bluuebunny/crossref_metadata_2025_split huggingface dataset:
New Tacrine‐Hydrazinonicotinamide Hybrids as Acetylcholinesterase Inhibitors of Potential Interest for the Early Diagnostics of Alzheimer′s Disease.
Authors: Szymanski P. , Zurek E. , Mikiciuk‐Olasik E. 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of 5‐Heterocyclic Substituted Quinazolin‐4‐ones via 2‐Aminobenzonitrile Derivatives.
Authors: Fray M. Jonathan , et al. et al. 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
4,6‐Dinitroanthranilic Acid and Benzo‐Fused Six‐Membered Heterocycles on Its Basis.
Authors: Kislyi K. A. , Samet A. B. , Semenov V. V. 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and in vitro Cytotoxic Activity of Novel 6‐Chloro‐1,1‐dioxo‐1,4,2‐benzodithiazin‐3‐ylhydrazine Derivatives.
Authors: Pomarnacka E. , Bednarski P. J. , Grunert R. , Brzozowski Z. , Lach J. 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Matrix Compare Analysis Discriminates Subtle Structural Differences in a Family of Novel Antiproliferative Agents, Diaryl‐3‐hydroxy‐2,3,3a,10a‐tetrahydrobenzo[b]cyclopenta [e]azepine‐4,10(1H,5H)‐diones.
Authors: Kunick Conrad , Bleeker Carola , Pruehs Christian , Totzke Frank , Schaechtele Christoph , Kubbutat Michael H. G. , Link Andreas 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Characterization of Cu‐ZSM‐5 Prepared by Solid‐State Ion Exchange of H‐ZSM‐5 with CuCl.
Authors: Zhang Yihua , Drake Ian J. , Bell Alexis T. 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Indoline Derivatives. Part 1. Synthesis and Factor Xa (FXa) Inhibitory Activities.
Authors: Noguchi Tetsuji , Tanaka Naoki , Nishimata Toyoki , Goto Riki , Hayakawa Miho , Sugidachi Atsuhiro , Ogawa Taketoshi , Asai Fumitoshi , Matsui Yumi , Fujimoto Koichi 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Correlation Between Electronic Properties and Hydrodesulfurization Activity of 4d‐Transition‐Metal Sulfides.
Authors: Oviedo‐Roa Raul , Martinez‐Magadan Jose‐Manuel , Illas Francesc 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Effect of 10 MPa Ammonia Treatment on the Activity of Visible Light Responsive Ta3N5 Photocatalyst.
Authors: Lee Yungi , Nukumizu Kota , Watanabe Tomoaki , Takata Tsuyoshi , Hara Michikazu , Yoshimura Masahiro , Domen Kazunari 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Simple Iodination Protocol via in situ Generated ICl Using NaI/FeCl3.
Authors: Mohanakrishnan Arasambattu K. , Prakash Chandran , Ramesh Neelamegam 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Application of a Fluorous Lawesson′s Reagent: Convenient Chromatography‐Free Product Purification.
Authors: Kaleta Zoltan , Tarkanyi Gabor , Goemoery Agnes , Kalman Ferenc , Nagy Tamas , Soos Tibor 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reaction of Aromatic Aldehydes with β‐Dicarbonyl Compounds in a Catalytic System: Piperidinium Acetate — 1‐Butyl‐3‐methylimidazolium Tetrafluoroborate Ionic Liquid.
Authors: Putilova E. S. , Troitskii N. A. , Zlotin S. G. 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Selective Catalytic Activity of Ball‐Shaped Pd@MCM‐48 Nanocatalysts.
Authors: Lee Hee‐Yoon , Ryu Suyoung , Kang Hongkyu , Jun Young‐wook , Cheon Jinwoo 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Sulfoximines as Ligands in Copper‐Catalyzed Asymmetric Vinylogous Mukaiyama‐Type Aldol Reactions.
Authors: Remy Pauline , Langner Martin , Bolm Carsten 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Characterization of Dithia[3.3](2,6)pyridinophane‐Containing Polymers: Application to the Palladium‐Catalyzed Heck Reaction.
Authors: Morisaki Yasuhiro , Ishida Tamao , Chujo Yoshiki 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Highly Selective Cascade Approach to Diverse Aromatic Ring Systems from Simple Aromatic Aldehydes and Propiolates.
Authors: Wang Yan‐Guang , Cui Sun‐Liang , Lin Xu‐Feng 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereoselective Synthesis of 3,4‐trans‐Disubstituted Pyrrolidines and Cyclopentanes via Intramolecular Radical Cyclizations Mediated by CAN.
Authors: Nair Vijay , Mohanan Kishor , Suja T. D. , Suresh Eringathodi 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cyclocondensation of Amidines with Dimethyl Acetylenedicarboxylate: A Convenient Entry into Tetramic Acids.
Authors: Erden Ihsan , Ozer Galip , Hoarau Christophe , Cao Weiguo 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Regioselective and Versatile Synthesis of Indoles via Intramolecular Friedel—Crafts Heteroannulation of Enaminones.
Authors: del Carmen Cruz Maria , Jimenez Fabiola , Delgado Francisco , Tamariz Joaquin 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of 3,3′‐Disubstituted‐2,2′‐biindolyls Through Sequential Palladium‐Catalyzed Reactions of 2,2,2‐Trifluoro‐N‐(2‐(4‐ [2,2,2‐trifluoro‐acetylamino‐phenyl]‐buta‐1,3‐diynyl)‐phenyl)acetamide with Organic Halides/Triflates.
Authors: Abbiati Giorgio , Arcadi Antonio , Beccalli Egle , Bianchi Gabriele , Marinelli Fabio , Rossi Elisabetta 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
One‐Pot Synthesis Using Supported Reagents System KSCN/SiO2—RNH3OAc/Al2O3: Synthesis of 2‐Aminothiazoles and N‐Allylthioureas.
Authors: Aoyama Tadashi , Murata Sumiko , Arai Izumi , Araki Natsumi , Takido Toshio , Suzuki Yoshitada , Kodomari Mitsuo 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Efficient Synthesis of Pharmacologically Active Derivatives of 1,3,4‐Oxadiazoles.
Authors: Kamble Ravindra R. , Sudha Belagur S. 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Selectfluor: A Simple and Efficient Catalyst for the Synthesis of Substituted Coumarins under Solvent‐Free Conditions.
Authors: Kumar B. Sunil , Reddy Y. Thirupathi , Reddy P. Narsimha , Kumar P. S. , Rajitha B. 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
4‐Hydroxyquinol‐2‐ones. Part 87. Unusual Synthesis of 1‐R‐4‐Hydroxy‐2‐oxo‐1,2‐dihydroquinoline‐3‐carboxylic Acid Pyridylamides.
Authors: Ukrainets I. V. , Sidorenko L. V. , Slobodzyan S. V. , Rybakov V. B. , Chernyshev V. V. 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Antibacterial Studies of 6‐Aryl‐2,2a‐dihydro‐naphtho[2′,1′‐5,6]pyrano[4,3‐e][1,2,4]triazolo [3,4‐b][1,3,4]thiadiazine and Its Derivatives.
Authors: Karnik A. V. , Malviya N. J. , Kulkarni A. M. , Jaimini D. , Jadhav B. L. 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Metachromins J and K, New Sesquiterpenoids from Marine Sponge Spongia Species.
Authors: Takahashi Yohei , Tsuda Masashi , Fromont Jane , Kobayashi Jun'ichi 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Multisensor Systems of the Electronic Tongue Type as Novel Opportunities in Design and Application of Chemical Sensors
Authors: Vlasov Yu. G. , Legin A. V. , Rudnitskaya A. M. 
Published: July 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Dynamical magnetic effects in photoexcited ferromagnetic semiconductors
Authors: Chovan J. , Kavousanaki E. G. , Perakis I. E. 
Published: July 2006

AbstractWe develop a theory of photoinduced dynamical magnetic effects in III‐Mn‐V ferromagnetic semiconductors valid in presence of strong carrier spin relaxation and dephasing. We treat relaxation by using the Lindblad semigroup method and calculate the nonlinear response numerically. We predict Mn‐spin relaxation and precession towards the direction determined by nonlinear optical polarization. These effects occur during the pulse. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Excitation dependence of the homogeneous linewidths in quantum dots
Authors: Lorke M. , Seebeck J. , Nielsen T. R. , Gartner P. , Jahnke F. 
Published: July 2006

AbstractA microscopic theory is used to study the optical properties of semiconductor quantum dots. The dephasing of a coherent excitation and line‐shifts of the interband transitions due to carrier‐carrier Coulomb interaction and carrier‐phonon interaction are determined from a quantum kinetic treatment of correlation processes. In this work we are investigating the density dependence of the homogeneous linewidth of both quantum dot and wetting layer resonances as a function of the carrier density in the system. It was discussed previously in bulk and quantum well systems the linewidth depends on the excitation density via a power law. We find a similar density dependence of the dephasing also for the ground state interband transitions in quantum dot systems. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Weak and strong coupling limits for quantum well polaritons
Authors: Creatore C. , Ivanov A. L. 
Published: July 2006

AbstractThe strong and weak coupling regimes are analyzed for quantum well excitons interacting with the light field. The strong‐weak coupling transition point is described and quantified in terms of a discrete topological change (from an intersection to an anticrossing) of the quantum well polariton dispersion curves, which occurs at a critical damping rate of excitons. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Coherently controlled polaritonic four‐wave‐mixing polarization in a ZnSe/ZnSSe heterostructure
Authors: Kudyk Iryna , Wischmeier Lars , Voss Tobias , Rückmann Ilja , Gutowski Jürgen 
Published: July 2006

AbstractThe coherent optical control of four‐wave‐mixing (FWM) polaritonic polarization in a heterostructure containing a 25 nm thin active ZnSe layer is studied. For the first‐order direction of diffraction 2k1‐k2 the phase‐locked pulse pair contributes quadratically to the FWM signal, and the separate control of polariton modes is observed. In contrast to that, in the direction 2k2‐k1 the pulse pair contributes linearly to the FWM signal and the polariton modes are simultaneously controlled, only. The coherent control of polaritonic FWM polarization in both diffraction directions can be explained in terms of the two‐polariton coherences and of Pauli blocking. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Controlled interference effects of spatial reproduction and multiplication for electron waves in semiconductor 2D nanostructures
Authors: Petrov V. , Nikitin A. 
Published: July 2006

AbstractSpatial nonhomogeneity effects for the probability current density jx (x, z) (or quantum‐mechanical current density ejx (x, z), e being an electron charge) in semiconductor 2D nanostructures in the form of joints in the direction of propagation of the electron wave (the x ‐axis) of narrow and wide rectangular quantum wells (QWs) and the possibility to control these effects by the transverse constant electric field strength F in the wide QW have been theoretically studied. It was shown that at F = 0 transverse distribution jx (0, z) existing at the entry of the wide QW is reproduced with some accuracy at a definite distance X 1 from the joint and splits in symmetric (along the z ‐axis) 2D nanostructures into p identical profiles of the intensity lower by p times at the distance K 1/p . This picture is reproduced periodically in cross‐sections Kq = qX 1 (coefficients q and p being integers). It was shown that the electric field varies strongly in reproduction and multiplication pictures. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Nonlinear excitation kinetics of biased quantum wells: Coherent dynamical screening effect
Authors: Turchinovich D. , Uhd Jepsen P. 
Published: July 2006

AbstractIn this paper we describe a strongly nonlinear process of ultrafast photoexcitation of a biased quantum well. This process is governed by coherent dynamical screening, where the instantaneously polarized photoexcited carriers screen initial bias field. This results in a dynamic modification of the bandstructure of the quantum well, which is totally coherent with the temporal intensity distribution in the excitation laser pulse. We developed a time‐resolved theoretical model of coherent dynamical screening, which predicts interesting fundamental consequences, such as nonlinear absorption and ultra‐broadband THz emission. The results of our THz and optical experiments are in good agreement with the theoretical model. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Phase resolved polariton interferences in a ZnSe‐ZnSSe heterostructure
Authors: Seemann M. , Kieseling F. , Stolz H. , Manzke G. , Henneberger K. , Passow T. , Hommel D. 
Published: July 2006

AbstractApplying the method of spectral interferometry we analyze amplitude and phase of reflected light at a ZnSe‐ZnSxSe1–x heterostructure. Beside the 1s‐heavy hole (hh), the 2s‐heavy hole and the 1s‐light hole (lh) excitons a series of peaks are found in the amplitude caused by interfering polariton modes propagating through the ZnSe layer. The phase shows pronounced changes at the corresponding energies. A strong increase by 2π appears for lower hh‐ and lh‐polariton modes. The behavior can be explained considering spatial dispersion in the dielectric model, Pekar's additional boundary conditions for the polariton propagation and a penetration of the excitonic polarization into the cladding layers. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Interplay of electron‐phonon and Coulomb interaction in semiconductor quantum dots
Authors: Förstner J. , Knorr A. , Moloney J. V. 
Published: July 2006

AbstractWe theoretically study the biexciton‐phonon interaction in strongly confined semiconductor quantum dots. For spectrally narrow single‐pulse excitation generation of biexcitonic occupations is only possible via a two‐photon cascade, which exhibits renormalized Rabi oscillations and spectrally compressed phononsidebands. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Solid‐Phase Synthesis and Structural Study of Substituted 1,4,5,6‐Tetrahydro‐6‐oxopyridine‐3‐carboxylic Acids
Authors: Rodríguez Hortensia , Martín Osnieski , Ochoa Estael , Suárez Margarita , Reyes Osvaldo , Garay Hilda , Albericio Fernando , Martín Nazario 
Published: July 2006

AbstractAn efficient solid‐phase approach to prepare substituted 1,4,5,6‐tetrahydro‐6‐oxopyridines bearing a carboxylic acid group on C3 has been developed. The four‐step protocol involves an initial acetoacetylation of polystyrene Wang resin, followed by preparation of resin‐bound enamine. The cyclization reactions were carried out by reacting immobilized enamines with Knovenagel derivatives by a Hantzsch‐type heterocyclization. Acidolytic cleavage from the solid support rendered the desired heterocyclic compounds in excellent yields and high purity. The synthesized compounds were structurally characterized by spectroscopic methods. In order to gain a better understanding of the structure of the obtained heterocycles, theoretical calculations at the ab initio (B3LYP/6‐31G*) level were performed.
Network Approach to the Child With Primary Intestinal Failure
Authors: De Marco Giulio , Barabino Arrigo , Gambarara Manuela , Diamanti Antonella , Martelossi Stefano , Guarino Alfredo 
Published: July 2006

ABSTRACTIntestinal failure (IF) is a rare condition resulting from short gut and other heterogeneous intestinal diseases. Major centers in Italy merged in a national network to build common diagnostic and management approaches and to investigate the natural history of IF. Gastroenterological reference centers with specific expertise in intestinal morphology, diagnosis of autoimmune conditions, intestinal microbiology and parenteral nutrition were identified to act as consultants to the network. These centers of expertise provided specific diagnostic approaches while ensuring high technical standards. The approach allowed each center to learn from a larger cohort of patient samples. A database was set up to investigate etiology, epidemiology and natural history of IF. A common diagnostic algorithm for intractable diarrhea was designed. This process was largely based on electronic communication among centers and specimen shipping. Etiologic diagnosis was obtained in almost all cases of IF secondary to severe protracted diarrhea. The study of the natural history of IF showed a close association between etiology of IF and its outcome. The natural history of IF also provided the starting point for specific therapeutic approaches to its complications such as parenteral nutrition‐associated cholestasis and catheter‐related sepsis. The network approach to IF provides an effective model to optimize resources and prospectively investigate the natural history of IF, essential steps to design interventions, including intestinal transplantation and improve the outcome of IF.
Development and progression of urothelial carcinoma
Authors: Kakizoe Tadao 
Published: July 2006

Urothelial carcinomas are well known to feature multifocal development in the urinary tract, both synchronously and asynchronously. This phenomenon can be explained by either seeding of cancer cells in the urinary tract or field cancerization. As there are two characteristic morphological patterns of urothelial carinomas, papillary and nodular, published papers were here reviewed to understand the development and progression of urothelial carcinoma regarding multifocality due to seeding or field changes with reference to the type of urothelial carcinoma. From animal experiments using rats, mice and dogs treated with N‐butyl‐N‐(4‐hydoroxybutyl) nitrosamine, and from pathological observation of human cystectomy specimens on step‐sectioning and molecular analysis, nodular carcinomas appear to either develop via papillary carcinomas or de novo. Clinical aspects of multifocal tumor development are outside of the scope of this review, although an understanding of the mechanisms underlying multifocality and the papillary/nodular morphological relationship is important to determine follow‐up strategies for patients treated for primary urothelial carcinomas and for reconstruction of the urinary tract after cystectomy. (Cancer Sci 2006; 97: 821–828)
South Korean Labor Market Discrimination Against Women: Estimating Its Cost
Authors: Monk‐Turner Elizabeth , Turner Charlie G. 
Published: July 2006

Abstract. South Korean chaebols (large family owned firms) have extensive government ties which provide them with favorable treatment. In turn, the government obtains support from the chaebols. The chaebols have gained economic or excess profits through exploiting monopolistic power in the domestic South Korean product market and through exploiting monopsonistic power in the domestic factor market.How a monopsonistic firm obtains excess profits is illustrated and related to the behavior of the chaebols as a whole. Major focus is on the labor market. The chaebols have discretionary power over how to exploit their monopsonistic position. The status of women in the South Korean work force in light of this discretionary power is considered. An estimate of the income loss involved is made.