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Electric field induced phase transitions in polymers: a novel mechanism for high speed energy storage.

Physical review letters

Ranjan V, Nardelli MB, Bernholc J.
PMID: 22463575
Phys Rev Lett. 2012 Feb 24;108(8):087802. doi: 10.1103/PhysRevLett.108.087802. Epub 2012 Feb 23.

Using first-principles simulations, we identify the microscopic origin of the nonlinear dielectric response and high energy density of polyvinylidene-fluoride-based polymers as a cooperative transition path that connects nonpolar and polar phases of the system. This path explores a complex...

Electric field induced phase transitions in polymers: a novel mechanism for high speed energy storage.

Physical review letters

Ranjan V, Nardelli MB, Bernholc J.
PMID: 22463575
Phys Rev Lett. 2012 Feb 24;108(8):087802. doi: 10.1103/PhysRevLett.108.087802. Epub 2012 Feb 23.

Using first-principles simulations, we identify the microscopic origin of the nonlinear dielectric response and high energy density of polyvinylidene-fluoride-based polymers as a cooperative transition path that connects nonpolar and polar phases of the system. This path explores a complex...

Differential Histone Acetylation in Sub-Regions of Bed Nucleus of the Stria Terminalis Underlies Fear Consolidation and Extinction.

Psychiatry investigation

Ranjan V, Singh S, Siddiqui SA, Tripathi S, Khan MY, Prakash A.
PMID: 28539954
Psychiatry Investig. 2017 May;14(3):350-359. doi: 10.4306/pi.2017.14.3.350. Epub 2017 May 16.

OBJECTIVE: The hallmark of anxiety disorders is excessive fear. Previous studies have suggested that selective neural projections from Basal nucleus of stria terminalis (BNST) to amygdala and vice-versa precisely control the fear learning process. However the exact mechanism how...

Detecting spins by their fluorescence with a microwave photon counter.

Nature

Albertinale E, Balembois L, Billaud E, Ranjan V, Flanigan D, Schenkel T, Estève D, Vion D, Bertet P, Flurin E.
PMID: 34912088
Nature. 2021 Dec;600(7889):434-438. doi: 10.1038/s41586-021-04076-z. Epub 2021 Dec 15.

Quantum emitters respond to resonant illumination by radiating part of the absorbed energy. A component of this radiation field is phase coherent with the driving tone, whereas another component is incoherent and consists of spontaneously emitted photons, forming the...

Magnetic sensitivity of cryptochrome 4 from a migratory songbird.

Nature

Xu J, Jarocha LE, Zollitsch T, Konowalczyk M, Henbest KB, Richert S, Golesworthy MJ, Schmidt J, Déjean V, Sowood DJC, Bassetto M, Luo J, Walton JR, Fleming J, Wei Y, Pitcher TL, Moise G, Herrmann M, Yin H, Wu H, Bartölke R, Käsehagen SJ, Horst S, Dautaj G, Murton PDF, Gehrckens AS, Chelliah Y, Takahashi JS, Koch KW, Weber S, Solov'yov IA, Xie C, Mackenzie SR, Timmel CR, Mouritsen H, Hore PJ.
PMID: 34163056
Nature. 2021 Jun;594(7864):535-540. doi: 10.1038/s41586-021-03618-9. Epub 2021 Jun 23.

Night-migratory songbirds are remarkably proficient navigators

Mefloquine as a prophylaxis for malaria needs to be revisited.

International journal for parasitology. Drugs and drug resistance

Ahmad SS, Rahi M, Ranjan V, Sharma A.
PMID: 34339933
Int J Parasitol Drugs Drug Resist. 2021 Dec;17:23-26. doi: 10.1016/j.ijpddr.2021.06.003. Epub 2021 Jun 24.

According to WHO, 2019 witnessed 229 million cases of malaria globally, of which Africa accounted for 94% of cases. Early diagnosis and treatment are the basis of malaria management, and the need for good chemoprophylaxis especially for people travelling...

Twenty-three-millisecond electron spin coherence of erbium ions in a natural-abundance crystal.

Science advances

Le Dantec M, Rančić M, Lin S, Billaud E, Ranjan V, Flanigan D, Bertaina S, Chanelière T, Goldner P, Erb A, Liu RB, Estève D, Vion D, Flurin E, Bertet P.
PMID: 34910504
Sci Adv. 2021 Dec 17;7(51):eabj9786. doi: 10.1126/sciadv.abj9786. Epub 2021 Dec 15.

[Figure: see text].

Pulsed electron spin resonance spectroscopy in the Purcell regime.

Journal of magnetic resonance (San Diego, Calif. : 1997)

Ranjan V, Probst S, Albanese B, Doll A, Jacquot O, Flurin E, Heeres R, Vion D, Esteve D, Morton JJL, Bertet P.
PMID: 31837553
J Magn Reson. 2020 Jan;310:106662. doi: 10.1016/j.jmr.2019.106662. Epub 2019 Dec 04.

In EPR, spin relaxation is typically governed by interactions with the lattice or other spins. However, it has recently been shown that given a sufficiently strong spin-resonator coupling and high resonator quality factor, the spontaneous emission of microwave photons...

Twenty-three-millisecond electron spin coherence of erbium ions in a natural-abundance crystal.

Science advances

Le Dantec M, Rančić M, Lin S, Billaud E, Ranjan V, Flanigan D, Bertaina S, Chanelière T, Goldner P, Erb A, Liu RB, Estève D, Vion D, Flurin E, Bertet P.
PMID: 34910504
Sci Adv. 2021 Dec 17;7(51):eabj9786. doi: 10.1126/sciadv.abj9786. Epub 2021 Dec 15.

[Figure: see text].

Strained hexagonal ScN: a material with unusual structural and optical properties.

Physical review letters

Ranjan V, Bellaiche L, Walter EJ.
PMID: 12857167
Phys Rev Lett. 2003 Jun 27;90(25):257602. doi: 10.1103/PhysRevLett.90.257602. Epub 2003 Jun 25.

Local-density approximation calculations are performed to predict properties of compressively strained hexagonal ScN. This material is found to exhibit a large electromechanical response, a structural phase transition from a nonpolar to a polar structure, and a variation of the...

Factors affecting the fate of β-carotene in the human gastrointestinal tract: A narrative review.

International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition

Maurya VK, Singh J, Ranjan V, Gothandam KM, Bohn T, Pareek S.
PMID: 32781911
Int J Vitam Nutr Res. 2020 Aug 12;1-21. doi: 10.1024/0300-9831/a000674. Epub 2020 Aug 12.

No abstract available.

An exhaustive survey of regular peptide conformations using a new metric for backbone handedness (.

PeerJ

Mannige RV.
PMID: 28533975
PeerJ. 2017 May 16;5:e3327. doi: 10.7717/peerj.3327. eCollection 2017.

The Ramachandran plot is important to structural biology as it describes a peptide backbone in the context of its dominant degrees of freedom-the backbone dihedral angles

Showing 1 to 12 of 50 entries