1,355 research outputs found
When would the intellectual background make a difference? or professors have been important for a long time, but what kind of professors?
Medieval accounting history affords a fertile ground for studying the impact of the intellectual background on the development of accounting itself. In such a study, four hypotheses can be proposed: that the intellectual background affects accounting only when it reaches out towards accounting practice; that this outreach occurs only when intellectuals have direct, personal contact with accounting practice; that developments in law, philosophy, and related humanities are important; and that developments in mathematics are not important
Introduction of Arabic numerals in European accounting
The general adoption of Arabic numerals by European bookkeepers occurred at least five hundred years after their introduction to the scholarly world. The early availability yet late adoption of this numeration is shown to be due to several factors, not least to interplay between the culture and cultural conservatism of clerks and the educational and intellectual changes of the early Italian Renaissance
The Internet, Not a Panacea: Distance Education in 2001: Working Paper Series--02-22
This paper directs attention to the conjunction among the hypertextural nature of the World Wide Web; recent literature and technical development in knowledge management; and the use of the World Wide Web for distance education, particularly in marketing contexts. We define and argue for the use of text-logging Internet applications based on HTML platforms as a significant component of university-level distance education
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Preparation, characterization and in vitro response of bioactive coatings on polyether ether ketone.
Polyether ether ketone (PEEK) is a highly heat-resistant thermoplastic with excellent strength and elastic modulus similar to human bone, making it an attractive material for orthopedic implants. However, the hydrophobic surface of PEEK implants induces fibrous encapsulation which is unfavorable for stable implant anchorage. In this study, PEEK was coated via ion-beam-assisted deposition (IBAD) using a two-layer design of yttria-stabilized zirconia (YSZ) as a heat-protection layer, and hydroxyapatite (HA) as a top layer to improve osseointegration. Microstructural analysis of the coatings showed a dense, uniform columnar grain structure in the YSZ layer and no delamination from the substrate. The HA layer was found to be amorphous and free of porosities in its as-deposited state. Subsequent heat treatment via microwave energy followed by autoclaving crystallized the HA layer, confirmed by SEM and XRD analysis. An in vitro study using MC3T3 preosteoblast cells showed improved bioactivity in heat-treated sample groups. Cell proliferation, differentiation, and mineralization were analyzed by MTT assay and DNA content, osteocalcin expression, and Alizarin Red S (AR-S) content, respectively. Initial cell growth was increased, and osteogenic maturation and mineralization were accelerated most on coatings that underwent a combined microwave and autoclave heat treatment process as compared to uncoated PEEK and amorphous HA surfaces. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 560-567, 2017.Funded by National Institute of Dental and Craniofacial Research of the National Institutes of Health. Grant Number: R21DE022925This is the author accepted manuscript. The final version is available from Wiley via http://dx.doi.org/10.1002/jbm.b.3357
The reality of construction
Stemming from a reflexion on the distrust or denigration of images that characterizes many
philosophical or religious doctrines, from Moses' and Plato's condemnations, to empirist doctrines
(Bacon, Locke, Hobbes, Hume), this paper proposes a general theoretical argument about the
nature of communication and discourse about it. The argument is motivated by some issues in
media studies, but is not limited to them. In fact, we suggest that the media, rather than ruining
communication (via the manipulation of images), reveal something profound about communication
that was easier to leave implicit in earlier times. Thus they reactivate some of the fears that were
present in various iconodastic traditions.
What is being revealed is closely related to the well-known thesis of the social construction of
reality. Our argument, here, is that this constructed character does not entail any need for
generalized scepticism, and does not call for a hermeneutics of suspicion intent on unmasking
manipulation or artifice. In fact, the social constructedness of social phenomena is in no way
antithetic to their reality. If one recognizes that there is a "construction of reality", one can
recognize as well that there is a reality to the construction, and finally admit with Lewis Mumford
that... "all that can be called 'real' is the outcome of a multitude of sustained transactions and
interrelations between the human organism and the environment".A partir d'une réflexion sur la méfiance ou la réprobation à l'égard des images que manifestent
plusieurs traditions philosophiques ou religieuse, notamment la Loi mosaïque, la théorie platonicienne,
et la tradition des empiristes anglais Bacon, Locke, Hobbes, Hume, cet article propose
une analyse plus générale de la nature de la communication et des discours qui s'y rapportent.
Cette analyse s'appuie sur quelques exemples empruntés au domaine des médias, mais elle ne
porte pas exclusivement sur ce domaine. Elle vise Ă dĂ©montrer que la production d'images Ă
laquelle se livrent les médias, loin d'éliminer la possibilité d'une communication véritable, révÚle
en fait certaines des caractéristiques propres à toute communication. Ces caractéristiques étaient
longtemps restées implicites. Avec l'événement des médias, elles émergent au grand jour,
réactivant les craintes qui sous-tendent les grandes traditions iconoclastes. Ces caractéristiques
renvoient à la thÚse bien connue d'une construction sociale de la réalité. La position défendue ici
est que, loin de devoir mener à un scepticisme généralisé, ou à une herméneutique du soupçon
avant tout soucieuse de démasquer l'artifice ou la manipulation, le caractÚre construit des
phénomÚnes sociaux ne s'oppose en rien à leur réalité. On peut alors parler non seulement d'une
« construction de la réalité » mais aussi d'une « réalité des constructions », et soutenir avec Lewis
Mumford, que ce qu'on baptise le « réel », n'est rien d'autre que le « résultat d'une multitude de
transactions et d'échanges continus entre l'organisme humain et son environnement »
Home Vegetable Gardening in Kentucky
Before You Begin
Every aspiring gardener should follow seven steps to have a successful gardening season: Plan your garden on paper before you begin. Select a good gardening site that is: a. in full sun for at least eight hours each day, b. relatively level, c. wellâdrained, d. close to a water source, e. not shaded. Prepare the soil properly and add fertilizer and lime according to soil test recommendations. Plan only as large a garden as you can easily maintain. Beginning gardeners often overplant, and then they fail because they cannot keep up with the tasks required. Weeds and pests must be controlled, water applied when needed and harvesting done on time. Vegetables harvested at their peak are tasty, but when left on the plants too long, the flavor is simply not there. Grow vegetables that will produce the maximum amount of food in the space available. Plant during the correct season for the crop. Choose varieties recommended for your area. Harvest vegetables at their proper stage of maturity. Store them promptly and properly if you do not use them immediately
Observation of an Excited Bc+ State
Using pp collision data corresponding to an integrated luminosity of 8.5 fb-1 recorded by the LHCb experiment at center-of-mass energies of s=7, 8, and 13 TeV, the observation of an excited Bc+ state in the Bc+Ï+Ï- invariant-mass spectrum is reported. The observed peak has a mass of 6841.2±0.6(stat)±0.1(syst)±0.8(Bc+) MeV/c2, where the last uncertainty is due to the limited knowledge of the Bc+ mass. It is consistent with expectations of the Bcâ(2S31)+ state reconstructed without the low-energy photon from the Bcâ(1S31)+âBc+Îł decay following Bcâ(2S31)+âBcâ(1S31)+Ï+Ï-. A second state is seen with a global (local) statistical significance of 2.2Ï (3.2Ï) and a mass of 6872.1±1.3(stat)±0.1(syst)±0.8(Bc+) MeV/c2, and is consistent with the Bc(2S10)+ state. These mass measurements are the most precise to date
Upsilon (1S+2S+3S) production in d+Au and p+p collisions at sqrt(s_NN)=200 GeV and cold-nuclear matter effects
The three Upsilon states, Upsilon(1S+2S+3S), are measured in d+Au and p+p
collisions at sqrt(s_NN)=200 GeV and rapidities 1.2<|y|<2.2 by the PHENIX
experiment at the Relativistic Heavy-Ion Collider. Cross sections for the
inclusive Upsilon(1S+2S+3S) production are obtained. The inclusive yields per
binary collision for d+Au collisions relative to those in p+p collisions
(R_dAu) are found to be 0.62 +/- 0.26 (stat) +/- 0.13 (syst) in the gold-going
direction and 0.91 +/- 0.33 (stat) +/- 0.16 (syst) in the deuteron-going
direction. The measured results are compared to a nuclear-shadowing model,
EPS09 [JHEP 04, 065 (2009)], combined with a final-state breakup cross section,
sigma_br, and compared to lower energy p+A results. We also compare the results
to the PHENIX J/psi results [Phys. Rev. Lett. 107, 142301 (2011)]. The rapidity
dependence of the observed Upsilon suppression is consistent with lower energy
p+A measurements.Comment: 495 authors, 11 pages, 9 figures, 5 tables. Submitted to Phys. Rev.
C. Plain text data tables for the points plotted in figures for this and
previous PHENIX publications are (or will be) publicly available at
http://www.phenix.bnl.gov/papers.htm
Double Spin Asymmetry of Electrons from Heavy Flavor Decays in p+p Collisions at sqrt(s)=200 GeV
We report on the first measurement of double-spin asymmetry, A_LL, of
electrons from the decays of hadrons containing heavy flavor in longitudinally
polarized p+p collisions at sqrt(s)=200 GeV for p_T= 0.5 to 3.0 GeV/c. The
asymmetry was measured at mid-rapidity (|eta|<0.35) with the PHENIX detector at
the Relativistic Heavy Ion Collider. The measured asymmetries are consistent
with zero within the statistical errors. We obtained a constraint for the
polarized gluon distribution in the proton of |Delta g/g(log{_10}x=
-1.6^+0.5_-0.4, {mu}=m_T^c)|^2 < 0.033 (1 sigma), based on a leading-order
perturbative-quantum-chromodynamics model, using the measured asymmetry.Comment: 385 authors, 17 pages, 15 figures, 5 tables. Submitted to Phys. Rev.
D. Plain text data tables for the points plotted in figures for this and
previous PHENIX publications are (or will be) publicly available at
http://www.phenix.bnl.gov/papers.htm
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