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  • 1
    Language: English
    In: Physical review letters, 27 April 2012, Vol.108(17), pp.176803
    Description: The properties of the entanglement entropy (EE) in one-dimensional disordered interacting systems are studied. Anderson localization leaves a clear signature on the average EE, as it saturates on the length scale exceeding the localization length. This is verified by numerically calculating the EE for an ensemble of disordered realizations using the density matrix renormalization group method. A heuristic expression describing the dependence of the EE on the localization length, which takes into account finite-size effects, is proposed. This is used to extract the localization length as a function of the interaction strength. The localization length dependence on the interaction fits nicely with the expectations.
    Keywords: Condensed Matter - Mesoscale And Nanoscale Physics ; Condensed Matter - Strongly Correlated Electrons ; Quantum Physics;
    ISSN: 00319007
    E-ISSN: 1079-7114
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  • 2
    Language: English
    In: Physical review letters, 13 November 2015, Vol.115(20), pp.206401
    Description: A fermionic disordered one-dimensional wire in the presence of attractive interactions is known to have two distinct phases, a localized and superconducting, depending on the strength of interaction and disorder. The localized region may also exhibit a metallic behavior if the system size is shorter than the localization length. Here we show that the superconducting phase has a distribution of the entanglement entropy distinct from the metallic regime. The entanglement entropy distribution is strongly asymmetric with a Lévy α-stable distribution (compared to the Gaussian metallic distribution), as is seen also for the second Rényi entropy distribution. Thus, entanglement properties may reveal properties which cannot be detected by other methods.
    Keywords: Condensed Matter - Mesoscale And Nanoscale Physics ; Condensed Matter - Strongly Correlated Electrons;
    ISSN: 00319007
    E-ISSN: 1079-7114
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  • 3
    Language: English
    In: Physical Review B, 5/2014, Vol.89(20)
    Description: The properties of the entanglement entropy (EE) of low-lying excitations in one-dimensional disordered interacting systems are studied. The ground state EE shows a clear signature of localization, while low-lying excitation shows a crossover from metallic behavior at short sample sizes to localized at longer length. The dependence of the crossover as function of interaction strength and sample length is studied using the density matrix renormalization group (DMRG). This behavior corresponds to the presence of the predicted many particle critical energy in the vicinity of the Fermi energy. Implications of these results to experiments are discussed. Comment: 5 pages, 5 figures some references were added
    Keywords: Condensed Matter - Mesoscale And Nanoscale Physics ; Condensed Matter - Strongly Correlated Electrons;
    ISSN: 1098-0121
    E-ISSN: 1550-235X
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  • 4
    Language: English
    In: Physical Review B, 2/2013, Vol.87(7)
    Description: The properties of the entanglement entropy (EE) of two particle excited states in a one-dimensional ring are studied. For a clean system we show analytically that as long as the momenta of the two particles are not close, the EE is twice the value of the EE of any single particle state. For almost identical momenta the EE is lower than this value. The introduction of disorder is numerically shown to lead to a decrease in the median EE of a two particle excited state, while interactions (which have no effect for the clean case) mitigate the decrease. For a ring which is of the same size as the localization length, interaction increase the EE of a typical two particle excited state above the clean system EE value. Comment: 6 pages, 4 figures, accepted for publication in PRB
    Keywords: Condensed Matter - Mesoscale And Nanoscale Physics ; Condensed Matter - Strongly Correlated Electrons ; Quantum Physics;
    ISSN: 1098-0121
    E-ISSN: 1550-235X
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  • 5
    In: Nature, 2015
    Description: About half of human genes use alternative cleavage and polyadenylation (ApA) to generate messenger RNA transcripts that differ in the length of their 3' untranslated regions (3' UTRs) while producing the same protein. Here we show in human cell lines that alternative 3' UTRs differentially regulate the localization of membrane proteins. The long 3' UTR of CD47 enables efficient cell surface expression of CD47 protein, whereas the short 3' UTR primarily localizes CD47 protein to the endoplasmic reticulum. CD47 protein localization occurs post-translationally and independently of RNA localization. In our model of 3' UTR-dependent protein localization, the long 3' UTR of CD47 acts as a scaffold to recruit a protein complex containing the RNA-binding protein HuR (also known as ELAVL1) and SET to the site of translation. This facilitates interaction of SET with the newly translated cytoplasmic domains of CD47 and results in subsequent translocation of CD47 to the plasma membrane via activated RAC1 (ref. 5). We also show that CD47 protein has different functions depending on whether it was generated by the short or long 3' UTR isoforms. Thus, ApA contributes to the functional diversity of the proteome without changing the amino acid sequence. 3' UTR-dependent protein localization has the potential to be a widespread trafficking mechanism for membrane proteins because HuR binds to thousands of mRNAs, and we show that the long 3' UTRs of CD44, ITGA1 and TNFRSF13C, which are bound by HuR, increase surface protein expression compared to their corresponding short 3' UTRs. We propose that during translation the scaffold function of 3' UTRs facilitates binding of proteins to nascent proteins to direct their transport or function--and this role of 3' UTRs can be regulated by ApA.
    Keywords: 3' Untranslated Regions -- Genetics ; Cd47 Antigen -- Genetics ; Membrane Proteins -- Metabolism ; RNA Isoforms -- Genetics;
    ISSN: 0028-0836
    E-ISSN: 1476-4687
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  • 6
    Language: English
    In: Shofar, 1 July 2013, Vol.31(4), pp.4-15
    Description: Abstract Eliezer Berkovits's views on the status of women within Judaism are an outgrowth of his philosophy of the nature and function of halakah. He believed that Torat Hayyim, a living Torah, must speak to the unique needs of each particular generation and that human beings must take an active role in shaping that Torah. Berkovits's interest in the status of women did not stem from any particular affinity to feminism and the modern woman's cause. Rather, he sensed that this problem was the issue of the day facing traditional Judaism. Berkovits was unwilling to say that halakah has no answers for the contemporary woman. For him to do so would be to admit that Torah is morally deficient and not eternally valid or relevant and would constitute an affront to God's name. His belief in the power of the halakic system and his desire to defend the moral dignity of God's law spurred him, as a legal authority, to address women's spiritual, religious, and ritual needs in the modern day.
    Keywords: Religion -- Theology -- Practical theology ; Behavioral sciences -- Anthropology -- Ethnology ; Behavioral sciences -- Anthropology -- Ethnology ; Religion -- Theology -- Practical theology ; Biological sciences -- Biology -- Physiology ; Behavioral sciences -- Anthropology -- Ethnology ; Philosophy -- Applied philosophy -- Philosophy of science ; Behavioral sciences -- Human behavior -- Social behavior ; Religion -- Spiritual belief systems -- Communications media ; Social sciences -- Communications -- Practical theology ; Religion -- Theology -- Ethnology ; Behavioral sciences -- Anthropology -- Ethnology ; Behavioral sciences -- Anthropology -- Practical theology ; Religion -- Theology -- Physiology ; Biological sciences -- Biology -- Ethnology ; Behavioral sciences -- Anthropology -- Philosophy of science ; Philosophy -- Applied philosophy -- Social behavior ; Behavioral sciences -- Human behavior -- Communications media ; Religion -- Spiritual belief systems -- Communications media ; Social sciences -- Communications -- Communications media;
    ISSN: 08828539
    E-ISSN: 15345165
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  • 7
    In: Journal of Intellectual Disability Research, August 2014, Vol.58(8), pp.765-776
    Description: Background Social difficulties are closely linked to emotion dysregulation among children with typical development (TD). Children with developmental delays (DD) are at risk for poor social outcomes, but the relationship between social and emotional development within this population is not well understood. The current study examines the extent to which emotion dysregulation is related to social problems across middle childhood among children with TD or DD. Method Children with TD (IQ≥85, n=113) and children with DD (IQ≤75, n=61) participated in a longitudinal study. Annual assessments were completed at ages 7, 8 and 9 years. At each assessment, mothers reported on children's emotion dysregulation, and both mothers and teachers reported on children's social difficulties. Results Children with DD had higher levels of emotion dysregulation and social problems at each age than those with TD. Emotion dysregulation and social problems were significantly positively correlated within both TD and DD groups using mother report of social problems, and within the TD group using teacher report of social problems. Among children with TD, emotion dysregulation consistently predicted change in social problems from one year to the next. However, among children with DD, emotion dysregulation offered no unique prediction value above and beyond current social problems. Conclusions Results suggested that the influence of emotion regulation abilities on social development may be a less salient pathway for children with DD. These children may have more influences, beyond emotion regulation, on their social behaviour, highlighting the importance of directly targeting social skill deficits among children with DD in order to ameliorate their social difficulties. [PUBLICATION ]
    Keywords: Developmental Trajectory ; Emotion Dysregulation ; Intellectual Disability ; Middle Childhood ; Social Competence ; Social Problems
    ISSN: 0964-2633
    E-ISSN: 1365-2788
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  • 8
    Article
    Article
    In: Anesthesia & Analgesia, 2010, Vol.110(5), pp.1510-1510
    Keywords: Intubation, Intratracheal -- Instrumentation ; Larynx -- Anatomy & Histology;
    ISSN: 0003-2999
    E-ISSN: 15267598
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  • 9
    Language: English
    In: Grantee Submission, 2017, Vol.47, p.68
    Description: There has been little research connecting underlying emotion processes (e.g., emotion regulation) to frequent behavior problems in young children with autism spectrum disorder (ASD). This study examined the stability of emotion regulation and...
    Keywords: Emotional Response ; Emotional Development ; Behavior Problems ; Young Children ; Autism ; Pervasive Developmental Disorders ; Symptoms (Individual Disorders) ; Cognitive Ability ; Language Skills ; Interpersonal Competence ; Correlation ; Intelligence Quotient ; Observation ; Diagnostic Tests ; Intelligence Tests ; Cognitive Development ; Check Lists ; Child Behavior
    ISSN: 01623257
    E-ISSN: 15733432
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  • 10
    Language: English
    In: Journal of High Energy Physics, 2015, Vol.2015(7), p.1(20)
    Description: Byline: Nathan Berkovits (1) Keywords: Superstrings and Heterotic Strings; BRST Symmetry Abstract: The pure spinor formalism for the superstring was recently obtained by gauge-fixing a purely bosonic classical action involving a twistor-like constraint ax .sup.m(I[sup.3] .sub.m [lambda]).sub.[alpha] = 0 where [lambda] .sup.[alpha] is a d=10 pure spinor. This twistor-like constraint replaces the usual Virasoro constraint ax .sup.m ax .sub.m = 0, and the Green-Schwarz fermionic spacetime spinor variables I[cedilla] .sup.[alpha] arise as Faddeev-Popov ghosts for this constraint. In this paper, the purely bosonic classical action is simplified by replacing the classical d=10 pure spinor [lambda] .sup.[alpha] with a d=10 projective pure spinor. The pure spinor and Green-Schwarz formalisms for the superparticle and superstring are then obtained as different gauge-fixings of this purely bosonic classical action, and the Green-Schwarz kappa symmetry is directly related to the pure spinor BRST symmetry. Since a d=10 projective pure spinor parameterizes 〈![CDATA[ ]]〉 SO 10 U 5 〈![CDATA[ ]]〉 SO/(10)U(5) , this action can be interpreted as a standard A=5 topological action where one integrates over the 〈![CDATA[ ]]〉 SO 10 U 5 〈![CDATA[ ]]〉 SO/(10)U(5) choice of complex structure. Finally, a purely bosonic action for the d=11 supermembrane is proposed which reduces upon double-dimensional reduction to the purely bosonic action for the d=10 Type IIA superstring. Author Affiliation: (1) ICTP South American Institute for Fundamental Research, Instituto de Fisica Teorica, UNESP -- Universidade Estadual Paulista, Rua Dr. Bento T. Ferraz 271, 01140-070, Sao Paulo, SP, Brasil Article History: Registration Date: 20/07/2015 Received Date: 18/05/2015 Accepted Date: 29/06/2015 Online Date: 20/07/2015 Article note: ArXiv ePrint: 1503.03080
    ISSN: 1029-8479
    Source: Cengage Learning, Inc.
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