142 research outputs found

    FPGA Based Massage Display System Improvement Using Scanning Technique To Minimize Power Consumption

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    This paper presents a field programmable gate array (FPGA) based embedded system for low power message display. Scanning technique is used to minimize the power consumption. The experiment is conducted on 30 seven segments where an field programmable gate array based intelligent controller scans all the display elements continuously at a certain speed to ensure only one display unit is on and other are off at a given time but human eyes cannot detect it. The test result shows the significant reduction of power consumption over static display system. That is very essential of power efficient solution for the portable electronic system

    ENHANCING DATABASE PERFORMANCE IN A DSS ENVIRONMENT VIA QUERY CACHING

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    A key element in all decision support systems is availability of sufficiently good and timely data to support the decision making process. Much research was, and is, devoted to data and information quality: attributes, assurance that quality data is used in the decision process, etc. In this paper we concentrate on a particular dimension of data availability and usage -the retrieval of data in a timely and decision enhancing manner. We propose to augment the decision support databases by an adaptive and efficient query cache. The cache contains snapshots of the decision support database, each being the answer to a recently invoked query. A snapshot can be reused by the originating user, or a different user, at a later time --provided the use of cached data leads to savings over the use of a new query, and these savings exceed the cost of using stale date. The proposed scheme is conceptually different from conventional data replication schemes. In data replication schemes the data items to be replicated and the protocols for concurrency control are defined at the system level. In our scheme the cache is populated dynamically and the snapshots it contains are refreshed only if the cost of using stale information is higher than cost of refreshing the snapshots. At the same time, users can still decide to refresh the stored snapshot, based on their own decision environment. Our scheme thus enhances the data retrievalprocess, while supporting a more efficient data retrieval at both the user level and the data warehouse leve

    Explaining Household Participation in Establishing Community Agreements on Conservation at Protected Areas-Indonesia

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    State based management approach to nature conservation has often failed to balance the goal of conservation and the goal to improve the livelihoods of local communities. A promising approach to deal with this problem is the concept of community participation in promoting agreements on nature conservation. The aim of this research was to explore the conservation problems and explain the process of household participation in establishing community agreements on conservation at Lore Lindu protected area. A qualitative analyze is applied to better understand the underlying conservation problems, while the quantitative analyze is based on probit model to determine factors influencing participation. The finding that more wealthy households are not more likely to participate, however, households with more social relation (social capital) and better access to political decision making (political capital) were more likely to be involved. In conclusion, the result showed that community agreement on conservation offer a considerable potential for reaching ecological goal, but attention has to be paid the interests of disadvantaged community members, who depend on natural resources for their livelihood. Keywords:  household participation, community agreements, protected area

    EFFECT OF FEEDING MILK REPLACER ON GROWTH PERFORMANCE OF YAK CALVES

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    ABSTRACT An investigation was carried out on 18 numbers of new bor

    The Safety and Efficacy of Laparoscopic Surgical Staging and Debulking of Apparent Advanced Stage Ovarian, Fallopian Tube, and Primary Peritoneal Cancers

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    The authors contend that laparoscopy can be used for diagnosis, triage and debulking of select patients with advanced ovarian, fallopian tube or primary peritoneal cancer

    Delta excitation in K^+-nucleus collisions

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    We present calculations for \Delta excitation in the (K^+,K^+) reaction in nuclei. The background from quasielastic K^+ scattering in the \Delta region is also evaluated and shown to be quite small in some kinematical regions, so as to allow for a clean identification of the \Delta excitation strength. Nuclear effects tied to the \Delta renormalization in the nucleus are considered and the reaction is shown to provide new elements to enrich our knowledge of the \Delta properties in a nuclear medium.Comment: 11 pages, 6 figures, LaTe

    Isolated hypercholesterolemia leads to steatosis in the liver without affecting the pancreas

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    Abstract Background Lipid accumulation in the liver and pancreas is primarily caused by combined hyperlipidemia. However, the effect of isolated hypercholesterolemia without hypertriglyceridemia is not fully described. Therefore, our aim was to investigate whether hypercholesterolemia alone leads to alterations both in hepatic and pancreatic lipid panel and histology in rats. Methods Male Wistar rats were fed with 2% cholesterol +0.25% cholate-supplemented diet or standard chow for 12 weeks. Blood was collected at weeks 0, 4, 8 and 12 to measure serum cholesterol and triglyceride levels. At week 12, both the pancreas and the liver were isolated for further histological and biochemical analysis. Hepatic and plasma fatty acid composition was assessed by gas chromatography. Expression of mRNA of major enzymes involved in saturated/unsaturated fatty acid synthesis was analyzed by qPCR. In separate experiments serum enzyme activities and insulin levels were measured at week 9. Results At week 12, rats fed with 2% cholesterol +0.25% cholate-supplemented diet were characterized by elevated serum cholesterol (4.09 ± 0.20 vs. 2.89 ± 0.22 mmol/L, *p < 0.05) while triglyceride (2.27 ± 0.05 vs. 2.03 ± 0.03 mmol/L) and glucose levels (5.32 ± 0.14 vs. 5.23 ± 0.10 mmol/L) remained unchanged. Isolated hypercholesterolemia increased hepatic lipid accumulation, hepatic cholesterol (5.86 ± 0.22 vs. 1.60 ± 0.15 ng/g tissue, *p < 0.05) and triglyceride contents (19.28 ± 1.42 vs. 6.78 ± 0.71 ng/g tissue, *p < 0.05), and hepatic nitrotyrosine level (4.07 ± 0.52 vs. 2.59 ± 0.31 ng/mg protein, *p < 0.05). The histology and tissue lipid content of the pancreas was not affected. Serum total protein level, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities remained unchanged in response to isolated hypercholesterolemia while serum alkaline phosphatase activity (ALP) significantly increased. Plasma insulin levels did not change in response to isolated hypercholesterolemia suggesting an intact endocrine function of the pancreas. Isolated hypercholesterolemia caused a significantly increased hepatic and serum fatty acid level associated with a marked alteration of fatty acid composition. Hepatic expression of Δ9-desaturase (SCD1) was increased 4.92×, while expression of Δ5-desaturase and Δ6-desaturase were decreased (0.447× and 0.577×, respectively) due to isolated hypercholesterolemia. Conclusions Isolated hypercholesterolemia leads to hepatic steatosis and marked alterations in the hepatic lipid profile without affecting the pancreas. Altered fatty acid profile might mediate harmful effects of cholesterol in the liver
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