bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis of Aromatic Ketones by a Transition Metal Catalyzed Tandem Sequence.
Authors: Zhao Jing , Hughes Colin O. , Toste F. Dean 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Intramolecular Electrophilic Aromatic Substitution of α‐Alkylcinnamaldehydes Affording 1‐Alkoxy‐2‐alkylindenes.
Authors: Jobashi Takashi , Kawai Atsushi , Kawai Satomi , Maeyama Katsuya , Oike Hideaki , Yoshida Yasuhiko , Yonezawa Noriyuki 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and X‐Ray Analysis of a New [6]Helicene.
Authors: Aloui Faouzi , El Abed Riadh , Guerfel Taha , Ben Hassine Bechir 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of 1‐Arylmethyl‐2‐(cyanomethyl)aziridines and Their Ring Transformation into Methyl N‐(2‐Cyanocyclopropyl)benzimidates.
Authors: D'hooghe Matthias , Mangelinckx Sven , Persyn Evelien , Van Brabandt Willem , De Kimpe Norbert 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Lactones. Part 28. A New Approach for the Synthesis of α‐Methylene Lactones from Alkenes.
Authors: Szumny Antoni , Wawrzenczyk Czeslaw 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Gold‐Catalyzed Intramolecular Carbothiolation of Alkynes: Synthesis of 2,3‐Disubstituted Benzothiophenes (II) from (α‐Alkoxy Alkyl) (ortho‐Alkynyl Phenyl) Sulfides.
Authors: Nakamura Itaru , Sato Takuma , Yamamoto Yoshinori 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Rhodium‐Catalyzed Addition of Arylboronic Acids to Isatins: An Entry to Diversity in 3‐Aryl‐3‐hydroxyoxindoles.
Authors: Toullec Patrick Y. , Jagt Richard B. C. , de Vries Johannes G. , Feringa Ben L. , Minnaard Adriaan J. 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Microwave‐Assisted One‐Pot Synthesis of 1,2,3,4‐Tetrahydrocarbazoles.
Authors: Chen Jing , Hu Yongzhou 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
4‐Functionally‐Substituted 3‐Heterylpyrazoles. Part 17. 3‐Aryl‐1‐phenyl‐4‐pyrazolmethylsulfanyl(sulfinyl, sulfonyl)acetic Acids.
Authors: Bratenko M. K. , Chornous V. A. , Vovk M. V. 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Silica Gel Supported Sodium Hydrogensulfate as a Heterogeneous Catalyst for High Yield Synthesis of 2‐Arylbenzothiazoles.
Authors: Chari M. Adharvana , Shobha D. , Syamasundar K. 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis, Structure, and Cytotoxicity of O‐[3‐(5‐Tetrazolyl)propyl]oximes.
Authors: Rubina K. , Abele E. , Belyakov S. , Shestakova I. , Popelis Yu. 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Direct Synthesis of Tetrahydropyrans (III), (VI) via One‐Pot Babier—Prins Cyclization of Allylbromide with Carbonyl Compounds Promoted by RTILs BPyX/SnX′2 or BBIMBr/SnBr2.
Authors: Zhao Xian‐Liang , Liu Li , Chen Yong‐Jun , Wang Dong 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Unexpected Formation of N,N‐Disubstituted Formamidines from Aromatic Amines, Formamides and Trifluoroacetic Anhydride.
Authors: Mekhalfia Abdelaziz , Mutter Roger , Heal William , Chen Beining 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of 4,4‐Disubstituted‐4H‐benzo[d][1,3]oxathiin‐2‐ones, a New Class of Compounds.
Authors: Kamila Sukanta , Khan Omair , Zhang Hongming , Biehl Edward R. 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Design, Synthesis and Diuretic Activity of Some Novel 2,4‐Diamino‐6‐aryl‐7‐arylaminopyrimido[4,5‐d]pyrimidin‐5‐(6H)‐ones.
Authors: Rathod Ishwarsinh , Chhabria Mahesh T. , Chaudhari Atul S. , Jani Mitesh H. 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Chemoselective Microwave‐Assisted One‐Pot Cross‐Stille Reaction of Benzylic Halides with 2(1H)‐Pyrazinones Using Simultaneous Cooling.
Authors: Appukkuttan Prasad , Husain Mofazzal , Gupta Rajinder K. , Parmar Virinder S. , Van der Eycken Erik 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Subtle Stereochemical and Electronic Effects in Iridium‐Catalyzed Isomerization of C‐Allyl Glycosides.
Authors: Patnam Ramesh , Juarez‐Ruiz Juan M. , Roy Rene 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hetero Diels—Alder Cycloaddition of Indene for the Formal Synthesis of Onychnine.
Authors: Hong Bor‐Cherng , Hallur Mahanandeesha Siddappa , Liao Ju‐Hsiou 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereoselective Synthesis of the Cytotoxic Macrolide FD‐891.
Authors: Garcia‐Fortanet Jorge , Murga Juan , Carda Miguel , Marco J. Alberto 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
What a Difference One Electron Makes! Generating Low‐Coordinate Ti—C and V—C Multiply Bonded Frameworks Through One Electron Oxidatively Induced α‐Hydrogen Abstractions
Authors: Mindiola Daniel J. , Bailey Brad C. , Basuli Falguni 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Investigations of Pd‐Catalyzed ArX Coupling Reactions Informed by Reaction Progress Kinetic Analysis
Authors: Mathew Jinu S. , Klussmann Martin , Iwamura Hiroshi , Valera Fernando , Futran Alan , Emanuelsson Emma A. C. , Blackmond Donna G. 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Properties of SMAPs: 1‐Phospha‐4‐silabicyclo[2.2.2]octane Derivatives
Authors: Ochida Atsuko , Sawamura Masaya 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Application of New N‐Heterocyclic Carbene Ruthenium Complexes in Catalysis: A Case Study
Authors: Delaude Lionel , Demonceau Albert , Noels Alfred F. 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Bis(allyl)‐ruthenium(IV) Complexes: Promising Precursors for Catalytic Organic Synthesis
Authors: Cadierno Victorio , Crochet Pascale , Garcia‐Garrido Sergio E. , Gimeno Jose 
Published: October 2006

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Actuation methods for applications in MR environments
Authors: Gassert Roger , Yamamoto Akio , Chapuis Dominique , Dovat Ludovic , Bleuler Hannes , Burdet Etienne 
Published: October 2006

AbstractThe choice of an adequate actuation method is a central issue in the development of any mechatronic device and strongly determines the dynamic performances of the system. This choice is particularly difficult for robotic systems working within a magnetic resonance (MR) environment because of the safety and compatibility constraints imposed by the high magnetic field, switching gradients, electromagnetic pulses, and sensitive measuring equipment involved. This article analyzes actuation methods for robotic systems to be used within a magnetic resonance environment, such as systems for diagnostic and interventional MRI, neuroscience studies during functional MRI, and diagnostic fMRI. In the case of functional MRI, actuation is also required during imaging, whereas current MR‐compatible interventional systems are typically moved between imaging phases. Our analysis is based on a variety of actuation principles that we have tested both for MR compatibility and for the quality of force feedback that can be realized, including hydrostatic, belt, and cable transmissions as well as electrostatic and piezoelectric actuators. The results are completed with developments of other groups. A good solution to a given application often involves a combination of several actuation principles. A synthesis of characteristics and three comparative tables aid in the choice of an adequate actuation method for a given task or application. © 2006 Wiley Periodicals, Inc. Concepts Magn Reson 29B: 191–209, 2006.
Effects of obesity and height on prostate‐specific antigen (PSA) and percentage of free PSA levels among African‐American and Caucasian men
Authors: Fowke Jay H. , Signorello Lisa B. , Chang Sam S. , Matthews Charles E. , Buchowski Maciej S. , Cookson Michael S. , Ukoli Flora M. , Blot William J. 
Published: October 2006

AbstractBACKGROUND.Prior studies suggest that obese men have lower prostate‐specific antigen (PSA) levels than leaner men. Caucasian (CA) men also may have lower PSA levels than African‐American (AA) men, but the relevance of body size to racial disparities in PSA levels is unclear. The association between body mass index (BMI) and height on PSA and percentage of free PSA (%fPSA) was investigated within AA and CA men without a prior prostate cancer diagnosis.METHODS.AA (n = 150) and CA (n = 149) men of similar socioeconomic status completed an extensive in‐person interview and donated blood. PSA and %fPSA levels were compared across race, BMI, and height categories after adjusting for age and other factors.RESULTS.PSA levels decreased with increasing BMI (PSA = .72, .69, .67, .59 ng/mL for BMI 18.5 to <25, 25 to <30, 30 to <35, and ≥35, respectively; Ptrend = .18), and trends were significant among men less than age 60 years (PSA = .81, .76, .66, .59, respectively; Ptrend = .02). fPSA also significantly decreased with BMI among men <60 years (Ptrend = .04). In contrast, %fPSA was not associated with BMI. However, %fPSA increased 27% across height categories (Ptrend = .02). PSA levels were significantly lower among CA men (PSAAA = 0.87, PSACA = 0.63 ng/mL; P < .01), whereas %fPSA levels did not differ by race. Also, associations between body size and PSA or %fPSA did not significantly differ by race, and adjustment for BMI and height had no effect on the racial disparity in PSA (PSAAA = 0.87, PSACA = 0.63 ng/mL; P < .01).CONCLUSIONS.The data suggest that race, BMI, and height are independently associated with PSA and %fPSA levels. Cancer 2006. © 2006 American Cancer Society.
Effect of housing factors and surficial uranium on the spatial prediction of residential radon in Iowa
Authors: Smith Brian J. , Field R. William 
Published: October 2006

AbstractGrowing epidemiologic evidence suggests that residential radon is an important risk factor for lung cancer. Consequently, public health professionals have expressed interest in characterizing the spatial distribution of radon concentrations in order to identify geographic regions of high exposure. Ambient radon concentrations are a function of geologic features including soil radium content. Indoor radon concentrations can vary based on building characteristics that affect the entry of radon into the building and movement between rooms therein. We present a geostatistical hierarchical Bayesian model for radon that allows for spatial prediction based on geologic data and housing characteristics. Our model is applied to radon data from an epidemiologic study in Iowa that consist of 136 outdoor measurements and 2590 indoor measurements from 614 residential homes. Housing characteristics collected in the Iowa Study are included as predictors in the model. Geologic data in the form of county‐average surficial uranium concentrations from the USGS National Uranium Resource Evaluation project are also considered. A ‘change of support’ approach is implemented to combine the radon measurements, collected at points in space, and the uranium concentrations, averaged over counties, so that point‐source concentrations for the latter are available for the analysis. Estimates of the effect of select housing factors on radon are provided along with spatial maps of predicted radon concentrations in Iowa. Copyright © 2006 John Wiley & Sons, Ltd.
Is the loudness dependence of auditory evoked potentials modulated by the selective serotonin reuptake inhibitor citalopram in healthy subjects?
Authors: Uhl Idun , Gorynia Inge , Gallinat Jürgen , Mulert Christoph , Wutzler Alexander , Heinz Andreas , Juckel Georg 
Published: October 2006

AbstractThe loudness dependence of auditory evoked potentials (LDAEP) has been discussed as a non‐invasive in vivo marker of central serotonergic function. Evidence for this has been found in animal studies, but studies in humans provide less consistent results. In this study, the relationship between LDAEP and directly modulated central serotonergic activity in healthy subjects was investigated. In a single‐blind cross‐over design, the LDAEP of female participants (age: 24.0 ± 2.3 years) was measured under two conditions: (1) infusion of 20 mg citalopram diluted in 250 ml 0.9% saline and (2) infusion of 250 ml 0.9% saline as placebo. LDAEP was measured at five different time points before, during and up to 60 min after drug/placebo administration and dipole source analysis was performed. The increase of the central serotonin activity in response to citalopram was not accompanied by a significant change of the LDAEP compared to the placebo condition. The result underlines that the acceptance of LDAEP as a marker of central serotonergic function still needs further discussion. Copyright © 2006 John Wiley & Sons, Ltd.
Effect of risperidone on plasma catecholamine metabolites and brain‐derived neurotrophic factor in patients with bipolar disorders
Authors: Yoshimura Reiji , Nakano Yuichiro , Hori Hikaru , Ikenouchi Atsuko , Ueda Nobuhisa , Nakamura Jun 
Published: October 2006

AbstractA combination treatment with a mood stabilizer and an antipsychotic drug is often used in as many as 90% of subjects with acute mania. Recently, augmentation therapy with atypical antipsychotics has been investigated in both the acute and long‐term treatment of bipolar disorder with or without psychosis. In the present study, the authors investigated the efficacy of risperidone treatment for both acute manic and depressive episodes in bipolar disorder. Eighteen patients (M/F: 8/10, age: 34 ± 15 yr) who met the DSM‐IV criteria for bipolar I disorder (12 cases of manic episodes, 6 cases of depressive episodes) with risperidone treatment were evaluated regarding their clinical improvement using the Young Mania rating Scale (YMRS) and the Hamilton rating Scale for Depression (Ham‐D). Plasma concentrations of HVA and MHPG were analyzed by HPLC‐ECD and plasma brain‐derived neurotrophic factor (BDNF) levels were detected by sandwich ELISA. The mean scores of the YMRS were 22, 18, 12, 8, and 5 at time points before and 1, 2, 3, and 4 weeks after the risperidone administration, respectively. The mean scores of the Ham‐D were 24, 25, 21, 21, and 19 at time points before and 1, 2, 3, and 4 weeks after the risperidone administration, respectively. The plasma levels of HVA and 3‐methoxy‐4‐hydroxyphenylglycol (MHPG) were observed to have decreased 4 weeks after risperidone administration in manic patients. The levels did not change in depressive patients. The plasma levels of BDNF were decreased in depressive patients compared with manic patients or healthy controls. However, the administration of risperidone did not alter plasma BDNF levels. Copyright © 2006 John Wiley & Sons, Ltd.
Executive functioning deficits in relation to symptoms of ADHD and/or ODD in preschool children
Authors: Thorell Lisa B. , Wåhlstedt Cecilia 
Published: October 2006

AbstractThe present study investigated the relation between executive functioning and symptoms of Attention‐Deficit/Hyperactivity Disorder (ADHD) and Oppositional Defiant Disorder (ODD) in children aged 4–6. A population‐based sample (n=201) was used and laboratory measures of inhibition, working memory and verbal fluency and teacher ratings of disruptive behaviour problems were collected. Both group differences and linear relations were studied and comorbidity was controlled for dimensionally. In both categorical and dimensional analyses, executive functioning was associated with symptoms of ADHD, but not with symptoms of ODD when controlling for comorbidity, and no significant interactive effects of ADHD and ODD symptoms were found. Effect sizes for significant effects were generally in the medium range. Regarding sex differences, the control for comorbid ODD symptoms appeared to affect the relation between ADHD symptoms and executive functioning somewhat more for girls compared with boys. In conclusion, poor executive functioning in preschool appears to be primarily related to symptoms of ADHD, whereas the relation to symptoms of ODD can be attributed to the large overlap between these two disruptive disorders. Copyright © 2006 John Wiley & Sons, Ltd.
Antibacterial nanosized silver substituted hydroxyapatite: Synthesis and characterization
Authors: Rameshbabu N. , Sampath Kumar T.S. , Prabhakar T.G. , Sastry V.S. , Murty K.V.G.K. , Prasad Rao K. 
Published: October 2006

AbstractThe silver (0.5–3 at %) substituted nanosize hydroxyapatites (AgHAs) were synthesized by microwave processing. The X‐ray diffraction (XRD) peaks are very broad, indicating that the AgHAs were of nanosize (30 nm). Transmission electron microscopy analysis shows needle‐like morphology of AgHA, having length 60–70 nm and width 15–20 nm. The AgHA phase was stable up to 700°C without any secondary phases. The antibacterial effect of AgHA against Escherichia coli and Staphylococcus aureus was observed by spread plate method, even for low concentration of silver ions (0.5%) with 1 × 105 cells/mL of respective bacterial culture, after a 48 h incubation period. However, some colonies of E. coli were seen with a high dose of 1 × 108 cells/mL after 24 h. The zone of inhibition by disc diffusion test method was found to vary with the amount of silver in the sintered AgHA pellets, for both the bacteria, after 24 h of inoculation. Osteoblast cell attachment in varying density was noticed on AgHA samples with 0.5, 1.0, and 1.5% silver substitution. However, osteoblast spreading was significantly greater on 0.5% AgHA compared to 1.0 or 1.5% substituted AgHA samples. Thus, the low amount of AgHA has a potential of minimizing the risk of bacterial contamination, without compromising the bioactivity, and is expected to display greater biological efficacy in terms of osseointegration. © 2006 Wiley Periodicals, Inc. J Biomed Mater Res, 2007
TRAIL apoptosis is enhanced by quercetin through Akt dephosphorylation
Authors: Kim Young‐Ho , Lee Yong J. 
Published: October 2006

AbstractTNF‐related apoptosis‐inducing ligand (TRAIL) is a promising cancer therapy that preferentially induces apoptosis in cancer cells. However, many neoplasms are resistant to TRAIL by mechanisms that are poorly understood. Here we demonstrated that human prostate cancer cells, but not normal prostate cells, are dramatically sensitized to TRAIL‐induced apoptosis and caspase activation by quercetin. Quercetin, a ubiquitous bioactive plant flavonoid, has been shown to inhibit the proliferation of cancer cells. We have shown that quercetin can potentiate TRAIL‐induced apoptotic death. Human prostate adenocarcinoma DU‐145 and LNCaP cells were treated with various concentrations of TRAIL (10–200 ng/ml) and/or quercetin (10–200 µM) for 4 h. Quercetin, which caused no cytotoxicity by itself, promoted TRAIL‐induced apoptosis. The TRAIL‐mediated activation of caspase, and PARP (poly(ADP‐ribose) polymerase) cleavage were both enhanced by quercetin. Western blot analysis showed that combined treatment with TRAIL and quercetin did not change the levels of TRAIL receptors (death receptors DR4 and DR5, and DcR2 (decoy receptor 2)) or anti‐apoptotic proteins (FLICE‐inhibitory protein (FLIP), inhibitor of apoptosis (IAP), and Bcl‐2). However, quercetin promoted the dephosphorylation of Akt. Quercetin‐induced potent inhibition of Akt phosphorylation. Taken together, the present studies suggest that quercetin enhances TRAIL‐induced cytotoxicity by activating caspases and inhibiting phosphorylation of Akt. J. Cell. Biochem. 100: 998–1009, 2007. © 2006 Wiley‐Liss, Inc.