The Rise and Run of Women Corporate Leaders

The purpose of this research was to understand the contexts that support the barriers to women’s advancement and to identify the conditions under which women leaders overcome the barriers to attain top corporate leadership positions. I have identified and discussed three distinct approaches for understanding how we can increase women’s representation and influence in the executive and director ranks within top U.S. corporations. The first approach investigates the complexities of leveraging the social and cultural capital attained through post-secondary education in order gain entry into the corporate elite. The second approach examines gendered stereotypes of risk-taking versus the organizational risk-taking realities that are inherent in women corporate leaders’ climb to the top. The final approach considers the impact of external pressures in increasing the prevalence, power and influence of women corporate directors. Findings reveal some of the complexity in both the antecedents and consequences of gender diversity within top leadership of large U.S. firms. Taken together, the results convey the organizational and societal contexts that lead to more diverse corporate leadership

Next Generation Open Textbooks: A Case Study

Design Across the Disciplines: Learning the value of communication design through practice” is an OER (open educational resource), digital textbook under prototype testing in a media design course. The text is created in collaboration with a librarian, two faculty from different colleges and two students who have completed the course. This interdisciplinary team was formed with the directive to embrace the powers of design thinking through digital content to develop a product that truly recognizes the needs of the primary users, our students and key stakeholders, the faculty. Several semesters of student feedback provided the insights for considering textbook cost; the need for continual access to the text even after the course is completed; simplicity of use; and the need for multi-modal content. From this feedback, the design evolved to employ the chunking of content with scalable vector illustrations; limited and direct text; short, highly directive instructional videos; and assessments that provide internship and employment artifacts that are evidence of a student’s digital design capabilities. The design is a prototype in action being tested in class as well as through a research study on faculty perceptions to OER textbooks. The execution of this textbook is based not only in the empathetic approach to gathering user needs through the employment of several prototypes and observations, but also through student and faculty interviews to determine desirability, viability and feasibility conditions for success. This presentation shares what a librarian, marketing professor, design professor and graphic design student learned through a two-year process in developing a OER digital textbook

Mars Dust Storms: Interannual Variability and Chaos

The hypothesis is that the global climate system, consisting of atmospheric dust interacting with the circulation, produces its own interannual variability when forced at the annual frequency. The model has two time-dependent variables representing the amount of atmospheric dust in the northern and southern hemispheres, respectively. Absorption of sunlight by the dust drives a cross-equatorial Hadley cell that brings more dust into the heated hemisphere. The circulation decays when the dust storm covers the globe. Interannual variability manifests itself either as a periodic solution in which the period is a multiple of the Martian year, or as an aperiodic (chaotic) solution that never repeats. Both kinds of solution are found in the model, lending support to the idea that interannual variability is an intrinsic property of the global climate system. The next step is to develop a hierarchy of dust-circulation models capable of being integrated for many years

How hummingbirds hum: acoustic holography of hummingbirds during maneuvering flight

Hummingbirds make a characteristic humming sound when they flaptheir wings. The physics and the biological significance of hummingbird aeroacoustics is still poorly understood. We used acoustic holography and high-speed cameras to determine the acoustic field of six hummingbirds while they either hovered stationary in front of a flower or maneuvered to track flower motion. We used a robotic flower that oscillated either laterally or longitudinally with a linear combination of 20 different frequencies between 0.2 and 20 Hz, a range that encompasses natural flower vibration frequencies in wind. We used high-speed marker tracking to dissect the transfer function between the moving flower, the head, and body of the bird. We also positioned four acoustic arrays equipped with 2176 microphones total above, below, and in front of the hummingbird. Acoustic data from the microphones were back-propagated to planes adjacent to the hummingbird to create the first real-time holograms of the pressure field a hummingbird generates in vivo. Integration of all this data offers insight into how hummingbirds modulate the acoustic field during hovering and maneuvering flight

Analyst-Focused Arabic Information Retrieval

An English-Arabic Cross-Language Information Retrieval Environment was created in which the analyst can query an Arabic database in English and retrieve a set of relevant Arabic documents. The retrieved Arabic documents are automatically translated into English to facilitate readability by the English-only analyst. Proper names of people, places, and organizations are extracted from the retrieved documents and transliterated from Arabic into English. They are presented to the analyst and serve to provide a brief summarization of the retrieved document search query in English. Cross-Language Information Retrieval (CLIR), itself a desideratum in the ARDA workshop, is a special case of Information Retrieval where retrieval is not restricted to the language of the query but queries in one language retrieve documents in other language(s) (Oard and Diekema, 1998). The Arabic that is used in the system is called Modern Standard Arabic (MSA). MSA is the formal Arabic that is used throughout the Arab world in news and broadcast media, and the lingua franca of the Arab. MSA has an estimated 200 million speakers living in Iraq, the Arabian Peninsula, the Levant, Egypt, and Northern Africa

Dynamics of the outer planets : 1992 Summer Study Program in Geophysical Fluid Dynamics

The topic this summer was "The Dynamics of the Outer Planets." Andrew Ingersoll gave an excellent review of the current understanding of the strcture of the atmospheres of Jupiter, Neptune, Saturn, and Uranus. He presented the flow structures inferred from the information gathered by the Voyager probes and other observations. The models of the circulations of the interior and of the weather layer - the jets and vortices that we see in the images - were discussed. Jun-Ichi Yano gave further discussions on vortex dynamics in the lab, analytical, and numerical models as applied to the outer planets. Finally, Andy returned with a discussion of thin atmospheres (some so thin that they disappear at night) and new approaches to the dynamics of the interiors. These lectures provided a thorough background in both the data and the theory. As usual, we had talks (or what are sometimes called interactive seminars!) from many visitors during the summer, some directly related to the main topic and others covering other new research in geophysical fluid dynamics. From these, the fellows and staff found new aras for collaborative research and new ideas which they may explore after the summer. Finally, the summer was completed with talks from the fellows on their individual research during the summer. These reports reflect the thought and energy that went into learning new topics and formulating new problems. We look forward to seeing fuller versions of these in journal articles. We gratefully acknowledge the support of the National Science Foundation and the Office of Naval Research. The assistance of Jake Peirson and Barbara Ewing-DeRemer, made the summer, once again, pleasant and easy for all.Funding was provided by the National Science Foundation under Grant No. OCE8901012