bluuebunny/crossref_metadata_2025_split huggingface dataset:
Biohydrogen production from wheat straw hydrolysate by dark fermentation using extreme thermophilic mixed culture
Authors: Kongjan Prawit , O‐Thong Sompong , Kotay Meher , Min Booki , Angelidaki Irini 
Published: December 2009

AbstractHydrolysate was tested as substrate for hydrogen production by extreme thermophilic mixed culture (70°C) in both batch and continuously fed reactors. Hydrogen was produced at hydrolysate concentrations up to 25% (v/v), while no hydrogen was produced at hydrolysate concentration of 30% (v/v), indicating that hydrolysate at high concentrations was inhibiting the hydrogen fermentation process. In addition, the lag phase for hydrogen production was strongly influenced by the hydrolysate concentration, and was prolonged from approximately 11 h at the hydrolysate concentrations below 20% (v/v) to 38 h at the hydrolysate concentration of 25% (v/v). The maximum hydrogen yield as determined in batch assays was 318.4 ± 5.2 mL‐H2/g‐sugars (14.2 ± 0.2 mmol‐H2/g‐sugars) at the hydrolysate concentration of 5% (v/v). Continuously fed, and the continuously stirred tank reactor (CSTR), operating at 3 day hydraulic retention time (HRT) and fed with 20% (v/v) hydrolysate could successfully produce hydrogen. The hydrogen yield and production rate were 178.0 ±  10.1 mL‐H2/g‐sugars (7.9 ± 0.4 mmol H2/g‐sugars) and 184.0 ± 10.7 mL‐H2/day Lreactor (8.2 ± 0.5 mmol‐H2/day Lreactor), respectively, corresponding to 12% of the chemical oxygen demand (COD) from sugars. Additionally, it was found that toxic compounds, furfural and hydroxymethylfurfural (HMF), contained in the hydrolysate were effectively degraded in the CSTR, and their concentrations were reduced from 50 and 28 mg/L, respectively, to undetectable concentrations in the effluent. Phylogenetic analysis of the mixed culture revealed that members involved hydrogen producers in both batch and CSTR reactors were phylogenetically related to the Caldanaerobacter subteraneus, Thermoanaerobacter subteraneus, and Thermoanaerobacterium thermosaccharolyticum. Biotechnol. Bioeng. 2010;105: 899–908. © 2009 Wiley Periodicals, Inc.
Micro‐Raman spectroscopy of algae: Composition analysis and fluorescence background behavior
Authors: Huang Y.Y. , Beal C.M. , Cai W.W. , Ruoff R.S. , Terentjev E.M. 
Published: December 2009

AbstractPreliminary feasibility studies were performed using Stokes Raman scattering for compositional analysis of algae. Two algal species, Chlorella sorokiniana (UTEX #1230) and Neochloris oleoabundans (UTEX #1185), were chosen for this study. Both species were considered to be candidates for biofuel production. Raman signals due to storage lipids (specifically triglycerides) were clearly identified in the nitrogen‐starved C. sorokiniana and N. oleoabundans, but not in their healthy counterparts. On the other hand, signals resulting from the carotenoids were found to be present in all of the samples. Composition mapping was conducted in which Raman spectra were acquired from a dense sequence of locations over a small region of interest. The spectra obtained for the mapping images were filtered for the wavelengths of characteristic peaks that correspond to components of interest (i.e., triglyceride or carotenoid). The locations of the components of interest could be identified by the high intensity areas in the composition maps. Finally, the time evolution of fluorescence background was observed while acquiring Raman signals from the algae. The time dependence of fluorescence background is characterized by a general power law decay interrupted by sudden high intensity fluorescence events. The decreasing trend is likely a result of photo‐bleaching of cell pigments due to prolonged intense laser exposure, while the sudden high intensity fluorescence events are not understood. Biotechnol. Bioeng. 2010;105: 889–898. © 2009 Wiley Periodicals, Inc.
Aerated Shewanella oneidensis in continuously fed bioelectrochemical systems for power and hydrogen production
Authors: Rosenbaum Miriam , Cotta Michael A. , Angenent Largus T. 
Published: December 2009

AbstractWe studied the effects of aeration of Shewanella oneidensis on potentiostatic current production, hydrogen production in a microbial electrolysis cell, and electric power generation in a microbial fuel cell (MFC). The potentiostatic performance of aerated S. oneidensis was considerably enhanced to a maximum current density of 0.45 A/m2 or 80.3 A/m3 (mean: 0.34 A/m2, 57.2 A/m3) compared to anaerobically grown cultures. Biocatalyzed hydrogen production rates with aerated S. oneidensis were studied within the applied potential range of 0.3–0.9 V and were highest at 0.9 V with 0.3 m3 H2/m3 day, which has been reported for mixed cultures, but is ∼10 times higher than reported for an anaerobic culture of S. oneidensis. Aerated MFC experiments produced a maximum power density of 3.56 W/m3 at a 200‐Ω external resistor. The main reasons for enhanced electrochemical performance are higher levels of active biomass and more efficient substrate utilization under aerobic conditions. Coulombic efficiencies, however, were greatly reduced due to losses of reducing equivalents to aerobic respiration in the anode chamber. The next challenge will be to optimize the aeration rate of the bacterial culture to balance between maximization of bacterial activation and minimization of aerobic respiration in the culture. Biotechnol. Bioeng. 2010;105: 880–888. © 2009 Wiley Periodicals, Inc.
Modeling predation processes in activated sludge
Authors: Ni Bing‐Jie , Rittmann Bruce E. , Yu Han‐Qing 
Published: December 2009

AbstractPredation by protozoa plays an important role in activated sludge. In this work, the kinetics for protozoan predation of active bacteria (XH), extracellular polymeric substances (EPS), and intracellular storage products (XSTO) are added into a previously expanded unified model that describes the dynamics of EPS, XSTO, and soluble microbial products (SMP). The new biomass growth–decay–predation model describes the biomass fractions, soluble organic components, and oxygen‐uptake rates considering EPS, XSTO, and predators during dynamic operating conditions in activated sludge. Model calibration using batch experimental data provides the new parameter values for predation processes and insights into mechanisms involving predators. The calibrated value of the maximum specific growth rate for the predators is much slower than for the bacteria, confirming that predators are relatively slow growers. However, the predators and bacteria have similar decay rates and dissolved oxygen affinities. Model testing with results independent of the calibration data shows two things. First, the model and calibrated parameters accurately simulate the independent results when predators are present. Second, eliminating predation by high salinity significantly lowers the OUR, and this is captured by the model. Biotechnol. Bioeng. 2010;105: 1021–1030. © 2009 Wiley Periodicals, Inc.
Variations of the piriformis and sciatic nerve with clinical consequence: A review
Authors: Smoll Nicolas Roydon 
Published: December 2009

AbstractThe deep gluteal region is often encountered when performing injections, when performing surgery such as total hip replacements, or diagnosing problems of this region or lower limbs using clinical or imaging techniques. Previously, the prevalence figures of piriformis and sciatic nerve anomalies have ranged from 1.5 to 35.8% in dissected specimens. This study systematically reviews and meta‐analyses the prevalence of piriformis and sciatic nerve anomalies in humans using previously published literature. A further review is conducted regarding the anatomical abnormalities present in surgical case series of procedures for patients suffering from piriformis syndrome. After pooling the results of 18 studies and 6,062 cadavers, the prevalence of the anomaly in cadavers was 16.9%; 95% confidence interval (CI) 16.0–17.9%. The prevalence of the piriformis and sciatic nerve anomaly in the surgical case series was 16.2%, 95% CI: 10.7–23.5%. The difference between the two groups was not found to be significant 0.74%; 95% CI: −5.66 to 7.13; P = 0.824. Because of the high likelihood of an anomaly being present in a patient, clinicians and surgeons should be aware of the potential complications this anomaly may have on medical or surgical interventions. Furthermore, because the prevalence of the anomaly in piriformis syndrome patients is not significantly different from what is thought to be a normal population, it indicates that this anomaly may not be as important in the pathogenesis of piriformis syndrome as previously thought. Clin. Anat. 23:8–17, 2010. © 2009 Wiley‐Liss, Inc.
The dialogical self in a cultural contact zone: Exploring the perceived ‘cultural correction’ function of schooling
Authors: O'Sullivan‐Lago Ria , de Abreu Guida 
Published: December 2009

AbstractThis paper discusses a qualitative study that explores the impact the development of a cultural contact zone has upon identity processes in the Dialogical Self. The analysis draws upon interviews with Irish nationals, immigrants and asylum seekers in a new cultural contact zone. The findings illustrate uncertainty experienced as a result of immigration, suggesting that the development of the contact zone caused cultural discontinuity. The individuals' uncertainty for their cultural identities' future viability demanded the development of identity strategies to maintain continuity with their perceived cultural future, where they were faced with cultural others. Identity repositionings and a strategy to maintain continuity will be explored in the current paper. The Irish and asylum seeker participants' unprompted focus on schooling will be explored as a continuity strategy. The participants constructed schooling as a tool for the ‘cultural correction’ of migrant children and a means for the assimilation of migrants into the Irish community. The paper discusses the function of this strategy for the two groups, and the theoretical integration of cultural level processes in the theory of the Dialogical Self. Copyright © 2009 John Wiley & Sons, Ltd.
The Effect of Heavy Atoms on Photoinduced Electron Injection from Nonthermalized and Thermalized Donor States of MII–Polypyridyl (M=Ru/Os) Complexes to Nanoparticulate TiO2 Surfaces: An Ultrafast Time‐Resolved Absorption Study
Authors: Verma Sandeep , Kar Prasenjit , Das Amitava , Palit Dipak K. , Ghosh Hirendra N. 
Published: December 2009

AbstractWe have synthesized ruthenium(II)– and osmium(II)–polypyridyl complexes ([M(bpy)2L]2+, in which M=OsII or RuII, bpy=2,2′‐bipyridyl, and L=4‐(2,2′‐bipyridinyl‐4‐yl)benzene‐1,2‐diol) and studied the interfacial electron‐transfer process on a TiO2 nanoparticle surface using femtosecond transient‐absorption spectroscopy. Ruthenium(II)‐ and osmium(II)‐based dyes have a similar molecular structure; nevertheless, we have observed quite different interfacial electron‐transfer dynamics (both forward and backward). In the case of the RuII/TiO2 system, single‐exponential electron injection takes place from photoexcited nonthermalized metal‐to‐ligand charge transfer (MLCT) states. However, in the case of the OsII/TiO2 system, electron injection takes place biexponentially from both nonthermalized and thermalized MLCT states (mainly 3MLCT states). Larger spin–orbit coupling for the heavier transition‐metal osmium, relative to that of ruthenium, accounts for the more efficient population of the 3MLCT states in the OsII‐based dye during the electron‐injection process that yields biexponential dynamics. Our results tend to suggest that appropriately designed OsII–polypyridyl dye can be a better sensitizer molecule relative to its RuII analogue not only due to much broader absorption in the visible region of the solar‐emission spectrum, but also on account of slower charge recombination.
Structural Diversity in the Self‐Assembly of Pseudopeptidic Macrocycles
Authors: Alfonso Ignacio , Bru Miriam , Burguete M. Isabel , García‐Verdugo Eduardo , Luis Santiago V. 
Published: December 2009

AbstractThe self‐assembling abilities of several pseudopeptidic macrocycles have been thoroughly studied both in the solid (SEM, TEM, FTIR) and in solution (NMR, UV, CD, FTIR) states. Detailed microscopy revealed large differences in the morphology of the self‐assembling micro/nanostructures depending on the macrocyclic chemical structures. Self‐assembly was triggered by the presence of additional methylene groups or by changing from para to meta geometry of the aromatic phenylene backbone moiety. More interestingly, the nature of the side chain also plays a fundamental role in some of the obtained nanostructures, thus producing structures from long fibers to hollow spheres. These nanostructures were obtained in different solvents and on different surfaces, thus implying that the chemical information for the self‐assembly is contained in the molecular structure. Dilution NMR studies (chemical shift and self‐diffusion rates) suggest the formation of incipient aggregates in solution by a combination of hydrogen‐bonding and π–π interactions, thus implicating amide and aryl groups, respectively. Electronic spectroscopy further supports the π–π interactions because the compounds that lead to fibers show large hypochromic shifts in the UV spectra. Moreover, the fiber‐forming macrocycles also showed a more intense CD signature. The hydrogen‐bonding interactions within the nanostructures were also characterized by attenuated total‐reflectance FTIR spectroscopy, which allowed us to monitor the complete transition from the solution to the dried nanostructure. Overall, we concluded that the self‐assembly of this family of pseudopeptidic macrocycles is dictated by a synergic action of hydrogen‐bonding and π–π interactions. The feasibility and geometrical disposition of these interactions finally render a hierarchical organization, which has been rationalized with a proposal of a model. The understanding of the process at the molecular level has allowed us to prepare hybrid soft materials.
ChemInform Abstract: Effect of Counterions on the Structure and Stability of Aqueous Uranyl(VI) Complexes. A First‐Principles Molecular Dynamics Study.
Authors: Buehl Michael , Schreckenbach Georg , Sieffert Nicolas , Wipff Georges 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Understanding the p‐Type Conduction Properties of the Transparent Conducting Oxide CuBO2: A Density Functional Theory Analysis.
Authors: Scanlon David O. , Walsh Aron , Watson Graeme W. 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Palladium‐Catalyzed Asymmetric Mannich‐Type Reactions of α‐Cyanoketones with N‐Boc Aldimines.
Authors: Kim Eun Jin , Kang Young Ku , Kim Dae Young 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Asymmetric Addition of Diethylzinc to Aldehydes Catalyzed by a Camphor‐Derived β‐Amino Alcohol.
Authors: Wu Zhi‐Long , Wu Hsyueh‐Liang , Wu Ping‐Yu , Uang Biing‐Jiun 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Regio‐ and Stereoselectivity on the α‐Aryl‐δ‐epoxynitrile Anionic Cyclization Reactions: Modulation Towards a 5‐endo or 4‐exo Process.
Authors: Lujan‐Montelongo Jesus Armando , Vazquez‐Sanchez Adrian , Avila‐Zarraga Jose Gustavo 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Acid‐Catalyzed Cascade Reactions of Arylvinylcyclopropenes with Acetals and Aldehydes for the Construction of Different Aromatic Systems.
Authors: Zhu Zhi‐Bin , Wei Yin , Shi Min 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Solvent‐Free Friedel—Crafts Cyclization with Trichloroacetic Anhydride.
Authors: Andrews Ben , Bullock Kae , Condon Shannon , Corona John , Davis Roman , Grimes John , Hazelwood Andrew , Tabet Elie 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Hydrogenation of β‐N‐Substituted and β‐N,N‐Disubstituted Enamino Esters in the Presence of Iridium(I) Catalyst.
Authors: Hebbache Hania , Hank Zakia , Bruneau Christian , Renaud Jean‐Luc 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Enantioselective Hydrogenation of N—H Imines.
Authors: Hou Guohua , Gosselin Francis , Li Wei , McWilliams J. Christopher , Sun Yongkui , Weisel Mark , O'Shea Paul D. , Chen Cheng‐yi , Davies Ian W. , Zhang Xumu 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Highly Enantioselective Henry Reaction Catalyzed by Chiral Tridentate Heteroorganic Ligands.
Authors: Rachwalski Michal , Lesniak Stanislaw , Sznajder Ewelina , Kielbasinski Piotr 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Palladium‐Catalyzed Mizoroki—Heck Reaction of Allyl Aryl Ethers with Aryl Iodides Using Phosphine‐Free Hydrazone Ligands.
Authors: Mino Takashi , Shindo Hiroaki , Kaneda Tomoko , Koizumi Tomoko , Kasashima Yoshio , Sakamoto Masami , Fujita Tsutomu 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Catalytic Enantioselective Conjugate Addition of Fluorobis(phenylsulfonyl)methane to Enals: Synthesis of Chiral Monofluoromethyl Compounds.
Authors: Zhang Shilei , Zhang Yinan , Ji Yafei , Li Hao , Wang Wei 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Tropos Ligands in Asymmetric Rhodium(I)‐Catalyzed Addition of Arylboronic Acids to Enones: How a Tunable Coordination Gives Different Reaction Products.
Authors: Facchetti Sarah , Cacallini Irene , Funaioli Tiziana , Marchetti Fabio , Juliano Anna 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Cross‐Aldol Condensation of Cycloalkanones and Aromatic Aldehydes in the Presence of Nanoporous Silica‐Based Sulfonic Acid (SiO2—Pr—SO3H) under Solvent‐Free Conditions.
Authors: Mohammadi Ziarani Ghodsi , Badiei Alireza , Abbasi Alireza , Farahani Zahra 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Design, Synthesis and Hypolipidemic Activity of Novel 2‐(Naphthalen‐2‐yloxy)propionic Acid Derivatives as Desmethyl Fibrate Analogues.
Authors: Idrees Gamal A. , Aly Omar M. , Abuo‐Rahma Gamal El‐Din A. A. , Radwan M. F. 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis and Characterization of α‐Bromo Chalcone Derivatives.
Authors: Budak Yakup , Ceylan Mustafa 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Gas‐Phase Synthesis of N‐Unsubstituted 3‐Hydroxypyrroles and 1H‐Pyrrol‐3(2H)‐ones.
Authors: Hill Lawrence , Hunter Gordon A. , Imam S. Haider , McNab Hamish , O'Neill William J. 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Trisoxazoline/Cu(II)‐Catalyzed Asymmetric Intramolecular Friedel—Crafts Alkylation Reaction of Indoles.
Authors: Zhou Jiao‐Long , Ye Meng‐Chun , Sun Xiu‐Li , Tang Yong 
Published: December 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.