The spatial dynamics of the optical emission from an array of 50 times 50 individual microcavity plasma devices is investigated. The array is operated in argon and argon-neon mixtures close to atmospheric pressure with an ac voltage. The optical emission is analysed with phase and space resolution. It has been found that the emission is not continuous over the entire ac period, but occurs once per half period. Each of the observed emission phases shows a self-pulsing of the discharge, with (...) several bursts of emission of fixed width and repetition rate. The number of emission bursts depends on applied voltage and frequency. Spatially resolved measurements prove that the emission bursts are formed by overlapping emission pulses from single discharge cavities. Intensity differences between positive and negative half-wave can be interpreted through spatially resolved measurements of single discharge cavities. (shrink)

Home births continue to constitute only a small percentage of all deliveries in the United States, in part because of concerns about their safety. While the literature is decidedly mixed in regard to the degree of risk, there are several studies that report that home birth may at times entail a small absolute increase in perinatal risks in circumstances that cannot always be anticipated prior to the onset of labor. While the definition of “small” will vary between individuals, and publications (...) vary in the level of risk they ascribe to birth at home, studies with the least methodological flaws and with adequate power often cite an excess death rate in the range of one per thousand.Home birth is, in that regard, but one example of patients’ choices and plans that sometimes carry increased risk or include alternatives that individual physicians feel uncomfortable supporting or recommending. Our intention in this opinion piece is not to advocate for or against home birth. Rather, we recognize that home birth is but one example of a patient choice that might differ from what a provider feels is in a woman’s best interests.In this article we will discuss ethical considerations in such circumstances using home birth as an example. We consider in this article how the ethical principles of respect for autonomy and non-maleficence can be balanced using, among other examples, the choice by some for a home birth. We discuss how absolute rather than relative risk should guide individuals’ evaluation of patient choices. We also consider how in some circumstances, the value and safety added by a physician’s participation may outweigh a potentially small increment in absolute risk that might result from a patient’s decision to deliver at home because of a perceived physician endorsement.We recognize, however, that doctors and midwives participating in choices they have not recommended, or may even believe will lead to or increase risk for adverse outcomes, presents dilemmas and raises important questions. When does respect for patient choice and autonomy become support for poor decision making? When is participation not respectful but enabling? Finally we discuss the role and responsibility of organized medicine in making all births as safe as possible. (shrink)

This article presents standards for setting up and educating institutional ethics committees (IECs). These standards are based on experiences in the Netherlands, where IECs have been established in a large number of health care institutions. Though the IEC has become a generally accepted institution within Dutch health care, there are concerns over its effectiveness regarding the improving of the moral quality of clinical decision making. Health care practitioners and members of IECs too, experience a gap between the IEC and the (...) reality of the clinical environment. At this moment, there is interest in developing programmes which educate practitioners in moral issues and how to deal with them, using the method of a structured debate on the ward. The IEC will not be made obsolete by this development, but can play a guiding role in the implementation of such programmes. Current concerns are the lack of patient representation in the Dutch IEC, and the loss of contact with the local community of health care practitioners because of the merger of hospitals into bodies similar to UK National Health Service (NHS) trusts. (shrink)

A part of relativistic dynamics is axiomatized by simple and purely geometrical axioms formulated within first-order logic. A geometrical proof of the formula connecting relativistic and rest masses of bodies is presented, leading up to a geometric explanation of Einstein's famous E = mc² . The connection of our geometrical axioms and the usual axioms on the conservation of mass, momentum and four-momentum is also investigated.

Plagiarism detection is the process of finding similarities on electronic based documents. Recently, this process is highly required because of the large number of available documents on the internet and the ability to copy and paste the text of relevant documents with simply Control+C and Control+V commands. The proposed solution is to investigate and develop an easy, fast, and multi-language support plagiarism detector with the easy of one click to detect the document plagiarism. This process will be done with the (...) support of intelligent system that can learn, change and adapt to the input document and make a cross-fast search for the content on the local repository and the online repository and link the content of the file with the matching content everywhere found. Furthermore, the supported document type that we will use is word, text and in some cases, the pdf files –where is the text can be extracting from them- and this made possible by using the DLL file from Word application that Microsoft provided on OS. The using of DLL will let us to not constrain on how to get the text from files; and will help us to apply the file on our Delphi project and walk throw our methodology and read the file word by word to grantee the best working scenarios for the calculation. In the result, this process will help in the uprising the documents quality and enhance the writer experience related to his work and will save the copyrights for the official writer of the documents by providing a new alternative tool for plagiarism detection problem for easy and fast use to the concerned Institutions for free. (shrink)

No one has as yet done for Italy what Rohde's Psyche did for Greece, and the reason is not far to seek. Rohde had at his disposal a large amount of literary material, of which no one could doubt that it represented Greek feeling and practice of various ages; but the investigator of the corresponding Italian field is met with a twofold difficulty. He must in the first place discard a great deal of the written records, because they clearly reflect, (...) not native ideas, but those which were common to the ancient world in Hellenistic times. He is then left with a very few scanty documents, which refer, not to Italy as a whole, but practically without exception to Rome, or, at any rate, to districts strongly Romanized. To add to his perplexities, he has a great mass of archaeological evidence for all ages, from the palaeolithic onwards, which, as it is unwritten, he must interpret as best he may, bearing in mind the very wide margin of error in all such attempts, and reconcile, if he can, with what the classical authors tell him. (shrink)

No one has as yet done for Italy what Rohde's Psyche did for Greece, and the reason is not far to seek. Rohde had at his disposal a large amount of literary material, of which no one could doubt that it represented Greek feeling and practice of various ages; but the investigator of the corresponding Italian field is met with a twofold difficulty. He must in the first place discard a great deal of the written records, because they clearly reflect, (...) not native ideas, but those which were common to the ancient world in Hellenistic times. He is then left with a very few scanty documents, which refer, not to Italy as a whole, but practically without exception to Rome, or, at any rate, to districts strongly Romanized. To add to his perplexities, he has a great mass of archaeological evidence for all ages, from the palaeolithic onwards, which, as it is unwritten, he must interpret as best he may, bearing in mind the very wide margin of error in all such attempts, and reconcile, if he can, with what the classical authors tell him. (shrink)

This pretty little work of the obscure Tymnes has recently been examined by A. Wilhelm in the course of a learned attempt to explain the puzzling phrase πολλ πολλν . With the result of his research in general I am not now concerned and the interpretation of this epigram does not greatly affect the value of his conclusions; but it seems worth while to point out what I believe to be the right explanation of a curious and much-emended phrase in (...) the second couplet. (shrink)