bluuebunny/crossref_metadata_2025_split huggingface dataset:
Concordance of PCR and Early Thorax Computed Tomography Findings in COVID-19 Patients
Authors: ALANLI Recep , KÜÇÜKAY Murat Bülent , ÇİÇEK Okan , YALÇIN Kadir Serkan , BEŞİRBELLİOĞLU Bülent Ahmet 
Published: November 2020

Aim: The aim of this study was to investigate concordance between polymerase chain reaction (PCR) test results and early thorax computed tomography (CT) findings of the patients in whom coronavirus disease 2019 (COVID-19) was suspected after evaluation of their complaints and physical examination findings.
Material and Methods: One hundred and fourteen patients with suspicion of COVID-19, evaluated for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) existence with PCR test and performed thorax CT in the first 48 hours, between April and July 2020, were enrolled in this study retrospectively. Demographic characteristics, laboratory parameters and thorax CT findings of PCR positive and negative patients were compared. If patients had negative PCR test results, but clinical suspicion for COVID-19 persisted, additional PCR samples were tested at 48-hour intervals.
Results: Interlobular septal thickening was more frequent in PCR positive patients (p=0.043). There was no significant thorax CT finding in 16 (28.6%) PCR positive and 14 (24.1%) PCR negative patients. Bilateral, peripheral and multilobar ground glass opacifications, consolidation and interlobular septal thickening were the most frequent findings in both groups. Neutrophil (p
Evaluation of Computed Tomography, Clinical and Laboratory Findings of COVID-19 in Cancer Patients
Authors: KÖŞECİ Tolga , KAYA Ömer , DİLEK Okan , ALİŞAN İrfan , HAKSÖYLER Veysel , BOZKURT DUMAN Berna , ÇİL Timuçin 
Published: November 2020

Aim: The aim of this study was to evaluate the computed tomography (CT), clinical and laboratory findings of coronavirus disease 2019 (COVID-19) in cancer patients and to compare the findings between polymerase chain reaction (PCR) positive and negative patients.
Material and Methods: Twenty-three cancer patients with positive PCR tests and 22 diagnosed as COVID-19 with clinical and radiological findings were included in the study. CT images of the patients were evaluated simultaneously by two radiologists. Presence of comorbid diseases, symptoms and laboratory values were evaluated.
Results: The most common CT involvement pattern was peripheral with 88.9% (n=40). Bilateral lung involvement rate was 57.8% (n=26). The most common finding was ground glass opacities (n=38, 84.5%). 35.6% (n=16) of these were accompanied by consolidation. Multifocal involvement was present in 62.2% (n=28) of the cases. The most frequently involved lobes were lower lobes. Other relatively common findings were septal thickening, subpleural streaking, and air bronchogram. The median neutrophil, lymphocyte, D-dimer, procalcitonin, C-reactive protein and lactate dehydrogenase values of the patients were 2000 mm3, 1200 mm3, 1990 ng/mL, 30.7 mcg/L 15.8 mg/dl, 161 IU/L, respectively.
Conclusion: Multifocal and bilateral involvement, and ground glass opacities were the most common findings. However, higher rates of septal thickening, which is generally less common, suggest that the findings may be more severe in cancer patients. Most of the inflammatory markers were higher in PCR negative cases. Studies with more patients in multiple centers will provide better comparison of the findings in cancer patients with the general population.
Os custos do bem-estar social: como fechar a conta no ordenamento socioeconômico brasileiro?
Authors: Pompeu Gina Vidal Marcílio , Matos Liliane Gonçalves 
Published: November 2020

Por meio deste artigo, discute-se a adequação dos custos do Welfare State à Lei orçamentária como mecanismo para cumprir a ordem socioeconômica brasileira. Para tanto, apresenta-se as teorias econômicas de intervenção do Estado; delineia-se a ordem socioeconômica e aborda-se a adequação do solidarismo às metas orçamentarias. Conclui-se que desenvolvimento social demanda políticas públicas impositivas, entretanto, deve-se considerar as razões do crescimento econômico. A pesquisa é descritiva-analítica, doutrinária e documental sobre: a) as formas de intervenção do Estado; b) a ordem socioeconômica e; c) respeito à Lei Orçamentária. Já a abordagem, é qualitativa pois analisa o papel do Estado.
Palavras-chaves: Teorias econômicas. Ordem socioeconômica. Custos do Estado Social.
Quality Assurance (QA) Dan Quality Control (QC) Pada Instrumen Radioterapi Pesawat LINAC
Authors: Suharmono Bambang Haris , Anggraini Ika Yuni , Hilmaniyya Hilmaniyya , Astuti Suryani Dyah 
Published: November 2020

Abstract LINAC is a radiotherapy instrument used to kill tumor and cancer cells in patients. To guarantee the quality of LINAC instruments, QA (Quality Assurance) is needed and to prove the quality assurance there is a need for QC (Quality Control). This is done also aims to examine and test data to determine standards and check the suitability of products to achieve maximum manufacturing operations or measures taken, namely to assess, maintain or improve the quality of treatment given. The role of medical physicists is very important because only medical physicists carry out the implementation of quality assurance of radiotherapy instruments. Keywords: Radiotherapy, Linear Accelerator, Quality Assurance, Quality Control AbstrakLINAC adalah instrumen radioterapi yang digunakan untuk mematikan sel tumor maupun kanker pada pasien. Untuk menjamin kualitas instrumen LINAC, maka diperlukan QA (Quality Assurance) dan untuk membuktikan adanya jaminan kualitas perlu QC (Quality Control). Hal ini dilakukan juga bertujuan untuk memeriksa dan menguji data untuk menentukan standar dan mengecek kesesuaian produk mencapai operasi manufaktur yang maksimum atau ukuran yang diambil yaitu untuk menilai, merawat atau memperbaiki kualitas perlakuan yang diberikan. Peran fisikawan medis sangat penting karena hanya fisikawan medis yang menjalankan pelaksanaan jaminan kualitas instrumen radioterapi. Kata kunci: Radioterapi, Linear Accelerator, Quality Assurance, Quality Control
Penerapan Latihan Keterampilan Sosial: Bermain Peran Pada Pasien Skizofrenia dengan Masalah Keperawatan Isolasi Sosial Di Ruang Puri Mitra RSJ Menur Surabaya
Authors: Larasati Herdiana Putri 
Published: November 2020

ABSTRACTPatients have difficulty in spontaneously relating to others who are manifested by isolating themselves, not being mindful and unable to share experiences. If social isolation patients are not resolved quickly, they can endanger the safety of themselves and others. The purpose of this research is to apply social skills training therapy: role play with social isolation nursing problem in Puri Mitra Meniran Mental Room of Menur Surabaya. The study design uses a case study, the subject of one patient's study with a catatonic diagnosis of schizophrenia, with social isolation nursing issues. Methods of collection by observation, interview, physical examination, and application of social skills training therapy: role play. Application of social skills training therapy: this role play is performed for approximately 60 minutes every day. The application is given in SP 1 step 6 on the 9th day indicating the patient is willing to communicate with others. Once this implementation is applied there is an increase in interacting with others. So the more often done for patients with social isolation then very helpful and facilitate the patient in interacting with others. Keywords: Social Isolation, Social Skills; Role Playing AbstrakPasien mengalami kesulitan dalam berhubungan secara spontan dengan orang lain yang dimanifestasikan dengan mengisolasi diri, tidak ada perhatian dan tidak sanggup berbagi pengalaman. Bila pasien isolasi sosial tidak cepat teratasi maka akan dapat membahayakan keselamatan diri sendiri maupun orang lain. Tujuan penelitian ini untuk menerapkan terapi latihan keterampilan sosial: bermain peran dengan masalah keperawatan isolasi sosial di Ruang Puri Mitra Rumah Sakit Jiwa Menur Surabaya. Desain penelitian menggunakan studi kasus, subjek penelitian satu orang pasien dengan diagnosa medis skizofrenia katatonik, dengan masalah keperawatan isolasi sosial. Metode pengumpulan dengan cara observasi, wawancara, pemeriksaan fisik, dan penerapan terapi latihan keterampilan sosial: bermain peran. Penerapan terapi latihan keterampilan sosial: bermain peran ini dilakukan selama kurang lebih 60 menit setiap hari. Penerapan tersebut diberikan dalam SP 1 langkah ke 6 di hari ke 9 menunjukkan pasien mau berkomunikasi dengan orang lain. Setelah diberikan penerapan ini terjadi peningkatan berinteraksi dengan orang lain. Sehingga semakin sering dilakukan untuk pasien dengan isolasi sosial maka sangat membantu dan mempermudah pasien dalam berinteraksi dengan orang lain. Keywords: Isolasi Sosial, Keterampilan Sosial; Bermain Peran
E&P Notes (November 2020)
Authors: JPT staff _ 
Published: November 2020

Shell Explores Plans for North Slope Development
Dutch oil major Shell is looking to further develop its North Slope oil position in Alaska. The company’s offshore unit applied to form the West Harrison Bay Unit offshore from the National Petroleum Reserve–Alaska with plans for drilling and exploration.
The proposed West Harrison Bay Unit comprises 18 leases in West Harrison Bay approximately 34 miles northwest of the Colville River Unit. Shell holds 100% working interest in those 18 leases, covering more than 78,000 acres in the proposed unit.
The company is identifying partners to share in the risk and costs, with plans to drill exploration wells in the West Harrison unit with at least one sidetrack each in 2023 and 2024.
Because economic uncertainty from the pandemic and oil-price crash made negotiations difficult with potential partners, Shell requested the initial West Harrison Bay exploration plan to be for 5 years to allow enough time to find a partner and improve its plan.
The wells would target the Nanushuk oil formation first identified by the Repsol-Armstrong Energy partnership in the Pikka Unit. The shallow, conventional formation also forms the basis of ConocoPhillips’ large Willow oil prospect to the south of Harrison Bay and is believed by many in the industry to be prolific across much of the western North Slope.
Shell has been operating in Alaska since the 1950s when it began exploration in the Cook Inlet Basin. It acquired the West Harrison Bay leases in 2012, and redirected focus to the leases in 2017, generating five standalone prospects in the Nanushuk and multiple leads in the Torok formation and Jurassic Alpine-like plays.
Saltwater Disposal Optimization Drives Water Midstream Sector
Authors: Feder Judy 
Published: November 2020

Salt water, produced water, waste water, oilfield brine - regardless of what you call it, large volumes have been coproduced with oil in the US for decades. But the volumes have surged in the past few years and doubled since 2009, along with widespread seismicity in some regions, most notably Oklahoma and, more recently, the Permian Basin. The increase in produced water and concerns about its effects have recently spawned a new business sector known as “the water midstream.”
An estimated $9 billion to $11 billion of private capital has been committed to the oilfield water midstream business to date, and a further $16 billion is projected to be required. The value proposition for this business is optimizing the treatment and disposal of produced water, currently at water/oil ratios of approximately 4:1 for unconventional wells and 13:1 for conventional, at scale. A key performance indicator of that value is the ability to provide reliable underground water-storage capacity while avoiding seismic events and potential aquifer contamination, both of which have been linked to produced water.
Technology Focus: Drilling and Completion Fluids (November 2020)
Authors: Jan Badrul Mohamed 
Published: November 2020

This year marks the end of my third term as the Drilling and Completion Fluids reviewer on the JPT Editorial Review Board, and this is my final column in that capacity. The journey has been an amazing one.
It is no secret that nanomaterial is useful in many applications. Its application in drilling fluids is well documented. Nanomaterial exhibits many attractive and unique properties such as the ability to improve mudcake quality, reduce mud-filtrate loss and friction, eliminate differential pipe sticking, maintain bore-hole stability, protect the reservoir, and enhance hydrocarbon recovery.
Recent research indicates great interest in the use of nanocomposite in drilling fluids. Several researchers are working on formulating various types of nanocomposites to improve functionality and strengthen base fluids. Nanocomposite refers to multiphase solid material in which one of the phases has one, two, or three dimensions of less than 100 nm, or in which structures having nanoscale repeat distances between the different phases making up the material.
There is a growing interest in using nanocomposites to improve drilling-fluid rheology. In recent years, an additive derived from a sequence of graphene-based materials has been reported. The progress of these graphene derivatives has been used as a paradigm for water-based drilling fluids. The evolution of these engineered nanocomposites enhances drilling attributes by providing enriched rheology and other significant properties. Simultaneously, it is equally crucial to produce various nanomaterials from low-cost and eco-friendly sources.
Addition of Surfactant-Modified Graphene Improves Water-Based Drilling Mud
Authors: Carpenter Chris 
Published: November 2020

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 197774, “Improvement in Rheological Features, Fluid Loss, and Swelling Inhibition of Water-Based Drilling Mud by Use of Surfactant-Modified Graphene,” by Azeem Rana and Tawfik A. Saleh, King Fahd University of Petroleum and Minerals, and Mohammad K. Arfaj, Saudi Aramco, prepared for the 2019 Abu Dhabi International Petroleum Exhibition and Conference, Abu Dhabi, 11-14 November. The paper has not been peer reviewed.
This paper reports the effect of sodium dodecyl sulfate modified graphene (SDS-Gr) on the rheological features, fluid loss, and swelling inhibition mechanism of clay. The outcomes revealed that the addition of SDS-Gr to traditional drilling mud clearly affects the rheological properties, increasing its suitability for drilling. Moreover, SDS-Gr additive reduces fluid loss by 20% compared with the mud without SDS-Gr.
New Low-Impact Drilling Fluid for Deepwater Applications
Authors: Feder Judy 
Published: November 2020

This article, written by JPT Technology Editor Judy Feder, contains highlights of paper OTC 29802, “Low-Impact Drilling Fluid for Deepwater Drilling Frontier,” by Erna Kakadjian, April Shi, and Justin Porter, Baker Hughes, et al., prepared for the 2019 Offshore Technology Conference Brasil, Rio de Janeiro, 29-31 October. The paper has not been peer reviewed. Copyright 2020 Offshore Technology Conference. Reproduced by permission.
This paper describes a low-impact, nonaqueous drilling fluid (LIDF) designed to minimize equivalent circulating density (ECD) increases and associated risks in deep water by reducing the effect of cold temperature on fluid viscosity. The fluid offers a superior low-viscosity profile and rapid-set, easy-break gel strengths while maintaining low shear-rate viscosity at high temperatures with optimal-weight material suspension. Field application demonstrated that the LIDF reduced the effect of temperature on the fluid rheological properties and minimized the risk of induced formation losses. These same rheological features reduced nonproductive time (NPT) associated with cement displacement and barite sagging.
Technology Focus: Horizontal and Extended-Reach Wells (November 2020)
Authors: Menand Stéphane 
Published: November 2020

This year obviously has seen tremendous changes in our industry. No one could have anticipated the pandemic that has drastically reduced oil and gas demand globally. What is almost certain is that this pandemic has triggered an acceleration of the digitalization and automation of the industry, a probable transformation of our work environment, and a possible quicker transition toward cleaner energy.
If drilling an oil well still requires the physical presence of a crew, the drilling industry surprised itself at seeing that drilling activity could be operated and supported remotely and efficiently from home. More and more wells are already drilled with different levels of automation that produce fantastic and consistent performance. It is probably just the beginning. We are only now digesting the tremendous amount of surface and downhole data available in nearly real time using machine learning or physical-based models to then feed the control systems to command the machines.
Our understanding of drilling with better software, instrumentation, machines, computer vision, downhole tools, and robots will continue improving the economics of horizontal wells, and the trend is set to continue. This is good news for the geothermal market, which will benefit from these overall improvements in horizontal drilling.
Even though geothermal drilling in hard and hot rock is not new, with the push toward cleaner and renewable energy, many projects and studies already have begun to produce geothermal energy from oil and gas horizontal gas wells using the hot water coproduced during oil and gas production. Instead of simply reinjecting the fluids into the ground, why not extract the heat from them? Even though fluid volume and temperature require a given threshold to be economical, advances in energy-conversion systems make the approach commercially viable.
Other projects consist of economically drilling multiple horizontal wells several kilometers below the surface connected by two vertical wells, circulating a geothermal fluid in a sealed pipe and creating a closed-loop system to generate large scale electricity or heat for homes or industries. There is a good opportunity for the drilling industry to leverage its technologies and processes initially developed for horizontal oil and gas wells to tap geothermal resources economically and at large scale.
Comprehensive Cuttings-Transport Model Optimizes Drilling Operations for Hole Cleaning
Authors: Feder Judy 
Published: November 2020

This article, written by JPT Technology Editor Judy Feder, contains highlights of paper IADC/SPE 199587, “Modeling Cuttings Transport and Annular Packoff Using Local Fluid Velocities With the Effects of Drillstring Rotation and Eccentricity,” by Oney Erge, SPE, and Eric van Oort, SPE, The University of Texas at Austin, prepared for the 2020 IADC/SPE International Drilling Conference and Exhibition, Galveston, Texas, 3-5 March. The paper has not been peer reviewed.
This paper discusses a new, comprehensive cuttings-transport model designed to enable safe and improved hole-cleaning operations. Local velocity profiles are calculated for a given fluid and compared against the local critical velocity for cuttings transport. Then, the location and the magnitude of annulus blockage are numerically assessed. After an annulus becomes partially blocked with cuttings deposited in a cuttings bed, continuity and momentum equations are solved for the blocked annulus to estimate the new local velocities. The annulus is divided into small sections, and the pressure profile is calculated with the progression of time. The results from this study agree with large-scale flow-loop experiments and field observations, showing that axial flow alone is not enough for effective hole cleaning in high-deviation and horizontal wells. The results also provide a way to predict packoff events during which the string can become stuck, the equivalent circulating density can spike, and lost circulation can occur.
New Method Determines Well Spacing in Unconventional Reservoirs
Authors: Carpenter Chris 
Published: November 2020

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper URTeC 2584, “A New Methodology To Determine Well Spacing in Unconventional Reservoirs: Delaware Basin Study,” by Dicman Alfred and Andrew Lundy, Scala Energy, prepared for the 2020 Unconventional Resources Technology Conference, originally scheduled to be held in Austin, Texas, 20-22 July. The paper has not been peer reviewed.
Present industry solutions to the challenge of well spacing involve expensive geomechanical Earth modeling or fracture-geometry monitoring that is time-consuming, data-intensive, and geography-specific. The authors of the complete paper write that their developed methodology is quicker and pad-specific and requires no additional data collection than those routinely gathered. Other significant outcomes of this work flow include the ability to rank well performance and predict changes in geology and pressure regimes relative to an existing similarly landed producer.
New Multiphase Pump System Can Handle Up to 100% Gas Volume Fraction
Authors: Carpenter Chris 
Published: November 2020

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 196296, “Gas-Field Revitalization Using Optimized Multiphase Pump Installations That Can Manage up to 100% Gas Volume Fraction: First Application in Algeria,” by Luis E. Granado, SPE, and Antonio Drago, Eni, and Faycal Smail, Sonatrach, et al., prepared for the 2019 SPE/IATMI Asia Pacific Oil and Gas Conference and Exhibition, Bali, Indonesia, 29-31 October. The paper has not been peer reviewed.
After production startup of lean and rich gas fields in Algeria, some reservoirs experienced a continuous pressure decline that affects the real production potential of many wells. To have the flexibility to treat both rich and lean gas wells [up to 100% gas volume fraction (GVF)], a new multiphase pump system has been developed by comparing the different boosting systems performance and analyzing well-by-well production scenarios. With two systems installed successfully in different configurations, all involved wells have produced with an optimized bottomhole drawdown to extend productive life.
Installation of Gas Ejector Provides Boost to Low-Pressure Gas Well
Authors: Carpenter Chris 
Published: November 2020

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 196440, “Giving a Boost to a Low-Pressure Gas Well by Installing a Gas Ejector,” by Ping Wei and Brian Macdonald, SPE, KUFPEC, prepared for the 2019 SPE Asia Pacific Oil and Gas Conference and Exhibition, 29-31 October, Bali, Indonesia. The paper has not been peer reviewed.
To further reduce backpressure on low-pressure gas wells and increase reserves in a mature gas field, a gas-ejector project was evaluated and proposed. Following on-site tests on several gas wells, the gas ejector was put into service successfully. Reservoir simulation estimates that 6.4 Bcf of incremental reserves will be achieved through gas-ejector installation by decreasing inlet pressure to 50 from 100 psi. The application of the gas ejector during a 2-year period to reduce backpressure has helped to improve economics in a mature gas field.