Lessons In and Out of School

What are we saying to children when we leave the creativity to others in a visual environment, infused with “attitude”, snobbery, acquisitiveness and Pollyanna innocence? We’re saying that we approve this message. Visual arts teach media literacy in an atmosphere that implicitly uses vices to secure attention. School experiences cannot compete. Parents and teachers, pleading incompetence, pass undiscerning choices to the next generation. Educational illustration typically amounts to copy-machine ready, poorly drawn, saccharin cartoons. Standards exemplified by the likes of Szyk, Holling and others lie hidden on the shelves. Dismay and consternation over the failure to plumb the depths of humor and insight defer to the powerful convenience of the copy machine. Saturation in media environments indoctrinates and disarms our ability to think through opinions and compulsions. Flexible resemblance works in the small world of painted images and in large media environments that conflate sentiment with material goods and milestones with products for purchase. Developing the ability to discern the attributes of our visual world as well as learning that we can express ourselves artistically allows us to fulfill an important aspect of our destiny as human beings. I focus on producing artwork in watercolor, an antiquated medium. My studies began before the advent of digital media and before word of painting’s irrelevance spread to my Midwestern art school

Cueing light configuration for aircraft navigation

A pattern of light is projected from multiple sources located on an aircraft to form two clusters. The pattern of each cluster changes as the aircraft flies above and below a predetermined nominal altitude. The initial patterns are two horizontal, spaced apart lines. Each is capable of changing to a delta formation as either the altitude or the terrain varies. The direction of the delta cues the pilot as to the direction of corrective action

Perspective Imagery in Synthetic Scenes used to Control and Guide Aircraft during Landing and Taxi: Some Issues and Concerns

Perspective synthetic displays that supplement, or supplant, the optical windows traditionally used for guidance and control of aircraft are accompanied by potentially significant human factors problems related to the optical geometric conformality of the display. Such geometric conformality is broken when optical features are not in the location they would be if directly viewed through a window. This often occurs when the scene is relayed or generated from a location different from the pilot s eyepoint. However, assuming no large visual/vestibular effects, a pilot cad often learn to use such a display very effectively. Important problems may arise, however, when display accuracy or consistency is compromised, and this can usually be related to geometrical discrepancies between how the synthetic visual scene behaves and how the visual scene through a window behaves. In addition to these issues, this paper examines the potentially critical problem of the disorientation that can arise when both a synthetic display and a real window are present in a flight deck, and no consistent visual interpretation is available

Visually Guided Control of Movement

The papers given at an intensive, three-week workshop on visually guided control of movement are presented. The participants were researchers from academia, industry, and government, with backgrounds in visual perception, control theory, and rotorcraft operations. The papers included invited lectures and preliminary reports of research initiated during the workshop. Three major topics are addressed: extraction of environmental structure from motion; perception and control of self motion; and spatial orientation. Each topic is considered from both theoretical and applied perspectives. Implications for control and display are suggested

Sexual Preference, Feminism, and Women's Perceptions of Their Parents

12 pagesIn an attempt to clarify the relation between parental variables, sexual preference, and sex-role attitudes, three groups of women were studied: lesbian feminists, heterosexual feminists, and heterosexual traditional women. The women were asked about their perceptions of their parents when they were in high school. The groups differed more from each other with respect to their perceptions of their fathers than their mothers. The perceived attitudes.of the father were much more important in differentiating lesbian feminists from heterosexuals than in differentiating heterosexual feminists from heterosexual traditionals. Both the heterosexual groups (feminist and traditionals) reported having a more affectionate and involved father who also encouraged them more in the expression of anger than the lesbian feminists reported. The results suggest women's father relationships must not be obscured in research and support Johnson's hypothesis that the father relationship is more central than the mother relationship in sex typing and especially in the specifically sexual aspects of sex typing

Best Laid Plans: How Community College Student Success Courses Work

Objective: Beyond understanding whether first-year student success interventions in community colleges are effective—for which there is mixed evidence in the literature—this study’s purpose was to uncover how they work to realize observed outcomes, including at times unanticipated undesirable outcomes. Method: This qualitative multiple case study used cultural historical activity theory (CHAT) to unpack interactions and tensions among programmatic-level features and individual-level experiences and actions. We conducted classroom observation, document analysis, and interviews with instructors and students in four student success courses across diverse contexts. Results: Regardless of particular designs and course emphases, we found in all cases a blurring of activity elements, wherein learning tools and learning goals were often coterminous, or instructors effectively took on the role of learning tools themselves, in the form of object lessons and mediators, for instance. Courses had a distinctive character as rehearsal for college that simultaneously created a welcoming peer environment but an uncertain learning and assessment environment. Contributions: Because of their nature as metacourses—college courses about college-going—success courses’ means and ends ultimately may be functionally inseparable, thus helping to explain their continual evolution and contested roles. Whereas such courses are typically justified as means to teach college skills, we found this utilitarian rationale to be insufficient to describe the experiential dimensions of social learning that participants reported. Instead, we found these courses reveal how college-going is an emergent social literacy, one that a single course is insufficient to fully realize

Investigation of Oxidation Profile in PMR-15 Polyimide using Atomic Microscope (AFM)

Nanoindentation measurements are made on thermosetting materials using cantiever deflection vs. piezoelectric scanner position behavior determined by AFM. The spring model is used to determine mechanical properties of materials. The generalized Sneddon's equation is utilized to calculate Young's moduli for thermosetting materials at ambient conditions. Our investigations show that the force-penetration depth curves during unloading in these materials can be described accurately by a power law relationship. The results show that the accuracy of the measurements can be controlled within 7%. The above method is used to study oxidation profiles in Pl\1R-15 polyimide. The thermo-mechanical profiles ofPNIR-15 indicate that the elastic modulus at the surface portion of the specimen is different from that at the interior of the material. It is also shown that there are two zones within the oxidized portion of the samples. Results confirm that the surface layer and the core material have substantially different properties

Fluorides in groundwater and its impact on health

Abstract: Fluoride is a naturally occurring toxic mineral present in drinking water and causes yellowing of teeth, tooth problems etc. Fluorspar, Cryolite and Fluorapatite are the naturally occurring minerals, from which fluoride finds its path to groundwater through infiltration. In the present study two groundwater samples, Station I and Station II at Hyderabad megacity, the capital of Andhra Pradesh were investigated for one year from January 2001 to December 2001. The average fluoride values were 1.37 mg/l at Station I and 0.91 mg/l at Station II. The permissible limit given by BIS (1983) 0.6-1.2 mg/l and WHO (1984) 1.5 mg/l for fluoride in drinking water. The groundwaters at Station I exceeded the limit while at Station II it was within the limits. The study indicated that fluoride content of 0.5 mg/l is sufficient to cause yellowing of teeth and dental problems

Adhesive Contact to a Coated Elastic Substrate

We show how the quasi-analytic method developed to solve linear elastic contacts to coated substrates (Perriot A. and Barthel E. {\em J. Mat. Res.}, {\bf 2004}, {\em 19}, 600) may be extended to adhesive contacts. Substrate inhomogeneity lifts accidental degeneracies and highlights the general structure of the adhesive contact theory. We explicit the variation of the contact variables due to substrate inhomogeneity. The relation to other approaches based on Finite Element analysis is discussed