bluuebunny/crossref_metadata_2025_split huggingface dataset:
ОБОСНОВАНИЕ ТЕХНОЛОГИИ ИНТЕНСИФИКАЦИИ ДОБЫЧИ ГАЗА ИЗ ПРОДУКТИВНЫХ ПЛАСТОВ С РАЗЛИЧНЫМИ ТИПАМИ КОЛЛЕКТОРОВ В УСЛОВИЯХ МЕСТОРОЖДЕНИЙ МОРСКОГО ШЕЛЬФА
Authors: (Vladimir I. Smurygin) Смурыгин Владимир Иванович , (Ruslan U. Rabaev) Рабаев Руслан Уралович , Sergey A. Blinov Блинов Сергей Алексеевич , (Timur B. Bakishev) Бакишев Тимур Бегайдарович , (Shamil Kh. Sultanov) Султанов Шамиль Ханифович 
Published: February 2019

Актуальность исследования заключается в том, что в настоящее время проблема поддержания уровней добычи углеводородов характеризуется, в том числе, недостаточной эффективностью существующих методов стимуляции и восстановления проницаемости продуктивного пласта вследствие малого охвата продуктивного пласта реагентами, как по толщине, так и по глубине проникновения, а также низкой эффективностью освоения. В этих условиях большое значение приобретают эффективные методы освоения скважин, а также методы интенсификации добычи, которые позволяют реанимировать и улучшить фильтрационные характеристики коллектора в призабойной зоне пласта. Особенно это актуально для месторождений Черноморского шельфа, где ряд эксплуатационных объектов представлен пластами-коллекторами терригенного и карбонатного состава, разрабатывающимися одновременно и где встречаются разрезы скважин с высокой неоднородностью геологических параметров. Цель: предложить и обосновать технологию интенсификации добычи газа для скважин, разрабатывающих газонасыщенные пласты с различным типом коллектора, а также обосновать применение предложенного состава для обработки скважины и технологию обработки скважин. Объект: скважина № 1 газоконденсатного месторождения Черноморского шельфа. Методы. С целью качественного обоснования технологии воздействия на призабойную зону пласта выполнен геолого-промысловый анализ разработки, на керновом материале проведены лабораторные исследования по подбору оптимального кислотного состава. Результаты. Обоснована технология интенсификации добычи газа для скважин, разрабатывающих газонасыщенные пласты с различным типом коллектора, в условиях месторождений морского шельфа. Оценена эффективность применения кислотного состава на основе 24 % соляной кислоты, и предложена технология проведения обработки скважины, включающая последовательную закачку кислотного раствора и отклонителя.
Cyclic Voltammetry Study of Mediated Electrochemical Oxidation Using Platinum Wire, Pt/Co(OH)2 and Pt/Co Electrodes In Various Supporting Electrolytes
Authors: Herlina Herlina , Zulfikar Muhammad Ali , Buchari Buchari 
Published: February 2019

<p>Amoxicillin is one of β-lactam antibiotic in penicillin groups which their presence in surface water and wastewater not only affects water quality but also causes long-term adverse effects on ecosystems and human health due to their resistance to natural biodegradation. The processing of organic waste electrochemically has the advantage of cheap and efficient cost, exhaust gas that does not contain toxic and hazardous materials. We have studied the process of amoxicillin electro-oxidation mediated by a cobalt (III) ion called an electrochemical oxidation process mediated (MEO) in a voltammetry study using a platinum working electrode, Pt/Co(OH)<sub>2</sub> and Pt/Co in various supporting electrolytes such as KNO<sub>3</sub>, NaClO<sub>4</sub>, Na<sub>2</sub>SO<sub>4</sub> and phosphate buffer solution with concentrations 0.10 M. The results show that the amoxicillin oxidation peaks using the above-mentioned working electrode in various electrolyte solutions are in the potential range of 500-670 mV (Ag/AgCl). The presence of cobalt ions forming complex compounds with amoxicillin causes the oxidation current decreasing that indicates the presence of degradation to amoxicillin.</p>
Magnesium sulfate decreases the dose of rocuronium for satisfactory double lumen tube placement condition in patients with myasthenia gravis
Authors: Fei Shoujun , Xia Hengfu , Chen Xiaowei , Pang Dazhi , Xu Xuebing 
Published: February 2019

Abstract
Background: Titrating a low dose of non-depolarizing neuromuscular blockers for induction of general anesthesia for patients with myasthenia gravis (MG) is a popular accepted practice. This practice may confront with unsatisfactory intubation conditions, especially for double lumen tube (DLT). This double-blind randomised study was to investigate whether magnesium sulfate could decrease the rocuronium demand and improve the DLT placement conditions for MG patients who scheduled for video-assisted thoracoscopic (VATS) thymectomy.
Methods: The patients were randomly assigned into the magnesium sulfate or normal saline group. After acquiring the adequate sedative depth, magnesium sulfate(60mg.kg-1) or normal saline(control) was given to the patients in two groups respectively. After that, the same Train of Four (TOF) value was obtained with one or more doses of 0.05 mg.kg-1 rocuronium with 3 minutes interval, then DLT was intubated. The primary and secondary observational outcomes were the cumulative rocuronium dose and the intubation condition for DLT placement respectively.
Results: 23 patients in the magnesium sulphate group and 22 patients in the control group completed the study. The amount of rocuronium used to meet the setting value of TOF were 0.10 (0.05)mg.kg-1 and 0.28(0.17) mg.kg-1 in the magnesium sulphate and control group respectively (P<0.0001). Under a similar depth of neuromuscular blockade and sedation, 23 patients in magnesium sulphate group and 16 patients in control group showed excellent intubation condition. The patients in both groups showed similar characteristics of recovery from neuromuscular blockade.
Conclusions: Our research showed that magnesium sulfate could decrease the rocuronium demand for satisfactory DLT intubation condition in MG patients.
Should EEG waveform characteristics of BIS may be informative to detect brain fragility and to predict postoperative cognitive dysfunction? A homozygous twins case report
Authors: Linassi Federico , Zanatta Paolo , Mazzarolo Anna Paola , Rosellini Edoardo , Maran Eleonora , Carron M. 
Published: February 2019

Abstract
Background: Besides inducing behavioral unresponsiveness, a key goal of anesthesia is to prevent the experience of surgery (connected consciousness) by inducing either unconsciousness or disconnection of consciousness from the environment. In pursuing this key goal, avoiding the risk of postoperative cognitive dysfunction is also necessary. In this case report we relate electroencephalography waveform characteristics during intraoperative bispectral index monitoring to long-term neurocognitive decline.
Case presentation: We describe the case of two 68-year-old homozygous twins who underwent the same general anaesthesia regimen, but had different results on neurocognitive testing 12 months postoperatively. Neurocognitive tests (Montreal Cognitive Assessment, Trail Making Test A and B, Digit Span Test, and Frontal Assessment Battery) were performed in three different times: the day before surgery, the third day postoperatively, and 12 months after surgery for follow-up.
During anaesthesia, connected consciousness and anaesthesia depth were monitored using the isolated forearm technique and bispectral index monitoring. The mean value of bispectral index was lower in one twin (S1) than in the other (S2). Moreover, the same twin who presented lower values of bispectral index had two episodes of burst suppression, whereas the other had none.
Regarding the neurocognitive evaluations, both twins did not show significative differences between the tests performed before and after surgery, but an important difference was founded at the 12-month follow-up, when only one twin (S1) showed distinctly worse test scores than previous, denoting a significant cognitive decline.
Conclusions: This case-report suggests that bispectral index electroencephalography waveform characteristics during intraoperative bispectral index monitoring may be useful in detecting brain’s susceptibility to general anaesthesia and in predicting long-term neurocognitive decline.
Upregulation of Cathepsin B-like Protease Activity During Apoptosis inGiardia duodenalis
Authors: Durán-Pérez Sergio Alonso , López-Moreno Héctor Samuel , Jiménez-Edeza Maribel , Parra-Unda Jesús Ricardo , Rangel-López Edgar , Rendón-Maldonado José Guadalupe 
Published: February 2019

Background:In eukaryotic cells, apoptosis signaling pathways are controlled mainly by aspartic acid cysteine proteases (caspases). However, certain unicellular microorganisms, such as Giardia duodenalis, lack these proteins. Thus, other cysteine proteases may play an important role in the parasite apoptosis signaling pathway.Objective:To understand the effect of cathepsin B-like inhibition on the cell viability of Giardia duodenalis and its cell death process.Methods:Bioinformatics analysis was performed to identify apoptotic proteases. Analysis showed that cathepsin B-like protease genes from G. duodenalis were the best candidate. A homology modeling technique was used to explore in silico the inhibitory effect of E-64 against cathepsin B-like proteases from G. duodenalis genome and to examine the effect of curcumin on cathepsin B-like activity regulation. In addition, the effect of E-64 on parasite survival and DNA fragmentation was tested.Results:Eight cathepsin B-like protease coding genes were identified in silico. Interestingly, while these sequences lacked the cathepsin B characteristic occluding loop, they maintained the catalytic active- site responsible for cathepsin B activity, which was evidenced by the increase in the degradation of the Z-RR-AMC substrate, suggesting the upregulation of the activity of these proteins. Additionally, inhibition of E-64 against G. duodenalis trophozoites caused a decrease in DNA fragmentation compared to control cells and had a positive effect on parasite survival after exposure to curcumin.Conclusion:Overall, these results suggested that Giardia duodenalis might have a cell death mechanism in which cathepsin B-like proteases play an important role.
Structural Activity Relationship and Importance of Benzothiazole Derivatives in Medicinal Chemistry: A Comprehensive Review
Authors: Bhat Mahesh , Belagali Shiddappa Lagamappa 
Published: February 2019

:Benzothiazole (1, 3-benzothiazole) is one of the heterocyclic compounds, which is a weak base having varied biological activities. The unique methine center present in the thiazole ring makes benzothiazole as the most important heterocyclic compound. It is a common and integral structure of many natural and synthetic bioactive molecules. Benzothiazole derivatives show a variety of activities, with less toxic effects and their derivatives showed enhanced activities, which has proven Benzothiazole scaffold as one of the important moieties in medicinal chemistry. Benzothiazole ring containing compounds possess various pharmacological activities such as anti-viral, anti-microbial, antiallergic, anti-diabetic, anti-tumor, anti-inflammatory, anthelmitic and anti-cancer, which makes benzothiazole a rapidly developing and interesting compound in the medicinal chemistry. This review briefly explains the importance, common methods of synthesis of the benzothiazole scaffold and also explains the popular benzothiazole molecules which have applications in various fields of chemistry. A review has been carried out based on various pharmacological activities containing benzothiazole moieties and rationalize the activities based on the structural variations. Literature on benzothiazole derivatives reveals that substitution on the C-2 carbon atom and C-6 are the reasons for a variety of biological activities.
Learning-Based Task Scheduling Using Big Bang Big Crunch for Cloud Computing Environment
Authors: Rawat Pradeep Singh , Dimri Priti , Gupta Punit 
Published: February 2019

:
Cloud Computing is a growing industry for secure and low cost pay per use resources. Efficient
resource allocation is the challenging issue in cloud computing environment. Many task
scheduling algorithms used to improve the performance of system. It includes ant colony, genetic
algorithm and Round Robin improve the performance but these are not cost efficient at the same
time.

:
Scheduling issue and resource cost resolve using improved meta-heuristic approaches. In this work,
a cost aware algorithm improved using Big-Bang Big-Crunch based task mapping is proposed which
reduces the execution time and cost paid for the resources at the time of execution.
The cost aware meta-heuristic technique used. Results show that the proposed algorithm provides
better cost efficiency than the existing genetic algorithm. The proposed Big-Bang Big-Crunch based
resource allocation technique evaluated against the Genetic approach. Results: Performance is measured
using an optimization criteria tasks completion time and resource operational cost in the duration
of execution. The population size and user requests measures the performance of the proposed
model.

:
The simulation shows that the proposed cost and time aware technique outperforms using performance
measurement parameters (average finish time, resource cost).
La categoría de género y la investigación en comunicación. Caso específico: la historia de la prensa nacional
Authors: Hernández Elvira 
Published: February 2019

<p>El presente artículo tiene como objetivo exponer el recorrido académico de la categoría género en los estudios de comunicación y algunas aportaciones que se han logrado, como caso específico se mostrarán las portaciones en las investigaciones realizadas en la historia del periodismo nacional.</p>
Campañas políticas y configuración del voto electoral en el 2006. Encuestas electorales y publicidad política
Authors: Sánchez Murillo Luis Fernando , Aceves González Francisco de Jesús 
Published: February 2019

<p><span style="font-size: small; color: #221e1f;"><span style="font-size: small; color: #221e1f;">Este artículo analiza las estrategias de campaña publicitarias de los candidatos en las elecciones presidenciales de 2006 en México a partir de los resultados de las encuestas electorales y de las vicisitudes experimentadas por los entrevistados en la configuración de la decisión del voto en el contexto de las campañas. Asimismo, se intenta responder una serie de preguntas derivadas de la problemática, tales como: ¿detectan las encuestas las variaciones de las preferencias electorales en el transcurso de la campaña electoral?, ¿existe relación entre las actividades de campaña y las variaciones en las preferencias electorales?, ¿impactan las campañas publicitarias en la definición del voto electoral?</span></span><p> </p></p>
PENGARUH BIAYA AUDIT, AUDIT TENURE DAN ROTASI AKUNTAN PUBLIK TERHADAP PEMILIHAN AUDITOR EKSTERNAL: STUDI EMPIRIS PADA PERUSAHAAN BUMN YANG TERDAFTAR DI BURSA EFEK INDONESIA
Authors: Hendi Hendi , Desiana Desiana 
Published: February 2019

<p><em>The purpose of an audit is to increase the confidence level of the users to the financial statements which are achieved through a statement from an opinion by the auditor. The selection of an external auditor is defined as a process to selecting an independent person who audits the company's financial statements in order to produce a quality independent auditor's report and provides an independent auditor's report that can provide information to stakeholders and company management. This study used 20 state-owned enterprises listed on the Indonesia Stock Exchange, which were selected by purposive sampling method. The selected companies report annual reports during 2013 to 2017. Based on the results of the study, the samples that met the study criteria were 98 samples. The results of this study indicate that audit fees have a significant positive effect on the selection of external auditors while the audit of tenure and rotation of public accountants has no significant effect on the selection of external auditors.</em></p><p><em><br /></em></p><p>Tujuan suatu audit adalah untuk meningkatkan tingkat keyakinan pengguna laporan keuangan yang dicapai melalui pernyataan suatu opini oleh auditor. Pemilihan auditor eksternal diartikan sebagai suatu proses memilih seseorang independen yang mengaudit laporan keuangan perusahaan agar menghasilkan laporan auditor independen yang berkualitas dan menyediakan laporan auditor independen yang dapat memberikan informasi bagi para pemangku kepentingan dan pihak manajemen perusahaan. Penelitian ini menggunakan 20 perusahaan Badan Usaha Milik Negara yang terdaftar di Bursa Efek Indonesia, yang dipilih dengan metode <em>purposive sampling</em>. Perusahaan yang dipilih melaporkan laporan tahunan selama tahun 2013 sampai dengan 2017. Berdasarkan hasil penelitian, sampel yang memenuhi kriteria penelitian adalah 98 sampel. Hasil dari penelitian ini menunjukkan bahwa biaya audit berpengaruh signifikan positif terhadap pemilihan auditor eksternal sedangkan audit <em>tenure</em> dan rotasi akuntan publik tidak berpengaruh signifikan terhadap pemilihan auditor eksternal. </p>
PERILAKU KEPATUHAN WAJIB PAJAK YANG DIPERSEPSIKAN MELALUI FAKTOR DETERRENCE, KEADILAN DAN NORMA SOSIAL
Authors: Herman Lisa Amelia , Dewi Aminar Sutra , Dewi Mike Kusuma 
Published: February 2019

<p><em>This study aims to analyze the influence of deterrence factors, procedural justice, distributive justice, retributive justice and social norms against tax compliance behavior. Data were collected using survey methods to request responses to 342 non-employee private taxpayers enrolled in KPP Pratama Padang I West Sumatera on their perceptions regarding the influence of deterrence factors, procedural justice, distributive justice, retributive justice and social norms of tax compliance behavior. This study uses multiple linear regression analysis which reveals that deterrence factor, procedural justice, distributive justice, retributive justice partially significant have a positive effect on tax compliance. While social norms found no effect on tax compliance. It is therefore recommended that tax authorities should strive to increase deterrence factors in the context of prevention, procedural justice perceptions, distributive justice and retributive justice in terms of tax sanctions and systems involved in the delivery of tax penalties.<strong></strong></em></p><p>Penelitian ini bertujuan untuk menganalisis pengaruh <em>deterrence factor</em>, keadilan prosedural, keadilan distributif, keadilan retributif dan norma sosial terhadap perilaku kepatuhan pajak.Data dikumpulkan menggunakan metode survei untuk meminta tanggapan kepada 342 Wajib Pajak Orang Pribadi Non-Karyawan yang terdaftar di KPP Pratama Padang I Sumatera Barat tentang persepsi terkait pengaruh <em>deterrence factor</em>, keadilan prosedural, keadilan distributif, keadilan retributif dan norma sosial terhadap perilaku kepatuhan pajak.Penelitian ini menggunakan analisis regresi linear berganda yangmengungkapkan bahwa <em>deterrence factor</em>, keadilan prosedural, keadilan distributif, keadilan retributif secara parsial signifikan berpengaruh positif terhadap kepatuhan pajak. Sedangkan norma sosial ditemukan tidak berpengaruh terhadap kepatuhan pajak. Oleh karena itu, disarankan agar otoritas pajak harus berjuang untuk meningkatkan <em>deterrence factor</em> dalam rangka pencegahan, persepsi keadilan prosedural, keadilan distributif dan keadilan retributif dalam hal sanksi pajak dan sistem yang terlibat dalam penyampaian sanksi pajak.</p>
FISHERIES ADAPTIVE MECHANISM ANALYSIS AND LIVELIHOOD VULNERABILITY AT JAKARTA BAY
Authors: Robin Robin 
Published: February 2019

<p><em>This study has three </em><em>purposes</em><em>: 1) to analyze the characteristic of fishermen in Jakarta Bay, 2) to develop a conceptual model and the same time counting fisheries ecological footprint related to livelihood vulnerability. The data collection was done by triangulation method (observation, interview, and documentation). The sampling technique used snowball sampling with sample size was 15-30 samples. The method of analysis used in this research was descriptive qualitative for livelihood vulnerability based on Ellis’s (2000) equation and descriptive quantitative for fisheries ecological footprint (FEF). For FEF we used the equation based on Pauly &amp; Christensen (1995). The results showed that there was a quite different characteristic between fishermen in Kamal Muara, Muara Angke and Kalibaru related to tribes, fishing gear, income, adaptation model and education level. The livelihood vulnerability showed Fishermen at Muara angke much more vulnerable than fishermen at Kamal Muara and Kalibaru. For Fisheries ecological footprint showed that Jakarta bay ecosystem is overshot meant the biocapacity much lower than ecological footprint that is 4178 km2 to 6978 km2 (Fishing Ground). A conceptual model was developed to describe the relationship between livelihood vulnerability and Fisheries Ecological Footprint. This model strongly divided the fisherman adaptation models into two routes of management.</em></p><p><em>Keyword: Fishermen, Livelihood vulnerability, ecological footprint, Reclamation, Jakarta Bay</em></p>
Cytological characterization of three closely related pines - Pinus mugo, P. uliginosa and P. × rhaetica from the Pinus mugo complex (Pinaceae)
Authors: Celiński Konrad , Chudzińska Ewa , Gmur Aneta , Piosik Łukasz , Wojnicka-Półtorak Aleksandra 
Published: February 2019

AbstractThe Pinus mugo complex comprises closely related pines in different taxonomic ranks, which commonly occur in major European mountain chains. This large and polymorphic complex has been, and still is, a considerable challenge for taxonomists due to highly variable phenotypical characteristics within particular taxa, ongoing hybridization in sympatric populations, lack of distinct morphological species-specific determinants, and the absence of distinct genetic differentiation among them. Moreover, cytogenetic data on pines from this complex are very scarce. Therefore, in this study, we used C-banding methods and flow cytometric analysis in order to provide new data on karyotypical features and DNA content of three closely-related pines from the Pinus mugo complex, i.e., Pinus mugo (Turra), Pinus uliginosa (Neumann), and Pinus × rhaetica (Brügger) and to gain more insight into the taxonomic relationships between these pines. Our results confirmed that the basic number of chromosome is the same amongst the analyzed taxa (2n = 2x = 24), and that the karyotypes have a similar morphology. The number of secondary constrictions (SCs) and C-banding patterns differed slightly between P. mugo, P. uliginosa and P. × rhaetica. The nuclear DNA content (2C/pg) among analyzed taxa is from 46.41 pg for P. mugo and P. × rhaetica to 46.48 pg for P. uliginosa. For each of these pines, certain taxa-specific cytogenetic determinants were identified. Our results indicate that they may represent two different taxa, and so their names should not be used interchangeably in scientific literature.