scholarly journals IL 50° ANNIVERSARIO DEL NOBEL A GIULIO NATTA

2016 ◽  
Author(s):  
Italo Pasquon
Keyword(s):  
Economic Value ◽  
Nobel Laureate ◽  
Point Of View ◽  
Industrial Chemistry ◽  
Natural Polymers ◽  
Scientific Publications ◽  
Macromolecular Chemistry ◽  
Worldwide Production ◽  
The World ◽  
Stereospecific Polymerization

On March 11, 1954 Giulio Natta synthetized isotactic polypropylene. It was the first synthesis, in laboratory, of a polymer having a sterically ordered structure, similar to those found in some natural polymers like, for instance, natural rubber and cellulose. This meaningful aspect was emphasized by Prof. Fredga of the Swedish Academy in his speech at the customary ceremony of Nobel Prize on December 10, 1963, when he stated “Natta has broken the monopoly of nature”. With the polypropylene synthesis Natta discovered the “stereospecific polymerization” defined by Toblosky (Princeton University) and by Flory, one of the most eminent scientist in the macromolecular chemistry and future Nobel laureate in Chemistry (1974), a “revolution” in the macromolecular field. Natta was recognized as the “father” of stereospecific polymerization. The Journal of Polymer Science, vol. 51 (1961), dedicated to Natta, reports “Seldom a scientific contribution aroused such a deep and fundamental interest and was followed by such a rapid technical development as the series of publications by Professor Natta and his coworkers on the stereospecific polymerization. Yet Professor Natta has succeeded in maintaining undisputed leadership in this field of polymer chemistry and continues to surprise his colleagues with new and unexpected results”. The revolution brought by Natta in the field of macromolecular chemistry involved the entire scientific and industrial world specialized in that area. Soon after 1954-55 a lot of universities and industrial laboratories around the world started to work on activities concerning the novel stereospecific polymerization. The results of these studies are reported in about a thousand scientific publications and some hundreds of patents issued from the Milan Polytechnic Institute of Industrial Chemistry between 1955 and 1977 (concentrated in 1955-57). The importance of polypropylene from the commercial point of view is evident from the fact that the world production of various types of polypropylene now stands at about 60 million tons/year. It is estimated that the related global economic value approaches the second place over all synthetic products, after polyethylene, together with ammonia, and before other products such as urea, polymers of styrene and vinyl chloride, nylons, etc. For their part 1,4-cis polybutadiene and copolymers based on ethylene and propylene occupy respectively the second and the third place in terms of worldwide production and market value among synthetic elastomers, after styrene-butadiene rubbers (SBR). More information concerning the personality and the scientific and didactic activities of Giulio Natta and his relations with the scientific and industrial world are reported on the internet site www.giulionatta.it containing the “Giulio Natta Archive” (more than 40.000 pages).

From Stereospecific Polymerization to Asymmetric Autocatalytic Synthesis of Macromolecules

1965 ◽  
Vol 38 (1) ◽  
pp. 37-60 ◽  
Author(s):  
Giulio Natta
Keyword(s):  
Heterogeneous Catalysts ◽  
Regular Structure ◽  
Scientific Basis ◽  
Point Of View ◽  
Crystalline Polymers ◽  
Molecular Weights ◽  
Macromolecular Chemistry ◽  
Stereospecific Polymerization ◽  
Synthetic Macromolecules ◽  
Very High

Abstract Macromolecular chemistry is a relatively young science. Though natural and synthetic macromolecular substances had long been known, it was only between 1920 and 1930 that Hermann Staudinger placed our knowledge of the chemical structure of several macromolecular substances on a scientific basis. In the wake of Staudinger's discoveries and hypotheses, macromolecular chemistry has made considerable progress. Very many synthetic macromolecular substances were prepared both by polymerization and by polycondensation; methods were found for the regulation of the value and distribution of molecular weights; attempts were made to clarify the relationships existing among structure, chemical regularity, molecular weight, and physical and technological properties of the macromolecular substances. It was far more difficult to obtain synthetic macromolecules having a regular structure both from the chemical and steric point of view. An early result in this field, which aroused a certain interest in relation to elastomers, was the preparation of a polybutadiene having a very high content of trans-1,4 monomeric units, in the presence of heterogeneous catalysts. A wider development of this field was made possible by the recent discovery of stereospecific polymerization. This led to the synthesis of sterically regular polymers as well as to that of new classes of crystalline polymers.

scholarly journals Knowledge society in 21st century

2012 ◽  
Vol 60 (2) ◽  
pp. 533-538
Author(s):  
Martina Urbanová ◽  
Jana Dundelová ◽  
Blahoslav Rozbořil
Keyword(s):  
Social Sciences ◽  
Critical Thinking ◽  
Knowledge Society ◽  
Economic Value ◽  
Point Of View ◽  
Ethical Behaviour ◽  
Contemporary World ◽  
The Core ◽  
The World

This paper is focused on the increasing need of education in 21st century and on some problems which emerged in this context – the economists prefer to emphasize the development and growth, profit and effectiveness, and they can overlook general, ethical, and essential problems and needs of the contemporary world. These problems are not resolved by simple algometrical approaches, but they require multi-disciplined paradigms, which can provide social sciences.Especially in the 21st century we need wide-ranging critical thinking as a basis of responsible ethical behaviour. However in the current educational environment in the tertiary educational system we can observe over-emphasizing of utilitarian requirements. We produce professionals who are expected to be able to find quick, effective but also far-seeing solutions of any given problem, which is in obvious contradiction. This article discussed three conceptions of a human with the emphasis on the concept of “homo socio-oeconomicus”. This concept enables to see the world in wide context and develops necessary critical thinking, which is also economically more advantageous from the long-term point of view. That is why education in sociological, psychological, philosophical, political and other social sciences should not be considered by economists as something useless without any economic value, but as something that can help them to understand themselves, their environment and the consequences of their decisions. This is the core of this contribution.

scholarly journals Training of masters-geographers in the system of network interaction of pedagogical universities

2021 ◽  
pp. 50-62
Author(s):  
Alexander Ivanovich Shadrin ◽  
◽  
Lyubov Yurievna Larionova ◽  
Natalia Vladimirovna Ionova ◽  
◽  
...  
Keyword(s):  
Personal Development ◽  
Professional Growth ◽  
Point Of View ◽  
Individual Choice ◽  
Master's Programs ◽  
Scientific Publications ◽  
Geographical Education ◽  
The World ◽  
The Individual ◽  
Network Form

The key goal of modern geographical education is the process of forming a holistic worldview based on the general picture of the world and, in particular, the formation of geographical thinking based on a systematic approach. This ensures the socialization of the individual, capable of independently building a trajectory of professional growth and personal development, subject to mastering both universal and professional competencies. The most effective form of education in the formation of a holistic picture of the world, from the point of view of the authors, is the network form, which is provided for by the law “On Education in the Russian Federation” (article 15). It is the network form of implementation of educational programs, including master′s, that provides an individual choice of educational trajectories of learning. The article outlines the problem of choosing an approach to assessing the effectiveness of master’s programs. The analysis of the experience in the formation of competencies for different levels of education, presented in scientific publications, confirmed the insufficient degree of knowledge of the process of the formation and development of the competencies of master geographers. The article describes the approaches to the content of the variable part of the network master′s program for the training of teachers of geography.

Medical Diagnosis from a Clinician’s Point of View

1978 ◽  
Vol 17 (01) ◽  
pp. 28-35
Author(s):  
F. T. De Dombal
Keyword(s):  
Decision Making ◽  
Data Analysis ◽  
Computer Science ◽  
Medical Diagnosis ◽  
Information Science ◽  
Point Of View ◽  
Joint Research ◽  
The World

This paper discusses medical diagnosis from the clinicians point of view. The aim of the paper is to identify areas where computer science and information science may be of help to the practising clinician. Collection of data, analysis, and decision-making are discussed in turn. Finally, some specific recommendations are made for further joint research on the basis of experience around the world to date.

Russia and China: The Vector of Development of Economic Cooperation

2004 ◽  
pp. 113-122
Author(s):  
L. Kabir
Keyword(s):  
World Economy ◽  
Economic Cooperation ◽  
Point Of View ◽  
Basic Commodity ◽  
The World ◽  
Economic Ties

This article considers the basic tendencies of development of trade and economic cooperation of the two countries with accent on increasing volumes and consolidating trade and economic ties in Russian-Chinese relations. The author compares Russian and Chinese participation in the world economy and analyzes the counter trade from the point of view of basic commodity groups.

THE GENESIS OF CONSERVATIVE IDEOLOGY, DEVELOPMENT TRENDS AND PROSPECTS IN THE POLITICAL REFORM OF MODERN COUNTRIES (ON THE EXAMPLE OF RUSSIA AND FRANCE)

2020 ◽  
Vol 10 (4) ◽  
pp. 38-43
Author(s):  
MARIETA EPREMYAN ◽  
Keyword(s):  
Political Reform ◽  
Point Of View ◽  
The Political ◽  
Development Trends ◽  
Conservative Ideology ◽  
The World ◽  
Christian Conservatism ◽  
The Future ◽  
Conservative Policy ◽  
Depth Interviews

The article examines the epistemological roots of conservative ideology, development trends and further prospects in political reform not only in modern Russia, but also in other countries. The author focuses on the “world” and Russian conservatism. In the course of the study, the author illustrates what opportunities and limitations a conservative ideology can have in political reform not only in modern Russia, but also in the world. In conclusion, it is concluded that the prospect of a conservative trend in the world is wide enough. To avoid immigration and to control the development of technology in society, it is necessary to adhere to a conservative policy. Conservatism is a consolidating ideology. It is no coincidence that the author cites as an example the understanding of conservative ideology by the French due to the fact that Russia has its own vision of the ideology of conservatism. If we say that conservatism seeks to preserve something and respects tradition, we must bear in mind that traditions in different societies, which form some kind of moral imperatives, cannot be a single phenomenon due to different historical destinies and differing religious views. Considered from the point of view of religion, Muslim and Christian conservatism will be somewhat confrontational on some issues. The purpose of the work was to consider issues related to the role, evolution and prospects of conservative ideology in the political reform of modern countries. The author focuses on Russia and France. To achieve this goal, the method of in-depth interviews with experts on how they understand conservatism was chosen. Already today, conservatism is quite diverse. It is quite possible that in the future it will transform even more and acquire new reflections.

Social Justice and Critical/Performative Communicative Pedagogy

2011 ◽  
Vol 4 (1) ◽  
pp. 21-34 ◽  
Author(s):  
John T. Warren
Keyword(s):  
Qualitative Research ◽  
Social Justice ◽  
Classroom Interactions ◽  
Point Of View ◽  
Constitutive Relationship ◽  
Just World ◽  
The World ◽  
Analytical Point ◽  
Embodied Pedagogy

Through narratives and critical interrogations of classroom interactions, I sketch an argument for a co-constitutive relationship between qualitative research and pedagogy that imagines a more reflexive and socially just world. Through story, one comes to see an interplay between one's own experiences, one's own desires and one's community — I seek to focus that potential into an embodied pedagogy that highlights power and, as a result, holds all of us accountable for our own situated-ness in systems of power in ways that grant us potential places from which to enact change. Key in this discussion is a careful analytical point of view for seeing the world and a set of practices that work to imagine new ways of talking back.

LINGUACULTURAL ASPECT OF TEMPORAL NOMINATIONS

2020 ◽  
Vol 2020 (30) ◽  
pp. 200-213
Author(s):  
Anna Shapoval
Keyword(s):  
Sixteenth Century ◽  
Ottoman Empire ◽  
Experimental Analysis ◽  
Information Resource ◽  
Basic System ◽  
Scientific Publications ◽  
Lunar Calendar ◽  
Temporal System ◽  
The World ◽  
To Come

Analysis of linguocultural aspect of temporal nominations is impossible without involving the problems of hrononymic lexics. Chrononyms is an important information resource of a certain linguaculture, some distinctive peculiarities of conceptual picture of the world. The aim of the experimental analysis is a complex examination of the linguacultural aspect of temporal nominations that function in Chinese and Turkish languages reflecting the concepts of the world. The research was based on the material of the novels “Imperial woman” by Pearl Buck and “Roxolana” by Pavlo Zagrebelniy. The analysis of recent scientific publications allowed us to come to the conclusion that the investigation of hrononymic lexics can involve different theoretical and practical principles. Being guided by the existing classifications of chrononyms (N. Podolskaya, M. Torchinsky, S. Remmer) the linguocultural features of the following types of temporal chrononymic lexical units were identified and studied in the research: georthonyms, dynastic chrononyms, tumultonyms, parsonyms and mensonyms. The results of the research demonstrate that not all lexical units of temporal denotation chosen from the above mentioned novels refer to the class of chrononyms. The group under investigation includes the following lexemes: nominations of the lunar calendar, nominations of the solar calendar, nominations of mixed calendar and temporal slots denoting day and night. The basic system of chronology in the linguiacultures under analysis is the dominance of the lunar calendar nominations (Chinese picture of the world — 51,0 %, Turkish — 40,4 %). In the analyzed works the nominations of the solar calendar are used less often in the Chinese picture of the world; the usage of this unit reaches 20 %, and this phenomenon is historically conditioned. Mixed calendar nominations (21 % of temporal units) are rather common, solar calendar nominations are refined by the monthly calendar; it can be explained by the fact that the Chinese mind is conservative towards the new temporal system. In the Turkish picture of the world 45 % of temporal vocabulary belongs to the solar calendar since in the sixteenth century only a lunar calendar operated in the Ottoman Empire. It should be mentioned that significant place in the temporal vocabulary of “Roxolana” is conditioned by the influence of the linguistic personality of the author, who was a Ukrainian.

History of Tour de France from the Geographical Point of View

2013 ◽  
Vol 22 (3-4) ◽  
pp. 255-277 ◽  
Author(s):  
Vladimír Bačík ◽  
Michal Klobučník
Keyword(s):  
Point Of View ◽  
The Past ◽  
Advanced Technologies ◽  
The World ◽  
Spatial Dimensions ◽  
Tour De France ◽  
Wide Circle ◽  
History Of ◽  
Expert Community ◽  
Geographical Point

Abstract The Tour de France, a three week bicycle race has a unique place in the world of sports. The 100th edition of the event took place in 2013. In the past of 110 years of its history, people noticed unique stories and duels in particular periods, celebrities that became legends that the world of sports will never forget. Also many places where the races unfolded made history in the Tour de France. In this article we tried to point out the spatial context of this event using advanced technologies for distribution of historical facts over the Internet. The Introduction briefly displays the attendance of a particular stage based on a regional point of view. The main topic deals with selected historical aspects of difficult ascents which every year decide the winner of Tour de France, and also attract fans from all over the world. In the final stage of the research, the distribution of results on the website available to a wide circle of fans of this sports event played a very significant part (www.tdfrance.eu). Using advanced methods and procedures we have tried to capture the historical and spatial dimensions of Tour de France in its general form and thus offering a new view of this unique sports event not only to the expert community, but for the general public as well.

THE LAPBOOK AS A DIDACTIC TOOL TO IMPLEMENT INTEGRATED TRAINING IN NATURAL SCIENCE AND TECHNOLOGY AND ENTREPRENEURSHIP AT PRIMARY SCHOOL LEVEL

2018 ◽  
Vol 28 (3) ◽  
pp. 959-963 ◽  
Author(s):  
Yordanka Peycheva ◽  
Snezhana Lazarova
Keyword(s):  
Natural Science ◽  
Lessons Learned ◽  
Point Of View ◽  
School Level ◽  
Integrative Approach ◽  
Educational Goals ◽  
Knowledge And Skills ◽  
Global Issues ◽  
Highly Active ◽  
The World

The formation of comprehensive and in-depth notions of objects and phenomena in the world can be achieved when the mastery of knowledge and skills is carried out in a system realized in the context of integration of different scientific directions. One of the main issues in modern education is related to the contradiction - on one hand between the need to form the skills necessary for the orientation and adaptation of the personality in the dynamics of the globalizing world and on the other - the education which is largely based on unilateral acquiring of knowledge and skills within the different subject areas. This influences the development of a worldview and the formation of an adequate attitude towards the problems under consideration and the world as a whole. The knowledge and skills acquired today are often “locked” in the respective direction. The cross-curricular unity in the curriculum is of a recommended nature, but even if it is realized, it does not fully meet the need for a comprehensive and multifaceted consideration of global issues, as a result of which the student not only understands, reflects, but also applies the lessons learned in the process of creating a product - ideal or material. Combining the intellectual nature of the cognitive process with the practice activity are conditions in which the students are highly active and achieve better learning outcomes. Therefore, it is expedient for the different directions to correspond more closely to each other and to carry out effective cross-curricular integration. The concept of applying an integrative approach in the current paper is based on the idea of creating pedagogical conditions for reconciling the goals and expected outcomes of technology and entrepreneurship and natural sciences studied at the initial stage of the primary education. Integration can take place on two levels - knowledge and skills. We believe that the lapbook as an innovative didactic tool contains the necessary potential for effective realization of the educational goals in both directions in terms of achieving the expected results. In the course of its elaboration, new information is acquired in the field of engineering and technology, specific skills underlying the curricula of technology and entrepreneurship programs are developed. At the same time, a number of subjects from the learning content, which are considered from the natural science point of view, are enriched and perceived in a technological way, after which they find place in an attractive book - a lapbook, made by the students themselves. Its utilitarian value is multiplied by the personal contribution to its creation - not only as an object but also as content. The main topics that are of interest to the students are exploring and preserving nature, jobs, modern technical achievements, holidays and customs. As a result of the adequate integration of competences, tailored to curricula, a number of skills are formed, such as: skills for searching on their own, systematization and presentation of information, and application of the lessons learned in a new situation.

Sign in / Sign up

Export Citation Format

Share Document