bluuebunny/crossref_metadata_2025 huggingface dataset:
Rocky Mountain 123s by J. Asnong
Authors: Quaiattini Andrea
Published: October 2017

Asnong, Jocey.  Rocky Mountain 123s.  Rocky Mountain Books, 2017.Though ultimately a basic counting book, Rocky Mountain 123s is a wholly whimsical and entertaining board book. Jocey Asnong, inspired by the beautiful surroundings of her home in Canmore, Alberta, takes readers on a numerical romp through the Rocky Mountains. Rocky Mountain 123s perfectly accompanies Asnong’s 2016 board book Rocky Mountain ABCs, with both books using the action and adventure of the great outdoors to teach the most foundational lessons to children.Though there is no overarching narrative, a page is a little story unto itself.  Each page focuses on one number, with the numbers counting up sequentially from one to twenty. There is a short, simple sentence describing the “story”, with a colourful illustration to match. Using both animals and people as subjects, Asnong situates them in a variety of outdoor activities and locations around the Rockies, which she identifies in a small side text.  “Fifteen footprints are made in the snow” has a girl tromping across Lake O’Hara in her snowshoes, while “Nine goats climb a hard line” shows mountain goats scrambling up Maligne Canyon. Readers will be able to easily identify and count the number items on the page - “Twelve tents light up the night” has twelve easily countable tents perched around Mount Robson. The number is also numerically written out in bold print and colour to help readers connect the illustration to the number.This is a delightful book, and is highly recommended. However, as it is a board book, it would be most appropriate for public libraries.Highly Recommended: 4 stars out of 4Reviewer: Andrea QuaiattiniAndrea Quaiattini is a Public Services Librarian at the University of Alberta’s JW Scott Health Sciences Library.  While working as a camp counsellor, she memorized Mortimer and The Paper Bag Princess by Robert Munsch as bedtime stories for the kids.  She can still do all the voices.
New Books that Promote Diversity and Social Inclusion
Authors: Desmarais Robert
Published: October 2017

Dear Readers,As you can easily imagine, our journal receives regular deliveries from publishers of children’s books who would like to see their new titles reviewed by Deakin writers. For many years now, I have been pleased to open an increasing number of courier boxes filled with children’s books that raise awareness of diversity. The boxes keep coming and so do the books featuring diverse characters, including (but not limited to) LGBTQ youth, people with disabilities, ethnic and cultural minorities, and Indigenous peoples. The number of books written and illustrated by people from culturally, ethnically, and racially diverse backgrounds is also on the rise, and this circumstance bodes well for the future of children’s literature. Indeed, publishers appear eager to let their readers know that they take diversity seriously, and many publishers, such as Groundwood Books and Penguin UK, include a diversity statement or manifesto on their websites. This is good news that should be celebrated. Our fall issue is filled with thought-provoking books that embrace diversity, including Inuit Spirit (containing line drawings by world-renowned Inuit artist, Germaine Arnaktauyok), People of the Sea (describing the role of sea-people in Inuit culture), Isaac and His Amazing Asperger Superpowers! (helping children to understand the Asperger’s/autism spectrum), and many other compelling titles. These books help children appreciate differences in ethnicity, disability, culture, gender, lifestyle, and perspectives. If you read and enjoy a book about diversity, please spread the word and let other readers know about your discovery. We can all help to advocate for diversity in children’s literature by buying diverse books from booksellers and sharing them with young readers. Please spread the word that diversity matters!Best wishes,Robert DesmaraisManaging Editor
Niqinniliurningmik by B. Memogana
Authors: Campbell Sandy
Published: October 2017

Memogana, B., translator.  Niqinniliurningmik. Inuivialuit Cultural Resource Centre, 2016. This small book, with its simple drawings and text accomplishes three things.  It helps preserve and encourage use of the Inuvialuktun language and dialects.  It situates learning materials in the day-to-day life of the children using the materials, and it preserves and passes on traditional knowledge to younger generations. Kangiryuarmiutun is one of three Inuvialuktun dialects. This volume, in Kangiryuarmiutun with English translation at the end, describes and shows the process of making dried fish.  The target audience for this book is young children. The text is brief and in large print, but you really do not need the text to understand the content. Roberta Memogana’s simple pencil crayon figures stand against stark white backgrounds, each page showing a step in the fish preparation process:  catching, cleaning, salting, drying, smoking and eating. The figure is a woman in a parka, often kneeling, using an ulu, or “woman’s knife”, to prepare the fish.   This book should be included in school and public libraries where Inuvialuktun is spoken as well as in collections that specialize in polar children’s literature.Highly Recommended: 4 stars out of 4Reviewer: Sandy CampbellSandy is a Health Sciences Librarian at the University of Alberta, who has written hundreds of book reviews across many disciplines.  Sandy thinks that sharing books with children is one of the greatest gifts anyone can give.
Isaac and His Amazing Asperger Superpowers! by M. Walsh
Authors: Borle Sean
Published: October 2017

Walsh, Melanie.  Isaac and His Amazing Asperger Superpowers! Candlewick Press, 2016.This picture book is designed to help children better understand children who are on the Asperger’s/autism spectrum. Isaac, like many children with Asperger’s Syndrome, has symptoms that include needing to fidget, sensitivity to sound, exceptional memory for certain kinds of facts, and lack of verbal filters. Instead of making these as negative attributes, Melanie Walsh has used the “superhero” concept as a vehicle for their positive presentation. Telling the story in the first person allows Isaac to directly describe for the reader what his life is like. This allows readers to empathize more easily. For example, he says:  “Because I’m a superhero, I have lots of things to think about. I try to remember to be friendly and say hello to people I know, but sometimes I forget. I’m not being rude.” The artwork is brightly coloured. The images are simple and easy to understand, so it does not distract from the story.  This would be a good book to read out loud and discuss in a class where there is a child with Asperger’s. While it may not exactly represent all children with Asperger’s, it is a good generalization and will help other children be more accepting of others who have these “superhero” behaviours.Highly Recommended:  4 stars out of 4Reviewer:  Sean BorleSean Borle is a University of Alberta undergraduate student who is an advocate for child health and safety.
Formation of Hydroxyapatite Layer on Ti–6Al–4V ELI Alloy by Fine Particle Peening
Authors: Kikuchi Shoichi , Nakamura Yuki , Nambu Koichiro , Akahori Toshikazu ,   Department of Mechanical Engineering, Graduate School of Engineering, Kobe University 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan,   Department of Mechanical Engineering, National Institute of Technology, Toyota College, Toyota, Japan,   Toyota Technological Institute, Nagoya, Japan,   Department of Materials Science and Engineering, Faculty of Science and Technology, Meijo University, Nagoya, Japan
Published: October 2017

Fine particle peening (FPP) using hydroxyapatite (HAp) shot particles can form a HAp layer on room-temperature substrates by the transfer and microstructural modification of the shot particles. In this study, FPP with HAp shot particles was applied to form a HAp surface layer and improve the fatigue properties of Ti–6Al–4V extra-low interstitial (ELI) for use in bio-implants. The surface microstructures of the FPP-treated specimens were characterized by micro-Vickers hardness testing, scanning electron microscopy, energy-dispersive X-ray spectrometry, X-ray diffraction, and X-ray photoelectron spectroscopy. FPP with HAp shot particles successfully formed a HAp layer on the surface of Ti–6Al–4V ELI in a relatively short period by shot particle transfer at room temperature; however, the thickness and elemental composition of the HAp layer were independent of the FPP treatment time. The original HAp crystal structure remained in the surface-modified layer formed on Ti–6Al–4V ELI after FPP. Furthermore, FPP increased the surface hardness and generated compressive residual stresses at the treated surface of Ti–6Al–4V ELI. Four-point bending fatigue tests were performed at stress ratios of 0.1 and 0.5 to examine the effect of FPP with HAp shot particles on the fatigue properties of Ti–6Al–4V ELI. The fatigue life of the FPP-treated specimen was longer than that of the un-peened specimen because of the formation of a work-hardened layer with compressive residual stress. However, no clear improvement in the fatigue limit of Ti–6Al–4V ELI occurred after FPP with HAp shot particles because of subsurface failures from characteristic facets.
Effect of Cooling Stimulus on Collection Efficiency of Calf Chondrocytes Cultivated on Metal Surface
Authors: Kurashina Yuta ,   Department of Mechanical Engineering, Faculty of Science and Technology, Keio University 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan, Miyata Shogo , Komotori Jun
Published: October 2017

A cell culture module capable of cooling stimulus to collect cells efficiently on a metal culture substrate was developed. We evaluated the cell collection ratio and morphology of the collected cells. Following a cooling stimulus (0°C) for 20 min, the number of collected cells was increased by 50% compared to that collected after trypsin treatment without pipetting from the metal culture substrate. Following the cooling stimulus, cells were observed by fluorescence microscopy and scanning electron microscopy; the cell filopodia were shrunken compared to non-cooling-stimulated cells. Furthermore, the combination of collagenase and cooling stimulation resulted in the collection of a comparable number of cells as that obtained using only trypsin. Thus, cell proliferation was improved compared to that following trypsin treatment. Therefore, this method can be applied for culturing cells that are susceptible to trypsin damage.
On-Machine Estimation of Workpiece Deformation for Thin-Structured Parts Machining
Authors: Teramoto Koji ,   Muroran Institute of Technology 27-1 Mizumoto, Muroran, Hokkaido 050-8585, Japan
Published: October 2017

The workholding process in small batch production is one of the least automated processes in machining. In order to ensure appropriate workholding, it is necessary to estimate actual deformation of the workpiece. Recently, near net shape technologies, such as thin-wall casting and additive manufacturing, have become common. Increased requirements for the finish machining of thin-structured parts has increased the need for the appropriateness of workholding to be evaluated. An objective of this study is to investigate an on-machine estimation method that can evaluate the actual deformation of parts with thin-structures. Thin-structured parts are usually held by means of multipoint fixturing or vise fixturing. A hybrid estimation method combining FEM analysis and local strain measurements is adopted to estimate the deformation. The effectiveness of the proposed method is evaluated with example problems. The results indicate the feasibility of the on-machine estimation of the deformation of thin-structured parts.
PERBANDINGAN PRESTASI BELAJAR BERDASARKAN GAYA BELAJAR MAHASISWA
Authors: Tarma Tarma
Published: October 2017

Tujuan dari  penelitian ini  adalah untuk  membandingkan prestasi  belajar  mahasiswa berdasarkan gaya  belajarnya. Dalam  penelitian ini,  prestasi  belajar  yang  digunakan sebagai data adalah prestasi belajar dalam mata kuliah evaluasi pembelajaran. Sementara gaya belajar diklasifikasikan ke dalam empat kelompok, yaitu  converger, diverger, assimilator, dan accommodator sesuai dengan teori yang dikemukakan oleh Kolb. Sumber data dalam penelitian ini adalah mahasiswa Program Studi Pendidikan Kesejahteraan Keluarga angkatan 2012 yang mengambil mata kuliah Evaluasi Pembelajaran sebanyak 43 orang. Hasil analisis data dengan menggunakan metode One Way Anova diketahui bahwa tidak terdapat perbedaan prestasi antara berbagai jenis gaya belajar.
HUBUNGAN KONFORMITAS PEER GROUP DENGAN PERILAKU BERPACARAN PADA REMAJA
Authors: Anindani Dwinda Gusty , Hasanah Uswatun , Cholilawati Cholilawati
Published: October 2017

AbstrakPenelitian ini bertujuan untuk menganalisis hubungan antara konformitas peer group dengan perilaku berpacaran remaja. Metode penelitian yang digunakan adalah metode survey dengan pendekatan korelasional, dengan teknik pengambilan sampel menggunakan multistage sampling yang terdiri dari simple random sampling dan purposive sampling. Sampel penelitian ini adalah 233 siswa di SMP Negeri 209 Jakarta. Hasil penelitian diketahui bahwa: korelasi antara konformitas peer group dengan perilaku berpacaran remaja sebesar 0,467; konformitas peer group berkontribusi terhadap perilaku berpacaran sebesar 21,83%; dan terdapat hubungan yang positif dan signifikan antara konformitas peer group dengan perilaku berpacaran pada remaja di SMP Negeri 209 Jakarta.Kata kunci: konformitas peer group,perilaku berpacaran, remaja.

AbstractThis study is aimed at analyzing the relation between peer group conformity and teenagers dating behavior. This study uses a survey method with correlational approach, while multistage sampling (simple random sampling and purposive sampling). The sample was 233 students in SMP Negeri 209 Jakarta. The research found that: coefficient correlation between peer group conformity with adolescent dating behaviors of 0,467; conformity peer group contributing to the dating behavior of 21.83%; and there is a positive and significant relationship between peer group conformity with dating behavior in adolescents in SMP Negeri 209 Jakarta.Keywords: peer-group conformity, dating behavior, adolescent.
Perforation and Flowback Highlights From the Gorgon Field, Offshore Australia
Authors: Wilson Adam
Published: October 2017

This article, written by Special Publications Editor Adam Wilson, contains highlights of paper SPE 182420, “Perforation and Rig Flowback Highlights for the Gorgon Field Development Wells,” by A.K. Morrison, SPE, and J.P. Beinke, SPE, Chevron Australia, prepared for the 2016 SPE Asia Pacific Oil and Gas Conference and Exhibition, Perth, Australia, 25–27 October. The paper has not been peer reviewed.

The Gorgon liquefied-natural-gas project (Fig. 1) is one of the world’s largest natural gas projects and the biggest single resource development in Australia’s history. In 2014, eight Gorgon wells were perforated successfully, intercepting between three and seven commingled zones and gross intervals of up to 500 m per well. This paper contrasts the detailed perforating and flowback plan with the results of the operation where a number of planned, and some unplanned, contingencies were faced.

Perforation Basis of Design

The main element of the Gorgon- project well design that affected perforating was that reservoir sections would be completed with a cemented 70-in. liner in 8¾-in. open hole, with the top perforation approximately 250 m below the liner top. Each well was to be completed in multiple formation zones, with the average gross perforation interval per well (top to bottom shot measured distance) expected to be more than 400 m and an average net perforation interval (sum of perforated zones) of close to 150 m.

Four perforating alternatives were evaluated with respect to their relative operational and subsurface risks:

Tubing-conveyed perforating (TCP) shoot and drop—guns deployed into the liner on a gun hanger before upper completion is run and then fired and dropped after perforation

TCP shoot and pull—a separate drillpipe-conveyed perforation trip before completion with use of a sized kill pill after perforation to mitigate losses before the upper completion is run

Coiled-tubing conveyed

Wireline conveyed

After analysis, the TCP shoot-and- drop option was eliminated because of the additional time and well-control risk of drilling the required rathole to accommodate dropped guns.

Shoot and pull was not considered a viable option because of a lack of a temperature-rated, post-perforation kill pill.

Coiled tubing was rated feasible but with inherently greater operational risks when performed from a mobile offshore drilling unit.

The process concluded that the wireline-conveyed method was the best solution despite requiring several perforating runs per well. Operational issues associated with this technique were identified, and plans were developed for these to be managed safely.

The gun length per trip was expected to be approximately 30 m, necessitating at least five wireline trips to perforate each well, with each run expected to take between one and two rig shifts.

In the event of failure (e.g., unsuccessful cable development), the selected contingency method for deployment was coiled tubing, which was considered a proven alternative.
Direct Strain Mapping of a Cement Sheath; A New Tool for Understanding and Preventing Cement Failure in Thermal Wells
Authors: Iremonger Simon S. , Cheung Benjamin , Carey Jason
Published: October 2017

The design and application of a new cement integrity validation test apparatus for improving thermal cement integrity will be presented. This novel approach allows direct strain mapping of to-scale cement sheath as it deforms under different wellbore stress scenarios. Not only does this novel technique provide insight into elastic cement deformation but also helps elucidate how cracks form and propagate as the cement sheath deforms. Strain mapping is achieved through Digital Image Correlation (DIC) utilizing dual high speed and resolution camera systems. Reliably capturing crack initiation in the frame of view of the stereo camera system proved to be a significant challenge. After multiple design iterations, the best results were achieved with creating a predefined defect site in the cement sheath. Detailed crack initiation and propagation strain maps were created for thermal cements with and without fiber additives. This testing demonstrated how fibers are able to blunt crack propagation and dissipate energy through a fiber pull out mechanism leading to a more ductile failure. Early results are promising and are consistent with previous tests showing an increase in ultimate failure strength in tensile samples with fiber additives.
Slimhole Steam Injector Wells with Insulated Tubing
Authors: Sachdeva Parveen , Damour Jean-Aurélien , Suryanarayana P. V. , Johannson Darren
Published: October 2017

In this work, a slimhole steam injector well using new generation insulated tubing as the production casing string is proposed. Its mechanical integrity is evaluated using High Temperature Post Yield (HTPY) design approach. The thermal impact of this application and the implications of cementing the insulated tubing on its integrity as a casing are examined. It is shown that using insulated tubing as a casing is feasible and viable.

A well consisting of insulated tubing (3.5″ × 5″) as the production casing and a 7″ surface casing is considered. The insulated tubing is cemented to surface. Steam is injected through the insulated tubing to minimize heat loss to formation during steam injection and avoid aquifer temperature increase. Different steam injection conditions are considered. Thermal analysis of the process is conducted using a multiphase flow thermal simulator capable of handling steam. Loads on both the surface casing and the insulated tubing as production casing are then calculated considering the response of the inner and outer wall of the tubular. A High Temperature, Post Yield design approach as described by Suryanarayana and Krishnamurthy [SPE 178473] is used to examine integrity for appropriate loads. In particular, the low cycle fatigue life of the tubular body and connections is calculated and used as basis for design.

Thermal analysis of the steam injection process shows that the steam is delivered to the formation at the same steam quality as the injected surface steam quality. The surface casing satisfies all applicable loads using Working Stress Design (WSD) approach. The insulated tubing satisfies WSD criteria for all drilling loads. The thermally dominated loads, e.g. steam injection, satisfy the HTPY design criteria. Sensitivity to the top of cement below the surface is also analyzed to investigate the effect of buckling under high temperature. The insulated tubing undergoes elastic buckling in the un-cemented section, resulting in acceptable stresses. The number of cycles to failure calculated here are adequate for a well life of 20 years with 3 shut-ins per year.

Insulated tubing is often used as a tubing string in thermal wells for steam injection. Its use as a casing string has not been considered before. The thermal response when insulated tubing is used as casing is different. It is shown here that the insulated tubing can be used as a casing for in thermal wells with specific care exercised in its design. In particular, the thermal performance should be warranted for typically 20 years at high temperature. This means the insulation material should be selected such that it is unaffected by vacuum deterioration over time.
Understanding Sand Control for Thermal Heavy Oil and Bitumen Production Operations
Authors: Romanova U. , Michel D. , Strom R. , Stepic J.
Published: October 2017

Thermal recovery methods, in particular technology based on steam injection, are used extensively around the world for heavy oil and bitumen production. Because of the unconsolidated nature of the majority of such deposits, sand control is required. Design effectiveness of sand control depends on the reservoir type, production technology and operational practices. The industry is facing many challenges such as low oil prices, tight environmental regulations, the need to lower risks while assuring well integrity and longevity and project economics. All of that requires special technical solutions for thermal well design, including sand control.

The paper provides an overview of sand control for thermal heavy oil and bitumen production operations, factors affecting sand control design for thermal projects, sand control devices and industry trends. Laboratory observations and field data are discussed. The impact of steam on different quality heavy oil and bitumen deposits in relation to sand control is discussed in detail. Efficient sand control design for thermal production operations requires a multidisciplinary approach and is an integral part of the well longevity and project economics. Better understanding of the impact of reservoir quality, thermal formation damage and operational practices on well performance is required to assure success of a thermal project.
Verification of FEA Used in OCTG Connection Evaluations
Authors: Meijer G. , Dall’Acqua D. , Nowinka J.
Published: October 2017

Finite element analysis (FEA) is a powerful tool in OCTG connection design and qualification. Connection designers use FEA to examine impacts of design variables on connection performance. FEA is also used in connection evaluation protocols to select configurations of full-scale test specimens, and in comparative assessments to qualify connection product lines. While FEA has become a common tool, analysis of OCTG connections remains complex, and presents numerous challenges related to modelling assumptions, mathematical approximations and solution accuracy – which can vary depending on the inputs, methods and software. These challenges sometimes lead to variation in the quality of connection analysis results. Given increasing industry use for connection design and qualification, the ability to verify correctness and increase confidence in FEA performed by a third party has become an important goal – but no guidelines for such verification are available.

This paper broadly describes a benchmarking process that can be used to confirm that FEA simulations are performed to a suitable level of rigour for the connection modelling application of interest. The process steps include identifying key results of interest, establishing the governing physics and modelling parameters that could affect those results, determining the required level of benchmarking rigour, devising appropriate cross-checks that can be compared to the analysis results, and conducting those checks to increase confidence in the FEA model.

We reference thermal well casing premium connections as an example of a tubular application where FEA is relied upon heavily to support both connection design and service suitability evaluations. Specifically, the Thermal Well Casing Connection Evaluation Protocol (TWCCEP, published as ISO PAS 12835) employs finite element analysis as a means to select the connection configurations for full-scale testing. Connection analysis is used to determine the worst-case combinations of machining tolerances, pin material strength and make-up torque for galling and sealability evaluations. The modelling requirements for this extreme-service application include a number of nonlinearities, and appropriate benchmarking of the FEA is essential if confidence in the analysis results is to be achieved.

This perspective on FEA benchmarking is a suggestion for a more systematic approach to confirming connection analysis is well-conditioned, with flexibility to accommodate the specifics of the connection application and the need for rigour in FEA results. Use of this process for ISO PAS 12835 evaluations and other connection analyses purposes will increase end-user confidence and facilitate effective use of FEA by the oil-and-gas industry.
Research on Damage Mechanism and Control Measures of Casing and Tubing Corrosion in High-Temperature Fire-Flooding Wells
Authors: Long Hua , Sun Shouguo , Zhang Hongjun , Sun Houli , Wang Lei , Liu Manjun , Yu Xiaocong
Published: October 2017

With the development of Fire Flooding test, serious corrosion occurred in N80-steel based tubing and casing string and caused severe damages. Wellbore integrity is getting worse, which gives rise to the abandonment of a well section or the whole well. This problem has seriously hampered the fire flooding development. In this research, the component analysis is first applied to the injection and production gas samples of fire flooding well groups, to determine the reaction mechanism and the main corrosion factors of wellbore tubing and casing string. Then, corrosion dynamic simulation experiments are carried out by the first domestic self-developed experimental device of fire flooding corrosion simulation. Corrosion rate of various string pipes under fire flooding conditions with different gas component is simulated and measured quantitatively by using the traditional weight loss method and inductance probe method, aiming to determine the dynamic corrosion degree during the process of fire flooding, and meanwhile the evaluation on the new developed chemical corrosion inhibitor is implemented. For new wells, the anticorrosive materials for casing and tubing is selected according to test results, and the optimal design of completion casing is carried out, to ensure the injection and production wellbore integrity and anticorrosive performance in the development process. For corrosion wells, chemical corrosion inhibitor was developed, and the dynamic simulation and evaluation of corrosion resistance was carried out by means of the fire flooding simulated corrosion model experiment device. The experimental results show that the corrosion rate of N80 steel can be reduced to 0.0687mm/a when the concentration of corrosion inhibitor is 500ppm. This corrosion rate can meet the need of field development. Field tests show that the above measures can effectively prevent or delay the casing and tubing corrosion damage, and extend the service life of fire flooding wells. The fire flooding wellbore corrosion dynamic simulation experimental device has completely changed the current situation of qualitative corrosion evaluation on casing and tubing in the field and realized quantitative evaluation on corrosion damage of tubing and casing. The results of quantitative evaluation provide the basis for optimal design, anticorrosive performance and integrity of wellbore.
Studies of Aqueous Hydrogen Sulfide Corrosion in Producing SAGD Wells
Authors: Pehlke T.
Published: October 2017

In this research lab and field corrosion coupon testing was completed to determine corrosion rates on commonly used Steam Assisted Gravity Drainage (SAGD) metals. This was done to evaluate general corrosion rates, and how they vary with well depth, and operating environment. Based on this analysis and evaluating scale composition a dominating corrosion mechanism was also determined.

Lab testing utilized high temperature high pressure autoclaves to allow for field various corrosion rate and characterization measurements to be taken under controlled conditions. Measurements taken include linear polarization resistance, weight loss, and zero resistance annode to determine corrosion rates. Cyclic potentiodynamic polarization and potentiostatic polarization measurements were also obtained to further evaluate a materials effectiveness in preventing pitting corrosion. Materials tested in the lab were 1018 carbon steel, Deloro-40 and Stellite-6 hard facing finishes, TN-55TH, galvanized (GLV) J-55, and K-55.

Field coupon testing consisted of installing corrosion coupons at various elevations in the annulus of a producting SAGD well. Coupon materials tested included L-80, J-55, and a GLV-J55+J-55 creviced couple. Analysis consisted of weight loss corrosion rate determination, visual inspections, and x-ray diffraction analysis to determine scale compositions.

Field coupons showed corrosion rates decreasing from 0.0178mm/y at the bottom of the well to 0.0145mm/y at higher well elevations. This corresponded to a decrease in iron sulfide (FeS) scale content from the well bottom upwards. Based on the scales composition, operating conditions, and fluids present, it is likely that the scales were formed through the well known solid-state reaction between aqueous H2S and the metal. High average corrosion rates of 0.263mm/y were measured in the lab, compared to a low 0.0183mm/y in field studies. This difference is due to the inhibiting effects of oil in the field which inhibits corrosion rates and the longer field test duration.
Envejecimiento: desgaste de identidad y los grupos como método para su fortalecimiento
Authors: Ríos Hincapié Claudia Marcela
Published: October 2017

El objetivo del siguiente artículo, es hacer una revisión teórica acerca de las concepciones que se tienen en la sociedad actual sobre el envejecimiento y de cómo el adulto mayor afronta este ciclo vital apoyándose en los grupos comunitarios. Con la llegada de la globalización, la tecnología y demás cambios influyentes en las dinámicas sociales; el adulto mayor empieza a verse aislado y relegado a un papel minoritario e invisible socialmente, lo que lo obliga a buscar nuevas salidas para el fortalecimiento de la identidad desgastada por este rol de inutilidad otorgado socialmente. La comunidad como fuente para la interacción y el reconocimiento de la experiencia es una vía para dar paso a la restructuración de la identidad en el adulto mayor.
La evaluación psicológica infantil: metodología y aplicación de las técnicas proyectivas y psicométricas
Authors: Gómez Ramírez Rocío Del Pilar
Published: October 2017

Teniendo en cuenta el valor del proceso evaluativo y diagnóstico en la infancia, con el presente escrito se pretendió conocer las definiciones, relaciones, diferencias y ventajas en la evaluación infantil dentro de los modelos psicoanalíticos y psicométricos. Para este fin se describe la relevancia de las pruebas, teniendo en cuenta la necesidad y su uso en la infancia. Se determinó que al ser la niñez un proceso de desarrollo constante, tanto biológico, psicológico como social, los procesos de evaluación proyectivos y psicométricos deben utilizarse de acuerdo a la necesidad de evaluación, los modelos teóricos de constructo y las necesidades del infante. Para esto se realiza un recorrido por el proceso de desarrollo infantil, describiendo los principales procesos de evaluación. Se concluye la importancia de la utilización de ambos modelos para un adecuado proceso diagnóstico, teniendo en cuenta que cada una de las técnicas proporciona ventajas y desventajas de acuerdo con el modelo, por lo que los procesos evaluativos y de valoración deben ser complementarios.
Reflexiones sobre la ética del psicólogo
Authors: Ríos Madrid Myriam
Published: October 2017

El presente texto contiene una reflexión sobre la posición personal que asumen algunos estudiantes y profesionales de la psicología, posición desde la que miran a los otros como enfermos, como seres necesitados de ayuda, pero no suelen reconocer la patología que hay en ellos mismos; igualmente, les gusta recomendar a otros la famosa frase conócete a ti mismo, que tampoco gustan de aplicarse a sí mismos.
Editorial
Authors: Rodríguez Bustamante Alexander
Published: October 2017

La revista electrónica Poiésis del Programa de Psicología de la Facultad de Psicología y Ciencias Sociales de la Universidad Católica Luis Amigó llega a su número 33, y esta vez con un tema que nos convoca y del cual hacemos parte por nuestra condición humana cíclica y de vida: “el adulto mayor”.
A Novel Joint Blocking and Ringing Artifact Reduction using Advanced Beltrami Based Texture Maps
Authors: Nguyen Thai Van , Do Tuan Hong , Vo Dung Trung
Published: October 2017

This paper proposes a novel image enhancement approach using advanced texture maps together with isotropic or directional fuzzy filters. Texture maps of original images or compressed images are estimated and then are used to control the filter’s strength. The aim is to reduce blocking and ringing artifacts while preserving the sharpness of compressed images. The spread parameter of fuzzy filters plays an important role to control deblocking and deringing process. Thus, the spread parameter is optimized to obtain the highest image quality. The proposed algorithm also simultaneously combines deblocking and deringing schemes to reduce the algorithm’s complexity. Simulation results show that the proposed fuzzy filtering scheme achieves the best visual quality, SSIM, and PSNR values among existing methods.
Low Profile Frequency Reconfigurable PIFA Antenna using Defected Ground Structure
Authors: Minh Pham Trung , Duc Nguyen Trong , Vu Phan Xuan , Chuyen Nguyen Thanh , Yem Vu Van
Published: October 2017

In this paper, we design and implement a low profile frequency reconfigurable Planar Inverted-F Antenna (PIFA) for WLAN, m-WiMAX and UMTS applications. Dierent from several conventional designs, the air layer in our antenna is removed, while the radiator patches and ground plane are printed on two sides of the same substrate. This makes the antenna structure thin and lightweight. The defected ground structure (DGS) and coplanar sorting-trips are also designed for adjusting lower operating frequencies without increasing the antenna’s size. Three PIN-diodes are used in appropriate positions for accurate switches between frequency bands. Moreover, the three radiator patches’ parameters are optimally selected on all configurations using Genetic Algorithm (GA). Simulation results show that depending on the ON/OFF states of the PIN-diodes, the antenna can operate in three applicable frequency bands, i.e., 2.1 GHz, 2.4 GHz, and 3.5 GHz with the corresponding peak gains of 0.48 dBi, 3.55 dBi, and 4.33 dBi. The antenna occupies an overall size of 63.5x33.5x1.6 mm3, which can be easily fabricated and integrated into small wireless devices. Simulated and measured results are also compared to validate the correctness the antenna design.
Motivasi Berprestasi Siswa Ditinjau dari Fasilitasi Sosial dan Ketakutan akan Kegagalan
Authors: Fakhria Milcha , Setiowati Erni Agustina
Published: October 2017

Abstract: The aim of this research is to determine the relationship between social facilitation and fear of failure with achievement motivation. The hypothesis proposed by researchers is that there is a correlation between social facilitation and fear of failure with achievement motivation. The samples included in this research are 200 high school students of tenth graders from SMAN 2 Semarang, MAN 1 Semarang, and SMA Gita Bahari. The measuring tool used consists of three scales, namely the scale of achievement motivation, social facilitation scale, fear of failure scale. Data analyzed used multiple regression and partial correlation. The results showed that there was a significant correlation between social facilitation and fear of failure with achievement motivation, R = 0,528 and F = 38,028 at p = 0,000 (p<0,01).  The results of partial correlation test indicate that social facilitation was positively linked to achievement motivation while the fear of failure was negatively linked to achievement motivation.

Abstrak: Tujuan dari penelitian ini adalah untuk mengetahui hubungan antara fasilitasi sosial dan ketakutan kegagalan dengan motivasi berprestasi. Hipotesis yang diajukan oleh peneliti adalah adanya korelasi antara fasilitasi sosial dan ketakutan akan kegagalan berprestasi. Sampel yang termasuk dalam penelitian ini adalah 200 siswa SMA kelas sepuluh dari SMAN 2 Semarang, MAN 1 Semarang, dan SMA Gita Bahari. Alat ukur yang digunakan terdiri dari tiga skala, yaitu skala motivasi berprestasi, skala fasilitasi sosial, skala ketakutan. Data yang dianalisis menggunakan regresi berganda dan korelasi parsial. Hasil penelitian menunjukkan bahwa ada hubungan yang signifikan antara fasilitasi sosial dan ketakutan kegagalan dengan motivasi berprestasi, R = 0,528 dan F = 38,028 pada p = 0,000 (p <0,01). Hasil uji korelasi parsial menunjukkan bahwa fasilitasi sosial dikaitkan secara positif dengan motivasi berprestasi sedangkan ketakutan akan kegagalan dikaitkan secara negatif dengan motivasi berprestasi.

 
Physical Exercise As Stabilizer For Alzheimer'S Disease Cognitive Decline: Current Status
Authors: Machado Sergio , Filho Alberto Souza de Sá , Wilbert Matheus , Barbieri Gabriela , Almeida Victor , Gurgel Alexandre , Rosa Charles V. , Lins Victor , Paixão Alexandre , Santana Kamila , Ramos Gabriel , Neto Geraldo Maranhão , Paes Flávia , Rocha Nuno , Murillo-Rodriguez Eric
Published: October 2017

Introduction:

Mental health decline is one of the main responsible factors for augments in health care costs, and diagnosis of Alzheimer’s disease (AD). Some studies stated physical exercise is useful for reduction in cognitive decline and AD. Moreover, a recent review argued that evidence are scarce due to few studies published and lack of configuration information of exercise protocol, such as intensity and duration of exercise, number of sessions and other relevant data, to allow appropriate assessment.

Materials and Methods:

Here, we discussed the possible confounders or factors responsible for these differences and possible neurophysiological mechanisms.

Results:

Most studies revealed a possible positive association between physical exercise and cognitive assessments. There are inconsistencies in studies design responsible for varying use of cognitive assessments and different assessments of fitness. However, these studies do not fail to provide evidence about the benefits of exercise, but fail to make it possible because of the lack of dose-response information in AD patients. Physical exercise of moderate intensity should be considered as standard recommendation to reduce cognitive decline, probably due to the improvement in neurodegenerative mechanisms, and the increase in neuroplastic and neuroprotective neurotrophic factors.

Conclusion:

Therefore, it is suggested that physical exercise is an important neuroprotective modulator, bringing significant control of the disease and amplifying brain functions.
Qualitative Exploration of the Potential for Adverse Events When Using an Online Peer Support Network for Mental Health: Cross-Sectional Survey
Authors: Easton Katherine , Diggle Jacob , Ruethi-Davis Mabel , Holmes Megan , Byron-Parker Darian , Nuttall Jessica , Blackmore Chris
Published: October 2017

Background

Online peer support networks are a growing area of mental health support for offering social connection, identity, and support. However, it has been reported that not all individuals have a positive experience on such networks. The potential for adverse events within a moderated online peer support network is a new area of research exploration.

Objective

The objective of the study was to determine if use of an online moderated peer networks leads to adverse events for users.

Methods

Four biannual online surveys (October 2014 to March 2016) were conducted by a large national UK mental health charity, with users of their online peer support network exploring personal safety, moderation, experiences on the site, and how the site could be improved. Data were analyzed using thematic analysis by 2 independent researchers using a priori themes: negative experiences of moderation, social exclusion, contagion, negative interactions with other users, online relationships, co-rumination and collusion, and other.

Results

In total, 2353 survey responses were logged with 197 (8.37%) documenting an adverse event of negative experience. A dominant theme of negative experiences of moderation emerged (73/197, 37.1%) with evidence of social exclusion (50/197, 25.4%). Reading user posts was shown to be a cause of worry and distress for a few users, and analysis highlighted several instances of depressogenic and emotional contagion as well as some limited evidence of behavioral contagion (46/197, 23.4%). Very limited evidence of co-rumination (1/197, 0.5%) and no evidence of collusion were identified.

Conclusions

Evidence of adverse events was identified at low levels in the sample of respondents, although we have no comparison data to indicate if levels are low compared with comparable platforms. Not all users of online peer support networks find them wholly beneficial. Research must explore what works for whom. The next stage of service development should consider which users may be likely to receive no benefit, or even deteriorate, as a result of using the service.
Effect of Recruitment Methods on Response Rate in a Web-Based Study for Primary Care Physicians: Factorial Randomized Controlled Trial (Preprint)
Authors: So Ryuhei , Shinohara Kiyomi , Aoki Takuya , Tsujimoto Yasushi , Suganuma Aya M , Furukawa Toshi A
Published: October 2017

BACKGROUND

Low participation rates are one of the most serious disadvantages of Web-based studies. It is necessary to develop effective strategies to improve participation rates to obtain sufficient data.

OBJECTIVE

The objective of this trial was to investigate the effect of emphasizing the incentive in the subject line of the invitation email and the day of the week of sending the invitation email on the participation rate in a Web-based trial.

METHODS

We conducted a 2×2 factorial design randomized controlled trial. We contacted 2000 primary care physicians from members of the Japan Primary Care Association in January 2017 and randomly allocated them to 1 of 4 combinations of 2 subject lines (presence or absence of an emphasis on a lottery for an Amazon gift card worth 3000 yen or approximately US $30) and 2 delivery days (sending the invitation email on Tuesday or Friday). The primary outcome was the response rate defined as the number of participants answering the first page of the questionnaire divided by the number of invitation emails delivered. All outcomes were collected between January 17, 2017, and February 8, 2017.

RESULTS

We analyzed data from 1943 out of 2000 participants after excluding those whose email addresses were invalid. The overall response rate was 6.3% (123/1943). There was no significant difference in the response rates between the 2 groups regarding incentive in the subject line: the risk ratio was 1.12 (95% CI 0.80 to 1.58) and the risk difference was 0.7% (95% CI –1.5% to 2.9%). Similarly, there was no significant difference in the response rates between the 2 groups regarding sending the email on Tuesday or Friday: the risk ratio was 0.98 (95% CI 0.70 to 1.38) and the risk difference was –0.1% (95% CI –2.3% to 2.1%).

CONCLUSIONS

Neither emphasizing the incentive in the subject line of the invitation email nor varying the day of the week the invitation email was sent led to a meaningful increase in response rates in a Web-based trial with primary care physicians.

CLINICALTRIAL

University Hospital Medical Information Network Clinical Trials Registry UMIN000025317; https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000029121 (Archived by WebCite at http://www.webcitation. org/6wOo1jl9t)
Transient Transformation of Artemisinic Aldehyde ∆ 11 (13) Double Bond Reductase (dbr2) Gene into Artemisia annua L.
Authors: Elfahmi Elfahmi , Cahyani Fany Mutia , Lubis Andre Ditya Maulana , Kristanti Tati , Suhandono Sony
Published: October 2017

Global demand of antimalarial drug artemisinin has a gap with production capacity from existing sources since the low content of this compound from Artemia annua L. Genetic engineering-based strategy for A. annua plant on key enzymes in artemisinin biosynthetic pathway is needed. Artemisinic aldehyde ∆ 11 (13)  double bond reductase (dbr2) is one of the key enzyme on artemisinin biosynthesis which was studied in this research. Agrobacterium tumefaciens-mediated transformation of A. annua using dbr2 was carried out. Synthetic dbr2 was ligated into pCAMBIA1303 and transformed into Escherichia coli DH5α. pCAMBIA1303-dbr2 plasmid was transformed to A. tumefaciens AGL1. Leaves of  A. annua were infected by positive transformant of recombinant A. tumefaciens (OD600 ≈ 1) supplemented with acetosyringone 50 ppm, and Silwet S-408 0.02%. Samples were incubated in desiccators connected with vacuum pump, this method is called infiltration vacuum. Leaves were covered in dark for 45 min, and co-cultivated on MS co-cultivation media for 3 days. All leaves were washed in 300 ppm cefotaxime and divided into 2 parts; 3 leaves for GUS histochemical assay and 300 mg of leaves for HPLC analysis. Transient transformation was done in triplicate. In GUS histochemical assay, pCAMBIA1303 and pCAMBIA-dbr2 showed positive blue spot where coefficient of variance was less than 5%. PCR analysis for genomic DNA of transformed  A. annua showed a positive result of inserted dbr2 recombinant indicated by migration profile and direct sequencing analysis. It could be concluded that pCAMBIA-dbr2 construct and transformation into  A. annua have been successfully performed.
Fragmentación social en Irapuato, Guanajuato
Authors: Cordero Domínguez José de Jesús
Published: October 2017

Irapuato, es el caso de estudio. Un ejemplo de ciudad media en México y por extensión de Latinoamérica. En México, durante la última década del siglo xx se ha producido un nuevo escenario urbano: la centralidad, la dispersión y la fragmentación de la ciudad como manifestaciones de un nuevo modelo urbano. Estas transformaciones urbanas producen fragmentación social en la ciudad de Irapuato, Guanajuato, la cual se identifica en el Centro Histórico, en la ciudad compacta, y Villas de Irapuato, en la ciudad dispersa. Existe, además, un tercer elemento de dispersión no sólo físico material, sino también socioeconómico: la Plaza Cibeles, enclave comercial que ha sido determinante en la fragmentación social de la ciudad.