bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigation of Production-Induced Stress Changes for Infill-Well Stimulation in Eagle Ford Shale
Authors: Guo Xuyang , Wu Kan , Killough John 
Published: February 2018

Summary
Heterogeneous stress has a great effect on fracture propagation and perforation-cluster efficiency of infill wells. Principal-stress reorientation induced by depletion of parent wells has been investigated by previous numerical studies assuming uniform biwing fracture geometry along the horizontal wells. However, recent field diagnostics indicate that fractures along the horizontal wells are generally nonuniformly developed. In this study, we investigated the impact of depletion of parent wells with complex fracture geometry on stress states, and analyzed stimulation efficiency of infill wells by using an in-house reservoir geomechanical model for Eagle Ford Shale.
The model fully couples multiphase flow and rock deformation in three dimensions based on the finite-element method, incorporating complex fracture geometry and heterogeneity. We used this model to accurately characterize pressure distribution and to update stress states through history matching production data of parent wells in Eagle Ford Shale. Depletion of parent wells with nonuniform fracture geometries, which has not been researched thoroughly in the literature, is incorporated in the study. Results show that magnitude and orientation of principal stresses are greatly altered by depletion, and the alteration is uneven because of nonuniform fracture geometries. Stress reversal monitored at the center of the infill location starts after 1 year of production, and it takes another 8 months to be totally reversed for 90°. We also performed sensitivity studies to examine effects of parameters on changes of magnitude and orientation of stress at the infill location, and found that effects of bottomhole pressure (BHP), differential stress (DS), and fracture geometry of parent wells are all significant, whereas effects of the reservoir elastic property are limited. Effects of production time of parent wells are also noticeable in all sensitivity studies. This work analyzes stress-state change induced by depletion of parent wells in Eagle Ford Shale, and provides critical insights into the optimization for stimulation of infill wells.
Reservoir operation based on evolutionary algorithms and multi-criteria decision-making under climate change and uncertainty
Authors: Ehteram Mohammad , Mousavi Sayed Farhad , Karami Hojat , Farzin Saeed , Singh Vijay P. , Chau Kwok-wing , El-Shafie Ahmed 
Published: February 2018

Abstract
This study investigated reservoir operation under climate change for a base period (1981–2000) and future period (2011–2030). Different climate change models, based on A2 scenario, were used and the HAD-CM3 model, considering uncertainty, among other climate change models was found to be the best model. For the Dez basin in Iran, considered as a case study, the climate change models predicted increasing temperature from 1.16 to 2.5°C and decreasing precipitation for the future period. Also, runoff volume for the basin would decrease and irrigation demand for the downstream consumption would increase for the future period. A hybrid framework (optimization-climate change) was used for reservoir operation and the bat algorithm was used for minimization of irrigation deficit. A genetic algorithm and a particle swarm algorithm were selected for comparison with the bat algorithm. The reliability, resiliency, and vulnerability indices, based on a multi-criteria model, were used to select the base method for reservoir operation. Results showed the volume of water to be released for the future period, based on all evolutionary algorithms used, was less than for the base period, and the bat algorithm with high-reliability index and low vulnerability index performed better among other evolutionary algorithms.
Wavelet-based analysis of global index effects in air temperature and precipitation data of the Black Sea coast
Authors: Partal Turgay , Sezen Cenk 
Published: February 2018

AbstractThis study has been carried out to analyse the precipitation and air temperature data in the Black Sea region of Turkey to aid the understanding of the effects of global indices. Connections between the temperature or precipitation data and global atmospheric indices such as the North Sea Caspian Pattern (NCP), the Southern Oscillation Index (SOI) or the North Atlantic Oscillation (NAO) were studied. Results of the cross-correlations between air temperature and the NCP/NAO showed a strong relationship, especially in the winter period. The seasonal and annual differences for the temperature and precipitation data during the negative and positive phases of the global indices were computed. According to this, the annual total precipitations are higher during the positive NCP index than the negative NCP index, while the annual total precipitations are higher during the negative NAO index than the positive NAO index. On the other hand, wavelet analysis showed that some short-term periodicities in precipitation and temperature data are connected with the NAO and the extreme phases of the SOI. The influence of the NCP should also be considered for the short-term periodicities of the temperatures.
Hydrologic responses to climate change using downscaled GCM data on a watershed scale
Authors: Chen Chao , Kalra Ajay , Ahmad Sajjad 
Published: February 2018

AbstractThe changing climate has raised significant concerns for water resources, especially on a watershed scale. In this study, the downscaled global circulation model (GCM) products were further bias corrected and evaluated for the period of 1981–2099. Driven by the bias-corrected products, a calibrated Precipitation-Runoff Modeling System (PRMS) model was used to assess long-term hydrologic responses in the Lehman Creek watershed, eastern Nevada. The results of this study show: (1) the Parameter–elevation Regressions on Independent Slopes Model (PRISM) products offer a reliable replacement for limited observations for bias correction using quantile mapping (QM) technique; (2) average increases of 2.3 °C, 2.2 °C, and 35.1 mm in maximum temperature, minimum temperature, and precipitation by the end of century; (3) an annual streamflow increase of 7.6–11.6% with greatest increases in April and greatest decreases in June; (4) 20 days' earlier shift in annual peak flow – as indicated by the date of winter-spring center of volume – by the end of the century. For management of local water resources, this study provides a better understanding of variations in the streamflow rate and timing to a potential climate change in the study area as well as corresponding uncertainties in the estimation processes.
Abundance and community structure of ammonia-oxidizing bacteria in activated sludge from different geographic regions in China
Authors: He Rujia , Zhao Dayong , Xu Huimin , Huang Rui 
Published: February 2018

Abstract
Detailed ecological information on ammonia-oxidizing bacteria (AOB) in activated sludge of wastewater treatment plants (WWTPs) is very important to improve the efficiency of wastewater treatment. In this study, activated sludge samples were collected from seven municipal WWTPs located in seven cities in China, and real-time quantitative polymerase chain reaction (qPCR), as well as construction of clone libraries combined with correlation-based data analysis was performed. Further, the effect of geographic distribution and some water quality parameters on the ecological distribution of AOB in activated sludge from WWTPs were investigated. The geographic distribution, the influent concentration of total nitrogen (TN) and ammonia nitrogen (NH4+-N) had significant effects on the abundance of AOB (P &lt; 0.05). However, the community structure of AOB were not significantly affected by geographic distribution, but by water quality parameters including the concentrations of TN and NH4+-N. N. oligotropha lineage was the dominant AOB group in the wastewater treatment systems. The results obtained in this study provide useful information to understand some aspects of the ecological information and influencing factors of AOB in geographically distributed WWTPs.
Pengembangan model pembelajaran motorik kasar siswa taman kanak-kanak kelompok A
Authors: Pranoto Nuridin Widya 
Published: February 2018

Penelitian ini bertujuan menghasilkan model pembelajaran motorik kasar siswa TK kelompok A. Penelitian ini menggunakan desain penelitian pengembangan. langkah-langkahnya terdiri atas (1) potensi dan masalah, (2) pengumpulan data, (3) desain produk, (4) validasi desain, (5) revisi desain, (6) uji coba produk, (7) revisi produk, (8) uji coba pemakaian, dan (9) revisi produk. Penilaian kualitas produk melibatkan 3 orang ahli. Instrumen yang digunakan untuk mengumpulkan data adalah petunjuk umum wawancara, catatan lapangan, lembar evaluasi, angket skala nilai validasi, rubrik penilaian siswa, pedoman observasi permainan, dan pedoman observasi keefektifan permainan. Hasil penelitian berupa model pembelajaran motorik kasar siswa TK kelompok A yang terdiri atas 10 permainan, yaitu: (1) permainan tebak hewan, (2) permainan ular mencari makan, (3) permainan lari citah, (4) permainan mencari hewan, (5) permainan mengambil hewan, (6) permainan loncat kangguru, (7) permainan lompat bangau, (8) permainan lubang tikus, (9) permainan ikan sapu-sapu, dan (10) permainan undur-undur yang telah di validasi oleh ahli dan guru.Kata Kunci: model, pembelajaran, motorik kasar, TK kelompok A Rough learning motor model development kindergarten student group AAbstrackThis research aims to produce a gross motor teaching model for group A kindergarten students. The study used research and development design. consisting the steps of (1) the potential and problems, (2) data collection, (3) product design, (4) validation of the design, (5) revision of the design, (6) product trials, (7) product revision, (8) utility testing, and (9) product revision. 3 Product quality assessment involving experts. The instruments used to collect the data were a general interview guide, field notes, evaluation sheets, questionnaire of validation of the value scale, student assessment rubric, game observation guide, and game effectiveness observation guide. The result of the research is a model of gross motor teaching of group A kindergarten students consisting of 10 games, namely: (1) animal guessing game, (2) foraging snake game, (3) run cheetah game, (4) seeking animal game, (5) taking animal game, (6) jumping kangaroo game, (7) jumping stork game, (8) rat hole game, (9) fish broom game, and (10) undur-undur game that have been validated by experts and teachers.Keywords: models, learning, gross motor skills, kindergarten group A
Model tes keterampilan dasar dan kondisi fisik untuk mengidentifikasi bakat calon atlet bolabasket
Authors: Iqroni David 
Published: February 2018

Penelitian ini bertujuan untuk menyusun model keterampilan dasar dan kondisi fisik untuk mengidentifikasi bakat calon pebolabasket yang sahih dan handal berdasarkan karakteristik keberbakatan dalam cabang olahraga bolabasket. Jenis penelitian ini adalah penelitian pengembangan yang mengadaptasi beberapa langkah penelitian yang dikemukakan oleh Borg & Gall (2007: 590) sebagai berikut: (1) studi pendahuluan dan pengumpulan data, (2) perencanaan pelaksanaan penelitian, (3) pengembangan produk awal, (4) uji coba produk awal, (5) revisi untuk menyusun produk utama, (6) uji coba produk utama, (7) revisi untuk menyusun produk operasional, (8) uji coba produk operasional, (9) revisi produk akhir, (10) implementasi produk akhir. Uji coba produk awal dilakukan pada 40 anak. Uji coba produk utama dilakukan pada 124 anak. Uji coba produk operasional sebanyak 402 anak. Hasil penelitian dan pengembangan ini berupa model tes bakat untuk calon atlet bolabasket.. Model tes bakat dinyatakan layak digunakan karena memiliki tingkat validitas dan reliabilitas yang tinggi, dengan nilai rhitung lebih besar daripada nilai rtabel (0,195). Model tes bakat calon atlet bolabasket yang berupa skala penilaian (norma) yang dikemas dalam buku pedoman (modul) dapat digunakan sebagai pegangan para pelatih dan guru pendidikan jasmani dalam proses mengidentifikasi calon atlet dengan berbagai tingkat keberbakatan dan model tersebut efektif dan efisien. A Model of Basic Skills and Physical Condition Tests for Identify Candidate Talent Basketball Players AbstractThis study aims to develop a model of basic skills and physical condition to identify prospective talent basketball players which, is valid and reliable based on the characteristics of giftedness in the sport basketball. This research is research and development adapting some measures proposed by Borg and Gall (2007: 590) including: (1) preliminary studies and data collection, (2) planning the implementation of the research, (3) the initial product development, (4 ) initial product trials, (5) a revision to compose the main products, (6) the main product trials, (7) a revision to draft operational products, (8) product testing operations, (9) the revision of the final product, (10) the implementation of the final product. The Initial product trials were conducted to 40 students. The main product trials were conducted to 124 students. Product testing was conducted to 402 students. The results of the research and development is in the form of an aptitude test models for basketball players. The aptitude test model is declared fit for use because it has a high degree of validity and reliability, with a value greater than r-table 0,195. The developed test model for prospective basketball players in the form of a scale of ratings (norm) is packed in the manual. It can be used as a manual for the coaches and physical education teachers in the process of identifying candidates for athletes with different levels of giftedness and the model is effective and efficient.
Serum Sodium and Cognition in Older Community-Dwelling Men
Authors: Nowak Kristen L. , Yaffe Kristine , Orwoll Eric S. , Ix Joachim H. , You Zhiying , Barrett-Connor Elizabeth , Hoffman Andrew R. , Chonchol Michel 
Published: February 2018

Background and objectives
Mild hyponatremia is a common finding in older adults; however, the association of lower serum sodium with cognition in older adults is currently unknown. We determined whether lower normal serum sodium is associated with cognitive impairment and risk of cognitive decline in community-dwelling older men.

Design, setting, participants, & measurements
Five thousand four hundred thirty-five community-dwelling men aged ≥65 years who participated in Osteoporotic Fractures in Men, a cohort study with a median follow-up for cognitive function of 4.6 years, were included in this analysis. Multivariable logistic regression was used to examine the association between baseline fasting serum sodium levels and the odds of prevalent cognitive impairment (cross-sectional analysis; modified Mini-Mental Status [3MS] score <1.5 SD [<84] below or Trail Making Test Part B time >1.5 SD above the mean [>223 seconds]) and cognitive decline (prospective analysis [n=3611]; decrease in follow-up 3MS score or increase in Trails B time >1.5 SD of the mean score/time change [>9 or >67 seconds]).

Results
Participants were aged 74±6 years with a fasting mean serum sodium level of 141±3 mmol/L. Fifteen percent (n=274), 12% (n=225), and 13% (n=242) had prevalent cognitive impairment in tertiles 1, 2, and 3, respectively. After adjustment, lower serum sodium was associated with prevalent cognitive impairment (tertile 1 [126–140 mmol/L] versus tertile 2 [141–142 mmol/L], odds ratio [OR], 1.30; 95% confidence interval [95% CI], 1.06 to 1.61). Fourteen percent (n=159), 10% (n=125), and 13% (n=159) had cognitive decline in tertiles 1, 2, and 3, respectively. Lower serum sodium was also associated with cognitive decline (tertile 1 versus tertile 2, OR, 1.37; 95% CI, 1.06 to 1.77). Tertile 3 (143–153 mmol/L) was additionally associated with cognitive decline. Results were similar in sensitivity analyses according to clinical cut-offs and by quartiles.

Conclusions
In community-dwelling older men, serum sodium between 126–140, and 126–140 or 143–153 mmol/L, are independently associated with prevalent cognitive impairment and cognitive decline, respectively.
Kūkaniloko: What It Means as the Piko of O’ahu
Authors: Noyes Martha H 
Published: February 2018

Years ago an older man from Arizona well-versed in indigenous astronomies went with me to Kūkaniloko. He asked me, “there are seven directions – what are they?”
For about 12 years Iʻve been researching precontact astronomy represented at Kūkaniloko, the site known as the piko of O’ahu – the navel, the center of the island. It is also one of only two royal birthing sites in Ka Pae ‘Āina, the Hawaiian archipelago. The piko-ness of Kūkaniloko has been very much at the core of my research data. And that data showed that precontact astronomy at Kūkaniloko was about much more than sun stations, star rises and sets, calendrics, and navigation. The data showed that bigger ideas, things like the structure of space and time – wā and kā – and matters of gender relations, the importance of ao and pō, and other philosophical or metaphysical ideas were embedded in Kūkanilokoʻs astronomy.
Chromosome numbers and karyotype features of Phlomis olivieri Benth. (Lamiaceae) from Iran
Authors: Yousefi Hossein , Amirahmadi Atefe , Naderi Reza , Atri Morteza 
Published: February 2018

AbstractChromosome numbers were determined in ten accessions ofPhlomis olivieriBenth. (Lamiaceae). The seeds were collected from natural habitats in the west of Iran. Chromosome numbers of all accessions were 2n=2x=20. The chromosomes of accessions were metacentric or submetacentric, ranging in length from 2.66 to 8.604 μm. According to the average values of ten accessions, the karyotype of this species consists of 10 pairs of metacentric chromosomes. An ideogram was depicted for the species. This is the first report on the chromo-some number and karyotype analysis ofP. olivierifrom Iran.
Modulation of arsenic-induced oxidative stress and protein metabolism by diphenyleneiodonium, 24-epibrassinolide and proline in Glycine max L.
Authors: Chandrakar Vibhuti , Dubey Amit , Keshavkant Sahu 
Published: February 2018

AbstractArsenic (As)-toxicity is a major constraint for crop production. The present study was intended to examine the comparative ameliorative effects of diphenyleneiodonium (DPI), 24-epibrassinolide (EBL) and proline (Pro) on As-stress inGlycine maxL. Seeds ofGlycine maxL. were subjected to As (100 µM) singly, and together with DPI (10 µM), EBL (0.5 µM) or Pro (10 mM), for five days, and were then analyzed. Experimental results showed that As treatment caused a substantial fall in growth traits like germination percentage, radicle length and dry mass, which was accompanied by As accumulation. Additionally, As application also revealed reduced viability, total protein content and activities of antioxidative enzymes (superoxide dismutase, catalase and ascorbate peroxidase), while it increased the levels of total sugar, proline and oxidative stress markers such as electrolyte leakage, reactive oxygen species, lipid oxidized products, protein carbonyls and hydroperoxides, Amadori and Maillard reaction products, malondialdehyde-/4-hydroxy-2-nonenal-protein adducts, protease and proteasome. Isozymes of antioxidative enzymes were also observed to be altered considerably under As-stress. Impressively, DPI, EBL and Pro played their role as protective agents, hence caused enhanced growth and reduced As accumulation. These protective chemicals also improved the viability, accruals of total protein, total sugar and endogenous proline, and activities of antioxidants, while they reduced the levels of oxidative stress markers. Our findings demonstrated the involvement of DPI, EBL and Pro in As-stress tolerance inGlycine maxL. Further, Pro appears to be superior to DPI and EBL, in alleviating As-induced responses inGlycine maxL.
Galium divaricatum Pourr. ex Lam. (Rubiaceae) – a new species for the flora of Ukraine
Authors: Novák Pavel , Zukal Dominik 
Published: February 2018

Abstract
Galium divaricatum Pourr. ex Lam. is an annual plant species occurring mainly in dry grasslands. The centre of its distribution range is situated in the Mediterranean region, while in Central Europe it has been known only from a few isolated sites in Slovakia and Hungary. In 2016 we discovered this species in open dry grassland of the class Sedo-Scleranthetea on the upper edge of a basaltic andesite quarry near the village of Siltse, Irshavskyi District, Zakarpatska Region, as a new species for the Ukrainian flora. The site is situated in the transitional region between the Pannonian Basin and the Eastern Carpathians. The new locality represents the northernmost recent occurrence of this species.
Resurrection of a regionally extinct taxon in Croatia – the case of Ammophila arenaria (L.) Link (Poaceae)
Authors: Bogdanović Sandro , Šegota Vedran , Alegro Antun 
Published: February 2018

Abstract
A regionally extinct taxon, Ammophila arenaria (L.) Link subsp. arundinacea H. Lindb., has been rediscovered in the Croatian flora after 78 years. Previously it was known only from two coastal sand dune sites in Northern Dalmatia. The habitat at the locality of Crnika near Lopar on the northern Adriatic island of Rab is destroyed and A. arenaria subsp. arundinacea does not grow there anymore. At the second locality, on the sand dunes of Kraljičina plaža in the vicinity of the town of Nin, A. arenaria subsp. arundinacea was rediscovered and confirmed after 174 years. This is the only population of this taxon in Croatia, counting 48 mature individuals where the psammophylous habitat of Kraljičina plaža is under strong anthropogenic influence. This taxon is now classified as critically endangered (CR) and merits adequate active protection and conservation of its psammophylous habitat.
PEMANFAATAN PERANGKAT LUNAK BERBASIS SPASIAL DALAM PENDEFINISIAN PERAIRAN PEDALAMAN DI DALAM GARIS PENUTUP TELUK DI PESISIR BARAT SUMATERA BARAT
Authors: Muttaqin Rijal 
Published: February 2018

<p>Indonesia sebagai Negara kepulauan telah meratifikasi hukum laut internasional yaitu United Nations Convention on the Law of the Sea (UNCLOS) sejak tahun 1985. UNCLOS memberikan kewenangan kepada negara kepulauan untuk mengklaim kawasan lautnya, termasuk diantaranya perairan kepulauan dan perairan pedalaman. Dalam pasal 50 UNCLOS disebutkan bahwa negara kepulauan dapat mendefinisikan perairan pedalaman mereka dengan menarik garis penutup pada garis pantainya. Garis penutup yang dikaji dalam penelitian ini adalah garis penutup teluk. Indonesia belum mendefinisikan perairan pedalamannya, sehingga seluruh perairan yang berada di sisi dalam dari garis pangkal dianggap sebagai perairan kepulauan. Perairan pedalaman dapat dianggap setara dengan daratan, sehingga pelaksanaan hak dan kewajiban pada wilayah tersebut tentu berbeda dengan perairan kepulauan. Penelitian ini bertujuan untuk mengidentifikasi perairan pedalaman di wilayah <ins cite="mailto:BIG%20Cibinong" datetime="2018-02-05T13:38">p</ins><del cite="mailto:BIG%20Cibinong" datetime="2018-02-05T13:38">P</del>esisir <ins cite="mailto:BIG%20Cibinong" datetime="2018-02-05T13:38">b</ins><del cite="mailto:BIG%20Cibinong" datetime="2018-02-05T13:38">B</del>arat Sumatera Barat, serta mendefinisikan masing-masing perairan pedalaman secara geografis yaitu dalam koordinat lintang dan bujur. Pendefinisian geografis dimulai dari identifikasi teluk yang memenuhi syarat - syarat UNCLOS dan analisis pemilihan garis penutup alternatif yang lebih menguntungkan jika memungkinkan.</p><p class="NoSpacing1"> </p><p><strong>Kata kunci</strong>: UNCLOS, perairan pedalaman, garis penutup teluk<em><del cite="mailto:pjkgg" datetime="2018-02-08T13:26">.</del></em><em></em></p>