bluuebunny/crossref_metadata_2025 huggingface dataset:
Planejamento estrutural, desenvolvimento e análise de propriedades farmacocinéticas in silico de análogos do ácido salicílico para fins cosméticos
Authors: Dos Santos Rômulo Barros , Sales do Vale Wendy Fernanda , Sena da Costa Charllyton Luís
Published: August 2017

Formulações cosméticas contendo hidroxi-ácidos (HAs) têm sido utilizadas na prática clínica por décadas para tratar uma variedade de condições de pele. O ácido salicílico, representante mais proeminente utilizado nesta classe, tem sido usado como esfoliante ou agente queratolítico, e no tratamento de linhas finas e rugas, na pigmentação da pele, caspa, dermatite seborreica, acne e para melhorar a aparência estética geral da pele. Diante disto, a presente pesquisa objetivou desenvolver análogos in silico de ácido salicílico para fins cosméticos, através da caracterização quanto às suas propriedades físico-químicas, farmacocinéticas e farmacodinâmicas dos fármacos desenvolvidos. Os compostos desenvolvidos, assim como as moléculas referências, foram analisados nos softwares ACD/ChemSketch, MarvinSketch versão 5.9.0, PreADMET versão 2.0 e SpartanStudent for Universities. Dentre as substâncias utilizadas para incrementação molecular tiveram maior relevância o ácido retinóico e seus derivados retinol e retinal, além da utilização da ureia, serina, ácido láctico, ácido palmítico, ácido recinoléico e a norbixina. O planejamento molecular possibilitou o desenvolvimento de 35 moléculas denominadas RWC. Desta forma, foi possível verificar através das análises realizadas que a grande maioria das moléculas criadas teve similaridade às moléculas do grupo dos retinóides o que implica dizer que estas apresentaram excelentes resultados tendo em vista o objetivo do referido estudo.
Soluble CD40 Iigand and Oxidative Response Are Reciprocally Stimulated during Shiga Toxin-Associated Hemolytic Uremic Syndrome
Authors: Abrey Recalde Maria J , Alvarez Romina S. , Alberto Fabiana , Mejias Maria p , Ramos Maria V. , Fernandez Brando Romina J. , Bruballa Andrea C. , Exeni Ramon A. , Alconcher Laura , Ibarra Cristina A. , Amaral María M. , Palermo Marina S.
Published: August 2017

Shiga toxin (Stx) produced by Escherichia coli is the main pathogenic factor of diarrhea-associated hemolytic uremic syndrome (HUS), which is characterized by obstruction of renal microvasculature by platelet-fibrin thrombi. It is well known that the oxidative imbalance generated by Stx induces platelet activation, contributing to thrombus formation. Moreover, activated platelets release soluble CD40 ligand (sCD40L) which in turn contributes to oxidative imbalance, triggering the release of reactive oxidative species (ROS) on various cellular types. The aim of this work was to determine if the interaction between the oxidative response and platelet-derived sCD40L participates in the pathogenic mechanism during HUS. Activated human glomerular endothelial cells (HGEC) by Stx2 induced platelets to adhere to them. Although platelet adhesion did not contribute to endothelial damage, high levels of sCD40L were released to the medium. The release of sCD40L by activated platelets was inhibited by antioxidant treatment. Furthermore, we found increased levels of sCD40L in plasma from HUS patients, which were also able to trigger the respiratory burst in monocytes, in a sCD40L-dependent manner. Thus, we concluded that platelet-derived sCD40L and the oxidative response are reciprocally stimulated during Stx2-associated HUS. This process may contribute to the evolution of glomerular occlusion and the microangiopathic lesions.
A Software Reliability Model with a Weibull Fault Detection Rate Function Subject to Operating Environments
Authors: Song Kwang Yoon , Chang In Hong , Pham Hoang
Published: August 2017

The main focus when developing software is to improve the reliability and stability of a software system. When software systems are introduced, these systems are used in field environments that are the same as or close to those used in the development-testing environment; however, they may also be used in many different locations that may differ from the environment in which they were developed and tested. In this paper, we propose a new software reliability model that takes into account the uncertainty of operating environments. The explicit mean value function solution for the proposed model is presented. Examples are presented to illustrate the goodness-of-fit of the proposed model and several existing non-homogeneous Poisson process (NHPP) models and confidence intervals of all models based on two sets of failure data collected from software applications. The results show that the proposed model fits the data more closely than other existing NHPP models to a significant extent.
Analisis Aplikasi Konsep Gaya dalam Fisika yang Berkaitan dengan Bidang Biologi
Authors: Toto Toto , Yulisma Lia
Published: August 2017

Abstract

In general, students of Biology faculty study program of Universitas Galuh Ciamis viewed physics as a difficult subject (based on interview result of writer with some students). This statement is reinforced by the acquisition of less satisfactory physics courses. They are less interested in the subject of physics with a variety of reasons including counting material that requires them to memorize many formulas and theories. In the course of physics in the biology program should be equipped application of concepts and principles of physics in the field of biology. It is very important to facilitate students in mastering and enjoying physics courses. In this study, documentation study of biology books in the subjects of General Biology in 1st semester. Based on the analysis there are application of the concept of style in the subject material of General Biology namely: capillarity style on xylem and phloem; Force on muscle tissue; And food peristaltic style. The results of this study are useful as a basis for the preparation of physics-oriented teaching materials of biological science, so that biology students are expected to be interested in physics. As a recommendation that analysis of the application of concepts and principles of physics in biology must be done in a continuous manner.

Keywords: Style concept application.

Abstrak

Pada umumnya  mahasiswa prodi pendidikan biologi FKIP Universitas Galuh Ciamis  memandang fisika sebagai mata kuliah yang sulit (berdasarkan hasil wawancara penulis dengan beberapa mahasiswa). Pernyataan ini diperkuat  dengan perolehan nilai mata kuliah fisika yang kurang memuaskan. Mereka kurang tertarik pada mata kuliah fisika dengan berbagai alasan diantaranya banyak materi hitungan yang mengharuskan mereka menghapal banyak rumus dan teori. Dalam perkuliahan fisika pada prodi biologi seharusnya dilengkapi aplikasi konsep dan prinsip-prinsip fisika dalam bidang biologi. Hal tersebut sangat penting untuk mempermudah mahasiswa dalam menguasai dan menyukai mata kuliah fisika. Dalam penelitian ini dilakukan studi dokumentasi terhadap buku biologi pada mata kuliah Biologi Umum pada semester 1. Berdasarkan analisis terdapat aplikasi konsep gaya dalam materi mata kuliah Biologi Umum yaitu : gaya kapilaritas pada xilem dan floem; gaya pada jaringan otot; dan gaya peristaltik makanan. Hasil studi ini bermanfaat sebagai dasar pijakan dalam penyusunan bahan ajar fisika yang berorientasi ilmu hayati, sehingga mahasiswa biologi diharapkan tertarik terhadap fisika. Sebagai rekomendasi bahwa analisis aplikasi konsep dan prinsip fisika dalam biologi mesti dilakukan secara berkesimbungan.

Kata kunci: Aplikasi konsep gaya.
Integrated Course for Improve Student Competencies on School Physics Laboratory Management
Authors: Raihanati Raihanati , Fitri Upik Rahma , Fajrin M.
Published: August 2017

Abstract

School Physics Laboratory Management is one of the subjects in Physics Education Study Program on FMIPA UNJ which aims to build the competence of school laboratory management for physics education students. It have been developed integrated teaching materials consisting of syllabus, One Semester (RPS) Plan, hand out, Student Activity Sheet, and Student Performance Appraisal Sheet for Laboratory Administration Competence. The development model referred to is ADDIE. Has been validation with college Lecturer Physics Education Studies Program FMIPA UNJ, with the focus of validation of syllabus and One-Semester Lecture Plan (RPS). The recommendation of peers is the use of the tools developed in the lecture process. One Semester (RPS), hand out, Student Activity Sheet, and Student Performance Appraisal Sheet have been tested against the students. Student responses to lectures were collected using a questionnaire consisting of four pieces of grain. Students appreciate 84,59, meaning very good. The effectiveness of the use of lecture tools in building student competence is very high, which obtained an average score of 91.65 very good category. The results of the experiments show that the lecture tools developed are suitable for use as teaching materials.

Keywords: integrated lecturing tools, student competence, laboratory management.

Abstrak

Manajemen Laboratorium Fisika Sekolah merupakan salah satu mata kuliah pada Program Studi Pendidikan Fisika FMIPA UNJ yang bertujuan membangun kompetensi pengelolaan laboratorium sekolah bagi mahasiswa pendidikan fisika. Telah dikembangkan bahan ajar terpadu yang terdiri dari silabus, Rencana Perkuliahan Satu Semester (RPS), hand out,Lembar kegiatan Mahasiswa, dan Lembar Penilaian Kinerja Mahasiswa untuk kompetensi Administrasi Laboratorium. Model pengembangan yang diacu adalah ADDIE. Telah dilakukan validasi sejawat dengan Dosen Program Studi Pendidikan Fisika FMIPA UNJ, dengan focus validasi silabus dan Rencana Perkuliahan Satu Semester (RPS). Rekomendaso teman sejawat adalah penggunaan perangkat yang dikembangkan dalam proses perkuliahan. Rencana Perkuliahan Satu Semester (RPS), hand out,Lembar kegiatan Mahasiswa, dan Lembar Penilaian Kinerja Mahasiswa telah diujicoba terhadap mahasiswa. Respon mahasiswa terhadap perangkat perkuliahan dikumpulkan menggunakan angket yang terdiri dari empatbelah butir. Mahasiswa memberikan apresiasi 84,59, artinya  sangat baik. Efektivitas penggunaan perangkat perkuliahan  dalam membangun kompetensi mahasiswa sangat tinggi, dimana diperoleh skor rerata sebesar 91,65 kategori sangat baik. Hasil ujicoba menunjukan bahwa perangkat perkuliahan yang dikembangkan layak digunakan sebagai bahan ajar.

Kata-kata Kunci: perangkat perkuliahan terpadu, kompetensi mahasiswa, pengelolaan laboratorium.
Implementasi Pendekatan Konstruktivisme melalui Model Pembelajaran CLIS (Children Learning In Science) dan Pengaruhnya terhadap Aktivitas Belajar dan Kemampuan Kognitif Siswa
Authors: Ratnasari Dewi , Sukarmin Sukarmin , Radiyono Y.
Published: August 2017

Abstract

The aim of this research is to implementation constructivism approach through CLIS (Children Learning In Science) learning model and its immpact toward students’ learning activities and cognitive ability. This action resesarch was analyzed by descriptive quantitative. Research subjects is students in 11th grade in the academic year 2013/2014 in the static fluid material. The data of this research from observation technique when learning process and cognitive test in the end of learning. Students’ learning activities in this research consist of visual activities, oral activities dan writing activities that described into many indicators, whereas cognitive test uses multiple choice instrument that has been properness analyzed. Based on research result and data analysis get result as follows: 1) The value of normalization in visual activities is 0,78 (high), oral activities is 0,31 (adequate), writing activities is 0,49 (adequate); 2) The increase of average achievement of students’ cognitive ability based on gain normalization is 0,32 (adequate) after learning with constructivism approach through CLIS (Children Learning In Science) model.

Keywords: learning activities, Children Learning In Science, cognitive ability.

Abstrak

Penelitian ini bertujuan untuk mengimplemantasikan pendekatan konstruktivisme melalui model pembelajaran CLIS (Children Learning In Science) dan pengaruhnya terhadap aktivitas belajar dan kemampuan kognitif siswa. Penelitian tindakan ini dianalisis menggunakan deskriptif kuantitatif dengan subjek penelitian adalah siswa kelas XI pada tahun ajaran 2013/2014 pada materi fluida statis. Data penelitian diperoleh dari hasil observasi selama proses pembelajaran dan hasil tes kognitif pada akhir pembelajaran. Aktivitas belajar siswa pada penelitian ini terdiri dari visual activities, oral activities dan writing activities yang dijabarkan menjadi beberapa indikator, sedangkan tes kognitif siswa menggunakan instrumen pilihan ganda yang telah dianalisis kelayakannya. Berdasarkan hasil penelitian dan analisis data diperoleh hasil sebagai berikut: 1) Nilai gain ternormalisasi pada visual activities sebesar 0,78 (tinggi); oral activities sebesar 0,31 (sedang); writing activities sebesar 0,49 (sedang); 2) Peningkatan rata-rata nilai ketuntasan kemampuan kognitif siswa berdasarkan nilai gain ternormalisasi sebesar 0,32 (sedang) setelah pembelajaran dengan mengimplementasi pendekatan konstruktivisme melalui model CLIS (Children Learning In Science).

Kata-kata Kunci: Aktivitas belajar, Children Learning In Science, kemampuan kognitif.
An Experimental Study of Acid Matrix Treatment Performance On Shale Core Samples
Authors: Khalil Rayan E. , Mansour Ahmed , Gamadi Talal
Published: August 2017

Experimental and numerical studies have demonstrated that there is great potential of enhancing the oil recovery from tight formations. This study investigated the effect of acid matrix treatment by applying gas flooding on the core samples before and after the treatment. The aim of the acid stimulation treatment was to improve the low-permeability of the cores.

Four core samples (0.5 in, 1.0 in, 1.5 in, and 2.0 in) from an outcrop of the Eagle Ford formation were used in this study. Permeability was measured before and after the acid treatment. The cores were CT-scanned to identify natural fractures. Different gas injection pressures were used to study the oil recovery and the time needed to penetrate through core samples. Furthermore, a solubility test was applied to identify the optimal acid concentration. The cores were re-scanned after the acid flooding treatments to detect any change. Gas flooding was applied to acidized core samples to detect changes in penetration time and recovery factor.

A solubility test demonstrated that 15% of HCL was the optimal acid concentration for the Eagle Ford formation. The study showed the porosity, permeability, recovery factor, and penetration time before and after the acidizing treatment. Permeability was enhanced from 1.04 nanodarcies to 2.10 microdarcies. Furthermore, the study showed the effect of core length on penetration rate (in/min) of gas flooding and the recovery factor at each injecting pressure. The penetration time in this study varied from 207 to 112 minutes/inch when the injecting pressure increased from 1500 to 2500 psi. After acidizing, however, the penetration rate decreased to 8.4 minutes/inch using flooding of 300 psi. The CT scan showed improvement of the micro fracture width.
Depressurizing Permian Basin San AndresResidual Oil Zones: A Feasibility Study
Authors: Jamali Ali , Ettehadtavakkol Amin , Watson Marshall , Zeinuddin Omar
Published: August 2017

A Residual Oil Zone (ROZ) is a naturally waterflooded reservoir at residual or near residual oil saturation, technically recoverable only through unconventional methods. The development of ROZs is extensively pursued in the Texas Permian Basin. Several successful ROZ CO2 Enhanced Oil Recovery (CO2-EOR) projects indicate enormous resource potential for these emerging oil plays. Another approach, called Depressurizing the Upper ROZ (DUROZ), was recently proposed and is currently under extensive investigation. This study offers a mechanistic understanding of DUROZ and investigates the factors affecting its viability and performance.

DUROZ refers to the progressive reduction of reservoir pressure through the withdrawal of large volumes of water from a horizontal well in the upper section of ROZ. When reservoir pressure falls below the saturation pressure, gas bubbles liberate from capillary-trapped oil and develop into a continuous gas phase. Consequently, the oil phase may also become mobile beyond waterflood residual oil saturation. We history-match the oil and water production from twoDUROZ producers in the upper San Andres dolomite using a tuned reservoir simulation model. To properly capture the rock and fluid interaction, the relative permeability data are tuned with the experimental core datafrom the San Andres ROZ. Extensive experimental studies have highlighted a substantial difference between relative permeabilities measured under external drive and solution gas drive. We define two sets of relative permeabilities: an original set based on the external drive experiments and the relevant correlations, and a modified set for modeling production under solution gas drive.

Our results show that even for the most optimistic relative permeabilities, the reservoir initial oil saturation should be at least 20% above the residual oil saturationin order to match the oil cuts of the reported DUROZ producers. This shows inconsistencies in use of the term "residual oil"zone by the industry in the Permian Basin. In other words, although DUROZ shows potential for production beyond waterflood residual oil saturation, the documented cases are unlikely to be true ROZ producers and are more likely completed in the Transition Zone (TZ) or near-ROZ. Finally, a discussion on the operational risks and technical considerations associated with DUROZ, including water disposal, infrastructure and facility requirements, and modeling limitations, is presented.
Incorporating the Effect of Pyrite on Total Organic Carbon Estimation in Eagle Ford Shale
Authors: Jiang Shuxian , Mokhtari Mehdi , Borrok David M
Published: August 2017

Ignoring the presence of pyrite can lead to errors in the estimation of Total Organic Carbon (TOC) since pyrite has significantly higher density and conductivity compared to other minerals in shale formations. This study aims to improve the accuracy of estimating TOC from well log data by accounting for the pyrite effect in Eagle Ford shale. To this end, more than 50 feet of preserved cores samples from the Eagle Ford were analyzed using laboratory pyrolysis, X-ray fluorescence (XRF), X-Ray Diffraction (XRD), and spectral core gamma system.

Since there is significant vertical heterogeneity in the Eagle Ford shale, parameters such as TOC, pyrite content, Gamma ray intensity, content of Fe and S, and concentrations of U, Th, and K were analyzed on a fine scale in the Upper and Lower Eagle Ford respectively. Analysis of laboratory TOC data were applied to calibrate TOC data using geophysical well logs methodologies. Pyrite data from XRD analysis were used to find the relationship between pyrite and organic matter and to determine the effect of pyrite on well logs. Well-log-based TOC calculation methods were improved by considering pyrite as an adjustable parameter in equations. Schmoker's (1983) four-component system rock model and Alfred and Vernik's (2013) two-pore system model are two representatives of density-log-based TOC calculation methods. Based on these two models, a new petrophysical model considering pyrite and organic porosity was developed.

In this research, empirical correlation between TOC and pyrite was explored. Changes of Fe and S concentrations with depth and Gamma ray intensity was determined. The trends of Fe sand S contents matched Gamma ray intensity very well in the depth range from 13790 ft to 13825 ft. Empirical relationships were found between TOC and Gamma ray intensity, TOC and Uranium, respectively. Furthermore, a new petrophysical model considering pyrite and organic porosity was validated with TOC and density data from shale formations. The proposed model improves the estimation of TOC calculation in Eagle Ford formation by the incorporation of pyrite effect.
A Two-Phase Flow Model for Fractured Horizontal Well with Complex Fracture Networks: Transient Analysis in Flowback Period
Authors: Chen Zhiming , Yu Wei , Liao Xinwei , Zhao Xiaoliang , Chen Youguang , Sepehrnoori Kamy
Published: August 2017

Model developments for transient analysis of fractured horizontal wells have gained tremendous attention in tight reservoirs, especially, during the flowback period. However, the existing models so far have rarely considered two-phase flow and complex fracture networks. To improve this situation, in this work, we present a new semianalytical two-phase flow model. Water and oil simultaneously flow in the matrix and fracture networks. By iteratively correcting the relative permeability to water and gas phases, we incorporate the two-phase flow into fracture model. Complex fracture networks with arbitrary geometries are described and the fluid flow interplays at fracture intersections are eliminated through mass balance equation. The model solution is obtained by using Laplace transform inversion, and it is verified by performing a case study with a numerical simulator. Our results show that there exist two distinct flow regimes: fluid feed and pseudo-boundary dominated flow (PBDF), which is generated by the permeability contrast between fracture networks and matrix. We also investigate the impacts of some key reservoir and fracture properties on the characteristics of productivity index. Results indicate that the productivity index increases with an increase in initial water saturation. Furthermore, it is found that during the PBDF, different fracture-network parameters have various constant productivity indexes, providing an efficient tool to characterize the fracture networks. Based on that, we apply the model to estimate the fracture networks of a tight-oil well in CJ formation at Tarim Bain with flowback data and micro seismic data, which provides an efficient technique to estimate the stimulation effectiveness during the flowback period.
Complex Toe-to-Heel Flooding: A Completion Strategy to Increase Oil Recovery from Sandstone Formations
Authors: Algarhy Ahmed , Soliman M. Y. , Heinze Lloyd , Gorell Sheldon , Henderson Steven , Nasr-El-Din Hisham
Published: August 2017

Because any increase in hydrocarbon recovery helps the petroleum industry respond to the ever-increasing demand for energy, increasing recovery from both conventional and unconventional reservoirs is the primary goal of developing new completion strategies. This paper introduces a new completion strategy, called Complex Toe-to- Heel Flooding (CTTHF), that increases oil recovery from sandstone formations. It then confirms the viability of CTTHF by using a commercial reservoir simulator to compare CTTHF to conventional waterflooding and Toe-to- Heel waterflooding. Finally, it presents several different methodologies for implementing CTTHF successfully, efficiently, and cheaply.

CTTHF improves reservoir management and enables better oil recovery than do other methods. It begins with the injection of a highly viscous slug near the toe of a horizontal well to form an impermeable barrier. An appropriate plug is then set to separate the perforations used to inject the barrier from the rest of the well. Then, the entire horizontal section of the well is perforated and a suitable packer is set to separate the horizontal section into a flooding zone (the perforations immediately heel-side from the plug) and production zone. The flooding zone is then used to create an injector hydraulic fracture into which water is injected to flood oil towards the production zone. As the flood material to oil ratio increases, the packer can be moved heel-ward. The oil is produced from the annulus through dual tubing completion or by any other convenient method, and the flood material can be either liquid or gas, depending on the application.

Though CTTHF is more complex than conventional strategies, it enables better recovery and can be implemented using a variety of completion techniques and technologies. Because the location of the packer can be changed, moreover, CTTHF minimizes the production of flood material. It is also compatible with dual tubing, coil tubing, and annulus production, and its design can be optimized using a variety of tubes, plugs, and packers.
Polyelectrolyte Complex Stabilized CO2 Foam Systems for Hydraulic Fracturing Application
Authors: Anandan Rudhra , Johnson Stephen , Barati Reza
Published: August 2017

Hydraulic fracturing of oil and gas wells is a water intensive process. Limited availability, cost and increasing government regulations restraining the use and disposal of fresh water have led to the need for alternative fracturing fluids. Using CO2 foam as a fracturing fluid can drastically reduce the need for water in hydraulic fracturing. We address the addition of polyelectrolyte complex nanoparticles (PECNP) to surfactant solutions to improve foam stability, durability and rheological properties at high foam qualities. Polyelectrolyte pH and polyanion/polycation ratios were varied to minimize particle size and maximize absolute zeta potential of the resulting nanoparticles. Rheological tests were conducted on foam systems of varying surfactant/PECNP ratios and different foam quality to understand the effect of shear on viscosity under simulated reservoir conditions of 40°C and 1300 psi. The same foam systems were tested for stability and durability in a view cell at reservoir conditions. Supercritical CO2 foam generated by surfactant alone resulted in short lived, low viscosity foam because of surfactant drainage from foam lamellae. However, addition of PECNP strengthens the foam film by swelling the film due to increased osmotic pressure and electrostatic forces. Electrostatic interactions reduce dynamic movement of surfactant micelles, thereby stabilizing the foam lamellae, which imparts high durability and viscosity to supercritical CO2 foams. From the rheology test results, it was concluded that increasing foam quality and the presence of PECNP resulted in improved viscosity. Also, foam systems with PECNP showed promising results compared with foam generated using surfactant alone in the view cell durability test. The addition of optimized polyelectrolyte nanoparticles to the surfactant can improve viscosity and durability of supercritical CO2 foam during hydraulic fracturing, which can lead to large reductions in water requirements.
Stacked Pay Pad Development in the Midland Basin
Authors: Alimahomed Farhan , Malpani Raj , Jose Rohann , Haddad Elia , Arteaga Edgar V. , Smith Lance , Lati Shrutesh
Published: August 2017

The Midland Basin has seen an unprecedented boom in pad drilling over the last year, largely due to the stacked pay, comprising of the Spraberry and the Wolfcamp formations. Operators are targeting up to four different reservoirs in one section, using a wine-rack pattern, which is the future of pad drilling. The workflows discussed in this paper will help us in understanding the growth of the hydraulic fractures and their production interference with the offset wells. These integrated workflows are centered on building a calibrated 3D model, to perform predictive modeling on various combinations of stacked laterals and determine the optimum spacing, both vertically and laterally.

Technology integration plays a significant role in identifying the key drivers of production. Our workflows involve building a geomodel using high tier pilot well logs and utilizing an unconventional fracture model (UFM) to simulate hydraulic fractures to understand the overall fracture footprint. The fractures are then gridded in an unstructured manner and fed to a numerical reservoir simulator to perform production history matching. This is the most crucial step in the process because this calibrated model is then usedfor predictive modeling of the various combinations of lateral spacing and stacking.

Pilot well logs show varying degrees of high stress barriers that exist across the basin, and knowing the stress regime local to a field or section is important in determining the optimum landing locations and completion designs. Typical pump schedules for the zones of interest were selected based on current industry practices. Fully 3D planar fracture simulations performed on the pilot well resulted in 18 potential landing locations spanning the Upper Spraberry to the Lower Cline, based on fracture heights and theinterference between the zones. Out of the 18 targets, fivewere selected based on production potential. UFM simulations along the lateral show different fracture geometries in different reservoirs due to varying rock properties and natural fracture orientations. The production history matching was performed using a P50 type curve generated using public data for eachreservoir in the county, and using known reservoir fluid properties.

The modeling approach discussed in this paper can be applied to any data set within the basin to determine the optimum landing location, which could vary depending on changing reservoir properties. It acts as an alternative approach to field testing varying spacing combinations, which could be both, expensive and time consuming.
Low Density Proppant in Slickwater Applications Improves Reservoir Contact and Fracture Complexity - A Permian Basin Case History
Authors: Jackson Kale , Orekha Olatunji
Published: August 2017

The use of slickwater fluid systems in hydraulic fracture design has grown tremendously in recent years relative to "conventional" linear gel or cross-linked fluid systems. The primary drivers for this change in design methodology are cost, proppant pack damage minimization, fracture complexity and environmental footprint. The efficiency of proppant placement in the fracture using slickwater systems remains a subject of ongoing research none-the-less.

The diminished capability of slickwater systems to effectively suspend and transport proppant in a fracture (and the wellbore) due to its relatively low viscosity is well known, and presents the most significant drawback of utilizing slickwater systems. This inferior transport behavior requires that fracture designs consist of low proppant concentrations (0.25 – 2.0 PPA, typically) and leads to the requirement of very large volumes of fluid for placement. Furthermore, the majority of slickwater completion designs in recent times have incorporated a high percentage of small mesh size proppant (100 Mesh and 40/70) into the pump schedules to afford placement in these thin fluid systems, which have impacted proppant pack conductivity.

This paper will present a new low density proppant that has been developed to enhance the transport capabilities of slickwater fluids leading to increased reservoir contact area while enhancing proppant pack conductivity. Proppant performance in slot flow testing in comparison with conventional proppant will be presented as well as various novel deployment methodologies in which the proppant can find optimal applications by leveraging its lightweight characteristics which can lead to longer effective half lengths and greater frac height. Finally, the authors will present a case study detailing the successful deployment of the new Ultra Lightweight Ceramic (ULWC) proppant in the 2nd Bone Spring formation of the Permian basin. Lessons learned and benefits to the overall completions design will also be discussed.

Completions engineers, reservoir engineers and all technical stakeholders who are actively developing or plan to develop acreage in unconventional resource shale plays where the use of slickwater fracture fluids systems are currently in high utilization will find this paper beneficial.
Simplifying Wellhead Facilities for Multiphase Production
Authors: Gupta A.. , Pitts J..
Published: August 2017

Liquids-rich gas plays present significant challenges to producers to keep wells flowing and maximize production. In particular, liquid loading is a frequent issue as production rates decline and flow rates are no longer sufficient to keep liquids entrained in the gas stream. Many strategies exist and have been attempted over the years for attempting to keep these wells flowing and avoid liquid loading.

Perhaps the most attractive option is wellhead compression, which will lower wellhead pressures and increase flowrates, both items necessary to eliminate liquid loading. By reducing wellhead pressures, compressors will also increase the recoverable assets of a well. Traditional compression is not able to operate with liquids present and thus requires additional infrastructure and facilities to separate, store, and transport the liquids. Multiphase production facilities are a good solution to eliminate the need for additional infrastructure at the wellhead, and instead move the multiphase flow downstream to a central facility for processing. However, the more common multiphase pump technologies suffer from low efficiencies in the high gas volume fraction (GVF) conditions typical in liquids-rich gas wells.

A new multiphase compression technology is identified with the potential to achieve the benefits of multiphase production while operating at efficiencies closer to a traditional compressor. Testing is conducted with the new technology on several different wet gas wells in the Eagle Ford. Testing shows that the compressor is successfully able to handle a multiphase stream coming directly from the well without any additional separation facilities. Additional testing further demonstrates that the compressor may even be able to unload a well that is already loaded.

Further testing and development work will be required to broaden the conditions at which the compressor can operate and to prove that it can successfully maintain a variety of different wells flowing above their critical rates and unloaded. Initial indications are very promising and suggest that the new compressor technology will be a powerful tool for producers to use in maximizing the production of liquids-rich wells.
LEVANTAMENTO DO USO DE BUSINESS INTELLIGENCE COMO FERRAMENTA DE TOMADA DE DECISÃO NOS INSTITUTOS FEDERAIS DE EDUCAÇÃO
Authors: Santos Jefferson Steidel , Tsunoda Denise Fukumi
Published: August 2017

Este artigo objetiva analisar o uso de ferramentas de Business Intelligence (BI) nos Institutos Federais de Educação de forma a identificar os benefícios e dificuldades para implementação da ferramenta. A pesquisa caracteriza-se como um estudo exploratório do tipo survey, utilizando como instrumento para coleta de dados dois questionários enviados via e-mail, sendo um destinado aos Institutos que utilizam a ferramenta e outro aos que não utilizam. A população consistiu de 38 Institutos Federais de Educação, obtendo respostas de 24 instituições, que constituíram a amostra da pesquisa, representando 63,15% de taxa de retorno, sendo que apenas 25% das instituições utilizam a ferramenta. Para tratamento dos dados optou-se por uma abordagem predominantemente quantitativa. Com base no estudo realizado, foi possível identificar como principais benefícios: praticidade na visualização dos resultados das análises por meio de gráficos e diagramas, maior assertividade nas tomadas de decisões baseadas na análise de dados, e possibilidade de gerar relatórios e gráficos adaptados às necessidades. Foram identificadas como principais dificuldades a falta de capacitação da equipe em ferramentas de BI e a existência de dados redundantes em seus bancos de dados.
ANÁLISE CRÍTICA DOS ACIDENTES DE TRABALHO NO POLO NAVAL DE RIO GRANDE
Authors: Gomes Liliane Ferreira , Real Mauro de Vasconcellos
Published: August 2017

O presente artigo é uma análise crítica dos acidentes de trabalho ocorridos no Polo Naval do Rio Grande, de 2009 a 2014. Para realizar está análise os dados destas ocorrências foram inseridos em uma tabela de dados de forma a apresentar os indicadores dos acidentes de trabalho e sua evolução através dos gráficos gerados. A tabela de dados apresenta duas planilhas referente a dois projetos desenvolvidos no período, os quais são a base deste estudo. Os indicadores avaliados foram o número de acidentes com lesão com afastamento - NCA, número de acidentes com lesão sem afastamento - NSA, hora homem de exposição ao risco – HHER, taxa de frequência dos acidentes com afastamento - TFCA e taxa de frequência dos acidentes sem afastamento - TFSA. O objetivo principal é demonstrar e verificar que nas diversas fases e períodos destes projetos de construção naval, com uma base de dados de controle apropriada, é possível realizar diversas análises comparando e agrupando estes dados. Deste modo, este estudo propõe uma forma de controle destes indicadores para as empresas, contribui na composição de material sobre um tema relevante, para conhecimento da área. Fornecendo assim subsídios para a elaboração de melhores ações corretivas e preventivas no sistema de gestão relacionado a Segurança do Trabalho na indústria naval.
INFLUÊNCIA DO TEOR DE FINOS DAS AREIAS NO COEFICIENTE DE CAPILARIDADE DAS ARGAMASSAS DE CAL EXPOSTAS AO AMBIENTE MARINHO.
Authors: Mattos Flávia Costa de , Gonçalves Margarete Regina Freitas
Published: August 2017

As areias através da distribuição granulométrica, natureza mineralógica e textura superficial exercem grande influência no desempenho das argamassas, tanto no estado fresco como no endurecido, repercutindo na durabilidade dos revestimentos. A durabilidade de uma argamassa de revestimento está vinculada à presença de umidade e de sais solúveis, que podem estar presentes nos poros dos materiais de construção ou no ambiente, como nas regiões litorâneas. Este estudo foi realizado com diferentes amostras de areias, sendo todas quartzosas, comercializadas no município do Rio Grande-RS em que após a caracterização física e mineralógica, foram produzidas três famílias de argamassas de cal hidratada tipo CH-II na proporção 1:3, em volume, mantendo-se a mesma relação água/material seco em 18%. No estado fresco foi obtido o índice de consistência (flow-table) e a densidade de massa. Para a análise no estado endurecido, foram moldados corpos de prova prismáticos 40x40x160 mm e após o processo de cura foram realizados os ensaios de densidade de massa e absorção de água por capilaridade, aos 28 e 240 dias. Os resultados indicam que a argamassa produzida com o agregado com maior percentual da fração de finos (passante na peneira #75 ?m) foi a que apresentou o menor coeficiente de capilaridade aos 28 dias de cura. O desempenho das três famílias, a partir desta data, tornou-se assemelhado indicando o refinamento na rede de poros.
ESTRATÉGIAS DE ADAPTABILIDADE NA HABITAÇÃO SOCIAL: IMPLICAÇÕES NO CICLO DE VIDA ENERGÉTICO DO EDIFÍCIO
Authors: Fischer Rafael Santos , Schmid Aloísio Leoni
Published: August 2017

Edifícios adaptáveis tem a capacidade de fazer com que os materiais utilizados em sua construção sejam utilizados de maneira mais eficiente ao longo de sua durabilidade técnica, uma vez que permitem seu rearranjo espacial, substituição fácil e rápida nos casos em que a durabilidade técnica é inferior à funcional, ou o simples uso dos mesmos em novos edifícios, caso a durabilidade técnica seja superior a funcional. Neste sentido, a adaptabilidade pode contribuir para a construção de edificações que consumam menos energia ao longo do ciclo de vida. Habitações de Interesse Social são um tipo de edificação que tem sido construído de maneira massificada e que não favorece à adaptabilidade, muito por conta das técnicas e materiais utilizados. O emprego de estratégias de adaptabilidade pode gerar projetos mais adaptáveis e, teoricamente, melhores em desempenho do ponto de vista energético, além de mais adequados às necessidades de famílias diferentes. Através da Design Science Research, o objetivo deste trabalho era verificar em qual grau a adaptabilidade influencia no desempenho energético através da comparação entre uma habitação tradicional e uma adaptável. Para isso, tanto o projeto de uma HIS adaptável quanto as modificações sofridas ao longo do ciclo de vida foram simulados com base em uma revisão bibliográfica de trabalhos da área. Constatou-se ao final que a presença de estratégias de adaptabilidade no projeto, juntamente com o uso de materiais mais leves e de menor energia embutida inicial pode significar uma redução sig
LIBERASI TEOLOGI DI IRAN PASCA-REVOLUSI: Telisik Pemikiran Abdul Karim Soroush
Authors: Purnama Fahmy Farid
Published: August 2017

Abstract: This paper will discuss the identity struggle and discourse of thought in the Islamic world, especially in the Islamic civilization and culture of Iran. That is, by trying to explain various religio-philosophical discourse presented by Soroush to restore Iranian civilization from an identity crisis, psychological deterioration, to the ontological dislocation that have obscured the authenticity of existential society. This paper will also explain why Soroush calls for new directions in theology and Islamic political discourse, particularly in Iran, which is supported by various philosophical discourse. By involving the philosophy of science (epistemology) in understanding human religiosity, Soroush philo­sophical thought also necessitates a new perspective of looking at reality, both the reality of individual, social, or global.Abstrak: Tulisan ini akan mengurai pergulatan identitas dan wacana pemikiran di dunia Islam, khususnya di kancah peradaban dan kebudayaan Iran. Yaitu de­ngan berusaha menjelaskan pelbagai wacana filsafat-keagamaan yang di­ketengah­kan Soroush untuk memulihkan peradaban Iran dari krisis identitas, keterpurukan psikologis, hingga dislokasi ontologis yang telah mengaburkan otentisitas eksistensial masyarakatnya. Tulisan ini juga akan menjelaskan mengapa Soroush menghendaki adanya arah baru dalam diskursus teologi dan politik Islam, khususnya di Iran, yang ditopang oleh pelbagai wacana filosofis. Dengan melibatkan filsafat ilmu (epistemologi) dalam memahami religiusitas manusia, pembacaan Soroush juga meniscayakan suatu perspektif baru dalam memandang realitas, baik realitas individual, sosial, maupun global.
El rol de la felicidad ajena en la filosofía práctica de Kant
Authors: Marey Macarena
Published: August 2017

En este trabajo, presento e intento resolver un problema que la

oposición de Kant al eudaimonismo podría plantear al segundo deber de virtud.

Tras analizarlo, propondré que el deber de la felicidad ajena consigue

disolver al menos uno de los obstáculos para alcanzar la felicidad en la Tierra

(la felicidad propia empírica anhelada naturalmente por los seres humanos

en cuanto seres racionales y finitos). El motivo de esto es que el deber de

promover los fines de los demás logra reubicar la felicidad hedónica en el

plano de la moralidad, algo que la noción intelectual de felicidad como componente

del bien supremo no consigue hacer y en esto consiste el rol que el

deber de la felicidad ajena cumple en el sistema ético kantiano.
¿Es Francisco Suárez un defensor de la propiedad comunitaria? Una revisión de la interpretación de Eduardo Nicol
Authors: Lecón Mauricio
Published: August 2017

En este artículo reviso la interpretación de Eduardo Nicol de la

teoría de la propiedad de Francisco Suárez. Para ello, presento la posición de

Suárez acerca de la propiedad y la propiedad privada atendiendo dos cuestiones

fundamentales. La primera es si la propiedad y la propiedad privada son

derechos; la segunda es si ambos pertenecen a la naturaleza humana o no.

Al final, argumento que la lectura de Nicol es insostenible, pues difícilmente

puede admitirse que Suárez defendió algún tipo de comunismo.
Mobile Mindfulness Intervention on an Acute Psychiatric Unit: Feasibility and Acceptability Study
Authors: Mistler Lisa A , Ben-Zeev Dror , Carpenter-Song Elizabeth , Brunette Mary F , Friedman Matthew J
Published: August 2017

Background

Aggression and violence on acute psychiatric inpatient units is extensive and leads to negative sequelae for staff and patients. With increasingly acute inpatient milieus due to shorter lengths of stay, inpatient staff is limited in training and time to be able to provide treatments. Mobile technology provides a new platform for offering treatment on such units, but it has not been tested for feasibility or usability in this particular setting.

Objective

The aim of this study was to examine the feasibility, usability, and acceptability of a brief mindfulness meditation mobile phone app intended to reduce anger and aggression in acute psychiatric inpatients with schizophrenia, schizoaffective disorder, or bipolar disorder, and a history of violence.

Methods

Participants were recruited between November 1, 2015 and June 1, 2016. A total of 13 inpatients at an acute care state hospital carried mobile phones for 1 week and were asked to try a commercially available mindfulness app called Headspace. The participants completed a usability questionnaire and engaged in a qualitative interview upon completion of the 7 days. In addition, measures of mindfulness, state and trait anger, and cognitive ability were administered before and after the intervention.

Results

Of the 13 enrolled participants, 10 used the app for the 7 days of the study and completed all measures. Two additional participants used the app for fewer than 7 days and completed all measures. All participants found the app to be engaging and easy to use. Most (10/12, 83%) felt comfortable using Headspace and 83% (10/12) would recommend it to others. All participants made some effort to try the app, with 6 participants (6/12, 50%) completing the first 10 10-minute “foundation” guided meditations.

Conclusions

This is the first known study of the use of a commercially available app as an intervention on acute psychiatric inpatient units. Acutely ill psychiatric inpatients at a state hospital found the Headspace app easy to use, were able to complete a series of meditations, and felt the app helped with anxiety, sleep, and boredom on the unit. There were no instances of an increase in psychotic symptoms reported and there were no episodes of aggression or violence noted in the record.
Discurso de ódio na tribuna da Câmara dos Deputados
Authors: Cioccari Deysi , Ezequiel Vanderlei de Castro
Published: August 2017

Este trabalho analisa a presença do discurso de ódio na cena política brasileira contemporânea. Além da abordagem conceitual do tema, o trabalho apresenta um caso concreto de discurso de ódio. A principal orientação teórico-metodológica deste trabalho é a Análise de Discurso de linha francesa, entendendo o discurso político (Charaudeau) como enunciação de uma época. As teses da Sociedade do Espetáculo (Debord) conduzem a análise crítica do corpus. Concluiu-se que o discurso de ódio na cena política contemporânea expressa íntima relação com a espetacularização da política.
Projetos políticos emancipatórios e cultura da memória no capitalismo contemporâneo
Authors: Mello Felipe Correa de
Published: August 2017

Propomos fazer alguns apontamentos acerca da relação entre imagem, memória e política na sociedade contemporânea. Como ilustração de nossa exposição, analisamos o trabalho realizado pelo Museo de la Memoria y los Derechos Humanos de Santiago, Chile. Em nosso percurso expositivo fazemos apontamentos sobre a efemeridade do tempo e a centralidade da imagem em nossa sociedade, em seguida, fazemos algumas considerações sobre o fenômeno de mercantilização da memória, bem como acerca dos potenciais políticos/educativos da memória coletiva sobre acontecimentos históricos de sistemática violação dos direitos humanos (como o Holocausto e as ditaduras latino-americanas). Na última parte, fazemos uma análise de três instalações do Museo.
A arquitetura do AI-5:
Authors: Ribeiro do Valle Maria
Published: August 2017

O presente artigo trata dos principais acontecimentos do Movimento Estudantil, em 1968, no Brasil, que reúne seus interlocutores – o governo, a imprensa, a população – em um diálogo conturbado que desemboca na decretação do AI-5. A maior parte da grande imprensa analisada, com exceção do Correio da Manhã, posiciona-se contrariamente ao ME e pede a intervenção da ditadura para contê-lo. Contudo, com o Ato 5, inclusive a grande imprensa será duramente golpeada com o início da vigência da censura.