Childhood Obesity in America: What Role Does the Food Industry Play?

The objective of this research is to determine the impact of the food industry on childhood obesity. Childhood obesity is a growing health problem in the U.S that must be addressed properly and reduced effectively. To help fight the growing battle of childhood obesity, the food industry (and media) must work with the government to help the consumer make healthy food choices by enhancing consumer knowledge through nutritional education, promoting nutritional awareness, providing clear nutritional facts, developing and improving healthier product choices, and providing more controlled portion sizes. Presenting consumers with these things will hopefully motivate them to make a better lifestyle change and potentially control our struggle with childhood obesity.Ope

The Science Performance of JWST as Characterized in Commissioning

This paper characterizes the actual science performance of the James Webb Space Telescope (JWST), as determined from the six month commissioning period. We summarize the performance of the spacecraft, telescope, science instruments, and ground system, with an emphasis on differences from pre-launch expectations. Commissioning has made clear that JWST is fully capable of achieving the discoveries for which it was built. Moreover, almost across the board, the science performance of JWST is better than expected; in most cases, JWST will go deeper faster than expected. The telescope and instrument suite have demonstrated the sensitivity, stability, image quality, and spectral range that are necessary to transform our understanding of the cosmos through observations spanning from near-earth asteroids to the most distant galaxies.Comment: 5th version as accepted to PASP; 31 pages, 18 figures; https://iopscience.iop.org/article/10.1088/1538-3873/acb29

The Science Performance of JWST as Characterized in Commissioning

This paper characterizes the actual science performance of the James Webb Space Telescope (JWST), as determined from the six month commissioning period. We summarize the performance of the spacecraft, telescope, science instruments, and ground system, with an emphasis on differences from pre-launch expectations. Commissioning has made clear that JWST is fully capable of achieving the discoveries for which it was built. Moreover, almost across the board, the science performance of JWST is better than expected; in most cases, JWST will go deeper faster than expected. The telescope and instrument suite have demonstrated the sensitivity, stability, image quality, and spectral range that are necessary to transform our understanding of the cosmos through observations spanning from near-earth asteroids to the most distant galaxies

The James Webb Space Telescope Mission

Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least $4m$. With the support of their governments in the US, Europe, and Canada, 20,000 people realized that vision as the $6.5m$ James Webb Space Telescope. A generation of astronomers will celebrate their accomplishments for the life of the mission, potentially as long as 20 years, and beyond. This report and the scientific discoveries that follow are extended thank-you notes to the 20,000 team members. The telescope is working perfectly, with much better image quality than expected. In this and accompanying papers, we give a brief history, describe the observatory, outline its objectives and current observing program, and discuss the inventions and people who made it possible. We cite detailed reports on the design and the measured performance on orbit.Comment: Accepted by PASP for the special issue on The James Webb Space Telescope Overview, 29 pages, 4 figure

The Next Disaster… Will Be Televised: An Exploratory Qualitative Media Analysis of Hurricane Preparedness in Television Newscasts

Major hurricane landfalls are the most dangerous natural hazard threats experienced in the U.S. Television news is a primary sources of hurricane hazard information and has the ability to influence what viewers understand about and how they respond to these events. While it is understood that media plays a central role in communicating weather, it is unknown whether or not news media content communicates the recommended hurricane hazard adjustments that are needed for preparedness and protection. Thus this study supports prior research calling for a closer examination of the role and effects of visual information in media documents. Using the 2005 Atlantic hurricane season, the present research employs qualitative media analysis to explore the framing of hurricane preparedness through television newscasts covering Hurricane Katrina from August 23-29, 2005. Key findings from this study suggest that there are five common frames through which hurricane information is presented to viewers of the national news broadcasts surveyed in this study. Preparedness information was found to be mainly represented through visual content but sparsely mentioned in reporting. The study also found that more often visuals were used to aid story development instead of provide educational or instructional messages that model the adoption of hazard adjustments and have the potential to motivate protective actions and behaviors by helping to increase self-efficacy. The present study concludes by discussing underlying aspects of conflict present within the media frames and offering recommendations for better integration of media content into risk communication campaigns for severe weather

Terrestrial ages of meteorites from the Nullarbor region, Australia, based on 14C and 14C-10Be measurements

We have investigated the terrestrial ages, or residence times, of 78 meteorites (representing 73 discrete falls recovered in Western Australia, and one from South Australia, using both 14C measurements and also 14C⁄ 10Be. The samples studied included two ureilites, one CK and one EL chondrite. We have included 10Be measurements from 30 meteorites, including some meteorites for which the 14C terrestrial age was previously determined. We find that the 14C⁄ 10Be terrestrial ages are more precise than 14C alone, as we can correct for shielding effects. In general, the two different age determinations age by 14C–10Be are precise to 0.5–1 ka and 14C alone within 1–2 ka. However, measurement of the 14C age alone gives good agreement with the 14C–10Be for most samples. The study of the terrestrial ages of meteorites gives us useful information concerning the storage and weathering of meteorites and the study of fall times and terrestrial age. We have compared the terrestrial ages to weathering, degree of oxidation (estimated from Mossbauer studies)and D17O. In this study, we found that weathering is not well correlated with terrestrial age for Nullarbor meteorites. However, there is a good correlation between degree of oxidation and D17O. The implications for the study of terrestrial ages and weathering from other desert environments will be discussed