bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Marine Glycolipids
Authors: FATTORUSSO E. , MANGONI A. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Methods of Description of the Polycondensation Kinetics and the Structures of the Polymers Formed
Authors: IRZHAK V. I. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: An Overview of Fullerene Chemistry
Authors: SAMAL S. , SAHOO S. K. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Selective Heterogeneously Catalyzed Hydrogenations
Authors: AUGUSTINE R. L. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Ultrathin Magnetic Structures ‐ Magnetism and Electronic Properties
Authors: BLAND J. A. C. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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.
Robert Havemann. Chemiker im Widerstand
Authors: Neubauer Alfred 
Published: August 2010

AbstractIm außergewöhnlichen Leben des deutschen Physikochemikers und Philosophen Robert Havemann nimmt seine Widerstandstätigkeit in der Zeit des Nationalsozialismus und seine damit verbundene Verurteilung zum Tode im Dezember 1943 einen besonderen Rang ein. Vorgesetzte, Freunde und Havemann selbst führten einen erfolgreichen Kampf, um die Vollstreckung des Urteils zu verhindern. Durch die Deklarierung seiner Forschungsarbeiten als besonders kriegswichtig kam es sogar zur Einrichtung eines eigenen Forschungslabors für Havemann im Zuchthaus Brandenburg‐Görden. Unter der Maske des einsichtigen und reumütigen Gefangenen setzte er auch in der Haft seinen Widerstand gegen das NS‐Regime bis zu seiner Befreiung durch die Rote Armee im April 1945 fort.
Mein kleiner grüner Kaktus. Licht in der Dunkelreaktion
Authors: Streller Sabine , Roth Klaus 
Published: August 2010

AbstractPflanzen nehmen Kohlendioxid auf und wandeln es in Kohlenhydrate um. Wie schaffen es Pflanzen, das extrem inaktive Gas zur Reaktion zu bringen? Wie sieht der CO2‐Akzeptor aus und wie der Katalysator? Verfolgen wir das Schicksal eines einzelnen Kohlenstoffatoms vom CO2 bis zu den Kohlenhydraten. Es ist ein Weg voller Überraschungen und am Ende werden wir respektvoll erkennen, dass Pflanzen wirklich brillante Chemiker sind.
New Anacardic Acid‐Inspired Benzamides: Histone Lysine Acetyltransferase Activators
Authors: Souto José A. , Benedetti Rosaria , Otto Katharina , Miceli Marco , Álvarez Rosana , Altucci Lucia , de Lera Angel R. 
Published: August 2010

AbstractA series of N‐(4‐cyano‐3‐trifluoromethyl‐phenyl)‐2‐ethoxy‐6‐alkyl (and alkenyl) benzamides related to the anacardic acid derivative CTPB have been prepared from 2,6‐dihydroxybenzoic acid with a Suzuki coupling and addition of the anion of 4‐cyano‐3‐trifluoromethylphenylamine to a benzodioxinone as the key steps. In U937 cells, these analogues, in particular 7 c, 7 d, 7 f and 7 j, induced cell‐cycle arrest in the G1 phase, caused apoptosis in about 20 % of the cells, and increased the acetylation levels of H3. These activities correlate with the enzymatic activation of histone lysine acetyltransferases (KATs): CBP and PCAF.
Role of fibroblast growth factor signaling during proepicardium formation in the chick embryo
Authors: Torlopp Angela , Schlueter Jan , Brand Thomas 
Published: August 2010

AbstractThe proepicardium forms at the venous pole of the embryonic heart and gives rise to several cell types of the mature heart. We investigated the role of fibroblast growth factors (FGFs) during proepicardium formation in the chick embryo. Several FGF ligands (Fgf2, Fgf10, and Fgf12) and receptors (Fgfr1, Fgfr2, and Fgfr4) are expressed in the proepicardium. Experimental modulation of FGF signaling in explant cultures affected cell proliferation and survival. In contrast, expression of Tbx18, Wt1, or Tbx5 were unaffected by FGF inhibition. In agreement with the explant data, villous outgrowth of the proepicardium was strongly impaired by FGF inhibition in vivo, however Tbx18 expression was maintained. These data suggest that during proepicardium formation, FGF ligands act as autocrine or paracrine growth factors to prevent apoptosis, maintain proliferation, and to promote villous outgrowth of the proepicardium. However, FGF is not involved in the induction or maintenance of proepicardium‐specific marker gene expression. Developmental Dynamics 239:2393–2403, 2010. © 2010 Wiley‐Liss, Inc.
The Use of N‐Type Ligands in the Enantioselective Liquid–Liquid Extraction of Underivatized Amino Acids
Authors: Verkuijl Bastiaan J. V. , Schoonen Anne K. , Minnaard Adriaan J. , de Vries Johannes G. , Feringa Ben L. 
Published: August 2010

AbstractThe first palladium based extraction system using chiral N‐based ligands in the enantioselective liquid–liquid extraction (ELLE) of underivatized amino acids, is presented. The system shows the highest selectivity for the ELLE of methionine with metal complexes as hosts reported to date. Furthermore, the host can be prepared in situ from commercially available compounds. The dependency of the system on parameters such as pH, organic solvent, and temperature has been established. The intrinsic selectivity was deduced by determination of the association constants of the palladium complex with the tryptophan enantiomers.
Direct Electrochemistry and Electrocatalysis of Myoglobin Immobilized on Graphene‐CTAB‐Ionic Liquid Nanocomposite Film
Authors: Liao Hong‐gang , Wu Hong , Wang Jun , Liu Jun , Jiang Yan‐Xia , Sun Shi‐Gang , Lin Yuehe 
Published: August 2010

AbstractThis paper describes the direct electrochemistry and electrocatalysis of myoglobin immobilized on graphene‐cetylramethylammonium bromide (CTAB)‐ionic liquid nanocomposite film on a glassy carbon electrode. The nanocomposite was characterized by transmission electron microscopy, scanning electron microscopy, X‐ray photoelectron spectroscopy, and electrochemistry. It was found that the high surface area of graphene was helpful for immobilizing more proteins and the nanocomposite film could provide a favorable microenvironment for MB to retain its native structure and activity and to achieve reversible direct electron transfer reaction at an electrode. The ionic liquid may play dual roles here: it keeps the protein's activity and improves stability of the nanocomposite film; it also serves as a binder between protein and electrode, therefore, enhancing the electron transfer between the protein and the electrode. The nanocomposite films also exhibit good stability and catalytic activities for the electrocatalytic reduction of H2O2.
A Voltammetric Study of the Interaction Between Cucurbit[6]uril and Divalent Metal Ions
Authors: Blanco Elías , Quintana Carmen , Hernández Pedro , Hernández Lucas 
Published: August 2010

AbstractCucurbit[6]uril is a macrocyclic, pumpkin‐shaped compound that consists of six glycoluril units joined by methylene groups. Herein we present an electrochemical study of the interaction between cucurbit[6]uril and the metallic species [Cd(H2O)6]2+, [Cd(NH3)4]2+, [Zn(H2O)6]2+, [Zn(NH3)4]2+, [Co(H2O)6]2+, [Mn(H2O)6]2+ and [Ni(H2O)6]2+, under competitive conditions, using a hanging drop mercury electrode. The formation of cucurbit[6]uril‐metal complexes of stoichiometries 1 : 2 for cadmium, 1 : 3 and 1 : 4 for zinc, 1 : 4 for cobalt and nickel, and 1 : 5 for manganese was observed.
The Mediated Detection of Hydrogen Sulfide in Room Temperature Ionic Liquids
Authors: O'Mahony Aoife M. , Compton Richard G. 
Published: August 2010

AbstractThe detection of H2S was studied using several mediators in room temperature ionic liquids (RTILs) at a microelectrode. Each mediator was characterised voltammetrically, and H2S was added to observe if any mediation took place. A successful mediator was 3,5‐tert‐butyl‐obenzoquinone. Cyclic voltammetry was carried out in [C2mim][NTf2]. A reductive wave was observed and attributed to the two‐electron reduction of the mediator. No oxidative signal was observed. H2S was flowed through the system. Cyclic voltammograms showed a decrease in the reductive wave of the mediator and the onset of an oxidative signal due to the reaction between the mediator and H2S to form an adduct. This reaction is reversible and on purging the system with N2, the original reductive signal of the mediator was recovered.
The evaluation of grain shear stress from experiments in a pebble‐bedded flume
Authors: Petit Francois 
Published: August 2010

AbstractInitial experiments were conducted in a flat‐bottomed flume with pebbles (median diameter slightly below 20 mm), with a view to test the validity of the methods which permit differentiation between shear stress due to grain resistance (τ″) and that due to bedform resistance (τ″). It is clearly confirmed that τ′ represents the total shear stress (τ). The method of Laursen (1958) is appropriate for evaluation of grain shear stress in the case of pebbly beds. Indeed the ratio τ′ is close to 1, except when the dimensionless flow depth (d/D50) is less than 4. A close relationship exists between the grain shear stress and the shear calculated from friction velocities.A second series of experiments was then carried out in the same flume, after creating differences in bedform (alternating riffles and pools). The ratio τ′/τ produced by Laursen's method represents on average 0.40. The relationship between these grain shear stresses and the shear stresses calculated from shear velocities is relatively good here as well, and is similar in presentation to that established in the case of flat bed. Finally, as confirmation of the adequacy of Laursen's method under the same initial conditions of bottom slope and discharge, the grain shear stress for an undulating bed is very close to the total shear stress of a flat bed.
Subsurface water flow on a slope in the loamy region of Belgium
Authors: Michiels P. , Hartmann R. , De Strooper E. 
Published: August 2010

AbstractIn order to evaluate the different water flow processes in a silt loam soil susceptible to erosion (slope 16 per cent), a hydrological study was started in 1987 on a standard bare erosion plot under conventional tillage.Tensiometer sets were used to determine the soil water potential status along a 20m transect during the growing season. From these measurements, hydralic head profiles were constructed and the depth of the saturated zone was derived.Through daily measurements, different directions of water flow were observed within the soil profile and within time, and temporary and permanent saturated zones could be recognized along the studied transect. During rainy periods, a subsurface water flow was observed in a saturated zone just below the soil surface. It appears that the presence of a shallow compacted plough pan can cause this temporary perching of water.
Über boreale Grünlandgesellschaften
Authors: Passarge Harro 
Published: August 2010

AbstractNach knapp skizzierten standörtlichen Bedingungen des Untersuchungsgebietes werden die beobachteten Pflanzengesellschaften der Feucht‐ und Frischwiesen sowie der Weiderasen beschrieben. Der Literaturvergleich stellt Gemeinsames und Besonderes der gefundenen Vegetationseinheiten heraus. Als neue Assoziationen werden abgegrenzt: Trollio‐Cirsietum heterophylli, Tormentillo‐Deschampsietum‐caespitosae, Caro‐Festucetum pratensis, Galio‐Agrostietum tenuis, Phleo‐Trifolietum repentis (vgl. Tab. 1–4). Merkliche floristische und coenologische Unterschiede gegenüber den Molinietalia‐ und Arrhenatheretalia verlangen innerhalb der Molinio‐Arrhenatheretea eine Abtrennung der borealen Wiesen in der eigenen Ordnung Alchemillo‐Deschampsietalia caespitosae mit drei Verbänden (s. S. 541).
Ultrastructural studies of the ovary wall and pericarp of Asclepias curassavica L. II. Mesocarp development With 3 Figures
Authors: Kuriachen P. M. , Thomas Vinoth , Dave Yash 
Published: August 2010

AbstractThe present article describes various subcellular changes occurring during development and maturation of the mesocarp of Asclepias curassavica follicle. The ground tissue of the ovary wall consists of dense cytoplasm containing cell organelles like mitochondria, endoplasmic reticulum, chloroplast, ribosomes etc. Mesocarp developing from the ground tissue is differentiated into three zones on the basis of cell shape and degree of vacuolation. Chloroplasts possess starch grains which have a central electron translucent area and a peripheral electron opaque boundary. In the mature fruit the mesocarpic cells are highly vacuolated with a peripheral layer of cytoplasm. The cytoplasm seems to be loose or less denser than that of the developing mesocarpic cells, but contains all the cell organelles that are present in the developing mesocarp.
Effects of a rape awareness program on college women: increasing bystander efficacy and willingness to intervene
Authors: Foubert John D. , Langhinrichsen‐Rohling Jennifer , Brasfield Hope , Hill Brent 
Published: August 2010

AbstractAn experimental study evaluated the efficacy of a sexual assault risk‐reduction program on 279 college women that focused on learning characteristics of male perpetrators and teaching bystander intervention techniques. After seeing The Women's Program, participants reported significantly greater bystander efficacy and significantly greater willingness to help than before seeing the program. Participants outperformed a control group. Rape myth acceptance also declined among program participants. Implications for rape awareness programming are discussed. © 2010 Wiley Periodicals, Inc.
Viewing community as responsibility as well as resource: deconstructing the theoretical roots of psychological sense of community
Authors: Nowell Branda , Boyd Neil 
Published: August 2010

AbstractThe field of scholarship surrounding the construct of psychological sense of community (PSOC) has been dominated by first‐order learning processes attending to issues of measurement and prediction of the four‐dimensional framework proposed by McMillan and Chavis (1976). This article seeks to contribute to the conceptual development of PSOC by clarifying the second‐order assumptions of PSOC as it is represented in prevailing conception and measurement. We introduce human needs theory as a macro framework for representing the definition and study of PSOC to date. Second, we illuminate the limitations of a purely needs theory perspective of PSOC and propose the value of exploring alternative theoretically grounded perspectives. Third, we offer an alternative theoretical base for PSOC—a sense of community as responsibility—and highlight how this alternative theoretical lens can suggest new models for understanding the dynamic between PSOC, psychological well‐being, and community engagement. © 2010 Wiley Periodicals, Inc.
Participation in extracurricular activities and emotional and behavioral adjustment in middle childhood in Spanish Boys and Girls
Authors: Molinuevo Beatriz , Bonillo Albert , Pardo Yolanda , Doval Eduardo , Torrubia Rafael 
Published: August 2010

AbstractThis study examined the concurrent relationship between participation in extracurricular activities and externalizing and internalizing problems and social school behavior in a Spanish community sample, separately for boys (n=439) and girls (n=428), enrolled in 2nd, 4th, or 6th grades. Weekly participation in extracurricular activities was related to better emotional and behavioral adjustment and social competence. Overall, the relations were low and different according to gender, type of activity, and informant. Better adjustment was more related to participation in sports activities in boys and to participation in nonsports activities in girls. Size effect was higher for girls and decreased for both boys and girls when parental education and parenting practices were considered. Findings supported previous results obtained in American adolescents. © 2010 Wiley Periodicals, Inc.
The effect of hepatocyte growth factor on the initial stages of mouse follicle development
Authors: Guglielmo M.C. , Ricci G. , Catizone A. , Barberi M. , Galdieri M. , Stefanini M. , Canipari R. 
Published: August 2010

AbstractInteractions between theca and granulosa cells of the follicle are critical for the coordination of ovarian follicle development. The cell–cell interactions are mediated through the local production and actions of a variety of factors. The current study is designed to investigate the expression of Hgf and its receptor, c‐Met, in the mouse ovary during in vivo folliculogenesis. We found that Hgf and c‐Met mRNAs were already expressed in 2‐day‐old ovaries, and that, while c‐Met levels remained constant until 22‐day‐old, Hgf levels slightly but not significantly increased with age. The expression of Hgf mRNA in theca/interstitial cells was higher than in granulosa cells in 22‐day‐old ovaries. Immunohistochemistry analysis confirmed the expression pattern demonstrated by RT‐PCR. We investigated the role of hepatocyte growth factor (HGF) at the beginning of mouse folliculogenesis and its possible interaction with kit ligand (KL). Interestingly, both KL and HGF were able to increase the expression of each other, creating a positive feedback loop. In the presence of HGF, we observed an increase of granulosa cell proliferation and an increase in the number of pre‐antral and early antral follicles in ovary organ cultures. We also observed a significant increase in the diameters of follicles in individual follicle cultures. Moreover, HGF stimulated the expression of the FSH receptors, both in the whole ovary and in isolated pre‐antral follicle cultures. Based on the data presented, we concluded that HGF exerts multiple levels of control over follicular cell functions, which collectively enable the progression of follicular development. J. Cell. Physiol. 226: 520–529, 2011. © 2010 Wiley‐Liss, Inc.
Bax is essential for Drp1‐mediated mitochondrial fission but not for mitochondrial outer membrane permeabilization caused by photodynamic therapy
Authors: Wu Shengnan , Zhou Feifan , Zhang Zhenzhen , Xing Da 
Published: August 2010

AbstractBcl‐2 family proteins are critical for the regulation of apoptosis, with the pro‐apoptotic members Bax essential for the release of cytochrome c from mitochondria in many instances. However, we found that Bax was activated after mitochondrial depolarization and the completion of cytochrome c release induced by photodynamic therapy (PDT) with the photosensitizer Photofrin in human lung adenocarcinoma cells (ASTC‐a‐1). Besides, knockdown of Bax expression by gene silencing had no effect on mitochondrial depolarization and cytochrome c release, indicating that Bax makes no contribution to mitochondrial outer membrane permeabilization (MOMP) following PDT. Further study revealed that Bax knockdown only slowed down the speed of cell death induced by PDT, indicating that Bax is not essential for PDT‐induced apoptosis. The fact that Bax knockdown totally inhibited the mitochondrial accumulation of dynamin‐related protein (Drp1) and Drp1 knockdown attenuated cell apoptosis suggest that Bax can promote PDT‐induced apoptosis through promoting Drp1 activation. Besides, Drp1 knockdown also failed to inhibit PDT‐induced cell death finally, indicating that Bax‐mediated Drp1's mitochondrial translocation is not essential for PDT‐induced cell apoptosis. On the other hand, we found that protein kinase Cδ (PKCδ), Bim L and glycogen synthase kinase 3β (GSK3β) were activated upon PDT treatment and might contribute to the activation of Bax under the condition. Taken together, Bax activation is not essential for MOMP but essential for Drp1‐mediated mitochondrial fission during the apoptosis caused by Photofrin‐PDT. J. Cell. Physiol. 226: 530–541, 2011. © 2010 Wiley‐Liss, Inc.
MRI‐guided brain tumor cryoablation in a rabbit model
Authors: Song Jiqing , Li Chengli , Wu Lebin , Liu Ming , Lv Yubo , Xie Guohua , Li Lei , Blanco Sequeiros Roberto 
Published: August 2010

AbstractPurposeTo report the results of an animal trial exploring the feasibility of minimally invasive MR imaging‐guided rabbit brain tumor cryoablation with an argon‐based cryo‐unit.Materials and MethodsVX2 tumor segments (0.96 × 0.96 × 50mm) were implanted into parietal lobes of 26 New Zealand white rabbits. Seventeen rabbits were treated with cryoablation. Six rabbits were not treated and formed a control group. Cryoablation was achieved with a MR‐compatible cryoablation unit using 1.47‐mm cryoprobes in an open 0.23 Tesla (T) MRI scanner. The therapeutic response was evaluated with follow‐up MRI and the corresponding histopathology. A 3.0T MRI scanner was used for preoperative and postoperative follow‐up imaging. Posttreatment imaging with subsequent endpoints was performed at 3, 7, 14, and 60 days after the treatment.ResultsOf 17 rabbits, 6 died on the first postoperative day. Histopathology revealed coagulation necrosis in samples from the 3rd, 7th, and 14th day, and reactive changes at 60 days, these findings were consistent with MRI. The longest survival time in the treatment group, 60 days (n = 2), was considerably longer than the survival times in control group.ConclusionSuccessful rabbit brain tumor cryoablation can be achieved using argon‐based cryodevice under MRI guidance. The complication rate in this series was relatively high. J. Magn. Reson. Imaging 2009;29:545–551. © 2009 Wiley‐Liss, Inc.
Terraced fills of Pleistocene and Holocene age in the Rheidol Valley, Wales
Authors: Macklin Mark G. , Lewin John 
Published: August 2010

AbstractThe legacy of repeated Pleistocene glaciations has endowed many Welsh river valleys with locally thick successions of glacial and alluvial sediments. Investigations of a well‐preserved flight of terraced sediments with good exposures at Capel Bangor, on the Afon Rheidol, mid‐Wales, has allowed its Quaternary valley fill stratigraphy to be examined in detail. Study has revealed five terraced fills consisting of seven distinct sedimentary units. These range from Late Devensian ice‐contact and ice‐marginal deposits, to Holocene high‐sinuosity stream sediments with episodes of man‐induced accelerated deposition of fine‐grained alluvium, and to aggradation and subsequent incision associated with historic metal mining. Examination of general sedimentary properties (e.g., granulometry, sedimentary structures, terrace surface morphology) show both differences in the pattern and controls of deposition and also progressive changes over Late Devensian and Holocene times. The sediments of the Rheidol Valley record the response and subsequent recovery of a drainage basin to glaciation, and the increasing influence of man on sediment yields, channel processes, and sediment quality.