Results 21 to 30 of about 11,468,989 (327)

A nonparametric Bayesian continual reassessment method in single-agent dose-finding studies

open access: yesBMC Medical Research Methodology, 2018
Background The main purpose of dose-finding studies in Phase I trial is to estimate maximum tolerated dose (MTD), which is the maximum test dose that can be assigned with an acceptable level of toxicity.
Niansheng Tang, Songjian Wang, Gen Ye
doaj   +1 more source

Explainable features responsible for the high or low spread of SARS-CoV-2: Africa in view

open access: yesScientific African, 2022
The low spread of the global pandemic in Africa has raised concerns. Consequently, many commentators have misconstrued concerns suspecting weather, and immunity to be prime reasons.
Olalekan J. Akintande   +3 more
doaj   +1 more source

Job Expectations and Satisfaction Among Scientists

open access: yesMarketing of Scientific and Research Organizations, 2020
The decreasing supply of qualified people ready to take up employment, observed for several years on the labour market, results in the strengthening of the employee’s position.
Feldy Marzena, Bojko Marta
doaj   +1 more source

ECONOMIC EVALUATION FOR IMPACT OF ENVIRONMENTAL FACTORS ON EGYPTIAN COTTON PRODUCTION [PDF]

open access: yesArab Universities Journal of Agricultural Sciences, 2005
Cotton in Egypt has an important economic situation. Thus the study aimed to evaluate the expected economic effects and productivity of environmental factors on Egyptian cotton production.
M.A. Gad   +3 more
doaj   +1 more source

Statistical analysis of Hasegawa - Wakatani turbulence [PDF]

open access: yes, 2017
Resistive drift wave turbulence is a multipurpose paradigm that can be used to understand transport at the edge of fusion devices. The Hasegawa-Wakatani model captures the essential physics of drift turbulence while retaining the simplicity needed to ...
Anderson, Johan, Hnat, Bogdan
core   +2 more sources

Modern Statistical Methods for GLAST Event Analysis [PDF]

open access: yes, 2007
We describe a statistical reconstruction methodology for the GLAST LAT. The methodology incorporates in detail the statistics of the interactions of photons and charged particles with the tungsten layers in the LAT, and uses the scattering distributions ...
Cohen-Tanugi, Johann, Morris, Robin D.
core   +4 more sources

The evaluation and optimization of the agricultural sustainable development based on a data-driven approach: A case from Northern Anhui

open access: yesHeliyon
The sustainable advancement of agriculture stands as the fundamental cornerstone of sustainable human progress. This study introduces a data-centric methodological framework founded upon the holistic delineation of measurement, feature assessment, and ...
Fengwei Gao   +3 more
doaj   +1 more source

Spatial patterns of fertilizer use and imbalances: Evidence from rice cultivation in India

open access: yesEnvironmental Challenges, 2022
Fertilizer use immensely contributes to sustaining higher crop productivity and ensuring food security around the globe. However, the over-application of nitrogenous fertilizers resulted in negative environmental externalities. Thus, assessing imbalances
Kaushik Bora
doaj   +1 more source

Statistical Analysis of Composite Spectra

open access: yes, 2004
We consider nearest neighbor spacing distributions of composite ensembles of levels. These are obtained by combining independently unfolded sequences of levels containing only few levels each. Two problems arise in the spectral analysis of such data. One
A.Y. Abul-Magd   +42 more
core   +1 more source

Adaptive Differential Privacy Cox-MLP Model Based on Federated Learning

open access: yesMathematics
In the data-driven healthcare sector, balancing privacy protection and model performance is critical. This paper enhances accuracy and reliability in survival analysis by integrating differential privacy, deep learning, and the Cox proportional hazards ...
Jie Niu   +6 more
doaj   +1 more source

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