656 research outputs found
The Role Of Technology and Innovation In The Framework Of The Information Society
No full textThe literature on the information society indicates that it is a still-developing field of research. It can be explained by the lack of consensus on basic definitions and research methods. There are also different judgments on the importance and the significance of the information society. Some social scientists write about a change of era, others emphasize parallelism with the past. There are some authors who expect that the information society will solve the problems of social inequalities, poverty and unemployment, while others blame it on the widening social gap between the information haves and have-nots. Various models of the information society have been developed so far and they are so different from country to country that it would be rather unwise to look for a single, all-encompassing definition. In our time a number of profound socio-economic changes are underway. Almost every field of our life is affected by the different phenomena of globalization, beside the growing role of the individual; another important characteristic of this process is the development of an organizing principle based on the free creation, distribution, access and use of knowledge and information. The 1990s and the 21st century is undoubtedly characterized by the world of the information society (as a form of the post-industrial society), which represents a different quality compared to the previous ones. The application of these theories and schools on ICT is problematic in many respects. First, as we stated above, there is not a single, widely used paradigm which has synthesized the various schools and theories dealing with technology and society. Second, these fragmented approaches do not have a fully-fledged mode of application to the relationship of ICT and (information) society. Third, SCOT, ANT, the evolutionary- or the systems approach to the history of technology – when dealing with information society – does not take into account the results of approaches (such as information science or information systems literature or social informatics, information management and knowledge management, communication and media studies) studying the very essence of the information age: information, communication and knowledge. The list of unnoticed or partially incorporated sciences, which focuses on the role of ICT in human information processing and other cognitive activities, is much longer
Analysis of Shipley Microposit Remover 1165 and AZ P4620 Photoresist waste disposal for Company XYZ
No full textPlan BCompany XYZ is a company that processes semiconductor wafers. In their process, AZ® P4620 photoresist, an organic compound, is removed by Shipley Microposit Remover 1165, an organic solvent. When this occurs they produce a waste that cannot be disposed into a city’s water system. An analysis was conducted to determine the methods that could be used to treat the waste, recover the solvent and eliminate the use of organic solvents for photoresist stripping. Also the main components of Shipley Microposit Remover 1165 and AZ® P4620 Photoresist were analyzed for different health effects they might attribute for
The technique of influx of consciousness and internal monologue in the story book "bu böyledir" (this is so) of Mustafa Kutlu
No full textEdebi eserlerde duygu ve dü ünceler farkl anlat m teknikleriyle okura ula t r l r. Her anlat m yöntemi sanatç ya de i ik ifade imkanlar sunar. Bilinç ak ve iç monolog tekni i ile yazar, söylemek istediklerini roman veya hikaye ki ileri vas tas yla ifade eder. Bu tekniklerle yap lan anlat mlarda, okuyucu arac s z bir ekilde olay ki ilerini izledi i için daha inand r c bir edebi metinle iç içe oldu unu dü ünür. Hikaye yazar , bu yöntemlerle okurun metin üzerinde dü ünmesini, ça r mlarla me gul olmas n , metni tamamlama sürecine dahil olmas n sa lar. Anlat c n n aradan çekildi i, anlat ma çok az müdahil oldu u bu anlat m tekniklerinde az sözle çok ey ifade etme hedefi vard r. Okuyucu, yazar n anlatmak istediklerini iirsel bir anlat m içinden alarak kavramaya çal r. Sembollerle imgelerle ve ça r mlarla zenginle tirilmi bir anlat m elde etmek için bu tür tekniklerin kullan ld anla l r. Bu makalede anlat m tekniklerinden bilinç ak ve iç monolog tekniklerinin anlat ma katt özellikler ve yazar n bu teknikleri seçme sebeplerinin neler olabilece i üzerinde durulmu tur.In literary works, feelings and thoughts are conveyed to readers in different techniques of expression, each of which provides an artist with the possibility of different statements. With the technique of stream of conscience and internal monologue, the author expresses whatever he or she wants to say through the characters in his/her book. In expressions with such a technique, the reader comes to think that he or she is faced with a more convincing literary work, because the reader follows the characters without an intermediary help. The story writer enables the reader to ponder about the text, be busy with associations as well as to get involved in the process of the completion of the text. Such techniques of expression in which the story-teller plays very little intermediary role in expression and leave the reader all by himself aim to express much with few words. The reader tries to comprehend whatever the writer wishes to say from within a poetical expression. It becomes clear that such techniques are used to produce an expression made rich with symbols, images and associations. This article deals with what characteristics are provided by such techniques as the stream of conscience and internal monologue, techniques of expression, for the expression as well as with the reasons why the writer has chosen these techniques
Revealing the history of sheep domestication using retrovirus integrations
No full textThe domestication of livestock represented a crucial step in human history. By using endogenous retroviruses as genetic markers, we found that sheep differentiated on the basis of their "retrotype" and morphological traits dispersed across Eurasia and Africa via separate migratory episodes. Relicts of the first migrations include the Mouflon, as well as breeds previously recognized as "primitive" on the basis of their morphology, such as the Orkney, Soay, and the Nordic short-tailed sheep now confined to the periphery of northwest Europe. A later migratory episode, involving sheep with improved production traits, shaped the great majority of present-day breeds. The ability to differentiate genetically primitive sheep from more modern breeds provides valuable insights into the history of sheep domestication
Modelling the magnetic activity and filtering radial velocity curves of young Suns : the weak-line T Tauri star LkCa 4
No full textSGG acknowledges support from the Science & Technology Facilities Council (STFC) via an Ernest Rutherford Fellowship [ST/J003255/1]. SHPA acknowledges financial support from CNPq, CAPES and Fapemig.We report results of a spectropolarimetric and photometric monitoring of the weak-line T Tauri star LkCa 4 within the Magnetic Topologies of Young Stars and the Survival of close-in giant Exoplanets (MaTYSSE) programme, involving ESPaDOnS at the Canada–France–Hawaii Telescope. Despite an age of only 2 Myr and a similarity with prototypical classical T Tauri stars, LkCa 4 shows no evidence for accretion and probes an interesting transition stage for star and planet formation. Large profile distortions and Zeeman signatures are detected in the unpolarized and circularly polarized lines of LkCa 4 using Least-Squares Deconvolution (LSD), indicating the presence of brightness inhomogeneities and magnetic fields at the surface of LkCa 4. Using tomographic imaging, we reconstruct brightness and magnetic maps of LkCa 4 from sets of unpolarized and circularly polarized LSD profiles. The large-scale field is strong and mainly axisymmetric, featuring a ≃2 kG poloidal component and a ≃1 kG toroidal component encircling the star at equatorial latitudes – the latter making LkCa 4 markedly different from classical T Tauri stars of similar mass and age. The brightness map includes a dark spot overlapping the magnetic pole and a bright region at mid-latitudes – providing a good match to the contemporaneous photometry. We also find that differential rotation at the surface of LkCa 4 is small, typically ≃5.5 times weaker than that of the Sun, and compatible with solid-body rotation. Using our tomographic modelling, we are able to filter out the activity jitter in the radial velocity curve of LkCa 4 (of full amplitude 4.3 km s−1) down to an rms precision of 0.055 km s−1. Looking for hot Jupiters around young Sun-like stars thus appears feasible, even though we find no evidence for such planets around LkCa 4.Peer reviewe
A Coupled ABM-GIS Model of Small-Scale Farming
No full textPoster presented at the North American Association for Computational Social and Organizational Sciences Meeting in Tempe, AZ
A zenei hallási képességek fejlődése és összefüggése néhány alapkészséggel 4-8 éves kor között
No full textInformation in T-bill Auction Bid Distributions
No full textIn this paper UK data is used to compare two potential sources of information regarding market uncertainty about future short interest rates. One is the so-called risk-neutral density function (RND) derived from interest rate option prices, the other is the distribution of bids submitted to an auction of short-term Treasury bills. More specifically, time series of RND standard deviations and auction bid standard deviations are compared. The results suggest that in some periods the auction bid standard deviations co-moved with those of the RNDs. Thus, in principle, auction bid standard deviations may be useful to get a picture of market uncertainty about future short rates even in the absence of well-developed interest rate options markets. In the Supplement, encouraged by the above results, the author uses Hungarian T-bill auction data to check whether auction bid dispersion measures in Hungary make any sense as indicators of market uncertainty about future interest rates. Lacking any RND data for this country, this can only be done in indirect ways. These include looking at the correlations of auction dispersion measures of different T-bill maturities, comparing the time series of these measures and bid-ask spreads (another possible indicator of uncertainty) and conducting an intuitive consistency check for a certain time period.
Experimental Study Of The Excess Molar Volumes Of Binary And Ternary Mixtures Containing Water + (1,2-ethanediol, Or 1,2-propanediol, Or 1,3-propanediol, Or 1,2-butanediol) + (1-n-butyl-3-methylimidazolium Bromide) At 298.15 K And Atmospheric Pressure
No full textDensities of binary and ternary mixtures containing water + (1,2-ethanediol or 1,2-propanediol or 1,3-propanediol or 1,2-butanediol) + (1-n-butyl-3- methylimidazolium bromide at 0.01 mole fraction) at 298.15 K and atmospheric pressure have been determined as a function of composition using an Anton Paar densimeter (Model DMA 55). Excess molar volumes (V E m) were calculated. The values are negative for all mixtures over the whole composition range. © Springer Science+Business Media, LLC 2011.401118631873Gaillon, L., Sirieix-Plenet, J., Letellier, P., Volumetric study of binary solvent mixtures constituted by amphiphilic ionic liquids at room temperature (1-alkyl-3-methylimidazolium bromide) and water (2004) Journal of Solution Chemistry, 33 (11), pp. 1333-1347. , DOI 10.1007/s10953-004-1045-0Gardas, R.L., Oswal, S.L., Volumetric and transport properties of ternary mixtures containing 1-butanol or 1-pentanol, triethylamine and cyclohexane at 303.15 K: Experimental data, correlation and prediction by the ERAS model (2008) J. Solution Chem., 37, pp. 1449-1470George, J., Sastry, N.V., Densities, dynamic viscosities, speeds of sound, and relative permittivities for water + alkanediols (propane-1,2- and -1,3-diol and butane-1,2-, -1,3-, -1,4-, and -2,3-diol) at different temperatures (2003) J. Chem. Eng. Data, 48, pp. 1529-1539Ulbig, P., Geyer, H., Gornert, M., Measurement of densities and excess molar volumes for (1,2-ethanediol, or 1,2-propanediol, or 1,2-butanediol + water) at the temperatures (278.15, 288.15, 298.15, 308.15, and 318.15) K and for (2,3-butanediol + water) at the temperatures (308.15, 313.15, and 318.15) K (2000) Journal of Chemical Thermodynamics, 32 (12), pp. 1585-1596. , DOI 10.1006/jcht.2000.0679Geyer, H., Ulbig, P., Görnert, M., Susanto, A., Measurement of densities and excess molar volumes for 1,2-propanediol, or 1,2-butanediol + water) at the temperatures 288.15, 298.15, and 308.15) K and at the pressures (0.1, 20, 40, and 60) MPa (2001) J. Chem. Thermodyn., 33, pp. 987-997Hawrylak, B., Gracie, K., Palepu, R., Thermodynamic properties of binary mixtures of butanediols with water (1998) Journal of Solution Chemistry, 27 (1), pp. 17-31Li, Q.-S., Tian, Y.-M., Wang, S., Densities and excess molar volumes for binary mixtures of 1,4-butanediol + 1,2-propanediol, + 1,3-propanediol, and + ethane-1,2-diol from (293.15 to 328.15) K (2008) Journal of Chemical and Engineering Data, 53 (1), pp. 271-274. , DOI 10.1021/je700499dLide, D.R., (2005) Handbook of Chemistry and Physics, , CRC Press, Boca RatonRedlich, O., Kister, A.T., Algebraic representation of thermodynamic properties and the classification of solutions (1948) Ind. Eng. Chem., 40, pp. 345-348Romero, C.M., Paez, M.S., Perez, D., A comparative study of the volumetric properties of dilute aqueous solutions of 1-propanol, 1,2-propanediol, 1,3-propanediol, and 1,2,3-propanetriol at various temperatures (2008) J. Chem. Thermodyn., 40, pp. 1645-1653Torres, R.B., Francesconi, A.Z., Volpe, P.L.O., Experimental study and modelling using the ERAS-Model of the excess molar volume of acetonitrile-alkanol mixtures at different temperatures and atmospheric pressure (2003) Fluid Phase Equilibria, 210 (2), pp. 287-306. , DOI 10.1016/S0378-3812(03)00167-5Tôrres, R.B., Francesconi, A.Z., Volpe, P.L.O., Volumetric properties of binary mixtures of acetonitrile and chloroalkanes at 25 °c and atmospheric pressure (2003) J. Solution Chem., 32, pp. 417-434Tôrres, R.B., Pina, C.G., Francesconi, A.Z., Application of the Prigogine-Flory-Patterson theory to excess molar volume of binary mixtures of acetonitrile with 1-alkanols (2003) J. Mol. Liq., 107, pp. 127-139Tôrres, R.B., Francesconi, A.Z., Volpe, P.L.O., Thermodynamics of binary liquid mixtures: Application of the Prigogine-Flory-Patterson theory to excess molar volumes of acetonitrile + 1-alkanols systems (2004) J. Mol. Liq., 110, pp. 81-85Vercher, E., Solsona, S., Vazquez, M.I., Martinez-Andreu, A., Apparent molar volumes of lithium chloride in 1-propanol + water in the temperature range from 288.15 to 318.15 K (2003) Fluid Phase Equilibria, 209 (1-2), pp. 95-111. , DOI 10.1016/S0378-3812(03)00077-3Zafarani-Moattar, M.T., Shekaari, H., Apparent molar volume and isentropic compressibility of ionic liquid 1-butyl-3-methylimidazolium bromide in water, methanol, and ethanol at T = (298.15 to 318.15) K (2005) J. Chem. Thermodyn., 37, pp. 1029-1035Zorebski, E., Waligora, A., Densities, excess molar volumes, and isobaric thermal expansibilities for 1,2-ethanediol + 1-butanol, or 1-hexanol, or 1-octanol in the temperature range from (293.15 to 313.15) K (2008) Journal of Chemical and Engineering Data, 53 (2), pp. 591-595. , DOI 10.1021/je700580
From star‐forming spirals to passive spheroids: integral field spectroscopy of E+A galaxies
No full textWe present three‐dimensional spectroscopy of 11 E+A galaxies at z = 0.06–0.12. These galaxies were selected for their strong Hδ absorption but weak (or non‐existent) [O ii ] λ3727 and Hα emission. This selection suggests that a recent burst of star formation was triggered but subsequently abruptly ended. We probe the spatial and spectral properties of both the young (≲1 Gyr) and old (≳few Gyr) stellar populations. Using the Hδ equivalent widths we estimate that the burst masses must have been at least 10 per cent by mass ( M burst ≳ 10 10 M ⊙ ), which is also consistent with the star formation history inferred from the broad‐band spectral energy distributions. On average the A stars cover ∼33 per cent of the galaxy image, extending over 2–15 kpc 2 , indicating that the characteristic E+A signature is a property of the galaxy as a whole and not due to a heterogeneous mixture of populations. In approximately half of the sample, we find that the A stars, nebular emission and continuum emission are not co‐located, suggesting that the newest stars are forming in a different place than those that formed ≲1 Gyr ago, and that recent star formation has occurred in regions distinct from the oldest stellar populations. At least 10 of the galaxies (91 per cent) have dynamics that class them as ‘fast rotators’ with magnitudes, v /σ, λ R and bulge‐to‐total (B/T) ratio comparable to local, representative ellipticals and S0s. We also find a correlation between the spatial extent of the A stars and the dynamical state of the galaxy such that the fastest rotators tend to have the most compact A star populations, providing new constraints on models that aim to explain the transformation of later type galaxies into early types. Finally, we show that there are no obvious differences between the line extents and kinematics of E+A galaxies detected in the radio (active galactic nucleus, AGN) compared to non‐radio sources, suggesting that AGN feedback does not play a dramatic role in defining their properties, and/or that its effects are short.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90164/1/j.1365-2966.2011.20082.x.pd
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