Oklahoma State University–Stillwater

About: Oklahoma State University–Stillwater is a education organization based out in Stillwater, Oklahoma, United States. It is known for research contribution in the topics: Population & Large Hadron Collider. The organization has 18267 authors who have published 36743 publications receiving 1107500 citations. The organization is also known as: Oklahoma State University & OKState.

A typology of Korean discount shoppers: shopping motives, store attributes, and outcomes

Abstract: The internationalization of retailing is increasing throughout the global service markets Among many retail formats, the discount store is one of the fastest growing formats actively engaging internationalization In managing retail firms in other cultures, understanding of local customers’ perceptions toward the retail formats is especially important Shopping motives may be a function of retail format, cultural, economic and social environment Prior studies on shopping motives, however, have focused on Western cultures and on a shopping mall format This study provides an exploratory examination of Korean discount shoppers’ shopping motives and their shopping typologies based on their shopping motives A total of 624 questionnaires were administered to married female discount shoppers in Korea using the intercept survey method, and 467 completed questionnaires were available for data analysis Factor analysis identified three shopping motives for patronizing discount stores: socialization, diversion and utilitarian Four groups were identified using cluster analysis and labeled as leisurely‐motivated shoppers (n =152, 341 percent), socially‐motivated shoppers (n=49, 110 percent), utilitarian shoppers (n=132, 296 percent) and shopping‐apathetic shoppers (n=113, 253 percent) The four groups significantly differ in their appraisals of patronized store in some of store attributes, repatronage intention, and money spent in a shopping trip Typologies of each cluster, discount retailing environments and managerial implications are discussed based on findings

Large-scale velocity structures in turbulent thermal convection.

Abstract: A systematic study of large-scale velocity structures in turbulent thermal convection is carried out in three different aspect-ratio cells filled with water. Laser Doppler velocimetry is used to measure the velocity profiles and statistics over varying Rayleigh numbers Ra and at various spatial positions across the whole convection cell. Large velocity fluctuations are found both in the central region and near the cell boundary. Despite the large velocity fluctuations, the flow field still maintains a large-scale quasi-two-dimensional structure, which rotates in a coherent manner. This coherent single-roll structure scales with Ra and can be divided into three regions in the rotation plane: (1) a thin viscous boundary layer, (2) a fully mixed central core region with a constant mean velocity gradient, and (3) an intermediate plume-dominated buffer region. The experiment reveals a unique driving mechanism for the large-scale coherent rotation in turbulent convection.

Latitudinal and Longitudinal Adaptation of Switchgrass Populations

Abstract: Switchgrass (Panicum virgatum L.) is a warm- season native grass, used for livestock feed, bioenergy, soil and wildlife conservation, and prairie restoration in a large portion of the USA. The objective of this research was to quantify the relative importance of latitude and longitude for adaptation and agronomic performance of a diverse group of switchgrass populations. Six populations, chosen to represent remnant prai- rie populations on two north-south transects, were evaluated for agronomic traits at 12 loca- tions ranging from 36 to 47°N latitude and 88 to 101°W longitude. Although the population × location interactions accounted for only 10 to 31% of the variance among population means, many signifi cant changes in ranking and adap- tive responses were observed. Ground cover was greater for northern-origin populations evaluated in hardiness zones 3 and 4 and for southern-origin populations evaluated in har- diness zones 5 and 6. There were no adaptive responses related to longitude (ecoregion). Switchgrass populations for use in biomass production, conservation, or restoration should not be moved more than one hardiness zone north or south from their origin, but some can be moved east or west of their original ecore- gion, if results from fi eld tests support broad longitudinal adaptation.

Evidence that actin filaments are involved in controlling the permeability of plasmodesmata in tobacco mesophyll

Abstract: Summary The role of actin filaments in regulating plasmodesmal transport has been studied by microinjection experiments in mesophyll cells of tobacco (Nicotiana tabacum L. cv. Samsun). When fluorescent dextrans of various molecular sizes were each co-injected with specific actin filament perturbants cytochalasin D (CD) or profilin into these cells, dextrans up to 20 kilodalton (kDa) moved from the injected cell into surrounding cells within 3–5 min. In contrast, when such dextrans were injected alone or co-injected with phalloidin into the mesophyll cells, they remained in the injected cells. Phalloidin co-injection slowed down or even inhibited CD- or profilin-elicited dextran cell-to-cell movement. Dextrans of 40 kDa or larger were unable to move out of the injected cell in the presence of CD or profilin. These data suggest that actin filaments may participate in the regulation of plasmodesmal transport by controlling the permeability of plasmodesmata.