cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Breakdown of a perturbed Z_N topological phase
Creators: name: Schulz, M. D.
name: Dusuel, S.
name: Orus, R.
name: Vidal, J.
name: Schmidt, K. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the robustness of a generalized Kitaev's toric code with Z_N degrees of freedom in the presence of local perturbations. For N=2, this model reduces to the conventional toric code in a uniform magnetic field. A quantitative analysis is performed for the perturbed Z_3 toric code by applying a combination of high-order series expansions and variational techniques. We provide strong evidences for first- and second-order phase transitions between topologically-ordered and polarized phases. Most interestingly, our results also indicate the existence of topological multi-critical points in the phase diagram.
description: 27 pages, 10 figures
Symmetric M-Theory Backgrounds
Creators: name: Figueroa-O'Farrill, José
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We classify symmetric backgrounds of eleven-dimensional supergravity up to local isometry. In other words, we classify triples (M,g,F), where (M,g) is an eleven-dimensional lorentzian locally symmetric space and F is an invariant 4-form, satisfying the equations of motion of eleven-dimensional supergravity. The possible (M,g) are given either by (not necessarily nondegenerate) Cahen-Wallach spaces or by products AdS_d x M for 1 < d < 8 and M a not necessarily irreducible riemannian symmetric space of dimension 11-d. In most cases we determine the corresponding F-moduli spaces.
description: 36 pages, 6 figures
A 30-Year Celebration of the “Dagradi-Serio-Iacono Operation”. Systematic Review of Central Pancreatectomy and Meta-Analysis Versus Distal Pancreatectomy
Creators: name: Iacono, Calogero
name: Verlato, Giuseppe
name: Ruzzenente, Andrea
name: Campagnaro, Tommaso
name: Bacchelli, Claudio
name: Valdegamberi, Alessandro
name: Bagante, Fabio
name: Conci, Simone
name: Guglielmi, Alfredo
Publisher: name: JOP. Journal of the Pancreas
Year: 2012
Subjects: Meeting Abstracts; Pancreas

description: Context Central pancreatectomy (CP), first performed by Dagradi and Serio in 1982 and described in 1984, validated and popularized worldwide by Iacono, is a parenchyma-sparing surgical procedure that allows removing benign and/or low grade malignant lesion from the neck and proximal body of pancreas. Objectives The aim of the study was to evaluate, from all published studies, short- and long-term surgical results of CP and to evaluate results of comparative studies versus distal pancreatectomy (DP). Methods All published studies between 1988 and December 2010 were systematically reviewed. Results of comparative studies, comparing CP versus DP, were pooled by standard meta-analytic techniques using the random effects model. Results Ninety-one studies with 1,013 cases of CP were recognized and included in the systematic review. Nine-hundred and eighty-three open resection were performed, 30 laparoscopic, 11 of whom were robotic assisted. Postoperative morbidity rate was 39.54%; pancreatic fistula rate was 29.32%. Endocrine and exocrine pancreatic insufficiency were reported in 4.55% and 8% of patients, respectively. Overall mortality rate was 0.82%. Twelve comparative studies, including 359 patients submitted to CP and 480 to DP, were analyzed for meta-analysis. Surgical operation time, blood loss, length of stay, morbidity and exocrine failure presented a significant heterogeneity across studies; re-operation, endocrine failure and pancreatic fistula did not presented significant heterogeneity. CP had a higher post-operative morbidity, with higher incidence of pancreatic fistula compared to DP. However, the odds ratio for post-operative endocrine insufficiency was 0.27, revealing a statistically significant benefit to CP (P<0.001). The odds ratio for exocrine failure was 0.59, but it was not significant (P=0.082) because of the large heterogeneity among studies. Conclusion Systematic review and meta-analysis confirmed CP as a safe surgical procedure with good long term functional reserve although with a low increasing of morbidity (pancreatic fistula) when compared to DP. The “Dagradi-Serio-Iacono operation” must be considered, with specific indication, not an alternative to DP, but rather a standard surgical procedure.
description: JOP. Journal of the Pancreas, Vol 13, N° 5S (2012): September (Suppl.) - p. 548-650
Separable and non-separable multi-field inflation and large non-Gaussianity
Creators: name: Mazumdar, Anupam
name: Wang, Lingfei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we provide a general framework based on $δN$ formalism to estimate the cosmological observables pertaining to the cosmic microwave background radiation for non-separable potentials, and for generic \emph{end of inflation} boundary conditions. We provide analytical and numerical solutions to the relevant observables by decomposing the cosmological perturbations along the curvature and the isocurvature directions, \emph{instead of adiabatic and entropy directions}. We then study under what conditions large bi-spectrum and tri-spectrum can be generated through phase transition which ends inflation. In an illustrative example, we show that large $f_{NL}\sim {\cal O}(80)$ and $τ_{NL}\sim {\cal O}(20000)$ can be obtained for the case of separable and non-separable inflationary potentials.
description: 21 pages, 6 figures
The spectral flow for Dirac operators on compact planar domains with local boundary conditions
Creators: name: Prokhorova, Marina
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 58J30 (Primary), 58J32 (Secondary)

description: Let $D_t$, $t \in [0,1]$ be an arbitrary 1-parameter family of Dirac type operators on a two-dimensional disk with $m-1$ holes. Suppose that all operators $D_t$ have the same symbol, and that $D_1$ is conjugate to $D_0$ by a scalar gauge transformation. Suppose that all operators $D_t$ are considered with the same locally elliptic boundary condition, given by a vector bundle over the boundary. Our main result is a computation of the spectral flow for such a family of operators. The answer is obtained up to multiplication by an integer constant depending only on the number of the holes in the disk. This constant is calculated explicitly for the case of the annulus ($m=2$).
description: 33 pages, 4 figures; section 9 added
The “Prochronous Metastases” Theory
Creators: name: Zanini, Nicola
name: Lombardi, Raffaele
name: Masetti, Michele
name: Zanini, Mario
name: Jovine, Elio
Publisher: name: JOP. Journal of the Pancreas
Year: 2012
Subjects: Meeting Abstracts; Pancreas

description: Context It is known that metastatic process is an early event in the life of a pancreatic ductal adenocarcinoma (PDAC). As soon as cancer cells (cells which became able to pass the basal lamina) are present in the pancreatic gland, maybe that is the moment since the disease should be considered as systemic. A recent study on mouse models revealed that not only PDAC cells can move through basal lamina, but even pre-cancerous cells (pan-IN cells) could do it. This outstanding report gives rise to new possible explanations of some clinical scenarios not fully understood to this day. Case report We report the case a of 70-year-old man who underwent splenectomy for a solid mass of uncertain origin. Pathology revealed a metastasis from undifferentiated adenocarcinoma, biliopancreatic origin was suspected. Extensive sonography, endoscopy, EUS, conventional and nuclear imaging were carried out. No proofs or clues of the primary cancer were found. However, enlarged lymph nodes were visible in the liver hilum, lesser omentum and interaortocaval region. Explorative laparotomy was performed and a small cancer of the pancreatic tail with nodal and peritoneal metastases was found. Conclusion We theorize that PDAC could first arise in distant organs and only later in the pancreas. If pan-IN cells can pass through the basal lamina and reach systemic blood-stream, they could dedifferentiate in distant organs. Could such pan-IN “metastases” give birth to pancreatic cancer before “pancreatic” pan-IN proceed to PDAC? We already deal with sinchronous and metachronous metastases; what if really exist prochronous metastases?
description: JOP. Journal of the Pancreas, Vol 13, N° 5S (2012): September (Suppl.) - p. 548-650
Synacta Fairmaire 1899
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Synacta

description: Synacta Fairmaire, 1899
[1 species].
Type species Synacta corrugata Fairmaire, 1899, 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 147, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Tamnoserica Brenske 1899
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Tamnoserica

description: Tamnoserica Brenske, 1899c
[3 species].
Type species Emphania mutans Blanchard, 1850, by subsequent designation of Ahrens (2007a).
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 147, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
“I want to be a machine” : how costume design directs and challenges the human in the machine, Hamlet (Ophelia) machine
Creators: name: Ortner, Ines
Publisher: name: University of British Columbia
Year: 2013

description: This report analyzes the principles behind my thesis production of Hamletmachine (Heiner Mueller, 1977) at the University of British Columbia in April 2013, explains the concepts underlying the design and production, documents the stages of development towards production, and describes the challenges and the final results. Hamletmachine was work-shopped over a period of two school terms in 2012/13. The production intended as an exploration of a directorial/design/dramaturgical model in which costume design does not simply fulfill its traditional function of supporting theme, characterization and narrative but rather plays the leading role in determining and shaping these aspects of the theatrical event through the very materiality of, and physical restrictions inherent in, the costumes themselves. My concepts are grounded in the theories and practical work of Bauhaus artist and theatre designer Oskar Schlemmer from the historical European avant-garde, as well as the East German playwright, author, dramaturge and poet Heiner Mueller. At the core of this project was the idea of “Man as Machine”. In the anticipation of a post-apocalyptic age, humans are becoming increasingly machine-like, as evident by the development of the cyborg. For my design and production, this awareness resulted in the application of abstract and geometric design principles as well as LED technologies embedded in the costumes. In addition, my design and production were based on the themes addressed in Hamletmachine, specifically Heiner Mueller’s concerns with the mechanisms of history and myth-making grounded in the “Age of Reason”. I was interested in Mueller’s redefinition of Ophelia as a revolutionary figure and how the costume can reflect this rethinking of the female role in society, politics and the arts. The success of the workshops attests to the costumes affect on the performers’ bodies, together with the movements that were inherent in their shape and function. The conclusion also addresses the challenges of the production, as they materialized in the costumes as well as in the process of the production. In the end the costumes not only reflected the play and its structure, but also shaped the production and projected a new understanding of the theatrical script.
A note on weak amenability for reduced free products of discrete quantum groups
Creators: name: Freslon, Amaury
Publisher: name: arXiv
Year: 2011
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L09, 46L65

description: We prove that the Cowling-Haagerup constant of a reduced free product of weakly amenable discrete quantum groups with Cowling-Haagerup constant equal to 1 is again equal to 1.
description: Shorter version with numbering matching the published one. An extended version is available in my PhD thesis
Geometry and Dynamics of Admissible Metrics in Measure Spaces
Creators: name: Vershik, A.
name: Petrov, F.
name: Zatitskiy, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 28D20, 37A35, 54E35

description: We study a wide class of metrics in a Lebesgue space with a standard measure, the class of so-called admissible metrics. We consider the cone of admissible metrics, introduce a special norm in it, prove compactness criteria, define the "-entropy of a measure space with an admissible metric, etc. These notions and related results are applied to the theory of transformations with invariant measure; namely, we study the asymptotic properties of orbits in the cone of admissible metrics with respect to a given transformation or a group of transformations. The main result of this paper is a new discreteness criterion for the spectrum of an ergodic transformation: we prove that the spectrum is discrete if and only if the "-entropy of the averages of some (and hence any) admissible metric over fragments of its trajectory is uniformly bounded.
description: 37p. Ref.19
Phenomenology of the minimal inflation scenario: inflationary trajectories and particle production
Creators: name: Alvarez-Gaume, Luis
name: Gomez, Cesar
name: Jimenez, Raul
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the phenomenology of the minimal inflation scenario. We concentrate on two aspects: inflationary trajectories and particle production. Our findings can be summarized in two main results: first, that inflationary trayectories that are very flat and provide enough number of e-foldings are natural in the scenario without fine tunning. We present a general formalism to identify attractors in multi-field inflation regardless of trajectories fulfilling the slow-roll conditions. We then explore particle production in the model and show how the inflaton naturally transmutes into a dark matter particle. One interesting feature of our model is that it provides a novel mechanism to generate particles and entropy in the universe: the filling of the Fermi sphere up to a given momentum p_F due to the sea of goldstinos that are an important part of the matter generated after inflation. With this mechanism in hand we predict that the gravitino should have a mass of > 100-1000 TeV. Another interesting feature of our model is that the predicted level of gravity waves is r=0.1 - 0.001, which is in the range of detectability from Planck and upcoming CMB polarization experiments.
description: minor changes to match accepted version to JCAP; conclusions unchanged
A Sufficient Condition for Hanna Neumann Property of Submonoids of a Free Monoid
Creators: name: Singh, Shubh Narayan
name: Krishna, K. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences
subject: 68Q70, 68Q45, 20M35

description: Using automata-theoretic approach, Giambruno and Restivo have investigated on the intersection of two finitely generated submonoids of the free monoid over a finite alphabet. In particular, they have obtained Hanna Neumann property for a special class of submonoids generated by finite prefix sets. This work continues their work and provides a sufficient condition for Hanna Neumann property for the entire class of submonoids generated by finite prefix sets. In this connection, a general rank formula for the submonoids which are accepted by semi-flower automata is also obtained.
Formal Integrability for the Nonautonomous Case of the Inverse Problem of the Calculus of Variations
Creators: name: Constantinescu, Oana
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We address the integrability conditions of the inverse problem of the calculus of variations for time-dependent SODE using the Spencer version of the Cartan-Kähler theorem. We consider a linear partial differential operator $P$ given by the two Helmholtz conditions expressed in terms of semi-basic 1-forms and study its formal integrability. We prove that $P$ is involutive and there is only one obstruction for the formal integrability of this operator. The obstruction is expressed in terms of the curvature tensor $R$ of the induced nonlinear connection. We recover some of the classes of Lagrangian semisprays: flat semisprays, isotropic semisprays and arbitrary semisprays on 2-dimensional manifolds.
Enucleation of Pancreatic Head Tumors Combined With Pre-Operative Wirsung Stenting, Intra-Operative Ultrasounds and Absorbable Fibrin Sealant Patch Application: Experience on 13 Cases
Creators: name: Gavazzi, Francesca
name: Ridolfi, Cristina
name: Angiolini, Maria Rachele
name: Fiore, Barbara
name: De Pascale, Stefano
name: Montorsi, Marco
name: Zerbi, Alessandro
Publisher: name: JOP. Journal of the Pancreas
Year: 2012
Subjects: Meeting Abstracts; Pancreas

description: Context Benign/low malignant tumors or metastasis from renal cancer of the pancreatic head can be treated by enucleation; this procedure is technically demanding and it is often followed by high morbidity rates. Objective To analyze the peri-operative outcome of our series of enucleations for tumors of the pancreatic head. Methods From January 2010 to June 2012 29 out of 149 resected periampullary tumors were cystic neoplasms, 15 were neuroendocrine tumors (NET), 1 was metastasis from renal cancer and 1 was pseudopapillary solid tumor; in 13 of them (28% of 46 patients with pancreatic diseases eligible for atypical resection) an enucleation was performed. Enucleation was contraindicated when the lesion was deeply embedded in gland’s parenchyma involving Wirsung or originating from main pancreatic duct itself (main duct type IPMN), and in case of overt malignant appearance. We analyze the features of patients who underwent enucleation. Endoscopic ultrasound was performed preoperatively in 10 patients. ERCP with Wirsung stenting was realized when the distance between the main pancreatic duct and the lesion was less than 3 mm (4 cases). In patients submitted to stent positioning the mean distance between the lesion and the Wirsung duct was 1.9 mm while in the other group of patients it was 5 mm (P<0.05, t test). Intra-operative US was performed in all patients. At the end an absorbable fibrin sealant patch (Tachosil®) was placed on the area of enucleation. Results The mean diameter of the lesion was 1.9±1.1 cm (range: 1-4.5 cm); histology revealed 2 benign side branch IPMNs, 9 G1 NET, 1 metastasis from renal cancer and 1 pseudopapillary solid tumor. Mean operative time was 209.9±60.3 minutes and mean blood loss was 97.7±63.8 mL. No mortality was observed. Overall morbidity was 46% (including POPF rate of 31%): 4 POPF (2 grade B and 2 grade A). Mean length of hospital stay was 8.5±2.7 days. The reoperation rate was nihil. Readmission regarded only 1 patient. Conclusion Enucleation is a good alternative to pancreaticoduodenectomy in benign/low malignant tumors of the pancreatic head. Pre-operative Wirsung stenting, intra-operative ultrasounds and Tachosil® application appear related to a satisfactory postoperative outcome.
description: JOP. Journal of the Pancreas, Vol 13, N° 5S (2012): September (Suppl.) - p. 548-650
Tool bracing for performance improvement in simulated femoral head-neck osteochondroplasty
Creators: name: Kooyman, Jeremy James Robert
Publisher: name: University of British Columbia
Year: 2013

description: Bracing is defined as a parallel mechanical link between a tool user, the environment, and/or the workpiece that alters the mechanical impedance between the tool and workpiece with the goal of improving task performance. Bracing is used in a variety of settings including robotics/automation and more recently in medicine/dentistry, however it remains relatively understudied in formal ways. This thesis explored whether bracing could be beneficial in a current orthopaedic problem. We selected a candidate orthopaedic procedure based on selection criteria that included three degrees of freedom, and the ability to abstract/simulate the surgical task using phantom tests. Femoral head-neck osteochondroplasty is used to treat a deformity of the anterosuperior femoral head-neck region called cam-type femoroacetabular impingement. During this procedure a surgeon uses a spherical burr to remove the cam lesion and restore the normal contour of the femoral head-neck. The goal of this thesis was to evaluate whether a proposed bracing technique could enable a user to perform a cam resection more accurately and quickly than a currently employed arthroscopic technique. We first performed a pilot study with 4 subjects to examine the impact of bracing on simulated bone milling and found that bracing could reduce errors on the order of 7-14% and procedure length on the order of 30-50% but these findings were limited by a small sample and effect size. Workspace issues with the brace indicated the need for a redesign, which we combined with the creation of a higher fidelity surgical simulation. We showed that the most effective brace design projected a remote center of motion combined with a spring for axial stiffness. This improved brace design was tested using 20 non-surgeons and 5 surgeons. While bracing had no detectable effect on the surgeon population, bracing reduced procedure length and error by 37% and 27% respectively in the non-surgeon population when compared to the unbraced condition. Unfortunately, when compared to the surgical simulation condition, there was no detectable effect of bracing. This finding suggests that an optimal level of bracing may exist but how to experimentally determine this level remains a topic for future study.
Quantum field theoretic approach to neutrino oscillations in matter
Creators: name: Akhmedov, Evgeny Kh.
name: Wilhelm, Alina
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We consider neutrino oscillations in non-uniform matter in a quantum field theoretic (QFT) approach, in which neutrino production, propagation and detection are considered as a single process. We find the conditions under which the oscillation probability can be sensibly defined and demonstrate how the properly normalized oscillation probability can be obtained in the QFT framework. We derive the evolution equation for the oscillation amplitude and discuss the conditions under which it reduces to the standard Schrödinger-like evolution equation. It is shown that, contrary to the common usage, the Schrödinger-like evolution equation is not applicable in certain cases, such as oscillations of neutrinos produced in decays of free pions provided that sterile neutrinos with $Δm^2\gtrsim 1$ eV$^2$ exist.
description: LaTeX, 24 pages + 16 pages of appendices, 1 figure. V2: typos corrected
Significance of tension for gravitating masses in Kaluza-Klein models
Creators: name: Eingorn, Maxim
name: Zhuk, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this letter, we consider the six-dimensional Kaluza-Klein models with spherical compactification of the internal space. Here, we investigate the case of bare gravitating compact objects with the dustlike equation of state $\hat p_0=0$ in the external (our) space and an arbitrary equation of state $\hat p_1=Ω\hat\varepsilon$ in the internal space, where $\hat \varepsilon$ is the energy density of the source. This gravitating mass is spherically symmetric in the external space and uniformly smeared over the internal space. In the weak field approximation, the conformal variations of the internal space volume generate the admixture of the Yukawa potential to the usual Newton's gravitational potential. For sufficiently large Yukawa masses, such admixture is negligible and the metric coefficients of the external spacetime coincide with the corresponding expressions of General Relativity. Then, these models satisfy the classical gravitational tests. However, we show that gravitating masses acquire effective relativistic pressure in the external space. Such pressure contradicts the observations of compact astrophysical objects (e.g., the Sun). The equality $Ω=-1/2$ (i.e. tension) is the only possibility to preserve the dustlike equation of state in the external space. Therefore, in spite of agreement with the gravitational experiments for an arbitrary value of $Ω$, tension ($Ω=-1/2$) plays a crucial role for the considered models.
description: 8 pages, no figures
The complex volume of SL(n,C)-representations of 3-manifolds
Creators: name: Garoufalidis, Stavros
name: Thurston, Dylan P.
name: Zickert, Christian K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57N10, 57M27, 58J28 (primary), 11R70, 19F27, 11G55 (secondary)

description: For a compact 3-manifold M with arbitrary (possibly empty) boundary, we give a parametrization of the set of conjugacy classes of boundary-unipotent representations of the fundamental group of M into SL(n,C). Our parametrization uses Ptolemy coordinates, which are inspired by coordinates on higher Teichmueller spaces due to Fock and Goncharov. We show that a boundary-unipotent representation determines an element in Neumann's extended Bloch group, and use this to obtain an efficient formula for the Cheeger-Chern-Simons invariant, and in particular for the volume. Computations for the census manifolds show that boundary-unipotent representations are abundant, and numerical comparisons with census volumes, suggest that the volume of a representation is an integral linear combination of volumes of hyperbolic 3-manifolds. This is in agreement with a conjecture of Walter Neumann, stating that the Bloch group is generated by hyperbolic manifolds.
description: 44 pages, 11 figures
Graphs associated with the map $x \mapsto x + x^{-1}$ in finite fields of characteristic three
Creators: name: Ugolini, Simone
Publisher: name: arXiv
Year: 2011
Subjects: subject: Number Theory (math.NT)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37P05

description: In this paper we study the structure of the graphs associated with the iterations of the map $x \mapsto x+x^{-1}$ over finite fields of characteristic three.
description: The definitions of the maps $s$ and $\psi$ have been slightly modified in order to simplify the following discussion. 6 pages
Tree indiscernibilities, revisited
Creators: name: Kim, Byunghan
name: Kim, Hyeung-Joon
name: Scow, Lynn
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C45, 05C55, 05C05

description: We give definitions that distinguish between two notions of indiscernibility for a set $\{a_η\mid η\in \W\}$ that saw original use in \cite{sh90}, which we name \textit{$\s$-} and \textit{$\n$-indiscernibility}. Using these definitions and detailed proofs, we prove $\s$- and $\n$-modeling theorems and give applications of these theorems. In particular, we verify a step in the argument that TP is equivalent to TP$_1$ or TP$_2$ that has not seen explication in the literature. In the Appendix, we exposit the proofs of \citep[{App. 2.6, 2.7}]{sh90}, expanding on the details.
description: submitted
Gauge-Invariant Formalism with a Dirac-mode Expansion for Confinement and Chiral Symmetry Breaking
Creators: name: Gongyo, Shinya
name: Iritani, Takumi
name: Suganuma, Hideo
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the eigen-mode of the QCD Dirac operator $\Slash D=γ^μD^μ$, we develop a manifestly gauge-covariant expansion and projection of the QCD operators such as the Wilson loop and the Polyakov loop. With this method, we perform a direct analysis of the correlation between confinement and chiral symmetry breaking in lattice QCD Monte Carlo calculation on $6^4$ at $β$=5.6. Even after removing the low-lying Dirac modes, which are responsible to chiral symmetry breaking, we find that the Wilson loop obeys the area law, and the slope parameter corresponding to the string tension or the confinement force is almost unchanged. We find also that the Polyakov loop remains to be almost zero even without the low-lying Dirac modes, which indicates the $Z_3$-unbroken confinement phase. These results indicate that one-to-one correspondence does not hold for between confinement and chiral symmetry breaking in QCD.
Publishing of working papers during the COVID-19 pandemic: a survey of economics researchers
Creators: name: Fraser, Nicholas
Publisher: name: Zenodo
Year: 2021
Subjects: Economics
Survey
Publishing
Working Papers
COVID-19

description: Presentation given at workshop "The impact of the COVID-19 pandemic on publication behaviour in Economics and Business Studies", organised by ZBW – Leibniz Information Centre for Economics, Kiel, Germany.
Critical and strong-coupling phases in one- and two-bath spin-boson models
Creators: name: Guo, Cheng
name: Weichselbaum, Andreas
name: von Delft, Jan
name: Vojta, Matthias
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: For phase transitions in dissipative quantum impurity models, the existence of a quantum-to-classical correspondence has been discussed extensively. We introduce a variational matrix product state approach involving an optimized boson basis, rendering possible high-accuracy numerical studies across the entire phase diagram. For the sub-ohmic spin-boson model with a power-law bath spectrum $\propto \w^s$, we confirm classical mean-field behavior for $s<1/2$, correcting earlier numerical renormalization-group results. We also provide the first results for an XY-symmetric model of a spin coupled to two competing bosonic baths, where we find a rich phase diagram, including both critical and strong-coupling phases for $s<1$, different from that of classical spin chains. This illustrates that symmetries are decisive for whether or not a quantum-to-classical correspondence exists.
title: Guidet musik- og krops-lytning
title: En ny form for receptiv musikterapi inden for traditionen Guided Imagery and Music (GIM)– i psykodynamisk traumebehandling af patienter med PTSD i voksenpsykiatrien
titleType: Subtitle
Creators: name: Dammeyerm Charlotte
Publisher: name: Musikterapi i Psykiatrien Online, Aalborg Universitet, Aalborg
Year: 2013
Subjects: subject: 615 Pharmacology and therapeutics

description: Med udgangspunkt i kliniske erfaringer fra psykodynamisk musikterapi i psykiatrien, Region Nord, beskriver denne artikel en ny supplerende metode inden for traditionen Guided Imagery and Music (GIM). Grundelementerne i metoden Guidet Musik- og Kropslytning (GMKL) består overordnet af: guidning, lytning til specifikt udvalgt klassisk musik, udtrykt og fortolket gennem krop & bevægelse, med henblik på afklaring, integration og personlig udvikling. I artiklen beskrives, hvordan GMKL med brug af det kropslige element kan bidrage som supplerende behandlingsform til anden traumebehandling i voksenpsykiatrien. Artiklen er overvejende baseret på klinisk materiale fra ét patientforløb i musikterapi, hvorfra eksempler er skildret med casevignetter. I artiklen gennemgås relevant forskningsrelateret og teoretisk baggrundsmateriale.
description: MIPO Musikterapi I Psykiatrien Online, yr. 2013, vol. 8, iss. 1, pg. 4-16; ISSN 2245-3342
Mentaliseringsbaseret behandling og musikterapi
Creators: name: Hannibal, Niels
Publisher: name: Musikterapi i Psykiatrien Online, Aalborg Universitet, Aalborg
Year: 2013
Subjects: subject: 615 Pharmacology and therapeutics

description: Denne artikel behandler spørgsmålet, om mentaliseringsbaseret terapi er en metode der medfører et skift i terapeutisk forholdemåde for analytisk orienterede musikterapeuter i arbejde med patienter med personlighedsforstyrrelse. Artiklen skal ses om en del af den teoretiske integrationer af MBT i musikterapi med denne målgruppe. Artiklen ser på de forskrifter til mentaliseringsfremmende tiltag som Allan, Fonagy og Bateman (2010) beskriver. Artiklens konklusion er dels af MBT’s krav til forholdemåde og interventionsfokus er et skift i forhold til traditionel analytisk orienteret terapi, bl.a. i forhold til fokus på her og nu, og øget fokus på implicit relationel læring, men siger samtidig at musikterapi allerede lever op til og i forvejen anvender disse elementer i musikterapi qua ligheden mellem klinisk improvisation (Wigram 2004) og implicit relationel viden (Stern 2010).
description: MIPO Musikterapi I Psykiatrien Online, yr. 2013, vol. 8, iss. 1, pg. 4-16; ISSN 2245-3342
Hur låter det du har varit med om?
Creators: name: Torell, Hillevi
Publisher: name: Musikterapi i Psykiatrien Online, Aalborg Universitet, Aalborg
Year: 2013
Subjects: subject: 615 Pharmacology and therapeutics

description: Barn och ungdomar som upplevt potentiellt traumatiserande händelser är en betydelsefull grupp att uppmärksamma och satsa på, så att deras hälsa och psykiska växt hamnar i gynnsamma utvecklingsspår. Detta framförallt för deras egen skull, men också för de människor som påverkas av deras liv, nu och i en kommande framtid.
description: MIPO Musikterapi I Psykiatrien Online, yr. 2013, vol. 8, iss. 1, pg. 60-71; ISSN 2245-3342
Noncommutative Bennett and Rosenthal inequalities
Creators: name: Junge, Marius
name: Zeng, Qiang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: In this paper we extend the Bernstein, Prohorov and Bennett inequalities to the noncommutative setting. In addition we provide an improved version of the noncommutative Rosenthal inequality, essentially due to Nagaev, Pinelis and Pinelis, Utev for commutative random variables. We also present new best constants in Rosenthal's inequality. Applying these results to random Fourier projections, we recover and elaborate on fundamental results from compressed sensing, due to Candes, Romberg and Tao.
description: Published in at http://dx.doi.org/10.1214/12-AOP771 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Tails of the endpoint distribution of directed polymers
Creators: name: Quastel, Jeremy
name: Remenik, Daniel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We prove that the random variable $\ct=\argmax_{t\in\rr}\{\aip(t)-t^2\}$ has tails which decay like $e^{-ct^3}$. The distribution of $\ct$ is a universal distribution which governs the rescaled endpoint of directed polymers in 1+1 dimensions for large time or temperature.
description: To appear in Annales de l'Institut Henri Poincar\'e Probabilit\'es et Statistiques (17 pages, 1 figure)
Heavy neutrino searches at the FCC
Creators: name: Suarez, Rebeca Gonzalez
Publisher: name: Zenodo
Year: 2021
Subjects: Neutrinos at Colliders

description: Parallel Contributed Talk at the
 "XIX International Workshop on Neutrino Telescopes"
 on line - 18-26 February, 2021
description: Funded by The Swedish Research Council VR 2017-05092
Input-to-state stability of infinite-dimensional control systems
Creators: name: Dashkovskiy, Sergey
name: Mironchenko, Andrii
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We develop tools for investigation of input-to-state stability (ISS) of infinite-dimensional control systems. We show that for certain classes of admissible inputs the existence of an ISS-Lyapunov function implies the input-to-state stability of a system. Then for the case of systems described by abstract equations in Banach spaces we develop two methods of construction of local and global ISS-Lyapunov functions. We prove a linearization principle that allows a construction of a local ISS-Lyapunov function for a system which linear approximation is ISS. In order to study interconnections of nonlinear infinite-dimensional systems, we generalize the small-gain theorem to the case of infinite-dimensional systems and provide a way to construct an ISS-Lyapunov function for an entire interconnection, if ISS-Lyapunov functions for subsystems are known and the small-gain condition is satisfied. We illustrate the theory on examples of linear and semilinear reaction-diffusion equations.
description: 33 pages
MMusiklytning og indre billeder
Creators: name: Bonde, Lars Ole
name: Pedersen, Inge Nygaard
Publisher: name: Musikterapi i Psykiatrien Online, Aalborg Universitet, Aalborg
Year: 2013
Subjects: subject: 615 Pharmacology and therapeutics

description: Denne artikel er tredje og sidste del af afrapporteringen fra det kliniske pilotprojekt “Musiklytning og indre billeder”, et projekt som blev gennemført i et samarbejde mellem de to forfattere, som begge var musikterapeuter for grupperne i projektet. Første del blev præsenteret af Bonde (2011) i årsskriftet Musikterapi i psykiatrien 6 og omhandlede assessment-delen af projektet. Anden del blev rapporteret af Bonde & Pedersen (2012) i Musikterapi i Psykiatrien Online 7 og omhandlede resultaterne fra pilotprojektet og begrundelse for, at en sådan metode kan reducere ambulante psykiatriske patienters sociale angst, styrke deres identitetsfølelse, og selvværd og deres evne til at opleve ro og fokuseret opmærksomhed. I denne tredje del præsenteres et detaljeret case-studie omhandlende en enkelt af deltagerne, som deltog i to gruppeforløb i forlængelse af hinanden. Der fokuseres på delprocesser undervejs i casen, og der anvendes kliniske og eksistentielle teorier og forståelsesmodeller udviklet på baggrund af teorier om relationel behandling i psykiatrien (Thorgaard, 2006) og teorier om dimensioner i den menneskelige eksistens (v.Deurzen, 1999). Forfatterne udvikler på baggrund heraf en klinisk teori vedrørende ”De tre værens- og kommunikationsrum”. Denne anvendes til at identificere udviklingstrin i klientens proces gennem forløbet.
description: MIPO Musikterapi I Psykiatrien Online, yr. 2013, vol. 8, iss. 1, pg. 17-41; ISSN 2245-3342
Nonlocally related partial differential equation systems, the nonclassical method and applications
Creators: name: Yang, Zhengzheng
Publisher: name: University of British Columbia
Year: 2013

description: Symmetry methods are important in the analysis of differential equation (DE) systems. In this thesis, we focus on two significant topics in symmetry analysis: nonlocally related partial differential equation (PDE) systems and the application of the nonclassical method. In particular, we introduce a new systematic symmetry-based method for constructing nonlocally related PDE systems (inverse potential systems). It is shown that each point symmetry of a given PDE system systematically yields a nonlocally related PDE system. Examples include applications to nonlinear reaction-diffusion equations, nonlinear diffusion equations and nonlinear wave equations. Moreover, it turns out that from these example PDEs, one can obtain nonlocal symmetries (including some previously unknown nonlocal symmetries) from some corresponding constructed inverse potential systems. In addition, we present new results on the correspondence between two potential systems arising from two nontrivial and linearly independent conservation laws (CLs) and the relationships between local symmetries of a PDE system and those of its potential systems. We apply the nonclassical method to obtain new exact solutions of the nonlinear Kompaneets (NLK) equation u_{t}=x^{-²}(x^{⁴}(\alpha u_{x}+\beta u+\gamma u^{ ²}))_{x}, where \alpha>0, \beta\geq0 and \gamma>0 are arbitrary constants. New time-dependent exact solutions for the NLK equation u_{t}=x^{-²}(x^{⁴}(\alpha u_{x}+\gamma u^{²}))_{x}, for arbitrary constants \alpha>0, \gamma>0 are obtained. Each of these solutions is expressed in terms of elementary functions. We also consider the behaviours of these new solutions for initial conditions of physical interest. More specifically, three of these families of solutions exhibit quiescent behaviour and the other two families of solutions exhibit blow-up behaviour in finite time. Consequently, it turns out that the corresponding nontrivial stationary solutions are unstable.
Large theta_13 from a model with broken L_e-L_mu-L_tau symmetry
Creators: name: Meloni, Davide
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent data in the neutrino sector point towards a relatively large value of the reactor angle, incompatible with a vanishing theta_ 13 at about 3 sigma. In order to explain such a result, we propose a SUSY model based on the broken L_e-L_mu-L_tau symmetry, where large deviations from the symmetric limit theta_12 = pi/4, tan(theta_23) \sim O(1) and theta_13 = 0 mainly come from the charged lepton sector. We show that a description of all neutrino data is possible if the charged lepton mass matrix has a special pattern of complex matrix elements.
description: 9 pages, 2 figures. v2: comments and references added, as published in JHEP
Tephraeoserica Brenske 1900
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Tephraeoserica

description: Tephraeoserica Brenske, 1900b
[1 species].
Type species Tephraeoserica hauseri Brenske, 1901, 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 147, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Pana Vynnyčenka dozvillja 1918-oho roku oder: Die Kunst der Harmlosigkeit (Panna Mara)
Creators: name: Sproede, Alfred
Publisher: name: Studi Slavistici
Year: 2019

description: 1918 was a fateful year for Ukrainian nation builders, but also for Socialist Vynnyčenko, who since mid-1917 had tried to accredit the autonomy statute of the Central Rada through laborious – and finally abortive – negotiations with the Russian and Bolshevik governments. The comedy Panna Mara(Miss Mara) that Vynnyčenko jotted down in early 1918 in order to kill the boredom of one of his many railway trips between Kiev and Moscow, later appeared to him as an “inane little play” – a judgement which the present paper intends to challenge. Starting off as a satire of bourgeois life under revolutionary rule, Panna Marasoon quits the satirical mode. The scenic representation of rural Ukraine resulting from this shift is not downright idyllic; but the communication between the dramatis personae(and, especially, the encounter between owners and have-nots) shuns away from class struggle so definitely as to remind the spectator of a family concerned with solidarity only: in the world of Panna MaraUkraine is fundamentally reconciled with herself. The generic standards of comedy – the final restoration of harmony between people previously engaged in a harmless, amusing confrontation – coincide with a political program that Vynnyčenko, later in his life, designated as Concordism. This paper tries to show that Panna Maradiffers as much from the ingenuous solutions of this treatise as it avoids the bitter conclusions of Vynnyčenko’s book The Nation’s Renascence; the comedy addresses both the opening-up of modernity and the fraternal effort towards the nation. The play’s message, thus, is relevant to the literary scholar, but also to a politically enlightened public. The question of Ukrainian independence, controversial, nay, utopian in 1918, has found an unambiguous answer since the country, in the run-up to 2018, claimed an ultimate “farewell to the Empire”. Recent years, true, have shown that this parting could not be achieved like a short distance run, but it is clearly engaged. No one interested in the early moments of the ongoing ‘farewell’ will ignore Panna Mara– however “inane” the author himself may have considered his play.
description: Studi Slavistici, Studi Slavistici XV, 2018, 2