Results 121 to 130 of about 177,679 (314)

Fragments of arithmetic

open access: yesAnnals of Pure and Applied Logic, 1985
The weakest system considered in this paper is the primitive recursive arithmetic (PRA) of Hilbert-Bernays, and the strongest are subsystems of analysis close to those considered by H. Friedman and by Minc. For instance (F) is the system whose axioms are quantifier free induction axioms (QF-IA) [but possibly with second order parameters in defining ...
openaire   +1 more source

Robust Antifogging and Antifouling Coating Tailored with Zwitterionic Nanocellulose for Multi‐Functional Applications

open access: yesAdvanced Science, EarlyView.
A multifunctional, zwitterionic nanocellulose‐based coating is developed with lysine modification and polyacrylic acid integration, enabling robust antifogging and antifouling performance. With excellent hydrophilicity, mechanical strength, and biocompatibility, the coating shows promising potential for use in medical, food, and marine applications ...
Yanyi Duan   +12 more
wiley   +1 more source

An Automated Micro‐Immunobeads‐Based Electromagnetic Operation System (MEMOs) for Blood Testing of Alzheimer's Disease

open access: yesAdvanced Science, EarlyView.
This work presents an automated and accessible point‐of‐care device, MEMOs, for the detection of exosomal Aβ42 protein, a potential blood biomarker for Alzheimer’s disease. MEMOs, with its automated operation workflow, minimizes hands‐on time and maintains high sensitivity in diagnosing AD, allowing non‐specialists to conduct tests at home and offering
Xiaoxue Fan   +10 more
wiley   +1 more source

Peningkatan Kemampuan Pemecahan Masalah Siswa Melalui Problem-Based Learning (PBL) Berbantuan Alat Peraga

open access: yesArithmetic
This research aims to apply problem-based learning with a teaching props to improve the problem-solving abilities of polyhedron. This type of research is Class Action Research (PTK) that is carried out in three cycles.
Dela Suliarti   +2 more
doaj   +1 more source

A kinematically Bifurcated Metamaterial for Integrated Logic Operation and Computing

open access: yesAdvanced Science, EarlyView.
A family of 2n‐side kinematic polygonal modules with n decoupled inputs and 2n extreme configurations via kinematic bifurcation is proposed. It allows integrating seven basic logic gates on a quadrilateral module. Moreover, a minimized Parallel Computing Sum of Products function is developed, enabling all 2‐bit arithmetic (including division ...
Kaili Xi   +6 more
wiley   +1 more source

Kemampuan Pemecahan Masalah Berbasis Pendekatan Realistic Mathematics Education (RME)

open access: yesArithmetic
Problem-solving ability is a student's ability to involve the process of a task whose solution method is not yet known in advance. To complete the solution, students need to map their knowledge.
Leadyania Hasbilah Tazia   +2 more
doaj   +1 more source

d‐Electron Asymmetry‐Driven CN Coupling on Heteronuclear Dual‐Atom Catalysts for Sustainable Urea Electrosynthesis

open access: yesAdvanced Science, EarlyView.
Electrochemical urea synthesis is a promising route to sustainable nitrogen chemistry. This study combines quantum simulations and interpretable machine learning to uncover how dual‐metal atomic sites promote C‐N bond formation. Key catalysts are identified, and a simple electronic descriptor is built, offering design rules for next‐generation ...
Zaifu Jiang   +4 more
wiley   +1 more source

Pengaruh Disposisi Produktif terhadap Kemampuan Pemahaman Instrumental Mahasiswa

open access: yesArithmetic
This study aim to see the effect of Productive Disposition on Students' Instrumental Understanding Ability. The subjects of the study were students of the Arabic Language Education Study Program in Semester III who took the Educational Statistics Course.
Fevi Rahmadeni
doaj   +1 more source

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