189 research outputs found
1966 Ohio Farm Income: Estimated Cash Receipts From Farm Marketing and Government Payments by Counties and Major Commodity Groups
Different strategies for recovering metals from CARON process residue
http://dx.doi.org/10.1016/j.jhazmat.2011.03.048The capacity of Acidithiobacillus thiooxidans DMS 11478 to recover the heavy metals contained in
the residue obtained from the CARON process has been evaluated. Different bioreactor configurations
were studied: a two-stage batch system and two semi-continuous systems (stirred-tank reactor
leaching and column leaching). In the two-stage system, 46.8% Co, 36.0% Mg, 26.3% Mn and 22.3% Ni
were solubilised after 6 h of contact between the residue and the bacteria-free bioacid. The results
obtained with the stirred-tank reactor and the column were similar: 50% of the Mg and Co and
40% of the Mn and Ni were solubilised after thirty one days. The operation in the column reactor
allowed the solid–liquid ratio to be increased and the pH to be kept at low values (<1.0). Recirculation
of the leachate in the column had a positive effect on metal removal; at sixty five days
(optimum time) the solubilisation levels were as follows: 86% Co, 83% Mg, 72% Mn and Ni, 62% Fe and
23% Cr. The results corroborate the feasibility of the systems studied for the leaching of metals from
CARON process residue and these methodologies can be considered viable for the recovery of valuable
metals
Design of a robot for gait rehabilitation
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.Cataloged from PDF version of thesis.Includes bibliographical references.The ability to walk is important for independent living and when this capacity is affected by injury, gait therapy is the traditional approach to re-train the nervous system, to re-build muscle strength, to improve balance, and to re-train kinematics in order to reduce the stresses applied to bones and muscles. The importance of this problem is illustrated by the approximately 5.8 million stroke survivors alive in the US today and an estimated 700,000 strokes occurring each year. In fact, for stroke survivors with mild to moderate impairment, only 37% regain the ability to walk within one week post-stroke and 73% fall within the first six months. Falls are a leading cause of injury among Americans over 65 years old with over one third of this population experiencing a fall each year and an unsteady gait increases this risk. This growing population will require gait therapy. This thesis presents the design, development, fabrication, and proof-of-concept testing for a novel device to deliver gait therapy. While robotic devices exist, none of them take advantage of the concept of passive walkers and most focus on reproducing gait kinematics for impaired patients. Yet research has found that appropriate neural input is an important factor in efficacious therapy. For gait, this input would be the collision between the foot and the ground at heel-strike. The goal of this novel device is to allow patients to begin gait therapy before they are able to independently walk overground while maximizing the amount interface driven neural input during stepping in a safe environment.by Caitlyn Joyce Bosecker.S.M
Conference Report: The Art Fair
Conference Report of the TIAMSA conference "The Art Fair", London, July 201
Organic acid enhanced electrodialytic extraction of lead from contaminated soil fines in suspension
An Evaluation of the University of Illinois Extension Get Up & Move! Program
Get Up & Move! is a program created by University of Illinois Extension to address childhood obesity. It provides ready-to-use materials for youth leaders to promote healthy lifestyles through physical fitness and healthy eating. The impact of the program on participants’ physical activity was evaluated to see whether involvement produces an increase in physical activity to the USDA recommended 60 minutes per day. It was found that a significant increase in minutes of physical activity occurred in participants from an average of 51.88 minutes per day to an average of 58.84 minutes per day
Quantitative assessment based on kinematic measures of functional impairments during upper extremity movements: a review
Quantitative measures of human movement quality are important for discriminating healthy and pathological conditions and for expressing the outcomes and clinically important changes in subjects' functional state. However the most frequently used instruments for the upper extremity functional assessment are clinical scales, that previously have been standardized and validated, but have a high subjective component depending on the observer who scores the test. But they are not enough to assess motor strategies used during movements, and their use in combination with other more objective measures is necessary. The objective of the present review is to provide an overview on objective metrics found in literature with the aim of quantifying the upper extremity performance during functional tasks, regardless of the equipment or system used for registering kinematic data
Self-Paced Reaching after Stroke: A Quantitative Assessment of Longitudinal and Directional Sensitivity Using the H-Man Planar Robot for Upper Limb Neurorehabilitation
Hussain A, Budhota A, Hughes CML, et al. Self-Paced Reaching after Stroke: A Quantitative Assessment of Longitudinal and Directional Sensitivity Using the H-Man Planar Robot for Upper Limb Neurorehabilitation. Frontiers in Neuroscience. 2016;10:477
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