cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Development of high-gain gaseous photomultipliers for the visible spectral range
Creators: name: Lyashenko, A. V.
name: Breskin, A.
name: Chechik, R.
name: Santos, J. M. F. Dos
name: Amaro, F. D.
name: Veloso, J. F. C. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We summarize the development of visible-sensitive gaseous photomultipliers, combining a semitransparent bi-alkali photocathode with a state-of-the-art cascaded electron multiplier. The latter has high photoelectron collection efficiency and a record ion blocking capability. We describe in details the system and methods of photocathode production and characterization, their coupling with the electron multiplier and the gaseous-photomultiplier operation and characterization in a continuous mode. We present results on the properties of laboratory-produced K$_2$CsSb, Cs$_3$Sb and Na$_2$KSb photocathodes and report on their stability and QE in gas; K$_2$CsSb photocathodes yielded QE values in Ar/CH$_4$(95/5) above 30% at wavelengths of 360-400 nm. The novel gaseous photomultiplier yielded stable operation at gains of 10$^5$, in continuous operation mode, in 700 Torr of this gas; its sensitivity to single photons was demonstrated. Other properties are described. The successful detection of visible light with this gas-photomultiplier pave ways towards further development of large-area sealed imaging detectors, of flat geometry, insensitive to magnetic fields, which might have significant impact on light detection in numerous fields.
description: 22 pages, 12 figures, for submission to JINST
Social services for mental patients and their families : an examination of social work functions, and criteria for the establishment of a social service department in a Saskatchewan mental hospital (Weyburn)
Creators: name: Heuser, Alexander Peter
Publisher: name: University of British Columbia
Year: 2012

description: This study reviews the procedures, standards, and administrative requirements inherent in the setting up of a Social Service Department in a mental hospital. Recommendations for a future Social Service Department are based upon: (a) standards for adequate social service as recommended by the American Psychiatric Association and other professional personnel, and (b) the experience of some existing departments in Canada. The latter include: (a) the Social Service Departments at the Crease Clinic of Psychological Medicine and the Provincial Mental Hospital, Essondale, British Columbia, and (b) the After Care Department of the Ontario, Hospital, London, Ontario. This study has also incorporated the information and findings contained within four previous Master of Social Work theses, dealing with (a) the analysis of social work services in a mental hospital, (b) administrative aspects of a social service department in a mental hospital, (c) post-discharge problems of mental patients. The study has examined social work functions in a mental hospital, including: social services rendered during admission, social services rendered during the period of treatment, social services rendered during rehabilitation and convalescence. To ensure effective provision of these social services, the study has outlined "job descriptions" for each social work position within a Social Service Department. Three selected Social Service Departments were examined on the basis of: (a) administrative structure, (b) personnel, and (c) services rendered. Methods used include direct observation, interviews and correspondence with administrative personnel, an examination of information in annual reports and relevant professional articles. The projected department is divided into three distinct sections: (a) an Admissions Section; (b) a Continuing Casework Section: and (c) an Out-Patient Section. To ensure adequate administration and service, such a department requires twenty appropriately-qualified personnel: sixteen social workers at the direct service level; three social workers, each as Casework Supervisor of a Section; and one social worker as the Director of Social Service.
A study of the life history and population dynamics of the sooty grouse, "dendragapus obscurus fuliginosus" (Ridgway)
Creators: name: Bendell, James Francis S.
Publisher: name: University of British Columbia
Year: 2012

description: A population of sooty grouse (Dendragapus obscurus fuliginosus) has been studied on its summer range over the years 1950 to 1953. Data on moult, aging criteria, weight and behaviour are presented as life history. Some of these data are utilized in a consideration of the present population status of grouse on the study area. Mortality, productivity, emigration and immigration, have been studied as factors influencing population size and status. The population is apparently stable, a result of an equilibrium between death in the older age classes and replacement by surviving young. Disease is an important mortality factor in the chicks and a major factor affecting population size and stability.
Electrostatics approach to closed string pair production from a decaying D-brane
Creators: name: Jokela, Niko
name: Jarvinen, Matti
name: Keski-Vakkuri, Esko
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the emission of two closed string tachyons from a decaying Dp-brane in bosonic string theory. We study the high energy limit of the emission amplitude by using an analogue to electrostatics. The case where the emitted strings have equal energies is analyzed in detail, and we obtain a relatively simple result for the emission amplitude. We identify expected poles for s- and t-channel emission. In the high energy limit, the amplitude decays exponentially (~e^{-2πω}) or faster in the energies ωof the closed strings.
description: 28 pages, 2 figures
D1.8.1 Report on food record retrieval using proposed description and classification (was D1.6.3)
Creators: name: AFSSA
name: DFI
Publisher: name: Zenodo
Year: 2005
Subjects: NoE and NEXUS Projects
The EuroFIR Food Platform
EuroFIR

description: LanguaL indexing of foods in national food composition databases The present document reports on food record retrieval using proposed description and classification (D1.8.1), corresponding to Milestone 1.8.9 Indexed food lists from new partners, updated food lists from others. The report is also a follow-up of the report D1.8.5 "Results of 2nd Round of Food Indexing by Compilers Group"1, delivered in December 2006. Food record retrieval depends on accurate food description. LanguaL (http://www.langual.org) is a facetted, hierarchical food vocabulary developed about 30 years ago by the US Food and Drug Administration2. As reported previously, LanguaL indexing was tested on several European food composition datasets and was found suitable for data retrieval for EuroFIR purposes. A prototype food description software - Food Product Indexer (FPI) - was developed to help the compilers index the foods in their databases, to allow record retrieval on the EuroFIR platform.
Log Management support for recovery in mobile computing Environment
Creators: name: Pamila, J. C. Miraclin Joyce
name: Thanushkodi, K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Rapid and innovative improvement in wireless communication technologies has led to an increase in the demand for mobile internet transactions. However, internet access from mobile devices is very expensive due to limited bandwidth available on wireless links and high mobility rate of mobile hosts. When a user executes a transaction with a web portal from a mobile device, the disconnection necessitates failure of the transaction or redoing all the steps after reconnection, to get back into consistent application state. Thus considering challenges in wireless mobile networks, a new log management scheme is proposed for recovery of mobile transactions. In this proposed approach, the model parameters that affect application state recovery are analyzed. The proposed scheme is compared with the existing Lazy and Pessimistic scheme and a trade off analysis between the cost invested to manage log and the return of investment in terms of improved failure recoverability is made. From the analysis, the best checkpoint interval period that yields the best return of investment is identified.
description: 6 Pages, International Journal of Computer Science and Information Security, IJCSIS July 2009, ISSN 1947 5500, Impact Factor 0.423
title: A Multiplicity View for Social Cognition: Defending a Coherent Framework
title: A Multiplicity View for Social Cognition: Defending a Coherent Framework
title: A Reply to Lisa Quadt
titleType: Subtitle
title: A Reply to Lisa Quadt
titleType: Subtitle
Creators: name: Newen, Albert
Publisher: name: Theoretical Philosophy/MIND Group – JGU Mainz
Year: 2015

description: Lisa Quadt’s commentary focuses on my theory about the multiple epistemic strategies humans use to receive information about one other’s mental phenomena. She develops a principle worry about the theory’s underlying metaphysical foundations, arguing that I am committed to an incoherent metaphysical framework. In this reply, I show that I am not committed to the position she attributes to me and I outline an alternative framework that is my actual background view. I illustrate this framework by discussing emotions and argue that emotions are individuated as integrated patterns of characteristic features. This enables me to combine a representational account of emotions with a theory of direct perception of basic emotions as well as with an understanding of some emotions relying on theory-based inferences. Thus, I have a coherent metaphysics. Finally, I show that the alternative suggested by Quadt has its own problems.
description: Open MIND
description: Open MIND
Minoration du spectre des variétés hyperboliques de dimension 3
Creators: name: Jammes, Pierre
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 35P15, 58J50

description: Let $M$ be a compact hyperbolic 3-manifold of diameter $d$ and volume $\leq V$. If $μ_i(M)$ denotes the $i$-th egenvalue of the Hodge laplacian acting on coexact 1-forms of $M$, we prove that $μ_1(M)\geq \frac c{d^3e^{2kd}}$ and $μ_{k+1}(M)\geq \frac c{d^2}$, where $c>0$ depends only on $V$, and $k$ is the number of connected component of the thin part of $M$. Moreover, we prove that for any finite volume hyperbolic 3-manifold $M_\infty$ with cusps, there is a sequence $M_i$ of compact fillings of $M_\infty$ of diameter $d_i\to+\infty$ such that $μ_1(M_i)\geq \frac c{d_i^2}$.
description: 20 pages, 1 figure, in french
Double fissured aneurysm of the aorta
Creators: name: Pancrazi, Francesca
Publisher: name: EURORAD
Year: 2015
Subjects: subject: Abdominal wall
subject: Arteries / Aorta
subject: CT
subject: Catheter arteriography
subject: Abscess delineation
subject: Arterial access
subject: Diagnostic procedure
subject: Acute
subject: Aneurysms

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 73 years
description: Clinical History: A 73 years-old female patientÃÂ came to our attention after few episodes of haematemesis ÃÂ and acute anterior and posterior chest pain. The patient was affected by a known systemic lupus erythematosus. On first examination the patient was conscious and in ... Final Diagnosis: Fissured Thoracic and Abdominal Aortic Aneurysms
The Magellanic Bridge as a DLA System: Physical Properties of Cold Gas toward PKS0312-770
Creators: name: Misawa, Toru
name: Charlton, Jane C.
name: Kobulnicky, Henry A.
name: Wakker, Bart P.
name: Bland-Hawthorn, Joss
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We measure the physical properties of a local multi-component absorption-line system at V_sol ~ 200 km/s toward the quasar PKS0312-770 behind the Magellanic Bridge (MB) using Hubble Space Telescope STIS spectroscopy in conjunction with photoionization modeling. At an impact parameter of ~ 10 kpc from the Small Magellanic Cloud (SMC), this sightline provides a unique opportunity to probe the chemical properties and ionization structure in a nearby absorption line system with a column density of logN(HI) ~ 20.2, at the transition between Damped Lyman Alpha (DLA) and sub-DLA systems. We find that metallicity of -1.0 < logZ < -0.5 and ionization parameter of -6 < logU < -5 for three low-ionization components and logU ~ -2.6 for one high-ionization component. One component at V_sol = 207 km/s shows an alpha-element abundance log(Si/H) ~ -5.0, making it ~ 0.2 dex more metal rich than both SMC H II regions and stars within the MB and the SMC. The N/Si ratio in this component is log(N/Si) = -0.3+/-0.1, making it comparable to other N-poor dwarf galaxies and ~ 0.2 dex lower than H II regions in the SMC. Another component at V_sol = 236 km/s shows a similar Si/H ratio but has log(N/Si) = -1.0+/-0.2, indicating a nitrogen deficiency comparable to that seen in the most N-poor DLA systems. These differences imply different chemical enrichment histories between components along the same sightline. Our results suggest that, if these absorbers are representative some fraction of DLA systems, then 1) DLA systems along single sight-lines do not necessarily represent the global properties of the absorbing cloud, and b) the chemical composition within a given DLA cloud may be inhomogeneous.
description: 28 pages, including 16 figures; accepted for publication in the Astrophysical Journal
Flatness of CR Submanifolds in a Sphere
Creators: name: Ji, Shanyu
name: Yuan, Yuan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Complex Variables (math.CV)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Let $M$ be the image of a smooth CR embedding of a strictly pseudoconvex CR real hypersurface into a sphere. If the CR second fundamental form of $M$ vanishes, we show that $M$ is a totally geodesic submanifold.
description: Dedicated to Professor Yang, Lo on the Occasion of his 70th Birthday
Sur la multiplicité des valeurs propres du laplacien de Witten
Creators: name: Jammes, Pierre
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 58J50

description: On any compact manifold of dimension greater than 4, we prescribe the volume and any finite part of the spectrum of the Witten Laplacian acting on $p$-form for $0
description: 29 pages, in french. arXiv admin note: substantial text overlap with arXiv:0804.0104
Growth and post-annealing studies of La-Bi2201 single crystals
Creators: name: Luo, Huiqian
name: Cheng, Peng
name: Fang, Lei
name: Wen, Hai-Hu
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: Bi$_2$Sr$_{2-x}$La$_x$CuO$_{6+δ}$ (0$\leq x \leq$1.00) single crystals with high-quality have been grown successfully using the travelling-solvent floating-zone technique. The patterns of X-ray diffraction suggest high crystalline quality of the samples. After post-annealing in flowing oxygen at 600 $^o$C, the crystals show sharp superconducting transitions revealed by AC susceptibility. The hole concentration $p$ is deduced from superconducting transition temperature ($T_c$), which exhibits a linear relation with La doping level $x$. It ranges from the heavily overdoped regime ($p \approx$ 0.2) to the extremely underdoped side ($p \approx$ 0.08) where the superconductivity is absent. Comparing with the superconducting dome in Bi$_{2+x}$Sr$_{2-x}$CuO$_{6+δ}$ system, the effects from out-of-plane disorders show up in our samples. Besides the La doping level $x$, the superconductivity is also sensitive to the content of oxygen which could be tuned by post-annealing method over the whole doping range. The post-annealing effects on $T_c$ and $p$ for each La doping level are studied, which give some insights on the different nature between overdoped and underdoped regime.
description: 6 pages, 6 figures
title: Ð¤Ð¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ðµ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ðµ Ð¸Ð½Ð½Ð¾Ð²Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸. ÐÑÐ°ÐºÑÐ¸ÐºÑÐ¼
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: ÐÐ¾Ð½Ð¾Ð²Ð°Ð»Ð¾Ð²Ð°, ÐÐ»ÑÐ³Ð°
name: ÐÑÑÑÐ»Ð¸Ð½, Ð®ÑÐ¸Ð¹
Publisher: name: ÐÑÐ¾ÑÐµÑÑÐ¸Ñ
Year: 2021
Subjects: Ð¸Ð½Ð½Ð¾Ð²Ð°ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð¿ÑÐ¾ÐµÐºÑÑ
ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð·
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ÑÑÐµÐ±Ð½Ð¸ÐºÐ¸ Ð¸ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ Ð´Ð»Ñ Ð²ÑÐ·Ð¾Ð²

description: Ð£ÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Â«ÐÐ½Ð½Ð¾Ð²Ð°ÑÐ¸ÐºÐ°Â», Ð¸Ð·ÑÑÐ°ÑÑÐ¸Ñ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ñ Â«Ð­ÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ° Ð¸ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ðµ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ðµ Ð¸Ð½Ð½Ð¾Ð²Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸Â». ÐÐ½Ð¾ Ð¼Ð¾Ð¶ÐµÑ Ð±ÑÑÑ Ð¿Ð¾Ð»ÐµÐ·Ð½ÑÐ¼ ÑÐ°ÐºÐ¶Ðµ Ð°ÑÐ¿Ð¸ÑÐ°Ð½ÑÐ°Ð¼ Ð¸ ÑÐ»ÑÑÐ°ÑÐµÐ»ÑÐ¼ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼ Ð´Ð¾Ð¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ (Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸, Ð¿ÑÐ¾ÑÐµÑÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð¹ Ð¿ÐµÑÐµÐ¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ Ð¸ Ð´Ñ.), Ð´ÐµÐ¹ÑÑÐ²ÑÑÑÐ¸Ð¼ ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸ÑÑÐ°Ð¼ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¹ ÑÐ°Ð·Ð½ÑÑ Ð¼Ð°ÑÑÑÐ°Ð±Ð¾Ð² Ð¸ ÑÐ¾ÑÐ¼ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½Ð¾ÑÑÐ¸, Ð¿ÐµÑÐµÐ´ ÐºÐ¾ÑÐ¾ÑÑÐ¼Ð¸ ÑÑÐ¾Ð¸Ñ Ð·Ð°Ð´Ð°ÑÐ° Ð¿Ð¾Ð´Ð´ÐµÑÐ¶Ð¸Ð²Ð°ÑÑ Ð¸ Ð½Ð°ÑÐ°ÑÐ¸Ð²Ð°ÑÑ ÑÑÐ¾Ð²ÐµÐ½Ñ ÐºÐ¾Ð½ÐºÑÑÐµÐ½ÑÐ¾ÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾ÑÑÐ¸ ÑÐ²Ð¾ÐµÐ³Ð¾ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ, ÑÐ¾ ÐµÑÑÑ Ð·Ð°Ð½Ð¸Ð¼Ð°ÑÑÑÑ Ð¸Ð½Ð½Ð¾Ð²Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾. Ð ÑÑÐµÐ±Ð½Ð¾Ð¼ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ð¸ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÑÑÑÑ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð²Ð¾Ð¿ÑÐ¾ÑÑ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð³Ð¾ Ð¿Ð»Ð°Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð·Ð°, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¾ÑÐµÐ½ÐºÐ¸ ÑÐµÐ±ÐµÑÑÐ¾Ð¸Ð¼Ð¾ÑÑÐ¸ Ð¸ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¸Ð½Ð½Ð¾Ð²Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¿ÑÐ¾ÐµÐºÑÐ¾Ð². ÐÐ¾ÑÐ¾Ð±Ð¸Ðµ ÑÐ¾ÑÑÐ¾Ð¸Ñ Ð¸Ð· ÐºÑÐ°ÑÐºÐ¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐºÐ°Ð·Ð°Ð½Ð¸Ð¹, ÑÐ¾Ð´ÐµÑÐ¶Ð¸Ñ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ Ð´ÐµÐ»Ð¾Ð²ÑÑ ÑÐ¸ÑÑÐ°ÑÐ¸Ð¹, ÑÐµÑÑÑ Ð¸ Ð·Ð°Ð´Ð°Ð½Ð¸Ñ Ñ Ð¿ÑÐ¸Ð¼ÐµÑÐ°Ð¼Ð¸ ÑÐµÑÐµÐ½Ð¸Ð¹.
Reconstructing the Higgs boson in dileptonic W decays at hadron collider
Creators: name: Choi, Kiwoon
name: Choi, Suyong
name: Lee, Jae Sik
name: Park, Chan Beom
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine the prospect to measure the Higgs boson mass using the recently introduced kinematic variable, the M_T2-Assisted On-Shell (MAOS) momentum, that provides a systematic approximation to the invisible neutrino momenta in dileptonic decays of W-boson pair. For this purpose, we introduce a modified version of the MAOS momentum, that is applicable even when one or both of the W-bosons from the Higgs decay are in off-shell. It is demonstrated that the MAOS Higgs mass distribution, constructed with the MAOS neutrino momenta, shows a clear peak at the true Higgs boson mass when an event cut selecting higher value of M_T2 is employed. We perform the likelihood analysis for this MAOS mass distribution to determine the Higgs boson mass, and find it can improve the accuracy of the Higgs mass measurement. Our results indicate that the MAOS Higgs mass can be useful also for the discovery or exclusion of the Higgs boson in certain mass range.
description: 18 pages, 21 figures
Reproducible Research in Archaeology
Creators: name: Clarke, Alison
name: de Gruchy, Michelle
name: Karoune, Emma
name: Syrotiuk, Nick
Publisher: name: Zenodo
Year: 2021
Subjects: Software Sustainability Institute
Reproducibility
Open Research
Open data
Open methods
Archaeology

description: This is the presentation given at the workshop on 'Reproducible research in Archaeology' at Durham University on 15th October 2021. The workshop included an introduction to what reproducibility is, why it is important for archaeological research and how you can make your research workflow reproducible. It also included some case studies demonstrating reproducible workflows used in archaeological research. This workshop was organised by Software Sustainability Institute Fellows - Alison Clarke and Emma Karoune. The video of this presentation can be found here: https://doi.org/10.5281/zenodo.5615534
title: ÐÐ°ÐºÑÑÐ¼Ð½ÑÐµ Ð¼Ð°ÑÑ-ÑÐ¿ÐµÐºÑÑÐ¾Ð¼ÐµÑÑÑ
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
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Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: ÐÐ°ÑÑ-ÑÐ¿ÐµÐºÑÑÐ¾Ð¼ÐµÑÑÑ
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title: ÐÐ¾Ð´Ð¾Ð¿Ð¾Ð½Ð¸Ð¶ÐµÐ½Ð¸Ðµ Ð¸ Ð²Ð¾Ð´Ð¾Ð¾ÑÐ²ÐµÐ´ÐµÐ½Ð¸Ðµ ÑÑÐ°ÑÑÐºÐ° Ñ ÐºÐ¾ÑÑÐµÐ´Ð¶ÐµÐ¼ Ð²Ð¾ ÐÑÐµÐ²Ð¾Ð»Ð¾Ð¶ÑÐºÐ¾Ð¼ ÑÐ°Ð¹Ð¾Ð½Ðµ ÐÐµÐ½Ð¸Ð½Ð³ÑÐ°Ð´ÑÐºÐ¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: Ð¡ÑÑÐ¸Ñ, ÐÐ½Ð°ÑÑÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2016
Subjects: Ð²Ð¾Ð´Ð¾Ð¾ÑÐ²ÐµÐ´ÐµÐ½Ð¸Ðµ
Ð´ÑÐµÐ½Ð°Ð¶
Ð´ÑÐµÐ½Ð°Ð¶Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð°
water disposal
drainage
drainage system

description: ÐÐµÑÑÐ¾ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð° - Ð´Ð°ÑÐ½ÑÐ¹ ÑÑÐ°ÑÑÐ¾Ðº Ð² Ð¿Ð¾ÑÐµÐ»ÐºÐµ ÐÑÐ¸ÑÑÐ¸Ð½Ð¾, Ð¡ÐÐ¢ Â«ÐÑÐ±Ð¾ÐºÂ» Ð²Ð¾ ÐÑÐµÐ²Ð¾Ð»Ð¾Ð¶ÑÐºÐ¾Ð¼ ÑÐ°Ð¹Ð¾Ð½Ðµ ÐÐµÐ½Ð¸Ð½Ð³ÑÐ°Ð´ÑÐºÐ¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸.ÐÐ° ÑÑÐ°ÑÑÐºÐµ Ð½Ð°Ð±Ð»ÑÐ´Ð°ÐµÑÑÑ Ð²ÑÑÐ¾ÐºÐ¸Ð¹ ÑÑÐ¾Ð²ÐµÐ½Ñ Ð³ÑÑÐ½ÑÐ¾Ð²ÑÑ Ð²Ð¾Ð´. Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð´ÑÐµÐ½Ð°Ð¶Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð°, Ð¾Ð±ÐµÑÐ¿ÐµÑÐ¸Ð²Ð°ÑÑÐ°Ñ Ð¿Ð¾Ð½Ð¸Ð¶ÐµÐ½Ð¸Ðµ Ð³ÑÑÐ½ÑÐ¾Ð²ÑÑ Ð²Ð¾Ð´ Ð¸ Ð·Ð°ÑÐ¸ÑÑ ÑÑÐ°ÑÑÐºÐ° Ð¾Ñ Ð¿Ð¾Ð´ÑÐ¾Ð¿Ð»ÐµÐ½Ð¸Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐ¸ÑÑÐµÐ¼Ð° Ð¾ÑÐ²ÐµÐ´ÐµÐ½Ð¸Ñ ÑÑÐ¾ÑÐ½ÑÑ Ð²Ð¾Ð´ Ð¸Ð· Ð¶Ð¸Ð»Ð¾Ð³Ð¾ Ð´Ð¾Ð¼Ð°. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½ ÑÐ¸ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐ¹ Ð¿Ð»Ð°Ð½ Ð¸ Ð³ÐµÐ½ÐµÑÐ°Ð»ÑÐ½ÑÐ¹ Ð¿Ð»Ð°Ð½ ÑÐµÑÑÐ¸ÑÐ¾ÑÐ¸Ð¸; Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ñ ÑÐ°ÑÑÐµÑÑ Ð´ÑÐµÐ½Ð°Ð¶Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ (Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ Ð¼ÐµÐ¶Ð´ÑÐµÐ½Ð½ÑÐµ ÑÐ°ÑÑÑÐ¾ÑÐ½Ð¸Ñ, Ð³Ð»ÑÐ±Ð¸Ð½Ð° Ð·Ð°Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð´ÑÐµÐ½, Ð¿Ð»Ð°Ð½Ð¾Ð²Ð¾Ðµ Ð¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ðµ Ð¾ÑÑÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐµÑÐ¸ Ð¸ Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ°ÑÑÐµÑ ÐºÐ¾Ð»Ð»ÐµÐºÑÐ¾ÑÐ°); Ð¿Ð¾Ð´Ð¾Ð±ÑÐ°Ð½Ñ Ð»Ð¾ÐºÐ°Ð»ÑÐ½ÑÐµ Ð¾ÑÐ¸ÑÑÐ½ÑÐµ ÑÐ¾Ð¾ÑÑÐ¶ÐµÐ½Ð¸Ñ, Ð¾ÑÑÑÐµÑÑÐ²Ð»ÐµÐ½Ñ ÑÐ°ÑÑÐµÑÑ, ÑÑÐ¸ÑÑÐ²Ð°ÑÑÐ¸Ðµ ÑÐºÐ»Ð¾Ð½ ÑÑÑÐ±Ð¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð°, Ð²Ð¸Ð´ ÑÑÑÐ±, ÑÐ¿Ð¾ÑÐ¾Ð± Ð¿ÑÐ¾ÐºÐ»Ð°Ð´ÐºÐ¸, ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐµÐ´ÑÑÐ¼Ð¾ÑÑÐµÐ½ Ð²ÑÐ±Ð¾Ñ Ð¼ÐµÑÑÐ° Ð´Ð»Ñ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ ÑÑÑÐ± Ð¸ ÑÐ°Ð½ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿ÑÐ¸Ð±Ð¾ÑÐ¾Ð²; Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½ ÑÐ¼ÐµÑÐ½ÑÐ¹ ÑÐ°ÑÑÐµÑ.
description: Construction-place suburban area in the village Priyutino, SNT "Dubok 'in the Vsevolozhsk district of the Leningrad region. A high level of groundwater is observed on the plot.In this job we developed drainage system, which provides lowering of groundwater and protect the site from flooding, as well as the system of sewage diversion of residential building. A situation plan and the general plan of the territory; the calculations of the drainage system (defined drain spacing, depth of the drains, the planned position of the drainage network and the hydraulic reservoir calculation); selected local treatment facilities, carried out calculations that take into account the slope of the pipeline, the type of pipes, laying the way, also provides the choice of location for the installation of pipes and plumbing fixtures; made estimate calculation.
Deep Learning based assessment of groundwater level development in Germany until 2100
Creators: name: Wunsch, Andreas
name: Liesch, Tanja
name: Broda, Stefan
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021

description: Clear signs of climate stress on groundwater resources have been observed in recent years even in generally water-rich regions such as Germany. Severe droughts, resulting in decreased groundwater recharge, led to declining groundwater levels in many regions and even local drinking water shortages have occurred in past summers. We investigate how climate change will directly influence the groundwater resources in Germany until the year 2100. For this purpose, we use a machine learning groundwater level forecasting framework, based on Convolutional Neural Networks, which has already proven its suitability in modelling groundwater levels. We predict groundwater levels on more than 120 wells distributed over the entire area of Germany that showed strong reactions to meteorological signals in the past. The inputs are derived from the RCP8.5 scenario of six climate models, pre-selected and pre-processed by the German Meteorological Service, thus representing large parts of the range of the expected change in the next 80 years. Our models are based on precipitation and temperature and are carefully evaluated in the past and only wells with models reaching high forecasting skill scores are included in our study. We only consider natural climate change effects based on meteorological changes, while highly uncertain human factors, such as increased groundwater abstraction or irrigation effects, remain unconsidered due to a lack of reliable input data. We can show significant (p<0.05) declining groundwater levels for a large majority of the considered wells, however, at the same time we interestingly observe the opposite behaviour for a small portion of the considered locations. Further, we show mostly strong increasing variability, thus an increasing number of extreme groundwater events. The spatial patterns of all observed changes reveal stronger decreasing groundwater levels especially in the northern and eastern part of Germany, emphasizing the already existing decreasing trends in these regions
Noncommutativity as a colimit
Creators: name: Berg, Benno van den
name: Heunen, Chris
Publisher: name: arXiv
Year: 2010
Subjects: subject: Category Theory (math.CT)
subject: Operator Algebras (math.OA)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 16B50, 18A30, 46L05, 46L85, 06E15, 81P16

description: Every partial algebra is the colimit of its total subalgebras. We prove this result for partial Boolean algebras (including orthomodular lattices) and the new notion of partial C*-algebras (including noncommutative C*-algebras), and variations such as partial complete Boolean algebras and partial AW*-algebras. The first two results are related by taking projections. As corollaries we find extensions of Stone duality and Gelfand duality. Finally, we investigate the extent to which the Bohrification construction, that works on partial C*-algebras, is functorial.
description: 22 pages; updated theorem 15, added propoisition 36
A Novel Generic Session Based Bit Level Encryption Technique to Enhance Information Security
Creators: name: Paul, Manas
name: Bhattacharya, Tanmay
name: Pal, Suvajit
name: Saha, Ranit
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: - In this paper a session based symmetric key encryption system has been proposed and is termed as Permutated Cipher Technique (PCT). This technique is more fast, suitable and secure for larger files. In this technique the input file is broken down into blocks of various sizes (of 2 power n order) and encrypted by shifting the position of each bit by a certain value for a certain number of times. A key is generated randomly wherein the length of each block is determined. Each block length generates a unique value of number of bits to be skipped. This value determines the new position of the bits within the block that are to be shifted. After the shifting and inverting each block is XORed with SHA 512 digest of the key. The resultant blocks from the cipher text. The key is generated according to the binary value of the input file size. Decryption is done following the same process as the technique is symmetric.
description: 7 Pages, International Journal of Computer Science and Information Security, IJCSIS July 2009, ISSN 1947 5500, Impact Factor 0.423
Casework in a veterans' hospital : an analytical study of referrals from doctors, Shaughnessy Hospital, 1953-4
Creators: name: Barsky, Anastasia Nellie
Publisher: name: University of British Columbia
Year: 2012

description: There is evidence that from the earliest days of recorded history man has been aware of a significant relationship between sound physical health and an harmonious social environment. Many physicians and hospital administrators today recognize that a complete program of medical care includes facilities for the treatment of patients' social and emotional problems. The Department of Veterans' Affairs has recently given recognition to this principle through the provision of medical social service as part of the Treatment Services program for veterans. In the present study the medical social service program at Shaughnessy Hospital is examined in an attempt to show how the doctors use the new service and with what results. At the same time, an attempt is made to point out other potential areas of development for medical social service in this hospital. The basic information for the study was obtained from an analysis of approximately four hundred social service records, representing new referrals by doctors to the department for the year 1953-54. In addition, approximately thirty doctors were asked, through the medium of a questionnaire and in personal interviews, how they were using social services to complement medical care, and what recommendations they might make for the fuller utilization of these services. The findings from these two procedures were consistent. They indicated that there is a growing demand for social services in this setting, and that the potential demand is even greater. The services most widely requested were for the purposes of enabling medical diagnosis and treatment, and assisting the patients in discharge planning. On the other hand, there is as yet, little recognition of social work as a method of treatment, complementary to the medical plan: this finding appears both in the classification of the services for which patients were referred to the Medical Social Service Department, and in the comments and suggestions made by medical personnel. While recognizing the very real limitation of staff shortage within the Social Service Department, this study is primarily concerned with the need for continuous interpretation of casework services. Much can be done through the refinement of everyday practices, such as closer co-operation with the medical staff, more effective use of casework recording, and continued self-evaluation. These practices, together with the favourable attitudes toward social-service already expressed by the medical staff, should enable the doctors to make the optimum use of the existing services available through the Medical Social Service Department, to the end of improving still further the overall program of care for the veteran patients.
title: Ð¡Ð¾Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÐµ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: ÐÐ³Ð¾ÑÐ¾Ð², Ð®ÑÐ¸Ð¹
Publisher: name: ÐÐ·Ð´-Ð²Ð¾ ÐÐ¾Ð»Ð¸ÑÐµÑÐ½. ÑÐ½-ÑÐ°
Year: 2015
Subjects: ÐÐ°ÑÐ¸Ð½Ñ
ÐÐ¸Ð±ÐµÑÐ½ÐµÑÐ¸ÐºÐ°
ÐÐ½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½ÑÐµ ÑÐ¸ÑÑÐµÐ¼Ñ

description: Ð¡Ð¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÐµÑ ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸Ñ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ñ Ð¤ÐÐÐ¡ ÐÐÐ âÐ¡Ð¾Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÐµ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñâ Ð´Ð»Ñ Ð¾Ð±ÑÑÐ°ÑÑÐ¸ÑÑÑ Ð¿Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ 220200.68 âÐÐ²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ñ Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµâ Ð¿Ð¾ Ð¼Ð°Ð³Ð¸ÑÑÐµÑÑÐºÐ¾Ð¹ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ðµ 220200.68.03 âÐÐ²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð¸ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ² Ð² Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ð¸â. ÐÑÐ½Ð¾Ð²Ð½Ð¾Ðµ Ð²Ð½Ð¸Ð¼Ð°Ð½Ð¸Ðµ ÑÐ´ÐµÐ»ÐµÐ½Ð¾ ÐºÐ¸Ð±ÐµÑÐ½ÐµÑÐ¸ÐºÐµ ÑÐ°Ð±Ð¾ÑÐ¸Ñ Ð¼Ð°ÑÐ¸Ð½. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¿ÑÐ¾ÑÐµÑÑÑ Ð¸ÑÐ¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÑÐ¾Ð²Ð½Ñ, Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸, Ð¿ÑÐ¾ÑÐµÑÑÑ Ð¿ÑÐ¸Ð½ÑÑÐ¸Ñ ÑÐµÑÐµÐ½Ð¸Ð¹ Ð¾ Ð·Ð°Ð´Ð°Ð½Ð¸ÑÑ Ð¸ÑÐ¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÐ¼ ÑÐ¸ÑÑÐµÐ¼Ð°Ð¼. ÐÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð², Ð¾Ð±ÑÑÐ°ÑÑÐ¸ÑÑÑ Ð¿Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ âÐÐ²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ñ Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµâ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¼Ð¾Ð¶ÐµÑ Ð±ÑÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¾ Ð² Ð¸Ð½Ð¶ÐµÐ½ÐµÑÐ½Ð¾Ð¹ Ð¿ÑÐ°ÐºÑÐ¸ÐºÐµ Ð´Ð»Ñ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ñ Ð¸Ð½ÑÐµÐ»Ð»ÐµÐºÑÑÐ°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ ÑÐ°Ð±Ð¾ÑÐ¸Ñ Ð¼Ð°ÑÐ¸Ð½.
description: ÐÐµÑÐ°ÑÐ°ÐµÑÑÑ Ð¿Ð¾ ÑÐµÑÐµÐ½Ð¸Ñ Ð¡Ð¾Ð²ÐµÑÐ° Ð¿Ð¾ Ð¸Ð·Ð´Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð£ÑÐµÐ½Ð¾Ð³Ð¾ ÑÐ¾Ð²ÐµÑÐ° Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑÐ° ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾.
Shocks and finite-time singularities in Hele-Shaw flow
Creators: name: Lee, Seung-Yeop
name: Teodorescu, Razvan
name: Wiegmann, Paul
Publisher: name: arXiv
Year: 2008
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Hele-Shaw flow at vanishing surface tension is ill-defined. In finite time, the flow develops cusp-like singularities. We show that the ill-defined problem admits a weak {\it dispersive} solution when singularities give rise to a graph of shock waves propagating in the viscous fluid. The graph of shocks grows and branches. Velocity and pressure jump across the shock. We formulate a few simple physical principles which single out the dispersive solution and interpret shocks as lines of decompressed fluid. We also formulate the dispersive weak solution in algebro-geometrical terms as an evolution of the Krichever-Boutroux complex curve. We study in detail the most generic (2,3) cusp singularity, which gives rise to an elementary branching event. This solution is self-similar and expressed in terms of elliptic functions.
description: 24 pages, 11 figures; references added; figures changed
Spectral and intensity variations of Galactic 26^Al emission
Creators: name: Wang, W.
name: Lang, M. G.
name: Diehl, R.
name: Halloin, H.
name: Jean, P.
name: Knödlseder, J.
name: Kretschmer, K.
name: Martin, P.
name: Roques, P.
name: Strong, A. W.
name: Winkler, C.
name: Zhang, X. L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Gamma-ray line emission from the radioactive decay of 26Al reflects nucleosynthesis in massive stars and supernovae. We use INTEGRAL 26Al measurements to characterize the distribution and characteristics of 26Al source regions throughout the Galaxy. We detect the 26Al line from the inner Galaxy at 28σsignificance. The line appears narrow, and we constrain broadening in the source regions to <1.3 keV (2σ). Different sky distribution models do not significantly affect those large-scale results. The 26Al intensity for the inner Galaxy is derived as (2.9\pm 0.2)\times 10^{-4}ph\ cm^{-2} s^{-1} rad^{-1}, consistent with earlier results from COMPTEL and SPI data. This can be translated to an 26Al mass of 2.7\pm 0.7 solar mass in the Galaxy as a whole. The 26Al intensity is also confirmed to be somewhat brighter in the 4th than in the 1st quadrant (ratio 1.3\pm 0.2). 26Al spectra separately derived for regions along the Galactic plane show clear line centroid shifts, attributed largely to the Galaxy's large-scale rotation. The 26Al line toward the direction of the Aquila region (20deg < l < 40deg) appears somewhat broadened. Latitudinal variations of 26Al emission towards the inner Galaxy are studied, finding a latitudinal scale height of 130^{+120}_{-70} pc (1σ) for 26Al in the inner Galaxy and a hint of peculiar 26Al emission towards the region l<0deg, b>5deg.
description: 13 pages, 12 figures, accepted for the publication in A&A
Stagflation -- Bose-Einstein condensation in the early universe
Creators: name: Takeshi, Fukuyama
name: Masahiro, Morikawa
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Our universe experienced the accelerated expansion at least twice; an extreme inflationary acceleration in the early universe and the recent mild acceleration. By introducing the Bose-Einstein condensation (BEC) phase of a boson field, we have been developing a unified model of dark energy (DE) and dark matter (DM) for the later mild acceleration. In this scenario, two phases of BEC (=DE) and normal gas (=DM) transform with each other through BEC phase transition. This unified model has successfully explained the mild acceleration as an attractor. We extend this BEC cosmology to the early universe without introducing new ingredients. In this scenario, the inflation is naturally initiated by the condensation of the bosons in the huge vacuum energy. This inflation and even the cosmic expansion eventually terminates exactly at zero energy density. We call this stage as stagflation. At this stagflation era, particle production and the decay of BEC take place. The former makes the universe turn into the standard hot big bang stage and the latter makes the cosmological constant vanishingly small after the inflation. Furthermore, we calculate the density fluctuations produced in this model, which turns out to be in the range allowed by the present observational data. We also show that the stagflation is quite robust and easily appears when one allows negative region of the potential. Further, we comment on the possibility that BEC generation/decay series might have continued all the time in the cosmic history from the inflation to present.
description: 19 pages, 8 figures
Effects of Non-Circular Motions on Azimuthal Color Gradients
Creators: name: Martinez-Garcia, Eric E.
name: Gonzalez-Lopezlira, Rosa A.
name: Gomez, Gilberto C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Assuming that density waves trigger star formation, and that young stars preserve the velocity components of the molecular gas where they are born, we analyze the effects that non-circular gas orbits have on color gradients across spiral arms. We try two approaches, one involving semi-analytical solutions for spiral shocks, and another with magnetohydrodynamic (MHD) numerical simulation data. We find that, if non-circular motions are ignored, the comparison between observed color gradients and stellar population synthesis models would in principle yield pattern speed values that are systematically too high for regions inside corotation, with the difference between the real and the measured pattern speeds increasing with decreasing radius. On the other hand, image processing and pixel averaging result in systematically lower measured spiral pattern speed values, regardless of the kinematics of stellar orbits. The net effect is that roughly the correct pattern speeds are recovered, although the trend of higher measured $Ω_p$ at lower radii (as expected when non-circular motions exist but are neglected) should still be observed. We examine the Martinez-Garcia et al. (2009) photometric data and confirm that this is indeed the case. The comparison of the size of the systematic pattern speed offset in the data with the predictions of the semi-analytical and MHD models corroborates that spirals are more likely to end at Outer Lindblad Resonance, as these authors had already found.
description: 32 pages, 15 figures, accepted to ApJ
Nonextensive statistics of relativistic ideal gas
Creators: name: Chakrabarti, R.
name: Chandrashekar, R.
name: Mohammed, S. S. Naina
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We obtain the specific heat in the third constraint scenario for a canonical ensemble of a nonextensive extreme relativistic ideal gas in a closed form. The canonical ensemble of N particles in D dimensions is well-defined for the choice of the deformation parameter in the range 0 < q < 1 + 1 / DN. For a relativistic ideal gas with particles of arbitrary mass a perturbative scheme in the nonextensivity parameter (1 - q) is developed by employing an infinite product expansion of the q-exponential, and a direct transformation of the internal energy from the second to the third constraint picture. All thermodynamic quantities may be uniformly evaluated to any desired perturbative order.
title: Ð¡Ð¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ð¸ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ñ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð° ÐºÑÐ»Ð¸Ð½Ð°ÑÐ½ÑÑ Ð¸Ð·Ð´ÐµÐ»Ð¸Ð¹ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÐ°ÑÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð¸ ÑÑÐ±Ð½Ð¾Ð³Ð¾ ÑÑÑÑÑ Ð´Ð»Ñ Ð´Ð¸ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ°Ð¼ÐµÐ½ÑÐºÐ¸Ñ, ÐÐºÐ°ÑÐµÑÐ¸Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: Ð´Ð¸ÐµÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ
ÑÑÐ±Ð°
Ð¼ÐµÐ½Ñ
Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²ÐµÐ½Ð½Ð°Ñ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð°

description: ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð¾Ð±Ð·Ð¾Ñ Ð»Ð¸ÑÐµÑÐ°ÑÑÑÑ, Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ñ Ð¸ Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ñ Ð½Ð°ÑÑÐ½ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ. Ð¡Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð¾ Ð¼ÐµÐ½Ñ Ð´Ð»Ñ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ, Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐ°ÑÑÐµÑÑ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ. Ð¡ÑÐ¾ÑÐ¼ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ñ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ñ Ð¿Ð¾ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ñ Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑÐ¸ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÑÐµÐ¼Ð¾Ð³Ð¾ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ.
Generalizations of the Image Conjecture and the Mathieu Conjecture
Creators: name: Zhao, Wenhua
Publisher: name: arXiv
Year: 2009
Subjects: subject: Complex Variables (math.CV)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 33C45, 32W99, 14R15

description: We first propose a generalization of the image conjecture [Z3] for the commuting differential operators related with classical orthogonal polynomials. We then show that the non-trivial case of this generalized image conjecture is equivalent to a variation of the Mathieu conjecture [Ma] from integrals of $G$-finite functions over reductive Lie groups $G$ to integrals of polynomials over open subsets of $\mathbb R^n$ with any positive measures. Via this equivalence, the generalized image conjecture can also be viewed as a natural variation of Duistermaat and van der Kallen's theorem [DK] on Laurent polynomials with no constant terms. To put all the conjectures above in a common setting, we introduce what we call the Mathieu subspaces of associative algebras. We also discuss some examples of Mathieu subspaces from other sources and derive some general results on this newly-introduced notion.
description: Some mistakes and misprints have been corrected. Latex 33 pages
Elliptic Flow: A Study of Space-Momentum Correlations In Relativistic Nuclear Collisions
Creators: name: Sorensen, Paul
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Here I review measurements of v2, the second component in a Fourier decomposition of the azimuthal dependence of particle production relative to the reaction plane in heavy-ion collisions. v2 is an observable central to the interpretation of the subsequent expansion of heavy-ion collisions. Its large value indicates significant space-momentum correlations, consistent with the rapid expansion of a strongly interacting Quark Gluon Plasma. Data is reviewed for collision energies from sqrt[sNN] = 2 to 200 GeV. Scaling observations and comparisons to hydrodynamic models are discussed.
description: 53 pages, 37 figures, a review article written for the QGP4 book edited by Rudy Hwa and Xin-Nian Wang (more minor updates, typos, and updated references)
Wide band observations of the X-ray burster GS 1826-238
Creators: name: Cocchi, M.
name: Farinelli, R.
name: Paizis, A.
name: Titarchuk, L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: GS 1826-238 is a well-studied X-ray bursting neutron star in a low mass binary system. Thermal Comptonisation by a hot electron cloud is a widely accepted mechanism accounting for its high energy emission, while the nature of most of its soft X-ray output is not completely understood. A further low energy component is typically needed to model the observed spectra: pure blackbody and Comptonisation-modified blackbody radiation by a lower temperature (a few keV) electron plasma were suggested to explain the low energy data. We studied the steady emission of GS 1826-238 by means of broad band (X to soft Gamma-rays) measurements obtained by the INTEGRAL observatory in 2003 and 2006. The newly developed, up-to-date Comptonisation model CompTB is applied for the first time to study effectively the low-hard state variability of a low-luminosity neutron star in a low-mass X-ray binary system. We confirm that the 3-200 keV emission of \GS is characterised by Comptonisation of soft seed photons by a hot electron plasma. A single spectral component is sufficient to model the observed spectra. At lower energies, no direct blackbody emission is observed and there is no need to postulate a low temperature Compton region. Compared to the 2003 measurements, the plasma temperature decreased from 20 to 14 keV in 2006, together with the seed photons temperature. The source intensity was also found to be 30% lower in 2006, whilst the average recurrence frequency of the X-ray bursts significantly increased. Possible explanations for this apparent deviation from the typical limit-cycle behaviour of this burster are discussed.
description: 6 pages, 2 figures. Accepted for publication in A&A