2,682 research outputs found

    Biologically active properties of plant extracts in cosmetic emulsions

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    Describes biologically active properties waters plant extracts of domestic herbaceous species as a part cosmetic emulsion in this article. In particular, the antioxidant features related to vitamins, flavonoids, coloring, extractive and tannins were reported. The following research methods as qualitative analysis on groups of biologically active substances, thin-layer chromatography, titrimetry and photometry were used in the work. The ability of extracts to influence the physico-chemical, organoleptic and antioxidant properties of cosmetic emulsion samples was established. The ability of the extracts to exhibit antioxidant and prooxidant effects in cosmetic emulsion samples was determined. This article represents a contribute in the identification of plant extracts and their use as biologically active additives in cosmetic emulsion

    Sun-synchronous highly elliptical orbits using low-thrust propulsion

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    Due to restrictions within the current architecture of the global observing system (GOS), space-based remote sensing of Earth suffers from an acute data-deficit over the critical polar-regions. Currently, observation of high-latitude regions is conducted using composite images from spacecraft in geostationary (GEO) and low-Earth orbits (LEOs) [1]. However, the oblique viewing geometry from GEO-based systems to latitudes above around 55 deg [2] and the insufficient temporal resolution of spacecraft in LEO means there is currently no source of continuous imagery for polar-regions obtained with a data refresh rate of less than 15 minutes, as is typically available elsewhere for meteorological observations

    REMEDIES FOR THE CRISIS AND CORONAVIRUS-INDUCED INSOLVENCY: WHAT LEGAL "WEAPONS" ARE AVAILABLE TO FIGHT THIS "WAR"?

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    This paper aims to define certain rules that may accompany insolvent enterprises and over-indebted households in post-pandemic recovery. At this time, the crucial need to provide entrepreneurs, creditors, debtors, and consumers with certainties cannot be delayed. In the wake of the COVID-19 pandemic, various countries are adopting measures to change the application of their insolvency laws. The Virus was circulating in Italy before spreading to all other European countries, therefore the Italian government had to adopt urgent measures, which drastically impacted insolvency and collective procedures, inter alia. The paper focuses on the legislative provisions adopted by the Italian government as compared to the recent communication of the European Commission of 19 March 2020 ("The new temporary Framework for State aid measures to support the economy in the current COVID-19 outbreak") and to the Directive (U.E.) 2019/1023 on restructuring and insolvency. In light of the foregoing, two solutions will be formulated that may be immediately adopted in support of the debt of enterprises and households to ensure the successful recovery of solvency

    The U wave and the M cell

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    The improved performance and reliability of dual functionality filters having combined hydrophilic / hydrophobic membrane characteristics

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    Bright spots in the darkness of cancer: A review of starfishes-derived compounds and their anti-tumor action

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    The fight against cancer represents a great challenge for researchers and, for this reason, the search for new promising drugs to improve cancer treatments has become inevitable. Oceans, due to their wide diversity of marine species and environmental conditions have proven to be precious sources of potential natural drugs with active properties. As an example, in this context several studies performed on sponges, tunicates, mollusks, and soft corals have brought evidence of the interesting biological activities of the molecules derived from these species. Also, echinoderms constitute an important phylum, whose members produce a huge number of compounds with diverse biological activities. In particular, this review is the first attempt to summarize the knowledge about starfishes and their secondary metabolites that exhibited a significant anticancer effect against different human tumor cell lines. For each species of starfish, the extracted molecules, their effects, and mechanisms of action are described

    Filling of mater-BI with nanoclays to enhance the biofilm rigidity

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    We investigated the efficacy of several nanoclays (halloysite, sepiolite and laponite) as nanofillers for Mater-Bi, which is a commercial bioplastic extensively used within food packaging applications. The preparation of Mater-Bi/nanoclay nanocomposite films was easily achieved by means of the solvent casting method from dichloroethane. The prepared bio-nanocomposites were characterized by dynamic mechanical analysis (DMA) in order to explore the effect of the addition of the nanoclays on the mechanical behavior of the Mater-Bi-based films. Tensile tests found that filling Mater-Bi with halloysite induced the most significant improvement of the mechanical performances under traction force, while DMA measurements under the oscillatory regime showed that the polymer glass transition was not affected by the addition of the nanoclay. The tensile properties of the Mater-Bi/halloysite nanotube (HNT) films were competitive compared to those of traditional petroleum plastics in terms of the elastic modulus and stress at the breaking point. Both the mechanical response to the temperature and the tensile properties make the bio-nanocomposites appropriate for food packaging and smart coating purposes. Here, we report a preliminary study of the development of sustainable hybrid materials that could be employed in numerous industrial and technological applications within materials science and pharmaceutics

    Implementation of the Lasater Clinical Judgment Rubric as a Progress Review Tool

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    The organization determined there was a lack of a standardized progress review tool to objectively evaluate nurses’ clinical judgment during orientation. Further assessment determined gaps in communication between the preceptors and unit-based nursing education specialists (NESs), and a perceived lack of value in progress reviews. Tanner’s (2006) review of nearly 200 nursing research articles determined a nurse’s clinical judgments impact patient outcomes, making it imperative that organizations ensure their nurses have adequate clinical judgment to protect patients. Lasater’s clinical judgment rubric (LCJR), based on Tanner’s (2006) clinical judgment model was the only published tool found for assessing nurses’ clinical judgment. A pilot project aims to implement the LCJR as a progress review tool to improve communication between preceptors and NESs, perceived value of the progress review process, and objective evaluation of nurse orientees’ clinical judgment. The evidence demonstrates the LCJR is a valid and reliable tool which provides objective evaluation of a nurse’s clinical judgment, a shared language, and value to the progress review process. NESs will educate preceptors on six pilot units for the use of the LCJR as a progress review tool, then trial the LCJR on the units for three months with newly hired nurses. Surveys designed to measure the three outcomes will be administered prior to implementation and three months after implementation to determine change. Qualitative data collected from open-ended questions on the post-pilot survey will provide data triangulation for quantitative data. If the LCJR is successful in improving value, communication, and objective evaluation, the plan is to implement across the department of nursing as a standard evaluation process for nurse orientees. The LCJR and Tanner’s (2006) clinical judgment model would be integrated into preceptor training across the department

    First Amendment - Alameda Books v. City of Los Angeles

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    The First Amendment to the United States Constitution protects freedom of speech. Courts categorize government restrictions of speech as either content based or content neutral. Content-based regulations restrict speech because of the specific idea or message conveyed. Because content-based regulations greatly restrain a person\u27s right to free speech, they must serve a compelling government interest and be narrowly tailored to accomplish that interest. Content-neutral regulations, on the other hand, regulate conduct that indirectly impacts speech. In order to pass muster, content-neutral regulations must advance a significant state interest unrelated to the suppression of speech and not substantially burden more speech than necessary to further that interest. Content-neutral restrictions often regulate the time, place, and manner of protected speech. Zoning ordinances enacted to limit the time, place, and manner for certain categories of speech are therefore generally characterized as content-neutral restrictions. In determining the validity of zoning regulations that restrict adult entertainment, the courts apply the intermediate scrutiny standard. In Alameda Books v. City of Los Angeles, (hereinafter, City ) the Ninth Circuit addressed the issue of whether a Los Angeles zoning ordinance regulating adult businesses constituted a legitimate content-neutral regulation

    First Amendment - Alameda Books v. City of Los Angeles

    Get PDF
    The First Amendment to the United States Constitution protects freedom of speech. Courts categorize government restrictions of speech as either content based or content neutral. Content-based regulations restrict speech because of the specific idea or message conveyed. Because content-based regulations greatly restrain a person\u27s right to free speech, they must serve a compelling government interest and be narrowly tailored to accomplish that interest. Content-neutral regulations, on the other hand, regulate conduct that indirectly impacts speech. In order to pass muster, content-neutral regulations must advance a significant state interest unrelated to the suppression of speech and not substantially burden more speech than necessary to further that interest. Content-neutral restrictions often regulate the time, place, and manner of protected speech. Zoning ordinances enacted to limit the time, place, and manner for certain categories of speech are therefore generally characterized as content-neutral restrictions. In determining the validity of zoning regulations that restrict adult entertainment, the courts apply the intermediate scrutiny standard. In Alameda Books v. City of Los Angeles, (hereinafter, City ) the Ninth Circuit addressed the issue of whether a Los Angeles zoning ordinance regulating adult businesses constituted a legitimate content-neutral regulation
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