Coal Conversion Technology

Energy consumption is rapidly increasing throughout the world and the United States is no exception. Efforts to reduce the dependence on oil imports have focused on utilization of our coal resources. This paper examines various coal conversion processes and presents a method for evaluating their contribution to energy production

Fabrication of wide-IF 200–300 GHz superconductor–insulator–superconductor mixers with suspended metal beam leads formed on silicon-on-insulator

We report on a fabrication process that uses SOI substrates and micromachining techniques to form wide-IF SIS mixer devices that have suspended metal beam leads for rf grounding. The mixers are formed on thin 25 µm membranes of Si, and are designed to operate in the 200–300 GHz band. Potential applications are in tropospheric chemistry, where increased sensitivity detectors and wide-IF bandwidth receivers are desired. They will also be useful in astrophysics to monitor absorption lines for CO at 230 GHz to study distant, highly redshifted galaxies by reducing scan times. Aside from a description of the fabrication process, electrical measurements of these Nb/Al–AlNx/Nb trilayer devices will also be presented. Since device quality is sensitive to thermal excursions, the new beam lead process appears to be compatible with conventional SIS device fabrication technology

Parenting during a Pandemic: Mothers and Disabled Children in Aotearoa/New Zealand—A Hidden Minority

Every country has its own COVID-19 pandemic story; similarly, every family has their own experiences of lockdowns, isolation, illness, death, struggles, and resiliency related to the pandemic. Although myriad narratives appear about these familial and societal experiences, few explore those of mothers of disabled children; these have been largely invisible, and as a result, this minority group and their needs have failed to be addressed by those who make decisions and plan for public health crises and for the subsequent recovery. Autoethnography, a qualitative method that coalesces personal experience and research literature to advance sociological understanding, underpins this exploration. The authors are New Zealand/Aotearoa mothers of disabled children. Our approach employs autoethnographic reflection about our pandemic experiences to create mean-ing, forge identities, and explore power structures. Connections of our family stories enable the creation of an understanding of what has happened in our communities. The authors’ reflections on their pandemic experiences are woven together with stories of how governments, schools, public health organizations, disability organizations, healthcare providers and communities directed us and responded to or failed to address our needs. We have identified five interwoven themes throughout our stories: anxiety, invisibility, devalued lives, coping, and advocacy. Together, as an outcome of the autoethnographic study of our pandemic experiences, we offer ideas for survival to pass on to mothers for future disasters and crises. Furthermore, we have developed recommendations for organizations and others living with disability

Letters to the Editor

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/65933/1/j.1528-1157.1995.tb00479.x.pd

Correlation of Paraspinal Atrophy and Denervation in Back Pain and Spinal Stenosis Relative to Asymptomatic Controls

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/146797/1/pmr239.pd

Impairments in orienting to visual stimuli in monkeys following unilateral lesions of the superior sulcal polysensory cortex

Monkeys were tested for head and eye orientation to illuminated lamps in a hemisphere before and after serial, unilateral lesions of the polysensory superior temporal cortex (STS) or control lesions. Following STS lesions they were impaired in orienting to contralateral lamps; this impairment was more severe and persistent when a ipsilateral stimulus in the mirror-image position was simultaneously presented. These findings, together with deficits in manual reaching and grasping observed following STS lesions, support the view that the STS is part of a polysensory system controlling attention and exploratory movements.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/26421/1/0000508.pd