bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis of Benzonorcaradienes by Gold(I)‐Catalyzed [4 + 3] Annulation.
Authors: Gorin David J. , Dube Pascal , Toste F. Dean 
Published: February 2007

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.
Photo‐ and Thermochromic Spiranes. Part 24. Novel Photochromic Spiropyrans from 2,4‐Dihydroxyisophthalaldehyde
Authors: Alekseenko Yu. S. , Lukyanov B. S. , Utenyshev A. N. , Mukhanov E. L. , Kletskii M. E. , Tkachev V. V. , Kravchenko N. N. , Minkin V. I. , Aldoshin S. M. 
Published: February 2007

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 and N‐Iodosuccinimide‐Mediated Cyclization of γ‐Substituted Allenamides.
Authors: Hyland Christopher J. T. , Hegedus Louis S. 
Published: February 2007

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.
Lewis Acid Promoted Synthesis of 2(3H)‐Benzofuranones.
Authors: Babu B. Ravindra , Bali Shilpika , Sakhuja Rajeev , Jain Subhash C. 
Published: February 2007

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.
Aryl Pyrrolidinones via Radical 1,4‐Aryl Migration and 5‐endo‐trig Cyclization of N‐(2‐Bromoallyl)arylcarboxamides.
Authors: Palframan Matthew J. , Tchabanenko Kirill , Robertson Jeremy 
Published: February 2007

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 Monomeric and Oligomeric 1,1′‐Methylenebis(1H‐pyrazoles) Containing Ethynyl Fragments.
Authors: Potapov A. S. , Khlebnikov A. I. , Vasilevskii S. F. 
Published: February 2007

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.
Facile and Scalable Synthesis of Imidazolium Halides Using Dimethylmethyleneammonium Salts as Ring Closing Reagents.
Authors: Mistryukov Electron A. 
Published: February 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
One‐Step Synthesis of 2‐Aminothiazoline Derivatives Free of Lachrymatory Intermediates.
Authors: Bijev Atanas , Prodanova Penka 
Published: February 2007

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.
The Ring Opening of 3,4‐Dichloro‐1,2,5‐thiadiazole with Metal Amides. A New Synthesis of 3,4‐Disubstituted‐1,2,5‐thiadiazoles.
Authors: Merschaert Alain , Boquel Pascal , Gorissen Hugo , Van Hoeck Jean‐Pierre , Borghese Alfio , Antoine Luc , Mancuso Vincent , Mockel Anne , Vanmarsenille Michel 
Published: February 2007

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.
Condensation of 1,1,1‐Trifluoropentane‐2,4‐dione with Benzaldehyde.
Authors: Aliev Z. G. , Gein V. L. , Nosova N. V. , Potemkin K. D. , Kriven'ko A. P. 
Published: February 2007

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 Facile Transformation of 2‐Aminochromone to 4‐Chlorocoumarin and Its Reaction with Ethylenediamine.
Authors: Ghosh Tarun , Sur Kumar Ranabir , Bandyopadhyay Chandrakanta 
Published: February 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reaction of 4‐Aryl‐2‐aminobuta‐1,3‐diene‐1,1,3‐tricarbonitriles with CH‐Nucleophiles. Part 1. Synthesis of 5‐Aryl‐2,4‐diamino‐8,8‐dimethyl‐6‐oxo‐6,7,8,9‐tetrahydro‐5H‐chromeno [2,3‐b]pyridine‐3‐carbonitriles (III).
Authors: Ershov O. V. , Melekhin E. A. , Bardasov I. N. , Kayukov Ya. S. , Eremkin A. V. , Nasakin O. E. 
Published: February 2007

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.
Hg(OTf)2‐Catalyzed Cyclization of Alkynyl tert‐Butylcarbonate Leading to Cyclic Enol Carbonate.
Authors: Yamamoto Hirofumi , Nishiyama Mami , Imagawa Hiroshi , Nishizawa Mugio 
Published: February 2007

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 N‐Nitroarylation of Some Pyrimidine and Purine Nucleobases.
Authors: Khalafi‐Nezhad Ali , Zare Abdolkarim , Parhami Abolfath , Navid Mohammad , Rad Soltani , Nejabat Gholam Reza 
Published: February 2007

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 Fused Triazolothienopyrimidine Derivatives
Authors: Vas'kevich R. I. , Savitskii P. V. , Zborovskii Yu. L. , Staninets V. I. , Turov A. V. , Chernega A. N. 
Published: February 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reaction of 2,3‐Epoxyoctafluorobutane with 2‐Aminobenzenethiol.
Authors: Saloutina L. V. , Zapevalov A. Ya. , Saloutin V. I. , Kodess M. I. , Kirichenko V. E. , Pervova M. G. , Chupakhin O. N. 
Published: February 2007

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.
Tandem [2 + 2] Cycloaddition and Cope Rearrangement in Reactions of Cross‐Conjugated Azatrienes with Conjugated Ketenes: A Facile Single Step Synthesis of Novel Azocinone Derivatives.
Authors: Singh Parvesh , Bhargava Gaurav , Mahajan Mohinder Pl 
Published: February 2007

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.
New A‐Ring Lactone Triterpenoid Saponins from the Roots of Platycodon grandiflorum
Authors: Fu Wen‐Wei , Shimizu Noriko , Takeda Tadahiro , Dou De‐Qiang , Chen Baohui , Pei Yue‐Hu , Chen Ying‐Jie 
Published: February 2007

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.
Two New 15‐Deoxycimigenol‐Type and Three New 24‐epi‐Cimigenol‐Type Glycosides from Cimicifuga Rhizome
Authors: Yoshimitsu Hitoshi , Nishida Makiko , Sakaguchi Masahide , Nohara Toshihiro 
Published: February 2007

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 Absolute Configuration of (+)‐Pseudodeflectusin: Structural Revision of Aspergione B.
Authors: Saito Fumiyo , Kuramochi Kouji , Nakazaki Atsuo , Mizushina Yoshiyuki , Sugawara Fumio , Kobayashi Susumu 
Published: February 2007

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.
3D QSAR Studies on Protein Tyrosine Phosphatase 1B Inhibitors: Comparison of the Quality and Predictivity Among 3D QSAR Models Obtained from Different Conformer‐Based Alignments.
Authors: Pandey Gyanendra , Saxena Anil K. 
Published: February 2007

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.
Platinum Complexes with Cytotoxic Activity: Models for Structure‐Activity Relationship Studies
Authors: de Mier‐Vinue Jordi , Montana Angel M. , Moreno Virtudes 
Published: February 2007

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.
PULSAR: A Matlab toolbox for parallel magnetic resonance imaging using array coils and multiple channel receivers
Authors: Ji Jim X. , Son Jong Bum , Rane Swati D. 
Published: February 2007

AbstractPartial parallel imaging (PPI) techniques using array coils and multichannel receivers have become an effective approach to achieving fast magnetic resonance imaging (MRI). This article presents a Matlab toolbox called PULSAR (Parallel imaging Utilizing Localized Surface‐coil Acquisition and Reconstruction) that can simulate the data acquisition and image reconstruction, and analyze performance of five common PPI techniques. PULSAR can simulate sensitivity functions of rectangular loop coils using a quasi‐static model based on Biot‐Savart's Law and undersampled multichannel data acquisition on a rectilinear k‐space grid. In addition, PULSAR provides performance evaluation of the techniques based on artifact power (AP), signal‐to‐noise ratio (SNR), and computational complexity. In this article, the structure and functionality of the PULSAR toolbox are described. Examples using both the simulated and real four‐channel and eight‐channel data were used to demonstrate the utilities of the toolbox and to show that PULSAR is a convenient and effective means to study the PPI under different coil geometries, acquisition strategies, and reconstruction methods. © 2007 Wiley Periodicals, Inc. Concepts Magn Reson Part B (Magn Reson Engineering) 31B: 24–36, 2007
Diversity and Zoogeography of Rotifera (Monogononta) in a Flood Plain Lake of the Ichilo River, Bolivia, with Notes on Little‐Known Species
Authors: Segers Hendrik , Ferrufino Niniver L. , de Meester Luc 
Published: February 2007

AbstractResults are presented on a study of the momentary species diversity of Rotifera in “Laguna Bufeos”, a flood plain lake of the Ichilo River in Bolivia. A total of 104 morphospecies of monogonont Rotifera were identified from three samples collected on June 1, 1997. The species record includes 11% Neotropical endemics, 5% pantropical and 13% tropicopolitan taxa. Four taxa, viz. Aspelta lestes Harring and Myers, 1928; Colurella denticauda Carlin, 1939; Ptygura intermedia (Davis, 1867) and Trichocerca kostei Segers, 1993 are newly recorded from South America, 67 morphospecies are new to the Bolivian fauna. Notes are added on some selected taxa. Brachionus amazonica Koste and Robertson, 1983 (stat. nov.) is elevated to morphospecies rank.
Thermal Properties and Morphology of Poly(3‐Hydroxybutyrate‐co‐3‐Hydroxyvalerate) with Poly(Caprolactone Triol) Mixtures
Authors: Wessler Katiusca , Nishida Maurício Hajime , da Silva João , Pezzin Ana Paula Testa , Pezzin Sérgio H. 
Published: February 2007

AbstractAiming the development of new ductile and porous biodegradable materials, blends of poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate), P(3HB‐co‐3HV), and polycaprolactone triol, PCL‐T, with compositions varying from 100/0 to 70/30 P(3HB‐co‐3HV)/PCL‐T (w/w), were obtained by casting. The phase behavior, the morphology and the crystallinity of P(3HB‐co‐3HV)/PCL‐T blends were studied by differential scanning calorimetry, thermogravimetric analysis, scanning electron microscopy and X‐ray diffraction. DSC analyses showed that the glass transition temperature of P(3HB‐co‐3HV) decreases with the addition of PCL‐T up to 15 wt%, evidencing that mixtures with higher PCL‐T contents provide more flexible films, acting as a plasticizer, but the porosity and onset degradation temperature of P(3HB‐co‐3HV) are not affected.
Asymptotic stabilization of the hanging equilibrium manifold of the 3D pendulum
Authors: Chaturvedi Nalin A. , McClamroch N. Harris 
Published: February 2007

AbstractThe 3D pendulum consists of a rigid body, supported at a fixed pivot, with three rotational degrees of freedom; it is acted on by gravity and it is fully actuated by control forces. The 3D pendulum has two disjoint equilibrium manifolds, namely a hanging equilibrium manifold and an inverted equilibrium manifold. This paper shows that a controller based on angular velocity feedback can be used to asymptotically stabilize the hanging equilibrium manifold of the 3D pendulum. Lyapunov analysis and nonlinear geometric methods are used to assess the global closed‐loop properties. We explicitly construct compact sets that lie in the domain of attraction of the hanging equilibrium of the closed‐loop. Finally, this controller is shown to achieve almost global asymptotic stability of the hanging equilibrium manifold. An invariant manifold of the closed‐loop that converges to the inverted equilibrium manifold is identified. Copyright © 2007 John Wiley & Sons, Ltd.
Improving the quality of used frying oils by treatment with activated carbon and silica
Authors: McNeill John , Kakuda Yukio , Kamel Basil 
Published: February 2007

AbstractThis study was undertaken to investigate the effectiveness of activated carbon and silica in removing the degradation products present in used frying oils. Two batches of canola oil were treated with mixtures of activated carbon and silica. Three levels of activated carbon (3%, 6%, 9%, wt/wt) were blended with three levels of a silica compound (2%, 4%, 6%, wt/wt) in all nine possible combinations. Oil 1 was prepared by continuous heating in the lab, and oil 2 was obtained from a small potato‐frying operation. For each treatment combination of silica and carbon, the average percent decrease for acid value, peroxide value, photometric color, polar compounds, saturated carbonyls and unsaturated carbonyls was 53.9%, 39.4%, 38.3%, 27.5%, 54.0% and 27.3%, respectively, for oil 1, and 51.1%, 53,5%, 49.7%, 16.3%, 58.9% and 39.0%, respectively, for oil 2. The levels of oleic, linoleic and linolenic acids decreased by 28%, 33% and 35%, respectively, following heat treatment but were shown to increase by 1 to 5% after adsorbent treatment. The yield of treated oil ranged from 56 to 83%.
High temperature reactions of fats with amino acids
Authors: Sims R. J. , Fioriti J. A. 
Published: February 2007

AbstractHeating of fatty esters with α‐amino acids at temperatures above 150 C gave substantial yields of N‐substituted amides. The reaction involves decarboxylation of the amino acid and displacement of the alcohol moiety by the amine which is formed. Decarboxylation is a ca. zero order reaction in which the ester group is involved directly. It is suggested that these observations are consistent with a concerted mechanism. Only the simple α‐amino acids, which contain no additional functional groups, yielded significant amounts of N‐substituted amides under these conditions.
A light test to measure stability of edible oils
Authors: Moser Helen A. , Evans C. D. , Cowan J. C. , Kwolek W. F. 
Published: February 2007

AbstractThe effect of light on the flavor of edible oils and of various fat‐containing foods is reviewed to show its importance in food studies and the need for a method of evaluation. Such a test, in which fluorescent light is used in an easily assembled unit, has been developed, and the parameters for its use have been determined. Identical samples of soybean oil exposed on 10 different days and organoleptically evaluated show the method to be reproducible with a standard deviation of 0.79 with a scoring system of 1舑10. This method was then applied to soybean, cottonseed, safflower and hydrogenated‐winterized soybean oils, and a light‐exposure value was determined for each oil based on a comparison with accelerated storage procedures ordinarily used. Advantages of this light test over current procedures are the short time required for completion, the reduction of variation by a controlled light source, reproducibility of results and its adaptability to related food products.
Influence of sward condition on leaf tissue turnover in tall fescue and tall wheatgrass swards under continuous grazing
Authors: Agnusdei M. G. , Assuero S. G. , Fernández Grecco R. C. , Cordero J. J. , Burghi V. H. 
Published: February 2007

SummaryTwo experiments were carried out on a tall fescue sward in two periods of spring 1994 and on a tall wheatgrass sward in autumn 2001 and spring 2003 to analyse the effect of sward surface height on herbage mass, leaf area index and leaf tissue flows under continuous grazing. The experiment on tall fescue was conducted without the application of fertilizer and the experiment with tall wheatgrass received 20 kg P ha−1 and a total of 100 kg N ha−1 in two equal dressings applied in March (autumn) and end of July (mid‐winter).Growth and senescence rates per unit area increased with increasing sward surface height of swards of both species. Maximum estimated lamina growth rates were 28 and 23 kg DM ha−1 d−1 for the tall fescue in early and late spring, respectively, and 25 and 36 kg DM ha−1 d−1 for tall wheatgrass in autumn and spring respectively. In the tall fescue sward, predicted average proportions of the current growth that were lost to senescence in early and late spring were around 0·40 for the sward surface heights of 30–80 mm, and increased to around 0·60 for sward surface heights over 130 mm. In the tall wheatgrass sward the corresponding values during spring increased from around 0·40 to 0·70 for sward surface heights between 80 and 130 mm. During autumn, senescence losses exceeded growth at sward surface heights above 90 mm. These results show the low efficiency of extensively managed grazing systems when compared with the high‐input systems based on perennial ryegrass.
The C‐terminus of pokeweed antiviral protein has distinct roles in transport to the cytosol, ribosome depurination and cytotoxicity
Authors: Baykal Ulku , Tumer Nilgun E. 
Published: February 2007

SummaryPokeweed antiviral protein (PAP) produced by pokeweed plants is a single‐chain (type I) ribosome‐inactivating protein (RIP) that depurinates ribosomes at the α‐sarcin/ricin loop of the large rRNA, resulting in inhibition of translation. Unlike the type II RIPs, which have an active and a binding moiety, PAP has only the active moiety. The mechanism by which toxins without a binding moiety gain access to cytosolic ribosomes is not known. We set up yeast as a simple and genetically tractable system to investigate how PAP accesses ribosomes and showed that the mature form of PAP is targeted to the cytosol from the endomembrane system in yeast. In the present study, we performed a systematic deletion analysis to identify the signal required for transport of PAP to the cytosol. We demonstrate here that processing of the C‐terminal extension and sequences at the C‐terminus of the mature protein are critical for its accumulation in the cytosol. Using a series of PAP mutants, we identified the C‐terminal signal and demonstrated that it is distinct from the sequences required for ribosome depurination and cytotoxicity. The C‐terminal motif showed sequence similarity to type II RIPs that retrotranslocate from the endoplasmic reticulum to the cytosol. These results demonstrate that a conserved sequence at the C‐terminus of a type I RIP mediates its transport to the cytosol and suggest that type I and II RIPs may use a common signal to enter the cytosol.
Contemporaryin vivoconfocal microscopy of the living human cornea using white light and laser scanning techniques: a major review
Authors: Patel Dipika V , McGhee Charles NJ 
Published: February 2007

AbstractIn vivoconfocal imaging of the cornea has evolved exponentially over the last few decades and it has increasingly emerged from the laboratory to be used in the clinical setting in relation to inherited corneal diseases, corneal infections, contact lens wear and the effects of corneal surgery. This evolution has led to significant enhancement of our knowledge of the living cornea in both its physiological and pathological states. A number ofin vivoconfocal microscope devices using white, and more recently coherent, light sources have been developed to provide non‐invasive assessment of the corneal microstructure at a lateral resolution of 1–2 µm. The fundamental principles ofin vivoconfocal microscopy and the key differences between these devices are highlighted in this review. By providing a systematic review of the extensive literature on the human cornea, this perspective paper aims to provide an overview of howin vivoconfocal microscopy has contributed to our greater understanding of the human cornea in health, in disease, and following surgery, with a particular emphasis on quantitative data. The utility and limitations of available data are highlighted as are possibilities for the future development of this innovative technology.
Pediatric Bipolar Disorder: Evidence‐Based Psychopharmacological Treatments
Authors: Hamrin Vanya , Pachler Maryellen 
Published: February 2007

TOPIC:  Pediatric bipolar disorder can cause severe disturbances in global functioning. Diagnosing pediatric bipolar disorder is challenging due to the range of symptom expression, developmental differences as compared to adults, presence of comorbid disorders, and developing diagnostic criteria. Treating this disorder can be equally challenging due to frequent symptom relapse and the dearth of research until recently on effective psychopharmacological interventions that guide clinical prescribing practices. PURPOSE:  This paper will help child psychiatric nurses have a better understanding of the unique presentation of pediatric bipolar disorder to facilitate selection of appropriate medication treatment options, taking into account symptom presentation, presence of comorbid diagnosis, drug efficacy, adverse effects, and drug–drug interactions based on research findings. SOURCES:  Literature specific to assessment and psychopharmacological treatment of pediatric bipolar disorder was reviewed. CONCLUSIONS:  Screening of youth with mood spectrum problems for bipolar disorder should occur in every diagnostic assessment and should be ongoing due to range of mood symptoms and the cyclical and episodic nature of this disorder. Youth with bipolar disorder may manifest symptoms and course that differ from adults. Additionally, co‐occuring disorders are common in this population, which can complicate medication selection. Psychopharmacological treatment with the use of specific mood stabilizers and/or atypical antipsychotic medications is warranted depending on symptom presentation; however, monotherapy with mood stabilizers has not demonstrated effectiveness in long‐term remission of pediatric bipolar symptoms. Recent research indicates that a combined treatment with two mood stabilizers or a mood stabilizer and an antipsychotic holds promising results for pediatric bipolar I, for youth with acute manic symptoms plus psychosis, and for long‐term remission of symptoms.