415 research outputs found

    Managing multi-user smart environments through BLE based system

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    Smart and intelligent environment systems will be increasingly important in everyday life. Designing and developing them requires to face some research problems. A properly management of different types of sensors is very challenging but necessary in this area. A new wave of smart devices and systems brings customizable benefits for different users. Example of this are smart-phones, smartbands, smart-watches, smart homes or smart cars. A successful combination of them bring interesting everyday life benefits. One of the most important problems that needs to be solved in a practical way is the so called "multi-users problem". Addressing it is fundamental for moving forward into a successful adoption in everyday life of the smart technologies mentioned before. Associating users and services in a spaces in which there are many possible combination of them, is a core task. This work proposes a novel system based on interactions between Android smart-phones and Bluetooth Low Energy (BLE) technology beacons to deal with the challenges of a multi-user smart environment. We process data collected in a smart environment populated by many users. In particular we associate data collected and beacons. This processing generates database log traces containing measurements related to single user activities, helping in better matching services with users

    Ecklonia Maxima Extract Effect in Tissue Regeneration of Symbionts at in Vivo Heteroplasmic Grafting of Some Tomatoes

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    The research was conducted to determine the Ecklonia maxima extract effect in the symbiont accretion at the in vivo heteroplasmic grafting of some tomatoes. E. maxima or sea bamboo is a seaweed used for obtaining of organic extracts used as stimulators in horticulture because consists the natural plant hormones such as auxins and cytokinins which have optimal role in cell division, important activity for tissue regeneration. The experimental variants were grafted plants, combinations between different symbionts, cultivar fragments from Lycopersicon esculentum specie. The symbionts were two scions, F1 hybrids, 'Siriana' (Romanian cultivar), 'Abellus' (Dutch cultivar) and two rootstocks, 'Buzău' variety (Romanian cultivar), 'Emperador' F1 hybrid (Dutch cultivar). The algae extract used had auxins (11 mg/L) and cytokinins (0.3 mg/L). Two treatments were applied before grafting on scion and rootstock, 1 mL/500 mL water and a treatment at grafting on soil, 5 mL/L water. Control variant was without hormone extract. Determinations, observations and interpretations of the algae effect were made on symbionts. The best results on tissue regeneration were obtained in plants treated with sea bamboo extract compared to untreated control plants. The E. maxima extract influenced the tissue regeneration

    IL MONASTERO DELLA VISITAZIONE DI MILANO (XVIII-XIX SECOLO). RELIGIONE, POLITICA, SOCIETÀ

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    The purpose of this research is to go over and to examine the history of Milan\u2019s nunnery of Visitation, called Santa Sofia, between 18th and 19th century. The large amount of documents kept into the archive of the convent allowed to investigate many aspects, especially those concerning the bonds with the others convents of the same order and with the Milan\u2019s society. Other important aspects investigated are those concerning the nuns' relationships with the political power and the analysis of religious practices and cultural aspects. From the middle 18th century Santa Sofia joined in the wide-ranging process of catholic missionary openness

    Qualitative Interviews of Romanian Key Informants Guiding a Preliminary Health Needs Assessment of Romanian Immigrants in Southern California

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    Background: Current literature suggests that immigrant populations face greater challenges in regards to health and healthcare which are caused by a variety of factors, including language, socioeconomic status, acculturation, and health beliefs. The scope of this research was to conduct a preliminary health needs assessment of the Romanian-American population as a first step towards creating culturally tailored health programs to meet their needs. Methods and Results: Qualitative data was acquired through semistructured interviews with key stakeholders (n= 5) in the Romanian health care system, in Romania, revealing a total of 5 themes. The data was compiled and analyzed to discover the main health beliefs that contribute to the health behaviors present in this population. Conclusion: These data begin to identify important health beliefs and risk factors unique to this population and clarify priorities for future research in the U.S

    Conductance fluctuations at the integer quantum Hall plateau transition

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    We study numerically conductance fluctuations near the integer quantum Hall effect plateau transition. The system is presumed to be in a mesoscopic regime, with phase coherence length comparable to the system size. We focus on a two-terminal conductance G for square samples, considering both periodic and open boundary conditions transverse to the current. At the plateau transition, G is broadly distributed, with a distribution function close to uniform on the interval between zero and one in units of e^2/h. Our results are consistent with a recent experiment by Cobden and Kogan on a mesoscopic quantum Hall effect sample.Comment: minor changes, 5 pages LaTex, 7 postscript figures included using epsf; to be published Phys. Rev. B 55 (1997

    Amino acid isotope discrimination factors for a carnivore: physiological insights from leopard sharks and their diet

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    Stable isotopes are important ecological tools, because the carbon and nitrogen isotopic composition of consumer tissue reflects the diet. Measurements of isotopes of individual amino acids can disentangle the effects of consumer physiology from spatiotemporal variation in dietary isotopic values. However, this approach requires knowledge of assimilation patterns of dietary amino acids. We reared leopard sharks (Triakis semifasciata) on diets of squid (Loligo opalescens; 1250 days; control sharks) or squid then tilapia (Oreochromis sp.; switched at 565 days; experimental sharks) to evaluate consumer-diet discrimination factors for amino acids in muscle tissue. We found that control sharks exhibited lower nitrogen isotope discrimination factors (∆15N) than most previous consumer studies, potentially because of urea recycling. Control sharks also had large carbon isotope discrimination factors (∆13C) for three essential amino acids, suggesting microbial contributions or fractionation upon assimilation. Compared to controls, experimental sharks exhibited higher ∆13C values for four amino acids and ∆15N values for seven amino acids, corresponding with differences between diets in δ13C and δ15N values. This suggests that not all amino acids in experimental sharks had reached steady state, contrary to the conclusion of a bulk isotope study of these sharks. Our results imply that (1) the magnitude of a shift in dietary δ13C and δ15N values temporarily influences the appearance of discrimination factors; (2) slow turnover of amino acid isotopes in elasmobranch muscle precludes inferences about seasonal dietary changes; (3) elasmobranch discrimination factors for amino acids may be affected by urea recycling and microbial contributions of amino acids

    Descriptive Characteristics and Risk Factors for Trauma: An Evidence-Based Practice Project

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    This Evidence-Based Practice (EBP) project examined the following question: What are the perspectives, experiences, and self-reports of adult individuals, groups, or populations who have MCI or report problems with Functional Cognition (and / or their caregivers)
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