cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Integration of community development with community and regional planning
Creators: name: Bofah, Robert Kwaku Buor
Publisher: name: University of British Columbia
Year: 2011

description: Developing countries are experiencing social and economic transformation which many countries have already experienced at some periods during the course of their history. In the rural areas of developing countries this transformation has taken the form of 'community development.' Community development is a process and a method by which the government mobilizes the initiative and energy of especially rural communities to improve their living conditions, through its financial and technical assistance. Up to date, over thirty countries have full-fledged community development programmes. As a result of different cultural practices of these countries, the diversity of their political and administrative organizations, their economic conditions, and, a multiplicity of other factors, the programmes have been tailored to suit the particular needs of each country. The programmes can be classified into three main types: integrative, adaptive, and project types. The extent to which the programmes are contributing to the development of rural areas constitutes the central problem which this paper seeks to examine. An assumption made is that, provided the programmes are well designed and administered, they can contribute substantially to rural development. Four important areas of activity of community development programmes; namely, agriculture, land reform, cottage and small-scale industries, and capital or physical facilities, such as roads, schools, health centres, and land reclamation, have critically been examined against the background of community and regional planning. In examining these contributions, it has been discovered that they are on the whole unsatisfactory because of the following reasons: (a) administrative difficulties created by the lack of co-ordination of activities between community development agencies and other government agencies; (b) ineffective community development techniques, such as, 'planning from below' and voluntary contribution of labour. Since the programmes are not making satisfactory contribution to rural development it is suggested that the government should play a dominant role in the planning of programmes. In essence, community development techniques should be integrated with community and regional planning techniques. Using Ghana as a test-case, it is also considered that community and regional planning can be useful, provided administrative difficulties are removed by establishing one central agency for community development under the highest administrator. In conclusion, it is determined that community development, through its multi-purpose programmes, attempts to solve socio-economic problems of rural communities, but its techniques are ineffective to solve these problems. Hence community development techniques must be integrated with the more effective techniques of community and regional planning.
Gamma-ray variability from wind clumping in HMXBs with jets
Creators: name: Owocki, S. P.
name: Romero, G. E.
name: Townsend, R. H. D.
name: Araudo, A. T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the subclass of high-mass X-ray binaries known as "microquasars", relativistic hadrons in the jets launched by the compact object can interact with cold protons from the star's radiatively driven wind, producing pions that then quickly decay into gamma rays. Since the resulting gamma-ray emissivity depends on the target density, the detection of rapid variability in microquasars with GLAST and the new generation of Cherenkov imaging arrays could be used to probe the clumped structure of the stellar wind. We show here that the fluctuation in gamma rays can be modeled using a "porosity length" formalism, usually applied to characterize clumping effects. In particular, for a porosity length defined by h=l/f, i.e. as the ratio of the characteristic size l of clumps to their volume filling factor f, we find that the relative fluctuation in gamma-ray emission in a binary with orbital separation a scales as sqrt(h/pi a) in the "thin-jet" limit, and is reduced by a factor 1/sqrt(1 + phi a/(2 l)) for a jet with a finite opening angle phi. For a thin jet and quite moderate porosity length h ~ 0.03 a, this implies a ca. 10 % variation in the gamma-ray emission. Moreover, the illumination of individual large clumps might result in isolated flares, as has been recently observed in some massive gamma-ray binaries.
description: Accepted for publication in ApJ; 5 pages, 1 figure
Possible superconductivity above 25 K in single crystalline Co-doped BaFe$_{2}$As$_{2}$
Creators: name: Nakajima, Yasuyuki
name: Taen, Toshihiro
name: Tamegai, Tsuyoshi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present superconducting properties of single crystalline Ba(Fe$_{0.9}$Co$_{0.1}$)$_{2}$As$_{2}$ by measuring magnetization, resistivity, upper critical field, Hall coefficient, and magneto-optical images. The magnetization measurements reveal fish-tail hysteresis loop at high temperatures and relatively high critical current density above $J_{c}=10^{5}$ A/cm$^{2}$ at low temperatures. Upper critical field determined by resistive transition is anisotropic with anisotropic parameter $\sim$ 3.5. Hall effect measurements indicate that Ba(Fe$_{0.9}$Co$_{0.1}$)$_{2}$As$_{2}$ is a multiband system and the mobility of electron is dominant. The magneto-optical imaging reveals prominent Bean-like penetration of vortices although there is a slight inhomogeneity in a sample. Moreover, we find a distinct superconductivity above 25 K, which leads us to speculate that higher transition temperature can be realized by fine tuning Co-doping level.
description: 4 pages, 5 figures
Civil society's digitized approach to environmental planning.The case of environmental associations' e-participation platform in Berlin.
Creators: name: Tsakmakidou, Aikaterini
name: Schubert, Manfred
name: Dimitriou, Vasileios
Publisher: name: Zenodo
Year: 2021
Subjects: E-participation
Civil Society
Environmental Planning
Digitalization
Environmental Assocoations

description: In the dawn of innovative digital tools for communication and information exchange the civil society has apparently taken a step forward into this new direction. This paper explores the process for enhancing E-participation in environmental planning and making relevant government decision-making democratically accountable. Environmental issues are dealt in the civil society context with reflexivity that incorporates lay and local knowledge. The case study emphasizes on the BLN e.V e-participation platform “Umwelt-Beteiligung-Berlin” and discusses the extent and impact of Environmental Associations involvement in sustainable environmental planning. BLN e.V was created as a hub for all Berlins registered Nature conservation/Environment protection associations as well as citizens' initiatives on environmental projects. The platform was developed in cooperation with the nature conservation associations recognized in Brandenburg and Lower Saxony. BLN working group is supported by volunteers in the Federal Ecological Volunteers Service (ÖBFD). The paper analyses the case study impact and concludes by discussing how the concept can be proliferated on EU, national, regional and local level and the prospects of future research.
Intraosseous epidermal cysts
Creators: name: Bello Baez, AdÃ¡N
Publisher: name: EURORAD
Year: 2015
Subjects: subject: Musculoskeletal bone
subject: Musculoskeletal system
subject: Trauma
subject: Experimental
subject: Image manipulation / Reconstruction
subject: MR
subject: MR-Diffusion/Perfusion
subject: Plain radiographic studies
subject: Diagnostic procedure
subject: Pathology
subject: Trauma

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 35 years
description: Clinical History: 35-year-old female patient presents to our emergency department with swelling of the big toe with redness and pain. Patient has underwent multiple surgeries at this toe because of ingrown toenail; last surgery took place 1 year previously. Final Diagnosis: intraosseous epidermoid cyst
The present-day galaxy population in spiral galaxies
Creators: name: Peletier, Reynier
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Although there are many more stellar population studies of elliptical and lenticular galaxies, studies of spiral galaxies are catching up, due to higher signal to noise data on one hand, and better analysis methods on the other. Here I start by discussing some modern methods of analyzing integrated spectra of spiral galaxies, and comparing them with traditional methods. I then discuss some recent developments in our understanding of the stellar content of spiral galaxies, and their associated dust content. I discuss star formation histories, radial stellar population gradients, and stellar populations in sigma drops.
description: 8 pages, Proceedings of 'Probing Stellar Populations out to the Distant Universe', Cefalu, Italy, Sep 7-19, 2008, AIP Conf. Proc. Series. Higher resolution version available at http://www.astro.rug.nl/~peletier/rfpcefalu.pdf
Additional file 1 of Re-analysis of ventilator-free days (VFD) in acute respiratory distress syndrome (ARDS) studies
Creators: name: Verghis, Rejina Mariam
name: McDowell, Cliona
name: Blackwood, Bronagh
name: Lee, Bohee
name: McAuley, Daniel F.
name: Clarke, Mike
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Biotechnology
Biological Sciences not elsewhere classified
Science Policy

description: Additional file 1: Supplemental Table S1. HARP2 Study: Logit-Poisson Hurdle Model.
Cosmological parameters after WMAP5: forecasts for Planck and future galaxy surveys
Creators: name: Colombo, L. P. L.
name: Pierpaoli, E.
name: Pritchard, J. R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Planck satellite is expected to improve the measurement of most cosmological parameters by several factors with respect to current WMAP results. The actual performance may depend upon various aspects of the data analysis. In this paper we analyse the impact of specifics of the data analysis on the actual final results. We also explore the synergies in combining Planck results with future galaxy surveys. We find that Planck will improve constraints on most cosmological parameters by a factor 3-4 and on the tensor-to-scalar ratio r by a factor 9. Also inflationary parameters, like r, n_s and n_run, are no longer degenerate. The tensor spectral index, however, is little constrained. A combination of the 70 to 143 GHz channels will contain ~90% of all possible information, with 143 GHz polarisation information carrying about half of the constraining power on r. Also, the error on r degrades by a factor 2 if no B modes are included in the analysis. High-l temperature information is essential for determination of n_s and Ω_b, while improving noise properties increase the l-range where Planck would be cosmic variance limited in polarisation, with a significant improvement on the determination of r, τand A_s. However, a sub-percent difference in the FWHM used in the data analysis with respect to the one in the map will result in a bias for several parameters. Finally, Planck will greatly help future missions like LSST and CIP reach their potentials by providing tight constraints on parameters like n_s and n_run. Considering Planck together with these probes will help in breaking degeneracies between Ω_K and Ω_Λor Ω_dm and f_ν, resulting in improvements of several factors in the error associated to these parameters.
description: 16 pages, 15 figures, improved discussion of likelihood approssimation, added references
Quantum Adiabatic Brachistochrone
Creators: name: Rezakhani, A. T.
name: Kuo, W. -J.
name: Hamma, A.
name: Lidar, D. A.
name: Zanardi, P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We formulate a time-optimal approach to adiabatic quantum computation (AQC). A corresponding natural Riemannian metric is also derived, through which AQC can be understood as the problem of finding a geodesic on the manifold of control parameters. This geometrization of AQC is demonstrated through two examples, where we show that it leads to improved performance of AQC, and sheds light on the roles of entanglement and curvature of the control manifold in algorithmic performance.
description: 4 pages, 2 figures
Entropy of Partitions on Sequential Effect Algebras
Creators: name: Jiamei, Wang
name: Junde, Wu
name: Minhyung, Cho
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: By using the sequential effect algebra theory, we establish the partitions and refinements of quantum logics and study their entropies.
LISA long-arm interferometry
Creators: name: Thorpe, James Ira
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Laser Interferometer Space Antenna (LISA) will observe gravitational radiation in the milliHertz band by measuring picometer-level fluctuations in the distance between drag-free proof masses over baselines of approximately five million kilometers. The measurement over each baseline will be divided into three parts: two short-arm measurements between the proof masses and a fiducial point on their respective spacecraft, and a long-arm measurement between fiducial points on separate spacecraft. This work focuses on the technical challenges associated with these long-arm measurements and the techniques that have been developed to overcome them.
description: 13 pages, 5 figures, Submitted to C&QG for proceedings of 8th Eduardo Amaldi Conference
Impact of Random Loss on TCP Performance in Mobile Ad hoc Networks (IEEE 802.11), A Simulation-Based Analysis
Creators: name: Qamar, Shamimul
name: Manoj, Kumar
Publisher: name: arXiv
Year: 2010
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Initially TCP was designed with the notion in mind that wired networks are generally reliable and any segment loss in a transmission is due to congestion in the network rather than an unreliable medium (The assumptions is that the packet loss caused by damage is much less than 1 percent) . This notion doesnt hold in wireless parts of the network. Wireless links are highly unreliable and they lose segments all the time due to a number of factors. Very few papers are available which uses TCP for MANET. In this paper, an attempt have been made to justify the use of TCP variants (Tahoe and Reno) for loss of packet due to random noise introduces in the MANET. For the present analysis the simulation has been carried out for TCP variants (Tahoe and Reno) by introduces 0, 10, 20 and 30 percent noise. The comparison of TCP variants is made by running simulation for 0, 10, 20 and 30 percent of data packet loss due to noise in the transmission link and the effect of throughput and congestion window has been examined. During the simulation we have observed that throughput has been decreased when a drop of multiple segments happens, further we have observed in the case of TCP variant (Reno) throughput is better at 1 percent (Figure 5) which implies a network with short burst of error and low BER, causing only one segment to be lost. When multiple segments are lost due to error prone nature of link, Tahoe perform better than Reno (Figure 13), that gives a significant saving of time (64.28 percent) in comparison with Reno (Table 4). Several simulations have been run with ns 2 simulator in order to acquire a better understanding of these TCP variants and the way they perform their function. We conclude with a discussion of whether these TCP versions can be used in Mobile Ad hoc Network.
description: IEEE format, International Journal of Computer Science and Information Security, IJCSIS January 2010, ISSN 1947 5500, http://sites.google.com/site/ijcsis/
Modulating development and maturation of human embryonic stem cell-derived midbrain dopaminergic neurons using growth and survival factors
Creators: name: SIBUEA, SHANTI MARLINA
Publisher: name: Monash University
Year: 2023
Subjects: Regenerative medicine (incl. stem cells)
Pharmaceutical sciences

description: Various brain diseases, including Parkinson's disease (PD), can occur when the dopaminergic neurons in the midbrain are damaged. Pluripotent stem cells (PSCs) have great potential for developing new therapies because they can self-renew and differentiate into different types of cells. However, effectively using PSCs in this context requires a deep understanding of the molecular mechanisms that control the differentiation of midbrain dopaminergic neurons (mDAs). Therefore, our goal was to guide the development of mDA neurons from PSCs and study the changes in gene expression profiles associated with the mDA phenotype over time. This research has contributed to our understanding of stem cell-based disease modelling for treating Parkinson's disease, specifically by examining the critical regulatory proteins and hierarchical networks involved in mDA neuron differentiation.
Predictability on finite horizon for processes with exponential decrease of energy on higher frequencies
Creators: name: Dokuchaev, Nikolai
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optimization and Control (math.OC)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 60G25, 93E10, 42B30

description: The paper presents sufficient conditions of predictability for continuous time processes in deterministic setting. We found that processes with exponential decay on energy for higher frequencies are predictable in some weak sense on some finite time horizon defined by the rate of decay. Moreover, this predictability can be achieved uniformly over classes of processes. Some explicit formulas for predictors are suggested.
description: 11 pages
Amine metabolism in mycobacteria isolated from poikilothermic animals.
Creators: name: Evelyn, Trevor Patrick Todd
Publisher: name: University of British Columbia
Year: 2011

description: Three mycobacterial strains isolated from fish were tested for their ability to metabolize various amines, supplied individually as sources of carbon. A series of six aliphatic and two cyclic amines was used. Growth occurred only in putreseine. The ability to oxidize putrescine was enhanced by growing the cells in the presence of this compound. One mycobacterial strain appeared to possess some ability to oxidize putrescine without pre-exposure to the compound. However, when cells of this strain were examined for the presence of putrescine and related polyamines, no such compounds were detected. In the mycobacterial strains tested, putrescine did not appear to affect the rate of endogenous respiration. Therefore, in reporting oxygen consumption due to putrescine, the endogenous oxygen consumption has been subtracted from the total oxygen uptake. During the oxidation of putrescine, the oxygen uptake curves "broke" at a point corresponding to approximately 43% of the maximum level of oxidation. Thereafter, very small increases in the level of oxidation occurred, so that by the end of the experiment, over 50% of the molecule appeared to be assimilated. Up to 69-76% of the amino-nitrogen of the putrescine molecule was released as ammonia during the reaction, the rest of the nitrogen being assimilated. Measurement of carbon dioxide production using 1,4-C¹⁴ putrescine revealed that under CO₂-free conditions, at least 1.5 μM of carbon dioxide were released per μM of putrescine. When cells were incubated with 1,4-C¹⁴ putrescine, 25% of the radioactivity was assimilated. The remaining radioactivity was liberated as C¹⁴O₂. Chemical fractionation of the cells indicated that fractions containing lipid, nucleic acid and protein were labelled. Cell-free extracts obtained from putrescine-adapted cells contained four enzymes responsible for the conversion of putrescine to succinic acid. The enzymes occurred in the 10,000 X G supernatants of the cell-free extracts and were all active at pH 9.0. Putrescine was oxidatively deaminated to yield Δ' -pyrroline. The latter compound was then oxidized to ɣ-aminobutyric acid by a dehydrogenase enzyme requiring NAD or NADP. Gamma-aminobutyric acid underwent a transamination with α-ketoglutaric acid to yield succinic semialdehyde and glutamic acid. Succinic semialdehyde was oxidized to succinic acid by an NAD- or NADP- requiring dehydrogenase. The specificity for putrescine, shown by the tested mycobacterial strains, is discussed.
$1/f^α$ noise and integrable systems
Creators: name: Barba, J. C.
name: Finkel, F.
name: Gonzalez-Lopez, A.
name: Rodriguez, M. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: An innovative test for detecting quantum chaos based on the analysis of the spectral fluctuations regarded as a time series has been recently proposed. According to this test, the fluctuations of a fully chaotic system should exhibit 1/f noise, whereas for an integrable system this noise should obey the 1/f^2 power law. In this letter, we show that there is a family of well-known integrable systems, namely spin chains of Haldane-Shastry type, whose spectral fluctuations decay instead as 1/f^4. We present a simple theoretical justification of this fact, and propose an alternative characterization of quantum chaos versus integrability formulated directly in terms of the power spectrum of the spacings of the unfolded spectrum.
description: 5 pages, 3 figures, RevTeX
Polarization of ultrashort optical pulses in semiconductor superlattice in a presence of magnetic field
Creators: name: Belonenko, M. B.
name: Nelidina, E. N.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The system of equations describing an ultrashort optical pulses propagation in semiconductor superlattice with applied magnetic field was obtained based on Boltzmann equation in the relaxation-time approximation for the single electron distribution function and coupled Maxwell equations for the electromagnetic field. It was demonstrated that an original linear-polarized optical pulse initiates an orthogonal polarization in the field of a sample. The propagation dynamics of initiated and initial pulses in the sample was investigated. The effects of the lattice geometry have been elicited.
description: 9 pages, 5 figures
experimental results
Creators: name: Wang, Yin
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 340302
subject: Macromolecular materials

description: All the data were tested by the German Netzsch STA449F5 instrument. Four different heating rates of 5, 10, 20 and 30 K/min were adopted to test the single-component polypropylene, polystyrene, polyvinyl chloride and mixed plastics. Before the experiment, the temperature and sensitivity of the instrument were tested first, and then baseline correction was carried out using blank alumina dry powder. The six plastics were heated from room temperature to 800℃, and the weight loss changes during the plastic combustion process were observed.
The Taurus Spitzer Survey: New Candidate Taurus Members Selected Using Sensitive Mid-Infrared Photometry
Creators: name: Rebull, L. M.
name: Padgett, D. L.
name: McCabe, C. -E.
name: Hillenbrand, L. A.
name: Stapelfeldt, K. R.
name: Noriega-Crespo, A.
name: Carey, S. J.
name: Brooke, T.
name: Huard, T.
name: Terebey, S.
name: Audard, M.
name: Monin, J. -L.
name: Fukagawa, M.
name: Guedel, M.
name: Knapp, G. R.
name: Menard, F.
name: Allen, L. E.
name: Angione, J. R.
name: Baldovin-Saavedra, C.
name: Bouvier, J.
name: Briggs, K.
name: Dougados, C.
name: Evans, N. J.
name: Flagey, N.
name: Guieu, S.
name: Grosso, N.
name: Glauser, A. M.
name: Harvey, P.
name: Hines, D.
name: Latter, W. B.
name: Skinner, S. L.
name: Strom, S.
name: Tromp, J.
name: Wolf, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report on the properties of pre-main-sequence objects in the Taurus molecular clouds as observed in 7 mid- and far-infrared bands with the Spitzer Space Telescope. There are 215 previously-identified members of the Taurus star-forming region in our ~44 square degree map; these members exhibit a range of Spitzer colors that we take to define young stars still surrounded by circumstellar dust (noting that ~20% of the bonafide Taurus members exhibit no detectable dust excesses). We looked for new objects in the survey field with similar Spitzer properties, aided by extensive optical, X-ray, and ultraviolet imaging, and found 148 candidate new members of Taurus. We have obtained follow-up spectroscopy for about half the candidate sample, thus far confirming 34 new members, 3 probable new members, and 10 possible new members, an increase of 15-20% in Taurus members. Of the objects for which we have spectroscopy, 7 are now confirmed extragalactic objects, and one is a background Be star. The remaining 93 candidate objects await additional analysis and/or data to be confirmed or rejected as Taurus members. Most of the new members are Class II M stars and are located along the same cloud filaments as the previously-identified Taurus members. Among non-members with Spitzer colors similar to young, dusty stars are evolved Be stars, planetary nebulae, carbon stars, galaxies, and AGN.
description: Accepted to ApJS. Two large online-only figures available with the preprint here: http://web.ipac.caltech.edu/staff/rebull/research.html
HYPPOCAMPUS: A HYPERCARD GRAPHIC INTERFACE TOWARD CAMAC & VME
Creators: name: A. MARTINI
name: A. STECCHI
name: L. TRASATTI
Publisher: name: INFN Open Access Repository
Year: 1991

description: We have implemented the standard ESONE CAMAC routines[1] as Hypercard[2] external functions (XFCN's), using MPW 3.1 PASCAL[3]. The routines are available in a demo stack, HYPPOCAMPUS (HYPercard POwer for CAMac PUShbutton), which is the software equivalent of the CAMAC Manual Controller. A simple VME interface is also provided. This work continues our attempt to use Hypercard as a powerful and simple human interface tool for data acquisition and control.
X-RAY MAMMOGRAPHY WITH SYNCHROTRON RADIATION
Creators: name: E. BURATTINI
name: M. GAMBACCINI
name: M. MARZIANI
name: O. RIMONDI
name: P. L. INDOVINA
name: M. POCEK
name: G. SIMONETTI
name: M. BENASSI
name: C. TIRELLI
name: R. PASSARIELLO
Publisher: name: INFN Open Access Repository
Year: 1992

description: For the first time in the literature, radiographs of breast phantoms were obtained using several monochromatic synchrotron radiation x-ray beams of selected energy in the range from 14 to 26 KeV. In addition, after optimization of the photon energy as a function of the phantom thickness, several mammographs were obtained on surgically removed human breast speciments containing cancer nodules. Comparison between radiographs using a conventional x-ray unit and those obtained of the same specimens utilizing synchrotron monochromatic beams clearly shows that higher contrast and better resolution can be achieved with synchrotron radiation. These results demonstrate the possibility of obtaining radiographs of excises human breast tissue containing a greater amount of radiological information using synchrotron radiation.
The ρ^0->π^+π^-π^+π^- Decay in Effective Lagrangians Incorporating Vector-Mesons
Creators: name: A. Bramon
name: A. Grau
name: G. Pancheri
Publisher: name: INFN Open Access Repository
Year: 1993

description: The ρ^0->π^+π^-π^+π^- branching ratio is predicted to be (0.5+-0.1) x 10^-4, (1.7+-0.2) x 10^-4 and (4.0+-0.5) x 10^-4 in the 'Hidden Symmetry' scheme, conventional Vector-Meson Dominance and the 'Massive Yang-Mills' approach, respectively. The corresponding experimental upper bound is 2 x  10^-4.
М. Ягодинська. Хрести та іконки княжої доби із Західного Поділля
Creators: name: Ягодинська, Марина
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 430101
subject: Archaeological science

description: Studia archaeologica / Науковий журнал з проблем археології та давньої історії України. – Львів, 1993.
Effective Chiral Lagrangians with an SU(3)-Broken Vector-Meson Sector
Creators: name: A. Bramon
name: A. Grau
name: G. Pancheri
Publisher: name: INFN Open Access Repository
Year: 1994

description: The accuracy of effective chiral lagrangians including vector-mesons as (hidden symmetry) gauge fields is shown to be improved by including SU(3)-breaking in the vector-meson sector. The masses (Mv), coupling to the phton field (fvγ) and pseudoscalar pairs (gvpp) are all consistently described in terms of two parameters, which also fit the values for the pseudoscalar decay constants, fp, and charge radii, < r^2_p >. The description of the latter is further improved when working in the context of chiral perturbation theory.
Mass and heat balances for biological nitrogen removal in an activated sludge process: to couple or not to couple?
Creators: name: Corbala-Robles, L.
name: Volcke, E.I.P.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Space Science
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Models adapt constantly, usually increasing the degree of detail describing physical phenomena. In water resource recovery facilities, models based on mass and/or heat balances have been used to describe and improve operation. While both mass and heat balances have proven their worth individually, the question arises to which extent their coupling, which entails increased model complexity, warrants the supposedly more precise simulation results. In order to answer this question, the need for and effects of coupling mass and heat balances in modelling studies were evaluated in this work for a biological nitrogen removal process treating highly concentrated wastewater. This evaluation consisted on assessing the effect of the coupling of mass and heat balances on the prediction of: (1) nitrogen removal efficiency; (2) temperature; (3) heat recovery. In general, mass balances are sufficient for evaluating nitrogen removal efficiency and effluent nitrogen concentrations. If one desires to evaluate the effect of temperature changes (e.g. daily, weekly, seasonally) on nitrogen removal efficiency, the use of temperature profiles as an input variable to a mass balance-based model is recommended over the coupling of mass and heat balances. In terms of temperature prediction, considering a constant biological heat generation term in the heat balance model provides sufficient information – i.e. without the coupling of mass and heat balances. Also, for evaluating the heat recovery potential of the system, constant biological heat generation values provide valuable information, at least under normal operating conditions, i.e. when the solids retention time is large enough to maintain nitrification.
Plane sextics with a type $\bold E_8$ singular point
Creators: name: Degtyarev, Alex
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H45, 14H30, 14H50

description: We construct explicit geometric models for and compute the fundamental groups of all plane sextics with simple singularities only and with at least one type $\bold E_8$ singular point. In particular, we discover four new sextics with nonabelian fundamental groups; two of them are irreducible. The groups of the two irreducible sextics found are finite. The principal tool used is the reduction to trigonal curves and Grothendieck's {\it dessins d'enfants}
Local Structure and Size Effects in Nanophase Palladium: An X-Ray Absorption Study
Creators: name: S. De Panfilis
name: F. D' Acapito
name: V. Haas
name: H. Konrad
name: J. Weissmüller
name: F. Boscherini
Publisher: name: INFN Open Access Repository
Year: 1995

description: The connection between local structure and the grain size distribution in nanophase palladium is studied by X-ray absorption spectroscopy (XAFS) and X-ray diffraction. XAFS shows that there is a reduced average coordination number in all samples; this reduction is compatible with a size effect, contradicting previous XAFS measurements.
Kinetic and mechanistic study of dye sorption onto renewable resource-based doped carbon prepared by a microwave-assisted method
Creators: name: Macchi, Samantha
name: Siraj, Noureen
name: Viswanathan, Tito
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
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: Inorganic Chemistry
subject: Plant Biology

description: Herein, a facile synthesis of heteroatom doped biochar is reported. The material is characterized and analyzed in detail for its application as a low-cost adsorbent for removal of a toxic dye pollutant, Methylene Blue (MB), from aqueous solution. Synthesized material showed enhanced surface area compared to parent biochar (458 to802 m2g−1) The adsorbent’s performance is investigated using batch adsorption methods with experiments conducted at varying conditions of adsorbent dosage, initial dye concentration (50–500 mg/L), and pH (3–11). Adsorption of MB onto two different adsorbents such as biochar (BC) and doped BC, is fitted using Langmuir and Freundlich isotherms with the experimental data correlating most accurately with Langmuir modelling, indicating chemisorption mechanism of dye onto adsorbent. Maximum monolayer equilibrium adsorption from Langmuir equation is found to be 129.8 and 357.1 mg/g for pure BC and Phosphorus and Nitrogen co-doped BC (PNBC), respectively. Pseudo-first and -second order kinetic models are applied to investigate the adsorption mechanism of PNBC. Adsorption mechanism followed pseudo-second order model well, with correlation coefficients very close to 1. The results indicate that microwave-assisted heteroatom co-doped BC showed superior performance as adsorbent for the adsorption of MB dye from aqueous solution.
Maximum Spin of Black Holes Driving Jets
Creators: name: Benson, Andrew J.
name: Babul, Arif
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: Unbounded outflows in the form of highly collimated jets and broad winds appear to be a ubiquitous feature of accreting black hole systems. The most powerful jets are thought to derive a significant fraction, if not the majority, of their power from the rotational energy of the black hole. Whatever the precise mechanism that causes them, these jets must therefore exert a braking torque on the black hole. We calculate the spin-up function for an accreting black hole, accounting for this braking torque. We find that the predicted black hole spin-up function depends only on the black hole spin and dimensionless parameters describing the accretion flow. Using recent relativistic magnetohydrodynamical numerical simulation results to calibrate the efficiency of angular momentum transfer in the flow, we find that an ADAF flow will spin a black hole up (or down) to an equilibrium value of about 96% of the maximal spin value in the absence of jets. Combining our ADAF system with a simple model for jet power, we demonstrate that an equilibrium is reached at approximately 93% of the maximal spin value, as found in the numerical simulation studies of the spin-up of accreting black holes, at which point the spin-up of the hole by accreted material is balanced by the braking torque arising from jet production. Our model also yields a relationship between jet efficiency and black hole spin that is in surprisingly good agreement with that seen in the simulation studies, indicating that our simple model is a useful and convenient description of ADAF inflow - jet outflow about a spinning black hole for incorporation in models of the formation and evolution of galaxies, groups and clusters of galaxies.
description: 15 pages, 5 figures, accepted for publication in MNRAS. Corrected errors in jet efficiency formula in text and some equations in Appendices. Errors affected text only, results are unchanged
Ethische Werte bei Storm : Was tritt an die Stelle einer gottbezogenen Sittlichkeit?
Creators: name: Brockhaus, Henrich Ernst Rudolf
Publisher: name: University of British Columbia
Year: 2011

description: In der vorliegenden Arbeit wird gezeigt, wie der Dichter der zweiten Hälfte des neunzehnten Jahrhunderts geistig in eine Isolierung gerät, die es ihm nicht mehr erlaubt, sittliche Werte der Vergangenheit unbesehen hinzunehmen; er muβ sie vielmehr untersuchen und sich gegebenenfalls neue Werte schaffen. Für Storm bedeutet dies die bewuβte Lösung vom christlichen Glauben, der in einigen Novellen als Zeichen menschlicher Unreife bewertet und überwunden wird. An die Stelle der verlorenen göttlichen Liebe tritt die menschliche, an die Stelle der menschlichen Abhängigkeit von Gott tritt die Suche nach dem Mitmenschen, die gegenseitige Abhängigkeit durch das Band der Liebe. Die Ehe verleiht einem solchen Bund Ausschlieβlichkeit, Dauer und Tiefe; sie schenkt dem Menschen einen Halt im Leben. Nur auf diesem Fundament kann sich die Familie gründen und erhalten. In der Familie findet der Einzelne den zeitlichen Anschluβ an Vergangenheit und Zukunft, reicht damit über die Begrenzung der eigenen Lebenszeit hinaus. Hat der Mensch im Rahmen der Ehe und der Familie einen organisch gegründeten Platz gefunden, dann darf und soll er sich im Geist der Nächstenliebe seiner Umwelt tätig annehmen. Hier, wie in der Ehe, reift der Mensch zur vollwertigen Persönlichkeit, wenn er sich ohne Vorbehalt dem andern gibt, auch wenn die Umwelt nicht zu dem gleichen Dienst bereit ist. Storm gibt für das sittliche Bemühen des Menschen, für dessen Suchen nach einem organisch-harmonisch bestimmten Platz nur einen Grund: Alles geschieht, damit das Leben an sich erhalten bleibe und gefördert werde. Die Ewigkeit ist dem Menschen verlorengegangen, da heiβt es, die einem zur Verfügung stehende Lebensspanne auszuweiten, einmal durch den Kontakt zura Mitmenschen, zum an-deren durch die Verbindung im Rahmen der Familie zur Vergangenheit und zur Zukunft. Das Leben an sich wird zum höchsten sittlichen Wert, alle anderen Werte, einschlieβlich der Liebe, finden nur in ihrer lebenserhaltenden Funktion einen positiv-ethischen Gehalt.
A Star in the M31 Giant Stream: the Highest Negative Stellar Velocity Known
Creators: name: Caldwell, N.
name: Morrison, H.
name: Kenyon, S. J.
name: Schiavon, R.
name: Harding, P.
name: Rose, J. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report on a single star, B030D, observed as part of a large survey of objects in M31, which has the unusual radial velocity of -780 km/s. Based on details of its spectrum, we find that the star is an F supergiant, with a circumstellar shell. The evolutionary status of the star could be one of a post-mainsequence close binary, a symbiotic nova, or less likely, a post-AGB star, which additional observations could help sort out. Membership of the star in the Andromeda Giant Stream can explain its highly negative velocity.
description: to appear in AJ
Interaction of High Energy Muons and Hadrons with A Large Aluminium Spherical Resonant Detector
Creators: name: G. Mazzitelli
name: M. A. Papa
Publisher: name: INFN Open Access Repository
Year: 1996

description: The aim of this work is to evaluate the effects of high energy hadrons and muons on a large spherical aluminum detector of 3m of diameter. The interaction of single hadrons and muons has been simulated and the average counting rate has been calculated. Analytical estimation of Extensive Air Shower and Multihadron Shower effect is also reported.
Contributions of stochastic background fields to the shear and bulk viscosities of the gluon plasma
Creators: name: Antonov, Dmitri
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The contributions of confining as well as nonconfining nonperturbative self-interactions of stochastic background fields to the shear and bulk viscosities of the gluon plasma in SU(3) Yang-Mills theory are calculated. The nonconfining self-interactions change (specifically, diminish) the values of the shear and bulk viscosities by 15%, that is close to the 17% which the strength of the nonconfining self-interactions amounts of the full strength of nonperturbative self-interactions. The ratios to the entropy density of the obtained nonperturbative contributions to the shear and bulk viscosities are compared with the results of perturbation theory and the predictions of {\cal N}=4 SYM.
description: 17 pages, 2 figures
Dear, Finuda, Kloe:  Kaonic Atoms, Hypernuclei and CP-Violation at the DAFNE F-Factory
Creators: name: S. Bianco
Publisher: name: INFN Open Access Repository
Year: 1997

description: Physics at DAFNE, the new Frascati e^+e^- machine, is reviewed, as well as the experiments: DEAR - search for KN  exotic atoms, FINUDA - spectroscopy and decays of hypernuclei, and KLOE - a multipurpose detector designed for detecting direct CP violation.
Governance, Ethics and Leadership in Papua New Guinea - A Personal Perspective, Part 1
Creators: name: Ila Geno, Chief
Publisher: name: Canberra, ACT: Dept. of Pacific Affairs, Research School of Pacific and Asian Studies, The Australian National University
Year: 2018

description: This two-part series is based on a speech given on 28 May 2018 at the Australia Awards Women’s Leadership Initiative at the Parliament of New South Wales in Sydney, Australia. In this paper, the author talks about the important subjects of governance, ethics and leadership in Papua New Guinea (PNG). The paper revolves around personal and practical experiences acquired by the author over the years in their various capacities: firstly as a public servant and secondly as a private citizen.
NESTOR:an Underwater Neutrino Observatory in the Ionian Sea
Creators: name: NESTOR Collaboration
Publisher: name: INFN Open Access Repository
Year: 1998

description: Deep underwater high energy neutrino detection is a very promising field in both elementary particle physics and astrophysics. On one side, the energy range of ground based accelerators cannot be extended much more respect to the present, leaving only astronomical sources for future investigations. In the astrophysics field, neutrinos are the tool to explore further in the universe due to their low interactions. By the same token, the experimental problems for a neutrino detector are enormous. The Cerenkov effect is practically the only possible tool, because it uses sea water both as shield and as detector. NESTOR is the first step toward a full fledged deep underwater neutrino experiment. While its area, of the order of 100000 m^**2, cannot hope to identify all possible celestial sources, it is nevertheless a necessary step toward the "Km^**3" experiment. The first deployment tests have already been performed, proving the feasibility of the mechanical design, and the electronics is almost completely ready. Additional tests are scheduled fir this autumn and next year will see a relevant part of the experiment installed at the bottom of the Ionian see.
Effective area calibration of the reflection grating spectrometers of XMM-Newton. II. X-ray spectroscopy of DA white dwarfs
Creators: name: Kaastra, J. S.
name: Lanz, T.
name: Hubeny, I.
name: Paerels, F. B. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: White dwarf spectra have been widely used as a calibration source for X-ray and EUV instruments. The in-flight effective area calibration of the reflection grating spectrometers (RGS) of XMM-Newton depend upon the availability of reliable calibration sources. We investigate how well these white dwarf spectra can be used as standard candles at the lowest X-ray energies in order to gauge the absolute effective area scale of X-ray instruments. We calculate a grid of model atmospheres for Sirius B and HZ 43A, and adjust the parameters using several constraints until the ratio of the spectra of both stars agrees with the ratio as observed by the low energy transmission grating spectrometer (LETGS) of Chandra. This ratio is independent of any errors in the effective area of the LETGS. We find that we can constrain the absolute X-ray spectrum of both stars with better than 5 % accuracy. The best-fit model for both stars is close to a pure hydrogen atmosphere, and we put tight limits to the amount of helium or the thickness of a hydrogen layer in both stars. Our upper limit to the helium abundance in Sirius B is 4 times below the previous detection based on EUVE data. We also find that our results are sensitive to the adopted cut-off in the Lyman pseudo-continuum opacity in Sirius B. We get best agreement with a long wavelength cut-off. White dwarf model atmospheres can be used to derive the effective area of X-ray spectrometers in the lowest energy band. An accuracy of 3-4 % in the absolute effective area can be achieved.
description: 15 pages, 7 figures, accepted for publication in Astronomy & Astrophysics, main journal