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Search Results: 1 - 10 of 1339 matches for " Ernst "
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Is the kinematics of special relativity incomplete?  [PDF]
Ernst Karl Kunst
Natural Science (NS) , 2014, DOI: 10.4236/ns.2014.64027
Abstract:

A thorough analysis of composite inertial motion (relativistic sum) within the framework of special relativity leads to the conclusion that every translational motion must be the symmetrically composite relativistic sum of a finite number of quanta of velocity. It is shown that the resulting spacetime geometry is Gaussian and the four-vector calculus to have its roots in the complex-number algebra. Furthermore, this results in superluminality of signals travelling at or nearly at the canonical velocity of light between rest frames even if resting to each other.

On the Physics inside a Closed, Static, Rotating Einsteinian Hypersphere in Due Consideration of the Galaxy  [PDF]
Ernst Karl Kunst
Natural Science (NS) , 2014, DOI: 10.4236/ns.2014.611087
Abstract:

Einstein’s weak equivalence principle suggests that gravity and acceleration (centrifugal force) are indistinguishable from each other and, therefore, equivalent. We maintain that they are not only equivalent, but even identical, or to rephrase the main statement of this work: A gravitational force does not exist. Rather, gravity is a fictitious force, or, more pointedly: Gravity is the centrifugal force which acts upon material bodies within the rotating S3-hypersphere of the Universe. These in turn warp the adjacent space-fabric, shaping it to the well-known field geometry of general relativity.

On the Probable Cause of the Discrepancies between Hipparcos and VLBI Pleiades Distance Measurements  [PDF]
Ernst Karl Kunst
Natural Science (NS) , 2014, DOI: 10.4236/ns.2014.617120
Abstract: It will show, a recent extension of special relativity on the grounds of a novel concept of velocity, which also predicts the speed of transversal motions on the plane of the sky to increase with enduring observation time, to fully explain the differences of the observational results of the former experiments referring to the distance of the Pleiades from Earth.
How Much of CAM Is Based on Research Evidence?
Edzard Ernst
Evidence-Based Complementary and Alternative Medicine , 2011, DOI: 10.1093/ecam/nep044
Abstract: The aim of this article is to provide a preliminary estimate of how much CAM is evidence-based. For this purpose, I calculated the percentage of 685 treatment/condition pairings evaluated in the “Desktop Guide to Complementary and Alternative Medicine” which are supported by sound data. The resulting figure was 7.4%. For a range of reasons, it might be a gross over-estimate. Further investigations into this subject are required to arrive at more representative figures. 1. Introduction A lively discussion exists about the question as to how much of conventional medicine might be based on sound evidence [1]. One figure that is often cited is 15% [2]. It presents, however, unreliable and out-dated information: the figure can be traced back to a small survey conducted in 1960/61 of prescribing practises of family doctors in a northern British town, which looked toward controlling prescribing costs [3]. Other experts have published more convincing data showing that an average of 76% of interventions are supported by some form of compelling evidence, with an average of 37% of interventions being supported by randomized clinical trials (RCTs) [3]. A recent systematic review [4] of the topic found that, in general internal medicine, over 50% [5] and in psychiatry over 65% [6] of interventions are based on positive data from RCTs. The discussion about the evidence-base of CAM is far less lively. Here I present a first attempt to generate some data and hopefully a constructive discussion on this potentially important subject. 2. Methods As a basis for my assessment, I used our own book The Desktop Guide to Complementary and Alternative Medicine [6]. In this book, we evaluate the research evidence from clinical trials and systematic reviews as it pertains to any type of CAM for a wide range of conditions (n = 46). For each condition, we compiled a “summary of clinical evidence” table in which the treatments are categorized according to the “weight” and “direction” of the evidence. The “weight” is conceptualized as a composite measure of the quantity, quality and level of the research evidence, which refers to the confidence that can be placed on that evidence [6]. The quantity refers to the total patient sample included in all clinical trials—there could, for instance, be five studies with an average of 20 patients resulting in a total sample of 100; this would be less than a single study with a sample of 300. The quality of the trial evidence refers to the likelihood of bias, usually estimated with a score such as the Jadad score [7]. The level of the evidence
Winnowing the Chaff of Charlatanism from the Wheat of Science
E. Ernst
Evidence-Based Complementary and Alternative Medicine , 2010, DOI: 10.1093/ecam/nen089
Abstract: Experts and lay people alike can sometimes find it difficult to demarcate the absurd. Here I propose a set of criteria that may be helpful in achieving this in the realm of healthcare: falsifiability, plausibility and some hallmarks of pseudoscience. Applying this method is unlikely to be fool-proof but it might be a valuable aid in discriminating credible from incredible health claims.
Wirtschafliche auswirkungen der einkreuzung von Holstein-Friesians in deutsche schwarzbunte rinder
E Ernst
Genetics Selection Evolution , 1975, DOI: 10.1186/1297-9686-7-2-237b
Abstract:
Book Review
Ernst Wit
Human Genomics , 2004, DOI: 10.1186/1479-7364-1-6-465
Abstract:
On Onchidella indolens (Gould, 1852)
Marcus, Ernst;
Boletim do Instituto Oceanográfico , 1954, DOI: 10.1590/S0373-55241954000100004
Abstract: a "lesma da pedra", onchidella indolens (gould, 1852), descrita da ilha do pai, perto do rio de janeiro, e, em 1952-54, verificada em várias localidades da costa de s?o paulo, foi encontrada, em julho de 1955, as centenas, nas rochas situadas defronte à "base norte" do instituto oceanográfico, 14km ao oeste de ubatuba. essas lesmas comem diatomáceas e outras algas crescidas na película de sedimentos que recobre as pedras. sobre estas deslizam durante a vasante, fora dágua, respirando ar atmosférico por meio da sua cavidade pulmonar. antes de voltar a maré, as lesmas escondem-se em fendas das rochas, onde permanecem durante a enchente. debaixo dágua, a respira??o é cutanea. ba dias ventosos n?o saem dos seus ninhos. sistemàticamente, n?o s?o mais incluídas nos pulmonata stylommatophora, mas consideradas como pertencentes a uma ordem especial, seja dos opisthobranchia ou seja, para quem preferir suprimir esta subclasse dos gastropoda, dos euthyneura.
Notes on Aplysia
Marcus, Ernst;
Boletim do Instituto Oceanográfico , 1957, DOI: 10.1590/S0373-55241957000100001
Abstract: de aplysia cervina (dall & simpson 1901) conhecia-se, do brasil, um exemplar de maceió. mais um, quase maduro, foi colhido no eulitoral da ilha de s?o sebasti?o. enquanto vivente, tinha comprimento de 10 cm. a espécie distingue-se, de a. brasiliana, pelas manchas escuras redondas (fig. 1), pela forma das mandíbulas (fig. 4) e dos bastonetes (fig. 5) que as comp?em, pelo ceco (fig. 7, c) encurvado e dirigido mais transversal que longitudinalmente, e pela aproxima??o dos ganglios bucais. a rádula n?o oferece seguros critérios sistemáticos. a chave para determinar as 5 espécies de aplysia, ocorrentes na costa brasileira, possibilita classifica??o de espécimes adultos, viventes ou conservados em formalina, sem dissec??o. a compara??o dos órg?os reprodutivos de a. brasiliana, dactylomela, juliana, e cervina mostra que, para a fecunda??o dos óvulos, os espermatozóides saem do espermatocisto (s) pelo duto (se) deste. daí passam para a vagina (v). sobem nela até à regi?o em que os compartimentos vaginal e oviducal (o) se comunicam. entram no último e descem nele para a camara de fertiliza??o (ci). duto uterino (duto de cuvier) ou comunica??o entre vagina e a dita camara inexiste. a bursa seminal (b) é comparável à glandula atrial de phyllaplysia (marcus 1957, f. 15, 16, ae).
A new Pycnogonum from Brazil
Marcus, Ernst;
Boletim do Instituto Oceanográfico , 1962, DOI: 10.1590/S0373-55241962000300001
Abstract: pycnogonum gibberum, spec, nov., da ilha lage de santos, 32 m, distingue-se da espécie semelhante, p. reticulatum hedgpeth 1948, pela altura das saliências medianas superior à do tubérculo ocular, gibas dorsais mais numerosas, tromba mais estreita na ponta, e pormenores das dimens?es do 3.o e 4.o artículos do ovígero e das tíbias nas fêmeas. pycnogonum cessaci bouvier 1911 e p. leticiae mello-leit?o 1945 s?o idênticos (fage 1952). p. pamphorum marcus 1940 difere de cessaci pela presen?a de unhas auxiliares, ausência de proeminência atrás do tubérculo ocular, tromba quase de forma de tonel, n?o cilíndrica, e outros caracteres indicados por fage.
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