32,946 research outputs found

    Using Dance/Movement Therapy to Improve Mental Health of Modern Chinese People

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    This article introduces dance/movement therapy as a unique psychotherapeutic modality in treating Chinese clients facing depression, isolation, and other mental health issues in the 21st century. The article shows how dance/movement therapy can help Chinese clients reduce psychological difficulties produced by the conflict of needing to individuate in a modern society but not having enough social and cultural support for this individuation. It also discusses how Kestenberg Movement Profile and its developmental movement concepts can support Chinese clients to reintegrate developmental rhythms that help with individuation. Lastly, the article gives examples of how group therapy can help Chinese clients overcome the barrier of expressing themselves authentically in front of others

    The order p8p^8 mesonic chiral Lagrangian

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    We derive the chiral Lagrangian at next-to-next-to-next-to-leading order (NNNLO) for a general number NfN_f of light quark flavours as well as for Nf=2,3N_f=2,3. We enumerate the contact terms separately. We also discuss the cases where some of the external fields are not included. An example of a choice of Lagrangian is given in the supplementary material.Comment: 23 pages, The file basis.pdf contains the full basis. Minor misprints corrected w.r.t. v

    Active Tactile Sensing for Texture Perception in Robotic Systems

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    This thesis presents a comprehensive study of tactile sensing, particularly on the prob- lem of active texture perception. It includes a brief introduction to tactile sensing technology and the neural basis for tactile perception. It follows the literature review of textural percep- tion with tactile sensing. I propose a decoding and perception pipeline to tackle fine-texture classification/identification problems via active touching. Experiments are conducted using a 7DOF robotic arm with a finger-shaped tactile sensor mounted on the end-effector to per- form sliding/rubbing movements on multiple fabrics. Low-dimensional frequency features are extracted from the raw signals to form a perceptive feature space, where tactile signals are mapped and segregated into fabric classes. Fabric classes can be parameterized and sim- plified in the feature space using elliptical equations. Results from experiments of varied control parameters are compared and visualized to show that different exploratory move- ments have an apparent impact on the perceived tactile information. It implies the possibil- ity of optimising the robotic movements to improve the textural classification/identification performance

    Scaling Up Dataset Distillation to ImageNet-1K with Constant Memory

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    Dataset distillation methods aim to compress a large dataset into a small set of synthetic samples, such that when being trained on, competitive performances can be achieved compared to regular training on the entire dataset. Among recently proposed methods, Matching Training Trajectories (MTT) achieves state-of-the-art performance on CIFAR-10/100, while having difficulty scaling to ImageNet-1k dataset due to the large memory requirement when performing unrolled gradient computation through back-propagation. Surprisingly, we show that there exists a procedure to exactly calculate the gradient of the trajectory matching loss with constant GPU memory requirement (irrelevant to the number of unrolled steps). With this finding, the proposed memory-efficient trajectory matching method can easily scale to ImageNet-1K with 6x memory reduction while introducing only around 2% runtime overhead than original MTT. Further, we find that assigning soft labels for synthetic images is crucial for the performance when scaling to larger number of categories (e.g., 1,000) and propose a novel soft label version of trajectory matching that facilities better aligning of model training trajectories on large datasets. The proposed algorithm not only surpasses previous SOTA on ImageNet-1K under extremely low IPCs (Images Per Class), but also for the first time enables us to scale up to 50 IPCs on ImageNet-1K. Our method (TESLA) achieves 27.9% testing accuracy, a remarkable +18.2% margin over prior arts.Comment: ICLR 2023 submission link: https://openreview.net/forum?id=dN70O8pmW

    Pair Production of Doubly-Charged Scalars: Neutrino Mass Constraints and Signals at the LHC

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    We study the pair production of doubly charged Higgs bosons at the Large Hadron Collider (LHC), assuming the doubly charged Higgs to be part of an SU(2)_L triplet which generates Majorana masses for left-handed neutrinos. Such pair-production has the advantage that it is not constrained by the triplet vacuum expectation value, which tends to make the single production rate rather small. We point out that, in addition to the Drell-Yan (DY) production mechanism, two-photon processes also contribute to H++H++ production at a level comparable to the QCD corrections to the DY channel. Decays of the doubly charged Higgs into both the l+l+ and W+W+ modes are studied in detail to optimize the signal observation over the backgrounds. Doubly charged scalars should be observable at the LHC with 300 fb^-1 integrated luminosity in the ll channel upto the mass range of 1 TeV even with a branching fraction of about 60 %, and in the WW channel upto a mass of 700 GeV. Such a doubly charged Higgs, if it is a member of a triplet generating neutrino masses,cannot be long-lived on the scale of collider detectors although it might lead to a displaced secondary vertex during its decay if it is lighter than about 250 GeV.Comment: revtex4, 23 pages, 14 figures, version published in Physical Review

    Study of the K1(1270)−K1(1400)K_1(1270)-K_1(1400) mixing in the decays B→J/ΨK1(1270),J/ΨK1(1400)B\to J/\Psi K_1(1270), J/\Psi K_1(1400)

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    We studied the B meson decays B→J/ΨK1(1270,1400)B\to J/\Psi K_1(1270,1400) in the pQCD approach beyond the leading order. With the vertex corrections and the NLO Wilson coefficients included, the branching ratios of the considered decays are Br(B+→J/ΨK1(1270)+)=1.76−0.69+0.65×10−3,Br(B+→J/ΨK1(1400)+)=7.03−2.52+2.70×10−4Br(B^+\to J/\Psi K_1(1270)^+)=1.76^{+0.65}_{-0.69}\times10^{-3}, Br(B^+\to J/\Psi K_1(1400)^+)=7.03^{+2.70}_{-2.52}\times10^{-4}, and Br(B0→J/ΨK1(1270)0)=(1.63−0.64+0.60)×10−3Br(B^0\to J/\Psi K_1(1270)^0)=(1.63^{+0.60}_{-0.64})\times10^{-3} with the mixing angle θK1=33∘\theta_{K_1}=33^\circ, which can agree well with the data or the present experimental upper limit within errors. So we support the opinion that θK1∼33∘\theta_{K_1}\sim33^\circ is much more favored than 58∘58^{\circ}. Furthermore, we also give the predictions for the polarization fractions, direct CP violations from the different polarization components, the relative phase angles for the considered decays with the mixing angle θK1=33∘\theta_{K_1}=33^\circ and 58∘58^\circ, respectively. The direct CP violations of the two charged decays B+→J/ΨK1(1270,1400)+B^+\to J/\Psi K_1(1270,1400)^+ are very small (10−4∼10−5)(10^{-4}\sim10^{-5}), because there is no weak phase until up to O(λ4)\mathcal{O}(\lambda^4) with the Wolfenstein parameter λ=0.22537\lambda=0.22537. These results can be tested at the running LHCb and forthcoming Super-B experiments.Comment: 14 pages,3 figures,to appear in EPJ
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