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  • Nature Publishing Group  (4,436)
  • 1995-1999  (4,436)
  • 1996  (4,436)
  • 1
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    [s.l.] : Nature Publishing Group
    Nature 384 (1996), S. 518-519 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] T LYMPHOCYTES sense the infection of a cell by recognizing viral or bacterial pep-tides that are displayed at the cell surface in association with major histocompatibility complex (MHC) class I molecules. The T lymphocytes scan the surfaces of cells for peptide/MHC complexes that have the capacity ...
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  • 2
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    Nature 384 (1996), S. 519-519 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] LAST week, Daedalus outlined a way of inverting living tissue. He reckoned that if it were treated with heavy water, the outer cell membranes would tend to warp concave. Ultrasonic agitation could then turn the whole system inside-out, so to speak. The cell interiors would merge into a continuous ...
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  • 3
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    [s.l.] : Nature Publishing Group
    Nature 384 (1996), S. 520-520 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AMONG the great intellectual achieve-ments of this century is the theory of ele-mentary particles that has come to be known as the Standard Model. It repre-sents the cumulative effort of many pro-found and imaginative thinkers whose common motivation was to find some glimmer of understanding as to ...
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  • 4
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    [s.l.] : Nature Publishing Group
    Nature 384 (1996), S. 521-522 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - Sea turtle populations are facing an increasing threat from anthropogenic developments along shores. The long-term effects of the elimination of sea turtle nesting beaches have been unpre-dictable because of the lack of informa-tion on the precision of natal homing behaviour and gene flow ...
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  • 5
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    Nature 384 (1996), S. 528-528 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Edge of the Unknown: 101 Things You Don't Know About Science and No One Else Does Either by James Trefil. Houghton Mifflin, $23. Great scientific questions such as "How did life begin?" or "So where are all the black holes?" or "Who were the earliest humans?" tackled by one of ...
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    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We began by fusing the cytochrome b2 presequence to mouse dihydrofolate reductase (DHFR), generating a hybrid precursor targeted to the intermembrane space4. This precursor was then modified to contain a unique cysteine between the uncharged stretch and the cleavage site for the inner-membrane ...
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  • 7
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    Nature 384 (1996), S. 404-404 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR — Exactly what do we recognize in a face? Intuition suggests that it is the eyes, nose and mouth — they, after all, are what the dictionary uses to define a 'face'. Portraitists labour to get these features right and poets describe the eyes as sure betrayers of identity. Computer ...
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  • 8
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    [s.l.] : Nature Publishing Group
    Nature 384 (1996), S. 405-406 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] LARGE DNA viruses such as adenovirus, herpes simplex viruses 1 and 2, Epstein-Barr virus and cytomegalovirus have evolved sophisticated mechanisms to avoid detection by their hosts' immune systems1. Most of these mechanisms are geared towards preventing the expression of antigenic viral peptides ...
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  • 9
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    Nature 384 (1996), S. 409-409 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THAT the Earth's surface consists of rigid plates that travel the globe and interact along their boundaries was a central and highly successful tenet of plate tectonic theory in the 1960s. But whereas the oceanic plates fit this model well, their continental counterparts, with their thicker, ...
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  • 10
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    Nature 384 (1996), S. 413-415 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THERE is a class of light nuclei that have diffuse 'nuclear halos' outside their central cores. Only discovered a decade ago, the phenomenon is also likely to occur in heavier nuclei, as yet not accessible to experiment. It has implications for the study of nuclear three-body effects and also for ...
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    Nature 384 (1996), S. 417-417 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ALMOST all living things are made of cells densely packed together in a watery intercellular medium. The outer cell membrane may simply be an oily bilayer of phospholipid molecules, with various proteins swimming in it. An assembly of cells is rather like a dense emulsion of oil in water, but with ...
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  • 12
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    Nature 384 (1996), S. 418-418 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] HANS Kosterlitz, who died on 26 October in his beloved Aberdeen, often remarked that he had really wanted to be a mathematician but that medicine offered a more certain living. His mathematical grasp of problems stood him in good stead, however, over a scientific career which spanned more than 50 ...
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    Nature 384 (1996), S. 401-401 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR — When you wrote about the report, in "50 years ago", on locating radium-labelled click beetles (Agriotes sp.) with a Geiger-Miiller counter (Nature 17 October 1996, ix), you might have mentioned a method described many years earlier by J. M. Barrie, whereby the sound of ticking served to ...
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  • 14
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    Nature 384 (1996), S. 404-404 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR — The recent debate in Nature about Austrian biomedical research has highlighted several shortcomings but has failed to identify the cause of the problem. I think Austrian science suffers mostly from organizational defects in the university system. The faculties are run by an ...
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  • 15
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    Nature 384 (1996), S. 407-408 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ALMOST every person reading this article will know of somebody who suffers from diabetes — at a frequency of about 3 people in 100 it is one of the world's most common inherited diseases. Unfortunately, inheritance of the common forms of diabetes is not simple, making it difficult to identify ...
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  • 16
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    Nature 384 (1996), S. 412-413 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE fungus gnat Sciam coprophila is a dipteran (two-winged) insect like the fruit fly Drosophila. But unlike Drosophila, Sciara undergoes programmed chromosome loss as part of its normal mechanism of sex determination during early development. Although the unusual behaviour of Sciara chromosomes ...
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  • 17
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    Nature 384 (1996), S. 419-419 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR — Here I look at the relationship between the mechanical properties of silk drag-lines and a spider's weight, to explain the measured values of the mechanical strength of drag-lines. Spider silks have been studied from the points of view of mechanical strength1'3, strain energy4, ...
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  • 18
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    Nature 384 (1996), S. 421-421 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR — The unexpected observation we report here is that a compact electron cyclotron resonance magnetic mirror discharge can possibly produce medical X-rays with energy up to 100 keV. This device is driven by a c.w. 2.45-GHz microwave source of maximum power 700 W. It has no electron-emitting ...
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  • 19
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    Nature 384 (1996), S. 425-425 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MOST scientists can't write, as any publisher will tell you. The few who can compose a literate, jargon-free essay are constantly in demand by the literati's house journals, always eager to point out that their tastes are so broad that they include practically everything, even science. This ...
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    Nature 384 (1996), S. 298-298 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Munich. An international convention permitting the use of human embryos for research — but forbidding their creation for such purposes — was adopted last week by the Council of Europe, an intergovernmental body to which 40 states belong. The Convention on Human Rights and ...
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    Nature 384 (1996), S. 302-302 
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Munich. Geneticists in Birmingham and Munich have solved the long-running mystery surrounding the identity of the nineteenth century foundling Kaspar Hauser: he was not, as has been claimed, a noble heir. Hauser was found in Nuremberg in 1828, having apparently spent the first 16 years of his life ...
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    Nature 384 (1996), S. 304-304 
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    Notes: [Auszug] SIR — The main theme of the study on atmospheric CO2 you published earlier this year by Wigley et al was that "[pjathways involving modest reductions below a 'busi-ness-as-usual' (BAU) scenario in the early years followed by sharper reductions later on were found to be less expensive than ...
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    Nature 384 (1996), S. 304-304 
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    Notes: [Auszug] SIR — Mark Griffiths suggests six components that "need to be fulfilled if a behaviour is to be defined as 'addictive' " (Nature 384, 18; 1996). My scientific activities fulfil all six components, and my weekly reading of Nature fulfils three. Having experienced signs of withdrawal, ...
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    Nature 384 (1996), S. 305-305 
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    Notes: [Auszug] HE is a 35-year old postdoctoral researcher who has worked in highly regarded laboratories. He has a long list of publications, has taught at two universities and won excellent marks in student evaluations. So you might expect him to be one of the most promising applicants for a professorship. ...
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    Nature 384 (1996), S. 307-308 
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    Notes: [Auszug] ACCORDING to Gordon Moore of Intel, we now make more transistors per year than raindrops fall in California, and it costs less to make one than to print a character on this page. The reason is the astonishing power of silicon electronic integration technology to manufacture sophisticated yet cheap ...
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    Nature 384 (1996), S. 474-478 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] To assess the role of GATA-3 in murine haematopoiesis, a deletion was introduced into exons 4 and 5 of the GATA-3 gene in murine ES cells by homologous recombination (Fig. la). This deletion resulted in the replacement of the DNA-binding domain of GATA-3 with a PGK-neoR cassette. Several ...
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  • 27
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    Notes: [Auszug] FIG. 1 Domain structure of the ARNO protein, a, Amino-acid sequence. The coiled-coil (dotted line), Sec7 (double line) and PH (single line) domains are underlined (accession number, X99753). b, The Sec7-homology domain present in human ARNO, Arabidopsis EmbSO (ref. 10), a C. elegans protein11 ...
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    Nature 384 (1996), S. 422-422 
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    Notes: [Auszug] SIR — Ibba and Soil have proposed a resolution for an apparent controversy over the basis for recognition of a critical G-U wobble base pair in an RNA helix1. We wish to point out that their proposal is not supported by extensive published literature and that more plausible explanations are ...
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    Nature 384 (1996), S. 422-422 
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    Notes: [Auszug] IBBA AND SOLL REPLY — Schimmel and Musier-Forsyth raise various relevant points, the most pertinent of which is the requirement of tRNA for aminoacyl-adenylate formation by glutaminyl-tRNA synthetase, but not by alanyl-tRNA synthetase. This, we fully accept, makes extrapolation of results ...
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    Nature 384 (1996), S. 325-325 
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    Notes: [Auszug] ALBERT Camus was probably right when he said that "All great deeds and all great thoughts have ridiculous beginnings". Had he been a scientist, he might have added that all great theories have paradoxical beginnings. Such is the conclusion of Etienne Klein in his new book, which offers a ...
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    Nature 384 (1996), S. 425-425 
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    Notes: [Auszug] "TIME and space are now seen as dynamic quantities with each individual particle, or planet, having its own unique measure of time depending on where and how each is moving." From The Illustrated A Brief History of Time, an updated and expanded edition of Stephen Hawking's classic, which has sold ...
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    Nature 384 (1996), S. 426-426 
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    Notes: [Auszug] The Race Gallery: The Return of Racial Science by Marek Kohn.Vintage, £6.99. "A useful book... principally about current events rather than being a weighty discussion of underlying issues", Jonathan Marks, Nature 378,143 (1995). Ancestral Passions: The Leakey Family and the Quest for ...
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    Nature 384 (1996), S. 453-455 
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    Notes: [Auszug] Shortly after Williston's5 influential contribution to reptile classification, it became accepted that reptile interrelationships can be determined on the basis of temporal fenestration. It was recognized that two basic modes of dermatocranial reduction can be distinguished in the reptile skull: ...
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    Notes: [Auszug] To examine the potential role of tropospheric dust in glacial climates, we carried out two sets of simulations with the NASA Goddard Institute for Space Studies (GISS) general circulation model (Model II, using 4° x 5° latitude-longitude resolution, full seasonal cycle, interactive land ...
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    Notes: [Auszug] The R-W pedigree (Fig. 1), which includes more than 360 members spanning 6 generations and 74 members with diabetes, including those with MODY, has been studied prospectively since 1958 (ref. 1). The members of this family are descendants of a couple that emigrated from East Prussia to Detroit, ...
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    Notes: [Auszug] Linkage analysis localized MODY3 to a 5-cM interval between the markers D12S86 andD12S807/D12S820 (ref. 13). A combined yeast (YAC), bacterial (BAG) and PI-derived artificial chromosome (PAC) contig spanning D12S86 and D12S807 (Fig. 1) was generated using information in public databases14'15 and ...
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    Notes: [Auszug] Catalytic combustion of pollutants offers considerable advantages over currently industrially operated thermal combustion. As the catalyst effects oxidative destruction at lower temperatures it is not classed as an incineration process and this eliminates many regulatory requirements. In addition, ...
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    Nature 384 (1996), S. 102-102 
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    Notes: [Auszug] Washington. The steering committee of the US National Action Plan on Breast Cancer voted last week to return nearly all of its $14.75 million 1997 budget to the National Cancer Institute (NCI). The vote marks a dramatic assertion of power by those within the group who have argued that funds ...
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    Nature 384 (1996), S. 105-105 
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    Notes: [Auszug] SIR — A. G. Gordon's proposed explanation of the function of the stapedial muscle as a noise protection system triggered by the tactile pressure produced by a blast wave impinging upon the outer entrance of the ear canal is certainly interesting, but unfortunately rather nonsensical from a ...
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    Nature 384 (1996), S. 106-106 
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    Notes: [Auszug] SIR — Your reports on the production of 'herbal petrol' by Ramar Pillai of Tamil Nadu in India may have given the impression that his claim has been substantiated (Nature 383,112; 1996). Not only is that not true, but it is clear that he is a hoaxer, and that the petrol he has been producing ...
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    Nature 384 (1996), S. 113-114 
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    Notes: [Auszug] IT is immensely satisfying to be able to look directly at a well-known biological phenomenon. Nervous systems, whether large or small, employ neuromodulatory substances to fine-tune synapses, neuronal excitability and circuit dynamics, to produce a range of behaviourally relevant outputs1'2. On ...
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    Nature 384 (1996), S. 229-230 
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    Notes: [Auszug] RICHARD Evans Schultes, a young graduate student interested in medicine, took a part-time job at Harvard Botanical Museum in 1934, working for the renowned economic botanist Oakes Ames. Schultes took Ames's course, "Plants and human affairs", a decision that changed his life, and botanical history, ...
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    Nature 384 (1996), S. 123-124 
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    Notes: [Auszug] SIR — The serine protease tissue plas-minogen activator (tPA) has been implicated in brain hippocampal function, as its messenger RNA is present1 and is rapidly induced in the rat and mouse hippocampus on pharmacological or electrical induction of neuronal activity2'3. In addition, mice ...
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    Nature 384 (1996), S. 127-128 
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    Notes: [Auszug] THE prize-winning science journalist Gina Maranto's book about the history, present state and possible future of test-tube fertilization begins light-heartedly. Jamie Grifo, a reproductive endocrinolo-gist at New York University, is "the kind of doctor nurses adore". Grifo has a "repertoire of ...
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    Nature 384 (1996), S. 98-98 
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    Notes: [Auszug] Paris. France's Centre National d'Etudes Spatiales (CNES), the world's third biggest space agency and the driving force behind Europe's space programme, is on the verge of a major reorganization aimed at adapting to the new environment created by the end of the Cold War and the increasing ...
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    Nature 384 (1996), S. 104-105 
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    Notes: [Auszug] SIR — I was outraged and saddened by Dan Graur's letter (Nature 383, 116; 1996) about the conference on "Women in Evolution" held at the University of Arkansas in September. As a participant and workshop discussion facilitator at this conference, and as the bearer of a single X ...
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    Nature 384 (1996), S. 3-4 
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    Notes: [Auszug] London. The UK government last week joined the debate over whether life exists - or has existed - on Mars by hosting a conference in London on extra-planetary life, a major aim of which was to show that British research does not lag behind that of the United States. Indeed, a press release ...
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    Nature 384 (1996), S. 3-4 
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    Notes: [Auszug] Washington. Despite the announcement last week by a group British researchers that they had observed signs of biology in a second martian meteorite (see above), most space scientists and bio-logists remain sceptical that the claim made this summer by a US team of past life on Mars will stand up to ...
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    Nature 384 (1996), S. 6-7 
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    Notes: [Auszug] Washington. Fresh efforts to crack down on scientific misconduct could follow last week's revelations of extraordinary and systematic fraud by a graduate student in the laboratory of Francis Collins, director of the National Center for Human Genome Research (NCHGR) at the National Institutes of ...
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    Nature 384 (1996), S. 338-341 
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    Notes: [Auszug] FIG. I/A, Micrograph of an integrated LED/bipolar-transistor structure (A, a) along with the cross-section (A, b) and equivalent circuit (A, c). The LED is in the centre of the structure, and has a 400-jim-diameter active light-emitting area. The micrograph shows (centre) a crosshatched aluminum ...
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    Nature 384 (1996), S. 346-349 
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    Notes: [Auszug] Non-LTR retrotransposable elements comprise a distinct group in the retroid lineage10. These elements are on average 4-5 kilobases (kb) long, have no introns, lack terminal repeats, have a dA-rich tail at the 3' end, and contain 1-2 open reading frames, one of which encodes the reverse ...
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    Nature 384 (1996), S. 123-123 
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    Notes: [Auszug] SIR — A notochord and dorsal tubular nerve cord are essential features of chor-dates, and must have evolved in the most ancient members of our phylum. How complex was the primitive chordate neural tube? Ascidians, as members of the urochordate subphylum, derived from the most basal extant ...
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    Nature 384 (1996), S. 23-24 
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    Notes: [Auszug] WHEN cells are activated by a variety of stimuli, their membrane lipids are rapidly remodelled to generate biologically active lipid mediators that can serve as intra-cellular or extracellular signals (reviewed in ref. 1). The biosynthesis of these lipids - particularly the eicosanoids - is ...
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    Nature 384 (1996), S. 125-126 
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    Notes: [Auszug] FRANK Sulloway believes that he has identified a primary "engine of historical change". Marx was mistaken in his belief that historical change came about because of clashes between social classes. Freud's claims about the primacy of libidinal urges and Oedipal complexes were similarly ...
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    Nature 384 (1996), S. 28-29 
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    Notes: [Auszug] 'OiL and water don't mix' says the old saw. But many immiscible liquids, in the pres-ence of a soap or some other surfactant, can self-assemble into a rich variety of regular phases. Characterized by their inter-material dividing surfaces - where the different substances touch - these FIG. ...
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    Nature 384 (1996), S. 358-360 
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    Notes: [Auszug] Two populations of dots moving in different directions are readily perceived as two transparently moving sheets15. After adaptation to such 'transparent motion', observers never perceive a transparent motion after-effect (MAE), but rather a unidirectional MAE, opposite to the vector sum of the ...
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    Notes: [Auszug] We designed a targeting vector that replaces a Hindlll genomic fragment encoding a conserved motif (QACRG) with the neomy-cin resistance gene (neo) (Fig. la). The correct homologous event in embryonic stem (ES) cells was confirmed by Southern blot analysis (Fig. Ib), and the absence of CPP32 ...
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    Notes: [Auszug] In an attempt to isolate proteins that interact with TNFR1, we cloned the death domain of this receptor and expressed it in yeast as a GAL4 fusion protein. This construct was used to screen a HeLa cell two-hybrid library7'8. From approximately two million transformants, seven clones were isolated ...
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    Nature 384 (1996), S. 384-384 
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    Notes: [Auszug] Nature 381, 86-89 (1996) FIGURE 1 is reproduced again here because the original image reproduction was incorrect and masked critical bands in the ...
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    Nature 384 (1996), S. 1-1 
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    Notes: [Auszug] A TWELVE-YEAR battle between Immunex and Cistron has ended with the payment by the former to the latter of $21 million, as well as patent rights to the interleukin-1 protein at the centre of their dispute (see page 4). Cistron sued Immunex because it believed that a scientist at that company had ...
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    Nature 384 (1996), S. 200-200 
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    Notes: [Auszug] San Francisco. Merger of the hospitals of Stanford University and of the University of California in San Francisco (UCSF) was approved last week by the authorities at both universities. The two schools will continue to operate independent research laboratories and medical schools, but are ...
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    Nature 384 (1996), S. 201-201 
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    Notes: [Auszug] London. The 'mad cow' crisis has exposed the need to reform Britain's system for providing scientific expertise to the government by making expert committees more representative and open, according to speakers at a meeting of politicians, public health officials, and farming and consumer ...
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    Nature 383 (1996), S. 748-748 
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    Notes: [Auszug] Utrecht. The introduction of a new European Union law banning the avoidable use of animals in toxicity tests for cosmetics is likely to be delayed until 2000 because no suitable alternative tests have been successfully developed. Member states of the union had agreed to a European Commission ...
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    Nature 384 (1996), S. 203-203 
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    Notes: [Auszug] Paris. The European Commission last week postponed a decision on the approval of imports from the United States and elsewhere of Ciba Geigy's genetically-modified maize until the end of the year, citing the time needed for its three scientific committees — on food, animal nutrition and ...
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    Nature 384 (1996), S. 208-208 
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    Notes: [Auszug] SIR — It was not my intention in my report on "Fringe science in the 104th Congress", discussed in your leading article "Don't ban sceptics" (Nature 383, 745; 1996), to imply that dissenting scientific viewpoints should be suppressed. Nor was it my intention to reflect ...
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    Nature 384 (1996), S. 26-26 
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    Notes: [Auszug] DMA-binding proteins come in many shapes and sizes, reflecting the diversity of the DNA structures to which they attach. The crystal structure of one such protein - Escherichia coli RuvA - has now been solved by John Rafferty and co-workers (J. B. Rafferty et al. Science 274, 415-421; 1996), and ...
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    Notes: [Auszug] The developmental and genetic bases for the formation, plasticity and diversity of eyespot patterns in butterflies are examined. Eyespot pattern mutants, regulatory gene expression, and transplants of the eyespot developmental organizer demonstrate that eyespot position, number, size and colour are ...
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    Notes: [Auszug] The significantly different structures of SAMs and Langmuir monolayers composed of similar chain-like molecules reflect fundamental differences in the subphase-end-group interactions. First, the bond strengths of SAMs to solid substrates (typically a few hundred kilojoules per mole) greatly exceed ...
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    Notes: [Auszug] The assessment model presented here integrates dynamic aspects of the full source-risk chain: from the production and emission of ozone-depleting substances through ozone depletion and increases in carcinogenic ultraviolet (UV) radiation up to increases in skin cancer incidence. The combination of ...
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    Nature 384 (1996), S. 263-266 
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    Notes: [Auszug] The majority of T lymphocytes that respond to pigeon cyto-chrome c (PCC) in B10.A mice bear TCRs encoded by the Vull and V/33 gene segments6'7 and can be identified in histological sections by immunolabelling and genetic analysis8'11. Average densities for Vodl+Vp3+ T cells in the periarteriolar ...
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    Nature 384 (1996), S. 261-263 
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    Notes: [Auszug] Oncostatin M (OM) is a member of the interleukin-6 (IL-6) subfamily of cytokines that is expressed by haematopoietic tissues and cells5'6. When the p56lck proximal promoter was used to express the bovine oncostatin M (OM) gene in the early T lineage4, there was a dramatic accumulation of lymph node ...
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    Nature 383 (1996), S. 659-659 
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    Notes: [Auszug] Munich. A coordinated study aimed at iden-tifying gaps and weaknesses in Europe's basic research efforts is to be carried out by several European national research-funding bodies. The survey will be the first test of the ability of an informal group known as Eurohorcs (European heads of research ...
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    Nature 383 (1996), S. 659-659 
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    Notes: [Auszug] Washington. The concept of a scientific 'landscape' is being given a literal interpretation by researchers at the Sandia National Laboratory in Albu-querque, New Mexico, who have developed a computer tool that shows up scientific trends as ripples, flows, peaks and gorges on a three-dimensional ...
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    Notes: [Auszug] Oligodendrocytes are responsible for myelination in the central nervous system. Bipolar oligodendrocyte progenitor cells from neonatal rat cortex were separated from mixed glial cultures by differential shaking2 and allowed to differentiate in the presence of serum-free medium (differentiation ...
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    Nature 384 (1996), S. 103-103 
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    Notes: [Auszug] SIR — A PhD degree, by most university standards, trains a scientist to be capable of independent research. So it is sad to read of postdoctoral scientists routinely referred to as 'students'. The freedom of postdoctoral scientists has been systematically eroded over the years and now we are ...
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    Nature 383 (1996), S. 767-767 
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    Notes: [Auszug] SIR - Insects exhibit both humoral and cellular immune responses that are effective against various pathogens and parasites including fungi, protozoa, bacteria, nematodes and parasitic hymenoptera1. No insect immune response effective against viral infections has yet been described. Using a ...
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    Nature 383 (1996), S. 771-772 
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    Notes: [Auszug] Full House: The Spread of Excellence from Plato to Darwin. By Stephen Jay Gould. Harmony/Cape. Pp. 244. $25, á£16.99. UK title is "Life's Grandeur". WHAT is the difference between a drunkard who, staggering out of a pub, ends in the gutter, and life, which, starting from primitive ...
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    Nature 383 (1996), S. 772-772 
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    Notes: [Auszug] Beyond Science. By John Polkinghorne. Cambridge University Press: 1996. Pp. 131. £13.95, $19.95. ALL those with even a modicum of intelligence who believe that 'creation science' should be given equal time with evolution in school curricula ought to read this charming little book. John ...
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    Nature 383 (1996), S. 569-569 
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    Notes: [Auszug] SIR á€" I was disappointed by the photograph of Sheffield that you used to illustrate your recent News story on British government plans to cut air pollution by 2005 (Nature 382,743; 1996). The photograph was clearly taken some years ago. Sheffield is now rightly regarded ...
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    Notes: [Auszug] To distinguish effects due to internal stellar evolution on the red-giant branch (RGB) from those which may have been present before this point, we have observed unevolved, or main-sequence, stars in the nearby globular cluster 47 Tucanae. By virtue of its relatively high metallicity, [Fe/H] = ...
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    Nature 383 (1996), S. 781-782 
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    Notes: [Auszug] Typhoid Mary: Captive to the Public's Health. By Judith Walzer Leavitt. Beacon: 1996. Pp. 331. $25. TYPHOID Mary pops up time and again as one of the colourful villains of medical history á€" indeed a femme fatale in the most literal sense. She was the cook who, while healthy ...
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    Nature 383 (1996), S. 786-786 
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    Notes: [Auszug] A Perfect Harmony. By Roger A. Caras. Simon and Schuster: 1996. Pp. 271. $23. THE behavioural and cultural changes brought about in animals by domestication have been a neglected area of study. This is in great part because domestic animals have been considered to be artefacts of human culture ...
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    Notes: [Auszug] In Fig. la we show a fluorescence image of single 21-A-radius CdSe nanocrystals, embedded in a thin polyvinylbutyral film, at room temperature. The streaks in the image are a consequence of raster scanning the sample across a diffraction-limited laser spot, and arise due to the discrete turning on ...
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    Notes: [Auszug] The infection of blastula-stage zebrafish embryos with murine leukaemia virus/vesicular stomatitis virus pseudotyped retroviral vectors7'8 results in the germline transmission of proviral insertions6'9. Integration of proviral DNA into the mouse genome can disrupt essential genes10. In an effort to ...
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    Nature 383 (1996), S. 465-465 
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    Notes: [Auszug] London. The 1996 Nobel prize for physiology or medicine has been awarded to two immunologists for a pioneering discovery, made more than two decades ago, of the way in which the immune system recognizes virus-infected cells. The award has been made to Peter C. Doherty, adjunct professor of ...
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    Nature 384 (1996), S. 11-11 
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    Notes: [Auszug] HALF-WAY through its five-year term of office, South Africa's Government of National Unity is still far from meeting the high hopes of its scientific community that the ending of apartheid would lead to a blos-soming of research activities. Part of the reason has been financial. Not only has ...
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    Nature 383 (1996), S. 474-474 
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    Notes: [Auszug] SIR á€" You recently published a review of my book The Economic Laws of Scientific Research (Nature 382,123-124; 1996). More recently, David Swinbanks reported on Singapore's research funding (Nature 383, 110; 1996), and his report seems to illustrate those laws beautifully. ...
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    Nature 383 (1996), S. 476-477 
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    Notes: [Auszug] IN Alzheimer's disease (AD), intellectual decline is associated with two types of fibrous-protein deposition in the brain á€" abundant extracellular fibrils of p-amy-loid, and intracellular fibrils of polymerized tau. In consequence, researchers have become divided into two camps ...
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    Nature 383 (1996), S. 487-487 
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    Notes: [Auszug] SIR á€" Epizootics resulting in mass mortalities of Caribbean sea fans have been observed for more than 15 years, but the cause has remained unresolved1"3. Here we report for the first time the presence of a putative pathogen associated with diseased sea-fan tissue throughout the ...
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    Nature 383 (1996), S. 490-490 
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR á€" A complex head is a fundamental defining feature of the vertebrates, but the origins and antiquity of many characters within the head are obscure. These can be investigated by comparison with cephalo-chordates (amphioxus), which retain characteristics of vertebrate ...
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  • 91
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    Nature 383 (1996), S. 493-494 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE idea of twins, particularly identical twins, is too good to have been missed by nature or by art. Science is littered with attempts to use twins to solve genetic puzzles, such as diabetes, by exploiting the opportunities offered by two people with exactly the same genes. Mistaken identity, an ...
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  • 92
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    [s.l.] : Nature Publishing Group
    Nature 383 (1996), S. 494-494 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Ehrlichs have been insulted, their sanity questioned, their writings and depressingly accurate apocalyptic predictions misquoted, their humanity denied, and their friends likewise besmirched. Like the Ehrlichs themselves, this is a wickedly funny book and it takes no prisoners among their ...
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  • 93
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    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A 64 km2 region of the eastern equatorial Pacific Ocean was enriched with ferrous sulphate to a final concentration of 2 nM iron on 29 May, followed by two 1 nM iron enrichments on 1 and 5 June 19958. The effects of iron enrichment were detected in real time by following changes in variable ...
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  • 94
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The previously described KVLQT1 complementary DNA pre-dicted a protein with six hydrophobia membrane-spanning a-helices (S1-S6), and a typical K+ channel pore-signature sequence11. However, this cDNA seemed to be lacking the amino-terminal domain and was not able to undergo functional expres-sion. ...
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  • 95
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    [s.l.] : Nature Publishing Group
    Nature 383 (1996), S. 745-745 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DURING a series of lively hearings last autumn before a subcommittee of the US House of Representatives, members of the Republican majority sought to find hard evidence that the peer-review process for environmental sciences is being corrupted by institutional bias. Allegations were made to the ...
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  • 96
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    Nature 383 (1996), S. 751-752 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] London. Britain's newly privatized nuclear power industry is facing a critical few months as it contemplates how to dispose of up to 300,000 cubic metres of radioactive waste by early next century á€" and answer critics who claim that its plans are unsafe. At stake is the ...
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  • 97
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    [s.l.] : Nature Publishing Group
    Nature 383 (1996), S. 753-753 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Washington. Ten days before next week's presidential election, in which the votes of women are expected to play a decisive role, President Bill Clinton announced last Sunday that he will redirect US$30 million to breast cancer genetics research in 1997. Exactly $20 million will come from a ...
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  • 98
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    [s.l.] : Nature Publishing Group
    Nature 383 (1996), S. 753-753 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] London. The German cabinet is to vote next week on a proposal from its federal health ministry to ban the importation from Britain and France of certain sheep parts á€" in particular brains, spinal cords and eyeballs á€" out of concern that they could have become ...
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  • 99
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    Nature 383 (1996), S. 756-756 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - In recent years, the Philip Morris Prize for Scientific and Technological Research has been advertised in leading Italian newspapers, and three government bodies have given it their patronage á€" the National Research Council (CNR), the Ministry of University and Research and ...
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  • 100
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    [s.l.] : Nature Publishing Group
    Nature 383 (1996), S. 760-761 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] CONFOCAL scanning laser microscopes have a great advantage over ordinary optical microscopes: they reject light that does not come from the focal plane. That enables them to perform optical tomography, slicing up an object into planes so that its full three-dimensional structure can be built up. ...
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