cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Laboratory evidence for the non-detection of excited nascent H2 in dark clouds
Creators: name: Congiu, Emanuele
name: Matar, Elie
name: Kristensen, Lars E.
name: Dulieu, Francois
name: Lemaire, Jean Louis
Publisher: name: arXiv
Year: 2009
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: There has always been a great deal of interest in the formation of H2 as well as in the binding energy released upon its formation on the surface of dust grains. The present work aims at collecting experimental evidence for how the bond energy budget of H2 is distributed between the reaction site and the internal energy of the molecule. So far, the non-detection of excited nascent H2 in dense quiescent clouds could be a sign that either predictions of emission line intensities are not correct or the de-excitation of the newly formed molecules proceeds rapidly on the grain surface itself. In this letter we present experimental evidence that interstellar molecular hydrogen is formed and then rapidly de-excited on the surface of porous water ice mantles. In addition, although we detect ro-vibrationally excited nascent molecules desorbing from a bare non-porous (compact) water ice film, we demonstrate that the amount of excited nascent hydrogen molecules is significantly reduced no matter the morphology of the water ice substrate at 10 K (both on non-porous and on porous water ice) in a regime of high molecular coverage as is the case in dark molecular clouds.
description: 15 pages, 3 figures, to be published in MNRAS
ALGORITHMS FOR OPTIMIZATION PROBLEMS WITH FRACTIONAL RESOURCES
Creators: name: CASAZZA, MARCO
Publisher: name: Universit� degli Studi di Milano
Year: 2016

description: We consider a class of optimization problems having a distinctive feature: both discrete and continuous decisions need to be taken simultaneously. These problems arise in many practical applications, for example broadband telecommunications and green transportation problems, where resources are available, that can be fractionally consumed or assigned. These problems are proven of being harder than their purely discrete counterpart. We propose effective methodologies to tackle them. Our approach is to consider variants of classical combinatorial optimization problems belonging to three domains: packing, routing and integrated routing/packing. Our results suggest that indeed effective approaches exist, reducing the computational effort required for solving the problem. Mostly, they are based on exploiting the structure of optimal solutions to reduce the search space.
THE ROLE OF NUMB IN STEM CELL HOMEOSTASIS AND BREAST TUMORIGENESIS
Creators: name: COAZZOLI, MARCO
Publisher: name: Universit� degli Studi di Milano
Year: 2014

description: In this thesis I report my investigations on the role of Numb, a known cell fate determinant in regulating Stem Cell homeostasis and in the pathogenesis of human and mouse breast cancer. I have investigated the characterization of the biological and molecular features of Numb KO murine breast model in comparison with Numb deficient human breast cells model. I exploited an in vitro system (the mammosphere assay) to propagate and enrich breast SCs, in combination with a cell membrane labeling system (PKH-assay) to purify SCs. The absence of Numb in both murine and human models helped to clarify the role of this ?fate determinant? starting from the SC first mitotic division in vitro up to the in vivo tumorigenesis and related Numb reconstitution consequences. Through the comparison of the self-renewal properties of normal and cancer SCs, both in terms of proliferative cell fate and Numb partitioning, and the study of the molecular mechanisms underlying abnormal growth properties, functional attenuation and pharmacological restoration of signaling pathways in mammary CSCs, I have attempted to answer the open questions regarding the role of SCs in cancer development and maintenance, focusing the attention on a first possible direct evidence for cancer SC targeted therapy.
Dependence of protein mechanical unfolding pathways on pulling speeds
Creators: name: Li, Mai Suan
name: Kouza, Maksim
Publisher: name: arXiv
Year: 2009
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: Mechanical unfolding of the fourth domain of Distyostelium discoideum filamin (DDFLN4) was studied in detail using the C$_α$-Go model. We show that unfolding pathways of this protein depend on the pulling speed. The agreement between theoretical and experimental results on the sequencing of unfolding events is achieved at low loading rates. The unfolding free energy landscape is also constructed using dependencies of unfolding forces on pulling speeds.
description: 26 pages, 9 figures, 1 table
EVALUATION OF COMBINED EFFECTS OF AGING TREATMENT (DRY AGING AND WET AGING) AND BREED ON QUALITY ATTRIBUTES OF LOCALLY MARKETED RED MEAT
Creators: name: SARA BENSOULA
name: MOHAMED ELAFFIFI
name: SAMIRA BECILA
Publisher: name: Zenodo
Year: 2023
Subjects: Conservation, Dry Aging, Red Meat, Water Loss, Wet Aging.

description: Abstract
The purpose of this work is to know the effect of using two types of aging and two breeds on the moisture maintain capacity of locally marketed red meat. Two groups of (n=30) of red meat samples were collected from Algerian beef and lamb carcasses slaughtered under appropriate conditions, with a selection of three types of muscle (n=10): Supraspinatus, Longissimus Dorsi and Semimembranosus. Half of each group was aged in carcass (Dry aging 24 to 36 h after slaughter before storage at 18 ± 1°C), while the other half was wet matured (Vacuum sealed directly after slaughter and stored for 24h at 4 ± 1°C to avoid cold shortening before kept at 18 ± 1°C). In addition to the pH measurement [1], analysis such as water holding capacity (WHC), cooking loss (CL), drip loss (DL) and thawing loss (TL) were measured using [2] modified by [3], [4], [5] and [6] respectively to estimate the level of moisture loss in the samples studied. pH measurement showed that dry aged samples have significantly (p<0.05) higher pH level 5.56 ± 0.20 comparatively to the wet aged ones 5.46 ± 0.20. Regarding Water-Holding Capacity level. Results showed no significant difference between the two types of aging used: wet aging and dry aging with values of 19.02% ± 0.05 vs 19.29% ± 0.06 respectively. And the same goes for the percentage of relegated water. Where the results were almost equal with 32.68% ± 0.07 in dry aged samples and 32.56% ± 0.06 in wet aged ones. Moreover. this is also the case for cooking loss level where mean results show no difference between dry aged 37.45% ± 0.04 and wet aged 36.33% ± 0.04 samples. Therefore. Dry aged samples had significantly (p<0.05) lower drip losses 2.46% ± 0.01 comparatively to the wet aged ones 3.32% ± 0.01. as well as for thawing losses that were significantly and remarkably (p<0.05) high in the samples that were aged in vacuum sealed 4.78% ± 0.01 by comparison to those aged traditionally (dry aged) 3.26% ± 0.01.
Additional file 1 of Clinical characteristics of airway impairment assessed by impulse oscillometry in patients with chronic obstructive pulmonary disease: findings from the ECOPD study in China
Creators: name: Lu, Lifei
name: Peng, Jieqi
name: Wu, Fan
name: Yang, Huajing
name: Zheng, Youlan
name: Deng, Zhishan
name: Zhao, Ningning
name: Dai, Cuiqiong
name: Xiao, Shan
name: Wen, Xiang
name: Xu, Jianwu
name: Wu, Xiaohui
name: Zhou, Kunning
name: Ran, Pixin
name: Zhou, Yumin
Publisher: name: figshare
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health
subject: Hematology

description: Additional file 1. Table S1. Baseline characteristics airway impairment assessed by IOS in patients with chronic obstructionPulmonary disease (post-bronchodilator FEV1/FVC < 0.7). Table S2. Post-bronchodilator lung function and pre-bronchodilator IOS parameters of airway impairment in patients with chronic obstruction pulmonary disease (post-bronchodilator FEV1/FVC < 0.70). Table S3. Associations between acute exacerbations of COPD in the previous year and airway impairment in patients with chronic obstruction pulmonary disease. (post-bronchodilator FEV1/FVC < 0.70). Figure S1. mMRC and CAT scores between airway impairment group and non-airway impairment group in patients with chronic obstruction pulmonary disease (post-bronchodilator FEV1/FVC < 0.7). Figure S2. Proportion of airway impairment in patients with chronic obstruction pulmonary disease (post-bronchodilator FEV1/FVC < 0.70) with different GOLD grades. Figure S3. Differences in CT imaging between group with IOS parameters’ abnormalities and group with normal IOS parameters in patients with chronic obstruction pulmonary disease (post-bronchodilator FEV1/FVC < 0.70).
Construction of Coupled Period-Mass Functions in Extrasolar Planets through the Nonparametric Approach
Creators: name: Jiang, Ing-Guey
name: Yeh, Li-Chin
name: Chang, Yen-Chang
name: Hung, Wen-Liang
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Using the period and mass data of two hundred and seventy-nine extrasolar planets, we have constructed a coupled period-mass function through the non-parametric approach. This analytic expression of the coupled period-mass function has been obtained for the first time in this field. Moreover, due to a moderate period-mass correlation, the shapes of mass/period functions vary as a function of period/mass. These results of mass and period functions give way to two important implications: (1) the deficit of massive close-in planets is confirmed, and (2) the more massive planets have larger ranges of possible semi-major axes. These interesting statistical results will provide important clues into the theories of planetary formation.
description: 20 pages, 7 figures, published in AJ, 137, 329 (2009)
Investigating spatial and temporal factors driving human-wolf interactions in Pacific Rim National Park Reserve, Canada
Creators: name: Scherger, Jenna Kristine
Publisher: name: University of British Columbia
Year: 2023

description: Human-carnivore conflict affects human safety, livelihoods, animal welfare, carnivore population stability, and ecological integrity. Understanding factors associated with conflicts may help to identify management actions that better support the safety of people and wildlife. Over the past few decades, interactions between people and wolves (Canis lupus) in Pacific Rim National Park Reserve, Canada have resulted in attacks on people, pets, and the death of wolves. To understand the spatial patterns of conflict, we used data from 124 camera traps (2018-2022) to quantify temporal wolf activity in relation to human activity, infrastructure, and prey availability. We further tested the effect of human activity on wolf space use and quantified wolf distribution and activity during COVID-19 lockdowns. We then used wolf activity models and landscape variables as covariates to understand the timing and distribution of 277 reported human-wolf interactions that occurred between 2017-2021. Our analyses suggested that wolf activity was consistently greater in proximity to prey habitat and recreational infrastructure. There was no compelling evidence to suggest the absence of park visitors during the COVID-19 lockdown altered wolf distribution or activity. Unsurprisingly, human-wolf interactions occurred where humans and wolves spatially overlap, especially in areas where wolves lacked hiding cover. Key recommendations to promote human-wolf coexistence include focusing education outreach (e.g., attractant management and wolf ecology) in areas where high human activity overlaps with potential wolf habitat.
Protein mechanical unfolding: importance of non-native interactions
Creators: name: Kouza, Maksim
name: Hu, Chin-Kun
name: Zung, Hoang
name: Li, Mai Suan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: Mechanical unfolding of the fourth domain of Distyostelium discoideum filamin (DDFLN4) was studied by all-atom molecular dynamics simulations, using the GROMOS96 force field 43a1 and the simple point charge explicit water solvent. Our study reveals an important role of non-native interactions in the unfolding process. Namely, the existence of a peak centered at the end-to-end extension 22 nm in the force-extension curve, is associated with breaking of non-native hydrogen bonds. Such a peak has been observed in experiments but not in Go models, where non-native interactions are neglected. We predict that an additional peak occurs at 2 nm using not only GROMOS96 force field 43a1 but also Amber 94 and OPLS force fields. This result would stimulate further experimental studies on elastic properties of DDFLN4.
description: 27 pages, 15 figures
Multiqubit symmetric states with high geometric entanglement
Creators: name: Martin, J.
name: Giraud, O.
name: Braun, P. A.
name: Braun, D.
name: Bastin, T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a detailed study of the geometric entanglement properties of pure symmetric N-qubit states, focusing more particularly on the identification of symmetric states with a high geometric entanglement and how their entanglement behaves asymptotically for large N. We show that much higher geometric entanglement with improved asymptotical behavior can be obtained in comparison with the highly entangled balanced Dicke states studied previously. We also derive an upper bound for the geometric measure of entanglement of symmetric states. The connection with the quantumness of a state is discussed.
Lessons, narratives, and research directions for a sustainable circular economy
Creators: name: Leipold, Sina
name: Petit‐Boix, Anna
name: Luo, Anran
name: Helander, Hanna
name: Simoens, Machteld
name: Ashton, Weslynne S.
name: Babbitt, Callie W.
name: Bala, Alba
name: Bening, Catharina R.
name: Birkved, Morten
name: Blomsma, Fenna
name: Boks, Casper
name: Boldrin, Alessio
name: Deutz, Pauline
name: Domenech, Teresa
name: Ferronato, Navarro
name: Gallego‐Schmid, Alejandro
name: Giurco, Damien
name: Hobson, Kersty
name: Husgafvel, Roope
name: Isenhour, Cynthia
name: Kriipsalu, Mait
name: Masi, Donato
name: Mendoza, Joan Manuel F.
name: Milios, Leonidas
name: Niero, Monia
name: Pant, Deepak
name: Parajuly, Keshav
name: Pauliuk, Stefan
name: Pieroni, Marina P. P.
name: Richter, Jessika Luth
name: Saidani, Michael
name: Smol, Marzena
name: Peiró, Laura Talens
name: Van Ewijk, Stijn
name: Vermeulen, Walter J. V.
name: Wiedenhofer, Dominik
name: Xue, Bing
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie
subject: industrial ecology
subject: narratives
subject: policy relevance
subject: research agenda
subject: science policy
subject: sustainability

description: The current enthusiasm for the circular economy (CE) offers a unique opportunity to advance the impact of research on sustainability transitions. Diverse interpretations of CE by scholars, however, produce partly opposing assessments of its potential benefits, which can hinder progress. Here, we synthesize policy‐relevant lessons and research directions for a sustainable CE and identify three narratives—optimist, reformist, and skeptical—that underpin the ambiguity in CE assessments. Based on 54 key CE scholars’ insights, we identify three research needs: the articulation and discussion of ontologically distinct CE narratives; bridging of technical, managerial, socio‐economic, environmental, and political CE perspectives; and critical assessment of opportunities and limits of CE science–policy interactions. Our findings offer practical guidance for scholars to engage reflexively with the rapid expansion of CE knowledge, identify and pursue high‐impact research directions, and communicate more effectively with practitioners and policymakers.
Simplified Vacuum Energy Expressions for Radial Backgrounds and Domain Walls
Creators: name: Dunne, Gerald
name: Kirsten, Klaus
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We extend our previous results of simplified expressions for functional determinants for radial Schrödinger operators to the computation of vacuum energy, or mass corrections, for static but spatially radial backgrounds, and for domain wall configurations. Our method is based on the zeta function approach to the Gel'fand-Yaglom theorem, suitably extended to higher dimensional systems on separable manifolds. We find new expressions that are easy to implement numerically, for both zero and nonzero temperature.
description: 30 pages
Additional file 1 of The use of ICU resources in CAR-T cell recipients: a hospital-wide study
Creators: name: Valade, Sandrine
name: Darmon, Michael
name: Zafrani, Lara
name: Mariotte, Eric
name: Lemiale, Virginie
name: Bredin, Swann
name: Dumas, Guillaume
name: Boissel, Nicolas
name: Rabian, Florence
name: Baruchel, André
name: Madelaine, Isabelle
name: Larghero, Jérôme
name: Brignier, Anne
name: Lengliné, Etienne
name: Harel, Stéphanie
name: Arnulf, Bertrand
name: Di Blasi, Roberta
name: Thieblemont, Catherine
name: Azoulay, Elie
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Hematology

description: Additional file1: Figure S1. Patient flow chart. Table S1. CRS grading (adapted from Lee et al, Biol Blood Marrow Transplant 2019). Table S2. Neurotoxicity grading according to the CAR-T cell therapy-associated TOXicity score (CARTOX) (adapted from Lee et al, Biol Blood Marrow Transplant 2019). Table S3. Variables associated with mortality by multivariable logistic regression. Table S4. Causes of death
Two-loop corrections and predictability on orbifold
Creators: name: Uekusa, Nobuhiro
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study quantum loop corrections to two-point functions and extraction of physical quantities in a five-dimensional $ϕ^4$ theory on an orbifold. At two-loop level, we find that divergence for quartic derivative terms of $(p^2)^2$ appear as Lagrangian terms in the bulk. The counterterms are needed and these terms make propagators have two poles. With this effect taken into account, corrections to masses are derived. We show that for extraction of physical quantities for two-point functions an ultraviolet cutoff must be orders of magnitude larger compared to a compactification scale. Even higher derivative corrections at higher loop levels are also discussed.
description: 26 pages, 4 figures, discussion on even higher order corrections and counterterms and the associated section are added
Toeplitz operators on generalized Bergman spaces
Creators: name: Chailuek, Kamthorn
name: Hall, Brian C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Complex Variables (math.CV)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 32A36, 22E46, 81S30

description: We consider the weighted Bergman spaces HL^2(B^d,μ_λ), where dμ_λ(z)=c_λ(1-|z|^2)^lambda dτ, τbeing the hyperbolic volume measure. These spaces are nonzero if and only if λ>d. For 0
description: Final version. To appear in Integral Equations and Operator Theory
"TABIIY GEOGRAFIK JARAYONLAR" MAVZUSINI O`QITISHDA GEOGRAFIK O`YINLARNING AHAMIYATI
Creators: name: D.G.Muminov, Yu.Usmonova Qo`qon davlat pedagogika instituti.
Publisher: name: Zenodo
Year: 2023

description: Mazkur ishda ta'lim jarayonining sifatiy xususiyatlariga ahamiyat qaratilgan. O'quv jarayoniga turli pedagogik texnologiyalarni tadbiq etish haqida fikr berilgan. Xususan dars jarayonida o'yinlardan foydalanishning pedagogic-psixologik jihatlari yoritilgan.
Effect-Of-Risk-Expectancy-and-Trust-on-The-Use-of-Blood-Utilization-Calculator-An-Artificial-Int_RCode
Creators: name: Choudhury, Avishek
Publisher: name: Zenodo
Year: 2021

description: Abstract A research gap exists between the capabilities of advanced AI technologies in healthcare and the extent to which clinicians are willing to adopt and use these systems. The discipline of human factors and ergonomics (HFE) is well equipped to address the interaction between AI systems and end-users and its implications in healthcare. The value of AI systems as other health information technologies relies on end users’ willingness and intention to use it. Our study addressed this research gap and leverages expectancy theory to understand the expectations, trust, and perceptions of healthcare professionals related to their intent to use an AI-based blood utilization calculator (BUC). The participants who are users of the BUC system were recruited and administered a survey from a large hospital system in Midwest in 2021. The findings showed the effect of perceived risk (negatively) and expectancy (positively) on clinician’s trust in BUC. Trust was also found to mediate the relationship of Perceived risk and expectancy with the intent to use BUC. The findings of the study established pathways for future research and have implications on factors influencing the use of BUC.
description: Cite: https://doi.org/10.1016/j.apergo.2022.103708 This file only contains the structural equation modeling
description: {"references": ["Choudhury A., Asan, O., and Medow, JE. \" Effect of risk, expectancy, and trust on clinicians' intent to use an artificial intelligence system -- Blood Utilization Calculator,\" Applied Ergonomics, 101(1), e 103708, 2022."]}
Quantum Dating Market
Creators: name: Zabaleta, O. G.
name: Arizmendi, C. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We consider the dating market decision problem under the quantum mechanics point of view. Quantum states whose associated amplitudes are modified by men strategies are used to represent women. Grover quantum search algorithm is used as a playing strategy. Success is more frequently obtained by playing quantum than playing classic.
description: 14 pages, 5 figures, to appear in Physica A
Natural convective processes
Creators: name: Everard, Kelsey Ann
Publisher: name: University of British Columbia
Year: 2023

description: Heat transport is one of the most important phenomena in environmental fluid mechanics. Of the heat transport processes, convection is by and large the most important. Convective processes in the environment, however, are rarely straightforward, necessitating investigation into the various complications that can exist for a better understanding of heat transport in real world flows. This dissertation investigates three topical problems in convective processes of environmental fluids, 1) differential cooling of a freshwater lake below the temperature of maximum density, 2) natural convection of a fluid with a temperature dependent viscosity, and 3) analysis methods of observational turbulence data. In the second chapter of this dissertation, a simple box model which describes the cooling of a freshwater lake below the temperature of maximum density is presented. Considering only the quadratic equation of state for (fresh) water and the heat fluxes due to a constant surface heat loss and a time-dependent buoyancy-driven exchange flow, reasonable predictions of the timing of ice-on (freezing) for Base Mine Lake in Alberta, Canada are obtained. In the third chapter of this dissertation, the effect of a temperature dependent viscosity on the dynamics of natural convection is explored. While an assumption of constant viscosity is appropriate for many flows involving air and water, it becomes problematic when considering the convection of fluids like silicate melts and magma which have highly temperature-dependent viscosities. Using asymptotic and numerical analysis, the effect that a temperature dependent viscosity has on buoyancy-driven convection along heated and cooled boundaries is described and quantified. In particular, the rate of heat transfer between the boundary and the fluid is solved for. Finally, in the fourth chapter of this dissertation, one of the most widely used approximations in interpreting scales from turbulence experiments is explored: Taylor's frozen eddy hypothesis (FTH). Using a novel representation of how space and time can be correlated in turbulent flows in application to temperature observations made during up-slope flow events in the roughness sublayer of the atmospheric boundary layer, a way forward for the field with regards to analysing turbulence datasets and the application of FTH is clarified.
A Search for Multi-Planet Systems Using the Hobby-Eberly Telescope
Creators: name: Wittenmyer, Robert A.
name: Endl, Michael
name: Cochran, William D.
name: Levison, Harold F.
name: Henry, Gregory W.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Extrasolar multiple-planet systems provide valuable opportunities for testing theories of planet formation and evolution. The architectures of the known multiple-planet systems demonstrate a fascinating level of diversity, which motivates the search for additional examples of such systems in order to better constrain their formation and dynamical histories. Here we describe a comprehensive investigation of 22 planetary systems in an effort to answer three questions: 1) Are there additional planets? 2) Where could additional planets reside in stable orbits? and 3) What limits can these observations place on such objects? We find no evidence for additional bodies in any of these systems; indeed, these new data do not support three previously announced planets (HD 20367b: Udry et al. 2003, HD 74156d: Bean et al. 2008, and 47 UMa c: Fischer et al. 2002). The dynamical simulations show that nearly all of the 22 systems have large regions in which additional planets could exist in stable orbits. The detection-limit computations indicate that this study is sensitive to close-in Neptune-mass planets for most of the systems targeted. We conclude with a discussion on the implications of these non-detections.
description: Accepted to ApJS. Includes 39 pages of radial-velocity data tables
Boaedon lineatus Peters. Gray
Creators: name: Müller, F
Publisher: name: Zenodo
Year: 1885
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Squamata
Sauria
Lamprophiidae
Boaedon
Boaedon lineatus

description: * Acontias lineatus Peters. Gray liz.
Angra pequeña v. F M. [1]
Zu dieser Art gehört auch das im Nachtrag I aufgeführte Stück aus Ceres.
description: Published as part of Müller, F, 1885, Vierter Nachtrag zum Katalogder herpetologischen Sammlung des Basler Museums, pp. 668-717 in Verhandlungen der Naturforschenden Gesellschaft in Basel. 7 (3) on page 708, DOI: 10.5962/bhl.part.2388, http://zenodo.org/record/15183591
Spherical collapse model with and without curvature
Creators: name: Lee, Seokcheon
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate a spherical collapse model with and without the spatial curvature. We obtain the exact solutions of dynamical quantities such as the ratio of the scale factor to its value at the turnaround epoch and the ratio of the overdensity radius to its value at the turnaround time with general cosmological parameters. The exact solutions of the overdensity at the turnaround epoch for the different models are also obtained. Thus, we are able to obtain the nonlinear overdensity at any epoch for the given model. We obtain that the nonlinear overdensity of the Einstein de Sitter Universe is 18 pi^2(fr{1}{2pi} + fr{3}{4})^2 ~ 147 instead of the well known value 18 pi^2 ~ 178. In the open Universe, perturbations are virialized earlier than in flat Universe and thus clusters are denser at the virial epoch. Also the critical density threshold from the linear theory at the virialized epoch is obtained as fr{3}{20} (9pi+6)^{fr{2}{3}} ~ 1.58 instead of fr{3}{20} (12pi)^{fr{2}{3}} ~ 1.69. This value is same for the close and the open Universes. Because we obtain the analytic forms of dynamical quantities, we are able to estimate the abundances of both virialized and non-virialized clusters at any epoch. Also the temperature and luminosity functions are able to be computed at any epoch. Unfortunately, the current concordance model prefers the almost flat Universe and the above results might be restricted by the academic interests only. However, mathematical structure of the physical evolution equations of the curved space is identical with that of the dark energy with the equation of state w = -fr{1}{3}. Thus, we are able to extend these analytic solutions to the general dark energy model and they will provide the useful tools for probing the properties of dark energy.
description: 11 pages, 4 figres, 1 table, Full version of abstract is available in the manuscript
High Order Momentum Modes by Resonant Superradiant Scattering
Creators: name: Zhou, Xiaoji
name: Fu, Jiageng
name: Chen, Xuzong
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The spatial and time evolutions of superradiant scattering are studied theoretically for a weak pump beam with different frequency components traveling along the long axis of an elongated Bose-Einstein condensate. Resulting from the analysis for mode competition between the different resonant channels and the local depletion of the spatial distribution in the superradiant Rayleigh scattering, a new method of getting a large number of high-order forward modes by resonant frequency components of the pump beam is provided, which is beneficial to a lager momentum transfer in atom manipulation for the atom interferometry and atomic optics.
description: 7 pages, 7 figures
Some examples of continuous images of Radon-Nikodým compact spaces
Creators: name: Arvanitakis, Alexander D.
name: Avilés, Antonio
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics

description: We provide a characterization of continuous images of Radon-Nikodym compacta lying in a product of real lines and model on it a method for constructing natural examples of such continuous images.
description: To appear in Czechoslovak Mathematical Journal
The Leo IV dwarf spheroidal galaxy: color-magnitude diagram and pulsating stars
Creators: name: Moretti, M. I.
name: Dall'Ora, M.
name: Ripepi, V.
name: Clementini, G.
name: Di Fabrizio, L.
name: Smith, H.
name: De Lee, N.
name: Kuehn, C.
name: Catelan, M.
name: Marconi, M.
name: Musella, I.
name: Beers, T.
name: Kinemuchi, K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the first V, B-V color-magnitude diagram of the Leo IV dwarf spheroidal galaxy, a faint Milky Way satellite recently discovered by the Sloan Digital Sky Survey. We have obtained B,V time-series photometry reaching about half a magnitude below the Leo IV turnoff, which we detect at V= 24.7 mag, and have performed the first study of the variable star population. We have identified three RR Lyrae stars (all fundamental-mode pulsators, RRab) and one SX Phoenicis variable in the galaxy. In the period-amplitude diagram the Leo IV RR Lyrae stars are located close to the loci of Oosterhoff type I systems and the evolved fundamental-mode RR Lyrae stars in the Galactic globular cluster M3. However, their mean pulsation period, $$=0.655 days, would suggest an Oosterhoff type II classification for this galaxy. The RR Lyrae stars trace very well the galaxy's horizontal branch, setting its average magnitude at $= 21.48 \pm 0.03$ mag (standard deviation of the mean). This leads to a distance modulus of $μ_{0}=20.94 \pm 0.07$ mag, corresponding to a distance of $154 \pm 5$ kpc, by adopting for the Leo IV dSph a reddening $E(B-V) = 0.04 \pm 0.01$ mag and a metallicity of [Fe/H] = -2.31 $\pm$ 0.10.
description: 14 pages, 4 figures, accepted for publication on The Astrophysical Journal Letters
Estimation of volatility functionals in the simultaneous presence of microstructure noise and jumps
Creators: name: Podolskij, Mark
name: Vetter, Mathias
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We propose a new concept of modulated bipower variation for diffusion models with microstructure noise. We show that this method provides simple estimates for such important quantities as integrated volatility or integrated quarticity. Under mild conditions the consistency of modulated bipower variation is proven. Under further assumptions we prove stable convergence of our estimates with the optimal rate $n^{-{1}/{4}}$. Moreover, we construct estimates which are robust to finite activity jumps.
description: Published in at http://dx.doi.org/10.3150/08-BEJ167 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
On the Hydrogen Atom via Wigner-Heisenberg Algebra
Creators: name: Rodrigues, R. de Lima
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We extend the usual Kustaanheimo-Stiefel $4D\to 3D$ mapping to study and discuss a constrained super-Wigner oscillator in four dimensions. We show that the physical hydrogen atom is the system that emerges in the bosonic sector of the mapped super 3D system.
description: 14 pages, no figure. This work was initiated in collaboration with Jambunatha Jayaraman (In memory), whose advises and encouragement were fundamental. http://www.cbpf.br
Unstable Helium Shell Burning on Accreting White Dwarfs
Creators: name: Shen, Ken J.
name: Bildsten, Lars
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: AM Canum Venaticorum (AM CVn) binaries consist of a degenerate helium donor and a helium, C/O, or O/Ne WD accretor, with accretion rates of Mdot = 1e-13 - 1e-5 Msol/yr. For accretion rates < 1e-6 Msol/yr, the accreted helium ignites unstably, resulting in a helium flash. As the donor mass and Mdot decrease, the ignition mass increases and eventually becomes larger than the donor mass, yielding a "last-flash" ignition mass of < 0.1 Msol. Bildsten et al. (2007) predicted that the largest outbursts of these systems will lead to dynamical burning and thermonuclear supernovae. In this paper, we study the evolution of the He-burning shells in more detail. We calculate maximum achievable temperatures as well as the minimum envelope masses that achieve dynamical burning conditions, finding that AM CVn systems with accretors > 0.8 Msol will undergo dynamical burning. Triple-alpha reactions during the hydrostatic evolution set a lower limit to the 12C mass fraction of 0.001 - 0.05 when dynamical burning occurs, but core dredge-up may yield 12C, 16O, and/or 20Ne mass fractions of ~ 0.1. Accreted 14N will likely remain 14N during the accretion and convective phases, but regardless of 14N's fate, the neutron-to-proton ratio at the beginning of convection is fixed until the onset of dynamical burning. During explosive burning, the 14N will undergo 14N(a,g)18F(a,p)21Ne, liberating a proton for the subsequent 12C(p,g)13N(a,p)16O reaction, which bypasses the relatively slow alpha-capture onto 12C. Future hydrodynamic simulations must include these isotopes, as the additional reactions will reduce the Zel'dovich-von Neumann-Doring (ZND) length, making the propagation of the detonation wave more likely.
description: Accepted for publication in The Astrophysical Journal, 10 pages, 8 figures; v2: Minor changes to correct typos and clarify content
Advance Payments for the Scholarship Programme
Creators: name: Daly, Mary
name: Ryu, Sunwoo
name: Polat, Ertugrul
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 440799
subject: Policy and administration not elsewhere classified

description: Advance payments for the Scholarship Programme for basic and high school education were made. The payments were provided for the third bi-month (May-June) in the beginning of this period, although they were usually made at the end of the period.
Examining experiences of serious depression and serious anxiety among individuals receiving injectable opioid agonist treatment (IOAT)
Creators: name: Magel, Tianna
Publisher: name: University of British Columbia
Year: 2023

description: Background: Mental health and substance use disorder (SUD) are often concurrent and comorbid disorders that share several causal factors. This study aims to provide evidence of factors that impact participant reported experiences of serious depression and serious anxiety among a cohort of individuals receiving injectable opioid agonist treatment (iOAT). Methods: This study utilized data from a longitudinal retrospective cohort study of individuals receiving iOAT (i.e. diacetylmorphine and hydromorphone) in Vancouver, Canada from 2016-2018. The primary outcomes of serious depression and serious anxiety were ascertained via participant self-report in the psychiatric domain of the European Addiction Severity Index (EuropASI). Analyses utilized Generalized Linear Mixed Models with random intercepts and Penalized Quasi-Likelihood (GLMMPQL) method of inference to examine associations between several factors and the outcomes of depression and anxiety. Results: Of the 131 participants included in the analyses, the average age was 49.04 years (SD = 9.32), 31% self-identified as female, 30% self-identified as Indigenous (Métis, Inuit, First Nations), 55% reported a chronic medical problem, and mean number of reported days using illicit opioids was 5.97 days (SD = 7.72). Adjusted analysis of serious depression demonstrated significant associations between poorer physical health, recent illicit opioid use, emotional abuse, and free time spent alone. Likewise, adjusted analysis of serious anxiety identified significant associations with age, recent illicit benzodiazepine use, poorer physical health, and social problems. Conclusion: Several factors were identified as associated with the outcomes of serious depression and serious anxiety. As iOAT care continues to expand, there is a clear need for person-centered care (PCC) initiatives that can consider the unique needs of clients experiencing depression and anxiety while providing integrated psychotherapeutic and pharmacological supports.
Biomarker-estimated flavan-3-ol intake is associated with lower blood pressure in cross-sectional analysis in EPIC Norfolk
Creators: name: Ottaviani, Javier I.
name: Britten, Abigail
name: Lucarelli, Debora
name: Luben, Robert
name: Mulligan, Angela A.
name: Lentjes, Marleen A.
name: Fong, Reedmond
name: Gray, Nicola
name: Grace, Philip B.
name: Mawson, Deborah H.
name: Tym, Amy
name: Wierzbicki, Antonia
name: Forouhi, Nita G.
name: Khaw, Kay-Tee
name: Schroeter, Hagen
name: Kuhnle, Gunter G. C.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Article
/692/499
/692/4019/592/75/243
/692/308/174
article

description: Funder: Mars; doi: http://dx.doi.org/10.13039/100007246
description: Abstract: Flavan-3-ols are a group of bioactive compounds that have been shown to improve vascular function in intervention studies. They are therefore of great interest for the development of dietary recommendation for the prevention of cardio-vascular diseases. However, there are currently no reliable data from observational studies, as the high variability in the flavan-3-ol content of food makes it difficult to estimate actual intake without nutritional biomarkers. In this study, we investigated cross-sectional associations between biomarker-estimated flavan-3-ol intake and blood pressure and other CVD risk markers, as well as longitudinal associations with CVD risk in 25,618 participants of the European Prospective Investigation into Cancer (EPIC) Norfolk cohort. High flavan-3-ol intake, achievable as part of an habitual diet, was associated with a significantly lower systolic blood pressure (− 1.9 (− 2.7; − 1.1) mmHg in men and − 2.5 (− 3.3; − 1.8) mmHg in women; lowest vs highest decile of biomarker), comparable to adherence to a Mediterranean Diet or moderate salt reduction. Subgroup analyses showed that hypertensive participants had stronger inverse association between flavan-3-ol biomarker and systolic blood pressure when compared to normotensive participants. Flavanol intake could therefore have a role in the maintenance of cardiovascular health on a population scale.
Enhancement of parameter estimation by Kerr interaction
Creators: name: Genoni, Marco G.
name: Invernizzi, Carmen
name: Paris, Matteo G. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We address quantum estimation of displacement and squeezing parameters by the class of probes made of Gaussian states undergoing Kerr interaction. If we fix the overall energy available to the probe, without posing any constraint on the available Gaussian squeezing, then Gaussian squeezing represents the optimal resource for parameter estimation. On the other hand, in the more realistic case where the amount of Gaussian squeezing is fixed, or even absent, then Kerr interaction turns out to be useful to improve estimation, especially for probe states with large amplitude. Our results indicate that precision achievable with current technology Gaussian squeezing may be attained and surpassed for realistic values of the Kerr coupling.
description: revised version, 6 pages, 3 figures. To appear on PRA
Modular timer networks: abdominal interneurons controlling the chirp and pulse pattern in a cricket calling song
Creators: name: Jacob, Pedro F.
name: Hedwig, Berthold
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Original Paper
Acoustic communication
Central pattern generator
Identified interneurons
Modular network
Timing of rhythms

description: Funder: University of Cambridge
description: Abstract: Chirping male crickets combine a 30 Hz pulse pattern with a 3 Hz chirp pattern to drive the rhythmic opening-closing movements of the front wings for sound production. Lesion experiments suggest two coupled modular timer-networks located along the chain of abdominal ganglia, a network in A3 and A4 generating the pulse pattern, and a network organized along with ganglia A4–A6 controlling the generation of the chirp rhythm. We analyzed neurons of the timer-networks and their synaptic connections by intracellular recordings and staining. We identified neurons spiking in phase with the chirps and pulses, or that are inhibited during the chirps. Neurons share a similar “gestalt”, regarding the position of the cell body, the dendritic arborizations and the contralateral ascending axon. Activating neurons of the pulse-timer network elicits ongoing motor activity driving the generation of pulses; this activity is not structured in the chirp pattern. Activating neurons of the chirp-timer network excites pulse-timer neurons; it drives the generation of chirps and during the chirps the pulse pattern is produced. Our results support the hypothesis that two modular networks along the abdominal ganglion chain control the cricket calling song, a pattern generating network in the mesothoracic ganglion may not be required.
Face individual identity recognition: a potential endophenotype in autism
Creators: name: Minio-Paluello, Ilaria
name: Porciello, Giuseppina
name: Pascual-Leone, Alvaro
name: Baron-Cohen, Simon
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Research
Autism
Individual identity recognition
Face memory
Prosopagnosia
Endophenotype
Heterogeneity
Social memory
Theory of mind
Emotion recognition

description: Funder: Autism Research Trust
description: Funder: NIHR Biomedical Research Centre
description: Funder: National Institute for Health Research (NIHR) Collaboration for Leadership in Applied Health Research and Care East of England at Cambridgeshire and Peterborough NHS Foundation Trust
description: Funder: Sidney R. Baer, Jr. Foundation; doi: http://dx.doi.org/10.13039/100001479
description: Funder: National Science Foundation; doi: http://dx.doi.org/10.13039/501100008982
description: Funder: The Harvard Clinical and Translational Science Center
description: Funder: US-IT Fulbright Commission
description: Abstract: Background: Face individual identity recognition skill is heritable and independent of intellectual ability. Difficulties in face individual identity recognition are present in autistic individuals and their family members and are possibly linked to oxytocin polymorphisms in families with an autistic child. While it is reported that developmental prosopagnosia (i.e., impaired face identity recognition) occurs in 2–3% of the general population, no prosopagnosia prevalence estimate is available for autism. Furthermore, an autism within-group approach has not been reported towards characterizing impaired face memory and to investigate its possible links to social and communication difficulties. Methods: The present study estimated the prevalence of prosopagnosia in 80 autistic adults with no intellectual disability, investigated its cognitive characteristics and links to autism symptoms’ severity, personality traits, and mental state understanding from the eye region by using standardized tests and questionnaires. Results: More than one third of autistic participants showed prosopagnosia. Their face memory skill was not associated with their symptom’s severity, empathy, alexithymia, or general intelligence. Face identity recognition was instead linked to mental state recognition from the eye region only in autistic individuals who had prosopagnosia, and this relationship did not depend on participants’ basic face perception skills. Importantly, we found that autistic participants were not aware of their face memory skills. Limitations: We did not test an epidemiological sample, and additional work is necessary to establish whether these results generalize to the entire autism spectrum. Conclusions: Impaired face individual identity recognition meets the criteria to be a potential endophenotype in autism. In the future, testing for face memory could be used to stratify autistic individuals into genetically meaningful subgroups and be translatable to autism animal models.
Predicted field-induced hexatic structure in an ionomer membrane
Creators: name: Allahyarov, Elshad
name: Taylor, Philip L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Coarse-grained molecular-dynamics simulations were used to study the morphological changes induced in a Nafion$^{\tiny \textregistered}$-like ionomer by the imposition of a strong electric field. We observe the formation of novel structures aligned along the direction of the applied field. The polar head groups of the ionomer side chains aggregate into clusters, which then form rod-like formations which assemble into a hexatic array aligned with the direction of the field. Occasionally these lines of sulfonates and protons form a helical structure. Upon removal of the electric field, the hexatic array of rod-like structures persists, and has a lower calculated free energy than the original isotropic morphology.
description: 4 pages, 7 figures