The Experts below are selected from a list of 300 Experts worldwide ranked by ideXlab platform
Michelle A. Cretikos - One of the best experts on this subject based on the ideXlab platform.
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Respiratory rate: the neglected vital sign.
Age and ageing, 2014Co-Authors: M. Odell, I. J. Rechner, A. Kapila, T. Even, C. W H Davies, L. Milsom, K. Rudman, A. Förster, D. Oliver, Michelle A. CretikosAbstract:OBJECTIVE: While much attention is given to the fifth vital sign, the utility of the 4 classic vital signs (blood pressure, respiratory rate, body temperature, and heart rate) has been neglected. The aim of this study was to assess a possible association between vital signs and the Sequential Organ Failure Assessment (SOFA) score in patients with sepsis. METHODS: We performed a prospective, observational study of 206 patients with sepsis. Blood pressure, respiratory rate, body temperature, and heart rate were measured on arrival at the hospital. The SOFA score was also determined on the day of admission. RESULTS: Bivariate correlation analysis showed that all of the vital signs were correlated with the SOFA score. Multiple regression analysis indicated that decreased values of systolic blood pressure (multivariate regression coefficient [Coef] = -0.030, 95% confidence interval [CI] = -0.046 to -0.013) and diastolic blood pressure (Coef = -0.045, 95% CI = -0.070 to -0.019), increased respiratory rate (Coef = 0.176, 95% CI = 0.112 to 0.240), and increased shock index (Coef = 4.232, 95% CI = 2.401 to 6.062) significantly influenced the SOFA score. CONCLUSION: Increased respiratory rate and shock index were significantly correlated with disease severity in patients with sepsis. Evaluation of these signs may therefore improve early identification of severely ill patients at triage, allowing more aggressive and timely interventions to improve the prognosis of these patients.
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Respiratory rate: The neglected vital sign
Medical Journal of Australia, 2008Co-Authors: Michelle A. Cretikos, Simon Finfer, Ken Hillman, Jack Chen, Rinaldo Bellomo, Arthas FlabourisAbstract:The level of documentation of vital signs in many hospitals is extremely poor, and respiratory rate, in particular, is often not recorded. There is substantial evidence that an abnormal respiratory rate is a predictor of potentially serious clinical events. Nurses and doctors need to be more aware of the importance of an abnormal respiratory rate as a marker of serious illness. Hospital systems that encourage appropriate responses to an elevated respiratory rate and other abnormal vital signs can be rapidly implemented. Such systems help to raise and sustain awareness of the importance of vital signs.
Paul Abraham - One of the best experts on this subject based on the ideXlab platform.
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Generalizations of the Nikodym boundedness and Vitali–Hahn–Saks theorems
Journal of Mathematical Analysis and Applications, 2004Co-Authors: Christopher E Stuart, Paul AbrahamAbstract:Abstract Generalizations of the Nikodym boundedness and Vitali–Hahn–Saks theorems for scalar-valued measures on rings of sets that are in general not σ-rings are presented. As a consequence, the rings of subsets of N with density zero and uniform density zero are shown to have the Nikodym property. In addition, vector measure generalizations of the Vitali–Hahn–Saks theorem are given.
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generalizations of the nikodym boundedness and Vitali hahn saks theorems
Journal of Mathematical Analysis and Applications, 2004Co-Authors: Christopher E Stuart, Paul AbrahamAbstract:Abstract Generalizations of the Nikodym boundedness and Vitali–Hahn–Saks theorems for scalar-valued measures on rings of sets that are in general not σ-rings are presented. As a consequence, the rings of subsets of N with density zero and uniform density zero are shown to have the Nikodym property. In addition, vector measure generalizations of the Vitali–Hahn–Saks theorem are given.
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on the Vitali hahn saks nikodym theorem
Quaestiones Mathematicae, 1996Co-Authors: Paul AbrahamAbstract:Abstract The classical Vitali-Hahn-Saks-Nikodym Theorem [5, Thm. I.4.8] gives a limit criterion for when a sequence of strongly additive vector measures on a σ-field of sets having their range in a Banach space can be expected to be uniformly strongly additive. In [16, Cor. 8], Saeki proved that the limit condition on the sequence of vector measures could be substantially weakened as long as the Banach space in play is “good enough”. Saeki's result was based upon his work on a class of set functions too large to have Rosenthal's Lemma at his disposal. In Section 2, we prove Saeki's result with Rosenthal's Lemma at the basis of our work and then augment our characterization of Banach spaces enjoying Saeki's result in [1] with another natural equivalent condition. In Section 3 we extend Saeki's result to Boolean algebras having the Subsequential Interpolation property.
Flavia Ventriglia - One of the best experts on this subject based on the ideXlab platform.
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Representations of pseudo Vitali spaces and Loomis–Sikorski theorem
International Journal of General Systems, 2020Co-Authors: Anatolij Dvurecenskij, Flavia VentrigliaAbstract:We present pseudo Vitali spaces as lattices with a partially defined operation, +, that is not necessarily commutative. We show that they can be embedded into l-groups, and we give a categorical equivalence of the category of pseudo Vitali spaces. Studying states on Vitali spaces with strong unit, we show that every Dedekind σ-complete Vitali space is an epimorphic image of a Vitali space of bounded functions where the operations on functions are defined pointwise.
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representations of pseudo Vitali spaces and loomis sikorski theorem
International Journal of General Systems, 2011Co-Authors: Anatolij Dvurecenskij, Flavia VentrigliaAbstract:We present pseudo Vitali spaces as lattices with a partially defined operation, +, that is not necessarily commutative. We show that they can be embedded into l-groups, and we give a categorical equivalence of the category of pseudo Vitali spaces. Studying states on Vitali spaces with strong unit, we show that every Dedekind σ-complete Vitali space is an epimorphic image of a Vitali space of bounded functions where the operations on functions are defined pointwise.
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asymptotically exhaustive functions in Vitali spaces
Rendiconti Del Circolo Matematico Di Palermo, 2008Co-Authors: Flavia VentrigliaAbstract:We introduce asymptotically exhaustive functions defined on Vitali Spaces with values in a Hausdorff commutative topological group and we prove for them some classical convergence theorems.
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cafiero and brooks jewett theorems for Vitali spaces
Ricerche Di Matematica, 2007Co-Authors: Flavia VentrigliaAbstract:We introduce a common generalization of Boolean rings and lattice ordered groups called Vitali spaces and we give a version of Cafiero and Brooks–Jewett convergence Theorems for additive functions defined in a Vitali space with values in a Hausdorff commutative topological group.
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Cafiero and Brooks–Jewett theorems for Vitali spaces
Ricerche Di Matematica, 2007Co-Authors: Flavia VentrigliaAbstract:We introduce a common generalization of Boolean rings and lattice ordered groups called Vitali spaces and we give a version of Cafiero and Brooks–Jewett convergence Theorems for additive functions defined in a Vitali space with values in a Hausdorff commutative topological group.
Christopher S Von Bartheld - One of the best experts on this subject based on the ideXlab platform.
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giovanni Vitali discoverer of the paratympanic organ
Annals of Anatomy-anatomischer Anzeiger, 2013Co-Authors: Francesco Giannessi, Riccardo Ruffoli, Christopher S Von BartheldAbstract:Abstract One-hundred years ago, the Italian anatomist Giovanni Vitali reported the discovery of the paratympanic organ, a sense organ in the middle ear of birds, in two issues of the Anatomischer Anzeiger (1911, 1912). In this minireview, we summarize Vitali's biography, and examine the scientific impact of his discovery of this sense organ. We also compile – for the first time – the entire bibliography of published papers on the paratympanic organ. Vitali described the ontogenetic development of this sense organ, examined its distribution among species, recognized its evolutionary relationship with the spiracular sense organ of fishes, and he developed the theory that it functions as a detector of changes in air pressure. He was the first to postulate that the paratympanic and spiracular sense organs were homologous organs that originate from homologous placodes – currently a hotly debated topic. His morphological work indicating the sensory nature of the PTO was validated by subsequent ultrastructural studies. Vitali's discovery of the paratympanic organ prompted his nomination for the Nobel Prize in 1934. Nevertheless, the paratympanic organ and the presumed barometric sense of hundreds of billions of living birds have failed to receive the recognition they deserve. Conclusive evidence of the function of the paratympanic organ remains a formidable challenge in vertebrate sensory physiology.
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development and innervation of the paratympanic organ Vitali organ in chick embryos
Brain Behavior and Evolution, 1990Co-Authors: Christopher S Von BartheldAbstract:The paratympanic organ (Vitali organ) is a small sensory organ in the middle ear of birds. It possesses a sensory epithelium with hair cells similar to those of the inner ear. Injection of fluorescent
Arthas Flabouris - One of the best experts on this subject based on the ideXlab platform.
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Respiratory rate: The neglected vital sign
Medical Journal of Australia, 2008Co-Authors: Michelle A. Cretikos, Simon Finfer, Ken Hillman, Jack Chen, Rinaldo Bellomo, Arthas FlabourisAbstract:The level of documentation of vital signs in many hospitals is extremely poor, and respiratory rate, in particular, is often not recorded. There is substantial evidence that an abnormal respiratory rate is a predictor of potentially serious clinical events. Nurses and doctors need to be more aware of the importance of an abnormal respiratory rate as a marker of serious illness. Hospital systems that encourage appropriate responses to an elevated respiratory rate and other abnormal vital signs can be rapidly implemented. Such systems help to raise and sustain awareness of the importance of vital signs.
