The Nonlinear History of Fibre Flow Research. Part 1: Background and Beginning

2008 ◽  
Vol 18 (2) ◽  
pp. 23974-1-23974-11
Author(s):  
Ulf Björkman
Keyword(s):  
20Th Century ◽  
Future Development ◽  
Subsequent Development ◽  
Formative Period ◽  
Alternative Approach ◽  
History Of ◽  
Historic Development ◽  
Individual Fibre ◽  
The 19Th Century ◽  
Technical Fibre

Abstract Technical fibre flows are normally flocky, but have theoretically mainly been treated as individual fibre flows. The reason for this can only be understood in the context of historic development. In Part 1 of this historic investigation the roots of fibre flow research are traced to the beginning of the 19th century. The subsequent development is followed through its formative period in the first half of the 20th century up to about WW2. Part 2 will continue up to about 1960s when the present main tradition had been well established. In Part 2, an example of an alternative approach will also be given, and some proposals for future development presented.

The Nonlinear History of Fibre Flow Research. Part 2: Continuation, Reflections and Suggestions

2008 ◽  
Vol 18 (3) ◽  
pp. 34694-1-34694-26
Author(s):  
Ulf Björkman
Keyword(s):  
Theoretical Research ◽  
Alternative Approach ◽  
Fibre Suspensions ◽  
History Of ◽  
Historic Development ◽  
Individual Fibre ◽  
The 1960S ◽  
The 19Th Century ◽  
Future Work ◽  
Technical Fibre

Abstract Technical fibre flows are normally flocky but have theoretically mainly been treated as individual fibre flows. The reason for this can only be understood through the subject’s historic development. In Part 1 of this investigation the origin of fibre flow research was traced to the beginning of the 19th century, and was followed through its formative years at the first half of the 20th century up to about WWII. This second and final part takes us up to about the 1960s when the present main theoretical research tradition had been firmly established. An example of an alternative approach is given. Finally, some suggestions for future work are advanced. In Appendix methods of characterising the inner geometry of technical fibre suspensions are discussed

scholarly journals History of education in Switzerland – historic development and current challenges

2014 ◽  
Vol 15 ◽  
pp. 223-237
Author(s):  
Michèle Hofmann
Keyword(s):  
Teacher Education ◽  
20Th Century ◽  
History Of Education ◽  
History Of ◽  
Historic Development ◽  
19Th And 20Th Century ◽  
And Function ◽  
The 19Th Century ◽  
Further Development ◽  
Role And Function

As in other countries, history of education in Switzerland is faced with a number of challenges (e.g. job cuts, questioning of the discipline’s role and function). This paper argues that the disci-pline’s current situation can only be adequately understood in light of its eventful history. In a first step this paper therefore deals with the historic development of the history of education in Switzerland. Particular focus is placed on the establishment of the history of education as a part of pedagogy at the institutions of teacher education during the first half of the 19th century and the discipline’s further development over the course of the late 19th and 20th century. In a se-cond step, this paper discusses the consequences for the discipline’s present and future that arise from its specific, historically evolved situation. DOI: http://dx.doi.org/10.15572/ENCO2014.12

Historian of the Russian State Library. In Memory of L.M. Koval (1933—2020)

2020 ◽  
Vol 69 (2) ◽  
pp. 167-172
Author(s):  
Margarita Y. Dvorkina
Keyword(s):  
20Th Century ◽  
Foreign Languages ◽  
Library History ◽  
Russian State ◽  
Great Patriotic War ◽  
History Of ◽  
Publishing Houses ◽  
October 17 ◽  
State Library ◽  
The 19Th Century

The article is devoted to the memory of Lyudmila Mikhailovna Koval (October 17, 1933 – February 15, 2020), historian, Head of the History sector of the Russian State Library (RSL) and the Museum of Library history. The author presents brief biographical information about L.M. Koval, the author of more than 350 scientific and popular scientific works in Russian and in 9 foreign languages. She published 29 books in Publishing houses “Nauka”, “Kniga”, “Letniy Sad”, ”Pashkov Dom”, most of the works are dedicated to the Library. Special place in the work of L.M. Koval is given to the Great Patriotic War theme. The article considers the works devoted to the activities of Library staff during the War period. L.M. Koval paid much attention to the study of activities of the Library’s Directors. She prepared books and articles about the Directors of the Moscow Public and Rumyantsev Museums and Library from the end of the 19th century and almost to the end of the 20th century: N.V. Isakov, D.S. Levshin, V.A. Dashkov, M.A. Venevitinov, I.V. Tsvetaev, V.D. Golitsyn, A.K. Vinogradov, V.I. Nevsky, N.M. Sikorsky. The author notes contribution of L.M. Koval to the study of the Library’s history. Specialists in the history of librarianship widely use bibliography of L.M. Koval in their research. The list of sources contains the main works of L.M. Koval, and the Appendix includes reviews of publications by L.M. Koval and the works about her.

A Brief History of Psoriasis Management in Canada

2020 ◽  
Vol 24 (3) ◽  
pp. 273-277
Author(s):  
Khalad Maliyar ◽  
Patrick Fleming ◽  
Boluwaji Ogunyemi ◽  
Charles Lynde
Keyword(s):  
20Th Century ◽  
Coal Tar ◽  
Historical Review ◽  
Chronic Inflammatory Disease ◽  
Biologic Therapies ◽  
First Line ◽  
Revolutionary Change ◽  
Clinical Presentations ◽  
History Of ◽  
The 19Th Century

Psoriasis is a chronic, inflammatory disease with a varying degree of clinical presentations. Managing psoriasis has always been arduous due to its chronicity and its propensity to relapse. Prior to the development of targeted biologic therapies, there were few effective treatments for psoriasis. Ancient psoriasis therapies included pinetar, plant extracts, psychotherapy, arsenic, and ammoniated mercury. In the 19th century, chrysarobin was developed. Then, in the early half of the 20th century, anthralin and coal tar were in widespread use. In the latter half of the 20th century, treatments were limited to topical first-line therapies, systemic drugs, and phototherapy. However, as the treatment of psoriasis has undergone a revolutionary change with the development of novel biologic therapies, patients with moderate to severe psoriasis have been able to avail therapies with high efficacy and durability along with an acceptable safety profile. This article is a brief historical review of the management of psoriasis prior to the inception of biologics and with the development of novel biologic therapies.

The Ismaili Tradition in Iran: 13th Century to the Present

2021 ◽  
Author(s):  
Daniel Beben
Keyword(s):  
20Th Century ◽  
Future Research ◽  
Early 20Th Century ◽  
13Th Century ◽  
Complete Understanding ◽  
Northern Iran ◽  
Minority Community ◽  
History Of ◽  
The 19Th Century ◽  
To Receive

The Ismailis are a minority community of Shiʿi Muslims that first emerged in the 8th century. Iran has hosted one of the largest Ismaili communities since the earliest years of the movement and from 1095 to 1841 it served as the home of the Nizārī Ismaili imams. In 1256 the Ismaili headquarters at the fortress of Alamūt in northern Iran was captured by the Mongols and the Imam Rukn al-Dīn Khūrshāh was arrested and executed, opening a perilous new chapter in the history of the Ismailis in Iran. Generations of observers believed that the Ismailis had perished entirely in the course of the Mongol conquests. Beginning in the 19th century, research on the Ismailis began to slowly reveal the myriad ways in which they survived and even flourished in Iran and elsewhere into the post-Mongol era. However, scholarship on the Iranian Ismailis down to the early 20th century remained almost entirely dependent on non-Ismaili sources that were generally quite hostile toward their subject. The discovery of many previously unknown Ismaili texts beginning in the early 20th century offered prospects for a richer and more complete understanding of the tradition’s historical development. Yet despite this, the Ismaili tradition in the post-Mongol era continues to receive only a fraction of the scholarly attention given to earlier periods, and a number of sources produced by Ismaili communities in this period remain unexplored, offering valuable opportunities for future research.

Epidemics and History: Multiple Approaches to the Subject

2021 ◽  
pp. 5
Author(s):  
Dmitriy Mikhel
Keyword(s):  
20Th Century ◽  
Great Influence ◽  
Medical Knowledge ◽  
Public Attention ◽  
Medical Texts ◽  
Quarter Century ◽  
History Of ◽  
The Media ◽  
New Generation ◽  
The 19Th Century

The problems of epidemics have increasingly attracted the attention of researchers in recent years. The history of epidemics has its own historiography, which dates to the physician Hippocrates and the historian Thucydides. Up to the 19th century, historians followed their ideas, but due to the progress in medical knowledge that began at that time, they almost lost interest in the problems of epidemics. In the early 20th century, due to the development of microbiology and epidemiology, a new form of the historiography of epidemics emerged: the natural history of diseases which was developed by microbiologists. At the same time, medical history was reborn, and its representatives saw their task as proving to physicians the usefulness of studying ancient medical texts. Among the representatives of the new generation of medical historians, authors who contributed to the development of the historiography of epidemics eventually emerged. By the end of the 20th century, they included many physician-enthusiasts. Since the 1970s, influenced by many factors, more and more professional historians, for whom the history of epidemics is an integral part of the history of society. The last quarter-century has also seen rapid growth in popular historiography of epidemics, made possible by the activation of various humanities researchers and journalists trying to make the history of epidemics more lively and emotional. A great influence on the spread of new approaches to the study of the history of epidemics is now being exerted by the media, focusing public attention on the new threats to human civilization in the form of modern epidemics.

scholarly journals Some notes on a historical perspective of panic disorder

2006 ◽  
Vol 55 (2) ◽  
pp. 154-160 ◽  
Author(s):  
Antonio Egidio Nardi
Keyword(s):  
Panic Disorder ◽  
20Th Century ◽  
19Th Century ◽  
Greek Mythology ◽  
Laboratory Studies ◽  
Biochemical Tests ◽  
Wide Range ◽  
Therapeutic Development ◽  
History Of ◽  
The 19Th Century

This article aims to describe important points in the history of panic disorder concept, as well as to highlight the importance of its diagnosis for clinical and research developments. Panic disorder has been described in several literary reports and folklore. One of the oldest examples lies in Greek mythology - the god Pan, responsible for the term panic. The first half of the 19th century witnessed the culmination of medical approach. During the second half of the 19th century came the psychological approach of anxiety. The 20th century associated panic disorder to hereditary, organic and psychological factors, dividing anxiety into simple and phobic anxious states. Therapeutic development was also observed in psychopharmacological and psychotherapeutic fields. Official classifications began to include panic disorder as a category since the third edition of the American Classification Manual (1980). Some biological theories dealing with etiology were widely discussed during the last decades of the 20th century. They were based on laboratory studies of physiological, cognitive and biochemical tests, as the false suffocation alarm theory and the fear network. Such theories were important in creating new diagnostic paradigms to modern psychiatry. That suggests the need to consider a wide range of historical variables to understand how particular features for panic disorder diagnosis have been developed and how treatment has emerged.

scholarly journals Scenery painting in the 19th century in the context of tempera painting on canvas: methodology and materials

2020 ◽  
pp. 1-24
Author(s):  
Sonia Santos Gómez
Keyword(s):  
Knowledge Base ◽  
20Th Century ◽  
19Th Century ◽  
Multiple Functions ◽  
History Of ◽  
Materials Used ◽  
The 19Th Century ◽  
Painting On Canvas ◽  
Modern Industry

Tempera painting on canvas has played multiple functions throughout the history of painting. They were used to cover altars in Lent, to make canopies and ceilings for beds, to act as organ doors, etc. In the 19th century and in the earlier 20th century, they were used as adornment on walls of palaces and theatres, as well as sceneries in the latter ones. Generally, this kind of tempera painting shows large proportions, which demanded a specific methodology of execution. Treatises of the epoch display how the painter, provided with paintbrushes of long handles, as brooms, walked on the canvases while the execution lasted. At that time, pigments derived from the activity of modern industry were already in use, in combination with other materials traditionally used in the previous centuries. This article presents the working methodology and materials used in tempera painting on canvas, mainly during the 19th century, providing a knowledge base for this subject.

scholarly journals Considerations to some forms of the verb a fi: sum and sunt

Diacronia ◽  
2018 ◽  
Author(s):  
Gheorghe Chivu
Keyword(s):  
20Th Century ◽  
19Th Century ◽  
18Th Century ◽  
History Of ◽  
Literary Writing ◽  
The 19Th Century

The history of the verbal forms sum and sunt, introduced into the literary writing by the Transylvanian Latinist School, reveals a winding process in the elaboration of certain cultured norms proper to the modern literary Romanian. Not at all linear, this process was concurrently influenced by two, often divergent, tendencies that were active from the end of the 18th century up to the beginning of the 20th century: the use of some cultured forms, borrowed from Latin or created according to Latin patterns; and the revitalization of certain linguistic forms with regional diffusion. Initially proposed as literary pronunciations, the two verbal forms were soon adopted and used as etymological graphic forms that corresponded to sîm and suntu from certain conservative patois. During the second half of the 19th century (sum), and during the first decades of the 20th century (sunt), the two graphic forms became orthoepic norms as well, due to the phonological tradition of the Romanian writing.

scholarly journals Research of the History of Inter-Religious Relations in Ukraine in the Kyiv Theological Academy (Second Half of the 19th – Beginning of the 20th Century)

2021 ◽  
Vol 8 ◽  
pp. 60-79
Author(s):  
Luidmila Pastushenko
Keyword(s):  
20Th Century ◽  
19Th Century ◽  
Legal Aspects ◽  
Systematic Analysis ◽  
Literary Traditions ◽  
The Social ◽  
Academic Researchers ◽  
History Of ◽  
Characteristic Features ◽  
The 19Th Century

The article presents the first attempt of a complete and systematic analysis of historic and theological publications of teachers and pupils of the Kyiv Theological Academy in the second half of the 19th – beginning of 20th century in the field of studying the history of relations of Catholicism and Protestantism with Orthodox on the Ukrainian lands. The specifics of Kyiv academic historians studies was determined by the social and-political circumstances in the middle of the 19th century and denoted by an attempt to comprehend this issue in the perspective of the history of interconfessional relations of two Western Christian traditions with the eastern tradition of Orthodoxy in the historical gap of the 16th – 17th centuries – the period of the largest confrontation in confessional relations in Ukraine. The author clarifies the characteristic features of researching the question of inter-confessional interaction in the 15th – 17th centuries, which are expressed in attempts to describe the coexistence of three denominations as multidimensional and provoking а variety of different interpretations. Historical studies present the attempt to show confessional interaction in the political and legal aspects and to provide historical interpretations to the ground of philosophy of history. The article proves the tendency of Kyiv academic researchers to move away from the established Russian historiography of the 19th century view at confessional relations in Ukraine through the prism of hard confrontation and outline in religious life Ukraine conditions and circumstances of inter-confessional dialogue. Also, historians in their studies repeatedly note the significant educational and outlook influence of Western Christian denominations on the formation of educational, cultural, theological, literary traditions in Ukraine.

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