bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis of ordered mesoporous U3O8 by a nanocasting route
Authors: Zhao Ran , Wang Lin , Gu Zhan-Jun , Yuan Li-Yong , Xiao Cheng-Liang , Zhao Yu-Liang , Chai Zhi-Fang , Shi Wei-Qun 
Published: May 2014

Abstract
Ordered mesoporous U3O8 has been synthesized by a nanocasting route using mesoporous silica (KIT-6 and SBA-15) as
templates and characterized by using XRD, SEM and nitrogen adsorption/desorption techniques.
Selective separation of Am(III) from Eu(III) by
2,9-Bis(dialkyl-1,2,4-triazin-3-yl)-1,10-phenanthrolines: a
relativistic quantum chemistry study
Authors: Xiao Cheng-Liang , Wang Cong-Zhi , Lan Jian-Hui , Yuan Li-Yong , Zhao Yu-Liang , Chai Zhi-Fang , Shi Wei-Qun 
Published: May 2014

Abstract
The complexation properties of Am(III) and Eu(III) with a serial of novel N-heterocyclic tetradentate ligands,
2,9-bis(dialkyl-1,2,4-triazin-3-yl)-1,10-phenanth-rolines (BTPhens), have been calculated by density functional theory (DFT) coupled
with relativistic small-core pseudopotential. It is found that the nitrogen atoms in triazine rings favor metal cations more than those
in phenanthroline skeleton. The Am-N bond lengths are comparable to or even shorter than those of Eu-N bonds based on the larger radii
of Am(III) than Eu(III). The effect of alkyl substituents on the complex structures is limited but they can adjust the complexation
reaction and extraction kinetics. Additionally, the solvent effect can decrease the probability of the complexation reactions greatly
and the solvation energies of Am(III) and Eu(III) might be the primary driving force in the complexation selectivity. The complexation
reactions for forming ML(NO3)3 and [ML2(NO3)]2+ complexes are believed to dominate the selective extraction
separation of Am(III) from Eu(III) in nitric acid media, which agrees well with the experimental results. The comparisons of BTPhens
with BTBPs in dipoles and electronic structures confirm that the BTPhens exhibit more favourable extraction kinetics and selectivity
for minor actinides.
Do monetary policy shocks generate TAR or STAR dynamics in output?
Authors: Donayre Luiggi 
Published: May 2014

AbstractThis paper studies whether the relationship between monetary policy shocks of different size and output is better described by threshold autoregressive (TAR) or smooth transition autoregressive (STAR) dynamics. Using a Bayesian framework, a TAR process and a STAR process are formally compared within an unobserved components model of output, augmented with a monetary policy variable. The Bayesian model comparison favors the notion that the dynamics are nonlinear and better described by a smooth transition between regimes, which suggests that aggregation plays a role in the dynamics between monetary policy and output. This evidence is further supported by the results of a model that uses output data at the sectoral level: when more disaggregated data are employed, the transition between regimes is more abrupt. Moreover, the results show that, when the transition between regimes is smooth, large monetary policy shocks identified as the residuals of a VAR are neutral, consistent with the implications of menu-costs models.
Assessment of conformity, decision rules and risk analysis
Authors: Phillips Steven D. , Krystek Michael 
Published: May 2014

Abstract
Measurement uncertainty has important economic consequences for calibration and inspection activities. In calibration reports, the magnitude of the uncertainty is often taken as an indication of the quality of the laboratory. In industrial measurements, uncertainty has an economic impact through the decision rule employed in accepting and rejecting products. With significant economic interests at stake, manufacturers and consumers have to guard against accepting bad products and rejecting good ones. While the evaluation of measurement uncertainty is a pure technical activity well described in the GUM, the selection of a decision rule is a business decision that involves cost considerations.
Recently, several national and international standards bodies have addressed the decision rule issue to provide a uniform, unambiguous terminology for documenting a decision rule and to describe the relationship between conforming characteristics and acceptable measurement results. Similarly, the issue of risk analysis addresses the problem of determining the gauging limits that define the boundaries of acceptable measurement results. Gauging limits are chosen to balance the risks of the two types of decision errors (accepting nonconforming products and rejecting conforming products), whose relative magnitudes depend upon product-specific economic factors. This paper reviews recent standardization developments in these areas.
The Effects of Blade 3D Designs in Different Orthogonal Coordinates on the Performance of Compressor Cascades
Authors: Xu Pengfei , Yu Xianjun , Liu Baojie 
Published: May 2014

AbstractThe chordwise based Sweep-Dihedral Coordinates (SDC) and axial-tangential based Axial Sweep-Lean Coordinates (ASLC) are the two widely used coordinates systems for blade 3D design. In order to clarify the relationships between them, some numerical simulations were conducted in a simplified planar cascade model. The cascade model has a large aspect ratio of 3.0 and free-slip endwalls, which are used to minimize the endwall flow effects. The simulation results of totally 9 cases with different blade 3D design schemes, including sweep, dihedral, axial sweep and lean, were analyzed. Firstly, the effects of each type of blade 3D designs were summarized. And then, based on the rule of vector decomposition in an orthogonal coordinates, the effects of blade axial sweep and lean in ASLC were deduced from the effects of blade sweep and dihedral in SDC. It was found that forward/backward axial sweep is combined by positive/negative dihedral and forward/backward sweep, which have opposite trends of effects, resulting in a counterbalance phenomenon. Moreover, positive/negative lean is combined by positive/negative dihedral and forward/backward sweep, which have the same trends of effects, resulting in a superposition effect.
Study on Internal Flow and External Performance of a Semi-open Impeller Centrifugal Pump with Different Tip Clearances
Authors: Jia Xiao-Qi , Cui Bao-Ling , Zhang Yu-Liang , Zhu Zu-Chao 
Published: May 2014

AbstractTo study the influence of tip clearance on internal flow characteristics and external performance of a prototype centrifugal pump with a semi-open impeller, the unsteady numerical simulation and performance experiments are carried out in this paper. The evolution process of leakage vortex with time
ON GOOD TRANSLATIONS
Authors: Gotz Dieter 
Published: May 2014

Abstract
Assessing the quality' of translations means assessing the quality of texts. The article provides a sketch of some criteria which might be useful for evaluating texts, and three criteria are suggested for "good translations". A good translation presupposes a) that the source text has been fully understood, that b) the translation results in a good text, and that c) any deviation from b) needs justification. The following sections serve to illustrate what is meant by "fully understand a text", with special emphasis on shared knowledge, text genre, associations and collocations, and the interplay of spoken and written language in written texts. There are some remarks on overt translations and on non-translatability. After that, attention is given to those circumstances which might require different types of translation. Finally, it is suggested that for translation theory to become a theory proper, more empirical evidence from parallel translation corpora will be needed.
"Who Lets a Big Question Upset His Small, Safe World?": British Postmodern Realism and the Question of Ethics
Authors: Craps Stef 
Published: May 2014

Abstract
Criticism of British postmodern realist fiction has long been marked by an almost'total disregard for ethics. The reason why critics investigating the antirepresentational strategies characterizing the work of such writers as Peter Ackroyd, Martin Amis, Julian Barnes and Graham Swift have for the most part remained silent about its ethical status is the widespread belief that ethics is incompatible with a questioning stance towards representation. The few academic critics who (claim to) have discovered some sort of ethical value in the self-reflexive, theoretically sophisticated fictions produced by these writers are liberal-humanists working in the ArnoldianLeavisite tradition, who, in their search for moral truths, appear to be oblivious to specifically postmodern textual practices that block easy access to meaning. Taking its cue from the deconstructive type of ethical criticism that came to the fore in the 1990s, this article suggests an alternative to both the textualist neglect and the liberalhumanist misrecognition of the ethics of British postmodern realism. Through a reading of Graham Swift's 1992 novel Ever After, it shows that postmodern realist fiction has an ethical dimension qua' postmodern realist fiction; an ethical dimension that cannot be reduced to the promulgation of traditional moral values but rather has to be conceived as the elaboration of a post-humanist, non-foundational ethics of alterity.
Legrands Opus Magnum: Der alchemistische Code in Edgar Allan Poes "The Gold-Bug"
Authors: Voss Klaas 
Published: May 2014

Abstract
Edgar Allan Poe's short story "The Gold-Bug", originally published in 1843, is one of his most cryptographic writings and his been subject to many interpretative approaches. I contend that the alchemical code hidden within the superficial framework of an adventure story permeates the entire tale and adds a coherent, yet mystifying, layer of meaning. Based on the findings of Barton Levi St. Armand in 1971, this article shows that Poe's numerous alchemichal allusions in this story form a detailed account of the so called opus magnum, the greatest quest of the alchemist, who 'is personified by the character Legrand. Furthermore, the alchemical code in "The Gold-Bug" demonstrates how the strife for material wealth is transformed through a process of ratiocination into a search for enlightenment. This reflects the original project of hermetic alchemy as well as Poe's critical perception of the economic and political turmoil of the 1840s
Traveling Urban Utopias and the Birth of Suburbia
Authors: Bayer Gerd 
Published: May 2014

Abstract
This article argues that the development of American-style suburbia is related to the European utopian longing for openness as expressed in William Morris's News
from Nowhere. This European desire is here shown to be a reaction to an American utopian literary tradition, exemplified by Edward Bellamy's Looking Backward, a novel that celebrates dense urbanity. After having traveled back and forth across the Atlantic and reversed their respective visions of urbanity, utopian writings ultimately materialized as dystopian urban spaces.
“the spaces between the columns”: Die Text-Raume und Raum-Texte des Samuel R. Delany
Authors: Joachimsthaler Jürgen 
Published: May 2014

Abstract
Inspired by Allan Kaprows performance 18 Happenings in 6 Parts (1959), the Black American writer Samuel R. Delany created his own mode of 'narrative spaciality.' Spaces to him are primarily systems of signs, conventions, and power. These 'semiospheres' determine all modes of cognition and provoke the fundamental question of whether and how human beings can escape the semantics of their respective culture. This article traces the metamorphoses of Delany's spacial concepts in his literary, essayistic, and autobiographical ceuvre and thus also reconstructs the intellectual development of one of the most idiosyncratic American postmodernists.
A Glimpse at Dylan through Biermann
Authors: Bergman Elliott 
Published: May 2014

Abstract
In 2003 the German songwriter-poet Wolf Biermann published Elf Entwürfe für meinen Grabspruch (Eleven Sketches for My Own Epitaph), a textual encounter that places Biermann’s free-form translations in counterpoint to "Eleven Outlined Epitaphs," Bob Dylan’s Beatesque poem that originally appeared in the liner notes of The Times They Are A-Changin’ (1964). Donning the identities of poet and folk singer interchangeably, both Bob Dylan and Wolf Biermann have pursued successful careers straddling the high/Iow an divide since their arrival on the respective pop music scenes of Germany and the US. As cultural documents, however, Biermann’s translations not only articulate his poetical affinity to Dylan’s art, but they also underscore the challenges of mediating the ambiguous tropes of Dylan’s vernacular contextuality to a German audience. This article sets out to examine how the reception of Bob Dylan’s music in 1960s Germany comes to bear on Biermann’s Grabspriiche vis-a-vis Dylan’s epitaphs to argue that, despite the concerted German feuilleton criticism, Biermann’s translations promulgate great understanding of Dylan’s poetry and song.
1:1 Co-crystals of sulfadimidine with three bipyridine-type molecules: Persistence of N–H…N hydrogen bonded supramolecular chains
Authors: Tiekink Edward R. T. , Arman Hadi D. , Kaulgud Trupta 
Published: May 2014

Abstract
The crystal and molecular structures of 1:1 cocrystals formed between sulfadimidine and each of three bipyridine-type molecules, namely 4,4′-bipyridine (1), 4- [(E)-2-(pyridin-4-yl)ethenyl]pyridine (2) and 4-[2-(pyridin- 4-yl)ethyl]pyridine (3), are described; 1 and 2 were characterised as acetone hemi-solvates. A common feature of the sulfadimidine molecules is the adoption of a shape approximating the letter L. Conformational variability of sulfadimidine as well as in the bipyridine-type molecules is highlighted. The common feature of the crystal packing is the formation of non-linear supramolecular chains sustained by amino- and amide-H…N(pyridyl) hydrogen bonds
New findings on N-mayenite and a new kind of anion substituted mayenite: Ca12 Al14 O32(NO2)2
Authors: Schmidt Alexander , Boysen Hans , Senyshyn Anatoliy , Lerch Martin 
Published: May 2014

Abstract
The framework structure of O-mayenite (Ca12 Al14 O33) allows the substitution of extra framework oxygen anions by various anions. In this study we present two new anion substituted phases. Oxidation of CN-mayenite leads to the formation of NO2-mayenite and, in addition, there are some hints to a very unusual species present in N-mayenite: the hydrazide anion.
Paraneoplastic hypoglycemia in a patient with a malignant solitary fibrous tumor
Authors: Mohammedi Kamel , Abi Khalil Charbel , Olivier Sophie , Benabad Imane , Roussel Ronan , Marre Michel 
Published: May 2014

Summary
Hypoglycemia is a common medical emergency. It is the most frequent complication induced by anti-diabetic treatment. However, it can be observed in other conditions unrelated to diabetes such as insulinoma, autoimmune disorders, and neoplasia. Herein, we report the case of a rare cause of severe and recurrent hypoglycemia in a 77-year-old woman with a malignant solitary fibrous tumor (MSFT). A 77-year-old woman was admitted to the emergency department for loss of consciousness induced by severe hypoglycemia. Her standard laboratory findings were unremarkable. HbA1c, albumin, renal, liver, thyroid, and adrenal function tests were normal. Cerebral CT scan was also normal. At the time of confirmed hypoglycemia, the serum level of insulin and C-peptide was low. On the basis of the past medical history and the absence of other comment etiologies, a paraneoplastic cause was suspected. Thus, the diagnosis of a non-islet cell tumor-induced hypoglycemia (NICTH) was established by the presence of incompletely processed precursors of IGF2 (big IGF2) in plasma electrophoresis. However, the IGF1 level was low. Therapy with corticosteroids improved hypoglycemia and clinical symptoms. NICTH is a rare cause of hypoglycemia. It should be considered in patients with mesenchymal or malignant epithelial tumors suffering from recurrent episodes of hypoglycemia. The diagnosis will be established in the case of low serum insulin concentrations and elevated levels of big IGF2. Treatment with corticosteroids, GH, or both can improve hypoglycemic symptoms and restore plasma glucose to normal levels.

Learning points

NICTH is a very rare condition that should be considered in patients known to have mesenchymal or malignant epithelial tumors and suffering from recurrent episodes of hypoglycemia.

The diagnosis of an NICTH is established on the basis of the hypoinsulinemic hypoglycemia, the MSFT history, and the presence of paraneoplastic secretion of IGF1 or an immature form of IGF2.

Treatment with corticosteroids, GH, or both can improve hypoglycemic symptoms and restore plasma glucose to normal levels in NICTH.
Udp-Glycosyltransferases of Plant Hormones
Authors: Ostrowski Maciej , Jakubowska Anna 
Published: May 2014

Summary
UDP-glycosyltransferases (GTases, UGT) catalyze the transfer of the sugar moiety from the uridine-diphosphate-activated monosaccharide (e.g. uridine-diphosphate-5’-glucose, UDPG) molecule to the specific acceptor. Glycosides contain aglycons attached by a β-glycosidic bond to C1 of the saccharide moiety. Glycosylation is one of the mechanisms maintaining cellular homeostasis through the regulation of the level, biological activity, and subcellular distribution of the glycosylated compounds. The glycosides play various functions in plant cells, such as high-energy donors, or signalling molecules, and are involved in biosynthesis of cell walls. Plant cells exhibit structural and functional diversity of UGT proteins. The Arabidopsis thaliana genome contains more than 100 genes encoding GTases, which belong to 91 families, and are deposited in the CAZY (Carbohydrate Active enzyme) database (www. cazy.org/GlycosylTransferases.html). The largest UGT1 class is divided into 14 subfamilies (A-N), and includes proteins containing highly conserved 44-amino acid PSPG (Plant Secondary Product Glycosyltransferase) motif at the C-terminus. The PSPG motif is involved in the binding of UDP-sugar donors to the enzyme. UGT1’s catalyze the biosynthesis of both ester-type and ether-type conjugates of plant hormones (phytohormones). Conjugation of the phytohormones is an important mechanism that regulates the concentration of physiological active hormone levels during growth and development of plants. Glycoconjugation of phytohormones is widespread in the plant kingdom and all known phytohormones are able to form these conjugates. Most plant hormone conjugates do not indicate physiological activity, but rather are involved in transport, storage and degradation of the phytohormones. UDPG-dependent glycosyltransferases possess high substrate specificity, even within a given class of phytohormones. In many cases, the phenotype of plants is strongly affected by loss-of-function mutations in UGT genes. In this paper, advances in the isolation and characterization of glycosyltransferases of all plant hormones: auxin, brassinosteroids, cytokinin, gibberellin, abscisic acid, jasmonates, and salicylate is described
Morphology, affinities and phytogeographic history of Porosia Hickey in the Cretaceous and Paleocene of North America and Asia
Authors: Manchester Steven R. , Kodrul Tatyana M. 
Published: May 2014

ABSTRACT
Morphology and anatomy of the extinct angiosperm fruit, Porosia verrucosa (Lesqueruex) Hickey, are documented in detail based on various modes of preservation including molds, casts, and permineralizations from more than seventy localities in the late Cretaceous and Paleocene. The fruits are schizocarpic with paired unilocular, single-seeded mericarps seated on a prominent gynophore with an hypogynous perianth borne on a long pedicel. The most distinctive feature of these fruits is the regularly spaced cylindrical intrusions over the surface of the endocarp. These are interpreted to represent oil cavities similar to those common in the fruits of extant Rutaceae. The oldest known occurrences of P. verrucosa are from the Late Cretaceous (Campanian to Maastrichtian) of western North America, but the genus traversed Beringia and became widespread in the Paleocene both in Asia (Kazakhstan, Amur Region, and Koryak Highlands), and North America (Montana, North Dakota, Wyoming, Colorado, Oregon, Washington, Alberta, Saskatchewan). It extended to the late Paleocene in the Rocky Mountain and Great Plains region, and appears to have become extinct near the Paleocene-Eocene boundary.
Rugosa (anthozoa) from the serpukhovian (lower carboniferous) of the upper silesian coal basin
Authors: Fedorowski Jerzy , Machłajewska Iwona 
Published: May 2014

Abstract
Two species, Antiphyllum sp. nov. 1 and Zaphrufimia sp. nov. 1, the first corals found in Štur horizon of the upper Malinowickie Beds, Upper Pendleian (E 1 ), are here described. Additional study of the subspecies of Zaprufimia disjuncta show them to be more similar than previously thought. Although they occur mainly in the Enna and Barbara horizons, one specimen of Z. d. serotina comes from the Gabriela horizon. Biozone Zaphrufimia disujncta disjuncta/Z .d .praematura is proposed for the Enna and Barbara horizons. The subzone of Zaphrufimia/ Triadufimia of that Biozone, defined by the presence of Triadufimia gen. nov., is restricted to the Enna horizon. As confirmed by the occurrence of Cravenoceratoides edalensis, the new subzone roughly corresponds to the E2b1 ammonite Zone. An Antiphyllum/Ostravaia/Variaxon assemblage Zone is proposed for the coral assemblage of the Gaebler horizon. Cravenoceratoides nitidus present in the Roemer band (I b ) shows it to correlate with the E2b2 ammonite Zone. Comparison with other European regions suggests possible faunal exchange between those areas and the Upper Silesian Coal Basin in Serpukhovian time.
Petrological studies of neoproterozoic serpentinized ultramafics of the nubian shield: spinel compositions as evidence of the tectonic evolution of egyptian ophiolites
Authors: Azer Mokhles K. 
Published: May 2014

Abstract
The mafic-ultramafic rocks of the Gabal El-Degheimi area, Central Eastern Desert of Egypt, are parts of an ophiolitic section. The ophiolitic rocks are dismembered and tectonically enclosed within, or thrust over, island arc assemblages. Serpentinites, altered slices of the upper mantle, represent a distinctive lithology of the dismembered ophiolites. Some portions of the serpentinized rocks contain fresh relicts of primary minerals such as chromian spinel and olivine. The abundance of bastite and mesh textures suggests harzburgite and dunite protoliths, respectively, for these serpentinites. Some fresh cores of chromian spinel are rimmed by ferritchromite and Cr-magnetite. The development of alteration rims around chromian spinel cores indicates their formation during prograde alteration and under oxidizing conditions during lower amphibolite facies metamorphism. Fresh chromian spinels are characterized by high contents of Cr2O3 (48.92-56.74 wt. %), Al2O3 (10.29-20.08wt. %), FeO (16.24-28.46 wt. %) and MgO (4.89-14.02 wt. %), and very low TiO2 contents (<0.16 wt. %). The analyzed fresh chromian spinels have high Cr# (0.62-0.79) characteristic of spinels in mantle peridotite that has undergone some degree of partial melting. The data presented here suggest that the mantle peridotites of the Gabal El-Degheimi area are similar to forearc peridotites of suprasubduction zone environments.
STRESS STATE ANALYSIS IN ASPECT OF WELLBORE DRILLING DIRECTION
Authors: Knez Dariusz 
Published: May 2014

Abstract
Drilling directional wells challenges designers. Apart from known problems until now they face exact description of stress distribution in near wellbore region issue. Paper presents analysis of stress state taking into account drilling direction. The transposed in-situ stress state relative to the borehole coordinate system (Cartesian borehole coordinate system) and the total stress component at the borehole wall (cylindrical coordinate system) exhibits cyclic behaviour with respect to drilling direction of borehole. It allows to find optimal wellbore path