Zobrazeno 1 - 10
of 444
pro vyhledávání: '"R. Krishna Kumar"'
Autor:
Michael E. Kim, Wayne Franklin, Anne M. Dubin, Jeffrey J. Kim, Shubhayan Sanatani, R. Krishna Kumar, Shubhika Srivastava, Thomas R. Kimball, Mark Lewin, Joseph Rossano, Colin J. McMahon
Publikováno v:
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, Vol 13, Iss 21 (2024)
Background Although the position of a pediatric cardiology chief is often seen as the apex of one's academic career, its roles, responsibilities, and qualifications are not well defined in the literature. This study was done to gain further insight o
Externí odkaz:
https://doaj.org/article/59a163b165c34ceb8f03129dcc731505
Publikováno v:
Journal of Clinical and Diagnostic Research, Vol 18, Iss 03, Pp 03-04 (2024)
A six-year-old female patient with Cornelia de Lange Syndrome (CdLS) presented to the Department of Paediatric and Preventive Dentistry with multiple mutilated teeth and an inability to chew, resulting in low food intake. The patient complained of no
Externí odkaz:
https://doaj.org/article/3894e92098c14c72890aa1e3e2ec53e0
Publikováno v:
Endodontology, Vol 35, Iss 3, Pp 254-261 (2023)
Aim: The aim of the study is to evaluate the chelating effect of chitosan as intracanal lubricant and an irrigant on smear layer removal. Objective: The objective of the study is to compare the effectiveness of smear layer removal with chitosan gel a
Externí odkaz:
https://doaj.org/article/4f8ae39610d942c899e9fd59675328ba
Autor:
S. Harikrishnan, Avinash Mani, Sanjay G, Ashishkumar M, Jaideep Menon, Rajesh G, R. Krishna Kumar, A. George Koshy, Thankachan V. Attacheril, Raju George, Eapen Punnose, S.M. Ashraf, Arun SR, Mohammed Cholakkal, Panniyammakal Jeemon, Stigi Joseph, Unni Govindan, Johny Joseph, Koshy Eapen, Madhu Sreedharan, Anil Kumar, K. Venugopal
Publikováno v:
Indian Heart Journal, Vol 74, Iss 1, Pp 34-39 (2022)
Background: Short term outcomes of patients with pulmonary hypertension are not available from low and middle-income countries including India. Methods: We conducted a prospective study of 2003 patients with pulmonary hypertension, from 50 centres (P
Externí odkaz:
https://doaj.org/article/6ea9dad079a44aa3946797d2d423fcc6
Autor:
M. T. Greenaway, P. Kumaravadivel, J. Wengraf, L. A. Ponomarenko, A. I. Berdyugin, J. Li, J. H. Edgar, R. Krishna Kumar, A. K. Geim, L. Eaves
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021)
Magneto-oscillations have revealed many interesting phenomena in graphene and quantum Hall systems, but they are typically measured at low currents and in equilibrium. Here, the authors report several non-equilibrium quantum effects observed in magne
Externí odkaz:
https://doaj.org/article/1df82ff8d310482793130a1ac46c1b13
Autor:
Anuradha Narayanan, Sruthi Sree Krishnamurthy, Karthika Pandurangan, Bhavatharini Ramakrishnan, Hemamalini Ramajayam, R Krishna Kumar
Publikováno v:
Indian Journal of Ophthalmology, Vol 69, Iss 3, Pp 543-547 (2021)
Purpose: Global trends show a high prevalence of refractive errors among children. The prevalence of vision impairment due to uncorrected refractive errors among school children is increasing and the need for management of other ocular conditions is
Externí odkaz:
https://doaj.org/article/c42cc23dea294f0796980a3ef53b7e90
Autor:
M. Kim, S. G. Xu, A. I. Berdyugin, A. Principi, S. Slizovskiy, N. Xin, P. Kumaravadivel, W. Kuang, M. Hamer, R. Krishna Kumar, R. V. Gorbachev, K. Watanabe, T. Taniguchi, I. V. Grigorieva, V. I. Fal’ko, M. Polini, A. K. Geim
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-6 (2020)
Experimental control of electron-electron interactions in materials is challenging. Here, the authors control the interactions by proximity screening with gate dielectrics of nanometer thickness, revealing qualitative changes in concentration and tem
Externí odkaz:
https://doaj.org/article/08a717a41f394686824cbae14e67e490
Autor:
Sreehari M. Nair, Bistra Zheleva, Adriana Dobrzycka, Peter Hesslein, Rajeev Sadanandan, R. Krishna Kumar
Publikováno v:
Global Heart, Vol 16, Iss 1 (2021)
Background: Congenital heart disease (CHD) has emerged as a leading contributor to infant mortality in many low-and middle-income countries (LMICs). We report early results of a population health program for CHD, implemented in the state of Kerala, I
Externí odkaz:
https://doaj.org/article/0525678f750945298014f6cf57782544
Autor:
S. G. Xu, A. I. Berdyugin, P. Kumaravadivel, F. Guinea, R. Krishna Kumar, D. A. Bandurin, S. V. Morozov, W. Kuang, B. Tsim, S. Liu, J. H. Edgar, I. V. Grigorieva, V. I. Fal’ko, M. Kim, A. K. Geim
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-5 (2019)
The conductivity of marginally-twisted bilayer graphene is predicted to persist in presence of a bandgap-opening interlayer bias, owing to a network of 1D conductive states at domain boundaries. Here, the authors report Aharonov–Bohm oscillations u
Externí odkaz:
https://doaj.org/article/dec1267092ee416ca417926ddd853cc5
Autor:
P. Kumaravadivel, M. T. Greenaway, D. Perello, A. Berdyugin, J. Birkbeck, J. Wengraf, S. Liu, J. H. Edgar, A. K. Geim, L. Eaves, R. Krishna Kumar
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-6 (2019)
Increasing the size of mesoscopic devices based on van der Waals heterostructures triggers additional quantum effects. Here, the authors observe distinct magnetoresistance oscillations in graphene/h-BN Hall bars only in devices wider than 10 μm due
Externí odkaz:
https://doaj.org/article/d35592b5e0114ffda4bc34acc2bfd76a