 2 (2017): 69–71. http://dx.doi.org/10.1097/ogx.0000000000000415.

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36

Brown, N. L., and J. R. Sandy. "Spontaneous improvement in position of canines from apparently hopeless positions." International Journal of Paediatric Dentistry 11, no. 1 (2001): 64–68. http://dx.doi.org/10.1046/j.1365-263x.2001.00233.x.

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37

Amir, Dana. "On Revenge, Pardon, and Forgiveness." Journal of the American Psychoanalytic Association 70, no. 6 (2022): 1111–35. http://dx.doi.org/10.1177/00030651221138029.

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Political violence has long been a focus of psychoanalytic writing. Jessica Benjamin’s concepts of the complementarity, or twoness, and that of thirdness can serve as a point of departure allowing us to challenge the dichotomy between positions of revenge and forgiveness (on the victim’s part) and positions of evil and remorse (on the perpetrator’s), and to suggest a spectrum of encounters between victims and perpetrators that includes four types of interaction: (1) between the position of extreme evil on the perpetrator’s part, and the position of revenge on the victim’s; (2) between the perpetrator’s position of banal evil, and the victim’s position of false pardon; (3) between the perpetrator’s position of guilt and atonement, and the victim’s position of full pardon; (4) between the position of remorse on the perpetrator’s part, and the position of forgiveness on the victim’s. A thorough analysis of various testimonies illustrates how these four positions manifest, with varying degrees of dominance, in every encounter (whether concrete or imagined) between victim and perpetrator.

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38

Qian, Yuting, Sheng Wu, Qi Wang, et al. "Combination of Five Body Positions Can Effectively Improve the Rate of Gastric Mucosa’s Complete Visualization by Applying Magnetic-Guided Capsule Endoscopy." Gastroenterology Research and Practice 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/6471945.

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Objectives. Achieving a comprehensive view of gastric mucosa has been a challenge for magnetic-guided capsule endoscopy (MGCE) for years. This study works on optimizing the performance of MGCE by changing the conventional positions to the five body positions. Methods. Sixty patients were enrolled in the study and underwent MGCE. All patients were asked to adopt five body positions (left lateral, supine, right lateral, knee-chest, and sitting). In each position, the ability to visualize the six gastric landmarks (cardia, fundus, body, angulus, antrum, and pylorus) was assessed. Rates of complete visualization were calculated for different position combinations. Results. Supine position was the best for cardia and body visualization (91.7% and 86.7%, resp., p<0.001). Left lateral position was the best for fundus visualization (91.7%, p<0.001). Knee-chest position was the best for angulus observation (80.0%, p<0.001). Right lateral and sitting positions were the best for antrum observation (88.3% and 90.0%, resp., p<0.001). Right lateral position was the best for pylorus observation (81.7%, p<0.001). The supine + right lateral + knee-chest combination achieved better angulus visualization than conventional 3-position combination (93.3% versus 63.3%, p<0.001). Five-position combination significantly improved the comprehensive gastric landmark visualization (93.3%, p<0.001). Conclusion. Compared with 3-position combination, 5-position combination should be adopted for gastric mucosal visualization by MGCE.

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39

Sieh, Koon-Man, Yue-Yan Chan, Po-Yan Ho, and Kwai-Yau Fung. "What is the best lateral radiograph positioning technique for assessment of sagittal balance: A biomechanical study on influence of different arm positions." Journal of Orthopaedic Surgery 26, no. 2 (2018): 230949901877093. http://dx.doi.org/10.1177/2309499018770932.

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Purpose: To evaluate the influence of different arm postures from the physiological standing position using force plate analysis of the gravity line. Methods: Forty healthy volunteered university students were enrolled. Each subject assumed different standing positions including standing with arms resting on the side (control), with fist over the clavicle (clavicular position), with active shoulder flexion in 30°, 60° and 90° with elbows extended (active flexion A), with hand rest on a bar with a static support (passive flexion P), and with hand rest on a bar with a drip stand (passive flexion D). The offset of the gravity line from the heel was measured by force plate analysis. The offset of the gravity line in different arm positions was compared with the control using paired t-test. Results: The mean anterior offset of the gravity line in control position is 39.80% of the foot length. All testing positions showed anterior shift of the gravity line compared with the control position from 0.51% to 7.50%. There were statistically significant changes of the gravity line from the control position in all ( p < 0.05), except in the clavicular position ( p = 0.249). Conclusion: All testing positions cause anterior shifting of the center of gravity from the physiological standing position. Clavicular position is the best comparable posture to the physiological standing position in taking a lateral radiograph. We recommend using the clavicular position as the standard testing position in the assessment of the sagittal profile.

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40

X, Noorjahan, Arora Chanchal, and K. R Subhashini. "Effect of Upright Position versus Conventional Labour Position on Selected Feto - Maternal Outcomes." International Journal of Science and Research (IJSR) 13, no. 5 (2024): 1504–8. http://dx.doi.org/10.21275/sr24524172246.

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41

Havermann, Katharina, Eckart Zimmermann, and Markus Lappe. "Eye position effects in saccadic adaptation." Journal of Neurophysiology 106, no. 5 (2011): 2536–45. http://dx.doi.org/10.1152/jn.00023.2011.

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Saccades are used by the visual system to explore visual space with the high accuracy of the fovea. The visual error after the saccade is used to adapt the control of subsequent eye movements of the same amplitude and direction in order to keep saccades accurate. Saccadic adaptation is thus specific to saccade amplitude and direction. In the present study we show that saccadic adaptation is also specific to the initial position of the eye in the orbit. This is useful, because saccades are normally accompanied by head movements and the control of combined head and eye movements depends on eye position. Many parts of the saccadic system contain eye position information. Using the intrasaccadic target step paradigm, we adaptively reduced the amplitude of reactive saccades to a suddenly appearing target at a selective position of the eyes in the orbitae and tested the resulting amplitude changes for the same saccade vector at other starting positions. For central adaptation positions the saccade amplitude reduction transferred completely to eccentric starting positions. However, for adaptation at eccentric starting positions, there was a reduced transfer to saccades from central starting positions or from eccentric starting positions in the opposite hemifield. Thus eye position information modifies the transfer of saccadic amplitude changes in the adaptation of reactive saccades. A gain field mechanism may explain the eye position dependence found.

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42

Kitagawa, Norihito, Mayuko Oda, Tadahide Totoki, et al. "Proper Shoulder Position for Subclavian Venipuncture." Anesthesiology 101, no. 6 (2004): 1306–12. http://dx.doi.org/10.1097/00000542-200412000-00010.

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Background Although the Trendelenburg position and shoulder bracing are recommended for safe subclavian venipuncture, the optimal shoulder position remains unclear. The current study observed spatial relations between the subclavian vein and surrounding structures using multislice computed tomography to determine optimal shoulder position for safe subclavian venipuncture and then conducted a small follow-up clinical trial to confirm these findings. Methods Thoracic multislice computed tomography was performed for seven adult volunteers at three shoulder positions: elevated (up); neutral; and lowered caudally (down). Overlap and distance between the clavicle and the subclavian vein and the diameter of the subclavian vein were measured. Anatomical relations between the subclavian artery and vein were also observed. The success rate for subclavian venipuncture was then compared between the up and down shoulder positions in 30 patients. Results In the multislice computed tomography study, the mean overlap ratios between clavicle and subclavian vein in the up, neutral, and down positions were 33.5, 36.9, and 40.0%, respectively. Overlap increased with lower shoulder position (up &lt; neutral &lt; down; P &lt; 0.05). The mean distances between the clavicle and the subclavian vein in the up, neutral, and down positions were 6.8, 5.0, and 3.6 mm, respectively. Again, distance decreased with lower shoulder position (up &lt; neutral &lt; down; P &lt; 0.05). The diameter of the subclavian vein did not differ among the three shoulder positions. The success rate for subclavian venipuncture was significantly higher in the down position compared with the up position (P = 0.003). Conclusions Lowered shoulder position increases both overlap and proximity between the clavicle and the subclavian vein, producing a more constant relation between the clavicle and the subclavian vein, without affecting vein diameter. Proper use of a lowered shoulder position should thus increase the safety and reliability of subclavian venipuncture compared with other shoulder positions.

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Ferrer-Lluis, Ignasi, Yolanda Castillo-Escario, Josep Maria Montserrat, and Raimon Jané. "Enhanced Monitoring of Sleep Position in Sleep Apnea Patients: Smartphone Triaxial Accelerometry Compared with Video-Validated Position from Polysomnography." Sensors 21, no. 11 (2021): 3689. http://dx.doi.org/10.3390/s21113689.

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Poor sleep quality is a risk factor for multiple mental, cardiovascular, and cerebrovascular diseases. Certain sleep positions or excessive position changes can be related to some diseases and poor sleep quality. Nevertheless, sleep position is usually classified into four discrete values: supine, prone, left and right. An increase in sleep position resolution is necessary to better assess sleep position dynamics and to interpret more accurately intermediate sleep positions. This research aims to study the feasibility of smartphones as sleep position monitors by (1) developing algorithms to retrieve the sleep position angle from smartphone accelerometry; (2) monitoring the sleep position angle in patients with obstructive sleep apnea (OSA); (3) comparing the discretized sleep angle versus the four classic sleep positions obtained by the video-validated polysomnography (PSG); and (4) analyzing the presence of positional OSA (pOSA) related to its sleep angle of occurrence. Results from 19 OSA patients reveal that a higher resolution sleep position would help to better diagnose and treat patients with position-dependent diseases such as pOSA. They also show that smartphones are promising mHealth tools for enhanced position monitoring at hospitals and home, as they can provide sleep position with higher resolution than the gold-standard video-validated PSG.

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Gerhana, Yana Aditia, Wildan Budiawan Zulfikar, Yuga Nurrokhman, Cepy Slamet, and Muhammad Ali Ramdhani. "Decision support system for football player's position with tsukamoto fuzzy inference system." MATEC Web of Conferences 197 (2018): 03014. http://dx.doi.org/10.1051/matecconf/201819703014.

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Nowadays, football is one of the most famous sports in the world. Many football clubs and football academies have been established in Indonesia. In football academy, each player will be trained and selected to get the best positon in the team formation. In fact, each player has a different ability and skill. If a player gets a correct position, he can open the opportunity for his team to win a competition. This condition absolutely gives a good impact for the team. However, it will be a serious problem if a player plays in an incorrect position. The player's best position can be deciding by his own ability and skill. This study proposes the selection model of player's position by understanding a player's speed, stamina, strength, and other skills that covering, shooting, passing, dribble, and header with Tsukamoto Fuzzy Inference System. A player may have the following positions: central forward, midfielder, winger, goal keeper. In evaluation phase, this model exactly shows 52.17% accurate value. This means that the model decreases the misplacement of player's position. It is recommended for further study to make some additional criteria such as player's emotion, attitude, etc in order to increase accurate.

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De Greef, Aline, Thomas Delwiche, Laurent Catoire, and Michel Kinnaert. "EXPERIMENTAL STUDY OF POSITION-POSITION AND FORCE-POSITION CONTROL METHODS IN TELEOPERATION." IFAC Proceedings Volumes 39, no. 16 (2006): 301–6. http://dx.doi.org/10.3182/20060912-3-de-2911.00054.

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Kehrli, P., and D. Maitrot. "Risques cérébraux liés à la position: position du corps, position de l'encéphale." Annales Françaises d'Anesthésie et de Réanimation 17, no. 2 (1998): 157–59. http://dx.doi.org/10.1016/s0750-7658(98)80066-x.

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Shigeno, Kohichiro, Hideaki Ogita, and Kazuo Funabiki. "Benign paroxysmal positional vertigo and head position during sleep." Journal of Vestibular Research 22, no. 4 (2012): 197–203. http://dx.doi.org/10.3233/ves-2012-0457.

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Shigeno, Kohichiro, Ryota Oku, Hidetaka Kumagami, and Toshimitsu Kobayashi. "Benign Paroxysmal Positional Nystagmus and Head Position during Sleep." Equilibrium Research 59, no. 3 (2000): 236–42. http://dx.doi.org/10.3757/jser.59.236.

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Tusa, R. J. "Sleep position and laterality of benign paroxysmal positional vertigo." Yearbook of Neurology and Neurosurgery 2009 (January 2009): 71–72. http://dx.doi.org/10.1016/s0513-5117(09)79101-x.

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Korres, S. G., C. E. Papadakis, M. G. Riga, D. G. Balatsouras, D. G. Dikeos, and C. R. Soldatos. "Sleep position and laterality of benign paroxysmal positional vertigo." Journal of Laryngology & Otology 122, no. 12 (2008): 1295–98. http://dx.doi.org/10.1017/s0022215108002168.

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AbstractObjective:The aim of this study was to investigate the frequency of posterior semicircular canal benign paroxysmal positional vertigo in each ear, and to assess the association between the ear affected by benign paroxysmal positional vertigo and the head-lying side during sleep onset. Based on a previous study which used objective methods to prove the preference of the elderly for the right head-lying side during sleep, we hypothesised that a predominance of the same head-lying side in benign paroxysmal positional vertigo patients may affect the pathophysiology of otoconia displacement.Study design:We conducted a prospective study of out-patients with posterior semicircular canal benign paroxysmal positional vertigo, confirmed by a positive Dix–Hallpike test.Methods:One hundred and forty-two patients with posterior semicircular canal benign paroxysmal positional vertigo were interviewed about their past medical history, focusing on factors predisposing to benign paroxysmal positional vertigo. All patients included in the study were able to define a predominant, favourite head-lying side, right or left, during sleep onset.Results:The Dix–Hallpike test was found to be positive on the right side in 82 patients and positive on the left side in 54; six patients were found to be positive bilaterally. During sleep onset, 97 patients habitually laid their head on the right side and the remaining 45 laid their head on the left. The association between the affected ear and the head-lying side during sleep onset was statistically significant (p < 0.001).Conclusions:Our study found a predominance of right-sided benign paroxysmal positional vertigo, a subjective preference amongst patients for a right head-lying position during sleep onset, and an association between the ear affected by benign paroxysmal positional vertigo and the preferred head-lying side during sleep onset. The clinical and therapeutical implications of this observation are discussed.

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