Science.gov

Sample records for modified boston brace

  1. Use of modified Boston brace for back injuries in athletes.

    PubMed

    Micheli, L J; Hall, J E; Miller, M E

    1980-01-01

    The Boston Brace System was developed to attain functional realignment of the scoliotic spine. This system uses prefabricated thermoplastic pelvic modules which can be rapidly fitted to an individual patient. These modules are available in 20 sizes and designed with a forward flexion of 30 degrees on the anterior margin and 15 degrees on the posterior surface. The resultant antilordotic straightening of the lumbar spine is important in correcting the scoliotic spine and has been found to be therapeutically effective in managing a number of other conditions of the spine, including back injuries in the young athlete. A review of the results of treatment of 31 young athletes for back injuries over the past 3 years with the brace, with an average followup of 15 months, reveals good or excellent results in 28 of the 31, or 90%. Best results were attained in spondylolysis. Therapy for discogenic back pain with the brace was effective in only 50%. Modifications of initial brace design included changing from a posterior opening to an anterior opening module and from polypropylene to polyethylene brace construction. Most patients have continued full athletic participation while in the brace.

  2. The classical and a modified Boston brace: description and results.

    PubMed

    Grivas, Theodoros B; Kaspiris, Angelos

    2011-01-01

    Idiopathic scoliosis (IS) is characterized by the lateral deviation of the spine and constitutes a three-dimensional distortion that leads to geometric and morphological lesions in the spine and thoracic cage. The most widespread method of conservative management is to use spinal orthoses or body braces. These are usually recommended in patients with skeletal immaturity with a Risser sign 2 or less and with curves ranging from 25° to 45°. Of these, perhaps one of the most popular in recent years is the Boston Brace. It was developed in the early 1970s, and its design is based on symmetry, consisting of extensions and pads, with each of them exerting corrective forces and has a specific role depending on the type of scoliosis. It is important that the treatment group, the patient, and the family environment should work as a team consistently and be well trained to achieve the best result. Various studies published in international literature have observed beneficial effects from the use of the Boston system. Nevertheless, there are still issues that need further investigation regarding its effectiveness depending on the type of curves, the duration of application, the gender, and BMI of patients to whom it is applied. However, without question, if all these factors are taken into account and with the compliance of the therapy group with the instructions, the main goal can be achieved, which is the stability of the spine, and the ultimate result of clinical-radiological and aesthetic improvement, which is directly linked to the psychological satisfaction of the patient.

  3. Interface corrective force measurements in Boston brace treatment.

    PubMed

    van den Hout, J A A M; van Rhijn, L W; van den Munckhof, R J H; van Ooy, A

    2002-08-01

    Brace application has been reported to be effective in treating idiopathic adolescent scoliosis. The exact working mechanism of a thoracolumbo spinal orthosis is a result of different mechanisms and is not completely understood. One of the supposed working mechanisms is a direct compressive force working through the brace upon the body and thereby correcting the scoliotic deformity, achieving optimal fit of the individual orthosis. In this study we measured these direct forces exerted by the pads in a Boston brace in 16 patients with idiopathic adolescent scoliosis, using the electronic PEDAR measuring device (Novel, Munich, Germany). This is designed as an in-shoe measuring system consisting of two shoe insoles (size 8 1/2), wired to a computer, recording static and dynamic pressure distribution under the plantar surface of the foot. After positioning the inserts between the lumbar and thoracic pads and the body, we measured the forces acting upon the body in eight different postures. In all positions the mean corrective force through the lumbar brace pad was larger than the mean corrective force over the thoracic brace pad. Some changes in body posture resulted in statistically significant alterations in the exerted forces. There was no significant correlation between the magnitude of the compressive force over the lumbar and thoracic brace-pad and the degree of correction of the major curve. Comparing the corrective forces in a relatively new (<6 months) and old (>6 months) brace, there was no statistically relevant difference, although the corrective force was slightly larger in the new braces. We think that the use of this pressure measurement device is practicable and of value for studies of the working mechanism of brace treatment, and in the future it might be of help in achieving optimal fit of the individual orthosis.

  4. Braces

    MedlinePlus

    ... that straightens your teeth faster and easier. The rubber bands that go along with braces come in ... kids just need regular braces with wires and rubber bands doing their jobs to keep pressure on ...

  5. The carbon brace

    PubMed Central

    2013-01-01

    Background The CMCR brace (Corset MonocoqueCarbone respectant la Respiration –which means Monoshell Carbon Brace respecting Breathing) is an innovative brace, used in orthopaedic treatment for progressive thoracic, thoraco-lumbar or combined scoliosis, whatever their etiology. It can be used at the very young age without disrupting the chest growth, but should be kept for reducible scoliosis in older teenagers. Brace description and principles The CMCR brace is monoshell while retaining the corrective principle of the polyvalve Lyon brace with one or two supports (brace “pads”) located on hump(s).In contrast to Lyon brace made of plexidur and structured by metal reinforcement with adjustable but fixed localized supports, the CMCR brace is made of polyethylene and carbon with adjustable and mobile supports. This mobility provides a permanent pressure, which varies depending on ribs and spine movements. The correction is obtained without spinal extension so that each respiratory movement takes part in a gradual return to dorsal kyphosis. Results Results were presented in two published analysis: • In the first retrospective study about 115 patients, French-published in the Annals of Physical Medicine and Rehabilitation (2005), the CMCR brace stabilized moderate scoliosis, decreased the vital capacity (VC) of 13% compared to the VC without brace, and did not have sufficient impact on the hump reduction. Treatment had better results when started at Risser 3 or 4 than Risser 0, 1, 2. The brace was then modified to increase the dorsal pad pressure and the location of correction forces was defined more precisely through the use of 3D analysis. • The second study published in Scoliosis (2011) mainly focused on the impact on VC at brace setting up and followed a cohort of 90 patients treated with CMCR. Girls as well as boys increased VC during treatment, and at brace definitive removal, VC had increased of 21% from the initial value, whereas the theoretical VC

  6. Knee Bracing: What Works?

    MedlinePlus

    MENU Return to Web version Knee Bracing: What Works? Knee Bracing: What Works? What are knee braces? Knee braces are supports ... have arthritis in their knees. Do knee braces work? Maybe. Companies that make knee braces claim that ...

  7. Invisible Braces

    NASA Technical Reports Server (NTRS)

    1989-01-01

    Ceradyne, Inc., and 3M Unitek were assisted in the development of Ceramic braces by NIAC/USC. The braces are marketed by Unitek/3M, and are made from translucent polycrystalline alumina (TPA). They are designed for each tooth, connected by a thin metal wire, are strong, aesthetically appealing and as effective clinically as plastic or metal appliances.

  8. Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross Bracing Detail, Vertical Cross Bracing-End Detail - Cumberland Covered Bridge, Spanning Mississinewa River, Matthews, Grant County, IN

  9. Spinal Bracing

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Dr. Arthur Copes of the Copes Foundation, Baton Rouge, LA, says that 35 percent of the 50 technical reports he received from the NASA/Southern University Industrial Applications Center in Baton Rouge and the Central Industrial Applications Center, Durant, OK, were vital to the development of his Copes Scoliosis Braces, which are custom designed and feature a novel pneumatic bladder that exerts constant corrective pressure to the torso to slowly reduce or eliminate the spinal curve.

  10. Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross Bracing Joint, Vertical Cross Bracing End Detail - Ceylon Covered Bridge, Limberlost Park, spanning Wabash River at County Road 900 South, Geneva, Adams County, IN

  11. Bracing for scoliosis in 2014: state of the art.

    PubMed

    Zaina, F; De Mauroy, J C; Grivas, T; Hresko, M T; Kotwizki, T; Maruyama, T; Price, N; Rigo, M; Stikeleather, L; Wynne, J; Negrini, S

    2014-02-01

    Bracing is currently the primary method for treating moderate idiopathic scoliosis (IS) during the developmental phase of growth. Following a lengthy debate, during which researchers and authors questioned the role of bracing in the treatment of IS due to inconsistent evidence, the Bracing in Adolescent Idiopathic Scoliosis Trial study have provided a high level of evidence to the value of bracing and may have convinced most of those who were skeptic. However, although some guidelines have been published, there remains no standard for constructing scoliosis orthoses and no standard treatment protocol. The Scoliosis Research Society criteria were established to provide a framework by which to research bracing and adolescent idiopathic scoliosis, and the Society on Scoliosis Orthopedic and Rehabilitation Treatment criteria were published to guarantee a minimum level of expertise for MDs and CPOs involved in the brace treatment. However, very few contemporary papers follow both sets of criteria, and the extensive variety of braces makes it difficult to determine if one is superior to another. The aim of this paper is to provide an overview of state-of-the-art brace treatment, highlighting commonly used braces and their history, biomechanical concept, and results, as reported in published literature. Specific focus is placed on European (i.e., Chêneau and derivatives, Dynamic Derotating, Lyon, PASB, Sforzesco, TLI, TriaC) and North American (i.e. Boston, Charleston, Milwaukee, Providence, Rosenberger, SpineCor, Wilmington) designs. Details about different building techniques are also reported, along with recently developed tools that are designed to monitor compliance.

  12. Relationships between strap tension, interface pressures and spine correction in brace treatment of scoliosis.

    PubMed

    Beauséjour, Marie; Petit, Yvan; Grimard, Guy; Aubin, Carl-Eric; Dansereau, Jean; Labelle, Hubert

    2002-01-01

    The Boston brace has been shown to efficiently prevent scoliosis curve progression. However, it rarely achieves complete 3-D correction; its adjustment being often empirical and its biomechanical modes of action still remaining poorly understood. This study investigates the in-brace spinal shape (correction) in relationship with the patient's out-of-brace deformation, and the adjustment parameters of the brace, namely the strap tensions and the equivalent forces calculated at the patient-brace interface. Many of the observed relationships illustrate the fact that the in-brace spinal shape is strongly related to the characteristics of the patient's out-of-brace deformation. The pattern of pressure distribution as described by the equivalent forces computed in the thoracic, lumbar, pelvic and sternal regions has important effect on the in-brace Cobb angles, lumbar lordosis, frontal and sagittal imbalances and the apical axial rotations. The complex role of the strap tension on the correction has not been explained and needs further investigation. This project has the potential to give insight into the biomechanical effects of brace treatment by providing a statistical model leading to more rational and personalized brace adjustments.

  13. Brace technology thematic series: the dynamic derotation brace

    PubMed Central

    2010-01-01

    Background The dynamic derotation brace (DDB) was designed in Greece in 1982, as a modification of the Boston brace. It is a custom-made, underarm spinal orthosis featuring aluminium blades set to produce derotating and anti-rotating effects on the thorax and trunk of patients with scoliosis. It is indicated for the non-operative correction of most curves, barring the very high thoracic ones, (when the apex vertebra is T5 or above). The purpose of this article is to familiarize physicians with the DDB, analyze the rationale behind its design, and present the published results of its application. Description & Principles The key feature of the DDB is the addition of the aluminium-made derotating blades posteriorly. These function as a force couple, which is added to the side forces exerted by the brace itself. Corrective forces are also directed through pads. One or more of previously proposed pathomechanical models of scoliosis may underline the corrective function of the DDB: it may act directly on the apical intervertebral disc, effecting correction through the Heuter-Volkman principle; the blades may produce an anti-rotatory element against the deforming "spiral composite muscle trunk rotator"; or it may alter the neuro-motor response by constantly providing new somatosensory input to the patient. Results Based on measurements of the Cobb and Perdriolle angles, up to 82% of patients remained stable or improved with the use of the DDB. Results have varied, though, depending on the type/location of the deformity. The overall results showed that 35% of the curves improved, 46% remained stable and 18% became worse, as assessed by measuring the Cobb angle. The DDB has also been shown to improve cosmesis (except for right thoracic curves) and leave several aspects of patient quality of life unaffected during use. Conclusion Conservative treatment of idiopathic scoliosis using the DDB has shown favorable results. Thoracic curves appear more resistant to both angular

  14. The role of bracing.

    PubMed

    Briem, Kristin; Ramsey, Daniel K

    2013-03-01

    Regular exercise and weight reduction are not only important for maintaining general health, they are also strongly recommended conservative modalities for managing knee osteoarthritis (OA). The objective of this paper is to discuss the mechanics of knee joint loading and to review the most recent literature with respect to the functionality and efficacy of unloader braces for managing knee OA, specifically from the perspective of the middle-aged athlete. Evidence suggests valgus braces for medial compartment knee OA significantly reduce knee adduction angle measures and improve measures relating to medial knee joint loading, as well as gait symmetry and speed. Benefits were demonstrated during walking and during more demanding functional measures such as running and negotiating stairs. No studies have investigated the efficacy of bracing for relatively young athletic OA patients and, thus, the role of bracing for this population during sports remains unclear. PMID:23314263

  15. Automatic locking knee brace joint

    NASA Technical Reports Server (NTRS)

    Weddendorf, Bruce (Inventor)

    1995-01-01

    This invention is an apparatus for controlling the pivotal movement of a knee brace comprising a tang-and-clevis joint that has been uniquely modified. Both the tang and the clevis have a set of teeth that, when engaged, can lock the tang and the clevis together. In addition, the tang is biased away from the clevis. Consequently, when there is no axial force (i.e., body weight) on the tang, the tang is free to pivot within the clevis. However, when an axial force is exerted on the tang, the tang is pushed into the clevis, both sets of teeth engage, and the tang and the clevis lock together.

  16. Locking mechanism for orthopedic braces

    NASA Technical Reports Server (NTRS)

    I-Lechao, J.; Epps, C. H., Jr. (Inventor)

    1976-01-01

    A locking mechanism for orthopedic braces is described which automatically prevents or permits the relative pivotable movement between a lower brace member and an upper brace member. The upper and lower brace members are provided with drilled bores within which a slidable pin is disposed, and depending upon the inclination of the brace members with respect to a vertical plane, the slidable pin will be interposed between both brace members. The secondary or auxiliary latching device includes a spring biased, manually operable lever bar arrangement which is manually unlatched and automatically latched under the influence of the spring.

  17. 11. Detail of sway braces, struts and top lateral braces' ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    11. Detail of sway braces, struts and top lateral braces' view to north-northwest - Milk River Bridge, Spanning Milk River approximately one mile north of Tampico on Tampico North Road, Tampico, Valley County, MT

  18. 2. ENVIRONMENT, FROM EAST, SHOWING BOSTON STREET BRIDGE CARRYING BOSTON ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. ENVIRONMENT, FROM EAST, SHOWING BOSTON STREET BRIDGE CARRYING BOSTON STREET OVER HARRIS CREEK SEWER - Boston Street Bridge, Spanning Harris Creek Sewer at Boston Street, Baltimore, Independent City, MD

  19. 1. ENVIRONMENT, FROM SOUTH, SHOWING BOSTON STREET BRIDGE CARRYING BOSTON ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. ENVIRONMENT, FROM SOUTH, SHOWING BOSTON STREET BRIDGE CARRYING BOSTON STREET OVER HARRIS CREEK SEWER OUTLET AT NORTHWEST BRANCH OF PATAPSCO RIVER (BALTIMORE HARBOR) - Boston Street Bridge, Spanning Harris Creek Sewer at Boston Street, Baltimore, Independent City, MD

  20. 3. ENVIRONMENT, FROM WEST, SHOWING BOSTON STREET BRIDGE CARRYING BOSTON ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. ENVIRONMENT, FROM WEST, SHOWING BOSTON STREET BRIDGE CARRYING BOSTON STREET OVER HARRIS CREEK SEWER, WITH PORTION OF AMERICAN CAN COMPANY COMPLEX - Boston Street Bridge, Spanning Harris Creek Sewer at Boston Street, Baltimore, Independent City, MD

  1. ORTHOPEDIC LEG BRACE

    NASA Technical Reports Server (NTRS)

    Myers, William Neil (Inventor)

    2005-01-01

    Knee braces generally have been rigid in both the knee bending direction and in the knee straightening direction unless a manually operated release is incorporated in them to allow the knee to bend. Desirably a braced knee joint should effectively duplicate the compound, complex, actions of a normal knee. The key to knee braces is the knee joint housing. The housing herein carries a number of cam action pawls. with teeth adapted to engage the internal teeth of a ratchet ring mounted in the housing. Cam action return springs and the shape of the cam action pawl teeth allow rotation of the ratchet ring in a leg straightening direction while still supporting a load. The leg can then be extended during walking while at the same time being prevented by the cam action pawls from buckling in the knee bending direction.

  2. Rockefeller braces for Baltimore.

    PubMed

    Culliton, B J

    1990-01-26

    In the article "Rockefeller braces for Baltimore" by Barbara J. Culliton (News & Comment, 12 Jan., p. 148), the pictures of David Baltimore and Joshua Lederberg were incorrectly credited. The credit for the Baltimore picture should have read, "M. Lampert, Boton." The credit for the Lederberg picture should have read, "Rockefeller University."

  3. Gait Using Pneumatic Brace for End-Stage Knee Osteoarthritis.

    PubMed

    Kapadia, Bhaveen H; Cherian, Jeffrey Jai; Starr, Roland; Chughtai, Morad; Mont, Michael A; Harwin, Steven F; Bhave, Anil

    2016-04-01

    More than 20 million individuals in the United States are affected by knee osteoarthritis (OA), which can lead to altered biomechanics and excessive joint loading. The use of an unloader pneumatic brace with extension assist has been proposed as a nonoperative treatment modality that may improve gait mechanics and correct knee malalignment. We assessed the following parameters in patients who have knee OA treated with and without a brace: (1) changes in temporospatial parameters in gait; (2) knee range of motion, knee extension at heel strike, and foot placement; (3) knee joint moments and impulse; and (4) changes in dynamic stiffness and rate of change of knee flexion during midstance to terminal stance. This 2:1 prospective, randomized, single-blinded trial evaluated 36 patients (24 brace and 12 matching). OA knee patients were randomized to receive either a pneumatic unloader brace or a standard nonoperative treatment regimen as the matching cohort for a 3-month period. They underwent evaluation of gait parameters using a three-dimensional gait analysis system at their initial appointment and at 3 months follow-up. All the testing, pre- and postbracing were performed without wearing the brace to examine for retained effects. Treatment with the brace led to significant improvements versus standard treatment in various gait parameters. Patients in the brace group had improvements in walking speed, knee extension at heel strike, total range of motion, knee joint forces, and rate of knee flexion from midstance to terminal stance when compared with the matching cohort. Knee OA patients who used a pneumatic unloader brace for 3 months for at least 3 hours per day had significant improvements various gait parameters when compared with a standard nonoperative therapy cohort. Braced patients demonstrated gait-modifying affects when not wearing the brace. These results are encouraging and suggest that this device represents a promising treatment modality for knee OA that

  4. Selectively Lockable Knee Brace

    NASA Technical Reports Server (NTRS)

    Myers, W. Neill (Inventor); Shadoan, Michael D. (Inventor); Forbes, John C. (Inventor); Baker, Kevin J. (Inventor); Rice, Darron C. (Inventor)

    1996-01-01

    A knee brace for aiding in rehabilitation of damaged leg muscles includes upper and lower housings normally pivotable one relative to the other about the knee joint axis of a patient. The upper housing is attachable to the thigh of the patient above the knee joint while the lower housing is secured to a stirrup which extends downwardly along the patient's leg and is attached to the patient's shoe. An actuation rod is carried within the lower housing and is coupled to a cable. The upper and lower housings carry cooperative clutch/brake elements which normally are disengaged to permit relative movement between the upper and lower housings. When the cable is extended the clutch/brake elements engage and lock the housings together. A heel strike mechanism fastened to the stirrup and the heel of the shoe is connected to the cable to selectively extend the cable and lock the brace in substantially any position when the patient places weight on the heel.

  5. Selectively lockable knee brace

    NASA Technical Reports Server (NTRS)

    Myers, Neill (Inventor); Shadoan, Mike (Inventor); Forbes, John (Inventor); Baker, Kevin (Inventor)

    1994-01-01

    A knee brace for aiding in rehabilitation of damaged leg muscles includes upper and lower housings, normally pivotable, one relative to the other about the knee joint axis of a patient. The upper housing is attachable to the thigh of the patient above the knee joint, while the lower housing is secured to a stirrup which extends downwardly along the patient's leg and is attached to the patient's shoe. An actuation rod is carried within the lower housing and is coupled to a cable. The upper and lower housings carry cooperative clutch/brake elements which normally are disengaged to permit relative movement between the upper and lower housings. When the cable is extended, the clutch/brake elements engage and lock the housings together. A heel strike mechanism fastened to the stirrup and the heel of the shoe is connected to the cable to selectively extend the cable and lock the brace in substantially any position when the patient places weight on the heel.

  6. 76 FR 36311 - Special Local Regulation; Extreme Sailing Series Boston; Boston Harbor, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-22

    ... Sailing Series Boston; Boston Harbor, Boston, Massachusetts, in the Federal Register (76 FR 20595). We... regatta. The event will take place over the course of five days in Boston Harbor in the vicinity of Fan... spectators on the adjacent Fan Pier in close proximity to the water and in a small area of water,...

  7. [Use of pneumatic braces in the rehabilitation of motor handicaps].

    PubMed

    Rideau, Y; Brault, J F; Caillaud, J

    1975-01-01

    The authors describe the advantages of pneumatic orthesis which are: On a mechanical standpoint the comfort related to the lightness and elasticity of the bracing allowing better walking, specialty in paraplegies from thoracic level. The rigidity of the orthesis can be changed by modifying the air-pressure and this type of bracing can be used in various diseases such as cerebral palsy or myopathies. On a social standpoint this type of orthesis can be obtained more rapidly than conventional ones. It allows a shorter hospitalization and, therefore, a better rehabilitation.

  8. New Generation Lockable Knee Brace

    NASA Technical Reports Server (NTRS)

    1996-01-01

    A knee brace that uses Space Shuttle propulsion technology has moved a step closer to being available to help knee injury and stroke patients and may possibly benefit patients with birth defects, spinal cord injuries, and post-polio conditions. After years of hard work, inventors at NASA's Marshall Space Flight Center (MSFC) in Huntsville, Alabama, have turned over the final design and prototype to industry partners at Horton's Orthotic Lab in Little Rock, Arkansas for further clinical testing. The device, called the Selectively Lockable Knee Brace, may mean faster, less painful rehabilitation for patients by allowing the knee to move when weight is not on the heel. Devices currently on the market lock the knee in a rigid, straight-leg position, or allow continuous free motion. Pictured here is a knee brace prototype being tested and fitted at Horton's Orthotic Lab. The knee brace is just one example of how space technology is being used to improve the lives of people on Earth. NASA's MSFC inventors Michael Shadoan and Neill Myers are space propulsion engineers who use the same mechanisms and materials to build systems for rockets that they used to design and develop the knee brace.

  9. Locking mechanism for orthopedic braces

    NASA Technical Reports Server (NTRS)

    Chao, J. I.; Epps, C. H., Jr.

    1981-01-01

    An orthopedic brace locking mechanism is described which under standing or walking conditions cannot be unlocked, however under sitting conditions the mechanism can be simply unlocked so as to permit bending of the patient's knee. Other features of the device include: (1) the mechanism is rendered operable, and inoperable, dependent upon the relative inclination of the brace with respect to the ground; (2) the mechanism is automatically locked under standing or walking conditions and is manually unlocked under sitting conditions; and (3) the mechanism is light in weight and is relatively small in size.

  10. Boston Infill Schools.

    ERIC Educational Resources Information Center

    Stull, Don; Heder, Lajos

    Concepts and recommendations are presented regarding a proposed system of dispersed classroom clusters or 'infill schools'. These small independent urban schools would be housed in prefabricated structures developed for infill housing in Boston. The infill unit uses pre-designed building components and can be constructed in a few weeks. The infill…

  11. Is Boston Burning?

    ERIC Educational Resources Information Center

    Alexander, Kelly M., Jr.

    1975-01-01

    An analysis of current and potential future problems facing efforts to desegregate Boston schools in which a number of suggestions are offered to facilitate the process of quality education for all by adequately preparing community, parent, and school personnel and nurturing student interracial initiatives. (EH)

  12. The North End Boston.

    ERIC Educational Resources Information Center

    Connally, Nicole; And Others

    Goals and objectives, student activities, and evaluations are contained in this guide for a one-day scavenger hunt through the North End of Boston. The culmination of a unit involving urban planning and land-use problems, the field trip is intended to give students first-hand experience with city life and a better understanding of urban issues…

  13. What's New in Boston?

    ERIC Educational Resources Information Center

    Hoffman, Morton Z.; Lichter, Robert

    2007-01-01

    The Big Dig, the multi-decade urban highway project has led to several changes in the U.S. most vulnerable city, Boston. Various parts of the city are being renovated to change the old tired industrial wasteland to a business and convention-oriented area.

  14. DIOXIN 2003 BOSTON

    EPA Science Inventory

    DIOXON 2003 BOSTON
    SESSION SUMMARY REPORT

    Toxicology of BFRs

    This oral session is comprised of seven presentations dealing with the potential health effects of BFRs. Talks involve both in vivo and in vitro studies in mice, rats, and cultured cells, and are from...

  15. New Generation Lockable Knee Brace

    NASA Technical Reports Server (NTRS)

    2000-01-01

    A knee brace that uses Space Shuttle propulsion technology has moved a step closer to being available to help knee injury and stroke patients and may possibly benefit patients with birth defects, spinal cord injuries, and post-polio conditions. After years of hard work, inventors at NASA's Marshall Space Flight Center (MSFC) in Huntsville, Alabama, have turned over the final design and prototype to industry partners at Horton's Orthotic Lab in Little Rock, Arkansas for further clinical testing. The device, called the Selectively Lockable Knee Brace, may mean faster, less painful rehabilitation for patients by allowing the knee to move when weight is not on the heel. Devices currently on the market lock the knee in a rigid, straight-leg position, or allow continuous free motion. The knee brace is just one example of how space technology is being used to improve the lives of people on Earth. NASA's MSFC inventors Michael Shadoan and Neill Myers are space propulsion engineers who use the same mechanisms and materials to build systems for rockets that they used to design and develop the knee brace.

  16. Impact of Rotation Correction after Brace Treatment on Prognosis in Adolescent Idiopathic Scoliosis

    PubMed Central

    Takigawa, Tomoyuki; Tanaka, Masato; Sugimoto, Yoshihisa; Arataki, Shinya; Ozaki, Toshifumi

    2016-01-01

    Study Design Level 4 retrospective review. Purpose Brace treatment is the standard nonoperative treatment for adolescent idiopathic scoliosis (AIS). Rotation correction is also important, because AIS involves a rotation deformity. The purpose of this study was to evaluate the impact of rotation correction after Osaka Medical College (OMC) brace treatment on clinical outcomes in AIS. Overview of Literature Brace treatment has a significant effect on the progression of AIS. However, few reports have examined rotation correction after brace treatment. Methods A total of 46 patients who wore the OMC brace were retrospectively reviewed. The curve magnitude was determined according to the Cobb method, and the rotation angle of the apical vertebrae was measured by the modified Nash-Moe method. Based on the difference in the rotation angle before and after the initial brace treatment, patients were divided into two groups. Group A (n=33) was defined as no change or improvement of the rotation angle; group B (n=13) was defined as deterioration of the rotation angle. If the patients had curve or rotation progression of 5° or more at skeletal maturity, or had undergone surgery, the treatment was considered a failure. Results Differences of rotation angle between before and after the initial brace treatment were 2°±2° in group A and –3°±2° in group B (p<0.001). The rates of treatment failure were 42% in group A and 77% in group B (p<0.05). This study included 25 patients with Lenke type 1 (54%). Group A (24%) with Lenke type 1 also had a significantly better success rate of brace treatment than group B (75%) (p<0.05). Conclusions Insufficient rotation correction increased brace treatment failure. Better rotation correction resulted in a higher success rate of brace treatment in patients with Lenke type 1. PMID:27790317

  17. Can Bracing Affect Altered Gait Patterns in Femoroacetabular Impingement

    PubMed Central

    Safran, Marc R.; Rylander, Jonathan; Shu, Beatrice; Andriacchi, Thomas P.

    2013-01-01

    Objectives: Altered gait patterns have been identified in patients with Femoroacetabular impingement (FAI), a 2nd order reversal in mid stance, that has been shown to be corrected with arthroscopic FAI surgery. Currently, most feel there is no adequate conservative treatment for this malady. The goal of this study is to determine if the gait abnormalities seen with femoroacetabular impingement (FAI) can be modified with bracing. Methods: Eight individuals (4 Male, 34.5 ± 12.8 y.o., 24.0±2.3 BMI) who were diagnosed with FAI after reporting to clinic with groin pain were enrolled in this study. The study was approved by the University Internal Review Board before participants were enrolled. History, clinical exam, and imaging including an AP pelvis and cross table lateral radiograph of the affected hip and MR-arthrogram of the affected hip were utilized to make the diagnosis. Participants who enrolled had primarily unilateral hip symptoms, had positive impingement and labral stress tests on the affected side and were free of other lower extremity, back, and spine disorders. Three dimensional lower limb kinematics were collected using a camera and forceplate system with the subjects wearing reflective markers on anatomical landmarks. Participants were tested prior to surgery. Hip kinematics were collected for the symptomatic limb while the patients walked at a self selected normal walking speed, slowly jogged, and ascended a two stair setup. Three trials for each activity were completed with and without wearing a brace that was designed to externally rotate the femur in the treatment of patellofemoral disorders for a total of 6 trials per activity. Peak hip flexion, extension, abduction, adduction, internal rotation, and external rotation were calculated over the stance phase for each trial. Averages were calculated over the 3 trials for each activity both with and without the brace. Intra-subject differences were compared between the braced and unbraced trials

  18. Boston Collaborative Drug Surveillance Program

    Cancer.gov

    The Boston Collaborative Drug Surveillance Program started in 1966 and conducted epidemiologic research to quantify the potential adverse effects of prescription drugs, utilizing in-hospital monitoring.

  19. Project ASTRO BOSTON

    NASA Astrophysics Data System (ADS)

    Clemens, C. M.; Harnden, F. R., Jr.; Dunne, Marianne

    2000-12-01

    At sites chosen by the Astronomical Society of the Pacific throughout the country, Project ASTRO forms and supports partnerships between teachers and astronomers in order to instill a life-long love of astronomy and nature in grade-school students. Begun in Massachusetts in April 1998, and hosted jointly by the Boston Museum of Science and the Harvard-Smithsonian Center for Astrophysics, Project ASTRO Boston (PAB) has trained 72 teachers and 60 astronomers over the past three years. PAB schools from the Greater Boston area and southern New Hampshire include public or charter schools, community centers or camps and private schools. PAB is an education program designed to help students, teachers and astronomers. Teachers not only receive valuable training and materials but most also report a renewed enthusiasm toward teaching. Astronomers gain insight into the teaching process and a better understanding of the public's comprehension (and misconceptions!) of science and astronomical concepts. Students show a very noticeable increase in interest toward science as a result of their interactions in PAB. This year Massachusetts has reissued science standards that serve as baselines for the curricula produced by most town school systems. PAB has expanded to grades 2 through 12 in order to help different districts (which teach astronomy in different grades) address these new standards better. The new MCAS tests are given in grades 4, 8 and 10, and passing these tests is now a requirement for high school graduation. PAB helps with MCAS preparation not only because it covers astronomy and the scientific process, but also because it covers writing, especially with journals, and because many of the activities span the curriculum.

  20. Bracing micro/macro manipulators control

    SciTech Connect

    Lew, J.Y.; Book, W.J.

    1994-05-01

    This paper proposes a bracing strategy for micro/macro manipulators. The bracing micro/macro manipulator can provide advantages in accurate positioning, large work-space, and contact-task capability however, in exchange for improvement in performance one must accept the complex control problem along wit the complex dynamics. This research develops a control scheme for a bracing manipulator which makes multiple contacts with the environment. Experimental results show the feasibility of the proposed ideas for real world applications.

  1. Boston: Cradle of American Independence

    ERIC Educational Resources Information Center

    Community College Journal, 2004

    2004-01-01

    The 2005 American Association of Community Colleges Annual Convention will be held April 6-9 in Boston. While thoroughly modern, the iconic city's identity is firmly rooted in the past. As the cradle of American independence, Boston's long history is an integral part of the American fabric. Adams, Revere, Hancock are more than historical figures;…

  2. Boston Washer Study

    SciTech Connect

    Tomlinson, J.J.

    2002-08-06

    To help understand the relative performance gains of conventional and high-efficiency washers and to increase awareness of energy/water savings, the U.S. Department of Energy under its Emerging Technologies Program and in cooperation with Maytag Appliances conducted a field-evaluation of horizontal axis washers in a Boston, Massachusetts condo complex. Baseline washer and dryer performance and customer habits were established using 50 participants and their existing, instrumented washers and dryers for a 2 1/2-month period. After the baseline was established, the machines were replaced with high efficiency tumble action washers and moisture sensing dryers, and tested for the next 2 1/2 months. By information gathered, energy and water savings delivered by the h-axis washers as well as impacts on participants' washing habits and perceptions of cleaning performance were determined. Overall, participants saved 41% of the water and 50% of the energy that they would have used without a changeover to the new h-axis washer. The changeover also produced significant dryer energy savings due primarily to the high-speed final spin of the new washer. The Boston Washer Study report details the experiment including instrumentation, data collection and analysis procedures and discusses the impacts on energy, water and detergent consumption as well as customer satisfaction with the technology.

  3. 76 FR 35013 - Minor Boundary Revision of Boston National Historical Park

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-15

    ... National Park Service Minor Boundary Revision of Boston National Historical Park AGENCY: National Park..., pursuant to 16 U.S.C. 460l- 9(c)(1), the boundary of Boston National Historical Park is modified to include... without cost by enactment of Chapter 37 of the Laws of 2009, on July 23, 2009, subject to the...

  4. 33 CFR 165.119 - Safety Zone; Captain of the Port Boston Fireworks display zones, Boston Harbor, Boston, MA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Boston Fireworks display zones, Boston Harbor, Boston, MA. 165.119 Section 165.119 Navigation and... Areas First Coast Guard District § 165.119 Safety Zone; Captain of the Port Boston Fireworks display... radius of the fireworks barge in approximate position 42°22′12.7″ N 071°02′53″ W (NAD 1983), located...

  5. Knee Brace Would Lock And Unlock Automatically

    NASA Technical Reports Server (NTRS)

    Myers, Neill; Forbes, John; Shadoan, Mike; Baker, Kevin

    1995-01-01

    Proposed knee brace designed to aid rehabilitation of person who suffered some muscle damage in leg. Not limited to locking in straight-leg position and, instead, locks at any bend angle. Does not prevent knee from bearing weight. Instead, knee brace allows knee to bear weight and locks only when foot and lower leg bear weight. Thus, brace prevents flexion that wearer desired to prevent but could not prevent because of weakened muscles. Knee bends freely to exercise knee-related muscles. Knee brace strapped at upper end to leg above knee, and anchored at lower end by stirrup under foot. Joint mechanism (identical mechanisms used in left and right assemblies) allows knee joint to flex freely except when weight applied to heel.

  6. Power Tool Would Require Little Bracing Torque

    NASA Technical Reports Server (NTRS)

    Canniff, Joseph H.

    1995-01-01

    Proposed rotary power tool exerts required torque on workpiece, but little or no bracing torque applied to tool to keep it from turning in opposite direction. Instead, working torque neutralized by nearly equal and opposite torque generated within tool. Used easily underwater, on slippery surfaces, or in other environments in which external bracing of tool against rotation difficult or impossible. Minimizes armbreaking forces resulting from tool binding.

  7. On immediate functional bracing of Colles' fracture.

    PubMed

    Ledingham, W M; Wytch, R; Goring, C C; Mathieson, A B; Wardlaw, D

    1991-05-01

    A prospective randomized trial was carried out in 60 consecutive patients with Colles' fractures requiring manipulation. They were treated by either a standard Colles' plaster (control group) or in a functional plaster brace applied immediately after reduction of the fracture. The brace extended from the proximal radius and ulna to the level of the radial styloid and allowed a full range of movement at the radiocarpal joint. Both groups comprised 30 patients and were matched for age, sex and dominance of hand. There was no significant difference in initial severity of fracture or the quality of reduction. Radiological results on cast removal (35-42 days) were significantly better in the brace group compared with those treated with a below-elbow cast (P less than 0.05). Wrist function was also significantly better in the brace treated group at 12 weeks after fracture (P less than 0.05). This brace has a number of advantages over standard plaster treatment, but requires a degree of skill and experience in its application. A prefabricated brace has now been developed with a similar 'built in' three-point loading which will be easier for inexperienced staff to apply.

  8. LOOKING NORTHEAST TOWARD NORTHERN AVE. SWING BRIDGE. BOSTON TEA PARTY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    LOOKING NORTHEAST TOWARD NORTHERN AVE. SWING BRIDGE. BOSTON TEA PARTY SHIP AT ANCHOR IN FOREGROUND. - Northern Avenue Swing Bridge, Spanning Fort Point Channel at boundary between Boston & South Boston, Boston, Suffolk County, MA

  9. 33 CFR 165.120 - Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., Boston Inner Harbor, Boston, MA. 165.120 Section 165.120 Navigation and Navigable Waters COAST GUARD... § 165.120 Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA. (a) Location. The following area... downstream of the Chelsea Street Bridge on the Chelsea, MA side of the Chelsea River—hereafter referred to...

  10. 33 CFR 165.120 - Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ..., Boston Inner Harbor, Boston, MA. 165.120 Section 165.120 Navigation and Navigable Waters COAST GUARD... § 165.120 Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA. (a) Location. The following area... downstream of the Chelsea Street Bridge on the Chelsea, MA side of the Chelsea River—hereafter referred to...

  11. School Treasures: Architecture of Historic Boston Schools.

    ERIC Educational Resources Information Center

    Cole, Doris

    This book contains photographs and descriptions of the Boston Public Schools, Massachusetts, explaining that the Boston Public Schools include about 129 buildings that were constructed in the late 19th century and throughout the 20th century and noting that the first and oldest public school in the United States was founded in Boston in 1635.…

  12. Boston Structure Supports School Leaders

    ERIC Educational Resources Information Center

    Takata, Jennifer Welsh

    2008-01-01

    Boston Public Schools, winner of the 2006 Broad Prize for Urban Education, creates innovative programs to develop school leaders based on the idea that "school leadership is the single most important factor in schools' success." Teachers play an invaluable role in determining the quality of classroom instruction, but a principal is, in the words…

  13. Chord Splicing & Joining Detail; Chord & CrossBracing Joint Details; ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Chord Splicing & Joining Detail; Chord & Cross-Bracing Joint Details; Cross Bracing Center Joint Detail; Chord & Diagonal Joint Detail - Vermont Covered Bridge, Highland Park, spanning Kokomo Creek at West end of Deffenbaugh Street (moved to), Kokomo, Howard County, IN

  14. 20. DETAIL, TYPICAL LEG CONNECTION, CROSS BRACING AT LEG, WITH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    20. DETAIL, TYPICAL LEG CONNECTION, CROSS BRACING AT LEG, WITH CROSSED BRACE BLOCK, GROUND WIRES AND GUIDE WIRE. - Hat Point Fire Lookout Tower, Forest Service Road #4340, 24 miles from Imnaha, Imnaha, Wallowa County, OR

  15. Plan Showing Cross Bracing Under Upper Stringers, Typical Section Showing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Plan Showing Cross Bracing Under Upper Stringers, Typical Section Showing End Framing, Plan Showing Cross Bracing Under Lower Stringers, End Elevation - Covered Bridge, Spanning Contoocook River, Hopkinton, Merrimack County, NH

  16. 14. View of swing truss apex with major sway bracing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. View of swing truss apex with major sway bracing and bottom latticed strut members, with knee braces below. (Nov. 25, 1988) - University Heights Bridge, Spanning Harlem River at 207th Street & West Harlem Road, New York County, NY

  17. The use of knee braces, part 1: Prophylactic knee braces in contact sports.

    PubMed

    Najibi, Soheil; Albright, John P

    2005-04-01

    Surrogate knee model biomechanical studies have indicated that off-the-shelf braces provide 20% to 30% greater resistance to a lateral blow when the knee is in full extension. Custom functional braces doubled the protective effects and proved effective with the knee in some flexion. Although functional performance studies are not consistent, preventive knee braces may slow straight-ahead sprint speed, cause early fatigue, and increase muscular relaxation pressures, energy expenditure, blood lactate levels, maximal torque output, oxygen consumption, and heart rate. Two epidemiologic studies have been performed. At West Point, a randomized control study of 71 injuries in 1396 cadets indicated knee brace effectiveness with a statistically higher rate of injury in the control group (3.4/1000 exposures) than in the braced group (1.5/1000 exposures), with the most significance for medial collateral ligament sprains in defensive players. The Big Ten Conference conducted a descriptive study of 100 medial collateral ligament sprains among 987 players in different positions, strings, and types of session. Brace-wear tendency varied directly with the unbraced player counterpart's risk of medial collateral ligament sprain, with the nonplayer linemen experiencing both the greatest risk of unbraced practice session injury (0.0801 injuries/1000 exposures) and the highest incidence of brace wear (85%). During practices, there was a nonsignificant but very consistent reduction in injury rate for braced players in every position and string. During games, there was also a reduced rate for linemen and the linebacker/tight end group. The study concluded that although the issue is not closed, preventive knee braces appear to offer some protection to the medial collateral ligament from a contact injury involving a valgus blow, but there may be negative effects on performance level, leg cramping, and fatigue symptoms. PMID:15788733

  18. Effect of Kınesıotapıng and Knee Brace on Functıonal Performance in Recreatıonal Athletes

    PubMed Central

    Ulusoy, Burak; İldiz, Bülent; Tunay, Volga Bayrakçı

    2014-01-01

    Objectives: Kinesiotaping is a popular taping method that is used for both therapeutic and performance enchancement purposes. Knee braces are widely used for prevention in sport injuries but their performance effectiveness is still controversial. The aim of this study was to determine whether kinesiotape or brace was more effective on functional performance. Methods: A total twenty male recreational football players (Mean±Standart Deviation (SD) age: 22.5±0.68 years, height: 175.15±3.37 cm, body weight: 74.52±12.41 kg), voluntarily participated in this study. Participants were tested with kinesiotape, with brace and without kinesiotape and brace. Tests were applied one day after patellar kinesiotaping (correction technique). Balance property measured with Modified Y balance Test (dynamic test), agility measured by T test, muscle strength and anaerobic power assessed by vertical jump and triple hop tests. Wilcoxon signed rank test was employed for determining the statistical significance of tests with kinesiotape, with brace and without kinesiotape and brace. Results: In analysis; There were statistically significant differences found in Triple hop test with kinesiotaping and without kinesiotaping and brace, in T test with bracing and kinesiotaping, in vertical jump with kinesiotaping and without kinesiotaping and brace (p<0.001) (in the favour of kinesiotaping in all tests) No statistically significant difference was found in modified Y balance test all groups (p> 0.05). Conclusion: Consequently, kinesiotaping had positive effects on agility and muscle strength but had no effects on balance in football players. On the other hand, brace had no effects on functional performance tests.

  19. 77 FR 50916 - Safety Zone; Boston Harbor's Rock Removal Project, Boston Inner Harbor, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-23

    ... INFORMATION: Table of Acronyms DHS Department of Homeland Security FR Federal Register NPRM Notice of Proposed...) Zone for the drilling, blasting, and dredging operation on the navigable waters of Boston Inner Harbor... navigable waters during the drilling, blasting and dredging operations in support of the U.S. Army Corps...

  20. 21 CFR 882.4325 - Cranial drill handpiece (brace).

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Cranial drill handpiece (brace). 882.4325 Section... (CONTINUED) MEDICAL DEVICES NEUROLOGICAL DEVICES Neurological Surgical Devices § 882.4325 Cranial drill handpiece (brace). (a) Identification. A cranial drill handpiece (brace) is a hand holder, which is...

  1. 21 CFR 882.4325 - Cranial drill handpiece (brace).

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Cranial drill handpiece (brace). 882.4325 Section... (CONTINUED) MEDICAL DEVICES NEUROLOGICAL DEVICES Neurological Surgical Devices § 882.4325 Cranial drill handpiece (brace). (a) Identification. A cranial drill handpiece (brace) is a hand holder, which is...

  2. 21 CFR 882.4325 - Cranial drill handpiece (brace).

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Cranial drill handpiece (brace). 882.4325 Section... (CONTINUED) MEDICAL DEVICES NEUROLOGICAL DEVICES Neurological Surgical Devices § 882.4325 Cranial drill handpiece (brace). (a) Identification. A cranial drill handpiece (brace) is a hand holder, which is...

  3. 21 CFR 882.4325 - Cranial drill handpiece (brace).

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Cranial drill handpiece (brace). 882.4325 Section... (CONTINUED) MEDICAL DEVICES NEUROLOGICAL DEVICES Neurological Surgical Devices § 882.4325 Cranial drill handpiece (brace). (a) Identification. A cranial drill handpiece (brace) is a hand holder, which is...

  4. 21 CFR 882.4325 - Cranial drill handpiece (brace).

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Cranial drill handpiece (brace). 882.4325 Section... (CONTINUED) MEDICAL DEVICES NEUROLOGICAL DEVICES Neurological Surgical Devices § 882.4325 Cranial drill handpiece (brace). (a) Identification. A cranial drill handpiece (brace) is a hand holder, which is...

  5. 49 CFR 195.208 - Welding of supports and braces.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 3 2014-10-01 2014-10-01 false Welding of supports and braces. 195.208 Section 195.208 Transportation Other Regulations Relating to Transportation (Continued) PIPELINE AND HAZARDOUS... HAZARDOUS LIQUIDS BY PIPELINE Construction § 195.208 Welding of supports and braces. Supports or braces...

  6. 49 CFR 195.208 - Welding of supports and braces.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 3 2013-10-01 2013-10-01 false Welding of supports and braces. 195.208 Section 195.208 Transportation Other Regulations Relating to Transportation (Continued) PIPELINE AND HAZARDOUS... HAZARDOUS LIQUIDS BY PIPELINE Construction § 195.208 Welding of supports and braces. Supports or braces...

  7. 49 CFR 195.208 - Welding of supports and braces.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 3 2012-10-01 2012-10-01 false Welding of supports and braces. 195.208 Section 195.208 Transportation Other Regulations Relating to Transportation (Continued) PIPELINE AND HAZARDOUS... HAZARDOUS LIQUIDS BY PIPELINE Construction § 195.208 Welding of supports and braces. Supports or braces...

  8. 49 CFR 195.208 - Welding of supports and braces.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 3 2010-10-01 2010-10-01 false Welding of supports and braces. 195.208 Section 195.208 Transportation Other Regulations Relating to Transportation (Continued) PIPELINE AND HAZARDOUS... HAZARDOUS LIQUIDS BY PIPELINE Construction § 195.208 Welding of supports and braces. Supports or braces...

  9. 49 CFR 195.208 - Welding of supports and braces.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 3 2011-10-01 2011-10-01 false Welding of supports and braces. 195.208 Section 195.208 Transportation Other Regulations Relating to Transportation (Continued) PIPELINE AND HAZARDOUS... HAZARDOUS LIQUIDS BY PIPELINE Construction § 195.208 Welding of supports and braces. Supports or braces...

  10. DSM renewable opportunities in Boston

    SciTech Connect

    Tennis, M.W.; Nogee, A.J.; Coakley, S.; Schoengold, D.

    1995-11-01

    The Union of Concerned Scientists (UCS), in conjunction with MSB Energy Associates, conducted a study for the Boston Edison Demand-Side Management (DSM) Settlement Board on the potential for DSM renewables in the Boston area. DSM renewables are resources that can be used in a distributed utility approach to avoid transmission and distribution (T and D) costs, as well as costs associated with operating and building power plants. The results show that avoided costs in areas with deferrable T and D investments can be nearly twice as high as system-wide average avoided costs. As a result, renewable technologies that might not be considered cost effective as DSM under system-wide average criteria, can produce large shavings for the utility and its customers. Adopting a deliberate program designed to provide sustained orderly development of these renewables is essential in order for renewable technologies to achieve the maximum level of cost-effectiveness and net savings.

  11. Prophylactic Knee Braces: Where Do They Stand?

    ERIC Educational Resources Information Center

    McCarthy, Paul

    1988-01-01

    The effectiveness of knee braces in preventing knee injuries in football is inconclusive. This article reviews research from epidemiologic, cadaver, and surrogate studies; discusses reasons for conflicting study results, including research design problems; and describes alternative approaches that have been suggested. (IAH)

  12. Seismic Performance Evaluation of Concentrically Braced Frames

    NASA Astrophysics Data System (ADS)

    Hsiao, Po-Chien

    Concentrically braced frames (CBFs) are broadly used as lateral-load resisting systems in buildings throughout the US. In high seismic regions, special concentrically braced frames (SCBFs) where ductility under seismic loading is necessary. Their large elastic stiffness and strength efficiently sustains the seismic demands during smaller, more frequent earthquakes. During large, infrequent earthquakes, SCBFs exhibit highly nonlinear behavior due to brace buckling and yielding and the inelastic behavior induced by secondary deformation of the framing system. These response modes reduce the system demands relative to an elastic system without supplemental damping. In design the re reduced demands are estimated using a response modification coefficient, commonly termed the R factor. The R factor values are important to the seismic performance of a building. Procedures put forth in FEMAP695 developed to R factors through a formalized procedure with the objective of consistent level of collapse potential for all building types. The primary objective of the research was to evaluate the seismic performance of SCBFs. To achieve this goal, an improved model including a proposed gusset plate connection model for SCBFs that permits accurate simulation of inelastic deformations of the brace, gusset plate connections, beams and columns and brace fracture was developed and validated using a large number of experiments. Response history analyses were conducted using the validated model. A series of different story-height SCBF buildings were designed and evaluated. The FEMAP695 method and an alternate procedure were applied to SCBFs and NCBFs. NCBFs are designed without ductile detailing. The evaluation using P695 method shows contrary results to the alternate evaluation procedure and the current knowledge in which short-story SCBF structures are more venerable than taller counterparts and NCBFs are more vulnerable than SCBFs.

  13. A self-reconfigurable manipulator system with dextrous bracing structure

    NASA Technical Reports Server (NTRS)

    Lee, Sukhan; Kim, Sungbok

    1991-01-01

    The authors present a dextrous bracing structure of a dual-arm system as a means of implementing a self-reconfigurable manipulator system. The dextrous bracing structure allows a dual-arm system to relocate the bracing point between two arms, select the type of contact as the bracing point, and lock or release the joints of individual arms. The self-reconfigurable dual-arm system is now capable of reconfiguring its topology through serial, parallel and bracing structures, supporting general types of contact, rigid or sliding, as well as locking or releasing some of its joints as needed. The focus is on an analysis of the effects of the dextrous bracing on the performance of a dual-arm system in terms of dual-arm manipulabilities and resistivities. The analysis shows that a self-reconfigurable dual-arm system with a dextrous bracing structure gives continuously varying performance characteristics ranging from serial to parallel structures.

  14. Boston, Massachusetts: Solar in Action (Brochure)

    SciTech Connect

    Not Available

    2011-10-01

    This brochure provides an overview of the challenges and successes of Boston, MA, a 2007 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given. The City of Boston and its Solar America Cities program, Solar Boston, are helping to debunk the myth that solar energy is only feasible in the southern latitudes. Boston has some of the highest energy prices in the country and will likely be one of the first locations where solar power achieves grid parity with conventional energy technologies. Solar Boston is facilitating the rapid development of solar energy projects and infrastructure in the short-term, and is preparing for the rapid market growth that is expected with the imminent arrival of grid parity over the long-term. Solar Boston developed the strategy for achieving Mayor Menino's goal of installing 25 MW of solar energy throughout Boston by 2015. Through Solar Boston, the city has developed a strategy for the installation of solar technology throughout Boston, including mapping feasible locations, preparing a permitting guide, and planning the citywide bulk purchase, financing, and installation of solar technology. The city has also worked with local organizations to maximize Boston's participation in state incentive programs and innovative financing initiatives. The resulting accomplishments include the following: (1) Created an online map of current local renewable energy projects with a tool to allow building owners to calculate their rooftop solar potential. The map is currently live at http://gis.cityofboston.gov/solarboston/. (2) Supported the city's Green Affordable Housing Program (GAHP), in partnership with the Department of Neighborhood Development (DND). Under GAHP, the city is installing more than 150 kW of PV on 200 units of affordable housing. DND requires that all new city-funded affordable housing be LEED silver certified and

  15. Racial Segregation and Educational Outcomes in Metropolitan Boston. Metro Boston Equity Initiative. Issue Summary No.6

    ERIC Educational Resources Information Center

    Lee, Chungmei

    2004-01-01

    This report takes a look at the issues concerning racial segregation and educational outcomes in Metropolitan Boston. Despite the fact that metro Boston is overwhelmingly white, its public schools are highly segregated by race and language. Segregated minority schools in metro Boston are profoundly unequal, with high poverty levels, with lower…

  16. 76 FR 37005 - Safety Zone; Fan Pier Yacht Club Fireworks, Boston Harbor, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-24

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Fan Pier Yacht Club Fireworks, Boston... establishing a temporary safety zone within the Sector Boston Captain of the Port (COTP) Zone for the Fan Pier... read as follows: Sec. 165.T01-437 Safety Zone; Fan Pier Yacht Club Fireworks, Boston Harbor,...

  17. Nuclear reactor with fuel pin bracing grid

    SciTech Connect

    Jolly, R.

    1980-01-01

    A fuel pin bracing grid for a nuclear fuel sub-assembly comprises a honeycomb array of unit cells formed from discrete strips. The cells are hexagonal, three alternate sides having windows and the remaining sides have linear groups of three embossments to provide guide pads for fuel pins. The openings provide a measure of compliancy for the grid to facilitate insertion and withdrawal of the pins. A fuel sub-assembly for a liquid metal cooled fast breeder nuclear reactor has a central fuel section with end extensions, the fuel section comprising a bundle of fuel pins in a hexagonal wrapper the pins being braced by a series of grids according to the invention. Reprocessing of the fuel is facilitated because the pins are withdrawable collectively from the compliant grids and wrapper combination merely by cutting an end extension from the wrapper. 4 claims.

  18. Braces and the Yang-Baxter Equation

    NASA Astrophysics Data System (ADS)

    Cedó, Ferran; Jespers, Eric; Okniński, Jan

    2014-04-01

    Several aspects of relations between braces and non-degenerate involutive set-theoretic solutions of the Yang-Baxter equation are discussed and many consequences are derived. In particular, for each positive integer n a finite square-free multipermutation solution of the Yang-Baxter equation with multipermutation level n and an abelian involutive Yang-Baxter group is constructed. This answers a problem of Gateva-Ivanova and Cameron. It is proved that finite non-degenerate involutive set-theoretic solutions of the Yang-Baxter equation whose associated involutive Yang-Baxter group is abelian are multipermutation solutions. Earlier the authors proved this with the additional square-free hypothesis on the solutions. It is also proved that finite square-free non-degenerate involutive set-theoretic solutions associated to a left brace are multipermutation solutions.

  19. Vibration of x-braced portal frames

    NASA Astrophysics Data System (ADS)

    Chang, C. H.; Wang, P. Y.; Lin, Y. W.

    1987-09-01

    Both free and forced vibrations of elastic X-braced portal frames are investigated. Solutions of the Euler-Bernoulli equation for the transverse vibration coupled with the axial vibration are used. The first five natural frequencies, with the angle of inclination, α, of the bracing bars ranging from 15° to 75°, with different slenderness ratios, R, of the columns, and different stiffness of the floor beam and crossing bars, are presented along with two sets of the natural modes of the frames with α = 45°. For the forced vibration, the dynamic responses of the frames with a concentrated horizontal time dependent force acting at a top joint are studied. The responses of the frames with α = 45° are analyzed in detail.

  20. [Ankle braces prevent ligament injuries].

    PubMed

    Karlsson, Jon

    2002-09-01

    The Cochrane collaboration has performed a meta-analysis of all studies found on the prevention of ankle ligament injuries, frequent in sports like soccer, European handball and basketball. Interventions include the use of modified footwear and associated supports, training programmes and health education. Five randomized trials totalling 3,954 participants were included. With the exception of ankle disc training, all prophylactic interventions entailed the application of an external ankle support in the form of a semi-rigid orthosis, air-cast or high top shoes. The studies showed a significant reduction in the number of ankle sprains in individuals allocated to external ankle support. This reduction was greater for those with a previous history of ankle sprains.

  1. New rain shed (Building No. 241) interior showing posts, braces, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    New rain shed (Building No. 241) interior showing posts, braces, and roof structure. - Hawaii Volcanoes National Park Water Collection System, Hawaii Volcanoes National Park, Volcano, Hawaii County, HI

  2. 54. VIEW SHOWING THE PLACEMENT OF SPIDER WEB BRACING, SHOOFLY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    54. VIEW SHOWING THE PLACEMENT OF SPIDER WEB BRACING, SHOOFLY BRIDGE, January 1935 - Sacramento River Bridge, Spanning Sacramento River at California State Highway 275, Sacramento, Sacramento County, CA

  3. Brace treatment for patients with Scheuermann's disease - a review of the literature and first experiences with a new brace design

    PubMed Central

    Weiss, Hans-Rudolf; Turnbull, Deborah; Bohr, Silvia

    2009-01-01

    Background In contemporary literature few have written in detail on the in-brace correction effects of braces used for the treatment of hyperkyphosis. Bradford et al. found their attempts effective, treating Scheuermann's kyphosis with Milwaukee braces, but their report did not specifically focus on in-brace corrections. White and Panjabi's research attempted to correct a curvature of > 50° with the help of distraction forces, but consequently led to a reduction in patient comfort in the application of the Milwaukee brace. In Germany they avoid this by utitlising braces to treat hyperkyphosis that use transverse correction forces instead of distraction forces. Further efforts to reduce brace material have resulted in a special bracing design called kyphologic™ brace. The aim of this review is to present appropriate research to collect and evaluate possible in-brace corrections which have been achieved with brace treatment for hyperkyphosis. This paper introduces new methods of bracing and compares the results of these with other successful bracing concepts. Materials and methods 56 adolescents with the diagnosis of thoracic Scheuermann's hyperkyphosis or a thoracic idiopathic hyperkyphosis (22 girls and 34 boys) with an average age of 14 years (12-17 yrs.) were treated with the kyphologic™ brace between May 2007 and December 2008. The average Stagnara angle was 55,6° (43-80). In-brace correction was recorded and compared to the initial angle using the t-test. Results The average Stagnara angle in the brace was 39°. The average in-brace correction was 16.5° (1-40°). The verage percentage of in-brace correction compared to the initial value was 36%. The differences were significant in the t-test (t = 5.31, p < 0,001). To make these results comparable to other studies, the kyphosis angle of 25° was set to 0 for our sample in order to achieve a norm value adapted (NVA) percentage of in-brace correction. By doing this a correction of 54.1% was achieved. There

  4. Outcome of humeral shaft fractures treated by functional cast brace

    PubMed Central

    Pal, Jitendra Nath; Biswas, Prahas; Roy, Avik; Hazra, Sunit; Mahato, Somnath

    2015-01-01

    . Results: The results were assessed using 100 point scoring system where union allotted 30 points and 60 points allotted for angulations (10), elbow motion (10), shoulder abduction (10), shortening (5), rotation (5), absence of infection (10), absence of nerve palsy during treatment (10). Remaining 10 points were allotted for five items with two points each. They were the absence of skin sore, absence of vascular problem, absence of reflex sympathetic dystrophy (RSD), recovery of paralyzed nerve during injury and recovery of paralyzed nerve during treatment. Results were considered excellent with 90 and above, good with 80–89, fair with 70–79 and poor below 70 point. Results at 6 months were excellent in 43.94% (n = 29), good in 42.42% (n = 28), fair in 9.1% (n = 6), poor in 4.55% (n = 3). Union took place in 98.48% (n = 65) with an average of 10.3 weeks (range 6–16 weeks). 87.5% (n = 7) paralyzed radial nerve recovered. All wounds healed. Four patients had transient skin problem. One patient with mid shaft fracture had nonunion due to the muscle interposition. Conclusion: Modified functional cast brace is one of the options in treatment for humeral shaft fractures as it can be applied on the 1st day of the presentation in most of the situations. Simple objective scoring system was useful particularly in uneducated patients. PMID:26229161

  5. Panel Post & Diagonal Brace Joint Detail; Crossbracing Center Joint ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Panel Post & Diagonal Brace Joint Detail; Crossbracing Center Joint Detail; Chord, Panel Post, Tie Bar, & Diagonal Brace Joint Detail; Chord, Tie Bar, & Crossbracing Joint Detail - Medora Bridge, Spanning East Fork of White River at State Route 235, Medora, Jackson County, IN

  6. Chord Panel Post, Vertical X Bracing & Horizontal Tie Joint ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Chord Panel Post, Vertical X Bracing & Horizontal Tie Joint Detail; Chord Joining Block & Spacer Block Detail; Cross Bracing Joint Detail; Chord Panel Post Diagonal & Horizontal Tie Joint Detail - Jackson Covered Bridge, Spanning Sugar Creek, CR 775N (Changed from Spanning Sugar Creek), Bloomingdale, Parke County, IN

  7. I Have Braces: How Can I Eat Fruits and Veggies?

    MedlinePlus

    ... Cuts? I Have Braces. How Can I Eat Fruits and Veggies? KidsHealth > For Teens > I Have Braces. How Can I Eat Fruits and Veggies? Print A A A Text Size ... weight. I read about eating 5 servings of fruits and veggies a day. But I can't ...

  8. 19. DETAIL VIEW SHOWING POINT OF CONNECTION OF SWAY BRACING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    19. DETAIL VIEW SHOWING POINT OF CONNECTION OF SWAY BRACING TO UPSTREAM ARCH RIB AT SPRING POINT FROM SOUTH ABUTMENT, LOOKING EAST-NORTHEAST. NOTE CRACK VISIBLE NEAR TOP OF SWAY BRACING AT LEFT CENTER, PROBABLY DUE TO RUST JACKING OF REINFORCING STEEL - Chili Bar Bridge, Spanning South Fork of American River at State Highway 193, Placerville, El Dorado County, CA

  9. Community Colleges. The Boston Junior College Blues

    ERIC Educational Resources Information Center

    Papke, David Ray

    1975-01-01

    Private junior colleges for women in Boston are suffering from severe financial difficulties. The solutions at three schools, Garland Junior College, Pine Manor Junior College, and Mount Ida Junior College, are presented. (Author/PG)

  10. Yangian symmetry in molecule {l_brace}V6{r_brace} and four-spin Heisenberg model

    SciTech Connect

    Peng Xubiao; Bai Chengming; Ge Molin

    2011-02-15

    The symmetry operator Q = Y{sup 2} is introduced to re-describe the Heisenberg spin triangles in the {l_brace}V6{r_brace} molecule, where Y stands for the Yangian operator which can be viewed as special form of Dzyaloshinsky-Moriya (DM) interaction for spin 1/2 systems. Suppose a parallelogram Heisenberg model that is comprised of four 1/2 -spins commutes with Q, which mean that it possesses Yangian symmetry, we show that the ground state of the Hamiltonian H{sub 4} for the model allows to take the total spin S = 1 by choosing some suitable exchange constants in H{sub 4}. In analogy to the molecule {l_brace}V6{r_brace} where the two triangles interact through Yangian operator we then give the magnetization for the theoretical molecule '{l_brace}V8{r_brace}' model which is comprised of two parallelograms. Following the example of molecule {l_brace}V15{r_brace}, we give another theoretical molecule model regarding the four 1/2 -spins system with total spin S = 1 and predict the local moments to be 9/(10) {mu}{sub B},1/(10) {mu}{sub B},1/(10) {mu}{sub B},9/(10) {mu}{sub B}, respectively.

  11. 77 FR 19573 - Safety Zone; Wedding Fireworks Display, Boston Inner Harbor, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-02

    ... the January 17, 2008, issue of the Federal Register (73 FR 3316). Public Meeting We do not now plan to... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Wedding Fireworks Display, Boston Inner... in the vicinity of Anthony's Pier 4, Boston, MA for a wedding fireworks display. This...

  12. 33 CFR 165.120 - Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA. 165.120 Section 165.120 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY REGULATED NAVIGATION AREAS AND LIMITED ACCESS AREAS Specific Regulated...

  13. 33 CFR 165.120 - Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Safety Zone: Chelsea River, Boston Inner Harbor, Boston, MA. 165.120 Section 165.120 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY REGULATED NAVIGATION AREAS AND LIMITED ACCESS AREAS Specific Regulated...

  14. 75 FR 61096 - Regulated Navigation Area; Reserved Channel, Boston Harbor, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-04

    ... establishing a Regulated Navigation Area (RNA) in Boston Harbor, Reserved Channel, the Boston Marine Industrial... entry into the Reserved Channel and control the speed of all vessels transiting within the RNA. The RNA... without establishing an RNA, because this would unnecessarily jeopardize public safety during...

  15. Roughening and Preroughening of Diamond-Cubic {l_brace}111{r_brace} Surfaces

    SciTech Connect

    Woodraska, D.L.; Jaszczak, J.A.

    1997-01-01

    A solid-on-solid model for {l_brace}111{r_brace} surfaces of diamond-cubic materials that correctly takes into account the diamond-cubic crystal structure has been developed for Monte Carlo simulation. In addition to a roughening transition at temperature T{sub R}, a distinct preroughening transition at T{sub PR}{approx}0.43T{sub R} is indicated by divergences in the surface specific heat and order-parameter susceptibility. Preroughening appears to arise naturally in our nearest-neighbor bond model from the entropic freedom available in the nontrivial crystal structure. Preroughening is shown to dramatically lower the nucleation barrier for growth and etching at low driving forces. {copyright} {ital 1997} {ital The American Physical Society}

  16. Biomechanical Analysis of the Effects of Bilateral Hinged Knee Bracing

    PubMed Central

    Lee, Hangil; Ha, Dokyeong; Kang, Yeoun-Seung; Park, Hyung-Soon

    2016-01-01

    This research analyzed the effect of bilateral hinged knee braces on a healthy knee from a biomechanical frame in vivo. This was accomplished by fitting a knee brace with two customized wireless force/torque (F/T) sensors that could readily record force and torque during live motion, while the kinetics at the knee were computed using the inverse dynamics of the motion capture and force plate data. Four tasks to test the brace’s effects were drop vertical jumping, pivoting, stop vertical jumping, and cutting. The results showed that the hinges in the knee brace can absorb up to 18% of the force and 2.7% of the torque at the knee during various athletic motions. Thus, the hinges demonstrated minimal effect in reducing the mechanical load on the knee. There were limitations concerning the consistency of the motions performed by the subjects during the trials and the influence of the other portions of the brace to evaluate the overall effectiveness of the brace as a whole. Future works may incorporate a fatigue protocol and injured subjects to better determine the effects of the brace. There is still a need for more research on the biomechanical influence of knee braces to develop safer and more effective products. PMID:27379233

  17. The Chêneau concept of bracing--biomechanical aspects.

    PubMed

    Rigo, Manuel; Weiss, Hans-Rudolf

    2008-01-01

    Current concept of bracing must take in consideration both the three-dimensional (3D) nature of Adolescent Idiopathic Scoliosis (AIS) and its pathomechanism of progression. A modern brace should be able to correct in 3D in order to break the so called 'vicious cycle' model. Generally speaking, it is necessary to create detorsional forces to derotate in the transversal plane, to correct the lateral deviation in the frontal plane and to normalize the sagittal profile of the spine. Breathing mechanics can be used to fight against the thoracic structural flat back. The original Chêneau brace was introduced at the end of the 70's and its principles were based more in anatomical observations rather than in biomechanics. A further evolution , enunciating new principles, has allowed a higher standard, improving in brace corrections and trunk modelling. This biomechanical principles have been developed under the name of Rigo-Chêneau-System (RSC) and used later in latest brace models like the Chêneau light with reduced material, and similar in brace corrections. Experience is also important to improve the end results. The blueprints to built the brace according to the anatomorradiological pattern are very helpful.

  18. Efficacy of Unloader Bracing in Reducing Symptoms of Knee Osteoarthritis.

    PubMed

    Ostrander, Roger V; Leddon, Charles E; Hackel, Joshua G; O'Grady, Christopher P; Roth, Charles A

    2016-01-01

    Braces designed to unload the more diseased compartment of the knee have been used to provide symptomatic relief from osteoarthritis (OA). Research on the efficacy of these braces is needed. Thirty-one patients with knee OA were randomized to receive an unloader brace (n = 16) or not to receive a brace (control group, n = 15). Knee Injury and Osteoarthritis Outcomes Score (KOOS) and visual analog scale (VAS) scores were used to evaluate outcomes. KOOS results showed that the brace group had significantly less pain (P < .001), fewer arthritis symptoms (P = .007), and better ability to engage in activities of daily living (P = .008). There was no difference in function in sport and recreation (P = .402) or in knee-related quality of life (P = .718). VAS results showed that the brace group had significantly less pain throughout the day (P = .021) and had improved activity levels (P = .035). There was no difference in ability to sleep (P = .117) or in use of nonsteroidal anti-inflammatory drugs (P = .138). Our study results showed that use of an unloader brace for medial compartment knee OA led to significant improvements in pain, arthritis symptoms, and ability to engage in activities.

  19. Osteofibrous dysplasia of the tibia treated by bracing.

    PubMed

    Akamatsu, N; Hamada, Y; Kohno, H; Siddiqi, N A

    1992-01-01

    Osteofibrous dysplasia of the tibia in children will commonly recur after surgical resection. The use of a leg brace until puberty offers a useful method of conservative management. Seven female patients, age three months to nine years at the time of brace treatment, have been followed for 3.5 to 18 years, an average of nine years, with evidence of satisfactory healing of the lesions in all. Three of the cases had recurred after surgery, two with fibular grafts and one required leg lengthening. The use of a brace to control bowing of the tibia while awaiting spontaneous regression is advised until epiphyseal closure. PMID:1428320

  20. A magnetorheological fluid based orthopedic active knee brace

    NASA Astrophysics Data System (ADS)

    Zite, Jamaal L.; Ahmadkhanlou, Farzad; Neelakantan, Vijay A.; Washington, Gregory N.

    2006-03-01

    The disadvantage of current knee braces ranges from high cost for customization to a loss in physical mobility and limited rehabilitative value. One approach to solving this problem is to use a Magnetorheological (MR) device to make the knee brace have a controllable resistance. Our design solution is to replace the manufacturer's joint with an rotary MR fluid based shear damper. The device is designed based on a maximum yield stress, a corresponding magnetic field, a torque and the MR fluid viscosity. The analytical and experimental results show the advantages and the feasibility of using the proposed MR based controllable knee braces.

  1. 13. DETAIL, LATERAL BRACING FOR INTERIOR OVERHEAD CRANE Delaware, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. DETAIL, LATERAL BRACING FOR INTERIOR OVERHEAD CRANE - Delaware, Lackawanna & Western Railroad Freight & Rail Yard, Multiple Unit Light Inspection Shed, New Jersey Transit Hoboken Terminal Rail Yard, Hoboken, Hudson County, NJ

  2. 9. DETAIL VIEW OF SUPPORT COLUMNS AND LATERAL BRACINGS INSIDE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    9. DETAIL VIEW OF SUPPORT COLUMNS AND LATERAL BRACINGS INSIDE CUPOLA - Baltimore & Ohio Railroad, Mount Clare Passenger Car Shop, Southwest corner of Pratt & Poppleton Streets, Baltimore, Independent City, MD

  3. 8. VIEW NORTHEAST AND UP, PORTAL BRACING Route 1 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. VIEW NORTHEAST AND UP, PORTAL BRACING - Route 1 Extension, Structure No. 0703-161, Spanning Conrail-Newark & New York Industrial tracks, Richards Lane, & Hawkins Street at Routes 1 & 9 Southbound, Newark, Essex County, NJ

  4. View northwest, wharf B, timber framing, detail of cross bracing, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View northwest, wharf B, timber framing, detail of cross bracing, charred piers, recent galvanized fastenings - U.S. Coast Guard Sandy Hook Station, Western Docking Structure, West of intersection of Canfield Road & Hartshorne Drive, Highlands, Monmouth County, NJ

  5. View south, wharf B, timber framing, detail of cross bracing, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View south, wharf B, timber framing, detail of cross bracing, recent galvanized straps, bolts and washers - U.S. Coast Guard Sandy Hook Station, Western Docking Structure, West of intersection of Canfield Road & Hartshorne Drive, Highlands, Monmouth County, NJ

  6. 16. CLOSEUP VIEW OF WIND AND SWAY BRACING AND LATTICE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    16. CLOSE-UP VIEW OF WIND AND SWAY BRACING AND LATTICE STRUTS ON 210' 9' LIFT SPAN LOCKING DOWN LENGTH OF SPAN - Central Railroad of New Jersey, Newark Bay Lift Bridge, Spanning Newark Bay, Newark, Essex County, NJ

  7. 11. View from the east of bent #10 with bracing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    11. View from the east of bent #10 with bracing of underside of deck and track of metro north railroad - Bridge No. 00761, Spanning Housatonic River at State Route No. 15, Milford, New Haven County, CT

  8. 7. DETAIL OF LATERAL BRACING OF THROUGH TRUSS SPAN (THIS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. DETAIL OF LATERAL BRACING OF THROUGH TRUSS SPAN (THIS SPAN IS IMMEDIATELY SOUTH OF THE VERTICAL LIFT SPAN). - Shippingsport Bridge, Spanning Illinois River at State Route 51, La Salle, La Salle County, IL

  9. 2. DETAIL VIEW SHOWING BOLTED KNEE BRACES ON AFRAME OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. DETAIL VIEW SHOWING BOLTED KNEE BRACES ON A-FRAME OF WALKING BEAM ENGINE. Photocopy of photograph. Susan Kardas, photographer, November 1984 - Shooters Island, Ships Graveyard, Vessel No. 53, Newark Bay, Staten Island (subdivision), Richmond County, NY

  10. 22. Top Lateral Bracing & Top Chord, Vertical Tension Member ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    22. Top Lateral Bracing & Top Chord, Vertical Tension Member 6, end Vertical Compression Members 5 & 4; South Swing Span; looking N. - Pacific Shortline Bridge, U.S. Route 20,spanning Missouri River, Sioux City, Woodbury County, IA

  11. A magnetorheological fluid-based controllable active knee brace

    NASA Astrophysics Data System (ADS)

    Ahmadkhanlou, Farzad; Zite, Jamaal L.; Washington, Gregory N.

    2007-04-01

    High customization costs and reduction of natural mobility put current rehabilitative knee braces at a disadvantage. A resolution to this problem is to integrate a Magnetorheological (MR) fluid-based joint into the system. A MR joint will allow patients to apply and control a resistive torque to knee flexion and extension. The resistance torque can also be continuously adjusted as a function of extension angle and patient strength (or as a function of time), which is currently impossible with state of the art rehabilitative knee braces. A novel MR fluid-based controllable knee brace is designed and prototyped in this research. The device exhibits large resistive torque in the on-state and low resistance in the offstate. The controllable variable stiffness, compactness, and portability of the system make it a proper alternative to current rehabilitative knee braces.

  12. 11. VIEW OF SOUTH BRIDGE PIER, BOTTOM LATERAL BRACING, LOWER ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    11. VIEW OF SOUTH BRIDGE PIER, BOTTOM LATERAL BRACING, LOWER CHORD, STRINGERS, END POST AND BEARING SEAT; FACING SOUTHEAST. - Walker Bridge, Spanning Klamath River and connecting Highway 96 and Walker Road, Klamath River, Siskiyou County, CA

  13. 20. WEB / DECK / LATERAL BRACING DETAIL OF THROUGH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    20. WEB / DECK / LATERAL BRACING DETAIL OF THROUGH TRUSSES. VIEW TO WEST. - Abraham Lincoln Memorial Bridge, Spanning Missouri River on Highway 30 between Nebraska & Iowa, Blair, Washington County, NE

  14. DETAIL OF FRONT ENTRY. SHOWING KNEE BRACES AND DECORATIVE CUT ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    DETAIL OF FRONT ENTRY. SHOWING KNEE BRACES AND DECORATIVE CUT RAFTERS. PILASTERS, AND LAVA ROCK CHEEK CHEEK WALLS. VIEW FACING NORTH. - Hickam Field, Fort Kamehameha Officers' Housing Type Y, 27 Worchester Avenue, Honolulu, Honolulu County, HI

  15. 7. NORTH EXTERIOR SIDE SHOWING TRIANGULAR KNEE BRACE SUPPORTS AND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. NORTH EXTERIOR SIDE SHOWING TRIANGULAR KNEE BRACE SUPPORTS AND ENCLOSED PORCH SCREENED WINDOWS. VIEW TO SOUTH. - Big Creek Hydroelectric System, Powerhouse 8, Operator Cottage, Big Creek, Big Creek, Fresno County, CA

  16. DETAIL OF FRONT ENTRY. SHOWING THE KNEE BRACES AND DECORATIVE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    DETAIL OF FRONT ENTRY. SHOWING THE KNEE BRACES AND DECORATIVE CUT RAFTER TAILS. VIEW FACING EAST. - Hickam Field, Fort Kamehameha Officers' Housing Type Z, 19 Worchester Avenue, Honolulu, Honolulu County, HI

  17. Space Radar Image of Boston, Massachusetts

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This radar image of the area surrounding Boston, Mass., shows how a spaceborne radar system distinguishes between densely populated urban areas and nearby areas that are relatively unsettled. The bright white area at the right center of the image is downtown Boston. The wide river below and to the left of the city is the Charles River in Boston's Back Bay neighborhood. The dark green patch to the right of the Back Bay is Boston Common. A bridge across the north end of Back Bay connects the cities of Boston and Cambridge. The light green areas that dominate most of the image are the suburban communities surrounding Boston. The many ponds that dot the region appear as dark irregular spots. Many densely populated urban areas show up as red in the image due to the alignment of streets and buildings to the incoming radar beam. North is toward the upper left. The image was acquired on October 9, 1994, by the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) as it flew aboard the space shuttle Endeavour. This area is centered at 42.4 degrees north latitude, 71.2 degrees west longitude. The area shown is approximately 37 km by 18 km (23 miles by 11 miles). Colors are assigned to different radar frequencies and polarizations as follows: red is L-band horizontally transmitted, horizontally received; green is L-band horizontally transmitted, vertically received; blue is C-band horizontally transmitted, vertically received. SIR-C/X-SAR, a cooperative mission of the German, Italian and United States space agencies, is part of NASA's Mission to Planet Earth program.

  18. 20. VIEW, LOOKING NORTH FROM BOSTON, SHOWING RAILING, PEDESTRIAN STAIR, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    20. VIEW, LOOKING NORTH FROM BOSTON, SHOWING RAILING, PEDESTRIAN STAIR, AND '10 SMOOT' MARKER (see data pages) - Harvard Bridge, Spanning Charles River at Massachusetts Avenue, Boston, Suffolk County, MA

  19. Prolene monofilament suture in Boston Keratoprosthesis surgery

    PubMed Central

    Kyrillos,, Ralph; Harissi-Dagher, Mona

    2011-01-01

    Summary Toxic reaction to nylon following uncomplicated cataract surgery and vitrectomy has been documented in the literature. We report the case of an aniridic patient with a known adverse reaction to nylon in whom Prolene suture was used in Boston Keratoprosthesis type 1 (KPro) surgery. During follow-up the cornea was checked for signs of inflammation and toxic reaction; at last follow-up (18 months) the patient showed no signs of complications due to Prolene. Our study suggests that Prolene suture may be used as an alternative to nylon in Boston KPro surgery in patients with a history of nylon toxicity. PMID:23362386

  20. Evaluating the displacement amplification factors of concentrically braced steel frames

    NASA Astrophysics Data System (ADS)

    Mahmoudi, Mussa; Zaree, Mahdi

    2013-12-01

    According to seismic design codes, nonlinear performance of structures is considered during strong earthquakes. Seismic design provisions estimate the maximum roof and story drifts occurring during major earthquakes by amplifying the drifts computed from elastic analysis at the prescribed seismic force level with a displacement amplification factor. The present study tries to evaluate the displacement amplification factors of conventional concentric braced frames (CBFs) and buckling restrained braced frames (BRBFs). As such, static nonlinear (pushover) analysis and nonlinear dynamic time history analysis have been performed on the model buildings with single and double bracing bays, and different stories and brace configurations (chevron V, invert V, and X bracing). It is observed that the displacement amplification factors for BRBFs are higher than that of CBFs. Also, the number of bracing bays and height of buildings have a profound effect on the displacement amplification factors. The evaluated ratios between displacement amplification factors and response modification factors are from 1 to 1.12 for CBFs and from 1 to 1.4 for BRBFs.

  1. 78 FR 59313 - Safety Zones; Captain of the Port Boston Fireworks Display Zones, Boston Harbor, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-26

    ... Department of Homeland Security FR Federal Register NPRM Notice of Proposed Rulemaking A. Public... Federal Register (73 FR 3316). 4. Public Meeting We do not now plan to hold a public meeting. But you may.... SUMMARY: The Coast Guard is proposing to establish six permanent safety zones throughout Boston...

  2. The development of {l_brace}100{r_brace} texture in Fe 3% Si electrical sheets

    SciTech Connect

    Talowski, C.; Waeckerle, T.

    1996-09-01

    Today, a way to strongly raise the operating flux density in rotating machines is to use {l_brace}100{r_brace}<001> cubic textured sheets. The hot rolling texture gradient strongly influences the development of the preferential final texture. This paper presents a process based on a specific heterogeneously strained hot deformation and a subsequent annealing which leads to a final misoriented cubic texture after a normal grain growth.

  3. 78 FR 42101 - Boston Area Maritime Security Advisory Committee; Vacancies

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-15

    ... SECURITY Coast Guard Boston Area Maritime Security Advisory Committee; Vacancies AGENCY: Coast Guard, DHS... the Boston Area Maritime Security Committee to submit their applications for membership, to the... INFORMATION CONTACT: For questions about submitting an application or about the Boston Area Maritime...

  4. 78 FR 52783 - Boston Harbor Islands Advisory Council Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-26

    ... National Park Service Boston Harbor Islands Advisory Council Meeting AGENCY: National Park Service... Islands Advisory Council. The agenda includes discussion of 2016 celebration planning for the 300th Anniversary of Boston Light, 20th Anniversary of Boston Harbor Islands National Recreation Area (NRA),...

  5. 78 FR 28619 - Boston Harbor Islands Advisory Council Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-15

    ...: Bruce Jacobson, DFO, Boston Harbor Islands National Recreation Area, 15 State Street, Suite 1100, Boston, MA 02109; telephone (617) 223-8669; email Bruce_Jacobson@nps.gov . SUPPLEMENTARY INFORMATION: This... Official (DFO) for the Boston Harbor Islands Advisory Council, Bruce Jacobson, by mail at State...

  6. 78 FR 9730 - Boston Harbor Islands Advisory Council Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-11

    ... Jacobson, DFO, Boston Harbor Islands National Recreation Area, 408 Atlantic Avenue, Suite 228, Boston, MA 02110; telephone (617) 223-8669; email Bruce_Jacobson@nps.gov . SUPPLEMENTARY INFORMATION: This meeting... Official for the Boston Harbor Islands Advisory Council, Bruce Jacobson, by mail at 408 Atlantic...

  7. The effects of functional knee braces on speed in collegiate basketball players.

    PubMed

    Stephens, D L

    1995-12-01

    Knee braces are worn by many athletes following injury. The purpose of this study was to determine whether two functional knee braces (noncustom design) significantly affected straight line and successive turning trial running times in noninjured collegiate basketball players. Twenty-five coed basketball players completed 2 days of running trials. Subjects ran three full lengths of a basketball court and 10 lengths between the baseline and the foul line first without wearing a brace, then wearing either a DonJoy GoldPoint brace or an Omni OS-5 brace, and finally wearing the other brace. The results indicated no significant difference (p < .05) in straight line or successive turning running times when the two braces were compared with the nonbraced condition and when the two braces were compared with each other. The results implied that speed was not significantly affected by a functional knee brace in noninjured collegiate basketball players. PMID:8580953

  8. The effects of functional knee braces on speed in collegiate basketball players.

    PubMed

    Stephens, D L

    1995-12-01

    Knee braces are worn by many athletes following injury. The purpose of this study was to determine whether two functional knee braces (noncustom design) significantly affected straight line and successive turning trial running times in noninjured collegiate basketball players. Twenty-five coed basketball players completed 2 days of running trials. Subjects ran three full lengths of a basketball court and 10 lengths between the baseline and the foul line first without wearing a brace, then wearing either a DonJoy GoldPoint brace or an Omni OS-5 brace, and finally wearing the other brace. The results indicated no significant difference (p < .05) in straight line or successive turning running times when the two braces were compared with the nonbraced condition and when the two braces were compared with each other. The results implied that speed was not significantly affected by a functional knee brace in noninjured collegiate basketball players.

  9. The Other Boston Tea Party. Teacher's Guide.

    ERIC Educational Resources Information Center

    Rosal, Lorenca Consuelo; And Others

    A teachers' guide is presented that accompanies the video production of "The Other Boston Tea Party," a play used to teach about the U.S. Constitution and American legal and political systems. The play combines a comedy of manners with an historical approach to the issues surrounding the Federalist/Anti-Federalist debate over ratification of the…

  10. Boston and the Charter School Cap

    ERIC Educational Resources Information Center

    Peyser, James A.

    2014-01-01

    Would it sound too good to be true if you could imagine a city with a set of open enrollment public schools, serving predominately low-income children of color, where students learn at twice the rate of their peers in neighboring schools, and those schools were ready, willing, and able to enroll more students? That is the case in Boston where,…

  11. 77 FR 59551 - Safety Zone, Changes to Original Rule; Boston Harbor's Rock Removal Project, Boston Inner Harbor...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-28

    ... Department of Homeland Security FR Federal Register NPRM Notice of Proposed Rulemaking COTP Captain of the... Zone; Boston Harbor's Rock Removal Project, Boston Inner Harbor, Boston, MA'' (77 FR 50916). This new... Captain of the Port (COTP) Zone for the drilling, blasting, and dredging operation on the navigable...

  12. 78 FR 34577 - Safety Zone; Ad Club's 100th Anniversary Gala Fireworks Display, Boston Inner Harbor, Boston, MA.

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-10

    ... Security FR Federal Register NPRM Notice of Proposed Rulemaking COTP Captain of the Port A. Regulatory... (COTP) Zone for a fireworks display on the navigable waters of Boston Harbor in the vicinity of the Fan...-feet off of the Fan Pier, Boston Inner Harbor, Boston, MA (2) Definitions. For purposes of this...

  13. Boston: An Urban Community. Images of Boston: Writers' Views of the City. Painting in Boston, 1670-1970. Law, Justice, and Equality: Case Studies from the Boston Experience. Shaping the Boston Landscape: Drumlins and Puddingstone. The Way We Really Live: Social Change in Metropolitan Boston, Since 1920. Annotated Reading Lists.

    ERIC Educational Resources Information Center

    Hollister, Robert M.; And Others

    These five annotated reading guides conclude the series developed for courses at the Boston Public Library under the National Endowment for the Humanities Learning Library Program. Images of Boston offers 44 novels and other popular literature to show (1) how Boston is represented in creative writing, (2) how authors depict its physical experience…

  14. Novel Control Effectors for Truss Braced Wing

    NASA Technical Reports Server (NTRS)

    White, Edward V.; Kapania, Rakesh K.; Joshi, Shiv

    2015-01-01

    At cruise flight conditions very high aspect ratio/low sweep truss braced wings (TBW) may be subject to design requirements that distinguish them from more highly swept cantilevered wings. High aspect ratio, short chord length and relative thinness of the airfoil sections all contribute to relatively low wing torsional stiffness. This may lead to aeroelastic issues such as aileron reversal and low flutter margins. In order to counteract these issues, high aspect ratio/low sweep wings may need to carry additional high speed control effectors to operate when outboard ailerons are in reversal and/or must carry additional structural weight to enhance torsional stiffness. The novel control effector evaluated in this study is a variable sweep raked wing tip with an aileron control surface. Forward sweep of the tip allows the aileron to align closely with the torsional axis of the wing and operate in a conventional fashion. Aft sweep of the tip creates a large moment arm from the aileron to the wing torsional axis greatly enhancing aileron reversal. The novelty comes from using this enhanced and controllable aileron reversal effect to provide roll control authority by acting as a servo tab and providing roll control through intentional twist of the wing. In this case the reduced torsional stiffness of the wing becomes an advantage to be exploited. The study results show that the novel control effector concept does provide roll control as described, but only for a restricted class of TBW aircraft configurations. For the configuration studied (long range, dual aisle, Mach 0.85 cruise) the novel control effector provides significant benefits including up to 12% reduction in fuel burn.

  15. Analysis of Brace Stiffness Influence on Stability of the Truss

    NASA Astrophysics Data System (ADS)

    Krajewski, M.; Iwicki, P.

    2015-02-01

    The paper is devoted to the numerical and experimental research of stability of a truss with side elastic supports at the top chord. The structure is a model of a real roof truss scaled by factor 1/4. The linear buckling analysis and non-linear static analysis were carried out. The buckling length factor for the compressed top chord was calculated and the limit load for the imperfect truss shell model with respect to brace stiffness was obtained. The relation between brace normal force and loading of the truss is presented. The threshold stiffness of braces necessary to obtain the maximum buckling load was found. The truss load bearing capacity obtained from numerical analysis was compared with Eurocode 3 requirements.

  16. Biomechanical Comparison of 3 Ankle Braces With and Without Free Rotation in the Sagittal Plane

    PubMed Central

    Alfuth, Martin; Klein, Dieter; Koch, Raphael; Rosenbaum, Dieter

    2014-01-01

    Context: Various designs of braces including hinged and nonhinged models are used to provide external support of the ankle. Hinged ankle braces supposedly allow almost free dorsiflexion and plantar flexion of the foot in the sagittal plane. It is unclear, however, whether this additional degree of freedom affects the stabilizing effect of the brace in the other planes of motion. Objective: To investigate the dynamic and passive stabilizing effects of 3 ankle braces, 2 hinged models that provide free plantar flexion–dorsiflexion in the sagittal plane and 1 ankle brace without a hinge. Design: Crossover study. Setting: University Movement Analysis Laboratory. Patients or Other Participants: Seventeen healthy volunteers (5 women, 12 men; age = 25.4 ± 4.8 years; height = 180.3 ± 6.5 cm; body mass = 75.5 ± 10.4 kg). Intervention(s): We dynamically induced foot inversion on a tilting platform and passively induced foot movements in 6 directions via a custom-built apparatus in 3 brace conditions and a control condition (no brace). Main Outcome Measure(s): Maximum inversion was determined dynamically using an in-shoe electrogoniometer. Passively induced maximal joint angles were measured using a torque and angle sensor. We analyzed differences among the 4 ankle-brace conditions (3 braces, 1 control) for each of the dependent variables with Friedman and post hoc tests (P < .05). Results: Each ankle brace restricted dynamic foot-inversion movements on the tilting platform as compared with the control condition, whereas only the 2 hinged ankle braces differed from each other, with greater movement restriction caused by the Ankle X model. Passive foot inversion was reduced with all ankle braces. Passive plantar flexion was greater in the hinged models as compared with the nonhinged brace. Conclusions: All ankle braces showed stabilizing effects against dynamic and passive foot inversion. Differences between the hinged braces and the nonhinged brace did not appear to be

  17. "Custom-fit" versus "off-the-shelf" ACL functional braces.

    PubMed

    Wojtys, E M; Huston, L J

    2001-01-01

    Many sports medicine practitioners believe "custom-fit" functional braces are superior in performance to "off-the-shelf" braces for anterior cruciate ligament (ACL)-deficient knees. However, this is not well substantiated. This study compares a Donjoy custom-fit ACL brace (CE 2000), Donjoy off-the-shelf brace (Goldpoint), and an athletic taping technique to determine their role in our clinical practice. Five patients (3 men and 2 women) with isolated, unilateral, chronic ACL tears with an average age of 27 years (range: 19-35 years) were used to evaluate these three restraint systems. Anterior tibial laxity, quadriceps and hamstrings strength, endurance, standing long jump, brace migration with exercise, and pattern of muscle response to forced anterior tibial displacement were studied. Each patient was tested without a brace and then in each of the three test conditions (custom brace, off-the-shelf brace, and tape), with the order of testing randomized. The Donjoy custom-fit ACL functional brace did not reduce anterior laxity or improve standing long jump, muscle strength, endurance, or muscle response times significantly more than the off-the-shelf ACL brace. Both braces improved anterior stability over knee taping when the knee muscles were contracted under the low forces used in this study. After 1 hour of exercise, brace migration was significantly greater (P=.03) for the CE-2000 custom brace (18.6 mm) than for the Goldpoint off-the-shelf brace (4.5 mm). There appears to be no advantage to the more expensive custom-fit knee brace over the off-the-shelf brace.

  18. "Will My Child Benefit from Using Braces?": Insights on a Challenging Issue

    ERIC Educational Resources Information Center

    Buethorn, Don

    2008-01-01

    When a child first receives a diagnosis and a treatment plan that includes recommendations for bracing, the prospect of intensive orthotic intervention can be daunting for the parent. Braces traditionally represent a prominent visual cue that the child has trouble walking. The classic brace seems awkward and hard to get into and out of. It is…

  19. 48 CFR 52.247-58 - Loading, Blocking, and Bracing of Freight Car Shipments.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Bracing of Freight Car Shipments. 52.247-58 Section 52.247-58 Federal Acquisition Regulations System... Text of Provisions and Clauses 52.247-58 Loading, Blocking, and Bracing of Freight Car Shipments. As... be shipped in carload lots by rail: Loading, Blocking, and Bracing of Freight Car Shipments (APR...

  20. 48 CFR 52.247-58 - Loading, Blocking, and Bracing of Freight Car Shipments.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Bracing of Freight Car Shipments. 52.247-58 Section 52.247-58 Federal Acquisition Regulations System... Text of Provisions and Clauses 52.247-58 Loading, Blocking, and Bracing of Freight Car Shipments. As... be shipped in carload lots by rail: Loading, Blocking, and Bracing of Freight Car Shipments (APR...

  1. 48 CFR 52.247-58 - Loading, Blocking, and Bracing of Freight Car Shipments.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Bracing of Freight Car Shipments. 52.247-58 Section 52.247-58 Federal Acquisition Regulations System... Text of Provisions and Clauses 52.247-58 Loading, Blocking, and Bracing of Freight Car Shipments. As... be shipped in carload lots by rail: Loading, Blocking, and Bracing of Freight Car Shipments (APR...

  2. The effect of bracing on the collateral ligaments of the knee.

    PubMed

    Baker, B E

    1990-10-01

    Disruption of the ligamentous structures of the knee is commonly seen in competitive sports. The role of prophylactic and functional bracing is controversial. Currently, prophylactic bracing has not been shown, conclusively, to be protective. Functional braces appear to have a capacity to provide some protective effect. PMID:2265441

  3. 48 CFR 52.247-58 - Loading, Blocking, and Bracing of Freight Car Shipments.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Bracing of Freight Car Shipments. 52.247-58 Section 52.247-58 Federal Acquisition Regulations System... Text of Provisions and Clauses 52.247-58 Loading, Blocking, and Bracing of Freight Car Shipments. As... be shipped in carload lots by rail: Loading, Blocking, and Bracing of Freight Car Shipments (APR...

  4. 48 CFR 52.247-58 - Loading, Blocking, and Bracing of Freight Car Shipments.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Bracing of Freight Car Shipments. 52.247-58 Section 52.247-58 Federal Acquisition Regulations System... Text of Provisions and Clauses 52.247-58 Loading, Blocking, and Bracing of Freight Car Shipments. As... be shipped in carload lots by rail: Loading, Blocking, and Bracing of Freight Car Shipments (APR...

  5. Brace technology thematic series - The Sforzesco and Sibilla braces, and the SPoRT (Symmetric, Patient oriented, Rigid, Three-dimensional, active) concept

    PubMed Central

    2011-01-01

    Background Bracing is an effective strategy for scoliosis treatment, but there is no consensus on the best type of brace, nor on the way in which it should act on the spine to achieve good correction. The aim of this paper is to present the family of SPoRT (Symmetric, Patient-oriented, Rigid, Three-dimensional, active) braces: Sforzesco (the first introduced), Sibilla and Lapadula. Methods The Sforzesco brace was developed following specific principles of correction. Due to its overall symmetry, the brace provides space over pathological depressions and pushes over elevations. Correction is reached through construction of the envelope, pushes, escapes, stops, and drivers. The real novelty is the drivers, introduced for the first time with the Sforzesco brace; they allow to achieve the main action of the brace: a three-dimensional elongation pushing the spine in a down-up direction. Brace prescription is made plane by plane: frontal (on the "slopes", another novelty of this concept, i.e. the laterally flexed sections of the spine), horizontal, and sagittal. The brace is built modelling the trunk shape obtained either by a plaster cast mould or by CAD-CAM construction. Brace checking is essential, since SPoRT braces are adjustable and customisable according to each individual curve pattern. Treatment time and duration is individually tailored (18-23 hours per day until Risser 3, then gradual reduction). SEAS (Scientific Exercises Approach to Scoliosis) exercises are a key factor to achieve success. Results The Sforzesco brace has shown to be more effective than the Lyon brace (matched case/control), equally effective as the Risser plaster cast (prospective cohort with retrospective controls), more effective than the Risser cast + Lyon brace in treating curves over 45 degrees Cobb (prospective cohort), and is able to improve aesthetic appearance (prospective cohort). Conclusions The SPoRT concept of bracing (three-dimensional elongation pushing in a down-up direction

  6. 75 FR 6699 - Boston Harbor Islands National Recreation Area Advisory Council; Notice of Public Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-10

    ... Bruce Jacobson at Boston Harbor Islands, 408 Atlantic Avenue, Suite 228, Boston, MA 02110 or (617) 223..., Boston, MA. FOR FURTHER INFORMATION CONTACT: Superintendent Bruce Jacobson, (617) 223-8667. SUPPLEMENTARY... Boston Harbor Islands NRA. Dated: January 15, 2010. Bruce Jacobson, Superintendent, Boston Harbor...

  7. 17. Photocopy of drawing, Erection Plan of Top Lateral Bracing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    17. Photocopy of drawing, Erection Plan of Top Lateral Bracing of Bridge at South Norwalk for the N.Y., N.H. and H.R.R., dated June 12, 1895. Original on file with Metro North Commuter Railroad. - South Norwalk Railroad Bridge, South Main & Washington Streets, Norwalk, Fairfield County, CT

  8. DETAIL VIEW OF THE BRACED IBEAM COLUMNS AT THE END ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    DETAIL VIEW OF THE BRACED I-BEAM COLUMNS AT THE END OF THE CENTER FLAT TRUSS OF THE ROOF. NOTE THE ORIGINAL LIGHT FIXTURE WITH BENT CONDUIT TUBING. VIEW FACING SOUTHEAST. - U.S. Naval Base, Pearl Harbor, Seaplane Hangar, Lexington Boulevard, south of Enterprise Street, Pearl City, Honolulu County, HI

  9. 14. VIEW OF BRACING AND LOWER CHORD, SPAN NO. 23, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. VIEW OF BRACING AND LOWER CHORD, SPAN NO. 23, SHOWING EFFECT OF COMPRESSIVE FORCE ON TENSILE MEMBERS. (EYEBARS IN UPPER LEFT-HAND CORNER OF VIEW.) - Smith Avenue High Bridge, Smith Avenue between Cherokee Avenue & Cliff Street, Saint Paul, Ramsey County, MN

  10. View, from south showing verticals, diagonals, and overhead bracing of ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View, from south showing verticals, diagonals, and overhead bracing of south span Pratt through trusses, south portal of north span, pipe rails and posts, and concrete deck with bituminous wearing surface - Castle Garden Bridge, Township Route 343 over Bennetts Branch of Sinnemahoning Creek, Driftwood, Cameron County, PA

  11. Bracing Regular Polygons as We Race into the Future

    ERIC Educational Resources Information Center

    Frederickson, Greg N.

    2012-01-01

    How many rods does it take to brace a square in the plane? Once Martin Gardner's network of readers got their hands on it, it turned out to be fewer than Raphael Robinson, who originally posed the problem, thought. And who could have predicted the stunning solutions found subsequently for various generalizations of the problem?

  12. 6. SOUTH EXTERIOR SIDE SHOWING TRIANGULAR KNEE BRACE SUPPORTS AND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. SOUTH EXTERIOR SIDE SHOWING TRIANGULAR KNEE BRACE SUPPORTS AND ENCLOSED PORCH SCREENED WINDOWS. ON BASIC FLOOR-PLAN FOR THE SIX-ROOM HOUSE THIS END WAS THE FRONT ENTRANCE. VIEW TO NORTH. - Big Creek Hydroelectric System, Powerhouse 8, Operator Cottage, Big Creek, Big Creek, Fresno County, CA

  13. 78 FR 48085 - Safety Zones; Chelsea River, Boston Inner Harbor, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-07

    ... Significantly Affect Energy Supply, Distribution, or Use. 13. Technical Standards This proposed rule does not... Portal: http://www.regulations.gov . (2) Fax: 202-493-2251. (3) Mail: Docket Management Facility (M-30..., Coast Guard Sector Boston Waterways Management Division, telephone 617-223-4000, email...

  14. 33 CFR 165.111 - Safety Zone: Boston Harbor, Boston, Massachusetts.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... vessels when Constitution is under way—300 yards in all directions in the waters around the U.S.S... Yard—the waters between Hoosac Pier and Pier 1, Charlestown Navy Yard, from the imaginary line... westernmost point protruding into Boston Harbor from Pier 1, Charlestown Navy Yard, extending inbound...

  15. 33 CFR 165.111 - Safety Zone: Boston Harbor, Boston, Massachusetts.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... vessels when Constitution is under way—300 yards in all directions in the waters around the U.S.S... Yard—the waters between Hoosac Pier and Pier 1, Charlestown Navy Yard, from the imaginary line... westernmost point protruding into Boston Harbor from Pier 1, Charlestown Navy Yard, extending inbound...

  16. 76 FR 53941 - Boston Harbor Islands National Recreation Area Advisory Council; Notice of Public Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-30

    ... Bruce Jacobson at Boston Harbor Islands, 408 Atlantic Avenue, Suite 228, Boston, MA 02110, or (617) 223..., Boston, MA. FOR FURTHER INFORMATION CONTACT: Superintendent Bruce Jacobson, (617) 223-8667....

  17. Boston Architectural College Urban Sustainability Initiative

    SciTech Connect

    Byers, Arthur C.

    2013-07-31

    The Boston Architectural College's Urban Sustainability initiative is a demonstration project as defined by the National Energy Technology Laboratory. BAC's proposed project with the U.S. Department of Energy - NETL, is a large part of that overall initiative. The BAC's Urban Sustainability Initiative is a multi-part project with several important goals and objectives that will have a significant impact on the surrounding neighborhood including: energy conservation, reduction of storm water runoff, generation of power through alternative energy sources, elimination/reduction of BAC carbon footprint, and to create a vehicle for ongoing public outreach and education. Education and outreach opportunities will serve to add to the already comprehensive Sustainability Design courses offered at BAC relative to energy savings, performance and conservation in building design. At the finish of these essential capital projects there will be technical materials created for the education of the design, sustainability, engineering, community development and historic preservation communities, to inform a new generation of environmentally-minded designers and practitioners, the city of Boston and the general public. The purpose of the initiative, through our green renovations program, is to develop our green alley projects and energy saving renovations to the BAC physical plant, to serve as a working model for energy efficient design in enclosed 19th century and 20th century urban sites and as an educational laboratory for teaching ecological and sustainable technologies to students and the public while creating jobs. The scope of our project as it relates to the BAC and the U.S. Department of Energy- NETL combined efforts includes: Task I of the project is Phase II (Green Alley). Task I encompasses various renovation activities that will demonstrate the effectiveness of permeable paving and ground water recharge systems. It will aid in the reduction of storm water runoff into the

  18. The Boston University Twin Project (BUTP).

    PubMed

    Saudino, Kimberly J; Asherson, Philip

    2013-02-01

    The Boston University Twin Project (BUTP) is a multi-method, multi-situation, longitudinal study of early child temperament and related behaviors. The first phase of this project focused primarily on activity level and comprised over 300 twin pairs assessed in the home and lab at ages 2 and 3. Subject recruitment, sample characteristics, and study procedures are described. A second phase broadens our focus to the development of multiple temperament dimensions and developmental outcomes in a new cohort of 300 twin pairs to be assessed at 3, 4, and 5 years of age. Recruitment is currently underway.

  19. 33 CFR 110.30 - Boston Harbor, Mass.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Boston Housing Authority in South Boston; easterly of a line bearing 5° from the west shaft of the tunnel... northwestward of the Dorchester Yacht Club; southward of a line bearing 294° from the southerly channel pier of.... Southwesterly of a line bearing 117° from channel light “4”; southeasterly of a line 150 feet from and...

  20. 33 CFR 110.30 - Boston Harbor, Mass.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Boston Housing Authority in South Boston; easterly of a line bearing 5° from the west shaft of the tunnel... northwestward of the Dorchester Yacht Club; southward of a line bearing 294° from the southerly channel pier of.... Southwesterly of a line bearing 117° from channel light “4”; southeasterly of a line 150 feet from and...

  1. 33 CFR 110.30 - Boston Harbor, Mass.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Boston Housing Authority in South Boston; easterly of a line bearing 5° from the west shaft of the tunnel... northwestward of the Dorchester Yacht Club; southward of a line bearing 294° from the southerly channel pier of.... Southwesterly of a line bearing 117° from channel light “4”; southeasterly of a line 150 feet from and...

  2. 33 CFR 110.30 - Boston Harbor, Mass.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Boston Housing Authority in South Boston; easterly of a line bearing 5° from the west shaft of the tunnel... northwestward of the Dorchester Yacht Club; southward of a line bearing 294° from the southerly channel pier of.... Southwesterly of a line bearing 117° from channel light “4”; southeasterly of a line 150 feet from and...

  3. 33 CFR 110.30 - Boston Harbor, Mass.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Boston Housing Authority in South Boston; easterly of a line bearing 5° from the west shaft of the tunnel... northwestward of the Dorchester Yacht Club; southward of a line bearing 294° from the southerly channel pier of.... Southwesterly of a line bearing 117° from channel light “4”; southeasterly of a line 150 feet from and...

  4. 27. VIEW TO NORTHEAST FROM BOSTON HARBOR, DEER ISLAND PUMPING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    27. VIEW TO NORTHEAST FROM BOSTON HARBOR, DEER ISLAND PUMPING STATION, CA. 1895 Photocopy of photograph (Massachusetts State Archives, Environmental Affairs, MDC, Construction, 313 V 193 1-5 Box 8, Deer Island Pumping Station) - Deer Island Pumping Station, Boston, Suffolk County, MA

  5. 33 CFR 110.138 - Boston Harbor, Mass.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Island Anchorage. Beginning at a point bearing 93°, 1,400 yards, from the aerial beacon on top of the Boston Custom House tower; thence to a point bearing 81°, 1,600 yards, from the aerial beacon on top of the Boston Custom House tower; thence to a point bearing 102°, 3,100 yards, from the aerial beacon...

  6. 33 CFR 110.138 - Boston Harbor, Mass.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Island Anchorage. Beginning at a point bearing 93°, 1,400 yards, from the aerial beacon on top of the Boston Custom House tower; thence to a point bearing 81°, 1,600 yards, from the aerial beacon on top of the Boston Custom House tower; thence to a point bearing 102°, 3,100 yards, from the aerial beacon...

  7. 33 CFR 110.138 - Boston Harbor, Mass.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Island Anchorage. Beginning at a point bearing 93°, 1,400 yards, from the aerial beacon on top of the Boston Custom House tower; thence to a point bearing 81°, 1,600 yards, from the aerial beacon on top of the Boston Custom House tower; thence to a point bearing 102°, 3,100 yards, from the aerial beacon...

  8. 33 CFR 110.138 - Boston Harbor, Mass.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Island Anchorage. Beginning at a point bearing 93°, 1,400 yards, from the aerial beacon on top of the Boston Custom House tower; thence to a point bearing 81°, 1,600 yards, from the aerial beacon on top of the Boston Custom House tower; thence to a point bearing 102°, 3,100 yards, from the aerial beacon...

  9. 33 CFR 110.138 - Boston Harbor, Mass.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Island Anchorage. Beginning at a point bearing 93°, 1,400 yards, from the aerial beacon on top of the Boston Custom House tower; thence to a point bearing 81°, 1,600 yards, from the aerial beacon on top of the Boston Custom House tower; thence to a point bearing 102°, 3,100 yards, from the aerial beacon...

  10. Reflections on Jonathan Boston's Paper

    ERIC Educational Resources Information Center

    Devine, Nesta

    2014-01-01

    In this article, Nesta Devine responds to Jonathan Boston's article "Child Poverty in New Zealand: Why It Matters and How It Can Be Reduced" ("Educational Philosophy and Theory," v46 n9 p995-999, 2014). Devine wishes to consider Boston's position from two angles: one is to rehearse the point that these statistics are…

  11. 33 CFR 110.29 - Boston Inner Harbor, Mass.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 1 2014-07-01 2014-07-01 false Boston Inner Harbor, Mass. 110.29 Section 110.29 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY ANCHORAGES ANCHORAGE REGULATIONS Special Anchorage Areas § 110.29 Boston Inner Harbor, Mass. (a) Vicinity of...

  12. 33 CFR 110.29 - Boston Inner Harbor, Mass.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 1 2013-07-01 2013-07-01 false Boston Inner Harbor, Mass. 110.29 Section 110.29 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY ANCHORAGES ANCHORAGE REGULATIONS Special Anchorage Areas § 110.29 Boston Inner Harbor, Mass. (a) Vicinity of...

  13. 33 CFR 110.29 - Boston Inner Harbor, Mass.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 1 2012-07-01 2012-07-01 false Boston Inner Harbor, Mass. 110.29 Section 110.29 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY ANCHORAGES ANCHORAGE REGULATIONS Special Anchorage Areas § 110.29 Boston Inner Harbor, Mass. (a) Vicinity of...

  14. Winsor, Dewey, and Putnam: The Boston Experience. Occasional Papers.

    ERIC Educational Resources Information Center

    Davis, Donald G., Jr.; Carpenter, Kenneth E.; Wiegand, Wayne A.; Aikin, Jane

    This volume contains three papers about early library leaders with Boston (Massachusetts) connections. Donald G. Davis, Jr. provides an introduction to the papers. "Justin Winsor, Librarian and Scholar" (Kenneth E. Carpenter) discusses the life of Justin Winsor, who was director of the Boston Public Library (1868-76), president of the American…

  15. Thinking through Art at the Boston Museum of Fine Arts

    ERIC Educational Resources Information Center

    Longhenry, Susan

    2005-01-01

    Can going to an art museum make elementary school students better learners? It can if they are participating in Thinking Through Art, an innovative partnership uniting the Museum of Fine Arts, Boston (MFA), Boston Public Schools (BPS), and Visual Understanding in Education (VUE), a nonprofit educational research group committed to improving…

  16. "No Good Deed . . .": Looking Back at Boston University's Chelsea Experiment

    ERIC Educational Resources Information Center

    Sears, Douglas

    2001-01-01

    The most important date in the Boston University Chelsea Partnership was not the day in 1989 when the initial partnership agreement was signed. Nor was it the date in 1997 when the School Committee voted unanimously to renew the partnership for five additional years. If an objective history of the Boston University-Chelsea Partnership were…

  17. 77 FR 39249 - Boston Area Maritime Security Advisory Committee; Vacancies

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-02

    ... SECURITY Coast Guard Boston Area Maritime Security Advisory Committee; Vacancies AGENCY: Coast Guard, DHS... the Boston Area Maritime Security Committee (AMSC) to submit their applications for membership, to the...-223-3008. SUPPLEMENTARY INFORMATION: Authority Section 102 of the Maritime Transportation Security...

  18. 33 CFR 110.29 - Boston Inner Harbor, Mass.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Boston Inner Harbor, Mass. 110.29 Section 110.29 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY ANCHORAGES ANCHORAGE REGULATIONS Special Anchorage Areas § 110.29 Boston Inner Harbor, Mass. (a) Vicinity of...

  19. 33 CFR 110.29 - Boston Inner Harbor, Mass.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 1 2011-07-01 2011-07-01 false Boston Inner Harbor, Mass. 110.29 Section 110.29 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY ANCHORAGES ANCHORAGE REGULATIONS Special Anchorage Areas § 110.29 Boston Inner Harbor, Mass. (a) Vicinity of...

  20. The aerodynamic properties of thick aerofoils suitable for internal bracing

    NASA Technical Reports Server (NTRS)

    Norton, F H

    1920-01-01

    The object of this investigation was to determine the characteristics of various types of wings having sufficient depth to entirely inclose the wing bracing, and also to provide data for the further design of such sections. This type of wing is of interest because it eliminates the resistance of the interplane bracing, a portion of the airplane that sometimes absorbs one-quarter of the total power required to fly, and because these wings may be made to give a very high maximum lift. Results of the investigation of the following subjects are given: (1) effect of changing the upper and lower camber of thick aerofoils of uniform section; (2) effect of thickening the center and thinning the tips of a thin aerofoil; (3) effect of adding a convex lower surface to a tapered section; (4) effect of changing the mean thickness with constant center and tip sections; and (5) effect of varying the chord along the span.

  1. Nonoperative treatment of unicompartmental arthritis: from bracing to injection.

    PubMed

    Bert, Jack M; Bert, Timothy M

    2014-01-01

    The published recommendations for the nonoperative treatment of osteoarthritis (OA) of the knee include weight loss, physical therapy to strengthen lower-extremity musculature, nonsteroidal antiinflammatories, nutritional supplements, topical treatments, and steroid injections. Evidenced-based results have been mixed using these treatment modalities. The results using unloader braces and viscosupplementation have also been variable. This article reviews the use of conservative treatment of OA of the knee. PMID:24274841

  2. Nonoperative treatment of unicompartmental arthritis: from bracing to injection.

    PubMed

    Bert, Jack M; Bert, Timothy M

    2014-01-01

    The published recommendations for the nonoperative treatment of osteoarthritis (OA) of the knee include weight loss, physical therapy to strengthen lower-extremity musculature, nonsteroidal antiinflammatories, nutritional supplements, topical treatments, and steroid injections. Evidenced-based results have been mixed using these treatment modalities. The results using unloader braces and viscosupplementation have also been variable. This article reviews the use of conservative treatment of OA of the knee.

  3. Preparation of {l_brace}0 1 0{r_brace}-faceted anatase TiO{sub 2} nanocuboids from peroxotitanium complex solution

    SciTech Connect

    Miao, Yigao; Gao, Jiacheng

    2012-12-15

    {l_brace}0 1 0{r_brace}-faceted anatase TiO{sub 2} nanocuboids have been fabricated by hydrothermal route using peroxotitanium complex solution as precursor. The effects of reaction time, the amount of urea and temperature on the formation of {l_brace}0 1 0{r_brace}-faceted anatase TiO{sub 2} were characterized by XRD, FESEM and TEM. The growth mechanism of nanocuboids was proposed that the nanocuboids were formed by the transition from H{sub 2}Ti{sub 2}O{sub 5}{center_dot}H{sub 2}O phase to anatase TiO{sub 2} in the basic condition. The photocatalytic performance of the prepared samples was tested in the degradation of Rhodamine B and the anatase nanocuboids exhibited enhanced photocatalytic activity compared with the standard P25 powders. - Graphical abstract: Anatase TiO{sub 2} nanocuboids with exposed {l_brace}0 1 0{r_brace} facets prepared by a hydrothermal method exhibit superior photocatalytic activity for degradation Rhodamine B to P25. Highlights: Black-Right-Pointing-Pointer One-step route to prepare {l_brace}0 1 0{r_brace}-faceted anatase TiO{sub 2} nanocrystal is developed. Black-Right-Pointing-Pointer Control synthesis of {l_brace}0 1 0{r_brace}-faceted anatase nanocuboids. Black-Right-Pointing-Pointer Mechanism on formation of anatase nanocuboids under hydrothermal condition. Black-Right-Pointing-Pointer The enhanced photocatalytic reactivity of nanocuboids is attributed to reactive facets.

  4. Thermal Behavior of Cylindrical Buckling Restrained Braces at Elevated Temperatures

    PubMed Central

    Talebi, Elnaz; Tahir, Mahmood Md.; Yasreen, Airil

    2014-01-01

    The primary focus of this investigation was to analyze sequentially coupled nonlinear thermal stress, using a three-dimensional model. It was meant to shed light on the behavior of Buckling Restraint Brace (BRB) elements with circular cross section, at elevated temperature. Such bracing systems were comprised of a cylindrical steel core encased in a strong concrete-filled steel hollow casing. A debonding agent was rubbed on the core's surface to avoid shear stress transition to the restraining system. The numerical model was verified by the analytical solutions developed by the other researchers. Performance of BRB system under seismic loading at ambient temperature has been well documented. However, its performance in case of fire has yet to be explored. This study showed that the failure of brace may be attributed to material strength reduction and high compressive forces, both due to temperature rise. Furthermore, limiting temperatures in the linear behavior of steel casing and concrete in BRB element for both numerical and analytical simulations were about 196°C and 225°C, respectively. Finally it is concluded that the performance of BRB at elevated temperatures was the same as that seen at room temperature; that is, the steel core yields prior to the restraining system. PMID:24526915

  5. Freeman Allen: Boston's pioneering physician anesthetist.

    PubMed

    Morris, Samuel D; Morris, Alina J; Rockoff, Mark A

    2014-11-01

    On October 16, 1846 dentist William T. G. Morton successfully demonstrated at the Massachusetts General Hospital that ether could prevent the pain of surgery. For decades afterwards, the administration of anesthesia in the United States was generally relegated to dentists, medical students, junior surgical trainees, or even nonmedical personnel. It was not until the end of the 19th century that a few pioneering physicians began devoting their careers to administering anesthesia to patients, studying ways to make it safer and more effective, and teaching others about its use. One of these individuals was Freeman Allen, who was appointed the first physician anesthetist to the medical staff at the Massachusetts General Hospital and several other major hospitals in Boston. We describe this remarkable man, his contributions to the early development of anesthesiology as a medical specialty, and the true cause of his untimely death. PMID:25329027

  6. Thermodynamic and kinetic characteristics of variations in shapes of ridges formed on l brace 100 r brace lithium fluoride surfaces

    SciTech Connect

    Bullard, J.W.; Glaeser, A.M.; Searcy, A.W.

    1991-12-01

    channels with widths in the range form 5 {mu}m were formed in {l brace}100{r brace} surfaces of LiF single crystals by a photolithographic technique. Specimens annealed at or above 0.90 T{mu}m, where T{mu} is the melting point, and then quenched showed the channels and the ridges between them develop rounded profiles. Evolution of these profiles was evaluated for the various channel widths and for interchannel ridge spacings of 5 to 100 {mu}m in terms of: (a) an accepted theoretical model for a surface diffusion controlled process, and (b) a model which assumes that shape changes depend only on the relative energies of attachment of atoms in surface sites with various surface curvatures. Either model is consistent with the experimental observations to within the reproducibility in measurements.

  7. Optimization of the place of the plastic hinges by steel braces at RC buildings

    NASA Astrophysics Data System (ADS)

    Hatami, Farzad; Ragheb, Mohammad; Namazi, Meysam

    2012-12-01

    Usage of steel braces has become a solution not only for retrofitting of RC structures but as a method in designing of concrete frames in recent years. Although X-braced RC frames have been number of successful studies, but eccentric braced RC frames have not been studied seriously. Maybe it's because of the non ductile behaviour of concrete beams. In this article, a numerical study was conducted to evaluate performance of concrete frames, braced with eccentric steel brace with a vertical steel shear link. Vertical steel shear link eliminated shortcomings of non ductile concrete beam. Therefore 4, 8 and 12 storey concrete frames were designed and subjected to a push over analysis. Life safety level was chose to evaluate the frames and hinges performance. Results were compared with the same frames designed with X braces and moment resisting frame. Results indicated that steel braces shift the place of plastic hinges to be formed on the bracing members instead of columns and beams. Furthermore steel braces delayed the process of formation of first plastic hinge and column failure mechanism.

  8. A new dual bracing system for improving the seismic behavior of steel structures

    NASA Astrophysics Data System (ADS)

    Kari, A.; Ghassemieh, M.; Abolmaali, S. A.

    2011-12-01

    Shape memory alloy braces and buckling restrained braces have been shown to exhibit favorable energy dissipating characteristics in steel structures. However, buckling restrained braces are unable to recover their original shape after unloading and consequently experience large residual inter-story drifts after the earthquake, which leads to large permanent deformations in the structure. On the other hand, shape memory braces possess the recentering feature which enables them to recover their original shape. Nevertheless, compared to buckling restrained braced frames, the shape memory bracing frame usually experiences larger maximum inter-story drifts during the earthquake. This paper presents the results of a numerical study conducted to investigate the benefit of using the combination of buckling restrained braces and shape memory braces (dual bracing) in one structure, for the new design as well as retrofitting purposes. The superelastic model of shape memory alloy and plasticity model of steel are incorporated into the nonlinear finite element program particularly developed for this research. Results revealed that, with the proper configuration, both aims, namely minimizing both residual and maximum inter-story drifts, can be attained.

  9. Analysis of the dynamic response of eccentric, disposable, and arch-shaped bracing systems to earthquakes

    SciTech Connect

    Shiah, G.C.

    1988-01-01

    This research investigates the dynamic response of the split K braced frame (SKBF), disposable knee braced frame (DKBF), and arch shape braced frame (ASBF) subjected to earthquake loads and the influence of shear, rotatory inertia, and axial force on the frequencies and mode shapes of the vibrating built-in beams. An asymmetric braced model is introduced to study the elastic stability of the arch shaped braced frame. The influence of the axial force on the natural frequencies and the mode shapes of the higher modes of the vibrating built-in beam are also studied. The earthquake loads are simulated by the random process using several built-up computer models. In these generated artificial earthquake models, the Autoregressive/Moving-Average (ARMA) models are used to analyze the San Fernando 1971 and El Centro 1941 earthquake loads. The energy-dissipating plates are used as the devices in the arch-shaped bracing frame in this study for the absorption of the earthquake energy. It is shown that the arch-shaped frame has a uniform story drift variation compared to split-K braced frame. The disposable knee braced frame has small story drift, and the arch-braced frame has no floor damages during earthquakes.

  10. Seismic retrofitting of reinforced concrete frame structures using GFRP-tube-confined-concrete composite braces

    NASA Astrophysics Data System (ADS)

    Moghaddasi B., Nasim S.; Zhang, Yunfeng; Hu, Xiaobin

    2012-03-01

    This paper presents a new type of structural bracing intended for seismic retrofitting use in framed structures. This special composite brace, termed glass-fiber-reinforced-polymer (GFRP)-tube-confined-concrete composite brace, is comprised of concrete confined by a GFRP tube and an inner steel core for energy dissipation. Together with a contribution from the GFRP-tube confined concrete, the composite brace shows a substantially increased stiffness to control story drift, which is often a preferred feature in seismic retrofitting. An analysis model is established and implemented in a general finite element analysis program — OpenSees, for simulating the load-displacement behavior of the composite brace. Using this model, a parametric study of the hysteretic behavior (energy dissipation, stiffness, ductility and strength) of the composite brace was conducted under static cyclic loading and it was found that the area ratio of steel core to concrete has the greatest influence among all the parameters considered. To demonstrate the application of the composite brace in seismic retrofitting, a three-story nonductile reinforced concrete (RC) frame structure was retrofitted with the composite braces. Pushover analysis and nonlinear time-history analyses of the retrofitted RC frame structure was performed by employing a suite of 20 strong ground motion earthquake records. The analysis results show that the composite braces can effectively reduce the peak seismic responses of the RC frame structure without significantly increasing the base shear demand.

  11. The Impact of Boston-Area Colleges and Universities on the Local Economy.

    ERIC Educational Resources Information Center

    SDL Systems Research Group, Toronto (Ontario).

    The impact of the Boston-area colleges and universities on the local economy was studied and major findings include the following: (1) Boston postsecondary education is a $1.3 billion annual enterprise, most of which money is spent in the Boston area. (2) Sources outside metropolitan Boston account for more than half of these expenditures. The…

  12. 34. Boston switch interlocking tower. Central Falls, Providence Co., RI. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    34. Boston switch interlocking tower. Central Falls, Providence Co., RI. Sec. 4116, mp 190.40. - Northeast Railroad Corridor, Amtrak route between CT & MA state lines, Providence, Providence County, RI

  13. “June Is `Boston' Out All Over...”

    PubMed Central

    Cantu, Jane Q.

    1966-01-01

    The 1966 meeting of the Medical Library Association will take place June 6-9 in Boston. Members are cordially invited to be present and to share the many enjoyable features of New England in the spring. Images PMID:5910384

  14. Pars plana vitrectomy through the Boston Keratoprosthesis type 1

    PubMed Central

    Harissi-Dagher, M; Durr, G M; Biernacki, K; Sebag, M; Rhéaume, M-A

    2013-01-01

    Purpose To ascertain the feasibility of pars plana vitrectomy (PPV) through a permanent Boston Keratoprosthesis type 1 (KPro) without the use of a temporary KPro. Methods A retrospective interventional case series. Eyes implanted with Boston KPro type 1 between 2008 and 2011 requiring PPV for vitreoretinal complications were included. Feasibility of PPV through the KPro, its anatomical and functional success were studied. Results Five out of 70 patients required PPV for vitreoretinal complications post-KPro surgery resulting in an incidence of 7%. PPV was feasible through the Boston KPro with no deleterious effects on the corneal carrier or the KPro itself. Repeat PPV was necessary in some cases. Although anatomical repair of the vitreoretinal complications was achieved in most cases, post PPV visual acuity remained poor in the majority. Conclusion Our study suggests that although PPV through the Boston KPro is a viable approach for vitreoretinal disease repair, visual rehabilitation remains poor. PMID:23579405

  15. Precambrian age of the Boston basin: new evidence from microfossils.

    PubMed

    Lenk, C; Strother, P K; Kaye, C A; Barghoorn, E S

    1982-05-01

    A Vendian (Late Proterozoic Z) age has been determined for the Boston Basin by comparison of a microflora from the Cambridge Argillite with other late Precambrian assemblages. The microfossils, which include Bavlinella cf. faveolata, are preserved as petrifactions in pyrite. This age designation for the sedimentary rocks of the Boston Basin should allow for the reinterpretation of the structure of the basin and its regional correlations.

  16. Terrorist bombings: foreign bodies from the Boston Marathon bombing.

    PubMed

    Brunner, John; Singh, Ajay K; Rocha, Tatiana; Havens, Joaquim; Goralnick, Eric; Sodickson, Aaron

    2015-02-01

    On April 15, 2013, 2 improvised explosive devices detonated at the 117th Boston Marathon, killing 3 people and injuring 264 others. In this article, the foreign bodies and injuries that presented at 2 of the responding level 1 trauma hospitals in Boston-Brigham and Women׳s Hospital and Massachusetts General Hospital--are reviewed with a broader discussion of blast injuries and imaging strategies. PMID:25639179

  17. 29. VIEW TO NORTHEAST FROM BOSTON HARBOR, DEER ISLAND PUMPING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    29. VIEW TO NORTHEAST FROM BOSTON HARBOR, DEER ISLAND PUMPING STATION, CA. 1909. FROM LEFT TO RIGHT: COAL WHARF, 1895 PUMPING STATION, 1909 ENGINE/PUMP HOUSE EXTENSION, INTAKE AND DISCHARGE PIPES ON WOODEN TRESTLE, RESIDENCE, AND UNKNOWN STRUCTURE Photocopy of photograph (Massachusetts State Archives, Environmental Affairs, MDC, Construction, 313 V 193 1-5 Box 8, Deer Island Pumping Station - Deer Island Pumping Station, Boston, Suffolk County, MA

  18. Precambrian age of the Boston Basin: New evidence from microfossils

    USGS Publications Warehouse

    Lenk, C.; Strother, P.K.; Kaye, C.A.; Barghoorn, E.S.

    1982-01-01

    A Vendian (Late Proterozoic Z) age has been determined for the Boston Basin by comparison of a microflora from the Cambridge Argillite with other late Precambrian assemblages. The microfossils, which include Bavlinella cf. faveolata, are preserved as petrifactions in pyrite. This age designation for the sedimentary rocks of the Boston Basin should allow for the reinterpretation of the structure of the basin and its regional correlations. Copyright ?? 1982 AAAS.

  19. Loma Prieta response of an eccentrically braced tall building

    USGS Publications Warehouse

    Celebi, M.

    1993-01-01

    Acceleration response records obtained during the October 17, 1989 Loma Prieta earthquake [Ms = 7.1] from the 47-story, eccentrically braced Embarcadero Building (No. 4) [EMB], located in San Francisco, California, are studied. The predominant response modes of the building and the associated dynamic characteristics are determined by spectral analyses and system identification techniques. The first modal frequencies are at approximately 0.19 Hz (NS) and 0.16 Hz (EW). Discontinuity of stiffness and mass at the 40th floor causes excessive drift ratios for the floors above.

  20. Can a brace be used to control the frequencies of a plate?

    PubMed

    Dumond, Patrick; Baddour, Natalie

    2013-01-01

    Although many improvements in the manufacturing of guitars have been made recently, one aspect that has often been overlooked is that of the acoustical consistency of the final manufactured product. The aim of this paper is to create a better understanding of the effect of a brace on the frequencies of vibration of the brace-soundboard system. This paper seeks to shed light on why a luthier 'tunes' braces when a guitar soundboard is hand-manufactured. A simple analytical model of a rectangular brace and soundboard is derived from first principles using Kirchhoff plate theory in order to develop insight into the effect of the soundboard's stiffness and brace thickness on the frequencies of the combined system. Natural frequencies and modeshapes of the combined system are calculated via the assumed shape method. Results show that by adjusting the thickness of the brace in order to compensate for the stiffness of the plate, one of the natural frequencies of the combined system can be adjusted to meet a desired value. However, simultaneously adjusting several natural frequencies cannot be done with a rectangular brace. Therefore modifications to the shape of the brace are explored. PMID:24255852

  1. {l_brace}311{r_brace} Defects in ion-implanted silicon: The cause of transient diffusion, and a mechanism for dislocation formation

    SciTech Connect

    Eaglesham, D.J.; Stolk, P.A.; Cheng, J.Y.; Gossmann, H.J.; Poate, J.M.; Haynes, T.E.

    1995-04-01

    Ion implantation is used at several critical stages of Si integrated circuit manufacturing. The authors show how {l_brace}311{r_brace} defects arising after implantation are responsible for both enhanced dopant diffusion during annealing, and stable dislocations post-anneal. They observe {l_brace}311{r_brace} defects in the earliest stages of an anneal. They subsequently undergo rapid Ostwald ripening and evaporation. At low implant doses evaporation dominates, and they can quantitatively relate the interstitials emitted from these defects to the transient enhancement in diffusivity of dopants such as B and P. At higher doses Ostwald ripening is significant, and they observe the defects to undergo a series of unfaulting reactions to form both Frank loops and perfect dislocations. They demonstrate the ability to control both diffusion and dislocations by the addition of small amounts of carbon impurities.

  2. Vital capacity evolution in patients treated with the CMCR brace: statistical analysis of 90 scoliotic patients treated with the CMCR brace

    PubMed Central

    2011-01-01

    Summary Objective To study the evolution of pulmonary capacity during orthopaedic treatment of scoliosis with the CMCR brace. Background Investigating the impact of moderate scoliosis on respiratory capacity and its evolution during CMCR brace treatment with mobile pads. Context Several studies demonstrate the impact of scoliosis on respiratory capacity but few of them focus on the impact of bracing treatment. We studied the evolution of the pulmonary capacity of a cohort of 90 scoliotic patients. Methods This retrospective study included 90 scoliotic patients treated since 1999 with a brace with mobile pads called CMCR (n = 90; mean age: 13 years; 10-16). These patients were diagnosed with an idiopathic scoliosis (mean angulation 20.6°). All patients underwent a radiographic and respiratory evaluation at the beginning, the middle and the end of treatment. Results Mean age at treatment start was 13. Before treatment, our patients did not have a normal pulmonary capacity: Forced Vital Capacity (FVC) was only 75% of the theoretical value. All curvature types (thoracic, thoraco-lumbar and combined scoliosis) involved this reduced pulmonary capacity, with moderate-angulated scoliosis having a negative impact. At the beginning of brace treatment, the loss of real vital capacity with brace (0.3 litres) was 10% lower than without brace. At CMCR removal, the FVC had increased by 0.4 litre (21% +/- 4.2% compared to the initial value). The theoretical value had increased by 3%. This positive evolution was most important in girls at a low Risser stage (0,1,2), and before 11 years of age. Conclusion These results supported our approach of orthesis conception for adolescent idiopathic scoliosis which uses braces with mobile pads to preserve thorax and spine mobility. PMID:21880121

  3. Novel 1D coordination polymer {l_brace}Tm(Piv){sub 3{r_brace}n}: Synthesis, structure, magnetic properties and thermal behavior

    SciTech Connect

    Fomina, Irina; Dobrokhotova, Zhanna; Aleksandrov, Grygory; Emelina, Anna; Bykov, Mikhail; Bogomyakov, Artem; Puntus, Lada; Novotortsev, Vladimir; Eremenko, Igor

    2012-01-15

    The new 1D coordination polymer {l_brace}Tm(Piv){sub 3{r_brace}n} (1), where Piv=OOCBu{sup t-}, was synthesized in high yield (>95%) by the reaction of thulium acetate with pivalic acid in air at 100 Degree-Sign S. According to the X-ray diffraction data, the metal atoms in compound 1 are in an octahedral ligand environment unusual for lanthanides. The magnetic and luminescence properties of polymer 1, it's the solid-phase thermal decomposition in air and under argon, and the thermal behavior in the temperature range of -50 Horizontal-Ellipsis +50 Degree-Sign S were investigated. The vaporization process of complex 1 was studied by the Knudsen effusion method combined with mass-spectrometric analysis of the gas-phase composition in the temperature range of 570-680 K. - Graphical Abstract: Novel 1D coordination polymer {l_brace}Tm(Piv){sub 3{r_brace}n} was synthesized and studied by X-ray diffraction. The magnetic, luminescence properties, the thermal behavior and the volatility for the compound {l_brace}Tm(Piv){sub 3{r_brace}n} were investigated. Black-Small-Square Highlights: Black-Right-Pointing-Pointer We synthesized the coordination polymer {l_brace}Tm(Piv){sub 3{r_brace}n}. Black-Right-Pointing-Pointer Tm atoms in polymer have the coordination number 6. Black-Right-Pointing-Pointer Polymer exhibits blue-color emission at room temperature. Black-Right-Pointing-Pointer Polymer shows high thermal stability and volatility. Black-Right-Pointing-Pointer Polymer has no phase transitions in the range of -50 Horizontal-Ellipsis +50 Degree-Sign S.

  4. An experimental investigation on the ultimate strength of epoxy repaired braced partial infilled RC frames

    NASA Astrophysics Data System (ADS)

    Dubey, Shailendra Kumar Damodar; Kute, Sunil

    2014-09-01

    Due to earthquake, buildings are damaged partially or completely. Particularly structures with soft storey are mostly affected. In general, such damaged structures are repaired and reused. In this regard, an experimental investigation was planned and conducted on models of single-bay, single-storey of partial concrete infilled reinforced concrete (RC) frames up to collapse with corner, central and diagonal steel bracings. Such collapsed frames were repaired with epoxy resin and retested. The initiative was to identify the behaviour, extent of restored ultimate strength and deflection of epoxy-retrofitted frames in comparison to the braced RC frames. The performance of such frames has been considered only for lateral loads. In comparison to bare RC frames, epoxy repaired partial infilled frames have significant increase in the lateral load capacity. Central bracing is more effective than corner and diagonal bracing. For the same load, epoxy repaired frames have comparable deflection than similar braced frames.

  5. Effect of Brace to Osteoporotic Vertebral Fracture: a Meta-Analysis.

    PubMed

    Jin, Yuan Zhe; Lee, Jae Hyup

    2016-10-01

    Brace is one of the most commonly used interventions to manage osteoporotic vertebral fracture. However, its authentic effectiveness remains unclear. The aim of this study was to investigate the efficacy of brace in patients with osteoporotic vertebral fractures. We conducted a literature review and meta-analysis following the guideline and handbook of the Cochrane collaboration. Ten published articles were included in this study and data from 4 randomized controlled trials were analyzed. Low quality evidence proved using Spinomed brace could bring large and significant beneficial effect to patients with sub-acute osteoporotic vertebral fractures. Very low quality evidence proved no significant difference between Spinomed orthosis, rigid brace and soft brace when they were used in patients with acute fractures. Therefore, it might be applicable to recommend middle term use of Spinomed orthosis to patients with subacute fracture. In addition, this study emphasized the need for high quality randomized controlled trials. PMID:27550495

  6. Effect of Brace to Osteoporotic Vertebral Fracture: a Meta-Analysis

    PubMed Central

    2016-01-01

    Brace is one of the most commonly used interventions to manage osteoporotic vertebral fracture. However, its authentic effectiveness remains unclear. The aim of this study was to investigate the efficacy of brace in patients with osteoporotic vertebral fractures. We conducted a literature review and meta-analysis following the guideline and handbook of the Cochrane collaboration. Ten published articles were included in this study and data from 4 randomized controlled trials were analyzed. Low quality evidence proved using Spinomed brace could bring large and significant beneficial effect to patients with sub-acute osteoporotic vertebral fractures. Very low quality evidence proved no significant difference between Spinomed orthosis, rigid brace and soft brace when they were used in patients with acute fractures. Therefore, it might be applicable to recommend middle term use of Spinomed orthosis to patients with subacute fracture. In addition, this study emphasized the need for high quality randomized controlled trials. PMID:27550495

  7. Titanium Coating of the Boston Keratoprosthesis

    PubMed Central

    Salvador-Culla, Borja; Jeong, Kyung Jae; Kolovou, Paraskevi Evi; Chiang, Homer H.; Chodosh, James; Dohlman, Claes H.; Kohane, Daniel S.

    2016-01-01

    Purpose We tested the feasibility of using titanium to enhance adhesion of the Boston Keratoprosthesis (B-KPro), ultimately to decrease the risk of implant-associated complications. Methods Cylindrical rods were made of poly(methyl methacrylate) (PMMA), PMMA coated with titanium dioxide (TiO2) over a layer of polydopamine (PMMATiO2), smooth (Ti) and sandblasted (TiSB) titanium, and titanium treated with oxygen plasma (Tiox and TiSBox). Topography and surface chemistry were analyzed by scanning electron microscopy (SEM), atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS). Adhesion force between rods and porcine corneas was measured ex vivo. Titanium sleeves, smooth and sandblasted, were inserted around the stem of the B-KPro and implanted in rabbits. Tissue adhesion to the stem was assessed and compared to an unmodified B-Kpro after 1 month. Results X-ray photoelectron spectroscopy demonstrated successful deposition of TiO2 on polydopamine-coated PMMA. Oxygen plasma treatment did not change the XPS spectra of titanium rods (Ti and TiSB), although it increased their hydrophilicity. The materials did not show cell toxicity. After 14 days of incubation, PMMATiO2, smooth titanium treated with oxygen plasma (Tiox), and sandblasted titanium rods (TiSB, TiSBox) showed significantly higher adhesion forces than PMMA ex vivo. In vivo, the use of a TiSB sleeve around the stem of the B-KPro induced a significant increase in tissue adhesion compared to a Ti sleeve or bare PMMA. Conclusions Sandblasted titanium sleeves greatly enhanced adherence of the B-KPro to the rabbit cornea. This approach may improve adhesion with the donor cornea in humans as well. Translational Relevance This approach may improve adhesion with donor corneas in humans. PMID:27152247

  8. Medial collateral ligament knee sprains in college football. Effectiveness of preventive braces.

    PubMed

    Albright, J P; Powell, J W; Smith, W; Martindale, A; Crowley, E; Monroe, J; Miller, R; Connolly, J; Hill, B A; Miller, D

    1994-01-01

    This is the second of 2 articles on a 3-year investigation of medial collateral ligament sprains of the knee to assess the effectiveness of prophylactic knee braces in NCAA Division I college football players. Position, string, type of session, and daily brace wear were recorded. The injury rates for braced and unbraced knees were used to create an incidence density ratio. The data were stratified and simultaneously controlled for position, string, and session and evaluated for their statistical significance. The 987 Big Ten players generated 155,772 knee exposures over the study period (50% braced). Noticeable differences existed in the rates of injury for the braced and unbraced knees in almost every position during practices, depending on player or nonplayer status. When the influential factors of position, string, and session are considered, there is a consistent but not statistically significant tendency for the players wearing preventive knee braces to experience a lower injury rate than for their unbraced counterparts. For starters and substitutes in the line positions, as well as the linebackers and tight ends, there was a consistent trend toward a lower injury rate in both practices and games. The braced players in the skill positions (backs/kickers), at least during games, exhibited a higher injury rate.

  9. Technology and task parameters relating to the effectiveness of the bracing strategy

    NASA Technical Reports Server (NTRS)

    Book, Wayne J.; Wang, J. J.

    1989-01-01

    The bracing strategy has been proposed in various forms as a way to improve robot performance. One version of the strategy employs independent stages of motion. The first stage, referred to as the large or bracing arm, carries the second stage of motion. After the first stage has completed its motion it is braced to provide a more rigid base of motion with a more accurate relationship to the parts to be manipulated. The hypothesis is that more rapid completion of certain tasks is possible with lighter arms using the bracing strategy. While it is easy to make conceptual arguments why this should be so, it is less easy to specify even approximately when this will be true for some reasonably generic situation. There is no relevant experience base with bracing arms to be compared to non-bracing arms. Furthermore, if one were interested in obtaining such practical experience, there would be no methodical guidance on the selection of an interesting case, one in which the unproven approach, bracing, can show its superiority. If one such case exists, only the extent of applicability of the new approach is in question. One set of interesting cases is likely to be applications in which a large workspace must be covered, but where a series of small accurate moves will remain within a smaller region of the total workspace. A prototype application with these characteristics is set up and a skeleton design of arms using the competing strategies are compared.

  10. Restorative effects of exercise rehabilitation and bracing on females with lateral displacement of patella

    PubMed Central

    Karimzadehfini, Atiye; Zolaktaf, Vahid; Vahdatpour, Babak

    2014-01-01

    Background: This investigation compared the effects of exercise rehabilitation and bracing on muscle flexibility and strength as well as knee proprioception and pain in female sufferers of lateral displacement of patella (LDP). Materials and Methods: Twenty-two females with unilateral LDP were randomly divided into two groups to receive exercises (n = 12) or patellar brace (n = 10). Both groups were evaluated before and after 8 weeks with isokinetic dynamometer (Biodex System 3 Pro) for muscle strength and proprioception, with SLR, Active Knee Flexion, and Sit and Reach tests for flexibility assessment and with a visual analog scale for pain. Results: Muscle flexibility in both exercise and bracing groups improved (F(1,20)≥5.99 and P ≤ 0.024), whereas improvement in bracing group was not significant. Significant interaction was observed in favor of exercise group in 2 strength tests of knee flexion and knee extension (F(1,20)≥6.564 and P ≤ 0.019). For proprioception, a significant interaction was observed in favor of bracing group (F(1,20) =7.944 and P = 0.011). Also the results showed both exercise rehab and brace decreased significantly pain severity during stair ascending and descending. Conclusion: These results suggest that better flexibility and more strength in exercise group somehow reduced the stress on patellofemoral joint and it, in turn, alleviated the symptoms and pain. It is also likely that relieving effects of brace and improvement of proprioception by it allows patients to be more physically active and it could have, more or less, effects similar to exercise. Therefore both exercise and brace could be prescribed for patients with LDP. It seems application of the patellar brace combined with exercise might be a better treatment for these patients, because they could improve strength, flexibility and proprioception. PMID:25221768

  11. Scapular Bracing and Alteration of Posture and Muscle Activity in Overhead Athletes With Poor Posture

    PubMed Central

    Cole, Ashley K; McGrath, Melanie L; Harrington, Shana E; Padua, Darin A; Rucinski, Terri J; Prentice, William E

    2013-01-01

    Context Overhead athletes commonly have poor posture. Commercial braces are used to improve posture and function, but few researchers have examined the effects of shoulder or scapular bracing on posture and scapular muscle activity. Objective To examine whether a scapular stabilization brace acutely alters posture and scapular muscle activity in healthy overhead athletes with forward-head, rounded-shoulder posture (FHRSP). Design Randomized controlled clinical trial. Setting Applied biomechanics laboratory. Patients or Other Participants Thirty-eight healthy overhead athletes with FHRSP. Intervention(s) Participants were assigned randomly to 2 groups: compression shirt with no strap tension (S) and compression shirt with the straps fully tensioned (S + T). Posture was measured using lateral-view photography with retroreflective markers. Electromyography (EMG) of the upper trapezius (UT), middle trapezius (MT), lower trapezius (LT), and serratus anterior (SA) in the dominant upper extremity was measured during 4 exercises (scapular punches, W's, Y's, T's) and 2 glenohumeral motions (forward flexion, shoulder extension). Posture and exercise EMG measurements were taken with and without the brace applied. Main Outcome Measure(s) Head and shoulder angles were measured from lateral-view digital photographs. Normalized surface EMG was used to assess mean muscle activation of the UT, MT, LT, and SA. Results Application of the brace decreased forward shoulder angle in the S + T condition. Brace application also caused a small increase in LT EMG during forward flexion and Y's and a small decrease in UT and MT EMG during shoulder extension. Brace application in the S + T group decreased UT EMG during W's, whereas UT EMG increased during W's in the S group. Conclusions Application of the scapular brace improved shoulder posture and scapular muscle activity, but EMG changes were highly variable. Use of a scapular brace might improve shoulder posture and muscle activity in

  12. Bracing of the trunk and neck has a differential effect on head control during gait.

    PubMed

    Morrison, S; Russell, D M; Kelleran, K; Walker, M L

    2015-09-01

    During gait, the trunk and neck are believed to play an important role in dissipating the transmission of forces from the ground to the head. This attenuation process is important to ensure head control is maintained. The aim of the present study was to assess the impact of externally restricting the motion of the trunk and/or neck segments on acceleration patterns of the upper body and head and related trunk muscle activity. Twelve healthy adults performed three walking trials on a flat, straight 65-m walkway, under four different bracing conditions: 1) control-no brace; 2) neck-braced; 3) trunk-braced; and 4) neck-trunk braced. Three-dimensional acceleration from the head, neck (C7) and lower trunk (L3) were collected, as was muscle activity from trunk. Results revealed that, when the neck and/or trunk were singularly braced, an overall decrease in the ability of the trunk to attenuate gait-related oscillations was observed, which led to increases in the amplitude of vertical acceleration for all segments. However, when the trunk and neck were braced together, acceleration amplitude across all segments decreased in line with increased attenuation from the neck to the head. Bracing was also reflected by increased activity in erector spinae, decreased abdominal muscle activity and lower trunk muscle coactivation. Overall, it would appear that the neuromuscular system of young, healthy individuals was able to maintain a consistent pattern of head acceleration, irrespective of the level of bracing, and that priority was placed over the control of vertical head accelerations during these gait tasks.

  13. Treatment of Osteoarthritis of the Knee with Bracing: A Scoping Review

    PubMed Central

    Phillips, Steven; Silvia Li, Chuan; Phillips, Mark; Bischoff, Markus; Ali, Pervez; Chahal, Jas; Snider, Matthew; Bhandari, Mohit

    2016-01-01

    Knee osteoarthritis is a leading cause of disability around the world. Knee bracing provides a conservative management option for symptom relief. A variety of different bracing types, manufacturers and products are currently available on the market. The goal of this study is to examine the current state of the literature regarding the treatment of knee osteoarthritis with unloader bracing, specifically examining the representation of specific brace types, manufacturers and models within the literature. A scoping review technique was used because of its ability to evaluate research activity within an area of study and identify gaps within the literature. A thorough search of the MEDLINE database was conducted for articles where a knee brace model was identified, and we identified characteristics of the studies to evaluate important information about the body of literature related to knee bracing for the treatment of osteoarthritis. Fifty eligible studies were identified. The majority of studies have been published in the United States, and a large increase in the number of publications in this field was seen between 2010-2014. The most prominent study type was prospective comparative studies (44%), however there is a lack of randomized controlled trials (6%) within the literature. The most prominent hinge type within the literature is the dual hinge push brace, followed by the single hinge pull. While a large increase in the number of studies evaluating the treatment of knee osteoarthritis with bracing has occurred in the past 5 years, there is a lack of high quality studies evaluating the efficacy of the technique, as well as a lack of studies comparing bracing types and models. PMID:27433297

  14. Prophylactic Ankle Taping and Bracing: A Numbers-Needed-to-Treat and Cost-Benefit Analysis.

    PubMed

    Olmsted, Lauren C.; Vela, Luzita I.; Denegar, Craig R.; Hertel, Jay

    2004-03-01

    OBJECTIVE: Taping and bracing are thought to decrease the incidence of ankle sprains; however, few investigators have addressed the effect of preventive measures on the rate of ankle sprains. Our purpose was to examine the effectiveness of ankle taping and bracing in reducing ankle sprains by applying a numbers-needed-to-treat (NNT) analysis to previously published studies. DATA SOURCES: We searched PubMed, CINAHL, SPORT Discus, and PEDro for original research from 1966 to 2002 with key words ankle taping, ankle sprains, injury incidence, prevention, ankle bracing, ankle prophylaxis, andnumbers needed to treat. We eliminated articles that did not address the effects of ankle taping or bracing on ankle injury rates using an experimental design. DATA SYNTHESIS: The search produced 8 articles, of which 3 permitted calculation of NNT, which addresses the clinical usefulness of an intervention by providing estimates of the number of treatments needed to prevent 1 injury occurrence. In a study of collegiate intramural basketball players, the prevention of 1 ankle sprain required the taping of 26 athletes with a history of ankle sprain and 143 without a prior history. In a military academy intramural basketball program, prevention of 1 sprain required bracing of 18 athletes with a history of ankle sprain and 39 athletes with no history. A study of ankle bracing in competitive soccer players produced an NNT of 5 athletes with a history of previous sprain and 57 without a prior injury. A cost- benefit analysis of ankle taping versus bracing revealed taping to be approximately 3 times more expensive than bracing. CONCLUSIONS/RECOMMENDATIONS: Greater benefit is achieved in applying prophylactic ankle taping or bracing to athletes with a history of ankle sprain, compared with those without previous sprains. The generalizability of these results to other physically active populations is unknown.

  15. Overutilization of bracing in the management of penetrating spinal cord injury from gunshot wounds.

    PubMed

    Eftekhary, Nima; Nwosu, Kenneth; McCoy, Eric; Fukunaga, Dudley; Rolfe, Kevin

    2016-07-01

    OBJECTIVE Penetrating gunshot wounds (GSWs) to the spinal column are stable injuries and do not require spinal orthoses or bracing postinjury. Nonetheless, a high number of GSW-related spinal cord injury (SCI) patients are referred with a brace to national rehabilitation centers. Unnecessary bracing may encumber rehabilitation, create skin breakdown or pressure ulcers, and add excessive costs. The aim of this study was to confirm the stability of spinal column injuries from GSWs and quantify the overutilization rate of bracing based on long-term follow-up. METHODS This retrospective cohort study was performed at a nationally renowned rehabilitation center. In total, 487 GSW-related SCI patients were transferred for rehabilitation and identified over the last 14 years. Retrospective chart review and telephone interviews were conducted to identify patients who were braced at the initial treating institution and determine if late instability, deformity, or neurological deterioration resulted in secondary surgery or intervention. In addition, 396 unoperated patients were available for analysis after 91 patients were excluded for undergoing an initial destabilizing surgical dissection or laminectomy, thereby altering the natural history of the injury. All of these 396 patients who presented with a brace had bracing discontinued upon reaching the facility. RESULTS In total, 203 of 396 patients were transferred with a spinal brace, demonstrating an overutilization rate of 51%. No patients deteriorated neurologically or needed later surgery for spinal column deformity or instability attributable to the injury. All patients had stable injuries. The patterns of injury and severity of neurological injury did not vary between patients who were initially braced or unbraced. The average follow-up was 7.8 years (range 1-14 years) and the average age was 25 years (range 10-62 years). CONCLUSIONS The incidence of brace overutilization for penetrating GSW-related SCI was 51%. Long

  16. 78 FR 41497 - Boston and Maine Corporation and Springfield Terminal Railroad Company-Petition for Declaratory...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-10

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Boston and Maine Corporation and Springfield Terminal Railroad Company--Petition for Declaratory Order The Boston and Maine Corporation and Springfield Terminal Railway...

  17. Boston & Maine Railroad, Berlin Branch Bridge #143.06, Spanning Snyder ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Boston & Maine Railroad, Berlin Branch Bridge #143.06, Spanning Snyder Brook at former Boston & Maine Railroad (now Presidential Range Rail Trail), just south of U.S. Route 2, Randolph, Coos County, NH

  18. 75 FR 52023 - Boston Harbor Islands National Recreation Area Advisory Council; Notice of Public Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-24

    ... want further information concerning the meeting may contact Superintendent Bruce Jacobson at Boston... INFORMATION CONTACT: Superintendent Bruce Jacobson, (617) 223-8667. SUPPLEMENTARY INFORMATION: The Advisory...: August 13, 2010. Bruce Jacobson, Superintendent, Boston Harbor Islands NRA. BILLING CODE P...

  19. 78 FR 717 - ENE (Environment Northeast); Greater Boston Real Estate Board; National Consumer Law Center...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-04

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission ENE (Environment Northeast); Greater Boston Real Estate Board; National..., ENE (Environment Northeast), Greater Boston Real Estate Board, National Consumer Law Center,...

  20. Soil lead-blood lead relationship among Boston children

    SciTech Connect

    Rabinowitz, M.B.; Bellinger, D.C.

    1988-12-01

    Lead contaminated soil has been consistently been found to contribute significantly to children's risk of blood lead elevation. An association between soil lead and blood lead has been reported for children in Holland, Rochester, New York, Omaha, Nebraska, Christchurch, New Zealand, and Kellogg, Idaho. The authors report on the connection between soil and blood lead levels among a group of Boston children in order to document this pattern of association in a specific setting which may be analogous to other situations of interest. The base population consisted of 11,837 consecutive births at the Boston Hospital for Women between April 1979 and April 1981.

  1. 33 CFR 167.75 - In the approach to Boston, MA: General.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false In the approach to Boston, MA... Separation Schemes and Precautionary Areas § 167.75 In the approach to Boston, MA: General. The traffic separation scheme (TSS) in the approach to Boston, MA, consists of three parts: Two precautionary areas and...

  2. 33 CFR 167.76 - In the approach to Boston, MA: Precautionary areas.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false In the approach to Boston, MA... Separation Schemes and Precautionary Areas § 167.76 In the approach to Boston, MA: Precautionary areas. (a) A... the traffic separation schemes in the approach to Boston, MA, and Eastern approach, off...

  3. How Are Boston Pilot School Students Faring? "Student Demographics, Engagement, and Performance," 1998-2003

    ERIC Educational Resources Information Center

    Tung, Rosann; Ouimette, Monique; Feldman, Jay

    2004-01-01

    This report examines the efficacy of the Boston Pilot Schools, a model of urban schools created in 1994 to promote innovation and increased choice options within the Boston Public Schools (BPS). Unlike most urban public schools, the Boston Pilot Schools have control over budget, staffing, curriculum, governance, and time, all critical conditions…

  4. Julius Eichberg: String and Vocal Instruction in Nineteenth-Century Boston.

    ERIC Educational Resources Information Center

    Howe, Sondra Wieland

    1996-01-01

    Reviews the career and contributions of Julius Eichberg (1824-93), a pioneer in string and vocal instruction in Boston (Massachusetts). Eichberg founded the Boston Conservatory, supervised music education for the Boston public school system, and taught teacher-training courses. In addition, he composed choral works and operas, and edited several…

  5. View southeast; lower bracing connection Naval Base PhiladelphiaPhiladelphia Naval ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View southeast; lower bracing connection - Naval Base Philadelphia-Philadelphia Naval Shipyard, Structure No. 841, Delaware Avenue between East Fourth Street & Webster Avenue, League Island, Philadelphia, Philadelphia County, PA

  6. BRACING WITHOUT SCALE FIGURE. AveryBartholomew Patent Railroad Iron Bridge, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    BRACING WITHOUT SCALE FIGURE. - Avery-Bartholomew Patent Railroad Iron Bridge, Town park south of Route 222, west of Owasco Inlet (moved from Elm Street Extension spanning Fall Creek, Nubia, NY), Groton, Tompkins County, NY

  7. TOP CHORD, CENTRAL BRACING DETAIL. AveryBartholomew Patent Railroad Iron ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    TOP CHORD, CENTRAL BRACING DETAIL. - Avery-Bartholomew Patent Railroad Iron Bridge, Town park south of Route 222, west of Owasco Inlet (moved from Elm Street Extension spanning Fall Creek, Nubia, NY), Groton, Tompkins County, NY

  8. DETAIL OF BRACING WITH SCALE FIGURE. AveryBartholomew Patent Railroad ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    DETAIL OF BRACING WITH SCALE FIGURE. - Avery-Bartholomew Patent Railroad Iron Bridge, Town park south of Route 222, west of Owasco Inlet (moved from Elm Street Extension spanning Fall Creek, Nubia, NY), Groton, Tompkins County, NY

  9. 12. WORK CREW REMOVING CROSS BRACE AT U2, PART OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    12. WORK CREW REMOVING CROSS BRACE AT U2, PART OF CONRAIL'S PROGRAM TO INCREASE CLEARANCE ON ITS BRIDGES AND OVERPASSES FOR DOUBLE-STACK TRAINS. - Conrail Port Perry Bridge, Spanning Monongahela River, Elizabeth, Allegheny County, PA

  10. Grover Cleveland School, Boston, Massachusetts. Refurbishment and Status Report.

    ERIC Educational Resources Information Center

    General Electric Co., Philadelphia, PA.

    The solar heating system is a retrofit installation on the roof of the Grover Cleveland Middle School in Boston. The system includes 4,600 square feet of flat plate collectors, a 2,000 gallon solar energy storage tank, plus the required structural steel, piping, insulation, pumps, heat exchangers, and controls to heat the air supplied by two…

  11. Art and Education for Women in 19th Century Boston.

    ERIC Educational Resources Information Center

    Efland, Arthur D.

    1985-01-01

    Art was introduced into women's education in 19th century Boston as a kind of finishing school treatment to equip them for marriage and later for careers as school teachers. Common school art emphasized practical application. Feminine art education, by contrast, promoted the teaching of art as high culture. (Author/RM)

  12. A Parents' Guide to the Magnet Schools in Boston.

    ERIC Educational Resources Information Center

    City-Wide Educational Coalition, Boston, MA.

    This guidebook for parents was written by staff members of the City-Wide Educational Coalition, many of whom are parents of children attending magnet schools. When the city-wide district of magnet schools was created in Boston, parents found that they had the option of requesting student assignment at any of the magnet schools. One problem parents…

  13. Boston School Committee "Student Desegregation Plan." A Response.

    ERIC Educational Resources Information Center

    Freedom House Inst. on Schools and Education, Roxbury, MA.

    The initial black community response to the desegregation plan submitted by the School Department is contained in this document. The principal purpose is to make clear to the court that in evaluating this plan, or any other, improvements in the quality of schooling is sought. Efforts to rid the Boston schools of discriminatory pupil placement are…

  14. 78 FR 35756 - Drawbridge Operation Regulations; Charles River, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-14

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 117 Drawbridge Operation Regulations; Charles River, Boston, MA AGENCY: Coast Guard, DHS. ACTION: Notice of temporary deviation from regulations. SUMMARY: The Commander,...

  15. 78 FR 37455 - Drawbridge Operation Regulations; Charles River, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-21

    ... regulation was published in the Federal Register (78 FR 35756) under the same name and docket number. This... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 117 Drawbridge Operation Regulations; Charles River, Boston, MA...

  16. Deadly Serious: The Boston Marathon Tragedy and Education

    ERIC Educational Resources Information Center

    Harney, John O.

    2013-01-01

    Two bombs exploded at the Boston Marathon on Monday, April 15, killing three and injuring more than 260. The pressure-cooker bombs sent shrapnel at leg-level, leading to amputations for 15 victims. An immediate concern was how to deal with the feelings of school children whose sense of safety was shattered by the blasts. As the city healed, Boston…

  17. Boston Naming Test Discontinuation Rule: "Rigorous" versus "Lenient" Interpretations.

    ERIC Educational Resources Information Center

    Ferman, Tanis J.; Ivnik, Robert J.; Lucas, John A.

    1998-01-01

    Two interpretations of the Boston Naming Test (BNT) (E. Kaplan, H. Goodglass, and S. Weintraub, 1983) discontinuation rule of six consecutive failures were found in BNT use with 655 normal older adults and 140 people with Alzheimer's disease. Differences between lenient and rigorous interpretations of responses could have impact on…

  18. 51. Boston Post Road Bridge with Rye Station in background. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    51. Boston Post Road Bridge with Rye Station in background. Rye, Westchester Co., NY. Sec. 9108, MP 24.22. - Northeast Railroad Corridor, Amtrak Route between New Jersey/New York & New York/Connecticut State Lines, New York County, NY

  19. The Tuition Advance Fund: An Analysis Prepared for Boston University.

    ERIC Educational Resources Information Center

    Botsford, Keith

    Three models for anlayzing the Tuition Advance Fund (TAF) are examined. The three models are: projections by the Institute for Demographic and Economic Studies (IDES), projections by Data Resources, Inc. (DRI), and the Tuition Advance Fund Simulation (TAFSIM) models from Boston University. Analysis of the TAF is based on enrollment, price, and…

  20. 13. Photocopy of drawing (original in AMTRAK Engineering Department), Boston ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. Photocopy of drawing (original in AMTRAK Engineering Department), Boston Bridge Works, Inc., March 8, 1912 N. Y. N. H. & H. R. R. BRIDGE #214 SHORE LINE DIV. DETAILS OF SIDEWALK BKTS, SHOES, ROLLERS, ETC. - Ferry Street Railroad Bridge, Ferry Street over New Haven Railroad, New Haven, New Haven County, CT

  1. A Report on the Schools of Boston - 1962.

    ERIC Educational Resources Information Center

    Boston Redevelopment Authority, MA.

    As part of its plan for urban renewal in Boston, the Redevelopment Authority initiated this study of the school buildings of the city. The study is based upon an intensive analysis of enrollment projections, the conditions of existing schools, the grade organization, and the impact of urban renewal on individual areas and on the city as a whole.…

  2. Boston Fern Prodcution in Whole Pine Tree Substrates

    Technology Transfer Automated Retrieval System (TEKTRAN)

    An experiment was conducted to evaluate processed whole pine trees as an alternative container substrate for Boston fern production. Three whole pine tree (WPT) substrates and a commercial peat-lite mix (PL) were each amended per cubic meter with 0.59 kg micromax, 2.37 kg Harrell’s 16-6-12 Plus (4-5...

  3. Progress and Promise: Results from the Boston Pilot Schools

    ERIC Educational Resources Information Center

    Tung, Rosann; Ouimette, Monique; Rugen, Leah

    2006-01-01

    New research conducted by Boston's Center for Collaborative Education documents significant achievement by students who attend the city's Pilot Schools. Pilot School students are performing better than the district averages across every indicator of student engagement and performance, including the statewide standardized assessment (MCAS). In…

  4. Boston College Case Shows Weakness of Researchers' Confidentiality Pledges

    ERIC Educational Resources Information Center

    Schmidt, Peter

    2012-01-01

    The author reports on a legal battle over oral-history records housed at Boston College that casts light on how little legal weight pledges of confidentiality to research subjects actually have. As a federal court weighs whether to let the federal government seize, and hand over to British authorities, the college's records of confidential…

  5. Boston: An Urban Community. Boston and the American Revolution; The Leaders, the Issues and the Common Man. Boston's Architecture: From First Townhouse to New City Hall. Boston's Artisans of the Eighteenth Century. Annotated Reading Lists.

    ERIC Educational Resources Information Center

    Schneider, Eric C.; And Others

    These three annotated reading guides were developed for courses offered at the Boston Public Library under the National Endowment for the Humanities Library Learning Program. The first lists 32 selected recent works of major importance covering the areas of colonial society, political structure, and the American Revolution. The 27 titles cited in…

  6. Charter, Private, and Public Schools Work Together in Boston

    ERIC Educational Resources Information Center

    Lam, Diana

    2014-01-01

    A public, Catholic, and charter school in Boston all work together to share their strengths and learn from each other in an effort to deliver the best education for all of their students. The arrangement is called the School Performance Partnership, and it is a grantee of the Bill and Melinda Gates Foundation.

  7. Busing in Boston: Political Issues. Comparing Political Experiences, Experimental Edition.

    ERIC Educational Resources Information Center

    Gillespie, Judith A.; Lazarus, Stuart

    Unit two to the second-semester "Comparing Political Experiences" course focuses on a specific controversial political issue: court-ordered busing in Boston. A documentary approach represents the core of instruction in this 12th-grade unit. This approach avoids lengthy narratives of a theoretical approach and yet is more in-depth than the…

  8. The Emerald Necklace: Boston's Green Connection. Teaching with Historic Places.

    ERIC Educational Resources Information Center

    Marsh, Lisa; Snow, Pamela

    In 1870, Boston, Massachusetts, was an overcrowded, noisy, and dirty city. Concerned with the health and happiness of Bostonians restricted to these unhealthy surroundings, the city hired Frederick Law Olmsted to design a park system. The series of parks he designed over the next several years is known as the Emerald Necklace. From lovely…

  9. 33 CFR 80.130 - Boston Harbor entrance.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... the easternmost tower at Nahant, charted in approximate position latitude 42°25.4′ N., longitude 70°54.6′ W., to Boston Lighted Horn Buoy “B”; thence to the esternmost radio tower at Hull, charted...

  10. 33 CFR 80.130 - Boston Harbor entrance.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... the easternmost tower at Nahant, charted in approximate position latitude 42°25.4′ N., longitude 70°54.6′ W., to Boston Lighted Horn Buoy “B”; thence to the esternmost radio tower at Hull, charted...

  11. 33 CFR 80.130 - Boston Harbor entrance.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... the easternmost tower at Nahant, charted in approximate position latitude 42°25.4′ N., longitude 70°54.6′ W., to Boston Lighted Horn Buoy “B”; thence to the esternmost radio tower at Hull, charted...

  12. The effects of load carriage and bracing on the balance of schoolgirls with adolescent idiopathic scoliosis

    PubMed Central

    Leung, Dawn S. S.; Holmes, Andrew D.

    2007-01-01

    The balance function of children is known to be affected by carriage of a school backpack. Children with adolescent idiopathic scoliosis (AIS) tend to show poorer balance performance, and are typically treated by bracing, which further affects balance. The objective of this study is to examine the combined effects of school backpack carriage and bracing on girls with AIS. A force platform was used to record center of pressure (COP) motion in 20 schoolgirls undergoing thoraco-lumbar-sacral orthosis (TLSO brace) treatment for AIS. COP data were recorded with and without brace while carrying a backpack loaded at 0, 7.5, 10, 12.5 and 15% of the participant’s bodyweight (BW). Ten participants stood on a solid base and ten stood on a foam base, while all participants kept their eyes closed throughout. Sway parameters were analyzed by repeated measures ANOVA. No effect of bracing was found for the participants standing on the solid base, but wearing the brace significantly increased the sway area, displacement and medio-lateral amplitude in the participants standing on the foam base. The medio-lateral sway amplitude of participants standing on the solid base significantly increased with backpack load, whereas significant increases in antero-posterior sway amplitude, sway path length, sway area per second and short term diffusion coefficient were found in participants standing on the foam base. The poorer balance performance exhibited by participants with AIS when visual and somatosensory input is challenged appears to be exacerbated by wearing a TLSO brace, but no interactive effect between bracing and backpack loading was found. PMID:17340156

  13. Effectiveness of an outside-the-boot ankle brace in reducing parachuting related ankle injuries

    PubMed Central

    Schmidt, M; Sulsky, S; Amoroso, P

    2005-01-01

    Objectives: To examine the efficacy of an outside-the-boot parachute ankle brace (PAB) in reducing risk of ankle injury to army paratrooper trainees and to identify inadvertent risks associated with PAB use. Design: The authors compared hospitalization rates for ankle, musculoskeletal, and other traumatic injury among 223 172 soldiers trained 1985–2002 in time periods defined by presence/absence of PAB use protocols. Multiple logistic regression analysis estimated adjusted odds ratios (OR) and 95% confidence intervals for injury outcomes, comparing pre and post brace periods to the brace protocol period. Setting: A research database consisting of training rosters from the US Army Airborne training facility (Fort Benning, GA) occupational, demographic, and hospitalization information. Main outcome measures: Injuries were considered training related if they occurred during a five week period starting with first scheduled static line parachute jump and a parachuting cause of injury code appeared in the hospital record. Results: Of 939 parachuting related hospitalizations during the defined risk period, 597 (63.6%) included an ankle injury diagnosis, 198 (21.1%) listed a musculoskeletal (non-ankle) injury, and 69 (7.3%) cited injuries to multiple body parts. Risk of ankle injury hospitalization was higher during both pre-brace (adjusted OR 2.38, 95% CI 1.92 to 2.95) and post-brace (adjusted OR 1.72, 95% CI 1.27 to 2.32) periods compared with the brace protocol period. Odds of musculoskeletal (non-ankle) injury or injury to multiple body parts did not change between the brace and post-brace periods. Conclusion: Use of a PAB during airborne training appears to reduce risk of ankle injury without increasing risk of other types of traumatic injury. PMID:15933409

  14. Tridimensional morphology and kinetics of etch pit on the {l_brace}0 0 0 1{r_brace} plane of sapphire crystal

    SciTech Connect

    Zhang Lunyong; Sun Jianfei; Zuo Hongbo; Yuan Zhiyong; Zhou Ji; Xing Dawei; Han Jiecai

    2012-08-15

    The tridimensional morphology and etching kinetics of the etch pit on the C-{l_brace}0 0 0 1{r_brace} plane of sapphire crystal ({alpha}-Al{sub 2}O{sub 3}) in molten KOH were studied experimentally. It was shown that the etch pit takes on tridimensional morphologies with triangular symmetry same as the symmetric property of the sapphire crystal. Pits like centric and eccentric triangular pyramid as well as hexagonal pyramid were observed, but the latter is less in density. In-depth analyses show the side walls of the etch pits belong to the {l_brace}1 1{sup Macron} 0 2{sup Macron }{r_brace} family, and the triangular pit contains edges full composed by Al{sup 3+} ions on the etching surface so it is more stable than the hexagonal pit since its edges on the etching surface contains Al{sup 2+} ions. The etch pits developed in a manner of kinematic wave by the step moving with constant speed, which is controlled by the chemical reaction with activation energy of 96.6 kJ/mol between Al{sub 2}O{sub 3} and KOH. - Graphical abstract: Schematic showing the atomic configuration of the predicted side walls of regular triangular pyramid shaped etch pit on the C-{l_brace}0 0 0 1{r_brace} plane of sapphire crystal. Highlights: Black-Right-Pointing-Pointer Observed the tridimensional morphology of etch pits. Black-Right-Pointing-Pointer Figured out the atomic configuration origin of the etch pits. Black-Right-Pointing-Pointer Quantitatively determined the etch rates of the etch pits.

  15. Soil amplification with a strong impedance contrast: Boston, Massachusetts

    USGS Publications Warehouse

    Baise, Laurie G.; Kaklamanos, James; Berry, Bradford M; Thompson, Eric

    2016-01-01

    In this study, we evaluate the effect of strong sediment/bedrock impedance contrasts on soil amplification in Boston, Massachusetts, for typical sites along the Charles and Mystic Rivers. These sites can be characterized by artificial fill overlying marine sediments overlying glacial till and bedrock, where the depth to bedrock ranges from 20 to 80 m. The marine sediments generally consist of organic silts, sand, and Boston Blue Clay. We chose these sites because they represent typical foundation conditions in the city of Boston, and the soil conditions are similar to other high impedance contrast environments. The sediment/bedrock interface in this region results in an impedance ratio on the order of ten, which in turn results in a significant amplification of the ground motion. Using stratigraphic information derived from numerous boreholes across the region paired with geologic and geomorphologic constraints, we develop a depth-to-bedrock model for the greater Boston region. Using shear-wave velocity profiles from 30 locations, we develop average velocity profiles for sites mapped as artificial fill, glaciofluvial deposits, and bedrock. By pairing the depth-to-bedrock model with the surficial geology and the average shear-wave velocity profiles, we can predict soil amplification in Boston. We compare linear and equivalent-linear site response predictions for a soil layer of varying thickness over bedrock, and assess the effects of varying the bedrock shear-wave velocity (VSb) and quality factor (Q). In a moderate seismicity region like Boston, many earthquakes will result in ground motions that can be modeled with linear site response methods. We also assess the effect of bedrock depth on soil amplification for a generic soil profile in artificial fill, using both linear and equivalent-linear site response models. Finally, we assess the accuracy of the model results by comparing the predicted (linear site response) and observed site response at the Northeastern

  16. The development and use of SPIO Lycra compression bracing in children with neuromotor deficits.

    PubMed

    Hylton, N; Allen, C

    1997-01-01

    The use of flexible compression bracing in persons with neuromotor deficits offers improved possibilities for stability and movement control without severely limiting joint movement options. At the Children's Therapy Center in Kent, Washington, this treatment modality has been explored with increasing application in children with moderate to severe cerebral palsy and other neuromotor deficits over the past 6 years, with good success. Significant functional improvements using Neoprene shoulder/trunk/hip Bracing led us to experiment with much lighter compression materials. The stabilizing pressure input orthosis or SPIO bracing system (developed by Cheryl Allen, parent and Chief Designer, and Nancy Hylton, PT) is custom-fitted to the stability, movement control and sensory deficit needs of a specific individual. SPIO bracing developed for a specific child has often become part of a rapidly increasing group of flexible bracing options which appear to provide an improved base of support for functional gains in balance, dynamic stability, general and specific movement control with improved postural and muscle readiness. Both deep sensory and subtle biomechanical factors may account for the functional changes observed. This article discusses the development and current use of flexible compression SPIO bracing in this area.

  17. An advanced compliance monitor for patients undergoing brace treatment for idiopathic scoliosis.

    PubMed

    Chalmers, Eric; Lou, Edmond; Hill, Doug; Zhao, H Vicky

    2015-02-01

    Adolescent idiopathic scoliosis is a spinal deformity affecting 2-3% of adolescents. Brace treatment, the most common non-surgical treatment, uses a hard plastic orthotic shell to prevent progression of the deformity. Previous studies have found association between treatment outcome and patients' compliance with the prescribed brace-wear regimen. However, the exact relationship between compliance and treatment outcome has yet to be elucidated. Current compliance monitoring techniques may not be providing enough information about patients' brace-wear habits. Building on previous work, we present a new compliance monitor which records both temperature and force applied to the patient's body. The combination of temperature and force readings shows both how often and how tightly the brace is worn. The new monitor is designed for minimal size and power consumption, measuring 5.2 cm × 2.5 cm × 0.8 cm, with a battery life of approximately one year. Seven patients wore the monitor in this pilot study. The temperature-based compliance estimate differed significantly from the force-based estimate in four out of seven cases. This suggests that some patients may wear their braces very loosely, and that existing temperature-only or force-only compliance monitors may not be giving a complete picture of brace-wear habits. PMID:25619614

  18. Predicting success or failure of brace treatment for adolescents with idiopathic scoliosis.

    PubMed

    Chalmers, Eric; Westover, Lindsey; Jacob, Johith; Donauer, Andreas; Zhao, Vicky H; Parent, Eric C; Moreau, Marc J; Mahood, James K; Hedden, Douglas M; Lou, Edmond H M

    2015-10-01

    Adolescent idiopathic scoliosis (AIS) is a three-dimensional spinal deformity. Brace treatment is a common non-surgical treatment, intended to prevent progression (worsening) of the condition during adolescence. Estimating a braced patient's risk of progression is an essential part of planning treatment, so method for predicting this risk would be a useful decision support tool for practitioners. This work attempts to discover whether failure of brace treatment (progression) can be predicted at the start of treatment. Records were obtained for 62 AIS patients who had completed brace treatment. Subjects were labeled as "progressive" if their condition had progressed despite brace treatment and "non-progressive" otherwise. Wrapper-based feature selection selected two useful predictor variables from a list of 14 clinical measurements taken from the records. A logistic regression model was trained to classify patients as "progressive" or "non-progressive" using these two variables. The logistic regression model's simplicity and interpretability should facilitate its clinical acceptance. The model was tested on data from an additional 28 patients and found to be 75 % accurate. This accuracy is sufficient to make the predictions clinically useful. It can be used online: http://www.ece.ualberta.ca/~dchalmer/SimpleBracePredictor.html . PMID:26002592

  19. Predicting success or failure of brace treatment for adolescents with idiopathic scoliosis.

    PubMed

    Chalmers, Eric; Westover, Lindsey; Jacob, Johith; Donauer, Andreas; Zhao, Vicky H; Parent, Eric C; Moreau, Marc J; Mahood, James K; Hedden, Douglas M; Lou, Edmond H M

    2015-10-01

    Adolescent idiopathic scoliosis (AIS) is a three-dimensional spinal deformity. Brace treatment is a common non-surgical treatment, intended to prevent progression (worsening) of the condition during adolescence. Estimating a braced patient's risk of progression is an essential part of planning treatment, so method for predicting this risk would be a useful decision support tool for practitioners. This work attempts to discover whether failure of brace treatment (progression) can be predicted at the start of treatment. Records were obtained for 62 AIS patients who had completed brace treatment. Subjects were labeled as "progressive" if their condition had progressed despite brace treatment and "non-progressive" otherwise. Wrapper-based feature selection selected two useful predictor variables from a list of 14 clinical measurements taken from the records. A logistic regression model was trained to classify patients as "progressive" or "non-progressive" using these two variables. The logistic regression model's simplicity and interpretability should facilitate its clinical acceptance. The model was tested on data from an additional 28 patients and found to be 75 % accurate. This accuracy is sufficient to make the predictions clinically useful. It can be used online: http://www.ece.ualberta.ca/~dchalmer/SimpleBracePredictor.html .

  20. Molecular mapping of the brace root traits in sorghum (Sorghum bicolor L. Moench)

    PubMed Central

    Li, Ronggai; Han, Yucui; Lv, Peng; Du, Ruiheng; Liu, Guoqing

    2014-01-01

    The presence and morphology of plant brace roots are important root architecture traits. Brace roots contribute significantly to effective anchorage and water and nutrient uptake during late growth and development, and more importantly, have a substantial influence on grain yield under soil flooding or water limited conditions. However, little is known about the genetic mechanisms that underlie brace root traits. In this study, quantitative trait loci (QTLs) for presence of brace roots from the sorghum landrace “Sansui” were mapped and associated molecular markers were identified. A linkage map was constructed with 109 assigned simple sequence repeat markers using a F2 mapping population derived from the cross Sansui/Jiliang 2. Two QTLs associated with presence of brace roots were localized on chromosomes 6 and 7. The major QTL on chromosome 7 between markers Dsenhsbm7 and Xcup 70 explained about 52.5% of the phenotypic variation, and the minor QTL on chromosome 6 was flanked by Xtxp127 and Xtxp6 and accounted for 7.0% of phenotypic variation. These results will provide information for the improvement of sorghum root architecture associated with brace roots. PMID:24987306

  1. The development and use of SPIO Lycra compression bracing in children with neuromotor deficits.

    PubMed

    Hylton, N; Allen, C

    1997-01-01

    The use of flexible compression bracing in persons with neuromotor deficits offers improved possibilities for stability and movement control without severely limiting joint movement options. At the Children's Therapy Center in Kent, Washington, this treatment modality has been explored with increasing application in children with moderate to severe cerebral palsy and other neuromotor deficits over the past 6 years, with good success. Significant functional improvements using Neoprene shoulder/trunk/hip Bracing led us to experiment with much lighter compression materials. The stabilizing pressure input orthosis or SPIO bracing system (developed by Cheryl Allen, parent and Chief Designer, and Nancy Hylton, PT) is custom-fitted to the stability, movement control and sensory deficit needs of a specific individual. SPIO bracing developed for a specific child has often become part of a rapidly increasing group of flexible bracing options which appear to provide an improved base of support for functional gains in balance, dynamic stability, general and specific movement control with improved postural and muscle readiness. Both deep sensory and subtle biomechanical factors may account for the functional changes observed. This article discusses the development and current use of flexible compression SPIO bracing in this area. PMID:9689245

  2. An innovative seismic bracing system based on a superelastic shape memory alloy ring

    NASA Astrophysics Data System (ADS)

    Gao, Nan; Jeon, Jong-Su; Hodgson, Darel E.; DesRoches, Reginald

    2016-05-01

    Shape memory alloys (SMAs) have great potential in seismic applications because of their remarkable superelasticity. Seismic bracing systems based on SMAs can mitigate the damage caused by earthquakes. The current study investigates a bracing system based on an SMA ring which is capable of both re-centering and energy dissipation. This lateral force resisting system is a cross-braced system consisting of an SMA ring and four tension-only cable assemblies, which can be applied to both new construction and seismic retrofit. The performance of this bracing system is examined through a quasi-static cyclic loading test and finite element (FE) analysis. This paper describes the experimental design in detail, discusses the experimental results, compares the performance with other bracing systems based on SMAs, and presents an Abaqus FE model calibrated on the basis of experimental results to simulate the superelastic behavior of the SMA ring. The experimental results indicate that the seismic performance of this system is promising in terms of damping and re-centering. The FE model can be used in the simulation of building structures using the proposed bracing system.

  3. Experimental and analytical studies on the seismic behavior of conventional and hybrid braced frames

    NASA Astrophysics Data System (ADS)

    Lai, Jiun-Wei

    This dissertation summarizes both experimental and analytical studies on the seismic response of conventional steel concentrically braced frame systems of the type widely used in North America, and preliminary studies of an innovative hybrid braced frame system: the Strong-Back System. The research work is part of NEES small group project entitled "International Hybrid Simulation of Tomorrow's Braced Frames." In the experimental phase, a total of four full-scale, one-bay, two-story conventional braced frame specimens with different bracing member section shapes and gusset plate-to-beam connection details were designed and tested at the NEES Berkeley Laboratory. Three braced frame specimens were tested quasi-statically using the same predefined loading protocol to investigate the inelastic cyclic behavior of code-compliant braced frames at both the global and local level. The last braced frame specimen was nearly identical to one of those tested quasi-statically. However, it was tested using hybrid simulation techniques to examine the sensitivity of inelastic behavior on loading sequence and to relate the behavior observed to different levels of seismic hazard. Computer models of the test specimens were developed using two different computer software programs. In the software framework OpenSees fiber-based line elements were used to simulate global buckling of members and yielding and low-cycle fatigue failure at sections. The LS-DYNA analysis program was also used to model individual struts and the test specimens using shell elements with adaptive meshing and element erosion features. This program provided enhanced ability to simulate section local buckling, strain concentrations and crack development. The numerical results were compared with test results to assess and refine and the ability of the models to predict braced frame behavior. A series of OpenSees numerical cyclic component simulations were then conducted using the validated modeling approach. Two

  4. The main function of ankle braces is to control the joint position before landing.

    PubMed

    Eils, Eric; Rosenbaum, Dieter

    2003-03-01

    The aim of the present investigation was to evaluate the stabilizing effect of 10 different ankle braces during simulated inversion on a tilting platform. Twenty-five subjects participated in the study (23 +/- 3 yrs, 71 +/- 12 kg, 177 +/- 9 cm). Ten commercially available ankle braces and a trapdoor in combination with a goniometer system that measured hindfoot inversion inside the shoe were used. Inversion was subdivided into a free fall and a maximum inversion phase. Results showed that all braces restricted inversion significantly between 51% and 15% compared to the no-brace condition but distinct differences between models were found. Maximum inversion angle and inversion velocity were lower for those braces that restricted inversion most effectively during the free fall phase. Reaction times of the peroneus longus did not appear to influence the degree of inversion. Relatively constant differences between free fall and maximum inversion angles for all models (between 6 degrees and 10 degrees) and a high correlation between these two parameters suggests that the main function of ankle braces is to restrict inversion during the free fall phase and not at the extremes of motion.

  5. The role of ankle bracing for prevention of ankle sprain injuries.

    PubMed

    Gross, Michael T; Liu, Hsin-Yi

    2003-10-01

    Lateral ankle sprains are one of the most common injuries incurred in recreational and competitive athletics. These injuries have a significant impact in terms of cost, athletic participation, and activities of daily living. Prophylactic ankle braces are often used to reduce the risk of injury recurrence when individuals return to athletic participation. The purpose of this clinical commentary is to review the literature and provide our own experience relative to the use of prophylactic ankle bracing. Relatively high incidence rates of ankle sprain injury have been reported for basketball and soccer athletes, military trainees, and individuals with a previous history of ankle sprain injury. Semirigid and laced ankle braces have significantly reduced the incidence of initial and recurrent ankle sprain injuries in athletic and military samples. With few exceptions, these braces do not appear to affect functional performance adversely. The prophylactic use of semirigid ankle braces appears warranted to reduce the incidence of initial and, in particular, recurrent ankle sprain injuries for individuals who participate in activities that have the highest risk for these injuries. Additional research is needed to evaluate the many new braces that are available and in use and their influence on the incidence of ankle sprain injury and functional performance.

  6. Sur les traces de l'heritage francais en Nouvelle-Angleterre: Boston (Tracing French Heritage in New England: Boston).

    ERIC Educational Resources Information Center

    Quintal, Claire

    This booklet highlights some of the more important elements of the French heritage in the Boston area, particularly during the Revolutionary period and the time of the establishment of many institutions of American life in New England. It is intended for secondary school students in a bilingual education setting who have at least an "intermediate…

  7. The Path Forward: School Autonomy and Its Implications for the Future of Boston's Public Schools. Understanding Boston

    ERIC Educational Resources Information Center

    French, Dan; Hawley Miles, Karen; Nathan, Linda

    2014-01-01

    Boston Public Schools is at a crossroads. Nearly one-third of the system's schools operate under one of several "autonomy" structures, where school leaders have increased flexibility regarding staffing and other resources, and choice data indicate parents are far more likely to prefer these schools over so-called "traditional"…

  8. Hispanic Youth in Boston: In Search of Opportunities and Accountability. A Report by the Boston Latino Youth Policy Analysis Project.

    ERIC Educational Resources Information Center

    Hispanic Office of Planning and Evaluation, Inc., Boston, MA.

    This report discusses the school-to-work transition process of Hispanic youth in Boston. The report was prepared in response to the high rates of unemployment and participation in low-paying service sector jobs by Hispanics and was funded by a grant from the Hispanic Policy Development Project as part of a national effort to identify key public…

  9. Active Bodies, Active Minds: A Case Study on Physical Activity and Academic Success in Lawrence, Massachusetts. Understanding Boston

    ERIC Educational Resources Information Center

    Sacheck, Jennifer; Wright, Catherine; Chomitz, Virginia; Chui, Kenneth; Economos, Christina; Schultz, Nicole

    2015-01-01

    This case study addresses two major priorities of the Boston Foundation--health and education. Since the 2007 publication of the "Understanding Boston" report "The Boston Paradox: Lots of Health Care, Not Enough Health," the Boston Foundation has worked to draw attention to the epidemic of preventable chronic disease that not…

  10. Seismic Energy Demand of Buckling-Restrained Braced Frames

    SciTech Connect

    Choi, Hyunhoon; Kim, Jinkoo

    2008-07-08

    In this study seismic analyses of steel structures were carried out to examine the effect of ground motion characteristics and structural properties on energy demands using 60 earthquake ground motions recorded in different soil conditions, and the results were compared with those of previous works. Analysis results show that ductility ratios and the site conditions have significant influence on input energy. The ratio of hysteretic to input energy is considerably influenced by the ductility ratio and the strong motion duration. It is also observed that as the predominant periods of the input energy spectra are significantly larger than those of acceleration response spectra used in the strength design, the strength demand on a structure designed based on energy should be checked especially in short period structures. For that reason framed structures with buckling-restrained-braces (BRBs) were designed in such a way that all the input energy was dissipated by the hysteretic energy of the BRBs, and the results were compared with those designed by conventional strength-based design procedure.

  11. RESEARCH PROGRAM FOR BRACE - PROVIDING NO AND SPECIFIC NO2 MEASUREMENTS FOR THE BRACE DATABASE DURING THE MAY '02 FIELD STUDY

    EPA Science Inventory

    Three scientists from the EPA, RTP facility in Research Triangle Park, N.C. worked with the State of Florida and BRACE scientists to provide accurate and precise NO and specific NO2 measurements at two monitoring sites, the rural Sydney site and the near-bay, suburban Gandy sit...

  12. DFT Description of the Magnetic Structure of Polynuclear Transition-Metal Clusters: The Complexes [{l_brace}Cu(bpca){sub 2}(H{sub 2}O){sub 2}{r_brace} {l_brace}Cu(NO{sub 3}){sub 2}{r_brace}{sub 2}], (bpca = Bis(2-pyridylcarbonyl)amine), and [Cu(DBSQ)(C{sub 2}H{sub 5}O)]{sub 2}, (DBSQ = 3,5-di-tert-butyl-semiquinonato)

    SciTech Connect

    Bencini, Alessandro; Totti, Federico

    2005-02-20

    Broken symmetry B3LYP-DFT calculations on three- and four-spin systems, namely the complexes [{l_brace}Cu(bpca){sub 2}(H{sub 2}O){sub 2}{r_brace} {l_brace}Cu(NO{sub 3}){sub 2}{r_brace}{sub 2}], (bpca = Bis(2-pyridylcarbonyl)amine), 1, and [Cu(DBSQ)(C{sub 2}H{sub 5}O)]{sub 2}, (DBSQ = 3,5-di-tert-butyl-semiquinonato), 2, have been performed. A procedure to compute the exchange coupling constants through the use of a complete set of broken symmetry determinants is suggested.

  13. Biomechanical Analysis of Internal Bracing for Treatment of Medial Knee Injuries.

    PubMed

    Gilmer, Brian B; Crall, Timothy; DeLong, Jeffrey; Kubo, Takanori; Mackay, Gordon; Jani, Sunil S

    2016-05-01

    The internal brace technique uses a high-strength suture tie to augment injured tissues or a primary repair, allowing early rehabilitation. Anatomic repair with internal bracing is a novel and promising treatment for femoral-sided medial knee avulsion injuries of the medial collateral ligament and posterior oblique ligament. Unfortunately, biomechanical and clinical data are lacking. To evaluate this technique compared with other treatment options, 3 assays of 9 cadaveric matched pairs (54 knees) were tested to failure at 30° under valgus load in a biomechanical testing apparatus. The primary outcome measure was moment at failure (Nm), with secondary outcome measures of stiffness (Nm/°), valgus angulation at 10 Nm (°), and valgus angulation at failure (°). Repair with internal bracing was compared with the intact state, repair alone, and allograft reconstruction. The mean moment to failure (62.5±24.9 Nm) for internal bracing was significantly lower than that for intact specimens (107.2±39.7 Nm) (P=.009). Mean moment to failure and valgus angle at failure were significantly greater for internal bracing (95±31.9 Nm) than for repair (73.4±27.6 Nm) (P=.05). Internal bracing was similar to reconstruction for the primary outcome measure (53.5±26.3 Nm vs 66.9±28.8 Nm) (P=.227) and for all secondary outcome measures. These findings indicate that posteromedial knee repair with internal bracing for femoral-sided avulsions is superior to repair alone and is similar to allograft reconstruction for all parameters measured; however, this technique did not recreate biomechanical properties equivalent to the intact state. [Orthopedics. 2016; 39(3):e532-e537.]. PMID:27135459

  14. Implementation of the Boston University Space Physics Acquisition Center

    NASA Technical Reports Server (NTRS)

    Spence, Harlan E.

    1998-01-01

    The tasks carried out during this grant achieved the goals as set forth in the initial proposal. The Boston University Space Physics Acquisition CEnter (BUSPACE) now provides World Wide Web access to data from a large suite of both space-based and ground-based instruments, archived from different missions, experiments, or campaigns in which researchers associated with the Center for Space Physics (CSP) at Boston University have been involved. These archival data sets are in digital form and are valuable for retrospective data analysis studies of magnetospheric as well as ionospheric, thermospheric, and mesospheric physics. We have leveraged our grass-roots effort with the NASA seed money to establish dedicated hardware (computer and hard disk augmentation) and student support to grow and maintain the system. This leveraging of effort now permits easy access by the space physics community to many underutilized, yet important data sets, one example being that of the SCATHA satellite.

  15. Boston solar retrofits: Studies of solar access and economics

    NASA Astrophysics Data System (ADS)

    Shapiro, M.; Doyle, S.

    1980-11-01

    Studies of solar access and solar retrofit economics are described for residential applications in the City of Boston. The study of solar access was based upon a random sample of 94 buildings; the sample was stratified to ensure a broad geographic representation from the city's various sections. Using available data on the heights and orientations of the sampled structures and surrounding buildings, each building's hourly access to sunlight was computed separately for the roof and south facing walls. The second study was a comparative analysis of the economics of several solar heating and hot water systems. Next, a number of alternative approaches for solar space and water heating were identified from interviews with individuals and groups involved in solar retrofit projects in the Boston area.

  16. Boston Society's 11th Annual Applied Pharmaceutical Analysis conference.

    PubMed

    Lee, Violet; Liu, Ang; Groeber, Elizabeth; Moghaddam, Mehran; Schiller, James; Tweed, Joseph A; Walker, Gregory S

    2016-02-01

    Boston Society's 11th Annual Applied Pharmaceutical Analysis conference, Hyatt Regency Hotel, Cambridge, MA, USA, 14-16 September 2015 The Boston Society's 11th Annual Applied Pharmaceutical Analysis (APA) conference took place at the Hyatt Regency hotel in Cambridge, MA, on 14-16 September 2015. The 3-day conference affords pharmaceutical professionals, academic researchers and industry regulators the opportunity to collectively participate in meaningful and relevant discussions impacting the areas of pharmaceutical drug development. The APA conference was organized in three workshops encompassing the disciplines of regulated bioanalysis, discovery bioanalysis (encompassing new and emerging technologies) and biotransformation. The conference included a short course titled 'Bioanalytical considerations for the clinical development of antibody-drug conjugates (ADCs)', an engaging poster session, several panel and round table discussions and over 50 diverse talks from leading industry and academic scientists. PMID:26853375

  17. Public-private partnership from theory to practice: Walgreens and the Boston Public Health Commission supporting each other before and after the Boston bombings.

    PubMed

    Martin, Atyia; Williams, Jim

    2014-01-01

    This paper presents an overview of the public health and medical services continuity of operations, response and recovery efforts in the aftermath of the Boston bombings. Countless public and private organisations and agencies came together to support the community and the survivors. The efforts of these organisations define what it means to be Boston Strong.

  18. Public-private partnership from theory to practice: Walgreens and the Boston Public Health Commission supporting each other before and after the Boston bombings.

    PubMed

    Martin, Atyia; Williams, Jim

    2014-01-01

    This paper presents an overview of the public health and medical services continuity of operations, response and recovery efforts in the aftermath of the Boston bombings. Countless public and private organisations and agencies came together to support the community and the survivors. The efforts of these organisations define what it means to be Boston Strong. PMID:24578022

  19. Forces exerted during exercises by patients with adolescent idiopathic scoliosis wearing fiberglass braces

    PubMed Central

    Romano, Michele; Carabalona, Roberta; Petrilli, Silvia; Sibilla, Paolo; Negrini, Stefano

    2006-01-01

    Objective To quantify and compare the forces exerted by scoliosis patients in fiberglass braces during exercises usually prescribed in departments where casts are made. The exercises are intended to increase corrective forces, activate muscles, stimulate ventilation and help the patient psychologically. Setting Outpatient care. Patients 17 consecutive adolescent patients wearing fiberglass brace for idiopathic scoliosis. Interventions Exercises (kyphotization, rotation, "escape from the pad") in different positions (sitting, supine, on all fours). Main outcome measure Pressure detected by the F-Socket System between the rib hump and the pad of the brace. Results In static and dynamic conditions, the position adopted did not alter the total pressure exerted by the brace, although the part of the sensor stimulated did vary. Kyphotization and rotation exercises produced a significant increase of pressure (+ 58.9% and +29.8%, respectively); however, the "escape from the pad" exercise, despite its name, did not produce any significant variation of pressure. Conclusion Exercises in the brace allow adjunctive forces to be applied on soft tissues and through them, presumably on the spine. Different exercises can be chosen to obtain different actions. Physical exercises and sporting activities are useful in mechanical terms, although other important actions should not be overlooked. PMID:16859544

  20. Inelastic behavior of cold-formed braced walls under monotonic and cyclic loading

    NASA Astrophysics Data System (ADS)

    Gerami, Mohsen; Lotfi, Mohsen; Nejat, Roya

    2015-06-01

    The ever-increasing need for housing generated the search for new and innovative building methods to increase speed and efficiency and enhance quality. One method is the use of light thin steel profiles as load-bearing elements having different solutions for interior and exterior cladding. Due to the increase in CFS construction in low-rise residential structures in the modern construction industry, there is an increased demand for performance inelastic analysis of CFS walls. In this study, the nonlinear behavior of cold-formed steel frames with various bracing arrangements including cross, chevron and k-shape straps was evaluated under cyclic and monotonic loading and using nonlinear finite element analysis methods. In total, 68 frames with different bracing arrangements and different ratios of dimensions were studied. Also, seismic parameters including resistance reduction factor, ductility and force reduction factor due to ductility were evaluated for all samples. On the other hand, the seismic response modification factor was calculated for these systems. It was concluded that the highest response modification factor would be obtained for walls with bilateral cross bracing systems with a value of 3.14. In all samples, on increasing the distance of straps from each other, shear strength increased and shear strength of the wall with bilateral bracing system was 60 % greater than that with lateral bracing system.

  1. Experimental Tests of a Real Building Seismically Retrofitted by Special Buckling-Restrained Braces

    SciTech Connect

    D'Aniello, Mario; Della Corte, Gaetano; Mazzolani, Federico M.

    2008-07-08

    Buckling Restrained Braces (BRBs), differently from conventional braces, do not exhibit appreciable difference between the tensile and compression capacity and no strength degradation of brace capacity under compressive and cyclic loading. Since lateral and local buckling behaviour modes are restrained, large inelastic capacities are attainable. Hence, BRBs may represent an efficient and reliable solution for reducing the seismic vulnerability of buildings. Results of experimental tests on the response of a real two-story reinforced concrete (RC) building equipped with BRBs are presented and discussed. The considered BRBs are a special 'only-steel' version of the more common 'unbonded braces'. In particular, two different BRBs have been tested. Both of them are detachable 'only-steel' devices, consisting in a rectangular steel plate and a restraining steel sleeve. The latter is composed by two omega shapes which are bolted together. The main characteristic of the braces consists in the possibility to hide them within the space between the facing and the backing of masonry infill walls commonly used for RC buildings.

  2. Investigation of the nonlinear seismic behavior of knee braced frames using the incremental dynamic analysis method

    NASA Astrophysics Data System (ADS)

    Sheidaii, Mohammad Reza; TahamouliRoudsari, Mehrzad; Gordini, Mehrdad

    2016-06-01

    In knee braced frames, the braces are attached to the knee element rather than the intersection of beams and columns. This bracing system is widely used and preferred over the other commonly used systems for reasons such as having lateral stiffness while having adequate ductility, damage concentration on the second degree convenience of repairing and replacing of these elements after Earthquake. The lateral stiffness of this system is supplied by the bracing member and the ductility of the frame attached to the knee length is supplied through the bending or shear yield of the knee member. In this paper, the nonlinear seismic behavior of knee braced frame systems has been investigated using incremental dynamic analysis (IDA) and the effects of the number of stories in a building, length and the moment of inertia of the knee member on the seismic behavior, elastic stiffness, ductility and the probability of failure of these systems has been determined. In the incremental dynamic analysis, after plotting the IDA diagrams of the accelerograms, the collapse diagrams in the limit states are determined. These diagrams yield that for a constant knee length with reduced moment of inertia, the probability of collapse in limit states heightens and also for a constant knee moment of inertia with increasing length, the probability of collapse in limit states increases.

  3. Ulnar Collateral Ligament Repair with Internal Brace Augmentation

    PubMed Central

    Walters, Brian L.; Cain, E. Lyle; Emblom, Benton A.; Frantz, Jamie T.; Dugas, Jeffrey R.

    2016-01-01

    Objectives: Objective: Our purpose is to describe a novel surgical technique for Ulnar Collateral Ligament repair in the young adolescent, and present the clinical results of a retrospective cohort of patients. We hypothesized that using an internal brace to augment the repair of the native ulnar collateral ligament would allow for a more aggressive physical therapy protocol and ultimately facilitate both an expeditious return to sport and a high level of patient satisfaction. Methods: Methods: After obtaining IRB approval for this study, our institutional electronic database was utilized to identify all patients who had undergone our novel technique for UCL repair between the years 2013-2014. An orthopedic fellow conducted phone surveys and the KJOC questionnaire was administered. Primary outcome measures included KJOC scores at 6 and 12 months, time to initiation of a plyometrics regimen, an interval throwing program and return to sports. Secondary measures including patient satisfaction, level of competition achieved and percent return to normal were also collected. Results: Results: Twenty-two patients (19 male/3 female, average age 17.8 years) underwent surgery between 2013-2014. All patients were high school level athletes at the time of injury and included nineteen baseball players (13 pitchers), two football players, a javelin thrower and a cheerleader. Injury patterns included seven proximal tears, one mid substance, thirteen distal and four avulsions. Nine patients underwent ulnar transposition at the time of surgery, one had undergone prior transposition and the remainder of the patient’s ulnar nerves were left in situ. At six and twelve months the average KJOC scores respectively were 88.3 and 93. Patients that underwent transposition had KJOC scores of 78.3 at six months and 97.5 at twelve while patients that were left in-situ scored 82 and 91. These differences were not significant. The average number of weeks until initiation of plyometrics was

  4. Health-hazard evaluation report HETA 85-441-1765, New Boston Coke Corporation, New Boston, Ohio

    SciTech Connect

    O'Malley, M.A.

    1986-12-01

    In response to a request from the Industrial Commission of Ohio, worker complaints of skin disease at the New Boston Coke Corporation, New Boston, Ohio were investigated. The request was based on seven reports of dermatitis thought to be associated with steam exposure during coke quenching. Quench water had a pH of 8.85 and contained phenol, ammonia, calcium-oxide, and suspended particulates (82% organic compounds); no irritant threshold levels were found for these compounds. Skin tests in rabbits showed a minimal irritant capacity for quench water. Medical records did not reveal the origin of dermatitis. Active skin lesions were characterized as nummular eczema or atopic dermatitis, which were not thought to be of occupational origin. The author concludes that coke-quenching steam does not pose a skin hazard, but certain work activities may aggravate existing skin conditions. Recommendations include elimination of abrasive cleansing agents, use of skin moisturizers after washing, and prompt medical evaluation of skin complaints.

  5. The current status of bracing for patients with adolescent idiopathic scoliosis.

    PubMed

    Stokes, O M; Luk, K D K

    2013-10-01

    Adolescent idiopathic scoliosis affects about 3% of children. Non-operative measures are aimed at altering the natural history to maintain the size of the curve below 40° at skeletal maturity. The application of braces to treat spinal deformity pre-dates the era of evidence-based medicine, and there is a paucity of irrefutable prospective evidence in the literature to support their use and their effectiveness has been questioned. This review considers this evidence. The weight of the evidence is in favour of bracing over observation. The most recent literature has moved away from addressing this question, and instead focuses on developments in the design of braces and ways to improve compliance.

  6. Optimization design of vibration characteristics of ship composite brace with rigid vibration isolation mass

    NASA Astrophysics Data System (ADS)

    Wang, Qiangyong; Yao, Xiongliang; Yu, Danzhu; Pang, Fuzhen

    2011-06-01

    In considering the theory of structural dynamic optimization design, a design method of the structural style of ship composite brace with rigid vibration isolation mass was studied. Two kinds of structural dynamic optimization formulations minimizing the vibration acceleration of the non-pressure hull on the restraining condition of the gross weight of the ship cabin were established: 1) dynamic optimization of the sectional dimensions of the rigid vibration isolation mass in the composite brace; 2) dynamic optimization of the arranging position of the rigid vibration isolation mass. Through the optimization results, sectional dimensions and the arranging position of the rigid vibration isolation mass with better performance in reducing vibration were gained, and some reference was provided for practical engineering designs as well as enrichment of the design method of a novel ship vibration-isolation brace.

  7. [Clinical experiences in the treatment of humeral shaft fractures with the Sarmiento brace].

    PubMed

    Kulenkampff, H A; Rustemeier, M

    1988-08-01

    13 humeral shaft fractures were treated by Sarmiento-brace. Fracture-bracing is a special conservative traumatological management, that permits early remedial gymnastics. Light weight, optimal cosmetic results and quickly rehabilitation of the injured arm are favorable. Cooperation in gymnastics and controls within short times by the doctor are necessary. All our patients of ages under 45 years achieved nearly normal articular function, that increases 95% in comparison to the opposite arm. External rotation and abduction of the shoulder decreased in elder persons. Loss of function could not be avoided completely in critical cases (upper and lower part of the humeral shaft). Side effects were swelling, angulation deficiencies up to 16 degrees and skin lesions. The rate of pseudarthrosis seems very small. In advanced cases of malignomas pathologic fractures were treated by bracing palliatively. Open fractures, vascular damage, nerve palsy, fractures that cannot be controlled by non operative means and multiple injured patients should be treated by operation. PMID:3176188

  8. Modal parameters of two incomplete and complete guitars differing in the bracing pattern of the soundboard.

    PubMed

    Skrodzka, Ewa; Łapa, Andrzej; Linde, Bogumił B J; Rosenfeld, Eike

    2011-10-01

    Similarities and differences in vibrational behavior of two guitars having a symmetric Torres bracing pattern and an asymmetric pattern forming a lattice on a soundboard are investigated by means of the modal analysis technique and laser Doppler vibrometry (LDV) measurements. Instruments are investigated before and after a bridge and strings assembling (i.e., they are incomplete or complete). The bracing pattern and the absence/presence of the bridge and strings have some effect on modal frequencies and mode shapes. The bracing pattern does not affect the sequence of at least first three low frequency mode shapes of incomplete/complete instruments but affects their modal frequencies. Depending on frequency, the bridge behaves either as a rigid or a flexible structure. PMID:21973373

  9. Modal parameters of two incomplete and complete guitars differing in the bracing pattern of the soundboard.

    PubMed

    Skrodzka, Ewa; Łapa, Andrzej; Linde, Bogumił B J; Rosenfeld, Eike

    2011-10-01

    Similarities and differences in vibrational behavior of two guitars having a symmetric Torres bracing pattern and an asymmetric pattern forming a lattice on a soundboard are investigated by means of the modal analysis technique and laser Doppler vibrometry (LDV) measurements. Instruments are investigated before and after a bridge and strings assembling (i.e., they are incomplete or complete). The bracing pattern and the absence/presence of the bridge and strings have some effect on modal frequencies and mode shapes. The bracing pattern does not affect the sequence of at least first three low frequency mode shapes of incomplete/complete instruments but affects their modal frequencies. Depending on frequency, the bridge behaves either as a rigid or a flexible structure.

  10. Influence of patellofemoral bracing on pain, knee extensor torque, and gait function in females with patellofemoral pain.

    PubMed

    Powers, Christopher M; Doubleday, Kathryn L; Escudero, Carina

    2008-01-01

    Our purpose was to evaluate the effects of a patellofemoral brace on pain response, knee extensor torque production, and gait function in females with patellofemoral pain (PFP). Sixteen females between the ages of 14 and 46 with diagnosis of PFP participated. Knee extensor torque was measured by using a LIDO isokinetic dynamometer. Pain levels were documented by using the Visual Analog Pain Scale. Stride characteristics during the conditions of free walk, fast walk, ascend stairs, descend stairs, ascend ramp, and descend ramp were obtained with a stride analyzer unit. EMG activity of the vasti musculature was recorded by using indwelling, bipolar, wire electrodes. Knee joint motion was assessed by using a VICON motion analysis system. All testing was performed with and without the Bauerfeind Genutrain P3 patellofemoral brace. There were no significant differences in torque production, pain levels, and stride characteristics between braced and non-braced trials. In addition, there were no significant differences in mean vasti EMG between braced and non-braced trials. When averaged across all conditions, a small but statistically significant increase in knee flexion was found during the braced trials. Although the current study did not find significant improvements in the clinical measures evaluated, 8 of the 16 subjects did experience a decrease in knee pain. This finding suggests that certain patients with PFP may respond favorably to bracing, and criteria must be established to determine which patients would best benefit from such an intervention.

  11. Hemorrhagic stroke, cerebral amyloid angiopathy, Down syndrome and the Boston criteria.

    PubMed

    Jastrzębski, Karol; Kacperska, Magdalena Justyna; Majos, Agata; Grodzka, Magdalena; Głąbiński, Andrzej

    2015-01-01

    A stroke, or a cerebrovascular accident (CVA) is a life-threatening condition which often results in permanent or significant disability in the adult population. Several classifications of CVAs exist, one of them being based on the mechanism of injury of brain tissue: ischemic (85-90%) and hemorrhagic (10-15%). In a hemorrhagic stroke an intercranial bleeding occurs, leading to the formation of a focal hematoma typically located in the basal ganglia of the brain (approx. 45% of cases). A common yet underestimated cause of intracerebral hemorrhage is cerebral small vessel disease with microhemorrhages, including the cerebral amyloid angiopathy (CAA). This condition is associated with the deposition of amyloid-beta in arterial walls (in soft meninges, subcortical areas and the cerebral cortex). Research has shown that causes of hemorrhagic changes in the brain include genetic disorders, such as Down syndrome. The association is caused by the so-called 'gene dosage effect', as the gene for the precursor protein for amyloid-beta is located in chromosome 21. We wish to present the case of a 60 year old patient with Down syndrome who suffered a hemorrhagic stroke without antecedent hypertension. Based on the history taken, diagnostic imaging and the source literature, a diagnosis of cerebral amyloid angiopathy as the source of the bleeding was made (however it must be noted that without a full post-mortem examination, the Boston criteria allow only for a 'probable cerebral amyloid angiopathy' diagnosis to be made). The authors hereby also report the need to modify the Boston criteria for cerebral amyloid angiopathy.

  12. Bracing the trunk and neck in young adults leads to a more aged-like gait.

    PubMed

    Russell, Daniel M; Kelleran, Kyle J; Morrison, Steven

    2016-09-01

    Older individuals typically walk at slower speeds, with shorter step lengths, greater step widths and spend a larger proportion of the gait cycle in double stance. Changes in neck and trunk mobility may underlie some of the changes in walking seen with increasing age. Consequently, this study was designed to assess whether externally increasing trunk/neck stiffness in young adults leads to similar changes in gait pattern observed with aging. Twelve young adults (20-29 years), sixteen old adults (60-69 years) and fifteen older adults (70-79 years) walked across a 20' pressure sensitive GAITRite© instrumented walkway at their preferred speed. The young adults also walked under three bracing conditions: (1) Neck braced, (2) Trunk braced, and (3) Neck and Trunk braced. The results revealed that the old and older age groups walked significantly slower, with a shorter step length and with a narrower base of support (p's<0.05) compared to the young adults. In young adults, combined neck and trunk bracing led to reduced walking speed, shorter step length, wider base of support and a larger proportion of the gait cycle spent in double stance (p's<0.05). The walking speed and step length of older adults remained less than fully braced young adults (p's<0.05). Overall these results indicate that artificially stiffening the trunk and neck of young individuals leads to systematic gait changes similar to aging. Consequently, age-related changes in mobility of the neck and torso may in part contribute to the decrements in walking seen for older adults.

  13. 76 FR 3654 - Boston Harbor Islands National Recreation Area Advisory Council; Notice of Public Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-20

    ... further information concerning the meeting may contact Superintendent Bruce Jacobson at Boston Harbor... FURTHER INFORMATION CONTACT: Superintendent Bruce Jacobson, (617) 223-8667. SUPPLEMENTARY INFORMATION:...

  14. Design and control of multifunctional magnetorheological actuators for assistive knee braces

    NASA Astrophysics Data System (ADS)

    Guo, H. T.; Liao, W. H.

    2010-04-01

    This paper is aimed at developing a novel multifunctional actuator utilizing magnetorheological (MR) fluids. As a key component for assistive knee braces, the actuator can work with multiple functions as motor, clutch and brake in order to meet the requirement of normal human walking. In this paper, design considerations including configurations, materials selection, mechanical and electromagnetic designs are illustrated. Prototype of the multifunctional actuator is fabricated, and each of its functions is investigated. Control strategies for mimicking normal human walking using the multifunctional actuator are illustrated. Adaptive control algorithm is adopted. Experiments on torque and speed tracking are conducted. The results show that the developed multifunctional actuator is promising for assistive knee braces.

  15. Application Of Steel Bar Bracings In Renovation And Modernization Of Historic Buildings

    NASA Astrophysics Data System (ADS)

    Kuchta, Krzysztof

    2015-12-01

    The use of steel bracings is possible in all four stages of engineering activities in the renovation and modernization of historic buildings, i. e.: protecting, repairing, strengthening and rebuilding. Steel bracings are auxiliary structural systems, which, due to their relatively small cross-section dimensions and low weight, provide an efficient way to achieve the required resistance and stability of the original historic building structural systems. The steel structure in most cases is the tissue that differs in style and material of genuine tissue which is present in a renewed historic building, but is also often a rational solution acceptable to the conservation and structural point of view.

  16. Thermodynamic and kinetic characteristics of variations in shapes of ridges formed on {l_brace}100{r_brace} lithium fluoride surfaces

    SciTech Connect

    Bullard, J.W.; Glaeser, A.M.; Searcy, A.W.

    1991-12-01

    channels with widths in the range form 5 {mu}m were formed in {l_brace}100{r_brace} surfaces of LiF single crystals by a photolithographic technique. Specimens annealed at or above 0.90 T{mu}m, where T{mu} is the melting point, and then quenched showed the channels and the ridges between them develop rounded profiles. Evolution of these profiles was evaluated for the various channel widths and for interchannel ridge spacings of 5 to 100 {mu}m in terms of: (a) an accepted theoretical model for a surface diffusion controlled process, and (b) a model which assumes that shape changes depend only on the relative energies of attachment of atoms in surface sites with various surface curvatures. Either model is consistent with the experimental observations to within the reproducibility in measurements.

  17. "Brace Technology" Thematic Series - The Lyon approach to the conservative treatment of scoliosis

    PubMed Central

    2011-01-01

    The Lyon Brace, or adjustable multi-shell brace, has been used for more than 60 years. The use and function of the Lyon Brace includes: - The utilization of one or two corrective plaster casts, which enables a true lengthening of the concave ligaments. - An oriented CAD-CAM moulding in 3D auto correction after the removal of the plaster cast. - A blueprint adapted to Lenke's classification. - A specific physiotherapy program. Background Pierre Stagnara created the Lyon Brace in 1947. The brace has the following characteristics: - It adjusts to allow for a child's growth of up to seven centimetres and for an increase in weight of up to seven kilograms. - It is 'active' in that the rigidity of the PMM (polymetacrylate of methyl) structure stimulates the user to auto-correct. The active axial auto-correction decreases the pressures of the brace on the trunk. - It is decompressive in that the effect of extension between the two pelvic and scapular girdles decreases the pressure on the intervertebral disc allowing for more effective pushes in the other planes. - It is symmetrical making it both more aesthetically pleasing and easier to build. - It is stable at both shoulders and pelvic girdle, facilitating the intermediate 3D corrections. - It is transparent. The pressure of the shells on the skin can be directly controlled so "pads" are usually not necessary. Brace description Two metal bars are fixed vertically, one anterior the other posterior and all shells are attached from the bottom to the top in this order: - Two pelvic shells ensure an optimal stability of the brace. - One lumbar shell T12-L4, which can be either independent or extending, at the abdominal chondrocostal level. - One thoracic shell at the level of the thoracic convexity. - One opposite thoracic shell used as a counter push. - One shoulder balance shell on the side of the thoracic convexity. Long term follow up results This is a retrospective study of 1,338 completed treatments checked a minimum

  18. Completing the Results of the 2013 Boston Marathon

    PubMed Central

    Hammerling, Dorit; Cefalu, Matthew; Cisewski, Jessi; Dominici, Francesca; Parmigiani, Giovanni; Paulson, Charles; Smith, Richard L.

    2014-01-01

    The 2013 Boston marathon was disrupted by two bombs placed near the finish line. The bombs resulted in three deaths and several hundred injuries. Of lesser concern, in the immediate aftermath, was the fact that nearly 6,000 runners failed to finish the race. We were approached by the marathon's organizers, the Boston Athletic Association (BAA), and asked to recommend a procedure for projecting finish times for the runners who could not complete the race. With assistance from the BAA, we created a dataset consisting of all the runners in the 2013 race who reached the halfway point but failed to finish, as well as all runners from the 2010 and 2011 Boston marathons. The data consist of split times from each of the 5 km sections of the course, as well as the final 2.2 km (from 40 km to the finish). The statistical objective is to predict the missing split times for the runners who failed to finish in 2013. We set this problem in the context of the matrix completion problem, examples of which include imputing missing data in DNA microarray experiments, and the Netflix prize problem. We propose five prediction methods and create a validation dataset to measure their performance by mean squared error and other measures. The best method used local regression based on a K-nearest-neighbors algorithm (KNN method), though several other methods produced results of similar quality. We show how the results were used to create projected times for the 2013 runners and discuss potential for future application of the same methodology. We present the whole project as an example of reproducible research, in that we are able to make the full data and all the algorithms we have used publicly available, which may facilitate future research extending the methods or proposing completely different approaches. PMID:24727904

  19. Completing the results of the 2013 Boston marathon.

    PubMed

    Hammerling, Dorit; Cefalu, Matthew; Cisewski, Jessi; Dominici, Francesca; Parmigiani, Giovanni; Paulson, Charles; Smith, Richard L

    2014-01-01

    The 2013 Boston marathon was disrupted by two bombs placed near the finish line. The bombs resulted in three deaths and several hundred injuries. Of lesser concern, in the immediate aftermath, was the fact that nearly 6,000 runners failed to finish the race. We were approached by the marathon's organizers, the Boston Athletic Association (BAA), and asked to recommend a procedure for projecting finish times for the runners who could not complete the race. With assistance from the BAA, we created a dataset consisting of all the runners in the 2013 race who reached the halfway point but failed to finish, as well as all runners from the 2010 and 2011 Boston marathons. The data consist of split times from each of the 5 km sections of the course, as well as the final 2.2 km (from 40 km to the finish). The statistical objective is to predict the missing split times for the runners who failed to finish in 2013. We set this problem in the context of the matrix completion problem, examples of which include imputing missing data in DNA microarray experiments, and the Netflix prize problem. We propose five prediction methods and create a validation dataset to measure their performance by mean squared error and other measures. The best method used local regression based on a K-nearest-neighbors algorithm (KNN method), though several other methods produced results of similar quality. We show how the results were used to create projected times for the 2013 runners and discuss potential for future application of the same methodology. We present the whole project as an example of reproducible research, in that we are able to make the full data and all the algorithms we have used publicly available, which may facilitate future research extending the methods or proposing completely different approaches.

  20. Boston Children's Hospital approach to brachial plexus birth palsy.

    PubMed

    Vuillermin, Carley; Bauer, Andrea S

    2016-07-01

    The treatment of infants with brachial plexus birth palsy (BPBP) continues to be a focus at Boston Children's Hospital. Over the last 15 years, there have been many developments in the treatment of infants with BPBP. Some of the greatest changes have emerged through technical advances such as the advent of distal nerve transfers to allow targeted reinnervation as well as through research to understand the pathoanatomical changes that lead to glenohumeral dysplasia and how this dysplasia can be remodeled. This review will discuss our current practice of evaluation of the infant with BPBP, techniques for microsurgical reconstruction, and prevention and treatment of secondary glenohumeral dysplasia. PMID:27137763

  1. Predicting the physical effects of relocating Boston's sewage outfall

    USGS Publications Warehouse

    Signell, R.P.; Jenter, H.L.; Blumberg, A.F.

    2000-01-01

    Boston is scheduled to cease discharge of sewage effluent in Boston Harbor in Spring 2000 and begin discharge at a site 14 km offshore in Massachusetts Bay in a water depth of about 30 m. The effects of this outfall relocation on effluent dilution, salinity and circulation are predicted with a three-dimensional hydrodynamic model. The simulations predict that the new bay outfall will greatly decrease effluent concentrations in Boston Harbor (relative to the harbour outfall) and will not significantly change mean effluent concentrations over most of Massachusetts Bay. With the harbour outfall, previous observations and these simulations show that effluent concentrations exceed 0??5% throughout the harbour, with a harbour wide average of 1-2%. With the bay outfall, effluent concentrations exceed 0??5% only within a few km of the new outfall, and harbour concentrations drop to 0??1-0??2%, a 10-fold reduction. During unstratified winter conditions, the local increase in effluent concentration at the bay outfall site is predicted to exist throughout the water column. During stratified summer conditions, however, effluent released at the sea bed rises and is trapped beneath the pycnocline. The local increase in effluent concentration is limited to the lower layer, and as a result, surface layer effluent concentrations in the vicinity of the new outfall site are predicted to decrease (relative to the harbour outfall) during the summer. Slight changes are predicted for the salinity and circulation fields. Removing the fresh water associated with the effluent discharge in Boston Harbor is predicted to increase the mean salinity of the harbour by 0??5 and decrease the mean salinity by 0??10-0??15 within 2-3 km of the outfall. Relative to the existing mean flow, the buoyant discharge at the new outfall is predicted to generate density-driven mean currents of 2-4 cm s-1 that spiral out in a clockwise motion at the surface during winter and at the pycnocline (15-20 m depth

  2. Implementing the cities readiness initiative: lessons learned from Boston.

    PubMed

    Koh, Howard K; Elqura, Loris J; Judge, Christine M; Jacob, John P; Williams, Amy E; Crowther, M Suzanne; Serino, Richard A; Auerbach, John M

    2008-03-01

    The federally funded Cities Readiness Initiative (CRI) requires seamless federal, state, and local public health coordination to provide antibiotics to an entire city population within 48 hours of an aerosolized release of anthrax. We document practical lessons learned from the development and implementation of the Boston CRI plan. Key themes center on heightened emphasis on security, a new mass protection model of dispensing, neighborhood-centric clinic site selection, online training of Medical Reserve Corps volunteers, and the testing of operations through drills and exercises. Sharing such lessons can build national preparedness. PMID:18388657

  3. Chinese Adaptation of the Bad Sobernheim Stress Questionnaire for Patients With Adolescent Idiopathic Scoliosis Under Brace Treatment

    PubMed Central

    Xu, Ximing; Wang, Fei; Yang, Mingyuan; Huang, Qikai; Chang, Yifan; Wei, Xianzhao; Bai, Yushu; Li, Ming

    2015-01-01

    Abstract Bad Sobernheim Stress Questionnaire (BSSQ)-Deformity and BSSQ-Brace are the most widely used instruments for evaluating stress levels in adolescent idiopathic scoliosis (AIS) patients under brace treatment, and good reliability and validity have been demonstrated across different cultures. Great stress has been found among many adolescents, becoming a major concern for professionals. However, no previous research has addressed the cultural adaptations and psychometric testing of BSSQ-Deformity and BSSQ-Brace in China or the stress levels in AIS patients. The purposes of our study were to evaluate the cross-cultural adaptation and validation of the BSSQ-Deformity and BSSQ-Brace and to investigate stress levels in Chinese (AIS) patients under brace treatment. The original (German) versions of BSSQ-Deformity and BSSQ-Brace were cross-culturally translated according to international guidelines. Psychometric properties such as reliability and construct validity were tested. Eighty-six AIS patients were included in our study, and 50 patients paid a second visit 3 to 7 days later to test reproducibility. Cronbach α and the intraclass coefficient were determined to assess internal consistency and reproducibility. Scoliosis Research Society patient questionnaire-22 (SRS-22) was applied to evaluate construct validity. The mean BSSQ-Deformity and BSSQ-Brace scores were 15.3 and 13.4 points, respectively. Severe stress was observed in 12% of patients due to brace treatment. Item analysis demonstrated that each item was scored under a normal distribution with no redundancy. Psychometric analysis revealed excellent internal consistency (Cronbach α = 0.85 and 0.80, respectively) and reproducibility (intraclass correlation coefficient = 0.85 and 0.90, respectively) for BSSQ-Deformity and BSSQ-Brace. The correlation coefficients of BSSQ-Deformity, BSSQ-Brace and SRS-22 were 0.48 and 0.63, respectively. In conclusion, BSSQ-Deformity and BSSQ-Brace have been

  4. Displacement-Based Seismic Design Procedure for Framed Buildings with Dissipative Braces Part II: Numerical Results

    SciTech Connect

    Mazza, Fabio; Vulcano, Alfonso

    2008-07-08

    For a widespread application of dissipative braces to protect framed buildings against seismic loads, practical and reliable design procedures are needed. In this paper a design procedure based on the Direct Displacement-Based Design approach is adopted, assuming the elastic lateral storey-stiffness of the damped braces proportional to that of the unbraced frame. To check the effectiveness of the design procedure, presented in an associate paper, a six-storey reinforced concrete plane frame, representative of a medium-rise symmetric framed building, is considered as primary test structure; this structure, designed in a medium-risk region, is supposed to be retrofitted as in a high-risk region, by insertion of diagonal braces equipped with hysteretic dampers. A numerical investigation is carried out to study the nonlinear static and dynamic responses of the primary and the damped braced test structures, using step-by-step procedures described in the associate paper mentioned above; the behaviour of frame members and hysteretic dampers is idealized by bilinear models. Real and artificial accelerograms, matching EC8 response spectrum for a medium soil class, are considered for dynamic analyses.

  5. 50 CFR Figure 15 to Part 223 - Weedless TED Brace Bar Description

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 50 Wildlife and Fisheries 10 2012-10-01 2012-10-01 false Weedless TED Brace Bar Description 15 Figure 15 to Part 223 Wildlife and Fisheries NATIONAL MARINE FISHERIES SERVICE, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE MARINE MAMMALS THREATENED MARINE AND ANADROMOUS SPECIES...

  6. 50 CFR Figure 15 to Part 223 - Weedless TED Brace Bar Description

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 50 Wildlife and Fisheries 9 2011-10-01 2011-10-01 false Weedless TED Brace Bar Description 15 Figure 15 to Part 223 Wildlife and Fisheries NATIONAL MARINE FISHERIES SERVICE, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE MARINE MAMMALS THREATENED MARINE AND ANADROMOUS SPECIES...

  7. Use of a rugby helmet brace for postoperative treatment of muscular torticollis.

    PubMed

    Yamada, Naotake; Kim, Wook-Cheol; Hosokawa, Motoo; Yoshida, Takashi; Mouri, Hisashi; Oka, Yoshinobu; Kotoura, Yoshihiro; Nakase, Masashi; Nishida, Atsushi; Kusakabe, Torao; Kubo, Toshikazu

    2011-10-05

    Prior to 1992, our postoperative management for congenital muscular torticollis consisted of either plaster cast immobilization or no immobilization, depending on the patient's age and the degree of contracture. However, some patients required further surgery and developed complications. In 1992, we produced rugby helmet braces for postoperative management. The purpose of this study was to compare the clinical results of the previous postoperative management with the results achieved using rugby helmet braces. Twenty-five children aged younger than 6 years underwent caudal partial resection of the sternocleidomastoid muscle. Twelve children aged 6 years and older underwent cranial tenotomy. These 37 patients were divided into 2 groups: no immobilization or plaster immobilization (group A; n=19) and rugby helmet braces (group B; n=18). Canale's method was used for evaluation of clinical results. In group A, the results were good in 12 patients, fair in 4, and poor in 3, whereas all 18 patients in group B had good results. Two patients in group A required further surgery, and complications were observed in 5 patients. In group B, alopecia areata was observed in 1 patient.The rugby helmet brace is easy to put on and remove, providing good retention and allowing for physiotherapy. It provides a useful method of postoperative management for congenital muscular torticollis.

  8. The effect of knee braces on lateral impact loading of the knee.

    PubMed

    Baker, B E; VanHanswyk, E; Bogosian, S P; Werner, F W; Murphy, D

    1989-01-01

    Disruption of the medial supporting structures of the knee occurs commonly in contact sports such as American football and lacrosse. A limited number of clinical and laboratory studies currently document the effectiveness of bracing. The purpose of this project was to determine if commercially available bracing could be shown to produce objective evidence of medial stabilization of the knee. Our model involves the use of a cadaver lower extremity with a fixed foot and suspended femur with a free knee and a lateral impact load applied simulating a clipping injury. Force transducers were placed on the ACL and medial collateral ligament (MCL) and an electrogoniometer was attached to the extremity. The prophylactic braces studied had a limited capacity to protect the MCL from direct lateral stress with the knee in full extension. In flexion or with a change in direction of the load, the protective effect is greatly reduced. The functional braces had a capacity to limit abduction and rotational stresses on the MCL in flexion and extension. PMID:2757126

  9. Displacement-Based Seismic Design Procedure for Framed Buildings with Dissipative Braces Part II: Numerical Results

    NASA Astrophysics Data System (ADS)

    Mazza, Fabio; Vulcano, Alfonso

    2008-07-01

    For a widespread application of dissipative braces to protect framed buildings against seismic loads, practical and reliable design procedures are needed. In this paper a design procedure based on the Direct Displacement-Based Design approach is adopted, assuming the elastic lateral storey-stiffness of the damped braces proportional to that of the unbraced frame. To check the effectiveness of the design procedure, presented in an associate paper, a six-storey reinforced concrete plane frame, representative of a medium-rise symmetric framed building, is considered as primary test structure; this structure, designed in a medium-risk region, is supposed to be retrofitted as in a high-risk region, by insertion of diagonal braces equipped with hysteretic dampers. A numerical investigation is carried out to study the nonlinear static and dynamic responses of the primary and the damped braced test structures, using step-by-step procedures described in the associate paper mentioned above; the behaviour of frame members and hysteretic dampers is idealized by bilinear models. Real and artificial accelerograms, matching EC8 response spectrum for a medium soil class, are considered for dynamic analyses.

  10. Multidisciplinary Design Investigation of Truss-Braced Wing Aircraft. Phase 4

    NASA Technical Reports Server (NTRS)

    Grossman, B.; Kapania, R. K.; Mason, W. H.; Schetz, J. A.

    2000-01-01

    The subject grant was in effect from 7/l/99 to 10/31/99. The objective of this grant was to complete a strut-braced wing study which began, which was in effect from 6/27/96 until 9/15/99. While the initial grant was on-going, we were also under subcontract to Lockheed-Martin, Aerospace Systems Division, Marietta, GA to do additional studies related to the strut-braced wing grant "A Structural and Aerodynamic Investigation of a Strut-Braced Wing Transonic Aircraft Concept", 4/l/98-11/15/98. Lockheed-Martin was under contract to NASA Langley. Finally the research under this grant has led to a joint proposal from NASA Langley, Locheed-Martin, Virginia Tech and NASA Dryden to develop a transonic strut-braced wing demonstration aircraft in response to Flight Research for Revolutionary Aeronautical Concepts (REVCON). This final report summarizes the research done, augmented by the additional concommitant research projects mentioned above.

  11. 49 CFR 230.25 - Maximum allowable stress on stays and braces.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... round, rectangular, or gusset braces shall be 9,000 psi. Strength of Materials ... RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS... maximum allowable stress per square inch of net cross sectional area on fire box and combustion...

  12. 49 CFR 230.25 - Maximum allowable stress on stays and braces.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... round, rectangular, or gusset braces shall be 9,000 psi. Strength of Materials ... RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS... maximum allowable stress per square inch of net cross sectional area on fire box and combustion...

  13. 49 CFR 230.25 - Maximum allowable stress on stays and braces.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... round, rectangular, or gusset braces shall be 9,000 psi. Strength of Materials ... RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS... maximum allowable stress per square inch of net cross sectional area on fire box and combustion...

  14. 49 CFR 230.25 - Maximum allowable stress on stays and braces.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... round, rectangular, or gusset braces shall be 9,000 psi. Strength of Materials ... RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS... maximum allowable stress per square inch of net cross sectional area on fire box and combustion...

  15. 49 CFR 230.25 - Maximum allowable stress on stays and braces.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... round, rectangular, or gusset braces shall be 9,000 psi. Strength of Materials ... RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS... maximum allowable stress per square inch of net cross sectional area on fire box and combustion...

  16. 40 CFR 81.19 - Metropolitan Boston Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.19 Metropolitan Boston Intrastate Air Quality Control Region. The Metropolitan Boston Intrastate Air Quality Control Region (Massachusetts) consists of the territorial...

  17. 40 CFR 81.19 - Metropolitan Boston Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.19 Metropolitan Boston Intrastate Air Quality Control Region. The Metropolitan Boston Intrastate Air Quality Control Region (Massachusetts) consists of the territorial...

  18. 40 CFR 81.19 - Metropolitan Boston Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.19 Metropolitan Boston Intrastate Air Quality Control Region. The Metropolitan Boston Intrastate Air Quality Control Region (Massachusetts) consists of the territorial...

  19. 40 CFR 81.19 - Metropolitan Boston Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.19 Metropolitan Boston Intrastate Air Quality Control Region. The Metropolitan Boston Intrastate Air Quality Control Region (Massachusetts) consists of the territorial...

  20. 40 CFR 81.19 - Metropolitan Boston Intrastate Air Quality Control Region.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.19 Metropolitan Boston Intrastate Air Quality Control Region. The Metropolitan Boston Intrastate Air Quality Control Region (Massachusetts) consists of the territorial...

  1. Crisis Intervention Project, Boston Public Schools, December 1, 1972-May 1, 1973. Evaluation.

    ERIC Educational Resources Information Center

    Marion, David J.

    The Crisis Prevention-Intervention Project (CPI) of the Boston Public Schools is described in two parts: a six-month evaluation report and an interim report by the project director. The goals of this pilot project for the five Boston schools (three public, two parochial) were: (1) to develop an operational program of crisis intervention and…

  2. Collective Transformations, Collective Theories: What Adult Educators Can Learn From the Boston Women's Health Book Collective.

    ERIC Educational Resources Information Center

    Birden, Susan

    The experiences of the 12-woman Boston Women's Health Book Collective was examined in a case study that focused on the collective's activities from its formation in 1969 through its publication of the book "Our Bodies, Ourselves" in 1973 and its opening of a women's clinic in downtown Boston that is still in operation today. The case study draws…

  3. How Are Boston Pilot School Students Faring? Student Demographics, Engagement, and Performance, 1997-2002.

    ERIC Educational Resources Information Center

    Feldman, Jay; Tung, Rosann; Ouimette, Monique

    This report examines the efficacy of the Boston Pilot Schools, an innovative model of urban schools created to promote innovation and increased choice options within the Boston school district. The report uses school and district level data to examine student demographics, achievement, and engagement at the 11 Pilot Schools that were in operation…

  4. From Vision to Action: Solving Problems through Inquiry at Boston Day and Evening Academy

    ERIC Educational Resources Information Center

    Kunst, Andrea

    2009-01-01

    On a mid-week day in mid-December 2008, Boston Day and Evening Academy's room 209, usually used for board meetings, student assessments, awards dinners, and other occasions requiring an intimate atmosphere, smelled like Chinese food. These second-trimester students at Boston Day and Evening Academy (BDEA) were having a reunion after just a few…

  5. Boston Shifts Learning into High Gear: Certificate Program Accelerates Student Learning by Building Teacher Capacity

    ERIC Educational Resources Information Center

    Berg, Jill Harrison; Miller, Lesley Ryan; Souvanna, Phomdaen

    2011-01-01

    Throughout the past two decades, Boston Public Schools has seen strong, steady improvement, recently demonstrated through student gains on NAEP's Trial Urban District Assessment in math and recognized through the award of the 2006 Broad Prize for Urban Education. Teacher leaders have played an important role in Boston's improvement. As team…

  6. 75 FR 34929 - Safety Zones: Neptune Deep Water Port, Atlantic Ocean, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-21

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zones: Neptune Deep Water Port, Atlantic Ocean... Port located in the Atlantic Ocean off of Boston, Massachusetts. The purpose of these temporary safety... Deep Water Port, Atlantic Ocean, Boston, MA; Final Rule (USCG-2009-0589), to protect vessels from...

  7. A Decade of Urban School Reform: Persistence and Progress in the Boston Public Schools

    ERIC Educational Resources Information Center

    Reville, S. Paul, Ed.

    2007-01-01

    In the last decade, the Boston Public Schools has undergone critical reforms that have been of intense interest to school leaders and policymakers throughout the country. Under the leadership of superintendent Thomas Payzant, the Boston schools implemented extensive reform strategies that yielded notable results. Fittingly, at the end of Payzant's…

  8. 33 CFR 167.77 - In the approach to Boston, MA: Traffic separation scheme.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false In the approach to Boston, MA: Traffic separation scheme. 167.77 Section 167.77 Navigation and Navigable Waters COAST GUARD, DEPARTMENT... Description of Traffic Separation Schemes and Precautionary Areas § 167.77 In the approach to Boston,...

  9. Networking for the Turnaround of a School District: The Boston University--Chelsea Partnership

    ERIC Educational Resources Information Center

    Paletta, Angelo; Candal, Cara Stillings; Vidoni, Daniele

    2009-01-01

    The 20-year partnership between Boston University and the school district of Chelsea, Massachusetts, came to an official end in June 2008. Although the partnership is by many measures successful, the continued success of the district will depend on how well Boston University is able to share with stakeholders management techniques and the…

  10. Prophetic Naming as Informal Adult Education: Decolonizing the Imagination with Boston's New Majority

    ERIC Educational Resources Information Center

    Klimczak, Susan Ann

    2009-01-01

    This is an educational ethnography of collective informal learning and education in social movements based on five years of participant observation among Boston's New Majority from 2003-2009. The New Majority is a "movement of movements" and an organization of People of Color in Boston that seek to address an egregious obstacle to democracy:…

  11. Boston's Rapid Expansion of Public School-Based Preschool: Promoting Quality, Lessons Learned

    ERIC Educational Resources Information Center

    Sachs, Jason; Weiland, Christina

    2010-01-01

    In his 2005 State of the City address, Boston Mayor Thomas Menino directed the Boston Public Schools (BPS) to "provide all 4-year-olds in the city with full-day school within five years." There were several reasons for this commitment, including an emerging consensus that early childhood education makes a positive difference in long-term outcomes…

  12. 77 FR 13147 - Boston Harbor Islands National Recreation Area Advisory Council; Notice of Public Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-05

    ... may contact Superintendent Bruce Jacobson at Boston Harbor Islands, 408 Atlantic Avenue, Suite 228... Jacobson, (617) 223-8667. SUPPLEMENTARY INFORMATION: The Advisory Council was appointed by the Director of... management plan and the operations of the Boston Harbor Islands NRA. Dated: February 21, 2012. Bruce...

  13. 77 FR 70183 - Notice of Meeting for Boston Harbor Islands National Recreation Area Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-23

    ... Council, Bruce Jacobson, Superintendent, by mail at 408 Atlantic Avenue, Suite 228, Boston, MA 02110, or by email at Bruce_Jacobson@nps.gov . Before including your address, phone number, email address, or... House, 11 North Square, Boston, MA 02113. FOR FURTHER INFORMATION CONTACT: Bruce...

  14. The Study of Project Exodus: A School Racial Integration Project in Boston, Massachusetts. Final Report.

    ERIC Educational Resources Information Center

    Teele, James E.

    This voluntary school integration project uses the open enrollment plan of the Boston School Department in transporting Negro children from predominantly Negro schools in the black district to more racially balanced schools in other parts of Boston. It has involved private financing, intra-city bussing, and the initiative and participation of…

  15. Learning from Consistently High Performing and Improving Schools for English Language Learners in Boston Public Schools

    ERIC Educational Resources Information Center

    Tung, Rosann; Diez, Virginia; Gagnon, Laurie; Uriarte, Miren; Stazesky, Pamela

    2011-01-01

    This study is part of a collaborative project entitled "Identifying Success in Schools and Programs for English Language Learners in Boston Public Schools". The companion to this report, entitled "Improving Educational Outcomes of English Language Learners in Schools and Programs in Boston Public Schools", provides a comprehensive analysis of…

  16. "The Crux and the Magic": The Political History of Boston Magnet Schools, 1968-1989

    ERIC Educational Resources Information Center

    Gelber, Scott

    2008-01-01

    This study analyzes public perceptions of Boston's magnet school program. Typically evaluated in terms of their impact on racial integration, magnet schools also were designed to improve the tarnished image of the Boston school system. While promoting voluntary integration at a handful of schools, the magnet program struggled to change the…

  17. [Decision of the Massachusetts Labor Relations Commission in the Matter of Boston School Committee and Boston Teachers Union, Local 66, American Federation of Teachers, AFL-CIO; Boston Association of School Administrators and Supervisors; and Boston Public School Buildings Custodians Association. Case Nos. MUP-2503, MUP-2528, and MUP-2541.

    ERIC Educational Resources Information Center

    Massachusetts State Labor Relations Commission, Boston.

    In May 1976, the Boston School Committee ordered "that all persons hired or promoted by the School Department" after July 1, 1976 must become residents of Boston "within three months of such hiring or promotion. . . ." Failure to comply was deemed "a voluntary termination of employment," except that promoted employees could "return to their former…

  18. Boston Public Schools: Family Guide to the Pilot, Horace Mann, and Innovation Schools, 2011-2012

    ERIC Educational Resources Information Center

    Center for Collaborative Education, 2012

    2012-01-01

    A Pilot School is a public school in the Boston Public School district with teachers who are members of the Boston Teachers Union. A Horace Mann Charter School is a public school under a Massachusetts state charter that operates within a regular school district and serves the students and families enrolled in that district. An Innovation School, a…

  19. After a 10-Year Run, Boston "Pilot" Schools Sore Point for Union

    ERIC Educational Resources Information Center

    Hendrie, Caroline

    2005-01-01

    When teachers at Thomas Gardner Elementary School voted in fall 2003 to join Boston's network of "pilot" schools, they had no inkling of the political firestorm that lay ahead. A few months after they moved to become part of the city's nationally watched experiment with small, autonomous public schools, the president of the Boston Teachers Union…

  20. Across the City and across Grades: Investigating Energy Flow in the Boston Harbor Ecosystem

    ERIC Educational Resources Information Center

    Hashimoto-Martell, Erin; Clinchot, Michael; Daniels, Haven; Bennie, Fiona

    2012-01-01

    In the project described in this article, urban students from across grade levels, schools, and abilities were brought together by four science teachers to better understand an ecosystem of their local environment, the Boston Harbor. This project comprises two main field experiences to the Boston Harbor: the first one to a nearby beach, and the…

  1. The Colonial Worker in Boston, 1775. Regional Report Number 75-2.

    ERIC Educational Resources Information Center

    Erlanger, Steven J.

    This monograph focuses on the working class in Boston during 1775, the period just before the American Revolution. Seven sections describe Boston's geographical and political background; working conditions, employment, and controls; income by industry and occupation; standards of living; social life; mobility and the situation of minorities; and…

  2. Cohort profile: the Boston Area Community Health (BACH) survey.

    PubMed

    Piccolo, Rebecca S; Araujo, Andre B; Pearce, Neil; McKinlay, John B

    2014-02-01

    The Boston Area Community Health (BACH) Survey is a community-based, random sample, epidemiologic cohort of n = 5502 Boston (MA) residents. The baseline BACH Survey (2002-05) was designed to explore the mechanisms conferring increased health risks on minority populations with a particular focus on urologic signs/symptoms and type 2 diabetes. To this end, the cohort was designed to include adequate numbers of US racial/ethnic minorities (Black, Hispanic, White), both men and women, across a broad age of distribution. Follow-up surveys were conducted ∼5 (BACH II, 2008) and 7 (BACH III, 2010) years later, which allows for both within- and between-person comparisons over time. The BACH Survey's measures were designed to cover the following seven broad categories: socio-demographics, health care access/utilization, lifestyles, psychosocial factors, health status, physical measures and biochemical parameters. The breadth of measures has allowed BACH researchers to identify disparities and quantify contributions to social disparities in a number of health conditions including urologic conditions (e.g. nocturia, lower urinary tract symptoms, prostatitis), type 2 diabetes, obesity, bone mineral content and density, and physical function. BACH I data are available through the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Central Repositories (www.niddkrepository.org). Further inquiries can be made through the New England Research Institutes Inc. website (www.neriscience.com/epidemiology).

  3. Bluff evolution along coastal drumlins: Boston Harbor Islands, Massachusetts

    USGS Publications Warehouse

    Himmelstoss, E.A.; FitzGerald, D.M.; Rosen, P.S.; Allen, J.R.

    2006-01-01

    A series of partially drowned drumlins forms the backbone of the inner islands within Boston Harbor. The shoreline of these rounded glacial deposits is composed of actively retreating bluffs formed by continual wave attack. Comparisons of bluffs reveal variability in their height and lateral extent, as well as in the dominant mechanism causing their retreat. Two processes are responsible for bluff erosion and yield distinct bluff morphologies: (1) wave attack undercuts the bluff and causes episodic slumping, yielding planar bluff slopes, and (2) subaerial processes such as rainfall create irregular slopes characterized by rills and gullies. We propose a model of drumlin bluff evolution that is based on processes of erosion and physical characteristics such as bluff height, slope morphology, and the orientation of the bluff with respect to the long axis of the drumlin and its topographic crest. The four phases of drumlin bluff evolution consist of (1) initial formation of bluff, with retreat dominated by wave notching and slumping processes; (2) rill and gully development as bluff heights exceed 10 m and slumped sediment at bluff base inhibits wave attack; (3) return of wave notching and slumping as bluff heights decrease; and (4) final development of boulder retreat lag as last remnants of drumlin are eroded by wave action. These phases capture the important physical processes of drumlin evolution in Boston Harbor and could apply to other eroding coastal drumlin deposits.

  4. Boston solar retrofits: studies of solar access and economics

    SciTech Connect

    Shapiro, M.

    1980-11-01

    Studies of solar access and solar retrofit economics are described for residential applications in the City of Boston. The study of solar access was based upon a random sample of 94 buildings; the sample was stratified to ensure a broad geographic representation from the city's various sections. Using available data on the heights and orientations of the sampled structures and surrounding buildings, each building's hourly access to sunlight was computed separately for the roof and south facing walls. These data were then aggregated by broad structural classifications in order to provide general measures of solar access. The second study was a comparative analysis of the economics of several solar heating and hot water systems. An active hot water system, installed using pre-assembled, commercially purchased equipment, was selected as a reference technology. A variety of measures of economic performance were computed for this system, with and without existing tax credits and under various financing arrangements. Next, a number of alternative approaches for solar space and water heating were identified from interviews with individuals and groups involved in solar retrofit projects in the Boston area. The objective was to identify approaches that many of those interviewed believe to be low-cost means of applying solar energy in residential settings. The approaches selected include thermal window covers, wall collectors, bread box water heaters, and sun spaces. Preliminary estimates of the performance of several representative designs were developed and the economics of these designs evaluated.

  5. Environmental benefits of Boston Harbor clean-up projects

    SciTech Connect

    Connor, M.S.; Smith, W.M. )

    1990-01-09

    The Massachusetts Water Resources Authority has undertaken one of the largest public works projects in the country to control the pollution of Boston Harbor. The project includes construction of a new primary and secondary treatment plant and sludge treatment facilities, excavation of a long ocean outfall and diffuser, and a solution to the overflow of mixed sewage and stormwater during storms; it will take over twenty years and billions of dollars to construct. A comparison of the relative costs and environmental benefits of relative costs and environmental benefits of the various construction projects, and other pollution control strategies, shows that some projects are more cost-effective than others for solving specific pollution problems. The capture and treatment of combined sewer overflow (CSO) will result in a more dramatic reduction of pathogen contamination than will completion of the primary and secondary treatment plants. Although the flow of raw sewage is intermittent and relatively small, it has high concentrations of bacteria and viruses. On the other hand, the new treatment plants will be more important in reducing toxic contamination of fish and shellfish. In summary, all the planned clean-up projects appear to be necessary to reach the goal of a swimmable, fishable Boston Harbor.

  6. BUSEFL: The Boston University Space Environment Forecast Laboratory

    SciTech Connect

    Contos, A.R.; Sanchez, L.A.; Jorgensen, A.M.

    1996-07-01

    BUSEFL (Boston University Space Environment Forecast Laboratory) is a comprehensive, integrated project to address the issues and implications of space weather forecasting. An important goal of the BUSEFL mission is to serve as a testing ground for space weather algorithms and operational procedures. One such algorithm is the Magnetospheric Specification and Forecast Model (MSFM), which may be implemented in possible future space weather prediction centers. Boston University Student-satellite for Applications and Training (BUSAT), the satellite component of BUSEFL, will incorporate four experiments designed to measure (1) the earth{close_quote}s magnetic field, (2) distribution of energetic electrons trapped in the earth{close_quote}s radiation belts, (3) the mass and charge composition of the ion fluxes along the magnetic field lines and (4) the auroral forms at the foot of the field line in the auroral zones. Data from these experiments will be integrated into a ground system to evaluate space weather prediction codes. Data from the BUSEFL mission will be available to the scientific community and the public through media such as the World Wide Web (WWW). {copyright} {ital 1996 American Institute of Physics.}

  7. BUSEFL: The Boston University Space Environment Forecast Laboratory

    NASA Astrophysics Data System (ADS)

    Contos, Adam R.; Sanchez, Luis A.; Jorgensen, Anders M.

    1996-07-01

    BUSEFL (Boston University Space Environment Forecast Laboratory) is a comprehensive, integrated project to address the issues and implications of space weather forecasting. An important goal of the BUSEFL mission is to serve as a testing ground for space weather algorithms and operational procedures. One such algorithm is the Magnetospheric Specification and Forecast Model (MSFM), which may be implemented in possible future space weather prediction centers. Boston University Student-satellite for Applications and Training (BUSAT), the satellite component of BUSEFL, will incorporate four experiments designed to measure (1) the earth's magnetic field, (2) distribution of energetic electrons trapped in the earth's radiation belts, (3) the mass and charge composition of the ion fluxes along the magnetic field lines and (4) the auroral forms at the foot of the field line in the auroral zones. Data from these experiments will be integrated into a ground system to evaluate space weather prediction codes. Data from the BUSEFL mission will be available to the scientific community and the public through media such as the World Wide Web (WWW).

  8. Effects of a functional knee brace on the biomechanics of running.

    PubMed

    Devita, P; Hunter, P B; Skelly, W A

    1992-07-01

    The purpose of the study was to assess the biomechanical effects of a functional knee brace on joint moments of force and joint powers in the lower extremity during the stance phase of running in subjects with a previous ACL injury. Sagittal-plane film records and ground reaction force data were obtained from five previously injured subjects running with and without a functional knee brace and from five healthy subjects running without the brace. Inverse dynamics were performed on these data to obtain the moments of force and joint powers. The angular impulse in the extensor direction was assessed from each moment of force curve, and the work performed during selected portions of the stance phase was assessed from the joint power curves. ANOVA techniques on these variables indicated no significant differences between the brace and no-brace conditions in the previously injured subjects. In comparison with the healthy runners, the previously injured subjects had, on average, 49% and 32% greater extensor angular impulse about the hip and ankle (both P less than 0.05). In contrast, the healthy runners had, on average, 233% greater (P less than 0.05) extensor angular impulse about the knee. The corresponding negative and positive work performed at the knee were 321% and 191% larger (both P less than 0.05) in the healthy runners. The reduction in the extensor moment of force about the knee and the increase in the moments of force about the hip and ankle in the previously injured subjects reduced the stresses on the ACL and tibia while at the same time enabling them to run at the required speed. PMID:1501565

  9. [Conservative treatment of idiopathic scoliosis with effective braces: early response to trunk asymmetry may avoid curvature progress].

    PubMed

    Matussek, J; Dingeldey, E; Wagner, F; Rezai, G; Nahr, K

    2014-07-01

    Vertical posture of the growing child requires minute central nervous control mechanisms in order to maintain symmetry of the torso in its various activities. Scoliosis describes a constant deviation in the frontal, transverse and sagittal planes from the dynamic symmetry of the trunk. Early intervention with effective bracing, physiotherapy and sports can reverse curve progression during growth spurts, once these are identified in screening. Modern braces have a derotating and reducing effect (mirror effect) on asymmetric body volumes, thus influencing the growing torso and restoring lasting symmetry. Recent data support the use of braces to reverse progressing scoliosis. PMID:25028282

  10. Preliminary design characteristics of a subsonic business jet concept employing an aspect ratio 25 strut braced wing

    NASA Technical Reports Server (NTRS)

    Turriziani, R. V.; Lovell, W. A.; Martin, G. L.; Price, J. E.; Swanson, E. E.; Washburn, G. F.

    1980-01-01

    The advantages of replacing the conventional wing on a transatlantic business jet with a larger, strut braced wing of aspect ratio 25 were evaluated. The lifting struts reduce both the induced drag and structural weight of the heavier, high aspect ratio wing. Compared to the conventional airplane, the strut braced wing design offers significantly higher lift to drag ratios achieved at higher lift coefficients and, consequently, a combination of lower speeds and higher altitudes. The strut braced wing airplane provides fuel savings with an attendant increase in construction costs.

  11. Childe Hassam (1859-1935): Rebecca Rea, Museum of Fine Arts, Boston Coordinator of School Group Visits

    ERIC Educational Resources Information Center

    School Arts: The Art Education Magazine for Teachers, 2004

    2004-01-01

    Boston Common at Twilight illustrates that despite the urbanization of late-nineteenth-century Boston, one can still find a sense of peace and serenity there. This article describes Frederick Childe Hassam's painting, "Boston Common at Twilight." It highlights notable cultural, historical, and artistic elements in the painting and provides details…

  12. Anthropogenic platinum and palladium in the sediments of Boston Harbor

    USGS Publications Warehouse

    Tuit, C.B.; Ravizza, G.E.; Bothner, Michael H.

    2000-01-01

    Anthropogenic activity has increased recent sediment concentrations of Pt and Pd in Boston Harbor by approximately 5 times background concentrations. Surface sediments and downcore profiles were investigated to evaluate Pt and Pd accumulation and behavior in urban coastal sediments. There is no clear correlation between temporal changes in Pt and Pd consumption and sediment concentration. However, Pt/Pb and Pd/Pb ratios suggest that Pt and Pd flux into the Harbor may not be decreasing with cessation of sludge input as rapidly as other metals. This is supported by the large discrepancy between fluxes associated with sludge and effluent release and those calculated from surface sediment concentrations. This evidence supports catalytic converters as a major source of Pd and Pt to Boston Harbor but cannot preclude other sources. Pd does not exhibit signs of post-burial remobilization below the mixed layer in the sediment cores, although near-surface variability in Pd concentrations may indicate a labile Pd component. Pt displays an inverse correlation with Mn above the oxic/suboxic transition, similar to behavior seen in pristine sediments where Pt is thought to be chemically mobile. This study does not support the use of Pd and Pt as tracers of recent contaminated sedimentation. However, the possibility of a labile Pt and Pd in these sediments highlights the need for further study of the biological uptake of these metals.Anthropogenic activity has increased recent sediment concentrations of Pt and Pd in Boston Harbor by approximately 5 times background concentrations. Surface sediments and downcore profiles were investigated to evaluate Pt and Pd accumulation and behavior in urban coastal sediments. There is no clear correlation between temporal changes in Pt and Pd consumption and sediment concentration. However, Pt/Pb and Pd/Pb ratios suggest that Pt and Pd flux into the Harbor may not be decreasing with cessation of sludge input as rapidly as other metals. This is

  13. Research in particle physics. [Dept. of Physics, Boston Univ

    SciTech Connect

    Whitaker, Scott J.

    1992-09-01

    Research accomplishments and current activities of Boston University researchers in high energy physics are presented. Principal areas of activity include the following: detectors for studies of electron[endash]positron annihilation in colliding beams; advanced accelerator component design, including the superconducting beam inflector, electrostatic quadrupoles, and the electrostatic muon kicker''; the detector for the MACRO (Monopole, Astrophysics, and Cosmic Ray Observatory) experiment; neutrino astrophysics and the search for proton decay; theoretical particle physics (electroweak and flavor symmetry breaking, hadron collider phenomenology, cosmology and astrophysics, new field-theoretic models, nonperturbative investigations of quantum field theories, electroweak interactions); measurement of the anomalous magnetic moment of the muon; calorimetry for the GEM experiment; and muon detectors for the GEM experiment at the Superconducting Super Collider.

  14. Pleistocene stratigraphy of the Boston Harbor drumlins, Massachusetts

    USGS Publications Warehouse

    Newman, W.A.; Berg, R.C.; Rosen, P.S.; Glass, H.D.

    1990-01-01

    Evidence from the Boston Harbor drumlins indicates that two superposed tills were deposited during glacier advances which were separated by a long nonglacial interval. At Long and Peddocks Islands, argillans and truncated clay-filled fractures, along with discontinuities in clay-mineral composition, define the till contacts. Physical indicators separating the tills are not apparent at other exposures, where till boundaries were defined solely by discontinuities in clay-mineral composition. The weathering profile in the upper part of the lower till indicates extensive weathering under a climate similar to that of today, and probably similar to that of the Sangamon Interglaciation. The depth of the weathering profile, the sequence of clay-mineral alteration products, and the presence of pedogenic features in the upper part of the lower till are comparable to Sangamonian weathering profiles in the midwestern United States, implying that the lower till is Illinoian or older. ?? 1990.

  15. Pleistocene stratigraphy of the Boston Harbor drumlins, Massachusetts

    NASA Astrophysics Data System (ADS)

    Newman, William A.; Berg, Richard C.; Rosen, Peter S.; Glass, Herbert D.

    1990-09-01

    Evidence from the Boston Harbor drumlins indicates that two superposed tills were deposited during glacier advances which were separated by a long nonglacial interval. At Long and Peddocks Islands, argillans and truncated clay-filled fractures, along with discontinuities in clay-mineral composition, define the till contacts. Physical indicators separating the tills are not apparent at other exposures, where till boundaries were defined solely by discontinuities in clay-mineral composition. The weathering profile in the upper part of the lower till indicates extensive weathering under a climate similar to that of today, and probably similar to that of the Sangamon Interglaciation. The depth of the weathering profile, the sequence of clay-mineral alteration products, and the presence of pedogenic features in the upper part of the lower till are comparable to Sangamonian weathering profiles in the midwestern United States, implying that the lower till is Illinoian or older.

  16. The Boston Teacher Questionnaire. 2. Assessments of validity.

    PubMed

    Leviton, A; Kirby, C; Guild-Wilson, M; Neff, R K

    1993-01-01

    We assessed the validity of the Boston Teacher Questionnaire in a sample of 3451 9-year-old children. Those identified by the questionnaire as having a learning difficulty syndrome were compared to those without any characteristic of that syndrome. The validity reference measures were individually administered neuropsychological assessments at age 7 years and a group-administered reading achievement test at age 9 years. Girls and boys with the reading syndrome had much lower reading scores at age 9 years than did their peers. Boys, but not girls, with the arithmetic syndrome were much more likely than their peers to have arithmetic scores more than one grade below the expected level at age 7 years. Girls and boys with the tasks syndrome, characterized by impersistence, dependence, and inflexibility, were more likely than those without any features of the syndrome to be classified as having little or no goal orientation by a neuropsychologist who assessed the children in an office setting. Similarly, the neuropsychologist was much more likely than expected to have classified children with the attention syndrome as having a short attention span, and to have classified boys, but not girls, with the hyperactivity syndrome as having an unusual/extreme level and nature of overactivity. Children with any syndrome were more likely than others to have low scores on components of the Wechsler Intelligence Scale for Children, items of the Bender-Gestalt Test that assessed integration and distortion, and measures of reading comprehension. We conclude that the Boston Teacher Questionnaire validly identifies children with learning problems.

  17. Influence of functional knee bracing on the isokinetic and functional tests of anterior cruciate ligament deficient patients.

    PubMed

    Mortaza, Niyousha; Abu Osman, Noor Azuan; Jamshidi, Ali Ashraf; Razjouyan, Javad

    2013-01-01

    Use of functional knee braces has been suggested to provide protection and to improve kinetic performance of the knee in Anterior cruciate ligament(ACL)-injured patients. However, many athletes might refrain from wearing the braces because of the fear of performance hindrance in the playing field. The aim of this study was to examine the effect of three functional knee brace/sleeves upon the isokinetic and functional performance of ACL-deficient and healthy subjects. Six anterior cruciate ligament deficient (29.0 ± 5.3 yrs., 175.2 ± 5.4 cm, and 73.0 ± 10.0 kg) and six healthy male subjects (27.2 ± 3.7 yrs., 176.4 ± 6.4 cm, and 70.3 ± 6.9 kg) were selected. The effect of a custom-made functional knee brace, and two neoprene knee sleeves, one with four metal supports and one without support were examined via the use of isokinetic and functional tests in four sets (non-braced,wearing functional knee brace,and wearing the sleeves). Cross-over hop and single leg vertical jump test were performed and jump height, and hop distance were recorded. Peak torque to body weight ratio and average power in two isokinetic velocities(60°.s(-1),180°.s(-1)) were recorded and the brace/sleeves effect was calculated as the changes in peak torque measured in the brace/sleeves conditions, expressed as a percentage of peak torque measured in non-braced condition. Frequency content of the isokinetic torque-time curves was also analyzed. Wilcoxon signed rank test was used to compare the measured values in four test conditions within each control and ACL-deficient group,and Mann-Whitney U test was used for the comparison between the two groups. No significant differences in peak torque, average power, torque-time curve frequency content, vertical-jump and hop measurements were found within the experimental and the non-braced conditions (p>0.05). Although the examined functional knee brace/sleeves had no significant effect on the knee muscle performance, there have been some

  18. Influence of Functional Knee Bracing on the Isokinetic and Functional Tests of Anterior Cruciate Ligament Deficient Patients

    PubMed Central

    Mortaza, Niyousha; Abu Osman, Noor Azuan; Jamshidi, Ali Ashraf; Razjouyan, Javad

    2013-01-01

    Use of functional knee braces has been suggested to provide protection and to improve kinetic performance of the knee in Anterior cruciate ligament(ACL)-injured patients. However, many athletes might refrain from wearing the braces because of the fear of performance hindrance in the playing field. The aim of this study was to examine the effect of three functional knee brace/sleeves upon the isokinetic and functional performance of ACL-deficient and healthy subjects. Six anterior cruciate ligament deficient (29.0±5.3 yrs., 175.2±5.4 cm, and 73.0±10.0 kg) and six healthy male subjects (27.2±3.7 yrs., 176.4±6.4 cm, and 70.3±6.9 kg) were selected. The effect of a custom-made functional knee brace, and two neoprene knee sleeves, one with four metal supports and one without support were examined via the use of isokinetic and functional tests in four sets (non-braced,wearing functional knee brace,and wearing the sleeves). Cross-over hop and single leg vertical jump test were performed and jump height, and hop distance were recorded. Peak torque to body weight ratio and average power in two isokinetic velocities(60°.s−1,180°.s−1) were recorded and the brace/sleeves effect was calculated as the changes in peak torque measured in the brace/sleeves conditions, expressed as a percentage of peak torque measured in non-braced condition. Frequency content of the isokinetic torque-time curves was also analyzed. Wilcoxon signed rank test was used to compare the measured values in four test conditions within each control and ACL-deficient group,and Mann-Whitney U test was used for the comparison between the two groups. No significant differences in peak torque, average power, torque-time curve frequency content, vertical-jump and hop measurements were found within the experimental and the non-braced conditions (p>0.05). Although the examined functional knee brace/sleeves had no significant effect on the knee muscle performance, there have been some enhancement regarding

  19. Guideline update for the performance of fusion procedures for degenerative disease of the lumbar spine. Part 14: brace therapy as an adjunct to or substitute for lumbar fusion.

    PubMed

    Dailey, Andrew T; Ghogawala, Zoher; Choudhri, Tanvir F; Watters, William C; Resnick, Daniel K; Sharan, Alok; Eck, Jason C; Mummaneni, Praveen V; Wang, Jeffrey C; Groff, Michael W; Dhall, Sanjay S; Kaiser, Michael G

    2014-07-01

    The utilization of orthotic devices for lumbar degenerative disease has been justified from both a prognostic and therapeutic perspective. As a prognostic tool, bracing is applied prior to surgery to determine if immobilization of the spine leads to symptomatic relief and thus justify the performance of a fusion. Since bracing does not eliminate motion, the validity of this assumption is questionable. Only one low-level study has investigated the predictive value of bracing prior to surgery. No correlation between response to bracing and fusion outcome was observed; therefore a trial of preoperative bracing is not recommended. Based on low-level evidence, the use of bracing is not recommended for the prevention of low-back pain in a general working population, since the incidence of low-back pain and impact on productivity were not reduced. However, in laborers with a history of back pain, a positive impact on lost workdays was observed when bracing was applied. Bracing is recommended as an option for treatment of subacute low-back pain, as several higher-level studies have demonstrated an improvement in pain scores and function. The use of bracing following instrumented posterolateral fusion, however, is not recommended, since equivalent outcomes have been demonstrated with or without the application of a brace. PMID:24980591

  20. Guideline update for the performance of fusion procedures for degenerative disease of the lumbar spine. Part 14: brace therapy as an adjunct to or substitute for lumbar fusion.

    PubMed

    Dailey, Andrew T; Ghogawala, Zoher; Choudhri, Tanvir F; Watters, William C; Resnick, Daniel K; Sharan, Alok; Eck, Jason C; Mummaneni, Praveen V; Wang, Jeffrey C; Groff, Michael W; Dhall, Sanjay S; Kaiser, Michael G

    2014-07-01

    The utilization of orthotic devices for lumbar degenerative disease has been justified from both a prognostic and therapeutic perspective. As a prognostic tool, bracing is applied prior to surgery to determine if immobilization of the spine leads to symptomatic relief and thus justify the performance of a fusion. Since bracing does not eliminate motion, the validity of this assumption is questionable. Only one low-level study has investigated the predictive value of bracing prior to surgery. No correlation between response to bracing and fusion outcome was observed; therefore a trial of preoperative bracing is not recommended. Based on low-level evidence, the use of bracing is not recommended for the prevention of low-back pain in a general working population, since the incidence of low-back pain and impact on productivity were not reduced. However, in laborers with a history of back pain, a positive impact on lost workdays was observed when bracing was applied. Bracing is recommended as an option for treatment of subacute low-back pain, as several higher-level studies have demonstrated an improvement in pain scores and function. The use of bracing following instrumented posterolateral fusion, however, is not recommended, since equivalent outcomes have been demonstrated with or without the application of a brace.

  1. [Clinical relevance of unloading in cartilage therapy of the knee--shoe insoles, knee braces or additional operative procedure?].

    PubMed

    Kraus, T M; Imhoff, A B; Ateschrang, A; Stöckle, U; Schröter, S

    2015-02-01

    Restoration of a neutral biomechanical environment and reduction of overload is an important factor contributing to the success of any cartilage repair procedure. Reduction of overload can by achieved by so called unloading procedures in order to reduce intraarticular pressure from the repair zone. Unloading can be achieved via loss of weight, wedged shoe insoles, knee braces or via operations such as osteotomies around the knee joint. The cartilage therapy and the concomitant unloading procedure should be adapted to the individual pathology and realistic aims of the patient. Wedged insoles and braces are the least invasive treatment methods. In comparison, however, beneficial effects of braces outline those of laterally wedged heels. Nevertheless long-term compliance with insoles and braces is poor. Concerning braces either because the positive effects of the braces are too small or because the adverse effects are too large. Unloading in the long run may only be achieved through operative procedures. When an osteotomy seems to be too invasive the arthroscopic release of the posterior oblique ligament might be an option. Patients with an intact contralateral chondral status, medium to slight malalignment who want to remain at high activity levels, remain good candidates for unloading osteotomies.

  2. An alternative to a randomised control design for assessing the efficacy and effectiveness of bracing in adolescent idiopathic scoliosis.

    PubMed

    Fong, D Y T; Cheung, K M C; Wong, Y W; Cheung, W Y; Fu, I C Y; Kuong, E E; Mak, K C; To, M; Samartzis, D; Luk, K D K

    2015-07-01

    Randomised controlled trials (RCTs) that assessed the efficacy of bracing for adolescent idiopathic scoliosis have suffered from small sample sizes, low compliance and lack of willingness to participate. The aim of this study was to assess the feasibility of a comprehensive cohort study for evaluating both the efficacy and the effectiveness of bracing in patients with adolescent idiopathic scoliosis. Patients with curves at greater risk of progression were invited to join a randomised controlled trial. Those who declined were given the option to remain in the study and to choose whether they wished to be braced or observed. Of 87 eligible patients (5 boys and 63 girls) identified over one year, 68 (78%) with mean age of 12.5 years (10 to 15) consented to participate, with a mean follow-up of 168 weeks (0 to 290). Of these, 19 (28%) accepted randomisation. Of those who declined randomisation, 18 (37%) chose a brace. Patients who were more satisfied with their image were more likely to choose bracing (Odds Ratio 4.1; 95% confidence interval 1.1 to 15.0; p = 0.035). This comprehensive cohort study design facilitates the assessment of both efficacy and effectiveness of bracing in patients with adolescent idiopathic scoliosis, which is not feasible in a conventional randomised controlled trial.

  3. The effect of ankle bracing on peak mediolateral ground reaction force during cutting maneuvers in collegiate male basketball players.

    PubMed

    Cloak, Ross; Galloway, Shaun; Wyon, Matthew

    2010-09-01

    The literature suggests that one-third of ankle injuries sustained during a collegiate basketball season are due to the poor execution of dynamic cutting movements, leading to increased mediolateral force being placed on the unstable ankle. The objective of the present study was to examine the effect of ankle bracing on peak mediolateral ground reaction forces (PMGRF) during sidestep cutting motions in collegiate basketball players. Ten male collegiate basketball players, with no previous history of ankle trauma, performed sidestep cutting motions past a static defensive opponent at speeds between 4.5 and 5.5 meters per second under 2 different conditions, with and without ankle bracing. Peak mediolateral ground reaction force was recorded (as a unit of body weight) for each subject in both bracing and control conditions. The application of an Aircast brace significantly (P = 0.01) reduced peak mediolateral forces during cutting maneuvers compared with no brace. Results suggest that the application of an Aircast ankle brace significantly reduces PMGRF during cutting maneuvers around a static defensive opponent.

  4. Performance-based plastic design method for steel concentric braced frames

    NASA Astrophysics Data System (ADS)

    Banihashemi, M. R.; Mirzagoltabar, A. R.; Tavakoli, H. R.

    2015-09-01

    This paper presents a performance-based plastic design (PBPD) methodology for the design of steel concentric braced frames. The design base shear is obtained based on energy-work balance equation using pre-selected target drift and yield mechanism. To achieve the intended yield mechanism and behavior, plastic design is applied to detail the frame members. For validity, three baseline frames (3, 6, 9-story) are designed according to AISC (Seismic Provisions for Structural Steel Buildings, American Institute of Steel Construction, Chicago, 2005) seismic provisions (baseline frames). Then, the frames are redesigned based on the PBPD method. These frames are subjected to extensive nonlinear dynamic time-history analyses. The results show that the PBPD frames meet all the intended performance objectives in terms of yield mechanisms and target drifts, whereas the baseline frames show very poor response due to premature brace fractures leading to unacceptably large drifts and instability.

  5. Seismic design of steel structures with lead-extrusion dampers as knee braces

    NASA Astrophysics Data System (ADS)

    monir, Habib Saeed; Naser, Ali

    2008-07-01

    One of the effective methods in decreasing the seismic response of structure against dynamic loads due to earthquake is using energy dissipating systems. Lead-extrusion dampers (LED)are one of these systems that dissipate energy in to one lead sleeve because of steel rod movement. Hysteresis loops of these dampers are approximately rectangular and acts independent from velocity in frequencies that are in the seismic frequency rang. In this paper lead dampers are considered as knee brace in steel frames and are studied in an economical view. Considering that lead dampers don't clog structural panels, so this characteristic can solve brace problems from architectural view. The behavior of these dampers is compared with the other kind of dampers such as XADAS and TADAS. The results indicate that lead dampers act properly in absorbing the induced energy due to earthquake and good function in controlling seismic movements of multi-story structures

  6. Seismic design of steel structures with lead-extrusion dampers as knee braces

    SciTech Connect

    Monir, Habib Saeed; Naser, Ali

    2008-07-08

    One of the effective methods in decreasing the seismic response of structure against dynamic loads due to earthquake is using energy dissipating systems. Lead-extrusion dampers (LED) are one of these systems that dissipate energy in to one lead sleeve because of steel rod movement. Hysteresis loops of these dampers are approximately rectangular and acts independent from velocity in frequencies that are in the seismic frequency rang. In this paper lead dampers are considered as knee brace in steel frames and are studied in an economical view. Considering that lead dampers don't clog structural panels, so this characteristic can solve brace problems from architectural view. The behavior of these dampers is compared with the other kind of dampers such as XADAS and TADAS. The results indicate that lead dampers act properly in absorbing the induced energy due to earthquake and good function in controlling seismic movements of multi-story structures.

  7. Treatment of Humeral Fracture after Shoulder Arthroplasty using Functional Brace: A Case Report

    PubMed Central

    Terabayashi, Nobuo; Matsumoto, Kazu; Takigami, Iori; Ito, Yoshiki

    2016-01-01

    Introduction: A periprosthetic humeral fracture is rare after shoulder arthroplasty, and such cases have considerable problems. Patients with this kind of fracture are often complicated by osteopenia, other types of severe disease, or are elderly. Surgical treatment of this fracture type carries some risk, and surgeons may be unsure about the most appropriate approach to adopt. Case report: The present case occurred in a 78-year-old woman with an osteoporotic humeral bone, and chronic dislocation of shoulder after shoulder arthroplasty. There were many risk factors for revision surgery or ostheosynthesis. Therefore, we decided to treat the patient by functional bracing. Fortunately, complete radiographic union was confirmed at 17 weeks. She returned to daily life with good functional activity. Conclusion: In our opinion, it is acceptable to select functional bracing for periprosthetic humeral fractures after shoulder arthroplasty without stem loosening in elderly patients with an osteoporotic humeral bone. PMID:27299112

  8. The Boston Schoolyard Initiative: A Study of Its Schoolyard Renovations--Disseminating Lessons Learned from a Case Study Analysis of a Successful Active Space Redevelopment Program. Program Results

    ERIC Educational Resources Information Center

    Nakashian, Mary

    2008-01-01

    Researchers in the Boston University Department of Environmental Health conducted a case study of the Boston Schoolyard Initiative, a project that provides funds and technical support to community groups dedicated to renovating schoolyards in Boston. Researchers described the process by which the Boston Schoolyard Initiative came into being and…

  9. 13. 'Portal and Transverse Bracing, 1 180'01/4' c. to ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. 'Portal and Transverse Bracing, 1 - 180'-0-1/4' c. to c. end pins S. Tr. Thro. Truss Span, 16th Crossing Sacramento River, Sacramento Division, So. Pac. Co., The Phoenix Bridge Co., C.O. #842, Draw #6, Engineer C. Scheidl, Draftsman Hermanns, Scale 1' = 1', Apr. 26, 1901.' - Southern Pacific Railroad Shasta Route, Bridge No. 324.99, Milepost 324.99, Shasta Springs, Siskiyou County, CA

  10. 13. 'Transverse Bracing for 1 208'101/2' C. to C. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. 'Transverse Bracing for 1 - 208'-10-1/2' C. to C. End Pins S. Tr. Thro. Skew Span, 6th Crossing of Sacramento River, So. Pac. Co., The Phoenix Bridge Co., C.O. 836D, Drawing No. 7, Scale - 1' = 1', Engineer - B.M. Krohn, May 11th `01, Slaughter' - Southern Pacific Railroad Shasta Route, Bridge No. 301.85, Milepost 301.85, Pollard Flat, Shasta County, CA

  11. The role of external nonrigid ankle bracing in limiting ankle inversion.

    PubMed

    Anderson, D L; Sanderson, D J; Hennig, E M

    1995-01-01

    The purpose of this study was to measure the effectiveness of the nonrigid subtalar stabilizer (STS) ankle brace under conditions similar to an unexpected fall that could lead to a lateral ligament injury. The calcaneal inversion angles, times, and ground reaction forces were measured when the subject's right foot, bearing body weight, was suddenly inverted to a side slope of 22 degrees. Thirty subjects, 15 women and 15 men, participated in the study. The overall inversion drop was divided into two phases, free fall and loading. Based on the data of this study it is suggested that the major function of a brace is to restrict the amount of foot inversion during the fall before actual landing occurs rather than functioning as a force bypass for the lateral ligaments during loading after foot contact. The results showed that the brace significantly (p < 0.05) reduced the maximum calcaneal inversion angle from 27.4 +/- 6.1 to 18.3 +/- 6.0 degrees for the overall drop, significantly lengthened the inversion time from 0.14 +/- 0.04 to 0.18 +/- 0.04 s for the overall drop, and significantly reduced the calcaneal peak inversion velocity from 324.6 +/- 111.9 to 165.2 +/- 66.5 degrees/s during loading, and from 278.7 +/- 120.0 to 183.0 +/- 108.7 degrees/s for the overall drop. Following exercise, which incorporated lateral movements and sprinting, the STS ankle brace continued to provide significant (p < 0.05) reduction in the calcaneal inversion angle and velocity, although some of its effectiveness was reduced.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:7614076

  12. Results from large scale ultimate strength tests of K-braced jacket frame structures

    SciTech Connect

    Bolt, H.M.

    1995-12-01

    Phase 2 of the JIP Frames Project included four large scale collapse tests of K-braced frames in which both gap and overlap K joints were the critical components. The results are presented in this paper. The local failure modes differed from typical isolated component tests, yet were representative of structural damage observed following Hurricane Andrew. The frame test results therefore provide important insight to the ultimate response of offshore jacket structures.

  13. A pneumatic leg brace for the treatment of tibial stress fractures.

    PubMed

    Whitelaw, G P; Wetzler, M J; Levy, A S; Segal, D; Bissonnette, K

    1991-09-01

    Forty-two competitive athletes with posterior medial pain in the lower one-half of the tibia were evaluated by plain roentgenograms and bone scans. Twenty stress fractures were diagnosed in 17 patients by plain roentgenograms or bone scans or both. The remaining 25 patients were diagnosed as having shin splints. All 42 patients subsequently had a pneumatic leg brace applied to the affected limb or limbs. The 17 patients with stress fractures were able to ambulate without pain and were allowed to resume light training in an average of one week. Their injuries were nontender to palpation. The patients were allowed to resume intensive training at an average of 3.7 weeks postinjury. Patients returned to competition at the preinjury level in an average of 5.3 weeks after application of the brace. The pneumatic leg brace allowed the athletes with tibial stress fractures to begin pain-free ambulation and rehabilitation, thus facilitating the maintenance of their cardiovascular fitness and permitting an early return to competition.

  14. Displacement-Based Seismic Design Procedure for Framed Buildings with Dissipative Braces Part I: Theoretical formulation

    SciTech Connect

    Mazza, Fabio; Vulcano, Alfonso

    2008-07-08

    The insertion of steel braces equipped with dissipative devices proves to be very effective in order to enhance the performance of a framed building under horizontal seismic loads. Multi-level design criteria were proposed according to the Performance-Based Design, in order to get, for a specific level of the seismic intensity, a designated performance objective of the building (e.g., an assigned damage level of either the framed structure or non-structural elements). In this paper a design procedure aiming to proportion braces with hysteretic dampers in order to attain, for a specific level of the seismic intensity, a designated performance level of the building is proposed. Exactly, a proportional stiffness criterion, which assumes the elastic lateral storey-stiffness due to the braces proportional to that of the unbraced frame, is combined with the Direct Displacement-Based Design, in which the design starts from target deformations. A computer code has been prepared for the nonlinear static and dynamic analyses, using a step-by-step procedure. Frame members and hysteretic dampers are idealized by bilinear models.

  15. Developing an Accurate CFD Based Gust Model for the Truss Braced Wing Aircraft

    NASA Technical Reports Server (NTRS)

    Bartels, Robert E.

    2013-01-01

    The increased flexibility of long endurance aircraft having high aspect ratio wings necessitates attention to gust response and perhaps the incorporation of gust load alleviation. The design of civil transport aircraft with a strut or truss-braced high aspect ratio wing furthermore requires gust response analysis in the transonic cruise range. This requirement motivates the use of high fidelity nonlinear computational fluid dynamics (CFD) for gust response analysis. This paper presents the development of a CFD based gust model for the truss braced wing aircraft. A sharp-edged gust provides the gust system identification. The result of the system identification is several thousand time steps of instantaneous pressure coefficients over the entire vehicle. This data is filtered and downsampled to provide the snapshot data set from which a reduced order model is developed. A stochastic singular value decomposition algorithm is used to obtain a proper orthogonal decomposition (POD). The POD model is combined with a convolution integral to predict the time varying pressure coefficient distribution due to a novel gust profile. Finally the unsteady surface pressure response of the truss braced wing vehicle to a one-minus-cosine gust, simulated using the reduced order model, is compared with the full CFD.

  16. Aeroelasticity of Axially Loaded Aerodynamic Structures for Truss-Braced Wing Aircraft

    NASA Technical Reports Server (NTRS)

    Nguyen, Nhan; Ting, Eric; Lebofsky, Sonia

    2015-01-01

    This paper presents an aeroelastic finite-element formulation for axially loaded aerodynamic structures. The presence of axial loading causes the bending and torsional sitffnesses to change. For aircraft with axially loaded structures such as the truss-braced wing aircraft, the aeroelastic behaviors of such structures are nonlinear and depend on the aerodynamic loading exerted on these structures. Under axial strain, a tensile force is created which can influence the stiffness of the overall aircraft structure. This tension stiffening is a geometric nonlinear effect that needs to be captured in aeroelastic analyses to better understand the behaviors of these types of aircraft structures. A frequency analysis of a rotating blade structure is performed to demonstrate the analytical method. A flutter analysis of a truss-braced wing aircraft is performed to analyze the effect of geometric nonlinear effect of tension stiffening on the flutter speed. The results show that the geometric nonlinear tension stiffening effect can have a significant impact on the flutter speed prediction. In general, increased wing loading results in an increase in the flutter speed. The study illustrates the importance of accounting for the geometric nonlinear tension stiffening effect in analyzing the truss-braced wing aircraft.

  17. Minimally Invasive Repair of Pectus Carinatum in Patients Unsuited to Bracing Therapy

    PubMed Central

    Suh, Jee-Won; Joo, Seok; Lee, Geun Dong; Haam, Seok Jin; Lee, Sungsoo

    2016-01-01

    Background We used an Abramson technique for minimally invasive repair of pectus carinatum in patients who preferred surgery to brace therapy, had been unsuccessfully treated via brace therapy, or were unsuitable for brace therapy because of a rigid chest wall. Methods Between July 2011 and May 2015, 16 patients with pectus carinatum underwent minimally invasive surgery. Results The mean age of the patients was 24.35±13.20 years (range, 14–57 years), and all patients were male. The percentage of excellent aesthetic results, as rated by the patients, was 37.5%, and the percentage of good results was 56.25%. The preoperative and postoperative Haller Index values were 2.01±0.19 (range, 1.60–2.31), and 2.22±0.19 (range, 1.87–2.50), respectively (p-value=0.01), and the median hospital stay was 7.09±2.91 days (range, 5–15 days). Only one patient experienced postoperative complications. Conclusion Minimally invasive repair is effective for the treatment of pectus carinatum, even in adult patients. PMID:27066432

  18. Threat perception after the Boston Marathon bombings: The effects of personal relevance and conceptual framing.

    PubMed

    Wormwood, Jolie Baumann; Lynn, Spencer K; Feldman Barrett, Lisa; Quigley, Karen S

    2016-01-01

    We examined how the Boston Marathon bombings affected threat perception in the Boston community. In a threat perception task, participants attempted to "shoot" armed targets and avoid shooting unarmed targets. Participants viewing images of the bombings accompanied by affectively negative music and text (e.g., "Terror Strikes Boston") made more false alarms (i.e., more errors "shooting" unarmed targets) compared to participants viewing the same images accompanied by affectively positive music and text (e.g., "Boston Strong") and participants who did not view bombing images. This difference appears to be driven by decreased sensitivity (i.e., decreased ability to distinguish guns from non-guns) as opposed to a more liberal bias (i.e., favouring the "shoot" response). Additionally, the more strongly affected the participant was by the bombings, the more their sensitivity was reduced in the negatively framed condition, suggesting that this framing was particularly detrimental to the most vulnerable individuals in the affected community. PMID:25707419

  19. 76 FR 60599 - Boston & Maine Corporation-Abandonment Exemptions-in Rockingham, NH; Springfield Terminal Railway...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-29

    ...; Springfield Terminal Railway Company--Discontinuance of Service Exemptions--in Rockingham, NH Boston & Maine Corporation (B&M) and Springfield Terminal Railway Company (ST) (collectively, applicants) have jointly...

  20. Impact of the Boston Marathon Bombing and Its Aftermath on Refugees and Survivors of Torture.

    PubMed

    Piwowarczyk, Linda; Rous, Dana; Mancuso, Anna; Flinton, Kathleen; Hastings, Erica; Forbush, Leigh; Shepherd, Amy

    2016-08-01

    On April 15, 2013, Boston residents and guests gathered for the Boston Marathon. Two explosives at the finish line killed three people and injured hundreds of others. As part of our clinical encounters, patients of the Boston Center for Refugee Health & Human Rights were asked about the marathon bombing. We were concerned about the high level of armed security as many of our patients had been detained in their countries of origin. Eighty patients seen between April 16 and July 7, 2013 were asked about their experience of the Boston Marathon bombing and its aftermath. A retrospective chart review was undertaken and data analyzed using Atlas.ti & SPSS. Approximately 86 % of those interviewed were reminded of their past trauma. The following themes emerged: triggering and trauma related symptoms, content specific cognitive schemas, recognition of the universality of violence, fears of discrimination, issues surrounding safety, and specific concerns of Muslims. PMID:26289501

  1. 77 FR 11140 - Availability of the Draft Supplementary Risk Assessment for the Boston University (BU) National...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-24

    ... University Medical Campus (BUMC) BioSquare Research Park, Boston, where the NEIDL has been constructed; the... Environmental Policy Act. Construction of the NEIDL began at the BioSquare II Research Park on Albany...

  2. Threat perception after the Boston Marathon bombings: The effects of personal relevance and conceptual framing.

    PubMed

    Wormwood, Jolie Baumann; Lynn, Spencer K; Feldman Barrett, Lisa; Quigley, Karen S

    2016-01-01

    We examined how the Boston Marathon bombings affected threat perception in the Boston community. In a threat perception task, participants attempted to "shoot" armed targets and avoid shooting unarmed targets. Participants viewing images of the bombings accompanied by affectively negative music and text (e.g., "Terror Strikes Boston") made more false alarms (i.e., more errors "shooting" unarmed targets) compared to participants viewing the same images accompanied by affectively positive music and text (e.g., "Boston Strong") and participants who did not view bombing images. This difference appears to be driven by decreased sensitivity (i.e., decreased ability to distinguish guns from non-guns) as opposed to a more liberal bias (i.e., favouring the "shoot" response). Additionally, the more strongly affected the participant was by the bombings, the more their sensitivity was reduced in the negatively framed condition, suggesting that this framing was particularly detrimental to the most vulnerable individuals in the affected community.

  3. Using the Boston Consulting Group Matrix To Analyze College Programs: Should that New Major Be Approved?

    ERIC Educational Resources Information Center

    Green, Mark T.; Odom, Lamar; Alexander, Jacquelyn; Hudspeth, Elizabeth; Hudsepth, Gregory

    2003-01-01

    Describes potential use of Boston Consulting Group Matrix to evaluate proposed new college and university programs or majors. The product evaluation matrix consisted of two major variables: product growth rate and market share. Provides an example of the matrix. (PKP)

  4. Impact of the Boston Marathon Bombing and Its Aftermath on Refugees and Survivors of Torture.

    PubMed

    Piwowarczyk, Linda; Rous, Dana; Mancuso, Anna; Flinton, Kathleen; Hastings, Erica; Forbush, Leigh; Shepherd, Amy

    2016-08-01

    On April 15, 2013, Boston residents and guests gathered for the Boston Marathon. Two explosives at the finish line killed three people and injured hundreds of others. As part of our clinical encounters, patients of the Boston Center for Refugee Health & Human Rights were asked about the marathon bombing. We were concerned about the high level of armed security as many of our patients had been detained in their countries of origin. Eighty patients seen between April 16 and July 7, 2013 were asked about their experience of the Boston Marathon bombing and its aftermath. A retrospective chart review was undertaken and data analyzed using Atlas.ti & SPSS. Approximately 86 % of those interviewed were reminded of their past trauma. The following themes emerged: triggering and trauma related symptoms, content specific cognitive schemas, recognition of the universality of violence, fears of discrimination, issues surrounding safety, and specific concerns of Muslims.

  5. The risk of childhood injury on Boston's playground equipment and surfaces.

    PubMed Central

    Bond, M T; Peck, M G

    1993-01-01

    The Childhood Injury Prevention Program of the Boston Department of Health and Hospitals conducted a survey of injury risk in Boston's playgrounds. A standardized checklist was used to assess a 25% sample of public playgrounds for hazards. Climbers accounted for 34% of the hazards observed and had the greatest proportion of significant hazards. The surfacing material in 100% of the playgrounds observed was unsafe. Urban children risk exposure to hazardous playground equipment frequently situated above unsafe surfacing material. PMID:8484458

  6. Treatment of chronic low back pain in patients with spinal deformities using a sagittal re-alignment brace

    PubMed Central

    Weiss, Hans-Rudolf; Werkmann, Mario

    2009-01-01

    Background For adult scoliosis patients with chronic low back pain bracing is initially indicated before spinal surgery is considered. Until recently there has been a lack of research into the effect upon pain reductions in the mid and long-term. Promising results have been documented in short-term studies for the application of a sagittal re-alignment brace in patients with spinal deformities and along with pain; however mid-term and long-term results are not yet available. The purpose of this study is to investigate the mid-term effects of this brace with respect to pain control. Materials and methods 67 patients (58 females and 9 males) with chronic low back pain (> 24 months) and the diagnosis of scoliosis or hyperkyphosis were treated with a sagittal re-alignment brace (physio-logic brace™) between January 2006 and July 2007. The indication for this kind of brace treatment was derived from a positive sagittal re-alignment test (SRT) and the exclusion of successful conservative treatment during the last 24 months. The aim of this type of conservative intervention was to avoid surgery for chronic low back pain. Results The average pain intensity was measured on the Roland and Morris VRS (5 steps) before treatment. This was 3.3 (t1), at the time of brace adjustment it was 2.7 (t2) and after at an average observation time of 18 months it was 2.0 (t3). The differences were highly significant in the Wilcoxon test. Discussion Short-term measurements showed that a significant pain reduction is possible in chronic postural low back pain using a sagittal re-alignment brace inducing lumbar re-lordosation. In a preliminary report at adjustment (t2), highly significant improvements of pain intensity have also been demonstrated. At 6 months of treatment however, no improvement was measured. The improvement of the mid-term effects (18 months) found in this study compared to the preliminary report may be due to the changed approach to compliance: whilst the bracing standard

  7. Alcohol Advertising at Boston Subway Stations: An Assessment of Exposure by Race and Socioeconomic Status

    PubMed Central

    Poirier, Katie; Wilkinson, Tiana; Nhean, Siphannay; Nyborn, Justin; Siegel, Michael

    2011-01-01

    Objectives. We investigated the frequency of alcohol ads at all 113 subway and streetcar stations in Boston and the patterns of community exposure stratified by race, socioeconomic status, and age. Methods. We assessed the extent of alcohol advertising at each station in May 2009. We measured gross impressions and gross rating points (GRPs) for the entire Greater Boston population and for Boston public school student commuters. We compared the frequency of alcohol advertising between neighborhoods with differing demographics. Results. For the Greater Boston population, alcohol advertising at subway stations generated 109 GRPs on a typical day. For Boston public school students in grades 5 to 12, alcohol advertising at stations generated 134 GRPs. Advertising at stations in low-poverty neighborhoods generated 14.1 GRPs and at stations in high-poverty areas, 63.6 GRPs. Conclusions. Alcohol ads reach the equivalent of every adult in the Greater Boston region and the equivalent of every 5th- to 12th-grade public school student each day. More alcohol ads were displayed in stations in neighborhoods with high poverty rates than in stations in neighborhoods with low poverty rates. PMID:21852632

  8. ASIC design and data communications for the Boston retinal prosthesis.

    PubMed

    Shire, Douglas B; Ellersick, William; Kelly, Shawn K; Doyle, Patrick; Priplata, Attila; Drohan, William; Mendoza, Oscar; Gingerich, Marcus; McKee, Bruce; Wyatt, John L; Rizzo, Joseph F

    2012-01-01

    We report on the design and testing of a custom application-specific integrated circuit (ASIC) that has been developed as a key component of the Boston retinal prosthesis. This device has been designed for patients who are blind due to age-related macular degeneration or retinitis pigmentosa. Key safety and communication features of the low-power ASIC are described, as are the highly configurable neural stimulation current waveforms that are delivered to its greater than 256 output electrodes. The ASIC was created using an 0.18 micron Si fabrication process utilizing standard 1.8 volt CMOS transistors as well as 20 volt lightly doped drain FETs. The communication system receives frequency-shift keyed inputs at 6.78 MHz from an implanted secondary coil, and transmits data back to the control unit through a lower-bandwidth channel that employs load-shift keying. The design's safety is ensured by on-board electrode voltage monitoring, stimulus charge limits, error checking of data transmitted to the implant, and comprehensive self-test and performance monitoring features. Each stimulus cycle is initiated by a transmitted word with a full 32-bit error check code. Taken together, these features allow researchers to safely and wirelessly tailor retinal stimulation and vision recovery for each patient. PMID:23365888

  9. Is the Boston Naming Test still fit for purpose?

    PubMed

    Harry, Alexandra; Crowe, Simon F

    2014-01-01

    The Boston Naming Test (BNT) (Kaplan, Goodglass, & Weintraub, 1983) is the most commonly used test of confrontation naming in neuropsychology (Rabin, Barr, & Burton, 2005). However, there are significant criticisms of the BNT which suggest that it might not be the assessment measure of choice. These criticisms are that the BNT has poor psychometric properties, is not adequately standardized, and has inadequate norms. It is further suggested that when considered in the context of contemporary conceptualizations of the neuropsychology of naming, the BNT does not adequately capture the processes known to be required for successful naming, and does not sample widely enough from the content domain of "naming". These criticisms suggest that the BNT is flawed as a measure of naming, and are discussed in detail in this review. Other stand-alone visual confrontation naming tasks are reviewed to evaluate whether any might be viable substitutes for the BNT in clinical neuropsychology. The Naming Test from the Neuropsychological Assessment Battery (Stern & White, 2009) was identified as a possible alternative to the BNT, however, neither of these tests was designed with reference to models of the neuropsychology of naming, and development of a new test of naming is indicated.

  10. Sediment quality assessment studies in Boston Harbor, Massachusetts

    SciTech Connect

    Carr, R.S.; Chapman, D.C.; Biedenbach, J.M.; Long, E.R.; Thursby, G.; MacDonald, D.D.

    1995-12-31

    As part of NOAA`s National Status and Trends program, a bioeffects assessment study was conducted in the vicinity of Boston Harbor, Massachusetts. Surficial sediment samples were collected at 55 sites and subsamples were tested for toxicity using (1) the 10-day whole sediment test with Ampelisca abdita, (2) the sea urchin (Arbacia punctulata) fertilization and embryological development assays with sediment pore water, and (3) Microtox{trademark} assay with organic sediment extracts. Eleven percent of the samples were significantly toxic in the amphipod test, only 4% were toxic in the sea urchin fertilization test whereas all of the samples were highly toxic in the sea urchin embryological development assay; the Microtox assay determined 56% of the organic sediment extracts to be significantly toxic. Sediment chemical analyses for metals, AVS/SEM, PAHs, PCBs, and pesticides were performed on 30 of the 55 samples. Twenty-seven of the 30 samples exceeded at least one probable effects level (PEL) value. For the 20 samples that exceeded 5 or more PELS, the concordance between the predicted and observed toxicity was 20% for the amphipod test, 60% for the Microtox test, and 100% for the sea urchin embryological development assay. There were no significant correlations among the different toxicity tests or between the tests and the contaminant concentrations in the bulk sediment. Possible explanations for the apparent lack of correlation between the sediment chemistry and the toxicity tests will be discussed.

  11. The Unintentional Injurer: Results From the Boston Youth Survey

    PubMed Central

    Solnick, Sara J.

    2011-01-01

    Objectives. We sought to provide additional information about the characteristics of adolescents who were most likely to cause unintentional injury to other people. Methods. In 2008, as part of a randomized survey of high-school students in the Boston Public School system, more than 1800 respondents answered questions about unintentionally causing an injury to someone else in the past year. Results. More than 20% of boys and 13% of girls reported unintentionally injuring another person in the past year. Being male, exercising, participating in organized activities, and having carried a knife were risk factors for unintentionally causing an injury during sports. Using illegal drugs, having friends who are a bad influence, and having carried a knife were risk factors for unintentionally causing an injury not associated with sports. Conclusions. Unintentionally injuring another person is a fairly common event for high-school students. Characteristics differ between adolescents who unintentionally injure others during sports versus those who unintentionally injure others during nonsports activities. Many of the risk factors for causing unintentional injury unrelated to sports are similar to those for intentionally causing injury. PMID:21389291

  12. Mapping urban pipeline leaks: methane leaks across Boston.

    PubMed

    Phillips, Nathan G; Ackley, Robert; Crosson, Eric R; Down, Adrian; Hutyra, Lucy R; Brondfield, Max; Karr, Jonathan D; Zhao, Kaiguang; Jackson, Robert B

    2013-02-01

    Natural gas is the largest source of anthropogenic emissions of methane (CH(4)) in the United States. To assess pipeline emissions across a major city, we mapped CH(4) leaks across all 785 road miles in the city of Boston using a cavity-ring-down mobile CH(4) analyzer. We identified 3356 CH(4) leaks with concentrations exceeding up to 15 times the global background level. Separately, we measured δ(13)CH(4) isotopic signatures from a subset of these leaks. The δ(13)CH(4) signatures (mean = -42.8‰ ± 1.3‰ s.e.; n = 32) strongly indicate a fossil fuel source rather than a biogenic source for most of the leaks; natural gas sampled across the city had average δ(13)CH(4) values of -36.8‰ (± 0.7‰ s.e., n = 10), whereas CH(4) collected from landfill sites, wetlands, and sewer systems had δ(13)CH(4) signatures ~20‰ lighter (μ = -57.8‰, ± 1.6‰ s.e., n = 8). Repairing leaky natural gas distribution systems will reduce greenhouse gas emissions, increase consumer health and safety, and save money.

  13. Imaging of lower extremity trauma from Boston Marathon bombing.

    PubMed

    Konwinski, Ryan R; Singh, Ajay; Soto, Jorge

    2016-10-01

    The goal of this study is to describe the imaging features of lower extremity blast injuries in patients encountered in the radiology departments from the Boston Marathon bombings. A total of 115 patients presented to four acute care hospitals on April 15, 2013, 43 of whom presented with lower extremity injuries and were included in this study. The imaging findings of primary, secondary, tertiary, and quaternary blast injuries were evaluated. Forty-one of 43 patients sustained secondary blast injuries to the lower extremities with 31 patients (70 %) having retained shrapnel, seven patients (16 %) having soft tissue lacerations without retained shrapnel, and ten patients (23 %) having lower extremity amputation (7 % double amputees). Eight of these patients (20 %) had lower extremity fractures, and five patients (12 %) had vascular injuries. Two of the 43 patients (5 %) had only tertiary injuries, and five of 43 patients (12 %) were noted to have lower extremity burns, consistent with quaternary blast injury. No primary blast injury occurred in the lower extremities. A vast majority of lower extremity injuries were from secondary blast injury, most commonly from retained shrapnel in 70 % of patients and 23 % of patients sustaining lower extremity amputation. Retained shrapnel in the lower extremity was most commonly ball bearings and pressure cooker fragments, and most injuries affected the leg, followed by the thigh and foot. PMID:27272899

  14. Temporal trends in organic contaminant bioaccumulation in Boston Harbor

    SciTech Connect

    Hall, M.P.; Connor, M.S.; Downey, P.C.

    1995-12-31

    Since 1987 the MWRA has used in situ caged mussels (Mytilus edulis) to assess organic contaminant (PAHs, PCBs, organochlorine pesticides) bioaccumulation resulting from the primary treatment discharge of its Deer Island POTW. Results indicate a substantial reduction in many contaminants, most notably the Low Molecular Weight (petrogenic) PAHs which are clearly associated with the Deer Island discharge. NOAA `Mussel Watch` and other fish tissue contaminant data are used to support the observation of these decreases. Effluent water quality data and concurrent mussel body burden data from dirty and clean control sites are used to interpret the trends and elucidate the contamination sources. During the same time frame histopathological analyses of winter flounder collected in proximity to the Deer Island discharge have shown a marked reduction in liver lesions and other contaminant related diseases. More recently (since 1992) slight elevations in chlordane, dieldrin, and total DDTs have been noted in mussel, flounder, and lobster tissue collected from Boston Harbor and Massachusetts Bay. The authors discuss the possibility that remobilization of contaminants from the sediments may be a source of this apparent increase.

  15. The new PhysTEC program at Boston University

    NASA Astrophysics Data System (ADS)

    Jenkins, Juliet; Duffy, Andrew

    2011-11-01

    The Boston University Physics Department was recently awarded a three-year grant from the Physics Teacher Education Coalition (PhysTEC). PhysTEC's main aims are to improve the education of future physics teachers, and to increase the number of qualified physics teachers in the school system. Although there have been over 20 PhysTEC-funded sites across the country, BU is the first PhysTEC site in New England. Our goals with this poster are to raise awareness about PhysTEC, and to talk about what we are doing and what we plan to do at BU with our PhysTEC funding. A key part of the PhysTEC program is the teacher-in-residence (TIR), an experienced physics teacher who comes to campus for a year to promote physics teaching as a profession and to lend their experience to education-related efforts. Our first TIR is Juliet Jenkins. The poster will discuss Ms. Jenkins' role in the Department of Physics and in the School of Education as we move forward with new efforts to promote teaching, including a Learning Assistant program, a pilot studio section of one of our introductory physics courses, and a new education course that allows undergraduate students to observe teachers in the classroom.

  16. Imaging of lower extremity trauma from Boston Marathon bombing.

    PubMed

    Konwinski, Ryan R; Singh, Ajay; Soto, Jorge

    2016-10-01

    The goal of this study is to describe the imaging features of lower extremity blast injuries in patients encountered in the radiology departments from the Boston Marathon bombings. A total of 115 patients presented to four acute care hospitals on April 15, 2013, 43 of whom presented with lower extremity injuries and were included in this study. The imaging findings of primary, secondary, tertiary, and quaternary blast injuries were evaluated. Forty-one of 43 patients sustained secondary blast injuries to the lower extremities with 31 patients (70 %) having retained shrapnel, seven patients (16 %) having soft tissue lacerations without retained shrapnel, and ten patients (23 %) having lower extremity amputation (7 % double amputees). Eight of these patients (20 %) had lower extremity fractures, and five patients (12 %) had vascular injuries. Two of the 43 patients (5 %) had only tertiary injuries, and five of 43 patients (12 %) were noted to have lower extremity burns, consistent with quaternary blast injury. No primary blast injury occurred in the lower extremities. A vast majority of lower extremity injuries were from secondary blast injury, most commonly from retained shrapnel in 70 % of patients and 23 % of patients sustaining lower extremity amputation. Retained shrapnel in the lower extremity was most commonly ball bearings and pressure cooker fragments, and most injuries affected the leg, followed by the thigh and foot.

  17. Record performances at the Boston Marathon: Biometeorological factors

    NASA Astrophysics Data System (ADS)

    Trapasso, L. Michael; Cooper, Jeffery D.

    1989-12-01

    Air temperature and relative humidity have long been suspected of affecting the performance of marathon runners. Though these factors are important in their extremes, we show that other factors are even more indicative of race performances. Performances of the top 3 finishers in the last 30 Boston Marathons were correlated with hourly meteorological data for each race day. These 90 individual performances were classified as: record breaking performances (31), average performances (35), and unusually slow performances (24). The factors that help predict record breaking and unusually slow performances are: (i) wet bulb temperature, (ii) percent sky cover, and (iii) presence or absence of a light precipitation. Record breaking performances are characterized by a wet bulb temperature of <7.8°C, and 100% sky cover. A light drizzle is also conducive to better performances. On the other hand, unusually low performances are accompanied by a wet bulb temperature of >7.8°C, and a sky cover of 50% or less. No light, precipitation was recorded on any of the unusually slow race days. A graphic analysis clearly shows these relationships to exist. In addition, a multiple regression analysis confirms the importance of these variables. The authors advise that these are reliable predictors; however, when considering marathon races held in various geographical regions and differing climatic regimes, the exact numerical thresholds used here may not apply.

  18. Building a culture of excellence in Boston and beyond.

    PubMed

    Hickey, Patricia A

    2010-10-01

    There is mounting evidence that unhealthy work environments result in dissatisfied staff, breakdown in communication among disciplines, and poor patient outcomes. The American Association of Critical Care Nurses (AACN) Standards for Establishing and Sustaining Healthy Work Environments and the American College of Chest Physicians (ACCP) Patient-Focused Care project were developed as complementary initiatives to provide direction for improving patient care environments. Hospitalized pediatric patients benefit from interdisciplinary collaboration, teamwork, and clinical innovation that are not obstructed by disciplinary silos and rigid roles. AACN's 6 evidence-based standards are used as a framework to guide this discussion about cultures of excellence in pediatric cardiovascular programs through the lens of an experienced nurse administrator. Each standard interacts in a dynamic way to promote clinical and operational excellence for optimal patient outcomes. Evidence-based examples of contemporary interdisciplinary practice from pediatric cardiovascular centers are described for each of the standards. The 2010 results from the AACN Healthy Work Environment Survey for the cardiovascular program at Children's Hospital Boston are documented. The AACN standards are aligned as a foundation for assessment and improvement of pediatric professional practice environments. Implementation of the standards may be helpful in achieving a culture of excellence in pediatric cardiovascular centers. Monitoring the standards across programs and organizations may be accomplished through the AACN Healthy Work Environment Survey.

  19. Effect of Semi-Rigid and Soft Ankle Braces on Static and Dynamic Postural Stability in Young Male Adults

    PubMed Central

    Maeda, Noriaki; Urabe, Yukio; Tsutsumi, Shogo; Numano, Shuhei; Morita, Miho; Takeuchi, Takuya; Iwata, Shou; Kobayashi, Toshiki

    2016-01-01

    Ankle braces have been suggested to protect ankle joints from a sprain by restricting inversion and improving proprioception. However, the difference in effects between a semi-rigid brace and a soft brace regarding dynamic postural control after landing is not known. The aim of the present study was to compare the effect of soft (SB) and semi-rigid (SRB) ankle braces on static and dynamic postural stability in healthy young men. Altogether, 21 male adults (mean age 24.0 ± 1.5 years) were assessed for one leg while wearing non-brace (NB), SB or SRB. Balance in single-limb stance on a single-force platform with open eyes and closed eyes were assessed for the non-dominant leg under SB, SRB, and NB conditions. Locus length/second (mm/s) and the enveloped area (mm·s-2) surrounded by the circumference of the wave pattern during postural sway were calculated. For assessing dynamic postural stability, the participant jumped and landed on one leg on a force platform, and the Dynamic Postural Stability Index (DPSI) and the maximum vertical ground reaction force (vGRFmax) were measured. The data were compared among the three conditions with repeated-measures analysis of variance. The correlations between locus length/second, enveloped area, DPSI values (DPSI, Anterior-Posterior Stability Index, Medial-Lateral Stability Index, and Vertical Stability Index), and vGRFmax were then calculated. The results indicated that locus length/second and enveloped area with open eyes and closed eyes were not significantly different for each condition. However, a significant lower in the DPSI and Vertical Stability Index were observed with the SRB in comparison to the SB and NB. A significant improvement in vGRFmax was also observed with the SRB in comparison to NB. SRB demonstrated a positive effect on dynamic postural stability after landing on a single leg and may improve balance by increasing dynamic postural stability. Key points This study examined the effect of ankle braces on

  20. Fluoroscopic Analysis of Tibial Translation in Anterior Cruciate Ligament Injured Knees With and Without Bracing During Forward Lunge

    PubMed Central

    Jalali, Maryam; Farahmand, Farzam; Mousavi, Seyed Mohammad Ebrahim; Golestanha, Seyed Ali; Rezaeian, Tahmineh; Shirvani Broujeni, Shahram; Rahgozar, Mehdi; Esfandiarpour, Fateme

    2015-01-01

    Background: Despite several studies with different methods, the effect of functional knee braces on knee joint kinematics is not clear. Direct visualization of joint components through medical imaging modalities may provide the clinicians with more useful information. Objectives: In this study, for the first time in the literature, video fluoroscopy was used to investigate the effect of knee bracing on the sagittal plane kinematics of anterior cruciate ligament (ACL) injured patients. Patients and Methods: For twelve male unilateral ACL deficient subjects, the anterior tibial translation was measured during lunge exercise in non-braced and braced conditions. Fluoroscopic images were acquired from the subjects using a digital fluoroscopy system with a rate of 10 fps. The image of each frame was scaled using a calibration coin and analyzed in AutoCAD environment. The angle between the two lines, tangent to the posterior cortexes of the femoral and tibial shafts was measured as the flexion angle. For the fluoroscopic images associated with 0°, 15°, 30°, 45° and 60° knee flexion angles, the relative anterior-posterior configuration of the tibiofemoral joint was assessed by measuring the position of landmarks on the tibia and femur. Results: Results indicated that the overall anterior translations of the tibia during the eccentric (down) and concentric (up) phases of lunge exercise were 10.4 ± 1.7 mm and 9.0 ± 2.2 mm for non-braced, and 10.1 ± 3.4 mm and 7.4 ± 2.5 mm, for braced conditions, respectively. The difference of the tibial anterior-posterior translation behaviors of the braced and non-braced knees was not statistically significant. Conclusion: Fluoroscopic imaging provides an effective tool to measure the dynamic behavior of the knee joint in the sagittal plane and within the limitations of this study, the pure mechanical stabilizing effect of functional knee bracing is not sufficient to control the anterior tibial translation of the ACL deficient

  1. Assessment of buckling-restrained braced frame reliability using an experimental limit-state model and stochastic dynamic analysis

    NASA Astrophysics Data System (ADS)

    Andrews, Blake M.; Song, Junho; Fahnestock, Larry A.

    2009-09-01

    Buckling-restrained braces (BRBs) have recently become popular in the United States for use as primary members of seismic lateral-force-resisting systems. A BRB is a steel brace that does not buckle in compression but instead yields in both tension and compression. Although design guidelines for BRB applications have been developed, systematic procedures for assessing performance and quantifying reliability are still needed. This paper presents an analytical framework for assessing buckling-restrained braced frame (BRBF) reliability when subjected to seismic loads. This framework efficiently quantifies the risk of BRB failure due to low-cycle fatigue fracture of the BRB core. The procedure includes a series of components that: (1) quantify BRB demand in terms of BRB core deformation histories generated through stochastic dynamic analyses; (2) quantify the limit-state of a BRB in terms of its remaining cumulative plastic ductility capacity based on an experimental database; and (3) evaluate the probability of BRB failure, given the quantified demand and capacity, through structural reliability analyses. Parametric studies were conducted to investigate the effects of the seismic load, and characteristics of the BRB and BRBF on the probability of brace failure. In addition, fragility curves (i.e., conditional probabilities of brace failure given ground shaking intensity parameters) were created by the proposed framework. While the framework presented in this paper is applied to the assessment of BRBFs, the modular nature of the framework components allows for application to other structural components and systems.

  2. Effectiveness of Chêneau brace treatment for idiopathic scoliosis: prospective study in 79 patients followed to skeletal maturity

    PubMed Central

    2011-01-01

    Background Progressive idiopathic scoliosis can negatively influence the development and functioning of 2-3% of adolescents, with health consequences and economic costs, placing the disease in the centre of interest of the developmental medicine. The aim of this study was to evaluate the effectiveness of Chêneau brace in the management of idiopathic scoliosis. Methods A prospective observational study according to SOSORT and SRS recommendations comprised 79 patients (58 girls and 21 boys) with progressive idiopathic scoliosis, treated with Chêneau brace and physiotherapy, with initial Cobb angle between 20 and 45 degrees, no previous brace treatment, Risser 4 or more at the final evaluation and minimum one year follow-up after weaning the brace. Achieving 50° of Cobb angle was considered surgical recommendation. Results At follow-up 20 patients (25.3%) improved, 18 patients (22.8%) were stable, 31 patients (39.2%) progressed below 50 degrees and 10 patients (12.7%) progressed beyond 50 degrees (2 of these 10 patients progressed beyond 60 degrees). Progression concerned the younger and less skeletally mature patients. Conclusion Conservative treatment with Chêneau orthosis and physiotherapy was effective in halting scoliosis progression in 48.1% of patients. The results of this study suggest that bracing is effective in reducing the incidence of surgery in comparison with natural history. PMID:21266084

  3. Boston Public Schools K1 and K2 Programs Needs Assessment. Internal Report to the Department of Early Childhood, Boston Public Schools

    ERIC Educational Resources Information Center

    Marshall, Nancy L.; Roberts, Joanne; Mills, Linda

    2006-01-01

    The Boston Public Schools (BPS) Department of Early Childhood commissioned a needs assessment of current kindergarten (K2) and preschool (K1) programs (1) to inform the BPS Department of Early Childhood about professional development needs to improve the quality of existing K1 and K2 programs; and (2) to inform the Department of additional…

  4. Interactions between urban vegetation and surface urban heat islands: a case study in the Boston metropolitan region

    NASA Astrophysics Data System (ADS)

    Melaas, Eli K.; Wang, Jonathan A.; Miller, David L.; Friedl, Mark A.

    2016-05-01

    Many studies have used thermal data from remote sensing to characterize how land use and surface properties modify the climate of cities. However, relatively few studies have examined the impact of elevated temperature on ecophysiological processes in urban areas. In this paper, we use time series of Landsat data to characterize and quantify how geographic variation in Boston’s surface urban heat island (SUHI) affects the growing season of vegetation in and around the city, and explore how the quality and character of vegetation patches in Boston affect local heat island intensity. Results from this analysis show strong coupling between Boston’s SUHI and vegetation phenology at the scale of both individual landscape units and for the region as a whole, with significant detectable signatures in both surface temperature and growing season length extending 15 km from Boston’s urban core. On average, land surface temperatures were about 7 °C warmer and the growing season was 18-22 days longer in Boston relative to adjacent rural areas. Within Boston’s urban core, patterns of temperature and timing of phenology in areas with higher vegetation amounts (e.g., parks) were similar to those in adjacent rural areas, suggesting that vegetation patches provide an important ecosystem service that offsets the urban heat island at local scales. Local relationships between phenology and temperature were affected by the intensity of urban land use surrounding vegetation patches and possibly by the presence of exotic tree species that are common in urban areas. Results from this analysis show how species composition, land cover configuration, and vegetation patch sizes jointly influence the nature and magnitude of coupling between vegetation phenology and SUHIs, and demonstrate that urban vegetation provides a significant ecosystem service in cities by decreasing the local intensity of SUHIs.

  5. Synthesis, characterization, and fluorescent properties of two Pb(II) complexes: {l_brace}[Pb(hca){sub 2}.DMF].DMF{r_brace} {sub {infinity}} and [Pb(hca){sub 2}(phen).DMF]{sub 2}

    SciTech Connect

    Xu Qingfeng; Zhou Qiuxuan; Lu Jianmei Xia Xuewei; Zhang Yong

    2007-01-15

    Two novel Pb(II) complexes, {l_brace}[Pb(hca){sub 2}.DMF].DMF{r_brace} {sub {infinity}} and [Pb(hca){sub 2}(phen).DMF]{sub 2} (hca=trans-4-hydroxycinnamic group), were obtained by solid-phase reactions of PbAc{sub 2} and Hhca and PbAc{sub 2}, Hhca, and phen, respectively, and characterized by spectroscopy. X-ray crystallography analysis reveals that complex 1, {l_brace}[Pb(hca){sub 2}.DMF].DMF{r_brace} {sub {infinity}} , adopts a 2-dimensional structure through the weak interactions of Pb and O atoms and that complex 2, [Pb(hca){sub 2}(phen).DMF]{sub 2}, shows a discrete dimeric structure, in which hydrogen bonds link the dimers into a 2D network. Both complexes 1 and 2 show visible fluorescence and the intensity is stronger than that of the ligand. More interestingly, the intensity of emission was increased at least fivefolds when the pH of the solution was adjusted to alkalinity. This can be attributed to that the deprotonization of phenolic group enhancing the conjugation of the ligand hca. These results indicate that this method may be an effective way to increase the emission intensity of similar complexes. - Graphical abstract: Two novel Pb(II) complexes: {l_brace}[Pb(hca){sub 2}.DMF].DMF{r_brace}{sub {infinity}} and [Pb(hca){sub 2}(phen).DMF]{sub 2}, (hca = trans-4-hydroxycinnamic anion) were obtained and characterized. Their structures are also determined by X-ray crystal analysis. Both of complexes in DMF solution show visible fluorescence and the intensity is stronger than that of ligand. Their emission intensities are increased greatly in an alkaline solution of pH 8, which is due to the enhancement of the planar conjugation of ligand hca with the deprotonate of the phenolic group.

  6. Urbanization effects on stream habitat characteristics in Boston, Massachusetts; Birmingham, Alabama; and Salt Lake City, Utah

    USGS Publications Warehouse

    Short, T.M.; Giddings, E.M.P.; Zappia, H.; Coles, J.F.

    2005-01-01

    Relations between stream habitat and urban land-use intensity were examined in 90 stream reaches located in or near the metropolitan areas of Salt Lake City, Utah (SLC); Birmingham, Alabama (BIR); and Boston, Massachusetts (BOS). Urban intensity was based on a multi-metric index (urban intensity index or UII) that included measures of land cover, socioeconomic organization, and urban infrastructure. Twenty-eight physical variables describing channel morphology, hydraulic properties, and streambed conditions were examined. None of the habitat variables was significantly correlated with urbanization intensity in all three study areas. Urbanization effects on stream habitat were less apparent for streams in SLC and BIR, owing to the strong influence of basin slope (SLC) and drought conditions (BIR) on local flow regimes. Streamflow in the BOS study area was not unduly influenced by similar conditions of climate and physiography, and habitat conditions in these streams were more responsive to urbanization. Urbanization in BOS contributed to higher discharge, channel deepening, and increased loading of fine-grained particles to stream channels. The modifying influence of basin slope and climate on hydrology of streams in SLC and BIR limited our ability to effectively compare habitat responses among different urban settings and identify common responses that might be of interest to restoration or water management programs. Successful application of land-use models such as the UII to compare urbanization effects on stream habitat in different environmental settings must account for inherent differences in natural and anthropogenic factors affecting stream hydrology and geomorphology. The challenge to future management of urban development is to further quantify these differences by building upon existing models, and ultimately develop a broader understanding of urbanization effects on aquatic ecosystems. ?? 2005 by the American Fisheries Society.

  7. Population admixture associated with disease prevalence in the Boston Puerto Rican health study.

    PubMed

    Lai, Chao-Qiang; Tucker, Katherine L; Choudhry, Shweta; Parnell, Laurence D; Mattei, Josiemer; García-Bailo, Bibiana; Beckman, Kenny; Burchard, Esteban González; Ordovás, José M

    2009-03-01

    Older Puerto Ricans living in the continental U.S. suffer from higher rates of diabetes, obesity, cardiovascular disease and depression compared to non-Hispanic White populations. Complex diseases, such as these, are likely due to multiple, potentially interacting, genetic, environmental and social risk factors. Presumably, many of these environmental and genetic risk factors are contextual. We reasoned that racial background may modify some of these risk factors and be associated with health disparities among Puerto Ricans. The contemporary Puerto Rican population is genetically heterogeneous and originated from three ancestral populations: European settlers, native Taíno Indians, and West Africans. This rich-mixed ancestry of Puerto Ricans provides the intrinsic variability needed to untangle complex gene-environment interactions in disease susceptibility and severity. Herein, we determined whether a specific ancestral background was associated with either of four major disease outcomes (diabetes, obesity, cardiovascular disease, and depression). We estimated the genetic ancestry of 1,129 subjects from the Boston Puerto Rican Health Study based on genotypes of 100 ancestry informative markers (AIMs). We examined the effects of ancestry on tests of association between single AIMs and disease traits. The ancestral composition of this population was 57.2% European, 27.4% African, and 15.4% Native American. African ancestry was negatively associated with type 2 diabetes and cardiovascular disease, and positively correlated with hypertension. It is likely that the high prevalence rate of diabetes in Africans, Hispanics, and Native Americans is not due to genetic variation alone, but to the combined effects of genetic variation interacting with environmental and social factors.

  8. A novel nutrition medicine education model: the Boston University experience.

    PubMed

    Lenders, Carine; Gorman, Kathy; Milch, Hannah; Decker, Ashley; Harvey, Nanette; Stanfield, Lorraine; Lim-Miller, Aimee; Salge-Blake, Joan; Judd, Laura; Levine, Sharon

    2013-01-01

    Most deaths in the United States are preventable and related to nutrition. Although physicians are expected to counsel their patients about nutrition-related health conditions, a recent survey reported minimal improvements in nutrition medicine education in US medical schools in the past decade. Starting in 2006, we have developed an educational plan using a novel student-centered model of nutrition medicine education at Boston University School of Medicine that focuses on medical student-mentored extracurricular activities to develop, evaluate, and sustain nutrition medicine education. The medical school uses a team-based approach focusing on case-based learning in the classroom, practice-based learning in the clinical setting, extracurricular activities, and a virtual curriculum to improve medical students' knowledge, attitudes, and practice skills across their 4-y period of training. We have been using objectives from the NIH National Academy Awards guide and tools from the Association of American Medical Colleges to detect new areas of nutrition medicine taught at the medical school. Although we were only able to identify 20.5 h of teaching in the preclerkship years, we observed that most preclerkship nutrition medicine objectives were covered during the course of the 4-y teaching period, and extracurricular activities provided new opportunities for student leadership and partnership with other health professionals. These observations are very encouraging as new assessment tools are being developed. Future plans include further evaluation and dissemination of lessons learned using this model to improve public health wellness with support from academia, government, industry, and foundations.

  9. Oral health among residents of publicly supported housing in Boston.

    PubMed

    Maxwell, Nancy Irwin; Shah, Snehal; Dooley, Daniel; Henshaw, Michelle; Bowen, Deborah J

    2014-08-01

    Tooth loss in adults diminishes quality of daily life, affecting eating, speaking, appearance, and social interactions. Tooth loss is linked to severe periodontitis and caries; and to risk of stroke, cardiovascular disease, rheumatoid arthritis, and dementia. At the national (USA) level, poverty and African-American race have been linked to lower utilization of dental services, suggesting that the 7.5 million residents of publicly supported housing may be at risk of tooth loss and poor overall oral health. We assessed whether residence in publicly supported housing in Boston was associated with four oral health-related indicators. Compared to residents of nonpublicly supported housing, after adjusting for covariates residents of both public housing developments (PHDs) and rental assistance units (RAUs) had significantly lower odds of having had a dental cleaning in the past year (PHD, OR = 0.64 (95 % CI, 0.44-0.93); RAU, OR = 0.67 (95 % CI, 0.45-0.99))-despite parity in having had a past year dental visit. Further, residents of RAUs had double the odds of having had six or more teeth removed (OR = 2.20 (95 % CI, 1.39-3.50)). Associations of race/ethnicity and housing type with dental insurance were interrelated. Unadjusted results document a deficit in oral health-related indicators among public housing residents, taken as a group, giving a clear picture of an oral health care gap and identifying a defined real-world population that could benefit from services. Existing public housing infrastructure could provide both a venue and a foundation for interventions to reduce oral health disparities on a broad scale.

  10. Modeling tidal exchange and dispersion in Boston Harbor

    USGS Publications Warehouse

    Signell, Richard P.; Butman, Bradford

    1992-01-01

    Tidal dispersion and the horizontal exchange of water between Boston Harbor and the surrounding ocean are examined with a high-resolution (200 m) depth-averaged numerical model. The strongly varying bathymetry and coastline geometry of the harbor generate complex spatial patterns in the modeled tidal currents which are verified by shipboard acoustic Doppler surveys. Lagrangian exchange experiments demonstrate that tidal currents rapidly exchange and mix material near the inlets of the harbor due to asymmetry in the ebb/flood response. This tidal mixing zone extends roughly a tidal excursion from the inlets and plays an important role in the overall flushing of the harbor. Because the tides can only efficiently mix material in this limited region, however, harbor flushing must be considered a two step process: rapid exchange in the tidal mixing zone, followed by flushing of the tidal mixing zone by nontidal residual currents. Estimates of embayment flushing based on tidal calculations alone therefore can significantly overestimate the flushing time that would be expected under typical environmental conditions. Particle-release simulations from point sources also demonstrate that while the tides efficiently exchange material in the vicinity of the inlets, the exact nature of dispersion from point sources is extremely sensitive to the timing and location of the release, and the distribution of particles is streaky and patchlike. This suggests that high-resolution modeling of dispersion from point sources in these regions must be performed explicitly and cannot be parameterized as a plume with Gaussian-spreading in a larger scale flow field.

  11. A novel nutrition medicine education model: the Boston University experience.

    PubMed

    Lenders, Carine; Gorman, Kathy; Milch, Hannah; Decker, Ashley; Harvey, Nanette; Stanfield, Lorraine; Lim-Miller, Aimee; Salge-Blake, Joan; Judd, Laura; Levine, Sharon

    2013-01-01

    Most deaths in the United States are preventable and related to nutrition. Although physicians are expected to counsel their patients about nutrition-related health conditions, a recent survey reported minimal improvements in nutrition medicine education in US medical schools in the past decade. Starting in 2006, we have developed an educational plan using a novel student-centered model of nutrition medicine education at Boston University School of Medicine that focuses on medical student-mentored extracurricular activities to develop, evaluate, and sustain nutrition medicine education. The medical school uses a team-based approach focusing on case-based learning in the classroom, practice-based learning in the clinical setting, extracurricular activities, and a virtual curriculum to improve medical students' knowledge, attitudes, and practice skills across their 4-y period of training. We have been using objectives from the NIH National Academy Awards guide and tools from the Association of American Medical Colleges to detect new areas of nutrition medicine taught at the medical school. Although we were only able to identify 20.5 h of teaching in the preclerkship years, we observed that most preclerkship nutrition medicine objectives were covered during the course of the 4-y teaching period, and extracurricular activities provided new opportunities for student leadership and partnership with other health professionals. These observations are very encouraging as new assessment tools are being developed. Future plans include further evaluation and dissemination of lessons learned using this model to improve public health wellness with support from academia, government, industry, and foundations. PMID:23319117

  12. 19. 'Transverse Bracing, 3 180'61/2' c. to c. End ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    19. 'Transverse Bracing, 3 - 180'-6-1/2' c. to c. End Pins Sing. Tr. Thro' Spans, C.O. 839 10th Crossing Sacramento River, C.O. 840 11th Crossing Sacramento River, C.O. 841 13th Crossing Sacramento River, Sacramento Division, So. Pac. Co., The Phoenix Bridge Co., C.O's. 839, 840 & 841, Drawing #4, Eng'r - C. Scheidl, Draftsman - B. Heald, Scale 1' = 1'-0', April 13th 1901.' - Southern Pacific Railroad Shasta Route, Bridge No. 310.58, Milepost 310.58, Sims, Shasta County, CA

  13. Functional bracing for comminuted extra-articular fractures of the distal third of the humerus.

    PubMed

    Sarmiento, A; Horowitch, A; Aboulafia, A; Vangsness, C T

    1990-03-01

    From 1982 to 1987 we treated 85 extra-articular comminuted distal third humeral fractures in adults with prefabricated plastic braces. Of these, 15% were open fractures and 18% had initial peripheral nerve injury. On average, the sleeve was applied 12 days after injury and used for 10 weeks. There was 96% union, with no infections. All nerve injuries resolved or were improving at the latest examination. At union there was varus deformity averaging 9 degrees in 81% of patients, but loss of range of movement was minimal and functional results were good.

  14. In search of the Boston Strangler: genetic evidence from the exhumation of Mary Sullivan.

    PubMed

    Foran, David R; Starrs, James E

    2004-01-01

    The Boston Strangler was one of the United States' most notorious serial killers, raping and strangling with decorative ligatures thirteen woman in Boston during the early 1960s. Albert DeSalvo, never a suspect in the slayings, confessed in prison (where he was later murdered) to being the Boston Strangler, and the investigation largely ended. Mary Sullivan was the last victim of the Boston Strangler, found sexually assaulted and strangled in her Boston apartment in 1964. Recently, a team of forensic scientists undertook the exhumation and subsequent scientific analysis of Mary Sullivan's remains, in hope of finding consistencies or inconsistencies between DeSalvo's confessed description of the murder and any evidence left behind. Included in these analyses was extensive DNA testing of all UV fluorescent material associated with the body. The large majority of results were negative, however, fluorescent material located on the underwear and entwined in her pubic hair generated two human mitochondrial DNA sequences. Neither of these matched the victim nor members of the forensic team who worked on the evidence. Most importantly, neither DNA sequence could have originated from Albert DeSalvo.

  15. Development and testing of a magnetorheological actuator for an assistive knee brace

    NASA Astrophysics Data System (ADS)

    Chen, Jinzhou; Liao, Wei-Hsin

    2008-03-01

    This paper proposes an assistive knee brace that is aimed to provide assistance to old or disabled people. A magnetorheological (MR) actuator is developed to be used in assistive knee braces to provide controllable torque. The MR actuator consists of a DC motor and an MR brake/clutch. When active torque is needed, the DC motor works and the MR actuator functions as a clutch to transfer the torque generated by the motor to the leg; when passive torque is desired, the DC motor is turned off and the MR actuator functions as a brake to provide controllable passive torque. The prototype of this MR actuator is fabricated and experiments are carried out to investigate the characteristics of the MR actuator. The results show that the MR actuator is able to provide sufficient torque needed for normal human activities. Adaptive control is proposed for controlling the MR actuator. Experiments of the MR actuator under control are performed to study the torque tracking ability of the system.

  16. Design, testing and control of a magnetorheological actuator for assistive knee braces

    NASA Astrophysics Data System (ADS)

    Chen, J. Z.; Liao, W. H.

    2010-03-01

    This paper is aimed at developing a smart actuator for assistive knee braces to provide assistance to disabled or elderly people with mobility problems. A magnetorheological (MR) actuator is developed to be used in assistive knee braces to provide controllable torque. The MR actuator can work as a brake or a clutch. When active torque is needed, the DC motor works and the MR actuator functions as a clutch to transfer the torque generated by the motor to the leg; when passive torque is desired, the DC motor is turned off and the MR actuator functions as a brake to provide controllable passive torque. The prototype of the developed MR actuator is fabricated and experiments are carried out to investigate the characteristics of the MR actuator. The results show that the MR actuator is able to provide sufficient torque needed for normal human activities. Adaptive control is proposed for controlling the MR actuator. Anti-windup strategy is used to achieve better control performance. Experiments on the MR actuator under control are also performed to study the torque tracking ability of the system.

  17. Scoliosis bracing and exercise for pain management in adults—a case report

    PubMed Central

    Weiss, Hans-Rudolf; Moramarco, Kathryn; Moramarco, Marc

    2016-01-01

    [Purpose] For adult patients with late-onset idiopathic scoliosis, cosmetic concerns and pain are the main reasons for seeking treatment at a physician’s office. The purpose of this paper was to describe the mid-term effect of physical rehabilitation and part-time bracing on an adult scoliosis patient who had been suffering from chronic low back pain for fourteen years. [Subject and Methods] Case description: A 37-year-old female patient with late-onset idiopathic scoliosis presented in the office of the first author in January 2014. She reported having chronic pain (low back pain) since the age of 23 and reported daily pain at a level of 5–7 on average on a Visual Analogue Scale of 0 to 10. She received a short scoliosis-specific Schroth exercise program and was also fitted with a Gensingen brace for part-time wear. [Results] At a 16 month follow-up, the patient no longer suffered from daily low back pain (with heavy lifting only) and was fully active. Additionally, her lumbar Cobb angle and angle of trunk rotation improved. [Conclusion] Patients with late-onset idiopathic scoliosis and pain may benefit from a pattern-specific conservative treatment approach. In this population, surgical intervention should be regarded as the last resort, since there are many long-term unknowns with surgery. PMID:27630444

  18. Mathematical modeling and full-scale shaking table tests for multi-curve buckling restrained braces

    NASA Astrophysics Data System (ADS)

    Tsai, C. S.; Lin, Yungchang; Chen, Wenshin; Su, H. C.

    2009-09-01

    Buckling restrained braces (BRBs) have been widely applied in seismic mitigation since they were introduced in the 1970s. However, traditional BRBs have several disadvantages caused by using a steel tube to envelope the mortar to prevent the core plate from buckling, such as: complex interfaces between the materials used, uncertain precision, and time consumption during the manufacturing processes. In this study, a new device called the multi-curve buckling restrained brace (MC-BRB) is proposed to overcome these disadvantages. The new device consists of a core plate with multiple neck portions assembled to form multiple energy dissipation segments, and the enlarged segment, lateral support elements and constraining elements to prevent the BRB from buckling. The enlarged segment located in the middle of the core plate can be welded to the lateral support and constraining elements to increase buckling resistance and to prevent them from sliding during earthquakes. Component tests and a series of shaking table tests on a full-scale steel structure equipped with MC-BRBs were carried out to investigate the behavior and capability of this new BRB design for seismic mitigation. The experimental results illustrate that the MC-BRB possesses a stable mechanical behavior under cyclic loadings and provides good protection to structures during earthquakes. Also, a mathematical model has been developed to simulate the mechanical characteristics of BRBs.

  19. Flexible Wing Model for Structural Sizing and Multidisciplinary Design Optimization of a Strut-Braced Wing

    NASA Technical Reports Server (NTRS)

    Gern, Frank H.; Naghshineh, Amir H.; Sulaeman, Erwin; Kapania, Rakesh K.; Haftka, Raphael T.

    2000-01-01

    This paper describes a structural and aeroelastic model for wing sizing and weight calculation of a strut-braced wing. The wing weight is calculated using a newly developed structural weight analysis module considering the special nature of strut-braced wings. A specially developed aeroelastic model enables one to consider wing flexibility and spanload redistribution during in-flight maneuvers. The structural model uses a hexagonal wing-box featuring skin panels, stringers, and spar caps, whereas the aerodynamics part employs a linearized transonic vortex lattice method. Thus, the wing weight may be calculated from the rigid or flexible wing spanload. The calculations reveal the significant influence of the strut on the bending material weight of the wing. The use of a strut enables one to design a wing with thin airfoils without weight penalty. The strut also influences wing spanload and deformations. Weight savings are not only possible by calculation and iterative resizing of the wing structure according to the actual design loads. Moreover, as an advantage over the cantilever wing, employment of the strut twist moment for further load alleviation leads to increased savings in structural weight.

  20. Experimental study on the seismic response of braced reinforced concrete frame with irregular columns

    NASA Astrophysics Data System (ADS)

    Xiao, Jianzhuang; Li, Jie; Chen, Jun

    2011-12-01

    A 15-storey K-braced reinforced concrete model frame with irregular columns, i.e., T-shaped, L-shaped, as well as +-shaped columns, was constructed and tested on the six-degree-of-freedom shaking table at the State Key Laboratory for Disaster Reduction in Civil Engineering in Tongji, China. Two types of earthquake records, El-Centro wave (south-north direction) and Shanghai artifi cial wave (SHAW) with various peak accelerations and principal-secondary sequences, were input and experimentally studied. Based on the shaking table tests and theoretical analysis, several observations can be made. The failure sequence of the model structure is brace→beam→column→joints, so that the design philosophy for several lines of defense has been achieved. Earthquake waves with different spectrums not only infl uence the magnitude and distribution of the earthquake force and the storey shear force, but also obviously affect the magnitude of the displacement response. The aftershock seismic response of previously damaged reinforced concrete braced frames with irregular columns possesses the equivalent elastic performance characteristic. Generally speaking, from the aspects of failure features and drift ratio, this type of reinforced concrete structure provides adequate earthquake resistance and can be promoted for use in China.

  1. Design and analysis of eccentrically braced steel frames with vertical links using shape memory alloys

    NASA Astrophysics Data System (ADS)

    Massah, Saeed Reza; Dorvar, Hosein

    2014-10-01

    In recent years, the philosophy behind traditional methods by which structures were designed to withstand natural disasters has gone through major changes. Shape memory alloys (SMAs) are characterized by their superelastic behavior, which enables them to recover their original shape after experiencing large deformations. This characteristic provides an ideal reversibility capacity that can be used in the passive control of buildings exposed to earthquakes. This article has attempted to identify the effects of changing the hysteretic characteristics of SMA materials when they are used as passive control systems in eccentric bracing frames. By evaluating the numerical analysis results obtained from the modeling of an experimental sample and the modeling of the proposed EBF system, the accuracy of the above-stated notion was confirmed. Moreover, the results that pertain to the nonlinear pushover analysis, time-history dynamic analysis and seismic damage analysis of eccentric steel bracing frames of 4-, 9- and 14-story structures indicate that the use of SMA superelastic materials, in addition to effectively improving their ductility, stiffness and lateral strength, provides an excellent reversibility capacity, which considerably reduces both the maximum relative displacement and the residual deformation in the structure.

  2. Scoliosis bracing and exercise for pain management in adults—a case report

    PubMed Central

    Weiss, Hans-Rudolf; Moramarco, Kathryn; Moramarco, Marc

    2016-01-01

    [Purpose] For adult patients with late-onset idiopathic scoliosis, cosmetic concerns and pain are the main reasons for seeking treatment at a physician’s office. The purpose of this paper was to describe the mid-term effect of physical rehabilitation and part-time bracing on an adult scoliosis patient who had been suffering from chronic low back pain for fourteen years. [Subject and Methods] Case description: A 37-year-old female patient with late-onset idiopathic scoliosis presented in the office of the first author in January 2014. She reported having chronic pain (low back pain) since the age of 23 and reported daily pain at a level of 5–7 on average on a Visual Analogue Scale of 0 to 10. She received a short scoliosis-specific Schroth exercise program and was also fitted with a Gensingen brace for part-time wear. [Results] At a 16 month follow-up, the patient no longer suffered from daily low back pain (with heavy lifting only) and was fully active. Additionally, her lumbar Cobb angle and angle of trunk rotation improved. [Conclusion] Patients with late-onset idiopathic scoliosis and pain may benefit from a pattern-specific conservative treatment approach. In this population, surgical intervention should be regarded as the last resort, since there are many long-term unknowns with surgery.

  3. Designing Serious Games for Safety Education: "Learn to Brace" versus Traditional Pictorials for Aircraft Passengers.

    PubMed

    Chittaro, Luca

    2016-05-01

    Serious games for safety education (SGSE) are a novel tool for preparing people to prevent and\\or handle risky situations. Although several SGSE have been developed, design and evaluation methods for SGSE need to be better grounded in and guided by safety-relevant psychological theories. In particular, this paper focuses on threat appeals and the assessment of variables, such as safety locus of control, that influence human behavior in real risky situations. It illustrates how we took into account such models in the design and evaluation of "Learn to Brace", a first-of-its-kind serious game that deals with a major problem in aviation safety, i.e. the scarce effectiveness of the safety cards used by airlines. The study considered a sample of 48 users: half of them received instructions about the brace position through the serious game, the other half through a traditional safety card pictorial. Results showed that the serious game was much more effective than the traditional instructions both in terms of learning and of changing safety-relevant perceptions, especially safety locus of control and recommendation perception. PMID:27045909

  4. Designing Serious Games for Safety Education: "Learn to Brace" versus Traditional Pictorials for Aircraft Passengers.

    PubMed

    Chittaro, Luca

    2016-05-01

    Serious games for safety education (SGSE) are a novel tool for preparing people to prevent and\\or handle risky situations. Although several SGSE have been developed, design and evaluation methods for SGSE need to be better grounded in and guided by safety-relevant psychological theories. In particular, this paper focuses on threat appeals and the assessment of variables, such as safety locus of control, that influence human behavior in real risky situations. It illustrates how we took into account such models in the design and evaluation of "Learn to Brace", a first-of-its-kind serious game that deals with a major problem in aviation safety, i.e. the scarce effectiveness of the safety cards used by airlines. The study considered a sample of 48 users: half of them received instructions about the brace position through the serious game, the other half through a traditional safety card pictorial. Results showed that the serious game was much more effective than the traditional instructions both in terms of learning and of changing safety-relevant perceptions, especially safety locus of control and recommendation perception.

  5. Prophylactic ankle bracing vs. taping: effects on functional performance in female basketball players.

    PubMed

    MacKean, L C; Bell, G; Burnham, R S

    1995-08-01

    Ankle support devices are commonly used for prevention and treatment of ankle injury, but the effect of these on sport performance has not been evaluated. The purpose of this study was to evaluate the effect of different ankle support devices on four basketball-related performance tests. Eleven female basketball players underwent four performance tests (vertical jump, jump shot, sprint drill, and submaximal treadmill run) while wearing five different types of ankle support on both ankles (no support, tape, Swede-O-Universal, Active Ankle, and Aircast). Ankle support effect on overall performance was assessed using Friedman's analysis of variance (ANOVA) by ranks and on specific performance parameters using one-way ANOVA for repeated measures. Overall performance was impaired by ankle support. The Active Ankle brace impaired performance the least out of the support devices. Vertical jump was less with ankle tape as compared with no tape (p < .05), whereas jump shot accuracy was better with tape as compared with the Swede-O-Universal (p < .05). Oxygen consumption (VO2) and energy expenditure were higher with the Aircast as compared with tape (p < .05). It was concluded that the use of ankle support by female basketball players does adversely affect basketball-related performance tests, and the prophylactic benefit of bracing needs to be weighed against performance impairment.

  6. From Forced Tolerance to Forced Busing: Wartime Intercultural Education and the Rise of Black Educational Activism in Boston

    ERIC Educational Resources Information Center

    Burkholder, Zoe

    2010-01-01

    In this article, Zoe Burkholder explores the historical interplay of the emergence of tolerance education in the United States and the rise of black educational activism in Boston. By uncovering a pointed lack of tolerance education in Boston and a widespread promotion of tolerance education in other cities in the early half of the twentieth…

  7. 75 FR 38411 - Drawbridge Operation Regulations; Chelsea River, Chelsea and East Boston, MA, Event-Road Race

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-02

    ... Boston, MA, Event--Road Race AGENCY: Coast Guard, DHS. ACTION: Notice of temporary deviation from... Chelsea River Revel 5K Road Race. DATES: This deviation is effective from 8 a.m. through 5 p.m. on July 24... Boston, requested a temporary deviation to facilitate a public event, the Chelsea River Revel 5K...

  8. An Integrated Model of Care: A Visit to The SPARK Center, a Program of Boston Medical Center

    ERIC Educational Resources Information Center

    Griest, Christa

    2010-01-01

    This article features The SPARK Center, a program of Boston Medical Center, located in Mattapan, Massachusetts. The Center has pioneered a whole-child approach to address the multi-dimensional needs of Boston's most at-risk children, recognizing that vulnerable children need more than educational supports to flourish. The Center's integrated model…

  9. 75 FR 42814 - Boston & Maine Corporation―Abandonment Exemption―in Essex, Middlesex, and Suffolk Counties, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-22

    ... Surface Transportation Board Boston & Maine Corporation Abandonment Exemption in Essex, Middlesex, and Suffolk Counties, MA Boston & Maine Corporation (B&M) filed a verified notice of exemption under 49 CFR pt... Counties, Mass. The line traverses United States Postal Service Zip Codes 02149, 02151, 02148, 01905,...

  10. Halo brace

    MedlinePlus

    ... your hands with soap and water. Dip a cotton swab into a skin-cleaning solution, such as ... or another antiseptic your provider recommends. Use the cotton swab to wipe and scrub around one pin ...

  11. Lessons Learned from the Bay Region Atmospheric Chemistry Experiment (BRACE) and Implications for Nitrogen Management of Tampa Bay

    EPA Science Inventory

    Results from air quality modeling and field measurements made as part of the Bay Region Atmospheric Chemistry Experiment (BRACE) along with related scientific literature were reviewed to provide an improved estimate of atmospheric reactive nitrogen (N) deposition to Tampa Bay, to...

  12. Stressing on the human femoro-patellar joint. I. Components of a vertical and horizontal tensile bracing system.

    PubMed

    Blauth, M; Tillmann, B

    1983-01-01

    Horizontal and vertical tensions act on the femoropatellar joint. In both knee joints of 60 human corpses the muscles and ligaments participating in the tensile bracing of the knee joint were studied macroscopically. While the structures acting in the vertical direction are very constant, the components participating in horizontal tensile bracing show large variations. Components of vertical tensile bracing are the quadriceps femoris muscle, the ligamentum patellae as well as the vertical patellar retinacula. The active part of horizontal tensile bracing consists of the medial and lateral vastus muscles. The passive components of this system are arranged in three layers. The superficial layer is formed by the fascia lata. The middle layer consists of the horizontal retinacula. A medial horizontal retinaculum was present in one third of our cases. It passes from the medial margin of the patella towards the medial femoral epicondyle. A lateral horizontal retinaculum is demonstrable in all cases studied. It passes horizontally from the lateral margin of the patella and inserts into the deep layer of the iliotibial tract. Insertion of the lateral horizontal retinaculum into the lateral femoral epicondyle was not observed in our material. The third layer is formed by ligaments supporting the joint capsule. These originate from the medial and lateral margin of the patella and pass towards their respective meniscus as well as variably towards the femoral or tibial condyle. These structures are found both medially and laterally in two thirds of the cases studied. PMID:6650852

  13. Results of TLMRC research on x-bracing strength in lattice transmission towers. [Transmission Line Mechanical Research Center

    SciTech Connect

    Cannon, D.D. Jr.; Nickerson, R. )

    1993-01-01

    The generally accepted procedures for designing lattice transmission towers in the US are those given in the American Society of Civil Engineers (ASCE) guide, Guide for Design of Steel Transmission Towers (ASCE Manual 52). When the ASCE Task Committee on updating Manual 52 was active prior to publishing the second edition, a topic of discussion and disagreement was the calculation of the strength of X-bracing members. The primary point of disagreement was the effect of the tension member load on the support offered to the compression member and how this should be accounted for in calculating the capacity of the compression member. To clarify the design of X-bracing, EPRI's Transmission Line Mechanical Research Center (TLMRC) initiated a research program to study the strength of X-bracing, with particular emphasis on the effect of the tension member load on the capacity of the compression member. A two-dimensional test frame was used to test X-braces constructed of equal leg angles, unequal leg angles framed either on the long le or on the short leg.

  14. Kinematic Magnetic Resonance Imaging of the Effect of Bracing on Patellar Position: Qualitative Assessment Using an Extremity Magnetic Resonance System

    PubMed Central

    Shellock, Frank G.; Mullin, Michael; Stone, Kevin R.; Coleman, Mark; Crues, John V.

    2000-01-01

    Objective: To use an extremity magnetic resonance system to perform kinematic magnetic resonance imaging (MRI) of the patellofemoral joint to qualitatively assess the effect of bracing on patellar position. Design and Setting: Subjects underwent kinematic MRI of the symptomatic extremity with a 0.2-Tesla extremity magnetic resonance system. Images were obtained using a knee coil and a T1-weighted, spin echo pulse sequence. Subjects: Seven female patients with patellofemoral joint symptoms. Measurements: Four different axial sections were obtained for each position: extension and 3 positions of flexion up to 36°. An appropriate-sized patellofemoral brace was applied, and the kinematic MRI procedure was repeated. Results: Six patients had lateral displacement of the patella, and 1 patient had medial displacement of the patella. After application of the brace, 6 patients (5 with lateral displacement and 1 with medial displacement, 86%) exhibited correction (5) or improvement (1 with lateral displacement) in the abnormal patellar positions, and 1 patient had worsening of the abnormal position of the patella. Conclusions: We used kinematic MRI to determine the presence of abnormal patellar positioning. Application of the brace counteracted the abnormal patellar positions in most of the patients studied. ImagesFigure 2.Figure 3. PMID:16558607

  15. Body Image and Quality-of-Life in Untreated Versus Brace-Treated Females With Adolescent Idiopathic Scoliosis

    PubMed Central

    Schwieger, Traci; Campo, Shelly; Weinstein, Stuart L.; Dolan, Lori A.; Ashida, Sato; Steuber, Keli R.

    2016-01-01

    Study Design. The Bracing in Adolescent Idiopathic Scoliosis Trial (BrAIST) included skeletally immature high-risk patients with adolescent idiopathic scoliosis (AIS) with moderate curve sizes (20°– 40°). BrAIST was a multicenter, controlled trial using both randomized and preference treatment arms into either an observation group or a brace treatment group. Objective. The aim of this study was to analyze and compare body image and quality-of-life (QOL) in female AIS patients who were observed or treated with a brace. Summary of Background Data. Brace treatment is an effective means for controlling progressive scoliosis and preventing the need for surgery, but there is no consensus regarding the effect of brace treatment on body image or on QOL in adolescents with AIS. Methods. Data from female BrAIST patients in the randomized (n = 132) or preference (n = 187) arms and were observed (n = 120) or brace treated (n = 199) were analyzed. Patients completed the Spinal Appearance Questionnaire (SAQ) and the Pediatric Quality of Life Inventory (PedsQOL) 4.0 Generic Scales at baseline and 6 month follow-up visits up to 2 years. Items on the SAQ measured three body image constructs (self, ideal, and overall). The PedsQOL measured health, activities, feelings, social factors, and school. Results. . In general, there were no significant differences within or between study arms or treatments regarding body image or QOL through 2 years of follow-up. Poorer body image was significantly correlated with poorer QOL during the first 2 years of follow-up regardless of study arm or treatment. Patients who crossed-over to a different treatment and patients with largest Cobb angles ≥ 40 degrees had significantly poorer body image, in particular self-body image, compared with those that did not. Conclusion. This study does not support findings from previous research indicating that wearing a brace has a negative impact on or is negatively impacted by body image or

  16. Accounting for multiple sources of uncertainty in impact assessments: The example of the BRACE study

    NASA Astrophysics Data System (ADS)

    O'Neill, B. C.

    2015-12-01

    Assessing climate change impacts often requires the use of multiple scenarios, types of models, and data sources, leading to a large number of potential sources of uncertainty. For example, a single study might require a choice of a forcing scenario, climate model, bias correction and/or downscaling method, societal development scenario, model (typically several) for quantifying elements of societal development such as economic and population growth, biophysical model (such as for crop yields or hydrology), and societal impact model (e.g. economic or health model). Some sources of uncertainty are reduced or eliminated by the framing of the question. For example, it may be useful to ask what an impact outcome would be conditional on a given societal development pathway, forcing scenario, or policy. However many sources of uncertainty remain, and it is rare for all or even most of these sources to be accounted for. I use the example of a recent integrated project on the Benefits of Reduced Anthropogenic Climate changE (BRACE) to explore useful approaches to uncertainty across multiple components of an impact assessment. BRACE comprises 23 papers that assess the differences in impacts between two alternative climate futures: those associated with Representative Concentration Pathways (RCPs) 4.5 and 8.5. It quantifies difference in impacts in terms of extreme events, health, agriculture, tropical cyclones, and sea level rise. Methodologically, it includes climate modeling, statistical analysis, integrated assessment modeling, and sector-specific impact modeling. It employs alternative scenarios of both radiative forcing and societal development, but generally uses a single climate model (CESM), partially accounting for climate uncertainty by drawing heavily on large initial condition ensembles. Strengths and weaknesses of the approach to uncertainty in BRACE are assessed. Options under consideration for improving the approach include the use of perturbed physics

  17. Performance of Healthy Braced Participants During Aerobic and Anaerobic Capacity Tasks

    PubMed Central

    Rishiraj, Neetu; Taunton, Jack E.; Niven, Brian; Lloyd-Smith, Robert; Regan, William; Woollard, Robert

    2011-01-01

    Context: Knee braces were introduced in sports approximately 30 years ago. However, the effects of a functional knee brace (FKB) on aerobic and anaerobic performance after fatigue are unknown. Objective: To investigate whether FKB use in noninjured participants hindered performance during aerobic (Léger beep test) and anaerobic (repeated high-intensity shuttle test [RHIST]) tasks. Design: Crossover study. Setting: Laboratory. Patients or Other Participants: Twenty-seven healthy male provincial and national basketball and field hockey athletes (age = 19.4 ± 3.0 years, range, 17–26 years; height = 182.6 ± 6.8 cm, range, 168–196 cm; mass = 80.0 ± 9.1 kg, range, 66–108 kg). Interventions : Each participant was provided a custom-fitted FKB and performed 5 nonbraced (NBR) testing sessions over 3 days, followed by 5 braced (BR) testing sessions over 3 days, for a total of 17.5 hours of testing per condition. During each testing session, participants performed 1 trial of the Léger beep test and 1 trial of the RHIST in each condition. Main Outcome Measure(s): Predicted maximal oxygen consumption (V˙o2max) and time performance measures were recorded for each NBR and BR trial. Results: Initial performance levels were lower for BR than NBR for both the Léger beep test (BR = 44.3 mL/kg/min, NBR = 47.3 mL/kg/min; F1,26 = 8.726; P = .007) and the RHIST (BR = 16.5 seconds, NBR = 16.2 seconds; F1,26 = 13.98, P = .001). However, with continued FKB use, the aerobic performance measure remained higher for only the first 2 BR testing sessions (NBR = 46.9 mL/kg/min, BR = 42.4 mL/kg/min; F3.0,79.8 = 4.95, P = .003). For the anaerobic test, no performance difference was noted between the testing conditions (NBR = 16.2 seconds, BR = 16.4 seconds; P = .7), whereas fatigue levels were lower during BR testing sessions (NBR = 33%, BR = 31%). After 14.0 hours of FKB use, performance levels were almost equal between the testing conditions (NBR = 47.6 mL/kg/min, BR = 46.1 m

  18. Earth Sciences at Boston University: Reorientation and Renewal

    NASA Astrophysics Data System (ADS)

    Murray, R. W.; Simpson, C.

    2003-12-01

    Beginning in 1994 with the renaming of its Department of Geology as the Department of Earth Sciences, Boston University has invested much effort into developing a modern, energetic department that excels in its dual research and teaching mission. These changes required strong leadership at the departmental and senior administrative level, but they have resulted in a moderately sized program (9.5 full time faculty) that is competing with "Top Ten" institutions for graduate students and faculty, and which is also placing its undergraduates in the leading graduate programs. Most of the revitalization was achieved over a 5-year period in which across the board changes occurred in our undergraduate curriculum and during which we recruited junior and mid-level faculty on the basis of their scholarly abilities and for their belief in the culture of our new mission and program. The undergraduate curriculum, which had been oriented towards traditional geologic offerings, was greatly increased in rigor (requiring a full year each of calculus, physics, and chemistry) and redesigned to expand flexibility in the broad field of earth sciences. During the evolution of the curriculum, it was extremely important not to confuse "tradition" with "rigor". Undergraduates became more critically involved with our research mission through senior theses, a formal Undergraduate Research Opportunities program, and by work-study participation in the laboratories. By making the program more challenging, over the period of 3 years we doubled the number of majors and minors and increased the average GPA by 0.5 units. Now, after 8 years, we have nearly tripled our overall number of students, with further improvements in quality and intellectual diversity. The opportunity to replace departing senior faculty was achieved through effectively arguing to the central administration that modern earth sciences are an essential component of any leading institution of higher education. By persuading the

  19. The role of the rehabilitation brace in restoring knee extension after anterior cruciate ligament reconstruction: a prospective controlled study.

    PubMed

    Melegati, G; Tornese, D; Bandi, M; Volpi, P; Schonhuber, H; Denti, M

    2003-09-01

    To evaluate the effects of a rehabilitation brace locked in extension for the first week on the recovery of full extension after ACL reconstruction we compared two groups of subjects who underwent ACL bone-patellar tendon-bone reconstruction. The brace was unlocked twice a day for assisted physiotherapy. In Group A, 18 male subjects wore a post-operative brace locked from 0 degrees to 90 degrees. In Group B, 18 male subjects wore the same post-op brace locked in full extension for the first week. In both groups the brace was unlocked (0 degrees -120 degrees ) at the beginning of the second postoperative week, and then removed at the beginning of the third week. All the subjects followed the same rigorous, accelerated rehabilitation protocol. Each subject was evaluated pre and post-operatively (at second, fourth and eighth week) with bubble-level heel height difference (HHD) measurements and KT 1000 arthrometric assessment at the fourth postoperative month. Preoperative bubble-level HHD measurements of the two groups were statistically similar (Group A 0.6 cm, Group B 1 cm; not significant, n.s.). At the fourth week (Group A 2.2 cm, Group B 0.6 cm) and eighth week (Group A 1.6 cm, Group B 0.1 cm) follow-ups, bubble-level HHD measurements showed that the extension of the operated knees of Group B was significantly greater than in Group A. KT 1000 arthrometric scores showed no difference between the two groups (Group A 1.8 mm, Group B 1.5; n.s.).

  20. A comparison of the biomechanical effects of valgus knee braces and lateral wedged insoles in patients with knee osteoarthritis.

    PubMed

    Jones, Richard K; Nester, Christopher J; Richards, Jim D; Kim, Winston Y; Johnson, David S; Jari, Sanjiv; Laxton, Philip; Tyson, Sarah F

    2013-03-01

    Increases in the external knee adduction moment (EKAM) have been associated with increased mechanical load at the knee and progression of knee osteoarthritis. Valgus knee braces and lateral wedged insoles are common approaches to reducing this loading; however no study has directly compared the biomechanical and clinical effects of these two treatments in patients with medial tibiofemoral osteoarthritis. A cross-over randomised design was used where each intervention was worn by 28 patients for a two week period. Pre- and post-intervention gait kinematic/kinetic data and clinical outcomes were collected to evaluate the biomechanical and clinical effects on the knee joint. The valgus knee brace and the lateral wedged insole significantly increased walking speed, reduced the early stance EKAM by 7% and 12%, and the knee adduction angular impulse by 8.6 and 16.1% respectively. The lateral wedged insole significantly reduced the early stance EKAM compared to the valgus knee brace (p=0.001). The valgus knee brace significantly reduced the knee varus angle compared to the baseline and lateral wedged insole. Improvements in pain and function subscales were comparable for the valgus knee brace and lateral wedged insole. There were no significant differences between the two treatments in any of the clinical outcomes; however the lateral wedged insoles demonstrated greater levels of acceptance by patients. This is the first study to biomechanically compare these two treatments, and demonstrates that given the potential role of knee loading in osteoarthritis progression, that both treatments reduce this but lateral wedge insoles appear to have a greater effect.

  1. Can a post-operative brace in slight hyperextension prevent extension deficit after anterior cruciate ligament reconstruction? A prospective randomised study.

    PubMed

    Mikkelsen, C; Cerulli, G; Lorenzini, M; Bergstrand, G; Werner, S

    2003-09-01

    It has been our observation that post-operative anterior cruciate ligament (ACL) braces together with the post-operative bandages do not always allow the knee to reach full extension. In ten uninjured knees with known hyperextension, the knees were bandaged in the same way as after an ACL-reconstruction. The knees were then studied radiologically in a Hypex brace set at 0 degrees, -5 degrees and -10 degrees of knee extension. Not a single knee was found to be straight in the brace set at 0 degrees. At -5 degrees most of the knees were straight or in slight hyperextension. It took -10 degrees to get all knees straight or in hyperextension. In a prospective randomised study 44 patients who underwent an arthroscopic ACL-reconstruction with a bone patellar tendon bone graft were randomised to use either a brace set at -5 degrees or a straight brace (0 degrees ) for at least the first three postoperative weeks. Before and three months after surgery range of motion was determined, using a goniometer with long arms, and sagittal knee laxity was measured with a KT-2000 arthrometer at manual max. Pre- and post-operative pain was evaluated with the Visual Analogue Scale (VAS). The same examiner (blindfolded to what type of brace was used) performed all the measurements. At three months, two of the 22 patients with the brace set at -5 degrees and twelve of the 22 patients with the straight brace had a loss of full extension of 2 degrees or more ( p<0.001). No significant differences were found between the groups in terms of knee flexion, sagittal knee laxity or post-operative pain. Although extension deficit after ACL-reconstruction can be prevented also in other ways, a Hypex brace set at -5 degrees seems to be an easy way of ensuring full knee extension.

  2. Designing a Case Study from the Popular Culture Text "Boston Public"

    ERIC Educational Resources Information Center

    Trier, James

    2010-01-01

    In this article, the author begins with a selective review of the case study literature that reveals that most case studies are based on "real," "actual," and "true" experiences. Next, he describes a case study that he designed from a fictional source--i.e., from an episode of the television series "Boston Public." Then, he explains what happened…

  3. Cumulative exposure to prior collective trauma and acute stress responses to the Boston marathon bombings.

    PubMed

    Garfin, Dana Rose; Holman, E Alison; Silver, Roxane Cohen

    2015-06-01

    The role of repeated exposure to collective trauma in explaining response to subsequent community-wide trauma is poorly understood. We examined the relationship between acute stress response to the 2013 Boston Marathon bombings and prior direct and indirect media-based exposure to three collective traumatic events: the September 11, 2001 (9/11) terrorist attacks, Superstorm Sandy, and the Sandy Hook Elementary School shooting. Representative samples of residents of metropolitan Boston (n = 846) and New York City (n = 941) completed Internet-based surveys shortly after the Boston Marathon bombings. Cumulative direct exposure and indirect exposure to prior community trauma and acute stress symptoms were assessed. Acute stress levels did not differ between Boston and New York metropolitan residents. Cumulative direct and indirect, live-media-based exposure to 9/11, Superstorm Sandy, and the Sandy Hook shooting were positively associated with acute stress responses in the covariate-adjusted model. People who experience multiple community-based traumas may be sensitized to the negative impact of subsequent events, especially in communities previously exposed to similar disasters. PMID:25896419

  4. 33 CFR 165.113 - Security Zone: Dignitary arrival/departure Logan International Airport, Boston, MA.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... enters the Callahan Tunnel or Sumner Tunnel. Sector two may preclude vessels, as necessary, from entering an area of the main ship channel, Boston Inner Harbor; fifty yards in all directions from a point directly above the Callahan Tunnel or Sumner Tunnel. (3) Sector three will go into effect 15 minutes...

  5. 33 CFR 165.113 - Security Zone: Dignitary arrival/departure Logan International Airport, Boston, MA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... enters the Callahan Tunnel or Sumner Tunnel. Sector two may preclude vessels, as necessary, from entering an area of the main ship channel, Boston Inner Harbor; fifty yards in all directions from a point directly above the Callahan Tunnel or Sumner Tunnel. (3) Sector three will go into effect 15 minutes...

  6. 33 CFR 165.113 - Security Zone: Dignitary arrival/departure Logan International Airport, Boston, MA

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... enters the Callahan Tunnel or Sumner Tunnel. Sector two may preclude vessels, as necessary, from entering an area of the main ship channel, Boston Inner Harbor; fifty yards in all directions from a point directly above the Callahan Tunnel or Sumner Tunnel. (3) Sector three will go into effect 15 minutes...

  7. 33 CFR 165.113 - Security Zone: Dignitary arrival/departure Logan International Airport, Boston, MA

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... enters the Callahan Tunnel or Sumner Tunnel. Sector two may preclude vessels, as necessary, from entering an area of the main ship channel, Boston Inner Harbor; fifty yards in all directions from a point directly above the Callahan Tunnel or Sumner Tunnel. (3) Sector three will go into effect 15 minutes...

  8. 6. View north across the BostonNew York main line towards ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. View north across the Boston-New York main line towards a house (left) and the former Clark Cotton Mill/Columbia Narrow Fabrics Co. Factory Site - Shannock Village, Main Street, North Shannock Road, & West Shannock Road, Richmond (historical), Providence County, RI

  9. 33 CFR 165.116 - Safety and Security Zones; Salem and Boston Harbors, Massachusetts.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Boston Harbor within one hundred fifty (150) yards off the bow and stern and one hundred (100) yards..., DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY REGULATED NAVIGATION AREAS AND LIMITED ACCESS AREAS Specific Regulated Navigation Areas and Limited Access Areas First Coast Guard...

  10. 33 CFR 165.116 - Safety and Security Zones; Salem and Boston Harbors, Massachusetts.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Boston Harbor within one hundred fifty (150) yards off the bow and stern and one hundred (100) yards..., DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY REGULATED NAVIGATION AREAS AND LIMITED ACCESS AREAS Specific Regulated Navigation Areas and Limited Access Areas First Coast Guard...

  11. 33 CFR 165.112 - Safety Zone: USS CASSIN YOUNG, Boston, Massachusetts.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... governing safety zones as contained in 33 CFR 165.23 apply. ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Safety Zone: USS CASSIN YOUNG... Safety Zone: USS CASSIN YOUNG, Boston, Massachusetts. (a) Location. The following area is a safety...

  12. 33 CFR 165.112 - Safety Zone: USS CASSIN YOUNG, Boston, Massachusetts.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... governing safety zones as contained in 33 CFR 165.23 apply. ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone: USS CASSIN YOUNG... Safety Zone: USS CASSIN YOUNG, Boston, Massachusetts. (a) Location. The following area is a safety...

  13. 33 CFR 165.112 - Safety Zone: USS CASSIN YOUNG, Boston, Massachusetts.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... governing safety zones as contained in 33 CFR 165.23 apply. ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Safety Zone: USS CASSIN YOUNG... Safety Zone: USS CASSIN YOUNG, Boston, Massachusetts. (a) Location. The following area is a safety...

  14. 33 CFR 165.112 - Safety Zone: USS CASSIN YOUNG, Boston, Massachusetts.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... governing safety zones as contained in 33 CFR 165.23 apply. ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety Zone: USS CASSIN YOUNG... Safety Zone: USS CASSIN YOUNG, Boston, Massachusetts. (a) Location. The following area is a safety...

  15. 33 CFR 165.112 - Safety Zone: USS CASSIN YOUNG, Boston, Massachusetts.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... governing safety zones as contained in 33 CFR 165.23 apply. ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Safety Zone: USS CASSIN YOUNG... Safety Zone: USS CASSIN YOUNG, Boston, Massachusetts. (a) Location. The following area is a safety...

  16. 77 FR 56115 - Drawbridge Operation Regulations; Fort Point Channel, Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-12

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 117 Drawbridge Operation Regulations; Fort Point Channel, Boston, MA AGENCY: Coast Guard, DHS. ACTION: Notice of temporary deviation from regulations. SUMMARY: The...

  17. 77 FR 34797 - Drawbridge Operation Regulations; Chelsea River, Chelsea and East Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-12

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 117 Drawbridge Operation Regulations; Chelsea River, Chelsea and East Boston, MA AGENCY: Coast Guard, DHS. ACTION: Notice of temporary deviation from regulations. SUMMARY:...

  18. 76 FR 4817 - Drawbridge Operation Regulations; Chelsea River, Chelsea and East Boston, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-27

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 117 Drawbridge Operation Regulations; Chelsea River, Chelsea and East Boston, MA AGENCY: Coast Guard, DHS. ACTION: Notice of temporary deviation from regulations. SUMMARY:...

  19. 75 FR 21367 - Advanced Electronics, Inc.; Boston, MA; Notice of Negative Determination on Remand

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-23

    ... Employment and Training Administration Advanced Electronics, Inc.; Boston, MA; Notice of Negative.... United States Secretary of Labor (Court No. 06-00337). On July 18, 2006, the Department issued a Negative... August 4, 2006 (71 FR 44320). Prior to separation, the subject workers produced printed circuit...

  20. Distance Learning at Boston University [and] Comments on McNamara, et al.

    ERIC Educational Resources Information Center

    McNamara, Sue; And Others

    1995-01-01

    McNamara and others describe Boston University's off-campus graduate program in rehabilitation counseling, which uses distance learning methods such as videotapes and electronic bulletin boards. The intensive individualized advising and monitoring system is serving as a model for on-campus students. Comments by Ulicny and Rubin follow the article.…

  1. Immigration, Suicidal Ideation and Deliberate Self-Injury in the Boston Youth Survey 2006

    ERIC Educational Resources Information Center

    Borges, Guilherme; Azrael, Deborah; Almeida, Joanna; Johnson, Renee M.; Molnar, Beth E.; Hemenway, David; Miller, Matthew

    2011-01-01

    The prevalence and immigration-related correlates of deliberate self-injury (DSI) and suicidal ideation (SI) were estimated in a sample of Boston public high school students in 2006. Compared with U.S.-born youth, immigrant youth were not at increased risk for DSI or SI, even if they had experienced discrimination due to their ancestry. By…

  2. A DETERMINISTIC GEOMETRIC REPRESENTATION OF TEMPORAL RAINFALL: SENSITIVITY ANALYSIS FOR A STORM IN BOSTON. (R824780)

    EPA Science Inventory

    In an earlier study, Puente and Obregón [Water Resour. Res. 32(1996)2825] reported on the usage of a deterministic fractal–multifractal (FM) methodology to faithfully describe an 8.3 h high-resolution rainfall time series in Boston, gathered every 15 s ...

  3. Alcohol and Other Drug Use and Automobile Safety: A Survey of Boston Area Teen-Agers.

    ERIC Educational Resources Information Center

    Wechsler, Henry; And Others

    1984-01-01

    Boston area secondary school students were surveyed to help provide educators with information on student behaviors and beliefs about drinking, drug use, and driving. Data suggest that risk-taking and drug-using behaviors should be addressed in educational programs and that information on the effects of drugs on driving ability should be…

  4. Knowledge about HIV and Behavioral Risks of Foreign-Born Boston Public School Students.

    ERIC Educational Resources Information Center

    Hingson, Ralph W.; And Others

    1991-01-01

    Compares the level of knowledge about human immunodeficiency virus (HIV) transmission and risk behavior of 1,057 foreign-born and 1,963 U.S.-born high school and middle school students in Boston (Massachusetts). Results suggest that Acquired Immunodeficiency Syndrome education should be taught to immigrant students in their native languages. (SLD)

  5. Twenty-Five Years of the Boston University Conference on Language Development: An Institutional History.

    ERIC Educational Resources Information Center

    Thomas, Margaret

    2000-01-01

    Presents an overview of the first quarter century of the Boston University Conference on Language Development (BUCLD), using data from interviews with people who have had various close connections to the conference throughout the years, including all of the principal faculty advisors, and 25 years of BUCLD handbooks, which are compiled annually.…

  6. Growing Together: Boston Area Youth Follow Food from Field to Table.

    ERIC Educational Resources Information Center

    LeVaux, Ari

    2001-01-01

    The Food Project brings together Boston-area youth to grow and distribute food for the hungry and in the process, develop leadership and job skills. Summer crew workers (high school students) grow vegetables, distribute them to food pantries, and sell them at farmer's markets. Crew leaders learn more about sustainable agriculture and hone…

  7. Do Foreclosures Affect Boston Public School Student Academic Performance? Public Policy Brief No. 13-5

    ERIC Educational Resources Information Center

    Bradbury, Katharine; Burke, Mary A.; Triest, Robert K.

    2013-01-01

    Foreclosures have well-documented adverse consequences for families living in or owning properties undergoing foreclosure and on surrounding neighborhoods, but they may also have other costs. This policy brief summarizes our research on the impact of mortgage foreclosures on academic performance among Boston public school students. The data show…

  8. The Implementation of CETA in Boston, 1974-77. Final Report.

    ERIC Educational Resources Information Center

    Herrnstadt, Irwin L.; And Others

    A case study of the introduction of the Comprehensive Employment and Training Act (CETA) in Boston was conducted (1) to chronicle and analyze the changes in employment and training planning and programs as the federal policy changes from a centralized and categorical policy to a decentralized and decategorized one, (2) to examine the impact of…

  9. "We Don't Feel Welcome Here": African Americans and Hispanics in Metro Boston

    ERIC Educational Resources Information Center

    Louie, Josephine

    2005-01-01

    Racial discrimination is an ongoing reality in the lives of African Americans and Hispanics in Metro Boston. Although the region has experienced significant growth in racial and ethnic diversity over the past several decades, racial minority groups continue to struggle for full acceptance and equal opportunity. African Americans and Hispanics…

  10. The Lowells of Boston and the Founding of University Extension at Harvard

    ERIC Educational Resources Information Center

    Shinagel, Michael

    2009-01-01

    In this article, the author uses the occasion of the centennial of University Extension at Harvard to document how this unique educational institution came into being and why it became associated with Harvard University. He traces the prominent role played by the Lowell family in establishing the Lowell Institute of Boston in the late 1830s and…

  11. Opportunity and Equity: Enrollment and Outcomes of Black and Latino Males in Boston Public Schools

    ERIC Educational Resources Information Center

    Miranda, Helena P.; Mokhtar, Christina; Tung, Rosann; Ward, Ray; French, Dan; McAlister, Sara; Marshall, Anne

    2014-01-01

    This research study aims to better understand the diversity of experiences and backgrounds among Black and Latino male students in Boston Public Schools (BPS) by examining enrollment and outcomes of Black and Latino males relative to their female peers and their male peers from other racial backgrounds. Specifically, the authors designed this…

  12. Segregation in Neighborhoods and Schools: Impacts on Minority Children in the Boston Region.

    ERIC Educational Resources Information Center

    Logan, John R.; Oakley, Deirdre; Stowell, Jacob

    This study used data about neighborhoods from the 1990 and 2000 Census and corresponding data on public elementary schools gathered by the National Center for Education Statistics to examine segregation in neighborhoods and schools in a seven-county area around Boston, Massachusetts. Data analysis indicated that black and Hispanic children were…

  13. Development of a Short Form of the Boston Naming Test for Individuals with Aphasia

    ERIC Educational Resources Information Center

    del Toro, Christina M.; Bislick, Lauren P.; Comer, Matthew; Velozo, Craig; Romero, Sergio; Rothi, Leslie J. Gonzalez; Kendall, Diane L.

    2011-01-01

    Purpose: The purpose of this study was to develop a short form of the Boston Naming Test (BNT; Kaplan, Goodglass, & Weintraub, 2001) for individuals with aphasia and compare it with 2 existing short forms originally analyzed with responses from people with dementia and neurologically healthy adults. Method: Development of the new BNT-Aphasia Short…

  14. Commitment and Compassion: Boston's Comprehensive Policy for the Homeless. Winter Report, December 1989.

    ERIC Educational Resources Information Center

    Emergency Shelter Commission, Boston, MA.

    The people of Boston made a commitment that no homeless person will be denied a bed, a meal, quality health care, and transportation to shelter during the winter of 1989-90. This commitment was difficult to fulfill due to a decline in services for the mentally ill, federal housing cutbacks, and an increase in the number of families living in…

  15. Measuring the Mission: Insights Gained Through the Boston College Questionnaire about the Undergraduate Experience

    ERIC Educational Resources Information Center

    Fleming, James J.; Overstreet, Dawn V.; Chappe, Stephanie L.

    2006-01-01

    The "Boston College Questionnaire about the Undergraduate Experience" (BCQ)" arose from a growing need to gather reliable evidence about the impact of the undergraduate experience on students who attend Catholic colleges and universities in the United States. Although abundant sources of data exist that tell us who our students are when they…

  16. Gun Carrying by High School Students in Boston, MA: Does Overestimation of Peer Gun Carrying Matter?

    ERIC Educational Resources Information Center

    Hemenway, David; Vriniotis, Mary; Johnson, Renee M.; Miller, Matthew; Azrael, Deborah

    2011-01-01

    This paper investigates: (1) whether high school students overestimate gun carrying by their peers, and (2) whether those students who overestimate peer gun carrying are more likely to carry firearms. Data come from a randomly sampled survey conducted in 2008 of over 1700 high school students in Boston, MA. Over 5% of students reported carrying a…

  17. Early Nineteenth Century Christian Libertarian Newspapers: Rise and Decline of the Boston Recorder, 1816-1849.

    ERIC Educational Resources Information Center

    Olasky, Marvin N.

    Recent history textbooks have conspicuously removed references to religion and religious publications, providing a distorted view of American and world history. One such neglected publication, the Boston "Recorder," was founded by Nathaniel Willis in 1816. A Christian newspaper, it was based on three principles: (1) to show theological truth; (2)…

  18. 78 FR 23667 - Honoring the Victims of the Tragedy in Boston, Massachusetts

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-19

    ... violence perpetrated on April 15, 2013, in Boston, Massachusetts, by the authority vested in me as... public buildings and grounds, at all military posts and naval stations, and on all naval vessels of the... Independence of the United States of America the two hundred and thirty- seventh. (Presidential Sig.) [FR...

  19. 76 FR 7236 - Self-Regulatory Organizations; Stock Clearing Corporation of Philadelphia; Boston Stock Exchange...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-09

    ... Release No. 59858 (May 4, 2009), 74 FR 22191 (May 12, 2009) (SR-NASDAQ-2009-039). Prior to the closing of... COMMISSION Self-Regulatory Organizations; Stock Clearing Corporation of Philadelphia; Boston Stock Exchange... is hereby given that on January 19, 2011, Stock Clearing Corporation of Philadelphia, Inc....

  20. Boston College Sees a Sharp Drop in Applications after Adding an Essay

    ERIC Educational Resources Information Center

    Hoover, Eric

    2013-01-01

    Boston College saw a 26-percent decrease in applications this year, a drop officials largely attribute to a new essay requirement. Last year the private Jesuit institution received a record 34,051 applications for 2,250 spots in its freshman class. This year approximately 25,000 students applied, and all of them had to do one thing their…

  1. Association between BDNF-rs6265 and obesity in the Boston Puerto Rican Health Study

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The objective of this study is to examine a functional variant (rs6265) in the BDNF gene interacting with dietary intake modulate obesity traits in the Boston Puerto Rican Health Study population. BDNF rs6265 was genotyped in 1147 Puerto Ricans (aged 45-75 years), and examined for association with o...

  2. Waste Not, Want Not: A Boston Recycling Center Gives Equity a Boost.

    ERIC Educational Resources Information Center

    Drew, Walter; Drew, Kitty

    1987-01-01

    Describes the Boston Public Schools Recycle Center which receives materials donations from more than 100 local industries. These donations are used as educational materials for disadvantaged pupils. Materials are free and teacher training workshops are provided. Ecological implications for urban students and teachers are discussed. (PS)

  3. 40 CFR 52.1163 - Additional control measures for East Boston.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 4 2013-07-01 2013-07-01 false Additional control measures for East Boston. 52.1163 Section 52.1163 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... spaces at Logan Airport and increased parking charges at remaining spaces; (5) Construction of...

  4. Thriving People. Vibrant Places. A Five-Year Progress Report from the Boston Foundation

    ERIC Educational Resources Information Center

    Hindley, Barbara

    2016-01-01

    In the fall of 2009, the Boston Foundation announced a new strategic framework, "Thriving People, Vibrant Places", to guide much of its work for the next five years. The framework had its roots in a larger strategic direction first taken by the Foundation's Board of Directors in 2001. At that time, the Board believed the Boston…

  5. Journalistic Impartiality on the Eve of Revolution: the "Boston Evening Post," 1770-1775.

    ERIC Educational Resources Information Center

    Moses, James L.

    1994-01-01

    Examines the impartiality of Thomas Fleet, Sr.'s "Boston Evening Post" during the years leading up to the Revolutionary War, a period during which patriots put pressure on newspapers take their side. Reviews data illustrating the paper's even-handed dealing with issues concerning Patriots and Loyalists. (TB)

  6. 75 FR 49412 - Safety Zones; Fireworks Within the Captain of the Port Sector Boston Zone

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-13

    ... populations of less than 50,000. The Coast Guard certifies under 5 U.S.C. 605(b) that this rule will not have... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zones; Fireworks Within the Captain of the Port Sector Boston Zone AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard...

  7. The Path Forward: School Autonomy and Its Implications for the Future of Boston's Public Schools

    ERIC Educational Resources Information Center

    French, Dan; Miles, Karen Hawley; Nathan, Linda

    2014-01-01

    This study explores the question of how Boston Public Schools (BPS) can strengthen and support autonomy and accountability across its portfolio to promote innovation and expand access to equity and high performance. Some of the specific questions guiding this work are: (1) Should all schools within BPS operate within autonomous structures? (2) Is…

  8. Boston University: Sustainability Revolving Loan Fund. Green Revolving Funds in Action: Case Study Series

    ERIC Educational Resources Information Center

    Flynn, Emily

    2011-01-01

    Boston University's (BU) Sustainability Revolving Loan Fund was created in 2008 through an allocation of $1 million from the university's administrative budget. The fund is administered by the Vice President of Operations. Potential projects are identified by the university's Director of Energy Administration and Operations along with the…

  9. 77 FR 40147 - Boston and Maine Corporation-Abandonment Exemption-in Worcester County, MA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-06

    ... Surface Transportation Board Boston and Maine Corporation--Abandonment Exemption--in Worcester County, MA... service over the line either is pending with the Surface Transportation Board (Board) or with any U.S..., 2012, with the Surface Transportation Board, 395 E Street SW., Washington, DC 20423-0001. \\2\\ The...

  10. 76 FR 55161 - Boston and Maine Corporation-Abandonment Exemption-Middlesex County, Mass.; Springfield Terminal...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-06

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Boston and Maine Corporation--Abandonment Exemption--Middlesex County, Mass... Middlesex County, Mass. The line traverses United States Postal Service Zip Codes 02471 and...

  11. The Economic Impact of Eight Research Universities on the Boston Region

    ERIC Educational Resources Information Center

    Simha, O. Robert

    2005-01-01

    The greater Boston region's eight research universities play a key role in the region's economic health and welfare. They are magnets for research and development talent and for billions of dollars in investment. These institutions contribute $7.4 billion dollars to the regional economy, jobs for about 50,000 university employees and 37,000…

  12. Factors That Contribute to Academic Success: A Qualitative Study of Boston Public Exam School Students

    ERIC Educational Resources Information Center

    Hickey, Kathleen Ryan

    2012-01-01

    This qualitative research study examined the experiences of students who have been academically successful within a large, urban school district, specifically the Boston Public School District. The study sought both to uncover specific factors within individuals, homes, schools, and communities that promote academic success and to capture the…

  13. Boston's Arnold Arboretum: A Place for Study and Recreation. Teaching with Historic Places.

    ERIC Educational Resources Information Center

    Banks, Alan

    This lesson is based on the National Register of Historic Places registration file for the Arnold Arboretum (Massachusetts) and other source material about the Arboretum and Frederick Law Olmstead. The lesson focuses on the first arboretum in the United States, which was part of Olmstead's plan for Boston's park system, known as the "Emerald…

  14. Aeroservoelastic Wind-Tunnel Test of the SUGAR Truss Braced Wing Wind-Tunnel Model

    NASA Technical Reports Server (NTRS)

    Scott, Robert C.; Allen, Timothy J.; Funk, Christie J.; Castelluccio, Mark A.; Sexton, Bradley W.; Claggett, Scott; Dykman, John; Coulson, David A.; Bartels, Robert E.

    2015-01-01

    The Subsonic Ultra Green Aircraft Research (SUGAR) Truss-Braced Wing (TBW) aeroservoelastic (ASE) wind-tunnel test was conducted in the NASA Langley Transonic Dynamics Tunnel (TDT) and was completed in April, 2014. The primary goals of the test were to identify the open-loop flutter boundary and then demonstrate flutter suppression. A secondary goal was to demonstrate gust load alleviation (GLA). Open-loop flutter and limit cycle oscillation onset boundaries were identified for a range of Mach numbers and various angles of attack. Two sets of control laws were designed for the model and both sets of control laws were successful in suppressing flutter. Control laws optimized for GLA were not designed; however, the flutter suppression control laws were assessed using the TDT Airstream Oscillation System. This paper describes the experimental apparatus, procedures, and results of the TBW wind-tunnel test. Acquired system ID data used to generate ASE models is also discussed.2 study.

  15. Aircraft Observations of the Tampa Urban Plume during BRACE: Transport, Photochemical, and Depositional Processes

    NASA Astrophysics Data System (ADS)

    Luke, W.; Arnold, J.; Watson, T.; Gunter, L.; Wellman, D.; Dasgupta, P.; Li, J.; Riemer, D.

    2003-12-01

    Staff from NOAA's Air Resources Laboratory conducted airborne measurements of trace gases and aerosols in the Bay Region Atmospheric Chemistry Experiment (BRACE) using the NOAA Twin Otter. The Twin Otter flew more than 90 hours in 21 flights in and around the Tampa metropolitan region in May, 2002, at altitudes of 60-3000 m MSL. Flights were conducted over rural and suburban areas, over the centers of Tampa and St. Petersburg, and over Tampa Bay and the Gulf of Mexico. The overall objective of the aircraft measurements in BRACE was to study the emission, transport, and photochemical transformations of nitrogen and other ozone precursors in the Tampa area. Continuous instrumentation was used to measure NO, NOX, NOY, HNO3, CO, SO2, O3, CH2O, and H2O2. A semi-continuous GC technique with luminol detection was used to measure PAN. Filter packs were used to make integrated measurements of nitric acid and inorganic aerosols in both fine and bulk aerosol size fractions. Stainless steel grab cans were filled during flight for post-flight analysis of NMHCs by GC/FID/MS. The urban plume was sampled under a variety of meteorological regimes, as it was advected by the prevailing winds over the Florida peninsula (with continuing input of natural and anthropogenic precursors along the advection path) and, in other cases, over the Gulf of Mexico, where additional chemical inputs were negligible and the plume was relatively unaffected by turbulent deposition processes. Case studies will be used to compare and contrast the photochemical processes in the plume under these different regimes. The observed relationships and variations of trace gas concentrations will be used to determine the efficiency of ozone production, as well as instances of NOX or VOC limitation. Sampling the plume at varying downwind distances, over both land and water, allows the determination of overall rates of photochemical ozone production, NOX and SOX oxidation, and estimates of depositional losses of

  16. Effects of different types of contraction in abdominal bracing on the asymmetry of left and right abdominal muscles.

    PubMed

    Park, Sung-Hyun; Song, Min-Young; Park, Hyeon-Ji; Park, Ji-Hyun; Bae, Hyun-Young; Lim, Da-Som

    2014-12-01

    [Purpose] The purpose of this study was to investigate the effective strength levels of abdominal muscle contraction using the bracing contraction method. [Subjects] The experiment was conducted with 31 healthy male (M=15) and female (F=16) adults attending D University in Busan; all participants had less than obesity level BMI (BMI<30). [Methods] Bracing contraction was performed by the subjects in the hook-lying position at maximum and minimum pressure levels, five times each, using a Pressure Biofeedback Unit (PBU), and the mean measurement value was calculated. The maximum pressure level was set at 100% and the half maximum pressure level was set at 50%. Each subject's left and right abdominal muscle thicknesses were then measured by ultrasound imaging in each state: at rest, 100% contraction, and 50% contraction. [Results] No significant differences were found between the left and right sides of the transversus abdominis (TrA) at rest, 50%, or 100% contraction. The external oblique abdominis (EO) and internal oblique abdominis (IO) showed no significant difference at rest or at the 50% contraction. However, a significant difference was noted at 100% contraction for the EO and IO. [Conclusion] Application of abdominal contraction using bracing can achieve symmetry in the left and right abdominal muscles at less than the maximum contractile strength. The occurrence of asymmetry in the left and right abdominal muscles at the maximum contractile strength suggests that the most suitable contractile strength in this exercise is less than the maximum contractile strength. PMID:25540478

  17. Synergistic effect of using a transcutaneous electrical joint stimulator and an unloading brace in treating osteoarthritis of the knee.

    PubMed

    Hungerford, David S; Maclaughlin, Edmund J; Mines, Craig M; Deveshwar, Shaili; Elliott, Cynthia; Tuber, Jack S; Principe, John R; Ford, Theresa Lawrence; Schechtman, Joy; Zizic, Thomas M

    2013-10-01

    Medical treatments and less invasive surgical approaches for knee osteoarthritis are variably effective, and total knee arthroplasty (TKA) is generally reserved for the most severe cases. The care gap between more conservative treatments and TKA leaves many patients with unresolved pain and loss of function for long periods. We conducted a study to determine if incorporating the BioniCare stimulator into an unloading brace would produce more rapid improvement and result in increased adherence and efficacy. Two hundred eighty-nine patients treated only with BioniCare served as historical controls and were compared with 225 patients treated with BioniCare combined with an unloading brace. Means and standard deviations of the changes in scores for pain intensity in the past 48 hours, pain and associated symptoms, patient global assessment, pain on going up or down stairs, and pain on walking on a flat surface and the effect sizes at 1, 3, 6, and 12 months, as well as the percentages of patients achieving at least 20% improvement, and at least 50% improvement, demonstrated that treatment with stimulator and unloading brace combined was significantly superior to treatment with the stimulator alone.

  18. Balancing act: approaches to healthy eating and physical activity among Boston public housing residents.

    PubMed

    Scammell, Madeleine Kangsen; Torres, Shioban; Wayman, Julie; Greenwood, Nechama; Thomas, Gerry; Kozlowski, Lauren; Bowen, Deborah

    2015-01-01

    Boston public housing residents are more likely to report fair or poor health status, been diagnosed with obesity, and to be physically inactive compared with other Boston residents (Digenis-Bury, Brooks, Chen, Ostrem, & Horsburgh, 2008 ). Little is known about perceptions of and opportunities for healthy eating and physical activity in this population. We conducted eight focus groups at public housing developments to explore residents' views regarding opportunities and barriers to healthy eating and physical activity. Sixty-seven English- and Spanish-speaking residents participated. Transcripts were analyzed using qualitative content analysis. All residents described the challenge of balancing considerations of food quality, access, and affordability. Other findings included underutilized nutritional resources; abundant availability of unhealthy food; and economic and structural barriers to exercise. Transportation-related challenges were a dominant theme. Building opportunities for physical activity and providing access to affordable and quality food choices may be important interventions for promoting health among public housing residents.

  19. Does neighborhood collective efficacy for families change over time? The Boston Neighborhood Survey

    PubMed Central

    Schmidt, Nicole M.; Tchetgen Tchetgen, Eric J.; Ehntholt, Amy; Almeida, Joanna; Nguyen, Quynh C.; Molnar, Beth E.; Azrael, Deborah; Osypuk, Theresa L.

    2014-01-01

    There is an increased interest in how neighborhood social processes, such as collective efficacy, may protect mental health. Yet little is known about how stable these neighborhood processes are over time, or how to change them to influence other downstream factors. We used a population-based, repeat cross-sectional study of adults (n=5135) to assess stability of collective efficacy for families in 38 Boston neighborhoods across 4 years (2006, 2008, 2010) (the Boston Neighborhood Survey). We test temporal stability of collective efficacy for families across and within neighborhoods using 2-level random effects linear regression, fixed effects linear regression, T-tests, and Wilcoxon rank tests. Across the different methods, neighborhood collective efficacy for families remained stable across 4 years, after adjustment for neighborhood composition. If neighborhood collective efficacy is measured within 4 years of the exposure period of interest, assuming temporal stability may be valid. PMID:24976653

  20. Twitter as a Sentinel in Emergency Situations: Lessons from the Boston Marathon Explosions

    PubMed Central

    Cassa, Christopher A.; Chunara, Rumi; Mandl, Kenneth; Brownstein, John S

    2013-01-01

    Immediately following the Boston Marathon attacks, individuals near the scene posted a deluge of data to social media sites. Previous work has shown that these data can be leveraged to provide rapid insight during natural disasters, disease outbreaks and ongoing conflicts that can assist in the public health and medical response. Here, we examine and discuss the social media messages posted immediately after and around the Boston Marathon bombings, and find that specific keywords appear frequently prior to official public safety and news media reports. Individuals immediately adjacent to the explosions posted messages within minutes via Twitter which identify the location and specifics of events, demonstrating a role for social media in the early recognition and characterization of emergency events. *Christopher Cassa and Rumi Chunara contributed equally to this work. PMID:23852273