bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Lateral Excursive Movements on the Progression of Abfraction Lesions
Authors: Wood I. D. , Kassir A. S. A. , Brunton P. A. 
Published: May 2009

Clinical Relevance
The results of this randomized controlled trial have direct relevance to clinical practice and provide some evidence that occlusal adjustment to prevent further progression of abfraction lesions cannot be supported currently.
Minimally Retentive Gold Onlays: A Six-Year Case Report
Authors: Brackett M. G. , Kious A. R. , Brackett W. W. 
Published: May 2009

PURPOSE
Partial veneer gold restorations, such as gold onlays, have changed little in preparation design over the past 40 years, as evidenced by textbooks that have long been in print.1–2 Such designs must have been based on the assumption that restorations would be luted with zinc phosphate cement but have not altered, despite the introduction of stronger luting cement classes, such as resin composite and resin-modified glass ionomer cements.1
It is well-established that both porcelain and base metal materials, which have been etched on the intaglio surface, can be combined with resin composite luting cements to produce restorations retained largely through adhesion. However, neither of these materials can equal the combination of minimal tooth reduction and margin adaptation that is possible with high noble gold restorative materials.
Although high noble gold alloys cannot be etched, air abrasion of the intaglio surface of restorations likely improves micromechanical retention, but it is unknown whether this, along with a strong luting cement, is sufficient to stabilize high noble gold alloys in preparations with considerably less retention and resistance form than traditional designs.
Bond Strength of Resin Cements to a Zirconia Ceramic with Different Surface Treatments
Authors: Cavalcanti A. N. , Foxton R. M. , Watson T. F. , Oliveira M. T. , Giannini M. , Marchi G. M. 
Published: May 2009

Clinical Relevance
Air abrasion and the use of special functional monomers that are able to chemically bond to zirconium dioxide can improve adhesion to a highly dense zirconia ceramic.
Transfusion associated in-hospital mortality and morbidity in isolated Coronary Artery Bypass Graft surgery
Authors: Salehiomran Abbas , Ahmadi Hossein , Karimi Abbasali , Tazik Mokhtar , Dowlatshahi Samaneh , Fathollahi Mahmood , Abbasi Seyed 
Published: May 2009

AbstractTransfusion after cardiac surgery is very common. This rate varies between institutions and has remained high despite established transfusion guidelines. We analyzed our database of patients who underwent isolated CABG (Coronary Artery Bypass Graft) to determine the predictive factors of homologous transfusion and associated postoperative morbidity, mortality and resource utilization. All 14,152 patients who underwent first-time isolated CABG, with or without cardiopulmonary bypass (CPB) who had postoperative homologous transfusion between February 2002 and March 2008 in Tehran Heart Center, were evaluated retrospectively. Overall, 16.5% of patients received transfusion. Transfused patients demonstrated a significantly higher incidence of postoperative complications (cardiac, infectious, ischemic, reoperation) and mortality (p<0.001). Homologous blood transfusion effect on mortality, morbidity and resource utilization. By Multivariable logistic regression analysis adjusted for confounders: Homologous blood transfusion effect on Mortality (30-days) (OR=3.976, p<0.0001), Prolonged ventilation hours (OR=4.755, p<0.0001), Total ICU hours (β =14.599, p<0.0001), Hospital length of stay (β =1.141, p<0.0001), Post surgery length of stay (β =0.955, p<0.0001). We conclude that the isolated CABG patients receiving blood transfusion have significantly higher mortality, morbidity and resource utilization. Homologous blood transfusion is an independent factor of increased resource utilization, morbidity and mortality.
An intelligent MPEG rate control in 2.4 GHz frequency
Authors: Kazemian H. B. , Chantaraskul S. 
Published: May 2009

AbstractTransmitting Moving Picture Expert Group (MPEG) Variable Bit Rate (VBR) video stream over 2.4 GHz wireless frequency demands a large bandwidth and may result in data loss and delay, because of excessive fluctuation in bit rate. Transmission over 2.4 GHz frequency further causes uncertainty due to interferences by other wireless devices in the same frequency band and/or common dynamic channel noises. As a result, an intelligent system has been developed for MPEG video transmission over 2.4 GHz frequency band. A novel fuzzy controller automatically determines the quantization scale for each Group Of Picture (GOP) of the encoder during the transmission period. Moreover, a fuzzy controller and a neural‐fuzzy controller stream the MPEG video data to conform to the current condition of dynamic wireless channel to maintain image quality during the transmission. In the intelligent system, rather than choosing the parameters associated with a given membership function arbitrarily, these parameters are chosen as such to tailor the membership functions to the desired input/output data. The intelligent system computes and trains the system in such a way that its output will be equal to the desired value. Computer simulation results demonstrate that the proposed intelligent technique increases transmission rate and reduces data loss, excessive delay and image quality degradation as compared with a conventional video transmission over 2.4 GHz frequency band. Copyright © 2009 John Wiley & Sons, Ltd.
Algorithmic stemmers or morphological analysis? An evaluation
Authors: Fautsch Claire , Savoy Jacques 
Published: May 2009

AbstractIt is important in information retrieval (IR), information extraction, or classification tasks that morphologically related forms are conflated under the same stem (using stemmer) or lemma (using morphological analyzer). To achieve this for the English language, algorithmic stemming or various morphological analysis approaches have been suggested. Based on Cross‐Language Evaluation Forum test collections containing 284 queries and various IR models, this article evaluates these word‐normalization proposals. Stemming improves the mean average precision significantly by around 7% while performance differences are not significant when comparing various algorithmic stemmers or algorithmic stemmers and morphological analysis. Accounting for thesaurus class numbers during indexing does not modify overall retrieval performances. Finally, we demonstrate that including a stop word list, even one containing only around 10 terms, might significantly improve retrieval performance, depending on the IR model.
Nuclearity Control in Molecular Iron Phosphates through Choice of Iron Precursors and Ancillary Ligands
Authors: Murugavel Ramaswamy , Gogoi Nayanmoni , Suresh K. G. , Layek S. , Verma H. C. 
Published: May 2009

AbstractOne to five, one at a time: The choice of iron precursors and the amine co‐ligand are employed as switches to control the nuclearity in iron phosphate molecular clusters. Using this control, it is possible to isolate selectively either a mono, di, tri, tetra, or pentanuclear cluster, for a given set of reactants.magnified imageThe potential of a mono‐organophosphate ester in assembling low to medium nuclearity iron complexes with novel topological architectures has been investigated. Reaction of 2,6‐diisopropylphenyl dihydrogen phosphate (dipp‐H2) with ferrous acetate under an inert atmosphere resulted in the formation of mononuclear, [FeII(dipp‐H)2(py)4] (1) (py=pyridine), dinuclear [FeIII2O(dipp‐H)4(3,5‐dmpz)3(thf)]⋅(3,5‐dmpz)⋅(thf)3 (2) (3,5‐dmpz=3,5‐dimethylpyrazole, thf=tetrahydrofuran), and trinuclear [FeIII2FeIIO(dipp‐H)6(thf)3]⋅(collidine) (3) complexes by changing the ancillary amine used in the reaction. Use of a preformed μ3‐oxo bridged trinuclear complex, [FeIII3O(O2CR)6(H2O)3]X (X=Cl and NO3), as the precursor yielded two tetranuclear iron phosphates, [FeIII4O(dipp)3(py)4(PhCOO)4]⋅(toluene)3 (4) and [FeIII4O(dipp)3(OAc)4(py)4]⋅(py)2 (5), having a core structure similar to those found in tetranuclear iron phosphonates. When FeCl3⋅6H2O was used as the iron precursor, an unprecedented pentanuclear iron phosphate complex, [FeIII5O(dipp)6(py)4Cl2][pyH] (6) with a novel structure was isolated. Another pentanuclear complex having a similar core structure, [Fe5O(dipp)6(HO2CPh)3(CH3CN)3Cl] (7) was isolated on treatment of dipp‐H2 with the triangular complex, [FeIII3O(O2CPh)6(H2O)3]Cl in the absence of any added amine co‐ligand. Compounds 1–7 have been characterized by analytical techniques, spectroscopic studies, single crystal X‐ray diffraction studies, and magnetic measurements. The Mössbauer studies carried out at room temperature support the formulation of all the compounds.
Roles and regulation of Thy‐1, a context‐dependent modulator of cell phenotype
Authors: Bradley John E. , Ramirez Gustavo , Hagood James S. 
Published: May 2009

AbstractThy‐1 or CD90 is a glycophosphatidylinositol‐linked glycoprotein expressed on the surface of neurons, thymocytes, subsets of fibroblasts, endothelial cells, mesangial cells and some hematopoietic cells. Thy‐1 is evolutionarily conserved, developmentally regulated, and often has dramatic effects on cell phenotype; however, the effects vary between and in some cases within cell types and tissues, and between similar tissues in different species, indicating that the biological role of Thy‐1 is context‐dependent. Thy‐1 exists in soluble form in some body fluids; however, the mechanisms of its shedding are unknown. In addition, Thy‐1 expression can be regulated by epigenetic silencing. Because Thy‐1 modulates many basic cellular processes and is involved in the pathogenesis of a number of diseases, it is important to better understand its regulation. © 2009 International Union of Biochemistry and Molecular Biology, Inc.
Computer software for reducing the learning time of marine engineers
Authors: Orosa José A. 
Published: May 2009

AbstractNowadays, in convergence of European university studies, the syllabus of the Marine Engineer University studies in Spain employs considerable time to study Applied Thermodynamics. Engineering Equation Solver (EES) was chosen as the best answer. In order to validate this solution, a case study was performed. © 2009 Wiley Periodicals, Inc. Comput Appl Eng Educ 19: 647–650, 2011
The VSDS environment based laboratory in computer architecture and organisation
Authors: Grbanovic Nenad , Nikolic Bosko , Djordjevic Jovan 
Published: May 2009

AbstractCourses in computer architecture and organisation are indispensable part of any computer engineering curriculum. In most of cases these courses include the work in the laboratory with the aim to provide students not only with the theoretical background but also with some practical experience. The article presents an approach of achieving this using the originally developed VSDS environment. The background and motivation leading towards the development of the VSDS environment are first given. Then, the VSDS environment features are briefly described. Finally, the use of the VSDS environment in laboratories for the courses in the logical design of digital systems, the computer architecture and organisation and the design of computer systems is presented. © 2009 Wiley Periodicals, Inc. Comput Appl Eng Educ 19: 685–696, 2011
Internet‐based instructional resource exposing middle school students to structural and earthquake engineering
Authors: Mosqueda Gilberto , Ahmadizadeh Mehdi , Tangalos Sofia , Moore‐Russo Deborah 
Published: May 2009

AbstractAn all‐inclusive web resource has been developed that links the study of earthquakes and engineering design to middle grades' (students of ages 10–15) science, mathematics, and technology. It was created to help students understand how earthquakes affect humans and how engineered solutions can mitigate damage. One key component of the website is an innovative internet‐based structural simulation program that allows students to design and simulate the behavior of a building model under earthquake loads. The simulation component is coupled with a hands‐on activity, where students build the model they have designed using wood dowels and pegboards. The students can then use a small shake table to physically simulate and experimentally verify the performance of their models under the design earthquakes. The simulation component has been calibrated to physical models using materials recommended for construction. The website also includes detailed information on earthquake engineering design, lesson plans for implementation in classrooms, a searchable database providing links to authoritative resources on earthquakes and other natural disasters, and national education standards for STEM subject topics. © 2009 Wiley Periodicals, Inc. Comput Appl Eng Educ 19: 724–732, 2011
Using learning style‐based diagnosis tool to enhance collaborative learning in an undergraduate engineering curriculum
Authors: Huang Chenn‐Jung , Liao Jia‐Jian , Shen Hung‐Yen , Aye Nwe Ni , Wang Yu‐Wu , Chen Hong‐Xin , Yang Dian‐Xiu , Luo Yun‐Cheng , Chuang Yi‐Ta 
Published: May 2009

AbstractIn this study, an intelligent learning style aware diagnosis agent for computer‐supported cooperative learning is proposed. Learners are first assigned to heterogeneous groups based on their learning styles questionnaire given right before the beginning of learning activities on the e‐learning platform. The proposed diagnosis agent then scrutinizes each learner's learning portfolio on e‐learning platform and automatically issues feedback messages in case some learner's behavior that is unfitted to his/her learning styles or devious argument on discussion board or wiki is detected. The Moodle, an open‐source software e‐learning platform, is used to establish the cooperative learning environment for this study. The experimental results reveal that the proposed learning style aware diagnosis agent indeed boosts the performance of the learners. © 2009 Wiley Periodicals, Inc. Comput Appl Eng Educ 19: 739–746, 2011
Education set design for smart home applications
Authors: Yilmaz Ercan Nurcan 
Published: May 2009

AbstractAlong with the increasing number of smart home applications, the need for the education of those systems has been unavoidable. Smart homes are a building and occupy large area. It has a lot of special control systems, communication systems and wiring. Thus, education of smart home systems requires special laboratories. At the places where special laboratories do not exist, the education is carried on theoretically. This is a problem. To achieve good smart home education a close collaboration between practice and theory is required. In this study, it has been tried to make an approach to the problem. So, the education set has been developed for better education than only theoretical education. © 2009 Wiley Periodicals, Inc. Comput Appl Eng Educ 19: 631–638, 2011
The Engineering of Bacteria Bearing Azido‐Pseudaminic Acid‐Modified Flagella
Authors: Liu Feng , Aubry Annie J. , Schoenhofen Ian C. , Logan Susan M. , Tanner Martin E. 
Published: May 2009

AbstractCatch a tiger by the tail: We have demonstrated that by feeding nonmotile mutant C. jejuni bacteria with a neutral azide‐labelled pseudaminic acid precursor we can restore their ability to generate functional flagella. The presence of azido‐pseudaminic acid on the surface of the flagella provides a bio‐orthogonal chemical handle that can be used to modify the flagellar proteins.magnified image
Engineered Two‐Helix Small Proteins for Molecular Recognition
Authors: Webster Jack M. , Zhang Rong , Gambhir Sanjiv S. , Cheng Zhen , Syud Faisal A. 
Published: May 2009

AbstractLess is more: By starting with a high‐affinity HER2‐binding 3‐helix affibody molecule, we successfully developed 2‐helix small protein binders with 5 nM affinities by using a combination of several different strategies. Our efforts clearly suggest that 2‐helix small proteins against important tumor targets can be obtained by rational protein design and engineering.magnified image
Site‐specific Protein Cross‐Linking with Genetically Incorporated 3,4‐Dihydroxy‐L‐Phenylalanine
Authors: Umeda Aiko , Thibodeaux Gabrielle Nina , Zhu Jie , Lee YungAh , Zhang Zhiwen Jonathan 
Published: May 2009

AbstractCome together right now with L‐DOPA: Chemical cross‐linking is widely used to study protein–protein interactions. However, many cross‐linking agents suffer from low reactivity or selectivity. An efficient and selective reaction of site‐specific protein cross‐linking was achieved using genetically incorporated 3,4‐dihydroxy‐L‐phenylalanine.magnified image
[18F]SiFA‐isothiocyanate: A New Highly Effective Radioactive Labeling Agent for Lysine‐Containing Proteins
Authors: Rosa‐Neto Pedro , Wängler Björn , Iovkova Ljuba , Boening Guido , Reader Andrew , Jurkschat Klaus , Schirrmacher Esther 
Published: May 2009

AbstractA highly efficient 18F‐labeling synthon for universal protein labeling is reported. Diverse 18F‐labeled proteins of 66–144 kDa were prepared with [18F]SiFA‐isothiocyanate synthesized by an isotopic 19F for 18F exchange at the silicon atom. Overall preparative radiochemical yields were 20–40 % after 40–50 min. No bone uptake of 18F radioactivity was detected until 90 min post‐injection of 18F‐SiFA‐RSA; this demonstrates the metabolic stability of the [18F]SiFA moiety.magnified image
Two Base Pair Duplexes Suffice to Build a Novel Material
Authors: Meng Martin , Ahlborn Carolin , Bauer Matthias , Plietzsch Oliver , Soomro Shahid A. , Singh Arunoday , Muller Thierry , Wenzel Wolfgang , Bräse Stefan , Richert Clemens 
Published: May 2009

AbstractTetrahedral DNA hybrids with tetrakis(p‐hydroxyphenyl)methane cores hybridize in a sequence‐specific fashion at much higher temperatures than isolated linear duplexes. Dinucleotide DNA arms suffice to induce the formation of a solid at room temperature; this demonstrates the strength of multivalent binding. The graphic shows a view of a modeled assembly.magnified image
Spontaneous coronary artery dissection: A Western Denmark Heart Registry Study
Authors: Mortensen K.H. , Thuesen L. , Kristensen I.B. , Christiansen E.H. 
Published: May 2009

AbstractBackground: Spontaneous coronary artery dissection (SCAD) is a rare cause of acute coronary syndrome (ACS) that associates with a high acute‐phase mortality rate, whereas long‐term outcome is less well described. Objective: To describe the incidence, predictors, and prognosis of SCAD. Design: Retrospective case‐identification study from the Western Denmark Heart Registry and the database of the Forensic Institute at Aarhus University from 1999 through 2007. Results: SCAD was documented in 22 of 32,869 (0.7‰) angiograms in the angiographic registry. The SCAD incidence among cases of ACS was 22 of 11,175 (2.0‰). None was seen in the forensic database. The mean age was 48.7 ± 8.9 years (range: 37–71 years). Females constituted 17 of 22 (77%) patients and all had undergone one or more pregnancies; two cases occurred in the postpartum period. The left descending artery (LAD) was the predominant site of entry. The age distribution, prevalence of the cardiovascular risk factors, presence of coronary atherosclerosis, and entry of the dissection were comparable among genders. Treatment was percutaneous coronary intervention in 13 of 22 (59%), coronary artery bypass operation in 2 of 22 (9%), and medical treatment in 7 of 22 (32%) patients. The mean follow‐up period was 3.6 ± 2.9 years. One patient suffered from recurrent SCAD; another patient died suddenly. The MACE‐ (cardiac death, nonfatal myocardial infarction, and new revascularization) free survival was 81% after 24 months. Conclusion: SCAD is a rare disease that mainly affects younger women. Compared with earlier reports, the prognosis seems to be improved by early diagnosis and interventional treatment. © 2009 Wiley‐Liss, Inc.
Exact deployment of stents in ostial renal artery stenosis using the stent tail wire or Szabo technique
Authors: Salazar Miguel , Kern Morton J. , Patel Pranav M. 
Published: May 2009

AbstractThis report describes a technique for the exact deployment of a stent in ostial renal artery stenosis (RAS) by using a second wire inserted through the last cell of a stent. This stent tail wire or anchor technique was first described by Szabo et al. (Am J Cardiol 2005; 96:212H) and facilitates precise aorto‐ostial stent deployment in cases of atherosclerotic RAS. The technique also helps to eliminate errors of improper stent positioning at this aorto‐renal junction, and may possibly minimize patient exposure to ionizing radiation and contrast dye. © 2009 Wiley‐Liss, Inc.
Comparison of magnetically navigated and conventional wire percutaneous coronary intervention of a single discrete stenosis
Authors: Patterson Mark S. , van Nooijen Ferdinand , Ijsselmuiden Alexander , Dirksen Maurits , Domburg Ron Van , Serruys Patrick , Kiemeneij Ferdinand 
Published: May 2009

AbstractObjective:The objective of this study is to compare magnetic guidewire navigation in percutaneous coronary intervention (MPCI) to conventional percutaneous coronary intervention (CPCI) for the elective treatment of a single discrete stenosis.Background:Magnetic navigation actively steers an angioplasty wire‐tip and may improve PCI procedures, but it is not known whether the intricacy and increased preparation necessary for using the system negatively influences the performance of simple procedures in terms of time and contrast use.Methods:The procedures of 44 patients (mean age 65 ± 10 year) undergoing elective single vessel MPCI of a single discrete stenosis were matched for age, gender, and lesion location with 44 concurrent patients (mean age 65 ± 10 year) undergoing CPCI. The major endpoint was procedural time.Results:Technical success was defined as an intraluminal wire position distal to the stenosis. Procedural outcome, contrast use, and costs were evaluated. Clinical demographics and angiographic characteristics of the two groups were similar, except for a higher incidence of previous MI and class III angina pectoris in the conventional group. The technical success rate was high and identical in both groups (97.7%). Procedural and fluoroscopy times were not significantly different for MPCI compared to CPCI (21.0 ± 14.5 min vs. 24.7 ± 14.0 min; 4.9 ± 4.8 min vs. 7.3 ± 10.3 min, P = NS). There was a significant reduction in median contrast use [60 ml/patient (41–100) vs. 100 ml/patient (64–130); P = 0.006].Conclusion:Magnetic navigation does not increase procedural time, irradiation, equipment use, or cost compared to conventional PCI of a single discrete stenosis. It proved feasible, yielding high rates of procedural success with less contrast use. © 2009 Wiley‐Liss, Inc.
Experimental Investigation and Modeling Approach of the Phenylacetonitrile Alkylation Process in a Microreactor
Authors: Borovinskaya E. S. , Mammitzsch L. , Uvarov V. M. , Schael F. , Reschetilowski W. 
Published: May 2009

AbstractThe application of microreaction technology has the potential to intensify chemical processes. It is therefore of great interest to investigate the operating efficiency of a multiphase process such as the alkylation of phenylacetonitrile in a microreactor and to compare the performance to a batch reactor. The undeniable advantages of continuous microreactor systems for this process were demonstrated. Furthermore, the influence of the organic to aqueous phase ratio in the microreactor was investigated. A model of the reaction course was formulated based on experimental data. This model was used in the analysis and modeling of the alkylation process in a microreactor and found to be adequate. The optimal microreactor performance conditions were determined using the numerical optimization technique (Harrington's desirability function) and confirmed by experiments.