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Digitale Medien

A field trial using Artificial Neural Networks to predict psychiatric in-patient Length-of-stay (1997)

Lowell, Walter ; Davis, George ; Lajousky, William ; [weitere]

Springer

Neural computing & applications 5 (1997), S. 184-193

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ISSN: 1433-3058

Schlagwort(e): Neural networks ; Length-of-stay ; Psychiatry ; Resource utilization ; Back propagation ; Field study

Quelle: Springer Online Journal Archives 1860-2000

Thema: Informatik , Mathematik

Notizen: Abstract Demands for health care reform will increase service utilization, much of which will fall on a system of expanded primary care providers, many of whom will not be specialists in psychiatry. These providers will need tools to augment their decision-making process. In this paper, we explore the use of Artificial Neural Networks (ANNs) in three different field sites to predict inpatient psychiatric Length-Of-Stay (LOS). This study describes the development and implementation of a runtime system in three different psychiatric facilities. Data was collected at these respective sites using the runtime system, and then this data was used to retrain the networks to determine if site-specific data would improve accuracy of prediction of LOS. The results indicate that ANNs trained with state hospital data could accurately predict LOS in two different community hospital psychiatric units. When the respective ANNs were retrained with approximately 10% new data from these specific hospitals, rates of improvement ranged from 3% to 15%. Our findings demonstrate that an ANN can adapt to different treatment settings and, when retrained, significantly improve prediction of LOS. Prediction rates by the ANN after retraining are comparable to results of a clinical team.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01413862

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Nutrient retranslocation in Larix principis-rupprechtii Mayr relative to fertilization and irrigation (2020)

Wan, Fangfang ; Ross-Davis, Amy L. ; Davis, Anthony S. ; [weitere]

Springer

In: New Forests. 2020; Published 2020 Feb 24. doi: 10.1007/s11056-020-09783-5. [early online release]

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Publikationsdatum: 2020-02-24

Print ISSN: 0169-4286

Digitale ISSN: 1573-5095

Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft

Publiziert von Springer

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Insights into the hyperglycosylation of human chorionic gonadotropin revealed by glycomics analysis (2020)

Ibeto, Linda ; Antonopoulos, Aristotelis ; Grassi, Paola ; [weitere]

Public Library of Science

In: PLoS ONE. 2020; 15(2): e0228507. Published 2020 Feb 11. doi: 10.1371/journal.pone.0228507.

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Publikationsdatum: 2020-02-11

Digitale ISSN: 1932-6203

Thema: Medizin , Allgemeine Naturwissenschaft

Publiziert von Public Library of Science

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Early growth and ecophysiological responses of Koa (Acacia koa A. Gray) seedlings to reduced water and phosphorus (2021)

Gerber, Kaitlin ; Ross-Davis, Amy ; Perakis, Steven S. ; [weitere]

Springer

In: New Forests. 2021; Published 2021 Sep 14. doi: 10.1007/s11056-021-09877-8. [early online release]

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Publikationsdatum: 2021-09-14

Print ISSN: 0169-4286

Digitale ISSN: 1573-5095

Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft

Publiziert von Springer

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Measurements of W+W−+ ≥ 1 jet production cross-sections in pp collisions at $$ sqrt{s} $$ = 13 TeV with the ATLAS detector (2021)

, ; Aad, G. ; Abbott, B. ; [weitere]

Springer

In: Journal of High Energy Physics. 2021; 2021(6): 3. Published 2021 Jun 01. doi: 10.1007/jhep06(2021)003.

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Publikationsdatum: 2021-06-01

Beschreibung: Fiducial and differential cross-section measurements of W+W− production in association with at least one hadronic jet are presented. These measurements are sensitive to the properties of electroweak-boson self-interactions and provide a test of perturbative quantum chromodynamics and the electroweak theory. The analysis is performed using proton-proton collision data collected at $$ sqrt{s} $$ s = 13 TeV with the ATLAS experiment, corresponding to an integrated luminosity of 139 fb−1. Events are selected with exactly one oppositely charged electron-muon pair and at least one hadronic jet with a transverse momentum of pT〉 30 GeV and a pseudorapidity of |η|

Print ISSN: 1126-6708

Digitale ISSN: 1029-8479

Thema: Physik

Publiziert von Springer

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A search for the decays of stopped long-lived particles at $$ sqrt{mathrm{s}} $$ = 13 TeV with the ATLAS detector (2021)

, ; Aad, G. ; Abbott, B. ; [weitere]

Springer

In: Journal of High Energy Physics. 2021; 2021(7): 173. Published 2021 Jul 01. doi: 10.1007/jhep07(2021)173.

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Publikationsdatum: 2021-07-01

Beschreibung: A search for long-lived particles, which have come to rest within the ATLAS detector, is presented. The subsequent decays of these particles can produce high-momentum jets, resulting in large out-of-time energy deposits in the ATLAS calorimeters. These de- cays are detected using data collected during periods in the LHC bunch structure when collisions are absent. The analysed dataset is composed of events from proton-proton collisions produced by the Large Hadron Collider at a centre-of-mass energy of $$ sqrt{s} $$ s = 13 TeV and recorded by the ATLAS experiment during 2017 and 2018. The dataset used for this search corresponds to a total live time of 579 hours. The results of this search are used to derive lower limits on the mass of gluino R-hadrons, assuming a branching fraction $$ mathcal{B}left(overset{sim }{g}o qoverline{q}{chi}_1^0 ight) $$ B g ~ → q q ¯ χ 1 0 = 100%, with masses of up to 1.4 TeV excluded for gluino lifetimes of 10−5 to 103 s.

Print ISSN: 1126-6708

Digitale ISSN: 1029-8479

Thema: Physik

Publiziert von Springer

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7

Digitale Medien

Darwinian evolution by self-propagating species under fractional order kinetics (1996)

Davis, Brian K.

Springer

Bulletin of mathematical biology 58 (1996), S. 99-101

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ISSN: 1522-9602

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Mathematik

Notizen: Abstract As in Darwinian evolution, population fitness increases among replicating molecules whose propagation rate coefficients form a normal (symmetric) distribution, even when replication kinetics are fractional order.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF02458283

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8

Digitale Medien

A theory of evolution that includes prebiotic self-organization and episodic species formation (1996)

Davis, Brian K.

Springer

Bulletin of mathematical biology 58 (1996), S. 65-97

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ISSN: 1522-9602

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Mathematik

Notizen: Abstract A theory has been proposed that encompasses pre-replication changes in RNA synthesis and non-gradual variant formation, in addition to competitive replication. Using a fundamental theorem of natural selection and maximum principle scaled to nucleotide condensation, evolutionin vitro was demonstrated to maximally damp both kinetic and thermodynamic forces driving this reaction, from its pre-replication stage. This led to the finding that evolution follows a path of least action. These principles form the framework for a general theory of evolution, whose scope extends beyond evolution modeled by synthesis of non-interacting RNA molecules. It applies, in particular, to standard processes, such as competitive crystallization. In calculations simulatingde novo formation of self-replicating RNA molecules in the Qβ replicase system, spontaneous changes in strand secondary structure promoted the transition from random copolymerization to template-directed polymerization. This finding indicates selection preceded genome self-propagation. Non-gradual species formation was attributed to the presence of heterogeneous thermodynamic forces. Growth unconstrained by competition follows mutation to a variant able to utilize a free energy source alien to its progenitors. Evolution in a heterogeneous system can, therefore, exhibit discontinuous rates of species formation and spawn new species populations. Natural selection among competing self-propagators thus gives way to a principle of wider scope stating that evolution optimally damps the physicochemical forces causing change within an evolving system.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF02458282

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9

Digitale Medien

Quantitative sampling of indoor air biomass by signature lipid biomarker analysis (1999)

Macnaughton, S J ; Cormier, M R ; Jenkins, T L ; [weitere]

Springer

Journal of industrial microbiology and biotechnology 22 (1999), S. 80-87

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ISSN: 1476-5535

Schlagwort(e): Keywords: airborne bacteria; phospholipid fatty acids; human health

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: Exposure to airborne biocontaminants may result in a multitude of health effects and is related to a pronounced increase in adult-onset asthma. Established culture-based procedures for quantifying microbial biomass from airborne environments have severe limitations. Assay of the phospholipid fatty acid (PLFA) components of airborne microorganisms provides a quantitative method to define biomass, community composition and nutritional/physiological activity of the microbial community. By collecting airborne particulate matter from a high volume via filtration, we collected sufficient biomass for quantitative PLFA analysis. Comparing high (filtration) and low (impaction) volume air sampling techniques at 26 locations within the Eastern United States, we determined that PLFA analysis provided a viable alternative to the established but flawed culture-based techniques for measuring airborne microbial biomass and community composition. Compared to the PLFA analysis, the culture techniques underestimated the actual viable airborne biomass present by between one to three orders of magnitude. A case study of a manufacturing plant at which there had been complaints regarding the indoor air quality is presented. Phospholipid fatty acid characterization of the biomass enabled contamination point source determination. In comparison with samples taken outdoors, increases in the relative proportion of trans PLFA, reflecting shifts in the physiological status of viable airborne Gram-negative bacteria, were detected in the indoor air samples at a majority of sampling sites.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/sj.jim.2900609

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10

Digitale Medien

A chemically-defined medium supporting growth and providing cells converting compactin to pravastatin (1999)

Peng, Y ; Walker, E A ; Davis, J C ; [weitere]

Springer

Journal of industrial microbiology and biotechnology 22 (1999), S. 78-79

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ISSN: 1476-5535

Schlagwort(e): Keywords: Actinomadura; pravastatin; compactin; nutrition; vitamins

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: Actinomadura sp strain 2966, which converts compactin to pravastatin, requires vitamins to support its growth. Addition of folic acid, thiamine and cyanocobalamine allowed growth in chemically-defined medium. Cells grown in a chemically-defined medium were as capable of converting compactin to pravastatin as cells grown in a complex medium.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/sj.jim.2900602

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