scholarly journals The Helium-to-Metals Enrichment Ratio in Planetary Nebulae

1993 ◽  
Vol 155 ◽  
pp. 583-583
Author(s):  
C.M.L. Chiappini ◽  
W.J. Maciel
Keyword(s):  
Chemical Evolution ◽  
Planetary Nebulae ◽  
Hii Regions ◽  
Big Bang ◽  
Enrichment Ratio ◽  
Helium Abundance ◽  
Galactic Chemical Evolution ◽  
Big Bang Theory ◽  
The Big Bang

The helium-to-metals enrichment ratio (dY/dZ) and the pregalactic helium abundance (Yp) are important parameters for the understanding of the galactic chemical evolution, and also as a cosmological test to the Big Bang theory. In this work, we present a new determination of these parameters based on a sample of galactic HII regions, HII galaxies, and planetary nebulae.

scholarly journals Measurements of 4He in metal-poor extragalactic H ii regions: the primordial Helium abundance and the ΔY/ΔO ratio

2009 ◽  
Vol 5 (S268) ◽  
pp. 91-100 ◽  
Author(s):  
Manuel Peimbert ◽  
A. Peimbert ◽  
L. Carigi ◽  
V. Luridiana
Keyword(s):  
Chemical Evolution ◽  
H Ii Regions ◽  
Helium Abundance ◽  
Galactic Chemical Evolution ◽  
Primordial Helium

AbstractWe present a review on the determination of the primordial helium abundance Yp, based on the study of hydrogen and helium recombination lines in extragalactic H ii regions. We also discuss the observational determinations of the increase of helium to the increase of oxygen by mass ΔY/ΔO, and compare them with predictions based on models of galactic chemical evolution.

scholarly journals PN and Galactic Chemical Evolution

2003 ◽  
Vol 209 ◽  
pp. 551-558 ◽  
Author(s):  
Walter J. Maciel ◽  
Roberto D. D. Costa
Keyword(s):  
Chemical Evolution ◽  
Stellar Populations ◽  
Solar Neighbourhood ◽  
Enrichment Ratio ◽  
Galactic Chemical Evolution ◽  
Galactic Bulge ◽  
Radial Gradient ◽  
Space And Time ◽  
Time Variations

Recent applications of PN to the study of galactic chemical evolution are reviewed, such as PN and stellar populations, abundance gradients, including their space and time variations, determination of the He/H radial gradient and of the helium-to-metals enrichment ratio, and the [O/Fe] x [Fe/H] relation in the solar neighbourhood and in the galactic bulge.

A swift and simple refutation of the Kalam cosmological argument?

1999 ◽  
Vol 35 (1) ◽  
pp. 57-72 ◽  
Author(s):  
WILLIAM LANE CRAIG
Keyword(s):  
Big Bang ◽  
Cosmological Argument ◽  
Convincing Argument ◽  
Realist Position ◽  
Big Bang Theory ◽  
Simple Demonstration ◽  
Kalam Cosmological Argument ◽  
John Taylor ◽  
The Big Bang ◽  
The Universe

John Taylor complains that the Kalam cosmological argument gives the appearance of being a swift and simple demonstration of the existence of a Creator of the universe, whereas in fact a convincing argument involving the premiss that the universe began to exist is very difficult to achieve. But Taylor's proffered defeaters of the premisses of the philosophical arguments for the beginning of the universe are themselves typically undercut due to Taylor's inadvertence to alternatives open to the defender of the Kalam arguments. With respect to empirical confirmation of the universe's beginning Taylor is forced into an anti-realist position on the Big Bang theory, but without sufficient warrant for singling out the theory as non-realistic. Therefore, despite the virtue of simplicity of form, the Kalam cosmological argument has not been defeated by Taylor's all too swift refutation.

scholarly journals Luz, Câmera... Ciência: Abordando as Ciências e suas relações através do filme "Interestelar" e da série "The Big Bang Theory"

2020 ◽  
Author(s):  
Vitor Martins Menezes ◽  
Aline Orvalho Pereira ◽  
Giuliana Coutinho Vitiello ◽  
Celi Rodrigues Chaves Dominguez
Keyword(s):  
Big Bang ◽  
Big Bang Theory ◽  
The Big Bang

scholarly journals The Use of Idioms and Wordplay in The Big Bang Theory Sitcom

Tertium ◽  
2021 ◽  
Vol 5 (2) ◽  
Author(s):  
Lendita Kryeziu
Keyword(s):  
Age Groups ◽  
Pop Culture ◽  
Big Bang ◽  
Point Of View ◽  
Communication Tool ◽  
Vast Number ◽  
Big Bang Theory ◽  
Public Speakers ◽  
The Big Bang

Language is a powerful communication tool. A skilful person uses words and manipulates them for different purposes; be that for persuading clients in buying different products or joining a congregation; soothing aggravated patients and consoling people who lost their loved ones. Language is used for teaching, informing, entertaining and making people laugh. Many public speakers, teachers, politicians and leaders use humour for breaking the ice and engaging the audience into listening. Moreover, nowadays a vast number of sitcoms are popular among different age groups based on the topics, genre and the audience’s field of interest. One such series which has caught the interest of a broader audience on Netflix is The Big Bang Theory. The usage of idioms, wordplays, puns, rhyming structures, pop culture language and scientific jargon, permeated with humour, are widely spread into the characters’ daily conversations through entire episodes. From the linguistic point of view, the corpus of The Big Bang Theory episodes will be thoroughly analysed for finding the relevance of using idioms, wordplays, puns and other structures in transmitting humorous messages to the audience.

scholarly journals PRAGMATIC PERSPECTIVES OF VERBAL HUMOR IN AN AMERICAN SITCOM

2020 ◽  
Vol 8 (3) ◽  
pp. 49-55
Author(s):  
Siti Sarah Fitriani ◽  
Chairina Nasir ◽  
Farrah Fajrianti Fonna
Keyword(s):  
Qualitative Study ◽  
Big Bang ◽  
Pragmatic Approach ◽  
Illocutionary Acts ◽  
Illocutionary Act ◽  
Big Bang Theory ◽  
The Big Bang ◽  
The Way ◽  
Descriptive Qualitative ◽  
Cooperative Principles

Purpose of the study: This study aimed at finding out the types of illocutionary acts which create humor effect in the sitcom The Big Bang Theory Episode The Thespian Catalyst (S04E14). Methodology: A descriptive qualitative study with the pragmatic approach of illocutionary acts suggested by Searle (1975) was undertaken by observing the utterances spoken by all the characters in the sitcom. Main findings: The results of the study showed that there were four types of illocutionary acts found in the sitcom; assertive, directive, commissive, and expressive. Those illocutionary acts also flouted the maxim of Cooperative Principles, i.e. quality and relevance. In conclusion, it can be known that the humor that occurred in the sitcom is the result of the way the characters conveyed illocutionary acts that also have flouted the maxim as in the Cooperative Principles. Applications of this study: This study is expected to be a reference for other studies in the field of pragmatics particularly in illocutionary acts. Novelty/Originality of this study:This current study, however, would discuss The Big Bang Theory sitcom by using the Illocutionary Act framework proposed by Searle (1975).

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