bluuebunny/crossref_metadata_2025 huggingface dataset:
Simulation and Experimental Investigation of Low Salinity Water Flooding in Sandstone Reservoirs
Authors: Alsaedi H. N. , Han P. , Flori R. E. , Brady P. V. , Alhuraishawy A. K.
Published: April 2018

The effect of water chemistry on water-rock interactions and wettability modification during (low ionic strength) low salinity (LS) waterflooding of sandstone cores containing heavy and light oil was investigated. Results are reported from both coreflooding experiments and through simulation with CrunchFlow Multicomponent Reactive Flow and Transport Software.

For core saturated with high viscosity oil (Core2), flooding with HS water at 25°C resulted in an ultimate oil recovery (UOR) of 48% OOIP, and flooding low viscosity oil core (Core1) with HS water resulted in a similar UOR of 50% OOIP. Upon switching to LS water, the additional incremental UOR was 6% and 4% OOIP at 25°C for high and low oil viscosity, respectively. Flooding the cores with HS water followed by LS at other temperatures (70, 90, and 120°C) generally resulted in an increased incremental UOR due to LS of 2 to 4%. In all of the LS flooding cases, the effluent experienced a jump in pH over just the use of HS water. The LS effluent pH jump in light oil was high, but not as high as that in heavy oil at 120°C, meaning that the heavy oil resulted in more ion exchange. Core3 was allocated for surface reactivity test, the Ca2+ effluent was used for matching the Crunch Flow code.

This experiment involved simultaneous processes including cation exchange, sorption, desorption, precipitation, and dissolution. To identify the processes, the experimental data were analyzed using the CrunchFlow reactive transport model that considers all these processes simultaneously. The simulation work was also presented in this work. We also studied the optimum pH, temperature, and Ca2+ desorption for sandstone. Desorption of Ca2+ associated with pH jump seems to have a large impact on LS water enhanced oil recovery.
The Identification of Calcium Naphthenates in a Heavy Oil Reservoir Using Laboratory Techniques to Assess Solids and Fluid Samples
Authors: Castro Leo , Colmenares Gloria
Published: April 2018

The precipitation of a black, hard scale initially described as coked asphaltene began to occur in a heavy oil reservoir in Bakersfield, CA. The material had never been encountered before, and previously developed analytical techniques were not providing hard answers as to the composition of the materials. Traditional chemistries applied to remediate asphaltic materials were completely ineffective, as were mineral and organic based acids.

The initial samples gathered were somewhat soluble in traditional asphaltene dispersants, and initial applications of those products did yield some favorable results, but only for a short period of time. Several of the wells failed due to the same precipitates as before which seemed to get more tenacious with each subsequent failure. As more wells began to present with this material, it was apparent that the material being observed was not something previously found in the San Joaquin Valley (SJV). Analysis using X- ray diffraction (XRD) and X-ray fluorescence (XRF) yielded results that indicated that the material was primarily organic even though the deposits gathered indicated a very hard scale. Carbon, Hydrogen, and Nitrogen (C,H,N) analysis also provided data inconsistent with the known precipitates in the SJV. Wet Analysis techniques were altered to investigate synergies between chemical types and additional laboratory analysis were conducted to identify the Total Acid Number (TAN) and Specific Carboxylic Acid Number (SCAN™) of the produced fluids.

The laboratory and analytical testing was able to establish several key findings. First of all, the TAN and SCAN data for the affected wells concluded that the material being precipitated was low molecular weight Calcium Naphthenate scale. The wet analysis in the laboratory identified combinations of treatment products that were effective at solubilizing the material. This was an important find because those same products applied as stand-alone treatments were not effective at solubilizing the material, but when combined; were able to return the material to solution. The ongoing investigations also determined thatthe material became more insoluble with aging, indicating that a prompt response to the occurrence could make the difference in a successful chemical application.

This paper provides an important awareness of previously unknown deposits that may occur in producing wells that may not be common to many areas domestically as most of the work published on the subject is from the North Sea, Norway, Great Britain, Western Australia, Bohai Bay, offshore Trinidad, Lousiana, the Gulf of Mexico, China, and Africa (Baugh et al. 2005; Runham & Smith 2009; Shepherd et al. 2006; Turner & Smith 2005; Vindstad et al. 2003).
A Review of Responses of Bulk Gel Treatments in Injection Wells-Part II: Water Responses and Economic Assessments
Authors: Aldhaheri Munqith , Wei Mingzhen , Alhuraishawy Ali , Bai Baojun
Published: April 2018

Polymer bulk gels have been widely applied to mitigate excessive water production in mature oil fields by correcting reservoir permeability heterogeneity. This paper presents a comprehensive review of the water responses and the economic assessments of injection-well gel treatments. The survey includes 61 field projects implemented between 1985 and 2014 and compiled from SPE papers and U.S. DOE reports. Ten parameters were evaluated according to the reservoir lithology, formation type, and recovery process using the univariate analysis, stacked histograms, and scatterplots.

Results indicated that gel treatments have very wide ranges of water injection/production responses and economic indicators. We identified that gel treatments do reduce the water production but not dramatically to really low levels. The water production continues to increase after the proactive treatments applied in undeveloped conformance problems at low water cuts (<50%). Contrarily, the water production decreases after the reactive treatments conducted in developed conformance issues at high water cuts (>50%). When successfully applied, gel treatments averagely reduce the water injection rate by 34% and the water cut by 10%; however, the water cut may also increase by 17%. For developed problems, the water cut may stabilize or increase after the remediation mainly in matrix-rock sandstone reservoirs, especially when small gel volumes are injected (<1000 barrels) into this formation type.

Economically, gel treatments are appraised solely based on the oil production response and both water responses are not considered in the evaluation. Typically, gel treatments have cost of incremental oil barrel of 2$/barrel and payout time of 9.2 months and function for 1.9 years. They have better water responses and economics in carbonates than in sandstones and in unconsolidated and naturally-fractured than in matrix-rock formations; however, they have reverse tends with respect to the gel effective time. The gel effective time significantly decreases with the channeling strength, the aperture of flow channels, and the temperature of injected drive-fluids. Generally, the water production response and economic parameters improve as the injected gel volume increases and the treatment timing advances in the flooding life. For different application environments, the present review provides reservoir engineers with updated ideas about what are the low, typical, and high performances of gel treatments when applied successfully and how other treatment aspects affect the performances.
Positive contribution of the good corporate governance rating to stability and performance: evidence from Indonesia
Authors: Iramani RR. , Muazaroh Muazaroh , Mongid Abdul
Published: April 2018

This paper aims to examine the impact of Good Corporate Governance (GCG) practice on bank stability and performance. Governance is measured using the GCG rating that covers eleven aspects. The authors apply instrumental regression to link governance to performance and stability. The study covers a sample of 150 banks. The result shows that bank stability can mediate bank governance and bank performance. On the determinant of bank performance, it can be concluded that the GCG rating is positive and directly influences bank performance. Bank stability is also positive for bank performance indicating the indirect contribution of the GCG rating to bank performance. NPL, LDR, CAR and bank’s size (LASSET) are all negative and significant. The aim of this paper is to provide strong empirical evidence on the importance of governance and stability for performance. The limitations of this paper are the size of the sample and that it only covers public banks which are theoretically required to apply better governance in all aspects of their business by the Capital Market Authority.
Assessment of future rainfall for the Brahmani-Baitarani river basin – practical implications of limited data availability
Authors: Dahm R. J. , Sperna Weiland F. C. , Singh U. K. , Lal M. , Marchand M. , Singh S. K. , Singh M. P.
Published: April 2018

Severe floods are common in the Brahmani-Baitarani river basin in India. Insights into the implications of climate change on rainfall extremes and resulting floods are of major importance to improve flood risk analysis and water system design. A wide range of statistical and dynamical downscaling and bias-correction methods for the generation of local climate projections exists. Yet, the applicability of these methods highly depends on availability of meteorological data. In developing countries, data availability is often limited, either because data do not exist or because of restrictions on use. We here present a climate change analysis for the Brahmani-Baitarani river basin focusing on changes in rainfall using data from three GCMs from the Fifth Coupled Model Intercomparison Project (CMIP5) that were selected based on their performance. We apply and compare two widely used and easy to implement bias-correction methods. These were selected because reliable open historical meteorological datasets required for advanced methods were not available. The results indicate likely increases in monsoon rainfall especially in the mountainous regions and likely increases in the number of heavy rain days. We conclude with a discussion on the gap between state-of-the-art downscaling techniques and the actual options in regional climate change assessments.
Astlingen – a benchmark for real time control (RTC)
Authors: Schütze Manfred , Lange Maja , Pabst Michael , Haas Ulrich
Published: April 2018

This contribution serves two purposes. (1) It presents an updated version of the Astlingen example developed by the working group ‘Integral Real Time Control’ of the German Water Association (DWA), which serves as a benchmark example for the setup and evaluation of real time control strategies. As this benchmark is also intended for educational use, it demonstrates a simple RTC algorithm, illustrating the main concepts of RTC of drainage system. (2) The paper also encourages the preliminary analysis of the potential feasibility and benefit of a temporal increase of inflow to the wastewater treatment plant (WWTP) before analysing the WWTP behaviour in detail. For the present example, RTC within the sewer system alone led to almost the same reduction of overflow volume as permitting the inflow to the WWTP to be increased for 6 h within any 24 h, if at all permitted.
Transcriptome Analysis of Orbital Adipose Tissue in Active Thyroid Eye Disease Using Next Generation RNA Sequencing Technology
Authors: Lee Bradford W. , Kumar Virender B. , Biswas Pooja , Ko Audrey C. , Alameddine Ramzi M. , Granet David B. , Ayyagari Radha , Kikkawa Don O. , Korn Bobby S.
Published: April 2018

Objective:

This study utilized Next Generation Sequencing (NGS) to identify differentially expressed transcripts in orbital adipose tissue from patients with active Thyroid Eye Disease (TED) versus healthy controls.

Method:

This prospective, case-control study enrolled three patients with severe, active thyroid eye disease undergoing orbital decompression, and three healthy controls undergoing routine eyelid surgery with removal of orbital fat. RNA Sequencing (RNA-Seq) was performed on freshly obtained orbital adipose tissue from study patients to analyze the transcriptome. Bioinformatics analysis was performed to determine pathways and processes enriched for the differential expression profile. Quantitative Reverse Transcriptase-Polymerase Chain Reaction (qRT-PCR) was performed to validate the differential expression of selected genes identified by RNA-Seq.

Results:

RNA-Seq identified 328 differentially expressed genes associated with active thyroid eye disease, many of which were responsible for mediating inflammation, cytokine signaling, adipogenesis, IGF-1 signaling, and glycosaminoglycan binding. The IL-5 and chemokine signaling pathways were highly enriched, and very-low-density-lipoprotein receptor activity and statin medications were implicated as having a potential role in TED.

Conclusion:

This study is the first to use RNA-Seq technology to elucidate differential gene expression associated with active, severe TED. This study suggests a transcriptional basis for the role of statins in modulating differentially expressed genes that mediate the pathogenesis of thyroid eye disease. Furthermore, the identification of genes with altered levels of expression in active, severe TED may inform the molecular pathways central to this clinical phenotype and guide the development of novel therapeutic agents.
MODERN TRENDS IN ORTHOPEDICS: REVISION OF THE ACETABULAR AND FEMORAL COMPONENTS
Authors: Tikhilov R. M. , Shubnyakov I. I. , Kovalenko A. N. , Tsybin A. V. , Sementkovskiy A. V. , Karpukhin A. S. , Bashinskiy O. A.
Published: April 2018

The revision rate of total hip arthroplasty (THA) is increasing with growth of number primary THA. The problems of revision procedures are associated with high technical demands and high incidence of poor results. Besides of medical problems the cost of revisions has impact on health care system even in developed countries. With improving of funding Russian Health Care System there is significant growth of number of total hip arthroplasties in Russia. Hence it is interesting to find out about world experience, forecasts of experts involved in the issue and current trends in revision hip arthroplasty.
FIRST EXPERIENCE OF TRANSVERTEBRAL MICROPOLARIZATION OF THE SPINAL CORD IN THE COMPLEX TREATMENT OF UPPER LIMBS DEFORMITIES IN PATIENTS WITH ARTHROGRYPOSIS
Authors: Rozhdestvenskiy V. Y. , Agranovich O. E. , Soboleva J. L. , Trofimova S. I.
Published: April 2018

From 2010 till 2011 transvertebral micropolarization of the spinal cord was applied in 14 patients with arthrogryposis and upper limb deformities in the department of arthrogryposis of the Turner Scientific and Research Institute for Children's Orthopedics. Effectiveness of the method was objectively evaluated in accordance with neurophysiological study. In 4 patients improvement of upper limb motor activity as well as factors of electrogenesis of the tested muscles and peripheral nerves were noted upon the course of TVMP. The first application of transvertebral micropolarization in patients with arthrogryposis associated with damage of upper extremities showed the suitability of its use in complex treatment of this pathology and carrying out further researches in this direction.
RESULTS OF PRIMARY AND REVISION REVERSE SHOULDER ARTHROPLASTY
Authors: Peretyaka A. P. , Maykov S. V.
Published: April 2018

There is a report of two clinical cases of reverse shoulder joint replacement. In the first case, reverse arthroplasty performed in post-traumatic avascular necrosis of the humeral head. In the second case, the arthroplasty with reverse prosthesis was performed because of insufficiency of rotator cuff, and due to this, dislocation of unipolar shoulder. In both cases we achieved good functional outcome.
COXA-VERTEBRAL SYNDROME AND ITS SIGNIFICANCE IN HIP ARTHROPLASTY (REVIEW)
Authors: Denisov A. O. , Shilnikov V. A. , Barns S. A.
Published: April 2018

Lumbosacral spine and hip joints is a complex physiological functions of the co-operation of a large number of anatomical structures. Lesions of the links in the system can mutually afflict each other. Combined pathology of the hip and lumbosacral spine is called hip-spine syndrome, or coxa-vertebral syndrome. Symptoms of the joint and spine are very similar and only a careful examination and clinical examination may find the differences. As the disease progresses the hip increases the restriction of movement, there is a contracture of the limbs in a vicious position, which leads to an increase in tilt of the pelvis, increased lumbar lordosis and to functional shortening of limbs on the affected side. This gives rise to functional impairment, and then strain the joints of his spine and disease - osteochondrosis and scoliosis. After the successful operation of total hip replacement is often progressive clinical lesions of vertebral segment, which is manifested pain and is often offset by the results of arthroplasty as the restoration of movement in the hip joint, and the change in length limb after arthroplasty leads to rupture formed a functional stereotype change in the mobility of the lumbar spine, pelvis regression bias that causes the dynamic compression spinal nerve root. Depending on the duration of the existence, severity and nature of changes in the pelvic girdle is suitable correction of equipment replacement surgery, including, for example, in some cases, deliberate shortening or lengthening the preservation of the lower extremity, offset change, etc.
REGIONAL HEMODYNAMICS IN DIFFERENT TYPES OF SURGICAL TREATMENT OF DIAPHYSEAL FRACTURES OF THE SHIN BONE
Authors: Pisarev V. V. , L’Vov S. E. , Vasin I. V. , Tikhomolova E. V.
Published: April 2018

82 patients were examined with the tibia fractures. Osteosynthesis with the help of plates was executed by 40 patients, osteosynthesis with the help of hinges with blocking was executed by 42 patients. The methods of duplex scanning of vessels and reovazografic inspection were used for studying of the blood circulation in tibia. Researches were conducted on the 5th and the 10th days in 1, 2, 3 and 4 months after the operation. It was established that the surgical treatment of the tibia fractures without any difference in using various methods of the broken fragments fixation in the early postoperative period (first 10 days) leads to a decrease in the level of arterial blood flow as a result of the vessels hypotonia. The absence of postoperative immobilization and early loading lead to the more rapid restoration of the initial indices of hemodynamics. Blood flow changes are least expressed and more rapidly restored during the closed reposition osteosynthesis with the help of hinges. The reaction of the vascular system of periosteum in the process of the regeneration of the tibia tissues does not depend on the method of the surgical treatment.
RESULTS OF SURGICAL TREATMENT OF HAGLUND’S DESEASE
Authors: Kardanov A. A. , Bualy N. M. , Rusanova V. V. , Nepomyashchiy I. S.
Published: April 2018

Objectives. The article presents the results assessment of open calcaneal excision compared to percutaneous excision of patients with Haglund’s disease. Materials and methods. Twenty-one patients (26 feet) underwent the surgical treatment during the period from 2010 to 2012. The clinical diagnosis was confirmed by axial load radiography estimated with “Fowler-Philip” and “posterior pitch lines” methods. Eight feet were treated with open calcaneal excision and 18 feet - with percutaneous procedure. The mean duration of follow-up was 21,8 months. Clinical evaluation criteria were deformity and/or bursitis recurrence, tenderness, pain by wearing shoes, return to the sport training, patient satisfaction, presence/absence of major complications. Results. Good results were reported for 21 patients; fair results - for 4 patients; and poor results - for one patient. No significant differences in results depending on the method of intervention have been identified.
Evolution of treatment of of the proximal humerus fractures (review)
Authors: Kogan P. G. , Vorontsova T. N. , Shubnyakov I. I. , Voronkevich I. A. , Lasunskiy S. A.
Published: April 2018

The article in generalized form acquaints with the publications devoted to the bases of proximal humeral fractures treatment. A brief digression on anatomy and biomechanics of the humeral joint allows to consider the main morphological features of it. The most commonly used classification of proximal humeral fractures concisely classify many types of damage. According to the clinical and anatomical characteristics of fractures tracked the historical aspect, the development and the current state of the most common methods of treatment. In his review collected works authors share their experience in the application of methods. It allows to further the perspective directions.
To a question about the history of surgical treatment of peripheral nerves injuries
Authors: Zolotov A. S. , Pak O. I.
Published: April 2018

The article is devoted to the history of the methods of surgical treatment of the peripheral nerve injuries. The analysis of domestic and foreign publications on this question has shown the basic surgical operations used today for nerve’s repair were developed and introduced by surgeons - innovators in second half of 19th century. These operations had unequal popularity in a different historical period. The subsequent generations of surgeons basically have improved earlier invented surgical procedures.
Femoral tunnel formation using reference anatomical structures of the femoral intercondylar space during anterior cruciate ligament reconstruction
Authors: Malanin D. A. , Suchilin I. A. , Demeschenko M. V. , Tscherezov L. L.
Published: April 2018

Purpose: a clinical rationale for using reference structures of the intercondylar space to determine the femoral footprint of the ACL. Material: sixty one patients with ACL deficiency who underwent anatomic anterior cruciate ligament reconstruction using single-bundle «bone-patellar tendon-bone» autograft. Methods: radiography and radiometry, computed tomography, arthroscopy, arthrometry. Results: lateral intercondylar and lateral bifurcate ridges can be verified arthroscopically with a frequency of 94% and 48%. Orientation of the femoral tunnel formed using reference structures is more horizontal in coronal plane and has increased sagittal slope compare with traditional technique. Conclusions: The lateral intercondylar and lateral bifurcate ridges can be used as reference structures for femoral tunnel formation during anatomical anterior cruciate ligament reconstruction.
The comparative analysis of efficiency of the early and late reconstructive microsurgical operations at patients with extensive posttraumatic defects of upper extremities
Authors: Rodomanova L. A. , Kochish A. Y.
Published: April 2018

Purpose: to conduct a comparative analysis of anatomic-functional treatment outcomes in patients with posttraumatic defects of upper extremity tissues according to the time of reconstructive microsurgical operations. Material and methods. The main study group included 190 patients, who have undergone early reconstructive-plastic operations using microsurgery techniques at R.R. Vreden Russian Research Institute of Traumatology and Orthopedics from 1990 through 2009. Late reconstructive-plastic operations on the upper extremity over the same period have been performed in 206 patients, who constituted the control group. In the main group, island flaps grafting was 3.6 times more frequent, than their free transplantation. Conversely, in the control group the latter type of surgery was 1.7 times more frequent. Outcomes. The main patient group demonstrated 82.9% excellent and favorable outcomes, whereas in the control group such outcomes were achieved only in 60.7% patients, the disability rate being three times higher in the control patients. Conclusion. Early use of operations of free axial tissue complexes transplantation and island flaps grafting allows for significant increase in excellent and favorable outcomes, decrease in the complication rate and unfavorable outcomes, which correspondingly reduces the disability rate.
Analysis of complications after knee replacement in tumor lesions (20-year experience)
Authors: Zasulskiy P. Y. , Kulyaba T. A. , Ptashnikov D. A. , Grigoriev P. V. , Mikailov I. M.
Published: April 2018

Purpose - retrospective analysis of the causes of complications after knee replacement in tumor lesions depending on the type of implants and classification of complications by severity. Material and methods. The outcomes of operations of knee replacementin tumor lesions performed in 161 patients in the period between 1993 and 2012 were studied. All patients were divided into two groups. The first group included 68 (42.2%) patients, whom the Russian endoprostheses were implanted. The second group included 93 (57.8%) patients, who were operated using modern foreign endoprostheses. Results. 74 (45.9%) patients underwent revision surgery due to the complications in different terms after primary oncologic replacement, with 67 (90.5%) requiring a removal of the primary endoprosthesis. By severity, all complications were divided into 5 types. Infections were the most frequent complications of knee replacement resulting in revision surgery (19 cases, 25.7% of all revision operations). Conclusion. Improvement of oncological systems quality lead to the decrease in the rate of revision surgery due to mechanical reasons. However, the complication rate after knee replacement remains higher than after conventional arthroplasty.
Unexplained pain after total knee arthroplasty
Authors: Parratte S. , Kornilov N. N. , Thienpont E. , Baldini A. , Tikhilov R. M. , Argenson J. , Kulyaba T. A.
Published: April 2018

Although total knee arthroplasty (TKA) improves function and reduces pain for the large majority of the patients, a few continue to have pain and require investigation. The causes of dysfunction and pain after total knee arthroplasty can be described as intrinsic (intra-articular) or extrinsic (extra-articular) sources of pain. For the majority of the cases, following a complete evaluation protocol, the cause of pain can be identified and a specific treatment can be applied, however occasionally there remains a group of patients with unexplained pain whose management is difficult. It was our hypothesis that revising a TKA without pre-operative diagnosis of the failure is not worth. Therefore, the aimed of this review was to: 1) analyse the results of revision TKA for unexplained pain, and 2) described the potential solutions for an alternative conservative management of the painful TKA.
Flap surgery in treatment of patients with pathology of ankle
Authors: Kutyanov D. I. , Rodomanova L. A.
Published: April 2018

Objective: to determine the capabilities and perspectives of flap surgery in treatment of patients with traumas and diseases of ankle joint region. Material and methods. The results of surgical treatment of 88 such patients. All the patients were treated in the Vreden Russian Research Institute of Traumatology and Orthopedics within the period from 2000 to 2011. All the patients had pedicled flap transfer (46 cases) or free tissue transfer (45 cases). 11 patients had additional need in other open orthopedic operations of ankle joint. Besides this, scientific works dealing with the studied problem have been analyzed. Results and conclusions. It has been stated that flap surgery is predominantly used as the only and exhaustive method of treatment of such patients (87,5%). In these situations pedicled flap transfer and free tissue transfer tend to be used in comparatively equal quantities. Flap surgery is now seldom used as a component of complex surgical treatment. It is used only in some cases of bone reconstruction of distal tibia by Ilizarov bone transport, in some cases of tumors of ankle joint as well as in some cases of local infectious complications after internal fixation and total ankle arthroplasty. Patients with the pathology of this kind have a high need in free tissue transfer (from 66,7% to 83,3%). Progressing technology of total ankle arthroplasty will contribute to the frequency of use of flap surgery for patients with pathology of ankle joint.
DO WE KNOW ALL ABOUT PREVENTION OF VENOUS THROMBOEMBOLISM AFTER MAJOR ORTHOPEDIC SURGERY?
Authors: Bozhkova S. A. , Kasimova A. R. , Nakopia V. B. , Kornilov N. N.
Published: April 2018

Venous thromboembolic events including deep venous thrombosis of lower limbs, tromboembolia of the pulmonary artery as well as non-symptomatic venous thromboembolic events are identified via venography and are considered to be potentially life-threatening implications after such major surgeries as total hip and knee arthroplasty. The need for tromboprophylaxis is well realized at present, and there is a wide range of medications with the indication of post-surgical prophylaxis of venous thromboembolic events.In this report the attempt has been made to carry out the comparative analysis of various currently used functional national guidelines on prophylaxis of venous thromboembolic events after total hip and knee arthroplasty. Moreover, having done the research in the systems PubMed (http://www.ncbi.nlm.nih.gov/pubmed, 2007–2017 гг.) and eLIBRARY (http://elibrary.ru, 2007–2017 гг.) the data of the last 10 years of experience in administration of oral anticoagulants has been collected and thoroughly analyzed (dabigatran etexilat, rivaroxaban, apixaban) and antiaggregant (acetylsalicylic acid) in clinical practice, besides comparative data has been also collected based on results obtained from laboratory control of anticoagulative effect of thrombin and x-factor direct inhibitors, even though the opportunities that laboratory control can provide are so far highly limited.At present the efficacy of pharmacological prophylaxis of venous thromboembolic events after total hip and knee arthroplasty is absolutely proven, and the issues concerning the safety of anticoagulants administration are the main focus. These issues frequently require personalized approach to selection of medication for tromboprophylaxis in accordance with the patient’s characteristics and the type of surgery chosen. All these aspects should become the focus for further research.
ACETYLSALICYLIC ACID FOR THROMBOEMBOLISM PROPHYLAXIS. DOES IT REALLY WORK OR IT’S A GRIMACE OF THE EVIDENCE-BASED MEDICINE?
Authors: Sereda A. P.
Published: April 2018

Acetylsalicylic acid administration for pharmaceutical prophylaxis of thromboembolic complications is a highly controversial and debatable issue. Debates continue, and, in particularly, opposite views of ACCP recommendations (8th and 9th revisions), Russian clinical recommendations and AAOS guideline were discussed during the Vreden’s Readings conference in 2017 and motivated the authors to compile the present analytical review. The authors attempted to explain initial ban for use and later on sudden advisable use of acetylsalicylic acid for thromboembolism prophylaxis. There can be no unique answer to such a problem due to ambiguity of current state of evidence-based medicine and current system for defining the clinical guidelines.
CLASSIFICATION FOR KNEE JOINT BONES DEFECTS IN PATIENTS WITH CONTRINDICATIONS TO ARTHROPLASTY
Authors: Solomin L. N. , Korchagin K. L. , Rozbruch R. S.
Published: April 2018

There are many classifications of long bone defects. Some of them are designed from the external fixation background standpoint with the aim to define a particular Ilizarov technique. Another group of classifications is aimed at determining the tactics of reconstructive surgery for segmental defects of long bones. However, combinations of defects at articular ends are not considered. AORI classification (and the analogs) is intended to address issues related to arthroplasty and it does not consider diaphyseal defects.The aim of the present study was to develop a functional classification for the knee joint bone defects (KJBD) for cases when there are contraindications to arthroplasty.For this purpose the authors analyzed knee joint x-rays of 71 patients with KJBD and contraindications to arthroplasty. Defects extent, shape and anatomical localization in tibia and femur were evaluated.Results. This allowed to identify 4 types of defects depending on the location and size. We determined four types of defects, depending on its location and severity: I — epiphyseal, II — epimetaphyseal, III — local epimetaphyophyseal, IV — extensive epimetaphyophyseal.Conclusion. In contrast to other classifications the proposed one takes into consideration the combination of defects in femur and tibia when it is impossible to perform the arthroplasy and is designed to develop an algorithm for treating this group of patients.
Gestión del riesgo y atención de desastres con Profesionales Oficiales de la Reserva del Ejército colombiano
Authors: Herrera Cepeda Gonzalo , Vivas Cortésa Omar
Published: April 2018

El artículo presenta los resultados de la investigación “Condiciones institucionales de participación de Profesionales Oficiales de la Reserva (POR) en tareas de manejo de desastres”, cuyo objetivo fue determinar qué marcos normativos y capacidades institucionales facilitan o limitan la participación de los POR en la Gestión del Riesgo de Desastres del Ejército. Para esto identificó el marco normativo, el sentido del cambio y el ambiente estratégico a través de una metodología cualitativa, con investigación documental y entrevistas. La base teórica fue el diseño institucional y de capacidades, aunado a la teoría de gestión del riesgo. Como resultado se estableció que en varias regiones del país existe un contingente humano profesional en disciplinas útiles para enfrentar desastres y que, si bien actualmente tiene una baja vinculación, es posible adaptar los procedimientos para emplear sus capacidades. Finalmente, se concluyó que el Ejército Nacional evoluciona hacia un Ejército multimisión y que protocolizar esta participación es una oportunidad más de cambio institucional.
La evolución del diseño inteligente: entre religión y ciencia
Authors: Sandino Vargas Enrique , Caccamo Marta , Hashim Sumaya , Eng Oskar
Published: April 2018

Este trabajo evalúa el diseño inteligente (DI) como una pseudociencia. La ciencia ha incorporado muchas definiciones; asimismo la pseudociencia. Ambas han sido discutidas en diversos ámbitos. En la esfera política, están caracterizadas por una pluralidad de conflictos de visiones en discusión. No existe una sola filosofía de la ciencia, consecuencia, tampoco una sola metodología. Los criterios de demarcación no son claros. Esto se torna problemático al evaluar el diseño inteligente. Los científicos no conciben incluir el diseño en el campo científico en su pretensión de que carece de cientificidad. Aquí, seleccionamos un conjunto de definiciones de pseudociencia para evaluar si el DI satisface los criterios de demarcación. Dado que nuestra unidad de análisis es el DI, se plantea la pregunta si el diseño inteligente es una pseudociencia, o si se puede caracterizar el diseño inteligente como una o varias formas de pseudociencia.
El destino de los civiles en la nueva guerra justa. Una perspectiva canadiense
Authors: Imbeault Marc
Published: April 2018

El artículo introduce de forma somera el concepto de “guerra justa” e intenta ubicar la ética profesional canadiense con fundamento en la dignidad humana, el servicio de Canadá y la obediencia a la autoridad legal, en el contexto de la intervención en Afganistán. La discusión de textos oficiales que datan de la época en que la implicación de Canadá había sido la más intensa, y la de un caso particular, permite demostrar la “tensión natural” entre la necesidad de obtener resultados y la de respetar normas éticas superiores.
FIXED POINT THEOREMS FOR TWO PAIRS OF MAPPINGS IN PARTIAL METRIC SPACES
Authors: Popa Valeriu , Patriciu Alina-Mihaela
Published: April 2018

In this paper, a general fixed point theorem for two pairs of weakly compatible mappings satisfying a - implicit relation different from the type from [16] is proved. As applications, we obtain the sufficient conditions for the existence of fixed points for a sequence of mappings in partial metric spaces.
FIXED POINTS AND STABILITY OF A CLASS OF NONLINEAR DELAY INTEGRO-DIFFERENTIAL EQUATIONS WITH VARIABLE DELAYS
Authors: Gabsi Hocine , Ardjouni Abdelouaheb , Djoudi Ahcene
Published: April 2018

In this work we study a class of second order nonlinear neutral integro-differential equations    x(t)+f(t,x(t),x(t))x(t)+∑_{j=1}^{N}∫_{t-τ_{j}(t)}^{t}a_{j}(t,s)g_{j}(s,x(s))ds    +∑_{j=1}^{N}b_{j}(t)x′(t-τ_{j}(t))=0,with variable delays and give some new conditions ensuring that the zero solution is asymptotically stable by means of the fixed point theory. Our work extends and improves previous results in the literature such as, D. Pi pi2,pi3 and T. A. Burton b12. An example is given to illustrate our claim.
ON SOME SUBSETS OF SOFT WEAK STRUCTURES
Authors: Abd El-latif Alaa Mohamed
Published: April 2018

The main purpose of this paper, is to list the main properties which give the deviations between soft weak structure [15] and thats in soft topological spaces [14] and supra soft topological spaces [6], which is supported by counter examples. Moreover, we introduce and study the basic properties of the soft structures π(swo), σ(swo), α(swo), β(swo) and ρ(swo). It has been pointed out in this paper that many of these parameters studied have, in fact, applications in real world situations and therefore I believe that this is an extra justification for the work conducted in this paper.
APPROXIMATION THEOREMS FOR LIMIT $(p,q)-$BERNSTEIN-DURRMEYER OPERATOR
Authors: Finta Zoltan , Gupta Vijay
Published: April 2018

In the present paper, using the method developed in \cite{Finta1}, we prove the existence of the limit operator of the slight modification of the sequence of $(p,q)$-Bernstein-Durrmeyer operators introduced recently in \cite{Gupta1}. We also establish the rate of convergence of this limit operator.
ON COINCIDENCE POINT THEOREM FOR NEW CONTRACTIVE CONDITION WITH APPLICATION
Authors: Deshpande Bhavana , Handa Amrish
Published: April 2018

We establish coincidence point theorem for g-non-decreasing mappings satisfying new contractive condition on partially ordered metric spaces. With the help of obtain result, we show the formation of the coupled coincidence point theorem for generalized compatible pair of mappings F, G:X²→X. Furthermore, an example and an application to integral equation are also given to show the usefulness of obtained results. Our results generalize, modify, improve and sharpen several well-known results.
SOME NEW OSTRWOSKI’S INEQUALITIES FOR n-TIMES DIFFERENTIABLE MAPPINGS WHICH ARE QUASI-CONVEX
Authors: Meftah Badreddine
Published: April 2018

Some new Ostrowski's inequalities for functions whose $n^{th}$ derivativesare quasi-convex are established.
ON COMMON FIXED POINTS THEOREMS FOR ORDERED $F$-CONTRACTIONS WITH APPLICATION
Authors: Nazam Muhammad , Acar Ozlem
Published: April 2018

We study the conditions for existence of a unique common fixed point of ordered $F$-contractions defined on an ordered partial metric space; in particular, we present a common fixed point result for a pair of ordered $F$-contractions satisfying a generalized rational type contractive condition and discuss its consequences. It is remarked that the notion of an $F$-contraction in partial metric spaces is more general than that in metric spaces. As application of our findings, we demonstrate the existence of common solution of the system of Volterra type integral equations.
Case Based Reasioning (CBR) for Medical Question Answering System
Authors: Basuki Setio , Rizky Alfira , Wicaksono Galih Wasis
Published: April 2018

In this research, the researchers implement a medical Question Answering System (QAS), a complaint system in the form of sentences or paragraphs of questions about the complaint (illness) suffered by a person. Afterwards, the system will give answer to the questions with answers in the form of diagnosis based on the system knowledge. The system in this study has knowledge of the system obtained based on Case Based Reasoning (CBR) method from the previous cases stored in the database. When there is a new case, the system will perform a matching process using CBR and Sorenson Coefficient calculations to find out which the previous cases have the highest percentage of matches with the new case. Then the selected previous cases will be taken and given to the new case. Testing is processed by using 2 types of testing, expert validation testing with result of 28 data of appropriate test from 30 test data and accuracy testing resulting of 93,33% from the appropriate test data.
Monitoring Fuel Oil Based Radio Frequency Identification (RFID) Client
Authors: Septiantono Dezar , Zulfatman Zulfatman , Priyanto Budhi
Published: April 2018

Motorcycles are a means of transportation which plays an important role in people's lives. One of the existing problems on the motorcycle is the indicator system or often called by speedometer, an indicator system showing the value of the volume of fuel oil. In fact, the sensor unit used by the indicator is not a volume sensor but the surface of the fuel sensor in the form of mechanical potentiometers. This equipment irregularly measures oil tank so that the mathematical approach to formulate the relationship between surface height and gasoline volume will be difficult. Therefore, to interpret the data manipulation done by comparison method is the method of comparison experiment and calculation. This method is applied in this research due its more superior accuracy and efficiency. This research designs hardware for monitoring fuel oil based on Radio Frequency Identification (RFID) using AT mega 328 as main controller and LCD to display driver’s identity sent by General Packet Radio Service (GPRS). The sensor used is a buoy sensor, measuring the fuel volume between 0.20 liters to 9.55 liters. It is known that the comparative method has an average rate of 16.1%, in measuring the fuel volume between 0.20 liters to 3.68 liters. It is known that the comparative method has an average rate of 17.9%. On measuring the fuel volume between 0.20 liters to 3.43 liters, the comparative method having an average rate of 7.2% is employed. Based on the test results, the best comparison method in comparison with the interpolation method with the average rate of smallest 7.2% is determined.
Comparative Analysis of Tracking Objects Using Optical Flow and Background Estimation on Silent Camera
Authors: Supriyatin Wahyu , Ariestya Winda Widya , Astuti Ida
Published: April 2018

Tracking and object is one of the utilizations on the field of the computer vision application. Object tracking utilization as a computer vision in this study is used to identify objects which exist within a frame and calculate the number of objects passing within a frame. The utilization of computer vision in various fields of application can be used to solve the existing problems. The method used in object tracking is by comparison between optical flow estimation method with background method. The test is conducted by using a still camera for both methods by making changes to the parameter values used as a reference. The results of the tests, conducted on the three video objects by comparing the two methods show a Total Recorded Time better than those of the background estimation method, being smaller than 100 seconds. Testing both methods successfully identifies the object tracking and calculates the number of passing cars.
Functional Requirement Design for Optimizing Tourism Promotion of DKI Jakarta based on Descriptive Research Method
Authors: Wastam Jumail , Prasetya Eka Budhy , Latifah Retnani
Published: April 2018

This study presents data collected as sample from two places of tourism spots, TMII and MONAS. Furthermore, additional data has also been collected from public places such as campuses to support current data collection. The data is collected in order to recognize the visitors’ responses according to their tourism information needs in preparing their traveling activities. Descriptive research method adopted using self-designed questionnaires focusing on “what” is applied to investigate the questions which are related with the topic of the study. The results of data analysis would be referred as foundation in designing the system functionalities required to develop an application for the future development. Furthermore, more data is observed from some data resources such as Central Bureau of Statistics (BPS) of DKI Province and Global Destination Cities Index to recognize the performance of DKI Jakarta in receiving visitors within the last three years compared to other cities in some neighboring countries such as Bangkok, Kuala Lumpur and Singapore. Thirty respondents are involved in the study to identify what potential information which can be explored. The information which is related to visitors’ travel preparation becomes imperative to be analyzed to optimize the tourism promotion. Descriptive research method helps researchers in obtaining data on functional needs according to the current state of society, in the scope of travel activities and preparations. The system design viewed from the functional needs shows what people can do based on the results of the analysis.
Business Process Assessment with Balanced Scorecard and Framework COBIT
Authors: Nagata Harryston , Andry Johanes Fernandes
Published: April 2018

Manufacturing company is the company that produces household appliances based on plastic / plastic houseware, this company has applied information system but there is often problem in sales department that is when processing of data discount, data obtained wrong and not according to which have been determined. Therefore, the author is given the task to audit the information system on the company. The author uses the COBIT and Balance Scorecard framework, the COBIT domain used is the Plan and Organize (PO) and Acquire and Implement (AI), in the PO Domain the author uses PO4 sub-domains (Define the IT Processes, Organization and Relationships) Communications management aims and direction) and PO 9 (Assess and Manage IT risks) whereas in AI Domain used is AI4 (Enable Operation and Use), Balanced Scorecard Perspective used in this research is Internal Business Process, which focuses on business process assessment company and business goals have been in line with IT goals. The results from this research is still many deficiencies that exist in company especially at risk management of IT proven and IT risk management that have not managed maximally so that can be developed in the future.
Understanding Corporate Life-Cycles
Authors: Sawagvudcharee Ousanee , Yolles Maurice , Fink Gerhard , Iles Paul , Bunchapattanasakda Chanchai , Limpabandhu Buncha
Published: April 2018

This paper considers the nature of the dominant corporate paradigm, its change, failures or successes, and its relationship with the homeostatic organization. There is a popular way of understanding the dynamics of organizational change and that is through the pre-configured sequence of stages in a corporate life-cycle. Through there are a number of competing models for this kind of analysis. In all of them, the sequence of stages is defined by that which configures the life-cycle deterministically. However, there is little discussion given for how these models of organizations shift between stages, and none appear to dominate in the literature. A major criticism of these models is that they do not represent complex organizational processes of change. Therefore, this paper represents an alternative model, called â€œthe paradigm life-cycleâ€, which is connected to the homeostatic processes that maintain an organization, and which is, in principle, capable of generating corporate life-cycles under conditions of complexity.