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  • 1
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    Dynamics of electro-optical switching in the antiferroelectricB2phase of an achiral bent-core shape compound (2003)
    American Physical Society
    Details
    Publication Date: 2003-02-26
    Print ISSN: 1063-651X
    Electronic ISSN: 1095-3787
    Topics: Physics
    Published by American Physical Society
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  • 2
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    The fruit of competition: seed dispersal by Magellanic Woodpeckers in the threatened Valdivian Rainforest (2018)
    Wiley
    In: Ecology
    Details
    Publication Date: 2018
    Description: Ecology, Volume 99, Issue 11, Page 2617-2620, November 2018.
    Print ISSN: 0012-9658
    Electronic ISSN: 1939-9170
    Topics: Biology
    Published by Wiley on behalf of The Ecological Society of America (ESA).
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  • 3
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    Studies of Adsorption of Heavy Metals onto Spent Coffee Ground: Equilibrium, Regeneration, and Dynamic Performance in a Fixed-Bed Column (2016)
    Hindawi
    Details
    Publication Date: 2016-06-06
    Description: Equilibrium and dynamic adsorption of heavy metals onto spent coffee ground (SCG) were studied. The equilibrium adsorption of Cd2+, Cu2+, and Pb2+ in a batch system was modeled by an ion-exchange model (IEM) based on an ion-exchange of heavy metals with calcium and protons bonded to active sites on SCG surface. The maximum amount of adsorbed metal ions obtained using the IEM was 0.12, 0.21, and 0.32 mmol/g of Cd2+, Cu2+, and Pb2+, respectively. Regeneration of SCG was evaluated using citric acid, calcium chloride, and nitric acid. The observed trend of desorption efficiency through four adsorption-desorption cycles was HNO3 〉 CaCl2 〉 C6H8O7. The effect of process variables such as flow rate and bed height during the dynamic adsorption was evaluated. Moreover, the applicability of a mass transfer model based on external mass transfer resistance, axial dispersion, and ion-exchange isotherm was evaluated, and the results were in good agreement with the experimental data for the adsorption in SCG packed column. The sensitivity analysis of the model parameters showed that axial dispersion coefficient is the most significant parameter in the dynamic simulation. The results obtained showed the potential of SCG as a low-cost material for wastewater metal removal in continuous systems.
    Print ISSN: 1687-806X
    Electronic ISSN: 1687-8078
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Published by Hindawi
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  • 4
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    Statistical Similarity between the Compression of a Porous Material and Earthquakes (2013)
    American Physical Society (APS)
    Details
    Publication Date: 2013-02-20
    Description: Author(s): Jordi Baró, Álvaro Corral, Xavier Illa, Antoni Planes, Ekhard K. H. Salje, Wilfried Schranz, Daniel E. Soto-Parra, and Eduard Vives It has long been stated that there are profound analogies between fracture experiments and earthquakes; however, few works attempt a complete characterization of the parallels between these so separate phenomena. We study the acoustic emission events produced during the compression of Vycor (SiO 2 ). ... [Phys. Rev. Lett. 110, 088702] Published Tue Feb 19, 2013
    Keywords: Soft Matter, Biological, and Interdisciplinary Physics
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
    Published by American Physical Society (APS)
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  • 5
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    Causal approach for the electron-positron scattering in generalized quantum electrodynamics (2014)
    American Physical Society (APS)
    Details
    Publication Date: 2014-10-15
    Description: Author(s): R. Bufalo, B. M. Pimentel, and D. E. Soto In this paper we study the generalized electrodynamics contribution to the electron-positron scattering process e-e+→e-e+, i.e., Bhabha scattering. Within the framework of the standard model and for energies larger than the electron mass, we calculate the cross section for the scattering process. Th... [Phys. Rev. D 90, 085012] Published Tue Oct 14, 2014
    Keywords: Field Theory, Formal Particle Theory
    Print ISSN: 0556-2821
    Electronic ISSN: 1089-4918
    Topics: Physics
    Published by American Physical Society (APS)
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  • 6
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    Orally delivered siRNA targeting macrophage Map4k4 suppresses systemic inflammation (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-05-02
    Description: Gene silencing by double-stranded RNA, denoted RNA interference, represents a new paradigm for rational drug design. However, the transformative therapeutic potential of short interfering RNA (siRNA) has been stymied by a key obstacle-safe delivery to specified target cells in vivo. Macrophages are particularly attractive targets for RNA interference therapy because they promote pathogenic inflammatory responses in diseases such as rheumatoid arthritis, atherosclerosis, inflammatory bowel disease and diabetes. Here we report the engineering of beta1,3-D-glucan-encapsulated siRNA particles (GeRPs) as efficient oral delivery vehicles that potently silence genes in mouse macrophages in vitro and in vivo. Oral gavage of mice with GeRPs containing as little as 20 microg kg(-1) siRNA directed against tumour necrosis factor alpha (Tnf-alpha) depleted its messenger RNA in macrophages recovered from the peritoneum, spleen, liver and lung, and lowered serum Tnf-alpha levels. Screening with GeRPs for inflammation genes revealed that the mitogen-activated protein kinase kinase kinase kinase 4 (Map4k4) is a previously unknown mediator of cytokine expression. Importantly, silencing Map4k4 in macrophages in vivo protected mice from lipopolysaccharide-induced lethality by inhibiting Tnf-alpha and interleukin-1beta production. This technology defines a new strategy for oral delivery of siRNA to attenuate inflammatory responses in human disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2879154/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2879154/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aouadi, Myriam -- Tesz, Gregory J -- Nicoloro, Sarah M -- Wang, Mengxi -- Chouinard, My -- Soto, Ernesto -- Ostroff, Gary R -- Czech, Michael P -- DK 30898/DK/NIDDK NIH HHS/ -- DK 32520/DK/NIDDK NIH HHS/ -- DK 60837/DK/NIDDK NIH HHS/ -- P30 DK032520/DK/NIDDK NIH HHS/ -- P30 DK032520-25/DK/NIDDK NIH HHS/ -- R01 DK030898/DK/NIDDK NIH HHS/ -- R01 DK030898-26/DK/NIDDK NIH HHS/ -- R01 DK060837/DK/NIDDK NIH HHS/ -- R01 DK060837-01A1/DK/NIDDK NIH HHS/ -- R37 DK030898/DK/NIDDK NIH HHS/ -- England -- Nature. 2009 Apr 30;458(7242):1180-4. doi: 10.1038/nature07774.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19407801" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Oral ; Animals ; *Drug Delivery Systems ; Enzyme Activation/drug effects ; *Gene Silencing ; Glucans/metabolism ; Inflammation/genetics/*prevention & control ; Interleukin-1beta/biosynthesis ; JNK Mitogen-Activated Protein Kinases/metabolism ; Lipopolysaccharides/pharmacology ; MAP Kinase Signaling System/drug effects ; Macrophages/drug effects/*metabolism ; Male ; Mice ; Mice, Inbred C57BL ; NF-kappa B/metabolism ; Organ Specificity ; Protein-Serine-Threonine Kinases/*deficiency/*genetics/metabolism ; RNA, Small Interfering/*administration & dosage/genetics/metabolism ; Substrate Specificity ; Tumor Necrosis Factor-alpha/biosynthesis/metabolism ; p38 Mitogen-Activated Protein Kinases/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 7
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    HIV-1 Langerhans' cell tropism associated with heterosexual transmission of HIV (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-03-01
    Description: Heterosexual transmission by vaginal intercourse accounts for most transmission of human immunodeficiency virus-type 1 (HIV-1) in Africa and Asia but is less important in the HIV-1 epidemics of the United States and Western Europe. Epithelial Langerhans' cells (LCs) represent a possible source of initial cell contact for vaginal infection. Fifteen primary isolates of HIV-1 from U.S. homosexuals and 18 HIV-1 isolates from Thailand heterosexuals were evaluated for growth in LCs of U.S. origin. All the viruses from the Thai heterosexuals, which were subtype E, grew more efficiently in the LCs than any of the viruses from the U.S. homosexuals, which are subtype B. These results suggest that LC tropism is associated with the efficiency of heterosexual transmission of HIV.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soto-Ramirez, L E -- Renjifo, B -- McLane, M F -- Marlink, R -- O'Hara, C -- Sutthent, R -- Wasi, C -- Vithayasai, P -- Vithayasai, V -- Apichartpiyakul, C -- Auewarakul, P -- Pena Cruz, V -- Chui, D S -- Osathanondh, R -- Mayer, K -- Lee, T H -- Essex, M -- 5 D43 TW0004/TW/FIC NIH HHS/ -- CA 39805/CA/NCI NIH HHS/ -- HL 33774/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1996 Mar 1;271(5253):1291-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Harvard AIDS Institute, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8638113" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Cells, Cultured ; HIV Core Protein p24/analysis ; HIV Infections/*transmission/virology ; HIV-1/classification/*growth & development/isolation & purification ; Homosexuality, Male ; Humans ; Langerhans Cells/*virology ; Macrophages/virology ; Male ; Monocytes/virology ; *Sexual Behavior ; Sexually Transmitted Diseases, Viral/*transmission/virology ; T-Lymphocytes/virology ; Thailand ; United States ; Virus Replication
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 8
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    HIV/AIDS in Latin America (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-07-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soto-Ramirez, Luis E -- New York, N.Y. -- Science. 2008 Jul 25;321(5888):465. doi: 10.1126/science.1162896.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18653849" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/epidemiology/prevention & control ; Anti-HIV Agents/supply & distribution/*therapeutic use ; Caribbean Region/epidemiology ; Disease Outbreaks ; *HIV Infections/drug therapy/epidemiology/prevention & control ; Health Services Accessibility ; Humans ; Latin America/epidemiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 9
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    Single-cell tracking of flavivirus RNA uncovers species-specific interactions with the immune system dictating disease outcome (2017)
    Springer Nature
    Details
    Publication Date: 2017-03-15
    Description: Single-cell tracking of flavivirus RNA uncovers species-specific interactions with the immune system dictating disease outcome Nature Communications, Published online: 14 March 2017; doi:10.1038/ncomms14781 Analysis of virus replication on a single-cell level is often hampered by a lack of specific or sensitive enough reagents. Here, Douam et al . use RNA-flow technique to track (+) and (−) strand RNA of yellow fever virus in hematopoietic cells in mouse models and identify virus-host interactions that affect disease outcome.
    Electronic ISSN: 2041-1723
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 10
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    Symmetry, Vol. 11, Pages 1167: Fast Finger Vein Recognition Based on Sparse Matching Algorithm under a Multicore Platform for Real-Time Individuals Identification (2019)
    MDPI
    In: Symmetry
    Details
    Publication Date: 2019
    Description: Nowadays, individual identification is a problem in many private companies, but also in governmental and public order entities. Currently, there are multiple biometric methods, each with different advantages. Finger vein recognition is a modern biometric technique, which has several advantages, especially in terms of security and accuracy. However, image deformations and time efficiency are two of the major limitations of state-of-the-art contributions. In spite of affine transformations produced during the acquisition process, the geometric structure of finger vein images remains invariant. This consideration of the symmetry phenomena presented in finger vein images is exploited in the present work. We combine an image enhancement procedure, the DAISY descriptor, and an optimized Coarse-to-fine PatchMatch (CPM) algorithm under a multicore parallel platform, to develop a fast finger vein recognition method for real-time individuals identification. Our proposal provides an effective and efficient technique to obtain the displacement between finger vein images and considering it as discriminatory information. Experimental results on two well-known databases, PolyU and SDUMLA, show that our proposed approach achieves results comparable to deformation-based techniques of the state-of-the-art, finding statistical differences respect to non-deformation-based approaches. Moreover, our method highly outperforms the baseline method in time efficiency.
    Electronic ISSN: 2073-8994
    Topics: Mathematics
    Published by MDPI
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