cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Rational homological stability for groups of partially symmetric automorphisms of free groups
Creators: name: Zaremsky, Matthew C. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F65, 20F28, 57M07

description: Let F_{n+m} be the free group of rank n+m, with generators x_1,...,x_{n+m}. An automorphism ϕof F_{n+m} is called partially symmetric if for each 1 \le i \le m, ϕ(x_i) is conjugate to x_j or x_j^{-1} for some 1 \le j \le m. Let Σ\Aut_n^m be the group of partially symmetric automorphisms. We prove that for any m \ge 0 the inclusion Σ\Aut_n^m \to Σ\Aut_{n+1}^m induces an isomorphism in rational homology for dimensions i satisfying n \ge (3(i+1)+m)/2, with a similar statement for the groups PΣ\Aut_n^m of pure partially symmetric automorphisms. We also prove that for any n \ge 0 the inclusion Σ\Aut_n^m \to Σ\Aut_n^{m+1} induces an isomorphism in rational homology for dimensions i satisfying m > (3i-1)/2.
description: v2: Updated to reflect changes made to arxiv:0907.4642. v3: Significant simplification of Section 4.3 and Lemma 5.2. v4: Reorganized paper, most notably switched order of sections 4 and 5, and generally improved formatting/readability. Also added more historical background to introduction. Results and methods unchanged. 20 pages, 7 figures
Pachnessa Brenske 1894
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Pachnessa

description: Pachnessa Brenske, 1894b
[6 species].
Type species Pachydema nicobarica Redtenbacher, 1868, by monotypy.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 137, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Zur Behandlung der distalen Radiusfrakturen vom Typ AO 23 A2, A3 und C1 beim älteren Patienten
Creators: name: Göhre, Felix
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2008
Subjects: subject: Hochschulschrift
subject: Online-Publikation
subject: Zsfassung in engl. Sprache
subject: 617.1

description: Wir haben eine prospektive, randomisierte Studie zum Vergleich der funktionellen Ergebnisse bei der operativen Behandlung von distalen Radiusfrakturen des Typs AO 23 A2, A3 und C1 beim älteren Patienten durchgeführt. Zwischen Oktober 2004 und Dezember 2006 wurden 40 Patienten eingeschlossen die mindestens 65 Jahre alt waren. Einundzwanzig wurden mit der palmaren winkelstabilen Plattenosteosynthese und 19 Patienten mit der K-Draht-Fixierung behandelt. Wir konnten zeigen, dass die funktionellen Ergebnisse nach einem Jahr in beiden Studiengruppen gleich waren. Insgesamt konnten 76% der Plattenosteosynthese-Gruppe und 86% der K-Draht-Gruppe ein gutes funktionelles Ergebnis erreichen (Castaing-Score). Der mediane DASH-Score betrug nach einem Jahr drei in beiden Studiengrupen. Die Patienten mit der palmaren winkelstabilen Plattenosteosynthese konnten um vier Wochen früher wieder den "Aktivitäten des täglichen Lebens" nachgehen. Die häufigste Komplikation war das auftreten eine intermittierenden Karpaltunnelsyndroms. Beide Methoden eignen sich zur Behandlung der distalen Radiusfraktur des Typs AO 23 A2, A3 und C1 des älteren Patienten.
description: We performed a prospective, randomized study to compare the functional outcome after operative treatment with palmar fixed angle plate-fixation and k-wire-fixation in unstable distal radius fractures of type AO 23 A2, AO 23 A3 and AO 23 C1 in elderly patients. Between October 2004 and December 2006 we included 40 patients older than 65 years. Twenty one patients were treated with plate fixation and nineteen with k-wire-fixation. We could show that the functional results after one year are nearly the same in both treatment groups. Overall, 76% of the patients with plate fixation and 89% of patients with k-wire fixation present a good result. The median DASH-Score was three in both groups after one year. The patients with plate-fixation could four weeks earlier return to the activities of daily living. The most common complication was an intermediate posttraumatic carpal tunnel syndrome. Booth methods are suitable for the treatment of distal radius fractures of AO - type 23 A2, A3 and C1 in elderly patients.
130 GeV Fermi gamma-ray line from dark matter decay
Creators: name: Kyae, Bumseok
name: Park, Jong-Chul
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The 130 GeV gamma-ray line based on tentative analyses on the Fermi-LAT data is hard to be understood with dark matter annihilation in the conventional framework of the MSSM. We point out that it can be nicely explained with two body decay of a scalar dark matter ($\tildeϕ_{\rm DM}\rightarrowγγ$) by the dimension 6 operator suppressed with the mass of the grand unification scale ($\sim 10^{16}$ GeV), ${\cal L}\supset|\tildeϕ_{\rm DM}|^2F_{μν}F^{μν}/M_{\rm GUT}^2$, in which the scalar dark matter $\tildeϕ_{\rm DM}$ develops a TeV scale vacuum expectation value. We propose a viable model explaining the 130 GeV gamma-ray line.
description: 10 pages, 1 figure; typos fixed, version published in PLB
A proposal of a bi-directional amplifier based on tunneling diodes for RF tagging system
Creators: name: Cidronali, A.
name: Collodi, G.
name: Deshpande, M.
name: El-Zein, N.
name: Manes, G.
name: Nair, V.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: A bi-directional amplifier (BDA) utilizing the negative resistance of Heterojunction Interband Tunnel Diode (HITD) is proposed. Expected features of the BDA are: 1) symmetry and reciprocity of the associated scattering matrix; 2) gain at extremely low DC power consumption. These features make the circuits an enabling electronic function for RF identification tag. The BDA topology consisted of a pair of HITDs biased in the negative dynamic region (NDR) and a lumped element directional coupler with arbitrary impedance terminations. The design techniques along with an experimental validation are provided.
Humanitarian intervention and rhetorical paralysis : sources and effects of moral rhetoric in the UN Security Council
Creators: name: Slota-Newson, Sam
Publisher: name: University of British Columbia
Year: 2013

description: This thesis investigates the causes and effects of moral rhetoric on the Security Council’s ability to respond to humanitarian crises. It identifies that Absolutist Moral Rhetorical Positioning (AMRP) can stem from cosmopolitan norms, reputational costs, and the structure and norms of the UN itself. When addressing humanitarian crises, these sources lead states to cross from argumentation into justification, which obscures deliberation and obstructs pragmatic outcomes. The effects of AMRP, evident in individual cases and the trajectory of intervention, are explored through analysis of Kosovo, Libya and Syria. AMRP manifests most notably through moral hazard, mission creep and Security Council deadlock; ultimately the effects are seen in the Security Council’s inconsistent responses, and consistent inability to find the most effective solution, when confronted by humanitarian crises.
Bayesian Implications of Current LHC Supersymmetry and Dark Matter Detection Searches for the Constrained MSSM
Creators: name: Roszkowski, Leszek
name: Sessolo, Enrico Maria
name: Tsai, Yue-Lin Sming
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the impact of recent limits from LHC searches for supersymmetry and from direct and indirect searches for dark matter on global Bayesian inferences of the parameter space of the Constrained Minimal Supersymmetric Standard Model (CMSSM). In particular we apply recent exclusion limits from the CMS α_T analysis of 1.1/fb of integrated luminosity, the current direct detection dark matter limit from XENON100, as well as recent experimental constraints on γ-ray fluxes from dwarf spheroidal satellite galaxies of the Milky Way from the FermiLAT telescope, in addition to updating values for other non-LHC experimental constraints. We extend the range of scanned parameters to include a significant fraction of the focus point/hyperbolic branch region. While we confirm earlier conclusions that at present LHC limits provide the strongest constraints on the model's parameters, we also find that when the uncertainties are not treated in an excessively conservative way, the new bounds from dwarf spheroidal have the power to significantly constrain the focus point/hyperbolic branch region. Their effect is then comparable, if not stronger, to that from XENON100. We further analyze the effects of one-year projected sensitivities on the neutrino flux from the Sun in the 86-string IceCube+DeepCore configuration at the South Pole. We show that data on neutrinos from the Sun, expected for the next few months at IceCube and DeepCore, have the potential to further constrain the same region of parameter space independently of the LHC and can yield additional investigating power for the model.
description: 27 pages, 7 figures, version published in PRD
4W TX/RX Multi Chip Module for 6-18GHz Phased Array
Creators: name: Bartocci, M.
name: De Santis, G.
name: Giolo, G.
name: Rossi, L.
name: Gemma, M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: A complete Tx/Rx module for avionic and naval applications was developed and tested. A multifunction PHEMT MMIC chip set was realized. Multi chip integration in hermetic MoCu package was adopted in order to reduce cost, space and assembly time. High performances in the Tx channel was achieved using a 4W wideband amplifier.
X-BAND technologies and MMICS comparison for active phased Array Radar
Creators: name: Murgadella, F.
name: Coulon, P.
name: Moreau, C.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: During the last 3 years, the French MOD has supported Technologies developments or Specific MMICs design for power amplification from S-Band to Ku-Band (i.e. 18 GHz), for radar and electronic warfare applications. In this paper, we aim at presenting and analysing the results obtained on three X-Band power amplifiers using different GaAs technologies and designs to answer to the same specifications target. This comparison was conducted from a technological and measurement point of view and according to an exhaustive test plan suited to T/R module evaluation. State of the Art results are promising and able to fulfil military needs in the near future.
Verb classes in Kwaḱwala
Creators: name: Greene, Hannah
Publisher: name: University of British Columbia
Year: 2013

description: This thesis examines the aspectual system of Kwaḱwala, a Northern Wakashan language of British Columbia. I explore both the lexical and grammatical aspect system, and the interaction between the two systems. Instead of the traditional Vendlerian verb classes of states, activities, accomplishments and achievements, I propose that Kwaḱwala employs just three verb classes: states, processes and transitions. With regard to the grammatical aspect system, this thesis focuses on the description and analysis of the aspect suffix -x'id. I propose that this suffix is a perfective suffix which asserts only that an initial transition into an event has occurred within reference time. The thesis also offers a brief description of the contemporary Kwaḱwala tense system as well as the continuous aspect suffix, -ala.
Ku & C Band solid state switch matrix for satellite payloads using LTCC multilayer substrate
Creators: name: Colicchia, L.
name: Comparini, M.C.
name: Di Nardo, S.
name: Leone, C.
name: Giordano, M.
name: Ranieri, P.
name: Suriani, A.
name: Tursini, M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: This paper describes the design and development of Ku and C band solid state switch matrix for multimedia satellite payloads. The design, through the use of advanced packaging techniques, allows significant savings on mass and volume with respect to traditional electromechanical switches while guaranteeing a comparable reliability.
Pachycolus Erichson 1847
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Pachycolus

description: Pachycolus Erichson, 1847
[1 species].
Type species Pachycolus madagascariensis Blanchard, 1850, by subsequent monotypy.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 137, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Additional file 1 of Scrotal self-inflicted gunshot injuries: report of two consecutive cases and literature review
Creators: name: Ukpong, Albert Efiong
name: Akaiso, Okon Edet
name: Udo, Elijah Asuquo
name: Essiet, Ifiok  Udo
name: Peter, Oto-bong Okpoho
name: Etim, Ifiok Paul
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. CARE Checklist Information File.
Size bias and differential lensing of strongly lensed, dusty galaxies identified in wide-field surveys
Creators: name: Hezaveh, Yashar D.
name: Marrone, Daniel P.
name: Holder, Gilbert P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We address two selection effects that operate on samples of gravitationally lensed dusty galaxies identified in millimeter- and submillimeter-wavelength surveys. First, we point out the existence of a "size bias" in such samples: due to finite source effects, sources with higher observed fluxes are increasingly biased towards more compact objects. Second, we examine the effect of differential lensing in individual lens systems by modeling each source as a compact core embedded in an extended diffuse halo. Considering the ratio of magnifications in these two components, we find that at high overall magnifications the compact component is amplified by a much larger factor than the diffuse component, but at intermediate magnifications (~10) the probability of a larger magnification for the extended region is higher. Lens models determined from multi-frequency resolved imaging data are crucial to correct for this effect.
description: 7 pages, 6 figures
0.12 µm GATE LENGTH In0.52Al0.48As/In0.53Ga0.47As HEMTs on transferred substrate
Creators: name: Bollaert, S.
name: Wallart, X.
name: Lepilliet, S.
name: Cappy, A.
name: Jalaguier, E.
name: Pocas, S.
name: Aspar, B.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: New In0.52Al0.48As/In0.53Ga0.47As transferred-substrate high electron mobility transistors (TS-HEMTs) have been successfully fabricated on 2 inch Silicon substrate with 0.12 µm T-shaped gate length. These new TS-HEMTs exhibit typical drain currents of 450 mA/mm and extrinsic transconductance up to 770 mS/mm. An extrinsic current cutoff frequency fT of 185 GHz is obtained. That result is the first reported for In0.52Al0.48As/In0.53Ga0.47As TS-HEMTs on Silicon substrate.
Additional file 6 of iTRAQ-based quantitative proteomic analysis of peripheral blood serum in piglets infected with Actinobacillus pleuropneumoniae
Creators: name: Zhu, Rining
name: Bao, Chuntong
name: Liu, Baijun
name: Xiao, Jiameng
name: Sun, Changjiang
name: Feng, Xin
name: Langford, P. R.
name: Li, Yang
name: Lei, Liancheng
Publisher: name: figshare
Year: 2020
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 6: Table. S6. Representative down-regulated proteins in the serum of the “S120-Vs-S24” stage with a 2.0-fold change.
Pachydema Laporte 1832
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Pachydema

description: Pachydema Laporte, 1832a
[106 species and 1 additional subspecies].
Type species Pachydema nigricans Laporte, 1832 (= Pachydema hirticollis (Fabricius, 1787)), by monotypy.
Dasysterna: Dejean 1833.
Unavailable name.
Phlexis Erichson, 1841 (not Phlexis Hartlaub, 1866).
Type species Phlexis wagneri Erichson, 1841, by monotypy.
Synonymy by Burmeister (1855).
Artia Rambur, 1843.
Type species Artia cartaginensis Rambur, 1843, by monotypy.
Synonymy by Burmeister (1855).
Dasysterna Rambur, 1843 (not Dasysterna Turner, 1904, nor Dasysterna Zimin, 1951).
Type species Dasysterna barbara Rambur, 1843, by subsequent designation of Duponchel (1844).
Synonymy by Burmeister (1855).
Ootoma Blanchard, 1850 (not Ootoma Koperberg, 1931).
Type species Melolontha castanea Brullé, 1838, by subsequent designation of Lacroix (2007).
Synonymy by Burmeister (1855).
Pachydema (Sparophysa) Burmeister, 1855.
Type species Pachydema bullata Burmeister, 1855, by subsequent designation of Smetana & Smith (2006).
Synonymy by Harold (1869b).
Flatipalpus Fairmaire, 1873.
Type species Flatipalpus albolanosus Fairmaire, 1873, by monotypy.
Synonymy by Dalla Torre (1913).
Pachydema (Phygotoxeuma) Brenske, 1897.
Type species Pachydema (Phygotoxeuma) theryi Brenske, 1897 (= Pachydema peltastes (Marseul, 1878)), by monotypy.
Synonymy by Dalla Torre (1913).
Pachydema (Physopalpus) Heyden, 1899.
Type species Pachydema rufina Fairmaire, 1879 (= Pachydema xanthochroa Fairmaire, 1879), by monotypy.
Synonymy by Dalla Torre (1913).
Oromia López-Colón, 1989.
Type species Melolontha obscura Brullé, 1838, by original designation.
Oromiella López-Colón, 1992.
Replacement name for Oromia López-Colón, 1989, not Oromia Alonso Zarazaga, 1987.
Synonymy by Baraud (1994).
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 137, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Funktionelle Charakterisierung einer Isoprenyldiphosphat-Synthase aus Arabidopsis thaliana
Creators: name: Bernholz, Carolin
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2018
Subjects: subject: Arabidopsis thaliana; Isoprenyldiphosphat Synthasen; Geranylfarnesyldiphosphat; Nicotiana benthamiana Laser-Scanning-Mikroskop; Wurzeln; Chloroplast;Lokalisation; Sekundärstoffwechsel; Sesterterpene
subject: Arabidopsis thaliana; Isoprenyl diphosphate synthases; geranylfarnesyl diphosphate; Nicotiana benthamiana Laser Scanning Microscopy; roots; chloroplast; localization; secondary metabolism; sesterterpenes
subject: 572

description: Isoprenyldiphosphat-Synthasen produzieren in jedem lebenden Organismus die Vorläufer für eine Vielzahl von essentiellen Metaboliten des Primär- und Sekundärstoffwechsels. Dabei nutzen sie Isopentenyldiphosphat und Dimethylallyldiphosphat als Bausteine, um Kurzketten-Isoprenyldiphosphate wie Geranyldiphosphat (C10), Farnesyldiphosphat (C15) oder Geranylgeranyldiphosphat (C20) zu produzieren. Im Rahmen der vorliegenden Arbeit wurde der Frage nachgegangen, ob in höheren Pflanzen, wie der Modellpflanze Arabidopsis thaliana, auch längerkettigere Isoprenyldiphosphate existieren. Hierbei zeigte sich, dass die AtIDS9 (At3g29430) das 25 Kohlenstoffatome umfassenden Geranylfarnesyldiphosphat synthetisieren kann. Durch eine umfassende Charakterisierung dieses Enzymes konnten zudem ein umfassender Einblick in die Substrat- und Produktspezifität, Kinetik, Lokalisation sowie erste Anhaltspunkte über die biologische Funktion dieses Enzyms gewonnen werden.
description: Isoprenyl diphosphate synthases produce the precursors for a variety of essential metabolites of the primary and secondary metabolism in every living organism. Thereby they uses isopentenyl diphosphate and dimethylallyl diphosphate as building blocks to produce short chained isoprenyl diphosphates such as geranyl diphosphate (C10), farnesyl diphosphate (C15) and geranylgeranyl diphosphate (C20). In the context of this thesis the question was asked, whether longer chained isoprenyl diphosphates exist in higher plants such as the model organism Arabidopsis thaliana. At that it turned out that the AtIDS9 (At3g29430) is able to produce the 25 carbon atoms enclosing geranylfarnesyl diphosphate. A comprehensive analysis of this enzyme revealed detailed information about its substrate and product specificity, kinetics and localization within the plant as well as first hints of its biological function.
Quantum teleportation and entanglement distribution over 100-kilometre free-space channels
Creators: name: Yin, Juan
name: Ren, Ji-Gang
name: Lu, He
name: Cao, Yuan
name: Yong, Hai-Lin
name: Wu, Yu-Ping
name: Liu, Chang
name: Liao, Sheng-Kai
name: Zhou, Fei
name: Jiang, Yan
name: Cai, Xin-Dong
name: Xu, Ping
name: Pan, Ge-Sheng
name: Jia, Jian-Jun
name: Huang, Yong-Mei
name: Yin, Hao
name: Wang, Jian-Yu
name: Chen, Yu-Ao
name: Peng, Cheng-Zhi
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A long standing goal for quantum communication is to transfer a quantum state over arbitrary distances. Free-space quantum communication provides a promising solution towards this challenging goal. Here, through a 97-km free space channel, we demonstrate long distance quantum teleportation over a 35-53 dB loss one-link channel, and entanglement distribution over a 66-85 dB high-loss two-link channel. We achieve an average fidelity of {80.4(9)}% for teleporting six distinct initial states and observe the violation of the Clauser-Horne-Shimony-Holt inequality after distributing entanglement. Besides being of fundamental interest, our result represents a significant step towards a global quantum network. Moreover, the high-frequency and high-accuracy acquiring, pointing and tracking technique developed in our experiment provides an essential tool for future satellite-based quantum communication.
description: 9 pages, 8 figures
Quasi-Monolithic integration technology (QMIT) for power applications
Creators: name: Joodaki, M.
name: Senyildiz, T.
name: Kompa, G.
name: Hillmer, H.
name: Leinhos, T.
name: Kassing, R.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: In this paper, we address the most important issues related to realisation of µ-wave and mm-wave circuits containing power devices in the novel technology of Quasi-Monolithic Integration Technology (QMIT). A finite element simulator (2D and 3D), a scanning probe microscopy (SPM), a nanometer surface profiler (DEKTAK) and a Peltier element (PE) have been used to optimise the standard structure of QMIT with respect to these issues and limitations in fabrication process.
The first important issue is the thermal resistance of QMIT structure. Using a 2D finite element method, the effects of the most important parameters on thermal resistance such as the distance between active device and substrate (W), the thermal conductivity of glue (kepoxy) and use of a heat spreader to decrease thermal resistance have been investigated in detail.
The second important issue is the induced thermal stress in QMIT structure which results from differences in thermal expansion coefficient of materials involved. A 3D finite element simulator, a scanning probe microscopy (SPM) measurements and a nanometer surface profiler (DEKTAK) accompanied with a Peltier element (PE) have been used to simulate and measure the thermal stress distribution in QMIT standard structure. Then, the effect of the most important parameters such as W, baking temperature of epoxy and material properties of epoxy have been described in detail.
Non-Trivial Ghosts and Second Class Constraints
Creators: name: Chishtie, Farrukh
name: McKeon, D. G. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a model in which a vector gauge field $W_μ^a$ is coupled to an antisymmetric tensor field $ϕ_{μν}^a$ possessing a pseudoscalar mass, it has been shown that all physical degrees of freedom reside in the vector field. Upon quantizing this model using the Faddeev-Popov procedure, explicit calculation of the two-point functions $$ and $$ at one-loop order seems to have yielded the puzzling result that the effective action generated by radiative effects has more physical degrees of freedom than the original classical action. In this paper we point out that this is not in fact a real effect, but rather appears to be a consequence of having ignored a "ghost" field arising from the contribution to the measure in the path integral arising from the presence of non-trivial second-class constraints. These ghost fields couple to the fields $W_μ^a$ and $ϕ_{μν}^a$, which makes them distinct from other models involving ghosts arising from second-class constraints (such as massive Yang-Mills (YM) models) that have been considered, as in these other models such ghosts decouple. As an alternative to dealing with second class constraints, we consider introducing a "Stueckelberg field" to eliminate second-class constraints in favour of first-class constraints and examine if it is possible to then use the Faddeev-Popov quantization procedure. In the Proca model, introduction of the Stueckelberg vector is equivalent to the Batalin-Fradkin-Tyutin (BFT) approach to converting second-class constraints to being first class through the introduction of new variables. However, introduction of a Stueckelberg vector is not equivalent to the BFT approach for the vector-tensor model. In an appendix, the BFT procedure is applied to the pure tensor model and a novel gauge invariance is found.
description: 23 pages, LaTeX2e format
Additional file 1 of Mapping male circumcision for HIV prevention efforts in sub-Saharan Africa
Creators: name: Cork, Michael A.
name: Wilson, Kate F.
name: Perkins, Samantha
name: Collison, Michael L.
name: Deshpande, Aniruddha
name: Eaton, Jeffrey W.
name: Earl, Lucas
name: Haeuser, Emily
name: Justman, Jessica E.
name: Kinyoki, Damaris K.
name: Mayala, Benjamin K.
name: Mosser, Jonathan F.
name: Murray, Christopher J. L.
name: Nkengasong, John N.
name: Piot, Peter
name: Sartorius, Benn
name: Schaeffer, Lauren E.
name: Serfes, Audrey L.
name: Sligar, Amber
name: Steuben, Krista M.
name: Tanser, Frank C.
name: VanderHeide, John D.
name: Yang, Mingyou
name: Wabiri, Njeri
name: Hay, Simon I.
name: Dwyer-Lindgren, Laura
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1.
Auslander-Reiten conjecture and Auslander-Reiten duality
Creators: name: Celikbas, Olgur
name: Takahashi, Ryo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13D07 (Primary) 13C13, 13C14, 13H10 (Secondary)

description: Motivated by a result of Araya, we extend the Auslander-Reiten duality theorem to Cohen-Macaulay local rings. We also study the Auslander-Reiten conjecture, which is rooted in Nakayama's work on finite dimensional algebras. One of our results detects a certain condition that forces the conjecture to hold over local rings of positive depth.
description: 16 pages, to appear in Journal of Algebra
Topological pressure of simultaneous level sets
Creators: name: Climenhaga, Vaughn
Publisher: name: arXiv
Year: 2011
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37C45, 37D35

description: Multifractal analysis studies level sets of asymptotically defined quantities in a topological dynamical system. We consider the topological pressure function on such level sets, relating it both to the pressure on the entire phase space and to a conditional variational principle. We use this to recover information on the topological entropy and Hausdorff dimension of the level sets. Our approach is thermodynamic in nature, requiring only existence and uniqueness of equilibrium states for a dense subspace of potential functions. Using an idea of Hofbauer, we obtain results for all continuous potentials by approximating them with functions from this subspace. This technique allows us to extend a number of previous multifractal results from the $C^{1+ε}$ case to the $C^1$ case. We consider ergodic ratios $S_n ϕ/S_n ψ$ where the function $ψ$ need not be uniformly positive, which lets us study dimension spectra for non-uniformly expanding maps. Our results also cover coarse spectra and level sets corresponding to more general limiting behaviour.
description: 32 pages, minor changes based on referee's comments
Gauge invariance and asymptotic behavior for the Ginzburg-Landau equations of superconductivity
Creators: name: Berti, V.
name: Fabrizio, M.
name: Giorgi, C.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: MAT/07 Fisica matematica

description: In this paper we study the gauge-invariance of the time-dependent Ginzburg Landau equations through the introduction of a model which uses observable variables. Since different choices of gauge lead to a different representation of such variables, the classical formulations of the Ginzburg Landau model  do not allow to establish the property of gauge-invariance. With a suitable decomposition of the unknown fields, we write the problem in terms of real variables and deduce some energy estimates which prove the existence of a maximal attractor for the system.
On multipartite Hajnal-Szemerédi theorems
Creators: name: Han, Jie
name: Zhao, Yi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let $G$ be a $k$-partite graph with $n$ vertices in parts such that each vertex is adjacent to at least $δ^*(G)$ vertices in each of the other parts. Magyar and Martin \cite{MaMa} proved that for $k=3$, if $δ^*(G)\ge 2/3n $ and $n$ is sufficiently large, then $G$ contains a $K_3$-factor (a spanning subgraph consisting of $n$ vertex-disjoint copies of $K_3$) except that $G$ is one particular graph. Martin and Szemerédi \cite{MaSz} proved that $G$ contains a $K_4$-factor when $δ^*(G)\ge 3/4n$ and $n$ is sufficiently large. Both results were proved by the Regularity Lemma. In this paper we give a proof of these two results by the absorbing method. Our absorbing lemma actually works for all $k\ge 3$.
description: 15 pages, no figure
Additional file 1 of Gateway-compatible vectors for functional analysis of proteins in cell type specific manner
Creators: name: Zhang, Liu
name: Zhao, Yang
name: Liang, Haiyan
name: Li, Xugang
name: Gallagher, Kimberly L.
name: Wu, Shuang
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology

description: Additional file 1: Figure S1. Previously reported 35S:SIEL-YFP often shows transgene silencing in the meristem. Dotted line and arrow heads indicate the silenced cells.
Additional file 2 of Gateway-compatible vectors for functional analysis of proteins in cell type specific manner
Creators: name: Zhang, Liu
name: Zhao, Yang
name: Liang, Haiyan
name: Li, Xugang
name: Gallagher, Kimberly L.
name: Wu, Shuang
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology

description: Additional file 2: Figure S2. The Gateway-compatible vectors of pWOL. (a) The vectors shown in A were further modified by adding pWOL into MCS-1 at 5′ terminus of the gateway cassette. (b) The confocal iamges are pWOL:erGFP.
Polarization for Prompt J/psi, psi(2s) production at the Tevatron and LHC
Creators: name: Gong, Bin
name: Wan, Lu-Ping
name: Wang, Jian-Xiong
name: Zhang, Hong-Fei
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Based on nonrelativistic QCD, we present the first complete next-to-leading order study on the polarization of prompt J/psi hadroproduction by including feeddown from chi_c(^3P_J^1,^3S_1^8) and psi(2s) which turn out to be a very important part. By using the color-octet long-distance matrix elements obtained from a combined fit of the differential cross section measurements at the Tevatron and LHC for J/psi, psi(2s) and chi_c with p_t>7GeV, the prompt J/psi polarization predictions are presented, and the results are in agree with the CDF Run-I data (except two points), but in conflict with the CDF Run-II data, while are close to the ALICE data (inclusive J/psi) at LHC. The experimental measurements at the LHC are strongly expected to clarify the situation.
description: 4 pages, 4 figures, published at PRL
Evaluating the impact of climate change on Canadian Prairie agriculture
Creators: name: Ayouqi Pourtafti, Hossein
Publisher: name: University of British Columbia
Year: 2013

description: Climate change is a long-term shift in the average weather conditions that threatens settlements, societies, and industries. Agriculture is one of the most climate-sensitive industries since the production in this sector is highly dependent on various weather factors. The main objective of this study is to evaluate the economic impact of climate change on Canadian Prairie agriculture using the well-known Ricardian model. The Ricardian model is best described as a hedonic regression of farmland value on an assortment of climatic and non-climatic variables. This model is widely used in economic analysis because it captures farmers’ adaptation strategies to climate change. To estimate the parameters of the Ricardian model, three methods are utilized: pooled weighted least squared (WLS), random effects, and spatial random effects. The estimated coefficients are used to predict the impact of three potential climate and price change scenarios on farmland value in the Canadian Prairies. The main contributions of this study relative to existing studies are: the use of updated data, the inclusion of expected prices rather than actual prices in the model, and the utilization of spatial econometrics methods to estimate the model. The estimated marginal impacts of climate demonstrate that an increase in rainfall and winter, spring, and fall temperatures will increase farmland value; the effect is opposite for July temperature. The signs of the marginal impacts of rainfall and July temperature reveal that water availability plays a very important role in crop production on the Canadian Prairies. Overall, climate change is predicted to increase the value of farm land on the Canadian Prairies by an average of 0.9% to 3.87% annually. However, the northern part of Saskatchewan and the north-eastern part of Alberta are forecasted to experience a decrease in farmland value under a medium climate change scenario. The current analysis predicts that farm welfare in the Prairies will increase by about $1.14 - $4.1 billion annually as a result of climate change. This suggests that with proper adaptations, climate change can be beneficial for Prairie agriculture.
Additional file 1 of The use of health facility data to assess the effects of armed conflicts on maternal and child health: experience from the Kivu, DR Congo
Creators: name: Malembaka, Espoir Bwenge
name: Altare, Chiara
name: Bigirinama, Rosine Nshobole
name: Bisimwa, Ghislain
name: Banywesize, Robert
name: Tabbal, Nabil
name: Boerma, Ties
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Neuroscience
Biotechnology
Science Policy

description: Additional file 1.
Positive words carry less information than negative words
Creators: name: Garcia, David
name: Garas, Antonios
name: Schweitzer, Frank
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computation and Language (cs.CL)
subject: Information Retrieval (cs.IR)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We show that the frequency of word use is not only determined by the word length \cite{Zipf1935} and the average information content \cite{Piantadosi2011}, but also by its emotional content. We have analyzed three established lexica of affective word usage in English, German, and Spanish, to verify that these lexica have a neutral, unbiased, emotional content. Taking into account the frequency of word usage, we find that words with a positive emotional content are more frequently used. This lends support to Pollyanna hypothesis \cite{Boucher1969} that there should be a positive bias in human expression. We also find that negative words contain more information than positive words, as the informativeness of a word increases uniformly with its valence decrease. Our findings support earlier conjectures about (i) the relation between word frequency and information content, and (ii) the impact of positive emotions on communication and social links.
description: 16 pages, 3 figures, 3 tables
Additional file 3 of Gateway-compatible vectors for functional analysis of proteins in cell type specific manner
Creators: name: Zhang, Liu
name: Zhao, Yang
name: Liang, Haiyan
name: Li, Xugang
name: Gallagher, Kimberly L.
name: Wu, Shuang
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology

description: Additional file 3: Table S1. List of primers used for cloning.
Strong Einstein-Podolsky-Rosen steering with unconditional entangled states
Creators: name: Steinlechner, Sebastian
name: Bauchrowitz, Jöran
name: Eberle, Tobias
name: Schnabel, Roman
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In 1935 Schrödinger introduced the terms entanglement and steering in the context of the famous gedanken experiment discussed by Einstein, Podolsky, and Rosen (EPR). Here, we report on a sixfold increase of the observed EPR-steering effect as quantified by the Reid-criterion. We achieved an unprecedented low conditional variance product of about 0.04 < 1, where 1 is the upper bound below which steering is present. The steering effect was observed on an unconditional two-mode-squeezed entangled state that contained a total vacuum state contribution of less than 8%, including detection imperfections. Together with the achieved high interference contrast between the entangled state and a bright coherent laser field, our state is compatible with efficient applications in high-power laser interferometers and fiber-based networks for entanglement distribution.
description: 5 pages, 3 figures
Additional file 1 of Predictors of academic performance during the covid-19 outbreak: impact of distance education on mental health, social cognition and memory abilities in an Italian university student sample
Creators: name: Giusti, Laura
name: Mammarella, Silvia
name: Salza, Anna
name: Del Vecchio, Sasha
name: Ussorio, Donatella
name: Casacchia, Massimo
name: Roncone, Rita
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Survey instruments and related measures.
Magnetic resonance elastography of prostate cancer
Creators: name: Sahebjavaher, Ramin Sebastian
Publisher: name: University of British Columbia
Year: 2013

description: This work presents new approaches to in-vivo and ex-vivo human prostate cancer imaging using magnetic resonance elastography (MRE) – a method to non-invasively image tissue elasticity using magnetic resonance imaging (MRI). From a clinical perspective, stiffness correlates with underlying tissue disease processes and has been traditionally probed with palpation. Thus, diagnosis based on mechanical properties may have great implications in terms of staging of prostate cancer, monitoring disease progression, treatment planning and post treatment follow up. In MRE, mechanical shear waves generted by an external transducer are imaged using an MRI scanner. From the acquired wave field it is possible to reconstruct mechanical properties such as the elastic modulus based on the wave equation. In this work two MR compatible trans-perineal transducers are developed for imaging of the human prostate on a 3T MR scanner. A new MRI pulse sequence is also developed to acquire the three dimensional wave field induced by these transducers. The methods are validated in quality assurance phantoms and volunteer repeatability studies. The system is used for a patient study and the results are compared to the gold standard (whole-mount histopathology marked with Gleason score). Similarly, a transducer is developed for ex-vivo prostate studies on a 7T MR scanner. After validation, prostate specimens of patients are examined and the results are compared to the Gleason score. The overall conclusion are: (i) trans-perineal excitation is well tolerated by the subjects, (ii) the transducers do not interfere with the MR acquisition, (iii) the three dimensional wave field are successfully captured using the new pulse sequence, (iv) phantom validation studies prove that the methods are in fact repeatable and that the stiffness values match with the manufacturer’s specifications, (v) patient motion and the standing wave pattern degrade the repeatability of the reconstructed images, (vi) the prostate gland stands out in the stiffness and shear strain images, (vii) the central gland and in particular the transition zone are stiffer than the peripheral zone, (viii) cancer could indeed be detected with MRE with an area under the receiver-operator-curve of approximately 0.7, and finally (ix) the chemical fixation process degrades the stiffness contrast.
Additional file 6 of Metabolomics analysis reveals Embden Meyerhof Parnas pathway activation and flavonoids accumulation during dormancy transition in tree peony
Creators: name: Zhang, Tao
name: Yuan, Yanchao
name: Zhan, Yu
name: Cao, Xinzhe
name: Liu, Chunying
name: Zhang, Yuxi
name: Gai, Shupeng
Publisher: name: figshare
Year: 2020
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 6: Figure S1. OPLS-DA score plot of each comparison group.
Most robust and fragile two-qubit entangled states under depolarizing channels
Creators: name: Pang, Chao-Qian
name: Zhang, Fu-Lin
name: Jiang, Yue
name: Liang, Mai-Lin
name: Chen, Jing-Ling
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For a two-qubit system under local depolarizing channels, the most robust and most fragile states are derived for a given concurrence or negativity. For the one-sided channel, the pure states are proved to be the most robust ones, with the aid of the evolution equation for entanglement given by Konrad et al. [Nat. Phys. 4, 99 (2008)]. Based on a generalization of the evolution equation for entanglement, we classify the ansatz states in our investigation by the amount of robustness, and consequently derive the most fragile states. For the two-sided channel, the pure states are the most robust for a fixed concurrence. Under the uniform channel, the most fragile states have the minimal negativity when the concurrence is given in the region [1/2,1]. For a given negativity, the most robust states are the ones with the maximal concurrence, and the most fragile ones are the pure states with minimum of concurrence. When the entanglement approaches zero, the most fragile states under general nonuniform channels tend to the ones in the uniform channel. Influences on robustness by entanglement, degree of mixture, and asymmetry between the two qubits are discussed through numerical calculations. It turns out that the concurrence and negativity are major factors for the robustness. When they are fixed, the impact of the mixedness becomes obvious. In the nonuniform channels, the most fragile states are closely correlated with the asymmetry, while the most robust ones with the degree of mixture.
description: 10 pages, 9 figs. to appear in Quantum Information & Computation (QIC)
Additional file 2 of Predictors of academic performance during the covid-19 outbreak: impact of distance education on mental health, social cognition and memory abilities in an Italian university student sample
Creators: name: Giusti, Laura
name: Mammarella, Silvia
name: Salza, Anna
name: Del Vecchio, Sasha
name: Ussorio, Donatella
name: Casacchia, Massimo
name: Roncone, Rita
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. The scores obtained for each item of our short version of the BDI-II are reported.