bluuebunny/crossref_metadata_2025 huggingface dataset:
Enhancing graduate employability and the need for university-enterprise collaboration
Authors: Tran Thi Tuyet
Published: October 2016

Over the last few decades there has been strong debate over the central mission of higher education and resistance to the employability agenda seemed strong. However, with the changing context of both higher education and the labour market, together with neoliberal pressure, enhancing graduate employability has become one of the central focuses in many universities worldwide.This article provides an overview of the relevant literature to resonate with why graduate employability has been more popularly presented in many university practices. The notion of graduate employability is examined and it is argued that without input from and collaboration with industry, universities are hardly able to achieve their vocational mission of equipping their students for the labour market.
Improved Framework for Measuring the Magnitude and Impact of Biases in Project Evaluation
Authors: Alarfaj M. K. , McVay D. A.
Published: October 2016

Several authors over several decades (Capen 1976; Brashear et al. 2001; Rose 2004) have observed that industry performance has been consistently below expectations. While this is painfully obvious during the current industry downturn, available evidence suggests that even when the industry is profitable, e.g., during the decade prior to the most recent downturn, it still performs substantially below its expectations and its potential (Nandurdikar 2014). Many attribute this underperformance to cognitive biases in project evaluation, resulting in poor project selection and valuation. McVay and Dossary (2014) presented a simplified framework to estimate the cost of underestimating uncertainty. They demonstrated that chronic overconfidence and optimism (estimated distributions of project value too narrow and shifted positively), common in industry, produce substantial disappointment (difference between estimated and realized portfolio values), also common in industry.

In this work, we generalized their framework to include full estimated distributions (e.g., normal or lognormal), instead of the truncated distributions they employed. In addition, we extended their framework to model underconfidence (estimated distributions too wide), and demonstrate that underconfidence is just as detrimental to portfolio performance as overconfidence. Decision error will be minimized and portfolio value will be maximized when there is no bias in project estimation—i.e., neither overconfidence nor underconfidence and neither optimism nor pessimism.

Using either framework, we demonstrate that operators can quantitatively measure biases—overconfidence, underconfidence, optimism and pessimism—from lookbacks (comparing actual performance to probabilistic forecasts) and generation of calibration plots. Once aware of the direction and magnitude of biases, operators have means for eliminating these biases in subsequent forecasts through a combination of internal correction of uncertainty assessments, via training or ongoing feedback, and external correction of forecasts using measurements of bias from calibration results.
Integrated Multi-Disciplinary Approaches to Predict Fluid Contacts in a Partially Appraised Field - A Case Study of Yoko Field in Niger Delta
Authors: Adedoyin Orekoya , Eteobong Etokakpan , Suleiman Ahmed , Keme Bomo , Basak Prahlad , Amogu Daniel , Longe Victor , Ejiuwa Nworie , Remmy Ugboaja , George Kakayor , Kachi Onyeagoro
Published: October 2016

The need for the estimation or evaluation Original Oil Water Contact (OOWC) prior to reservoir development is very pertinent to appropriate well placement within a reservoir. Oil and gas water contacts are determined via various sources including but not limited to Petrophysical logs, RCI data, Reservoir Simulation, Fault Seal Analysis (FSA), Quantitative Interpretation and Hydrocarbon Column Analogues. This paper focuses on an integrated approach of predicting OOWC using some of the methodologies highlighted above.

The study explores the feasibility of further oil development in the Yoko field to grow production and increase reservoir ultimate recovery. Three wells have been drilled so far in the field and none encountered OOWC. Three (3) key reservoirs account for about 69% of the total field hydrocarbon resource but with significant uncertainty in fluid contacts column (about 132ft) and wide static and recoverable volume range.

An effective and commercially viable field development plan is premised on the reduction of contact uncertainty. In order to narrow the contact uncertainty, multidisciplinary approaches has been used and they include (a) Petrophysical Logs (b) Structural Spill Point (c) Analogue oil column studies from adjacent fields (d) Fault Seal Analysis (FSA) to determine maximum column in the reservoir (e) Quantitative Interpretation (QI) and (f) Dynamic simulation.

The analogue oil column from neighbouring field was used to benchmark the possible oil column for Yoko field. FSA which relies on the sealing capacity of the faults due to the amount of mechanical mixing from fault throws was also considered. The upper and lower limits of the fluid contacts were estimated from acoustic impedance amplitude plotted against depth. The reservoir dynamic models was also history-matched (7 years of production history) to calibrate and ascertain the limits of the possible contacts for the reservoirs.

The result of the evaluation is a significantly reduced volumetric uncertainty range. In one of the reservoir, there was a progressive reduction in fluid column uncertainty from 232 ft to 90 ft. In general 55 - 85% reduction of the initial uncertainty was achieved. This reduced range enabled a commercially viable Development Plan for the field.
Cemented and Cased Hole Multistage Stimulation Technology Development and Field Wide Implementation in a North Sea Chalk Oilfield
Authors: Mehus C. , Sørheim T. , Lønning P. , Koløy T. R.
Published: October 2016

In close cooperation with a major international operating company, the service company specialising in completion Sliding Sleeve technology has developed a completion system that facilitates efficient Multistage Stimulation, and allows production management and re-fracing/stimulation of individual zones. The field wide implementation of the system has yielded a step change for the operator in terms of operational efficiencies, production management and re-fracing/intervention capabilities. This paper will present the successful technology implementation on a giant North Sea chalk oilfield.

A collaborative approach was taken, with close dialogue between the operating company and the service company, in defining the system requirements for the desired completion and stimulation methodology. Design criteria for tools were developed, validation testing and product qualification of the individual components followed by field trials were conducted. Throughout the process, a detailed focus on job preparation, execution and integration with the overall well construction and stimulation process was essential in ensuring the successful technology implementation.

This paper will discuss the technology development and implementation project resulting in two reservoir completion systems being installed in more than 27 wells in the same field. One of the systems is a cemented multi entry ball drop system, the other is a cased hole single entry ball drop system.

The process of technology implementation with focus on various case histories is presented. The installation and operational sequences and challenges that have been encountered will also be discussed. The paper will provide insight into how these systems provide unique benefits to the operator during the following phases of the wells life: Completion - Sleeve design and qualification grade significantly reduces completion steps and cost for the operator.Stimulation - stimulation efficiency provides dramatically reduced opex compared to alternative methods.Production Management - the system has built in features that allow management of unwanted production by cost efficient intervention method.Re-Stimulation - controlled re-stimulation of individual zones is possible.

This paper will present the collaborative development and field wide implementation of cemented and uncemented Multistage Stimulation Technology that has rapidly gained operator acceptance and realized significant cost savings to the operator. Both the technology and methodology used and the results achieved should be of interest to the petroleum industry.
Perforation and Rig Flowback Highlights for the Gorgon Field Development Wells
Authors: Morrison AK , Beinke JP
Published: October 2016

The Gorgon LNG Project is one of the world's largest natural gas projects and the biggest single resource development in Australia's history. Once online, gas from 18 subsea producers across the Gorgon and Jansz-Io fields will deliver a combined 15.6 MTPA of liquefied natural gas (LNG) to domestic and international export markets via three LNG trains situated on Western Australia's Barrow Island (Fig. 1).

From May through to November of 2014 the eight Gorgon foundation wells were successfully perforated, intercepting between three and seven commingled zones and gross intervals of up to 500 metres (m) per well. Perforation was conducted on wire-line with a total of 69 perforating runs made during the campaign. Directly following perforation, all eight wells were unloaded and cleaned-up by flowing back each at 80 MMscf/d for 12 – 24 hours to the Ocean America mobile offshore drilling unit (MODU).

This paper will contrast the detailed perforating and flowback plan, developed with numerous likely contingencies, against the actual results of the operation where a number of the planned and also some unplanned contingencies were enacted.

The agreed perforating basis of design called for multiple wireline runs of 4.5" diameter guns with lengths of up to 80 feet, using a specially designed high strength gas blocked cable to accommodate well conditions. A top-down perforating strategy was planned to maximise the dynamic underbalance effect and optimise the clean-out of perforation tunnels. A number of operational events on the first well prompted a switch to a bottom-up perforating methodology that in turn had a number of significant knock-on effects which will be described in full.

The flowback operation represented a once in a field-life opportunity to acquire commingled well samples and provide validation of several critical reservoir, fluid and well properties such as gas contaminant levels, water of condensation, compositional variation, vertical lift performance, sand production and the presence of formation water. As flowback operations progressed a feedback loop was incorporated, ensuring that the program was optimised as data gathered reduced uncertainty levels. Arguably the most commercially significant contribution, was the assurance that the deliverability of the eight Gorgon field producers was sufficient to meet their commitment to the Gorgon project.

Ultimately, though sharing the susccessful case study of the Gorgon Perforating and Flowback campaign, this paper emphasises the value in developing appropriate contingencies in advance of operation commencement as well as retaining program flexibility to enable changes to be made at short notice throughout the operational campaign.
The Research and Application about Aluminate Cement Slurry in Heavy Oil Thermal Well
Authors: Li Zaoyuan , Cheng Xiaowei , Zhang Mingliang , Wu Xingru , Wu Shuang , Wu Dongkui , Xiao Yunfeng
Published: October 2016

According to the requirements of rapid setting at low temperatures and long-term performance during high-temperature production on cementing for heavy oil thermal recovery wells, this study proposes the application of aluminate cement to cementing of heavy oil thermal recovery wells. Against the background of operation conditions in Liaohe Oilfield, the strength decline mechanism of the conventional silicate cement stone added silica sand were evaluated by simulating the high-low temperature circulating humid environment that the cement sheath of the heavy oil thermal recovery well faced with. Then, through laboratory experiments, the research compounded a kind of mineral clinker based on aluminate cement, prepared fluid loss agent J73S and retarder SR compatible with aluminate cement and designed a new-type thermostable aluminate cement slurry system with an applicable density range of 1.70g/cm3~1.90g/cm3 and temperature range of 30°~80°. Moreover, the hydration product and the thermostable mechanism of the modified aluminate cement slurry were analyzed through this simulation. According to the results, with the crystalline transforming at high temperatures, the strength of conventional silicate cement with silica sand substantially declines under the condition of multi-cycle high-low temperature circulation, therefore it cannot satisfy the cementing requirement of thermal recovery wells effectively. The thermostable aluminate cement slurry system features excellent engineering performance: the slurry density difference is lower than 0.02 g/cm3, the fluid loss is less than 50 ml, the thickening time is adjustable from 60 min to 300 min, the 24h strength is up to 14 MPa, and the compressive strength of cement slurry can still reach 25 MPa after two rounds of high-temperature testing. In addition, the SiO2 in the additives massively participate in the hydration reaction, endowing the modified aluminate cement slurry with favorable thermostable performance and long term stability. The application of the cement slurry system to cementing for heavy oil thermal recovery wells of Liaohe Oilfield exhibits a smooth operation process and excellent cementing quality, so it can efficiently satisfy the cementing operation requirement of heavy oil thermal recovery wells efficiently.
What Vacuum Insulated Tubings Or Vacuum Insulated Casings Bring To Thermal Wells
Authors: Damour J. , Johannson D.
Published: October 2016

Thermal wells were widely developed with the expansion of thermal enhanced oil recovery processes like SAGD, CSS or steamflood. These high temperature processes brought new challenges to the well design in term of well integrity and well performance. The use of vacuum insulated tubing (VIT) or vacuum insulated casing (VIC) has significant benefits on the well completion by two main aspects: mitigate the effect of high temperature on some part of the completion and reduce the heat loss from the injected steam.

This paper describes both design and economic considerations that lead to the selection of VIT or VIC for the completion of thermal wells. Vacuum insulated tubing design makes significant progress driven by its strength and weaknesses. VIC was developed as an alternate solution for some specific completion. The main well integrity failure modes are reviewed: casing expansion and resulting loads, cement integrity under thermal cycling, annular pressure build-up. A thermal well modeling providing casing and tubing temperature assesses the solution brought by VIT (or VIC) to avoid a well failure. On the well performance side, the heat loss will be presented for different VIT product to measure the impact on the efficiency of the process and the economic aspect.

The results shared in this paper are some of the parameters considered during thermal well design: temperature on the casing, tubing and heat loss. Knowing these parameters, the well integrity can be studied and the overall efficiency of the process estimated. Some simple cases between different completion using VIT or different VIT products are run as a comparison. More specifically, the thermal model will show how a non-thermal well can be converted to steam injection by using the proper VIT.

The wide range of thermal performance of VIT is to be understood when it comes to select the proper product for thermal well application.
Investigation Into the Use of Commercial Sands and Fines to Replicate Oil Sands for Large-Scale Sand Control Testing
Authors: Mahmoudi Mahdi , Fattahpour Vahidoddin , Nouri Alireza , Rasoul Saad , Yao Ting , Baudet Beatrice Anne , Leitch Michael , Soroush Mohammad
Published: October 2016

This paper presents the characterization of oil sands from the McMurray Formation. The main objective of this paper is to investigate the possibility of replicating the oil sands by the mixtures of commercial sands and fines for large-scale testing. There is a growing interest in large-scale evaluation testing for sand control devices that require considerable amounts of representative oil sands materials. However, natural representative oil sands samples are usually not available or are limited in quantity. Therefore, replicating the oil sands is essential for such tests.

Twenty-three oil sands samples were collected from two wells in the McMurray Formation and cleaned using the Soxhlet extraction technique. The cleaned samples were examined using the image analysis technique and Scanning Electron Microscope (SEM) imaging to study their Particle Size Distribution (PSD), shape factors, mineralogy, and texture. Similar analysis was performed on eleven series of commercial sands to compare their shape, mineralogy, and texture with those of oil sands. Particle Size Distribution of 10 commercial fines was also analyzed with a particle sizer to cover the required fine/clay part of the duplicated samples. Direct shear and 1D consolidation were performed to compare the mechanical properties of the oil sands samples and the duplicated mixtures of commercial sands and fines.

The shape factors of the oil sand and the selected commercial sand samples are in close agreement. In addition to the common average/cumulative shape factor measurements, this paper also presents the variation of shape factors within each sample for different grain sizes. The results show the same sand shape characteristics among all oil sand samples as well as the tested commercial sands. Further, XRD results indicate a similar mineralogy for the commercial sands and the oil sands samples. The SEM images show random changes in the surface texture of both oil sands and commercial sands with no observable trends. We were able to use commercial sands and fines mixture with similar grain shape properties to duplicate the PSD of the oil sand samples. Direct shear and 1D consolidation testing of the oil sands and samples made of commercial sands and fines show similar consolidation and frictional properties for both the duplicated mixture and cleaned oil sands for the same compaction level (porosities).

This paper provides a procedure for duplicating the oil sands with commercial sands and fines. It also provides detailed information on the mineralogy, texture, and the variation of the shape characteristics for oil sands from the McMurray Formation.
New Product Line Evaluation Method Saves Cost and Time on Qualifying Connections for Thermal Wells
Authors: Nowinka Jaroslaw , Dall'Acqua Daniel
Published: October 2016

Integrity of high-temperature post-yield (HTPY) wells demands use of casing connections that demonstrate suitable structural strength, sealability and galling resistance. Since 2010, Thermal Well Casing Connection Evaluation Protocol (TWCCEP, published as ISO 12835) has been used by operators and connection manufacturers to assess connection performance under representative field conditions. While technically rigorous, TWCCEP programs are costly and time-consuming, and full-scope TWCCEP evaluations on multiple size/weight/material combinations are challenging to achieve.

This paper describes a product line evaluation (PLE) approach that enables effective qualification of several members of a connection family for HTPY applications with substantial savings of effort, cost and time. Some PLE strategies were used in the past for conventional stress-based-design applications, but not for strain-based-design applications – until recently, when a new HTPY PLE approach was proposed via an industry-sponsored project. This new HTPY PLE method relies on existence of a Reference Connection that has been qualified with a prior evaluation and/or field use. Another member of the same family (Candidate Connection) is then qualified based on existing data for the Reference Connection, and comparative evaluations of the Reference and Candidate Connections.

The paper illustrates basic HTPY PLE concepts, and analytical-experimental tools and processes used for the comparative evaluations. The HTPY PLE method incorporates several assessment steps, which PLE users select according to their field application severity, risk tolerance, and desired level of confidence in the assessment results. The paper emphasizes significance of design and manufacturing variables that are relevant for the HTPY PLE method, some of which are not commonly monitored by connection users – such as circumferential non-uniformity (seal waviness). In a case study example, the paper shows how the HTPY PLE can be used to qualify a connection needed for an optimized well completion, and the resultant cost-time savings. Upon validation, the HTPY PLE method is expected to enhance effectiveness of thermal well integrity and reduce connection failure potential.
Evidence of climate change impact on stream low flow from the tropical mountain rainforest watershed in Hainan Island, China
Authors: Zhou Zhang , Ouyang Ying , Qiu Zhijun , Zhou Guangyi , Lin Mingxian , Li Yide
Published: October 2016

Stream low flow estimates are central to assessing climate change impact, water resource management, and ecosystem restoration. This study investigated the impacts of climate change upon stream low flows from a rainforest watershed in Jianfengling (JFL) Mountain, Hainan Island, China, using the low flow selection method as well as the frequency and probability analysis technique. Results showed that low flow at this watershed over a period of 18 years (1990–2007) was 0.58 m3/s and its recurrence probability and recurrence interval were, respectively, 99% and 1.01 years for low flow with a 60-day duration. Low flow rate decreased linearly both as time increment elapsed (R2 = 0.62, p < 0.01) and as air temperature rose (R2 = 0.60, p < 0.05), whereas the recurrence intervals of low flow were shorter (or occurred more frequently) as time increment elapsed. In contrast, no correlation existed between annual rainfall and low flow for this watershed, indicating that rainfall was not a factor influencing stream low flows. Since there were little to no anthropogenic activities rather than air temperature rise over time at this watershed, we attributed the decreased rate and frequent occurrence of low flow to the warming air temperature as time elapsed.
Assessment of climate change impact on crop yield and irrigation water requirement of two major cereal crops (rice and wheat) in Bhaktapur district, Nepal
Authors: Shrestha Lajana , Shrestha Narayan Kumar
Published: October 2016

Rice and wheat are major cereal crops in Nepal. Climate change impacts are widespread and farmers in developing countries like Nepal are among the most vulnerable. A study was carried out to assess the impact of climate change on yield and irrigation water requirement of these cereal crops in Bhaktapur, Nepal. Laboratory and soil-plant-air-water analysis showed silt-loam being the most dominant soil type in the study area. A yield simulation model, AquaCrop, was able to simulate the crop yield with reasonable accuracy. Future (2030–2060) crop yield simulations, on forcing the Providing Regional Climates for Impacts Studies (PRECIS) based on regional circulation model simulation indicated decreased (based on HadCM3Q0 projection) and increased (based on ECHAM5 projection) yield of monsoon rice for A1B scenario, and rather stable yield (for both projection) of winter wheat. Simulation results for management strategies indicated that the crop yield was mainly constrained by water scarcity and fertility stress emphasizing the need for proper water management and fertilizer application. Similarly, a proper deficit irrigation strategy was found to be suitable to stabilize the wheat yield in the dry season. Furthermore, an increase in fertilizer application dose was more effective in fully irrigated conditions than in rainfed conditions.
De un grabado de Rubens
Authors: Báez Macías Eduardo
Published: October 2016

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Los Goncourt en el modernismo
Authors: Carter Boyd G.
Published: October 2016

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Dos estelas en la Mixteca Baja del sur de Puebla
Authors: Von Winning Hasso
Published: October 2016

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A propósito de un conjunto de capillas abiertas
Authors: Victoria José Guadalupe
Published: October 2016

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Santa María Tiltepec: A Masterpice Of Mixtec Vernacular Architecture
Authors: Mullen Robert J.
Published: October 2016

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Unas piezas de orfebrería hispanoamericana en Navarra
Authors: Heredia Moreno María Del Carmen
Published: October 2016

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El retrato de donantes y el autorretrato en la pintura novohispana
Authors: Vargaslugo Elisa
Published: October 2016

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La exaltación del gobernante maya
Authors: Foncerrada de Molina Marta
Published: October 2016

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La pintura pseudocloisonné, una manifestación temprana en la cultura chalchihuites
Authors: Hers Marie-Areti
Published: October 2016

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El Archivo General de la Nación. Transformación de una antigua penitenciaría en centro cultural
Authors: Noelle Louise
Published: October 2016

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La "segunda visita" a la Nueva Vizcaya de Pedro Tamarón: consideraciones generales e inventarios
Authors: Bargellini Clara
Published: October 2016

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La misa explicada de San Felipe Tlalmimilolpan, Mex. Una pintura didáctica del siglo XVIII
Authors: Franco Carrasco Jesús
Published: October 2016

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La portada de la iglesia de Actopan
Authors: Victoria José Guadalupe
Published: October 2016

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Mario Castelnuovo-Tedesco (presencia toscana en la música)
Authors: Velazco Jorge
Published: October 2016

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El órgano de la parroquia "La Purisima Concepción" de Real de Catorce, S. L.P.
Authors: Drewes Michael
Published: October 2016

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Notas sobre lo religioso y lo profano en las festividades de hoy
Authors: Dallal Alberto
Published: October 2016

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L'Histoire sociale de L'art: Un alibi?
Authors: Hadjinicolaou Nicolás
Published: October 2016

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La cromoterapia costumbrista de Rodolfo Halffter
Authors: Velazco Jorge
Published: October 2016

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Francisco de Chavida. Su obra arquitectónica en Querétaro
Authors: Ramírez Montes Mina
Published: October 2016

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Nueva información sobre la pintura de Cristóbal de Villalpando en Guatemala
Authors: Luján Muñoz Luis
Published: October 2016

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La esfera en la obra de Roberto Montenegro: un análisis iconográfico
Authors: Ortiz Gaitán Julieta
Published: October 2016

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La representación de pájaros en el arte teotihuacano
Authors: Foncerrada de Molina Marta
Published: October 2016

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Arquitectura religiosa contemporánea en México
Authors: Noelle Louise
Published: October 2016

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La Tabla de Cebes en la Biblioteca Nacional
Authors: Báez Macías Eduardo
Published: October 2016

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La azarosa supervivencia de un monumento
Authors: Victoria José Guadalupe
Published: October 2016

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Los antiguos señores mixtecos de Acatlán, Puebla, en los códices Sánchez Solís y Tulane
Authors: Pascual Soto Arturo
Published: October 2016

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José Clemente Orozco. En Torno a las "Cartas a Margarita"
Authors: Del Conde Teresa
Published: October 2016

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Vincent Wallace, representante del romanticismo en la ópera inglesa
Authors: Velazco Jorge
Published: October 2016

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Algunas notas más sobre iconografía Guadalupana
Authors: Vargaslugo Elisa
Published: October 2016

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Un singular ejemplo de piedad Mariana. Notas en torno a una pintura de la Virgen de Guadalupe
Authors: Victoria José Guadalupe
Published: October 2016

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Los autorretratos de Diego Rivera
Authors: Moyssén Xavier
Published: October 2016

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La portada de la Iglesia de San Fernando en la ciudad de México. Imagen e Idea
Authors: Cómez Rafael
Published: October 2016

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El órgano positivo en el claustro de Sor Juana Inés de la Cruz. Un caso único en su género en México
Authors: Drewes Michael
Published: October 2016

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Antonia Mercé "La Argentina" en México
Authors: Dallal Alberto
Published: October 2016

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Algunos datos sobre la obra de Roberto Montenegro en Mallorca
Authors: Ortiz Gaitán Julieta
Published: October 2016

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Chicomoztoc o el noroeste mesoamericano
Authors: Hers Marie-Areti
Published: October 2016

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PRODUÇÃO DO ESPAÇO, ORDENAMENTO DO TERRITÓRIO E CRIMINALIDADE: o caso da cidade da Praia, Cabo-Verde
Authors: Correia Gilson Bento , Tavares Carlos
Published: October 2016

O artigo aborda uma discussão sobre a produção do espaço, ordenamento do território e criminalidade na cidade da Praia com base nas análises tendo como referência os conceitos do espaço e território. O trabalho tem como objetivo analisar a forma como o espaço da cidade da Praia é produzido, ordenado e como isso pode influenciar na prática dos crimes. Os resultados obtidos mostram que diferentes atores produzem ações no espaço urbano da cidade de acordo com as relações do poder, e a maioria dessas ações realizadas no espaço da cidade da Praia não estabelece uma norma no ordenamento do território, principalmente nas áreas urbanas informais/espontâneas, tornando um fator preponderante na prática de alguns crimes.

Palavras-chave: Produção do Espaço; Ordenamento do Território; Criminalidade; Cidade da Praia.

 

SPACE PRODUCTION, SPATIAL PLANNING AND CRIMINALITY: the case of Praia city, Cape Verde

Abstract

The article discusses a discussion of the production of space, regional planning and crime in Praia city based on the analysis by reference to the concepts of space and territory. The study aims to examine how the Praia City space is produced, ordered and how it can influence the practice of crimes. The results show that different actors produce actions in the urban space of the city according to the power of relationships, and most of these actions taken on Praia city space does not establish a standard in spatial planning, especially in informal / spontaneous urban areas making a major factor in the commission of certain crimes.

Keywords: Space Production; Spatial Planning; Criminality; Praia City.

 

PRODUCCIÓN DEL ESPACIO, ORDENAMIENTO DEL TERRITORIO Y CRIMINALIDAD: EL CASO DE CIUDAD DE PRAIA - CABO VERDE

Resumen

 El artículo aborda la discusión sobre la producción de espacio, ordenamiento del territorio y criminalidad en la ciudad de Praia con base en los análisis teniendo como referencia los conceptos de espacio y territorio. El trabajo tiene como objetivo analizar la forma como el espacio de la ciudad de Praia es producido, ordenado y como eso puede influenciar en la práctica de los crímenes. Los resultados obtenidos muestran que diferentes actores producen acciones en el espacio urbano de la ciudad de acuerdo con las relaciones de poder, y la mayoría de esas acciones realizadas en el espacio de la ciudad de Praia no establecen una norma en el ordenamiento del territorio, principalmente en las áreas urbanas informales/espontaneas, convirtiéndose en un factor preponderante en la práctica de algunos crímenes.

Palabras-clave: Producción del Espacio; Ordenamiento del Territorio; Criminalidad; Ciudad de Praia.
O IHGB E A NOÇÃO TROPICAL DO BRASIL: a busca pelos “Alegres Trópicos”
Authors: Barbato Luis Fernando Tosta
Published: October 2016

O que pretendemos neste artigo é mostrar como os trópicos foram tratados pelos membros do Instituto Histórico e Geográfico Brasileiro de maneira a configurarem como elemento positivo, e assim, integrar-se como uma das bases da construção da identidade nacional brasileira. A partir da análise dos artigos publicados nas revistas do IHGB do século XIX, poderemos observar como o clima tropical, mesmo sendo objeto de detração na Europa, foi ressaltado como elemento capaz de despertar o orgulho nacional brasileiro.

Palavras-chave: Clima Tropical; IHGB; Historiografia.

 

THE IHGB AND TROPICAL NOTION OF BRAZIL: the search for the "Alegres Trópicos"

Abstract

Our intention in this article is to show how the tropics have been treated by members of the Instituto Histórico e Geográfico Brasileiro in order to be configured as a positive element, and thus be integrated as one of the bases of the construction of Brazilian national identity. From the analysis of articles published in journals from IHGB the nineteenth century, we can observe how the tropical climate, even though detraction object in Europe, was highlighted as an element capable of awakening the Brazilian national pride.

Keywords: Tropical Climate; IHGB; Historiography.

 

EL IHGB Y LA NOCIÓN TROPICAL DE BRASIL: la búsqueda por los "Alegres Trópicos"

Resumen

Nuestra intención en este artículo es mostrar cómo los trópicos han sido tratados por los miembros del Instituto Histórico e Geográfico Brasileiro, con el fin de ser tratado como un elemento positivo, y por lo tanto, ser integrado como una de las bases de la construcción de la identidad nacional brasileña. A partir del análisis de los artículos publicados en las revistas del IHGB el siglo XIX, podemos observar cómo el clima tropical, a pesar de la detracción en Europa, se destacó como un elemento capaz de despertar el orgullo nacional brasileño.

Palabras-clave: Clima Tropical; IHGB; Historiografía.
Plasma Seminal (Revisão)
Authors: Araújo Amanda Melo Sant’Anna
Published: October 2016

Seminal plasma serves as a vehicle for ejaculated spermatozoa consisting of a mixture of secretions from the male accessory glands and testis. Has an important physiological significance as a carrier of the male gametes to the female genital tract, giving conditions for enabling the fertilization process. It had been found that the content of seminal plasma may influence male fertility. Studies indicate that the ability of sperm to bind to heparin and other glycosaminoglycans is correlated with semen quality and fertility. The proteins with binding site for heparin in seminal plasma influence on fertility. Seminal plasma protects spermatozoa seems to be phagocytosed.
Avaliação das características clínicas, morfométricas e do perfil bioquímico de cordeiros tratados com rBST (Somatotropina Bovina Recombinante)
Authors: Sant’ana Valéria Caobianco , Santos Robson Oliveira dos , Rodrigues Edson , Dambit Tamiris Franke , Ferreira Márcio Augusto
Published: October 2016

Somatotropin is a proteinic hormone known for countless effects in the general metabolism of the body, as the increase in the soft and osseous tissues and the stimulus to the production of milk.  For the present study 47 lambs of the breed “Santa Inês” were used.  They were from the same place and were divided into two groups:  one treatment-group (n = 27), which was treated with two applications of 250 mg of rBST (Boostin®), via subcutaneous in the ischium-retal region. The average age were 35 to 41 days old (M1) and 55 and 61 days old (M2). The control-group (n = 20) received injections of physiological solution in suitable content. Clinical, morphometric, weight and biochemical evaluations were performed before the treatment and fortnightly. According to the results observed it was possible to conclude that the treatment has not influenced the gaining of weight of the animals, not even the measure used in morphometry.  The usage of rBST has not caused any side effect in the health of the lambs or any alteration in the place of the application.  The biochemical profile of the animals has not suffered any changes that could be connected to the treatment
Effects of laser focusing properties on weldability in high-power fiber laser welding of thick high-strength steel plate
Authors: Matsumoto Naoyuki , Kawahito Yousuke , Nishimoto Koji , Katayama Seiji
Published: October 2016

The effect of various high-power laser-welding parameters on obtaining deep penetration welds without weld defects has been investigated. However, there are no studies on the effect of laser focusing. In this study, high-power fiber laser welding of a 12-mm-thick high-strength steel plate was performed by using two optics systems with different power density distributions and focus depths (2 or 4 mm) to investigate the effects of laser focusing properties on weldability. Full penetration welds without weld defects were obtained with the 4 mm focus depth optics system at low welding speeds of 25–50 mm/s. High-speed video and X-ray transmission images showed that the behavior of the molten pool on the top surface during laser welding was more stable for the 4 mm system than for the 2 mm system. The keyhole was stable with no large fluctuations, and no bubbles were formed in the keyhole. This result was attributed to keeping the power density within 50–120 kW/mm2 to maintain a stable keyhole shape during the welding. Consequently, it was concluded that the laser-focusing properties during laser welding of a thick steel plate affected the weldability strongly, and the optics system with long focus depth was particularly useful in producing sound welds.
Ungulate movement in an extreme seasonal environment: year‐round movement patterns of high‐arctic muskoxen
Authors: Schmidt Niels M. , van Beest Floris M. , Mosbacher Jesper B. , Stelvig Mikkel , Hansen Lars H. , Nabe‐Nielsen Jacob , Gr⊘ndahl Carsten
Published: October 2016

Detailed knowledge on movement behaviour of free‐ranging muskoxen Ovibos moschatus is currently lacking. Quantifying variation in individual movement and the variables driving such patterns is important to understand how they meet their basic requirements and to inform management. Because muskoxen exist in nutrient‐poor systems with extreme climatic and seasonal variability, individual movement patterns are expected to be largely dependent on environmental conditions and the seasonal variation therein. We analysed high‐resolution location data of 14 adult female muskoxen roaming around Zackenberg in northeast Greenland (74°28′N, 20°34′W). We assessed the relative importance (Akaike variable weights) of multiple extrinsic conditions in explaining variation in hourly speed, turning angles, and activity. We found that time of day, ambient temperature, and land cover types were the most important covariates explaining variation in fine‐scale movement and activity patterns throughout the year. Movement speeds were consistently lower in land cover types with more dense vegetation. Speed of movement was positively correlated with ambient temperature when the days were long, while negatively related with temperature in periods with few or no hours of daylight. Diurnal peaks in movement and activity patterns were observed most of the year (including mid‐winter months with 24‐h darkness), except during high‐summer (24‐h of daylight), when individual movement and activity remained continuously high. The topographic variation (elevation and slope) explained only a small part of the variation in muskox movement patterns in the areas where the muskoxen were observed. Analyses of displacement patterns revealed a mixture of movement behaviours. We conclude that muskoxen in high‐arctic Greenland adopt a largely nomadic movement behaviour, but do so within a rather small geographical area (app. 5000 km2), and that their movement and activity patterns are largely directed at finding suitable foraging patches and avoiding cold‐stress during harsh winter weather.
Nesting success of the oriental magpie robin Copsychus saularis in nest boxes and tree cavities
Authors: Singh Amar , Bhatt Dinesh , Sethi Vinaya Kumar , Dadwal Navjeevan
Published: October 2016

Information on the nesting success of birds in the Indian subcontinent is almost negligible. In the present study factors affecting nesting success were studied over four years (i.e. 2011–2014) in a color ringed population of the oriental magpie robin (OMR) in an urban habitat of Haridwar district (29°55′N, 78°08′E), Uttarakhand, India. Objectives of our study were 1) to assess whether nest box affects nesting success in the OMR or not 2) to compare breeding data obtained from nest boxes with tree cavities.

Out of total 114 nests built in both nest boxes and tree cavities, 80 nests were successful in producing at least one fledgling resulting 69.25% nesting success. Nesting success did not differ significantly between nest boxes and tree cavities or during different years. No correlation was found between territory size and nesting success (correlation coefficient = 0.41). Observations indicated that predation accounted for the maximum egg loss and nestling mortality. Predation rate was higher in tree cavities but did not differ significantly during different years and between nest boxes and tree cavities. In all years but 2011 clutch size was significantly higher in nest boxes than in tree cavities. However, incubation period, provisioning period, number of eggs hatched and number of young fledged did not differ significantly between nest boxes and tree cavities. When provided, nest boxes were occupied more frequently at all study sites indicating that nest box may act as an alternative nesting site for the OMR and perhaps for other secondary cavity nesters facing scarcity of nesting sites due to rapid urbanization.
Citizenship in religious clothing?
Authors: Jaoul Nicolas
Published: October 2016

B. R. Ambedkar (1891–1956) advocated the religious conversion of Dalits to Navayana Buddhism as the pillar of the future struggle against caste. This article examines the implications of this turn to religion for the Dalit movement. As shown by its convergence with Marx’s critique of bourgeois citizenship, Navayana exceeds the framework of political liberalism. It is argued, though, that Navayana is neither an orientalized version of liberal politics, nor is it fully contained by Marxism. The ethnography highlights the revival of Navayana in the 1990s in a context of disillusion with institutional politics. With the rise to political power of the Bahujan Samaj Party (BSP) in this period, Uttar Pradesh emerged as the new center of Dalit politics. However, the BSP government also disappointed many former activists, who then turned to the Navayana movement. What spaces and possibilities did Navayana open up to further the task of Dalit emancipation that political power failed to achieve? The ethnography highlights the Navayana movement’s practical difficulties and dilemmas, caused by its being advocated and practiced by secular minded activists hostile to popular religiosity.
Putting-out’s return
Authors: Campbell Stephen
Published: October 2016

Th is article engages Karl Marx’s account of labor’s historical subsumption to capital through an analysis of informalization in Thailand’s garment sector. In a historicist reading of Marx, the transition from formal to real subsumption, as in the shift from home-based putting-out work to factory-based wage labor, is unidirectional. The late twentieth-century proliferation of forms of labor that are but “formally subsumed” to capital challenges this linear narrative. Informalization in Thailand’s garment sector has entailed a shift from the real subsumption of factory-based wage labor to forms of home-based putting-out work subsumed “merely formally” to capital. Consequently, a nonhistoricist reading of Marx’s subsumption analytic remains relevant for understanding tensions within contemporary forms of putting-out work. Attention, as well, to the role of class struggle in mediating capitalist development reveals consistent logics in putting-out’s historical decline and its contemporary resurgence.
Engaged anthropology in the time of late liberalism
Authors: Chatterjee Moyukh
Published: October 2016

Cody, Francis. 2013. The light of knowledge: Literacy activism and the politics of writing in South India. Ithaca, NY: Cornell University Press.

Middleton, Townsend. 2015. The demands of recognition: State anthropology and ethnopolitics in Darjeeling. Stanford, CA: Stanford University Press.
Safety and efficacy of the Pipeline embolization device for treatment of intracranial aneurysms: a pooled analysis of 3 large studies
Authors: Kallmes David F. , Brinjikji Waleed , Cekirge Saruhan , Fiorella David , Hanel Ricardo A. , Jabbour Pascal , Lopes Demetrius , Lylyk Pedro , McDougall Cameron G. , Siddiqui Adnan
Published: October 2016

OBJECTIVE

The authors performed a pooled analysis of 3 studies—IntrePED (International Retrospective Study of the Pipeline Embolization Device), PUFS (Pipeline for Uncoilable or Failed Aneurysms Study), and ASPIRe (Aneurysm Study of Pipeline in an Observational Registry)—in order to assess angiographic outcomes and clinical safety of the Pipeline embolization device (PED).

METHODS

IntrePED was a retrospective study, while PUFS and ASPIRe were prospective studies. For each patient included in these studies, the authors collected baseline demographic data, aneurysm characteristics, and procedural details. The primary outcomes for this combined analysis were clinical outcomes, including neurological morbidity and mortality and major ipsilateral intracranial hemorrhage and ischemic stroke. The secondary outcomes were angiographic occlusion rates, which were available for ASPIRe and PUFS only.

RESULTS

A total of 1092 patients with 1221 aneurysms were included across the 3 studies. The mean aneurysm size was 12.0 ± 7.8 mm and the mean neck size was 6.6 ± 4.8 mm. The major ipsilateral ischemic stroke rate was 3.7% (40/1091). The major ipsilateral intracranial hemorrhage rate was 2.0% (22/1091). The major neurological morbidity rate was 5.7% (62/1091). The neurological mortality rate was 3.3% (36/1091). The combined major morbidity and neurological mortality rate was 7.1% (78/1091). The complete occlusion rates were 75.0% at 180 days (111/148) and 85.5% at 1 year (94/110). The overall aneurysm retreatment rate was 3.0% (33/1091) at a mean follow-up time of 10.2 ± 10.8 months.

CONCLUSIONS

Endovascular treatment of intracranial aneurysms with the PED is safe and effective. Angiographic occlusion rates progressed with follow-up. Rates of stroke, hemorrhage, morbidity and mortality, and retreatment were low, especially given the fact that the aneurysms treated were generally large and wide necked.