1,425 research outputs found
Family factors associated with anxiety sensitivity in youth
The purpose of this study was to examine the relationship between various family variables and anxiety sensitivity (AS) in a community sample of 159 youth ages 7--18 years and their parents. Youth completed self-report measures of anxiety and AS and parents completed measures of AS, attachment, psychopathology, family environment, and parenting practices. The primary purpose was to examine the extent to which these family variables predicted child AS. Results indicated that a combination of family factors including parenting style, parental psychopathology, and family environment significantly predicted child AS. Specifically, parent\u27s perceptions of their child\u27s anxiety sensitivity and a secure attachment contributed the most to the prediction equation. These results are discussed in the context of their implications for both assessment and treatment of youth with AS
Youth at risk for anxiety: Evaluation of a brief panic prevention program
This was the first pilot study to examine the effectiveness of a single-session panic prevention workshop for youth. Participants were recruited using various forms of mass media, advertisements, flyer distribution, and personal contacts. Following a brief screening, participants were assigned to a single-session panic prevention workshop (n = 9) or a waitlist control condition (n = 10). Youth in the workshop group completed pre-workshop assessments including self-report measures of anxiety sensitivity, general anxiety, panic attack symptomatology, and depression. In addition, a semi-structured diagnostic interview was used to assess panic attacks, panic disorder, and agoraphobia Also, during pre-workshop assessment, parents completed measures of anxiety sensitivity, psychopathology, and depression. Following assessment, child-parent dyads participated in the panic prevention workshop. The workshop consisted of approximately five hours of psychoeducation, breathing retraining, cognitive restructuring, and interoceptive exposure. Three months following the workshop, youth completed measures of anxiety sensitivity, general anxiety, and panic attack symptomatology. Youth in the waitlist control group completed measures of anxiety sensitivity, general anxiety, and panic attack symptomatology upon enrollment in the study. Waitlist participants were contacted three months following initial assessment and completed the same measures. Compared to youth in the waitlist group, youth who participated in the prevention workshop were expected to evince greater reductions in anxiety sensitivity, general anxiety, and panic attack symptomatology by three-month follow-up. Youth in the waitlist group were expected to remain the same or worsen with respect to these measures. Overall, workshop participants did not experience a significant reduction in anxiety-related symptomatology. However, trends for the workshop group to report less anxiety sensitivity, clinically significant anxiety, and panic following the workshop were found. Definitive conclusions regarding workshop effectiveness and feasibility cannot be made given methodological and statistical limitations. However, lessons learned from the present study will serve as a foundation for improving the design and execution of future efforts to provide anxiety prevention for youth
Primary resource material online: research and teaching perspective
Digital imaging projects of the G.W. Blunt White Library at Mystic Seaport Museum, funded by the Library of Congress and the Andrew W. Mellon Foundation, are explained and demonstrated with comments on how the Library has incorporated the projectsâ outcomes into its workflow. Upon reapplying for additional funds, the Library was asked by the Andrew W. Mellon Foundation to instead reach out to scholars in the field and determine what their actually needs were in developing new scholarship. The Library hosted a conference and developed a survey to measure the scholarsâ needs. Methodology and preliminary results are discussed
Effects of Varying Doses of Caffeine on Peak Torque in the Knee Extensors and Knee Flexors
Health, Physical Education and Recreatio
High Surface Area Oxidation â Development of an Improved Open Cup ARC Vessel and Validation
PresentationEasily oxidized, low volatility organic liquids absorbed/dispersed on inorganic solid materials such as insulation, absorbents, and molecular sieves can result in spontaneous ignition incidents. This is due to increased rates of oxidation of the organic when it is spread out over the very high surface area inherent in these types of solid materials. Similarly, high surface area organic solids that are either self-reactive or oxidizable may self-heat when accumulated in a pile of sufficient size, resulting in thermal runaways, gas generation, and/or fire. Understanding and quantifying this behavior is critical to identifying hazards and developing appropriate mitigative measures. Previously, an Open Cup Accelerating Rate Calorimeter technique was developed at Dow using an open, stainless steel container, purged with air heated to testing temperatures to maintain adiabaticity. This method has been used for many years to understand the reaction kinetics of âauto-oxidationâ reactions and high surface area runaway reactions. While the method has been shown to be reliable and able to accurately predict large scale hazards, the exposure of the gaseous decomposition and oxidation products of the reactions is destructive to the ARC calorimeter. The open-cup system vents directly into the ARC, resulting in accelerated corrosion or potentially exposing the internals to fire. A new ARC container design has been developed that has been demonstrated to produce comparable results and removes the concerns associated with damaging the equipment. The new design of the Open Cup ARC test cell, validation, and discussion of the data application will be included in this article
Digital library economics : aspects and prospects
A review of the issues surrounding the economics of and economic justification for, digital libraries
Sustainable Tourism Development in Rote Ndao
Located in the eastern province of Nusa Tenggara Timur (West Timor), Rote Ndao is an island of 120,000 residents that can be accessed via ferry from the West Timorese capital of Kupang. Prior to East Timorese independence in 2002, Kupung saw direct international flights from Australia, since redirected through Bali and Jakarta. Rote Ndao is traditionally focused on subsistence farming and the harvesting of the Lontar Palm; however, recent years have seen an influx of foreign interest as domestic and international investors buy up large tracks of beach front property. White sand beaches and world class surfing, Rote is a quintessential island paradise and many are predicting that this remote part of eastern Indonesia will become the new Bali of the 21st century
A New Calculation of Ne IX Line Diagnostics
We describe the effect that new atomic calculations, including
fully-relativistic R-matrix calculations of collisional excitation rates and
level-specific dielectronic and radiative recombination rates, have on line
ratios from the astrophysically significant ion Ne IX. The new excitation rates
systematically change some predicted Ne IX line ratios by 25% at temperatures
at or below the temperature of maximum emissivity (4x10^6 K), while the new
recombination rates lead to systematic changes at higher temperatures. The new
line ratios are shown to agree with observations of Capella and sigma^2 CrB
significantly better than older line ratios, showing that 25-30% accuracy in
atomic rates is inadequate for high-resolution X-ray observations from existing
spectrometers.Comment: 5 pages, 6 figure
A Spectroscopic Study of Type Ibc Supernova Host Galaxies from Untargeted Surveys
We present the largest spectroscopic study of the host environments of Type
Ibc supernovae (SN Ibc) discovered exclusively by untargeted SN searches. Past
studies of SN Ibc host environments have been biased towards high-mass,
high-metallicity galaxies by focusing on SNe discovered in galaxy-targeted SN
searches. Our new observations more than double the total number of
spectroscopic stellar population age and metallicity measurements published for
untargeted SN Ibc host environments, and extend to a median redshift about
twice as large as previous statistical studies (z = 0.04). For the 12 SNe Ib
and 21 SNe Ic in our metallicity sample, we find median metallicities of
log(O/H)+12 = 8.48 and 8.61, respectively, but determine that the discrepancy
in the full distribution of metallicities is not statistically significant.
This median difference would correspond to only a small difference in the mass
loss via metal-line driven winds (<30%), suggesting this does not play the
dominant role in distinguishing SN Ib and Ic progenitors. However, the median
metallicity of the 7 broad-lined SN Ic (SN Ic-BL) in our sample is
significantly lower, log(O/H)+12 = 8.34. The age of the young stellar
population of SN Ic-BL host environments also seems to be lower than for SN Ib
and Ic, but our age sample is small. A synthesis of SN Ibc host environment
spectroscopy to date does not reveal a significant difference in SN Ib and Ic
metallicities, but reinforces the significance of the lower metallicities for
SN Ic-BL. This combined sample demonstrates that galaxy-targeted SN searches
introduce a significant bias for studies seeking to infer the metallicity
distribution of SN progenitors, and we identify and discuss other systematic
effects that play smaller roles. We discuss the path forward for making
progress on SN Ibc progenitor studies in the LSST era.Comment: 27 pages, 12 Figures, V2 as accepted by ApJ, more information at
http://www.cfa.harvard.edu/~nsanders/papers/Ibchosts/summary.htm
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