bluuebunny/crossref_metadata_2025_split huggingface dataset:
Guano minerals from Murra-el-elevyn Cave
Western Australia
Authors: Bridge P. J. 
Published: December 2006

Summary
Biphosphammite, ammonian
KH2PO4,
syngenite, aphthitalite, monetite, hannayite,
whitloekite, apatite and minor gypsum, taylorite,
brushite, mirabilite, guanine, and unidentified
compounds form crystalline crusts on the walls and
floors of a chamber of Murra-el-elevyn Cave,
Cocklebiddy, Nullarbor Plain, Western Australia.
The minerals are derived from the interaction of
bat urine, droppings, and limestone. Analyses for
CaO, MgO, Na2O,
K2O,
SO3,
P2O5,
CO2,
NH3,
H2O-,
total N, and ignition loss are given. High
K2O and low total N figures
are characteristic of the analyses.
The crystallization history and mechanism of emplacement of the western part of the Galway Granite, Connemara, Western Ireland
Authors: Leake Bernard E. 
Published: December 2006

SummaryThe Galway Granite often has a highly siliceous aphyric alkali granite at the margin, followed inwards by a K-feldspar phenocrystic adamellite and then a steeply layered granodiorite. This previously puzzling arrangement, which seemed to conflict with the necessity to cool from the periphery and crystallize the most basic granite at the margin, is examined by a traverse of chemically analysed rocks and biotites. The Mg/(Mg+Fe+Mn) values indicate that the granodiorite probably crystallized from the outside inwards. The marginal aphyric granite crystallized from the acid residuum in the nearly solid adamellite. This was drawn out of the adamellite by blocks of country rock falling into the adamellite and creating a zone of rarefaction behind them. This also explains the absence of a chilled margin and the aplitic texture and mineralogy of the aphyric granite. The adamellite largely accumulated by crystal settling with gravity grading but the granodiorite crystallized in vertical layers during upward vertical movements of the magma that tipped up the gravity layering in the adamellite. Scattered microdioritic xenoliths are postulated to be disrupted dykes. Eighteen granite and twenty-seven biotite analyses are tabulated.
Vincentite, a new palladium mineral from south-east Borneo
Authors: Stumpfl E. F. , Tarkian M. 
Published: December 2006

SummaryVincentite, a new palladium mineral containing As, Sb, and Te, has been discovered in platinum-gold concentrates from the Riam Kanan River, SE. Borneo. It occurs as small grains (up to 40 µm) in iron-bearing platinum. In reflected light, vincentite is light brownish-grey and in some sections weakly anisotropic. Reflectance at 470, 546, 589, and 650 nm is 46·3–47·5, 49·2–52·8, 51·7–53·9, and 54·9–56·0, respectively. VHN15 = 494. Electron probe analysis has been performed on two grains, the compositions of which are (Pd5·32Pt0·68) (As0·90Sb0·48Te0·65) and (Pd5·17Pt0·83) (As0·89Sb0·70Te0·45) or, simplified, (Pd,Pt)3(As,Sb,Te). This is distinctly different from both arsenopalladinite, Pd5(As,Sb)2 with As > Sb as defined by Clark (1974), and mertieite, Pd5(Sb,As)2.The following lines have been observed in the powder pattern: 4·180, 3·950, 3·240, 2·750, 1·997, 1·749, 0·944. This cannot be matched by the patterns of arsenopalladinite, mertieite, isomertieite, stibiopalladinite, atheneïte, or synthetic Pd3As.The name is in honour of Prof. E. A. Vincent, of Oxford.
Sideritic concretions from the Westphalian of Yorkshire: a chemical investigation of the carbonate phase
Authors: Pearson M. J. 
Published: December 2006

SummaryThe carbonate phase of impure sideritic concretions from a sequence of argillaceous sediments from the Westphalian of Yorkshire has been analysed using an acid-dissolution technique and corrections allowing for the decomposition of non-carbonate minerals applied to obtain accurate compositional formulae.The siderites show considerable compositional variation, some containing Ca in excess of anticipated substitutional limits. Whilst these may be metastable it is suggested that coupled Mg-Ca substitution could provide an explanation.
Some high-pressure pyroxenes
Authors: Thompson R. N. 
Published: December 2006

SummaryMicroprobe analyses of Ca-rich pyroxenes crystallized in the melting ranges of a magnesian alkali basalt, a transitional basalt, an olivine tholeiite, a tholeiitic andesite, and an augite leucitite at pressures between 8 and 45 kb show complex variation. Ca-poor pyroxene precipitated only from the alkali basalt at pressures between 14 and 18 kb. Pyroxene falling near the Di-Hed join in the pyroxene quadilateral formed at all pressures and temperatures from the leucitite, whereas ‘Ca-rich’ pyroxene crystallizing from the other four compositions was Ca-poor augite to sub-calcic augite. TheliquidusCa-rich pyroxenes all show rising Al and Na and falling Ti with increasing pressure and temperature. Other elements show complex behaviour; all but the leucitite pyroxenes tend to make temporary excursions of solid solution towards Ca-poor pyroxene at intermediate pressures, returning to more Ca-rich compositions at high pressures. Atsub-liquidustemperatures Na and Ti consistently rise with fallingTat constantPand also with risingPat constantTin these pyroxenes. The behaviour of the other elements in these circumstances depends on the nature of the coexisting phases.Fe/Mg distribution between Ca-rich pyroxene and liquid, in the formhas a constant value of 0.29 for three separate bulk compositions at widely differing temperatures and pressures. Distribution coefficients for Mg and Fe between pyroxenes and coexisting garnets at high pressures are very similar to those found in garnet pyroxenite xenoliths from Oahu, Hawaii. Systematic shifts in the apparent stoichiometry (all Fe taken as Fe2+) of the augite leucitite pyroxenes are thought to indicate that they have considerable Fe3+contents at low pressure, decreasing asPrises. If so, they show a strong negative correlation between Na and Fe3+, which negates the customary practice of forming acmite before jadeite component when recalculating the analyses of high-pressure pyroxenes.The sets of pyroxenes crystallized from each composition show consistent trends when plotted on such diagrams as jadeitevsCa-Tschermak's ‘molecule’, which have often been used in attempts to discriminate natural pyroxenes formed in differingP-Tenvironments. However, these new data show clearly that the bulk chemistry of the magma has a predominating influence on the composition of the pyroxenes crystallizing from it. Unless it is certain that a suite of natural pyroxenes have all precipitated from the same magma, it is probably pointless to attempt to deduce the relativeP-Tconditions of their formation from their major element chemistry.
Serpentine minerals from the southern portion of the ultramafic belt of New Caledonia
Authors: Rodgers K. A. 
Published: December 2006

SummaryPeridotitic rocks in the Massif du Sud, southern New Caledonia, have suffered about 30 % serpentinization. Optical studies combined with X-ray and chemical analyses indicate that chrysotile and lizardite are the dominant serpentine species present. Serpentinization probably occurred during emplacement of the Massifs in their present overthrust position.
The mineralogy and paragenesis of a fluorspar flat at Masson Hill, Matlock, Derbyshire
Authors: Ixer Robert A. 
Published: December 2006

SummaryInvestigation of the mineralogy and paragenesis of the fluorspar flat at Masson Hill, Matlock, Derbyshire, shows the mineralization to be a combination of void infilling and metasomatic replacement. The main paragenesis is of the non-sulphides, fluorite, baryte, and calcite accompanied by a sequence of sulphides, bravoite, pyrite, marcasite, chalcopyrite, sphalerite, and galena. A wide range of secondary minerals occur in the oxidation zone.
Nigerite in the tin-tantalum pegmatites of Amapá, Brazil
Authors: Kloosterman J. B. 
Published: December 2006

SummaryThe location and some characteristics of nine veins containing nigerite are reported. These veins are part of the province of tin-tantalum veins of central Amapá. They are intrusive in andalusite schist and commonly consist of pegmatite in the centre and of quartz-mica rock at the margins. The nigerite can occur in the pegmatite as well as in the quartz-mica rock; its presence in a sample of quartz-sillimanite rock is also mentioned. In both pegmatite and quartz-mica rock, the common associated translucent heavy minerals are cassiterite, tourmaline, chrysoberyl, and occasionally andalusite, sillimanite, and garnet. Associated minerals in the quartz-sillimanite rock are cassiterite and chrysoberyl. Nigerite and cassiterite commonly occur together but are not found in the presence of gahnite. A possible explanation for this is given.The nigerite of Amapá occurs as thin hexagonal plates, transparent and golden brown, amber-yellow or colourless, with diameters from microscopic up to a few millimetres. The sizes and the optical sign of this nigerite are the same as those of Nigeria and of Siberia, whereas Portuguese nigerite occurs in very fine grains and is mostly optically negative. The existence of alluvial nigerite is reported.
The crystal structure of phlogopite by neutron diffraction
Authors: Rayner J. H. 
Published: December 2006

SummaryThe positions of all the atoms including hydrogen have been found by a partial three-dimensional single-crystal neutron-diffraction study in which about one-third of the reflections in the reciprocal sphere to 1·5 Å were measured. The hydroxyl group is perpendicular to the plane of the silicate sheets. The fluorine content of this phlogopite is enough to occupy 25 % of the (OH, F) sites. Site occupancy refinement suggests that there is a small deficiency of hydrogen at the remaining sites and that the two crystallographically different octahedral sites are fully occupied by the same proportions of Mg, Ti, Fe, and Ca.
Phase II Trial of a Toll-Like Receptor 9–Activating Oligonucleotide in Patients With Metastatic Melanoma
Authors: Pashenkov Mikhail , Goëss Gerda , Wagner Christine , Hörmann Markus , Jandl Tamara , Moser Anna , Britten Cedrik M. , Smolle Josef , Koller Silvia , Mauch Cornelia , Tantcheva-Poor Iliana , Grabbe Stephan , Loquai Carmen , Esser Stefan , Franckson Tom , Schneeberger Achim , Haarmann Cäcilia , Krieg Arthur M. , Stingl Georg , Wagner Stephan N. 
Published: December 2006

Purpose The recent identification of toll-like receptors (TLRs) and respective ligands allows the evaluation of novel dendritic cell (DC) –activating strategies. Stimulation of TLR9 directly activates human plasmacytoid DCs (PDCs) and indirectly induces potent innate immune responses in preclinical tumor models. We performed an open-label, multicenter, single-arm, phase II pilot trial with a TLR9-stimulating oligodeoxynucleotide in melanoma patients. Patients and Methods Patients with unresectable stage IIIb/c or stage IV melanoma received 6 mg PF-3512676 weekly by subcutaneous injection for 24 weeks or until disease progression to evaluate safety as well as clinical and immunologic activity. Clinical and laboratory safety assessments were performed weekly; blood samples for immunological measurements were taken every 8 weeks. Tumor measurements were performed according to Response Evaluation Criteria in Solid Tumors. Results Twenty patients received PF-3512676 for a mean of 10.9 weeks with a mean of 10.7 injections. Laboratory and nonlaboratory adverse events were limited, transient, and did not result in any withdrawals. Two patients experienced a confirmed partial response; one response is ongoing for 140+ weeks. Three patients experienced stable disease. Immunologic measurements revealed induction of an activated phenotype of PDC, elevation of serum levels of 2′,5′-oligoadenylate, a surrogate marker of type I interferon production, and significant stimulation of natural killer cell cytotoxicity (the latter was associated with clinical benefit). Conclusion These results indicate that TLR9-targeted therapy can stimulate innate immune responses in cancer patients, identify biomarkers that may be associated with TLR9-induced tumor regression, and encourage the design of follow-up studies to evaluate the ability of this therapeutic approach to target human cancer.
A Simple Method to the Fabrication of Rectangular Co3O4 Nanosheets
Authors: Ni Xiaomin , Song Jimei , Li Dongguo , Zhang Yongfeng , Zheng Huagui 
Published: December 2006

Abstract
Rectangular Co3O4 nanosheets with the thickness of about 50–100 nm were fabricated by calcining the isomorphological Co(CO3)0.35Cl0.20(OH)1.10 precursor, which were produced via the reaction of CoCl2 and CO(NH2)2 in the presence of PEG (polyethylene glycol)-10000. Thus-prepared Co3O4 sheets exhibited high efficiency for the growth of carbon nanotubes in pyrolyzing ethanol.
In Situ Measurement of Individual W/O Microemulsions of Aerosol OT in Dodecane/Water Extraction System by Total Internal Reflection Laser Light Scattering Microscopy
Authors: Tsukahara Satoshi , Kitaguchi Haruyasu , Watarai Hitoshi 
Published: December 2006

Abstract
The laser light scattering microscopy under the total internal reflection condition allowed one to do in situ measurements of individual W/O microemulsions of aerosol OT (AOT) formed spontaneously at a dodecane/water interface in a thin-layer two-phase microcell. The instrument can detect the AOT microemulsions being larger than 50 nm in hydrodynamic radius at the interface and in the dodecane phase without any probe molecules.
A Facile Size-control Method of CdS Nanoparticles In-situ Synthesized in Polymer Matrix by Adjusting Ratio of Acidic Acid with Metallic Complex in Acrylate Photoresist Resin
Authors: Sun Zheng-Bin , Chen Wei-Qiang , Dong Xian-Zi , Duan Xuan-Ming 
Published: December 2006

Abstract
A facile method with efficient control of nanoparticles size in polymer matrix by combination of in situ synthesis and photopolymerization is proposed and investigated. The photoluminescence of the CdS–polymer nanocomposites was easily tuned by adjusting the molar ratio of acrylic acid to cadmium acrylate in designed photoresist resins.
Carbazole Synthesis by Platinum-catalyzed C–H Functionalizing Reaction Using Water as Reoxidizing Reagent
Authors: Yamamoto Mitsuru , Matsubara Seijiro 
Published: December 2006

Abstract
Treatment of 1-aminobiphenyl and diphenylamine with catalytic amount of Pt/C in hydrothermal water (250 °C, 4 MPa) affords 9H-carbazole in good yield. In this catalytic cycle, water works as reoxidizing reagent for platinum catalyst.
Enantioselective Epoxidation of Conjugated Z-Olefins with Newly Modified Mn(salen) Complex
Authors: Egami Hiromichi , Irie Ryo , Sakai Ken , Katsuki Tsutomu 
Published: December 2006

Abstract
Chiral Mn(salen) complex 3 bearing a 1-ethyl-1-methylpropyl group at C3, C3′, C5, and C5′ was found to induce higher asymmetry in the epoxidation of conjugated Z-olefins, especially less nucleophilic ones, in the presence of 4-phenylpyridine N-oxide than complex 1 bearing a t-butyl group at the same carbons. The higher enantioselectivity was considered to be attributable to Me-in-plane conformation of the 1-ethyl-1-methylpropyl group at C3 and C3′.
Iron-catalyzed Direct-type Hydroxymethylation of 1,3-Dicarbonyl Compounds in Water
Authors: Ogawa Chikako , Kobayashi Shu 
Published: December 2006

Abstract
Direct-type hydroxymethylation of 1,3-dicarbonyl compounds with aqueous formaldehyde proceeded smoothly in water in the presence of Fe(NO3)3·9H2O and sodium dodecylbenzenesulfate (SDBS), to afford the corresponding products in good to high yields.
Genetic instability in the RAD51 and BRCA1 regions in breast cancer
Authors: Nowacka-Zawisza Maria , Bryś Magdalena , Romanowicz-Makowska Hanna , Kulig Andrzej , Krajewska Wanda 
Published: December 2006

AbstractBreast cancer is the most prevalent cancer type in women. Accumulating evidence indicates that the fidelity of double-strand break repair in response to DNA damage is an important step in mammary neoplasias. The RAD51 and BRCA1 proteins are involved in the repair of double-strand DNA breaks by homologous recombination. In this study, we evaluated loss of heterozygosity (LOH) in the RAD51 and BRCA1 regions, and their association with breast cancer. The polymorphic markers D15S118, D15S214 and D15S1006 were the focus for RAD51, and D17S855 and D17S1323 for BRCA1. Genomic deletion detected by allelic loss varied according to the regions tested, and ranged from 29 to 46% of informative cases for the RAD51 region and from 38 to 42% of informative cases for the BRCA1 region. 25% of breast cancer cases displayed LOH for at least one studied marker in the RAD51 region exclusively. On the other hand, 31% of breast cancer cases manifested LOH for at least one microsatellite marker concomitantly in the RAD51 and BRCA1 regions. LOH in the RAD51 region, similarly as in the BRCA1 region, appeared to correlate with steroid receptor status. The obtained results indicate that alteration in the RAD51 region may contribute to the disturbances of DNA repair involving RAD51 and BRCA1 and thus enhance the risk of breast cancer development.
Tetraploid somatic hybrids of potato (Solanum tuberosum L.) obtained from diploid breeding lines
Authors: Przetakiewicz Jarosław , Nadolska-Orczyk Anna , Kuć Dominik , Orczyk Wacław 
Published: December 2006

AbstractIntraspecific somatic hybrids between 16 different diploid breeding lines of Solanum tuberosum L. were produced by PEG-induced fusion. Manually selected heterokaryons were cultured in a Millicells-CM using a post-fusion protoplast mixture. Plants were regenerated from calli derived from heterokaryons obtained from 10 out of 38 combinations of diploid lines. Of the tested putative somatic hybrids, 14.2% were diploid, 72.8% were tetraploid and 13% pentaploid. The DNA amplification pattern obtained with RAPD or semi-random primers confirmed that 6 fusion combinations were hybrids. In most cases, the morphological traits were intermediate to those of the diploid fusion partners. About 23.0% of the tested somatic hybrids showed variation in their morphology. Of the tested somatic hybrids, 78.0% flowered and 86.0% tuberized. The cytoplasm of 9 diploid lines and 6 somatic hybrid combinations was analysed. Two of the diploid lines had W/S chloroplasts and α or ε mitochondria; the remainder contained T chloroplasts and β mitochondria. All the analysed somatic hybrids carried T chloroplasts and β mitochondria.
I'll keep you in mind: the intimacy function of autobiographical memory
Authors: Alea Nicole , Bluck Susan 
Published: December 2006

AbstractAn experimental study examined whether autobiographical memory serves the function of maintaining intimacy in romantic relationships. Young and older adults (N = 129) recalled either autobiographical relationship events or fictional relationship vignettes. Intimacy (warmth, closeness) was measured before and after remembering. Warmth was enhanced after recalling autobiographical events irrespective of individuals' age and gender; women also experienced gains in closeness. The role of memory characteristics (quality and content) in producing changes in intimacy was also examined. Personal significance of the autobiographical memory was the best predictor of warmth and closeness in the relationship, though how frequently the memory was thought or talked about, and how intimate the memory was also predicted levels of closeness, particularly for women. Results are discussed in terms of how autobiographical memories can be used to foster intimacy in romantic relationships across adulthood. Copyright © 2006 John Wiley & Sons, Ltd.
Atrazine Toxicity Reduction Following H2O2/TiO2‐Photocatalyzed Reaction and Comparison with H2O2‐Photolytic Reaction
Authors: Campanella Luigi , Vitaliano Rosa 
Published: December 2006

AbstractAn atrazine photodegradation study carried out by a Q‐Panel suntest apparatus is reported in this work. H2O2/TiO2 photocatalyzed reaction yield and parameters (time, irradiance, temperature, H2O2 (40 %) volume, TiO2 amount) were exactly determined relating to the used atrazine concentration. An experimental kinetic study was performed to establish the reaction order in fixed conditions. Using a biosensor method, 10‐4 M Atrazine solution toxicity and final photocatalytic reaction solution toxicity were quantitatively determined. A consistent toxicity decrease was observed on passing from the analyte to the products of the photocatalytic reaction. An analogous photolytic reaction carried out in absence of TiO2, but in the same experimental conditions of time, irradiance, temperature and H2O2 volume, brings to a toxicity increase.
Separation and Preconcentration of Ag(I) in Aqueous Samples by Flotation as an Ion‐Associate Using Iodide and Ferroin Followed the Determination by Flame Atomic Absorption Spectrometry
Authors: Hosseini Mohammad Saeid , Hashemi‐Moghaddam Hamid , Kardan‐Moghaddam Gholamreza 
Published: December 2006

AbstractA simple method for separation/preconcentration and determination of Ag (I) in aqueous samples is described. The method is based on formation of an ion‐associate between Ag (I)‐iodide complex and ferroin, which can be floated at the interface of the aqueous/n‐heptane phases. The flotation process was carried out using 500‐ml aliquot of the aqueous solution and the floated layer was dissolved in 5 ml of 1 M HNO3 containing methanol (50% v/v) as the solvent. The Ag (I) content was then determined by flame atomic absorption spectrometry (FAAS). The method so could be considered as an enrichment process, was achieved to a quantitative feature, when the pH of the solution was adjusted to 4 and the concentrations of iodide and ferroin were about 3.2×10‐4 M and 6.25×10‐5 M, respectively. The LOD and RSD (n=7) were obtained 1.0×10‐8 M and 2.4%, respectively. It was found that a large number of cations and anions even at high considerably foreign ion/Ag(I) ratios were not interfered. The method was applied satisfactorily to recovery of Ag(I) from different aqueous samples.
Combination of Genetic Algorithm and Partial Least Squares for Cloud Point Prediction of Nonionic Surfactants from Molecular Structures
Authors: Ghasemi Jahanbakhsh , Ahmadi Shahin 
Published: December 2006

AbstractQuantitative structure–property relationship (QSPR) analysis has been directed to a series of pure nonionic surfactants containing linear alkyl, cyclic alkyl, and alkey phenyl ethoxylates. Modeling of cloud point of these compounds as a function of the theoretically derived descriptors was established by multiple linear regression (MLR) and partial least squares (PLS) regression. In this study, a genetic algorithm (GA) was applied as a variable selection method in QSPR analysis. The results indicate that the GA is a very effective variable selection approach for QSPR analysis. The comparison of the two regression methods used showed that PLS has better prediction ability than MLR.
Thematic workshop on fluorescence compensation settings in multicolor flow cytometry
Authors: Bayer Jan , Grunwald Didier , Lambert Claude , Mayol Jean François , Maynadié Marc 
Published: December 2006

AbstractIn his program of thematic one‐day workshops, the French Association of Cytometry had organized a workshop dedicated to the fluorescence compensation settings in multicolor flow cytometry. This special day was in honor of our past President Jean Luc D'Hautcourt who has been involved in the quality of the use of flow cytometry in it's clinical and research purposes. Review on fluorescence phenomena, compensation rules, settings, and few observed confunding situations were presented. © 2006 Clinical Cytometry Society