cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Class-preserving automorphisms of finite $p$-groups II
Creators: name: Yadav, Manoj K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: Let $G$ be a finite group minimally generated by $d(G)$ elements and $\Aut_c(G)$ denote the group of all (conjugacy) class-preserving automorphisms of $G$. Continuing our work [Class preserving automorphisms of finite $p$-groups, J. London Math. Soc. \textbf{75(3)} (2007), 755-772], we study finite $p$-groups $G$ such that $|\Aut_c(G)| = |γ_2(G)|^{d(G)}$, where $γ_2(G)$ denotes the commutator subgroup of $G$. If $G$ is such a $p$-group of class $2$, then we show that $d(G)$ is even, $2d(γ_2(G)) \le d(G)$ and $G/\Z(G)$ is homocyclic. When the nilpotency class of $G$ is larger than $2$, we obtain the following (surprising) results: (i) $d(G) = 2$. (ii) If $|γ_2(G)/γ_3(G)| > 2$, then $|\Aut_c(G)| = |γ_2(G)|^{d(G)}$ if and only if $G$ is a $2$-generator group with cyclic commutator subgroup, where $γ_3(G)$ denotes the third term in the lower central series of $G$. (iii) If $|γ_2(G)/γ_3(G)| = 2$, then $|\Aut_c(G)| = |γ_2(G)|^{d(G)}$ if and only if $G$ is a $2$-generator $2$-group of nilpotency class $3$ with elementary abelian commutator subgroup of order at most $8$. As an application, we classify finite nilpotent groups $G$ such that the central quotient $G/\Z(G)$ of $G$ by it's center $\Z(G)$ is of the largest possible order. For proving these results, we introduce a generalization of Camina groups and obtain some interesting results. We use Lie theoretic techniques and computer algebra system `Magma' as tools.
description: 30 pages
Quantum phases of attractive bosons on a Bose-Hubbard ladder with three-body constraint
Creators: name: Singh, Manpreet
name: Mishra, Tapan
name: Pai, Ramesh V.
name: Das, B. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We obtain the complete quantum phase diagram of bosons on a two-leg ladder in the presence of attractive onsite and repulsive interchain nearest-neighbor interactions by imposing the onsite three-body constraint. We find three distinct phases; namely, the atomic superfluid (ASF), dimer superfluid (DSF), and the dimer rung insulator (DRI). In the absence of the interchain nearest-neighbor repulsion, the system exhibits a transition from the ASF to the DSF phase with increasing onsite attraction. However, the presence of the interchain nearest-neighbor repulsion stabilizes a gapped DRI phase, which is flanked by the DSF phase. We also obtain the phase diagram of the system for different values of the interchain nearest-neighbor interaction. By evaluating different order parameters, we obtain the complete phase diagram and the properties of the phase transitions using the self-consistent cluster mean-field theory.
description: 9 pages, 15 figures
On the real-time evolution of pseudo-entropy in 2d CFTs
Creators: name: Guo, Wu-zhong
name: He, Song
name: Zhang, Yu-Xuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work, we study the real-time evolution of pseudo-(Rényi) entropy, a generalization of entanglement entropy, in two-dimensional conformal field theories (CFTs). We focus on states obtained by acting primary operators located at different space points or their linear combinations on the vacuum. We show the similarities and differences between the pseudo-(Rényi) entropy and entanglement entropy. For excitation by a single primary operator, we analyze the behaviors of the 2nd pseudo-Rényi entropy in various limits and find some symmetries associated with the subsystem and the positions of the insertion operators. For excitation by linear combinations, the late time limit of the $n$th pseudo-Rényi entropy shows a simple form related to the coefficients of the combinations and Rényi entropy of the operators, which can be derived by using the Schmidt decomposition. Further, we find two kinds of particular spatial configurations of insertion operators in one of which the pseudo-(Rényi) entropy remains real throughout the time evolution.
description: 34 pages, 7 figures, 1 table v2: typos corrected, references added
Results and Future Plans on Central Exclusive Production with the LHCb Detector
Creators: name: McNulty, Ronan
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The LHCb detector and LHC running conditions are ideally suited to measuring central exclusive production. Several recent measurements of exclusive dimuon, single and double charmonia are reviewed. The potential for future measurements across a broad range of physics channels is discussed.
description: Invited contribution to a special edition of the International Journal of Modern Physics A (IJMPA) devoted to Central Exclusive Production in Hadron Collisions
The Contributions of Managed Care Plans to Public Health Practice: Evidence from the Nation's Largest Local Health Departments
Creators: name: Mays, Glen P.
name: Stevens, Rachel
name: Halverson, Paul K.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2001

description: OBJECTIVE: The authors examine the extent and nature of managed care plans participating in local public health activities.

METHODS: In 1998, the authors surveyed the directors of all US local health departments serving jurisdictions of at least 100,000 residents to collect information about public health activities performed in their jurisdictions and about organizations participating in the activities. Multivariate logistic and linear regression models were used to examine organizational and market characteristics associated with managed care plan participation in public health activities.

RESULTS: Managed care plans were reported to participate in public health activities in 164 (46%) of the jurisdictions surveyed, and to contribute to 13% of the public health activities performed in the average jurisdiction. Plans appeared most likely to participate in public health activities involving the delivery or management of personal health services and the exchange of health-related information. Managed care participation was more likely to occur in jurisdictions with higher HMO penetration, fewer competing plans, and larger proportions of plans enrolling Medicaid recipients. Participation was positively associated with the overall scope and perceived effectiveness of local public health activities.

CONCLUSIONS: Although plans participate in a narrow range of activities, these contributions may complement the work of public health agencies.
State-resolved infrared spectrum of the protonated water dimer: Revisiting the characteristic proton transfer doublet peak
Creators: name: Larsson, Henrik R.
name: Schröder, Markus
name: Beckmann, Richard
name: Brieuc, Fabien
name: Schran, Christoph
name: Marx, Dominik
name: Vendrell, Oriol
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The infrared (IR) spectra of protonated water clusters encode precise information on the dynamics and structure of the hydrated proton. However, the strong anharmonic coupling and quantum effects of these elusive species remain puzzling up to the present day. Here, we report unequivocal evidence that the interplay between the proton transfer and the water wagging motions in the protonated water dimer (Zundel ion) giving rise to the characteristic doublet peak is both more complex and more sensitive to subtle energetic changes than previously thought. In particular, hitherto overlooked low-intensity satellite peaks in the experimental spectrum are now unveiled and mechanistically assigned. Our findings rely on the comparison of IR spectra obtained using two highly accurate potential energy surfaces in conjunction with highly accurate state-resolved quantum simulations. We demonstrate that these high-accuracy simulations are important for providing definite assignments of the complex IR signals of fluxional molecules.
Trust and collaboration in the prevention of sexually transmitted diseases
Creators: name: Thomas, James C
name: Ellis, Hattie
name: Earp, Jo Anne
name: Eng, Eugenia
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2001

description: High rates of sexually transmitted diseases (STDs) are sustained in communities by a relatively small group of people, referred to as the core of transmission. Definitions of the core vary but inevitably include people who are socially marginalized and who distrust people in authority, such as public health practitioners and university researchers. Having an effect on a marginalized group usually depends on effective collaboration with people they trust. Researchers from the University of North Carolina School of Public Health developed a trust-based collaboration with community members of a rural county in North Carolina to implement an STD prevention program that, in turn, relied on trust in local social networks. As part of the STD prevention demonstration project, the research team established a community resource group made up of local African Americans who helped design, implement, and evaluate the intervention. The group identified 21 women to whom others in the community turned for advice on sex and STDs. These women were trained as lay health advisors to disseminate information and skills for preventing STDs among their social networks. Through face-to-face structured interviews before and after the intervention, the authors measured improvements in STD treatment and prevention behaviors. The proportion of people practicing each of the targeted behaviors improved during the evaluation period. In addition to disseminating information through their own social networks, the lay health advisors demonstrated new skills and a desire to interact with local care providers to influence the provision of care for STDs for low-income African Americans in this county. Each participant in the collaboration played a role in establishing or building upon trust with others. These trusting relationships were critical for empowering a marginalized group at high risk for STDs.
AA-stacked bilayer graphene in an applied electric field: Tunable antiferromagnetism and coexisting exciton order parameter
Creators: name: Akzyanov, R. S.
name: Sboychakov, A. O.
name: Rozhkov, A. V.
name: Rakhmanov, A. L.
name: Nori, F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the electronic properties of AA-stacked bilayer graphene in a transverse electric field. The strong on-site Coulomb repulsion stabilizes the antiferromagnetic order in such a system. The antiferromagnetic order is suppressed by the transverse bias voltage, at least partially. The inter-plane Coulomb repulsion and non-zero voltage stabilize an exciton order parameter. The exciton order parameter coexists with the antiferromagnetism and can be as large as several tens of meV for realistic values of the bias voltage and interaction constants. The application of a transverse bias voltage can be used to control the transport properties of the bilayer.
description: 8 pages, 6 figures
Time-dependent modeling of extended thin decretion disks of critically rotating stars
Creators: name: Kurfürst, Petr
name: Feldmeier, Achim
name: Krtička, Jiří
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: During their evolution massive stars can reach the phase of critical rotation when a further increase in rotational speed is no longer possible. Direct centrifugal ejection from a critically or near-critically rotating surface forms a gaseous equatorial decretion disk. Anomalous viscosity provides the efficient mechanism for transporting the angular momentum outwards. The outer part of the disk can extend up to a very large distance from the parent star. We study the evolution of density, radial and azimuthal velocity, and angular momentum loss rate of equatorial decretion disks out to very distant regions. We investigate how the physical characteristics of the disk depend on the distribution of temperature and viscosity. We calculated stationary models using the Newton-Raphson method. For time-dependent hydrodynamic modeling we developed the numerical code based on an explicit finite difference scheme on an Eulerian grid including full Navier-Stokes shear viscosity. The sonic point distance and the maximum angular momentum loss rate strongly depend on the temperature profile and are almost independent of viscosity. The rotational velocity at large radii rapidly drops accordingly to temperature and viscosity distribution. The total amount of disk mass and the disk angular momentum increase with decreasing temperature and viscosity. The time-dependent one-dimensional models basically confirm the results obtained in the stationary models as well as the assumptions of the analytical approximations. Including full Navier-Stokes viscosity we systematically avoid the rotational velocity sign change at large radii. The unphysical drop of the rotational velocity and angular momentum loss at large radii (present in some models) can be avoided in the models with decreasing temperature and viscosity.
Las bibliotecas son una fuente laboral para los bibliotecólogos
Creators: name: Ramírez Vera, Rosa
Publisher: name: Zenodo
Year: 2023
Subjects: bibliotecólogos, Biblioteca escolar, campo laboral, perfil profesional

description: Trabajo de grado para optar al Título Profesional de Bibliotecólogo(a) y Grado Académico de Licenciado/a en Bibliotecología y Gestión de la información.
Early-time light curves of Type Ib/c supernovae from the SDSS-II Supernova Survey
Creators: name: Taddia, F.
name: Sollerman, J.
name: Leloudas, G.
name: Stritzinger, M. D.
name: Valenti, S.
name: Galbany, L.
name: Kessler, R.
name: Schneider, D. P.
name: Wheeler, J. C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We analyse the early-time optical light curves (LCs) of 20 Type Ib/c supernovae (SNe Ib/c) from the Sloan Digital Sky Survey (SDSS) SN survey II, aiming to study their properties as well as to derive their progenitor parameters. High-cadence, multi-band LCs are fitted with a functional model and the best-fit parameters are compared among the SN types. Bolometric LCs (BLCs) are constructed for the entire sample. We computed the black-body (BB) temperature (T_BB) and photospheric radius (R_ph) evolution for each SN via BB fits on the spectral energy distributions. In addition, the BLC properties are compared to model expectations. Complementing our sample with literature data, we find that SNe Ic and Ic-BL (broad-line) have shorter rise times than those of SNe Ib and IIb. Δm_15 is similar among the different sub-types. SNe Ic appear brighter and bluer than SNe Ib, but this difference vanishes if we consider host galaxy extinction corrections based on colors. Our SNe have typical T_BB ~ 10000 K at peak, and R_ph ~ 10^15 cm. Analysis of the BLCs of SNe Ib and Ic gives typical ejecta masses M_ej = 3.6-5.7 M_sun, energies E_K = 1.5-1.7x10^51 erg, and M(^56Ni) = 0.3 M_sun. Higher values for E_K and M(^56Ni) are estimated for SNe Ic-BL (M_ej = 5.4 M_sun, E_K = 10.7x10^51 erg, M(^56Ni) = 1.1 M_sun). For the majority of SNe Ic and Ic-BL we can put strong limits (<2-4 days) on the duration of the expected early-time plateau. In the case of SN Ib 2006lc, a >5.9 days plateau seems to be detected. The rising part of the BLCs is reproduced by power laws with index <2. For two SNe we a possible shock break-out cooling tail. Based on the limits for the plateau length and on the slow rise of the BLCs, we find that in most of our SNe Ic and Ic-BL the ^56Ni is mixed up to the outer layers, suggesting that SN Ic progenitors are de facto helium poor.
description: Replaced to match the accepted version. The abstract was shortened by 30% to fit the arXiv limits
Responding to racial and ethnic disparities in use of HIV drugs: analysis of state policies
Creators: name: Shriver, Michael D
name: Kahn, James G
name: Palacio, Herminia
name: Richards, T.Anne
name: Sengupta, Sohini
name: Cozen, Myrna
name: Morin, Stephen F
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: OBJECTIVES: The objectives of this study were to assess racial/ethnic trends in surveillance data in four states--California, New York, Florida and Texas, identify structural barriers to and facilitators of access to HIV pharmaceuticals by individuals in Medicaid and the AIDS Drug Assistance Program (ADAP), and identify treatment education and outreach efforts responding to the needs of ethnic minority HIV patients. METHODS: State surveillance and claims data were used to assess trends by race/ethnicity in AIDS cases and mortality as well as participation rates in Medicaid and ADAP. Key informant interviews with state program administrators and local clinic-based benefit eligibility workers were used to identify social and policy barriers to and facilitators of access to HIV drugs and state strategies for overcoming racial/ethnic disparities. RESULTS: Racial/ethnic disparities in the reduction of AIDS-related mortality were identified in three of the four states studied. Policy barriers included Medicaid requirements for legal immigration status and residency, limits on Medicaid eligibility based on disability requirements, and state-imposed income and benefit limits on ADAP. Social barriers to accessing AIDS medications included lack of information, distrust of government, and HIV-related stigma. State strategies for overcoming disparities included contracting with community-based organizations for treatment education and outreach, the use of regional minority coordinators, and public information campaigns. CONCLUSIONS: State policies play a significant role in determining access to HIV drugs, and state policies can be used to reduce racial/ethnic disparities in pharmaceutical access. Overall, eliminating racial/ethnic disparities in access to HIV pharmaceuticals appears to be an achievable goal.
The Arecibo Galaxy Environment Survey (AGES) XI: the expanded Abell 1367 field. Data catalogue and HI census over the surveyed volume
Creators: name: Deshev, Boris
name: Taylor, Rhys
name: Minchin, Robert
name: Scott, Tom C.
name: Brinks, Elias
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Many galaxy properties are known to correlate with the environment in which the galaxies are embedded. Their cold, neutral gas content, usually assessed through 21cm HI observations, is related to many other galaxy properties as it is the underlying fuel for star formation. With its high sensitivity and broad sky coverage the blind Arecibo Galaxy Environment Survey (AGES) survey brings significant improvement to the census of HI properties of galaxies in a wide range of environments, from voids to the core of a massive cluster. Here we present an HI census over a volume of ~44000 Mpc$^{3}$ towards the merging cluster Abell 1367 and the large-scale structure (LSS) surrounding the cluster out to cz = 20000 km/s. The survey is sensitive down to a column density of N$_{HI}$ = 1.5 x 10$^{17}$ cm$^{-2}$ for emission filling the beam and a line width of 10 km/s. As an approximate mass sensitivity limit, a member of A1367 (at a distance of 92 Mpc), containing M$_{HI}$ = 2.7x10$^{8}$ M$_{\odot}$ distributed over a top-hat profile of 50 km/s width would be detected at 4$σ$. The results are analysed in combination with optical spectroscopy data from SDSS which we use to estimate the local galaxy density based on the Voronoi-Delaunay method. In total we detect 457 HI sources, 213 of which are detected for the first time by the AGES survey, 134 of which are presented in this article for the first time. 225 of the detections are in the cluster and 232 in the remaining volume surveyed. Here we present the full catalogue of HI detections and their basic properties, including optical ones. We concentrate on the difference between the cluster and the foreground and background LSS, revealing a continuous correlation of HI detected fraction (and HI deficiency) with local galaxy density, independent of global environment.
description: A&A accepted. 18 pages, 9 figures, 6 page appendix
Variation in wing and tail moult intensity in white-chinned Petrels
Creators: name: Adekola, Oluwadunsin
name: Ryan, Peter
Publisher: name: Zenodo
Year: 2025
Subjects: moult pattern
Procellaria aequinoctialis
primaries
secondaries
rectrices
White-chinned Petrel

description: The cost of moult is substantial, and the timing and intensity of flight feather moult can influence survival and fitness, especially in large, long-winged species such as many seabirds. We explore variation in wing and tail moult in > 2400 White-chinned Petrels Procellaria aequinoctialis killed in fisheries off southern Africa to assess how they integrate moult into their annual cycle and whether wing moult impacts their behaviour at sea. All petrels showed a simple descendent primary moult and one active moult centre, although moult of P2-3 sometimes started before P1. The Underhill‐Zucchini moult model estimated that adult primary moult started after breeding on 7 May (± 8 days SD) and lasted 103 days (mean end date 20 August ± 10 days). Adult moult was particularly intense in the inner primaries, growing up to six feathers at once. Secondary moult started two weeks after primary moult, once 3–4 primaries had been dropped. Secondary moult typically started with the innermost secondaries, plus inward waves from S1 and S5 in 2.7 ± 1.3 active moult centres, replacing 4.6 ± 2.7 (1–13) secondaries at once. Adults had more intense secondary moult than immatures. However, photographs of non-moulting birds at sea show that 27% of birds do not replace all secondaries each year. Tail moult usually commenced with the start of secondary moult and was highly variable, with 1–12 rectrices growing at once. Although adult wing moult was intense, there was no marked reduction in flight activity among breeding adults fitted with leg-mounted activity loggers during the moult period. Our findings largely accord with previous studies of moult in petrels, but our large sample size reveals considerable variation among individuals, which is surprising given the high cost of moult. Future studies should attempt to investigate the factors determining this variation.
description: Funding provided by: National Research FoundationROR ID: https://ror.org/05s0g1g46Award Number: 110950
Funding provided by: University of Cape TownROR ID: https://ror.org/03p74gp79Award Number:
Funding provided by: African-German Network of Excellence in ScienceCrossref Funder Registry ID: Award Number:
Funding provided by: National Research FoundationROR ID: https://ror.org/05s0g1g46Award Number: 132907
A Listeria monocytogenes ST2 clone lacking chitinase ChiB from an outbreak of non-invasive gastroenteritis
Creators: name: Halbedel, Sven
name: Prager, Rita
name: Banerji, Sangeeta
name: Kleta, Sylvia
name: Trost, Eva
name: Nishanth, Gopala
name: Alles, Georg
name: Hölzel, Christina
name: Schlesiger, Friederike
name: Pietzka, Ariane
name: Schlüter, Dirk
name: Flieger, Antje
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: An outbreak with a remarkable Listeria monocytogenes clone causing 163 cases of non-invasive listeriosis occurred in Germany in 2015. Core genome multi locus sequence typing grouped non-invasive outbreak isolates and isolates obtained from related food samples into a single cluster, but clearly separated genetically close isolates obtained from invasive listeriosis cases. A comparative genomic approach identified a premature stop codon in the chiB gene, encoding one of the two L. monocytogenes chitinases, which clustered with disease outcome. Correction of this premature stop codon in one representative gastroenteritis outbreak isolate restored chitinase production, but effects in infection experiments were not found. While the exact role of chitinases in virulence of L. monocytogenes is still not fully understood, our results now clearly show that ChiB-derived activity is not required to establish L. monocytogenes gastroenteritis in humans. This limits a possible role of ChiB in human listeriosis to later steps of the infection.
Statewide Prevalences of Concern about Enough Food, 1996–1999
Creators: name: Evenson, Kelly R
name: Lamar Welch, Verna L
name: Laraia, Barbara A
name: Perry, April L
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: OBJECTIVE: Food insecurity is defined as not having access at all times to enough food for an active and healthy life-style. A Healthy People 2010 objective is to increase food security and reduce the risk of hunger for all households. The objective of this study was to characterize the prevalence of concern about enough food and its association with other sociodemographic and health characteristics at the state level. METHODS: Adult respondents participating in the Behavioral Risk Factor Surveillance System survey provided information on concern about enough food from nine states from 1996 through 1999. RESULTS: Overall, the prevalence of concern about enough food ranged from 3.1% to 11.8% for individual states. Across states, low household income was the strongest predictor of concern about enough food. The odds of being concerned about enough food were generally higher among respondents who were female, younger, and without health care coverage. The odds were generally lower among those reporting excellent or very good general health and among non-Hispanic whites. CONCLUSION: Food security scales could be used at the state level to track progress for the Healthy People 2010 objective of reducing food insecurity and hunger across American households.
New AdS$_3$/CFT$_2$ pairs in massive IIA with $(0,4)$ and $(4,4)$ supersymmetries
Creators: name: Lozano, Yolanda
name: Macpherson, Niall T.
name: Petri, Nicolò
name: Risco, Cristian
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a new class of $\text{AdS}_3\times $S$^3\times $M$_4$ solutions of massive Type IIA supergravity with $(0,4)$ supersymmetries and SU(3) structure. We study in detail two subclasses of these solutions. The first subclass is when M$_4=$S$^2\times Σ_2$, with $Σ_2$ a 2d Riemann surface, and the geometry is foliated over the $Σ_2$. We interpret these solutions as duals to surface defect CFTs within the 6d $(1,0)$ CFTs dual to the $\text{AdS}_7\times$S$^2\times I$ solutions of massive IIA supergravity. The second subclass is when M$_4=\mathbb{T}^3\times I$ and the geometry is foliated over the interval. In this case supersymmetry is enhanced to $(4,4)$ in the massless limit, and the solutions are holographically dual to $(4,4)$ CFTs living in two dimensional D2-NS5-D4 Hanany-Witten brane set-ups. In turn, in the massive case the solutions find an interpretation as D2-D4 branes embedded in Type I' string theory. We construct explicit quiver gauge theories from the different brane set-ups that flow in the IR to the 2d dual CFTs dual to the solutions. We check the validity of our proposals with the matching between the field theory and holographic central charges.
description: 41 pages + appendix. v2 minor corrections, published version
Ichan Tecolotl. Órgano Informativo del Centro de Investigaciones y Estudos Superiores en Antropología Social
Creators: name: Aguirre, Jorge Roberto Melville
name: González, María Victoria Chenaut
name: Michel, Edith Françoise Kauffer
name: Alfieri, Daniela Emma Traffano
name: Orozco, Salvador Sigüenza
name: Torres, María Elena Martínez
name: De La Garza, María Luisa
name: Guzmán, María Guadalupe Ocampo
name: Morales, Juana Cruz
name: Olivera, Mercedes Guadarrama
name: Estrada, Ana Luisa Cruz
name: Naró, Rodolfo
name: Gabaldón, Marta Martín
name: González, Karla Janiré Avilés
name: Aguilar, Clara Luz Villanueva
Publisher: name: Zenodo
Year: 2013
Subjects: Antropología
Historia
México
Centro de Investigaciones y Estudios Superiores en Antropología Social (CIESAS)
Ichan Tecolotl

description: Ichan Tecolotl. Órgano Informativo del Centro de Investigaciones y Estudos Superiores en Antropología Social Año 23, num. 269, enero de 2013 Índice Editorial. El Diplomado en Antropología Social en Quetzaltenango, Guatemala - Roberto Melville Aguirre (3-7) Congreso Internacional en Nápoles (Italia), organizado por la Unión Internacional de Ciencias Antropológicas y Etnológicas (IUAES) - Victoria Chenaut González (8-9) La investigación sobre agua desde el CIESAS-Sureste: actividades recientes - Edith F. Kauffer Michel y Clara Luz Villanueva Aguilar (10-11) Puntos de encuentro. De historias e imágenes: el estado de Oaxaca en el siglo XX - Daniela Traffano y Salvador Sigüenza Orozco (12-14) Red de posgrados 2012: nueva etapa de colaboración interinstitucional en San Cristóbal de Las Casas, Chiapas - María Elena Martínez Torres, María Luisa de la Garza, María Guadalupe Ocampo Guzmán, Juana Cruz Morales y Mercedes Guadarrama Olivera (15-17) Organizan Segundo Encuentro de Antropología y Filosofía en el CIESAS-DF - Ana Luisa Cruz Estrada (18-19) Dictan conferencia sobre antropología africanista: de la construcción de la etnia a la conexión de las culturas - Rodolfo Naró (20-21) Un paseo por los códices - Ana Luisa Cruz Estrada (22-23) Comentarios sobre el Seminario y lectura del paisaje. Los pueblos huerteros: sistemas agrícolas con énfasis en el sustento alimentario - Marta Martín Gabaldón (24-25) Distingue la CDHDF a la Dra. Elena Azaola con el reconocimiento "Ponciano Arriaga Leija 2012" - Rodolfo Naró (26) Tres egresados de maestría y un investigador del CIESAS premiados por el INAH - Rodolfo Naró (27-28) Crónica de un premio anunciado - Karla Janiré Avilés González (29-30)
The perinatal guidelines evaluation project HIV and pregnancy study: overview and cohort description
Creators: name: Ethier, Kathleen A
name: Royce, Rachel A
name: Wilson, Tracey E
name: Fernandez, M.Isabel
name: Koenig, Linda J
name: Ickovics, Jeannette R
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: OBJECTIVE: The HIV and Pregnancy Study of the Perinatal Guidelines Evaluation Project is a prospective, longitudinal, multisite study established to: (a) assess the implementation of Public Health Service guidelines regarding the prevention of perinatal HIV transmission and (b) evaluate the psychosocial consequences of HIV infection among pregnant women. A distinctive aspect of the study is the use of an HIV-negative comparison group. This article describes the methodology of the study and baseline characteristics of the study sample. Methods and Results. HIV-infected (n = 336) and uninfected (n = 298) pregnant women were enrolled from four geographic areas: Connecticut, North Carolina, Brooklyn, NY, and Miami, FL. The study included three structured face-to-face interviews from late pregnancy to six months postpartum for HIV-infected and uninfected women. Additional self-reports of medication adherence were collected for the HIV-infected participants, and the medical records of infected mothers and their infants were reviewed. Electronic monitoring of medication adherence was conducted for a subset of the infected women. The groups were successfully matched on self-reported characteristics, including HIV-risk behaviors. More than half of the uninfected women reported a high-risk sexual partner. Baseline comparisons indicated that both the HIV-infected and uninfected women had high levels of depressive symptoms, stress, and recent negative life events. CONCLUSIONS: This study provides a unique description of the psychosocial and behavioral characteristics of a population of low-income women. The results of this study suggest that HIV infection is one of many stressors faced by the women in this study.
A community approach to addressing excess breast and cervical cancer mortality among women of African descent in Boston
Creators: name: Bigby, JudyAnn
name: Ferrer, Barbara
name: Ko, Linda K
name: David, Michele M.A
name: Johnson, Natacha
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003

description: In 2000, the REACH Boston 2010 Breast and Cervical Cancer Coalition conducted a community needs assessment and found several factors that may have contributed to disproportionately high breast and cervical cancer mortality among black women: (a) Focus group participants reported that many women in their communities had limited awareness about risk factors for cancer as well as about screening. (b) Black women experienced barriers to care related to the cultural competence of providers and of institutions. (c) Black women were not receiving adequate follow-up for abnormal mammograms and Pap smears. The Coalition's Community Action Plan to address disparities includes a model primary care service for black women; scholarships to increase the number of black mammogram technologists; primary care provider and radiology technologist training about disparities and cultural competence; and education to increase awareness among black women and to increase leadership and advocacy skills.
Crawford V. Washington : Implications for Public Health Policy and Practice in a Domestic Violence Context
Creators: name: Weissman, Deborah
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: In this issue, Law and the Public’s Health examines the United States Supreme Court’s decision in Crawford v. Washington.1 This decision altered the law of evidence in criminal trials, as well as the meaning of the Sixth Amendment Confrontation Clause, which guarantees defendants the right to confront and cross-examine witnesses. (For an overview of the historical developments of the Sixth Amendment right to confront and cross-examine witnesses, see White PJ. Rescuing the Confrontation Clause. 54 S.C.L. Rev. 537; 2003.) At first blush, Crawford might seem unrelated to public health; in fact, however, the decision has extremely important public health ramifications in the context of domestic violence. This column begins with an overview of the decision and describes significant and subsequent legal developments. It then examines Crawford’s implications for domestic violence prosecutions generally, addresses the major unanswered questions left in Crawford’s wake, and concludes with a discussion of the decision’s implications for public health policy and practice.
Validation of the magnetic energy vs. helicity scaling in solar magnetic structures
Creators: name: Tziotziou, K.
name: Moraitis, K.
name: Georgoulis, M. K.
name: Archontis, V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We assess the validity of the free magnetic energy - relative magnetic helicity diagram for solar magnetic structures. We used two different methods of calculating the free magnetic energy and the relative magnetic helicity budgets: a classical, volume-calculation nonlinear force-free (NLFF) method applied to finite coronal magnetic structures and a surface-calculation NLFF derivation that relies on a single photospheric or chromospheric vector magnetogram. Both methods were applied to two different data sets, namely synthetic active-region cases obtained by three-dimensional magneto-hydrodynamic (MHD) simulations and observed active-region cases, which include both eruptive and noneruptive magnetic structures. The derived energy--helicity diagram shows a consistent monotonic scaling between relative helicity and free energy with a scaling index 0.84$\pm$0.05 for both data sets and calculation methods. It also confirms the segregation between noneruptive and eruptive active regions and the existence of thresholds in both free energy and relative helicity for active regions to enter eruptive territory. We consider the previously reported energy-helicity diagram of solar magnetic structures as adequately validated and envision a significant role of the uncovered scaling in future studies of solar magnetism.
Disorder in a Quantum Critical Superconductor
Creators: name: Seo, S.
name: Lu, Xin
name: Zhu, J. -X.
name: Urbano, R. R.
name: Curro, N.
name: Bauer, E. D.
name: Sidorov, V. A.
name: Pham, L. D.
name: Park, Tuson
name: Fisk, Z.
name: Thompson, J. D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In four classes of materials, the layered copper-oxides, organics, iron-pnictides and heavy-fermion compounds, an unconventional superconducting state emerges as a magnetic transition is tuned toward absolute zero temperature, that is, toward a magnetic quantum-critical point (QCP). In most materials, the QCP is accessed by chemical substitutions or applied pressure. CeCoIn5 is one of the few materials that are born as a quantum-critical superconductor and, therefore, offers the opportunity to explore the consequences of chemical disorder. Cadmium-doped crystals of CeCoIn5 are a particularly interesting case where Cd substitution induces long-range magnetic order, as in Zn-doped copper-oxides. Applied pressure globally supresses the Cd-induced magnetic order and restores bulk superconductivity. Here we show, however, that local magnetic correlations, whose spatial extent decreases with applied pressure, persist at the extrapolated QCP. The residual droplets of impurity-induced magnetic moments prevent the reappearance of conventional signatures of quantum criticality, but induce a heterogeneous electronic state. These discoveries show that spin droplets can be a source of electronic heterogeneity in classes of strongly correlated electron systems and emphasize the need for caution when interpreting the effects of tuning a correlated system by chemical substitution.
description: main text and supplementary information
The Effectiveness of a Yoga Program on Heart Rate Variability in Postpartum Women
Creators: name: Lesser, Iris
name: Hatfield, Gillian
Publisher: name: The Health & Fitness Journal of Canada
Year: 2024

description: Background: Chronic stress in new motherhood may result in dysregulation of the autonomic nervous system. Yoga has been found to increase heart rate variability (HRV) in healthy adults. Purpose: It is unknown whether yoga is effective at improving HRV in this population. Methods: Thirty women, mean age 31.5 (3.9) years, were randomized into one of three 12-week intervention groups: 1) in-person yoga, 2) online yoga, and 3) control and completed HRV measurements. HRV was recorded daily by participants 3 minutes upon waking as the root mean square of successive R-R intervals for 14 days pre- and post-intervention. Furthermore, participants recorded self-compassion, fatigue, and depressive symptoms at baseline and follow-up. Results: HRV decreased in the in-person yoga group (p<0.05) but was not significant when compared to the control group. There were significant improvements in depression in the online yoga group (p<0.05). There were no significant associations between change in HRV and change in self-compassion, fatigue, or depression. Conclusions: Future research should consider a greater frequency of yoga classes to determine if there is a dose-response to HRV. To enhance the engagement of postpartum women in physical activity research, less stringent group assignments should be considered.
description: The Health & Fitness Journal of Canada, Vol. 17 No. 1 (2024)
Academic Public Health Community Re Sponds to Hurricanes: A History of the University of North Carolina School of Public Health Response and New Infrastructure, 1999–2006
Creators: name: Horney, Jennifer A.
name: MacDonald, Pia D. M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: Schools of public health have traditionally offered internships, practicums, and other placement programs to give students the opportunity to gain insight into applied public health careers and to participate in service learning. While valuable, these more formal placements may not provide needed support in public health emergency situations. In addition, they may not meet the need for additional resources for increased epidemiologic surge capacity identified by the Centers for Disease Control and Prevention (CDC) and state and local health departments.1 To better address the need for surge capacity, schools of public health can provide just-in-time student volunteers to assist local, regional, and state public health agencies in response to public health emergencies and disasters. Schools of public health can provide technical assistance with the public health response to hurricanes. To maximize the potential benefit, both infrastructure and partnerships should be in place prior to an event and response.
Weak lensing corrections to tSZ-lensing cross correlation
Creators: name: Tröster, Tilman
name: Van Waerbeke, Ludovic
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The cross correlation between the thermal Sunyaev-Zeldovich (tSZ) effect and gravitational lensing in wide field has recently been measured. It can be used to probe the distribution of the diffuse gas in large scale structure, as well as inform us about the missing baryons. As for any lensing-based quantity, higher order lensing effects can potentially affect the signal. Here, we extend previous higher order lensing calculations to the case of tSZ-lensing cross correlations. We derive terms analogous to corrections due to the Born approximation, lens-lens coupling, and reduced shear up to fourth order in the Newtonian potential. Redshift distortions and vector modes are shown to be negligible at this order. We find that the dominant correction due to the reduced shear exceeds percent-level only at multipoles of $\ell \gtrsim 3000$.
description: 20 pages, 2 figures; matches version accepted by JCAP
Coupling between tilts and charge carriers at polar-nonpolar perovskite interfaces
Creators: name: Bennett, Daniel
name: Aguado-Puente, Pablo
name: Artacho, Emilio
name: Bristowe, Nicholas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The phenomenological theory for the polar instability giving rise to a two-dimensional electron gas at perovskite interfaces is hereby extended to include the coupling to perovskite tilts. A Landau theory for homogeneous tilts is first explored, setting the scene for the further, more realistic Landau-Ginzburg theory describing varying tilt amplitudes across a thin film. The theory is also generalized to account for the response to an applied electric field normal to the interface, which allows a finer control on phase transitions. The conventionally described physics of a single metal-insulator transition is substantially enriched by the coupling, the model describing various scenarios with one or two transitions, possibly continuous or discontinuous. First-principles calculations permit the estimation of the parameters defining the model, which have been calculated for the interface between lanthanum aluminate and strontium titanate.
description: Accepted version
Empirical rule of fruit rind fragmentation in muskmelon netting
Creators: name: Akiba, Yuri
name: Ishibashi, Akari
name: Sato, Motohiro
name: Shima, Hiroyuki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The suberized netting tissue on the surface of muskmelons is a remnant of the rind fragmentation caused by the mechanical imbalance between the expanding flesh meat and the solidified epidermis during growth. The appearance of this netting pattern is an important indicator for assessing the quality of muskmelons; however, very few quantitative studies have been conducted on the geometry of the netting. This study statistically analyzed the areas of fine epidermis fragments surrounded by the net using image analysis and explored a common rule governing the probability distribution of the fragment area. We found that the fragment area distribution follows a universal law by the modified Bessel function, which is consistent with the theoretical argument for the fracture behavior of brittle materials.
Zeroing in on the initial state -- tomography using bulk, jets and photons
Creators: name: Renk, Thorsten
name: Chatterjee, Rupa
name: Eskola, Kari J.
name: Niemi, Harri
name: Helenius, Ilkka
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: One of the unsolved problems in the current 'standard model' of heavy ion physics is the apparent rapid thermalization of QCD matter in the pre-equilibrium stage. While it is challenging to probe this mechanism directly, there are now several observables available which allow tomographic imaging of the initial state geometry, which is expected to carry remnant information of the equilibration mechanism. On the fluid dynamics side, scaled fluctuations in the momentum space anisotropy parameters v_n image the initial eccentricity fluctuations epsilon_n almost directly with only a weak dependence on the details of the fluid dynamical evolution. From a different direction, due to the strong non-linear dependence of their emission rates on temperature, thermal photons and their v_n are very sensitive to the initial state graininess. Finally, the v_2 and v_3 of high P_T hadrons coming from hard processes reflect the attenuation pattern of partons propagating through the inhomogeneous matter density after some fluid dynamical evolution. Combining information from all these channels does not yet lead to a fully consistent picture, however intriguing trends pointing towards non-trivial initial state dynamics emerge.
description: 4 pages, talk given at the XXIV International Conference on uktrarelativistic Nucleus Nucleus Collisions (Quark Matter 2014), 19-24 May, Darmstadt, Germany