bluuebunny/crossref_metadata_2025_split huggingface dataset:
Topaz and Some Materials with Thermoluminescent Properties and Potential Applications in Dosimetry
Authors: Trujillo-Vázquez E. , Pech-Canul M. I. 
Published: February 2015

ABSTRACTThis contribution presents a critical review about some materials used in dosimetry and the interest that has emerged on topaz recently. In addition, results about the feasibility for synthesizing topaz by the HYSY-CVD route using Na2SiF6 and Al2O3 are shown. Synthesis tests in nitrogen atmosphere were conducted varying temperature (700 and 750°C) and time (60 and 90 min) while maintaining constant the amounts of Al2O3 and Na2SiF6. The microstructural characterization by XRD, SEM and EDS revealed the succesful formation of topaz and aluminium fluoride.
Synthesis and Thermoluminescence of Scandium-Titanium Based Oxide Mixture
Authors: Muñoz Iliana C. , Cruz-Zaragoza Epifanio , Brown Francisco , Landavazo-Santos María A. , Alvarez-Montaño Victor E. 
Published: February 2015

ABSTRACTRecently, the research team synthesized some scandium- and titanium-based oxide compounds, in order to analyze their thermoluminescent (TL) response [1-2]. The oxides mixture Sc2TiO5:Eu2Ti2O7:Sc2O3 was synthesized in equilibrium phase by solid state reaction at 1100 °C / 48 h. The structural characterization was performed by XRD and SEM. The TL properties of this oxide mixture were examined after exposing it to gamma radiation from a 60Co source. The glow curve showed two main glow peaks at 151 °C and 260 °C, yet the curve shape looks quite complex, revealing that it is composed by overlapped individual TL peaks, which was confirmed with the Tstop preheat method performed [3]. The linear dose-response between 150 to 600 Gy was obtained, followed by a slow saturation stage. The intensity of the glow curves increases as the radiation dose increases, and their maxima remain at the same temperature values, which indicates that the TL phenomenon follows first-order kinetics [4]. After ten irradiation-TL readout cycles at 500 Gy, good stability (SD 2.02 %) between TL integrated response and the exposure dose was found. It is concluded that Sc2TiO5:Eu2Ti2O7:Sc2O3 is a promising material to use as high-dose dosimeter.
Temperature Effect on the Thermoluminescent Signal Induced by Gamma Radiation in NaCl
Authors: Anaya Demetrio Mendoza , González Martínez Pedro R. , Fernández García María E. , Galicia Gilberto Mondragón , Gutiérrez Wing Claudia E. 
Published: February 2015

ABSTRACTThe effects of thermal treatments on the thermoluminescent (TL) signal of NaCl (ACS reagent) induced by gamma radiation were investigated. Samples of NaCl were thermally treated at 500, 800 and 1000 °C and characterized by X-Ray diffraction and scanning electron microscopy. After their exposure 0.1 to 150 Gy of gamma radiation from a gamma-ray source of60Co, a TL curve for each temperature of treatment was obtained. We observed a different TL behavior on the irradiated samples as a function of the temperature applied during the thermal treatments. For the sample treated at 500 °C, three peaks centered at 102, 133 and 228 °C were observed. Samples treated at 800 and 1000 °C showed two main peaks at 128 and 220 °C and 136 and 219 °C, respectively; however, the highest TL intensity signal was observed for the sample at 800 °C. All samples showed a linear dependency of the integrated TL intensity from the signal emitted as function of the irradiation time. This is an important advantage because NaCl could be applied as a very low cost thermoluminescent dosimetric material. A comparison between the TL signal induced by gamma radiation in pure and Eu doped NaCl is also reported.
Phenolic Compounds Determination Using Enzyme Modified Clark Type Electrode
Authors: Stoytcheva M. , Zlatev R. , Montero G. , Beleño M.T. , Valdez B. , Schorr M. 
Published: February 2015

ABSTRACTPublic health and environmental protection concerns provoked by phenolic compounds pollution impose the development of sensitive, rapid and cost effective methods for in situ phenols monitoring. Given that biosensors based techniques could face these challenges, a variety of such devices was suggested and applied for phenolic compounds quantification. Their majority are based on the polyphenol oxidase (PPO) catalyzed phenols oxidation to catechol and then, to quinones, coupled with the registration of the quinones reduction current. Nevertheless, quinoid products polymerization involving electrode passivation corrupts the biosensors operational stability. Thus, to avoid this drawback, in this work is proposed another approach for phenolic compounds quantification based on the electrochemical detection of the oxygen depletion during PPO catalyzed catechol oxidation using a Clark type electrode with a disposable active enzyme membrane. The oxygen probe was modified in comparison to the commercial ones: its flat front allowed ensuring a good contact with the active enzyme membrane and the gold multicathode uniformly dislocated on the surface of the flat front permitted eliminating O2 diffusional constraints. The active enzyme membrane was prepared by drop-coating of a mixture of PPO and gelatin onto a gelatin-saturated cellulose filter. A linear calibration graph for catechol determination was obtained in the range up to 0.7 mM with a slope of 0.902 μA/mM, at pH 6.5 and ambient temperature. The steady-state response to catechol of the biosensor was reached in 120 s. The biosensor had an excellent reproducibility (RSD<3%) due to the reliable enzyme immobilization technique, allowing the preparation of active enzyme membranes with identical characteristics. The proposed biosensor provided stable response and free of interferences measurements since the unique possible electrochemical reaction is O2 reduction. Another biosensor advantage is associated with the use of disposable prefabricated active enzyme membranes.
Interactions of Potential Protein Cancer Biomarker Survivin with Plasmonic Nanoparticles and Its Dynamics in Cancer Cells Studied Using Fluorescence Molecular-Beacon Probes, Gated-RET and EQCN Methods
Authors: Stobiecka Magdalena , Chalupa Agata , Dworakowska Beata 
Published: February 2015

ABSTRACTThe protein survivin (Sur) has been considered as a potential cancer biomarker due to its involvement in disrupting normal cell cycle by stimulating proliferation and inhibiting cell apoptosis. In this work, we have focused on exploring novel platforms for sensitive monitoring of Sur expression, based on molecular beacons and protein modulation of plasmon-controlled fluorescence. In this framework, we show that Sur can be employed in gating the resonance energy transfer (gRET) between fluorescein isothiocyanate probe dye (FITC) and plasmonic citrate-capped gold nanoparticles (AuNP@Cit). Furthermore, we have designed fluorescent dye-bearing molecular beacons (MBs) targeting nucleotides of the survivin mRNA. The antisense oligonucleotide complementary to the target sequence, inserted in the loop area of the hairpin MB structure, has enabled the fluorescence turn-ON MB switching in the presence of the target, thus signaling the high Sur mRNA levels and enhanced Sur protein expression.
Social Network Diagramming as an Applied Tool for Public Health: Lessons Learned From an HCV Cluster
Authors: Grande Katarina M. , Stanley Marisa , Redo Carrie , Wergin Amy , Guilfoyle Sheila , Gasiorowicz Mari 
Published: February 2015

Objectives. We present an applied example of social network diagramming from 2010 to 2012 that was used to guide follow-up in a large HCV cluster in rural Wisconsin. Methods. In addition to collecting standard individual-level attributes, we also obtained partner-level information. Both sets of data were input into a network diagramming program to create a series of diagrams that emphasized variables, such as risk factors, key location in the network, and number of partners. Results. The visualization and cluster analysis guided testing and intervention priorities, were useful in sharing de-identified information about the cluster between health departments and community organizations and illustrated the key role young females played in holding the cluster together. Conclusions. Social network diagramming should be considered a practical and important public health tool for use in cluster management.
State Barriers to Appropriating Public Health Emergency Response Funds During the 2009 H1N1 Response
Authors: Yeager Valerie A. , Hurst David , Menachemi Nir 
Published: February 2015

Objectives. We examined state-specific administrative barriers to allocating 2009 H1N1 influenza public health emergency response (PHER) funds. Methods. We conducted a qualitative review of PHER grants management reports to identify and code barriers reported by states in allocating funds. Using linear regression, we examined the relationship between the percentage of funds allocated and each individual barrier and, separately, the cumulative effect of multiple barriers. Results. States reported 6 barrier types, including regulatory issues (n = 14, or 28%), contracting issues (n = 14, or 28%), purchasing issues (n = 6, or 12%), legislative issues (n = 5, or 10%), staffing issues (n = 5, or 10%), and issues transferring funds between state and local health departments (n = 4, or 8%). In multivariate models, having experienced a purchasing barrier was associated with a significant decrease in PHER allocation (B = −26.4; P = .018). Separately, the cumulative effect of having 3 barriers was associated with a decrease in PHER allocation (B = −16.0; P = .079). Conclusions. Purchasing barriers were associated with delayed use of PHER funds. Moreover, the cumulative effect of any 3 barriers hampered the allocation of funds. Understanding barriers to using funds can inform future funding guidance for improved efficiency of response efforts.
Rural Populations and Early Periodic Screening, Diagnosis, and Treatment Services: Challenges and Opportunities for Local Public Health Departments
Authors: Hale Nathan L. , Smith Michael , Hardin James , Brock-Martin Amy 
Published: February 2015

Objectives. We examined geographic differences in Early Periodic Screening, Diagnosis, and Treatment (EPSDT) visits as the South Carolina Department of Health and Environmental Control (SCDHEC) transitioned from direct service provision (DSP) to assuring delivery within the larger health care system. Methods. We examined infant cohorts with continuous Medicaid coverage and normal birth weights from 1995 to 2010. Outcome variables included any EPSDT visit and the ratio of observed to expected visits. Change in SCDHEC market share over time by residence was the primary variable of interest. We used growth curve models to examine changes in EPSDT visits by rural areas and levels of DSP over time. Results. A small proportion of the study population (10%) resided in rural counties that were more dependent on SCDHEC for DSP. The trajectory of not having visits among counties with high DSPs was steeper in rural areas (0.208; P = .001) compared with urban areas (0.145; P = .002). In counties with high DSPs, the slope of the predicted ratio in rural areas (–0.033; P < .001) was steeper than that of urban areas (−0.013; P < .001). Conclusions. Health departments operations continue to transition from DSP, which might decrease access to well-child care in rural communities. Health care reform provides opportunities for health departments to work with community partners to facilitate DSP from public to private sectors.
A Remotely Controlled Downhole Valve Used for Completion Installation
Authors: Carpenter Chris 
Published: February 2015

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 166271, ’A Case Study of Using a Remotely Controlled Downhole Valve for Completion Installation,’ by Keith Oddie, SPE, and John O'Hara, SPE, Halliburton, and Luis Paz, SPE, Hess Corporation, prepared for the 2013 SPE Annual Technical Conference and Exhibition, New Orleans, 30 September-2 October. The paper has not been peer reviewed.
On the basis of a case study in Equatorial Guinea, this paper demonstrates how barrier provisions with remotely controlled open/close technology capabilities enable interventions to be removed from a completion design. The technology described was used in a horizontal subsea producer well drilled to 3460 m. The paper will illustrate how combining downhole electronic control with a full-bore hydraulically operated barrier valve removes any need for running control lines to the surface. Surface-applied pressure and time combinations were used to command remote actuation of the valve.
Introduction
The Ceiba field is located 35 km offshore Equatorial Guinea, west Africa, and is 241 km south of the capital, Malabo. Located in approximately 700 m of water and in one of six subsea clusters in the development, this well was identified as a suitable candidate for inclusion of the technology outlined in this paper.
To maximize reservoir recovery in this field, the completion strategy included a horizontal openhole gravel pack to provide downhole sand control. The completion engineers felt that this strategy would help meet production objectives such as inflow performance. However, it would also require the well to be drilled at a highly deviated trajectory, which would increase the likelihood of the production packer being set at a deviation beyond conventional slickline capability. The remotely controlled downhole valve offered an alternative plugging method to set the packer, test production tubing, and commission subsurface well-control equipment requiring well interventions, and therefore was included for consideration in the well design. The well design would later confirm that the valve would be installed at a deviation greater than 70°.
Plug deployment with wireline and tractor was evaluated in terms of risk and exposure to cost, and from the results of the evaluation, it was concluded that remote technology should be included in the basis of design. A landing-nipple profile located below the packer provided contingency in the event that the remotely controlled valve failed to close.
The final subsea completion design required that the 547-m reservoir section be drilled along a horizontal trajectory, the openhole horizontal gravel-pack system be installed, and the gravel pack be performed. Retrieval of the gravel- pack service tool and wash pipe would mechanically close the fluid-loss control valve to provide isolation from the reservoir during deployment of the upper completion. It would also provide a means of applying the pressure and time signature required to close the barrier valve.
Hydraulic Monitoring and Well-Control-Event Detection With Model-Based Analysis
Authors: Carpenter Chris 
Published: February 2015

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper OTC 24803, ’Hydraulic Monitoring and Well-Control-Event Detection by Use of Model-Based Analysis,’ by D. Todorov and G. Thonhauser, Thonhauser Data Engineering, prepared for the 2014 Offshore Technology Conference Asia, Kuala Lumpur, 25-28 March. The paper has not been peer reviewed.
The major challenge in hydraulic modeling is that achieving a realistic representation of wellbore conditions is difficult in a mathematical model. This paper presents a new approach in monitoring the hydraulic system and in the recognition of well-control events at an early stage such that proper counteractions can be initiated before any damage occurs. A hydraulic real-time monitor based on sensor data has been developed, using artificial neural networks to compute, recognize, and predict abnormal events in the wellbore.
Introduction
Precise knowledge of hydraulic pressure while drilling is crucial for the success of the entire drilling process. The pump must operate within an accurate pressure range, providing the desired flow rate necessary for hole cleaning. The operating pressure is thereby concurrently limited by pipe and equipment constraints. Pore pressure, formation-fracture gradients, and equivalent circulating density (ECD) introduce additional complexity to the hydraulic system. However, when taking the complete drilling system under consideration, one must remember that severe challenges arise in representing the reality because of the restricted knowledge of several operational parameters at any point of time.
To improve the quality and reduce the influence of the detailed input parameters, the deterministic approach is improved by introducing numerical methods that add significantly to the performance of the system. The hybrid simulator is then in fact able to handle the uncertainties regarding the input data. Furthermore, a major step toward gaining optimal results is achieved by the implementation of automatic-drilling- operation recognition systems. These enhance the output of the numerical models and provide the means for operation-based monitoring and performance analysis.
Transient micromechanical deformation and thermomechanical fatigue damage in AlSi based piston alloys under superimposed high cycle mechanical and low cycle thermal loading*
Authors: Kenningley Scott , Morgenstern Roman 
Published: February 2015

Abstract
Presently, AlSi based alloys, consisting up to 12 element systems, are used in the manufacture of automotive pistons for diesel engines. The pistons combustion wall is subject to complex superimposed transient mechanical and thermal loading with peak operating temperature representing a homologous temperature range Thom of 0.8 to 0.9. Using a special superimposed thermomechanical bench test apparatus, engine-like TMF loading has been reproduced and a number of semi in-situ experiments have been carried out to evaluate key microstructure damage mechanisms. The evolution of microstructural damage at the interface between hard Si inclusions and the softer Al matrix has been documented using scanning electron microscopy. The deformation characteristics at the Si/Al interface have been recreated using FEA techniques incorporating non-linear elasto-viscoplastic properties for the matrix material. Comparisons of bench test fatigue lives for transient superimposed high frequency and microstructural TMF loading for two different thermal cycles are then compared to isothermal mechanical load histories.
Les numéraux indéfinis dits partitifs en polonais [So Called ‘Partitive’ Indefinite Numerals in Polish]
Authors: Menantaud Henri , Saloni Zygmunt 
Published: February 2015

So Called ‘ Partitive’ Indefinite Numerals in Polish
The article deals with the morphology, syntax and semantics of so called ‘ partitive’ indefinite numerals in Polish, i. e., mainly numerals of the DUŻO-type (‘ much’) and of the TYLE-type (‘ so many / so much’). In order to account for the behaviour of these numerals in combination with verbs governing the genitive, it seems necessary to distinguish two different values, traditionally labelled as the genitive, i. e., two ‘ subcases’ of the Polish genitive, and two different series of lexemes, partially homonymic,
TYLE1-type and TYLE2-type. Only the latter consists of semantically partitive numerals.
Littérature savante et assignation culturelle. Le Dictionnaire encyclopédique des amusemens des sciences mathématiques et physiques
Authors: Chabaud Gilles 
Published: February 2015

À la différence de l’Angleterre où elles sont une « tradition littéraire nationale » depuis le XVI e siècle, les « récréations mathématiques » ne se constituent en France comme une littérature de la « magie blanche dévoilée » qu’à la fin du XVIII e avec leur refonte complète en Dictionnaire (1792) par Panckoucke dans le contexte de la Révolution, quelque temps après le défi de la grande illusion du Joueur d’échecs automate, lancé par la cour de Vienne à l’Académie des sciences de Paris en 1783, et la publication de la Magie blanche dévoilée qui s’en suivra. La notion de contexte permet de comprendre comment le « livre des récréations mathématiques » a été plusieurs fois édité entre 1624 et 1630. Rééditées, plusieurs fois refondues, les « récréations mathématiques » se sont renouvelées, dans les années 1770, sur le modèle politique de la domination des sciences exactes pour l’explication de l’incompréhensible.
Comment la Première Guerre mondiale a-t-elle modifié notre perception de l'Histoire ?
Authors: Grondeux Jérôme 
Published: February 2015

La Première Guerre mondiale a été rapidement perçue comme l’ouverture d’une nouvelle ère. Il devint difficile de croire au progrès global de l’humanité, et la civilisation même sembla menacée. D’un côté, la victoire des Alliés charria son lot d’espérances et d’idées nouvelles, dont certaines se sont inscrites durablement dans la réalité occidentale, mais seulement après 1945. Aujourd’hui, le « court xx e siècle » qui s’étend de 1914 à 1991 est principalement défini par la guerre totale, le totalitarisme, la Guerre Froide et le projet d’organiser l’Europe, tous ces objets étant reliés les uns aux autres. Nous sommes les héritiers du « court xx e siècle », mais les enjeux de la Première Guerre mondiale semblent très loin de nous. Cependant, certains aspects de cette grande crise européenne peuvent être très profitables à étudier pour les Européens d’aujourd’hui, confrontés aux difficultés du monde d’après 1991.
Husserl et la Grande Guerre : l'irruption critique de l'histoire dans la phénoménologie
Authors: Farges Julien 
Published: February 2015

Cet article cherche à étayer l’hypothèse selon laquelle les grandes lignes de la pensée husserlienne de la crise de l’Europe ainsi que la philosophie téléologique de l’histoire, qui l’accompagne dans ses célèbres textes des années 30, s’enracinent à plusieurs titres dans l’expérience de la Première Guerre mondiale. Après un bref rappel biographique, l’article s’appuie tout d’abord sur la prégnance de la figure de Fichte aux yeux de Husserl, pour montrer que son patriotisme est plus éthique que politique et qu’il est compatible comme tel avec un cosmopolitisme dans le cadre d’une téléologie personnelle et supra-personnelle de la vocation où la guerre fait elle-même figure de crise. Puis il reconstruit l’émergence, dans les années de guerre, de deux éléments conceptuels essentiels à la conception husserlienne d’une crise de l’Europe : la phénoménologie génétique et l’idée d’une logique du monde, qui donnent respectivement à la subjectivité et à la théorie de la science un horizon historique.
D'une guerre à l'autre. Le Père Gaston Fessard et la conscience française (1935-1945)
Authors: Louzeau Frédéric 
Published: February 2015

À l’origine d’un monde nouveau, les trente ans de guerre mondiale (1914-1945) ont joué le rôle d’un immense incubateur pour la réflexion théologique et philosophique, dont l’œuvre du Père Gaston Fessard (1897-1978), s.j., a été l’une des plus novatrices quoiqu’encore largement inexplorée. L’article présente, dans un parcours thématique et historique restreint à la période 1935-1945, les grandes prises de position de l’auteur face aux guerres de son actualité, qui firent de lui le « directeur de conscience » de la conscience française et l’auteur d’une méthode de réflexion et de discernement participant à l’effort, encore inachevé, d’éclairer le mystère de l’homme social et historique.