bluuebunny/crossref_metadata_2025_split huggingface dataset:
A physical approach for a simultaneous retrieval of sounding, surface, hydrometeor, and cryospheric parameters from SNPP/ATMS
Authors: Boukabara S.‐A. , Garrett K. , Grassotti C. , Iturbide‐Sanchez F. , Chen W. , Jiang Z. , Clough S. A. , Zhan X. , Liang P. , Liu Q. , Islam T. , Zubko V. , Mims A. 
Published: October 2013

AbstractWe present in this study the results obtained when applying a physical algorithm based on a variational methodology to data from the Advanced Technology Microwave Sounder (ATMS) onboard the Suomi National Polar‐Orbiting Partnership (SNPP) for a consistent retrieval of geophysical data in all weather conditions. The algorithm, which runs operationally at the U.S. National Oceanic and Atmospheric Administration, is applied routinely to a number of sounders from the Polar‐Orbiting Operational Environmental Satellites, the Defense Meteorological Satellite Program, and the European Meteorological Operational satellite constellations. The one‐dimension variational (1DVAR) methodology, which relies on a forward operator, the Community Radiative Transfer Model, allows for solving the inversion of the radiometric measurements into geophysical parameters which have a direct impact on the brightness temperatures. The parameters that are produced by this Microwave Integrated Retrieval System algorithm include the atmospheric temperature T(p), moisture Q(p), and vertically integrated total precipitable water; and the surface skin temperature and emissivity as well as the hydrometeor products of nonprecipitating cloud liquid water and rain‐ and ice‐water paths. In this algorithm, a simple postprocessing is applied to the 1DVAR‐generated emissivity to derive cryospheric products (snow water equivalent and sea‐ice concentration) when the data are measured over these surfaces. The postprocessing is also applied to the hydrometeors products to generate a surface rainfall rate. This comprehensive set of sounding, surface, hydrometeor, and cryospheric products generated from SNPP/ATMS is therefore radiometrically consistent, meaning that when input to the forward operator, it will allow the simulation of the actual brightness temperatures measurements within noise levels. The geophysical consistency between the products, also critical, is satisfied due to the physical approach adopted and the geophysical constraints introduced through the correlation matrix used in the variational system. The results shown in this paper confirm that the performances of all products are within the expected accuracy and precision figures and comparable to performances usually obtained with single‐parameter‐dedicated algorithms, with the added value that the inverted products are both radiometrically and geophysically consistent.
Past residence outside of the United States is associated with diet quality in adults currently residing in the United States
Authors: Frankenfeld Cara L. , Poudrier Jill , Waters Nigel , Gillevet Patrick M. 
Published: October 2013

ObjectiveTo evaluate healthy dietary factors in relation to prior residence outside the United States (US) among university‐affiliated individuals currently residing in the US.MethodsCurrent diet information was collected via a 4‐day food record and residential history data were collected by in‐person interview for 114 individuals.ResultsResidence outside of the US at any point during the interviewee's life was associated with higher diet quality (Healthy Eating Index‐2005: 50.0 vs. 46.8) and lower added sugar intake (25.8 vs. 34.9 g/d). Concordance of residence as a child (≤12 years of age) and within the prior 5 years was more strongly associated with higher HEI‐2005 score (52.7) than if childhood was outside of the US and recent within the US (47.1), compared with individuals who have only resided within the US (46.9). Results were similar when also accounting for self‐reported current residence as permanent residence. Current diet quality, food groups, and nutrient intakes differed depending on where in the world region individuals resided as a child. Restricting the analyzes to a subgroup of individuals of younger age and similar education attenuated associations.ConclusionsLower added sugar intake and higher overall diet quality were most consistently associated with residence outside of the US, and recent residence outside of the US may be more strongly associated than childhood residence. Some of these differences may be explained by demographic or socioeconomic factors. Future studies could evaluate explanatory factors for these observations, including detailed socioeconomic factors, exposure to diverse foods, and accessibility of processed foods. Am. J. Hum. Biol. 26:64–72, 2014. © 2013 Wiley Periodicals, Inc.
Method of Continuous Variations: Applications of Job Plots to the Study of Molecular Associations in Organometallic Chemistry
Authors: Renny Joseph S. , Tomasevich Laura L. , Tallmadge Evan H. , Collum David B. 
Published: October 2013

AbstractApplications of the method of continuous variations (MCV or the Method of Job) to problems of interest to organometallic chemists are described. MCV provides qualitative and quantitative insights into the stoichiometries underlying association of m molecules of A and n molecules of B to form AmBn . Applications to complex ensembles probe associations that form metal clusters and aggregates. Job plots in which reaction rates are monitored provide relative stoichiometries in rate‐limiting transition structures. In a specialized variant, ligand‐ or solvent‐dependent reaction rates are dissected into contributions in both the ground states and transition states, which affords insights into the full reaction coordinate from a single Job plot. Gaps in the literature are identified and critiqued.
AgOTf‐Catalyzed Electrophilic Cyclization of Triynols with NXS: Rapid Synthesis of Densely Trisubstituted Naphthalenes and Quinolines
Authors: Chen Zhiyuan , Jia Xuegong , Ye Changqing , Qiu Guanyinsheng , Wu Jie 
Published: October 2013

AbstractA silver triflate‐catalyzed electrophilic cyclization reaction of acyclic triynols with NXS (X=I, Br) under mild conditions is reported. Three reactive functional groups, such as a carbonyl group, an alkyne group, and a halogen, could be selectively installed at the C1, C2, and C3 positions to obtain the naphthalene and quinoline products, respectively. The obtained densely trisubstituted products could be further transformed into more complex aromatic products by manipulating the alkynyl moiety and the other two functional groups as synthons.
Absorption, metabolism and effect of compatibility on absorption of qishenyiqi dropping pill
Authors: Han Yan‐qi , Wang Jing , Cui Qing‐xin , Wang Li‐qiang , Cheng Bin‐feng , Zhao Hong‐zhi , Jiang Min , Bai Gang , Luo Guo‐an 
Published: October 2013

ABSTRACTQishenyiqi dropping pill (QSYQ), is a traditional Chinese medicine (TCM) prescription for treating heart diseases in China. Knowledge concerning the systemic identification of active compounds and metabolic components of QSYQ is generally lacking. Therefore, it is essential to develop a valid method for the analysis of active compounds of the combined prescription and determination of interactions among the herbs. The absorbable compounds and metabolites of QSYQ were profiled using computational chemistry prediction, an improved everted gut sac in vitro experiment, the Caco‐2 cell monolayer in vitro test, a rat in vivo experiment and ultra‐performance liquid chromatography/diode array detection/quadrupole‐time of flight mass spectrum (UPLC/DAD/Q‐TOF MS). In total, 42 prototype compounds were recognized as absorbable compounds, and eight metabolites were identified by UPLC/DAD/Q‐TOF MS. The absorption rates of phenolic acids and saponins were significantly improved and the absorption of isoflavone was inhibited after compatibility. The volatile oil component had an improved effect on the absorption of other compounds, while its own absorption was inhibited. In conclusion, the present study established a rapid and effective strategy for demonstrating the absorption and metabolism of QSYQ and revealing the compatible relationship among herbs. This investigation can provide a reference for the compatibility of prescriptions and the modernization of TCM. Copyright © 2013 John Wiley & Sons, Ltd.
Interrogating the Process and Meaning of Intergroup Contact: Contrasting Theoretical Approaches
Authors: Hammack Phillip L. , Pilecki Andrew , Merrilees Christine 
Published: October 2013

ABSTRACTTo address the dearth of research on the process and meaning participants make of intergroup contact in settings of intractable conflict, Israeli, Palestinian and US youth were randomly assigned to conditions of dialogue‐based contact rooted in distinct social psychological theories. Over a 2‐week period, participants completed diaries containing surveys of psychological experience and space for free reflection. US youth reported lower levels of engagement, social identity salience and positive mood relative to Israelis and Palestinians. Qualitative data revealed a pattern of detachment and dissatisfaction among US youth. Compared with participants in a recategorization condition, participants in a mutual differentiation condition of dialogue reported lower levels of self‐consistency and higher levels of intergroup differentiation over time, suggesting the effectiveness of this approach to initiate a process of self‐reflection and intergroup distinctiveness. Palestinian participants in the mutual differentiation condition reported higher levels of empowerment and positive mood throughout contact relative to all other participants, suggesting the effectiveness of this approach to challenge power asymmetries and its positivity for the low‐status group. Results are discussed in terms of innovative methodological approaches to study intergroup processes in contact settings. Copyright © 2013 John Wiley & Sons, Ltd.
Religious Affiliation and Attitudes Towards Gay Men: On the Mediating Role of Masculinity Threat
Authors: Reese Gerhard , Steffens Melanie C. , Jonas Kai J. 
Published: October 2013

ABSTRACTPrevious research suggests that people from some religious backgrounds hold more negative attitudes towards gay men than others do. The current research focuses on psychological variables as an alternative explanation to religious affiliation, testing whether masculinity beliefs regarding gay men and their perceived threat to one's masculinity can explain such between‐group differences in negative attitudes. With a sample of 155 male heterosexual university students (Muslims and Christians in Germany), we found that Muslims held more negative attitudes towards gay men than Christians did. Yet, this relation was partially mediated by beliefs about the masculinity of gay men and the experience of masculinity threat imposed by gay men, substantially reducing the effect of religious affiliation on antigay attitudes. In sum, similar psychological processes explained antigay attitudes of both Muslims and Christians. Copyright © 2013 John Wiley & Sons, Ltd.
Antioxidant status in patients with psoriasis
Authors: Houshang Nemati , Reza Khodarahmi , Masoud Sadeghi , Ali Ebrahimi , Mansour Rezaei , Vaisi‐Raygani Asad 
Published: October 2013

Psoriasis is a chronic inflammatory skin disease with an unknown aetiology that has been associated with abnormal plasma lipid metabolism and oxidative stress. There are controversial results in the previous studies investigating oxidant/antioxidant systems in psoriasis.The aim of this work was to evaluate the plasma levels of malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), total bilirubin (T. Bili), direct bilirubin (D. Bili), uric acid (UA), apolipoproteins (ApoA1 and ApoB), Lp(a) and activities of paraxonase 1 (PON1) in 100 patients with psoriasis and 100 controls, and to look for a correlation between these parameters in psoriasis.PON1, bilirubin and UA were measured spectrophotometrically, MDA by the high‐performance liquid chromatography method, apolipoproteins and Lp(a) by immunoprecipitation assays, and lipid and other biochemical parameters were determined by routine laboratory methods.In patients with psoriasis, there was a significant decrease in PON1, SOD and CAT activities (P < 0.05) and an increase in MDA levels (P < 0.01). Also, the levels of bilirubin (total and direct) and UA were decreased in patients with psoriasis but were not significant (P > 0.05).These results suggest that psoriasis was in a state of oxidative stress and that the protective effects of high‐density lipoprotein against atherosclerosis may be dependent on PON1 activity. Moreover, there is a negative correlation between antioxidant with Lp(a), apoB and MDA levels, suggesting that subjects with higher levels of Lp(a) and apoB and lower levels of antioxidant are more exposed to oxidative damage. These findings may explain in part the reported increase in cardiovascular mortality in psoriasis. Copyright © 2013 John Wiley & Sons, Ltd.
Thermodynamic and Structural Trends in Hexavalent Actinyl Cations: Complexation of Dipicolinic Acid with NpO22+ and PuO22+ in Comparison with UO22+
Authors: Xu Chao , Tian Guoxin , Teat Simon J. , Liu Guokui , Rao Linfeng 
Published: October 2013

AbstractThe complexation of NpO22+ and PuO22+ with dipicolinic acid (DPA) has been investigated in 0.1 M NaClO4 by spectrophotometry, microcalorimetry, and single crystal diffractometry. Formation of 1:1 and 1:2 (metal/ligand molar ratio) complexes of DPA with NpO22+ and PuO22+ were identified and the thermodynamic parameters were determined and compared with those of UO22+. All three hexavalent actinyl cations form strong 1:1 DPA complexes with slightly decreasing but comparable stability constants from UO22+ to PuO22+, whereas the stability constants of the 1:2 complexes (log β2) decrease substantially along the series (16.3 for UO2L22−, 15.17 for NpO2L22−, and 14.17 for PuO2L22− at 25 °C). The enthalpies of complexation for the 1:2 complexes become less exothermic from UO2L22− (−28.9 kJ mol−1), through NpO2L22− (−27.2 kJ mol−1), and to PuO2L22− (−22.7 kJ mol−1). The trends in the thermodynamic parameters are discussed in terms of the effective charge of the cations and the steric constraints in the structures of the complexes. In addition, the features of the absorption spectra, including the wavelength and intensity of the absorption bands, are related to the perturbation of the ligand field and the symmetry of the actinyl complexes.
Improved Synthesis of Cyclic Tertiary Allylic Alcohols by Asymmetric 1,2‐Addition of AlMe3 to Enones
Authors: Kolb Andreas , Zuo Wei , Siewert Jürgen , Harms Klaus , von Zezschwitz Paultheo 
Published: October 2013

AbstractThe development of an improved protocol for the enantioselective RhI/binap‐catalysed 1,2‐addition of AlMe3 to cyclic enones is reported. 31P NMR analysis of the reaction revealed that the catalyst in its resting state is a chloride‐bridged dimer. This insight led to the use of AgBF4 as an additive for in situ activation of the dimeric precatalyst. Thus, the catalyst loading can now be reduced to only 1 mol % with respect to rhodium. Various 5–7‐membered cyclic enones can be transformed into tertiary allylic alcohols with excellent levels of enantioselectivity and high yields. The obtained products are versatile synthetic building blocks, shown by a highly enantioselective formal total synthesis of the pheromone (−)‐frontalin as well as formation of a bicyclic lactone that has the core structure of the natural flavour component “wine lactone”.
ChemInform Abstract: Triple‐Layered Perovskite Niobates CaRNb3O10 (R: La, Sm, Eu, Gd, Dy, Er, Yb, or Y): New Self‐Activated Oxides.
Authors: Qin Lin , Wei Donglei , Huang Yanlin , Kim Sun Il , Yu Young Moon , Seo Hyo Jin 
Published: October 2013

AbstractThe title compounds are synthesized by solid state reactions of stoichiometric mixtures of CaCO3, Nb2O5, and Ln2O3 (Ln: La, Sm, Eu, Gd, Dy, Er, Yb, Y) at 1300—1350 °C for 20—48 h twice.
ChemInform Abstract: Tailoring Two Polymorphs of LiFePO4 by Efficient Microwave‐Assisted Synthesis: A Combined Experimental and Theoretical Study.
Authors: Zeng Guobo , Caputo Riccarda , Carriazo Daniel , Luo Li , Niederberger Markus 
Published: October 2013

AbstractBoth α‐ and β‐LiFePO4 are synthesized from solutions of LiCl, Fe(OAc)2, and H3PO4 in a mixture of benzyl alcohol and 2‐pyrrolidinone in the ratios 4:1 and 1:1, respectively (microwave irradiation, 195 °C, 3 min).
ChemInform Abstract: Na2FeP2O7: A Safe Cathode for Rechargeable Sodium‐Ion Batteries.
Authors: Barpanda Prabeer , Liu Guandong , Ling Chris D. , Tamaru Mao , Avdeev Maxim , Chung Sai‐Cheong , Yamada Yuki , Yamada Atsuo 
Published: October 2013

AbstractNaFeP2O7, the charged state of the title compound, shows high thermal stability up to at least 600 °C with no thermal decomposition and/or oxygen evolution.
ChemInform Abstract: KF‐Loaded Mesoporous Mg—Fe Bi‐Metal Oxides: High Performance Transesterification Catalysts for Biodiesel Production.
Authors: Tao Guiju , Hua Zile , Gao Zhe , Zhu Yan , Zhu Yan , Chen Yu , Shu Zhu , Zhang Lingxia , Shi Jianlin 
Published: October 2013

AbstractA high performance transesterification catalyst, KF/Mg2Fe is synthesized by loading/dispersing KF in mesoporous Mg—Fe bi‐metal oxides with a Mg/Fe molar ratio of 2.
ChemInform Abstract: Topochemical Cross‐Linking of the [Hf2N2] Layers with Sulfur in α‐HfNBr.
Authors: Zhang Shuai , Yoshikawa Mayumi , Inumaru Kei , Yamanaka Shoji 
Published: October 2013

AbstractReaction of Na2S with α‐HfNBr at 750 °C in a sealed glass tube leads to the formation of α‐Hf2N2S in which the α‐type [Hf2N2] layers are topochemically cross‐linked with sulfur.
ChemInform Abstract: Use of Tridentate TsDPEN/Pyridine Ligands in Ruthenium‐Catalyzed Asymmetric Reduction of Ketones.
Authors: Darwish Moftah O. , Wallace Alistair , Clarkson Guy J. , Wills Martin 
Published: October 2013

AbstractA series of enantiopure tridentate ligands based on 1,2‐diphenylethane‐1,2‐diamine, containing additional pyridine groups are prepared and applied in asymmetric transfer hydrogenation of ketones.
ChemInform Abstract: Friedel—Crafts Cyclization of Tertiary Alcohols Using Bismuth(III) Triflate.
Authors: Nammalwar Baskar , Bunce Richard A. 
Published: October 2013

AbstractThe Friedel—Crafts cyclizations of tertiary alcohols are efficiently catalyzed by Bi(OTf)3 to produce tetrahydronaphthalenes, chromanes, thiochromanes, tetrahydroquinolines, and tetrahydroisoquinolines.
ChemInform Abstract: Unique Reactivity of Pd(OAc)2 with Organic Azides: Expedient Synthesis of Nitriles and Imines.
Authors: Martinez‐Sarti Laura , Diez‐Gonzalez Silvia 
Published: October 2013

AbstractA cyanide free preparation of nitriles is achieved through Pd‐catalyzed reaction of azides with styrene as hydrogen acceptor.
ChemInform Abstract: One‐Pot 2‐O‐Alkylation of L‐Ascorbic Acid.
Authors: Thopate Shankar R. , Dengale Rohit A. , Kulkarni Mukund G. 
Published: October 2013

AbstractAn efficient reaction cascade for the regioselective 2‐O‐alkylation of L‐ascorbic acid is presented using selective 3‐O‐silylation, subsequent 2‐O‐alkylation and desilylation.
ChemInform Abstract: Catalyst‐ and Metal‐Free Rapid Functionalizations of Alkynes Using TsNBr2.
Authors: Chawla Ruchi , Singh Atul K. , Yadav Lal Dhar S. 
Published: October 2013

AbstractA rapid, catalyst‐free method for the conversion of terminal and internal alkynes to α,α‐dibromoalkanones is presented using TosNBr2 as the reagent in the presence of water.
ChemInform Abstract: A New and More Powerfully Activating Diamine for Practical and Scalable Enantioselective Aldehyde Crotylsilylation.
Authors: Suen Linda M. , Steigerwald Michael L. , Leighton James L. 
Published: October 2013

AbstractA convenient one‐pot protocol employing an optically active diaminophenol activator ligand for the diastereo‐ and enantioselective allylation and crotylation of aldehydes is developed.
ChemInform Abstract: Asymmetric N‐Heterocyclic Carbene Catalyzed Addition of Enals to Nitroalkenes: Controlling Stereochemistry via the Homoenolate Reactivity Pathway to Access δ‐Lactams.
Authors: White Nicholas A. , DiRocco Daniel A. , Rovis Tomislav 
Published: October 2013

AbstractA wide range of different substituted syn‐δ‐nitroesters are synthesized by using a novel NHC ligand.
ChemInform Abstract: Organocatalytic Asymmetric Annulation of 1,3‐Bis(alkoxycarbonyl)buta‐1,3‐dienes and Aldehydes.
Authors: Pezzati Bernardo , Chellat Mathieu F. , Murphy John J. , Besnard Celine , Reginato Gianna , Stephens John C. , Alexakis Alexandre 
Published: October 2013

AbstractThe title reaction proceeds in the presence of an optically active diphenylprolinol derived catalyst to afford cyclohexadienes with excellent diastereo‐ and enantioselectivities.
ChemInform Abstract: Mechanism of Formation of Aromatic Vinylphosphonium Salts via the Peterson Olefination.
Authors: Lukaszewicz Ewa , Kupinska Anna , Majewski Piotr 
Published: October 2013

AbstractPara substituents in aromatic aldehydes determine the E/Z‐selectivity in the Peterson olefination due to their electron‐donating or ‐withdrawing character.
ChemInform Abstract: Catalytic Activation of Carbohydrates as Formaldehyde Equivalents for Stetter Reaction with Enones.
Authors: Zhang Junmin , Xing Chong , Tiwari Bhoopendra , Chi Yonggui Robin 
Published: October 2013

AbstractThe activation includes carbene‐catalyzed C—C bond cleavage of carbohydrates to generate the acyl ion intermediate.
ChemInform Abstract: A Closer Look at the Bromine—Lithium Exchange with tert‐Butyllithium in an Aryl Sulfonamide Synthesis.
Authors: Waldmann Christopher , Schober Otmar , Haufe Guenter , Kopka Klaus 
Published: October 2013

AbstractVarious heteroaryl sulfonamides are prepared by a one‐pot four‐step procedure including bromine‐lithium exchange of heteroaryl bromides.
ChemInform Abstract: Transformation of Benzo[b]thiophene‐2,3‐diones to Functionalized Diaryldisulfides
Authors: Pardasani Ramchand T. , Singh Saurabh , George Johnson , Joshi Rahul , Sundar T. Vaidyanathan 
Published: October 2013

Abstractvia nucleophilic ring opening with Et2NH
ChemInform Abstract: Entirely Green Protocol for the Synthesis of β‐Aminoketones Using Saccharose as a Homogenous Catalyst.
Authors: Mousavi Mir Rasul , Hazeri Nourallah , Maghsoodlou Malek Taher , Salahi Sajjad , Habibi‐Khorassani Sayyed Mostafa 
Published: October 2013

AbstractSaccharose is found to be an efficient and homogenous catalyst for the one‐pot, three‐component Mannich reaction of aromatic aldehydes (II), anilines (III), and acetophenone (I) at room temperature.
ChemInform Abstract: Direct Nucleophilic Substitution of Free Allylic Alcohols in Water Catalyzed by FeCl3·6H2O: Which Is the Real Catalyst?
Authors: Trillo Paz , Baeza Alejandro , Najera Carmen 
Published: October 2013

AbstractThe reaction is environmentally friendly and is applied to various N‐, C‐ and O‐nucleophiles.
ChemInform Abstract: One‐Pot, Four‐Component Synthesis of Novel Spiro[indeno[2,1‐b]quinoxaline‐11,4′‐pyran]‐2′‐amines.
Authors: Hasaninejad Alireza , Golzar Nooshin , Zare Abdolkarim 
Published: October 2013

AbstractAll products are purified by crystallization.
ChemInform Abstract: Design, Synthesis and Structure—Activity Relationships of Zwitterionic Spirocyclic Compounds as Potent CCR1 Antagonists.
Authors: Hossain Nafizal , Ivanova Svetlana , Timen Aasa Sjoeholm , Bergare Jonas , Mussie Tesfaledet , Bergstroem Lena 
Published: October 2013

AbstractA series of spirocyclic compounds containing chiral pyrrolidinyl‐3‐carboxylate groups are synthesized and their chemotaxis is evaluated in vitro against CCR1.
ChemInform Abstract: Synthesis of Substituted 3‐Hydroxy‐2‐furanone Derivatives via an Unusual Enolate Wittig Rearrangement/Alkylative Cyclization Sequence.
Authors: Everett Renata K. , Wolfe John P. 
Published: October 2013

AbstractO‐(Alkynylmethyl)glycolates (I) react with dialkylboron triflates in the presence of Huenig′s base to give highly substituted 3‐hydroxy‐2‐furanone derivatives.