Stripes on a 6-Leg Hubbard Ladder

While DMRG calculations find stripes on doped n-leg t-J ladders, little is known about the possible formation of stripes on n-leg Hubbard ladders. Here we report results for a 7x6 Hubbard model with 4 holes. We find that a stripe forms for values of U/t ranging from 6 to 20. For U/t ~ 3-4, the system exhibits the domain wall feature of a stripe, but the hole density is very broadened.Comment: 4 pages, 5 figure

Predicting job satisfaction among Iowa community college adjunct faculty members: Use and application of Herzberg\u27s motivation-hygiene theory

Over the past few decades, institutions of higher education have increased their dependence on part-time faculty members (Gappa & Leslie, 1993). Factors influencing this trend include: (a) increases in instruction-related costs relative to revenues; (b) efforts by academic administrators to achieve staffing flexibility; (c) the number of individuals who have been unable to obtain full-time teaching positions; and (d) the growth of community colleges which traditionally have employed large percentages of part-time faculty members (Valadez & Antony, 2001; NCES, 2000). The purpose of this study was to examine the current level of adjunct faculty \u3ebold\u3ejob satisfaction in Iowa\u27s 15 community colleges and to determine if satisfaction variables can be used to predict overall job satisfaction. The unit of analysis was the adjunct faculty members who responded to the Iowa Community College Adjunct Faculty Survey 2009. The population of adjunct faculty members targeted for this study included all adjunct faculty members employed at one of Iowa\u27s 15 community colleges during the 2008-09 academic year. The final sample included all of Iowa\u27s 15 community colleges, and 3,412 adjunct faculty members were eligible to complete the survey. For the purpose of this survey, respondents who did not complete questions regarding job satisfaction were eliminated from the sample. A final sample of 930 participants was included in the data set. The survey respondents\u27 ratings on how job satisfaction was perceived were regressed on six independent variables associated with job satisfaction. The six independent variables (gender, age, benefits, instruction, relationships, and physical environment) accounted for 56% of the variance explained in the regression model and were statistically significant at the last step. Findings reveal a strong relationship between independent variables and the dependent variable, overall job satisfaction. Finally, the findings of this study provide valuable information to human resource directors and other campus administrators. The information from this study provides empirical data that can be used to inform hiring practices and guide programming designed to improve the job satisfaction of adjunct faculty members

Using music to create effective curriculum for English language development

Research supporting the viability of music to promote language and literacy development as well as the theory of multiple intelligences suggests that any sound educational program employ a multifaceted approach to teaching and learning. This project created a thematically based multiple intelligence curriculum for first grade English language learners that emphasized the use of song

Geochemical, Petrologic, and Structural Characterization at Multiple Scales of Deformation Associated with the Punchbowl Fault, Southern California

Three traverses across the exhumed trace of the Punchbowl fault zone in the 11 Pelona Schist, southern California, were examined at the millimeter to kilometer scales to determine the morphology, deformation mechanisms, and geochemistry of the fault zone in schistose rocks. The Pelona Schist is predominantly a quartz-albite-muscovite-actinolite schist with associated minor metabasalts. The Punchbowl fault zone, which is exhumed 2-4 km, has 44 km of right lateral slip, and is composed of a fault core enveloped by a damaged zone. The fault core is a region of extreme slip localization that records most fault displacement. Deformation in the fault core is dominated by grain-size reduction accompanied by fluid-dominated alteration, in contrast to the damage zone, where deformation is dominated by brittle and semi-brittle fracturing, cataclasis, and slip. Portions of the Punchbowl fault have multiple fault cores, with each fault core less than 10 cm thick. The thickness of a fault depends upon the type of deformation measured and the scale of observation. Mesoscopic fractures begin 50 m from the fault core, whereas the onset of fault-related microfractures occurs at approximately 40 m from the fault core . A geochemical signature based on whole-rock geochemistry suggests a fault thickness of less than 10 m. Grain-size reduction occurs over a 10 m thick region and mineralogic changes occur over a region 20-30 m thick. Reorientation of preexisting foliation occurs over a zone 30 m thick. Fault-core morphology and textures are similar to those in the Punchbowl fault to the northwest, where it displaces sedimentary rocks, and the San Gabriel fault, which formed in crystalline rocks. This suggests that the processes that form foliated, finegrained, cataclasite-dominated fault cores of large displacement faults are similar for diverse lithologies. The composition of the fault core is variable along strike, with little geochemical or mineralogical homogenization. Whereas processes that form fault cores are similar, localized interaction of fluids caused compositional variability within the core. Changes in fault composition and fluid-rock interactions may result in different fault properties and behaviors

Outer raceway fault detection and localization for deep groove ball bearings by using thermal imaging

This paper discusses outer raceway fault detection and localization for rolling element bearings by means of thermal imaging. In particular, deep groove ball bearings have been monitored. Whereas bearings in industrial applications are usually fully covered, the used test setup allows to monitor the uncovered bearings to understand their heat increase and propagation. The main contribution of this paper is the methodology to process and analyse the thermal data of the bearings. The presented methodology is applied on both a healthy bearing and a bearing with outer raceway fault. By revealing significantly higher temperatures for the faulty bearing than for the healthy bearing, thermal imaging enables fault detection. Additionally, the stationary characteristic of the outer ring allows to locate the outer raceway fault by means of its thermal impact

Psychological Capital Intervention: A Potential Tool for Improving Organizational Commitment in Sales Organizations

Given current challenges related to talent in sales organizations, the need for enhanced recruiting and retention of top-tier talent has never been more critical. Extant research has demonstrated the high cost of employee turnover and the importance of organizational commitment for the sales force. This report explores the potential of utilizing psychological capital (PsyCap) in sales organizations in order to gain a competitive advantage through increased organizational commitment. The authors found strong, positive relationships between PsyCap and organizational support, job satisfaction, and organizational commitment. Implications for academic researchers and a proposed intervention strategy for managers seeking to improve organizational commitment are included with this report

The Business Incubator: A Rural Economic Development Tool

In the 1980s universities and economic development agencies encouraged the establishment of business incubators to bolster economic development. Business incubators are designed to cultivate the formation of new business ventures in an environment conducive to success

Guidance in Model-based Compilations

The modeler should not be burdened with maintaining an overview over all potential conflicts. They should further be able to understand what is happening. Model-based compilers and modeling tools in general should guide a modeler.The KIELER Compiler constructs transformation snapshots and augmented models automatically during compilation. We demonstrate six different transient views that can help the modeler to refine their models and to solve modeling issues, such as causality problems in synchronous languages

Factors influencing organization commitment: Internal marketing orientation, external marketing orientation, and subjective well-being

Purpose The purpose of this paper is to investigate the effects of internal marketing orientation, external marketing orientation, and subjective well-being on the affective organizational commitment of frontline employees. Design/methodology/approach Previous research was used to develop hypotheses and develop a questionnaire for this project. An online survey was completed by 108 frontline employees. Findings The hypothesized model of all three variables having positive effects on organization commitment was supported. Internal marketing orientation, external marketing orientation, and subjective well-being were significant predictors of affective organizational commitment. Research limitations/implications A key limitation of this study is the cross-sectional, data collection design. A longitudinal study would allow for increased confidence when evaluating causal inferences with this type of data. Practical implications This paper identifies how managers may be able to use internal marketing orientation, external marketing orientation, and subjective well-being as potential tools to increase the affective organizational commitment of frontline employees. Social implications This paper demonstrates the importance of subjective well-being as an important component of life for an employee and success of the organization. Originality/value This paper extends current research on affective organizational commitment by testing a new model that includes internal marketing orientation, external marketing orientation, and subjective well-being as predictor variables