3,048 research outputs found
Analysing interviewer call record data to understand the process leading to cooperation or refusal
No full textAnalysing the process leading to cooperation or refusal using call record data: A multilevel multinomial modelling approach
No full textIn recent years, survey agencies have started to collect detailed call record data, including information on the timing and outcome of each interviewer call to a household. In interviewbased household surveys, effective interviewer calling behaviours are critical in achieving cooperation and reducing the likelihood of refusal. This paper aims to analyze interviewer call record data to inform the process leading to cooperation or refusal in face-to-face surveys. Of particular interest are the influences on the outcome of a call of interactions between the interviewer and householder and of time-varying characteristics of the call. A multilevel multinomial logistic regression approach is used in which the different possible outcomes at each call are modelled jointly
Synthesis And Characterization Of Zno And Zno:ga Films And Their Application In Dye-sensitized Solar Cells
No full textHighly crystalline ZnO and Ga-modified zinc oxide (ZnO:Ga) nanoparticles containing 1, 3 and 5 atom% of Ga 3+ were prepared by precipitation method at low temperature. The films were characterized by XRD, BET, XPS and SEM. No evidence of zinc gallate formation (ZnGa 2O 4), even in the samples containing 5 atom% of gallium, was detected by XRD. XPS data revealed that Ga is present into the ZnO matrix as Ga 3+, according to the characteristic binding energies. The particle size decreased as the gallium level was increased as observed by SEM, which might be related to a faster hydrolysis reaction rate. The smaller particle size provided films with higher porosity and surface area, enabling a higher dye loading. When these films were applied to dye-sensitized solar cells (DSSCs) as photoelectrodes, the device based on ZnO:Ga 5 atom% presented an overall conversion efficiency of 6% (at 10 mW cm -2), a three-fold increase compared to the ZnO-based DSSCs under the same conditions. To our knowledge, this is one of the highest efficiencies reported so far for ZnO-based DSSCs. Transient absorption (TAS) study of the photoinduced dynamics of dye-sensitized ZnO:Ga films showed that the higher the gallium content, the higher the amount of dye cation formed, while no significant change on the recombination dynamics was observed. The study indicates that Ga-modification of nanocrystalline ZnO leads to an improvement of photocurrent and overall efficiency in the corresponding device. © 2008 The Royal Society of Chemistry.1114871491O'Regan, B., Gratzel, M., (1991) Nature, 353, p. 737. , -740Kroon, J.M., Bakker, N.J., Smit, H.J.P., Liska, P., Thampi, K.R., Wang, P., Zakeeruddin, S.M., Tulloch, G.E., (2007) Prog. Photovoltaics, 15, p. 1. , -18Ma, T., Akiyama, M., Abe, E., Imai, I., (2005) Nano Lett., 5, p. 2543. , -2547Ko, K.H., Lee, Y.C., Jung, Y.J., (2005) J. Colloid Interface Sci., 283, p. 482. , -487Kakiuchi, K., Hosono, E., Fujihara, S., (2006) J. Photochem. Photobiol., A, 179, p. 81. , -86Keis, K., Magnusson, E., Lindstrom, H., Lindquist, S.-E., Hagfeldt, A., (2002) Sol. Energy Mater. Sol. Cells, 73, p. 51. , -58Horiuchi, H., Katoh, R., Hara, K., Yanagida, M., Murata, S., Arakawa, H., Tachiya, M., (2003) J. Phys. Chem. B, 107, p. 2570. , -2574Katoh, R., Furube, A., Tamaki, Y., Yoshihara, T., Murai, M., Hara, K., Murata, S., Tachiya, M., (2004) J. Photochem. Photobiol., A, 166, p. 69. , -74Keis, K., Vayssieres, L., Rensmo, H., Lindquist, S.-E., Hagfeldt, A., (2001) J. Electrochem. Soc., 148, p. 149. , -A155Rensmo, H., Keis, K., Lindstrom, H., Sodergren, S., Solbrand, A., Hagfeldt, A., Lindquist, S.E., Muhammed, M., (1997) J. Phys. Chem. B, 101, p. 2598. , -2601Minami, T., Sato, H., Nanto, H., Takata, S., (1985) Jpn. J. Appl. Phys., 24, p. 781. , -L784Park, S.-M., Ikegami, T., Ebihara, K., (2006) Thin Solid Films, 513, p. 90. , -94Nonaka, M., Matsushima, S., Mizuno, M., Kobayashi, K., (2002) Chem. Lett., p. 580. , -581Ohkita, H., Cook, S., Ford, T.A., Greenham, N.C., Durrant, J.R., (2006) J. Photochem. Photobiol., A, 182, p. 225. , -230Haque, S.A., Tachibana, Y., Willis, R.L., Moser, J.E., Gratzel, M., Klug, D.R., Durrant, J.R., (2000) J. Phys. Chem. B, 104, p. 538. , -547Haque, S.A., Tachibana, Y., Klug, D.R., Durrant, J.R., (1998) J. Phys. Chem. B, 102, p. 1745. , -1749Gonçalves, A.S., Lima, S.A.M., Davolos, M.R., Antônio, S.G., Paiva-Santos, C.O., (2006) J. Solid State Chem., 179, p. 1330. , -1334Roberts, N., Wang, R.P., Sleight, A.W., Warren, W.W., (1998) Phys. Rev. B, 57, p. 5734Wang, R., Sleight, A.W., Cleary, D., (1996) Chem. Mater., 8, p. 433. , -439Passlack, M., Schubert, E.F., Hobson, W.S., Hong, M., Moriya, N., Chu, S.N.G., Konstadinidis, K., Zydzik, G.J., (1995) J. Appl. Phys., 77, p. 686. , -693Bhosle, V., Tiwari, A., Narayan, J., (2006) J. Appl. Phys., 100, p. 033713. , -033716Nazeeruddin, M.K., Kay, A., Rodicio, I., Humphrybaker, R., Muller, E., Liska, P., Vlachopoulos, N., Gratzel, M., (1993) J. Am. Chem. Soc., 115, p. 6382. , -6390Imai, Y., Watanabe, A., (2005) J. Mater. Sci., 15, p. 743. , -749Willis, R.L., Olson, C., O'Regan, B., Lutz, T., Nelson, J., Durrant, J.R., (2002) J. Phys. Chem. B, 106, p. 7605. , -7613Green, A.N.M., Palomares, E., Haque, S.A., Kroon, J.M., Durrant, J.R., (2005) J. Phys. Chem. B, 109, p. 12525. , -1253
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Financial Summit: J.R. Briggs & Dave Briggs
No full textDave and J.R. Briggs speak on stewardship of finances.
Dave Briggs currently serves as the stewardship director at Central Christian Church of Arizona. Previously he served in a similar role at Willowcreek Church and prior to that was a finance manager for GE for 27 years. He has developed numerous financial seminars and classes and regularly speaks at churches and conferences around the country. Dave and his wife Debbie had two sons attend Taylor and served for three years on the Taylor Parents’ Cabinet.
J.R. Briggs wears a variety of ministry hats. On a local level, he serves as one of the pastors of The Renew Community. He is also the Founder and Director of Kairos Partnerships and Director of Leadership and Congregation Formation for the Ecclesia Network. He is a life coach, consultant, frequent speaker, and author of seven books. He and his wife Megan, along with their two sons Carter and Bennett, live in the Philadelphia area
The effect of turbulence on particle impaction om a cylinder in a cross flow
No full textParticle impaction on a cylinder in a cross flow is investigated with the use of Direct Numerical Simulations (DNS), with a focus on the effect of turbulence on the impaction efficiency. It is found that for particles with Stokes numbers in the boundary stopping mode there is up to ten times more front side impaction for turbulence with a large integral scale, than for a corresponding laminar flow. The back side impaction efficiency is also found to be influenced by the turbulence. The highest back side impaction efficiency is found for turbulence with small integral scales
J.R. Léveillé, 45th Annual ODU Literary Festival
No full textJ. R. Léveillé is a renowned figure in Franco-Manitoban and francophone literature. He is the author of over thirty interdisciplinary works of poetry, fiction, television documentaries and theater. He is included in many anthologies and his work is studied in many Canadian schools. His 2001 novel, The Setting Lake Sun (Le soleil du lac qui se couche) won the Prix Rue-Deschambault prize in 2002 and was selected for the 2020 edition of Le Combat des Livres. Some of his recent works include New York Trip (2003); Pierre Lardon (2011); Poème, Pierre, Prière (Poeme, Rock, Prayer, 2011); L\u27Invocation de Rutebeuf et the Villion (2012); Ganiishomong, ou l\u27extase du temps (2020) and Ex-Nihilo in 2021 with E.D. Blodgett. He was awarded the Manitoba Arts Council\u27s Award of Distinction in 2012
Romans en marge: les trois premières fictions de J.R. Léveillé
No full textLors de la publication des trois premières fictions de J.R. Léveillé: Tombeau (1968), La disparate (1975) et Plage (1984) – qui ont été rééditées dans l’oeuvre intitulée Romans –, la critique littéraire avait souligné le caractère d’avant-garde innovateur du style d’écriture de l’écrivain franco-manitobain. Issu d’un milieu minoritaire, et proposant des textes en marge du mainstream, J.R. Léveillé incarne, à notre avis, l’artiste postmoderne par excellence qui conçoit chaque «projet d’écriture» sous un nouvel angle expérimental. À l’instar de Rimbaud, J.R. Léveillé déploie différentes stratégies pour dérégler non seulement les sens, mais aussi «le sens», ou la cohérence attendue d’un récit. Une étude des procédés mis en oeuvre dans ces trois fictions nous permettra de voir, d’une part, comment le matériau premier du texte, à savoir les mots et les images, est manipulé par l’auteur et quel impact ces manipulations ont sur la cohérence attendue d’un récit. Nous espérons, d’autre part, pouvoir dégager la portée d’une telle écriture qui se renouvelle avec chaque nouveau titre en explorant la richesse de la marge, voire de «l’extrême marge».When the first three fictional works of Franco-Manitoban writer J.R. Léveillé were published (Tombeau, 1968, La disparate, 1975, and Plage, 1984, reissued in a single collection entitled Romans in 1995), literary critics pointed up the innovative, avant-garde character of Léveillé’s writing. J.R. Léveillé, a member of the French-speaking minority who produces writing that keeps resolutely to the fringes, is, in our opinion, the epitome of a post-modern artist, conceiving each new writing project from a new, experimental angle. Like Rimbaud, J.R. Léveillé deploys a variety of strategies to muddle not only the senses, but the meaning, direction, and coherency expected from a story. By examining the processes used in these three works of fiction, we will show, first of all, how the raw materials of the text—namely, the words and the images—are handled by the author, along with the impact that this handling has on the coherency expected from the story. Subsequently, we hope to flesh out the scope of such writing, which redefines itself with each new title, exploring the rich territory of the fringes, nay, the outer limits of the fringes
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