scholarly journals The production of artificial vowel sounds

1923 ◽  
Vol 102 (719) ◽  
pp. 752-765 ◽  
Keyword(s):  
Oral Cavity ◽  
Two Component ◽  
The Subject

Observations by ear made by the writer indicated that each of the vowel sounds in his own voice consisted, when breathed ( i. e . without phonation), of two component notes due to resonances in the oral cavity. The resonances observed—which are given to the nearest semitone—are set out in the accompanying Table or Chart, and a description of the observa­tions which it summarises forms the subject of a separate communication to the ‘Journal of the International Phonetics Association.'

scholarly journals Hydrophobic Biomimetic Nanoparticles drives Size-dependent Remodelling in Asymmetric Bilayers

2020 ◽  
Author(s):  
Sang Noh ◽  
Rebecca Notman
Keyword(s):  
Membrane Structure ◽  
Phase Interface ◽  
Line Tension ◽  
Size Dependent ◽  
Membrane Fission ◽  
Micelle Structure ◽  
Two Component ◽  
Biomimetic Nanoparticles ◽  
The Subject ◽  
Mixed Bilayer

The interactions between heterogeneous components in a biomimetic bilayer can control its physical properties such as its rigidity, local and bulk curvature and propensity towards phenomena such as membrane fission and fusion. In particular, nanoparticles (NPs) have been subjects of intense interest due to their similar scale to the bilayer width and its ability to affect local membrane structure. Generally, it is understood that hydrophobic components are energetically favoured to adsorb within the hydrophobic interior of a biomimetic bilayer. However, how such NPs interact in the presence of heterogeneous aggregates in the bilayer has been the subject of much debate. To better understand the effects of the integration of nanoscale components on heterogeneous mixed bilayer, we have simulated a series of generic hydrophobic NPs interacting with a phase-separating two-component surfactant bilayer. We find that the hydrophobic NP tends to aggregate at the phase interface, acting as a line tension relaxant i.e. a lineactant on the phase separated interface, which results in a variety of demixing behavior. We demonstrate that depending on the size of the NP, the localized softening of surfactants and the formation of a mixing gradient of surfactants can drive the a cap/bud formation around the NP, as well as the formation of a NP-micelle structure<br>

scholarly journals The Flexmount Ringlight: An Inexpensive Lighting Solution for Intraoral Photodocumentation

2009 ◽  
Vol 24 (1) ◽  
pp. 21-26
Author(s):  
Michael Joseph C. David ◽  
Antonio H. Chua
Keyword(s):  
Oral Cavity ◽  
Light Emitting Diode ◽  
Tertiary Care ◽  
Motion Blur ◽  
Care Hospital ◽  
Digital Cameras ◽  
Light Emitting ◽  
Quick Release ◽  
The Subject ◽  
Working Distance

Objective: To fabricate an inexpensive, reproducible and portable ringlight with flexible, quick-release mount for use with point-and-shoot consumer digital cameras in intraoral photodocumentation Materials and Methods: Design: Instrumentation Setting: Tertiary Care Hospital Procedure: A commercially-available battery-powered mountaineer’s LED (Light Emitting Diode) headlight (manufacturer, place) was converted into a portable ringlight with a flexible, quick-release mount for intraoral photodocumentation. Results: The Flexmount Ringlight delivered an even and white illumination of the oral cavity and oropharynx at a working distance of more than 5cm from the subject in focus. It resulted in sharper pictures due to its constant illumination that assisted the camera’s autofocus system in getting accurate focusing intraorally. It also allowed the camera to use smaller apertures that have put more elements in focus, and faster shutter speeds that have markedly reduced motion blur. Conclusion:  The Flexmount Ringlight is an inexpensive, easy-to-assemble and portable ringlight that can be used in point-and-shoot consumer digital cameras. Its constant and even illumination resulted in reproducible, sharp, shadowless photographs of the oral cavity and oropharynx. Keywords: ringlight, flexmount, intraoral photodocumentation

The Effects of Alcohol and Non-Alcohol Mouthwash on Oral Cavity Environmental Alterations (Salivary pH and Plaque Index)

2020 ◽  
Vol 48 ◽  
pp. 77-84
Author(s):  
Yumi Lindawati ◽  
G. Nazriyanti ◽  
P.W.U. Ritonga ◽  
I.P. Sari
Keyword(s):  
Experimental Study ◽  
Oral Cavity ◽  
Plaque Index ◽  
Test Results ◽  
Exclusion Criteria ◽  
Salivary Ph ◽  
Before And After ◽  
Post Test ◽  
The Subject ◽  
Ph Dependent

Mouthwash is an additional mechanical oral cavity cleaning method which is known to reduce oral bacterias that causes plaque build ups. Mouthwash may and may not contain alcohol. The objective of this study was to determine the alterations on the oral cavity environment (salivary pH and plaque index) before and after gargling with alcohol and non-alcohol mouthwash, and to analyze which of the mouthwash is more effective. This study was an experimental study with one group pre test and post test experimental design. The subject of this study was 16 of University of Sumatera Utara’s female undergraduates whose age ranges from 18–23 years old and accorded to the inclusion and exclusion criteria. Subjects were divided in two groups, subjects were instructed to used the mouthwash twice a day for seven days, then salivary pH and plaque index were measured at third and seventh day of used. Repeated Annova test results shown a significant decreas on salivary pH and plaque index after gargled with mouthwash containing alcohol, in the non-alcohol mouthwash there was a significant decreased in plaque index but none on the salivary pH. Dependent T-test results shown that there were no difference in salivary pH and plaque index after gargled with alcohol containing and non-alcohol mouthwash. This study shows that non-alcohol mouthwash is better because there were a significant decrease in plaque index, without caused significant decreases in pH scores.

scholarly journals GAMBARAN PENGETAHUAN STAIN GIGI PADA PEROKOK DI KELURAHAN BAHU LINGKUNGAN V

e-GIGI ◽  
2014 ◽  
Vol 2 (2) ◽  
Author(s):  
Christina Putri Amin Sinaga ◽  
B. S. Lampus ◽  
Ni Wayan Mariati
Keyword(s):  
Oral Cavity ◽  
Descriptive Study ◽  
Good Knowledge ◽  
Tooth Surface ◽  
Cross Sectional ◽  
Poor Knowledge ◽  
Knowledge Based ◽  
The Subject ◽  
The Aesthetic

Abstract: The stain is a pigmented deposits in the teeth surface and is one of the aesthetic problem. Smooking increaces one factor contributing to the occutence of multiple disordersin in the oral cavity, one of which can cause tooth stain on the tooth surface. The habit of smooking cigarettes include the type, duration of smooking and number of cigarettes smoked a day. The purpose of this study to determine the knowledge of stain teeth in smokers in kelurahan Bahu lingkungan V. This is a descriptive study with cross-sectional approach. The research instrumen used was a questionnaire containing some questions about stain teeth. The result is 25 of the subject (29,4%) have a good knowledge, 39 of the subject (45,9%)enough knowledge and 21 of the subject (24,7%) poor knowledge. Based on this study, the are some suggestions, one of it is to keep the good knowledge and reduce smooking to prevent the foemation of tooth stain on tooth surface. Keywords: stain of the teeth, knowledge, smoker.     Abstrak: Stain gigi adalah deposit berpigmen pada permukaan gigi dan merupakan salah satu masalah estetik. Kebiasaan merokok meningkatkan salah satu faktor penyebab terjadinya beberapa kelainan di rongga mulut, salah satunya dapat menimbulkan stain gigi pada permukaan gigi. Kebiasaan merokok meliputi jenis rokok, lama merokok dan jumlah rokok yang dihisap per hari. Tujuan dari penelitian ini untuk mengetahui pengetahuan tentang stain gigi pada perokok di kelurahan Bahu lingkungan V. Penelitian ini bersifat deskriptif dengan pendekatan cross-sectional. Instrumen penelitian yang digunakan ialah kuesioner yang berisi tentang beberapa pertanyaan tentang stain gigi. Hasilnya ialah sebanyak 25 responden (29,4%) mempunyai pengetahuan baik, 39 responden (45,9%) mempunyai pengetahuan cukup dan 21 responden (24,7%) mempunyai pengetahuan kurang. Berdasarkan penelitian ini, terdapat beberapa hal yang disarankan antara lain mempertahankan pengetahuan yang sudah cukup baik dan mengurangi kebiasaan merokok agar tidak terjadinya pembentukan stain gigi pada permukaan gigi. Kata kunci: Stain gigi, pengetahuan, perokok.

scholarly journals THE STUDY OF THRESHOLDS OF PAIN SENSITIVITY OF ORAL MUCOSA TO MECHANICAL STIMULI

2018 ◽  
Vol 22 (1) ◽  
pp. 11-17
Author(s):  
A. S Arutyunov ◽  
S. S Pertsov ◽  
Sergey Aleksandrovich Muslov ◽  
Z. L Shanidze
Keyword(s):  
Oral Cavity ◽  
Mucous Membrane ◽  
Oral Mucosa ◽  
Pain Sensitivity ◽  
Mechanical Action ◽  
Mechanical Stimuli ◽  
Average Value ◽  
Dental Prostheses ◽  
The Subject ◽  
The Mathematical Model

Tactile and pain sensitivity of the oral mucosa has been the subject of study of a number of researchers. However, the numerical values of the thresholds of the excitation of the baro - and mechanoreceptors of the mucosa of the oral cavity not sufficiently detailed in the literature, experimental data is highly scattered, often presented without specifying the method of measurement or sections of the jaws, which were received. However, the authors note the unequal sensitivity of the mucous membrane in its different areas and its dependence on the presence or absence of a number of chronic diseases. Systematic study on the diagnosis of sensitivity associated with dental prostheses of the prosthetic bed tissues to pressure, virtually no. In this report the authors made some attempt to rectify this gap. It shows the numerical values of thresholds of pain sensitivity of the mucous membrane of the oral cavity of humans and animals by mechanical action on the basis of literary data and results of numerical analysis of the mathematical model “obturator maxillary prosthesis - mucosa the edges of the defect of the upper jaw”. The average value of the lower threshold of pain sensitivity was 20,72 g/m2 according to the data of different authors, and the upper limit was 63,82 g/m2.

scholarly journals Hydrophobic Nanoparticles Drives Size-Dependent Remodelling in Asymmetric Bilayers

2020 ◽  
Author(s):  
Sang Noh ◽  
Rebecca Notman
Keyword(s):  
Physical Properties ◽  
Membrane Structure ◽  
Phase Interface ◽  
Line Tension ◽  
Bud Formation ◽  
Size Dependent ◽  
Membrane Fission ◽  
Micelle Structure ◽  
Two Component ◽  
The Subject

The interactions between heterogeneous components in a biomimetic bilayer controls its physical properties such as its rigidity, local and bulk curvature and propensity towards phenomena such as membrane fission and fusion. In particular, membrane proteins (MPs) and nanoparticles (NPs) have been subjects of intense interest due to their similar scale to the bilayer width and because of their ability to affect local membrane structure. However, how such NPs interact in the presence of heterogeneous aggregates in the bilayer has been the subject of much debate, especially its effect on raft-like structures. To better understand the effects of hydrophobic integration of nanoscale components on such raft-like structures, we have simulated a series of generic hydrophobic NPs interacting with a phase-separating two-component surfactant bilayer. We find that the hydrophobic NP tends to aggregate at the phase interface, acting as a line tension relaxant i.e. a lineactant on the phase separated interface, which results in differing demixing behavior. In particular, we demonstrate that depending on the size of the NP, the effect of the line tension can drive the a cap/bud formation around the NP, ultimately resulting in the formation of a NP-micelle structure.<br><br>

The ways of expressing attributive possession in Ket: possessive syntactic constructions

2021 ◽  
pp. 235-251
Author(s):  
S. S. Butorin ◽  
Keyword(s):  
Structural Models ◽  
Personal Pronoun ◽  
Possessive Constructions ◽  
Two Component ◽  
The Subject ◽  
Multiple Component ◽  
Semantic Scope ◽  
Derivation Process

The paper analyzes the structural models of Ket possessive constructions. The means of ex-pressing possessive construction components and the ways of marking possessive relations between the first possessive construction component denoting the subject of possession (a possessor) and the second component indicating the object of possession (a possessum) are considered. The study is based on the conception proposed by E. Vajda, according to which the possessive markers are possessive pronominal clitics, used as either clitics or proclitics, depending on the context. Two-component and multiple-component constructions are identi-fied. The two-component constructions contain a possessor, a possessum, and a linking mark-er, the semantic scope of which is a possessum. The non-expanded and expanded possessive constructions are analyzed. Both the first and the second substantive component of the two-component construction may be expanded by an attribute. The two-component constructions having a possessor expanded by an attribute are characterized by a distant ordering of a pos-sessor noun and a possessum noun, including distant positions of a possessive proclitic and a possessum noun. The derivative processes of transforming possessive constructions are con-sidered. The rising derivation process consists of embedding one more possessor into the con-struction with an original possessor. Both possessors are marked by appropriate possessive pronominal clitics. It is found that in Ket, the recessive derivation of omitting a possessor noun expressed by a personal pronoun stem is available as well, resulting in a construction with a non-expressed (omitted) possessor. The corresponding possessive pronominal clitic attaching proclitically to possessum noun is overtly retained at the surface morphosyntactic level.

scholarly journals Localised Leishmaniasis of Oral Mucosa: Report of an Unusual Clinicopathological Entity

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Deepak Passi ◽  
Sarang Sharma ◽  
Shubharanjan Dutta ◽  
Chandan Gupta
Keyword(s):  
Visceral Leishmaniasis ◽  
Oral Cavity ◽  
Cutaneous Leishmaniasis ◽  
Oral Lesion ◽  
Sodium Stibogluconate ◽  
Review Of Literature ◽  
Mucocutaneous Leishmaniasis ◽  
Mucosal Leishmaniasis ◽  
The Subject ◽  
Lesion Treatment

The term leishmaniasis comprises of a group of diseases caused by different species of a protozoan called Leishmania. There are three main clinical forms of leishmaniasis: visceral leishmaniasis, cutaneous leishmaniasis, and mucocutaneous leishmaniasis. Exclusive involvement of the mucosa is very rare. We present a case of mucosal leishmaniasis located in the oral cavity. The only manifestation of leishmaniasis disease in the described case was the appearance of an oral lesion. Treatment was provided in the form of antimoniates (oral miltefosine and systemic sodium stibogluconate). A review of literature is made on the subject.

Gerontotechnology and diseases of the mucous membranes of the oral cavity

2019 ◽  
Author(s):  
Светлана Токмакова ◽  
S. Tokmakova ◽  
Ольга Бондаренко ◽  
Ol'ga Bondarenko ◽  
Татьяна Воблова ◽  
...  
Keyword(s):  
Oral Cavity ◽  
Role Playing ◽  
Educational Process ◽  
Self Control ◽  
Practical Training ◽  
Persons With Disabilities ◽  
Role Playing Games ◽  
Mucous Membranes ◽  
The Subject ◽  
Independent Work

The manual is designed to study the diagnosis, differential diagnosis, prevention and treatment of diseases of the oral mucosa. In the formation of a text base tutorials used program of discipline "Stomatology" module "Gerontotechnology and diseases of the mucous membranes of the oral cavity". All the themes associated with the programs, the curricula of training on discipline "Stomatology" and the professional standard "dentist". In accordance with the requirements of the GEF, in the educational process are widely used active and interactive forms of training, such as group discussions, role-playing games, solving situational problems, etc. Independent work of students involves preparing for practical training in the system of distance learning agmu (Moodle). For persons with disabilities of the musculoskeletal system and persons with disabilities provides the opportunity to remotely familiarize themselves with the materials of classes, as well as testing on the topics of practical training in Moodle. Manual allows to deepen knowledge on the subject "Dentistry" module "Gerontotechnology and diseases of the mucous membranes of the mouth" with the formation of students ' skills of independent synthesis of a coherent picture of the subject. The textbook consists of an introduction, chapters, control tasks, conclusion, standard answers to control tasks, references and abbreviations. For ease of perception, a uniform organization and categorization of the text of all chapters has been introduced. At the end of each Chapter, control questions, test tasks and situational tasks are proposed, aimed at consolidating the material and assessing the effectiveness of mastering the studied topic. Situational task contains: the patient's complaints, anamnesis, data of objective examination and the assignment to her. For self-control of students in the manual answers to test tasks and situational tasks. The publication is intended for students of dental faculties of medical schools, as additional literature and to prepare for GIA.

Sign in / Sign up

Export Citation Format

Share Document