Results 31 to 40 of about 2,427,943 (336)
International Journal of Circumpolar Health, 2022 The second year of the COVID-19 pandemic in the Arctic was dominated by the Delta wave that primarily lasted between July and December 2021 with varied epidemiological outcomes.
Sweta Tiwari +7 more
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Viruses, 2021 The capacity of convalescent and vaccine-elicited sera and monoclonal antibodies (mAb) to neutralize SARS-CoV-2 variants is currently of high relevance to assess the protection against infections.
Alexander Wilhelm +8 more
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A simple microcontroller based digital lock-in amplifier for the detection of low level optical signals [PDF]
, 2002 Traditionally digital lock-in amplifiers sample the input signal at a rate much higher than the lock-in reference frequency and perform the lock-in algorithm with high-speed processors.
Dorrington, Adrian A. +1 more
core +2 more sources
Frontiers in Bioscience-Landmark, 2022 Background: The recently emerged variants of the severe acute respiratory coronavirus 2 (SARS-CoV-2) pose a threat to public health. Understanding the pathogenicity of these variants is a salient factor in the development of effective SARS-CoV-2 ...
Kuruppu Arachchillage Praboda Priyangi Kuruppuarachchi +2 more
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Marsh Sedimentation Controls Delta Top Morphology, Slope, and Mass Balance
Geophysical Research Letters, 2022 Rising sea levels, subsidence, and decreased fluvial sediment load threaten river deltas and their wetlands. However, the feedbacks between fluvial and non‐fluvial (marsh) deposition remain weakly constrained.
K. M. Sanks +5 more
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Frontiers in Immunology, 2022 The COVID-19 pandemic shows that vaccination strategies building on an ancestral viral strain need to be optimized for the control of potentially emerging viral variants.
Lisa Paschold +11 more
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Journal of Knot Theory and Its Ramifications, 2016 We call a delta diagram any diagram of a knot or link whose regions (including the unbounded one) have 3, 4, or 5 sides. We prove that any knot or link admits a delta diagram. We define and estimate combinatorial link invariants stemming from this definition.
Jablan, Slavik +2 more
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Applying SPOT Images to Study the Colorado River Effects on the Upper Gulf of California
Proceedings, 2017 Sediment discharges from rivers play a key role in downstream ecosystems, both for ecosystem morphology (e.g., deltas) and productivity. However, the construction of dams and river regulation dramatically alter sediment transport. Currently, the Colorado
Jesús A. Aguilar-Maldonado +2 more
doaj +1 more source
Applied Sciences, 2021 The Nakdong River delta, located in southeastern Korea, preserves thick and wide sediments, which are suitable for the high-resolution study of the evolution of depositional environments in the lower delta plain area.
Eun Je Jeong +4 more
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Journal of Algebra, 1994 A small category is called a delta if it is skeletal and the only endomorphisms are the identities. A small category \({\mathcal C}\) is \(R\)- hereditary if the functor category \((\text{Mod} R)^{\mathcal C}\) has global dimension at most one, where \(\text{Mod} R\) denotes the category of left \(R\)-modules, \(R\) is a ring with an identity.
Cheng, C.C.A., Wong, R.W.
openaire +2 more sources