bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ion exchange of H+/Na+ in polyantimonic acid, doped with vanadium ions
Authors: Kovalenko Liliya Yu. , Burmistrov Vladimir A. , Lupitskaya Yuliya A. , Yaroshenko Fedor A. , Filonenko Elena M. , Bulaeva Elena A. 
Published: November 2019

Abstract
The influence of doping of polyantimonic acid with vanadium ions on the ion exchange H+/Na+ kinetics is determined. With the help of the X-ray analysis it is shown that doped compounds H2Sb2-x
V
x
O6-δ  · nH2O, where x = 0.14; 0.36; 0.48 have the pyrochlore-type structure. With the increase of the amount of vanadium in a sample there is a decrease of a unit cell parameter. It is determined that there is a reduction of a unit cell frame, formed by antimonic and vanadium ions, and a size reduction of hexagonal cavities, in which protons are located. It is shown that during the ion exchange of H+/Na+ there is a change of the unit cell plane without a symmetry breaking of a crystal structure, which demonstrates solid solution formation. With the increase of the amount of vanadium in the sample there is a decrease of the ion-exchange capacity, which is connected with the decrease of the channel’s section size. The ion exchange H+/Na+ kinetics has been studied with the approximation of the Boyd’s model for the intergrain diffusion. Diffusion coefficients had the order 10−13 m2/s and decreased with the increase of the amount of vanadium in the sample.
A Bayesian framework for identifying consistent patterns of microbial abundance between body sites
Authors: Meier Richard , Thompson Jeffrey A. , Chung Mei , Zhao Naisi , Kelsey Karl T. , Michaud Dominique S. , Koestler Devin C. 
Published: November 2019

Abstract
Recent studies have found that the microbiome in both gut and mouth are associated with diseases of the gut, including cancer. If resident microbes could be found to exhibit consistent patterns between the mouth and gut, disease status could potentially be assessed non-invasively through profiling of oral samples. Currently, there exists no generally applicable method to test for such associations. Here we present a Bayesian framework to identify microbes that exhibit consistent patterns between body sites, with respect to a phenotypic variable. For a given operational taxonomic unit (OTU), a Bayesian regression model is used to obtain Markov-Chain Monte Carlo estimates of abundance among strata, calculate a correlation statistic, and conduct a formal test based on its posterior distribution. Extensive simulation studies demonstrate overall viability of the approach, and provide information on what factors affect its performance. Applying our method to a dataset containing oral and gut microbiome samples from 77 pancreatic cancer patients revealed several OTUs exhibiting consistent patterns between gut and mouth with respect to disease subtype. Our method is well powered for modest sample sizes and moderate strength of association and can be flexibly extended to other research settings using any currently established Bayesian analysis programs.
Quantitative Relationships Between Individual Lower-Limb Muscle Volumes and Jump and Sprint Performances of Basketball Players
Authors: Xie Tianyuan , Crump Katherine B. , Ni Renkun , Meyer Craig H. , Hart Joseph M. , Blemker Silvia S. , Feng Xue 
Published: November 2019

AbstractXie, T, Crump, KB, Ni, R, Meyer, CH, Hart, JM, Blemker, SS, and Feng, X. Quantitative relationships between individual lower-limb muscle volumes and jump and sprint performances of basketball players.J Strength Cond Res34(3): 623–631, 2020—Lower body skeletal muscles play an essential role in athletic performance; however, because of the difficulty in obtaining detailed information of each individual muscle, the quantitative relationships between individual muscle volumes and performance are not well studied. The aim of this study was to accurately measure individual muscle volumes and identify the muscles with strong correlations with jump and sprint performance metrics for basketball players. Ten male varsity basketball players and 8 club players were scanned using magnetic resonance imaging (MRI) and instructed to perform various jump and sprint tests. The volumes of all lower-limb muscles were calculated from MRI and normalized by body surface area to reduce the effect of the body size differences. In analysis, feature selection was first used to identify the most relevant muscles, followed by correlation analysis to quantify the relationships between the selected muscles and each performance metric. Vastus medialis and semimembranosus were found to be the most relevant muscles for jump while adductor longus and vastus medialis were selected for sprint. Strong correlations (r= 0.664–0.909) between the selected muscles and associated performance tests were found for varsity players, and moderate correlations (r= −0.203 to 0.635) were found for club players. One possible application is that for well-trained varsity players, a targeted training scheme focusing on the selected muscles may be an effective method to further improve jump and sprint performances.
Islamic Educational Administration and Management Program, Prince of Songkla University (PSU): Contributions and Challenges for Malay Muslim Community in Thailand
Authors: Wae-u-seng Niloh , Henpiya Abdulhakam , Sa-U Samsoo 
Published: November 2019

In Thailand context, Faculty of Islamic Sciences (FIS), Prince of Songkla University, Pattani Campus, is one of the higher educational institutions which plays a vital role not only in disseminating knowledge related to Islamic studies disciplines but also serving as an impetus to the development of Muslim community in southern part of Thailand in particular. This study aims at examining the ongoing development of one of the programs offered by FIS i.e., Islamic Educational Administration and Management Program. The focus will be given to its contribution and proposal for the development that would result in strengthening the program to achieve the desired goal. Documentary analysis is used for the study. Moreover, presentation of the result will be narratively described. It is hoped that the study would give some guidelines for policy implication. Â Â
Islamic Local Awakening: Study of Muhammadiyah Renewal as The Rise of Islamic Education Identity in South Sumatera
Authors: Rahman Arif 
Published: November 2019

The purpose of this study is to construct the dynamics of Muhammadiyah education in South Sumatera which is undergoing a phase called the local awakening. Such conditions occur after social, political and religious relations have struggled during the development of Muhammadiyah education there, which also helped encourage the renewal of overall Islamic education in South Sumatera. This study is a qualitative study with a social history approach. Data in the form of historical facts related to this research are collected through library and documentation techniques. The results of this study indicate that the construction of Muhammadiyah education as an identity for Islamic education in South Sumatera actually happened due to factors of Islamic renewal which occurred intensively in rural areas (periphery) that experienced a process of negotiation and integration in the social community. So that the renewal of Islam carried out by the modernist movement there actually appeared in rural areas not in urban areas as happened in other regions in Indonesia.Â Â Â
MANAGEMENT OF FLUCTUATION OF FINANCIAL AND ECONOMIC INTEGRATED DEVELOPMENT OF INNOVATIVE ENTERPRISE
Authors: Boichenko K. S. , Tepliuk M. A. , Rekova N. Yu. , Stashkevych I. I. , Morkunas M. 
Published: November 2019

The main purpose of this article is to study the fluctuation management of financial and economic performance of innovative enterprises’ activity comprehensively in the context of their effective integrated development. The study found that achieving a high level of management of integrated enterprise development by fluctuation indicators, is possible when evaluating the effectiveness of functioning on the basis of a range of methods of improvement the quality management of integrated development of the enterprise on the fluctuation indicators, resource allocation in order to reduce the level of fluctuation of expectations in the process of integrated development between enterprise and stakeholders using a set of basic and additional features to ensure efficiency of the development management at a high level and corresponding changes in key indicators, as well as maintain the balance in the form of alternatives in the disturbing effects of internal and external environmental factors of the enterprise.The life cycle of fluctuation of key indicators of integrated development of the enterprise with separation of three zones of fluctuation of key indicators of integrated development are considered: synchronicity, pleziochrony, disintegration, as well as opposite fluctuations of key indicators, depending on their parity level (low, medium, high) and stages of the cycle. The sources of financing of innovative activity of industrial enterprises are analysed. The results of the conducted researches were used to construct the synchrony matrix of the processes of integrated development of innovative enterprises taking into consideration the fluctuation of key financial and economic indicators. It is determined that Ukraine has considerable potential for innovation activity, however, there are many problems arising in the way of activation and realization of innovative activity of domestic companies. It is established that the management of fluctuation of financial and economic indicators of the integrated development of innovative enterprises will help to increase the efficiency of their activity and to integrate the processes of development both within the company and beyond. The ways of solving the problems of integrated development of domestic innovative enterprises are suggested.
Öykü Anlatıcılığı ile Sistemik Müdahaleyi İçeren Eklektik Bir Müdahale
Authors: MUKBA Gamze , SANBERK İsmail , AKBAŞ Turan 
Published: November 2019

Çocuklar, çeşitli sıkıntılı deneyimler ve travmatik durumlarla karşılaştıklarında var olan öyküleri, onlar için rahatsız edici olabilmektedir. Çocuklarla yapılandırılan terapötik müdahalelerde onların öykülerinden yararlanmak ve yapılandırdıkları öyküleri dinledikten sonra farklı yolları içerebilen yeni öyküler oluşturulmasına destek sağlamak söz konusu olabilir. Bu yöndeki müdahaleler, öyküsel terapi ve çocuğun iç kaynaklarıyla ilişkili “öykü anlatıcılığı tekniğinden” yararlanmayı öne çıkarmaktadır. Çocukların çeşitli sıkıntılarıyla çalışırken öykü anlatıcılığı tekniği ve sistemik müdahalelerin birlikte kullanılması önerilmektedir. Bu çalışmanın amacı, öykü anlatıcılığı tekniğini ve sistemik müdahaleyi içeren eklektik bir müdahaleye ilişkin bir öneri sunmaktır.
No Difference in Outcomes Between Short and Longer-Stay Total Joint Arthroplasty with a Discharge Home
Authors: Leroux Timothy S. , Maldonado-Rodriguez Naomi , Paterson J. Michael , Aktar Suriya , Gandhi Rajiv , Ravi Bheeshma 
Published: November 2019

Background:
Outcomes following total hip arthroplasty (THA) and total knee arthroplasty (TKA) with a short length of hospital stay have been reported; however, most studies have not accounted for an inherent patient selection bias and discharge disposition. The purpose of this study was to utilize a propensity score to match and compare the outcomes of patients undergoing THA or TKA with short and longer lengths of stay with a discharge directly home.

Methods:
An administrative database from Ontario, Canada, which has a single-payer health-care system, was retrospectively reviewed to identify patients who underwent THA or TKA from 2008 to 2016. Patients were subsequently stratified into 2 groups based on their length of stay: short length of stay (≤2 days; thereafter referred to as short stay) and longer length of stay (>2 days; thereafter referred to as longer stay). Using a propensity score, patients who underwent short-stay THA or TKA were matched to patients who underwent longer-stay THA or TKA. Matching was based on 15 demographic, medical, and surgical factors. Our primary outcomes included postoperative complications, health-care utilization (readmission and emergency department presentation), and health-care costs.

Results:
Overall, 89,656 TKAs (14,645 short stays and 75,011 longer stays) and 52,610 THAs (9,426 short stays and 43,184 longer stays) were included in this study. Patients who underwent short-stay THA or TKA were significantly more likely (p < 0.05) to be younger, male, healthier, and from a higher socioeconomic status and to have undergone the procedure with a higher-volume surgeon. Over 95% of short-stay cases were successfully matched to longer-stay cases, and we found no significant difference in complications, health-care utilization, and costs between patients on the basis of the length of stay.

Conclusions:
Patients undergoing short-stay THA or TKA with a discharge home were more likely to be younger, healthy, male patients from a higher socioeconomic status. Higher-volume surgeons are also more likely to perform short-stay THA or TKA. These characteristics confirm the previously held belief that a selection bias exists when comparing cohorts based on time to discharge. When comparing matched cohorts of patients who underwent short-stay and longer-stay THA or TKA, we observed no difference in outcomes, suggesting that a short stay with a discharge home in the appropriately selected patient is safe following THA or TKA.

Level of Evidence:
Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Rotational Tibio-Pelvic Constrained Hip Arthroplasty: A Surgical Technique
Authors: Cahill Sean V. , Yu Kristin E. , Dussik Christopher M. , Lee Francis Y. 
Published: November 2019

Case:
A 25-year-old man presented with chronic bone and soft tissue infection of the right thigh following resection and radiation of epithelioid sarcoma. Multiple revisions and debridement procedures had failed to control the infection and left him unable to ambulate. We describe a modified Van Nes rotationplasty using a constrained, prosthetic hip between the tibia and pelvis following femur resection. With 18 months of follow-up, the patient was able to walk with a prosthetic device without evidence of recurrent infection.

Conclusions:
We report this rotationplasty as a potential approach to avoid hip disarticulation in cases requiring extensive debridement for incurable infection.
Optimization of the SAGP Process in L Oil-Sand Field with Response Surface Methodology
Authors: Kang Xiaodong , Li Baozhen , Zhang Jian , Wang Xudong , Yu Wei 
Published: November 2019

Abstract
In this study SAGP (steam and gas push) technology was designed to improve the thermal recovery efficiency in L oil-sand field, where traditional steam flooding efficiency was unfavorable with high steam oil ratio and expensive operation cost. The optimization of SAGP process were performed with numerical simulation and response surface method "Box-Behnken", which could be done with acceptable accuracy by performing a limited number of runs, hence, reducing the engineering time and effort. With the simplified equation between the EOR and different SAGP parameters including Injection gas type, injection time, injection gas mol% and volume, operators could determine the best combination of all the factors according different conditions efficiently. This study provides critical insights for understanding the SAGP flooding mechanism and its effect on SAGD flooding effectiveness in the oil sand field, which also delivers a good reference for improving the development efficiency of oil sands with better economic benefits.
IMO 2020 May Only Be A Beginning -Reinforcement of Maritime Environmental Regulations and Its Impact on Oil & Gas Industry
Authors: Nakano Michihiko 
Published: November 2019

Summary
In 2016, the IMO has decided that the global fuel Sulphur limit of 0.50% on marine fuel oil would enter into force on 1 January 2020 ("IMO 2020 Global Sulphur Cap"). It is one of the biggest challenges for the marine industry that it had experienced in the modern era for its magnitude and urgency. Then in 2018, the IMO adopted an initial strategy of the reduction of greenhouse gas emission from international shipping in 2018 ("IMO GHG Initial Strategy"). It is a landmark decision by the IMO as it envisions a reduction gross greenhouse gas emission from international shipping and phase them out entirely for the first time. The IMO GHG Initial Strategy is not imminent comparing with the IMO 2020 Global Sulphur Cap, but it would be more serious and strenuous for its technical difficulties or practicability. By this presentation, we are going to describe where we are and where we are headed as to this topic by illustrating history and background, on-going discussions and trend on incremental reinforcement of environmental restriction in the maritime sector, possible options and solutions and those innovation gaps and so on.
Technologies and Practices to Push The Extended Reach Drilling Envelope within The Existing Constraints
Authors: Paila Phalgun , Singh Rudra Pratap , Abid Kashif 
Published: November 2019

Abstract
Optimizing resources and pushing the drilling limits to tap into deeper reservoirs at minimal cost has always been the primary objective of many operators worldwide. Moreover, the prolonged current market conditions are pressurizing every stakeholder involved within the well-delivery process to reduce time and the associated costs like never before. This paper deals with an Offshore Artificial Island project where the drilling limits were constantly challenged by adopting new technologies and practices in an extended-reach drilling (ERD) campaign.
The complexity of these extended-reach wells was managed effectively with excellent planning and execution. Implementation of new and existing technologies and the adoption of revamped operational practices has managed the challenges of equipment capabilities, torque and drag, ECD, wellbore stability, hole cleaning and stuck pipe avoidance to name a few. The project drilled longer wells at less costs. This approach has resulted in drilling and completion of wells comfortably within the equipment-rating envelope. Additional technological means such as newly developed lubricant and mechanical drill pipe torque reducer subs helped reduce the friction factor and eliminate drill string buckling. Existing technology in the bottom-hole assembly (BHA) minimized the tortuosity in the wellbore, along with transmitted real-time downhole drilling data (Torque, Weight on Bit, Mechanical Specific Energy, and Equivalent Circulating Density) which helped in active drilling parameters optimization for efficient drilling. Similar technologies and practices were used in landing the completion string.
The geo-mechanical studies undertaken at the concept stage and later revised against the offset well information helped in drilling the troublesome shale formations with no associated events. Specific importance was given to maximizing the hole cleaning by having the right tools in the BHA that could accommodate higher flow rates while using a tandem drill string for lower hydraulics. In addition, the newly formulated field / formation specific drilling and reaming practices minimized the stuck pipe, saving approximately 10% in overall well costs.
This paper discusses the successful drilling of a number of offshore ERD wells with various complexities and tailored solutions with minimal downhole problems and within continuously revising planned times and budgets. The lessons learned and techniques associated with drilling of extended-reach wells at lower costs will be detailed in this paper. This information would give insights and considerations to all stakeholders who intend to drill extended reach wells or challenge their current limiters. This proven successful methodology and its results are considered a benchmark for the nearby fields in the region.
A Subsurface Sectorization Workflow for Assessing Reservoir Properties, Screening for Remaining Hydrocarbon Volumes and Ranking of EOR Methods to Improve the Reservoir Ultimate Recovery Factor
Authors: Gerges Nader , Rihet Jeremy , Walley Stuart 
Published: November 2019

Abstract
Enhanced Oil Recovery (EOR) strategies are becoming increasingly common in the Middle East, used primarily for optimizing mature fields. The final location, selected for any EOR scheme, is often critical to its ultimate success and developing new methods to investigate the most optimal EOR locations can add significant value in optimizing recovery from mature fields. One approach for a given field, is to subdivide 3D Geo-cellular model into different sectors and perform a statistical analysis of the 3D model's properties (porosity, permeability, saturations, etc.) in each individual sector. This task is usually performed manually and can be resource intensive and time-consuming. In particular, in the case of large mature fields in the Middle East, the scale and data volume involved often makes the workflow impractical to implement. Advanced ‘automation methods’, developed to rapidly generate EOR sectors and perform the statistical analysis of 3D model properties are therefore necessary. This work presents a new workflow implemented for extracting and analyzing model properties at a scale relevant for EOR planning in large scale Middle East Fields.
ExxonMobil's Experience with Sour Gas Treating and Acid Gas Handling
Authors: Northrop Scott , Seagraves Jenny , Ramkumar Shwetha , Cullinane Tim 
Published: November 2019

Abstract
Development of sour gas reserves involves extraction, treating, and disposal steps that can be operationally complex. Historically, highly sour gas reserves are left undeveloped because of the technical challenges and high production costs. These reserves are now being reevaluated as potential sources of supply in areas with high demand for natural gas.
To address development challenges, ExxonMobil has applied a dual approach to advancing technologies. First, our broad experiences and well-defined best practices are used to select technologies that best meet the "routine" aspects of sour natural gas development and production. Second, ExxonMobil's industry-leading research capabilities are applied to create new technologies that make treating of difficult sour gas streams feasible.
ExxonMobil has over 70 years of experience in operating and developing technologies for gas treating. Relevant experiences will be described along with the efforts to develop and apply innovative technical solutions needed to develop these reserves. Examples include FLEXSORB™ SE solvent for acid gas enrichment and tail gas clean up, the Controlled Freeze Zone™ process for separating significant concentration of contaminants from natural gas, and cMIST™ technology for dehydration and selective H2S removal from raw gas. Each of these technologies will be discussed in some detail, as will our general experience with sour gas treating.
This paper illustrates how new technologies developed by one company can become part of the body of applied science that ultimately benefits the broader industry.