bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ein Blick in den Stollen von Skepsis: Vier Kapitel zur frühen Uberlieferung des Corpus Aristotelicum
Authors: Primavesi Oliver 
Published: March 2015

Abstract
The purpose of the paper is to defend a modified version of the report given by Strabo about the transmission of the writings of Aristotle during the Hellenistic period. The basic dilemma was pointed out by Dom Jean Liron in 1717: The existence of our Corpus Aristotelicum entails that Strabo must be exaggerating either in assuming that the manuscripts brought by Neleus to Scepsis were the only manuscripts of the Aristotelian and Theophrastean writings, or in asserting that these manuscripts were severely damaged. Many writings of our Corpus are missing in the Hellenistic catalogue of Aristotle's works while they are listed in the later catalogue of Ptolemy al-Gharïb; furthermore, the single books of the transmitted treatises are labelled by means of the pre-Hellenistic system of 24 letter labels, whereas in the Hellenistic catalogue the single books are numbered by means of the Hellenistic system of 27 alphabetic numerals. This suggests that the treatises missing in the Hellenistic catalogue formed part of a collection which was inaccessible in Hellenistic times and which, therefore, preserved the pre-Hellenistic system of book-labelling. After the rediscovery of the collection (ca. 100 BC) its system of book-labelling was maintained by the editors who laid the foundations of our Corpus. The same criterion reveals the Eudemian Ethics in eight books to be a later compilation.
Carbon Isotopic Composition Of Earlydiagenetic Methane: Variations With Sediments Depth
Authors: Jędrysek Mariusz Orion , Hałas Stanisław , Pieńkos Tomasz 
Published: March 2015

AbstractWe demonstrate the annual cycle of methane in fresh sediments of two lakes - Moszne (E Poland) and Skrzynka (W Poland). The vertical gradient in δ
Investigation of Blade Angle of an Open Cross-Flow Runner
Authors: Katayama Yusuke , Iio Shouichiro , Veerapun Salisa , Uchiyama Tomomi 
Published: March 2015

AbstractThe aim of this study was to develop a nano-hydraulic turbine utilizing drop structure in irrigation channels or industrial waterways. This study was focused on an open-type cross-flow turbine without any attached equipment for cost reduction and easy maintenance. In this study, the authors used an artificial indoor waterfall as lab model. Test runner which is a simple structure of 20 circular arc-shaped blades sandwiched by two circular plates was used The optimum inlet blade angle and the relationship between the power performance and the flow rate approaching theoretically and experimentally were investigated. As a result, the optimum inlet blade angle due to the flow rate was changed. Additionally, allocation rate of power output in 1st stage and 2nd stage is changed by the blade inlet angle.
Neural and Behavioral Correlates of Extended Training during Sleep Deprivation in Humans: Evidence for Local, Task-Specific Effects
Authors: Bernardi Giulio , Siclari Francesca , Yu Xiaoqian , Zennig Corinna , Bellesi Michele , Ricciardi Emiliano , Cirelli Chiara , Ghilardi Maria Felice , Pietrini Pietro , Tononi Giulio 
Published: March 2015

Recent work has demonstrated that behavioral manipulations targeting specific cortical areas during prolonged wakefulness lead to a region-specific homeostatic increase in theta activity (5–9 Hz), suggesting that theta waves could represent transient neuronal OFF periods (local sleep). In awake rats, the occurrence of an OFF period in a brain area relevant for behavior results in performance errors. Here we investigated the potential relationship between local sleep events and negative behavioral outcomes in humans.Volunteers participated in two prolonged wakefulness experiments (24 h), each including 12 h of practice with either a driving simulation (DS) game or a battery of tasks based on executive functions (EFs). Multiple high-density EEG recordings were obtained during each experiment, both in quiet rest conditions and during execution of two behavioral tests, a response inhibition test and a motor test, aimed at assessing changes in impulse control and visuomotor performance, respectively. In addition, fMRI examinations obtained at 12 h intervals were used to investigate changes in inter-regional connectivity.The EF experiment was associated with a reduced efficiency in impulse control, whereas DS led to a relative impairment in visuomotor control. A specific spatial and temporal correlation was observed between EEG theta waves occurring in task-related areas and deterioration of behavioral performance. The fMRI connectivity analysis indicated that performance impairment might partially depend on a breakdown in connectivity determined by a “network overload.”Present results demonstrate the existence of an association between theta waves during wakefulness and performance errors and may contribute explaining behavioral impairments under conditions of sleep deprivation/restriction.
MOD oxide buffer layers on metallic substrates for YBCO coated conductors
Authors: Augieri A. , Mancini M.R. , Vannozzi A. , Angrisani A. A. , Fabbri F. , Rizzo F. , Mancini A. , Rufoloni A. , Galluzzi V. , Celentano G. , Sotgiu G. 
Published: March 2015

ABSTRACTWe present a detailed study carried out on oxide buffer layers grown by Metal-Organic Decomposition (MOD) on metallic substrates for YBa2Cu3O7-x (YBCO) coated conductor applications. Precursor solutions have been made starting from acetates or pentanedionates and characterized by means of Differential Scanning Calorimetry (DSC) and Thermogravimetric (TG) analyses coupled with Fourier Transform Infra-Red spectroscopy (FT-IR). Thin buffer layers have been grown by spin-coating on Ni-5at.%W substrates. X-ray diffraction spectra (XRD), Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM) have been employed in order to optimize buffer layers in terms of film microstructure and surface quality, with the final aims of producing a suitable template for YBCO growth. It will be shown that the optimization of the recrystallization process can lead to high quality buffer layer allowing the growth of YBCO films showing good superconductive properties.
The Effect of Crystallographic Imperfections on the Photoluminescence of ZnO Thin Films
Authors: Kelly Matthew W. , Oder Tom N. , Solomon C. Virgil 
Published: March 2015

ABSTRACTZnO thin films were synthesized by radio-frequency (RF) magnetron sputtering of high purity ZnO solid targets on sapphire substrates. Depositions were carried out at selected temperatures between 293 K and 1173 K, and post-deposition annealing was performed at 1173 K for 3 min. in an O2 atmosphere. Samples for electron microscopy investigations were prepared by lift-out technique in a multi-beam FIB/SEM instrument. The ZnO thin films show generally uniform thickness (about 1µm), determined by transmission electron microscopy (TEM) imaging. Irrespective of the deposition temperature, the ZnO thin films are polycrystalline, with individual grains exhibiting columnar morphology with the long axis oriented perpendicular to the ZnO/sapphire interface. The grain size varies with the deposition temperature, and a direct correlation between grain size and photoluminescence has been observed. Analyses performed using low-temperature photoluminescence spectroscopy measurements at 12 K revealed luminescence peaks at 3.361, 3.317, 3.218 and 3.115 eV. The intensity of the luminescence peak at 3.317 eV decreased with increasing deposition temperature. The films deposited at lower temperatures also exhibited a higher density of stacking faults as observed from the atomic resolution TEM. The crystallographic imperfections/photoluminescence relationship is not clear. The purpose of this study is to quantify the observed crystallographic imperfections and understand their effect on the photoluminescence of undoped ZnO thin films deposited on sapphire substrates.
Growth and Characterization of Uniform Carbon Nanotube Arrays on Active Substrates
Authors: Zhang Qiuhong , Quinton Betty T. , Tsao Bang-Hung , Scofield James , Merrett Neil , Lawson Jacob , Yost Kevin , Elston Levi 
Published: March 2015

ABSTRACTCarbon nanotubes (CNTs) have unique thermal/electrical/mechanical properties and high aspect ratios. Growth of CNTs directly onto reactive material substrates (such as metals and carbon based foam structures, etc.) to create a micro-carbon composite layer on the surface has many advantages: possible elimination of processing steps and resistive junctions, provision of a thermally conductive transition layer between materials of varying thermal expansion coefficients, etc. Compared to growing CNTs on conventional inert substrates such as SiO2, direct growth of CNTs onto reactive substrates is significantly more challenging. Namely, control of CNT growth, structure, and morphology has proven difficult due to the diffusion of metallic catalysts into the substrate during CNT synthesis conditions. In this study, using a chemical vapor deposition method, uniform CNT layers were successfully grown on copper foil and carbon foam substrates that were pre-coated with an appropriate buffer layer such as Al2O3 or Al. SEM images indicated that growth conditions and, most notably, substrate surface pre-treatment all influence CNT growth and layer structure/morphology. The SEM images and pull-off testing results revealed that relatively strong bonding existed between the CNT layer and substrate material, and that normal interfacial adhesion (0.2‒0.5 MPa) was affected by the buffer layer thickness. Additionally, the thermal properties of the CNT/substrate structure were evaluated using a laser flash technique, which showed that the CNT layer can reduce thermal resistance when used as a thermal interface material between bonded layers.
The mechanical characterization of stacked, multilayer graphene cantilevers and plates
Authors: Sandoz-Rosado Emil J. , Smith Joshua T. , Oida Satoshi , Bai Jingwei , Wetzel Eric D. 
Published: March 2015

ABSTRACTThe mechanical properties of stacked graphene sheets with varying number of layers are examined. The stacked sheets are assembled by manually combining single layer CVD-grown graphene monolayers, resulting in a turbostratic multilayer graphene with irregular layer spacings greater than crystalline graphite. Due to the presence of multiple layers, the material is analyzed as a plate rather than a membrane. Bending stiffness is determined via the deflection of micron-scale cantilevers, prepared using focused ion beam milling, while in-plane tensile stiffness is characterized through center-loading of edge-supported circular specimens. Computational modeling and established analytical solutions are used to extract material and structural property information, and benchmark measured properties relative to complementary results from indentation tests. Stacked, few-layer CVD-grown graphene retains an in-plane elastic modulus of 350N/m/layer (corresponding to 1.04 TPa for an inter-layer spacing of 0.335nm), suggesting good load-sharing between stacked layers. Width-normalized bending stiffness was unmeasurable for cantilevers of 1 and 3 layers, while cantilevers of 5 and 10 layers had values of 11,100nN·nm and 1.3×106nN·nm respectively.
Bonding CVD Diamond to WC-Co by High Pressure - High Temperature Processing
Authors: Balzaretti Naira Maria , Pereira Altair Soria , Camerini Rafael Vieira , dos Santos Sérgio Ivan , da Jornada João Alziro Herz 
Published: March 2015

AbstractIn this work we investigate the effect of processing at high pressure-high temperature (HPHT) on the adhesion of CVD diamond coatings on WC-Co substrates. The samples consisted of WC-Co substrates coated with thin diamond films (10 – 40 μm thick) grown by microwave plasma (MWCVD) CVD. The substrates were previously etched in order to remove the Co from the surface region. The adhesion of the film and its wear resistance improved after the HPHT treatment. SEM images of the cross section of the coated substrate revealed that Co infiltrated back to the region where it was previously removed. The results indicate that it is possible to take advantage of the HPHT plants already available around the world to produce, besides PCD's and diamond powder, high-performance CVD diamond cutting tools with the advantage of requiring less demanding processing conditions.
Influence of cryopreservation and mechanical stimulation on equine Autologous Conditioned Plasma (ACP®)
Authors: Mageed M. , Ionita C. , Kissich C. , Brehm W. , Winter K. , Ionita J.-C. 
Published: March 2015

SummaryObjective: To determine the influence of cryopreservation at two different temperatures on platelet concentration, growth factor (GF) levels and platelet activation parameters in equine ACP®; moreover, to determine if adding mechanical ACP® stimulation to freeze-thaw activation amplifies GF release from platelets. Material and methods: Firstly, blood from five horses was used to prepare ACP®. Platelet, platelet derived growth factor BB (PDGF-BB) and transforming growth factor β1 (TGF-β1) concentrations as well as mean platelet volume (MPV) and mean platelet component (MPC) were determined in fresh and corresponding ACP® samples after 2 months cryopreservation at –20 °C and –80 °C, respectively. Secondly, ACP® was prepared from blood of nine horses. Half of ACP® was activated using one freeze-thaw-cycle at –20 °C, whereas the rest was first vortexed. Their PDGF-BB and TGF-β1 concentrations were subsequently determined. Results: Platelet concentration significantly decreased after –80 °C cryopreservation. PDGF-BB level augmented significantly after both storage methods, whereas TGF-β1 concentration was not significantly altered. MPV significantly increased after –20 °C cryopreservation. Both storage regimens induced a significant MPC decrease. No significant differences in GF concentrations between the vortexed and nonvortexed samples were detected. Discussion: Both cryopreservation methods induced platelet activation, but storage at –80 °C apparently harmed the platelets without generating higher GF release than –20 °C. The mechanical stimulation process could not enhance GF release in subsequently frozen-thawed ACP®. Conclusion and clinical relevance: Storage of ACP® at –20 °C could be useful in equine practice, but, before this procedure can be recommended, further qualitative tests are needed. The mechanical stimulation technique should be adjusted in order to increase platelet activation.
8. O ENSINO JURÍDICO ENTRE CONDICIONAMENTO E CRIATIVIDADE: DESAFIOS PARA SUPERAÇÃO
Authors: KRETSCHMANN Angela , OHLWEILER Leonel Pires 
Published: March 2015

<strong>Resumo: </strong><p>Após percorrer brevemente a evolução histórica da inserção das Escolas de Direito na sociedade brasileira, observando o contexto fatual no qual foram criadas, realizam uma avaliação crítica das condições para propositura de novos modelos de aprendizagem, e questionam, de modo especial, se é possível propor uma quebra de paradigma do atual modelo imposto pelo Ministério da Educação.</p>
Global urbanization as a shifting context for applying ecological science toward the sustainable city
Authors: Pickett Steward T. A. , Zhou Weiqi 
Published: March 2015

Abstract
There is an abundance of conceptual frameworks relevant to sustainability in urban systems. However, to advance urban ecological science and its application to sustainable urban transformations, key existing frameworks must be synthesized. This paper is a conceptual synthesis cast in essay form in order to encompass a broad range of relevant ideas. It starts from the premise that the familiar models of metropolitan and megalopolitan urban structure, of industrially driven urban development, and of the contrasts between urban and non‐urban lands are manifestly inadequate representations of evolving global reality. Such inadequacy is illustrated with examples from the United States and from China. Both the form and the interactions involved in contemporary urbanization and urban change suggest the need for a new integrated framework synthesizing two existing yet still evolving concepts: (1) The urban megaregion framework accommodates the spatial extent, interdigitation of contrasting land uses, and the linked spatial relations between nominally urban and nominally rural areas. (2) The new concept of the continuum of urbanity emphasizes the shifts in livelihood and lifestyle driven by regional and global teleconnections and their joint effects on local environments and landscapes. Together these frameworks suggest a common conceptual structure for addressing urban areas of different ages, sizes, forms, and dynamics in both urbanizing and urbanized areas in developing and developed countries and regions. The synthesis of frameworks points to empirical research needs, and has the potential to better match sustainability plans and actions with the diverse urban forms and dynamics now appearing around the world.
Change Management Enablers for Successful Workflow Conceptualization, Development and Implementation: Digital Oil Field Cases from Saudi Arabia
Authors: Velarde Salvador A. 
Published: March 2015

Abstract

Objectives/Scope:
This study presents change management key enablers to successful workflow conceptualization, automation and implementation portraying two digital oil field (DOF) process workflow blueprints as case studies. To achieve good performance, workflows are necessary to execute efficient processes that integrate people, processes and technology to support results.

Methods, Procedures, Process:
This case study shows change management procedures for successful adoption in the DOF. It includes the definition of enablers that lead to improved process efficiency. This includes workflow development and process reengineering from conceptualization to implementation. The procedure integrates process knowledge, cross-organizational collaboration, awareness and ownership as key enablers to successful adoption and execution.

Results, Observations and Conclusions:
Results and observations: The benefits of change management enablers in the DOF workflow cases are portrayed in terms of improved efficiency and performance measurement through the integration of knowledge management, process waste elimination, task automation and visualization. In one case study, non-value activities were discarded from implementation. This led to results with significantly reduced processing time. In another case study, the workflow execution led to performance improvement in equipment availability and design selection, minimizing waiting time and rework.

Conclusions:
Change management leads to successful process workflow development and execution. Further added value is achieved when change management implementation is aligned with objectives.

Novel/Additive Information:
This paper provides a valuable insight to applied case studies of DOF change management implementation. Here, the reader is walked through change management enablers to highlight the procedures for workflow conceptualization, development and implementation leading to success.
Big Data Every Day: Predictive Analytics Used to Improve Production Surveillance
Authors: Raphael Scott , Fuge Clara P. , Gutierrez Shawn , Kuzma Heidi A. , Arora Nimar S. 
Published: March 2015

Abstract
Terabytes of data are being collected every day in the oilfield. Intuition suggests that the more data the better and that if a little bit of information is valuable, then a lot must be incredibly more so. And yet, is it? It is not the data itself, but the ability to put it toward some useful task which matters. One of the most concrete ways in which Big Data can be brought to bear on the everyday is through predictive analytics, the science of using facts from the past to analyze the present and predict the future. In the oil field, a simple and powerful way of making use of data and predictive analytics is for automatic surveillance by exception. By learning from the past it is possible to predict what should be happening today and compare the prediction to what is actually going on. If the two do not match then a problem has been identified and a solution found. Addressing problems early is one of the cheapest ways to boost production.
Integrating Engineering and Operations for Successful HTHP Exploratory Drilling
Authors: Smith J. R. , Cade R. S. , Gatte R. D. 
Published: March 2015

Abstract
The Amoco Matagorda Island 636 #1 exploratory well was successfully drilled to 18,834 feet in 85 days. Both the depth and the drilling time were industry records for the 50 block area on trend with the well. The 357°F bottom hole temperature, required mud weights of up to 18.5 ppg, 8000+' of overpressured section, 2000+' of previously unexplored section, and the historical drilling problems in the area combined to make this well a special challenge. The results achieved validate the strategy that was developed to integrate engineering and operations as an example of how to meet such challenges successfully.
This paper focuses on describing this strategy, how it was developed and applied, and the results achieved relative to previous industry performance in the area. The crucial components of the strategy: planning, innovation, and teamwork, are discussed in detail. Specific examples of techniques, technology, tools, and our tactics for applying them are provided. These ranged from rigorous application of important industry standard practices to pure experimentation, as with previously untried bit designs, and included a comprehensive effort to achieve a positive synergy within both the drilling system we assembled and our organization for its operation.
Diseases of Abnormal Sensitivity to Cold in Children on Psychostimulant Drugs
Authors: Coulombe Jéarôcme , Powell Julie , Hatami Afshin , Mccuaig Catherine , Renet Sophie , Marcoux Danielle 
Published: March 2015

Background Oral psychostimulant (PS) drugs, the pharmacologic treatment of choice for attention-deficit/hyperactivity disorder (ADHD), have been associated with diseases of abnormal sensitivity to cold (DASC) such as Raynaud phenomenon and acrocyanosis. Objectives In a cohort of pediatric patients with DASC, we sought to identify prevalence and clinical features of patients on PS drugs. Methods A 6-year retrospective chart review (2005-2011) of Ste-Justine University Hospital Center DASC patients with and without exposure to PS drugs was performed. Clinical data were analyzed with descriptive statistical methods. Results Of 43 patients with DASC, 11 (25%) were exposed to PS drugs. In this group males were overrepresented, there was no evidence of collagen vascular diseases, serologic findings were not significant and the mean duration of PS intake was of 2.5 years. DASC age of onset was similar in both exposed and nonexposed patients. The incidence of more than one DASC type was greater in teenager patients with a positive family history of autoimmune and/or collagen vascular diseases. Limitations This study is limited by its small population size, short follow-up period and its retrospective nature. Conclusion Physicians should be aware of PS drugs as possible triggers for DASC.