scholarly journals Joint Discussion 11: The Lithium Problem Introduction

1995 ◽  
Vol 10 ◽  
pp. 437-438
Author(s):  
F. Spite

The exact title of the JD 11 was: “stellar and interstellar lithium and primordial nucleosynthesis”. The large amount of work recently done about lithium provided an incentive for a discussion among the members of several commissions of the IAU. Lithium is a peculiar element. Since it is not produced in supernovae (at least such a production is not proven and would be quite different from the production of the other elements) its presence in old material is a legacy of the primordial nucleosynthesis. But lithium is a fragile element, and from a theoretical point of view, there are arguments tending to conclude that, in old stars, this legacy has been depleted. This difficult problem is areal challenge, an has been the motivation for many different works. The analysis of the lithium behavior in well known stars, of all kind of ages, metallicities, structures, peculiarities etc. is therefore extremely useful in order to understand the physicalprocesse at work for lithium depletion, and the reader will find here many up-to-date data. The analysis of lithium in interstellar material provides an essential information. Many works about lithium are in progress throughout the world on the different points of interest, so that the General Assembly of the IAU was an excellent occasion to have a review of the recent progresses made in different areas. A summary of (nearly) each communication made during the Joint Discussion 11 may be found hereafter. Longer summaries of the talks, and summaries of the posters will be published in a forthcoming volume of the Memorie of the Società Astronomica Italiana.

Bastina ◽  
2020 ◽  
pp. 95-109
Author(s):  
Đurđina Isić

The paper presents the results of research that included comparative study of the place and role of female characters in selected and representative comedies by Serbian comedigrapher Branislav Nušić (eng. MP, Suspicious person, Mrs Minister, Bereaved family, Dr, Deceased; srb. Narodni poslanik, Sumnjivo lice, Ožalošćena porodica, Dr, Pokojnik, Vlast) and Bulgarian comedigrapher Stefan Kostov (eng. Gold mine, Golemanov, Grasshoppers, Nameless comedy; blg. Zlamnama mina, Golemanov, Skakalci, Komediâ bez ime) in order to find similarities and differences in the process of comedigraphic shaping of female characters in the work of these two authors. The subject of the research was viewed primarily from a literary-theoretical point of view, and the dominant methods of study were comparative and analytical-synthetic. During the research, there was a differentiation of female characters in accordance with their motivational structures, psychological assemblies and the nature of the place and the role they play in the social environment in which they are located. Therefore, we can distinguish female characters who live in the province and who are fully representative of the small-town spirit, female characters who live in the capital and are a symbol of the modern age and female characters who dwell in the capital, but in fact, deeply down still carry a small-town view of the world. The structure of this paper is in line with this distinction. Conclusions made at the end of the study show that the representation of female characters in analyzed comedies of both comedigaphers is highly similar in its nature.


Author(s):  
Kang Sok CHO

This paper deals with three different perspectives appeared in foreign visitors’ records on Korea in 1900s. Jack London was a writer who wrote novels highly critical of American society based on progressivism. However, when his progressive perspective was adopted to report the political situation of Korea in 1904, he revealed a typical perspective of orientalism. He regarded Korea and ways of living in Korea as disgusting and ‘uncivilized.’Compared with Jack London’s perspective, French poet Georges Ducrocq’s book was rather favorable. He visited Korea in 1901 and he showed affectionate attitude toward Korea and its people. However, his travel report, Pauvre et Douce Coree, can be defined as representing aesthetic orientalism. He tried to make all the ‘Korean things’ seem beautiful and nice, but it is true that this kind of view can also conceal something concrete and specific. This perspective at once beautifies Korea and also conceals the reality about Korea.E. Burton Holmes was a traveler and he often used his ‘motion-picture’ machine to record things he witnessed while travelling around worldwide countries. So, his report (travelogue) and motion picture film on Korea written and made in 1901 was based on close observation and rather objective point of view. Nonetheless, he couldn’t avoid the perspective of the colonizer’s model of the world, in other words, geographical diffusionism of western culture.


1960 ◽  
Vol 29 (4) ◽  
pp. 424-439 ◽  
Author(s):  
George L. Mosse

The relationship between Christianity and the Enlightenment presents a subtle and difficult problem. No historian has as yet fully answered the important question of how the world view of the eighteenth century is related to that of traditional Christianity. It is certain, however, that the deism of that century rejected traditional Christianity as superstitious and denied Christianity a monopoly upon religious truth. The many formal parallels which can be drawn between Enlightenment and Christianity cannot obscure this fact. From the point of view of historical Christianity, both Protestant and Catholic, the faith of the Enlightenment was blasphemy. It did away with a personal God, it admitted no supernatural above the natural, it denied the relevance of Christ's redemptive task in this world. This essay attempts to discover whether traditional Christian thought itself did not make a contribution to the Enlightenment.


2020 ◽  
Vol 4 (1) ◽  
pp. 81-90
Author(s):  
Fakharud Din ◽  
Muhammad Imran

It is only the comprehension of Islamic in the legislation in the world that it encompasses the change, evolution or developments being made in different areas of life to accommodate the changes   inegislation or to address the changes, Islamic jurists laid down different principles of fiqah.one of these principle is sad u-zaraey which is known as the “prohibition of evasive legal devices”. As difference in opinion is also existing in all the areas of life, similarly difference of opinions is existing among the Islamic jurists in describing this principle as well. One of the jurists who are possessing the counter narrative of sad u-zaraey is ibn e hazam. In this article research has been made in order to elaborate the ibn e hazam,s point of view about sadd u zaraey and also the vice versa opinion of other jusrists. It is also discussed with example that how the principle of sad u-zaraey is important in Islamic legislation.


1948 ◽  
Vol 42 (1) ◽  
pp. 1-19 ◽  
Author(s):  
Manley O. Hudson

If the twenty-sixth year of the World Court has not been one of intense activity, it has been marked by events of some significance for the future. The single session held by the Court during the year was devoted to administrative questions, largely to those growing out of the reorganization of the previous year. One proceeding was instituted before the Court, the first since its reorganization, and the Court was seized of one request for an advisory opinion emanating from the General Assembly. Some progresswas made in the extension of the Court’s jurisdiction, and a series of resolutions concerning the Court was adopted by the General Assembly on November 14, 1947.


2021 ◽  
Vol 21 (03) ◽  
pp. 2150015
Author(s):  
H. BENNACEUR ◽  
S. RAMTANI ◽  
T. OUTTAS ◽  
T. BOUKHAROUBA

It is well argued that stability-initiated failure dominates, especially in older bone, because of the instability of single trabeculae which is prone to inelastic buckling at stresses far less than expected for strength-based failure. It is also well known that when several horizontal struts have disappeared, trabecula fails due to compression-buckling load. In this contribution, our main goal is to improve, from theoretical point of view, the mechanistic understanding of bone buckling failure which is known to be at the core of important clinical problems. For that and with respect to previous works, an attempt is made in order to establish a simplified adaptive-beam buckling model, formulated within the context of the nonlocal adaptive continuum mechanics, from which numerical computations were performed in order to get a better knowledge about bone-column buckling mechanism affected by both bone density and bone density gradient distributions restricted to Euler–Bernoulli beam theory. An attempt is made to compare the experimental data with the response of our simplified model. For that, controlled buckling tests of single trabeculae were carried out from three medial tibia end sections (knee joint).


2019 ◽  
Vol 92 ◽  
pp. 02009
Author(s):  
Elena Peri ◽  
Lars Bo Ibsen ◽  
Benjaminn Nordahl Nielsen

In the past decades an extensive work was done in order to improve the performance and increase the reliability of triaxial testing. Among the several changes made in order to solve the inaccuracies of the traditional test configuration, two of them are discussed in this paper: the sample slenderness [in other words, the H/D ratio] and the introduction of smooth end platens instead of the rough ones. By using H/D=1 and not the usual H/D=2 ratio, the formation of a single line-rapture and the bulge shape seem prevented. The smooth ends decrease the restrain at the top and bottom of the sample. From a theoretical point of view the effects of these changes are clear, but experimentally, the results coming from various studies are contradictory. The purpose of this paper is to elucidate the previous findings on the topic, including both laboratory and FEM modelling test programs.


Computers ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 11
Author(s):  
Lorenzo Vaccaro ◽  
Giuseppe Sansonetti ◽  
Alessandro Micarelli

In recent years, Automated Machine Learning (AutoML) has become increasingly important in Computer Science due to the valuable potential it offers. This is testified by the high number of works published in the academic field and the significant efforts made in the industrial sector. However, some problems still need to be resolved. In this paper, we review some Machine Learning (ML) models and methods proposed in the literature to analyze their strengths and weaknesses. Then, we propose their use—alone or in combination with other approaches—to provide possible valid AutoML solutions. We analyze those solutions from a theoretical point of view and evaluate them empirically on three Atari games from the Arcade Learning Environment. Our goal is to identify what, we believe, could be some promising ways to create truly effective AutoML frameworks, therefore able to replace the human expert as much as possible, thereby making easier the process of applying ML approaches to typical problems of specific domains. We hope that the findings of our study will provide useful insights for future research work in AutoML.


Sociologija ◽  
2009 ◽  
Vol 51 (4) ◽  
pp. 365-384
Author(s):  
Srdjan Prodanovic

In this paper attempt will be made in explaining some basic notions of Simmel's sociology, especially those regarding his very complex comprehension of money and causality in history. In analysis of his work, I will argue that Simmel stands very close to the contemporary structurational point of view, and that there are three levels of freedom and structural givens (overlapping each other) in society. These are: meta-theoretical level, level of integration into the World, and the historical level. Besides that, less explicit aims of this paper are to show that in Simmlel's thought there are no disciplinary borders between sociology and philosophy, as well as to depict some of the potential benefits that sociology might get from this line of reasoning.


1992 ◽  
Vol 43 ◽  
pp. 39-54 ◽  
Author(s):  
Wietske Vonk

When readers understand a text they construct a mental representation of the text. This text representation contains not only the information that is explicitly expressed in the text, but also information that is inferred by the readers during reading. A text representation can be described in terms of relations between the elements in the representation, but also in terms of relations of the representation with (a model of) the world. For example, readers can determine whether a particular sentence is logically consistent with the text, as well as whether it is true or false, whether it is plausible or possible, or whether it is completely new for her or him. The distinction between relations within the structure of the text representation and relations that refer to the world has hardly ever been made in empirical research on inferences. In general inferences have been investigated from the point of view of their contribution to the coherence of the representation. The consequence is that the question whether inferences are made during reading has generally been answered in terms of the internal coherence of the representation: Inferences that contribute to the coherence of the representation are made during reading, other inferences are not. The central question in the present research is to what extent inference processes are determined by the relations of the inferences with a model of the world and, accordingly, to what extent inference processes are determined by the reader's knowledge of the world. Experiments are discussed on inferences that contribute to the coherence of the representation and, accordingly, are supposed to be made during reading. In this research the knowledge of the reader with respect to the topic of the text was varied by having expert economists and non-experts reading texts on economics. The results indicate that the prevalent conclusion with respect to inferences is an overgeneralisation. It was demonstrated that inference processes are controlled by the reader's knowledge.


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