cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Efficiency of joint enterprises with internal bargaining
Creators: name: Lambertini, Luca
name: Poddar, Sougata
name: Sasaki, Dan
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: SECS-P/01 Economia politica

description: In this paper we take a close look at those strategic incentives arising in a situation where firms share the costs and profits in a multi-firm project, and bargain for their respective (precommitted) split of cost- and profit-shares. We establish that, when each firm’s effort contribution to the joint undertaking is mutually observable (which is often the case in closely collaborative operations) and hence can form basis of the contingent cost- and profit-sharing scheme, it is not the gross economic efficiency but the super-/sub-additivity of the nett returns from effort that directly affects the sustainability of a profile of firms’ effort contributions. The (in)efficiency result we obtain in this paper is of different nature from so-called "free riding" or "team competition" problems : the set of sustainable outcomes with bargaining over precommetted cost- and profit-shares is generally neither a superset nor a subset of the sustainable set without bargaining.
Rufotrichia Matsumoto 2016
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Rufotrichia

description: Rufotrichia Matsumoto, 2016
[11 species].
Type species Holotrichia rufescens Moser, 1912, by original designation.
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 132, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Tosevskiana Pavicevic 1985
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Tosevskiana

description: Tosevskiana Pavićević, 1985
[3 species].
Type species Tosevskiana inexpectata Pavićević, 1985, by original designation.
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 132, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Listening to students : a study of elementary students' engagement in mathematics through the lens of imaginative education
Creators: name: Hagen, Pamela Anne
Publisher: name: University of British Columbia
Year: 2013

description: This dissertation investigates the problem of student engagement in elementary mathematics through the particular theoretical framework of imaginative education (IE) (Egan, 1997, 2005). The question at the centre of this study is what the use of IE and imaginative lesson planning frameworks means to children and for their engagement in elementary mathematics. For this study, five intermediate-aged elementary students were tracked through a unit of shape and space (geometry). The unit, framed with the binary opposites of vision and blindness, asked students how they might come to understand shape and space as a sighted and as a visually impaired person. Thus a humanized perspective was brought to the learning of mathematics. After the unit the five focus students took part in an individual and a whole-group semi-structured interview with the teacher/researcher. The study used qualitative instrumental case study methods; data sources included students’ mathematics journals, activity pages, transcripts of audio- and videotaped semi-structured individual and group interviews, a teacher/researcher diary, and a detailed unit overview and lesson plans. The study gathered rich descriptive data focused on bringing out the students’ perspective of their experience. Results indicate that the students demonstrated positive engagement with mathematics and that the IE theory, which utilized the students’ imaginations and affective responses, allowed multiple access points through which to connect with the mathematical concepts. Three conclusions of the study were that the students expanded their mathematical awareness through making a variety of connections, they were able to develop self-confidence in their learning of mathematics by using emotions and imagination, and they were able to use cognitive tools, particularly a sense of wonder, to engage with mathematics. The dissertation concludes with a discussion of implications and recommendations in four areas, including the need for further research in different educational contexts, in the interaction of imagination and affective responses, and into characteristics of mathematical engagement such as self-confidence. Recommendations for how future pedagogical practice might use the IE theory and embrace the expansion of students’ perspectives in classroom practice bring the dissertation to a close.
Bedeutung von Methioninen im D1-Protein der Grünalge C. reinhardtii sowie deren potentielle Interaktion mit Methioninsulfoxid-Reduktasen unter oxidativen Stressbedingungen
Creators: name: Schulze, Jana
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2014
Subjects: subject: Methionin
subject: Protein D1
subject: Oxidativer Stress
subject: Online-Publikation
subject: Hochschulschrift
subject: 571

description: Methionine (Met) können in Interaktion mit Methioninsulfoxid-Reduktasen (MSR) als endogene Antioxidantien ihre Protein-Umgebung vor reaktiven Sauerstoffspezies (ROS) schützen. Um zu klären, ob auch Met im D1-Protein von C. reinhardtii als endogene Antioxidantien (ROS-Scavenger) fungieren, wurden die Met 172, 183, 194 und 293, die sich in räumlicher Nähe zu den Chlorophyllen von PSII befinden, ausgetauscht. Diese Chlorophylle gelten als eine Hauptquelle von ROS in Pflanzen. Während der Austausch von Met 293 keine physiologischen Veränderungen bewirkte, führte der Austausch von Met 172, 183 bzw. 194 zu Einschränkungen des photoautotrophen Wachstums sowie zu einem verstärkten D1-Abbau der jeweiligen Mutante im Starklicht. Das Fehlen der Met als potentielle ROS-Scavenger könnte die intrazelluläre ROS-Konzentration erhöhen und damit D1-Schäden und D1-Abbau verstärken. Darüber hinaus konnte eine MSR vom Typ A im Kerngenom von C. reinhardtii identifiziert werden. MSRA2 wird unter oxidativen Stressbedingungen verstärkt transkripiert, ist offensichtlich im Chloroplasten lokalisiert und stellt damit einen potentiellen Kandidaten für eine endogenen Abwehr dar.
description: Methionines (met) can protect their protein environment as endogenous antioxidants against reactive oxygen species (ROS). It is unclear if also met of the D1 protein in the green algae C. reinhardtii act as endogenous antioxidants (ROS-scavenger). Met 172, 183, 194 and 293 that are localized close to the PSII chlorophylls were substituted in order to clarify this question. These chlorophylls are a main source of ROS in plant cells. Substitution of met 293 caused no physiological changes within the respective mutant. In contrast, the substitution of met 172, 183 and 194 caused decreased photoautotrophic growth and enhanced D1 degradation under high light. The lack of met as potential ROS scavenger in the mutants could increase the intracellular ROS concentration that could indeed enhance the damage and the degradation of the D1 protein. Furthermore, I could identify a MSR of type A in the nuclear genome of C. reinhardtii with an enhanced expression under oxidative stress conditions. It is assumed that MSRA2 is localized within the chloroplast. Hence, MSRA2 displays a potential candidate for an endogenous defense mechanism.
Swords and Plowshares: Regional Trade Agreements and Political Conflict in Africa
Creators: name: Andreatta, Filippo
name: Ardeni, Pier Giorgio
name: Pallotti, Arrigo
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: SECS-P/01 Economia politica

description: The end of the Cold War and the apparent stability of the contemporary international system, in which the probability of a major war is at its lowest for centuries, have spurred a lively debate on the causes of peace. One of the most popular explanations is based on the classic liberal statement that economic interdependence reduces political conflict. Globalisation, narrowly defined as the increase in the quantity and quality of international economic exchanges experienced in the last few years, would then be one of the main reasons for international political stability. Even at the regional level, therefore, the increase in economic intercourse should bring, as a welcome political externality, the amelioration of international conflict. This view posits, for instance, that the emergence of a «zone of peace» within Western Europe has been brought about by the creation of a common market which has created a powerful incentive to avoid political conflict. Or that in other areas, such as Latin America, the recent increase in regional stability would rest on the launch of Mercosur and the greater interdependence that it has brought about. The hypothesis is that Regional Trade Agreements (RTAs) facilitate economic interdependence, which in turn facilitate political stability. In this paper we apply this hypothesis to the African case where a significant number of RTAs has been created in the last decades. Expectations of increased political stability have not, however, been confirmed. This does not necessarily undermine the general proposition of a positive correlation between interdependence and peace, but it does suggest that the relationship between the two elements may be more complicated than often acknowledged. On the one hand, African RTAs may simply not have produced the necessary level of trade and investment for a significant modification of political preferences. On the other hand, interdependence may be a necessary condition for peace, but it may also be insufficient, as its full impact on political preferences may require specific domestic institutions.
Perturbed damped pendulum: finding periodic solutions
Creators: name: Novaes, Douglas Duarte
Publisher: name: arXiv
Year: 2011
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37G15, 37C80, 37C30

description: Using the damped pendulum system we introduce the averaging method to study the periodic solutions of a dynamical system with small perturbation. We provide sufficient conditions for the existence of periodic solutions with small amplitude of the non--linear perturbed damped pendulum. The averaging theory provides a useful means to study dynamical systems, accessible to Master and PhD students.
The role of subsidies in promoting italian joint ventures in least developed and transition economies
Creators: name: Barba Navaretti, Giorgio
name: Santarelli, Enrico
name: Vivarelli, Marco
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: SECS-P/01 Economia politica

description: This paper analyses the impact of subsidies to promote Italian joint ventures (JVs) with firms in LDC and transition economies. The empirical analysis is carried out on a unique dataset of 172 JVs interviewed during 1998 by means of a closed-answer qualitative-quantitative questionnaire. The main finding of the study is that although there is a significant deadweight component in incentive policy, subsidised firms are significantly more likely to grow. Moreover, JVs comprising new firms (which need to grow to survive) also achieve a higher-than- average employment performance, and so too do (labour intensive) JVs motivated by the search for lower labour costs, and JVs in East European countries.
Aposchiza Brenske 1903
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Aposchiza

description: Aposchiza Brenske, 1903b
[1 species].
Type species Aposchiza schulzi Brenske, 1903, 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 133, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Joint Venture for Product Innovation and Cartel Stability under Vertical Differentiation
Creators: name: Iori, Cristina
name: Lambertini, Luca
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: SECS-P/01 Economia politica

description: We describe a vertically differentiated market where firms choose between activating either independent ventures leading to distinct product qualities, or a joint venture for a single quality. Then, firms either repeat the oneshot Nash equilibrium forever, or behave collusively, according to discount factors. We prove that there exists a parameter region where the joint venture makes it more difficult for firms to sustain collusive behaviour, as compared to independent ventures. Therefore, public policies towards R&D behaviour should be designed so as not to become inconsistent with the procompetitive attitude characterising the current legislation on marketing practices.
Expanding Universe: slowdown or speedup?
Creators: name: Bolotin, Yu. L.
name: Lemets, O. A.
name: Yerokhin, D. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The kinematics and dynamic interpretation of the cosmological expansion is reviewed in a widely accessible manner with emphasis on the acceleration aspect. Virtually all the approaches that can in principle account for the accelerated expansion of the Universe are reviewed, including dark energy as an item in the energy budget of the Universe; modified Einstein equations; and, on a fundamentally new level, the use of the holographic principle.
description: 70 pages, 16 figures, 1 tables. corrected some errors
The Boltzmann Equation from Quantum Field Theory
Creators: name: Drewes, Marco
name: Mendizabal, Sebastian
name: Weniger, Christoph
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show from first principles the emergence of classical Boltzmann equations from relativistic nonequilibrium quantum field theory as described by the Kadanoff-Baym equations. Our method applies to a generic quantum field, coupled to a collection of background fields and sources, in a homogeneous and isotropic spacetime. The analysis is based on analytical solutions to the full Kadanoff-Baym equations, using the WKB approximation. This is in contrast to previous derivations of kinetic equations that rely on similar physical assumptions, but obtain approximate equations of motion from a gradient expansion in momentum space. We show that the system follows a generalized Boltzmann equation whenever the WKB approximation holds. The generalized Boltzmann equation, which includes off-shell transport, is valid far from equilibrium and in a time dependent background, such as the expanding universe.
description: title changed, discussion extended and example added, references added
Urbanization as state building : a case study of governance reform in the Guangzhou Luogang District, China
Creators: name: Wong, Siu Wai
Publisher: name: University of British Columbia
Year: 2013

description: Over the past three decades, China’s urban population has increased by more than 400 million. How could this rapid, unprecedented process of urban transformation come about without causing widespread social upheavals in socialist China? With an in-depth case study of the Guangzhou Luogang District, this dissertation takes a micro-historical approach to understand this swift urbanization process and its impact on the transformation of rural society as well as the restructuring of local governance. By examining how the local state, village organizations, villagers and other non-state actors have dealt with their land-based conflicts and struggles arising from state-led urbanization, this study argues that the requisition of rural land for urban expansion was not merely a process of land grabbing by corrupt and unscrupulous local state to facilitate economic growth. Rather, it should also be interpreted as a process of state building, whereby the local government reshaped its governance strategy so as to mitigate potential social unrest and to strengthen its legitimacy in the eyes of villagers. The findings of this study will shed new light on how and why socialist China has been able to maintain such unparalleled and unprecedented rates of urban growth despite incessant land disputes and numerous social tensions at different localities. It is also hoped that this research will arouse broader intellectual discourse on governance restructuring and local government, specifically about the relationships between power decentralization, public-private partnership, citizen empowerment and civic engagement in governance strategies that attempt to realize collective interests under the present epoch of economic globalization and neo-liberalization.
Excess Capacity in Oligopoly with Sequential Entry
Creators: name: Lambertini, Luca
name: Rossini, Gianpaolo
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2000
Subjects: SECS-P/01 Economia politica

description: We analyse sequential entry in a quantity-setting oligopoly model. Firms have the option to adopt either a productive capacity which is optimal at the time of entry or a smaller one. This capacity may be suitable either for the steady state or just some time after entry. In the latter case firms never carry idle capacity, while in the former they keep spare capacity in the steady state. In the Cournot-Nash setting, a subgame perfect equilibrium may result in firms investing in capacity that will turn out to be idle later, depending on the size of the market and the rental price of capital. Older firms have larger spare capacity than later entrants and we can tell the age of a firm from its unused capacity. If market size is large enough, excess capacity turns out to be socially optimal.
Cleaning up the cosmological constant
Creators: name: Kimpton, Ian
name: Padilla, Antonio
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a novel idea for screening the vacuum energy contribution to the overall value of the cosmological constant, thereby enabling us to choose the bare value of the vacuum curvature empirically, without any need to worry about the zero-point energy contributions of each particle. The trick is to couple matter to a metric that is really a composite of other fields, with the property that the square-root of its determinant is the integrand of a topological invariant, and/or a total derivative. This ensures that the vacuum energy contribution to the Lagrangian is non-dynamical. We then give an explicit example of a theory with this property that is free from Ostrogradski ghosts, and is consistent with solar system physics and cosmological tests.
description: 8 pages, typos corrected and more text added, version accepted for publication in JHEP
Atysilla Strand 1942
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Atysilla

description: Atysilla Strand, 1942
[21 species].
Replacement name for Atys Reiche, 1850, not Atys Montfort, 1810, Atys Leach, 1816, nor Atysa Baly, 1864.
Note: Genyoschiza Moser, 1917, a subjective synonym, has precedence over Atysilla Strand, 1942, but the latter is in prevailing usage. An application to the Commission to reverse precedence to conserve the usage of the name Atysilla is needed.
Atys Reiche, 1850.
Type species Atys samenensis Reiche, 1850, by monotypy.
Genyoschiza Moser, 1917.
Type species Genyoschiza tarsalis Moser, 1917, by monotypy.
Synonymy by Arrow (1944).
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 133, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Festphasenmikroextraktion für die Arzneimittelbestimmung in Blutplasma
Creators: name: Kruggel, Silvia
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2002
Subjects: Arzneimittelüberwachung
Pharmakokinetik
Neuroleptikum
Antidepressivum
Serodiagnostik
Festphasenmikroextraktion
Kapillargaschromatographie
Hochschulschrift
Zsfassung in engl. Sprache

description: Die Festphasenmikroextraktion (SPME) in Kombination mit Gaschromatographie (Stickstoff-Phosphor-selektiver Detektor) wurde als Probenaufarbeitung für die Betimmung von Neuroleptika und Antidepressiva in Blutplasma untersucht. Eine Mischung aus 250 µl Blutplasma, Wasser, internem Standard und wässriger Natronlauge wurde mit einer 100-µm-Polydimethylsiloxan-Faser extrahiert. Die Fasern konnten für mehr als 75 Analysen genutzt werden. Die Wiederfindungsraten wurden mit weniger als 7 % nach einer 30 minütigen Extraktion aus Plasma bestimmt. Trotz der niedrigen Wiederfindungsrate konnten die Analyten gut abgetrennt werden und die Kalibrierungen waren im therapeutischen Bereich der Arzneistoffe linear. Die serielle und zwischentägliche Präzisionen wurden bestimmt. Es konnten keine interferierenden Arzneimittel gefunden werden. Der Einfluss von Änderungen der Protein-, Triglycerid- und Salzkonzentrationen auf die Peak-Flächen und Peak-Flächen-Verhältnisse wurde untersucht. Die Methode wird nicht von physiologischen Schwankungen in der Zusammensetzung der Matrix beeinflusst. Es wurden gute Übereinstimmungen mit LLE-GC- und HPLC-Standard-Methoden für versetzte und Patienten-Proben gefunden. Es kann geschlussfolgert werden, dass die Methode für das therapeutische Drug-monitoring für Clozapin, Levomepromazin, Clomipramin, Olanzapin und Clomethiazol genutzt werden kann.
description: Solid-phase microextraction (SPME) combined with gas chromatography (nitrogen-phosphorous selective detection) was investigated as a sample preparation technique for the assay of neuroleptic and antidepressant drugs in human plasma. A mixture of 250 µl of human plasma, water, internal standard and aqueous NaOH was extracted with a 100-µm-polydimethylsiloxane-fiber. Fibers were used repeatedly in up to 75 analyses. The recoveries of the analytes in plasma were found to be lower than 7 % after 30 min of extraction. However, in spite of the low recoveries the analytes were well separated and the calibrations were linear within the terapeutic windows of the drugs. The within-day and between-day precisions were investigated. No interfering drug was found. The influence of the concentration of proteins, triglycerides and salts, i.e. changes of the matrix on the peak areas and peak-area ratios were studied. The method is not impaired by physiological varieties in the composition of the matrix. Good agreement was found with LLE-GLC- and HPLC-standard methods for spiked and patient samples, respectively. It is concluded that the method can be used in the therapeutic drug monitoring of clozapine, levomepromazine, clomipramine, olanzapine and clomethiazol.
On the optical properties of Ag^{+15} ion-beam irradiated TiO_{2} and SnO_{2} thin films
Creators: name: Thakur, Hardeep
name: Gautam, Sanjeev
name: Thakur, P.
name: Sharma, K. K.
name: Singh, Abhinav Pratap
name: Kumar, Yogesh
name: Kumar, Ravi
name: Chae, Keun Hwa
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The effects of 200-MeV Ag^{+15} ion irradiation on the optical properties of TiO_{2} and SnO_{2} thin films prepared by using the RF magnetron sputtering technique were investigated. These films were characterized by using UV-vis spectroscopy, and with increasing irradiation fluence, the transmittance for the TiO_{2} films was observed to increase systematically while that for SnO_{2} was observed to decrease. Absorption spectra of the irradiated samples showed minor changes in the indirect bandgap from 3.44 to 3.59 eV with increasing irradiation fluence for TiO_{2} while significant changes in the direct bandgap from 3.92 to 3.6 eV were observed for SnO_{2}. The observed modifications in the optical properties of both the TiO_{2} and the SnO_{2} systems with irradiation can be attributed to controlled structural disorder/defects in the system.
description: 6 pages, ICAMD-2011
Stenosophrops Nomura 1977
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Stenosophrops

description: Stenosophrops Nomura, 1977
[5 species].
Type species Stenosophrops longicornis Nomura, 1977, by original designation.
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 132, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Infrared bound and mean-field behaviour in the quantum Ising model
Creators: name: Björnberg, Jakob E.
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 an infrared bound for the transverse field Ising model. This bound is stronger than the previously known infrared bound for the model, and allows us to investigate mean-field behaviour. As an application we show that the critical exponent $γ$ for the susceptibility attains its mean-field value $γ=1$ in dimension at least 4 (positive temperature), respectively 3 (ground state), with logarithmic corrections in the boundary cases.
description: 42 pages, 5 figures, to appear in CMP
Thermal analysis of RF-MEMS switches for power handling front-end
Creators: name: Coccetti, F.
name: Ducarouge, B.
name: Scheid, E.
name: Dubuc, D.
name: Grenier, K.
name: Plana, R.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2005
Subjects: ING-INF/01 Elettronica

description: An experimental setup for the characterization of electromagnetic induced heat onMEMSdevices undertaking high RF power regime (> 5W) ishereproposed.The technique is based on infrared (IR) imaging of on-probe DUT, while it isin working conditions.Themeasured temperature distributions, for different working state of a RF-MEMS switch, are given. The results showthat for a first considered capacitive switch, the most critical working state is the OFF-state (membrane actuated). In this casethe hot-spots temperature reach75.5°C, for a input power of 6.3W at 10GHz. On the other hand, for the same incident power and frequency a maximum rise of only 5°C has been measured forthe ON-state (membrane in the restposition).Temperature mapping results for a second switch design are moreover presented.This steady-state map offers a real time global performance overview of the RF induced phenomena, and represents a very valuable real-time investigation tool for integrated MEMS and RFIC power handling front-end.
Magmatic and hydrothermal stratigraphy of Paleocene and Eocene porphyry Cu-Mo deposits in southern Peru
Creators: name: Simmons, Adam Thomas
Publisher: name: University of British Columbia
Year: 2013

description: A geological investigation of the of the Paleocene-Eocene Cu-Mo porphyry belt of southern Peru was undertaken at the Quellaveco Cu-Mo porphyry system with complimentary work completed at the Cuajone and Toquepala mines. This work adds to the understanding of the formation and evolution of igneous systems associated with Cu-Mo porphyry formation in an understudied but economically significant copper source globally. The Quellaveco Igneous Complex is composed of at least five phases of porphyritic intrusions which were emplaced into a slightly older equigranular granodiorite batholith and Late Cretaceous Toquepala Group volcanic rocks. These intrusions were emplaced from approximately 58Ma to 53Ma. The intrusions with the closest temporal and spatial association to copper may have been emplaced in as short a timespan as approximately 1.5m.y. These time periods and time spans are almost identical to those for the emplacement of the igneous systems at Cuajone and Toquepala. At Quellaveco, zircon mineral chemistry indicates that the igneous systems associated with porphyry copper formation are different to those not associated with porphyry copper formation. Geochemical disruptions, flat to cup shaped Eu/Eu* anomalies and rapid changes in temperature of formation of the zircons with their growth are indicative of zircons from the porphyry intrusions from Quellaveco. It is postulated that these geochemical signatures may indicate that intrusions associated with the formation of the hydrothermal systems are derived from fractionating and cooling magmatic systems which remained relatively oxidized and were subject to periodic geochemical disturbance. The geochemical disturbances may reflect a dynamic deeper magmatic system where magma mixing, replenishment and scouring of wall rock took place. At Quellaveco, each of the porphyritic intrusions are temporally related with a hydrothermal system. Each hydrothermal system is an evolution of mineral assemblages in veins from biotite-magnetite-chalcopyrite rich veins to quartz-sulphide rich veins to quartz vein with quartz-sericite selvages. This sequence of vein evolution repeats itself at Quellaveco at least four times. Each hydrothermal system occurs immediately after the emplacement of at least five porphyry intrusion suites.
Transport spectroscopy of NS nanowire junctions with Majorana fermions
Creators: name: Prada, Elsa
name: San-Jose, Pablo
name: Aguado, Ramon
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate transport though normal-superconductor nanowire junctions in the presence of spin-orbit coupling and magnetic field. As the Zeeman field crosses the critical bulk value B_c of the topological transition, a Majorana bound state (MBS) is formed, giving rise to a sharp zero-bias anomaly (ZBA) in the tunneling differential conductance. We identify novel features beyond this picture in wires with inhomogeneous depletion, like the appearance of two MBSs inside a long depleted region for B
description: 10 pages, 12 figures. Published version, supplementary material included
Losses in Transporting and Handling Grain by Selected Grain Marketing Cooperatives
Creators: name: Rickenbacker, Joseph E.
name: Thompson, William H.
name: Rickenbacker, Joseph E.
name: Thompson, William H.
Publisher: name: Unknown
Year: 1966
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods

description: Excerpts from the report: Loss and damage to grain during handling and transportation is a serious economic problem to farmers and their grain marketing cooperatives. Farmer Cooperative Service conducted this study of losses in handling and transporting grain by rail and barge, with particular emphasis on shortage of weight at destination, in order to explore the economic significance of the losses, to identify possible causal relationships, and to suggest ways to control or eliminate the losses. Six regional grain marketing cooperatives in the Midwest cooperated in the study. These regionals supplied data on shipments made over a period of up to 3 years from 107 local elevators affiliated with one or more of them. A total of 13,611 individual rail shipments were studied, amounting to over 35 percent of all rail shipments made by these elevators during the period covered. The sampling rate on shipments at individual elevators ranged from 10 percent to 100 percent, depending on shipping volume.
Pyroelectric-like response in semi-insulating III-V crystal
Creators: name: Poplavko, Yuri
name: Ilchenko, Michael
name: Pereverzeva, Larissa
name: Prokopenko, Yuri
name: Ivaschuk, Anatoliy
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1999
Subjects: ING-INF/01 Elettronica

description: Under the anisotropy of boundary conditions, a high-gap III-V semiconductor indicates behavior of pyroelectric crystal (in spite of it is a piezoelectric only). Partial strain limitation in the [111]-plate of this crystal provides its substantial electric response to the time-variation in temperature dT(t) or in pressure dp(t). Herewith the voltage sensitivity of semi-insulating GaAs sensor is close to one of the PZT ceramics. However, PZT cell-transducer used in sensor device needs to be integrated with the semiconductor amplifier. Unlike of this, the transducer and the amplifier are various parts of one crystal chip in the sensor device based on III-V crystal.
Aulacoschiza Decelle 1973
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Aulacoschiza

description: Aulacoschiza Decelle, 1973
[3 species].
Type species Aulacoschiza triphylla Decelle, 1973, by original designation.
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 133, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Accurate new scaling routines for any table/function based FET model including temperature and noise behaviour
Creators: name: Follmann, R.
name: Tempel, R.
name: Herrmann, J.
name: Sporkmann, T.
name: Wolff, I.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: In this paper we present new scaling routines for any table/function based nonlinear FET model. These measurement based routines are very accurate and can also be used to calculate temperature behaviour. Also the prediction of noise behaviour is possible for scaled devices.
Modelling the photoresponse characteristics of InP/InGaAs heterojunction phototransistor with different incident directions of beam light
Creators: name: Chennafi, Noureddine
name: Rumelhard, Christian
name: Gonzalez, Carmen
name: Thuret, Julien
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: Numerical simulations of Heterojunction bipolar Phototransistor (HPT) were performed using a two-dimensional finite element program. These simulations are done on configurations of phototransistors which are realised in CNET Bagneux. Comparison between simulation and measurement was done for topside illumination and good agreement was found. Different incident directions of beam light were simulated to study their effects on frequency response of the phototransistor. For the configurations of transistor used in our work, it is found that the lateral illumination gives a better optical cut off frequency than the upside and the downside illuminations (72 GHz and 42 GHz respectively) for the same incident optical power.
Coxeter groups, imaginary cones and dominance
Creators: name: Fu, Xiang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20F55 (Primary) 20F10, 20F65 (Secondary)

description: Brink and Howlett have introduced a partial ordering, called dominance, on the positive roots in the Tits realization of Coxeter groups (Math. Ann. 296 (1993), 179--190). Recently a concept called $\infty$-height is introduced to each reflection in an arbitrary Coxeter group $W$ (Edgar, Dominance and regularity in Coxeter groups, PhD thesis, 2009). It is known (Dyer, unpublished) that for all $W$ of finite rank, and for each non-negative $n$, the set of reflections of $\infty$-height equal to $n$ is finite. However, it is not clear that the concepts of $\infty$-height and dominance are related. Here we show that the $\infty$-height of an arbitrary reflection is equal to the number of positive roots strictly dominated by the positive root corresponding to that reflection. We also give applications of dominance to the study of imaginary cones of Coxeter groups.
A novel thermal resistance extraction technique for temperature-dependent FET modelling
Creators: name: Schmale, Ingo
name: Kompa, Günter
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: This paper proposes a novel technique for extracting FET thermal resistances. The technique is very simple since it requires only data from conventional DC measurements of the gate current, which makes it suitable for widespread application. It is essentially based on the gate-diode's high sensitivity to channel temperature increase engendered by device self-heating. After deriving and explaining the technique's procedural steps, its results for an 0.5um-gate MESFET are critically discussed.
Gunn diode modelling through a new load-pull characterization method
Creators: name: Deschamps, B.
name: Bourreau, D.
name: Péden, A.
name: Toutain, S.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: This paper presents a very efficient Gunn diode circuit model whose components are determined by a new method of large signal characterization which requires much less power from the generator than classical techniques. This method can be exploited through one of the two measurement setups presented according to the power provided by the power supply. This technique will be particularly interesting at millimeter-waves. The model will allow global modelling of sources such as power combiners at these frequencies.
Rhyxiderma Moser 1924
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Rhyxiderma

description: Rhyxiderma Moser, 1924a
[1 species].
Type species Rhyxiderma celebensis Moser, 1924, 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 132, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Regulation of PKP1´s function in intercellular adhesion, proliferation and barrier formation
Creators: name: Rietscher, Katrin
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2018
Subjects: subject: 572

description: Desmosomen vermitteln eine starke interzelluläre Adhäsion über desmosomale Cadherine, die mit intrazellulären Proteinen interagieren, einschließlich Plakophilinen (PKPs) 1 und 3, welche Keratinfilamente verankern. Um die Rolle von PKP1 in der Stabilität von Desmosomen, Gewebedifferenzierung und Homöostase zu untersuchen, wurden PKP1 Knockout Mäuse generiert und charakterisiert. Diese Arbeit beschreibt PKP1 als essentiellen Regulator der epidermalen Homöostase, indem es die desmosomale interzelluläre Adhäsion, die Funktion von Tight Junctions sowie das Zellwachstum kontrolliert, eine Funktion, welche für die Wundheilung und epidermale Tumorentwicklung entscheidend ist. Außerdem wird PKP1 über den Insulin/IGF1-Signalweg reguliert. Nach Aktivierung des PI3K/Akt-Signalweges wird PKP1 durch Akt2 phosphoryliert, was zu einer cytoplasmatischen Akkumulation des Proteins führt, einhergehend mit verringerter interzellulärer Adhäsion, verstärkter Proliferation, Wundheilung und verankerungsunabhängigem Wachstum. Darüber hinaus zeigt diese Arbeit neue Isoform-spezifische Wechselwirkungen von PKP1 und 3 mit 14-3-3-Proteinen, welche die Stabilität von Desmosomen regulieren.
description: Desmosomes mediate strong intercellular adhesion through desmosomal cadherins that interact with intracellular linker proteins including plakophilins (PKPs) 1 and 3 to anchor keratin filaments. PKPs show overlapping but distinct expression patterns in the epidermis. To resolve the role of PKP1 in desmosome stability, tissue differentiation and homeostasis, PKP1-knockout mice were generated and characterized. This work identifies PKP1 as a regulator of tissue homeostasis controlling desmosomal intercellular adhesion, tight junctions function and growth control, a function that is crucial in wound healing and epidermal carcinogenesis. Moreover, PKP1 is regulated by insulin/IGF1 signaling. Upon activation of the PI3K/Akt pathway, PKP1 is phosphorylated by Akt2 resulting in its predominant cytoplasmic accumulation correlated with reduced intercellular adhesion, enhanced proliferation, wound healing and anchorage-independent growth suggesting that PKP1 may contribute to tumorigenesis in a context-dependent way. In addition, this work shows novel isoform-specific interactions of PKPs and 14-3-3 proteins to control desmosome stability.
Design and performance assessment of a multigigabit clock-recovery circuit
Creators: name: Lima, Mario J.
name: Monteiro, Paulo P.
name: Matos, J. Nuno
name: Da Rocha, Jose F.
name: Teixeira, Antonio
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: This paper presents the design and experimental results of a nonlinear circuit and a tuned amplifier developed in the same GaAs monolithic microwave integrated circuit (MMIC), used in a 20 Gsymbol/s open-loop clock recovery unit. The nonlinearity is an unbalanced structure and its input stage performs the necessary signal formatting to reduce the recovered clock jitter, avoiding the use of additional pre-filtering. Both circuits were integrated in the same MMIC in order to improve the reliability, performance and to reduce the size and cost. Performance assessment of the clock recovery unit consisting of the two designed circuits and a high-Q bandpass filter is carried out, considering two different line codings, binary NRZ (20 Gbit/s) and 4-level (40 Gbit/s).
A new design concept for realising highly tunable microwave filters using recursive principles
Creators: name: Mouzannar, W.
name: Billonnet, L.
name: Jarry, B.
name: Guillon, P.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: In this paper, new active monolithic microwave integrated bandpass filters employing recursive principles are developped. A 7 GHz fixed center frequency filter with 2% bandwidth, and a tunable filter with 2.5 GHz tuning range around 8 GHz, are succesfully implemented employing 0.2 um GaAs P-HEMT monolithic technology, and exhibit excellent measured performances.
Parabolic Stein Manifolds
Creators: name: Aytuna, Aydin
name: Sadullaev, Azimbay
Publisher: name: arXiv
Year: 2011
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32U05, 46A61, 32U15 (Primary) 46a63, 32U15 (Secondary)

description: An open Riemann surface is called parabolic in case every bounded subharmonic function on it reduces to a constant. Several authors introduced seemingly different analogs of this notion for Stein manifolds of arbitrary dimension. In the first part of this note we compile these notions of parabolicity and give some immediate relations among them. In section 3 we relate some of these notions to the linear topological type of the Fréchet space of analytic functions on the given manifold. In sections 4 and 5 we look at some examples and show, for example, that the complement of the zero set of a Weierstrass polynomial possesses a continuous plurisubharmonic exhaustion function that is maximal off a compact subset.
description: Corrected typos. Added references
Beriqua Peringuey 1904
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Beriqua

description: Beriqua Péringuey, 1904
[1 species].
Type species Beriqua modesta Péringuey, 1904, 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 133, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
A 23 GHz baseband HBT distributed amplifier for optical communication systems
Creators: name: Iqbal, A.
name: Darwazeh, I. Z.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 1998
Subjects: ING-INF/01 Elettronica

description: This paper reports on a practical HBT distributed amplifier MMIC suitable for optical receiver applications. The circuit topology is based upon application of a novel technique which allows baseband operation in conjunction with dc bias stabilisation and does not consume a large amount of chip area. 2x2 um2 single emitter finger InGaP/GaAs HBTs with fT = 60 GHz and Bdc = 100 have been employed. Simulation results show a bandwidth extending from near-dc to 23 GHz and an S21 gain of 11± 1 dB at midband. The amplifier has a transimpedance gain of 45± 1 dBOhm and a group delay variation of ±30 ps across the passband. Eye diagram simulations indicate its potential for handling data rates of up to 30 Gbit/s when employed as an optical receiver preamplifier.