Results 211 to 220 of about 334,043 (330)

Elucidating the Three‐Dimensional Structure of Piracetam through Rotational Spectroscopy

ChemistryOpen, EarlyView.
Neutral molecules of the nootropic drug piracetam are generated by laser ablation and structurally characterized by microwave spectroscopy. Two conformers differing in the exo/endo configuration of the pyrrolidine ring are detected, with exo being the predominant form.
S. Mato, S. Municio, J. L. Alonso, E. R. Alonso, I. León   +4 more
wiley   +1 more source

Novel 3D UAV Path Planning for IoT Services Based on Interactive Cylindrical Vector Teaching-Learning Optimization Algorithm. [PDF]

Sensors (Basel)
Jiang X, Wu X, Zhang Z, Hong Z, Xiao X, Feng Y.   +5 more
europepmc   +1 more source

Challenges in Mechanistic Investigation of a Flexible Aminocatalyst as Demonstrated through Enamine Formation

ChemistryOpen, EarlyView.
The enamine formation catalyzed by a flexible asymmetric tripeptide is studied computationally. The catalyst's ability to reorganize plays a crucial role, enabling the reaction and providing multiple pathways for its occurrence. Furthermore, issues related to conformational search, method selection, and model system choices are discussed.
Irina Osadchuk, Tõnis Kanger
wiley   +1 more source

Automated Microsolvation for Minimum Energy Path Construction in Solution. [PDF]

J Chem Theory Comput
Türtscher PL, Reiher M.
europepmc   +1 more source

Quantifying Molecular Properties of Hexagonal Water Clusters

ChemistryOpen, EarlyView.
Standard quantum chemical calculations on large hexagonal water clusters allow us to analyze the fundamental properties of ice‐Ih. Computed geometrical structure, energies, and vibrational spectra are astonishingly close to experimental data without the introduction of any external empirical parameters.
Giuseppe Lanza
wiley   +1 more source

A Testing and Evaluation Framework for Indoor Navigation and Positioning Systems. [PDF]

Sensors (Basel)
Zhang Z, Wang Q, Wang W, Feng M, Guo L.
europepmc   +1 more source

Bioinformatics‐Based Comparative Analysis of the Human Retina Proteome

PROTEOMICS – Clinical Applications, EarlyView.
ABSTRACT Introduction The human retina relies on a complex network of proteins, many of which exhibit intrinsic disorder and liquid‐liquid phase separation (LLPS), enabling dynamic interactions for retinal function. Disruptions in these properties, along with missense mutations, have been linked to retinal diseases.
Colin K. Kim, Mak B. Djulbegovic, David Broytman, Nedym Hadzijahic, Michael Antonietti, David J. Taylor Gonzalez, Vladimir N. Uversky, Nicolas A. Yannuzzi, Carol L. Karp   +8 more
wiley   +1 more source

Expansion of stereotactic work envelope using transformation matrices and geometric algebra for neurosurgery. [PDF]

Biomed Eng Lett
Sharaf B, Lewis S, Choung D, Goyal A, Scheitler KM, Hong LS, Blaha CD, Hanna B, Chang K, Yuen J, Oh Y, Shin H, Grewal S, Chang JW, Miller K, Lee KH.   +15 more
europepmc   +1 more source

Anticlastic Curvature and Material Freedom

physica status solidi (b), EarlyView.
Anticlastic curvature occurs in bent bars for positive Poisson's ratio; synclastic curvature occurs for negative Poisson's ratio provided the material is homogeneous and elastic. Some planar negative Poisson's ratio materials exhibit anticlastic saddle curvature rather than convex curvature in bending due to effects of 3D structure.
Roderic Lakes
wiley   +1 more source

Evaluating proximal ulnar morphology in relation to the humeral flexion-extension axis. [PDF]

JSES Int
Minnaert C, Herregodts J, Herregodts S, De Wilde L, Van Tongel A.   +4 more
europepmc   +1 more source