bluuebunny/crossref_metadata_2025 huggingface dataset:
Interfacial chemistry on carboxylate‐functionalized monolayer assemblies
Authors: Gershevitz Olga , Osnis Alina , Sukenik Chaim N.
Published: June 2005

Deposition of trichlorosilanes with ester groups at their remote termini provides a convenient entry to carboxylic acid‐bearing siloxane‐anchored self‐assembled monolayers. The de‐esterification of these esters has been optimized to minimize monolayer damage, and their quantitative re‐esterification provides clear evidence for the stability of these systems. Both the structure of the ester‐terminated monolayer and its de‐esterification/esterification chemistry can be easily monitored by FTIR‐ATR measurements. This spectroscopic tool, together with a liquid cell that enables IR spectra to be measured in an aqueous environment, enables a detailed structural analysis of the carboxylic acid‐bearing siloxane‐anchored self‐assembled monolayers and an assessment of their acid/base behavior (by in situ titration). The use of D2O instead of H2O for the in situ titration experiments also improves the available IR window. Both monomeric and dimeric/oligomeric acid groups are seen, and the relative ease of deprotonation of these various species can be directly monitored. Monomers of alkyl carboxylic acids that are hydrogen bonded only to surrounding water molecules have a pKa = 4.9, while the pKa for the aggregated molecules is 9.3. Similar behavior is seen for surface‐bound benzoic acids, where the two pKa values are 4.7 and 9.0. The influence of temperature on these structures and their chemistry has been explored to a limited extent as well. When the alkylcarboxylic acid system is cooled to 10 °C, the pKa value for the acid monomers is reduced from 4.9 to 4.5 and increases from 9.3 to 10.3 for the aggregates.
Fidelity in the supramolecular assembly of triply and quadruply hydrogen‐bonded complexes
Authors: Todd Eric M. , Quinn Jordan R. , Park Taiho , Zimmerman Steven C.
Published: June 2005

Advancements in self‐assembly and nanotechnology will require multiple assembly “codes” to be executed simultaneously. At the molecular level this will require fidelity or orthogonality in molecular recognition events. To explore the limits of orthogonal assembly, association constants (Kassoc) and dimerization constants (Kdimer) were measured with a known series of matched and mismatched recognition units in chloroform. Using the available complexation constants, fidelity, defined as [concentration of desired complexes]/[all complexes], was modeled for several component mixtures allowing general conditions for high fidelity assembly to be elucidated.
Retention of Surgically Implanted Ultrasonic Transmitters in the Brown Bullhead Catfish
Authors: Sakaris Peter C. , Jesien Roman V. , Pinkney Alfred E.
Published: July 2005

Our objective was to compare the ability of brown bullheads Ameiurus nebulosus to tolerate the implantation of ultrasonic transmitters with different coatings. A total of 14 brown bullheads were surgically implanted with ultrasonic transmitters; 7 transmitters were coated with paraffin wax and 7 with Scotchcast, an inert epoxy resin. Six brown bullheads were held as controls with no surgical procedures. Fish were held for 75 d in a flow-through, gravity-filtered series of tanks and monitored for transmitter expulsion, growth (i.e., percent relative weight change), condition (i.e., relative weight), and mortality. All fish with paraffin-coated implants retained their transmitters for the duration of the experiment, whereas two fish with Scotchcast implants expelled their transmitters within 50 d. All fish in the experiment survived, and the implanted fish exhibited growth and condition similar to those of the controls. On the basis of these results, we conclude that brown bullheads tolerate implantation of paraffin-coated transmitters and this attachment method may be used for brown bullheads in telemetric field studies.
Density Dependence of Walleye Maturity and Fecundity in Big Crooked Lake, Wisconsin, 1997–2003
Authors: Schueller Amy M. , Hansen Michael J. , Newman Steven P. , Edwards Clayton J.
Published: July 2005

Density is an important factor regulating age at maturity and fecundity of fish populations, so we evaluated the effect of the population density of adult walleyes Sander vitreus on age at 50% maturity and length-specific fecundity in Big Crooked Lake, Wisconsin, during 1997–2003. Abundance of adult walleyes from mark–recapture surveys ranged from 2,046 fish (3 per acre) to 4,901 fish (7 per acre). Age at 50% maturity ranged from 3.89 to 4.88 years, length of walleye sampled for fecundity ranged from 13.0 to 24.7 in, and average fecundity of a 17-in walleye ranged from 41,061 to 53,009 eggs. Age at 50% maturity increased significantly as adult walleye population density increased, whereas average fecundity of a 17-in walleye did not change significantly with density. We conclude that age at 50% maturity could be used as an indicator of population density and exploitation stress and thus could be used to set desired levels of harvest.
Understanding the Output of a Smith-Root GPP Electrofisher
Authors: Miranda L. E. , Spencer A. B.
Published: July 2005

There is confusion among biologists about the use of the percent of range control in the GPP series of Smith-Root electrofishers. We evaluated the output of a GPP 7.5 electrofisher to examine how adjustments to the percent of range control affect voltage, pulse width, duty cycle, and waveform. We found that contrary to how most users interpret the labels on the GPP unit, adjustments to the percent of range control are linked only indirectly to changes in peak voltage. Suggestions for dealing with the restrictions of the GPP units are offered.
The Gödel Editorial Project: A Synopsis
Authors: Feferman Solomon
Published: July 2005

The final two volumes, numbers IV and V, of the Oxford University Press edition of theCollected Works of Kurt Gödel[3]–[7] appeared in 2003, thus completing a project that started over twenty years earlier. What I mainly want to do here is trace, from the vantage point of my personal involvement, the at some times halting and at other times intense development of the Gödel editorial project from the first initiatives following Gödel's death in 1978 to its completion last year. It may be useful to scholars mounting similar editorial projects for other significant figures in our field to learn how and why various decisions were made and how the work was carried out, though of course much is particular to who and what we were dealing with.

My hope here is also to give the reader who is not already familiar with the GödelWorksa sense of what has been gained in the process, and to encourage dipping in according to interest. Given the absolute importance of Gödel for mathematical logic, students should also be pointed to these important source materials to experience first hand the exercise of his genius and the varied ways of his thought and to see how scholarly and critical studies help to expand their significance.

Though indeed much has been gained in our work there is still much that can and should be done; besides some indications below, for that the reader is referred to [2].
Future Tasks for Gödel Scholars
Authors: Dawson John W. , Dawson Cheryl A.
Published: July 2005

As initially envisioned, Gödel's Collected Works were to include transcriptions of material from his mathematical workbooks. In the end that material, as well as some other manuscript items from Gödel's Nachlass, had to be left out. This note describes some of the unpublished items in the Nachlass that are likely to attract the notice of scholars and surveys the extent of shorthand transcription efforts undertaken hitherto. Some examples of sources outside Gödel's Nachlass that may be of interest to Gödel scholars are also indicated.
Only Two Letters: The Correspondence between Herbrand and Gödel
Authors: Sieg Wilfried
Published: July 2005

Two young logicians, whose work had a dramatic impact on the direction of logic, exchanged two letters in early 1931. Jacques Herbrand initiated the correspondence on 7 April and Kurt Gödel responded on 25 July, just two days before Herbrand died in a mountaineering accident at La Bérarde (Isère). Herbrand's letter played a significant role in the development of computability theory. Gödel asserted in his 1934 Princeton Lectures and on later occasions that it suggested to him a crucial part of the definition of a general recursive function. Understanding this role in detail is of great interest as the notion is absolutely central. The full text of the letter had not been available until recently, and its content (as reported by Gödel) was not in accord with Herbrand's contemporaneous published work. Together, the letters reflect broader intellectual currents of the time: they are intimately linked to the discussion of the incompleteness theorems and their potential impact on Hilbert's Program.
Finitely axiomatizable ω-categorical theories and the Mazoyer hypothesis
Authors: Lippel David
Published: July 2005

Let F be the class of complete, finitely axiomatizable ω-categorical theories. It is not known whether there are simple theories in F. We prove three results of the form: if T ∈ F has a sufficently well-behaved definable set J, then T is not simple. (In one case, we actually prove that T has the strict order property.) All of our arguments assume that the definable set J satisfies the Mazoyer hypothesis, which controls how an element of J can be algebraic over a subset of the model. For every known example in F, there is a definable set satisfying the Mazoyer hypothesis.
Interpreting descriptions in intensional type theory
Authors: Carlström Jesper
Published: July 2005

Natural deduction systems with indefinite and definite descriptions (ε-terms and ι-terms) are presented, and interpreted in Martin-LÖf's intensional type theory. The interpretations are formalizations of ideas which are implicit in the literature of constructive mathematics: if we have proved that an element with a certain property exists, we speak of ‘the element such that the property holds’ and refer by that phrase to the element constructed in the existence proof. In particular, we deviate from the practice of interpreting descriptions by contextual definitions.
Projective well-orderings and bounded forcing axioms
Authors: Caicedo Andrés Eduardo
Published: July 2005

In the absence of Woodin cardinals, fine structural inner models for mild large cardinal hypotheses admit forcing extensions where bounded forcing axioms hold and yet the reals are projectively well-ordered.
Managing knowledge conflicts in an interorganizational project: A case study of the Infocomm Development Authority of Singapore
Authors: Tan Chee Wee , Pan Shan Ling , Lim Eric Tze Kuan , Chan Calvin Meng Lai
Published: June 2005

As knowledge gains currency as a critical resource in the information‐intensive economy, organizations have doubled their efforts to extract value from knowledge management endeavors, including the creation of interorganizational knowledge alliances. One particular aspect of such knowledge partnerships that has gone unnoticed in academic research is the presence of conflicts in knowledge activities. By adopting a conflict perspective of knowledge management in an interorganizational context, this study arrives at a two‐dimensional framework that defines knowledge conflicts in terms of their type and nature. Central to this article is the fundamental notion that conflicts form an integral part of knowledge management, and depending on how they are managed, conflicts may be formidable partners or dangerous adversaries in the corporate quest for a holistic knowledge strategy.
Designing an interdisciplinary graduate program in knowledge management
Authors: Al‐Hawamdeh Suliman
Published: June 2005

Designing an interdisciplinary graduate program in knowledge management requires a good understanding of knowledge processes and the ability to differentiate between information management and knowledge management. Given the complexity of knowledge and the nature of its existence, there is a need for graduate programs to go beyond information management and include in the curriculum disciplines that deal with social, cultural, and economic issues such as communication, cognitive science, and business. An understanding of the interdisciplinary nature of knowledge management is necessary for a more balanced and practical approach to the development of a knowledge management curriculum. In this article, the design and development of an interdisciplinary graduate program in knowledge man‐agement at Nanyang Technological University in Singa‐pore is reported. The initiation of the program was influenced by the strong demand from the public sector in Singapore for knowledge management professionals. It was developed in close association with the information studies program at Nanyang Technological University. In the first year, the program attracted 230 applicants, of which 45 were selected—22 students came from the public sector and 23 students came from the private sector.
The design and implementation of a simulation game for teaching knowledge management
Authors: Chua Alton Y.K.
Published: June 2005

Knowledge management is a discipline that has rapidly gained attention from both practitioners and academics over the last decade. However, the number of simulation games designed for knowledge management education has been limited. This is largely due to the emerging nature of knowledge management, whose domain the established gaming and simulation community has yet to enter. For this reason, the value and relevance of knowledge management simulation games is highlighted in this article by detailing the design and implementation of a simulation game entitled The Chief Knowledge Officer (CKO). The study was intended to meet two objectives: (a) to provide a template for designing knowledge management simulation games, and (b) to determine the effectiveness of CKO through a pretest–posttest research design. An empirical study which involved 32 final‐year Business Studies students reading an elective module entitled Knowledge Management Systems in an institute of higher education in Singapore was cond‐ucted. The findings confirmed that CKO was a viable and effective instructional tool for imparting knowledge to the participants. In addition, the scores obtained from CKO had a moderating effect on the participants' attitude towards the subject matter.
The analysis and evaluation of knowledge efficiency in research groups
Authors: Wang Junxia , Guan Jiancheng
Published: June 2005

To study the knowledge creation process, we introduce a conceptual framework that captures the major goals and features of research organizations. The knowledge efficiency of research groups is then empirically studied. The budget of the projects and size of the research groups are inputs of the projects. To make the assessment more reasonable, two‐dimensional indicators, including a domestic impact factor and an international impact factor, are jointly used to evaluate the research outputs for Chinese research groups through a Data Envelopment Analysis approach with preferences. Through comparisons of groups with the highest and lowest efficiency, we discover the critical factors influencing productivity and efficiency of these research groups based on the proposed framework. Finally, we provide some management suggestions for research groups to improve their knowledge creation efficiency.
Rißbildung in turmartigen Tragwerken: Schleuderbetonmast versus Stahlbetonschornstein
Authors: Noakowski Piotr , Breddermann Martin , Harling Andreas , Schnetgöke Jörg
Published: June 2005

Im Zeitalter des Mobilfunks dienen viele turmartige Bauwerke als Antennenträger. Viele davon stellen die besonders dafür konzipierten Schleuderbetonmaste sowie alte, entsprechend nachgerüstete Schornsteine dar. Manche dieser Tragwerke weisen auffällige Vertikalrisse auf, deren Auswirkung auf die Tragfähigkeit begutachtet werden muß. Bei dieser Aufgabe muß in Betracht gezogen werden, daß das im Erfahrungsbereich liegende Rißverhalten normaler Betontragwerke nur bedingt auf Schleuderbetontragwerke übertragbar ist. In diesem Sinne befaßt sich der vorliegende Beitrag mit der Erforschung der Unterschiede im Rißverhalten der hochfesten Schleuderbetonmaste gegenüber dem der niederfesten Betonschornsteine. Die entsprechenden Untersuchungsergebnisse wurden mit der Rißnachweismethode aus DIN V 1056, DIN EN 13084 und CICIND Model Code gewonnen und stellen einen wichtigen Teil der Qualitätssicherung von turmartigen Tragwerken dar.
Vorgespannte Betontürme für Windenergieanlagen: Einflüsse nichtlinearer Materialeigenschaften auf die Eigenfrequenzen als Entwurfskriterium
Authors: Wörmann Ralf , Harte Reinhard
Published: June 2005

Das rasante Wachstum des Windenergie‐Marktes in Deutschland hat in den letzten Jahrzehnten eine dynamische Weiterentwicklung der Windenergie‐Technologie ermöglicht. Neue Konzepte auf den Gebieten der Konstruktion, Steuerung und Generierung führten zu Qualitäts‐ und Effizienzsteigerung der Windenergieanlagen. Wachsende Rotordurchmesser und Turmhöhen stellen neue Anforderungen an Tragwerksplaner und Baufirmen. Um die großen Lasten am Turmkopf sicher in den Baugrund zu leiten und um das Eigenfrequenzverhalten auf die Erregerfrequenzen der Windturbine abzustimmen, ist bei Turmhöhen über 100 m in der Regel ein vorgespannter Stahlbetonturm erforderlich. Der vorliegende Beitrag wird die Entwurfskriterien für derartige Türme zusammenstellen und wird die für eine sichere dynamische Auslegung zu berücksichtigenden Einflüsse erläutern.
Beurteilung der Erdbebensicherheit von bestehenden Brückenbauwerken am Beispiel der Rheinbrücke Emmerich
Authors: Renault Philippe , Butenweg Christoph , Meskouris Konstantin
Published: June 2005

Der Beitrag stellt ein systematisches Verfahren für die Beurteilung der Erdbebensicherheit bestehender Brückenbauwerke vor. Die Durchführung des Verfahrens wird durch ein Managementsystem mit Datenbankfunktion und Anbindung an eine bundesweite Brückendatenbank unterstützt, das zurzeit im Rahmen eines Forschungsprojektes der Bundesanstalt für Straßenwesen entwickelt wird. Die praktische Anwendung wird am Beispiel von Deutschlands längster Hängebrücke, der Rheinbrücke Emmerich, demonstriert.
Anpassungsfaktoren für das Lastmodell 1 des DIN‐Fachberichtes 101 für gewichtsbeschränkt beschilderte Straßenbrücken
Authors: Curbach Manfred , Loos Stephan , Proske Dirk
Published: June 2005

Der DIN‐Fachbericht 101 enthält das aktuell gültige Verkehrslastmodell für Straßenbrücken in Deutschland. Im Gegensatz zur vorherigen Norm, der DIN 1072, beinhaltet der DIN‐Fachbericht aber keine Nachrechnungsklassen für historische Brücken. Im Rahmen der diesem Beitrag zugrundeliegenden Arbeiten wird der Versuch unternommen, Anpassungsfaktoren für das DIN‐Fachbericht‐Lastbild bereitzustellen und damit Lastbilder zu entwickeln, die den bisherigen Nachrechnungsklassen für gewichtsbeschränkt beschilderte Brücken äquivalent sind.
Beton erhöhter Brandbeständigkeit mit Polypropylenfasern: Nachweise im Frisch‐ und Festbeton
Authors: Nischer Peter , Wagner Oliver K.
Published: June 2005

Die Auswirkungen von Bränden in Tunneln in Österreich und anderen Ländern führten in den letzten Jahren zu intensiver Entwicklungsarbeit zur Erhöhung der Brandbeständigkeit von unterirdischen Betonbauwerken. Die dabei gewonnenen Erkenntnisse wurden in einer neuen Richtlinie der Österreichischen Vereinigung für Beton und Bautechnik (ÖVBB) zusammengefaßt [1]. Die Zugabe von PP‐Fasern kann ein Abplatzen von Innenschalenbeton auch unter den extremen Bedingungen eines Brandes im Tunnel zuverlässig verhindern. Wesentlich für die Wirksamkeit der Fasern ist vor allem deren gleichmäßige Verteilung im Beton. Um diese im Zuge der Bauherstellung nachweisen zu können, wurden Prüfverfahren am Frisch‐ und Festbeton entwickelt. Diese werden im vorliegenden Beitrag vorgestellt. Des weiteren wird von ersten Erfahrungen mit der Versuchsdurchführung in der Praxis berichtet.
Bemessung von Fundamentplatten aus Stahlfaserbeton gemäß ÖVBB Richtlinie Faserbeton und DBV Merkblatt Stahlfaserbeton
Authors: Gossla Ulrich , Billes Martin , Stelzer René
Published: June 2005

Stahlfaserbeton wird seit vielen Jahren erfolgreich für Fundamentplatten im Wohnungsbau verwendet. In den Regelwerken “Richtlinie Faserbeton” [1] für Österreich und im “DBV‐Merkblatt Stahlfaserbeton” [2] für Deutschland sind Materialgesetze und Bemessungsmethoden angegeben, die eine Bemessung von Fundamentplatten aus Stahlfaserbeton ermöglichen. In diesem Artikel werden diese Eigenschaften und die dazugehörenden Materialmodelle für die beiden Regelwerke in Österreich und Deutschland aufgezeigt und gegenübergestellt.

Aus einer nichtlinearen Finite‐Elemente‐Berechnung wird ein vereinfachtes statisches Modell auf Basis der Plastizitätstheorie für die Bemessung von Fundamentplatten aus Stahlfaserbeton abgeleitet und erläutert [3]. Anhand einer Beispielberechnung werden die österreichische und deutsche Bemessungsvorschrift verglichen.
Das Stadthaus in Dresden: Rettung einer historischen Eisenbetonkonstruktion
Authors: Wapenhans Wilfried , Richter Christine
Published: June 2005

1993 wurde bei Sanierungsarbeiten im Kellergeschoß des Stadthauses in Dresden fast zufällig eine stark geschädigte Stahlbetonstütze entdeckt. Dieser Bruch der Stütze war ein schrillendes Alarmzeichen und warf die Frage auf, ob sich möglicherweise weitere Stützen in einem ähnlich kritischen Zustand befanden und bereits zum Tragsicherheitsrisiko geworden waren. Dies gab Anlaß zu umfangreichen Untersuchungen, die weitere schwerwiegende Schäden an der Tragkonstruktion zutage treten ließen. Im Ergebnis dessen waren Sofortmaßnahmen zur Sicherung des Bauwerkes und die Erarbeitung einer optimalen Sanierungskonzeption mit anschließender Sanierung unerläßlich.

Nachrechnungen zur Standsicherheit des Tragwerkes ergaben, daß das heute anzustrebende Sicherheitsniveau in vielen Fällen nicht zu erreichen war. Deshalb mußte ein Verfahren gefunden werden, mit welchem der deterministische Sicherheitsbeiwert für die Berechnungen in der Sanierungsprojektierung auf ein vertretbares Niveau reduziert und gleichzeitig der Umfang der Sanierungsmaßnahmen auf ein ebenfalls vertretbares Niveau abgesenkt werden konnte. Eine Möglichkeit boten die Überlegungen zur rechnerischen Sicherheitsdiskussion nach Maniecki. Zum damaligen Zeitpunkt waren diese Überlegungen ein praktikabler Weg, der zum Erfolg führte.
Quantitative polysome analysis identifies limitations in bacterial cell‐free protein synthesis
Authors: Underwood Kelly A. , Swartz James R. , Puglisi Joseph D.
Published: June 2005

Cell‐free protein synthesis (CFPS) is becoming increasingly used for protein production as yields increase and costs decrease. CFPS optimization efforts have focused primarily on energy supply and small molecule metabolism, though little is known about the protein synthesis machinery or what limits protein synthesis rates. Here, quantitative polysome profile analysis was used to characterize cell‐free translation, thereby elucidating many kinetic parameters. The ribosome concentration in Escherichia coli‐based CFPS reactions was 1.6 ± 0.1 μM, with 72 ± 4% actively translating at maximal protein synthesis rate. A translation elongation rate of 1.5 ± 0.2 amino acids per second per ribosome and an initiation rate of 8.2 × 10−9 ± 0.3 × 10−9 M/s, which correlates to, on average, one initiation every 60 ± 9 s per mRNA, were determined. The measured CFPS initiation and elongation rates are an order of magnitude lower than the in vivo rates and further analysis identified elongation as the major limitation. Adding purified elongation factors (EFs) to CFPS reactions increased the ribosome elongation rate and protein synthesis rates and yields, as well as the translation initiation rate, indicating a possible coupling between initiation and elongation. Further examination of translation initiation in the cell‐free system showed that the first initiation on an mRNA is slower than subsequent initiations. Our results demonstrate that polysome analysis is a valid tool to characterize cell‐free translation and to identify limiting steps, that dilution of translation factors is a limitation of CFPS, and that CFPS is a useful platform for making novel observations about translation. © 2005 Wiley Periodicals, Inc.
Primary endocrine tumours of the liver
Authors: Maire F , Couvelard A , Vullierme M P , Kianmanesh R , O'Toole D , Hammel P , Belghiti J , Ruszniewski P
Published: June 2005

Background

In patients with hepatic endocrine tumours, a primary neoplasm is not always found elsewhere despite extensive investigations, raising the possibility that the hepatic lesion is the primary tumour. The aim of this study was to assess the incidence, characteristics and prognosis of patients with primary hepatic endocrine tumours.

Methods

Patients with histologically confirmed hepatic endocrine tumours identified since 1993 were reviewed. All those with no primary tumour identified by computed tomography of the thorax, abdomen and pelvis, upper and lower digestive endoscopy, duodenopancreatic endoscopic ultrasonography or somatostatin receptor scintigraphy (SRS) were included. Clinical and tumour characteristics were assessed retrospectively.

Results

Of 393 patients with digestive endocrine tumours, 17 (seven men; median age 55 (range 26–69) years) had hepatic endocrine tumours without evidence of an extrahepatic primary lesion either at diagnosis or during a median follow-up of 43 (range 12–108) months. Ten patients had multiple and seven had single tumours. The tumours were non-functional in 13 patients and well differentiated in 14 patients. SRS was positive in the liver in 11 patients. Curative resection was performed in seven. Overall actuarial survival rates were 100, 69 and 51 per cent at 1, 3 and 5 years respectively. Only poor differentiation was associated with an unfavourable outcome (relative risk 20·8; P < 0·001).

Conclusion

Primary hepatic endocrine tumours were identified in almost 5 per cent of patients with digestive endocrine tumours. Poor differentiation was the only factor associated with unfavourable outcome.
Fine‐Tuning the Electronic Properties of Highly Stable Organometallic CuIII Complexes Containing Monoanionic Macrocyclic Ligands
Authors: Xifra Raül , Ribas Xavi , Llobet Antoni , Poater Albert , Duran Miquel , Solà Miquel , Stack T. Daniel. P. , Benet‐Buchholz Jordi , Donnadieu Bruno , Mahía José , Parella Teodor
Published: June 2005

A family of highly stable organometallic CuIII complexes with monoanionic triazamacrocyclic ligands (Li) with general formula [CuLi]+ have been prepared and isolated, and their structural, spectroscopic, and redox properties thoroughly investigated. The HLi ligands have been designed in order to understand and quantify the electronic effects exerted by electron donor and electron‐withdrawing groups on either the aromatic ring or the central secondary amine or on both. In the solid state the CuIII complexes were mainly characterized by single‐crystal X‐ray diffraction analysis, whereas in solution their structural characterization was mainly based on 1H NMR spectroscopy given the diamagnetic nature of the d8 square‐planar CuIII complexes. Cyclic voltammetry together with 1H NMR and UV/Vis spectroscopy have allowed us to quantify the electronic effects exerted by the ligands on the CuIII metal center. A theoretical analysis of this family of CuIII complexes has also been undertaken by DFT calculations to gain a deeper insight into the electronic structure of these complexes, which has in turn allowed a greater understanding of the nature of the UV/Vis transitions as well as the molecular orbitals involved.
A Simple Thermodynamic Model for Quantitatively Addressing Cooperativity in Multicomponent Self‐Assembly Processes—Part 1: Theoretical Concepts and Application to Monometallic Coordination Complexes and Bimetallic Helicates Possessing Identical Binding Sites
Authors: Hamacek Josef , Borkovec Michal , Piguet Claude
Published: June 2005

A thermodynamic model has been developed for quantitatively estimating cooperativity in supramolecular polymetallic [MmLn] assemblies, as the combination of two simple indexes measuring intermetallic (${I{{{\rm MM}\hfill \atop {\rm c}\hfill}}}$) and interligand (${I{{{\rm LL}\hfill \atop {\rm c}\hfill}}}$) interactions. The usual microscopic intermolecular metal–ligand affinities (${f{{{\rm M}{\rm \char44}{\rm L}\hfill \atop i\hfill}}}$) and intermetallic interaction parameters (uMM), adapted to the description of successive intermolecular binding of metal ions to a preorganized receptor, are completed with interligand interactions (uLL) and effective concentrations (ceff), accounting for the explicit free energy associated with the aggregation of the ligands forming the receptor. Application to standard monometallic pseudo‐octahedral complexes [M(L)n(H2O)(6‐n)] (M=Co, Ni, Hf, L=ammonia, fluoride, imidazole, n=1–6) systematically shows negative cooperativity (uLL<1), which can be modulated by the electronic structures, charges, and sizes of the entering ligands and of the metal ions. Extension to the self‐assembly of more sophisticated bimetallic helicates possessing identical binding sites is discussed, together with the origin of the positively cooperative formation of [Eu2(L3)3].
New Layered Rubidium Rare‐Earth Selenides: Syntheses, Structures, Physical Properties, and Electronic Structures for RbLnSe2.
Authors: Deng Bin , Ellis Donald E. , Ibers James A.
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
The Ternary Stannides MgRuSn4 and MgxRh3Sn7‐x (x = 0.98—1.55).
Authors: Schlueter Martin , Kunst Andreas , Poettgen Rainer
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
Accurate Structure of LiAlD4 Studied by Combined Powder Neutron and X‐Ray Diffraction
Authors: Hauback B. C. , Brinks H. W. , Fjellvaag H.
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
Hypohalite Ion Catalysis of the Disproportionation of Chlorine Dioxide.
Authors: Wang Lu , Wargerum Dale W.
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
γ‐Hydroxy‐α,β‐alkenenitriles: Chelation‐Controlled Conjugate Additions.
Authors: Fleming Fraser F. , Wang Qunzhao , Zhang Zhiyu , Steward Omar W.
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
1‐Cyanoazoles in Reactions with Ethyl Glycinate.
Authors: Labazova O. N. , Purygin P. P.
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
Reaction of 3‐Cyano‐2‐amino‐4,5,6,7‐tetrahydrobenzo[b]thiophene with Enaminonitriles.
Authors: Mohareb Rafat M. , Al‐Omran Fatma A. , Ho Jonathan Z.
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
High‐Speed Heck Reactions in Ionic Liquid with Controlled Microwave Heating.
Authors: Vallin Karl S. A. , Emilsson Per , Larhed Mats , Hallberg Anders
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
Efficient Method for Tetrahydropyranylation/Depyranylation of Phenols and Alcohols Using a Solid Acid Catalyst with Wells—Dawson Structure.
Authors: Romanelli Gustavo P. , Baronetti Graciela , Thomas Horacio J. , Autino Juan C.
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
A Fast and Practical Approach to Tetrahydropyranylation and Depyranylation of Alcohols Using Indium Triflate.
Authors: Mineno Tomoko
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
Fischer Chromium Carbene Complexes as Nucleophiles in Palladium‐Catalyzed Allylic Substitution Reactions.
Authors: Drahonovsky Dusan , Borgo Vincent , Dvorak Dalimil
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
Regioselective Michael Addition of Thiols to Tertiary Fumaric Amide Esters.
Authors: Kamimura Akio , Murakami Norikazu , Yokota Kakuteru , Shirai Masashi , Okamoto Hiroaki
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
A Novel Reduction of Sodium Alkyl Thiosulfates Using Samarium Metal Without an Activating Agent in Water.
Authors: Wang Lei , Li Pinhua , Zhou Li
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
Regioselective Reaction of a Cyclic Baylis—Hillman Adduct with Alcohols and Thiols.
Authors: Gatri Rafik , Rezgui Farhat , El Gaied Mohamed Moncef
Published: June 2005

For Abstract see ChemInform Abstract in Full Text.
Cycloaddition of Cyclohexa‐2,4‐dienones with Electron Deficient 2π Partners: A Novel and Stereoselective Route to Functionalized Bicyclo[2.2.2]octenones.
Authors: Singh Vishwakarma , Pal Shantanu , Mobin Shaikh M.
Published: June 2005

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A Novel Reactivity Pattern of Nitro‐benzofuroxans and ‐benzofurazans: The Heterodienic Behavior of the Five‐Membered Ring.
Authors: Goumont Regis , Sebban Muriel , Terrier Francois
Published: June 2005

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Addition of Allyltributylstannane to Schiff Bases in the Presence of SnCl4.
Authors: Liang Y.‐M. , Sun Y.‐J. , Wu X.‐L. , Ma Y.‐X.
Published: June 2005

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Facile Synthesis of Enantiopure Tricyclic Furanyl Derivatives via Tungsten‐Mediated Cycloalkenation Reactions and Diels—Alder Reactions.
Authors: Huang Heh‐Lung , Huang Heh‐Chang , Liu Rai‐Shung
Published: June 2005

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Syntheses of and Photochemical Studies of 2,3‐Disubstituted 1,4‐Epoxy‐1,4‐dihydronaphthalenes.
Authors: Altundas Aliye , Kara Yunus , Secen Hasan , Akbulut Nihat
Published: June 2005

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Diisopropylaminoisocyanide and DMAD in Multiple Component Reactions (MCRs): Novel Synthesis of Substituted 1‐Amino‐3‐pyrrolin‐2‐ones by Reaction with Aldehydes and Dicarbonyl Compounds.
Authors: Nair Vijay , Mathen Joseph Swaroop , Viji S. , Srinivas R. , Nandakumar M. V. , Varma Luxmi
Published: June 2005

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Synthesis and Primary Cytotoxicity Evaluation of New 5‐Bromo‐3‐substituted‐hydrazono‐1H‐2‐indolinones.
Authors: Karali Nilguen , Terzioglu Nalan , Guersoy Aysel
Published: June 2005

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Acylotropy in the Cyclocondensation of Acetothioacetanilide with Benzhydrazide.
Authors: Dzvinchuk I. B. , Kartashov S. A. , Vypirailenko A. V. , Lozinskii M. O.
Published: June 2005

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Carbodiimide Mediated Synthesis of 4‐Thiazolidinones by One‐Pot Three‐Component Condensation.
Authors: Srivastava Tumul , Haq W. , Katti S. B.
Published: June 2005

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Synthesis and anti‐HIV Activity of 2,3‐Diaryl‐1,3‐thiazolidin‐4‐(thi)one Derivatives.
Authors: Rao Angela , Carbone Anna , Chimirri Alba , De Clercq Erik , Monforte Anna Maria , Monforte Pietro , Pannecouque Christophe , Zappala Maria
Published: June 2005

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Intramolecular Coupling Between Cyclohexadiene—Fe(CO)3 Complexes and Pendant Alkenes: Formation of Azaspiro[5,5]undecane Derivatives.
Authors: Pearson Anthony J. , Wang Xiaolong
Published: June 2005

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Antimicrobial Activity of Some N‐Alkyl Substituted of (E)‐4‐Azachalconium and (E)‐3′‐Hydroxy‐4‐azachalconium Bromides.
Authors: Nowakowska Zdzislawa , Wyrzykiewicz Elzbieta , Kedzia Bogdan
Published: June 2005

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Synthesis of New Substituted Dihydropyridones
Authors: Skuratova M. I. , Fedotova O. V. , Reshetov P. V.
Published: June 2005

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A Muenchnonimine‐Based Method for the Synthesis of 3,6‐Diaryl‐2(1H)‐pyridones.
Authors: Burger Sylvain , Monnier‐Jobe Karin , Perrin Sandrine , Laude Bernard
Published: June 2005

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Preparation of 6‐Fluoro‐8‐quinolinol and Related 6‐Fluoroquinolines.
Authors: Gershon Herman , Clarke Donald D. , Gershon Muriel
Published: June 2005

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Synthesis and Antibacterial Properties of Pyrimidopyrimidines.
Authors: Cieplik Jerzy , Pluta Janusz , Gubrynowicz Olaf
Published: June 2005

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Synthesis of N,N′‐Alkylated Tetrahydroquinoxalines by the Reaction of 4‐Bromo‐5‐nitrophthalonitrile with Secondary Diamines.
Authors: Abramov I. G. , Smirnov A. V. , Abramova M. B. , Ivanovskii S. A. , Belysheva M. S.
Published: June 2005

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SN1‐Like Reactions of Bicyclic α‐Amino Ethers with Sulfur, Nitrogen, and Carbon Nucleophiles. Synthesis of 1‐Azabicyclo[3.2.2]nonanes Functionalized at Carbon C2 and C6 with Complete Stereocontrol.
Authors: Roeper Stefanie , Wartchow Rudolf , Hoffmann H. Martin R.
Published: June 2005

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Facile Synthesis of Model 1,4‐Dihydro‐1H‐1,3,4‐benzotriazepin‐5‐ones.
Authors: Abu Thaher Bassam A. , Zahra Jalal A. , El‐Abadelah Mustafa M.
Published: June 2005

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Preparation of New Type of Azacalixarene, Azacalix[n](2,6)pyridine.
Authors: Miyazaki Yuko , Kanbara Takaki , Yamamoto Takakazu
Published: June 2005

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Asymmetric Synthesis of α‐Amino Carbonyl Derivatives Using Lithium (R)‐N‐Benzyl‐N‐α‐methylbenzylamide.
Authors: Davies Stephen G. , Epstein Simon W. , Garner A. Christopher , Ichihara Osamu , Smith Andrew D.
Published: June 2005

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One‐Pot Synthesis of 1‐exo‐Alkylidene‐2,3‐anhydro Furanoses: Convenient Precursors for exo‐Glycals and Functionalized C‐Glycals.
Authors: Gomez Ana M. , Pedregosa Ana , Valverde Serafin , Lopez J. Cristobal
Published: June 2005

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Tandem Ring‐Closing Metathesis and Hydrogenation Towards Cyclic Dinucleotides.
Authors: Boersting Philip , Nielsen Poul
Published: June 2005

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An Enantioselective Synthetic Pathway Towards Plakortones.
Authors: Lee Hing Ken , Wong Henry N. C.
Published: June 2005

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New Magnetic Functionalities Presented by Prussian Blue Analogues
Authors: Ohkoshi Shin‐Ichi , Hashimoto Kazuhito
Published: June 2005

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Electrons at Work in Prussian Blue Analogues
Authors: Verdaguer M. , Galvez N. , Garde R. , Desplanches C.
Published: June 2005

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Dendrimers as Support for Recoverable Catalysts and Reagents
Authors: van Heerbeek Rieko , Kamer Paul C. J. , van Leeuwen Piet W. N. M. , Reek Joost N. H.
Published: June 2005

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Polymeric Membranes in Catalytic Reactors
Authors: Vankelecom Ivo F. J.
Published: June 2005

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Photocatalysis with Organized Systems for the Oxofunctionalization of Hydrocarbons by O2
Authors: Maldotti Andrea , Molinari Alessandra , Amadelli Rossano
Published: June 2005

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Metal‐Mediated Reductive Hydrodehalogenation of Organic Halides
Authors: Alonso Francisco , Beletskaya Irina P. , Yus Miguel
Published: June 2005

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C‐Glycosylation
Authors: Gyorgydeak Zoltan , Pelyvas Istvan F.
Published: June 2005

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Properties of Polysaccharides
Authors: Witczak Zbigniew J.
Published: June 2005

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New Conjugated π‐Systems Incorporating Phosphole Rings
Authors: Hay Caroline , Sauthier Mathieu , Hissler Muriel , Nyulaszi Laszlo , Reau Regis
Published: June 2005

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The New Data for the Reaction of Arylenedioxy Trihalogenophosphoranes with Alkyl‐ and Arylacetylenes
Authors: Mironov Vladimir F. , Shtyrlina Alfiya A. , Petrov Ravil R. , Baronova Tamara A. , Alekseev Fedor F. , Varaksina Elena N. , Konovalov Aleksander I.
Published: June 2005

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Seven‐Membered Rings
Authors: Bremner John B.
Published: June 2005

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General Aspects of Polysaccharides
Authors: Nishimura Shin‐ichiro
Published: June 2005

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The Scope and Future of Traceless Synthesis in Organic Chemistry
Authors: Phoon C. W. , Sim M. M.
Published: June 2005

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Reactions and Molecular Self‐Assemblies Based on Interactions Between Chalcogen Atoms
Authors: Kobayashi Kenji
Published: June 2005

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Structures and Properties of NbOF3 and TaOF3 — With a Remark to the O/F Ordering in the SnF4 Type Structure.
Authors: Koehler J. , Simon A. , van Wuellen L. , Cordier S. , Roisnel T. , Poulain M. , Somer M.
Published: June 2005

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A New Polyoxocobaltate(II) Anion in Rb2Co2O3.
Authors: Sofin Mikhail , Peters Eva Maria , Jansen Martin
Published: June 2005

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Subsolidus Relations in the BaO—La2O3—V2O5 Phase Diagram.
Authors: Skellern M. G. , Skakle J. M. S.
Published: June 2005

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Crystal Structure and Phase Relationships in the Pseudobinary System Nd5Si4—Nd5Ge4.
Authors: Yang H. F. , Rao G. H. , Liu G. Y. , Ouyang Z. W. , Liu W. F. , Feng X. M. , Chu W. G. , Liang J. K.
Published: June 2005

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Organically Templated Mixed‐Valent Iron Sulfates Possessing Kagome and Other Types of Layered Networks.
Authors: Paul Geo , Choudhury Amitava , Sampathkumaran E. V. , Rao C. N. R.
Published: June 2005

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Addition of Electrochemically Prepared Arylzinc Species onto Activated Olefins via a Cobalt Catalysis.
Authors: Gomes Paulo , Gosmini Corinne , Perichon Jacques
Published: June 2005

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Asymmetric Synthesis of 1,2,3‐Trisubstituted Cyclopentanes and Cyclohexanes as Key Components of Substance P Antagonists.
Authors: Kuethe Jeffrey T. , Wong Audrey , Wu Jimmy , Davies Ian W. , Dormer Peter G. , Welch Christopher J. , Hillier Michael C. , Huges David L. , Reider Paul J.
Published: June 2005

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Enantioselective Synthesis of Substituted Pyrrolidines by Dynamic Resolution.
Authors: Coldham Iain , Dufour Samuel , Haxell Thomas F. N. , Howard Steven , Vennall Graham P.
Published: June 2005

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Deacetylation of Activated Acetophenones with Tin(IV) Chloride.
Authors: Hadjeri Mohamed , Mariotte Anne‐Marie , Boumendjel Ahcene
Published: June 2005

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The Reactions of DMSO with Arylaldehydes in the Presence of Sodium Hydride.
Authors: Shi Min , Shen Yu‐Mei
Published: June 2005

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Novel Catalytic CO2 Incorporation Reaction: Nickel‐Catalyzed Regio‐ and Stereoselective Ring‐Closing Carboxylation of Bis‐1,3‐dienes.
Authors: Takimoto Masanori , Mori Miwako
Published: June 2005

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Regioselectivity in the Intramolecular Allyl Transfer Reaction Catalyzed by Electrogenerated Nickel Complexes: Influence of Metal Ions.
Authors: Franco Delphine , Dunach Elisabet
Published: June 2005

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Pd‐Catalyzed Decarbonylative Heck Olefination of Aromatic Carboxylic Acids Activated in situ with Di‐tert‐butyl Dicarbonate.
Authors: Goossen Lukas J. , Paetzold Jens , Winkel Lars
Published: June 2005

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Stereocontrolled Preparation of 1,2‐Diol with Quaternary Chiral Center.
Authors: Murata Yoshihisa , Kamino Tomoyuki , Hosokawa Seijiro , Kobayashi Susumu
Published: June 2005

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Highly Efficient Allylation of Aldehydes and Three‐Component Synthesis of Homoallylamines Using Bismuth Triflate Catalyst.
Authors: Choudary Boyapati M. , Chidara Sridhar , Sekhar Ch. V. Raja
Published: June 2005

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A Novel Reductive Cyclization of Arylidenecyanoacetate Induced by the TiCl4/Sm System.
Authors: Shi Daqing , Zhao Hong , Wang Xiangshan , Yao Changsheng , Zhou Longhu
Published: June 2005

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Reductive Cyclodimerization of Arylmethylidenemalononitriles Promoted by Sm/InCl3×4H2O System in Aqueous Media: Highly Stereoselective Synthesis of Cyclopentamine Derivatives.
Authors: Wu Huayue , Ding Jinchang
Published: June 2005

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Studies on the Chemistry of Thienoanellated O,N‐ and S,N‐Containing Heterocycles. Part 25. Synthesis of New Imidazolyl and Pyrazolyl Derivatives of Thiophene as Inhibitors of Nitric Oxide Synthase.
Authors: Erker Thomas , Galanski Maria E. , Galanski Mathea Sophia
Published: June 2005

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Acylation Products of N‐Phenyl‐2‐(5‐tert‐butyl‐2‐thienyl)succinimide.
Authors: Bogza S. L. , Malienko A. A. , Suikov S. Yu. , Kobrakov K. I. , Dulenko V. I.
Published: June 2005

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Synthesis of Dihydrothiophene Derivatives as Metabolites of Esonarimod.
Authors: Noguchi Toshiya , Onodera Akira , Tomisawa Kazuyuki , Yokomori Sadakazu
Published: June 2005

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A New Strategy for 2‐Substituted Indolylalkylamines: Synthesis of 2‐Aryldihomotryptamines.
Authors: Nenajdenko Valentine G. , Zakurdaev Eugene P. , Balenkova Elizabeth S.
Published: June 2005

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Synthesis and Reactivity of (Z)‐3‐Benzoylamino‐4‐dimethylamino‐2‐oxo‐3‐butene. Preparation of 1‐Aryl‐ and 1‐Heteroaryl‐Substituted 4‐Benzoylamino‐5‐methyl‐1H‐pyrazoles.
Authors: Bratusek Urska , Recnik Simon , Svete Jurij , Golic Ljubo , Stanovnik Branko
Published: June 2005

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Ytterbium Metal Promoted Reaction of Disulfides with 2‐Oxoimidazolidine‐1‐carbonyl Chlorides.
Authors: Su Weike , Gao Ning , Zhang Yongmin , Zhu Junfei
Published: June 2005

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Combinatorial Synthetic Design. Solution and Polymer‐Supported Synthesis of Heterocycles via Intramolecular Aza Diels—Alder and Imino Alcohol Cyclizations.
Authors: Spaller Mark R. , Thielmann Wolfgang T. , Brennan Paul E. , Bartlett Paul A.
Published: June 2005

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Synthesis and Reactions of 6‐Methylsulfanyl‐2,4‐dithioxo‐1,2,3,4‐tetrahydropyrimidin‐5‐carbonitrile .
Authors: Briel Detlef , Franz Tanja , Dobner Bodo
Published: June 2005

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Regioselective Preparation of Pterin 6‐Triflate and Its Application to 6‐Substituted Pterin Synthesis.
Authors: Kujime Masato , Kudoh Kazunari , Murata Shizuaki
Published: June 2005

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Synthesis of Heteromacrocycles Containing 2‐Imino‐5‐mercapto‐2,3‐dihydro‐1,3,4‐thiadiazoles as a Subunit.
Authors: Cho Nam Sook , Oh Jin Gap , Hwang Hye Jeong , Kim Jin‐Guy , Suh Il‐Hwan
Published: June 2005

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A Simple and New Method for the Synthesis of Thiophosphates.
Authors: Kaboudin Babak
Published: June 2005

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Novel Stereospecific Dehydration of β‐Hydroxy‐α‐amino Acids Using Martin′s Sulfurane.
Authors: Yokokawa Fumiaki , Shioiri Takayuki
Published: June 2005

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Synthesis and Biological Evaluation of 6‐Bromo‐6‐Substituted Penicillanic Acid Derivatives as β‐Lactamase Inhibitors.
Authors: Bedini A. , Balsamini C. , Di Giacomo B. , Tontini A. , Citterio B. , Giorgi L. , Di Modugno E. , Tarzia G.
Published: June 2005

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The Junjappa—Ila (JI) Heteroaromatic Annulation: A New General α‐Oxoketene Dithioacetal Mediated Inverse Method for the Synthesis of Benzo/Condensed Heterocycles and Related Heteroaromatization Processes
Authors: Ila H. , Junjappa H. , Mohanta P. K.
Published: June 2005

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