8,193 research outputs found
A blast of mistakes: undiagnosed cervical ppondylolisthesis following a bomb explosion
Background: A case of spinal trauma had an unusual clinical course due to medical mistakes, from which we can learn some important lessons.
Case Report: We report a case of spondylolisthesis following a bomb explosion, which went undiagnosed for a long time because of a series of mistakes that are highlighted in this article. What makes this case unique is that the spondylolisthesis developed during hospital stay, but the patient had no loss of mobility, strength, or sensitivity.
Conclusions: This case shows that establishing the conditions of an organ or a body part upon admission to hospital may not be enough when a patient has suffered extensive and serious trauma, and that it is necessary to carry out more checkups over time, especially if there are new clues and symptoms
Development of a container for handling, testing, and storing discrete microelectronic components
A container has been developed for handling, testing, burning-in, and storing discrete microelectronic components without removal from the protective package. The package was designed to accommodate the leadless inverted device and other carrier-mounted active devices and chip-type discrete resistors and capacitors. Before the indicated development, components were handled and tested in various ways, some of which resulted in damage or contamination. The basic design of the container utilizes precision machined printed circuit boards and chemically milled (photoetched) contact springs. Included in this design for protection is an O-ring-sealed cover. Methods of fabrication and limitations of the current hardware are presented. Current applications of and possible extensions to the technology are discussed
Toward the valorization of olive (Olea europaea var. europaea L.) biodiversity: horticultural performance of seven Sicilian cultivars in a hedgerow planting system
An intense survey of the Sicilian's olive growing areas for autochthonous germplasm, mainly represented by centennials olive trees (Olea europaea var. europaea L.) apparently older then III centuries, started at the beginning of the 1980s and resulted in the selection of more than 150 cultivars and accessions. This germplasm was propagated in a nursery, by grafting onto seedlings of Olea europaea L., and planted in an experimental orchard, in an olive district located in the South-west of the Island, where they were evaluated for over 30 years and selected for their early bearing, high and constant productivity, as well as high oil content of the fruits and excellent chemical (oleic acid and phenol content) and organoleptic profile of the oil. This paper reports data on the horticultural performances (production, vigor, crop efficiency and oil quality) of four cultivars (\u2018Kalat\u2019, \u2018Olivo di Mandanici\u2019, \u2018Abunara\u2019 and \u2018Minuta\u2019), selected within the Sicilian's autochthonous germplasm trained as 'Free Palmetta' and tested in a hedgerow planting system at three different planting densities: 500, 666 and 1000 trees ha-1. The cultivar \u2018Nocellara del Belice\u2019, \u2018Cerasuola, and \u2018Biancolilla\u2019, widely cultivated in the area where the trial was carried out, were used as references. The outstanding performance of the cultivar \u2018Kalat\u2019 at planting density of 1000 trees ha 121, suggests that this cultivar can be a promising choice for the super high density orchards (SHD). The other cultivars tested did not performed as \u2018Kalat\u2019 and seem not suitable for SHD planting system due to their high vigor. The hedgerow planting system tested, in the first 6 years of planting, increaseed productivity of all cultivars compared to traditional olive orchard typical of the area where the trial was conducted. This hedgerow olive orchard may represent a valid solution to increase orchard productivity and to reduce harvest costs by mechanization, depending on tree high, with straddle or side by side canopy contact machines. Achieve higher yield and reducing management costs using autochthonous, resilient cultivars, could be a new strategy to counteract climate changes. The unique organoleptic profiles of the oils obtained from the cultivars tested, could improve the offer of tasty, flavored and nutraceutical extra virgin olive oils in the international markets. Results highlight the importance of preserving and valorizing biodiversity to increase productivity and resiliency of agricultural systems, facing continuous, fast and deep social and environmental changes
A novel DR/NIR T-shaped aiegen: Synthesis and x-ray crystal structure study
We developed a new benzodifuran derivative as the condensation product between 2,6-diamino-4-(4-nitrophenyl)benzo[1,2-b:4,5-b’]difuran-3,7-dicarboxylate and 3-hydroxy-2-naphthaldehyde. The intramolecular hydrogen-bond interactions in the terminal half-salen moieties produce a sterically encumbered highly conjugated main plane and a D-A-D (donor-acceptor-donor) T-shaped structure. The novel AIEgen (aggregation-induced enhanced emission generator) fulfils the requirement of RIR (restriction of intramolecular rotation) molecules. DR/NIR (deep red/near infrared) emission was recorded in solution and in the solid state, with a noteworthy photoluminescence quantum yield recorded on the neat crystals which undergo some mechanochromism. The crystal structure study of the probe from data collected at a synchrotron X-ray source shows a main aromatic plane π-stacked in a columnar arrangement
Outsourcing Information Technology and the Insider Threat
As one of our nation\u27s top critical infrastructures, telecommunications is an essential element of many aspects of our lives upon which we, as a society, are becoming increasingly dependent. Computers, digital telephone switches, and interconnected information technology (IT) systems impact finances, travel, infrastructure management, and missions of national defense. This research examined whether the trend in increased outsourcing of information technology systems is a significant contributing factor to a reportedly increasing amount of insider attacks. In light of changing social, global economic, and technological conditions, the paradigm in which risk analysis, management practices, and operational and personnel security practices are applied to protect information has shifted over the last decade. A comprehensive model of the discursive nature of the insider threat in the outsourced IT environment was developed using a qualitative grounded theory approach put forth by Glaser and Strauss in 1967. The theory generated by this research suggests a multidimensional real and growing threat resulting from outsourced IT as well as preconditions for continued future growth of the insider threat phenomenon
Visual Harmony in Relation to Camp Santanoni: User\u27s Perceptions and Interpretations of Visual Harmony Between Historic Rustic Architectural Design and the Natural Environment Based on Recommendations Made by Downing, Olmsted and Wicks
The purpose of this study is to understand how users of Camp Santanoni perceive and interpret the visual harmony between historic rustic architectural design and the natural environment and if these meanings are congruent with the design recommendations from Downing, Olmsted, and Wicks. The main goal is to understand the congruent relationships between how a designer wished to achieve visual harmony between buildings and landscapes, and how people actually perceive this interaction. The meaningful relationships between users (the people) of Camp Santanoni’s buildings and the surrounding landscape (the place) were documented
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