bluuebunny/crossref_metadata_2025_split huggingface dataset:
E&P Notes (November 2016)
Authors: Jacobs Trent , Whitfield Stephen , Rassenfoss Stephen 
Published: January 2017

E&P Notes
After Years of Development, Nanoparticle Drilling Fluid Ready
Trent Jacobs, JPT Senior Technology Writer
The challenge for nanotechnology-based drilling fluids is that in order to gain acceptance, they cannot simply match the industry’s conventional chemistries— they must outperform them.
Calgary-based nFluids believes it is among the first to answer that call. The 4-year-old firm is now in the early stages of commercializing its nanoparticle additive that it says is compatible with all types of drilling fluids.
Based on results from nine pilot wells and an independent study by the University of Missouri, the company reports that its nano-additive has achieved up to a 60% increase in wellbore strength, a 90% reduction in fluid losses, and a 50% reduction in friction during drilling— with the latter translating to a faster rate of penetration.
Anticipation, Uncertainty High for Upcoming Mexico Auctions
Stephen Whitfield, Staff Writer
The opening of Mexico’s oil and gas sector was a landmark moment in the industry, but despite the potential upside, the uncertainty and risk surrounding unfamiliar offshore territory in a volatile price market kept many potential investors at bay. Today, more than a year after the first auction of shallow-water blocks, operators have a better idea of what to expect from Mexican authorities, but there are still questions left to be answered with more public bids on the horizon, an expert said.
In a presentation held by the SPE Gulf Coast Section’s International Study Group, Loren Long discussed Talos Energy’s decision to bid on Mexican shallowwater leases, its experiences operating in the country, and his outlook on upcoming auctions. Long is the managing director for Talos’ Mexican operations.
Energy Research Funding the Next Generation
Stephen Rassenfoss, JPT Emerging Technology Senior Editor
When Tom Williams was hired as president of RPSEA, one of the first things he did was change the title of the technology development organization’s September conference. At the end of The Best of RPSEA 10 Years of Research, he added, “and Beyond.”
The decision was made shortly before the September gathering because he said the original made it sound “like a funeral. You are saying this is it.”
That was a worry because the organization had failed to find funding to replace the dwindling cash flow from a US Department of Energy (DOE) program that the US Congress had killed before it was scheduled to expire.
At the meeting Williams emphasized, “It is not it. We are a viable organization that will keep going.”
SPE Annual Conference Confronts the Future
Authors: Donnelly John , Rassenfoss Stephen , Jacobs Trent 
Published: January 2017

Conference review
SPE held its first Annual Technical Conference and Exhibition in the Middle East in September, as 7,500 industry professionals from 94 countries met to discuss topics under the theme of “E&P 2.0: Transforming and Shaping the Future.”
The event took place at the Dubai World Trade Centre under the patronage of the Vice President and Prime Minister of the United Arab Emirates and Ruler of Dubai, His Highness Sheikh Mohammed bin Rashid Al Maktoum, and drew senior speakers from operators, service companies, and academia.
The conference opened with addresses from the leading executives of two of the region’s oil giants. Amin H. Nasser, president and chief executive officer (CEO) of Saudi Aramco, delivered the conference opening keynote address, and the welcome keynote speech was given by Abdul Munim Saif Al Kindy, director of exploration development and production for Abu Dhabi National Oil Company (ADNOC).
Both Nasser and Al Kindy struck similar themes about the need for both the industry and their respective state oil companies to change strategy in light of the oil and gas sector’s current economic challenges.
Despite growth in alternative energy sources, hydrocarbons will supply the world’s energy needs for years to come, said Nasser. He called the current oil industry in recovery mode but still weak. “Despite recent oil price volatility, the market is reaching balance,” but likely will remain volatile in the near term, he said. Firms with both upstream and downstream businesses will remain in better shape, he added.
Nasser laid out Saudi Aramco’s four-point framework for the future, which has similar applications to the broader industry, he said. The plan focuses on resilience, innovation, managing talent, and collaboration. Noting that many smaller companies have filed for bankruptcy because they were overleveraged, he emphasized that a strong financial position, and diversity beyond just the upstream, will help companies survive in times such as these. It also allows for continued investment in technology and building capable human resources.
Improvements in Root-Cause Analysis of Drillstring Vibration
Authors: Wilson Adam 
Published: January 2017

This article, written by Special Publications Editor Adam Wilson, contains highlights of paper IADC/SPE 178819, “Improvements in the Root-Cause Analysis of Drillstring Vibration,” by Jeremy A. Greenwood, SPE, Halliburton, prepared for the 2016 IADC/ SPE Drilling Conference and Exhibition, Fort Worth, Texas, USA, 1–3 March. The paper has not been peer reviewed.
Drillstring vibration is a leading cause of downhole-tool failure and premature wear of downhole equipment. The main challenges faced during drilling include performing rapid analyses to determine the root cause of the vibration, clear identification of the active mechanism, and implementation of the appropriate corrective action quickly enough to prevent failure. This paper describes a comprehensive methodology created to identify root causes, vibration mechanisms, and methods to reduce or eliminate drillstring vibration.
Introduction
A bottomhole assembly (BHA) and drillstring have six degrees of freedom and three dominant modes of vibration: axial, lateral, and torsional. This movement is used to describe the different vibration mechanisms such as stick/slip; bit bounce; bit whirl; BHA whirl, both forward and backward; torsional resonance; bit chatter; modal coupling; and lateral shocks. Data are collected from downhole and surface sensors, as well as cuttings analyses, that measure modes and magnitudes of vibration, tension, compression, and bending within the BHA; drilling parameters; fluid properties; and lithology and rock properties. The methodology uses some or all of these factors to identify the root cause and is enhanced by the ability to summarize the distribution of vibration levels across a run, by histogram analysis, and by the ability to filter across time or depth ranges and filter further on the basis of rig-activity codes. A combination of factors generates or influences drillstring vibration, including the energy inputs of weight on bit and torque; bit type; BHA design and stabilization; lithology type; geological structures; bit/lithology interaction; borehole and BHA size; hole trajectory; back-reaming or rotating off-bottom; hole enlargement; the rig’s electrical system; and, on offshore floating vessels, rig heave.
Philosophy as Verse-Performance: five poems and a formalist prospectus
Authors: Norris Christopher 
Published: January 2017

This article consists of five poems and an introductory essay. The poems are intended on the one hand to make a case for the currently underrated virtues of poetic formalism, i.e., for the revival of rhyme and meter as aspects of poetic practice. On the other they argue for a distinctly philosophical mode of poetry that embraces the values of conceptual or rational discourse as against a romantic-modernist conception premised on the intrinsic superiority of lyric, metaphor, symbol, analogy, and suchlike touchstone values. These issues are laid out programmatically in the opening essay and developed in a more performative as well as formal way in the five poems.
Effects of a combination of acepromazine maleate and butorphanol tartrate on conventional and two-dimensional speckle tracking echocardiography in healthy dogs
Authors: Santarelli Giorgia , López Jesús Talavera , del Palacio Josefa Fernández 
Published: January 2017

Abstract
OBJECTIVE To determine effects of a combination of acepromazine maleate and butorphanol tartrate on conventional echocardiographic variables and on strain values obtained by use of 2-D speckle tracking echocardiography (STE) in healthy dogs.
ANIMALS 18 healthy medium- and large-size adult dogs.
PROCEDURES Transthoracic echocardiographic examination (2-D, M-mode, color flow, spectral Doppler, and tissue Doppler ultrasonography) and high-definition oscillometric blood pressure measurement were performed before and after dogs were sedated by IM administration of a combination of acepromazine (0.02 mg/kg) and butorphanol (0.2 mg/kg). Adequacy of sedation for echocardiographic examination was evaluated. Circumferential and longitudinal global and segmental strains of the left ventricle (LV) were obtained with 2-D STE by use of right parasternal short-axis and left parasternal apical views. Values before and after sedation were compared.
RESULTS The sedation combination provided adequate immobilization to facilitate echocardiographic examination. Heart rate and mean and diastolic blood pressures decreased significantly after dogs were sedated. A few conventional echocardiographic variables differed significantly from baseline values after sedation, including decreased end-diastolic LV volume index, peak velocity of late diastolic transmitral flow, and late diastolic septal mitral and tricuspid annulus velocities, increased ejection time, and increased mitral ratio of peak early to late diastolic filling velocity; global strain values were not affected, but 1 segmental (apical lateral) strain value decreased significantly.
CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that acepromazine and butorphanol at the doses used in this study provided sedation adequate to facilitate echocardiography, with only mild influences on conventional and 2-D STE variables.
The Explicit Inverses of CUPL-Toeplitz and CUPL-Hankel Matrices
Authors: Jiang Zhao-Lin , Chen Xiao-Ting , Wang Jian-Min 
Published: January 2017

AbstractIn this paper, we consider two innovative structured matrices, CUPL-Toeplitz matrix and CUPL-Hankel matrix. The inverses of CUPL-Toeplitz and CUPL-Hankel matrices can be expressed by the Gohberg-Heinig type formulas, and the stability of the inverse matrices is verified in terms of 1-, ∞- and 2-norms, respectively. In addition, two algorithms for the inverses of CUPL-Toeplitz and CUPL-Hankel matrices are given and examples are provided to verify the feasibility of these algorithms.
What Need is There for an Environmental Aesthetics?
Authors: Harries Karsten 
Published: January 2017

What need is there for an environmental aesthetics? The answer to that question is by no means obvious. To be sure, that we need to protect our environment has become a cliché that I am just a bit wary about repeating it here – the statement hardly bears much discussion any longer. Is it not obvious that we need to make sure that all those natural resources on which we depend for our survival will continue to be available, not just to us, but to future generations? And when we think here of natural resources, we should consider them in the widest possible sense so that they include what the ancients thought of as the four elements, air, water, earth and fire. And here I invite you to think of them in their modern transformations. Even space has become an increasingly scarce resource. But if all this is indeed obvious, if the facts today speak loudly enough, it is not at all clear why we should be in need of an environmental aesthetics? What, if anything, does aesthetics have to contribute to our attempt to meet the environmental problems we face?
Morally Wrong Beauty as a Source of Value
Authors: Alcaraz León María José 
Published: January 2017

In this paper I would like to address the problem of the aesthetic value of damaged nature. A variety of arguments have been offered in order to ground the view that we cannot perceive damaged nature as beautiful, at least as soon as we are aware of its damaged condition. These arguments are usually offered in tandem with a view about what the correct appreciation of nature involves and, hence, are often supported by this view. I will try to show that none of these arguments are compelling and that there seems to be a way of explaining how damaged nature can be beautiful without disposing of the intuition that the awareness of its damaged condition penetrates our perception.
Prevalência do transtorno de déficit de atenção e hiperatividade (TDAH) em uma Escola Pública da cidade de Salvador, BA
Authors: Oliveira Dagoberto Bonavides de , Barreto Nilo Manoel Pereira Vieira , Oliveira Irismar Reis de 
Published: January 2017

<p><strong>Introdução:</strong> o Transtorno de Déficit de Atenção e Hiperatividade (TDAH) surge na infância atingindo de 3 a 6% das crianças e adolescentes e pode acompanhar o indivíduo por toda a vida. Segundo os critérios do DSM-5, o TDAH pode apresentar seus sintomas em três diferentes tipos, incluindo desatenção, hiperatividade-impulsividade ou apresentação combinada entre os dois sintomas referidos. Quando a criança/adolescente apresenta sintomas predominante do tipo desatento, há maiores prejuízos de aprendizagem. Na apresentação predominantemente hiperativa/impulsiva, o indivíduo apresenta maior prejuízo nas interações sociais. Na apresentação combinada, o prejuízo incide tanto na aprendizagem como nas interações sociais. <strong>Objetivo</strong>:<em> </em>verificar a prevalência do TDAH em crianças e adolescentes em uma escola pública na cidade de Salvador, estado da Bahia. <strong>Metodologia</strong>:<em> </em>estudo de prevalência de TDAH realizado no ano de 2016. A população foi composta por alunos cursando do 6ª ao 9ª ano do ensino fundamental II, com idades entre 10 a 17 anos. <strong>Resultados</strong>:<em> d</em>o total de uma população de 363 alunos, fizeram parte do estudo 265. Foi verificada uma prevalência de TDAH na ordem de 16,6%. A prevalência entre os sexos foi na proporção de 1,6:1 entre feminino e masculino. Neste estudo foi observada maior prevalência de TDAH, com subtipo desatento, em estudantes do sexo feminino e no subtipo hiperatividade, em estudantes masculinos. <strong>Conclusão</strong>: o estudo presente corrobora com as pesquisas<em> </em>recentes sobre as altas taxas de prevalência, o que demonstra necessidade de intervenções eficazes para a população infanto-juvenil. </p>
Avaliação neuropsicológica abrangente de crianças e adolescentes com anemia falciforme e acidentes vasculares encefálicos: relato de casos
Authors: Nunes Samantha , Nogueira Zeni Drubi , Toralles Maria Betânia Pereira , Argollo Nayara , Sena Eduardo Pondé de 
Published: January 2017

<p><strong>Introdução</strong>: em crianças e adolescentes com Anemia Falciforme, características específicas como anemia, hipoxemia crônica, infartos cerebrais e alterações nutricionais sobre o cérebro têm repercussão negativa no desenvolvimento neurocognitivo. <strong>Objetivo</strong>: avaliar inteligência, cognição e comportamento de crianças e adolescentes com Anemia Falciforme, acometidos por infartos cerebrais. <strong>Metodologia</strong>: estudo observacional, descritivo, tipo casuística hospitalar realizado com crianças e adolescentes com hemoglobinopatia do tipo Hb SS, idade 6 a 15 anos. Foi aplicado o questionário Critério Brasil de Classificação Socioeconômica. A avaliação neuropsicológica foi realizada através do teste NEPSY-II, o Quociente Intelectivo estimado foi obtido através das Escalas Weschsler de Inteligência-III e aplicado aos responsáveis o questionário Child Behavior Checklist, para avaliação comportamental. <strong>Discussão</strong>: nenhum paciente atingiu escores esperados para idade nos domínios avaliados, bem como não alcançou resposta dentro da média em todos subtestes de um domínio. Todos os casos apresentaram baixos índices de QI, indicando presença de déficit cognitivo global. Um indivíduo apresentou transtorno de ansiedade, depressão e problemas sociais. A ocorrência de infarto cerebral predispõe a alterações mais graves no desenvolvimento intelectivo e/ou cognitivo, reduzindo possibilidades de desenvolvimento acadêmico e de competitividade no mercado de trabalho. <strong>Conclusão</strong>: todos os pacientes demonstraram comprometimento cognitivo global. Nenhum paciente atingiu os escores esperados para idade em pelo menos um dos domínios avaliados. Além dos déficits cognitivos, sintomas de Transtorno de Ansiedade, Transtorno Depressivo e Problemas sociais foram identificados em um dos casos.</p><p> </p>
NEAT1 induces epithelial‐mesenchymal transition and 5‐FU resistance through the miR‐129/ZEB2 axis in breast cancer
Authors: Li Xuerui , Wang Shuxia , Li Zhenzhong , Long Xiaoyu , Guo Zibai , Zhang Guochun , Zu Jian , Chen Yu , Wen Linzhu 
Published: January 2017

DOI: 10.1002/1873‐3468.12474The above article from FEBS Letters, published online on 1 November 2016 in Wiley Online Library (http://wileyonlinelibrary.com), has been withdrawn by agreement between the Journal Managing Editor, Felix Wieland, and John Wiley & Sons Ltd., on behalf of Federation of European Biochemical Societies. The withdrawal has been agreed following an investigation by the Journal's Editorial Office that found that the data in Figures 4C and 4E appears to have been manipulated.
Observations of the shape and group dynamics of rogue waves
Authors: Gemmrich Johannes , Thomson Jim 
Published: January 2017

AbstractSurface elevation records from two locations in the northeast Pacific are used to examine rogue waves and the relationship to wave groups. Three hundred individual rogue waves with heights greater than 2.2 times the significant wave height are found in analyzing >2 × 106 wave groups. In contrast to recent nonlinear modeling results, we do not find that rogue waves occur at the front of wave groups. There is a tendency for steep waves to occur at the front of a group, but these are not the largest waves of the group and do not meet the rogue wave criterion. Rogue waves are most commonly located in the center of the group, but their height ratio to the neighboring crest is greater than in the average wave group. Assessing group dynamics in terms of spectral width suggests that random superposition of nonlinear waves is sufficient to explain the observations of individual rogue waves.
Assessment of uncertainties in global land cover products for hydro‐climate modeling in India
Authors: Madhusoodhanan C. G. , Sreeja K. G. , Eldho T. I. 
Published: January 2017

AbstractEarth's land cover (LC) has significant influence on land‐atmospheric processes and affects the climate at multiple scales. There are multiple global LC (GLC) data sets which are yet to be evaluated for uncertainties and their propagation into the simulation of land surface fluxes (LSFs) in land surface/climate modeling. The present study assesses the uncertainties in seven GLC products with reference to a regional data set for the simulation of LSFs in India using a macro‐scale land surface model. There is considerable overestimation of the extent of croplands in most of the GLCs. The uncertainties in LCs exert significant bias in the simulation of the LSFs of actual evapotranspiration (ETa), latent heat (LE), and sensible heat (H) fluxes. Uncertainty propagation in LSFs is proportional to the bias in cropping intensity under rainfed condition. The high underrepresentation of cropland area in the UMd data set results in highest bias in LSFs whereas the least cropland bias in Globland30 leads to least bias. Irrigation has higher potential to alter the LSFs than uncertainties related to LC especially in regions with large area under irrigation like India. The changes in LSFs are higher in arid/semiarid regions with medium irrigation intensity than in subhumid regions with high irrigation intensity. This has significant implications for the country's future irrigation expansion plans in the arid/semiarid regions. The study also emphasizes the need for focused efforts to quantify the uncertainties from varying irrigation intensities in the next generation CMIP6 experiments.
Why were Sardinians the shortest Europeans? A journey through genes, infections, nutrition, and sex
Authors: Pes Giovanni Mario , Tognotti Eugenia , Poulain Michel , Chambre Dany , Dore Maria Pina 
Published: January 2017

AbstractSince ancient times the Mediterranean island of Sardinia has been known for harboring a population with an average body height shorter than almost every other ethnic group in Europe. After over a century of investigations, the cause(s) at the origin of this uniqueness are not yet clear. The shorter stature of Sardinians appears to have been documented since prehistoric times, as revealed by the analysis of skeletal remains discovered in archaeological sites on the island. Recently, a number of genetic, hormonal, environmental, infective and nutritional factors have been put forward to explain this unique anthropometric feature, which persisted for a long time, even when environmental and living conditions improved around 1960. Although some of the putative factors are supported by sound empirical evidence, weaker support is available for others. The recent advent of whole genome analysis techniques shed new light on specific variants at the origin of this short stature. However, the marked geographical variability of stature across time and space within the island, and the well‐known presence of pockets of short height in the population of the southern districts, are still puzzling findings that have attracted the interest of anthropologists and geneticists. The purpose of this review is to focus on the state‐of‐the‐art research on stature, as well as the factors that made Sardinians the shortest among Europeans.
One‐Pot N‐Deprotection and Catalytic Intramolecular Asymmetric Reductive Amination for the Synthesis of Tetrahydroisoquinolines
Authors: Zhou Huan , Liu Yuan , Yang Suhua , Zhou Le , Chang Mingxin 
Published: January 2017

AbstractA one‐pot N‐Boc deprotection and catalytic intramolecular reductive amination protocol for the preparation of enantiomerically pure tetrahydroisoquinoline alkaloids is described. The iodine‐bridged dimeric iridium complexes displayed superb stereoselectivity to give tetrahydroisoquinolines, including several key pharmaceutical drug intermediates, in excellent yields under mild reaction conditions. Three additives played important roles in this reaction: Titanium(IV) isopropoxide and molecular iodine accelerated the transformation of the intermediate imine to the tetrahydroisoquinoline product; p‐toluenesulfonic acid contributed to the stereocontrol.
Efficient Hydrogen Evolution Electrocatalysis Using Cobalt Nanotubes Decorated with Titanium Dioxide Nanodots
Authors: Feng Jin‐Xian , Xu Han , Dong Yu‐Tao , Lu Xue‐Feng , Tong Ye‐Xiang , Li Gao‐Ren 
Published: January 2017

AbstractTiO2 Co nanotubes decorated with nanodots (TiO2 NDs/Co NSNTs‐CFs) are reported as high‐performance earth‐abundant electrocatalysts for the hydrogen evolution reaction (HER) in alkaline solution. TiO2 NDs/Co NSNTs can promote water adsorption and optimize the free energy of hydrogen adsorption. More importantly, the absorbed water can be easily activated in the presence of the TiO2–Co hybrid structure. These advantages will significantly promote HER. TiO2 NDs/Co NSNTs‐CFs as electrocatalysts show a high catalytic performance towards HER in alkaline solution. This study will open up a new avenue for designing and fabricating low‐cost high‐performance HER catalysts.