1,265 research outputs found
Treatment of Sporadic Acute Puerperal Mastitis
Objective: The purposes of this study were to compare the efficacy of amoxicillin and cephradine for the
treatment of sporadic acute puerperal mastitis (SAPM) and to evaluate the microbiology and clinical
parameters of this infection
A promising material for non-linear optics: Observation of second harmonic generation from 4-[N-(4-carboxypentyl)-N-methylamino]-4′-nitrostilbene- coated substrates
Glass coated with a nitro amino stilbene carboxylic acid using the Langmuir-Blodgett technique gave a non-centrosymmetric material exhibiting second harmonic generation, 1.06 to 0.53 μm
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Analysis and Comparison of a Developmental Task Scale on Differing Adolescent Populations
The following research questions were investigated: (a) Can the age-mates scales from the Dales developmental task scales be used with southwestern-urban adolescent populations? (b) Are there any systematic differences between northeastern-nonurban and southwestern-urban subject populations on the response to these scales? The subjects consisted of 884 adolescents, 11 through 15 years, evenly divided by sex. Subject responses were analyzed by sex and age groups using Guttman scalogram analysis. Goodman's test of significance revealed that the results could have occurred by chance (p > .05). The instrument in its present form was not found useful'-for an urban population. Lack of reproducibility made comparison of the performance of urban and nonurban adolescents unjustified
Is radical cystectomy indicated in patients with regional lymphatic metastases?
The records of 21 patients who had radical cystectomies for the treatment of locally advanced bladder cancer and were found to have regional lymphatic metastases have been reviewed. Ten of these patients had only one lymph node involved (NI), and 11 patients had metastases in more than one lymph node (N2-3). Four patients with N1 disease and 1 patient with N2-3 disease survived tumor free greater than forty months postoperatively. Radical cystectomy can produce long-term disease free survival in some patients with limited pelvic metastases.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/27385/1/0000416.pd
Genome-Wide Association Study of Genetic Predictors of Anti–Tumor Necrosis Factor Treatment Efficacy in Rheumatoid Arthritis Identifies Associations with Polymorphisms at Seven Loci
Sim-to-Real Model-Based and Model-Free Deep Reinforcement Learning for Tactile Pushing
Object pushing presents a key non-prehensile manipulation problem that is
illustrative of more complex robotic manipulation tasks. While deep
reinforcement learning (RL) methods have demonstrated impressive learning
capabilities using visual input, a lack of tactile sensing limits their
capability for fine and reliable control during manipulation. Here we propose a
deep RL approach to object pushing using tactile sensing without visual input,
namely tactile pushing. We present a goal-conditioned formulation that allows
both model-free and model-based RL to obtain accurate policies for pushing an
object to a goal. To achieve real-world performance, we adopt a sim-to-real
approach. Our results demonstrate that it is possible to train on a single
object and a limited sample of goals to produce precise and reliable policies
that can generalize to a variety of unseen objects and pushing scenarios
without domain randomization. We experiment with the trained agents in harsh
pushing conditions, and show that with significantly more training samples, a
model-free policy can outperform a model-based planner, generating shorter and
more reliable pushing trajectories despite large disturbances. The simplicity
of our training environment and effective real-world performance highlights the
value of rich tactile information for fine manipulation. Code and videos are
available at https://sites.google.com/view/tactile-rl-pushing/.Comment: Accepted by IEEE Robotics and Automation Letters (RA-L
Genome-Wide Association Study of Genetic Predictors of Anti–Tumor Necrosis Factor Treatment Efficacy in Rheumatoid Arthritis Identifies Associations with Polymorphisms at Seven Loci
Bostonia. Volume 4
Founded in 1900, Bostonia magazine is Boston University's main alumni publication, which covers alumni and student life, as well as university activities, events, and programs
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