bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Comprehensive Evaluation of Dimension-Reduction Approaches in Optimization of Well Rates
Authors: Awotunde Abeeb A. 
Published: April 2019

Summary
This paper evaluates the effectiveness of six dimension-reduction approaches. The approaches considered are the constant-control (Const) approach, the piecewise-constant (PWC) approach, the trigonometric approach, the Bessel-function (Bess) approach, the polynomial approach, and the data-decomposition approach. The approaches differ in their mode of operation, but they all reduce the number of parameters required in well-control optimization problems. Results show that the PWC approach performs better than other approaches on many problems, but yields widely fluctuating well controls over the field-development time frame. The trigonometric approach performed well on all the problems and yields controls that vary smoothly over time.
Hydrate-Bedding Mechanisms in Partially Dispersed Water/Oil Systems
Authors: Srivastava Vishal , Majid Ahmad A. A. , Warrier Pramod , Grasso Giovanny , Koh Carolyn A. , Zerpa Luis E. 
Published: April 2019

Summary
Gas hydrates are considered a major flow-assurance challenge in subsea flowlines. They agglomerate rapidly and form hydrate blockages. During transient operations [shut-in and restart (RS)], risk of blockage formation owing to hydrates can be greater compared to that during the continuous operations. In particular, hydrate formation during an unplanned shut-in and subsequent restart could lead to increased operational hazards. In this work, flow-loop tests were conducted under both continuous-pumping (CP) and RS conditions, using Conroe crude oil with three different water fractions (30, 50, 90 vol%) at 5 wt% salinity, over a range of mixture velocities (from 2.4 to 9.4 ft/sec). It was determined that RS operations resulted in an earlier onset of hydrate particle bedding—twice as fast as those in CP tests—from the interpretation of pressure-drop and mass-flow-rate (MFR) measurements. Droplet imaging using a particle vision and measurement (PVM) probe suggested larger water droplets (100–300 µm) during the shut-in, as compared to the CP tests (=40 µm) at 50 and 90 vol% water cuts (WCs). For the tests performed using a demulsifier at 200 ppm, PVM images suggested larger water droplets (mean droplet size = 94 µm), as compared with the test with no demulsifier (mean droplet size = 21 µm). The test using a demulsifier resulted in higher pressure drops and lower MFRs compared with the test with no demulsifier, indicating poor hydrate transportability when water was partially dispersed in the oil phase. The current study indicated that partially dispersed systems present greater risks of hydrate plugging as compared with the fully dispersed systems in the range of water volume fractions from 50 to 95 vol% WC, which was the phase inversion point of the water-in-crude-oil (Conroe14 crude) system. The flow-loop-test analyses presented in this work can potentially aid in an improved mechanistic understanding of RS operations, involving unplanned shut-ins and restarts.
Automatic Operation and Control of a Novel Coalescing Centrifugal Pump for Improved Oil/Water Separation
Authors: Husveg R.. , Husveg T.. , van Teeffelen N.. , Ottestad M.. , Hansen M. R. 
Published: April 2019

Summary
In this paper we present the development and implementation of automatic operation and control for a pump/hydrocyclone produced-water-treatment system to maximize oil/water-separation efficiency. A so-called perturb-and-observe (P&O) algorithm is adapted for a novel centrifugal pump to continuously optimize the point of operation. The novel pump coalesces and increases the size of oil droplets in the produced water, resulting in a unique relationship between the coalescing effect and the point of operation, and allowing for the successful implementation of the P&O algorithm. The algorithm was implemented in two different setups, one measuring the droplet-size distribution between the hydrocyclone and the pump, and the other measuring the oil concentration downstream of the hydrocyclone. The latter was considered the most robust because it required no prior knowledge of the system. Nonetheless, both setups achieved satisfying results and compared favorably with a third setup, where the optimal point of operation was predicted using measurements of the upstream produced-water characteristics.
Acute cerebral infarction with adenomyosis in a young woman: a case report
Authors: zhao yuan , Zhang Yongbo , Yang Yishu 
Published: April 2019

Abstract
Background

Acute cerebral infarction with adenomyosis in a young woman has been rarely reported.

Case presentation

We describe a 34-year-old young woman who presented headache and fever (38°C) for 4 days and left limb weakness for 1 day during her menstrual phase. Laboratory test data showed: Hemoglobin (HGB) (112g/L, normal: 120-150 g/L), Carcinoembryonic antigen 125 (CA125) (937.70U/ml, normal: 0-35 U/ml), D-Dimer (27.4mg/L, normal: 0-1.5mg/L). Magnetic resonance imaging (MRI) indicated acute cerebral infarction in right basal ganglia and subcortical region of right frontotemporal lobe. Further, brain computed tomography angiography (CTA) showed that the M1 segment of right middle cerebral artery was strictured and the distal branches of right middle cerebral artery were significantly less than those on the opposite side. No obvious abnormality was found in cranial magnetic resonance venogram (MRV). She had a 5-year history of adenomyosis. No tumors were found by whole body positron emission tomography-computed tomography (PET-CT). We treated this patient by using anti-infective therapy for 1 week and using anticoagulant therapy with low molecular weight heparin for 2 weeks. Subsequently, the anticoagulant therapy was discontinued and replaced by antiplatelet therapy with poliovir. We followed up this patient for 4 months, and no recurrence of cerebral infarction was found.

Conclusions

Acute cerebral infarction with adenomyosis may be related to elevated D-Dimer, elevated CA125, anemia, menstruation and fever. Our report suggests that acute cerebral infarction with adenomyosis can occur not only in middle-aged women but also in young women, and fever during menstrual phase in a woman with adenomyosis may be a factor leading to acute cerebral infarction.
Anticoagulant therapy in patients with atrial fibrillation and concomitant chronic kidney disease: the results of a prospective study
Authors: Daabul I. S. , Sokolova A. A. , Tsarev I. L. , Napalkov D. A. , Fomin V. V. 
Published: April 2019

In recent years, both Russian and foreign authors have published many papers on anticoagulant therapy for atrial fibrillation (AF). The largest are devoted to the study of direct oral anticoagulants (DOACs), which have appeared in this field since 2009, and their comparison with vitamin K antagonists (VKAs) in terms of efficacy, safety and other important characteristics. There are far fewer studies on DOACs and their comparison with VKAs and with each other in patients with AF and reduced kidney function. Most of them are retrospective. Meanwhile, the prevalence of chronic kidney disease (CKD) in the population is very high, and doctors are faced with a problem of selecting anticoagulant therapy for these patients.Purpose. To assess the effect of VKAs and DOACs on renal function in real clinical practice in patients with AF depending on the stage of CKD.Materials and methods. A prospective single-centre non-randomized non-interventional observational study in parallel groups was conducted. The study included 92 patients with AF and CKD of 1-4 stages (S1-S4). The comparison group consisted of 35 patients with AF without concomitant CKD. The patients’ age ranged from 44 to 94 years (mean age was 72.2 ± 8.5 years). Patients of both groups received anticoagulant therapy with VKA (warfarin) or one of the registered in the Russian Federation DOACs (dabigatran, rivaroxaban, apixaban). During the observation (median was 10 months), follow-up visits were every 3 months. On visits we conducted the evaluation of effectiveness (strokes / TIA and thromboembolic complications) and safety (major and minor hemorrhagic events) of anticoagulant therapy, as well as the dynamics of kidney function (CC by Cockroft-Gault, GFR by CKD-EPI).Results. The main results are devoted to patients with AF and concomitant CKD. Significant dynamics of the kidney function depending on the anticoagulant taken (VKA or representatives of the DOACs class) were not identified. There were not any thromboembolic complications and major bleedings during the observation period. Statistically significant more minor bleedings on any dose of rivaroxaban in comparison with other anticoagulants were identified.Conclusions. In patients with AF and CKD, there was no significant effect of one or another anticoagulant on the kidney function, which is probably related to the concomitant nephroprotective therapy obtained in a large percentage of cases (ACE inhibitors / ARA, calcium antagonists, statins). Therapy with DOACs and warfarin in patients with AF and CKD for an average of 10 months of followup was effective and safe. In case of AF and CKD combination, the use of dabigatran or apixaban seems to be more preferable in relation to minor bleedings, the use of which less often leads to the development of hemorrhagic events.
Possibilities for correcting endothelial dysfunction in patients with arterial hypertension and coronary heart disease
Authors: Filippov E. V. 
Published: April 2019

The article is devoted to the treatment of endothelial dysfunction in patients with hypertension and coronary artery disease. The authors assess the possibilities for correction of endothelial dysfunction using the main classes of antihypertensive drugs. The efficacy and advantage of combination therapy in the treatment of such patients is shown.
Human urine contamination with environmental pollutants: simultaneous determination using UPLC-MS/MS
Authors: Beltifa Asma , Machreki Monia , Ghorbel Asma , Belaid Afifa , Smaoui Emna , Akrout Feriele Messadi , Di Bella Giuseppa , Khdary Nezar H. , Reyns Tim , Ben Mansour Hedi , Van Loco Joris 
Published: April 2019

Abstract
Paraben derivatives are widely used as an antifungal, antimicrobial preservative in cosmetic products, pharmaceuticals, and food. These molecules are called endocrine disruptors (EDCs). The exposure of the human body to paraben derivatives needs further study and for this purpose 200 urine samples were collected from Tunisian men and women aged between 5 and 90 years to determine three paraben derivatives: methylparaben (MP), ethylparaben (EP) and propylparaben (PP) using ultra performance liquid chromatography–tandem mass spectrometer (UPLC-MS/MS). The three major parabens were found in 95 urine samples. The obtained results indicate that MP, EP, and PP were detected in 57%, 46%, and 40% of all samples, respectively. Urinary concentration for the three parabens was in the range of 0.88–84.46 ng/mL, 0.52–29.2 ng/mL, and 0.51–28.17 ng/mL of PP, MP, and EP, respectively. In addition, the concentrations of the paraben derivatives in women were higher than those of men. These findings indicate that the exposure occurs from common products (foods, cosmetics, and pharmaceuticals). The Tunisian authorities should control the composition of packaging of these common products in order to protect humans against EDCs.
Heterogeneous Fenton-like oxidation of p-hydroxybenzoic acid using Fe/CeO2-TiO2 catalyst
Authors: Hammedi Tijani , Triki Mohamed , Alvarez Mayra G. , Llorca Jordi , Ghorbel Abdelhamid , Ksibi Zouhaier , Medina Francesc 
Published: April 2019

Abstract
This paper is built on the Fenton-like oxidation of p-hydroxybenzoic acid (p–HBZ) in the presence of H2O2 and 3%Fe supported on CeO2-TiO2 aerogels under mild conditions. These catalysts were deeply characterized by X-ray diffraction (XRD), hydrogen temperature programmed reduction (H2-TPR), transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM) and X-ray photoelectron spectroscopy (XPS). The effect of thermal treatment, pH (2–3, 5, 7), H2O2/p–HBZ molar ratio (5, 15, 20, 25) and reaction temperature (25 °C, 40 °C and 60 °C) on the catalytic properties of supported Fe catalysts are studied. Our results highlight the role of CeO2 and the calcination of the catalyst to obtain the highest catalytic properties after 10 min: 73% of p–HBZ conversion and 52% of total organic carbon (TOC) abatement.
Serum IL-33 Level and IL-33, IL1RL1 Gene Polymorphisms in Asthma and Multiple Sclerosis Patients
Authors: Ahmadi Maryam , Fathi Farshid , Fouladi Saloomeh , Alsahebfosul Fereshteh , Manian Mostafa , Eskandari Nahid 
Published: April 2019

Background:Asthma is a chronic and complex inflammatory disease of the respiratory tract. Also, multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system. Against this background, IL-33 and IL1RL1 play a critical role in autoimmune and inflammatory disorders. Here, we explored the IL-33 serum level and two potential genetic variants in the IL33 gene and its receptor in Iranian asthma and MS patients.Results:The level of IL33 was significantly higher in asthma and MS patients compared to the control group (P< 0.001- P<0.001).The frequency distribution of the genotype in rs1342326 variant of IL-33 gene in patients with asthma, MS and healthy subjects was not significantly different (P>0.05). The frequency distribution of the genotype in rs10204137 variant of IL-33 gene in MS patients and healthy subjects was significantly different (p = 0.013).Methods:This study consisted of asthma (n=140) and MS patients (n=140), and healthy subjects (n=72). Genotyping was carried out in two genetic polymorphisms, rs1342326 variant of IL-33 and rs10204137SNP variant of IL-33 receptor genes, using High- Resolution Melt Real- Time PCR based method. The level of serum IL-33 was also measured using enzyme-linked immunosorbent assay method.Conclusion:Our findings demonstrated that asthma and MS patients had a higher level of IL-33, and IL-33 receptor genetic polymorphism was associated with MS. Further studies in a larger multicenter setting are needed to explore the value of this marker as a risk stratification biomarker.
PROBLEMS AND SOLUTIONS FOR LEASE VALUATION AND ACCOUNTING IN LATVIA
Authors: Arbidane Iluta , Puzule Anita 
Published: April 2019

In the legislation of the Republic of Latvia, leasing transaction accounting complies with the provisions no. 17 of the International Accounting Standard "Leasing", which expired on January 1, 2019. The problem for the lessee in the accounting of leasing transactions is also the introduction of a new standard for companies that prepare annual financial reports in accordance with the requirements of international accounting standards. The aim of the study is to examine accounting problems and assess leasing transactions in Latvia and offer solutions. The study examined the justification for the assessment and accounting of leasing transactions in line with international accounting standards and identified issues of assessment and reporting in Latvia, possible solutions to improve the quality of leasing transactions have been worked out, offering necessary changes in legislation and revision of methodological documents.
SOCIAL AND POLITICAL ETHICS ACCORDING TO THE POLISH PRIEST JÓZEF MAJKA
Authors: Mazur Jan , Majkowski Władysław , Blaise Hameni 
Published: April 2019

The presented text is an attempt to answer the question: how was understood the social and political ethics by the Priest Professor Józef Majka (1918-1993) - one of the leading minds of Catholic social teaching in Poland? It is, of course, about capturing the specificity of this understanding, comparing it with the perspectives of other outstanding authors.
Views of Priest Majka on this subject were included mainly in His book: Social and Political Ethics (1993). In His opinion, this kind of ethics is not only a group of philosophical considerations, but a real attempt to show Catholic social and political ethics. He wrote: "We do not think that it would be possible at all to develop a sensible system of social ethics, especially political, without referring to Christian principles and focusing on the message of the ultimate goal of a man in the Gospel message" (Majka, 1993:12).
It seems that this unambiguous reference to the values and principles of the Gospel, recognizing them as necessary in the construction of a sensible system of social and political ethics allows us to consider His concept as original, thoroughly Christian, marked by a testimony of faith and penetrated by intellectual depth.
It can be stated that the social ethics in the sense of Father Majka is not an ideology, but an integral part of Catholic social science, situating above all in the area of philosophy and theology, where it finds the necessary premises for moral principles and norms.
A Missed Partnership: Russia and the US at the Pacific
Authors: Suslov D. V. 
Published: April 2019

Both Russia and the United States consider the Asia-Pacific as the center of the world economy and politics and assume the active presence in the region crucial for their security and economic development. They did not have such sharp contradictions there as in Europe or in the post-Soviet space. Moreover, some of their interests in the Asia-Pacific Region coincide – such as preventing Chinese hegemony. In this regard, the Russian-American dialogue and cooperation in the Asia-Pacific could be an important pillar of the positive agenda of their relations and a factor in their sustainability. Due to foreign policy inertia, the inflexibility of the agenda of Russian-American relations and the inability of the parties to go beyond the usual pattern, such a dialogue has not even begun. Both sides demonstrated strategic myopia. This weakened the resilience of US-Russian relations in the face of new challenges and accelerated their deterioration and disruption to a new confrontation. The Asia-Pacific has become another theater of the US-Russian systemic confrontation. However, it is in the interest of bothRussia and the United States to separate relations in this region from their general confrontation. This will create favorable conditions for Russia to build a balanced partnership system in the Asia-Pacific, which is necessary to consolidate its role as an independent global great power. In addition, the Russian-American dialogue on the Asia-Pacific, or at least the weakening of their confrontation in this region, will reduce its polarization and prevent tensions between the US and its Asian allies and partners.
South East Asia – In the Priorities of Russian Policy “Pivot to Asia”
Authors: Rogozhin A. A. , Rogozhina N. G. 
Published: April 2019

The foreign policy course “Turn to Asia”, taken by Russia in the early 2000s, was not accompanied, however, by the expansion of interaction with the countries of South East Asia. Despite creating a certain foundation for the development of bilateral and multilateral cooperation, its potential is far from being fully explored. The presence of objective factors hampered its expansion and limited the active involvement of Russia in regional integration processes. The article assesses the prospects for the development of relations with Southeast Asian countries in the context of Russia’s strategic and economic interests in the region and the emerging conditions for their implementation. The authors note that the region has begun to acquire strategic importance for Russia, firstly, for economic reasons, given the dynamics of its growth and the possibility of its involvement in Russian integration projects,secondly, for geopolitical reasons, based on an assessment of its contribution to the formation of a security architecture in the Asia-Pacific region, the principles of which are generally consistent with Russia’s strategic interests, which are realized within the framework of diplomatic and militarypoliticalrapprochement with the countries of South East Asia. The article notes that in building their relations with them, Russia proceeds from the fact that its more active participation in regional affairs may become a factor hindering the establishment of hegemony by one of the great powers in the region, which generally meets the interests of the Southeast Asian countries themselves. At the same time, the authors come to the conclusion that in search of a force capable of ensuring stability in the region, the choice of Southeast Asian countries is unlikely to stop only on Russia, whose real level of political influence in the region is still low. As for economic cooperation Russia with the countries of South East Asia, in recent years, the interaction between them in the framework of bilateral relations has strengthened, primarily in trade. Russia has a positive balance in trade with the countries of the region. However, investment cooperation between them is small in scope and does not play a significant role in the economies of the counterparty countries. The article provides a detailed analysis of the problems that complicate Russia’s economic cooperation with the countries of South East Asia and offers recommendations for solving them, taking into account the specifics of Russian business and the particularities of the local market development. The authors come to the conclusion that the success of Russia’s economic relations with the countries of South East Asia will largely depend on whether we recognize them as equally important partners as China or India. No political steps taken by Russia in South East Asia will lead to a strengthening of its position in the region, if they are not accompanied by its economic expansion.
STUDI EFEKTIVITAS HERBICIDING GULMA LAHAN KERING PADA BERBAGAI METODE PENGABUTAN
Authors: Pramuhadi Gatot , Rais Ibrahim Muhammad Naufan Rais Ibrahim , Haryanto Henry , Johannes Johannes 
Published: April 2019

Studi kinerja pengendalian gulma lahan kering (herbiciding) pada berbagai metode pengabutan perlu dilakukan untuk membantu petani dalam menentukan pengabutan herbisida optimum. Tujuan studi ini adalah menentukan efektivitas pengabutan untuk herbiciding pada berbagai metode pengabutan berdasarkan tekanan cairan dan tekanan udara. Pengabut, atau sprayer, yang digunakan dalam penelitian ini terdiri atas mist blower TASCO MD-150, electric / battery sprayer JITU HX-D18F, dan air blower BOOSTER, sehingga dapat dilakukan penelitian pengabutan dengan 3 perlakuan, yaitu: (1) pengabutan oleh tekanan udara (mist blower), (2) pengabutan oleh tekanan cairan (electric sprayer), dan (3) pengabutan oleh tekanan cairan dan udara (electric sprayer + air blower). Pengujian ketiga metode pengabutan dilakukan di dalam Laboratorium Alat dan Mesin Proteksi untuk menentukan debit pengabutan efektif, lebar pengabutan efektif, diameter droplet, dan kerapatan droplet. Pengujian juga dilakukan di areal lahan kering untuk menentukan kapasitas keluaran dan persentase gulma mati. Analisis dilakukan guna menentukan efektivitas pengabutan pada berbagai metode pengabutan berdasarkan tekanan udara, tekanan cairan, serta gabungan tekanan udara dan cairan. Hasil penelitian menunjukkan bahwa besar debit pengabutan efektif, lebar pengabutan efektif, diameter droplet, dan kerapatan droplet pada perlakuan pengabutan oleh tekanan udara, pengabutan oleh tekanan cairan, dan pengabutan oleh tekanan cairan dan udara berturut-turut sebesar [0.679 liter/menit, 64 cm, 357.95 µm, 294.99 droplet/cm2], [1.039 liter/menit, 80 cm, 430.12 µm, 89.42 droplet/cm2], dan [1.616 liter/menit, 56 cm, 292.83 µm, 55.48 droplet/cm2]. Besar kapasitas keluaran dan efektivitas pengabutan pada perlakuan pengabutan oleh tekanan udara, pengabutan oleh tekanan cairan, dan pengabutan oleh tekanan cairan dan udara berturut-turut sebesar [6.40 liter/ha, 90.44%], [4.02 liter/ha, 74.99%], dan [3.84 liter/ha, 91.81%]. Semakin kecil ukuran (diameter) dropletnya, maka akan semakin mudah droplet masuk ke stomata gulma sehingga menghasilkan efektivitas pengabutan yang semakin besar dan pemberian aplikasi larutan herbisidanya paling hemat.