12 research outputs found

    Transmission of multiple description and layered video over an EGPRS wireless network

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    We investigate the ability of multiple descriptions (MD) and layered coding to improve the quality of video transmitted over EGPRS networks. One-layer video sent over a single channel on such a network has a fairly sharp quality transition, depending on a user’s location. Either the video can be transmitted reliably (if the video rate is less than or equal to what the channel can sustain), or it is subjected to many lost packets. In this system, MD and layered video may offer two ways to improve video quality beyond that of the one-layer video. First, each sub-stream can be sent on a separate channel, essentially doubling the assigned bandwidth and increasing video quality. Second, MD and layered video are more error resilient than one-layer video, potentially improving the video quality seen by users in poor locations. We find that for the system scenarios considered, one- and two-layer coding outperform MD coding, depending upon the number of wireless channels used for the video transport. 1

    The Method of Subsuper Solutions for Weighted p(r)-Laplacian Equation Boundary Value Problems

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    This paper investigates the existence of solutions for weighted p(r)-Laplacian ordinary boundary value problems. Our method is based on Leray-Schauder degree. As an application, we give the existence of weak solutions for p(x)-Laplacian partial differential equations

    Existence and Asymptotic Behavior of Solutions for Weighted <inline-formula> <graphic file="1029-242X-2009-926518-i1.gif"/></inline-formula>-Laplacian System Multipoint Boundary Value Problems in Half Line

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    <p/> <p>This paper investigates the existence and asymptotic behavior of solutions for weighted <inline-formula> <graphic file="1029-242X-2009-926518-i2.gif"/></inline-formula>-Laplacian system multipoint boundary value problems in half line. When the nonlinearity term <inline-formula> <graphic file="1029-242X-2009-926518-i3.gif"/></inline-formula> satisfies sub-(<inline-formula> <graphic file="1029-242X-2009-926518-i4.gif"/></inline-formula>) growth condition or general growth condition, we give the existence of solutions via Leray-Schauder degree.</p

    Existence and Asymptotic Behavior of Solutions for Weighted p(t)-Laplacian System Multipoint Boundary Value Problems in Half Line

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    This paper investigates the existence and asymptotic behavior of solutions for weighted p(t)-Laplacian system multipoint boundary value problems in half line. When the nonlinearity term f(t,&#x22C5;,&#x22C5;) satisfies sub-(p--1) growth condition or general growth condition, we give the existence of solutions via Leray-Schauder degree

    The Method of Subsuper Solutions for Weighted <inline-formula> <graphic file="1029-242X-2008-621621-i1.gif"/></inline-formula>-Laplacian Equation Boundary Value Problems

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    Abstract This paper investigates the existence of solutions for weighted -Laplacian ordinary boundary value problems. Our method is based on Leray-Schauder degree. As an application, we give the existence of weak solutions for -Laplacian partial differential equations.</p

    Non‐invasive omics analysis delineates molecular changes in water‐only fasting and its sex‐discriminating features in metabolic syndrome patients

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    Abstract Fasting has been grown in popularity with multiple potential benefits. However, very few studies dynamically monitor physiological and pathological changes during long‐term fasting using noninvasive methods. In the present study, we recruited 37 individuals with metabolic syndrome to engage in a 5‐day water‐only fasting regimen, and simultaneously captured the molecular alterations through urinary proteomics and metabolomics. Our findings reveal that water‐only fasting significantly mitigated metabolic syndrome‐related risk markers, such as body weight, body mass index, abdominal circumference, blood pressure, and fasting blood glucose levels in metabolic syndrome patients. Indicators of liver and renal function remained within the normal range, with the exception of uric acid. Notably, inflammatory response was inhibited during the water‐only fasting period, as evidenced by a decrease in the human monocyte differentiation antigen CD14. Intriguingly, glycolysis, tricarboxylic acid cycle, and oxidative phosphorylation underwent a sex‐dependent reprogramming throughout the fasting period, whereby males exhibited a greater upregulation of carbohydrate metabolism‐related enzymes than females. This disparity may be attributed to evolutionary pressures. Collectively, our study sheds light on the beneficial physiological effects and novel dynamic molecular features associated with fasting in individuals with metabolic syndrome using noninvasive methods
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