2,333 research outputs found
Herbert J. Muller Distinguished Visiting Professor
No full textHerbert J. Muller, American historian, professor, government official, and author, is speaking at The University of Alabama around 1968
Herbert J. Muller, speaking at The University of Alabama
No full textHerbert J. Muller, American historian, professor, government official, and author, is speaking at The University of Alabama around 1968
Restrictions on the weight distribution of binary linear codes imposed by the structure of Reed-Muller codes
No full textAbstmcf-The words of a binary linear [n,k] code C whose weights belong to a given subset I C { 0, 1,..., n} constitute a word in a certain Reed-Muller code!R!Dl((r, k). Appropriate choices of I result in low values of the order r and thus yield restrictions on the weight distribution of C. Index I?"- Binary linear d e, affine code, weight distribution, Reed-Muller code. I
Why alief is not a legitimate psychological category
No full textWe defend the view that belief is a psychological category against a recent attempt to recast it as a normative one. Tamar Gendler has argued that to properly understand how beliefs function in the regulation and production of action, we need to contrast beliefs with a class of psychological states and processes she calls aliefs. We agree with Gendler that affective states as well as habits and instincts deserve more attention than they receive in the contemporary philosophical psychology literature. But we argue that it is a serious error to align beliefs with the norm of rationality, while building a contrasting category whose members are characterized primarily by their failure to measure up to that normative standard, since these latter ones cannot constitute a distinct psychological category. First, we demonstrate that Gendler gets unwarranted conclusions about the existence of aliefs from belief-discordant cases. Next, we argue that the concept of alief is insufficiently clear. Aliefs cannot be distinguished from other types of states, such as beliefs. Also, when grouping many states under the category of aliefs, Gendler overlooks important differences between phenomena that are clearly distinct, such as habits and instincts. Aliefs simply do not constitute a legitimate psychological category.Aristotle, 1998, NICOMACHEAN ETHICS; BenYami H, 1997, PHILOS QUART, V47, P84, DOI 10.1111-1467-9213.00049; Damasio A., 1994, DESCARTES ERROR EMOT; DEIGH J, 1994, ETHICS, V104, P824, DOI 10.1086-293657; DESOUSA R, 1971, REV METAPHYS, V35, P52; Gendler Tamar Szabo, 2007, MIDWEST STUD PHILOS, V31, P68, DOI 10.1111-j.1475-4975.2007.00154.x; GENDLER TS, 2008, J PHILOS, V105, P643; Gendler TS, 2008, MIND LANG, V23, P552, DOI 10.1111-j.1468-0017.2008.00352.x; Gilbert DT, 1999, DUAL-PROCESS THEORIES IN SOCIAL PSYCHOLOGY, P3; Greene JD, 2001, SCIENCE, V293, P2105, DOI 10.1126-science.1062872; Hume David, 1978, TREATISE HUMAN NATUR; Koenigs M, 2007, NATURE, V446, P908, DOI 10.1038-nature05631; Pascal B., 1958, PENSEES; Plato, 1992, REPUBLIC; Plato, 1998, PHAEDRUS; Thagard P, 2006, DIALOGUE-CAN PHILOS, V45, P151; Thomson Judith Jarvis, 1985, YALE LAW J, V94, P1396; VELLEMAN J. D., 2000, POSSIBILITY PRACTICA, P24422
The organic carbon isotopic and paleontological record across the Triassic-Jurassic boundary at the candidate GSSP section at Ferguson Hill, Muller Canyon, Nevada, USA
No full textWe present new litho-, bio-, and chemostratigraphic data from the Triassic–Jurassic (T–J) boundary section at Ferguson Hill (Muller Canyon), Nevada, USA. This section is a candidate for the base of the Hettangian Stage and thus the T–J boundary. Our measurements yield a 19 m thickness for the Muller Canyon Member of the Gabbs Formation. We recognize the Triassic–Jurassic boundary using the first appearance of Agerchlamys, and place it 9.6 m above the boundary between the Muller Canyon Member and the subjacent Mount Hyatt Member, with the first occurrence of the ammonite Psiloceras tilmanni occurring 0.9 m above this. Our organic carbon isotope record from this section shows two excursions toward lighter values, one at the T–J boundary, and the second in the lower parts of the Jurassic Sunrise Formation. These results are significantly different from a prior report on light stable isotopes from this section
Nerve injury induces a rapid efflux of nitric oxide (NO) detected with a novel NO microsensor
No full textAn early step in repair of the leech CNS is the appearance of endothelial nitric oxide synthase (eNOS) immunoreactivity and NOS activity, but coincident generation of NO at the lesion after injury has not been shown. This is important because NO can regulate microglial cell motility and axon growth. Indirect measurement of NO with the standard citrulline assay demonstrated that NO was generated within 30 min after nerve cord injury. A polarographic NO-selective self-referencing microelectrode that measures NO flux noninvasively was developed to obtain higher spatial and temporal resolution. With this probe, it was possible to demonstrate that immediately after the leech CNS was injured, NO left the lesion with a mean peak efflux of 803 +/- 99 fmol NO cm(-2) sec(-1). NO efflux exponentially declined to a constant value, as described through the equation f(t) = y(o) + ae(-t/tau), with tau = 117 +/- 30 sec. The constant y(o) = 15.8 +/- 4.5 fmol cm(-2) represents a sustained efflux of NO. Approximately 200 pmol NO cm(-2) is produced at the lesion (n = 8). Thus, injury activates eNOS already present in the CNS and precedes the accumulation of microglia at the lesion, consistent with the hypothesis that NO acts to stop the migrating microglia at the lesion site
The development of the rotary hydraulic pressure machine
No full textThere currently exists a demand for economical hydro-electric machinery that operates at low heads and moderate flows; sites where the drop from a higher water level to a lower one is quite small, in the order of 1-3m, with flows between 5m3/s and 15m3/s. The economics which determine a machine’s viability are a function of its size and complexity, its efficiency characteristics and its power output. The author believes that the most promising route lies with the Rotary Hydraulic Pressure Machine (RHPM), a concept developed from the Staudruckmaschine (SDM) by Brinnich (2001). This paper analyses the SDM in detail using scale model tests. These tests found that the SDM had many deficiencies resulting in unnecessarily low efficiencies and flow capacity, which is the volume of water which the wheel can process per second per metre width. The scale tests also aided the development of a new detailed theory of operation for wheels operated by hydraulic pressure. Significant modifications are then proposed for the SDM to address its deficiencies. These revise its channel design, blade shape, and support structure. The result is effectively a new machine, the RHPM, which is expected to have a 20% higher efficiency, greater flow capacity and smoother operation than the SDM. The RHPM can be built at any site; however it is especially suitable for incorporation into existing weir structures with minimal modifications being required to the weir structure itself. Furthermore, the RHPM is unlike most conventional rotodynamic machines as it is symmetrical and therefore fully reversible. This property means it also has potential application in tidal flow environments
Measurement of the time-dependent CP asymmetry in B0 -> J/ψ KS0 decays
No full textThis Letter reports a measurement of the CP violation observables SJ/ψK0S and CJ/ψK0S in the decay channel B0→J/ψK0S performed with 1.0 fb−1 of pp collisions at s√=7 TeV collected by the LHCb experiment. The fit to the data yields SJ/ψK0S=0.73±0.07(stat)±0.04(syst) and CJ/ψK0S=0.03±0.09(stat)±0.01(syst). Both values are consistent with the current world averages and within
expectations from the Standard Model
The Quest for Citations: Drivers of Article Impact
No full textWhy do some articles become building blocks for future scholars, while many others remain unnoticed? We aim to answer this question by contrasting, synthesizing and simultaneously testing three scientometric perspectives – universalism, social constructivism and presentation – on the influence of article and author characteristics on article citations. To do so, we study all articles published in a sample of five major journals in marketing from 1990 to 2002 that are central to the discipline. We count the number of citations each of these articles has received and regress this count on an extensive set of characteristics of the article (i.e. article quality, article domain, title length, the use of attention grabbers and expositional clarity), and the author (i.e. author visibility and author personal promotion). We find that the number of citations an article in the marketing discipline receives, depends upon “what one says†(quality and domain), on “who says it†(author visibility and personal promotion) and not so much on “how one says it†(title length, the use of attention grabbers, and expositional clarity). Our insights contribute to the marketing literature and are relevant to scientific stakeholders, such as the management of scientific journals and individual academic scholars, as they strive to maximize citations. They are also relevant to marketing practitioners. They inform practitioners on characteristics of the academic journals in marketing and their relevance to decisions they face. On the other hand, they also raise challenges towards making our journals accessible and relevant to marketing practitioners: (1) authors visible to academics are not necessarily visible to practitioners; (2) the readability of an article may hurt academic credibility and impact, while it may be instrumental in influencing practitioners; (3) it remains questionable whether articles that academics assess to be of high quality are also managerially relevant.Impact;Citation Analysis;Referencing;Scientometrics;Cite
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The effects of the aging of X-rayed male germ cells upon the frequency of sex-linked lethals in Drosophila melanogaster
No full textAmong the problems brought forth by Muller's discovery (1926-'27) of the production of gene-mutations and chromosome abnormalities by X-rays, was the question of the relative genetic effectiveness of the rays when applied at different stages of the germ cell history, and the related question of the possible influence of aging the mature germ cells, upon the production or detection of these variations. Conclusive data regarding both these questions in so far as they concern sex-linked lethal changes in the germ cells of the adult male Drosophila, have been secured by the present author, in a series of experiments conducted during the past sixteen months in the genetics laboratory of the University of TexasCellular and Molecular Biolog
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