Results 1 to 10 of about 2,532,253 (181)

Identifying Editions of the Ptolemy of Rome Maps (1478/90–1507/08) by Copper Plates Changes [PDF]

open access: goldISPRS International Journal of Geo-Information
Traditionally, it has been considered that the Ptolemaic or classical maps from the four editions of Ptolemy’s Geography published in Rome (1478, 1490, 1507, and 1508) are apparently indistinguishable at first glance because they have been printed from ...
Marcos F. Pavo-López   +1 more
doaj   +2 more sources

Photosynthetic activity and metabolic profiling of bread wheat cultivars contrasting in drought tolerance

open access: yesFrontiers in Plant Science, 2023
The rapid increase in population growth under changing climatic conditions causes drought stress, threatening world food security. The identification of physiological and biochemical traits acting as yield-limiting factors in diverse germplasm is pre ...
Abdul Ghaffar   +14 more
doaj   +2 more sources

Parameter analysis and Reliability Evaluation of Road Traffic Noise Prediction Model for Highway Traffic Noise Evaluation [PDF]

open access: yes대한환경공학회지, 2022
The purpose of this study is to evaluate the reliability of prediction models(KHTN, RLS-90, CRTN, NMPB-08) that are widely used in road traffic noise analysis.
Jewon Yoon   +4 more
doaj   +1 more source

Diurnal variation in atmospheric pressure in Siedlce in 2001-2022 [PDF]

open access: yesActa Scientiarum Polonorum. Formatio Circumiectus, 2023
Aim of the study: Rising and falling atmospheric pressure usually heralds changes in weather conditions such as temperature, air humidity, cloud cover, precipitation, and wind speed.
Elżbieta Radzka   +3 more
doaj   +1 more source

Study of heterosis, combining ability and gene action in brinjal (Solanum melongena L.) landraces of Odisha

open access: yesElectronic Journal of Plant Breeding, 2023
Twenty one F1 crosses resulting from half diallel mating of seven diverse local landraces of brinjal were studied to know the magnitude of heterosis.
Subha Laxmi Mishra1*, Pradyumna Tripathy1, Gouri Shankar Sahu1, Devraj Lenka2, Mihira Kumara Mishra3, Swapan Kumar Tripathy4, Gargi Gautami Padhiary1, Anita Mohanty5 and Swarnalata Das5
doaj   +1 more source

Pyrazolo[4,3-e]tetrazolo[1,5-b][1,2,4]triazine Sulfonamides as Novel Potential Anticancer Agents: Cytotoxic and Genotoxic Activities In Vitro

open access: yesMolecules, 2022
In this paper, we present for the first time the evaluation of cytotoxicity and genotoxicity of de novo synthesized pyrazolo[4,3-e]tetrazolo[1,5-b][1,2,4]triazine sulfonamides MM129, MM130, and MM131 in human tumor cell lines: HeLa, HCT 116, PC-3, and ...
Karol Bukowski   +4 more
doaj   +1 more source

Synthesis, Structural Characterization, and Biological Activity of New Pyrazolo[4,3-e][1,2,4]triazine Acyclonucleosides

open access: yesMolecules, 2020
A series of new pyrazolo[4,3-e][1,2,4]triazine acyclonucleosides 2−5 and 8 were prepared and evaluated for their anticancer activity against human cancer cell lines (MCF-7, K-562) and CDK2/E, as well as Abl protein kinases inhibitors. Lipophilicity
Mariusz Mojzych   +4 more
doaj   +1 more source

Hyper-parameter optimization for support vector machines using stochastic gradient descent and dual coordinate descent

open access: yesEURO Journal on Computational Optimization, 2020
We developed a gradient-based method to optimize the regularization hyper-parameter, C, for support vector machines in a bilevel optimization framework. On the upper level, we optimized the hyper-parameter C to minimize the prediction loss on validation ...
W.e.i. Jiang, Sauleh Siddiqui
doaj  

A Survey on Mixed-Integer Programming Techniques in Bilevel Optimization

open access: yesEURO Journal on Computational Optimization, 2021
Bilevel optimization is a field of mathematical programming in which some variables are constrained to be the solution of another optimization problem. As a consequence, bilevel optimization is able to model hierarchical decision processes.
Thomas Kleinert   +3 more
doaj  

Estructura factorial y fiabilidad del Cyberbullying Questionnaire (CBQ) y su complemento (CBQ-V) en adolescentes ecuatorianos

open access: yesActualidades en Psicología, 2020
Objetivo. Analizar la estructura factorial y la fiabilidad del Cyberbullying Questionnaire (CBQ), que mide la perpetración del cyberbullying, y además medir su complemento, la victimización (CBQ-V) en una muestra de adolescentes tungurahuenses.
Isabel Ramos-Noboa, Sra.   +2 more
doaj   +1 more source

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