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Dissertations / Theses on the topic 'Effet inoculum'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Vitale, Laurent. "Etude comparative de l'activité antibactérienne in vitro de huit bêta-lactamines sur les trois espèces d'entérobactéries du groupe 3 les plus fréquemment isolées en clinique." Paris 5, 1997. http://www.theses.fr/1997PA05P185.

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2

Pichereau, Solen. "Etude de l'activité des antibiotiques utilisés en clinique dans les infections communautaires à staphylococcus aureus sur la décroissance bactérienne, la production de toxines et le relargage de cytokines par les cellules mononuclées." Poitiers, 2011. http://www.theses.fr/2011POIT1802.

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Les infections communautaires à CA-MRSA sont un problème de santé publique majeur aux Etats-Unis et l'épidémie pourrait s'étendre en Europe si ce pathogène n'est pas mieux maîtrisé par les traitements antibiotiques disponibles sur le marché. L'objectif de ce travail a été d'utiliser des modèles d'infections PK/PD pour étudier l'activité des antibiotiques utilisés en clinique vis-à-vis des souches CA-MRSA. Les doses optimales d'antibiotiques efficaces vis-à-vis de CA-MRSA ont été déterminées à l'aide d'un modèle PK/PD d'infection musculaire chez la souris immunodéprimée. La sensibilité des anti

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3

Baijnath, Sharika. "Effect of inoculum source, inoculum pressure and cultivar on development of black scurf on potatoes in South Africa." Diss., University of Pretoria, 2012. http://hdl.handle.net/2263/24650.

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Rhizoctonia solani inoculum can be present either as soil- or tuber-borne sclerotia or hyphae. Although both inoculum sources play a role in disease development, it is not clear which of the two is more important. Successive cultivation of potato crops increases R. solani soil inoculum load resulting in an escalation in disease incidence and severity. The use of tolerant cultivars, however, can effectively reduce inoculum levels thereby decreasing disease intensity. Four pot trials were conducted; the objective of the first two pot trials was to determine the effect of tuber and soil-borne ino

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4

Balko, Tamara. "Characterization of the inoculum effect with Haemophilus influenzae and ß-lactams." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq23211.pdf.

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5

Barrett, E., and Phillip R. Scheuerman. "The Effect of Cell Inoculum Level and Substrate Concentration on p- cresol Degradation." Digital Commons @ East Tennessee State University, 1998. https://dc.etsu.edu/etsu-works/2914.

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6

Barrett, E., and Phillip R. Scheuerman. "Effect of Inoculum level of a Freeze-Dried Consortium and Substrate Concentration on p-cresol Degradation." Digital Commons @ East Tennessee State University, 1998. https://dc.etsu.edu/etsu-works/2915.

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7

Hine, R. B., P. A. Mauk, and Tesfaye Tedla. "The Effect of Soil Temperature and Inoculum Levels of Thielaviopsis basicola on Black Root Rot of Cotton." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/204546.

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Two planting dates, March 28, and April 28 were used to study the effect of soil temperature during planting on black root rot of cotton. Also, several cotton varieties were evaluated for response to the disease under varying soil temperatures and inoculum levels.

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8

Hinks, Jamie. "Effect of inoculum on bioelectricity yield and the use of factorial experiments for assessing microbial fuel cells." Thesis, University of Newcastle Upon Tyne, 2012. http://hdl.handle.net/10443/1449.

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The study aim was to understand the effect of inoculum on bioelectricity production and the interactions that occur between organic load, external resistance and fuel type during the operation of a Microbial Fuel Cell (MFC). The first experiment explored the effect of four different environmental inocula (freshwater sediment, two types of return activated sludge (RAS) and anaerobic sludge) on microbial fuel cell performance. The number of bacteria in each of the inocula were standardised prior to experiments to achieve an inoculum density of 1.29 x 107cells ml-1 so that the comparison between

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9

Ballinas, Archundia Susana. "Effect of Saccharomyces cerevisiae on In Vitro Fecal Digestion of Four Feed Ingredients Commonly Used to Feed Horses in Mexico." Tesis de Licenciatura, Universidad Autónoma del Estado de México, 2016. http://hdl.handle.net/20.500.11799/65150.

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ABSTRACT: The study aimed to assess the nutritive value in vitro of 4 feeds (grains and forages) commonly used in horses nutrition in Mexico, in the absence or presence of Saccharomyces cerevisiae at 4 mg/g DM. Fecal inoculum was obtained from 4 adult English Thoroughbred horses fed on restricted amount of concentrate and oat hay ad libitum. The incubated substrates included were corn gluten meal, soybean meal, oat grain and alfalfa hay. Gas production was recorded at 2, 4, 6, 8, 10, 12, 14, 24, 48 and 70 h using the Pressure Transducer Technique. Some ingredient × yeast interactions were

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10

Larson, William Kalvin. "The Effect of Variable Seed-Borne Inoculum Load of Dickeya dianthicola on Performance and Infection of Field Grown Potatoes." Thesis, North Dakota State University, 2020. https://hdl.handle.net/10365/32039.

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Field experiments were conducted at Live Oak, Florida, and Rhodesdale, Maryland, to evaluate the effect of variable seed-borne inoculum load of Dickeya dianthicola on potato plant emergence, plant growth throughout the growing season, disease prevalence in the field throughout the growing season, yield and grade, and transmission of D. dianthicola to progeny tubers. No statistically significant differences in emergence, plant height, or disease incidence were observed at either location. Statistically significant differences were observed in yield at the Florida location; all inoculated treatm

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11

Fisher, Brett Joseph. "The effect of mycorrhizal inoculation prior to transplantation on wetland restoration success in sites of different land use histories." Wright State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=wright1324571000.

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12

Sartini. "The effect of inoculum density, virulency, and carrier systems of phoma sp. on biological control of giant foxtail (setaria faberi hermm.)." Virtual Press, 1995. http://liblink.bsu.edu/uhtbin/catkey/955092.

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The effect of spore titer, virulency, and carrier systems on biological control of giant foxtail (Setaria faberi hermm.) with a species of Phoma isolated from this weed wereinvestigated. The lowest concentration of Phoma conidia which significantly affected (lowered) growth of giant foxtail was 1x106 conidia/ml. In conducting Koch's postulates, all but one (FF2) of the Phoma, isolates tested infected giant foxtail. Isolates FF1 and FF9 were the most virulent against giant foxtail. No correlation was apparent between virulency and fungus germination rate. No visible difference occurred with in

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13

Marais, Carla. "Effect of inoculum source, alternative host and cultivar on development of brown spot and black pit of potatoes in South Africa." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/40339.

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In recent years two new diseases, brown spot and black pit, have been observed on potatoes in South Africa. Brown spot symptoms appear on the foliage as small brown lesions, whereas black pit symptoms appear on the tubers as small dark sunken lesions. In this study the causal organism of brown spot and black pit of potatoes in South Africa was determined. During initial isolation, one fungus and two bacteria were isolated, which were included in the trial. Only the treatments where the fungal isolate was used in inoculation resulted in the development of brown spot lesions. The causal organis

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14

Schneider, Olivier. "Analyse des effets du mode de gestion des résidus de colza sur l'initiation du cycle de Leptosphaeria maculans." Paris, Institut national d'agronomie de Paris Grignon, 2005. http://www.theses.fr/2005INAP0007.

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15

Jean-Paul, Carline. "Effet de l'enrichissement en oxygène de la solution nutritive chez une culture de tomate biologique inoculée ou non avec des agents." Master's thesis, Université Laval, 2009. http://hdl.handle.net/20.500.11794/21837.

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Pour une culture biologique de tomate de serre, l'enrichissement en oxygène de la solution nutritive, associé à l'utilisation d'agents bénéfiques a eu un effet positif sur le rendement en fruits de classe 1 de la tomate. Les rendements en fruits totaux et vendables les plus importants ont été obtenus chez les plantes inoculées avec Trichoderma harzianum (Rootshield®) et recevant une solution nutritive enrichie en oxygène. Les fruits de ces plantes présentaient également moins de désordres physiologiques en termes de microfendillement et de pourriture apicale. Cependant, la combinaison de l'enr

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16

Abro, Manzoor Ali. "Nitrogen fertilization of the host plant influences susceptibility, production and aggressiveness of Botrytis cinerea secondary inoculum and on the efficacy of biological control." Phd thesis, Université d'Avignon, 2013. http://tel.archives-ouvertes.fr/tel-00985012.

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Nitrogen (N) fertilization is known to influence the susceptibility of many plants to a variety of diseases. In the case of diseases caused by Botrytis cinerea, the role of N fertilization appears to be variable, with high levels either fostering or reducing severity depending on the studies. To test whether this variability could be due to possible differences in the host plants, inoculum pressure or in the behavior of different strains of the pathogen, studies were carried out to investigate the effect of different N fertilization regimes on the susceptibility of tomato and lettuce to six is

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17

Gouzou, Laurent. "Devenir d'une population bactérienne inoculée dans la rhizosphère du blé et ses effets sur la plante : Cas de Bacillus Polymyxa." Nancy 1, 1992. http://docnum.univ-lorraine.fr/public/SCD_T_1992_0197_GOUZOU.pdf.

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L'inoculation du blé avec une souche bactérienne fixatrice d'azote (bacillus polymyxa cf 43) isolée de sa rhizosphère, a été étudiée. La mise au point de méthodes immuno-enzymatiques (acp elisa et ab elisa) a permis de suivre la colonisation du système racinaire par bacillus polymyxa, en microcosmes au laboratoire et au champ. L'inoculation de la souche cf43 par enrobage des semences de blé conduit à une augmentation significative de la taille de la population de b. Polymyxa sur le système racinaire séminal de la plante. Pour différents types de sols testes, la survie de la bactérie parait aus

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18

Jean-Paul, Carline. "Effets de l'enrichissement en oxygène de la solution nutritive chez une culture de tomate biologique inoculée ou non avec des agents." Thesis, Université Laval, 2009. http://www.theses.ulaval.ca/2009/26887/26887.pdf.

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19

Balko, Tamara. "Characterization of the inoculum effect with Haemophilus influenzae and B-lactams." 1997. http://hdl.handle.net/1993/802.

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An inoculum effect is defined as a four-fold or greater increase in minimum inhibitory concentration (MIC) with an increase in bacterial inocula. Using the National Committee for Clinical Laboratory Standards (NCCLS) MIC determination protocol (a turbidimetric method) Haemophilus influenzae demonstrated an inoculum effect with ampicillin, cefaclor, loracarbef, cefuroxime, and amoxicillin/clavulanate when initial inocula were increased from $5\times 10\sp5$ CFU/ml (low inocula) to $1 \times 10\sp7$ CFU/ml (high inocula). Using this method an inoculum effect was observed with both $\beta$-lactam

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20

Ho, Ching-Jou, and 何青洲. "The effect of Waste Activated Sludge (WAS) as inoculum in Windrow Composting." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/p8b56m.

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碩士<br>國立交通大學<br>環境工程系所<br>97<br>Food waste and green waste are the most organic sources in municipal solid wastes, which can be reused as soil amendments or fertilizer for land application. However, incinerating food waste is problematic due to its high moisture and salt contents; if treated by landfilling, the unpleasant odors and copious leachate generated by kitchen waste is another area of concern. Therefore, composting is often presented as a low-technology and low-investment process to convert organic solid wastes to a soil amendment known as compost. In this study the effect of co-compo

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21

Tan, Cheemeng. "Bistability, Synthetic Biology, and Antibiotic Treatment." Diss., 2010. http://hdl.handle.net/10161/3108.

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<p>Bistable switches are commonly observed in the regulation of critical processes such as cell cycles and differentiation. The switches possess two fundamental properties: memory and bimodality. Once switched ON, the switches can remember their ON state despite a drastic drop in stimulus levels. Furthermore, at intermediate stimulus levels with cellular noise, the switches can cause a population to exhibit bimodal distribution of cell states. Till date, experimental studies have focused primarily on cellular mechanisms that generate bistable switches and their impact on cellular dynamics. </p

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22

Zinnen, Thomas Matthew. "The effect of TMV coat protein on the specificity of cross protection and of inoculum interference." 1985. http://catalog.hathitrust.org/api/volumes/oclc/12352705.html.

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23

Yang, Yong-siang, and 楊詠翔. "Effect of temperature and inoculum on methane production in anaerobic co-digestion of swine manure and rice straw." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/46481489937437898194.

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碩士<br>國立中央大學<br>化學工程與材料工程研究所<br>99<br>Because the sharp rise in oil prices in recent years, and let the biomass energy has been re-valued(biomethane、biohydrogen、bioethanol、biodiesel), and rising environmental awareness of agricultural waste recycling is also increasing emphasis. Therefore, it is a very worthy subject of study. In this study investigated the methane production by anaerobic co-digestion swine manure with rice straw. Mainly the parameter are temperature(40 ℃、55℃) and inoculum(improved number 1、improved number 2、improved number 3) to investigated the effect of methane production,

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24

Hepnar, David. "Genová exprese porinů a beta-laktamáz během účinku beta-laktamových antibiotik v závislosti na velikosti inokula u klinických izolátů Klebsiella pneumoniae." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-312464.

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Gene expression of porin and beta-lactamases genes during the beta-lactam antibiotic treatment and effect of inoculum size on Klebsiella pneumoniae clinical isolates ABSTRACT In recent years, Klebsiella pneumoniae has been increasingly reported to be one of the most important nosocomial pathogens, and it is usually resistant to many antibiotics. In this work, we focused on the expression of the AmpC group β- lactamase DHA-1 and its negative regulator AmpR, as well as the porins OmpK35 and OmpK36 and on effect of inoculum. We used well-characterized Klebsiella pneumoniae strains in this study.

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25

Hernandez, Susana. "The Effect of Initial Inoculum Source on the Microbial Community Structure and Dynamics in Laboratory-Scale Sequencing Batch Reactors." Thesis, 2011. http://hdl.handle.net/10754/209382.

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Understanding the factors that shapes the microbial community assembly in activated sludge wastewater treatment processes provide a conceptual foundation for improving process performance. The aim of this study was to compare two major theories (deterministic theory and neutral theory) regarding the assembly of microorganisms in activated sludge: Six lab-scale activated sludge sequencing batch reactors were inoculated with activated sludge collected from three different sources (domestic, industrial, and sugar industry WWTP). Additionally, two reactors were seeded with equal proportion of slud

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26

Adee, Eric Allen. "Primary inoculum of Pyrenophora tritici-repentis on wheat as affected by cultural controls in reduced tillage, and its effect on epidemic development." 1988. http://hdl.handle.net/2097/22689.

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27

Yang, Shu-Er, and 楊淑娥. "Effect of temperature and inoculum size on the growth of Salmonella spp., Staphylococcus aureus, Escherichia coli O157:H7 and Listeria monocytogenes in egg products." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/01472064568707275562.

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碩士<br>國立臺灣大學<br>食品科技研究所<br>86<br>Egg products such as steamed egg was one of the main vehicles of food-borne pathogens Salmonella spp., S. aureus, E. coli O157:H7 and Listeria monocytogenes can grow in the egg products. These pathogens are frequently reported to causes food-borne out breaks in many countries. Growth behavior of these food-borne pathogens in egg products stored at different temperatures were investigated in this study. Data obtained will provide valuable information to devel

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