cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effects of Pulsar Rotation on Timing Measurements of the Double Pulsar System J0737-3039
Creators: name: Rafikov, Roman R.
name: Lai, Dong
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the effect of pulsar rotation on timing of binary pulsars, with particular emphasis on the double pulsar system J0737-3039. Special relativistic aberration due to the orbital motion of pulsar changes both the longitude and colatitude of the emission direction with respect to the pulsar spin axis. The former gives rise to a shift of the arrival time of the pulse centroid (this is the conventional ``longitudinal'' aberration delay), the latter results in a distortion (contraction or dilation) of the pulse profile on the orbital timescale. The amplitude of pulse distortion depends inversely on the variation of polarization position angle across the pulse. For small angle between the pulsar magnetic and spin axes, as inferred for PSR J0737-3039A from polarimetric observations, the pulse distortion is significant (\sim 1%) and the associated ``latitudinal'' aberration delay is much larger than the longitudinal one. By monitoring the arrival time of separate pulse components as a function of pulsar orbital phase, the latitudinal aberration delay may be easily measured with the current timing precision, thus constraining the spin geometry of the system. The latitudinal delay can also be detected by monitoring system's orbital parameters on the geodetic precession timescale. Because of the near edge-on orbital orientation of the PSR J0737-3039 system, general relativistic bending of pulsar A's radio beam near its superior conjunction also introduces spin-dependent time delays of similar order of magnitude as the aberration delays. In addition, light bending splits the pulse profile into two variable components, corresponding to two gravitationally lensed images of the source. Detection of lensing effects is challenging, but may be possible with existing technology.
description: Minor changes, accepted to ApJ
On Multifractal Spectra and Renyi Dimensions in 14.5A GeV/c $^{28}$Si-nucleus Collisions
Creators: name: Ahmad, N.
name: Kamal, A.
name: Khan, M. M.
name: Hushnud
name: Tufail, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A systematic analysis of the data on 14.5A GeV/c $^{28}$Si-nucleus collisions is carried out to investigate the behaviours of Renyi dimensions, Dq and Multifractal Spectral Function, $f(α_q)$. The Renyi dimensions, $D_q$, are observed to decrease with increasing order of the moments, $q$. However, the Multifractal Spectra are concave downwards with their maxima occurring around $α_q = 1.21 \pm 0.01$. A continuous curve representing Multifractal Spectral Function, $f(α_q)$, characterizes manifestation of fluctuations in the rapidity space.
description: Published
The influence of local governance on agricultural advisory services in Tajikistan
Creators: name: Mandler, Andreas
name: Mandler, Andreas
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Institutional and Behavioral Economics
subject: Political Economy
subject: Tajikistan
subject: Agriculture
subject: Advisory service
subject: Local governance
subject: Elites

description: The present article investigates the influence of local governance on agricultural advisory services in Tajikistan. The Central Asian Republic of Tajikistan is an agricultural country that has been described as a hybrid state, where local governance tends to be dominated by a few powerful actors. Local governance processes do have a strong influence on the agriculture practise and on the exchange of the knowledge. Agricultural advisory services claim various effects in the country. Especially in regions that are dominated by monocultures, advisory services have limited success. Therefore the present article assumes that the nexus of knowledge and innovation in Tajik agriculture is largely dependent on the decision-making of local governance processes. The article outlines the important role of local governance for distribution and use of knowledge in rural areas and emphasizes the context of agricultural advisory services in Tajikistan.
MHV Rules for Higgs Plus Multi-Parton Amplitudes
Creators: name: Badger, S. D.
name: Glover, E. W. N.
name: Khoze, Valentin V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present MHV-rules for constructing perturbative amplitudes for a Higgs boson and an arbitrary number of partons. We give explicit expressions for amplitudes involving a Higgs and three negative helicity partons and any number of positive helicity partons - the NMHV amplitudes. We also present a recursive formulation of MHV rules that incorporates the Higgs, quarks and gluons. The recursion relations are valid for all non-MHV amplitudes. The general results agree numerically with all of the available Higgs + n-parton amplitudes and in some cases provide considerably shorter expressions.
description: 35 pages, JHEP3 class, 11 figures
A figurational viewpoint of the complexity of policy enactment: An opportunity for agonistic dialogue?
Creators: name: Scanlon, Dylan
name: Mac Phail, Ann
name: Calderón, Antonio
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 39
subject: Education
classificationCode: 4207
subject: Sports science and exercise

description: The aim of this paper is to explore and provide an alternative theoretical viewpoint, informed by empirical studies, of the curriculum policy enactment process which spans across different curriculum policy spaces by drawing on figurational sociology. This paper constructs this alternative figurational view-point of the policy enactment process by drawing on curriculum policy and policy enactment literature. This viewpoint highlights how a curriculum policy can be (re-)interpreted, (re-)translated and (re-)enacted by multiple, interconnected and interdependent (face-to-face and non-face-to-face, recognised and unrecognised, past and present) relationships. We argue the need for agonistic dialogue between the stakeholders of the educational community and how his could lead to these stakeholders working together across curriculum policy spaces (e.g., curriculum development, teacher education, professional development) and on different aspects of ‘doing’ policy work. We encourage ourselves, and colleagues, to advocate for, support and provide evidence on the central?ity of construction and enactment of curriculum policy in effective curriculum change.
Additional file 1 of Characterization of the TNF and IL-1 systems in human brain and blood after ischemic stroke
Creators: name: Clausen, Bettina H.
name: Wirenfeldt, Martin
name: Høgedal, Sofie S.
name: Frich, Lars H.
name: Nielsen, Helle H.
name: Schrøder, Henrik D.
name: Østergaard, Kamilla
name: Finsen, Bente
name: Kristensen, Bjarne W.
name: Lambertsen, Kate L.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1: Supplementary Figs. 1–9 and Supplementary Table 1.
Against the odds : a gendered analysis of sons’ involvement in filial care
Creators: name: Walsh, Angela
Publisher: name: University of British Columbia
Year: 2009

description: The objective of this thesis is to examine factors that predict soil's involvement in filial care. In addition to exploring selected family structure and demographic factors that relate to men's involvement in different types of care, the gender and health status of the care recipient were considered as integral components in the provision of filial care. Data for this research comes from the Work and Eldercare Survey (1995) conducted by the Work and Eldercare Research Group of CARNET: The Canadian Aging Research Network. Data from 108 adult male caregivers were analyzed with regards to their involvement in three gendered types of care traditionally female (e.g. bathing), traditionally male (e.g. yard work) and gender neutral care (e.g. shopping). This thesis tests a model that was originally devised by Campbell and Martin- Matthews (2003) and is predicated on Finch and Mason's (1989) concept of legitimate excuses, which explores the 'how' and 'why' behind men's limited involvement in filial care. Results show that the men in this sample were more likely to report providing gender neutral care than the other two types of care. Furthermore, the expectation that other family and work obligations would impede men's involvement in caregiving was not supported. However, numerous characteristics of the elderly care recipient did influence the likelihood of men's involvement in numerous types of filial care. Men were more likely to provide gender neutral and traditionally male care to mothers than to fathers. Also, for each of the types of care, the lower the reported health status of the care recipient, the greater the likelihood of son's being involved in care provision.
LIMON NAVLARINI ODDIY VA SOVUTKICHLI OMBORXONALARDA SAQLASH
Creators: name: Nortojiyev, Bobosher
name: Yo'ldoshev, Mirzobek
Publisher: name: Zenodo
Year: 2024

description: Ilmiy maqola limon mevalarini yetishtirish va ularning saqlash davomida, mevalarni tabiy kamayish darajalari tahlil etildi. Bunda sovutkichsiz va sovutkichli saqlash omborxonlarda limon mevalarini saqlash davomida mevalarni tabiy kamayish darajalari turlicha bo‘lganligi kuzatildi. Asosan limon mevalari oddiy sovutkichli omborxonalarda saqlanganda mevalarni tabiiy kamayish darajasi sovuqxonada saqlangan limon mevalariga nisbatan katta tafovut mavjudligi aniqlandi.
Higher Arf Functions and Topology of the Moduli Space of Higher Spin Riemann Surfaces
Creators: name: Natanzon, Sergey
name: Pratoussevitch, Anna
Publisher: name: arXiv
Year: 2004
Subjects: subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 14J60, 30F10 (Primary); 14J17 (Secondary)

description: We prove that any connected component of the space of m-spin structures on compact Riemann surfaces with finite number of punctures and holes is homeomorphic to a quotient of the vector space R^d by a discrete group action. Our proof is based on the representation of the space of m-spin structures on a Riemann surface as a finite affine space of Z/mZ-valued functions on the fundamental group of the surface.
description: 32 pages, 6 figures; v3: exposition improved, typos corrected; v4: Lemma 3.9 corrected; v5: small changes in Def. 4.2 and proof of Lemma 4.5
Secondary Energization in Compressing Plasmoids during Magnetic Reconnection
Creators: name: Hakobyan, Hayk
name: Petropoulou, Maria
name: Spitkovsky, Anatoly
name: Sironi, Lorenzo
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Plasmoids -- magnetized quasi-circular structures formed self-consistently in reconnecting current sheets -- were previously considered to be the graveyards of energetic particles. In this paper, we demonstrate the important role of plasmoids in shaping the particle energy spectrum in relativistic reconnection (i.e., with upstream magnetization $σ_{\rm up} \gg 1$). Using two dimensional particle-in-cell simulations in pair plasmas with $σ_{\rm up}=10$ and $100$, we study a secondary particle energization process that takes place inside compressing plasmoids. We demonstrate that plasmoids grow in time, while their interiors compress, amplifying the internal magnetic field. The magnetic field felt by particles injected in an isolated plasmoid increases linearly with time, which leads to particle energization as a result of magnetic moment conservation. For particles injected with a power-law distribution function, this energization process acts in such a way that the shape of the injected power law is conserved, while producing an additional non-thermal tail $f(E)\propto E^{-3}$ at higher energies followed by an exponential cutoff. The cutoff energy, which increases with time as $E_{\rm cut}\propto\sqrt{t}$, can greatly exceed $σ_{\rm up} m_e c^2$. We analytically predict the secondary acceleration timescale and the shape of the emerging particle energy spectrum, which can be of major importance in certain astrophysical systems, such as blazar jets.
description: 22 pages, 10 figures
Additional file 1 of Critical relationships in managing students’ emotional responses to science (and evolution) instruction
Creators: name: Scharmann, Lawrence C.
name: Grauer, Bette L.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Additional file 1. Selection questionnaire.
Double Copy for Celestial Amplitudes
Creators: name: Casali, Eduardo
name: Puhm, Andrea
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Celestial amplitudes which use conformal primary wavefunctions rather than plane waves as external states offer a novel opportunity to study properties of amplitudes with manifest conformal covariance and give insight into a potential holographic celestial CFT at the null boundary of asymptotically flat space. Since translation invariance is obscured in the conformal basis, features of amplitudes that heavily rely on it appear to be lost. Among these are the remarkable relations between gauge theory and gravity amplitudes known as the double copy. Nevertheless, properties of amplitudes reflecting fundamental aspects of the perturbative regime of quantum field theory are expected to survive a change of basis. Here we show that there exists a well-defined procedure for a celestial double copy. This requires a generalization of the usual squaring of numerators which entails first promoting them to generalized differential operators acting on external wavefunctions, and then squaring them. We demonstrate this procedure for three and four point celestial amplitudes, and give an argument for its validity to all multiplicities.
description: 6 pages; v3: version accepted in PRL
Influence of rural development policy targets on farm efficiency – An efficiency study of labour intensive grape growing family farms
Creators: name: Manevska-Tasevska, Gordana
name: Hansson, Helena
name: Manevska-Tasevska, Gordana
name: Hansson, Helena
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Institutional and Behavioral Economics
subject: Political Economy
subject: Data Envelopment Analysis
subject: rural development program
subject: Tobit regression

description: The aim of this study was to provide an empirical analysis of the performance of Macedonian grape-growing family farms assessed in terms of technical, allocative, and economic efficiency and to relate aspects targeted in the Rural Development Program (RDP) to the efficiency scores. The study was based on a two-step efficiency analysis, applying Data Envelopment Analysis (DEA), in the first step, and Tobit regression analysis in the second step. Data were collected between 2006 and 2008 through face-to-face interviews with 300 grape growers in the Tikvesh vineyard district in Macedonia, each represented by the three-year average of inputs, outputs and prices. The results indicated a large potential for efficiency improvement. The average efficiency was 0.71 for technical efficiency, 0.79 for allocative efficiency and 0.56 for economic efficiency. More efficient farms used smaller areas, irrigated a smaller proportion of total area, used less hired labour, used and paid less for inputs, but produced a larger quantity, with higher value per hectare. RDP measures targeted at stable yield, yield quality, and modernisation of equipment were important for enhancing and improving farm efficiency and consequently, the competitiveness of the entire sector.
Modification of the composition and density of Mercury from late accretion
Creators: name: Hyodo, Ryuki
name: Genda, Hidenori
name: Brasser, Ramon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Late accretion is a process that strongly modulated surface geomorphic and geochemical features of Mercury. Yet, the fate of the impactors and their effects on Mercury's surface through the bombardment epoch are not clear. Using Monte-Carlo and analytical approaches of cratering impacts, we investigate the physical and thermodynamical outcomes of late accretion on Mercury. Considering the uncertainties in late accretion, we develop scaling laws for the following parameters as a function of impact velocity and total mass of late accretion: (1) depth of crustal erosion, (2) the degree of resurfacing, and (3) mass accreted from impactor material. Existing dynamical models indicate that Mercury experienced an intense impact bombardment (a total mass of $\sim 8 \times 10^{18} - 8 \times 10^{20}$ kg with a typical impact velocity of $30-40$ km s$^{-1}$) after $4.5$ Ga. With this, we find that late accretion could remove 50 m to 10 km of the early crust of Mercury, but the change to its core-to-mantle ratio is negligible. Alternatively, the mantles of putative differentiated planetesimals in the early solar system could be more easily removed and their respective core fraction increased, if Mercury ultimately accreted from such objects. Although the cratering is notable for erasing the older geological surface records on Mercury, we show that $\sim 40-50$ wt% of the impactor's exogenic materials, including the volatile-bearing materials, can be heterogeneously implanted on Mercury's surface as a late veneer ($>3\times 10^{18}-1.6 \times 10^{19}$ kg in total). About half of the accreted impactor's materials are vaporized, and the rest is completely melted upon the impact. We expect that the further interplay between our theoretical results and forthcoming surface observations of Mercury, including the BepiColombo mission, will lead us to a better understanding of Mercury's origin and evolution.
description: 19 pages, 7 figures. Accepted for publication in Icarus
Topology and spin dynamics in magnetic molecules
Creators: name: Carretta, S.
name: Santini, P.
name: Amoretti, G.
name: Affronte, M.
name: Ghirri, A.
name: Sheikin, I.
name: Piligkos, S.
name: Timco, G.
name: Winpenny, R. E. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the role of topology and distortions in the quantum dynamics of magnetic molecules, using a cyclic spin system as reference. We consider three variants of antiferromagnetic molecular ring, i.e. Cr$_8$, Cr$_7$Zn and Cr$_7$Ni, characterized by low lying states with different total spin $S$. We theoretically and experimentally study the low-temperature behavior of the magnetic torque as a function of the applied magnetic field. Near level crossings, this observable selectively probes quantum fluctuations of the total spin (''$S$ mixing") induced by lowering of the ideal ring symmetry. We show that while a typical distortion of a model molecular structure is very ineffective in opening new $S$-mixing channels, the spin topology is a major ingredient to control the degree of $S$ mixing. This conclusion is further substantiated by low-temperature heat capacity measurements.
description: 5 pages, 4 figures
A Quantum Network Node with Crossed Optical Fibre Cavities
Creators: name: Brekenfeld, Manuel
name: Niemietz, Dominik
name: Christesen, Joseph Dale
name: Rempe, Gerhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum networks provide unique possibilities for resolving open questions on entanglement and promise innovative applications ranging from secure communication to scalable computation. While two quantum nodes coupled by a single channel are adequate for basic quantum communication tasks between two parties, fully functional large-scale quantum networks require a web-like architecture with multiply connected nodes. Efficient interfaces between network nodes and channels can be implemented with optical cavities. Using two optical fibre cavities coupled to one atom, we here realise a quantum network node that connects to two quantum channels. It functions as a passive, heralded and high-fidelity quantum memory that requires neither amplitude- and phase-critical control fields nor error-prone feedback loops. Our node is robust, fits naturally into larger fibre-based networks, can be scaled to more cavities, and thus provides clear perspectives for a quantum internet including qubit controlled quantum switches, routers, and repeaters.
description: 12 pages, 8 figures (including Supplementary Information)
Using Containers to Create More Interactive Online Training and Education Materials
Creators: name: Barker, Brandon
name: Mehringer, Susan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences
subject: K.3.1; K.3.2; K.6.3; K.4.2; H.5.4

description: Containers are excellent hands-on learning environments for computing topics because they are customizable, portable, and reproducible. The Cornell University Center for Advanced Computing has developed the Cornell Virtual Workshop in high performance computing topics for many years, and we have always sought to make the materials as rich and interactive as possible. Toward the goal of building a more hands-on experimental learning experience directly into web-based online training environments, we developed the Cornell Container Runner Service, which allows online content developers to build container-based interactive edit and run commands directly into their web pages. Using containers along with CCRS has the potential to increase learner engagement and outcomes.
description: 10 pages, 3 figures, PEARC '20 conference paper
Gravitational Lensing & Stellar Dynamics: Dark-Matter and Baryons in Early-type Galaxies to z=1
Creators: name: Koopmans, L. V. E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Gravitational lensing and stellar dynamics provide two complementary, nearly orthogonal, constraints on the mass distribution of early-type lens galaxies. This allows the luminous and dark-matter distribution in higher-redshift (z>0.1) galaxies to be studied beyond the limitations of each individual method. Two surveys have been initiated to compile a large sample of early-type galaxies suitable to lensing and dynamical studies: (1) The Lenses Structure & Dynamics (LSD) Survey and (2) the Sloan Lens ACS (SLACS) Survey. Using spherically symmetric mass models, I illustrated how lensing and dynamical constraints can be used to measure the ``effective'' density slope (gamma') of galaxies inside their Einstein radii and estimate the typical error on this determination. The main results from the LSD survey thus far are: (i) Massive (typically >L_*) early-type galaxies at z=0.5-1 contain a significant fraction f_CDM=0.4-0.7 of dark matter inside their Einstein radii. [The null-hypothesis, f_CDM=0, is excluded at the >99% in all analyzed systems.] (ii) The inner CDM density slope is gamma_CDM=1.3^{+0.2}_{-0.3} (68% CL). (iii) The total density slope gamma' = 1.9 +- 0.1 (with 0.3 rms scatter in the sample). The intrinsic scatter of 15% in gamma' is consistent with local dynamical studies and can lead to a 30% rms scatter in inferred values of H_0 from lens time-delays, when purely isothermal mass models are assumed. Hence, the common practice to assume that lens galaxies are perfectly isothermal should be abandoned, especially in cases where this assumption is critical.
description: 8 pages, 3 figures: To appear (electronically) in the Proceedings of Science, published by SISSA; Conference: "Baryons in Dark Matter Haloes", Novigrad, Croatia, 5-9 October 2004; editors: R.-J. Dettmar, U. Klein, P. Salucci
Additional file 1 of Production and characterization of avian crypt-villus enteroids and the effect of chemicals
Creators: name: Acharya, Mohan
name: Komala Arsi
name: Donoghue, Annie M.
name: Rohana Liyanage
name: Rath, Narayan C.
Publisher: name: figshare
Year: 2020
Subjects: subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer

description: Additional file 1: Table S1. Antibodies, probes, and their targets.
Level-density parameters in superheavy nuclei
Creators: name: Rahmatinejad, A.
name: Bezbakh, A. N.
name: Shneidman, T. M.
name: Adamian, G.
name: Antonenko, N. V.
name: Jachimowicz, P.
name: Kowal, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We systematically study the nuclear level densities of superheavy nuclei, including odd systems, using the single-particle energies obtained with the Woods-Saxon potential diagonalization. Minimization over many deformation parameters for the global minima - ground states and the "imaginary water flow" technique on many deformation energy grids for the saddle points, including nonaxial shapes has been applied. The level density parameters are calculated by fitting the obtained results with the standard Fermi gas expression. The total potential energy and shell correction dependencies of the level-density parameter are analyzed and compared at the ground state and saddle point. These parameters are compared with the results of the phenomenological expression. As shown, this expression should be modified for the saddle points, especially for small excitation energy. The ratio of the level-density parameter at the saddle point to that at the ground state is shown to be crucial for the survival probability of the heavy nucleus.
description: submitted to PRC
Qualitative identification of human retinal pigment epithelial (hRPE) cells attached to microcarriers : a potential new cell therapy for Parkinson’s disease
Creators: name: Flores, Joseph
Publisher: name: University of British Columbia
Year: 2009

description: Parkinson's disease (PD) is a neurodegenerative disorder that is characterized by the degeneration of dopaminergic (DA) neurons in the substantia nigra pars compacta, leading to striatal DA depletion. Cell therapies such as human fetal cell transplants, which replace depleted DA by transplanting DA-producing cells, have been studied as a form of treatment. However, unconvincing clinical results and ethical and logistical hurdles have deemed such therapies unsuccessful. Human retinal pigment epithelial (hRPE) cells have been recently proposed as a tissue transplant alternative for PD. HRPE cells produce L-DOPA as part of the eumelanin pathway, they are easily grown in culture and can be stored for extended periods of time. Furthermore, when attached to gelatin microcarriers (hRPE-GM), immunosuppression is not needed. Recent studies in non-human primates, as well as open label studies in PD patients, have shown complete, / sustained reversal of parkinsonian symptoms without complications. However, there is no data on hRPE cell survival in the host. In this thesis, methods were developed to morphologically characterize hRPE-GM in vitro and to assess its short-term and long-term survival when implanted into the brain. Human RPE cells were grown to confluence in culture, harvested and passively attached to 45-63μm diameter gelatin microcarriers. In vitro HRPE-GM was immunohistochemically (IHC) characterized by using a human specific (NuMA Ab2) and epithelial specific (EMMPRIN) antibody. Next, fourteen male Sprague Dawley 6-OHDA lesioned rats receiving a unilateral striatal hRPEGM implant (without immunosuppression) were processed for IHC and ultrastructural electron microscopy (EM) analyses at various time points post-implant. A histological analysis revealed NuMA- and EMMPRIN-positive cells attached to the microcarriers in vitro and in vivo at various times post-implant. EM confirmed these results: morphologically characterized hRPE cells were seen at 48 hrs and 5 months post-implant. These results support the long-term survival of hRPEGM in the rat without immunosuppression.
A Novel Thruster for Low Reynolds Number
Creators: name: Jiayuan, Zhang
Publisher: name: Zenodo
Year: 2019
Subjects: divergent duct;viscous;vortex;centrifugal;thruster;bladeless

description: This paper proposes a bladeless thruster with a rotating diverging duct.When the duct begins to rotate, viscous force will form vortices around the duct.Then the centrifugal effect of vortex will cause a pressure difference between the inner and outer surfaces, which can provide a forward thrust component to the inclined duct.By means of CFD, the performance of the model in glycerine is studied.It is found that the model can indeed generate a thrust at low Reynolds number. Further observation of the flow field shows that there does exsist a significant pressure difference between the inner and outer surfaces, and the vortices around the wall have backward velocity components as well, thus explaining the formation mechanism of thrust.
Additional file 1 of Health-related quality of life in Norwegian adolescents living with chronic fatigue syndrome
Creators: name: Similä, Wenche Ann
name: Halsteinli, Vidar
name: Helland, Ingrid B.
name: Suvatne, Christer
name: Elmi, Hanna
name: Rø, Torstein Baade
Publisher: name: figshare
Year: 2020
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Supplemental Table 1. HRQoL as measured by generic PedsQL4.0 versus selected factors before, at or after diagnosis Supplemental Table 2. Physical functioning versus selected factors before, at or after diagnosis. Supplemental Table 3. Emotional functioning versus selcted factors before, at or after diagnosis. Supplemental Table 4. Social functioning versus selected factors before, at or after diagnosis. Supplemental Table 5. School functioning versus selected factors before, at or after diagnosis. Supplemental Table 6. Psychosocial functioning versus selected factors before, at or after diagnosis.
delta S = 2 nonleptonic hyperon decays
Creators: name: White, C. G.
name: Burnstein, R. A.
name: Chakravorty, A.
name: Chan, A.
name: Chen, Y. C.
name: Choong, W. S.
name: Clark, K.
name: Dukes, E. C.
name: Durandet, C.
name: Felix, J.
name: Gidal, G.
name: Gu, P.
name: Gustafson, H. R.
name: Ho, C.
name: Holmstrom, T.
name: Huang, M.
name: James, C.
name: Jenkins, C. M.
name: Kaplan, D. M.
name: Lederman, L. M.
name: Leros, N.
name: Longo, M. J.
name: Lopez, F.
name: Lu, L. C.
name: Luebke, W.
name: Luk, K. B.
name: Nelson, K. S.
name: Park, H. K.
name: Perroud, J. -P.
name: Rajaram, D.
name: Rubin, H. A.
name: Teng, P. K.
name: Volk, J.
name: White, S. L.
name: Zyla, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A sensitive search for the rare decays Ω^- \to Λπ^- and Ξ^0 \to p π^- has been performed using data from the 1997 run of the HyperCP (Fermilab E871) experiment. Limits on other such processes do not exclude the possibility of observable rates for |ΔS| = 2 nonleptonic hyperon decays, provided the decays occur through parity-odd operators. We obtain the branching-fraction limits B(Ω^- \to Λπ^-)< 2.9 x 10^{-6} and B(Ξ^0 \to p π^-)< 8.2 x 10^{-6}, both at 90% confidence level.
description: 4 pages, 5 figures, PRL paper
Nuclear Structure Calculations and Modern Nucleon-Nucleon Potentials
Creators: name: Coraggio, L.
name: Covello, A.
name: Gargano, A.
name: Itaco, N.
name: Kuo, T. T. S.
name: Machleidt, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study ground-state properties of the doubly magic nuclei 4He, 16O, and 40Ca employing the Goldstone expansion and using as input four different high-quality nucleon-nucleon (NN) potentials. The short-range repulsion of these potentials is renormalized by constructing a smooth low-momentum potential V-low-k. This is used directly in a Hartree-Fock approach and corrections up to third order in the Goldstone expansion are evaluated. Comparison of the results shows that they are only slightly dependent on the choice of the NN potential.
description: 5 pages, submitted to Physical Review C
Quantum Fluctuations for de Sitter Branes in Bulk AdS(5)
Creators: name: Naylor, Wade
name: Sasaki, Misao
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The vacuum expectation value of the square of the field fluctuations of a scalar field on a background consisting of {\it two} de Sitter branes embedded in an anti-de Sitter bulk are considered. We apply a dimensional reduction to obtain an effective lower dimensional de Sitter space equation of motion with associated Kaluza-Klein masses and canonical commutation relations. The case of a scalar field obeying a restricted class of mass and curvature couplings, including massless, conformal coupling as a special case, is considered. We find that the local behaviour of the quantum fluctuations suffers from surface divergences as we approach the brane, however, if the field is {\it constrained} to its value on the brane from the beginning then surface divergences disappear. The ratio of $$ between the Kaluza-Klein spectrum and the lowest eigenvalue mode is found to vanish in the limit that one of the branes goes to infinity.
description: 14 pages, no figures, to appear in Prog. Theor. Phys
Additional file 1 of A new generation of recombinant polypeptides combines multiple protein domains for effective antimicrobial activity
Creators: name: Roca-Pinilla, Ramon
name: Adrià López-Cano
name: Saubi, Cristina
name: Garcia-Fruitós, Elena
name: Arís, Anna
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Plant Biology

description: Additional file 1: Figure S1. Aminoacidic sequence of JAMF1 for each of the construct domains. Figure S2. Western Blots of JAMF1. (a) Expression time course of JAMF1 at 0, 1, 3 and 5 h post-induction with IPTG in the insoluble and soluble fractions. MWM = Molecular Weight Marker (kDa), IF = Insoluble fraction, SF = Soluble fraction. (b) Western blot of the purified JAMF1 by IMAC (PP) and the purified IBs (PIBs).
Dualisation of the Salam-Sezgin D=8 Supergravity
Creators: name: Dereli, Tekin
name: Yilmaz, Nejat Tevfik
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The first-order formulation of the Salam-Sezgin D=8 supergravity coupled to N vector multiplets is discussed. The non-linear realization of the bosonic sector of the D=8 matter coupled Salam-Sezgin supergravity is introduced by the dualisation of the fields and by constructing the Lie superalgebra of the symmetry group of the doubled field strength.
description: 15 pages
Wannier functions for quasi-periodic finite-gap potentials
Creators: name: Belokolos, E. D.
name: Enolskii, V. Z.
name: Salerno, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we consider Wannier functions of quasi-periodic g-gap ($g\geq 1$) potentials and investigate their main properties. In particular, we discuss the problem of averaging underlying the definition of Wannier functions for both periodic and quasi-periodic potentials and express Bloch functions and quasi-momenta in terms of hyperelliptic $σ$ functions. Using this approach we derive a power series expansion of the Wannier function for quasi-periodic potentials valid at $|x|\simeq 0$ and an asymptotic expansion valid at large distance. These functions are important for a number of applied problems.
Sampling from large matrices: an approach through geometric functional analysis
Creators: name: Rudelson, Mark
name: Vershynin, Roman
Publisher: name: arXiv
Year: 2005
Subjects: subject: Functional Analysis (math.FA)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 15A60, 68W20, 15A18

description: We study random submatrices of a large matrix A. We show how to approximately compute A from its random submatrix of the smallest possible size O(r log r) with a small error in the spectral norm, where r = ||A||_F^2 / ||A||_2^2 is the numerical rank of A. The numerical rank is always bounded by, and is a stable relaxation of, the rank of A. This yields an asymptotically optimal guarantee in an algorithm for computing low-rank approximations of A. We also prove asymptotically optimal estimates on the spectral norm and the cut-norm of random submatrices of A. The result for the cut-norm yields a slight improvement on the best known sample complexity for an approximation algorithm for MAX-2CSP problems. We use methods of Probability in Banach spaces, in particular the law of large numbers for operator-valued random variables.
description: Our initial claim about Max-2-CSP problems is corrected. We put an exponential failure probability for the algorithm for low-rank approximations. Proofs are a little more explained
L'isola che ci abita La isla que nos habita
Creators: name: Della Puppa, Francesco
name: Cano, Osvaldo
Publisher: name: Zenodo
Year: 2024
Subjects: Cuba
Ca' Foscari
Aljeo Carpentier
Lydia, Cabrera
Comics

description: As result of over twenty years of cultural, academic and personal exchanges, woven and consolidated between the Ca’ Foscari University of Venice, the University of Milan and various Cuban universities and research centers, the volume restores the multiplicity of gazes and sensibilities that animate this network of professional, intellectual and human relationships. Transcending disciplinary boundaries – consistently with the impossibility of reducing, within the limited space of the frontiers of the academic field, the richness of these relationships and the intellectual effort that underpins and animates them –, the chapters that compose it delve into the territories of literary and theatrical criticism, travel reportage and comics, sociological theory and cultural studies, cinema and memoirs, mixing these languages and adopting a decentralized perspective, aimed at bringing the two shores of the Atlantic closer and closer.
Supplementary document for Learning enhanced dual-wavelength digital holography for measuring large-height complex step samples - 7357067.pdf
Creators: name: Han, Xianxin
name: Wang, Yuheng
name: Bu, Zhengyang
name: Yuan, Zixin
name: Wu, Yuwang
name: Wu, Xilong
name: Liu, Shengde
name: zhong, Liyun
name: Lu, Xiaoxu
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Nanometrology

description: supporting content
Polymer coated cerium oxide nanoparticles as oxidoreductase-like catalysts
Creators: name: Baldim, Victor
name: Nisha, Yadav
name: Bia, Nicolas
name: Graillot, Alain
name: Loubat, Cedric
name: Singh, Sanjay
name: Karakoti, Ajay S.
name: Berret, Jean-Francois
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Cerium oxide nanoparticles have been shown to mimic oxidoreductase enzymes by catalyzing the decomposition of organic substrates and reactive oxygen species. This mimicry can be found in superoxide radicals and hydrogen peroxides, harmful molecules produced in oxidative stress asso-ciated diseases. Despite the fact that nanoparticle functionalization is mandatory in the context of nanomedicine, the influence of polymer coatings on their enzyme-like catalytic activity is poorly understood. In this work, six polymer coated cerium oxide nanoparticles are prepared by associa-tion of 7.8 nm cerium oxide cores with two poly(sodium acrylate) and four poly(ethylene glycol) (PEG) grafted copolymers with different terminal or anchoring end groups, such as phosphonic acids. The superoxide dismutase-, catalase-, peroxidase- and oxidase-like catalytic activities of the coated nanoparticles were systematically studied. It is shown that the polymer coatings do not af-fect the superoxide dismutase-like, impair the catalase-like and oxidase-like and surprisingly im-proves peroxidase-like catalytic activities of cerium oxide nanoparticles. It is also demonstrated that the particles coated with the PEG-grafted copolymers perform better than the poly(acrylic acid) coated ones as oxidoreductase-like enzymes, a result that confirms the benefit of having phosphon-ic acids as anchoring groups at the particle surface.
description: 23 pages, 8 figures, 3 tables
Nuestro legado: el Buen Vivir, la infaltable alternativa para desestructurar el modelo hegemónico de colonización de la naturaleza
Creators: name: Canaza-Choque, Franklin Américo
Publisher: name: figshare
Year: 2021
Subjects: subject: Anthropology
subject: FOS: Sociology

description: Por debajo de demoledoras expansiones en ultranza, la identificación de supremas amenazas cataclísmicas y de fuerzas detentadoras que resultó la desigualdad o el escalamiento de la pobreza global a niveles inadmisibles. La ruta irrefutable es buscar la manera de resolver estos mega-problemas localizando el punto de inflexión o de todo aquello que lo moviliza para después, hacerlo polvo. En ese sentido, la propuesta de una ruptura con el paradigma hegemónico de desarrollo y la posibilidad de revertir este plan en despliegue, restablecer o reparar el entorno en la era del desarrollo sostenible forman parte de los propósitos clave y alternos del Sumak Kawsay; o, de su homólogo, el Buen Vivir. Dentro de esa dirección, este estudio pretende destacar las ideas desprendidas bajo el término del Buen Vivir, que,
The Star Cluster population of NGC 5253
Creators: name: Cresci, G.
name: Vanzi, L.
name: Sauvage, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a detailed analysis of the star cluster population in the starburst galaxy NGC 5253. Our work is based on HST optical and VLT Ks images. We detect more than 300 clusters, and for all of them we derive the photometry in the V, I and Ks bands and built a color-color V-I/V-Ks diagram. After correction for star contamination, we matched 115 sources in all the three bands V, I and Ks. Comparison of the data points with models shows how most of the sources are affected by a red excess. The ages of the younger clusters are obtained from a HST Halpha image which allows to partially remove the degeneracy between age and extinction and to calculate the screen optical depth toward the clusters. The V and Ks luminosity functions show a marked turnover at M(V)=-7.3 and M(K)=-10.2, with a shape roughly similar to the gaussian distribution of old globular clusters. We convert the luminosity function into a mass function, and find that the clusters younger than 10 Myr show a power law distribution with slope -1.6, while the distribution of the older clusters has a maximum at about 4x10^4 Msun.
description: 9 pages, 5 figures. Accepted for publication in A&A
CPT Violation and Decoherence in Quantum Gravity
Creators: name: Mavromatos, N. E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In these lectures I review, in as much pedagogical way as possible, various theoretical ideas and motivation for violation of CPT invariance in some models of Quantum Gravity, and discuss the relevant phenomenology. Since the subject is vast, I pay particular emphasis on the CPT Violating decoherence scenario for quantum gravity, due to space-time foam. In my opinion this seems to be the most likely scenario to be realised in Nature, should quantum gravity be responsible for the violation of this symmetry. In this context, I also discuss how the CPT Violating decoherence scenario can explain experimental ``anomalies'' in neutrino data, such as LSND results, in agreement with the rest of the presently available data, without enlarging the neutrino sector.
description: 74 pages LATEX, Submitted to Lect. Notes Phys. (Springer), based on invited lectures at the 40th Winter School in Poland, February 2004
Precise predictions for charged Higgs boson pair production in photon-photon collisions
Creators: name: Demirci, Mehmet
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The charged Higgs pair production via photon-photon collisions is investigated in the framework of two Higgs doublet model (2HDM), taking into account a full set of one-loop-level scattering amplitudes, i.e., including electroweak (EW) corrections together with soft and hard QED radiation. The numerical evaluation is carried out for three different scenarios, so-called non-alignment, low-$m_H$ and short-cascade, defined in the presence of the up-to-date experimental constraints and consistent with theoretical constraints as well. The total cross sections of $γγ\rightarrow H^{-}H^{+}$ are scanned over the plane ($m_{ϕ^0},\sqrt{s}$), where $ϕ^0$ is $h^0$ for low-$m_{H^0}$ scenario and $H^0$ for other two scenarios. The regions of the parameter space in which the production rates are sufficiently large are highlighted for each scenario. The production rates in different polarization collision modes of initial beams are also discussed. It can be enhanced up to two-times by oppositely polarized photons at high energies and right-handed polarized photons at low energies. Furthermore, decay channels of the charged Higgs boson are examined for each scenario. It is observed that the one-loop EW corrections, i.e., the virtual plus real radiation corrections, reduce the tree-level cross sections and the relative correction is typically in the range of $-10\%$ to $-30\%$, depending on model parameters.
description: 19 pages (two columns), 30 figures, 2 tables