Results 91 to 100 of about 5,646,274 (337)

Topological Twistons in Crystalline Polyethylene

open access: yes, 1999
We introduce an alternate model to describe twistons in crystalline polyethylene. The model couples torsional and longitudinal degrees of freedom and appears as an extension of a model that describes only the torsional motion.
Bazeia   +16 more
core   +1 more source

Molecular characterisation of human penile carcinoma and generation of paired epithelial primary cell lines

open access: yesMolecular Oncology, EarlyView.
Generation of two normal and tumour (cancerous) paired human cell lines using an established tissue culture technique and their characterisation is described. Cell lines were characterised at cellular, protein, chromosome and gene expression levels and for HPV status.
Simon Broad   +12 more
wiley   +1 more source

Selenium: a critical chemical element in nano and quantum physics

open access: yesAdvances in Physics: X
Selenium is a chemical element from the chalcogenide group (Oxygen, Sulfur, Selenium and Tellurium), which has been defined as a critical element by the American Physical Society and the Materials Research Society.
G. Guisbiers
doaj   +1 more source

Atomic and molecular structures of positronium, dipositronium and positronium hydride [PDF]

open access: yes, 2011
The three positron based chemical entities, analogous to hydrogen atom, hydrogen molecule and hydride, are drawing increasing attention in the literature. While a lot is known about the binding energies, not much is known about the radii of the atoms and
Raji Heyrovska
core   +1 more source

Rotational Correction on the Morse Potential Through the Pekeris Approximation and Nikiforov-Uvarov Method

open access: yes, 2005
The Nikiforov-Uvarov method is employed to calculate the the Schrodinger equation with a rotation Morse potential. The bound state energy eigenvalues and the corresponding eigenfunction are obtained.
Bag   +15 more
core   +1 more source

Strength through diversity: how cancers thrive when clones cooperate

open access: yesMolecular Oncology, EarlyView.
Intratumor heterogeneity can offer direct benefits to the tumor through cooperation between different clones. In this review, Kuiken et al. discuss existing evidence for clonal cooperativity to identify overarching principles, and highlight how novel technological developments could address remaining open questions.
Marije C. Kuiken   +3 more
wiley   +1 more source

Transfer matrices and lattice fermions at finite density [PDF]

open access: yes, 1999
I discuss the connection between the Hamiltonian and path integral approaches for fermionic fields. I show how the temporal Wilson projection operators appear naturally in a lattice action.
Creutz, Michael
core   +1 more source

Phase diagram of QCD with four quark flavors at finite temperature and baryon density

open access: yes, 2005
We analyze the phase diagram of QCD with four staggered flavors in the (mu, T) plane using a method recently proposed by us. We explore the region T > 0.7 Tc and mu 0.9 Tc and mu < Tc. But, in addition, our method allows us to extend the transition line
Allton   +29 more
core   +1 more source

Microfluidic electro‐viscoelastic manipulation of extracellular vesicles

open access: yesFEBS Open Bio, EarlyView.
The electro‐viscoelastic manipulation as a potential method for separation of particles based on size. The particles introduced as a sheath flow migrate to the channel center under the influence of simultaneously applied electric field and pressure driven flow.
Seyedamirhosein Abdorahimzadeh   +7 more
wiley   +1 more source

Mixed Source Region Signatures inside Magnetic Switchback Patches Inferred by Heavy Ion Diagnostics

open access: yesThe Astrophysical Journal
Since Parker Solar Probe’s (Parker’s) first perihelion pass at the Sun, large-amplitude Alfvén waves grouped in patches have been observed near the Sun throughout the mission.
Yeimy J. Rivera   +15 more
doaj   +1 more source

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