cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Proximity effects and characteristic lengths in ferromagnet-superconductor structures
Creators: name: Halterman, Klaus
name: Valls, Oriol T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present an extensive theoretical investigation of the proximity effects that occur in Ferromagnet/Superconductor ($F/S$) systems. We use a numerical method to solve self consistently the Bogoliubov-de Gennes equations in the continuum. We obtain the pair amplitude and the local density of states (DOS), and use these results to extract the relevant lengths characterizing the leakage of superconductivity into the magnet and to study spin splitting into the superconductor. These phenomena are investigated as a function of parameters such as temperature, magnet polarization, interfacial scattering, sample size and Fermi wavevector mismatch, all of which turn out to have important influence on the results. These comprehensive results should help characterize and analyze future data and are shown to be in agreement with existing experiments.
description: 24 pages, including 26 figures
MOESM1 of Safety and efficacy of Holmium laser enucleation of the prostate (HoLEP) in patients with previous transperineal biopsy (TPB): outcomes from a dual-centre case-control study
Creators: name: Bell, Chris
name: Moore, Sacha
name: Amarit Gill
name: Obinna Obi-Njoku
name: Hughes, Stephen
name: Saleemi, Asad
name: Gidon Ellis
name: Khan, Farooq
name: Shergill, Iqbal S.
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1: Table S1. Preoperative medications in patients undergoing HoLEP for lower urinary tract symptoms.
Clean Technology Ventures and Innovation
Creators: name: Garnsey, Elizabeth
name: Dee, Nicola
name: Ford, Simon
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019

description: Entrepreneurial innovators have been agents of transformation throughout history, but they have not had the scope to perform this role in the environmental domain. We propose an explanatory model that depicts the processes that give rise to innovation by new entrant firms. We apply this model to evidence from a study of problems faced by 73 environmental ventures. We present supporting evidence from case studies that demonstrate how entrepreneurial innovation is brought about by problem solving practices under resource constraint and decision-making flexibility. We point to the value of promoting technological options and the diversity and complementarities to which new entrants give rise.
Formulation of quality fish feeds from indigenous raw materials and their effects on growth and maturity of Mystus gulio
Creators: name: Begum, M.
name: Pal, H.K
name: Islam, M.J
name: Alam, M.J
name: Begum, M.
name: Pal, H.K
name: Islam, M.J
name: Alam, M.J
Publisher: name: Unknown
Year: 2008
Subjects: Agribusiness
Research Methods/ Statistical Methods

description: An experiment was conducted for 140 days in earthen ponds to evaluate the effect of three dietary protein levels on the growth and maturity of bagrid catfish Mystus gulio. Three different iso-caloric feeds containing 30%, 35% and 40% dietary protein levels were prepared from indigenous fish feed ingredients and were fed to Mystus gulio at the rate of 5% of total body weight of the fish. The overall growth of Mystus gulio fed with feeds of different levels of dietary protein was found to increase with the increase of dietary protein levels in the feed. The gonadosomatic index (GSI) values of both male and female were higher in Feed-C (40% protein) compared to the Feed-A (30%) and Feed-B (35%). There was significant differences (P<0.05) between the gonadosomatic index values of Mystus gulio fed on different dietary protein levels. Statistical analysis showed that the feed at a level of 40% protein was significantly different from other feeds and most effective in changing the growth and maturity of M. gulio.
Ceratocombus (Ceratocombus) coleoptratus Ceratocombidae
Creators: name: Fent, Meral
name: Kment, Petr
name: Çamur-Elipek, Belgin
name: Kirgiz, Timur
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Ceratocombidae
Ceratocombus
Ceratocombus coleoptratus

description: Ceratocombus (Ceratocombus) coleoptratus (Zetterstedt, 1819) (Ceratocombidae)
 European Turkey. Heiss & Péricart (2007, with?).
 General distribution. Eurosiberian species, distribued from Ireland and Great Britain to Mongolia and Russian Far East, also in Bulgaria, Greece, Israel, and Syria (Reichling & Gerend 1994, Kerzhner 1995b, Lukashuk 1997, Protić 1998, Simov & Josifov 2004, Heiss & Péricart 2007, Spuņģis 2008, Golub & Vinokurov 2009).
 Comment. Reported by Heiss & Péricart (2007) as follows: ‘? TURQUIE D’EUROPE. Belgrader Wald, VII 1954, Schubert leg.> coll. Eckerlein, MHNG (spécimen douteux [= doubtful specimen])’. The locality Belgrader Wald [= Belgrad Forest, Belgrad Ormanı] is situated at Bahçeköy on the northern margin of İstanbul. As Heiss & Péricart (2007) themselves expressed doubts about the specimen, occurrence of C. coleoptratus in Turkey needs further confirmation.
 Identification. Heiss & Péricart (2007).
description: Published as part of Fent, Meral, Kment, Petr, Çamur-Elipek, Belgin & Kirgiz, Timur, 2011, Annotated catalogue of Enicocephalomorpha, Dipsocoromorpha, Nepomorpha, Gerromorpha, and Leptopodomorpha (Hemiptera: Heteroptera) of Turkey, with new records 2856, pp. 1-84 in Zootaxa 2856 (1) on page 56, DOI: 10.11646/zootaxa.2856.1.1, http://zenodo.org/record/5286719
Loops in AdS: From the Spectral Representation to Position Space
Creators: name: Carmi, Dean
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute a family of scalar loop diagrams in $AdS$. We use the spectral representation to derive various bulk vertex/propagator identities, and these identities enable to reduce certain loop bubble diagrams to lower loop diagrams, and often to tree-level exchange or contact diagrams. An important example is the computation of the finite coupling 4-point function of the large-$N$ conformal $O(N)$ model on $AdS_3$. Remarkably, the re-summation of bubble diagrams is equal to a tree-level contact diagram: the $\bar{D}_{1,1,\frac{3}{2},\frac{3}{2}} (z,\bar z)$ function. Another example is a scalar with $ϕ^4$ or $ϕ^3$ coupling in $AdS_3$: we compute various 4-point (and higher point) loop bubble diagrams with alternating integer and half-integer scaling dimensions in terms of a finite sum of contact diagrams and tree-level exchange diagrams. The 4-point function with external scaling dimensions differences obeying $Δ_{12}=0$ and $Δ_{34}=1$ enjoys significant simplicity which enables us to compute in quite generality. For integer or half-integer scaling dimensions, we show that the $M$-loop bubble diagram can be written in terms of Lerch transcendent functions of the cross-ratios $z$ and $\bar z$. Finally, we compute 2-point bulk bubble diagrams with endpoints in the bulk, and the result can be written in terms of Lerch transcendent functions of the AdS chordal distance. We show that the similarity of the latter two computations is not a coincidence, but arises from a vertex identity between the bulk 2-point function and the double-discontinuity of the boundary 4-point function.
description: Corrections made, 52 pages, 20 figures
Recognition and classification of the cosmic-ray events in images captured by CMOS/CCD cameras
Creators: name: Niedzwiecki, Michal
name: Rzecki, Krzysztof
name: Marek, Marta
name: Homola, Piotr
name: Smelcerz, Katarzyna
name: Castillo, David Alvarez
name: Smolek, Karel
name: Hnatyk, Bohdan
name: Zamora-Saa, Jilberto
name: Mozgova, Alona
name: Nazaric, Vahab
name: Gora, Dariusz
name: Kopanski, Konrad
name: Wibig, Tadeusz
name: Duffy, Alan R.
name: Stasielak, Jaroslaw
name: Zimboras, Zoltan
name: Kasztelan, Marcin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Muons and other ionizing radiation produced by cosmic rays and radiative decays affect CMOS/CCD sensor. When particles colliding with sensors atoms cause specific kind of noise on images recorded by cameras. We present a concept and preliminary implementation of method for recognizing those events and algorithms for image processing and their classification by machine learning. Our method consists of analyzing the shape of traces present in images recorded by a camera sensor and metadata related to an image like camera model, GPS location of camera, vertical and horizontal orientation of a camera sensor, timestamp of image acquisition, and other events recognized near-by sensors. The so created feature vectors are classified as either a muon-like event, an electron-like event or the other event, possibly noise. For muon-like events our method estimates azimuth of a muon track. Source of the data is database of CREDO (Cosmic-Ray Extremely Distributed Observatory) project and ESO (European Southern Observatory) archives. The telescope dark frames from ESO are analysed. CREDO project collected so far over 2 millions images of events from many kinds of cameralike: smartphones camera, laptop webcams and Internet of Things cameras localised around the globe.
description: 36th International Cosmic Ray Conference (ICRC2019)
A simplified model of the formation of structures in the dark matter, and a background of very long gravitational waves
Creators: name: Bisnovatyi-Kogan, G. S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Collapse of the rotating spheroid is approximated by a system of ordinary differential equations describing its dynamics. The gravitational potential is approximated by the one of the iniform Maclaurin spheroid. Developement of gravitational instability and collapse in the dark matter medium do not lead to any shock formation or radiation, but is characterized by non-collisional relaxation, which is accompanied by the mass and angular momentum losses. Phenomenological account of these processes is done in this model. Formation of the equilibrium configuration dynamics of collapse is investigated for several parameters, characterizing the configuration. A very long gravitational wave emission during the collapse is estimated, and their possible connection with the observed gravitational lenses is discussed.
description: 16 pages, 16 figures; submitted to MNRAS
The transient voltage response of ReBCO coated conductors exhibiting dynamic resistance
Creators: name: Brooks, J M
name: Ainslie, M D
name: Jiang, Zhenan
name: Pantoja, A E
name: Badcock, R A
name: Bumby, C W
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Paper
dynamic resistance
AC loss
coated conductor
H-formulation

description: Abstract: Dynamic resistance can be observed in a superconducting tape carrying a DC current which is exposed to an oscillating magnetic field. This effect is attributed to the interaction between the transport current and moving fluxons, and can occur in various superconducting components including high temperature superconducting (HTS) flux pumps, fast-ramping magnets and HTS rotating machines. Although conventionally expressed in terms of a DC ‘resistance,’ the phenomenon is inherently transient in nature, and the voltage drop across the superconductor follows a time-dependent periodic waveform. Here we present experimental measurements of the dynamic resistance of different REBCO tapes carrying a DC current and exposed to an oscillating perpendicular field. Measurements of both the transient voltage waveforms and the time-averaged DC resistances are compared with numerical finite element simulations obtained using the H-formulation. We observe clear variations between the voltage response from different tapes, which can be understood in terms of their differing Jc(B, θ) dependence. In particular, a key feature of the experimentally measured waveforms is the emergence of a split ‘double peak’ at higher applied fields. Graphical visualisations of the finite element data show that this coincides with a periodic increase in Jc(B, θ) throughout the tape. This occurs during each cycle at those times when the applied field falls below the shielding threshold of the tape (as the penetrating field within the tape then approaches zero). Our findings show that models which assume a constant Jc irrespective of local field strength cannot capture the full range of behaviour observed by experiment. This emphasises the importance of employing experimentally measured Jc(B, θ) data when simulating transient effects in HTS materials.
Induced breeding of the riverine catfish Rita rita
Creators: name: Mollah, M.F.A
name: Amin, M.R
name: Sarowar, M.N
name: Muhammadullah, M.N
name: Mollah, M.F.A
name: Amin, M.R
name: Sarowar, M.N
name: Muhammadullah, M.N
Publisher: name: Unknown
Year: 2008
Subjects: Research Methods/ Statistical Methods
Resource /Energy Economics and Policy

description: The paper reports the first incidence of successful induction of breeding in the riverine catfish Rita rita using carp pituitary gland (PG) extract. A breeding trial using four PG doses viz. 80, 100, 120 and 140mg/kg body weight of fish was conducted to optimize the dose of pituitary gland (PG) extract in terms of induction of ovulation in female. The male received a dose of 40mg PG/kg body weight in all cases and was sacrificed for collection of milt. The best performance was shown by the fish treated with 100mg PG/kg body weight in respect of inducing ovulation in females and fertilization and hatching rates of eggs.
Plane polar Cremona maps of arbitrarily large degree in positive characteristic
Creators: name: Bignalet-Cazalet, Remi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13D02, 14E05, 14B05,

description: A result of I.V.Dolgachev states that the complex homaloidal polynomials in three variables, i.e. the complex homogeneous polynomials whose polar map is birational, are of degree at most three. In this note we describe homaloidal polynomials in three variables of arbitrarily large degree in positive characteristic. Using combinatorial arguments, we also classify line arrangements whose polar map is homaloidal in positive characteristic.
description: 12 pages, to appear in Geometria Dedicata; v2: corrections/updates of the bibliography + Section 3 is now dedicated to the classification of the homaloidal line arrangements in positive characteristic; Comments are welcome!
Assessment of the livelihood status of the fish farmers in some selected areas of Bagmara upazilla under Rajshahi district
Creators: name: Ali, M.H
name: Hossain, A.N.G.M
name: Hasan, M.A
name: Bashar, M.A
name: Ali, M.H
name: Hossain, A.N.G.M
name: Hasan, M.A
name: Bashar, M.A
Publisher: name: Unknown
Year: 2008
Subjects: Agricultural and Food Policy
Farm Management

description: The present investigation was carried out to assess the livelihood status of the fish farmers in Hamirkutsha and Kamarbari Unions of Bagmara upazilla under Rajshahi district during June to December 2006. Data were collected through the use of well structured questionnaire. Fifty farmers were included in this study who were directly involved in fish farming. Average pond size was 0.13 ha with single (64%) and multiple ownerships (36%). Most of the fishers were belonged to the age category of 31 to 40 years and average education level of 9.86 years of schooling, represented by 94% Muslims and 6% Hindus. About 54% of the farmers have tinshed house while 26, 14 and 6% of the farmers have half-building, building and kacha house, respectively. Average annual incomes of majority of fish farmers were above Tk. 75,000 per annum and 62% of the farmers used semi-pucca sanitary, 28% used pucca sanitary while only 10% used katcha sanitary. About 62% of the farmers had electricity facilities while 38% did not have and 88% of the farmers used own tube-well, while 12% of the farmers used neighbor’s tube-well. Forty six percent of the farmers received health service from village doctor or kobiraj, 18% have access to upazila health complex, 14% went to district hospital, 20% consulted with MBBS doctor and 2% of the farmers do not take any treatment due to lack of money. Lack of scientific knowledge, multiple ownerships and lack of capital for fish culture were the major constraints.
Strange Particle Production in p+p, p+Pb and Pb+Pb Interactions from NA49
Creators: name: Kadija, K.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Recent NA49 results on Lambda, Antilambda, Xi- and Antixi+ production in minimum bias p+p and centrality selected p+Pb collisions at 158 GeV/c, and the results on Lambda, Antilambda, K+ and K- production in central Pb+Pb collisions at 40, 80 and 158 A GeV are discussed and compared with other available data. By comparing the energy dependence of Lambda and Antilambda production at mid-rapidity a striking similarity is observed between p+p and A+A data. This is also seen in the energy dependence of the Lambda/pi ratio. K+/pi at mid-rapidity is affected in a similar way, due to the associated production of K+ together with Lambda particles. The observed yields increase faster than the number of wounded nucleons when comparing p+Pb to p+p. As already observed in A+A collisions, the increase is larger for multistrange than for strange baryons and for baryons than for anti-baryons.
description: 8 pages, 10 figures, To appear in proceedings of Strange Quark in Matter 2001-A Flavourspace Odyssey, Frankfurt am Main, Germany, 24-29. Sept. 2001
Culture possibility of scheilbeid catfish using formulated feed in natural pond
Creators: name: Razzaque, M.A
name: Mazid, M.A
name: Islam, M.N
name: Mansur, M.A
name: Razzaque, M.A
name: Mazid, M.A
name: Islam, M.N
name: Mansur, M.A
Publisher: name: Unknown
Year: 2008
Subjects: Research Methods/ Statistical Methods
Risk and Uncertainty

description: A research study was conducted to investigate the culture possibility of fresh water catfish Pangasius pangasius with formulated feed in natural ponds. The stocking density was chosen as 8000 fry/ha with an initial weight of 42.57+ 2.51 g. The formulated feed contained 45% fishmeal, 30% mustard oil cake, 15% wheat bran and 10% rice bran to supply 40.48% protein in feed. The growth of Pangasius pangasius in terms of net weight gain was found as 266.49g, which was statistically significant (p<0.05). The food conversion ratio (FCR) observed during this research study was high (7.58). There was no variation in the biochemical composition of the fish as a result of such culture technique and experimental conditions. The whole experiment was conducted for a period of 10 months. Production of fish was found to be 2.13 tones/ha using this formulated feed.
Dislocation-induced spin tunneling in Mn-12 acetate
Creators: name: Garanin, D. A.
name: Chudnovsky, E. M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Comprehensive theory of quantum spin relaxation in Mn-12 acetate crystals is developed, that takes into account imperfections of the crystal structure and is based upon the generalization of the Landau-Zener effect for incoherent tunneling from excited energy levels. It is shown that linear dislocations at plausible concentrations provide the transverse anisotropy which is the main source of tunneling in Mn-12. Local rotations of the easy axis due to dislocations result in a transverse magnetic field generated by the field applied along the c-axis of the crystal, which explains the presence of odd tunneling resonances. Long-range deformations due to dislocations produce a broad distribution of tunnel splittings. The theory predicts that at subkelvin temperatures the relaxation curves for different tunneling resonances can be scaled onto a single master curve. The magnetic relaxation in the thermally activated regime follows the stretched-exponential law with the exponent depending on the field, temperature, and concentration of defects.
description: 17 pages, 14 figures, 1 table, submitted to PRB
Evaluation of the status of use of chemicals and antibiotics in freshwater aquaculture activities with special emphasis to fish health management
Creators: name: Faruk, M.A.R
name: Ali, M.M
name: Patwary, Z.P
name: Faruk, M.A.R
name: Ali, M.M
name: Patwary, Z.P
Publisher: name: Unknown
Year: 2008
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Production Economics
subject: Productivity Analysis

description: The study was carried out to understand current status of use of chemicals and antibiotics in fish health management in freshwater aquaculture activities. Data were collected through questionnaire interview, personal contact, market survey and participatory rural appraisal like focus group discussion with fish and prawn farmers, retailers of animal medicine and representatives of pharmaceutical companies. A range of chemicals including antibiotics were found available in market. Fish health management and disease treatment were the major areas where majority of such chemicals have been used. Other uses included pond preparation and management, growth promotion and improvement of water quality to enhance pond productivity. Commonly found traditional chemicals in health management included Lime, Salt, Potassium permanganate, Sumithion, Melathion, Formalin, Bleaching powder and Malachite green. Of the new products JVzeolite, Geotox, Green zeolite, Orgavit aqua, Fish vitaplus, AQ grow-G, Oxy flow, Oxy max and O2-marine were most widely used compounds. Fourteen branded antibiotics were found in market of which Oxysentin, Renamox, Renamycin and Orgamycine were being widely used. Thirty three pharmaceutical companies were producing and marketing these products. The study also identified the problems associated with the use of chemicals which included lack of knowledge regarding use of chemicals, appropriate dose, method of application and indiscriminate use of chemicals.
The growth and superconducting properties of RE–Ba–Cu–O single grains with combined RE elements (RE = Gd and Y)
Creators: name: Shi, Yunhua
name: Bergamo-Andreis, Giovanni
name: Dennis, Anthony R
name: Durrell, John H
name: Cardwell, David A
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Paper
mixed rare earth
Gd and Y
EDX
RE-211 inclusions
growth of single grains
superconducting properties

description: Abstract: The superconducting properties, melting temperatures and crystal growth rates of single grain, RE–Ba–Cu–O [(RE)BCO] bulk superconductors (where RE = a rare earth element or yttrium) decrease with the RE-element sequence of Nd, Sm, Eu, Gd, Dy and Y. The mechanical properties of these technologically important materials, on the other hand, however, improve in the same sequence. Consequently, one promising approach for optimising the balance between mechanical and superconducting properties of bulk (RE)BCO superconductors, or for adjusting growth rate, is the use of combinations of different rare earth elements. In this study, we explore combinations of Gd and Y in the formation of (Gd–Y)–Ba–Cu–O single grains. We describe the optimisation of the growth process for this multi-RE element system and use optical and scanning electron microscopy to study the microstructure of both non-superconducting (Gd–Y)2BaCuO5 [(Y–Gd)-211] phase inclusions and the (Y–Gd)Ba2Cu3O7-δ [(Y–Gd)-123] phase matrix itself. We demonstrate that (Gd–Y)–Ba–Cu–O single grains can be fabricated reliably and that they exhibit reasonably good superconducting properties. We observe that there is an increase in RE-211 particle size in this mixed rare earth system, which, ultimately, limits sample performance, and conclude that this may be a general disadvantage of this approach to the synthesis of single grains for high field engineering applications.
Micronecta (Micronecta) minutissima Micronectidae
Creators: name: Fent, Meral
name: Kment, Petr
name: Çamur-Elipek, Belgin
name: Kirgiz, Timur
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Micronectidae
Micronecta
Micronecta minutissima

description: Micronecta (Micronecta) minutissima (Linnaeus, 1758) (Micronectidae)
 Turkey (not distinguished). Kıyak & Özsaraç (2001), Önder et al. (2006).
 General distribution. Europe including the South European Territory of Russia, Asian part of Kazakhstan; its record from Kirgizia needs confirmation (Jansson 1995, Protić 1998, Gogala 2003, Coulianos 2005, Coulianos et al. 2008). The records from Bosnia and Herzegovina, Croatia, and Macedonia (see Protić 1998) also need confirmation (A. Jansson, pers. comm. to B. Aukema 1999).
 Comment. Kıyak & Özsaraç (2001) listed the species with reference to Stichel (1955). However, Stichel (1955) listed it only from ‘Turkestan’, which refers to the former Russian Central Asia, not to Turkey. Önder et al. (2006) listed the species only from Turkey, without any details. We exclude the species from the list as there is apparently no published record of M. minutissima from Turkey.
 Identification. Jansson (1986a), Kanyukova (2006).
description: Published as part of Fent, Meral, Kment, Petr, Çamur-Elipek, Belgin & Kirgiz, Timur, 2011, Annotated catalogue of Enicocephalomorpha, Dipsocoromorpha, Nepomorpha, Gerromorpha, and Leptopodomorpha (Hemiptera: Heteroptera) of Turkey, with new records 2856, pp. 1-84 in Zootaxa 2856 (1) on pages 58-59, DOI: 10.11646/zootaxa.2856.1.1, http://zenodo.org/record/5286719
Robust paramagnetism in Bi2-xMxRu2O7 (M=Mn,Fe,Co,Ni,Cu) pyrochlore
Creators: name: Haas, M. K.
name: Cava, R. J.
name: Avdeev, M.
name: Jorgensen, J. D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report physical property characterization of Bi2-xMxRu2O7 pyrochlores, including magnetic suseptibility, resistivity, and Seebeck coefficients. The solid solution exists up to x=0.5 for (M=Cu,Ni,Co) and up to x=0.1 for (M=Fe,Mn). None of the doped materials exhibit ferromagnetism or any localized ruthenium moment behavior. Instead we find the Ru-O and Bi-O sublattices to be essentially independent, with any magnetism resulting from the unpaired transition metal dopant spins. Cobalt substitution for bismuth results in localized Co{2+}, and low temperature spin-glass transitions in several cases. Nickel moments on the pyrochlore lattice display properties intermediate to localized and itinerant. Finally, copper doping results in only an enhancement of the Pauli metallic density of states.
description: submitted, Phys. Rev. B
Infinitesimal symmetries in Contact Hamiltonian systems
Creators: name: de León, Manuel
name: Valcázar, Manuel Lainz
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: Dynamical Systems (math.DS)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper, we extend the well-known Noether theorem for Lagrangian systems to contact Lagrangian systems. We introduce a classification of infinitesimal symmetries and obtain the corresponding dissipated quantities. We notice that in contact dynamics, the existence of infinitesimal symmetries does not produce conserved quantities, but functions that dissipate at the same rate than the energy; so, the corresponding quotients are true conserved quantities.
Effect of storage conditions on quality and shelf life of selected winter vegetables
Creators: name: Jany, M.N.H
name: C. Sarker, M.A.R
name: Mazumder, M.F.H
name: Shikder, M.F.H
name: Jany, M.N.H
name: C. Sarker, M.A.R
name: Mazumder, M.F.H
name: Shikder, M.F.H
Publisher: name: Unknown
Year: 2008
Subjects: Livestock Production/Industries
Production Economics
Productivity Analysis

description: Cabbage, cauliflower, country bean, tomato and pea were stored in room temperature for 8 days, at refrigerated (4oC) temperature for 12 days and at freezing temperature (-180C) for 90 days. The vegetables were analyzed at every 2 days of storage period in room temperature, at the interval of 15 days at freezing and 3 days interval for refrigerated condition. Color, flavor, texture was better in freezing condition compared to the other conditions. The pH values after stored at room temperature 4.2, 4.32, 4.1, 3.33, 3.3, in refrigerated condition (without blanching) 4.83, 5.23, 3.33, 3.97, 4.37 and in refrigerated condition (with blanching) 3.27, 3.89, 3.98, 3.39, 4.77 and in freezing condition 5.47, 5.77, 4.76, 3.99 and 5.39 respectively. Vitamin C content of cabbage, cauliflower, country bean, tomato and pea after 8 days of storage at room temperature was 21.3 mg/100 g, 25.3 mg/100 g, 4.34 mg/100 g, 13.2 mg/100 g and 3.9 mg/100 g respectively. In refrigeration temperature (without blanching) after 12 days the values were 16.3 mg/100 g, 37.3 mg/100 g, 2.7 mg/100 g, 13.3 mg/100 g and 8.3 mg/100 g for cabbage, cauliflower, country bean, tomato and pea correspondingly. On the other hand in refrigeration condition (with blanching) vitamin C content of cabbage, cauliflower, country bean, tomato and pea were 3.3 mg/100 g, 18.3 mg/100 g, 2.4 mg/100 g, 2.9 mg/100 g and 9.3 mg/100 g in that order. Vitamin C content of cabbage, cauliflower, country bean, tomato and pea in freezing condition after 90 days of storage period were found 22.1 mg/100 g, 43.23 mg/100 g, 14.2 mg/100 g, 20.7 mg/100 g and 12.1 mg/100 g. The rate of weight loss increased with time progress of the storage period in all conditions.
Nodal domains statistics - a criterion for quantum chaos
Creators: name: Blum, Galya
name: Gnutzmann, Sven
name: Smilansky, Uzy
Publisher: name: arXiv
Year: 2001
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We consider the distribution of the (properly normalized) numbers of nodal domains of wave functions in 2-$d$ quantum billiards. We show that these distributions distinguish clearly between systems with integrable (separable) or chaotic underlying classical dynamics, and for each case the limiting distribution is universal (system independent). Thus, a new criterion for quantum chaos is provided by the statistics of the wave functions, which complements the well established criterion based on spectral statistics.
description: 4 pages, 5 figures, revtex
Decoherence from Vacuum Fluctuations
Creators: name: Buttiker, Markus
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Vacuum fluctuations are a source of irreversibility and decoherence. We investigate the persistent current and its fluctuations in a ring with an in-line quantum dot with an Aharonov-Bohm flux through the hole of the ring. The Coulomb blockade leads to persistent current peaks at values of the gate voltage at which two charge states of the dot have the same free energy. We couple the structure to an external circuit and investigate the effect of the zero-temperature (vacuum fluctuations) on the ground state of the ring. We find that the ground state of the ring undergoes a crossover from a state with an average persistent current much larger than the (time-dependent) mean squared fluctuations to a state with a small average persistent current and large mean squared fluctuations. We discuss the spectral density of charge fluctuations and discuss diffusion rates for angle variables characterizing the ground state in Bloch representation.
description: 6 pages, 2 figures, submitted for "Electronic Correlations: from meso- to nano-physics", edited by G. Montambaux and T. Martin, Rencontres de Moriond, (unpublished)
Anisops debilis subsp. canariensis Noualhier 1893
Creators: name: Fent, Meral
name: Kment, Petr
name: Çamur-Elipek, Belgin
name: Kirgiz, Timur
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Notonectidae
Anisops
Anisops debilis
Anisops debilis canariensis noualhier, 1893 (notonectidae)

description: Anisops debilis canariensis Noualhier, 1893 (Notonectidae)
 Asian Turkey. Kıyak et al. (2006).
 General distribution. Canary Islands, Madeira, Morocco, Cape Verde Islands, Ghana (Polhemus 1995). The previous record from Greece (Corfu Island) by Lindberg (1922b) is considered a misidentification (Lansbury 1964: 108, Polhemus 1995).
 Comment. Kıyak et al. (2006) published a record of A. debilis canariensis from Alanya province. Considering the nearest distribution of this subspecies in Morocco, this is most probably a case of misidentification. The record may refer to A. sardea or A. debilis perplexus, but in southern Turkey we cannot exclude the presence of additional species distributed in adjacent countries: A. crinitus Brooks, 1951 (Greece: Corfu, Iraq, Iran) and A. varius Fieber, 1851 (Israel, Syria) (Polhemus 1995e).
 Identification. Brooks (1951), Lansbury (1964), Nieser et al. (1994).
description: Published as part of Fent, Meral, Kment, Petr, Çamur-Elipek, Belgin & Kirgiz, Timur, 2011, Annotated catalogue of Enicocephalomorpha, Dipsocoromorpha, Nepomorpha, Gerromorpha, and Leptopodomorpha (Hemiptera: Heteroptera) of Turkey, with new records 2856, pp. 1-84 in Zootaxa 2856 (1) on page 61, DOI: 10.11646/zootaxa.2856.1.1, http://zenodo.org/record/5286719
Additional file 8 of Incorporating genetic networks into case-control association studies with high-dimensional DNA methylation data
Creators: name: Kipoong Kim
name: Hokeun Sun
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular 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: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Plant Biology

description: For each subtype of breast invasive carcinoma, overlapped genes among top 100 genes selected by three methods (Net+PC, Net+nPC, Net+sPC) are listed along with their selection probability (SP) computed by Net+nPC. This analysis includes only 9236 biologically linked genes.(PDF 140 kb)
Rare K decay: results and prospects
Creators: name: Littenberg, Laurence
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Recent results on rare kaon decays are reviewed and prospects for future experiments are discussed.
description: 14 pages, 11 figures, submitted to the Proc. 9th Intl. Symp. on Heavy Flavor Physics
Growth Setbacks in New Firms
Creators: name: Garnsey, Elizabeth
name: Heffernan, Paul
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: Growth; Setbacks; Cambridge; Technology-based Firms; Employment; Limits to Knowledge; Learning; Cohort Study; Complex Adaptive Systems

description: This paper examines setbacks in the early growth of new firms. Growth interruptions mark the unfolding, cumulative processes of firm growth overlooked in standard studies that use cross sectional methods. To probe for possible patterns in growth setbacks, we examined a cohort of 200 high technology firms founded in about 1990 and analysed the growth paths of survivors. Simple compression techniques yielded seven types of growth turning points. Growth setbacks are the norm even among firms with better growth records. Growth crises can be represented as a shift in phase state. To understand what such a shift implies, we focus on the micro-evidence relevant to processes of firm growth and illustrate growth crises from case studies. Growth crises represent both limits to knowledge and the means by which knowledge is revised and learning accelerated in the firm.
A statistical method for the identification of stars enriched in neutron-capture elements from medium-resolution spectra
Creators: name: Navó, G.
name: Tous, J. L.
name: Solanes, J. M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an automated statistical method that uses medium-resolution spectroscopic observations of a set of stars to select those that show evidence of possessing significant amounts of neutron-capture elements. Our tool was tested against a sample of $\sim 70,000$ F- and G-type stars distributed among $215$ plates from the Galactic Understanding and Exploration (SEGUE) survey, including $13$ that were directed at stellar Galaxy clusters. Focusing on five spectral lines of europium in the visible window, our procedure ranked the stars by their likelihood of having enhanced content of this atomic species and identifies the objects that exhibit signs of being rich in neutron-capture elements as those scoring in the upper $2.5\%$. We find that several of the cluster plates contain relatively large numbers of stars with significant absorption around at least three of the five selected lines. The most prominent is the globular cluster M3, where we measured a fraction of stars that are potentially rich in heavy nuclides, representing at least $15\%$.
description: 7 pages, 2 figures, accepted for publication in Astronomy & Astrophysics (v2)
Representing and approaching complex management issues - role and definition
Creators: name: Shehabuddeen, Noordin
name: Probert, David
name: Phaal, Rob
name: Platts, Ken
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019

description: The complex issues faced by management researchers can be described in many ways. However, this richness and variety can lead to a confusion of language. The paper confronts this issue by discussing the manner in which complex management concepts can be represented and approached. It proposes definitions for various related terms: paradigm, system, framework, map, model, process, procedure, technique, and tool. These definitions are presented from the perspective of manufacturing systems management, although they may be widely applicable in other fields. Dimensions for classifying and relating these definitions are identified based on a number of key characteristics. The forthcoming second part of this paper focuses on the development and validation of frameworks, as they play a central role in the research of management issues.
Influence of gravitational lensing on the determination of the luminosity function of background objects
Creators: name: Bukhmastova, Yu. L.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The distribution function of quasars with respect to apparent brightness is given, found under the assumption that quasars are, at least partially, the gravitationally enhanced images of the active nuclei of distant galaxies. A Schechter law and a two-power law for the luminosity function of the sources are used, as well as a probabilistic law of image enhancement for various models of gravitational lenses. To find the theoretical distribution function of quasars with respect to apparent brightness we use a theorem on the probability density of a product of random quantities. It is shown that the slope of this function ranges from -1 to -2 for faint quasars, like that for ordinary galaxies. In the case of bright quasars, the slope of the apparent brightness distribution function is determined mainly by the lensing effect and has a lower limit of -3. The good agreement between theory and observations suggests that statistically quasars are gravitationally enhanced images of the active nuclei of distant galaxies. If the initial assumptions are correct, then the luminosity function of galaxies and the apparent brightness function for quasars are not independent but are related by means of the differential lensing probability.
description: 7 pages, 3 figures. Translated from Astrofizika, V.45, N.2, pp. 231-239, April-June, 2002. Original article submitted December 28, 2001; accepted for publication January 25, 2002. Astronomy Reports V.41 N.4 (1997) 436-446
Middle Neolithic pits and a burial at West Amesbury, Wiltshire
Creators: name: Roberts, David
name: Barclay, Alistair
name: Bishop, Barry
name: Bronk-Ramsey, Christopher
name: Campbell, Greg
name: Canti, Matthew
name: Dobie, Judith
name: Dunbar, Elaine
name: Dunne, Julie
name: Evershed, Richard P.
name: Forward, Alice
name: Last, Jonathan
name: Lamb, Sophie
name: Linford, Neil
name: Linford, Paul
name: Linscott, Bethan
name: Madgwick, Richard
name: Marshall, Peter
name: Mays, Simon
name: McParland, Hayley
name: Payne, Andrew
name: Pelling, Ruth
name: Pike, Alistair
name: Price, Kathryn
name: Quinn, Patrick
name: Radini, Anita
name: Reimer, Paula
name: Russell, Michael
name: Smith, Rachael Seager
name: Soutar, Sharon
name: Speller, Camilla
name: Vallender, John
name: Valdez-Tullett, Andrew
name: Van Heekeren, Vivian
name: Worley, Fay
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology

description: Excavations on the south-eastern slopes of King Barrow Ridge, 1.5 km east of Stonehenge, revealed five pits, a grave and other features of Middle Neolithic date. Analysis of the pit assemblages and the partial inhumation interred in the grave has provided insights into lifeways in this landscape in the late fourth millennium cal BC. Evidence suggests that the area was visited by a pastoralist, mobile community on a semi-regular basis for a significant period, in late autumn or winter. Selected remnants of craft-working and consumption were deposited in pits, before deliberate infilling. These depositions repeatedly memorialised activity on the hillside at a time of contemporary activity elsewhere on King Barrow Ridge and at the future site of Stonehenge. Middle Neolithic pits are present in significant numbers across King Barrow Ridge, and alongside pits in the Durrington area, form one of the densest concentrations of such activity in the region. Long distance mobility is suggested by the possible Irish origins of the inhumation, the first Middle Neolithic individual excavated in the environs of Stonehenge. Whilst of significance for understanding the Middle Neolithic in the WHS and the region, this research also hints at the roots of Late Neolithic monumentalisation of this landscape.
Constraints on the Growth of Technology-based Firms – Perceptions and Effects
Creators: name: Heffernan, Paul
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019

description: The failure of small firms to grow into large enterprises has been identified as a significant problem for the economy of the UK. This study examines the constraints facing IT firms in the Software and Computing Services sector in particular. Research was undertaken in the form of interviews examining firm attributes and reported constraints. No clear patterns emerged linking specific constraints with patterns of growth, but the importance of effective management was a common theme. Apparent anomalies in the responses at interview direct attention to the important and interesting question of the extent to which the “constraints” on firms’ growth are determined by entrepreneurs’ perceptions and interpretations of their firms and the environments within which they operate.
Global simulations of Tayler instability in stellar interiors: The stabilizing effect of gravity
Creators: name: Guerrero, G.
name: Del Sordo, F.
name: Bonanno, A.
name: Smolarkiewicz, P. K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Unveiling the evolution of toroidal field instability, known as Tayler instability, is essential to understand the strength and topology of the magnetic fields observed in early-type stars, in the core of the red giants, or in any stellar radiative zone. We want to study the non-linear evolution of the instability of a toroidal field stored in a stably stratified layer, in spherical symmetry and in the absence of rotation. In particular, we intend to quantify the suppression of the instability as a function of the Brunt-Väisäla ($ω_{\rm BV}$) and the Alfvén ($ω_{\rm A}$) frequencies. We use the MHD equations as implemented in the anelastic approximation in the EULAG-MHD code and perform a large series of numerical simulations of the instability exploring the parameter space for the $ω_{\rm BV}$ and $ω_{\rm A}$. We show that beyond a critical value gravity strongly suppress the instability, in agreement with the linear analysis. The intensity of the initial field also plays an important role: weaker fields show much slower growth rates. Moreover, in the case of very low gravity, the fastest growing modes have a large characteristic radial scale, at variance with the case of strong gravity, where the instability is characterized by horizontal displacements. Our results illustrate that the anelastic approximation can efficiently describe the evolution of toroidal field instability in stellar interiors. The suppression of the instability as a consequence of increasing values of $ω_{\rm BV}$ might play a role to explain the magnetic desert in Ap/Bp stars since weak fields are only marginally unstable in the case of strong gravity.
description: 11 pages, 11 figures, Accepted for publication in MNRAS
Employment growth of new firms
Creators: name: Stam, Erik
name: Gibcus, Petra
name: Telussa, Jennifer
name: Garnsey, Elizabeth
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: new firms, firm growth, innovation, dynamic capabilities

description: This paper analyses the association between dynamic capabilities and new firm growth, controlling for measures of firm resources, characteristics of the entrepreneur, and aspects of the environment. The central research question is: How strong is the relationship between dynamic capabilities and the growth of new firms? The paper opens with a review of empirical studies on employment growth in new firms and then moves on to a discussion on the role of dynamic capabilities in the explanation of new firm growth. After a description of the data and variables the results and implications of this study are discussed