bluuebunny/crossref_metadata_2025_split huggingface dataset:
New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. VI. Melanarsite, K3Cu7Fe3+O4(AsO4)4
Authors: Pekov Igor V. , Zubkova Natalia V. , Yapaskurt Vasiliy O. , Polekhovsky Yury S. , Vigasina Marina F. , Belakovskiy Dmitry I. , Britvin Sergey N. , Sidorov Evgeny G. , Pushcharovsky Dmitry Y. 
Published: February 2017

AbstractThe new mineral melanarsite, K3Cu7Fe3+O4(AsO4)4, was found in the sublimates of the Arsenatnaya fumarole at the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka Peninsula, Russia. It is associated with dmisokolovite, shchurovskyite, bradaczekite, hematite, tenorite, aphthitalite, johillerite, arsmirandite, As-bearing orthoclase, hatertite, pharmazincite, etc. Melanarsite occurs as tabular to prismatic crystals up to 0.4 mm, separate or combined in clusters up to 1 mm across or in interrupted crusts up to 0.02 cm × 1 cm × 1 cm covering basalt scoria. The mineral is opaque, black, with a vitreous lustre. Melanarsite is brittle. Mohs' hardness is ∼4 and the mean VHN = 203 kg mm–2. Cleavage was not observed and the fracture is uneven.Dcalcis 4.39 g cm–3. In reflected light, melanarsite is dark grey. Bireflectance is weak, anisotropism is very weak. Reflectance values [R1–R2, % (λ, nm)] are 10.5–9.4 (470), 10.0–8.9 (546), 9.7–8.7 (589), 9.5–8.6 (650). The Raman spectrum is reported. Chemical composition (wt.%, electron microprobe) is K2O 10.70, CaO 0.03, CuO 45.11, ZnO 0.24, Al2O30.32, Fe2O36.11, TiO20.12, P2O50.07, As2O536.86, total 99.56. The empirical formula, based on 20 O apfu, is (K2.81Ca0.01)∑2.82(Cu7.02Fe3+0.95Al0.08Zn0.04Ti0.02)∑8.11(As3.97P0.01)∑3.98O20. Melanarsite is monoclinic, C2/c,a= 11.4763(9),b= 16.620(2),c= 10.1322(8) Å, β = 105.078(9)°,V= 1866.0(3) Å3andZ= 4. The strongest reflections of the powder X-ray diffraction pattern [d,Å(I)(hkl)] are 9.22(100)(110), 7.59(35)(1₃11), 6.084(17) (111), 4.595(26)(1₃31, 220, 2₃21), 3.124(22)(3₃31, 1₃51), 2.763(20)(400, 1₃52), 2.570(23)(043) and 2.473(16) (260, 2₃61, 350). Melanarsite has a novel structure type. Its crystal structure, solved from single-crystal X-ray diffraction data (R= 0.091), is based upon a heteropolyhedral pseudo-framework built by distorted Cu(1–3)O6and (Fe,Cu)O6octahedra and As(1–3)O4tetrahedra. Two crystallographically independent K+cations are located in the tunnels and voids of the pseudo-framework centring eight- and seven-fold polyhedra. The name reflects the mineral being an arsenate and its black colour (from the Greek μέλαν, black).
Determination of zeolite-group mineral compositions by electron probe microanalysis
Authors: Campbell L. S. , Charnock J. , Dyer A. , Hillier S. , Chenery S. , Stoppa F. , Henderson C. M. B. , Walcott R. , Rumsey M. 
Published: February 2017

AbstractA new protocol for the quantitative determination of zeolite-group mineral compositions by electron probe microanalysis (wavelength-dispersive spectrometry) under ambient conditions, is presented. The method overcomes the most serious challenges for this mineral group, including new confidence in the fundamentally important Si-Al ratio. Development tests were undertaken on a set of natural zeolite candidate reference samples, representing the compositional extremes of Na, K, Cs, Mg, Ca, Sr and Ba zeolites, to demonstrate and assess the extent of beam interaction effects on each oxide component for each mineral. These tests highlight the variability and impact of component mobility due to beam interaction, and show that it can be minimized with recommended operating conditions of 15 kV, 2 nA, a defocused, 20 μm spot size, and element prioritizing with the spectrometer configuration. The protocol represents a pragmatic solution that works, but provides scope for additional optimization where required. Vital to the determination of high-quality results is the attention to careful preparations and the employment of strict criteria for data reduction and quality control, including the monitoring and removal of non-zeolitic contaminants from the data (mainly Fe and clay phases). Essential quality criteria include the zeolite-specific parameters of R value (Si/(Si + Al + Fe3+), the 'E%' charge-balance calculation, and the weight percent of non-hydrous total oxides. When these criteria are applied in conjunction with the recommended analytical operating conditions, excellent inter-batch reproducibility is demonstrated. Application of the method to zeolites with complex solid-solution compositions is effective, enabling more precise geochemical discrimination for occurrence-composition studies. Phase validation for the reference set was conducted satisfactorily with the use of X-ray diffraction and laser-ablation inductively-coupled plasma mass spectroscopy.
Parabariomicrolite discredited as identical to hydrokenomicrolite-3R
Authors: Atencio Daniel 
Published: February 2017

AbstractProposal 16-C was accepted by the Commission on New Minerals and Mineral Names of the International Mineralogical Association, and parabariomicrolite is discredited as identical to hydrokenomicrolite-3R. There are now two type localities: Alto do Giz pegmatite, Equador Co., Rio Grande do Norte, Brazil and Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil.
Towards on-the-fly data post-processing for real-time tomographic imaging at TOMCAT
Authors: Marone Federica , Studer Alain , Billich Heiner , Sala Leonardo , Stampanoni Marco 
Published: February 2017

AbstractSub-second full-field tomographic microscopy at third-generation synchrotron sources is a reality, opening up new possibilities for the study of dynamic systems in different fields. Sustained elevated data rates of multiple GB/s in tomographic experiments will become even more common at diffraction-limited storage rings, coming in operation soon. The computational tools necessary for the post-processing of raw tomographic projections have generally not experienced the same efficiency increase as the experimental facilities, hindering optimal exploitation of this new potential. We present here a fast, flexible, and user-friendly post-processing pipeline overcoming this efficiency mismatch and delivering reconstructed tomographic datasets just few seconds after the data have been acquired, enabling fast parameter and image quality evaluation as well as efficient post-processing of TBs of tomographic data. With this new tool, also able to accept a stream of data directly from a detector, few selected tomographic slices are available in less than half a second, providing advanced previewing capabilities paving the way to new concepts for on-the-fly control of dynamic experiments.
SYRMEP Tomo Project: a graphical user interface for customizing CT reconstruction workflows
Authors: Brun Francesco , Massimi Lorenzo , Fratini Michela , Dreossi Diego , Billé Fulvio , Accardo Agostino , Pugliese Roberto , Cedola Alessia 
Published: February 2017

AbstractWhen considering the acquisition of experimental synchrotron radiation (SR) X-ray CT data, the reconstruction workflow cannot be limited to the essential computational steps of flat fielding and filtered back projection (FBP). More refined image processing is often required, usually to compensate artifacts and enhance the quality of the reconstructed images. In principle, it would be desirable to optimize the reconstruction workflow at the facility during the experiment (beamtime). However, several practical factors affect the image reconstruction part of the experiment and users are likely to conclude the beamtime with sub-optimal reconstructed images. Through an example of application, this article presents SYRMEP Tomo Project (STP), an open-source software tool conceived to let users design custom CT reconstruction workflows. STP has been designed for post-beamtime (off-line use) and for a new reconstruction of past archived data at user’s home institution where simple computing resources are available. Releases of the software can be downloaded at the Elettra Scientific Computing group GitHub repository https://github.com/ElettraSciComp/STP-Gui.
Prospects for atomic resolution in-line holography for a 3D determination of atomic structures from single projections
Authors: Chen F. -R. , Kisielowski C. , Van Dyck D. 
Published: February 2017

AbstractIt is now established that the 3D structure of homogeneous nanocrystals can be recovered from in-line hologram of single projections. The method builds on a quantitative contrast interpretation of electron exit wave functions. Since simulated exit wave functions of single and bilayers of graphene reveal the atomic structure of carbon-based materials with sufficient resolution, we explore theoretically how the approach can be expanded beyond periodic carbon-based materials to include non-periodic molecular structures. We show here theoretically that the 3D atomic structure of randomly oriented oleic acid molecules can be recovered from a single projection.
Association Between Anesthesiology Volumes and Early and Late Outcomes After Cystectomy for Bladder Cancer: A Population-Based Study
Authors: Jaeger Melanie T. , Siemens D. Robert , Wei Xuejiao , Peng Paul , Booth Christopher M. 
Published: February 2017

BACKGROUND:Hospital and surgeon volume are related to postoperative complications and long-term survival after radical cystectomy. Here, we describe the relationships between these provider characteristics and anesthesiologist volumes on early and late outcomes after radical cystectomy for bladder cancer.METHODS:Records of treatment and surgical pathology reports were linked to the population-based Ontario Cancer Registry to identify all patients with radical cystectomy in Ontario during 1994 to 2008. Volume was divided into quartiles and determined on the basis of mean annual number of hospital/surgeon/anesthesiologist radical cystectomy cases during a 5-year study period. A composite anesthesiologist volume also was used and defined as major colorectal procedures in addition to radical cystectomy given the similar complexity of these cases. Logistic and Cox proportional hazards regression models were used to explore the associations between volume and outcomes while adjusting for potential patient-, disease-, and system-related confounders. The primary outcomes were postoperative readmission rates, postoperative mortality, and 5-year survival.RESULTS:The study included 3585 patients with radical cystectomy between 1994 and 2008. Median annual anesthesiologist radical cystectomy volume was 1 (maximum 8.8 cases/year); lowest volume quartile (Q1) <0.6 cases/year and highest volume quartile (Q4) >1.4 cases/year. The median annual composite anesthesiologist volume was 9 radical cystectomy and colorectal cases (Q1 [range 0.2–6.4 cases/year], Q4 [range 11.8–29.2 cases/year]); subsequent analyses used this composite volume. Anesthesiologist volume was associated with readmission rates at 30 days (P= .02, Q1 mean = 27% vs Q4 mean = 21%) and at 90 days (P= .01, Q1 mean = 39% vs Q4 mean = 31%). In multivariable analysis, including the adjustment for surgeon and hospital volume, the cohort of anesthesiologists who performed the lowest volume of cases annually (Q1) was associated with greater rates of readmission at 30 days (OR 1.36, 95% confidence interval [CI], 1.09–1.71,P= .04) and at 90 days (OR 1.36, 95% CI, 1.11–1.66,P= .03). Anesthesiologist volumes were not associated with postoperative mortality or long-term survival.CONCLUSIONS:Anesthesiologist case volume for radical cystectomy was low, reflecting the lack of subspecialization in urologic procedures in routine clinical practice. Lower volume anesthesia providers were associated with higher readmission rates after radical cystectomy. Further studies are needed to validate this finding and to identify the processes that may explain an association between provider volume and patient outcome.
Requirements for Intermediaries and Advisors in the Area of Mortgages Resulting from Mortgage Credit Directive– Implications for Poland
Authors: Waliszewski Krzysztof 
Published: February 2017

Abstract
The dynamic development of the mortgage market, especially in the period before the current financial crisis, revealed that within the EU there are local mortgage credit markets and that it is necessary to harmonize the rules of the system and consumer protection within the Community. The intention of the creators of the Mortgage Credit Directive was to organize the mortgage lending market for residential purposes and make it transparent, as well as increase the safety of the consumer credit market, along the lines of what took place earlier in the consumer credit market regulations (The Consumer Credit Directives no. 2008/48/EC and earlier no. 87/102/EEC). The Mortgage Credit Directive implies for lenders - credit institutions to act at every stage of the lending process with respect to the consumer’s interest and to provide them with adequate services for their needs. Due to the large role of indirect distribution channels of mortgages by banks there are certain requirements for intermediaries, brokers and credit advisors. The implementation term of the Directive, appointed for March 2016, implies action to be taken in order to implement the provisions of this Directive into Polish law. The legislative process is being conducted by the Ministry of Finance and supported by the Group on implementation of the Mortgage Credit Directive operating with the Council of Financial Market Development.
Paper Profits From Value, Size and Momentum: Evidence from the Polish Market
Authors: Zaremba Adam , Konieczka Przemysław 
Published: February 2017

AbstractIn this paper we investigate sources and characteristics of value, size and momentum profits on the Polish stock market. The research aims to broaden the academic knowledge in a few ways. First, we deliver fresh out-of-sample evidence on value, momentum, and size premiums. Second, we analyze the interdependences among the factors. Third, we investigate whether the factor premiums are present after accounting for liquidity constraints. Fourth, we check whether the factor premiums are robust to transaction costs. Our research is based on all the stocks listed on the WSE in years 2001-2013. We find, that the value, momentum, and size premiums are to some extent present on the Polish market. Furthermore, they strengthen each other, but they disappear after accounting for transaction costs and liquidity.
Venture Capital and Private Equity Investment Preferences in Selected Countries
Authors: Dziekoński Krzystof , Ignatiuc Sławomir 
Published: February 2017

Abstract
Sources of capital to finance companies in the SME sector is one of the basic conditions for the functioning and development of enterprises, especially in the early phase of their development. Increasingly popular is the use of capital market instruments, Private Equity, Venture Capital, Business Angels or Mezzanine. Funding of this kind can finance risky investments in return for a higher expected rate of return on capital. Access to financial resources and the conditions under which entrepreneurs can use them can determine the introduction of new technology, new products and services, expand distribution channels, implement changes that may lead to the growth in competitiveness and above all, innovation, thus the growth of the company. The paper presents results of statistical analysis of the venture capital and private equity funds investment strategies in selected countries. As a result investment profiles are created.
Recent Aspects on the Effect of Inclusion Characteristics on the Intragranular Ferrite Formation in Low Alloy Steels: A Review
Authors: Mu Wangzhong , Jönsson Pär Göran , Nakajima Keiji 
Published: February 2017

AbstractIntragranular ferrite (IGF), which nucleates from specific inclusion surfaces in low alloy steels, is the desired microstructure to improve mechanical properties of steel such as the toughness. This microstructure is especially important in the coarse grain heat affected zone (CGHAZ) of weldments. The latest review paper focusing on the role of non-metallic inclusions in the IGF formation in steels has been reported by Sarma et al. in 2009 (ISIJ int., 49(2009), 1063–1074). In recent years, large amount of papers have been presented to investigate different issues of this topic. This paper mainly highlights the frontiers of experimental and theoretical investigations on the effects of inclusion characteristics, such as the composition, size distribution and number density, on the IGF formation in low carbon low-alloyed steels, undertaken by the group of Applied Process Metallurgy, KTH Royal Institute of Technology. Related results reported in previous studies are also introduced. Also, plausible future work regarding various items of IGF formation is mentioned in each section. This work aims to give a better control of improving the steel quality during casting and in the heat affected zone (HAZ) of weldment, according to the concept of oxide metallurgy.
A Quintic B-Spline Based Differential Quadrature Method for Numerical Solution of Kuramoto-Sivashinsky Equation
Authors: Mittal R. C. , Dahiya Sumita 
Published: February 2017

AbstractIn this paper, the Kuramoto-Sivashinsky equation is solved numerically by implementing a new differential quadrature technique that uses quintic B-spline as the basis functions for space integration. The derivatives are approximated using differential quadrature method. The weighting coefficients are obtained by semi-explicit algorithm including an algebraic system with penta-diagonal coefficient matrix that is solved using the five-band Thomas algorithm. Stability analysis of method has also been done. The accuracy of the proposed scheme is demonstrated by applying on five test problems. Some theoretical properties of KS equation like periodicity, monotonicity and dissipativity etc. have also been discussed. The results are also shown graphically to demonstrate the accuracy and capabilities of this method and comparative study is done with results available in literature. The computed results are found to be in good agreement with the analytical solutions.
Inhärentes oder externes ethos der Medizin?
Authors: Ringkamp Daniela 
Published: February 2017

Zusammenfassung
Der Beitrag argumentiert dafür, medizinische Notsituationen nicht durch ein eigenes, ausschließlich im medizinischen Tätigkeitsbereich geltendes Moralprinzip zu regulieren, sondern durch moralische Grundlagen zu normieren, die auch außerhalb der Medizin und des ärztlichen Berufsstandes Geltung beanspruchen. Ansatzpunkt ist dabei die Gegenüberstellung medizinischer und nicht-medizinischer Notfälle in Derek Parfits Emergency Principle aus dem fünfzehnten Kapitel von On What Matters. Parfit fordert, medizinischen Notlagen mit einem Instrumentalisierungsverbot zu begegnen, das den Patienten vor ärztlichen Inanspruchnahmen schützt. Durch Bezug zu den konträren Positionen von Edmund D. Pellegrino und Robert M. Veatch über die Möglichkeit eines der Medizin inhärenten ethos wird verdeutlicht, dass Parfits Argumentation insgesamt nicht überzeugt. Dies zeigt sich insbesondere ausgehend von Veatchs Bestimmung der Medizin als einer Praxis, deren Handlungsfelder von unterschiedlichen Akteuren und Intentionen gesteuert werden. Dieser Pluralismus spricht für die Plausibilität einer der Medizin externen Moral, die auch moderate Formen der Instrumentalisierung in der Medizin erlaubt.
Configuración de la prueba pericial en el proceso penal colombiano
Authors: Peláez Mejía José María , Sanabria Villamizar Ronald Jesús 
Published: February 2017

<p>Producto de la ley 906/2004 el régimen probatorio en materia penal sufrió cambios considerables no solo de orden procesal, los cuales son detectables a simple vista, sino sobre todo cambios de orden ideológico que reemplazaron el basamento principialístico de la anterior legislación. El presente artículo, teniendo como derrotero los principios probatorios del actual sistema de enjuiciamiento criminal en Colombia, la posición adoptada por la Corte Suprema de Justicia y la doctrina, pretende determinar los presupuestos de existencia o validez de la prueba pericial. Si bien el informe pericial es un elemento necesario, o en palabras de la Corte Suprema de Justicia un “germen de prueba”, para la futura formación de la prueba pericial en la audiencia de juicio oral −puesto que permite el idóneo ejercicio de derechos como la confrontación, la contradicción y la defensa− su constitución y contenido dependen exclusivamente de la declaración del perito en audiencia. </p>
El derecho a la libertad religiosa y de cultos en Colombia: evolución en la jurisprudencia constitucional 1991-2015
Authors: Escobar Delgado Ricardo Azael 
Published: February 2017

<p>El artículo desarrolla el tema de la libertad religiosa y de cultos en Colombia y su evolución a partir de las sentencias de la Corte Constitucional entre 1991 y 2015, con ocasión de los 25 años de la Constitución Política de 1991. Metodológicamente la investigación se realizó de manera deductiva e histórico-crítica, mediante el análisis del derecho a la libertad religiosa y de cultos en el sistema interamericano e internacional de los derechos humanos, ratificado por el Congreso de la República. Al igual que la jurisprudencia de la Corte Constitucional en torno al derecho a la libertad religiosa como una expresión individual y colectiva. Los resultados de la investigación evidenciaron que la evolución de estos derechos en el ordenamiento jurídico colombiano, está en consonancia con las transformaciones democráticas y jurídicas de la Constitución, y con los requerimientos de organismos internacionales de derechos humanos. </p>
Voluntades anticipadas en Colombia desde la resolución 1051
Authors: Bolívar Góez Piedad Lucía , Gómez Córdoba Ana Isabel 
Published: February 2017

<p>La voluntad anticipada es uno de los más poderosos instrumentos para la protección del derecho que tienen las personas de tomar decisiones autónomas sobre su cuerpo y salud, específicamente cuando han perdido su capacidad de razonar o de expresar sus deseos, como es el caso de algunos escenarios del final de la vida. Permite a las personas proyectar su autonomía en el tiempo.</p><p>En Colombia el derecho a suscribir el documento de voluntades anticipadas aparece por primera vez en la Ley 1733 de 2014, “que regula los servicios de cuidados paliativos para el manejo integral de pacientes con enfermedades terminales, crónicas, degenerativas e irreversibles” y posteriormente en la Resolución 1216 del 20 de abril del 2015, referente a las directrices para la organización y funcionamiento de los comités para hacer efectivo el derecho a morir con dignidad. No obstante, no significaba que anteriormente existiera un vacío jurídico al respecto, debido a que la voluntad anticipada presenta similitud con el consentimiento informado, como lo afirma la Corte Constitucional en la sentencia C-233 de 2014, por tanto se encuentran dentro del extenso marco constitucional, jurisprudencial y regulatorio que sobre el tema existe en el país. </p>