bluuebunny/crossref_metadata_2025 huggingface dataset:
A Data-Driven Approach to Evaluate Fracturing Practice in Tight Sandstone in Changqing Field
Authors: Wu Tao , Fang Hanzhi , Sun Hu , Zhang Feifei , Wang Xi , Wang Yidi , Li Siyang
Published: March 2021

Unconventional reservoirs such as shale and tight sandstones that with ultra-low permeability, are becoming increasingly significant in global energy structures (Pejman T, et al., 2017). For these reservoirs, successful hydraulic fracturing is the key to extract the hydrocarbon resources efficiently and economically. However, the intrinsic mechanisms of fracturing growth in the tight formations are still unclear. In practice, fracturing design mainly depends on hypothetical models and previous experience, which leads to difficulties in evaluating the performance of the fracturing jobs. Therefore, an improved method to optimize parameters for fracturing is necessary and beneficial to the industry.

In this paper, a data-driven approach is used to evaluate the factors that dominate the production rate from tight sandstone formation in Changqing Field which is the largest oil field in China. In the model, the input parameters are classified into two categories: controllable parameters (e.g. stage numbers, fracturing fluid volume) and uncontrollable parameters (e.g. formation properties), and the output parameter is the accumulated oil production of the wells. Data for more than 100 wells from different formations and zones in Changqing Field are collected for this study. First, a stepwise data mining method is used to identify the correlations between the target parameter and all the available input parameters. Then, a machine learning model is developed to predict the well productivity for a given set of input parameters accurately.

The model is validated by using separate data-sets from the same field. An optimize algorithm is combined with the data-driven model to maximize the cumulative oil production for wells by tuning the controllable parameters, which provides the optimized fracturing design. By using the developed model, low productivity wells are identified and new fracturing designs are recommended to improve the well productivity.

This paper is useful for understanding the effects of designed fracturing parameters on well productivity in Changqing Oilfield. Furthermore, it can be extended to other unconventional oil fields by training the model with according data sets. The method helps operators to select more effective parameters for fracturing design, and therefore reduce the operation costs for fracturing and improve the oil and gas production.
Study on Ultimate Recovery Factor and Oil Recovery Rate of Water-Flooded Sandstone Oil Fields in Eastern South China Sea
Authors: Xiong Qi , Yan Zhenghe , Li Li , Yang Yong , Wang Yahui , Chen Xiao
Published: March 2021

Under the natural energy development of Marine sandstone oil fields in the east of the South China Sea, the recovery degree of some oil fields has exceeded 65%, and the production capacity is still strong. The high-speed development model does not seem to have an adverse effect on oil recovery. Based on the existing knowledge and technical conditions, it is difficult to analyze and predict the final recovery rate of oil field. The reasonable boundary between the oil rate and recovery is also unclear.

In this study, we investigate the correlation between oil rate and recovery rate by experiment and field practice. Based on the microscopic displacement experiment, the variation rules of phase permeability, wettability, residual oil, displacement efficiency and sweep volume of different displacement multiples are studied. The variation law of oil rate and recovery under different fluidity and well control conditions is studied by mathematical statistics according to the production dynamic data. Thus, the influencing factors and percolation mechanism of the optimal recovery under high multiples water flooding are clarified, and the relationship between the reasonable oil rate and optimal recovery under different reservoir conditions is formed.

Micro experiments show that high multiples water flooding can improve the reservoir property, change wettability of rocks, reduce the residual oil saturation, improve oil displacement efficiency and the final oil displacement efficiency can reach 80%. Statistical research shows that when the oil recovery rate is less than 10%, the recovery rate increases with the increase of oil rate. For bottom water reservoirs, the recovery rate is recommended to be no more than 8%.

The paper innovatively studies the correlation between the reasonable oil rate and optimal recovery in Marine sandstone oilfield from microscopic experimental analysis and macroscopic statistical research. The research results effectively guide the oil field production practice of more than 200 Wells in more than 20 oil fields in the eastern South China Sea in 2019, with a cumulative oil increase of more than 5 million barrels. And it has important guiding significance to the efficient and economical development of Marine sandstone oilfield.
Research on the Law of Liquid Production Index of Bohai Typical Oilfield Based on Big Data
Authors: Yue Baolin , Liu Bin , Shi Hongfu , Shi Fei , Zhang Wei
Published: March 2021

The prediction of reservoir fluid production law play a key role in offshore oil field development plan design. It determines the parameter selection of pump displacement, oilfield submarine pipe capacity, platform fluid handling capacity, power generation equipment, etc. If the liquid production forecast is too low, the capacity will be expanded later, while if the forecast is too high, it will result in a waste of investment, which directly affects the fixed investment in oilfield development. Based on the statistical analysis of big data, this paper applies the dynamic data of all single wells and full life cycle of the oil field to analyze the dimensionless liquid production index (DLPI) law, and further establish the liquid production index prediction formula on this basis. Thus, the different types of Bohai plate and statistical table of the characteristics of the DLPI of the reservoir are completed. The results show that the DLPI of Bohai Sea heavy oil reservoir are following: water cut < 60 % indicates the trend is flat; water cut between 60 ∼ 80 % illustrates the slow growth (water cut 80 % is 2.5∼3 times); water cut > 80 % shows rapid growth (water cut 95% is 5.5∼6 times). The DLPI of Bohai Sea conventional oil reservoir are as following: when the water cut < 60%, the DLPI drops first, and then increase when the water cut is about 30% (the lowest point (0.7∼0.9 times)). When the water cut rise to 60%, the DLPI returns to 1 times; When the water cut is 60∼80%, it grows slowly (1.5∼2 times); when the water cut > 80 %, it grows rapidly (water cut 95% is 2∼3 times). The study may provide a guidance to the prediction of the amount of fluid in offshore oilfields, provide a basis for the design of new oilfield development schemes and increasing the production of old oilfields.
Identification and Impacts of Dual Strings Completion Leak in History Matching of Highly Faulted and Multi Layered Clastic Oil Reservoirs
Authors: Mohmad Nis Ilyani , Ismadi Danu , Salleh Nor Hajjar , Romle Amirul Nur , Syed Abd Rahim Syarifah Puteh , Jamaluddin M Syafiq , Mohamad Khaireen , Azahari Nor Azwan , Yang Juhari
Published: March 2021

History matching is one of the paramount steps in reservoir model validation to describe, analyze and mimic the overall behavior of reservoir performance. Performing history matching on highly faulted and multi layered reservoirs is always challenging, especially when the wells are completed with multiple zones either with single selective or dual strings. The history matching complexity is also compounded with uncertainties in production allocation, well history and downhole equipment integrity overtime.

It is a common practice for deterministic history matching in reservoir numerical simulation to modify the both static and dynamic model parameters within the subsurface uncertainty window. However, for multi layered reservoirs completed with dual strings, another parameter that is most often get overlooked is the completion string’s leaking phenomenon that tremendously impacting the history matching.

The objective of this paper is to introduce dual strings leaking diagnostics methodology from various disciplines’ angles. We demonstrate these dual strings leaking phenomenon impact on history matching. This paper covers dual strings leak diagnostic methodology which includes production logging tool evaluation, well’s production performance and recovery factor analysis.

Possible factors that gives rise to the string’s leaks including material corrosion from high CO2 and sand production will also be discussed. We will demonstrate on how the leak phenomenon could be mimicked in the reservoir numerical model. Possible risks on future infill well identification if the leaks phenomenon is not incorporated will be also discussed.

The dual strings leaks diagnosis and application in numerical simulation is illustrated on a case study of Field "D", a multilayered sandstone reservoir in Malaysia of almost 3 decades of production. This proven leak identification and reservoir model history matching methodology has been replicated for all the fault blocks across the field. It potentially unlocks more than 100 MMSTB of additional oil recovery by drilling more oil producers and water injectors in future drilling campaigns.
Flowback Analysis Methodologies and Precipitation Risk During Siderite-Bearing Carbonate Acidizing
Authors: Al Baiz Abdualilah , Al Moajil Abdullah
Published: March 2021

Acidizing is the most commonly used method to stimulate carbonate reservoirs. To achieve a better assessment of the operation, a flowback analysis is conducted. Flowback analysis can give insights on the reservoir's response to the recipe. This analysis can be used to improve future treatment operations where some recommendations were deduced. The objective of this paper was to show the flowback analysis methodology following carbonate acidizing treatments with a focus on dissolved elements.

X-ray diffraction (XRD), X-ray fluorescence (XRF), environmental scanning electron microscope (ESEM), and inductive coupled plasma (ICP) were used to determine the composition of flowback fluids and the filtered precipitate. Combining the data from different techniques onsite and in laboratory assess the development of a methodology for calculating more accurate amounts of dissolved elements, formation water, and volumes of recovered fluids.

This analysis showed acid recipes efficiency of nearly 100% based dissolved calcite. Around 65% of injected fluids were lost into a formation. The iron concentration during the flowback was 1400 ppm, however, cumulative amount of iron in flow back samples was below expected value. Based on the formation's rock analysis, the theoretical amount of iron in the recovered flowback fluid was 1000 kg. The measured amount of iron was 500 kg and the rest could be assumed to be precipitated in a reservoir.

This study helps in understanding the flowback fluid analysis and its importance by using a step-by-step analysis procedure for flowback fluid samples from the carbonate acidizing operations. The results of this study help in tracking the elements that potentially help in estimating the lost fluids volumes and percentage of success for a carbonate reservoir acid operation.
Laser interstitial thermal therapy as an adjunct therapy in brain tumors: A meta-analysis and comparison with stereotactic radiotherapy
Authors: Franca Sabrina Araujo de , Tavares Wagner Malago , Salinet Angela Salomao Macedo , Teixeira Manoel Jacobsen , Paiva Wellingson Silva
Published: March 2021

Background:

Minimally invasive procedures are gaining widespread acceptance in difficult-to-access brain tumor treatment. Stereotactic radiosurgery (SRS) is the preferred choice, however, laser interstitial thermal therapy (LITT) has emerged as a tumor cytoreduction technique. The present meta-analysis compared current SRS therapy with LITT in brain tumors.

Methods:

A search was performed in Lilacs, PubMed, and Cochrane database. Patient’s demographics, tumor location, therapy used, Karnofsky performance status score before treatment, and patient’s outcome (median overall survival, progression-free survival, and adverse events) data were extracted from studies. The risk of bias was assessed by Cochrane collaboration tool.

Results:

Twenty-five studies were included in this meta-analysis. LITT and SRS MOS in brain metastasis patients were 12.8 months’ versus 9.8 months (ranges 9.3–16.3 and 8.3–9.8; P = 0.02), respectively. In a combined comparison of adverse effects among LITT versus SRS in brain metastasis, we found 15% reduction in absolute risk difference (−0.16; 95% confidence interval P < 0.0001).

Conclusion:

We could not state that LITT treatment is an optimal alternative therapy for difficult-to-access brain tumors due to the lack of systematic data that were reported in our pooled studies. However, our results identified a positive effect in lowering the absolute risk of adverse events compared with SRS therapy. Therefore, randomized trials are encouraged to ascertain LITT role, as upfront or postoperative/post-SRS therapy for brain tumor treatment.
A resource-based view of quantum information
Authors: Bennett C.H.
Published: March 2021

We survey progress in understanding quantum information in terms of equivalences, reducibilities, and asymptotically achievable rates for transformations among nonlocal resources such as classical communication, entanglement, and particular quantum states or channels. In some areas, eg source coding, there are straightforward parallels to classical information theory; in others eg entanglement-assisted communication, new effects and tradeoffs appear that are beginning to be fairly well understood, or the remaining uncertainty has become focussed on a few simple open questions, such as conjectured additivity of the Holevo capacity. In still other areas, e.g. the role of the back communication and the classification of tripartite entanglement, much remains unknown, and it appears unlikely that an adequate description exists in terms of a finite number of resources.
Graph-based simulation of quantum computation in the density matrix representation
Authors: Viamontes G. F. , Markov I. L. , Hayes J. P.
Published: March 2021

Quantum-mechanical phenomena are playing an increasing role in information processing, as transistor sizes approach the nanometer level, and quantum circuits and data encoding methods appear in the securest forms of communication. Simulating such phenomena efficiently is exceedingly difficult because of the vast size of the quantum state space involved. A major complication is caused by errors (noise) due to unwanted interactions between the quantum states and the environment. Consequently, simulating quantum circuits and their associated errors using the density matrix representation is potentially significant in many applications, but is well beyond the computational abilities of most classical simulation techniques in both time and memory resources. The size of a density matrix grows exponentially with the number of qubits simulated, rendering array-based simulation techniques that explicitly store the density matrix intractable. In this work, we propose a new technique aimed at efficiently simulating quantum circuits that are subject to errors. In particular, we describe new graph-based algorithms implemented in the simulator QuIDDPro/D. While previously reported graph-based simulators operate in terms of the state-vector representation, these new algorithms use the density matrix representation. To gauge the improvements offered by QuIDDPro/D, we compare its simulation performance with an optimized array-based simulator called QCSim. Empirical results, generated by both simulators on a set of quantum circuit benchmarks involving error correction, reversible logic, communication, and quantum search, show that the graph-based approach far outperforms the array-based approach for these circuits.
Quantum lower bound for recursive Fourier sampling
Authors: Aaronson S.
Published: March 2021

Erratum:
Assessing the Orbital Contribution in the “Spodium Bond” by Natural Orbital for Chemical Valence-Charge Displacement Analysis
Authors: Ciancaleoni Gianluca , Rocchigiani Luca
Published: March 2021

The term “spodium bond” (SpB) has been recently proposed for the non-coordinative interaction between a polarised group 12 metal and a mild Lewis base. In most of the systems showing short metal-donor distances, however, SpB coexists with other weak interactions, including hydrogen and halogen bonding. Here we show their mutual importance can be probed by dissecting the orbital component of the interaction through the Natural Orbital for Chemical Valence-Charge Displacement analysis. NOCV-CD gives us straightforward snapshots of relative energies and electrons involved, either for model and “real” adducts, allowing us to demonstrate the lack of a direct correlation between a favourable metal-base distance and the presence of an orbital contribution for the SpB.
Prevalence of depression, anxiety and stress symptoms and their association with quality of sleep and loneliness in the general population during the COVID-19 pandemic in India
Authors: Lavanya L  , Iniyan Selvamani  , Venkatraman Natarajan  , Raman K
Published: March 2021

The impact of mental health due to coronavirus infection caused by SARS -2 COVID -19 is severe. The spread of the virus has been reported not only in India but also in many countries worldwide. The lockdown amid the recent COVID-19 widespread has brought about a change in the way of life in most people. The self-isolation and social distancing measures may result in individuals becoming more anxious, angry, stressed, disturbed and depressed. The aim of our study is to assess the prevalence of depression, anxiety and stress and their association with quality of sleep and loneliness in the general population during the Covid 19 pandemic. The study design was a cross-sectional study, and information and data were collected through an online questionnaire using Google forms. A total of 726 participants had completed the online questionnaire from which socio-demographic details, Depression, Anxiety & Stress (DASS 21), Insomnia (ISI) and Loneliness (UCLA) were assessed. The overall prevalence rate of depression, anxiety, stress, insomnia and loneliness was 27%, 24.9%, 12.1, 16.9% and 8.8%, respectively. Age, education, occupation and living status had a strong association with depression. Concerning anxiety, age, marital status, living status and past history of medical illness were positively correlated. Stress had a strong association with education. Insomnia was significantly associated with depression, anxiety, stress and loneliness. Anxiety, stress and insomnia had a strong association with loneliness. This study shows that the psychological impact of the COVID-19 pandemic in the general population is very high. Since loneliness and insomnia have been shown to be associated with psychological symptoms, screening for and addressing them can help in reducing the psychological impact of COVID-19.
Selenium and alpha-tocopherol reduces ϑluoride induced oxidative stress in brain and muscle of mice
Authors: Chandra Shakar Reddy N  , Pratap Reddy K
Published: March 2021

Fluoride is one of the common environmental pollutants. Its excessive exposure results in a wide array of toxicity phenotypes including oxidative stress, skeletal and soft tissue damage etc. Antioxidants such as Selenium (Se) and α-tocopherol are attractive agents for oxidative stress prevention because of their safety profile and wide availability. It is known that in combination, Se and alpha-tocopherol act synergistically against ROS formation. This study investigated the protective effects of selenium (05 µg/kg BW) and Alpha-tocopherol (2 mg/kg BW) on markers of oxidative stress in brain and muscle of mice exposed to sodium fluoride (20mg/kg BW) for 15 days. The results showed significant (p<0.05) alterations in markers of oxidative stress includes; an increase in xanthine oxidase activity and lipid peroxidation, a decline in SOD, CAT, GST and GPx activities in fluoride exposure group in comparison with control group indicates oxidative stress induced by fluoride. These changes were reversed modestly in Se and alpha-tocopherol alone treated groups and significantly  (p<0.05) in the combinedly treated group indicating synergistic action in mitigation of fluoride effect.
MENGENAL DAN MENGEMBANGKAN SEKOLAH RAMAH ANA
Authors: Sunarti Sunarti
Published: March 2021

Child-friendly schools are the schools coveted by every parent and government. The child-friendly school policy begins with the desire of the community to allow schools to fully grant children's rights in their schools. Child-friendly schools can be implemented in everyday life if they receive the attention and support of all parties. A child-friendly school can become a reality if supported by at least three aspects, including: appropriate school programs; a supportive school environment; and aspects of adequate facilities
Penerapan Corporate Social Responsibility (Csr) Terhadap Profitabilitas Perusahaan (Studi Kasus Pada Pt Bank Danamon Indonesia,Tbk)
Authors: Razak Linda Arisanty , Pasigai Muh Aris , Khatimah Husnul
Published: March 2021

This study aims to analyze differences before and after the implementation of a CSR program on profitability carried out by PT. Bank Danamon Indonesia, Tbk. The type of research used in this research is quantitative descriptive research. Data obtained by documentation techniques in the form of financial statements of PT. Bank Danamon Indonesia Tbk before the implementation of CSR in 2002-2009 and after the implementation of CSR in 2010-2017. The calculation technique used in this study is to calculate the percentage of profitability ratios (ROA) of PT. Bank Danamon Indonesia Tbk. While the data analysis techniques used in this study used descriptive statistical tests and tested hypotheses with the Paired Sample T Test analysis method using a tool in the form of SPSS 23.  The results showed that there were no differences before and after the implementation of CSR. There is no difference in profitability measured by ROA allegedly because social activities and environmental activities as a form of corporate responsibility for the surrounding environment and social are not good enough so that the impact on the company has not been seen. Besides, the types of banking companies that do not have a direct impact on natural resources also can be one of the factors there is no difference in profitability at PT. Bank Danamon Indonesia Tbk.
PENGARUH KOMPETENSI, INDEPENDENSI, DAN PROFESIONALISME AUDITOR TERHADAP KUALITAS AUDIT DENGAN ETIKA AUDITOR SEBAGAI VARIABEL MODERASI
Authors: Indah Azhari Sri Rahayu , Junaid Asriani , Tjan Julianty Sidik
Published: March 2021

The aim of this research is to analyse the influence of competence, independence, and professionalism on audit quality. It also analyses how the auditor ethics can moderate those independent variables to dependent variable. This research carried out on the representative of Badan Pengawasan Keuangan dan Pembangunan (BPKP) of West Sulawesi Province with 75 auditors as the respondent. The study used questionnaire as the data collecting method. Then it analysed by using multiple regression analyses dan moderated regression analysis (MRA). The results of the reseach showed that competence, independence, and professionalism effect significantly the audit quality. Auditor ethics is able to moderate the influence of competence and independence to audit quality. Auditor ethics is unable to moderate the influence of professionalism to audit quality.
PENGARUH TEKNOLOGI INFORMASI, KEAHLIAN PEMAKAI DAN INTENSITAS PEMAKAIAN TERHADAP KUALITAS INFORMASI AKUNTANSI PADA PT. BANK RAKYAT INDONESIA (PERSERO), TBK MAKASSAR
Authors: Azizah Mirdin Andi Azzah , Modding Basri , Mursalim Mursalim
Published: March 2021

This research is using quantitative study aimed to see the influence of information technologi use, user expertise, and the intensity of usage on the quality of accounting information. The population of this study was PT Bank Rakyat Indonesia (Persero), Tbk, Makassar Branch. The selection of the sample with total sampling methods. The data used in this study of primary data. Data analysis techniques using multiple regression analysis. The results of this study indicate that information technologi use, user expertise, and the intensity of usage have a positive effect and significant on quality of accounting information. Keyword: Information Technologi Use, User Expertise, The Intensity Of Usage, and Quality Of Accounting Information
PENGAWASAN ANGGARAN DITINJAU DARI BUDAYA LOKAL MAKASSAR DALAM KONSEP GOOD GOVERNANCE
Authors: Sucipto Rahman Muh Nur , Nassaruddin Fadliah , Lannai Darwis
Published: March 2021

The purpose of this study is to determine the correlation between good governance and siri 'napacce in guarding the realization of village funds and to know the application of culture and local wisdom of siri' napacce in carrying out their duties and responsibilities as village officials in Pacellekang Village, Pattallassang District, Gowa Regency.This research is a qualitative research with an ethnographic approach. The data source of this study is primary data in the form of direct interviews to several informants and subjects in the form of data from the research location. Furthermore, the data collection methods used were in-depth interviews, documentation and recording. Then, data processing and analysis techniques are qualitative analysis by building conclusions with the stages of data collection, triangulation data analysis and final conclusions.The results of this study indicate that the supervision of ADD management in Pacellekang Village is already good, in accordance with the principles of good governance. Starting at the planning stage, the implementation stage, and the accountability stage, the administration and financial management processes have been implemented in accordance with the principles of good governance, although there are still a few shortcomings. In addition, accountability and reporting are also direct to interested parties based on the cultural values of siri 'na pacce which can increase supervision of village fund allocation management (ADD) because as it is known that those who can participate in monitoring other than the community, the central government, are ourselves.Keywords: Supervision , Honesty, Village Fund Allocation, Siri 'na Pacce
IN THE MIDST OF DISASTER: An Architectural Response to Pre-Established Disaster Relief
Authors: Cawdron Melissa
Published: March 2021

In the midst of a natural disaster communities look for critical help and support. Wellington city is particularly vulnerable with one main road to and from the city, where a rupture in the Hikurangi Subduction Zone could cause an AF8 scenario, cutting Wellington City off from many critical resources. Civil Defence Centers were used until 2016 as a means of community support in the midst of such a scenario, however these centers have now been removed, with emphasis placed on the individual to be able to fend for themselves.

This thesis researches into how analysis of past disasters and a community’s response can reveal how architecture is able to be developed with disaster relief functionality in mind. Through critical analysis into current disaster responses both nationally and internationally and how they perform when disaster strikes, it is discovered that a community is left vulnerable in the key 24-72 hours post event. Architecture has the ability to bridge serious gaps in current relief plans and through processes taken in this thesis, final research and design frameworks have been established and applied into the developed design outcome.

Taking into consideration the human condition alongside locational and demographical aspects, the need for at risk locations to be pre-prepared and for design to be developed with a secondary disaster relief functionality was highlighted. The objective of this research is to develop an architectural response that offers a means of pre-established disaster relief for the city of Wellington, opening up discussion and further critical analysis into current disaster relief responses within New Zealand. The design works alongside established government plans, and potential post-disaster relief efforts in order to produce a final design that connects with multiple responses following a disaster.

Through understanding how architecture reacts in the midst of a disaster, with research closely following alongside design a framework is achieved in order to produce a design that will support Wellington’s residents both pre and post disaster. This research changes the way architecture responds to disasters and disaster relief, to provide critical support in the initial 24-72 hour period following a disaster regardless of demographics.
Telessaúde como eixo organizacional no enfrentamento ao COVID-19
Authors: Campelo Victor Eulálio Souza
Published: March 2021

A rápida progressão da pandemia do COVID-19 apresenta um verdadeiro desafio para o mundo inteiro. Uma das estratégias mais importantes para reduzir e mitigar o avanço da epidemia são as medidas de distanciamento social; nesse contexto que a telemedicina pode ajudar e fornecer suporte aos sistemas de saúde, especialmente nas áreas de saúde pública, prevenção e práticas clínicas, assim como em outros setores, como o teletrabalho e suporte em treinamento e educação. A telemedicina pode ter diferentes formas: Teleconsulta; Teletriagem; Telemonitoramento; Chatbots, tele-educação, etc. A partir desse cenário, a telessaúde pode tornar-se a organizadora do fluxo de pessoas, de informações e de insumos, inclusive financeiros, entre os pontos de atenção, qualificando o deslocamento físico de pacientes, com redução de custos e riscos. Dessa forma, garante o uso das melhores práticas assistenciais, ampliando a qualidade e aumentando a resolutividade, expandindo assim a integralidade do cuidado.
Pengaruh pijat oksitosin terhadap frekuensi His, durasi His pada ibu inpartu di BPM ASRI Tuban
Authors: Qonitun Umu , Qiftiyah Mariyatul
Published: March 2021

Persalinan sangat penting dilakukan observasi HIS yaitu dengan melihat frekuensi dan durasi His sehingga proses persalinan kala I akan berlangsung dengan mulus, baik pada primi maupun multi (Astuti, 2013). Jika lama persalinan kala I berlangsung tidak normal maka masalah potensial dimungkinkan terjadi. Dan jika kontraksi uterus  tidak baik maka pembuluh darah di daerah plasenta tidak terjepit dengan maksimal, hal ini yang mengakibatkan perdarahan postpartum (Studi, Keperawatan, Perintis, & Bakti, 2016). Tujuan penelitian ini untuk mengetahui pengaruh pijat oksitosin terhadap frekuensi his dan durasi his pada ibu inpartu di BPM ASRI Tuban.. Desain penelitian ini pra eksperimental (static-group comparation design) dengan pendekatan kohort, populasinya seluruh ibu bersalin normal di BPM ASRI Tuban bulan februari – mei 2019 sejumlah 60 responden, dengan menggunakan teknik sampling sistematik random sampling didapatkan jumlah sampel 52 responden dibagi menjadi kelompok kontrol (26 responden) dan kelompok eksperimen (26 responden). Variabel independen Pijat oksitosin sedangkan variabel dependen frekuensi his dan durasi his. Analisa data menggunakan  independent sample t-Test dengan SPSS Vs 23.  Frekuensi his pada kelompok eksperimen sebagian besar 14 responden (53,8%) mendapatkan Frekuensi his 4 kali dalam 10 menit dan ada Pengaruh Pijat Oksitosin terhadap Frekuensi His  pada Ibu inpartu di BPM ASRI Tuban Tahun 2019. Sedangkan durasi his pada kelompok eksperimen sebagian besar 16 responden (61,5%) mendapatkan durasi his >40 detik dan ada Pengaruh Pijat Oksitosin terhadap durasi His  pada Ibu inpartu di BPM ASRI Tuban Tahun 2019. Terdapat pengaruh pijat oksitosin terhadap Frekuensi his dan durasi his pada ibu inpartu di BPM ASRI Tuban, diharapkan pada tenaga kesehatan khususnya para bidan dapat menerapkan pijat oksitosin pada persalinan kala I yang mana akan memperlancar proses persalinan dan dapat mengurangi kejadian kematian ibu.
Maximizing Indonesian Students’ Readability by Using English Textbooks
Authors: Pahamzah John , Syafrizal Syafrizal , Gailea Nurhaedah , Zakaria Zakaria
Published: March 2021

The objective of the research was to find out whether the textbook provided by teachers had fulfilled the criteria of having a good book. The researcher used qualitative research, particularly content analysis research design. To answer the research questions, the researcher analyzed the contents of textbooks, evaluated by using a checklist adapted from the Cunningsworth checklist and writing a report. The researcher interpreted data to determine whether the textbook met the criteria for a good textbook. The results of the analysis showed that there were no textbooks that met the criteria for good books. The first result showed that the Think Global Act Locally met the criteria with a percentage of 51.92%, the coverage was 66.67% for aims and approaches, 33.33% for design, 40% for language content, 55.56% for skills, 66.67% for topics, 80% for methodology, 0% for teacher's book and 75% for practical considerations. The second was "English on Sky 3" met the percentage of 59.62%, the coverage was 66.67% for aims and approaches, 50% for design, 60% for language content, 72.22% for skills, 66.67% for the topic, 80% for methodology, 0% for Teacher's book and 50% for practical considerations. Meanwhile, Practices Your English Competence 3 met the percentage of 42.31%, the coverage was 33.33% for aims and approaches, 50% for design, 60% for language content, 33.33% for skills, 66.67% for topics, 60% for methodology, 0% for teacher's book and 50% for practical. In conclusion, there were no criteria that achieved good criteria and three out of eight criteria were considered fair.
Birth Place Preference and Birth Attendant Selection during Covid-19 Pandemic in Tarakan City, North Kalimantan
Authors:   Department of Midwifery, Universitas Borneo Tarakan, Indonesia, Ariyanti Ririn , Yulianti Ika ,   Department of Midwifery, Universitas Borneo Tarakan, Indonesia, Padlilah Rahmi ,   Department of Midwifery, Universitas Borneo Tarakan, Indonesia
Published: March 2021

Background: Childbirth assistance during the Covid 19 pandemic needs attention to reduce maternal mortality rate and infant mortality rate. This study aimed to analyze the factors influencing the choice of place and birth attendant during the Covid 19 pandemic in Tarakan City. Subjects and Method: This was an observational analytic study with a case control design. The study was carried out in Tarakan, North Kalimantan, Indonesia, in 2020. A sample 100 pregnant women was selected by quota sampling. The dependent variable was the place and birth attendant. The independent variables were place of working, family income, distance to the place of delivery and knowledge. The data were collected by questionnaire using google form. The data were analyzed by a multiple logistic regression. Results: The choice of place of delivery during the COVID-19 pandemic was influenced by place of working (OR= 1.61; 95% CI= 1.49 to 17.02; p= 0.009), family income (OR= 2.57; 95% CI= 3.74 to 45.37; p <0.001), distance travel (OR= 1.53; 95% CI= 0.07 to 0.73; p= 0.014) and knowledge (OR= 1.66; 95% CI= 1.58 to 17.31; p= 0.007). The choice of birth attendant was also influenced by place of working (OR= 1.32; 95% CI= 1.17 to 12.40; p= 0.027), family income (OR= 2.28; 95% CI= 2.94 to 32.23; p <0.001), distance traveled (OR= -1.42; 95% CI= 0.08 to 0.78; p= 0.016) and knowledge (OR= 1.88; 95% CI= 2.05 to 20.85; p= 0.002). Conclusion: The choice of place and birth attendant is influenced by place of working, family income, distance traveled and knowledge. Keywords: place of delivery, birth attendant, pandemic covid 19 Correspondence: Ririn Ariyanti. Department of Midwifery, Universitas Borneo Tarakan. Jl. Amal Lama 1 Tarakan, Kalimantan Utara. Email: ririnariyanti.- midwife@gmail.com. Mobile: +6285345553- 400
OUTSOURCING AS AN EFFECTIVE FORM OF RECRUITMENT
Authors:   State University of Management, Kuzmina E.Yu. , Soklakova I.V. ,   Moscow economic Institute
Published: March 2021

This article discusses the possibilities of using modern organization outsourcing in the field of HR. The article analyzes the company’s ability to attract temporary specialists. The example of a production company shows the influence of various factors on the recruitment of personnel, such as seasonal demand, the actions of competitors, the needs of the company itself in specialists of different profiles. The advantages and disadvantages of using outsourcing are highlighted. The effectiveness of outsourcing practices in hiring staff is proved. It is emphasized that such important goals of outsourcing are achieved as improving the quality of goods and services, increasing the financial stability of the enterprise while maintaining its core activities. Self-employment creates additional risks associated with non-compliance with professional qualifications, lack of necessary experience, and unfair performance of official duties. The comparison of budgets for self-employment and outsourcing, which take into account the additional costs of finding and hiring temporary employees, as well as their training, concludes that it is profitable to attract temporary employees, if it is possible to conclude an outsourcing contract. But in terms of reducing costs and oversupply of the labor market, it is possible to hire on their own, since this does not require additional training of temporary staff, the salary Fund and payments to the budget will decrease, and the lack of requirements for high qualification of the necessary workers will significantly simplify their search and hiring.
IMPROVING THE TECHNICAL LEVEL OF AGRICULTURAL AND FLOUR MILLS AS A DIRECTION OF INCREASING EXPORTS WHEAT AND ITS PROCESSED PRODUCTS
Authors:   GAOU VO MGPU, Magomedov M.D. , Stroyev V.V. ,   GAOU VO MGPU
Published: March 2021

The article defines the technical level of production, indicates the great physical and moral wear of machinery and equipment of agricultural and flour mills. Considered for what purposes machines are used in wheat production, it is recommended to agricultural and flour-milling enterprises to allocate preferential credit at the level of percentage inflation. All technological methods used in wheat production are presented, the main types of products produced at flour mills are considered. Are indicated as having shortcomings in the introduction of advanced machinery in the country’s flour mills. Shows the importance of production organization in the use of advanced equipment and technology at the enterprises under consideration.
USING DISCRIMINANT MODELS TO ASSESS THE LIKELIHOOD OF FINANCIAL STATEMENT FALSIFICATION ON THE EXAMPLE OF OIL-ENERGY COMPLEX ORGANIZATIONS
Authors:   Financial University under the Government of the Russian Federation, Merkulina I.A. , Gorbachev A.A. ,   Financial University under the Government of the Russian Federation
Published: March 2021

Using discriminant models to assess the likelihood of financial statement falsification is actual nowadays. Organizations in different economic sectors can make misstatements in their financial statements. Such actions from management of organization may lead to confusion of audit workers, board members. Moreover, this actions don’t allow to assess their tendency for a possible bankruptcy adequately, using special models. To solve these problems, models to assess the likelihood of financial statement falsification were created. In this article demonstrates the use of Beneish, Roxsas and Safonova – Silchenko regression models. Subject of analysis is financial statements of 6 oil-energy complex organizations, including oil and gas, electricity and coal industries. As a result of this analysis, conclusions are drawn on the use of these models.
POST-CRISIS DEVELOPMENT OF ENTREPRENEURSHIP IN THE REPUBLIC OF KAZAKHSTAN
Authors:   Peoples' Friendship University of Russia, Argyngazinov A.A.
Published: March 2021

This article discusses current trends and the post-crisis development of entrepreneurship in the Republic of Kazakhstan in the context of the spread of the global coronavirus pandemic, which has led to a slowdown in business activity in national economies and the growth of the global economy as a whole.
METHODS OF FORECASTING CASH FLOWS OF NON-STATE CORPORATE STRUCTURES
Authors:   Financial University under the Government of the Russian Federation, Bondarchuk N.V.
Published: March 2021

Global changes in the operating conditions of non-state corporate structures, caused by the forced vacation in the spring of 2020, caused a sharp reduction in cash receipts and sharpened the attention of financiers to determine the future values of receipts, Disposals and cash balances. The author of the article has proved what types of economic and professional interests of the main three groups of users of financial and economic information-owners, top managers and financiers- are associated with the interest in obtaining high-quality information about the future values of cash flows of non-state corporate structures. The article explains why it is appropriate to use the term forecasting rather than planning in relation to predicting the future value of indicators that characterize cash flows. In addition, referring to the opinion of well-known foreign scientists and financial practitioners, the author provides arguments in favor of the fact that forecasting cash flows, rather than profit, is of paramount importance in modern conditions. The author’s definition of the cash flow forecast is given, revealing its content in the following projections: as a result of the process, as a document, as a set of methodological techniques and as a source of information for management decisions. The author conducted a study of theoretically developed and applied in practice methods of forecasting cash flows. In the results, the author systematized by application areas, and briefly described the mechanism for applying the main methods of forecasting cash flows that can be used for modern corporate structures. In particular, the use of the situational analysis method, expert assessment method, and the method of processing spatial, temporal, and spatio-temporal aggregates, as well as methods based on their combination and common in modern financial practice, such as forecasting cash flows based on proportional dependencies, was considered; budgeting of cash flows based on the technology of budgeting and cash flow design based on simulating a set of planned business operations on the used versions of accounting programs. In conclusion, the author concludes that there is no ideal method for forecasting cash flows and the need to take into account the information interests of users, the complexity of application, the availability of high-quality information and compliance with the management culture of the corporate structure in which forecasting is performed.
Minería Química a cielo abierto y políticas ambientales en la cuenca del río San Juan (Nicaragua-Costa Rica) desde una Perspectiva Jurídica
Authors:   Universitary European Institute, Florencia, Italia, Boeglin Nicolás
Published: March 2021

A la confluencia de una geografía, siempre caprichosa, y del derecho, mucho menos caprichoso, nos encontramos ante un polémico proyecto de minería química a cielo abierto ubicado en la zona norte de Costa Rica (Las Crucitas), de la empresa canadiense Infinito Gold. Este proyecto se sitúa en un punto fronterizo con Nicaragua caracterizado por altas precipitaciones y en directa relación hidrográfica con la cuenca internacional del Río San Juan. Se trata de una zona con características peculiares propias del trópico húmedo en la que se pretendía ubicar este proyecto (que se hubiese convertido en el más grande proyecto minero metálico a cielo abierto en Centroamérica). Esta información científica no fue debidamente incorporada en los estudios de la Secretaría Técnica Nacional para el Ambiente (SETENA) de Costa Rica o de la misma Empresa Infinito Gold, exponiéndose así a Costa Rica, como Estado, a las reglas y regulaciones internacionales en la materia. A nivel nacional, el Servicio Nacional de Aguas Subterráneas, Riego y Avenamiento (SENARA) nunca fue solicitado para realizar un estudio de campo sobre las aguas subterráneas en esa zona, y el Estudio de Impacto Ambiental (EIA) aprobado por la SETENA se basó en un estudio del 2002 cuando el proyecto tenía una profundidad de 15 m, mientras que le proyecto “ampliado” (en diciembre del 200/) conlleva profundidades de hasta 65 m. El proyecto se encontraba suspendido temporalmente debido a varios recursos presentados ante la Sala Constitucional de Costa Rica después de la publicación en la Gaceta Oficial de un no menos polémico Decreto Ejecutivo (firmado el 13 de octubre del 2008 por el Presidente de Costa Rica Oscar Arias Sánchez y su Ministro del Ambiente, Roberto Dobles) que declara este proyecto “de interés público y conveniencia nacional”. En una polémica decisión del 16 de abril del 2010, la Sala Constitucional rechazó los recursos presentados, dado luz verde al proyecto minero. Recursos pendientes presentados ante el Tribunal Contencioso Administrativo lograron suspender el proyecto, en una contundente decisión dictada por este órgano de justicia en noviembre del 2010. No obstante, el proyecto Crucitas fue mencionado en distintas ocasiones por Nicaragua, tanto en el plano bilateral, como en sus contiendas contra Costa Rica ante la Corte Internacional de Justicia.
Gestión del agua en cuencas transfronterizas México-Estados Unidos: algunos elementos conceptuales para su estudio
Authors:   El Colegio de la Frontera Norte en Monterrey. México, Castro Ruiz José Luis , Cortez Lara Alfonso Andrés ,   El Colegio de la Frontera Norte en Mexicali. México, Sánchez Munguía Vicente ,   El Colegio de la Frontera Norte en Tijuana. México
Published: March 2021

Bajo las tendencias actuales de competencia por el agua y su escasez relativa, las fronteras se han vuelto espacios críticos de la relación entre países y comunidades, pudiendo arribar a situaciones en las que el conflicto se tiende a agudizar, pero donde también pueden surgir opciones para la cooperación en torno al mejor aprovechamiento y manejo de los recursos hídricos compartidos. Las cuencas hídricas transfronterizas entre México y Estados Unidos son espacios donde la competencia, el conflicto y la cooperación binacional, han estado presentes, generando condiciones cuya complejidad se hace imprescindible abordar y estudiar, con el propósito de construir una base que sustente la búsqueda de esquemas de manejo sustentable y compartido del agua para mantener los equilibrios entre disponibilidad y demanda, así como la cooperación binacional. En este trabajo se exploran algunos marcos teórico-metodológicos de utilidad en el análisis de la gestión transfronteriza del agua, y su posible adaptación a cuencas hídricas transfronterizas entre ambos países a través del caso de la Cuenca Alta del Río San Pedro en la frontera entre Sonora, México y Arizona, Estados Unidos.