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Revised; Originally Published: 2004 / 3 pp. / Wheat and barley are the two major small grain crops in Arizona. These crops can produce yields near maximum at a wide range of seeding rates due to yield component compensation. Grain yield is determined by plants per unit area, tillers per plant, kernels per head, and kernel weight. At a low seeding rate, the plant will compensate for fewer plants per unit area by producing more tillers per plant and larger heads. At a high seeding rate, fewer tillers are produced compared to a low seeding rate, and the heads are smaller. Therefore, grain yields near maximum can be produced at a wide range of seeding rates if conditions are favorable (see Fig. 1). Weed control can be a problem at low seeding rates and lodging may be a problem at high seeding rates. The optimum seeding rate for small grains depends on a variety of factors which will be discussed

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Thesis (M.S.)--Bowling Green State University, 2008. / Document formatted into pages; contains x, 78 p. Includes bibliographical references.

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The decisions behind choosing teammates for an interdisciplinary team are significant. Team assembly – the reasons behind individuals’ decisions about whom to work with in teams – likely play a key role in shaping crucial team processes, such as conflict and viability. This thesis advances a two dimensional taxonomy of team assembly where member decisions of who to team up with can be: (1) driven by team maintenance or task performance concerns (i.e., team versus task), and (2) based on individual characteristics or dyadic relationships (i.e., compositional versus relational). The effect of these four assembly mechanisms on resulting conflict and viability perceptions were tested in a sample of thirty-nine design teams enrolled in a master’s level human-computer interaction course (over three years). Within each of three cohorts, individuals self-assembled into project teams to develop a product that would better lives in some way. Relational team assembly was measured at week 1, compositional team assembly was measured at week 2, team conflict at week 5, 10 & 14, and team viability at week 14 using surveys. Hypotheses were tested using exponential random graph models to predict conflict tie formation based on dyadic assembly rules, and regression to test if relational team assembly mechanisms predict team viability. Results indicate that taskwork assembly mechanisms predict team conflict, but teamwork assembly mechanisms do not. Relational teamwork and taskwork assembly mechanisms do not predict team viability. Future directions of research in team conflict, team assembly, and team networks are discussed based on the current findings. This thesis contributes to science by providing an interdisciplinary model of team assembly mechanisms, and evaluates the model in explaining team conflict and viability.

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>Magister Scientiae - MSc / Introduction: Nanoparticles (NPs) are gaining increased popularity for cancer treatment, especially the multifunctional nanoparticles like Quantum dots (QDs) which have a wide range of applications in nanotheranostics, cell imaging and targeted drug delivery to cancerous tissue. QDs comprise of very tiny crystals of a semiconductor material (diameter: 2-10 nm) capable of producing bright, intensive and size-tuneable near-infrared fluorescence emissions. In particular, 3-mercaptopropionic acid -capped Cadmium Telluride Quantum Dots with a zinc sulphide shell (MPA-capped CdTe/ZnS QDs), are known to be very stable, highly photoluminescent, less toxic with long-lasting “fluorophore” effects, thus making them the preferred QDs for this study. Aims: To synthesize and characterize biocompatible MPA-capped CdTe/ZnS QDs to determine size range, polydispersity index (PdI), zeta (ζ) potential, photoluminescence (PL) spectra, stability in various milieus as well as to evaluate the effects of the synthesized QDs on the viability and morphology of neuroblastoma (NB) and glioblastoma (GB) cell lines using the WST-1 cell viability assay, imaging and cell cycle analysis. Materials and methods: MPA-capped CdTe/ZnS QDs were synthesized and analysed with the Zetasizer to determine ζ-potential, hydrodynamic (hd) size and PdI, while high resolutiontransmission electron microscopy (HR-TEM) was used to validate the hd size and elemental composition using energy dispersive X-ray (EDX) spectra. Pl absorption and emission spectra were obtained with a fluorometer and stability studies were done using UV-Vis spectroscopy, permitting further biological evaluation. A concentration range of 5-20μg/ml QDs was exposed to U87 and SH-SY5Y cancer cell lines to determine biological effects at different time points, using the WST-1 assay. Confocal fluorescence microscopy was used to establish uptake and cellular localization of the QDs, cell morphology was visualized with an inverted microscope while cell cycle distribution analysis was done using the C6 flow cytometer.