Results 231 to 240 of about 429,197 (329)

Establishing the Positive Definiteness of the Sample Covariance Matrix

The Annals of Mathematical Statistics, 1970
openaire   +3 more sources

The Epistemic Generativity of Using a Model of a Big Idea

Science Education, EarlyView.
ABSTRACT Science instruction should involve learners in generating and warranting ideas, what we call epistemic generation. In modeling instruction, epistemic generation should be achieved by coordinating a model structure with the experienced world in reciprocal directions denoted as developing models and using models. In the former, a model structure
Jonathan T. Shemwell, Daniel K. Capps
wiley   +1 more source

Kadish C/Hyams II Esthesioneuroblastoma With Atypical Immunophenotype Mimicking NK/T-Cell Lymphoma: Endoscope-Assisted Transcranial Resection and Adjuvant Intensity-Modulated Radiotherapy. [PDF]

Cureus
Cuevas Calla CV, González Luna AJ, Vela Moya NC, Castellanos López MA, Conejo Flores G, Marcos Rosas VA.   +5 more
europepmc   +1 more source

The History and Ideas of George Herbert Mead's Pragmatism and Its Relevance for Operational Research and Systems Thinkers

Systems Research and Behavioral Science, EarlyView.
ABSTRACT George Herbert Mead is an oft forgotten or ignored American philosopher who was one of the originators of pragmatism. Today, he is recognised as a creative thinker who has teased out knotty problems that others in the field had not realised were problems. Understanding Mead's analysis has been made difficult because he died prematurely without
Richard Ormerod
wiley   +1 more source

Delay-aware chemotherapy dosing via online critic learning. [PDF]

Sci Rep
Rahimi F, Samadi M.
europepmc   +1 more source

On the existence of a positive definite solution of the matrix equation X+AXA=I [PDF]

, 1989
Jacob Engwerda
openalex  

Numerical Prediction of Deformation‐Induced Martensitic Transformation in Cold‐Sprayed Austenitic Stainless Steel

steel research international, EarlyView.
Cold spray deposition of stainless steel (grade: SS304) is evaluated for marine applications, with emphasis on martensitic transformation during impact. Analytical modeling, simulations, and experiments reveal that helium‐assisted spraying of fine powders promotes cooling below the martensitic start temperature, enabling up to ≈40% austenite to ...
Cal Vin Wong, K. R. Ramkumar, Sougata Roy, Victor K. Champagne, John J. Lee   +4 more
wiley   +1 more source

Hierarchical Beamforming Optimization for ISAC-Enabled RSU Systems in Complex Urban Environments. [PDF]

Sensors (Basel)
You Z, Lv N, Zheng G, Wang X.
europepmc   +1 more source

Flame Retardant Polyolefins Using Fibers From Leather Waste: Adjusting Extrusion Variables to Balance the Property Profile

Journal of Vinyl and Additive Technology, EarlyView.
Adjusting extrusion variables are a key to balance the flame retardancy and mechanical properties of polyolefin/leather waste fiber composites. ABSTRACT The extrusion processing variables represent a key to the optimal use of additives and thus the development of flame‐retardant polymer composites. Adjusting the property profile, for example, finding a
Guadalupe Sanchez‐Olivares, Sven Brehme, Fausto Calderas, Bernhard Schartel   +3 more
wiley   +1 more source

Trajectory tracking and formation control of quadrotor UAVs based on modified super twisting sliding mode method. [PDF]

Sci Rep
Dou J, Wu Y, Xie D, Zhang T.
europepmc   +1 more source