Three Years of Global Positioning System Experience on International Space Station

The International Space Station global positioning systems (GPS) receiver was activated in April 2002. Since that time, numerous software anomalies surfaced that had to be worked around. Some of the software problems required waivers, such as the time function, while others required extensive operator intervention, such as numerous power cycles. Eventually, enough anomalies surfaced that the three pieces of code included in the GPS unit have been re-written and the GPS units were upgraded. The technical aspects of the problems are discussed, as well as the underlying causes that led to the delivery of a product that has had numerous problems. The technical aspects of the problems included physical phenomena that were not well understood, such as the affect that the ionosphere would have on the GPS measurements. The underlying causes were traced to inappropriate use of legacy software, changing requirements, inadequate software processes, unrealistic schedules, incorrect contract type, and unclear ownership responsibilities

Meeting the Need for K-8 Teachers for Classrooms with Culturally and Linguistically Diverse Students: The Promise and Challenge of Early Field Experiences

The writers present the findings of their study focused on teacher learning through early fieldwork experiences to address the problem of teachers working with a culturally and linguistically diverse student population. Data were analyzed from an archive collected from approximately 500 students enrolled in six undergraduate child development courses at three state university campuses located in urban areas of California. Findings suggest that early field experiences provide participants with opportunities for career goal clarification, and the context of field experience is significant and may lead to outcomes beyond the initial goal of the experience

Global Positioning Svstem (GPS) on International Space Station (ISS) and Crew Return Vehicle (CRV)

Both the International Space Station and Crew Return Vehicle desired to have GPS on their vehicles due to improve state determination over traditional ground tracking techniques used in the past for space vehicles. Both also opted to use GPS for attitude determination to save the expense of a star tracker. Both vehicles have stringent pointing requirements for roll, pitch, and heading, making a sun or earth sensor not a viable option since the heading is undetermined. This paper discusses the technical challenges associated with the implementation of GPS on both of these vehicles. ISS and CRY use the same GPS receiver, but have faced different challenges since the mission of each is di fferent. ISS will be discussed first, then CRY. The flight experiments flown on the Space Shuttle in support of these efforts is also discussed

Supporting Rural Seniors Aging in Place Using Telehealth

Background: The United States is witnessing a demographic shift in that the number of Americans aged 65 and older is projected to nearly double from 52 million in 2018 to 95 million by 2060; the percentage of the 65 and older age group will increase from 16 % to 23 % (Administration for Community Living, 2018). In this ever-growing population, the American Association of Retired Persons (AARP) 2018 survey found that 76% of Americans over the age of 50 would prefer to remain in their current residence and 77% would like to continue living in their community as long as possible; however, 59% foresee that they will be able to stay in their community, either in their current home (46%) or a different home within their community (13%) (Binette & Vasold, 2019). Problem Statement: As of 2022, there is limited aging in place (AIP) programming that addressed the varying needs of rural seniors and their QOL. Purpose: To evaluate the needs of rural older adults residing in Crowley County, Colorado to create an AIP program that is tailored to their specific needs and context, and to create a manual that provides a structure for a therapist that wishes to create their own AIP program in their desired location. The created program includes 5 modules (technology supporting AIP, occupations as a means, community mobility: transportation and occupation in rural communities, lifestyle impact on health, home modifications to enhance accessibility to occupations) that were included per the results of surveys, interviews, and a literature review. Conclusion: Occupational therapists have the knowledge and skillset required to create both efficacious and cost-effective telehealth programs in rural communities. This program can be readily modified to fit the unique demographics of a chosen population. There is much work to be done to ensure equity regarding aging, one viable option to accomplish this aim is to use telehealth programming.https://soar.usa.edu/otdcapstonessummer2022/1004/thumbnail.jp

Incorporation of Service Learning into an Interpersonal Skills for Leadership Course Using the SERVE Model

Interpersonal Skills for Leadership has been taught at the University of Nebraska-Lincoln for more than 30 years and has been a key course students use to satisfy the communication/interpersonal skills requirement in the College of Agricultural Sciences and Natural Resources. While interpersonal skills topics are covered and practiced in the course, additional practice occurs through service learning with a client in a community agency. This requirement equates to approximately 6,500 service hours provided annually in the Lincoln community. This level of service requires a well-developed placement and evaluation process. The course incorporates the SERVE model for integrating service learning into the curriculum. Select the service: a core group of agencies have been cooperators for many years. In order to become a cooperating agency a good match must exist between agency mission, course intent, and opportunities for students to develop one-to-one relationships over a semester

Tightening research-practice connections: Applying insights and strategies during design charrettes

McKenney, S., Gomez, K., & Reiser, B. (2012). Tightening research-practice connections: Applying insights and strategies during design charrettes. In J. van Aalst, K. Thompson, M. J. Jacobson, & P. Reimann (Eds.), The future of learning: Proceedings of the 10th international conference of the learning sciences (Vol. 2, pp. 590-591). Sydney, NSW, Australia: International Society of the Learning Sciences.Design charrettes feature hands-on activities for capturing, analyzing and developing the knowledge, values, and vision of its participants. In this workshop, using a design charrette approach, participants will (a) consider how their research informs formal and informal practice, (b) learn about a variety of outlets for bringing research to practice audiences, and (c) consider who might benefit from learning about the research. Participants will discuss different modes of research-practice interaction, and their implications for the production and use of new knowledge. Individuals will analyze their current approaches to knowledge dissemination for use and participants will share existing strategies to stimulate fruitful and mutually informing research-practice connections. Participants will designs their own research-practice connections, both through individual projects and through the ISLS community

Lessons Learned from Two Years of On-Orbit Global Positioning System Experience on International Space Station

The Global Positioning System Subsystem (GPS) for International Space Station (ISS) was activated April 12,2002 following the installation of the SO truss segment that included the GPS antennas on Shuttle mission STS-110. The ISS GPS receiver became the primary source for position, velocity, and attitude information for ISS two days after activation. The GPS receiver also provides a time reference for manual control of ISS time, and will be used for automatic time updates after problems are resolved with the output from the receiver. After two years of on-orbit experience, the GPS continues to be used as the primary navigation source for ISS; however, enough problems have surfaced that the firmware in the GPS attitude code has had to be totally rewritten and new algorithms developed, the firmware that processed the time output from the GPS receiver had to be rewritten, while the GPS navigation code has had minor revisions. The factors contributing to the delivery of a GPS receiver for use on ISS that requires extensive operator intervention to function are discussed. Observations from two years worth of GPS solutions will also be discussed. The technical solutions to the anomalous GPS receiver behavior will be discussed