Scientific Reports
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Published on Feb 27, 2019in Scientific Reports 4.12
Martina Pasqua3
Estimated H-index: 3
,
Milena Grossi10
Estimated H-index: 10
+ 4 AuthorsGianni Prosseda16
Estimated H-index: 16
Efflux pumps are membrane protein complexes conserved in all living organisms. Beyond being involved in antibiotic extrusion in several bacteria, efflux pumps are emerging as relevant players in pathogen-host interactions. We have investigated on the possible role of the efflux pump network in Shigella flexneri, the etiological agent of bacillary dysentery. We have found that S. flexneri has retained 14 of the 20 pumps characterized in Escherichia coli and that their expression is differentially...
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Published on Mar 5, 2019in Scientific Reports 4.12
Carlos Leon (Federal Fluminense University), Marcio Costa (Federal Fluminense University)+ 1 AuthorsA. Latgé13
Estimated H-index: 13
(Federal Fluminense University)
We analyze the electronic properties of a hybrid graphene-BN nanoribbon system, using a Hubbard model Hamiltonian within a mean field approximation. Due to the different electronegativities of the boron and nitrogen atoms, an electric field is induced across the zigzag graphene strip, breaking the spin degeneracy of the electronic band structure. Optimal tight-binding parameters are found from first-principles calculations. Edge potentials are proposed as corrections for the on-site energies, mo...
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Published on Jan 10, 2019in Scientific Reports 4.12
Jeong Kuk Park2
Estimated H-index: 2
(Soongsil University),
Yu Jin Han2
Estimated H-index: 2
(Soongsil University)
+ 4 AuthorsSangYoun Park7
Estimated H-index: 7
(Soongsil University)
Human head and body lice attach their eggs respectively to human hair or clothing by female lice secreted glue that hardens into a nit sheath that protects the egg. In this study, a series of experiments were conducted to characterize the glue-like material of the nit sheath. Fourier transform infrared spectroscopy on embryo-cleared nit showed proteinaceous amide I bands. With this result, we determined the amino acid composition of the nit sheath proteins and performed similarity search against...
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Published on Jan 24, 2019in Scientific Reports 4.12
Shuyuan Li5
Estimated H-index: 5
(Fudan University),
Fang Fang24
Estimated H-index: 24
(Karolinska Institutet)
+ 15 AuthorsJinhua Chen
Asymptomatic brain abnormalities are common incidental findings on brain MRI in the elderly population and can be regarded as imaging markers of early stroke and dementia. We initiated the Taizhou Imaging Study (TIS) to examine the prevalence and correlates of incidental findings using brain MRI among an elderly population residing in a rural area of China. A total of 562 individuals, at the age of 55 to 65 years, participated in the TIS study with a response rate of 90%. The prevalence of lacun...
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Published on Mar 4, 2019in Scientific Reports 4.12
Sahar Bakhshian4
Estimated H-index: 4
(University of Texas at Austin),
Seyyed A. Hosseini14
Estimated H-index: 14
(University of Texas at Austin),
Nima Shokri20
Estimated H-index: 20
(University of Manchester)
This study provides a pore-scale investigation of two-phase flow dynamics during primary drainage in a realistic heterogeneous rock sample. Using the lattice Boltzmann (LB) method, a series of three-dimensional (3D) immiscible displacement simulations are conducted and three typical flow patterns are identified and mapped on the capillary number (Ca)-viscosity ratio(M) phase diagram. We then investigate the effect of the viscosity ratio and capillary number on fluid saturation patterns and displ...
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Published on Feb 1, 2019in Scientific Reports 4.12
Dipanjan Podder (Ramakrishna Mission Vivekananda Centenary College), Swapan Kr. Ghosh1
Estimated H-index: 1
(Ramakrishna Mission Vivekananda Centenary College)
Microfungal applications are increasing daily in the medical science. Several species of Trichoderma are widely used in agricultural fields as biological control and plant growth promoting agents. The application of Trichoderma asperellum as an entomopathogenic fungus against the Anopheles mosquito, a vector of malaria, is a novel control approach. Controlling malaria with eco-friendly management practices is an urgent need. We isolated three T. asperellum from different natural sources using se...
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Published on Mar 12, 2019in Scientific Reports 4.12
Maria Seifert4
Estimated H-index: 4
(University of Erlangen-Nuremberg),
Veronika Ludwig2
Estimated H-index: 2
(University of Erlangen-Nuremberg)
+ 9 AuthorsJürgen Mohr18
Estimated H-index: 18
(Karlsruhe Institute of Technology)
Compared to conventional attenuation x-ray radiographic imaging, the x-ray Talbot-Lau technique provides further information about the scattering and the refractive properties of the object in the beam path. Hence, this additional information should improve the diagnostic process concerning medical applications and non-destructive testing. Nevertheless, until now, due to grating fabrication process, Talbot-Lau imaging suffers from small grating sizes (70 mm diameter). This leads to long acquisit...
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Published on Mar 1, 2019in Scientific Reports 4.12
Mitra Kabir1
Estimated H-index: 1
(Manchester Academic Health Science Centre),
Stephanie Wenlock (University of Cambridge)+ 1 AuthorsKathryn E. Hentges13
Estimated H-index: 13
(Manchester Academic Health Science Centre)
During the evolution of multicellular eukaryotes, gene duplication occurs frequently to generate new genes and/or functions. A duplicated gene may have a similar function to its ancestral gene. Therefore, it may be expected that duplicated genes are less likely to be critical for the survival of an organism, since there are multiple copies of the gene rendering each individual copy redundant. In this study, we explored the developmental expression patterns of duplicate gene pairs and the relatio...
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Published on Jan 30, 2019in Scientific Reports 4.12
Maria Kalli3
Estimated H-index: 3
(University of Cyprus),
Angeliki Minia + 3 AuthorsTriantafyllos Stylianopoulos29
Estimated H-index: 29
(University of Cyprus)
Solid stress is a biomechanical abnormality of the tumor microenvironment that plays a crucial role in tumor progression. When it is applied to cancer cells, solid stress hinders their proliferation rate and promotes cancer cell invasion and metastatic potential. However, the underlying mechanisms of how it is implicated in cancer metastasis is not yet fully understood. Here, we used two pancreatic cancer cell lines and an established in vitro system to study the effect of solid stress-induced s...
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Published on Feb 4, 2019in Scientific Reports 4.12
Jean-Pierre Pozzi28
Estimated H-index: 28
(École Normale Supérieure),
Louis Rousseau5
Estimated H-index: 5
+ 6 AuthorsCarlo Tozzi8
Estimated H-index: 8
(University of Pisa)
The study of geomagnetic excursions is key for understanding the behavior of the magnetic field of the Earth. In this paper, we present the geomagnetic record in a 2.29-m-long continuous core sampled in a flowstone in Liguria (Italy) and dated to the Lower Brunhes. The cored flowstone developed from Marine Isotopic Stage (MIS) 13 to MIS 7, according to 21 U-series dates. The mean growth rate is closely related to glacial and interglacial isotopic stages. Magnetic remanence was measured using u-c...
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