The International Halley Watch From Australia

1984 ◽  
Vol 5 (4) ◽  
pp. 438-439
Author(s):  
M. P. Candy
Keyword(s):  
Positive Response ◽  
Origin And Evolution ◽  
Rapid Communication ◽  
Wide Range ◽  
Scientific Value ◽  
Comet Halley ◽  
Original Concept

The original concept of the International Halley Watch was presented by Louis Friedman to NASA in 1979. The intent was to maximise the scientific value of ground-based and space studies of Comet Halley. This initial suggestion met with a very positive response and has developed into a smooth organization, principally concerned with rapid communication and promoting co-operation between scientists in a wide range of disciplines. The main aim here is to put the IHW in perspective; further details of its origin and evolution can be found in Newsletter No. 1, from which the following three diagrams are taken: To quote from Newsletter No. 1 ‘The most important elements in the IHW are the Professional Observers and the Discipline Specialist Teams. Without the Observers, there can be no Halley Watch, and without the Discipline Specialists, there would be no co-ordination of observations.’ If there are any professional observers who have not yet been contacted by a Discipline Specialist it is recommended that they make their interest known immediately.

scholarly journals 2000 Fleming Lecture. The origin and evolution of hepatitis viruses in humans

2001 ◽  
Vol 82 (4) ◽  
pp. 693-712 ◽  
Author(s):  
Peter Simmonds
Keyword(s):  
Large Population ◽  
Human Populations ◽  
Hepatitis Viruses ◽  
Hepatitis G Virus ◽  
Origin And Evolution ◽  
Wide Range ◽  
Population Sizes ◽  
History Of ◽  
Virus C ◽  
Time Of Divergence

The spread and origins of hepatitis C virus (HCV) in human populations have been the subject of extensive investigations, not least because of the importance this information would provide in predicting clinical outcomes and controlling spread of HCV in the future. However, in the absence of historical and archaeological records of infection, the evolution of HCV and other human hepatitis viruses can only be inferred indirectly from their epidemiology and by genetic analysis of contemporary virus populations. Some information on the history of the latter may be obtained by dating the time of divergence of various genotypes of HCV, hepatitis B virus (HBV) and the non-pathogenic hepatitis G virus (HGV)/GB virus-C (GBV-C). However, the relatively recent times predicted for the origin of these viruses fit poorly with their epidemiological distributions and the recent evidence for species-associated variants of HBV and HGV/GBV-C in a wide range of non-human primates. The apparent conservatism of viruses over long periods implied by these latter observations may be the result of constraints on sequence change peculiar to viruses with single-stranded genomes, or with overlapping reading frames. Large population sizes and intense selection pressures that optimize fitness may be the factors that set virus evolution apart from that of their hosts.

The ‘Genius of language’

2004 ◽  
Vol 31 (2-3) ◽  
pp. 367-388 ◽  
Author(s):  
Christiane Schlaps
Keyword(s):  
19Th Century ◽  
18Th Century ◽  
17Th Century ◽  
Wide Range ◽  
Dynamic Form ◽  
Text Types ◽  
Scientific Value ◽  
The 19Th Century ◽  
Static Concept ◽  
Interior Part

Summary The so-called ‘genius of language’ may be regarded as one of the most influential, and versatile, metalinguistic metaphors used to describe vernacular languages from the 17th century onwards. Over the centuries, philosophers, grammarians, trans­lators and language critics etc. wrote of the ‘genius of language’ in a wide range of text types and with reference to various linguistic positions so that a set of rather diverse types of the concept was created. This paper traces three prominent stages in the development of the ‘genius of language’ argument and, by identifying some of the most frequent types as they evolved in the context of the various linguistic dis­courses, endeavours to show the major transformations of the concept. While early on, discussion of the stylistic and grammatical type of the ‘genius of language’ concentrates on surface features in the languages considered, during the middle of the 18th century, the ‘genius of language’ is relocated to the semantic, interior part of language. With the 19th-century notion of an organological ‘genius of language’, the former static concept is personified and recast in a dynamic form until, taken to its nationalistic extremes, the ‘genius of language’ argument finally ceases to be of any epistemological and scientific value.

scholarly journals Morphological evolution of Cuban super heavyweight boxers, 1976-2014

2021 ◽  
Vol 38 (5) ◽  
pp. 312-318
Author(s):  
Wiliam Carvajal Veitía ◽  
Sofía Alberta León Pérez ◽  
María Elena González Revuelta ◽  
Yanel Deturnel Campo
Keyword(s):  
Body Composition ◽  
Morphological Changes ◽  
Morphological Evolution ◽  
Skinfold Thickness ◽  
The Body ◽  
Morphological Attributes ◽  
International Trends ◽  
Sitting Height ◽  
Wide Range ◽  
Scientific Value

Objective: To evaluate the morphological changes of Cuban super heavyweight boxers, more and less successful, through the period 1976-2014. Material and method: Thirty super heavy boxers, who were members of the Cuban national teams in the period 1976-2014, were compared; The strategy consisted of separating the group in the periods 1976-1989, 1990-1999, 2000-2009 and 2010-2014. Sixteen anthropometric dimensions were recorded (weight, height, sitting height, six skinfold thickness, five girths and two breadths), from which the body composition and the somatotype were obtained. The data were analyzed applying the Analysis of variance (ANOVA). The conglomerate analysis based on the Euclidean distance was used in order to evaluate the correspondence between physical development and sports performance. A discriminant analysis was carried out in order to analyze the contribution of the anthropometrical variables to the variance of different clusters. Results: Most of the anthropometric dimensions and indicators showed significant differences, having an impact on the increase in adiposity, body fat and endomorphy (p <0.05), as well as the decrease in the indicators dependent on height (p <0.05). The analysis by conglomerates, as well as the study of the Migratory Distances of the somatotype, showed that the Olympic medalist boxers differed in terms of the characteristics of body composition and in terms of the intensity of the somatotype changes in the period 1976-2014. Conclusions: The Cuban boxer of the super heavyweight category showed a wide range of morphological demands, but these were framed within the international trends of professional boxers. The morphological attributes of the Olympic medalists differed from each other, and from the rest of the boxers investigated over time. These results provide anthropometric data of high scientific value, both for selection and for medical control of training.

Acute appendicitis

2018 ◽  
Author(s):  
Андрей Пугаев ◽  
Andrey Pugaev ◽  
Евгений Ачкасов ◽  
Evgeniy Achkasov
Keyword(s):  
Surgical Treatment ◽  
Acute Appendicitis ◽  
Positive Response ◽  
Positive Impact ◽  
Large City ◽  
Surgical Care ◽  
Postoperative Management ◽  
Professional Activities ◽  
Wide Range ◽  
Modern Technologies

Acute appendicitis is a disease with which the surgeon faces in providing emergency surgical care both in the most famous clinic and in the hospital far from a large city. Before acute appendicitis are equal and novice doctors, and gray-haired professors and academics. The use of modern technologies, of course, had a positive impact on the results of surgical treatment of patients with acute appendicitis. However, the problem of acute appendicitis is far from being solved. This book reflects the experience of the authors of diagnosis and treatment of patients with acute appendicitis for 40 years, which allowed to formulate General provisions of diagnostic and treatment tactics and postoperative management of patients. We hope that the book will be useful to a wide range of doctors and, of course, surgeons, especially those who are starting their professional activities. The first edition of the book in 2011 aroused a positive response and great interest among surgeons, and the published edition of the book, which seemed at first quite sufficient, was quickly exhausted. Repeated appeals to the authors to purchase this monograph were the reason for the need to prepare the second edition of the book that you hold in your hands.

scholarly journals Place of the Muscovy state in the expansion of the Europeans to the East in the XVI–XVII centuries (for the statement of the problem)

2021 ◽  
Vol 27 (4) ◽  
pp. 19-28
Author(s):  
R. S. Astashkin
Keyword(s):  
Geographical Location ◽  
Research Problem ◽  
Historical Experience ◽  
Russian Territory ◽  
Russian State ◽  
Wide Range ◽  
The Individual ◽  
Scientific Value ◽  
In Transit

The article attempts to pose the research problem of the place of the Russian state in the process of the expansion of Europeans to the East in the period of the XVIXVII centuries. The actual basis of the proposed topic consists of the numerous attempts by the representatives of the conditional West to use the specifics of the geographical location of the then Russia in order to establish and further develop the contacts with the particular Asian states. The experience of the complex, consistent and comprehensive coverage of this problem today is practically absent both in the domestic and the foreign historiography. The study of the place and role of the Muscovy empire in the process of penetration of the Western European powers, commercial and clerical corporations to the East is possible on the basis of an analysis of a wide range of written sources of Russian and foreign origins. This publication includes an approximate plan (a program) for the subsequent study of the stated issues. It seems appropriate to highlight the independent thematic aspects, among which the following should be named exclusively: the characteristics of the individual routes connecting the Russian lands with the East, the circumstances and consequences of the European travels to Asia in transit through the Russian territory, the participation of the Asian side (in particular, Persia) in the processes and events under consideration. One of the central places in the research program should be occupied by the little-studied question of the Muscovy empires own position on the problem of the European-Asian transit. In addition, the analysis of the historical experience of the intercontinental dialogue directly in the dominions of the Russian tsars is of considerable interest. The article concludes about the unconditional scientific value, prospects and novelty of the formulated problem.

Legal Framework for Industrial Hubs

2020 ◽  
pp. 966-984
Author(s):  
Won Kidane ◽  
Belachew M. Fikre
Keyword(s):  
Economic Policy ◽  
Best Practices ◽  
Parallel Systems ◽  
Legal Framework ◽  
Legal Systems ◽  
General Applicability ◽  
Origin And Evolution ◽  
Wide Range ◽  
The Law ◽  
Legal Frameworks

Industrial hubs, as instruments of economic policy, are unapologetic creations of the law. They take different forms but are essentially realized through a regime of waivers and exceptions to the rules of general applicability. The legal framework, quintessentially domestic in nature, is an embodiment of the Latin maxim lex specialis derogat legi generali. The lex specialis is ipso facto a function of each domestic system. Any exposition of the institutional and legal framework of industrial hubs is thus necessarily an appraisal of a series of parallel systems of law in varied jurisdictions representing a wide range of legal systems. The fundamental commonalities of the features of this regime of waivers and exceptions do, however, permit a systematic and unified appraisal. This chapter identifies the conceptual origin and evolution of the institutional and legal frameworks of industrial hubs, evaluates their function in a comparative context, and assesses the extent of harmonization across jurisdictions and the possible emergence of some useful transnational best practices.

Do Crypto Currencies Meet the Requirements of the Islamic Finance Industry?

2018 ◽  
Vol 2018 (3) ◽  
pp. 23-42 ◽  
Author(s):  
Magomet Yandiev ◽  
Gapur Oziev
Keyword(s):  
Positive Response ◽  
Islamic Finance ◽  
Financial Instruments ◽  
Finance Industry ◽  
Wide Range ◽  
Crypto Currency

Is it possible to use crypto-currencies? This question is actual for active users of Islamic financial instruments. This paper gives a positive response to this question, but with a wide range of refinements, significantly limiting the list of allowable operations with crypto currency.

A genetic analysis of the spring-winter habit of growth in wheat

1971 ◽  
Vol 22 (1) ◽  
pp. 21 ◽  
Author(s):  
AT Pugsley
Keyword(s):  
Genetic Analysis ◽  
Winter Wheat ◽  
Positive Response ◽  
Wheat Cultivars ◽  
Developmental Patterns ◽  
Wide Range ◽  
Winter Wheat Cultivars ◽  
Dominant Genes ◽  
Made In

Developmental patterns of growth have been studied in nine spring and 10 winter wheat cultivars and in a number of crosses involving both groups. Among the spring cultivars five responded to vernalization while four did not. There was a very wide range in responsiveness to vernalization among the winter cultivars, ranging from the responsive Winter Minflor to Jones Fife which appeared not to respond at all to the '30-day vernalization test'. The spring habit of growth was governed by three dominant genes, any one of which was able to inhibit the expression of the winter habit. Progress has been made in establishing relationships among several spring cultivars. Those carrying the gene Sk, either alone or in combination with others, appeared to be non-responsive to vernalization. In the absence of Sk all spring cultivars so far tested exhibited a positive response. Winter selections made from spring-winter crosses always resembled the winter parent with respect to the intensity of the winter characteristic. While all winter wheats carry recessive alleles at all three loci, the differences in expression which exist between them appear to have been due to the presence of multiple recessive alleles at these loci. Further evidence of the association of leaf and spikelet numbers with days to ear emergence is presented.

Early and late respiratory-related cortical potentials evoked by pressure pulse stimuli in humans

1993 ◽  
Vol 74 (4) ◽  
pp. 1484-1491 ◽  
Author(s):  
R. J. Strobel ◽  
J. A. Daubenspeck
Keyword(s):  
Tactile Stimulation ◽  
Pressure Pulse ◽  
Positive Response ◽  
Normal Subjects ◽  
Positive Component ◽  
Negative Component ◽  
Mouth Pressure ◽  
Wide Range ◽  
Rapid Changes ◽  
Stimulation Of

Although respiratory-related cortical evoked potentials (CEPs) have been obtained in humans, early-latency responses have been obtained only with direct electrical stimulation of respiratory afferents. We have recorded both early and late cortical activity in response to a relatively novel stimulus consisting of a 300-ms negative pressure pulse applied to the mouth near the start of selected inspirations, when mouth pressure attained a predetermined threshold. This stimulus caused highly reproducible and rapid changes in mouth pressure and was effective in eliciting CEPs to a wide range of applied pressures. Using pulses of approximately -2 to -25 cmH2O, we obtained an early positive component with a mean latency of approximately 20 ms and a subsequent negative component at approximately 30 ms in normal subjects. Peak-to-peak amplitude varied directly, and component latencies inversely, as a function of pulse magnitude. Using -5- to -10-cmH2O stimuli, we also measured a later positive-negative-positive response with mean component latencies of 96.7 +/- 15.1, 147 +/- 14.8, and 237.6 +/- 23.5 ms, respectively. The early-latency activity was resistant to manipulations of stimulus predictability, whereas the later waves were attenuated or disappeared when load presentation was made completely predictable. We validated our method by eliminating the possibility of tactile stimulation of the lips and teeth as the origin of the evoked responses. We propose that early-latency activity derives from precortical structures and may provide a window on the functioning of respiratory afferents in normal subjects and in patients with respiratory disease.

scholarly journals Origin and evolution of the Galactic inventories of interstellar dust and its composition

2020 ◽  
Vol 494 (3) ◽  
pp. 4149-4167
Author(s):  
Anuj Gupta ◽  
Sandeep Sahijpal
Keyword(s):  
Interstellar Dust ◽  
Galactic Centre ◽  
Dust Grains ◽  
Thermodynamical Equilibrium ◽  
Origin And Evolution ◽  
Isotopic Signatures ◽  
Interstellar Dust Grains ◽  
Wide Range ◽  
Dust Mass ◽  
The Galaxy

ABSTRACT Interstellar dust is a significant component of matter in the galaxies. The dust owns its origin and reprocessing in a wide range of astrophysical environments. In order to understand the origin and evolution of the distinct types of interstellar dust grains, we have attempted a comprehensive correlated study of the thermodynamics condensation of dust grains in distinct stellar environments with the Galactic chemical evolution of the Milky Way Galaxy. The Galaxy is evolved in terms of elemental evolution resulting from stellar nucleosynthetic contributions of several generations of stars. Based on the elemental composition of the evolving Galaxy, the relative abundances of the major constituents of interstellar dust are assessed. The major aim is to redistribute the various condensable elements at any epoch during the evolution of the Galaxy into various grain constituents and understand their abundance evolution based on a mass-balance formalism. We also performed thermodynamical equilibrium condensation calculations to understand the stellar origin of various grain constituents that could carry the isotopic signatures of the various stellar nucleosynthetic sources. This is perhaps a novel attempt to estimate the bulk dust mass budget in the evolving Galaxy. The normalized mass of the Galactic dust is predicted to decrease with the increase in distance from the Galactic centre. It increases over time. The supernovae SNe Ia are predicted as the most prominent sources of Fe-dust mass, the supernova SN II+Ib/c produces oxides- and silicate-dust mass, and the AGB stars contribute to carbonaceous dust mass.

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