15,936 research outputs found
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The Effects of Professional Development on Co-Teaching for Special and General Education Teachers and Students
As we progress into a future where more students with IEPs are in general education classes, teachers must be innovative, creative, and passionate about providing an opportunity for all students to succeed in the classroom. Rather than students with IEPs be taken from their classrooms to receive remedial services from their special education teacher, it is more beneficial to all students and teachers to have education specialists and general education teachers co-teach classes (Conderman, 2011). Education specialists have extensive knowledge in acquisition of literacy skills, how to scaffold, and present information through multiple mediums. General education teachers are experts in their content areas, and are effective in delivering instruction to an audience of learners with different needs. Together, they can learn from each other to create a more enriched learning environment where all students can succeed. This study examined the pre and post surveys of 35 (15 special education and 20 general education) middle school students and 22 teachers about their experiences with co-teaching
Finite size effects on the Poynting-Robertson effect: a fully general relativistic treatment
Ever since the first discovery of Poynting and Robertson, the radiation
source has been treated as merely a point. Even in a very few studies where the
size of the source has been taken into account, the treatment of the problem
remained largely non-relativistic. In the present work, we address the issue of
the finite size effects on the Poynting-Robertson effect in a fully
relativistic manner for the first time. As a result, the emergence and the
characteristic of the critical point/suspension orbit can be studied in a
systematic and detailed manner.Comment: 11pages, 3figure
A first-order differential double subordination with applications
Let and belong to a certain class of normalized analytic
univalent functions in the open unit disk of the complex plane. Sufficient
conditions are obtained for normalized analytic functions to satisfy the
double subordination chain . The differential
sandwich-type result obtained is applied to normalized univalent functions and
to -like functions
Syntaxin 4 Overexpression Ameliorates Effects of Aging and High-Fat Diet on Glucose Control and Extends Lifespan
SummaryIndirect evidence suggests that improved insulin sensitivity may contribute to improved lifespan of mice in which aging has been slowed by mutations, drugs, or dietary means, even in stocks of mice that do not show signs of late-life diabetes. Peripheral responses to insulin can be augmented by overexpression of Syntaxin 4 (Syn4), a plasma-membrane-localized SNARE protein. We show here that Syn4 transgenic (Tg) mice with high level expression of Syn4 had a significant extension of lifespan (33% increase in median) and showed increased peripheral insulin sensitivity, even at ages where controls exhibited age-related insulin resistance. Moreover, skeletal muscle GLUT4 and islet insulin granule exocytosis processes were fully protected in Syn4 Tg mice challenged with a high-fat diet. Hence, high-level expressing Syn4 Tg mice may exert better glycemic control, which slows multiple aspects of aging and extends lifespan, even in non-diabetic mice
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ClinicalTrials.gov as a Data Source for Semi-Automated Point-Of-Care Trial Eligibility Screening
Background: Implementing semi-automated processes to efficiently match patients to clinical trials at the point of care requires both detailed patient data and authoritative information about open studies. Objective: To evaluate the utility of the ClinicalTrials.gov registry as a data source for semi-automated trial eligibility screening. Methods: Eligibility criteria and metadata for 437 trials open for recruitment in four different clinical domains were identified in ClinicalTrials.gov. Trials were evaluated for up to date recruitment status and eligibility criteria were evaluated for obstacles to automated interpretation. Finally, phone or email outreach to coordinators at a subset of the trials was made to assess the accuracy of contact details and recruitment status. Results: 24% (104 of 437) of trials declaring on open recruitment status list a study completion date in the past, indicating out of date records. Substantial barriers to automated eligibility interpretation in free form text are present in 81% to up to 94% of all trials. We were unable to contact coordinators at 31% (45 of 146) of the trials in the subset, either by phone or by email. Only 53% (74 of 146) would confirm that they were still recruiting patients. Conclusion: Because ClinicalTrials.gov has entries on most US and many international trials, the registry could be repurposed as a comprehensive trial matching data source. Semi-automated point of care recruitment would be facilitated by matching the registry's eligibility criteria against clinical data from electronic health records. But the current entries fall short. Ultimately, improved techniques in natural language processing will facilitate semi-automated complex matching. As immediate next steps, we recommend augmenting ClinicalTrials.gov data entry forms to capture key eligibility criteria in a simple, structured format
Evaluation of the Cost and Effectiveness of Direct Nutrition Education to Low-Income Audiences in Iowa: EFNEP and SNAP-Ed graduates practicing Optimal Nutritional Behaviors (ONB)
The Expanded Food and Nutrition Education Program (EFNEP) and the Family Nutrition Program (FNP) (the Supplemental Nutrition Assistance Program-Education, or SNAP-Ed in Iowa) are community outreach programs in Iowa designed to help teens and adults who have limited income and are parenting acquire the knowledge, skills, attitudes, and practices to improve total family diet and nutritional well-being. This study uses current information on Iowaâs EFNEP and FNP today to evaluate the costs and benefits of the two related programs and provides updated information to a study conducted in Iowa from 1998 to 2000.
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Integration of vision and force sensors for grasping
This paper describes a set of methods that can be used to integrate real-time external vision sensing with internal force and position sensing to estimate contact forces by the fingers of a hand. Estimating these forces and contacts is essential to performing dextrous manipulation tasks. Most robotic hands are either sensorless or lack the ability to accurately and robustly report position and force information relating to contact. By adding external vision sensing, we can complement any internal sensors to more accurately estimate forces and contact positions. Experiments are described that use real-time visual trackers in conjunction with internal strain gauges and a new tactile sensor to accurately estimate finger contacts and applied forces for a three fingered robotic hand
Effect of increased quadriceps tensile stiffness on peak anterior cruciate ligament strain during a simulated pivot landing
ACL injury prevention programs often involve strengthening the knee muscles. We posit that an unrecognized benefit of such training is the associated increase in the tensile stiffness of the hypertrophied muscle. We tested the hypothesis that an increased quadriceps tensile stiffness would reduce peak anteromedial bundle (AMâ)ACL relative strain in female knees. Twelve female cadaver knees were subjected to compound impulsive twoâtimes body weight loads in compression, flexion, and internal tibial torque beginning at 15° flexion. Knees were equipped with modifiable custom springs to represent the nonlinear rapid stretch behavior of a normal and increased stiffness female quadriceps (i.e., 33% greater stiffness). Peak AMâACL relative strain was measured using an in situ transducer while muscle forces and tibiofemoral kinematics and kinetics were recorded. A 3D ADAMSâą dynamic biomechanical knee model was used in silico to interpret the experimental results which were analyzed using a repeatedâmeasures Wilcoxon test. Female knees exhibited a 16% reduction in peak AMâACL relative strain and 21% reduction in change in flexion when quadriceps tensile stiffness was increased by 33% (mean (SD) difference: 0.97% (0.65%), p â=â0.003). We conclude that increased quadriceps tensile stiffness reduces peak ACL strain during a controlled study simulating a pivot landing. © 2013 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 32:423â430, 2014.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/102663/1/jor22531.pd
CCL2 and CCR2 regulate pain-related behaviour and early gene expression in post-traumatic murine osteoarthritis but contribute little to chondropathy
SummaryObjectiveThe role of inflammation in structural and symptomatic osteoarthritis (OA) remains unclear. One key mediator of inflammation is the chemokine CCL2, primarily responsible for attracting monocytes to sites of injury. We investigated the role of CCL2 and its receptor CCR2 in experimental OA.DesignOA was induced in 10 weeks old male wild type (WT), Ccl2â/â and Ccr2â/â mice, by destabilisation of the medial meniscus (DMM). RNA was extracted from whole joints at 6Â h and 7 days post-surgery and examined by reverse transcription polymerase chain reaction (RT-PCR). Gene expression changes between naĂŻve and DMM-operated mice were compared. Chondropathy scores, from mice at 8, 12, 16 and 20 weeks post DMM were calculated using modified Osteoarthritis Research Society International (OARSI) grading systems. Changes in hind paw weight distribution, as a measure of pain, were assessed by Linton incapacitance.ResultsAbsence of CCL2 strongly suppressed (>90%) selective inflammatory response genes in the joint 6Â h post DMM, including arginase 1, prostaglandin synthase 2, nitric oxide synthase 2 and inhibin A. IL6, MMP3 and tissue inhibitor of metalloproteinase 1 were also significantly suppressed. Similar trends were also observed in the absence of CCR2. A lower average chondropathy score was observed in both Ccl2â/â and Ccr2â/â mice at 12, 16 and 20 weeks post DMM compared with WT mice, but this was only statistically significant at 20 weeks in Ccr2â/â mice. Pain-related behaviour in Ccl2â/â and Ccr2â/â mice post DMM was delayed in onset.ConclusionThe CCL2/CCR2 axis plays an important role in the development of pain in murine OA, but contributes little to cartilage damage
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