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Journal articles on the topic 'Sharp-pointed'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

MELMED, A. J. "THE METHOD OF SHARP-POINTED SHARDS." Le Journal de Physique Colloques 50, no. C8 (1989): C8–547—C8–548. http://dx.doi.org/10.1051/jphyscol:1989894.

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2

Karger, B., J. Niemeyer, and B. Brinkmann. "Physical activity following fatal injury from sharp pointed weapons." International Journal of Legal Medicine 112, no. 3 (1999): 188–91. http://dx.doi.org/10.1007/s004140050230.

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3

Behera, Chittaranjan, Ravi Rautji, Ramesh Pratap Anuragi, and Ram Niwas Yadav. "Suicide note written on the forearm using a sharp pointed object." Medico-Legal Journal 87, no. 2 (2019): 92–94. http://dx.doi.org/10.1177/0025817219845234.

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Suicide notes are generally written on readily available materials, such as paper, notebook, wall or mirror by means of pen, pencil, marker or chalk. They can also be communicated by telephone, text messages, internet and digital media. A case has been reported where a note was written with henna. Suicide notes written on one’s body are uncommon, and notes engraved on the body with a sharp metallic object are extremely rare. We present two cases where a sharp pointed metallic object was used to write suicide notes on the body.

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4

Dzhezherya, Yu I., A. O. Khrebtov, D. P. Azarkh, and S. P. Kruchinin. "Sharp-pointed susceptibility of ferromagnetic films with magnetic anisotropy inhomogeneous in thickness." International Journal of Modern Physics B 32, no. 17 (2018): 1840034. http://dx.doi.org/10.1142/s0217979218400349.

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It is shown that in ferromagnetic films with anisotropy inhomogeneous in thickness, an interphase boundary can be formed for certain values and directions of the magnetic field. This boundary has a stable magnetic configuration. It is oriented parallel to the film plane and separates the regions with different orientations of the magnetization. In an alternating magnetic field, the interphase boundary oscillates, which may be accompanied by a resonance. The field and frequency dependences of the components of the magnetic susceptibility tensor are determined. It is shown that the susceptibilit

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5

Bertoni, Giorgio, Dario Pacchione, Rita Conigliaro, Romano Sassatelli, Claudio Pedrazzoli, and Giuliano Bedogni. "Endoscopic protector hood for safe removal of sharp-pointed gastroesophageal foreign bodies." Surgical Endoscopy 6, no. 5 (1992): 255–58. http://dx.doi.org/10.1007/bf02498816.

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6

Morikawa, Hiroshi, and Keisuke Goto. "Reproducible sharp‐pointed tip preparation for field ion microscopy by controlled ac polishing." Review of Scientific Instruments 59, no. 10 (1988): 2195–97. http://dx.doi.org/10.1063/1.1139985.

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7

Dalai, Prakash Chandra, Kedar Nath Panda, Bijay Misra, and Prakash Agarwal. "Fate of an unapproachable sharp metallic foreign body in the gastrointestinal tract." Journal of Digestive Endoscopy 6, no. 04 (2015): 176–78. http://dx.doi.org/10.4103/0976-5042.173967.

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AbstractSharp pointed objects carrying a risk of injury and perforation should be removed immediately with a flexible endoscope. In the present case, a 3-year-old boy ingested a sharp pin during a dental procedure. The only complain was mild pain in the throat. Chest X-ray done after 14 h of ingestion revealed a sharp pointed pin in the mid esophagus. On urgent endoscopy, no pin was found, but fluoroscopy (C-arm) image revealed same pin parallel to the endoscope at about 20 cm from incisors. It was planned for video thoracoscopic removal, patient referred to a pediatric surgeon, but, fortunate

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8

Prasad, TR Sai, Y. Low, CE Tan, and AS Jacobsen. "Swallowed Foreign Bodies in Children: Report of Four Unusual Cases." Annals of the Academy of Medicine, Singapore 35, no. 1 (2006): 49–53. http://dx.doi.org/10.47102/annals-acadmedsg.v35n1p49.

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Introduction: Although a majority of ingested foreign bodies (FBs) pass down the gastrointestinal tract spontaneously, those that are sharp, pointed or large in size need removal to avert serious complications. We highlight the urgent need and utility of endoscopic accessories and technical artistry in safe retrieval of FBs in children. Clinical Picture: Four children had accidentally swallowed a nail, metallic dumbbell, open safety pin and a cushion pin respectively. They were symptom-free and the abdominal plain radiographs revealed foreign body in the stomach in all the cases. Treatment: Oe

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9

Sarem, Muhannad, Ismael Tayagüi, Agustina Vetere, Natalia Romagnoli, and Luis Sarra. "Successful removal of multiple sharp-pointed foreign body (metallic cap) impacted in the esophagus." European Journal of Gastroenterology & Hepatology 33, no. 10 (2021): 1332–34. http://dx.doi.org/10.1097/meg.0000000000002023.

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10

Disibeyaz, Selcuk, Erkin Oztas, Ufuk B. Kuzu, and Mustafa Ozdemir. "Large Balloon Dilation Treatment for Retrieval of Embedded Sharp-pointed Objects in the Esophagus." Surgical Laparoscopy, Endoscopy & Percutaneous Techniques 26, no. 5 (2016): e103-e104. http://dx.doi.org/10.1097/sle.0000000000000318.

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11

LONGUET-HIGGINS, MICHAEL S. "Asymptotic forms for jets from standing waves." Journal of Fluid Mechanics 447 (October 30, 2001): 287–97. http://dx.doi.org/10.1017/s0022112001006061.

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Standing gravity waves forced beyond the maximum height for perfect periodicity can produce vertical jets with sharp-pointed tips. In this paper, canonical forms for the wave crests are derived which display sharp cusps in the limit as the time t tends to infinity. The theoretical profile is in general quartic in the space coordinates, and can describe the smooth transition of a fairly low wave crest to a cusped form. There is no singularity as the surface slope passes through 45°.

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12

Sharma, Manish, and Chandan Kalla. "Unusual Case Report of Flat, Sharp and Pointed Metallic Foreign Body Traversing the Orbital Floor." Delhi Journal of Ophthalmology 23, no. 4 (2013): 281–83. http://dx.doi.org/10.7869/djo.2012.84.

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13

Totadri, Varsha Madhavnarayan, Subrat Kumar Mohanty, Harish Chandra Tudu, Dibyalochan Praharaj, Suprabhat Giri, and Shivam Gupta. "Sharp-pointed Foreign Body Ingestion in a Child: A Unique Case Report and Literature Review." Journal of Integrative Medicine and Research 2, no. 4 (2024): 265–68. http://dx.doi.org/10.4103/jimr.jimr_25_24.

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Abstract: Accidental foreign body ingestion is commonly encountered in clinical practice, especially among children.Concern arises especially when the ingested foreign body is a sharp object due to the risk of perforation, mucosal injury, and impaction in the gut. Of inadvertently ingested foreign bodies, 10%–20% require endoscopic removal and <1% require open surgical intervention.Endoscopic management, though popular, still remains difficult due to the inaccessibility of certain points in the bowel. Here, we describe a 7-year-old male child who presented to us on March 31, 2024, with a hi

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14

Özesmi, Uygar. "The Ecological Economics of Harvesting Sharp-Pointed Rush (Juncus acutus) in the Kizilirmak Delta, Turkey." Human Ecology 31, no. 4 (2003): 645–55. http://dx.doi.org/10.1023/b:huec.0000005517.37112.c9.

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15

Bertoni, Giorgio, Romano Sassatelli, Rita Conigliaro, and Giuliano Bedogni. "A simple latex protector hood for safe endoscopic removal of sharp-pointed gastroesophageal foreign bodies." Gastrointestinal Endoscopy 44, no. 4 (1996): 458–61. http://dx.doi.org/10.1016/s0016-5107(96)70099-8.

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16

De los Ríos, Patricio, Laksmanan Kanagu, Chokkalingam Lathasumathi, and Chelladurai Stella. "Radular morphology by using SEM in Pugilina cochlidium (Gastropoda: Melongenidae) populations, from Thondi coast-Palk Bay in Tamil Nadu-South East coast of India." Brazilian Journal of Biology 80, no. 4 (2020): 783–89. http://dx.doi.org/10.1590/1519-6984.220076.

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Abstract Radula in all melongeninae species is rather uniform and characterized by bicuspid lateral teeth with strongly curved cusps and sub rectangular rachidians, bearing usually 3 cusps. The aim of the present study was to describe the radula of 2 Pugilina cochlidium populations using SEM. The radula in 2 species proves itself as a rachiglossate type showing the radular formula of 1 + R + 1. The first population hasthe central tooth wide with sharp cusps equal in length, emanate from posterior margin of tooth base. The lateral teeth have 2 cusps and are long, sharp, pointed and bent towards

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17

Orhan, Halit, Dorina Răducanu, Murat Çağlar, and Mustafa Bayram. "Coefficient Estimates and Other Properties for a Class of Spirallike Functions Associated with a Differential Operator." Abstract and Applied Analysis 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/415319.

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For , , , , and , a new class of analytic functions defined by means of the differential operator is introduced. Our main object is to provide sharp upper bounds for Fekete-Szegö problem in . We also find sufficient conditions for a function to be in this class. Some interesting consequences of our results are pointed out.

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18

Shkuratov, S. I., S. N. Shillimanov, and S. N. Ivanov. "Preparation of high-Tcsuperconducting single-crystal sharp-pointed specimens for field electron emission microscopy and spectroscopy." Superconductor Science and Technology 6, no. 7 (1993): 520–24. http://dx.doi.org/10.1088/0953-2048/6/7/012.

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19

Arcones, Miguel A. "L p –Estimators as Estimates of a Parameter of Location for a Sharp–pointed Symmetric Density." Scandinavian Journal of Statistics 25, no. 4 (1998): 693–715. http://dx.doi.org/10.1111/1467-9469.00130.

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20

Adam, Mohammed, Abdullateef Abiodun Ajadi, Jamila Abiodun Atata, and Olatunde Babatunde Akanbi. "TRAUMATIC VENTRICULITIS IN AN AFRICAN OSTRICH: A CASE REPORT." Media Kedokteran Hewan 33, no. 1 (2022): 48. http://dx.doi.org/10.20473/mkh.v33i1.2022.48-52.

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Traumatic ventriculitis or hardware disease is the gizzard perforation by sharp foreign bodies (metallic or sharp object) that leads to ulcerative lesions.The present Case Report was to investigate through post mortem examination the cause of African ostrich death. Necropsy was conducted on a dead male adult African Ostrich presented to the postmortem unit of the Department of Veterinary Pathology, University of Ilorin, Ilorin, Nigeria. The gross lesions showed multifocal ecchymotic and petechial haemorrhages and lacerations on the left shank and thigh as well as the cloaca and vent of the bir

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21

Ivantsiv, V. A., S. L. Nyankovskyy, L. V. Yushchyk, et al. "Foreign bodies in the upper gastrointestinal tract in children, modern approaches to removal. A clinical case." CHILD`S HEALTH 19, no. 8 (2025): 520–25. https://doi.org/10.22141/2224-0551.19.8.2024.1777.

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Background. The problem of providing emergency care to children who have swallowed sharp foreign bodies remains relevant and requires addressing the following issues: the timeliness of such care, the diagnostic algorithm for determining the nature of a foreign body, and the methodological aspects of the endoscopist’s procedure. The purpose of this study is to improve the technique for removing a fixed sharp-pointed foreign body from a child’s esophagus. Materials and methods. The article describes a clinical case of endoscopic removal of a 2-cm long open safety pin lodged in the upper esophage

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22

Lee, Hyun Kyung, Jung Hee Byon, and Eun Hae Park. "A case of orthodontic splint ingestion misclassified as a sharp/pointed foreign body in a child: A case report." Medicine 104, no. 17 (2025): e41843. https://doi.org/10.1097/md.0000000000041843.

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Rationale: Foreign body (FB) ingestion is common, particularly among children. While most FBs pass through the gastrointestinal tract without complications, some cases can lead to morbidity or even mortality. Management strategies depend on the size, sharpness, toxicity, and location of the FB. Plain radiographs are essential for diagnosis, treatment planning, and follow-up, especially for radiopaque FBs. Ingestion of dental-related FBs is rare, with reported cases involving orthodontic wires, braces, retainers, and other dental materials. Composite resin-wire splints are commonly used in orth

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23

Alomari, Mohammad W. "A sharp companion of Ostrowski’s inequality for the Riemann–Stieltjes integral and applications." Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica 15, no. 1 (2016): 69–78. http://dx.doi.org/10.1515/aupcsm-2016-0006.

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AbstractA sharp companion of Ostrowski’s inequality for the Riemann-Stieltjes integral $\int_a^b {f(t)\;du(t)} $, where f is assumed to be of r-H-Hölder type on [a, b] and u is of bounded variation on [a, b], is proved. Applications to the approximation problem of the Riemann-Stieltjes integral in terms of Riemann-Stieltjes sums are also pointed out.

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24

., Sutrisno, Deendarlianto ., Tri Agung Rochmat, et al. "The Rolled-up and Tip Vortices Studies in the CFD Model of the 3-D Swept-Backward Wind Turbine Blades." Modern Applied Science 11, no. 12 (2017): 118. http://dx.doi.org/10.5539/mas.v11n12p118.

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In this paper, the method to analyze of vortex dynamics simulation of 3-D (three dimensional) backward wind turbine blades is introduced, consisted of flow visualization part and detailed measurement part. With this method, one could explain visually and by calculation the role of 3-D flow vortex mechanism patterns on 3-D backward wind turbine blade, the interchange between kinetic and potential energies, the utilization of very strong vortex, which could lose energy, generate lift, and produce tangential mechanical power. The method could be elucidated by analyzing the appearance of rolled-up

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25

Hassan, Ruhana, Nur Fatimah Mohd Azizi, Muhammad Amirul Arib Md Adzhar, Mohd Izwan Zulaini Abdul Gani, Rambli Ahmad, and Charles Leh Moi Ung. "A Taphonomic Study of Crocodylus porosus (Crocodylidae) and Tomistoma schlegelii (Gavialidae) Remains from Western Sarawak, Malaysian Borneo: Applications for Public Education." Trends in Undergraduate Research 1, no. 1 (2018): a23–32. http://dx.doi.org/10.33736/tur.1139.2018.

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This study documented details of the dentitions, skulls and other skeletal remains of Crocodylus porosus and Tomistoma schlegelii, from western part of Sarawak, Malaysian Borneo. The remains of both reptiles were exhumed, followed by standard cleaning procedures and then detail morphological assessments were carried out accordingly. Both species show similar structure of vertebral columns, but T. schlegelii has the following unique structures: a long and narrower snout, D-shaped eye sockets, long and sharp pointed protruding quadratojugal bones, straight maxillae and dentary, a smooth surfaced

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26

Rajalakshmi, K., P. Senthamil Selvan, M. Sivakumar, and A. W. Lakkawar. "Gross Morphological and Radiographic Studies on the Bones of the Shoulder and Arm in Indian Grey Mongoose or Asian Grey Mongoose (Herpestes edwardsii)." Journal of Advances in Biology & Biotechnology 28, no. 2 (2025): 348–56. https://doi.org/10.9734/jabb/2025/v28i21996.

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The scapula of the Indian grey mongoose was a flat and trapezoid shaped bone with two surfaces, four borders and four angles. The scapular spine divided its lateral surface into two unequal fossae and terminated as a pointed hamate process, the latter presented a triangular suprahamate process whose apex was pointed and directed caudally. The glenoid cavity was shallow with a cranially projected supraglenoid tubercle that possessed medially a small indistinct coracoid process. The humerus was a long bone with a distinct spirally twisted shaft and two extremities. Its proximal extremity had an

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27

Kunets’, Ya I., and R. V. Rabosh. "Longitudinal shear of an elastic medium with a thin rectilinear sharp-pointed piezoelectric inclusion of low rigidity." Journal of Mathematical Sciences 180, no. 2 (2011): 153–60. http://dx.doi.org/10.1007/s10958-011-0637-7.

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28

Hiller, Kenneth N., and Carin A. Hagberg. "Use of a video laryngoscope to facilitate removal of a long, sharp-pointed blade from the esophagus." Journal of Clinical Anesthesia 32 (August 2016): 4–6. http://dx.doi.org/10.1016/j.jclinane.2016.01.003.

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29

Berthaume, Michael A., Elizabeth R. Dumont, Laurie R. Godfrey, and Ian R. Grosse. "How does tooth cusp radius of curvature affect brittle food item processing?" Journal of The Royal Society Interface 10, no. 84 (2013): 20130240. http://dx.doi.org/10.1098/rsif.2013.0240.

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Tooth cusp sharpness, measured by radius of curvature (RoC), has been predicted to play a significant role in brittle/hard food item fracture. Here, we set out to test three existing hypotheses about this relationship: namely, the Blunt and Strong Cusp hypotheses, which predict that dull cusps will be most efficient at brittle food item fracture, and the Pointed Cusp hypothesis, which predicts that sharp cusps will be most efficient at brittle food item fracture using a four cusp bunodont molar. We also put forth and test the newly constructed Complex Cusp hypothesis, which predicts that a mix

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30

Sundaram, Sridhar, Suprabhat Giri, Biswaranjan Patra, Harish Darak, and Shobna Bhatia. "Push Enteroscopy Guided Removal of a Sharp Foreign Body from the Midjejunum in a Child." Journal of Digestive Endoscopy 11, no. 02 (2020): 170–72. http://dx.doi.org/10.1055/s-0040-1713489.

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Abstract Background The majority of foreign bodies entering the small intestine are passed spontaneously. However, in case of a sharp object, its removal is an urgency due to a higher risk of intestinal perforation, and endoscopic intervention is an appropriate management strategy as surgery is associated with greater morbidity. Although enteroscopy is the standard practice for the removal of a foreign body in the small intestine, gastroduodenoscopy may be used for small intestinal foreign body removal. Case Presentation We describe here the case of a 21-month-old child in whom a 5-cm, sharp-p

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31

HOWARD, PETER, MOHAMMADREZA RAOOFI, and KEVIN ZUMBRUN. "SHARP POINTWISE BOUNDS FOR PERTURBED VISCOUS SHOCK WAVES." Journal of Hyperbolic Differential Equations 03, no. 02 (2006): 297–373. http://dx.doi.org/10.1142/s021989160600080x.

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Refining previous work of Zumbrun, Mascia–Zumbrun, Raoofi, Howard–Zumbrun and Howard–Raoofi, we derive sharp pointwise bounds on behavior of perturbed viscous shock profiles for large-amplitude Lax or overcompressive type shocks and physical viscosity. These extend well-known results of Liu obtained by somewhat different techniques for small-amplitude Lax type shocks and artificial viscosity, completing a program initiated by Zumbrun and Howard. As pointed out by Liu, the key to obtaining sharp bounds is to take account of cancellation associated with the property that the solution decays fast

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32

Elvi, Elvi, Edy Machmud, Bahruddin Thalib, Armawati Arafi, and Indah Sulistiawaty. "Management of releasable full denture in patient with pseudo jaw relation class III: a case report." Journal of Dentomaxillofacial Science 2, no. 1 (2017): 76. http://dx.doi.org/10.15562/jdmfs.v2i1.453.

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Objective: To give information about management of releasable full denture in patient with pseudo jaw relation class IIIMethods: A 58 years old woman came with complaints that she could not chew food and felt shy when she laughed, the woman asked a denture made for her. Last tooth withdrawal was 3 months ago. Shape of upper jaw sharp edge is triangle (pointed alveolar ridge), while lower jaw sharp edge is in resorbtion condition. Making of denture was started with initial molding, physiology molding, bite determination, and teeth arrangement based on Lingualized occlusion to insertion.Results:

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33

Fischione, E. A., P. E. Fischione, J. J. Haugh, and M. G. Burke. "An Improved Method for the Preparation and TEM Examination of Sharp Pointed Tips used in APFIM and STM." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 2 (1990): 102–3. http://dx.doi.org/10.1017/s0424820100134107.

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A common requirement for both Atom Probe Field-Ion Microscopy (APFIM) and Scanning Tunnelling Microscopy (STM) is a sharp pointed tip for use as either the specimen (APFIM) or the probe (STM). Traditionally, tips have been prepared by either chemical or electropolishing techniques. Recently, ion-milling has been successfully employed in the production of APFIM tips [1]. Conventional electropolishing techniques are applicable to a wide variety of metals, but generally require careful manual adjustments during the polishing process and may also be time-consuming. In order to reduce the time and

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34

Feng, Shui, Hong Peng, Hong Xie, Yunbo Bai, and Jinshu Yin. "Management of Sharp-Pointed Esophageal Foreign-Body Impaction With Rigid Endoscopy: A Retrospective Study of 130 Adult Patients." Ear, Nose & Throat Journal 99, no. 4 (2020): 251–58. http://dx.doi.org/10.1177/0145561319901033.

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Objectives: To propose a management algorithm for adult patients with sharp-pointed esophageal foreign-body impaction (EFBI) who have rigid endoscopy (RE) indications and to conduct a retrospective analysis of their data. Methods: All adult patients who received RE at the Department of Otorhinolaryngology in Beijing Shijitan Hospital between January 2017 and May 2019 were enrolled. The demographics, clinical characteristics, and management data were collected and analyzed. Results: A total of 130 patients were identified, 56.9% were female with median age 60 years. More than half (56.9%) of pa

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35

Terayama, M., S. Hasegawa, K. Uchida, M. Ishimaru, Y. Hirotsu, and H. Asahi. "Formation process of sharp-pointed structures on GaN nanorods during RF-MBE growth and their field emission characteristics." physica status solidi (c) 4, no. 7 (2007): 2371–74. http://dx.doi.org/10.1002/pssc.200674789.

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36

KLUGE, NIKITA J., ROMAN J. GODUNKO, and DMITRY A. APANASKEVICH. "Mayflies of the Caucasus Mountains. II. Description of the first representative of the subgenus Helvetoraeticus Bauernfeind & Soldán, 2012 (Heptageniidae: Ecdyonurus)." Zootaxa 3608, no. 1 (2013): 51–66. http://dx.doi.org/10.11646/zootaxa.3608.1.3.

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The first representative of the subgenus Helvetoraeticus Bauernfeind & Soldán, 2012, from the Caucasus Mountains, Ecdyonurus (Helvetoraeticus) adjaricus sp. nov., is described on the basis of larvae, female imago (reared from larva) and male imago from the Autonomous Republic of Adjara, Georgia. The male imago of the new species can be separated from other representatives of Helvetoraeticus by its conspicuous yellowish wings coloration (especially of hind wings) and the shape of the penis lobes. The larva has a distinctive broad and apically pointed lateral projection on the pronotum, poin

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37

Ankudinov, A. L. "Kinetic viscous shock layer near a rotating sharp cone." Prikladnaâ matematika i mehanika 88, no. 4 (2024): 622–29. https://doi.org/10.31857/s0032823524040089.

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The paper considers a nonequilibrium (in terms of internal and translational degrees of freedom) flow of a polyatomic gas in a macrokinetic thin viscous shock layer (kinetic TVSL) near a circular sharp cone rotating around its own axis. A transformation of variables that regularizes the problem is proposed. The possibility of constructing a solution to the considered problem for a kinetic TVSL based on the Navier–Stokes model for solving this problem is indicated. A closed local regularized problem is formulated that describes an irregular flow in a kinetic TVSL near the pointed tip of a rotat

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38

MINOSHIMA, YÛSUKE, and MASAKAZU HAYASHI. "Larval morphology of Amphiops mater mater Sharp (Coleoptera: Hydrophilidae: Chaetarthriini)." Zootaxa 3351, no. 1 (2012): 47. http://dx.doi.org/10.11646/zootaxa.3351.1.5.

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The larval morphology of Amphiops mater mater Sharp, 1873 is described, including chaetotaxy and morphological trans-formation between instars. Among genera of the family Hydrophilidae, the larvae of Amphiops Erichson, 1843 may bedistinguished by the following combination of characters: coronal line present; clypeolabrum almost symmetrical; man-dibles symmetrical and with three inner teeth; dorsal surface of palpomere 1 completely sclerotized; mentum with stronglyprojecting and sharply pointed anterior corners; ligula absent; spiracular atrium well developed. Several primary sensillaare absent

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39

CALOGERACOS, A. "RADIATION FROM PERFECT MIRRORS FOLLOWING PRESCRIBED RELATIVISTIC TRAJECTORIES." International Journal of Modern Physics A 17, no. 06n07 (2002): 1018–25. http://dx.doi.org/10.1142/s0217751x02010443.

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The question is examined of a mirror which starts from rest and either (i) accelerates for some time and eventually reverts to motion at constant velocity, (ii) continues accelerating forever. A sharp distinction in made between cases (i) and (ii) concerning the spectrum of the emitted radiation, and the qualitative difference between the two cases is pointed out. The Bogolubov coefficients are calculated for a trajectory of type (i). A type (ii) trajectory is entirely unphysical as far as any realistic mirror is concerned, however it is of interest in that it has been used as a simple analog

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40

Peterson, Paul M., Konstantin Romaschenko, Robert J. Soreng, and Jesus Valdés Reyna. "Eriocoma valdesii, a new species from México (Poaceae, Stipeae)." PhytoKeys 139 (January 27, 2020): 21–28. http://dx.doi.org/10.3897/phytokeys.139.47373.

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Eriocoma valdesiisp. nov., is described and illustrated. The new species was found growing on calcareous rocky slopes and hillsides between 1700–2721 m in Coahuila, Nuevo León, San Luis Potosí, and Tamaulipas. The new species is morphologically similar to Eriocoma lobata but differs in having ligules (2–) 4.5–8.5 mm long with acute to narrowly acute and lacerate apices and florets with a sharp-pointed callus. In addition, we include a key to the species of Eriocoma in northeastern México.

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Kevin Emeka, Chukwubuike. "Spontaneous Passage of a Long Nail through the Gastrointestinal Tract of a 2-year old Child: A Case Report." Journal of Surgical Case Reports and Images 4, no. 5 (2021): 01–03. http://dx.doi.org/10.31579/2690-1897/070.

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Swallowing of foreign body is a common problem in children. Although most foreign bodies in the gastrointestinal tract will pass spontaneously, passage of sharp and pointed object such as a long nail is unusual. We report a case of a 2-year old female who swallowed a 3-inch nail and passed the nail per rectum spontaneously without problems while preparations were being made for the removal of the nail. The rarity of this event makes it worthy of being reported.

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Wu, Tingzeng, and Yong Yu. "On the Hosoya Indices of Bicyclic Graphs with Small Diameter." Journal of Chemistry 2021 (September 2, 2021): 1–14. http://dx.doi.org/10.1155/2021/5555700.

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Let G be a graph. The Hosoya index of G , denoted by z G , is defined as the total number of its matchings. The computation of z G is NP-Complete. Wagner and Gutman pointed out that it is difficult to obtain results of the maximum Hosoya index among tree-like graphs with given diameter. In this paper, we focus on the problem, and a sharp bound of Hosoya indices of all bicyclic graphs with diameter of 3 is determined.

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Peterson, Paul M., Konstantin Romaschenko, Robert J. Soreng, and Reyna Jesus Valdés. "Eriocoma valdesii, a new species from México (Poaceae, Stipeae)." PhytoKeys 139 (January 27, 2020): 21–28. https://doi.org/10.3897/phytokeys.139.47373.

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Eriocoma valdesii sp. nov., is described and illustrated. The new species was found growing on calcareous rocky slopes and hillsides between 1700–2721 m in Coahuila, Nuevo León, San Luis Potosí, and Tamaulipas. The new species is morphologically similar to Eriocoma lobata but differs in having ligules (2–) 4.5–8.5 mm long with acute to narrowly acute and lacerate apices and florets with a sharp-pointed callus. In addition, we include a key to the species of Eriocoma in northeastern México.

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Ma, Jeehyun, Doo Kyoung Kang, Jae-Ik Bae, Kyung Joo Park, and Joo Sung Sun. "Value of MDCT in Diagnosis and Management of Esophageal Sharp or Pointed Foreign Bodies According to Level of Esophagus." American Journal of Roentgenology 201, no. 5 (2013): W707—W711. http://dx.doi.org/10.2214/ajr.12.8517.

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Hamidinezhad, Habib, Yussof Wahab, and Zulkafli Othaman. "Ultra-sharp pointed tip Si nanowires produced by very high frequency plasma enhanced chemical vapor deposition via VLS mechanism." Journal of Materials Science 46, no. 15 (2011): 5085–89. http://dx.doi.org/10.1007/s10853-011-5435-6.

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DOMÍNGUEZ, MICHEL, and LUIS V. MORENO. "Taxonomy of the Cuban blind snakes (Scolecophidia, Typhlopidae), with the description of a new large species." Zootaxa 2028, no. 1 (2009): 59–66. http://dx.doi.org/10.11646/zootaxa.2028.1.6.

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Typhlops golyathi sp. nov. is described from Pinar del Río Province, Western Cuba. It is characterized by its large size, sharp–pointed to rounded snout, broad rostral in dorsal view, broader than long, preocular in contact with second and third supralabials, greater number of middorsal scales than any other West Indian scolecophidian (629), and 26 longitudinal scale rows anteriorly reducing to 22 posteriorly at 42 % total length. It can be placed within the T. biminiensis species group and a key to the Cuban species is presented.

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Moreno Dommar, Celeste, and Maria Isabel Brusca. "Knowledge of the protocol to be followed in the event of an accident with a sharp object during the clinical practice of undergraduate students in the subject Integrated Adult Clinical and Surgery III, School of Dentistry, Universidad Abierta Interamericana, Buenos Aires, Argentina, 2024." Odontologia (Montevideo) 1 (December 30, 2023): 26. https://doi.org/10.62486/agodonto202326.

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Sharp accidents frequently occur during the practice of dentistry, due to the use of sharp and pointed elements. This usually happens to dentists and especially to students, due to conditions attributable to the practice itself, such as: stress, movement of the patient, reduced space, among others. Through an accident with sharps it is possible to generate inoculation of pathogenic agents when exposed to contaminated biological substances, the main pathogenic agents identified in various studies are: HIV, Hepatitis B virus, Hepatitis C virus, among others. Biosafety protocols have been establi

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Yoyo Wardaya, Asep, Zaenul Muhlisin, and Isnain Gunadi. "MODIFIED CAPACITANCE MODEL IN THE CORONA PLASMA DISCHARGE." International Journal of Scientific Research and Management 11, no. 04 (2023): 437–42. http://dx.doi.org/10.18535/ijsrm/v11i04.m01.

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This research calculates the modified capacitance of the electrode capacitively coupled plasma (CCP) model with a crown sharp-plane configuration. The CCP model is an electrode model similar to the principle of a capacitor in a conventional circuit but differs in the arrangement of the electrodes. In the case of a positive corona, the structure of the positions of the active electrodes is almost vertical in the air, and the part of the passive electrodes is lying horizontally under the active electrodes. The shape of the active electrode is sharp at the tip of the electrode, which will cause a

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Brookes, J. B., and I. J. Lean. "Teeth Clipping in Piglets." Proceedings of the British Society of Animal Production (1972) 1993 (March 1993): 75. http://dx.doi.org/10.1017/s0308229600024016.

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Piglets are born with 8 very sharp ‘needle-teeth’ - 4 incisors and 4 canines. These pointed teeth grow outwards, two on either side in each jaw, leaving an open space in the front of the mouth. In intensively run units, the tips of these teeth are usually removed soon after birth, using a pair of side cutter pliers. This is said to reduce the severity of piglet face wounding, caused by natural competition for space at the udder and during play. Reducing injury by clipping teeth is also said to limit the sites of entry for micro-organisms. Blunt clippers and clipping teeth too close to the gum

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Li, Tian Lang, and Zuo Yu Sun. "Which Alternative Fuel is more Suitable for Vehicles in China: Hydrogen Gas or Fossil-Based Fuels?" Advanced Materials Research 512-515 (May 2012): 1450–55. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.1450.

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The sharp rise in the development of vehicle industry in China not only promotes both the national economy development and the people living quality, but also aggravates both the national energy security and the environmental issues. Adopting alternative fuels instead of petroleum is commonly regarded as the utmost promising solution, however, which alternative fuel(s) is more suitable for China is still in the argument. The present paper compared the characteristics and performance of hydrogen gas and fossil-based fuels, and pointed that hydrogen gas is more suitable for China than fossil-bas

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