323 research outputs found

    J-convexity constants

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    We introduce the JJ-convexity constants on Banach spaces and give some properties of the constants. We give the relations between the JJ-convexity constants and the nn-th von Neumann-Jordan constants. Using the quantitative indices we estimate the value of JJ-convexity constants in Orlicz spaces

    2,4-Di-tert-butyl-6-[(R/S)-1-(3,5-di-tert-butyl-2-hy­droxy­phen­yl)eth­yl]phenyl [(1R,4S)-7,7-dimethyl-2-oxobicyclo­[2.2.1]heptan-1-yl]methane­sulfonate

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    The asymmetric unit of the title compound, C40H60O5S, comprises two diastereomers related, except for the chiral camphor groups, by a pseudo-inversion centre. In both diasteromers, the camphor sulfate moiety maintained the absolute configuartion (R,S) of the precursor. However, the absolute configurations at the methine C atoms are of opposite chirality. Both mol­ecules reveal intra­molecular O—H⋯O hydrogen bonds, whereas van der Waals inter­actions define the crystal packing

    On a property of ϕ-variational modular spaces

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    Maligranda pointed out whether condition (B.1) is satisfied in the variational modular space XρX_{\rho}^{*} is an open problem. We will answer this open problem in XρX_{\rho}^{*\prime}, a subspace of XρX_{\rho}^{*}. As a consequence this modular space can XρX_{\rho}^{*\prime} be FF-normed

    Automated Dilated Spatio-Temporal Synchronous Graph Modeling for Traffic Prediction

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    Accurate traffic prediction is a challenging task in intelligent transportation systems because of the complex spatio-temporal dependencies in transportation networks. Many existing works utilize sophisticated temporal modeling approaches to incorporate with graph convolution networks (GCNs) for capturing short-term and long-term spatio-temporal dependencies. However, these separated modules with complicated designs could restrict effectiveness and efficiency of spatio-temporal representation learning. Furthermore, most previous works adopt the fixed graph construction methods to characterize the global spatio-temporal relations, which limits the learning capability of the model for different time periods and even different data scenarios. To overcome these limitations, we propose an automated dilated spatio-temporal synchronous graph network, named Auto-DSTSGN for traffic prediction. Specifically, we design an automated dilated spatio-temporal synchronous graph (Auto-DSTSG) module to capture the short-term and long-term spatio-temporal correlations by stacking deeper layers with dilation factors in an increasing order. Further, we propose a graph structure search approach to automatically construct the spatio-temporal synchronous graph that can adapt to different data scenarios. Extensive experiments on four real-world datasets demonstrate that our model can achieve about 10% improvements compared with the state-of-art methods. Source codes are available at https://github.com/jinguangyin/Auto-DSTSGN

    2,4-Di-tert-butyl-6-[1-(3,5-di-tert-butyl-2-hydroxy­phen­yl)eth­yl]phenyl 4-methyl­benzene­sulfonate

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    The title compound, C37H52O4S, was obtained by the reaction of 6,6′-(ethane-1,1-di­yl)bis­(2,4-di-tert-butyl­phenol) and 4-methyl­benzene-1-sulfonyl chloride. The mol­ecular conformation is stabilized by an intra­molecular O—H⋯O hydrogen bond. Two of the tert-butyl groups are disordered over two sets of sites with occupancies 0.530 (15)/0.470 (15) and 0.615 (11)/0.385 (11)

    Spore Powder of Ganoderma lucidum Improves Cancer-Related Fatigue in Breast Cancer Patients Undergoing Endocrine Therapy: A Pilot Clinical Trial

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    The fatigue prevalence in breast cancer survivors is high during the endocrine treatment. However, there are few evidence-based interventions to manage this symptom. The aim of this study was to investigate the effectiveness of spore powder of Ganoderma lucidum for cancer-related fatigue in breast cancer patients undergoing endocrine therapy. Spore powder of Ganoderma lucidum is a kind of Basidiomycete which is a widely used traditional medicine in China. 48 breast cancer patients with cancer-related fatigue undergoing endocrine therapy were randomized into the experimental or control group. FACT-F, HADS, and EORTC QLQ-C30 questionnaires data were collected at baseline and 4 weeks after treatment. The concentrations of TNF-α, IL-6, and liver-kidney functions were measured before and after intervention. The experimental group showed statistically significant improvements in the domains of physical well-being and fatigue subscale after intervention. These patients also reported less anxiety and depression and better quality of life. Immune markers of CRF were significantly lower and no serious adverse effects occurred during the study. This pilot study suggests that spore powder of Ganoderma lucidum may have beneficial effects on cancer-related fatigue and quality of life in breast cancer patients undergoing endocrine therapy without any significant adverse effect

    (E)-N-[2-(3,5-Di-tert-butyl-2-hydroxy­benzyl­ideneamino)cyclo­hexyl]-4-methyl­benzene­sulfonamide

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    In the crystal structure of the title compound, C28H40N2O3S, there are two mol­ecules per asymmetric unit; in each of these mol­ecules, the cyclo­hexyl rings adopt chair conformations. The dihedral angles between the benzene rings are 16.89 (9) and 34.11 (9)°. Each mol­ecule contains an intra­molecular O—H⋯N hydrogen bond, and inter­molecular N—H⋯O hydrogen bonds are also present. In both mol­ecules, the methyl groups of one tert-butyl group are disordered over two positions; the site-occupancy factors in both cases are ca 0.6 and 0.4

    Simultaneous Determination of Matrine and Tinidazole in Compound Lotion by RH-HPLC Method

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    A simple, sensitive, and accurate RP-HPLC coupled with UV detector method was developed and validated for simultaneous determination of matrine and tinidazole in compound lotion. The chromatographic separation of the two compounds was carried out with a SinoChoom ODS-BP C(18) column (5 μm, 4.6 mm × 200 mm) analytical column, using a mobile phase consisting of 0.025 mol/L potassium dihydrogen phosphate (containing triethylamine 0.05%, v/v) and acetonitrile (80 : 20, v/v) at a flow rate of 1.0 mL/min. The detection was monitored at 210 and 310 nm for matrine and tinidazole, respectively. Total run time was 12 min, and the column was maintained at 25°C. The excipients in the compound lotion did not interfere with the drug peaks. The calibration curves of matrine and tinidazole were fairly linear over the concentration ranges of 10.0–100.0 μg/mL (r = 0.9954) and 20.0–200.0 μg/mL (r = 0.9968), respectively. The RSD of both the intraday and interday variations was below 1.5% for matrine and tinidazole. The proposed HPLC method was validated according to International Conference on Harmonisation and proved to be suitable for the simultaneous determination of matrine and tinidazole in compound lotion

    Diffusion tensor imaging and its application in navigation assisted surgery

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    Navigation-assisted surgery is being studied and used by more and more doctors because of its high success rate, and many techniques are needed, among which diffusion tensor imaging (DTI) plays an important role. The navigation assisted surgery system integrated with DTI will be more perfect and powerful. In order to prove this, we first successfully made DTI images of patients in 3D Slicer. After careful observation and study, we found that in navigation assisted surgery, doctors can use DTI to observe the location of brain tissue more clearly. This paper mainly studies the principle and data formula of DTI, and compares and summarizes how the nerve bundle image generated by DTI plays a role in navigation assisted surgery. The method proposed is very workable for doctors, and the effect of operation is also very easy to see
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