cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Indigenization of social work education and practice: a participatory action research project in Ghana
Creators: name: Kreitzer, Linda
Publisher: name: Social Work
Year: 2004

description: Bibliography: p. 258-272
description: Some page are in colour.
description: The hegemony of western knowledge has influenced and continues to influence knowledge production throughout the world. Factors including colonialism, development under modernization and current neo-liberal globalization policies have helped to define knowledge production that promotes western thinking. Indigenous knowledge, for the most part, continues to be deemed primitive and unimportant. This hegemony is seen in the historical domination of Western social work knowledge worldwide and can be traced back to the colonial era. During the middle 20th century, social work education expanded to other non­western countries in an imperialistic fashion with the assumption that western social work knowledge, mainly North American and British, was universal and transferable. West Africa was influenced by this exportation of western social work knowledge, in particular, in Ghana. During the 1960s and 1970s, the Association of Social Work Education in Africa and the Ghana Association of Social Workers were active in promoting social work education and practice in that area. Over time, these organizations have lost their momentum and are perceived to have become ineffective. Western social work knowledge has continued its domination of social work education there. This study attempts to address the hegemony of western social work knowledge through a critical and emancipatory approach to knowledge production. Guided by Critical Theory and Participatory Action Research, it explores the processes of westernization and indigenization that have affected. Ghanaian society. Through a dialogical process, faculty, students, social workers and a community leader came together to create new knowledge concerning Ghanaian social work. Through this critical process, the group emerged with action plans that changed their situations personally and professionally. This new knowledge reflects a need for a greater profile of social work in Ghana, an organizational change in regards to the Ghana Association of Social Workers and a greater emphasis on the publication and use of indigenous writing in social work education. It is hoped that the new knowledge produced from this research will continue to evolve and will motivate and challenge social workers in Ghana to develop an innovative social work education and practice that will be relevant to the needs of Ghanaian society.
Fabrication and Electrical Characterization of Fully CMOS Si Single Electron Devices
Creators: name: Koppinen, P. J.
name: Stewart,, M. D.
name: Zimmerman, Neil M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present electrical data of silicon single electron devices fabricated with CMOS techniques and protocols. The easily tuned devices show clean Coulomb diamonds at T = 30 mK and charge offset drift of 0.01 e over eight days. In addition, the devices exhibit robust transistor characteristics including uniformity within about 0.5 V in the threshold voltage, gate resistances greater than 10 GΩ, and immunity to dielectric breakdown in electric fields as high as 4 MV/cm. These results highlight the benefits in device performance of a fully CMOS process for single electron device fabrication.
description: 7 pages, 7 figures
Connecting Image Inpainting with Denoising in the Homogeneous Diffusion Setting
Creators: name: Gaa, Daniel
name: Chizhov, Vassillen
name: Peter, Pascal
name: Weickert, Joachim
name: Adam, Robin Dirk
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: While local methods for image denoising and inpainting may use similar concepts, their connections have hardly been investigated so far. The goal of this work is to establish links between the two by focusing on the most foundational scenario on both sides: the homogeneous diffusion setting. To this end, we study a denoising by inpainting (DbI) framework: It averages multiple inpainting results from different noisy subsets. We derive equivalence results between DbI on shifted regular grids and homogeneous diffusion filtering in 1D via an explicit relation between the density and the diffusion time. We also provide an empirical extension to the 2-D case. We present experiments that confirm our theory and suggest that it can also be generalized to diffusions with non-homogeneous data or non-homogeneous diffusivities. More generally, our work demonstrates that the hardly explored idea of data adaptivity deserves more attention: It can be as powerful as some popular models with operator adaptivity.
Correlating the fluid phase behaviour of polydisperse polyethylene solutions using the modified Sanchez-Lacombe equation of state
Creators: name: Krenz, Ryan A.
Publisher: name: University of Calgary
Year: 2005

description: Bibliography: p. 45-58, 121-123, 149, 205, 223, 240, 269-270, 302-303, 358-366, 434-435, 504-505, 522, 616-617, 666-667, 686, 773-774, 828-829, 883-885, 936, 948, 965, 980
description: The objective of this research was to correlate the fluid phase behaviour of polyethylene solutions using pseudocomponents to explicitly account for the molar mass distribution of the polymer. Different parts of the molar mass distribution affect different parts of the phase diagrams of polyethylene solutions. Cloud point, bubble point, and liquid - liquid bubble point experiments were carried out on a system of industrial significance: linear low-density polyethylene (LLDPE) - n-hexane - ethylene. An alternate calibration method is explained for measuring the polyethylene molar mass distribution using size exclusion chromatography (SEC). The anchored quadrature technique is introduced for transforming a continuous molar mass distribution into a discrete number of pseudocomponents by fixing one of the average molar masses and the lightest and heaviest molar masses. An algorithm is presented for performing equilibrium calculations in two or more phases involving at least one solvent and one polymer compound. The algorithm uses a damped Newton-Raphson method to perform flash and phase boundary calculations. If an equation of state is of the appropriate type, there is only one independent pseudocomponent for each solvent and two independent pseudocomponents for each polymer. The entire list of pseudocomponents for each polymer is used only in specific parts of the algorithm to reduce computational times for polymers with many pseudocomponents. These modifications are also applied to spinodal and critical point calculations. The modified Sanchez-Lacombe (MSL) equation is presented with parameters relevant for calculating the phase diagrams of polyethylene solutions. Polyethylene parameters were calculated from both polymer density data and polymer - solvent cloud point data. Dew and bubble point boundaries were correlated to obtain binary interaction parameters for solvent- solvent systems. Polyethylene - solvent binary interaction parameters were found by correlating cloud point boundaries of those mixtures. The amount of branching in the polyethylene molecule can have a significant effect on the fluid phase behaviour of a polymer - solvent mixture and this effect is incorporated into the binary interaction parameters. The MSL equation can qualitatively reproduce the phase diagrams of most polyethylene - solvent systems.
High-temperature oxide thermoelectrics
Creators: name: Terasaki, Ichiro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have evaluated the power factor of transition metal oxides at high temperatures using the Heikes formula and the Ioffe-Regel conductivity. The evaluated power factor is found to be nearly independent of carrier concentration in a wide range of doping, and well explains the experimental data for cobalt oxides. This suggests that the same power factor can be obtained with a thermopower larger than $2k_B/e$, and also suggests a reasonably high value of the dimensionless figure of merit $ZT$. We propose an oxide thermoelectric power generator by using materials having a thermopower larger than 300 $μ$V/K.
description: 5 pages, 2 figures
Magnetic spots on hot massive stars
Creators: name: Cantiello, Matteo
name: Braithwaite, Jonathan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Hot luminous stars show a variety of phenomena in their photospheres and winds which still lack clear physical explanation. Among these phenomena are photospheric turbulence, line profile variability (LPV), non-thermal emission, non-radial pulsations, discrete absorption components (DACs) and wind clumping. Cantiello et al. (2009) argued that a convection zone close to the stellar surface could be responsible for some of these phenomena. This convective zone is caused by a peak in the opacity associated with iron-group elements and is referred to as the "iron convection zone" (FeCZ). Assuming dynamo action producing magnetic fields at equipartition in the FeCZ, we investigate the occurrence of subsurface magnetism in OB stars. Then we study the surface emergence of these magnetic fields and discuss possible observational signatures of magnetic spots. Simple estimates are made using the subsurface properties of massive stars, as calculated in 1D stellar evolution models. We find that magnetic fields of sufficient amplitude to affect the wind could emerge at the surface via magnetic buoyancy. While at this stage it is difficult to predict the geometry of these features, we show that magnetic spots of size comparable to the local pressure scale height can manifest themselves as hot, bright spots. Localized magnetic fields could be widespread in those early type stars that have subsurface convection. This type of surface magnetism could be responsible for photometric variability and play a role in X-ray emission and wind clumping.
description: Accepted for publication in A&A
Examining the role of social capital in women-led grassroots community action in Villa El Salvador, Peru
Creators: name: Krieg, Brigette
Publisher: name: Social Work
Year: 2004

description: Bibliography: p. 155-160
description: Some pages are in colour.
description: Community development is still a relatively untouched field both professionally and academically. As a profession, community development workers are still trying to understand what their role is in terms of best practices for themselves, the agency they represent and most importantly, the community they are working for. Academically, community development professionals can not rely on current research for guidance. The existing literature is marred by conflicting findings and the inability to reach agreed upon definitions of the major constructs of community development. There has been a wealth of research completed that documents the challenge in reaching agreed upon definitions of the most basic tenants of community development theory such as participation, empowerment and even community. However, very few have examined the current trends of community development from the perspective of the local people for whom professionals and academics are supposed to be representing. Using a grounded theory methodology, this study looks at the concept of social capital from the perspective of women involved in grassroots community action in Villa El Salvador, Peru. The unique experience of seven local leaders was shared though the use of in-depth interviews. The information gathered was used to locally define the current community development buzzwords, namely social capital, and establish its role in women-led grassroots community development initiatives. Through the grounded theory process three categories emerged from the data. These categories were: foundation for social capital, framework for community action and factors effecting sustainability. These categories provided the basis for two models for community development that relies on a strong foundation of social capital in order to begin and sustain grassroots community initiatives. The categories also examine from a local perspective the factors that affect the sustainability of community development efforts and speak to the importance of shared definition of the major constructs in the field of community development. The study concludes by examining the findings through the lens of existing literature, its contribution to social work, academically and professionally, and implications for future research.
Afrodacarellus concavus Hurlbutt 1974
Creators: name: Castilho, Raphael C.
name: De Moraes, Gilberto J.
name: Halliday, Bruce
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Rhodacaridae
Afrodacarellus
Afrodacarellus concavus

description: 05. Afrodacarellus concavus Hurlbutt, 1974
 Afrodacarellus concavus Hurlbutt, 1974: 596.
TYPE DEPOSITORY: United States National Museum of Natural History Acari Collection, Beltsville, Maryland, USA.
 TYPE LOCALITY AND HABITAT: Tanzania, summit of Mount Bondwa, Uluguru Mountains, [Morogoro], alt. 2120 m, 1 May 1968, in humus and lichens under Philippia [Ericaceae].
description: Published as part of Castilho, Raphael C., De Moraes, Gilberto J. & Halliday, Bruce, 2012, 3471, pp. 1-69 in Zootaxa 3471 on page 21
Embedding theorems for harmonic multifunctional spaces on R^n+1
Creators: name: Arsenovic, Milos
name: Shamoyan, Romi F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42 B 15

description: We introduce and study properties of certain new multifunctional harmonic spaces in the upper halfspace.We prove several sharp embedding theorems for such multifunctional spaces,these results are new even in the case of a single function.
description: 15 pages
Návrh inovovanej architektúry metroclustra s ohľadom na vplyv IoT dátového toku rozsiahlej sieťovej infraštruktúry na báze analýzy parametrov metroclastra v reálnom čase
Creators: name: Kalamen Igor
name: Jamrich Marián
name: Haluška Andrej
name: Jančo Rastislav
name: Rastislav, Krbaťa
name: Gulášová Anna
name: Minárik Michal
name: Martin, Turan
name: Lukáčik Ondrej
name: Krištofík Daniel
name: Hamran Marek
Publisher: name: Zenodo
Year: 2021
Subjects: SANET
Metrocluster
Dátové centrá
Sieťová infraštruktúra
Data centers
Network infrastructure

description: Cieľom dokumentu je popísať návrh inovovanej architektúry metroclustra. Dokument je výstupom projektu Výskum v sieti SANET a možnosti jej ďalšieho využitia a rozvoja, kód projektu v ITMS: 313011W988 v rámci míľnika 2 Návrh inovovanej architektúry metroclustra s ohľadom na vplyv IoT dátového toku rozsiahlej sieťovej infraštruktúry na báze analýzy parametrov metroclustra v reálnom čase.
description: Acknowledgment: This publication was created thanks to support under the Operational Program Integrated Infrastructure for the project: Research in the SANET network and the possibility of its further use and development, project code in ITMS: 313011W988, which is co-financed by the European Regional Development Fund.
description: {"references": ["Kalamen Igor, Jamrich Mari\u00e1n, Mo\u0161ko Daniel a kol. (2021): Formul\u00e1cia hypot\u00e9z testovania a pr\u00edprava testovac\u00edch prostred\u00ed pre komunik\u00e1ciu IoT zariaden\u00ed a metroclustra v prostred\u00ed rozsiahlej sie\u0165ovej infra\u0161trukt\u00fary modelovej siete SANET, SF\u00c9RA, .a.s., Bratislava, Slovakia (ISBN 978-80-89778-03-4)"]}
Suppression of the Melting Line in a Weakly Disordered Flux-line System
Creators: name: Menon, Gautam I.
name: Ravikumar, G.
name: Higgins, M. J.
name: Bhattacharya, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: An analytic formula describing the suppression of the equilibrium melting line by quenched point pinning disorder is compared to data from ac susceptibility and magnetization measurements in the mixed phase of the layered dichalcogenide low T_c superconductor 2H-NbSe_2. This material exhibits a sharp peak effect in the critical current close to the upper critical field H_c2(T). Arguing that the disorder-suppressed melting line in this system is to be identified with the locus of peak positions of the critical current as magnetic field and temperature are varied, we demonstrate that this formula provides a remarkably accurate fit to the experimental data over three orders of magnitude in magnetic field.
description: 14 pages, single column, 4 figures
Fluid orientation on tabletop displays: supporting co-located collaboration
Creators: name: Kruger, Russell
Publisher: name: University of Calgary
Year: 2004

description: Bibliography: p. 142-153
description: Tabletop displays represent one new technology intended to support face-to-face collaboration. An issue of particular importance for tabletop displays is orientation: since individuals may sit at different sides of the display, collaborators do not necessarily share a common view of the workspace. To investigate the role of orientation in tabletop collaboration, I present an observational study of collaboration over a traditional table. An analysis of this study reveals three major roles that orientation plays in tabletop collaboration: comprehension, coordination, and communication. Based on these roles of orientation, I present a fluid tabletop rotation technique, Rotate 'N Translate (RNT), that provides integral control of rotation and translation using a single touch-point for input. Lastly, I present an evaluation comparing RNT to the standard technique that separates control of rotation and translation. Results of this study indicate RNT better supports the communicative and comprehensive roles of orientation, without sacrificing support for coordination.
Semantic Communication with Probability Graph: A Joint Communication and Computation Design
Creators: name: Zhao, Zhouxiang
name: Yang, Zhaohui
name: Pham, Quoc-Viet
name: Yang, Qianqian
name: Zhang, Zhaoyang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we present a probability graph-based semantic information compression system for scenarios where the base station (BS) and the user share common background knowledge. We employ probability graphs to represent the shared knowledge between the communicating parties. During the transmission of specific text data, the BS first extracts semantic information from the text, which is represented by a knowledge graph. Subsequently, the BS omits certain relational information based on the shared probability graph to reduce the data size. Upon receiving the compressed semantic data, the user can automatically restore missing information using the shared probability graph and predefined rules. This approach brings additional computational resource consumption while effectively reducing communication resource consumption. Considering the limitations of wireless resources, we address the problem of joint communication and computation resource allocation design, aiming at minimizing the total communication and computation energy consumption of the network while adhering to latency, transmit power, and semantic constraints. Simulation results demonstrate the effectiveness of the proposed system.
description: 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall), Hong Kong, 2023
Superradiance in spin-$J$ particles: Effects of multiple levels
Creators: name: Lin, G. -D.
name: Yelin, S. F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the superradiance dynamics in a dense system of atoms each of which can be generally a spin-$j$ particle with $j$ an arbitrary half-integer. We generalize Dicke's superradiance point of view to multiple-level systems, and compare the results based on a novel approach we have developed in {[}Yelin \textit{et al.}, arXiv:quant-ph/0509184{]}. Using this formalism we derive an effective two-body description that shows cooperative and collective effects for spin-$j$ particles, taking into account the coherence of transitions between different atomic levels. We find that the superradiance, which is well-known as a many-body phenomenon, can also be modified by multiple level effects. We also discuss the feasibility and propose that our approach can be applied to polar molecules, for their vibrational states have multi-level structure which is partially harmonic.
description: 11 pages, 7 figures
Prevention of Wormhole Attack in Wireless Sensor Network
Creators: name: Buch, Dhara Hitarth
name: Jinwala, Devesh
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Ubiquitous and pervasive applications, where the Wireless Sensor Networks are typically deployed, lead to the susceptibility to many kinds of security attacks. Sensors used for real time response capability also make it difficult to devise the resource intensive security protocols because of their limited battery, power, memory and processing capabilities. One of potent form of Denial of Service attacks is Wormhole attack that affects on the network layer. In this paper, the techniques dealing with wormhole attack are investigated and an approach for wormhole prevention is proposed. Our approach is based on the analysis of the two-hop neighbors forwarding Route Reply packet. To check the validity of the sender, a unique key between the individual sensor node and the base station is required to be generated by suitable scheme.
description: 14 pages; International Journal of Network Security & Its Applications Year: 2011 Vol: 3 Issue: 5
Quasi-instantaneous consistency observation: Experimental data and source code
Creators: name: Ottmann, Jenny
Publisher: name: Zenodo
Year: 2023
Subjects: Memory Forensics
Memory Acquisition
Consistency
Live system memory capture
Quasi-instantaneous consistency

description: This archive contains the memory dumps and analysis results created for the paper "As if Time Had Stopped - Checking Memory Dumps for Quasi-Instantaneous Consistency", presented at DFRWS USA 2023. The source code used in the experiments and scripts for the analysis are included as well. The folder Scripts contains the scripts used for the analysis of the memory dumps. A detailed description of the scripts (scriptsinfo.txt) is included in the folder. The folder Src contains the source code of the pivot program, and instructions on how it can be used (srcinfo.txt). For more details please refer to the paper. The memory dumps are contained in individual zip files in the folders Frozen and Live: The folder Frozen contains the memory dumps (frozen_quasidumps.zip) created with the snapshot mechanism of the VM and high activity. Additionally, heap dumps created from the memory dump are included (file name ends with "-heap") for compatibility with the current implementation of the quasiCheckDump.py script. The analysis results are contained under Frozen/Results. The folder Live contains the memory dumps created with LiME with low (Folder: Low; Memory dumps: livelow_quasidumps.zip) and high (Folder: High; Memory dumps: livehigh_quasidumps.zip) activity. Additionally, the heap dumps created after the memory dump has been taken are included (file name ends with "-heap"). Details describing why this is necessary can be found in the paper. The analysis results are contained under Live/Low/Results and Live/High/Results. In the latter folder missingvma.txt indicates the single memory dump for which one of the analysis steps failed. The Results folders always contain: The heap of the pivot program extracted from the memory dump. A csv file that summarizes the number of found counter (quasi-instantaneous) and VMA inconsistencies per memory dump. csv files with the results of intermediate steps. txt files with detailed tool output. More details on the files are described in scriptsinfo.txt in the folder Scripts.
U boson searches at KLOE
Creators: name: Archilli, F.
name: Babusci, D.
name: Badoni, D.
name: Balwierz, I.
name: Bencivenni, G.
name: Bini, C.
name: Bloise, C.
name: Bocci, V.
name: Bossi, F.
name: Branchini, P.
name: Budano, A.
name: Bulychjev, S. A.
name: Campana, P.
name: Capon, G.
name: Ceradini, F.
name: Ciambrone, P.
name: Czerwinski, E.
name: Dane', E.
name: De Lucia, E.
name: De Robertis, G.
name: De Santis, A.
name: De Zorzi, G.
name: Di Domenico, A.
name: Di Donato, C.
name: Domenici, D.
name: Erriquez, O.
name: Fanizzi, G.
name: Felici, G.
name: Fiore, S.
name: Franzini, P.
name: Gauzzi, P.
name: Giovannella, S.
name: Gonnella, F.
name: Graziani, E.
name: Happacher, F.
name: Hoistad, B.
name: Iarocci, E.
name: Jacewicz, M.
name: Johansson, T.
name: Kulikov, V.
name: Kupsc, A.
name: Lee-Franzini, J.
name: Loddo, F.
name: Martemianov, M.
name: Martini, M.
name: Matsyuk, M.
name: Messi, R.
name: Miscetti, S.
name: Morello, G.
name: Moricciani, D.
name: Moskal, P.
name: Nguyen, F.
name: Passeri, A.
name: Patera, V.
name: Longhi, I. Prado
name: Ranieri, A.
name: Santangelo, P.
name: Sarra, I.
name: Schioppa, M.
name: Sciascia, B.
name: Sciubba, A.
name: Silarski, M.
name: Taccini, C.
name: Tortora, L.
name: Venanzoni, G.
name: Versaci, R.
name: Wislicki, W.
name: Wolke, M.
name: Zdebik, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The existence of a secluded gauge sector could explain several puzzling astrophysical observations. This hypothesis can be tested at low energy e+e- colliders such as DAPHNE. Preliminary results obtained with KLOE data and perpectives for the KLOE-2 run, where a larger data sample is expected, are discussed.
description: 8 pages, 5 figures
Afrodacarellus lubalensis
Creators: name: Castilho, Raphael C.
name: De Moraes, Gilberto J.
name: Halliday, Bruce
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Rhodacaridae
Afrodacarellus
Afrodacarellus lubalensis

description: 13. Afrodacarellus lubalensis (Loots, 1969)
 Afrogamasellus lubalensis Loots, 1969a: 79.
 Afrogamasellus (Latogamasellus) lubalensis.— Karg, 1979: 206; Karg, 2003b: 27.
 Afrodacarellus lubalensis.— new combination.
TYPE DEPOSITORY: Museu do Dundo, Dundo, Angola.
TYPE LOCALITY AND HABITAT: Angola, Tshihumbwe River, branch of the Lubalo River, Camaxilo, Lunda, 6 July 1962, in forest soil.
description: Published as part of Castilho, Raphael C., De Moraes, Gilberto J. & Halliday, Bruce, 2012, 3471, pp. 1-69 in Zootaxa 3471 on pages 22-23
Contemporary political risk analysis and management: civil society and sustainable development
Creators: name: Kulas, Darko Pavo
Publisher: name: Haskayne School of Business
Year: 2004

description: Bibliography: p. 157-164
description: With the growth in power and relevance of non-governmental organisations, a contemporary political risk (CPR) has emerged for firms in the extractive industries. Using the results of a cross case study review and insights from various literatures, this paper seeks to identify the nature of CPR, develop an analytical framework for CPR assessment and identify and evaluate implicated CPR management strategies.
Afrodacarellus machadoi
Creators: name: Castilho, Raphael C.
name: De Moraes, Gilberto J.
name: Halliday, Bruce
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Rhodacaridae
Afrodacarellus
Afrodacarellus machadoi

description: 16. Afrodacarellus machadoi (Loots, 1969)
 Afrogamasellus machadoi Loots, 1969a: 65.
 Afrodacarellus machadoi.— Hurlbutt, 1974: 598.
 Afrogamasellus (Foliogamasellus) machadoi.— Karg, 1977: 344; Karg & Schorlemmer, 2009: 66.
TYPE DEPOSITORY: Museu do Dundo, Dundo, Angola.
TYPE LOCALITY AND HABITAT: Angola, by Tshihumbwe River, branch of the Lubalo River, Camaxilo, Lunda, 6 July 1962, in forest soil.
description: Published as part of Castilho, Raphael C., De Moraes, Gilberto J. & Halliday, Bruce, 2012, 3471, pp. 1-69 in Zootaxa 3471 on page 23
Constructing a one-solar-mass evolutionary sequence using asteroseismic data from \textit{Kepler}
Creators: name: Aguirre, V. Silva
name: Chaplin, W. J.
name: Ballot, J.
name: Basu, S.
name: Bedding, T. R.
name: Serenelli, A. M.
name: Verner, G. A.
name: Miglio, A.
name: Monteiro, M. J. P. F. G.
name: Weiss, A.
name: Appourchaux, T.
name: Bonanno, A.
name: Broomhall, A. M.
name: Bruntt, H.
name: Campante, T. L.
name: Casagrande, L.
name: Corsaro, E.
name: Elsworth, Y.
name: Garcia, R. A.
name: Gaulme, P.
name: Handberg, R.
name: Hekker, S.
name: Huber, D.
name: Karoff, C.
name: Mathur, S.
name: Mosser, B.
name: Salabert, D.
name: Schonrich, R.
name: Sousa, S. G.
name: Stello, D.
name: White, T. R.
name: Christensen-Dalsgaard, J.
name: Gilliland, R. L.
name: Kawaler, S. D
name: Kjeldsen, H.
name: Houdek, G.
name: Metcalfe, T. S.
name: Molenda-Zakowicz, J.
name: Thompson, M. J.
name: Caldwell, D. A.
name: Christiansen, J. L.
name: Wohler, B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Asteroseismology of solar-type stars has entered a new era of large surveys with the success of the NASA \textit{Kepler} mission, which is providing exquisite data on oscillations of stars across the Hertzprung-Russell (HR) diagram. From the time-series photometry, the two seismic parameters that can be most readily extracted are the large frequency separation ($Δν$) and the frequency of maximum oscillation power ($ν_\mathrm{max}$). After the survey phase, these quantities are available for hundreds of solar-type stars. By scaling from solar values, we use these two asteroseismic observables to identify for the first time an evolutionary sequence of 1-M$_\odot$ field stars, without the need for further information from stellar models. Comparison of our determinations with the few available spectroscopic results shows an excellent level of agreement. We discuss the potential of the method for differential analysis throughout the main-sequence evolution, and the possibility of detecting twins of very well-known stars.
description: 17 pages, 4 figures, accepted in ApJL
The Left-Right asymmetry of top quarks in associated top-charged Higgs bosons at the LHC as a probe of the tan$β$ parameter
Creators: name: Baglio, J.
name: Beccaria, M.
name: Djouadi, A.
name: Macorini, G.
name: Mirabella, E.
name: Orlando, N.
name: Renard, F. M.
name: Verzegnassi, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Many extensions of the Standard Model involve two Higgs doublet fields to break the electroweak symmetry, leading to the existence of three neutral and two charged Higgs particles. In particular, this is the case of the Minimal Supersymmetric extension of the Standard Model, the MSSM. A very important parameter is $\tanβ$ defined as the ratio of the vacuum expectation value of the two Higgs doublets. In this paper we focus on the left-right asymmetry in the production of polarised top quarks in association with charged Higgs bosons at the LHC. This quantity allows for a theoretically clean determination of $\tanβ$. In the MSSM, the asymmetry remains sensitive to the strong and electroweak radiative corrections and, thus, to the superparticle spectrum. Some possible implications of these results are discussed.
Cholinergic modulation of hippocampal CA1 pyramidal neuron intrinsic excitability
Creators: name: Kuzmiski, Joseph Brent
Publisher: name: University of Calgary
Year: 2004

description: Bibliography: p. 176-212
description: Some pages are in colour.
description: Cholinergic stimulation in the hippocampus increases neuronal excitability that contributes to rhythmic activity and seizures. In this dissertation, I used the whole-cell patch clamp techniques in hippocampal CA 1 pyramidal neurons to study the current underlying the cholinergic-dependent plateau potential (PP). When combined with muscarinic stimulation, depolarizing command potentials to evoke Ca²⁺ influx elicited a prolonged inward tail current (Itail). Itail had an extrapolated reversal potential of -20 m V and was abolished by chelating [Ca²⁺]i with BAPTA or removal of [Na+]0 Soluble guanylate cyclase (sGC) inhibitors depressed Itail whereas blocking cGMP specific phosphodiesterase enhanced Itail. Cyclic-nucleotide gated (CNG) channel blockers reversibly depressed Itail, but PKG inhibition had no effect. Thus, I propose that Ca²⁺ influx combined with muscarinic stimulation activates sGC and increases cGMP levels, leading to CNG channel activation and generation of the PP. R-type Ca²⁺ spikes are important in generating dendritic Ca²⁺ transients and burst firing. I show that R-type Ca²⁺ spikes are enhanced by activation of Ml/M3 muscarinic receptors. This enhancement requires increased [Ca²⁺]i and the activation of a Ca²⁺/calmodulin-dependent protein kinase II pathway. Enhanced R-type Ca²⁺ spikes could repetitively fire at theta frequencies (~5-10 Hz) and could contribute to spike generated DAPs and PPs. Blocking R-type Ca²⁺ channels depressed carbachol-induced field potential theta oscillations, implying that enhanced R-type Ca²⁺ spikes play a role in theta current generation. The sensitivity of the PP to the antiepiletic topiramate was investigated. In current clamp, PPs were depressed by therapeutic concentrations of topiramate. Conversely, ItailS evoked in voltage clamp were not depressed but significantly longer voltage steps were required to elicit Itail indicating that the Ca²⁺entry trigger for evoking PPs was depressed. Topiramate had no effect on Ca²⁺ spikes in control conditions, however Ca²⁺ spikes after muscarinic stimulation were reduced. Carbachol enhances R-type Ca²⁺ spikes; therefore, the effect of topiramate was tested on R-type Ca²⁺ channels. Carbachol-enhanced R-type Ca²⁺ spikes were depressed by topiramate. Topiramate also depressed currents mediated by Cav2.3 Ca²⁺ channels expressed in tsA-201 cells. Thus, I have found that topiramate reduces seizure activity in hippocampal neurons through a novel inhibitory action of R-type CA²⁺channels.
Afrodacarellus minutus Hurlbutt 1974
Creators: name: Castilho, Raphael C.
name: De Moraes, Gilberto J.
name: Halliday, Bruce
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Rhodacaridae
Afrodacarellus
Afrodacarellus minutus

description: 17. Afrodacarellus minutus Hurlbutt, 1974
 Afrodacarellus minutus Hurlbutt, 1974: 609.
TYPE DEPOSITORY: United States National Museum of Natural History Acari Collection, Beltsville, Maryland, USA.
TYPE LOCALITY AND HABITAT: Tanzania, in the upper part of a valley between the Morogoro Regional Forestry Office and Mount Lupanga, near Morogoro, alt. 1150 m, 22 May 1968, on leaves and twigs under clump of trees.
description: Published as part of Castilho, Raphael C., De Moraes, Gilberto J. & Halliday, Bruce, 2012, 3471, pp. 1-69 in Zootaxa 3471 on page 23
Cheating on quotas in OPEC: an exploratory study
Creators: name: Ayub, Syed Shazad
Publisher: name: University of Calgary
Year: 2004

description: Bibliography: p. 95-97
description: OPEC reviews production quotas at least twice a year. The quotas are revised after looking at the current market conditions and the existing price and they are set after taking into consideration a specific target price band. OPEC expects its members to follow the assigned quotas. However this does not always happen. In fact during most of its history, total production levels have been greater then the total member quotas i.e. most or all OPEC members have been "cheating" on their quotas. Why do OPEC members cheat on their production quotas when the production quotas have, presumably, been set as to maximize OPEC profits? Are there some specific factors which affect a country's decision to over-produce? Is Saudi Arabia still using the tit-for-tat strategy as an enforcement mechanism to maintain cartel discipline? These are some of the questions that this thesis will address. The application of the economic theory of oligopolies to OPEC is reviewed. The analysis then proceeds to use regression analysis to examine possible influences on the percentage differences between actual output and quotas for 10 of the 11 OPEC members, using annual data from 1987 to 2001.
MPEC 2023-H50 : 2023 HO
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 HO

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
CALYPSO: a method for crystal structure prediction
Creators: name: Wang, Yanchao
name: Lv, Jian
name: Zhu, Li
name: Ma, Yanming
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have developed a software package CALYPSO (Crystal structure AnaLYsis by Particle Swarm Optimization) to predict the energetically stable/metastable crystal structures of materials at given chemical compositions and external conditions (e.g., pressure). The CALYPSO method is based on several major techniques (e.g. particle-swarm optimization algorithm, symmetry constraints on structural generation, bond characterization matrix on elimination of similar structures, partial random structures per generation on enhancing structural diversity, and penalty function, etc) for global structural minimization from scratch. All of these techniques have been demonstrated to be critical to the prediction of global stable structure. We have implemented these techniques into the CALYPSO code. Testing of the code on many known and unknown systems shows high efficiency and high successful rate of this CALYPSO method [Wang et al., Phys. Rev. B 82 (2010) 094116][1]. In this paper, we focus on descriptions of the implementation of CALYPSO code and why it works.
description: accepted in Computer Physics Communications
Coping with a spoiled self: a grounded theory of the experiences of Asian youth in the criminal justice system in Canada
Creators: name: Kwok, Siu-Ming
Publisher: name: Social Work
Year: 2005

description: Bibliography: p. 198-219
description: Despite the increasing concern over Asian delinquency in Canada, there is a paucity of research in this area. This is particularly true regarding Asian youth in the criminal justice system. In light of the lack of research on Asian youth in the criminal justice system, the purpose of this study is to generate a theoretical model in order to understand the experiences of Asian youth in the criminal justice system and provide a usable theory for social workers to work with this population. This goal can be accomplished through the exploration of the main research question: How do Asian youth cope with their experiences in the criminal justice system? Constructivist grounded theory was employed to gather information from 15 research participants through face-to-face individual interview in Calgary, Canada. Data was analyzed as suggested in the analytical procedure of grounded theory with an emphasis on the meaning provided by the research participants. Coping with a spoiled self was identified as the core category. It was discovered that the experiences of Asian youth in the criminal justice system is a process of coping with a discredited identify conferred upon them by society. The result of this study has both confirmed some of our long-held beliefs and dispelled other misconceptions. The result of this study provides further support for the theories that asserted that negative conception of self is one of the key factors for offending, and systemic discrimination against Asian youth exists in the criminal justice system. Contrary to general belief, the process of leaving an Asian youth gang is less difficult than expected; and the research participants are committed to conventional norms of society, regardless of their stage of criminal involvement. Moreover, it is found that it was the Asian parents who took the lead in seeking help outside the family even though they do not speak English. Further, the research participants regarded the qualities of caring, culturally sensitivity and knowledgeable to gang culture are more important than the ethnicity of a social worker. These findings would have implications for theoretical development, social work practice, social work training, and social work research in relation to helping Asian youth in the criminal justice system.
Signatures of Mode-Resolved, Nonlocal Electron-Phonon Coupling in Two-Dimensional Spectroscopy
Creators: name: Qu, Sheng
name: Sharma, Vishal K.
name: Geuchies, Jaco
name: Grechko, Maksim
name: Bonn, Mischa
name: Pientka, Falko
name: Kim, Heejae
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electron-phonon coupling (EPC) is foundational in condensed matter physics, determining intriguing phenomena and properties in both conventional and quantum materials. In this manuscript, we propose and demonstrate a novel two dimensional (2D) EPC spectroscopy which allows for direct extraction of EPC matrix elements for specific phonon modes and different electron energies, simultaneously. Using this technique, we are able to measure the electron-energy dependence of the EPC strength for individual phonon modes. This capability allows us to identify unique signatures distinguishing nonlocal Su-SchriefferHeeger (SSH)-type couplings from local Holstein-type couplings. In application to a methylammonium lead iodide (MAPI) perovskite, we find that two pronounced phonon modes at room temperature exhibit highly distinctive EPC behaviors, concerning strength, anisotropy, and temperature-dependence across the structural phase transition. Our approach paves the way for unraveling the microscopic origin of EPC, the change of the phonon-mode-specific EPC with external conditions, and phonon-mediated ultrafast control of condensed materials.
description: Main text: 24 pages, 4 figures, Supplementary material: 21 pages, 12 figures
Chemerin and Chemokine-like Receptor 1 Are Not Prognostic in Colorectal Carcinoma
Creators: name: Weber, Florian
name: Jung, Rudolf
name: Treeck, Oliver
name: Buechler, Christa
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: TNM staging, immunohistochemistry, survival, tumor recurrence
subject: 610 Medizin

description: Background/Aim: Colorectal carcinoma is a commonly diagnosed malignancy. The chemoattractant protein chemerin was shown to regulate immune response, angiogenesis, and cell migration and has a role in gastrointestinal cancers. Chemerin and its receptor chemokine-like receptor 1 (CMKLR1) are expressed in the colon and here, their diagnostic and prognostic value in colorectal carcinoma was examined. Patients and Methods: Chemerin and CMKLR1 protein were quantified by immunohistochemistry in tumor tissues of 86 patients with colorectal cancer. Associations with tumor stage, tumor grade, lymph node score, tumor recurrence, and survival were calculated. Results: Chemerin was not detectable in 12%, low expressed in 55%, medium expressed in 27%, and highly abundant in 7% of the tumors. CMKLR1 protein levels were low in 25%, medium in 70%, and high in 5% of the tumors. Chemerin protein expression was slightly induced in larger tumors of males. CMKLR1 protein expression was modestly higher in the tumors of patients with local and/or distal disease recurrence. CMKLR1 and chemerin protein in colorectal cancer tissues were not related to tumor grade or lymph node score. CD3, CD4, and CD8 protein expression did not correlate with chemerin or CMKLR1. Tumor chemerin and CMKLR1 protein levels were similar in survivors and non-survivors. Conclusion: In colorectal carcinoma, chemerin and CMKLR1 proteins are weakly associated with tumor stage and tumor recurrence. Levels of these proteins in colorectal carcinoma tissues are not connected with patients’ survival.
Development of diabetogenic T cells in NOD mice
Creators: name: Kwon, Hyok Joon
Publisher: name: University of Calgary
Year: 2004

description: Bibliography: p. 167-199
description: Insulin dependent diabetes mellitus (IDDM), type 1 diabetes, results from the destruction of pancreatic p cells by p cell-specific autoreactive T cells. Defects in negative selection in the thymus are thought to result in the failure to delete potential p cell-reactive T cells, contributing to the development of autoimmune diabetes. This possibility was investigated by comparing the deletion profile of CD4+CD8+ double positive (DP) thymocytes in NOD mice, a diabetes-prone animal model of IDDM, with that of diabetes-resistant strains of mice after anti-CD3 antibody treatment to trigger T cell activation. These investigations showed that immature NOD DP thymocytes had a comparatively lower activation threshold, resulting in efficient phosphorylation of ERK and JNK and efficient differentiation into CD69+CD3high DP thymocytes, and this property depended on the particular MHC class II haplotype of NOD mice (H-2g7). In NOD fetal thymic organ cultures (FTOC), single positive (SP) thymocytes can be efficiently generated from DP thymocytes, and these cells could induce diabetes when adoptively transferred into T cell deficient NOD.scid mice. These studies suggest that the low activation threshold of DP thymocytes in NOD mice results in inordinate positive selection, which ultimately contributes to the development of autoreactive diabetogenic T cells. Cytotoxic T lymphocyte antigen-4 (CTLA-4) is known as a negative regulator of T cell activation in the periphery, but its role in the development of thymocytes is poorly understood. Antibody-mediated blockade of CTLA-4 in NOD FTOC prevented the efficient deletion of DP thymocytes. In a second series of investigations using NOD FTOC, it was shown that blockade of CTLA-4 prevented the efficient deletion of DP thymocytes. Expression of CTLA-4 in NOD DP thymocytes was found to increase after TCR engagement, and blockade of CTLA-4 suppressed the activation of DP thymocytes, resulting in the inhibition of: 1) CD69 expression, 2) activation-induced CTLA-4 expression, 3) phosphorylation of ERK, and 4) deletion of DP thymocytes after TCR engagement. The number of DP thymocytes in CTLA-4 deficient C57BL/6 FTOC was significantly higher than that of littermate controls. These results suggest that CTLA-4- mediated positive signaling acts in concert with strong TCR stimulation to cause deletion of DP thymocytes in NOD and other strains of mice. This mechanism may be involved in the complete deletion of DP thymocytes bearing very high affinity/avidity TCR for self­peptide/MHC complex in T cell development, resulting in the peripheral tolerance.
Afrodacarellus lupangaensis Hurlbutt 1974
Creators: name: Castilho, Raphael C.
name: De Moraes, Gilberto J.
name: Halliday, Bruce
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Rhodacaridae
Afrodacarellus
Afrodacarellus lupangaensis

description: 15. Afrodacarellus lupangaensis Hurlbutt, 1974
 Afrodacarellus lupangaensis Hurlbutt, 1974: 602.
TYPE DEPOSITORY: unknown.
TYPE LOCALITY AND HABITAT: Tanzania, base of Mount Lupanga, Uluguru Mountains, Morogoro, alt. 1350 m, 30 October 1966, in leaf litter and humus from regenerated rain forest.
description: Published as part of Castilho, Raphael C., De Moraes, Gilberto J. & Halliday, Bruce, 2012, 3471, pp. 1-69 in Zootaxa 3471 on page 23