Results 41 to 50 of about 61,340 (312)
Advanced Science, EarlyView.Carbon dots (CDs) are incorporated into ZIF‐8 to synthesize CDs@ZIF‐8 nanocomposites, which exhibit dual photodynamic enhanced antimicrobial properties. This enhancement is due to the narrow bandgap of CDs@ZIF‐8, which facilitates interfacial electronic transfer, resulting in increased reactive oxygen species. Microfluidic blow spinning is then used to
Yongrui Ti +10 more
wiley +1 more source
A Perturbed Cauchy Viscoelastic Problem in an Exterior Domain
Mathematics, 2023 A Cauchy viscoelastic problem perturbed by an inverse-square potential, and posed in an exterior domain of RN, is considered under a Dirichlet boundary condition.
Bessem Samet, Calogero Vetro
doaj +1 more source
Nonexistence results for nonlocal equations with critical and supercritical nonlinearities [PDF]
, 2013 We prove nonexistence of nontrivial bounded solutions to some nonlinear problems involving nonlocal operators of the form \[Lu(x)=\sum a_{ij}\partial_{ij}u+{\rm PV}\int_{\R^n}(u(x)-u(x+y))K(y)dy.\] These operators are infinitesimal generators of ...
Ros-Oton, Xavier, Serra, Joaquim
core
Remarks on two fourth order elliptic problems in whole space
, 2014 We are interested in entire solutions for the semilinear biharmonic equation $\Delta^{2}u=f(u)$ in $\R^N$, where $f(u)=e^{u}$ or $-u^{-p}\ (p>0)$. For the exponential case, we prove that any classical entire solution verifies $-\Delta u>0$ without any ...
Lai, Baishun, Ye, Dong
core +3 more sources
Electrochemical Doping for Absorption and Conductivity Tuning of P(NDI2OD‐T2) Films
Advanced Electronic Materials, EarlyView.Electrochemical doping of P(NDI2OD‐T2) films allows for tuning the degree of doping both in liquid electrolytes as well as in the solid state. The nature of the doped species is elucidated by UV–vis spectroscopy and accompanying DFT calculations. Correlations between maximum conductivities and the presence of mixed valence states, (specifically neutral/
David Neusser +8 more
wiley +1 more source
The nonexistence of NH4OH [PDF]
Journal of Chemical Education, 1993 An exchange of letters questioning a previous author's choice of words in describing ammonium hydroxide.
openaire +4 more sources
King and Cochrane: The technological treadmill and racial inequity in US agriculture
Applied Economic Perspectives and Policy, EarlyView.Abstract Between 1920 and 1969, the number of Black farmers in the US decreased from 14% of all operators to 4%. Using Martin Luther King Jr.'s critique of agricultural policy and Willard Cochrane's theory of the technological treadmill, we explore how racial discrimination was linked to policies that led to structural change in US agriculture.
Jared Hutchins, Jacopo De Marinis
wiley +1 more source
Existence and Nonexistence of Descriptive Patterns [PDF]
Theoretical Computer Science, 2009 AbstractIn the present paper, we study the existence of descriptive patterns, i.e. patterns that cover all words in a given set through morphisms and that are optimal in terms of revealing commonalities of these words. Our main result shows that if patterns may be mapped to words by arbitrary morphisms, then there exist infinite sets of words that do ...
Daniel Reidenbach +1 more
openaire +3 more sources
On the nonexistence of pseudo-generalized quadrangles [PDF]
European Journal of Combinatorics, 2020 In this paper we consider the question of when a strongly regular graph with parameters $((s+1)(st+1),s(t+1),s-1,t+1)$ can exist. These parameters arise when the graph is derived from a generalized quadrangle, but there are other examples which do not arise in this manner, and we term these {\it pseudo-generalized quadrangles}.
Ivan Guo +3 more
openaire +3 more sources
Agribusiness, EarlyView.Abstract Nucleus outgrower schemes are contractual arrangements where well‐resourced large‐scale farmers (nucleus farmers) are empowered by development support agencies to take charge of smallholder farmers, by providing them with market access and the necessary training on agronomic practices and farm inputs for production.
Dominic Tasila Konja, Awudu Abdulai
wiley +1 more source