bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: MgCl2×6H2O/p‐TSA Catalyzed Simple and Efficient Synthesis of Some Known and Novel Quinolines.
Authors: Pasha M. A. , Jayashankara V. P. , Mahammed K. A. 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of Novel 5,7‐Disubstituted 8‐Hydroxyquinolines
Authors: Himmi Banacer , Joly Jean‐Pierre , Hlimi Fouzia , Soufiaoui Mohamed , Kitane Said , Bahloul Abdelmejid , Eddaif Abdelhamid , Sebban Abdelfatah 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Green and Efficient Synthesis of Furo[3,4‐e]pyrazolo[3,4‐b]pyridine Derivatives in Water under Microwave Irradiation Without Catalyst.
Authors: Shi Feng , Wang Qian , Tu Shujiang , Zhou Jianfeng , Jiang Bo , Li Chunmei , Zhou Dianxiang , Shao Qingqing , Cao Longji 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Facile Acidic Hydrolysis and Displacement Reactions of 2‐Chloro‐ and 2,9‐Dichloro‐1,10‐phenanthroline.
Authors: Krapcho A. Paul , Sparapani Silvia 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Facile Synthesis and Heteroannulation of Thiazolopyrimidine and Related Heterocyclic Systems.
Authors: Aly A. A. 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of Novel Heterocyclic Calixarenes via the Diels—Alder Reaction of Calix[4]bis(spirodienones).
Authors: Ganga V. B. , Suresh E. , Suresh C. H. , Varma R. Luxmi 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Ring‐Closing Metathesis for the Synthesis of a Highly G‐Quadruplex Selective Macrocyclic Hexaoxazole Having Enhanced Cytotoxic Potency.
Authors: Satyanarayana Mavurapu , Rzuczek Suzanne G. , LaVoie Edmond J. , Pilch Daniel S. , Liu Angela , Liu Leroy F. , Rice Joseph E. 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Ferrrocene Derivative Redox Sensor for Mercuric Ion: Synthesis and Electrochemical Study.
Authors: Bui Nhat‐Nguyen , Hong Jong‐Tai , Mho Sun‐il , Jang Hye‐Young 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Taxodal, a Novel Irregular Abietane‐Type Diterpene from the Cones of Taxodium distichum.
Authors: Kusumoto Norihisa , Murayama Tetsuya , Kawai Yasushi , Ashitani Tatsuya , Ogiyama Koichi , Takahashi Koetsu 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Efficient Synthesis of Aza‐Phenanthroindolizidine and Aza‐Phenanthroquinolizidine and Anticancer Activities.
Authors: Wang Kailiang , Wang Wenlong , Wang Qingmin , Huang Runqiu 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: First Total Synthesis of (.+‐.)‐Abyssinoflavanone V.
Authors: Yang Jin Hui , Zhao Yan Min , Ji Cong Bin 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Chrobisiamone A, a New Bischromone from Cassia siamea and a Biomimetic Transformation of 5‐Acetonyl‐7‐hydroxy‐2‐methylchromone into Cassiarin A.
Authors: Oshimi Shiori , Tomizawa Yuichiro , Hirasawa Yusuke , Honda Toshio , Ekasari Wiwied , Widyawaruyanti Aty , Rudyanto Marcellino , Indrayanto Gunawan , Zaini Noor Cholies , Morita Hiroshi 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Constituents from Clausena excavata.
Authors: Xin Zhen‐Qiang , Lu Jing‐Jian , Ke Chang‐Qiang , Hu Chao‐Xin , Lin Li‐Ping , Ye Yang 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: The Assembly Line: Self‐Assembling Nanocars.
Authors: Sasaki Takashi , Guerrero Jason M. , Tour James M. 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Dynamical Resonances in the Fluorine Atom Reaction with the Hydrogen Molecule
Authors: Yang Xueming , Zhang Dong H. 
Published: October 2008

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 of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Cramer–Rao bound and minimum variance unbiased estimator for joint sampling clock offset and channel taps in MC‐CDMA systems
Authors: Seirafian Amir , Vakily Vahid Tabataba 
Published: October 2008

AbstractExact closed‐form expressions of the Cramer–Rao bound (CRB) for joint sampling clock offset and channel taps are obtained in multi‐carrier code division multiple access systems. CRB is undoubtedly the most well known variance's bound to determine. It provides a benchmark against which we can compare the performance of any unbiased estimator. Furthermore, minimum variance unbiased (MVU) estimator for these parameters is proposed. Moreover, maximum likelihood (ML) and least‐squares estimators for joint sampling clock offset and channel taps are presented. Best linear unbiased estimator is also introduced just for channel taps. The performances of the estimators are compared through simulation results with the proposed CRB. Our results show the better performances of MVU and ML estimators with more computational complexity compared with the others. Copyright © 2008 John Wiley & Sons, Ltd.
Neurodevelopmental sequelae of pediatric acute lymphoblastic leukemia and its treatment
Authors: Janzen Laura A. , Spiegler Brenda J. 
Published: October 2008

AbstractThis review will describe the neurocognitive outcomes associated with pediatric acute lymphoblastic leukemia (ALL) and its treatment. The literature is reviewed with the aim of addressing methodological issues, treatment factors, risks and moderators, special populations, relationship to neuroimaging findings, and directions for future research. It is concluded that neurocognitive outcomes for the majority of children with standard‐risk ALL treated according to current chemotherapy protocols is relatively good, but subgroups of children are more significantly compromised. As medical treatments advance and survival rates continue to improve, neurocognitive outcomes and other quality of life indicators will become increasingly important. Preventing or ameliorating treatment‐related neuropsychological sequelae represents the next major challenge in pediatric ALL. © 2008 Wiley‐Liss, Inc. Dev Disabil Res Rev 2008;14:185–195.
Expression patterns of the lysophospholipid receptor genes during mouse early development
Authors: Ohuchi Hideyo , Hamada Aska , Matsuda Hironao , Takagi Akira , Tanaka Masayuki , Aoki Junken , Arai Hiroyuki , Noji Sumihare 
Published: October 2008

AbstractLysophospholipids (LPs) such as lysophosphatidic acid (LPA) and sphingosine‐1‐phosphate (S1P) are known to mediate various biological responses, including cell proliferation, migration, and differentiation. To better understand the role of these lipids in mammalian early development, we applied whole‐mount in situ hybridization techniques to E8.5 to E12.5 mouse embryos. We determined the expression patterns of the following LP receptor genes, which belong to the G protein–coupled receptor (GPCR) family: EDG1 to EDG8 (S1P1 to S1P5 and LPA1 to LPA3), LPA4 (GPR23 /P2Y9), and LPA5 (GPR92). We found that the S1P/LPA receptor genes exhibit overlapping expression patterns in a variety of organ primordia, including the developing brain and cardiovascular system, presomitic mesoderm and somites, branchial arches, and limb buds. These results suggest that multiple receptor systems for LPA/S1P lysophospholipids may be functioning during organogenesis. Developmental Dynamics 237:3280–3294, 2008. © 2008 Wiley‐Liss, Inc.
Attitude control of planar end‐effector and estimation of contact point using parallel mechanism
Authors: Kubo Ryogo , Ohnishi Kouhei 
Published: October 2008

AbstractRecently, may robots have been utilized in unknown environment, for example, slave robots of teleoperation systems, walking robots and so on. They are called environment‐adaptive robots. It is very important for the environment‐adaptive robots to contact stably and to recognize unknown environment. In this paper, a compliance controller of attitude of a planar end‐effector is proposed to achieve stable contact with unknown environment. The robot utilized in this research has parallel mechanism as a whole, since the planar end‐effector is supported by three arms. With the assumption that only face‐to‐point contact exists between the end‐effector and unknown environment, an estimation method of the contact point without sensors is also proposed. Moreover, excessive stress is not exerted on the robots and the environments by means of the controller we propose, when the contact point is estimated. Our new approach of contact motion can be widely applied to the robots using parallel mechanism. The validity of the proposed method is shown by the numerical and experimental results. © 2008 Wiley Periodicals, Inc. Electron Comm Jpn, 91(3): 28– 36, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecj.10071
A method of independent component analysis based on radial basis function networks using noise estimation
Authors: Zhang Nuo , Lu Jianming , Yahagi Takashi 
Published: October 2008

AbstractThis paper proposes a robust independent component analysis (ICA) approach for noise reduction. Noise reduction is a difficult problem in ICA model. In general signal processing applications, there is more than one interference signal which may have unknown characteristics. In these situations, traditional linear ICA may lead to poor results. Hence, noise reduction is preferred to be performed with nonlinear adaptive filtering. In this paper, a radial basis function network (RBFN) is employed to transform the observed signals into output space in a nonlinear manner. The weights of RBFN are updated by utilizing a modified fixed‐point algorithm. The proposed method has not only the capacity of recovering the mixed signals, but also reducing noise with unknown characteristics from observed signals. The simulation results and analysis show that the proposed algorithm is suitable for practical unsupervised noise reduction problem. © 2008 Wiley Periodicals, Inc. Electron Comm Jpn, 91(3): 45–52, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecj.10073
B7‐H1 up‐regulation impairs myeloid DC and correlates with disease progression in chronic HIV‐1 infection
Authors: Wang Xicheng , Zhang Zheng , Zhang Shuye , Fu Junliang , Yao Jinxia , Jiao Yanmei , Wu Hao , Wang Fu‐Sheng 
Published: October 2008

AbstractImpaired myeloid dendritic cells (mDC) fail to elicit host antiviral immune responses, leading to disease progression in HIV‐1 infection. However, mechanisms underlying mDC suppression remain elusive. In this study, we found that the T‐cell co‐stimulatory molecule programmed death‐1 ligand‐1 (B7‐H1) is significantly up‐regulated on peripheral mDC in HIV‐1‐infected typical progressors and AIDS patients, but is maintained at a relatively low level in long‐term non‐progressors. Successful immune reconstitution after highly active antiretroviral therapy, indicated by full suppression of HIV‐1 replication and substantial increases of CD4 T‐cell counts, correlated with a decrease in B7‐H1 expression. Importantly, we also found that X4 HIV‐1 isolates directly induced B7‐H1 expression on mDC in vitro, while adding antiviral agents hampered this B7‐H1 up‐regulation. Blockade of B7‐H1 in vitro strongly enhanced mDC‐mediated allostimulatory capacity and IL‐12 production. In contrast, B7‐H1 ligation with soluble programmed death‐1 (PD‐1) reduced mDC maturation and IL‐12 production but increased mDC apoptosis and IL‐10 production. Thus, B7‐H1 up‐regulation may inhibit mDC‐mediated immune response, thereby facilitating viral persistence and disease progression in HIV‐1‐infected patients. This study provides new evidence that B7‐H1 inhibitory signaling may reversely mediate functional impairment of mDC in HIV‐1 infection, which further supports the notion that B7‐H1 blockade represents a novel therapeutic approach to this disease.
Jet impingement onto a tapered hole: Influence of jet velocity and hole wall velocities on heat transfer and skin friction
Authors: Shuja S. Z. , Yilbas B. S. , Khan S. M. A. 
Published: October 2008

AbstractJet impingement onto a hole with elevated wall temperature can be associated with the high‐temperature thermal drilling, where the gas jet is used for shielding the hole wall from the high‐temperature oxidation reactions as observed in the case of laser drilling. In laser processing, the molten flow from the hole wall occurs; and in the model study, the hole wall velocity resembling the molten flow should be accounted for. In the present study, gas jet impingement onto tapered hole with elevated temperature is considered and the heat transfer rates as well as skin friction at the hole wall surface are predicted. The velocity of molten flow from the hole wall determined from the previous study is adopted in the simulations and the effect of hole wall velocity on the heat transfer rates and skin friction is also examined. It is found that the Nusselt number and skin friction at the hole wall in the regions of hole inlet and exit attain high values. The influence of hole wall velocity on the Nusselt number and skin friction is found not to be very significant. Copyright © 2008 John Wiley & Sons, Ltd.
MAP fusion method for superresolution of images with locally varying pixel quality
Authors: Kim Kio , Neretti Nicola , Intrator Nathan 
Published: October 2008

AbstractSuperresolution is a procedure that produces a high‐resolution image from a set of low‐resolution images. Many of superresolution techniques are designed for optical cameras, which produce pixel values of well‐defined uncertainty, while there are still various imaging modalities for which the uncertainty of the images is difficult to control. To construct a superresolution image from low‐resolution images with varying uncertainty, one needs to keep track of the uncertainty values in addition to the pixel values. In this paper, we develop a probabilistic approach to superresolution to address the problem of varying uncertainty. As direct computation of the analytic solution for the superresolution problem is difficult, we suggest a novel algorithm for computing the approximate solution. As this algorithm is a noniterative method based on Kalman filter‐like recursion relations, there is a potential for real‐time implementation of the algorithm. To show the efficiency of our method, we apply this algorithm to a video sequence acquired by a forward looking sonar system. © 2008 Wiley Periodicals, Inc. Int J Imaging Syst Technol, 18, 242–250, 2008; Published online in Wiley InterScience (www.interscience.wiley.com).
Synthesis of new deuterium‐labelled lignanolactones
Authors: Leppälä Eija , Pohjoispää Monika , Koskimies Jorma , Wähälä Kristiina 
Published: October 2008

AbstractDeuteration of several lignanolactones, using 2H3PO4·BF3/2H2O as the deuteration reagent, is described, affording new stable isotopically pure polydeuterated lignans. All aromatic hydrogens are exchanged, including the less active ones. The order of 1H/2H exchange is studied by comparing calculated electrostatic potential values and experimental observations. Labile deuteriums are exchanged back to hydrogens with methanolic HCl to achieve stable isotopically pure compounds. Copyright © 2008 John Wiley & Sons, Ltd.
Cell wall fermentation kinetics are impacted more by lignin content and ferulate cross‐linking than by lignin composition
Authors: Grabber John H , Mertens David R , Kim Hoon , Funk Carola , Lu Fachuang , Ralph John 
Published: October 2008

AbstractBACKGROUND: We used a biomimetic model system to ascertain how reductions in ferulate–lignin cross‐linking and shifts in lignin composition influence ruminal cell wall fermentation. Primary walls from maize cell suspensions with normal or reduced feruloylation were artificially lignified with various monolignols previously identified in normal, mutant, and transgenic plants. Cell wall fermentability was determined from gas production during in vitro incubation with rumen microflora and by analysis of non‐fermented polysaccharides.RESULTS: Hemicellulose fermentation lag time increased by 37%, rate decreased by 37%, and the extent declined by 18% as cell wall lignin content increased from 0.5 to 124 mg g−1. Lignification increased lag time for cellulose fermentation by 12‐fold. Ferulate–lignin cross‐linking accounted for at least one‐half of the inhibitory effect of lignin on cell wall fermentation. Incorporating sinapyl p‐coumarate, a precursor of p‐coumaroylated grass lignin, increased the extent of hemicellulose fermentation by 5%. Polymerizing varying ratios of coniferyl and sinapyl alcohols or incorporating 5‐hydroxyconiferyl alcohol, coniferaldehyde, sinapyl acetate, or dihydroconiferyl alcohol into lignin did not alter the kinetics of cell wall fermentation.CONCLUSION: The results indicate that selection or engineering of plants for reduced lignification or ferulate–lignin cross‐linking will improve fiber fermentability more than current approaches for shifting lignin composition. Copyright © 2008 Society of Chemical Industry
Speciation of metal–EDTA complexes by flow injection analysis with electrospray ionization mass spectrometry and ion chromatography with inductively coupled plasma mass spectrometry
Authors: Chen ZuLiang , Sun Qian , Xi YunFei , Owens Gary 
Published: October 2008

AbstractFlow injection analysis (FIA) with ESI‐MS and ion chromatography (IC) with inductively coupled plasma‐MS (ICP‐MS) as the complementary technique have been explored for the determination of metal ions as their metal–EDTA complexes. ESI‐MS enabled the identification of metal–EDTA complexes such as [Mn(EDTA)]2–, [Co(EDTA)]2–, [Ni(EDTA)]2–, [Cu(EDTA)]2–, [Zn(EDTA)]2–, [Pb(EDTA)]2–, and [Fe(EDTA)]1– and their MS spectral showed that these metal–EDTA complexes were present in solution. Based on the ESI‐MS, ion chromatographic separation and ICP‐MS detection of these complexes are possible because IC‐ICP‐MS requires stable metal–EDTA complex during the chromatographic separation. The separation of these metal–EDTA complexes was achieved on an anion‐exchange column with a mobile phase containing 30 mM NH4 (HPO4)2 at pH 7.5 within 7 min with ICP‐MS providing element specific detection. The ICP‐MS LODs for the metal–EDTA were in the range of 0.1–0.5 μg/L with the exception of Fe (15 μg/L). The proposed method was a simple procedure for sample processing, using direct injection of sample without removal of sample matrix and was successfully applied to the determination of metal–EDTA complexes in real samples.