2009 Advanced Technologies for Enhanced Quality of Life最新文献

{"title":"Towards Improved Assessment of Bone Fracture Risk","authors":"J. Sloten, G. H. Lenthe","doi":"10.1109/AT-EQUAL.2009.14","DOIUrl":"https://doi.org/10.1109/AT-EQUAL.2009.14","url":null,"abstract":"The mechanical competence of a bone depends on its density, its geometry and its internal trabecular microarchitecture. The gold standard to determine bone competence is an experimental, mechanical test. Direct mechanical testing is a straight-forward procedure, but is limited by its destructiveness. For the clinician, the prediction of bone quality for individual patients is, so far, more or less restricted to the quantitative analysis of bone density alone. Finite element (FE) analysis of bone can be used as a tool to non-destructively assess bone competence. FE analysis is a computational technique; it is the most widely used method in engineering for structural analysis. With FE analysis it is possible to perform a 'virtual experiment', i.e. the simulation of a mechanical test in great detail and with high precision. What is needed for that are, first, in vivo imaging capabilities to assess bone structure with adequate resolution, and second, appropriate software to solve the image-based FE models [1]. Both requirements have seen a tremendous development over the last years. The last decade has seen the commercial introduction and proliferation of non-destructive microstructural imaging systems such as desktop micro-computed tomography (µCT), which allow easy and relatively inexpensive access to the 3D microarchitecture of bone [2]. Furthermore, the introduction of new computational techniques has allowed to solve the increasingly large FE models, that represent bone in more and more detail [3, 4]. With the recent advent of microstructural in vivo patient imaging systems, these methodologies have reached a level that it is now becoming possible to accurately assess bone strength in humans. Although most applications are still in an experimental setting, it has been clearly demonstrated that it is possible to use these techniques in a clinical setting [5]. The high level of automation, the continuing increase in computational power, and above all the improved predictive capacity over predictions based on bone mass, make clear that there is great potential in the clinical arena for in vivo FE analyses Ideally, the development of in vivo imaging systems with microstructural resolution better than 50 mm would allow measurement of patients at different time points and at different anatomical sites. Unfortunately, such systems are not yet available, but the resolution at peripheral sites has reached a level (80 mm) that allows elucidation of individual microstructural bone elements. Whether a resolution of 50 mm in vivo will be reached using conventional CT technology remains to be seen as the required doses may be too high. With respect to these dose considerations, MRI may have considerable potential for future clinical applications to overcome some of the limitations with X-ray CT. With the advent of new clinical MRI systems with higher field strengths, and the introduction of fast parallel-imaging acquisition techniques, higher resolutions in M","PeriodicalId":407640,"journal":{"name":"2009 Advanced Technologies for Enhanced Quality of Life","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122289318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Need for Multidisciplinary Approach in the Treatment of Eating Behaviour Disorders of the Young Population","authors":"C. Stafie, M. Apostol","doi":"10.1109/AT-EQUAL.2009.47","DOIUrl":"https://doi.org/10.1109/AT-EQUAL.2009.47","url":null,"abstract":"Eating behavior disorders represent deviations from the normal eating quantity and rhythm of an individual, which lead to hydro-electrolytic disorders, metabolic illnesses, psychic disorders or even exitus, as it is the case of anorexia nervosa, unless measures are taken in view of a prompt correction of eating disorders. Eating behavior disorders (EBD) are represented by anorexia nervosa and bulimia. The former may lead to exitus within several months if the food privation is non-selective and includes vitamin drinks (juices) – in this case, family has a decisive role in timely noticing and intervening for hospitalization, providing specialized psycho-emotional assistance; bulimia generates serious hydro-electrolytic disorders and severe devitaminization, with possible occurrence of metabolic illnesses, depressive psychosis and even of suicide. We should underline the fact that both EBD illnesses are triggered by a distress, considered to belong to the “mourning period”: parents’ divorce, separation from a lover, death of a family member. The study is a prospective, non-randomized, open one. The DSM-IV questionnaire proposes the following research criteria: more than two recurrent episodes of eating frenzy (bulimic crises) per week, during a six-month period. The cognitive-behavioral evaluation has three stages: • Behavioral restructuring • Cognitive restructuring • Organizing the patients in stress-management and self-esteem groups.","PeriodicalId":407640,"journal":{"name":"2009 Advanced Technologies for Enhanced Quality of Life","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132844622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Communication between the Sensor Levels for Monitoring Subjects with Disabilities","authors":"M. Hnatiuc, Alexandru Caranica","doi":"10.1109/AT-EQUAL.2009.27","DOIUrl":"https://doi.org/10.1109/AT-EQUAL.2009.27","url":null,"abstract":"The intelligent sensors used to detect the subject’s behavior are classified on priority levels, superior and inferior. The levels might work in parallel or not. Which level is used is decided by the system in function of that event. The communication modes between levels are presented in this paper. The parallel/distributed structure is introduced because the sensor levels work in parallel. Testing of an embedded system, used for a communication node between sensors and Microsystems is detailed in the final part of this paper.","PeriodicalId":407640,"journal":{"name":"2009 Advanced Technologies for Enhanced Quality of Life","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132148784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Statistic Evaluation of the Clinical Benefits of Rehabilitation in Patients with Spine Cord Injury Undergoing Complex Treatment with Specific Therapeutic Factors from Techirghiol Health Resort","authors":"C. Ciobotaru, Minea Mihaela, O. Surdu, Surdu Traian Virgiliu","doi":"10.1109/AT-EQUAL.2009.23","DOIUrl":"https://doi.org/10.1109/AT-EQUAL.2009.23","url":null,"abstract":"Introduction: Spine cord injuries are frequent pathology in general population, which cause significant locomotor disabilities. Objective: We wanted to evaluate the clinical benefits of rehabilitation using natural factors (climate, sapropelic mud, salty water of the lake), applied to patients with spine cord injury. Material and method: We studied ( retrospective) patients with spine cord injury at first presentation in Techirghiol health resort, hospitalized from June, 1st 2007 to June, 1st, 2008, undergoing specific rehabilitation treatment and evaluated the clinical benefits of balneal treatment. Results: The first traumatic condition was fall down (37%), and the second car accident(14,4%). The most of them (84%) use wheelchair as support of travel and 30% needs accompanying standing. We noticed after the treatment improvement of muscle activity (both: spastic and flaccid) and psychological and muscle relaxation. Conclusions: Adequate administration of natural factors corroborate with progressive intensity of kinetotherapy or hydro-kineto-therapy completed with electrotherapy and massage lead to improvement of scores of patient. Quality of life of patients can increases in many ways: self esteem, interest for treatment, encouraging other patients, implication in family life and finding new means of support for travel and self assistance.","PeriodicalId":407640,"journal":{"name":"2009 Advanced Technologies for Enhanced Quality of Life","volume":"1079 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133082989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Clearance in Total Hip Endoprosthesis","authors":"F. Munteanu, P. Sîrbu, C. Barbarosie, A. Munteanu, P. Botez","doi":"10.1109/AT-EQUAL.2009.48","DOIUrl":"https://doi.org/10.1109/AT-EQUAL.2009.48","url":null,"abstract":"The aim of this paper is to establish a theoretical -experimental method which would emphasize the importance of radial clearance between the cotyloid cup and the femoral head in total hip endoprostheses. Three UHMWPE acetabular cups of different diameters, with the same diameter of the femoral head (CoCrMo), were tested on equipment that determines the tribologic parameters of the biomaterials used in total hip endprostheses. The results showed minimum wear for a 0.1-0.15mm radial clearance and maximum wear at clearance values close to 0, or higher than 0.5mm.","PeriodicalId":407640,"journal":{"name":"2009 Advanced Technologies for Enhanced Quality of Life","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122982261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Gliding Nail (GN). A Universal Implant for Immediate Weight Bearing Restauration in all Per- and Subtrochanteric Femur Fractures. Evaluation of 501 Patients","authors":"F. W., Hilsenbeck Fl., Stürzenhofecker Ph.","doi":"10.1109/AT-EQUAL.2009.41","DOIUrl":"https://doi.org/10.1109/AT-EQUAL.2009.41","url":null,"abstract":"Clinical problem: the cut out is one of the major and most severe complications in the management of trochanteric and subtrochanteric fractures in elderly patients due to osteoporosis. In experimental examinations we found a significant decrease of the cut through and out of the I beam profile femur neck component of the GN as compared to a single or double screw fixation. The main purpose of this study was therefore to analyse if it is possible to minimise the risk of implant related complications by using the GN osteosynthesis in all per- and subtrochanteric fractures","PeriodicalId":407640,"journal":{"name":"2009 Advanced Technologies for Enhanced Quality of Life","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127526782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design of a Central Pattern Generator Using Reservoir Computing for Learning Human Motion","authors":"F. Wyffels, B. Schrauwen","doi":"10.1109/AT-EQUAL.2009.32","DOIUrl":"https://doi.org/10.1109/AT-EQUAL.2009.32","url":null,"abstract":"To generate coordinated periodic movements, robot locomotion demands mechanisms which are able to learn and produce stable rhythmic motion in a controllable way. Because systems based on biological central pattern generators (CPGs) can cope with these demands, these kind of systems are gaining in success. In this work we introduce a novel methodology that uses the dynamics of a randomly connected recurrent neural network for the design of CPGs. When a randomly connected recurrent neural network is excited with one or more useful signals, an output can be trained by learning an instantaneous linear mapping of the neuron states. This technique is known as reservoir computing (RC). We will show that RC has the necessary capabilities to be fruitful in designing a CPG that is able to learn human motion which is applicable for imitation learning in humanoid robots.","PeriodicalId":407640,"journal":{"name":"2009 Advanced Technologies for Enhanced Quality of Life","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124070205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Novel Information Measure for Adaptive Controllers in Swarm Systems","authors":"P. Prodi, B. Porr, Florentin Worogtter","doi":"10.1109/AT-EQUAL.2009.35","DOIUrl":"https://doi.org/10.1109/AT-EQUAL.2009.35","url":null,"abstract":"In this work we have developed an information measure called maxcorr suitable for closed loop controllers that makes use of temporal unsupervised learning. It is novel because is computed at the input side of the controller and consider the semantic value of signals, rather then being based on the non semantic approach of Shannon's entropy. The maxcorr can be applied to individual agents to estimate their learning ability, but most importantly to social swarms where agents are learning all the time to achieve a common goal. Indeed in a social system all agents learn at the same time thus being unpredictable. However maxcorr quantitatively explains how agents of a social system select information to make the closed loop model more predictable. Results are compatible with the Luhmann's theory of social differentiation.","PeriodicalId":407640,"journal":{"name":"2009 Advanced Technologies for Enhanced Quality of Life","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127047025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A High Resolution Bi-Directional Communication through a Brain-Chip Interface","authors":"M. Maschietto, M. Mahmud, G. Stefano, S. Vassanelli","doi":"10.1109/AT-EQUAL.2009.18","DOIUrl":"https://doi.org/10.1109/AT-EQUAL.2009.18","url":null,"abstract":"Existing brain-machine interfacing techniques allow either high precision recordings from one or a few single neurons, or low spatial resolution recordings with a sparse sampling within the networks. Through our app-roach an efficient simultaneous bidirectional communication to the brain is realized using capacitively coupled recording and stimulation sites arranged in a large 2D multi-transistor array (MTA) with 1000 elements, integrated to a planar chip at high resolution (10μm pitch and below). The aim of the present work is to evaluate the reliability of a simple-generation silicon micro-device in recording neuronal signals from rat brain. Simultaneous recording of signals using this chip from the somatosensory cortex (S1) of living rat, are compared to standard in vivo recordings with a glass micropipette. We show that the two types of signals are identical, indicating the possibility to record signals at the same time from different sites and to perform a real-time electrical imaging of the brain cortex in vivo.","PeriodicalId":407640,"journal":{"name":"2009 Advanced Technologies for Enhanced Quality of Life","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129700523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adaptive Anytime Motion Planning for Robust Robot Navigation in Natural Environments","authors":"M. Pivtoraiko","doi":"10.1109/AT-EQUAL.2009.33","DOIUrl":"https://doi.org/10.1109/AT-EQUAL.2009.33","url":null,"abstract":"The problem of robot navigation is treated under constraints of limited perception horizon in complex, cluttered, natural environments. We propose a solution based on our previous work in fast constrained motion planning, where arbitrary mobility constraints could be satisfied while the planning problem is reduced to unconstrained heuristic search in state lattices. By trading off optimality, we improve planner run-times and increase robustness through achieving anytime planning quality, such that it becomes possible to integrate the planner within the high speed navigation framework. We show that using a planner in navigation works well and fast enough for real vehicle implementation, while it presents a number of important benefits over state-of-the-art in navigation.","PeriodicalId":407640,"journal":{"name":"2009 Advanced Technologies for Enhanced Quality of Life","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121701583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}