scholarly journals The Inactivation of complement by Mechanical Agitation

1913 ◽  
Vol 13 (3) ◽  
pp. 291-313 ◽  
Author(s):  
Hans Schmidt

Of the many methods employed to render a serum inactive, that by means of mechanical agitation has been the subject of several recent works, but the real nature of this phenomenon, as it occurs in shaken sera, is still unknown. The reason is the uncertainty regarding the nature of complement itself, and even the most satisfying explanation of the inactivation of complement by shaking would not probably throw much light on the nature of the complement. I give in the following a brief summary of the literature dealing with the inactivation of complement by mechanical agitation.

1881 ◽  
Vol 8 (2) ◽  
pp. 65-69 ◽  
Author(s):  
B. N. Peach ◽  
J. Horne

In his valedictory address as President of the Edinburgh Geological Society, at the close of the session 1879–80, Mr. Milne Home reviewed our recent paper on “The Glaciation of the Shetland Isles.” In his address he not only called in question our conclusions regarding the direction of the glaciation of these islands, but likewise referred to the discordance between the observations of Mr. C. W. Peach and ourselves. As much of this adverse criticism is based on a misconception of the real nature of the evidence bearing on the question, we are anxious to reply to some of the points in the address which might mislead those who are unacquainted with the subject.


1845 ◽  
Vol 1 ◽  
pp. 217-217
Author(s):  
D. F. Gregory

The object of this paper is to determine in what consists the difference between general Symbolical Algebra and the sciences subordinate to it, particularly Arithmetical Algebra. The view which the author takes is, that Symbolical Algebra takes cognizance only of the laws by which the symbols are combined, without considering the nature of the operations represented. The greater part of the paper is occupied in applying this definition, by shewing what are the laws to which are subject the various symbols of operations we are in the habit of using; and one or two examples are given of the advantages derivable from this way of considering the subject—particularly with respect to the connection between the arithmetical and geometrical meanings of + and −. The chief application of the theory may be said to be the elucidation of the causes of analogies between operations by no means similar in their nature.


2015 ◽  
Vol 25 (2) ◽  
pp. 249-277 ◽  
Author(s):  
Steven Harvey

AbstractIn an article published in Arabic Sciences and Philosophy 22 (2012), pp. 217–87, by Gad Freudenthal and Mauro Zonta, “Avicenna among Medieval Jews: the reception of Avicenna's philosophical, scientific and medical writings in Jewish cultures, East and West,” the authors promise to present “a preliminary but comprehensive picture of Avicenna's reception by medieval Jewish cultures.” As such, it seemed to offer the “comprehensive study” referred to as a desideratum by Zonta at the conclusion of his groundbreaking and very important survey, “Avicenna in medieval Jewish philosophy” (2002). Zonta explained that such a future “comprehensive study of the many and different interpretations given to his doctrines by Jewish thinkers would allow us to evaluate the real role played by [Avicenna] in medieval thought.” Surprisingly, the recent article adds little that is new to the previous studies of Zonta and others on the subject, and omits useful information found in them. The main point of the present notes is to try to correct several oversimplifications, questionable assumptions, and misleading statements in the article under consideration. Its purpose is to help readers of the article to attain a fuller and more accurate – although certainly not comprehensive – picture of the reception of Avicenna among medieval Jews.


1995 ◽  
Author(s):  
◽  
J. C. Wimbush

"The nature of light is only describable by enumerating its properties and founding them on the simplest possible principles. As these principles transcend our ordinary experiences, they must be cast in a purely logical, that is to say, mathematical form. But that is never enough, for, though logic tells us what deductions must be right, it does not tell us what will be interesting, and so gives no guidance as to the direction the theory will take. In choosing this direction, much help is derived from analogies and models which are often loose and incomplete but without which no proper understanding of the subject can be acquired. We shall, therefore, describe, largely by means of analogies, the behaviour of light and this is the 'real' nature of light. "


1865 ◽  
Vol 24 (1) ◽  
pp. 139-145 ◽  
Author(s):  
Tait

It has always appeared to me that the difficulties which present themselves in investigations concerning the Frequency of Error, and the deduction of the most probable result from a large number of observations by the Method of Least Squares (which is an immediate consequence of the ordinary “Law of Error”), are difficulties of reasoning, or logic, rather than of analysis. Hence I conceive that the elaborate analytical investigations of Laplace, Poisson, and others, do not in anywise present the question in its intrinsic simplicity. They seem to me to be necessitated by the unnatural point of view from which their authors have contemplated the question. It is, undoubtedly, a difficult one; but this is a strong reason for abstaining from the use of unnecessarily elaborate analysis, which, however beautiful in itself, does harm when it masks the real nature of the difficulty it is employed to overcome. I believe that, so far at least as mathematics is concerned, the subject ought to be found extremely simple, if we only approach it in a natural manner.


1839 ◽  
Vol 14 (1) ◽  
pp. 208-216 ◽  
Author(s):  
D. F. Gregory

The following attempt to investigate the real nature of Symbolical Algebra, as distinguished from the various branches of analysis which come under its dominion, took its rise from certain general considerations, to which I was led in following out the principle of the separation of symbols of operation from those of quantity. I cannot take it on me to say that these views are entirely new, but at least I am not aware that any one has yet exhibited them in the same form. At the same time, they appear to me to be important, as clearing up in a considerable degree the obscurity which still rests on several parts of the elements of symbolical algebra. Mr Peacock is, I believe, the only writer in this country who has attempted to write a system of algebra founded on a consideration of general principles, for the subject is not one which has much attraction for the generality of mathematicians. Much of what follows will be found to agree with what he has laid down, as well as with what has been written by the Abbé Buee and Mr Warren; but as I think that the view I have taken of the subject is more general than that which they have done, I hope that the following pages will be interesting to those who pay attention to such speculations.


Author(s):  
Jan Philipp Reemtsma

This introductory chapter reflects on the question often uttered by people when they hear of people doing reprehensible things, “How one earth….” It argues that we have always known that humans are capable of committing atrocities that leave us speechless. The real question, the one behind the screen, is: how is it possible that murderers became our “ordinary” fathers? The question is tortuous because it necessitates in us an excruciating ambivalence while confronting us with a set of unresolved moral issues. And it continues to do so despite the many real and fictionalized revolutions of 1968 and the innumerable attempts at literary reckoning with our fathers and grandfathers. The chapter also argues that the form of life we have taken to calling modernity not only ought not to have been compatible with the occurrence of violent excess in the twentieth century; once it did occur modernity at least ought to have perished as a result. Our persistent trust in modernity despite our knowledge that it is other than we presumed is the subject of this book.


1910 ◽  
Vol 42 (1) ◽  
pp. 129-140
Author(s):  
Louis de la Vallee Poussin

There is much to support the opinion of Rāmānuja, Dr. Thibaut, and many others, that Śaṃkara's doctrine of “illusion” is a biassed rendering of the old Vedānta, Bādarāyaṇik as well as Aupanishadic. If that be granted, it is by no means self-evident that Buddhism has been without influence on Śamkara's speculation; and the last writer on the subject, Vasudev Anant Sukhtankar, a very able pupil of Professor Jacobi, does not conceal his opinion, or his surmise, that Śaṃkara is indebted to Nāgārjuna. That may be true, but I would object that we really know little or nothing about the history of Vedānta, and that conclusions based on philosophical parallels are by no means definitive. Autonomous developments— autonomous if not absolutely independent—are admissible. Nāgārjuna (or his predecessors, the anonymous authors of the oldest Mahāyānasūtras), by the very fact that he proclaims “voidness” to be the real nature of things, was prepared to distinguish the relative truth (saṃvṛtisatya) and the absolute one (pāramārthika); and his nihilism coupled with “idealism” might lead to the Vijñānavāda: “existence of pure non-intelligent (?) intellect.” On the other hand the Aupanishadas, from their main thesis (tat tvam asi, etc.), could derive the distinction of the two brahmans, of the two vidyās. Both developments are natural enough; the conception of the universal void (o) and the intuition of the infinite (∞) are convergent, in the end; but parallel and convergent as they are, these developments do not lose their primitive tinge.


2013 ◽  
Vol 21 (4) ◽  
pp. 480-488 ◽  
Author(s):  
Chantal Kesteloot

This contribution focuses on the spirit and the associated behaviours belonging to Belgian society. It deals with the past and, more specifically, with the legacy of the two world wars. In which way did Flemings and Francophones interact? What is the real nature of their relations described from the roots of the many issues and embedded consequences seen even today? Why is there a different vision of the past and how did the situation evolve with the federalization within the country?


2014 ◽  
Vol 11 (01) ◽  
pp. 35-42
Author(s):  
M. Hermans

SummaryThe author presents his personal opinion inviting to discussion on the possible future role of psychiatrists. His view is based upon the many contacts with psychiatrists all over Europe, academicians and everyday professionals, as well as the familiarity with the literature. The list of papers referred to is based upon (1) the general interest concerning the subject when representing ideas also worded elsewhere, (2) the accessibility to psychiatrists and mental health professionals in Germany, (3) being costless downloadable for non-subscribers and (4) for some geographic aspects (e.g. Belgium, Spain, Sweden) and the latest scientific issues, addressing some authors directly.


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