bluuebunny/crossref_metadata_2025_split huggingface dataset:
Permeability mapping in naturally heterogeneous sandstone cores by magnetization prepared centric‐scan sprite
Authors: Romanenko Konstantin , Balcom Bruce J. 
Published: February 2012

AbstractA time‐efficient MRI method suitable for quantitative two‐dimensional (2‐D) mapping of permeability in sedimentary rock cores, and granular media samples is discussed. The images of porosity and mean axial velocity in the plane transverse to the average flow direction are essential to determine 2‐D distribution of permeability in a core sample. The 2‐D permeability mapping is particularly useful for discrimination of bedding and lamination layers, fractures and fault facies that occur in sedimentary rocks. The proposed method combines the 13‐interval APGSTE scheme and centric‐scan SPRITE. The APGSTE scheme is known to substantially reduce gradient‐related errors in diffusion measurements. The SPRITE method provides quantitative information on fluid content within the core samples. The experiment time is critically reduced when only a few samples near theq‐space origin are collected. The APGSTE‐SPRITE method is illustrated through mapping of 2‐D permeability and 3‐D velocity field in naturally heterogeneous sandstone cores. © 2012 American Institute of Chemical Engineers AIChE J, 2012
Chemistry of Anthracene–Acetylene Oligomers XX: Synthesis, Structures, and Self‐Association of Anthracene–Anthraquinone Cyclic Compounds with Ethynylene Linkers
Authors: Iwanaga Tetsuo , Miyamoto Kazuaki , Tahara Kazukuni , Inukai Koji , Okuhata Satoshi , Tobe Yoshito , Toyota Shinji 
Published: February 2012

AbstractWe have synthesized anthracene–acetylene oligomers, which contained one 10‐substituted anthracene unit and one anthraquinone unit, by cyclization with Sonogashira coupling. X‐ray analysis revealed an almost‐planar framework and significant out‐of‐plane deformation around the inner carbonyl moiety because of steric hindrance. These compounds underwent self‐association in solution and their association constants for monomer–dimer exchange were determined by variable‐concentration 1H NMR measurements in CDCl3: 8 mol−1 L (10‐substituent: isopropyl), <5 mol−1 L (methoxy), and 19 mol−1 L (octyloxy). These results were discussed on the basis of spectroscopic and molecular‐orbital analysis. A linear molecular assembly of the octyloxy compound at a liquid/graphite interface was observed by STM measurements.
Open‐field arena boundary is a primary object of exploration for Drosophila
Authors: Soibam Benjamin , Mann Monica , Liu Lingzhi , Tran Jessica , Lobaina Milena , Kang Yuan Yuan , Gunaratne Gemunu H. , Pletcher Scott , Roman Gregg 
Published: February 2012

AbstractDrosophila adults, when placed into a novel open‐field arena, initially exhibit an elevated level of activity followed by a reduced stable level of spontaneous activity and spend a majority of time near the arena edge, executing motions along the walls. In order to determine the environmental features that are responsible for the initial high activity and wall‐following behavior exhibited during exploration, we examined wild‐type and visually impaired mutants in arenas with different vertical surfaces. These experiments support the conclusion that the wall‐following behavior of Drosophila is best characterized by a preference for the arena boundary, and not thigmotaxis or centrophobicity. In circular arenas, Drosophila mostly move in trajectories with low turn angles. Since the boundary preference could derive from highly linear trajectories, we further developed a simulation program to model the effects of turn angle on the boundary preference. In an hourglass‐shaped arena with convex‐angled walls that forced a straight versus wall‐following choice, the simulation with constrained turn angles predicted general movement across a central gap, whereas Drosophila tend to follow the wall. Hence, low turn angled movement does not drive the boundary preference. Lastly, visually impaired Drosophila demonstrate a defect in attenuation of the elevated initial activity. Interestingly, the visually impaired w1118 activity decay defect can be rescued by increasing the contrast of the arena's edge, suggesting that the activity decay relies on visual detection of the boundary. The arena boundary is, therefore, a primary object of exploration for Drosophila.
New Isoprenylated Flavones and Stilbene Derivative from Artocarpus hypargyreus
Authors: Yu Mei‐Hua , Zhao Ting , Yan Gui‐Rui , Yang Hong‐Xun , Wang He‐Yao , Hou Ai‐Jun 
Published: February 2012

AbstractThree new isoprenylated flavones, hypargyflavones A–C (1–3, resp.), and one novel stilbene derivative, hypargystilbene A (4), together with seven known compounds, 5–11, were isolated from the stems of Artocarpus hypargyreus Hance. The structures were elucidated by spectroscopic methods. Hypargyflavone A (1), cudraflavone C (8), brosimone I (10), and norartocarpin (11) showed inhibitory effects on pancreatic lipase.
The Influence of Certain Taxonomic and Environmental Parameters on Biomass Production and Triterpenoid Content in the Leaves of Centella asiatica (L.) Urb. from Madagascar
Authors: Rahajanirina Voninavoko , Rakotondralambo Raoseta Soaharin'ny Ony , Roger Edmond , Razafindrazaka Harena , Pirotais Sarah , Boucher Marie , Danthu Pascal 
Published: February 2012

AbstractCentella asiatica (Apiaceae family; Talapetraka in Malagasy) is a tropical and subtropical plant with leaves containing glycotriterpenoids (asiaticosides) used in traditional and modern medicine. C. asiatica is collected exclusively in natural stands. It is Madagascar's second most important indigenous plant export. The objective in this study is to provide data which will make it possible to optimize the harvest and thus effectively develop this resource. Two foliar morphotypes were identified: morphotype A with small reniform leaves (leaf area ca. 4.5 cm2), found in the east of Madagascar, and morphotype B with large round leaves (up to 7.5 cm2) found in the west, with sympatric zones in the central part of the island. Morphotype A produces a higher biomass, and is twice as rich in asiaticosides as morphotype B. Significant variations in biomass yield and asiaticoside content are observed depending on the date of collection: higher during the rainy season (December to April) and lower during the dry season (June to August). Inter‐annual variations are also observed. Populations located at around 800–1400 m altitude on the eastern side of Madagascar, in a sub‐humid climate, appeared to be more productive. These results provide more precise information to the economic sector, which confirms the empirical choices made by collectors. They represent the first elements towards sustainable management of the resource, and maybe even domestication.
A Novel Phytotoxic Nonenolide from Phomopsis sp. HCCB03520
Authors: Yang Zhijun , Ge Mei , Yin Yu , Chen Yi , Luo Minyu , Chen Daijie 
Published: February 2012

AbstractA novel phytotoxic nonenolide, (6S,7R,9R)‐6,7‐dihydroxy‐9‐propylnon‐4‐eno‐9‐lactone (1), was isolated from solid cultures of the endophytic fungus Phomopsis sp. HCCB03520, together with three known compounds, cytochalasin H (2), cytochalasin N (3), and epoxycytochalasin H (4). The structures of these compounds were elucidated through spectroscopic analysis, and the absolute configurations were determined by CD spectroscopy. Phytotoxic activities of compounds 1–4 were also investigated. Compound 1 showed phytotoxic activity on germination and radicle growth of Medicago sativa, Trifolium hybridum, and Buchloe dactyloides.
Phytochemical and Biological Studies of Ochna Species
Authors: Bandi Anil Kumar Reddy , Lee Dong‐Ung , Tih Raphaël Ghogomu , Gunasekar Duvvuru , Bodo Bernard 
Published: February 2012

AbstractThe genus Ochna L. (Gr, Ochne; wild pear), belonging to the Ochnaceae family, includes ca. 85 species of evergreen trees, shrubs, and shrublets, distributed in tropical Asia, Africa, and America. Several members of this genus have long been used in folk medicine for treatment of various ailments, such as asthma, dysentery, epilepsy, gastric disorders, menstrual complaints, lumbago, ulcers, as an abortifacient, and as antidote against snake bites. Up to now, ca. 111 constituents, viz. flavonoids (including bi‐, tri‐, and pentaflavonoids), anthranoids, triterpenes, steroids, fatty acids, and a few others have been identified in the genus. Crude extracts and isolated compounds have been found to exhibit analgesic, anti‐HIV‐1, anti‐inflammatory, antimalarial, antimicrobial, and cytotoxic activities, lending support to the rationale behind several of its traditional uses. The present review compiles the informations concerning the traditional uses, phytochemistry, and biological activities of Ochna.
Seasonal Variations of Phenolic Compounds and Biological Properties in Sage (Salvia officinalis L.)
Authors: Generalić Ivana , Skroza Danijela , Šurjak Jana , Možina Sonja Smole , Ljubenkov Ivica , Katalinić Ana , Šimat Vida , Katalinić Višnja 
Published: February 2012

AbstractThe aim was to investigate the phenolic content, antioxidant capacity, and antibacterial activity of Dalmatian sage (Salvia officinalis L.) leaves collected during different vegetation periods. Separation and quantification of the individual phenols were performed by reversed‐phase (RP)‐HPLC coupled with a PDA (photodiode array) detector and using an internal standard, while the contents of total phenols, flavonoids, flavones, and flavonols were determined spectrophotometrically. The antioxidant properties of the sage leaf extracts were evaluated using five different antioxidant assays (FRAP, DPPH, ABTS, BriggsRauscher reaction, and β‐carotene bleaching). The antimicrobial activity of the extracts was tested against two Gram‐positive (Bacillus cereus and Staphylococcus aureus) and two Gram‐negative (Salmonella Infantis and Escherichia coli) bacterial reference strains. All extracts were extremely rich in phenolic compounds, and provided good antioxidant and antibacterial properties, but the phenophase in which the leaves were collected affected the phenolic composition of the sage extracts and consequently their biological activity. The May Extract, the richest in total flavonoids, showed the best antioxidant properties and the highest antimicrobial activity. Thus, collection of the plants during May seems the best choice for further use of them in the pharmaceutical and food industry.
Putative Binding Sites, and Pathways to Them, for Amidine and Guanidine Current Inhibitors on Acid‐Sensing Ion Channels (ASIC). A Theoretical Approach with hASIC1a Homology Model
Authors: Pietra Francesco 
Published: February 2012

AbstractCentral inhibition of the acid‐sensing hASIC1a channel, acting upstream of the opiate system, might serve to treat any type of pain, avoiding the unwanted addiction problems of the opioid drugs. To this end, inhibition of hASIC1a channel by PcTx1, a peptide from the Trinidad chevron tarantula, is under development. New inhibitors of the hASIC1a channel are also being sought, in the hope of further modulating the activity, from which antiplasmodial amidine and guanidine phenyl drugs have emerged as promising candidates. However, how such current inhibition takes place remains obscure from the molecular point of view, hindering any further progress in developing drugs. Therefore, the nature of the binding sites, and how they are reached by the amidine‐guanidine drugs, was investigated here via automated docking and molecular dynamics with hASIC1a homology models. This study has revealed that this ion channel is rich in binding sites, and that flexible drugs, such as nafamostat, may penetrate it in a snake‐like elongated conformation. Then, crawling like a snake through temporary holes in the protein, nafamostat either simply flips, or changes to a high‐energy folded conformation to become adapted to the shape of the binding site.
ChemInform Abstract: Variation of Oxygen Content in Selected Potassium Fluorido‐oxido‐tantalate Phases.
Authors: Boca Miroslav , Moncol Jan , Netriova Zuzana , Velic Dusan , Jerigova Monika , Nunney Tim S. , Baily Christopher J. , Kubikova Blanka , Simko Frantisek , Janderka Pavel 
Published: February 2012

AbstractK3[TaO4]·K3 [TaF4O2] is characterized by powder and single crystal XRD, XPS, and SIMS.
ChemInform Abstract: Efficient Synthesis of Plate‐Like Crystalline Hydrated Tungsten Trioxide Thin Films with Highly Improved Electrochromic Performance.
Authors: Jiao Zhihui , Wang Xiu , Wang Jinmin , Ke Lin , Demir Hilmi Volkan , Koh Tien Wei , Sun Xiao Wei 
Published: February 2012

AbstractNanostructured 3WO3·H2O films are prepared by hydrothermal treatment of a crystal‐seed‐coated F‐doped tin oxide glass substrate and an aqueous Na2WO4 solution containing HCl, H2O2, and Na2SO4 as a capping agent (autoclave, 180 °C, 2 h).
ChemInform Abstract: A Perovskite Oxide Optimized for Oxygen Evolution Catalysis from Molecular Orbital Principles.
Authors: Suntivich Jin , May Kevin J. , Gasteiger Hubert A. , Goodenough John B. , Shao‐Horn Yang 
Published: February 2012

AbstractBa0.5Sr0.5Co0.8Fe0.2 O3‐δ catalyzes the oxygen evolution reaction with intrinsic activity that is at least one order of magnitude higher than that of the state‐of‐the‐art IrO2 catalyst in alkaline media.
ChemInform Abstract: Solvothermal Synthesis of a Bimetallic Thiometallate Containing Germanium in Two Oxidation States.
Authors: Powell Anthony V. , Mackay Rosalyn 
Published: February 2012

AbstractSingle crystals of the new compound [Ge(en)3][GeSb2S6] are prepared by solvothermal reaction of GeO2, Sb2S3, and sulfur in ethylenediamine (autoclave, 463 K, 6 d, 80% yield).
ChemInform Abstract: New Quaternary Sulfides in the AE‐RE‐Sn‐S System (AE = Alkaline‐Earth, RE = Rare Earth).
Authors: Zeng Hui‐Yi , Zhao Zhong‐Yan , Guo Sheng‐Ping , Zheng Fa‐Kun , Guo Guo‐Cong , Huang Jin‐Shun 
Published: February 2012

AbstractThe new compounds Sr2Y2.67Sn3S12, Ca3La2Sn3S12, and Ca3Er2Sn3s12 are prepared from appropriate mixtures of CaS, SrS, La2S3, Er2S3, SnS2, Sn, S, La, or Y using KBr as fluxing agent (silica ampules, 950—1000 °C, 100—316 h).
ChemInform Abstract: New Antimonato Polyoxovanadates Based on the [V14IVSb8IIIO42 (H2O)]4‐ Cluster Type.
Authors: Antonova Elena , Wutkowski Adam , Naether Christian , Bensch Wolfgang 
Published: February 2012

AbstractThe new compounds (III) and (IV) are characterized by single crystal XRD and IR and Raman spectroscopy.
ChemInform Abstract: Spontaneous Self‐Assembly of a Giant Spherical Metal‐Oxide Keplerate: Addition of One Building Block Induces “Immediate” Formation of the Complementary One from a Constitutional Dynamic Library.
Authors: Schaeffer Christian , Todea Ana Maria , Gouzerh Pierre , Mueller Achim 
Published: February 2012

Abstract(NH4)42 [MoVI72MoV60O372 (OAc)30(H2O)72] ·300H2O·10NH4OAc (I) is synthesized by addition of the oxalato complex (NH4)2 [Mo2O4(C2O4)2 (H2O)2]·3H2O to an aqueous solution of (NH4)6Mo7O24, AcOH, and NH4OH at pH 4 (4 h, 16% yield).
ChemInform Abstract: Synthesis, Structures and Properties of New Hybrid Solids Containing Ruthenium Complexes and Polyoxometalates.
Authors: Yan Bangbo , Hodsdon Samantha A. , Li Yan‐Fen , Carmichael Christopher N. , Cao Yan , Pan Wei‐Ping 
Published: February 2012

AbstractCompounds (IV) and (VI) (yields are given in gram) are characterized by powder and single crystal XRD and FTIR, UV/VIS, and luminescence spectroscopy.
ChemInform Abstract: Crystal Growth, Structure, and Physical Properties of Ln2PdGa12 (Ln: La, Pr, Nd, and Sm).
Authors: Kangas Michael J. , Drake Brenton L. , Haldolaarachchige Neel , Young D. P. , Chan Julia Y. 
Published: February 2012

AbstractSingle crystals of the title compounds are prepared by reaction of the elements using excess Ga as flux (alumina crucibles, 1150 °C, 7 h).
ChemInform Abstract: Experimental and Theoretical Investigation of the Scope of Enantioselective Ketone Allylations Employing Nakamura′s Allylzinc—Bisoxazoline Reagent.
Authors: Johnson A. George , Loertscher Brad M. , Moeck Adam R. , Matthews Sam S. , Ess Daniel H. , Castle Steven L. 
Published: February 2012

AbstractThe allylation of asymmetric ketones generally proceeds with good yields and low to moderate enantiomeric excess.
ChemInform Abstract: Catalytic Asymmetric Activation of a C(sp3)—H Bond Adjacent to a Nitrogen Atom: A Versatile Approach to Optically Active α‐Alkyl α‐Amino Acids and C1‐Alkylated Tetrahydroisoquinoline Derivatives.
Authors: Zhang Gen , Zhang Yaohu , Wang Rui 
Published: February 2012

AbstractThe DDQ‐mediated cross‐dehydrogenative coupling of a variety of oxocyclopentanecarboxylates or analogues with glycine esters is efficiently catalyzed by Cu(II)/chiral bisoxazoline.
ChemInform Abstract: New Chiral Sulfonamide Ligands Derived from L‐Proline for Catalytic Enantioselective Cyclopropanation.
Authors: Shi Xiao‐hua , Li Cun , Jin Zhao , Zhou Cai‐rong , Jiang Deng‐gao 
Published: February 2012

AbstractChiral ligands derived from L‐proline are found to catalyze the Simmons—Smith cyclopropanation of cinnamyl alcohol (I).
ChemInform Abstract: Organocatalytic Enantioselective [3 + 2] Cycloaddition Using Stable Azomethine Ylides.
Authors: Fernandez Naiara , Carrillo Luisa , Vicario Jose L. , Badia Dolores , Reyes Efraim 
Published: February 2012

AbstractThe catalytic enantioselective [3 + 2] cycloaddition between enals (II) and stable azomethine ylides (I) and (IV) is described.
ChemInform Abstract: One‐Pot Oxidation of Alanine and Its Ethyl Ester with a Mild Oxidant 4′‐Methylazobenzene‐2‐sulfenyl Bromide.
Authors: Barman Pranjit , Bhattacharjee Saibal Kanti , Bhattacharjee Tirtha 
Published: February 2012

AbstractOne pot oxidation of alanine (I) and its ethyl ester (V) with sulfenyl bromide (II) followed by hydrolysis leads ethanal (IV) and pyruvic acid (VII), resp., which are isolated as 2,4‐dinitrophenylhydrazones (no yields given).
ChemInform Abstract: Novel Synthetic Methodologies. Part 228. Copper‐Catalyzed Coupling of Imidazoles and Pyrazoles with 1,1‐Dibromo‐1‐alkenes: A Distinct Approach for Direct N‐Alkylation of Heteroarenes.
Authors: Das Biswanath , Salvanna N. , Reddy Gandolla Chinna , Balasubramanyam Penagaluri 
Published: February 2012

AbstractUnder optimized conditions, the reactions of imidazoles or pyrazoles with dibromoalkenes afford the corresponding N‐alkynylated products.
ChemInform Abstract: Cobalt‐Catalyzed Reductive Allylation of Alkyl Halides with Allylic Acetates or Carbonates.
Authors: Qian Xin , Auffrant Audrey , Felouat Abdellah , Gosmini Corinne 
Published: February 2012

AbstractUnder optimized conditions, a variety of allylic acetates and carbonates undergo the title reaction with primary, secondary, and tertiary alkyl halides to give predominantly the linear products (with a minimal proportion of 78%).
ChemInform Abstract: An Expedient, Fast and Competent Synthesis of Organic Dithiocarbamates over Nanocrystalline MgO in Water at Room Temperature.
Authors: Karmakar Bikash , Banerji Julie 
Published: February 2012

AbstractMgO nanoparticles efficiently catalyze the three component reaction of amines, olefins, and carbon disulfide to produce dithiocarbamates (IV) (16 examples).
ChemInform Abstract: Solvent‐Free and Efficient Synthesis of Highly Functionalized Cyclohexa‐1,3‐diene Derivatives via a Novel One‐Pot Three‐Component Reaction.
Authors: Alizadeh Abdolali , Rezvanian Atieh , Mokhtari Javad 
Published: February 2012

AbstractThe procedure allows readily access to the title compounds as important substructures of biologically active products.
ChemInform Abstract: Carbene Adduct of Cyclopalladated Ferrocenylimine Catalyzed α‐Arylation of Ketones with Aryl Chlorides or Bromides.
Authors: Zhang Jinli , Yang Xueqian , Cui Xiuling , Wu Yangjie 
Published: February 2012

AbstractA variety of aryl chlorides and bromides, including unactivated and sterically hindered halides, successfully undergoes α‐arylation of aryl alkyl ketones as well as cyclic ketones in the presence of a novel ferrocenylimine—Pd(II)—NHC ligand.
ChemInform Abstract: Short Synthesis of Ethyl 3‐(3‐Aminophenyl)propanoate (V).
Authors: Nagel Ulrike , Radau Gregor , Link; Andreas Link; Andreas 
Published: February 2012

AbstractThe title compound (V) is efficiently obtained using a tandem Knoevenagel condensation/alkylidene reduction of 3‐nitrobenzaldehyde with Meldrum′s acid in the presence of triethylammonium formate followed by reduction of the intermediate 3‐(3‐nitrophenyl)propanoic acid by stannous chloride.
ChemInform Abstract: Oxidative C—H Homodimerization of Phenylacetamides.
Authors: Pintori Didier G. , Greaney Michael F. 
Published: February 2012

AbstractThe reaction applies catalytic amounts of Pd(OAc)2 and Cu(OTf)2 under oxygen atmosphere to afford symmetrical 2,2‐disubstituted biaryls that display a wide range of amide functionality and tolerates ortho‐, meta‐ and para substitution at the biphenyl rings.
ChemInform Abstract: Mild Synthesis of N′‐Aryl‐N,N‐dimethylformamidinium Chloride by Vilsmeier—Haack Reagent.
Authors: Meng Ge , Sha Yao Wu , Zhang Rui , Bai Nan 
Published: February 2012

AbstractGood to excellent yields of the title compounds, suitable synthons for biologically important heterocyclic systems, are obtained for p‐substituted anilines, whereas lower yields are achieved with m‐ and o‐substituted substrates.
ChemInform Abstract: Stereoselective Synthesis of Polyfunctional Tetrasubstituted Alkenyl Sulfides via a Carbocupration of Alkynyl Sulfides with Aryl and Benzylic Diorganozincs.
Authors: Dunst Cora , Metzger Albrecht , Zaburdaeva Elena A. , Knochel Paul 
Published: February 2012

AbstractThe process results in an (E)‐selective synthesis of tri‐ and tetrasubstituted alkenyl sulfides.
ChemInform Abstract: Heterobimetallic Dianionic Guanidinate Complexes of Lanthanide and Lithium: Highly Efficient Precatalysts for Catalytic Addition of Amines to Carbodiimides to Synthesize Guanidines.
Authors: Zhang Xingmin , Wang Chuanyong , Qian Cunwei , Han Fubin , Xu Fan , Shen Qi 
Published: February 2012

AbstractThe addition of a wide variety of aromatic and aliphatic primary (III) and secondary amines (IV) towards carbodiimides, e.g. (II), is efficiently catalyzed by a heterobimetallic La/Li guanidinate complex.
ChemInform Abstract: An Efficient Synthesis of N‐Substituted‐3‐aryl‐3‐ (2‐hydroxy‐4,4‐dimethyl‐6‐oxocyclohex‐1‐enyl)propanamides by Four‐Component Reaction in Aqueous Medium.
Authors: Dou Guolan , Zhong Xiaoxing , Wang Deming , Shi Daqing 
Published: February 2012

AbstractThe reaction is conducted under environmentally benign conditions.
ChemInform Abstract: Synthesis of 5‐Substituted 2,3‐Dihydrobenzofurans in a One‐Pot Oxidation/Cyclization Reaction.
Authors: Baragona Fabien , Lomberget Thierry , Duchamp Christian , Henriques Natali , Piccolo Eugenio Lo , Diana Patrizia , Montalbano Alessandra , Barret Roland 
Published: February 2012

AbstractThe oxidation of N‐protected p‐aminophenol derivatives to quinone imides is combined with cycloaddition towards azadiene (II) in a one‐pot reaction to give dihydrobenzofuran derivatives in moderate to good yields.
ChemInform Abstract: Non‐Steroidal Dissociated Glucocorticoid Agonists: Indoles as A‐Ring Mimetics and Function‐Regulating Pharmacophores.
Authors: Betageri Raj , et al. et al. 
Published: February 2012

AbstractSAR analysis of non‐steroidal glycocorticoid mimetics lead to the discovery of new agonist (I), which shows high progesterone receptor and mineralocorticoid receptor selectivity, potent agonist activity, and reduced transactivation activity in the MMTV (mouse mammary tumor virus) and aromatase assays.
ChemInform Abstract: PdII/IV‐Catalyzed Oxidative Cyclization of 1,6‐Enynes Derived by Ugi‐4‐Component Reaction.
Authors: Welsch Sebastian J. , Umkehrer Michael , Ross Guenther , Kolb Juergen , Burdack Christoph , Wessjohann Ludger A. 
Published: February 2012

AbstractVarious functionalities are tested in the process which affords the ring system (VI) with 3 points of diversity.