bluuebunny/crossref_metadata_2025 huggingface dataset:
Psychological Intervention for Adolescents with Juvenile Idiopathic Arthritis: For Whom and When?
Authors: Fuchs Coralie Elisabeth , Van Geelen Stefan Matthijs , Hermans Hubertus Johannes Matthias , Van De Putte Elise Machteld , Van Geel Rolf , Sinnema Gerben , Kuis Wietse
Published: February 2013

Objective.

To study which adolescents with juvenile idiopathic arthritis (JIA) benefit from psychological intervention, and what is the best moment for it.

Methods.

In 3 months, 28 adolescents with JIA and 14 healthy adolescents as a control group received psychological intervention with the Self-confrontation Method (SCM), which combines the personal narrative with its affective structure. The adolescents with JIA were split into groups with low health-related quality of life (HRQOL) and high HRQOL. The Child Health Questionnaire, Checklist Individual Strength, and Childhood Health Assessment Questionnaire were used to measure fatigue and physical and psychosocial functioning at baseline, and at 3 months and 9 months after baseline.

Results.

Adolescents with JIA and low HRQOL at baseline reported less fatigue and better HRQOL after psychological intervention. These changes could not be explained by changes in disease activity. Low HRQOL at baseline was associated with a more recent onset of JIA, higher levels of pain, more severe physical disability, and higher levels of fatigue.

Conclusion.

Two-thirds of adolescents with JIA function well before and after psychological intervention. One-third of adolescents with JIA reporting low HRQOL at baseline benefit from guided self-reflections and should be the focus of psychological intervention. The most effective moment for this psychological intervention is when the adolescent reports difficulties in HRQOL.
Figures et fonctions de la mort en corse : un monde en mouvement
Authors: Hurstel Françoise
Published: February 2013

Résumé À partir principalement de deux enquêtes (1960-1975) et (2002-2010) menées en Corse, sur les rêves prémonitoires (« sogni ») et les visions (« finzioni »), je présente les caractéristiques du « monde des morts » et les personnages qui le peuplent, leurs rapports avec les vivants et leurs fonctions, en organisant ces données de l’imaginaire corse autours de trois questions : Quelles sont les figures de la mort et des morts ? Quelles en sont les fonctions pour les vivants ? Ce monde de la mort est-il immuable ou se présente-t-il comme un monde en mouvement lorsque l’on compare les données des entretiens des années 1960 à celles recueillies dans les années 2000 ?
La mort et les morts dans le roman policier
Authors: Thilliez Franck
Published: February 2013

Résumé Nous avons tous, un jour ou l’autre, ouvert un roman policier, que ce soit dans le cadre scolaire ou pour notre plaisir personnel. Dans ce genre littéraire, la mort est souvent placée comme le centre même de l’intrigue, celle par qui l’enquête débute et la traque du criminel commence. Le « mort », qui apparaît la plupart du temps dès les premières pages, revêt alors différentes identités, suivant la relation qu’il entretient avec les multiples personnages du livre : « victime » pour les policiers, « cadavre » pour l’identité judiciaire, « sujet » pour le légiste, « proche » pour la famille ou les amis...Pourtant figé, il donne l’impression de continuer à évoluer, voire même de revenir à la vie, et semble tenir une place à part entière dans le récit. Le mort a-t-il toujours une place prépondérante dans le roman policier ? Comment évolue-t-il au fil d’une enquête policière ? Quelle relation l’auteur entretient-il avec ce personnage très particulier ? L’écriture change-t-elle le rapport de l’écrivain à la mort ?
Les morts judiciaires – le rôle de la Médecine Légale
Authors: Schuliar Yves
Published: February 2013

Résumé Branche importante de la médecine légale, la thanatologie est en pleine évolution depuis quelques années. Classiquement, elle concernait la levée de corps et l’autopsie. Désormais, il s’agit d’une discipline transversale voire multidisciplinaire et le médecin légiste doit avoir des connaissances dans de nombreuses disciplines et doit faire appel à de multiples spécialistes pour lui permettre d’établir les causes et les circonstances du décès d’un individu. Le médecin légiste est amené à jouer un rôle de plus en plus important de coordination et de synthèse au profit du magistrat et de l’enquêteur. Après un rappel concernant les textes relatifs au traitement judiciaire des décès, les différents aspects de la médecine légale thanatologique seront détaillés. Un chapitre sera consacré aux particularités du travail d’identification de victimes de catastrophes.
L'aspiration au travail bien fait
Authors: Clot Yves
Published: February 2013

Résumé Le stress apparaît lorsque l’organisation n’a pas les moyens de faire face à l’exigence des salariés d’effectuer un travail de qualité, et il convient d’instituer une controverse sur les multiples critères de qualité, sources de conflits et de dilemmes.
Crise et rejet de la greffe Toyota à Valenciennes ?
Authors: Pardi Tommaso
Published: February 2013

Résumé Depuis le début, Toyota à Valenciennes souffre d’une crise du travail surprenante et d’un turnover important. Cela montre que le système de production Toyota dysfonctionne lorsqu’il est mis en œuvre en dehors du contexte singulier qui le rend viable.
Comme des poissons dans l'eau
Authors: Di Vittorio Pierangelo
Published: February 2013

Résumé Les ancêtres de la téléréalité, comme l’émission américaine Candid Camera, ont su très tôt mobiliser un charisme de la réalité qui magnétise aujourd’hui un nombre croissant de nos contemporains. Ces pratiques télévisuelles se sont développées en étroite interaction avec les expérimentations faites sur la psychologie sociale et l’hypnose, révélant une convergence entre sciences, technologies médiatiques et mécanismes de pouvoir que cet article s’efforce de faire apparaître dans ses dimensions à la fois historique et théorique.
Métaphysique du Joker
Authors: Quinzel Harleen
Published: February 2013

Résumé Lorsque James Holmes, le tueur d’Aurora, affirme au moment de son arrestation « Je suis le Joker », en référence au dernier film mettant en scène Batman, il illustre l’une des actualisations possibles du virtuel qui peuple nos espaces médiatiques. On restera démuni face de tels passages à l’acte, de même que face aux médias eux-mêmes, tant qu’on ne comprendra pas mieux quelle est la nature de ce virtuel qu’ils font advenir à l’être.
Anthony Braxton, méta-réaliste
Authors: Pierrepont Alexandre
Published: February 2013

Résumé Le multi-instrumentaliste et compositeur Anthony Braxton a progressivement mis en place un système musical rejetant la pensée binaire et les dichotomies, et cela en trois stades successifs : une étape architecturale, une étape philosophique et une étape rituelle et cérémonielle. Cette dernière intègre les précédentes dans un ensemble mythologique en perpétuelle construction, de l’ordre d’une « méta-réalité ». Elle fait du musicien un storyteller ésotérique au service d’une utopie sonore, de laquelle émane le désir d’un autre monde possible, à travers l’exploration d’une multitude de logiques, de structures et de cultures s’interpénétrant.
« We come in peace »
Authors: Claisse Frédéric
Published: February 2013

Résumé Apparus dans le contexte idéologique de la Yougoslavie finissante, le groupe slovène de musique industrielle Laibach et son organisation faîtière, le Neue Slowenische Kunst (NSK), ont contribué à renouveler la grammaire de la contestation, à travers le principe de « rétrogardisme » et la technique de suridentification aux codes esthétiques du pouvoir. L’article revient sur la trajectoire du groupe, dont il démonte les stratégies en insistant sur la dimension systématiquement ironique de son mode d’énonciation, notamment de son art de la reprise.
Sécurité alimentaire et responsabilité sociale des entreprises
Authors: Teller Marina
Published: February 2013

Résumé La sécurité alimentaire est devenue un thème de communication chez certaines entreprises qui l’ont intégrée au discours général relatif à la responsabilité sociale des entreprises (ci-après RSE). La sécurité alimentaire est-elle du ressort de l’entreprise privée ? Quelles en sont les modalités et est-ce une voie d’avenir pour cet enjeu aussi décisif que complexe ? Ces questions révèlent l’ambivalence des acteurs privés qui peuvent proposer des initiatives intéressantes en la matière, mais qui campent encore sur une conception actionnariale du profit. Parce que la richesse privée est rarement redistribuée dans la perspective d’une meilleure sécurité alimentaire, il sera intéressant d’observer les pratiques mises en œuvre par quelques acteurs du secteur bancaire et industriel afin d’apprécier l’efficacité des démarches de RSE. Cette observation des pratiques suscite certaines réserves, voire des réserves certaines. L’initiative privée ne peut venir qu’en appui d’une démarche des États et elle ne saurait occulter la nécessité d’une régulation juridique de la sécurité alimentaire.
Impact of a Standardized Test Package on Exit Examination Scores and NCLEX-RN Outcomes
Authors: Homard Catherine M.
Published: February 2013

The purpose of this ex post facto correlational study was to compare exit examination scores and NCLEX-RN
®
pass rates of baccalaureate nursing students who differed in level of participation in a standardized test package. Three cohort groups emerged as a standardized test package was introduced: (a) students who did not participate in a standardized test package; (b) students with two semesters of a standardized test package; and (c) students with four semesters of a standardized test package. Benner’s novice-to-expert theory framed the study in the belief that students best acquire knowledge and skills through practice and reflection. Students participating in four semesters of a standardized test package demonstrated higher exit examination scores and NCLEX-RN pass rates compared with students who did not participate in this package. This study’s results could inform nurse educators about strategies to facilitate nursing student success on exit examinations and the NCLEX-RN.
An Exploratory Study of Trolling in Online Video Gaming
Authors: Thacker Scott , Griffiths Mark D.
Published: February 2013

Despite the increased incidence of trolling within online gaming environments, very little psychological research has been conducted beyond the fact that it exists. The main aims of the study were to examine the: (i) frequency of trolling, (ii) type and reasons for trolling, and (iii) the effects trolling may have on self-esteem. Using an online survey, a self-selected sample of 125 gamers participated in the study. Results showed that trolls tended to play longer gaming sessions. Frequent trolls were significantly younger and male. Types of trolling included griefing, sexism/racism, and faking/intentional fallacy. Reasons for trolling included amusement, boredom, and revenge. Witnessing trolling was positively associated with self-esteem, whereas experiencing trolling was negatively associated. Experience of trolling was positively correlated with frequency of trolling. Although the study used a self-selecting sample, the results appear to provide a tentative benchmark into video game trolling and its potential effects on self-esteem.
Heart Sounds Human Identification and Verification Approaches using Vector Quantization and Gaussian Mixture Models
Authors: Ghali Neveen I. , Wahid Rasha , Hassanien Aboul Ella
Published: February 2013

In this paper the possibility of using the human heart sounds as a human print is investigated. To evaluate the performance and the uniqueness of the proposed approach, tests using a high resolution auscultation digital stethoscope are done for nearly 80 heart sound samples. The verification approach consists of a robust feature extraction with a specified configuration in conjunction with Gaussian mixture modeling. The similarity of two samples is estimated by measuring the difference between their negative log-likelihood similarities of the features. The experimental results obtained show that the overall accuracy offered by the employed Gaussian mixture modeling reach up to 85%. The identification approach consists of a robust feature extraction with a specified configuration in conjunction with LBG-VQ. The experimental results obtained show that the overall accuracy offered by the employed LBG-VQ reach up to 88.7%.
Matching Supply and Demand on Agricultural Market in Romania
Authors: Andreea Ion Raluca
Published: February 2013

This paper identifies the relationships among different components of supply and demand on the market of agricultural and food products in Romania. Statistical data regarding the levels of production, internal availabilities for consumption, exports, and imports have been analyzed. The hypothesis whether domestic agricultural output satisfy demand has been verified and the results show that, in order to satisfy demand, imports supplement internal production of agro-food products. The share of imports varies from 4.5% for potatoes to 85% for fish and fish products. Trade balances are negative for all agricultural products, except cereals. These findings have significant implications for the work of policy makers and businesses, as it calls for changing the strategies and practices in this area.
Specifics of the Assessment of the Market Value of Various Categories of Pigs on Farms in Serbia
Authors: Subic Jonel , Jelocnik Marko , Njegovan Zoran
Published: February 2013

Business entities from the field of agriculture oriented to livestock production, in daily activities, during the decision making process, may find in situation that in relatively short period of time must assess the value of assets they have on disposal. Assessment can be very complex, like in the case of estimation of breeding herd value, considering that this is an assessment of the living (biological) organisms whose characteristics and value change during the period of use and nurture. On the example of pig farm Ramski rit Veliko Gradište, which is part of the Company Asprom doo. Vrcin, is described a possible method for quick and realistic assessment of the heads within all categories of pigs on the farm. According to data availability, for pigs was applied assessment method based on their (fair) market value, or method that determines amount of money based on what assets can change owner, where none of the interested parties are not forced and previously was introduced with all relevant facts of a potential sale.
The Uterati
Authors: Dark Kimberly
Published: February 2013

The Uterati is a 25 minute solo performance script that emerged from an autoethnographic writing process during the time of the authors’ diagnosis and subsequent hysterectomy for uterine fibroid tumors. The script is at once comedic and political as it portrays specific aspects of their autoethnographic research on the body and healthcare, including: (1) Who decides the usefulness of a body part; (2) “Fidelity” to relationship norms and to oneself; and (3) Confrontation with the possibility of death as one delays medical care in order to weigh options.
An Unusual Association of Lung and Ovarian Malignancy in a Young Nonsmoker Female
Authors: Dasgupta Sujoy
Published: February 2013

Lung cancer in a 25-year-old nonsmoker female is extremely rare. Ovarian malignancy in this age group is also infrequent and if occurs, is usually of germ cell type. If a patient presents with both lung and ovarian mass, the initial impression is the metastasis from one organ to the other. Chest X-ray, ultrasonogram, whole abdomen, CT scan of thorax and abdomen, bronchoscopic biopsy of lung mass and excision biopsy of ovarian mass are all needed to accurately diagnose condition. Therapy is also challenging for such patients. After accurate diagnosis for both the organs, surgery, chemotherapy, or radiotherapy should be considered after individualization of the case. Squamous cell carcinoma lung in advanced stage associated with early stage ovarian serous cystadenocarcinoma has not been described in literature. The rarity of the case, absence of cigarette smoking or radiation exposure, negative family history, unusual association and fatality of the cases prompted us to report this case.
An MMSE Overlay Cognitive Wireless System
Authors: Vameghestahbanati Monirosharieh , Mir Hasan S. , El-Tarhuni Mohamed
Published: February 2013

In this paper, the authors propose a framework that allows an overlay (new) system to operate simultaneously with a legacy (existing) system. By jointly optimizing the transmitter and the receiver filters of the overlay system, the sum of the mean-squared error (MSE) of the new system plus the excess MSE in the existing system due to the introduction of the overlay system is minimized. The effects of varying key parameters such as the overlay transmitter power and the amount of overlap between the legacy and the overlay systems are investigated. Furthermore, the sensitivity of the system to accuracy of signal-to-noise ratio (SNR) estimate and the channel estimate is also examined.
Exploring the Factors that Affect Intention to use Mobile Phones in Jordanian Academic Library
Authors: Jaradat Mohammed-Issa Riad Mousa
Published: February 2013

This study presents an extended technology acceptance model (TAM) to explore the factors that affect intention to accept and use mobile phones in Jordanian academic library. This study explores the utilization of mobile phones in an educational environment and investigates students’ expectations and intention toward mobile library services. The proposed model was empirically tested using data collected from a survey containing 23 questions. Results show that user acceptance and use of mobile library services can be predicted from the users’ behavioral intentions, which are affected significantly by social influence, perceived ease of use, and perceived usefulness. It has been found that a direct effect exists between behavioral intention and actual use toward accepting and using mobile library services in Jordan with 85.1% of students respondents’. This study also gives quantified indicators and a model that might help in understanding the mobile library environment in Jordan.
The Role of Leadership and Technology in Successful and Sustainable Airline Management
Authors: Burckhardt Oliver H. , Hargiss Kathleen M. , Howard Caroline
Published: February 2013

A study about the role of leadership and technology in successful and sustainable airline management was conducted to further the knowledge concerning the effects these factors have on the sustainability of airline business. The goal of the study was to identify suitable leadership approaches, core and enabling technologies that are of importance for airline executives in the context of the global nature of the industry and its challenging, competitive environment. Conducting interviews with former executives from Continental Airlines and Lufthansa German Airlines and with C-level managers from airlines unaffiliated with these carriers provided insights concerning adequate methods to lead airlines that experience operational, organizational, or financial crises. One of the findings of the study, which was conducted by evaluating successful crisis management programs of Lufthansa and Continental Airlines, is the need to integrate both core and enabling technologies with a leadership approach that allows organizations to outperform their competitors and, more importantly, maintain their leading position.
Case Study
Authors: Heikkinen Teuvo
Published: February 2013

The paper discusses the new aspects of services and product lifecycle management could bring to the manufacturing company presented in this paper as a case study. The paper starts with a literature review and continues on to the case study. In the discussion section the findings are presented, following a conclusion section, where plausible miniature scenarios for circling the problems found earlier are presented. The service orientation is discussed through product lifecycle management aspect. The main topics discuss about the practical problems that came forth during the research. Many of those could have been avoided if the possibility of service orientation had been taken into account earlier. Companies need to seek new ways for creating profit and differentiate among the competition. Differentiating through services is seen as a favorable decision, although the implementation might not be as straightforward. Adding services to a core product creates more opportunities for a customer, but also enhances the company´s position in the markets. The goal of this research is to give insight to the challenges that a modern manufacturing company faces when in transition. Practical problems, intra- and extra-company are presented with discussion, results and suggested outcome.
Content Analysis of Wiki Discussions for Knowledge Construction
Authors: Buraphadeja Vasa , Kumar Swapna
Published: February 2013

Research on several aspects of asynchronous online discussions in online and hybrid courses has been successfully conducted using content analysis in the past. With the increase in Web 2.0 and social media use in education, research on knowledge construction within newer virtual environments like blogs or wikis is just emerging. This study applies a well-known model of content analysis for knowledge construction to an educational wiki environment. Twelve graduate students’ contributions to a wiki in a 14-week on-campus course on Web 2.0 technologies in education are analyzed. Results indicate that the wiki platform fosters collaborative knowledge construction and that is necessary to develop new frameworks to analyze content in new learning environments. Wiki environments provide opportunities for researchers to capture the process of collaboration, knowledge construction, and meta-cognition.
Software Requirements Management through the Lenses of People, Organizational and Technological Dimensions
Authors: Belfo Fernando Paulo
Published: February 2013

The inadequate specification of requirements remains being indicated as one of the main reasons for the failure of software development projects. A possible explanation for this failure is that requirements management tends to overvalue the technology side of requirements. However, the requirements management depends on other important issues beyond technology which are sometimes neglected. Good requirements are only assured by the right balance of three dimensions: people, organization and technology. Through the lens of each of these three dimensions, this paper reviews significant literature, identifying some of the key issues and concerns about the management of software requirements, particularly the software requirements specification. Major software quality attributes, like clearness, completeness, correctness, understandability, verifiability or validity, consistency and feasibility, are used to analyse several important facets of software requirements management. Implications for future research are discussed.
Cloud computing for radiologists
Authors: Kharat Amit T , Safvi Amjad , Thind S S , Singh Amarjit
Published: February 2013

Cloud computing is a concept wherein a computer grid is created using the Internet with the sole purpose of utilizing shared resources such as computer software, hardware, on a pay-per-use model. Using Cloud computing, radiology users can efficiently manage multimodality imaging units by using the latest software and hardware without paying huge upfront costs. Cloud computing systems usually work on public, private, hybrid, or community models. Using the various components of a Cloud, such as applications, client, infrastructure, storage, services, and processing power, Cloud computing can help imaging units rapidly scale and descale operations and avoid huge spending on maintenance of costly applications and storage. Cloud computing allows flexibility in imaging. It sets free radiology from the confines of a hospital and creates a virtual mobile office. The downsides to Cloud computing involve security and privacy issues which need to be addressed to ensure the success of Cloud computing in the future.
Contrast injected, scan triggered, but where has contrast gone?
Authors: Gupta Pankaj , Gulati Gupreet Singh , Guleria Munish
Published: February 2013

Intra-arterial injections during CT scan examinations are a rare occurrence in day-to-day radiology practice but are of potential significance when they do occur. They render an imaging study non-diagnostic, and for imaging techniques like CT scan, expose patient to undue radiation dose. Equally disturbing for both patient and clinicians, including radiologists, is the need for repeat imaging. For certain emergency indications, such an event may yield erroneous results and severely hamper patient′s management. We report one such event that occurred in our cardiac CT scan section with the aim to raise awareness about such events among our colleagues.
Simulations of column-averaged CO2 and CH4 using the NIES TM with a hybrid sigma-isentropic (σ-θ) vertical coordinate
Authors: Belikov D. A. , Maksyutov S. , Sherlock V. , Aoki S. , Deutscher N. M. , Dohe S. , Griffith D. , Kyro E. , Morino I. , Nakazawa T. , Notholt J. , Rettinger M. , Schneider M. , Sussmann R. , Toon G. C. , Wennberg P. O. , Wunch D.
Published: February 2013

Abstract. We have developed an improved version of the National Institute for Environmental Studies (NIES) three-dimensional chemical transport model (TM) designed for accurate tracer transport simulations in the stratosphere, using a hybrid sigma-isentropic (σ-θ) vertical coordinate that employs both terrain-following and isentropic parts switched smoothly around the tropopause. The air-ascending rate was derived from the effective heating rate and was used to simulate vertical motion in the isentropic part of the grid (above level 350 K), which was adjusted to fit to the observed age of the air in the stratosphere. Multi-annual simulations were conducted using the NIES TM to evaluate vertical profiles and dry-air column-averaged mole fractions of CO2 and CH4. Comparisons with balloon-borne observations over Sanriku (Japan) in 2000–2007 revealed that the tracer transport simulations in the upper troposphere and lower stratosphere are performed with accuracies of ~5% for CH4 and SF6, and ~1% for CO2 compared with the observed volume-mixing ratios. The simulated column-averaged dry air mole fractions of atmospheric carbon dioxide (XCO2) and methane (XCH4) were evaluated against daily ground-based high-resolution Fourier Transform Spectrometer (FTS) observations measured at twelve sites of the Total Carbon Column Observing Network (TCCON) (Bialystok, Bremen, Darwin, Garmisch, Izaña, Lamont, Lauder, Orleans, Park Falls, Sodankylä, Tsukuba, and Wollongong) between January 2009 and January 2011. The comparison shows the model's ability to reproduce the site-dependent seasonal cycles as observed by TCCON, with correlation coefficients typically on the order 0.8–0.9 and 0.4–0.8 for XCO2 and XCH4, respectively, and mean model biases of ±0.2% and ±0.5%, excluding Sodankylä, where strong biases are found. The ability of the model to capture the tracer total column mole fractions is strongly dependent on the model's ability to reproduce seasonal variations in tracer concentrations in the planetary boundary layer (PBL). We found a marked difference in the model's ability to reproduce near-surface concentrations at sites located some distance from multiple emission sources and where high emissions play a notable role in the tracer's budget. Comparisons with aircraft observations over Surgut (West Siberia), in an area with high emissions of methane from wetlands, show contrasting model performance in the PBL and in the free troposphere. Thus, the PBL is another critical region for simulating the tracer total column mole fractions.
Impact of modelled particle characteristics on emissions inferred by inversion of tracer transport
Authors: Burrows S. M. , Rayner P. J. , Butler T. , Lawrence M. G.
Published: February 2013

Abstract. Model-simulated transport of atmospheric trace components can be combined with observed concentrations to obtain estimates of ground-based sources using various inversion techniques. These approaches have been applied in the past primarily to obtain source estimates for long-lived trace gases such as CO2. We consider the application of similar techniques to source estimation for atmospheric aerosols, using as a case study the estimation of bacteria emissions from different ecosystem regions in the global atmospheric chemistry and climate model ECHAM5/MESSy-Atmospheric Chemistry (EMAC). Source estimation via Monte Carlo Markov Chain is applied to a suite of sensitivity simulations and the global mean emissions are estimated. We present an analysis of the uncertainties in the global mean emissions, and a partitioning of the uncertainties that are attributable to particle size, activity as cloud condensation nuclei (CCN), the ice nucleation scavenging ratios for mixed-phase and cold clouds, and measurement error. Uncertainty due to CCN activity or to a 1 μm error in particle size is typically between 10% and 40% of the uncertainty due to observation uncertainty, as measured by the 5%-ile to 95%-ile range of the Monte Carlo ensemble. Uncertainty attributable to the ice nucleation scavenging ratio in mixed-phase clouds is as high as 10% to 20% of that attributable to observation uncertainty. Taken together, the four model parameters examined contribute about half as much to the uncertainty in the estimated emissions as do the observations. This was a surprisingly large contribution from model uncertainty in light of the substantial observation uncertainty, which ranges from 81% to 870% of the mean for each of ten ecosystems for this case study. The effects of these and other model parameters in contributing to the uncertainties in the transport of atmospheric aerosol particles should be treated explicitly and systematically in both forward and inverse modelling studies.
Validation of MIPAS-ENVISAT H2O operational data collected between July 2002 and March 2004
Authors: Wetzel G. , Oelhaf H. , Berthet G. , Bracher A. , Cornacchia C. , Feist D. G. , Fischer H. , Fix A. , Iarlori M. , Kleinert A. , Lengel A. , Milz M. , Mona L. , Müller S. C. , Ovarlez J. , Pappalardo G. , Piccolo C. , Raspollini P. , Renard J.-B. , Rizi V. , Rohs S. , Schiller C. , Stiller G. , Weber M. , Zhang G.
Published: February 2013

Abstract. Water vapour (H2O) is one of the operationally retrieved key species of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument aboard the environmental satellite ENVISAT which was launched into its sun-synchronous orbit on 1 March 2002 and operated until April 2012. Within the MIPAS validation activities, independent observations from balloons, aircraft, satellites, and ground-based stations have been compared to European Space Agency (ESA) version 4.61 operational H2O data comprising the time period from July 2002 until March 2004 where MIPAS measured with full spectral resolution. No significant bias in the MIPAS H2O data is obvious in the lower stratosphere (above the hygropause) between about 15 and 30 km. Differences of H2O quantities observed by MIPAS and the validation instruments are mostly well within the combined total errors in this altitude region. In the upper stratosphere (above about 30 km), a tendency towards a small positive bias (up to 10%) is present in the MIPAS data when compared to its balloon-borne counterpart MIPAS-B, to the satellite instruments HALOE (Halogen Occultation Experiment) and ACE-FTS (Atmospheric Chemistry Experiment, Fourier Transform Spectrometer), and to the MM-wave airborne sensor AMSOS (Airborne Microwave Stratospheric Observing System). In the mesosphere the situation is unclear due to the occurrence of different biases when comparing HALOE and ACE-FTS data. Pronounced deviations between MIPAS and the correlative instruments occur in the lowermost stratosphere and upper troposphere, a region where retrievals of H2O are most challenging. Altogether it can be concluded that MIPAS H2O profiles yield valuable information on the vertical distribution of H2O in the stratosphere with an overall accuracy of about 10 to 30% and a precision of typically 5 to 15% – well within the predicted error budget, proving that these global and continuous data are very valuable for scientific studies. However, in the region around the tropopause retrieved MIPAS H2O profiles are less reliable, suffering from a number of obstacles such as retrieval boundary and cloud effects, sharp vertical discontinuities, and frequent horizontal gradients in both temperature and H2O volume mixing ratio (VMR). Some profiles are characterized by retrieval instabilities.
Case study of stratospheric gravity waves of convective origin over Arctic Scandinavia – VHF radar observations and numerical modelling
Authors: Réchou A. , Arnault J. , Dalin P. , Kirkwood S.
Published: February 2013

Abstract. Orography is a well-known source of gravity and inertia-gravity waves in the atmosphere. Other sources, such as convection, are also known to be potentially important but the large amplitude of orographic waves over Scandinavia has generally precluded the possibility to study such other sources experimentally in this region. In order to better understand the origin of stratospheric gravity waves observed by the VHF radar ESRAD (Esrange MST radar) over Kiruna, in Arctic Sweden (67.88° N, 21.10° E), observations have been compared to simulations made using the Weather Research and Forecasting model (WRF) with and without the effects of orography and clouds. This case study concerns gravity waves observed from 00:00 UTC on 18 February to 12:00 UTC on 20 February 2007. We focus on the wave signatures in the static stability field and vertical wind deduced from the simulations and from the observations as these are the parameters which are provided by the observations with the best height coverage. As is common at this site, orographic gravity waves were produced over the Scandinavian mountains and observed by the radar. However, at the same time, southward propagation of fronts in the Barents Sea created short-period waves which propagated into the stratosphere and were transported, embedded in the cyclonic winds, over the radar site.
Microphytobenthos and benthic macroalgae determine sediment organic matter composition in shallow photic sediments
Authors: Hardison A. K. , Canuel E. A. , Anderson I. C. , Tobias C. R. , Veuger B. , Waters M.
Published: February 2013

Abstract. Benthic macroalgae are a common symptom of eutrophication in shallow coastal bays as a result of increased nutrient loads. Microphytobenthos (MPB) and benthic macroalgae play an important role in system metabolism within shallow coastal bays. However, their independent and interactive influences on sediment organic matter (SOM) are not well understood. We investigated the influence of macroalgae and MPB on SOM quantity and quality in an experimental mesocosm system using bulk and molecular level (total hydrolyzable amino acids, THAA; phospholipid linked fatty acids, PLFA; pigment) analyses. Our experiment used an incomplete factorial design made up of two factors, each with two levels: (1) light (ambient vs. dark) and (2) macroalgae (presence vs. absence of live macroalgae). Over the course of the 42-day experiment, total organic carbon (TOC) and total nitrogen (TN) increased under ambient light by 173 ± 14 and 141 ± 7%, respectively, compared to in the dark (78 ± 29 and 39 ± 22%). THAA comprised a substantial fraction of SOM (∼16% of TOC, 35% of TN) and followed TOC and TN accumulation patterns. Mole percent composition of the THAA pool indicated that SOM was composed of more labile organic material (e.g. L-glutamic acid, phenylalanine) under ambient light conditions while SOM in dark treatments was more degraded, with higher proportions of glycine and D-alanine. PLFA content, which represents viable biomass, made up ∼1% of TOC and contained high levels of algal fatty acids in the light, particularly PLFA derived from diatoms. In the presence of MPB (i.e. light and macroalgae treatments), SOM lability increased, resulting in the observed increases in bacterial PLFA concentrations. Macroalgae, which were added to half of the light treatments, decreased SOM accumulation compared to light treatments without macroalgae, with TOC and TN increasing by only 130 ± 32 and 94 ± 24 %, respectively. This decrease likely resulted from shading by macroalgae, which reduced production of MPB. The presence of macroalgae decreased SOM lability as well, which resulted in diminished buildup of bacterial biomass. By the final day of the experiment, PCA analyses revealed that sediment composition in treatments with macroalgae were more similar to dark treatments and less similar to light treatments without macroalgae. Overall MPB and benthic macroalgae fundamentally altered SOM quality and quantity, which may have notable ecological consequences for shallow-water systems such as increased hypoxia/anoxia, sulfide accumulation, enhanced mineralization and/or stimulated denitrification.
The Irish famine of 1740–1741: causes and effects
Authors: Engler S. , Luterbacher J. , Mauelshagen F. , Werner J.
Published: February 2013

Abstract. This paper advances the current debate on causes and effects of famines. Since Sen's food entitlement decline theory emerged in the 1980's, climate and environmental factors are widely excluded in famine analysis. Studying the causation and the processes of famines as well as the adaptations to it before the 20th century will enhance modern famine theories and lead to a rethinking of the role of climate/environmental aspects in current research. In our case study, the "Famine Vulnerability Analysis Model" (FVAM) serves as an explanatory model and will open up new perspectives on famines. Special emphasis will be put on the Europe-wide crises of 1740–1741, with a focus on the famine of the "great frost" in Ireland. The interaction of demographic, political, economic and environmental aspects is characteristic in this famine.
REVIEW OF THE "AS-BUILT BIM" APPROACHES
Authors: Hichri N. , Stefani C. , De Luca L. , Veron P.
Published: February 2013

Abstract. Today, we need 3D models of heritage buildings in order to handle more efficiently projects of restoration, documentation and maintenance. In this context, developing a performing approach, based on a first phase of building survey, is a necessary step in order to build a semantically enriched digital model. For this purpose, the Building Information Modeling is an efficient tool for storing and exchanging knowledge about buildings. In order to create such a model, there are three fundamental steps: acquisition, segmentation and modeling. For these reasons, it is essential to understand and analyze this entire chain that leads to a well- structured and enriched 3D digital model. This paper proposes a survey and an analysis of the existing approaches on these topics and tries to define a new approach of semantic structuring taking into account the complexity of this chain.
AUTONOMOUS AIRSHIP EQUIPPED BY MULTI-SENSOR MAPPING PLATFORM
Authors: Jon J. , Koska B. , Pospíšil J.
Published: February 2013

Abstract. The aim of the project is to create measuring system with specific properties suitable for effective mapping of medium-wide areas (units to tens of square kilometers). The system should be useful especially for ranges that are too large for conventional surveying with GNSS or total station and too small for use of manned air vehicles from economical and accuracy point of view. Accessories of the system will allow e.g. collecting data for urban area modeling, creating thermometric georeferenced maps, mapping of dangerous or inaccessible areas (damps, open-pit mines). For this reason the platform is equipped with laser scanner, VIS camera (one for vertical capturing or more for slope capturing), thermo camera and INS/GPS as an exterior orientation (pose) determination unit. Especially in task of urban modeling the airship, as carrier, have legislative advantages due to prepared restriction for UAV. The resulting absolute accuracy of the developed system should be better than 10 cm (position standard deviation) and the random component is less than 5 cm. This accuracy is lower than for conventional measurements, but significantly higher than the scanning system carried by piloted aircraft. In terms of properties (accuracy, speed of data collection) our system is close to the terrestrial mobile scanning systems, which has disadvantage in the lack of availability in hard to reach locations.
THE COMBINATION OF LASER SCANNING AND STRUCTURE FROM MOTION TECHNOLOGY FOR CREATION OF ACCURATE EXTERIOR AND INTERIOR ORTHOPHOTOS OF ST. NICHOLAS BAROQUE CHURCH
Authors: Koska B. , Křemen T.
Published: February 2013

Abstract. Terrestrial laser scanning technology is used for creation of building documentation and 3D building model from its emerging at the turn of the millennium. Photogrammetry has even longer tradition in this field. Both technologies have some technical limitations if they are used for creation of a façade or even an interior orthophoto, but combination of both technologies seems profitable. Laser scanning can be used for creation of an accurate 3D model and photogrammetry for consequent application of high quality colour information. Both technologies were used in synergy to create the building plans, 2D drawing documentation of facades and interior views and the orthophotos of St. Nicholas Baroque church in Prague. The case study is described in details in the paper.
THE ADVANTAGES OF PARAMETRIC MODELING FOR THE RECONSTRUCTION OF HISTORIC BUILDINGS. THE EXAMPLE OF THE IN WAR DESTROYED CHURCH OF ST. CATHERINE (KATHARINENKIRCHE) IN NUREMBERG
Authors: Ludwig M. , Herbst G. , Rieke-Zapp D. , Rosenbauer R. , Rutishauser S. , Zellweger A.
Published: February 2013

Abstract. Consecrated in 1297 as the monastery church of the four years earlier founded St. Catherine’s monastery, the Gothic Church of St. Catherine was largely destroyed in a devastating bombing raid on January 2nd 1945. To counteract the process of disintegration, the departments of geo-information and lower monument protection authority of the City of Nuremburg decided to getting done a three dimensional building model of the Church of St. Catherine’s. A heterogeneous set of data was used for preparation of a parametric architectural model. In effect the modeling of historic buildings can profit from the so called BIM method (Building Information Modeling), as the necessary structuring of the basic data renders it into very sustainable information. The resulting model is perfectly suited to deliver a vivid impression of the interior and exterior of this former mendicant orders’ church to present observers.
3D MODEL VISUALIZATION ENHANCEMENTS IN REAL-TIME GAME ENGINES
Authors: Merlo A. , Sánchez Belenguer C. , Vendrell Vidal E. , Fantini F. , Aliperta A.
Published: February 2013

Abstract. This paper describes two procedures used to disseminate tangible cultural heritage through real-time 3D simulations providing accurate-scientific representations. The main idea is to create simple geometries (with low-poly count) and apply two different texture maps to them: a normal map and a displacement map. There are two ways to achieve models that fit with normal or displacement maps: with the former (normal maps), the number of polygons in the reality-based model may be dramatically reduced by decimation algorithms and then normals may be calculated by rendering them to texture solutions (baking). With the latter, a LOD model is needed; its topology has to be quad-dominant for it to be converted to a good quality subdivision surface (with consistent tangency and curvature all over). The subdivision surface is constructed using methodologies for the construction of assets borrowed from character animation: these techniques have been recently implemented in many entertainment applications known as “retopology”. The normal map is used as usual, in order to shade the surface of the model in a realistic way. The displacement map is used to finish, in real-time, the flat faces of the object, by adding the geometric detail missing in the low-poly models. The accuracy of the resulting geometry is progressively refined based on the distance from the viewing point, so the result is like a continuous level of detail, the only difference being that there is no need to create different 3D models for one and the same object. All geometric detail is calculated in real-time according to the displacement map. This approach can be used in Unity, a real-time 3D engine originally designed for developing computer games. It provides a powerful rendering engine, fully integrated with a complete set of intuitive tools and rapid workflows that allow users to easily create interactive 3D contents. With the release of Unity 4.0, new rendering features have been added, including DirectX 11 support. Real-time tessellation is a technique that can be applied by using such technology. Since the displacement and the resulting geometry are calculated by the GPU, the time-based execution cost of this technique is very low.
Assessment of the warning system against floods on a rural area: the case of the lower Siret River (Romania)
Authors: Salit F. , Zaharia L. , Beltrando G.
Published: February 2013

Abstract. The development of non-structural measures such as an early warning system, across the Europe, in flood risk management, requires a better understanding of the public involved and of the territory threatened. This paper aims to conduct an assessment of early warning and information to people with an analysis of the population's behaviour, presented in a form of an event tree. The objective is to understand the strengths and weaknesses of the warning system during a deadly flood in the lower Siret River (Romania) in 2005 and to demonstrate that each warning system has to be adapted to the territory in which it is effective. The behavioural model aims to determine to what extent the warning system can be improved but also to suggest ways to adapt risk education to the study area.
Distribution and spread of the invasive slug Arion vulgaris Moquin-Tandon in Norway
Authors: Hatteland Bjørn Arild , Roth Steffen , Andersen Arild , Kaasa Kristin , Støa Bente , Solhøy Torstein
Published: February 2013

The present distribution of the invasive slug Arion vulgaris Moquin-Tandon was studied in Norway. This important pest species has spread to many parts of Europe during the last decades, inflicting damage to agriculture and domestic gardens. It was first recorded in Norway in 1988, and has since spread to many parts of the country and is now recorded in 192 municipalities. We surveyed the current distribution by sampling and gathering species records in cooperation with garden societies and local authorities. Based on these records, we present distributional data as well as relative predictions of future distributions based on geoclimatic parameters. Currently, A. vulgaris covers most of coastal southern Norway while it shows a patchy distribution in northern Norway, recorded as far north as Finnsnes in Troms County.