bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluasi Model Discrepancy: Salah Satu Model Evaluasi Program Konseling
Authors: Saputra Wahyu Nanda Eka
Published: March 2020

Konseling adalah jantung hati layanan bimbingan dan konseling. Pentingnya layanan konseling merupakan sebuah peluang dan sekaligus tantangan. Peluang dalam hal ini, konselor memiliki peluang yang besar jika mampu mengimplementasikan program konseling dengan baik untuk mengentaskan masalah siswa. sekaligus tantangan, konselor tidak bisa dihindarkan dari kebiasan konselor yang mengimplementasikan program konseling yang tidak sesuai dengan standar.

Pentingnya program konseling ini, tentunya membutuhkan satu usaha untuk menilai keberhasilan program konseling. Salah satunya adalah dengan melaksanakan evaluasi. Tipe evaluasi yang bisa digunakan adalah evaluasi dengan model discrepancy. Makalah ini akan mendeskripsikan evaluasi model discrepancy untuk melihat kesenjangan performa program konseling dengan standar yang ditentukan.
Kinerja Guru Bimbingan dan Konseling SMP di Sub Rayon 01 Kota Bekasi
Authors: Hidayat Dede Rahmat , Badrujaman Aip , Suryarsi Siti
Published: March 2020

Penelitian ini bertujuan untuk mengetahui perbedaan kinerja Guru Bimbingan dan Konseling (BK) berdasarkan: Kualifikasi Akademik dan status kepegawaian. Selain itu penelitian ini juga bertujuan untuk mengetahui hubungan jumlah siswa asuh dengan kinerja Guru Bimbingan dan Konseling. Populasi dan sampel penelitian adalah semua Guru Bimbingan dan Konseling SMP di Sub Rayon 01 Kota Bekasi yang berjumlah adalah Guru Bimbingan dan Konseling sebanyak 53 orang. Teknik pengumpulan data dengan menggunakan Instrumen PKG dan dokumentasi. Data dianalisis menggunakan Mann-Whitney U-Test. hasil bahwa kinerja Guru Bimbingan dan Konseling yang Kualifikasi Akademik S1-BK memiliki kinerja yang lebih tinggi dengan Guru Bimbingan dan Konseling yang non BK. Berdasarkan status kepegawaian Guru Bimbingan dan Konseling PNS memiliki kinerja yang lebih tinggi dibandingkan dengan guru BK non PNS.
Hubungan Antara Kepuasan Hidup dan Kesejahteraan Psikologis pada Siswa SMA Negeri Se-Jakarta Pusat
Authors: Wahyuni Eka , Maulida Irma
Published: March 2020

Penelitian ini bertujuan untuk mengetahui hubungan antara kepuasan hidup dan kesejahteraan psikologis pada siswa SMA Negeri Se-Jakarta Pusat. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan kuantitatif dengan jenis korelasional. Populasi penelitian terdiri dari seluruh siswa di SMA Negeri Se-Jakarta Pusat yang terdiri dari 13 sekolah dengan sampel 1.253 siswa. Penentuan sampel menggunakan teknik multistage random sampling. Data diperoleh dengan menggunakan skala kepuasan hidup dan kesejahteraan psikologis. Uji validitas menggunakan expert judgment dan uji coba intrumen dengan penentuan gugur atau tidaknya item dengan rumus Product Moment dari Pearson’s. Uji reliabilitas menggunakan rumus Alpha Cronbach dengan program SPSS for Windowsrelease16.0 diperoleh koefisien reliabilitas skala skala kepuasan hidup sebesar 0,710 dan kesejahteraan psikologis sebesar 0,877. Analisis data menggunakan korelasi product moment dari Pearson’s dengan program SPSS for Windowdsrelease16.0. Hasil penelitian menujukan bahwa mayoritas siswa di SMA Negeri Se-Jakarta Pusat memiliki tingkat kepuasan hidup pada kategori sedang (71%) sebanyak 894 siswa dan tingkat kesejahteraan psikologis pada kategori sedang (73%) sebanyak 910 siswa. Hasil pengujian hipotesis menunjukan bahwa r hitung = 0,494 dengan taraf signifikansi 0,05%, maka diperoleh r table = 0,062, didapatkan bahwa r hitung > r table, dengan demikian terdapat hubungan positif dan signifikan antara kepuasan hidup dan kesejahteraan psikologis pada siswa SMA Negeri Se-Jakarta Pusat.
Use of a Fascia Lata Autograft to Reconstruct a Large Triceps Tendon Defect After En-Bloc Resection of a Soft-Tissue Sarcoma
Authors: Clancy Rachel , Lim Zachary , Ravinsky Robert A. , O'Neill Anne , Ferguson Peter , Wunder Jay
Published: March 2020

Case:

In this report, we present the case of a patient undergoing en-bloc resection of a large triceps soft-tissue sarcoma, requiring reconstruction of the triceps tendon including its distal insertion. We describe a surgical technique using fascia lata (FL) autograft to reconstruct the patient's extensor mechanism with long-term follow-up and functional results.

Conclusions:

FL autograft is a viable option for reconstruction of large tendinous defects. It is simple and straightforward to harvest, inexpensive when compared with alternatives, with many potential applications.
Time-Dependent Magnetic Resonance Imaging Changes in Occult Femoral Neck Fracture During Conservative Treatment
Authors: Yoshida Naoki , Tsuchida Yoshihiko , Murakami Hiroko , Shirakawa Tetsuya , Futamura Kentaro , Kohzuki Masahiro
Published: March 2020

Case:

A 53-year-old woman presented to the emergency department with persistent left hip pain after a fall while riding a bicycle. Although x-ray imaging revealed no evidence of fracture, an abnormal intensity vertical line along the left femoral neck was observed in the magnetic resonance imaging (MRI). Furthermore, 2 weeks after injury, MRI revealed a newly developed abnormal intensity oblique band at the femoral neck. After discussing several treatment options with the patients, she chose the conservative treatment.

Conclusion:

Careful follow-ups and MRI were undertaken 6 times within 32 weeks. Bone union was observed 32 weeks after the injury, and no bone displacement was observed.
Osseointegration for Amputees
Authors: Hoellwarth Jason Shih , Tetsworth Kevin , Rozbruch S. Robert , Handal M. Brianne , Coughlan Adam , Al Muderis Munjed
Published: March 2020

» Osseointegrated prostheses provide a rehabilitation option for amputees offering greater mobility, better satisfaction, and higher use than traditional socket prostheses.

» There are several different osseointegrated implant designs, surgical techniques, and rehabilitation protocols with their own strengths and limitations.

» The 2 most prominent risks, infection and periprosthetic fracture, do not seem unacceptably frequent or insurmountable. Proximal amputations or situations leading to reduced mobility are exceptionally infrequent.

» Osseointegrated implants can be attached to advanced sensory and motor prostheses.
Empleo del modelo SRNS para predecir la ganancia de peso en ovinos machos Pelibuey en crecimiento
Authors: Duarte-Vera F. , Sandoval-Castro C. , Sarmiento-Franco L.
Published: March 2020

El objetivo del trabajo fue evaluar los ajustes en el índice de madurez, el valor para metabolismo basal y el peso vivo vacío, sobre la capacidad del modelo Small Ruminant Nutrition System (SRNS) para predecir la ganancia diaria de peso vivo (GDP) en ovinos Pelibuey durante la etapa de crecimiento. El trabajo se realizó en la Facultad de Medicina Veterinaria y Zootecnia de la Universidad Autónoma de Yucatán, México. Se utilizó una base de datos constituida por 26 experimentos y 77 dietas, con un total de 1112 ovinos Pelibuey machos. Para el índice de madurez (P), el peso maduro se estimó mediante una curva de crecimiento, siendo éste de 66 kg. Para la evaluación del modelo, se utilizó el programa Model Evaluation System con los siguientes indicadores: El análisis de la regresión lineal; el error estándar de la estimación (MSE); el coeficiente de concordancia de la correlación (CCC); la media mínimo cuadrática del error de la predicción, (MSEP); la eficiencia del modelo (MEF), y el coeficiente de determinación del modelo (CD). El modelo sin ajustar, subestima la predicción de la ganancia de peso vivo. El índice de madurez ajustado con el peso maduro de machos Pelibuey y el valor para el metabolismo basal de 0,039 Mcal de EM/kg0,75 mejoraron la precisión y exactitud del modelo sobre la predicción de la GDP en machos Pelibuey. Se concluye que el valor del metabolismo basal es menor en ovinos Pelibuey que en razas lanares y que el valor ajustado del metabolismo basal en la ecuación para estimar las necesidades de mantenimiento en el SRNS mejora la predicción de la GDP en machos Pelibuey en crecimiento y que el ajuste por el contenido gastrointestinal no presenta ventajas para utilizarse en el modelo.
Composição mineral de fosfatos, calcário e farinha de ossos usados na agropecuária brasileira
Authors: Avelar A. C. , Ferreira W. M. , Brito W. , Menezes M. A. B. C.
Published: March 2020

Este estudo teve como objetivo caracterizar os fosfatos, um calcário e uma farinha de ossos comumente usados na agropecuária brasileira. A solubilidade dos fosfatos foi determinada usando soluções de 2 e 10% de ácido cítrico. A farinha de ossos calcinada e o sal mineral bovino apre-sentaram baixas solubilidades. Diversas técnicas foram empregadas nas análises minerais: difratometria de raios-x, absorção atômica de forno de grafite, colorimetria, gravimetria e ativação neutrônica. Com exceção dos fosfato sulfato de amônio e monoamônico, vários fosfatos analisados, bem como a farinha de ossos, são fontes simultâneas de fósforo e cálcio. Muitos destes produtos são também fontes de outros elementos como S, Si, Na, Fe, Zn e Co.
Projeto Geroleite. Melhora da gestão da produção leiteira: caso cooperativa agropecuária de Macaé-Rj
Authors: Oliveira C. A. , Almeida J. C. C. , Pimentel F. M. , Moraes P. , Branco C. C.
Published: March 2020

O objetivo foi a coleta de dados no período de dezembro de 2001 a maio de 2002, no município de Macaé-RJ, com a participação inicial de 15 produtores cooperados da Cooperativa Agro-pecuária de Macaé, RJ, participando com plantel total de 1646 vacas, a fim de gerar relatórios como operacional e de performances, onde os produtores podiam tomar decisões de cunho administrativo. Foram emitidos 168 relatórios, com periodicidade mensal. Com o relatório operacional os produtores monitoravam a situação reprodutiva e produtiva de suas matrizes, e com o relatório de performances os seus índices zootécnicos e suas despesas, com ênfase no custo de produção mensal da leite. Através do custo de produção mensal, esperou-se que os produtores tomassem decisões voltadas à gestão de suas propriedades, dessa forma exigindo tecnologias que fossem capazes de reduzir seus custos. Os resultados mostraram que os produtores conseguiram nesse período, reduzir o custo médio do litro de leite em 0,3%, redução média na despesa mensal da ordem de 2,5%, redução na produção média mensal da ordem de -0,6% e, incremento na produtividade por vaca/dia da ordem de 3,6%.
Efeito da suplementação com selênio sobre a concentração sérica de Creatina Kinase em bovinos
Authors: Reis L. S. L. S. , Chiacchio S. B. , Pardo P. E. , Takahira R. T. , Couto R. , Oba E. , Kronka S. N.
Published: March 2020

O estudo avaliou os efeitos da adição de diferentes concentrações de Se na mistura mineral sobre concentrações séricas de creatina quinase (CK) em bovinos. 60 bovinos da raça Nelore, machos, com aproximadamente 12 meses de idade, divididos aleatoriamente em 4 grupos de 15 bezerros: Gc, G3,6, G5,4 e G6,4 suplementados com 0; 3,6; 5,4 ou 6,4 mg Se/bovino/dia. A concentração sérica de CK, não sofreu efeito de interação concentração de selênio x tempo, nem concentração de suplementação. Porém, independente da concentração de selênio na dieta, CK aumentou ao longo do tempo e a suplementação com 6,4 mg Se elevou (p
Legal Protection and the Problem of Accessibility for Diffable: A Comparative Study between Islamic Law and Indonesian Law
Authors: Sopyan Yayan
Published: March 2020

As a Nation of Laws, every citizen is guaranteed to their freedom, being admitted and protected to their dignity, and also possesses the same position in the presence of law. Indonesia acknowledges and protects the human rights of its citizens without differentiating their background as enshrined in the 1945 Constitution. Part of Indonesian citizens is diffable (different in ability) group and they are supposed to have the same rights, responsibility, and positions as others. However, they have physical and psychological limitations and are considered to have difficulties to access public facilities without giving them the proper access. Accessibility is an important role to actualize the parity of opportunities in every aspect of life. It is an easiness provided for diffable people to achieve the same chance. In Islam, the issue of diffability has been discussed too which is drawn from the Qur’an and Hadith as the major source of Sharia. This article aims to point out the intersection between Islamic law and Indonesian law in providing concerns towards diffable people to obtain their rights and to observe how the legal protection to accessibility for diffable has been implemented. It finds that in the normative order, both Islamic and Indonesian law have provided adequate attention and protection for diffable people. Nevertheless, the means to provide access for them is yet to be optimal. The causes are: inconsistency to properly implement the law, incomplete facilities, and the unfriendly behavior and culture towards people with disabilities.Keywords: Islamic Law, Indonesian Law, Diffable, Accessibility
The Role of Health Belief Model in HIV Screening Decision among International Students in the United States: A Pilot Study
Authors: Ayosanmi Oluwasola Stephen , Oden Lorette , Ayosanmi Titilope , Alli Babatunde , Wen Mei , Johnson Jamie
Published: March 2020

Objectives:

We sought to determine how the Health Belief Model (HBM) constructs relate to Human Immunodeficiency Virus (HIV) screening decisions among international students and which of the HBM constructs was most relevant in those screening decisions.

Methods:

We conducted a cross-sectional pilot study using an online survey of international students at Western Illinois University in the United States. Participants signed electronic informed consent. The online survey comprised of questions that assessed their sociodemographic characteristics, acceptance of HIV screening, and perceived knowledge of HIV. The survey also determined the role of perceived benefits, perceived threat, and cues to action in making HIV screening decisions among the study population.

Results:

Four hundred and ninety students were invited to participate in the survey out of which 185 responses were obtained. In all, 107(57.8%) were males, and 78(42.8%) were females. Most of the respondents were from Asia (64.9%) and Africa (24.9%). The prevalence of acceptance of HIV screening among international students was found to be 73.5%. About 90% of the participants perceived HIV screening to be beneficial to their health, and 76% of them would accept the screening because they were offered. The majority (83%) of participants who said that they would not accept HIV screening, were also not sexually active, and they did not think they could be susceptible to HIV

Conclusion and Implications for Translation:

Perceived benefits and cues to action were found to be the significant factors that informed the decision of people who accepted to be screened for HIV Perceived susceptibility informed the decision of those that rejected the screening. Caution is warranted in generalizing the findings from this study because of the limited sample size; however, we are confident that our findings are reproducible in a larger population context.
Análisis de la movilidad espacial de la población asociada a huracanes a partir de la sombra digital geoespacial derivada de Twitter
Authors: Martín Yago
Published: March 2020

Múltiples investigadores creen que el estudio del comportamiento y movilidad espacial de la población ha alcanzado un cuello de botella debido a la rigidez de los métodos tradicionales de investigación en el campo y a la dificultad de acceso a información relevante y de confianza. La sombra digital geoespacial es una de las oportunidades más prometedoras para poder desarrollar y probar nuevas hipótesis en el estudio del comportamiento espacial, pero la aplicación de estos nuevos métodos todavía no ha sido suficientemente explorada en el campo de los riesgos y desastres. Este artículo recoge los últimos avances en este ámbito centrándose en la capacidad de la sombra digital geoespacial de redes sociales (Twitter) como un método innovador para el estudio del comportamiento espacial humano durante emergencias. Esta investigación rastrea las localizaciones de usuarios de Twitter durante el periodo pre-desastre para producir estimaciones del número de evacuados, y en los meses posteriores al desastre para estimaciones de desplazados y del impacto del evento en el turismo.
TANTANGAN GURU PAI MEMASUKI ERA REVOLUSI INDUSTRI 4.0 DALAM MENINGKATKAN AKHLAQ SISWA DI SMK PANCASILA KUBU RAYA KALIMANTAN BARAT
Authors: Asyari Farida
Published: March 2020

Dalam era revolusi industri ini memiliki pengaruh terhadap dunia pendidikan. Banyak perubahan sikap yang dialami siswa dengan notabene adalah generasi milenial yang sudah tidak asing lagi dengan dunia digital dan mereka telah terbiasa dengan arus informasi dan teknologi industri 4.0. Sikap-sikap yang muncul antara lain kecanduan gadget, cyber bullying, atau bahkan turunnya moral atau akhlak. Sehingga sudah sepatutnya guru agama islam memikirkan upaya yang tepat dalam menghadapi perubahan-perubahan perilaku siswa era 4.0 ini. Apabila keadaan ini tidak segera ditangani dengan serius maka akan berdampak pada hancurnya sikap, moral, dan akhlak siswa. Tak jarang kita menemukan masalah tersebut dalam dunia pendidikan.
PENGUATAN PENDIDIKAN PANCASILA SEBAGAI JATIDIRI, REFLEKSI, DAN TANTANGAN DALAM MEMBATASI PAHAM RADIKALISME MAHASISWA DI PERGURUAN TINGGI ISLAM PONOROGO
Authors: Hakim Lukman , Ekapti Rahmi Faradisya
Published: March 2020

Penelitian ini bertujuan untuk melihat bagaimana penguatan  Pancasila sebagai jatidiri, refleksi, dan tantangan dalam membatasi paham radikalisme mahasiswa di Perguruan Tinggi Islam  Ponorogo. Jenis penelitian ini merupakan gabungan penelitian dan pengembangan R&D (Research and Development) dan deskriptif kualitatif. Data validasi diperoleh dari 3 orang dosen yaitu ahli materi dari bidang agama, bidang pendidikan pancasila dan bidang bahasa. Data uji coba terbatas diperoleh dari 100 mahasiswa yaitu 25 orang dari kampus IAIN Ponorogo, 25 orang dari kampus Universitas Muhammadiyah Ponorogo dan 25 orang dari kampus UNIDA Gontor, dan 25 orang dari INSURI. Hasil pengembangan buku ini sesuai dengan kriteria kelayakan ahli diperoleh persentase rata-rata sebesar 76,67% dengan kategori layak. Kedua, Dari hasil uji coba terbatas diketahui 69% mahasiswa mengatakan paham konsep pancasila, persentase tingkat pemahaman lebih dalam mengenai pancasila sebagai jati diri, refleksi, dan tantangan sebesar 75,27% yang dapat dikategorikan tingkat pemahamannya baik. Ketiga, Pengendalian karakter mahasiswa dalam membatasi paham radikalisme mahasiswa di beberapa kampus yang ada di Ponorogo diperoleh persentase rata-rata sebesar 73,82% sehingga dapat dikatakan Buku kendali karakter ini dapat digunakan dengan baik dan menghasilkan karakter yang positif dalam pengimplementasian nilai-nilai pancasila dalam kehidupan.
Offshore Plug and Abandonment Operations with Coiled Tubing Service from Light Workover Vessel: A Case Study from Brazil Deepwater
Authors: Delgado Eduardo , Vinicius Dias Rodrigues Paulo , Nunes Mauro , Cler Frotte Adriano
Published: March 2020

The demand for well plug and abandonment (P&A) operations in Brazil has increased significantly during the last 3 years, resulting in a steep learning curve that can lead to development of state-of-the-art methodologies that save time, reduce operational risks, and provide reliable cost-effective solutions.

This paper presents a comprehensive analysis of recent well abandonment operations in a mature field in Brazil, which included wells that were depleted or no longer economically viable. A methodology is discussed and highlights the use of a casing collar locator (CCL) to perform depth correlation before setting packers and placing cement plugs, real-time pressure signals to monitor packer setting, and coiled tubing (CT) internal and external pressure management to help ensure that all cement is pumped out of the CT.
Using Simultaneous Services to Provide Operational Efficiency Gains and Reduce Operational Costs for Coiled Tubing/ Fiber Diagnostic Services
Authors: Butz Stephen , Williams Troy , McCarthy Caitlin
Published: March 2020

A case study is presented on increasing operational efficiencies using fiber optic-equipped coiled tubing to perform distributed temperature sensing (DTS) and distributed acoustic sensing (DAS) in conjunction with millout operations. In unconventionals with plug-and-perf or sliding-sleeve completions, hydraulic workover or coiled tubing is deployed to millout and clean the wellbore to total depth (TD) before the well can be put on production. Traditionally, the millout and cleanout process is a standalone operation. In the event a diagnostic service is performed on the well, a workover rig, coiled tubing unit, or wireline would be deployed in a second intervention after the initial millout is performed. This method presents a challenge to operators who want to bring wells online in a timely and economical manner.

By combining the millout and diagnostic cababilities into a single operation, operational efficiencies were significantly increased for the operator. Operators were able to minimize exposure to in-well operations and reduce the number of interventions necessary to bring a single well online. This resulted in a reduction of well shut-in time and faster data turnaround time on diagnostic evaluation. Simultaneous milling and diagnostic services were completed on 31 wells throughout 2018. Plug/Sleeve/Sand millouts were performed to well TD with a fiber-optic capable coil-tubing unit. Then the same work string was used to gather diagnostic data on the entire completion interval during the same run. These diagnostic data were collected and provided to the operator in an effort to better understand the completion design and hydraulic fracture placement. The operational efficiency gained by deploying diagnostic services in conjunction with the millout services lowered the operator's operation costs by USD 100,000 and operations time by 36 hr on average.
Coiled Tubing-Assisted Real-Time Temperature Mapping for Discerning Completion Integrity Followed by Optimized Placement and Evaluation of a Porosity Fill Treatment for Water Shutoff in Dual-String Completion Wells: Customized Solution
Authors: Al Matar Mohammed , Mohapatra Samarendra , Al-Ateeqi Hamad , Gaur Rishika , Chawla Sapna , Khandelwal Nakul , Almesfer Mohammad , Gorgi Sam
Published: March 2020

Increasing water cut and well integrity are currently major concerns, particularly in mature fields. Excessive water production can detrimentally affect the profitability of hydrocarbon-producing wells if not controlled properly. This paper describes a successful zonal isolation case study in a dual-string completion well with well integrity challenges and variable permeability intervals using a modified organically crosslinked polymer (m-OCP) and coiled tubing (CT)-assisted real-time temperature sensing for effective placement and post-operation evaluation.

The m-OCP system is a combination of a thermally activated, organically crosslinked polymer and particulate material for leakoff control to help ensure shallow matrix penetration. It is acid resistant, H2S tolerant, has controlled penetration, and is easy to clean up using a rotating wash nozzle. The setting time can be accurately predicted with simple laboratory tests. These characteristics make this system the preferred choice compared to the traditional cement squeeze method that is both time consuming and exorbitant. Diagnostic services delivered by CT-conveyed fiber-optic distributed temperature sensing (DTS) that add real-time capabilities to monitor well integrity assess reservoir performance and visualize treatment efficiency. Using real-time diagnostic services, tubing integrity was confirmed, and the treatment was placed in the same run, helping eliminate the possibility of an undesired leakoff. After allowing the setting time, a successful pressure test or post-cleanout DTS (in case pressure test is not feasible) was used to establish the reliability of this method.

The first attempt was made on Well A of the field; however, isolation was successful using m-OCP and conventional CT. Operation execution and production recovery took more time than planned because of the uncertainty concerning well integrity in the dual-string completion and lost circulation in the depleted reservoir, which affected the economic deliverability of the operation. The major challenges with Well B of the same type in the same field remain the same. Thus, as part of lessons learned from the previous intervention, diagnostic services were chosen for a real-time evaluation of the completion to review well integrity and accurately place the optimized treatment, thereby helping improve overall results in the most time-saving and lucrative manner.

The successful isolation of the water-producing zone/perforations in the southeast Kuwait field using m-OCP and CT-assisted real-time DTS to review well integrity can be considered a best practice for addressing similar challenges globally.
Be Dynamic! Job Planning for Coiled Tubing Conveyed Extended Reach Pulsation Tools
Authors: Newman Ken , Kelleher Patrick
Published: March 2020

In recent years there have been a significant number of coiled tubing (CT) failures during frac-plug drill-out operations. These failures occur most often when an axial vibration/pulsation extended reach tool (ERT) is included in the bottom hole assembly (BHA). There are significant efforts in the industry to first understand and then mitigate these failures. This paper examines the dynamic axial vibrations caused by these tools, and how these vibrations are amplified in the wellbore, possibly causing the material damage that later causes the failures. In some cases, these amplified vibrations have damaged surface equipment.
Foam Stability - Does Well Inclination Matter?
Authors: Govindu Abhishek , Ahmed Ramadan , Shah Subhash , Amani Mahmood
Published: March 2020

To minimize fluid loss and the associated formation damage, underbalanced coiled tubing (CT) is one of the preferred methods to perform cleanout operations and re-establish communication with an open completion interval. Because of their high viscosity and structure, stable foams are suitable cleanout fluid when underbalanced CT operations are applied. However, unstable foams do not possess high viscosity and as a result, they are poor in cleanout operations, especially in inclined wellbores. This study is aimed to investigate the effects of wellbore inclination on the stability of foams.

In this study, foam drainage experiments were carried out using a flow loop that has foam drainage measurement section and pipe viscometers. To verify proper foam generation and validate the accuracy of measurements, foam rheology was measured using pipe viscometers. Drainage experiments were performed with aqueous, polymer-based, and oil-based foams in concentric annulus and pipe under pressurized conditions. Tests were also conducted at an inclined orientation to examine the effect of wellbore inclination on the stability of foams. The foam bubble structure was examined and monitored in real-time using a microscopic camera to study bubble coarsening. The foam quality (i.e. gas volume fraction) was varied from 40 to 80%.

The drainage rate was slightly higher in the pipe section than in the annulus. More importantly, the drainage rate of foam in an inclined configuration was significantly higher than that observed in a vertical orientation. The inclination exacerbated foam drainage and instability substantially. The mechanisms of foam drainage are different in inclined configuration. In inclined wellbores, drainage occurs not only axially but also laterally. As a result, the drained liquid quickly reaches a wellbore wall before reaching the bottom of the hole. Then, a layer of liquid forms on the low-side of the wellbore. The liquid layer flows downward due to gravity and reaches the bottom of the hole without facing major hydraulic resistance of the foam network. This phenomenon enhances the drainage process considerably.

Although foam drainage experiments are reported in published literature, there is limited information on the effects of geometry and inclination on foam drainage and stability. The information provided in this article helps to account for the impact of inclination on foam stability to improve its CT cleanout performance in directional wells.
Lessons Learned After Velocity String Campaign Using Different CT Hanger System with Out Well Head Modifications
Authors: Marozzini Diego Alejandro , Arroyo Jorge Pablo , Alric Facundo , Raverta Mariano
Published: March 2020

The Aguada Pichana Gas field is located in the center of the prolific Neuquén Basin, in Argentina. It produces gas and condensate through monobore completions. Since 2006, an increase in liquid loading has become an issue in current wells conditions, resulting in the need of reducing production tubing size to enable stable gas production for continuous liquid removal. Following analysis, the appropriate solution resulted in running a velocity string (VS) as an effective means for liquid removal at current and future production conditions. The challenge was to find a hanger system, which would allow, without killing the well, to hang a 2.0-in[CSH1] CT VS. Additionally, the hanger should facilitate unloading the well by circulating nitrogen and restore the production rate without the need to recover the VS.

After a field trial, the first phase of the campaign has been completed with the introducion of a special designed fluted seal and retrievable CT VS hanger system (quantity: 20 jobs), and second phase of campaign (quantity: 60 jobs) with a low cost and locally manufactured reliable system. The paper describes the operational planning, different hanger systems, deployment methods and lessons learned after more than 80 jobs.
New High Temperature Coiled Tubing Drilling Bottom Hole Assembly Enables Slimhole Re-Entry Drilling in Challenging High Temperature Wells
Authors: Krueger Stefan , Schoenborn Kai
Published: March 2020

The following paper presents a new high temperature Coiled Tubing Drilling (CTD) Bottom Hole Assembly (BHA) with its technical improvements and adjustments needed, to operate beyond previous temperature limitations and in more challenging formations. It summarizes the field-test results and first achievements of the BHA in the increasing High Temperature (HT) re-entry drilling environment.

The introduced HT CTD BHA incorporates a new generation of electronics and adjusted technical solution to operate in this challenging environment. The developed designs address the increased temperature impact to the downhole electronics, the various integrated sensors and mechanical components like the oil hydraulic system of the BHA. Details on these technical improvements are provided in combination with an overview on the changing CTD market segment to higher temperature application. The results and performance of the new CTD BHA within the first deployments in the Middle East are presented, and details of the associated application are provided.
Case Study for Rig-Less Subsea Well Abandonment
Authors: Thom Finlay , Angell Paul , Greig Neil , Robertson Neil , Hogg Hamish
Published: March 2020

The initial proposal for abandoning a subsea field in the North Sea was to carry out the pre-abandonment work from the Light Well Intervention Vessel (LWIV) followed by the complete Plug and Abandon (P&A) operation conducted by a Mobile Offshore Drilling Unit (MODU). During the detailed design of the workscope, the four wells in the field were identified as through-tubing abandonment (TTA) candidates. To maximise the use of the LWIV and optimise the MODU sequence these TTA operations were planned to be executed from the LWIV. The TTA cement plug is installed by circulating cement down the production tubing and taking returns from the annulus to place the cement plug above the production packer and deep-set plug. An agitator tool is installed in the production tubing to improve the cement coverage in the annulus. As the LWIV does not have a permanently installed cementing system, a temporary system was fitted on the vessel which proved to be challenging given the deck limitations of the installation. Two of the four TTA candidate wells included a downhole gauge cable in the completion design across the zone that was required to be cemented. To ensure the long-term integrity of the TTA cement plug with the gauge cable, an expanding self-healing cement was utilised.
Competency of Level-4 Health Extension Workers to provide Long Acting Reversible Contraceptives: A task shifting initiative in Ethiopia
Authors: Teklu Alula M. , Yimam Hamid , Medhin Girmay , Tesfay Teklemichael G.
Published: March 2020

Background : The Ethiopian health system has been facing challenge to meet the growing desire for family planning service. Shortage of trained service providers at a primary care setting is one of the reasons for unmet need to access Long-Acting Reversible Contraceptives (LARCs). To investigate feasibility of task shifting of providing LARCs, community health extension workers (CHEWs) were trained in four Regions of Ethiopia on how to insert and remove contraceptive of implant and Intrauterine Contraceptive Device (IUCD). Therefore, this study is aimed at assessing the knowledge, attitude and skill of the trained health extension workers to provide LARC. Methods : A cross sectional study was employed from April to May 2017 in four feasibility study regions of Ethiopia, namely; Amhara, Oromia, Tigray, and Southern Nation, Nationalities and Peoples Region (SNNPR). Data were collected from 66 health extensions who give the service of 402 IUCD and 793 implants. The collected quantitative data were analyzed using statistical package for social science (SPSS) version 25.0 for window. Results : Nearly two-third (62.7%) of L4HEWs had good level of knowledge of counseling for LARC. Using anatomical model L4HEWs completely performed all steps for around 58.5% Implanon, 30.6% Jadelle and 22% IUCD insertions. Conclusions : With adequate training and supportive supervision, L4HEWs can provide high-quality implant insertions. The IUCD insertion and removal needs careful consideration. Despite the possibility of improving uptake of LARC services by training more L4HEWs, there is a need to improve the skill of IUCD insertion and removal before scale up the intended task sharing.
Long-term outcomes of uncemented or cemented arthroplasty revision following metal-on-metal total hip arthroplasty failure: A retrospective observational study with a mean follow-up of 7 years
Authors: Chen Wenli , Shuai Mao , Lin Jinluan , Chen Baomin , Zhao Mingdong , Zhang Xinchao , Yu Weiguang , Han Guowei
Published: March 2020

Background

A high rate of metal-on-metal total hip arthroplasty (MoM-THA) has been well-known. The aim of this study was to compare the long-term outcomes of patients who had undergone uncemented or cemented THA(UTHA or CTHA) following initial MoM-THA failure.

Methods

Data from 234 patients (234 hips) who were treated with UTHA or CTHA following initial MoM-THA failure during 2007 - 2018 were retrospectively compared. Follow-up occurred 3 months, 6 months, 1 year, 2 years, and then every 1 year after conversion. The mean follow-up was 84.15 months (67 - 101 months). The primary endpoint was the Harris Hip Scores (HHS); secondary endpoint was the incidence of major orthopaedic complications.

Results

The HHS demonstrated statistically greater differences in Group CTHA than in Group UTHA 12 months after conversion. From the 12th month after conversion to the final follow-up, CTHA yielded superior functional outcomes than UTHA. Between-group noteworthy differences were observed regarding the rates of re-revision, aseptic loosening, and periprosthetic fracture (10.3% for UTHA vs 2.5% for CTHA, p = 0.015; 16.3% for UTHA vs 5.9% for CTHA, p = 0.011; and 12.0% for UTHA vs 4.2% for CTHA, p = 0.045, respectively).

Conclusion

In the setting of revision following initial MoM-THA failure, we found definite evidence of the superiority of CTHA over UTHA in regard to improving functional outcomes and decreasing the incidence of major orthopaedic complications.
Single oocyte/embryo RNASeq data processing
Authors: SANKAR ADITYA , Johansen Jens Vilstrup , Borup Rehannah
Published: March 2020

This protocol details the step-by-step procedures followed to process the single oocyte/embryo mRNASeq and 2-cell embryo Total RNASeq data generated using the SMARTSeq2 technology in the associated publication. A separate section highlights processing of human MII oocytes.
Evaluation of the Failed Handoff Rate in Collaborative Wireless Networks
Authors: Giral Diego , Hernandez Cesar , Rodriguez-Colina Enrique
Published: March 2020

Cognitive radio is an essential technology to overcome fixed spectrum allocation problems and improve its use through dynamic spectrum access techniques. Spectral decision-making is a function of the cognitive cycle that aims to choose the best spectral alternative among a set of finite possibilities. An inadequate process of decision-making can significantly affect the network parameters. Therefore, it is important to determine the best strategy and if this decision making should be collaborative. The present research analyzes the performance of failed handoff rate according to the amount of information shared between secondary users. The aforementioned information corresponds to the spectral occupancy for the GSM frequency band, that is characterized by a set of users and five levels of collaboration, 10%, 20%, 50%, 80% and 100%, where each level represents the percentage of users are part of the training model implemented. The decision-making process is carried out by using two multi-criteria techniques: Feedback Fuzzy Analytical Hierarchical Process (FFAHP) and Simple Additive Weighting (SAW). Based on the obtained percentage ratios and the information shared, it is determined that for the given number of failed handoffs, the level of collaboration that leads to efficient results is between 20% and 50%.
Glycinin-induced porcine IPEC-J2 cell damage via the NF-κB/MAPK signaling pathway
Authors: Peng Chenglu , Sun Zhifeng , Wang Lei , Shu Yingshuang , He Mengchu , Ding Hongyan , Li Yu , Wang Xichun , Feng Shibin , Li Jinchun , Wu Jinjie
Published: March 2020

Background: Glycinin, a protein found in soybean, is a human and animal allergen. It been previously shown to damage the intestinal barrier. However, its mechanisms of action remain unclear. Therefore, in this study, the intestinal porcine epithelial cell line IPEC-J2 was used to study the effect of glycinin concentration on the intestinal epithelium and identify the related signaling pathways. Results: IPEC-J2 cells were divided into seven treatment groups and a control group; the cells were treated for 24 h with 1, 5, or 10 mg/mL glycinin or with 5 mg/mL glycinin after 30 min of pre-treatment with 1 μmol/L nuclear factor-kappa B (NF-κB) inhibitor (pyrrolidine dithiocarbamate), inducible nitric oxide synthase inhibitor (N-ω-nitro-l-arginine methyl ester), Jun N-terminal kinase (JNK) inhibitor (SP600125), or p38 inhibitor (SB202190). A series of molecular and biochemical experiments revealed that the levels of NF-κB, p38, and JNK, as well as their downstream proteins, increased after the treatment compared with those in the control group.
Associations of serum sodium levels with mortality in very elderly acute kidney injury patients
Authors: Li Qinglin , Pan Liang , Mao Zhi , Kang Hongjun , Zhou Feihu
Published: March 2020

Background: Patients suffering from acute kidney injury (AKI) have been associated with impaired sodium. However, studies on the association of dysnatremia with all-cause mortality risk in AKI patients are particularly lacking. We examined the relationship between different levels of serum sodium and mortality among very elderly patients with AKI. Methods: We retrospectively enrolled very elderly patients (≥ 75 years) from Chinese PLA General Hospital from 2007, to 2018. All-cause mortality was examined according to eight predefined sodium levels: <130.0 mmol/L, 130.0–134.9 mmol/L, 135.0–137.9 mmol/L, 138.0–141.9 mmol/L, 142.0–144.9 mmol/L, 145.0–147.9 mmol/L, 148.0–151.9 mmol/L, and ≥152.0 mmol/L. We estimated the risk of all-cause mortality using a multivariable adjusted Cox proportional hazard model, with a normal serum potassium level of 135.0–137.9 mmol/L as a reference. Results: In total, 744 geriatric patients were suitable for the final evaluation. Among them, 260 (34.9%) died within 90 days; during the 1-year follow-up, 5 patients were lost to follow-up, and 383 (51.8%) died. After 90 days, the mortality rates in the eight strata were 36.1, 27.8, 19.6, 24.4, 30.7, 48.6, 52.8, and 57.7%, respectively. In the multivariable adjusted analysis, patients with sodium levels <130.0 mmol/L [hazard ratio (HR): 2.247; 95% confidence interval (CI): 1.117–4.521], from 142.0 to 144.9 mmol/L (HR: 1.964; 95% CI: 1.100–3.508), from 145.0 to 147.9 mmol/L (HR: 2.942; 95% CI: 1.693–5.114), from 148.0 to 151.9 mmol/L (HR: 3.455; 95% CI: 2.009–5.944), and ≥152.0 mmol/L (HR: 3.587; 95% CI: 2.151–5.983) had an increased risk of all-cause mortality. After 1 year, the mortality rates in the eight strata were 58.3, 47.8, 33.7, 38.9, 45.5, 64.3, 69.4, and 78.4%, respectively. In the multivariable adjusted analysis, patients with sodium levels <130.0 mmol/L (HR: 1.944; 95% CI: 1.125–3.360), from 142.0 to 144.9 mmol/L (HR: 1.681; 95% CI: 1.062–2.660), from 145.0 to 147.9 mmol/L (HR: 2.631; 95% CI: 1.683–4.112), from 148.0 to 151.9 mmol/L (HR: 2.411; 95% CI: 1.552–3.744), and ≥152.0 mmol/L (HR: 3.037; 95% CI: 2.021–4.563) had an increased risk of all-cause mortality. Conclusion: Sodium levels outside the interval of 130.0–141.9 mmol/L were associated with increased risks of 90-day mortality and 1-year mortality in very elderly AKI patients.
Asymmetric Price Transmission of World Prices to Kenyan Tea Market
Authors: Ngeno Vincent
Published: March 2020

The use of asymmetrical threshold cointegration test is adopted in this study to investigate whether any significant relationship or asymmetric adjustment exists in transmission of prices between the world tea market and domestic prices in Kenya. The empirical results obtained are as follows. First, we verify a close link between the Kenya’s tea price and its international counterparts under the current period of market liberalization. Second, empirical results demonstrate that in both long run and short run, the price transmission between world tea market and Kenyan domestic market are nonlinear and asymmetric, suggesting long run and short run dynamic inefficiencies and presence of transaction costs.JEL classification: C32, Q13, Q17
Adiponectin inhibits palmitic acid-induced NLRP3 inflammasome activation in hepatocytes through AMPK-JNK/ErK1/2-NFκB/ROS signaling pathways
Authors: Dong Zhixia , Zhuang Qian , Ye Xin , Ning Min , Wu Shan , Lu Lungen , Wan xinjian
Published: March 2020

Background Adiponectin, an adipose-derived adipokine, possesses a hepatoprotective role in various liver disorders. Inflammasome activation has been recognized to play a major role during the progression of non-alcoholic fatty liver diseases (NAFLD). However, the effect of adiponectin on NLRP3 inflammasome activation in liver and the exact mechanism remains largely unclear. Here, we assessed the effect of adiponectin on NLRP3 inflammasome activation and its potential molecular mechanisms through both in vivo and in vitro experiments. Methods Male adiponectin-knockout (adiponectin-KO) mice and C57BL/6 (wild-type) mice were fed a high-fat-diet (HFD) for 12 weeks as an in vivo model of non-alcoholic steatohepatitis (NASH). Serum biochemical markers, liver histology and inflammasome-related gene and protein expression were determined. In addition, the hepatocytes isolated from SD rats were exposed to palmitic acid(PA) in the absence or presence of adiponectin and/or AMPK inhibitor. The activation of NLRP3 inflammasome was assessed by mRNA and protein expression. Furthermore, ROS production and related signaling pathways were also evaluated. Results In the in vivo experiments, we found that adiponectin deficiency mice fed with HFD presented excessive hepatic steatosis with increased NLRP3 inflammasome activation compared to wild-type mice. Moreover, the expression levels of NLRP3 inflammasome activation pathway molecules (NFκB and ROS) were upregulated, while the phosphorylation levels of AMPK, JNK and Erk1/2 were downregulated in adiponectin-knockout mice compared with wild-type mice. In the in vitro study, PA significantly promoted NLRP3 inflammasome activation in hepatocytes. Additionally, PA increased lipid droplet deposition, NF-kB signaling and ROS production, while adiponectin could abolish PA-mediated NLRP3 inflammasome activation and decrease ROS production, which was reversed by AMPK inhibitor (compound C). The results indicated that the inhibitory effect of adiponectin on PA-mediated NLRP3 inflammasome activation was regulated by AMPK-JNK/ErK1/2-NFκB/ROS signaling pathway. Conclusion Adiponectin inhibited PA-mediated NLRP3 inflammasome activation in hepatocytes. Adiponectin analogs or AMPK agonists could serve as a potential novel agent for preventing or delaying the progression of NASH and NAFLD.
Development of Drug Resistance among Comorbid and Non-Comorbid HIV-Negative Relapsed Cases of Tuberculosis in Lahore, Pakistan
Authors: Salam Arslan Ahmed , Ikram Aamer , Fatima Maha , Awan Najma Javed
Published: March 2020

Background: Mycobacterium tuberculosis sometimes become resistant to the drugs that are used to treat it. Drug resistant TB (DR-TB) is spread in the same way as drug susceptible TB. DR-TB is a public health crisis. This study aims to find the pattern of drug resistance and correlations between drug resistance and comorbid/non-comorbid conditions in patients with a relapse of TB. Methodology: A cross-sectional study was conducted among 200 HIV-negative relapsed TB patients from 2016-2017 in Mayo Hospital Lahore. The patients’ sputum samples were tested by Ziehl-Neelsen staining to observe acid-fast bacilli. The demographics and medical history of patients was recorded, who were positive for AFB in their sputum samples. Molecular procedure of Gene-Xpert assay was conducted to detect the presence of MTB and rifampicin resistance in the samples. Whereas, the drug susceptibility test (DST) was conducted on the LJ culture medium containing drugs.Results: Out of 200 relapsed TB cases; 97 were comorbid, 99 were non-comorbid. The most prevalent comorbidities were hypertension (42 cases- 43.3%), diabetes (45 cases-46.4%) and hepatitis B (14 cases-14.4%). Among 97 comorbid patients; 37 worked as laborers, 43 earned less than 20,000 PKR and 23 were found to have a history of imprisonment. Whereas in non-comorbid patients; 20 worked as laborers, 28 earned less than 20,000 PKR and 12 had been in prison before. The Gene-Xpert test detected rifampicin resistance (RR) in 20 comorbid (20.6%) and 33 non-comorbid (33.3%) patients. Whereas, the drug susceptibility test (DST) showed that 22 comorbid (22.7%) and 33 non-comorbid (33.3%) patients were RR. A contrast was seen in the results of Gene-Xpert and DST; Gene-Xpert detected 3 cases of RR-negative whereas the same 3 cases were found to be RR-positive on DST. Only 1 case was RR-positive on Gene-Xpert but RR-negative on DST. 17 comorbid patients (17.5%) were diagnosed with MDR-TB and 5 (5.2%) with XDR-TB. Whereas, in non-comorbid patients, there were 26 cases of MDR-TB (26.3%) and 5 cases of XDR-TB (5.1%). There were 2 patients (2.1%) resistant to all drugs.Conclusion: There was a deviation in the results of molecular Gene-Xpert assay compared to the conventional culture methods. Drug resistance was relatively higher in non-comorbid patients than comorbid patients, however, the difference between the two is not very significant.