Results 31 to 40 of about 1,258,966 (356)

An oxidative amidation and heterocyclization approach for the synthesis of β-carbolines and dihydroeudistomin Y

open access: yesBeilstein Journal of Organic Chemistry, 2014
A novel synthetic methodology has been developed for the synthesis of dihydro-β-carboline derivatives employing oxidative amidation–Bischler–Napieralski reaction conditions using tryptamine and 2,2-dibromo-1-phenylethanone as key starting materials.
Suresh Babu Meruva   +4 more
doaj   +1 more source

Synthesis of enantiomerically pure N-(2,3-dihydroxypropyl)arylamides via oxidative esterification

open access: yesBeilstein Journal of Organic Chemistry, 2013
A highly efficient synthesis of enantiomerically pure (S) and (R)-isomers of N-(2,3-dihydroxypropyl)arylamides has been developed with good overall yields in a two step process. The key step involves the ring opening of the chiral epoxide with a nitrogen
Akula Raghunadh   +6 more
doaj   +1 more source

Hybrid contour and geometric partitioning for accurate plantar foot region segmentation [PDF]

open access: yesPeerJ
Background Precise segmentation of plantar foot regions is crucial for analyzing foot structure and pressure distribution, aiding in the diagnosis of pathologies and enabling preventive interventions.
Shumei Zhang   +3 more
doaj   +2 more sources

NATIVE AMERICAN SPIRITUALITY AND NATURAL LANDSCAPE IN N. SCOTT MOMADAY'S POETRY

open access: yesLanguage Literacy: Journal of Linguistics, Literature, and Language Teaching, 2023
Native Americans are the first people to reside in the United States of America, specifically the northern part of it. One of the famous Native American poets is Scott Momaday. Momaday is a Kiowa Native American poet, storywriter, and novelist.
Mustafa Amjed Jasim   +1 more
doaj   +1 more source

Maintaining ethnic identity: Family patron's day among the Serbs in Budapest and surrounding area [PDF]

open access: yesGlasnik Etnografskog Instituta SANU, 2004
Celebration of Family patron's day is very widespread among Serbs in general. The traditional model of celebration suffered many changes, which in practice resulted in many variations in terms of its form.
Prelić Mladena M.
doaj   +1 more source

Customer‐Based Customization and Price Competition*

open access: yesThe Journal of Industrial Economics, 2022
Among the many consequences for production processes, new technologies, including 3D‐printing and web‐based co‐design, provide end‐users with increasingly effective means to locally reshape and co‐produce products to fit their needs, decentralizing part of the production process. But do firms have an incentive to design goods that are self‐customizable
Stefano Colombo, Paolo Garella
openaire   +3 more sources

Effects of cinnamaldehyde on growth performance, serum parameters, ruminal fermentation, and bacterial community in Hu sheep

open access: yesAnimal Nutriomics
A total of 60 healthy lambs were randomly assigned to three treatment groups: control (CON), and groups receiving basal diet (dry matter base) supplemented with 400 mg/kg (CA400) and 800 mg/kg (CA800) of cinnamaldehyde (CA), the CA additive used silicon ...
Deshuang Wei   +6 more
doaj   +1 more source

Qualification of Administrative Practices as a Source for Turkish Tax Law

open access: yesMaliye Çalışmaları Dergisi, 2022
In considering the relationship between positive and normative law, one must determine whether customs, one of the grounds of written law and administrative practices, and the manifestations of customs in practice, would be accepted as a source of law ...
Mehmet Alpertunga Avci
doaj   +1 more source

The Economic and Commercial Situation of Mirjavah in the Second Pahlavi Era [PDF]

open access: yesپژوهش های تاریخی, 2020
: Iran’s eastern borders have historically been one of the country’s most important economic routes, and developments in the region and within the country have had a direct impact on the prosperity and decline of the routes. Mirjavah is one of the cities
Maryam Sheipari, Sedigheh Aghaee
doaj   +1 more source

Investigating the Impact of Train / Test Split Ratio on the Performance of Pre-Trained Models with Custom Datasets

open access: yesInternational Journal of Advanced Computer Science and Applications
—The proper allocation of data between training and testing is a critical factor influencing the performance of deep learning models, especially those built upon pre-trained architectures.
Houda Bichri, A. Chergui, Mustapha Hain
semanticscholar   +1 more source

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