Articles with "delta" as a keyword



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COVID-19 Symptoms and Duration of Rapid Antigen Test Positivity at a Community Testing and Surveillance Site During Pre-Delta, Delta, and Omicron BA.1 Periods

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Published in 2022 at "JAMA Network Open"

DOI: 10.1001/jamanetworkopen.2022.35844

Abstract: This cross-sectional study compares COVID-19 symptoms during the Omicron BA.1 period with the pre-Delta and Delta variant periods and assesses the duration of rapid antigen test positivity at a walk-up community testing site. read more here.

Keywords: delta; pre delta; rapid antigen; covid symptoms ... See more keywords
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Effectiveness of mRNA-1273, BNT162b2, and JNJ-78436735 COVID-19 Vaccines Among US Military Personnel Before and During the Predominance of the Delta Variant.

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Published in 2022 at "JAMA network open"

DOI: 10.1001/jamanetworkopen.2022.8071

Abstract: Importance No studies to date have evaluated the effectiveness of 3 COVID-19 vaccines in the US military population, especially during the circulation of the SARS-CoV-2 Delta (B.1.617.2) variant. Objective To estimate the effectiveness of the… read more here.

Keywords: delta; period; effectiveness; jnj 78436735 ... See more keywords
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Anion Doping: A New Strategy for Developing High-Performance Perovskite-Type Cathode Materials of Solid Oxide Fuel Cells

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Published in 2017 at "Advanced Energy Materials"

DOI: 10.1002/aenm.201700242

Abstract: Overcoming the sluggish activity of cathode materials is critical to realizing the wide-spread application of intermediate-temperature solid oxide fuel cells. Herein, a new way is reported to tune the performance of perovskitetype materials as oxygen… read more here.

Keywords: anion doping; delta; cathode materials; performance ... See more keywords
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Psychometric properties of infant electroencephalography: Developmental stability, reliability, and construct validity of frontal alpha asymmetry and delta-beta coupling.

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Published in 2021 at "Developmental psychobiology"

DOI: 10.1002/dev.22178

Abstract: Resting-state electroencephalography (EEG) provides developmental neuroscientists a noninvasive view into the neural underpinnings of cognition and emotion. Recently, the psychometric properties of two widely used neural measures in early childhood-frontal alpha asymmetry and delta-beta coupling-have… read more here.

Keywords: delta beta; delta; alpha asymmetry; beta coupling ... See more keywords
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The case fatality rate of COVID‐19 during the Delta and the Omicron epidemic phase: A meta‐analysis

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Published in 2023 at "Journal of Medical Virology"

DOI: 10.1002/jmv.28522

Abstract: As coronavirus variants are constantly occurring, we tried to understand more about the omicron and delta variants that have hit the world. We provided dynamic information on the case fatality rate (CFR) of the Omicron… read more here.

Keywords: meta analysis; delta; omicron epidemic; covid ... See more keywords
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Evolution of SARS-CoV-2 variants of concern over a period of Delta and Omicron cocirculation, among patients hospitalized for COVID-19 in an Italian reference hospital: Impact on clinical outcomes.

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Published in 2023 at "Journal of medical virology"

DOI: 10.1002/jmv.28831

Abstract: Despite the higher transmissibility of Omicron Variant of Concern (VOC), several reports have suggested lower risk for hospitalization and severe outcomes compared to previous variants of SARS-CoV-2. This study, enrolling all COVID-19 adults admitted to… read more here.

Keywords: delta; omicron; progression; reference hospital ... See more keywords
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The effect of hoisting on variants of Hierarchical Delta Debugging

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Published in 2022 at "Journal of Software: Evolution and Process"

DOI: 10.1002/smr.2483

Abstract: Minimizing failing test cases is an important preprocessing step on the path of debugging. If much of a test case that triggered a bug does not contribute to the actual failure, then the time required… read more here.

Keywords: hierarchical delta; delta; hoisting variants; effect hoisting ... See more keywords
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Convergence of Bi-shift Localized Szász–Mirakjan Operators

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Published in 2019 at "Results in Mathematics"

DOI: 10.1007/s00025-019-1119-3

Abstract: AbstractLet $$\{\delta _{n} \}^{\infty }_{n=1}$${δn}n=1∞   and   $$\{\delta ^{\prime }_{n}\}^{\infty }_{n=1}$${δn′}n=1∞ be two sequences of positive numbers, and $$\begin{aligned} C_{n,x}= \{ k: k\in N\cup \{0\} \,\,\text{ and }\,\, n(x-\delta ^{\prime }_{n})\le k\le n(x+\delta _{n}) \}. \end{aligned}$$Cn,x={k:k∈N∪{0}andn(x-δn′)≤k≤n(x+δn)}.For… read more here.

Keywords: delta; shift localized; localized mirakjan; mirakjan operators ... See more keywords
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On the abundance problem for 3-folds in characteristic $$p>5$$p>5

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Published in 2018 at "Mathematische Zeitschrift"

DOI: 10.1007/s00209-018-2110-5

Abstract: In this article we prove two cases of the abundance conjecture for 3-folds in characteristic $$p>5$$p>5: (i) $$(X, \Delta )$$(X,Δ) is klt and $$\kappa (X, K_X+\Delta )=1$$κ(X,KX+Δ)=1, and (ii) $$(X, \Delta )$$(X,Δ) is klt, $$K_X+\Delta… read more here.

Keywords: folds characteristic; delta; abundance problem; problem folds ... See more keywords
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Anomalous Dimensions for Boundary Conserved Currents in Holography via the Caffarelli–Silvestre Mechanism for p-forms

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Published in 2019 at "Communications in Mathematical Physics"

DOI: 10.1007/s00220-019-03292-z

Abstract: Although it is well known that the Ward identities prohibit anomalous dimensions for conserved currents in local field theories, a claim from certain holographic models involving bulk dilaton couplings is that the gauge field associated… read more here.

Keywords: gamma; field; conserved currents; delta ... See more keywords
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A generalization of the Dedekind–MacNeille completion

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Published in 2018 at "Semigroup Forum"

DOI: 10.1007/s00233-017-9911-4

Abstract: In this paper we introduce the notion of $$Z_{\delta }$$Zδ-continuity as a generalization of precontinuity, complete continuity and $$s_{2}$$s2-continuity, where Z is a subset selection. And for each poset P, a closure space $$Z^{c}_{\delta }(P)$$Zδc(P)… read more here.

Keywords: generalization; completion; delta; delta completion ... See more keywords