Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2005

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 1261 - 1290 of 22998

Full-Text Articles in Entire DC Network

Electrochemical Controllable Preparation Of Hydroxyapatite Coating With Different Morphologies And Preliminary In Vitro Tests, Hai-Yan Shi, Ren Hu, Chang-Jian Lin Nov 2005

Electrochemical Controllable Preparation Of Hydroxyapatite Coating With Different Morphologies And Preliminary In Vitro Tests, Hai-Yan Shi, Ren Hu, Chang-Jian Lin

Journal of Electrochemistry

The Controllable electrochemical deposition has been developed to prepare the hydroxyapatite(HA) coatings on Ti substrate with different morphologies and structures. Three kinds of typical topography of HA coatings, i.e. standing-up, flower and ordered porous structures have been obtained. The XRD and FTIR results demonstrate high crystallinity of the coating and exclusion of other forms of calcium phosphates. In vitro tests reveal that the biological property is largely dependent on the structure and morphology of the HA coating. It has been found that all pure HA coating show good biocompatibilities, while only the HA coating with ordered porous structures exhibits best …

Go to article

Conference Dec. 2-3 To Focus On Visions Of Gulf Coast Rebuilding, Rebecca Lauck Cleary Nov 2005

Conference Dec. 2-3 To Focus On Visions Of Gulf Coast Rebuilding, Rebecca Lauck Cleary

University of Mississippi News

OXFORD, Miss. - Although the waters from Hurricane Katrina have receded, damage to the Gulf Coast presents myriad challenges toward economic and social recovery.

Go to article

Ipsative Score Distortion On Affinity 2.0, Alec J. Brown Nov 2005

Ipsative Score Distortion On Affinity 2.0, Alec J. Brown

Theses and Dissertations

This study investigated distortion that occurs when raw scores are converted to ipsative scores on Affinity 2.0, a relatively new instrument for assessing sexual interest. Using a sample of 146 non-offending, heterosexual females, this study examined the characteristics of distorted ipsative score profiles and attempted to develop an algorithm to identify such distortions. A method was developed for defining distortion objectively. Of the 146 profiles,125 were found to contain some degree of distortion. Several hypotheses were formulated as to variables that might be related to distortion. These relationships were examined using Pearson Product Moment Correlations. Several statistically significant, but weak, …

Go to article

University Of Northern Iowa Faculty Senate Meeting Minutes, November 28, 2005, University Of Northern Iowa. Faculty Senate. Nov 2005

University Of Northern Iowa Faculty Senate Meeting Minutes, November 28, 2005, University Of Northern Iowa. Faculty Senate.

Documents - Faculty Senate

Meeting minutes from the Faculty Senate of the University of Northern Iowa.

Go to article

Electrochemical Properties Of Aloe Emodin In Aqueous And Nonaqueous Solvents, Li-Ying Huang, Zhong-Cheng Wang, Li-Min Lai, Xin-Hua Lin, Wei Chen Nov 2005

Electrochemical Properties Of Aloe Emodin In Aqueous And Nonaqueous Solvents, Li-Ying Huang, Zhong-Cheng Wang, Li-Min Lai, Xin-Hua Lin, Wei Chen

Journal of Electrochemistry

Electrochemical properties of Aloe emodin in aqueous and nonaqueous solvents of DMSO were studied by cyclic voltammetry and linear sweep voltammetry at a platinum electode. A pairs of currents on the voltammogram may be attributed to a quasi-reversible-one-electron transfer in HAc-NaAc and DMSO, the peak potential in DMSO was found to move more negatively compared with that in HAc-NaAc. A new method for Aloe emodin determination is described. The peak current is proportional to the concentration of Aloe emodin over the ranges of 1.0×10-5~6.0×10-4 mol/L. The electrochemical properties of Aloe emodin were related to solvents.

Go to article

A Study Of Three Corrosion Inhibitors For Reinforcing Steel In Sps Solution By Electrochemical Methods, Bing Zhao, Rong-Gui Du, Chang-Jian Lin Nov 2005

A Study Of Three Corrosion Inhibitors For Reinforcing Steel In Sps Solution By Electrochemical Methods, Bing Zhao, Rong-Gui Du, Chang-Jian Lin

Journal of Electrochemistry

Some electrochemical techniques such as linear polarization,electrochemical noise and EIS have been employedto study the inhibition behavior of N-lauroyl sarcosinate, β-sodium glycerophosphate and D-sodium gluconate for the reinforcing steel immersed in simulated concrete pore solution(SPS) with NaCl addition.The results show that D-sodium gluconatehas an obvious inhibitive effect for the reinforcing steelin containing Cl- SPS solution. It has been proposed that the corrosion inhibition of D-sodium gluconate is due to its competitive adsorption and precipitation on steel surface in the simulated concrete environment.

Go to article

The High Temperature Corrosion Of 2205 Duplex Stainless Steel With Nacl Deposit, Fu-Fu Peng, Chaur-Jeng Wang, Yu-Chang Lin Nov 2005

The High Temperature Corrosion Of 2205 Duplex Stainless Steel With Nacl Deposit, Fu-Fu Peng, Chaur-Jeng Wang, Yu-Chang Lin

Journal of Electrochemistry

The objective of this study was to figure out the hot corrosion behavior of 2205 duplex stainless steel (2205 DSS) within the temperature ranges from 550 to 850℃ in the static air condition with 2 mg/cm2 NaCl deposit, and in the air atmosphere condition with a constant flow rate of 500 vppm NaCl(g), respectively. Experimental results show that the hot corrosion kinetics met the parabolic rate law and the corrosion rate increased constantly with increasing temperature. The scales formed included Fe2O3/Fe3O4/Cr2O3 and FeCr2O4 …

Go to article

A Study Of Overcharge Characteristic Of Lithium-Ion Cells, Jing Pang, Shi-Gang Lu, Sha Liu Nov 2005

A Study Of Overcharge Characteristic Of Lithium-Ion Cells, Jing Pang, Shi-Gang Lu, Sha Liu

Journal of Electrochemistry

The overcharge characteristics and effect factors of lithium-ion cells containing LiMn2O4 cathodes were studied in detail. Overcharge testing of Lithium-ion cells with a systematic variation in the cell balance demonstrated that the overcharge characteristics of Lithium-ion cells was affected by the amount of cathode in the cells, which is independent of the amount of anode material. The rate of charge was found to be an important parameter, as electrolyte complete decomposition at low charge rates caused the end of overcharge testing, while high charge rates accelerated the rate of heat generation in the cells and the cell …

Go to article

Solid Oxide Fuel Cells-Materials And Prospects, Molenda Janina, Marzec Jacek Nov 2005

Solid Oxide Fuel Cells-Materials And Prospects, Molenda Janina, Marzec Jacek

Journal of Electrochemistry

The paper summarizes and discusses the basic properties of solid oxide fuel cell (SOFC) components (electrode materials and electrolyte) from the point of view of their essential functional parameters suck as chemicalstability, transport, catalytic and thermomechanical properties under operational conditions in a SOFC. An interrela-tion between the defect structure of these materials related to oxygen nonstoichiometry and their electronic propertiesand catalytic activity was shown. Single-chamber fuel cell concept was also presented.

Go to article

Silicides And Composites Materials As Anodes For Lithium Ion Batteries, Jun-Mei Yan, Hui-Zhen Huang, Jing Zhang, Yong Yang Nov 2005

Silicides And Composites Materials As Anodes For Lithium Ion Batteries, Jun-Mei Yan, Hui-Zhen Huang, Jing Zhang, Yong Yang

Journal of Electrochemistry

The anode materials of Mg2Si and MnSi were synthesized by mechanically activated annealing(MAA) techniques in this work and the in electrochemical performances were also studied.A series of composite materials of Mg2Si and CNTs or CMS were prepared by ball-milling method respectively. The reversible capacities of the composites were higher than that of the pure Mg2Si and pure carbon materials.The cyclic performances have been improved greatly by ball-milling of the Mg2Si and carbon materials. Results show that ball-milling method is one kind of method to make alloy materials into practical use.

Go to article

Electrochemical Performance Of Li3.22Na0.569Mn5.78O12.0, Qing-Song Tong, Yong Yang, Jin-Ming Lian Nov 2005

Electrochemical Performance Of Li3.22Na0.569Mn5.78O12.0, Qing-Song Tong, Yong Yang, Jin-Ming Lian

Journal of Electrochemistry

By selecting LiOH·H2O and Mn(CH3COO)2·2H2O as starting-materials, the positive materials with the structure characterization of Li4Mn5O12 and composition of Li3.22Na0.569Mn5.78O12.0 were prepared by two-phase sintering method consisted of microwave and solid-state sintering processes. XRD patterns data showed that a pure Li4Mn5O12 phase was obtained by the fore-treatment of microwave sintering and the post-treatment of the solid-state sintering at 380℃. The charge-discharge tests showed that the newly prepared sample exhibited an initial capacity of 132 mAh·g …

Go to article

Index Of Recent Literatures In Electrochemical Technique And Its Applications, Editorial Office Of J.Electrochem. Nov 2005

Index Of Recent Literatures In Electrochemical Technique And Its Applications, Editorial Office Of J.Electrochem.

Journal of Electrochemistry

No abstract provided.

Go to article

Deafdigest: Gold Edition, November 27, 2005, Barry Strassler Nov 2005

Deafdigest: Gold Edition, November 27, 2005, Barry Strassler

DeafDigest Gold 2005

No abstract provided.

Go to article

Ontoqa: Metric-Based Ontology Quality Analysis, Samir Tartir, I. Budak Arpinar, Michael Moore, Amit P. Sheth, Boanerges Aleman-Meza Nov 2005

Ontoqa: Metric-Based Ontology Quality Analysis, Samir Tartir, I. Budak Arpinar, Michael Moore, Amit P. Sheth, Boanerges Aleman-Meza

Kno.e.sis Publications

As the Semantic Web gains importance for sharing knowledge on the Internet this has lead to the development and publishing of many ontologies in different domains. When trying to reuse existing ontologies into their applications, users are faced with the problem of determining if an ontology is suitable for their needs. In this paper, we introduce OntoQA, an approach that analyzes ontology schemas and their populations (i.e. knowledgebases) and describes them through a well defined set of metrics. These metrics can highlight key characteristics of an ontology schema as well as its population and enable users to make an informed …

Go to article

George Best Dies, Richard C. Crepeau Nov 2005

George Best Dies, Richard C. Crepeau

On Sport and Society

George Best died on Friday in London. For most Americans this simple fact of death has little meaning. For soccer fans across the globe it is a fact that is neither simple nor without meaning.

Go to article

C-Terminal Tail Residue Arg1400 Enables Nadph To Regulate Electron Transfer In Neuronal Nitric-Oxide Synthase, Mauro Tiso, David Konas, Koustubh Panda, Elsa D. Garcin, Manisha Sharma, Elizabeth D. Getzoff, Dennis J. Stuehr Nov 2005

C-Terminal Tail Residue Arg1400 Enables Nadph To Regulate Electron Transfer In Neuronal Nitric-Oxide Synthase, Mauro Tiso, David Konas, Koustubh Panda, Elsa D. Garcin, Manisha Sharma, Elizabeth D. Getzoff, Dennis J. Stuehr

Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works

The neuronal nitric-oxide synthase (nNOS) flavoprotein domain (nNOSr) contains regulatory elements that repress its electron flux in the absence of bound calmodulin (CaM). The repression also requires bound NADP(H), but the mechanism is unclear. The crystal structure of a CaM-free nNOSr revealed an ionic interaction between Arg1400 in the C-terminal tail regulatory element and the 2′-phosphate group of bound NADP(H). We tested the role of this interaction by substituting Ser and Glu for Arg1400 in nNOSr and in the full-length nNOS enzyme. The CaM-free nNOSr mutants had cytochrome c reductase activities that were less repressed than in wild-type, and this …

Go to article

Insights From The X-Ray Crystal Structure Of Coral 8r-Lipoxygenase: Calcium Activation Via A C2-Like Domain And A Structural Basis Of Product Chirality, Michael L. Oldham, Alan R. Brash, Marcia E. Newcomer Nov 2005

Insights From The X-Ray Crystal Structure Of Coral 8r-Lipoxygenase: Calcium Activation Via A C2-Like Domain And A Structural Basis Of Product Chirality, Michael L. Oldham, Alan R. Brash, Marcia E. Newcomer

Faculty Publications

Lipoxygenases (LOXs) catalyze the regio- and stereospecific dioxygenation of polyunsaturated membrane-embedded fatty acids. We report here the 3.2 Å resolution structure of 8R-LOX from the Caribbean sea whip coral Plexaura homomalla, a LOX isozyme with calcium dependence and the uncommon R chiral stereospecificity. Structural and spectroscopic analyses demonstrated calcium binding in a C2-like membrane-binding domain, illuminating the function of similar amino acids in calcium-activated mammalian 5-LOX, the key enzyme in the pathway to the pro-inflammatory leukotrienes. Mutation of Ca2+- ligating amino acids in 8R-LOX resulted not only in a diminished capacity to bind membranes, as monitored by fluorescence resonance energy …

Go to article

Genetic Engineering Of Plants Through Manipulation Of Lignin Biosynthesis, Vincent Lee C. Chiang, Chung-Jui Tsai, Wen-Jing Hu Nov 2005

Genetic Engineering Of Plants Through Manipulation Of Lignin Biosynthesis, Vincent Lee C. Chiang, Chung-Jui Tsai, Wen-Jing Hu

Michigan Tech Patents

The invention pertains to the genetically down regulating a lignin pathway p-coumarate Co-enzyme A ligase (CCL) in trees.

Go to article

The Weekly Challenger, November 24, 2005, The Weekly Challenger, Et Al Nov 2005

The Weekly Challenger, November 24, 2005, The Weekly Challenger, Et Al

Weekly Challenger Newspaper Collection

The November 24, 2005, issue of The Weekly Challenger.

Go to article

Thanksgiving, Richard C. Crepeau Nov 2005

Thanksgiving, Richard C. Crepeau

On Sport and Society

Major League Baseball and the MLB Players Association have announced yet another new agreement on drug policy. It may even be the final such policy agreement of the year. As such we can now relax and know that drug use in baseball is under complete and total control. We also know that democracy is spreading across Iraq and throughout the Middle East. And Santa Claus is coming to town.

Go to article

Boilerplate And Economic Power In Auto Manufacturing Contracts, Omri Ben-Shahar, James J. White Nov 2005

Boilerplate And Economic Power In Auto Manufacturing Contracts, Omri Ben-Shahar, James J. White

Law & Economics Working Papers Archive: 2003-2009

This article studies the standard form contracts used by automobile manufacturers to purchase auto parts. It explores how the contracts reflect divisions of bargaining power, asymmetric information, problems of hold-up and renegotiation, and market competition. Based on interviews with representatives of buyers and suppliers, the article also describes the process of drafting the forms, the negotiation over price and other terms in the shadow of these forms, and the opportunities for non-drafters to extract improved terms. Some of the main lessons are: (i) The terms of the contracts and the bidding process prevent ex-post hold-up by suppliers (in contrast to …

Go to article

The Irrational Auditor And Irrational Liability, Adam C. Pritchard Nov 2005

The Irrational Auditor And Irrational Liability, Adam C. Pritchard

Law & Economics Working Papers Archive: 2003-2009

This essay argues that less liability for auditors in certain areas might encourage more accurate and useful financial statements, or at least equally accurate statements at a lower cost. Audit quality is promoted by three incentives: reputation, regulation, and litigation. When we take reputation and regulation into account, exposing auditors to potentially massive liability may undermine the effectiveness of reputation and regulation, thereby diminishing integrity of audited financial statements. The relation of litigation to the other incentives that promote audit quality has become more important in light of the sea change that occurred in the regulation of the auditing profession …

Go to article

The Cord Weekly (November 23, 2005) Nov 2005

The Cord Weekly (November 23, 2005)

The Cord

No abstract provided.

Go to article

Achievement Gaps And Correlates Of Early Mathematics Achievement: Evidence From The Ecls K-First Grade Sample, Madhabi Chatterji Nov 2005

Achievement Gaps And Correlates Of Early Mathematics Achievement: Evidence From The Ecls K-First Grade Sample, Madhabi Chatterji

Education Policy Analysis Archives (EPAA)

In light of the NCLB Act of 2001, this study estimated mathematics achievement gaps in different subgroups of kindergartners and first graders, and identified child- and school-level correlates and moderators of early mathematics achievement. ...

Go to article

Políticas Educativas De Reforma E Identidades Profesionales: El Caso De La Educación Secundaria En España, Antonio Bolívar, María Jesús Gallego, María José León, Purificación Pérez Nov 2005

Políticas Educativas De Reforma E Identidades Profesionales: El Caso De La Educación Secundaria En España, Antonio Bolívar, María Jesús Gallego, María José León, Purificación Pérez

Education Policy Analysis Archives (EPAA)

The article analyses the effects of the large scale educational reform policies on teachers' professional identities, based on a review of the literature and data from a study we carried out. Professional identity crisis is placed within the broader framework of the modernity crisis. The story of this crisis (influences and causes) includes a description of the education reform of the 1990’s (LOGSE, Ley de Ordenación General del Sistema Educativo), the role played by teacher training in aggravating the problem, and the reasons secondary teachers have resisted educational change. ...

Go to article

Stony Brook Press, V. 27, N. 06, Stony Brook University. Stony Brook Press. Nov 2005

Stony Brook Press, V. 27, N. 06, Stony Brook University. Stony Brook Press.

Stony Brook Press

v. 27, n. 06, v.:ill. ; 38 cm (original analog pub.)

Go to article

Education Policy Analysis Archives 13/46 , Arizona State University, University Of South Florida Nov 2005

Education Policy Analysis Archives 13/46 , Arizona State University, University Of South Florida

College of Education Publications

Achievement gaps and correlates of early mathematics achievement : evidence from the ECLS K, Äìfirst grade sample / Madhabi Chatterji.

Go to article

Education Policy Analysis Archives 13/45 , Arizona State University, University Of South Florida Nov 2005

Education Policy Analysis Archives 13/45 , Arizona State University, University Of South Florida

College of Education Publications

Políticas educativas de reforma e identidades profesionales : el caso de la educación secundaria en España / Antonio Bolívar, María Jesús Gallego, María José León [and] Purificación Pérez.

Go to article

Crow's Nest, November 23, 2005, Crow's Nest Staff Nov 2005

Crow's Nest, November 23, 2005, Crow's Nest Staff

Crow's Nest

The November 23, 2005, issue of the Crow's Nest.

Go to article

Proceedings Of The Liberal Democracy Nepal (Ldn) Workshop On Opportunities And Challenges For Nepali Political Parties; October 20-24, 2005; Washington Dc, Usa, Liberal Democracy Nepal Nov 2005

Proceedings Of The Liberal Democracy Nepal (Ldn) Workshop On Opportunities And Challenges For Nepali Political Parties; October 20-24, 2005; Washington Dc, Usa, Liberal Democracy Nepal

Liberal Democracy Nepal Bulletin

A workshop on Opportunities and Challenges for Nepali Political Parties was conducted in Washington, D.C. by Liberal Democracy Nepal (LDN) on October 22-23, 2005. The workshop was attended by the representatives of six political parties: Nepali Congress, Communist Party of Nepal UML, Nepali Congress—Democratic, Rastriya Prajatantra Party, Jana Morcha Nepal, Nepal Sadbhavana Party (A). In addition to the delegates of the six political parties, prominent Nepali human rights activist was also in attendance. The Workshop consisted of four moderated thematic sessions as described in the summary. The Nepali delegates, LDN moderators and participants, deliberated in depth several aspects of these …

Go to article

First Prev Next Last