87,219 research outputs found

    Biotechnology for developing-country agriculture: problems and opportunities

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    Contents: Brief 1. Overview / Gabrielle J. Persley and John J. Doyle Brief 2. Biotechnology and food and nutrition needs / Richard Flavell Brief 3. Biotechnology and animal vaccines / W. Ivan Morrison Brief 4. The role of the private sector / Clive James and Anatole Krattiger Brief 5. Disentangling risk issues / Klaus M. Leisinger Brief 6. Safe use of biotechnology / Calestous Juma and Aarti Gupta Brief 7. Intellectual property protection / John H. Barton Brief 8. Research policy and management issues / Joel I. Cohen, Cesar Falconi, and John Komen Brief 9. Developing appropriate policies / Per Pinstrup-Andersen [IFPRI staff] Brief 10. Letter to a minister / Gabrielle J. Persley.Biotechnology Developing countries., Agricultural biotechnology Developing countries.,

    A Behind the Scenes Look at Building an Architecture Model

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    On weekdays during the summer, Gabrielle Porter \u2720 spent most of her time focused on perfection. It came with the nature of her internship at a small architecture firm consistently ranked among the top in the nation where her main responsibility was building scaled models of the some of the firms current architecture projects

    Evaluation, feedback, equity: a challenge in education

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    4siopenopenMichele Corsi, Pier Giuseppe Rossi, Lorella Giannandrea, Gabrielle E. MillerCorsi, Michele; Rossi, Pier Giuseppe; Giannandrea, Lorella; Miller, Gabrielle E

    Person to Person in Ireland

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    While still in the midst of their study abroad experiences, students at Linfield College write reflective essays. Their essays address issues of cultural similarity and difference, compare lifestyles, mores, norms, and habits between their host countries and home, and examine changes in perceptions about their host countries and the United States. In this essay, Gabrielle Leif describes her observations during her study abroad program in Galway, Ireland

    Holes In The Sea

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    Cognitive, Psychological, and Neurological Effects of Early Life Trauma and the Impact on Adoptees

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    Undergraduate Theoretical Proposa

    Toll v. Dist. Ct. (Gilman), 135 Nev., Advanced Opinion 58 (December 5, 2019)

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    A blogger claimed that his sources are protected under NRS 49.275. The court held that digital media is protected, but did not address whether a blogger is protected. The district court did not err in allowing discovery to determine whether the blogger acted with actual malice

    Recovery of Water and Salt from Hyper-Saline Mine Water using Freeze Crystallization

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    The Freezerbacks researched, designed, and economically evaluated a full-scale freeze crystallization process as well as two alternative full-scale processes: 5 stage multiple effect evaporation and reverse osmosis. All three processes were designed to treat hyper-saline mine water that was sent into evaporation pond systems. These systems were designed for Freeport-McMoRan’s mines that need to treat impacted water. The Freeport-McMoRan copper mine in Miami, Arizona was visited in order to gain insight about the problem. The mine is no longer actively mining copper and is in the process of reclaiming land used. An essential part of restoring the land is treating impacted water that is currently being recirculated throughout the process before discharging. Current methods, evaporation ponds, are neither time nor cost effective. Ultimately, the water needs to be purified to the EPA standard of the maximum concentration level of sulfates (250 mg/L). After the feed has been processed, a waste stream will be disposed of via existing evaporation ponds. The deciding factor between the processes is the economics and total recovery. Multiple effect evaporation can be modified to recover more than 50% of water therefore reducing the footprint for the evaporation ponds. Although the heat of vaporization for water is about six times greater (40.65 kJ/mol) than the heat of fusion for water (6.02 kJ/mol), the capital cost for freeze crystallization is greater, and the process is unused on an industrial scale. Reverse osmosis will purify 50% of the water with a simpler system and cheaper overall cost. All processes are being presented as viable, with preference for the reverse osmosis. A batch bench scale system was constructed to model freeze crystallization. It was designed to process one gallon of salt solution in a single vessel. The bench scale process overall recovered 72% of the water with a final salt composition that ranges from 1.44 wt.% to 5.10 wt.%. For full-scale design purposes, 2.5 wt.% recovery was assumed. Reverse osmosis further purified the melted ice to EPA standards. A thorough evaluation was conducted by generating a full-scale economic analysis for each process, taking into consideration the advantages and disadvantages of each. Important factors taken into consideration were capital and operating costs, complexity, total recovery of water, and concentration of sulfates in the water recovered. In the freeze crystallization process, impacted water is pumped through two units in a semi-batch process where ice is formed on concentric plate coils in vessels. A total of 75% water is first recovered by crystallization and then the recovered water is passed through a reverse osmosis membrane (RO) to recover 50% of the initial brine water at environmental specifications. The net present value (NPV) after 10 years of operation is (21.4million)witha50(21.4 million) with a 50% total recovery of water. The multiple effect evaporation process is a 5-stage process in which heat from steam is used to evaporate water. This process results in a recovery of 75% pure water with a net present value of (9.44 million). The reverse osmosis process will require two stages and a total of 21 elements. Reverse osmosis proved to be the most economical with an NPV of $(2.96 million) and a 50% purified water recovery compared to the other two processes

    Exploring speech in Russian fairy tales

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    Both because of their prevalence in contemporary culture and because of their ability to affect the acculturation of children, fairy tales are commonly examined from a feminist perspective. Many scholars have begun to ask if the distribution of agency in tales reflects patriarchal values, for example, are princesses nothing more than passive damsels in distress? One way to discuss these types of power relationships is to examine speech. The ability to speak can be viewed as a type of agency that shapes a character’s outcome within a narrative; it is through speech that characters bless, curse, and interact with one another. This paper seeks to explore the connections among agency, gender, moral alignment, and speech in Russian fairy tales from the Alexander Afanas′ev collection. As part of this research, the frequency of male and female vocalizations has been measured, as well as different types of silence. This research also examines the patterns of speech that appear in different tale typologies that revolve around a central female character
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