bluuebunny/crossref_metadata_2025 huggingface dataset:
Afro Medicinal Plants a Promising Remedy for Sickle Cell Anemia
Authors: Ahajumobi N E. , Asika J C.
Published: February 2024

Background: Sickle cell anemia is a disease that affects largely Africans and people in the tropics. It affects an average of 7.74 million and the mortality rate was 376,000 in the year 2021. Sickle cell disease was discovered in 1910 by a Famous scholar Herrick who described it as a hematological (Blood) disease and nearly three decades later, in 1949, Linus Pauling discovered the pathology of sickle cell anemia. Through molecular studies we further learned that sickle cell disease is caused by certain abnormalities in the hemoglobin of the patient, which costs millions of lives, plant products offer hope.

Aims: The objectives were to determine the plants that are in use and the consensus clinical evidence about the plants and sickle cell diseases treatment. To provide easy access to consensus evidence to busy healthcare professionals and to educate the public.

Place and Duration of Study: Department of Public Health, College of Health Science, Walden University, Minneapolis, USA, between July 2022 and October 2023.

Methodology: A systematic review supported by a community approach to intervention services and native medicine theories supported the study. Search engines were Safari, Google, Google scholar, and Firefox.

Results: Showed that while there were various approaches adopted by modern medicine to provide palliative care for persons with sickle cell diseases, which were directed at raising depleting nutrients, preventing infections and delaying the gelling point of the erythrocyte, no significant achievement has been made at reducing the disease and treating it effectively. Also, over 80% of the patients cannot afford the cost of the treatment. Thankfully, phytochemical compounds isolated from some medicinal plants- Carica papaya, Piper guineense, Cajanus cajan, Zanthoxylum zanthoxyloides, Terminalia catappa L, and formulations made from them such as Niprisan and Ciklavit, which have been approved for use for treating sickle cell diseases stands to be sustainable and efficacious offer hope. Outcome will bring a significant social change in local and global public health and economic activities.

Conclusion: Clinically tested phytochemical compositions of implicated plants, herbal preparations, and specific nutrients investigated in this study possess anti-sickling properties and a couple of the preparations have been approved for sickle cell disease treatment in Nigeria.
Effect of Exogenous Plant Growth Regulators on Growth, Yield, and Quality of Parthenocarpic Cucumber/English Cucumber (Cucumis sativus L.) under Protected Condition
Authors: Verma Riya , Topno Samir E , Bahadur Vijay
Published: February 2024

This study was carried out during the Rabi season 2022-2023 to investigate the effect of different levels of NAA, GA3, and TIBA on the growth, yield, and quality of Pusa Parthenocarpic cucumber – 6 and to estimate the economics. The study was conducted from January to March 2023, the research revealed NAA's significant effect on vine length, earliness parameters, yield, and quality attributes. Treatment 8 (NAA@200ppm) emerged as particularly promising, demonstrating superior growth with an average plant height of 290 cm, accelerated development with an average fruit weight of 252.67 g, and a maximum benefit-cost ratio of 2.39.
Exploring Lipid Abnormalities in Senile Cataract: A Cross-Sectional Investigation
Authors: Sahare Harshal , Barapatre Amit , Shah Meeta Piyush , Vengurlekar Shubhada Girish , Kinage Kalpana Ganesh , Pathare Santosh Shivpal
Published: February 2024

Background: Age-related cataracts (ARC) are a common cause of vision impairment in older adults. Previous studies have suggested that abnormal Lipid profile and oxidative stress may contribute to the development and progression of ARC.

Aim: The aim of this study was to compare the serum Lipid profile levels in patients with ARC and healthy controls.

 Materials and Methods: This was a case-control study involving 50 patients with ARC and 50 age and gender-matched controls. Serum Lipid profile levels were measured using standard methods. The data were analyzed using t-test. A P-value of less than 0.05 was considered statistically significant.

Results: The results showed that the mean serum level of HDL Cholesterol was significantly lower in the ARC group than in the control group, while the mean serum level of triglyceride was significantly higher in the ARC group than in the control group.

Conclusion: This study indicates that altered lipid profile may be a risk factor for ARC.
repressão durante a transição (1974-1979) e a “institucionalização das instituiçõe”’: as bases da contrarrevolução democrática (1974-1988)
Authors: Cardoso Pedro
Published: February 2024

Esse artigo tem como objetivo caracterizar o início da transição para a democracia no Brasil, tendo como destaque o governo Ernesto Geisel (1974-1979). O projeto da distensão política tinha como elemento central o controle das Forças Armadas perante o processo de transição e enquanto institucionalizavam a nova ordem democrática, os militares enfrentavam resistências ao processo de abertura. Para isso usou todo o aparato repressivo existente e simultaneamente dialogava e negociava, as bases da democracia, com os setores moderados da oposição. Defendemos a tese de que as características acima, isto é o fortalecimento das instituições e a repressão política foram fundamentais para a vitória do projeto de transição dos militares.
Revista Veredas da História (v. 16, n.1, 2023)
Authors: Junior Carlos Zacarias de Sena , Lins Marcelo da Silva , Lima Marcelo , Sobral Thasio Fernandes
Published: February 2024

Edição Completa, v. 16, n.1, 2023, organida por Thasio Sobral (PPGH-UFBA), Carlos Zacarias Sena Junior (PPGH-UFBA) e Marcelo Lins (UESC)
Single‐Molecule Magnets Under Pressure
Authors: Bircher R. , Chaboussant G. , Dobe C. , Güdel H. U. , Ochsenbein S. T. , Sieber A. , Waldmann O.
Published: November 2005

We feature our recent work in the field of single‐molecule magnets (SMMs) using inelastic neutron scattering (INS). The term “pressure” in the title has a triple meaning. First, there is the expectation from research‐funding agencies and the public to make some significant steps towards applications. Second, the synthesis of new compounds and the applications of physical techniques for their understanding are being pushed to their limits. And third, by applying hydrostatic pressure, valuable insight into the mechanisms behind the SMM phenomena can be gained. Examples from our research have been taken to illustrate these points. After a brief introduction to the technique, the strength of INS for the accurate determination of exchange and anisotropy interactions in SMMs is highlighted. We hope to demonstrate that, by pushing INS measurements to their limits, i.e., using the best available neutron sources and instrumentation, combined with high quality samples, new insights into the relevant physical processes in SMMs can be gained.
Photochromic Switches Incorporated in Bridging Ligands: A New Tool to Modulate Energy‐Transfer Processes
Authors: Belser P. , De Cola L. , Hartl F. , Adamo V. , Bozic B. , Chriqui Y. , Iyer V. M. , Jukes R. T. F. , Kühni J. , Querol M. , Roma S. , Salluce N.
Published: November 2005

The thoughful construction of molecular switches has led to a gamut of supramolecular systems that can be used in molecular electronics. These include molecules based on thienylethenes, spiropyrans, fulgides, dithienylphenanthrolines, and diazafluorenes. This article reviews the recent developments made in the synthesis and characterization of all these systems, thereby allowing a comparative study to validate the viability of these switchable molecules on a nanoscale. Also, the drawbacks of each class are demonstrated and, at the same time, the remedies for further improvisation are prescribed. We have made an honest attempt to present an exhaustive account of all the different photochromic switches developed by us hitherto.
Gradient Array of Freely Suspended Nanomembranes
Authors: Jiang C. , Kommireddy D. S. , Tsukruk V. V.
Published: November 2005

Freely suspended layer‐by‐layer nanomembranes have been transferred onto an array of circular openings of varying diameters (a gradient array). The mechanical behavior of these nanomembrane gradient arrays have been studied using both bulging tests and point‐load experiments. By using the gradient array, experimental statistics are significantly improved. The observed scale‐dependent mechanical properties, investigated in an efficient fashion, are evident in the trend of increasing elastic modulus with decreasing membrane diameter. The observed increase in bending rigidity with decreasing membrane diameter is satisfactorily described by the theoretical model of an elastic membrane under a point load.
Tuning Optoelectronic Properties of Ambipolar Organic Light‐ Emitting Transistors Using a Bulk‐Heterojunction Approach
Authors: Loi M. A. , Rost‐Bietsch C. , Murgia M. , Karg S. , Riess W. , Muccini M.
Published: November 2005

Bulk‐heterojunction engineering is demonstrated as an approach to producing ambipolar organic light‐emitting field‐effect transistors with tunable electrical and optoelectronic characteristics. The electron and hole mobilities, as well as the electroluminescence intensity, can be tuned over a large range by changing the composition of a bimolecular mixture consisting of α‐quinquethiophene and N,N′‐ditridecylperylene‐3,4,9,10‐tetracarboxylic‐diimide. Time‐resolved photoluminescence spectroscopy reveals that the phase segregation of the two molecules in the bulk heterojunction and their electronic interaction determine the optoelectronic properties of the devices. The results presented show that the bulk‐heterojunction approach, which is widely used in organic photovoltaic cells, can be successfully employed to select and tailor the functionality of field‐effect devices, including ambipolar charge transport and light emission.
Towards computer‐aided separation synthesis
Authors: Zhang Libin , Linninger Andreas A.
Published: November 2005

A novel computer‐aided design methodology is introduced for synthesizing multi‐component distillation networks. A single‐objective unconstrained design problem formulation circumvents numerical challenges regarding lack of robustness and multiple local minima. A thermodynamically motivated temperature collocation approach drastically reduces the number of state variables occurring in rigorous column equilibrium and component balances. A novel chromosome encompassing all column configurations is proposed to solve the mixed‐integer nonlinear programming (MILNP) using a stochastic genetic algorithm (GA) with minimum user input. The general formulation and robust performance of the computer‐aided design approach naturally extends to multi‐component mixtures. Applications include solutions to optimal sequencing problems for up to five species. The massive parallelism of the approach allows for the generation of complete solution maps classifying the design space into regions of optimality. The method also applies to optimal sequences of azeotropic columns. The temperature collocation approach constitutes a promising new design framework for synthesis problems previously not amenable to computer‐aided design and analysis. © 2005 American Institute of Chemical Engineers AIChE J, 2006
Microwave assisted HMDSO/oxygen plasma coated polyethylene terephthalate films: Effects of process parameters and uniaxial strain on gas barrier properties, surface morphology, and chemical composition
Authors: Schmachtenberg Ernst , Costa Francis Reny , Göbel Sebastian
Published: November 2005

The coating structure and barrier property relation of coated PET films is of high interest for understanding the difference between predicted and actual barrier performance of coated PET films. In this work the chemical and morphological structure of HMDSO coatings generated with and without oxygen in a microwave plasma has been investigated with XPS and AFM analysis. These results were correlated with oxygen permeation measurements at different strain rates and temperatures. The results show that with a more glass‐like chemical composition the barrier property is improved. The growth of the coatings takes place in a columnar manner and the interfaces between the columns seem to be the low energy passages for the permeation, which cause the difference between predicted and actual barrier performance. When the coatings are strained the barrier fails at a strain higher than 1%. Cracks occur and with higher strain rates the number of cracks increases. Cracking takes place perpendicular to the strain direction and at the interfaces of the columns of the coating. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 99: 1485–1495, 2006
The linear viscoelastic properties of copolypropylene–clay nanocomposites
Authors: Zhong Weixia , Qiao Xiuying , Sun Kang , Zhang Guoding , Chen Xiaodong
Published: November 2005

The linear viscoelastic properties of copolypropylene (cPP)–clay nanocomposites (cPPCNs) prepared by melt intercalating with different amounts of clay were extensively examined by rheological measurements. Meanwhile, the clay effects on the cPP confinements were first estimated by calculating the activation energy of different cPP moving units, including the whole molecular chain, the chain segment, and smaller unit such as chain link. The results showed that the stability of cPPCNs melts wrecked when the clay loading was above 5 wt %. An increase in clay loading of cPPCNs gave rise to a strong low frequency solid‐like response (G′ > G″). Unlike the matrix polymer, cPPCN5 (with 5 wt % clay) exhibited a relaxation plateau as relaxation time prolonged above 100 s, and displayed a maximal linear modulus. The variations of the activation energy of different cPP moving units revealed that the mobility of cPP molecular chains was restricted by clay layers, while these restrictions were not only related to the clay loadings but also largely depended on the clay dispersion status in the matrix. The motions of cPP chain segments were greatly limited at 3–5 wt % loading of clay, but drastically activated with the addition of 7 wt % clay due to the increasing stacks of clay layers within the matrix. However, it was found that the presence of clay had little effect on the mobility of small cPP moving units such as chain links. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 99: 1523–1529, 2006
Hha, YbaJ, and OmpA regulate Escherichia coli K12 biofilm formation and conjugation plasmids abolish motility
Authors: Barrios Andrés F. González , Zuo Rongjun , Ren Dacheng , Wood Thomas K.
Published: November 2005

Escherichia coli Hha is an environmental‐response regulator of the pathogenic hemolysin operon, and Hha and the contiguous YbaJ are both induced 30‐fold in E. coli biofilms (Appl. Microbiol. Biotechnol. 64:515, 2004). Here it is shown that Hha and YbaJ regulate biofilm formation since the hha/ybaJ deletion reduces biofilm mass in microtitre plates (81% in minimal medium, 50% in complex medium) and in flow cells (1,000‐fold less surface coverage in minimal medium). The addition of the derepressed conjugative plasmid R1drd19, which increases significantly biofilm formation, eliminated motility completely in wild‐type E. coli K12, promoted cell aggregation 27.18 ± 0.05‐fold, and produced a flatter biofilm. Deletion of hha/ybaJ or ybaJ restored motility (this motility phenotype may be complemented by providing hha+/ybaJ+ or ybaJ+ in trans) and reduced cell aggregation to that of the wild‐type strain that lacks the conjugation plasmid. This increase in motility due to deleting hha/ybaJ was found to be due to 8‐fold induction of fliA transcription. In addition, deletion of ompA reduced biofilm mass by 80% in both LB medium and LB medium with glucose. Also, Hha/YbaJ promotes conjugation since there was five‐fold less conjugation in the hha/ybaJ mutant. It appears that conjugation plasmids promote biofilm formation by promoting cell aggregation, and that Hha and YbaJ increase biofilm formation by increasing conjugation and by decreasing motility when a conjugative plasmid (R1drd19) is present (YbaJ plays the most important role in this regulation of motility). When hha/ybaJ are deleted, there is less conjugation, less aggregation, more motility, and less biofilm. © 2005 Wiley Periodicals, Inc.
Dendritic Catanionic Assemblies: In vitro Anti‐HIV Activity of Phosphorus‐Containing Dendrimers Bearing Galβ1cer Analogues
Authors: Blanzat Muriel , Turrin Cédric‐Olivier , Aubertin Anne‐Marie , Couturier‐Vidal Christiane , Caminade Anne‐Marie , Majoral Jean‐Pierre , Rico‐Lattes Isabelle , Lattes Armand
Published: November 2005

Two series of water‐soluble dendritic catanionic assemblies, acting as multisite analogues of galactosylceramide (Galβ1cer), have been prepared with the goal of blocking HIV infection prior to the entry of the virus into human cells. Trifunctional and hexafunctional cinnamic acid‐terminated dendrimers have been synthesized from phosphorus‐containing dendrimers bearing aldehyde end groups. A classical acid–base reaction performed in water between acid‐terminated dendrimers and stoichiometric amounts of N‐hexadecylamino‐1‐deoxylactitol (3) provided the expected catanionic assemblies. Antiviral assays on these supramolecular entities confirmed the crucial roles both of multivalency effects and of lipophilicity on the biological activity of Galβ1cer analogues. Moreover, correlation between in vitro tests and molecular modeling highlights the specific influence of the assembly shape on the anti‐HIV efficiency, with the tri‐ and hexafunctional cored dendrimers, both decorated with 12 sugar moieties, exhibiting IC50 values of 1.1 and 0.12 μM, respectively.
Protein‐Structure Prediction by Recombination of Fragments
Authors: Bujnicki Janusz M.
Published: November 2005

The field of protein‐structure prediction has been revolutionized by the application of “mix‐and‐match” methods both in template‐based homology modeling and in template‐free de novo folding. Consensus analysis and recombination of fragments copied from known protein structures is currently the only approach that allows the building of models that are closer to the native structure of the target protein than the structure of its closest homologue. It is also the most successful approach in cases in which the target protein exhibits a novel three‐dimensional fold. This review summarizes the recent developments in both template‐based and template‐free protein structure modeling and compares the available methods for protein‐structure prediction by recombination of fragments. A convergence between the “protein folding” and “protein evolution” schools of thought is postulated.
Trianglamines—Readily Prepared, Conformationally Flexible Inclusion‐Forming Chiral Hexamines
Authors: Gawronski Jacek , Gawronska Krystyna , Grajewski Jakub , Kwit Marcin , Plutecka Agnieszka , Rychlewska Urszula
Published: November 2005

Trianglamines, macrocyclic heteraphanes, were readily synthesised through a [3+3] cyclocondensation of (R,R)‐1,2‐diaminocyclohexane with terephthalaldehyde, followed by NaBH4 reduction and N‐alkylation. The macrocyclic ring shows a remarkable ability to change its conformation, as a consequence of rotation about the CN bonds or nitrogen inversion due to protonation or N‐alkylation, as revealed by circular dichroism spectra, computational modelling and X‐ray diffraction analysis. The flexible natures of the trianglamine macrocycles allow ready accommodation of a variety of guest molecules to form crystalline inclusion complexes of highly diversified interpenetrating structures.
Phase Transitions in MnO and FeO at Low Temperatures: A Neutron Powder Diffraction Study.
Authors: Kantor A. P. , Dubrovinsky L. S. , Dubrovinskaia N. A. , Kantor I. Yu. , Goncharenko I. N.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Investigation of Magnetic Ordering in ErCo10Mo2‐xSix Compounds.
Authors: Elmali A. , Yuecel A. , Duman E. , Oezdemir Z. , Elerman Y.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Crystal Structure of New Selenosilicates Pb1.75M0.5SiSe4 (M: Cu and Ag).
Authors: Gulay L. D. , Huch M. R. , Wolcyrz M. , Olekseyuk I. D.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
PrNi and CeNi Hydrides with Extremely High H‐Density.
Authors: Kolomiets A. V. , Miliyanchuk K. , Galadzhun Ya. , Havela L. , Vejpravova J.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Conversion of Epoxides to β‐Chlorohydrins with Thionyl Chloride and β‐Cyclodextrin in Water.
Authors: Surendra K. , Krishnaveni N. Srilakshmi , Nageswar Y. V. D. , Rao K. Rama
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Poly(vinylpyrrolidone)‐bromide Complex; a Mild and Efficient Reagent for Selective Bromination of Alkenes and Oxidation of Alcohols.
Authors: Lakouraj Moslem Mansour , Tajbakhsh Mahmood , Mokhtary Masoud
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Enantioselective Organocatalytic Allylic Amination.
Authors: Poulsen Thomas B. , Alemparte Carlos , Joergensen Karl Anker
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Efficient Suzuki Coupling of Aryl Chlorides Catalyzed by Tricyclohexylphosphine Adducts of Cyclopalladated Ferrocenylimines.
Authors: Gong Junfang , Liu Guangyu , Du Chenxia , Zhu Yu , Wu Yangjie
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Odorless and Practical Thioacetalization Reagent: Methyl 2‐(1,3‐Dithian‐2‐ylidene)‐3‐oxobutanoate.
Authors: Sun Ran , Liu Qun , Yu Hai‐Feng , Zhao Yu‐Long , Liu Jun , Ouyang Yan , Dong De‐Wen
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
The First Negishi Cross‐Coupling Reaction of Two Alkyl Centers Utilizing a Pd—N‐Heterocyclic Carbene (NHC) Catalyst.
Authors: Hadei Niloufar , Kantchev Eric Assen B. , O'Brien Christopher J. , Organ Michael G.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Clean Synthesis of Adipic Acid by Direct Oxidation of Cyclohexene with H2O2 Catalyzed by Na2WO4×2H2O and Acidic Ionic Liquids.
Authors: Gui Jianzhou , Liu Dan , Cong Xiaohui , Zhang Xiaotong , Jiang Heng , Hu Zhide , Sun Zhaolin
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Stereoselective Functionalization of Cyclopropane Derivatives Using Bromine/Magnesium and Sulfoxide/Magnesium Exchange Reactions.
Authors: Kopp Felix , Sklute Genia , Polborn Kurt , Marek Ilan , Knochel Paul
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Ionic Liquids/H2O Systems for the Reaction of Epoxides with NaN3: A New Protocol for the Synthesis of 2‐Azidoalcohols.
Authors: Yadav J. S. , Reddy B. V. S. , Jyothirmai B. , Murty M. S. R.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
A Novel Synthesis of (β‐Organochalcogenyl)allyl Phenyl Sulfoxides via Regioselective Hydrochalcogenation Reaction of 1,2‐Allenyl Sulfoxides.
Authors: Wu Zhimeng , Shen Ruwei , Ren Lianjun , Huang Xian
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Polymer‐Supported N‐Heterocyclic Carbene—Palladium Complex for Heterogeneous Suzuki Cross‐Coupling Reaction.
Authors: Kim Jong‐Ho , Kim Jung‐Woo , Shokouhimehr Mohammadreza , Lee Yoon‐Sik
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
An Acid Catalyzed Intramolecular C—C Coupling Reaction of 8‐Halomethyl‐16‐methoxy[2.2]metacyclophanes.
Authors: Tanaka Kan , Miyazawa Akira , Hiate Ai , Tashiro Masashi , Saisyo Tatsunori , Okabe Ryo , Kohno Kazufumi , Yamato Takehiko
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
A New Class of High Affinity Thyromimetics Containing a Phenyl‐naphthylene Core.
Authors: Hangeland Jon J. , Friends Todd J. , Doweyko Arthur M. , Mellstroem Karin , Sandberg Johnny , Grynfarb Marlena , Ryono Denis E.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Efficient Stereochemical Controllers in Biaryl Suzuki Coupling Reactions: Benzylic Carbinols Bearing in β‐Position Thioether, Dimethylamino, or Sulfoxide Groups.
Authors: Broutin Pierre‐Emmanuel , Colobert Francoise
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Stereospecific Isomerization of 2‐(1‐Bromoalkyl)‐1‐sulfonylaziridines Using Magnesium Bromide.
Authors: Karikomi Michinori , Takayama Takeshi , Haga Kazuo , Hiratani Kazuhisa
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Efficient One‐Pot Synthesis of 2‐Aryldihydrobenzofuran.
Authors: Pan Chongfeng , Ma Zhixiong , Yu Jie , Zhang Zuhui , Hui Ailing , Wang Zhiyong
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Regioselective Suzuki Cross‐Coupling Reactions at the 2‐Position of Di‐ and Tribrominated Pyrroles.
Authors: Schroeter Sven , Bach Thorsten
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Sulphamic Acid — A Mild, Efficient, and Cost‐Effective Solid Acid Catalyst for the Synthesis of Bis(1H‐indol‐3‐yl)methanes.
Authors: Singh Pankajkumar R. , Singh Devendrapratap U. , Samant Shriniwas D.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
A Novel TFA‐Mediated cyclo‐Dimerization of 1‐Substituted 3‐Alkenylindole Derivatives to Cyclopent[b]indoles.
Authors: Kawasaki Ikuo , Terano Masami , Kurume Ai , Hara Satoko , Yamashita Masayuki , Ohta Shunsaku
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Efficient and Practical Procedures for the Synthesis of Bis‐benzimidazoles in Dry Media under Various Reaction Conditions.
Authors: Aghapoor Kioumars , Mohsenzadeh Farshid , Darabi Hossein Reza
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Efficient Synthesis of N‐Protected Trisubstituted Oxazolidines from Ketones, Vinyl Ethers, and Fluoroalkanesulfonyl Azides in Mild Conditions.
Authors: He Ping , Zhu Shizheng
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
General Synthesis of (1‐Substituted‐1H‐1,2,3‐triazol‐4‐ylmethyl)‐dialkylamines via a Copper(I)‐Catalyzed Three‐Component Reaction in Water.
Authors: Yan Ze‐Yi , Zhao Ya‐Bin , Fan Ming‐Jin , Liu Wei‐Min , Liang Yong‐Min
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Mild and Efficient Method for the Synthesis of Tetrahydropyran Derivatives via Cross‐Cyclization Between Epoxides and Homoallylic Alcohols Mediated by Bismuth(III) Chloride.
Authors: Yadav J. S. , Rajasekhar K. , Murty M. S. R.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Synthesis of Isocoumarins and α‐Pyrones via Tandem Stille Reaction/Heterocyclization.
Authors: Cherry Khalil , Parrain Jean‐Luc , Thibonnet Jerome , Duchene Alain , Abarbri Mohamed
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Lewis Acid Catalyzed Tandem Diels—Alder Reaction/Retro‐Claisen Rearrangement as an Equivalent of the Inverse Electron Demand Hetero Diels—Alder Reaction.
Authors: Davies Huw M. L. , Dai Xing
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Rapid Access of Some Chloro‐Substituted Isocoumarins and Biological Activity Toward Some Pathogenic Systems.
Authors: Roy H. N. , Sarkar M. S.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
A Convenient Preparation of Xanthene Dyes.
Authors: Yang Youjun , Escobedo Jorge O. , Wong Alexander , Schowalter Corin M. , Touchy Michael C. , Jiao Lijuan , Crowe William E. , Fronczek Frank R. , Strongin Robert M.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Samarium‐Promoted Coupling of Pyridine‐Based Heteroaryl Analogues of Benzylic Acetates with Carbonyl Compounds.
Authors: Weitgenant Jeremy A. , Mortison Jonathan D. , Helquist Paul
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Catalytic Coupling of C—H and C—I Bonds Using Pyridine as a Directing Group.
Authors: Shabashov Dmitry , Daugulis Olafs
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
8‐Piperazinyl‐2,3‐dihydropyrrolo[3,2‐g]isoquinolines: Potent, Selective, Orally Bioavailable 5‐HT1 Receptor Ligands.
Authors: Heightman Tom D. , et al. et al.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Facile, One‐Pot Synthesis of Bicyclic 2‐Pyridones from Acyl Isocyanates, N‐Phenylmaleimide and Trimethylsilyldiazomethane.
Authors: Hari Yoshiyuki , Iguchi Tomoe , Aoyama Toyohiko
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Synthesis of Indeno‐Fused Derivatives of Quinolizinium Salts, Imidazo[1,2‐a]pyridine, Pyrido[1,2‐a]indole, and 4H‐Quinolizin‐4‐one via Benzannulated Enyne—Allenes.
Authors: Dai Weixiang , Petersen Jeffrey L. , Wang Kung K.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
GaCl3‐Catalyzed Insertion of Isocyanides into a C—O Bond in Cyclic Ketals and Acetals.
Authors: Yoshioka Sachiko , Oshita Masayuki , Tobisu Mamoru , Chatani Naoto
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Facile Synthesis of New Spirothiadiazolopyridazines by 1,3‐Dipolar Cycloaddition
Authors: Abouricha S. , Rakib E. M. , Benchat N. , Alaoui M. , Allouchi H. , El Bali B.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Synthesis of 4‐Aryl‐7,7‐dimethyl‐1,2,3,4,5,6,7,8‐octahydroquinazoline‐2‐one/thione‐5‐ one Derivatives and Evaluation as Antibacterials.
Authors: Kidwai M. , Saxena S. , Khan M. Khalilur Rahman , Thukral S. S.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
2,1,3‐Benzothiadiazine Derivatives: Synthesis and Screening versus PDE4 Enzyme.
Authors: Tait Annalisa , Luppi Amedeo , Avallone Rossella , Baraldi Mario
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
A New Approach to 1‐Substituted‐1,2‐alkadiene‐phosphonates. Part 3. Synthesis of 2‐Keto‐5‐methyl‐3,4‐hexadienyl‐3‐phosphonate Dimethyl Esters.
Authors: Enchev D. D.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
Addition of Diazomethane to Phosphonodithioformates and Reactions of Phosphonylated Thiocarbonyl S‐Methylides.
Authors: Urbaniak K. , Mloston G. , Gulea M. , Masson S. , Heimgartner H.
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
A Monoterpene Glucoside and Three Megastigmane Glycosides from Juniperus communis var. depressa.
Authors: Nakanishi Tsutomu , Iida Naoki , Inatomi Yuka , Murata Hiroko , Inada Akira , Murata Jin , Lang Frank A. , Iinuma Munekazu , Tanaka Toshiyuki , Sakagami Yoshikazu
Published: November 2005

For Abstract see ChemInform Abstract in Full Text.
New Bicyclic Taxane Diterpenoids from Taxus sumatrana.
Authors: Shen Ya‐Ching , Hsu Shaw‐Man , Lin Yun‐Sheng , Cheng Kuen‐Ching , Chien Ching‐Te , Chou Chang‐Hung , Cheng Yuan‐Bin
Published: November 2005

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Molecular Complexity from Aromatics: Synthesis and Photoreaction of endo‐Tricyclo[5.2.2.02,6]undecane — A Stereoselective Route to Tricyclic Framework of Protoilludanes.
Authors: Singh Vishwakarma , Lahiri Sanjoy , Pal Shantanu
Published: November 2005

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Short New Route to the Chiral Spiro‐Tetrahydrofuran Subunit Common to Some Terpenoids.
Authors: Chattopadhyay Shital K. , Karmakar Swastik , Sarkar Kaushik
Published: November 2005

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An Efficient Synthesis of Optically Active 3‐Amino‐3‐alkyl‐2‐oxetanones.
Authors: Olma Aleksandra , Kudaj Adam
Published: November 2005

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Diastereoselective Michael Additions of Chelated Enolates Towards Nitroalkenes.
Authors: Mendler Barbara , Kazmaier Uli
Published: November 2005

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Synthesis, Glycosidation, and Hydrolytic Stability of Novel Glycosyl Thioimidates.
Authors: Ramakrishnan Archana , Pornsuriyasak Papapida , Demchenko Alexei V.
Published: November 2005

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ZHD‐0501, a Novel Naturally Occurring Staurosporine Analogue from Actinomadura sp. 007.
Authors: Han Xiao‐Xian , Cui Cheng‐Bin , Gu Qian‐Qun , Zhu Wei‐Ming , Liu Hong‐Bing , Gu Jing‐Yan , Osada Hiroyuki
Published: November 2005

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New Concise Total Synthesis of (+)‐Lentiginosine (I) and Some Structural Analogues.
Authors: Cardona Francesca , Moreno Guillermo , Guarna Francesco , Vogel Pierre , Schuetz Catherine , Merino Pedro , Goti Andrea
Published: November 2005

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Epibatidine Analogues as Selective Ligands for the αxβ2‐Containing Subtypes of Nicotinic Acetylcholine Receptors.
Authors: Huang Yiyun , Zhu Zhihong , Xiao Yingxian , Laruelle Marc
Published: November 2005

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Total Synthesis of N‐Malayamycin A (I) and Related Bicyclic Purine and Pyrimidine Nucleosides.
Authors: Hanessian Stephen , Huang Guobin , Chenel Caroline , Machaalani Roger , Loiseleur Olivier
Published: November 2005

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De Novo Asymmetric Synthesis of Daumone via a Palladium‐Catalyzed Glycosylation.
Authors: Guo Haibing , O'Doherty George A.
Published: November 2005

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Chemical Constituents from Roots of Taraxacum formosanum.
Authors: Leu Yann‐Lii , Wang Yu‐Li , Huang Shih‐Chin , Shi Li‐Shian
Published: November 2005

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Potent Inhibitory Effects of N‐Aryl S‐Alkylthiocarbamate Derivatives on the Dopa Oxidase Activity of Mushroom Tyrosinase.
Authors: Lee Kun Ho , Koketsu Mamoru , Choi Sang Yoon , Lee Kang Jin , Lee Pyeongjae , Ishihara Hideharu , Kim Sun Yeou
Published: November 2005

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Orbital and Spin Order in the Triangular S = 1/2 Layered Compound (Li,Na)NiO2
Authors: de Brion S. , Nunez‐Regueiro M. D. , Chouteau G.
Published: November 2005

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Solid‐State NMR of Cation Distributions in Ionic Solid Solutions: From Binary Salts to Ferroelectrics
Authors: Zhao Xingang , Kye Young‐Sik , Harbison Gerard S.
Published: November 2005

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Thermodynamics of Formation of Double Salts and Mixed Crystals from Aqueous Solutions
Authors: Christov Christomir
Published: November 2005

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FePt and CoPt Magnetic Nanoparticles Film for Future High Density Data Storage Media
Authors: Sun Xiangcheng , Huang Yunhe , Nikles David E.
Published: November 2005

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Crystallography of Selected High Pressure Elemental Solids
Authors: Tse John S.
Published: November 2005

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P—T—x Phase Equilibrium and Vapor Pressure Scanning of Non‐Stoichiometry in the Cd—Zn—Te System
Authors: Greenberg J. H.
Published: November 2005

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Metal Complexes with Schiff Base Ligands: Pyridoxal and Semicarbazide‐Based Derivatives
Authors: Leovac Vukadin M. , Jevtovic Violeta S. , Jovanovic Ljiljana S. , Bogdanovic Goran A.
Published: November 2005

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Modification of Metal Alkoxide Precursors by Organofunctional Bidentate Ligands: Chemical Problems and Opportunities for Materials Syntheses
Authors: Schubert Ulrich , Bauer Ulrike , Fric Helmut , Puchberger Michael , Rupp Wolfgang , Torma Viktoria
Published: November 2005

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Cyclophanes as Templates in Stereoselective Synthesis
Authors: Rozenberg Valeria , Sergeeva Elena , Hopf Henning
Published: November 2005

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Fully Conjugated Beltenes (Belt‐like and Tubular Aromatics)
Authors: Herges R.
Published: November 2005

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Reactive Intermediates from Cyclophanes
Authors: Sander Wolfram
Published: November 2005

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Intramolecular Reactions in Cyclophanes
Authors: Hopf Henning
Published: November 2005

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β‐1,3‐Glucan Polysaccharides as Novel One‐Dimensional Hosts for DNA/RNA, Conjugated Polymers and Nanoparticles
Authors: Sakurai Kazuo , Uezu Kazuya , Numata Munenori , Hasegawa Teruaki , Li Chun , Kaneko Kenji , Shinkai Seiji
Published: November 2005

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Nonsteroidal Antiinflammatory Drugs (NSAIDs): A Comparative QSAR Study
Authors: Michaelidou A. S. , Hadjipavlou‐Litina D.
Published: November 2005

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Synthetic Retinoids: Recent Developments Concerning Structure and Clinical Utility
Authors: Kagechika Hiroyuki , Shudo Koichi
Published: November 2005

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Naphtho[2,3‐c]furan‐4,9‐diones and Related Compounds: Theoretically Interesting and Bioactive Natural and Synthetic Products
Authors: Piggott Matthew J.
Published: November 2005

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Stereoselective Cycloadditions of Nitrilimines as a Source of Enantiopure Heterocycles
Authors: Molteni Giorgio
Published: November 2005

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Nucleophilic Substitution as a Tool for the Synthesis of Unsymmetrical Porphyrins
Authors: Senge Mathias O.
Published: November 2005

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Homogeneous Catalysis with Soluble Polymer‐Bound Catalysts as a Unit Operation
Authors: Mecking Stefan
Published: November 2005

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Economics and Scale‐up in Catalysis Using Supercritical Solvents
Authors: Licence Peter , Poliakoff Martyn
Published: November 2005

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Catalyst Immobilization Using SCFs as the only Mass‐Separating Agent
Authors: Gordon Charles M. , Leitner Walter
Published: November 2005

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Homogeneous Catalysis in Supercritical Solvents as a Special Unit Operation
Authors: Gordon Charles M. , Leitner Walter
Published: November 2005

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Application of Phosphonium Salts as Catalysts
Authors: McNulty James
Published: November 2005

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Acidic Catalysis
Authors: Olivier‐Bourbigou Helene
Published: November 2005

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Ionic Liquids: Opportunities for Catalytic Reactions
Authors: Olivier‐Bourbigou Helene , Vallee Christophe
Published: November 2005

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Catalysis with Small Free Noble Metal Clusters
Authors: Bernhardt Thorsten M. , Socaciu Liana D. , Hagen Jan , Popolan Denisia , Le Roux Jerome , Heiz Ulrich , Woeste Ludger
Published: November 2005

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Chiral Spaces in Encapsulation Complexes
Authors: Scarso Alessandro , Shivanyuk Alexander , Hayashida Osamu , Rebek Julius Jr.
Published: November 2005

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Fundamental Studies on Membrane Protein Folding Using Model Transmembrane Helices
Authors: Yano Yoshiaki
Published: November 2005

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The Structures of Organic Molecules in Crystals: Simulations Using the Electrostatic Potential.
Authors: Yatsenko A. V.
Published: November 2005

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Confocal Laser Scanning Microscopy to Study Molecular Mechanism of Mast Cell Activation
Authors: Furuno Tadahide
Published: November 2005

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Reduction of Nitric Oxide over Rutile‐supported Cu Surfaces: A Quantum Chemical Study
Authors: Tan Kai , Lin Meng‐Hai , Wang Nan‐Qin , Zhang Qian‐Er
Published: November 2005

The adsorption and decomposition of NO on the stoichiometric rutile‐supported Cu surfaces have been studied by means of density functional calculations with an embedded cluster model. The calculation results indicate that NO is favorably adsorbed as O‐down and could easily attach another NO molecule to form N2O intermediate or directly be dissociated into N2 and O2. On the basis of the calculated energetics, possible mechanism of NO decomposition reaction has been proposed.
Synthesis, Luminescence and Electrochemical Properties of Two Phenothiazine Derivatives
Authors: Li Dong‐Mei , Zhou Hong‐Ping , Pu Ji‐Qin , Feng Xiao‐Jun , Wu Jie‐Ying , Tian Yu‐Peng , Yu Xiao‐Qiang , Tao Xu‐Tang , Jiang Min‐Hua
Published: November 2005

The synthesis, luminescence and electrochemical properties of two novel phenothiazine derivatives were presented, which exhibit good one‐photon fluorescence emission. The quantum yields and solvent effects of them were studied in detail. Compound 3,7‐bis(2‐4′‐imidazolylbenzylidenehydrazonoethyl)‐(0‐ethylphenothiazine) (5) was used as an effective initiator, of which two‐photon fluorescence spectra were investigated under 800 nm fs laser pulse and the measured two‐photon absorption cross‐section was 18×10−50 cm4·s per photon. Two‐photon initiated polymerization microfabrication experiments were carried out. X‐ray diffraction analyses revealed that the shape of the compound 3,7‐bis(2‐pyrid‐4′‐ylmethylidenehydrazonoethyl)‐(0‐ethylphenothiazine) (4) looks like a butterfly with nearly planar wings. The dihedral angle of the two benzene rings is 37.6° and there is an obvious π‐π stacking interaction between the molecules in the crystal.
Determination of the Specific Heat Capacity of RE(Et2dtc)3(phen) by Microcalorimetry
Authors: Ge Hong‐Guang , Jiao Bao‐Juan , Shuai Qi , Liu Ming‐Yan , Chen San‐Ping , Hu Rong‐Zu , Gao Sheng‐Li
Published: November 2005

A calculation formula for determining the specific heat capacity of solid compound with an improved RD496‐III microcalorimeter was derived. The calorimetric constant and precision determined by the Joule effect were (63.901±0.030) µV/mW and 0.3% at 298.15 K, respectively, and the total disequilibrium heat has been measured by the Peltier effect. The specific heat capacities of two standard substances (benchmark benzoic acid and α‐Al2O3) were obtained with this microcalorimeter, and the differences between their calculated values and literature values were less than 0.4%. Similarly, the specific heat capacities of thirteen solid complexes, RE(Et2dtc) 3(phen) (RE=La, Pr, Nd, SmLu, Et2dtc: diethyldithiocarbamate ion, phen:1,10‐phenanthroline) were gained, and their total deviations were within 1.0%. These values were plotted against the atomic numbers of rare‐earth, which presents tripartite effect, suggesting a certain amount of covalent character in the bond of RE3+ and ligands, according to Nephelauxetic effect of 4f electrons of rare earth ions.
Research on Inorganic Anion Recognition of Calix[4]pyrroles and Dipyrrylmethanes by Capillary Zone Electrophoresis
Authors: Zhou Chang‐Zheng , Qiu Hong‐Deng , Guo Yong , Jiang Sheng‐Xiang
Published: November 2005

Capillary electrophoresis (CE) can separate charged and neutral substances with high speed and efficiency. In this paper, utilizing meso‐octamethylcalix[4]pyrrole, meso‐tetraspirocyclohexylcalix[4]pyrrole, bimethyl bi(2‐pyrryl)‐methane and 1,1‐bi(2‐pyrryl)cyclohexane as additives in capillary zone electrophoresis (CZE) electrolyte, their recognition ability to inorganic anions was discussed. The dipyrrylmethanes have better recognition ability than others. Their effects on separation of seven normal inorganic anions by CZE were studied.
Synthesis and Pharmacological Evaluation of Novel Conjugates of Indomethacin with Antioxidant Activity
Authors: Zhang Yi‐Chun , Chen Ping‐Tao , Guan Hua‐Shi , Li Ying‐Xia
Published: November 2005

A series of new conjugates of indomethacin with phenolic antioxidants were synthesized for enhanced antiinflammatory activity as well as reduced ulcerogenic potency. It was found that all conjugates were very potent antioxidants in vitro. They could inhibit lipid peroxidation significantly, while 11b–11e and 13b–13e could also interact with DPPH. However these conjugates showed little inhibition against croton oil induced mouse ear swelling.
(Bmim)Br3 as a New Reagent for Regioselective Monobromination of Phenols and Several Activated Aromatics under Solvent‐free Conditions
Authors: Le Zhang‐Gao , Chen Zhen‐Chu , Hu Yi
Published: November 2005

Reaction of phenols and activated aromatics with 1‐butyl‐3‐methylimidazolium tribromide [(Bmim)Br3] under solvent‐free conditions gave selectively the corresponding monobromination products in excellent yields.
Partially overlapping distribution of epsin1 and HIP1 at the synapse: Analysis by immunoelectron microscopy
Authors: Yao Pamela J. , Bushlin Ittai , Petralia Ronald S.
Published: November 2005

Synapses of neurons use clathrin‐mediated endocytic pathways for recycling of synaptic vesicles and trafficking of neurotransmitter receptors. Epsin 1 and huntingtin‐interacting protein 1 (HIP1) are endocytic accessory proteins. Both proteins interact with clathrin and the AP2 adaptor complex and also bind to the phosphoinositide‐containing plasma membrane via an epsin/AP180 N‐terminal homology (ENTH/ANTH) domain. Epsin1 and HIP1 are found in neurons; however, their precise roles in synapses remain largely unknown. Using immunogold electron microscopy, we examine and compare the synaptic distribution of epsin1 and HIP1 in rat CA1 hippocampal synapse. We find that epsin1 is located across both sides of the synapse, whereas HIP1 displays a preference for the postsynaptic compartment. Within the synaptic compartments, espin1 is distributed similarly throughout, whereas postsynaptic HIP1 is concentrated near the plasma membrane. Our results suggest a dual role for epsin1 and HIP1 in the synapse: as broadly required factors for promoting clathrin assembly and as adaptors for specific endocytic pathways. J. Comp. Neurol. 494:368–379, 2006. Published 2005 Wiley‐Liss, Inc.
Synaptic connections between eyelet photoreceptors and pigment dispersing factor‐immunoreactive neurons of the blowfly Protophormia terraenovae
Authors: Yasuyama Kouji , Okada Yoshinori , Hamanaka Yoshitaka , Shiga Sakiko
Published: November 2005

Studies using various mutants of Drosophila melanogaster bearing defects in their visual system, including those of the retinal and extraretinal photoreceptor systems, have indicated that the extraretinal photoreceptor known as the Hofbauer‐Buchner (H‐B) eyelet plays an active, if subsidiary, role in the entrainment of circadian rhythms. In the present study, in the context of unraveling the function of extraretinal photoreception on circadian rhythms and photoperiodic responses, we searched for extraretinal photoreceptors in the blowfly, Protophormia terraenovae, and found that this fly has a homolog of the H‐B eyelet. In addition, we show morphologically direct synaptic connections between the eyelet of P. terraenovae (called here Pt‐eyelet, after the species' name) and pigment‐dispersing factor (PDF)‐immunoreactive neurons, which are putative circadian pacemaker neurons, by immunogold electron microscopy combined with intracellular dye injection. The Pt‐eyelet was found to reside in the middle of the posterior surface of the optic lobe between the retina and the lamina, as does the H‐B eyelet. This extraretinal photoreceptor was composed of at least four photoreceptor cells equipped with well‐organized microvillar rhabdomeres. Rhodopsin 6‐like immunoreactivity and also the response to light stimuli clearly showed the Pt‐eyelet to be functional. The Pt‐eyelet terminals in the accessory medulla exhibited synaptic bouton‐like appearances and formed divergent multiple‐contact output synapses. Synaptic contacts from the Pt‐eyelet terminal to the PDF‐immunoreactive neurons were identified by the presence of presynaptic ribbons and accumulated synaptic vesicles. Their possible function is discussed in relation to previous studies on circadian rhythm and photoperiodic response of P. terraenovae. J. Comp. Neurol. 494:331–344, 2006. © 2005 Wiley‐Liss, Inc.