bluuebunny/crossref_metadata_2025 huggingface dataset:
Integrated Asset Modelling: Tips, Tricks and Pitfalls
Authors: Myasnikov Alexey , Mikhin Alexey , Kamartdinov Marat
Published: October 2019

The article demonstrates features of using an Integrated Asset Model (IAM). The description is given for assessing of model reliability with main criteria emphasis. Also acceptable deviations for those criteria are analyzed. The solutions are proposed for problems arising when IAM is used for forecast calculation. A methodical approach is presented that allows to verify production data and to calibrate network elements in fast and effective way. The paper shows IAM updating algorithm which allows to perform calculations with the necessary accuracy.
Reservoir Characterization, Incremental Production Forecasting and Decision Making of an Extended Reach Well Project Under Uncertainty
Authors: Mantatzis Konstantinos , Haake Martin , Clemens Torsten , Steineder Dominik
Published: October 2019

Costs for off-shore extended reach wells can be substantial. To decide if and where to drill, the uncertainties in the reservoir geometry (e.g. top reservoir), rock parameters (e.g. porosity, permeability), saturations (e.g. free water level, saturation height) and dynamic parameters (e.g. relative permeabilities, viscosities) have to be taken into account.

Extensive reservoir characterization under uncertainty was performed and the geometrical and rock parameters were captured by generating thousands of realizations. These realizations were clustered in Multi-Dimensional Space using a dynamic response. As dynamic response, the oil production of "dummy" wells was chosen. The resulting 100 cluster centroids were transferred to dynamic simulation.

Next, the saturation and dynamic parameter ranges were introduced. Latin Hypercube sampling and Differential Evolution lead to an ensemble of history matched models that was used for forecasting of incremental oil production from an extended reach well compared with a base case.

For decision analysis, the workflow comprised generating of various development options (e.g. horizontal, slanted, multi-lateral well). Then, the incremental cumulative oil production of the various development options compared with the base case was calculated. Next, the incremental Net Present Value of the most promising development options was determined.

The selection of the development option was based on the Expected Utility and ensuring that the Probability of Economic Success hurdle was met.

To evaluate the potential to further increase the project value, a distance based Generalized Sensitivity Analysis of parameters on the project economics was performed. The results showed that no further measurement could be conducted in the field to reduce the parameter range, the selected development option has an Expected Monetary Value of 51.16 mn $, an Expected Utility of 49.42 mn $ and the Probability of Economic Success is 81.1 %.
Improving the Efficiency of Carbonate Reservoir Development on the Basis of Fracture Distribution According to Permanent Monitoring Data of the Kharyaga Field
Authors: Panarina Ekaterina , Kazakov Nikolay , Zoshchenko Oleg , Aleschenko Anton
Published: October 2019

Development of carbonate reservoir usually presents a lot of challenges in terms of reservoir uncertainty and high lateral and vertical heterogeneity. Therefore, such reservoirs require permanent monitoring, largely dependent on understanding interaction between wells.

Tracer and well tests are commonly used to determine parameters of interference between wells. A large amount of this data has been accumulated at the Kharyaginskoye field. However, the available data has not been fully applied.

The continuous bottomhole pressure monitoring data using PDG (permanent downhole gauges) enabled to determine interaction parameters not only on qualitative, but also on quantitative level, and were used to update existing reservoir model, which allowed for better history matching and improved predictive ability.

Analysis and integration of different multi-temporal studies allowed for water flooding optimizing, improved oil recovery and reduce risks of premature wells watering.
Evaluation of Conductive Fracture Aperture Based on a Detailed Geomechanical Model: Myth or Reality in the Context of Complex Fractured Reservoir?
Authors: Zhigulskiy Svetlana , Lukin Sergey
Published: October 2019

A comparison of the criteria for the shear strength (linear and nonlinear) with different stress-strain state and variations of the parameters of fractures. Often, the first criterion is applied in petroleum engineering because of its "availability" in the parameters used, which do not require laborious calculations. But when calculating quantitative properties of fractures such as permeability and aperture, knowledge of the second criterion is required. This paper demonstrates the results of finite elemental modeling of a fractured reservoir (3D) under plastic deformation conditions with an estimate of mechanical and conductive aperture, as well as permeability.
Integrated Workflow for Fracture Detection and Modeling Based on Seismic Diffraction Imaging
Authors: Smirnov Konstantin , Rybnikov Anatoly , Sarkisov Gennady
Published: October 2019

Knowledge about fracture distribution and fracture properties plays a key role in the successful development of the majority of carbonate and other reservoirs types. Fractures can cause sharp discontinuities in the subsurface properties and act as generic sources of seismic diffraction. Seismic diffraction imaging can detect subsurface discontinuities associated with fracture distribution. The diffraction data enable geoscientists to model the discrete fracture network with great confidence. Fracture properties, populated in 3D geological grids, help to build a more reliable permeability model of a reservoir. The integrated approach, which combines the seismic diffraction imaging and the fracture geo-modeling techniques into one seamless workflow, increases the speed and accuracy of fracture characterization. Real data example shows that the proposed integrated workflow can be used to refine the results of structural/stratigraphic interpretation and help to create more meaningful models of the fractured subsurface.
Field Experience of Integrating Distributed Thermal Anemometer Data Analysis into Production Log Interpretation Workflows
Authors: Miklashevskiy Dmitriy , Skochelyas Roman , Shako Valery , Egorov Alexey , Solovev Timur , Soltanov Dzheikhun
Published: October 2019

The objective of this article is to share development progress and recent field examples for a new interpretation workflow enabling full integration of distributed dynamic thermal anemometry (TA) measurement data with the traditional workflow for production logging (PL) data analysis. A major focus is on oil-water inflow profiling in relatively low-rate horizontal wells.

The dynamic azimuthally distributed thermal anemometry (ADTA) tool was recently field tested in several wells as a part of the PL assembly. The collected data sets and accumulated interpretation experience were used to develop a new workflow to make ADTA an intrinsic part of the data interpretation workflow. It includes a set of enhanced algorithms and software tools that provide automated calculation of the key parameters derived from TA data analysis along with traditional logs. The enhanced workflow is partially based on previously published laboratory experimental data and on utilization of collected field data interpretation experience.

The newly developed algorithms and software tools enabled proving that results of the distributed TA data analysis are fully consistent with other PL data sets provided that the wellbore conditions and procedures enable high-quality measurements and interpretation. For such cases we demonstrate that profiles of multiphase inflows and wellbore phase fractions derived from the distributed TA agree reasonably well with interpretation of the spinner data, the distributed (volumetric) water-cut meter, and other PL data. Meanwhile, in cases of more challenging downhole conditions when some of the traditional PL measurements become unreliable, the distributed TA data can still provide interpretable and valuable information on the zonal inflow profiling. We discuss the uncertainty level for both cases: when all major PL data sets are available with good quality along with TA and in more challenging conditions with just a few reliable data sets. We conclude that integration of distributed TA data for quantitative analysis in multiphase wells extends PL capabilities toward more challenging wellbore conditions than previously possible.

We discuss unique data sets of distributed TA data along with other PL data in the same wells and their quantitative analysis. The field examples of the fully integrated quantitative interpretation workflow are provided for horizontal wells with multiphase flow.
Optimization on Well Energy Supplement and Cluster Spacing Based Upon Fracture Controlling Fracturing Technology & Reservoir Simulation - An Ordos Basin Case Study
Authors: Guo Ying , Weng Dingwei , Wang Xin , Duan Yaoyao , Xiu Jianlong , Chen Zhuxing , Liu Jianwei , Tang Meirong
Published: October 2019

Unconventional reservoir is characterized by its low permeability, insufficient reservoir energy and low production. To develop unconventional resource economically and efficiently, the industry has been spending tremendous resources to optimize completion, energy supplement and cluster spacing in stimulation technology by piloting – a trial approach. However, this approach tends to be time consuming and cost significant amount of money. As the fracturing modeling and stimulation technology advances, we question: "Can we use the fracturing modeling and reservoir simulation technologies to optimize well energy supplement and cluster spacing based upon Fracture Controlling Fracturing (FCF) technology, which is the latest concept for stimulation technology with successful applications in China's unconventional oil and gas development?", so that the industry can significantly save piloting time and money, and quickly find the optimal energy supplement method and cluster spacing corresponding to optimal completion.

Based on the actual geological conditions of the horizontal well group of An83 block in Changqing oilfield in Ordos basin, we first built a 3-D geological and petrophysical model by Petrel and Eclipse softwares, and then calibrated the model with multi-stage fracturing production history data of each well. Local grid refinement and equivalent permeability simulation of fractures were used to optimize the crack system and cluster spacing parameters. FCF is a new generation hydraulic fracturing technology to move all the controllable reserves per well, and develop unconventional resources economically and efficiently by making fractures matching ‘sweet spots’ and ‘non-sweet spots’. The FCF emphasizes on making all the oil and gas movable by the hydraulic fracturing for the first time, the integration of reservoir pressurization, stimulation and production. It aims at moving all the oil and gas in place, developing unconventional oil and gas resources sustainable and profitable.

The FCF has been successfully applied to the Ma56 block of Santang Lake in Tuha Oilfield of China. The average cluster spacing is 39.4 ft, and each stage has 5 clusters. The ‘fracture-controlled reserves’ was raised by optimizing well energy replenishment and cluster spacing based upon FCF technology. The total fluid volume injected is 151421.4bbl per well, and the formation energy is fully supplemented. Compared with neighboring wells, the oil production has increased by 1.7 times. With outstanding performance in production enhancement for unconventional oil and gas plays, FCF is worthy of extensive promotion.
Specifics of Pressure Analysis of Multi-Stage Hydraulic Fracturing of Horizontal Wells Completed in Low Permeable Reservoir
Authors: Gaysina Narkes , Bochkarev Alexander , Chernyshev Dmitriy , Parshin Nikolay , Ryazanov Arsentiy
Published: October 2019

In this paper authors present pressure decline analysis after injection tests using diagnostic plots with focus on events that occur before the fracture closure (PCA). The main feature of used method is that analysis is performed by identifying mistakes during interpretation that can disrupt pressure decline curve. The essential instrument of interpretation in our method is Log-Log plot. Some effects which were earlier relating to "nonideal behavior" are removed from the analysis as they are not result of work of a reservoir – fracture system, but mistakenly interpreted factors. The last is made by standardizing of Log-Log plot to a "normal" form at the dominating in time period of the linear flow in a fracture. GdP/dG plot is referential instrument whereby fracture closure pressure can be determined in small point vicinities explicit in Log-Log plot.

This paper discusses the existing methods of fracturing parameters determination, the analysis of completeness and clarity of these methods is carried out. Approaches to interpretation of J-shaped curves of pressure decline and the most probable causes of such behavior of pressure were discussed in the context of "nonideal behavior" in many papers. According to our method, Interpretation of pressure decline should at first been carried out according to "ideal behavior". Interpretation of S-shaped curves of pressure decline can be also carried out in the context of "ideal behavior", and leads, according to this paper authors, to correct assessment of efficiency and net pressure in fracture.

Paper is aimed at presenting of practical actions of the engineer in pressure decline analysis in low-permeable reservoirs. In this case, fracture can have the sufficient sizes to observation allowing to identify on Log-Log plot the characteristic flow states. This factor causes limits of applicability of the offered method. Definition of application, requires carrying out the analysis of statistics on fields, including the analysis as behavior of pressure decline after injection tests, so and production performance.

Described method was applied on field in Western Siberia. Occurred production problems were the cause to start investigation of pressure decline analysis methods.
Developing Cement Mixtures to Cement Horizontal Well Intervals with Multi-Stage Fracturing
Authors: Bakirov Daniyr , Burdyga Vitaly , Fattakhov Marsel , Belousov Andrey
Published: October 2019

The well casing practice shows that cement stone ensuringcasing integrity can destroy under the impact of loads during performance of different process operations. Dynamic impact violates casing integrity most seriously. The potential consequences are inter-casing and behind-casing cross flows, bottom water breakthroughs into a perforation interval, premature water flooding.

The currently used cementing materials based on Portland cement resist shock loads inadequately and have a low tearing strength. Many complications connected with premature water flooding directly depend on the low deformation capacity of cement stone.

This work suggests methods to solve the problem of annular isolation integrity destruction on the basis of a range of studies, and namely: calculation of the required cement stone strength to prevent its destruction behind casing during perforation and fracturing operations; assessment of the currently used cementing materials to check their ability to ensure the required strength; assessment of cement stone stress via the finite elements method; graphical representation of the stress condition of cement stone by means of the Mohr theory.
The safety and efficiency of low-dose mineralocorticoid receptor antagonists in dialysis patients: a meta-analysis
Authors: Zhu Yifan , Liu Yueming , Cai Ruyi , Zheng Danna , Liang Xudong , Tao Mei , Jin Juan , Li Yiwen , He Qiang
Published: October 2019

Background: Our aim was to evaluate the safety and efficacy of low-dose mineralocorticoid receptor antagonists (MRAs) in dialysis patients.Methods: We systematically searched PubMed, EMBASE, and Cochrane libraries for clinical trials on the use of MRAs in dialysis patients. Review Manager 5.3 software was used to analyze relevant data and evaluate the quality of evidence.Results: We identified nine randomized controlled trials including 1128 chronic dialysis patients. In terms of safety, when hyperkalemia was defined as serum potassium level ≥5.5 mmol/L, low-dose MRAs were significantly associated with hyperkalemia (relative risk [RR] 1.76, 95% CI 1.07–2.89, P = 0.02); however, when hyperkalemia was defined as serum potassium level ≥6.0 mmol/L or serum potassium level ≥6.5 mmol/L, no significant association was observed between low-dose MRAs and hyperkalemia (RR 1.40, 95% CI 0.83–2.37, P = 0.20; RR 1.98, 95% CI 0.91–4.30, P = 0.09, respectively). Use of low-dose MRAs can reduce CV mortality by 57% compared with the control group (RR 0.43, 95% CI 0.25–0.75, P = 0.003). Similarly, the RR of all-cause mortality for the low-dose MRAs group was 0.44 (95% CI 0.28–0.68, P = 0.0003).Conclusion: Low-dose MRAs may benefit dialysis patients without significantly increasing moderate to severe hyperkalemia.
Life satisfaction analysis of occupational balance group: based on Korean time use survey data (KOSTAT) of older adults
Authors: Cha Yu-Jin
Published: October 2019

Background: The purpose of this study was to identify whether there is a difference in time use between a group of subjects with occupational balance, the occupational balance group (OB group) and a group of subjects lacking occupational balance, the occupational imbalance group (OI group), and what factors influence the life satisfaction of the OB group. This study used raw data from the 2014 Time Use Survey of the Korea National Statistical Office (KOSTAT).
Methods: This study sorted detailed activities of the 9.228 subjects who were over 65 years of age. We conducted an independent sample t-test to confirm the time difference by areas between the OB group and the OI groups. In order to confirm the effect of variables on life satisfaction, we performed regression analysis by applying an ordered probit model (OPM).
Results: The analysis of time use corresponding to eight activity areas showed the greatest time use for the instrumental activities of daily living (IADL), followed by rest and sleep, leisure, and activities of daily living (ADL). The largest effect size (ES) was social participation, followed by leisure, IADL, and work. As a result of analyzing the factors affecting the life satisfaction of the OB group, we found that lower age, females, a higher level of education, a lower need for care, higher income, and agricultural residence tended to correspond to higher life satisfaction.
Conclusions : This study may provide a basis for the development of the time‐use management and lifestyle redesign programs to assist older adults in pursuing disease prevention and health maintenance roles by themselves.
A retrospective evaluation of the association between potentially inappropriate prescribing and adverse drug reactions among hospitalized elderly Nigerians
Authors: Saka Ajibola Sule , Oosthuizen Frasia , Nlooto Manimbulu
Published: October 2019

Background
Potentially inappropriate prescribing is associated with adverse clinical outcomes in the elderly. The Beers Criteria were developed to improve the quality of medication prescribing and safety to the elderly. However, the nexus between the Criteria’s potentially inappropriate medicines (PIMs) and adverse drug reactions (ADRs) remains controversial in clinical practice. This study aimed to evaluate the association between the 2015 American Geriatrics Society-Beers’ (AGS-Beers) PIMs and ADRs among elderly inpatients.
Methods
A cross-sectional retrospective study was carried out among elderly patients aged ≥ 60 years that were hospitalized between 1st January and 31st December 2016 at the internal medicine wards of a Nigerian University teaching hospital. Eligible elders that were hospitalized or died within 24 hours were excluded from the study. The medical records of eligible participants were randomly selected and information including patients’ socio-demographics, medication and medical histories, and medicines utilization during hospitalization were extracted from the records. Two clinical pharmacists evaluated the medical charts for PIMs using the 2015 AGS-Beers Criteria and ADRs using the Naranjo algorithm. Bivariate analyses and subsequently, a binary logistic regression, were carried out to determine the association between independent variables and ADRs with P<0.05 being considered significant.
Results
A total of 268 participants mean age, 70.53 (8.22) years were evaluated. According to the AGS-Beers Criteria, 32.1% (86/268) received at least one PIM, 13.8% (37/268) experienced 43 ADRs during hospitalization of which diclofenac was the most implicated medication for it (8/43, 18.6%). The AGS-Beers’ PIMs were not associated with ADRs in the bivariate analysis (p=0.24). The diagnoses of musculoskeletal disorders (OR=7.38, 95%CI=2.68-20.34, p<0.001) and the use of anticholinergic medications (OR=4.02,95%CI=1.04-15.58, p=0.04) were significantly associated with ADRs in the logistic regression.
Conclusion
The elderly inpatients experienced ADRs which were associated with diagnoses of musculoskeletal disorders and anticholinergic medications but not the 2015 AGS-Beers’ PIM in the Nigerian teaching hospital.
Keywords: adverse drug reaction, Beers criteria, elderly inpatient, potential inappropriate prescribing
Running title: Potential inappropriate prescribing and adverse drug reactions in elderly
Carbonation and decarbonation reactions: Implications for planetary habitability
Authors: Stewart E.M. , Ague Jay J. , Ferry John M. , Schiffries Craig M. , Tao Ren-Biao , Isson Terry T. , Planavsky Noah J.
Published: October 2019

The geologic carbon cycle plays a fundamental role in controlling Earth's climate and habitability. For billions of years, stabilizing feedbacks inherent in the cycle have maintained a surface environment that could sustain life. Carbonation/decarbonation reactions are the primary mechanisms for transferring carbon between the solid Earth and the ocean–atmosphere system. These processes can be broadly represented by the reaction: CaSiO3 (wollastonite) + CO2 (gas) ↔ CaCO3 (calcite) + SiO2 (quartz). This class of reactions is therefore critical to Earth's past and future habitability. Here, we summarize their significance as part of the Deep Carbon Obsevatory's “Earth in Five Reactions” project. In the forward direction, carbonation reactions like the one above describe silicate weathering and carbonate formation on Earth's surface. Recent work aims to resolve the balance between silicate weathering in terrestrial and marine settings both in the modern Earth system and through Earth's history. Rocks may also undergo carbonation reactions at high temperatures in the ultramafic mantle wedge of a subduction zone or during retrograde regional metamorphism. In the reverse direction, the reaction above represents various prograde metamorphic decarbonation processes that can occur in continental collisions, rift zones, subduction zones, and in aureoles around magmatic systems. We summarize the fluxes and uncertainties of major carbonation/decarbonation reactions and review the key feedback mechanisms that are likely to have stabilized atmospheric CO2 levels. Future work on planetary habitability and Earth's past and future climate will rely on an enhanced understanding of the long-term carbon cycle.
“Say hello to Halo”: the halo effect in sports
Authors: Nufer Gerd
Published: October 2019

In daily life, people tend to use mental shortcuts to simplify and speed up their decision-making processes. A halo effect exists if the impression created by a dominant attribute influences how other attributes of an object or subject are judged. It involves a cognitive bias that leads to distorted assessments. However, the halo effect has barely been researched in a sports-related context, although it can substantially contribute to understanding how sport fans think and behave. The objective of this paper is to answer the question that is of interest for both theory and practice of sports marketing: Is there a halo effect in sports? Does the sporting success or failure of a professional soccer team radiate or even outshine other sports-related and non-sports aspects and influence or distort how the club is perceived by its fans? Fans of six soccer clubs selected from the first German soccer league Bundesliga were interviewed. This paper presents the results of an empirical study based on a data set consisting of a total of 4,180 cases. The results of the analyses substantiate the distortion of the fans’ perception with regard to a very diverse range of aspects that is triggered by the sporting success or failure of their favorite club.
Investment and innovative development of industrial enterprises as the basis for the technological singularity
Authors: Iastremska Оlena , Strokovych Hanna , Dzenis Oleksiy , Shestakova Olena , Uman Timur
Published: October 2019

Investment and innovative development of industrial enterprises is driven by the influence on the sensitive indicators of their activity, which characterize technological singularity. Therefore, it is expedient to define them using adequate economic and mathematical methods that will identify the development and growth points that are characterized by the accumulation of information and are a manifestation of singularity. The purpose of the article is to determine the main sensitive indicators of the investment and innovative development of industrial enterprises, which are the points of technological singularity. The article proposes conceptual provisions for evaluating the investment-innovation activity of enterprises as a basis for their development. These provisions consider the activity of economic entities according to three states (functioning, growth, and development); evaluation of investment and innovation activities, both individually and in conjunction with the official statistical reporting of enterprises using a well-founded minimum sufficient system of partial indicators defined through the multidimensional factor analysis and combined into integral and summarizing indicators; determination of technological singularity points as a result of prediction of partial and summarizing indicators’ values via the neural networks method. A methodological approach is developed to substantiate the technological singularity points, the managerial influence on which is provided by the development of enterprises. The methodological approach is based on considering the investment-innovation activity nonlinearity, both explicit and latent tendencies of development, situationality and variability of its goals, strategic orientation and possible technological singularity of an enterprise. The proposals submitted were implemented based on statistical reports of the machine-building enterprises for 2014–2018.
PENGEMBANGAN INSTRUMEN PENILAIAN PENGETAHUAN AWAL (PRIOR KNOWLEDGE) MAHASISWA PADA MATERI TERMOKIMIA
Authors: Ismawati Riva , Trisnowati Eli
Published: October 2019

Abstract This study aims to determine the characteristics of the testlet assessment instrument items of student’s prior knowledge on thermochemistry material. The method used in this research was research and development method of 3-D model (Define, Design, Develop). Instruments were piloted on 39 students and validated by experts. Instrument reliability (r11) of the instrument was 0.9 with very high category. The validity of the items consisted of 42 valid questions, and 3 invalid questions. The difficulty index of item consisted of 7 difficult questions, 34 moderate questions, and 4 easy questions. Discrimination index of item consisted of 7 questions bad category, 17 questions enough category, 20 questions good category, and 1 question very good category.Keywords : assessment instrument, prior knowledge, teslet, thermochemistry Abstrak Penelitian ini bertujuan untuk menentukan karakteristik butir soal instrumen penilaian pengetahuan awal (prior knowledge) mahasiswa berbentuk tes teslet pada materi termokimia. Metode yang digunakan dalam penelitian ini adalah metode penelitian dan pengembangan model 3-D (Define, Design, Develop). Instrumen diujicobakan pada 39 mahasiswa dan divalidasi oleh ahli. Reliabilitas instrumen r11 sebesar 0,9 dengan kategori sangat tinggi. Validitas butir soal terdiri dari 42 soal valid, dan 3 soal tidak valid. Tingkat kesulitan butir soal terdiri dari 7 soal sukar, 34 soal sedang, dan 4 soal mudah. Daya pembeda butir soal terdiri dari 7 soal jelek, 17 soal cukup, 20 soal baik, dan 1 soal sangat baik.Kata kunci: instrumen penilaian, pengetahuan awal, testlet, termokimia
ANALISA TINGKAT PEMAHAMAN DAN MISKONSEPSI PADA MATERI LISTRIK STATIS MAHASISWA TADRIS FISIKA MENGGUNAKAN METODE 3-TIER MULTIPLE CHOICES DIAGNOSTIC
Authors: Didik Lalu A. , Aulia Fitratul
Published: October 2019

Telah dilakukan analisa tingkat pemahaman dan miskonsepsi mahasiswa tadris fisika Universitas Islam Negeri Mataram. Sub materi yang diuji disesuaikan dengan Rencana Pembelajaran Semester Mahasiswa pada Mata Kuliah Listrik Magnet yang mencakup Gaya Coulomb, Medan Listrik dan Potensial Listrik. Metode yang digunakan adalah 3-Tier Multiple Choices. Dalam metode ini ada tiga tahap jawaban mahasiswa yaitu jawaban konsep, alasan dan tingkat keyakinan. Berdasarkan hasil tes diagnostic terhadap mahasiswa diperoleh tingkat pemahaman penuh mahasiswa sebesar 42,92% dan tingkat miskonsepsi sebesar 23,61%. Mahasiswa mengalami miskonsepsi terbesar pada sub materi Medan listrik yaitu sebesar 37,50% dan terendah pada materi potensial listrik yaitu sebesar 10%. Walaupun persentase miskonsepsi tergolong kecil namun masih ada mahasiswa yang mengalami miskonsepsi pada setiap submateri.
Web-based geospatial platform for the analysis and forecasting of sedimentation at culverts
Authors: Xu Haowen , Muste Marian , Demir Ibrahim
Published: October 2019

Sedimentation is one of the major operational hazards for culverts located in Midwestern areas of the United States. Currently, there are no systematic efforts for mitigating detrimental effects of sediment blockage at culverts, as the problem involves complex and interlinked environmental processes that are difficult to investigate and solve with conventional approaches (e.g., experimental methods and physical modeling). In this paper, we present a new, innovative solution for addressing culvert sedimentation using a data-driven approach. This approach enables the identification of culvert sedimentation drivers and quantifies the relationships between drivers and culvert sedimentation severity, making use of an extensive set of multi-disciplinary data. The data analysis and management tools are embedded in a web-based platform, the IowaDOT Culverts. Through user-friendly interfaces and interactive visualizations, this platform facilitates the analysis and forecasting of sedimentation at multi-box culverts across Iowa. The IowaDOT Culverts web-based geospatial platform allows us to: (a) integrate, access, store, and manage diverse culvert-related information; (b) organize and document culvert inspections in real time; (c) conduct sedimentation-related analyses using computer-driven visual analytical approaches; and (d) support forecasting of the culvert sedimentation potential. The platform is developed with open-source web technologies and modular system designs, making it scalable, flexible, and extendable to other geographical regions.
Bulk properties of multidimensional objects
Authors: Vitko Aleksandr Viktorovich
Published: October 2019

For the purpose of learning multidimensional models, difficult for perception, representations and technology (device) of the description and measurement of volume and amount of the substance filling the volume of multidimensional objects are considered. Alternative options of multidimensional set of one-dimensional models and unified multidimensional model of three-dimensional objects are compared. The technology of measurement of multidimensional volume and amount of the substance that fills volume is shown. The authors came to the conclusion when transferring from a set of coordinate vectors of material points in complete spatial angle 4π steradian to multidimensional model of in pairs orthogonal vectors, calculation of volume of a multidimensional object significantly becomes simpler. The conclusion is that potentially infinite-dimensional model of an object represents the sphere in which balk of volume, the quantity and energy of the substance filling volume are entirely concentrated on its surface.
Antimicrobial properties of the peptide substance Bacillus Subtilis PSF-19
Authors: Pokhilenko Viktor Danilovich , Perelygin Vladimir Vladimirovich , Kalmantaev Timur Akhmerovich , Detushev Konstantin Vladimirovich , Chukina Irina Anatolevna
Published: October 2019

The subject of the study is a strain of Bacillus subtilis PSF-19 isolated by us from vegetable raw materials (Passiflora preparation), which is capable of producing antimicrobial substance (AMV) suppressing pathogenic bacteria. The article discusses the method and conditions of extraction from the culture fluid fraction of AMV, active against Listeria monocytogenes – one of the dangerous intestinal pathogens that infect food. Using biochemical methods and mass spectroscopy, the molecular weight and the peptide nature of the active fraction of AMV were determined. A fraction of AMV with a molecular weight of 3,4–3,6 kDa has bactericidal activity, which is destroyed by treatment with proteolytic enzymes, which allowed it to be attributed to the group of low-molecular antimicrobial peptides – bacteriocins.
The studies allow to consider the strain Bacillus subtilis PSF-19 as a producer of bacteriocin, especially effective against pathogens of intestinal listeriosis. The establishment of the fact of destructibility of proteolytic enzymes, finding the conditions of microbiological synthesis of AMV, its isolation and accumulation for research, provide opportunities for practical use as a means for decontamination of the environment instead of traditional antibiotics.
Bases of sustainable development and concept of green economy in practice of oil and gas companies in the XXI century
Authors: Gureva Mariia Andreevna , Butko Valentina Vladimirovna
Published: October 2019

The practice of implementing the key principles of sustainable development and the green economy in the activities of modern oil and gas companies is considered in the article. The authors come to conclusion that the implementation and construction of policies focused on the modernized goals and objectives of the green economy, meeting modern challenges in development, can be a direction for the development and updating of strategies of oil and gas companies in Russia in the medium term.
Necesidades de acceso a servicios institucionales de familias con hijos con discapacidad intelectual
Authors: Cabrera-García Victoria , García-Reales Julia , Rivera-Ensuncho María , Bermeo-Solarte Leidy
Published: October 2019

Este artículo presenta los resultados de una investigación de enfoque cuantitativo y diseño descriptivo transversal, que tiene como propósito de identificar el nivel de acceso a los servicios que ofrecen las instituciones gubernamentales y privadas a las familias de niños en condición de discapacidad intelectual. Se contó con la participación de 82 familias de las ciudades de Bogotá D.C, Cali y Putumayo, 16 papás y 66 mamás a cargo de 54 niños y 28 niñas con edades entre dos y 17 años. Se aplicó el instrumento de FNA versión Colombia y se corrió un análisis de varianza (ANOVA). Los resultados muestran como la necesidad más alta, los servicios educativos para los hijos y como más baja, la comprensión familiar dentro de las creencias espirituales. Así mismo diferencias 1) por sexo: las familias con niños (M=3,46) presentan más necesidades que las familias con niñas (M=3,10), y 2) por edad en dos grupos: el primero con resultados más altos entre los dos a 10 años, y el segundo de 11 a 17 años muestra que las familias con hijos adolescentes (M=3,60) presentan mayor necesidad de acceso a servicios que las familias con niños y niñas (M=3,23).
Tracción de canino maxilar con la técnica quirúrgica incisión vertical y túnel de acceso subperióstico
Authors: Tovío Martínez Eilien , Vergara Villarreal Patricia , Martínez Martínez Adel , Harris-Ricardo Jonathan
Published: October 2019

Los dientes caninos presentan una alta frecuencia de inclusión, ocupando el segundo lugar después de  los terceros molares, su permanencia en la arcada dental es importante  por las diversas funciones que cumple en la cavidad bucal,  permitiendo desgarrar los alimentos al masticar, guían la oclusión dental, son los encargados de centralizar y desprogramar la oclusión durante los movimientos de lateralidad, dan soporte al labio superior, marcan el límite del sector anterior, destacándose en la sonrisa. La técnica de incisión vertical y túnel de acceso subperióstico (VISTA), permite la tracción de dientes impactados por vestibular, es poco traumática para los tejidos blandos, disminuye los problemas periodontales y evita la reabsorción radicular de los dientes adyacentes. El objetivo es reportar caso clínico en el que se especifica la secuencia del abordaje ortoquirúrgico aplicando la técnica VISTA en un paciente con el diente 13 incluido, mostrando buenos resultados, se describen la técnica quirúrgica y manejo ortodóntico.
An Overview of the Heterogeneity of Major Depressive Disorder: Current Knowledge and Future Prospective
Authors: Athira Kaipuzha Venu , Bandopadhyay Sikta , Samudrala Pavan Kumar , Naidu V.G.M. , Lahkar Mangala , Chakravarty Sumana
Published: October 2019

Major depressive disorder (MDD) is estimated to impose maximum debilitating effects on the society by 2030, with its critical effects on health, functioning, quality of life and concomitant high levels of morbidity and mortality. Yet, the disease is inadequately understood, diagnosed and treated. Moreover, with the recent drastic rise in the pace of life, stress has materialized as one of the most potent environmental factors for depression. In this scenario, it is important to understand the modern pathogenetic hypotheses and mechanisms, and possibly try to shift from the traditional approaches in depression therapy. These include the elaboration of pathophysiological changes in heterogeneous systems such as genetic, epigenetic, serotonergic, noradrenergic, gammaaminobutyric acid, glutamatergic and endocannabinoid systems, neurotrophic factors, HPA axis, immune system as well as cellular stress mechanisms. These components interact with each other in a complex matrix and further elucidation of their mechanism and cascade pathways are needed. This might aid in the identification of MDD subtypes as well as the development of sophisticated biomarkers. Further, characterization might also aid in developing multitargeted therapies that hold much promise as compared to the conventional monoamine based treatment. New candidate pharmacons, refined psychotherapeutic modalities, advanced neuro-surgical and imaging techniques as well as the implementation of pharmacokinetic, pharmacogenetic prescribing guidelines constitute the emerging expanses of MDD treatment.
ANALISIS BUDAYA KESELAMATAN KERJA PEGAWAI DI BIRO PERENCANAAN (BP) – BADAN TENAGA NUKLIR NASIONAL (BATAN)
Authors: Agustini Sri , Kaliwanto Budi
Published: October 2019

Abstrak: Analisis Budaya Keselamatan Keselamatan Kerja Pegawai di Biro Perencanaan – BADAN TENAGA NUKLIR NASIONAL (BATAN). Penelitian ini bertujuan untuk mengetahui budaya keselamatan kerja pegawai di BP BATAN dan mengidentifikasi profil budaya organisasi pada jajaran pimpinan. Hasil penilaian budaya keselamatan kerja pegawai di BP BATAN  masuk dalam kategori Baik. Penelitian deskriptif dengan  interprestasi dan analisis kuantitatif ini memperoleh hasil penilaian diri dari 5 Karakteristik dan 37 Atribut Budaya Keselamatan di BP BATAN  yang terdiri dari penilaian pejabat struktural sebanyak 13 orang dengan hasil penilaian diri budaya keselamatan 3,93 dengan kategori Baik. Pejabat fungsional sebanyak 11 orang  dengan hasil penilaian diri budaya keselamatan 3,73 dengan kategori B, dan non struktural-non fungsional sebanyak 13  orang dengan hasil penilaian diri budaya keselamatan 3,64 dengan kategori B.  Sedangkan hasil penilaian diri BP dari 33 pegawai BP dengan hasil penilaian diri budaya keselamatan 3,78 dengan kategori B. Hasil analisis juga menunjukkan bahwa budaya keselamatan kerja pegawai  yang melibatkan antar bidang dan keahlian kurang berjalan dengan baik di BP, sikap saling percaya belum sepenuhnya meresap pada semua pegawai. Kata kunci: Budaya Keselamatan  Kerja Pegawai, Budaya organsasi, Pegawai BP Abstract: Analysis of Employee Safety Culture in the Planning Bureau - NUCLEAR NUCLEAR AGENCY (BATAN). This study aims to understand the work safety culture at BP BATAN and improve the organizational culture profile at the leadership level. Results The work safety culture award at BP BATAN is in the Good category. Descriptive research with interpretation and quantitative analysis obtained the results of self-assessment of 5 Characteristics and 37 Attributes of Safety Culture in BP BATAN consisting of 13 structural permits with Good Cultural Safety 3.93 results with Good category. Functional Officials A total of 11 people with cultural safety results of 3.73 with category B, and non-functional non-functional as many as 13 people with results Improve safety culture 3.64 with category B. Results produced by BP themselves from 33 BP employees with assessment results self safety culture 3.78 with category B. The results of the analysis also show that work safety culture that involves interdisciplinary and expertise is not going well at BP, incompatible mutual trust pervades all employees. Keywords: Employee Safety Culture, Organizational Culture, BP Employees
TUJUAN PENDIDIKAN ISLAM DAN GERAKAN IKHWANNUL MUSLIMIN MENURUT HASAN AL-BANNA
Authors: Niyah Iin Mas
Published: October 2019

ABSTRAKHasan al-Banna sebagi tokoh yang terkemuka di zamannya. Menurut Hasan al-Banna aspek ketuhanan atau keimanan merupakan segi terpenting dalam pendidikan Islam. Yang demikian itu karena tujuan pertama dari pendidikan Islam adalah membentuk manusia yang beriman kepada Allah. dalam Islam, iman bukanlah sekedar ucapan atau pengakuan belaka. Iman merupakan kebenaran yang jika masuk ke dalam akal akan memberi kepuasan akli, jika masuk ke dalam  perasaan akan memperkuatnya, jika masuk ke dalam iradah atau keinginan (will) akan membuatnya dinamis dan mampu menggerakkan. Tiang pendidikan berdasar ketuhanan adalah hati yang hidup dan salalu berhubungan dengan Allah SWT, meyakini pertemuan dengan-Nya dan hisab-Nya, mengharapkan rahmat-Nya dan takut akan siksa-Nya. Hat adalah satu-satunya pegangan yang dapat ditunjukkan oleh seorang hamba kepada Tuhannya pada hari kiamat sebagai sarana bagi keselamatannya. Menurut al-Banna, secara garis besar tujuan pendidikan Islam dibagi menjadi dua bagian: tujuan akhir (permanen) dan tujuan antara (kontekstual).Kata kunci: Hasan Al-Banna, Ikhwanul Muslimin,pendidikan Islam,[WU1] ABSTRACTHasan al-Banna was a prominent figure in his day. According to Hasan al-Banna the aspect of divinity or faith is the most important aspect of Islamic education. That is because the first goal of Islamic education is to shape people who believe in Allah. in Islam, faith is not just a mere speech or confession. Faith is a truth that if it enters into the mind will give satisfaction, if it enters the feeling it will strengthen it, if it enters into the iradah or desire (will) will make it dynamic and able to move. Godhead-based education poles are hearts that live and are always in touch with Allah SWT, believe in meeting Him and His reckoning, expecting His mercy and fearing His punishment. Hat is the only handle that can be shown by a servant to his Lord on the Day of Judgment as a means for his salvation. According to al-Banna, broadly the aim of Islamic education is divided into two parts: the final goal (permanent) and the intermediate goal (contextual). Keyword : Hasan Al-Banna, Muslim Brotherhood, Islamic education,
Beliefs Related to Participation in a Large Web-Based Prospective Survey on Diet and Health Among Individuals With a Low Socioeconomic Status: Qualitative Study
Authors: Côté Mélina , Lapointe Annie , Laramée Catherine , Lemieux Simone , Desroches Sophie , Belanger-Gravel Ariane , Lamarche Benoît
Published: October 2019

Background

NutriQuébec is a Web-based prospective study on the relationship between diet and health as well as the impact of food-related health policies in the adult population of Québec, Canada. Recruitment and retention of individuals with a low socioeconomic status (SES) in such a study are known to be challenging, yet critical for achieving representativeness of the entire population.

Objective

This study aimed to identify the behavioral, normative, and control beliefs of individuals with a low SES regarding participation in the NutriQuébec project and to identify their preferences regarding recruitment methods.

Methods

A total of four focus groups were conducted in community centers located in low-income areas of Québec City, Canada. On the basis of the theory of planned behavior, participants’ beliefs associated with attitude, subjective norm, and perceived behavioral control regarding hypothetical participation in the NutriQuébec project were identified. Focus groups were recorded, transcribed, and coded by two analysts.

Results

Participants (16 men and 12 women) were aged between 28 and 72 years, and a majority of the participants had an annual household income of Can $19,999 or less. The main perceived advantages of participating in the NutriQuébec project were contributing to improved collective health and supporting research. The only disadvantage identified was the risk of having to fill out too many questionnaires. Participants could not, in general, identify persons from their entourage who would approve or disapprove their participation in the study. The main facilitators identified were obtaining a brief health assessment and the ability to complete questionnaires in a way that is not Web-based. The main barrier was the lack of internet access. The preferred means of recruitment were through social media, television, and community centers.

Conclusions

These results provide insightful information regarding the best methods and messages to use in order to recruit and retain individuals with a low SES in a population-based prospective study on lifestyle and health on the internet.