bluuebunny/crossref_metadata_2025_split huggingface dataset:
Limit States Design for Onshore Pipelines: Design Rules for Operating Pressure and Equipment Impact Loads
Authors: Nessim Maher A. , Adianto Riski H. 
Published: December 2014

Reliability-based design rules have been developed for the key ultimate limit states applicable to onshore pipeline, including burst under operating pressure and failure due to equipment impact. The design rules are characterized by three elements; the formulas used to calculate the characteristic demand and capacity; the criteria used to define the characteristic values of the key input parameters to these formulas (such as diameter, material strength, pressure and impact load); and the safety factors defining the required excess capacity over the demand.
The overall methodology used in developing the design rules and the practical implications of applying them are described in a companion paper. This paper describes the process used to calibrate safety factors and characteristic input parameter values that meet the desired reliability levels. The final design rules are described in the paper and an assessment of their accuracy and consistency in meeting the reliability targets is included.
The Role, Limitations, and Value of Hydrotesting vs In-Line Inspection in Pipeline Integrity Management
Authors: Johnson Joshua , Nannay Steve 
Published: December 2014

In-Line Inspection has become the first choice for integrity assessment for most pipeline operators. The data generated from modern ILI tools allows operators a comprehensive assessment of the condition of their pipelines so they can plan out integrity actions based on the condition of the line. In-line inspection vendors continue to upgrade their tools and provide new services to pipeline operators to enhance integrity management programs. The data provided by these tools is relied upon by operators, regulators, and the public to be correct and complete and in most instances it is, but when near critical features are missed or data is used improperly, the results can be catastrophic.
Hydrostatic testing has fallen out of favor with many pipeline operators due to the operational headaches, costs, difficult logistics, and lack of data generated during a hydrotest to conduct future integrity work. However, in light of a number of high profile accidents on pipelines that failed after an ILI run was performed, it may be time to reassess the role that hydrostatic testing plays in modern pipeline integrity management programs.
This paper will explore failures and other case histories that have occurred on lines regulated by PHMSA where ILI results alone have failed to provide all of the necessary information to maintain pipeline integrity and how hydrostatic testing may provide value to integrity management programs. Limitations and misconceptions of ILI and hydrostatic testing will be discussed, particularly for seam defects and similar types of defects. Based on these analyses and observations, the roles of hydrostatic testing and ILI tools in a successful integrity management plan will be discussed along with flaw growth rates, predicted failure pressure calculations, re-inspection intervals, and other elements of successful integrity management programs.
Qualification Testing of Mechanical Pipe Joining Method
Authors: McColl Dave , Whiting Adam 
Published: December 2014

Pipeline infrastructure is the backbone of the energy industry and remains the safest and most cost effective method for transporting oil and gas. For decades corrosion has presented a significant challenge to pipeline operators. According to Alberta Energy Regulator data, internal corrosion is considered to be the root cause for more than 54% of all documented pipeline failures in Alberta [1]. Spoolable composite pipeline technologies have become a mainstream corrosion solution over the last 10 years, however these products are limited to smaller pipelines, typically less than 6 inches in diameter. Traditional slip-lining (field installed plastic lined steel pipe) is used for internal corrosion protection of larger pipelines, however it is costly, requiring labour intensive field construction, often completed in inhospitable environmental conditions. As a result project delays and cost over-runs are commonplace.
Recognizing the need for a cost effective pipeline corrosion solution for larger gathering pipelines, an innovative technology was developed that combines a unique mechanical pipe joining system with an integrated electro-fusion coupler. The new joining system enables insertion of an HDPE liner in a factory environment where costs and quality can be tightly controlled. The new joining system eliminates conventional welding of the pipeline in the field and instead uses a custom field press to quickly energize the mechanical pipe joint. Field scope is significantly reduced, construction completed in less time, and associated costs greatly reduced. This paper discusses the testing completed to qualify the new joining system for use in oilfield gathering pipelines.
The qualification test plan includes all requirements identified in applicable regulatory standards (primarily CSA Z662-11), and prudent engineering requirements based on anticipated field handling and anticipated operating conditions. The test regime was ultimately designed to ensure the suitability of the pipeline system for intended service. Testing included hydrostatic burst, static gas pressure, bend, cyclic pressure and thermal, vacuum, tensile, and compressive tests on the joint.
The test results show that in all cases the jointing system successfully met the established design performance criteria and in most cases exceeded the actual mechanical properties of the parent pipe, thus proving the joining system ready for field installations.
The Dynamics of Baroclinic Zonal Jets*
Authors: Williams Paul D. , Kelsall Christopher W. 
Published: December 2014

Abstract
Multiple alternating zonal jets are a ubiquitous feature of planetary atmospheres and oceans. However, most studies to date have focused on the special case of barotropic jets. Here, the dynamics of freely evolving baroclinic jets are investigated using a two-layer quasigeostrophic annulus model with sloping topography. In a suite of 15 numerical simulations, the baroclinic Rossby radius and baroclinic Rhines scale are sampled by varying the stratification and root-mean-square eddy velocity, respectively. Small-scale eddies in the initial state evolve through geostrophic turbulence and accelerate zonally as they grow in horizontal scale, first isotropically and then anisotropically. This process leads ultimately to the formation of jets, which take about 2500 rotation periods to equilibrate. The kinetic energy spectrum of the equilibrated baroclinic zonal flow steepens from a −3 power law at small scales to a −5 power law near the jet scale. The conditions most favorable for producing multiple alternating baroclinic jets are large baroclinic Rossby radius (i.e., strong stratification) and small baroclinic Rhines scale (i.e., weak root-mean-square eddy velocity). The baroclinic jet width is diagnosed objectively and found to be 2.2–2.8 times larger than the baroclinic Rhines scale, with a best estimate of 2.5 times larger. This finding suggests that Rossby wave motions must be moving at speeds of approximately 6 times the turbulent eddy velocity in order to be capable of arresting the isotropic inverse energy cascade.
Timing of norepinephrine in septic patients: NOT too little too late
Authors: Rachoin Jean-Sebastien , Dellinger Richard P 
Published: December 2014

AbstractAfter years and years of consensus expert opinion as to mean arterial pressure (MAP) target and vasopressor choice in septic shock management, literature is now emerging that supports the MAP target of 65 mm Hg and norepinephrine as the vasopressor choice. However, the literature remains sparse as to the timing of vasopressors relative to fluid resuscitation and how MAP support is balanced between the choices of vasopressor versus fluid resuscitation. Bai and colleagues report data that reveal an association between earlier vasopressor initiation in septic shock and better outcome. Whether this is a linkage to better care, is related to improved early tissue perfusion, or relates to sparing of fluids to reach the MAP target is not yet known.
Point-of-care testing in the overcrowded emergency department – can it make a difference?
Authors: Rooney Kevin D , Schilling Ulf Martin 
Published: December 2014

AbstractEmergency departments (EDs) face several challenges in maintaining consistent quality care in the face of steadily increasing public demand. Improvements in the survival rate of critically ill patients in the ED are directly related to the advancement of early recognition and treatment. Frequent episodes of overcrowding and prolonged waiting times force EDs to operate beyond their capacity and threaten to impact upon patient care. The objectives of this review are as follows: (a) to establish overcrowding as a threat to patient outcomes, person-centered care, and public safety in the ED; (b) to describe scenarios in which point-of-care testing (POCT) has been found to ameliorate factors thought to contribute to overcrowding; and (c) to discuss how POCT can be used directly, and indirectly, to expedite patient care and improve outcomes. Various studies have shown that overcrowding in the ED has profound effects on operational efficiency and patient care. Several reports have quantified overcrowding in the ED and have described a relationship between heightened periods of overcrowding and delays in treatment, increased incidence of adverse events, and an even greater probability of mortality. In certain scenarios, POCT has been found to increase the number of patients discharged in a timely manner, expedite triage of urgent but non-emergency patients, and decrease delays to treatment initiation. This review concludes that POCT, when used effectively, may alleviate the negative impacts of overcrowding on the safety, effectiveness, and person-centeredness of care in the ED.
A novel phosphatidylinositol 3-kinase (PI3K) inhibitor directs a potent FOXO-dependent, p53-independent cell cycle arrest phenotype characterized by the differential induction of a subset of FOXO-regulated genes
Authors: Hill Richard , Kalathur Ravi Kiran Reddy , Callejas Sergio , Colaço Laura , Brandão Ricardo , Serelde Beatriz , Cebriá Antonio , Blanco-Aparicio Carmen , Pastor Joaquín , Futschik Matthias , Dopazo Ana , Link Wolfgang 
Published: December 2014

Abstract
Introduction
The activation of the phosphoinositide 3-kinase (PI3K)/AKT signalling pathway is one the most frequent genetic events in breast cancer, consequently the development of PI3K inhibitors has attracted much attention. Here we evaluate the effect of PI3K inhibition on global gene expression in breast cancer cells.

Methods
We used a range of methodologies that include in silico compound analysis, in vitro kinase assays, cell invasion assays, proliferation assays, genome-wide transcription studies (Agilent Technologies full genome arrays), gene set enrichment analysis, quantitative real-time PCR, immunoblotting in addition to chromatin immunoprecipitation.

Results
We defined the physico-chemical and the biological properties of ETP-45658, a novel potent PI3K inhibitor. We demonstrated that ETP-45658 potently inhibited cell proliferation within a broad range of human cancer cells, most potently suppressing the growth of breast cancer cells via inhibiting cell cycle. We show that this response is Forkhead box O (FOXO) protein dependent and p53 independent. Our genome-wide microarray analysis revealed that the cell cycle was the most affected biological process after exposure to ETP-45658 (or our control PI3K inhibitor PI-103), that despite the multiple transcription factors that are regulated by the PI3K/AKT signalling cascade, only the binding sites for FOXO transcription factors were significantly enriched and only a subset of all FOXO-dependent genes were induced. This disparity in gene transcription was not due to differential FOXO promoter recruitment.

Conclusions
The constitutive activation of PI3Ks and thus the exclusion of FOXO transcription factors from the nucleus is a key feature of breast cancer. Our results presented here highlight that PI3K inhibition activates specific FOXO-dependent genes that mediate cell cycle arrest in breast cancer cells.
Struggling with change: The predicament of evolution and change for religious traditions
Authors: Henriksen Jan-Olav 
Published: December 2014

SummaryThe present article identifies and reflects on some dimensions in how change is a vital and necessary (constitutive) element in the development of religious traditions. Change both challenges and contributes to the upholding of these traditions. The argument is that contrary to popular opinion, change should not be seen as a problem for religion, but as an important condition for religion, even when it comes to the very basic biological conditions of humanity that make possible the historical and cultural realms of our existence – realms in which religion mainly expresses itself. Thus, it offers reasons for taking leave of the idea that religions are, or should be, expressions of an unchanging world order and of unchanging normative doctrinal positions. Such a position does not take historical change seriously, but it also ignores the basic evolutionary conditions of religion, as well as the pragmatic and adaptive features in religion. Thus, the constructive argument of the article is to propose that change and order work in interplay and that they are mutually dependent or dialectically related to each other. Religion must be seen as existing in the tension between order and contingency, stability and dynamics, law-like regularities and change. Religion would accordingly, from this perspective, be just as much about change as about that which endures and remains unchanging.
Hip and Shoulder Range of Motion in Youth Baseball Pitchers
Authors: Oliver Gretchen D. , Weimar Wendi H. 
Published: December 2014

Abstract
Oliver, GD and Weimar, WH. Hip and shoulder range of motion in youth baseball pitchers. J Strength Cond Res 30(10): 2823–2827, 2016—Lack of range of motion (ROM) has long been suspected as contributing to injury in baseball pitchers. However, all previous ROM research has focused on collegiate and professional pitchers. It was thus the purpose of this study to measure and evaluate bilateral hip and throwing shoulder rotational passive range of motion (PROM) in youth baseball pitchers. Twenty-six youth baseball pitchers (11.3 ± 1.0 years; 152.4 ± 9.0 cm; 47.5 ± 11.3 kg) with no history of injury participated. Bilateral hip and throwing shoulder rotational PROM was measured. There were no significant side-to-side differences for the hip variables (p ≥ 0.05). Shoulder external rotation (ER) was significantly greater than shoulder internal rotation (IR). And the lead leg hip had significantly greater ER than IR. Shoulder ER revealed significant correlations with both lead and stance hip IR (r = 0.45, p = 0.02 and r = 0.48, p = 0.01, respectively). The youth baseball pitchers in this study displayed similar PROM patterns as collegiate and professional baseball pitchers. Additionally, our youth baseball pitchers also presented strong relationships between hip and shoulder PROM. This study reveals that the PROM patterns displayed by these youth may indicate that their available ROM could survive maturation. It is therefore suggested that clinical focus be directed to maintaining hip and shoulder rotational ROM throughout maturation in attempt to determine a possible relations between injurious mechanisms and performance enhancement.
Anterior tooth alignment: A comparison of orthodontic retention regimens 5 years posttreatment
Authors: Bjering Ragnar , Birkeland Kari , Vandevska-Radunovic Vaska 
Published: December 2014

ABSTRACT

Objective:
To assess orthodontic treatment outcome at debonding and at 3 and 5 years after orthodontic treatment and to investigate the influence of different retention protocols on anterior tooth alignment.

Materials and Methods:
Using the Peer Assessment Rating (PAR) Index, 169 patients (74 boys, 95 girls) were analyzed at four stages: pretreatment (T0), posttreatment (T1), 3 years posttreatment (T3), and 5 years posttreatment (T5). The PAR anterior component scores (ACSs) were compared between groups with different retention protocols. In the maxilla, protocols were removable retainer until T3 (MAX1), removable and fixed retainer until T3 (MAX2), and removable retainer until T3 and fixed retainer until T5 (MAX3). In the mandible, protocols were no retainer (MAND1), fixed 3-3 retainer until T3 (MAND2), and fixed 3-3 retainer until T5 (MAND3).

Results:
Mean weighted improvement in PAR score was 88.3% at T1, 86.4% at T3, and 82.1% at T5. The ACS for the maxilla showed no significant differences between the retention protocols at any time point. In the mandible, the group without retention showed a gradual but not significant deterioration in ACS throughout the posttreatment period. At T5 there was a significant difference in ACS between the group that had the retainer removed at T3 and the group that kept the retainer.

Conclusion:
The 5-year treatment outcome, as measured by the PAR Index, was good. Stability of the maxillary anterior alignment 5 years posttreatment did not appear to be influenced by choice of retention protocol. Mandibular anterior alignment was significantly better for the group using a fixed retainer compared with the group where the retainer was removed 3 years posttreatment.
Effects of 8-months yoga training on shaping the spine in people over 55
Authors: Grabara Małgorzata 
Published: December 2014

Summary
Study aim: The aim of this study was to evaluate the influence of hatha yoga practices on the shaping of the anteroposterior (AP) spinal curvatures in students of the University of the Third Age, who participated in hatha yoga classes.
Material and methods: 20 women and 5 men took part in the study. Hatha yoga classes were held once a week for 90 minutes over a period of 8 months along with additional exercises including basic positions of hatha yoga in home conditions 1-2 times a week for about 30 minutes. The inclination of the AP curvatures of the spine was measured twice, before and after the end of the classes. A Rippstein plurimeter was used for the measurements. R
esults: Measurements of the angle of thoracic kyphosis before starting the series of hatha yoga classes and after finishing them showed a decrease in thoracic curvature in female (p < 0.01). In case of the angle of lumbar lordosis, a reduction in this curvature as a result of yoga techniques has been observed in women (p < 0.01) too. Amounts of AP curvatures of the spine, measured after completing the series of hatha yoga classes, fluctuated around correct values better than before taking them up.
Conclusion: This study has shown that yoga training leads to an improvement in the habitual body posture in case of aggravating (excessive) AP curvatures of the spine.
Higher order fuzzy logic in controlling selective catalytic reduction systems
Authors: Niewiadomski A. , Kacprowicz M. 
Published: December 2014

Abstract
This paper presents research on applications of fuzzy logic and higher-order fuzzy logic systems to control filters reducing air pollution [1]. The filters use Selective Catalytic Reduction (SCR) method and, as for now, this process is controlled manually by a human expert. The goal of the research is to control an SCR system responsible for emission of nitrogen oxide (NO) and nitrogen dioxide (NO2) to the air, using SCR with ammonia (NH3). There are two higher-order fuzzy logic systems presented, applying interval-valued fuzzy sets and type-2 fuzzy sets, respectively. Fuzzy sets and higher order fuzzy sets describe linguistically levels of nitrogen oxides as the input, and settings of ammonia valve in the air filter as the output. The obtained results are consistent with data provided by experts. Besides, we show that the type-2 fuzzy logic controllers allows us to obtain results much closer to desired parameters of the ammonia valve, than traditional FLS.
Comparative investigation of friction stir welding and fusion welding of 6061 T6 – 5083 O aluminum alloy based on mechanical properties and microstructure
Authors: Jannet S. , Mathews P.K. , Raja R. 
Published: December 2014

Abstract
This paper compares, the mechanical properties of welded joints 6061 T6 and 5083 O aluminium alloys obtained using friction stir welding (FSW) at four rotation speeds namely 450,560,710 and 900 rpm and that by conventional fusion welding. FSW welds were carried out on a milling machine. The performance of FSW and Fusion welded joints were identified using tensile test, hardness test and microstructure. The properties of FSW and fusion welded processes were also compared with each other to understand the advantages and disadvantages of these processes for welding applications for Al alloys. It was seen that the tensile strength obtained with FSW was higher as compared to conventional fusion welding process. The width of the heat affected zone of FSW was narrower than Fusion welded joints. The results showed that FSW improved the mechanical properties of welded joints.
Comparison of firefly and cockroach algorithms in selected discrete and combinatorial problems
Authors: Kwiecień J. , Filipowicz B. 
Published: December 2014

Abstract
In recent years, newer algorithms inspired by nature have been created and used to solve various problems. Therefore, in the paper we present the application of firefly and cockroach algorithms to optimize two queueing systems and permutation flow shop problems with the objective of minimizing the makespan. The article briefly describes these algorithms to solve selected problems and their results. Because these algorithms were originally developed for continuous optimization problems, we introduce a new formula to transform the position of ith individual to solve the discrete problems.
Non-Uniformity Correction in Microbolometer Array with Temperature Influence Compensation
Authors: Krupiński Michał , Bieszczad Grzegorz , Sosnowski Tomasz , Madura Henryk , Gogler Sławomir 
Published: December 2014

Abstract
In the article a non-uniformity correction method is presented which allows to compensate for the influence of detector’s temperature drift. For this purpose, dependency between output signal value and the temperature of the detector array was investigated. Additionally the influence of the temperature on the Offset and Gain coefficients was measured. Presented method utilizes estimated dependency between output signal of detectors and their temperature. In the presented method, the shutter is used for establishing signal reference. Thermoelectric cooler is used for changing the temperature of the detector array.
Differential Electronic Nose in On-Line Dynamic Measurements
Authors: Osowski S. , Siwek K. , Grzywacz T. , Brudzewski K. 
Published: December 2014

Abstract
The paper presents application of differential electronic nose in the dynamic (on-line) volatile measurement. First we compare the classical nose employing only one sensor array and its extension in the differential form containing two sensor arrays working in differential mode. We show that differential nose performs better at changing environmental conditions, especially the temperature, and well performs in the dynamic mode of operation. We show its application in recognition of different brands of tobacco