Results 221 to 230 of about 369,824 (381)

A cytotoxic survey on 2‐amino‐1H‐imidazol based synthetic marine sponge alkaloid analogues

Drug Development Research, Volume 83, Issue 8, Page 1906-1922, December 2022., 2022
Abstract Here, we describe the synthesis and biologic activity evaluation of 20 novel synthetic marine sponge alkaloid analogues with 2‐amino‐1H‐imidazol (2‐AI) core. Cytotoxicity was tested on murine 4T1 breast cancer, A549 human lung cancer, and HL‐60 human myeloid leukemia cells by the resazurin assay.
Nikolett Gémes, Zsófia Makra, Patrícia Neuperger, Enikő Szabó, József Á. Balog, Lili Borbála Flink, Beáta Kari, László Hackler Jr, László. G. Puskás, Iván Kanizsai, Gábor J. Szebeni   +10 more
wiley   +1 more source

A proof of the compactness theorem for arithmetical classes [PDF]

, 1952
Helena Rasiowa
openalex   +1 more source

“Visiting scientist effect”? Exploring the impact of time‐lags in the digitization of 2D landmark data

The Anatomical Record, EarlyView.
Abstract Measurement error (ME) in geometric morphometrics has been the subject of countless articles, but none specific to the effect of time lags on landmark digitization error. Yet, especially for visiting scientists working on museum collections, it is not uncommon to collect data in multiple rounds, with interruptions of weeks or years. To explore
Andrea Cardini
wiley   +1 more source

How do positive and negative emotions influence children's and adolescents' arithmetic performance? [PDF]

PLoS One
Viesel-Nordmeyer N, Lemaire P.
europepmc   +1 more source

Arithmetic of Orthogonal Groups. [PDF]

, 1955
Takashi Ono
openalex   +1 more source

Inter‐microscope comparability of dental microwear texture data obtained from different optical profilometers: Part II Deriving instrument‐specific correction equations for meta‐analyses using published data

The Anatomical Record, EarlyView.
Abstract Dental microwear texture analysis (DMTA) has emerged as a valuable method for investigating the feeding ecology of vertebrates. Over the past decade, three‐dimensional topographic data from microscopic regions of tooth surfaces have been collected, and surface texture parameters have been published for both extant and fossil species.
Mugino O. Kubo, T. Kubo, Ellen Schulz‐Kornas, T. M. Kaiser, Daniela E. Winkler   +4 more
wiley   +1 more source

Tablet-based arithmetic fluency assessment reveals developments in math cognition and math achievement from childhood to adolescence. [PDF]

NPJ Sci Learn
Roy E, Guillaume M, Van Rinsveld A, Project iLead Consortium, McCandliss BD.   +4 more
europepmc   +1 more source

Hilbert’s characteristic function and the arithmetic genus of an algebraic variety [PDF]

, 1950
H. T. Muhly, Oscar Zariski
openalex   +1 more source

The relationship between form and function of the carnivore mandible

The Anatomical Record, EarlyView.
Abstract Dietary morphology diversified extensively in Carnivoraformes (living Carnivora and their stem relatives) during the Cenozoic (the last 66 million years) as they evolved to capture, handle, and process new animal and plant diets. We used 3D geometric morphometrics, mechanical advantage, and finite element analysis to test the evolutionary ...
Charles J. Salcido, P. David Polly
wiley   +1 more source

Semantic Arithmetic Coding Using Synonymous Mappings. [PDF]

Entropy (Basel)
Liang Z, Niu K, Xu J, Zhang P.
europepmc   +1 more source