A MORPHOMETRIC STUDY OF THE NORMAL HUMAN EAR IN HUSM USING COMPUTER BASED MEASUREMENT TECHNIQUE

2015 ◽  
Vol 23 (1) ◽  
pp. 45-58
Author(s):  
Nor Azura Mohamed ◽  
◽  
Zainul Ahmad Rajion ◽  
Keyword(s):  
Measurement Technique ◽  
Morphometric Study ◽  
Computer Based ◽  
Normal Human ◽  
Human Ear

scholarly journals Does short-term endotracheal intubation affects the acoustic characteristics?

1970 ◽  
Vol 8 (1) ◽  
pp. 35-39 ◽  
Author(s):  
KC Toran ◽  
BK Lal
Keyword(s):  
Endotracheal Intubation ◽  
Invasive Technique ◽  
Short Term ◽  
Acoustic Characteristics ◽  
Laryngeal Function ◽  
Non Invasive ◽  
Computer Based ◽  
Normal Human ◽  
Human Ear ◽  
Post Intubation

Introduction: Endotracheal intubation can produce various degrees of temporary and sometimes permanent damage to the laryngotracheal mechanism. Recent development of computer based voice analysis technology can now detect a minute changes in acoustic waveforms which a normal human ear cannot. In the study we compared and analyzed the acoustic waveforms of 35 patients undergoing surgery under intubation anaesthesia. Objective: The aim of the present series is to analyze the effects of short term intubation with computerized voice laboratory. Materials and methods: Values of acoustic waveforms obtained from 35 patients were compared 48 hours after the short term endotracheal intubation anaesthesia. The comparisons were made in terms of perturbation (jitter and shimmer), harmonic- to noise ratio (HNR) and fundamental frequency (F0). Results: The pre-intubated voice characteristics when compared with the post-intubation group did not reveal any statistical difference (P>0.05). However, there was only a minimal decrease in F0. Conclusion: The study revealed that, short term intubation anaesthesia does not alter the acoustic characteristics. The analysis of acoustic waveforms is a non invasive technique that helps to evaluate the effects of tracheal intubation on laryngeal function, a technique that warrants further evaluation. Key words: Acoustic characteristics; Endotracheal intubation; Voice DOI: 10.3126/kumj.v8i1.3219 Kathmandu University Medical Journal (2010), Vol. 8, No. 1, Issue 29, 35-39

XVIII Tolerance of the Normal Human Ear to Topical Dimethyl Sulfoxide

1966 ◽  
Vol 75 (1) ◽  
pp. 208-215 ◽  
Author(s):  
Charles P. Lebo ◽  
Paul E. Poenisch ◽  
William S. McAfee
Keyword(s):  
Dimethyl Sulfoxide ◽  
Normal Human ◽  
Human Ear

scholarly journals Anatomical and morphometric study of goat middle ear ossicles (Capra aegagrus hircus)

2021 ◽  
Vol 73 (6) ◽  
pp. 1287-1293
Author(s):  
A.C. Santos ◽  
A. Gradela ◽  
M.D. Faria
Keyword(s):  
Middle Ear ◽  
Ossicular Chain ◽  
Northeastern Brazil ◽  
Morphometric Study ◽  
Ear Surgery ◽  
Surgery Training ◽  
Ear Ossicles ◽  
Capra Aegagrus ◽  
Length Width ◽  
Human Ear

ABSTRACT The social and economic roles of goat farming in Northeastern Brazil, allied to the fact that the use of goat middle ear ossicles for research and human ear surgery training has not yet been proposed, justify the study of their applicability as an experimental model. The middle ears of 19 goats (Capra aegagrus hircus) from the bone collection of the Laboratory and Didactic Anatomy Museum of Domestic and Wild Animals of the Federal University of Vale do São Francisco (UNIVASF) were dissected. The malleus, incus, and stapes were evaluated regarding their macroscopic morphology and biometry (length, width, and height). Ossicle morphology was similar to sheep, human, and bovine morphology. The malleus was 1.3 times heavier and 2.2 times longer than the incus, and 9.0 times heavier and 3.7 times longer than the stapes. The size relationship was positive between the stapes and the malleus and negative between the stapes and the incus. It is concluded that the middle ear size and the anatomical similarities with human ossicles make goats a useful model for experimental scientific studies, reconstructive surgery practice of the ossicular chain, and human ear surgery training.

scholarly journals Morphometric Study of Normal Human fetal Submandibular Salivary Gland

2014 ◽  
Vol 13 (9) ◽  
pp. 08-10
Author(s):  
Dr. Yogini K Karnewar ◽  
◽  
Dr. A A Holkunde ◽  
Dr. V B Bhagwat ◽  
Dr. D S Joshi ◽  
...  
Keyword(s):  
Salivary Gland ◽  
Morphometric Study ◽  
Submandibular Salivary Gland ◽  
Normal Human

Effect of IFN-α on Normal Human Hematopoiesis: An Immunohistochemical and Morphometric Study on Trephine Biopsy Specimens

1998 ◽  
Vol 18 (4) ◽  
pp. 247-253 ◽  
Author(s):  
JUERGEN THIELE ◽  
CLAUDIA WICKENHAUSER ◽  
CHRISTOPH NEUWIRTH ◽  
HANS-JOERG SCHULZE ◽  
UTA FLUCKE ◽  
...  
Keyword(s):  
Morphometric Study ◽  
Trephine Biopsy ◽  
Biopsy Specimens ◽  
Normal Human

A morphometric study of the human ear

2011 ◽  
Vol 64 (1) ◽  
pp. 41-47 ◽  
Author(s):  
K. Skaria Alexander ◽  
David J. Stott ◽  
Branavan Sivakumar ◽  
Norbert Kang
Keyword(s):  
Morphometric Study ◽  
Human Ear

scholarly journals A measurement technique for cell adhesiveness

Blood ◽  
1975 ◽  
Vol 46 (2) ◽  
pp. 287-294
Author(s):  
IT Young ◽  
SE Sher
Keyword(s):  
Statistical Analysis ◽  
Measurement Technique ◽  
Peripheral Blood ◽  
Human Peripheral Blood ◽  
Chronic Myelocytic Leukemia ◽  
Cell Type ◽  
Measuring Cell ◽  
Myelocytic Leukemia ◽  
Normal Human

Determination of the percentage of cells in clumps on a stained smear of human peripheral blood porvided a useful, accurate technique for measuring cell adhesiveness. Smears of human peripheral blood drawn with EDTA were prepared on a blood slide centrifuge, stained, and examined under a light microscope. Statistical analysis showed that the method resulted in a Poisson distribution of particles on the slide, where a particle was considered to be a simple cell, or two or more cells which appeared to be touching, Analysis of the distributions of erythrocytes and leukocytes showed that clumps were formed before the cells were deposited on the slide. When adhesiveness of erythrocytes or leukocytes was increased by incubation with antiserum to the corresponding cell type, the percentage of that cell type in clumps increased proportionately, Preliminary results using the method showed that normal human donors had similar to 1% of their erythrocytes and 1- 5% of their leukocytes in clumps. In chronic myelocytic leukemia, as many as 60% of the leukocytes were in clumps.

scholarly journals Morphological and morphometric study on sphenoid and basioccipital ossification in normal human fetuses

2011 ◽  
Vol 51 (3) ◽  
pp. 138-148 ◽  
Author(s):  
Qinghua Zhang ◽  
Hui Wang ◽  
Jun Udagawa ◽  
Hiroki Otani
Keyword(s):  
Morphometric Study ◽  
Human Fetuses ◽  
Normal Human

scholarly journals Designing an improved structure of the tool for repairing the brake pipe connectors in vehicles

2021 ◽  
Vol 1 (1 (109)) ◽  
pp. 20-26
Author(s):  
Sergiy Gnitko ◽  
Ievgen Vasyliev ◽  
Stanislav Popov
Keyword(s):  
Finite Element ◽  
Service Life ◽  
Measurement Technique ◽  
Passenger Cars ◽  
Element Simulation ◽  
Deformation State ◽  
Computer Based ◽  
Conventional Structure ◽  
Torque Values ◽  
Brake Cylinder

This paper addresses the issue of difficulties in servicing the brake pipe connectors for passenger cars, the service life of which exceeds 8‒10 years, which is associated with the deteriorated loosening of connectors. The existing ways to loosen the connectors of brake pipes have been investigated, especially those whose dismantling is complicated due to the corrosion and contamination of mated surfaces as a result of their wetting when driving a car. A conventional structure of the connector has been analyzed, which is installed in that place of the car that is the most unprotected from moisture and dirt – on the brake cylinder. The conditions that do not contribute to its failure-free loosening have been examined. The design of a specialized split clamping ring wrench has been considered, which can transmit the greatest value of the torque to the connector when loosening it; sometimes, however, its predefined value would not suffice. A computer-based finite-element simulation was employed to derive the models of the deformation state for the node «connector ‒ wrench». Based on the analysis of the models of different deformation state of a specialized split clamping ring wrench, the required profile of the geometrically balanced locked hexagonal profile of the wrench was defined. The analysis of the efficiency of the tightening and loosening level is determined by comparing the numerical values of the torque, which is applied to the connectors of the brake pipes. The torque values are measured by a specially devised technique. The introduction of the developed measurement technique makes it possible to compare the efficiency of wrenches of different designs by analyzing the maximum values of torques, which the wrenches can transmit to the connectors. Taking into consideration the identified shortcomings in the structure of the brake pipe connectors, the shape of the connector has been designed that is free from the specified drawbacks. The new structure provides for the possibility of using a conventional carob wrench for loosening when the mated surfaces are exposed to contamination and corrosion

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