bluuebunny/crossref_metadata_2025 huggingface dataset:
Semiotics in foreign language teaching. Book illustrations as intersemiotic translation in English language course books
Authors: Zaﬁri Makrina , Kourdis Evangelos
Published: May 2012

This article discusses a speciﬁ c aspect of English language teaching as a foreign language in Greece. This subject is further aided by Semiotics and Translation through the synergy of semiotic systems incorporating the views of Charles S. Peirce. More speciﬁ cally, after a brief survey of what existed in the past, concerning the teaching of English as a foreign language in Greek primary schools, readers will be introduced to the English language teaching curriculum for sixth grade primary school students which mentions non-verbal forms of communication, as well as to the role of course book illustrations. Both approaches focus upon the intersemiotic value of illustrations in connection with the texts that accompany them. This study proves that the sixth grade English course book includes a broad variety of visual systems which constitute the symbols and icons of the book according to Charles S. Peirce’s categorization.
Condición postmoderna y esbozo de una nueva pedagogía emancipatoria. Un pensamiento diferente para el siglo XXI
Authors: Bernal Guerrero Antonio
Published: May 2012

Postmodernism represents a social condition in its own right and symbolizes a new era, distinct from that known as modernity. The postmodern condition proclaims pluralism, difference, heterogeneous perspectives, the specificity of individual cases, and the little stories ignored by modernity. The postmodern critique has exposed the false certainties of modernity, possibly making us wiser but lacking alternatives. The processes of modernization and post-modernization have made it possible to turn in
on ourselves, critically placing us between our needs and our rights. In this context, a new social vision has emerged around the critical importance of the phenomena of subjectivity and the construction of the subject. Contemporary critical pedagogy, which is especially concerned with emancipation, was founded on the old ideals of the Enlightenment and developed with modern narrative categories. After the postmodern critique and the recognition that social practices have changed profoundly, we need to conceive of emancipatory pedagogy in new ways in order to allow the subject as much protagonism as possible. This implies a profound transformation of education, which can no longer be considered merely in terms of the economic and productive development of society.
Aproximaciones a los conflictos sociales y propuestas sostenibles de urbanismo y ordenación del territorio en México
Authors: Sánchez González Diego
Published: May 2012

The objective of the study is to describe the effects of the lack of order in the process of urban growth in Mexico, and to review the various theoretical and methodological foundations of urban and regional planning. The methodology is based on an extensive literature review, which has allowed us to address the current debate on trends in urban and regional policies. We find that the problems arising from lack of planning in cities and territories have implications for economic underdevelopment and social vulnerability in Mexico. The article also suggests the need to rethink and search for a kind of urban and regional planning that is responsive to local development needs and the various communities that share a space.
Preferences, Market Structure, and Welfare Evaluations in the Argentinean FFP Industry: A Case in Buenos Aires Province
Authors: González Julia , Lacaze M. Victoria
Published: May 2012

This study analyzes the demand for frozen fried potatoes in an important city of Argentina, Mar del Plata, and the effect of changes in market structure on consumer welfare. We found that high‐income individuals are more concerned about health and nutrition, and that younger and lower‐income consumers are more price‐sensitive. The results suggest that consumer surplus would decrease with a merger between the two smaller firms in the market, and would increase if the market turned into a single‐product firms industry. The influence of these counterfactual changes would be greater for wealthier and older individuals. This article contributes to the analysis of a food market that is rapidly growing in developing countries and is starting to play a more relevant role in consumers’ diet. [EconLit classifications: L11, D12] © 2012 Wiley Periodicals, Inc.
Effect of compatibilizer and fillers on the properties of injection molded lignin‐based hybrid green composites
Authors: Sahoo Saswata , Misra Manjusri , Mohanty Amar K.
Published: May 2012

Composites were prepared from poly(butylene succinate) (PBS), lignin, and switchgrass using extrusion followed by injection molding techniques. The effects of the fillers (lignin and switchgrass) and polymeric methylene diphenyl diisocyanate (PMDI) compatibilizer on the physicomechanical and thermal properties of the composites were investigated. Use of hybrid filler (1 : 1 lignin : switchgrass) resulted in slight improvement in the flexural strength of the composites. Incorporation of 1% PMDI into the hybrid filler reinforced composites significantly enhanced properties compared with the neat PBS which accounts for improvements in the flexural strength, flexural modulus, and heat deflection temperature (HDT) by nearly 165%, 375%, and by 24°C respectively. Lignin exhibited some effects on the thermal properties of composites. However, switchgrass demonstrated a minor effect on the thermal behavior of the composites compared with the lignin. An improved interface was observed from the scanning electron microscopy (SEM) of the compatibilized hybrid composites. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Benzodioxoles as alternative coinitiators for radical polymerization in a model‐dental adhesive resin
Authors: Lima Giana da Silveira , Ogliari Fabrício Aulo , Souza e Silva Manuela Gonçalves , Münchow Eliseu Aldrighi , Petzhold Cesar Liberato , Piva Evandro
Published: May 2012

This study evaluated the effectiveness of benzodioxole derivatives as coinitiators of radical polymerization in a model‐dental adhesive resin. To compose the adhesive resin, a monomer mixture based on 50 wt % of Bis‐GMA, 25 wt % of TEGDMA, and 25 wt % of HEMA was used. Camphorquinone (CQ) 1 mol % was used as a photoinitiator to initiate polymerization. 1,3‐Benzodioxole (BDO) and piperonyl alcohol (PA) were used as coinitiators at 0.25, 0.5, 1, 2, 4, 8, and 16 mol % level. In addition, tertiary amine, ethyl 4‐dimethylamino benzoate (EDAB) was used as coinitiator in the control group. Some physical, chemical, and mechanical properties of the polymer formed in the experimental adhesives were evaluated using the kinetics of polymerization, sorption and solubility, flexural strength, and elastic modulus tests. The results indicated that BDO and PA were effective coinitiators in the photoinitiator system based on CQ. Comparisons between the benzodioxoles derivative coinitiators and EDAB showed similar performance in the kinetics of polymerization and flexural strength. For water sorption and solubility evaluation, BDO and PA demonstrated significantly more sorption of water and less solubility than the EDAB control group. The findings suggest that BDO and PA were feasible alternatives to conventional amine as coinitiator. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Electrical and microwave absorbing properties of polypyrrole synthesized by optimum strategy
Authors: Hao Bin , Li Liangchao , Wang Yuping , Qian Haisheng , Tong Guoxiu , Chen Haifeng , Chen Keyu
Published: May 2012

The polypyrrole (PPy) was prepared by in situ solution polymerization. The structure and morphology were characterized by X‐ray diffractometry, scanning electron microscope (SEM), and transmission electron microscope, respectively. The electrical and dielectric properties of the PPy were measured by four‐point technique and impedance/materials analyzer. The results revealed that reaction time, reaction temperature, the types of doping agent, and the molar ratio of initiator to pyrrole monomer (nAPs/nPy) had an important effect on electrical and dielectric properties of the PPy. It showed that the PPy doped with phosphoric acid and with nAPs/nPy = 1 at 10°C for 12 h had better performance of electrical conductivity and dielectric loss. The PPy sample with 2 mm thickness had a minimum reflection loss value of −19.68 dB at approximately 16 GHz and an available bandwidth of 6.2 GHz in the range of 8–18 GHz. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Synthesis of alkyne‐terminated xanthate RAFT agents and their uses for the controlled radical polymerization of N‐vinylpyrrolidone and the synthesis of its block copolymer using click chemistry
Authors: Patel Vijay Kumar , Vishwakarma Niraj Kumar , Mishra Avnish Kumar , Biswas Chandra Sekhar , Maiti Pralay , Ray Biswajit
Published: May 2012

Two new alkyne‐terminated xanthate reversible addition‐fragmentation chain‐transfer (RAFT) agents: (S)‐2‐(Propynyl propionate)‐(O‐ethyl xanthate) (X3) and (S)‐2‐(Propynyl isobutyrate)‐(O‐ethyl xanthate) (X4) were synthesized and characterized and used for the controlled radical polymerization of N‐vinylpyrrolidone (NVP). X3 showed better chain transfer ability in the polymerization at 60°C. Molecular weight of the resulted polymer increased linearly with the increase in monomer loading. Kinetics study with X3 showed the pseudo‐first order kinetics up to 67% monomer conversion. Molecular weight (Mn) of the resulting polymer increased linearly with the increase in the monomer conversion up to around 67%. With the increase in the monomer conversion, polydispersity of the corresponding poly(NVP)s initially decreased from 1.34 to 1.32 and then increased gradually to 1.58. Chain‐end analysis of the resulting polymer by 1H‐NMR and FTIR showed clearly that polymerization started with radical forming out of xanthate RAFT agent. Living nature of the polymerization was also confirmed from the successful homo‐chain extension experiment and the hetero‐chain extension experiment involving synthesis of poly(NVP)‐b‐polystyrene amphiphilic diblock copolymer. Formed alkyne‐terminated poly(NVP) also allowed easy conjugation to azide‐terminated polystyrene by click chemistry to prepare well‐defined poly(NVP)‐b‐polystyrene block copolymers. Resulting polymers were characterized by GPC, 1H‐NMR, FTIR, and thermal study. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Reception learning and self‐discovery learning in histology: Students' perceptions and their implications for assessing the effectiveness of different learning modalities
Authors: Campos‐Sánchez Antonio , Martín‐Piedra Miguel‐Ángel , Carriel Víctor , González‐Andrades Miguel , Garzón Ingrid , Sánchez‐Quevedo María‐Carmen , Alaminos Miguel
Published: May 2012

Two questionnaires were used to investigate students' perceptions of their motivation to opt for reception learning (RL) or self‐discovery learning (SDL) in histology and their choices of complementary learning strategies (CLS). The results demonstrated that the motivation to attend RL sessions was higher than the motivation to attend SDL to gain new knowledge (P < 0.01) and to apply this acquired knowledge to diagnosis (P < 0.01), therapy (P < 0.01), and research (P < 0.05). Students also showed a stronger preference for RL based on motivations related to leadership (P < 0.01) and competition (P < 0.01), although the rates were very low in both cases (≤ 1.9 ± 1.1). Statistically significant differences were found between male and female students for leadership (higher in males), responsibility (higher in females), and acquiring new knowledge (higher in females only in RL). This study's findings for students' preferred CLS strategies suggested a greater need for additional complementary resources after RL than after SDL (P < 0.01). In conclusion, RL was associated with a greater need for complementary training resources such as textbooks, atlases, the internet, audiovisual media, and tutorials, whereas SDL was associated with a greater need to orient teaching and training toward medical practice. These results suggest the need to reorient both types of learning processes to enhance their effectiveness in teaching histology, especially in the case of SDL, which should place more emphasis on clinically oriented knowledge. Anat Sci Educ. © 2012 American Association of Anatomists.
Reduction of mental distress in the dissection course by introducing the body donor experience through anatomical demonstrations of organ systems
Authors: Böckers Anja , Baader Christoph , Fassnacht Ulrich Kai , Öchsner Wolfgang , Böckers Tobias Maria
Published: May 2012

The practice of dissection teaches students not only the foundations of anatomical knowledge but also encourages the development of professional competencies. Yet, the dissection of cadavers in the gross anatomy course can be a stress factor for medical students. There are a minor proportion of students who demonstrate strong emotional reactions in anticipation of being confronted with a cadaver. Therefore, in 2008, the authors implemented a voluntary course entitled, “Anatomical demonstrations of organ systems” (AD‐OS) in advance of the dissection course to ease this psychological burden. The question of whether attendees of AD‐OS showed less mental distress at the start of the dissection course compared with those that had not or only infrequently visited AD‐OS was addressed. AD‐OS attendees assessed their expected mental distress using a five‐point Likert scale before starting the dissection course and a second time at the end of their first day, after they had been confronted with a cadaver. AD‐OS was evaluated as excellent and the majority of students participated actively during teaching sessions. Overall, female students showed higher levels of mental distress. AD‐OS attendees assessed themselves as being less burdened by mental distress than members of the control group. Longitudinal analysis revealed that students who visited AD‐OS showed a marked decrease of their mental distress level, comparing prospective and retrospective ratings. This was significantly (P < 0.001; Z = −6.061) different from nonattendees or those who visited AD‐OS only infrequently. AD‐OS satisfied its intended teaching goals and proved that a step‐by‐step introduction of dissection through anatomical demonstrations helped to reduce the mental distress of students. Future studies are planned to measure mental distress with objective instruments. Anat Sci Educ © 2012 American Association of Anatomists.
Contextualizing context for synthetic biology – identifying causes of failure of synthetic biological systems
Authors: Cardinale Stefano , Arkin Adam Paul
Published: May 2012

Despite the efforts that bioengineers have exerted in designing and constructing biological processes that function according to a predetermined set of rules, their operation remains fundamentally circumstantial. The contextual situation in which molecules and single‐celled or multi‐cellular organisms find themselves shapes the way they interact, respond to the environment and process external information. Since the birth of the field, synthetic biologists have had to grapple with contextual issues, particularly when the molecular and genetic devices inexplicably fail to function as designed when tested in vivo. In this review, we set out to identify and classify the sources of the unexpected divergences between design and actual function of synthetic systems and analyze possible methodologies aimed at controlling, if not preventing, unwanted contextual issues.
Rugulactone and its Analogues Exert Antibacterial Effects through Multiple Mechanisms Including Inhibition of Thiamine Biosynthesis
Authors: Nodwell Matthew B. , Menz Helge , Kirsch Stefan F. , Sieber Stephan A.
Published: May 2012

Rugulactone is a dihydro‐α‐pyrone isolated from the plant Cryptocarya rugulosa in 2009. It has been reported to display IkB kinase (IKK) inhibitory activity, as well as antibiotic activity in several strains of pathogenic bacteria. However, its biological targets and mode of action in bacteria have not yet been explored. Here we present enantioselective syntheses of rugulactone and of some corresponding activity‐based protein profiling (ABPP) probes. We found that the ABPP probes in this study are more potent than rugulactone against Staphyloccocus aureus NCTC 8325, S. aureus Mu50, Listeria welshimeri SLCC 5334 and Listeria monocytogenes EGD‐e, and that molecules of this class probably exert their antibacterial effect through a combination of targets. These targets include covalent inhibition of 4‐amino‐5‐hydroxymethyl‐2‐methylpyrimidine phosphate (HMPP) kinase (ThiD), which is an essential component of the thiamine biosynthesis pathway in bacteria. This represents the first example of a small‐molecule inhibitor of ThiD.
ChemInform Abstract: Ammonium and Caesium Carbonate Peroxosolvates: Supramolecular Networks Formed by Hydrogen Bonds.
Authors: Medvedev Alexander G. , Mikhaylov Alexey A. , Churakov Andrei V. , Prikhodchenko Petr V. , Lev Ovadia
Published: May 2012

Colorless single crystals of (NH4)2CO3·H2O2 (I) and Cs2CO3·3H2O2 (II) are prepared by cooling saturated solutions of (NH4)(COONH2) or Cs2CO3 in 98% H2O2 from room temperature to ‐18 °C.
ChemInform Abstract: The Incommensurately Modulated Structures of the Perovskites NaCeMnWO6 and NaPrMnWO6.
Authors: Garcia‐Martin Susana , King Graham , Nenert Gwilherm , Ritter C. , Woodward Patrick M.
Published: May 2012

The structures of the title perovskites are investigated by TEM, SAED, neutron, and synchrotron X‐ray powder diffraction.
ChemInform Abstract: Zero Thermal Expansion Fluid and Oriented Film Based on a Bistable Metal‐Cyanide Polymer.
Authors: Tokoro Hiroko , Nakagawa Kosuke , Imoto Kenta , Hakoe Fumiyoshi , Ohkoshi Shin‐ichi
Published: May 2012

Plate‐shaped microcrystals of Rb0.97Mn [Fe(CN)6]0.99·0.3H2O are synthesized by mixing an aqueous solution containing polyethylene glycol monolaurate, MnCl2, and RbCl with an aqueous solution of polyethylene glycol monolaurate, K3[Fe(CN)6], and RbCl.
ChemInform Abstract: Low‐Temperature Sintering and Microwave Dielectric Properties of Li3MO4 (M: Ta, Sb) Ceramics.
Authors: Pang Li‐Xia , Liu Huan , Zhou Di , Yang Jia‐Xing , Li Dang‐Juan , Liu Wei‐Guo
Published: May 2012

The title ceramics are prepared by solid state reaction from mixtures of Li2CO3 and Ta2O5 or Sb2O3.
ChemInform Abstract: Critical Systematic Evaluation and Thermodynamic Optimization of the Mn—RE System: RE: La, Ce, Pr, Nd and Sm.
Authors: Kim Junghwan , Jung In‐Ho
Published: May 2012

Critical evaluation and optimization of all available phase diagram and thermodynamic data for the title systems is conducted to obtain reliable thermodynamic functions of all the phases in the system.
ChemInform Abstract: Multivariate Method‐Assisted ab initio Study of Olivine‐Type LiMXO4 (Main Group M2+—X5+ and M3+—X4+) Compositions as Potential Solid Electrolytes.
Authors: Jalem Randy , Aoyama Takahiro , Nakayama Masanobu , Nogami Masayuki
Published: May 2012

A combination of ab initio calculations and multivariate analysis is used to find potential solid electrolyte materials with low Li‐ion hopping energies among 66 olivine‐type oxides with an ordered LiMXO4 structure.
ChemInform Abstract: Ozone‐Based Atomic Layer Deposition of Crystalline V2O5 Films for High Performance Electrochemical Energy Storage.
Authors: Chen Xinyi , Pomerantseva Ekaterina , Banerjee Parag , Gregorczyk Keith , Ghodssi Reza , Rubloff Gary
Published: May 2012

Single‐phase, crystalline V2O5 thin films are prepared on various substrates (Si, Au‐coated stainless steel, anodic aluminium oxide) by atomic layer deposition from VO(OPr)3 and O3 (170—185 °C).
ChemInform Abstract: Halogenated Xenon Cyanides ClXeCN, ClXeNC, and BrXeCN.
Authors: Arppe Teemu , Khriachtchev Leonid , Lignell Antti , Domanskaya Alexandra V. , Raesaenen Markku
Published: May 2012

The title compounds are prepared by 193 nm photolysis and thermal annealing of ClCN and BrCN in a xenon matrix.
ChemInform Abstract: Two Novel Acentric Borate Fluorides: M3B6O11F2 (M: Sr, Ba).
Authors: McMillen Colin D. , Stritzinger Jared T. , Kolis Joseph W.
Published: May 2012

Crystals of the new title compounds are synthesized by solid state reactions of MF2 (M: Sr, Ba), H3BO3, and NH4F (Pt crucible, 800 °C, 24 h) followed by hydrothermal reaction of the obtained powders with aqueous solutions of KF (for M: Sr) or KHF2 (for M: Ba) at 540 °C (welded silver ampules, 7 d).
ChemInform Abstract: Hydrothermal Synthesis and Crystal Structure of Two New Hydrated Alkaline Earth Metal Borates Sr3B6O11(OH)2 and Ba3B6O11(OH)2.
Authors: Heyward Carla , McMillen Colin , Kolis Joseph
Published: May 2012

Sr3B6O11(OH)2 (I) is synthesized by solid state reaction of LiOH, B2O3, Sr(OH)2, and KOH (Pt crucible, 900 °C in air, 16 h) followed by reaction of the obtained product with aqueous SrCl2 solution (autoclave, 560 °C, 6 d, 90% yield).
ChemInform Abstract: Extreme Differences in Oxidation States: Synthesis and Structural Analysis of the Germanide Oxometallates A10[Ge9]2[WO4] as well as A10+x[Ge9]2 [W1‐xNbxO4] with A = K and Rb Containing [Ge9]4‐ Polyanions.
Authors: Hlukhyy Viktor , Faessler Thomas F. , Ponou Simeon , Lidin Sven , Ivleva Natalia P. , Niessner Reinhard
Published: May 2012

Semitransparent dark‐red or ruby‐red single crystals of K10.35Ge18W0.65Nb0.35 O4, Rb10.35Ge18W0.65Nb0.35 O4, K10Ge18WO4, and Rb10Ge18WO4 are synthesized by solid state reactions using K, Rb, Ge, W, WO3, K2WO4, Rb2WO4, GeO2 and HgO as starting materials (Nb crucible, 800 °C, 120 h).
ChemInform Abstract: Syntheses and Characterization of Nine Quaternary Uranium Chalcogenides Among the Compounds A2M3UQ6 (A: K, Rb, Cs; M: Pd, Pt; Q: S, Se).
Authors: Oh George N. , Choi Eun Sang , Ibers James A.
Published: May 2012

Cs2Pd3USe6 (50% yield), Cs2Pd3US6 (40% yield), Cs2Pt3USe6 (20% yield), Cs2Pt3US6 (20% yield), Rb2Pd3USe6 (50% yield), Rb2Pd3US6 (60% yield), Rb2Pt3USe6 (20% yield), Rb2Pt3US6 (20% yield), and K2Pd3US6 (40% yield) are synthesized by solid state reaction of U, Pd or Pt, and S or Se in ACl (A: K, Rb, Cs) or A2Qx (Q: S, Se) fluxes (1173—1223 K, 24—192 h).
ChemInform Abstract: Novel Triarylimidazole Redox Catalysts: Synthesis, Electrochemical Properties, and Applicability to Electrooxidative C—H Activation.
Authors: Zeng Cheng‐chu , Zhang Ni‐tao , Lam Chiu Marco , Little R. Daniel
Published: May 2012

TAI is the most effective mediator to achieve the oxidation of benzyl alcohols and ethers in the presence of 2,6‐lutidine.
ChemInform Abstract: Rhodium‐Catalyzed and Zinc(II) Triflate Promoted Asymmetric Hydrogenation of Tetrasubstituted α,β‐Unsaturated Ketones.
Authors: Calvin Joel R. , Frederick Michael O. , Laird Dana L. T. , Remacle Jacob R. , May Scott A.
Published: May 2012

A key feature is the use of catalytic zinc triflate, which significantly improves turnover frequency and suppresses epimerization in the α‐position of the products.
ChemInform Abstract: Stable Axial Chirality in Metal Complexes Bearing 4,4′‐Substituted BIPHEPs: Application to Catalytic Asymmetric Carbon—Carbon Bond‐Forming Reactions.
Authors: Aikawa Kohsuke , Miyazaki Yoshitaka , Mikami Koichi
Published: May 2012

The investigations reveal that not only electronic but also steric effects of 4,4′‐disubstituted BIPHEP derivatives (I) and their metal complexes influence the stability of the single bond rotation of biphenyl ring.
ChemInform Abstract: Acid—Base‐Catalyzed Condensation Reaction in Water: Isoxazolines and Isoxazoles from Nitroacetates and Dipolarophiles.
Authors: Trogu Elena , Vinattieri Claudia , De Sarlo Francesco , Machetti Fabrizio
Published: May 2012

Alkenes or alkynes bearing a wide variety of functional groups including carboxylic acids and ammonium salts are subjected to optimized conditions.
ChemInform Abstract: Regio‐Selective Reduction of the C—C Double Bonds in α,β‐Unsaturated Acyl 4‐Substituted Oxazolidin‐2‐ones and Oxazolidine‐2‐thiones.
Authors: Li Shao‐Gang , Jin Jian‐Wei , Wu Yikang
Published: May 2012

An effective protocol for the regio‐ and chemoselective reduction of internal double bonds in α,β‐unsaturated 4‐substituted oxazolidine derivatives is developed.
ChemInform Abstract: Regio‐ and Stereoselective Hydroxybromination and Dibromination of Olefins Using Ammonium Bromide and Oxone®.
Authors: Macharla Arun Kumar , Nappunni Rohitha Chozhiyath , Nama Narender
Published: May 2012

The reagent mixture is efficiently used to convert a variety of non‐activated olefins to bromohydrins in aqueous MeCN.
ChemInform Abstract: Microwave‐Enhanced Triton B Catalyzed Suzuki Coupling Reaction.
Authors: Meshram H. M. , Prasad B. R. V. , Kumar D. A. , Reddy B. Ch. K.
Published: May 2012

An efficient method for the Suzuki coupling of aryl and heteroaryl halides with aryl and heteroaryl boronic acids is presented.
ChemInform Abstract: Palladium‐Catalyzed Hydroacyloxylation of Ynamides.
Authors: Smith Donna L. , Goundry William R. F. , Lam Hon Wai
Published: May 2012

The first Pd‐catalyzed hydroacyloxylation of ynamides (I), (IV), (VII) and (IX) is reported.
ChemInform Abstract: One‐Pot Synthesis of Enantiomerically Pure 1,2‐Diols: Asymmetric Reduction of Aromatic α‐Oxoaldehydes Catalyzed by Candida parapsilosis ATCC 7330.
Authors: Mahajabeen Pula , Chadha Anju
Published: May 2012

The position of the substituents on the aromatic ring of the oxoaldehydes has a large influence on the enantioselectivity and the configuration of the diols.
ChemInform Abstract: Facile Preparation and Reactivity of Magnetic Nanoparticle‐Supported Hypervalent Iodine Reagent: A Convenient Recyclable Reagent for Oxidation.
Authors: Zhu Chenjie , Wei Yunyang
Published: May 2012

The novel reagent can be recycled and reused for eight times without significant loss of activity.
ChemInform Abstract: Direct Oxidative Conversion of 3‐Aryl Propionaldehydes to 3‐Aryl Acroleins Promoted by SOMO Catalysis.
Authors: Zhu Jin , Yu Shunting , Lu Wenchao , Deng Jing , Li Jian , Wang Wei
Published: May 2012

The transformation is efficiently achieved by an amine‐catalyzed CAN‐mediated single electron transfer oxidation process.
ChemInform Abstract: A Straightforward Synthesis of N‐Monosubstituted α‐Keto Amides via Aerobic Benzylic Oxidation of Amides.
Authors: Shao Jun , Huang Xiaomei , Wang Siyuan , Liu Bingxin , Xu Bin
Published: May 2012

An efficient, very simple, and convenient route to the title compounds (II) and (IV) starts from the easily available aryl‐ and heteroarylacetamides (I) and (III).
ChemInform Abstract: Oxidation of Acyclic Alkenes and Allyl and Benzyl Ethers with DIB/t‐BuOOH/Mg(OAc)2.
Authors: Sastraruji Thanapat , Pyne Stephen G. , Ung Alison T.
Published: May 2012

The ethers (VIII) and (XII) can be chemoselectively oxidized in the presence of a terminal alkene.
ChemInform Abstract: Thiophilic Nucleophilic Trifluoromethylation of α‐Substituted Dithioesters. Access to S‐Trifluoromethyl Ketene Dithioacetals and Their Reactivity with Electrophilic Species.
Authors: Gouault‐Bironneau Sonia , Timoshenko Vadim M. , Grellepois Fabienne , Portella Charles
Published: May 2012

Nucleophilic fluoroalkylation of dithioesters bearing a non‐enolizable α‐carbamoyloxy group (I) provides access towards S‐perfluoroalkyl ketene dithioacetals in good yields as E/Z‐mixtures.
ChemInform Abstract: Biodeposited Pd/Au Bimetallic Nanoparticles as Novel Suzuki Catalysts.
Authors: Heugebaert Thomas S. A. , De Corte Simon , Sabbe Tom , Hennebel Tom , Verstraete Willy , Boon Nico , Stevens Christian V.
Published: May 2012

Nanotype Pd and bimetallic Pd/Au materials are produced by reductive deposition of Na2PdCl2 or Na2PdCl4/HAuCl4 with Shewanella oneidensis growing overnight in Luria—Bertani medium.
ChemInform Abstract: ortho‐Methylated Tribenzotriquinacenes — Paving the Way to Curved Carbon Networks.
Authors: Kirchwehm Yvonne , Damme Alexander , Kupfer Thomas , Braunschweig Holger , Krueger Anke
Published: May 2012

The synthesis of sterically crowded tribenzotriquinacenes (III) with complete and partial methylation of the ortho‐positions is achieved using the double cyclodehydration strategy.
ChemInform Abstract: One‐Pot Synthesis of Pyranocoumarins via Microwave‐Assisted Pseudo Multicomponent Reactions and Their Molecular Switching Properties.
Authors: Li Kuan‐Ting , Lin Yong‐Bo , Yang Ding‐Yah
Published: May 2012

The optical properties of the new pyranocoumarins (IV) and (VI) are investigated.
ChemInform Abstract: Towards Chemical Libraries Based on Heterocyclic Scaffolds with Monofluorinated and Difluoroalkyl Side Chains.
Authors: Bannwarth Pierre , Gree Danielle , Das Saibal , Yadav Jhillu Singh , Gree Rene
Published: May 2012

A small library of 26 arylhetaryl systems containing fluorinated side chains, e.g. (III) and (V), is prepared by means of Suzuki—Miyaura and Still cross coupling reactions.
ChemInform Abstract: Highly Enantioselective Synthesis of Biologically Important 2,5‐Dihydropyrroles via Phosphoric Acid Catalyzed Three‐Component Reactions and Evaluation of Their Cytotoxicity.
Authors: Shi Feng , Tao Zhong‐Lin , Yu Jie , Tu Shu‐Jiang
Published: May 2012

Several of the synthesized dihydropyrroles exhibit moderate cytotoxicity towards the mammary carcinoma cell line MCF7.
ChemInform Abstract: Highly Efficient Narasaka—Heck Cyclizations Mediated by P(3,5‐(CF3)2C6H3)3: Facile Access to N‐Heterobicyclic Scaffolds.
Authors: Faulkner Adele , Bower John F.
Published: May 2012

A facile access to perhydroindole and related scaffolds via a highly efficient Pd‐catalyzed intramolecular cyclization of oxime esters with cyclic alkenes is given.
ChemInform Abstract: Furan Ring Opening—Indole Ring Closure: Recyclization of 2‐(2‐Aminophenyl)furans into 2‐(2‐Oxoalkyl)indoles.
Authors: Pilipenko Arkady S. , Mel'chin Vladimir V. , Trushkov Igor V. , Cheshkov Dmitry A. , Butin Alexander V.
Published: May 2012

A simple and efficient approach to the compounds (II) is presented.
ChemInform Abstract: Pd‐Catalyzed Asymmetric Hydrogenation of 3‐(Toluenesulfonamidoalkyl)indoles.
Authors: Duan Ying , Chen Mu‐Wang , Chen Qing‐An , Yu Chang‐Bin , Zhou Yong‐Gui
Published: May 2012

A series of title compounds (III) is prepared and hydrogenated using a chiral Pd catalyst to give the 2,3‐disubstituted indolines (IV) and (V) with up to 97% e.e.
ChemInform Abstract: Highly Efficient Conversion of Carbon Dioxide Catalyzed by Polyethylene Glycol‐Functionalized Basic Ionic Liquids.
Authors: Yang Zhen‐Zhen , Zhao Ya‐Nan , He Liang‐Nian , Gao Jian , Yin Zhong‐Shu
Published: May 2012

The polyethylene glycol‐functionalized basic ionic liquid TBDP is found to be a highly efficient and recyclable catalyst for the synthesis of cyclic carbonates (III) via direct carboxylation of epoxides (I) without the need of any organic solvents or additives.
ChemInform Abstract: Palladium‐Catalyzed Dehalogenation of 5‐Halopyrazoles.
Authors: Chen Chun‐Yen , Huang Yu‐Ying , Su Wei‐Nien , Kaneko Kimiyoshi , Kimura Masayuki , Takayama Hiroyuki , Wong Fung‐Fuh
Published: May 2012

A new and efficient method for the dehalogenation of 5‐halopyrazoles is developed.
ChemInform Abstract: Transformations of Enaminones. A Simple One‐Pot Synthesis of Imidazolone Derivatives.
Authors: Bezensek Jure , Groselj Uros , Stare Katarina , Svete Jurij , Stanovnik Branko
Published: May 2012

A three‐step one‐pot synthesis of various target compounds (IV), (VI), (VIII), (X), (XII), and (XIV) is presented.
ChemInform Abstract: Synthesis and Antimicrobial Activity of Substituted [(Pyrazol‐4‐yl)methylene]hydrazono‐2,3‐dihydrothiazoles and Their Sugar Derivatives.
Authors: Abdel‐Rahman Adel A.‐H. , El‐Sayed Wael A. , Zaki El‐Sayed G. , Mohamed Asem A. , Fadda Ahmed A.
Published: May 2012

A variety of N‐alkylated title thiazoles, e.g. (III), derivatives thereof, e.g. (IV), as well as N‐glycosyl analogues, e.g. (VI), are prepared.
ChemInform Abstract: A General Procedure for the Synthesis of Alkyl‐ and Arylethynyl‐1,2,3‐triazole‐Fused Dihydroisoquinolines.
Authors: Fiandanese Vito , Maurantonio Silvia , Punzi Angela , Rafaschieri Giacomo G.
Published: May 2012

Starting from 2‐halophenylethyl azides, a series of click reactions with trimethylsilylacetylenes and following C—C coupling reactions leads to the title compounds.
ChemInform Abstract: Synthesis Antimicrobial and Antioxidant Activities of Some New 3‐Indolyl Pyrazolo[2,3‐c]pyran and Its Derivatives.
Authors: Saundane Anand R. , Manjunatha Yarlakatti
Published: May 2012

The title compounds (III) show good antimicrobial and antioxidant activities.
ChemInform Abstract: Intramolecular 1,3‐Dipolar Cycloaddition of Nitrile N‐Oxide Accompanied by Dearomatization.
Authors: Yonekawa Morio , Koyama Yasuhito , Kuwata Shigeki , Takata Toshikazu
Published: May 2012

An easy approach to partially dearomatized cis‐dihydrobenzoisoxazole frameworks is presented.
ChemInform Abstract: Transformation of a Hydroxyl into an Acyl Group on α‐Pyrone Ring: A Novel Route to 3,4‐Diacylcoumarins.
Authors: Kotali Antigoni , Nasiopoulou Despina A. , Harris Philip A. , Helliwell Madeleine , Joule John A.
Published: May 2012

For the first time, the title transformation is applied to a heterocyclic ring.
ChemInform Abstract: Facile Synthesis of 1,3,4‐Thiadiazole Appended to Coumarins as Antimicrobial Agents.
Authors: Gireesh Tegginamath , Khan Gouse Mohiddin Z. , Kamble Ravindra R.
Published: May 2012

The title compounds (III) are obtained from semicarbazones (I) and acetic anhydride (II) and screened for their pharmacological parameters for bioavailability.
ChemInform Abstract: Three‐Component Reactions of N‐Nucleophiles and Activated Acetylenes with NH‐Acids: A Facile Synthesis in Water.
Authors: Charati Faramarz Rostami , Hossaini Zinatossadat , Hosseini‐Tabatabaei Mohammad R.
Published: May 2012

The reaction is conducted under environmentally benign conditions.
ChemInform Abstract: Racemic Synthesis of 2′‐Substituted Nicotine Analogues
Authors: Rouchaud Anne , Kem William R.
Published: May 2012

involving the practical synthesis of the key intermediate, cyanonicotine (IV) via the Polonovski as the key step
ChemInform Abstract: Microwave‐Assisted Synthesis of 1,3′‐Diaza‐flavanone/flavone and Their Alkyl Derivatives with Antimicrobial Activity.
Authors: Kahriman Nuran , Iskender Nagihan Yilmaz , Yuecel Murat , Yayli Nurettin , Demir Emine , Demirbag Zihni
Published: May 2012

A variety of N‐alkyl dihydroquinolinylpyridinium bromides, e.g. (V) and (VII), is prepared.
ChemInform Abstract: An Efficient One‐Pot Three‐Component Synthesis of Tetrahydrofuro[3,4‐b]quinoline‐1,8(3H,4H)‐dione Derivatives Catalyzed by L‐Proline.
Authors: Shi Chun‐Ling , Chen Hui , Shi Daqing
Published: May 2012

The reaction is conducted under environmentally benign conditions.
ChemInform Abstract: Synthesis and Biological Study of Some New Chalcones and Oxopyrimidines Containing Imidazo[1,2‐a]pyridine Nucleus.
Authors: Joshi M. J. , Vekariya P. B. , Dodiya B. L. , Ghetiya R. M. , Joshi H. S.
Published: May 2012

The highest activity against B.
ChemInform Abstract: Microwave‐Assisted Synthesis of 1,3‐Disubstituted β‐Carbolines from α‐(Alkylideneamino)nitriles and Gramine.
Authors: Letessier Julien , Detert Heiner , Goetz Katharina , Opatz Till
Published: May 2012

The title reaction produces indole derivatives of type (V) whose cyclization leads to formation of the desired alkaloid skeletons.
ChemInform Abstract: An Efficient One‐Pot Synthesis of a New Heterocyclic System.
Authors: Rahimizadeh Mohammad , Pordel Mehdi , Ranaei Mahsa , Bakavoli Mehdi
Published: May 2012

The nucleophilic substitution of hydrogen in a nitro derivative of imidazo[1,2‐a]pyridine (I) is used as key step in the one‐pot synthesis of a new, highly fluorescent heterocyclic system, pyridoimidazopyridoindoles (III).
ChemInform Abstract: Synthesis of 3‐Substituted and 2,3‐Disubstituted Quinazolinones via Cu‐Catalyzed Aryl Amidation.
Authors: Xu Lanting , Jiang Yongwen , Ma Dawei
Published: May 2012

Coupling and cyclization of N‐substituted o‐bromobenzamides with formamide takes place at 80°C, whereas the other amides are converted into the target compounds via HMDS/ZnCl2‐mediated condensative cyclization.
ChemInform Abstract: Ionic Liquid Mediated One‐Pot Synthesis of 6‐Aminouracils.
Authors: Chavan Sunil S. , Degani Mariam S.
Published: May 2012

The novel one‐pot synthesis of title aminouracils (IV) and (VII) proceeds via tetramethylguanidinium acetate‐promoted generation of urea and cyanoacetylurea intermediates.
ChemInform Abstract: [5 + 1] Cycloaddition of C,N‐Cyclic N′‐Acyl Azomethine Imines with Isocyanides.
Authors: Soeta Takahiro , Tamura Kaname , Ukaji Yutaka
Published: May 2012

Novel oxadiazine derivatives are constructed via a catalyst‐free reaction of azomethine imines and isocyanides.
ChemInform Abstract: Amine‐Directed Intramolecular Hydroacylation of Alkenes and Alkynes.
Authors: Bendorf Holly D. , Ruhl Kyle E. , Shurer Andrew J. , Shaffer Jennie B. , Duffin Tess O. , LaBarte Theresa L. , Maddock Michelle L. , Wheeler Oscar W.
Published: May 2012

The reaction offers a convenient access to medium‐sized N‐heterocycles and the process is significantly accelerated by the N‐allyl substituent.
ChemInform Abstract: Rapid Access to Pyrido[1,2,5]triazepin‐4‐ones Through Intramolecular Nucleophilic Aromatic Substitution.
Authors: Jin Shujuan , St‐Jean Olivier , Baltatu Sandra I. , Santhakumar Vijayaratnam , Tomaszewski Miroslaw J.
Published: May 2012

The condensation of ketoamides (I) and (IV) with methyl hydrazine produces hydrazones which undergo intramolecular nucleophilic aromatic substitution to yield the title compounds (III) and their benzo analogues (V).
ChemInform Abstract: Synthesis and Biological Activity of Novel Organoselenium Derivatives Targeting Multiple Kinases and Capable of Inhibiting Cancer Progression to Metastases.
Authors: Bijian Krikor , Zhang Zhongwei , Xu bin , Jie Su , Chen Bo , Wan Shengbiao , Wu JianHui , Jiang Tao , Alaoui‐Jamali Moulay A.
Published: May 2012

Compound (III) exhibits a potent anti‐metastatic activity at well‐tolerated doses in an invasive human brest cancer orthotropic mouse model.
ChemInform Abstract: New Polyhydroxypregnane Glycosides from Cynanchum otophyllum
Authors: Shan Wei‐Guang , Liu Xiao , Ma Lie‐Feng , Zhan Zha‐Jun
Published: May 2012

isolation and structural elucidation of two new pregnane glycosides, cynotophylloside G (I) and cynotophylloside H (II)
ChemInform Abstract: A General Preparation of Protected Phosphoamino Acids.
Authors: Petrillo Daniel E. , Mowrey Dale R. , Allwein Shawn P. , Bakale Roger P.
Published: May 2012

A simple and inexpensive one‐pot procedure for the preparation of various protected phosphoamino acids is developed.
ChemInform Abstract: Pd‐Catalyzed Amidation of 2,6‐Dihalopurine Nucleosides. Replacement of Iodine at 0 °C.
Authors: Bosch Lluis , Cialicu Ionela , Caner Joaquim , Ariza Xavier , Costa Anna M. , Terrazas Montserrat , Vilarrasa Jaume
Published: May 2012

The replacement of halogen substituents by different N‐nucleophiles is investigated.
ChemInform Abstract: Recent Progress in Nanostructured Multiferroic Bi2FeCrO6 Thin Films.
Authors: Nechache Riad , Rosei Federico
Published: May 2012

Review: 47 refs.
ChemInform Abstract: Mechanisms of Water Oxidation Catalyzed by Ruthenium Coordination Complexes
Authors: Clark Aurora E. , Hurst James K.
Published: May 2012

Review: 133 refs.
ChemInform Abstract: Hydrogen Spillover. Facts and Fiction
Authors: Prins R.
Published: May 2012

Review: 197 refs.
ChemInform Abstract: Transition Metal‐Catalyzed [4 + 3] Cycloaddition Reactions Involving Allyl Cations
Authors: Fernandez Israel , Mascarenas Jose Luis
Published: May 2012

Review: 24 refs.
ChemInform Abstract: Transition Metal Catalysis and Nucleophilic Fluorination
Authors: Hollingworth Charlotte , Gouverneur Veronique
Published: May 2012

Review: 82 refs.
ChemInform Abstract: An Atom‐Efficient Synthetic Method: Carbosilylations of Alkenes, Alkynes, and Cyclic Acetals Using Lewis and Broensted Acid Catalysts
Authors: Motokura Ken , Baba Toshihide
Published: May 2012

Review: 55 refs.
ChemInform Abstract: Structure and Surface Chemistry of Gold‐Based Model Catalysts
Authors: Gong Jinlong
Published: May 2012

Review: 802 refs.
ChemInform Abstract: Phosgenation Reactions with Phosgene from Triphosgene
Authors: Eckert Heiner
Published: May 2012

Review: 29 refs.
ChemInform Abstract: Orthogonal Protecting Groups and Side‐Reactions in Fmoc/tBu Solid‐Phase Peptide Synthesis
Authors: Carganico Stefano , Papini Anna Maria
Published: May 2012

Review: 169 refs.
ChemInform Abstract: 1‐Amino‐1,1‐bisphosphonates ‐ Fundamental Syntheses and New Developments
Authors: Romanenko Vadim D. , Kukhar Valery P.
Published: May 2012

Review: 126 refs.
ChemInform Abstract: Recent Advances of Olefin Metathesis and It′s Applications in Organic Synthesis
Authors: Naresh P. , Sirisha M. , Vijay K. , Srinath N.
Published: May 2012

Review: 39 refs.
ChemInform Abstract: Chiral Ionic Liquids Derived from (‐)‐Ephedrine and Carbohydrates: Synthesis, Properties and Applications to Asymmetric Synthesis and Catalysis
Authors: Truong Thi‐Kim‐Thu , Van Buu Olivier Nguyen , Aupoix Audrey , Pegot Bruce , Vo‐Thanh Giang
Published: May 2012

Review: 78 refs.
ChemInform Abstract: Synthesis of Alkenes by Alkenation with Metal Carbenes and Related Reactions
Authors: Petasis N. A.
Published: May 2012

Review: 248 refs.
ChemInform Abstract: Aspects of Anion Coordination from Historical Perspectives
Authors: Bianchi Antonio , Bowman‐James Kristin , Garcia‐Espana Enrique
Published: May 2012

Review: 230 refs.
ChemInform Abstract: Spin Wave Acoustics of Antiferromagnetic Structures as Magnetoacoustic Metamaterials
Authors: Gulyaev Yu V. , Tarasenko S. V. , Shavrov V. G.
Published: May 2012

Review: 247 refs.
ChemInform Abstract: Advances in the Deposition Chemistry of Metal‐Containing Thin Films Using Gas Phase Processes
Authors: Bahlawane Naoufal , Kohse‐Hoeinghaus Katharina , Premkumar Peter Antony , Lenoble Damien
Published: May 2012

Review: 116 refs.
ChemInform Abstract: On the Multiple Facets of Aromaticity: Organic, Inorganic, Organometallic, Coordination and Supramolecular Case Studies
Authors: Ferbinteanu Marilena , Cimpoesu Fanica
Published: May 2012

Review: 73 refs.
ChemInform Abstract: Kinetically and Thermodynamically Controlled Syntheses of Covalent Molecular Capsules
Authors: Badjic Jovica D. , Stojanovic Sandra , Ruan Yian
Published: May 2012

Review: 145 refs.
ChemInform Abstract: Clearing the Water
Authors: Angell Austen
Published: May 2012

Review: examination of water‐glycerol mixtures; 17 refs.
ChemInform Abstract: Empowering Systems Analysis for Solid Waste Management: Challenges, Trends, and Perspectives
Authors: Chang Ni‐Bin , Pires Ana , Martinho Graca
Published: May 2012

Review: 417 refs.
Labelling of olfactory ensheathing cells with micron‐sized particles of iron oxide and detection by MRI
Authors: Sandvig Ioanna , Hoang Linh , Sardella Thomas C. P. , Barnett Susan C. , Brekken Christian , Tvedt Kåre , Berry Martin , Haraldseth Olav , Sandvig Axel , Thuen Marte
Published: May 2012

A crucial issue in transplant‐mediated repair of the damaged central nervous system (CNS) is serial non‐invasive imaging of the transplanted cells, which has led to interest in the application of magnetic resonance imaging (MRI) combined with designated intracellular magnetic labels for cell tracking. Micron‐sized particles of iron oxide (MPIO) have been successfully used to track cells by MRI, yet there is relatively little known about either their suitability for efficient labelling of specific cell types, or their effects on cell viability. The purpose of this study was to develop a suitable MPIO labelling protocol for olfactory ensheathing cells (OECs), a type of glia used to promote the regeneration of CNS axons after transplantation into the injured CNS. Here, we demonstrate an OEC labelling efficiency of >90% with an MPIO incubation time as short as 6 h, enabling intracellular particle uptake for single‐cell detection by MRI without affecting cell proliferation, migration and viability. Moreover, MPIO are resolvable in OECs transplanted into the vitreous body of adult rat eyes, providing the first detailed protocol for efficient and safe MPIO labelling of OECs for non‐invasive MRI tracking of transplanted OECs in real time for use in studies of CNS repair and axon regeneration. Copyright © 2012 John Wiley & Sons, Ltd.
Superparamagnetic iron oxide nanoparticles conjugated to a grass pollen allergen and an optical probe
Authors: Herranz Fernando , Schmidt‐Weber Carsten B. , Shamji Mohamed H. , Narkus Annemarie , Ruiz‐Cabello Jesus , Vilar Ramon
Published: May 2012

In this study we report the development of a bioconjugate between superparamagnetic iron oxide nanoparticles and Phl p5a (one of the major allergens from grass pollen). The bioconjugate also contains an optical probe (Alexa647) conjugated to the nanoparticle via biotin–streptavidin association. We show that this conjugate has a range of features that makes it a very promising candidate to image the localization of this allergen in vivo: (a) upon conjugation to the iron oxide nanoparticles, the allergen retains its ability to interact with IgE antibodies; (b) the magnetic properties of the iron oxide core of this bioconjugate are suitable for MR imaging; and (c) Alexa647 fluorophore retains its emission properties once attached to the iron oxide nanoparticles, yielding a dual modality MRI‐optical probe. Copyright © 2012 John Wiley & Sons, Ltd.
The serial effect of iodinated contrast media on renal hemodynamics and oxygenation as evaluated by ASL and BOLD MRI
Authors: Zhang Yudong , Wang Jing , Yang Xuedong , Wang Xiaoying , Zhang Jue , Fang Jing , Jiang Xuexiang
Published: May 2012

Contrast‐induced nephropathy is a prevalent cause of renal failure, and the mechanisms underlying this injury are not fully understood. We utilized noninvasive functional MRI in order to determine the serial effect of a single administration of iodinated contrast media (CM) on renal hemodynamics and oxygenation. Fifteen rabbits were randomized to receive an intravenous injection of CM (i.e. iopamidol‐370; 6 ml kg−1 body weight) or an equivalent amount of 0.9% saline. Both arterial spin‐labeling and blood oxygen level‐dependent imaging sequences were performed at 24 h before and at intervals of 1, 24, 48 and 72 h after injection to obtain serial renal blood flow (RBF) and relative spin–spin relaxation rate (R2*). Results showed that, in the iopamidol group, the mean cortical RBF decreased at 1 h (p = 0.04 vs baseline), reached its minimum at 24 h (p = 0.01) and gradually returned to baseline by 48 h (p = nonsignificant, NS). The outer medullary RBF decreased to its minimum by 24 h (p = 0.00) and remained less than baseline until 72 h. R2* in inner stripes was dramatically increased at 1 h (p = 0.00), remained elevated at 24 h (p = 0.05), but returned to baseline by 48 h (p = NS). R2* values within the cortex and outer stripes and inner medulla were slightly increased, but the changes did not reach a statistical significance (p = NS). Saline did not produce positive change in either RBF or R2* within different compartments of the kidney. We conclude that iopamidol is associated with a relatively longer‐term hypoperfusion in whole kidney and decreased oxygen level in the inner stripes of the outer medulla. Copyright © 2012 John Wiley & Sons, Ltd.