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Showing 1 to 12 of 430 entries
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Do athermal amorphous solids exist?.

Physical review. E, Statistical, nonlinear, and soft matter physics

Hentschel HG, Karmakar S, Lerner E, Procaccia I.
PMID: 21797296
Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Jun;83(6):061101. doi: 10.1103/PhysRevE.83.061101. Epub 2011 Jun 02.

We study the elastic theory of amorphous solids made of particles with finite range interactions in the thermodynamic limit. For the elastic theory to exist, one requires all the elastic coefficients, linear and nonlinear, to attain a finite thermodynamic...

Sudden Onset, Rapidly Expansile, Cervical Cystic Hygroma in an Adult: A Rare Case with Unusual Presentation and Extensive Review of the Literature.

Case reports in otolaryngology

Dokania V, Rajguru A, Kaur H, Agarwal K, Kanetkar S, Thakur P, Patel F, Shukla D.
PMID: 28630776
Case Rep Otolaryngol. 2017;2017:1061958. doi: 10.1155/2017/1061958. Epub 2017 May 24.

Cystic hygroma (CH) is a benign infiltrative malformation of the lymphatic channels. We report a case of a 28-year-old Indian female who presented with rapidly enlarging right sided neck swelling over the posterior triangle since 5 days. Complete resection...

Corrigendum: Organocatalytic removal of formaldehyde adducts from RNA and DNA bases.

Nature chemistry

Karmakar S, Harcourt EM, Hewings DS, Scherer F, Lovejoy AF, Kurtz DM, Ehrenschwender T, Barandun LJ, Roost C, Alizadeh AA, Kool ET.
PMID: 26587722
Nat Chem. 2015 Dec;7(12):1033. doi: 10.1038/nchem.2401.

No abstract available.

Assembly, Thermodynamics, and Structure of a Two-Wheeled Composite of a Dumbbell-Shaped Molecule and Cylindrical Molecules with Different Edges.

Angewandte Chemie (International ed. in English)

Matsuno T, Kamata S, Sato S, Yokoyama A, Sarkar P, Isobe H.
PMID: 28994189
Angew Chem Int Ed Engl. 2017 Nov 20;56(47):15020-15024. doi: 10.1002/anie.201709442. Epub 2017 Oct 23.

A carbonaceous dumbbell was able to spontaneously glue two tubular receptors to form a unique two-wheeled composite through van der Waals interactions, thus forcing the wheel components into contact with each other at the edges. In the present study,...

Strain Control: Reversible H2 Activation and H2/D2 Exchange in Pt Complexes.

Inorganic chemistry

Bhattacharjee R, Nijamudheen A, Karmakar S, Datta A.
PMID: 26958700
Inorg Chem. 2016 Mar 21;55(6):3023-9. doi: 10.1021/acs.inorgchem.5b02904. Epub 2016 Mar 09.

Experiments have indicated that bulky ligands are required for efficient H2 activation by Pt-Sn complexes. Herein, we unravel the mechanisms for a Pt-Sn complex, Pt(Sn(t)Bu3)2(CN(t)Bu)2 (1a), catalyzed reversible H2 activation. Among a number of Pt-Sn catalysts used to model...

Glass-Like Slow Dynamics in a Colloidal Solid with Multiple Ground States.

The journal of physical chemistry. B

Mondal C, Karmakar S, Sengupta S.
PMID: 25806836
J Phys Chem B. 2015 Aug 27;119(34):10902-10. doi: 10.1021/jp512952u. Epub 2015 Apr 03.

We study the phase-ordering dynamics of a 2D model colloidal solid using molecular dynamics simulations. The colloid particles interact with each other with a Hamaker potential modified by the presence of equatorial "patches" of attractive and repulsive regions. The...

Differential adaptive responses to 1- or 2-day fasting in various mouse tissues revealed by quantitative PCR analysis.

FEBS open bio

Yamamoto J, Kamata S, Miura A, Nagata T, Kainuma R, Ishii I.
PMID: 25973363
FEBS Open Bio. 2015 Apr 24;5:357-68. doi: 10.1016/j.fob.2015.04.012. eCollection 2015.

Dietary or caloric restriction confers various clinical benefits. Short-term fasting of mice is a common experimental procedure that may involve systemic metabolic remodeling, which may significantly affect experimental outputs. This study evaluated adaptive cellular responses after 1- or 2-day...

Compressive Bilateral Filtering.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society

Sugimoto K, Kamata S.
PMID: 26068315
IEEE Trans Image Process. 2015 Nov;24(11):3357-69. doi: 10.1109/TIP.2015.2442916. Epub 2015 Jun 09.

This paper presents an efficient constant-time bilateral filter that produces a near-optimal performance tradeoff between approximate accuracy and computational complexity without any complicated parameter adjustment, called a compressive bilateral filter (CBLF). The constant-time means that the computational complexity is...

Growing length and time scales in glass-forming liquids.

Proceedings of the National Academy of Sciences of the United States of America

Karmakar S, Dasgupta C, Sastry S.
PMID: 19234111
Proc Natl Acad Sci U S A. 2009 Mar 10;106(10):3675-9. doi: 10.1073/pnas.0811082106. Epub 2009 Feb 20.

The glass transition, whereby liquids transform into amorphous solids at low temperatures, is a subject of intense research despite decades of investigation. Explaining the enormous increase in relaxation times of a liquid upon supercooling is essential for understanding the...

Targeting angiogenesis for controlling neuroblastoma.

Journal of oncology

Roy Choudhury S, Karmakar S, Banik NL, Ray SK.
PMID: 21876694
J Oncol. 2012;2012:782020. doi: 10.1155/2012/782020. Epub 2011 Aug 25.

Neuroblastoma, a progressive solid tumor in childhood, continues to be a clinical challenge. It is highly vascular, heterogeneous, and extracranial tumor that originates from neural crest. Angiogenesis, genetic abnormalities, and oncogene amplification are mainly responsible for malignant phenotype of...

N-(4-Hydroxyphenyl) Retinamide Potentiated Anti-tumor Efficacy of Genistein in Human Ewing's Sarcoma Xenografts.

World journal of oncology

Karmakar S, Choudhury SR, Banik NL, Ray SK.
PMID: 21822457
World J Oncol. 2011 Apr;2(2):53-63. doi: 10.4021/wjon301w.

BACKGROUND: Ewing's sarcoma is a pediatric tumor that mainly occurs in soft tissues and bones. New therapeutic strategies are urgently needed for treatment of Ewing's sarcoma. We examined for the first time the efficacy of N-(4-hydroxyphenyl) retinamide (4-HPR) and...

Evidence for plasmid-mediated toxin production inBacillus cereus BIS-59.

World journal of microbiology & biotechnology

Kamat AS, Nair CK.
PMID: 24425413
World J Microbiol Biotechnol. 1992 Mar;8(2):210-1. doi: 10.1007/BF01195851.

A strain ofBacillus cereus, isolated from shrimps pasteurized by radiation, harboured a 7.6MDa plasmid. When cells were cured with Acridine Orange, they still produced the haemolytic toxin but not the non-haemolytic one. The results therefore suggest that the plasmid...

Showing 1 to 12 of 430 entries