bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improving the Accuracy and Reliability of MWD Magnetic Wellbore Directional Surveying in the Barents Sea
Authors: Edvardsen I. , Nyrnes E. , Johnsen M. G. , Hansen T. L. , Løvhaug U. P. , Matzka J. 
Published: June 2014

Abstract
The years ahead will see increased petroleum-related activity in the Barents Sea with operations far off the coast of Norway. The region is at high geomagnetic latitude in the auroral zone, and therefore, directional drilling using magnetic reference will experience enlarged azimuth uncertainty compared to operations in the Norwegian and North Seas. Two main contributors to azimuth uncertainty are magnetic disturbances from electric currents in the ionosphere and axial magnetic interference from the drillstring. The former is more frequent in the Barents Sea than further south and the effect of the latter is increased because of diminished value of the magnetic horizontal component. Directional wellbore surveying for operations on the continental shelf in the North Sea and the Norwegian Sea rely on well-established procedures for near real-time magnetic monitoring using onshore magnetic reference stations. The different land and sea configuration, distant offshore oil and gas fields, higher geomagnetic latitude and different behavior of the magnetic field require the procedures to be reassessed before applied to the Barents Sea. To reduce drilling delays, procedures must be implemented to enable efficient management of magnetic disturbances. In some areas of the Barents Sea, the management requires new equipment to be developed and tested prior to drilling, such as sea-bed magnetometer stations. One simple way to reduce drillstring interference is increasing the amount of non-magnetic steel in the bottomhole assembly (BHA). To maintain azimuth uncertainty at an acceptable level in northern areas, it is crucial that directional wellbore surveying requirements are given high priority and considered early during well planning. During the development phase of an oil and gas field, the planned wells must be assigned adequate positional uncertainty models and if possible, be designed in a direction that minimizes the wellbore directional uncertainty.
Angola Ultra-Deepwater Development: Pinnacle Completion Designs Deliver Prolific Production
Authors: Peña J. F. , Joseph A. Q. , Oakey N. , McNerlin B. , Ralph S. A. 
Published: June 2014

Abstract
BP's largest subsea development, PSVM, sits in water depths of 2,000 metres located north-west of Luanda in block 31. It's the first ultra-deepwater development in the continent of Africa and the most expansive sub-sea development in the industry to date due to the combination of water depth and geographical spread. From the initial discoveries in 2002 to 2004, and as early project planning took shape in late 2005, it was realised the scale of the development, water depth, and location would present new challenges to the industry and BP.
Given the reservoir quality, sand distribution, and highly unconsolidated formations, all zones of interest in the development require sand control completions. Because of the ultra-deep water depth and subsea infrastructure, intervention operations and costs are prohibitive; thus, completions are designed to minimize the need for interventions during the life of the well. This objective has driven the need for robust equipment design with respect to longevity, corrosion, erosion-resistant, and remote monitoring and control.
The production wells were completed as open hole gravel packs, resulting in technical limit productivity along with exceptional mechanical reliability and integrity. All wells completed to date have shown zero formation damage, contributing to the planned field plateau production output of 150 Mbpd. To sustain this production capability, voidage replacement is important and therefore, the injection wells are mandated to deliver equivalent well performance through the use of effective sand-control completion designs. Based on this, cased hole frac-pack completions were selected for the initial gas injection wells and stand-alone screen completions for the water injectors. The injectors have set the bar for flow efficiency in high transmissibility reservoirs and are some of the largest injector completions in BP's portfolio.
This paper discusses the keys to the successful delivery and well productivity of the first 7 out of 40 wells of this world class ultra-deep subsea development. It reviews the PSVM completion basis of design as well as incorporates completion best practices and lessons inherited from BP Angola's first deepwater project, Greater Plutonio and Angola Joint Venture operations (White et al, 2008).
Autonomous ICD Installation Success in Ecuador Heavy Oil: A Case Study
Authors: Least Brandon , Bonner Aaron , Regulacion Rhandy , Peñaranda Robert , Sampedro Tito , Coloma Francisco 
Published: June 2014

Abstract
New technology has been called upon in Ecuador to help increase reserves and optimize the management of fluid in several reservoirs. Autonomous Inflow Control Devices (AICD) have provided increased oil production and decreased water production with installations in the Ginta field. When compared to neighboring wells completed with stand-alone screen technology and producing the same total liquid, the AICD installation initially produced more oil with a lower water cut percentage. Over several months, the water cut in the AICD installation eventually reached a similar level to that of offset completions; however, allowed significant more oil recovery prior to reaching that point. The heavy oil in these fields is approximately 60cP in viscosity. The wells are still in the evaluation phase; however, early data is of interest.
Due to its autonomous sensing functionality, fluid viscosity dictates the path the produced fluid will take through the AICD. Higher viscosity oil takes a relatively non-restrictive path whereas low viscosity water is sent on a tortuous path causing a decrease in flow rate through that particular tool. A well completed with a system of AICDs and oil swelling packers for annular isolation restricts zones with high water ratios which in turn stimulates neighboring oil zones.
This paper presents oil production data over time for two AICD heavy oil installations in Ecuador and compares the data to that from neighboring wells in the field. The benefit of AICD technology for reservoir management and production optimization will be discussed.
Case History: Performance of a Drilling Campaign in the Santos Basin, Brazil, 2008-2010: A Success Story
Authors: Carrizo Humberto Julio , Ortuno Giovanny , Neto Tarcilio Dutra 
Published: June 2014

Abstract
This paper describes the evolution in well design and continuous improvement actions during the execution of five shallow and deepwater wells drilled by Repsol using a third generation semi-submersible rig from 2008 until 2010 and the overall improvements from the first well to the end of the campaign.
Sharing this experience will benefit the future construction of post-salt shallow and deepwater wells with oil and gas objectives.
A multidisciplinary team of geologists and drilling engineers started work on these projects in 2007, gathering and analyzing available offset well data from The Santos Basin.
Initially, the quantity of casing and casing point selection followed what had been done in the majority of previous offset wells and the prediction of shallow hazards was performed using the available 3D data.
The knowledge acquired from the top hole sections during the operation of the first well, and more precise pore pressure prediction, allowed us to change the well design for the appraisal well, leaving out a casing point and changing the casing point selection strategy. Later, a more reliable shallow hazard prediction using new 2D high resolution seismic data permitted us to apply the same concept in an exploration well.
As part of the continuous improvement approach followed during well operations the QA/QC procedures were tightened throughout the campaign. The proper use of After Action Reviews at the completion of each well phase was paramount for the lessons learnt from each well and their application to subsequent wells.
Well design optimization and operational performance allowed for a reduction in the number of dry hole days per 1000 m from around 20 to approximately 9.
Good team work between onshore and offshore personnel contributed to a reduction in flat time and an increase in drilling efficiency which contributed to this success story.
The data is of relevance to other oil companies which plan to drill in the Santos Basin and other similar conditions. The achievement of drilling the best well in class, in terms of drilling performance, indicates the success of the planning and execution of the drilling campaign.

Introduction
The drilling exploration campaign during 2008-2010 in the Santos Basin using a moored semi-submersible drilling rig was the first done in Brazilian waters using a floating rig by Repsol Sinopec Brasil (RSB). The blocks where operations were performed are from ANP round number 7 and the wells are located approximately 180 NM from the shore base. The wells drilled were post-salt prospects in shallow and deepwater at the Santos Basin. The map in Fig. 1 shows the well locations for A, B, C, D and E. In the lower right of this figure is the order that they were drilled together with the water depths.
A toolbox to improve algorithms for insulin-dosing decision support
Authors: Donsa K. , Plank J. , Schaupp L. , Mader J. K. , Truskaller T. , Tschapeller B. , Höll B. , Spat S. , Pieber T. R. , Beck P. 
Published: June 2014

Summary
Background: Standardized insulin order sets for subcutaneous basal-bolus insulin therapy are recommended by clinical guidelines for the inpatient management of diabetes. The algorithm based GlucoTab system electronically assists health care personnel by supporting clinical workflow and providing insulin-dose suggestions.
Objective: To develop a toolbox for improving clinical decision-support algorithms.
Methods: The toolbox has three main components. 1) Data preparation: Data from several heterogeneous sources is extracted, cleaned and stored in a uniform data format. 2) Simulation: The effects of algorithm modifications are estimated by simulating treatment workflows based on real data from clinical trials. 3) Analysis: Algorithm performance is measured, analyzed and simulated by using data from three clinical trials with a total of 166 patients.
Results: Use of the toolbox led to algorithm improvements as well as the detection of potential individualized subgroup-specific algorithms.
Conclusion: These results are a first step towards individualized algorithm modifications for specific patient subgroups.
Citation: Donsa K, Beck P, Plank J, Schaupp L, Mader JK, Truskaller T, Tschapeller B, Höll B, Spat S, Pieber TR. A toolbox to improve algorithms for insulin-dosing decision support. Appl Clin Inf 2014; 5: 548–556 http://dx.doi.org/10.4338/ACI-04-RA-0033
Utilization of Saliva as a Diagnostic Fluid in Determination of Oral Cancer
Authors: Vahanwala Sonal Pratapsingh , Mukherji Soumyo 
Published: June 2014

ABSTRACTToday's world technology has evolved and we have been able to evaluate certain phenomenon that occurs before manifestation of observable clinical symptoms. Every health care worker has a dream of a perfect diagnosis so that correct service whether medical or surgical, care can be facilitated to the patient. Cancer is one such disease where tracking the tell-tale signs is essential. The one factor behind oral cancer's high mortality is the challenge in its early detection. Despite the scepticism in the scientific community and the conservatism of the patients, saliva seems to emerge as a valuable tool in cancer diagnostics and mass screening of the population. An attempt to integrate the simultaneous testing of different salivary molecular markers in order to raise the possibility of an accurate diagnosis by simply using micro- and nano- electricmechanical systems biosensors is on the way raising much hope in its future applications.How to cite this articleVahanwala SP, Mukherji S. Utilization of Saliva as a Diagnostic Fluid in Determination of Oral Cancer. Int J Head Neck Surg 2014;5(1):15-21.
Oncocytoma Parotid Gland: A Case Report and Brief Review of Literature
Authors: Kumar Sunil , Sethi Ashwini , Singh Satwinder Pal 
Published: June 2014

ABSTRACTVery few cases of oncocytoma parotid have been reported in literature. Because of its rarity (less than 1% of salivary gland tumors) and clinical presentation of the tumor, there is a tendency among the clinicians to misdiagnose it as pleomorphic adenoma, hemangioma or other forms of oncocytosis. Only a histopathological examination can confirm it. We report here a case of oncocytoma of parotid gland in a 70-year-old male who had the tumor for over 9 years.How to cite this articleKumar S, Sethi A, Singh SP, Sharma V. Oncocytoma Parotid Gland: A Case Report and Brief Review of Literature. Int J Head Neck Surg 2014;5(1):25-27.
A Giant Undifferentiated Sarcoma of Parotid Gland: A Case Report and Review of Literature
Authors: Mukherji Srijon , Chauhan Yogendra Singh , Bakshi Niladri Sekhar 
Published: June 2014

ABSTRACT
Malignant spindle cell tumors of the parotid gland are a diagnostic challenge. The clinical and histologic assessments were consistent with a primary sarcoma of the parotid gland. In this article, we present a case of 79-year female with huge right parotid swelling which came out to be an undifferentiated sarcoma on histological examination only. The huge size of the lesion, rarity and less number of reported cases on undifferentiated sarcoma prompted us to report the particular case. The major differential diagnostic considerations were malignant fibrous histiocytoma (MFH), fibrosarcoma, osteosarcoma, spindle cell carcinoma, carcinosarcoma and primary undifferentiated sarcoma of the parotid gland.

How to cite this article
Chauhan Y, Mukherji S, Bakshi NS. A Giant Undifferentiated Sarcoma of Parotid Gland: A Case Report and Review of Literature. Int J Head Neck Surg 2014;5(1):31-34.
Multiple Keratocysts of the Mandible in Association with Multiple Basal Epithelioma, Jaw Cysts and Bifid Rib Syndrome: A Rare Case Report
Authors: Khaji Shahanavaj Imam Husen , Kulkarni Gayathri H , Kulkarni Harish S , Metkari Suryakant B , Kulkarni Reshma 
Published: June 2014

ABSTRACT
Nevoid basal cell carcinoma syndrome is a syndrome with wide variety of manifestations ranging from oral lesions to skeletal deformities. It calls for due responsibility of maxillofacial surgeon to diagnose the syndrome because very often they are the first health professionals to see the patient for the treatment of keratocystic odontogenic tumor.
Keratocystic odontogenic tumor (KCOT) has been the topic of numerous investigators and is known for its potentially aggressive behavior and significant rate of recurrences. Keratocystic odontogenic tumor often occurs as a solitary lesion, and in some instances multiple keratocysts may occur in association with a syndrome called Gorlin-Goltz syndrome (nevoid basal cell carcinoma, jaw cyst bifid rib basal cell nevus syndrome).
Here, we present a case of multiple keratocysts in the mandible in association with skeletal, ocular and cutaneous anomalies in the given clinical scenario which has profound relevance in the clinical dental practice.

How to cite this article
Kulkarni GH, Khaji SI, Kulkarni HS, Metkari SB, Kulkarni R. Multiple Keratocysts of the Mandible in Association with Multiple Basal Epithelioma, Jaw Cysts and Bifid Rib Syndrome: A Rare Case Report. Int J Head Neck Surg 2014;5(1):39-41.
Obtaining Artificially Caries-affected Dentin for in vitro Studies
Authors: Matos Adriana Bona , Garbui Bruna Uglik , de Azevedo Cynthia Soares , Silva Caroline Martins e , Simionato Maria Regina Lorenzetti , de Freitas Anderson Zanardi 
Published: June 2014

ABSTRACT

Aim
This study evaluated and improved a protocol for obtaining standard caries-affected dentin (CAD) by Streptococcus mutans biofilm demineralization process.

Materials and methods
Forty-eight human molars were divided in six experimental groups, according to: period of cariogenic challenge (7, 14 or 21 days) and type of dentin (erupted or unerupted teeth). After complete cariogenic challenge sound and CAD dentin were evaluated by: visual inspection (VI), digital radiography (DR), optical coherence tomography (OCT) and laser fluorescence (LF).

Results
Visual inspection confirmed the formation of CAD based on tissue yellowing and loss of surface gloss. Digital radiography detected the presence of radiolucent images, suggesting caries. Three calibrated examiners viewed all images obtained by VI and DR and were able to distinguish healthy from CAD. Fisher's exact statistical test (p < 0.05) confirmed no difference between groups by VI (G1/G4: p = 0.6; G2/G5: p = 1; G3/G6: p = 1) or DR (G1/G4: p = 1; G2/G5: p = 1; G3/G6: p = 1). Both LF values and demineralization depth, as determined by OCT, were subjected to ANOVA (p < 0.05). For LF, a statistically significant difference was observed for the type of substrate (p = 0.001). For OCT, no statistically significant differences in the type of substrate (p = 0.163), length of cariogenic challenge (p = 0.512) or interaction between factors (p = 0.148) were observed. Scanning electron micrographs confirmed the presence of CAD; a more uniform demineralization surface was observed in the dentin of unerupted teeth.

Conclusion
This protocol suggests that standard CAD can be obtained in 7 days of cariogenic challenge using unerupted teeth.

Clinical significance
With the new perspective on the clinical treatment of caries lesions, bonding is increasingly performed to demineralize CAD, which is susceptible to remineralization. A useful protocol to standardize the production of CAD, by microbiological cariogenic challenge, would be an important contribution to laboratorial test in the field of operative dentistry.

How to cite this article
Azevedo CS, Garbui BU, Silva CM, Simionato MRL, Freitas AZ, Matos AB. Obtaining Artificially Caries-affected Dentin for in vitro Studies. J Contemp Dent Pract 2014;15(1):12-19.
The Effect of 2% Chlorhexidine on the Bond Strength of Two Different Obturating Materials
Authors: Dinesh K , Murthy BV Sreenivasa , Narayana Indiresha H , Hegde Swaroop , Madhu KS , Nagaraja Shruthi 
Published: June 2014

ABSTRACT
The bond strength of ActiV GP and gutta-percha/AH plus after using 2% CHX as final rinse was evaluated in this study. According to the final irrigation regimen forty roots were divided into two groups (n = 20) randomly Group 1—5 ml of 17% EDTA; Group 2—5 ml of 17% EDTA followed by 5 ml of 2% chlorhexidine gluconate (CHX). Based on the obturation system the two groups were further subdivided into two subgroups (n = 10). The roots were horizontally sectioned from the coronal and midthird sections for measuring the push-out bond strength. CHX/AH Plus (2.795 ± 0.42 MPa) and EDTA/ActiV GP (1.489 ± 0.117 MPa) recorded the highest and lowest mean bond strength values respectively. It was concluded that when 2% CHX was used as a final irrigation rinse the bond strength of both guttapercha/AH Plus and ActiV GP obturation system improved significantly.

How to cite this article
Dinesh K, Murthy BVS, Narayana IH, hegde S, Madhu SK, Nagaraja S. The effect of 2% chlorhexidine on the bond strength of two different obturating materials. J Contemp Dent Pract 2014;15(1):82-85.
Multidisciplinary Treatment Approach to Restore Deep Horizontally Fractured Maxillary Central Incisor
Authors: Nimbalkar-Patil Smita P , Karandikar Aamod B 
Published: June 2014

ABSTRACTThis case report demonstrates sequential Periodontic, Orthodontic and Prosthodontic treatment modalities to save and restore deep horizontally fractured maxillary central incisor. The location of fracture was deep in the mucosa which reveals less than 2 mm of tooth structure to receive the crown. The procedures like surgical crown lengthening, endodontic post placement, orthodontic forced eruption, core build-up and metal-ceramic crown restoration were sequentially performed to conserve the fractured tooth. Forced eruption is preferred to surgical removal of supporting alveolar bone, since forced eruption preserves the biologic width, maintains esthetics, and at the same time exposes sound tooth structure for the placement of restorative margins.How to cite this articlePatil PG, Nimbalkar-Patil SP, Karandikar AB. Multidisciplinary Treatment Approach to Restore Deep Horizontally Fractured Maxillary Central Incisor. J Contemp Dent Pract 2014;15(1):112-115.
Gleaning data from disaster: A hospital-based data mining method to study all-hazard triage after a chemical disaster
Authors: Craig, PhD, MS, BS Jean B. , Culley, PhD, MPH, MS, RN, CWOCN Joan M. , Tavakoli, DrPH, MPH, ME Abbas S. , Svendsen, PhD, MS, BS Erik R. 
Published: June 2014

Objective: To describe the methods of evaluating currently available triage models for their efficacy in appropriately triaging the surge of patients after an all-hazards disaster.Design: A method was developed for evaluating currently available triage models using extracted data from medical records of the victims from the Graniteville chlorine disaster.Setting: On January 6, 2005, a freight train carrying three tanker cars of liquid chlorine was inadvertently switched onto an industrial spur in central Graniteville, SC. The train then crashed into a parked locomotive and derailed. This caused one of the chlorine tankers to rupture and immediately release ~60 tons of chlorine. Chlorine gas infiltrated the town with a population of 7,000.Participants: This research focuses on the victims who received emergency care in South Carolina.Results: With our data mapping and decision tree logic, the authors were successful in using the available extracted clinical data to estimate triage categories for use in our study.Conclusions: The methodology outlined in this article shows the potential use of well-designed secondary analysis methods to improve mass casualty research.The steps are reliable and repeatable and can easily be extended or applied to other disaster datasets.
De zoektocht naar de juiste interpretatie van opvolgend werkgeverschap na Van Tuinen/Wolters
Authors: Palm S. 
Published: June 2014

De zoektocht naar de juiste interpretatie van opvolgend werkgeverschap na Van Tuinen/Wolters
Dit artikel beantwoordt de vraag waarom de Hoge Raad bij de uitleg van artikel 7:668a lid 2 Burgerlijk Wetboek heeft gekozen voor aansluiting bij zijn maatstaf uit de proeftijdjurisprudentie en daarnaast of de regering in het voorstel Wet werk en zekerheid op terechte gronden heeft besloten de koers van de Hoge Raad niet te volgen. De auteur stelt vast dat aansluiting bij de proeftijdjurisprudentie tot op zekere hoogte een compromis is en niet in alle gevallen goed toepasbaar is. De door de regering voorgestelde koerswijziging maakt de toepassing van het leerstuk opvolgend werkgeverschap echter nog complexer. Daarom volgt een suggestie voor een andere interpretatie van het leerstuk opvolgend werkgeverschap.
The Economics and Empirics of Tax Competition: A Survey and Lessons for the EU
Authors: Baskaran Thushyanthan , Lopes da Fonseca Mariana 
Published: June 2014

The Economics and Empirics of Tax Competition: A Survey and Lessons for the EU
We survey the theoretical and empirical literature on local and international tax competition in Economics. On the basis of this survey, we discuss whether EU countries should harmonise tax policies to prevent a race to the bottom. Much of the evidence suggests that tax competition does not lead to significant reductions in tax revenues. Therefore, we conclude that tax coordination is in all likelihood unnecessary to prevent inefficiently low levels of taxation in the EU. But since the evidence against the adverse effects of tax competition is not unambiguous, we also discuss whether intergovernmental transfers might be a less invasive means than outright tax harmonisation to prevent a race to the bottom.