4,868 research outputs found
Supporting Pre-Existing Teams in Crisis with IT: A Preliminary Organizational-Team Collaboration Framework
A number of pre-existing teams are trained to operate in crisis. These teams can be found in aviation, navy, nuclear power, offshore oil, air traffic control facilities, and trauma centers. Understanding how to support pre-existing teams like these, with IT is essential. To date, most support for these teams is automation support such as an electronic checklist for an airplane flight crew responding to an engine fire rather than collaboration support such as linking paramedics in the field to doctors in emergency rooms. While automated support is rapidly developing, very little consideration has been given to enhancing the collaboration support for teams that face crisis. With advances in network capacity and sensors, IT has enabled pre-existing teams that face crisis the opportunity to obtain collaboration support from others in the organization. Collaboration with other human experts is necessary to aid problem discovery and to consider ramifications of responses. Here we suggest a preliminary set of IT system guiding principles to support collaboration for a particular, but common type of pre-existing team that faces crisis. These principles are based on two frameworks that have been developed to mitigate the effects of crisis. One is an organizational approach called the High Reliability Organization (HRO); the other, a team approach, was developed in the aviation community known as Crew Resource Management (CRM). Here we briefly explain each approach, highlight their principles, and then suggest principles of a Collaboration Crisis IT (CCIT) system to support the collaboration needs of teams that face crisis
Alien Registration- Mckinney, Roland H. (Houlton, Aroostook County)
https://digitalmaine.com/alien_docs/34802/thumbnail.jp
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How Do Galaxies Form Their Stars Over Cosmic Time?
Galaxies in the past were forming more stars than those today, but the driving force behind this increase in activity remains uncertain. In this thesis I explore the origin of high star-formation rates today and in the past by studying the properties of gas and dust in the cold interstellar medium (ISM) of dusty galaxies over cosmic time. Critically, we do not yet understand how these galaxies could form so many stars. This work began with my discovery of unusual infrared (IR) emission line ratios in the class of dusty galaxies where most of the Universe’s stars were formed. To fully understand the source of these unusual emission line ratios, I turn to local analogs of the distant galaxies I study at high-redshift to investigate in detail the ratio of far-IR fine-structure line emission to mid-IR Polycylic Aromatic Hydrocarbons (PAHs). I find that gas within young star-forming regions heats and cools differently when it is compressed to high star-formation rate surface densities. I use radio spectroscopy of CO(1-0) and sub-millimeter dust continuum measurements to test how changes in heating and cooling impact the total gas reservoir, and find more efficient star- formation in compact galaxies at all redshifts. The high star-formation rates of distant galaxies may be sustained by this more efficient mode. With spatially resolved studies, I find the IR properties of star-forming, dusty galaxies to be comparable for fixed IR surface density at low- and high-redshift. Finally, to match the formation of stars with the synchronous growth of supermassive black holes I analyze numerical simulations of galaxy formation to study the radiative feedback of active galactic nuclei on dust. Rapidly accreting supermassive black holes can heat the dust in their host galaxies, powering a significant fraction of the cold dust luminosity and biasing IR-derived star-formation rates if left unaccounted for. With the recent launch of the James Webb Space Telescope, the future of extragalactic infrared observations is wide open and this research provides motivation for the continued study of the cold gas and dust conditions from which new stars form
MI Systems Taxonomy
Systems theory is often used in MIS research and applications. It is frequently assumed that the underlying principles of system theory are shared by both the author and audience. However, as will be presented here, multiple variants of systems theory exist, with often conflicting basic tenets which can lead authors and audiences to misunderstanding. This paper offers a taxonomy of four systems theories. Brief suggestions for applications of each are made. The limitations of systems theories are presented
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The Installation, Operation and Analysis of Eddy Covariance for Quantifying Evapotranspiration
During the contract period from January 2021 through December 31, 2023, the University of Texas at Austin, Bureau of Economic Geology (UT-BEG) installed and maintained two eddy covariance stations across the Edwards Aquifer recharge region. The Cibolo station was installed on February 25, 2021, in the more humid eastern portion of the region within an oak-ashe juniper ecosystem adjacent to Cibolo Creek at the Field Research Park (FRP) operated by the Edwards Aquifer Authority (EAA). The Uvalde station was installed on April 8, 2021, in the more arid western portion of the region within a mesquite woody savanna northwest of Uvalde, TX, near the Nueces River. The Uvalde station was demobilized on March 1, 2023, and relocated to a permanent location approximately 30 miles north, within an oak-ashe juniper woody savanna on the Shield Ranch east of Camp Wood, TX, and renamed the Nueces station. Installation of the Nueces station was completed on July 19, 2023. Site visits were performed throughout the contract period for regular maintenance, such as calibrating (i.e., zero-spanning) the infrared gas analyzer, and as-needed maintenance such as troubleshooting issues with power, communication or individual sensors. The Cibolo, Uvalde, and Nueces sites have been registered with AmeriFlux (a collaborative network of flux site across North, Central, and South America with standardized processes and procedures) with site designations of US-EA4, US-EA5, and US-EA6, respectively. Data submission to AmeriFlux for the eddy covariance sites is ongoing.Bureau of Economic Geolog
Coleman\u27s Male Choir
Coleman\u27s Male Choir, edited by Robert H. Coleman and B. B. McKinney, published by Robert H. Coleman.
Shape-note hymnal in 7 shape notation published as a male chior book for unaccompanied male voices. Includes index. Collection contains two copies, both missing title page. Copy 2 is also missing songs 1-12. Both copies signed by J.D. Huggins, Jr.https://digitalcommons.gardner-webb.edu/shape-note-collection/1015/thumbnail.jp
The School Improvement Partnership Programme: Using Collaboration and Enquiry to tackle Educational Inequity
No abstract available
Stem cells and fluid flow drive cyst formation in an invertebrate excretory organ.
Cystic kidney diseases (CKDs) affect millions of people worldwide. The defining pathological features are fluid-filled cysts developing from nephric tubules due to defective flow sensing, cell proliferation and differentiation. The underlying molecular mechanisms, however, remain poorly understood, and the derived excretory systems of established invertebrate models (Caenorhabditis elegans and Drosophila melanogaster) are unsuitable to model CKDs. Systematic structure/function comparisons revealed that the combination of ultrafiltration and flow-associated filtrate modification that is central to CKD etiology is remarkably conserved between the planarian excretory system and the vertebrate nephron. Consistently, both RNA-mediated genetic interference (RNAi) of planarian orthologues of human CKD genes and inhibition of tubule flow led to tubular cystogenesis that share many features with vertebrate CKDs, suggesting deep mechanistic conservation. Our results demonstrate a common evolutionary origin of animal excretory systems and establish planarians as a novel and experimentally accessible invertebrate model for the study of human kidney pathologies
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