scholarly journals Protective shield wins award

BDJ ◽  
2021 ◽  
Vol 231 (12) ◽  
pp. 793-793
Keyword(s):  
Protective Shield

Junction of the Epithelium and Lamina Propria of the Bovine Rumen Mucosa

1967 ◽  
Vol 25 ◽  
pp. 68-69
Author(s):  
Al W. Stinson
Keyword(s):  
Osmium Tetroxide ◽  
Squamous Epithelium ◽  
Short Chain Fatty Acids ◽  
Chloride Ions ◽  
Fermentation Products ◽  
Ruminant Species ◽  
Protective Shield ◽  
Stratified Squamous Epithelium ◽  
Lead Hydroxide ◽  
Acetic Acids

The stratified squamous epithelium which lines the ruminal compartment of the bovine stomach performs at least three important functions. (1) The upper keratinized layer forms a protective shield against the rough, fibrous, constantly moving ingesta. (2) It is an organ of absorption since a number of substances are absorbed directly through the epithelium. These include short chain fatty acids, potassium, sodium and chloride ions, water, and many others. (3) The cells of the deeper layers metabolize butyric acid and to a lesser extent propionic and acetic acids which are the fermentation products of rumen digestion. Because of the functional characteristics, this epithelium is important in the digestive process of ruminant species which convert large quantities of rough, fibrous feed into energy.Tissue used in this study was obtained by biopsy through a rumen fistula from clinically healthy, yearling holstein steers. The animals had been fed a typical diet of hay and grain and the ruminal papillae were fully developed. The tissue was immediately immersed in 1% osmium tetroxide buffered to a pH of 7.4 and fixed for 2 hrs. The tissue blocks were embedded in Vestapol-W, sectioned with a Porter-Blum microtome with glass knives and stained with lead hydroxide. The sections were studied with an RCA EMU 3F electron microscope.

scholarly journals Influence of Masks Protecting against SARS-CoV-2 on Thermal Comfort

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3315
Author(s):  
Ewa Zender-Świercz ◽  
Marek Telejko ◽  
Beata Galiszewska
Keyword(s):  
Thermal Comfort ◽  
Public Spaces ◽  
Point Of View ◽  
The Other ◽  
Health Policies ◽  
Thermal Manikin ◽  
Public Health Policies ◽  
Protective Shield ◽  
Full Face ◽  
The Impact

Due to the spread of the SARS-CoV-2 virus, most countries have tightened their public health policies. One way to limit the spread of the virus is to make mouth and nose cover compulsory in public spaces. The article presents the impact of wearing masks on the perception of thermal comfort. The following masks were analysed: FFP2, cotton, medical, PM2.5, half-face protective shield plastic and full-face protective shield plastic. The research was carried out for two scenarios of an ambient temperature: −20 and 30 °C. A thermal manikin was used for the tests. In the case of when a temperature equals 20 °C, the dry masks increase comfort, both general and local, while wet masks reduce comfort. On the other hand, at 30 °C, only wet masks do not increase discomfort. In addition, moist masks require less heat flux to achieve a certain skin temperature. However, it should be remembered that it is not advisable to wet the masks from the health point of view.

THE BRONZE SHIELD FROM THE BURIAL OF A MEDIEVAL ARCHER IN THE KUZNETSK DESPRESSION

2021 ◽  
Vol 27 ◽  
pp. 265-270
Author(s):  
PILIPENKO S. ◽  
◽  
SULEIMENOV M. ◽  
Keyword(s):  
Significant Role ◽  
Western Siberia ◽  
Volga Region ◽  
Burial Ground ◽  
The South ◽  
Protective Shield

A number of works written by leading Siberian weapons experts are devoted to the classification of this piece of personal armour. Issues of weapons development played a significant role in the lives of the medieval people in the South of Western Siberia. One of the most frequently encountered categories of inventory in the burials of nomads includes ranged weapons: parts of bows, arrows, quivers. Yu.S. Khudyakova [1980, p. 118] and VV. Gorbunova [2006, p. 35-62]. However, bow sets are not limited to bows, arrows and quivers. There are also other parts of archery equipment known from the nomadic antiquities of the Volga region, such as archers’ rings and pavises [Rudenko, 2005, p. 27-35], items that have never been found in the South of Western Siberia until recently. During his exploration of burial ground 3 from mound 3 of Konevo, A.M. Ilyushin [2012, p. 37] found a bronze plate, which he believed belonged to plate armour. However, further study of the objects found in burial ground 3 of mound 3 of Konevo, raised doubts whether this attribution of the excavated bronze plate is justified. Acquaintance with the materials of burial 3 of mound 3 of the Konevo burial ground, raised doubts about such an attribution of the revealed bronze plate. Keywords: medieval nomads, archeology, bow, arrows, protective shield, pavise, gastagna, archer, Kuznetsk Depression

scholarly journals Artistic Portrayal of Death as a Refuge from Morbidity: The Pillowman by Martin McDonagh and 4.48 Psychosis by Sarah Kane

2017 ◽  
Vol 7 (1) ◽  
pp. 101
Author(s):  
Sobia Kiran
Keyword(s):  
Death Drive ◽  
Social Conventions ◽  
Traumatic Memories ◽  
Protective Shield ◽  
Research Questions ◽  
Sarah Kane ◽  
The Relationship ◽  
Martin Mcdonagh

The Pillowman by Martin McDonagh and 4.48 Psychosis by Sarah Kane are psychological plays that deal with the relationship between Art, Death and Morbidity. Death is an artistic solution to put an end to the morbidity of attitude caused by toxic relationships, social conventions, and totalitarian institutions. Death, may it take form of suicide or murder, is presented as a Saviour to escape the torture, suffering, depression and tyranny. Art is the creative realm of death, a defensive tool or a protective shield against the repressed uneasy traumatic memories that causes extreme unpleasure. The objective of the paper is to explore the artistic portrayal of death as a refuge from morbidity addressing the research questions 1) How do 4.48 Psychosis by Sarah Kane and The Pillowman by Martin McDonagh suggest death as an escape from psychosis and life of suffering? 2) How does art become a source of realization of Death drive taking form of murder or suicide?

States before relations: On misrecognition and the bifurcated regime of sovereignty

2018 ◽  
Vol 44 (5) ◽  
pp. 829-847 ◽  
Author(s):  
Minda Holm ◽  
Ole Jacob Sending
Keyword(s):  
International System ◽  
The State ◽  
Great Powers ◽  
Fragile States ◽  
Sovereign State ◽  
Institutional Rule ◽  
Institutional Infrastructure ◽  
Protective Shield ◽  
Symbolic Structure ◽  
Liberal Thought

AbstractThe symbolic structure of the international system, organised around sovereignty, is sustained by an institutional infrastructure that shapes how states seek sovereign agency. We investigate how the modern legal category of the state is an institutional expression of the idea of the state as a liberal person, dependent on a one-off recognition in establishing the sovereign state. We then discuss how this institutional rule coexists with the ongoing frustrated search for recognition in terms of sociopolitical registers. While the first set of rules establishes a protective shield against others, regardless of behaviour, the second set of rules specify rules for behaviour of statehood, which produces a distinct form of misrecognition. States are, at one level, already recognised as sovereign and are granted rights akin to individuals in liberal thought, and yet they are continually misrecognised in their quest to actualise the sovereign agency they associate with statehood. We draw on examples from two contemporary phenomena – fragile states, and assertions of non-interference and sovereignty from the populist right and non-Western great powers, to discuss the misrecognition processes embedded in the bifurcated symbolic structure of sovereignty, and its implications for debates about hierarchy and sovereignty in world affairs.

One Atmosphere

2010 ◽  
Author(s):  
Peter Singer
Keyword(s):  
Climate Change ◽  
Scientific Evidence ◽  
Developed Countries ◽  
Montreal Protocol ◽  
Intergovernmental Panel ◽  
Policy Makers ◽  
Protective Shield ◽  
Third Assessment Report ◽  
The Developed Countries ◽  
Full Force

There can be no clearer illustration of the need for human beings to act globally than the issues raised by the impact of human activity on our atmosphere. That we all share the same planet came to our attention in a particularly pressing way in the 1970s when scientists discovered that the use of chlorofluorocarbons (CFCs) threatens the ozone layer shielding the surface of our planet from the full force of the sun's ultraviolet radiation. Damage to that protective shield would cause cancer rates to rise sharply and could have other effects, for example, on the growth of algae. The threat was especially acute to the world's southernmost cities, since a large hole in the ozone was found to be opening up each year over Antarctica, but in the long term, the entire ozone shield was imperiled. Once the science was accepted, concerted international action followed relatively rapidly with the signing of the Montreal Protocol in 1985. The developed countries phased out virtually all use of CFCs by 1999, and the developing countries, given a 10-year period of grace, are now moving toward the same goal. Getting rid of CFCs has turned out to be just the curtain raiser: the main event is climate change, or global warming. Without belittling the pioneering achievement of those who brought about the Montreal Protocol, the problem was not so difficult, for CFCs can be replaced in all their uses at relatively little cost, and the solution to the problem is simply to stop producing them. Climate change is a very different matter. The scientific evidence that human activities are changing the climate of our planet has been studied by a working group of the Intergovernmental Panel on Climate Change (IPCC), an international scientific body intended to provide policy makers with an authoritative view of climate change and its causes. The group released its Third Assessment Report in 2001, building on earlier reports and incorporating new evidence accumulated over the previous five years. The report is the work of 122 lead authors and 515 contributing authors, and the research on which it was based was reviewed by 337 experts.

scholarly journals A simple and effective protective shield for the ophthalmoscope to prevent COVID ‐19

2020 ◽  
Vol 36 (7) ◽  
pp. 570-571
Author(s):  
Yu‐Hung Lai ◽  
Shwu‐Jiuan Sheu ◽  
Hwei‐Zu Wang
Keyword(s):  
Protective Shield
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