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  • 1
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    Charge and spin transport properties of Mo_{2}X_{2} (X = Fe,Co,Ni) molecular contacts (2012)
    American Physical Society (APS)
    Details
    Publication Date: 2012-06-28
    Description: Author(s): A. García-Fuente, V. M. García-Suárez, J. Ferrer, and A. Vega We present a first-principles study of the electronic and transport properties of linear clusters Mo 2 X 2 ( X =Fe ,Co,Ni), formed by two X atoms separated by a nearly nonmagnetic Mo dimer, connected to gold electrodes. Density functional theory, as implemented in the siesta code with the generalized grad... [Phys. Rev. B 85, 224433] Published Wed Jun 27, 2012
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 2
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    Ferromagnetism in Mn-implanted epitaxially grown Ge on Si(100) (2011)
    American Physical Society (APS)
    Details
    Publication Date: 2011-07-30
    Description: Author(s): S. Guchhait, M. Jamil, H. Ohldag, A. Mehta, E. Arenholz, G. Lian, A. LiFatou, D. A. Ferrer, J. T. Markert, L. Colombo, and S. K. Banerjee We have studied ferromagnetism of Mn-implanted epitaxial Ge films on silicon. The Ge films were grown by ultrahigh vacuum chemical vapor deposition using a mixture of germane (GeH 4 ) and methylgermane (CH 3 GeH 3 ) gases with a carbon concentration of less than 1 at. %, and observed surface rms roughness... [Phys. Rev. B 84, 024432] Published Fri Jul 29, 2011
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 3
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    Structure and magnetism of Tm atoms and monolayers on W(110) (2014)
    American Physical Society (APS)
    Details
    Publication Date: 2014-08-26
    Description: Author(s): Corneliu Nistor, Aitor Mugarza, Sebastian Stepanow, Pietro Gambardella, Kurt Kummer, José Luis Diez-Ferrer, David Coffey, César de la Fuente, Miguel Ciria, and José I. Arnaudas We investigated the growth and magnetic properties of Tm atoms and monolayers deposited on a W(110) surface using scanning tunneling microscopy and x-ray magnetic circular and linear dichroism. The equilibrium structure of Tm monolayer films is found to be a strongly distorted hexagonal lattice with... [Phys. Rev. B 90, 064423] Published Mon Aug 25, 2014
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 4
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    Exotic magnetic anisotropy map in epitaxial La_{0.7}Ca_{0.3}MnO_{3} films on BaTiO_{3} (2011)
    American Physical Society (APS)
    Details
    Publication Date: 2011-10-05
    Description: Author(s): A. Alberca, N. M. Nemes, F. J. Mompean, N. Biskup, A. de Andres, C. Munuera, J. Tornos, C. Leon, A. Hernando, P. Ferrer, G. R. Castro, J. Santamaria, and M. Garcia-Hernandez [Phys. Rev. B 84, 134402] Published Tue Oct 04, 2011
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 5
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    Magnetic ordering of implanted Mn in HOPG substrates (2013)
    American Physical Society (APS)
    Details
    Publication Date: 2013-11-28
    Description: Author(s): Samaresh Guchhait, Hendrik Ohldag, Elke Arenholz, Domingo A. Ferrer, Apurva Mehta, and Sanjay K. Banerjee Currently, significant research efforts are geared towards using carbon-based materials for electronic applications. Here we report the observation of magnetic ordering of implanted Mn in HOPG substrates. Superconducting quantum interference device measurements show higher moments for Mn-doped sampl... [Phys. Rev. B 88, 174425] Published Wed Nov 27, 2013
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 6
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    Acetylcholine-synthesizing T cells relay neural signals in a vagus nerve circuit (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-17
    Description: Neural circuits regulate cytokine production to prevent potentially damaging inflammation. A prototypical vagus nerve circuit, the inflammatory reflex, inhibits tumor necrosis factor-alpha production in spleen by a mechanism requiring acetylcholine signaling through the alpha7 nicotinic acetylcholine receptor expressed on cytokine-producing macrophages. Nerve fibers in spleen lack the enzymatic machinery necessary for acetylcholine production; therefore, how does this neural circuit terminate in cholinergic signaling? We identified an acetylcholine-producing, memory phenotype T cell population in mice that is integral to the inflammatory reflex. These acetylcholine-producing T cells are required for inhibition of cytokine production by vagus nerve stimulation. Thus, action potentials originating in the vagus nerve regulate T cells, which in turn produce the neurotransmitter, acetylcholine, required to control innate immune responses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4548937/" 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/PMC4548937/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosas-Ballina, Mauricio -- Olofsson, Peder S -- Ochani, Mahendar -- Valdes-Ferrer, Sergio I -- Levine, Yaakov A -- Reardon, Colin -- Tusche, Michael W -- Pavlov, Valentin A -- Andersson, Ulf -- Chavan, Sangeeta -- Mak, Tak W -- Tracey, Kevin J -- R01 GM057226/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Oct 7;334(6052):98-101. doi: 10.1126/science.1209985. Epub 2011 Sep 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, 350 Community Drive, Manhasset, New York 11030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21921156" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholine/*biosynthesis ; Action Potentials ; Animals ; CD4-Positive T-Lymphocytes/*immunology/*metabolism ; Choline O-Acetyltransferase/metabolism ; Cholinergic Agents/metabolism ; Female ; *Immunity, Innate ; Immunologic Memory ; Inflammation ; Lymphocyte Activation ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; *Neuroimmunomodulation ; Norepinephrine/pharmacology ; Receptors, Nicotinic/metabolism ; Signal Transduction ; Spleen/immunology/innervation/metabolism ; T-Lymphocyte Subsets/immunology/metabolism ; Tumor Necrosis Factor-alpha/blood ; Vagus Nerve/*physiology ; Vagus Nerve Stimulation ; alpha7 Nicotinic Acetylcholine Receptor
    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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  • 7
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    Differences between tight and loose cultures: a 33-nation study (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-05-28
    Description: With data from 33 nations, we illustrate the differences between cultures that are tight (have many strong norms and a low tolerance of deviant behavior) versus loose (have weak social norms and a high tolerance of deviant behavior). Tightness-looseness is part of a complex, loosely integrated multilevel system that comprises distal ecological and historical threats (e.g., high population density, resource scarcity, a history of territorial conflict, and disease and environmental threats), broad versus narrow socialization in societal institutions (e.g., autocracy, media regulations), the strength of everyday recurring situations, and micro-level psychological affordances (e.g., prevention self-guides, high regulatory strength, need for structure). This research advances knowledge that can foster cross-cultural understanding in a world of increasing global interdependence and has implications for modeling cultural change.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gelfand, Michele J -- Raver, Jana L -- Nishii, Lisa -- Leslie, Lisa M -- Lun, Janetta -- Lim, Beng Chong -- Duan, Lili -- Almaliach, Assaf -- Ang, Soon -- Arnadottir, Jakobina -- Aycan, Zeynep -- Boehnke, Klaus -- Boski, Pawel -- Cabecinhas, Rosa -- Chan, Darius -- Chhokar, Jagdeep -- D'Amato, Alessia -- Ferrer, Montse -- Fischlmayr, Iris C -- Fischer, Ronald -- Fulop, Marta -- Georgas, James -- Kashima, Emiko S -- Kashima, Yoshishima -- Kim, Kibum -- Lempereur, Alain -- Marquez, Patricia -- Othman, Rozhan -- Overlaet, Bert -- Panagiotopoulou, Penny -- Peltzer, Karl -- Perez-Florizno, Lorena R -- Ponomarenko, Larisa -- Realo, Anu -- Schei, Vidar -- Schmitt, Manfred -- Smith, Peter B -- Soomro, Nazar -- Szabo, Erna -- Taveesin, Nalinee -- Toyama, Midori -- Van de Vliert, Evert -- Vohra, Naharika -- Ward, Colleen -- Yamaguchi, Susumu -- New York, N.Y. -- Science. 2011 May 27;332(6033):1100-4. doi: 10.1126/science.1197754.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, University of Maryland, College Park, MD 20742, USA. mgelfand@psyc.umd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21617077" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; *Behavior ; *Cross-Cultural Comparison ; *Cultural Characteristics ; Female ; Government ; Humans ; Male ; Permissiveness ; Political Systems ; Population Density ; *Social Behavior ; *Social Conformity ; Social Control, Formal ; *Social Values ; Young Adult
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Novel role of PKR in inflammasome activation and HMGB1 release (2012)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2012-07-18
    Description: The inflammasome regulates the release of caspase activation-dependent cytokines, including interleukin (IL)-1beta, IL-18 and high-mobility group box 1 (HMGB1). By studying HMGB1 release mechanisms, here we identify a role for double-stranded RNA-dependent protein kinase (PKR, also known as EIF2AK2) in inflammasome activation. Exposure of macrophages to inflammasome agonists induced PKR autophosphorylation. PKR inactivation by genetic deletion or pharmacological inhibition severely impaired inflammasome activation in response to double-stranded RNA, ATP, monosodium urate, adjuvant aluminium, rotenone, live Escherichia coli, anthrax lethal toxin, DNA transfection and Salmonella typhimurium infection. PKR deficiency significantly inhibited the secretion of IL-1beta, IL-18 and HMGB1 in E. coli-induced peritonitis. PKR physically interacts with several inflammasome components, including NOD-like receptor (NLR) family pyrin domain-containing 3 (NLRP3), NLRP1, NLR family CARD domain-containing protein 4 (NLRC4), absent in melanoma 2 (AIM2), and broadly regulates inflammasome activation. PKR autophosphorylation in a cell-free system with recombinant NLRP3, apoptosis-associated speck-like protein containing a CARD (ASC, also known as PYCARD) and pro-caspase-1 reconstitutes inflammasome activity. These results show a crucial role for PKR in inflammasome activation, and indicate that it should be possible to pharmacologically target this molecule to treat inflammation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4163918/" 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/PMC4163918/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lu, Ben -- Nakamura, Takahisa -- Inouye, Karen -- Li, Jianhua -- Tang, Yiting -- Lundback, Peter -- Valdes-Ferrer, Sergio I -- Olofsson, Peder S -- Kalb, Thomas -- Roth, Jesse -- Zou, Yongrui -- Erlandsson-Harris, Helena -- Yang, Huan -- Ting, Jenny P-Y -- Wang, Haichao -- Andersson, Ulf -- Antoine, Daniel J -- Chavan, Sangeeta S -- Hotamisligil, Gokhan S -- Tracey, Kevin J -- DK052539/DK/NIDDK NIH HHS/ -- G0700654/Medical Research Council/United Kingdom -- R01 DK052539/DK/NIDDK NIH HHS/ -- R01 GM057226/GM/NIGMS NIH HHS/ -- R01 GM062508/GM/NIGMS NIH HHS/ -- R01 GM62508/GM/NIGMS NIH HHS/ -- England -- Nature. 2012 Aug 30;488(7413):670-4. doi: 10.1038/nature11290.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, 350 Community Drive, Manhasset, New York 11030, USA. blu@nshs.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22801494" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/metabolism ; Adenosine Triphosphate/pharmacology ; Animals ; Antigens, Bacterial/pharmacology ; Apoptosis Regulatory Proteins/metabolism ; Bacterial Toxins/pharmacology ; CARD Signaling Adaptor Proteins/metabolism ; Calcium-Binding Proteins/metabolism ; Carrier Proteins/metabolism ; Cell Line ; Cells, Cultured ; Crystallins/metabolism ; Escherichia coli/immunology/physiology ; Escherichia coli Infections/immunology/metabolism ; Female ; HMGB1 Protein/blood/*secretion ; Humans ; Inflammasomes/agonists/*metabolism ; Interleukin-18/blood ; Interleukin-1beta/blood ; Interleukin-6/analysis/blood ; Macrophages, Peritoneal/drug effects/metabolism ; Male ; Membrane Proteins/metabolism ; Mice ; Mice, Inbred C57BL ; Peritonitis/metabolism ; Phosphorylation ; RNA, Double-Stranded/immunology/pharmacology ; Rotenone/pharmacology ; Salmonella Infections/immunology/metabolism ; Salmonella typhimurium/immunology/physiology ; Transfection ; Uric Acid/pharmacology ; eIF-2 Kinase/antagonists & inhibitors/deficiency/genetics/*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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  • 9
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    Long non-coding antisense RNA controls Uchl1 translation through an embedded SINEB2 repeat (2012)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2012-10-16
    Description: Most of the mammalian genome is transcribed. This generates a vast repertoire of transcripts that includes protein-coding messenger RNAs, long non-coding RNAs (lncRNAs) and repetitive sequences, such as SINEs (short interspersed nuclear elements). A large percentage of ncRNAs are nuclear-enriched with unknown function. Antisense lncRNAs may form sense-antisense pairs by pairing with a protein-coding gene on the opposite strand to regulate epigenetic silencing, transcription and mRNA stability. Here we identify a nuclear-enriched lncRNA antisense to mouse ubiquitin carboxy-terminal hydrolase L1 (Uchl1), a gene involved in brain function and neurodegenerative diseases. Antisense Uchl1 increases UCHL1 protein synthesis at a post-transcriptional level, hereby identifying a new functional class of lncRNAs. Antisense Uchl1 activity depends on the presence of a 5' overlapping sequence and an embedded inverted SINEB2 element. These features are shared by other natural antisense transcripts and can confer regulatory activity to an artificial antisense to green fluorescent protein. Antisense Uchl1 function is under the control of stress signalling pathways, as mTORC1 inhibition by rapamycin causes an increase in UCHL1 protein that is associated to the shuttling of antisense Uchl1 RNA from the nucleus to the cytoplasm. Antisense Uchl1 RNA is then required for the association of the overlapping sense protein-coding mRNA to active polysomes for translation. These data reveal another layer of gene expression control at the post-transcriptional level.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carrieri, Claudia -- Cimatti, Laura -- Biagioli, Marta -- Beugnet, Anne -- Zucchelli, Silvia -- Fedele, Stefania -- Pesce, Elisa -- Ferrer, Isidre -- Collavin, Licio -- Santoro, Claudio -- Forrest, Alistair R R -- Carninci, Piero -- Biffo, Stefano -- Stupka, Elia -- Gustincich, Stefano -- England -- Nature. 2012 Nov 15;491(7424):454-7. doi: 10.1038/nature11508. Epub 2012 Oct 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Area of Neuroscience, International School for Advanced Studies (SISSA), via Bonomea 265, 34136 Trieste, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23064229" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Bacterial Agents/pharmacology ; Cell Line ; Humans ; Male ; Mice ; Protein Biosynthesis/drug effects/*genetics ; RNA, Antisense/genetics/*metabolism ; Sequence Inversion ; Short Interspersed Nucleotide Elements/*genetics ; Sirolimus/pharmacology ; Ubiquitin Thiolesterase/*genetics/*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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