Barriers and Solutions to Recruitment Strategies of Students into Post-Secondary Agricultural Education Programs: A Focus Group Approach

This qualitative study utilized focus group interviews of secondary Illinois agricultural education teachers to investigate the continuing problem of student recruitment into teacher preparation pro-grams of agricultural education. Using signal theory, image theory and person-organization fit theory, the researchers identified five themes relating to recruitment issues: time, the economy, family, technology and image. Each theme is described through the words of the participants and solutions are suggested for improving recruitment

Teaching Control Programming Using Programmable Automation Controllers

Introductory control programming was included as a required course for agricultural systems students. A programmable automation controller (PAC) was programmed with a flowchart paradigm to monitor and control applications. An ex post facto research design was used, with a questionnaire to obtain student feedback. The PAC instructional unit and student feedback are described. Ninety‐two percent of students agreed the PAC unit of the course helped improve their problem‐solving skills

Influence of soil properties and geometrical characteristics of sediment-filled valleys on earthquake response spectra.

International audienceIt is well-known that the response of a site to seismic excitation depends on both its local topography and its soil properties. Although the recent building codes (i.e. Eurocode8) incorporate these site effects, they only take into account unidimensional ones and ignore complex cases due to two-dimensional irregular configurations. Recent work has been mainly focusing either on the development of numerical methods allowing always more precise results or on the elaboration of simplified approaches usable for engineering purposes. The aim of this work is to propose a simple criterion, combining soil properties and geometrical characteristics of valleys to estimate the amplification of earthquake response spectra in sediment-filled valleys. We will first study the response of unidimensional soil layers to obtain a criterion that can be extended to bidimensional configurations. The seismic input is a synthetic SV Ricker wave with vertical incidence. Horizontal displacements at surface points are computed by using the HYBRID code which combines finite elements in the near field and boundary elements in the far field (FEM/BEM)

Assessing Extension Education Efforts in Afghanistan through the Eyes of U.S. Agricultural Support Personnel

Assessment of agricultural extension education efforts in Afghanistan was conducted through a qualitative case study of eight U.S. support personnel serving in the country. Security & access and provincial diversity were two overriding factors which determined how the three key attributes of assessment, content and process (Barrick et al., 2009) were able to function in an Afghan agricultural extension education program. Respondents indicated training should focus on young farmers and local farm demonstration sites should be essential program components. Respondents stressed recruitment of agents from local districts when this would not imperil the agents or their families. Respondents also insisted education should be the primary role of the Afghan extension agent, and networking to facilitate an interchange of ideas among Afghan professionals should be encouraged

A Descriptive Study on the Preparation of Student Teachers to Work with Diverse Populations

If the agricultural education profession is to attract a more diverse audience to pursue agriculture as a viable career path, the secondary teacher education pathway must be reevaluated. The purpose of the study was to describe the degree to which the involved agricultural education programs prepared their students to work with diverse populations. The study also examined attitudes and beliefs of the student teachers regarding diversity. The results of the study suggest that this group of student teachers was not adequately exposed to diversity neither in their student teaching experience nor in their university preparation. To assist the national agricultural education goal of diversity in agriculture, a national study should be conducted to determine if there is a correlation between minority enrollment in agriculture and the race and gender of the teacher educator

Learning Disabled Student Needs Met Through Curriculum Redesign of the Illinois Agricultural Education Core Curriculum

This quasi–experimental pilot study included agricultural education students with Specific Learning Disabilities (SLD) in five high schools in the federally designated economically distressed area called the Illinois Delta Region. A unit of instruction taken from the existing 165 units of The Illinois Core Curriculum for Agriculture was redesigned in a manner appropriate to SLD students. Students from the five selected programs were randomly assigned to treatment and control groups. Results from pre– and posttests in this study found the redesigned curriculum for SLD students effectively increased learning for both SLD and traditional students

A fully coupled damage-plasticity model for unsaturated geomaterials accounting for the ductile-brittle transition in drying clayey soils

International audienceThis paper presents a hydro-mechanical constitutive model for clayey soils accounting for damage-plasticity couplings. Specific features of unsaturated clays such as confining pressure and suction effects on elastic domain and plastic strains are accounted for. A double effective stress incorporating both the effect of suction and damage is defined based on thermodynamical considerations, which results in a unique stress variable being thermodynamically conjugated to elastic strain. Coupling between damage and plasticity phenomena is achieved by following the principle of strain equivalence and incorporating the double effective stress into plasticity equations. Two distinct criteria are defined for damage and plasticity, which can be activated either independently or simultaneously. Their formulation in terms of effective stress and suction allows them to evolve in the total stress space with suction and damage changes. This leads to a direct coupling between damage and plasticity and allows the model to capture the ductile/brittle behaviour transition occurring when clays are drying. Model predictions are compared with experimental data on Boom Clay, and the flexibility of the model is illustrated by presenting results of simulations in which either damage or plasticity dominates the coupled behaviour

A multi-scale seismic response of two-dimensional sedimentary valleys due to the combined effects of topography and geology.

International audienceIt is well known that the response of a site to seismic excitation depends on the local topographical and geological conditions. The current building codes already take into account unidimensional site effects but ignore complex site effects due to two-dimensional irregular configurations. The aim of this work is to contribute to the establishment of a simple predictive method to estimate site effects. The horizontal ground movements at the surface of sedimentary valleys subjected to SV waves with vertical incidence are calculated by using the HYBRID program, combining finite elements in the near field and boundary elements in the far field (FEM/BEM). A parametric study is conducted to examine the combined effects of topography and geology on the amplification of the response spectrum at various points across the valley. The influence of different parameters is considered, such as filling ratios (from empty to full valleys), impedance contrasts between bedrock and sediments, and dimensions

Identifying the Roles and Challenges of Female Agricultural Teachers Employed in Illinois: A Descriptive Study

In 1980, one of the first female high school agriculture teachers opened the door to her classroom at Arthur High School, Arthur, Illinois. Since that time, the number of female high school agriculture teachers has grown significantly. A descriptive study was conducted to identify and describe the roles and challenges of female high school agricultural teachers employed in Illinois. The results of the study can be used as a preparation tool for those females who decide to pursue agricultural education as a career, and can be used to encourage more female students to enter this challenging career. This study also describes the demographics, background, and support given to female teachers of agriculture in Illinois prior to and after college. Almost half the current female high school agriculture teachers are under the age of 30, and 52% of these teachers are instructors of Agricultural Mechanization, a once male-dominated area of instruction