bluuebunny/crossref_metadata_2025 huggingface dataset:
Façonner un lieu dans la ville et une singularité de la marque urbaine : exemple des usages des images photographiques dans le quartier de la Mouraria à Lisbonne
Authors: Galhardo Jacques
Published: July 2018

La photographie joue un rôle important dans la réhabilitation des centres anciens urbains : elle offre l’opportunité aux acteurs locaux de revendiquer, de promouvoir ou de dénoncer une action publique patrimoniale. L’analyse des photographies, au cours du temps, m’a permis de comprendre ce qui est défini comme patrimoine matériel ou immatériel ; mais surtout les processus de « désoccultation » d’un angle mort de la ville. Loin d’être uniquement un outil de communication ou de l’arrangement, la production photographique et ses usages divers favorisent les processus d’intégration urbaine d’un quartier, longtemps considéré comme marginal par les acteurs locaux de Lisbonne : la Mouraria. Ceci me conduit à discuter les effets de ces usages de l’image sur le quartier lui-même et ses habitants. Cet article a comme objectif de montrer, à travers des exemples photographiques, que les points de vue affirmés – loin de construire une image convergente d’un quartier ou de la ville – produisent un ensemble de fragmentations socio-spatiales et des ambiguïtés dans la construction de l’urbain, comme dans la place des résidents. Les distinctions entre image publique et privée ou entre image institutionnelle et associative tendent à être moins évidentes au fur et à mesure de l’intervention municipale. Les photographies peuvent alors apparaître comme un matériau propice à la manipulation des acteurs locaux. Je tenterai de montrer que ces derniers tirent également profit du jeu en négociant, dans l’espace public, ces images.
Ecological Cycle of the Novice Teachers in the Induction Process
Authors: Ocal Secil Dayioglu
Published: July 2018

In this chapter, the condition of the novice teachers is scrutinized within Bronfenbrenner's ecological systems theory (EST). The theory was originated in the psychology concerning human development. The nests in EST are dealt with concerning the novice teachers. “Microsystem” is considered as a professional “family” for them to make them acquire the ecological environment of the school. The parents of the students and the school administrators and the residents of the school environment are included in “mesosystem.” The educational system is totally defined as “exosystem” and all other systems such as economic and political systems are involved in “macrosystem.” “Chronosystem” focuses on development and transformation of the novice teachers to become real teachers in time. Among these nests, the novice teachers have face-to-face contact with the first two nests and they have secondary contact with other though they sometimes get affected more. Moreover, this theory contributes to the professional development of these within the educational socio-cultural context.
Teacher Induction for Teachers Prepared Online
Authors: Richardson Michael D. , Yates Marguerite H. , Lemoine Pamela A.
Published: July 2018

Innovation and change in university preparation of teachers requires acquisition of technological pedagogy in response to the demands of a knowledge economy where students are engaged in technology implementation in a constantly changing world. Teacher preparation programs historically have been contained on campus using face-to-face instruction. As the second decade of the twenty-first century unfolds, universities have adopted online learning in teacher preparation to accommodate the needs of a more diverse clientele. Educator preparation now faces two major challenges: a critical mass generated by net generation students who have increased demands for online access to learning and a teaching force without prerequisite skills and dispositions to dramatically alter modes of instruction.
Increasing Territorial Economic Growth Through Cost Optimization in the Digital Economy
Authors: Gamidullaeva Leyla Ayvarovna , Potapova Irina , Shatokhin Michael
Published: July 2018

Currently, rapid urbanization is taking place in Russia under the influence of globalization processes. Russian economic growth is mostly based on the natural resources and the need to speed up its industrialization process. Today there is a change of economic model associated with the transition from the stage of industrialization to the post-industrial economy. Emphasis shifts from production to the provision of services. In the digital economy, where the major resources required for the production of quality products are time and information, the concept of cost management should be reconsidered. The new paradigm of cost management should take into account the changes in approaches to the management of material, labor, and financial costs, and include approaches, tools, and methods of cost control of resources, updated by digital post-industrial economy. A sectorial and territorial specific of the process of change of economic model requires strategic approach to cost management.
The Business of Tourism
Authors: Camilleri Mark Anthony
Published: July 2018

This chapter introduces its readers to the concept of tourism. It sheds light on the rationale for tourism, as it explains the tourists' inherent motivations to travel. It also describes different aspects that together make up the tourism industry. Tourists travel to destinations that are accessible to them. They require accommodation if they are visiting a place for more than 24 hours. Leisure and business travelers may also visit attractions and engage themselves in recreational activities. Hence, the tourist destinations should have the right amenities and facilities. In this light, this chapter clarifies how destinations may offer different products to satisfy a wide array of tourists. Tourism products can include urban (or city) tourism, seaside tourism, rural tourism, ecotourism, wine tourism, culinary tourism, health tourism, medical tourism, religious tourism, cultural (or heritage) tourism, sports tourism, educational tourism, business tourism (including meetings, incentives, conferences, and events), among others.
How Foreign Tourist Intermediaries Perceive and Sell a Destination
Authors: Gomes Ana Mano , Augusto da Costa Rui , Moreira António Carrizo
Published: July 2018

Research on tourist destination images is vast and embraces many destinations, approaches, and methods. More attention has been given to the perspective of final customers, instead of the ones who sell the tourist products to them. This chapter aims to understand how foreign tourist intermediaries, from the top outbound countries, perceive and sell Portugal as a tourist destination. It aims also to analyze the travel motivations they expect Portugal can satisfy and the information sources used to collect information to create tourist products regarding this destination. Foreign tourist intermediaries have a very positive image of Portugal as a destination, associating it to a set of cognitive attributes and psychological motivations.
The Use of Differential Pricing in Tourism and Hospitality
Authors: Mauri Aurelio G. , Sainaghi Ruggero , Viglia Giampaolo
Published: July 2018

Due to the widespread adoption of revenue management strategies within the hospitality business, pricing has become more and more a central topic both for academics and practitioners. In particular, pricing has evolved towards value-based approaches, dynamic and customized through the use of price differentiation. “Rate fences” are the criteria that hotels adopt to separate customer segments whose service values may differ. The purpose of this chapter is to analyze the academic literature as well as the business practices relating to this subject. The authors propose a logical link between rate fences and the hedonic pricing approach. Main topics are 1) rate fence classifications and 2) the effectiveness of rate fences and their impacts on perceptions of fairness. Overall, this contribution suggests that time-based rate fences are fundamental at the destination level, and they are strictly connected to seasonality. Destinations' policymakers and firms can consider strategies and tools for overcoming seasonality, including special events that may take place in a destination.
Sustaining Tourism and Branding
Authors: Çalişkan Caner , Dedeoglu Bekir Bora
Published: July 2018

Branding with local dynamics is crucial to sustain tourism for a destination's existence and future. In this case, many stakeholder groups are responsible for the participation, social cohesion, economy, and environment. Thus, the authors conducted face-to-face interviews with seven key persons related to regional tourism development in the research area, Adıyaman. Research results show that in Adıyaman, a strong partnership, cooperation, and cohesion for sustainable tourism and branding is needed. The use of local dynamics—such as values, natural resources, education, and manpower—is an important variable of sustainable tourism and branding process.
Automation of Marginal Grass Harvesting
Authors: Peças Paulo , Fonseca Gonçalo Manuel , Ribeiro Inês Inês , Sørensen Claus Grøn
Published: July 2018

In the European Union (EU), the use of fossil fuels brings several disadvantages, as they are the main culprits responsible for pollutants and GHG emissions. The increasing demand for sustainable fuels leads to the research of alternative technologies, such as biogas production from lignocellulosic materials. Therefore, the acquisition of biomass from marginal areas under Danish conditions has been evaluated in terms of alternative harvesting equipment: an automated robot (Grassbot) versus a regular tractor for key grass materials used for biogas plants (chopped, unchopped, and baled grass) and compared regarding operational, economical, and environmental performances. The evaluation uses two operations models (IRIS and DRIFT) to consider the field characteristics, machinery characteristics, etc. Selected results show that in terms of fuel consumption, chopping, and mowing are the most demanding operations, and that there is no significant difference between the harvesting equipment regarding CO2 emissions.
Sustainable Smart-Farming Framework
Authors: Agarwal Pankaj , Singh Vijander , Saini G. L. , Panwar Deepak
Published: July 2018

Agriculture and allied activities play a vital role in a country's economic prosperity. The conventional methods in agricultural practices have become insufficient to cater to the increasing needs. To fulfill the demands, new technologies are to be introduced to raise agricultural standards. Over the past few years, there has been significant interest in designing smart agricultural systems. The manageability of agricultural frameworks has turned into a noteworthy concentration for discusses about future human survival. A significant part of the contention seems to depend on shortsighted understanding of biological models and flops enough to define what maintainability goals are being looked for. To adapt to the undeniably multifaceted nature and between connectedness of current cultivating frameworks with regards to globalization and potential bothers like environmental change, we require a pluralistic way to deal with strategy, which can adapt to the abnormal amounts of vulnerability in these territories and which enables most extreme flexibility of reaction to evolving conditions.
Data Mining Problems Classification and Techniques
Authors: Rahman Nayem
Published: July 2018

Data mining techniques are widely used to uncover hidden knowledge that cannot be extracted using conventional information retrieval and data analytics tools or using any manual techniques. Different data mining techniques have evolved over the last two decades and solve a wide variety of business problems. Different techniques have been proposed. Practitioners and researchers in both industry and academia continuously develop and experiment with variety of data mining techniques. This article provides a consolidated list of problems being solved by different data mining techniques. The author presents up to three techniques that can be used to address a particular type of problem. The objective is to assist practitioners and researchers to have a holistic view of data mining techniques, and the problems being solved by them. This article also provides an overview of data mining problems solved in the healthcare industry. The article also highlights as to how big data technologies are leveraged in handling and processing huge amounts of complex data from data mining perspectives.
The Communicating and Marketing of Radicalism
Authors: McElreath David H. , Doss Daniel Adrian , McElreath Leisa , Lindsley Ashley , Lusk Glenna , Skinner Joseph , Wellman Ashley
Published: July 2018

This article considers social media as a radicalization venue within the context of terrorism. The 2016 extremist/terrorist attack in Orlando, Florida showed the potential of an ISIS type extremist organization to leverage social media toward a lethal outcome within American society. While the ISIS organization originated overseas in a culture of which mainstream American society is unfamiliar, it is in many ways remarkable the level of success they quickly achieved connecting globally. Their efforts reflect the potential of social media to market a message of radicalism worldwide toward generating murderous converts who are willing to travel to join the fight or attack at home. Given these notions, this article considers the use of social media as an extremist cyber-recruitment tool.
Computer Use Skills of Undergraduate Students in Bells University of Technology, OTA
Authors: Oshilalu Habdulhakeem Adeyinka , Emiri T. Ogochukwu
Published: July 2018

The continuous adoption and use of technology in education has necessitated the need for computer use skills to all stakeholders in the educational sector. Apparently, education in the present age is characterized by the adoption and use of technology. Bells University of Technology, Ota, is a private institution that have demonstrated the use of technology in teaching, learning and research processes. This work is thereby aimed at determining students' ability to use educational technologies using Bells University of Technology as a case study. A structured questionnaire was adopted and used to generate inferences from 300 students that served as the population of the study. Findings revealed that the computer ability of a significant number (75%) of the newly admitted students is low and that will have an adverse effect on their ability to cope with a computerized educational system. The study thereby recommends the need for hands-on computer training sessions to students gaining admission into the institution.
Comparison of Conventional, Powder Mixed, and Ultrasonic Assisted EDM by Phenomenological Reasoning
Authors: Rajeswari R. , Shunmugam M.S.
Published: July 2018

Electro-discharge machining (EDM) is widely used in industries for machining complex shapes and difficult-to-machine materials that are conductive. In the present work, performance of conventional die-sinking EDM process is compared with powder mixed and ultrasonic assisted processes in machining of D3 steel. Using different sets of parameters for rough and finish ED machining, material removal rate and surface roughness are obtained experimentally. The influences of the parameters on material removal rate and surface roughness are presented on the basis of phenomenological reasoning. The results are discussed and suitable recommendations for the practitioners are included.
Preparation and Characterization of Cellulose Acetate from Pineapple (Ananas comosus) Leaves
Authors: Egot Marycris P. , Alguno Arnold C.
Published: July 2018

Pineapple leaves was utilized for the fabrication of cellulose acetate. It underwent a series of process that includes alkaline treatment using sodium hydroxide aqueous solution, bleaching treatment using acetate buffer and aqueous sodium chlorite, and acetylation using acetic anhydride. The preparation of cellulose acetate was done in different acetylation times (8, 16, 24 and 32 hours). The cellulose acetate samples were then characterized using fourier transform infrared spectroscopy (FTIR) to elucidate the vibrational move, thermal gravimetric analysis (TGA) and differential thermal analysis (DTA) to investigate the thermal property of the material and scanning electron microscopy (SEM) to examine the surface morphology. FTIR result showed significant decrease in absorption intensity of the O-H stretch after the acetylation which indicates the substitution of hydroxyl group by acetyl group. On the other hand, the emergence of C=O stretch of the ester group and C-O stretch of acetyl group can be observed which indicates the formation of cellulose acetate. TGA and DTA also shows enhanced thermal stability of cellulose acetate prepared in 16 hrs acetylation period. Increasing the reaction time to 24 hrs and 32 hrs resulted to significant decrease in thermal stability. SEM images revealed the deterioration on the physical structure of cellulose after 24 hrs acetylation.
Community based health insurance scheme: Preferences of rural dwellers of the federal capital territory Abuja, Nigeria
Authors: Ogben Christiana , Ilesanmi Olayinka
Published: July 2018

In 2010, community based health insurance scheme (CBHIS) was launched in the Federal Capital Territory (FCT) of Nigeria. Little is known about the preferences and perception of the rural dwellers of the FCT about the scheme. This study aimed to determine the preferences of healthcare consumers towards CBHIS in FCT. A descriptive cross sectional study of 287 household heads was done. Systematic random sampling was used. Information was collected using a semi-structured, interviewer administered questionnaire. Data was analysed with SPSS version 21. Male respondents were 175 (61%), 242 (84.3%) were aware of the existence of CBHIS, 126 (82%) also enrolled their dependents. Annual payment of health insurance premium was preferred by 91 (59.9%) of enrolled respondents, 92 (60.1%) enrolled in the scheme because they perceived it to be a cheap way to access healthcare. No proper understanding was the reason why 33 (28.4%) of those aware of the scheme did not enroll themselves or their dependents. Only 124 (55.1%) were satisfied with the overall services provided to them by their health care provider (HCP). More community enlightenment on CBHIS is required. There is a need to factor in the preferences of the community members into the FCTCBHIS to determine what community members are willing to pay for their healthcare premium and how making contributions will be convenient for them.
Getting Back on the Horse: Sport-Specific Return to Play in Rodeo Athletes After Concussion Injury
Authors: Wicklund Alissa , Foster Shayla D. , Roy Ashley A.
Published: July 2018

Context: 

Despite a high incidence of injury in their sport, rodeo athletes have been underrepresented in the concussion literature. No standard postconcussion protocols are available across rodeo organizations for evaluating fitness to return to competition.

Objective: 

To review the literature on concussion in rodeo, examine published guidelines, and offer an active return-to-play (RTP) protocol specific to rodeo athletes.

Background: 

Unique barriers complicate the management and treatment of rodeo athletes with concussion, such as the solo nature of the sport, lack of consistent access to health care professionals, and athletic conditioning that often occurs outside of a traditional gym-based exercise regimen. In addition, the rodeo culture encourages a swift return to competition after injury.

Description: 

Best practices for managing concussion are removal from activity, proper diagnostic evaluation, and gradual return to sport, with medical clearance when an athlete is symptom free and able to tolerate cognitive and physical exertion. An RTP protocol for rodeo events needs to capture the distinctive features and challenges of the sport and its athletes.

Clinical Advantages: 

Rodeo athletes would benefit from an RTP protocol that can be initiated by an athletic trainer or medical professional in the acute stage of injury, integrates exercise into activities of daily living, and is appropriate for athletes who travel frequently. At the organizational sport level, a formal RTP protocol could enhance consistency in medical-clearance techniques among providers responsible for the return to sport of rodeo athletes.

Conclusions: 

Rodeo athletes represent a sport population that has received little formal guidance on the diagnosis, management, and RTP after concussion. A sport-specific RTP protocol sensitive to the particular culture of these athletes is an important first step in protecting the health and safety of rodeo athletes after a concussive injury.
Northern Ghana final-year nurses’ attitudes towards nursing and remaining post qualification
Authors: Abugri Atuut , Jarvis Mary-Ann
Published: July 2018

Background: Recruitment and retention concerns nursing globally, including Ghana, as the country attempts to meet health demands. A link exists between nursing students’ attitudes towards nursing and decisions to enter, remain in or withdraw from the profession.Objectives: To describe northern Ghana final-year student nurses’ current attitudes towards nursing and remaining in nursing post qualification.Method: Non-experimental quantitative descriptive design used convenient sampling targeting final third-year student nurses (n = 80) studying towards a Diploma in Registered General Nursing in a northern Ghana college (N = 220). Data were gathered using the attitude dimension of a self-administered questionnaire, developed by Al-Omar.Results: The response rate was 87.5% (n = 70). Respondents were 20–30 years of age, more men and predominantly from urban areas. The mean attitude dimension score (range 10–50) was 35.41 (SD 4.03) with no skewness (0.37); mean of single-item question about intention to stay in nursing was 3.68 (SD 1.14) with negative skewness (-0.92). Male and urban respondents’ attitudes were more positive than those of female respondents. No association was found between attitude score and demographics or intention to stay in nursing, but significant association was found between gender and habitation and attitude categories. Medium positive correlation existed between intent to stay in nursing and attitude score. Pay, travel opportunities and nursing being a challenging career attracted unfavourable attitudes.Conclusion: Ghanaian male student nurses’ attitudes are non-typical of general stereotypes held of nurses and gender, suggesting increased recruitment of male nurses. Demographic variables hold a small amount of value in the development of attitudes in Ghanaian nurses.
Об одном подходе к разложению иррациональных чисел
Authors: Nesterenko Alexey Yur'evich
Published: July 2018

Рассматривается новый подход к представлению иррациональных чисел, задаваемых быстро сходящимися рядами, в произвольной системе счисления. Приведены алгоритмы представления чисел, принадлежащих двум большим классам, а также оценки числа шагов в предложенных алгоритмах и объема используемой при вычислениях памяти. Проведено исследование возможности эффективной реализации этих алгоритмов.
On quantiles of minimal codeword weights of random linear codes over $\mathbf{F}_p$
Authors: Zubkov Andrei Mikhailovich , Kruglov Vasilii Igorevich
Published: July 2018

Получены явные уравнения для двусторонних оценок квантилей распределений минимальных весов ненулевых кодовых слов в случайных равновероятных линейных кодах заданной размерности над простым полем $\mathbf{F}_p$. Показано, что разности между квантилями этих распределений ограничены величинами, зависящими только от $p$ и уровней квантилей.
Problem gambling severity and involvement in a self-help treatment: Comparison of problem gamblers based on recruitment method
Authors: Boudreault Catherine , Giroux Isabelle
Published: July 2018

A better understanding of the repercussions of the means used to recommend psychological treatment could help to mitigate the low consultation rate among gamblers. This study compares the severity of the gambling problems as measured by the Problem Gambling Severity Index (PGSI) and engagement in self-adminstered treatment by problem gamblers, based on their recruitment method (advertisements vs. volunteer bank). In total, 27 gamblers were recruited by advertisements, and 31 came from a bank of volunteers, to participate in studies on gambling. All the participants took part in self-administered treatment, including a self-treatment manual and motivational telephone conversations. The results suggested that the gamblers recruited by the advertisements presented, at the time of recruitment, a significantly higher PGSI score than those recruited instead through the volunteer bank. Furthermore, the number of phases of the self-treatment manual completed, and the proportion of individuals who gave up treatment after a period of 11 weeks, did not differ significantly between the two groups. The results suggest that using different recruitment methods could work to reach those gamblers who do not actively seek help, and that this use of different methods will not affect their engagement in the treatment.RésuméUne meilleure compréhension des répercussions des moyens employés pour proposer les traitements psychologiques pourrait contribuer à pallier les faibles taux de consultation chez les joueurs. La présente étude compare la gravité des problèmes de jeu mesurée par l’Indice de gravité du jeu problématique (IGJP) et l’implication dans un traitement auto-administré chez les joueurs problématiques selon leur mode de recrutement (annonces publicitaires c. banque de volontaires). Au total, 27 joueurs sont recrutés par annonces publicitaires et 31 joueurs proviennent d’une banque de personnes volontaires à participer à des études sur les jeux de hasard et d’argent. Tous les participants prennent part à un traitement auto-administré incluant un manuel d’auto-traitement et des entretiens téléphoniques de type motivationnel. Les résultats indiquent que les joueurs recrutés par annonces publicitaires présentent, au moment de leur recrutement, un score à l’IGJP significativement plus élevé que ceux recrutés par la banque de volontaires. De plus, le nombre de phases du manuel d’auto-traitement complétées et la proportion d’individus abandonnant le traitement après une période de 11 semaines ne diffère pas significativement entre les deux groupes. Les résultats suggèrent que le recours à différentes méthodes de recrutement puisse aider à rejoindre des joueurs ne recherchant pas activement d’aide et que ceci n’affecte pas l’implication dans le traitement.
MOPSMAP v1.0: a versatile tool for the modeling of aerosol optical properties
Authors: Gasteiger Josef , Wiegner Matthias
Published: July 2018

Abstract. The spatiotemporal distribution and characterization of
aerosol particles are usually determined by remote-sensing and optical in
situ measurements. These measurements are indirect with respect to
microphysical properties, and thus inversion techniques are required to
determine the aerosol microphysics. Scattering theory provides the link
between microphysical and optical properties; it is not only needed for such
inversions but also for radiative budget calculations and climate modeling.
However, optical modeling can be very time-consuming, in particular if
nonspherical particles or complex ensembles are involved. In this paper we present the MOPSMAP package (Modeled optical
properties of ensembles of aerosol particles), which is computationally fast for optical
modeling even in the case of complex aerosols. The package consists of a data set
of pre-calculated optical properties of single aerosol particles, a Fortran
program to calculate the properties of user-defined aerosol ensembles, and a
user-friendly web interface for online calculations. Spheres, spheroids, and
a small set of irregular particle shapes are considered over a wide range of
sizes and refractive indices. MOPSMAP provides the fundamental optical
properties assuming random particle orientation, including the scattering
matrix for the selected wavelengths. Moreover, the output includes tables of
frequently used properties such as the single-scattering albedo, the
asymmetry parameter, or the lidar ratio. To demonstrate the wide range of
possible MOPSMAP applications, a selection of examples is presented, e.g.,
dealing with hygroscopic growth, mixtures of absorbing and non-absorbing
particles, the relevance of the size equivalence in the case of nonspherical
particles, and the variability in volcanic ash microphysics. The web interface is designed to be intuitive for expert and nonexpert users.
To support users a large set of default settings is available, e.g., several
wavelength-dependent refractive indices, climatologically representative size
distributions, and a parameterization of hygroscopic growth. Calculations are
possible for single wavelengths or user-defined sets (e.g., of specific
remote-sensing application). For expert users more options for the
microphysics are available. Plots for immediate visualization of the results
are shown. The complete output can be downloaded for further applications.
All input parameters and results are stored in the user's personal folder so
that calculations can easily be reproduced. The web interface is provided at
https://mopsmap.net (last access: 9 July 2018) and
the Fortran program including the data set is freely available for offline
calculations, e.g., when large numbers of different runs for sensitivity
studies are to be made.
INDOOR SPATIAL DATA CONSTRUCTION FROM TRIANGLE MESH
Authors: Kim D. , Bolat A. , Li K.-J.
Published: July 2018

Abstract. The 3D triangle mesh is widely used to represent indoor space. One of widely used methods of generating 3D triangle mesh data of indoor space is the construction from the point cloud collected using LIDAR. However, there are many problems in using generated triangle mesh data as a geometric representation of the indoor space. First, the number of triangles forming the triangle mesh is very large, which results in a bottleneck of the performance for storage and management. Second, no consideration on the properties of indoor space has been done by the previous work on mesh simplification for indoor geometric representation. Third, there is no research to construct indoor spatial standard data from triangle mesh data. For resolving these problems, we propose the a method for generating triangular mesh data for indoor geometric representation based in the observations mentioned above. First this method removes unnecessary objects and reduces the number of surfaces from the original fine-grained triangular mesh data using the properties of indoor space. Second, it also produces indoor geometric data in IndoorGML – an OGC standard for indoor spatial data model. In experimental studies, we present a case study of indoor triangle mesh data from real world and compare results with raw data.
IMPLEMENTATION OF A COMPREHENSIVE AND EFFECTIVE GEOPROCESSING WORKFLOW ENVIRONMENT
Authors: Lemmens R. , Toxopeus B. , Boerboom L. , Schouwenburg M. , Retsios B. , Nieuwenhuis W. , Mannaerts C.
Published: July 2018

Abstract. Many projects and research efforts implement geo-information (GI) workflows, ranging from very basic ones to complicated software processing chains. The creation of these workflows normally needs considerable expertise and sharing them is often hampered by undocumented and non-interoperable geoprocessing implementations. We believe that the visual representation of workflows can help in the creation, sharing and understanding of software processing of geodata. In our efforts we aim at bridging abstract and concrete workflow representations for the sake of easing the creation and sharing of simple geoprocessing logic within and across projects. We have implemented a first version of our workflow approach in one of our current projects. MARIS, the Mara Rangeland Information System, is being developed in the Mau Mara Serengeti SustainableWater Initiative (MaMaSe). It is a web client that uses the Integrated Land and Water Information System (ILWIS), our open source Remote Sensing and GIS software. It aims to integrate historic, near real time and near future forecast of rainfall, biomass, carrying capacity and livestock market information for the sustainable management of rangelands by conservancies in the Maasai Mara in Kenya. More importantly it aims to show results of a carrying capacity model implemented in a comprehensive geoprocessing workflow. In this paper we briefly describe our software and show the workflow implementation strategy and discuss the innovative aspects of our approach as well as our project evaluation and the opportunities for further grounding of our software development.
REPEATABLE DEPLOYMENT OF AN OPEN STANDARDS, OPEN SOURCE AND OPEN DATA STACK FOR BUILDING A FEDERATED MARINE DATA MANAGEMENT AND DECISION SUPPORT SYSTEM FOR SOUTH AFRICA
Authors: McFerren G. , Molapo R. , McAlister B.
Published: July 2018

Abstract. The National Oceans and Coastal Information Management System (OCIMS) of South Africa is a large, integrated IT system for enhancing oceans, coastal and maritime governance, and supporting sustainable economic utilisation of ocean and coastal resources. This article is a case study, describing how a range of Free and Open Source Software are deployed to generate the Open Standards based core of this federated system for providing decision support applications in addition to data and information management, access and dissemination services. This article demonstrates the importance of modern software development and deployment approaches in constructing the OCIMS core and easing the integration process with other systems in the federation. Finally, this article discusses some lessons learned and reflects on the lineage of OCIMS architectural choices and how these approaches may need to adapt to changing computing environments.
IMPROVING PATH QUERY PERFORMANCE IN PGROUTING USING A MAP GENERALIZATION APPROACH
Authors: Sankepally R. R. , Rajan K. S.
Published: July 2018

Abstract. pgRouting library provides functions to compute shortest path between any two points of a road network which is of great demand and also a topic of interest in the field of GIS, graph theory and transportation. To compute path in a road network, pgRouting functions process the entire road network which is a major bottleneck when it comes to routing in large road networks leading to the requirement of large server resources. A reduction/compression in the input network that is to be processed for path computation would improve the performance of pgRouting. In this study a map generalization based network model is proposed which extracts a significantly smaller subset of the road network aka skeleton which further used to divide the network into zones, that shall be selectively used in path computation. This results in processing a much smaller part of the network to compute path between any two points leading to an overall improvement in query performance of pgRouting when computing path, especially on large road networks. As part of assessment of this approach and its applicability to large road networks, the paper presents an in-depth analysis of the trade-offs between deviation in computed path and the performance gain in terms of space and time on road networks of varying sizes and topology to get a better understanding for both providing a sound proof of the utility of the proposed method and also to show its implementability within the current model of pgRouting or any other routing platforms.
NEW SOURCE OF GEOSPATIAL DATA: CROWDSENSING BY ASSISTED AND AUTONOMOUS VEHICLE TECHNOLOGIES
Authors: Toth C. K. , Koppanyi Z. , Lenzano M. G.
Published: July 2018

Abstract. The ongoing proliferation of remote sensing technologies in the consumer market has been rapidly reshaping the geospatial data acquisition world, and subsequently, the data processing as well as information dissemination processes. Smartphones have clearly established themselves as the primary crowdsourced data generators recently, and provide an incredible volume of remote sensed data with fairly good georeferencing. Besides the potential to map the environment of the smartphone users, they provide information to monitor the dynamic content of the object space. For example, real-time traffic monitoring is one of the most known and widely used real-time crowdsensed application, where the smartphones in vehicles jointly contribute to an unprecedentedly accurate traffic flow estimation. Now we are witnessing another milestone to happen, as driverless vehicle technologies will become another major source of crowdsensed data. Due to safety concerns, the requirements for sensing are higher, as the vehicles should sense other vehicles and the road infrastructure under any condition, not just daylight in favorable weather conditions, and at very fast speed. Furthermore, the sensing is based on using redundant and complementary sensor streams to achieve a robust object space reconstruction, needed to avoid collisions and maintain normal travel patterns. At this point, the remote sensed data in assisted and autonomous vehicles are discarded, or partially recorded for R&D purposes. However, in the long run, as vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication technologies mature, recording data will become a common place, and will provide an excellent source of geospatial information for road mapping, traffic monitoring, etc. This paper reviews the key characteristics of crowdsourced vehicle data based on experimental data, and then the processing aspects, including the Data Science and Deep Learning components.
LAND USE, MICROCLIMATE, AND SURFACE RUNOFF LINKAGES: SPACE-TIME MODELING FROM ROKEL-SELI RIVER BASIN, SIERRA LEONE
Authors: Wilson C. , Liang B. , Wilson S. , Akiwumi F.
Published: July 2018

Abstract. This study mainly utilized the Soil and Water Assessment Tool (SWAT) together with SWAT-CUP, both free and open source software (FOSS), to construct a distributed hydrologic flow model for the Rokel-Seli River basin, Sierra Leone, in a bid to spatiotemporally evaluate the role of changes in land use/land cover (LULC) and microclimate on streamflow regimes. The model was informed by LULC data derived from three Landsat satellite images collected in 2002, 2010, and 2016. The LULC data was generated with the aid of several python libraries accessed through the FOSS Anaconda Navigator. LULC change analysis demonstrated that between 2002 and 2016, urban, agricultural, water, and mining lands expanded significantly but forest cover reduced the most (−5.7 %). While average annual surface runoff dramatically increased from 2002 to 2010 (31.7 %), the period after the reservoir construction (2010–2016) recorded lower increase in surface runoff (0.9 %). Result of the study suggested that the construction of a major reservoir to support hydroelectricity in concert with significant loss of forest cover and shrub played a greater role in increasing surface runoff compared with the influence of microclimate.
HACKING SPATIAL DATA: AN EXAMPLE OF AGGREGATION PROBLEMS
Authors: Xiao N.
Published: July 2018

Abstract. Many applications using spatially aggregated data tend to treat the spatial units as given. For example, in the United States, analyses using the social and economic data often rely on the existing and fixed spatial units of census blocks or tracts. However, these spatial units are often aggregated arbitrarily. It is therefore important to ask this question: what if the spatial units are aggregated differently? Will the results obtained using the existing units still hold? This paper addresses questions like these. We first develop a search algorithm that can be used to find alternative aggregations with relatively equal total populations among the aggregated units. Then a number of experiments are conducted to test the algorithm and to demonstrate how alternative aggregations will affect the analysis. These experiments clearly suggest the significant effects of spatial aggregation on the analysis results.
BUILDING GEOSPATIAL COMPETENCES IN TANZANIAN UNIVERSITIES WITH OPEN SOURCE SOLUTIONS
Authors: Käyhkö N. , William C. , Mayunga J. , Makame M. O. , Mauya E. , Järvi A.
Published: July 2018

Abstract. The GEO-ICT is an institutional cooperation project aiming at improving the quality and societal relevance of geospatial and ICT research and education at the Universities of Dar es Salaam (UDSM), Ardhi University (ARU), State University of Zanzibar (SUZA) and Sokoine University of Agriculture (SUA). Jointly with the University of Turku (UTU) Finland, the institutions focus on strengthening geospatial and ICT skills of the staff, establishing new curricula, upgrading supportive infrastructures and creating synergetic cooperation modalities with different stakeholders in the society. In this paper we share how our practical experiences of the cooperation, including what is the background for the establishment of institutional cooperation between these universities, how is the project operating in practice, what type of activities and cooperation modalities we do together and how do we think institutional cooperation contributes to the advancement of geospatial expertise in Tanzania and what is the role of open source solutions in this development.
Adaptive stratified importance sampling: hybridization of extrapolation and importance sampling Monte Carlo methods for estimation of wind turbine extreme loads
Authors: Graf Peter , Dykes Katherine , Damiani Rick , Jonkman Jason , Veers Paul
Published: July 2018

Abstract. Wind turbine extreme load estimation is especially difficult
because turbulent inflow drives nonlinear turbine physics and control
strategies; thus there can be huge differences in turbine response to
essentially equivalent environmental conditions. The two main current
approaches, extrapolation and Monte Carlo sampling, are both unsatisfying:
extrapolation-based methods are dangerous because by definition they make
predictions outside the range of available data, but Monte Carlo methods
converge too slowly to routinely reach the desired 50-year return period
estimates. Thus a search for a better method is warranted. Here we introduce
an adaptive stratified importance sampling approach that allows for treating
the choice of environmental conditions at which to run simulations as a
stochastic optimization problem that minimizes the variance of unbiased
estimates of extreme loads. Furthermore, the framework, built on the
traditional bin-based approach used in extrapolation methods, provides a
close connection between sampling and extrapolation, and thus allows the
solution of the stochastic optimization (i.e., the optimal distribution of
simulations in different wind speed bins) to guide and recalibrate the
extrapolation. Results show that indeed this is a promising approach, as the
variance of both the Monte Carlo and extrapolation estimates are reduced
quickly by the adaptive procedure. We conclude, however, that due to the
extreme response variability in turbine loads to the same environmental
conditions, our method and any similar method quickly reaches its fundamental
limits, and that therefore our efforts going forward are best spent
elucidating the underlying causes of the response variability.
Tell el-Retaba: season 2016
Authors: Rzepka Sławomir , Hudec Jozef , Jarmużek Jarosław , Dubcová Veronika , Hulková Lucia
Published: July 2018

Excavations of the Polish–Slovak Archaeological Mission in Tell el-Retaba in 2016 were continued in the western part of the site, uncovering remains of domestic and funerary structures from the Second Intermediate Period in Area 4. Houses from the first half of the Eighteenth Dynasty were also investigated in this area. In Area 9, several houses from the Third Intermediate Period were explored and, for the first time, also substantial remains of a Late Period settlement, including at least one “tower house”.
Naqlun 2016: Hermitage EE.50 preliminary report
Authors: Godlewski Włodzimierz
Published: July 2018

During the 2016 season in Naqlun, dedicated to an array of specialist studies of material in the storeroom, the team documented one of the hermitages located in the hills west of the monastic compound. The work was necessitated by evident illicit digging which had partly destroyed the compound. The hermitage, which occupied a small valley, appears to have comprised at least three living units, furnished with rock-cut storage pits in the floor and niches in the walls. The doorways and niches bore traces of architectural rendering. The complex may be interpreted tentatively as a residential and religious complex, and it is a good example of a mid-5th century hermitage, the dating confirmed by a study of the pottery assemblage coming from it.
Pottery finds from Hermitage EE.50 in Naqlun: preliminary assessment of the assemblage
Authors: Danys Katarzyna
Published: July 2018

Rescue excavations undertaken in hermitage EE.50 in Naqlun in 2016 brought to light an extensive pottery assemblage composed of red-slipped goblets, bowls and plates of Egyptian origin, made of alluvial fabrics, and a few specimens imported from North African workshops. The repertoire of tableware was complemented with qullae made of marl and alluvial clays. Numerous cooking pots, pans and a single lid represent kitchen equipment. Goods were kept in large vessels of different types. Commodities such as wine, olive oil or fish sauce were delivered in amphorae: Egyptian LRA 7 and imported vessels, originating from North Africa (Tunisia), Cilicia, Cyprus and Rhodes(?). This assemblage has revealed some aspects of everyday life in the hermitage and confirmed the independent self-sufficient lifestyle of its inhabitants. The pottery assemblage is from the middle to the end of the 5th century AD.
Towards Consensus on Essential Components of Physical Examination in Primary Care-based Memory Clinics*
Authors: Heckman George A. , Franco Bryan B. , Lee Linda , Hillier Loretta , Boscart Veronique , Stolee Paul , Crutchlow Lauren , Dubin Joel A. , Molnar Frank , Seitz Dallas
Published: July 2018

BackgroundPrimary care-based memory clinics were established to meet the needs of persons with memory concerns. We aimed to identify: 1) physical examination maneuvers required to assess persons with possible dementia in specialist-supported primary care-based memory clinics, and 2) the best-suited clinicians to perform these maneuvers in this setting.MethodsWe distributed in-person and online surveys of clinicians in a network of 67 primary care-based memory clinics in Ontario, Canada.Results90 surveys were completed for an overall response rate of 66.7%. Assessments of vital signs, gait, and for features of Parkinsonism were identified as essential by most respondents. There was little consensus on which clinician should be responsible for specific physical examination maneuvers.ConclusionsWhile we identified specific physical examination maneuvers deemed by providers to be both necessary and feasible to perform in the context of primary care-based memory clinics, further research is needed to clarify interprofessional roles related to the examination.
Nación-frontera: Apuntes sobre la expansión de la frontera y algunas de sus implicaciones
Authors: Pástor Aguilar Marina , León Mendoza Raúl
Published: July 2018

Analizados los acontecimientos recientes en los fluujos migratorios hacia el interior del primer mundo, y en especial en la última década los movimientos hacia Europa, se considera en este trabajo que la frontera ha superado su categoría inicial de límite físico entre dos entidades político-administrativas diferenciadas. El presente trabajo es un rastreo del estatus actual de la frontera a través del que se alcanza a especular con las repercusiones que su extensión espacial y temporal está produciendo en el mundo contemporáneo. Si las fronteras, en su anterior estatus funcionaban como dispositivos biopolíticos, ejerciendo como límite de una soberanía con derecho a administrar la vida (cuya expresión extrema es el exterminio); los nuevos usos de la frontera dan pie a considerarlas dispositivos transpolíticos que hacen surgir una nueva categoría de sujeto al que no se desea administrar: personas-residuo cuya propia piel marca el confín del estado.