scholarly journals A Comparative Study of the Quality of Apical Seal in Resilon/Epiphany SE Following Intra canal Irrigation With 17% EDTA, 10% Citric Acid, And MTAD as Final Irrigants – A Dye Leakage Study Under Vacuum

2017 ◽  
Author(s):  
Saravana Karthikeyan Balasubramanian
Keyword(s):  
Citric Acid ◽  
Comparative Study ◽  
Canal Irrigation

scholarly journals Winning, Losing, and the Quality of Democracy

2021 ◽  
pp. 003232172110261
Author(s):  
Richard Nadeau ◽  
Jean-François Daoust ◽  
Ruth Dassonneville
Keyword(s):  
Comparative Study ◽  
Electoral Systems ◽  
Motivated Reasoning ◽  
Quality Of Democracy ◽  
Electoral Democracy ◽  
Democratic Systems ◽  
The Comparative Study

Citizens who voted for a party that won the election are more satisfied with democracy than those who did not. This winner–loser gap has recently been found to vary with the quality of electoral democracy: the higher the quality of democracy, the smaller the gap. However, we do not know what drives this relationship. Is it driven by losers, winners, or both? And Why? Linking our work to the literature on motivated reasoning and macro salience and benefiting from the Comparative Study of Electoral Systems project—covering 163 elections in 51 countries between 1996 and 2018, our results show that the narrower winner–loser gap in well-established electoral democracies is not only a result of losers being more satisfied with democracy, but also of winners being less satisfied with their victory. Our findings carry important implications since a narrow winner–loser gap appears as a key feature of healthy democratic systems.

Study of graduate attributes of the university of Sydney and implications for building Chinese world-class universities

2021 ◽  
pp. 002072092098431
Author(s):  
Rui Zhao ◽  
Wan-Bing Shi
Keyword(s):  
System Theory ◽  
Comparative Study ◽  
High Position ◽  
Graduate Attributes ◽  
Graduate Employability ◽  
World Class ◽  
World Class Universities ◽  
The University ◽  
Relationship Of

The graduate attributes of the University of Sydney innovatively include the enabling conceptions and the translation conceptions of attributes and ensure that they are specifically oriented, reasonably structured and comprehensively designed. These scientifically constructed graduate attributes of the University of Sydney prove strong efficiency by the university taking up a high position in QS Graduate Employability Rankings in recent years. Chinese top-level universities, in the process of building world-class universities, also face the task of revising the graduate attributes and substantially enhancing the quality of talents cultivation, and can, therefore, learn the successful experience to revise their own graduate attributes on the basis of universities’ history, vision and specialty, on the premise of a sound cognition of the connotation, levels, and relationship of graduate attributes, and by means of System Theory, Phenomenography and comparative study.

scholarly journals Effect of Oral Administration of Selenium and Vitamin E on the Quality of Fresh, Refrigerated and Frozen Semen in French Bulldog Breed Dogs

2017 ◽  
Vol 45 (1) ◽  
pp. 7
Author(s):  
Marcelo George Mungai Chacur ◽  
Mariana Grandis Ripari de Souza ◽  
Camila Dutra de Souza ◽  
Camila Pires Cremasco
Keyword(s):  
Vitamin E ◽  
Citric Acid ◽  
Oral Administration ◽  
Liquid Nitrogen ◽  
Sperm Concentration ◽  
Oral Supplementation ◽  
Frozen Semen ◽  
French Bulldog ◽  
Fresh Semen

Background: New methodologies have been developed seeking to maximize pregnancy rate in female dogs created in commercial kennels, and also in order to maintain the quality of canine semen after dilution, refrigeration or freezing. One of the main factors that generate damage to sperm is oxidative stress, to minimize sperm damage, selenium and antioxidants like vitamin E are administered, by oral administration, seeking to improve the quality of semen. The objective was to study the effect of vitamin E and selenium, by oral administration, in the quality of fresh, refrigerated and frozen semen in adult dogs French Bulldog breed.Materials, Methods & Results: Semen samples were collected from 5 adult dogs, French Bulldog breed, being 2 semen drawing before the daily oral supplementation with vitamin E and selenium (ESE®) and semen drawing at 20, 40 and 60 days after the beginning of oral supplement. The ejaculated samples were diluted in TRIS - fructose citric acid (3.28 g TRIS-hydroxy-methyl-amino-methane, 1.78 g of citric acid monohydrate and 1.25 g of D - fructose, dissolved in 100 mL of distilled water and added of 20% egg yolk and 6% of glycerol. The characteristics evaluated in fresh semen were: volume (mL), color, appearance, concentration (x106 / mL), sperm motility (%), sperm strength (1 to 5) and morphology (%). For refrigerated and frozen semen were analyzed: sperm motility (%), sperm strength (1-5) and morphology (%). Diluted semen samples were centrifuged at: 1500 g/10 min and “pellets” formed by sperm of each ejaculated, detached from the tube wall were diluted homogeneously in the diluent TRIS type up to the final volume of 1.5 mL. After that, packaged in 0.5 mL French straws, kept under refrigeration at 5ºC/4 h, placed in nitrogen vapor at -120ºC/15 min, and dipped in liquid nitrogen at -196ºC and then stored on identified rachis and stored in liquid nitrogen container until the time of thawing in  water bath at 37°C/30 s for semen microscopic analysis. Data from fresh, refrigerated and frozen semen were statistically analyzed by analysis of variance and the average compared by 5% of Tukey test. Fresh semen sperm concentration differed (P < 0.05) between the samples, rising after 40 days after the beginning of oral supplementation with selenium and vitamin E. For the spermatic strength, better score (P < 0.05) was observed at collection 4, in 40 days after the beginning of oral supplementation to dogs. For fresh and refrigerated semen, the total defects, defects of head, acrosome and tail did not differ (P > 0.05) between the samples. Total sperm defects and minor head and tail defects did not differ (P > 0.05) between the samples in post-thawing. Regarding the acrosome defects after thawing, there was a significant reduction (P < 0.05) in samples performed 40 and 60 days after the beginning of oral supplementation with selenium and vitamin E.Discussion: Attention should be paid for what purpose the extenders within the refrigeration or freezing biotech will be used. The managed supplement, by oral administration, containing selenium and vitamin E, influenced beneficially raising the sperm concentration in fresh semen and decreasing the acrosome defects in frozen semen. Oral administration of supplementation with selenium and vitamin E is recommended for improving the quality of fresh and frozen semen in dogs.

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