Results 21 to 30 of about 4,691 (197)

Electroactive 3D Porous Graphene Foam Impedimetric Biosensor for Ultrasensitive Detection of MCF‐7‐Cells‐Derived Extracellular Vesicles in Human Serum

open access: yesAdvanced Materials Technologies, EarlyView.
A label‐free impedimetric biosensor based on electroactive 3D porous graphene foam enables ultrasensitive and selective detection of CD81 protein and MCF‐7 cell‐derived extracellular vesicles in human serum. Detection limits of 0.048 fg/mL for CD81 and ∼24 EVs/mL are achieved, demonstrating a robust platform for selective, label‐free, and ...
Michael Robert Furness   +11 more
wiley   +1 more source

Heat‐to‐Electricity Conversion Using Barium Strontium Titanate Multilayer Capacitors

open access: yesAdvanced Science, EarlyView.
Lead‐free barium strontium titanate multilayer capacitors convert waste heat into electricity via the Olsen electro‐thermodynamic cycle. These capacitors achieve an energy density of 3.7 J cm−3, comparable to the performance of lead‐based ceramics. Their high dielectric strength and broad operating temperature window below 100°C make them practical for
Fan Ni   +10 more
wiley   +1 more source

Variations of central limit theorems and Stirling numbers of the first kind

open access: yesDiscrete Mathematics Letters, 2023
We construct a new parametrization of double sequences $\{A_{n,k}(s)\}_{n,k}$ between $A_{n,k}(0)= \binom{n-1}{k-1}$ and $A_{n,k}(1)= \frac{1}{n!}\stirl{n}{k}$, where $\stirl{n}{k}$ are the unsigned Stirling numbers of the first kind. For each $s$ we prove a central limit theorem and a local limit theorem.
Bernhard Heim, Markus Neuhauser
openaire   +3 more sources

Advancements in CO2 Capture Technologies: A Review of Amine Absorption and Alternative Methods for Post‐Combustion Integration

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Carbon capture technologies are poised to become one of the primary focuses regarding the achievement of net‐zero emissions by the year 2050. In these technologies, particular attention is given to post‐combustion CO2 capture, which is more easily implemented at existing power stations and other industries.
Satyajit Mukherjee   +3 more
wiley   +1 more source

One‐Step Electrodeposition of Iron Oxyhydroxide Onto 3D Porous Graphene Substrates for on Chip Asymmetric Micro‐Supercapacitors

open access: yesBatteries &Supercaps, Volume 8, Issue 3, March 2025.
A micro‐supercapacitor with electrodeposited iron oxyhydroxide (FeOOH) as the negative electrode and birnessite manganese oxide (MnO2) as the positive electrode achieves a 2 V working voltage, stable cycling in an aqueous electrolyte, and high energy and power densities of 21 μWh cm‐2 and 2.5 mW cm‐2 respectively.
Filipe Braga   +6 more
wiley   +1 more source

New Proof of the Property of Stirling Number Based on Fubini Polynomials

open access: yesJournal of Mathematics
The main purpose of this article is using the elementary methods and the properties of the Fubini polynomials to study the congruence properties of a signless Stirling number of the first kind and solve a conjecture proposed by J. H. Zhao and Z. Y. Chen.
Li Wang, Xiaoge Liu
doaj   +1 more source

Measuring what matters: Evaluating the impact of curriculum decolonisation initiatives in UK business schools

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Curriculum decolonisation has become a prominent feature of equity agendas in UK higher education, yet there remains limited empirical and theoretical work on how such initiatives are evaluated, particularly within business schools. This paper presents one of the first multi‐institutional empirical studies examining how UK business schools ...
Sally Everett   +2 more
wiley   +1 more source

Exploring interactions of the dimensions of agency through the experiences of aspiring school leaders in Scotland, UK

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Agency has increasingly become a central concept in educational leadership research, yet its application to those preparing to enter school leadership roles remains underexplored. Drawing on the conceptual framework of the ecological approach to teacher agency, we explored how and in what ways aspiring school leaders in Scotland (n = 21 ...
Romina Madrid Miranda   +2 more
wiley   +1 more source

Looking for hopeful purpose in England's environmental education policy: An analysis of the National Education Nature Park

open access: yesBritish Educational Research Journal, EarlyView.
Abstract The intertwined crises of climate change, biodiversity loss and environmental degradation represent profound global challenges. Education holds a unique role in enabling all young people to navigate uncertainty, participate meaningfully in decision‐making and contribute to more just and sustainable ways of living.
Julie Robinson   +2 more
wiley   +1 more source

Enhancing the Secretion Systems: Genetic Engineering of Super Bioagents for Effective Plant Disease Control

open access: yesBiotechnology and Bioengineering, EarlyView.
Genetic engineering (GE) overcomes BCA limits, enabling robust, scalable crop protection. “Super Bioagents” (SBs) use optimized SSs to enhance bioactive molecule delivery. Optimizing SSs enhance precise, sustainable effector deployment for stable disease suppression. SBs use microbiome‐informed design for scalable, next‐gen sustainable crop protection.
Michael Dare Asemoloye
wiley   +1 more source

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