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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
111

Effects of yeast, essential oils, increased zinc oxide and copper sulfate, or their combination in nursery diets on pig performance

Langemeier, Austin James January 1900 (has links)
Master of Science / Department of Animal Sciences and Industry / Jim L. Nelssen / Two experiments evaluated the effects of feeding growth promoting alternatives, alone or in combination, on nursery pig performance in comparison to a common feed additive, carbadox. In Exp.1, 288 weaned pigs (Line 600 × 241; DNA, 5.36 kg) were used in a 42-d study. Pigs were allotted to 1 of 9 dietary treatments in pens of 4 at weaning in a randomized complete block design with 8 replications per treatment. Dietary treatments were arranged with a negative control diet with no dietary feed additive, a positive control with added carbadox or 7 treatments including added copper sulfate (CuSO₄; 0 vs. 125 ppm Cu) and added zinc oxide (ZnO; 0 vs. 3,000 ppm Zn from d 0 to 7 and 2,000 ppm Zn from d 7 to 28), essential oils from XTRACT 6930 at 0.91 kg/ton, Safman (yeast cell walls) at 0.23 kg/ton , Biosaf HR (yeast cells) at 0.68 kg/ton. These supplements were fed alone or in combination. From d 0 to 7 experimental diets were a pelleted diet and fed in a meal form from d 7 to 28, followed by a common corn-soybean meal-based diet from d 28 to 42. Essential oil blend (cinnamaldehyde) and yeast had no (P > 0.05) effect on ADG. Feeding carbadox or added trace minerals (Cu and Zn) improved ADG (P < 0.05) of nursery pigs compared to the control. Carryover effects from any of these dietary treatments on subsequent growth performance were not (P > 0.05) different. The use of added trace minerals Cu and Zn alone or in conjunction with either yeast or essential oil blend (cinnamaldehyde) results in ADG and G/F comparable to carbadox. In Exp. 2, 280 weaned pigs (Line 600 × 241; DNA, 5.18 kg) were used in a 35-d study. Pigs were allotted to 1 of 7 dietary treatments in pens of 5 at weaning in a randomized complete block design with 8 replications per treatment. Dietary treatments were arranged with a negative control diet with no dietary feed additive, a positive control with added carbadox or 5 treatments including added copper sulfate (CuSO₄; 0 vs. 125 ppm Cu) and added zinc oxide (ZnO; 0 vs. 3,000 ppm Zn from d 0 to 7 and 2,000 ppm Zn from d 7 to 35), and Victus® LIV (145 or 435 ppm). These supplements were fed alone or in combination (Cu/Zn and 145 ppm Victus® LIV or Cu/Zn and 435 ppm Victus® LIV. Diets were fed in meal form. Feeding carbadox, 145 ppm Victus® LIV or added trace minerals (Cu and Zn) improved ADG (P < 0.05) of nursery pigs compared to the control. In summary, under the conditions of these experiments, pigs fed zinc/copper, 145 ppm Victus® LIV or a combination of these had similar (P > 0.05) growth performance to pigs fed carbadox.
112

Questions to ask when planning to start a wholesale plant nursery

Schuch, Ursula K. 07 1900 (has links)
6 pp. / The plant nursery business is complex and requires knowledge about the technical aspects of growing plants and managing a business. This publication is an introduction for those interested in starting their own wholesale nursery business. Different types of production systems - container and field production- are discussed as well as the types of plants typically grown in Southwest nurseries. Starting a business involves many decisions that will culminate in the development of a business plan. Resources for new producers include national, regional, and local trade organizations. A worksheet with questions is included to help future operators consider whether they want to start a new wholesale production nursery. Publication AZ1393 Revised 07/2017. Originally published 2006
113

Differential Responses of Student Teachers to Children in Nursery School

Lambert, Carroll Carman 01 May 1961 (has links)
For some time the writer has observed the keen, creative sensitivity with which children respond to their world . She has also observed , however, that many teachers and parents seem to be quite unaware of this sensitivity. An illustration of this lack of awareness is the following experience : One day a nursery school teacher had a painful headache; in fact, it was suggested that she go home for the remainder of the day . Instead of going home , however , she decided to stay , thinking that her headache would soon abate. The teacher was sitting on a chair observing the children, unaware that one child seemed also to be closely observing her . At the conclusion of a ten or fifteen minute period of this mutual observation , the little boy approached the teacher and said , "You don ' t feel well , do you?" The teacher looked astonished but replied ; "Oh yes , I feel all right."
114

An Analysis of the Differential Responses of a Group of Nursery School Children to a Variety of Musical Presentations

Godfrey, Eva Louise 01 May 1961 (has links)
The problem of what kinds of music provide the most meaning for the young child has long been a concern of the author. It arises not only out of close experience with young children, but also out of a concern for the responsibility of providing them with meaningful aesthetic experiences. From this background of experience the problem is not purely an academic one. Its first and ultimate concern is an experiential one. Because it arises out of this particular background, the analysis of the problem and its study is less concerned with academic and scientific validity than might otherwise have been the case.
115

Importance of estuaries and rivers for the coastal fish, temperate seabass Lateolabrax japonicus / 沿岸性魚類スズキにおける河川・河口域の重要性

Fuji, Taiki 24 March 2014 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(農学) / 甲第18337号 / 農博第2062号 / 新制||農||1023(附属図書館) / 学位論文||H26||N4844(農学部図書室) / 31195 / 京都大学大学院農学研究科応用生物科学専攻 / (主査)教授 荒井 修亮, 教授 山下 洋, 准教授 田川 正朋 / 学位規則第4条第1項該当 / Doctor of Agricultural Science / Kyoto University / DFAM
116

Škola, základ života - Soubor školských staveb v Ostravě na Černé louce / School, the Foundation of Life – a Complex of Educational Buildings in Ostrava, Cerna louka

Véghová, Renáta January 2014 (has links)
The main goal of my thesis was to design school buildings corresponding to the current trends and and also to connect and further develop the concept of urban development of Cerna Louka.
117

Economic Analysis of Recapturing and Recycling Irrigation Techniques on Horticulture Nurseries

Ferraro, Nathaniel Klug 22 September 2015 (has links)
The horticulture industry is facing limited water resources and public pressure to reduce non-point source pollution. In some circumstances, recapturing and recycling of irrigation water in horticultural nurseries can generate significant savings relative to the costs of alternative water sources and potentially reduce non-point source pollution. However, obtaining these savings may also incur substantial risk and capital cost outlays. Disease risk may increase in nurseries that implement recapturing and recycling if recycled water is not properly treated. These added costs must be compared with costs of alternative sources of water, such as municipal or well water. This study employed partial budgeting to compare irrigation water being extended or supplemented through recapturing and recycling against the most feasible alternative. On-site visits were conducted to obtain information for partial budgets and to clarify the reasoning of nurseries choosing to recycle irrigation water. The partial budgets were supplemented with sensitivity analysis with regard to the extraction cost of water and opportunity cost of land used for recapture of water. Six of eight nurseries obtained water from recapturing and recycling at a lower cost compared to a feasible alternative source. The regrading of land for maximum recapture, opportunity cost of land dedicated to a recapture pond, and the cost of municipal water were parameters that were critical to the irrigation choice. Sensitivity analysis indicated that water price and land cost had little effect on the least cost option. Irrigation recycling could be incentivized to motivate further water conservation within the horticulture industry. / Master of Science
118

Stock plant nutrition and stem cutting water relations during propagation of four woody nursery crops

Rein, William Henry 14 March 2009 (has links)
To evaluate the effects of stock plant nutrition and propagation medium moisture content on stem cutting propagation, two separate studies were conducted. In one study, stem cuttings of Juniperus horizontalis Moench ‘Wiltonii’, Rhododendron (Lindl.) Planch ‘Hino-Crimson’, and Ilex crenata ‘Helleri’, were propagated in 1 peat : 1 perlite (v/v) at 125 %, 250 %, 375 %, 500 %, and 625 % moisture. Stem cutting survival and rooting, midday xylem water potential, and basal water uptake all generally increased with increasing medium moisture level. Incidence of cutting basal rot was not directly related to medium moisture level, but was related to species and growth stage of the stock plant. Basal water uptake by cuttings was highest during the first few days after insertion and thereafter decreased until root emergence. Propagation was most successful in the wettest medium (625 %). In a second study, containerized stock plants of Ilex crenata Thunb. ‘Rotundifolia’ were liquid-fertilized with 25, 50, 100, 200, and 300 mg N · liter⁻¹ in two forms (100 % NH₄NO₃ or 50 % Urea + 50 % NH₄NO₃) in a factorial treatment design. Percent rooting of stem cuttings decreased linearly with fertilizer rate. Leaf and stem percent N increased from suboptimal to excessive levels with fertilizer rate. Total nonstructural carbohydrates (TNC) levels increased in leaves and remained constant in stems with increasing fertilizer rate. Stem cutting percent moisture was highly correlated with fertilizer rate. The form of N applied made no statistical difference in these trends. The decrease in percent rooting with increasing fertilizer rate was attributed to increases in shoot growth activity. / Master of Science
119

Influence of Lime and Micronutrient Amendments on Growth of Containerized Landscape Trees Grown in Pine Bark

Wright, Amy Noelle 10 August 1998 (has links)
Growing landscape trees in containers is a common practice in the nursery industry. In the southeastern United States, pine bark is often used as a container substrate, and two common amendments to pine bark are lime and micronutrients. In this study, three experiments were conducted to determine the effect of these amendments on the growth of a wide range of landscape tree species grown in pine bark. In the first experiment, nine species of landscape trees [Acer palmatum (Japanese maple), Acer saccharum (sugar maple), Cercis canadensis (redbud), Cornus florida (flowering dogwood), Cornus kousa (kousa dogwood), Koelreuteria paniculata (golden-rain tree), Magnolia x soulangiana (magnolia), Nyssa sylvatica (blackgum), and Quercus palustris (pin oak)] were grown from seed in two pine barks: pH 4.7 (low) and 5.1 (high). Preplant amendment treatments to each pine bark (Pinus taeda) were: with or without dolomitic limestone (3.57 kg.m-3) and with or without micronutrients (0.9 kg.m-3, Micromax™). The same experiment was repeated using Koelreuteria paniculata and Quercus palustris, the same lime and micronutrient treatments, and two pine barks: pH 5.1 (low) and 5.8 (high). In both experiments, micronutrients increased shoot dry mass and height for all species, while lime decreased shoot dry mass and height for all species. Effect of bark type in the first experiment was variable, while shoot dry mass and height were highest in the low pH bark when the experiment was repeated. Substrate solution element concentrations increased when micronutrients were added, decreased when lime was added, and in general, concentrations were higher in low pH bark than in high pH bark. In the third experiment, Koelreuteria paniculata was grown from seed in pine bark amended with 0, 1.2, 2.4, or 3.6 kg.m-3 dolomitic limestone and 0 or 0.9 kg.m-3 micronutrients (Micromax™). Initial pH for each lime rate was 4.0, 4.5, 5.0, and 5.5, respectively. Adding micronutrients increased shoot dry mass and height. Lime increased growth only at the 1.2 kg.m-3 rate. In general, substrate solution element concentrations increased when micronutrients were added and decreased when lime was added. In all three experiments, adding micronutrients was necessary regardless of pine bark pH, while adding lime was not necessary. / Master of Science
120

THE INVESTIGATION OF FOREIGN WORD MEMORY USING NURSERY RHYMES

Ahmad, Fiza 11 1900 (has links)
In linguistics, prosody encompasses the rhythm, stress, and intonation of speech, and this plays an important role in the language-learning process. This study seeks to understand this phenomenon further, providing novel language learning data with nursery rhymes as a vehicle to teach adults foreign words. Building on models of Dynamic Attending Theory and Phonological Short-Term Memory, it was theorized that the accuracy of foreign word learning is predicted by the prosodic cues present in the word’s learning context. This experiment included 3 tasks to explore this theory. Task 1 tested how accurately the participant processed the beat of a musical sequence. In Task 2, participants learned foreign words in a nursery rhyme context. Finally, in Task 3, participants were asked to identify which words they recognized from a large list of foreign words. Results showed a significant effect for prosodic cues’ influence on word memory. Specifically, temporal and rhythmic cues hierarchically facilitate phonological short-term memory, as represented in this paper’s proposed theoretical model. A potential link was also found between individual rhythmic ability and memory of foreign words. Overall, the present thesis offers a theoretical understanding of the use of nursery rhymes during adult foreign language learning / Thesis / Master of Science (MSc) / In linguistics, prosody encompasses the rhythm, stress, and intonation of speech, which plays an important role in the language-learning process. When adults don't have the meaning of words to rely on, they often use these rhythmic cues to remember them better. This research involved three tasks: processing the beat of music, learning foreign words through nursery rhymes, and then recognizing those words from a list. The results showed that rhythmic and timing cues are helpful for remembering words. Also, individuals with better rhythmic skills may demonstrate better word memory. This study suggests that using nursery rhymes could be an effective tool for teaching adults new languages.

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