cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fault Tolerant Boolean Satisfiability
Creators: name: Roy, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: A delta-model is a satisfying assignment of a Boolean formula for which any small alteration, such as a single bit flip, can be repaired by flips to some small number of other bits, yielding a new satisfying assignment. These satisfying assignments represent robust solutions to optimization problems (e.g., scheduling) where it is possible to recover from unforeseen events (e.g., a resource becoming unavailable). The concept of delta-models was introduced by Ginsberg, Parkes and Roy (AAAI 1998), where it was proved that finding delta-models for general Boolean formulas is NP-complete. In this paper, we extend that result by studying the complexity of finding delta-models for classes of Boolean formulas which are known to have polynomial time satisfiability solvers. In particular, we examine 2-SAT, Horn-SAT, Affine-SAT, dual-Horn-SAT, 0-valid and 1-valid SAT. We see a wide variation in the complexity of finding delta-models, e.g., while 2-SAT and Affine-SAT have polynomial time tests for delta-models, testing whether a Horn-SAT formula has one is NP-complete.
Pottery, Differentiation, Integration, and Politics: Ceramic Consumption and Manufacture in Naachtun during the Preclassic and Early Classic Periods
Creators: name: Patiño-Contreras, Alejandro
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Archaeology
subject: Ceramics
subject: Maya culture
subject: Economics
subject: Political Economy
subject: Manufacture
subject: Consumption
subject: Naachtun
subject: Guatemala
subject: Peten

description: My research evaluates to what extent transformations in regional networks of socio-economic interaction in the Maya lowlands triggered innovation in ceramic manufacture and consumption in Naachtun between the Late Preclassic and the Early Classic. Comparisons between the ceramic assemblages of the Kuts’ ceramic complex (Late Preclassic) and the Balam ceramic complex (Early Classic) of Naachtun and those documented in other sites in the Maya lowlands indicates that innovation peaked during times when individual socio-economic networks in the lowlands were poorly interconnected, as attested by sharp differences between the assemblages of Naachtun and those reported for other sites. In contrast, more steady and widespread forms of ceramic manufacture and consumption are attested when local and systems of social and economic interaction in the lowlands were tightly associated under the aegis of paramount centers such as El Mirador and Tikal
Optimization of Demand-Responsive Transit Systems Using Zonal Strategy
Creators: name: Wang, Lin
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Sociology--Transportation
subject: Demand responsive transit
subject: optimization
subject: zone design

description: In this thesis, two mathematical models were developed and applied to optimize demand-responsive transit systems using zonal strategies. Demand-responsive transit systems provide services between a residential area and a terminal. The first model considers a scenario where the terminal is located outside the service area, which optimizes the area of zones and bus capacity by minimizing the costs occurring within the entire service area; while the second model designs the transit system with its terminal sitting within the service area by minimizing the costs generated in service zones separately. Case studies for the application of both models were conducted for a presumptive demand-responsive transit system operating in northwest Calgary, showing that the models can successfully assist in designing demand-responsive transit systems. Furthermore, sensitivity analysis was conducted to identify the sensitivity of the model output to each model parameter.
From Bolzano-Weierstraß to Arzelà-Ascoli
Creators: name: Kreuzer, Alexander P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03F60 (Primary) 03D80, 03B30 (Secondary)

description: We show how one can obtain solutions to the Arzelà-Ascoli theorem using suitable applications of the Bolzano-Weierstraß principle. With this, we can apply the results from \cite{aK} and obtain a classification of the strength of instances of the Arzelà-Ascoli theorem and a variant of it. Let AA be the statement that each equicontinuous sequence of functions f_n: [0,1] --> [0,1] contains a subsequence that converges uniformly with the rate 2^-k and let AA_weak be the statement that each such sequence contains a subsequence which converges uniformly but possibly without any rate. We show that AA is instance-wise equivalent over RCA_0 to the Bolzano-Weierstraß principle BW and that AA_weak is instance-wise equivalent over WKL_0 to BW_weak, and thus to the strong cohesive principle StCOH. Moreover, we show that over RCA_0 the principles AA_weak, BW_weak + WKL and StCOH + WKL are equivalent.
Absorbing angles, Steiner minimal trees, and antipodality
Creators: name: Martini, Horst
name: Swanepoel, Konrad J.
name: de Wet, P. Oloff
Publisher: name: arXiv
Year: 2011
Subjects: subject: Metric Geometry (math.MG)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46B20 (Primary). 05C05, 49Q10, 52A21 (Secondary)

description: We give a new proof that a star $\{op_i:i=1,...,k\}$ in a normed plane is a Steiner minimal tree of its vertices $\{o,p_1,...,p_k\}$ if and only if all angles formed by the edges at o are absorbing [Swanepoel, Networks \textbf{36} (2000), 104--113]. The proof is more conceptual and simpler than the original one. We also find a new sufficient condition for higher-dimensional normed spaces to share this characterization. In particular, a star $\{op_i: i=1,...,k\}$ in any CL-space is a Steiner minimal tree of its vertices $\{o,p_1,...,p_k\}$ if and only if all angles are absorbing, which in turn holds if and only if all distances between the normalizations $\frac{1}{\|p_i\|}p_i$ equal 2. CL-spaces include the mixed $\ell_1$ and $\ell_\infty$ sum of finitely many copies of $R^1$.
description: 7 pages, 4 figures. An old paper already published in 2009. This is a preprint version
The Contact Number Problem in Two and Three Dimensions
Creators: name: Foerster, Melanie
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: contact number
subject: packings
subject: totally separable packings
subject: Erdos-type distance problem
subject: sphere packings
subject: kissing number

description: Given a packing of balls in two or three dimensions we want to maximize the number of contacts in the packing. This is referred to as the contact number problem. A packing of balls is totally separable if every two balls can be separated by a hyperplane that is disjoint from the interior of each ball. In this thesis we study the contact number problem for packings of congruent and incongruent balls in two and three dimensions, and we consider the totally separable version of each problem.
CESSDA ERIC: Ein paneuropäisches Netzwerk sozialwissenschaftlicher Datenarchive
Creators: name: Netscher, Sebastian
Publisher: name: Zenodo
Year: 2020
Subjects: CESSDA
ERIC
Data Archive
RDM

description: The presentation was given as part of the networking meeting Research Data Management Reloaded: Open Data and the Future of Research Data Management in the Social Sciences and Humanities that targeted research data management officers of universities, academic libraries and research institutes in German-speaking countries. The meeting involved a review of Open Data requirements and related infrastructures, e.g. in terms of best practice guidelines or data repositories, as well as of resources to assist researchers in processing Open Data, such as the FOSTER Plus Online Toolkit or the CESSDA Data Management Expert Guide.The meeting was part of the FOSTER Plus Project (Facilitate Open Science Training For European Research), funded by the EU (grant numbers 612425 and 741839). It took place on April 24th and 25th, 2019, at GESIS – Leibniz-Institute for the Social Sciences in Cologne, Germany. The course’s language was German. It was supported by CESSDA Training, being a follow-up event of the CESSDA’s Train- the-Trainers workshop in Ljubljana in April 2018.

 Sebastian Netscher talked about the Consortium of European Social Science Data Archives (CESSDA ERIC) which serves as an example of an international, disciple-specific network of data archives, bringing together experts in research data management across Europe. The workshop consisted of several presentations: Introduction “Open Science und FAIR Data” http://doi.org/10.5281/zenodo.3925299 Das FOSTER Toolkit http://doi.org/10.5281/zenodo.3925327 CESSDA Data Management Expert Guide: Forschungsdatenmanagement Training Tool https://doi.org/10.5281/zenodo.3964385 Was bietet das GESIS Datenarchiv an? http://doi.org/10.5281/zenodo.3925380 Gemeinsam statt einsam: Beispiele für ein vernetztes Forschungsdatenmanagement http://doi.org/10.5281/zenodo.3925390 Hessische Forschungsdateninfrastruktur HeFDI- FDM als Landesinitiative http://doi.org/10.5281/zenodo.3925395 Verbund Forschungsdaten Bildung http://doi.org/10.5281/zenodo.3925399 CESSDA ERIC: Ein paneuropäisches Netzwerk sozialwissenschaftlicher Datenarchive http://doi.org/10.5281/zenodo.3925409
Symmetries of the Continuous and Discrete Krichever-Novikov Equation
Creators: name: Levi, Decio
name: Winternitz, Pavel
name: Yamilov, Ravil I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A symmetry classification is performed for a class of differential-difference equations depending on 9 parameters. A 6-parameter subclass of these equations is an integrable discretization of the Krichever-Novikov equation. The dimension $n$ of the Lie point symmetry algebra satisfies $1 \le n \le 5$. The highest dimensions, namely $n=5$ and $n=4$ occur only in the integrable cases.
The French Way of Building in Rome: S. Agostino and SS. Trinità dei Monti
Creators: name: Günther, Hubertus
Publisher: name: Opus Incertum
Year: 2020

description: In Renaissance Rome several churches were built which deliberately adopted a German or French architectural style and which therefore shed interesting light on the tension between the Gothic tradition and the new all’antica manner. This article first discusses the examples of S. Maria dell’Anima and S. Agostino to illuminate this phenomenon, and then focuses on the SS. Trinità dei Monti, which in 1520-1521 was explicitly described as having been “made in the French manner”. Here it is argued that this qualification referred not only to the fact that the church had been built using stones imported especially from France, but also, and more specifically, to its Gothic parts, most notably the choir and the vault (including a star vault similar to that of the Cathedral of Amiens), which here were combined in a striking manner with the all’antica articulation of the lower walls of the nave.
description: Opus Incertum, Vol. 6 (2020)
title: The Western Black Sea Waves 1980-2020- Study Based on ERA5
Creators: name: Galabov, Vasko
Publisher: name: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 302-310
Year: 2020
Subjects: subject: FOS: Earth and related environmental sciences

description: The study presents a reconstruction of the Western Black Sea wave climate based on a numerical hindcast using the SWAN wave model and ERA5 input data. While there are many wave hindcasts reconstructing the Black Sea wave climate, based on various atmospheric reanalysis projects, the present work is the first based on the state of art ERA5 reanalysis. We focus on the storminess affecting the Bulgarian coast. The storminess in the recent decade (2010-2019) was found to be the highest compared to the previous 3 decades covered by the reanalysis (while the previous 2000-2009 is with the lowest), but the trends in the storm proxies used in the study are not statistically significant. This confirms the conclusions of other studies that the wave climate of the Western Black Sea is steady.
description: Proceeding of 1st International Conference on Environmental Protection and Disaster RISKs, 2020, p. 302-310
CESSDA Data Management Expert Guide: Forschungsdatenmanagement Training Tool
Creators: name: Netscher, Sebastian
Publisher: name: Zenodo
Year: 2020
Subjects: DMEG
CESSDA
Research Data Management

description: The presentation was given as part of the networking meeting Research Data Management Reloaded: Open Data and the Future of Research Data Management in the Social Sciences and Humanities that targeted research data management officers of universities, academic libraries and research institutes in German-speaking countries. The meeting involved a review of Open Data requirements and related infrastructures, e.g. in terms of best practice guidelines or data repositories, as well as of resources to assist researchers in processing Open Data, such as the FOSTER Plus Online Toolkit or the CESSDA Data Management Expert Guide.The meeting was part of the FOSTER Plus Project (Facilitate Open Science Training For European Research), funded by the EU (grant numbers 612425 and 741839). It took place on April 24th and 25th, 2019, at GESIS – Leibniz-Institute for the Social Sciences in Cologne, Germany. The course’s language was German. It was supported by CESSDA Training, being a follow-up event of the CESSDA’s Train- the-Trainers workshop in Ljubljana in April 2018.

 The major focus of this content driven session was on resources to do good research data management as well as to train and consult (young) researchers in doing so. In this context, Sebastian Netscher introduced the CESSDA Data Management Expert Guide as core sources to learn about research data management. The workshop consisted of several presentations: Introduction “Open Science und FAIR Data” http://doi.org/10.5281/zenodo.3925299 Das FOSTER Toolkit http://doi.org/10.5281/zenodo.3925327 CESSDA Data Management Expert Guide, Forschungsdatenmanagement Training Tool https://doi.org/10.5281/zenodo.3964385 Was bietet das GESIS Datenarchiv an? http://doi.org/10.5281/zenodo.3925380 Gemeinsam statt einsam, Beispiele für ein vernetztes Forschungsdatenmanagement http://doi.org/10.5281/zenodo.3925390 Hessische Forschungsdateninfrastruktur HeFDI- FDM als Landesinitiative http://doi.org/10.5281/zenodo.3925395 Verbund Forschungsdaten Bildung http://doi.org/10.5281/zenodo.3925399 CESSDA ERIC, Ein paneuropäisches Netzwerk sozialwissenschaftlicher Datenarchive http://doi.org/10.5281/zenodo.3925409
Dynamical analysis and constraints for the HD 196885 system
Creators: name: Giuppone, C. A.
name: Morais, M. H. M.
name: Boué, G.
name: Correia, A. C. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The HD\,196885 system is composed of a binary star and a planet orbiting the primary. The orbit of the binary is fully constrained by astrometry, but for the planet the inclination with respect to the plane of the sky and the longitude of the node are unknown. Here we perform a full analysis of the HD\,196885 system by exploring the two free parameters of the planet and choosing different sets of angular variables. We find that the most likely configurations for the planet is either nearly coplanar orbits (prograde and retrograde), or highly inclined orbits near the Lidov-Kozai equilibrium points, i = 44^{\circ} or i = 137^{\circ} . Among coplanar orbits, the retrograde ones appear to be less chaotic, while for the orbits near the Lidov-Kozai equilibria, those around ω= 270^{\circ} are more reliable, where ω_k is the argument of pericenter of the planet's orbit with respect to the binary's orbit. From the observer's point of view (plane of the sky) stable areas are restricted to (I1, Ω_1) \sim (65^{\circ}, 80^{\circ}), (65^{\circ},260^{\circ}), (115^{\circ},80^{\circ}), and (115^{\circ},260^{\circ}), where I1 is the inclination of the planet and Ω_1 is the longitude of ascending node.
description: 10 pages, 7 figures. A&A Accepted
Postsynaptic Mechanisms of Trophic Factor-Induced Excitatory Synapse Formation in Lymnaea stagnalis
Creators: name: Flynn, Nichole
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Biology--Cell
subject: Biology--Molecular
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: acetylcholine
subject: nicotinic
subject: Synaptogenesis
subject: Lymnaea
subject: MEN1
subject: Menin
subject: Src
subject: LPeD1
subject: VD4
subject: MAPK
subject: ERK
subject: postsynaptic

description: Specialized junctions known as synapses, allow neurons to integrate into the functional networks that underlie behaviour (Colon-Ramos, 2009). However, the precise cellular and molecular mechanisms underlying the formation of synapses in the central nervous (CNS) remain largely unknown. In this thesis, I take advantage of the large and individually identifiable neurons of the mollusc Lymnaea stagnalis to study chemical synaptogenesis. In Part One, I present the first direct evidence that activation of the MAPK/ERK cascade is required for the expression of excitatory nicotinic acetylcholine receptors (nAChRs). I further demonstrate that activation of MAPK/ERK by growth factors, may lead to the expression of the transcription factor, menin, a tumor suppressor encoded by the multiple endocrine neoplasia type I (MEN1) gene. I have discovered a novel role for menin, by demonstrating that it is sufficient to induce the expression of excitatory nAChRs in the postsynaptic neuron, left pedal dorsal 1 (LPeD1). In Part Two of my thesis, I explore a novel role for Src family kinases (SFKs) in the CNS, where they appear to be required for the clustering of nAChRs at the synaptic contact site between the presynaptic cell, visceral dorsal 4 (VD4), and postsynaptic cell, LPeD1. While SFKs are known to play a role in the stabilisation of clusters of nAChRs at the neuromuscular junction (Sadasivam et al., 2005), this is the first time that such a phenomenon has been demonstrated in the CNS. While these findings have increased our knowledge of synaptogenesis in Lymnaea, there is potential to extend these discoveries to vertebrate systems as well, due to the fact that there are many synaptic features that have been conserved across evolution (Sheng and Kim, 2011; Chia et al., 2013). While little is known about the mechanisms governing the expression and localisation of nAChRs (Rosenberg et al., 2002; Gaimarri et al., 2007), it is understood that cholinergic systems have been linked to Alzheimer’s disease, as well as certain forms of epilepsy and schizophrenia (Rosenberg et al., 2002). As such, the discoveries I have made regarding the expression and localisation of nAChRs may eventually guide us towards a better understanding of cholinergic-related synaptopathies in the brain.
Francesco di Giorgio on Mechanics: A Quattrocento Lesson on the Transmission of Knowledge
Creators: name: Wolf, Sophie Elaine
Publisher: name: Opus Incertum
Year: 2020

description: This article discusses the illustrations and descriptions of machines in the two main theoretical writings of Francesco di Giorgio, dating from the 1480s and 1490s, respectively. First, the singular characteristics of the two writings are highlighted, enabling us to characterize the earlier work as a “handbook” and the later one as a “treatise”. Then a small selection of machines is examined, with special regard for the use of technical terminology in the volgare text and for the representational methods of the individual drawings. This offers new insights into Francesco di Giorgio’s approach in representing three-dimensional machines in drawings and underscores his eminent role among Quattrocento engineers. The article further contributes to our understanding of Quattrocento architectural theory by offering English translations of all the volgare passages quoted.
description: Opus Incertum, Vol. 6 (2020)
Negative parity nonstrange baryons in large $N_c$ QCD: quark excitation versus meson-nucleon scattering
Creators: name: Matagne, N.
name: Stancu, Fl.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the two complementary pictures of large $N_c$ baryons - the single-quark orbital excitation about a symmetric core and the meson-nucleon resonance -- are compatible for $\ell$ = 3 SU(4) baryons. The proof is based on a simple Hamiltonian including operators up to order $\mathcal{O}(N^0_c)$ used previously in the literature for $\ell$ = 1.
description: 7 pages, based on a talk given by Fl. Stancu at the Bled Workshop 2011 on "Understanding Hadronic Spectra"; proceedings edited by B.Golli, M.Rosina, S.Sirca
Interaction of the NuA4 Complex and Chromatin Modifications with the DNA Damage Tolerance Pathway
Creators: name: Renaud-Young, Margaret
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Biology--Molecular
subject: DNA Damage Tolerance
subject: NuA4
subject: chromatin modification

description: Genomic instability can arise from the failure to repair or replicate through damaged DNA. The NuA4 histone acetyltransferase complex has been shown to function through chromatin modifications that facilitate DNA transcription and damage repair. This body of work characterizes a novel function for the NuA4 complex in promoting the DNA damage tolerance (DDT) process known as translesion synthesis (TLS). DDT is functional during S and G2 phases of the cell cycle, to allow the DNA replication machinery to bypass damaged regions. This mechanism can proceed via the "error free" template switch pathway, or by an error prone translesion synthesis polymerase. Using the model organism Saccharomyces cerevisiae, I performed genetic analyses with mutants of the NuA4 histone acetyltransferase complex and representative genes of the DDT pathway. NuA4 mutants are synergistically sensitive to the alkylating drug MMS when combined with a mutant of the EF pathway. Consistent with this observation, this mutant had a defect in replication recovery similar to when both TLS and error free branches of the pathway are lost. Lastly, the defect did not arise from aberrant transcription during DNA damage but from a failure to sufficiently modify chromatin targets (H4 and H2A.Z) when challenged with damage. Subsequent work characterizing genetic interactions with DDT has identified the INO80 complex as also having a role in error prone DDT, suggesting that factors that regulate the incorporation and removal of the histone variant H2A.Z, function together to provide a supportive chromatin environment for TLS polymerases to bypass damaged based in late S to G2 phases of the cell cycle.
Theognete striatifemur Anderson 2010, new species
Creators: name: Anderson, Robert S.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Theognete
Theognete striatifemur

description: 4. Theognete striatifemur Anderson, new species (Figures 3, 31, 37, 43) Diagnosis. Size. Length, male, 3.34–3.68mm; female, 3.54–3.99mm. Width, male, 2.14–2.30mm; female, 2.14–2.47mm. Cuticle black. Pronotum with recurved scales arranged in two oblique clusters per side, each situated on low lateral tubercle, tubercles separated by impressed sulcus which is narrowed and extended ventrally down flanks to base of coxa. Elytra with slight swelling on base of interval 3, with vestiture of scattered recurved to suberect, simple scales. Femora all distally with distinct, deep, longitudinal striations. Aedeagus as in Fig. 37. Geographical distribution. México (Tamaulipas). Natural history. Collected from berlese extractions of cloud and oak forest leaf litter at elevations of 1000–1225m. Derivation of specific name. Noun in apposition; named from the Latin stria and femur, in reference to the characteristic striations on the femora. Material examined. 8♂, 9♀♀ (CMNC, CWOB, UNAM). Holotype ♂ (CMNC): MÉXICO: Tampaulipas. 1000m. nr. Gómez Farías, 7.VIII.83, S&J Peck, cloud forest, litter / HOLOTYPE ♂ Theognete striatifemur sp. nov. R.S. Anderson. Aedeagus extracted. Paratypes: MÉXICO. Tamaulipas. Rancho del Cielo (near Gómez Farías), 4000', 6.VI.1983, R. Anderson, cloud forest litter (4♀♀ CMNC). Gómez Farías, 1000m, 7.VIII.1983, S. & J. Peck, cloud forest litter (4♂, 2♀♀ CMNC, CWOB, UNAM). Altas Cimas, 1000m, 16.III.1989, P. Kovarik & R. Jones, berlese litter oak forest (1♀♀ CMNC). Municipio Gómez Farías, Rancho del Cielo, along road, 1180m, 18.VII.2006, 23º05.657 N, 99º12.191 W, R.S. Anderson, mixed hardwood (Magnolia) forest litter, 2006–008 (1♀ CMNC). Municipio Gómez Farías, Rancho del Cielo, along road, 1050–1150m, 18.VII.2006, 23º05.657 N, 99º12.191 W, R.S. Anderson, mixed hardwood forest litter, 2006– 006 (3♂ CMNC). Municipio Gómez Farías, Rancho del Cielo, along road, 1180m, 18.VII.2006, 23º05.657 N, 99º12.191 W, J.L. Cozar, mixed hardwood forest litter (1♀ CMNC). Chorological relationships. Sympatric with T. echinata; possibly parapatric with T. kovariki.
description: Published as part of Anderson, Robert S., 2010, A taxonomic monograph of the Middle American leaf-litter inhabiting weevil genus Theognete Champion (Coleoptera: Curculionidae; Molytinae; Lymantini) 2458, pp. 1-127 in Zootaxa 2458 (1) on pages 17-18, DOI: 10.11646/zootaxa.2458.1.1, http://zenodo.org/record/5316658
“Ancora nel fare s’adatteranno meglio che con parole non si può dire”: alcune considerazioni sui passaggi tecnico-costruttivi nell’architettonico libro di Filarete
Creators: name: Cardamone, Caterina
Publisher: name: Opus Incertum
Year: 2020

description: This contribution focuses on the many passages in Filarete’s treatise that deal with technical issues. “Ridiculous and silly”, as Giorgio Vasari put it, Filarete’s architettonico libro (written between the late 1450s and 1466; first partially printed in 1890) has only recently been read as a source for Quattrocento building practice. In the following pages, some common elements in Filarete’s passages that deal with building techniques are highlighted. In general, these passages seem to be of relevance for the literary construction and the dialogue; they consistently evince an empirical attitude, express results of direct observation, and convey coherent reflections on the instruments of the architect and on the meaning of writing. By no means a definitive assessment, this contribution raises some historiographical questions about the link between the writing of architectural treatises and building culture in the early modern period.
description: Opus Incertum, Vol. 6 (2020)
The role of BIRC6, a member of the inhibitor of apoptosis protein (IAP) family, in the survival of human prostate cancer cells
Creators: name: Low, Christopher Gah-Mun
Publisher: name: University of British Columbia
Year: 2011

description: Prostate cancer is the most commonly diagnosed cancer and third leading cause of cancer deaths in Canadian men. Prostate cancers typically begin as androgen-dependent tumours susceptible to growth arrest/apoptosis induced by ablation of androgens. Although initially effective, androgen ablation frequently leads to the development of castration-resistant (androgen-independent) prostate cancer, which is generally also resistant to other available treatments. Development of castration-resistant prostate cancer is characteristically associated with marked increases in resistance to apoptosis. BIRC6 is a member of the Inhibitors of Apoptosis Protein (IAP) family which protects a variety of cancer cell lines from apoptosis. In the present study, we have investigated whether BIRC6 plays a role in prostate cancer and could potentially be useful as a novel therapeutic target. Analysis of a variety of human prostate cancer cell lines and clinical specimens for BIRC6 protein expression, using Western blot and immunohistochemical analyses, respectively, showed that BIRC6 protein is markedly expressed by the prostate cancer cell lines and by clinical cancer specimens, as distinct from benign prostate cells/tissue. In addition, analysis of the clinical specimens showed that elevated BIRC6 protein expression was found to be particularly associated with cancers of Gleason score 6-8 and with the development of castration-resistant disease. Specific, siRNA-induced reduction of BIRC6 expression in LNCaP cells led to a marked reduction in cell proliferation, associated with an increase in apoptosis markers and a decrease in autophagosome markers, indicating that BIRC6 plays a major protective role in the proliferation of LNCaP cells by inhibiting apoptosis and perhaps by enhancing autophagy. Taken together, the data suggest an important role for BIRC6 in prostate cancer growth and progression, particularly, in the development of treatment resistance. In conclusion, this study indicates - for the first time - that the BIRC6 gene and its product are potentially valuable targets for therapy of human prostate cancers. BIRC6-targeting drugs may be especially useful for sensitization of cancer cells in combination therapy.
Relationship Between Facies and Fracture Characteristics, Cardium Formation, Western Alberta, Canada
Creators: name: Hill, Daniel Whitney
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Cardium
subject: Fractures

description: The Cardium Formation of the Western Canada Sedimentary Basin is commonly treated as a single mechanical unit for geological modeling and well design. Variable well completion and production results in horizontal multi-stage hydraulically fractured wells indicate a greater degree of mechanical complexity exists in the formation. Fracture characterization studies from four outcrop locations supplemented by hardness testing from two cores and well completion data from 14 horizontal multi-stage hydraulically fractured wells reveal three unique mechanical facies in the Cardium reservoir and reservoir analogues studied. Mechanical Facies (MF) 2; intensely bioturbated muddy sandstone, MF 3; thinly interbedded sandstone and mudstone, and MF 4; massive sandstone, are distinguished by their unique mechanical responses to natural and induced stresses observed in facies unique fracture intensities, heights, hardnesses, breakdown pressures and average pumping pressures. These MFs are largely defined by their rock fabrics, which exhibit stronger control on hydraulic fracture treatment than composition.
Energy Efficient Service Delivery in Clouds in Compliance with the Kyoto Protocol
Creators: name: Lucanin, Drazen
name: Maurer, Michael
name: Mastelic, Toni
name: Brandic, Ivona
Publisher: name: arXiv
Year: 2012
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Cloud computing is revolutionizing the ICT landscape by providing scalable and efficient computing resources on demand. The ICT industry - especially data centers, are responsible for considerable amounts of CO2 emissions and will very soon be faced with legislative restrictions, such as the Kyoto protocol, defining caps at different organizational levels (country, industry branch etc.) A lot has been done around energy efficient data centers, yet there is very little work done in defining flexible models considering CO2. In this paper we present a first attempt of modeling data centers in compliance with the Kyoto protocol. We discuss a novel approach for trading credits for emission reductions across data centers to comply with their constraints. CO2 caps can be integrated with Service Level Agreements and juxtaposed to other computing commodities (e.g. computational power, storage), setting a foundation for implementing next-generation schedulers and pricing models that support Kyoto-compliant CO2 trading schemes.
The Perception of Coolness: Voice Quality and Its Social Uses and Interpretations
Creators: name: Greer, Sarah
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Linguistics
subject: FOS: Languages and literature
subject: Voice Quality
subject: Creaky Voice
subject: Social Style

description: This work examined the social uses and interpretations of voice quality with respect to 6 social styles: coolness, authoritativeness, youthfulness, attractiveness, femininity, and masculinity. The following questions were investigated: (1) is there a sex differentiation with respect to the use of creaky voice; and (2) why are women using creaky voice more frequently than in past generations? These questions were addressed through 3 studies: a word-level perception pilot study, a production study, and a sentence-level perception study. The results showed that female speakers produce significantly more creaky voice than men, but both sexes use creaky voice to index the same social styles of “coolness” and “masculinity”. Listeners judged stimuli containing greater percentages of creaky voice as “cooler” and more “masculine”. Additionally, perceived “attractiveness” was tied to traditional concepts of gender roles. The increased female use of creaky voice seemed to stem from a desire to appear less “feminine” and more “masculine”, indicating that creaky voice is an overt prestige form.
Interweaving Computational Chemistry and Visualization: Explorations into Molecular Processes, Simulation Analysis, and Visualization Design
Creators: name: Hall, Kyle
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Chemistry--Physical
subject: Computer Science
subject: Visualization
subject: Crystallization
subject: Gas Hydrate
subject: Nucleation
subject: Emphasis
subject: Visualization Design
subject: Hydroxyl Radical
subject: Clathrate Hydrate

description: This thesis is a three-part exploration of both chemistry and computer science through the interweaving of computational chemistry and visualization in a research context. Motivating overarching themes in this thesis include the use of chemical simulations to advance chemical understanding, and visualization as a tool to help bridge the gap between possessing chemical simulation data and advancing chemical understanding. In Part I of this thesis, a set of novel visualizations are introduced to address data analysis challenges in the context of Molecular Dynamics simulations. Through these visualizations, aqueous hydroxyl radical chemistry is advanced (e.g., through characterization of a hydroxyl radical reaction), and concepts relevant to future chemical visualizations are revealed. In Part II, extensive simulations, detailed data analysis, and visualization are then combined to probe gas hydrate formation (a crystallization process amenable to simulation, and yet not fully understood). This work demonstrates that gas hydrate formation involves funnel-shaped potential energy landscapes, that the evolution of nascent hydrate phases can be structurally biased, and that microscopic details (e.g., guest-host interactions) can apparently impact behavior and composition of nascent mixed hydrate phases. The concepts of funnel-shaped potential energy landscapes and biased evolution are relevant to scientific understanding of crystallization more broadly beyond formation of gas hydrates. In order to support others as they design visualizations, Part III explores the role of emphasis in visualization, and introduces an alternative design approach for problem-driven visualization work. In addition to advancing chemical understanding and visualization, this thesis provides evidence that novel visualizations can help bridge the gap between possessing chemical data and achieving chemical understanding. This thesis is thus a multifaceted interdisciplinary exploration and discussion of chemical processes, visualizations and their role in chemical research, and visualization design.
Thermodynamic properties of a magnetically modulated graphene
Creators: name: Islam, SK Firoz
name: Singh, Naveen K.
name: Ghosh, Tarun Kanti
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The effect of magnetic modulation on thermodynamic properties of a graphene monolayer in presence of a constant perpendicular magnetic field is reported here. One-dimensional spatial electric or magnetic modulation lifts the degeneracy of the Landau levels and converts into bands and their band width oscillates with magnetic field leading to Weiss-type oscillation in the thermodynamic properties. The effect of magnetic modulation on thermodynamic properties of a graphene sheet is studied and then compared with electrically modulated graphene and magnetically modulated conventional two-dimensional electron gas (2DEG). We observe Weiss-type and de Haas-van Alphen (dHvA) oscillations at low and high magnetic field, respectively. There is a definite phase difference in Weiss-type oscillations in thermodynamic quantities of magnetically modulated graphene in compare to electrically modulated graphene. On the other hand, the phase remains same and amplitude of the oscillation is large when compared with the magnetically modulated 2DEG. Explicit asymptotic expressions of density of states and the Helmholtz free energy are provided to understand the phase and amplitude of the Weiss-type oscillations qualitatively. We also study thermodynamic properties when both electric and magnetic modulations are present. The Weiss-type oscillations still exist when the modulations are out-of-phase.
description: 9 figures, a new section added
Le tecniche costruttive negli scritti di architettura in Europa tra Rinascimento e prima Età Moderna
Creators: name: Cardamone, Caterina
name: Martens, Pieter
Publisher: name: Opus Incertum
Year: 2020

description: This thematic issue of Opus Incertum explores the complex relationship between construction practices and architectural writings in early modern Europe. Through selected case studies from Italy, France, Portugal and the Low Countries, it considers how allegedly oral building traditions were confronted with writing, how they adapted their time-honoured methods to theoretical frameworks, and how they used drawing in support of writing for the communication of technical know-how. Various texts on building materials and construction methods are examined to assess why and how they transmitted technical knowledge and how they related to actual building practice; the literary and rhetorical aspects of technical passages on construction are analysed to illuminate their role within the architectural treatise as a whole; and translations and adaptations of internationally circulating texts on construction are looked at to see if and how these were adjusted to local circumstances.
description: Opus Incertum, Vol. 6 (2020)
Cataclysmic Variables from SDSS. VIII. The Final Year (2007-2008)
Creators: name: Szkody, Paula
name: Anderson, Scott F.
name: Brooks, Keira
name: Gaensicke, Boris T.
name: Kronberg, Martin
name: Riecken, Thomas
name: Ross, Nicholas P.
name: Schmidt, Gary D.
name: Schneider, Donald P.
name: Agueros, Marcel A.
name: Gomez-Moran, Ada N.
name: Knapp, Gillian R.
name: Schreiber, Matthias R.
name: Schwope, Axel D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This paper completes the series of cataclysmic variables (CVs) identified from the Sloan Digital Sky Survey I/II. The coordinates, magnitudes and spectra of 33 CVs are presented. Among the 33 are eight systems known previous to SDSS (CT Ser, DO Leo, HK Leo, IR Com, V849 Her, V405 Peg, PG1230+226 and HS0943+1404), as well as nine objects recently found through various photometric surveys. Among the systems identified since the SDSS are two polar candidates, two intermediate polar candidates and one candidate for containing a pulsating white dwarf. Our followup data have confirmed a polar candidate from Paper VII and determined tentative periods for three of the newly identified CVs. A complete summary table of the 285 CVs with spectra from SDSS I/II is presented as well as a link to an online table of all known CVs from both photometry and spectroscopy that will continue to be updated as future data appear.
description: 25 pages, 6 figures, 6 tables, AJ, in press
The Brauer characters of the sporadic simple Harada-Norton group and its automorphism group in characteristics 2 and 3
Creators: name: Hiss, Gerhard
name: Müller, Jürgen
name: Noeske, Felix
name: Thackray, Jon
Publisher: name: arXiv
Year: 2012
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We determine the 2-modular and 3-modular character tables of the sporadic simple Harada-Norton group and its automorphism group.
description: 29 pages
The Giant Walkthrough Brain Project: Interactive Medical Education for the Individual, Classroom, and Beyond
Creators: name: Karaman, Tatiana
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Design and Decorative Arts
subject: Information Science
subject: Education
subject: Visualization
subject: interactive virtual education
subject: virtual exploration tools

description: The last few decades of technological advancements provide many physical and virtual techniques of displaying information. Inspired by Joseph Bogen's idea of the Giant Walkthrough Brain, this thesis discusses the creation of three innovative methods that allow us to visualize and explore human brain anatomy. First is the Giant Walkthrough Brain Show: a live virtual tour of a 3D brain museum in collaboration with science speaker Jay Ingram and his band that educates and entertains the audience using stories and music. The second method is a standalone application that recreates elements from the show to provide a similar experience to individuals on their personal computers. Lastly, the Brain Slice Explorer is a blend of physical and virtual worlds: a sliced replica of a human brain can be taken apart and studied, while corresponding QR codes provide access to a web application with further information and details.
Turbidity current flow over an obstacle and phases of sediment wave generation
Creators: name: Strauss, Moshe
name: Glinsky, Michael E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geophysics (physics.geo-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the flow of particle-laden turbidity currents down a slope and over an obstacle. A high-resolution 2D computer simulation model is used, based on the Navier-Stokes equations. It includes poly-disperse particle grain sizes in the current and substrate. Particular attention is paid to the erosion and deposition of the substrate particles, including application of an active layer model. Multiple flows are modeled from a lock release that can show the development of sediment waves (SW). These are stream-wise waves that are triggered by the increasing slope on the downstream side of the obstacle. The initial obstacle is completely erased by the resuspension after a few flows leading to self consistent and self generated SW that are weakly dependant on the initial obstacle. The growth of these waves is directly related to the turbidity current being self sustaining, that is, the net erosion is more than the net deposition. Four system parameters are found to influence the SW growth: (1) slope, (2) current lock height, (3) grain lock concentration, and (4) particle diameters. Three phases are discovered for the system: (1) "no SW", (2) "SW buildup", and (3) "SW growth". The second phase consists of a soliton-like SW structure with a preserved shape. The phase diagram of the system is defined by isolating regions divided by critical slope angles as functions of current lock height, grain lock concentration, and particle diameters.
description: 15 pages, 16 figures
Asymptotic Safety, Fractals, and Cosmology
Creators: name: Reuter, Martin
name: Saueressig, Frank
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: These lecture notes introduce the basic ideas of the Asymptotic Safety approach to Quantum Einstein Gravity (QEG). In particular they provide the background for recent work on the possibly multifractal structure of the QEG space-times. Implications of Asymptotic Safety for the cosmology of the early Universe are also discussed.
description: 41 pages, lectures given at the Sixth Aegean Summer School on Quantum Gravity and Quantum Cosmology, Chora, Naxos (Greece), September 2011
The ABCDEF's of Matrix Models for Supersymmetric Chern-Simons Theories
Creators: name: Gulotta, Daniel R.
name: Herzog, Christopher P.
name: Nishioka, Tatsuma
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider N = 3 supersymmetric Chern-Simons gauge theories with product unitary and orthosymplectic groups and bifundamental and fundamental fields. We study the partition functions on an S^3 by using the Kapustin-Willett-Yaakov matrix model. The saddlepoint equations in a large N limit lead to a constraint that the long range forces between the eigenvalues must cancel; the resulting quiver theories are of affine Dynkin type. We introduce a folding/unfolding trick which lets us, at the level of the large N matrix model, (i) map quivers with orthosymplectic groups to those with unitary groups, and (ii) obtain non-simply laced quivers from the corresponding simply laced quivers using a Z_2 outer automorphism. The brane configurations of the quivers are described in string theory and the folding/unfolding is interpreted as the addition/subtraction of orientifold and orbifold planes. We also relate the U(N) quiver theories to the affine ADE quiver matrix models with a Stieltjes-Wigert type potential, and derive the generalized Seiberg duality in 2 + 1 dimensions from Seiberg duality in 3 + 1 dimensions.
description: 30 pages, 5 figures
Ritorno a Quaracchi: villa Rucellai
Creators: name: Rinaldi, Alessandro
Publisher: name: Opus Incertum
Year: 2019

description: A drawing and some documents kept at the OFM archive in Rome, relating to the purchase of villa Rucellai in Quaracchi by the Franciscan Order, helps to identify the interventions by the new ownership at the end of the 19th century and to reconstruct with reasonable certainty the 15th century appearance of the villa. There are several similarities between the stone elements of the Commenda Gerosolimitana of St. Jacopo in Campo Corbolini and those of the villa, such as the shielded capitals on octagon pillars which are present in both. They support the hypothesis that the villa was probably built by Andrea di Nofri following Leon Battista Alberti’s programme, to which the interventions in St. Jacopo around the middle of the 15th century are related.
description: Opus Incertum, Vol. 5 (2019)
Transport modalities under the EU ETS
Creators: name: Ombudstvedt, Ingvild
Publisher: name: Zenodo
Year: 2023
Subjects: Legal issues

description: Unclear status of the various transport modalities for transportation of CO2 under the EU ETS Legal issues listed: London Protocol
 Transport modalities under the EU ETS
 Lack of incentives for BECCS and DAC
 Helsinki Convention
 EU CCS Directive (Legal) Other issues this affects: MRV Readiness
 Liability in hubs