Results 201 to 210 of about 40,668 (308)

Fractional derivatives, splines and tomography [PDF]

We develop a spline calculus for dealing with fractional derivatives. After a brief review of fractional splines, we present the main formulas for computing the fractional derivatives of the underlying basis functions. In particular, we show that the $ γ
Blu, Thierry, Unser, Michael, Horbelt, Stefan   +2 more
core  

Modeling of Stress Relaxation Behavior in HDPE and PP Using Fractional Derivatives. [PDF]

Polymers (Basel)
Segura-Méndez KL, Puente-Córdova JG, Rentería-Baltiérrez FY, Luna-Martínez JF, Mohamed-Noriega N.   +4 more
europepmc   +1 more source

Rapid screening of staphylokinase protein variants using an unpurified cell‐free expression system

FEBS Open Bio, EarlyView.
An unpurified cell‐free protein synthesis (CFPS) platform enables rapid functional screening of staphylokinase variants. Direct plasminogen‐activation assays performed in microplate format provide real‐time activity readouts, allowing rapid identification and ranking of variants with improved or reduced fibrinolytic activity without protein ...
Maria Tomková, Veronika Hovanová, Jiri Damborsky, Erik Sedlák   +3 more
wiley   +1 more source

Fractional modeling and numerical investigations of COVID-19 epidemic model with non-singular fractional derivatives: a case study. [PDF]

Sci Rep
Batool H, Khan I, Li W, Junaid M, Zhang J, Nawaz A, Tian L.   +6 more
europepmc   +1 more source

New discrete-time fractional derivatives based on the bilinear transformation: Definitions and properties. [PDF]

J Adv Res, 2020
Ortigueira MD, Tenreiro Machado JA.
europepmc   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Mathematical modeling of allelopathic stimulatory phytoplankton species using fractal-fractional derivatives. [PDF]

Sci Rep
Kumawat S, Bhatter S, Bhatia B, Purohit SD, Suthar DL.   +4 more
europepmc   +1 more source

Modeling and analysis of COVID-19 epidemics with treatment in fractional derivatives using real data from Pakistan. [PDF]

Eur Phys J Plus, 2020
Naik PA, Yavuz M, Qureshi S, Zu J, Townley S.   +4 more
europepmc   +1 more source

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

FEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane, Lea Nikolić, Lorenzo Maraio, Thomas Goiran, Nathan Karpilovsky, Stefano Sellitto, Vangelis Bouris, Jiang‐An Yin, Ronald Melki, Edward A Fon, Adriano Aguzzi, Elena De Cecco   +11 more
wiley   +1 more source

On Riemann-Liouville integrals and Caputo Fractional derivatives via strongly modified (p, h)-convex functions. [PDF]

PLoS One
Nosheen A, Khan KA, Bukhari MH, Kahungu MK, Aljohani AF.   +4 more
europepmc   +1 more source