120 research outputs found

    Moringa Oleifera Phytochemical Composition And The Influence Of Environmental Growing Conditions

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    Moringa oleifera is an important plant as it contains a large amount of necessary nutrients for humans including protein, vitamins, and minerals. It also could useful for other purposes such as biofuel, animal fodder, and as a water clarifier. In this work a M. oleifera ethanolic extract reconstituted in borate buffer was analyzed using absorbance, fluorescence, and capillary electrophoresis for the presumptive and quantitative measurement of the phytochemical isoquercetin. The absorbance and fluorescence data presumptively indicated that isoquercetin was present in the extract along with other phytochemicals. Capillary electrophoresis electropherogram data with the neutral marker mesityl oxide indicated that the species of interest on the electropherogram were anionic. A standard addition of isoquercetin using capillary electrophoresis separation resulted in a calculated extract concentration of 312 ± 42 µM isoquercetin. A repeat standard addition is necessary to increase precision of the isoquercetin concentration. Another aspect of this project was creating a UV supplemented, hydroponic growing model for M. oleifera in order to stimulate more phytochemical production. Prototype results were promising, however, the completed model grew plants with an abnormal morphology. Further testing is needed to determine the cause before plants grown with the model can be analyzed using the aforementioned techniques

    Community Journalism – A Study On The Mountain Times Publications

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    The Mountain Times Publications is a group of community newspapers in the High Country. These newspapers inform the members of the High Country communities about important news and events and the newspapers promote economic growth by connecting local businesses to community members. In the digital age the Mountain Times Publications, along with other community newspapers, are facing challenges including the loss of market dominance in their geographic locales, the loss of online advertising revenue to major search engines, and the high cost of printing. The Mountain Times relies on its traditional business model, relationships with patron readers, and locally–tailored content to remain a news source in the High Country. This project is a series of articles about the Mountain Times Publications group. The articles include a history on the Mountain Times Publications, what the newspaper group provides for its communities, what business model it follows, and the responsibilities of the community journalists. The newspaper group was used as a case study to explore community journalism

    The Antibacterial Efficacy Of Ethanolic Whole-Leaf Moringa Oleifera Sub-Fractions On Escherichia Coli

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    In an effort to provide safer alternative options to pharmaceutical-based antibacterial treatment for infection-induced preterm labor, we have previously used whole-leaf extracts and high performance liquid chromatography (HPLC)-isolated subfractions of hydroethanolic Moringa oleifera (MO) to screen the antibacterial efficacy of MO against Escherichia coli (E. coli), a leading cause of urinary tract infections associated with preterm labor. These earlier studies found the ethanolic whole-leaf extract as well as three subfractions out of eight, to be the most potent. Here, we test the potency of each sub-fraction as well as investigate whether the antibacterial effects of the most potent leaf sub-fractions act synergistically, using in vitro liquid broth assays in a dose-dependent manner. Of the eight sub-fraction screened, sub-fraction five exerted the most antibacterial efficacy against E. coli. No significant synergistic antibacterial activity was observed between subfractions four, five, and six. We conclude that the anti-bacterial activity of whole leaf M. oleifera is exerted by the potent subfractions in a non-synergistic manner. Ongoing studies in our lab are testing the antibacterial potential of MO whole seed extracts

    The Effects Of Social Status On Blame Judgments

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    Blame judgments are social acts that people use to regulate the behavior of others. Blame judgments are unique in that they are almost always directed at an agent. Because of this social aspect, blame judgments may be subject to certain social constraints such as hierarchy and status. The current study suggests that social status will affect judgments of blame. Additionally, the current study suggests that mental state inferences of intentionality, knowledge, and preventability may explain social statuses affect on judgments of blame. Data show that individuals high in social status (e.g. CEO) receive the highest amounts of blame for bringing about a negative event compared to individuals low in social status (e.g. Staff Member). Data also show that individuals high in social status were viewed as acting more intentionally, having more knowledge, and having a greater ability to prevent harm compared to individuals with low social status. The current study suggests that, going forward, moral psychological research ought to broaden its view of the path to blame to include not only factors originating from the event (e.g., amount of harm caused), or from the perceiver (e.g., attitudes and prejudices), but also the social situation in which blame judgments are rendered

    Whole genome sequence and manual annotation of Clostridium autoethanogenum, an industrially relevant bacterium

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    Clostridium autoethanogenum is an acetogenic bacterium capable of producing high value commodity chemicals and biofuels from the C1 gases present in synthesis gas. This common industrial waste gas can act as the sole energy and carbon source for the bacterium that converts the low value gaseous components into cellular building blocks and industrially relevant products via the action of the reductive acetyl-CoA (Wood-Ljungdahl) pathway. Current research efforts are focused on the enhancement and extension of product formation in this organism via synthetic biology approaches. However, crucial to metabolic modelling and directed pathway engineering is a reliable and comprehensively annotated genome sequence

    Legal Empowerment and Horizontal Inequalities after Conflict

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    This article explores whether legal empowerment can address horizontal inequalities in post-conflict settings, and, if so, how. It argues that legal empowerment has modest potential to reduce these inequalities. Nevertheless, there are risks that legal empowerment might contribute to a strengthening of group identities, reduction of social cohesion, and, in the worst case, triggering of conflict. It looks at how two legal empowerment programmes in Liberia navigated the tensions between equity and peace

    Study of the doubly charmed tetraquark T+cc

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    Quantum chromodynamics, the theory of the strong force, describes interactions of coloured quarks and gluons and the formation of hadronic matter. Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. Particles with an alternative quark content are known as exotic states. Here a study is reported of an exotic narrow state in the D0D0π+ mass spectrum just below the D*+D0 mass threshold produced in proton-proton collisions collected with the LHCb detector at the Large Hadron Collider. The state is consistent with the ground isoscalar T+cc tetraquark with a quark content of ccu⎯⎯⎯d⎯⎯⎯ and spin-parity quantum numbers JP = 1+. Study of the DD mass spectra disfavours interpretation of the resonance as the isovector state. The decay structure via intermediate off-shell D*+ mesons is consistent with the observed D0π+ mass distribution. To analyse the mass of the resonance and its coupling to the D*D system, a dedicated model is developed under the assumption of an isoscalar axial-vector T+cc state decaying to the D*D channel. Using this model, resonance parameters including the pole position, scattering length, effective range and compositeness are determined to reveal important information about the nature of the T+cc state. In addition, an unexpected dependence of the production rate on track multiplicity is observed

    The Cotton-Tail, Volume 01, 1906

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    Yearbook for the North Texas State Normal School in Denton, Texas includes photos of and information about the school, student body, professors, and organizations

    Evaluation of Concrete Bridge Deck Mixtures Using Shrinkage-Ring Tests [Summary]

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    Concrete is widely used in bridge construction because of its versatility, strength, durability, and low cost. It is a composite consisting of cement, water, coarse aggregates, fine aggregates, and admixtures to engineer the desired properties. During curing, concrete is subjected to changes in volume. These changes can cause cracking, which can allow corrosion and reduce the life of the deck. Maintaining the condition of bridge decks is one of the costliest components of bridge maintenance. There is a need to evaluate the effectiveness of various concrete mixes using different ways to mitigate shrinkage
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