An ounce of prevention : helping the elderly with daily money management

In 1991, 30 Massachusetts nonprofits approached AARP and the Office of Elder Affairs about providing money-management assistance to seniors. The resulting program helps roughly 1,200 clients per month to handle their finances with less anxiety.Finance, Personal - Massachusetts ; Older people - Finance, Personal

Cooling device featuring thermoelectric and diamond materials for temperature control of heat-dissipating devices

A cooling device for lowering the temperature of a heat-dissipating device. The cooling device includes a heat-conducting substrate (composed, e.g., of diamond or another high thermal conductivity material) disposed in thermal contact with the heat-dissipating device. During operation, heat flows from the heat-dissipating device into the heat-conducting substrate, where it is spread out over a relatively large area. A thermoelectric cooling material (e.g., a Bi.sub.2 Te.sub.3 -based film or other thermoelectric material) is placed in thermal contact with the heat-conducting substrate. Application of electrical power to the thermoelectric material drives the thermoelectric material to pump heat into a second heat-conducting substrate which, in turn, is attached to a heat sink

Cryogenic Thermal Distortion Performance Characterization for the JWST ISIM Structure

The James Webb Space Telescope (JWST) Integrated Science Instrument Module (ISIM) Structure is a precision optical metering structure for the JWST science instruments. Optomechanical performance requirements place stringent limits on the allowable thermal distortion of the metering structure between ambient and cryogenic operating temperature (~35 K). This paper focuses on thermal distortion testing and successful verification of performance requirements for the flight ISIM Structure. The ISIM Structure Cryoset Test was completed in Spring 2010 at NASA Goddard Space Flight Center in the Space Environment Simulator Chamber. During the test, the ISIM Structure was thermal cycled twice between ambient and cryogenic (~35 K) temperatures. Photogrammetry was used to measure the Structure in the ambient and cryogenic states for each cycle to assess both cooldown thermal distortion and repeatability. This paper will provide details on the post-processing of the metrology datasets completed to compare measurements with performance requirements

Flint, Michigan Water Crisis

The environmental justice artifact is about the environmental injustices created in different kinds of communities across the country and across the world. Flint, Michigan is one of the most well known instances of an economic crisis becoming an environmental crisis. Flint is nicknamed, “Vehicle City,” as it is one of the biggest car factory hubs in the country, but manufacturing jobs slowly faded away, leading to a collapsing economy. The municipal government decided to attempt to combat the problem by switching its water supplier to Flint River, which was contaminated with high levels of lead, a dangerous element. The next example relates to the artifact on class as well as the topic of race. Black and brown communities are often targeted for industry, and that applied to the city of Saint James Parish, Louisiana. There was a promise for industries to bring many jobs to the community, but that promise hasn’t quite been fulfilled. Additionally, due to industry, St James and its neighboring towns have some of the highest cancer rates in the country. What makes it worse is that the families who live there generally have lived there all their lives and have trouble relocating due to financial challenges

Integral Flexure Mounts for Metal Mirrors for Cryogenic Use

Semi-kinematic, six-degree-of-freedom flexure mounts have been incorporated as integral parts of metal mirrors designed to be used under cryogenic conditions as parts of an astronomical instrument. The design of the mirrors and their integral flexure mounts can also be adapted to other instruments and other operating temperatures. In comparison with prior kinematic cryogenic mirror mounts, the present mounts are more compact and can be fabricated easily using Ram-EDM (electrical discharge machining) proces

Optical Design and Status of the Large Ultra-Violet Optical Infrared Surveyor (LUVOIR)

"In preparation for the Astrophysics 2020 Decadal Survey NASA's Goddard Space Flight Center is studying a segmented aperture telescope with broad astrophysics, solar system, and exoplanet science capability called the Large Ultra-Violet Optical Infrared Surveyor (LUVOIR). This telescope design incorporates many heritage design concepts from the Hubble Space Telescope (HST), James Webb Space Telescope (JWST), and the Wide-field Infrared Survey Telescope (WFIRST). This includes similar ultraviolet instrumentation from HST, deployable segmented optics from JWST, and high-contrast coronagraph technology from WFIRST. Several optical design trades were completed to maximize the science product while maintaining reasonable packaging and fabrication constraints. Other technology developments such as freeform optics, UV enhanced coatings, coronagraph design, and ultra-stable mirrors are being studied to further improve the observatory performance

In utero and in vitro sex ratio of bovine embryos and calves originating from the left and right ovaries

An asymmetric distribution of the sexes within the left and right uterine horns has been described in multiple polytocous, laboratory species. A series of experiments were conducted to evaluate the sex ratio (% male) of calves gestated in the left and right uterine horns, as well as the sex ratio of embryos originating from the left and right ovaries of cattle. In Experiment 1, the sex ratio of calves and fetuses gestated in the left and right uterine horns was investigated. The sex ratio of calves and fetuses gestated in the right uterine horn was significantly higher compared with the sex ratio of calves and fetuses gestated in the left uterine horn. In addition, the sex ratio of the left and right uterine horns differed significantly from parity. In Experiment 2, embryo transfer data were analyzed in an effort to determine if sex-specific selection pressures were applied to embryos in the uterine horn of transfer. The sex ratio of ET calves born following transfer to the left and right uterine horns was not significantly different. Similarly, the overall sex ratio of calves born in this experiment did not differ significantly from parity. The sex ratio of embryos recovered from the left and right uterine horns of superovulated beef cows was evaluated in Experiment 3. The proportion of male embryos collected from the right uterine horns was significantly greater than from the left uterine horns. The sex ratio of embryos recovered from the uterine horns in this experiment was not different from parity. In an effort to determine the role of interovarian communications in the sex selection process, the sex ratio of embryos recovered from unilaterally ovariectomized superovulated beef heifers was investigated in Experiment 4. The sex ratios of embryos recovered from left- and right-ovary intact heifers were not significantly different. In Experiment 5, the sex ratio of IVP embryos was evaluated. The sex ratio of the IVP embryos was significantly lower than parity and was not different between ovary of origin. In addition, length of time in maturation was determined not to influence the sex ratio