bluuebunny/crossref_metadata_2025 huggingface dataset:
Thyroid hormone state and quality of life at long-term follow-up after randomized treatment of Graves’ disease
Authors: Abraham-Nordling Mirna , Wallin Göran , Lundell Göran , Törring Ove
Published: February 2007

Objective: In a 14–21 year follow-up of health-related quality of life (HRQL) outcome of 179 patients after randomized treatment of Graves’ disease (GD) with surgical, medical or radioiodine, we found no differences. The HRQL for Graves’ patients, however, was lower compared with a large age- and sex-matched Swedish reference population. We have now studied whether the reported HRQL-scores by Medical Outcome Study 36-item Short-Form Health Status Survey (SF36) and quality of life 2004 (QoL2004) answers were related to the thyroid hormone state of the patient.

Methods: This report comprises 91 of the original patients in which both the results of SF36 and QoL2004 questionnaire as well as serum thyroid hormones and current use of l-thyroxine treatment were available.

Results: A large number of the patients had low or undetectable serum TSH concentrations. SF36 scores and answers to QoL2004 questionnaires were not correlated to TSH levels or associated with suppressed TSH. A low free triiodothyronine was weakly associated with a low GH score (P < 0.02) and elevated thyrotropin receptor antibody with a low physical component summary (P < 0.02).

Conclusion: HRQL do not seem to be influenced by the thyroid hormone state of the patient including subclinical thyrotoxicosis. It is possible that the personality of GD patients as such may have resulted both in the development of GD and lower HQRL scores later on in life. Alternatively, the generic SF36 may not be a proper instrument to detect relevant differences in HRQL related to the thyroid state.
Timaios mítosza és a kozmológiai princípiumok
Authors: Hamvas Endre Ádám
Published: February 2007

Plótinos
az
Azok ellen, akik a világ teremtőjét rossznak, s a világot rútnak mondják

című művében azt írja, hogy a gnóstikusok nem tesznek mást, mint Platón
Timaios
át
magyarázzák félre. A cikkben ebből a kijelentésből kiindulva kísérlem meg felvázolni
azokat a problémákat, amelyek a
Timaios
kozmológiai leírásának hatására
jelentek meg a későbbi természetfilozófiai elképzelésekben a platonikus,
továbbá a gnóstikus és hermetikus kozmológiákban. E kérdésben alapvető a
Démiurgos alakjának szerepe, illetve a platóni befogadó fogalmának értelmezése.
A kérdés vizsgálata során először a platóni szöveg kozmológiai fogalmait (az
örök képmás-Démiurgos-befogadó) vizsgálom, majd vázolom, hogyan alakult át a
befogadó fogalom a későbbi platóni gyökerű filozófiák
anyag
, illetve
hely

terminusaivá. E fogalmi keretben válik érthetővé és vizsgálhatóvá a plótinosi
kijelentés. A gnóstikusokkal kapcsolatban annak a bemutatása a legfontosabb,
hogy a Plótinos által kárhoztatott dualisztikus kozmológiájuk - ahogyan azt
maga Plótinos erősíti meg - a platóni szöveg interpretációs lehetőségein
nyugszik. Az Asclepius című hermetikus dialógus jó példája annak, hogyan
jelenhet meg később az Isten mellett létező preegzisztens kozmológiai
princípium egyszerre, mint
anyag
és
hely
, míg a CH VIII. szöveg
szerinti párhuzamokat mutat a
Timaios
szal. Mindemellett természetesen
nem zárhatjuk ki más (főképpen keleti) hatások
lehetőségét, de a platóni filozófia fogalmainak vizsgálata jelentős
szempontokat adhat annak vizsgálatához, hogy milyen hatások játszhattak
szerepet a késő ókori dualista kozmológiák kialakulásában.
Effect of feeding T-2 toxin contaminated feed on the utilisation of vitamin E in chickens
Authors: Weber Maria , Stiller Sz. , Balogh K. , Wágner L. , Erdélyi Márta , Mézes M.
Published: February 2007

The purpose of the present study was to investigate the effect of experimental T-2 toxin load (2.35 mg/kg of feed) and vitamin E supply in the drinking water (10.5 mg/bird/day) on vitamin E levels of the blood plasma and liver in broiler chickens in a 14-day experiment. It was found that T-2 toxin load did not influence vitamin E content of the blood plasma except at day 3 after the toxin load when a moderate increase was detected in plasma vitamin E. No significant changes were found in vitamin E content of the liver. The simultaneous use of high-dose vitamin E supplementation and T-2 toxin load caused a significantly higher plasma vitamin E content but the changes were less expressed in the group subjected to T-2 toxin load. Vitamin E supply also resulted in a marked and significant increase in vitamin E concentrations of the liver on days 3 and 7 even in the T-2 loaded group, but this concentration significantly decreased thereafter. The results show that T-2 contamination of the diet has an adverse effect on the utilisation of vitamin E in broiler chickens.
Comparison of Nitrogen Management Zone Delineation Methods for Corn Grain Yield
Authors: Derby Nathan E. , Casey Francis X. M. , Franzen David W.
Published: February 2007

It is important for today's farmer to manage his fields efficiently to maximize economic return and minimize environmental impacts. Managing agricultural inputs based on spatial variability in a field may help to achieve these goals. The objective of this study was to develop and compare different N management zone delineation methods and investigate the effect that variable N fertilization directed by these zones had on corn (Zea mays L.) grain yield over 4 yr. The zone delineation methods were based on: (i) supervised classification of bare soil color; (ii) cluster analysis of soil N, apparent electrical conductivity (ECa), and 1 yr of yield data; or (iii) a summation of standardized ECa, elevation, and 5 yr of yield data. The different delineation methods resulted in relatively similar zone patterns. Applied N rates were mostly affected by varying yield goals due to low variability of soil test N between zones. The effect of zone method on yield was inconsistent over the study period, with the soil color zone yields corresponding best to hypothesized productivity potential. The uniform treatment yields were not significantly different than yields from most of the N management zones. Increases in applied N for management zone treatments resulted in small yet not statistically significant yield increases in most years, with economic benefits over the uniform treatment observed in 2 yr. Yield was affected by adverse weather conditions in 2 yr, resulting in significant increases in subsurface soil N and reduced economic benefits of zone management versus conventional management.
Swathing and Windrowing as Harvest Aids for Cuphea
Authors: Forcella Frank , Spokas Kurt , Gesch Russ W. , Isbell Terry A. , Archer David W.
Published: February 2007

Cuphea (Cuphea viscosissima Jacq. × C. lanceolata W.T. Aiton) is a potential new oilseed crop for temperate regions. Harvesting problems occur because current varieties are nondeterminate and shatter seeds. Because swathing may help overcome some of these problems, cuphea was swathed and allowed to dry in windrows for 0, 1, 2, 3, and 4 wk before combining. Measured variables at the time of combining were windrow weight, seed water content, seed yield, seed oil content, and post‐swathing evaporation (Eps). Windrow weights decreased from about 40 to 14 Mg ha−1 as combining was delayed until 3 wk after swathing. Weights decreased over time due to dehydration and leaf abscission, and they were associated hyperbolically with Eps. Similarly, seed water content decreased from about 670 g kg−1 at swathing to about 250 g kg−1 at 30 mm Eps. Seed shattering apparently was low as high yields were maintained each year until after at least 30 mm Eps. Seed oil content was affected only slightly by delayed combining dates. Thus, swathing and windrowing cuphea and delaying combining until 30 mm Eps substantially decreased the weight of material processed by the combine, reduced seed water content, but maintained high seed yields and seed oil contents.
Regression‐Based Evaluation of Ecophysiological Models
Authors: White Jeffrey W. , Boote Kenneth J. , Hoogenboom Gerrit , Jones Peter G.
Published: February 2007

Ecophysiological models are increasingly used as research and decision support tools in agriculture, but it is often difficult to assess how suitable a model is for a particular application. Model evaluations usually involve bivariate linear regression between observed and simulated values, which assumes statistical independence among observed values. However, observed data often have dependencies if they originate from series of experiments or involve experiments using nested designs (e.g., with split plots). By representing experiments, cultivars, or other variables as factors, linear regression models can specify expected dependencies, permitting analyses that are statistically more rigorous and provide more insights into model performance. This study evaluated the Cropping System Model (CSM)‐CROPGRO‐Soybean model using regressions that included environment and cultivars as factors as well as continuous variables such as temperature or daylength. When applied to 28 data sets for soybean [Glycine max (L.) Merr.], representing 113 treatment combinations, the regressions showed that the model simulated days to anthesis and grain yield well for a wide range of environments. Differences among environments represented a larger portion of unexplained variation than did differences among cultivars. Further improvements thus might be sought in modeling crop response to environment rather than in representing cultivar differences, or alternatively, in characterizing soil profiles or daily weather rather than cultivars. A submodel for photosynthesis that scaled leaf‐level values to canopy simulated grain yield more accurately than a simpler submodel. Multiple regressions provided much more information on model performance than simple bivariate comparisons.
Potential for a New Generation of Biodiversity in Agroecosystems of the Future
Authors: Kirschenmann Frederick L.
Published: February 2007

Industrial agriculture, which is grounded in the industrial principles—specialization, simplification and concentration—that inform all industrial economies, has been exceptionally successful for the past half century. But, as we enter the 21st century this modern agriculture will be facing a number of serious challenges that may force the abandonment of these principles in favor of a more diversified, complex system of food and fiber production.
Accumulation of Nitrogen and Dry Matter by Soybean Seeds with Genetic Differences in Protein Concentration
Authors: Egli D. B. , Bruening W. P.
Published: February 2007

Soybean [Glycine max (L.) Merrill] yields often decline as seed protein levels increase, but the processes responsible are not clearly understood. We compared dry matter and N accumulation by individual seeds of three high protein genotypes (K 1431, KS 4402sp, NE 3396) and three commercial cultivars (Pennyrile, Flyer, Hutcheson) in the field near Lexington, KY (38° 01′ N lat; 84° 35′ W long) for 3 yr to determine if increasing protein concentration decreased the seed growth rate. Plants were grown in 76.2‐cm rows using conventional production practices and overhead irrigation to minimize soil moisture deficits. The rate of dry matter accumulation by individual seeds (SGRDM) varied from 4.2 to 6.1 mg seed−1 d−1 and this variation was closely associated with mature seed size, but it was not affected by seed N concentration. The rate of N accumulation (SGRN, mg N seed−1 d−1) was closely associated with seed N concentration at maturity across all genotypes and years (r2 = 0.76). Thus, SGRN and SGRDM seemed to vary independently as the N concentration in mature seeds increased. The duration of seed filling (estimated by the effective filling period) was not related to mature seed N concentration. Since higher seed N concentration had no effect on the rate or duration of seed dry matter accumulation by individual seeds, the purported negative effect of seed protein levels on yield may be more closely associated with whole plant phenomena than those operating at the individual seed level.
Field Evaluation of Transgenic Wheat Expressing a Modified ADP‐Glucose Pyrophosphorylase Large Subunit
Authors: Meyer F. D. , Talbert L. E. , Martin J. M. , Lanning S. P. , Greene T. W. , Giroux M. J.
Published: February 2007

Wheat yield is influenced by the efficacy of seed starch biosynthetic enzymes. ADP‐glucose pyrophosphorylase (AGP) catalyzes a rate‐limiting step in seed starch biosynthesis. We transformed the hard spring wheat (Triticum aestivum L.) cultivar Hi‐Line with a modified maize AGP large subunit sequence (Sh2r6hs) to increase AGP activity. In previously described growth chamber studies, Sh2r6hs conditioned increased AGP activity, seed yield, and plant size. The primary objective of this study was to determine whether a similar yield enhancement could be detected under field conditions. Sh2r6hs transgenics were field tested over four growing years, in three locations, with varying planting density and irrigation. The results indicate that significant yield increases were more likely to occur in space‐planted, irrigated environments than densely planted, rainfed environments, suggesting that limited abiotic resources may subsequently limit Sh2r6hs‐associated yield enhancement. In elite lines, as in the F2–derived trials in which tissue culture derived mutations were reduced by out‐crossing, Sh2r6hs appears to confer a yield advantage only when field conditions are nonlimiting.
Synthesis and properties of new thermosensitive polymer systems
Authors: Bohrisch Joerg , Hahn Mathias , Maedler Andrea , Stoll Michael
Published: February 2007

The controlled thermal release of aqueous solvent mixtures from polymeric gel particles was investigated. A new type of a polymeric gel consisting of a maleic anhydride/poly(ethylene glycol) condensation product as a crosslinking macromonomer and acrylamides was synthesized by solution or inverse emulsion polymerization for the investigation. Afterward a shell of crosslinked polystyrene was coated to stabilize this new kind of “microcontainer” for the application. This concept was shown as generally useful for various mixtures of organic solvents and water. The cloud point temperature of the polymer gel strongly depended on the following parameters: the type and content of organic cosolvent, the degree of polymerization and constituents of the polyester moiety, and the type and content of the comonomers. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007
Experimentelle und numerische Untersuchungen eines komplexen Luftdurchlasses
Authors: Streblow Rita , Müller Dirk
Published: February 2007

Zur Beurteilung der Zuluftverteilung durch einen komplexen Luftdurchlaß werden experimentelle Untersuchungen durchgeführt und die Daten mit Ergebnissen der numerischen Strömungssimulation (CFD) verglichen. In den CFD Berechnungen wird die gesamte Durchlaßgeometrie sehr detailgetreu berücksichtigt und die Durchströmung des Anschlusskastens mitberechnet. Experimentelle Untersuchungen zur Geschwindigkeitsverteilung werden im Aufenthaltsbereich als auch im Nahfeld des Durchlasses durchgeführt. Der untersuchte Dralldurchlaß erzeugt ein komplexes Strömungsbild und es bilden sich instationäre Strukturen in der induzierten Raumluftströmung. Die berechneten Raumluftgeschwindigkeiten und die Geschwindigkeitsverteilung im Nahfeld des Durchlasses stimmen weitgehend mit experimentellen Daten überein. Es zeigt sich jedoch, daß das gewählte Turbulenzmodell die im Experiment auftretenden großskaligen Wirbelstrukturen nicht wiedergibt. Zusätzlich hat sich gezeigt, daß eine einfache Modellierung des Lochblechs als Quellterm in der Impulsgleichung nicht ausreichend ist.
Thermoaktive Bauteilsysteme mit integrierten Phasenwechselmaterialien – eine Simulationsstudie
Authors: Kalz Doreen , Pfafferott Jens , Schossig Peter , Herkel Sebastian
Published: February 2007

Gegenstand der vorliegenden Arbeit ist die Analyse und Evaluierung von thermoaktiven Bauteilsystemen (TABS) und einem Nachtlüftungskonzept hinsichtlich des thermischen Raumkomforts auf Grundlage einer modellbasierten Simulationsstudie. Das Gebäude‐ und Anlagenmodell wurde in der Simulationsumgebung ESP‐r mit Meßdaten aus Experimenten in einem Niedrigenergie‐Bürogebäude validiert. Die Untersuchung umfaßt: Betonkerntemperierung (BKT), Kapillarrohrmatten ohne und mit 20% mikroverkapselten latenten Wärmespeichermaterialien (PCM) im Deckenputz. Zentrale Ergebnisse sind: Die Konditionierung mit Kapillarrohrmatten ermöglicht ein zufrieden stellendes Raumklima vergleichbar mit BKT, die Verwendung von PCM trägt entscheidend zur Reduzierung der Raumtemperaturen bei und der optimale Schmelzbereich des PCM‐Speichers liegt in dieser Untersuchung bei 19 bis 22 °C.
Ferromagnetic Interaction in an Asymmetric End‐to‐End Azido Double‐Bridged Copper(II) Dinuclear Complex: A Combined Structure, Magnetic, Polarized Neutron Diffraction and Theoretical Study
Authors: Aronica Christophe , Jeanneau Erwann , El Moll Hani , Luneau Dominique , Gillon Béatrice , Goujon Antoine , Cousson Alain , Carvajal Maria Angels , Robert Vincent
Published: February 2007

A new end‐to‐end azido double‐bridged copper(II) complex [Cu2L2(N3)2] (1) was synthesized and characterized (L=1,1,1‐trifluoro‐7‐(dimethylamino)‐4‐methyl‐5‐aza‐3‐hepten‐2‐onato). Despite the rather long CuCu distance (5.105(1) Å), the magnetic interaction is ferromagnetic with J= +16 cm−1 (H=−JS1S2), a value that has been confirmed by DFT and high‐level correlated ab initio calculations. The spin distribution was studied by using the results from polarized neutron diffraction. This is the first such study on an end‐to‐end system. The experimental spin density was found to be localized mainly on the copper(II) ions, with a small degree of delocalization on the ligand (L) and terminal azido nitrogens. There was zero delocalization on the central nitrogen, in agreement with DFT calculations. Such a picture corresponds to an important contribution of the d orbital and a small population of the d orbital, in agreement with our calculations. Based on a correlated wavefunction analysis, the ferromagnetic behavior results from a dominant double spin polarization contribution and vanishingly small ionic forms.
Electronic Properties of 3,3′‐Dimethyl‐5,5′‐bis(1,2,4‐triazine): Towards Design of Supramolecular Arrangements of N‐Heterocyclic CuIComplexes
Authors: Courcot Blandine , Tran Diem Ngan , Fraisse Bernard , Bonhomme François , Marsura Alain , Ghermani Nour Eddine
Published: February 2007

A new efficient and safe synthesis of 3,3′‐dimethyl‐5,5′‐bis‐(1,2,4‐triazine) is presented. The electron‐density distribution and electrostatic properties (charge, electrostatic potential) of this molecule were analyzed. These properties were derived from a high‐resolution single‐crystal X‐ray diffraction experiment at 100 K and compared to the results obtained from ab initio DFT quantum‐mechanical calculations. Comparisons of its electrostatic potential features and integrated atomic charges (quantum theory of atoms in molecules, QTAIM) have been made with those of related molecules such as bipyrimidine ligands. Two methods were used to derive integrated charges: one is based on the conventional analytical procedure and the second uses a steepest‐ascent numerical algorithm. Excellent agreement was obtained between these two methods. Charges and electrostatic potential were used as predictive indices of metal chelation and discussed in the light of complexation abilities of the title compound and related molecules. The crystal structure of a CuIcomplex of 3,3′‐dimethyl‐5,5′‐bis(1,2,4‐triazine) is reported here. In the solid state, this complex forms a three‐dimensional multibranch network with open channels in which counterions and solvent molecules are located. This architecture involves bothcisandtransisomers of the title compound.
Sensitivity of YBa2Cu3O7 Thick Films to Gamma Rays.
Authors: Albiss B. A. , Al‐Akhras M. A.
Published: February 2007

ChemInform 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 Oxidation of Ti2InC, Zr2InC, (Ti0.5,Zr0.5)2InC and (Ti0.5,Hf0.5)2InC in Air.
Authors: Gupta S. , Hoffman E. N. , Barsoum M. W.
Published: February 2007

ChemInform 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.
Hematite Hollow Spheres with Excellent Catalytic Performance for Removal of Carbon Monoxide.
Authors: Hu Chaoquan , Gao Zhenghong , Yang Xiaorui
Published: February 2007

ChemInform 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.
Electrochemical Synthesis of Ag5Pb2O6.
Authors: Oberndorfer C. P. M. , Jansen M.
Published: February 2007

ChemInform 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.
Enantioselective Ene Reaction of Cyclopentadiene and α,β‐Enals Catalyzed by a Diphenylprolinol Silyl Ether.
Authors: Gotoh Hiroaki , Masui Ryouhei , Ogino Hiroshi , Shoji Mitsuru , Hayashi Yujiro
Published: February 2007

ChemInform 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.
Solvent‐Free Asymmetric Organocatalysis in a Ball Mill.
Authors: Rodriguez Belen , Rantanen Toni , Bolm Carsten
Published: February 2007

ChemInform 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.
Room‐Temperature Au(I)‐Catalyzed C—C Bond Formation Through a Tandem Friedel—Crafts‐Type Addition/Carbocyclization Reaction.
Authors: Toullec Patrick Yves , Genin Emilie , Leseurre Lucie , Genet Jean‐Pierre , Michelet Veronique
Published: February 2007

ChemInform 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.
Domino Cu‐Catalyzed C—N Coupling/Hydroamidation: A Highly Efficient Synthesis of Nitrogen Heterocycles.
Authors: Martin Ruben , Rodriguez Rivero Marta , Buchwald Stephen L.
Published: February 2007

ChemInform 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.
Direct α‐Hydroxylation of Ketones Catalyzed by Organic—Inorganic Hybrid Polymer.
Authors: Arai Takayoshi , Sato Toru , Noguchi Hiroshi , Kanoh Hirofumi , Kaneko Katsumi , Yanagisawa Akira
Published: February 2007

ChemInform 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.
Dimethoxyboron Bromide — A New, Efficient, Regio‐ and Chemoselective Reagent for the Conversion of Terminal Epoxides into Bromohydrins.
Authors: Roy Chandra D. , Brown Herbert C.
Published: February 2007

ChemInform 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 Practical Method for the Preparation of 4‐Nitrogen‐Substituted Benzoic Acids.
Authors: Shinozuka Tsuyoshi , Nakao Akira , Saito Keiji , Naito Satoru
Published: February 2007

ChemInform 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 Novel Category of Ionic Liquids Based on Diacetone Acrylamide Cation and Their Use as Esterification Catalysts.
Authors: Cai Qing‐Hai , Lu Bin , Li Jiang , Yang Xin , Shan Yong‐Kui
Published: February 2007

ChemInform 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.
Reactions of Dicarbanion Equivalents Generated from Complexation of 1,3‐Dienes on Ti(II) Moiety.
Authors: Baraut Johann , Perrier Arnaud , Comte Virginie , Richard Philippe , Le Gendre Pierre , Moise Claude
Published: February 2007

ChemInform 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 Convenient and Efficient Method for Incorporation of Pentafluorosulfanyl (SF5) Substituents into Aliphatic Compounds.
Authors: Dolbier William R. Jr. , Ait‐Mohand Samia , Schertz Tyler D. , Sergeeva Tatiana A. , Cradlebaugh Joseph A. , Mitani Akira , Gard Gary L. , Winter Rolf W. , Thrasher Joseph S.
Published: February 2007

ChemInform 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.
Addition of Benzyltrimethylsilane to Imines Triggered by Tetrabutylammonium Fluoride.
Authors: Zhang Wan‐Xuan , Ding Chang‐Hua , Luo Zhi‐Bin , Hou Xue‐Long , Dai Li‐Xin
Published: February 2007

ChemInform 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.
Efficient Synthesis of β‐Amino Alcohols Catalyzed by Niobium Pentachloride: Regioselective Ring Opening of Epoxides with Aromatic Amines.
Authors: Narsaiah A. Venkat , Sreenu D. , Nagaiah K.
Published: February 2007

ChemInform 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.
Direct Palladium‐Catalyzed ortho‐Arylation of Benzylamines.
Authors: Lazareva Anna , Daugulis Olafs
Published: February 2007

ChemInform 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.
Baylis—Hillman Reaction for α,β‐Unsaturated Trifluoromethyl Ketones.
Authors: Nenajdenko Valentine G. , Druzhinin Sergey V. , Balenkova Elizabeth S.
Published: February 2007

ChemInform 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 General Organic Catalyst for Asymmetric Addition of Stabilized Nucleophiles to Acyl Imines.
Authors: Bode Christiane M. , Ting Amal , Schaus Scott E.
Published: February 2007

ChemInform 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.
New Synthesis of Diphenylmethanamines
Authors: Aver'yanova E. V. , Sevodin V. P.
Published: February 2007

ChemInform 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 N‐Alkylaziridines from N‐Chloroamines.
Authors: Bew Sean P. , Hughes D. L. , Palmer Nicholas J. , Savic Vladimir , Soapi Katy M. , Wilson Martin A.
Published: February 2007

ChemInform 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.
Acylation of Alkylidenepyrrolidines with Heterocumulenes — A Reinvestigation.
Authors: Davies Christopher D. , Elliott Mark C. , Wood John L.
Published: February 2007

ChemInform 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 Addition of Aromatic Amines at the Exocyclic C=C Bond of 2‐(2‐Oxo‐2,3‐dihydro‐1H‐indol‐3‐ylidene)acetic Acid Esters.
Authors: Koz'minykh V. O. , Goncharov V. I. , Aksenov A. V. , Koz'minykh E. N. , Lomidze K. Sh. , Berezin A. N.
Published: February 2007

ChemInform 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.
The Rapid Photomediated Alkenylation of 2‐Alkyl‐1,3‐dioxolanes with Alkynes: A Stereoelectronically Assisted Chain Reaction.
Authors: Geraghty Niall W. A. , Lally Andrea
Published: February 2007

ChemInform 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 Furan‐2(3H)‐ones with 1,2‐Binucleophiles.
Authors: Amal'chieva O. A. , Egorova A. Yu.
Published: February 2007

ChemInform 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 Novel Method for the Highly Efficient Synthesis of 1,2‐Benzisoxazoles under Neutral Conditions Using the Ph3P/DDQ System.
Authors: Iranpoor Nasser , Firouzabadi Habib , Nowrouzi Najmeh
Published: February 2007

ChemInform 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.
Pyrones to Pyrans: Enantioselective Radical Additions to Acyloxy Pyrones.
Authors: Sibi Mukund P. , Zimmerman Jake
Published: February 2007

ChemInform 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.
Reactions of Zinc Enolates Derived from 1‐Aryl‐2‐bromoalkanones and 1‐Aryl‐2‐bromo‐2‐phenylethanone with 3‐Aroyl‐6‐bromochromen‐2‐ones and 2‐Benzoylbenzo[f]chromen‐3‐one.
Authors: Shchepin V. V. , Korzun A. E. , Vakhrin M. I. , Silaichev P. S. , Ezhikova M. A. , Kodess M. I.
Published: February 2007

ChemInform 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 Photochemical Properties of a New Water‐Soluble Coumarin, Designed as a Chromophore for Highly Water‐Soluble and Photolabile Protecting Group.
Authors: Senda Naoko , Momotake Atsuya , Nishimura Yoshinobu , Arai Tatsuo
Published: February 2007

ChemInform 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.
CAN‐Mediated Rearrangement of 4‐Benzhydrylidenepiperidines.
Authors: Chang Meng‐Yang , Wu Tsun‐Cheng , Lin Chun‐Yu , Hung Ching‐Yi
Published: February 2007

ChemInform 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 6‐Aminoquinoline with Formaldehyde and Cyclic β‐Diketones. Synthesis of Benzo[b]‐ (V) and Indeno[2,1‐b][4,7]phenanthroline Derivatives (VIII).
Authors: Kadutskii A. P. , Kozlov N. G.
Published: February 2007

ChemInform 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‐Step Solvent‐Free Synthesis of Fluoroalkyl‐Substituted 4‐Hydroxy‐2‐oxo(thioxo)hexahydropyrimidines in the Presence of 1‐Butyl‐3‐methylimidazolium Tetrafluoroborate
Authors: Putilova E. S. , Troitskii N. A. , Zlotin S. G. , Khudina O. G. , Burgart Ya. V. , Saloutin V. I. , Chupakhin O. N.
Published: February 2007

ChemInform 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 Practical One‐Pot Procedure for the Synthesis of Pyrazino[2′,3′:4,5]thieno[3,2‐d]pyrimidinones by a Tandem aza‐Wittig/Heterocumulene‐Mediated Annulation Strategy.
Authors: Blanco Gerardo , Segui Natalia , Quintela Jose M. , Peinador Carlos , Chas Marcos , Toba Rosa
Published: February 2007

ChemInform 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.
Heterocyclization of 6‐Hydroxyimino‐6,7‐dihydro‐1,2,4‐triazolo[1,5‐a]pyrimidines into 1,2,4‐Triazolo[1,5‐a]pyrimido[5,4‐b]‐ and ‐[5,6‐b]indoles.
Authors: Lipson Victoria V. , Desenko Sergey M. , Shishkin Oleg V.
Published: February 2007

ChemInform 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.
Efficient Catalytic Asymmetric Synthesis of α‐Substituted Phenyloxyacetyloxy and Aroyloxy Phosphonates.
Authors: Liu Hui , Zhou Yong‐Gui , Yu Zheng‐Kun , Xiao Wen‐Jing , Liu Sheng‐Hua , He Hong‐Wu
Published: February 2007

ChemInform 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.
Two New Oleanane Triterpene Glycosides from the Bark of Terminalia arjuna
Authors: Ali Asif , Ali Mohammed , Alam Mohd S.
Published: February 2007

ChemInform 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.
Echinolactones C and D: Two Illudalane Sesquiterpenoids Isolated from the Cultured Mycelia of the Fungus Echinodontium japonicum
Authors: Suzuki Shinsuke , Murayama Tetsuya , Shiono Yoshihito
Published: February 2007

ChemInform 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 Hexopyranosyl Acetates and 2,3‐Disubstituted Tetrahydropyrans via Chemoselective Hydrogenation of Hex‐2‐enopyranosyl Acetates.
Authors: Sasaki Kaname , Wakamatsu Takayuki , Matsumura Shuichi , Toshima Kazunobu
Published: February 2007

ChemInform 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 (.+‐.)‐Strychnofoline via a Highly Convergent Selective Annulation Reaction.
Authors: Lerchner Andreas , Carreira Erick M.
Published: February 2007

ChemInform 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.
Syntheses of Aporphine and Homoaporphine Alkaloids by Intramolecular ortho‐Arylation of Phenols with Aryl Halides via SRN1 Reactions in Liquid Ammonia.
Authors: Barolo Silvia M. , Teng Xin , Cuny Gregory D. , Rossi Roberto A.
Published: February 2007

ChemInform 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 Bioactivities of Novel Neonicotinoids Dioxolane Compounds.
Authors: Tian Zhongzhen , Li Zhong , Huang Qingchun , Xu Xiaoyong , Yu Tao , Wu Yingli , Qian Xuhong
Published: February 2007

ChemInform 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 the DEF‐Bis‐spiroacetal of Spirastrellolide A Exploiting a Double Asymmetric Dihydroxylation/Spiroacetalization Strategy.
Authors: Paterson Ian , Anderson Edward A. , Dalby Stephen M. , Lim Jong Ho , Maltas Philip , Moessner Christian
Published: February 2007

ChemInform 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.
Synthetic Studies Towards Pentacyclic Quassinoids: Total Synthesis of Unnatural (‐)‐14‐epi‐Samaderine E and Natural (‐)‐Samaderine Y from (S)‐(+)‐Carvone
Authors: Shing Tony K. M. , Yeung Ying‐Yeung
Published: February 2007

ChemInform 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.
Molecular Modeling Approaches for the Prediction of the Nonspecific Binding of Drugs to Hepatic Microsomes.
Authors: Sykes Matthew J. , Sorich Michael J. , Miners John O.
Published: February 2007

ChemInform 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 Nanocrystalline ZnWO4 via Molten Salt Route and Its Photoluminescence.
Authors: Ran Songlin , Gao Lian
Published: February 2007

ChemInform 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.
Chemical Transformation: a Powerful Route to Metal Chalcogenide Nanowires
Authors: Jeong Unyong , Camargo Pedro H. C. , Lee Young Hwan , Xia Younan
Published: February 2007

ChemInform 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.
Al—Cr—Ni—Ru (Aluminum—Chromium—Nickel—Ruthenium)
Authors: Raghavan V.
Published: February 2007

ChemInform 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.
The Mn—Ni—Si (Manganese—Nickel—Silicon) System
Authors: Gupta K. P.
Published: February 2007

ChemInform 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.
The Co—Mn—Si (Cobalt—Manganese—Silicon) System
Authors: Gupta K. P.
Published: February 2007

ChemInform 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.
Ruthenium Polypyridyl Chemistry; from Basic Research to Applications and Back Again
Authors: Vos Johannes G. , Kelly John M.
Published: February 2007

ChemInform 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.
Alkylsodium Compounds
Authors: Mordini Alessandro , Valacchi M.
Published: February 2007

ChemInform 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.
Allyllithium Compounds
Authors: Brandsma Lambert , Zwikker Jan W.
Published: February 2007

ChemInform 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, Self‐Assembly, and Applications of Polyferrocenylsilane Block Copolymers
Authors: Wang Xiaosong , Winnik Mitchell A. , Manners Ian
Published: February 2007

ChemInform 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.
Formation of C—O Bonds by Oxidation
Authors: Clerici Mario G. , Ricci Marco , Strukul Giorgio
Published: February 2007

ChemInform 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.
Lithium Nitronates
Authors: Ono Noboru
Published: February 2007

ChemInform 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.
sp3‐Hybridized α‐Lithio Ethers and O‐Carbamates
Authors: MacNeil Stephen
Published: February 2007

ChemInform 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.
Lithium—Oxygen Compounds
Authors: Wietelmann Ulrich
Published: February 2007

ChemInform 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.
Mg‐Promoted Selective C—F Bond Cleavage: A General and Efficient Access to Difluoroenol Silyl Ethers and Their Derivatives
Authors: Amii Hideki , Uneyama Kenji
Published: February 2007

ChemInform 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.
Organic Gas‐Phase Ion Chemistry
Authors: Tian Zhixin , Kass Steven R.
Published: February 2007

ChemInform 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.
Multireference Calculation of the Photodissociation of Benzyl Chloride
Authors: Cao Jun , Liu Ya‐Jun , Fang Wei‐Hai
Published: February 2007

The photodissociation mechanism of benzyl chloride (BzCl) under 248 nm has been investigated by the complete active space SCF (CASSCF) method by calculating the geometries of the ground (S0) and lower excited states, the vertical (Tv) and adiabatic (T0) excitation energies of the lower states, and the dissociation reaction pathways on the potential energy surfaces (PES) of S1, T1 and T2 states. The calculated results clearly elucidated the photodissociation mechanism of BzCl, and indicated that the photodissociation on the PES of T1 state is the most favorable.
Relationship between Scattered Photon Counts and Concentrations of Some Saline Solutions in Compton Scattering
Authors: Luo Guang , Zhou Shang‐Qi , Han Zhong , Chen Shuang‐Kou
Published: February 2007

Compton scattering saline solution was researched. Firstly according to the Compton scattering theory the linear relationship between the concentration and the scattered photon counts was obtained. And then it was proved by Compton scattering experiments for some solutions. According to those experiments, it was found that the slope was decreased when the atomic number of the cation was increased for alkali metal chloride solutions and alkaline‐earth metal chloride solutions. Based on those relationships, a new method was promoted with which to measure the concentration of saline solution untouched the measured solution.
New Amphiphilic Polypyridyl Ruthenium(II) Sensitizer and Its Application in Dye‐Sensitized Solar Cells
Authors: Kong Fan‐Tai , Dai Song‐Yuan , Wang Kong‐Jia
Published: February 2007

Amphiphilic polypyridyl ruthenium(II) complex cis‐di(isothiocyanato)(4,4′‐di‐tert‐butyl‐2,2′‐bipyridyl)(4,4′‐ dicarboxy‐2,2′‐bipyridyl)ruthenium(II) (K005) has been synthesized and characterized by cyclic voltammetry, 1H NMR, UV‐Vis, and FT‐IR spectroscopies. The sensitizer sensitizes TiO2 over a notably broad spectral range due to its intense metal‐to‐ligand charge‐transfer (MLCT) bands at 537 and 418 nm. The photophysical and photochemical studies of K005 were contrasted with those of cis‐Ru(dcbpy)2(NCS)2, known as the N3 dye, and the amphiphilic ruthenium(II) dye Z907. A reversible couple at E1/2=0.725 V vs. saturated calomel electrode (SCE) with a separation of 0.08 V between the anodic and cathodic peaks, was observed due to the RuII/III couple by cyclic voltammetry. Furthermore, this amphiphilic ruthenium complex was successfully used as sensitizers for dye‐sensitized solar cells with the efficiency of 3.72% at the 100 mW·cm−2 irradiance of air mass 1.5 simulated sunlight without optimization of TiO2 films and the electrolyte.
Study on Determination of Chemical Oxygen Demand in Water with Ion Chromatography
Authors: Zhang Zhong‐Hai , Ding Hong‐Chun , Fang Yan‐Ju , Xian Yue‐Zhong , Jin Li‐Tong
Published: February 2007

A new method for determining chemical oxygen demand (COD) value in water using ion chromatography coupled with nano TiO2‐K2S2O8 co‐existing system was described. The photocatalytic oxidation system and nano TiO2‐K2S2O8 co‐existing system could degrade the organic compounds in water. All sulfur‐containing species in the reactive solution were eventually transformed to sulfate which could be determined by conductivity detector in ion chromatography. The change of conductivity of sulfate was proportional to COD value. The optimal experimental conditions and the mechanism of the detection were discussed. The application range was 10.0–300.0 mg·L−1 and the lowest limit of detection was 3.5 mg·L−1. It was considered that the value obtained could be reliably correlated with the COD value obtained using the conventional methods.
Nucleophilic Substitution on Porphyrin Ring: Synthesis of 2‐(2‐Hydroxynaphthyl)‐5,10,15,20‐tetraphenylporphyrin
Authors: Chen Zhang‐Ping , Hu Qin , Zhai Bao‐Ping , Jiang Zhong‐Xing , Qin Wei
Published: February 2007

The reactions of 2‐nitro‐5,10,15,20‐tetraphenylporphyrin (1) and its Ni (II) (2), Cu (II) (3), Zn (II) (4) complexes with sodium 2‐naphthoxide have been investigated in different solvents for preparing 2‐substituted porphyrins. 2‐(2‐Hydroxynaphthyl)‐5,10,15,20‐tetraphenyl porphyrin (5) and its Ni (II) (6), Cu (II) (7), Zn (II) (8) complexes were obtained in 72%, 78%, 81% and 65% yields in 2‐naphthol at 150 °C respectively. The same products were also obtained in other protic solvents such as diglycol and diglycol monomethyl ether. When the reactions proceeded in aprotic solvent DMF at 150 °C, besides 5 (70%), 6 (34%), 7 (54%) and 8 (50%), the corresponding 2‐(2‐naphythoxy)‐5, 10,15,20‐tetraphenylporphyrin (9), and its Ni (II) (10), Cu (II) (11), Zn (II) (12) complexes were also obtained in minor, 40%, 18% and 2% yields respectively, but only 5, 6, 7, 8 were found at room temperature in DMF or DMSO. These reactions are much faster than those of 1–4 with sodium phenoxide. The formation of C‐coupling products 5–8 was proposed via SRN1 mechanism.