bluuebunny/crossref_metadata_2025 huggingface dataset:
IKHLAS: A Spiritual Resource for Indonesian Muslim Wives in Accepting Their Husband's HIV-Positive Status
Authors: Agnes Yeni L.N. , Songwathana Praneed , Perngmark Pajongsil
Published: August 2022

The religious and cultural values of the Muslim community shaped their coping mechanisms in facing various problems. Indonesian Muslim wives leaned toward both religious and cultural philosophies as resources in maintaining their marriage life. This research aimed to understand the spiritual perspective among Muslim wives in accepting their husband's HIV-positive status. This study used a qualitative study with 15 wives who had a husband with HIV-positive. The interview was run 2-4 times for each participant, and around spent 50-90 minutes for each interview. Data were analyzed simultaneously using a content analysis method. Three themes were articulated, including:1) the meaning of being a Muslim wife to a husband with an HIV-positive, 2) Life experiences after knowing a husband’s HIV-positive status, and 3) Philosophy of life in accepting a husband’s HIV-positive status. Muslim wives' experiences often depend on gender power relations, cultural and religious values, and family roles. The result of the study could be used in developing specific strategies with a gender approach to reduce the transmission of HIV/AIDS among Muslim wives.
Pengaruh Latihan Pliometrik Medicine Ball dan Latihan Dumbbell Terhadap Power Otot Lengan dalam Olahraga Bola Basket
Authors: Davieri Gabriel Ramadhan Emileano , Mulyana Dadan , Rismayadi Alen , Pitriani Pipit
Published: August 2022

Power otot lengan dalam cabang olahraga bola basket merupakan komponen kondisi fisik yang sangat penting, sesuai dengan karakteristik permainan bola basket dimana banyak gerakan yang dilakukan secara tiba-tiba dengan cepat dan kuat. Penelitian ini bertujuan untuk mengetahui pengaruh latihan pliometrik medicine ball dan latihan dumbbell terhadap power otot lengan dalam olahraga bola basket. Metode yang digunakan dalam penelitian ini adalah metode eksperimen dengan menggunakan desain two group pre-test post-test design. Penelitian ini dilakukan pada tim basket putra UPI, dengan metode pengambilan sampel purposive sampling sebanyak 12 orang yang dibagi menjadi 2 kelompok yaitu kelompok dengan latihan pliometrik medicine ball (kelompok A) dan latihan dumbbell (kelompok B). Tes wall bound dilakukan untuk mengetahui kemampuan power otot lengan pada pre-test dan post-test. Latihan pliometrik medicine ball dan latihan dumbbell memiliki pengaruh yang signifikan terhadap power otot lengan dalam olahraga bola basket. Namun, metode latihan pliometrik medicine ball menunjukkan hasil yang lebih baik dalam meningkatkan kemampuan power otot lengan. Kesimpulan dari penelitian ini, latihan pliometrik medicine ball dan latihan dumbbell dapat digunakan untuk meningkatkan kemampuan power otot lengan, tapi latihan pliometrik medicine ball memiliki pengaruh yang lebih signifikan
Pandemi Covid-19: Dampaknya Terhadap Mental dan Kebugaran Jasmani Atlet Dayung
Authors: Rahman Ramdhani , Agustan Boby
Published: August 2022

Penelitian ini dilatar belakangi oleh meningkatnya kasus COVID-19 yang mengakibatkan dibatasinya aktivitas di luar rumah sehingga terganggunya rutinitas yang biasa dilakukan atlet sehari-hari. Penelitian ini bertujuan untuk mengetaui dampak pandemi COVID-19 terhadap mental dan kebugaran jasmani atlet dayung.  Metode yang digunakan adalah metode survey research dengan jumlah populasi sebanyak 32 orang atlet dayung Kabupaten Kuningan. Pengambilan sampel mengguakan teknik purposive sampling dengan kriteria atlet yang mengikuti PORPROV JAWA BARAT 2022 sebanyak 10 orang. Dalam penelitian ini instrumen yang digunakan  adalah mental health inventory (MHI) untuk mengukur mental, Cooper Test untuk mengukur kebugaran jasmani, impact of Event Scale-Revised (IES-R) untuk mengukur dampak COVID-19. . Berdasarkan data yang diperoleh dapat disimpulkan data regresi anova dengan nilai signifikansi 0,01 < α = 0,05 sehingga Hipotesis dapat diterima. Dimana hasilnya menyatakan bahwat terdapat dampak pandemi COVID-19 terhadap kebugaran jasmani atlet dayung, selanjutnya uji data regresi anova telah dilakukan dengan nilai signifikansi sebesar 0,04 < α = 0,05 sehingga H1 dapat diterima. Dimana hasilnya menyatakan bahwat terdapat dampak pandemi COVID-19 terhadap mental atlet dayung
Identifikasi Body Composition (Healthy Fitness Zone) dan Resiko Cedera pada Pemain Bola Basket SMA
Authors: Listiandi Arfin Deri , Budi Didik Rilastiyo , Hidayat Rohman , Febriani Ayu Rizky , Purnamasari Ajeng Dian , Heza Fuad Noor , Bakhri Rafdlal Saeful
Published: August 2022

Penelitian ini bertujuan untuk mengidentifikasi Body Composition yang terdiri dari Body Mass Index dan Body Fat Percentage menggunakan norma Healthy Fitness Zone dari fitnessgram dengan resiko cedera pada pemain bola basket SMA. Penelitian ini menggunakan metode penelitian deskriptif korelasional, sampel penelitian yaitu Siswa SMAN 4 dan SMAN 5 Purwokerto yang mengikuti ekstrakurikuler yang dipilih menggunakan purposive sampling sejumlah 20 Putra dan 10 Putri. Instrumen penelitian yang digunakan yaitu pengukuran body composition menggunakan Bioelectrical Impedance Analysis (BIA) dan tes Functional Movement Screening (FMS) untuk resiko cedera. Hasil penelitian menunjukan pengukuran Body Mass Index siswa yang mengikut ekstrakurikuler bola basket berada pada kriteria Healthy Fitness Zone sebesar 77%. Body Fat Percentage siswa yang mengikuti ekstrakurikuler bola basket sebagian besar berada dalam kriteria Healthy Fitness Zone sebanyak 23 siswa (77%) dan nilai korelasi ganda (R) = 0,674 dan sig. = 0,000 < 0,05 maka hubungan signifikan, atau dapat dinyatakan bahwa terdapat hubungan yang signifikan Body Mass Index dan Body Fat Percentage dengan Functional Movement Screening. Hasil uji regresi menunjukan nilai R square = 0,454 dapat diartikan besarnya hubungan Body Mass Index dan Body Fat Percentage dengan Functional Movement Screening sebesar 45,4% sedangkan sisanya 64,6% dipegaruhi oleh faktor lain.
Peningkatan Range of Movement (ROM) Atlet Sepakbola Pasca Cedera Ankle dengan Terapi Massage dan Latihan Pembebanan
Authors: Utomo Andy Widhiya Bayu , Wibowo Toyo , Wahyudi Arief Nur
Published: August 2022

Persinga Ngawi merupakan klub sepakbola Liga 3 yang mempunyai jadwal pertandingan cukup padat sehingga menuntut adanya peningkatan aktivitas fisik atlet. Latihan, pertandingan dan pasca pertandingan merupakan tahapan yang harus dijalani oleh atlet sepakbola yang sedikit banyak menimbulkan risiko cedera, salah satunya cedera ankle. Terapi massage dan latihan pembebanan merupakan salah satu cara yang dapat digunakan untuk menurunkan cedera ankle. Tujuan penelitian ini adalah untuk menganalisis peningkatan Range of Movement (ROM) atlet sepakbola Persinga pasca cedera ankle dengan terapi massage dan latihan pembebanan. Jenis penelitian ini yaitu pre-experimental design (one-group pretest-posttest design). Penelitian ini dilaksanakan bulan Januari-Februari 2022. Populasi penelitian ini yaitu atlet sepak bola Persinga U-17 Kabupaten Ngawi sebanyak 24 atlet. Penelitian ini menggunakan teknik purposive sampling dengan kriteria yaitu atlet yang mengalami pasca cedera ankle, sehingga diperoleh sampel sebanyak 15 atlet. Tahapan penelitian yaitu melakukan pre-test dan post-test dengan mengukur Range of Movement (ROM) pada sendi ankle pada terapi massage dan latihan pembebanan dengan theraband. Hasil pengukuran Range of Movement (ROM) atlet sepakbola Persinga U-17 pada terapi massage dan latihan pembebanan menunjukkan adanya peningkatan ROM sebesar 35% pada gerakan fleksi dan 30% pada gerakan ekstensi. Hasil uji Wilcoxon Signed Rank Test menunjukkan nilai sig 0.043 (p ≤0.05) sehingga terdapat perbedaan hasil pre-test dan post-test setelah diberikan terapi massage dan latihan pembebanan. Hal ini menunjukkan bahwa terapi massage dan latihan pembebanan dapat digunakan untuk menangani (mengurangi) cedera ankle atlet sepakbola Persinga U-17 Kabupaten Ngawi
The impact of Covid-19 on the banking industry efficiency: Comparison between Indonesia and Malaysian banks
Authors: Riani Ririn , Ikhwan Ihsanul
Published: August 2022

Purpose − This study aims to measure and compare the efficiency of Islamic and conventional banks in Indonesia and Malaysia, from 2015 to 2020.Methodology − Data Envelopment Analysis (DEA) was employed as a research method for measuring efficiency. The DEA results are also used to identify input or output variables that must be improved if the Decision-Making Unit (DMU) needs to improve efficiency in form of potential improvement.Findings − This study shows that Covid-19 had an impact on decreasing the efficiency level of Indonesian and Malaysian Banks. This study also shows that Indonesian Banks are relatively efficient compared to Malaysian Banks. Nevertheless, Islamic bank is more affected by Covid-19 compared to conventional. In addition, the most important variable performance to be improved by banks during the Covid-19 pandemic is total financing.Implication − It can be used as a guideline for both nations to improve their shortcomings in each type of bank and to strengthen the banking system during economic downturns in order to speed up the recovery process.Originality − This is the initial study to examine the banking efficiency of Indonesia and Malaysia during the covid pandemic-induced economic crisis. As a result, it is expected to capture the impact of the covid-19 epidemic on banking efficiency.
Cerebral Activity-Based Quantitative Evaluation for Attention Levels
Authors: Niiyama Saki ,   Graduate School of Engineering, Tokyo University of Agriculture and Technology 2-24-16 Naka-cho, Koganei-shi, Tokyo 184-8588, Japan, Yano Shiro , Kondo Toshiyuki
Published: August 2022

Regional cerebral activity related to attention may be more useful as an evaluation index for attention levels than conventional task performance score-based methods. We therefore researched whether the quantitative evaluation of attention using regional cerebral activity, measured using near-infrared spectroscopy (NIRS), was appropriate. NIRS signals during the continuous performance test (CPT), which is well known as an attention test, were measured and analyzed. We confirmed activities in the regions that may be associated with the right-side anterior cingulate cortex (ACC), and on the estimated dorsolateral prefrontal cortex (DLPFC). Furthermore, there was a high correlation between activity on the DLPFC related to executive function and the performance score. Our study using cerebral activity could not quantify attention, but it opened the possibility of quantifying levels of executive function.
Распространение вариантов вируса SARS-COV-2, вызывающих озабоченность (VOC) на основе количества их геномов, депонированных в базу данных GISAID за неделю с 13.08.2022 г. по 19.08.2022 г.
Authors: Дмитриева Людмила , Краснов Ярослав , Чумачкова Елена , Осина Наталья , Зимирова Анастасия , Иванова Александра , Карнаухов Игорь , Караваева Татьяна , Щербакова Светлана , Кутырев Владимир
Published: August 2022

В обзоре представлена информация по циркулирующим в настоящее время вариантам вируса SARS-COV-2 вызывающих озабоченность (VOC), геномные последовательности которых размещены в международной базе данных GISAID с 13.08.2022 г. по 19.08.2022 г.
Inconsistent Reporting of Preauthorization Medical Criteria for Osteochondral Allograft Transplantation Surgery
Authors: Tabbaa Suzanne M. , Bugbee William D. , Provencher Matthew , Farr Jack , Crawford Dennis C. ,   on behalf of the Metrics of Osteochondral Allografts (MOCA) Committee
Published: August 2022

Background:

Although osteochondral allograft (OCA) transplantation has been a standard treatment for patients with osteochondral lesions, there is a disagreement in commercial payers’ medical criteria regarding the definition of medical suitability and thus authorization for OCA transplantation. The primary goal of this study was to understand where consensus between a committee of experienced cartilage restoration surgeon scientists and payer policies existed and where there was significant disagreement.

Methods:

U.S. private payers were identified by reviewing health insurance market research literature. Medical criteria were then obtained from publicly available payer medical polices. A literature review was conducted to identify supporting evidence for consensus statements based on private payer medical criteria. The MOCA (Metrics of Osteochondral Allograft) Committee, 30 experienced surgeons and subject-matter experts in OCA transplantation, used a Likert scale of 1 (strongly disagree) to 5 (strongly agree) to rank each statement. The extent of agreement and disagreement among participants was measured for each statement. Consensus was defined as agreement or disagreement of >75%.

Results:

Fifty-seven statements regarding relevant medical criteria for OCA transplantation were included in the survey. All 30 MOCA Committee members completed the survey (100% response rate). Over half of the statements (52.6%) did not reach consensus. Of the remaining 27 statements that reached consensus, respondents agreed or strongly agreed with 16 statements, and disagreed or strongly disagreed with 11 statements. Inconsistent voting was observed for statements related to osteoarthritis, inflammation, and degenerative changes.

Conclusions:

Commercial payers are not consistent in the medical criteria used to define patient eligibility for authorization of OCA transplantation. In contrast, an expert panel of cartilage surgeons reached a consensus that OCA transplantation was clearly suitable for a variety of specific indications. This study demonstrates the need to standardize medical criteria for cartilage restoration based on the most current literature, as well as in conjunction with experienced cartilage restoration experts.

Level of Evidence:

Therapeutic Level V. See Instructions for Authors for a complete description of levels of evidence.
The Efficacy of Bone Wax in Reduction of Perioperative Blood Loss in Total Hip Arthroplasty via Direct Anterior Approach
Authors: Mortazavi Seyed Mohammad Javad , Razzaghof Mohammadreza , Ghadimi Ehsan , Seyedtabaei Seyed Mohammad Milad , Vahedian Ardakani Mohammad , Moharrami Alireza
Published: August 2022

Background:

Perioperative blood management in total hip arthroplasty (THA) has become a prime focus of research. Given the morbidity, delayed recovery, and prolonged hospital stay associated with postoperative anemia, various measures have been proposed to reduce perioperative blood loss (PBL). In this trial, we studied the efficacy of bone wax application on the distal cut surface of the femoral neck in reducing PBL during THA through the direct anterior approach.

Methods:

In a randomized controlled clinical trial, 152 patients underwent THA through the direct anterior approach with use of bone wax (n = 75) or without bone wax (control) (n = 77). The study was triple-blinded. The primary outcomes were apparent PBL (blood in sponges and suction canister) and total PBL on postoperative days (PODs) 3 and 5 (as calculated with the Good and Nadler methods). Transfusion and complications were the secondary outcomes.

Results:

No significant difference was found between the 2 groups in terms of age, sex, body mass index, American Society of Anesthesiologists score, etiology, preoperative hematologic/coagulation profile, anesthesia, intraoperative mean arterial pressure, or operative time. Apparent PBL, total PBL on POD3, and total PBL, in milliliters, on POD5 were significantly lower in the wax group, with median values of 200 (interquartile range [IQR]: 115 to 310) versus 370 (IQR: 195 to 513.7), 505.2 (IQR: 409.2 to 637.6) versus 747 (IQR: 494.6 to 955.4), and 536.7 (IQR: 430.9 to 689.3) versus 767.8 (IQR: 537.8 to 1,021.9) in the wax and control groups, respectively (p < 0.001). No significant differences in the rates of transfusion and complications were found.

Conclusions:

Bone wax on the cut surface of femoral neck can significantly reduce PBL during THA through the direct anterior approach. Bone wax is accessible and inexpensive and can be considered a routine part of the surgical technique in THA through the direct anterior approach. This intervention has no impact on complication or transfusion rates.

Level of Evidence:

Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.
Etik Liderlik ve Whistleblowing (Erdemli Raporlama): Yükseköğretimde Bir Araştırma
Authors: ALTINTAŞ Mustafa , ÖZATA Musa , BOZBAYIR Oğuzhan
Published: August 2022

Liderlik geçmişten günümüze kadar kurum ve kuruluşların vazgeçilmez bir unsuru olarak karşımıza çıkmaktadır. Liderlik tarzları ise sürekli değişerek yenileşmeye devam etmektedir. Whistleblowing kavramı ise kuruluşların, toplumların faydasına olan ve yanlışların ortaya çıkarılarak bu durumların düzeltilmesini ele alan bir yaklaşımdır. Bu çalışmanın amacı etik liderlik ile whistleblowing kavramı arasındaki ilişkiyi belirlemektir. Tanımlayıcı nitelikte olan bu çalışmada nicel araştırma deseni kullanılmıştır. 539 akademisyenin katılımıyla gerçekleşen çalışmada toplanan veriler istatistiki analizlere tabi tutulmuştur. Ölçeklerin geçerliliği için açımlayıcı faktör analizi, güvenirlik analizi, bağımsız gruplar arası t testleri, tek yönlü varyans analizleri, korelasyon analizi ve regresyon analizi yapılmıştır. Yapılan korelasyon analizi sonucunda etik liderlik ile whistleblowing niyetinin içsel ve dışsal alt boyutları arasında anlamlı ilişkilerin olduğu görülmüştür. Yapılan regresyon analizine göre etik liderlik whistleblowing davranışını pozitif yönde etkilemektedir. Ayrıca etik liderlik davranışlarının artmasının dışsal whistleblowing davranışını azaltacağı sonucuna ulaşılmıştır. Ortaya çıkan bu sonucun etik liderlik davranışlarının whistleblowing niyetini açığa çıkarmayı sağladığı söylenebilir. İlgili sonuçlar neticesinde alan yazına katkı sağlamaya çalışılmıştır.
Technical assessment of the Old, Mississippi, Atchafalaya, and Red (OMAR) Rivers : HEC-RAS model
Authors: Fertitta David , Agnew Maxwell , Ramirez David
Published: August 2022

Upstream of the confluence of the Red River, Atchafalaya River, and ORCC Outflow Channel are vast low-lying flat areas on both sides of the Lower Red River. During times of high water on the Lower Red—whether from upstream water in the Red or from the ORCC Outflow Channel—enormous amounts of water flow over the natural riverbanks and flood this land. The loss of this water from the river into storage affects the operation of the ORCC, which in turn affects the stages and flows down the Atchafalaya and Mississippi Rivers. An improved understanding of this area and how water is stored during flood events is required to inform ORCC water management operations. Hydraulic analyses provide a basis to assess the changes in water levels, current directions and velocities, and flow rates for the assessment area. The hydraulic model HEC-RAS is used to expand on existing models of the area and to help overcome gaps in data. Understanding the processes of how water leaves the Red River channel, the volume and timing of the water moving into storage, and when the storage area begins to drain, will greatly inform the water managers and operators of the ORCC.
Technical assessment of the Old, Mississippi, Atchafalaya, and Red (OMAR) Rivers : HEC-RAS BSTEM analysis of the Atchafalaya River
Authors: Harris Kathleen , Dahl Travis
Published: August 2022

This report documents the bank erosion modeling performed under Task 6 (HEC-RAS Sediment Modeling) of the Old, Mississippi, Atchafalaya, and Red (OMAR) Rivers System Technical Assessment. The objectives of the bank erosion modeling effort were to compare the relative impact various flow scenarios might have on bank retreat on a stretch of the Atchafalaya River between Simmesport, LA, and the Whiskey Bay Pilot Channel. The effort included compilation of field and soil boring data, selection of bank retreat sites, creation of representative soil profiles for the reach, calibration of soil parameters to measured retreat rates, and modeling bank retreat and volume of material eroded under various flow scenarios. This modeling effort was intended for scenario comparison and should not be used as a prediction of exact rates of bank erosion. The study found that varying the amount of flow entering the Atchafalaya River from the Mississippi River could increase dramatically or significantly reduce the extent of bank erosion, relative to the current management scenario.
Reconstruction of Tectonic Stresses by Different Methods of Jointing Analysis (as the Example of the Morskoi Fault Zone in Cisbaikalia)
Authors: Burzunova Yu.P.
Published: August 2022

—Complex analysis of jointing in the Morskoi fault zone rocks (Cisbaikalia) has been carried out to compare two principally different methods of tectonophysical reconstruction of paleostress tectonic field, by geologic-structural data. A new approach to the paragenetic analysis of statistic measurements for ‘mute’ joints has been used; this approach makes it possible to reconstruct the stress state in the local rock exposure and to understand whether it belongs to the fault zone of a certain morphogenetic type and orientation. The second approach to reconstruct the stress filed is the Angelier–Delvaux kinematic analysis, which allows us to calculate the stress tensor and determine the stress regime, based on the analysis of strike-slip vectors on joints. Using the two methods we obtained the stress state solutions of local and regional levels for the study area. The paragenetic analysis gave twice as many local solutions for the same number of observation points. This is due to different environments of the formation of jointing sets and slickenlines in time (stages of fault zone evolution) and space (closeness to the fault plane). Most of the local solutions of the kinematic analysis coincide with the identical solutions of the paragenetic method on the stress state of the first or second orders. We obtained by an order of magnitude more ‘new’ (not repeated in the other method) paragenetic solutions than kinematic ones. At the next hierarchic level, the paragenetic analysis made it possible to reconstruct the stress field and fault zones of a higher rank. The results of both methods involve several stages of tectonic evolution of the rock massif. The identical regional stress fields reconstructed by different methods seem to belong to one stage. The studied fragment of the Morskoi fault, according to both methods, was activated in the three most intensively pronounced settings: compression, left-lateral strike-slip, and extension. Strike-slip stresses are concentrated closer to the fault plane. Moreover, we also revealed submeridional extension and NW compression. The results of the stress field reconstruction using the two methods are compatible and, in general, successfully complement and justify each other; however, the paragenetic method gives more numerous and variable solutions, resulting in the transition to the regional level and construction of the map for the study area fault zones. Complex application of both methods is recommended.
The Isotopic Age and Correlation of Carbonate Rocks of the Ara-Oshei Formation (Tunka Ridge, East Sayan)
Authors: Sitkina D.R. , Kuznetsov A.B. , Konstantinova G.V. , Turchenko T.L.
Published: August 2022

—We present results of Pb–Pb geochronology and Sr- and C- chemostratigraphic study of limestones and dolomites of the Ara-Oshei Formation of the Tunka ridge in East Sayan. The δ13C value of the limestones varies from –0.6 to 2.3‰ PDB, the 87Sr/86Sr ratio is within 0.70851–0.70864, and the Pb–Pb age is 521 ± 21 Ma (MSWD = 0.9). The δ13C value of the dolomites varies from –3.9 to 0.5‰ PDB, the 87Sr/86Sr ratio is 0.70844–0.70882, and the Pb–Pb age is 417 ± 8 Ma (MSWD = 2.5). The U–Pb isotope system of the dolomites was disturbed during the geologic evolution of the region, which led to the rejuvenation of their Pb–Pb age in the Early Devonian. The obtained Sr-chemostratigraphic and Pb–Pb data show that the limestones of the Ara-Oshei Formation accumulated in the early Cambrian. This provides a reliable proof that the limestones are part of the Vendian–Cambrian sedimentary cover of the Tuva–Mongolian massif.
Magnetotelluric Sounding in the Arctic Using a Drifting Station on an Ice Floe (Numerical Experiment)
Authors: Plotkin V.V. , Potapov V.V.
Published: August 2022

—The magnetotelluric sounding (MTS) method implemented on drifting ice floes in the Arctic is suitable for detection of 3D inhomogeneities in crustal conductivity while recording the transverse magnetic (TM) mode potential of the electromagnetic field. Highconductivity layers of seawater and sediments shield the underlying 3D inhomogeneity. Their presence virtually does not affect changes in the standard responses of the medium used in MTS but is quite noticeable in the characteristics of the TM mode. To register them, one can use a circular electric dipole (CED) located at the surface of an ice floe. During the drift, the electric field can be measured on the ice floe using electrodes in seawater. We propose to lower the magnetic sensors beneath the ice, in seawater, because ice deformations interfere with the magnetic-field component measurements. The coordinates of the observation station during MT soundings on the ice floe in the Arctic (similarly to earlier observations at the North Pole stations) can change significantly. To take into account the effect of horizontal movements of the drifting station, we propose to complement all the recorded time series with the coordinates of measurement points. We have developed a technique for processing such data to take into account nonplane-wave effects, which can occur in the Arctic because of the proximity of ionospheric current jets. We carry out the synchronization of all observations in the investigated area, using a model of spatial and temporal field variations and data accumulation. To test our approach, we use the synthetic experimental data for the model that considers the existence of seawater, sediment, resistive crust, crustal object, and underlying mantle. We determine the crustal 3D object parameters with account of the TM-mode potential distributions at the seawater surface restored from the synthetic experimental data obtained at the drifting station during the drift. We use the Nelder–Mead method for optimization of the object characteristics. The parameters of the object become highly similar to their test values if the trajectory of the drifting station passes through an object, covering it most fully.
Jet Lift Bridges Transition Gaps Between Various Forms of Artificial Lift in Horizontal Well Lifecycle
Authors: Massey John Lucas , Monzon Mauricio
Published: August 2022

This paper aims to share insights from a case history of jet lift applications in the Permian Yeso play. Apache Corporation has been actively drilling horizontally and multistage fracturing the Yeso formation in Eddy County, N.M., targeting dolostone/limestone/sandstone reservoirs interbedded with shale and anhydrite. The Yeso yields oil and liquids-rich gas at depths of 5,000-6,000 feet.

Apache's initial strategy was to commence post-flowback production from fractured wells with electrical submersible pumps and then transition to rod lift as rates declined over time. However, as the wells approached the transition window between ESPs and rod pumps, high sand content, wellbore deviation and gas-to-liquids ratios caused frequent downtime for both types of lift, negatively impacting well performance.

These conditions caused Apache to experiment with other forms of lift to seek a solution in horizontal wells in the transitionary window. This paper focuses on the trial and success of using concentric jet pumps in place of ESP and rod lift systems. Not all horizontal wells will be ideal candidates for this form of lift. This is especially true when ESP or rod lift can lift the well without issue or with limited downtime due to efficiency differences. However, jet lift is an underutilized form of lift that can produce wells from early life, through the steep horizontal decline, and into the late life steady state decline. This paper aims to show the versatility, under the right circumstances, inherent to downhole jet pumps with an example of a successful installation.
Liquids Level Calculation in Loaded Gas Wells from Surface Data Using Combined Analytical Modeling of Gaseous Static Liquids Gradient: Part 2
Authors: Nagoo Anand S. , Harms Larry K. , Hearn William J.
Published: August 2022

As the second part of this series, we apply our much improved understanding of gas flow through static recirculating liquid columns and analytical countercurrent multiphase flow modeling to both conventional and unconventional horizontal gas well liquids loading and a deep dive of the process of wellbore liquids flow reversal post-loading.

This part of our work focuses on a step change in understanding the aspect of multiphase flow that is most pertinent to artificial lift - countercurrent liquids loading and gas flow through liquid columns. It is shown that traditional concurrent flow principles and flow pattern maps used in prior commonly used flowing bottom hole pressure correlations do not apply and cannot explain the changing dual pressure gradient profiles in loaded gas wells as a result of flow reversal. Therefore, this work lays the foundation for a change in conversation and focus among the artificial lift community towards countercurrent and static liquid column multiphase flow behaviors prevalent in all liquids-producing gas wells.

We show and field-validate a new computational ability to perform multiphase countercurrent liquids loading calculations that dynamically loads a gas well tubing/casing and the calculations of total pressure gradient that varies with the increasing gas holdup along the static liquid columns of these wells. Additionally, we analyze the process of countercurrent flow and put forward a redefinition of onset of liquids flow reversal in the proper context of prior studies in this field. Our results are used to simulate the liquid levels in loaded gas wells from only basic surface field data. This represents an advance towards low-cost, low-carbon gas well production optimization and the opportunity of simulation-based real-time downhole diagnostics to determine digital liquid levels and reliably accurate FBHP in loaded gas wells without the high-carbon costs of wellsite visits and equipment runs. In terms of reliable digital twin applications for gas wells producing liquids, our new method can be performed in an autonomous way on a wellhead - a sort of "gas well liquid level digital sensor" - a solution that takes advantage of available SCADA surface data and converts it to automated calculations of downhole pressures, flow rates and well liquid levels in response to dynamic well operating conditions.

For the first time in the industry, we present in this work a simultaneous calculation of loaded gas well FBHP and gaseous liquids level from only surface data. In either cases of liquids loaded gas wells or pumping oil wells with gaseous liquid columns above them, the significant pressure gradient (delta-P) that gaseous liquid columns impose on the formation is of great importance in correctly understanding and analyzing well supply capacity and enhancing downhole production rates during production operations.
New Mechanism of Sand Management Above ESPs: Cases Study in Colombia
Authors: Delgado Anderson , Espinosa Jorge , Hernandez Maria , Gonzalez Gustavo , Guanacas Luis , Aya William , Perdomo Juan
Published: August 2022

One of the most expensive artificial lift systems in the oil industry is the Electric Submersible Pump (ESP) system, hence the unavoidable need of extending the run life of wells that have installed this system. Following the need of extending the run life, a sand regulator has been designed to protect the pump during shutdowns, and it has been incorporated into traditional sand control configurations to offer extensive protection above and below the pump.

This paper will explain the mechanism of the sand regulator as well as the benefit of installing this system alone above the pump or complemented with a sand control system below the pump. The candidate wells to this integrated solution were selected from MMV (Middle Magdalena Valley) and Putumayo Basins, in Colombia. The wells had sand problems history and it was necessary to review pump designs, pulling reports and sensor parameters. Well conditions such as production, tubing size, and particle size distribution were analyzed to build the best design for every single well. In the design the geometry of the well was assessed to accommodate the cable and CT (Capillary tube) line downhole.

The ADN Field in Colombia is characterized by heavy oil production (API between 13-18°), with fluid production between 1,000-2,000 BFPD, with a viscosity of 270 - 3090 cP @ 122°F, water cuts oscillating depending on the waterflooding effect (Between 1% to 95%) and high fine sand production (200 – 24,000 ppm). The CH Field wells produce between 1,000 – 6,000 BFPD, with API between 17-20°, high water cuts (> 77%) and a high sand production between 100 – 3,000 ppm. The wells selected had other type of sand control and management systems and were highly affected by frequent shutdowns. The Sand Regulator design was installed in 20 wells and was compared with the performance achieved using traditional sand control solutions. After the installation, production has remained stable in all the wells applied, allowing to reduce the PIP of the well of up to 400 psi. Less current consumption has been observed after each shutdown in all the wells, extending the run life of some wells up to double the average. Sensor parameters were analyzed after each pump restart to determine how difficult it was to restart operation after shutdowns.

Compared to the tools installed above the ESP, this sand regulator allows flushing operation through it with flow ranges from 0.5 to 5 bpm. In addition, the unconventional design of this tool has opened the door to a new concept of ESP protection that works in wells with light or heavy oil and can be refurbished or inspected completely without cutting the tool.
Application of a Mechanistic PAGL Simulation Tool to San Juan Field Operations
Authors: Sayman Ozan , Jones Kelsey , Hale Ryan , Pereyra Eduardo , Sarica Cem
Published: August 2022

A mechanistic plunger lift tool was developed to estimate cycle mechanics, liquid unloading, and avoid well integrity issues. The study focuses on the plunger-assisted gas lift (PAGL) wells operated with the two-piece plunger under low tubing wellhead pressure conditions.

The fall and upstroke stages of two-piece plungers were analyzed for eleven wells from San Juan Basin. The fall velocity estimation for plunger parts was modeled for; shut-in, transitional and multiphase flow conditions. Fall and upstroke velocities were estimated using drag-based models that feature drag coefficient, wall factor, and two-phase correction. The field data up to three years from each well was compared with the PAGL Tool estimations. The downhole pressure gauge data was analyzed and compared with plunger liquid slug estimations for two wells. Plunger inspection data and shut-in, afterflow time effects on liquid loading and plunger cycle time were investigated.

The PAGL Tool estimations for full-cycle times were in fair agreement with daily production and plunger lift data of 10 of the 11 wells. The field data and tools estimations for 2- 7/8 in tubing show that two-piece plungers can fall against 600 STB/d liquid and 2 mmscf/d gas production rates with little to no shut-in times, and lower operational boundary for surfacing can be as low as 300 mscf/d without requiring a pressure buildup. The lower gas production being sufficient for upstroke movement increases the operational range of PAGL. The main reason was the low wellhead pressure, which causes gas expansion and higher gas velocity along the well to increase drag force hence the upstroke capability of PAGL with lower gas production rates. The downhole pressure data was compared with multiphase flow simulation with plunger hydrostatic pressure removal. Higher afterflow time settings were shown to be increasing the arrival time data, which suggests a growth of the liquid accumulation at the bottom hole.

Field data shows that plunger lift operation is not limited to wells with marginal production, and it can be used before liquid loading conditions. The hydrostatic pressure removal with plunger lift is shown with field data analysis and plunger lift tool estimations. The study presents that the continuous flow plunger lift operational range can be extended to lower production rates if lower wellhead pressure is achieved.
Update of Field Experience with Hydraulically Regulated Progressing Cavity Pumps
Authors: Skoczylas Paul
Published: August 2022

The patented hydraulically regulated progressing cavity pump (HRPCP) has been tested previously in the oilfield, but its range of application is being expanded. The HRPCP can be used in any well where a PCP would be installed and provides added protection in cases where significant free gas may be present. It is as effective as a standard PCP in pumping high viscosity fluids or fluids with high solids content, or both. It retains its effectiveness as a pump even when no gas is present, although its primary benefit is the increase in PCP run-life when there is free gas present at the pump intake. The present study is to evaluate the performance of the HRPCP in new applications around the world.

Previous publications on the HRPCP have looked at installations in Argentina, Venezuela, and Kuwait. There are now installations in coal seam gas (CSG) in Queensland, Australia, gassy oil wells in Colombia, and heavy oil wells in the Lloydminster area of Canada, and in wells in the newer operations in the Clearwater formation near Slave Lake in Alberta, Canada. In Canada in particular, there have been 27 installations in thirteen fields by six oil companies at the time this paper was prepared.

In Colombia, the HRPCPs were installed in new wells that were expected to produce high gas volumes while still producing some sand. In the Australian CSG wells, operators wanted to land the pumps higher in the well to avoid solids problems, knowing that this would result in higher gas volume fraction at the pump intake, so the HRPCP was chosen. In the Canadian heavy oil areas, there can be a higher GOR in many wells than there was in the past, so the gas fraction at the pump intake can now be a larger factor in PCP run-life than in the past. In some of the Canadian wells, the performance data of the previous installation is available for a direct comparison.

Overall, the run-life of the HRPCP has been excellent in comparison to either expectations or to the run-life of previous PCPs in the same wells or fields. In one example well, the previous PCP suffered a significant drop in efficiency (from 60% to 10%) after 90 days. The HRPCP that followed it has been running at 70% efficiency for over 180 days (and still going). In Colombia, the operator saw reduced load on the pump due to the "gas lift" effect from the gas going through the pump and up the tubing, while exceeding expectations for run-life.
Functional interdependence of the actin regulators CAP1 and cofilin1 in control of dendritic spine morphology
Authors: Heinze Anika , Schuldt Cara , Khudayberdiev Sharof , Bommel Bas van , Hacker Daniela , Schulz Toni , Stringhi Ramona , Marcello Elena , Mikhaylova Marina , Rust Marco
Published: August 2022

The vast majority of excitatory synapses are formed on small dendritic protrusions termed dendritic spines. Dendritic spines vary in size and density that are crucial determinants of excitatory synaptic transmission. Aberrations in spine morphogenesis can compromise brain function and have been associated with neuropsychiatric disorders. Actin filaments (F-actin) are the major structural component of dendritic spines and therefore actin-binding proteins (ABP) that control F-actin dis-/assembly moved into the focus as critical regulators of brain function. Studies of the past decade identified the ABP cofilin1 as a key regulator of spine morphology, synaptic transmission and behavior, and they emphasized the necessity for a tight control of cofilin1 to ensure proper brain function. Here, we report spine enrichment of cyclase-associated protein 1 (CAP1), a conserved multidomain protein with largely unknown physiological functions. Super-resolution microscopy and live cell imaging of CAP1-deficient hippocampal neurons revealed impaired synaptic F-actin organization and dynamics associated with alterations in spine morphology. Mechanistically, we found that CAP1 cooperates with cofilin1 in spines and that its helical folded domain is relevant for this interaction. Moreover, our data proved functional interdependence of CAP1 and cofilin1 in control of spine morphology. In summary, we identified CAP1 as a novel regulator of the postsynaptic actin cytoskeleton that is essential for synaptic cofilin1 activity.
Degradation of iprodione by a novel strain Azospirillum sp. A1-3 isolated from Tibet
Authors: Pan Hu , Zhu Bei-ke , Li Jin , Zhou Zi-Qiong , Bu Wen-Bin , Dai Yan-na , Lu Xiang-Yang , Liu Hu-Hu , Tian Yun
Published: August 2022

A bacterial strain A1-3 with iprodione-degrading capabilities was isolated from the soil for vegetable growing in greenhouses at Lhasa, Tibet. Based on phenotypic, phylogenetic, and genotypic data, strain A1-3 was considered to represent a novel species of genus Azospirillum. It was able to use iprodione as the sole source of carbon and energy for growth, 27.96 mg/L iprodione was reduceded within 108 h at 25℃. During the degradation of iprodione by Azospirillum sp. A1-3, iprodione was firstly degraded to N-(3,5-dichlorophenyl)-2,4-dioxoimidazolidine, and then to (3,5-dichlorophenylurea) acetic acid. However, (3,5-dichlorophenylurea) acetic acid cannot be degraded to 3,5-dichloroaniline by Azospirillum sp. A1-3. Azospirillum novel strains with the ability of iprodione degradation associated with nitrogen fixation has never been reported to date, and Azospirillum sp. A1-3 might be a promising candidate for application in the bioremediation of iprodione-contaminated environments.
Development and evaluation of an electronic diagnostic algorithm using a combination of a two-step malaria rapid diagnostic test detecting PfHRP2 and pLDH, biomarkers and bacterial pathogen specifics point of care tests for the management of febrile illnesses in children from 6 to 59 months attending outpatient facilities in Burkina Faso.
Authors: Kiemde Francois , Compaore Adelaide , Koueta Fla , Some Athanase M. , Kabore Berenger , Valia Daniel , Rouamba Toussaint , Bocoum Fadima Yaya , Sawadogo Seydou , Nana Macaire , Some Diane Y , Kone Nadine A. , Pagbeleguem Valentin , Sangare Inoussa , Bere Antonia W. , Bonko Massa dit Achille , Tougri Gautier , Youl Sylvie Yeri , Schallig Henk , Tinto Halidou
Published: August 2022

• Background: In Sub-Saharan Africa (SSA), febrile illnesses remain a major public health problem in children. However, the persistence of hrp2 antigen and the low sensitivity of pLDH RDT negatively affect antimalarials and antibiotics prescription practices. These limitations lead to poor management of febrile diseases and antimicrobial resistance (AMR). To improve the diagnosis of these febrile diseases and subsequent prescription of antimicrobials, it is hypothesized that the implementation of an algorithm including a two-step malaria RDT PfHRP2/pLDH supported by point-of-care (PoC) tests for bacterial infections could significantly improve the management of febrile diseases and thereby tackling AMR.• Methods: To assess the value of the proposed algorithm, an open-label randomized controlled trial with three arms, enrolling febrile children from 6 to 59 months is proposed.- In the control arm, febrile children will be managed according to the Integrated Management of Childhood Illnesses (IMCI), which is part of the standard of care in Burkina Faso. Treatment will be done according to national guidelines.- In RDTs decisional algorithm (RDT-DA) arm (intervention), the clinical examination based on IMIC will be supported by a two-step malaria RDT and bacterial infections RDTs. Prescription will be left to the discretion of the healthcare workers based on clinical examination and PoC test results- In e-algorithm arm (intervention), artificial intelligence integrating multiple layers of clinical information such as clinical examination, signs/symptoms and medical history, and biological information such as biomarkers (CRP and WBC) and pathogen specific PoC tests, and oximetry will be developed. The e-algorithm will serve to guide the diagnostic and management of febrile infections in children.In the 3 arms, the case report forms will be digitalized. A final follow-up visit (day 7) will be scheduled for all participants. Patients will be asked to come back to the health facilities before the scheduled visit if the symptoms persist or in case of health condition worsening.• Discussion: If successful, this study could contribute to improve the management of febrile diseases and reduce inappropriate use of antimicrobials. • Trial registration: The trial is registered at ClinicalTrial.gov, NCT05285657. Enrolment started on 4th March 2022 with long term outcome being assessed completely by 2023
Descriptive analysis of Snakebite surveillance data in North Bank West Region, The Gambia, 2017 – 2021
Authors: Njie Modou K.O. , Kebbeh Abou , Fofana Modou Lamin , Adewuyi Peter , Umeokonkwo Chukwuma David
Published: August 2022

Background
Snakebites affect about 5.4 million people worldwide resulting in over 137,880 deaths per year. In Sub-Saharan Africa, the incidence of snakebite cases is generally underestimated despite the adverse effect of snakebite when it occurs. We therefore conducted this study to describe the incidence of snakebites in the North Bank West Region of the Gambia.
Methods
We reviewed snakebite surveillance data from 2017 to 2021 as recorded in health facility registers in North Bank West Region of The Gambia. Variables extracted were age, sex, date reported, health facility name, district of residence, and case outcome. We summarized the data by person, place, and time and results were presented using frequencies and proportions in tables, charts, graphs and maps.
Results
A total of 197 cases were reported, the median age was 20 (IQR:13–30) years, and males were 69.0% (136/197). 35.0% (69/197) of snakebite victims were between age group 10–19 years of age. The 5-year incidence rate was 31 snakebite cases per 100,000 population with a case fatality ratio of 4.1%. Jokadou District recorded the highest number of incidences (14 cases per 10,000) in 2017. 72.6% (143/197) of the snakebites occurred during the rainy season (June-October). The year 2020 recorded the highest incidence of snakebite in the region, 59 snakebite cases per 100,000 population.
Conclusion
There was a high incidence of snakebite cases recorded and Jokadou District recording the highest with the peak occurring during the rainy season. We recommend that the Regional Health Directorate work with health facilities to regularly organize health education activities for the communities, especially during the start of the rainy season.