bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Effect of Antimonate, Arsenate, and Phosphate on the Transformation of Ferrihydrite to Goethite, Hematite, Feroxyhyte, and Tripuhyite
Authors: Bolanz Ralph Michael , Bläss Ulrich , Ackermann Sonia , Ciobotă Valerian , Rösch Petra , Tarcea Nicolae , Popp Jürgen , Majzlan Juraj 
Published: March 2013

AbstractIron oxides, typical constituents of many soils, represent a natural immobilization mechanism for toxic elements. Most iron oxides are formed during the transformation of poorly crystalline ferrihydrite to more crystalline iron phases. The present study examined the impact of well known contaminants, such as P(V), As(V), and Sb(V), on the ferrihydrite transformation and investigated the transformation products with a set of bulk and nano-resolution methods. Irrespective of the pH, P(V) and As(V) favor the formation of hematite (α-Fe2O3) over goethite (α-FeOOH) and retard these transformations at high concentrations. Sb(V), on the other hand, favors the formation of goethite, feroxyhyte (d’-FeOOH), and tripuhyite (FeSbO4) depending on pH and Sb(V) concentration. The elemental composition of the transformation products analyzed by inductively coupled plasma optical emission spectroscopy show high loadings of Sb(V) with molar Sb:Fe ratios of 0.12, whereas the molar P:Fe and As:Fe ratios do not exceed 0.03 and 0.06, respectively. The structural similarity of feroxyhyte and hematite was resolved by detailed electron diffraction studies, and feroxyhyte was positively identified in a number of the samples examined. These results indicate that, compared to P(V) and As(V), Sb(V) can be incorporated into the structure of certain iron oxides through Fe(III)-Sb(V) substitution, coupled with other substitutions. However, the outcome of the ferrihydrite transformation (hematite, goethite, feroxyhyte, or tripuhyite) depends on the Sb(V) concentration, pH, and temperature.
Structure and Photoluminescence of Composites Based on CDS Enclosed in Magadiite
Authors: Chen Yufeng , Yu Gensheng , Li Fei , Wei Junchao 
Published: March 2013

AbstractIn order to extend the application of magadiite to optical fields (rather than the usual focus on adsorption, catalysis, ion exchange, etc.), a magadiite-CdS (Mag-CdS) composite was synthesized from Na-magadiite by ion exchange. Various techniques were used to characterize the composite. X-ray diffraction results indicated that the Mag-CdS composite retained the host magadiite structure in spite of decrease in the intensity of the X-ray diffraction peak of the host magadiite. The analytical results confirmed the formation of the Mag-CdS composite, along with the modification of the optical properties of CdS by the host magadiite.
Spectral and Hydration Properties of Allophane and Imogolite
Authors: Bishop Janice L. , Rampe Elizabeth B. , Bish David L. , Abidin Zaenal , Baker Leslie L. , Matsue Naoto , Henmi Teruo 
Published: March 2013

AbstractAllophane and imogolite are common alteration products of volcanic materials. Natural and synthetic allophanes and imogolites were characterized in the present study in order to clarify the short-range order of these materials and to gain an understanding of their spectral properties. Spectral analyses included visible/near-infrared (VNIR), and infrared (IR) reflectance of particulate samples and thermal-infrared (TIR) emissivity spectra of particulate and pressed pellets. Spectral features were similar but not identical for allophane and imogolite. In the near-infrared (NIR) region, allophane spectra exhibited a doublet near 7265 and 7120 cm−1 (1.38 and 1.40 μm) due to OH2v, a broad band near 5220 cm−1 (1.92 μm) due to H2Ov+δ, and a band near 4560 cm−1 (2.19 μm) due to OHv+δ. Reflectance spectra of imogolite in this region included a doublet near 7295 and 7190 cm−1 (1.37 and 1.39 μm) due to OH2v, a broad band near 5200 cm−1 (1.92 μm) due to H2Ov+δ, and a band near 4565 cm−1 (2.19 μm) due to OHv+δ. A strong broad band was also observed near 3200–3700 cm−1 (~2.8–3.1 μm) which is a composite of OHv, H2Ov, and H2O2δ vibrations. Visible/near-infrared spectra were also collected under two relative humidity (RH) conditions. High-RH conditions resulted in increasing band strength for the H2O combination modes near 6900–6930 cm−1 (1.45 μm) and 5170–5180 cm−1 (1.93 μm) in the allophane and imogolite spectra due to increased abundances of adsorbed H2O molecules. Variation in adsorbed H2O content caused an apparent shift in the bands near 1.4 and 1.9 μm. A doublet H2Oδ vibration was observed at 1600–1670 cm−1 (~6.0–6.2 μm) and a band due to OH bending for O3SiOH was observed at ~1350–1485 cm−1 (~6.7–7.4 μm). The Si-O-Al stretching vibrations occurred near 1030 and 940 cm−1 (~9.7 and 10.6 μm) for allophane and near 1010 and 930 cm−1 (~9.9 and 10.7 μm) for imogolite. OH out-of-plane bending modes occurred near 610 cm−1 (16.4 μm) for allophane and at 595 cm−1 (16.8 μm) for imogolite. Features due to Si-O-Al bending vibrations were observed at 545, 420, and 335 cm−1 (~18, 24, and 30 μm) for allophane and at 495, 415, and 335 cm−1 (~20, 24, and 30 μm) for imogolite. The emissivity spectra were obtained from pressed pellets of the samples, which greatly enhanced the spectral contrast of the TIR absorptions. Predicted NIR bands were calculated from the mid-IR fundamental stretching and bending vibrations and compared with the measured NIR values. Controlled-RH X-ray diffraction (XRD) experiments were also performed in order to investigate changes in the mineral structure with changing RH conditions. Both allophane and imogolite exhibited decreasing low-angle XRD intensity with increasing RH, which was probably a result of interactions between H2O molecules and the curved allophane and imogolite structures.
High-Temperature Transformation of Asbestos Tailings by Carbothermal Reduction
Authors: Huang Zhao-Hui , Li Wen-Juan , Pan Zi-He , Liu Yan-Gai , Fang Ming-Hao 
Published: March 2013

AbstractThe production and industrial use of asbestos cement and other asbestos-containing materials have been restricted in most countries because of the potential detrimental effects on human health and the environment. Chrysotile is the most common form of asbestos and investigations into how to recycle this serpentine phyllosilicate mineral have attracted extensive attention. Chrysotile asbestos tailings can be transformed thermally, at high temperature, by in situ carbothermal reduction (CR). The CR method aims to maximize use of the chrysotile available and uses high temperatures and carbon to change the mineral form and structure of the chrysotile asbestos tailings. When chrysotile asbestos is employed as the raw material and coke (carbon) powder is used as the reducing agent for CR transformation, stable, high-temperature composites consisting of forsterite, stishovite, and silicon carbide are formed. Forsterite (Mg2SiO4) was the most abundant crystalline phase formed in samples heat treated below 1500ºC. At 1600ºC, forsterite was exhausted through decomposition and β-SiC formed by reduction of stishovite. A larger proportion of β-SiC was generated as the carbon content was increased. This research revealed that both temperature and carbon addition play key roles in the transformation of chrysotile asbestos tailings.
REVIEWS
Authors: Goodman Carly , Parker Dr. Richard 
Published: March 2013

NICK CULLATHER, THE HUNGRY WORLD: AMERICA’S COLD WAR BATTLE AGAINST POVERTY IN ASIA (2010) Cambridge, MA: Harvard University Press, 326 pp., ISBN: 978-0674050785 (hbk), £27.95
EZRAPOUND: THE CONTEMPORARY REVIEWS, BETSY ERKKILA (ED.). (2011) Cambridge: Cambridge University
Press, 480 pp., 978-0521401395 (hbk), £74.00
EZRA POUND, ENDS AND BEGINNINGS, JOHN GERY AND WILLIAM PRATT (EDS) (2011) New York: AMS Press, 250pp., 978-0404655303 (pbk), £81.95
THE KNIGHT AND THE TROUBADOUR: DAG HAMMARSKJÖLD AND EZRA POUND, MARIE-NOËLLE LITTLE (ED.)
(2011) Uppsala: Dag Hammarskjöld Foundation, 182pp., 978-91-85214-60-0 (pbk/PDF), Available as a free PDF at http://www.dhf.uu.se/publications/other-publications/the-knight-and-the-troubadour-%E2%80%93-dag-hammarskjold-and-ezra-pound/
EZRA POUND, ALEC MARSH (2011) London: Reaktion
Books, 224 pp., 978-1861898623 (pbk), £10.95
EZRAPOUND IN CONTEXT, IRA NADEL (ED.) (2010) Cambridge: Cambridge University Press, 530pp., 978-0521515078 (hbk), £ 68
DRAFTS & FRAGMENTS FACSIMILE NOTEBOOKS, EZRA POUND (2011) New York: Glenn Horowitz, No ISBN (Boxed), $350.00
LE
TESTAMENT: 1923 FACSIMILE EDITION, EZRA POUND GEORGE ANTHEIL (ED.) (2011) Emeryville: Second Evening Art Publishing, 270pp., 978-0-9728859- 8-0 (pbk), $220
SELECTED POEMS AND TRANSLATIONS, EZRA POUND (2010) London: Faber & Faber, 256pp., 978-0571239009 (pbk), £16.99O
ONE
MUST NOT GO ALTOGETHER WITH THE TIDE: THE LETTERS OF EZRA POUND AND STANLEY NOTT, EZRA POUND AND STANLEY NOTT MIRANDA B. HICKMAN (ED.) (2011) Montreal and Kingston: McGill-Queen’s University Press, 432pp., 978-0773538160 (hbk), £40
EZRA POUND TO HIS PARENTS: LETTERS 1895–1929,
EZRA POUND MARY DE RACH EWILTZ, A. DAVID MOODY AND JOANNA MOODY (EDS) (2010) Oxford: Oxford University Press, 776pp., 978-0199584390 (hbk), £39
W.B. YEATS, EZRA POUND AND THE POETRY OF PARADISE, SEAN PRYOR (2011) Farnham: Ashgate Press, 250 pp., 978-1409406600 (hbk), £55
I
POETI DI SALA CAPIZUCCHI: THE POETS OF THE SALA CAPIZUCCHI, CATERINA RICCIARDI, JOHN GERY AND MASSIMO BACIGALUPO (EDS) (2011) New Orleans and Rimini: University of New Orleans Press/Raffaelli Editore, 192pp., 9781608010684 (pbk), 12.45
BOOK REVIEWS
Authors: Shaw Wendy M.K. , Carabelli Giulia , Dempsey Anna M. , Farhat Ramzi , Kenney Ellen , Abou-Hodeib Toufoul 
Published: March 2013

TURQUERIE AND THE POLITICS OF REPRESENTATION, 1728–1876, NEBAHAT AVCIOĞLU, (2011) Farnham, Surrey and Burlington, VT: Ashgate Publishing, 304 pp., 17 colour plates, 86 b/w illustrations, ISBN 9780754664222, $124.95 (cloth)
CITY AND SOUL IN DIVIDED SOCIETIES, SCOTT
A. BOLLENS, (2012) London and New York: Routledge, 278 pp., 54 b/w illus., ISBN 9780415779234, $53.95 (paperback)
HAREM HISTORIES: ENVISIONING PLACES AND LIVING SPACES, MARILYN BOOTH (ED.), (2011) Durham, NC and London: Duke University Press, 416 pp., 39 illus., 3 figures, ISBN 9780822348696,
$55 (paperback), ISBN 9780822348580, $89.95 (cloth)
DUBAI: THE CITY AS CORPORATION, AHMED KANNA, (2011) Minneapolis: University of Minnesota Press, 288 pp., 17 b/w illus., ISBN 9780816656301, $75 (cloth), ISBN 9780816656318, $25 (paper)
MAMLUK HISTORY THROUGH
ARCHITECTURE: MONUMENTS, CULTURE AND POLITICS IN MEDIEVAL EGYPT AND SYRIA,NASSER RABBAT (2010) London and New York: I.B. Tauris, 288 pp., 72 b/w illus., ISBN 978845119645, $80 (cloth)
OTTOMAN IZMIR: THE RISE OF A COSMOPOLITAN PORT, 1840–1880, SIBEL ZANDI-SAYEK, (2012) Minneapolis
and London: University of Minnesota Press, x + 273 pp., 55 b/w illus., 19 b/w maps, ISBN 9780816666010, $82.50 (cloth), ISBN 9780816666027, $27.50 (paperback)
CONFERENCE PRECIS
Authors: Ellis John , Wharton Alyson 
Published: March 2013

‘THE CITY, LIVING HERITAGE’ THE SECOND REGIONAL EURO-MEDITERRANEAN CONFERENCE OF THE CONSORTIUM MONTADA, CONVENED AT THE INSTITUT MOULAY RACHID, SALE, MOROCCO, OCTOBER 11–12, 2012
‘LOOKING WIDELY, LOOKING CLOSELY’, THIRD BIENNIAL SYMPOSIUM OF THE HISTORIANS
OF ISLMIC ART ASSOCIATION ( HIAA), OCTOBER 18–20, 2012, METROPOLITAN MUSEUM OF ART, NEW YORK
NOTES
Authors: Turco Daniela , Toscano Marco , Moliterni Ivan 
Published: March 2013

FILMCRITICA: THE LONG JOURNEY BY THE ‘BAND OF OUTTSIDERS’
BIANCO E NNERO
RIVISTA DI SSTUDI IITALIANI
DUELLANTI – MONTTHLY MAGAZINE OF CINEMA AND VISUAL CULTTURE
BOBBIO WORKSHOP
PROVO.CULTAND GARGANO FILM FESTIVAL, 5TH ANNUAL GARGANO FILM FESTIVAL, 11-13
AUGUST 2012
Factors Affecting Neonatal Thyroid Function in Preterm Infants
Authors: Williams Fiona , Delahunty Caroline , Cheetham Tim 
Published: April 2013

Thyroxine is essential for optimal brain development during gestation and for the first 2 years postnatally. Maintaining adequate thyroid hormone levels is vital, as low levels (even transiently low) are associated with adverse neurodevelopmental outcome. Thyroid hormone levels are gestationally age related, and levels vary appreciably between term infants and those born preterm; so much so, that interpretation of levels in preterm infants is most appropriately done against norms specific to the gestation at birth. Several factors, other than gestation, can alter levels of thyroid hormones, thyroid stimulating hormone/thyrotropin, and thyroid binding globulin; knowledge of these factors is helpful for interpretation and when considering the need for replacement therapy.
This review focuses on preterm infants and describes the influences of gestation, critical illness, infection, specific neonatal conditions, prescribed drug usage, iodine deficiency, and iodine excess on levels of neonatal thyroid hormones, thyroid binding globulin, and thyroid stimulating hormone/thyrotropin.
Novel Methods for Characterization of Paroxysmal Atrial Fibrillation in Human Left Atria
Authors: Zhao Jichao , Yao Yan , Huang Wen , Shi Rui , Zhang Shu , LeGrice Ian J , Lever Nigel A , Smaill Bruce H 
Published: April 2013

Introduction:
More effective methods for characterizing 3D electrical activity in human left atrium (LA) are needed to identify substrates/triggers and microreentrant circuit for paroxysmal atrial fibrillation (PAF). We describe a novel wavelet-based approach and wave-front centroid tracking that have been used to reconstruct regional activation frequency and electrical activation pathways from non-contact multi-electrode array.

Methods:
Data from 13 patients acquired prior to ablation for PAF with a 64 electrode noncontact catheter positioned in the LA were analysed. Unipolar electrograms were reconstructed at 2048 locations across each LA endocardial surface. Weighted fine- and coarse-scale electrograms were constructed by wavelet decomposition and combined with peak detection to identify atrial fibrillation (AF) activation frequency and fractionated activity at each site. LA regions with upper quartile AF frequencies were identified for each patient. On the other hand, a wave-front centroid tracking approach was introduced for this first time to detect macro-reentrant circuit during PAF.

Results:
The results employing wavelet-based analysis on atrial unipolar electrograms are validated by the signals recorded simultaneously via the contacted ablation catheter and visually tracking the 3D spread of activation through the interest region. Multiple connected regions of high frequency electrical activity were seen; most often in left superior pulmonary vein (10/12), septum (9/12) and atrial roof (9/12), as well as the ridge (8/12). The wave-front centroid tracking approach detects a major macro circuit involving LPVs, PLA, atrial floor, MV, septum, atrial roof and ridge. The regions with high frequency by wave-front tracking are consistent with the results using wavelet approach and our clinical observations.

Conclusions:
The wavelet-based technique and wave-front centroid tracking approach provide a robust means of extracting spatio-temporal characteristics of PAF. The approach could facilitate accurate identification of pro-arrhythmic substrate and triggers, and therefore, to improve success rate of catheter ablation for AF.
Stability of Cachet Phakic Intraocular Lens Position During 6-Months Follow-Up
Authors: Lomoriello D Schiano , Lombardo M , Gualdi L , Iacobelli L , Tranchina L , Ducoli P , Serrao S 
Published: April 2013

Purpose:
To evaluate the position stability of a phakic intraocular lens (Cachet pIOL; Alcon, Laboratories, Inc., Fort Worth, TX) in the anterior chamber (AC) during a 6-months follow-up.

Methods:
Thirty eyes of 16 subjects underwent a Cachet pIOL implantation for the correction of high myopia from -6.50 to -16.00 D with plano targeted refraction. The position stability of the Cachet pIOL was evaluated using an Anterior Segment-OCT (AS-OCT, Carl Zeiss AG, Oberkochen, Germany) at 1- and 6-months postoperatively. Three measurements have been taken into account: 1) the minimum distance between the anterior surface of the Cachet pIOL optic disk and the central corneal endothelium; 2) the minimum distance between the optic disk’s edges of the pIOL and the endothelium; 3) the minimum distance between the posterior surface of the pIOL optic disk and the anterior surface of the crystalline lens. The endothelial cell density (ECD) was also recorded.

Results:
No statistically significant changes of the Cachet pIOL position in the AC were found during follow-up. The average changes were ≤0.1 mm between 1- and 6-months postoperatively (P>0.05). At the end of follow-up, The mean ECD loss was 0.7 % (from 2794 ± 337 cell/mm2 to 2776 ± 388 cell/mm2; P>0.05).

Conclusion:
A high position stability of the Cachet pIOL in the anterior chamber was shown during a 6-months follow-up.
Spatially Variable Deoxygenation in the Danshui River: Improvement in Model Calibration
Authors: Chen Chien‐Hung , Lung Wu‐Seng , Yang Chung‐Han , Lin Cheng‐Fang 
Published: March 2013

ABSTRACT: A modeling study of the Danshui River, Taiwan, reveals that in‐stream BOD deoxygenation rates vary significantly along the river as a result of the highly variable strength of wastewater discharges, which directly reflect the effluent characteristics. A comprehensive field data gathering and lab analysis effort for the study site is presented. Results of the data analyses yielded spatially variable CBOD deoxygenation and nitrification rates, which were incorporated in a model of the river. The model results indicate significant improvement of model calibration, thus enhancing the predictive capability of the model for its use in water quality management. To maximize the benefits of pollution control for the Danshui River system and to achieve the water quality management goal, concurrent reductions of CBOD and ammonia loads, instead of phased reduction of CBOD followed by ammonia reduction, are strongly recommended by the model results.
Chemical Oxygen Demand Removal Efficiency and Limited Factors Study of Aminosilicone Polymers in a Water Emulsion by Iron–Carbon Micro‐Electrolysis
Authors: Yang Shangyuan , Liang Zhiwei , Yu Huadong , Wang Yunlong , Chen Yingxu 
Published: March 2013

ABSTRACT: Micro‐electrolysis was applied in the present study to investigate the effect of pH, iron–carbon mass ratio, contact time, and treatment batch on the removal efficiency of chemical oxygen demand (COD) within an aminosilicone emulsion. The results exhibited that the removal efficiency of COD decreased linearly with the batch increase, and this tendency was consistent under the various conditions. The adsorption of activated carbons contributes a large portion to the elimination of COD within the aminosilicone emulsion. The oxidation action of iron–carbon micro‐electrolysis was proven and the aminosilicone emulsion's COD removal contribution was approximately 16%. Aminosilicone polymers were adsorbed on the surface of activated carbons and iron chips, which contributes to the decline of COD removal efficiency and limits the contribution of oxidation action.
Boundary regularity of flows under perfect slip boundary conditions
Authors: Kaplický Petr , Tichý Jakub 
Published: April 2013

Abstract
We investigate boundary regularity of solutions of generalized Stokes equations. The problem is complemented with perfect slip boundary conditions and we assume that the nonlinear elliptic operator satisfies non-standard ϕ-growth conditions. We show the existence of second derivatives of velocity and their optimal regularity.
Performance and power analysis for high performance computation benchmarks
Authors: Issa Joseph 
Published: April 2013

AbstractPerformance and power consumption analysis and characterization for computational benchmarks is important for processor designers and benchmark developers. In this paper, we characterize and analyze different High Performance Computing workloads. We analyze benchmarks characteristics and behavior on various processors and propose a performance estimation analytical model to predict performance for different processor microarchitecture parameters. Performance model is verified to predict performance within <5% error margin between estimated and measured data for different processors. We also propose a power estimation analytical model to estimate power consumption with low error deviation.
Craniofacial Osteoma: Clinical Presentation and Patterns of Growth
Authors: Halawi Akaber M. , Maley Joan E. , Robinson Robert A. , Swenson Casey , Graham Scott M. 
Published: March 2013

Background This study was designed to investigate the clinical features and the growth rate of craniofacial osteomas. Methods Retrospective chart review was performed of 200 cases of craniofacial osteomas diagnosed from January 2001 to September 2011. Data pertinent to patient and osteoma lesion characteristics were collected. Histology of operated cases was reviewed. Computer tomography (CT) charts were reviewed and those with multiple images were analyzed for growth characteristics. Results One hundred forty-nine patients met our inclusion criteria. Eighty-nine percent of these osteomas were found incidentally. Forty-three percent were in the frontal sinus. Fifteen percent of the patients complained of headaches and only 6.71% of patients with osteoma had headaches congruent with osteoma location. Thirty-one percent of CT scans had sinus mucosal disease; only 8% had mucosal disease adjacent to the osteoma. Ten of the 149 patients underwent surgery for cosmetic and/or rapidly growing osteomas. Thirteen patients had intestinal tubular adenoma, and one was genetically positive for Gardner's syndrome. Fifty-two patients had multiple CT scans that were included in growth rate analysis. The mean linear growth rate of osteomas was estimated to be 0.117 mm/yr (95% CI, 0.004, 0.230) in maximal dimension, assuming linear growth. A descriptive analysis of osteoma growth divided the osteomas into several intervals and studied the growth rate separately in each interval. The median change in maximum dimension was different in each interval in a nonsystematic manner, ranging from −0.066 mm, over 3- to 9-month interval (interquartile range [IQR] = −0.404–1.069), to 0.369 mm over 9- to 15-month interval (IQR = −0.032–0.855), and 0.082 mm over 45- to 51-month interval (IQR = −0.000–0.197). There was no significant association between tumor size, location, or complications. Conclusion Craniofacial osteomas are slow-growing lesions with no specific growth pattern and rare complications. Their clinical behavior is ill defined and justifies a conservative approach toward asymptomatic lesions with close radiological follow-up.