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Lipid profile in elderly and centenarian subjects in Kazakhstan: a case-control study

Yu. Ganzhula, Zh. Borykbay, V. Tkachev, S. Urazova et al. • Central Asian Journal of Medical Hypotheses and Ethics (2024)

Introduction. The health of centenarians is a major focus in global studies. Dyslipidemia is directly linked to the risk of cardiovascular diseases, which pose a growing burden on healthcare due to the increasing elderly population. Studyin...

DOAJ Open Access (DOAJ) DOI: 10.47316/cajmhe.2024.5.3.04

Exploring the Intestinal Microbiota and Metabolome Profiles Associated With Feed Efficiency in Pacific Abalone (Haliotis discus hannai)

Wenchao Yu, Wenchao Yu, Yisha Lu, Yisha Lu et al. • Frontiers in Microbiology (2022)

Feed efficiency (FE) is critical to the economic and environmental benefits of aquaculture. Both the intestines and intestinal microbiota play a key role in energy acquisition and influence FE. In the current research, intestinal microbiota...

DOAJ Open Access (DOAJ) DOI: 10.3389/fmicb.2022.852460

Reproductive Biology of Female Pacific Halibut (Hippoglossus stenolepis) in the Gulf of Alaska

Teresa Fish, Teresa Fish, Nathan Wolf, Timothy Scott Smeltz et al. • Frontiers in Marine Science (2022)

Developing a robust understanding of Pacific halibut reproductive biology is essential to understanding the different components (e.g. maturity) that determine the reproductive output of the species and, therefore, for estimating the relati...

DOAJ Open Access (DOAJ) DOI: 10.3389/fmars.2022.801759

Negative emissions technologies and practices could challenge global resource supply and environmental limits

Selene Cobo, Ángel Galán-Martín, Gonzalo Guillén-Gosálbez • Communications Earth & Environment (2026)

Abstract Meeting climate goals will most likely require large-scale carbon dioxide removal, yet its sustainability implications remain poorly understood. Here, we conduct a prospective life cycle assessment of multiple negative emissions te...

DOAJ Open Access (DOAJ) DOI: 10.1038/s43247-026-03348-8

Electrochemical Sensor for Simple and Sensitive Determination of Hydroquinone in Water Samples Using Modified Glassy Carbon Electrode

Parisa Karami-Kolmoti, Hadi Beitollahi, Sina Modiri • Biomedicines (2023)

This study addressed the use of manganese dioxide nanorods/graphene oxide nanocomposite (MnO2 NRs/GO) for modifying a glassy carbon electrode (GCE). The modified electrode (MnO2 NRs/GO/GCE) was used as an electrochemical sensor for the dete...

DOAJ Open Access (DOAJ) DOI: 10.3390/biomedicines11071869

The Emergence of Mathematical Meaning

• Routledge eBooks (2012)

Contents: Preface. P. Cobb, H. Bauersfeld, Introduction: The Coordination of Psychological and Sociological Perspectives in Mathematics Education. P. Cobb, E. Yackel, T. Wood, The Teaching Experiment Classroom. P. Cobb, Mathematical Learnin...

OPENALEX DOI: https://doi.org/10.4324/9780203053140

The Effects of the Weak Allee Effect and Disease on the Dynamics of a Predator–Prey System: Stability and Bifurcation Properties

Yurong Dong, Hua Liu, Jianhua Ye, Gang Ma et al. • Axioms (2025)

In this paper, an eco-epidemiological model with a weak Allee effect and prey disease dynamics is discussed. Mathematical features such as non-negativity, boundedness of solutions, and local stability of the feasible equilibria are discusse...

DOAJ Open Access (DOAJ) DOI: 10.3390/axioms14070531

AMPLITUDE-TIME ANALYSIS OF BIOMECHANICAL PATTERNS OF HUMAN MOTIONS

DAVYDOVA, Nadezhda, LUKASHEVICH, Dmitry, BYKOV, Dmitry, VASIUK, Valery et al. • Journal of Engineering Science (Chişinău) (2020)

Biomechanical analysis of motions solves the tasks of efficiency estimation of movement realization, search of technique optimal variants and tactics of motion performance, definition of a degree and reasons of not matching real movement ac...

DOAJ Open Access (DOAJ) DOI: 10.5281/zenodo.3949690

Cooperation-Based Modeling of Sustainable Development: An Approach from Filippov’s Systems

Jorge A. Amador, Johan Manuel Redondo, Gerard Olivar‐Tost, Christian Erazo • Complexity (2021)

The concept of Sustainable Development has given rise to multiple interpretations. In this article, it is proposed that Sustainable Development should be interpreted as the capacity of territory, community, or landscape to conserve the noti...

DOAJ Open Access (DOAJ) DOI: 10.1155/2021/4249106

Mathematics without Numbers

Geoffrey Paul Hellman (1993)

Abstract Develops a structuralist understanding of mathematics, as an alternative to set‐ or type‐theoretic foundations, that respects classical mathematical truth while minimizing Platonist commitments to abstract entities. Modal logic is ...

OPENALEX DOI: https://doi.org/10.1093/0198240341.001.0001

Cloud point extraction procedure for preconcentration and determination of lead(II) ions using triton X-100 at room temperature

Suljkanović Mersiha, Suljagić Jasmin, Hasić Nusreta, Hodžić Selmina • Acta Periodica Technologica (2019)

A Cloud point extraction (CPE) procedure was presented for preconcentration of lead(II) ions, after complexation by 18-crown-6 (18C6) and extraction with Triton X-100 at proposed experimental conditions. After separation of surfact...

DOAJ Open Access (DOAJ) DOI: 10.2298/APT1950286S

Naturalism in Mathematics

Penelope Maddy (2000)

Abstract It is well known that certain natural statements of set theory, like Cantor's continuum hypothesis (CH), cannot be proved or disproved on the basis of the standard axioms (Zermelo–Fraenkel with Choice or ZFC). Some philosophers tak...

OPENALEX DOI: https://doi.org/10.1093/0198250754.001.0001

Implementation of a Transform-Minutiae Fusion-Based Model for Fingerprint Recognition

Justice Kwame Appati, Prince Kofi Nartey, Ebenezer Owusu, Ismail Wafaa Denwar • International Journal of Mathematics and Mathematical Sciences (2021)

Biometrics consists of scientific methods of using a person’s unique physiological or behavioral traits for electronic identification and verification. The traits for biometric identification are fingerprint, voice, face, and palm print rec...

DOAJ Open Access (DOAJ) DOI: 10.1155/2021/5545488