bluuebunny/crossref_metadata_2025_split huggingface dataset:
Right Ventricular Longitudinal Strain in Acute Pulmonary Embolism and Right Ventricular Myocardial Infarction in Patients with McConnell’s Sign
Authors: Mazur E. S. , Mazur V. V. , Rabinovich R. M. , Myasnikov K. S. 
Published: November 2020

Aim To study the right ventricular (RV) myocardial longitudinal systolic strain in patient with RV myocardial infarction (MI), and pulmonary embolism (PE) with and without McConnell’ phenomenon.Material and methods This study included 53 patients with PE (mean age, 59.0±15.1 years; men, 58.5 %) and 30 patients with RVMI (mean age, 61.8±10.9 years; men, 90 %). Longitudinal strain of basal, medial and apical segments of the RV free wall (RVFW) and the interventricular septum (IVS) was determined in the mode of two-dimensional speckle tracking. Ratio of the IVS apical strain to the RVFW strain (apical ratio) was calculated. Systolic excursion of the RVFW apical segment (apical excursion) was measured in the anatomical M-mode from the apical four-chamber view.Results The McConnell’s sign was observed in 23 (43.4 %) of 53 patients with PE and in 16 (53.3 %) of 30 patients with RVMI (p>0.05). Irrespective of the cause for the RV damage, patients with the McConnell’s sign had higher values of the apical ratio (1.69±0.50 vs. 0.95±0.22; p<0.001; cutoff point, 1.18) and apical excursion (7.9±1.7 vs. 2.6±1.4 mm; p<0.001; cutoff point, 5.0 mm). Apical excursion closely correlated with the value of apical ratio (r=0.65; p<0.001) but not with the RVFW apical segment strain (r= –0.07; p>0.05).Conclusion Incidence of the McConnell’s sign was similar in patients with PE and RVMI. McConnell’s sign is based on a passive systolic shift of the RVFW apical segment, which develops during contraction of the IVS apical segment. The greater the ratio of IVS apical segment to RBFW global strain the greater the amplitude of this shift. With the ratio value of 1.18 or more, the systolic shift of RVFW apical segment was >5 mm, which was visually perceived as the McConnell’s sign.
Prevention of Diastolic Dysfunction Caused by Doxorubicin by Mitochondrial Antioxidant Plastomitin
Authors: Lakomkin V. L. , Abramov A. A. , Lukoshkova E. V. , Prosvirnin A. V. , Kapelko V. I. 
Published: November 2020

Aim An attempt to prevent the development of diastolic dysfunction (DD) with the mitochondrial antioxidant plastomitin on a model of doxorubicin-induced cardiomyopathy. DD is a type of chronic heart failure. Due to the increasing number of patients with this condition and the absence of effective therapy, development of means for DD correction is a relevant objective.Material and methods Cardiomyopathy was modeled in 17 rats by two subcutaneous injections of doxorubicin 2 mg/kg/week. The other group (n=17), also administered with doxorubicin, received plastomicin 0.32 mg/kg daily subcutaneously. Left ventricular function was evaluated with echocardiography (EchoCG) and cardiac catheterization with simultaneous pressure and volume monitoring.Results According to EchoCG data the ejection fraction remained unchanged in the experimental groups. Cardiac catheterization showed disorders of both myocardial contractility and relaxability only in the doxorubicin group.Conclusion A course of plastomitin in combination with the doxorubicin treatment can maintain normal heart contractility and thereby, prevent the known doxorubicin cardiotoxicity.
ECG changes in COVID-19
Authors: Ryabykina G. V. 
Published: November 2020

Aim To evaluate changes in 12-lead ECG in patients with coronavirus infection.Materials and methods This article describes signs of electrocardiographic right ventricular “stress” in patients with COVID-19. 150 ECGs of 75 COVID-19 patients were analyzed in the Institute of Cardiology of the National Medical Research Centre for Therapy and Preventive Medicine. The diagnosis was based on the clinical picture of community-acquired pneumonia, data of chest multispiral computed tomography, and a positive test for COVID-19. ECG was recorded both in 3-6 and in 12 leads. Signs of right ventricular (RV) stress, so-called systolic overload (high R and inverted TV1–3 and TII, III, aVF), and diastolic overload (RV wall hypertrophy and cavity dilatation; complete or incomplete right bundle branch block) were evaluated.Results The most common signs for impaired functioning of the right heart include emergence of the RV P wave phase (41.3 %), incomplete right bundle branch block (42.6 %), ECG of the SIQ IIITIII type (33.3 %) typical for thromboembolic complications, and signs of RV hypertrophy, primarily increased SV5–6 (14.7 %). These changes are either associated with signs of RV myocardial stress (16 %) or appear on the background of signs for diffuse hypoxia evident as tall, positive, sharp-ended T waves in most leads (28 %).Conclusion A conclusive, comprehensive assessment of the reversal of hemodynamic disorders and electrocardiographic dynamics in patients with COVID-19 will be possible later, when more data become available.
The Risk of Developing Ischemic Stroke in Patients After Exacerbation of Ischemic Heart Disease
Authors: Brazhnik V. A. , Minushkina L. O. , Khasanov N. R. , Kosmacheva E. D. , Chichkova M. A. , Erlikh A. D. , Zateyshchikov D. A. 
Published: November 2020

Aim To develop a model for evaluating the risk of stroke in patients after exacerbation of ischemic heart disease who were admitted to the hospitals included into a vascular program.Materials and methods This study included 1803 patients with acute coronary syndrome (ACS) from four institutions of Moscow, Kazan, Astrakhan, and Krasnodar where the vascular program was established. Mean age of patients was 64.9±12.78 years, 62,1 % of them were men. The patients were followed up for one year after the discharge from the hospital. External validation of the developed prognostic model was performed on a cohort of patients with ACS included into the RECORD-3 study.Results During the follow-up period, 42 cases of ischemic stroke were observed. The risk of ischemic stroke was associated with the presence of atrial fibrillation (odd ratio (OR) 2.640; р=0.037), diabetes mellitus (OR 2.718; р=0.041), and chronic heart failure (OR 7.049; р=0.011). Protective factors were high-density lipoprotein cholesterol >1 mmol/l (OR 0.629; р=0.041), percutaneous coronary intervention during an index hospitalization (OR 0.412; р=0.042), anticoagulant treatment (OR 0.670; р=0.049), and achieving the blood pressure goal (OR 0.604; р=0.023). The prognostic model developed on the basis of regression analysis showed a good predictive value (area under the ROC curve, 0.780), sensitivity of 80 %, and specificity of 64.6 %. The diagnostic value of other scales for risk assessment was somewhat lower. The area under the ROC curve was 0.692±0.0245 for the GRACE scale and 0.708±0.0334 for CHA2DS2‑VASc. In the external validation of the scale based on data of the RECORD-3 study, the diagnostic value was lower although satisfactory as well (area under the ROC curve, 0.651); sensitivity was 78.9 %, and specificity was 52.3 %.Conclusion The study resulted in development of a simple clinical scale, which will probably allow identifying groups at risk of stroke more precisely than with standard scales.
Study of clinical profile and associated risk factors for congenital malformations in neonates: a hospital based prospective study
Authors: Nikhurpa Mamta , Munshi Sucheta , Shah Dipti 
Published: November 2020

Background: Congenital malformations are major cause of neonatal morbidity and mortality and account for 8-10% of all peri-natal deaths especially in developing countries. Incidence of congenital malformation is increasing owing to reduction in other causes of neonatal deaths due to improvement in perinatal care worldwide. This study was aimed to evaluate the incidence, perinatal variables and contributing risk factors associated with birth defects that will help to plan future strategies for prevention, early diagnosis and timely management. Methods: This is a hospital-based prospective observational study conducted in department of pediatrics of a tertiary care centre of western India over period of two year. All new-borns with anatomical congenital malformations detected antenatal or postnatal (prior to discharge) period were included in this study. Detailed and careful clinical examination was carried out for all new-born.Results: The incidence of congenital malformation in the present study is 1.27%. Prematurity (76.1%), low birth weight (68%) and male neonates (67%) were associated with increased risk of congenital malformation. Most common system involved in this study was cranio-spinal system (47.3%). Overall, most common congenital anomaly was Hydrocephalus with meningomyelocele (8%). Among maternal variables, malnutrition (90%), consanguinity (40%) and abortions (40%) are strongly associated with malformations. Conclusions: Congenital malformations are important cause of neonatal death. Strategies to diagnose, prevent, treat and rehabilitate the neonate are utmost necessary. Early screening to identify high risk pregnancies and timely management is strongly recommended.
ВІДТВОРЕННЯ КАПІТАЛУ В АГРАРНОМУ СЕКТОРІ ЕКОНОМІКИ ЯК ОБ’ЄКТ ФІНАНСОВОЇ ПОЛІТИКИ
Authors: Лемішко O.O. 
Published: November 2020

Анотація. Розглянуто особливості відтворення капіталу в аграрному секторі економіки як об’єкта державної фінансової політики. Означено дефініцію відтворення капіталу в аграрному секторі як періодично відновлюваного функціонування продуктивного капіталу взаємопов’язаних підприємств різних галузей сільського господарства і функціонально пов’язаних з ними обслуговуючих формувань, що задовольняють потребу в продуктах харчування і сировині для переробної промисловості; інвестування продуктивного капіталу забезпечує циклічне проходження процесу виробництва сільськогосподарської продукції і приріст вартості у формі доходу. Акцентовано, що недостатньо дослідженими залишаються сутність та особливості відтворення капіталу в аграрному секторі економіки з огляду на визначення можливостей і доцільності цілеспрямованого управління цим процесом засобами фінансової політики. Пропонується розуміння особливостей відтворення капіталу в аграрному секторі економіки базувати на методологічних засадах дослідження закономірностей та особливостей кругообігу виробничого, товарного і грошового капіталів. Доведено, що цикл відтворення капіталу в агарному секторі економіки має міжгалузевий комбінований характер і може бути структурований на три автономні цикли, пов’язані між собою міжгалузевими зв’язками — у сільському виробництві, переробці сільськогосподарської продукції та заготівельно-торгівельній діяльності. Причино-наслідкові зв’язки між комплексом специфічних рис аграрного сектору економіки та особливостями відтворення його капіталу подано у формі каузальної моделі формування особливостей відтворення капіталу аграрного сектору економіки. На основі комплексу особливостей відтворювального циклу капіталу в аграрному секторі економіки визначено вимоги до формування відповідної державної фінансової політики.
Ключові слова: капітал, відтворення, аграрний сектор, каузальна модель, державна фінансова політика
Формул: 0; рис.: 1, табл.: 2; бібл.: 14.
The Issue of Girls’ Education in Warsaw Ideological Magazines for Women (1907–1918)
Authors: Krakowiak Małgorzata 
Published: November 2020

The aim of the article is to present the issue of girls’ education in Warsaw ideological magazines. The press titles selected for analysis were “Ster” (1907–1914), “Przebudzenie” (1909–1912), “Ziemianka” I and II (1908–1918; 1910–1918), and “Pracownica Polska” – “Pracownica Katolicka” (1907–1918). The article attempts to answer the questions: What issues related to the education of girls were raised in individual women’s periodicals? How were these topics described? What function did the press publications have?
The analysis was qualitative. In this text, historical-pedagogical and press research methods were used. The article indicates and discusses the main issues of girls’ education published in selected women’s periodicals until the end of the First World War. The women’s publications represented various ideological positions. They are presented in order from most conservative to most progressive.
Characteristics of Salt-Related Faults in Abu Dhabi, UAE
Authors: Noufal Abdelwahab 
Published: November 2020

AbstractKinematically salt-related faults and fault linkage in Abu Dhabi were classified based on the faults geometry, linkage patterns, deformed layers, and associated salt bodies. The outcrops observations and subsurface numerical modelling address fault patterns and styles. The study is based on analysis of cored data, well logs, and seismic and potential field data and linked to the exposures from outcrops.Salt updoming in the strike slip regions can be formed in the transtensional and in the transpressional regions of the fault segments. Strike slip faults prevailing Abu Dhabi triggered salt movements; as the inherited basement faults reactivation triggered salt in the transpressional regions due to compressional forces. In the transtentional regions, the pull-apart basins is favouring zones for salt updoming. The faults showing asymmetric arrays of tectonic and salt related faults. The tectonic inherited faults are the master segments evolving transtensional/transpressional zones and the diapirs crestal faults are radial in nature linked to the tectonic faults. These faults dip primarily basinward and sole into a subhorizontal salt layer; ramp faults, that extend upward from the landward margin of mushroom salt stocks. The fault segments found triggering salt movement, principally those showing zone of overlap in both transpressional and transtensional regions. In addition, the salt piercements are usually evolved in the transpressional zones and the diapirs not reached the surface formed in the transtensional regions. Therefore, the salt domes are only updoming in these locations answering the question, why not distributed all over Abu Dhabi. Furthermore, the salt mainly allocated in the offshore relative to the onshore, because of the presence of the NE transtenciona shear zone relative to the master NW-fault trends, creating zones of pula-apart basins. The areas of extension between the fault segments are not favoring salt piercement movement and hence forming deep-seated diapirs. Potential field data revealed that the salt is deep seated in the onshore of Abu Dhabi and most of the anticlines forming the giant hydrocarbon fields are rooted by salt diapirs. Understanding the origin of salt movements and their relation to the fault systems of Abu Dhabi help in exploration of the new ventures and development of those fields related to salt tectonics.
Real-Time Fiber-Optic Coiled Tubing Delivered Well Intervention Savings Through Faster Decision-Making Process
Authors: Lerose Marco , Pelusi Luca , Spagnolo Salvatore , Scarso Marco , Colombo Marco , Mittiga Vincenzo , Battaglia Francesco , Cicione Sara , Bartolotto Giuseppina Angela , Riva Simone , Gaeta Massimiliano , Santin Yoann 
Published: November 2020

Abstract
Historically, the preferred method for restoring production on oil producers in a mature field in South Europe (Field A) was bullheading a matrix acid stimulation treatment. Even if successfully implemented, bullheading treatments at matrix rate are not always optimum and, for Well A, it was decided to diagnose the producing interval first to deliver a better selective stimulation treatment through coiled tubing (CT).
This paper presents a novel approach implemented and discusses its associated benefits. Real-time (RT) fiber-optic (FO) CT (RTFOCT) technology was selected to diagnose this well for such benefits. These include accessibility of the producing zone (horizontal section), pumping capabilities, and versatility in executing different well interventions using single equipment. The technology is composed of a FO cable preinstalled into the CT pipe and a modular sensing bottomhole assembly (BHA). In addition to be the telemetry medium for the sensing BHA, the FO can be used as a sensor for distributed temperature and acoustic sensing (DTS and DAS).
Having access to downhole information in RT helped to implement the decision-making process more quickly. DTS and DAS were used to evaluate the reservoir performance before perforating and assessing well performance, post perforation and stimulation. The sensing BHA helped ensure accurate placement of the perforations and stimulation treatment using a RT casing collar locator (CCL) and gamma ray (GR). Monitoring the bottomhole tension and compression allowed the operation to be performed in a safer and more reliable environment. RTFOCT allows interval diagnostics, stimulation treatment, and evaluation in a single CT run. Having the RTFOCT available also allows quick reaction to unexpected well problems, making diagnosis and remediation easier and faster. Moreover, one of the main goals for well monitoring and field management consists of production optimization activities designed to decrease Water Cut (WC). This has been made possible thanks to the detailed downhole dynamic characterization of the specific water flooding zones coming from RTFOCT, which allows Operator to stimulate the matrix in the right zone to enhance well performance, as well as design focused Water Shut-Off (WSO) interventions.
The focus of the paper lies in the capabilities of the Operators to effectively manage this new tool in order to perform downhole analyses in real-time. This enables potentially problematic or complex scenarios to be identified early on, allowing time to react before they fully develop, thus increasing the percentage of success of the planned job, as experienced in the case study presented.
Intelligent Reconciliation of Well Logs – A Pathway Towards 4IR Assisted Log Interpretation
Authors: Katterbauer Klemens , Al-Yousif Ali A , Marsala Alberto 
Published: November 2020

Abstract
Reservoir characterization, well log analysis and interpretation are key enablers for the optimization of field development and the maximization of recovery. Key challenges in well log analysis are that the current interpretation practices could be subjective, discrete and demanding. Additionally, comparing and analyzing well log data from multiple wells requires constraints to the geological setting. Leveraging on big data well log availability in developed areas, we present an innovative fourth industry revolution (4IR) method for the reconciliation of well logs to automatically assist the process of well log interpretation.
The training set of the method consists of reconciled sonic, resistivity and density well logs together with their target set of saturation and porosity. A multi-layer neural network was trained on selected data sets and validated on a synthetic reservoir case as well as on a reservoir box model.
The results are very promising, paving the way towards an innovative approach for the artificial intelligence assisted interpretation of well logs.
Leading Capital Projects to Repeatable Success
Authors: Gachter Rolando , Marton Andras 
Published: November 2020

Abstract
Heavy industry owner companies can deliver large capital projects with repeated success, even during difficult times, by adhering to the fundamentals for delivering projects effectively. As the COVID-19 public health crisis evolves, owners will have to contend with heightened levels of project execution uncertainty. If the capital project industry’s execution performance track record over the last several years is any indication, owners should be concerned. This is especially critical in the Middle East where schedule performance is notably longer and less predictable than in the rest of the world.
Fortunately project fundamentals have not changed: they still drive success. To stay profitable in these leaner times, owners need to (1) regain discipline and re-focus on project fundamentals; (2) address organizational challenges in alignment across functions and competencies; (3) resolve major supply chain issues relating to quality and productivity. With this presentation we describe successful responses to our challenges that have improved CAPEX efficiency by over 30 percent when successfully applied.
Ensure Zonal Isolation Behind Liner Across Multiple Reservoirs with Well on Total Losses
Authors: Ullah Syed Zahoor , Ruzhnikov Alexey , Qasmi Urooj , Subhi Ahmed , Al Fakih Abdulqawi , Al-Mutahr Ammar 
Published: November 2020

Abstract
Loss circulation is encountered frequently while drilling fractured carbonate reservoirs in specific field. The field practice was attempting to cure losses and if incurable, drill blind to total depth (TD) followed by run and cementing of the liner. The interval from loss zone to liner top was covered by the cement squeezed from liner top. The require time to try to cure the lost circulation zone plus squeezing cement job was approximately 15 days. Several optimization initiatives were implemented to reduce this time to less than seven days.
There were at least eight round trips carried out in different ways by different operators to complete the operation of attempting to cure the losses and a liner top squeeze. The engineering team evaluated this for potential optimization, first to identify whether or not losses need to be attempted to be cured to save the time lost on unsuccessful attempts. Second, to analyze the lessons learnt and build on that optimization strategy to reduce the number of trips Lastly to rework the cement slurry design to reduce the number of attempts to squeeze liner top.
As such a detailed strategy was formulated regarding when and how to cure losses followed by an optimized procedure for liner top squeeze which saves three round trips. Further, the liner top squeeze operations previously took multiple attempts of squeeze before a successful pressure test was achieved. Based on the lessons learnt, the slurry design was optimized from several aspects including, slurry density, rheology, thickening time and the pumping and displacement procedure was created which helped to reduce the number attempts from six to only one. Another optimization implemented was enabling the loggers perform pressure pass for cement evaluation by the utilization of tractor instead of conventional (Tough Logging Conditions) TLC which not only saved time but also depicted better the condition of cement behind liner. Finally, a robust risk assessment encompassing all possible contingencies for expected issues was incorporated.
The optimized liner top squeeze strategy has been implemented at five wells with 100% success, reducing the overall operation time from more than two weeks to less than one week while improving cement quality behind liner to ensure zonal isolation as per requirements.
This paper provides details of how the cement slurry, operations sequence and tools selection were enhanced well by well based on continuous improvement. Since cementing liners across loss circulation intervals exists in most of the carbonate reservoirs worldwide, this paper will help to achieve better zonal isolation in losses environment with lower cost and lesser time.