995 resultados para Hydrographic surveying


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It is of major concern to the Surveying profession that the seven years between 1994 and 2001, witnessed a decline in the numbers of UK student surveyors of nearly 50%. This was significant, especially when considered in the context of rising student numbers overall. Of equal concern, and set against the backdrop of a general move in education and the workplace to widen participation, was the reduction in applications from females, some 50% of the workforce. Furthermore demand for surveyors was high, and practices found it difficult to recruit graduate surveyors. The factors leading to low uptake in the profession were; low starting graduate salaries; lack of publicity and awareness of surveying as a career option, and a poor public image. The RICS decided to implement an education policy with the aim of increasing graduate quality. The policy adopted stated that 75% of each student cohort was to have an average of 17 A level points or 230 UCAS points for entry on undergraduate courses. These changes were introduced in UK Universities from September 2001. A number of Universities saw their professionally accredited courses withdrawn as the RICS imposed academic entry standards and research output based on the UK Government’s Research Assessment Exercise (RAE) criteria on which to base their ‘partnership’ relationships. Simultaneously there has been the development of post-graduate degree courses in surveying in the UK to attract noncognate degree holders into the profession on a fast track basis. The policy has generated a considerable amount of debate and very strong views within academia and also within the profession as to whether the policy was appropriate, and likely to succeed. It is now over 3 years since the policy was implemented and figures released by the RICS in 2003 indicated that surveying student numbers have increased by 17%, in all areas except Building Surveying where they fell by just under 25% to 445 in 2001. A number of questions arise. Why were Building Surveying courses failing to recruit students whereas other surveying courses have increased their numbers? If the figures continue to decline or remain at these low levels, what is the future for the BS? In short, could Building Surveying become an endangered profession? All university BS course leaders were approached by questionnaire and approximately half responded. The small amount of quantitative data collected, suggest that recruitment is static at a time when other built environment courses are recruiting well. Course leaders expressed strong views about the impact of the education reforms.

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According to George and Cowan (1999) student feedback is essential to enable lecturers to understand whether attempts to improve learning and educational experience lead to improvement. Current UK practice uses end of module questionnaires to feedback levels of satisfaction (Cowan, 2002). There are inherent weaknesses, namely that it seldom leads to a change for that particular cohort of students, secondly it relies on uncorroborated opinion, and may derive from superficial feedback from a minority of students with the remainder suffering from questionnaire fatigue. Finally the data may not be especially relevant to a particular module, a particular weakness (Heywood, 2000).

Using principles identified by Angelo and Cross (1993), this research adopted a methodology to formatively evaluate student perceptions and levels of satisfaction with the dissertation module. Using a cohort of Building Surveying students at Sheffield Hallam University, in England, views on course materials, the use of Blackboard software, the workshops and the relationships with supervisors were gathered and analysed.

A number of measures were identified as a result of this study, that may, if implemented, improve student learning. Examples are the use of checklists for student for each research / dissertation stage to ensure nothing is forgotten. Provision of additional ‘drop in’ workshops where students could see the module leader with specific issues. Additional optional workshops for questionnaire coding and review of previous theses for example.

It will not be possible to measure whether this student cohort’s learning and performance improves until the summer of 2003 and the final dissertations are assessed. A statistical analysis, comparing their dissertation marks against marks for other topics will show whether there is improvement in marks as a result of this student feedback study. The 2002/3 cohort result can also be analysed against previous cohorts to establish whether any improvement is evident.

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Building surveying is fragmenting into specialist areas that will in time displace the profession and contribute to its demise. For the profession to survive it must change and embrace these new areas as part of the building surveying family. The research identified 18 ingredients of successful professional bodies that the Australian Institute of Building Surveyors can use to position the organisation to accommodate these new areas and assist it to prosper and grow into an effective professional body.

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In this paper, I play with the metaphors of war and peace (with apologies to Leo Tolstoy) as a strategy for describing the relations between (some) social science researchers and human research ethics committees. Even a cursory survey of recent literature reveals a raft of grievances and grumblings amongst researchers about the operation and decisions of research ethics committees. This paper presents a partial survey from both sides of some of the claims that have triggered this unofficial declaration of war, and discusses the implications for ethical research. My central argument is that the truly ethical moment lies in mutual and constructive conversations and critique between ethics committees and researchers.

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Purpose – The purpose of this paper is to report further on research funded by the Centre for Education in the Built Environment (CEBE) into real estate programmes of study in UK universities (Poon and Hoxley). The aim of this paper is to identify human resource managers’ view on the employability skills of real estate graduates. It also compares the views on the employability skills of real estate graduates between human resource managers, a large sample of real estate employers and real estate course directors.

Design/methodology/approach –
This paper presents the research findings of eight interviews with human resource managers who work in different types of surveying firms. The approach for collecting their view of the employability skills required by real estate graduates was through gathering their opinions on three charts. These charts compare what employers feel graduates require and what they feel graduates demonstrate in 31 knowledge areas, 20 skills and 21 attributes, alongside a list of additional competencies made by graduates and employers which was developed as part of an earlier study.

Findings –
The human resource managers identified the key employability skills for real estate graduates as soft skills, in particular report writing skills, communication skills, presentation skills, client care and professional standards. The human resource managers of real estate consultancy firms also voiced their concern regarding graduates’ lack of commercial awareness, which echoed the same view from real estate employers and real estate course directors mentioned in the previous research (Poon, Hoxley and Fuchs). Therefore, it is necessary for universities to embed these soft skills, such as commercial awareness in the curriculum in order to enhance the employability of graduates.

Originality/value –
This paper makes an original contribution to existing literature on the identification and discussion of employability skills for real estate graduates. It describes pioneering research focusing on the human resource managers’ perspective of the real estate graduate employability skills.

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While there are many small-scale case studies that investigate specific teacher education practices, large scale longitudinal studies designed to provide rich and comprehensive data about the effectiveness of teacher education, are limited (Cochran-Smith & Zeichner, 2005). The Studying the Effectiveness of Teacher Education (SETE) project aims to address this gap by investigating the effectiveness of teacher education programs in preparing teachers for the variety of school settings in which they begin their careers. This three-year study utilises large-scale surveys and case studies, and includes a comprehensive mapping of teacher education programs across Australia. It tracks all 2010/2011 teacher education graduates in Queensland and Victoria to investigate the effectiveness of particular characteristics of their teacher education programs in equipping them with the capacity to meet the learning needs of young people in a diverse range of Australian school settings.

This paper presents the findings from the mapping exercise and the surveys of teachers and principals, and the problematics and possibilities of reading across the data sets. The SETE mapping exercise used publicly available online information to examine the characteristics of initial teacher education programs accredited by the Victorian Institute of Teaching (VIT) and the Queensland College of Teachers (QCT). Preliminary results address, inter alia, the length, content and delivery of programs and critical issues of the development of pedagogical and assessment expertise and preparation to teach in diverse contexts. The paper also presents findings from the first of a series of online surveys completed by teacher education graduates in Queensland and Victoria. Beginning teachers’ responses are mapped against key characteristics of participants' pre-service programs and framed in relation to the key themes of curriculum, pedagogy, assessment, behaviour management, and engagement with school stakeholders and local community.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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In the paper we discuss the potential of the new Galileo signals for pseudorange based surveying and mapping in open areas under optimal reception conditions (open sky scenarios) and suboptimal ones (multipath created by moderate to thick tree coverage). The paper reviews the main features of the Galileo E5 AltBOC and E1 CBOC signals; describes the simulation strategy, models and algorithms to generate realistic E5 and E1 pseudoranges with and without multipath sources; describes the ionosphere modeling strategy, models and algorithms and discusses and presents the expected positioning accuracy and precision results. According to the simulations performed, pseudoranges can be extracted from the Galileo E5 AltBOC signals with tracking errors (1-σ level) ranging from 0.02 m (open sky scenarios) to 0.08 m (tree covered scenarios) whereas for the Galileo E1 CBOC signals the tracking errors range between 0.25 m to 2.00 m respectively. With these tracking errors and with the explicit estimation of the ionosphere parameters, simulations indicate real-time open sky cm-level horizontal positioning precisions and dm-level vertical ones and dm-level accuracies for both the horizontal and vertical position components.

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In this paper we describe the development of a low-cost high-accuracy Galileo Code receiver, user application software and positioning algorithms for land management applications, which have been implemented using a dedicated FPGA board and dual frequency Galileo E5/L1 Radio Frequency Front-End. The current situation of rural property surveying in Brazil is described and the use of code measurements from the new Galileo signals E5 AltBOC combined with E1 MBOC for use in land management applications is explored. We explain how such approach is expected to allow delivering an absolute positioning solution which could bridge the gap between receivers of high cost/complexity/accuracy based on carrier phase and receivers of lower cost/accuracy based on pseudorange observables. The system is presented together with a detailed description of main components: the Code Receiver and the Application Software. The work presented is part of an ongoing European-Brazilian consortium effort to explore the use of new Galileo for land management applications in Brazil and sponsored by the GNSS Supervisory Authority (GSA).

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New Galileo signals have great potential for pseudorange-based surveying and mapping in both optimal open-sky conditions and suboptimal under-canopy environments. This article reviews the main features of Galileo's E5 AItBO( and El (BOC signals, describes generation of realistic E5 and El pseudoranges with and without multipath sources, and presents anticipated horizontal positioning accuracy results, ranging from 4 centimeters (open-sky) to 14 centimeters (under-canopy) for E5/El.

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The Constant Flux: Constant Sedimentation (CF:CS) and Constant Rate of Supply (CRS) of unsupported/excess Pb-210 models have been applied to a Pb-210 data set providing of eighteen sediments profiles sampled at four riverine systems occurring in Brazil, South America: Corumbatai River basin (S1=Site 1, Sao Paulo State), Atibaia River basin (S2=Site 2, Sao Paulo State), Ribeirao dos Bagres basin (S3=Site 3, Sao Paulo State) and Amazon River mouth. (S4=Site 4, Amapa State). These sites were chosen for a comparative evaluation of the performance of the CF:CS and CRS models due to their pronounced differences on the geographical location, geological context, soil composition, biodiversity, climate, rainfall, and water flow regime, among other variable aspects. However, all sediments cores exhibited a common denominator consisting on a database built from the use of the same techniques for acquiring the sediments major chemical composition (SiO2, Al2O3, Na2O, K2O, CaO, MgO, Fe2O3, MnO, P2O5, TiO2 and LOI-Loss on Ignition) and unsupported/excess 210Pb activity data. In terms of sedimentation rates, the performance of the CRS model was better than that of the CF:CS model as it yielded values more compatible with those expected from field evidences. Under the chronological point of view, the CRS model always provided ages within the permitted range of the Pb-210-method in the studied sites, whereas the CF:CS model predicted some values above 150 years. The SiO2 content decreased in accordance with the LOI increase in all cores analyzed and such inverse relationship was also tracked in the SiO2-LOI curves of historical trends. The SiO2-LOI concentration fluctuations in sites S1 and S3 also coincided with some Cu and Cr inputs in the drainage systems. (C) 2014 Elsevier Ltd. All rights reserved.

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Due to rapid and continuous deforestation, recent bird surveys in the Atlantic Forest are following rapid assessment programs to accumulate significant amounts of data during short periods of time. During this study, two surveying methods were used to evaluate which technique rapidly accumulated most species (> 90% of the estimated empirical value) at lowland Atlantic Forests in the state of São Paulo, southeastern Brazil. Birds were counted during the 2008-2010 breeding seasons using 10-minute point counts and 10-species lists. Overall, point counting detected as many species as lists (79 vs. 83, respectively), and 88 points (14.7 h) detected 90% of the estimated species richness. Forty-one lists were insufficient to detect 90% of all species. However, lists accumulated species faster in a shorter time period, probably due to the nature of the point count method in which species detected while moving between points are not considered. Rapid assessment programs in these forests will rapidly detect more species using 10-species lists. Both methods shared 63% of all forest species, but this may be due to spatial and temporal mismatch between samplings of each method.