291,707 research outputs found
LISA Pathfinder: First steps to observing gravitational waves from space
No full textLISA Pathfinder, the European Space Agency's technology demonstrator mission for future spaceborne gravitational wave observatories, was launched on 3 December 2015, from the European space port of Kourou, French Guiana. After a short duration transfer to the final science orbit, the mission has been gathering science data since. This data has allowed the science community to validate the critical technologies and measurement principle for low frequency gravitational wave detection and thereby confirming the readiness to start the next generation gravitational wave observatories, such as LISA.This paper will briefly describe the mission, followed by a description of the science operations highlighting the performance achieved.Details of the various experiments performed during the nominal science operations phase can be found in accompanying papers in this volume
Adolescent body dissatisfaction and the media
No full textIn this paper, an examination of the correlation between the use of sexual images in advertising and feelings of discontent with body image in adolescent girls will take place. It is this author’s opinion that the over-use of sexual images in advertising negatively effects how young girls perceive their bodies. This author’s research question examined whether the increased use of sex as an advertising tool is associated with the way that an adolescent girl perceives her own body. A literature search was also completed in which it was found that there is significant evidence to support this author’s claim. A broad internet search was done to obtain the most common keywords, and then a more in-depth search was done to find appropriate articles.M.A.L.S.Includes bibliographical referencesby Lisa M. Forber
Who Are Athletic Advisors? State of the Profession
No full textCitation: Lisa M. Rubin (2017) Who Are Athletic Advisors? State of the Profession. NACADA Journal: 2017, Vol. 37, No. 1, pp. 37-50.The field of athletic advising has existed since the 1970s. In the early 1990s, the National Collegiate Athletic Association mandated that higher education institutions provide academic support for student-athletes. Few researchers have identified those serving as athletic advisors, so the literature features little data on advisor demographics, training, education, and work responsibilities. Therefore, the background and experiences of 277 members of the National Association of Academic Advisors for Athletics, who responded to a survey, were explored. Specifically, athletic advisor educational and training background, burnout levels, meaning of the profession as participants describe it, advice for prospective advisors, and the knowledge they wish they had gained before entering the field are addressed. Dramaturgy was utilized as a framework for analyzing this research
In-flight Diagnostics in LISA Pathfinder
No full textLISA PathFinder (LPF) will be flown with the objective to test in space key technologies
for LISA. However its sensitivity goals are, for good reason, one order of magnitude less than those which LISA will have to meet, both in drag-free and optical metrology requirements, and in the observation frequency band. While the expected success of LPF will of course be of itself a major step forward to LISA, one might not forget that a further improvement by an order of
magnitude in performance will still be needed. Clues for the last leap are to be derived from proper disentanglement of the various sources of noise which contribute to the total noise, as measured in flight during the PathFinder mission. This paper describes the principles, workings and requirements of one of the key tools to serve the above objective: the diagnostics subsystem. This consists in sets of temperature, magnetic field, and particle counter sensors, together with generators of controlled thermal and magnetic perturbations. At least during the commissioning phase, the latter will be
used to identify feed-through coefficients between diagnostics sensor readings and associated actual noise contributions. A brief progress report of the current state of development of the diagnostics subsystem will be given as well.Peer Reviewe
Lisa M. Colloredo
No full textLisa M. Colloredo is the Associate Manager of the Commercial Crew Program (CCP) at NASA\u27s Kennedy Space Center in Florida. CCP is leading NASA\u27s efforts to develop the next United States capability for crew transportation and rescue services to and from the International Space Station (ISS) and other low-Earth orbit destinations. The outcome of this capability is expected to stimulate and expand the U.S. space transportation industry.
Since June 2012, Colloredo has taken on the role of associate manager to assist CCP\u27s program manager in the budgeting, contracting, safety and technical areas of the program at Kennedy.
Colloredo began her aerospace career with Lockheed Space Operations Corp. as an orbiter structures engineer and ground systems project engineer at Kennedy in 1987.
Her NASA career began in 1991 and has spanned various organizations, including the Safety and Mission Assurance Directorate, the Shuttle Processing Directorate\u27s Business Office, the Launch Vehicle Processing Directorate\u27s Project Control Office, and the Constellation Space Transportation Office. During her more than 20 years with America\u27s space program, she has supported several institutional organizations, projects and programs.
Colloredo has been honored with many NASA awards, most notably the Outstanding Leadership Medal for leadership contributions to centerwide change initiatives, an Exceptional Service Medal, and a NASA Silver Snoopy for outstanding support to the Space Shuttle Program as a technical resources manager.
Colloredo was raised in Wheeling, W.V., received a Bachelor of Science in mechanical engineering from the University of Dayton in Ohio and a Master in Business Administration from the Florida Institute of Technology in Melbourne.https://commons.erau.edu/space-congress-bios-2018/1067/thumbnail.jp
In-flight Diagnostics in LISA Pathfinder
No full textLISA PathFinder (LPF) will be flown with the objective to test in space key technologies
for LISA. However its sensitivity goals are, for good reason, one order of magnitude less than those which LISA will have to meet, both in drag-free and optical metrology requirements, and in the observation frequency band. While the expected success of LPF will of course be of itself a major step forward to LISA, one might not forget that a further improvement by an order of
magnitude in performance will still be needed. Clues for the last leap are to be derived from proper disentanglement of the various sources of noise which contribute to the total noise, as measured in flight during the PathFinder mission. This paper describes the principles, workings and requirements of one of the key tools to serve the above objective: the diagnostics subsystem. This consists in sets of temperature, magnetic field, and particle counter sensors, together with generators of controlled thermal and magnetic perturbations. At least during the commissioning phase, the latter will be
used to identify feed-through coefficients between diagnostics sensor readings and associated actual noise contributions. A brief progress report of the current state of development of the diagnostics subsystem will be given as well.Peer Reviewe
In-flight Diagnostics in LISA Pathfinder
No full textLISA PathFinder (LPF) will be flown with the objective to test in space key technologies
for LISA. However its sensitivity goals are, for good reason, one order of magnitude less than those which LISA will have to meet, both in drag-free and optical metrology requirements, and in the observation frequency band. While the expected success of LPF will of course be of itself a major step forward to LISA, one might not forget that a further improvement by an order of
magnitude in performance will still be needed. Clues for the last leap are to be derived from proper disentanglement of the various sources of noise which contribute to the total noise, as measured in flight during the PathFinder mission. This paper describes the principles, workings and requirements of one of the key tools to serve the above objective: the diagnostics subsystem. This consists in sets of temperature, magnetic field, and particle counter sensors, together with generators of controlled thermal and magnetic perturbations. At least during the commissioning phase, the latter will be
used to identify feed-through coefficients between diagnostics sensor readings and associated actual noise contributions. A brief progress report of the current state of development of the diagnostics subsystem will be given as well.Peer Reviewe
Heliospheric influences on LISA
No full textLaser interferometer space antenna (LISA) is the first interferometer devoted to the detection of low frequency gravitational waves in space. Control of the environment and the study of the effects of energetic particles traversing the LISA apparatus are mandatory for this experiment to be fully successful. Telescopes for solar and cosmic-ray particle monitoring will be placed on board LISA and its precursor mission LISA Pathfinder (LISA-PF). In particular, proton, helium and electron detection is recommended on LISA. In this paper, we report expected incident galactic proton and helium fluxes at the time of LISA and LISA-PF missions. The number of solar events with the fluence ranging between 10^(6) and 10^(11) protons cm^(-2) above 30 MeV occurring during the LISA missions is estimated as well. Finally, we discuss the importance of electron detection on LISA to forecast upcoming solar energetic protons
Heliospheric influences on LISA
No full textLaser interferometer space antenna (LISA) is the first interferometer devoted to the detection of low frequency gravitational waves in space. Control of the environment and the study of the effects of energetic particles traversing the LISA apparatus are mandatory for this experiment to be fully successful. Telescopes for solar and cosmic-ray particle monitoring will be placed on board LISA and its precursor mission LISA Pathfinder (LISA-PF). In particular, proton, helium and electron detection is recommended on LISA. In this paper, we report expected incident galactic proton and helium fluxes at the time of LISA and LISA-PF missions. The number of solar events with the fluence ranging between 10(6) and 10(11) protons cm(-2) above 30 MeV occurring during the LISA missions is estimated as well. Finally, we discuss the importance of electron detection on LISA to forecast upcoming solar energetic protons
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