Results 61 to 70 of about 15,242,658 (212)

Microgels Enable iPSCs to Assemble, Expand, and Differentiate Into Organoids—From Sizable to High‐Throughput

open access: yesAdvanced Materials, EarlyView.
A chemically defined PEG‐based microgel platform enables scalable, reproducible production of three‐dimensional microgel‐iPSC constructs in multiple sizes. The system is compatible with high‐throughput automation and supports human iPSC expansion and differentiation within a single construct, including directed differentiation into cardiac organoids ...
Laura Klasen   +8 more
wiley   +1 more source

Conferences on Combinatorial and Additive Number Theory

open access: yes, 2014
This proceedings volume is based on papers presented at the Workshops on Combinatorial and Additive Number Theory (CANT), which were held at the Graduate Center of the City University of New York in 2011 and 2012.
Nathanson, Melvyn
core   +1 more source

Bridging Biosensing and Hardware‐Level Data Security With a Conjugated Radical Polymer

open access: yesAdvanced Materials, EarlyView.
A conjugated radical polymer provides two complementary functions within a common material platform: sensitive dopamine biosensing and device‐specific stochastic electrical responses for security. The work demonstrates a materials‐based approach for combining bioelectronic signal acquisition with hardware‐level authentication while maintaining the ...
Hoyeon Lee   +9 more
wiley   +1 more source

Euler and his contribution to Number Theory

open access: yes, 2004
Discusses Leonard Euler and his contributions to the subject of mathematics. Outlines Euler's work in algebraic number theory, analytical number theory and arithmetic functions and provides exercises as ...
Scott, P.   +3 more
core  

Surface Functionalization Modulates Collective Cell Behavior Near Topological Defects Induced by Topographical Patterning

open access: yesAdvanced Materials Interfaces, EarlyView.
Strongly adhered cells align with concentric circular ridges and exhibit predominantly tangential motion, whereas weakly adhered cells fail to follow topographical guidance and display enhanced radial inward motion. ABSTRACT Living cells establish long‐range orientational order through collective alignment, giving rise to topological defects whose ...
Prasoon Awasthi   +4 more
wiley   +1 more source

Algebra and Number Theory: An Integrated Approach

open access: yes, 2011
Explore the main algebraic structures and number systems that play a central role across the field of mathematics Algebra and number theory are two powerful branches of modern mathematics at the forefront of current mathematical research, and each plays
Subbotin, Igor   +2 more
core  

Only up to isomorphism? Category Theory and the Foundations of Mathematics [PDF]

open access: yes, 2010
Does category theory provide a foundation for mathematics that is autonomous with respect to the orthodox foundation in a set theory such as ZFC? We distinguish three types of autonomy: logical, conceptual, and justificatory.
Pettigrew, Richard, Linnebo, Øystein
core  

Life‐Like Ferrous Oxide Microspheres from Kombucha

open access: yesAdvanced Materials Interfaces, EarlyView.
Kombucha bacterial cellulose, sodium alginate, and ferrous nitrate self‐assemble into membrane‐enclosed iron oxide microspheres. These microspheres bud daughter vesicles, sustain 24‐h electrochemical oscillations, and filter theta‐band signals.
Panagiotis Mougkogiannis   +2 more
wiley   +1 more source

Developing pupil profiles in primary mathematics using item response theory

open access: yes, 1997
As part of a multidisciplinary research entitled Primary Pupil Profiling Project, a team of Mathematics educators had developed a set of test instruments which could provide profiles of pupils in their performance of basic skills and processes across the
Yap, Sook Fwe   +3 more
core  

Combinatorics, Automata and Number Theory

open access: yes, 2010
editorial reviewedThis collaborative volume presents trends arising from the fruitful interaction between the themes of combinatorics on words, automata and formal language theory, and number theory.

core   +1 more source

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