On Autonomous Articulated Vehicles

OpenAIRE

Nayl, Thaker

2015-01-01

The objective of this thesis is to address the problems of modeling, path planning and path following for an articulated vehicle in a realistic environment and in the presence of multiple obstacles.In greater detail, the problem of the kinematic modeling of an articulated vehicle is revisited through the proposal of a proper model in which the dimensions and properties of the vehicle can be fully described, rather than considering it as a unit point. Based on this approach, nonlinear and line...

Gender Issues and Language Articulation; a Brief Look at Pros of Gender Neutral Language Articulation

Science.gov (United States)

Ebrahimi, Pouria

2009-01-01

As with the language articulated by learners--in both oral and written form--the supremacy of a masculine language use is witnessed. This brings to light the fact that gender has been excessively an unobserved factor in the process of language teaching. Although learners are apparently used to forming masculine-centered articulation, non-sexist…

Young children's family history of stuttering and their articulation, language and attentional abilities: An exploratory study.

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Choi, Dahye; Conture, Edward G; Tumanova, Victoria; Clark, Chagit E; Walden, Tedra A; Jones, Robin M

The purpose of this study was to determine whether young children who do (CWS) and do not stutter (CWNS) with a positive versus negative family history of stuttering differ in articulation, language and attentional abilities and family histories of articulation, language and attention related disorders. Participants were 25 young CWS and 50 young CWNS. All 75 participants' caregivers consistently reported a positive or negative family history of stuttering across three consecutive time points that were about 8 months apart for a total of approximately 16 months. Each participant's family history focused on the same, relatively limited number of generations (i.e., participants' parents & siblings). Children's family history of stuttering as well as articulation, language, and attention related disorders was obtained from one or two caregivers during an extensive interview. Children's speech and language abilities were measured using four standardized articulation and language tests and their attentional abilities were measured using caregiver reports of temperament. Findings indicated that (1) most caregivers (81.5% or 75 out 92) were consistent in their reporting of positive or negative history of stuttering; (2) CWNS with a positive family history of stuttering, compared to those with a negative family history of stuttering, were more likely to have reported a positive family history of attention deficit/hyperactivity disorder (ADHD), and (3) CWNS with a positive family history of stuttering had lower language scores than those with a negative family history of stuttering. However, there were no such significant differences in family histories of ADHD and language scores for CWS with a positive versus negative family history of stuttering. In addition, although 24% of CWS versus 12% of CWNS's caregivers reported a positive family history of stuttering, inferential analyses indicated no significant differences between CWS and CWNS in relative proportions of family

The Comorbidity between Attention-Deficit/Hyperactivity Disorder (ADHD) in Children and Arabic Speech Sound Disorder

Science.gov (United States)

Hariri, Ruaa Osama

2016-01-01

Children with Attention-Deficiency/Hyperactive Disorder (ADHD) often have co-existing learning disabilities and developmental weaknesses or delays in some areas including speech (Rief, 2005). Seeing that phonological disorders include articulation errors and other forms of speech disorders, studies pertaining to children with ADHD symptoms who…

Vertical repositioning accuracy of magnetic mounting systems on 4 articulator models.

Science.gov (United States)

Lee, Wonsup; Kwon, Ho-Beom

2018-03-01

Research of the ability of a cast mounted on an articulator on maintaining the identical position of a cast mounted on an articulator after repeated repositioning is lacking, despite the possible effects this may have on the occlusion of a mounted cast. The purpose of this in vitro study was to verify and compare the vertical repositioning accuracy of 4 different, commercially available articulator magnetic mounting plate systems. Four articulators and their associated magnetic mounting plates were selected for the study. These were the Artex AR articulator (Amann Girrbach AG), the Denar Mark II articulator (Whip Mix Corp), the Kavo Protar Evo articulator (Kavo Dental GmbH), and the SAM3 articulator (SAM Präzisionstechnik GmbH). Three new magnetic mounting plates were prepared for each articulator system. The repositioning accuracy of each mounting plate was evaluated by comparing the standard deviation of the vertical distances measured between the mounting plate and a laser displacement sensor. The lower arm of the articulator was secured, and the vertical distance was measured by positioning the laser displacement sensor positioned vertically above the mounting plate. Once the vertical distance was measured, the mounting plate was detached from the articulator and reattached manually to prepare for the next measurement. This procedure was repeated 30 times for each of the 3 magnetic mounting plates. Data were analyzed by ANOVA for 2-stage nested design and the Levene test (α=.05). Significant differences were detected among articulator systems and between magnetic mounting plates of the same type. The standard deviations of the measurements made with the Artex AR articulator, Denar Mark II articulator, Kavo Protar Evo articulator, and SAM3 articulator were 0.0027, 0.0308, 0.0214, and 0.0215 mm, respectively. Thus, the repositioning accuracy could be ranked in the order as follows: Artex AR, Kavo Protar Evo, SAM3, and Denar Mark II. The position of the

The Oklahoma PN/ADN Articulation Project Report.

Science.gov (United States)

Oklahoma State Regents for Higher Education, Oklahoma City.

In response to a critical nursing shortage in the state of Oklahoma, the Oklahoma Practical Nursing (PN)/Associate Degree Nursing (ADN) Articulation Project Coordinating Committee was formed in spring 1990 to develop a proposal for program articulation. A curriculum matrix was designed and adopted for use by five regional subcommittees which…

Design articulation for Aesthetics of Interaction

DEFF Research Database (Denmark)

Krogh, Peter; Graves Petersen, Marianne

2009-01-01

In this paper we present three categories of design articulations addressing the characteristic qualities of aesthetics of interaction. By aesthetics of interaction we point to the process in which interactive technology brings about aesthetic experience in the use of interactive technology......-designers. In this case the categories of design articulations frame intended aesthetic experiences. Our mission is that of using aesthetic theory to inform the design of interactive technology, which shapes aesthetic experiences in everyday use....

Instant messaging at the hospital: supporting articulation work?

Science.gov (United States)

Iversen, Tobias Buschmann; Melby, Line; Toussaint, Pieter

2013-09-01

Clinical work is increasingly fragmented and requires extensive articulation and coordination. Computer systems may support such work. In this study, we investigate how instant messaging functions as a tool for supporting articulation work at the hospital. This paper aims to describe the characteristics of instant messaging communication in terms of number and length of messages, distribution over time, and the number of participants included in conversations. We also aim to determine what kind of articulation work is supported by analysing message content. Analysis of one month's worth of instant messages sent through the perioperative coordination and communication system at a Danish hospital. Instant messaging was found to be used extensively for articulation work, mostly through short, simple conversational exchanges. It is used particularly often for communication concerning the patient, specifically, the coordination and logistics of patient care. Instant messaging is used by all actors involved in the perioperative domain. Articulation work and clinical work are hard to separate in a real clinical setting. Predefined messages and strict workflow design do not suffice when supporting communication in the context of collaborative clinical work. Flexibility is of vital importance, and this needs to be reflected in the design of supportive communication systems. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

Unscented Kalman filtering for articulated human tracking

DEFF Research Database (Denmark)

Boesen Lindbo Larsen, Anders; Hauberg, Søren; Pedersen, Kim Steenstrup

2011-01-01

We present an articulated tracking system working with data from a single narrow baseline stereo camera. The use of stereo data allows for some depth disambiguation, a common issue in articulated tracking, which in turn yields likelihoods that are practically unimodal. While current state...... with superior results. Tracking quality is measured by comparing with ground truth data from a marker-based motion capture system....

Active cells for redundant and configurable articulated structures

International Nuclear Information System (INIS)

Swensen, John P; Nawroj, Ahsan I; Pounds, Paul E I; Dollar, Aaron M

2014-01-01

The proposed research effort explores the development of active cells—simple contractile electro-mechanical units that can be used as the material basis for larger articulable structures. Each cell, which might be considered a ‘muscle unit,’ consists of a contractile Nitinol Shape Memory Alloy (SMA) core with conductive terminals. Large numbers of these cells might be combined and externally powered to change phase, contracting to either articulate with a large strain or increase the stiffness of the ensemble, depending on the cell design. Unlike traditional work in modular robotics, the approach presented here focuses on cells that have a simplistic design and function, are inexpensive to fabricate, and are eventually scalable to sub-millimeter sizes, working toward our vision of articulated and robotic structures that can be custom-fabricated from large numbers of general cell units, similar to biological structures. In this paper, we present the design of the active cells and demonstrate their usage with three articulated structures built with them. (paper)

Extensional Information Articulation from the Universe

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Yasufumi Saruwatari

2012-11-01

Full Text Available Information must have physical support and this physical universe comprisesphysical interactions. Hence actual information processes should have a description byinteractions alone, i.e., an extensional description. In this paper, such a model of the processof information articulation from the universe is developed by generalizing the extensivemeasurement theory in metrology. Moreover, a model of the attribute creation processis presented to exemplify a step of the informational articulation process. These modelsdemonstrate the valuableness of the extensional view and are expected to enhance theunderstanding of the extensional aspects of fundamentals of information.

Perceived Articulation Uniformity between Trumpet and Violin Performances

Science.gov (United States)

Cooper, Shelly C.; Hamann, Donald L.

2010-01-01

Directors strive for a unified sound throughout their wind and orchestra ensembles. Articulation affects sound uniformity among winds and strings. This baseline study examined whether a trumpet player could better match a violin player's articulation, as perceived by participants listening to a recording of two performances, when: (a) performing…

Listeners' Perceptions of Speech and Language Disorders

Science.gov (United States)

Allard, Emily R.; Williams, Dale F.

2008-01-01

Using semantic differential scales with nine trait pairs, 445 adults rated five audio-taped speech samples, one depicting an individual without a disorder and four portraying communication disorders. Statistical analyses indicated that the no disorder sample was rated higher with respect to the trait of employability than were the articulation,…

CONSIDERATIONS UPON CONTACT STRESS MODELLING IN DENTAL ARTICULATOR PAIRS

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Carmen Ciornei

2012-05-01

Full Text Available A dental articulator is a mechanism which simulates the temporo-mandibular joint. The articulator is essential as it replicates the basic motions of the upper and lower mandibles, both revolve and translational motions. In the present paper the stresses from an articulator TMJ modelled as a bronze sphere into a cylindrical steel cavity are analyzed by two methods, first applying the Hertzian contact theory and then numerically, by means of finite element analysis using the simulation module in CATIA.

The Comorbidity between Attention-Deficit/Hyperactivity Disorder (ADHD in Children and Arabic Speech Sound Disorder

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Ruaa Osama Hariri

2016-04-01

Full Text Available Children with Attention-Deficiency/Hyperactive Disorder (ADHD often have co-existing learning disabilities and developmental weaknesses or delays in some areas including speech (Rief, 2005. Seeing that phonological disorders include articulation errors and other forms of speech disorders, studies pertaining to children with ADHD symptoms who demonstrate signs of phonological disorders in their native Arabic language are lacking. The purpose of this study is to provide a description of Arabic language deficits and to present a theoretical model of potential associations between phonological language deficits and ADHD. Dodd and McCormack’s (1995 four subgroups classification of speech disorder and the phonological disorders pertaining to the Arabic language provided by a Saudi Institute for Speech and Hearing are examined within the theoretical framework. Since intervention may improve articulation and focuses a child’s attention on the sound structure of words, findings in this study are based on the assumption that children with ADHD may acquire phonology for their Arabic language in the same way, and following the same developmental stages as intelligible children. Both quantitative and qualitative analyses have proven that the ADHD group analyzed in this study had indeed failed to acquire most of their Arabic consonants as they should have. Keywords: speech sound disorder, attention-deficiency/hyperactive, developmental disorder, phonological disorder, language disorder/delay, language impairment

Kinematics and Path Following Control of an Articulated Drum Roller

Science.gov (United States)

BIAN, Yongming; YANG, Meng; FANG, Xiaojun; WANG, Xiahui

2017-07-01

Automatic navigation of an articulated drum roller, which is an articulated steering type vehicle widely used in the construction industry, is highly expected for operation cost reduction and improvement of work efficiency. In order to achieve the path following control, considering that its steering system is articulated steering and two frames are articulated by an active revolute joint, a kinematic model and an error dynamic state-space equation of an articulated drum roller are proposed. Besides, a state-feedback control law based on Lyapunov stability theory is also designed, which can be proved to achieve the purpose of control by the analysis of stability. What's more, to evaluate the performance of the proposed method, simulation under the MATLAB/Simulink and experiments using positioning algorithm and errors correction at the uneven construction site are performed, with initial displacement error (-1.5 m), heading error (-0.11 rad) and steering angle (-0.19 rad). Finally, simulation and experimental results show that the errors and steering angle can decrease gradually, and converge to zero with time. Meanwhile, the control input is not saturated. An articulated drum roller can lock into a desired path with the proposed method in uneven fields.

Articulating Business Education Curricula.

Science.gov (United States)

McEwen, Beryl C.

1998-01-01

Responses from 75 of 108 business educators indicated that most students took business courses to develop both job and personal-use skills; more than 50% were college bound. A substantial overlap between skills taught in secondary and postsecondary business shows a strong possibility for curriculum articulation. (SK)

The Role of Virtual Articulator in Prosthetic and Restorative Dentistry

Science.gov (United States)

Aljanakh, Mohammad

2014-01-01

Virtual reality is a computer based technology linked with the future of dentistry and dental practice. The virtual articulator is one such application in prosthetic and restorative dentistry based on virtual reality that will significantly reduce the limitations of the mechanical articulator, and by simulation of real patient data, allow analyses with regard to static and dynamic occlusion as well as to jaw relation. It is the purpose of this article to present the concepts and strategies for a future replacement of the mechanical articulator by a virtual one. Also, a brief note on virtual reality haptic system has been highlighted along with newly developed touch enabled virtual articulator. PMID:25177664

Three-Dimensional Static Articulation Accuracy of Virtual Models-Part II: Effect of Model Scanner-CAD Systems and Articulation Method.

Science.gov (United States)

Yee, Sophia Hui Xin; Esguerra, Roxanna Jean; Chew, Amelia Anya Qin'An; Wong, Keng Mun; Tan, Keson Beng Choon

2018-02-01

Accurate maxillomandibular relationship transfer is important for CAD/CAM prostheses. This study compared the 3D-accuracy of virtual model static articulation in three laboratory scanner-CAD systems (Ceramill Map400 [AG], inEos X5 [SIR], Scanner S600 Arti [ZKN]) using two virtual articulation methods: mounted models (MO), interocclusal record (IR). The master model simulated a single crown opposing a 3-unit fixed partial denture. Reference values were obtained by measuring interarch and interocclusal reference features with a coordinate measuring machine (CMM). MO group stone casts were articulator-mounted with acrylic resin bite registrations while IR group casts were hand-articulated with poly(vinyl siloxane) bite registrations. Five test model sets were scanned and articulated virtually with each system (6 test groups, 15 data sets). STL files of the virtual models were measured with CMM software. dR R , dR C , and dR L , represented interarch global distortions at right, central, and left sides, respectively, while dR M , dX M , dY M , and dZ M represented interocclusal global and linear distortions between preparations. Mean interarch 3D distortion ranged from -348.7 to 192.2 μm for dR R , -86.3 to 44.1 μm for dR C , and -168.1 to 4.4 μm for dR L . Mean interocclusal distortion ranged from -257.2 to -85.2 μm for dR M , -285.7 to 183.9 μm for dX M , -100.5 to 114.8 μm for dY M , and -269.1 to -50.6 μm for dZ M . ANOVA showed that articulation method had significant effect on dR R and dX M , while system had a significant effect on dR R , dR C , dR L , dR M , and dZ M . There were significant differences between 6 test groups for dR R, dR L dX M , and dZ M . dR R and dX M were significantly greater in AG-IR, and this was significantly different from SIR-IR, ZKN-IR, and all MO groups. Interarch and interocclusal distances increased in MO groups, while they decreased in IR groups. AG-IR had the greatest interarch distortion as well as interocclusal superior

MyReDiary: Co-Designing for Collaborative Articulation in Physical Rehabilitation

DEFF Research Database (Denmark)

Bagalkot, Naveen L.; Sokoler, Tomas

2011-01-01

In this paper we present our exploration of co-designing for supporting a collaborative articulation of rehabilitation process. Based on our reading of key CSCW literature, we describe three facets of a collaboratively articulated rehab process: Interdependence, Distributed Process, and Interoper......In this paper we present our exploration of co-designing for supporting a collaborative articulation of rehabilitation process. Based on our reading of key CSCW literature, we describe three facets of a collaboratively articulated rehab process: Interdependence, Distributed Process......, and Interoperability. We highlight Magic-Mirror- Spiral, the design ideal guiding the co-designing of MyReDiary that is aimed to support the three facets as an example in this regard. We offer the conceptual understanding of Collaborative Articulation, the Magic-Mirror-Spiral and MyReDiary as a ‘compositional Whole...

Program Articulation: What It Is and What It Is Not.

Science.gov (United States)

Stevens, Barbara J.

1981-01-01

Discusses various elements of nursing education program articulation: politics, curriculum, core courses, philosophy, nursing theory, advantages and disadvantages of articulation, associate vs. baccalaureate degree programs, and program policies. (CT)

Technical feasibility of personalized articulating knee joint distraction for treatment of tibiofemoral osteoarthritis.

Science.gov (United States)

Struik, T; Jaspers, J E N; Besselink, N J; van Roermund, P M; Plomp, S; Rudert, M J; Lafeber, F P J G; Mastbergen, S C

2017-11-01

Knee osteoarthritis is a highly prevalent degenerative joint disorder characterized by joint tissue damage and pain. Knee joint distraction has been introduced as a joint preserving surgical procedure to postpone knee arthroplasty. An often used standard externally fixation device for distraction poses a burden to patients due to the absence of joint flexion during the 6weeks treatment. Therefore, a personalized articulating distraction device was developed. The aim of this study was to test technical feasibility of this device. Based on an often applied rigid device, using equal bone pin positions and connectors, a hinge mechanism was developed consisting of a cam-following system for reproducing the complex joint-specific knee kinematics. In support, a device was developed for capturing the joint-specific sagittal plane articulation. The obtained kinematic data were translated into joint-specific cam shapes that were installed bilaterally in the hinge mechanism of the distraction device, as such providing personalized knee motion. Distraction of 5mm was performed within a range of motion of 30deg. joint flexion. Pre-clinical evaluation of the working principle was performed on human cadaveric legs and system stiffness characteristics were biomechanically evaluated. The desired range of motion was obtained and distraction was maintained under physiologically representative loading. Moreover, the joint-specific approach demonstrated tolerance of deviations from anatomical and alignment origin during initial placement of the developed distraction device. Articulation during knee distraction is considered technically feasible and has potential to decrease burden and improve acceptance of distraction therapy. Testing of clinical feasibility is warranted. Copyright © 2017 Elsevier Ltd. All rights reserved.

Design of a stable fuzzy controller for an articulated vehicle.

Science.gov (United States)

Tanaka, K; Kosaki, T

1997-01-01

This paper presents a backward movement control of an articulated vehicle via a model-based fuzzy control technique. A nonlinear dynamic model of the articulated vehicle is represented by a Takagi-Sugeno fuzzy model. The concept of parallel distributed compensation is employed to design a fuzzy controller from the Takagi-Sugeno fuzzy model of the articulated vehicle. Stability of the designed fuzzy control system is guaranteed via Lyapunov approach. The stability conditions are characterized in terms of linear matrix inequalities since the stability analysis is reduced to a problem of finding a common Lyapunov function for a set of Lyapunov inequalities. Simulation results and experimental results show that the designed fuzzy controller effectively achieves the backward movement control of the articulated vehicle.

Anomalies of Imagination and Disordered Self in Schizophrenia Spectrum Disorders

DEFF Research Database (Denmark)

Rasmussen, Andreas Christian Rosén; Parnas, Josef

2015-01-01

Vivid mental imagery occurs frequently in schizophrenia spectrum disorders (SSDs). Overlapping phenomena, such as obsessions or ruminations, are also frequent in other psychiatric disorders, raising significant diagnostic challenges. Unfortunately, contemporary operational psychopathology lacks...... the epistemological and phenomenological framework to address such questions. Using the resources of phenomenology and philosophy of mind, we articulate the structure of imagination and describe its distinctive modifications in the SSDs. Drawing on pilot data with patients' self-descriptions, we present the notion...

Phonological Awareness Training with Articulation Promotes Early Reading Development

Science.gov (United States)

Fälth, Linda; Gustafson, S.; Svensson, I.

2017-01-01

In a longitudinal intervention study, the effects of phonological training with articulation for children in a preschool class were analyzed. In total, 69 students participated, divided into an experimental group of 39 and a comparison group of 30 students. The intervention consisted of phonological training with articulation and lasted throughout…

EXPERIMENTAL EVALUATION OF ARTICULATED WHEELED VEHICLES POSITION STABILITY

Directory of Open Access Journals (Sweden)

Ye. Dubinin

2015-07-01

Full Text Available With introducing a mobile measurement system with linear acceleration sensors there was experimentally determined the parameter of position stability of the articulated wheeled vehicle on the example of HTA-200 «Slobozhanets». It was determined that the position stability was provided within the entire range of operating speeds and accelerations. The obtained results can be used to enhance the traffic safety of articulated vehicles.

The Landscape of Mass Mediated Articulations of Biotechnology

DEFF Research Database (Denmark)

Horst, Maja

The objective of this paper is to explore the associations made in mass mediatedarticulations of biotechnology. It serves as the basis for further analyses of massmediated controversies and the purpose is to establish a map of the landscape ofmass mediated articulation of biotechnology. Which kinds...... of genetic researchand technology are articulated in what way? What can be associated to what inthe mass mediation and when is it portrayed as controversial? In short this is astudy of associations in the news production that serves as a way of establishingan empirical archive for further work. It is based...... on a relational ontologyinspired by French philosopher Bruno Latour, supplemented with the method ofcontent analysis developed within sociology of mass media. The aim is to studythe production of networks of articulation in mass media by looking at theoutcome (the articles), which they produce....

Facilitated Articulation of Implicit Knowledge in Textile Design

DEFF Research Database (Denmark)

Bang, Anne Louise

2009-01-01

This is a report from an ongoing research project and as such it is work in progress. The paper proposes an exploratory approach in order to enable end-users to contribute with their experiences of emotional values of fabrics in use. It is suggested that the textile designer with her repertoire...... of (experiential, implicit and tacit) textile design knowledge should facilitate the articulation process. The paper specifically draws on a series of workshops conducted within the collaborating company inviting all employees to participate. The series of workshops were based on a game-like setting and introduced...... - being a textile designer herself, who functioned as the facilitator. This paper uses two examples from the series of workshops to exemplify a facilitated articulation of implicit knowledge in textile design. From the examples the following themes are synthesised as being important for articulation...

Evaluation of articulation of Turkish phonemes after removable partial denture application

Directory of Open Access Journals (Sweden)

Özbeki Murat

2003-01-01

Full Text Available In this study, the adaptation of patients to removable partial dentures was evaluated related to articulation of Turkish phonemes. Articulation of /t,d,n,l,r/, /g,k/, /b,p,m/ and /s,z,Õ,v,f,y,j,h,c/ phonemes were evaluated by three speech pathologists, on records taken from 15 patients before the insertion of a removable partial denture, just after insertion, and one week later. The test consisted of evaluation of phoneme articulation of independent syllables in terms of distortion, omission, substitution, mass effect, hypernasality and hyponasality. Data were evaluated with Cochrane Q, McNemar and Kruskal-Wallis tests. The results showed that for some phonemes, problems in articulation occurred after the insertion of a removable partial denture while for others a significant amelioration was observed after the insertion of a removable partial denture. In general, problems in articulation of evaluated phonemes were resolved after one week of use.

Planar articulated mechanism design by graph theoretical enumeration

DEFF Research Database (Denmark)

Kawamoto, A; Bendsøe, Martin P.; Sigmund, Ole

2004-01-01

This paper deals with design of articulated mechanisms using a truss-based ground-structure representation. By applying a graph theoretical enumeration approach we can perform an exhaustive analysis of all possible topologies for a test example for which we seek a symmetric mechanism. This guaran....... This guarantees that one can identify the global optimum solution. The result underlines the importance of mechanism topology and gives insight into the issues specific to articulated mechanism designs compared to compliant mechanism designs....

High Re-Operation Rates Using Conserve Metal-On-Metal Total Hip Articulations

DEFF Research Database (Denmark)

Mogensen, S L; Jakobsen, Thomas; Christoffersen, Hardy

2016-01-01

INTRODUCTION: Metal-on-metal hip articulations have been intensely debated after reports of adverse reactions and high failure rates. The aim of this study was to retrospectively evaluate the implant of a metal-on.metal total hip articulation (MOM THA) from a single manufacture in a two-center st......INTRODUCTION: Metal-on-metal hip articulations have been intensely debated after reports of adverse reactions and high failure rates. The aim of this study was to retrospectively evaluate the implant of a metal-on.metal total hip articulation (MOM THA) from a single manufacture in a two...

Dealing with Phrase Level Co-Articulation (PLC) in speech recognition: a first approach

NARCIS (Netherlands)

Ordelman, Roeland J.F.; van Hessen, Adrianus J.; van Leeuwen, David A.; Robinson, Tony; Renals, Steve

1999-01-01

Whereas nowadays within-word co-articulation effects are usually sufficiently dealt with in automatic speech recognition, this is not always the case with phrase level co-articulation effects (PLC). This paper describes a first approach in dealing with phrase level co-articulation by applying these

The (in)dependence of articulation and lexical planning during isolated word production.

Science.gov (United States)

Buz, Esteban; Jaeger, T Florian

The number of phonological neighbors to a word (PND) can affect its lexical planning and pronunciation. Similar parallel effects on planning and articulation have been observed for other lexical variables, such as a word's contextual predictability. Such parallelism is frequently taken to indicate that effects on articulation are mediated by effects on the time course of lexical planning. We test this mediation assumption for PND and find it unsupported. In a picture naming experiment, we measure speech onset latencies (planning), word durations, and vowel dispersion (articulation). We find that PND predicts both latencies and durations. Further, latencies predict durations. However, the effects of PND and latency on duration are independent: parallel effects do not imply mediation. We discuss the consequences for accounts of lexical planning, articulation, and the link between them. In particular, our results suggest that ease of planning does not explain effects of PND on articulation.

Information Transfer Capacity of Articulators in American Sign Language.

Science.gov (United States)

Malaia, Evie; Borneman, Joshua D; Wilbur, Ronnie B

2018-03-01

The ability to convey information is a fundamental property of communicative signals. For sign languages, which are overtly produced with multiple, completely visible articulators, the question arises as to how the various channels co-ordinate and interact with each other. We analyze motion capture data of American Sign Language (ASL) narratives, and show that the capacity of information throughput, mathematically defined, is highest on the dominant hand (DH). We further demonstrate that information transfer capacity is also significant for the non-dominant hand (NDH), and the head channel too, as compared to control channels (ankles). We discuss both redundancy and independence in articulator motion in sign language, and argue that the NDH and the head articulators contribute to the overall information transfer capacity, indicating that they are neither completely redundant to, nor completely independent of, the DH.

Demanding Dynamics - Demand articulation of intermediary organisations in emerging pharmaceutical innovations

NARCIS (Netherlands)

Boon, W.P.C.

2008-01-01

User involvement in emerging technological fields is carried by so-called demand articulation processes. These demand articulation processes are interactive learning processes in which stakeholders try to address what they perceive as important characteristics of, and to unravel preferences for an

Lip-Synching Using Speaker-Specific Articulation, Shape and Appearance Models

Directory of Open Access Journals (Sweden)

Gaspard Breton

2009-01-01

Full Text Available We describe here the control, shape and appearance models that are built using an original photogrammetric method to capture characteristics of speaker-specific facial articulation, anatomy, and texture. Two original contributions are put forward here: the trainable trajectory formation model that predicts articulatory trajectories of a talking face from phonetic input and the texture model that computes a texture for each 3D facial shape according to articulation. Using motion capture data from different speakers and module-specific evaluation procedures, we show here that this cloning system restores detailed idiosyncrasies and the global coherence of visible articulation. Results of a subjective evaluation of the global system with competing trajectory formation models are further presented and commented.

Accuracy of two face-bow/semi-adjustable articulator systems in transferring the maxillary occlusal cant.

Science.gov (United States)

Nazir, Nazia; Sujesh, M; Kumar, Ravi; Sreenivas, P

2012-01-01

The precision of an arbitrary face-bow in accurately transferring the orientation of the maxillary cast to the articulator has been questioned because the maxillary cast is mounted in relation to arbitrary measurements and anatomic landmarks that vary among individuals. This study was intended to evaluate the sagittal inclination of mounted maxillary casts on two semi-adjustable articulator/face-bow systems in comparison to the occlusal cant on lateral cephalograms. Maxillary casts were mounted on the Hanau and Girrbach semi-adjustable articulators following face-bow transfer with their respective face-bows. The sagittal inclination of these casts was measured in relation to the fixed horizontal reference plane using physical measurements. Occlusal cant was measured on lateral cephalograms. SPSS software (version 11.0, Chicago, IL, USA) was used for statistical analysis. Repeated measures analysis of variance and Tukey's tests were used to evaluate the results (P occlusal cant on the articulators and cephalogram revealed statistically significant differences. Occlusal plane was steeper on Girrbach Artex articulator in comparison to the Hanau articulator. Within the limitations of this study, it was found that the sagittal inclination of the mounted maxillary cast achieved with Hanau articulator was closer to the cephalometric occlusal cant as compared to that of the Girrbach articulator. Among the two articulators and face-bow systems, the steepness of sagittal inclination was greater on Girrbach semi-adjustable articulator. Different face-bow/articulator systems could result in different orientation of the maxillary cast, resulting in variation in stability, cuspal inclines and cuspal heights.

Scan-based volume animation driven by locally adaptive articulated registrations.

Science.gov (United States)

Rhee, Taehyun; Lewis, J P; Neumann, Ulrich; Nayak, Krishna S

2011-03-01

This paper describes a complete system to create anatomically accurate example-based volume deformation and animation of articulated body regions, starting from multiple in vivo volume scans of a specific individual. In order to solve the correspondence problem across volume scans, a template volume is registered to each sample. The wide range of pose variations is first approximated by volume blend deformation (VBD), providing proper initialization of the articulated subject in different poses. A novel registration method is presented to efficiently reduce the computation cost while avoiding strong local minima inherent in complex articulated body volume registration. The algorithm highly constrains the degrees of freedom and search space involved in the nonlinear optimization, using hierarchical volume structures and locally constrained deformation based on the biharmonic clamped spline. Our registration step establishes a correspondence across scans, allowing a data-driven deformation approach in the volume domain. The results provide an occlusion-free person-specific 3D human body model, asymptotically accurate inner tissue deformations, and realistic volume animation of articulated movements driven by standard joint control estimated from the actual skeleton. Our approach also addresses the practical issues arising in using scans from living subjects. The robustness of our algorithms is tested by their applications on the hand, probably the most complex articulated region in the body, and the knee, a frequent subject area for medical imaging due to injuries. © 2011 IEEE

Genetic algorithm trajectory plan optimization for EAMA: EAST Articulated Maintenance Arm

Energy Technology Data Exchange (ETDEWEB)

Wu, Jing, E-mail: wujing@ipp.ac.cn [Institute of Plasma Physics, Chinese Academy of Sciences, 350 Shushanhu Rd., Hefei, Anhui (China); Lappeenranta University of Technology, Skinnarilankatu 34, Lappeenranta (Finland); Wu, Huapeng [Lappeenranta University of Technology, Skinnarilankatu 34, Lappeenranta (Finland); Song, Yuntao; Cheng, Yong; Zhao, Wenglong [Institute of Plasma Physics, Chinese Academy of Sciences, 350 Shushanhu Rd., Hefei, Anhui (China); Wang, Yongbo [Lappeenranta University of Technology, Skinnarilankatu 34, Lappeenranta (Finland)

2016-11-01

Highlights: • A redundant 10-DOF serial-articulated robot for EAST assembly and maintains is presented. • A trajectory optimization algorithm of the robot is developed. • A minimum jerk objective is presented to suppress machining vibration of the robot. - Abstract: EAMA (EAST Articulated Maintenance Arm) is an articulated serial manipulator with 7 degrees of freedom (DOF) articulated arm followed by 3-DOF gripper, total length is 8.867 m, works in experimental advanced superconductor tokamak (EAST) vacuum vessel (VV) to perform blanket inspection and remote maintenance tasks. This paper presents a trajectory optimization method which aims to pursue the 7-DOF articulated arm a stable movement, which keeps the mounted inspection camera anti-vibration. Based on dynamics analysis, trajectory optimization algorithm adopts multi-order polynomial interpolation in joint space and high order geometry Jacobian transform. The object of optimization algorithm is to suppress end-effector movement vibration by minimizing jerk RMS (root mean square) value. The proposed solution has such characteristics which can satisfy kinematic constraints of EAMA’s motion and ensure the arm running under the absolute values of velocity, acceleration and jerk boundaries. GA (genetic algorithm) is employed to find global and robust solution for this problem.

Accuracy of two face-bow/semi-adjustable articulator systems in transferring the maxillary occlusal cant

Directory of Open Access Journals (Sweden)

Nazia Nazir

2012-01-01

Full Text Available Context: The precision of an arbitrary face-bow in accurately transferring the orientation of the maxillary cast to the articulator has been questioned because the maxillary cast is mounted in relation to arbitrary measurements and anatomic landmarks that vary among individuals. Aim: This study was intended to evaluate the sagittal inclination of mounted maxillary casts on two semi-adjustable articulator/face-bow systems in comparison to the occlusal cant on lateral cephalograms. Materials and Methods: Maxillary casts were mounted on the Hanau and Girrbach semi-adjustable articulators following face-bow transfer with their respective face-bows. The sagittal inclination of these casts was measured in relation to the fixed horizontal reference plane using physical measurements. Occlusal cant was measured on lateral cephalograms. SPSS software (version 11.0, Chicago, IL, USA was used for statistical analysis. Repeated measures analysis of variance and Tukey′s tests were used to evaluate the results (P < 0.05. Results: Comparison of the occlusal cant on the articulators and cephalogram revealed statistically significant differences. Occlusal plane was steeper on Girrbach Artex articulator in comparison to the Hanau articulator. Conclusion: Within the limitations of this study, it was found that the sagittal inclination of the mounted maxillary cast achieved with Hanau articulator was closer to the cephalometric occlusal cant as compared to that of the Girrbach articulator. Among the two articulators and face-bow systems, the steepness of sagittal inclination was greater on Girrbach semi-adjustable articulator. Different face-bow/articulator systems could result in different orientation of the maxillary cast, resulting in variation in stability, cuspal inclines and cuspal heights.

Prevalence of Speech Disorders in Arak Primary School Students, 2014-2015

Directory of Open Access Journals (Sweden)

Abdoreza Yavari

2016-09-01

Full Text Available Abstract Background: The speech disorders may produce irreparable damage to childs speech and language development in the psychosocial view. The voice, speech sound production and fluency disorders are speech disorders, that may result from delay or impairment in speech motor control mechanism, central neuron system disorders, improper language stimulation or voice abuse. Materials and Methods: This study examined the prevalence of speech disorders in 1393 Arakian students at 1 to 6th grades of primary school. After collecting continuous speech samples, picture description, passage reading and phonetic test, we recorded the pathological signs of stuttering, articulation disorder and voice disorders in a special sheet. Results: The prevalence of articulation, voice and stuttering disorders was 8%, 3.5% and%1 and the prevalence of speech disorders was 11.9%. The prevalence of speech disorders was decreasing with increasing of student’s grade. 12.2% of boy students and 11.7% of girl students of primary school in Arak had speech disorders. Conclusion: The prevalence of speech disorders of primary school students in Arak is similar to the prevalence of speech disorders in Kermanshah, but the prevalence of speech disorders in this research is smaller than many similar researches in Iran. It seems that racial and cultural diversity has some effect on increasing the prevalence of speech disorders in Arak city.

From Mozart to MIDI : A Rule System for Expressive Articulation

OpenAIRE

Hähnel, Tilo

2010-01-01

The propriety of articulation, especially of notes that lackannotations, is influenced by the origin of the particularmusic. This paper presents a rule system for articulationderived from late Baroque and early Classic treatises on performance. Expressive articulation, in this respect, is understood as a combination of alterable tone features like duration, loudness, and timbre. The model differentiates globalcharacteristics and local particularities, provides a generalframework for human-lik...

A Novel Methodology to Validate the Accuracy of Extraoral Dental Scanners and Digital Articulation Systems.

Science.gov (United States)

Ellakwa, A; Elnajar, S; Littlefair, D; Sara, G

2018-05-03

The aim of the current study is to develop a novel method to investigate the accuracy of 3D scanners and digital articulation systems. An upper and a lower poured stone model were created by taking impression of fully dentate male (fifty years old) participant. Titanium spheres were added to the models to allow for an easily recognisable geometric shape for measurement after scanning and digital articulation. Measurements were obtained using a Coordinate Measuring Machine to record volumetric error, articulation error and clinical effect error. Three scanners were compared, including the Imetric 3D iScan d104i, Shining 3D AutoScan-DS100 and 3Shape D800, as well as their respective digital articulation software packages. Stoneglass Industries PDC digital articulation system was also applied to the Imetric scans for comparison with the CMM measurements. All the scans displayed low volumetric error (p⟩0.05), indicating that the scanners themselves had a minor contribution to the articulation and clinical effect errors. The PDC digital articulation system was found to deliver the lowest average errors, with good repeatability of results. The new measuring technique in the current study was able to assess the scanning and articulation accuracy of the four systems investigated. The PDC digital articulation system using Imetric scans was recommended as it displayed the lowest articulation error and clinical effect error with good repeatability. The low errors from the PDC system may have been due to its use of a 3D axis for alignment rather than the use of a best fit. Copyright© 2018 Dennis Barber Ltd.

Generation of Articulated Mechanisms by Optimization Techniques

DEFF Research Database (Denmark)

Kawamoto, Atsushi

2004-01-01

optimization [Paper 2] 3. Branch and bound global optimization [Paper 3] 4. Path-generation problems [Paper 4] In terms of the objective of the articulated mechanism design problems, the first to third papers deal with maximization of output displacement, while the fourth paper solves prescribed path...... generation problems. From a mathematical programming point of view, the methods proposed in the first and third papers are categorized as deterministic global optimization, while those of the second and fourth papers are categorized as gradient-based local optimization. With respect to design variables, only...... directly affects the result of the associated sensitivity analysis. Another critical issue for mechanism design is the concept of mechanical degrees of freedom and this should be also considered for obtaining a proper articulated mechanism. The thesis treats this inherently discrete criterion in some...

Articulation Workshop in Drafting. Final Report.

Science.gov (United States)

Catonsville Community Coll., MD.

Drafting students from vocational/technical and high schools frequently repeat the same experiences and courses and work with the same instructional materials when they enroll in college engineering drawing, and architecture programs. In order to minimize needless repetition and address the problem of articulation between such schools and the…

Swisstrolley 3 - An articulated trolley bus; SWISSTROLLEY 3. Gelenktrolleybus

Energy Technology Data Exchange (ETDEWEB)

Gisler, H.-J.

2006-07-01

This illustrated final report for the Swiss Federal Office of Energy (SFOE) takes a look at the Swisstrolley 3 low-floor, articulated trolley bus developed in Switzerland by the Hess AG company. Various features of the variants of the trolley bus, including single vehicle, single and double-articulated buses and bus trailers, are discussed. The reductions achieved in energy consumption, weight and noise are discussed. Typical values for power consumption are presented in graphical form. Economic viability and passenger-friendliness are examined, as are possibilities for further improvement.

Articulation of tacit and complex knowledge

DEFF Research Database (Denmark)

Kristiansen, Per; Hansen, Poul H. Kyvsgård; Nielsen, Louise Møller

2009-01-01

The paper focuses on the articulation of tacit and complex knowledge by taking outset in a specific methodology: LEGO® SERIOUS PLAYTM. In order to expand the methodology and to develop it further we propose to regard it as a language. By choosing a language view we are able to ably a language...

Longitudinal follow-up to evaluate speech disorders in early-treated patients with infantile-onset Pompe disease.

Science.gov (United States)

Zeng, Yin-Ting; Hwu, Wuh-Liang; Torng, Pao-Chuan; Lee, Ni-Chung; Shieh, Jeng-Yi; Lu, Lu; Chien, Yin-Hsiu

2017-05-01

Patients with infantile-onset Pompe disease (IOPD) can be treated by recombinant human acid alpha glucosidase (rhGAA) replacement beginning at birth with excellent survival rates, but they still commonly present with speech disorders. This study investigated the progress of speech disorders in these early-treated patients and ascertained the relationship with treatments. Speech disorders, including hypernasal resonance, articulation disorders, and speech intelligibility, were scored by speech-language pathologists using auditory perception in seven early-treated patients over a period of 6 years. Statistical analysis of the first and last evaluations of the patients was performed with the Wilcoxon signed-rank test. A total of 29 speech samples were analyzed. All the patients suffered from hypernasality, articulation disorder, and impairment in speech intelligibility at the age of 3 years. The conditions were stable, and 2 patients developed normal or near normal speech during follow-up. Speech therapy and a high dose of rhGAA appeared to improve articulation in 6 of the 7 patients (86%, p = 0.028) by decreasing the omission of consonants, which consequently increased speech intelligibility (p = 0.041). Severity of hypernasality greatly reduced only in 2 patients (29%, p = 0.131). Speech disorders were common even in early and successfully treated patients with IOPD; however, aggressive speech therapy and high-dose rhGAA could improve their speech disorders. Copyright © 2016 European Paediatric Neurology Society. Published by Elsevier Ltd. All rights reserved.

Articulation Skills in Spanish-Speaking Children.

Science.gov (United States)

Linares, Thomas A.

The purpose of the research was to develop an articulation test for Spanish-speakers and to field-test the instrument in both a monolingual Spanish-speaking environment and a bilingual Spanish/English environment. Such a test is needed because there has been little available to enable the diagnostician, whose clientele includes Spanish-speakers,…

Computer Animation for Articulated 3D Characters

NARCIS (Netherlands)

Kiss, S.

2002-01-01

We present a review of the computer animation literature, mainly concentrating on articulated characters and at least some degree of interactivity or real time simulation. Advances in dierent techniques such as key-frame, motion capture (also known as mocap), dynamics, inverse kinematics (IK),

Experimental Engineering: Articulating and Valuing Design Experimentation

DEFF Research Database (Denmark)

Vallgårda, Anna; Grönvall, Erik; Fritsch, Jonas

2017-01-01

In this paper we propose Experimental Engineering as a way to articulate open- ended technological experiments as a legitimate design research practice. Experimental Engineering introduces a move away from an outcome or result driven design process towards an interest in existing technologies and...

The Prevalence of Speech and Language Disorders in French-Speaking Preschool Children From Yaoundé (Cameroon).

Science.gov (United States)

Tchoungui Oyono, Lilly; Pascoe, Michelle; Singh, Shajila

2018-05-17

The purpose of this study was to determine the prevalence of speech and language disorders in French-speaking preschool-age children in Yaoundé, the capital city of Cameroon. A total of 460 participants aged 3-5 years were recruited from the 7 communes of Yaoundé using a 2-stage cluster sampling method. Speech and language assessment was undertaken using a standardized speech and language test, the Evaluation du Langage Oral (Khomsi, 2001), which was purposefully renormed on the sample. A predetermined cutoff of 2 SDs below the normative mean was applied to identify articulation, expressive language, and receptive language disorders. Fluency and voice disorders were identified using clinical judgment by a speech-language pathologist. Overall prevalence was calculated as follows: speech disorders, 14.7%; language disorders, 4.3%; and speech and language disorders, 17.1%. In terms of disorders, prevalence findings were as follows: articulation disorders, 3.6%; expressive language disorders, 1.3%; receptive language disorders, 3%; fluency disorders, 8.4%; and voice disorders, 3.6%. Prevalence figures are higher than those reported for other countries and emphasize the urgent need to develop speech and language services for the Cameroonian population.

Re/membering: articulating cultural identity in Philippine fiction in English

OpenAIRE

Martin, Jocelyn S.

2010-01-01

This dissertation examines how Philippine (or Filipino) authors emphasise the need for articulating or “re/membering” cultural identity. The researcher mainly draws from the theory of Caribbean critic, Stuart Hall, who views cultural identity as an articulation which allows “the fragmented, decentred human agent” to be considered as one who is both “subject-ed” by power but/and one who is capable of acting against those powers (Grossberg 1996 [1986]: 157, emphasis mine). Applied to the Philip...

Effects of Articulation Styles on Perception of Modulated Tempos in Violin Excerpts

Science.gov (United States)

Geringer, John M.; Madsen, Clifford K.; Macleod, Rebecca B.

2007-01-01

We investigated effects of legato, staccato and pizzicato articulation styles on the perception of modulated tempos. Seventy-two music majors served as participants. Two solo violin excerpts were chosen with contrasting rhythmic rates and were recorded in all three articulation styles. Examples were presented to listeners in three conditions of…

Procedure of Sauve-Kapandji modified for posttraumatic and degenerative disorders of the radioulnar distal articulation

International Nuclear Information System (INIS)

Rodriguez B, Nestor Julian; Suarez Romero, Fabio; Bocanegra Navia, Sergio; Garcia Herrera, Alvaro

2005-01-01

This is observational prospective study type series of cases that shows the experience of the group of surgery of hand of the Central Military Hospital between January of 1998 and Julio the 2003. 65 patients were included like surgery of salvage of the articulation radioulnar distal in different traumatic and degenerative pathologies, comparing the results with those published in the world literature. According to the modified functional scale of May this procedure showed excellent and good results in 90% of the patients. They recovered the lost function and improved the function of the distal radioulnar joint, returning to their activities of the daily life. This technique is recommended as a sure and efficient procedure, because the patients present a remarkable improvement in its quality of life and they can return to its labor activity, these results correlated with the results of the published literature

Gender recognition from unconstrained and articulated human body.

Science.gov (United States)

Wu, Qin; Guo, Guodong

2014-01-01

Gender recognition has many useful applications, ranging from business intelligence to image search and social activity analysis. Traditional research on gender recognition focuses on face images in a constrained environment. This paper proposes a method for gender recognition in articulated human body images acquired from an unconstrained environment in the real world. A systematic study of some critical issues in body-based gender recognition, such as which body parts are informative, how many body parts are needed to combine together, and what representations are good for articulated body-based gender recognition, is also presented. This paper also pursues data fusion schemes and efficient feature dimensionality reduction based on the partial least squares estimation. Extensive experiments are performed on two unconstrained databases which have not been explored before for gender recognition.

Gender Recognition from Unconstrained and Articulated Human Body

Science.gov (United States)

Wu, Qin; Guo, Guodong

2014-01-01

Gender recognition has many useful applications, ranging from business intelligence to image search and social activity analysis. Traditional research on gender recognition focuses on face images in a constrained environment. This paper proposes a method for gender recognition in articulated human body images acquired from an unconstrained environment in the real world. A systematic study of some critical issues in body-based gender recognition, such as which body parts are informative, how many body parts are needed to combine together, and what representations are good for articulated body-based gender recognition, is also presented. This paper also pursues data fusion schemes and efficient feature dimensionality reduction based on the partial least squares estimation. Extensive experiments are performed on two unconstrained databases which have not been explored before for gender recognition. PMID:24977203

Early Onset Bipolar Disorder: Clinical and Research Considerations

Science.gov (United States)

Carlson, Gabrielle A.

2005-01-01

This article examined some of the reasons for confusion and controversy surrounding the frequency of diagnosis of bipolar disorder, especially in prepubertal children. Four case vignettes are used to articulate questions surrounding manifestations of euphoria and grandiosity, informant variance, diagnostic implications of medication-induced…

How to Be a Pervert: A Modest Philosophical Critique of the Diagnostic and Statistical Manual of Mental Disorders

Directory of Open Access Journals (Sweden)

Patrick Singy

2012-08-01

Full Text Available This paper is divided into three parts. I begin with a short history of the way American psychiatrists have defined mental disorder in general, and paraphilias (sexual perversions in particular, from the 1950s to 2013. I look at how the different editions of the Diagnostic and Statistical Manual of Mental Disorders (DSM have articulated (or in the case of the future DSM-5, will articulate the distinction between health and disease. In the second part I suggest how psychiatrists might want to modify their approach to the definition of mental disorder. In the third part I explain why the paraphilias in particular should be removed from the current psychiatric classification of diseases.

Direct and indirect measures of speech articulator motions using low power EM sensors

International Nuclear Information System (INIS)

Barnes, T; Burnett, G; Gable, T; Holzrichter, J F; Ng, L

1999-01-01

Low power Electromagnetic (EM) Wave sensors can measure general properties of human speech articulator motions, as speech is produced. See Holzrichter, Burnett, Ng, and Lea, J.Acoust.Soc.Am. 103 (1) 622 (1998). Experiments have demonstrated extremely accurate pitch measurements ( and lt; 1 Hz per pitch cycle) and accurate onset of voiced speech. Recent measurements of pressure-induced tracheal motions enable very good spectra and amplitude estimates of a voiced excitation function. The use of the measured excitation functions and pitch synchronous processing enable the determination of each pitch cycle of an accurate transfer function and, indirectly, of the corresponding articulator motions. In addition, direct measurements have been made of EM wave reflections from articulator interfaces, including jaw, tongue, and palate, simultaneously with acoustic and glottal open/close signals. While several types of EM sensors are suitable for speech articulator measurements, the homodyne sensor has been found to provide good spatial and temporal resolution for several applications

Articulating cultures: socio-cultural experiences of black female ...

African Journals Online (AJOL)

Articulating cultures: socio-cultural experiences of black female immigrant students in South African schools 1. ... Gender and Behaviour ... and worrisome issue is that of the erosion of the social and cultural mores of Black3 immigrant students.

Ties That Bind: Default, Accreditation, and Articulation.

Science.gov (United States)

Prager, Carolyn

1995-01-01

Examines changes in the accreditation environment and the resulting implications for the articulation of students from for-profit to not-for-profit institutions such as community colleges. Indicates that the costs of programmatic redundancy and duplication brought about by mission convergence at these institutions will emerge as a major policy…

Perceptual Articulation in Three Middle Eastern Culture

Science.gov (United States)

Amir, Yehuda

1975-01-01

Noting that one would expect that members of cultural groups whose modes of child rearing foster individual autonomy would achieve more articulated perceptual functioning rather than persons reared in societies where conformity and emotional dependence are stressed, this article discusses a study which compared two Israeli sub-groups and two…

The School and the Articulation of Values.

Science.gov (United States)

Lovin, Robin W.

1988-01-01

Value neutrality and values clarification fail to foster critical thinking about values. The values articulation approach identifies the rationality that is applied to value claims. It avoids noncognitivism and moral relativism and suggests ways the discussion of values in the classroom prepares students to deal with broader moral issues. (VM)

Open software architecture for east articulated maintenance arm

International Nuclear Information System (INIS)

Wu, Jing; Wu, Huapeng; Song, Yuntao; Li, Ming; Yang, Yang; Alcina, Daniel A.M.

2016-01-01

Highlights: • A software requirement of serial-articulated robot for EAST assembly and maintains is presented. • A open software architecture of the robot is developed. • A component-based model distribution system with real-time communication of the robot is constructed. - Abstract: For the inside inspection and the maintenance of vacuum vessel in the EAST, an articulated maintenance arm is developed. In this article, an open software architecture developed for the EAST articulated maintenance arm (EAMA) is described, which offers a robust and proper performance and easy-going experience based on standard open robotic platform OROCOS. The paper presents a component-based model software architecture using multi-layer structure: end layer, up layer, middle, and down layer. In the end layer the components are defined off-line in the task planner manner. The components in up layer complete the function of trajectory plan. The CORBA, as a communication framework, is adopted to exchange the data between the distributed components. The contributors use Real-Time Workshop from the MATLAB/Simulink to generate the components in the middle layer. Real-time Toolkit guarantees control applications running in the hard real-time mode. Ethernets and the CAN bus are used for data transfer in the down layer, where the components implement the hardware functions. The distributed architecture of control system associates each processing node with each joint, which is mapped to a component with all functioning features of the framework.

Open software architecture for east articulated maintenance arm

Energy Technology Data Exchange (ETDEWEB)

Wu, Jing, E-mail: wujing@ipp.ac.cn [Institute of Plasma Physics Chinese Academy of Sciences, 350 Shushanhu Rd Hefei Anhui (China); Lappeenranta University of Technology, Skinnarilankatu 34 Lappeenranta (Finland); Wu, Huapeng [Lappeenranta University of Technology, Skinnarilankatu 34 Lappeenranta (Finland); Song, Yuntao [Institute of Plasma Physics Chinese Academy of Sciences, 350 Shushanhu Rd Hefei Anhui (China); Li, Ming [Lappeenranta University of Technology, Skinnarilankatu 34 Lappeenranta (Finland); Yang, Yang [Institute of Plasma Physics Chinese Academy of Sciences, 350 Shushanhu Rd Hefei Anhui (China); Alcina, Daniel A.M. [Lappeenranta University of Technology, Skinnarilankatu 34 Lappeenranta (Finland)

2016-11-01

Highlights: • A software requirement of serial-articulated robot for EAST assembly and maintains is presented. • A open software architecture of the robot is developed. • A component-based model distribution system with real-time communication of the robot is constructed. - Abstract: For the inside inspection and the maintenance of vacuum vessel in the EAST, an articulated maintenance arm is developed. In this article, an open software architecture developed for the EAST articulated maintenance arm (EAMA) is described, which offers a robust and proper performance and easy-going experience based on standard open robotic platform OROCOS. The paper presents a component-based model software architecture using multi-layer structure: end layer, up layer, middle, and down layer. In the end layer the components are defined off-line in the task planner manner. The components in up layer complete the function of trajectory plan. The CORBA, as a communication framework, is adopted to exchange the data between the distributed components. The contributors use Real-Time Workshop from the MATLAB/Simulink to generate the components in the middle layer. Real-time Toolkit guarantees control applications running in the hard real-time mode. Ethernets and the CAN bus are used for data transfer in the down layer, where the components implement the hardware functions. The distributed architecture of control system associates each processing node with each joint, which is mapped to a component with all functioning features of the framework.

Analysing co-articulation using frame-based feature trajectories

CSIR Research Space (South Africa)

Badenhorst, J

2010-11-01

Full Text Available The authors investigate several approaches aimed at a more detailed understanding of co-articulation in spoken utterances. They find that the Euclidean difference between instantaneous frame-based feature values and the mean values of these features...

SPEECH DISORDERS IN PRIMARY SCHOOL STUDENTS OF ISFAHAN (1998-9

Directory of Open Access Journals (Sweden)

B SHAFIEI

2002-06-01

Full Text Available Introduction. The aim of this study was to describe frequency of speech disorders in primary school students.
Methods. In a cross-sectional study 300 first and second grade primary school students were examined for speech disorders.
Results. From 300 subjects, 280 were normal (without speech disorders, 15 had articulation disorders, 2 had voice disorders, 3 had resonance disorders and no one had fluency disorders.
Discussion. The findings of this study are supported by fomer study in other countries, except frequency of fluency disorders which may due to low sample size of present study.

Articulating Material Criteria

DEFF Research Database (Denmark)

Hasling, Karen Marie

2013-01-01

, imitate and articulate the students’ inclusion of materials. This paper particularly discusses the experiences made and ideas generated after the execution of a material science course for second year students, with emphasis on the concept of the material selection matrix as an educational tool......This paper discusses the experiences and potentials with materials teaching at the Institute for Product Design at Kolding School of Design, using materials teaching as experiments in my PhD project. The project intents to create a stronger material awareness among product design students...... with emphasis on sustainability. The experiments aim to develop an understanding of, how product design students include materials in their design practice and how tools can be developed that further enhance this. Hence experiments are essential for the progress of the PhD project as they help to observe...

From intricate to integrated : Biofabrication of articulating joints

NARCIS (Netherlands)

Groen, Wilhelmina Margaretha; Diloksumpan, Paweena; van Weeren, Paul René; Levato, Riccardo; Malda, Jos

2017-01-01

Articulating joints owe their function to the specialized architecture and the complex interplay between multiple tissues including cartilage, bone and synovium. Especially the cartilage component has limited self-healing capacity and damage often leads to the onset of osteoarthritis, eventually

Cerec omnicam and the virtual articulator--a case report.

Science.gov (United States)

Fritzsche, G

2013-01-01

This case report demonstrates how two opposing teeth were restored with full crowns using Cerec software version 4.2 (pre-release version). In addition, an anterior tooth was provided with a veneer. The situation was scanned with the Cerec Omnicam. The new virtual articulator was used for the design to obtain correct dynamic contacts. The Cerec Omnicam can scan the entire situation prior to preparation without the help of an assistant, as no surface pretreatment is necessary. The locations of the occlusal contacts can be marked with articulating paper and are indicated on the virtual models. Selective deletion of individual areas allows the prepared teeth to be rescanned, considerably speeding up the workflow. A video demonstration is available of the acquisition and design procedure.

Sectoral demand articulation : The case of emerging sensor technologies in the drinking water sector

NARCIS (Netherlands)

te Kulve, Haico; Konrad, Kornelia Elke

Demand articulation plays a central role in innovation processes as it reduces uncertainties for innovating firms and offers guidance in innovation processes. Studies into demand articulation processes have mostly focused on users and user-producer interactions and paid less attention to the role of

Warm-Up Effect in Panelist-Articulated-2-Alternative Forced Choice Test.

Science.gov (United States)

Bloom, David J; Baik, Hwa-Young; Lee, Soo-Yeun

2018-01-01

Panelist performance in discrimination tests has been shown to increase when warm-up samples are provided prior to the actual test. Samples are used prior to the actual test for the attribute articulation process of a panelist-articulated-2-alternative forced choice (PA-2-AFC) procedure; however, it is yet unknown if the pretest articulation phase adds to the power of this testing method as with the warm-up. The goal of the study was to determine if a "warm-up" effect was displayed in the PA-2-AFC test resulting in greater power compared to the researcher-designated-2-AFC (RD-2-AFC) test. A RD-2-AFC test, with and without warm-up samples, and a PA-2-AFC test were performed by 61 panelists. A reduced calorie, citrus-flavored, and carbonated beverage was used in the tests. During RD-2-AFC testing, panelists were asked to identify which sample was more sour. For PA-2-AFC testing, panelists individually articulated the nature and direction of the difference between the 2 samples through a pretesting articulation procedure. The articulated difference was, then, used in standard 2-AFC test procedure. A warm-up effect was observed when comparing the standard RD-2-AFC with and without warm-up samples. The addition of warm up samples significantly increased the power of the test, in addition, the PA-2-AFC method had lower power than the RD-2-AFC method. The increase in power with the addition of warm-up samples for the RD-2-AFC procedure supports literature findings on the benefit of providing warm-up samples. No warm-up effect can be attributed to the PA-2-AFC method evidenced by the overall low power observed, which may be attributed to sample complexity. Selecting a specified discrimination testing method is advantageous and can reduce costs of sensory testing, but has been considered unpractical when samples may differ in unknown ways. This research explores the use of panelist derived terms to circumvent the need for researchers to identify these differences and

The nature of articulation errors in Egyptian Arabic-speaking children with velopharyngeal insufficiency due to cleft palate.

Science.gov (United States)

Abou-Elsaad, Tamer; Baz, Hemmat; Afsah, Omayma; Mansy, Alzahraa

2015-09-01

Even with early surgical repair, the majority of cleft palate children demonstrate articulation errors and have typical cleft palate speech. Was to determine the nature of articulation errors of Arabic consonants in Egyptian Arabic-speaking children with velopharyngeal insufficiency (VPI). Thirty Egyptian Arabic-speaking children with VPI due to cleft palate (whether primary repaired or secondary repaired) were studied. Auditory perceptual assessment (APA) of children speech was conducted. Nasopharyngoscopy was done to assess the velopharyngeal port (VPP) movements while the child was repeating speech tasks. Mansoura Arabic Articulation test (MAAT) was performed to analyze the consonants articulation of these children. The most frequent type of articulatory errors observed was substitution, more specifically, backing. Pharyngealization of anterior fricatives was the most frequent substitution, especially for the /s/ sound. The most frequent substituting sounds for other sounds were /ʔ/ followed by /k/ and /n/ sounds. Significant correlations were found between the degrees of the open nasality and VPP closure and the articulation errors. On the other hand, the sounds (/ʔ/,/ħ/,/ʕ/,/n/,/w/,/j/) were normally articulated in all studied group. The determination of articulation errors in VPI children could guide the therapists for designing appropriate speech therapy programs for these cases. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

Heat transfer analysis of frictional heat dissipation during articulation of femoral implants.

Science.gov (United States)

Davidson, J A; Gir, S; Paul, J P

1988-12-01

Previous studies have shown the tendency for frictional heating to occur during articulation of total hip systems in vitro under simulated hip loading conditions. The magnitude of this heating is sufficient to accelerate wear, creep, and oxidation degradation of the UHMWPE bearing surface. It was shown that ceramic articulating systems generate less frictional heating than polished cobalt alloy against UHMWPE. This frictional heating is expected to occur primarily for younger, heavier, and more active patients. Thus, long-term performance of the articulating hip system in these patients may not be that predicted from current, body-temperature wear, creep, and degradation studies. Although the tendency to generate frictional heat has been observed only during in vitro simulated hip loading, a heat transfer analysis of this phenomenon is presented to evaluate the ability of the hip joint to dissipate such heating in vivo. Additional experiments were performed using controlled resistance heaters inside a cobalt femoral head to verify the calculated levels of frictional heat and to assess the heat dissipation under simulated in vivo conditions. The effect of blood perfusion on the effective thermal conductivity of the joint capsule is also discussed. The present study describes and analyzes the various heat dissipation mechanisms present both in vitro and in vivo during articulation of metal and ceramic hip systems. From these tests and analyses, it is concluded that frictional heating in the reconstructed hip cannot be effectively removed, and that degredative elevated temperature processes can be expected to occur in vivo to both the UHMWPE and adjacent tissue under extended periods of excessive patient activity. This is particularly true for metal cobalt alloy femoral heads articulating on UHMWPE versus ceramic heads which generate significantly lower levels of heat.

Frida Kahlo: Visual Articulations of Suffering and Loss.

Science.gov (United States)

Nixon, Lois LaCivita

1996-01-01

Illustrates the value of interdisciplinary approaches to patient care by exploring visual articulations of suffering as rendered by one artist. Makes general observations about the nature of humanities courses offered to medical students and depicts a visual portrayal of an illness story representing personal perspectives about patient suffering…

data sets Simulations in articulating light-weight PRS

NARCIS (Netherlands)

Van den Berg, Bert

2008-01-01

The data sets are output of 3 different steps in the development a simulations of a PRS as described in chapter 3.3: Simulations in articulating light-weight PRS A case for Pedagogy-oriented and Rating-based Hybrid Recommendation Strategies Rob Nadolski, Bert van den Berg, Adriana Berlanga, Hans

Existence of equilibria in articulated bearings

Science.gov (United States)

Buscaglia, G.; Ciuperca, I.; Hafidi, I.; Jai, M.

2007-04-01

The existence of equilibrium solutions for a lubricated system consisting of an articulated body sliding over a flat plate is considered. Though this configuration is very common (it corresponds to the popular tilting-pad thrust bearings), the existence problem has only been addressed in extremely simplified cases, such as planar sliders of infinite width. Our results show the existence of at least one equilibrium for a quite general class of (nonplanar) slider shapes. We also extend previous results concerning planar sliders.

A Comparative Study on Motor Skills in 5-Year-Old Children with Phonological and Phonetic Disorders

Directory of Open Access Journals (Sweden)

Fatemeh Hasanati

2011-06-01

Full Text Available Background and Aim: Speech as a motor phenomenon requires repetitive and rapid function of articulatory organs performing extremely fine movements. Practice on motor skills results in facilitation in treatment progress of children with phonological disorders. The purpose of this study was to compare motor skills in 5-year-old children with phonological and phonetic disorders.Methods: Thirty-two children age 5 years, 16 with phonemical speech sound disorders and 16 with difficulty at a phonetic level participated in this study. TOLD Test was performed for linguistic skills investigation among children. Phonetic test, Wepman test, diadochokinesis and oral assessment was used for diagnosis between phonological and phonetic disorders. The children were also evaluated with Oseretsky motor developmental scale .Results: In comparison, mean scores of movement skills between both groups showed significant difference (p=0.006 and children with phonetic disorder got significantly higher scores on all part of this test.Conclusions: The findings of this study support the idea that speech sound disorders are frequently associated with motor problems, and that type of articulation disorder affects the motor performance in a different way. Phonological disorders seem to have more impact on motor performance than phonetic disorders. The results authenticate the need to pay more attention to the motor skills of children with articulation disorders.

The thumb carpometacarpal joint: curvature morphology of the articulating surfaces, mathematical description and mechanical functioning.

Science.gov (United States)

Dathe, Henning; Dumont, Clemens; Perplies, Rainer; Fanghänel, Jochen; Kubein-Meesenburg, Dietmar; Nägerl, Hans; Wachowski, Martin M

2016-01-01

The purpose is to present a mathematical model of the function of the thumb carpometacarpal joint (TCMCJ) based on measurements of human joints. In the TCMCJ both articulating surfaces are saddle-shaped. The aim was to geometrically survey the shapes of the articulating surfaces using precise replicas of 28 TCMCJs. None of these 56 articulating surfaces did mathematically extend the differential geometrical neighbourhood around the main saddle point so that each surface could be characterised by three main parameters: the two extreme radii of curvature in the main saddle point and the angle between the saddles' asymptotics (straight lines). The articulating surfaces, when contacting at the respective main saddle points, are incongruent. Hence, the TCMCJ has functionally five kinematical degrees of freedom (DOF); two DOF belong to flexion/extension, two to ab-/adduction. These four DOF are controlled by the muscular apparatus. The fifth DOF, axial rotation, cannot be adjusted but stabilized by the muscular apparatus so that physiologically under compressive load axial rotation does not exceed an angle of approximately ±3°. The TCMCJ can be stimulated by the muscular apparatus to circumduct. The mechanisms are traced back to the curvature incongruity of the saddle surfaces. Hence we mathematically proved that none of the individual saddle surfaces can be described by a quadratic saddle surface as is often assumed in literature. We derived an algebraic formula with which the articulating surfaces in the TCMCJ can be quantitatively described. This formula can be used to shape the articulating surfaces in physiologically equivalent TCMCJ-prostheses.

Neurological disorders in children with autism

Directory of Open Access Journals (Sweden)

N. N. Zavadenko

2015-01-01

Full Text Available During a clinical examination of children with autistic spectrum disorders, attention should be drawn to both their major clinical manifestations and neurological comorbidities. The paper considers the mechanisms of autism-induced neurological disorders, the spectrum of which may include manifestations, such as retarded and disharmonic early psychomotor development; the specific features of sensory perception/processing; rigidity and monotony of motor and psychic reactions; motor disinhibition and hyperexcitability; motor stereotypies; uncoordinated movements; developmental coordination disorders (dyspraxia; impaired expressive motor skills; speech and articulation disorders; tics; epilepsy. It describes the specific features of neurological symptoms in Asperger’s syndrome, particularly in semantic-pragmatic language disorders, higher incidence rates of hyperlexia, motor and vocal tics. The incidence rate of epilepsy in autistic spectrum disorders is emphasized to be greater than the average population one. At the same time, the risk of epilepsy is higher in mentally retarded patients with autism. Identification of neurological disorders is of great importance in determining the tactics of complex care for patients with autistic spectrum disorders. 

Kinematics study and workspace analysis of an articulated robotic arm of a rpar

International Nuclear Information System (INIS)

Zeb, J.; Rashid, F.; Iqbal, N.

2007-01-01

An itinerant RPAR (Radiation Protection Assistant Robot) has been constructed to assist radiation workers in radiation area which are radiologically hazardous and beyond tile safe approach of radiation workers. The RPAR comprises of a cubicle tri- wheeled platform and a 4-DOF (Four Degree of Freedom) serial type articulated robotic arm. The movement of the platform is controlled by two differential wheeled driving systems. The Kinematics and Manipulator Jacobian of the end-effector (gripper) of the articulated robotic arm mounted on the RPAR were evaluated. The work space analyses of the articulated robotic arm have been carried out. The RPAR is helpful for surveillance of radiation zones, to pick and carry dropdown radioactive samples and sources, in routine radiological operations as well as during an emergency response to a radiological accident. The performance of the RPAR was found satisfactory. (author)

The effect of skeletal pattern on determining articulator settings for prosthodontic rehabilitation: an in vivo study.

LENUS (Irish Health Repository)

Canning, Tom

2011-01-01

During extensive prosthodontic treatment, the use of an accurately adjusted articulator is recommended to simulate mandibular movements. This clinical study was undertaken to assess any possible effect of the underlying skeletal pattern on programming articulator settings.

Conceptual design main progress of EAST Articulated Maintenance Arm (EAMA) system

Energy Technology Data Exchange (ETDEWEB)

Shi, Shanshuang, E-mail: shiss@ipp.ac.cn [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China); Laboratory of Intelligent Machines, Lappeenranta University of Technology (Finland); Song, Yuntao; Cheng, Yong [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China); Villedieu, Eric; Bruno, Vincent [CEA-IRFM, F-13108 Saint-Paul-Lez-Durance (France); Feng, Hansheng [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China); Wu, Huapeng [Laboratory of Intelligent Machines, Lappeenranta University of Technology (Finland); Wang, Peng [State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000 (China); Hao, Zhiwei; Li, Yang; Wang, Kun; Pan, Hongtao [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)

2016-03-15

Highlights: • EAST Articulated Maintenance Arm (EAMA) system is being collaboratively developed by ASIPP and CEA-IRFM. • Conceptual design for a 3-DOF wrist end effector with gripper has been finished. • Kinematic design can reach 90% of the workspace inside EAST tokamak vessel. • A prototype of EAMA arm segment has been built to validate the design. - Abstract: EAST articulated maintenance arm (EAMA) system is being collaboratively developed by ASIPP and CEA-IRFM for the purpose of remote inspection and simple maintenance operations in EAST vacuum vessel during physical experiments without breaking the ultra-high vacuum condition. The EAMA system design is based on a similar articulated inspection arm robot successfully demonstrated in Tore Supra in 2008. In order to better meet EAST configurations and maintenance requirements, optimized mechanisms and dimensions are considered for EAMA robot as upgrades. Besides, the segmented arm is equipped with a 3-DOF wrist end effector and gripper for gripping operation as well as inspection. Some calculations and simulations on statics, kinematics and workspace of EAMA have been presented to validate the feasibility. This paper introduces the overall design of the EAMA robot and presents implementation progress.

Conceptual design main progress of EAST Articulated Maintenance Arm (EAMA) system

International Nuclear Information System (INIS)

Shi, Shanshuang; Song, Yuntao; Cheng, Yong; Villedieu, Eric; Bruno, Vincent; Feng, Hansheng; Wu, Huapeng; Wang, Peng; Hao, Zhiwei; Li, Yang; Wang, Kun; Pan, Hongtao

2016-01-01

Highlights: • EAST Articulated Maintenance Arm (EAMA) system is being collaboratively developed by ASIPP and CEA-IRFM. • Conceptual design for a 3-DOF wrist end effector with gripper has been finished. • Kinematic design can reach 90% of the workspace inside EAST tokamak vessel. • A prototype of EAMA arm segment has been built to validate the design. - Abstract: EAST articulated maintenance arm (EAMA) system is being collaboratively developed by ASIPP and CEA-IRFM for the purpose of remote inspection and simple maintenance operations in EAST vacuum vessel during physical experiments without breaking the ultra-high vacuum condition. The EAMA system design is based on a similar articulated inspection arm robot successfully demonstrated in Tore Supra in 2008. In order to better meet EAST configurations and maintenance requirements, optimized mechanisms and dimensions are considered for EAMA robot as upgrades. Besides, the segmented arm is equipped with a 3-DOF wrist end effector and gripper for gripping operation as well as inspection. Some calculations and simulations on statics, kinematics and workspace of EAMA have been presented to validate the feasibility. This paper introduces the overall design of the EAMA robot and presents implementation progress.

Competence articulation: Alignment of competences and responsibilities in synchronous telemedical collaboration

DEFF Research Database (Denmark)

Larsen, Simon Bo; Bardram, Jakob Eyvind

2008-01-01

. In particular, we want to look at the dynamic quality of competences, and investigate how competence is mutually developed in coordinated work. We have termed this process competence articulation, a concept which tries to emphasize competence as well as social development of competence as part of cooperation......Many studies and concepts within CSCW deal with the temporal, spatial, social, and computational aspects of supporting collaborative work. In this paper we want to pay attention to another central aspect to the achievement of collaborative work, namely the competence of the people involved...... communication options for competence articulation, which again improve collaboration and thus the quality of the treatment....

Steering characteristic of an articulated bus under quasi steady maneuvering

Science.gov (United States)

Ubaidillah, Setiawan, Budi Agus; Aridharma, Airlangga Putra; Lenggana, Bhre Wangsa; Caesar, Bernardus Placenta Previo

2018-02-01

Articulated buses have been being preferred as public transportation modes due to their operational capacity. Therefore, passenger safety must be the priority of this public service vehicle. This research focused on the analytical approach of steering characteristics of an articulated bus when it maneuvered steadily. Such turning condition could be referred as a stability parameter of the bus for preliminary handling assessment. The analytical approach employed kinematics relationship between front and rear bodies as well as steering capabilities. The quasi steady model was developed to determine steering parameters such as turning radius, oversteer, and understeer. The mathematical model was useful for determining both coefficients of understeer and oversteer. The dimension of articulated bus followed a commonly used bus as utilized in Trans Jakarta busses. Based on the simulation, for one minimum center of the body, the turning radius was calculated about 8.8 m and 7.6 m at steady turning speed of 10 km/h. In neutral condition, the minimum road radius should be 6.5 m at 10 km/h and 6.9 m at 40 km/h. For two centers of the body and oversteer condition, the front body has the turning radius of 8.8 m, while, the rear body has the turning radius of 9.8 m at both turning speeds of 40 km/h. The other steering parameters were discussed accordingly.

Integrated neurobiology of bipolar disorder

Directory of Open Access Journals (Sweden)

Vladimir eMaletic

2014-08-01

Full Text Available From a neurobiological perspective there is no such thing as bipolar disorder. Rather, it is almost certainly the case that many somewhat similar, but subtly different, pathological conditions produce a disease state that we currently diagnose as bipolarity. This heterogeneity—reflected in the lack of synergy between our current diagnostic schema and our rapidly advancing scientific understanding of the condition—limits attempts to articulate an integrated perspective on bipolar disorder. However, despite these challenges, scientific findings in recent years are beginning to offer a provisional unified field theory of the disease. This theory sees bipolar disorder as a suite of related neurodevelopmental conditions with interconnected functional abnormalities that often appear early in life and worsen over time. In addition to accelerated loss of volume in brain areas known to be essential for mood regulation and cognitive function, consistent findings have emerged at a cellular level, providing evidence that bipolar disorder is reliably associated with dysregulation of glial-neuronal interactions. Among these glial elements are microglia—the brain’s primary immune elements, which appear to be overactive in the context of bipolarity. Multiple studies now indicate that inflammation is also increased in the periphery of the body in both the depressive and manic phases of the illness, with at least some return to normality in the euthymic state. These findings are consistent with changes in the HPA axis, which are known to drive inflammatory activation. In summary, the very fact that no single gene, pathway or brain abnormality is likely to ever account for the condition is itself an extremely important first step in better articulating an integrated perspective on both its ontological status and pathogenesis. Whether this perspective will translate into the discovery of innumerable more homogeneous forms of bipolarity is one of the great

Mapping Emplaced Articulated Concrete Mattress Using Geoelectrical and Electromagnetic Techniques

National Research Council Canada - National Science Library

Sjostrom, Keith

1998-01-01

Articulated concrete mattresses (ACM) are structures placed parallel to the river current for the purpose of stabilizing the concave banks in river bends, reduce the effects of erosion, and maintain the river channel...

Dynamics and control of robotic aircraft with articulated wings

Science.gov (United States)

Paranjape, Aditya Avinash

There is a considerable interest in developing robotic aircraft, inspired by birds, for a variety of missions covering reconnaissance and surveillance. Flapping wing aircraft concepts have been put forth in light of the efficiency of flapping flight at small scales. These aircraft are naturally equipped with the ability to rotate their wings about the root, a form of wing articulation. This thesis covers some problems concerning the performance, stability and control of robotic aircraft with articulated wings in gliding flight. Specifically, we are interested in aircraft without a vertical tail, which would then use wing articulation for longitudinal as well as lateral-directional control. Although the dynamics and control of articulated wing aircraft share several common features with conventional fixed wing aircraft, the presence of wing articulation presents several unique benefits as well as limitations from the perspective of performance and control. One of the objective of this thesis is to understand these features using a combination of theoretical and numerical tools. The aircraft concept envisioned in this thesis uses the wing dihedral angles for longitudinal and lateral-directional control. Aircraft with flexible articulated wings are also investigated. We derive a complete nonlinear model of the flight dynamics incorporating dynamic CG location and the changing moment of inertia. We show that symmetric dihedral configuration, along with a conventional horizontal tail, can be used to control flight speed and flight path angle independently of each other. This characteristic is very useful for initiating an efficient perching maneuver. It is shown that wing dihedral angles alone can effectively regulate sideslip during rapid turns and generate a wide range of equilibrium turn rates while maintaining a constant flight speed and regulating sideslip. We compute the turning performance limitations that arise due to the use of wing dihedral for yaw control

Comparative study between 2 methods of mounting models in semiadjustable articulator for orthognathic surgery.

Science.gov (United States)

Mayrink, Gabriela; Sawazaki, Renato; Asprino, Luciana; de Moraes, Márcio; Fernandes Moreira, Roger William

2011-11-01

Compare the traditional method of mounting dental casts on a semiadjustable articulator and the new method suggested by Wolford and Galiano, 1 analyzing the inclination of maxillary occlusal plane in relation to FHP. Two casts of 10 patients were obtained. One of them was used for mounting of models on a traditional articulator, by using a face bow transfer system and the other one was used to mounting models at Occlusal Plane Indicator platform (OPI), using the SAM articulator. After that, na analysis of the accuracy of mounting models was performed. The angle made by de occlusal plane and FHP on the cephalogram should be equal the angle between the occlusal plane and the upper member of the articulator. The measures were tabulated in Microsoft Excell(®) and calculated using a 1-way analysis variance. Statistically, the results did not reveal significant differences among the measures. OPI and face bow presents similar results but more studies are needed to verify its accuracy relative to the maxillary cant in OPI or develop new techniques able to solve the disadvantages of each technique. Copyright © 2011 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

Automation and traction control of articulated vehicles

OpenAIRE

Andersson, Ulf

2013-01-01

Articulated machines such as load-haul-dump machines, wheel loaders and haulers operate in many different environments and driving conditions. In particular they need to be able to perform well with road conditions and loads that can change drastically, setting hard requirements on performances and robustness. The control challenges for off-road vehicles are hence quite different from standard cars or trucks, which mostly drive on regular roads. An important aspect characterising this is the ...

The effect of emotion on articulation rate in persistence and recovery of childhood stuttering.

Science.gov (United States)

Erdemir, Aysu; Walden, Tedra A; Jefferson, Caswell M; Choi, Dahye; Jones, Robin M

2018-06-01

This study investigated the possible association of emotional processes and articulation rate in pre-school age children who stutter and persist (persisting), children who stutter and recover (recovered) and children who do not stutter (nonstuttering). The participants were ten persisting, ten recovered, and ten nonstuttering children between the ages of 3-5 years; who were classified as persisting, recovered, or nonstuttering approximately 2-2.5 years after the experimental testing took place. The children were exposed to three emotionally-arousing video clips (baseline, positive and negative) and produced a narrative based on a text-free storybook following each video clip. From the audio-recordings of these narratives, individual utterances were transcribed and articulation rates were calculated. Results indicated that persisting children exhibited significantly slower articulation rates following the negative emotion condition, unlike recovered and nonstuttering children whose articulation rates were not affected by either of the two emotion-inducing conditions. Moreover, all stuttering children displayed faster rates during fluent compared to stuttered speech; however, the recovered children were significantly faster than the persisting children during fluent speech. Negative emotion plays a detrimental role on the speech-motor control processes of children who persist, whereas children who eventually recover seem to exhibit a relatively more stable and mature speech-motor system. This suggests that complex interactions between speech-motor and emotional processes are at play in stuttering recovery and persistency; and articulation rates following negative emotion or during stuttered versus fluent speech might be considered as potential factors to prospectively predict persistence and recovery from stuttering. Copyright © 2017 Elsevier Inc. All rights reserved.

When Does Speech Sound Disorder Matter for Literacy? The Role of Disordered Speech Errors, Co-Occurring Language Impairment and Family Risk of Dyslexia

Science.gov (United States)

Hayiou-Thomas, Marianna E.; Carroll, Julia M.; Leavett, Ruth; Hulme, Charles; Snowling, Margaret J.

2017-01-01

Background: This study considers the role of early speech difficulties in literacy development, in the context of additional risk factors. Method: Children were identified with speech sound disorder (SSD) at the age of 3½ years, on the basis of performance on the Diagnostic Evaluation of Articulation and Phonology. Their literacy skills were…

The Minnesota Articulation Project and Its Proficiency-Based Assessments.

Science.gov (United States)

Chalhoub-Deville, Micheline

1997-01-01

Reports on the Minnesota Articulation Project, providing an overview of the projects' three principal working groups: political action, curriculum, and assessment. The article then outlines the theoretical underpinnings of the proficiency-based assessment instruments developed in French, German, and Spanish and describes in detail the content and…

Tribology considerations for hip joint articulations in relation to the "new orthopaedic patient".

Science.gov (United States)

Rieker, C B

2006-01-01

The purpose of this review is to examine alternative bearings used in total hip arthroplasty (THA) and discuss the specific tribologic needs of the "New Orthopaedic Patient". As orthopaedic patients today are younger and more active, there is a clear need for hip joint implants and articulations minimising the amount of wear and guarantying better stability. Recent modern developments in tribology with highly cross-linked polyethylenes and hard-on-hard bearings allow the safe and effective use of larger diameter articulations in THA.

The history of articulators: the wonderful world of "grinders," Part 2.

Science.gov (United States)

Starcke, Edgar N; Engelmeier, Robert L

2012-04-01

This is the second article in a three-part series on the history of denture grinding devices. The first article reviewed the earliest attempts to mechanically grind the occlusion of artificial teeth from the manipulation of simple articulators to very elaborate and complex machines powered by hand cranks. This article explores motor-driven grinders, most driven by way of a belt-driven pulley powered by an external source. A few were self-contained; that is, the motor was mounted on the grinder base. There were basically two types of grinders: those with cast holders for mounting processed dentures and those with provisions for using articulators for that purpose. © 2012 by the American College of Prosthodontists.

Data-driven importance distributions for articulated tracking

DEFF Research Database (Denmark)

Hauberg, Søren; Pedersen, Kim Steenstrup

2011-01-01

We present two data-driven importance distributions for particle filterbased articulated tracking; one based on background subtraction, another on depth information. In order to keep the algorithms efficient, we represent human poses in terms of spatial joint positions. To ensure constant bone le...... filter, where they improve both accuracy and efficiency of the tracker. In fact, they triple the effective number of samples compared to the most commonly used importance distribution at little extra computational cost....

Treatment Model in Children with Speech Disorders and Its Therapeutic Efficiency

Directory of Open Access Journals (Sweden)

Barberena, Luciana

2014-05-01

Full Text Available Introduction Speech articulation disorders affect the intelligibility of speech. Studies on therapeutic models show the effectiveness of the communication treatment. Objective To analyze the progress achieved by treatment with the ABAB—Withdrawal and Multiple Probes Model in children with different degrees of phonological disorders. Methods The diagnosis of speech articulation disorder was determined by speech and hearing evaluation and complementary tests. The subjects of this research were eight children, with the average age of 5:5. The children were distributed into four groups according to the degrees of the phonological disorders, based on the percentage of correct consonants, as follows: severe, moderate to severe, mild to moderate, and mild. The phonological treatment applied was the ABAB—Withdrawal and Multiple Probes Model. The development of the therapy by generalization was observed through the comparison between the two analyses: contrastive and distinctive features at the moment of evaluation and reevaluation. Results The following types of generalization were found: to the items not used in the treatment (other words, to another position in the word, within a sound class, to other classes of sounds, and to another syllable structure. Conclusion The different types of generalization studied showed the expansion of production and proper use of therapy-trained targets in other contexts or untrained environments. Therefore, the analysis of the generalizations proved to be an important criterion to measure the therapeutic efficacy.

Development of a Wave Energy -Responsive Self-Actuated Blade Articulation Mechanism for an OWC Turbine

Energy Technology Data Exchange (ETDEWEB)

Francis A. Di Bella

2010-06-01

The Phase I SBIR effort completed the feasibility design, fabrication, and wind tunnel testing of a self-actuated blade articulation mechanism that uses a torsion bar and a lightweight airfoil to affect the articulation of the Wells airfoil. The articulation is affected only by the air stream incident on the airfoil. The self-actuating blade eliminates the complex and costly linkage mechanism that is now needed to perform this function on either a variable pitch Wells-type or Dennis-Auld air turbine. Using the results reported by independent researchers, the projected improvement in the Wells-type turbine efficiency is 20-40%, in addition to an increase in the operating air flow range by 50-100%, therefore enabling a smaller or slower single turbine to be used.

Metatarsalgia located by synovitis and uncertainty of the articulation metatarsus-phalanges of the II toe

International Nuclear Information System (INIS)

Gerstner G, Juan Bernardo

2002-01-01

The synovitis and the uncertainty of the articulation metatarsus-phalanges (MP) of the II toe they are the causes more frequent of metatersalgia located in this articulation of the foot, frequently bad diagnosed and not well managed by the general orthopedist. The natural history understands stadiums so precocious as the synovitis without alteration of peri-articular structures, going by the frank uncertainty, and finishing with the angular deformities and the complete luxation of the articulation MP. The meticulous and directed interrogation, the physical exam specifies and the classification of the diagnostic they are the keys for the successful handling of the pathology. The surgical correction of this condition should always be associated to the correction of associate deformities as the hallux valgus and the fingers in claw

Syllable reduction and articulation rates in Danish, Norwegian and Swedish

NARCIS (Netherlands)

Hilton, N.H.; Schüppert, Anja; Gooskens, C.S.

2011-01-01

This investigation compares articulation rates of phonological and phonetic syllables in Norwegian, Swedish and Danish to investigate differences in degrees of syllable deletion (reduction) among these three languages. For the investigation two sets of data are used: one consisting of recorded

The "ACA Code of Ethics": Articulating Counseling's Professional Covenant

Science.gov (United States)

Ponton, Richard F.; Duba, Jill D.

2009-01-01

The "ACA Code of Ethics" (American Counseling Association, 2005) is an articulation of the ever-changing relationship between counseling professionals and society. It provides clear parameters of behaviors to meet the changing needs of the people counselors are called to serve. This article reviews the 2005 "Code" as both a statement of counselor…

Design of articulated mechanisms with a degree of freedom constraint using global optimization

DEFF Research Database (Denmark)

Kawamoto, Atsushi; Stolpe, Mathias

2004-01-01

This paper deals with design of articulated mechanisms using a truss ground structure representation. The considered mechanism design problem is to maximize the output displacement for a given input force by choosing a prescribed number of truss elements out of all the available elements, so...... that the resultant mechanism has one mechanical degree of freedom when supported in a statically determinate manner. The mechanical degree of freedom constraint is included since it is essential for obtaining a proper articulated mechanism design. The Green-Lagrange strain measure is used to accommodate for large...

Impairment of vowel articulation as a possible marker of disease progression in Parkinson's disease.

Directory of Open Access Journals (Sweden)

Sabine Skodda

Full Text Available PURPOSE: The aim of the current study was to survey if vowel articulation in speakers with Parkinson's disease (PD shows specific changes in the course of the disease. METHOD: 67 patients with PD (42 male and 40 healthy speakers (20 male were tested and retested after an average time interval of 34 months. Participants had to read a given text as source for subsequent calculation of the triangular vowel space area (tVSA and vowel articulation index (VAI. Measurement of tVSA and VAI were based upon analysis of the first and second formant of the vowels /α/, /i/and /u/ extracted from defined words within the text. RESULTS: At first visit, VAI values were reduced in male and female PD patients as compared to the control group, and showed a further decrease at the second visit. Only in female Parkinsonian speakers, VAI was correlated to overall speech impairment based upon perceptual impression. VAI and tVSA were correlated to gait impairment, but no correlations were seen between VAI and global motor impairment or overall disease duration. tVSA showed a similar reduction in the PD as compared to the control group and was also found to further decline between first and second examination in female, but not in male speakers with PD. CONCLUSIONS: Measurement of VAI seems to be superior to tVSA in the description of impaired vowel articulation and its further decline in the course of the disease in PD. Since impairment of vowel articulation was found to be independent from global motor function but correlated to gait dysfunction, measurement of vowel articulation might have a potential to serve as a marker of axial disease progression.

Prevalence of Speech Disorders in Elementary School Students in Jordan

Science.gov (United States)

Al-Jazi, Aya Bassam; Al-Khamra, Rana

2015-01-01

Goal: The aim of this study was to find the prevalence of speech (articulation, voice, and fluency) disorders among elementary school students from first grade to fourth grade. This research was based on the screening implemented as part of the Madrasati Project, which is designed to serve the school system in Jordan. Method: A sample of 1,231…

The technology of mobile robot with articulated crawler mechanism

Energy Technology Data Exchange (ETDEWEB)

Kim, Seung Ho; Kim, Byung Soo; Kim, Chang Hoi; Hwang, Suk Yong; Suh, Yong Chil; Lee, Yung Kwang; Sin, Jae Ho [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

1995-01-01

The main application of a mobile robot are to do the inspection and maintenance tasks in the primary and auxiliary building, and to meet with the radiological emergency response in nuclear power plant. Our project to develop crawler-type mobile robot has been divided into 3 phases. In 1 st phase, the-state-of-the-arts of mobile robot technology were studied and analyzed. And then the technical report `development of mobile robot technology for the light work` was published on July, 1993. In current phase, the articulated crawler type mobile robot named as ANDROS Mark VI was purchased to evaluate deeply its mechanism and control system. Then we designed the autonomous track surface, to get the inclination angle of robot, and to control the front and rear auxiliary track autonomously during climbing up and down stairs. And also, the autonomous stair-climbing algorithm has been developed to going over stairs with high stability. For the final phase, the advanced model of articulated crawler type mobile robot is going to be developed. (Author) 13 refs., 30 figs., 12 tabs.

The technology of mobile robot with articulated crawler mechanism

International Nuclear Information System (INIS)

Kim, Seung Ho; Kim, Byung Soo; Kim, Chang Hoi; Hwang, Suk Yong; Suh, Yong Chil; Lee, Yung Kwang; Sin, Jae Ho

1995-01-01

The main application of a mobile robot are to do the inspection and maintenance tasks in the primary and auxiliary building, and to meet with the radiological emergency response in nuclear power plant. Our project to develop crawler-type mobile robot has been divided into 3 phases. In 1 st phase, the-state-of-the-arts of mobile robot technology were studied and analyzed. And then the technical report 'development of mobile robot technology for the light work' was published on July, 1993. In current phase, the articulated crawler type mobile robot named as ANDROS Mark VI was purchased to evaluate deeply its mechanism and control system. Then we designed the autonomous track surface, to get the inclination angle of robot, and to control the front and rear auxiliary track autonomously during climbing up and down stairs. And also, the autonomous stair-climbing algorithm has been developed to going over stairs with high stability. For the final phase, the advanced model of articulated crawler type mobile robot is going to be developed. (Author) 13 refs., 30 figs., 12 tabs

Articulation and Noncomprehension Signaling in Adolescent and Adult Males with Down Syndrome and Fragile X Syndrome

Science.gov (United States)

Fedak, Larissa Ann

2012-01-01

The purpose of this study was to determine whether or not decreased articulation of speech played a role in the ability of an individual with Down syndrome or Fragile X syndrome to signal noncomprehension and whether the two groups differed in their levels of articulation of speech and noncomprehension signaling ability. The research was conducted…

The Effects of Head-Up Display (HUD) Pitch Ladder Articulation, Pitch Number Location and Horizon Line Length on Unusual Attitude Recoveries for the F-16

Science.gov (United States)

1990-07-01

No comment . ’D. No comment . E. The best display was the partially articulated HUD. F. Only pitch bars below the horizon should be articulated. G. Fully articulated pitch bars were the best. H. Fully articulated configuration was easiest to quickly determine which direction to the horizon. I. No comment . J. Fully articulated HUD gave instant feedback on which way to pull to the horizon, K. No comment . L. Definite difference using the full articulation. 2. The following zomments are

The superior precentral gyrus of the insula does not appear to be functionally specialized for articulation.

Science.gov (United States)

Fedorenko, Evelina; Fillmore, Paul; Smith, Kimberly; Bonilha, Leonardo; Fridriksson, Julius

2015-04-01

Broca (Broca P. Bull Soc Anat Paris 36: 330-357, 1861) influentially argued that posterior left inferior frontal gyrus supports speech articulation. According to an alternative proposal (e.g., Dronkers NF. Nature 384: 159-161, 1996; Wise RJ, Greene J, Buchel C, Scott SK. Lancet 353: 1057-1061, 1999; Baldo JV, Wilkins DP, Ogar J, Willock S, Dronkers NF. Cortex 47: 800-807, 2011), a region in the anterior insula [specifically, the superior precentral gyrus of the insula (SPGI)] is the seat of articulatory abilities. Moreover, Dronkers and colleagues have argued that the SPGI is functionally specialized for (complex) speech articulation. Here, we evaluate this claim using individual-subject functional MRI (fMRI) analyses (e.g., Fedorenko E, Hsieh PJ, Nieto-Castanon A, Whitfield-Gabrieli S, Kanwisher N. J Neurophysiol 104: 1177-1194, 2010). We find that the SPGI responds weakly, if at all, during articulation (parts of Broca's area respond 3-4 times more strongly) and does not show a stronger response to higher articulatory demands. This holds regardless of whether the SPGI is defined functionally (by selecting the most articulation-responsive voxels in the vicinity of the SPGI in each subject individually) or anatomically (by using masks drawn on each individual subject's anatomy). Critically, nonspeech oral movements activate the SPGI more strongly than articulation, especially under the anatomical definition of the SPGI. In line with Hillis et al. (Hillis AE, Work M, Barker PB, Jacobs MA, Breese EL, Maurer K. Brain 127: 1479-1487, 2004; also Trupe L, Varma DD, Gomez Y, Race D, Leigh R, Hillis AE, Gottesman RF. Stroke 44: 740-744, 2013), we argue that previous links between the SPGI, and perhaps anterior insula more generally, and articulation may be due to its high base rate of ischemic damage (and activation in fMRI; Yarkoni T, Poldrack RA, Nichols TE, Van Essen DC, Wager TD. Nat Methods 8: 665-670, 2011), combined with its proximity to regions that more directly

High-Performance 3D Articulated Robot Display

Science.gov (United States)

Powell, Mark W.; Torres, Recaredo J.; Mittman, David S.; Kurien, James A.; Abramyan, Lucy

2011-01-01

In the domain of telerobotic operations, the primary challenge facing the operator is to understand the state of the robotic platform. One key aspect of understanding the state is to visualize the physical location and configuration of the platform. As there is a wide variety of mobile robots, the requirements for visualizing their configurations vary diversely across different platforms. There can also be diversity in the mechanical mobility, such as wheeled, tracked, or legged mobility over surfaces. Adaptable 3D articulated robot visualization software can accommodate a wide variety of robotic platforms and environments. The visualization has been used for surface, aerial, space, and water robotic vehicle visualization during field testing. It has been used to enable operations of wheeled and legged surface vehicles, and can be readily adapted to facilitate other mechanical mobility solutions. The 3D visualization can render an articulated 3D model of a robotic platform for any environment. Given the model, the software receives real-time telemetry from the avionics system onboard the vehicle and animates the robot visualization to reflect the telemetered physical state. This is used to track the position and attitude in real time to monitor the progress of the vehicle as it traverses its environment. It is also used to monitor the state of any or all articulated elements of the vehicle, such as arms, legs, or control surfaces. The visualization can also render other sorts of telemetered states visually, such as stress or strains that are measured by the avionics. Such data can be used to color or annotate the virtual vehicle to indicate nominal or off-nominal states during operation. The visualization is also able to render the simulated environment where the vehicle is operating. For surface and aerial vehicles, it can render the terrain under the vehicle as the avionics sends it location information (GPS, odometry, or star tracking), and locate the vehicle

An Articulated Inspection Arm for fusion purposes

Energy Technology Data Exchange (ETDEWEB)

Villedieu, E., E-mail: eric.villedieu@cea.fr [CEA-IRFM, 13108 Saint Paul lez Durance (France); Bruno, V.; Pastor, P.; Gargiulo, L. [CEA-IRFM, 13108 Saint Paul lez Durance (France); Song, Y.T.; Cheng, Y.; Feng, H. [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei (China); Liu, C. [CEA-IRFM, 13108 Saint Paul lez Durance (France); Institute of Plasma Physics, Chinese Academy of Sciences, Hefei (China); Shi, S.S. [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei (China)

2016-11-01

Highlights: • Requirements for in vacuum tokamak inspection are presented. • Development of a prototype of the Articulated Inspection Arm is described. • The upgrade of the prototype to convert it into a fully operational device is detailed. • Future applications of inspection robots in the new fusion reactors is discussed. - Abstract: Fusion Tokamaks are complex machines which require special conditions for their operation, in particular, high vacuum inside the vessel and high temperature of the vessel walls. During plasma phases, the first wall components are highly stressed and a control is necessary in case of doubt about their condition. To be able to make safely such an inspection in a short period of time is a great advantage. The Articulated Inspection Arm (AIA) developed by the CEA provides the capability for fast inspections of the first wall overall surface keeping the vacuum and temperature conditions of the vessel. The robot prototype was validated in Tore Supra in 2008. In the frame of a joint laboratory, CEA/IRFM and ASIPP have decided to upgrade the existing AIA prototype to use it routinely in the EAST and WEST tokamaks. The robot has followed an important upgrade program in 2013 and 2014. The document presents the various upgrades made on the mechanics, the sensors, the electronics, the control station and the integration adaptation for the operation on EAST. From the AIA experience, thoughts for future inspection robots are given.

An Articulated Inspection Arm for fusion purposes

International Nuclear Information System (INIS)

Villedieu, E.; Bruno, V.; Pastor, P.; Gargiulo, L.; Song, Y.T.; Cheng, Y.; Feng, H.; Liu, C.; Shi, S.S.

2016-01-01

Highlights: • Requirements for in vacuum tokamak inspection are presented. • Development of a prototype of the Articulated Inspection Arm is described. • The upgrade of the prototype to convert it into a fully operational device is detailed. • Future applications of inspection robots in the new fusion reactors is discussed. - Abstract: Fusion Tokamaks are complex machines which require special conditions for their operation, in particular, high vacuum inside the vessel and high temperature of the vessel walls. During plasma phases, the first wall components are highly stressed and a control is necessary in case of doubt about their condition. To be able to make safely such an inspection in a short period of time is a great advantage. The Articulated Inspection Arm (AIA) developed by the CEA provides the capability for fast inspections of the first wall overall surface keeping the vacuum and temperature conditions of the vessel. The robot prototype was validated in Tore Supra in 2008. In the frame of a joint laboratory, CEA/IRFM and ASIPP have decided to upgrade the existing AIA prototype to use it routinely in the EAST and WEST tokamaks. The robot has followed an important upgrade program in 2013 and 2014. The document presents the various upgrades made on the mechanics, the sensors, the electronics, the control station and the integration adaptation for the operation on EAST. From the AIA experience, thoughts for future inspection robots are given.

Spinal SPECT in disorders of the posterior arch of the vertebrae

International Nuclear Information System (INIS)

Foulquie, P.; Boussaton, M.; Condouret, J.; Adam, P.

1994-01-01

Vertebral SPECT is not currently a routine tool. The interest of this technique as a complement of planar images is exposed by P Foulquie et al. The authors insist on the rise of sensitivity and of localization accuracy of the foci as compared with planar imaging. These two factors lead to an improvement of the diagnostic value of scintigraphy which becomes able to objectivate, among other disorders, recent isthmolysis, degenerative disorders of the posterior articulations or stress apophysal lesions in sport practicing youngsters. (authors). 5 figs., refs

Gender Recognition from Unconstrained and Articulated Human Body

OpenAIRE

Wu, Qin; Guo, Guodong

2014-01-01

Gender recognition has many useful applications, ranging from business intelligence to image search and social activity analysis. Traditional research on gender recognition focuses on face images in a constrained environment. This paper proposes a method for gender recognition in articulated human body images acquired from an unconstrained environment in the real world. A systematic study of some critical issues in body-based gender recognition, such as which body parts are informative, ho...

Comparison of three facebow/semi-adjustable articulator systems for planning orthognathic surgery.

Science.gov (United States)

O'Malley, A M; Milosevic, A

2000-06-01

Our aim was to measure the steepness of the occlusal plane produced by three different semi-adjustable articulators: the Dentatus Type ARL, Denar MkII, and the Whipmix Quickmount 8800, and to assess the influence of possible systematic errors in positioning of study casts on articulators that are used to plan orthognathic surgery. Twenty patients (10 skeletal class II, and 10 skeletal class III) who were having pre-surgical orthodontics at Liverpool University Dental Hospital were studied. The measurement of the steepness of the occlusal plane was taken as the angle between the facebow bite-fork and the horizontal arm of the articulator. This was compared with the angle of the maxillary occlusal plane to the Frankfort plane as measured on lateral cephalometry (the gold standard). The Whipmix was closest to the gold standard as it flattened the occlusal plane by only 2 degrees (P<0.05). The results of the Denar and Dentatus differed significantly from those of the cephalogram as they flattened the occlusal plane by 5 degrees and 6. 5 degrees (P<0.01), respectively. Clinicians are encouraged to verify the steepness of the occlusal plane on mounted study casts before the technician makes the model. Copyright 2000 The British Association of Oral and Maxillofacial Surgeons.

Impairment of Vowel Articulation as a Possible Marker of Disease Progression in Parkinson's Disease

OpenAIRE

Skodda, Sabine; Grönheit, Wenke; Schlegel, Uwe

2012-01-01

PURPOSE: The aim of the current study was to survey if vowel articulation in speakers with Parkinson's disease (PD) shows specific changes in the course of the disease. METHOD: 67 patients with PD (42 male) and 40 healthy speakers (20 male) were tested and retested after an average time interval of 34 months. Participants had to read a given text as source for subsequent calculation of the triangular vowel space area (tVSA) and vowel articulation index (VAI). Measurement of tVSA and VAI were ...

Integrated Neurobiology of Bipolar Disorder

Science.gov (United States)

Maletic, Vladimir; Raison, Charles

2014-01-01

From a neurobiological perspective there is no such thing as bipolar disorder. Rather, it is almost certainly the case that many somewhat similar, but subtly different, pathological conditions produce a disease state that we currently diagnose as bipolarity. This heterogeneity – reflected in the lack of synergy between our current diagnostic schema and our rapidly advancing scientific understanding of the condition – limits attempts to articulate an integrated perspective on bipolar disorder. However, despite these challenges, scientific findings in recent years are beginning to offer a provisional “unified field theory” of the disease. This theory sees bipolar disorder as a suite of related neurodevelopmental conditions with interconnected functional abnormalities that often appear early in life and worsen over time. In addition to accelerated loss of volume in brain areas known to be essential for mood regulation and cognitive function, consistent findings have emerged at a cellular level, providing evidence that bipolar disorder is reliably associated with dysregulation of glial–neuronal interactions. Among these glial elements are microglia – the brain’s primary immune elements, which appear to be overactive in the context of bipolarity. Multiple studies now indicate that inflammation is also increased in the periphery of the body in both the depressive and manic phases of the illness, with at least some return to normality in the euthymic state. These findings are consistent with changes in the hypothalamic–pituitary–adrenal axis, which are known to drive inflammatory activation. In summary, the very fact that no single gene, pathway, or brain abnormality is likely to ever account for the condition is itself an extremely important first step in better articulating an integrated perspective on both its ontological status and pathogenesis. Whether this perspective will translate into the discovery of innumerable more homogeneous forms of

A Facile Technique to Make Articulating Spacers for Infected Total Knee Arthroplasty

Directory of Open Access Journals (Sweden)

Yu-Ping Su

2009-03-01

Conclusion: Treating infected total knee arthroplasty with these self-made articulating spacers eradicates infection effectively, improves the life quality before reimplantation and provides good final results without significant complications.

Speech disorders did not correlate with age at onset of Parkinson’s disease

Directory of Open Access Journals (Sweden)

Alice Estevo Dias

2016-02-01

Full Text Available ABSTRACT Speech disorders are common manifestations of Parkinson´s disease. Objective To compare speech articulation in patients according to age at onset of the disease. Methods Fifty patients was divided into two groups: Group I consisted of 30 patients with age at onset between 40 and 55 years; Group II consisted of 20 patients with age at onset after 65 years. All patients were evaluated based on the Unified Parkinson’s Disease Rating Scale scores, Hoehn and Yahr scale and speech evaluation by perceptual and acoustical analysis. Results There was no statistically significant difference between the two groups regarding neurological involvement and speech characteristics. Correlation analysis indicated differences in speech articulation in relation to staging and axial scores of rigidity and bradykinesia for middle and late-onset. Conclusions Impairment of speech articulation did not correlate with age at onset of disease, but was positively related with disease duration and higher scores in both groups.

[The Articulator of Primary Health Care Program: an innovative proposal for qualification of Primary Health Care].

Science.gov (United States)

Doricci, Giovanna Cabral; Guanaes-Lorenzi, Carla; Pereira, Maria José Bistafa

2017-06-01

In 2009, the Secretary of State for Health of Sao Paulo created a Program with a view to qualify the primary care in the state. This proposal includes a new job function, namely the articulator of primary care. Due to the scarcity of information about the practice of these new professionals in the scientific literature, this article seeks to analyze how articulators interpret their function and how they describe their daily routines. Thirteen articulators were interviewed. The interviews were duly analyzed by qualitative delineation. The results describe three themes: 1)Roles of the articulator: technical communicator and political advisor; 2) Activities performed to comply with the expected roles, examples being diagnosis of the municipalities, negotiation of proposals, participation in meetings, visits to municipalities; and 3) Challenges of the role, which are configured as challenges to the health reform process, examples being the lack of physical and human resources, activities of professionals in the medical-centered model, among others. The conclusion drawn is that the Program has great potential to provide input for the development and enhancement of Primary Care. Nevertheless, there are a series of challenges to be overcome, namely challenges to the context per se.

Does working memory change with age? The interactions of concurrent articulation with the effects of word length and acoustic confusion.

Science.gov (United States)

Bireta, Tamra J; Fine, Hope C; Vanwormer, Lisa A

2013-01-01

The effects of acoustic confusion (phonological similarity), word length, and concurrent articulation (articulatory suppression) are cited as support for Working Memory's phonological loop component (e.g., Baddeley, 2000 , Psychonomic Bulletin and Review, 7, 544). Research has focused on younger adults, with no studies examining whether concurrent articulation reduces the word length and acoustic confusion effects among older adults. In the current study, younger and older adults were given lists of similar and dissimilar letters (Experiment 1) or long and short words (Experiment 2) for immediate serial reconstruction of order. Items were presented visually or auditorily, with or without concurrent articulation. As expected, younger and older adults demonstrated effects of acoustic confusion, word length, and concurrent articulation. Further, concurrent articulation reduced the effects of acoustic confusion and word length equally for younger and older adults. This suggests that age-related differences occur in overall performance, but do not reflect an age-related deficiency in the functioning of the phonological loop component of working memory.

Dynamics of an articulated shell type flexible rotor

International Nuclear Information System (INIS)

Suleman, M.; Khan, M.Z.; Nazeer, M.M.

2001-01-01

An ultra high speed articulated shell type flexible rotor supported by low stiffness flexible bearing encounters a number of dynamic problems while traversing towards or from the service speed. The major and critical problems that arise are: Synchronous and Sub-synchronous vibration due to instabilities. Structural resonances and rubs due to eccentricities of structure and magnetic bearing. The symptoms of these troubles, their root causes and remedial measures are highlighted and discussed in this work. (author)

Articulation Speaks to Executive Function: An Investigation in 4- to 6-Year-Olds

Directory of Open Access Journals (Sweden)

Nicole Netelenbos

2018-02-01

Full Text Available Executive function (EF and language learning play a prominent role in early childhood development. Empirical research continues to point to a concurrent relation between these two faculties. What has been given little attention, however, is the association between EF and speech articulation abilities in children. This study investigated this relation in children aged 4–6 years. Significant correlations indicated that children with better EF [via parental report of the Behavior Rating Inventory of Executive Function (BRIEF inventory] exhibited stronger speech sound production abilities in the articulation of the “s” and “sh” sounds. Furthermore, regression analyses revealed that the Global Executive Composite (GEC of EF as measured by the BRIEF, served as a predictor for speech sound proficiency and that speech sound proficiency served as a predictor for the GEC. Together, these results demonstrate the imbricated nature of EF and speech sound production while bearing theoretical and practical implications. From a theoretical standpoint, the close link between EF and speech articulation may indicate a common ontogenetic pathway. From a practical perspective, the results suggest that children with speech difficulties could be at higher risk for EF deficits.

Articulated Multimedia Physics, Lesson 3, The Arithmetic of Scientific Notation.

Science.gov (United States)

New York Inst. of Tech., Old Westbury.

As the third lesson of the Articulated Multimedia Physics Course, instructional materials are presented in this study guide. An introductory description is given for scientific notation methods. The subject content is provided in scrambled form, and the use of matrix transparencies is required for students to control their learning process.…

The Effect of Articulation Style on Perception of Modulated Tempo

Science.gov (United States)

Geringer, John M.; Madsen, Clifford K.; MacLeod, Rebecca B.; Kevin Droe

2006-01-01

We investigated the effect of legato and staccato articulation styles on the perception of modulated tempos. Ninety music majors served as participants. Listeners heard music examples that had been selected from two pieces, each of which included staccato and legato passages. Excerpts were presented to listeners in three conditions of tempo…

Compromising Composition: Articulating Quality and Practice in Distance Education Policy.

Science.gov (United States)

Carnegie, Teena A. M.

Policies exist in every aspect of people's lives from the landlord's policy on pets to the government's policy on literacy. As such, policy becomes the ideal place to begin to examine the articulation of distance education because policy inevitably marks the site where different kinds of political discourses and social practices intersect. By…

Beyond the functional matrix hypothesis: a network null model of human skull growth for the formation of bone articulations.

Science.gov (United States)

Esteve-Altava, Borja; Rasskin-Gutman, Diego

2014-09-01

Craniofacial sutures and synchondroses form the boundaries among bones in the human skull, providing functional, developmental and evolutionary information. Bone articulations in the skull arise due to interactions between genetic regulatory mechanisms and epigenetic factors such as functional matrices (soft tissues and cranial cavities), which mediate bone growth. These matrices are largely acknowledged for their influence on shaping the bones of the skull; however, it is not fully understood to what extent functional matrices mediate the formation of bone articulations. Aiming to identify whether or not functional matrices are key developmental factors guiding the formation of bone articulations, we have built a network null model of the skull that simulates unconstrained bone growth. This null model predicts bone articulations that arise due to a process of bone growth that is uniform in rate, direction and timing. By comparing predicted articulations with the actual bone articulations of the human skull, we have identified which boundaries specifically need the presence of functional matrices for their formation. We show that functional matrices are necessary to connect facial bones, whereas an unconstrained bone growth is sufficient to connect non-facial bones. This finding challenges the role of the brain in the formation of boundaries between bones in the braincase without neglecting its effect on skull shape. Ultimately, our null model suggests where to look for modified developmental mechanisms promoting changes in bone growth patterns that could affect the development and evolution of the head skeleton. © 2014 Anatomical Society.

Assessing the effect of physical differences in the articulation of consonants and vowels on audiovisual temporal perception

Science.gov (United States)

Vatakis, Argiro; Maragos, Petros; Rodomagoulakis, Isidoros; Spence, Charles

2012-01-01

We investigated how the physical differences associated with the articulation of speech affect the temporal aspects of audiovisual speech perception. Video clips of consonants and vowels uttered by three different speakers were presented. The video clips were analyzed using an auditory-visual signal saliency model in order to compare signal saliency and behavioral data. Participants made temporal order judgments (TOJs) regarding which speech-stream (auditory or visual) had been presented first. The sensitivity of participants' TOJs and the point of subjective simultaneity (PSS) were analyzed as a function of the place, manner of articulation, and voicing for consonants, and the height/backness of the tongue and lip-roundedness for vowels. We expected that in the case of the place of articulation and roundedness, where the visual-speech signal is more salient, temporal perception of speech would be modulated by the visual-speech signal. No such effect was expected for the manner of articulation or height. The results demonstrate that for place and manner of articulation, participants' temporal percept was affected (although not always significantly) by highly-salient speech-signals with the visual-signals requiring smaller visual-leads at the PSS. This was not the case when height was evaluated. These findings suggest that in the case of audiovisual speech perception, a highly salient visual-speech signal may lead to higher probabilities regarding the identity of the auditory-signal that modulate the temporal window of multisensory integration of the speech-stimulus. PMID:23060756

[Assessment of the efficiency of the auditory training in children with dyslalia and auditory processing disorders].

Science.gov (United States)

Włodarczyk, Elżbieta; Szkiełkowska, Agata; Skarżyński, Henryk; Piłka, Adam

2011-01-01

To assess effectiveness of the auditory training in children with dyslalia and central auditory processing disorders. Material consisted of 50 children aged 7-9-years-old. Children with articulation disorders stayed under long-term speech therapy care in the Auditory and Phoniatrics Clinic. All children were examined by a laryngologist and a phoniatrician. Assessment included tonal and impedance audiometry and speech therapists' and psychologist's consultations. Additionally, a set of electrophysiological examinations was performed - registration of N2, P2, N2, P2, P300 waves and psychoacoustic test of central auditory functions: FPT - frequency pattern test. Next children took part in the regular auditory training and attended speech therapy. Speech assessment followed treatment and therapy, again psychoacoustic tests were performed and P300 cortical potentials were recorded. After that statistical analyses were performed. Analyses revealed that application of auditory training in patients with dyslalia and other central auditory disorders is very efficient. Auditory training may be a very efficient therapy supporting speech therapy in children suffering from dyslalia coexisting with articulation and central auditory disorders and in children with educational problems of audiogenic origin. Copyright © 2011 Polish Otolaryngology Society. Published by Elsevier Urban & Partner (Poland). All rights reserved.

A clinical technique for virtual articulator mounting with natural head position by using calibrated stereophotogrammetry.

Science.gov (United States)

Lam, Walter Y H; Hsung, Richard T C; Choi, Winnie W S; Luk, Henry W K; Cheng, Leo Y Y; Pow, Edmond H N

2017-09-29

Accurate articulator-mounted casts are essential for occlusion analysis and for fabrication of dental prostheses. Although the axis orbital plane has been commonly used as the reference horizontal plane, some clinicians prefer to register the horizontal plane with a spirit level when the patient is in the natural head position (NHP) to avoid anatomic landmark variations. This article presents a digital workflow for registering the patient's horizontal plane in NHP on a virtual articulator. An orientation reference board is used to calibrate a stereophotogrammetry device and a 3-dimensional facial photograph with the patient in NHP. The horizontal plane can then be automatically registered to the patient's virtual model and aligned to the virtual articulator at the transverse horizontal axis level. This technique showed good repeatability with positional differences of less than 1 degree and 1 mm in 5 repeated measurements in 1 patient. Copyright © 2017 Editorial Council for the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.

A highly articulated robotic surgical system for minimally invasive surgery.

Science.gov (United States)

Ota, Takeyoshi; Degani, Amir; Schwartzman, David; Zubiate, Brett; McGarvey, Jeremy; Choset, Howie; Zenati, Marco A

2009-04-01

We developed a novel, highly articulated robotic surgical system (CardioARM) to enable minimally invasive intrapericardial therapeutic delivery through a subxiphoid approach. We performed preliminary proof of concept studies in a porcine preparation by performing epicardial ablation. CardioARM is a robotic surgical system having an articulated design to provide unlimited but controllable flexibility. The CardioARM consists of serially connected, rigid cyclindrical links housing flexible working ports through which catheter-based tools for therapy and imaging can be advanced. The CardioARM is controlled by a computer-driven, user interface, which is operated outside the operative field. In six experimental subjects, the CardioARM was introduced percutaneously through a subxiphoid access. A commercial 5-French radiofrequency ablation catheter was introduced through the working port, which was then used to guide deployment. In all subjects, regional ("linear") left atrial ablation was successfully achieved without complications. Based on these preliminary studies, we believe that the CardioARM promises to enable deployment of a number of epicardium-based therapies. Improvements in imaging techniques will likely facilitate increasingly complex procedures.

Prevention of violence against women: challenges in the articulation of an intersetorial network

Directory of Open Access Journals (Sweden)

Patrícia Krieger Grossi

2012-11-01

Full Text Available This article has the objective of highlighting the importance of sectoriality action in the prevention of violence against women through the articulation of different social actors concerned and committed to the reduction of the violence against women rates, and consequently with a more fair and equal society. These challenges in the articulation of the network of protection services for women in domestic violence are illustrated by the managers of the social welfare policies, coordinators of women´s policies and professionals that work in Reference Centers for Women, Reference Centers of Social Welfare (CRAS and Specialized Reference Center of Social Welfare (CREAS in municipalities of the State of Rio Grande do Sul.

Articulating social science in the wild of global natures?

DEFF Research Database (Denmark)

Blok, Anders

2014-01-01

Building on multisited ethnographic case studies, this paper seeks to contrastively compare the demonstration and articulation formats of two social science expert cultures—economics and anthropology—enrolled ‘in the wild’ of transnational environmental politics. How, the paper asks, do different......) similarities, related to credible expert demonstrations in transnational environmental contexts. The paper concludes by discussing the implications of this claim for STS self-reflection on its politics of methods....

Effects of fit and motive articulation on sponsorship response

OpenAIRE

Abramova, Anna

2013-01-01

This study is dedicated to finding the right combination between provision of fit and motive articulation to provide the best sponsorship response. The paper integrates different factors used in the sponsorship literature and other academic articles in the field of marketing into a conceptual model. Such mediating variables as corporate ability, corporate social responsibility, sponsor attitude and persuasion knowledge and moderating variables as involvement, self-congruence and frequency of ...

Dynamically adapted context-specific hyper-articulation: Feedback from interlocutors affects speakers’ subsequent pronunciations

Science.gov (United States)

Buz, Esteban; Tanenhaus, Michael K.; Jaeger, T. Florian

2016-01-01

We ask whether speakers can adapt their productions when feedback from their interlocutors suggests that previous productions were perceptually confusable. To address this question, we use a novel web-based task-oriented paradigm for speech recording, in which participants produce instructions towards a (simulated) partner with naturalistic response times. We manipulate (1) whether a target word with a voiceless plosive (e.g., pill) occurs in the presence of a voiced competitor (bill) or an unrelated word (food) and (2) whether or not the simulated partner occasionally misunderstands the target word. Speakers hyper-articulated the target word when a voiced competitor was present. Moreover, the size of the hyper-articulation effect was nearly doubled when partners occasionally misunderstood the instruction. A novel type of distributional analysis further suggests that hyper-articulation did not change the target of production, but rather reduced the probability of perceptually ambiguous or confusable productions. These results were obtained in the absence of explicit clarification requests, and persisted across words and over trials. Our findings suggest that speakers adapt their pronunciations based on the perceived communicative success of their previous productions in the current environment. We discuss why speakers make adaptive changes to their speech and what mechanisms might underlie speakers’ ability to do so. PMID:27375344

Increasing the stability of the articulated lorry at braking by locking the fifth wheel coupling

Science.gov (United States)

Skotnikov, G. I.; Jileykin, M. M.; Komissarov, A. I.

2018-02-01

The jackknifing of the articulated lorry is determined by the loss of stability with respect to the vertical axis of the fifth wheel coupling, which can be caused by the failure of the brake system, the displacement of the center of mass of the semitrailer or tractor from the longitudinal axis of the vehicle, the road parameters (longitudinal and transverse slopes), the difference in the friction coefficients under the sides of the articulated lorry. In this regard, the issue of creating devices that prevent the jackknifing, and their control systems is important. A method is proposed for maintaining the stability of the movement of articulated lorry when braking both on a straight line and in a turn by blocking the relative rotation of the tractor and the trailer. Blocking occurs due to the creation of a stabilizing moment in the direction opposite to the angular rate of folding. To test the developed algorithm for locking the fifth wheel coupling, a mathematical model of the spatial motion of the articulated lorry was developed, including the models of interaction of an elastic tire with a rigid terrain, suspension systems, transmission, steering, fifth-wheel coupling. The efficiency and effectiveness of the coupling locking control system is proved by comparing the results of the simulation of a straight-line braking and braking in turn. It is shown that the application of the control system significantly increases the stability of the road train.

Effects of joint alignment and type on mechanical properties of thermoplastic articulated ankle-foot orthosis.

Science.gov (United States)

Gao, Fan; Carlton, William; Kapp, Susan

2011-06-01

Articulated or hinged ankle-foot orthosis (AFO) allow more range of motion. However, quantitative investigation on articulated AFO is still sparse. The objective of the study was to quantitatively investigate effects of alignment and joint types on mechanical properties of the thermoplastic articulated AFO. Tamarack dorsiflexion assist flexure joints with three durometers (75, 85 and 95) and free motion joint were tested. The AFO joint was aligned with the center of the motor shaft (surrogate ankle joint), 10 mm superior, inferior, anterior and posterior with respect to the motor shaft center. The AFO was passively moved from 20° plantar flexion to 15° dorsiflexion at a speed of 10°/s using a motorized device. Mechanical properties including index of hysteresis, passive resistance torque and quasi-static stiffness (at neutral, 5°, 10° and 15° in plantar flexion) were quantified. Significant effects of joint types and joint alignment on the mechanical properties of an articulated thermoplastic AFO were revealed. Specifically, center alignment showed minimum resistance and stiffness while anterior and posterior alignment showed significantly higher resistance and stiffness. The dorsiflexion assist torques at neutral position ranged from 0.69 ± 0.09 to 1.88 ± 0.10 Nm. Anterior and posterior alignment should be avoided as much as possible. The current study suggested that anterior and posterior alignment be avoided as much as possible in clinical practice due to potential skin irritation and increase in stress around the ankle joint.

Steering assistance for backing up articulated vehicles

Directory of Open Access Journals (Sweden)

Dieter Zoebel

2003-10-01

Full Text Available Articulated vehicles belong to the category of nonholonomous wheelers. Under the aspect of control theory they require a sophisticated handling. This corresponds to the experience of unexercised drivers, for instance maneuvering a car and its caravan into a parking box. In this context some adequate advice for the right steering movements would give an appreciable assistance. Here a visual assistance is proposed and realized. The decisive advice for the driver is derived from kinematic modeling. The system is designed to be integrated into standard cars and trucks. For testing purposes the actual system has been incorporated into an existing backing up simulator.

Encouraging Student Reflection and Articulation Using a Learning Companion: A Commentary

Science.gov (United States)

Goodman, Bradley; Linton, Frank; Gaimari, Robert

2016-01-01

Our 1998 paper "Encouraging Student Reflection and Articulation using a Learning Companion" (Goodman et al. 1998) was a stepping stone in the progression of learning companions for intelligent tutoring systems (ITS). A simulated learning companion, acting as a peer in an intelligent tutoring environment ensures the availability of a…

Gender Recognition from Unconstrained and Articulated Human Body

Directory of Open Access Journals (Sweden)

Qin Wu

2014-01-01

human body images acquired from an unconstrained environment in the real world. A systematic study of some critical issues in body-based gender recognition, such as which body parts are informative, how many body parts are needed to combine together, and what representations are good for articulated body-based gender recognition, is also presented. This paper also pursues data fusion schemes and efficient feature dimensionality reduction based on the partial least squares estimation. Extensive experiments are performed on two unconstrained databases which have not been explored before for gender recognition.

Simulated stability tests of a small articulated tractor designed for extreme-sloped vineyards

Directory of Open Access Journals (Sweden)

F. Mazzetto

2013-09-01

Full Text Available A new reversible wheeled articulated tractor, designed to work in terraced vineyards trained with “pergola” system, common in mountain areas, is here described in its latest version and analysed through numerical simulations. This tractor has small dimensions, necessary to operate in that environment, and its central articulation has two rotational degrees-offreedom. The described features are surely strong design points but could be critical for vehicle’s stability, as affecting the supporting base’s dimensions and shape. Therefore, the tractor was equipped with a new automatic safety system: a self-locking articulation activated by contact sensors on the wheels. This device makes the vehicle partially-rigid in case of lateral unbalancing, so that rollover can happen only by overcoming the whole vehicle mass. A mathematical description of vehicle-ground interactions was implemented to deeply inquiry the tractor behaviour in different configurations (straight, angled at increasing values of ground slope; roll and pitch stability indexes were then computed and used for comparisons with conventional tractors. Thanks to the low centre-of-gravity, the resulting rollover angle with the vehicle in straight configuration is promising (43.8°→96%: it is greater than the maximum lateral (20°→36% and frontal (38°→78% slope angle ever recorded on terraced vineyards. The same rollover angle is lower when the tractor turns.

Implications of Articulating Machinery on Operator Line of Sight and Efficacy of Camera Based Proximity Detection Systems

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Nicholas Schwabe

2017-07-01

Full Text Available The underground mining industry, and some above ground operations, rely on the use of heavy equipment that articulates to navigate corners in the tight confines of the tunnels. Poor line of sight (LOS has been identified as a problem for safe operation of this machinery. Proximity detection systems, such as a video system designed to provide a 360 degree view around the machine have been implemented to improve the available LOS for the operator. A four-camera system was modeled in a computer environment to assess LOS on a 3D cad model of a typical, articulated machine. When positioned without any articulation, the system is excellent at removing blind spots for a machine driving straight forward or backward in a straight tunnel. Further analysis reveals that when the machine articulates in a simulated corner section, some camera locations are no longer useful for improving LOS into the corner. In some cases, the operator has a superior view into the corner, when compared to the best available view from the camera. The work points to the need to integrate proximity detection systems at the design, build, and manufacture stage, and to consider proper policy and procedures that would address the gains and limits of the systems prior to implementation.

Articulated, Performance-Based Instruction Objectives Guide for Automotive Mechanics. Final Document. Revised.

Science.gov (United States)

Henderson, William Edward, Jr.

Developed during a project designed to provide continuous, performance-based vocational training at the secondary and postsecondary levels, this instructional guide is intended to help teachers implement a laterally and vertically articulated secondary level automotive mechanics program. Introductory materials include descriptions of Automotive…

Reprogramming the articulated robotic arm for glass handling by using Arduino microcontroller

Science.gov (United States)

Razali, Zol Bahri; Kader, Mohamed Mydin M. Abdul; Kadir, Mohd Asmadi Akmal; Daud, Mohd Hisam

2017-09-01

The application of articulated robotic arm in industries is raised due to the expansion of using robot to replace human task, especially for the harmful tasks. However a few problems happen with the program use to schedule the arm, Thus the purpose of this project is to design, fabricate and integrate an articulated robotic arm by using Arduino microcontroller for handling glass sorting system. This project was designed to segregate glass and non-glass waste which would be pioneer step for recycling. This robotic arm has four servo motors to operate as a whole; three for the body and one for holding mechanism. This intelligent system is controlled by Arduino microcontroller and build with optical sensor to provide the distinguish objects that will be handled. Solidworks model was used to produce the detail design of the robotic arm and make the mechanical properties analysis by using a CAD software.

Communication disorders in individuals with cleft lip and palate: An overview

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Nagarajan Roopa

2009-10-01

Full Text Available The need for an interdisciplinary approach in the comprehensive management of individuals with cleft lip and palate is well recognized. This article provides an introduction to communication disorders in individuals with cleft lip and palate for members of cleft care teams. The speech pathologist is involved in identifying those infants who are at risk for communication disorders and also for initiating early intervention to prevent or mitigate communication disorders caused by the cleft. Even with early cleft repair, some children exhibit ′cleft palate speech′ characterized by atypical consonant productions, abnormal nasal resonance, abnormal nasal airflow, altered laryngeal voice quality, and nasal or facial grimaces. These manifestations are evaluated to identify those that (a are developmental, (b can be corrected through speech therapy alone, and, (c those that may require both surgery and speech therapy. Speech is evaluated perceptually using several types of stimuli. It is important to identify compensatory and obligatory errors in articulation. When velopharyngeal dysfunction is suspected, the assessment should include at least one direct measure such as nasoendoscopy or videofluoroscopy. This provides information about the adequacy of the velopharyngeal valve for speech production, and is useful for planning further management of velopharyngeal dysfunction. The basic principle of speech therapy in cleft lip and palate is to establish the correct placement of the articulators and appropriate air flow. Appropriate feedback is important during therapy for establishing the correct patterns of speech.

Contribution to the automatic command in robotics - Application to the command by microprocessors of the articulated systems; Contribution a la commande automatique en robotique. Application a la commande par microprocesseurs des manipulateurs articules

Energy Technology Data Exchange (ETDEWEB)

Al Mouhamed, Mayez

1982-01-29

The first part of the present paper deals with the main methods of changing the coordinates for a general articulated system. After a definition of the coordinates changing, we propose a coordination system designed for easy programming of the movements. Its characteristic is to permit the action anywhere on the manipulated object. The second part deals with the force regulation problem. For this purpose we have developed a general force sensor. The informations delivered by the sensor are used by force regulators which are intended for the automatic assembly of subsystems. In the third part the dynamic problem of the articulated systems is exposed. We present a new method which allows to determine dynamic parameters from appropriate motions of the robot. These parameters are then used to implement the dynamic control. Several applications, using the powerful microprocessor INTEL 8086 and its arithmetic coprocessor 8087, are presented, in order to demonstrate the performances gained. (author) [French] Dans la premiere partie de ce memoire, nous exposons les principales methodes de changement de coordonnees pour un systeme articule general. Apres une definition adequate de ce dernier, nous proposons un systeme de coordination permettant une programmation facile des mouvements. Sa caracteristique est de prendre comme centre d'action un point quelconque de l'objet manipule. Dans la deuxieme partie, nous etudions la regulation en effort. Pour cela nous avons developpe un capteur de forces general. Les informations que delivre ce dernier sont utilisees par des regulateurs d'effort adaptes au contexte de l'assemblage automatique des pieces. Dans la troisieme partie, nous exposons une nouvelle methode de commande dynamique des systemes articules. Nous obtenons des parametres dynamiques du robot a partir de mouvements appropries. Ces derniers sont ensuite utilises dans l'elaboration des commandes. Des applications utilisant le microprocesseur INTEL 8086 avec son

Oral and Hand Movement Speeds Are Associated with Expressive Language Ability in Children with Speech Sound Disorder

Science.gov (United States)

Peter, Beate

2012-01-01

This study tested the hypothesis that children with speech sound disorder have generalized slowed motor speeds. It evaluated associations among oral and hand motor speeds and measures of speech (articulation and phonology) and language (receptive vocabulary, sentence comprehension, sentence imitation), in 11 children with moderate to severe SSD…

The Effect of Otitis Media on Articulation in Children with Cerebral Palsy.

Science.gov (United States)

Van der Vyver, Marguerite; And Others

1988-01-01

A study involving 20 Afrikaans-speaking children with cerebral palsy found that recurrent otitis media in early childhood had a negative effect on articulation abilities of the 7 to 11-year-old children but that other factors such as intelligence also played a role. (JDD)

Electropalatography in the Description and Treatment of Speech Disorders in Five Children with Cerebral Palsy

Science.gov (United States)

Nordberg, Ann; Carlsson, Goran; Lohmander, Anette

2011-01-01

Some children with cerebral palsy have articulation disorders that are resistant to conventional speech therapy. The aim of this study was to investigate whether the visual feedback method of electropalatography (EPG) could be an effective tool for treating five children (mean age of 9.4 years) with dysarthria and cerebral palsy and to explore…

[The temporo-mandibular articulation].

Science.gov (United States)

Dargaud, J; Vinkka-Puhakka, H

2004-04-01

The standing posture of humans has created both morphological and functional adaptations in the temporo-mandibular joint and the masticatory function. This biped state is the one of the most important characteristic of human evolution. It is furthermore the agent determining most of the functional changes in the whole body. This survey will be carried out in several levels including, a descriptive anatomy, biomechanics, radiological imaging, functioning in the articulation of TMJ. The descriptive anatomic picture will be obtained by the traditional dissection techniques. 20 TMJ joints are dissected from 10 cadavers: 7 cadavers, 65-75 year old, 3 cadavers, 60-65 year old. The x-rays are lateral view and the subjects of the radiological imaging are young's, adults and olds: 1, 3 y-old Male; 1, 7 y-old Female; 1, 14 y-old Female; 10, 19-23 y-old Male; 1, 26 y-old Female; 1, 34 y-old Male; 1, 75 y-old Female. The anatomic elements in the TMJ well resembled the ones described in the literature of the capsule, the ligament, the masticator muscles (masseter, temporal, medial and lateral pterygoids). The temporo-mandibular ligament proved to be difficult to separate from the capsule in some of the specimens. Sometimes it was not always found after a dissection.

Articulation prostheses made of polymers which are improved by ionizing radiations

International Nuclear Information System (INIS)

Gaussens, G.; Nicaise, M.; Tran, K.O.

1981-10-01

Articulation prostheses for the human body are generally made of the couple very high molecular weight polyethylene-special steels. Polyethylene properties are modified by ionizing radiations: creep resistance is improved and friction coefficient is decreased. Modifications are controlled by the choice of radiation dose and dose rate. Wear tests have been made on hip prostheses [fr

The Articulation of Secondary and Post-Secondary Vocational Education Programs. Workshop Products.

Science.gov (United States)

Keene State Coll., NH.

As a result of the cooperative efforts in articulation by secondary/postsecondary instructor teams, six packages representing the occupational areas of child care, culinary arts, electronics, health occupations, power mechanics, and industrial welding were developed. Each package contains the following three components: a series of job titles…

Activating a Teaching Philosophy in Social Work Education: Articulation, Implementation, and Evaluation

Science.gov (United States)

Owens, Larry W.; Miller, J. Jay; Grise-Owens, Erlene

2014-01-01

This article describes how to develop a comprehensive teaching philosophy from articulation through implementation to evaluation. Using literature and teaching-learning experiences, we discuss pragmatic steps for using a teaching philosophy to inform, engage, and evaluate teaching-learning. We promote an integrated teaching philosophy to ensure…

Articulations of eroticism and race: Domestic service in Latin America

OpenAIRE

Wade, Peter

2013-01-01

'Service', particularly 'domestic service', operates as a specific articulation or intersection of processes of race, class, gender and age that reiterates images of the sexual desirability of some women racially marked by blackness or indigeneity in Latin America. The sexualisation of racially subordinated people has been linked to the exercise of power. This article focuses on an aspect of subordination related to the condition of being a servant, and the 'domestication' and 'acculturation'...

Evaluation of articulation simulation system using artificial maxillectomy models.

Science.gov (United States)

Elbashti, M E; Hattori, M; Sumita, Y I; Taniguchi, H

2015-09-01

Acoustic evaluation is valuable for guiding the treatment of maxillofacial defects and determining the effectiveness of rehabilitation with an obturator prosthesis. Model simulations are important in terms of pre-surgical planning and pre- and post-operative speech function. This study aimed to evaluate the acoustic characteristics of voice generated by an articulation simulation system using a vocal tract model with or without artificial maxillectomy defects. More specifically, we aimed to establish a speech simulation system for maxillectomy defect models that both surgeons and maxillofacial prosthodontists can use in guiding treatment planning. Artificially simulated maxillectomy defects were prepared according to Aramany's classification (Classes I-VI) in a three-dimensional vocal tract plaster model of a subject uttering the vowel /a/. Formant and nasalance acoustic data were analysed using Computerized Speech Lab and the Nasometer, respectively. Formants and nasalance of simulated /a/ sounds were successfully detected and analysed. Values of Formants 1 and 2 for the non-defect model were 675.43 and 976.64 Hz, respectively. Median values of Formants 1 and 2 for the defect models were 634.36 and 1026.84 Hz, respectively. Nasalance was 11% in the non-defect model, whereas median nasalance was 28% in the defect models. The results suggest that an articulation simulation system can be used to help surgeons and maxillofacial prosthodontists to plan post-surgical defects that will be facilitate maxillofacial rehabilitation. © 2015 John Wiley & Sons Ltd.

Articulated Multimedia Physics, Lesson 14, Gases, The Gas Laws, and Absolute Temperature.

Science.gov (United States)

New York Inst. of Tech., Old Westbury.

As the fourteenth lesson of the Articulated Multimedia Physics Course, instructional materials are presented in this study guide with relation to gases, gas laws, and absolute temperature. The topics are concerned with the kinetic theory of gases, thermometric scales, Charles' law, ideal gases, Boyle's law, absolute zero, and gas pressures. The…

3D-printing and mechanics of bio-inspired articulated and multi-material structures.

Science.gov (United States)

Porter, Michael M; Ravikumar, Nakul; Barthelat, Francois; Martini, Roberto

2017-09-01

3D-printing technologies allow researchers to build simplified physical models of complex biological systems to more easily investigate their mechanics. In recent years, a number of 3D-printed structures inspired by the dermal armors of various fishes have been developed to study their multiple mechanical functionalities, including flexible protection, improved hydrodynamics, body support, or tail prehensility. Natural fish armors are generally classified according to their shape, material and structural properties as elasmoid scales, ganoid scales, placoid scales, carapace scutes, or bony plates. Each type of dermal armor forms distinct articulation patterns that facilitate different functional advantages. In this paper, we highlight recent studies that developed 3D-printed structures not only to inform the design and application of some articulated and multi-material structures, but also to explain the mechanics of the natural biological systems they mimic. Copyright © 2017 Elsevier Ltd. All rights reserved.

The Effects of Otitis Media on Articulation. Final Report for 1982-1983.

Science.gov (United States)

Roberts, Joanne Erwick

The study examined the relationship in 44 preschoolers (considered to have varying degrees of predicted risk for poor school performance) between otitis media (middle ear disease) during the first 3 years of life and speech production (articulation) during preschool and school age years. Speech production accuracy was assessed by the number of…

Transfer and Articulation Issues between California Community Colleges and California State University

Science.gov (United States)

Tucker, Linda

2013-01-01

Purpose: The primary purpose of this study was to discover common transfer and articulation practices and to determine what practices aid in the implementation of the STAR Act between California Community Colleges and the California State University. The review of literature revealed a lack of research on the application of practices in transfer…

Digital Hardware Realization of Forward and Inverse Kinematics for a Five-Axis Articulated Robot Arm

Directory of Open Access Journals (Sweden)

Bui Thi Hai Linh

2015-01-01

Full Text Available When robot arm performs a motion control, it needs to calculate a complicated algorithm of forward and inverse kinematics which consumes much CPU time and certainty slows down the motion speed of robot arm. Therefore, to solve this issue, the development of a hardware realization of forward and inverse kinematics for an articulated robot arm is investigated. In this paper, the formulation of the forward and inverse kinematics for a five-axis articulated robot arm is derived firstly. Then, the computations algorithm and its hardware implementation are described. Further, very high speed integrated circuits hardware description language (VHDL is applied to describe the overall hardware behavior of forward and inverse kinematics. Additionally, finite state machine (FSM is applied for reducing the hardware resource usage. Finally, for verifying the correctness of forward and inverse kinematics for the five-axis articulated robot arm, a cosimulation work is constructed by ModelSim and Simulink. The hardware of the forward and inverse kinematics is run by ModelSim and a test bench which generates stimulus to ModelSim and displays the output response is taken in Simulink. Under this design, the forward and inverse kinematics algorithms can be completed within one microsecond.

[Neuropsychological profiles associated with the children's oral language disorders].

Science.gov (United States)

Conde-Guzón, P A; Conde-Guzón, M J; Bartolomé-Albistegui, M T; Quirós-Expósito, P

Oral language disorders constitute a group of syndromes with a high prevalence among the childhood population. They form a heterogeneous group that ranges from simple problems in articulating a phoneme (dyslalias) to severe disorders affecting communication, such as children's dysarthrias and aphasias. In this paper our objective is to review the neuropsychological profiles of children who manifest different oral language disorders. Due to the wide range of clinical pictures and causations covered by children's oral language disorders, very few systematic reviews have been conducted to obtain an overall view of the neuropsychological profiles of these children. Although the linguistic signs and symptoms of these disorders are well understood, the associated neuropsychological signs and symptoms have not been studied. In some cases, these neuropsychological signs cause greater learning problems in children than the actual language problems themselves. Childhood language disorders are associated with different neuropsychological problems. The most commonly associated neuropsychological deficits are problems involving memory, attention, executive functions, motor dysfunctions, temporal perception, tactile recognition, body scheme, spatial orientation and difficulties in visual discrimination. Mnemonic disorders (essentially in short-term and working auditory memory) are usually a common denominator in the different clinical pictures that make up language disorders. The mnemonic impairment associated to dyslalias deserves special attention as this disorder is sometimes similar to that seen in language problems deriving from clinical pictures with important neurological alterations.

Articulating nursing in an interprofessional world.

Science.gov (United States)

Sommerfeldt, Susan C

2013-11-01

It is essential that nurses in practice clearly articulate their role in interprofessional clinical settings. Assumptions, stereotypes, power differentials and miscommunication can complicate the interaction of healthcare professionals when clarity does not exist about nurses' knowledge, skills and roles. Conflicting views among nurse scholars as to the nature of nursing knowledge and its relationship to practice complicate the task of nurses in explaining their performance and role to others in interprofessional environments. Interprofessionality is potentially misunderstood by nurse leaders, practitioners and educators, isolating nurses in an increasingly inter-disciplinary healthcare system. The theorization of contemporary nursing is explored through the views and perspectives of current nurse scholars. The ability to explain nursing knowledge, skills and roles to others in interprofessional interactions is a nursing competency, as well as an interprofessional one. Nurses, nurse leaders and nurse educators are challenged to engage in interprofessionalism so as to have an influence in the evolution of healthcare education and practice environments. Copyright © 2013 Elsevier Ltd. All rights reserved.

Articulating addiction in alcohol and other drug policy: A multiverse of habits.

Science.gov (United States)

Fraser, Suzanne

2016-05-01

Concepts of addiction differ across time and place. This article is based on an international research project currently exploring this variation and change in concepts of addiction, in particular in the field of alcohol and other drug (AOD) use. Taking AOD policy in Australia and Canada as its empirical focus, and in-depth interviews with policy makers, service providers and advocates in each country as its key method (N=60), the article compares the addiction concepts articulated by professionals working in each setting. Drawing on Bruno Latour's theoretical work on the body and his proposal for a better science based on the 'articulation of differences', it explores the accounts of addiction offered across the Australian and Canadian project sites, identifying a shared dynamic in all: the juggling of difference and unity in discussions of the nature of addiction, its composite parts and how best to respond to it. The article maps two simultaneous trajectories in the data - one moving towards difference in participants' insistence on the multitude and diversity of factors that make up addiction problems and solutions, and the other towards unity in their tendency to return to narrow disease models of addiction in uncomfortable, sometimes dissonant, strategic choices. As I will argue, the AOD professionals interviewed for my project operate in two modes treated as distinct in Latour's proposal: in turning to reifying disease labels of addiction they take for granted, and work within, a 'universe of essences', but in articulating the multiplicity and diversity of addiction, they grope towards a vision of a 'multiverse of habits'. The article concludes by addressing this tension directly, scrutinising its practical implications for the development of policy and delivery of services in the future, asking how new thinking, and therefore new opportunities, might be allowed to emerge. Crown Copyright © 2015. Published by Elsevier B.V. All rights reserved.

[Minimal emotional dysfunction and first impression formation in personality disorders].

Science.gov (United States)

Linden, M; Vilain, M

2011-01-01

"Minimal cerebral dysfunctions" are isolated impairments of basic mental functions, which are elements of complex functions like speech. The best described are cognitive dysfunctions such as reading and writing problems, dyscalculia, attention deficits, but also motor dysfunctions such as problems with articulation, hyperactivity or impulsivity. Personality disorders can be characterized by isolated emotional dysfunctions in relation to emotional adequacy, intensity and responsivity. For example, paranoid personality disorders can be characterized by continuous and inadequate distrust, as a disorder of emotional adequacy. Schizoid personality disorders can be characterized by low expressive emotionality, as a disorder of effect intensity, or dissocial personality disorders can be characterized by emotional non-responsivity. Minimal emotional dysfunctions cause interactional misunderstandings because of the psychology of "first impression formation". Studies have shown that in 100 ms persons build up complex and lasting emotional judgements about other persons. Therefore, minimal emotional dysfunctions result in interactional problems and adjustment disorders and in corresponding cognitive schemata.From the concept of minimal emotional dysfunctions specific psychotherapeutic interventions in respect to the patient-therapist relationship, the diagnostic process, the clarification of emotions and reality testing, and especially an understanding of personality disorders as impairment and "selection, optimization, and compensation" as a way of coping can be derived.

Morphometric Differences of Vocal Tract Articulators in Different Loudness Conditions in Singing.

Science.gov (United States)

Echternach, Matthias; Burk, Fabian; Burdumy, Michael; Traser, Louisa; Richter, Bernhard

2016-01-01

Dynamic MRI analysis of phonation has gathered interest in voice and speech physiology. However, there are limited data addressing the extent to which articulation is dependent on loudness. 12 professional singer subjects of different voice classifications were analysed concerning the vocal tract profiles recorded with dynamic real-time MRI with 25fps in different pitch and loudness conditions. The subjects were asked to sing ascending scales on the vowel /a/ in three loudness conditions (comfortable=mf, very soft=pp, very loud=ff, respectively). Furthermore, fundamental frequency and sound pressure level were analysed from the simultaneously recorded optical audio signal after noise cancellation. The data show articulatory differences with respect to changes of both pitch and loudness. Here, lip opening and pharynx width were increased. While the vertical larynx position was rising with pitch it was lower for greater loudness. Especially, the lip opening and pharynx width were more strongly correlated with the sound pressure level than with pitch. For the vowel /a/ loudness has an effect on articulation during singing which should be considered when articulatory vocal tract data are interpreted.

Hybrid markerless tracking of complex articulated motion in golf swings.

Science.gov (United States)

Fung, Sim Kwoh; Sundaraj, Kenneth; Ahamed, Nizam Uddin; Kiang, Lam Chee; Nadarajah, Sivadev; Sahayadhas, Arun; Ali, Md Asraf; Islam, Md Anamul; Palaniappan, Rajkumar

2014-04-01

Sports video tracking is a research topic that has attained increasing attention due to its high commercial potential. A number of sports, including tennis, soccer, gymnastics, running, golf, badminton and cricket have been utilised to display the novel ideas in sports motion tracking. The main challenge associated with this research concerns the extraction of a highly complex articulated motion from a video scene. Our research focuses on the development of a markerless human motion tracking system that tracks the major body parts of an athlete straight from a sports broadcast video. We proposed a hybrid tracking method, which consists of a combination of three algorithms (pyramidal Lucas-Kanade optical flow (LK), normalised correlation-based template matching and background subtraction), to track the golfer's head, body, hands, shoulders, knees and feet during a full swing. We then match, track and map the results onto a 2D articulated human stick model to represent the pose of the golfer over time. Our work was tested using two video broadcasts of a golfer, and we obtained satisfactory results. The current outcomes of this research can play an important role in enhancing the performance of a golfer, provide vital information to sports medicine practitioners by providing technically sound guidance on movements and should assist to diminish the risk of golfing injuries. Copyright © 2013 Elsevier Ltd. All rights reserved.

Lost in Translation: Preparing Students to Articulate the Meaning of a College Degree

Science.gov (United States)

DuRose, Lisa; Stebleton, Michael J.

2016-01-01

The authors contend that many undergraduate students lack the ability to deftly articulate the value of their college degree, including the competencies they acquire through classroom learning and extracurricular activities. Despite the positive impact of experiential education opportunities such as service learning and internships, there is a…

Connections of Grasping and Horizontal Hand Movements with Articulation in Czech Speakers

Czech Academy of Sciences Publication Activity Database

Tiainen, M.; Lukavský, Jiří; Tiippana, K.; Vainio, M.; Šimko, J.; Felisberti, F.; Vainio, L.

2017-01-01

Roč. 8, duben (2017), s. 1-10, č. článku 516. ISSN 1664-1078 Grant - others:AV ČR(CZ) StrategieAV21/14 Program:StrategieAV Institutional support: RVO:68081740 Keywords : articulation * motor actions * language * grasping * manual gestures * speech * manual actions Subject RIV: AN - Psychology OBOR OECD: Cognitive sciences Impact factor: 2.323, year: 2016

The NET articulated boom: Preliminary investigations and justification for a full scale prototype

International Nuclear Information System (INIS)

Suppan, A.

1990-12-01

The articulated boom system is the favourite in-vessel handling system for NET which will be used to maintain or replace in-vessel components during short term interventions. The testbed EDITH is the prototype of this system and is the logical step between the proof of principle of the system, which is already performed by the JET articulated boom, and the operational equipment for NET. EDITH is required to demonstrate that maintenance of plasma facing components can be carried out with the anticipated reliability and time. To achieve this aim EDITH is based on the experience of the JET boom and will be constructed in full scale, supplemented by a full scale mock-up. A further goal of EDITH is to allow the testing of boom components and subassemblies. The results of preliminary investigations for the boom are summarized, the need of the testbed EDITH and a full scale mock-up is discussed and both EDITH and the mock-up are described. (orig.) [de

Desi Films: Articulating Images of South Asian Identity in a Global Communication Environment

Directory of Open Access Journals (Sweden)

Rekha Sharma

2011-01-01

Full Text Available Although India itself has been an important source of information about the Indian identity for Western audiences, a specialized genre of desi media have also garnered more recognition in recent years. Desi films—movies created by and/or for South Asian immigrants—are capable of reaching large numbers of people regardless of their educational level, economic status, or linguistic proficiency. Most are produced in English or with English subtitles and are easily accessible in most areas, either in theatres, video rental stores, libraries, or via Internet movie sites. This paper examines Indian diasporic films as a vehicle for cultural articulation and debate. First, it provides a theoretical foundation of hegemony and resistance with regard to notions of ethnicity and immigrants’ articulations of identity in interstitial zones. Second, it discusses sources of hegemony from Indian and Western media. Third, it explores the creation of a hybrid identity as reflected in Indian diasporic films, pointing out some of the themes and conventions of this emerging genre.

Influence of timing of delayed hard palate closure on articulation skills in 3-year-old Danish children with unilateral cleft lip and palate

DEFF Research Database (Denmark)

Willadsen, Elisabeth; Boers, Maria; Schöps, Antje

2017-01-01

Background Differing results regarding articulation skills in young children with cleft palate (CP) have been reported and often interpreted as a consequence of different surgical protocols. Aims To assess the influence of different timing of hard palate closure in a two-stage procedure on articu......Background Differing results regarding articulation skills in young children with cleft palate (CP) have been reported and often interpreted as a consequence of different surgical protocols. Aims To assess the influence of different timing of hard palate closure in a two-stage procedure...... on articulation skills in 3-year-olds born with unilateral cleft lip and palate (UCLP). Secondary aims were to compare results with peers without CP, and to investigate if there are gender differences in articulation skills. Furthermore, burden of treatment was to be estimated in terms of secondary surgery...

Articulation of Native Cartilage Against Different Femoral Component Materials. Oxidized Zirconium Damages Cartilage Less Than Cobalt-Chrome.

Science.gov (United States)

Vanlommel, Jan; De Corte, Ronny; Luyckx, Jean Philippe; Anderson, Melissa; Labey, Luc; Bellemans, Johan

2017-01-01

Oxidized zirconium (OxZr) is produced by thermally driven oxidization creating an oxidized surface with the properties of a ceramic at the top of the Zr metal substrate. OxZr is much harder and has a lower coefficient of friction than cobalt-chrome (CoCr), both leading to better wear characteristics. We evaluated and compared damage to the cartilage of porcine patella plugs, articulating against OxZr vs CoCr. Our hypothesis was that, owing to its better wear properties, OxZr would damage cartilage less than CoCr. If this is true, OxZr might be a better material for the femoral component during total knee arthroplasty if the patella is not resurfaced. Twenty-one plugs from porcine patellae were prepared and tested in a reciprocating pin-on-disk machine while lubricated with bovine serum and under a constant load. Three different configurations were tested: cartilage-cartilage as the control group, cartilage-OxZr, and cartilage-CoCr. Macroscopic appearance, cartilage thickness, and the modified Mankin score were evaluated after 400,000 wear cycles. The control group showed statistically significant less damage than plugs articulating against both other materials. Cartilage plugs articulating against OxZr were statistically significantly less damaged than those articulating against CoCr. Although replacing cartilage by an implant always leads to deterioration of the cartilage counterface, OxZr results in less damage than CoCr. The use of OxZr might thus be preferable to CoCr in case of total knee arthroplasty without patella resurfacing. Copyright © 2016 Elsevier Inc. All rights reserved.

Influence of timing of delayed hard palate closure on articulation skills in 3-year-old Danish children with unilateral cleft lip and palate

DEFF Research Database (Denmark)

Willadsen, Elisabeth; Boers, Maria; Schöps, Antje

2018-01-01

BACKGROUND: Differing results regarding articulation skills in young children with cleft palate (CP) have been reported and often interpreted as a consequence of different surgical protocols. AIMS: To assess the influence of different timing of hard palate closure in a two-stage procedure...... on articulation skills in 3-year-olds born with unilateral cleft lip and palate (UCLP). Secondary aims were to compare results with peers without CP, and to investigate if there are gender differences in articulation skills. Furthermore, burden of treatment was to be estimated in terms of secondary surgery...

An electromyographic and kinematic comparison between an extendable conveyor system and an articulating belt conveyor used for truck loading and unloading tasks.

Science.gov (United States)

Lavender, Steven A; Nagavarapu, Shasank; Allread, W Gary

2017-01-01

Many retail distribution centers (DCs) manually load and unload boxes into or out of trailers and shipping containers. This study investigated whether an articulating belt conveyor with a height adjustable platform, positioned at the end of an extendable conveyor, significantly reduces shoulder and back muscle loading and the spine kinematics associated with these tasks. Electromyographic and kinematic data were collected from eight volunteer employees as trailers at a shoe DC were unloaded and from nine volunteer employees as trailers at an apparel DC were loaded. Participants in this repeated measures study handled boxes with a conventional powered extendable conveyor system and with the articulating belt conveyor positioned at the end of the extendable conveyor. Bilaterally the normalized activation levels of the erector spinae and anterior deltoid muscles were reduced when loading and unloading boxes with the articulating belt conveyor. Spine movement speeds were also reduced with the articulating conveyor. Copyright © 2016 Elsevier Ltd. All rights reserved.

A blind algorithm for recovering articulator positions from acoustics

Energy Technology Data Exchange (ETDEWEB)

Hogden, John E [Los Alamos National Laboratory

2009-01-01

MIMICRI is a signal-processing algorithm that has been shown to blindly infer and invert memoryless nonlinear functions of unobservable bandlimited signals, such as the mapping from the unobservable positions of the speech articulators to observable speech sounds. We review results of using MIMICRI on toy problems and on human speech data. We note that MIMICRI requires that the user specify two parameters: the dimensionality and pass-band of the unobservable signals. We show how to use cross-validation to help estimate the passband. An unexpected consequence of this work is that it helps separate signals with overlapping frequency bands.

Treatment of complex osteoarticular injuries of the elbow with external unilateral articulated fixator

International Nuclear Information System (INIS)

Cuellar Gallo, Lazaro; Portilla Carrillo, Armando; Calderon Uribe, Oscar; Calvache Currea, Gustavo Adolfo; Satizabal Azuero, Carlos Arnulfo

2001-01-01

Previous observations suggest that conventional treatment of complex injuries about the elbow such as open; reduction and internal Fixation might lead, to bad functional outcome. The authors present a descriptive, observational and prospective study of a series of cases, on 8 patients, average age 37.8 years (25-28 years) 6 men and 2 women with complex injury of the elbow. Due to trauma which etiology is summarized as follows intraarticular comminuted open fracture secondary to gunshot wound 5 patients (62.5%); luxofracture 2 patients (25%), lntraarticular comminuted closed fracture 1 patient (12.5%). The patients where followed for 8 to 20 months. Were performed en 75% of patients open reduction, internal fixation of radial resection of radial head en 25% when comminute fracture of the head was found. All patients were treated with an external unilateral articulated fixation on the elbow, in order to protect the internal fixation, allow early joint motion and give early mobility. All patients were evaluated with Mayo scale, obtaining good results, with externals fixation treatment. In one case (12.5%) a dyaphiseal fracture of the humerus, occurred as an inherent complication secondary to the use of the external fixation, after it's withdrawal. This patient was treated with open reduction and internal fixation of the fracture, without significant impairment of the final result. Early results suggest that the use of unilateral articulated external fixator for the treatment of complex fractures about the elbow has great advantages over the other treatment techniques, such as the early motion of the elbow, dynamic protection of the internal fixation and preservation of the articulate stability, even when ligament injury is present

76 FR 16747 - Applications for New Awards; Hispanic-Serving Institutions STEM and Articulation Programs

Science.gov (United States)

2011-03-25

..., or mathematics and to develop model transfer and articulation agreements between 2-year Hispanic... income students attaining degrees in the fields of science, technology, engineering, or mathematics..., Taxpayer Identification Number, and Central Contractor Registry: To do business with the Department of...

Effectiveness of an Articulated Knee Hyperextension Orthosis in Genu Recurvatum

Directory of Open Access Journals (Sweden)

Rahul ASRM

2014-08-01

Full Text Available Genu Recurvatum is a deformity of knee joint that tends to push it backwards by excessive extension in tibio-femoral joints. This poses a significant challenge because of technical difficulties and a high incidence of recurrence. This report describes a 63 years old male diagnosed as post-polio residual paralysis who showed excessive genu recurvatum of his left knee during long standing and walking. An Articulated Knee Hyperextension Orthosis (KAFO was tried to check its effectiveness in terms of gait and energy expenditure.

Feasibility of an LPN to ADN Articulation Program at LSUA. Vocational Education Research.

Science.gov (United States)

Louisiana State Univ., Alexandria.

A feasibility study examined the need for and likelihood of success for a Licensed Practical Nurse (LPN) to Associate Degree in Nursing (ADN) articulation program for Louisiana State University (LSU) at Alexandria. Following a literature search on the theoretical establishment and implementation of such a program, three schools with successful…

Antibiotic-impregnated articulating cement spacer for infected total knee arthroplasty

Directory of Open Access Journals (Sweden)

Parag Garg

2011-01-01

Full Text Available Background : Standard treatment of chronic infected total knee arthroplasty (TKA is a two-stage revision, the first step being placement of an antibiotic-impregnated cement spacer. Here we describe the results of a new technique (modification of the Goldstien′s technique for intraoperative manufacture of a customized articulating spacer at minimal cost and with relatively good conformity and longevity. Materials and Methods : Thirty-six infected knees underwent this procedure from June 2002 to May 2007. The technique consists of using the freshened femur and tibia interface as molds wrapped in a tin foil for manufacturing the two components of the spacer with antibiotic-impregnated methyl methycrylate cement. We used the spacer and the femoral component of the trial set of a TKA system to mold them to perfect articulation. We also reinforced the spacer with a K-wire scaffold to prevent fracture of the cement mantle in the last 21 cases. Results : All 36 knees showed excellent results in terms of infection control, mobility, and stability. There was significant improvement in the WOMAC and Knee Society Scores (20 and 39 points respectively. There were two fractures of the spacers in the initial 15 cases that did not have K-wire scaffolding but none in the last 21 that had reinforcement. Conclusion : This technique provides a more conforming spacer, with good range of motion and stability. The reinforcement helps in preventing the fracture of the cement mantle and is cost effective.

Morphometric Differences of Vocal Tract Articulators in Different Loudness Conditions in Singing.

Directory of Open Access Journals (Sweden)

Matthias Echternach

Full Text Available Dynamic MRI analysis of phonation has gathered interest in voice and speech physiology. However, there are limited data addressing the extent to which articulation is dependent on loudness.12 professional singer subjects of different voice classifications were analysed concerning the vocal tract profiles recorded with dynamic real-time MRI with 25fps in different pitch and loudness conditions. The subjects were asked to sing ascending scales on the vowel /a/ in three loudness conditions (comfortable=mf, very soft=pp, very loud=ff, respectively. Furthermore, fundamental frequency and sound pressure level were analysed from the simultaneously recorded optical audio signal after noise cancellation.The data show articulatory differences with respect to changes of both pitch and loudness. Here, lip opening and pharynx width were increased. While the vertical larynx position was rising with pitch it was lower for greater loudness. Especially, the lip opening and pharynx width were more strongly correlated with the sound pressure level than with pitch.For the vowel /a/ loudness has an effect on articulation during singing which should be considered when articulatory vocal tract data are interpreted.

Component for articulated offshore loading towers

Energy Technology Data Exchange (ETDEWEB)

Backhaus, H.

1980-09-01

The construction of offshore natural gas liquefaction plants must be regarded as technically feasible and the marketing prospects for LNG - a source of clean burning energy - appear excellent. Nevertheless, the optimum loading procedure for LNG tankers in the - sometimes adverse - offshore environment is still a matter under discussion by the experts - with a tendency to adopt and adapt well-proven components from the offshore crude oil sector. Here, articulated towers are in use for tankerloading and the crude oil is pumped at ambient temperature through the cardan joint of the tower itself. In the case of the cryogenic liquid LNG, this method would entail intolerable risks. Leaks and subsequent LNG spills within the tower joint will cause low temperature-embrittlement and most likely damage the cardan connection at the tower's base plate on the sea bed. The described submarine joint for ultra-cold liquids, which has the same cardanic properties as the cardan joint of the tower is completely separated from the latter. Thus a cryogenic leakage in this submarine joint will under no circumstance reach and affect the tower cardan.

Parkinson Disease Detection from Speech Articulation Neuromechanics

Directory of Open Access Journals (Sweden)

Pedro Gómez-Vilda

2017-08-01

Full Text Available Aim: The research described is intended to give a description of articulation dynamics as a correlate of the kinematic behavior of the jaw-tongue biomechanical system, encoded as a probability distribution of an absolute joint velocity. This distribution may be used in detecting and grading speech from patients affected by neurodegenerative illnesses, as Parkinson Disease.Hypothesis: The work hypothesis is that the probability density function of the absolute joint velocity includes information on the stability of phonation when applied to sustained vowels, as well as on fluency if applied to connected speech.Methods: A dataset of sustained vowels recorded from Parkinson Disease patients is contrasted with similar recordings from normative subjects. The probability distribution of the absolute kinematic velocity of the jaw-tongue system is extracted from each utterance. A Random Least Squares Feed-Forward Network (RLSFN has been used as a binary classifier working on the pathological and normative datasets in a leave-one-out strategy. Monte Carlo simulations have been conducted to estimate the influence of the stochastic nature of the classifier. Two datasets for each gender were tested (males and females including 26 normative and 53 pathological subjects in the male set, and 25 normative and 38 pathological in the female set.Results: Male and female data subsets were tested in single runs, yielding equal error rates under 0.6% (Accuracy over 99.4%. Due to the stochastic nature of each experiment, Monte Carlo runs were conducted to test the reliability of the methodology. The average detection results after 200 Montecarlo runs of a 200 hyperplane hidden layer RLSFN are given in terms of Sensitivity (males: 0.9946, females: 0.9942, Specificity (males: 0.9944, females: 0.9941 and Accuracy (males: 0.9945, females: 0.9942. The area under the ROC curve is 0.9947 (males and 0.9945 (females. The equal error rate is 0.0054 (males and 0.0057 (females

Optical Fiber Sensors For Monitoring Joint Articulation And Chest Expansion Of A Human Body

Science.gov (United States)

Muhs, Jeffrey D.; Allison, Stephen W.

1997-12-23

Fiber-optic sensors employing optical fibers of elastomeric material are incorporated in devices adapted to be worn by human beings in joint and chest regions for the purpose of monitoring and measuring the extent of joint articulation and chest expansion especially with respect to time.

The physics of articulated toys—a jumping and rotating kangaroo

International Nuclear Information System (INIS)

Güémez, J; Fiolhais, M

2014-01-01

We describe the physics of an articulated toy with an internal source of energy provided by a spiral spring. The toy is a funny low cost kangaroo which jumps and rotates. The study consists of mechanical and thermodynamical analyses that make use of the Newton and centre of mass equations, the rotational equations and the first law of thermodynamics. This amazing toy provides a nice demonstrative example of how new physics insights can be brought about when links with thermodynamics are established in the study of mechanical systems. (papers)

Articulated System to Analyse Digital Media (ASADM: a proposal about what and how to study online newspapers

Directory of Open Access Journals (Sweden)

Lluís Codina

2014-05-01

Full Text Available Throughout this article, we are presenting a proposal to conduct digital media studies as one of the first deliverables of an ongoing research project. This proposal, which we are calling “Articulated System to Analyse Digital Media” (ASADM: consists of a set of concepts presented through specific terminology, and of a group of articulated elements allowing to determine what we call the what (parameters and how (indicators of any future study regarding online newspapers or digital media. Thus, we obtain an operative analysis protocol as a deliverable. In between, we characterize the typical context of the sort of studies that constitute the context for our proposal.

A new attachment for mock surgery in Hanau wide-vue arcon articulator

Directory of Open Access Journals (Sweden)

Kanhu Charan Sahoo

2014-01-01

Full Text Available Over few decades, orthognathic surgery has become a routine procedure for the correction of facial deformities. People have become more aware and concerned about maxillofacial deformations. Articulators are of interest to both orthodontic and maxillofacial team as they facilitate the planning of combined orthodontic treatment and orthognathic surgery. A new attachment was designed in order to the limitations of the manual method.

Jazz Style and Articulation: How to Get Your Band or Choir to Swing

Science.gov (United States)

Tolson, Jerry

2012-01-01

The interpretation of jazz style is crucial to the element of swing in any jazz ensemble performance. Today, many charts for both large and small instrumental and vocal jazz ensembles are well marked with articulations and expression markings. However, in some cases, there is nothing to guide the musician. This article addresses some common jazz…

Wear, creep, and frictional heating of femoral implant articulating surfaces and the effect on long-term performance--Part II, Friction, heating, and torque.

Science.gov (United States)

Davidson, J A; Schwartz, G; Lynch, G; Gir, S

1988-04-01

In Part I, (J.A. Davidson and G. Schwartz, "Wear, creep, and frictional heating of femoral implant articulating surfaces and the effect on long-term performance--Part I, A review," J. Biomed. Mater. Res., 21, 000-000 (1987) it was shown that lubrication of the artificial hip joint was complex and that long-term performance is governed by the combined wear, creep, and to a lesser extent, oxidation degradation of the articulating materials. Importantly, it was shown that a tendency for heating exists during articulation in the hip joint and that elevated temperatures can increase the wear, creep, and oxidation degradation rate of UHMWPE. The present study was performed to examine closely the propensity to generate heat during articulation in a hip joint simulator. The systems investigated were polished Co-Cr-Mo alloy articulating against UHMWPE, polished alumina ceramic against UHMWPE, and polished alumina against itself. Frictional torque was also evaluated for each system at various levels of applied loads. A walking load history was used in both the frictional heating and torque tests. The majority of tests were performed with 5 mL of water lubricant. However, the effect of various concentrations of hyaluronic acid was also evaluated. Results showed frictional heating to occur in all three systems, reaching an equilibrium after roughly 30 min articulation time. Ceramic systems showed reduced levels of heating compared to the cobalt alloy-UHMWPE system. The level of frictional torque for each system ranked similar to their respective tendencies to generate heat. Hyaluronic acid had little effect, while dry conditions and the presence of small quantities of bone cement powder in water lubricant significantly increased frictional torque.

Is It Necessary to Articulate a Research Methodology When Reporting on Theoretical Research?

Science.gov (United States)

Smith, Juliana; Small, Rosalie

2017-01-01

In this paper the authors share their insights on whether it is necessary to articulate a research methodology when reporting on theoretical research. Initially the authors, one being a supervisor and the other, a PhD student and a colleague, were confronted with the question during supervision and writing of a thesis on theoretical research.…

Differentiation and Articulation in Tertiary Education Systems : A Study of Twelve African Countries

OpenAIRE

Ng'ethe, Njuguna; Subotzky, George; Afeti, George

2008-01-01

This study strives to sketch an initial map of the extent and nature of institutional and program differentiation within African systems of tertiary education. In doing so, it also seeks to chart the patterns of articulation that have emerged or been consciously put in place between the different institutional types (such as public universities, private universities, polytechnics, training...

Robust MR spine detection using hierarchical learning and local articulated model.

Science.gov (United States)

Zhan, Yiqiang; Maneesh, Dewan; Harder, Martin; Zhou, Xiang Sean

2012-01-01

A clinically acceptable auto-spine detection system, i.e., localization and labeling of vertebrae and inter-vertebral discs, is required to have high robustness, in particular to severe diseases (e.g., scoliosis) and imaging artifacts (e.g. metal artifacts in MR). Our method aims to achieve this goal with two novel components. First, instead of treating vertebrae/discs as either repetitive components or completely independent entities, we emulate a radiologist and use a hierarchial strategy to learn detectors dedicated to anchor (distinctive) vertebrae, bundle (non-distinctive) vertebrae and inter-vertebral discs, respectively. At run-time, anchor vertebrae are detected concurrently to provide redundant and distributed appearance cues robust to local imaging artifacts. Bundle vertebrae detectors provide candidates of vertebrae with subtle appearance differences, whose labels are mutually determined by anchor vertebrae to gain additional robustness. Disc locations are derived from a cloud of responses from disc detectors, which is robust to sporadic voxel-level errors. Second, owing to the non-rigidness of spine anatomies, we employ a local articulated model to effectively model the spatial relations across vertebrae and discs. The local articulated model fuses appearance cues from different detectors in a way that is robust to abnormal spine geometry resulting from severe diseases. Our method is validated by 300 MR spine scout scans and exhibits robust performance, especially to cases with severe diseases and imaging artifacts.

Gender Equality in Media Content and Operations: Articulating Academic Studies and Policy--A Presentation

Science.gov (United States)

Lourenço, Mirta Edith

2016-01-01

In this article, Mirta Lourenço explains the prospects when higher education studies interface with UNESCO for policy change. The baseline is that education institutions' articulation with media organizations, media professionals, policy-makers, and civil society groups is essential to achieve gender equality in and through media.

Influence of Timing of Delayed Hard Palate Closure on Articulation Skills in 3-Year-Old Danish Children with Unilateral Cleft Lip and Palate

Science.gov (United States)

Willadsen, Elisabeth; Boers, Maria; Schöps, Antje; Kisling-Møller, Mia; Nielsen, Joan Bogh; Jørgensen, Line Dahl; Andersen, Mikael; Bolund, Stig; Andersen, Helene Søgaard

2018-01-01

Background: Differing results regarding articulation skills in young children with cleft palate (CP) have been reported and often interpreted as a consequence of different surgical protocols. Aims: To assess the influence of different timing of hard palate closure in a two-stage procedure on articulation skills in 3-year-olds born with unilateral…

Audio Logo Recognition, Reduced Articulation and Coding Orientation

DEFF Research Database (Denmark)

Bonde, Anders; Hansen, Allan Grutt

2013-01-01

In this paper we explore an interdisciplinary theoretical framework for the analysis of corporate audio logos and their effectiveness regarding recognisability and identification. This is done by combining three different academic disciplines: 1) social semiotics, 2) branding theory and 3) music...... on musicological descriptors. We consider as a starting point Kress and Van Leeuwen’s (1996, 2006) conceptualisation of ‘modality’, which is central to their ‘visual grammar’ theory and subsequently extended to auditory expressions such as spoken language, music and sound effects (Van Leeuwen, 1999). While...... connected to notions of brand recognisability and brand identification, thus resulting in the concept of ‘Reduced Articulation Form’ (RAF). The concept has been tested empirically through a survey of 137 upper secondary school students. On the basis of a conditioning experiment, manipulating five existing...

Articulated pipes conveying fluid pulsating with high frequency

DEFF Research Database (Denmark)

Jensen, Jakob Søndergaard

1999-01-01

Stability and nonlinear dynamics of two articulated pipes conveying fluid with a high-frequency pulsating component is investigated. The non-autonomous model equations are converted into autonomous equations by approximating the fast excitation terms with slowly varying terms. The downward hanging...... pipe position will lose stability if the mean flow speed exceeds a certain critical value. Adding a pulsating component to the fluid flow is shown to stabilize the hanging position for high values of the ratio between fluid and pipe-mass, and to marginally destabilize this position for low ratios....... An approximate nonlinear solution for small-amplitude flutter oscillations is obtained using a fifth-order multiple scales perturbation method, and large-amplitude oscillations are examined by numerical integration of the autonomous model equations, using a path-following algorithm. The pulsating fluid component...

A technique for the quantification of the 3D connectivity of thin articulations in bony sutures.

Science.gov (United States)

Maloul, Asmaa; Fialkov, Jeffrey; Hojjat, Seyed-Parsa; Whyne, Cari M

2010-04-19

The anatomy and development of cranial and facial sutures have been studied in detail using histological sections, 2D radiographs and more recently CT imaging. However, little attention has been paid to evaluating and quantifying the connectivity of these thin cortical bone articulations. More recent technological advances such as micro-CT imaging has the potential to be used to provide quantitative measurements of 3D connectivity in bony articulations. This study presents a new technique for quantifying the connectivity of bony projections inside cranial and facial sutures using a combination of skeletonization, thinning algorithms and 3D intensity mapping. The technique is demonstrated in five sutures through semi-automated analysis and image processing of microCT scans. In the sagittal, coronal and frontozygomatic sutures an average bone connectivity of 6.6-11.6% was found with multiple bony projections providing an interlocking structure between adjacent bones. Much higher bone connectivity was present in the zygomaticotemporal and zygomaticomaxillary sutures (22.7-37.4%) with few bony projections. This method combining microCT scanning and image processing techniques was successfully used to quantify the connectivity of thin bone articulations and allowed detailed assessment of sutural fusion in 3D. The wider application of this technique may allow quantification of connectivity in other structures, in particular fracture healing of long bones. Copyright 2009 Elsevier Ltd. All rights reserved.

Major upgrade of the articulated inspection arm control system to fulfill daily operation requirements

Energy Technology Data Exchange (ETDEWEB)

Pastor, P., E-mail: patrick.pastor@cea.fr [CEA, IRFM, Institut de Recherche sur la Fusion par confinement Magnétique (France); Villedieu, E.; Allegretti, L.; Vincent, B.; Barbuti, A.; Bruno, V.; Coquillat, P.; Dechelle, C.; Gargiulo, L.; Le, R.; Malard, P.; Martinez, A.; Nouailletas, R. [CEA, IRFM, Institut de Recherche sur la Fusion par confinement Magnétique (France); Yuntao, Song; Yong, Cheng; Chen, Liu; Hansheng, Feng; Shanshuang, Shi [ASIPP, Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui (China)

2015-10-15

Highlights: • We propose an overview of the work which has been done to upgrade the control system of the AIA robot (articulated inspection arm) to fulfill daily operation requirements for tokamak inspection. • The control system is based on the use of new position sensors, new electronics design and new supervisor software. • Final tests are ongoing in the EAST scale 1 tokamak mock-up. Routine operation of the robot at EAST will start in the beginning of 2015. - Abstract: An articulated inspection arm (AIA) has been developed by CEA for visual inspection between pulses inside the Tore Supra tokamak vacuum vessel without breaking temperature and vacuum conditions. The eight meters length robot is composed of a shuttle and six articulated segments with a video camera at its end. A demonstration prototype has been achieved in 2008 at Tore Supra (Gargiulo, 2007; Houry, 2008; Perrot, 2003). A project to upgrade the AIA into a fully operational robot has been undertaken by IRFM and ASIPP in an Associated Laboratory. It will be in operation first in the EAST machine and afterwards in Tore Supra in its WEST (W/Tungsten Environment in Steady-state Tokamak) configuration where it is of paramount importance to survey possible degradation of W component surface. The control system of the robot has been extensively upgraded. The effort has been focused on three areas: (1) improvement of the arm position accuracy, (2) increase of the operational robustness, (3) use of a powerful graphical user interface including simulation of trajectories and robot deployment capabilities in a 3D viewer environment. The aim of this paper is to detail the architecture of the AIA control system.

Flutter instability of freely hanging articulated pipes conveying fluid

Science.gov (United States)

Schouveiler, Lionel; Chermette, Félix

2018-03-01

We experimentally investigate the stability of freely hanging articulated pipes made of rigid segments connected by flexible joints and with their displacements constrained in a vertical plane. When the velocity of the fluid conveyed by the pipe is increased, flutter-type instability occurs above a critical value. The critical velocity and the characteristics of the flutter modes (frequency, amplitude, and shape) are determined as a function of the number n of segments into the pipe which is varied from 2 to 5. Experimental results are compared to predictions from linear stability analysis extending previous studies by taking into account damping due to the dissipation in the joints. Qualitative agreement is found and the limits of the analysis are discussed.

Optimization of Front Axle Suspension System of Articulated Dump Truck

DEFF Research Database (Denmark)

Langer, Thomas Heegaard; Christensen, Brian B.; Mouritsen, Ole Ø.

2010-01-01

that has been subjected to comfort improvement is a two axle articulated dump truck. The comfort has been in terms of whole body vibration exposure and the overall improvement has been made possible by adding front axle suspension. However, a hydraulic stabilizing system between the tractor and trailer...... to evaluate the whole body vibrations. By use of a multibody simulation model of the dump truck the whole body vibration exposure has been computed using the predefined work cycle as model input. The design parameters comprise the components of the hydraulic subsystem of the suspension, i.e., the size...

Articulated inspection arm for ITER, a demonstration in the Tore Supra tokamak

Energy Technology Data Exchange (ETDEWEB)

Cordier, J.J.; Gargiulo, L.; Grisolia, C.; Samaille, F. [Association Euratom-CEA Cadarache, 13 - Saint-Paul-lez-Durance (France). Dept. de Recherches sur la Fusion Controlee; Friconneau, J.P.; Perrot, Y. [CEA Fontenay-aux-Roses, LIST Robotics and Interactive Systems Unit, 92 (France); Palmer, J.D. [Max-Planck-Institut fuer Plasmaphysik Boltzmannstr.2, Garching (Germany)

2003-07-01

The aim of this program is to demonstrate for ITER the feasibility of an in-vessel remote handling inspection using a long reach, limited payload carrier (1 to 10 kg) for penetration of the ITER chamber through the openings. This device is dedicated to close inspection of the Plasma Facing Components (PFC). An articulated demonstrator called articulated inspection arm (AIA) has been manufactured. A feasibility study of a full AIA operation in Tore Supra was performed, taking into account ITER reference requirements. A scale one demonstration of the AIA under ITER relevant condition is feasible on Tore Supra and would give significant improvement in research results for ITER remote Handling equipment. The test of the AIA demonstrator behaviour is foreseen in 2005 in real Tokamak conditions. The paper presents the full robot concept, the results of the first test campaign, the AIA new design and its integration on Tore Supra. Several potential uses of the AIA for the in vessel components inspection are being studied such as PFC visual inspection, water loop leak testing, laser ablation for wall detritiation and carbon dust and flakes removal are foreseen as utilities to be placed at the AIA head. These various systems are described in the paper.

Articulated inspection arm for ITER, a demonstration in the Tore Supra tokamak

International Nuclear Information System (INIS)

Cordier, J.J.; Gargiulo, L.; Grisolia, C.; Samaille, F.; Palmer, J.D.

2003-01-01

The aim of this program is to demonstrate for ITER the feasibility of an in-vessel remote handling inspection using a long reach, limited payload carrier (1 to 10 kg) for penetration of the ITER chamber through the openings. This device is dedicated to close inspection of the Plasma Facing Components (PFC). An articulated demonstrator called articulated inspection arm (AIA) has been manufactured. A feasibility study of a full AIA operation in Tore Supra was performed, taking into account ITER reference requirements. A scale one demonstration of the AIA under ITER relevant condition is feasible on Tore Supra and would give significant improvement in research results for ITER remote Handling equipment. The test of the AIA demonstrator behaviour is foreseen in 2005 in real Tokamak conditions. The paper presents the full robot concept, the results of the first test campaign, the AIA new design and its integration on Tore Supra. Several potential uses of the AIA for the in vessel components inspection are being studied such as PFC visual inspection, water loop leak testing, laser ablation for wall detritiation and carbon dust and flakes removal are foreseen as utilities to be placed at the AIA head. These various systems are described in the paper

Viewing speech in action: speech articulation videos in the public domain that demonstrate the sounds of the International Phonetic Alphabet (IPA)

OpenAIRE

Nakai, S.; Beavan, D.; Lawson, E.; Leplâtre, G.; Scobbie, J. M.; Stuart-Smith, J.

2016-01-01

In this article, we introduce recently released, publicly available resources, which allow users to watch videos of hidden articulators (e.g. the tongue) during the production of various types of sounds found in the world’s languages. The articulation videos on these resources are linked to a clickable International Phonetic Alphabet chart ([International Phonetic Association. 1999. Handbook of the International Phonetic Association: A Guide to the Use of the International Phonetic Alphabet. ...

Structural analysis of a speech disorder of children with a mild mental retardation

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Franc Smole

2004-05-01

Full Text Available The aim of this research was to define the structure of speech disorder of children with a mild mental retardation. 100 subjects were chosen among pupils from the 1st to the 4th grade of elementary school who were under logopaedic treatment. To determine speech comprehension Reynell's developmental scales were used and for evaluation of speech articulation the Three-position test for articulation evaluation. With the Bender test we determined a child's mental age as well as defined the signs of psychological disfunction of organic nature. For the field of phonological consciousness a Test of reading and writing disturbances was applied. Speech fluency was evaluated by the Riley test. Evaluation scales were adapted for determining speech-language levels and motor skills of speech organs and hands. Data on results in psychological test and on the family was summed up from the diagnostic treatment guidance documents. Social behaviour in school was evaluated by their teachers. Six factors which hierarchicallydefine the structure of speech disorder were determined by the factor analysis. We found out that signs of a child's brain lesion are the factor which has the most influence on a child's mental age. The results of this research might be helpful to logopaedists in determining a logopaedic treatment for children with a mild mental retardation.

Bioecology of an articulated coralline alga Amphiroa fragilissima from Anjuna, Goa, Central Western Coast of India

Digital Repository Service at National Institute of Oceanography (India)

Ambiye, V.; Untawale, A.G

An articulated coralline alga Amphiroa fragilissima L. Lam. was found to exhibit spasmogenic and hypotensive activities due to the presence of a biogenic amine. This biologically active alga was studied for its bioecology. Its thallus is multiaxial...

Articulation of Industrial R&D with Higher Education in the Telecommunications Sector in South Africa

Science.gov (United States)

Paterson, Andrew

2005-01-01

This article shows how and why particular higher education?industry research and development networks articulate with the South African telecommunications sector. The range of competing and complementary data telecommunications technologies available in the South African market provide varying opportunities for enterprises to engage in R&D. Two…

Transforaminal lumbar interbody graft placement using an articulating delivery arm facilitates increased segmental lordosis with superior anterior and midline graft placement.

Science.gov (United States)

Shau, David N; Parker, Scott L; Mendenhall, Stephen K; Zuckerman, Scott L; Godil, Saniya S; Devin, Clinton J; McGirt, Matthew J

2015-05-01

Transforaminal lumbar interbody fusion (TLIF) is a frequently performed method of lumbar arthrodesis in patients failing medical management of back and leg pain. Accurate placement of the interbody graft and restoration of lordosis has been shown to be crucial when performing lumbar fusion procedures. We performed a single-surgeon, prospective, randomized study to determine whether a novel articulating versus traditional straight graft delivery arm system allows for superior graft placement and increased lordosis for single-level TLIF. Thirty consecutive patients undergoing single-level TLIF were included and prospectively randomized to one of the 2 groups (articulated vs. straight delivery arm system). Three radiographic characteristics were evaluated at 6-week follow-up: (1) degree of segmental lumbar lordosis at the fused level; (2) the percent anterior location of the interbody graft in disk space; and (3) the distance (mm) off midline of the interbody graft placement. Randomization yielded 16 patients in the articulated delivery arm cohort and 14 in the straight delivery arm cohort. The articulating delivery arm system yielded an average of 14.7-degree segmental lordosis at fused level, 35% anterior location, and 3.6 mm off midline. The straight delivery arm system yielded an average of 10.7-degree segmental lordosis at fused level, 46% anterior location, and 7.0 mm off midline. All 3 comparisons were statistically significant (Plordosis compared with a traditional straight delivery arm system.

Human speech articulator measurements using low power, 2GHz Homodyne sensors

International Nuclear Information System (INIS)

Barnes, T; Burnett, G C; Holzrichter, J F

1999-01-01

Very low power, short-range microwave ''radar-like'' sensors can measure the motions and vibrations of internal human speech articulators as speech is produced. In these animate (and also in inanimate acoustic systems) microwave sensors can measure vibration information associated with excitation sources and other interfaces. These data, together with the corresponding acoustic data, enable the calculation of system transfer functions. This information appears to be useful for a surprisingly wide range of applications such as speech coding and recognition, speaker or object identification, speech and musical instrument synthesis, noise cancellation, and other applications

Automotive Mechanic: Task List and Competency Record. Developed for Vocational-Technical Curriculum Articulation in Minnesota.

Science.gov (United States)

Minnesota State Dept. of Education, St. Paul. Div. of Vocational and Technical Education.

Intended for the vocational instructor, the booklet presents a task list and competency record for the occupational program of automotive mechanic. The list was developed by a working committee of auto mechanics instructors and industry representatives throughout the state of Minnesota for use in program articulation between secondary and…

Facial-muscle weakness, speech disorders and dysphagia are common in patients with classic infantile Pompe disease treated with enzyme therapy.

Science.gov (United States)

van Gelder, C M; van Capelle, C I; Ebbink, B J; Moor-van Nugteren, I; van den Hout, J M P; Hakkesteegt, M M; van Doorn, P A; de Coo, I F M; Reuser, A J J; de Gier, H H W; van der Ploeg, A T

2012-05-01

Classic infantile Pompe disease is an inherited generalized glycogen storage disorder caused by deficiency of lysosomal acid α-glucosidase. If left untreated, patients die before one year of age. Although enzyme-replacement therapy (ERT) has significantly prolonged lifespan, it has also revealed new aspects of the disease. For up to 11 years, we investigated the frequency and consequences of facial-muscle weakness, speech disorders and dysphagia in long-term survivors. Sequential photographs were used to determine the timing and severity of facial-muscle weakness. Using standardized articulation tests and fibreoptic endoscopic evaluation of swallowing, we investigated speech and swallowing function in a subset of patients. This study included 11 patients with classic infantile Pompe disease. Median age at the start of ERT was 2.4 months (range 0.1-8.3 months), and median age at the end of the study was 4.3 years (range 7.7 months -12.2 years). All patients developed facial-muscle weakness before the age of 15 months. Speech was studied in four patients. Articulation was disordered, with hypernasal resonance and reduced speech intelligibility in all four. Swallowing function was studied in six patients, the most important findings being ineffective swallowing with residues of food (5/6), penetration or aspiration (3/6), and reduced pharyngeal and/or laryngeal sensibility (2/6). We conclude that facial-muscle weakness, speech disorders and dysphagia are common in long-term survivors receiving ERT for classic infantile Pompe disease. To improve speech and reduce the risk for aspiration, early treatment by a speech therapist and regular swallowing assessments are recommended.

Phenotyping, Etiological Factors, and Biomarkers: Toward Precision Medicine in Autism Spectrum Disorders

Science.gov (United States)

2016-01-01

ABSTRACT: Despite the progress made in understanding the biology of autism spectrum disorder (ASD), effective biological interventions for the core symptoms remain elusive. Because of the etiological heterogeneity of ASD, identification of a “one-size-fits-all” treatment approach will likely continue to be challenging. A meeting was convened at the University of Missouri and the Thompson Center to discuss strategies for stratifying patients with ASD for the purpose of moving toward precision medicine. The “white paper” presented here articulates the challenges involved and provides suggestions for future solutions. PMID:27676697

Comparison of mechanical properties of silicone and PVC (polyvinylchloride) cosmetic gloves for articulating hand prostheses

NARCIS (Netherlands)

Smit, G.; Plettenburg, D.H.

2013-01-01

Current articulating electric and body-powered hands have a lower pinch force (15–34 N) than electric hands with stiff fingers (55–100 N). The cosmetic glove, which covers a hand prosthesis, negatively affects the mechanical efficiency of a prosthesis. The goal of this study is to mechanically

REGISTRATION OF CENTRIC OCCLUSION IN PATIENTS WITH BRUXISM AND BRUXOMANIA THROUGH ARTICULATING PAPER AND THE SYSTEM T-SCAN - COMPARATIVE ANALYSIS.

Directory of Open Access Journals (Sweden)

Mariana Dimova

2014-06-01

Full Text Available The study and documentation of occlusal-articulation relationships has a high diagnostic significance in patients with bruxism and bruxomania. The study aims on the basis of registration of occlusal contacts via articulating paper and the T-Scan system to evaluate the advantages and disadvantages of both methods in occlusal diagnosis of patients with bruxism and bruxomania. Material and Methods: 40 patients with bruxism and / or bruxomania (29 women and 11 men aged between 21 and 77 years from October 2010 to February 2014 was conducted computerized occlusal analysis using the systems T-Scan II (in 12 patients, T-Scan III (in 28 patients and the software T-Scan III. All patients were subjected to registration of occlusal relationships in centric occlusion (CO with articulating paper Bausch PROGRESS 100 µ and Bausch® Arti-Fol® 8 µ. Results and Discussion: In 90.0% of patients it is established unevenly distributed, irregular in size and intensity occlusal contacts. Essential factor for preventing the spontaneous bilateral closure with balanced forces is the presence of interceptive contacts and sliding occurring in the first frame of the occlusion time until the maximum intercuspation - MIP. Conclusion: Registration with articulating paper visualizes cumulative picture of the contacts in CO and interceptive contacts without being able to distinguish them in size and time of onset. Computerized occlusal analysis objectively and quantitatively determines interceptive contacts and distinguishes them from contacts in MIP and gives real meaning to the terms "strong" and "light contacts".

Automatic generation of statistical pose and shape models for articulated joints.

Science.gov (United States)

Xin Chen; Graham, Jim; Hutchinson, Charles; Muir, Lindsay

2014-02-01

Statistical analysis of motion patterns of body joints is potentially useful for detecting and quantifying pathologies. However, building a statistical motion model across different subjects remains a challenging task, especially for a complex joint like the wrist. We present a novel framework for simultaneous registration and segmentation of multiple 3-D (CT or MR) volumes of different subjects at various articulated positions. The framework starts with a pose model generated from 3-D volumes captured at different articulated positions of a single subject (template). This initial pose model is used to register the template volume to image volumes from new subjects. During this process, the Grow-Cut algorithm is used in an iterative refinement of the segmentation of the bone along with the pose parameters. As each new subject is registered and segmented, the pose model is updated, improving the accuracy of successive registrations. We applied the algorithm to CT images of the wrist from 25 subjects, each at five different wrist positions and demonstrated that it performed robustly and accurately. More importantly, the resulting segmentations allowed a statistical pose model of the carpal bones to be generated automatically without interaction. The evaluation results show that our proposed framework achieved accurate registration with an average mean target registration error of 0.34 ±0.27 mm. The automatic segmentation results also show high consistency with the ground truth obtained semi-automatically. Furthermore, we demonstrated the capability of the resulting statistical pose and shape models by using them to generate a measurement tool for scaphoid-lunate dissociation diagnosis, which achieved 90% sensitivity and specificity.

The nature of psychiatric disorders.

Science.gov (United States)

Kendler, Kenneth S

2016-02-01

A foundational question for the discipline of psychiatry is the nature of psychiatric disorders. What kinds of things are they? In this paper, I review and critique three major relevant theories: realism, pragmatism and constructivism. Realism assumes that the content of science is real and independent of human activities. I distinguish two "flavors" of realism: chemistry-based, for which the paradigmatic example is elements of the periodic table, and biology-based, for which the paradigm is species. The latter is a much better fit for psychiatry. Pragmatism articulates a sensible approach to psychiatric disorders just seeking categories that perform well in the world. But it makes no claim about the reality of those disorders. This is problematic, because we have a duty to advocate for our profession and our patients against other physicians who never doubt the reality of the disorders they treat. Constructivism has been associated with anti-psychiatry activists, but we should admit that social forces play a role in the creation of our diagnoses, as they do in many sciences. However, truly socially constructed psychiatric disorders are rare. I then describe powerful arguments against a realist theory of psychiatric disorders. Because so many prior psychiatric diagnoses have been proposed and then abandoned, can we really claim that our current nosologies have it right? Much of our current nosology arose from a series of historical figures and events which could have gone differently. If we re-run the tape of history over and over again, the DSM and ICD would not likely have the same categories on every iteration. Therefore, we should argue more confidently for the reality of broader constructs of psychiatric illness rather than our current diagnostic categories, which remain tentative. Finally, instead of thinking that our disorders are true because they correspond to clear entities in the world, we should consider a coherence theory of truth by which disorders

Articulation Works for Most Community College Transfer Students, But Some Problems Continue. OPPAGA Program Review.

Science.gov (United States)

Florida State Legislature, Tallahassee. Office of Program Policy Analysis and Government Accountability.

The Florida legislature has passed several reforms designed to shorten the time it takes students to obtain their degrees. Although the reforms have produced benefits, some articulation problems continue. The problems include the following: (1) One in five (20%) AA transfer students take a semester or more of lower division courses at a…

How Well Does Botswana's Social Studies Curriculum Articulate Gender Issues? A Preliminary Overview

Science.gov (United States)

Boikhutso, Keene

2013-01-01

In this paper I discuss the extent to Botswana's social studies curriculum is gendered thus more likely to reproduce gender inequalities. The paper locates gender issues within the broader context of male-dominated patriarchal society. It applies content analysis to establish whether or not the Social Studies syllabuses articulate gender issues. I…

Sensory Integration with Articulated Motion on a Humanoid Robot

Directory of Open Access Journals (Sweden)

J. Rojas

2005-01-01

Full Text Available This paper describes the integration of articulated motion with auditory and visual sensory information that enables a humanoid robot to achieve certain reflex actions that mimic those of people. Reflexes such as reach-and-grasp behavior enables the robot to learn, through experience, its own state and that of the world. A humanoid robot with binaural audio input, stereo vision, and pneumatic arms and hands exhibited tightly coupled sensory-motor behaviors in four different demonstrations. The complexity of successive demonstrations was increased to show that the reflexive sensory-motor behaviors combine to perform increasingly complex tasks. The humanoid robot executed these tasks effectively and established the groundwork for the further development of hardware and software systems, sensory-motor vector-space representations, and coupling with higher-level cognition.

Human speech articulator measurements using low power, 2GHz Homodyne sensors

Energy Technology Data Exchange (ETDEWEB)

Barnes, T; Burnett, G C; Holzrichter, J F

1999-06-29

Very low power, short-range microwave ''radar-like'' sensors can measure the motions and vibrations of internal human speech articulators as speech is produced. In these animate (and also in inanimate acoustic systems) microwave sensors can measure vibration information associated with excitation sources and other interfaces. These data, together with the corresponding acoustic data, enable the calculation of system transfer functions. This information appears to be useful for a surprisingly wide range of applications such as speech coding and recognition, speaker or object identification, speech and musical instrument synthesis, noise cancellation, and other applications.

Modeling, Simulation and Position Control of 3DOF Articulated Manipulator

Directory of Open Access Journals (Sweden)

Hossein Sadegh Lafmejani

2014-08-01

Full Text Available In this paper, the modeling, simulation and control of 3 degrees of freedom articulated robotic manipulator have been studied. First, we extracted kinematics and dynamics equations of the mentioned manipulator by using the Lagrange method. In order to validate the analytical model of the manipulator we compared the model simulated in the simulation environment of Matlab with the model was simulated with the SimMechanics toolbox. A sample path has been designed for analyzing the tracking subject. The system has been linearized with feedback linearization and then a PID controller was applied to track a reference trajectory. Finally, the control results have been compared with a nonlinear PID controller.

URBAN SELF-ORGANISATION IN DEPRIVED NEIGHBORHOODS: POSSIBILITIES AND LIMITS OF AUTONOMOUS COLLECTIVE ARTICULATION IN SALVADOR DA BAHIA

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Katja Hölldampf

2013-07-01

Full Text Available From a comparative point of view, the given article is concerned with the possibilities and restrictions of urban self-organization within city’s neighbourhoods. Drawing upon a qualitative comparison between the case studies Alto de Ondina and Alto da Sereia – two disadvantaged urban neighbourhoods in the southern city centre of Salvador da Bahia (Brazil – and considering the conditional framework of daily life there, the idiographic context conditions that foster and alternatively impede self-organization are to be developed on data drawn from empirical surveys. Here, the data-led interpretations reach beyond the local and regional context and offer fundamental insights into auto-centered and autonomous acts of articulation. In Brazil, participative planning processes have been the common sense for urban governance. However, participative strategies tend to stand under the sign of codetermination, whereas the principles of self-determination and auto-centered articulation of collective interests are immantently present during processes of civic self-organization. Due to the fact that self-organized communities do not fall within a defined institutional framework or existing system, they are capable to articulate their needs and interests collectively. The underlying concept of “Agora Governance” in accordance with Korff & Rothfuss (2009 offers the possibility to stimulate urban management processes in a sustainable way, bringing together the civic perspective of the “human city” and the expert perspective of the “infrastructural city” into a consensual but often highly disputed negotiation process.

Detecting self-produced speech errors before and after articulation: An ERP investigation

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Kevin Michael Trewartha

2013-11-01

Full Text Available It has been argued that speech production errors are monitored by the same neural system involved in monitoring other types of action errors. Behavioral evidence has shown that speech errors can be detected and corrected prior to articulation, yet the neural basis for such pre-articulatory speech error monitoring is poorly understood. The current study investigated speech error monitoring using a phoneme-substitution task known to elicit speech errors. Stimulus-locked event-related potential (ERP analyses comparing correct and incorrect utterances were used to assess pre-articulatory error monitoring and response-locked ERP analyses were used to assess post-articulatory monitoring. Our novel finding in the stimulus-locked analysis revealed that words that ultimately led to a speech error were associated with a larger P2 component at midline sites (FCz, Cz, and CPz. This early positivity may reflect the detection of an error in speech formulation, or a predictive mechanism to signal the potential for an upcoming speech error. The data also revealed that general conflict monitoring mechanisms are involved during this task as both correct and incorrect responses elicited an anterior N2 component typically associated with conflict monitoring. The response-locked analyses corroborated previous observations that self-produced speech errors led to a fronto-central ERN. These results demonstrate that speech errors can be detected prior to articulation, and that speech error monitoring relies on a central error monitoring mechanism.

A Pilot Investigation of Speech Sound Disorder Intervention Delivered by Telehealth to School-Age Children

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Sue Grogan-Johnson

2011-05-01

Full Text Available This article describes a school-based telehealth service delivery model and reports outcomes made by school-age students with speech sound disorders in a rural Ohio school district. Speech therapy using computer-based speech sound intervention materials was provided either by live interactive videoconferencing (telehealth, or conventional side-by-side intervention.  Progress was measured using pre- and post-intervention scores on the Goldman Fristoe Test of Articulation-2 (Goldman & Fristoe, 2002. Students in both service delivery models made significant improvements in speech sound production, with students in the telehealth condition demonstrating greater mastery of their Individual Education Plan (IEP goals. Live interactive videoconferencing thus appears to be a viable method for delivering intervention for speech sound disorders to children in a rural, public school setting. Keywords:  Telehealth, telerehabilitation, videoconferencing, speech sound disorder, speech therapy, speech-language pathology; E-Helper

Combining the Vortex Particle-Mesh method with a Multi-Body System solver for the simulation of self-propelled articulated swimmers

Science.gov (United States)

Bernier, Caroline; Gazzola, Mattia; Ronsse, Renaud; Chatelain, Philippe

2017-11-01

We present a 2D fluid-structure interaction simulation method with a specific focus on articulated and actuated structures. The proposed algorithm combines a viscous Vortex Particle-Mesh (VPM) method based on a penalization technique and a Multi-Body System (MBS) solver. The hydrodynamic forces and moments acting on the structure parts are not computed explicitly from the surface stresses; they are rather recovered from the projection and penalization steps within the VPM method. The MBS solver accounts for the body dynamics via the Euler-Lagrange formalism. The deformations of the structure are dictated by the hydrodynamic efforts and actuation torques. Here, we focus on simplified swimming structures composed of neutrally buoyant ellipses connected by virtual joints. The joints are actuated through a simple controller in order to reproduce the swimming patterns of an eel-like swimmer. The method enables to recover the histories of torques applied on each hinge along the body. The method is verified on several benchmarks: an impulsively started elastically mounted cylinder and free swimming articulated fish-like structures. Validation will be performed by means of an experimental swimming robot that reproduces the 2D articulated ellipses.

A comparative study to evaluate the discrepancy in condylar guidance values between two commercially available arcon and non-arcon articulators: A clinical study

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Mukesh Kumar Goyal

2011-01-01

Full Text Available Aim: The purpose of this study was comparative evaluation of sagittal condylar values of arcon and non-arcon articulators with cephalometric readings and to determine the amount of discrepancy in sagittal condylar guidance values between arcon and non-arcon articulators using same protrusive record. Materials and Methods: Twenty subjects in the age group of 19-35 years, free from temporomandibular joint dysfunction, and occlusal disharmony, with healthy dentition participated in the study. Hanau H2 (non-arcon type and Hanau Wide-Vue (arcon type articulators were programmed for sagittal condylar guidance values using the same protrusive record made in polysiloxane bite registration material with edge to edge degree of protrusion. The resultant values for both the articulators on either side were compared with values obtained from tracing of digital lateral cephalogram using Kodak Dental imaging Window software 6.6.3.0-C program. The tabulated data were subjected to statistical analysis, ANOVA (Fishers ′F′ test for group comparison, Tukey′s HSD test for inter-comparison, student′s unpaired ′t′ test for intra-group comparison, and level of significance (P was calculated using the same. Results: The mean sagittal condylar guidance values of the three different groups were found to be very highly significant (P=0.001 and highly significant (P=0.002 on the right and left sides respectively. There was a very highly significant difference (P=0.001 and highly significant difference (P=0.003 between the arcon and non-arcon group on the right and left side respectively. No significant difference was found between the arcon and cephalometric group (P=0.284 right, P=0.853 left and a statistically significant difference was found between the non-arcon and cephalometric group (P=0.049 right, P=0.015 left. On intragroup comparison there was no statistically significant difference in sagittal condylar values on the right and left sides. Conclusion

An Acceptable Alternative Articulation to Remediate Mispronunciation of the English /l/ Sound: Can Production Precede Perception?

Science.gov (United States)

Raver-Lampman, Greg; Wilson, Corinne

2018-01-01

This article explores the teaching of an acceptable alternative articulation to correct the mispronunciation of the English /l/ sound by speakers of some Asian languages and dialects who struggle to differentiate the English liquids /r/ and /l/. Although teaching pronunciation, and especially segmentals, has generated controversy over whether…

Articulating the Unsayable: An Exploration of ”Visible Voices” in Sifiso Nyathi’s the Other Presence

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Nelson Mlambo

2015-10-01

Full Text Available This paper explores the insightful nuances about narratives and contemporary life from the award winning Namibian writer, Sifiso Nyathi. The paper arises from the realisation of the paucity of literature in Namibia to tackle sensitive issues and the more often peripheral recognition of the power that fiction has to comment and bring insight to socio-cultural and economic issues. The chosen methodology is literary analysis and the concern that informs this paper is on how narratives demonstrate an apt ability to communicate concerns and sensibilities that both haunt and inspire contemporary societies. The paper demonstrates how literature (fiction and language open up fissures to spell out the ‘unsayable’, the taboo, and the often whispered and not yet said “other presence” in contemporary life. This is a way of questioning, voicing, re-examining and articulating certain truths which are supposedly veiled and unrepresentable, whose grammars of articulation often evade quantitative analysis. Through the chosen novel, the paper projected the ‘multivoiceness’ of literature in as much as it represents the gamut of HIV/AIDS in conservative communities, the contested terrain of superstition, the supernatural, belief and witchcraft. The ultimate conclusion is that literature is a powerful tool for the articulation of core concerns and issues in contemporary Africa and that through his novel; Nyathi managed to make visible the qualitative facets of life like pain, bereavement, culture, HIV/AIDS, religion and stigma. It suffices therefore say that educational, cultural, the civic society and policy makers heed the wisdom enshrined in the creative arts in order to find multifaceted ways of handling the horrors faced by the people on a daily basis.

The articulation of Mexico into the dynamics of competition of the North American natural gas market

International Nuclear Information System (INIS)

Elizalde Baltierra, A.

2002-07-01

Deregulation is at the origin of the new dynamics of competition in the natural gas industry. The United States and Canada were the pioneer countries to suffer these changes. In fact, their natural gas markets today function in a very similar way: i) the private sector takes a place as large as possible, and ii)competition is developed within the three segments of the gas value, especially at the upstream level (emergence of hubs, spot and financial markets,...). In Mexico, its downstream gas activities (transportation, storage and distribution) were liberalized in 1995 in order to attract private investments and to develop the gas sector that has historically been operated under State control. Gas upstream operations remain reserved by the Constitution to the national oil company Petroleos Mexicanos (PEMEX). This thesis develops an evaluation framework of the articulation of Mexico into the dynamics of competition of the North American natural gas market, based on the structure-conduct-performance paradigm. In the first part, all North American's natural gas industries base conditions are analyzed. We examine in the second part, the deregulation and articulation of the dynamics of competition of the American and Canadian gas industries. Finally, in the third part we analyze the main elements of the articulation of Mexico into the dynamics of competition of United States and Canada's gas industries. Furthermore, we evaluate the impact of three of these elements (the economic growth, the electric power generation sector and eventually opening to private investments of gas upstream activities) on the adjustment of gas supply and demand in Mexico to the year 2020. (author)

Attitudes toward speech disorders: sampling the views of Cantonese-speaking Americans.

Science.gov (United States)

Bebout, L; Arthur, B

1997-01-01

Speech-language pathologists who serve clients from cultural backgrounds that are not familiar to them may encounter culturally influenced attitudinal differences. A questionnaire with statements about 4 speech disorders (dysfluency, cleft pallet, speech of the deaf, and misarticulations) was given to a focus group of Chinese Americans and a comparison group of non-Chinese Americans. The focus group was much more likely to believe that persons with speech disorders could improve their own speech by "trying hard," was somewhat more likely to say that people who use deaf speech and people with cleft palates might be "emotionally disturbed," and generally more likely to view deaf speech as a limitation. The comparison group was more pessimistic about stuttering children's acceptance by their peers than was the focus group. The two subject groups agreed about other items, such as the likelihood that older children with articulation problems are "less intelligent" than their peers.

Articulating Scientific Practice: Understanding Dean Hamer's "Gay Gene" Study as Overlapping Material, Social and Rhetorical Registers

Science.gov (United States)

Lynch, John A.

2009-01-01

Rhetoricians have tried to develop a better understanding of the connection between words and things, but these attempts often employ a logic of representation that undermines a full examination of materiality and the complexity of scientific practice. A logic of articulation offers a viable alternative by focusing attention on the linkages…

Articulation Rate and Vowel Space Characteristics of Young Males with Fragile X Syndrome: Preliminary Acoustic Findings

Science.gov (United States)

Zajac, David J.; Roberts, Joanne E.; Hennon, Elizabeth A.; Harris, Adrianne A.; Barnes, Elizabeth F.; Misenheimer, Jan

2006-01-01

Purpose: Increased speaking rate is a commonly reported perceptual characteristic among males with fragile X syndrome (FXS). The objective of this preliminary study was to determine articulation rate--one component of perceived speaking rate--and vowel space characteristics of young males with FXS. Method: Young males with FXS (n = 38), …

Informal work and formal plans: articulating the active role of patients in cancer trajectories

DEFF Research Database (Denmark)

Dalsted, Rikke Juul; Hølge-Hazelton, Bibi; Brostrøm Kousgaard, Marius

2012-01-01

Introduction: Formal pathway models outline that patients should receive information in order to experience a coherent journey but do not describe an active role for patients or their relatives. The aim of this is paper is to articulate and discuss the active role of patients during their cancer ...... participation. When looking at integrated care from the perspective of patients, the development of a more holistic and personalized approach is needed....

Informal work and formal plans: Articulating the active role of patients in cancer trajectories

DEFF Research Database (Denmark)

Dalsted, R.; Hølge-Hazelton, Bibi; Kousgaard, MB

2013-01-01

Formal pathways models outline that patients should receive information in order to experience a coherent journey but do not describe an active role for patients or their relatives. The aim of this is paper is to articulate and discuss the active role of patients during their cancer trajectories........ When looking at integrated care from the perspective of patients, the development of a more holistic and personalized approach is needed....

Sensorimotor speech disorders in Parkinson's disease: Programming and execution deficits

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Karin Zazo Ortiz

Full Text Available ABSTRACT Introduction: Dysfunction in the basal ganglia circuits is a determining factor in the physiopathology of the classic signs of Parkinson's disease (PD and hypokinetic dysarthria is commonly related to PD. Regarding speech disorders associated with PD, the latest four-level framework of speech complicates the traditional view of dysarthria as a motor execution disorder. Based on findings that dysfunctions in basal ganglia can cause speech disorders, and on the premise that the speech deficits seen in PD are not related to an execution motor disorder alone but also to a disorder at the motor programming level, the main objective of this study was to investigate the presence of sensorimotor disorders of programming (besides the execution disorders previously described in PD patients. Methods: A cross-sectional study was conducted in a sample of 60 adults matched for gender, age and education: 30 adult patients diagnosed with idiopathic PD (PDG and 30 healthy adults (CG. All types of articulation errors were reanalyzed to investigate the nature of these errors. Interjections, hesitations and repetitions of words or sentences (during discourse were considered typical disfluencies; blocking, episodes of palilalia (words or syllables were analyzed as atypical disfluencies. We analysed features including successive self-initiated trial, phoneme distortions, self-correction, repetition of sounds and syllables, prolonged movement transitions, additions or omissions of sounds and syllables, in order to identify programming and/or execution failures. Orofacial agility was also investigated. Results: The PDG had worse performance on all sensorimotor speech tasks. All PD patients had hypokinetic dysarthria. Conclusion: The clinical characteristics found suggest both execution and programming sensorimotor speech disorders in PD patients.

Cognitive Levels Regarding Articulation Marks among Violin Students in Department of Music Education in Gazi University

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Taninmis, Gamze Elif

2016-01-01

The purpose of this study is to determine violin students' cognitive levels about articulation marks in Department of Music Education, Fine Arts Education, Gazi Faculty of Education, Gazi University (GUGEF), and to identify the variables on which the cognitive levels vary. It is a descriptive research considering the study purpose, method and…

Articulated, Performance-Based Instruction Objectives Guide for Air Conditioning, Refrigeration, and Heating. Volume II (Second Year).

Science.gov (United States)

Henderson, William Edward, Jr., Ed.

This articulation guide contains 17 units of instruction for the second year of a two-year vocational program designed to prepare the high school graduate to install, maintain, and repair various types of residential and commercial heating, air conditioning, and refrigeration equipment. The units are designed to help the student to expand and…

Modeling of rotary movement of the articulating crane with increased gaps in the hinge joints of the links

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Lagerev I.A.

2016-06-01

Full Text Available The article made computer simulation of dynamics of hydraulic articulating cranes with fully rotary motion for the case when the cylindrical hinges have an increased gap. Considered the use of special damping devices to reduce shock loads due to the presence of increased gaps. In previously developed software package KBCrane performed a series of calcu-lations made it possible to establish the relationship between the stiffness and damping devices the effectiveness of their use in varying the magnitude of the gap. In the case of the rotary movement of the articulating crane, a comparative analysis of work of joints of the connection node of the boom and lifting device with no gap and with high gaps. The features of the damping devices work joints and cushioning. Conclusions on positive and negative sides of the use of elastic damping devices.

Articulated vehicles of 25 meter and 60 ton in The Netherlands: the start of a pilot project

NARCIS (Netherlands)

Hoogvelt, R.B.J.; Huijbers, J.J.W.

1998-01-01

At this moment the total allowable length of an articulated vehicle in The Netherlands is 18.35 meter and its total weight is 50 ton. Several Dutch transportation organisations requested a pilot project with longer and heavier vehicles for heavy goods transpotation. Because of the environmental

Implications of Shared Interactive Displays for Work at a Surgery Ward: Coordination, Articulation Work and Context-awareness

DEFF Research Database (Denmark)

Bossen, Claus; Jensen, Lis Witte Kjær

2008-01-01

We report on experiences gained from the use at a surgery ward of shared interactive displays to support coordination and communication.  The displays merge large displays, video feed, RFID tag, chat and mobile phones to facilitate better coordination and articulation of work tasks and enhance...

Three General Theoretical Models in Sociology: An Articulated ?(Disunity?

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Thaís García-Pereiro

2015-01-01

Full Text Available After merely a brief, comparative reconstruction of the three most general theoretical models underlying contemporary Sociology (atomic, systemic, and fluid it becomes necessary to review the question about the unity or plurality of Sociology, which is the main objective of this paper. To do so, the basic terms of the question are firstly updated by following the hegemonic trends in current studies of science. Secondly the convergences and divergences among the three models discussed are shown. Following some additional discussion, the conclusion is reached that contemporary Sociology is not unitary, and need not be so. It is plural, but its plurality is limited and articulated by those very models. It may therefore be portrayed as integrated and commensurable, to the extent that a partial and unstable (disunity may be said to exist in Sociology, which is not too far off from what happens in the natural sciences.

Contribution to the automatic command in robotics - Application to the command by microprocessors of the articulated systems

International Nuclear Information System (INIS)

Al Mouhamed, Mayez

1982-01-01

The first part of the present paper deals with the main methods of changing the coordinates for a general articulated system. After a definition of the coordinates changing, we propose a coordination system designed for easy programming of the movements. Its characteristic is to permit the action anywhere on the manipulated object. The second part deals with the force regulation problem. For this purpose we have developed a general force sensor. The informations delivered by the sensor are used by force regulators which are intended for the automatic assembly of subsystems. In the third part the dynamic problem of the articulated systems is exposed. We present a new method which allows to determine dynamic parameters from appropriate motions of the robot. These parameters are then used to implement the dynamic control. Several applications, using the powerful microprocessor INTEL 8086 and its arithmetic coprocessor 8087, are presented, in order to demonstrate the performances gained. (author) [fr

Bilateral first rib anomalous articulations with pseudarthroses mimicking healing fractures in an infant with abusive head injury.

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Pasquale-Styles, Melissa A; Crowder, Christian M; Fridie, Jeannette; Milla, Sarah S

2014-11-01

Bilateral symmetric bone nodules were observed in the anterolateral first ribs of an infant with shaking injuries at autopsy. The location prompted diagnostic considerations of healing fractures versus anomalous articulations with pseudarthroses. The forensic pathologist worked with forensic anthropologists and pediatric radiologists to evaluate autopsy findings and compare premortem and postmortem X-rays. Gross examination of the bones by the pathologist and anthropologists confirmed bilateral, callus-like bone nodules in first-rib locations associated with pseudarthroses. Histologic examination of one of the bones further showed features most consistent with pseudarthrosis, not a healing fracture. Radiologists then compared multiple premortem and postmortem radiographs that showed no remodeling of the bone over a 2-week interval between the time of injury and death, which would be unexpected for a healing fracture in an infant. This multidisciplinary approach resulted in the appropriate diagnosis of pseudarthroses due to anomalous articulations, an uncommon finding in forensic pathology. © 2014 American Academy of Forensic Sciences.

Boundaries to the articulation of possible selves through social networking sites: the case of Facebook profilers' social connectedness

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Zwier, S.; Araujo, T.; Boukes, M.; Willemsen, L.

2011-01-01

This study aims to contribute to an emerging literature that seeks to understand how identity markers on social networking sites (SNSs) shape interpersonal impressions, and particularly the boundaries that SNSs present for articulating unconstrained 'hoped-for possible selves.' An experiment

The Bakayat SpokenText Tradition The Articulation of Religious Value and Social Discourse of Sasak Community in Lombok

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I Made Suyasa

2017-01-01

Full Text Available This study explored the bakayat spoken-text tradition of the Sasak people in Lombok. The tradition was used as media for preaching on Islamic day, customs and ceremonies, as well as appreciating the folk literature. Malay literary texts that contained religious values were articulated continuously in various social discourses by the community that owned this tradition. The impact of the globalization and the inclusion of various Islamic doctrines in Lombok have threatened the existence of the bakayat tradition and now most Sasak people especially the younger ones are not interested in this tradition. The background explained above has become the main reason why this study was conducted. Moreover, there were still a few studies which had investigated the bakayat tradition in-depth. This present study was focused on the history, structure, function, meaning, and articulation of the religious values and social discourse of the bakayat tradition bySasak people. This research used the descriptive analytical method. The data were analyzed using the interpretive qualitative method. The theories used in this study were the theory narratology proposed by Gerard Genette (1986, the theory of articulation proposed by Stuart Hall (1986, the theory of functions, and the theory of semiotics. The results of this study showed that the historical development ofthe Sasakbakayat tradition was characterized by the emergence of Islam in Lombok. It significantly contributed to the existence of bakayat. It was followed by the Islamic Malay literature which was used as the reading material in the bakayat tradition and the media for learning Islam. The historical development of the bakayat Sasak was explained in various aspects such as religious, cultural, political, and social aspects. The structure of the bakayat text was a form of the articulation in spoken style which involved the characteristics of the

Articulations between self-care and ecosophy: the teachers’ training issue

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Isabel Gomes Ayres

2018-02-01

Full Text Available In this article, we covered Michel Foucault and Félix Guattari papers in order to try to articulate the “self-care” (Foucault and "Ecosophy" (Guattari philosophical concepts and then, to discuss how these concepts can build up a thought on the teachers’ training, as well as, suggesting a training itself which is called “Ecosophic". Between 1981 and 1982, Foucault spoke about the urgency of rebuilding a “self” ethic as a possible confrontation against dissymmetric power relationships. Later, in 1989, Guattari, also referenced this urgency against a multifaceted crisis that deteriorated in the physical environment, social relations and subjectivities of the entire planet. Foucault and Guattari have developed these criticisms for about three decades and we believe their writings may contribute to place the current spotlight.

Palatalization in English: An Articulation Problem for Turkish Teacher Trainees

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Prof. Dr. Mehmet Demirezen

2005-04-01

Full Text Available In the field of teacher training, there is a scarcity of teaching pronunciation teachingmethodology to cure the fossilized mistakes of teacher trainees and foreign language teacherson-the-job. A case study pertaining to this situation is handled for the first time in this articleunder the title of “Audio-articulation Method” (Demirezen, 2003; Hişmanoğlu, 2004. Thismethod takes up a fossilized mistake of teacher trainees or teachers on-the-job in fifty minutesand brings in pronunciation correction by using tongue-twisters, idioms, proverbs, and thelike. Thus, it cures the fossilized mistake to a grater extent by creating a higher awareness andimproving communicative fluency. This method through task-based point of view removesthe related fossilized mistake and brings in pronunciation betterment to the teacher traineesand the teachers on-the-job.

Articulating the history and major departure points evident in post-apartheid South African national water policy and law

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Chikozho, C.; Danga, L.; Saruchera, D.

2017-08-01

Governance of the water sector in South Africa has reflected the political changes taking place in society. For instance, due to apartheid policies of segregation, inequality of access to water resources marks South Africa's history in a very profound way and redistribution of rights to water to redress the results of past discrimination became an explicit purpose of the post-apartheid water governance policy and legislative regime. In this paper, we articulate the history and major departure points evident in post-apartheid South African national water policy and law. This includes documenting and reflecting on most of the available information that shows how the new water policy and law were developed. Findings from the study show that the key players active in the water law review process deliberately took into account the political goals and dynamics of power asymmetry within which the law was being articulated. Therefore, the water law as it stands today and in the past must be understood within the context of the socio-economic and political landscape that has prevailed in South Africa at different historical junctures. We contend that a detailed examination and articulation of the history and major departure points evident in post-apartheid South African national water policy and law enables practitioners and scholars to better understand the main motivations behind the water sector reforms and the then prevailing thinking behind the policy and legislation eventually promulgated. The present water law must be understood in the context of these reforms and the objectives they sought to achieve.

Articulation of young adult readers in a digitalized and medialized landscape of texts

DEFF Research Database (Denmark)

Henkel, Ayoe Qvist

The digital turn does not bring about changes in young adultliterature considered as aesthetic artifacts and literary works but it changes the perception and reception of the reader. Digital young adult literature is increasingly multimodal, including interactivity and the integration of elements...... of game aesthetics. The way the young person is articulated within such texts must be presumed to be new, and the pivotal point of this paper will be to explore how the young adult reader is thematized in content, form, and medium in digital young adult literature....

Visual servo simulation of EAST articulated maintenance arm robot

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Yang, Yang, E-mail: yangyang@ipp.ac.cn [Institute of Plasma Physics, Chinese Academy of Sciences, 350 Shushanhu Rd, Hefei, Anhui (China); Song, Yuntao; Pan, Hongtao; Cheng, Yong; Feng, Hansheng [Institute of Plasma Physics, Chinese Academy of Sciences, 350 Shushanhu Rd, Hefei, Anhui (China); Wu, Huapeng [Lappeenranta University of Technology, Skinnarilankatu 34, Lappeenranta (Finland)

2016-03-15

For the inspection and light-duty maintenance of the vacuum vessel in the EAST tokamak, a serial robot arm, called EAST articulated maintenance arm, is developed. Due to the 9-m-long cantilever arm, the large flexibility of the EAMA robot introduces a problem in the accurate positioning. This article presents an autonomous robot control to cope with the robot positioning problem, which is a visual servo approach in context of tile grasping for the EAMA robot. In the experiments, the proposed method was implemented in a simulation environment to position and track a target graphite tile with the EAMA robot. As a result, the proposed visual control scheme can successfully drive the EAMA robot to approach and track the target tile until the robot reaches the desired position. Furthermore, the functionality of the simulation software presented in this paper is proved to be suitable for the development of the robotic and computer vision application.

Visual servo simulation of EAST articulated maintenance arm robot

International Nuclear Information System (INIS)

Yang, Yang; Song, Yuntao; Pan, Hongtao; Cheng, Yong; Feng, Hansheng; Wu, Huapeng

2016-01-01

For the inspection and light-duty maintenance of the vacuum vessel in the EAST tokamak, a serial robot arm, called EAST articulated maintenance arm, is developed. Due to the 9-m-long cantilever arm, the large flexibility of the EAMA robot introduces a problem in the accurate positioning. This article presents an autonomous robot control to cope with the robot positioning problem, which is a visual servo approach in context of tile grasping for the EAMA robot. In the experiments, the proposed method was implemented in a simulation environment to position and track a target graphite tile with the EAMA robot. As a result, the proposed visual control scheme can successfully drive the EAMA robot to approach and track the target tile until the robot reaches the desired position. Furthermore, the functionality of the simulation software presented in this paper is proved to be suitable for the development of the robotic and computer vision application.

D.S. Sense’s “On My Detroit Everything”: Self-Articulating Black Girl Magic

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Kellie D. Hay

2018-04-01

Full Text Available Long before the hashtag #BlackGirlMagic was popularized on social network sites Black women in Detroit have been employing art in their processes of self-articulation and efforts to deal with the complexities and challenges of life in the city. The scripts of African American women that dominate the commercial hip hop industry and their impacts on girls and women have received thorough analysis in academia; yet, the practices, representations, and discursive articulations of independent, Black women hip hop artists remain underexplored. In particular, this essay draws on Deidre “D.S. Sense” Smith’s spoken word poem “On My Detroit Everything” to illuminate the counter-narratives and scripts that Black women have been creating to document, validate, and voice their experiences at a critical point in Detroit’s history as it underwent and continues to deal with the after effects of bankruptcy. Hip hop artists who use cultural production to accomplish grass roots community-building offer alternative visions of what it means to do political work. More than a strategy, we argue that such practices serve as the foundation for a movement that is significant and worthy of documentation in the contemporary neoliberal moment where in policies are accelerating the continued disenfranchisement of people of color in cities such as Detroit.

Values Education in the Mathematics Classroom: Subject Values, Educational Values and One Teacher's Articulation of Her Practice

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Bills, Liz; Husbands, Chris

2005-01-01

The issue of values has been a longstanding concern of mathematics education research. Attempts have been made to analyze the specifically mathematical values which characterize the practice of mathematics teachers. In this paper we draw on one teacher's articulation of her practice to explore values issues in the teaching of mathematics, drawing…

Applying a Cognitive Neuroscience Perspective to Disruptive Behavior Disorders: Implications for Schools.

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Tyler, Patrick M; White, Stuart F; Thompson, Ronald W; Blair, R J R

2018-02-12

A cognitive neuroscience perspective seeks to understand behavior, in this case disruptive behavior disorders (DBD), in terms of dysfunction in cognitive processes underpinned by neural processes. While this type of approach has clear implications for clinical mental health practice, it also has implications for school-based assessment and intervention with children and adolescents who have disruptive behavior and aggression. This review articulates a cognitive neuroscience account of DBD by discussing the neurocognitive dysfunction related to emotional empathy, threat sensitivity, reinforcement-based decision-making, and response inhibition. The potential implications for current and future classroom-based assessments and interventions for students with these deficits are discussed.

Effect of emotion and articulation of speech on the Uncanny Valley in virtual characters

DEFF Research Database (Denmark)

Tinwell, Angela; Grimshaw, Mark Nicholas; Abdel Nabi, Debbie

2011-01-01

This paper presents a study of how exaggerated facial expression in the lower face region affects perception of emotion and the Uncanny Valley phenomenon in realistic, human-like, virtual characters. Characters communicated the six basic emotions, anger, disgust, fear, sadness and surprise...... with normal and exaggerated mouth movements. Measures were taken for perceived familiarity and human-likness. the results showed that: an increased intensity of articulation significantly reduced the uncanny for anger, yet increased perception of the uncanny for characters expressing happiness...

How clarinettists articulate: The effect of blowing pressure and tonguing on initial and final transients.

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Li, Weicong; Almeida, André; Smith, John; Wolfe, Joe

2016-02-01

Articulation, including initial and final note transients, is important to tasteful music performance. Clarinettists' tongue-reed contact, the time variation of the blowing pressure P¯mouth, the mouthpiece pressure, the pressure in the instrument bore, and the radiated sound were measured for normal articulation, accents, sforzando, staccato, and for minimal attack, i.e., notes started very softly. All attacks include a phase when the amplitude of the fundamental increases exponentially, with rates r ∼1000 dB s(-1) controlled by varying both the rate of increase in P¯mouth and the timing of tongue release during this increase. Accented and sforzando notes have shorter attacks (r∼1300 dB s(-1)) than normal notes. P¯mouth reaches a higher peak value for accented and sforzando notes, followed by a steady decrease for accented notes or a rapid fall to a lower, nearly steady value for sforzando notes. Staccato notes are usually terminated by tongue contact, producing an exponential decrease in sound pressure with rates similar to those calculated from the bandwidths of the bore resonances: ∼400 dB s(-1). In all other cases, notes are stopped by decreasing P¯mouth. Notes played with different dynamics are qualitatively similar, but louder notes have larger P¯mouth and larger r.

On Interlayer Stability and High-Cycle Simulator Performance of Diamond-Like Carbon Layers for Articulating Joint Replacements

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Kerstin Thorwarth

2014-06-01

Full Text Available Diamond like carbon (DLC coatings have been proven to be an excellent choice for wear reduction in many technical applications. However, for successful adaption to the orthopaedic field, layer performance, stability and adhesion in physiologically relevant setups are crucial and not consistently investigated. In vitro wear testing as well as adequate corrosion tests of interfaces and interlayers are of great importance to verify the long term stability of DLC coated load bearing implants in the human body. DLC coatings were deposited on articulating lumbar spinal disks made of CoCr28Mo6 biomedical implant alloy using a plasma-activated chemical vapor deposition (PACVD process. As an adhesion promoting interlayer, tantalum films were deposited by magnetron sputtering. Wear tests of coated and uncoated implants were performed in physiological solution up to a maximum of 101 million articulation cycles with an amplitude of ±2° and −3/+6° in successive intervals at a preload of 1200 N. The implants were characterized by gravimetry, inductively coupled plasma optical emission spectrometry (ICP-OES and cross section scanning electron microscopy (SEM analysis. It is shown that DLC coated surfaces with uncontaminated tantalum interlayers perform very well and no corrosive or mechanical failure could be observed. This also holds true in tests featuring overload and third-body wear by cortical bone chips present in the bearing pairs. Regarding the interlayer tolerance towards interlayer contamination (oxygen, limits for initiation of potential failure modes were established. It was found that mechanical failure is the most critical aspect and this mode is hypothetically linked to the α-β tantalum phase switch induced by increasing oxygen levels as observed by X-ray diffraction (XRD. It is concluded that DLC coatings are a feasible candidate for near zero wear articulations on implants, potentially even surpassing the performance of ceramic vs

Articulating current service development practices: a qualitative analysis of eleven mental health projects.

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Jun, Gyuchan Thomas; Morrison, Cecily; Clarkson, P John

2014-01-17

The utilisation of good design practices in the development of complex health services is essential to improving quality. Healthcare organisations, however, are often seriously out of step with modern design thinking and practice. As a starting point to encourage the uptake of good design practices, it is important to understand the context of their intended use. This study aims to do that by articulating current health service development practices. Eleven service development projects carried out in a large mental health service were investigated through in-depth interviews with six operation managers. The critical decision method in conjunction with diagrammatic elicitation was used to capture descriptions of these projects. Stage-gate design models were then formed to visually articulate, classify and characterise different service development practices. Projects were grouped into three categories according to design process patterns: new service introduction and service integration; service improvement; service closure. Three common design stages: problem exploration, idea generation and solution evaluation - were then compared across the design process patterns. Consistent across projects were a top-down, policy-driven approach to exploration, underexploited idea generation and implementation-based evaluation. This study provides insight into where and how good design practices can contribute to the improvement of current service development practices. Specifically, the following suggestions for future service development practices are made: genuine user needs analysis for exploration; divergent thinking and innovative culture for idea generation; and fail-safe evaluation prior to implementation. Better training for managers through partnership working with design experts and researchers could be beneficial.

Surgical improvement of speech disorder caused by amyotrophic lateral sclerosis.

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Saigusa, Hideto; Yamaguchi, Satoshi; Nakamura, Tsuyoshi; Komachi, Taro; Kadosono, Osamu; Ito, Hiroyuki; Saigusa, Makoto; Niimi, Seiji

2012-12-01

Amyotrophic lateral sclerosis (ALS) is a progressive debilitating neurological disease. ALS disturbs the quality of life by affecting speech, swallowing and free mobility of the arms without affecting intellectual function. It is therefore of significance to improve intelligibility and quality of speech sounds, especially for ALS patients with slowly progressive courses. Currently, however, there is no effective or established approach to improve speech disorder caused by ALS. We investigated a surgical procedure to improve speech disorder for some patients with neuromuscular diseases with velopharyngeal closure incompetence. In this study, we performed the surgical procedure for two patients suffering from severe speech disorder caused by slowly progressing ALS. The patients suffered from speech disorder with hypernasality and imprecise and weak articulation during a 6-year course (patient 1) and a 3-year course (patient 2) of slowly progressing ALS. We narrowed bilateral lateral palatopharyngeal wall at velopharyngeal port, and performed this surgery under general anesthesia without muscle relaxant for the two patients. Postoperatively, intelligibility and quality of their speech sounds were greatly improved within one month without any speech therapy. The patients were also able to generate longer speech phrases after the surgery. Importantly, there was no serious complication during or after the surgery. In summary, we performed bilateral narrowing of lateral palatopharyngeal wall as a speech surgery for two patients suffering from severe speech disorder associated with ALS. With this technique, improved intelligibility and quality of speech can be maintained for longer duration for the patients with slowly progressing ALS.

Simulating Dynamics of the System of Articulated Rigid Bodies with Joint Friction

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M. V. Michaylyuk

2016-01-01

Full Text Available The subject of the work is to simulate dynamics of the system of articulated rigid bodies in the virtual environment complexes. The work aim is to develop algorithms and methods to simulate the multi-body system dynamics with joint friction to ensure all calculations in real time in line with visual realistic behavior of objects in a scene.The paper describes the multibody system based on a maximal set of coordinates, and to simulate the joint friction is used a Coulomb's law of dry friction. Joints are described using the holonomic constraints and their derivatives that specify the constraints on velocities of joined bodies. Based on The Coulomb’s law a correlation for the friction impulse values has been derived as an inequality. If the friction impulse performs a constraint that is a lack of relative motion of two joint-joined bodies, there is a static friction in the joint. Otherwise, there is a dynamic friction in the joint. Using a semi-implicit Euler method allows us to describe dynamics of articulated rigid bodies with joint friction as a system of linear algebraic equations and inequalities for the unknown velocities and impulse values.To solve the obtained system of equations and inequalities is used an iterative method of sequential impulses, which sequentially processes constraints for each joint with impulse calculation and its application to the joined bodies rather than considers the entire system. To improve the method convergence, at each iteration the calculated impulses are accumulated for their further using as an initial approximation at the next step of simulation.The proposed algorithms and methods have been implemented in the training complex dynamics subsystem, developed in SRISA RAS. Evaluation of these methods and algorithms has demonstrated their full adequacy to requirements for virtual environment systems and training complexes.

Assaults by Mentally Disordered Offenders in Prison: Equity and Equivalence.

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Hales, Heidi; Dixon, Amy; Newton, Zoe; Bartlett, Annie

2016-06-01

Managing the violent behaviour of mentally disordered offenders (MDO) is challenging in all jurisdictions. We describe the ethical framework and practical management of MDOs in England and Wales in the context of the move to equivalence of healthcare between hospital and prison. We consider the similarities and differences between prison and hospital management of the violent and challenging behaviours of MDOs. We argue that both types of institution can learn from each other and that equivalence of care should extend to equivalence of criminal proceedings in court and prisons for MDOs. We argue that any adjudication process in prison for MDOs is enhanced by the relevant involvement of mental health professionals and the articulation of the ethical principles underpinning health and criminal justice practices.

OCCLUSION AND ARTICULATION IN BRUXISM AND BRUXOMANIA INVESTIGATED WITH THE SYSTEM T-SCAN III.

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Mariana Dimova

2014-11-01

Full Text Available Aim: To be analyzed common features of occlusal relationships in patients with bruxism and bruxomania at maximum intercuspation (MIP and eccentric jaw movements. Materials and Methods: 30 patients (22 women and 8 men, mean aged of 42,8 ± 13,3 with bruxism and/or bruxomania are examined with the system T-Scan III. Sequence of records is - at maximum intercuspation (MIP; in manual leading to central relation and in eccentric jaw movements. In the same sequence is investigated control group - 30 people (15 women and 15 men aged between 21 and 45 who didn’t have bruxism and/or bruxomania and dentition is preserved. Results: In the control group 85% of cases there is a balance of forces in both halves of the dental arch. In patients with bruxism is established uneven distribution of forces in MIP and articulation blockages (95%. There are three major reasons that impede spontaneous bilateral closing - force outliers (93% of cases; low force outliers (82% and presence of interceptive contacts and sliding occurring in the beginning of occlusion time until MIP (in all patients. Conclusions: In order to achieve a balanced occlusion in patients with bruxism and/or bruxomania required are correct diagnosis, registration and removal of preliminary contacts, articulation blockages and infraocclusion. Occlusal analysis is objective and an indicator of subsequent treatment only when it is a combination of clinical, instrumental and computerized occlusal analysis.

Modeling, Simulation and Position Control of 3 Degree of Freedom Articulated Manipulator

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Hossein Sadegh Lafmejani

2013-09-01

Full Text Available In this paper, the modeling, simulation and control of 3 degree of freedom articulated robotic manipulator have been studied. First, we extracted kinematics and dynamics equations of the mentioned manipulator by using the Lagrange method. In order to validate the analytical model of the manipulator we compared the model simulated in the simulation environment of Matlab with the model was simulated with the SimMechanics toolbox. A sample path has been designed for analyzing the tracking subject. The system has been linearized with feedback linearization and then a PID controller was applied to track a reference trajectory. Finally, the control results have been compared with a nonlinear PID controller.

The articulation of neoliberalism: narratives of experience of chronic illness management in Bulgaria and the UK.

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Vassilev, Ivaylo; Rogers, Anne; Todorova, Elka; Kennedy, Anne; Roukova, Poli

2017-03-01

The shift from social democratic to a neoliberal consensus in modern welfare capitalist states is characterised by an emphasis on individual responsibility, consumer choice, market rationality and growing social inequalities. There has been little exploration of how neoliberalism has shaped the environment within which chronic illness is experienced and managed. This article explores the different articulations of neoliberalism manifest in the arena of personal illness management in Bulgaria and the UK. People with type 2 diabetes discussed their experiences in terms of struggling with diet, diabetes as a personal failure, integrating illness management and valued activities, and the trustworthiness of the healthcare system. The UK narratives were framed within an individual responsibility discourse while in Bulgaria lack of resources dominated discussions, which were framed as structurally generated and unrelated to individual capabilities and choices. Respondents faced personal management challenges related to consumer and healthcare market failures in both countries. Differences in market regulation and emerging stakeholder and interest coalitions influenced users' expectations and their navigation and adaption to market failures in managing their everyday illnesses. The UK and Bulgarian articulations of neoliberalism can be described differently: the first as a logic of managed choice and the second as a logic of unmanaged consumerism. © 2016 Foundation for the Sociology of Health & Illness.

ITER articulated inspection arm (AIA): R and D progress on vacuum and temperature technology for remote handling

Energy Technology Data Exchange (ETDEWEB)

Perrot, Y.; Friconneau, J.P. [Robotics and Interactive Systems Unit - CEA/LIST, 92 - Fontenay aux Roses (France); Cordier, J.J.; Gargiulo, L. [Association Euratom-CEA, Centre d' Etudes de Cadarache, 13 - Saint-Paul-lez-Durance (France). Dept. de Recherches sur la Fusion Controlee; Palmer, J.D. [EFDA CSU Garching (Germany); Martin, E. [ITER International Team, Garching (Germany); Tesini, A. [ITER International Team, ITER Naka Joint Work Site, Iberaki-ken (Japan)

2004-07-01

To perform an intervention a short time after plasma shutdown, the operation of the robot will have to be under ITER conditions which means: under high vacuum, pollution avoidance and a temperature ambience around 120 C. The feasibility studies have led to the design of a robot in the shape of a 8.2 meter long articulated arm made up of 5 modules with 11 articulated joints. A single module prototype has been manufactured to be tested. The prototype was set up in a specific vacuum vessel at Tore-Supra facility that can be baked up to 230 C under high-vacuum conditions. The first tests have shown that: -) the efficiency of the actuators at 120 C was the same than in air at room temperature, the speed was slightly lower, -) the monitoring of the temperature of the motor and of the power electronics components showed an increasing of only 40 C during 3 full pitch movements, and -) most of the greases was degassed during the 1 week long baking at 200 C except one which comes from an organic material in a component that has to be identified.

ITER articulated inspection arm (AIA): R and D progress on vacuum and temperature technology for remote handling

International Nuclear Information System (INIS)

Perrot, Y.; Friconneau, J.P.; Cordier, J.J.; Gargiulo, L.; Martin, E.; Tesini, A.

2004-01-01

To perform an intervention a short time after plasma shutdown, the operation of the robot will have to be under ITER conditions which means: under high vacuum, pollution avoidance and a temperature ambience around 120 C. The feasibility studies have led to the design of a robot in the shape of a 8.2 meter long articulated arm made up of 5 modules with 11 articulated joints. A single module prototype has been manufactured to be tested. The prototype was set up in a specific vacuum vessel at Tore-Supra facility that can be baked up to 230 C under high-vacuum conditions. The first tests have shown that: -) the efficiency of the actuators at 120 C was the same than in air at room temperature, the speed was slightly lower, -) the monitoring of the temperature of the motor and of the power electronics components showed an increasing of only 40 C during 3 full pitch movements, and -) most of the greases was degassed during the 1 week long baking at 200 C except one which comes from an organic material in a component that has to be identified

Lightweight design of a vertical articulated robot using topology optimization

Energy Technology Data Exchange (ETDEWEB)

Hong, Seong Ki; Hong, Jung Ki; Jang, Gang Won [Sejong Univ., Seoul (Korea, Republic of); Kim, Tae Hyun; Park, Jin Kyun; Kim, Sang Hyun [Hyundai Heavy Industries Co., Ltd., Daejeon (Korea, Republic of)

2012-12-15

Topology optimization is applied for the lightweight design of three main parts of a vertical articulated robot: a base frame, a lower and a upper frame. Design domains for optimization are set as large solid regions that completely embrace the original parts, which are discretized by using three dimensional solid elements. Design variables are parameterized one to one to the material properties of each element by using the SIMP method. The objective of optimization is set as the multi objective form combining the natural frequencies and mean compliances of a structure for which load steps of interest are selected from the multibody dynamics analysis of a robot. The obtained results of topology optimization are post processed to designs favorable to manufacturability for casting process. The final optimized results are 11.0% (base frame), 12.0% (lower frame) and 10.0% (upper frame) lighter with similar or even higher static and dynamic stiffnesses than the original models.

Guía orientativa de recomendaciones para la intervención del Terapeuta Ocupacional en Trastorno Mental Grave = Orientative guide of recommendations for the intervention of the Occupational Therapist in Mental Disorders

Directory of Open Access Journals (Sweden)

Talavera Valver, MA

2007-02-01

Full Text Available RESUMEN:Este articulo trata sobre la intervención de Terapia Ocupacional en Trastorno Mental Grave. Se exponen propuestas de evaluación ocupacional e intervención de Terapia Ocupacional.ABSTRAC:This I articulate treats on the intervention of Occupational Therapy in Serious Mental Disorder (or Severe. Proposals of occupational evaluation and intervention of Occupational Therapy are exposed.

Differences between the production of [s] and [ʃ] in the speech of adults, typically developing children, and children with speech sound disorders: An ultrasound study.

Science.gov (United States)

Francisco, Danira Tavares; Wertzner, Haydée Fiszbein

2017-01-01

This study describes the criteria that are used in ultrasound to measure the differences between the tongue contours that produce [s] and [ʃ] sounds in the speech of adults, typically developing children (TDC), and children with speech sound disorder (SSD) with the phonological process of palatal fronting. Overlapping images of the tongue contours that resulted from 35 subjects producing the [s] and [ʃ] sounds were analysed to select 11 spokes on the radial grid that were spread over the tongue contour. The difference was calculated between the mean contour of the [s] and [ʃ] sounds for each spoke. A cluster analysis produced groups with some consistency in the pattern of articulation across subjects and differentiated adults and TDC to some extent and children with SSD with a high level of success. Children with SSD were less likely to show differentiation of the tongue contours between the articulation of [s] and [ʃ].

Differentiation to improve the articulation between levels : In the teaching of English in primary and secondary education in the Netherlands

NARCIS (Netherlands)

A.P. de Kraay

2016-01-01

In 1986, English became a compulsory subject in primary education in The Netherlands1. While secondary schools have, by law, been required to offer English since 1863 (Wilhelm, 2005) the articulation between Dutch primary and secondary education levels of English language teaching has always been

The core competencies for mental, neurological, and substance use disorder care in sub-Saharan Africa

Science.gov (United States)

Collins, Pamela Y.; Musisi, Seggane; Frehywot, Seble; Patel, Vikram

2015-01-01

The 2010 Global Burden of Disease Study points to a changing landscape in which non-communicable diseases, such as mental, neurological, and substance use (MNS) disorders, account for an increasing proportion of premature mortality and disability globally. Despite evidence of the need for care, a remarkable deficit of providers for MNS disorder service delivery persists in sub-Saharan Africa. This critical workforce can be developed from a range of non-specialist and specialist health workers who have access to evidence-based interventions, whose roles, and the associated tasks, are articulated and clearly delineated, and who are equipped to master and maintain the competencies associated with providing MNS disorder care. In 2012, the Neuroscience Forum of the Institute of Medicine convened a meeting of key stakeholders in Kampala, Uganda, to discuss a set of candidate core competencies for the delivery of mental health and neurological care, focusing specifically on depression, psychosis, epilepsy, and alcohol use disorders. This article discusses the candidate core competencies for non-specialist health workers and the complexities of implementing core competencies in low- and middle-income country settings. Sub-Saharan Africa, however, has the potential to implement novel training initiatives through university networks and through structured processes that engage ministries of health. Finally, we outline challenges associated with implementing competencies in order to sustain a workforce capable of delivering quality services for people with MNS disorders. PMID:25783229

Multidisciplinary Assessment and Diagnosis of Conversion Disorder in a Patient with Foreign Accent Syndrome

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Harrison N. Jones

2011-01-01

Full Text Available Multiple reports have described patients with disordered articulation and prosody, often following acute aphasia, dysarthria, or apraxia of speech, which results in the perception by listeners of a foreign-like accent. These features led to the term foreign accent syndrome (FAS, a speech disorder with perceptual features that suggest an indistinct, non-native speaking accent. Also correctly known as psuedoforeign accent, the speech does not typically match a specific foreign accent, but is rather a constellation of speech features that result in the perception of a foreign accent by listeners. The primary etiologies of FAS are cerebrovascular accidents or traumatic brain injuries which affect cortical and subcortical regions critical to expressive speech and language production. Far fewer cases of FAS associated with psychiatric conditions have been reported. We will present the clinical history, neurological examination, neuropsychological assessment, cognitive-behavioral and biofeedback assessments, and motor speech examination of a patient with FAS without a known vascular, traumatic, or infectious precipitant. Repeated multidisciplinary examinations of this patient provided convergent evidence in support of FAS secondary to conversion disorder. We discuss these findings and their implications for evaluation and treatment of rare neurological and psychiatric conditions.

Hemispheric Asymmetries Depend on the Phonetic Feature: A Dichotic Study of Place of Articulation and Voicing in French Stops

Science.gov (United States)

Bedoin, Nathalie; Ferragne, Emmanuel; Marsico, Egidio

2010-01-01

Dichotic listening experiments show a right-ear advantage (REA), reflecting a left-hemisphere (LH) dominance. However, we found a decrease in REA when the initial stop consonants of two simultaneous French CVC words differed in voicing rather than place of articulation (Experiment 1). This result suggests that the right hemisphere (RH) is more…

Articulated, Performance-Based Instruction Objectives Guide for Air Conditioning, Refrigeration, and Heating (Environmental Control System Installer/Servicer). Edition I.

Science.gov (United States)

Henderson, William Edward, Jr., Ed.

This articulation guide contains 17 units of instruction for the first year of a two-year vocational program designed to prepare the high school graduate to install, maintain, and repair various types of residential and commercial heating, air conditioning, and refrigeration equipment. The units are to introduce the student to fundamental theories…

Aberrant articulation of cervical vertebral transverse process: An uncommon normal variant and review of the literature

Energy Technology Data Exchange (ETDEWEB)

Ryu, Jeong Ah; Cha, Seung Woo [Dept. of Radiology, Hanyang University College of Medicine, Guri Hospital, Guri (Korea, Republic of); Song, Yoon Ah; Lee, Seung Hun; Joo, Kyung Bin [Dept. of Radiology, Hanyang University College of Medicine, Seoul Hospital, Seoul (Korea, Republic of)

2013-09-15

Aberrant articulation between two anterior tubercles is a rare congenital anomaly that should be considered for patients showing a bony projection anterior to the vertebral body on a lateral radiograph of the cervical spine. We present a case of an elongation of the anterior tubercles of the transverse processes of both the fifth and sixth cervical vertebrae. This finding is probably a form of supernumerary cervical rib developing at a level above the lowest cervical spine.

Aberrant articulation of cervical vertebral transverse process: An uncommon normal variant and review of the literature

International Nuclear Information System (INIS)

Ryu, Jeong Ah; Cha, Seung Woo; Song, Yoon Ah; Lee, Seung Hun; Joo, Kyung Bin

2013-01-01

Aberrant articulation between two anterior tubercles is a rare congenital anomaly that should be considered for patients showing a bony projection anterior to the vertebral body on a lateral radiograph of the cervical spine. We present a case of an elongation of the anterior tubercles of the transverse processes of both the fifth and sixth cervical vertebrae. This finding is probably a form of supernumerary cervical rib developing at a level above the lowest cervical spine.

Profile Language Development in students with and without Attenion Deficit Hyperactivity Disorder

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Hamid َAli-Zadeh

2010-07-01

Full Text Available Objective: The present study was designed to investigate language development in children with and without attention deficit hyperactivity disorder (ADHD. Materials & Methods: In this comparative and case–control research, 30 children with attention deficit hyperactivity disorder and 30 healthy matched children were selected simply and conveniently from the elementary first grade students of Qazvin city. Data collection tools included: test of language development– primary: 3th edition (TOLD-P:3, Connors’ rating scale – teachers form, and Raven color matrices. Data were analyzed by repeated measure analysis of variance. Results: There was significant difference in profile of language development between ADHD children and healthy children (P<0.001, but there were no significant differences between boys and girls in both case group (P=0.254 and control group (P=1.00. The results of multivariate analysis showed that the ADHD children were significantly lower in some aspects of language development skills including picture vocabulary, relative vocabulary, oral vocabulary, grammatical understanding, grammatical completion, word discrimination, listening, organizing, speaking, semantics and syntax. No significant difference was found in sentence imitation, phonemic analysis and word articulation. Conclusion: The attention deficit hyperactivity disorder children have some problems in many but not all aspects of language development.

Career Preparedness and School Achievement of Portuguese Children: Longitudinal Trend Articulations

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Maria do Céu Taveira

2017-04-01

Full Text Available Social Cognitive Career Theory suggests that students' preparedness for the school-to-work transition is a developmental process. Middle school children explore various careers, obtain feedback about their academic progress, and develop career self-efficacy and outcome expectations. These processes advance provisional educational/occupational goals. The literature has suggested articulations between career and academic development and how both vary across demographic characteristics, but longitudinal studies linking these processes are scarce. This study tested articulations between career preparedness and academic achievement during middle school years and employed gender and geographical location as potential moderators affecting the linkage between career and school domains. Participants included 429 children (47.8% girls from northern (69.5% and central Portugal (30.5% followed across four occasions of measurement (MageWave1 = 10.23, SD = 0.50. Data was collected with school records, the Multidimensional Scales of Perceived Self-Efficacy, Career Exploratory Outcome Expectations Scale, Childhood Career Exploration Inventory and Childhood Career Development Scale. Average and orthnormalized linear, quadratic and cubic trends were computed. Pearson correlation coefficients suggested positive and statistically significant associations between career exploratory outcome expectations and academic achievement average trends. Career planning and self-efficacy expectations were negatively associated with academic achievement quadratic trends. Multiple linear regression models suggested that career exploratory outcome expectations and career planning were respectively statistically significant predictors of the average and quadratic trends of academic achievement. Gender moderated the association between the career variables and academic achievement linear trends as well as the relation of career planning and self-efficacy with academic achievement

Self-disorders and schizophrenia: a phenomenological reappraisal of poor insight and noncompliance.

Science.gov (United States)

Henriksen, Mads G; Parnas, Josef

2014-05-01

Poor insight into illness is considered the primary cause of treatment noncompliance in schizophrenia. In this article, we critically discuss the predominant conceptual accounts of poor insight, which consider it as an ineffective self-reflection, caused either by psychological defenses or impaired metacognition. We argue that these accounts are at odds with the phenomenology of schizophrenia, and we propose a novel account of poor insight. We suggest that the reason why schizophrenia patients have no or only partial insight and consequently do not comply with treatment is rooted in the nature of their anomalous self-experiences (ie, self- disorders) and the related articulation of their psychotic symptoms. We argue that self-disorders destabilize the patients' experiential framework, thereby weakening their basic sense of reality (natural attitude) and enabling another sense of reality (solipsistic attitude) to emerge and coexist. This coexistence of attitudes, which Bleuler termed "double bookkeeping," is, in our view, central to understanding what poor insight in schizophrenia really is. We suggest that our phenomenologically informed account of poor insight may have important implications for early intervention, psychoeducation, and psychotherapy for schizophrenia.

IMF, BIS, and World Bank: On the Intra-institutional Articulation of the International Financial System

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Maria de Fatima Silva do Carmo Previdelli

2018-01-01

Full Text Available The international financial system could be organized into three groups. According to this classification, the first group includes the organizations that exercise the functions of regulation and supervision. In the second, we have those that are regulated and supervised by the former, and in the third, we find the organizations that do not follow such rules or supervision, forming the so-called shadow banking system. This article seeks to examine the first group, and, more specifically, how the International Monetary Fund articulates with the primary elements of such a group.

Articulating spacers used in two-stage revision of infected hip and knee prostheses abrade with time.

Science.gov (United States)

Fink, Bernd; Rechtenbach, Annett; Büchner, Hubert; Vogt, Sebastian; Hahn, Michael

2011-04-01

Articulating spacers used in two-stage revision surgery of infected prostheses have the potential to abrade and subsequently induce third-body wear of the new prosthesis. We asked whether particulate material abraded from spacers could be detected in the synovial membrane 6 weeks after implantation when the spacers were removed for the second stage of the revision. Sixteen hip spacers (cemented prosthesis stem articulating with a cement cup) and four knee spacers (customized mobile cement spacers) were explanted 6 weeks after implantation and the synovial membranes were removed at the same time. The membranes were examined by xray fluorescence spectroscopy, xray diffraction for the presence of abraded particles originating from the spacer material, and analyzed in a semiquantitative manner by inductively coupled plasma mass spectrometry. Histologic analyses also were performed. We found zirconium dioxide in substantial amounts in all samples, and in the specimens of the hip synovial lining, we detected particles that originated from the metal heads of the spacers. Histologically, zirconium oxide particles were seen in the synovial membrane of every spacer and bone cement particles in one knee and two hip spacers. The observations suggest cement spacers do abrade within 6 weeks. Given the presence of abrasion debris, we recommend total synovectomy and extensive lavage during the second-stage reimplantation surgery to minimize the number of abraded particles and any retained bacteria.

The articulated body. Physical activity, fitness and neew technologies of health

DEFF Research Database (Denmark)

Otto, Lene

2010-01-01

learns to be sensitive to differences, shape individuals’ bodily experiences. I will discuss how the Foucauldian concept of ‘technologies of the self’ and Latour’s idea bodies are ´learning to be affected’ can be helpful to understand this process. Latour suggests that the concept of ‘articulation’ – how...... of anticipations of fit bodies as essential to individual health. I identify a physical activity discourse in which new modes of knowing, experiencing and doing bodies involve new types of health technologies in which bodies must be connected to mechanical and electronic appliances, inscribed with biomedical...... the body become more articulated through knowledge and practices - can help direct our focus to “take on board the artificial and material components allowing one to progressively have a body” (1), and according to Foucault, technologies of the self “permit individuals to effect by their own means...

Towards an Articulation of the Material and Visual Turn in Organization Studies

DEFF Research Database (Denmark)

Boxenbaum, Eva; Jones, Candace; Meyer, Renate

2018-01-01

Contemporary organizations increasingly rely on images, logos, videos, building materials, graphic and product design, and a range of other material and visual artifacts to compete, communicate, form identity and organize their activities. This Special Issue focuses on materiality and visuality...... on the articles in the special issue, we further explore the affordances and limits of the material and visual dimensions of organizing in relation to novelty. We conclude by pointing out theoretical avenues for advancing multimodal research, and discuss some of the ethical, pragmatic and identity...... in the course of objectifying and reacting to novel ideas, and, more broadly, contributes to organizational theory by articulating the emergent contours of a material and visual turn in the study of organizations. In this Introduction, we provide an overview of research on materiality and visuality. Drawing...

Asking for help online: Lesbian, gay, bisexual and trans youth, self-harm and articulating the 'failed' self.

Science.gov (United States)

McDermott, Elizabeth

2015-11-01

International evidence suggests that young people are less likely to seek help for mental health problems in comparison with adults. This study focused on lesbian, gay, bisexual and trans young people who are a population group with an elevated risk of suicide and self-harm, and little is known about their help-seeking behaviour. Utilising qualitative virtual methods, lesbian, gay, bisexual and trans youth web-based discussions about seeking help for suicidal feelings and self-harming were investigated. Findings from a thematic analysis indicate that these young people wanted assistance but found it difficult to (1) ask for help, (2) articulate emotional distress and (3) 'tell' their selves as 'failed'. This analysis suggests that key to understanding these problems are emotions such as shame which arise from negotiating norms connected to heterosexuality, adolescence and rationality. I argue that these norms act to regulate what emotions it is possible to feel, what emotions it is possible to articulate and what type of young lives that can be told. The future development of health and social care interventions which aim to reduce lesbian, gay, bisexual and trans youth suicide and self-harm need to work with a nuanced understanding of the emotional life of young people if they are to be effective. © The Author(s) 2014.

Tribo-biological deposits on the articulating surfaces of metal-on-polyethylene total hip implants retrieved from patients

Science.gov (United States)

Cui, Zhiwei; Tian, Yi-Xing; Yue, Wen; Yang, Lei; Li, Qunyang

2016-06-01

Artificial total hip arthroplasty (THA) is one of the most effective orthopaedic surgeries that has been used for decades. However, wear of the articulating surfaces is one of the key failure causes limiting the lifetime of total hip implant. In this paper, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM) were employed to explore the composition and formation mechanism of the tribo-layer on the articulating surfaces of metal-on-polyethylene (MoPE) implants retrieved from patients. Results showed that, in contrast to conventional understanding, the attached tribo-layer contained not only denatured proteins but also a fraction of polymer particles. The formation of the tribo-layer was believed to relate to lubrication regime, which was supposed to be largely affected by the nature of the ultra-high-molecule-weight-polyethylene (UHMWPE). Wear and formation of tribo-layer could be minimized in elasto-hydrodynamic lubrication (EHL) regime when the UHMWPE was less stiff and have a morphology containing micro-pits; whereas the wear was more severe and tribo-layer formed in boundary lubrication. Our results and analyses suggest that enhancing interface lubrication may be more effective on reducing wear than increasing the hardness of material. This finding may shed light on the design strategy of artificial hip joints.

Deontological and utilitarian ethics: a brief introduction in the context of disorders of consciousness.

Science.gov (United States)

Playford, Richard C; Roberts, Tom; Playford, E Diane

2015-01-01

The aims of this paper are to discuss three different ethical frameworks; to briefly consider some of the philosophical positions concerning the nature of personhood. Clear consideration of these issues demonstrates the complexity of decision making in persisting disorders of consciousness. Three different ethical frameworks, Kantian deontology, act utilitarianism and rule utilitarianism, are described and three different accounts of personhood are presented and analysed. These result in very different approaches to the management of patients in permanent vegetative states (PVSs), making it possible to argue for withdrawal of clinically assisted nutrition and hydration in all cases, considering the issues on a case by case basis or continuing to treat all patients whatever their wishes. These results explain why doctors often have different views on how to treat patients in PVS, particularly with regard to the withdrawal of clinically assisted nutrition and hydration. Understanding such issues may help clinicians articulate more clearly the reasons for their intuitions surrounding the management of patients in PVSs. Implications for Rehabilitation Patients with persisting disorders of consciousness pose significant dilemmas for clinicians and family members. Utilitarianism is a consequentialist theory, that is, it is concerned with the outcome of our actions to determine their morality. It is the concept that the right action is the one that will result in "the greatest amount of good for the greatest number". Deontological ethics suggests that there are certain sorts of acts that are wrong in themselves independent of the result of such actions. Personhood can be approached from a variety of perspectives including biological, relational, religious and psychological. Understanding different ethical frameworks, and the nature of personhood, may help clinicians articulate more clearly the reasons for their intuitions.

A case study in nonlinear dynamics and control of articulated spacecraft: The Space Station Freedom with a mobile remote manipulator system

Science.gov (United States)

Bennett, William H.; Kwatny, Harry G.; Lavigna, Chris; Blankenship, Gilmer

1994-01-01

The following topics are discussed: (1) modeling of articulated spacecraft as multi-flex-body systems; (2) nonlinear attitude control by adaptive partial feedback linearizing (PFL) control; (3) attitude dynamics and control for SSF/MRMS; and (4) performance analysis results for attitude control of SSF/MRMS.

Design and characterization of a multi-articulated robotic bat wing

International Nuclear Information System (INIS)

Bahlman, Joseph W; Swartz, Sharon M; Breuer, Kenneth S

2013-01-01

There are many challenges to measuring power input and force output from a flapping vertebrate. Animals can vary a multitude of kinematic parameters simultaneously, and methods for measuring power and force are either not possible in a flying vertebrate or are very time and equipment intensive. To circumvent these challenges, we constructed a robotic, multi-articulated bat wing that allows us to measure power input and force output simultaneously, across a range of kinematic parameters. The robot is modeled after the lesser dog-faced fruit bat, Cynopterus brachyotis, and contains seven joints powered by three servo motors. Collectively, this joint and motor arrangement allows the robot to vary wingbeat frequency, wingbeat amplitude, stroke plane, downstroke ratio, and wing folding. We describe the design, construction, programing, instrumentation, characterization, and analysis of the robot. We show that the kinematics, inputs, and outputs demonstrate good repeatability both within and among trials. Finally, we describe lessons about the structure of living bats learned from trying to mimic their flight in a robotic wing. (paper)

[The modified method registration of kinesthetic evoked potentials and its application for research of proprioceptive sensitivity disorders at spondylogenic cervical myelopathy].

Science.gov (United States)

Gordeev, S A; Voronin, S G

2016-01-01

To analyze the efficacy of modified (passive radiocarpal articulation flexion/extension) and «standard» (passive radiocarpal articulation flexion) methods of kinesthetic evoked potentials for proprioceptive sensitivity assessment in healthy subjects and patients with spondylotic cervical myelopathy. The study included 14 healthy subjects (4 women and 10 men, mean age 54.1±10.5 years) and 8 patients (2 women and 6 men, mean age 55.8±10.9 years) with spondylotic cervical myelopathy. Muscle-joint sensation was examined during the clinical study. A modified method of kinesthetic evoked potentials was developed. This method differed from the "standard" one by the organization of a cycle including several passive movements,where each new movement differed from the preceding one by the direction. The modified method of kinesthetic evoked potentials ensures more reliable kinesthetic sensitivity assessment due to movement variability. Asignificant increaseof the latent periods of the early components of the response was found in patients compared to healthy subjects. The modified method of kinesthetic evoked potentials can be used for objective diagnosis of proprioceptive sensitivity disorders in patients with spondylotic cervical myelopathy.

Short-term effect of short, intensive speech therapy on articulation and resonance in Ugandan patients with cleft (lip and) palate

NARCIS (Netherlands)

Anke Luyten; H. Vermeersch; A. Hodges; K. Bettens; K. van Lierde; G. Galiwango

2016-01-01

Objectives: The purpose of the current study was to assess the short-term effectiveness of short and intensive speech therapy provided to patients with cleft (lip and) palate (C(L)P) in terms of articulation and resonance. Methods: Five Ugandan patients (age: 7.3-19.6 years) with non-syndromic C(L)P

Study on Roll Instability Mechanism and Stability Index of Articulated Steering Vehicles

Directory of Open Access Journals (Sweden)

Xuefei Li

2016-01-01

Full Text Available This study examines the roll instability mechanism and stability index of articulated steering vehicles (ASVs by taking wheel loaders as the research object. A seven-degree-of-freedom nonlinear dynamics model of the ASVs is built on the basis of multibody dynamics. A physical prototype model of an ASV is designed and manufactured to validate the dynamic model. Test results reasonably agree with the simulation results, which indicates that the established dynamic model can reasonably describe ASV movements. Detailed analysis of the rollover stability of the wheel loader is performed with the use of the established dynamic model. Analysis results show that rollover will occur when the roll angular velocity exceeds a critical threshold, which is affected by lateral acceleration and slope angle. On this basis, a dynamic stability index applicable to the ASVs is presented.

Boundaries to the articulation of possible selves through social networking sites: the case of Facebook profilers' social connectedness

OpenAIRE

Zwier, S.; Araujo, T.; Boukes, M.; Willemsen, L.

2011-01-01

This study aims to contribute to an emerging literature that seeks to understand how identity markers on social networking sites (SNSs) shape interpersonal impressions, and particularly the boundaries that SNSs present for articulating unconstrained 'hoped-for possible selves.' An experiment employing mock-up Facebook profiles was conducted, showing that appearing with friends on a Facebook profile picture as well as increasingly higher number of Facebook friends strengthened perceptions of a...

La partera profesional: articulating identity and cultural space for a new kind of midwife in Mexico.

Science.gov (United States)

Davis-Floyd, R

2001-01-01

This article documents the emergence of a new kind of midwife in Mexico, the thoroughly postmodern partera profesional. It traces the transnational conjunctures that facilitated her creation, illustrates aspects of her philosophy and praxis, and probes her ongoing articulations of identity. These women, who are of diverse sociocultural backgrounds, initially sought training from American direct-entry midwives in the independent out-of-hospital midwifery model; now, they are adapting that model to the situation in Mexico. Through their own practices, through intensive liaison work with traditional midwives, and through organizing national midwifery conferences and meetings, they are creating midwifery as both incipient profession and nascent social movement. Some of them operate outside the medical system while others are carving a niche within it. The mere existence of these self-consciously activist midwives constitutes a critique of monological Mexican medicine and its high cesarean rates; however, these women face a long struggle to define their identities, legalize their practices, and generate a sustainable space within the emergent Mexican technocracy. To their intense dismay, this struggle must take place within the context of the escalating disappearance of the traditional midwives whom they seek to support. The tension they feel between their desire to preserve traditional midwifery and their desire to create professional midwifery is a recurrent theme. These goals alternately complement and conflict with one another, yet both are central to the partera profesional's ongoing efforts at identity articulation.

Automated analysis of connected speech reveals early biomarkers of Parkinson's disease in patients with rapid eye movement sleep behaviour disorder.

Science.gov (United States)

Hlavnička, Jan; Čmejla, Roman; Tykalová, Tereza; Šonka, Karel; Růžička, Evžen; Rusz, Jan

2017-02-02

For generations, the evaluation of speech abnormalities in neurodegenerative disorders such as Parkinson's disease (PD) has been limited to perceptual tests or user-controlled laboratory analysis based upon rather small samples of human vocalizations. Our study introduces a fully automated method that yields significant features related to respiratory deficits, dysphonia, imprecise articulation and dysrhythmia from acoustic microphone data of natural connected speech for predicting early and distinctive patterns of neurodegeneration. We compared speech recordings of 50 subjects with rapid eye movement sleep behaviour disorder (RBD), 30 newly diagnosed, untreated PD patients and 50 healthy controls, and showed that subliminal parkinsonian speech deficits can be reliably captured even in RBD patients, which are at high risk of developing PD or other synucleinopathies. Thus, automated vocal analysis should soon be able to contribute to screening and diagnostic procedures for prodromal parkinsonian neurodegeneration in natural environments.

Investigating pianists' individuality in the performance of five timbral nuances through patterns of articulation, touch, dynamics and pedalling

Directory of Open Access Journals (Sweden)

Michel eBernays

2014-03-01

Full Text Available Timbre is an essential expressive feature in piano performance. Concert pianists use a vast palette of timbral nuances to colour their performances at the microstructural level. Although timbre is generally envisioned in the pianistic community as an abstract concept carried through an imaged vocabulary, performers may share some common strategies of timbral expression in piano performance. Yet there may remain further leeway for idiosyncratic processes in the production of piano timbre nuances. In this study, we examined the patterns of timbral expression in performances by four expert pianists. Each pianist performed four short pieces, each with five different timbral intentions (bright, dark, dry, round, and velvety. The performances were recorded with the high-accuracy Bösendorfer CEUS system. Fine-grained performance features of dynamics, touch, articulation and pedalling were extracted. Reduced PCA performance spaces and descriptive performance portraits confirmed that pianists exhibited unique, specific profiles for different timbral intentions, derived from underlying traits of general individuality, while sharing some broad commonalities of dynamics and articulation for each timbral intention. These results confirm that pianists’ abstract notions of timbre correspond to reliable patterns of performance technique. Furthermore, these effects suggest that pianists can express individual styles while complying with specific timbral intentions.

The job that no one wants to do? Museum educators’ articulations about guided tours

Directory of Open Access Journals (Sweden)

Cecilia Rodehn

2017-03-01

Full Text Available The aim of this paper is to investigate museum educators’ articulations of their performance during guided tours. The paper investigates preparations for a guided tour, considerations related to doing guided tours and the events after the guided tour. The text focus especially on preparation and the aftermath as this is not normally discussed in research on museum education. The paper is based on participant observation of guided tours, filming of guided tours and qualitative semi-structured interviews. The material is analysed using performance theories and theories on materiality. The paper seeks to unearth knowledge imbued in the museum educators’ performance and reveal what can be known from guiding bodies.

State Articulated Instructional Objectives Guide for Occupational Education Programs. State Pilot Model for Automotive Mechanics (DCC V-003) and Automotive Mechanics (High School).

Science.gov (United States)

North Carolina State Dept. of Community Colleges, Raleigh.

This articulation instructional objective guide for automotive mechanics contains summary information on fifteen blocks (courses) of instruction. They are introduction to automotive technology; lubrication and vehicle operating maintenance; cooling system maintenance and repair; automobile heater maintenance and repair; braking system maintenance…

Between casual commitment and cross-media articulation – the faith of the Napkin

DEFF Research Database (Denmark)

Bødker, Susanne; Petersen, Anja Bechmann

2008-01-01

was wrong with the Napkin, and why did it fail? The Napkin suffered many of the problems known to CSCW: It laced reciprocity of visibility and commitment between reporters and editors; it did not give sufficient overview of media processes and products, in particular it was impossible to motivate stories......This paper presents an analysis of the Napkin, a collaborative technology designed to support news reporters in their struggle to handle the integrated production of news stories to multiple media platforms. The Napkin was abandoned while we studied it, and this raised the questions of what...... and overview their relationships with other stories. The casual metaphor of a Napkin was in contrast to how commitments got perceived by reporters and editors. The paper uses these discussions to revisit the notion of articulation work...

Design and Development of an Automatic Tool Changer for an Articulated Robot Arm

International Nuclear Information System (INIS)

Ambrosio, H; Karamanoglu, M

2014-01-01

In the creative industries, the length of time between the ideation stage and the making of physical objects is decreasing due to the use of CAD/CAM systems and adicitive manufacturing. Natural anisotropic materials, such as solid wood can also be transformed using CAD/CAM systems, but only with subtractive processes such as machining with CNC routers. Whilst some 3 axis CNC routing machines are affordable to buy and widely available, more flexible 5 axis routing machines still present themselves as a too big investment for small companies. Small refurbished articulated robots can be a cheaper alternative but they require a light end-effector. This paper presents a new lightweight tool changer that converts a small 3kg payload 6 DOF robot into a robot apprentice able to machine wood and similar soft materials

Design and Development of an Automatic Tool Changer for an Articulated Robot Arm

Science.gov (United States)

Ambrosio, H.; Karamanoglu, M.

2014-07-01

In the creative industries, the length of time between the ideation stage and the making of physical objects is decreasing due to the use of CAD/CAM systems and adicitive manufacturing. Natural anisotropic materials, such as solid wood can also be transformed using CAD/CAM systems, but only with subtractive processes such as machining with CNC routers. Whilst some 3 axis CNC routing machines are affordable to buy and widely available, more flexible 5 axis routing machines still present themselves as a too big investment for small companies. Small refurbished articulated robots can be a cheaper alternative but they require a light end-effector. This paper presents a new lightweight tool changer that converts a small 3kg payload 6 DOF robot into a robot apprentice able to machine wood and similar soft materials.

Influence of tire inflating pressure at dynamic forces acting on articulated trolleybus

Directory of Open Access Journals (Sweden)

Polach Pavel

2017-01-01

Full Text Available ŠKODA VÝZKUM s.r.o. cooperated on the development of the NEOPLAN DMA low-floor articulated trolleybus intended for the Boston city. Multibody models and finite element models of the trolleybus were utilized in the stage of the vehicle design. At the end of the stage of computer modelling and testing of the trolleybus prototype a decision to reduce tire inflating of vehicles in serial production (together with the change the type of shock absorbers used in trolleybus suspension was made. The impact of this change on forces acting in the trolleybus suspension elements (i.e. in air springs and shock absorbers and radius rods on the trolleybus chassis when running on an uneven test track was investigated using multibody simulations. Time histories of the forces calculated utilising multibody models were used as input data of the trolleybus finite element models.

Poultry Products Management. 2+2+2 Articulated Curriculum in Agricultural Technology: First Year Final Report. July 1, 1989-June 30, 1990.

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Northeast Texas Community Coll., Mount Pleasant.

This guide is for an articulated two-year high school, two-year college curriculum for poultry products management developed by two postsecondary and five secondary institutions and representatives of the private sector in Texas. The guide includes the following: (1) a brief description of the occupation of poultry products manager; (2) the basic…

Space Photovoltaic Concentrator Using Robust Fresnel Lenses, 4-Junction Cells, Graphene Radiators, and Articulating Receivers

Science.gov (United States)

O'Neill, Mark; McDanal, A. J.; Brandhorst, Henry; Spence, Brian; Iqbal, Shawn; Sharps, Paul; McPheeters, Clay; Steinfeldt, Jeff; Piszczor, Michael; Myers, Matt

2016-01-01

At the 42nd PVSC, our team presented recent advances in our space photovoltaic concentrator technology. These advances include more robust Fresnel lenses for optical concentration, more thermally conductive graphene radiators for waste heat rejection, improved color-mixing lens technology to minimize chromatic aberration losses with 4-junction solar cells, and an articulating photovoltaic receiver enabling single-axis sun-tracking, while maintaining a sharp focal line despite large beta angles of incidence. In the past year, under a NASA Phase II SBIR program, our team has made much additional progress in the development of this new space photovoltaic concentrator technology, as described in this paper.

Automatic path-planning for a multilink articulated boom within the torus of a fusion reactor

International Nuclear Information System (INIS)

Smidt, D.

1986-08-01

For in-torus maintenance of fusion machines a manipulator is conveyed to the working area by a multilink-transporter, also called 'articulated boom'. Systems of this type have in general four to five links and move in the midplane of the torus. They are kinematically redundant and have a very restricted working space. In this paper automatic methods for the collision free approach of any position of the final joint within the reach of the transporter are presented, including insertion and removal. By automatic teach-in with the CAD-simulation a table of safe configurations can be generated and supplemented by a fine-positioning algorithm. (orig.) [de

Fuzzy Control of Yaw and Roll Angles of a Simulated Helicopter Model Includes Articulated Manipulators

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Hossein Sadegh Lafmejani

2015-09-01

Full Text Available Fuzzy logic controller (FLC is a heuristic method by If-Then Rules which resembles human intelligence and it is a good method for designing Non-linear control systems. In this paper, an arbitrary helicopter model includes articulated manipulators has been simulated with Matlab SimMechanics toolbox. Due to the difficulties of modeling this complex system, a fuzzy controller with simple fuzzy rules has been designed for its yaw and roll angles in order to stabilize the helicopter while it is in the presence of disturbances or its manipulators are moving for a task. Results reveal that a simple FLC can appropriately control this system.

How are they doing? Listening as fathers of children with autism spectrum disorder compare themselves to fathers of children who are typically developing.

Science.gov (United States)

Cheuk, Samantha; Lashewicz, Bonnie

2016-04-01

The growing prevalence of autism spectrum disorder is accompanied by ongoing efforts to understand and support parents in the face of challenges related to their child's autism spectrum disorder. Although fathers are increasingly hands-on in raising children, research focus on parenting children with autism spectrum disorder continues to be skewed toward experiences of mothers. Our purpose in this article is to contribute understandings of how fathers of children with autism spectrum disorder perceive themselves to be managing, and we undertake this by examining comparisons fathers of children with autism spectrum disorder make between their parenting experiences and experiences of fathers of typically developing children. A purposive sample of 28 fathers of children (aged 2-13 years) with autism spectrum disorder living in an urban center in Western Canada participated in in-depth interviews about their parenting successes and challenges. We found fathers speak of universal fathering experiences yet articulate their own sense of loss and efforts to come to terms with unanticipated demands associated with autism spectrum disorder. Fathers of children with autism spectrum disorder feel "pangs of jealousy" toward fathers of typically developing children, yet they are keenly attentive to their own child's development and convey a sense of gratitude for their child's capabilities and personality amidst an appreciation for trials and triumphs of fathering in general and fathering a child with autism spectrum disorder in particular. © The Author(s) 2015.

Implications of Shared Interactive Displays for Work at a Surgery Ward: Coordination, Articulation Work and Context-awareness

DEFF Research Database (Denmark)

Bossen, Claus; Jensen, Lis Witte Kjær

2008-01-01

We report on experiences gained from the use at a surgery ward of shared interactive displays to support coordination and communication.  The displays merge large displays, video feed, RFID tag, chat and mobile phones to facilitate better coordination and articulation of work tasks and enhance...... appropriate meaning to new clues by clinicians and learning new ways of cooperating. Trade-offs had to be made, since work and benefits were differentially redistributed. We propose that computer support for medical work should support flexible appropriation and learning....

A Model to Rehabilitate a Fossilized Pronunciation Error of Turkish English Language Teachers: the English Consonant Phoneme ( Wrongly Articulated as ( Through Nasal Devoicing

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Mehmet Demirezen

2007-10-01

Full Text Available Turkish English language teachers have a general affinity to mispronounce theword-final /ng/ sound combination as /ŋk/ form, but not in an /Iŋ/ form, which is theright case. This is a typical case of a fossilized pronunciation. The result of thearticulation is a bad sounding articulation that gives a serious hardship to the foreignlanguage teacher. It must be borne in mind that bad pronunciation impedes and obscuresintelligibility, accuracy, fluency, and automatic control of pronunciation in the targetlanguage. The fossilized pronunciation errors keep bothering the communicativefluency of the teacher trainees and novice foreign language teachers who are on the job.Since teaching foreign languages is a vocational job, developing a good intelligiblepronunciation skill is an integral part of the profession. In this study, a very commonand wrong articulation of /N/ phoneme as /Nk/ by Turkish English teachers will be triedto be rehabilitated by using the audioarticulation model.

The articulations of the neurocranium in the postnatal skeleton of the domestic fowl (Gallus gallus domesticus).

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Hogg, D A

1978-09-01

In the neurocranium of the domestic fowl the centres of ossification present at hatching and appearing susbequently have been investigated and illustrated. The controversy over centres around the orbit is reviewed and it is concluded that paired laterally placed pleurosphenoids are present by the time of hatching, while paired orbitosphenoids situated near the midline and dorsal to the optic foramen do not appear until between 70 and 91 days after hatching. No additional "presphenoid" centres were detected. The neurocranial articulations were studied: 27, many of them paired, were identified. The sequence and timing of synostosis were determined.

Grades and Withdrawal Rates in Cell Biology and Genetics Based upon Institution Type for General Biology and Implications for Transfer Articulation Agreements

Science.gov (United States)

Regier, Kimberly Fayette

2016-01-01

General biology courses (for majors) are often transferred from one institution to another. These courses must prepare students for upper division courses in biology. In Colorado, a Biology Transfer Articulation Agreement that includes general biology has been created across the state. An evaluation was conducted of course grades in two upper…

Comparison of two speech privacy measurements, articulation index (AI) and speech privacy noise isolation class (NIC'), in open workplaces

Science.gov (United States)

Yoon, Heakyung C.; Loftness, Vivian

2002-05-01

Lack of speech privacy has been reported to be the main dissatisfaction among occupants in open workplaces, according to workplace surveys. Two speech privacy measurements, Articulation Index (AI), standardized by the American National Standards Institute in 1969, and Speech Privacy Noise Isolation Class (NIC', Noise Isolation Class Prime), adapted from Noise Isolation Class (NIC) by U. S. General Services Administration (GSA) in 1979, have been claimed as objective tools to measure speech privacy in open offices. To evaluate which of them, normal privacy for AI or satisfied privacy for NIC', is a better tool in terms of speech privacy in a dynamic open office environment, measurements were taken in the field. AIs and NIC's in the different partition heights and workplace configurations have been measured following ASTM E1130 (Standard Test Method for Objective Measurement of Speech Privacy in Open Offices Using Articulation Index) and GSA test PBS-C.1 (Method for the Direct Measurement of Speech-Privacy Potential (SPP) Based on Subjective Judgments) and PBS-C.2 (Public Building Service Standard Method of Test Method for the Sufficient Verification of Speech-Privacy Potential (SPP) Based on Objective Measurements Including Methods for the Rating of Functional Interzone Attenuation and NC-Background), respectively.

Tensorial dynamic time warping with articulation index representation for efficient audio-template learning.

Science.gov (United States)

Le, Long N; Jones, Douglas L

2018-03-01

Audio classification techniques often depend on the availability of a large labeled training dataset for successful performance. However, in many application domains of audio classification (e.g., wildlife monitoring), obtaining labeled data is still a costly and laborious process. Motivated by this observation, a technique is proposed to efficiently learn a clean template from a few labeled, but likely corrupted (by noise and interferences), data samples. This learning can be done efficiently via tensorial dynamic time warping on the articulation index-based time-frequency representations of audio data. The learned template can then be used in audio classification following the standard template-based approach. Experimental results show that the proposed approach outperforms both (1) the recurrent neural network approach and (2) the state-of-the-art in the template-based approach on a wildlife detection application with few training samples.

Development of an integrated closed loop control system with virtual reality monitoring for Prototype Robotic Articulated System (PRAS)

International Nuclear Information System (INIS)

Rastogi, Naveen; Dutta, Pramit; Gotewal, K.K.

2015-01-01

The Prototype Robotic Articulated System (PRAS) is a servo driven 4 degrees of freedom robotic arm capable of handling of upto 5 kg payload. A virtual reality based monitoring application has been developed in blender and was intergrated with the control system to read the joint values of the robotic arm at 10Hz and update the CAD model to visualize the robotic operations remotely. This paper presents the design details and implementation results of the integrated control system for PRAS

Utilizing social media to study information-seeking and ethical issues in gene therapy

DEFF Research Database (Denmark)

Robillard, Julie M; Whiteley, Louise Emma; Johnson, Thomas Wade

2013-01-01

The field of gene therapy is rapidly evolving, and while hopes of treating disorders of the central nervous system and ethical concerns have been articulated within the academic community, little is known about views and opinions of different stakeholder groups.......The field of gene therapy is rapidly evolving, and while hopes of treating disorders of the central nervous system and ethical concerns have been articulated within the academic community, little is known about views and opinions of different stakeholder groups....

Anatomic relationships of the distal and proximal radioulnar joints articulating surface areas, and of the radius and ulna bone volumes – implications for biomechanical studies of the distal and proximal radioulnar joints and forearm bones

Directory of Open Access Journals (Sweden)

Paul S C Malone

2016-07-01

Full Text Available BackgroundPrevious work from this laboratory has evidenced the biomechanical role of forearm osseoligamentous structures in load transfer of applied forces. It has shown that transmitted forces across the distal radioulnar joint (DRUJ and proximal radioulnar joint (PRUJ are similar though not identical under axial loading conditions. The purpose of the study was to assess the articulating surface areas of the radioulnar joints and the volumes of the forearm bones addressing the hypothesis that there may be anatomic adaptations that reflect the biomechanical function of the integrated forearm unit.MethodsThe articulating surface areas of PRUJ and DRUJ were assessed using a laser scanner in 24 cadaver forearms. The articulating joint surfaces were additionally delineated from standardized photographs assessed by three observers. The surface areas of matched pairs of joints were compared on the null hypothesis that these were the same within a given forearm specimen. An additional 44 pairs of matched forearm bone volumes were measured using water displacement technique and again compared through statistical analysis (paired sample t-test, and Bland Altman analysis.ResultsThe findings of this study are that the articulating surface areas of the DRUJ and PRUJ as well as the bone volumes are significantly different and yet strongly correlated. The paired sample t-test showed a significant difference between the surface areas of the DRUJ and PRUJ (p<0.05. The PRUJ articulating surface area was marginally larger than the DRUJ with a PRUJ : DRUJ ratio of 1.02. Paired sample t-test showed a significant difference between the two bone volumes (p<0.01 with a radius to ulna bone volume ratio of 0.81. When the olecranon was disregarded, radius volume was on average 4% greater than ulna volume.ConclusionsThis study demonstrated defines the anatomical relationships between the two forearm bones and their articulating joints when matched for specimen. The data

Addictions Neuroclinical Assessment: A Neuroscience-Based Framework for Addictive Disorders.

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Kwako, Laura E; Momenan, Reza; Litten, Raye Z; Koob, George F; Goldman, David

2016-08-01

This article proposes a heuristic framework for the Addictions Neuroclinical Assessment that incorporates key functional domains derived from the neurocircuitry of addiction. We review how addictive disorders (ADs) are presently diagnosed and the need for new neuroclinical measures to differentiate patients who meet clinical criteria for addiction to the same agent while differing in etiology, prognosis, and treatment response. The need for a better understanding of the mechanisms provoking and maintaining addiction, as evidenced by the limitations of current treatments and within-diagnosis clinical heterogeneity, is articulated. In addition, recent changes in the nosology of ADs, challenges to current classification systems, and prior attempts to subtype individuals with ADs are described. Complementary initiatives, including the Research Domain Criteria project, that have established frameworks for the neuroscience of psychiatric disorders are discussed. Three domains-executive function, incentive salience, and negative emotionality-tied to different phases in the cycle of addiction form the core functional elements of ADs. Measurement of these domains in epidemiologic, genetic, clinical, and treatment studies will provide the underpinnings for an understanding of cross-population and temporal variation in addictions, shared mechanisms in addictive disorders, impact of changing environmental influences, and gene identification. Finally, we show that it is practical to implement such a deep neuroclinical assessment using a combination of neuroimaging and performance measures. Neuroclinical assessment is key to reconceptualizing the nosology of ADs on the basis of process and etiology, an advance that can lead to improved prevention and treatment. Published by Elsevier Inc.

Audiometric Profiles in Autism Spectrum Disorders: Does Subclinical Hearing Loss Impact Communication?

Science.gov (United States)

Demopoulos, Carly; Lewine, Jeffrey David

2016-01-01

Rates of hearing impairment in individuals with Autism Spectrum Disorders (ASD) are higher than those reported in the general population. Although ASD is not caused by hearing impairment, it may exacerbate symptomatology. Participants with ASD (N = 60) and typically developing peers (N = 16) aged 5-18 years underwent a comprehensive audiological screening (pure tone audiometry, uncomfortable loudness level, tympanometry, acoustic reflexes, distortion product otoacoustic emissions, and auditory brainstem response) and assessment of communication abilities (expressive/receptive language, articulation, phonological awareness, and vocal affect recognition). Incidence of abnormal findings on at least one measure of audiological functioning was higher for the ASD group (55%) than controls (14.9%) or the general population estimate (6%). The presence of sound sensitivity was also considerably higher for the ASD group (37%) compared with controls (0%) or general population estimates (8-15%). When participants with ASD were dichotomized into groups with and without evidence of clinical audiological abnormality, no significant differences were identified on measures of communication; however, results of correlational analyses indicated that variability in hearing thresholds at middle range frequencies (2000 Hz) was significantly related to performance on all measures of speech articulation and language after correction for multiple comparisons (r = -0.48 to r = -0.53, P <  0.0045). These findings suggest that dichotomized classification of clinical audiology may not be sufficient to understand the role of subclinical hearing loss in ASD symptomatology and that treatment studies for mild/subclinical hearing loss in this population may be worthwhile. © 2015 International Society for Autism Research, Wiley Periodicals, Inc.

Video-cued narrative reflection: a research approach for articulating tacit, relational, and embodied understandings.

Science.gov (United States)

Raingruber, Bonnie

2003-10-01

The author's purpose in this article is to describe the effectiveness of video-cued narrative reflection as a research approach for accessing relational, practice-based, and lived understandings. Video-cued narrative reflection provides moment-by-moment access to tacit experience. The immediate nature of the videotape captures emotional nuances, embodied perceptions, spatial influences, relational understandings, situational factors, and temporal manifestations. By watching videotaped interactions, participants are able to re-collect, re-experience, and interpret their life world. Video-cued narrative reflection allows participants to be simultaneously engaged and reflective while describing significant understandings. By inserting audiotaped reflective commentary of participants into the original videotape transcript, contextual meanings can be located and articulated more easily. Although not appropriate for all types of research, this approach offers promise for certain studies.

Articulated dental cast analysis of asymptomatic and symptomatic populations

Science.gov (United States)

Cordray, Frank E

2016-01-01

Dental instrumentation has long provided insight into the mechanism of musculo-skeletal function of the gnathic system. While large population studies associate dental arch displacement (DAD), especially laterally, with symptoms, mandibular condyle displacement (CD) resulting from DAD has not been targeted as possibly etiologic in the production of common muscle contraction headache (CMCH) and temporo-mandibular dysfunction (TMD). The objective was to evaluate the three-dimensional nature of DAD and CD between the seated condylar position (SCP) and the intercuspal position (ICP) and to compare results derived from large deprogrammed asymptomatic and symptomatic populations. A total of 1 192 sets of dental casts collected from asymptomatic and symptomatic populations were articulated in the SCP. The initial occlusal contact, DAD, and condylar displacement were evaluated for frequency, direction, and magnitude of displacement between the SCP and ICP. The data revealed significant displacement between the SCP and ICP of the condyles (displaced most frequently inferior (down) and posterior (distal)) and substantially increased frequency and magnitude of displacement of the dental arches (with posterior premature occlusal contacts, increased overjet, decreased overbite, midline differences, and occlusal classification changes) in symptomatic subjects. These discrepancies were statistically significant and clinically significant. The data support the concept of increased DAD and CD with dysfunction. Transverse condylar displacement, commonly presenting with dental cross bite, may be associated with CMCH and TMD. Displacement of the mandibular condyle may be an etiologic factor in CMCH and dysfunction of the temporo-mandibular joint. PMID:27357324

Early results of metal on metal articulation total hip arthroplasty in young patients.

Science.gov (United States)

Mohamad, J A; Kwan, M K; Merican, A M; Abbas, A A; Kamari, Z H; Hisa, M K; Ismail, Z; Idrus, R M

2004-12-01

We report our early experience of 20 cases of metal on metal articulation total hip arthroplasty in 19 young patients. Avascular necrosis of the femoral head (63%) was the commonest diagnosis for patients undergoing this procedure, followed by osteoarthritis (21%). In general, most of the patients were young and physically active with an average age of 43.1 years (range, 25 to 58 years). The average follow-up period was 18 months (range, 7 to 46 months). The mean total Harris Hip Score preoperatively and at final follow-up was 31 points and 89 points respectively. The mean total Pain Score improved from an average of 11.5 to 41.1 points at final follow-up. Sixteen (84%) of the patients had a good to excellent hip score. There was one dislocation, which stabilized after reduction and conservative management. One case of early infection underwent a two-staged revision.

Is It Necessary to Articulate a Research Methodology When Reporting on Theoretical Research?

Directory of Open Access Journals (Sweden)

Juliana Smith

2017-05-01

Full Text Available In this paper the authors share their insights on whether it is necessary to articulate a research methodology when reporting on theoretical research. Initially the authors, one being a supervisor and the other, a PhD student and a colleague, were confronted with the question during supervision and writing of a thesis on theoretical research. Reflection on the external examiners’ reports about whether a research methodology for theoretical research is necessary prompted the writing of this paper. In order to answer the question, the characteristics of theoretical research are clarified and contrasting views regarding the necessity or not of including a research methodology section in such a thesis, are examined. The paper also highlights the justification for including a research methodology in a thesis that reports on theoretical research, investigates the soundness of such justification and finally draws conclusions on the matter.

Articulaciones (ATemporales en el Síntoma y en la Bulimia (ATemporal Articulations in the Symptom and Bulimia

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Esteban Radiszcz

2006-11-01

Full Text Available Mediante la comparación de un caso de disorexia y de otro de bulimia, se explicitan las diferencias que separan a ambos fenómenos psicopatológicos en cuanto a sus articulaciones (atemporales. Se sostiene que mientras la disorexia se despliega en un futuro anterior propio de la temporalidad simbólica del retorno de lo reprimido, la bulimia da cuenta de una temporalidad circular impulsada por la repetición. Sin embargo, dichas diferencias sólo pueden explicarse en función de la presencia de una desigualdad aún más relevante en las articulaciones psicopato-lógicas de la bulimia y del síntoma. Si la (atemporalidad de la bulimia se distingue de aquella que opera en el síntoma, ello se debe a que la bulimia no constituye una verdadera formación sintomato-lógica.Through the comparison of a case of Dysorexia and another of Bulimia the differences, in terms of (atemporal articulations, among the two psychopathological phenomena are made explicit. It is argued that while Dysorexia unfolds in the past future of the symbolic temporality of the return of the repressed, Bulimia unravels in a circular temporality driven by repetition. These differences can only be explained through the presence of an even more relevant dissimilarity in the psycopatho-logical articulations of Bulimia and the symptom. If the (atemporality of Bulimia is distinguished from the one operating in the symptom, it is due to the fact that Bulimia does not constitute a true symptomato-logical formation.

Global Knowledge Futures: Articulating the Emergence of a New Meta-level Field

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Jennifer M. Gidley

2013-06-01

Full Text Available In this paper I articulate a new meta-level field of studies that I call global knowledge futures—a field through which other emerging transdisciplinary fields can be integrated to cohere knowledge at a higher level. I contrast this with the current dominant knowledge paradigm of the global knowledge economy with its fragmentation, commodification and instrumentalism based on neoliberal knowledge capitalism. I take a big-picture, macrohistorical lens to the new thinking and new knowledge patterns that are emerging within the evolution of consciousness discourse. I explore three discourses: postformal studies, integral studies and planetary studies—using a fourth discourse, futures studies, to provide a macro-temporal framing. By extending the meta-fields of postformal, integral and planetary studies into a prospective future dimension, I locate areas of development where these leading-edge discourses can be brought into closer dialogue with each other. In this meeting point of four boundary-spanning discourses I identify the new meta-level field of global knowledge futures, grounded in human thinking capacities, such as creativity, imagination, dialogue and collaboration.

Influence of timing of delayed hard palate closure on articulation skills in 3-year-old Danish children with unilateral cleft lip and palate.

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Willadsen, Elisabeth; Boers, Maria; Schöps, Antje; Kisling-Møller, Mia; Nielsen, Joan Bogh; Jørgensen, Line Dahl; Andersen, Mikael; Bolund, Stig; Andersen, Helene Søgaard

2018-01-01

Differing results regarding articulation skills in young children with cleft palate (CP) have been reported and often interpreted as a consequence of different surgical protocols. To assess the influence of different timing of hard palate closure in a two-stage procedure on articulation skills in 3-year-olds born with unilateral cleft lip and palate (UCLP). Secondary aims were to compare results with peers without CP, and to investigate if there are gender differences in articulation skills. Furthermore, burden of treatment was to be estimated in terms of secondary surgery, hearing and speech therapy. A randomized controlled trial (RCT). Early hard palate closure (EHPC) at 12 months versus late hard palate closure (LHPC) at 36 months in a two-stage procedure was tested in a cohort of 126 Danish-speaking children born with non-syndromic UCLP. All participants had the lip and soft palate closed around 4 months of age. Audio and video recordings of a naming test were available from 113 children (32 girls and 81 boys) and were transcribed phonetically. Recordings were obtained prior to hard palate closure in the LHPC group. The main outcome measures were percentage consonants correct adjusted (PCC-A) and consonant errors from blinded assessments. Results from 36 Danish-speaking children without CP obtained previously by Willadsen in 2012 were used for comparison. Children with EHPC produced significantly more target consonants correctly (83%) than children with LHPC (48%; p < .001). In addition, children with LHPC produced significantly more active cleft speech characteristics than children with EHPC (p < .001). Boys achieved significantly lower PCC-A scores than girls (p = .04) and produced significantly more consonant errors than girls (p = .02). No significant differences were found between groups regarding burden of treatment. The control group performed significantly better than the EHPC and LHPC groups on all compared variables. © 2017 Royal College of Speech

Design and fabrication of an articulated four axes microrobot arm

Science.gov (United States)

Zhang, Ruoshi; Yang, Zhong; Wei, Danming; Popa, Dan O.

2017-05-01

In order to carry out nanomanufacturing tasks, a microrobot requires both high precision and high reliability over prolonged periods of time. Articulated Four-Axis Microrobots (AFAM) have been introduced a decade ago as millimetric microrobots capable of carrying out nanoscale tasks. The original robot design relied on a Micro Electro Mechanical (MEMS) actuator bank positioned onto a Silicon substrate, and an assembled arm mechanically coupled to the actuators through a cable. Movement of two thermal actuator banks positions the AFAM's end effector in 3-Dimensional space with approximately 75 microns workspace and 50 nm repeatability. However, failure of the AFAM's cable mechanism was observed after less than 1 million cycles. In this paper, we propose a novel arm mechanism for AFAM that improve its performance. The design presented in this article substitutes the "wire-gluing" cable with an anchored electrostatic actuator, and therefore it simplifies assembly requirements, reduces overall footprint of the microrobot, and achieves higher operating frequency. Simulation results are presented for a rotary electrostatic comb drive as basis for the microrobot arm with overall dimensions of 2 mm × 2 mm. The AFAM arm cantilever is 1 mm long to achieve a workspace of dimension of 75 microns along the vertical axis. Experimental evaluation of the design was accomplished using a prototype fabricated on a silicon on insulator (SOI) wafer processed with the deep reactive ion etching (DRIE) process.

Nursing. A Basic Course Outline for Health Careers I (Grade 11). A Four Year "2+2" Articulated Curriculum for the Occupation of Nursing.

Science.gov (United States)

Robertson, Barbara; Stevenson, Nancy

This course outline provides materials for the first course in a series of four courses that are included in a "2+2" curriculum for the occupation of registered nurse. It is part of a planned and articulated 4-year curriculum that spans the junior and senior years of high school and the freshman and sophomore years of the postsecondary…

Nursing. A Basic Course Outline for Health Careers II (Grade 12). A Four Year "2+2" Articulated Curriculum for the Occupation of Nursing.

Science.gov (United States)

Stevenson, Nancy; Robertson, Barbara

This course outline provides materials for the second course in a series of four courses that are included in a "2+2" curriculum for the occupation of registered nurse. It is part of a planned and articulated 4-year curriculum that spans the junior and senior years of high school and the freshman and sophomore years of the postsecondary…

Dual-task study of cognitive and postural interference: a preliminary investigation of the automatization deficit hypothesis of developmental co-ordination disorder.

Science.gov (United States)

Tsai, C-L; Pan, C-Y; Cherng, R-J; Wu, S-K

2009-07-01

The purpose of this study was to investigate whether children with developmental co-ordination disorder and balance problem (DCD-BP) had greater problems than controls in performing a primary balance task while concurrently completing different cognitive tasks varying in oral or listening cognitive complexity, as well as to investigate the automatization deficit hypothesis of DCD-BP. Children with DCD-BP (n= 39), along with age-matched control counterparts (n= 39), were placed on automatic processing situation under dual-task conditions. All children were required to perform a primary task, five dual-task paradigms (oral counting task, auditory-verbal reaction task, auditory-choice reaction task, auditory-memory task and articulation alone) and an eyes-closed balancing task. In the primary task condition, the differences were not statistically significant (P= 0.393) between children with and without DCD-BP. However, children with DCD-BP were significantly more impaired on three of five dual-task conditions (oral counting task: P= 0.003; auditory-verbal reaction task: P= 0.011; auditory-memory task: P= 0.041) compared with the single-task situation, with the exception of the auditory-choice reaction task (P= 0.471) and articulation alone (P= 0.067). These results suggest that children with DCD-BP were more cognitively dependant and may have an automatization deficit.

Reframing Children’s Learning: Capturing the Practice of Articulation Done by Truku Children in a Visual Narrative Program

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Huei-Hsuan Lin

2015-06-01

Full Text Available Grounded in a three-semester visual program in which a college team collaborated with Truku elementary students using photographs to explore their lives, this paper focuses on the ways that indigenous students constructed their learning experiences. The present study uses the concept of articulation to describe the process through which children connected their lives with their families and communities with the visual project taking place at school: As this visual project was aimed to infiltrate into the fabrics of children’s everyday lives, those who succeeded to negotiate with their guardians to gain full control over their after-school lives were able to incorporate the activities of photo-taking into their free time and engage in friendship-making activities. Additionally, students were raised to be involved in farming activities in which they learned by participating physically rather than listening to verbal explanations. Thus, this way of learning had been inscribed onto their bodies, moving between and sutured the worlds of school learning and community’s manual laboring. Lastly, this study found that students exuberated “groupness” as they negotiated their way with each other establishing their positions in the web of peer relations. Groupness embodied an articulated quality indicating the way that students were related to each other at school was inseparable from their relations after school. Educators need to be attuned to the dynamics of the groupness as it has been somewhat stable, yet open to change, and certainly impacted how students performed in various learning spaces, such as in the case of the visual program.

Rehabilitating a Fossilized Pronunciation Error: the /v/ and /w/, Contrast by Using the Audio-Articulation Method in Teacher Training in Turkey

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Prof. Dr. Mehmet Demirezen

2005-10-01

Full Text Available The aim of this article is to demonstrate the applicability of a pronunciation teachingand correction case entitled the audio-articulation method, developed by Demirezen (2003,2004, in the field of teacher training in which there is a scarcity of such methods. The audio-articulation method is a fossilized pronunciation mistake breaker, moving raising awareness of a fossilized mistake to perception via listening to oral practice. This method integratespronunciation practicing into oral communication in the context of speaking by means ofchain drills, substitution drills, repetition drills, inflection drills, replacement drills,restatement drills, completion drills, transposition drills, expansion drills, contraction drills,transformation drills, integration drills, rejoinder drills, restoration drills, question-answer drills, and language games are of great help in this respect. In addition, listen and imitatetechnique with mirroring, tracking, and echoing (shadowing, developmental approximationdrills, and explanation techniques are all practiced, repeated in form of exhortations withoutboring the students. The applications of this method and related exercises, practically appliedto experimental groups during a term of 14 weeks by Murat Hişmanoğlu (2004 in a doctoraldissertation, and it has been demonstrated that its has significant rehabilitating potentiality incorrecting the pronunciation errors of non-native speaking English language teachers andstudent teachers in Turkey.

Articulations on form properties and action-function couplings of maker technologies in children’s education

DEFF Research Database (Denmark)

Christensen, Kasper Skov; Iversen, Ole Sejer

2016-01-01

In this paper, we present a framework to expand the design language used to articulate form properties and types of feedback that happen between children’s actions and the intended functionality of maker technologies. Based on field observations in Danish schools we analyze children’s (aged 11......-14 years old) interactions with three maker technologies used to work through design processes in school maker settings. Our findings are beneficial on three factors for designers, researchers and teachers involved in work within maker contexts. (1) reflections on form properties of maker technologies, (2....... Researchers can use the expanded design language to analyze maker technologies in the context of school maker settings. Finally, teachers can make better decisions on how and when to use different maker technologies when school children work through design processes....

Articulação compensatória associada à fissura de palato ou disfunção velofaríngea: revisão de literatura Compensatory articulation associated to cleft palate or velopharyngeal dysfunction: literature review

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Viviane Cristina de Castro Marino

2012-06-01

Full Text Available TEMA: articulação compensatória na fissura palatina. OBJETIVO: contribuir para o aprofundamento de informações sobre os tipos de articulação compensatória descritos na literatura e, ainda, discutir as implicações e contribuições da avaliação clínica e instrumental na identificação destas produções. CONCLUSÃO: as articulações compensatórias merecem a atenção de clínicos e pesquisadores que atuam no Brasil, já que estas alterações são encontradas com grande freqüência em crianças e adultos com fissura palatina ou disfunção velofaríngea, o que compromete a qualidade de vida destes sujeitos. Os fonoaudiólogos devem aprofundar seus conhecimentos sobre os tipos de articulação compensatória e os procedimentos de avaliação, bem como devem estabelecer programas preventivos que favoreçam a aquisição fonológica sem o desenvolvimento dessas compensações.BACKGROUND: compensatory articulation in cleft lip and palate. PURPOSE: to contribute with information regarding the types of compensatory articulation described in the literature and discuss the implications and contributions of clinical and instrumental evaluation of these speech productions. CONCLUSION: compensatory articulation deserves attention from Brazilian physicians and researchers, since that these productions occur in children and adults with cleft palate and velopharyngeal dysfunction, compromising their speech intelligibility and consequently quality of their lives. Speech-language pathologists need to improve knowledge regarding different types of compensatory articulation and also on the procedures for evaluating these productions, in order to settle preventive programs that favor phonological acquisition in children with cleft palate without developing compensatory articulation.

The national education plan as articulator of the democratization of access to university and empowerment of the working class

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Hildegard Susana Jung

2016-09-01

Full Text Available The purpose of this essay, theoretical and documental, is to reflect on the concept(s of empowerment of the working class, in which it invests itself in power, but with an important caveat: this process cannot be individual but collective, through the cooperative dialogue, in which education – especially higher education – is the great protagonist, as articulator of the process. On this track, shows a comparison between the National Education Plan (PNE 2001-2010 and the PNE 2014-2024 regarding the goals aimed to the democratization of the access to university, finding that, in this moment, what can be affirmed in fact is that there were not many advances in Higher Education. Still, the PNE is an important legal instrument for the democratization of access to university, which may serve as an articulator of the empowerment of the working class. Rethinking education means rethinking the entire State, since education policy suffers injunctions of political, economic and social spheres. Enhancing the Brazilian State, means moving towards a broader concept, which will translate a correlation of forces between civil society and politics, which means a greater social participation, increased democratization of access to university and consequently, greater empowerment of the working class through (why not? Higher Education. Therefore, it lies the important role of the academy to prepare educators who disseminate the reflexive practice, which will lead to autonomy and emancipation.

Two-stage revision of septic knee prosthesis with articulating knee spacers yields better infection eradication rate than one-stage or two-stage revision with static spacers.

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Romanò, C L; Gala, L; Logoluso, N; Romanò, D; Drago, L

2012-12-01

The best method for treating chronic periprosthetic knee infection remains controversial. Randomized, comparative studies on treatment modalities are lacking. This systematic review of the literature compares the infection eradication rate after two-stage versus one-stage revision and static versus articulating spacers in two-stage procedures. We reviewed full-text papers and those with an abstract in English published from 1966 through 2011 that reported the success rate of infection eradication after one-stage or two-stage revision with two different types of spacers. In all, 6 original articles reporting the results after one-stage knee exchange arthoplasty (n = 204) and 38 papers reporting on two-stage revision (n = 1,421) were reviewed. The average success rate in the eradication of infection was 89.8% after a two-stage revision and 81.9% after a one-stage procedure at a mean follow-up of 44.7 and 40.7 months, respectively. The average infection eradication rate after a two-stage procedure was slightly, although significantly, higher when an articulating spacer rather than a static spacer was used (91.2 versus 87%). The methodological limitations of this study and the heterogeneous material in the studies reviewed notwithstanding, this systematic review shows that, on average, a two-stage procedure is associated with a higher rate of eradication of infection than one-stage revision for septic knee prosthesis and that articulating spacers are associated with a lower recurrence of infection than static spacers at a comparable mean duration of follow-up. IV.

Computer vision system R&D for EAST Articulated Maintenance Arm robot

Energy Technology Data Exchange (ETDEWEB)

Lin, Linglong, E-mail: linglonglin@ipp.ac.cn; Song, Yuntao, E-mail: songyt@ipp.ac.cn; Yang, Yang, E-mail: yangy@ipp.ac.cn; Feng, Hansheng, E-mail: hsfeng@ipp.ac.cn; Cheng, Yong, E-mail: chengyong@ipp.ac.cn; Pan, Hongtao, E-mail: panht@ipp.ac.cn

2015-11-15

Highlights: • We discussed the image preprocessing, object detection and pose estimation algorithms under poor light condition of inner vessel of EAST tokamak. • The main pipeline, including contours detection, contours filter, MER extracted, object location and pose estimation, was carried out in detail. • The technical issues encountered during the research were discussed. - Abstract: Experimental Advanced Superconducting Tokamak (EAST) is the first full superconducting tokamak device which was constructed at Institute of Plasma Physics Chinese Academy of Sciences (ASIPP). The EAST Articulated Maintenance Arm (EAMA) robot provides the means of the in-vessel maintenance such as inspection and picking up the fragments of first wall. This paper presents a method to identify and locate the fragments semi-automatically by using the computer vision. The use of computer vision in identification and location faces some difficult challenges such as shadows, poor contrast, low illumination level, less texture and so on. The method developed in this paper enables credible identification of objects with shadows through invariant image and edge detection. The proposed algorithms are validated through our ASIPP robotics and computer vision platform (ARVP). The results show that the method can provide a 3D pose with reference to robot base so that objects with different shapes and size can be picked up successfully.

Risk-associated health disorders occuring in junior schoolchildren who attend schools with higher stress and intensity of educational process

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N.V. Zaitseva

2017-03-01

Full Text Available We performed comparative sanitary-hygienic assessment of regime, stress and intensity of educational process in different educational establishments, a comprehensive secondary school and an innovative educational establishment - lyceum. We detected that studying regime tended to be tight, classes were longer and more intense than in an ordinary school, and educational process involved considerable intellectual, sensory and emotional loads for children; such loads reached "1st category intense" level. Schoolchildren attending lyceums are also busy with additional educational programs and it significantly increases length of total educational load on them. By the end of a school year 20% of lyceum pupils suffer from sympathoadrenal system overstress and it doesn't only determine emotional tonus level in children but also leads to disorders in concentration and decision-making speed, lower reading speed and articulation, slower motor reactions. 15% of lyceum pupils have higher activity of autonomous nervous system and lower adaptation of cardiovascular system to psycho emotional and physical loads. Lyceum pupils also run 2.5 times higher risk of chronic nervous system diseases evolvement than school children attending ordinary schools. Autonomous nervous system disorders, posture disorders and nutrition disorders are predominant nosologic pathology forms in lyceum pupils as they occur in them 1.6-2.9 times more frequent than in schoolchildren of the same age who attend an ordinary comprehensive school. We detected direct correlation between higher intellectual and emotional components of educational process, and total educational intensity as well, and frequency of autonomous system disorders and musculoskeletal system diseases in pupils.

Sometimes it does hurt to ask: the constructive role of articulating impressions.

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White, Lee C; Pothos, Emmanuel M; Busemeyer, Jerome R

2014-10-01

Decisions can sometimes have a constructive role, so that the act of, for example, choosing one option over another creates a preference for that option (e.g., Ariely & Norton, 2008; Payne, Bettman, & Johnson, 1993; Sharot, Velasquez, & Dolan, 2010; Sherman, 1980). In this work we explore the constructive role of just articulating an impression, for a presented visual stimulus, as opposed to making a choice (specifically, the judgments we employ are affective evaluations). Using quantum probability theory, we outline a cognitive model formalizing such a constructive process. We predict a simple interaction, in relation to how a second image is evaluated, following the presentation of a first image, depending on whether there is a rating for the first image or not. The interaction predicted by the quantum model was confirmed across three experiments and a variety of control manipulations. The advantages of using quantum probability theory to model the present results, compared with existing models of sequence order effects in judgment (e.g., Hogarth & Einhorn, 1992) or other theories of constructive processes when a choice is made (e.g., Festinger, 1957; Sharot et al., 2010) are discussed. Copyright © 2014 Elsevier B.V. All rights reserved.

Limits and articulations between modalities and meditative as markers of utterance responsibility in academic text

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Jorge Luis Queiroz Carvalho

2014-07-01

Full Text Available In this work we aim to identify and describe the markers of utterance responsibility in academic texts through modality and mediative. The theoretical and methodological approach we follow is based on textual analysis of discourses postulates according to Adam (2011. Our theoretical background is also based on Rabatel (2009 studies on the utterance responsibility; Campos (2004 and Castilho & Castilho (2002 on the category of modalities, Guentchèva (1994 regarding the meditative category, and Neves (2012, which promotes a discussion that articulates both categories. The analysis showed that speakers-utterers (S1/U1 base their points of view on the second utterer's points of view (U2. We also observed that S1/U1 expressed different degrees of engagement in relation to the information reported, assuming or imputing the utterance responsibility

Electromyography of the buccal musculature of octopus (Octopus bimaculoides): a test of the function of the muscle articulation in support and movement.

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Uyeno, Theodore A; Kier, William M

2007-01-01

The buccal mass musculature of the octopus (Octopus bimaculoides) was studied with electromyography to test the predictions of a previous morphological study in which we suggested that the muscles of the buccal mass serve as both the effectors of movement and as the joint itself, forming a new category of flexible joint termed a ;muscle articulation'. The predictions of muscle function were tested by correlating muscle electrical activity in isolated buccal masses with spontaneous beak movements. Bipolar electromyography electrodes were implanted in the various beak muscles and beak position was recorded simultaneously with an electronic movement monitor (N=14). The results are consistent with the hypothesis that the lateral mandibular muscles produce opening movements of the beaks and provide the first definitive explanation of the opening mechanism. The results are also consistent with the hypothesis that the superior mandibular muscle functions primarily in closing. Co-contraction of the lateral mandibular muscles and the superior mandibular muscles was also observed, suggesting that these muscles may also stabilize the beaks during movement or provide a means of controlling the location of the pivot between the beaks. This study provides an important first test of the predictions of the role of the complex musculature found in muscle articulations such as the cephalopod buccal mass.

Design Optimization of Steering Mechanisms for Articulated Off-Road Vehicles Based on Genetic Algorithms

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Chen Zhou

2018-02-01

Full Text Available Two cylinders arranged symmetrically on a frame have become a major form of steering mechanism for articulated off-road vehicles (AORVs. However, the differences of stroke and arm lead to pressure fluctuation, vibration noise, and a waste of torque. In this paper, the differences of stroke and arm are reduced based on a genetic algorithm (GA. First, the mathematical model of the steering mechanism is put forward. Then, the difference of stroke and arm are optimized using a GA. Finally, a FW50GLwheel loader is used as an example to demonstrate the proposed GA-based optimization method, and its effectiveness is verified by means of automatic dynamic analysis of mechanical systems (ADAMS. The stroke difference of the steering hydraulic cylinders was reduced by 92% and the arm difference reached a decrease of 78% through GA optimization, in comparison with unoptimized structures. The simulation result shows that the steering mechanism optimized by GA behaved better than by previous methods.

Registration-based segmentation with articulated model from multipostural magnetic resonance images for hand bone motion animation.

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Chen, Hsin-Chen; Jou, I-Ming; Wang, Chien-Kuo; Su, Fong-Chin; Sun, Yung-Nien

2010-06-01

The quantitative measurements of hand bones, including volume, surface, orientation, and position are essential in investigating hand kinematics. Moreover, within the measurement stage, bone segmentation is the most important step due to its certain influences on measuring accuracy. Since hand bones are small and tubular in shape, magnetic resonance (MR) imaging is prone to artifacts such as nonuniform intensity and fuzzy boundaries. Thus, greater detail is required for improving segmentation accuracy. The authors then propose using a novel registration-based method on an articulated hand model to segment hand bones from multipostural MR images. The proposed method consists of the model construction and registration-based segmentation stages. Given a reference postural image, the first stage requires construction of a drivable reference model characterized by hand bone shapes, intensity patterns, and articulated joint mechanism. By applying the reference model to the second stage, the authors initially design a model-based registration pursuant to intensity distribution similarity, MR bone intensity properties, and constraints of model geometry to align the reference model to target bone regions of the given postural image. The authors then refine the resulting surface to improve the superimposition between the registered reference model and target bone boundaries. For each subject, given a reference postural image, the proposed method can automatically segment all hand bones from all other postural images. Compared to the ground truth from two experts, the resulting surface image had an average margin of error within 1 mm (mm) only. In addition, the proposed method showed good agreement on the overlap of bone segmentations by dice similarity coefficient and also demonstrated better segmentation results than conventional methods. The proposed registration-based segmentation method can successfully overcome drawbacks caused by inherent artifacts in MR images and

Trajectory control of an articulated robot with a parallel drive arm based on splines under tension

Science.gov (United States)

Yi, Seung-Jong

Today's industrial robots controlled by mini/micro computers are basically simple positioning devices. The positioning accuracy depends on the mathematical description of the robot configuration to place the end-effector at the desired position and orientation within the workspace and on following the specified path which requires the trajectory planner. In addition, the consideration of joint velocity, acceleration, and jerk trajectories are essential for trajectory planning of industrial robots to obtain smooth operation. The newly designed 6 DOF articulated robot with a parallel drive arm mechanism which permits the joint actuators to be placed in the same horizontal line to reduce the arm inertia and to increase load capacity and stiffness is selected. First, the forward kinematic and inverse kinematic problems are examined. The forward kinematic equations are successfully derived based on Denavit-Hartenberg notation with independent joint angle constraints. The inverse kinematic problems are solved using the arm-wrist partitioned approach with independent joint angle constraints. Three types of curve fitting methods used in trajectory planning, i.e., certain degree polynomial functions, cubic spline functions, and cubic spline functions under tension, are compared to select the best possible method to satisfy both smooth joint trajectories and positioning accuracy for a robot trajectory planner. Cubic spline functions under tension is the method selected for the new trajectory planner. This method is implemented for a 6 DOF articulated robot with a parallel drive arm mechanism to improve the smoothness of the joint trajectories and the positioning accuracy of the manipulator. Also, this approach is compared with existing trajectory planners, 4-3-4 polynomials and cubic spline functions, via circular arc motion simulations. The new trajectory planner using cubic spline functions under tension is implemented into the microprocessor based robot controller and

Magnetic resonance in temporomandibular articulations

International Nuclear Information System (INIS)

Duarte Filho, D.L.; Ferreira, R.

1994-01-01

Dysfunction of temporomandibular joint (TMJ) is extremely common, mainly in women. The indication of imaging study of TMJ is the evaluation of its internal derangements, since disc dislocation is treated by different way than other intrinsic mechanical conditions and of the painful myofacial dysfunction, as well where there is no anatomic lesion. The patients, who do not improve with the clinical approach, should be referred to imaging evaluation, in order to rule out mechanical disorder. When the patient is supposed to be operated upon, imaging of the contralateral TMJ is necessary. The presence of a thick and stiff disc perforated with adhesion to the mandibular condyle will change the surgical management. The plain x-ray film is able to demonstrate the bone outlines and joint space but it is not able to show the soft articular tissues. Arthrography is very reliable to demonstrate perforation. However it is an invasive method and demands skilled radiographer radiologist. MRI has shown to be reliable method and it is becoming to be progressively used in routine investigation of TMJ. Nevertheless, MRI still has some limitations concerning to disc perforation. (author). 16 refs, 9 figs

Vertical interincisal trespass assessment in children with speech disorders

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Marcelo de Gouveia Sahad

2008-09-01

Full Text Available Through a transversal epidemiological study, conducted with 333 Brazilian children, males (157 and females (176, aged 3 to 6 years old, enrolled in a public preschool, this study aimed to evaluate the prevalence of the different types of vertical interincisal trespass (VIT and the relationship between these occlusal aspects and anterior lisping and/or anterior tongue thrust in the articulation of the lingua-alveolar phonemes /t/, /d/, /n/ and /l/. All children involved were submitted to a VIT examination and to a speech evaluation. Statistical significance was analyzed through the Qui-square test, at a significance level of 0.05 (95% confidence limit. The quantitative analysis of the data demonstrated the following prevalences: 1 - the different types of VIT: 48.3% for normal overbite (NO, 22.5% for deep overbite (DO, 9.3% for edge to edge (ETE and 19.8% for open bite (OB; 2 - interdental lisping in relation to the different types of VIT: 42% for NO, 12.5% for DO, 12.5% for ETE, 32.9% for OB; and 3 - children with anterior tongue thrust in the articulation of lingua-alveolar phonemes in relation to the different types of VIT: 42.1% for NO, 14% for DO, 10.5% for ETE, 33.3% for OB. The results demonstrated that there was a significant relationship between open bite and anterior lisping and/or anterior tongue thrust in the articulation of the lingua-alveolar phonemes /t/, /d/, /n/ and /l/; and that there was a significant relationship between deep overbite and the absence of anterior lisping and anterior tongue thrust in the articulation of the lingua-alveolar phonemes.

41°18’50”N 72°56’4”W: Searching for the threshold of articulability

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Tavi Meraud

2015-12-01

Full Text Available This piece is an exercise I consider a failure, but, as such, a meaningful artifact. On the one hand, I have been becoming increasingly frustrated by writing; on the other, I have been trying to resolve a piece whose first iteration took form in late July this year. There were a few different key components, including a sculptural/architectural structure, reminiscent of a temporary shelter, intended for one body; and the core of this work was a performance, which took place without much preemptive announcement and similarly remained not excessively documented. I was interested in the seemingly ephemeral formal nature of the work and yet the potential, due to its content, to be quite the opposite and to linger and even fester. The performance component of this piece was my setting a timer and speaking without any preparation at all for 1 hour 20 minutes about trauma. The specific topic isn’t so important, although I enjoy something like the lyricism that the ostensible content densifies the ideas of articulation, especially spontaneous articulation and all the otherwise hidden tics and convulsions that become manifest in extemporaneity. I am still processing that experience and still very much in the midst of trying to resolve this piece. One of the important components of this aforementioned piece is its unrepeatability; this seems to best fit the formal logic that the work suggests for itself. A hurdle, then, in pursuing further investigation. Hence the idea to try a variation of it in which I improvise sensory deprivation as well as disorientation and talk, again without preparation, this time about the space of a studio and trying to transfer that space in some way to another place. To furthermore remove the locus or formal/physical center of the work, there was no separate architecture and instead the whole of my studio became the “temporary shelter” and the voice became material in lieu of wood, plastic, metal etc. And the tangibility

Informal work and formal plans: articulating the active role of patients in cancer trajectories

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Rikke Juul Dalsted

2012-12-01

Full Text Available Introduction: Formal pathways models outline that patients should receive information in order to experience a coherent journey but do not describe an active role for patients or their relatives. The aim of this is paper is to articulate and discuss the active role of patients during their cancer trajectories.  Methods and theory: An in-depth case study of patient trajectories at a Danish hospital and surrounding municipality using individual interviews with patients. Theory about trajectory and work by Strauss was included.  Results: Patients continuously took initiatives to organize their treatment and care. They initiated processes in the trajectories, and acquired information, which they used to form their trajectories.  Patients presented problems to the healthcare professionals in order to get proper help when needed.  Discussion: Work done by patients was invisible and not perceived as work. The patients' requests were not sufficiently supported in the professional organisation of work or formal planning. Patients' insertion and use of information in their trajectories challenged professional views and working processes. And the design of the formal pathway models limits the patients´ active participation. When looking at integrated care from the perspective of patients, the development of a more holistic and personalized approach is needed. Introduction: Formal pathway models outline that patients should receive information in order to experience a coherent journey but do not describe an active role for patients or their relatives. The aim of this is paper is to articulate and discuss the active role of patients during their cancer trajectories. Methods and theory: An in-depth case study of patient trajectories at a Danish hospital and surrounding municipality using individual interviews with patients. Theory about trajectory and work by Strauss was included. Results: Patients continuously took initiatives to organize their

Assessment of auditory processing in children with dyslalia

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Wlodarczyk £.

2011-09-01

Full Text Available The objective of the work was to assess occurrence of central auditory processing disorders in children with dyslalia. Material and method. The material included 30 children at the age 798 years old being under long-term speech therapy care due to articulation disorders. All the children were subjected to the phoniatric and speech examination, including tonal and impedance audiometry, speech therapist's consultation and psychologist's consultation. Electrophysi-ological (N2, P2, N2, P2, P300 record and following psychoacoustic test of central auditory functions were performed (Frequency Pattern Test. Results. Analysis of the results revealed disorders in the process of sound analysis within frequency and P300 wave latency prolongation in children with dyslalia. Conclusions. Auditory processing disorders may be significant in development of correct articulation in children, they also may explain unsatisfactory results of long-term speech therapy

Ertapenem Articulating Spacer for the Treatment of Polymicrobial Total Knee Arthroplasty Infection

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Dragan Radoicic

2016-01-01

Full Text Available Introduction. Periprosthetic joint infections (PJIs are the primary cause of early failure of the total knee arthroplasty (TKA. Polymicrobial TKA infections are often associated with a higher risk of treatment failure. The aim of the study was to assess the efficacy of ertapenem loaded spacers in the treatment of polymicrobial PJI. Methods. There were 18 patients enrolled; nine patients with polymicrobial PJI treated with ertapenem loaded articulating spacers were compared to the group of 9 patients treated with vancomycin or ceftazidime loaded spacers. Results. Successful reimplantation with revision implants was possible in 66.67%. Ertapenem spacers were used in 6 cases in primary two-stage procedure and in 3 cases in secondary spacer exchange. Successful infection eradication was achieved in all cases; final reimplantation with revision knee arthroplasty implants was possible in 6 cases. Conclusion. Ertapenem can be successfully used as antimicrobial addition to the cement spacers in two-stage revision treatment of polymicrobial PJIs. However, this type of spacer may also be useful in the treatment of infections caused by monomicrobial extended spectrum beta-lactamases producing gram-negative bacilli. Further clinical studies are required to evaluate the efficacy and safety of ertapenem spacers in the treatment of polymicrobial and monomicrobial PJIs.

Methodology for the assessment of measuring uncertainties of articulated arm coordinate measuring machines

International Nuclear Information System (INIS)

Romdhani, Fekria; Hennebelle, François; Ge, Min; Juillion, Patrick; Fontaine, Jean François; Coquet, Richard

2014-01-01

Articulated Arm Coordinate Measuring Machines (AACMMs) have gradually evolved and are increasingly used in mechanical industry. At present, measurement uncertainties relating to the use of these devices are not yet well quantified. The work carried out consists of determining the measurement uncertainties of a mechanical part by an AACMM. The studies aiming to develop a model of measurement uncertainty are based on the Monte Carlo method developed in Supplement 1 of the Guide to Expression of Uncertainty in Measurement [1] but also identifying and characterizing the main sources of uncertainty. A multi-level Monte Carlo approach principle has been developed which allows for characterizing the possible evolution of the AACMM during the measurement and quantifying in a second level the uncertainty on the considered measurand. The first Monte Carlo level is the most complex and is thus divided into three sub-levels, namely characterization on the positioning error of a point, estimation of calibration errors and evaluation of fluctuations of the ‘localization point’. The global method is thus presented and results of the first sub-level are particularly developed. The main sources of uncertainty, including AACMM deformations, are exposed. (paper)

The Nature and Articulation of Ethical Codes on Tailings Management in South Africa

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Tobius Thobile Poswa

2017-10-01

Full Text Available It is well recognized that the mining industry in South Africa is highly rated for its substantial contribution to the country’s economic growth, including employment and infrastructural development. It is also known that mining and ore processing activities potentially pose a severe threat to public health and environmental well-being, in the way operations are carried out, mine wastes are disposed of (in dumps, local communities are relocated, mine management and the mining community, in general, perceive established environmental standards and etiquette. This paper examines ethical practices and norms in the South African mining industry, with particular reference to the management of tailings dams. We analyse the modes of articulation of the country’s regulatory instruments for tailings management, and review the corporate social responsibility (CSR approach of leading mining companies. Despite decades of research and resulting recommendations on tailings management, it is concluded that the current legislations are largely ineffective, that the level of adherence by mine management and the mining community is low, and that the mechanisms for compliance monitoring is weak. New perspectives on legislative issues for unsolved problems in tailings handling are put forward, and directions for future research, indicated.

The "pseudo-craniovertebral articulation" in the deep-sea fish Stomias boa (Teleostei: Stomiidae).

Science.gov (United States)

Schnell, Nalani K; Bernstein, Peter; Maier, Wolfgang

2008-05-01

Many predatory deep-sea fishes show highly specialized modifications of their feeding apparatus, e.g., elongate jaws studded with long daggerlike teeth, often combined with a very distensible stomach, to be capable of swallowing relatively large prey. These striking features can be observed in members of the marine teleost family Stomiidae. The present study gives a detailed morphological description of the mesopelagic predatory fish, Stomias boa, based on a combined approach of clearing and double staining, serial sections and dissection. In this genus, large pads made of dense connective tissue extend from the first enlarged neural arch to the ventral side of the chordal sheath, embracing the prominent exoccipitals and thus constituting a kind of double ball- and socket joint for the head. The notochordal occipito-vertebral gap is enlarged, probably not by loss of vertebral centra as is proposed for other genera of the stomiid family, e.g., in Astronesthes or Photostomias. We conclude that this "pseudo-craniovertebral articulation" serves as a functional substitute for the absent vertebrae and strengthens the flexible, anterior part of the vertebral column during extreme dorsal expansion of the gape during prey capture and swallowing. (c) 2007 Wiley-Liss, Inc.

Responses to warnings about the impact of eating disorders on fertility: A qualitative study.

Science.gov (United States)

Holmes, Su

2018-02-21

Eating disorders (EDs) have often been discussed as a risk to reproductive health. But existing research is quantitative in nature, paying no attention to issues of patient experience. In discussing data from 24 semi-structured interviews, this article draws on sociological approaches to medical 'risk' and feminist approaches to EDs to explore how women with experience of an ED responded to fertility warnings within treatment contexts. In doing so, it is suggested that responses to fertility warnings offer unique insight into the potentially damaging limitations of biomedical approaches to eating problems and their focus on EDs as individual 'pathologies' (rather than culturally embedded expressions of gendered embodiment). At best warnings are seen as making problematic assumptions about the aspirations of female patients, which may curtail feelings of agency and choice. At worst, they may push women further into destructive bodily and eating practices, and silence the distress that may be articulated by an ED. © 2018 Foundation for the Sociology of Health & Illness.

Articulating the strategies for maximising the inclusion of people with dementia in qualitative research studies.

Science.gov (United States)

Murphy, Kathy; Jordan, Fionnuala; Hunter, Andrew; Cooney, Adeline; Casey, Dympna

2015-11-01

It is essential to understand the experience of living with dementia from the perspective of the person with dementia so that services can be appropriately constructed. This review paper, drawing on prior work, identifies key strategies for the meaningful inclusion of persons with dementia within qualitative research studies, it examines the articulation of these strategies and shares how these strategies were operationalised within one national research study in Ireland. Strategies within the literature were categorised and then synthesized into a guide consisting of four main areas; gaining COnsent, maximizing Responses, Telling the story, and Ending on a high (CORTE). The CORTE guideline was used to as a tool for analysing relevant research reports. CORTE is a synthesized account of grouped strategies that could be used to maximize the meaningful involvement of persons with dementia and can also provide a guide for reporting the strategies used so that researchers can learn from each other. © The Author(s) 2014.

What's in and what's out in branding? A novel articulation effect for brand names.

Science.gov (United States)

Topolinski, Sascha; Zürn, Michael; Schneider, Iris K

2015-01-01

The present approach exploits the biomechanical connection between articulation and ingestion-related mouth movements to introduce a novel psychological principle of brand name design. We constructed brand names for diverse products with consonantal stricture spots either from the front to the rear of the mouth, thus inwards (e.g., BODIKA), or from the rear to the front, thus outwards (e.g., KODIBA). These muscle dynamics resemble the oral kinematics during either ingestion (inwards), which feels positive, or expectoration (outwards), which feels negative. In 7 experiments (total N = 1261), participants liked products with inward names more than products with outward names (Experiment 1), reported higher purchase intentions (Experiment 2), and higher willingness-to-pay (Experiments 3a-3c, 4, 5), with the price gain amounting to 4-13% of the average estimated product value. These effects occurred across English and German language, under silent reading, for both edible and non-edible products, and even in the presence of a much stronger price determinant, namely fair-trade production (Experiment 5).

What's in and what's out in branding? A novel articulation effect for brand names

Science.gov (United States)

Topolinski, Sascha; Zürn, Michael; Schneider, Iris K.

2015-01-01

The present approach exploits the biomechanical connection between articulation and ingestion-related mouth movements to introduce a novel psychological principle of brand name design. We constructed brand names for diverse products with consonantal stricture spots either from the front to the rear of the mouth, thus inwards (e.g., BODIKA), or from the rear to the front, thus outwards (e.g., KODIBA). These muscle dynamics resemble the oral kinematics during either ingestion (inwards), which feels positive, or expectoration (outwards), which feels negative. In 7 experiments (total N = 1261), participants liked products with inward names more than products with outward names (Experiment 1), reported higher purchase intentions (Experiment 2), and higher willingness-to-pay (Experiments 3a–3c, 4, 5), with the price gain amounting to 4–13% of the average estimated product value. These effects occurred across English and German language, under silent reading, for both edible and non-edible products, and even in the presence of a much stronger price determinant, namely fair-trade production (Experiment 5). PMID:26029136

Borderline personality disorder and the emerging field of developmental neuroscience.

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Crowell, Sheila E; Kaufman, Erin A

2016-10-01

Over the past 2 decades there has been a dramatic shift in understanding of personality disorders, such as borderline personality disorder (BPD). What was historically viewed as an entrenched pattern of antagonistic, interpersonally dependent, and uncorrectable conduct is now seen as the outcome of complex-yet modifiable-developmental processes. The borderline label, which once inspired such harsh opprobrium in clinical communities that early diagnosis was considered taboo, is now increasingly applied to adolescents who are receiving effective treatment and desisting from a borderline trajectory. Research examining the developmental origins and early manifestations of BPD is increasing rapidly, making it an appropriate time to take stock of current developmental research and articulate an agenda for the future. We identify 4 challenges that continue to impede innovative research on borderline personality development: (a) inadequate attention to continuity and discontinuity across development, (b) medical and diagnostic systems that localize personality pathology within the individual, (c) the lingering belief that biological research is antithetical to contextual/interpersonal understandings of psychopathology (and vice versa), and (d) reluctance to reach across disciplinary and developmental boundaries to identify creative paradigms and foster innovative discovery. In order to overcome these challenges, we propose an approach to future research on adolescent borderline pathology that integrates developmental psychopathology, social and affective neuroscience, and personality theory perspectives. This intersection-the developmental neuroscience of personality pathology-offers theoretical and methodological advantages over disciplinary isolation and is fertile ground for generating novel hypotheses on the development and prevention of BPD. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

Combination therapy with intra-articular injection of mesenchymal stem cells and articulated joint distraction for repair of a chronic osteochondral defect in the rabbit.

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Harada, Yohei; Nakasa, Tomoyuki; Mahmoud, Elhussein Elbadry; Kamei, Goki; Adachi, Nobuo; Deie, Masataka; Ochi, Mitsuo

2015-10-01

The present study investigated intra-articular injection of bone-marrow-derived mesenchymal stem cells (MSCs) combined with articulated joint distraction as treatment for osteochondral defects. Large osteochondral defects were created in the weight-bearing area of the medial femoral condyle in rabbit knees. Four weeks after defect creation, rabbits were divided into six groups: control group, MSC group, distraction group, distraction + MSC group, temporary distraction group, and temporary distraction + MSC group. Groups with MSC received intra-articular injection of MSCs. Groups with distraction underwent articulated distraction arthroplasty. Groups with temporary distraction discontinued the distraction after 4 weeks. The rabbits were euthanized at 4, 8, and 12 weeks after treatment except temporary distraction groups which were euthanized at only 12 weeks. Histological scores in the distraction + MSC group were significantly better than in the control, MSC group or distraction group at 4 and 8 weeks, but showed no further improvement. At 12 weeks, the temporary distraction + MSC group showed the best results, demonstrating hyaline cartilage repair with regeneration of the osteochondral junction. In conclusion, joint distraction with intra-articular injection of MSCs promotes early cartilage repair, and compressive loading of the repair tissue after temporary distraction stimulates articular cartilage regeneration. © 2015 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.

Preschool speech articulation and nonword repetition abilities may help predict eventual recovery or persistence of stuttering.

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Spencer, Caroline; Weber-Fox, Christine

2014-09-01

In preschool children, we investigated whether expressive and receptive language, phonological, articulatory, and/or verbal working memory proficiencies aid in predicting eventual recovery or persistence of stuttering. Participants included 65 children, including 25 children who do not stutter (CWNS) and 40 who stutter (CWS) recruited at age 3;9-5;8. At initial testing, participants were administered the Test of Auditory Comprehension of Language, 3rd edition (TACL-3), Structured Photographic Expressive Language Test, 3rd edition (SPELT-3), Bankson-Bernthal Test of Phonology-Consonant Inventory subtest (BBTOP-CI), Nonword Repetition Test (NRT; Dollaghan & Campbell, 1998), and Test of Auditory Perceptual Skills-Revised (TAPS-R) auditory number memory and auditory word memory subtests. Stuttering behaviors of CWS were assessed in subsequent years, forming groups whose stuttering eventually persisted (CWS-Per; n=19) or recovered (CWS-Rec; n=21). Proficiency scores in morphosyntactic skills, consonant production, verbal working memory for known words, and phonological working memory and speech production for novel nonwords obtained at the initial testing were analyzed for each group. CWS-Per were less proficient than CWNS and CWS-Rec in measures of consonant production (BBTOP-CI) and repetition of novel phonological sequences (NRT). In contrast, receptive language, expressive language, and verbal working memory abilities did not distinguish CWS-Rec from CWS-Per. Binary logistic regression analysis indicated that preschool BBTOP-CI scores and overall NRT proficiency significantly predicted future recovery status. Results suggest that phonological and speech articulation abilities in the preschool years should be considered with other predictive factors as part of a comprehensive risk assessment for the development of chronic stuttering. At the end of this activity the reader will be able to: (1) describe the current status of nonlinguistic and linguistic predictors for

Boundaries to the articulation of possible selves through social networking sites: the case of Facebook profilers' social connectedness.

Science.gov (United States)

Zwier, Sandra; Araujo, Theo; Boukes, Mark; Willemsen, Lotte

2011-10-01

This study aims to contribute to an emerging literature that seeks to understand how identity markers on social networking sites (SNSs) shape interpersonal impressions, and particularly the boundaries that SNSs present for articulating unconstrained "hoped-for possible selves." An experiment employing mock-up Facebook profiles was conducted, showing that appearing with friends on a Facebook profile picture as well as increasingly higher number of Facebook friends strengthened perceptions of a profiler's hoped-for level of social connectedness. Excessive numbers of friends, however, weakened perceptions of a profiler's real-level social connectedness, particularly among participants with smaller social networks on Facebook themselves. The discussion focuses on when people come to find that reasonable boundaries of self-generated information on an SNS have been exceeded.

A computed torque method based attitude control with optimal force distribution for articulated body mobile robots

International Nuclear Information System (INIS)

Fukushima, Edwardo F.; Hirose, Shigeo

2000-01-01

This paper introduces an attitude control scheme based in optimal force distribution using quadratic programming which minimizes joint energy consumption. This method shares similarities with force distribution for multifingered hands, multiple coordinated manipulators and legged walking robots. In particular, an attitude control scheme was introduced inside the force distribution problem, and successfully implemented for control of the articulated body mobile robot KR-II. This is an actual mobile robot composed of cylindrical segments linked in series by prismatic joints and has a long snake-like appearance. These prismatic joints are force controlled so that each segment's vertical motion can automatically follow the terrain irregularities. An attitude control is necessary because this system acts like a system of wheeled inverted pendulum carts connected in series, being unstable by nature. The validity and effectiveness of the proposed method is verified by computer simulation and experiments with the robot KR-II. (author)

A psycho-behavioral perspective on modelling obsessive-compulsive disorder (OCD) in animals: The role of context

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Wolmarans, De Wet; Stein, Dan J; Harvey, Brian H

2017-05-23

Obsessive-compulsive disorder is a heterogeneous and debilitating condition, characterized by intrusive thoughts and compulsive repetition. Animal models of OCD are important tools that have the potential to contribute significantly to our understanding of the condition. Although there is consensus that pre-clinical models are valuable in elucidating the underlying neurobiology in psychiatric disorders, the current paper attempts to prompt ideas on how interpretation of animal behavior can be expanded upon to more effectively converge with the human disorder. Successful outcomes in psychopharmacology involves rational design and synthesis of novel compounds and their testing in well-designed animal models. As part of a special journal issue on OCD, this paper will 1) review the psycho-behavioral aspects of OCD that are of importance on how the above ideas can be articulated, 2) briefly elaborate on general issues that are important for the development of animal models of OCD, with a particular focus on the role and importance of context, 3) propose why translational progress may often be less than ideal, 4) highlight some of the significant contributions afforded by animal models to advance understanding, and 5) conclude by identifying novel behavioral constructs for future investigations that may contribute to the face, predictive and construct validity of OCD animal models. We base these targets on an integrative approach to face and construct validity, and note that the issue of treatment-resistance in the clinical context should receive attention in current animal models of OCD. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

Long-reach articulated robots for inspection and mini-invasive interventions in hazardous environments: Recent robotics research, qualification testing, and tool developments

International Nuclear Information System (INIS)

Perrot, Yann; Kammerer, Nolwenn; Measson, Yvan; Verney, Alexandre; Gargiulo, Laurent; Houry, Michael; Keller, Delphine; Piolain, Gerard

2012-01-01

The Interactive Robotics Laboratory of CEA LIST is in charge of the development of remote handling technologies to meet energy industry requirements. This paper reports the research and development activities in advanced robotics systems for inspection or light intervention in hazardous environments with limited access such as blind hot cells in the nuclear industry or the thermonuclear experimental Tokamak fusion reactor. A long-reach carrier robot called the articulated inspection arm (AIA) and diagnostics and tools for inspection or intervention are described. Finally experimental field tests are presented and actual challenges in modeling the robot's flexibilities are discussed. (authors)

Current Controversies in Diagnosis and Management of Cleft Palate and Velopharyngeal Insufficiency

Science.gov (United States)

Ysunza, Pablo Antonio; Repetto, Gabriela M.; Pamplona, Maria Carmen; Calderon, Juan F.; Shaheen, Kenneth; Chaiyasate, Konkgrit; Rontal, Matthew

2015-01-01

Background. One of the most controversial topics concerning cleft palate is the diagnosis and treatment of velopharyngeal insufficiency (VPI). Objective. This paper reviews current genetic aspects of cleft palate, imaging diagnosis of VPI, the planning of operations for restoring velopharyngeal function during speech, and strategies for speech pathology treatment of articulation disorders in patients with cleft palate. Materials and Methods. An updated review of the scientific literature concerning genetic aspects of cleft palate was carried out. Current strategies for assessing and treating articulation disorders associated with cleft palate were analyzed. Imaging procedures for assessing velopharyngeal closure during speech were reviewed, including a recent method for performing intraoperative videonasopharyngoscopy. Results. Conclusions from the analysis of genetic aspects of syndromic and nonsyndromic cleft palate and their use in its diagnosis and management are presented. Strategies for classifying and treating articulation disorders in patients with cleft palate are presented. Preliminary results of the use of multiplanar videofluoroscopy as an outpatient procedure and intraoperative endoscopy for the planning of operations which aimed to correct VPI are presented. Conclusion. This paper presents current aspects of the diagnosis and management of patients with cleft palate and VPI including 3 main aspects: genetics and genomics, speech pathology and imaging diagnosis, and surgical management. PMID:26273595

Current Controversies in Diagnosis and Management of Cleft Palate and Velopharyngeal Insufficiency

Directory of Open Access Journals (Sweden)

Pablo Antonio Ysunza

2015-01-01

Full Text Available Background. One of the most controversial topics concerning cleft palate is the diagnosis and treatment of velopharyngeal insufficiency (VPI. Objective. This paper reviews current genetic aspects of cleft palate, imaging diagnosis of VPI, the planning of operations for restoring velopharyngeal function during speech, and strategies for speech pathology treatment of articulation disorders in patients with cleft palate. Materials and Methods. An updated review of the scientific literature concerning genetic aspects of cleft palate was carried out. Current strategies for assessing and treating articulation disorders associated with cleft palate were analyzed. Imaging procedures for assessing velopharyngeal closure during speech were reviewed, including a recent method for performing intraoperative videonasopharyngoscopy. Results. Conclusions from the analysis of genetic aspects of syndromic and nonsyndromic cleft palate and their use in its diagnosis and management are presented. Strategies for classifying and treating articulation disorders in patients with cleft palate are presented. Preliminary results of the use of multiplanar videofluoroscopy as an outpatient procedure and intraoperative endoscopy for the planning of operations which aimed to correct VPI are presented. Conclusion. This paper presents current aspects of the diagnosis and management of patients with cleft palate and VPI including 3 main aspects: genetics and genomics, speech pathology and imaging diagnosis, and surgical management.

Disordered eating practices in gastrointestinal disorders.

Science.gov (United States)

Satherley, R; Howard, R; Higgs, S

2015-01-01

To systematically review evidence concerning disordered eating practices in dietary-controlled gastrointestinal conditions. Three key questions were examined: a) are disordered eating practices a feature of GI disorders?; b) what abnormal eating practices are present in those with GI disorders?; and c) what factors are associated with the presence of disordered eating in those with GI disorders? By exploring these questions, we aim to develop a conceptual model of disordered eating development in GI disease. Five key databases, Web of Science with Conference Proceedings (1900-2014) and MEDLINE (1950-2014), PubMed, PsycINFO (1967-2014) and Google Scholar, were searched for papers relating to disordered eating practices in those with GI disorders. All papers were quality assessed before being included in the review. Nine papers were included in the review. The majority of papers reported that the prevalence of disordered eating behaviours is greater in populations with GI disorders than in populations of healthy controls. Disordered eating patterns in dietary-controlled GI disorders may be associated with both anxiety and GI symptoms. Evidence concerning the correlates of disordered eating was limited. The presence of disordered eating behaviours is greater in populations with GI disorders than in populations of healthy controls, but the direction of the relationship is not clear. Implications for further research are discussed. Copyright © 2014 Elsevier Ltd. All rights reserved.

Applying a Cerebellar Model Articulation Controller Neural Network to a Photovoltaic Power Generation System Fault Diagnosis

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Kuei-Hsiang Chao

2013-01-01

Full Text Available This study employed a cerebellar model articulation controller (CMAC neural network to conduct fault diagnoses on photovoltaic power generation systems. We composed a module array using 9 series and 2 parallel connections of SHARP NT-R5E3E 175 W photovoltaic modules. In addition, we used data that were outputted under various fault conditions as the training samples for the CMAC and used this model to conduct the module array fault diagnosis after completing the training. The results of the training process and simulations indicate that the method proposed in this study requires fewer number of training times compared to other methods. In addition to significantly increasing the accuracy rate of the fault diagnosis, this model features a short training duration because the training process only tunes the weights of the exited memory addresses. Therefore, the fault diagnosis is rapid, and the detection tolerance of the diagnosis system is enhanced.

A Filtering Approach for Image-Guided Surgery With a Highly Articulated Surgical Snake Robot.

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Tully, Stephen; Choset, Howie

2016-02-01

The objective of this paper is to introduce a probabilistic filtering approach to estimate the pose and internal shape of a highly flexible surgical snake robot during minimally invasive surgery. Our approach renders a depiction of the robot that is registered to preoperatively reconstructed organ models to produce a 3-D visualization that can be used for surgical feedback. Our filtering method estimates the robot shape using an extended Kalman filter that fuses magnetic tracker data with kinematic models that define the motion of the robot. Using Lie derivative analysis, we show that this estimation problem is observable, and thus, the shape and configuration of the robot can be successfully recovered with a sufficient number of magnetic tracker measurements. We validate this study with benchtop and in-vivo image-guidance experiments in which the surgical robot was driven along the epicardial surface of a porcine heart. This paper introduces a filtering approach for shape estimation that can be used for image guidance during minimally invasive surgery. The methods being introduced in this paper enable informative image guidance for highly articulated surgical robots, which benefits the advancement of robotic surgery.

Visual Iconicity Across Sign Languages: Large-Scale Automated Video Analysis of Iconic Articulators and Locations

Science.gov (United States)

Östling, Robert; Börstell, Carl; Courtaux, Servane

2018-01-01

We use automatic processing of 120,000 sign videos in 31 different sign languages to show a cross-linguistic pattern for two types of iconic form–meaning relationships in the visual modality. First, we demonstrate that the degree of inherent plurality of concepts, based on individual ratings by non-signers, strongly correlates with the number of hands used in the sign forms encoding the same concepts across sign languages. Second, we show that certain concepts are iconically articulated around specific parts of the body, as predicted by the associational intuitions by non-signers. The implications of our results are both theoretical and methodological. With regard to theoretical implications, we corroborate previous research by demonstrating and quantifying, using a much larger material than previously available, the iconic nature of languages in the visual modality. As for the methodological implications, we show how automatic methods are, in fact, useful for performing large-scale analysis of sign language data, to a high level of accuracy, as indicated by our manual error analysis.

Development of a method for fabricating polypropylene non-articulated dorsiflexion assist ankle foot orthoses with predetermined stiffness.

Science.gov (United States)

Ramsey, Jason Allan

2011-03-01

A non-articulated plantarflexion resist ankle foot orthosis (AFO), commonly known as a posterior leaf spring AFO, is indicated for patients with motor impairment to the dorsiflexors. The AFO is often custom molded to a patient's lower limb anatomy and fabricated from polypropylene. There are no established guidelines for fabricating this type of AFO with predetermined stiffness of the ankle region for normal walking speeds. Therefore an AFO may not meet the biomechanical needs of the patient. Quantify the biomechanical ankle stiffness requirement for an individual with complete dorsiflexor impairment and develop a method for fabricating an AFO with ankle stiffness to meet that requirement. Experimental, bench research. The literature on sagittal biomechanics of non-pathological adults was reviewed to derive the stiffness of the ankle during loading response. Computer models of 144 AFOs were created with geometric variations to account for differences in human anthropometrics. Computer-based finite element analysis was employed to determine the stiffness and safety factor of the models. Stiffness of the AFOs ranged from 0.04 to 1.8 Nm/deg. This ample range is expected to account for the stiffness required for most adults with complete dorsiflexor impairment. At 5° deflection the factor of safety (ratio of strength to stress) ranged from 2.8 to 9.1. A computer program was generated that computes AFO stiffness from user-input variables of AFO geometry. The stiffness is compared to a theoretically appropriate stiffness based on the patient mass. The geometric variables can be modified until there is a close match, resulting in AFO design specification that is appropriate for the patient. Through validation on human subjects, this method may benefit patient outcomes in clinical practice by avoiding the current uncertainty surrounding AFO performance and reducing the labor and time involved in rectifying a custom AFO post-fabrication. This method provides an avenue for

Critical element study on autonomous position control of articulated-arm type manipulator

International Nuclear Information System (INIS)

Oka, Kiyoshi; Kakudate, Satoshi; Nakahira, Masataka

1994-10-01

An articulated-arm type manipulator can be operated effectively in a restricted space due to its flexibility and it can be attractive for a wide range of in-vessel maintenance such as viewing, inspection and limiter handling in fusion experimental reactors. In case of the in-vessel maintenance using a flexible manipulator, it is quite essential to develop an autonomous control method for compensating a deflection of manipulator so as to minimize the maintenance time with high precision. For this purpose, a new position control method using a combination of neural network predictor with a rigid inverse kinematics is being developed. The key features of this method are to simplify a kinematics modeling of flexible manipulator, to enable quick position compensation in stead of ordinary large matrix compensation, and to be applicable to a wide variety of manipulator characteristics. A sub-scaled model of flexible manipulator with 4 joints has been fabricated for a benchmark experiments of the autonomous position control. Comparing analytical simulation with experiments using the flexible manipulator, it has been demonstrated that the new position control method gives significant improvement in control performance with high precision in order of a figure. In addition, further optimization can be possible by adding other non-linear predictors such as radial basis function and fuzzy modeling. This paper describes the details of a sub-scaled flexible manipulator and a neural network position control system as well as results of analytical simulation and benchmark experiments. (author)

The articulation of voices in two film projects about violence: The Act of Killing and Gzim Rewind

Directory of Open Access Journals (Sweden)

Lisbeth Frølunde

2014-06-01

Full Text Available This paper explores two experimental documentary films that present memories of acts of mass violence: The Act of Killing (Denmark, 2012, director Joshua Oppenheimer about the Indonesian anti-Communist purge in the 1960s and Gzim Rewind (Sweden, 2011, director Knutte Wester about the fate of a boy who fled from Kosovo in the 1990s. Using dialogic theory (Bakhtin, 1981; Phillips, 2011, we analyse the voices that are articulated about past violent events in the films. The focus is on how different voices interrelate in the filmic presentation of mass violence, including victims and killers. Primarily, the analysis focuses on The Act of Killing and its reception by an Indonesian audience. The discussion concerns how these kinds of film projects open up very different voices and how this diversity potentially contributes to new understandings of the past, thereby fuelling social and political change.

The articulation of voices in two film projects about violence: The Act of Killing and Gzim Rewind

Directory of Open Access Journals (Sweden)

Lisbeth Frølunde

2014-03-01

Full Text Available This paper explores two experimental documentary films that present memories of acts of mass violence: The Act of Killing (Denmark, 2012, director Joshua Oppenheimer about the Indonesian anti-Communist purge in the 1960s and Gzim Rewind (Sweden, 2011, director Knutte Wester about the fate of a boy who fled from Kosovo in the 1990s. Using dialogic theory (Bakhtin, 1981; Phillips, 2011, we analyse the voices that are articulated about past violent events in the films. The focus is on how different voices interrelate in the filmic presentation of mass violence, including victims and killers. Primarily, the analysis focuses on The Act of Killing and its reception by an Indonesian audience. The discussion concerns how these kinds of film projects open up very different voices and how this diversity potentially contributes to new understandings of the past, thereby fuelling social and political change. 

An articulated rotating brush for office endometrial evaluation of climacteric outpatients.

Science.gov (United States)

Bocanera, A R; Roncoroni, E C; Schlaen, I; Ben, J; Monteverde, R; González García, M; Puche, R C; Tozzini, R

1994-05-01

This paper reports the experience obtained in the last 8 years with an instrument (articulated rotative brush) that allows access to the entire endometrial surface, obtaining material for both histological and cytological study. The latter has the advantage of reducing the number of cases in which insufficient material frustrates endometrial assessment. In addition to the overall experience gained with this instrument, the proportion of agreement with anatomo-pathological diagnosis after hysterectomy in 61 patients was high (96%) and the unweighted kappa statistic (0.862) indicated very good accordance between these techniques. Comparison between the present method and hysteroscopic observations in 84 patients with perimenopausal bleeding revealed a general conformity of 0.65 and an unweighted kappa statistic of 0.368 (fair agreement). In a group of 72 cases with postmenopausal bleeding a general conformity value of 0.92 was obtained, with an unweighted kappa statistic of 0.84 (very good agreement). In 90% of the cases the procedure was well accepted. In 57.3% of the cases, no difficulties were encountered using the brushing technique; in 25.9% slight dilatation was deemed necessary, whereas in 16.8% technical difficulties could not be overcome and general anesthesia was indicated. A total of 769 outpatients were investigated, 75.3% of which had normal endometria, 12.7% benign hyperplasias, 2.6% precursor lesions, 1.7% suspect carcinoma, and 4.2% carcinomas. Insufficient material for diagnosis occurred in 3.5% of cases tested. The combined cytohistological and hysteroscopic assessment of the endometrium provides satisfactory results in the etiological diagnosis of peri and postmenopausal bleeding, and in the follow up of patients undergoing hormonal replacement therapy (HRT).

Self-disorders in schizophrenia-spectrum disorders

DEFF Research Database (Denmark)

Nordgaard, Julie; Nilsson, Lars Siersbæk; Sæbye, Ditte

2017-01-01

Self-disorders have been hypothesized to be an underlying and trait-like core feature of schizophrenia-spectrum disorders and a certain degree of temporal stability of self-disorders would therefore be expected. The aim of the study was to examine the persistence of self-disorders measured...... by the Examination of Anomalous Self Experiences over a time span of 5 years. 48 patients with schizophrenia-spectrum disorders were thoroughly assessed for psychopathology at baseline and 5 years later. Self-disorders were assessed by the Examination of Anomalous Self Experiences. The level of self-disorders...... was same at the two occasions for the full Examination of Anomalous Self Disorders and for four out of the five domains. For one domain, the level of self-disorders increased slightly from baseline to follow-up. The correlations between baseline and follow-up were moderate. 9 out of the 13 most...

Gender Dysphoria and Co-Occurring Autism Spectrum Disorders: Review, Case Examples, and Treatment Considerations.

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Jacobs, Laura A; Rachlin, Katherine; Erickson-Schroth, Laura; Janssen, Aron

2014-12-01

Transgender and gender nonconforming people who fulfill diagnostic criteria for autism spectrum disorders (ASDs) often present to mental health providers with concerns that are distinct from those without ASDs. Gender Dysphoria (GD) and ASDs have been proposed to share etiologic mechanisms and there is evidence that ASDs may be more common in transgender and gender nonconforming people. We explore the impact of ASD characteristics on individual gender identity, expression, and the process of psychotherapy. The authors present two case studies of high-functioning individuals with ASD and GD diagnoses. The limited ability to articulate an inner experience, deficits in Theory of Mind (ToM), along with the intolerance of ambiguity as a manifestation of the cognitive rigidity characteristic of ASDs, may present special difficulties to gender identity formation and consolidation and create challenges in psychotherapy. The authors suggest that ASDs do not preclude gender transition and that individuals with high-functioning ASDs are capable of making informed decisions regarding their medical care and life choices. The authors also consider possible challenges and suggest techniques for assisting such clients in exploring their gender identities.

A.F. Trastorno límite de la personalidad = A.F. Boderline personality disorder

Directory of Open Access Journals (Sweden)

Aguilar Martínez, Carlos

2008-02-01

Full Text Available RESUMENEl objetivo principal de este artículo es mostrar la utilización del Marco de trabajo para la práctica de la terapia ocupacional: dominios y procesos (AOTA, 2002 y contrastar su utilidad para la organización y presentación de los resultados de la evaluación ocupacional inicial. Este objetivo se articula a través de la presentación de un caso clínico de un sujeto diagnosticado de trastorno límite de la personalidad, desarrollado en el Departamento de terapia ocupacional de un Centro de Rehabilitación Psicosocial y Laboral. SUMMARY The principal target of this article is show the utilization of the Occupational Therapy Practice Framework: domain and process (AOTA, 2002 and confirm its utility for the organization and presentation of the results of the occupational initial evaluation. This target articulates across the presentation of a clinical case of a subject diagnosed of borderline personality disorder, developed in the Department of occupational therapy of Phsycosocial and Labour Rehabilitacion Center

Speech characteristics in a Ugandan child with a rare paramedian craniofacial cleft: a case report.

Science.gov (United States)

Van Lierde, K M; Bettens, K; Luyten, A; De Ley, S; Tungotyo, M; Balumukad, D; Galiwango, G; Bauters, W; Vermeersch, H; Hodges, A

2013-03-01

The purpose of this study is to describe the speech characteristics in an English-speaking Ugandan boy of 4.5 years who has a rare paramedian craniofacial cleft (unilateral lip, alveolar, palatal, nasal and maxillary cleft, and associated hypertelorism). Closure of the lip together with the closure of the hard and soft palate (one-stage palatal closure) was performed at the age of 5 months. Objective as well as subjective speech assessment techniques were used. The speech samples were perceptually judged for articulation, intelligibility and nasality. The Nasometer was used for the objective measurement of the nasalance values. The most striking communication problems in this child with the rare craniofacial cleft are an incomplete phonetic inventory, a severely impaired speech intelligibility with the presence of very severe hypernasality, mild nasal emission, phonetic disorders (omission of several consonants, decreased intraoral pressure in explosives, insufficient frication of fricatives and the use of a middorsum palatal stop) and phonological disorders (deletion of initial and final consonants and consonant clusters). The increased objective nasalance values are in agreement with the presence of the audible nasality disorders. The results revealed that several phonetic and phonological articulation disorders together with a decreased speech intelligibility and resonance disorders are present in the child with a rare craniofacial cleft. To what extent a secondary surgery for velopharyngeal insufficiency, combined with speech therapy, will improve speech intelligibility, articulation and resonance characteristics is a subject for further research. The results of such analyses may ultimately serve as a starting point for specific surgical and logopedic treatment that addresses the specific needs of children with rare facial clefts. Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.

Social Anxiety Disorder and Mood Disorders Comorbidity

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Zerrin Binbay

2012-03-01

Full Text Available Social Anxiety Disorder is a common disorder leading functional impairment. The comorbidity between mood disorders with social anxiety disorder is relatively common. This comorbidity impacts the clinical severity, resistance and functionality of patients. The systematic evaluation of the comorbidity in both patient groups should not be ignored and be carefully conducted. In general, social anxiety disorder starts at an earlier age than mood disorders and is reported to be predictor for subsequent major depression. The absence of comorbidity in patients with social anxiety disorder is a predictor of good response to treatment. In bipolar disorder patients with comorbid social anxiety disorder, there is an increased level of general psychopathology. Besides, they have poor outcome and increased risk of suicide. In this article, comorbidity between these two disorders has been evaluated in detail.

Affective disorders among patients with borderline personality disorder.

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Sjåstad, Hege Nordem; Gråwe, Rolf W; Egeland, Jens

2012-01-01

The high co-occurrence between borderline personality disorder and affective disorders has led many to believe that borderline personality disorder should be considered as part of an affective spectrum. The aim of the present study was to examine whether the prevalence of affective disorders are higher for patients with borderline personality disorder than for patients with other personality disorders. In a national cross-sectional study of patients receiving mental health treatment in Norway (N = 36 773), we determined whether psychiatric outpatients with borderline personality disorder (N = 1 043) had a higher prevalence of affective disorder in general, and whether they had an increased prevalence of depression, bipolar disorder or dysthymia specifically. They were compared to patients with paranoid, schizoid, dissocial, histrionic, obsessive-compulsive, avoidant, dependent, or unspecified personality disorder, as well as an aggregated group of patients with personality disorders other than the borderline type (N = 2 636). Odds ratios were computed for the borderline personality disorder group comparing it to the mixed sample of other personality disorders. Diagnostic assessments were conducted in routine clinical practice. More subjects with borderline personality disorder suffered from unipolar than bipolar disorders. Nevertheless, borderline personality disorder had a lower rate of depression and dysthymia than several other personality disorder groups, whereas the rate of bipolar disorder tended to be higher. Odds ratios showed 34% lower risk for unipolar depression, 70% lower risk for dysthymia and 66% higher risk for bipolar disorder in patients with borderline personality disorder compared to the aggregated group of other personality disorders. The results suggest that borderline personality disorder has a stronger association with affective disorders in the bipolar spectrum than disorders in the unipolar spectrum. This association may reflect

Affective disorders among patients with borderline personality disorder.

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Hege Nordem Sjåstad

Full Text Available BACKGROUND: The high co-occurrence between borderline personality disorder and affective disorders has led many to believe that borderline personality disorder should be considered as part of an affective spectrum. The aim of the present study was to examine whether the prevalence of affective disorders are higher for patients with borderline personality disorder than for patients with other personality disorders. METHODS: In a national cross-sectional study of patients receiving mental health treatment in Norway (N = 36 773, we determined whether psychiatric outpatients with borderline personality disorder (N = 1 043 had a higher prevalence of affective disorder in general, and whether they had an increased prevalence of depression, bipolar disorder or dysthymia specifically. They were compared to patients with paranoid, schizoid, dissocial, histrionic, obsessive-compulsive, avoidant, dependent, or unspecified personality disorder, as well as an aggregated group of patients with personality disorders other than the borderline type (N = 2 636. Odds ratios were computed for the borderline personality disorder group comparing it to the mixed sample of other personality disorders. Diagnostic assessments were conducted in routine clinical practice. RESULTS: More subjects with borderline personality disorder suffered from unipolar than bipolar disorders. Nevertheless, borderline personality disorder had a lower rate of depression and dysthymia than several other personality disorder groups, whereas the rate of bipolar disorder tended to be higher. Odds ratios showed 34% lower risk for unipolar depression, 70% lower risk for dysthymia and 66% higher risk for bipolar disorder in patients with borderline personality disorder compared to the aggregated group of other personality disorders. CONCLUSIONS: The results suggest that borderline personality disorder has a stronger association with affective disorders in the bipolar spectrum than

Affective Disorders among Patients with Borderline Personality Disorder

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Sjåstad, Hege Nordem; Gråwe, Rolf W.; Egeland, Jens

2012-01-01

Background The high co-occurrence between borderline personality disorder and affective disorders has led many to believe that borderline personality disorder should be considered as part of an affective spectrum. The aim of the present study was to examine whether the prevalence of affective disorders are higher for patients with borderline personality disorder than for patients with other personality disorders. Methods In a national cross-sectional study of patients receiving mental health treatment in Norway (N = 36 773), we determined whether psychiatric outpatients with borderline personality disorder (N = 1 043) had a higher prevalence of affective disorder in general, and whether they had an increased prevalence of depression, bipolar disorder or dysthymia specifically. They were compared to patients with paranoid, schizoid, dissocial, histrionic, obsessive-compulsive, avoidant, dependent, or unspecified personality disorder, as well as an aggregated group of patients with personality disorders other than the borderline type (N = 2 636). Odds ratios were computed for the borderline personality disorder group comparing it to the mixed sample of other personality disorders. Diagnostic assessments were conducted in routine clinical practice. Results More subjects with borderline personality disorder suffered from unipolar than bipolar disorders. Nevertheless, borderline personality disorder had a lower rate of depression and dysthymia than several other personality disorder groups, whereas the rate of bipolar disorder tended to be higher. Odds ratios showed 34% lower risk for unipolar depression, 70% lower risk for dysthymia and 66% higher risk for bipolar disorder in patients with borderline personality disorder compared to the aggregated group of other personality disorders. Conclusions The results suggest that borderline personality disorder has a stronger association with affective disorders in the bipolar spectrum than disorders in the unipolar

Bipolar Disorder and Obsessive Compulsive Disorder Comorbidity

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Necla Keskin

2014-08-01

Full Text Available The comorbidity of bipolar disorder and anxiety disorders is a well known concept. Obsessive-compulsive disorder is the most commonly seen comorbid anxiety disorder in bipolar patients. Some genetic variants, neurotransmitters especially serotonergic systems and second-messenger systems are thought to be responsible for its etiology. Bipolar disorder alters the clinical aspects of obsessive compulsive disorder and is associated with poorer outcome. The determination of comorbidity between bipolar disorder and obsessive compulsive disorder is quite important for appropriate clinical management and treatment. [Psikiyatride Guncel Yaklasimlar - Current Approaches in Psychiatry 2014; 6(4.000: 429-437

Inverse kinematics research using obstacle avoidance geometry method for EAST Articulated Maintenance Arm (EAMA)

International Nuclear Information System (INIS)

Wang, Kun; Song, Yuntao; Wu, Huapeng; Wei, Xiaoyang; Khan, Shahab Ud-Din; Cheng, Yong

2017-01-01

Highlights: • An Obstacle Topology Partition Projection (OTPP) method of tokamak-like vessel for collision detection. • Median values preferentially of depth-first search algorithm for solving redundant inverse kinematics based on OTPP. • Application of RIK in grasping target objects. - Abstract: This paper proposed a new method for solving inverse kinematics (IK) of a redundant manipulator called EAST Articulated Maintenance Arm (EAMA), which is applied in the fusion reactor EAST (Experimental Advanced Superconducting Tokamak) and used to complete some maintenance tasks in the complex areas. However, it is difficult to realize remote control due to its redundancy, coupling structure and the complex operational environment. The IK research of the robot played a vital role to the manipulator’s motion control algorithm of remote handling (RH) technology. An Obstacle Topology Partition Projection (OTPP) approach integrated with Modified Inverse Depth First Search (MIDFS) method was presented. This is a kind of new geometric algorithm in order to solve the problem of IK for a high-redundancy manipulator. It can also be used to find a solution satisfying collision avoidance with optimal safety distance between the manipulator and obstacles. Simulations and experiments were conducted to demonstrate the efficiency and accuracy of the proposed method.

Inverse kinematics research using obstacle avoidance geometry method for EAST Articulated Maintenance Arm (EAMA)

Energy Technology Data Exchange (ETDEWEB)

Wang, Kun, E-mail: wangkun@ipp.ac.cn [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei (China); Lappeenranta University of Technology, Lappeenranta (Finland); University of Science and Technology of China, Hefei (China); Song, Yuntao [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei (China); University of Science and Technology of China, Hefei (China); Wu, Huapeng [Lappeenranta University of Technology, Lappeenranta (Finland); Wei, Xiaoyang; Khan, Shahab Ud-Din; Cheng, Yong [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei (China)

2017-06-15

Highlights: • An Obstacle Topology Partition Projection (OTPP) method of tokamak-like vessel for collision detection. • Median values preferentially of depth-first search algorithm for solving redundant inverse kinematics based on OTPP. • Application of RIK in grasping target objects. - Abstract: This paper proposed a new method for solving inverse kinematics (IK) of a redundant manipulator called EAST Articulated Maintenance Arm (EAMA), which is applied in the fusion reactor EAST (Experimental Advanced Superconducting Tokamak) and used to complete some maintenance tasks in the complex areas. However, it is difficult to realize remote control due to its redundancy, coupling structure and the complex operational environment. The IK research of the robot played a vital role to the manipulator’s motion control algorithm of remote handling (RH) technology. An Obstacle Topology Partition Projection (OTPP) approach integrated with Modified Inverse Depth First Search (MIDFS) method was presented. This is a kind of new geometric algorithm in order to solve the problem of IK for a high-redundancy manipulator. It can also be used to find a solution satisfying collision avoidance with optimal safety distance between the manipulator and obstacles. Simulations and experiments were conducted to demonstrate the efficiency and accuracy of the proposed method.

ITER Articulated Inspection Arm (AIA): Geometric calibration issues of a long-reach flexible robot

International Nuclear Information System (INIS)

Arhur, D.; Perrot, Y.; Bidard, C.; Friconneau, J.P.; Palmer, J.D.; Semeraro, L.

2005-01-01

This paper is part of the Remote Handling (RH) activities for the future fusion reactor ITER. Specifically it relates to the possibility to carry out close inspection tasks of the Vacuum Vessel first wall using a long reach robot called the 'Articulated Inspection Arm' (AIA). Early studies for this device identified the need of improving the accuracy of the end-effector position in such robot structures. Therefore, the aim of this R and D program performed under the European Fusion Development Agreement (EFDA) work program is to develop a flexible parametric model with localised compliances of an AIA-like system, in order to compensate for its flexibilities. The geometric calibration is performed using a non-linear multivariable optimisation technique, which minimizes the average error between the simulated and real robot position. The optimised set of parameters, tested on the first segment of the robot, enables to divide by 3 the error on the end-effector position, in comparison to a rigid model. We expect better prediction after mechanical improvements to reduce the serious backlash in the joints. The prediction model applied to the whole arm will enable errors to be reduced from more than 1 m, in some configurations, to a final accuracy of a few centimetres

Audio-visual identification of place of articulation and voicing in white and babble noise.

Science.gov (United States)

Alm, Magnus; Behne, Dawn M; Wang, Yue; Eg, Ragnhild

2009-07-01

Research shows that noise and phonetic attributes influence the degree to which auditory and visual modalities are used in audio-visual speech perception (AVSP). Research has, however, mainly focused on white noise and single phonetic attributes, thus neglecting the more common babble noise and possible interactions between phonetic attributes. This study explores whether white and babble noise differentially influence AVSP and whether these differences depend on phonetic attributes. White and babble noise of 0 and -12 dB signal-to-noise ratio were added to congruent and incongruent audio-visual stop consonant-vowel stimuli. The audio (A) and video (V) of incongruent stimuli differed either in place of articulation (POA) or voicing. Responses from 15 young adults show that, compared to white noise, babble resulted in more audio responses for POA stimuli, and fewer for voicing stimuli. Voiced syllables received more audio responses than voiceless syllables. Results can be attributed to discrepancies in the acoustic spectra of both the noise and speech target. Voiced consonants may be more auditorily salient than voiceless consonants which are more spectrally similar to white noise. Visual cues contribute to identification of voicing, but only if the POA is visually salient and auditorily susceptible to the noise type.

Comorbid personality disorders in subjects with panic disorder: which personality disorders increase clinical severity?

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Mustafa Ozkan

2003-03-01

Full Text Available Personality disorders are common in subjects with panic disorder. Personality disorders have shown to affect the course of panic disorder. The purpose of this study was to examine which personality disorders effect clinical severity in subjects with panic disorder. This study included 122 adults (71 female, 41 male, who met DSM-IV criteria for panic disorder (with or without agoraphobia. Clinical assessment was conducted by using the Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I, the Structured Clinical Interview for DSM-IV Axis II Personality Disorders (SCID-II and the Panic and Agoraphobia Scale (PAS, Global Assessment Functioning Scale (GAF, Beck Depression Inventory (BDI, and State-Trait Anxiety Inventory (STAI. Patients who had a history of sexual abuse were assessed with Sexual Abuse Severity Scale. Logistic regressions were used to identify predictors of suicide attempts, suicidal ideation, agoraphobia, different panic attack symptoms, sexual abuse, and early onset of disorders. The rates of comorbid Axis I and Axis II psychiatric disorders were 80.3% and 33.9%, consecutively, in patients with panic disorder. Panic disorder patients with comorbid personality disorders had more severe anxiety, depression and agoraphobia symptoms, and had earlier ages of onset, and lower levels of functioning. The rates of suicidal ideation and suicide attempts were 34.8% and 9.8%, consecutively, in subjects with panic disorder. The rate of patients with panic disorder had a history of childhood sexual abuse was 12.5%. The predictor of sexual abuse was more than one comorbid Axis II diagnosis. The predictors of suicide attempt were comorbid paranoid and borderline personality disorders, and the predictor of suicidal ideation was major depressive disorder in subjects with panic disorder. In conclusion, this study documents that comorbid personality disorders increase the clinical severity of panic disorder. Patients with more than one

Sleep Disorders in Childhood Neurogenetic Disorders

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Laura Beth Mann Dosier

2017-09-01

Full Text Available Genetic advances in the past three decades have transformed our understanding and treatment of many human diseases including neurogenetic disorders. Most neurogenetic disorders can be classified as “rare disease,” but collectively neurogenetic disorders are not rare and are commonly encountered in general pediatric practice. The authors decided to select eight relatively well-known neurogenetic disorders including Down syndrome, Angelman syndrome, Prader–Willi syndrome, Smith–Magenis syndrome, congenital central hypoventilation syndrome, achondroplasia, mucopolysaccharidoses, and Duchenne muscular dystrophy. Each disorder is presented in the following format: overview, clinical characteristics, developmental aspects, associated sleep disorders, management and research/future directions.

Comparative Prevalence of Eating Disorders in Obsessive-Compulsive Disorder and Other Anxiety Disorders

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Himanshu Tyagi

2015-01-01

Full Text Available Objective. The purpose of this study was to compare the prevalence of comorbid eating disorders in Obsessive-Compulsive Disorder (OCD and other common anxiety disorders. Method. 179 patients from the same geographical area with a diagnosis of OCD or an anxiety disorder were divided into two groups based on their primary diagnosis. The prevalence of a comorbid eating disorder was calculated in both groups. Results. There was no statistically significant difference in the prevalence of comorbid eating disorders between the OCD and other anxiety disorders group. Conclusions. These results suggest that the prevalence of comorbid eating disorders does not differ in anxiety disorders when compared with OCD. However, in both groups, it remains statistically higher than that of the general population.

[Dissociative disorders and affective disorders].

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Montant, J; Adida, M; Belzeaux, R; Cermolacce, M; Pringuey, D; Da Fonseca, D; Azorin, J-M

2014-12-01

The phenomenology of dissociative disorders may be complex and sometimes confusing. We describe here two cases who were initially misdiagnosed. The first case concerned a 61 year-old woman, who was initially diagnosed as an isolated dissociative fugue and was actually suffering from severe major depressive episode. The second case concerned a 55 year-old man, who was suffering from type I bipolar disorder and polyvascular disease, and was initially diagnosed as dissociative fugue in a mooddestabilization context, while it was finally a stroke. Yet dissociative disorders as affective disorder comorbidity are relatively unknown. We made a review on this topic. Dissociative disorders are often studied through psycho-trauma issues. Litterature is rare on affective illness comorbid with dissociative disorders, but highlight the link between bipolar and dissociative disorders. The later comorbidity often refers to an early onset subtype with also comorbid panic and depersonalization-derealization disorder. Besides, unipolar patients suffering from dissociative symptoms have more often cyclothymic affective temperament. Despite the limits of such studies dissociative symptoms-BD association seems to correspond to a clinical reality and further works on this topic may be warranted. Copyright © 2014 L’Encéphale. Published by Elsevier Masson SAS.. All rights reserved.

What’s In and What’s Out in Branding? A Novel Articulation Effect for Brand Names

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Sascha eTopolinski

2015-05-01

Full Text Available The present approach exploits the biomechanical connection between articulation and ingestion-related mouth movements to introduce a novel psychological principle of brand name design. We constructed brand names for diverse products with consonantal stricture spots either from the front to the rear of the mouth, thus inwards (e.g., BODIKA, or from the rear to the front, thus outwards (e.g., KODIBA. These muscle dynamics resemble the oral kinematics during either ingestion (inwards, which feels positive, or expectoration (outwards, which feels negative. In 7 experiments (total N = 1261, participants liked products with inward names more than products with outward names (Experiment 1, reported higher purchase intentions (Experiment 2, and higher willingness-to-pay (Experiments 3a-3c, 4, 5, with the price gain amounting to 4 % to 13 % of the average estimated product value. These effects occurred across English and German language, under silent reading, for both edible and non-edible products, and even in the presence of a much stronger price determinant, namely fair-trade production (Experiment 5.

Comorbidity of bipolar disorder and eating disorders.

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Álvarez Ruiz, Eva M; Gutiérrez-Rojas, Luis

2015-01-01

The comorbidity of bipolar disorder and eating disorders has not been studied in depth. In addition, clinical implications involved in the appearance of both disorders are very important. A systematic literature review of MEDLINE published up to September 2013 was performed, analyzing all the articles that studied the comorbidity of both conditions (bipolar disorder and eating disorders) and others research that studied the efficacy of pharmacological treatment and psychotherapy to improve these illnesses. In this review we found a high comorbidity of bipolar disorder and eating disorders, especially of bulimia nervosa and binge eating disorder. Studies show that lithium and topiramate are 2 of the more effective pharmacological agents in the treatment of both disorders. There are a lot of studies that show evidence of comorbidity of bipolar disorder and eating disorders. However, further research is needed on assessment and treatment when these conditions co-exist, as well as study into the biopsychological aspects to determine the comorbid aetiology. Copyright © 2014 SEP y SEPB. Published by Elsevier España. All rights reserved.

Comorbid personality disorders in subjects with panic disorder: which personality disorders increase clinical severity?

OpenAIRE

Mustafa Ozkan; Abdurrahman Altindag

2003-01-01

Personality disorders are common in subjects with panic disorder. Personality disorders have shown to affect the course of panic disorder. The purpose of this study was to examine which personality disorders effect clinical severity in subjects with panic disorder. This study included 122 adults (71 female, 41 male), who met DSM-IV criteria for panic disorder (with or without agoraphobia). Clinical assessment was conducted by using the Structured Clinical Interview for DSM-IV Axis I Disorders...

Comorbidity of mood and substance use disorders in patients with binge-eating disorder: Associations with personality disorder and eating disorder pathology.

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Becker, Daniel F; Grilo, Carlos M

2015-08-01

Binge-eating disorder (BED) is associated with elevated rates of mood and substance use disorders, but the significance of such comorbidity is ambiguous. We compared personality disorder and eating disorder psychopathology in four subgroups of BED patients: those with mood disorders, those with substance use disorders, those with both, and those with neither. Subjects were 347 patients who met DSM-IV research criteria for BED. Semistructured interviews evaluated lifetime DSM-IV axis I disorders, DSM-IV personality disorder features, and eating disorder psychopathology. Among these patients, 129 had co-occurring mood disorder, 34 had substance use disorder, 60 had both, and 124 had neither. Groups differed on personality disorder features, with those having mood disorder and both mood and substance use disorders showing the highest frequencies. Although groups did not differ in body mass index or binge eating frequency, they did differ on eating disorder psychopathology-with the groups having mood disorder and both comorbidities demonstrating higher eating, weight, and shape concerns. No differences were observed between groups with respect to ages of onset for specific eating behaviors, but some differences were observed for ages of disorder onset. Mood and substance use disorders co-occur frequently among patients with BED. Compared with a previous work, the additional comparison group (those with both mood and substance use disorders) and the control group (those with neither) afforded better discrimination regarding the significance of these comorbidities. Our findings suggest approaches to subtyping BED based on psychiatric comorbidity, and may also have implications for treatment. Copyright © 2015 Elsevier Inc. All rights reserved.

Scapulothoracic Anatomy and Snapping Scapula Syndrome

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Rachel M. Frank

2013-01-01

Full Text Available The scapulothoracic articulation is a sliding junction between the deep aspect of the scapula and thoracic rib cage at the levels of ribs 2 through 7. Motion at this articulation is dynamically stabilized by a variety of muscular attachments, allowing for controlled positioning of the glenoid to assist in glenohumeral joint function. A thorough understanding of the complex anatomic relationships, including the various muscles, and bursa, is critical to the evaluation of patients presenting with scapulothoracic disorders. The snapping scapula syndrome is caused by either osseous lesions or scapulothoracic bursitis and can be difficult to recognize and treat. The purpose of this review is to discuss the anatomy of the scapulothoracic articulation with an emphasis on the pathology associated with snapping scapula syndrome.

Autism spectrum disorder - childhood disintegrative disorder

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... part of the larger developmental disorder category of autism spectrum disorder . ... American Psychiatric Association. Autism spectrum disorder. ... VA: American Psychiatric Publishing: 2013;50-59. Raviola GJ, ...

Confirming Sterility of an Autoclaved Infected Femoral Component for Use in an Articulated Antibiotic Knee Spacer: A Pilot Study.

Science.gov (United States)

Lyons, Steven T; Wright, Coy A; Krute, Christina N; Rivera, Frances E; Carroll, Ronan K; Shaw, Lindsey N

2016-01-01

Antibiotic spacer designs have proven effective at eradicating infection during a two-stage revision arthroplasty. Temporary reuse of the steam-sterilized femoral component and a new all poly tibia component has been described as an effective articulating antibiotic spacer, but sterility concerns persist. Six explanted cobalt chrome femurs from patients with grossly infected TKA's and six stock femurs inoculated with different bacterial species were confirmed to be bacteria-free after autoclaving under a standard gravity-displacement cycle. The effect of steam sterilization on cobalt chrome fragments contaminated with MRSA biofilm was analyzed microscopically to quantify remaining biofilm. The autoclave significantly reduced the biofilm burden on the cobalt chrome fragments. This study confirmed sterility of the femur after a standard gravity-displacement cycle (132°C, 27 PSIG, 10 minutes). Copyright © 2016 Elsevier Inc. All rights reserved.

Chronic complex dissociative disorders and borderline personality disorder: disorders of emotion dysregulation?

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Brand, Bethany L; Lanius, Ruth A

2014-01-01

Emotion dysregulation is a core feature of chronic complex dissociative disorders (DD), as it is for borderline personality disorder (BPD). Chronic complex DD include dissociative identity disorder (DID) and the most common form of dissociative disorder not otherwise specified (DDNOS, type 1), now known as Other Specified Dissociative Disorders (OSDD, type 1). BPD is a common comorbid disorder with DD, although preliminary research indicates the disorders have some distinguishing features as well as considerable overlap. This article focuses on the epidemiology, clinical presentation, psychological profile, treatment, and neurobiology of chronic complex DD with emphasis placed on the role of emotion dysregulation in each of these areas. Trauma experts conceptualize borderline symptoms as often being trauma based, as are chronic complex DD. We review the preliminary research that compares DD to BPD in the hopes that this will stimulate additional comparative research.

Mental Disorders

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Mental disorders include a wide range of problems, including Anxiety disorders, including panic disorder, obsessive-compulsive disorder, ... disorders, including schizophrenia There are many causes of mental disorders. Your genes and family history may play ...

Comorbidity bipolar disorder and personality disorders.

Science.gov (United States)

Latalova, Klara; Prasko, Jan; Kamaradova, Dana; Sedlackova, Jana; Ociskova, Marie

2013-01-01

Outcome in bipolar patients can be affected by comorbidity of other psychiatric disorders. Comorbid personality disorders are frequent and may complicate the course of bipolar illness. We have much information about treating patients with uncomplicated bipolar disorder (BD) but much less knowledge about possibilities for patients with the comorbidity of BD and personality disorder. We conducted a series of literature searches using, as key words or as items in indexed fields, bipolar disorder and personality disorder or personality traits. Articles were obtained by searching MEDLINE from 1970 to 2012. In addition, we used other papers cited in articles from these searches, or cited in articles used in our own work. Tests of personality traits indicated that euthymic bipolar patients have higher scores on harm avoidance, reward dependence, and novelty seeking than controls. Elevation of novelty seeking in bipolar patients is associated with substance abuse comorbidity. Comorbidity with personality disorders in BD patients is associated with a more difficult course of illness (such as longer episodes, shorter time euthymic, and earlier age at onset) and an increase in comorbid substance abuse, suicidality and aggression. These problems are particularly pronounced in comorbidity with borderline personality disorder. Comorbidity with antisocial personality disorder elicits a similar spectrum of difficulties; some of the antisocial behavior exhibited by patients with this comorbidity is mediated by increased impulsivity.

Using the mood disorder questionnaire and bipolar spectrum diagnostic scale to detect bipolar disorder and borderline personality disorder among eating disorder patients

Science.gov (United States)

2013-01-01

Background Screening scales for bipolar disorder including the Mood Disorder Questionnaire (MDQ) and Bipolar Spectrum Diagnostic Scale (BSDS) have been plagued by high false positive rates confounded by presence of borderline personality disorder. This study examined the accuracy of these scales for detecting bipolar disorder among patients referred for eating disorders and explored the possibility of simultaneous assessment of co-morbid borderline personality disorder. Methods Participants were 78 consecutive female patients who were referred for evaluation of an eating disorder. All participants completed the mood and eating disorder sections of the SCID-I/P and the borderline personality disorder section of the SCID-II, in addition to the MDQ and BSDS. Predictive validity of the MDQ and BSDS was evaluated by Receiver Operating Characteristic analysis of the Area Under the Curve (AUC). Results Fifteen (19%) and twelve (15%) patients fulfilled criteria for bipolar II disorder and borderline personality disorder, respectively. The AUCs for bipolar II disorder were 0.78 (MDQ) and 0.78 (BDSD), and the AUCs for borderline personality disorder were 0.75 (MDQ) and 0.79 (BSDS). Conclusions Among patients being evaluated for eating disorders, the MDQ and BSDS show promise as screening questionnaires for both bipolar disorder and borderline personality disorder. PMID:23443034

Anxiety Disorders

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... Registry Residents & Medical Students Residents Medical Students Patients & Families Mental Health Disorders/Substance Use Find a Psychiatrist Addiction and Substance Use Disorders ADHD Anxiety Disorders Autism Spectrum Disorder Bipolar Disorders Depression Eating Disorders Obsessive-Compulsive ...

Lacus Ligustinus as an Agent of Urban Articulation and Terrestrial Connectivity: From the Banks of Hasta Regia to Carissa Aurelia and the Acces Path to the Highlands

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Lázaro G. LAGÓSTENA BARRIOS

2016-11-01

Full Text Available The role of Baetis estuary is analysed as a factor of first urban networks articulation, and territorial connectivity in Antiquity. This approach brings us a greater understanding of the terrestrial communications origins between the urban centres of this area. Also it reflects the progressive historical reorientation of the communication routes, which has generated an actual perception of this geography and their access that are far different from the previous organization in the Protohistory.

How theory is used and articulated in qualitative research: development of a new typology.

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Bradbury-Jones, Caroline; Taylor, Julie; Herber, Oliver

2014-11-01

There is a long tradition within qualitative research of theory being central and of critical importance. Qualitative research theory often equates with the methodologies used but this is a complex relationship, plagued by lack of consensus among scholars regarding how theory and methodology are related. This article furthers the debates on how theories are used in qualitative research, how they might influence a study and how they are articulated in publications. The aim is to provide a framework through which the relationship between theory and qualitative research can be understood. We propose a five-point typology on the levels of theoretical visibility, testing this against a range of published research from five key international health, medicine and social science journals. The typology captures a range of visibility--from seemingly absent through to highly visible and applied throughout. There was a clear gradient in this assessment--only a minority appeared to use theory consistently throughout a study. We outline several challenges to consistently applying theory in qualitative research and suggest potential solutions. This article is based on the argument that lack of theory in qualitative research undermines its quality. The typology is offered to assist researchers in applying theory in their own research and critiquing its use in the work of others. Copyright © 2014 Elsevier Ltd. All rights reserved.

Autistic disorder in 2 children with mitochondrial disorders.

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Tsao, Chang-Yong; Mendell, Jerry R

2007-09-01

Autistic disorder is a heterogeneous disorder. The majority of the cases are idiopathic, and only a small number of the autistic children have associated secondary diagnosis. This article reports 2 children with mitochondrial disorders associated with autistic disorder fulfilling the diagnostic criteria of the American Psychiatric Association Manual of Psychiatric Diseases, 4th edition, and briefly reviews the literature on autistic disorder associated with mitochondrial disorders.

Differential Control Strategy based on an Equal Slip Rate for an All-wheel Electricdrive Underground Articulated Dumping Truck

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Jin Chun

2014-09-01

Full Text Available A differential control strategy based on equal slip rates is introduced to improve the steering stability of an all-wheelelectric-drive underground articulated dumping truck. Steering kinematic and dynamic models of the truck are derived to describe the movement relationship and force of the driving wheels. In consideration of the difficulty of obtaining the absolute velocity for an all-wheel-drive truck, an acceleration sensor was set on a test truck, and a kalman filter was applied to obtain the actual value for the truck body. Simulation results for an equal-slip control strategy were compared with experimental results for an equal-torque control strategy. In the simulation, the four-wheel slip rate was 0.08 and the steering system of the truck was stable. The results verify that the equal-slip control strategy makes better use of the ground adhesion coefficient, is able to reasonably distribute drive power, notably reduces tire wear, and improves the use of driving power.

From subjects to relations: Bioethics and the articulation of postcolonial politics in the Cambodia Pre-Exposure Prophylaxis trial.

Science.gov (United States)

Grant, Jenna M

2016-04-01

Controversies about global clinical trials, particularly HIV trials, tend to be framed in terms of ethics. In this article, I explore debates about ethics in the Cambodia Pre-Exposure Prophylaxis trial, which was designed to test the safety and efficacy of tenofovir as a prevention for HIV infection. Bringing together studies of public participation in science with studies of bioethics, I show how activists around the Cambodian Pre-Exposure Prophylaxis trial circulated and provoked debates about standards of research ethics, as opposed to research methodology. This postcolonial bioethics was configured through the circulation of and debate about ethics guidelines, and historically and culturally specific relations of vulnerability and responsibility between foreigners and Cambodians and between Cambodian leaders and Cambodian subjects. I argue that this shift in the object of ethical concern, from the experimental human subject to the relation between subjects and researchers, illustrates how a postcolonial field of articulation reformulates classical bioethics.

Eating disorder symptoms in affective disorder.

OpenAIRE

Wold, P N

1991-01-01

Patients with Major Affective Disorder (MAD), Secondary Depression, Panic Disorder, and bulimia with and without MAD, were given the Eating Disorder Inventory, the Beck Depression Inventory, and the General Behavior Inventory at presentation. It was found that patients with MAD have a triad of eating disorder symptoms: a disturbance in interoceptive awareness, the sense of ineffectiveness, and a tendency toward bulimia. The data supported the concept that the sense of ineffectiveness is secon...

Attention-deficit hyperactivity disorder and anxiety disorders as precursors of bipolar disorder onset in adulthood

DEFF Research Database (Denmark)

Meier, Sandra M; Pavlova, Barbara; Dalsgaard, Søren

2018-01-01

BACKGROUND: Attention-deficit hyperactivity disorder (ADHD) and anxiety disorders have been proposed as precursors of bipolar disorder, but their joint and relative roles in the development of bipolar disorder are unknown.AimsTo test the prospective relationship of ADHD and anxiety with onset...... of bipolar disorder. METHOD: We examined the relationship between ADHD, anxiety disorders and bipolar disorder in a birth cohort of 2 409 236 individuals born in Denmark between 1955 and 1991. Individuals were followed from their sixteenth birthday or from January 1995 to their first clinical contact...... for bipolar disorder or until December 2012. We calculated incidence rates per 10 000 person-years and tested the effects of prior diagnoses on the risk of bipolar disorder in survival models. RESULTS: Over 37 394 865 person-years follow-up, 9250 onsets of bipolar disorder occurred. The incidence rate...

Trauma y trastornos de la alimentación: Implicaciones teóricas y terapéuticas Trauma and eating disorders: Theoretical and therapeutical implications

Directory of Open Access Journals (Sweden)

Luisa Castaldi

2008-12-01

Full Text Available Los trastornos de alimentación representan un fenómeno complejo, cuya aproximación implica miradas que integren múltiples niveles de análisis. El presente documento pretende analizar el concepto de trauma relacional aplicado a contextos relacionales en los cuales un miembro presenta tal sintomatología. Se presentan y articulan las implicancias ligadas a la hipótesis planteada, con el objetivo de evidenciar como el tomar en consideración la existencia de un trauma relacional puede ser útil para profundizar aspectos de la dinámica familiar y del posicionamiento individual del miembro sintomático, integrando los aportes psicoanalíticos y sistémicos. Se articulará dicho concepto con la visión trigeneracional clásica y se explicitarán las implicancias posibles en relación al trabajo terapéutico. Eating disorders represent a complex phenomenon that requires a multiple-level analysis approach. The present document analyzes the concept of relational trauma applied to relational contexts where a member presents the symptomatology. The implications linked to the hypothesis proposed are presented and articulated, with the purpose of providing evidence of how considering the existence of a relational trauma can be useful for analyzing elements of family dynamics and of the individual positioning of the symptomatic member, integrating both psychoanalytic and systemic contributions. The concept of relational trauma is articulated with the traditional third-generation view, and the possible implications concerning therapeutic work are stated.

Calibration of a flexible measurement system based on industrial articulated robot and structured light sensor

Science.gov (United States)

Mu, Nan; Wang, Kun; Xie, Zexiao; Ren, Ping

2017-05-01

To realize online rapid measurement for complex workpieces, a flexible measurement system based on an articulated industrial robot with a structured light sensor mounted on the end-effector is developed. A method for calibrating the system parameters is proposed in which the hand-eye transformation parameters and the robot kinematic parameters are synthesized in the calibration process. An initial hand-eye calibration is first performed using a standard sphere as the calibration target. By applying the modified complete and parametrically continuous method, we establish a synthesized kinematic model that combines the initial hand-eye transformation and distal link parameters as a whole with the sensor coordinate system as the tool frame. According to the synthesized kinematic model, an error model is constructed based on spheres' center-to-center distance errors. Consequently, the error model parameters can be identified in a calibration experiment using a three-standard-sphere target. Furthermore, the redundancy of error model parameters is eliminated to ensure the accuracy and robustness of the parameter identification. Calibration and measurement experiments are carried out based on an ER3A-C60 robot. The experimental results show that the proposed calibration method enjoys high measurement accuracy, and this efficient and flexible system is suitable for online measurement in industrial scenes.

An Adaptive Supervisory Sliding Fuzzy Cerebellar Model Articulation Controller for Sensorless Vector-Controlled Induction Motor Drive Systems

Directory of Open Access Journals (Sweden)

Shun-Yuan Wang

2015-03-01

Full Text Available This paper presents the implementation of an adaptive supervisory sliding fuzzy cerebellar model articulation controller (FCMAC in the speed sensorless vector control of an induction motor (IM drive system. The proposed adaptive supervisory sliding FCMAC comprised a supervisory controller, integral sliding surface, and an adaptive FCMAC. The integral sliding surface was employed to eliminate steady-state errors and enhance the responsiveness of the system. The adaptive FCMAC incorporated an FCMAC with a compensating controller to perform a desired control action. The proposed controller was derived using the Lyapunov approach, which guarantees learning-error convergence. The implementation of three intelligent control schemes—the adaptive supervisory sliding FCMAC, adaptive sliding FCMAC, and adaptive sliding CMAC—were experimentally investigated under various conditions in a realistic sensorless vector-controlled IM drive system. The root mean square error (RMSE was used as a performance index to evaluate the experimental results of each control scheme. The analysis results indicated that the proposed adaptive supervisory sliding FCMAC substantially improved the system performance compared with the other control schemes.

Trichotillomania (hair pulling disorder), skin picking disorder, and stereotypic movement disorder: toward DSM-V.

Science.gov (United States)

Stein, Dan J; Grant, Jon E; Franklin, Martin E; Keuthen, Nancy; Lochner, Christine; Singer, Harvey S; Woods, Douglas W

2010-06-01

In DSM-IV-TR, trichotillomania (TTM) is classified as an impulse control disorder (not classified elsewhere), skin picking lacks its own diagnostic category (but might be diagnosed as an impulse control disorder not otherwise specified), and stereotypic movement disorder is classified as a disorder usually first diagnosed in infancy, childhood, or adolescence. ICD-10 classifies TTM as a habit and impulse disorder, and includes stereotyped movement disorders in a section on other behavioral and emotional disorders with onset usually occurring in childhood and adolescence. This article provides a focused review of nosological issues relevant to DSM-V, given recent empirical findings. This review presents a number of options and preliminary recommendations to be considered for DSM-V: (1) Although TTM fits optimally into a category of body-focused repetitive behavioral disorders, in a nosology comprised of relatively few major categories it fits best within a category of motoric obsessive-compulsive spectrum disorders, (2) available evidence does not support continuing to include (current) diagnostic criteria B and C for TTM in DSM-V, (3) the text for TTM should be updated to describe subtypes and forms of hair pulling, (4) there are persuasive reasons for referring to TTM as "hair pulling disorder (trichotillomania)," (5) diagnostic criteria for skin picking disorder should be included in DSM-V or in DSM-Vs Appendix of Criteria Sets Provided for Further Study, and (6) the diagnostic criteria for stereotypic movement disorder should be clarified and simplified, bringing them in line with those for hair pulling and skin picking disorder. (c) 2010 Wiley-Liss, Inc.

Robust intelligent sliding model control using recurrent cerebellar model articulation controller for uncertain nonlinear chaotic systems

International Nuclear Information System (INIS)

Peng Yafu

2009-01-01

In this paper, a robust intelligent sliding model control (RISMC) scheme using an adaptive recurrent cerebellar model articulation controller (RCMAC) is developed for a class of uncertain nonlinear chaotic systems. This RISMC system offers a design approach to drive the state trajectory to track a desired trajectory, and it is comprised of an adaptive RCMAC and a robust controller. The adaptive RCMAC is used to mimic an ideal sliding mode control (SMC) due to unknown system dynamics, and a robust controller is designed to recover the residual approximation error for guaranteeing the stable characteristic. Moreover, the Taylor linearization technique is employed to derive the linearized model of the RCMAC. The all adaptation laws of the RISMC system are derived based on the Lyapunov stability analysis and projection algorithm, so that the stability of the system can be guaranteed. Finally, the proposed RISMC system is applied to control a Van der Pol oscillator, a Genesio chaotic system and a Chua's chaotic circuit. The effectiveness of the proposed control scheme is verified by some simulation results with unknown system dynamics and existence of external disturbance. In addition, the advantages of the proposed RISMC are indicated in comparison with a SMC system

Autism Spectrum Disorders (Pervasive Developmental Disorders)

Science.gov (United States)

Strock, Margaret

2007-01-01

This booklet focuses on classic autism, pervasive developmental disorder not otherwise specified (PDD-NOS), and Asperger syndrome, with brief descriptions of Rett syndrome and childhood disintegrative disorder. The booklet describes possible indicators of autism spectrum disorders (ASD), their diagnosis, available aids, treatment options, adults…

Differential diagnosis of bipolar disorder and major depressive disorder.

Science.gov (United States)

Hirschfeld, R M

2014-12-01

Patients with bipolar disorder spend approximately half of their lives symptomatic and the majority of that time suffering from symptoms of depression, which complicates the accurate diagnosis of bipolar disorder. Challenges in the differential diagnosis of bipolar disorder and major depressive disorder are reviewed, and the clinical utility of several screening instruments is evaluated. The estimated lifetime prevalence of major depressive disorder (i.e., unipolar depression) is over 3 and one-half times that of bipolar spectrum disorders. The clinical presentation of a major depressive episode in a bipolar disorder patient does not differ substantially from that of a patient with major depressive disorder (unipolar depression). Therefore, it is not surprising that without proper screening and comprehensive evaluation many patients with bipolar disorder may be misdiagnosed with major depressive disorder (unipolar depression). In general, antidepressants have demonstrated little or no efficacy for depressive episodes associated with bipolar disorder, and treatment guidelines recommend using antidepressants only as an adjunct to mood stabilizers for patients with bipolar disorder. Thus, correct identification of bipolar disorder among patients who present with depression is critical for providing appropriate treatment and improving patient outcomes. Clinical characteristics indicative of bipolar disorder versus major depressive disorder identified in this review are based on group differences and may not apply to each individual patient. The overview of demographic and clinical characteristics provided by this review may help medical professionals distinguish between major depressive disorder and bipolar disorder. Several validated, easily administered screening instruments are available and can greatly improve the recognition of bipolar disorder in patients with depression. Copyright © 2014 Elsevier B.V. All rights reserved.

Clinical study of the relation of borderline personality disorder to Briquet's syndrome (hysteria), somatization disorder, antisocial personality disorder, and substance abuse disorders.

Science.gov (United States)

Hudziak, J J; Boffeli, T J; Kreisman, J J; Battaglia, M M; Stanger, C; Guze, S B; Kriesman, J J

1996-12-01

The criteria for borderline personality disorder seem to select patients with very high rates of Briquet's syndrome (hysteria), somatization disorder, antisocial personality disorder, and substance abuse disorders. This study was undertaken to determine whether systematic assessment of patients with borderline personality disorder would reveal characteristic features of that condition which would distinguish it from these other disorders. Eighty-seven white female patients (75 in St. Louis and 12 in Milan, Italy) who had borderline personality disorder according to both the DSM-III-R criteria and the Revised Diagnostic Interview for Borderlines were further examined with the DSM-III-R Checklist and the Perley-Guze Hysteria Checklist to determine their patterns of psychiatric comorbidity. Every patient had at least one additional DSM diagnosis. Patients in St. Louis and Milan averaged five and four additional diagnoses, respectively. Eighty-four percent of the patients in St. Louis met criteria for either somatization disorder, Briquet's syndrome, antisocial personality disorder, or substance abuse disorders. Patterns of comorbidity for panic (51%), generalized anxiety disorder (55%), and major depression (87%) in St. Louis were consistent with those in other studies. The data indicate that the boundaries for the borderline condition are not specific and identify a high percentage of patients with these other disorders. Furthermore, the comorbidity profiles closely resemble the psychiatric profiles of patients with these disorders. If the borderline syndrome is meant to include all of these disorders, its usefulness as a diagnosis is limited. Until the fundamental features of borderline personality disorder that distinguish it from the others are identified, it is recommended that clinicians carefully assess patients for these other diagnoses. Efforts should be made to change the borderline personality disorder criteria by shifting away from overlap with the

Speech-language pathologists' practices regarding assessment, analysis, target selection, intervention, and service delivery for children with speech sound disorders.

Science.gov (United States)

Mcleod, Sharynne; Baker, Elise

2014-01-01

A survey of 231 Australian speech-language pathologists (SLPs) was undertaken to describe practices regarding assessment, analysis, target selection, intervention, and service delivery for children with speech sound disorders (SSD). The participants typically worked in private practice, education, or community health settings and 67.6% had a waiting list for services. For each child, most of the SLPs spent 10-40 min in pre-assessment activities, 30-60 min undertaking face-to-face assessments, and 30-60 min completing paperwork after assessments. During an assessment SLPs typically conducted a parent interview, single-word speech sampling, collected a connected speech sample, and used informal tests. They also determined children's stimulability and estimated intelligibility. With multilingual children, informal assessment procedures and English-only tests were commonly used and SLPs relied on family members or interpreters to assist. Common analysis techniques included determination of phonological processes, substitutions-omissions-distortions-additions (SODA), and phonetic inventory. Participants placed high priority on selecting target sounds that were stimulable, early developing, and in error across all word positions and 60.3% felt very confident or confident selecting an appropriate intervention approach. Eight intervention approaches were frequently used: auditory discrimination, minimal pairs, cued articulation, phonological awareness, traditional articulation therapy, auditory bombardment, Nuffield Centre Dyspraxia Programme, and core vocabulary. Children typically received individual therapy with an SLP in a clinic setting. Parents often observed and participated in sessions and SLPs typically included siblings and grandparents in intervention sessions. Parent training and home programs were more frequently used than the group therapy. Two-thirds kept up-to-date by reading journal articles monthly or every 6 months. There were many similarities with

Thoracolumbar spine model with articulated ribcage for the prediction of dynamic spinal loading.

Science.gov (United States)

Ignasiak, Dominika; Dendorfer, Sebastian; Ferguson, Stephen J

2016-04-11

Musculoskeletal modeling offers an invaluable insight into the spine biomechanics. A better understanding of thoracic spine kinetics is essential for understanding disease processes and developing new prevention and treatment methods. Current models of the thoracic region are not designed for segmental load estimation, or do not include the complex construct of the ribcage, despite its potentially important role in load transmission. In this paper, we describe a numerical musculoskeletal model of the thoracolumbar spine with articulated ribcage, modeled as a system of individual vertebral segments, elastic elements and thoracic muscles, based on a previously established lumbar spine model and data from the literature. The inverse dynamics simulations of the model allow the prediction of spinal loading as well as costal joints kinetics and kinematics. The intradiscal pressure predicted by the model correlated well (R(2)=0.89) with reported intradiscal pressure measurements, providing a first validation of the model. The inclusion of the ribcage did not affect segmental force predictions when the thoracic spine did not perform motion. During thoracic motion tasks, the ribcage had an important influence on the predicted compressive forces and muscle activation patterns. The compressive forces were reduced by up to 32%, or distributed more evenly between thoracic vertebrae, when compared to the predictions of the model without ribcage, for mild thoracic flexion and hyperextension tasks, respectively. The presented musculoskeletal model provides a tool for investigating thoracic spine loading and load sharing between vertebral column and ribcage during dynamic activities. Further validation for specific applications is still necessary. Copyright © 2015 Elsevier Ltd. All rights reserved.

Machine learning in autistic spectrum disorder behavioral research: A review and ways forward.

Science.gov (United States)

Thabtah, Fadi

2018-02-13

Autistic Spectrum Disorder (ASD) is a mental disorder that retards acquisition of linguistic, communication, cognitive, and social skills and abilities. Despite being diagnosed with ASD, some individuals exhibit outstanding scholastic, non-academic, and artistic capabilities, in such cases posing a challenging task for scientists to provide answers. In the last few years, ASD has been investigated by social and computational intelligence scientists utilizing advanced technologies such as machine learning to improve diagnostic timing, precision, and quality. Machine learning is a multidisciplinary research topic that employs intelligent techniques to discover useful concealed patterns, which are utilized in prediction to improve decision making. Machine learning techniques such as support vector machines, decision trees, logistic regressions, and others, have been applied to datasets related to autism in order to construct predictive models. These models claim to enhance the ability of clinicians to provide robust diagnoses and prognoses of ASD. However, studies concerning the use of machine learning in ASD diagnosis and treatment suffer from conceptual, implementation, and data issues such as the way diagnostic codes are used, the type of feature selection employed, the evaluation measures chosen, and class imbalances in data among others. A more serious claim in recent studies is the development of a new method for ASD diagnoses based on machine learning. This article critically analyses these recent investigative studies on autism, not only articulating the aforementioned issues in these studies but also recommending paths forward that enhance machine learning use in ASD with respect to conceptualization, implementation, and data. Future studies concerning machine learning in autism research are greatly benefitted by such proposals.

Personality Disorders in patients with disorders in eating behaviors

Directory of Open Access Journals (Sweden)

Vanesa Carina Góngora

2016-02-01

Full Text Available The interest for the systematic study of personality disorder in patients with eating disorders starts in 1980 with the edition of the DSM III multiaxial classification system. Since then, several publications have been focused on the prevalence and the effect on treatment of personality disorders in bulimic and anorexic patients. These researches showed inconsistent results due to conceptual and methodological divergences. In this paper, the more relevant findings of these studies are presented and the possible sources of discrepancy are analyzed. In general, there is a moderate comorbidity between personality disorders and eating disorders. The most frequent disorders are borderline, histrionic, obsessive-compulsive, dependent and avoidant personality disorders. Borderline and histrionic personality disorders are more frequently associated with bulimia, whereas avoidant and obsessive- compulsive personality disorders are more characteristic of anorexia nervosa. Nevertheless, the effect of the relationship between eating disorders and personality disorders in treatment remains uncertain, giving raise to several controversies and researches. 

The Role of Perception in the Typology of Geminate Consonants: Effects of Manner of Articulation, Segmental Environment, Position, and Stress.

Science.gov (United States)

Dmitrieva, Olga

2018-03-01

The present study seeks to answer the question of whether consonant duration is perceived differently across consonants of different manners of articulation and in different contextual environments and whether such differences may be related to the typology of geminates. The results of the cross-linguistic identification experiment suggest higher perceptual acuity in labeling short and long consonants in sonorants than in obstruents. Duration categories were also more consistently and clearly labeled in the intervocalic than in the preconsonantal environment, in the word-initial than in the word-final position, and after stressed vowels than between unstressed vowels. These perceptual asymmetries are in line with some typological tendencies, such as the cross-linguistic preference for intervocalic and post-stress geminates, but contradict other proposed cross-linguistic patterns, such as the preference for obstruent geminates and the abundance of word-final geminates.

[Obsessive-compulsive disorder. A hidden disorder].

Science.gov (United States)

Haraldsson, Magnús

2015-02-01

Obsessive-compulsive disorder is a common and often chronic psychiatric illness that significantly interferes with the patient´s functioning and quality of life. The disorder is characterized by excessive intrusive and inappropriate anxiety evoking thoughts as well as time consuming compulsions that cause significant impairment and distress. The symptoms are often accompanied by shame and guilt and the knowledge of the general public and professional community about the disorder is limited. Hence it is frequently misdiagnosed or diagnosed late. There are indications that the disorder is hereditary and that neurobiological processes are involved in its pathophysiology. Several psychological theories about the causes of obsessive-compulsive disorder are supported by empirical evidence. Evidence based treatment is either with serotoninergic medications or cognitive behavioral therapy, particularly a form of behavioral therapy called exposure response prevention. Better treatment options are needed because almost a third of people with obsessive-compulsive disorder respond inadequatly to treatment. In this review article two cases of obsessive-compulsive disorder are presented. The former case is a young man with typical symptoms that respond well to treatment and the latter is a middle aged lady with severe treatment resistant symptoms. She underwent stereotactic implantation of electrodes and received deep brain stimulation, which is an experimental treatment for severe obsessive-compulsive disorder that does not respond to any conventional treatment. Landspitali University Hospital, Division of Psychiatry. Faculty of Medicine, University of Iceland.

A State Articulated Instructional Objectives Guide for Occupational Education Programs. State Pilot Model for Drafting (Graphic Communications). Part I--Basic. Part II--Specialty Programs. Section A (Mechanical Drafting and Design). Section B (Architectural Drafting and Design).

Science.gov (United States)

North Carolina State Dept. of Community Colleges, Raleigh.

A two-part articulation instructional objective guide for drafting (graphic communications) is provided. Part I contains summary information on seven blocks (courses) of instruction. They are as follow: introduction; basic technical drafting; problem solving in graphics; reproduction processes; freehand drawing and sketching; graphics composition;…

Schizoaffective disorder

Science.gov (United States)

... or do not improve with treatment Thoughts of suicide or of harming others Alternative Names Mood disorder - schizoaffective disorder; Psychosis - schizoaffective disorder Images Schizoaffective disorder ...

Co-occurrence of dissociative identity disorder and borderline personality disorder.

Science.gov (United States)

Ross, Colin A; Ferrell, Lynn; Schroeder, Elizabeth

2014-01-01

The literature indicates that, among individuals with borderline personality disorder, pathological dissociation correlates with a wide range of impairments and difficulties in psychological function. It also predicts a poorer response to dialectical behavior therapy for borderline personality disorder. We hypothesized that (a) dissociative identity disorder commonly co-occurs with borderline personality disorder and vice versa, and (b) individuals who meet criteria for both disorders have more comorbidity and trauma than individuals who meet criteria for only 1 disorder. We interviewed a sample of inpatients in a hospital trauma program using 3 measures of dissociation. The most symptomatic group was those participants who met criteria for both borderline personality disorder and dissociative identity disorder on the Dissociative Disorders Interview Schedule, followed by those who met criteria for dissociative identity disorder only, then those with borderline personality disorder only, and finally those with neither disorder. Greater attention should be paid to the relationship between borderline personality disorder and dissociative identity disorder.

Treatment of borderline personality disorder and co-occurring anxiety disorders

Science.gov (United States)

Valenstein, Helen R.

2013-01-01

Anxiety disorders are highly prevalent among individuals with borderline personality disorder, with comorbidity rates of up to 90%. Anxiety disorders have been found to reduce the likelihood of achieving remission from borderline personality disorder over time and to increase the risk of suicide and self-injury in this population. Evidence-based treatments for borderline personality disorder have not sufficiently focused on targeting anxiety disorders, and their effects on these disorders are either limited or unknown. Conversely, evidence-based treatments for anxiety disorders typically exclude suicidal, self-injuring, and seriously comorbid patients, thereby limiting their generalizability to individuals with borderline personality disorder. To address these limitations, recent research has begun to emerge focused on developing and evaluating treatments for individuals with co-occurring borderline personality disorder and anxiety disorders, specifically posttraumatic stress disorder (PTSD), with promising initial results. However, there is a need for additional research in this area, particularly studies evaluating the treatment of anxiety disorders among high-risk and complex borderline personality disorder patients. PMID:23710329

Attention-deficit hyperactivity disorder in bipolar disorder

OpenAIRE

Rydén, Eleonore

2010-01-01

Attention-deficit hyperactivity disorder (ADHD) is a developmental disorder, i.e., it is by definition present from childhood. The main features characterizing ADHD are the difficulties to regulate attention, activity level, and impulses. The hallmark of bipolar disorder is episodic mood alterations with restitution between episodes. Although debut in childhood may occur, bipolar disorder typically debuts in late adolescence or early adulthood. The overarching aim with this ...

Operative treatment of hallux valgus – the effect of three osteotomy types on the first metatarsal, hallux valgus and metatarsal distal articulation angles

Directory of Open Access Journals (Sweden)

Andrej Prlja

2007-11-01

Full Text Available Background: Modern approach to hallux valgus deformations enables not only the stage treatment considering the magnitude of the deformity but also the objective evaluation of the results.We investigated the influence of the three most commonly used osteotomies on three most common demonstrative factors, especially proximal osteotomy on the distal metatasal articulation angle.Methods: Three groups were created regarding the magnitude of the deformation. X rays of 15 corrections in each group were reviewed (45 cases, 34 women, 2 men. Each group was treated with only one of the three osteotomies: distal chevron osteotomy (Ch, distal chevron osteotomy with medial edge (ChM and proximal osteotomy (POT. The effect on the three most comonly used demonstrative factors were noted: first intermetatarsal angle (IM, hallux valgus angle (HV, distal metatarsal articulation angle (DMAA. The age and the demonstrative factors were compared pre- and postoperative, in and between the groups.Results: The correct, graded selection of the patients for the treatment was confirmed and false negative results excluded. Preoperative values of HV and DMAA are significantely different between three groups (p < 0.001 while IM are not (p = 0.118. Postoperative values of the HV and IM are significantely lower in all three groups (p < 0.001. DMAA is statisticaly different (positive postoperatively in the ChM group (p < 0.001 but not in the Ch and POT groups (P = 0.398; p = 0.456.Conclusions: Modern approach on hallux valgus deformations enables stage treatment and objective evaluation of the results what is demonstrated by the effect of the osteotomies on the demonstrative factors. Further investigations of the factors not yet considered or even unknown are also possible as shown on the example of the difference between the expected and measured effect of POT on DMAA.

[SOUND CONTACTS] Aspects of touch and timbre in piano performance. The effects of key velocity, articulation and temporal duration on sound

Directory of Open Access Journals (Sweden)

Eleonora Kojucharov

2015-02-01

Full Text Available The concept of touch in piano pedagogy is generally described by using abstract adjectives often linked to imagination, leading to a blurred and controversial definition of the term touch, often confused with timbre. In the last decades, new data-collection technologies and MIDI-based analysis allowed researchers to measure key-control specific features in timbre nuances modeling [Goebl-Bresin-Galembo 2004; Bernays-Traube 2011; 2013]. Within the field of piano performance, the present study attempts to objectively describe piano touch and the means with which it can be controlled, by: (1 providing elements for an adequate scientific understanding of touch; (2 clarifying the relationship between touch and timbre; (3 defining the extent to which the parameters of key-velocity, tempo and articulation vary as a function of different types of touch.

Proximal femoral resection and articulated hip distraction with an external fixator for the treatment of painful spastic hip dislocations in pediatric patients with spastic quadriplegia.

Science.gov (United States)

Lampropulos, Mario; Puigdevall, Miguel H; Zapozko, Daniel; Malvárez, Héctor R

2008-01-01

We describe the results obtained with an alternative method of treatment for spastic painful hip dislocations in nonambulatory patients, which consists of a proximal femoral resection with capsular interposition arthroplasty, and the addition of a hinged external fixator for postoperative articulated hip distraction to allow for an immediate upright position and the ability to sit in a wheelchair. We performed this technique in three patients (four hips) with a mean age at the time of surgery of 15 years. Postoperatively, clinical improvement was observed in all four hips, with respect to pain relief, sitting tolerance, perineal care and functional range of motion.

Speech motor coordination in Dutch-speaking children with DAS studied with EMMA

NARCIS (Netherlands)

Nijland, L.; Maassen, B.A.M.; Hulstijn, W.; Peters, H.F.M.

2004-01-01

Developmental apraxia of speech (DAS) is generally classified as a 'speech motor' disorder. Direct measurement of articulatory movement is, however, virtually non-existent. In the present study we investigated the coordination between articulators in children with DAS using kinematic measurements.

[Comorbidity of eating disorders and bipolar affective disorders].

Science.gov (United States)

Kamińska, Katarzyna; Rybakowski, Filip

2006-01-01

Eating disorders--anorexia nervosa, bulimia nervosa and eating disorders not otherwise specified (EDNOS) occur usually in young females. The significant pathogenic differences between patients who only restrict food, and patients with binge eating and compensatory behaviours, such as vomiting and purging were described. The prevalence of bipolar affective disorders--especially bipolar II and bipolar spectrum disorders (BS) may reach 5% in the general population. About half of the depressive episodes are associated with a "mild" bipolar disorder, and such a diagnosis is suggested by impulsivity and mood-instability. Previously, majority of research on the comorbidity between eating and affective disorders focused on depressive symptomatology, however difficulties in the reliable assessment of hypomania may obfuscate the estimation of the co-occurrence of eating disorders with BS. Epidemiological studies suggest the association between BS and eating disorders with binge episodes (bulimia nervosa, anorexia- bulimic type and EDNOS with binge episodes). Co-occurrence of such disorders with depressive symptoms probably suggests the diagnosis of BS, not recurrent depression. Bulimic behaviours, impulsivity and affective disorders might be related to the impairment of the serotonergic neurotransmission, which may result from the genetic vulnerability and early life trauma. Currently, the first-line pharmacological treatment of co-occurring eating disorders with binge episodes and BS are selective serotonin reuptake inhibitors. However in some cases, the use of mood-stabilising agents as monotherapy or in combination with serotonergic drugs may be helpful.

[Vocational Training and Job Placement for People with Autism Spectrum Disorders in the Business Sector].

Science.gov (United States)

Suzuki, Keita

2015-01-01

Kaien was founded in 2009 in order to help people with autism spectrum disorders work by leveraging their unique capabilities. Our four offices are all located in the Tokyo Metropolitan Area. Our services include job training and placement for adults, career awareness programs for college students, and career experience programs for teens with autism spectrum disorders. Currently, we help over 100 people on a daily basis. We believe that two factors play important roles when we provide job training programs for people. Firstly, they usually find it difficult to identify their occupational "fit" by themselves due to their weakness regarding imagination. It is not a good idea to convince them only through counseling. Rather, when we take their weaknesses into consideration, multiple trial sessions in the work environment are key because even people without imagination can understand their occupational "fit" once they try. The other aspect is to articulate communication as much as possible. In this case, it is also true that words are not enough to help people fully develop the communication skills necessary in an office. Thus, our trainers intervene very frequently in the job programs in order for trainees to get feedback at the right time on the spot. In other words, our five-year experience at Kaien has revealed that our "Here and Now" approach in the quasi-work environment is the most effective way. Most of our trainers do not have medical or social welfare backgrounds. This fact has revealed huge possibilities when it comes to helping people with autism spectrum disorders to get a job. That is, in many cases, autism experts may not be mandatory, and supervisors or colleagues, who work with people with autism every day, can become "job supporters" with a little knowledge and some training. Some estimates indicate that the prevalence rate of autism spectrum disorders is above one in one hundred, and might be as high as five or six percent. This number is daunting

Anxiety Disorders and the Family: How families affect psychiatric disorders

OpenAIRE

Hunsley, John

1991-01-01

Family functioning and anxiety disorders, the most prevalent forms of psychiatric disorder, influence one another. The empirical literature on family studies of anxiety disorder (ie, aggregration of disorders within families), on parent-child relationships and anxiety disorders, and on marriage and anxiety disorders is reviewed. Finally, the challenges for patients and their families of post-traumatic stress disorder are discussed.

Conduct disorders as a result of specific learning disorders

OpenAIRE

VOKROJOVÁ, Nela

2012-01-01

This thesis focuses on relationship between specific learning disorders and conduct disorders in puberty. The theoretical part explains the basic terms apearing in the thesis such as specific learning disorders, conduct disorders, puberty and prevention of conduct disorder formation. It presents Czech and foreign research which have already been done in this and related areas. The empirical part uses a quantitative method to measure anxiety and occurrence of conduct disorders in second grade ...

The relationship between borderline personality disorder and bipolar disorder

Science.gov (United States)

Zimmerman, Mark; Morgan, Theresa A.

2013-01-01

It is clinically important to recognize both bipolar disorder and borderline personality disorder (BPD) in patients seeking treatment for depression, and it is important to distinguish between the two. Research considering whether BPD should be considered part of a bipolar spectrum reaches differing conclusions. We reviewed the most studied question on the relationship between BPD and bipolar disorder: their diagnostic concordance. Across studies, approximately 10% of patients with BPD had bipolar I disorder and another 10% had bipolar II disorder. Likewise, approximately 20% of bipolar II patients were diagnosed with BPD, though only 10% of bipolar I patients were diagnosed with BPD. While the comorbidity rates are substantial, each disorder is nontheless diagnosed in the absence of the other in the vast majority of cases (80% to 90%). In studies examining personality disorders broadly, other personality disorders were more commonly diagnosed in bipolar patients than was BPD. Likewise, the converse is also true: other axis I disorders such as major depression, substance abuse, and post-traumatic stress disorder are also more commonly diagnosed in patients with BPD than is bipolar disorder. These findings challenge the notion that BPD is part of the bipolar spectrum. PMID:24174890

Somatic symptom disorder

Science.gov (United States)

... related disorders; Somatization disorder; Somatiform disorders; Briquet syndrome; Illness anxiety disorder References American Psychiatric Association. Somatic symptom disorder. Diagnostic and Statistical Manual of Mental Disorders . ...

The continuum between Bipolar Disorder and Borderline Personality Disorder.

Science.gov (United States)

Elisei, Sandro; Anastasi, Serena; Verdolini, Norma

2012-09-01

Several studies have been carried out regarding the possible overlap between Bipolar Disorder and borderline personality disorder. Up to now, it is not possible to provide a definitive picture. In fact, there is currently significant debate about the relationship between Borderline Personality Disorder and Bipolar Disorder. MEDLINE searches were performed to identify the latest studies of these disorders, considering psychodynamic aspects. Bipolar disorder and borderline personality disorder share common clinical features, namely affective instability and impulsivity which however differ in quality. Consequently, to better understand these aspects, it is necessary to trace the stages of childhood psychological development. It has been claimed that Bipolar Disorder Type II can be divided into two subtypes: one stable and functional between episodes and one unstable between episodes which is related to Borderline Personality Disorder. However, better diagnostic theories, psychiatrist's empathy and patience remain the essential tool to understand and to face human suffering.

Current Issues in the Diagnosis of Attention Deficit Hyperactivity Disorder, Oppositional Defiant Disorder, and Conduct Disorder

Science.gov (United States)

Frick, Paul J.; Nigg, Joel T.

2015-01-01

This review evaluates the diagnostic criteria for three of the most common disorders for which children and adolescents are referred for mental health treatment: attention deficit hyperactivity disorder (ADHD), oppositional defiant disorder (ODD), and conduct disorder (CD). Although research supports the validity and clinical utility of these disorders, several issues are highlighted that could enhance the current diagnostic criteria. For ADHD, defining the core features of the disorder and its fit with other disorders, enhancing the validity of the criteria through the lifespan, considering alternative ways to form subtypes of the disorder, and modifying the age-of-onset criterion are discussed relative to the current diagnostic criteria. For ODD, eliminating the exclusionary criteria of CD, recognizing important symptom domains within the disorder, and using the cross-situational pervasiveness of the disorder as an index of severity are highlighted as important issues for improving classification. Finally, for CD, enhancing the current subtypes related to age of onset and integrating callous-unemotional traits into the diagnostic criteria are identified as key issues for improving classification. PMID:22035245

Current issues in the diagnosis of attention deficit hyperactivity disorder, oppositional defiant disorder, and conduct disorder.

Science.gov (United States)

Frick, Paul J; Nigg, Joel T

2012-01-01

This review evaluates the diagnostic criteria for three of the most common disorders for which children and adolescents are referred for mental health treatment: attention deficit hyperactivity disorder (ADHD), oppositional defiant disorder (ODD), and conduct disorder (CD). Although research supports the validity and clinical utility of these disorders, several issues are highlighted that could enhance the current diagnostic criteria. For ADHD, defining the core features of the disorder and its fit with other disorders, enhancing the validity of the criteria through the lifespan, considering alternative ways to form subtypes of the disorder, and modifying the age-of-onset criterion are discussed relative to the current diagnostic criteria. For ODD, eliminating the exclusionary criteria of CD, recognizing important symptom domains within the disorder, and using the cross-situational pervasiveness of the disorder as an index of severity are highlighted as important issues for improving classification. Finally, for CD, enhancing the current subtypes related to age of onset and integrating callous-unemotional traits into the diagnostic criteria are identified as key issues for improving classification.

Speech rate in Parkinson's disease: A controlled study.

Science.gov (United States)

Martínez-Sánchez, F; Meilán, J J G; Carro, J; Gómez Íñiguez, C; Millian-Morell, L; Pujante Valverde, I M; López-Alburquerque, T; López, D E

2016-09-01

Speech disturbances will affect most patients with Parkinson's disease (PD) over the course of the disease. The origin and severity of these symptoms are of clinical and diagnostic interest. To evaluate the clinical pattern of speech impairment in PD patients and identify significant differences in speech rate and articulation compared to control subjects. Speech rate and articulation in a reading task were measured using an automatic analytical method. A total of 39 PD patients in the 'on' state and 45 age-and sex-matched asymptomatic controls participated in the study. None of the patients experienced dyskinesias or motor fluctuations during the test. The patients with PD displayed a significant reduction in speech and articulation rates; there were no significant correlations between the studied speech parameters and patient characteristics such as L-dopa dose, duration of the disorder, age, and UPDRS III scores and Hoehn & Yahr scales. Patients with PD show a characteristic pattern of declining speech rate. These results suggest that in PD, disfluencies are the result of the movement disorder affecting the physiology of speech production systems. Copyright © 2014 Sociedad Española de Neurología. Publicado por Elsevier España, S.L.U. All rights reserved.

A self-centering active probing technique for kinematic parameter identification and verification of articulated arm coordinate measuring machines

International Nuclear Information System (INIS)

Santolaria, J; Brau, A; Velázquez, J; Aguilar, J J

2010-01-01

A crucial task in the procedure of identifying the parameters of a kinematic model of an articulated arm coordinate measuring machine (AACMM) or robot arm is the process of capturing data. In this paper a capturing data method is analyzed using a self-centering active probe, which drastically reduces the capture time and the required number of positions of the gauge as compared to the usual standard and manufacturer methods. The mathematical models of the self-centering active probe and AACMM are explained, as well as the mathematical model that links the AACMM global reference system to the probe reference system. We present a self-calibration method that will allow us to determine a homogeneous transformation matrix that relates the probe's reference system to the AACMM last reference system from the probing of a single sphere. In addition, a comparison between a self-centering passive probe and self-centering active probe is carried out to show the advantages of the latter in the procedures of kinematic parameter identification and verification of the AACMM

Understanding the notion of function and articulation of semiotic records that represent between students entering a program Engineering

Directory of Open Access Journals (Sweden)

Raúl Prada-Núñez

2016-08-01

Full Text Available This study aims to assess the understanding of the notion of function and the ability to articulate different semiotic registers for representation by new students in the university in Colombia. Immediate context is taken as the Faculty of Engineering at a public university. Epistemologically the study is based on symbolic interaction by analyzing the meanings that students attributed to this mathematical concept when addressing problem solving. The methodology, therefore, is qualitatively and use of theoretical coding is done. For analysis of the results it has been applied grounded theory with a structured approach. The information generated by this study corresponds to a test that showed students two graphic representations with the intent to identify which of them was a function, besides which should argue their response. Altogether 86 arguments around the concept are analyzed. Data analysis was done through atlas.ti 7.0 software. The system allows a glimpse of emerging categories the following findings: conceptual deficiencies, diversity in conceptual approaches, conceptual referents, semiotic representations, and finally highlight the various conceptual variations.

Self-stigma in borderline personality disorder – cross-sectional comparison with schizophrenia spectrum disorder, major depressive disorder, and anxiety disorders

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Grambal A

2016-09-01

Full Text Available Ales Grambal,1 Jan Prasko,1 Dana Kamaradova,1 Klara Latalova,1 Michaela Holubova,1,2 Marketa Marackova,1 Marie Ociskova,1 Milos Slepecky3 1Faculty of Medicine and Dentistry, Department of Psychiatry, Palacky University Olomouc, University Hospital Olomouc, Olomouc, 2Department of Psychiatry, Hospital Liberec, Liberec, Czech Republic; 3Faculty of Social Science and Health Care, Department of Psychology Sciences, Constantine the Philosopher University, Nitra, Slovak Republic Introduction: Self-stigma arises from one’s acceptance of societal prejudices and is common in psychiatric patients. This investigation compares the self-stigma of a sample of patients with borderline personality disorder (BPD, schizophrenia spectrum disorder (SCH, major depressive disorder (MDD, bipolar affective disorder (BAD, and anxiety disorders (AD and explores of the self-stigma with the subjective and objective measures of the severity of the disorder and demographic factors. Methods: The total of 184 inpatients admitted to the psychotherapeutic department diagnosed with BPD, SCH, MDD, BAP, and AD were compared on the internalized stigma of mental illness (ISMI scale. The ISMI-total score was correlated with the subjective and objective evaluation of the disorder severity (clinical global impression, and clinical and demographic factors. Results: The self-stigma levels were statistically significantly different among the diagnostic groups (BPD 71.15±14.74; SCH 63.2±13.27; MDD 64.09±12.2; BAD 62.0±14.21; AD 57.62±15.85; one-way analysis of variance: F=8.698, df=183; P<0.005. However after applying the Bonferroni’s multiple comparison test, the only significant difference was between the BPD patients and the patients with AD (P<0.001. Stepwise regression analysis showed that the strongest factors connected with the higher level of self-stigma were being without partner, the number of hospitalization, and the severity of the disorder. Conclusion: The BPD patients

[Non-autistic pervasive developmental disorders: Rett syndrome, disintegrative disorder and pervasive developmental disorder not otherwise specified

NARCIS (Netherlands)

Mercadante, M.T.; Gaag, R.J. van der; Schwartzman, J.S.

2006-01-01

The category "Pervasive Developmental Disorders" includes autistic disorder, Asperger's syndrome, Rett's syndrome, childhood disintegrative disorder, and a residual category, named pervasive developmental disorder not otherwise specified. In this review, Rett's syndrome and childhood disintegrative

Multimodal Speech Capture System for Speech Rehabilitation and Learning.

Science.gov (United States)

Sebkhi, Nordine; Desai, Dhyey; Islam, Mohammad; Lu, Jun; Wilson, Kimberly; Ghovanloo, Maysam

2017-11-01

Speech-language pathologists (SLPs) are trained to correct articulation of people diagnosed with motor speech disorders by analyzing articulators' motion and assessing speech outcome while patients speak. To assist SLPs in this task, we are presenting the multimodal speech capture system (MSCS) that records and displays kinematics of key speech articulators, the tongue and lips, along with voice, using unobtrusive methods. Collected speech modalities, tongue motion, lips gestures, and voice are visualized not only in real-time to provide patients with instant feedback but also offline to allow SLPs to perform post-analysis of articulators' motion, particularly the tongue, with its prominent but hardly visible role in articulation. We describe the MSCS hardware and software components, and demonstrate its basic visualization capabilities by a healthy individual repeating the words "Hello World." A proof-of-concept prototype has been successfully developed for this purpose, and will be used in future clinical studies to evaluate its potential impact on accelerating speech rehabilitation by enabling patients to speak naturally. Pattern matching algorithms to be applied to the collected data can provide patients with quantitative and objective feedback on their speech performance, unlike current methods that are mostly subjective, and may vary from one SLP to another.

Major depressive disorder, panic disorder, and post-traumatic stress disorder in Korean subway drivers.

Science.gov (United States)

Kim, Hyoung-Ryoul; Yim, Hyeon Woo; Jo, Sun-Jin; Choi, Bongkyoo; Jeong, Seung Hee; Lee, Kang Sook; Park, Jong-Ik; Chang, Sung Man

2013-05-01

The purposes of this study are to investigate the prevalence of major depressive disorder, panic disorder, and post-traumatic stress disorder (PTSD) in Korean subway drivers, and find the association between these disorders and the drivers' person-under-train (PUT) experiences. A total of 826 subway drivers who participated in a cross-sectional work and health survey were included for this study. The Korean version of the Composite International Diagnostic Interview 2.1 was applied to assess major depressive disorder, panic disorder, and PTSD. The date of PUT, whether victim died, and how many PUTs the drivers experienced were asked using a structured questionnaire. The standardized prevalence ratios (SPRs) for lifetime prevalence of panic disorder and PTSD in subway drivers were 13.3 (95 % confidence interval [CI] 6.6-22.4) and 2.1 (95 % CI 1.1-3.4), respectively. In lifetime prevalence, after adjusting for age, education, income, and working career, the drivers who experienced PUT had significantly higher risks for panic disorder (odds ratio [OR] = 4.2, 95 % CI 1.2-16.6) and PTSD (OR = 4.4, 95 % CI 1.3-16.4). In 1-year prevalence, the drivers who experienced PUT had a significantly higher risk for PTSD (OR = 11.7, 95 % CI 1.9-225.8). There was no significant value of SPR and OR in major depressive disorder. This study suggests that Korean subway drivers are at higher risk for panic disorder and PTSD compared to the general population, and PUT experience is associated with panic disorder and PTSD. Drivers who have experienced PUT should be treated quickly, sympathetically, and sensitively by a psychological professional and their colleagues, so they can return to work soon.

Eating disorders in children: is avoidant-restrictive food intake disorder a feeding disorder or an eating disorder and what are the implications for treatment?

Science.gov (United States)

Kennedy, Grace A; Wick, Madeline R; Keel, Pamela K

2018-01-01

Avoidant-restrictive food intake disorder (ARFID) is a current diagnosis in the "Feeding and Eating Disorders" section of the Diagnostic and Statistical Manual of Mental Disorders (fifth edition) and captures a heterogeneous presentation of eating disturbances. In recent years, ARFID has been studied primarily within the context of eating disorders despite having historical roots as a feeding disorder. The following review examines ARFID's similarities with and differences from feeding disorders and eating disorders, focusing on research published within the last three years. Implications of this differentiation for treatment are discussed.

What governs the transition to a sustainable hydrogen economy? Articulating the relationship between technologies and political institutions

International Nuclear Information System (INIS)

Hisschemoeller, Matthijs; Bode, Ries; Kerkhof, Marleen van de

2006-01-01

There is a lack of integrated knowledge on the transition to a sustainable energy system. The paper focuses on the relationship between technologies and institutions in the field of hydrogen from the perspective of political theory. The paper unfolds four paradigms of governance: 'Governance by policy networking', Governance by government', 'Governance by corporate business', and 'Governance by challenge', and looks into the major line of argument in support of these paradigms and into their possible bias with respect to hydrogen options. Each of these paradigms reveals an institutional bias in that it articulates specific opportunities for collaboration and competition in order to stimulate the transition to a sustainable hydrogen economy. The paper makes the observation that there is a compelling need to reframe fashionable discourse such as the necessary shift from government to governance or from government to market. Instead, specific questions with respect to the impact of guiding policy frameworks on innovation will highlight that neither 'neutral' nor 'optimal' frameworks for policy making exist, where competing hydrogen options are at stake. The identification of paradigms of governance maybe considered a methodological device for (participator) policy analysis

Motor skills, haptic perception and social abilities in children with mild speech disorders.

Science.gov (United States)

Müürsepp, Iti; Aibast, Herje; Gapeyeva, Helena; Pääsuke, Mati

2012-02-01

The aim of the study was to evaluate motor skills, haptic object recognition and social interaction in 5-year-old children with mild specific expressive language impairment (expressive-SLI) and articulation disorder (AD) in comparison of age- and gender matched healthy children. Twenty nine children (23 boys and 6 girls) with expressive-SLI, 27 children (20 boys and 7 girls) with AD and 30 children (23 boys and 7 girls) with typically developing language as controls participated in our study. The children were examined for manual dexterity, ball skills, static and dynamic balance by M-ABC test, haptic object recognition and for social interaction by questionnaire completed by teachers. Children with mild expressive-SLI demonstrated significantly poorer results in all subtests of motor skills (psocial interaction (p0.05) in measured parameters between children with AD and controls. Children with expressive-SLI performed considerably poorer compared to AD group in balance subtest (psocial interaction are considerably more affected than in children with AD. Although motor difficulties in speech production are prevalent in AD, it is localised and does not involve children's general motor skills, haptic perception or social interaction. Copyright © 2011 The Japanese Society of Child Neurology. Published by Elsevier B.V. All rights reserved.

The Relationship between Concurrent Substance Use Disorders and Eating Disorders with Personality Disorders

Directory of Open Access Journals (Sweden)

Christine Courbasson

2009-07-01

Full Text Available Objective: The current pilot study investigated whether patients with concurrent substance use disorders and eating disorders (SUD and ED who experienced a reduction in SUD and ED symptoms following treatment for SUD and ED also experienced a reduction in personality disorder (PD symptoms. Method: Twenty patients with SUD and ED and PD were assessed pre and post treatment using clinical interviews, self-report questionnaires, and a therapist questionnaire on DSM-IV-TR symptoms for PD. Results: Symptoms for the personality disorders were reduced following treatment. This reduction was correlated with a decrease in the number of symptoms of ED at post treatment. Discussion: Chronic concurrent SUD and ED may make it difficult to separate PD symptoms from co-occurring disorders. Many features attributed to PDs may be reduced when problematic substance use and disordered eating are addressed, a fact that may increase clinician and patients’optimism about therapeutic change.

A phonological analysis of the expressive and receptive articulatory difficulties of an aphasic with apraxia of speech: A case study

Directory of Open Access Journals (Sweden)

Aura Kagan

1977-11-01

Full Text Available The expressive and receptive phonological errors of an aphasic subject with mild apraxia of speech were analysed in terms of a distinctive feature framework. The results indicated that errors could be characterized linguistically and that such information could be of therapeutic significance. The relationship between articulation problems and ability to discriminate phonemes was investigated. Although no direct relationship was found, discrimination errors followed linguistic trends demonstrated in the articulation errors. The findings of this study suggest that the traditional idea of apraxia as a non-linguistic and purely motor disorder needs re-examination.

Bertolotti's syndrome: a case report.

Science.gov (United States)

Mitra, Raj; Carlisle, Mark

2009-01-01

A case report and literature review is presented. To review relevant data for the management of Bertolotti's syndrome and to determine whether the transverse process-ilium articulation may be a pain generator. Bertolotti's syndrome is associated with axial low back pain secondary to arthritic changes; the pain generator in the disorder is unclear. We present a case report of symptomatic Bertolotti's syndrome managed with intra-articular steroid injections. A patient with Bertolotti's syndrome had significant relief of axial pain after steroid injection of the ilium-transverse process articulation. Steroid therapy may be a non-surgical alternative for the treatment of symptomatic Bertolotti's syndrome.

Paediatric Anxiety Disorders

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Beena Johnson

2017-07-01

Full Text Available Anxiety disorders are highly prevalent among children and are associated with serious morbidity. Lifetime prevalence of paediatric anxiety disorders is about fifteen percent. Social phobia, generalized anxiety disorder and separation anxiety disorder are included in the triad of paediatric anxiety disorders. Specific phobia, obsessive compulsive disorder and post-traumatic stress disorder are also commonly seen in children. Overprotection by parents, parental death or separation, female sex, low educational status, family history of anxiety disorder, financial stress in family and adverse childhood experiences are risk factors for the development of anxiety disorders. If not diagnosed and managed at the earliest, paediatric anxiety disorders can cause life threatening problems in the future. Hence early and scientific management of anxiety disorders is essential. Cognitive behavioural therapy is the effective evidence based treatment for paediatric anxiety disorders.

Arthritic disorders

International Nuclear Information System (INIS)

Rowe, L.J.; Yochum, T.R.

1987-01-01

Arthritis has the distinction of being the foremost crippler in the United States. Arthritis costs the American economy more than $14 billion yearly and affects one in every seven people. The most prevalent types are osteoarthritis (degenerative joint disease), rheumatoid arthritis, lupus erythematosus, ankylosing spondylitis, gout, juvenile rheumatoid arthritis, and scleroderma. The role of radiology in the diagnosis of these joint diseases is undisputed. A number of diagnostic imaging modalities, including arthrograms, arthroscopy, isotopic scans, and even computerized tomography can be utilized in the evaluation of these joint abnormalities; however, it is the noncontrast radiograph which is usually the first and most extensively utilized method. Proper inspection and interpretation of the visualized articulations frequently renders important diagnostic information that otherwise would remain unrecognized and lead to incorrect diagnosis and treatment regimes. This article discusses the types of arthritis

Three-dimensional repositioning accuracy of semiadjustable articulator cast mounting systems.

Science.gov (United States)

Tan, Ming Yi; Ung, Justina Youlin; Low, Ada Hui Yin; Tan, En En; Tan, Keson Beng Choon

2014-10-01

In spite of its importance in prosthesis precision and quality, the 3-dimensional repositioning accuracy of cast mounting systems has not been reported in detail. The purpose of this study was to quantify the 3-dimensional repositioning accuracy of 6 selected cast mounting systems. Five magnetic mounting systems were compared with a conventional screw-on system. Six systems on 3 semiadjustable articulators were evaluated: Denar Mark II with conventional screw-on mounting plates (DENSCR) and magnetic mounting system with converter plates (DENCON); Denar Mark 330 with in-built magnetic mounting system (DENMAG) and disposable mounting plates; and Artex CP with blue (ARTBLU), white (ARTWHI), and black (ARTBLA) magnetic mounting plates. Test casts with 3 high-precision ceramic ball bearings at the mandibular central incisor (Point I) and the right and left second molar (Point R; Point L) positions were mounted on 5 mounting plates (n=5) for all 6 systems. Each cast was repositioned 10 times by 4 operators in random order. Nine linear (Ix, Iy, Iz; Rx, Ry, Rz; Lx, Ly, Lz) and 3 angular (anteroposterior, mediolateral, twisting) displacements were measured with a coordinate measuring machine. The mean standard deviations of the linear and angular displacements defined repositioning accuracy. Anteroposterior linear repositioning accuracy ranged from 23.8 ±3.7 μm (DENCON) to 4.9 ±3.2 μm (DENSCR). Mediolateral linear repositioning accuracy ranged from 46.0 ±8.0 μm (DENCON) to 3.7 ±1.5 μm (ARTBLU), and vertical linear repositioning accuracy ranged from 7.2 ±9.6 μm (DENMAG) to 1.5 ±0.9 μm (ARTBLU). Anteroposterior angular repositioning accuracy ranged from 0.0084 ±0.0080 degrees (DENCON) to 0.0020 ±0.0006 degrees (ARTBLU), and mediolateral angular repositioning accuracy ranged from 0.0120 ±0.0111 degrees (ARTWHI) to 0.0027 ±0.0008 degrees (ARTBLU). Twisting angular repositioning accuracy ranged from 0.0419 ±0.0176 degrees (DENCON) to 0.0042 ±0.0038 degrees

Postmodern Stress Disorder (PMSD): A Possible New Disorder.

Science.gov (United States)

Eiser, Arnold R

2015-11-01

The murder of cardiovascular surgeon, Michael Davidson, MD, suggests the existence of a new disorder, postmodern stress disorder. This disorder is characterized by repetitive exposure to digital images of violence in a variety of electronic media, including films, television, video games, music videos, and other online sources. This disorder appears to be a variant of posttraumatic stress disorder, and shares with it excessive stimulation of the amygdala and loss of the normal inhibitory inputs from the orbitofrontal cingulate cortical gyrus. In postmodern stress disorder, repetitive digital microtraumas appear to have an effect similar to that of macrotraumas of warfare or civilian assaults. Other elements of the disorder include the development of fixed ideas of bullying or public shaming, access to weapons, and loss of impulse control. This syndrome could explain a number of previously inexplicable murders/suicides. Violence against health care professionals is a profound concern for the medical profession, as are assaults on nonclinicians. The recommendation is made to change forensic procedures to include obtaining historic information concerning the use of digital media during investigations of violent crimes and murders so that the disorder may be further characterized. Gaining an understanding of this disorder will require a multidisciplinary approach to this life-threatening public health problem. Research should also focus on the development and evaluation of possible antidotes to postmodern toxicities. Copyright © 2015 Elsevier Inc. All rights reserved.

Oppositional defiant disorder

Science.gov (United States)

... as possibilities: Anxiety disorders Attention-deficit/hyperactivity disorder (ADHD) Bipolar disorder Depression Learning disorders Substance abuse disorders Treatment The best treatment for the child is to ...

Thought and language disorders in very early onset schizophrenia, schizoaffective disorder and bipolar disorder

Directory of Open Access Journals (Sweden)

Telma Pantano

Full Text Available Abstract Background Thought and language disorders are main features of adults with schizophrenia and bipolar disorders however studies on such abnormalities are scant in young patients with very early onset psychosis (VEOS. The aim of the present study is to assess the relationship between language and thought disorders in patients with very early onset schizophrenia (SCZ, schizoaffective disorders (SCA and bipolar disorders (BD. Method Forty-one patients (18 SCZ, 16 BD, and 7 SCA with mean age less than 15 years old were assessed through a series of neurocognitive and psycholinguistic tests, including the Thought, Language and Communication Scale (TLC. Results SCZ group performed worse in all tests as well as the TLC, followed by SCA and BD groups respectively. Thought disorders were related to deficits in executive functioning and semantic processing, and the metaphors’ test was the best predictor of TLC functioning. Discussion TD in SCZ, SCA and BD are one of the most important features in patients with VEOS and that the evaluation of metaphor comprehension can be an important instrument in the early detection of this disorder.

Increased mortality among patients admitted with major psychiatric disorders: a register-based study comparing mortality in unipolar depressive disorder, bipolar affective disorder, schizoaffective disorder, and schizophrenia

DEFF Research Database (Denmark)

Laursen, Thomas Munk; Munk-Olsen, Trine; Nordentoft, Merete

2007-01-01

disorder has never been examined in a population-based study. OBJECTIVE: Our objective was to examine and compare mortality rates after admission with schizophrenia, schizoaffective disorder, unipolar depressive disorder, or bipolar affective disorder and to examine the impact of family history......: Unipolar depressive disorder, bipolar affective disorder, and schizoaffective disorder were associated with the same pattern of excess mortality. Schizophrenia had a lower mortality from unnatural causes of death and a higher mortality from natural causes compared to the 3 other disorders. Family history...

Delusional disorder-somatic type (or body dysmorphic disorder) and ...

African Journals Online (AJOL)

With regard to delusional disorder-somatic subtype there may be a relationship with body dysmorphic disorder. There are reports that some delusional disorders can evolve to become schizophrenia. Similarly, the treatment of such disorders with antipsychotics has been documented. This report describes a case of ...

Speech abilities in preschool children with speech sound disorder with and without co-occurring language impairment.

Science.gov (United States)

Macrae, Toby; Tyler, Ann A

2014-10-01

The authors compared preschool children with co-occurring speech sound disorder (SSD) and language impairment (LI) to children with SSD only in their numbers and types of speech sound errors. In this post hoc quasi-experimental study, independent samples t tests were used to compare the groups in the standard score from different tests of articulation/phonology, percent consonants correct, and the number of omission, substitution, distortion, typical, and atypical error patterns used in the production of different wordlists that had similar levels of phonetic and structural complexity. In comparison with children with SSD only, children with SSD and LI used similar numbers but different types of errors, including more omission patterns ( p < .001, d = 1.55) and fewer distortion patterns ( p = .022, d = 1.03). There were no significant differences in substitution, typical, and atypical error pattern use. Frequent omission error pattern use may reflect a more compromised linguistic system characterized by absent phonological representations for target sounds (see Shriberg et al., 2005). Research is required to examine the diagnostic potential of early frequent omission error pattern use in predicting later diagnoses of co-occurring SSD and LI and/or reading problems.

Production of pre-basic potato seed by polyvinyl chloride PVC: articulate gutters hydroponic system

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Jonny Everson Scherwinski-Pereira

2009-10-01

Full Text Available The development of more efficient and productive systems for pre-basic seed potato production would improve the quality of the propagative material used by the potato growers, directly affecting the crop yields. A two-year experiment was carried out to evaluate the potato pre-basic seed production by two types of hydroponic systems (fibrocement tiles and articulated PVC gutters, two cultivars (`Baronesa` and `Eliza` and two types of propagative material (plants coming from in vitro culture and minitubers. The PVC gutters system was highly efficient. When using minitubers, this system reached multiplication rates up to 74 tubers per plant. Minitubers were more productive than in vitro plants, independent of cultivar and hydroponic system utilized.Um experimento realizado por dois anos consecutivos avaliou a produção de sementes pré-básicas de batata por meio de sistemas de cultivo hidropônico. O trabalho testou a combinação de dois sistemas de cultivo (telha de fibrocimento e calhas de PVC articuladas, duas cultivares (Baronesa e Eliza e dois tipos de material propagativo (plântulas oriundas do cultivo in vitro e minitubérculos. O sistema de calhas de PVC foi altamente eficiente. Quando foi utilizado minitubérculos, este sistema alcançou taxas de multiplicação de até 74 tubérculos por planta. De modo geral, o uso de minitubérculos como material propagativo apresentou os melhores resultados de produtividade quando comparada ao material in vitro, independentemente da cultivar e sistemas hidropônicos utilizados.

Antisocial personality disorder and anxiety disorder: a diagnostic variant?

Science.gov (United States)

Coid, Jeremy; Ullrich, Simone

2010-06-01

Antisocial personality disorder (ASPD) with co-morbid anxiety disorder may be a variant of ASPD with different etiology and treatment requirements. We investigated diagnostic co-morbidity, ASPD criteria, and anxiety/affective symptoms of ASPD/anxiety disorder. Weighted analyses were carried out using survey data from a representative British household sample. ASPD/anxiety disorder demonstrated differing patterns of antisocial criteria, co-morbidity with clinical syndromes, psychotic symptoms, and other personality disorders compared to ASPD alone. ASPD criteria demonstrated specific associations with CIS-R scores of anxiety and affective symptoms. Findings suggest ASPD/anxiety disorder is a variant of ASPD, determined by symptoms of anxiety. Although co-morbid anxiety and affective symptoms are the same as in anxiety disorder alone, associations with psychotic symptoms require further investigation. Copyright 2010 Elsevier Ltd. All rights reserved.

Personality disorder and treatment outcome in alcohol use disorder.

Science.gov (United States)

Newton-Howes, Giles; Foulds, James

2018-01-01

As personality disorder impacts the outcome of most major mental disorders, it would be consistent for it to impact negatively on the outcome of alcohol use disorders (AUDs). This update is to provide an up-to-date overview of the recent literature examining the impact of personality disorder and personality traits on the treatment outcome of AUDs. Comorbidity between personality disorder and AUD is significant and approaches 50%. Patients with AUD and comorbid personality disorder are substantially less likely to remain in treatment, drink more per drinking day and drink more frequently. If retained in treatment, comorbidity does not, however, lead to poorer outcomes. Relapse to drinking is more common in patient with high novelty seeking and lower reward dependence and persistence. Reporting from most studies is of moderate-to-poor quality and a single high-quality study may alter these findings. Landmark alcohol studies are notably quiet on the impact of personality on AUD treatment outcome. Both personality disorder and higher novelty seeking impact negatively on the treatment outcome of AUD. As personality disorder is common in this group, clinicians engaged in AUD treatment should screen for personality disturbance, either disorder or high novelty seeking.

[Eating disorders].

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Miyake, Yoshie; Okamoto, Yuri; Jinnin, Ran; Shishida, Kazuhiro; Okamoto, Yasumasa

2015-02-01

Eating disorders are characterized by aberrant patterns of eating behavior, including such symptoms as extreme restriction of food intake or binge eating, and severe disturbances in the perception of body shape and weight, as well as a drive for thinness and obsessive fears of becoming fat. Eating disorder is an important cause for physical and psychosocial morbidity in young women. Patients with eating disorders have a deficit in the cognitive process and functional abnormalities in the brain system. Recently, brain-imaging techniques have been used to identify specific brain areas that function abnormally in patients with eating disorders. We have discussed the clinical and cognitive aspects of eating disorders and summarized neuroimaging studies of eating disorders.

What characteristics of primary anxiety disorders predict subsequent major depressive disorder?

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Bittner, Antje; Goodwin, Renee D; Wittchen, Hans-Ulrich; Beesdo, Katja; Höfler, Michael; Lieb, Roselind

2004-05-01

The goal of this study was to examine the associations between specific anxiety disorders and the risk of major depressive disorder and to explore the role of various clinical characteristics of anxiety disorders in these relationships using a prospective, longitudinal design. The data are from a 4-year prospective, longitudinal community study, which included both baseline and follow-up survey data on 2548 adolescents and young adults aged 14 to 24 years at baseline. DSM-IV diagnoses were made using the Munich-Composite International Diagnostic Interview. The presence at baseline of any anxiety disorder (odds ratio [OR] = 2.2 [95% CI = 1.6 to 3.2]) and each of the anxiety disorders (specific phobia, OR = 1.9 [95% CI = 1.3 to 2.8]; social phobia, OR = 2.9 [95% CI = 1.7 to 4.8]; agoraphobia, OR = 3.1 [95% CI = 1.4 to 6.7]; panic disorder, OR = 3.4 [95% CI = 1.2 to 9.0]; generalized anxiety disorder, OR = 4.5 [95% CI = 1.9 to 10.3]) was associated with a significantly (p depressive disorder. These associations remained significant after we adjusted for mental disorders occurring prior to the onset of the anxiety disorder, with the exception of the panic disorder association. The following clinical characteristics of anxiety disorders were associated with a significantly (p depressive disorder: more than 1 anxiety disorder, severe impairment due to the anxiety disorder, and comorbid panic attacks. In the final model, which included all clinical characteristics, severe impairment remained the only clinical characteristic that was an independent predictor of the development of major depressive disorder (OR = 2.2 [95% CI = 1.0 to 4.4]). Our findings suggest that anxiety disorders are risk factors for the first onset of major depressive disorder. Although a number of clinical characteristics of anxiety disorders appear to play a role in the association between anxiety disorders and depression, severe impairment is the strongest predictor of major depressive disorder.

Bipolar disorder and substance use disorders. Madrid study on the prevalence of dual disorders/pathology.

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Arias, Francisco; Szerman, Nestor; Vega, Pablo; Mesías, Beatriz; Basurte, Ignacio; Rentero, David

2017-06-28

Given its prevalence and impact on public health, the comorbidity of bipolar and substance use disorders is one of the most relevant of dual diagnoses. The objective was to evaluate the characteristics of patients from community mental health and substance abuse centres in Madrid. The sample consisted of 837 outpatients from mental health and substance abuse centres. We used the Mini International Neuropsychiatric Interview (MINI) and Personality Disorder Questionnaire (PDQ4+) to evaluate axis I and II disorders. Of these patients, 174 had a lifetime bipolar disorder, 83 had bipolar disorder type I and 91 had type II. Most patients had dual pathology. Of the 208 participants from the mental health centres, 21 had bipolar disorder and 13 (61.9%) were considered dually-diagnosed patients, while 33.2% of non-bipolar patients had a dual diagnoses (p = 0.03). Of the 629 participants from the substance abuse centres, 153 patients (24.3%) had a bipolar diagnosis. Bipolar dual patients had higher rates of alcohol and cocaine dependence than non-bipolar patients. Moreover, age at onset of alcohol use was earlier in bipolar duallydiagnosed patients than in other alcoholics. Bipolar dually-diagnosed patients had higher personality and anxiety disorder comorbidities and greater suicide risk. Thus, alcohol and cocaine are the drugs most associated with bipolar disorder. Given the nature of the study, the type of relationship between these disorders cannot be determined.

Binge Eating Disorder

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Senol Turan

2015-12-01

Full Text Available Binge Eating Disorder, characterized by frequent and persistent overeating episodes that are accompanied by feeling of loss of control over eating without regular compensatory behaviors and was identified in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition as a new eating disorder category. Binge Eating Disorder is the most common eating disorder among adults. Binge Eating Disorder is associated with significant morbidity, including medical complications related to obesity, eating disorder psychopathology, psychiatric comorbidity; reduced quality of life, and impaired social functioning. Current treatments of Binge Eating Disorder include pharmacotherapy, psychotherapy and bariatric surgery. In this review, the definition, epidemiology, etiology, clinical features, and also mainly treatment of Binge Eating Disorder are discussed.

Clinical status of comorbid bipolar disorder and borderline personality disorder.

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Parker, Gordon; Bayes, Adam; McClure, Georgia; Del Moral, Yolanda Romàn Ruiz; Stevenson, Janine

2016-09-01

The status and differentiation of comorbid borderline personality disorder and bipolar disorder is worthy of clarification. To determine whether comorbid borderline personality disorder and bipolar disorder are interdependent or independent conditions. We interviewed patients diagnosed with either a borderline personality disorder and/or a bipolar condition. Analyses of participants grouped by DSM diagnoses established that those with comorbid conditions scored similarly to those with a borderline personality disorder alone on all key variables (i.e. gender, severity of borderline personality scores, developmental stressors, illness correlates, self-injurious behaviour rates) and differed from those with a bipolar disorder alone on nearly all non-bipolar item variables. Similar findings were returned for groups defined by clinical diagnoses. Comorbid bipolar disorder and borderline personality disorder is consistent with the formal definition of comorbidity in that, while coterminous, individuals meeting such criteria have features of two independent conditions. © The Royal College of Psychiatrists 2016.

Interactions between disordered sleep, post-traumatic stress disorder, and substance use disorders.

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Vandrey, Ryan; Babson, Kimberly A; Herrmann, Evan S; Bonn-Miller, Marcel O

2014-04-01

Disordered sleep is associated with a number of adverse health consequences and is an integral component of many psychiatric disorders. Rates of substance use disorders (SUDs) are markedly higher among individuals with post-traumatic stress disorder (PTSD), and this relationship may be partly mediated by disturbed sleep. Sleep disturbances (e.g. insomnia, daytime sleepiness, vivid nightmares) are hallmark features of PTSD and there is evidence that individuals with PTSD engage in substance use as a means of coping with these symptoms. However, prolonged substance use can lead to more severe sleep disturbances due to the development of tolerance and withdrawal. Behavioural or pharmacological treatment of disordered sleep is associated with improved daytime symptoms and psychosocial functioning among individuals who have developed PTSD. Initial research also suggests that improving sleep could be similarly beneficial in reducing coping oriented substance use and preventing relapse among those seeking treatment for SUDs. Together, these findings suggest that ameliorating sleep disturbance among at-risk individuals would be a viable target for the prevention and treatment of PTSD and associated SUDs, but prospective research is needed to examine this hypothesis. Enhanced understanding of the interrelation between sleep, PTSD, and SUDs may yield novel prevention and intervention approaches for these costly, prevalent and frequently co-occurring disorders.

Meige's Syndrome: Rare Neurological Disorder Presenting as Conversion Disorder.

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Debadatta, Mohapatra; Mishra, Ajay K

2013-07-01

Meige's syndrome is a rare neurological syndrome characterized by oromandibular dystonia and blepharospasm. Its pathophysiology is not clearly determined. A 35-year-old female presented to psychiatric department with blepharospasm and oromandibular dystonia with clinical provisional diagnosis of psychiatric disorder (Conversion Disorder). After thorough physical examination including detailed neurological exam and psychiatric evaluation no formal medical or psychiatric diagnosis could be made. The other differential diagnoses of extra pyramidal symptom, tardive dyskinesia, conversion disorder, anxiety disorder were ruled out by formal diagnostic criteria. Consequently with suspicion of Meige's syndrome she was referred to the department of Neurology and the diagnosis was confirmed. Hence, Meige's syndrome could be misdiagnosed as a psychiatric disorder such as conversion disorder or anxiety disorder because clinical features of Meige's syndrome are highly variable and affected by psychological factors and also can be inhibited voluntarily to some extent.

Mood disorder history and personality assessment in premenstrual dysphoric disorder.

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Critchlow, D G; Bond, A J; Wingrove, J

2001-09-01

Menstrually related dysphoria is known to be associated with other affective disorders, notably major depressive disorder and puerperal depression. The relationship between premenstrual dysphoric disorder (PMDD) and maladaptive personality disorders and traits, however, is less established, at least in part because of the methodological and nosologic difficulties in the diagnosis of both PMDD and personality disorders. This study seeks to address this problem to elucidate the relationship between PMDD, other affective disturbances commonly experienced by women, and maladaptive personality. Axis I and II disorders were examined using standardized instruments and stringent diagnostic criteria (DSM-IV and the International Personality Disorders Examination) in 34 women with DSM-IV PMDD and 22 healthy women without severe premenstrual mood changes. Seventy-seven percent of the PMDD group had suffered from a past Axis I disorder in comparison with 17% of the control group. Two thirds of the parous women with PMDD had suffered from major depressive disorder in the puerperium. Personality disorder diagnoses were not highly represented in either group of women. The women with PMDD had significantly more obsessional personality traits (p personality disorder diagnoses. Obsessional symptoms are known to cluster with the affective disorders and may reflect underlying temperamental and biological vulnerability. This study provides further evidence of the link between serotonergic dysregulation, personality vulnerability, and mood changes related to the female reproductive cycle.

Recent Advances in the Study of Sleep in the Anxiety Disorders, Obsessive-Compulsive Disorder, and Posttraumatic Stress Disorder.

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Boland, Elaine M; Ross, Richard J

2015-12-01

Sleep disturbance is frequently associated with generalized anxiety disorder, panic disorder, obsessive-compulsive disorder, and posttraumatic stress disorder. This article reviews recent advances in understanding the mechanisms of the sleep disturbances in these disorders and discusses the implications for developing improved treatments. Published by Elsevier Inc.

Difference or disorder? Cultural issues in understanding neurodevelopmental disorders.

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Norbury, Courtenay Frazier; Sparks, Alison

2013-01-01

Developmental disorders, such as autism spectrum disorder and specific language impairment, are biologically based disorders that currently rely on behaviorally defined criteria for diagnosis and treatment. Specific behaviors that are included in diagnostic frameworks and the point at which individual differences in behavior constitute abnormality are largely arbitrary decisions. Such decisions are therefore likely to be strongly influenced by cultural values and expectations. This is evident in the dramatically different prevalence rates of autism spectrum disorder across countries and across different ethnic groups within the same country. In this article, we critically evaluate the understanding of developmental disorders from a cultural perspective. We specifically consider the challenges of applying diagnostic methods across cultural contexts, the influence of cultural values and expectations on the identification and treatment of children with suspected disorders, and how cross-cultural studies can help to refine cognitive theories of disorder that have been derived exclusively from Western North American and European investigations. Our review synthesizes clinical, cultural, and theoretical work in this area, highlighting potential universals of disorder and concluding with recommendations for future research and practice.

Bipolar disorder, schizoaffective disorder, and schizophrenia overlap: a new comorbidity index.

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Laursen, Thomas Munk; Agerbo, Esben; Pedersen, Carsten Bøcker

2009-10-01

Growing evidence of an etiologic overlap between schizophrenia, schizoaffective disorder, and bipolar disorder has become increasingly difficult to disregard. We investigated the magnitude of the overlap between the clinical diagnoses of bipolar affective disorder, schizoaffective disorder, and schizophrenia over a 35-year period based on the entire Danish population. We established a register-based prospective cohort study of more than 2.5 million persons born in Denmark after 1954. Risks for the 3 psychiatric disorders were estimated by survival analysis using the Aalen-Johansen method. Cohort members were followed from 1970 to 2006. We introduced a new comorbidity index measuring the magnitude of the overlap between the 3 disorders. Overall, 12,734 patients were admitted with schizophrenia, 4,205 with bipolar disorder, and 1,881 with schizoaffective disorder. A female bipolar patient's risk of also being admitted with a schizoaffective disorder by the age of 45 years was approximately 103 times higher than that of a woman at the same age in the general population. Thus, we defined the comorbidity index between schizoaffective disorder and bipolar disorder at age 45 years to be 103. At age 45 years, the index between schizophrenia and schizoaffective disorder was 80 and between schizophrenia and bipolar disorder was 20. Similar large comorbidity indexes were found for men. A large comorbidity index between schizophrenia and schizoaffective disorder was found, as well as a large index between bipolar disorder and schizoaffective disorder. But, more surprisingly, it was clear that a substantial comorbidity index between bipolar disorder and schizophrenia was present. This study supports the existence of an overlap between bipolar disorder and schizophrenia and thus challenges the strict categorical approach used in both DSM-IV and ICD-10 classification systems. Copyright 2009 Physicians Postgraduate Press, Inc.

Sleep disorders in children with attention-deficit/hyperactivity disorder

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Medina Permatawati

2018-03-01

Conclusion The proportion of sleep disorder in children with ADHD is relatively high, with the majority having a disorder of initiating and maintaining sleep. Children with combined type ADHD experience a higher amount of sleep disorder than those with either the inattention or hyperactive-impulsive types of ADHD. Children with poor sleep hygiene have significantly more severe sleep disorders.

Critical exploration of co-occurring Attention-Deficit/Hyperactivity Disorder, mood disorder and Substance Use Disorder.

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Regnart, Judith; Truter, Ilse; Meyer, Anneke

2017-06-01

Co-occurring disorders (CODs) describe a Substance Use Disorder (SUD) accompanied by a comorbid psychiatric disorder. Attention-Deficit/Hyperactivity Disorder (ADHD) and mood disorders are common CODs with high prevalence rates in SUD populations. It is proposed that literature on a tri-condition presentation of ADHD, mood disorder and SUD is limited. Areas covered: A literature search was conducted using a keyword search on EBSCOhost. Initially 2 799 records were identified, however, only two articles included all three conditions occurring concurrently in individuals. CODs constitute a major concern due to their overarching burden on society as a whole. Diagnosis and treatment of such patients is challenging. There is evidence that dysfunction of dopamine in the brain reward circuitry impacts the development or symptomology of all three disorders. Disparity exists regarding whether ADHD or mood disorders are greater modifiers for increased SUD severity. However, it has been reported that poor functional capacity may have a greater influence than comorbidities on SUD development. Expert commentary: Challenges exist which confound the clear distinction of CODs, however, with greater emergence of adult ADHD its screening in SUD populations should become standard practice to establish data on multi-condition presentations with the ultimate goal of improving clinical outcomes.