bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluation of Implementation of Health IT
Authors: Cresswell Kathrin
Published: February 2025

Information systems can only reach their full potential if their implementation is effective, and there is much to be learned as to what makes an “effective” implementation. In light of the substantial investments in Health Information Technology internationally, implementation evaluations are a powerful tool to ensure that technologies are enabled to fulfil their potential in improving care, reducing cost and increasing efficiency. The most salient characteristics of such evaluations are outlined, considering how they can help to assess adoption processes and outcomes through a continuous cycle of scientific enquiry and learning. A brief description surrounding potential theoretical lenses that may be drawn on is given. Issues discussed will be illustrated with the help of a case study on the implementation and adoption of Electronic Health Records in English hospitals. Practical challenges encountered and potential ways to address these during the conduct of health IT implementation evaluations illustrated include: 1) ways to cope with the shifting nature of reality (e.g. changes in local implementation strategies need to be reflected in the methods), 2) the need to examine processes as well as outcomes, 3) researching implementation in context with attention to both local processes and wider (e.g. political) developments, and 4) the pragmatic use of theoretical lenses where different approaches can shed light on different aspects of the implementation and adoption process.
Evolving Health IT Systems Evaluation: The Convergence of Health Informatics and HTA
Authors: Doupi Persephone
Published: February 2025

The credibility and reliability of health IT systems as a means of achieving changes towards safer and cost-effective care have been questioned for over two decades due to the lack of methodologically strong evidence. As national level adoption and implementation of health IT are becoming widespread across the EU and globally, but are also being offset by adverse reports, the demands for evidence become more pronounced and the stakes higher. The adaptation of HTA (health technology assessment) methodology as a means to address gaps in health IT evidence production has been proposed repeatedly and tested in the field of telemedicine services. HTA has in many ways run a course parallel to that of health IT, while in certain respects attaining more clear achievements. This contribution investigates aspects of a bilaterally beneficial relation between the two disciplines using three lines of exploration: the methodological goodness-of-fit between health IT evaluation and HTA; the solutions each has proposed to the problem of producing high quality evidence in reduced amount of time; and the way each has addressed the strengthened role and position of patients. The analysis demonstrates areas of convergence between health IT and HTA. It also highlights topics which would need to be jointly addressed in the process, such as innovative and high quality data collection and analysis, inclusion of patient reported outcomes and patient safety, and transferability and generalizability of findings. In closing, it takes a glimpse of the challenges emerging as a result of the progress at the cross-roads of medicine, science and technology.
Ensuring the Quality of Evidence: Using the Best Design to Answer Health IT Questions
Authors: Weir Charlene R.
Published: February 2025

The quality of logic in a research design determines the value of the results and our confidence regarding the validity of the findings. The purpose of this contribution is to review the principles of research design as they apply to research and evaluation in health IT. We review the architecture of research design, the definitions of cause, sources of bias and confounds, and the importance of measurement as related to the various types of health IT questions. The goal is to provide practitioners a roadmap for making decisions for their own specific study. The contribution is organized around the Threats to Validity taxonomy and explains how different design models address these threats through the use of blocking, factorial design, control groups and time series analysis. The contribution discusses randomized experiments, and includes regression discontinuity designs and various quasi-experimental designs with a special emphasis on how to improve pre/post designs. At the end, general recommendations are provided for improving weaker designs and general research procedures.
Requirements for Evidence-Based Templates in Electronic Case Report Forms
Authors: Schweitzer Marco  , Oberbichler Stefan
Published: February 2025

Background: Electronic case report forms (eCRF) play a key role in medical studies and medical data registries (MDR) for clinical research. The creation of suitable eCRFs is a challenging and yet a very individual task.
Specific Requirements of Physiotherapists on the Practical Use of Software in the Therapeutical Process
Authors: Messer-Misak Karin  , Egger Rudolf
Published: February 2025

The current healthcare system requires more effective management. New media and technology are supposed to support the demands of the current healthcare system. By the example of physiotherapy, the primary objective of this study was to define the specific requirements of therapists on the practical use of software which cover the administration, documentation and evaluation of the entire therapy process, including a database with pictures/videos about exercises which can be adapted individually by the therapists. Another objective was to show what conditions for a successful implementation of advanced applications during the entire treatment process have to be fulfilled. The approach of mixed-methods designs was chosen. In the first part a two-stage qualitative study was carried out, followed by a quantitative survey. The results show that the use of the software regarding the therapy-related part is dependent on how adaptable the software is to the special needs of the therapists, that the whole treatment process is mapped on the software and that an additional training during the professional practice must be implemented in order to deploy the use of the software successfully in the therapeutic process.
Evaluation of Game Engines for Cross-Platform Development of Mobile Serious Games for Health
Authors: Kleinschmidt Carina  , Haag Martin
Published: February 2025

Studies have shown that serious games for health can improve patient compliance and help to increase the quality of medical education. Due to a growing availability of mobile devices, especially the development of cross-platform mobile apps is helpful for improving healthcare. As the development can be highly time-consuming and expensive, an alternative development process is needed. Game engines are expected to simplify this process. Therefore, this article examines the question whether using game engines for cross-platform serious games for health can simplify the development compared to the development of a plain HTML5 app. At first, a systematic review of the literature was conducted in different databases (MEDLINE, ACM and IEEE). Afterwards three different game engines were chosen, evaluated in different categories and compared to the development of a HTML5 app. This was realized by implementing a prototypical application in the different engines and conducting a utility analysis. The evaluation shows that the Marmalade engine is the best choice for development in this scenario. Furthermore, it is obvious that the game engines have great benefits against plain HTML5 development as they provide components for graphics, physics, sounds, etc. The authors recommend to use the Marmalade Engine for a cross-platform mobile Serious Game for Health.
ICD-11 (JLMMS) and SCT Inter-Operation
Authors: Mamou Marzouk  , Rector Alan  , Schulz Stefan  , Campbell James  , Solbrig Harold  , Rodrigues Jean-Marie
Published: February 2025

The goal of this work is to contribute to a smooth and semantically sound inter-operability between the ICD-11 (International Classification of Diseases-11th revision Joint Linearization for Mortality, Morbidity and Statistics) and SNOMED CT (SCT). To guarantee such inter-operation between a classification, characterized by a single hierarchy of mutually exclusive and exhaustive classes, as is the JLMMS successor of ICD-10 on the one hand, and the multi-hierarchical, ontology-based clinical terminology SCT on the other hand, we use ontology axioms that logically express generalizable truths. This is expressed by the compositional grammar of SCT, together with queries on axiomsof SCT. We test the feasibility of the method on the circulatory chapter of ICD-11 JLMMS and present limitations and results.
A Diabetes Self-Management Prototype in an AAL-Environment to Detect Remarkable Health States
Authors: Schindelboeck Denise  , Praus Friedrich  , Gall Walter
Published: February 2025

Every year life span is increasing and simultaneously the proportion of people with one or more chronic diseases. This paper presents an implementation of a prototype with a decision tree to detect dangerous health conditions for Diabetes Type 1 and Diabetes Type 2. With the information we collect from Personal Health Devices and data from the Active-Assisted-Living environment, we are in the position to customize thresholds and to get individual results. With the help of a modified Glucose-Insulin Model (based on the minimal model of Stolwijk & Hardy) we predicted the future glucose concentration of the patient. We validated our model with an intention-to-treat pilot study including 8 subjects and obtained a significantly better (p < 2.2−16) result than the original model.
A Patient Safety Information Model for Interoperability
Authors: Rodrigues Jean Marie  , Dhingra-Kumar Neelam  , Schulz Stefan  , Souvignet Julien
Published: February 2025

Current systems that target Patient Safety (PS) like mandatory reporting systems and specific vigilance reporting systems share the same information types but are not interoperable. Ten years ago, WHO embarked on an international project to standardize quality management information systems for PS. The goal is to support interoperability between different systems in a country and to expand international sharing of data on quality and safety management particularly for less developed countries. Two approaches have been used: (i) a bottom-up one starting with existing national PS reporting and international or national vigilance systems, and (ii) a top-down approach that uses the Patient Safety Categorial Structure (PS-CAST) and the Basic Formal Ontology (BFO) upper level ontology versions 1 and 2. The output is currently tested as an integrated information system for quality and PS management in four WHO member states.
Automatic Analysis of Critical Incident Reports: Requirements and Use Cases
Authors: Denecke Kerstin
Published: February 2025

Increasingly, critical incident reports are used as a means to increase patient safety and quality of care. The entire potential of these sources of experiential knowledge remains often unconsidered since retrieval and analysis is difficult and time-consuming, and the reporting systems often do not provide support for these tasks. The objective of this paper is to identify potential use cases for automatic methods that analyse critical incident reports. In more detail, we will describe how faceted search could offer an intuitive retrieval of critical incident reports and how text mining could support in analysing relations among events. To realise an automated analysis, natural language processing needs to be applied. Therefore, we analyse the language of critical incident reports and derive requirements towards automatic processing methods. We learned that there is a huge potential for an automatic analysis of incident reports, but there are still challenges to be solved.
SEMCARE: Multilingual Semantic Search in Semi-Structured Clinical Data
Authors: López-García Pablo  , Kreuzthaler Markus  , Schulz Stefan  , Scherr Daniel  , Daumke Philipp  , Markó Kornél  , Kors Jan A.  , van Mulligen Erik M.  , Wang Xinkai  , Gonna Hanney  , Behr Elijah  , Honrado Ángel
Published: February 2025

The vast amount of clinical data in electronic health records constitutes a great potential for secondary use. However, most of this content consists of unstructured or semi-structured texts, which is difficult to process. Several challenges are still pending: medical language idiosyncrasies in different natural languages, and the large variety of medical terminology systems. In this paper we present SEMCARE, a European initiative designed to minimize these problems by providing a multi-lingual platform (English, German, and Dutch) that allows users to express complex queries and obtain relevant search results from clinical texts. SEMCARE is based on a selection of adapted biomedical terminologies, together with Apache UIMA and Apache Solr as open source state-of-the-art natural language pipeline and indexing technologies. SEMCARE has been deployed and is currently being tested at three medical institutions in the UK, Austria, and the Netherlands, showing promising results in a cardiology use case.
ROAD: the Directory of Open Access Scholarly Resources to Promote Open Access Worldwide
Authors: Cornic Nathalie
Published: February 2025

ROAD, the Directory of Open Access scholarly Resources, is a new service implemented by the ISSN International Centre. ROAD provides a free access to a selection of worldwide, multidisciplinary scholarly resources in open access that have been identified by the ISSN Network. This paper will present ROAD background, its innovative concept and how it is positioned in the open access ecosystem.
SCOAP
Authors: Kutz Angelika
Published: February 2025

SCOAP3is a global partnership which converts high-quality subscription journals in the field of High-Energy Physics to Open Access through redirection of existing subscription funds. Since January 1, 2014 the SCOAP3Gold Open Access Repository is providing free access to scientific articles in high quality journals in the field of High Energy Physics. This article describes this international pilot which flips the current subscription-based financing of scientific publication to an output-based financing model (fair share). This includes a description of the unique mechanisms of SCOAP3as well as its governance structure and short view on the national German contributing partners, especially the German universities (SCOAP3-DH).
Prediction of Outcome after Traumatic Brain Injury: Comparison of Disease State Index and IMPACT Calculator
Authors: Liedes Hilkka  , Mattila Jussi  , Lingsma Hester  , Lötjönen Jyrki  , Menon David  , Tenovuo Olli  , van Gils Mark
Published: February 2025

Traumatic brain injury (TBI) is a major cause of death and disability, especially in young adults. A reliable prediction of outcome after TBI is of great importance in clinical practice and research. We aimed to compare performance of the well-established IMPACT calculator and an alternative method, Disease State Index (DSI), in the prediction of six-month outcome after TBI. Performance of the models was evaluated using 2036 patients with moderate or severe TBI from the International Mission for Prognosis and Analysis of Clinical Trials in TBI (IMPACT) database. Prediction performance of both models was similar. The models with more variables provided better performance than the simpler models. This study showed that the DSI is a valid tool with efficient visualizations that can help clinicians with their decision making process in clinical practice.
Walking Intensity Estimation with a Portable Pedobarography System
Authors: Hellstrom Per Anders Rickard  , Åkerberg Anna  , Ekström Martin  , Folke Mia
Published: February 2025

The aim of this pilot study was to investigate the possibility to find a correlation between the output from a portable pedobarography system and the walking intensity expressed as walking speed. The system uses shoe insoles with force sensing resistors and wireless transmission of the data via Bluetooth. The force-time integral, at the toe-off phase of the step, for the force sensors in the forward part of the right foot was used to measure impulse data for 10 subjects performing walks in three different walking speeds. This data was then corrected by multiplication with the step frequency. This pilot study indicates that the portable pedobarography system output shows a linear relationship with the walking intensity expressed as walking speed on an individual level.
Interprétation par la méthode des éléments finis des mesures de déformations d'une paroi moulée à Colombes
Authors: Serrai K.  , Plumelle C.  , Schmitt P.
Published: February 2025

Deux sections de la paroi moulée ceinturant la station d'épuration des eaux de Seine à Colombes ont été instrumentées. Les résultats des mesures se sont avérés pratiquement confondus avec les résultats obtenus par la méthode aux coefficients de réaction. Cette communication présente un recalage a posteriori utilisant la méthode des éléments finis, et recherchant une loi de comportement appropriée et des paramètres adaptés. Cette étude apporte un éclairage sur l'importance et la signification des paramètres de calcul, déterminants quelle que soit la méthode utilisée.
Comportement d'une paroi moulée en site urbain: Modélisations et mesures
Authors: Vanoudheusden E.  , Petit G.  , Robert J.  , Emeriault F.  , Kastner R.
Published: February 2025

Cette communication présente les résultats des diverses instrumentations mises en place lors des travaux d'excavation d'une station de métro en site urbain. Les résultats de mesures sont comparés aux calculs obtenus par des modélisations aux coefficients de réaction et aux éléments finis. Cette analyse a permis de mettre en évidence les limites des modèles aux coefficients de réaction dans le cas particulier de cette station où butons passifs et tirants actifs sont mis en œuvre conjointement.
Compression mechanism of DMM pile in subsiding soft ground under embankment loading with application to bridge approach embankment
Authors: Bergado D.T.  , Lorenzo G.A.  , Phien-wej N.  , Lin S.S.  , Voottipruex P.
Published: February 2025

A full scale deep mixing improved soft clay ground overlain by 6.0 m high reinforced embankment was constructed and monitored in order to study its deformation and consolidation characteristics. The local differential settlement between the deep mixing pile and its surrounding clay, which could induce downdrag skin friction, was observed from the full-scale test. The effect of local differential settlement and piezometric drawdown on the development of negative skin friction and the compression of the deep mixing piles are discussed, and an analytical method for long-term settlement analysis is presented. To avoid consequent undulation of the pavement at bridge approach, it is crucial that the lengths of deep mixing piles supporting the approach embankment must be varied smoothly. A method of proportioning the lengths and a typical layout of DMM piles for bridge approach embankment are presented.
Cutter Soil Mixing (C.S.M.)
Authors: Fiorotto Renato  , Schöpf Manfred  , Stötzer Erwin
Published: February 2025

Deep mixing methods for the construction of cut-off walls or excavation support systems are carried out typically by the use of single or multiple augers to produce a series of circular columns that may be arranged in different patterns. The New CSM method produces well blended rectangular panels of treated soil. They offer a number of advantages over circular column solutions, the most significant of which are: cost, a reduction in the number of joints in a wall, the freedom to use different types of reinforcement. The machines give the possibility of introducing control instrumentation deep in the ground and thereby to monitor and control quality.
Ground improvement solutions using jet grouting columns
Authors: Pinto A.  , Falcão J.  , Pinto F.  , Ribeiro J. Melo
Published: February 2025

The aim of this paper is to present the main design and execution criteria related with ground improvement and foundation solutions using jet grouting columns, caped by load transfer platforms (LTP), formed by compacted granular fills reinforced by geosynthetics: polypropylene biaxial geogrids or high strength geotextiles.
Traitement antiliquéfaction de remblais et terrains naturels pour un mur de quai en gabions cellulaires
Authors: Varaksin S.  , Spaulding C.  , Briet S.
Published: February 2025

Le Port de San Diego, USA, a réalisé l'extension de son terminal maritime selon le concept d'un mur de quai en gabions cellulaires pour sa partie arrière et d'un quai sur pieux. Cet article décrit les conditions géotechniques, les contraintes sismiques et la justification du choix de la méthode de colonnes ballastées et vibroflottation. La conception d'un matériel spécifique pour ce projet permettant de réaliser les deux techniques  et  ont permis de traiter les terrains naturels et les remblais selon les normes en vigueur. La vérification des critères est analysée et évaluée dans le cadre des recommandations du N.C.E.E.R.
Modelling of horizontal arching on retaining walls
Authors: Chua H.Y.  , Bolton M.D.
Published: February 2025

The horizontal arching mechanism transfers horizontal earth pressures acting on flexible retaining wall panels to neighbouring elements via soil shear stresses. In this research, the horizontal arching mechanism and lateral displacements of fixed cantilever walls are investigated using centrifuge tests. A 300mm high, L-shaped model basement comprising separate but contiguous wall panels of different widths and stiffnesses was built to accommodate this purpose. A series of six tests was carried out at 45 gravities where the panel widths and thicknesses around the model basement were varied, so that the effects of panel geometry and stiffness on horizontal arching could be studied. It is shown that panel crest displacements and base bending moments of the most flexible, narrow panels can be an order of magnitude smaller than conventional active earth pressure calculations would allow.
The relevance of the yield shear strength of plastic clays in the bearing capacity of foundations
Authors: Graterol M. Jaime
Published: February 2025

A comparative analysis is made, of the bearing capacity of foundations using the undrained shear strength cu, φu=0 vs. using the yield shear strength, Sc for saturated normally and over consolidated plastic clays. I bring up the yield shear strength concept in this kind of soil, following the criteria that cohesive clay is a plastic solid and could be expected to exhibit the basic properties of such a material. Finally a criteria is formulated for determination of the bearing capacity of foundations based on the yield shear strength in this kind of soil to keep static equilibrium without experimenting any progressive settlements.
Suction development during pullout of superpile anchors in soft saturated clay
Authors: Singh Baleshwar  , Datta Manoj  , Gulhati Shashi K.
Published: February 2025

As an alternative to long pile anchors as foundations for tension leg platforms, superpile anchors or suction caissons are being increasingly favored. Superpiles derive portions of their pullout capacity from the self-weight of the soil plug and bottom resistance at the base. An experimental investigation was conducted to study the pore water pressure changes during vertical pullout and the resulting suction development above the soil plug and beneath the base of model superpiles.
Pipeline uplift mechanisms using finite element analysis
Authors: Vanden Berghe J.-F.  , Cathie D.  , Ballard J.-C.
Published: February 2025

The proposed paper presents simulations of the soil behaviour during uplift displacement of a pipeline buried in very loose sand using finite elements.
Une nouvelle théorie pour le calcul de la consolidation, du gonflement et du coefficient B dans les sols fins proches de la saturation
Authors: Boutonnier L.  , Virollet M.
Published: February 2025

Après une analyse détaillée de la structure des sols naturels et compactés (intégrant la taille des vides remplis d'air), et en utilisant la loi de Henry, la loi des gaz parfaits, le principe des contraintes effectives et la relation Sr(s) (Srdegré de saturation, s succion), une nouvelle théorie est établie. Elle permet de calculer: (1) les tassements (ou les gonflements) instantanés et le coefficient B quand il y a une variation de la contrainte totale; (2) les tassements ou les gonflements différés (consolidation, gonflement différé sous imbibition, etc.). Cette théorie mono-dimensionnelle est valable pour les sols contenant des bulles d'air occlus et/ou pour des succions inférieures à la succion d'entrée d'air (sols naturels sous la nappe mais aussi dans la frange capillaire, remblais et barrages construits côté humide de l'optimum Proctor).
Analysis of P-Y curves for single piles from the prebored pressuremeter test
Authors: Bouafia A.  , Lachenani A.
Published: February 2025

The proposed paper is aimed at presenting the results of an extensive analysis of sixteen full-scale horizontal piles loading tests in a diversity of soil conditions (2 sandy sites, 3 clayey sites and 1 silty site). It was shown the existence of fundamental relationships between the P-Y curve parameters, the measured PMT parameters and the lateral pile/soil stiffness Kr. Comparison between the experimental load-deflection behaviour of test piles and the predicted ones according to these relationships showed very good agreement in sandy soils as well as in clayey soils.
The use of CPT to predict the load carrying capacity of piles in expansive soils of Sudan
Authors: Elsharief Ahmed M.  , Ahmed Elfateh O.  , Mohamedzein Yahia M.
Published: February 2025

The determination of load carrying capacity of bored piles generally uses the conventional semi-empirical static methods. For piles in expansive soils, more concern was given to the uplift forces. Few researches dealt with the prediction of the load carrying capacity of bored piles in expansive soils. In this paper some published CPT based methods are used to predict the ultimate capacity of bored piles and the change in capacity due to increase of moisture from semi-dry to excessive wetting. The results show that the CPT based design methods are promising when used to predict the capacity of small diameter short bored piles.
CAPWAP testing – theory and application
Authors: Green T.A.L.  , Kightley M.L.
Published: February 2025

CAPWAP (Case Pile Wave Analysis Program) is an analytical method used in the dynamic testing of driven precast piles. Named after the Case Western Reserve University in the USA, this method combines measured field data with wave equations to predict the static bearing capacity of piles. Through an iterative process the analysis yields a complete model of the resistance in the pile, distinguishing between the dynamic and static resistance. This provides a wealth of useful information particularly with regard to the deflection of the pile under load, the integrity of the pile shaft during driving and the performance of the drop hammer, driving system and pile material. A number of precast concrete piles were tested during the course of two piling projects recently completed in South Africa. Although the use of such testing may be commonplace in some parts of the world, it is still relatively new to this country. The results of these recent tests were therefore extremely beneficial in assessing the accuracy of the original design as well as the value of the CAPWAP method in analysing the capacity of piled foundations. This paper describes the theory and practical application of the CAPWAP analysis and presents some of the results and knowledge gained during recent testing in South Africa.
An experimental study of LNAPL lens formation using a centrifuge
Authors: Nakajima H.  , Kutter B.L.  , Ginn T.R.  , Chang D.P.  , Mariño M.A.
Published: February 2025

Understanding movement of light non-aqueous phase liquids (LNAPLs) in a subsurface environment is important for effective remediation and recovery. Processes involving LNAPL formation of a lens shaped plume on the groundwater table is of particular interest since the LNAPL lens can act as a long-term source of groundwater contamination. In this study, two-dimensional centrifuge model tests were carried out to simulate the movement of an LNAPL plume in the vadose zone and to investigate how LNAPL accumulates and forms a lens-shaped plume above the unconfined aquifer. The model represents a point spill of an LNAPL from approximately 1 meter above the water table in prototype scale. We present a description of the centrifuge test system we developed and the results obtained from image analysis. The comparison of the centrifuge tests and the numerical simulations showed good overall agreement especially in the plume shape and propagation pattern. The shape of the LNAPL plume was observed to elongate when a sloping groundwater table was simulated in the model tests.
A solution for toppling
Authors: Soriano A.  , Valderrama M.  , González J.
Published: February 2025

The failure mode of toppling of rock slopes can be approached by a discrete formulation of discontinuum mechanics, but also by means of a differential equation based on the equilibrium conditions written in terms of the mechanics of continua. This second approach could be of special interest when dealing with thin rock strata. This paper describes a procedure to establish the equations of toppling of rock slopes taking into account external forces that might be applied by means of anchors and soil nailing. The procedure is applied to a particular case of toppling that was initiated when excavating a slope on thinly stratified rock and that was stabilized by means of soil nailing and anchors.
Combined approach for site investigation in terms of the analysis of rainfall induced landslides
Authors: Thielen A.  , Friedel S.  , Plötze M.  , Springman S.M.
Published: February 2025

The risk of surficial landslide events arising increases wherever the combination of intense periods of rainfall, steep topography and soil conditions are critical. Monitoring of the condition of the ground can provide valuable information for the risk assessment of potential landslides. Prior to installing the instruments, a detailed site investigation is essential. Ideally, both monitoring and initial site investigation should deliver high-resolution 3D spatial information about the soil conditions without creating disturbance such as artificial paths of infiltration. An integrated investigation of a test site is presented. Results of geological, geophysical and geotechnical methods are compared and used to derive an integrated model.In addition to geological studies and classical geotechnical testing including dynamic penetration tests and analysis of soil samples, a geophysical investigation was carried out using electrical resistivity tomography. The integrated model of the subsurface resulting from several complementary datasets suggests that this procedure is very useful for optimising the design of a monitoring system, in terms of quality,cost efficiency and predictive capability of the hydro-mechanical models derived from, or validated by, the planned monitoring system for areas likely to be subject to landslides.
Post liquefaction characteristics of low plasticity silt
Authors: Hyde Adrian F.L.  , Higuchi Toru
Published: February 2025

Artificial islands and coastal reclamation areas are frequently constructed using silty materials. The fills are generally consolidated under K0conditions and then subjected to enhanced anisotropic stresses under the weight of overlying structures. Following liquefaction in a severe earthquake these reclaimed areas and associated structures are usually repaired and brought back into service. It is important for designers to be able to estimate the new cyclic strength of the fill materials following seismic shakedown. In order to investigate the post-cyclic recompression and post-drainage cyclic strength of the silt, reconsolidation was allowed after samples had failed due to undrained cyclic triaxial loading. Subsequently, samples were subjected to further cyclic loading under undrained conditions. Although samples with a greater degree of anisotropic consolidation had less volumetric strain, larger axial strains were observed during reconsolidation, thus greater post-earthquake settlements are to be expected in these conditions. For isotropically consolidated samples liquefaction under cyclic loading resulted in a weaker soil structure more susceptible to cyclic mobility, while the post-drainage cyclic strength for anisotropically consolidated samples increased with increasing magnitude of initial sustained deviator stress. Soils which are anisotropically consolidated by the weight of overlying structures and have been brought to cyclic failure are more resistant to liquefaction during seismic aftershocks.
Evaluation of Küçükçekmece Region with respect to soil amplification
Authors: Kiliç H.  , Tohumcu Özener P.  , Yildirim M.  , Özaydin K.  , Adatepe Ş.
Published: February 2025

In this study, the local soil conditions at Küçükçekmece-Sefaköy regions in Istanbul are investigated and a microzonation study is carried out with respect to soil amplification in accordance with the new Microzonation Manual (MERM, 2003). Within the framework of a project implemented for investigation of the region with respect to suitability for settlement, the geological and tectonic characteristics of the region were investigated with the aid of soil exploration borings. In order to be able to investigate the effects of local soil conditions on the dynamic behavior, one dimensional site response analysis are performed with the computer code EERA by utilizing the findings of field and laboratory investigations. The outcomes of the numerical analyses and emprical equations are processed by GIS techniques in order to produce microzonation maps in terms of soil amplification.
Modélisation numérique des inclusions rigides comme solution aux problèmes de liquéfaction
Authors: Lopez-Caballero F.  , Modaressi A.
Published: February 2025

Le comportement non-linéaire des sols joue un rôle très important dans l'estimation des risques sismiques sur un site. Dans cette optique, on a testé la performance d'un type de solution au problème de liquéfaction, i.e. l'utilisation des inclusions rigides, sur un profil de sable donné. Pour cela, on a utilisé une modélisation numérique en contraintes effectives. Le comportement du sable est modélisé à l'aide d'un modèle de comportement élastoplastique permettant de simuler entre autres des phénomènes telles que la mobilité cyclique et la densification du sable lors de chargements. L'influence des paramètres tels que l'épaisseur des inclusions et leur coefficient de perméabilité sur la réponse du profil a été étudiée.
Restoration of foundation of northern library of Bayon temple, Angkor
Authors: Iwasaki Y.
Published: February 2025

Restoration work of northern library of Bayon in Angkor Thom, Cambodia, is described in terms of geotechnical aspects. The original foundationconsists of compacted sand of about 5m in height with 10m and 15m in width and length. Partial dismantling was perfomrmed and reconstructed by slacked lime mixed soil. The paper reports general aspect of the ground condition, dismantling process, and reconstruction of the foundation with mechanical properties of compacted slacked lime mixed soil.
JGS comprehensive foundation design code: Geo-code 21
Authors: Honjo Y.  , Kikuchi Y.  , Suzuki M.  , Tani K.  , Shirato M.
Published: February 2025

A proto type comprehensive foundation design code which can harmonize all the major foundation design codes in Japan is proposed in this study. This study is much motivated by the rapid development and popularization of the limit state design based design codes in the world, including ISO2394 and Eurocodes, as well as of the performance based design concept especially after the conclusion of WTO/TBT agreement in 1995. In proposing the code, it is much contemplated to propose a concept which can harmonize all the major Japanese foundation design codes that have been developed rather separated way due to many historical reasons. A comprehensive design code is a concept we proposed to achieve this aim. By doing so, we intend to dispatch our foundation design technology to the world by a single voice. This code just has been established as one of JGS Standards under the name ‘Principles for Foundation Design Grounded on Performance Based Design Concept’.
Portfolio based approach to project risk management
Authors: Nußbaumer Manfred  , Nübel Konrad
Published: February 2025

Risk can be understood as the remaining potential of negative deviation to the business objective. Modern Risk management should provide a tool to describe the whole risk-situation of a company. Particularly, contractors active in the field of geotechnical engineering should not overstress their corporate project risk portfolio. Geotechnical projects often contain for the contractor a large amount of risks which have to be carried by the company in case of risk realisation. Therefore a well-structured corporate project portfolio will consist of a balance of high and low-risk projects. The paper describes the process of risk driven project portfolio management. Starting from risk identification on a project level the paper will deal with methods to accumulate the potential project risks to an overall description of the company situation. This is simply the sum of the risk exposure for each individual project weighted by their probability of occurrence. Probability of occurrence can be described by a Gaussian distribution and the accumulation can be modelled by means of a Monte Carlo Method. Examples for risk identification, measuring and monitoring in geotechnical projects are given. It is shown that it is important to track the project risk exposure over time. Some low-risk projects may become high risk and vice versa. The risk management process eventually provides the necessary basis for a company to decide on the extent of risk it is prepared to retain, or that which must be transferred or financed.
Integral design of motorways on soft soil on the basis of whole life costs
Authors: Venmans A.A.M.  , Förster U.  , Hooimeijer R.H.
Published: February 2025

The Ministry of Transport has developed the decision support model MRoad for rapid design of pavements embankments. MRoad predicts costs, construction time, effect on adjacent structures and roads and maintenance. This publication describes the interaction of the model with other tools used in motorway design. The relationship between functional requirements and requirements for geotechnical design is explained. The design process is illustrated by a case study for widening a motorway on soft soil. Considering costs and road capacity during construction, a piled embankment is the best choice. The presence of soft soil has a large effect on project costs.
Evaluation of predicted equations for swelling potential
Authors: Elarabi Hussein
Published: February 2025

Attempts have been made by various researchers to suggest methods for identification and classification of expansive soils. This paper is concerned with the comparison of the predicted equations of swelling potential of expansive soils. A comparison between nine different predicted equations for swell percent was carried out. The results brought from each equation are later compared to experimental results for soil samples obtained from three different site locations chosen according to their swelling potential: moderate, high and very high. A conclusion for the use of the predicted equations based on these comparisons is outlined in this work.
Administrative report: TC 10 – Geophysical testing in geotechnical engineering
Authors: Massarsch K. Rainer  , Rydén Nils
Published: February 2025

The terms of reference and the scope of main activities are presented. During the present term TC 10 has focused on the electronic information exchange, using an interactive Web platform and the establishment of Geophysics Info, a database on geophysical methods. A main objective was the development of a Guidance document on Seismic Downhole Testing. Other activities included sponsorship of the conference on Site Characterization, ISC'2 and organisation of a Workshop on Geophysical Testing.
Administrative report: TC29 – Laboratory stress-strain and strength testing of geomaterials
Authors: Jardine R.J.
Published: February 2025

TC-29 has been very active since the Istanbul Conference. This report describes its Terms of Reference, work and achievements.
Influence of cementation and density on G
Authors: Mohsin A.K.M.  , Airey D.W.
Published: February 2025

This paper presents data on the variation of Gmaxwith stress level and density for uncemented and cemented sands. This has been obtained using a technique developed by the authors for the continuous monitoring of Gmaxduring consolidation and shearing in triaxial tests. This technique has been used to investigate the variation of Gmaxfor Toyoura sand and a carbonate sand subject to a range of stress paths. The results for these uncemented sands are broadly consistent with other published data but suggest that the effects of mean effective stress, p', are not being correctly predicted by existing empirical relations at higher stress levels. Further tests have been performed on the carbonate sand which has been artifically cemented and prepared at a range of cement contents and densities. It has been found that existing empirical expressions are generally poor at estimating Gmax. An equation has been developed that relates Gmaxto density, stress level and cement content. The paper presents briefly the methodology, some typical results and some comparisons with existing empirical approaches for estimating Gmax.
CPTU dissipation behavior of overconsolidated clay
Authors: Lee W.J.  , Kim T.J.  , Kim S.I.
Published: February 2025

In normally clays and silts, excess pore pressures due to piezocone penetration show a monotonically decreasing response with time, but dissipation tests performed in heavily overconsolidated soils show dilatory behavior. Therefore, available solutions proposed for normally consolidated soils do not adequately evaluate the response of pore water pressure in overconsolidated soils. In order to predict the coefficient of consolidation in non-standard dissipation curve, the distribution characteristics of individual excess pore pressure components (Δuoct&Δushear) are studied. The influence zones of the octahedral and shear components due to penetration are estimated by theoretical framework and experimental method. In this study, the predicted distribution results at OCR=10 and OCR=20 are compared by the piezocone penetration results in Korea University Calibration Chamber.
Numerical models of the reinforced soil
Authors: Gaszynski J.  , Gwozdz-Lason M.
Published: February 2025

The paper considers the issue of ground-medium reinforcement. Based on generally accepted principles the author presents numerical modelling patterns of subsoil reinforced by gravel-columns. The compares the outcome of the numerical simulations with the measured load capacity of gravel columns located along the motorway bypass of Cracow, Poland. The paper constitutes an attempt to summarise and generalise earlier research which involved FEM numeric procedures and the Z_Soil package, and utilised an elastic-plastic model of a ground medium.
How do fabric and dilatancy affect the strength of granular materials
Authors: Wan R.G.  , Al-Mamun M.  , Guo P.J.
Published: February 2025

The paper explores the role of dilatancy on the shear strength of a granular material by highlighting both of its particulate nature and microstructure. A fabric embedded stress dilatancy equation is used in an elastoplastic model to demonstrate fabric-dilatancy related sand behaviour. The importance of dilatancy is highlighted by examining sand response along loading paths other than drained and undrained conditions. It is found that the strength of sand is not at all bounded by the ones obtained in drained and undrained conditions. It turns out that lower strengths are encountered under strain paths with forced dilation or compaction. This is confirmed by microstructural observations made on a granular assembly of photoelastic particles loaded biaxially.
Overall regularities of soil-structure interaction
Authors: Paramonov V.N.  , Shashkin C.G.  , Vasenin V.A.
Published: February 2025

Subsoil–superstructure interaction is conducive to changes in stress-strain condition of the bearing elements of a building different to stress-strain values predicted by means of traditional calculations. The paper contains an outline of major effects brought to light by means of numerical modelling of soil-structure interaction.
Observed and predicted behaviour of clay foundation response under the Sunshine Motorway Trial Embankment
Authors: Rankine B.  , Sivakugan N.  , Wijeyakulasuriya V.
Published: February 2025

In 1992, Queensland Department of Main Roads was commissioned to monitor and interpret the findings of a fully instrumented trial embankment in Area 2A of the Sunshine Motorway, South East Queensland. This embankment was used to observe the foundation response upon loading, and evaluate the effectiveness of various ground improvement techniques on the soft, organic clays characteristic of this region. The principal focus of this paper is to compare the numerical predictions obtained from the finite difference analysis with field data obtained during the construction phase. The numerical analysis was undertaken using the finite difference program, FLAC, and deformations predicted on the basis of a fully coupled Biot consolidation model. Vertical drains installed in the trial embankment were modelled by converting each system into a number of equivalent parallel drain walls, and adjusting the coefficient of permeability to account for the smear generated through the drain installation.
Nursing Students' Satisfaction with Mobile Academic Electronic Medical Records for Undergraduate Clinical Practicum
Authors: Choi Mona  , Park Joon Ho  , Lee Hyeong Suk
Published: February 2025

The purpose of study was to evaluate satisfaction with and usability of mobile academic electronic medical records (AEMR) for undergraduate nursing students' clinical practicum. After an AEMR application on mobile devices was applied to the experimental group while a PC-based EMR system was used for the control group as usual in the fall semester, 2014. Two items of practicum satisfaction such as preparation of lab test and understanding of the results, and nursing intervention and documentation were significantly higher in the experiment group. The findings of usability survey showed that students in the experiment group consider the use of mobile AEMR in their job would increase their productivity.
Iranian Novice Nursing Faculty Experiences on Their New Roles in Relation to IT Literacy
Authors: Hosseini Seyed-Masoud  , Heydari Abbas  , Karimi Moonaghi Hossein
Published: February 2025

In recent years, there has been a fast spread of using new technologies and software in health management areas. Nursing education should be accommodated with this change to provide qualified nurses. There are little studies on novice nursing faculty challenges to perform their new roles in relation to IT literacy, specifically in Iran. Qualitative approach may provide first hand data to understand novice nursing faculty perceptions on their new roles that can be used to develop an actual empowerment program. A qualitative design was applied to explore novice nursing faculty experiences to perform their new roles in Mashhad nursing school (Iran). Data were gathered by in depth unstructured interviews from nine eligible participants. Two main themes related to IT competencies emerged from data as: “Efficiency concern” and “Importance of support”. Findings support that novice faculty should be familiarized with new systems and software in health management.