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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 668 for “"DBA"”.
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A Behavioral and Anatomical Analysis of Conditioned Taste Aversion in C57BL/6J and DBA/2J Mice
… the common strains C57BL/6J (B6) and DBA/2J (D2), allows for the investigation of phenotypic variation and specific genes underlying the various components of CTA. B6 and D2 mice have previously been characterized in terms of various ingestive behaviors, making these mice ideal for …
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Thermomechanical Reliability of Low-Temperature Sintered Attachments on Direct Bonded Aluminum (DBA) Substrate for High-Temperature Electronics Packaging
… on the reliability of direct bonded aluminum (DBA) substrate. DBA substrates with different metallization were thermally cycled between -55 oC and 250 oC. Unlike with the DBC substrate, no delamination of aluminum from the aluminum nitride ceramic base-plate was observed for the DBA substrates. …
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Noise characterization and exposure at a ski resort
… the snowmakers exceeded the OSHA 12-hour AL (82 dBA), 32% exceeded the OSHA recommended 12-hour PEL (87 dBA), 11% exceeded the OSHA PEL (90 dBA), and 63% exceeded the ACGIH® 12-hour TLV® (83 dBA). When comparing noise exposures of the day-shift snowmaker crew to the night-shift crew, results …
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Modeling Diamond-Blackfan Anemia in the Mouse: Disease Pathogenesis and Evaluation of Novel Therapies
Diamond-Blackfan anemia (DBA) is a congenital erythroid hypoplasia that presents early in infancy. The main hematopoietic symptoms include macrocytic anemia with reticulocytopenia and selective absence of erythroid precursors in a normocellular bone marrow. In addition to the hematopoietic …
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NEUROACTIVE AGENTS-MEDIATED CHANGES IN NEURONAL NETWORK ACTIVITY CONTROLS SUSCEPTIBILITY TO SUDDEN UNEXPECTED DEATH IN EPILEPSY (SUDEP)
… seizure-induced respiratory arrest (S-IRA) in DBA/1 mouse model of SUDEP, but the neuronal networks mediating S-IRA and the brain structures involved in the fluoxetine-mediated blockade of S-IRA are not known. Data from human SUDEP imaging has underlined the role of periaqueductal gray (PAG), …
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Data Envelopment Analysis in Higher Education
… the potential of Data Envelopment Analysis (DBA) within a higher education institution in relation to alternative measurement approaches.<br/><br/>The first chapter presents an introduction to the higher education context with discussion of the issues affecting performance measurement. It …
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Immunotoxicological Evaluation Of Critical Windows Of Development Following Exposure to 1,2:5,6 Dibenzanthracene in B6C3F1 Mice
… hydrocarbons such as 1,2:5,6 Dibenzanthracene (DBA). The objective of these studies was to evaluate the immunosuppressive effects of DBA on various stages of immune system development. Adult mice were administered DBA daily in corn oil at dose levels of 158, 500, 1580, and 5000 µglkg S.C. for 28 …
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The effects of hearing protection on speech discrimination in differing noise spectra
… 2). ambient noise intensity level (60, 83 dBA), 3). ambient noise spectral type (low, white approximation, high frequency), 4). speaker's voice level (63 or 65 dBA in 60 dBA noise, 82 or 88 dBA in 83 dBA noise), and 5). subject's hearing level (normal hearing, slight loss, or moderate loss) …
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How can doctorates in business administration contribute to the development of strategists?
… of the Doctorate in Business Administration (DBA) in the United Kingdom (UK) in the past twenty years has heralded a significant departure in the approach to doctoral level business research. Key to the development of the DBA is its focus on engagement with organisations. This study explores a …
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A Comparative Study of Insertion Loss of Traffic Noise Barriers in Georgia
… as noise difference in A-weighted decibels (dBA) immediately before and after the barriers. The insertion loss was then evaluated by correlating with noise barrier types and other influential variables, including the separation distance of barriers from traffic, the level of traffic, wind …
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Acoustic prediction and noise control of a refrigeration compressor
… predicted overall radiated sound power of 82.2 dBA agrees very well with the 82 dBA experimentally measured. For the noise control of the compressor, three approaches are investigated to reduce the forces transmitted to the shell and thus the radiation. (a) The spring mounts are moved to various …
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Noise Levels in a South African bank cash centre
… Measurements were conducted to determine Lex8h dBA minimum and maximum as well as the peak SPL levels expressed in dBC. These measurements enabled the researcher to compare the noise levels to current legislation regarding noise exposure within the work place. The results revealed a mean Lex,8h …
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The impact of database systems on organisations : A survey with special reference to the evolution of the database administration function
… function of data or database administration (DBA) 'usually in data processing departments. This research study is an investigation of U.K. database projects, undertaken to obtain a view of the managerial issues and organisational consequences which arise in practice. The findings are based on …
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The Detection of Warning Signals While Wearing Active Noise Reduction and Passive Hearing Protection Devices
… (pink and red) at two different noise levels (85 dBA and 100 dBA). The signal used was an industry-standard backup alarm. The experimental design was completely within-subjects. An ascending method of limits was used to obtain 15-20 correct positive responses, which were then averaged to obtain …
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The Effect of Cockpit Noise on Aircraft Pilot Psychomotor Performance
… were exposed to low intensity cockpit noise (50 dBA), eight participants were exposed to medium intensity cockpit noise (60 dBA) and eight participants were expose to high intensity cockpit noise (70 dBA). The performance of the control and experimental groups was measured in an advanced …
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Genetic Exploration of Hereditary Immune Diseases
… shown susceptibility to SAD while those with a DBA/1 background are resistant to SAD. This study was based on our data accumulated over a decade of working with this mouse model of SAD. Our hypothesis is that there are nucleotide mutations in the gene or genes that cause the differences in …
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Sheltered Workshops In Ireland : Relative Efficiency Of A Sample Of Twelve Units
… The paper explores data envelopment analysis (DBA) as a method of measuring the relative efficiency of twelve sheltered workshops. This is compared with results obtained using traditional financial management ratios. <br/><br/>Both methods suggest that a significant variation exists between the …
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Applications of reference cycle building and K-shape clustering for anomaly detection in the semiconductor manufacturing process
… the Dynamic Time Warping Barycenter Averaging (DBA), and the soft-DTW-based centroid. As a result, DBA is chosen considering its comprehensive performance of accuracy and calculation time. Optimizations on DBA is further discussed to reduce calculation time. The window constraint, as well as the …
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Age-associated alterations in the immune system of normal and autoimmune-susceptible mice
… normal young (1-2 months) and old (22-24 months) DBA/2 mice and autoimmune-susceptible young (1-2 months) and old (5-6 months) MRL-Ipr/Ipr (Ipr) mice. Autoreactive T cell clones isolated from DBA/2 mice were used to study the age-induced differential responses of syngeneic T cells and B cells. …
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Postnatal Testicular Development in 3 Inbred Strains of Mice.
… of body weight) increased for most strains. The DBA/2J strain increased by 123mg, the C57BL/6J by 84mg and the AKR/J strain by only 45mg. The C57BL/10J strain however was unique in that it showed a decrease of 235mg during this period. The absolute weight of the testes also fell with increasing …
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