888 research outputs found

    Effects of structural iron oxidation state on the hydraulic conductivity and potassium fixation of smectite clays and soils

    No full text
    Restricted to the U of I community indefinitely during batch ingest of legacy ETDsChanges in oxidation states of structural Fe in smectites altered the physicochemical properties of the minerals, which is of great importance to agriculture and environment because the permeability of soils and availability of plant nutrients depends in large degree on these properties of clays.Two smectites (SWa-1 and API 25) and the clay fraction of Batestown till with different saturating cations (Na\sp+, K\sp+, and Ca\sp{2+}) were reduced by sodium dithionite (Na\sb2S\sb2O\sb4) or sulfide (Na\sb2S), both in suspension and in situ after consolidation. The results indicated structural Fe reduction altered the hydraulic conductivity of the clays. The changes in hydraulic conductivity depended on both the oxidation state and consolidation history of the clay, and the choice of reducing agents and saturating cations.The swelling of K-saturated SWa-1 was determined and compared with the swelling of Na-smectite at various Fe oxidation states. The results indicated that the swelling of oxidized K-smectite was much less than that of oxidized Na-smectite. Structural Fe reduction decreased the swelling of Na-smectite, but increased the swelling of K-smectite. The swelling of reduced K- and Na-smectite was similar.The two smectites, one illite (Fithian), and the clay fractions from the A horizon of three Illinois soils were studied by different methods and techniques. The results indicated that the structural Fe reduction altered the distribution of K between exchangeable and fixed states. In smectites, Fe reduction increased K fixation without changing the amount of exchangeable K. In Illite, the reduction treatment released K to the surrounding solution. The behavior of soil clays is thus largely dependent on the type of clay minerals and the original fixed K content. Redox cycling increased the amount of residual Fe(II), and also altered the fixed K in the clays.Made available in DSpace on 2011-05-07T14:15:58Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9512547.pdf: 5772806 bytes, checksum: ed5d516d5c6e190db79fbff3d7550f1d (MD5) Previous issue date: 1994Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding ([email protected]) on 2011-05-07T15:04:48Z Item is restricted indefinitely.Restriction data tranferred 2014-07-01T11:30:59-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permissionU of I Onl

    Peranan dan Tugas Account Executive di Perusahaan Event Organizer PT.Becom

    No full text
    ABSTRACT Marlene Boast D1311090. Advertising. Department of Social and Political Sciences Faculty. Final Project Entitled: THE ROLE AND DUTY OF ACCOUNT EXECUTIVE IN PT. BECOM EVENT ORGANIZER COMPANY. This Media on-the-job-training aimed to give the writer the perspective on actual condition of job real, so that she is expected to apply the knowledge she has learn. The author followed the Media On-The-Job-Training in PT. BECOM Event Organizer Company as Account Executive. The objectives of writer attending the Media On-The-Job-Training in PT. BECOM were to increase her insight into working process of Account Executive in PT. Becom Event Organizer Company, to improve and to determine the skill creating the ability to enter into job realm. In advertisement and event organizer companies, an account executive serves to describe the product or event to be informed to client and other sources. In undertaking its duty and function as account executive and in maintaining the relationship with client, the writer also supervise and coordinate the work the company did related to the development of company corresponding to the plan, time interval and budget. Account Executive needed strategy regulation not only in obtaining client but also in maintaining the client in enjoying the company’s service, so that a variety of ways was needed to make the client satisfied. The writer could understand the importance of an Account Executive’s duty in an Event Organizer. Therefore, during Media On-The-Job-Training, the writer got many insights into advertisement world with any of its details, particularly in the term of promotion media. Keywords: Account Executive, Event Organizer, client

    Influenza : a scientometric and density-equalizing analysis

    No full text
    Background: Novel influenza in 2009 caused by H1N1, as well as the seasonal influenza, still are a challenge for the public health sectors worldwide. An increasing number of publications referring to this infectious disease make it difficult to distinguish relevant research output. The current study used scientometric indices for a detailed investigation on influenza related research activity and the method of density equalizing mapping to make the differences of the overall research worldwide obvious. The aim of the study was to compare scientific effort over the time as well as geographical distribution including the cooperation on national and international level. Methods: Therefore, publication data was retrieved from Web of Science (WoS) of Thomson Scientific. Subsequently the data was analysed in order to show geographical distributions and the development of the research output over the time. The query retrieved 51,418 publications that are listed in WoS for the time interval from 1900 to 2009. There is a continuous increase in research output and general citation activity especially since 1990. Results: The identified all in all 51,418 publications were published by researchers from 151 different countries. Scientists from the USA participate in more than 37 percent of all publications, followed by researchers from the UK and Germany with more than five percent. In addition, the USA is in the focus of international cooperation. In terms of number of publications on influenza, the Journal of Virology ranks first, followed by Vaccine and Virology. The highest impact factor (IF 2009) in this selection can be established for The Lancet (30.75). Robert Webster seems to be the most prolific author contributing the most publications in the field of influenza. Conclusions: This study reveals an increasing and wide research interest in influenza. Nevertheless, citation based-declaration of scientific quality should be considered critically due to distortion by self-citation and co-authorship

    Ecology of Free-Ranging Cheetahs

    No full text
    Considerable research has been conducted on cheetah ecology. Cheetahs can exist in a wide variety of habitats from thick scrub to open grassland, and habitat selection is based on a variety of factors, including visibility, prey density, and avoidance of competitively superior predators. Cheetahs naturally occur at low densities and require a prey base of small to medium-sized ungulates that can be consumed rapidly, minimizing the risks for cheetahs of being detected by larger carnivores that can usurp their kills. Cheetahs exhibit wide ranging movements and large home ranges—over 2000 km2 in some areas. Reported densities generally range from 0.3 to 3.0 adult cheetahs per 100 km2. The species distribution, density, and activity patterns are impacted by human activities and the presence of larger carnivores. Understanding cheetah habitat requirements and movement ecology, especially pertaining to long-distance movements, will become progressively more important as the cheetah’s range becomes increasingly fragmented

    Barnett Cites High Revenue

    No full text
    Article about Governor Ross Barnett\u27s boast that his administration accumulated the highest-ever total of tax revenue of any Mississippi governor\u27s administration; Source: Clarion-Ledger (Jackson, Miss.)https://egrove.olemiss.edu/jws_clip/1340/thumbnail.jp

    The Tortoise and the Hare (Storytoon)

    No full text
    Harmless, simple cartoons. The boasting hare waited in order to make the finish exciting, and the wait led to a two-minute nap that stretched on and on. The hare could never boast again.This is a hardbound book (hard cover

    Recognising Multi-textualism: Rethinking New Zealand's Legal History

    No full text
    In this article the author discusses various written agreements that the New Zealand government has entered into with Māori since the signing of the Treaty of Waitangi in 1840. It is argued that the legal history of New Zealand is more "multi-textual", and more like Canada, the United States, and Argentina than is often thought. It is argued also that the process of agreement-making has been a continuously evolving one and at the present day is more important than ever. The article distinguishes between various types of Crown-Māori agreements and explores which of them are more Treaty-like than others
    corecore