Results 11 to 20 of about 94,141 (131)

Ostracod Genetic Variability in Response to Lake Level-Driven Salinity Dynamics in Nam Co, Central Tibetan Plateau, in the Past Two Millennia. [PDF]

open access: yesEcol Evol
Using sedimentary ancient DNA metabarcoding on a two‐millennia sediment core from Nam Co (Tibetan Plateau), the study reconstructs ostracod community shifts and genetic diversity in response to hydrological and climatic changes. Species richness peaked during moister intervals, while alternating dominance during the Medieval Climate Anomaly and Little ...
Dulias K   +12 more
europepmc   +2 more sources

Hybrid genetic algorithm for undirected traveling salesman problems with profits

open access: yesNetworks, Volume 82, Issue 3, Page 189-221, October 2023., 2023
Abstract The orienteering problem (OP) and prize‐collecting traveling salesman problem (PCTSP) are two typical TSPs with profits, in which each vertex has a profit and the goal is to visit several vertices to optimize the collected profit and travel costs. The OP aims to collect the maximum profit without exceeding the given travel cost.
Pengfei He, Jin‐Kao Hao, Qinghua Wu
wiley   +1 more source

Extending exploratory diagnostic classification models: Inferring the effect of covariates

open access: yesBritish Journal of Mathematical and Statistical Psychology, Volume 76, Issue 2, Page 372-401, May 2023., 2023
Abstract Diagnostic models provide a statistical framework for designing formative assessments by classifying student knowledge profiles according to a collection of fine‐grained attributes. The context and ecosystem in which students learn may play an important role in skill mastery, and it is therefore important to develop methods for incorporating ...
Hulya Duygu Yigit   +1 more
wiley   +1 more source

Multisource Deep Transfer Learning Based on Balanced Distribution Adaptation

open access: yesComputational Intelligence and Neuroscience, Volume 2022, Issue 1, 2022., 2022
The current traditional unsupervised transfer learning assumes that the sample is collected from a single domain. From the aspect of practical application, the sample from a single‐source domain is often not enough. In most cases, we usually collect labeled data from multiple domains.
Peng Gao   +4 more
wiley   +1 more source

Numerical Model on the Dynamic Behavior of a Prototype Kaplan Turbine Runner

open access: yesMathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021
Experimental and numerical investigations of the modal behavior of a prototype Kaplan turbine runner in air have been conducted in this paper. The widely used roving accelerometer method was used in the experimental modal analysis. A systematic approach from a single blade model to the whole runner has been used in the simulation to get a thorough ...
Ming Zhang, Qing-Guang Chen, Gengxin Sun
wiley   +1 more source

New Streptomyces-Derived Antibacterial Compounds Targeting Gram-Positive Bacteria: A Systematic Review. [PDF]

open access: yesScientificWorldJournal
Bacterial infections, particularly those caused by Gram‐positive bacteria like vancomycin‐resistant enterococci (VRE) and methicillin‐resistant Staphylococcus aureus (MRSA), are a growing concern. This review highlights the potential of the Streptomyces genus in producing novel antibacterial compounds against Gram‐positive bacteria.
Ait Assou S, El Hassouni M.
europepmc   +2 more sources

Protective Effect of Simplicillium sp. Ethyl Acetate Extract against High Glucose‐Induced Oxidative Stress in HUVECs

open access: yesEvidence-Based Complementary and Alternative Medicine, Volume 2020, Issue 1, 2020., 2020
This study aimed at investigating the cytoprotective effect of an ethyl acetate extract of insect fungi against high glucose‐ (HG‐) induced oxidative damage in human umbilical vein endothelial cells (HUVECs). An insect fungus strain termed CH180672 (CH) was found for protecting HUVECs from HG‐induced damage.
Ting-Ting Tian   +5 more
wiley   +1 more source

Plato’s Socrates, Sophistic Antithesis and Scepticism

open access: yesPlato, 2019
In some Platonic dialogues Socrates apparently shares significant characteristics with contemporary sophists, especially a technique of antithetical argumentation.
Dougal Blyth
doaj   +1 more source

El pensamiento sistémico y sus relaciones con el ámbito educativo: del paradigma lineal a la trama circular

open access: yesRevista Filosofía UIS, 2016
El presente artículo reflexiona sobre el sentido de los diálogos entre educación, comunicación y cultura, a partir de las tesis planteada por Fritjof Capra (1998) en su teoría de los sistemas, según la cual es necesaria una nueva comprensión científica ...
Leandro Arbey Giraldo Henao
doaj   +1 more source

Animals and philosophers: Preface to my critics [PDF]

open access: yesFilozofija i Društvo, 2009
The author is here seeking to expose his book Philosophical Animal zoographical persuasion to philosophy, to his own remorseless analysis - and that way defend the book from potential criticism by the others.
Krstić Predrag
doaj   +1 more source

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