MedWorm: Biomedical Engineering

Research4Life

Elsevier Updates: Engineering — Sat, 04 Feb 2012 12:00:12 +0100

Elsevier is a founding partner and leading contributor to Research4Life, a public private partnership, providing developing countries with low or low cost access to academic and peer reviewed content online for four programs HINARI, AGORA, OARE and ARDI. (Source: Elsevier Updates: Engineering)

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Wearing a safety harness during treadmill walking influences lower extremity kinematics mainly through changes in ankle regularity and local stability

Journal of NeuroEngineering and Rehabilitation — Fri, 03 Feb 2012 05:00:00 +0100

Conclusions: Wearing a harness during treadmill walking marginally influences lower extremity kinematics, resulting in more or less subtle changes in certain kinematic variables. However, in cases where differences in gait patterns would be expressed through modifications in these variables, having subjects walk with a harness may mask or reinforce such differences. (Source: Journal of NeuroEngineering and Rehabilitation)

Development and Implementation of a Web-Enabled 3D Consultation Tool for Breast Augmentation Surgery Based on 3D-Image Reconstruction of 2D Pictures

Journal of Medical Internet Research — Fri, 03 Feb 2012 05:00:00 +0100

Conclusions: We tested our tool for 3D, Web-based, patient-specific consultation in the clinical scenario of breast augmentation. This example shows that the current state of development allows for creation of responsive and effective Web-based, 3D medical tools, even with highly complex and time-consuming computation, by off-loading them to a dedicated high-performance data center. The efficient combination of advanced technologies, based on analysis and understanding of human anatomy and physiology, will allow the development of further Web-based reconstruction and predictive interfaces at different scales of the human body. The consultation tool presented herein exemplifies the potential of combining advancements in the core areas of computer science and biomedical engineering with the ...

A service by scientists for scientists: Elsevier’s Editors’ Choice App aims to select best research articles

Elsevier Updates: Engineering — Thu, 02 Feb 2012 12:00:00 +0100

Identifying the latest and most relevant research in a towering stack of journals can be time consuming. Here, Elsevier’s Elizabeth Holmes introduces the Editors’ Choice App, a downloadable application that seeks to present the reader with a personalised selection of peer-reviewed research. (Source: Elsevier Updates: Engineering)

Researchers Develop Novel Drug Delivery System

Health News from Medical News Today — Thu, 02 Feb 2012 08:00:00 +0100

Long duration, controllable drug delivery is of wide interest to medical researchers and clinicians, particularly those seeking to improve treatment for patients with chronic pain or to prevent cancer recurrence after surgery. Now a team of researchers led by Boston University Biomedical Engineer and Chemist Mark Grinstaff has developed a unique material and drug delivery mechanism that could pave the way for implants that release a drug at a designated rate for months... (Source: Health News from Medical News Today)

Incidence of cutaneous malignant melanoma in the Czech Republic: The risks of sun exposure for adolescents.

Neoplasma — Thu, 02 Feb 2012 05:00:00 +0100

Incidence of cutaneous malignant melanoma in the Czech Republic: The risks of sun exposure for adolescents. Neoplasma. 2012 Feb 2;:1-2 Authors: Vranova J, Arenbergerova M, Arenberger P, Stanek J, Vrana A, Zivcak J, Rosina J Abstract The Czech Republic reported one of the highest incidence rate in cutaneous melanoma (CM) in Europe and because this incidence has been increasing, mainly among young people, the main goal of our study was to establish sun exposure behavior risk factors for CM formation and to evaluate whether the young generation of Czechs is exposed to a higher risk of CM than the older generation. A questionnaire-based case-control study was conducted. We obtained 978 completed questionnaires: 216 from patients with CM and 762 from healthy respondents. The...

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Development of a Finite Element Model for Blast Brain Injury and the Effects of CSF Cavitation.

Annals of Biomedical Engineering — Thu, 02 Feb 2012 05:00:00 +0100

Authors: Panzer MB, Myers BS, Capehart BP, Bass CR Abstract Blast-related traumatic brain injury is the most prevalent injury for combat personnel seen in the current conflicts in Iraq and Afghanistan, yet as a research community, we still do not fully understand the detailed etiology and pathology of this injury. Finite element (FE) modeling is well suited for studying the mechanical response of the head and brain to blast loading. This paper details the development of a FE head and brain model for blast simulation by examining both the dilatational and deviatoric response of the brain as potential injury mechanisms. The levels of blast exposure simulated ranged from 50 to 1000 kPa peak incident overpressure and 1-8 ms in positive-phase duration, and were comparable to real-worl...

Mechanical Systems and Signal Processing - SI Call for Papers

Elsevier Updates: Engineering — Wed, 01 Feb 2012 12:00:00 +0100

Special Issue on Instantaneous Angular Speed (IAS) processing and angular applications. For more information, visit the journal homepage. (Source: Elsevier Updates: Engineering)

Thermal Barrier Coatings in Gas Turbine Engines - Part 3

Elsevier Updates: Engineering — Wed, 01 Feb 2012 08:00:08 +0100

The Role of Fracture of Metal/Ceramic Interfaces (Source: Elsevier Updates: Engineering)

Integrated Microfluidics Platforms for Investigating Injury and Regeneration of CNS Axons.

Annals of Biomedical Engineering — Wed, 01 Feb 2012 05:00:00 +0100

We describe the development of experimental platforms to quantify the regeneration of injured central nervous system (CNS) neurons by combining engineering technologies and primary neuronal cultures. Although the regeneration of CNS neurons is an important area of research, there are no currently available methods to screen for drugs. Conventional tissue culture based on Petri dish does not provide controlled microenvironment for the neurons and only provide qualitative information. In this review, we introduced the recent advances to generate in vitro model system that is capable of mimicking the niche of CNS injury and regeneration and also of testing candidate drugs. We reconstructed the microenvironment of the regeneration of CNS neurons after injury to provide as in vivo like model sy...

Deterioration of Stress Distribution Due to Tunnel Creation in Single-Bundle and Double-Bundle Anterior Cruciate Ligament Reconstructions.

Annals of Biomedical Engineering — Wed, 01 Feb 2012 05:00:00 +0100

Authors: Yao J, Wen C, Cheung JT, Zhang M, Hu Y, Yan C, Chiu KY, Lu WW, Fan Y Abstract Bone tunnel enlargement is a common effect associated with knee laxity after anterior cruciate ligament (ACL) reconstruction. Nevertheless, its exact pathomechanism remains controversial. One of the possible reasons could be bone remodeling due to tunnel creation, which changes the stress environment in the joint. The present study aims to characterize the deteriorated stress distribution on the articular surface, which is due to tunnel creation after single-bundle or double-bundle ACL reconstruction. The stress distributions in the knee following ACL reconstruction under the compression, rotation, and valgus torques were calculated using a validated three-dimensional finite element (FE) model. T...

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$L_1$ -Regularized STAP Algorithms With a Generalized Sidelobe Canceler Architecture for Airborne Radar

IEEE Transactions on Signal Processing — Wed, 01 Feb 2012 05:00:00 +0100

In this paper, we propose novel l1-regularized space-time adaptive processing (STAP) algorithms with a generalized sidelobe canceler architecture for airborne radar applications. The proposed methods suppose that a number of samples at the output of the blocking process are not needed for sidelobe canceling, which leads to the sparsity of the STAP filter weight vector. The core idea is to impose a sparse regularization (l1-norm type) to the minimum variance criterion. By solving this optimization problem, an l1-regularized recursive least squares (l1-based RLS) adaptive algorithm is developed. We also discuss the SINR steady-state performance and the penalty parameter setting of the proposed algorithm. To adaptively set the penalty parameter, two switched schemes are proposed for l1-based ...

IEEE Transactions on Medical Imaging information for authors