Results 91 to 100 of about 1,804 (199)

Native and alien nymphaeids in a Mediterranean island: distribution and status in Sardinia (Italy)

open access: yesJournal of Limnology
After a long-term monitoring campaign spanning 1999-2025, the populations of Nymphaeids growing in Sardinia were comprehensively investigated. Within the family Nymphaeaceae, Nuphar lutea and Nymphaea alba are native species on the island, while two ...
Francesco Mascia   +3 more
doaj   +1 more source

Real-Time Prediction of Reading Comprehension Levels from Beta-Band EEG Signals Using Kernel Ridge Regression and Principal Component Analysis

open access: yesMachine Learning and Knowledge Extraction
Real-time assessment of reading comprehension remains a challenge in educational research. Traditional evaluation methods, such as questionnaires, provide delayed and retrospective measures and therefore do not capture the dynamic nature of comprehension
Nuphar Avital   +3 more
doaj   +1 more source

A Concise Asymmetric Route to Nuphar Alkaloids. A Formal Synthesis of (−)-Deoxynupharidine

open access: yes, 2003
A stereocontrolled route to Nuphar alkaloids is described that employs a formal [3 + 3] cycloaddition strategy to assemble the piperidine nucleus. The addition of Pd−TMM complexes to aziridine 10 was found to be sluggish; however, the addition of a ...
Joseph P. A. Harrity   +7 more
core   +1 more source

Dearomatization of Heteroarenium Salts with ArBpin Reagents. Application to the Total Synthesis of a Nuphar Alkaloid

open access: yes
Rhodium-catalyzed enantioselective addition of aryl and heteroaryl boron pinacol esters to pyridinium and quinolinium salts is developed for the synthesis of enantioenrichred dihydroheteroarenes.
Rashad R. Karimov (2472985)   +3 more
core   +1 more source

Plasticity of the photosynthetic apparatus in leaves of Nuphar lutea (L.) Smith. heterophyllous plants [PDF]

open access: yes, 2012
Наведено данi щодо ультраструктури хлоропластiв, вмiсту пiгментiв та флуоресценцiї хлорофiлу в придонних, плаваючих та наземних листках Nuphar lutea (L.) Smith.
Сиваш, О.О.   +2 more
core   +2 more sources

Optimizing EEG ICA Decomposition with Machine Learning: A CNN-Based Alternative to EEGLAB for Fast and Scalable Brain Activity Analysis

open access: yesAI
Electroencephalography (EEG) provides excellent temporal resolution for brain activity analysis but limited spatial resolution at the sensors, making source unmixing essential.
Nuphar Avital   +3 more
doaj   +1 more source

When Attention Fails but Grades Do Not: Attentional Vulnerability, AI Compensation, and Resilience in College Students with ADHD

open access: yesEducation Sciences
Attention-Deficit/Hyperactivity Disorder (ADHD) presents substantial challenges in higher education, including elevated mind wandering, difficulties sustaining attention during academic reading, and diminished self-regulatory capacity. Yet, many students
Nuphar Avital   +3 more
doaj   +1 more source

Toward the Synthesis of Nuphar Sesquiterpene Thioalkaloids: Stereodivergent Rhodium-Catalyzed Synthesis of the Thiolane Subunit

open access: yes, 2015
A stereodivergent approach to the central thiolane subunit of Nuphar sesquiterpene thioalkaloids has been developed. This approach features a rhodium-catalyzed Stevens-type rearrangement in conjunction with an enzyme resolution reaction.
Aaron T. Herrmann (1493761)   +2 more
core   +1 more source

Sur le Nuphar luteum

open access: yes, 1877
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

In Vitro and In Vivo Therapeutic Potential of 6,6'-Dihydroxythiobinupharidine (DTBN) from Nuphar lutea on Cells and K18-hACE2 Mice Infected with SARS-CoV-2. [PDF]

open access: yesInt J Mol Sci, 2023
Weiss S   +9 more
europepmc   +1 more source

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