scholarly journals Ground sections of teeth: histopathological study modality

2019 ◽  
Vol 7 (4) ◽  
pp. 1384
Author(s):  
Suresh Motilal Yadav ◽  
Rupali Wakode ◽  
Sourab Kumar ◽  
Abhishek Jadhav
Keyword(s):  
Oral Pathology ◽  
Vital Role ◽  
Natural Phenomenon ◽  
Histopathological Study ◽  
Industrial Accidents ◽  
Legal Cases ◽  
Airplane Accidents ◽  
Mass Disasters ◽  
Study Modality ◽  
Volcanic Explosions

Ground sections of teeth or bone are considered best solutions for the study of any hard tissues in the study of histopathology. Various studies have been performed like progression of dental caries, enamel studies, dentin studies, cementum annulation studies, bone morphologies, age determinaton studies, etc. It is important study part in any forensic studies where mass disasters occurring as natural phenomenon of cyclonic events, earth quakes, floods and volcanic explosions and airplane accidents, industrial accidents and terror related acts. Forensic dentistry has played a vital role and many medico-legal cases are solved by studying the teeth. Ground sections study is important in any part of research. For a dentist this phenomenon is less understood, and this article brings in limelight various methods and study pattern of ground sections of teeth. With this knowledge an understanding and performing ground sections of teeth becomes a well start for dental graduates. Various other modalities in histopathology are decalcification studies, histopathological staining procedures, special stains procedures, immunohistochemistry. All the histopathological modalities have their own importance and are used appropriately in the study of oral pathology.

Resuscitation Potentials in Mass Disasters

1986 ◽  
Vol 2 (1-4) ◽  
pp. 34-47 ◽  
Author(s):  
Peter Safar
Keyword(s):  
Infectious Diseases ◽  
Emergency Medical Services ◽  
Medical System ◽  
Medical Services ◽  
Nuclear Accidents ◽  
Industrial Accidents ◽  
Emergency Medical ◽  
Mass Disasters ◽  
Political Economic ◽  
National Disaster

Mass disastersare events which overwhelm, damage or destroy local Emergency Medical Services (EMS) systems, and therefore need the response of a State or National Disaster Medical System (NDMS). Natural mass disasters include major earthquakes, floods, hurricanes and fires. Manmade mass disasters include major fires, industrial accidents, wars, and nuclear accidents. Mass disasters must be distinguished from “multicasualty incidents” (MCI), such as major transportation accidents, which the local EMS system should be able to handle, if necessary, with the assistance of surrounding (regional) EMS systems. Endemic-epidemic disasters (e.g., droughts, famines, infectious diseases, and refugee problems) are catastrophes which deserve separate considerations, as they require ongoing political-economic solutions.

AMELOGLYPHICS-AN UPDATED REVIEW

2021 ◽  
pp. 44-46
Author(s):  
Linda Christabel. S ◽  
Merrylda Claribel. S ◽  
Sushmitha. M ◽  
Mohammed Haroon. A. L ◽  
Karpagam. S ◽  
...  
Keyword(s):  
Soft Tissues ◽  
Forensic Odontology ◽  
Vital Role ◽  
Biometric System ◽  
Hard Tissue ◽  
Gas Leakage ◽  
Biometric Systems ◽  
Stored Information ◽  
Mass Disasters ◽  
Modern Era

In this modern era equipped with technologies, the crime rates are increasing exponentially. This requires newer methodologies to identify a person who is a victim as well as the perpetruator. Automated biometric systems helps in identifying the individuals by the stored information in the database which are unique for each individual. Some of the important methods are ngerprint biometrics and iris scanning.As these methods involves soft tissues they cant be relied upon during mass disasters like burn accidents and gas leakage accidents. Hence, a biometric system using the hard tissue is required for better identication of the individuals. Thus, Ameloglyphics is introduced to aid in identication of individuals died during mass disasters and it plays a vital role in forensic odontology. This review highlights this technology in detail.

scholarly journals The Management of Na-Tech Risk Using Bayesian Network

Water ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 1966
Author(s):  
Giuseppa Ancione ◽  
Maria Francesca Milazzo
Keyword(s):  
Bayesian Network ◽  
Dynamic Assessment ◽  
Risk Index ◽  
Geographical Information ◽  
Natural Phenomenon ◽  
Industrial Accidents ◽  
Effective Prevention ◽  
Risk Levels ◽  
Italian Case ◽  
Risk Manager

In the last decades, the frequency and severity of Natural-Technological events (i.e., industrial accidents triggered by natural phenomena or Na-Techs) increased. These could be more severe than simple technological accidents because the natural phenomenon could cause the prevention/mitigation/emergency systems fail. The dynamic assessment of the risk associated with these events is essential for a more effective prevention and mitigation of the consequences and emergency preparation. The main goal of this study is the development of a fast and dynamic tool for the risk manager. An approach supporting the management of the consequence is presented. It is based on the definition of a risk-related index, presented in the form of a discrete variable that combines frequency and magnitude of the events and other factors contributing to the worsening of Na-Tech. A properly designed Geographical Information System (GIS) allows the collection and processing of territorial information with the aim to create new data contributing to the quantification of the Na-Tech risk index. A Bayesian network has been built which efficiently lends in including within the model multiple elements with a direct or indirect impact on the distribution of risk levels. By means of this approach, a dynamic updating of the risk index is made. The proposed approach has been applied to an Italian case-study.

scholarly journals Skin Ageing: Pathophysiology and Current Market Treatment Approaches

2020 ◽  
Vol 13 (1) ◽  
pp. 22-30 ◽  
Author(s):  
Manupriya Chaudhary ◽  
Azmi Khan ◽  
Madhu Gupta
Keyword(s):  
Cell Cycle ◽  
Free Radical ◽  
Older People ◽  
Older Persons ◽  
Biomedical Applications ◽  
Vital Role ◽  
Review Article ◽  
Natural Phenomenon ◽  
Endogenous Factors ◽  
Exogenous Factors

: Ageing is a natural phenomenon which is a fold, ridge and crease in the skin that occurs due to loss of body mass, poor hydration, disintegration of dermis and epidermis junction. The Skin ageing process involves many changes that occur due to the combination of both endogenous factors (gene mutation, cellular metabolism, and hormonal factor) and exogenous factors (U.V, pollutants, chemical, and toxins). In 1950, the number of older people were found to be almost 205 million across the globe. But this number almost got 4 times by the year 2012 and the number of older persons increased to a massive amount of 810 million. The ageing of the skin occurs due to various mechanisms like glycation, free radical, cell cycle, and cellular and molecular mechanism of skin ageing. In this review article, we have discussed the treatment, worldwide newer therapies and marketed formulation that are currently available for the reduction of skin ageing. The most promising and revolutionizing field of nanotechnology is mostly applied in the field of dermatology, cosmetics, and biomedical applications. Nanotechnology also plays a vital role in increasing the efficacy of the product.

Ultrastructure of Lymphatic Capillaries in the Transport of Colloidal Particles

1967 ◽  
Vol 25 ◽  
pp. 186-187
Author(s):  
L. V. Leak ◽  
J. F. Burke
Keyword(s):  
Connective Tissue ◽  
Colloidal Particles ◽  
Ultrastructural Level ◽  
Vital Role ◽  
Time Intervals ◽  
Thorium Dioxide ◽  
Lymphatic Capillary ◽  
Tissue Area ◽  
Rapid Removal ◽  
Tissue Fluids

The vital role played by the lymphatic capillaries in the transfer of tissue fluids and particulate materials from the connective tissue area can be demonstrated by the rapid removal of injected vital dyes into the tissue areas. In order to ascertain the mechanisms involved in the transfer of substances from the connective tissue area at the ultrastructural level, we have injected colloidal particles of varying sizes which range from 80 A up to 900-mμ. These colloidal particles (colloidal ferritin 80-100A, thorium dioxide 100-200 A, biological carbon 200-300 and latex spheres 900-mμ) are injected directly into the interstitial spaces of the connective tissue with glass micro-needles mounted in a modified Chambers micromanipulator. The progress of the particles from the interstitial space into the lymphatic capillary lumen is followed by observing tissues from animals (skin of the guinea pig ear) that were injected at various time intervals ranging from 5 minutes up to 6 months.

Three-Dimensional reconstruction of isolated centrosomes by automated electron tomography

1994 ◽  
Vol 52 ◽  
pp. 310-311
Author(s):  
M.B. Braunfeld ◽  
M. Moritz ◽  
B.M. Alberts ◽  
J.W. Sedat ◽  
D.A. Agard
Keyword(s):  
Electron Tomography ◽  
Three Dimensional ◽  
Vital Role ◽  
Complex Nature ◽  
Animal Cells ◽  
Microtubule Organizing Center ◽  
Nucleation Sites ◽  
Dimensional Reconstruction ◽  
Organizing Center ◽  
Resolution Model

In animal cells, the centrosome functions as the primary microtubule organizing center (MTOC). As such the centrosome plays a vital role in determining a cell's shape, migration, and perhaps most importantly, its division. Despite the obvious importance of this organelle little is known about centrosomal regulation, duplication, or how it nucleates microtubules. Furthermore, no high resolution model for centrosomal structure exists.We have used automated electron tomography, and reconstruction techniques in an attempt to better understand the complex nature of the centrosome. Additionally we hope to identify nucleation sites for microtubule growth.Centrosomes were isolated from early Drosophila embryos. Briefly, after large organelles and debris from homogenized embryos were pelleted, the resulting supernatant was separated on a sucrose velocity gradient. Fractions were collected and assayed for centrosome-mediated microtubule -nucleating activity by incubating with fluorescently-labeled tubulin subunits. The resulting microtubule asters were then spun onto coverslips and viewed by fluorescence microscopy.

A modified approach to the teaching of oral pathology

1971 ◽  
Vol 35 (8) ◽  
pp. 513-516
Author(s):  
HP Gordon ◽  
AF Morgan
Keyword(s):  
Oral Pathology

Asiana Airlines Flight 214

2014 ◽  
Vol 4 (2) ◽  
pp. 113-121 ◽  
Author(s):  
Stephanie Chow ◽  
Stephen Yortsos ◽  
Najmedin Meshkati
Keyword(s):  
Human Factors ◽  
Aviation Safety ◽  
Cultural Factors ◽  
Vital Role ◽  
Cultural Issues ◽  
Flight Crew ◽  
Pilot Performance ◽  
Engineering Designs ◽  
Flight Deck

This article focuses on a major human factors–related issue that includes the undeniable role of cultural factors and cockpit automation and their serious impact on flight crew performance, communication, and aviation safety. The report concentrates on the flight crew performance of the Boeing 777–Asiana Airlines Flight 214 accident, by exploring issues concerning mode confusion and autothrottle systems. It also further reviews the vital role of cultural factors in aviation safety and provides a brief overview of past, related accidents. Automation progressions have been created in an attempt to design an error-free flight deck. However, to do that, the pilot must still thoroughly understand every component of the flight deck – most importantly, the automation. Otherwise, if pilots are not completely competent in terms of their automation, the slightest errors can lead to fatal accidents. As seen in the case of Asiana Flight 214, even though engineering designs and pilot training have greatly evolved over the years, there are many cultural, design, and communication factors that affect pilot performance. It is concluded that aviation systems designers, in cooperation with pilots and regulatory bodies, should lead the strategic effort of systematically addressing the serious issues of cockpit automation, human factors, and cultural issues, including their interactions, which will certainly lead to better solutions for safer flights.

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