Multi-objective calibration of a surface water-groundwater flow model in an irrigated agricultural region: Yaqui Valley, Sonora, Mexico

Multi-objective optimization was used to calibrate a regional surface water-groundwater model of the Yaqui Valley, a 6800 km² irrigated agricultural region located along the Sea of Cortez in Sonora, Mexico. The model simulates three-dimensional groundwater flow coupled to one-dimensional surface water flow in the irrigation canals. It accounts for the spatial distribution of annual recharge from irrigation, subsurface drainage, agricultural pumping, and irrigation canal seepage. The main advantage of the calibration method is that it accounts for both parameter and model structural uncertainty. In this case, results show that the effect of including the process of bare soil evaporation is significantly greater than the effects of parameter uncertainty. Furthermore, by treating the different objectives independently, a better identification of the model parameters is achieved compared to a single-objective approach, since the various objectives are sensitive to different parameters. The simulated water balance shows that 15&ndash;20% of the water that enters the irrigation canals is lost by seepage to groundwater. The main discharge mechanisms in the Valley are crop evapotranspiration (53%), non-agricultural evapotranspiration and bare soil evaporation (19%), surface drainage to the Sea of Cortez (15%), and groundwater pumping (9%). In comparison, groundwater discharge to the estuary was relatively insignificant (less than 1%). The model was further refined by identifying zonal <i>K_v</i> and <i>K_h</i> values based on a spatial analysis of the model residuals

Domain-based perceptions of risk:a case study of lay and technical community attitudes towards managed aquifer recharge

Despite growing water scarcity, communities in many parts of the developed world often reject technically and economically sound options for water augmentation. This paper reports findings from a study investigating risk perceptions associated with a proposed Managed Aquifer Recharge scheme in Australia. Q-Methodology was used to compare decision-making frameworks of lay community and „technical expert‟ participants. Technical expert participants were also asked to approximate the decision-making framework of a „typical‟ community member. The emerging contrasts between lay community frameworks and those approximated by technical experts suggest that there are prevailing yet errant assumptions about lay community attitudes towards new technologies. The findings challenge the characterisation of the lay community and technical experts as being in entrenched opposition with one another

Minding the Gap: An Assessment of Racial Disparity in Metropolitan Chicago

In cooperation with the Human Relations Foundation of Chicago (HRF), CURL and the Jane Addams Hull House examined inequalities among racial and ethnic groups in Chicago. Drawing from a broad range of existing data sources, researchers documented areas of reduced inequality as well as other areas of persistent inequality. Minding the Gap: An Assessment of Racial Disparity in Metropolitan Chicago examines seven quality of life measurements: income, wealth and employment, education, housing, transportation, health, the lives of children and the criminal justice system. This report, by examining these seven systems, not just one, creates a unique context for understanding both the complexity of these individual systems and the relationships between these systems. The goal of this effort is not only to educate the public about these gaps, but also to serve as a catalyst for public and social policy discussion throughout the region by initiating a community engagement process. The report was featured in a Sun-Times Editorial

Educational aspirations in inner city schools

The research aimed to assess the nature and level of pupils’ educational aspirations and to elucidate the factors that influence these aspirations. A sample of five inner city comprehensive secondary schools were selected by their Local Authority because of poor pupil attendance, below average examination results and low rates of continuing in full-time education after the age of 16. Schools were all ethnically mixed and co-educational. Over 800 pupils aged 12-14 completed a questionnaire assessing pupils’ experience of home, school and their peers. A sub-sample of 48 pupils selected by teachers to reflect ethnicity and ability levels in individual schools also participated in detailed focus group interviews. There were no significant differences in aspirations by gender or year group, but differences between ethnic groups were marked. Black African, Asian Other and Pakistani groups had significantly higher educational aspirations than the White British group, who had the lowest aspirations. The results suggest the high aspirations of Black African, Asian Other and Pakistani pupils are mediated through strong academic self-concept, positive peer support, a commitment to schooling and high educational aspirations in the home. They also suggest that low educational aspirations may have different mediating influences in different ethnic groups. The low aspirations of White British pupils seem to relate most strongly to poor academic self-concept and low educational aspirations in the home, while for Black Caribbean pupils disaffection, negative peers and low commitment to schooling appear more relevant. Interviews with pupils corroborated the above findings and further illuminated the factors students described as important in their educational aspirations. The results are discussed in relation to theories of aspiration which stress its nature as a cultural capacity

Teaching Positive Networking For Life-long Impact

As college communication instructors, we could further assist students by teaching the value of positive networking.&nbsp; This article provides (1) a foundation for positive networking and (2) several successful ways in which students can begin building a strong long-lasting network of professional relationships during the semester&hellip;and for their entire careers.&nbsp

Teaching Job Search Written And Oral Communication Skills Through An Integrated Approach

Business educators understand the value of improving students written and oral communication skills. However, too often assignments used to develop these important skills are taught in isolation. The purpose of this article is to enhance a students written and oral skills by integrating all aspects of the job search written documents and interview practice while utilizing a student-selected job announcement. Each student must find a job announcement for an internship or career position that is consistent with the students major. The job announcement should list the organizations needs in terms of degree required and specific skills. This article outlines an integrated process of teaching written and oral communication skills through the entire job search. Thus, the job announcement is the focal point for the students resume, cover letter, career portfolio, and mock interview. Student feedback from the integrated process described in this article has been very positive and rewarding. Students consistently indicate their satisfaction when they successfully apply their self-marketing tools and secure a desired position prior to graduation

Questioning and organization studies

This essay identifies a cleavage in the organisation literature that separates ‘questions’ and ‘questioning’ at a very fundamental philosophical level. On the one hand, the objective notion of ‘questions’ has already been well addressed within organization studies, evident in how scholars have scrutinized questions as objects of analysis; for example, paying close attention to the forms and functions of questions as instruments of research. More recently, the linguistic turn within the social sciences has influenced how organization studies researchers have considered organizations as discursive entities, with debate extending to the discursive nature of ‘questions’. On the other hand, the process of ‘questioning’ remains under-researched. From one perspective, questioning the process of questioning is challenging, but, as we submit, this is precisely where American pragmatism can be helpful. As we explore in this essay, the forward-looking quality of pragmatist inquiry is what motors the process of questioning. Our pragmatist-inflected argument is that questioning does not have to always serve critique and position building in the organization studies field. Rather, questioning out of curiosity can build new dialogue and open up new methodological avenues. This may help change the habitual ways in which we explore ideas, problems and situations in organization studies as well as lead to more democratic forms of organizing. Crucially, in this essay we are not looking for ultimate ‘answers’; rather we hope to excite discussion about questioning by giving prominence to something that is so ubiquitous and taken-for-granted as to be invisible to many of us as an object of inquiry

Ethical Reputation, Not Fees Drive Auditor Selection At Inc. 500 Companies

Acquiring a new client is an arduous task.&nbsp; Accordingly, losing an important client can be devastating to a firm and demoralizing to the accounting team assigned to the client, particularly if the client represents a significant portion of the firm&rsquo;s revenue stream.&nbsp; This research study reflects the concern of CEOs that poor customer service can result in firing the present accounting firm. Besides completing the work required by the client, the accounting firm needs to build the perception of being a problem-solver and an initiator of ideas that markedly helps a client&rsquo;s overall financial health and well-being.&nbsp; To do otherwise will result in the client putting its need for professional services &ldquo;out to bid.&rdquo