bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Cost/Benefit Review of Completion Choices in the Williston Basin Using a Hybrid Physics-Based-Modeling/Multivariate-Analysis Approach
Authors: Mayerhofer Michael , Oduba Oladapo , Agarwal Karn , Melcher Howard , Lolon Ely , Bartell Jennifer , Weijers Leen 
Published: March 2018

Summary
In the Williston Central Basin, a well-completion design has a significant effect on well productivity and ultimate recovery. More than 12,000 horizontal wells have been drilled and completed while completion practices continue to vary widely across the basin. Several companies have adopted slickwater-only designs, whereas others have dramatically increased proppant mass. Completion strategies have differed depending on the area in the basin. The objective of this paper is to discuss the effect of various completion changes in the Central Basin and determine which particular change delivers the most “bang for the buck” using a metric of dollars spent per barrel of oil (USD/BO).
The approach centered around multivariate analysis (MVA) from an extensive petrophysical/completion/production database to verify what completion and petrophysical parameters independently drive production in different areas. Although MVA has been used by the authors and many others before, statistical models are limited by their ability to provide predictive relationships (mostly simple linear regressions, and unreliable beyond the data range). This paper provides a novel hybrid approach that uses calibrated relationships from physics-based modeling (combination of fracture and numerical reservoir modeling) between completion parameters and production response in combination with statistical MVA results. Specifically, the physics-based model is calibrated or “history matched” to a measured production/completion-parameter response as provided by MVA, thus delivering a constrained and more physically realistic production response to suggested completion changes. This model is then coupled with a completion-cost model to determine which completion method is the most effective to lower USD/BO.
Many common completion-parameter changes, such as increasing stage intensity, moving to plug-and-perforate cemented-well designs, increasing injection rate, and increasing proppant mass per lateral foot and fluid volume per lateral foot, have a positive effect on production and are advantageous to lower USD/BO in all areas of the Middle Bakken and Three Forks. The new hybrid MVA approach indicates that pumping slickwater treatments with average proppant concentrations of 1 lbm/gal and treatment sizes from 545 to 750 lbm/ft at pump rates approaching 100 bbl/min through a stage length of 200 ft (50 stages for a 10,000-ft lateral) might be the economic optimum, provided there are no significant well-communication issues.
Comparison of Peng-Robinson Equation of State With Capillary Pressure Model With Engineering Density-Functional Theory in Describing the Phase Behavior of Confined Hydrocarbons
Authors: Liu Yueliang , Jin Zhehui , Li Huazhou Andy 
Published: March 2018

Summary
The Peng-Robinson equation of state (PR-EOS) (Robinson and Peng 1978) with capillary effect has been used extensively to describe the phase behavior of hydrocarbons under nanoconfinement in shale reservoirs. In nanopores, surface adsorption may be significant, and molecular distribution is heterogeneous. Although the PR-EOS cannot consider these effects, statistical thermodynamic approaches such as density-functional theory (DFT) can explicitly consider the intermolecular and fluid/surface interactions. In this work, we compare the phase behavior of pure hydrocarbons and mixtures in nanopores from the PR-EOS with capillary effect and engineering DFT. We apply the Young-Laplace (YL) equation, assuming zero contact angle to calculate the capillary pressure in the PR-EOS with capillary effect. On the other hand, we extend the PR-EOS to inhomogeneous conditions with weighted-density approximation (WDA) in engineering DFT.
For pure components, both approaches predict that the dewpoint temperature increases in hydrocarbon-wet nanopores. Although engineering DFT predicts that the confined dewpoint temperature approaches bulk saturation point when pore size approaches 30 nm, the saturation point obtained from the PR-EOS with capillary effect approaches bulk only when the pore size is as large as 1000 nm. With engineering DFT, the critical points in nanopores deviate from those in bulk, but no change is observed from the PR-EOS with capillary-effect model. The difference on the dewpoint temperature between the PR-EOS with capillary effect and engineering DFT decreases as the system pressure approaches the critical pressure. At low-pressure conditions, the PR-EOS with capillary-effect model becomes unreliable.
For binary mixtures, both approaches predict that the lower dewpoint decreases and the upper dewpoint increases. More interestingly, phase transition can still occur when the system temperature is higher than the bulk cricondentherm point. Engineering DFT predicts that the confined lower dewpoint approaches bulk when pore size approaches 20 nm, whereas the dewpoint obtained from the PR-EOS with capillary effect approaches bulk only when the pore size is as large as 100 nm. This work illustrates that assuming homogeneous distributions in nanopores may not be appropriate to predict the phase behavior of hydrocarbons under nanoconfinement.
Historical changes in primary production in the Seto Inland Sea, Japan, after implementing regulations to control the pollutant loads
Authors: Nakai Satoshi , Soga Youhei , Sekito Satoshi , Umehara Akira , Okuda Tetsuji , Ohno Masaki , Nishijima Wataru , Asaoka Satoshi 
Published: March 2018

Abstract
A total pollutant load control system (TPLCS) was implemented in the Seto Inland Sea in 1979 to reduce the water pollution and the frequency of red tides. We estimated primary production from 1981 to 2010 to determine the effects of reducing the nutrient loadings from the surrounding land. While primary production has decreased overall in the Seto Inland Sea in response to the TPLCS and the associated reductions in the total nitrogen (T-N) and phosphorus (T-P) loads from land since 1981, the reductions were limited to 4 of its 11 subareas. Primary production has increased in the Harima Nada but has been stable in the Bingo Nada subarea, reflecting the fact that the T-N and T-P stocks have not decreased in these subareas over the study years. The inconsistent responses of the 11 subareas suggest that the characteristics of each subarea should be considered when environmental management measures are established and implemented in the Seto Inland Sea. The controls on the nutrient loadings according to the TPLCS should be modified to permit better management of this semi-enclosed sea.
Borehole water: a potential health risk to rural communities in South Africa
Authors: Taonameso S. , Mudau L. S. , Traoré A. N. , Potgieter N. 
Published: March 2018

Abstract
Sporadic outbreaks of diarrhoea in children in the Vhembe rural areas could be an indication of contamination in drinking water sources. In areas where improved water sources are used, not all rural households experience the benefits of these improved water sources. Water samples were collected from boreholes in three wards in the Vhembe District to determine microbiological risks over a 5-month period. A Water Point Mapping tool was used to indicate the borehole distribution. Water samples were taken from each functional borehole and analysed for total coliform and Escherichia coli counts, electrical conductivity, pH and temperature. A multiplex PCR protocol was used for identification of pathogenic E. coli. A total of 125 boreholes were identified of which only 12 were functional. Seven boreholes tested positive for total coliforms and E. coli counts. Four boreholes (33.3%) tested positive for diarrhoeagenic E. coli. Fifty-eight percent (58%) of water samples were without health risks, 17% were low risk and 25% could cause infection according to the South African water quality standards. This study indicated the importance of the role of the Municipalities and the maintenance plans that need to ensure that all boreholes are functional and provide safe drinking water to the rural communities.
Od reguł monastycznych do konstytucji zakonnych
Authors: SZEWCZUL BOŻENA 
Published: March 2018

Głównym zamiarem autorki artykułu jest ukazanie istoty i znaczenia konstytucji zakonnych, a tym samym przywrócenie właściwego im miejsca we współczesnym życiu zakonnym oraz należnego szacunku i docenienia ich wartości przez zakonników. Dlatego punktem wyjścia było dla niej odwołanie się do pierwszych uregulowań życia poświęconego Bogu w Kościele katolickim, czyli do reguł monastycznych, oraz uznania, a nawet kultu, jakim otaczali ich mnisi pachomiańscy, bazyliańscy, augustiańscy i benedyktyńscy, a także bracia mniejsi św. Franciszka z Asyżu. Z badań autorki wynika, że dawne reguły oraz współczesne konstytucje zakonne, które są ich kontynuacją, zasługują na uznanie. Są one mocno związane z Pismem Świętym, m.in. ukazując wierny sposób naśladowania Chrystusa, a także zawierają duchowość założyciela instytutu zakonnego, która wynika z charyzmatu udzielonego mu przez Ducha Świętego dla dobra członków instytutu i całego Kościoła. Przynależność do konkretnego instytutu wymaga zachowania i rozwijania myśli oraz zamiarów założyciela, czyli tzw. dziedzictwa duchowego, które można poznać głównie dzięki lekturze pozostawionych przez niego konstytucji.
Application of Advanced Electrochemical Methods with Nanomaterial-based Electrodes as Powerful Tools for Trace Analysis of Drugs and Toxic Compounds
Authors: Norouzi Parviz , Larijani Bagher , Alizadeh Taher , Pourbasheer Eslam , Aghazadeh Mostafa , Ganjali Mohammad Reza 
Published: March 2018

Background:The new progress in electronic devices has provided a great opportunity for advancing electrochemical instruments by which we can more easily solve many problems of interest for trace analysis of compounds, with a high degree of accuracy, precision, sensitivity, and selectivity. On the other hand, in recent years, there is a significant growth in the application of nanomaterials for the construction of nanosensors due to enhanced chemical and physical properties arising from discrete modified nanomaterial-based electrodes or microelectrodes.Objective:Combination of the advanced electrochemical system and nanosensors make these devices very suitable for the high-speed analysis, as motioning and portable devices. This review will discuss the recent developments and achievements that have been reported for trace measurement of drugs and toxic compounds for environment, food and health application.
Сrude Plant Extracts Mediated Polyphenol Oxidation Reactions in the Presence of 3-Methyl-2-Benzothiazolinone Hydrazone for the Determination of Total Polyphenol Content in Beverages
Authors: Morosanova Maria A. , Fedorov Anton S. , Morosanova Elena I. 
Published: March 2018

Background:
The consumption of antioxidants, including phenolic compounds, is considered
important for preventing the oxidative damage diseases and ageing. The total polyphenol content (TPC)
is the parameter used to estimate the quality of plant-derived products.

Methods:
Phenol oxidase activity of green bean (Phaseolus vulgaris) crude extract (in the presence of
hydrogen peroxide) and banana (Musa sp.) pulp crude extract has been studied spectrophotometrically
using catechol, gallic acid, caffeic acid, ferulic acid, and quercetin as substrates. All studied compounds
have been oxidized in the presence of green bean crude extract and hydrogen peroxide; all studied compounds
except ferulic acid have been oxidized in the presence of banana pulp crude extract. Michaelis
constants (Km) and maximum reaction rates (Vmax) have been determined for oxidation in the presence
of green bean crude extract and hydrogen peroxide (Km are 3.8×10-4 M, 1.6×10-3 M, 2.2×10-4 M,
2.3×10-4 M, 1.4×10-4 M and Vmax are 0.046 min-1, 0.102 min-1, 0.185 min-1, 0.053 min-1, 0.041 min-1 for
catechol, gallic acid, caffeic acid, ferulic acid, and quercetin, respectively) and for oxidation in the presence
of banana pulp crude extract (Km are 1.6×10-3 M, 3.8×10-3 M, 2.2×10-3 M, 4.2×10-4 M and Vmax
are 0.058 min-1, 0.025 min-1, 0.027 min-1, 0.015 min-1 for catechol, gallic acid, caffeic acid, and quercetin,
respectively). The influence of 3-methyl-2-benzothiazolinone hydrazone (MBTH) on the oxidation
reactions kinetics has been studied: Michaelis constants values decrease and maximum reaction rates
increase, which contributes to the increase in sensitivity of the determination.

Results:
Kinetic procedures of Total Polyphenol Content (TPC) determination using crude plants extracts
in the presence of MBTH have been proposed (time of analysis is 1 min). For gallic acid (used as
a standard for TPC determination) detection limit is 5.3×10-5 M, quantitation limit is 1.8×10-4 M, and
linear range is 1.8×10-4 - 1.3×10-3 M for green bean crude extract; detection limit is 2.9×10-5 M,
quantitation limit is 9.5×10-5 M, and linear range is 9.5×10-5 - 2.4×10-3 M for banana pulp crude extract.
Proposed procedures are characterized by higher interference thresholds for sulfites, ascorbic acid, and
citric acid compared to pure enzymes (horseradish peroxidase and mushroom tyrosinase) in the same
conditions. Compared with standard Folin-Ciocalteu (FC) method the procedures described in this work
are also characterized by less interference and more rapid determination.

Conclusion:
The procedures have been applied to TPC determination in tea, coffee, and wine samples.
The results agree with the FC method for tea and coffee samples and are lower for wine samples, probably,
due to sulfites interference.
Graphene Quantum Dots in Electrochemical Sensors/Biosensors
Authors: Faridbod Farnoush , Sanati Afsaneh L. 
Published: March 2018

Background:Graphene and its derivatives, as most promising carbonic nanomaterials have been widely used in design and making electrochemical sensors and biosensors. Graphene quantum dots are one of the members of this family which have been mostly known as fluorescent nanomaterials and found extensive applications due to their remarkable optical properties. Quantum confinement and edge effects in their structures also cause extraordinary electrochemical properties.Objective:Recently, graphene quantum dots besides graphene oxides and reduced graphene oxides have been applied for modification of the electrodes too and exposed notable effects in electrochemical responses. Here, we are going to consider these significant effects through reviewing some of the recent published works.
HUBUNGAN PENGETAHUAN IBU HAMIL TENTANG TABLET FE DENGAN KEJADIAN ANEMIA
Authors: Eza Fitria Nila 
Published: March 2018

<p><em>Maternal Mortality Rate (MMR) is one indicator of the success of health services in a country. Maternal deaths occur for several reasons, including anemia The purpose of this research is to know the relationship of knowledge of pregnant women with Fe tablet with anemia occurrence in jorong Koto Malintang Puskesmas Agam District 2014. This research is cross sectional research design conducted in Jorong Koto Malintang Puskesmas Kamih Agam on 23 s / d 29 August 2014. The sample in this study pregnant women in Jorong Koto Malintang 30 people. Univariate analysis has been done descriptive and bivariate analysis using chi-square test. The results showed 30 respondents classified as less knowledgeable (36.7%) and more than half of pregnant women (63.3%) suffered from anemia. The result of bivariate analysis with trust level 0,05 indicates a significant relationship between the existence of Knowledge about Tablet Fe Pregnancy with Genesis Anemia where value p = 0,002 (p = &lt;0,05). Can be concluded in this research there is a significant relationship between mother's knowledge about Fe tablet with anemia. It is expected to improve the knowledge of pregnant women about the importance of Fe tablets consumed by pregnant women during pregnancy to prevent anemia</em></p><p><em><br /></em></p><p>Angka Kematian Ibu (Maternal Mortality Rate / MMR) merupakan salah satu indikator keberhasilan pelayanan kesehatan di suatu negara. Kematian ibu terjadi karena beberapa alasan, termasuk anemia. Tujuan penelitian ini adalah mengetahui hubungan pengetahuan ibu hamil dengan tablet Fe dengan kejadian anemia di jorong Koto Malintang Puskesmas Kabupaten Agam tahun 2014. Penelitian ini adalah rancangan penelitian cross sectional yang dilakukan di Jorong Koto Malintang Puskesmas Kamih Agam pada 23 s/d 29Agustus 2014. Sampel dalam penelitian ini ibu hamil di Jorong Koto Malintang 30 orang. Analisis univariat telah dilakukan analisis deskriptif dan bivariat menggunakan uji chi-square. Hasilnya menunjukkan 30 responden tergolong kurang berpengetahuan (36,7%) dan lebih dari setengah ibu hamil (63,3%) menderita anemia. Hasil analisis bivariat dengan tingkat kepercayaan 0,05 menunjukkan adanya hubungan yang signifikan antara adanya Pengetahuan Tentang Tablet Fe Hamil dengan Anemia Genesis dimana nilai p = 0,002 (p = &lt;0,05). Dapat disimpulkan dalam penelitian ini ada hubungan yang signifikan antara pengetahuan ibu tentang tablet Fe dengan anemia. Diharapkandapat meningkatkan pengetahuan ibu hamil tentang pentingnya tablet Fe dikonsumsi oleh ibu hamil selama kehamilan untuk mencegah anemia. </p><p><em><br /></em></p>
PENGARUH AROMA TERAPI LAVENDER TERHADAP KUALITAS TIDUR LANSIA DI WISMA CINTA KASIH
Authors: Sari Dian , Leonard Devid 
Published: March 2018

<p><em>Bad sleep quality causes fatigue, difficulty concentrating, and often drowsiness in the elderly. The purpose of this study was to determine the effect of aroma of lavender therapy on the quality of elderly sleep at Wisma Cinta Kasih Padang. This type of research is quantitative with pre-experimental design using One Group Pretest-Posttest Design design using T-test dependent test. Sampling technique in this research use purposive sampling 30 responden as intervention group. The research to do in Wisma Cinta Kasih Padang. The results of the study found that all elderly (100%) had poor sleep quality before lavender aromatherapy and only 40% experienced poor sleep quality after lavender therapy. The statistical test obtained p value = 0.000, where there is influence of lavender therapy to sleep quality of elderly in Wisma Cinta Kasih Padang. The smell of lavender therapy can improve the quality of elderly sleep. Officer Wisma Cinta Kasih Padang in order to provide lavender therapy every 2 times / week at bedtime so as to improve the quality of elderly sleep.</em></p><p> </p><p>Kualitas tidur buruk menyebabkan kelelahan, sulit berkonsentrasi, dan sering mengantuk pada lansia. Tujuan penelitian ini adalah untuk mengetahui pengaruh aroma terapi lavender terhadap kualitas tidur lansia di Wisma Cinta Kasih Padang. Jenis penelitian ini adalah kuantitatif dengan desain preekperimental menggunakan rancangan One Group Pretest-Posttest Design menggunakan uji T-test dependent. Teknik pengambilan sampel dalam penelitian ini menggunakan purposive sampling 30 responden sebagai kelompok intervensi. Penelitian dilakukan di Wisma Cinta Kasih Padang. Hasil penelitian didapatkan seluruh lansia (100%) mengalami kualitas tidur yang buruk sebelum diberikan aromaterapi lavender dan hanya 40% yang mengalami kualitas tidur buruk sesudah diberikan aroma terapi lavender. Uji statistik didapatkan nilai p= 0,000, dimana terdapat pengaruh terapi lavender terhadap kualitas tidur lansia di Wisma Cinta Kasih Padang. Aroma terapi lavender dpat meningkatkan kualitas tidur lansia. Petugas Wisma Cinta Kasih Padang agar dapat memberikan terapi lavender setiap 2 kali/ minggu saat menjelang tidur sehingga dapat meningkatkan kualitas tidur lansia.</p>
FAKTOR YANG BERHUBUNGAN DENGAN PEMERIKSAAN DINI KANKER SERVIKS PADA WANITA USIA SUBUR
Authors: Rikandi Meta , Rita Nova 
Published: March 2018

<p><em>Based on cancer data in 13 laboratory pathology centers, cervical cancer is a type of cancer that has the largest number of patients in Indonesia, which is as many as 36% of patients. Data from Lubuk Buaya Community Health Center were obtained that performed IVA examination as many as 50 people (0,4%) from 14,199 target. This study aims to determine factors related to visual inspection of Acetic Acid on Women of Infertile Age in the Work Area of Lubuk Buaya Community Health Center in 2017. The study employed the survey deskriptif analitik ,the data analis used chi squre, population is 384 people fertile age women, the research sampel were 384 stratified random sampling. The result showed that 60.9% of women of childbearing age had never done cervical cancer early testing by IVA method, 45.6% knowledge was low, 50% negative attitude, 77,9% did not get husband support, 38,8% did not get health promotion . There was a significant relationship between knowledge (P = 0,000), attitude (P = 0,000), husband support (P = 0,000), promotion (P = 0,000) health with early cervical cancer screening by IVA method. Lubuk Buaya Community Health Center and local officers should pay more attention to the success of early cervical cancer screening program IVA method with the formation of cadres in each Urban Village so that the information can be given thoroughly.</em></p><p> </p><p>Berdasarkan data kanker di 13 pusat laboratorium patologi, kanker serviks merupakan jenis kanker yang memiliki jumlah penderita terbanyak di Indonesia, yaitu sebanyak 36% penderita. Data dari Puskesmas Lubuk Buaya didapatkan yang melakukan pemeriksaan IVA sebanyak 50 orang (0,4%) dari 14.199 sasaran. Penelitian ini bertujuan untuk mengetahui faktor-faktor yang berhubungan dengan pemeriksaan Inspeksi Visual Asam Asetat pada Wanita Usia Subur di Wilayah Kerja Puskesmas Lubuk Buaya tahun 2017. Metode yang digunakan <em>deskriptif analitik</em> dengan analisis data <em>chi square</em>, populasi adalah wanita usia subur yang berjumlah 384 orang. Pengambilan sampel yaitu stratified random sampling sebanyak 384. Teknik pengumpulan data dilakukan dengan wawancara kepada pasien dengan menggunakan kuesioner. Analisis data yang digunakan yaitu univariat dan bivariat. Hasil Penelitian didapatkan 60,9% wanita usia subur belum pernah melakukan pemeriksaan dini kanker serviks dengan metode IVA, 45,6% pengetahuan rendah, 50% sikap negatif, 77,9% tidak mendapat dukungan suami, 38,8% tidak mendapat promosi kesehatan. Ada hubungan yang bermakna antara pengetahuan(P=0,000 ), sikap(P=0,000), dukungan suami(P=0,000), promosi (P=0,000) kesehatan dengan pemeriksaan dini kanker serviks dengan metode IVA. Pihak Puskesmas Lubuk Buaya Padang serta petugas setempat harus lebih memperhatikan keberhasilan program pemeriksaan dini kanker serviks metode IVA dengan adanya pembentukkan kader pada setiap kelurahan sehingga pemberian informasi dapat diberikan secara menyuluruh.</p>