cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Impacts of Unification and Civilianization on the Culture of the Canadian Forces, 1968-1993
Creators: name: Bryson, Rachael
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Military Studies
subject: Canadian Forces
subject: Military
subject: Culture

description: In 1993 the Canadian Forces faced a crisis that reached across all levels of the institution when the events of the Canadian Airborne Regiment in Somalia became public knowledge. The report forthcoming from the civilian Commission of Inquiry into the Deployment of Canadian Forces to Somalia uncovered a deeply flawed organization, rife with personnel unfit for duty, a dearth of leadership, and lacking organizational direction. One of the major questions that arose within public and academic discourse following the release of the report was how the Canadian Forces had reached this point of crisis. This thesis argues that two major institutional changes- unification in 1968 and civilianization in 1972- had profoundly negative impacts on the culture of the Canadian Forces, and are key to understanding the military’s fall from grace. Using the theory of sociological neo-institutionalism to understand change within military organizations, this thesis will demonstrate a strong correlation between unification, civilianization, and the cultural changes experienced by the Canadian Forces during this period. Leadership will be used as a qualitative indicator for measuring the changes in the military’s culture.
The Rise-Time of Normal and Subluminous Type Ia Supernovae
Creators: name: Gonzalez-Gaitan, S.
name: Conley, A.
name: Bianco, F. B.
name: Howell, D. A.
name: Sullivan, M.
name: Perrett, K.
name: Carlberg, R.
name: Astier, P.
name: Balam, D.
name: Balland, C.
name: Basa, S.
name: Fouchez, D.
name: Fourmanoit, N.
name: Graham, M. L.
name: Guy, J.
name: Hardin, D.
name: Hook, I. M.
name: Lidman, C.
name: Pain, R.
name: Palanque-Delabrouille, N.
name: Pritchet, C. J.
name: Regnault, N.
name: Rich, J.
name: Ruhlmann-Kleider, V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We calculate the average stretch-corrected rise-time of type Ia supernovae (SNe Ia) in the Supernova Legacy Survey. We use the aggregate lightcurves of spectroscopic and photometrically identified SNe Ia to fit the rising part of the lightcurve with a simple quadratic model. We obtain a lightcurve shape corrected, i .e. stretch-corrected, fiducial rise-time of 17.02^{+0.18}_{-0.28} (stat) days. The measured rise-time differs from an earlier finding by the SNLS (Conley et al. 2006) due to the use of different SN Ia templates. We compare it to nearby samples using the same methods and find no evolution in the early part of the lightcurve of SNe Ia up to z=1. We search for variations among different populations, particularly subluminous objects, by dividing the sample in stretch. Bright and slow decliners (s>1.0) have consistent stretch-corrected rise-times compared to fainter and faster decliners (0.8
description: 13 pages, 13 figures
MEMS-based Downhole Inertial Navigation Systems for Directional Drilling Applications
Creators: name: Wang, Zhen Hua
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Engineering--Electronics and Electrical
subject: Inertial Navigation Systems
subject: Measurement While Drilling
subject: Oil Drilling
subject: Downhole Instrumentation
subject: Wireless Telemetry

description: Conventional methods in horizontal drilling processes incorporate magnetic surveying techniques for determining the position and the attitude of the bottomhole assembly. Magnetic surveying results in higher costs and relatively large surveying errors. Micro-Electromechanical Systems (MEMS)-based inertial navigation has been proposed as an alternative to magnetometer-based downhole surveying due to its light weight, small size and low power consumption. The present study explores the feasibility of utilizing MEMS-based inertial measurement unit as a surveying sensor, in conjunction with a Rotary In-Drilling Alignment (R-IDA) method for measurement-while-drilling (MWD) processes. A novel, downhole-mountable, autonomous and cost-effective apparatus to practically implement R-IDA has been proposed and its capabilities to reduce the azimuth error have been assessed. Furthermore, this study discusses the concept of wireless data transmission within drill pipes downhole. It is shown that wireless telemetry inside the drill pipe is potentially capable of transmitting at a relatively high rate with low power consumption.
Social Requirements for Virtual Organization Breeding Environments
Creators: name: Świerzowicz, Jan
name: Picard, Willy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: The creation of Virtual Breeding Environments (VBE) is a topic which has received too little attention: in most former works, the existence of the VBE is either assumed, or is considered as the result of the voluntary, participatory gathering of a set of candidate companies. In this paper, the creation of a VBE by a third authority is considered: chambers of commerce, as organizations whose goal is to promote and facilitate business interests and activity in the community, could be good candidates for exogenous VBE creators. During VBE planning, there is a need to specify social requirements for the VBE. In this paper, SNA metrics are proposed as a way for a VBE planner to express social requirements for a VBE to be created. Additionally, a set of social requirements for VO planners, VO brokers, and VBE members are proposed.
description: 10 pages, 2 figures
Role of SWI/SNF chromatin remodeling complex in melanoma development
Creators: name: Lin, Hanyang
Publisher: name: University of British Columbia
Year: 2010

description: Human cutaneous malignant melanoma is an aggressive form of skin cancer, for its ability to metastasize rapidly and its resistance to conventional radiotherapy and chemotherapy. The mammalian SWI/SNF complex mediates ATP-dependent chromatin remodeling processes that are critical for transcriptional regulation, control of cellular processes, and involvement in DNA repair. Therefore, aberrant expression of SWI/SNF chromatin remodeling complex is involved in cancer development. To investigate the role of SWI/SNF complex in the development of melanoma, we used tissue microarray technology and immunohistochemistry to evaluate the expression of SNF5, the common core subunit, and BRG1, the ATPase subunit, in melanocytic lesions at different stages, and we analyzed the correlation between SNF5 and BRG1 expression and clinicopathologic variables and patient survival. In addition, we also investigated the role of SNF5 in nucleotide excision repair (NER), a type of DNA repair mechanism that removes ultraviolet-induced DNA lesions. We found that reduced SNF5 expression is significantly associated with melanoma progression and a worse patient survival, and that SNF5 is an independent prognostic factor for human melanoma. Furthermore, we showed that downregulation of SNF5 protein level in melanoma cell lines enhanced chemoresistance of melanoma cells. This suggests that SNF5 plays an important role in melanomagenesis and may serve as a promising prognostic marker for melanoma. BRG1 expression, on the other hand, was found to be increased in primary and metastatic melanoma compared to dysplastic nevi. Knockdown of BRG1 in human melanoma cell lines reduced cell proliferation due to G1 phase arrest. This suggests that BRG1 might play a role in the initiation stage of melanomagenesis. As for the role of SWI/SNF complex in NER, our current observation demonstrated that in human keratinocytes, SNF5 is required for efficient removal of CPD and is required for UV-induced histone acetylation. In human melanoma cells, SNF5 does not seem to play a major role in NER, for it is not required for removal of CPD and UV-induced global chromatin relaxation. Taken together, these data implicate that SWI/SNF complex plays an essential role in melanoma development and may serve as a promising therapeutic target for melanoma.
Validation of an ICD-10 coded case definition for the identification of patients diagnosed with sepsis and severe sepsis using administrative data
Creators: name: Jolley, Rachel
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Epidemiology
subject: Health Care Management
subject: Medicine and Surgery
subject: Sepsis
subject: Administrative Data
subject: ICD-10

description: Background: We assessed the validity of existing ICD case definitions used to identify sepsis in administrative data and validated and optimized an existing ICD-10-CA coding algorithm to identify patients diagnosed with sepsis. Methods: Standard systematic review methodology was applied to assess the validity of ICD case definitions for sepsis. The CIHI ICD-10-CA coding algorithm for sepsis was validated and optimized using a randomly selected cohort of ICU and non-ICU patients. Sensitivity (Sn), specificity (Sp), positive predictive value (PPV), and negative predictive value (NPV) were calculated. Results: Twelve studies were identified in the systematic review with a range of diagnostic accuracy reported indicating that sepsis is highly under-coded. We increased the accuracy of the CIHI ICD-10-CA coding algorithm for sepsis (Sn: 71.9%, NPV: 66.6%) and severe sepsis (Sn: 65.1%, NPV: 70.1%) while slightly decreasing Sp and PPV. Conclusions: Sepsis is highly under-coded in administrative data. The new definition has a much higher sensitivity and negative predictive value.
Nodal domain partition and the number of communities in networks
Creators: name: He, Bian
name: Gu, Lei
name: Zhang, Xiao-Dong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: It is difficult to detect and evaluate the number of communities in complex networks, especially when the situation involves with an ambiguous boundary between the inner- and inter-community densities. In this paper, Discrete Nodal Domain Theory could be used to provide a criterion to determine how many communities a network would have and how to partition these communities by means of the topological structure and geometric characterization. By capturing the signs of certain Laplacian eigenvectors we can separate the network into several reasonable clusters. The method leads to a fast and effective algorithm with application to a variety of real networks data sets.
description: 18 pages, 8 figures, 48 references
Vorschau auf Heft 10 / Impressum
Creators: name: Redaktion, Die
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 9 (1999): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
"Beneath every history, another history:" History, Memory, and Nation in Hilary Mantel's Wolf Hall and Bring Up the Bodies
Creators: name: Baker, Theresa Rae
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Literature--English
subject: Hilary
subject: Mantel
subject: Contemporary
subject: Fiction
subject: Historical
subject: Tudor
subject: Cromwell

description: In the years since I began this degree, Hilary Mantel has risen from obscurity to ubiquity. The many years she has toiled away as author, reviewer, and journalist have left behind an impressive collection of novels, short stories, countless reviews, sharp-witted critiques on her society, and a memoir. In each piece of her writing, Mantel makes one thing clear: she is a political animal. In Wolf Hall and Bring Up the Bodies, Hilary Mantel uses historical fiction to call for a new perspective not only on the saintly Thomas More as a flawed, tragic hero, but also on Anne Boleyn as a tragic scapegoat, while at the same time laying the foundation for seeing Cromwell’s fall as that of another tragic hero, the victim of a nation that slips back into Medieval attitudes and practices, mirroring Mantel’s critique of her own nation’s similar slip into archaic attitudes and practices. Because of Mantel’s use of myth in these two novels, I begin with an examination of magic and myth in the British context, relying heavily on the work of Keith Thomas. In order to understand the nature of history and its interaction with historical fiction, I explore how history has evolved from occupying the genre of literature to becoming a social science then, following the arguments of Hayden White, becoming once again a close cousin of literature because of its narrative structure. After establishing the original framework for historical fiction first set out by Georg Lukács, I then go on to explore more recent analyses of historical fiction, including Ann Rigney and Mantel herself. In order to better understand how early Tudor England can be considered a nation, I examine the different approaches—from Benedict Anderson and Eric Hobsbawm to Liah Greenfeld and Philip S. Gorski—to what a nation is and the history of how the idea of nation has evolved. Moving on from the theoretical framework, I focus on the major tragic characters of Mantel’s Cromwell novels: Sir Thomas More, Anne Boleyn, and Thomas Cromwell. Because of Mantel’s frequent use of ekphrasis, I deem it necessary to discuss some of the key portraits featured within the pages of her novels. Distinguishing Anne Boleyn from More and Cromwell is the absence of a verifiable portrait of her image. My research will contribute to the relatively small amount of critical scholarship— a recent search of MLA International Bibliography (29 Oct. 2014) produces nineteen entries for Mantel but, for example, three hundred and sixty for Ian McEwan—performed on the work of an author clearly, as indicated by her back-to-back Man Booker Prize wins for the novels in this study, receiving critical praise from well-established reviewers.
Auf den Spuren der Meroitischen Kultur
Creators: name: Hintze, Ursula
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 9 (1999): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
The Schema Theory of Depression: A Cross-Cultural Validation in a Canadian and an Egyptian Sample
Creators: name: Beshai, Shadi
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Psychology--Clinical
subject: cognitive model
subject: Depression
subject: cross-culture
subject: cognitive therapy

description: Depression is prevalent in all regions of the world. Population-based studies show that the lifetime prevalence of depression varies in different countries. The cognitive model of depression, which is the conceptual foundation for Cognitive-Behavioural Therapy, postulates that the thoughts of depressed individuals differ systematically from those of their non-depressed counterparts. These proposed differences have been validated among individuals of Western descent. Unfortunately, and despite the universal connotations of the cognitive model, the hypotheses generated by this model have seldom been tested among depressed individuals living outside the Western world. The study presented examined a number of hypotheses (e.g., negativity, exclusivity, severity, schema activation, and selective attention) among a group of depressed (n = 29) and non-depressed (n = 29) Egyptians. To this end, a number of self-report measures as well as an experimental attentional measure (the visual dot-probe) were used to test these hypotheses. The results were compared to a cultural control group of depressed (n = 35) and non-depressed (n = 38) Canadians (total N = 73). The results indicated that, in comparison to non-depressed Egyptians, depressed Egyptians harbored significantly more dysfunctional attitudes and negative thoughts about self and future, and significantly less positive thoughts about self. Contrary to predictions, depressed Egyptians and Canadians did not exhibit an attentional bias toward negative stimuli in comparison to non-depressed participants of both nations. Finally, Egyptians exhibited significantly more positive thoughts, and depressed Egyptians showed significantly higher positive attentional bias scores than their Canadian counterparts. These results, their implications, and the theoretical considerations of this research are further discussed.
In Pursuit of the Golden Mean: Experiences of Frontline Workers in the Mental Health System
Creators: name: Hincks, Crystal
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Criminology and Penology
subject: Public and Social Welfare
subject: Social Structure and Development
subject: Mental
subject: Health
subject: Addictions

description: Since deinstitutionalization began in the late 1970s, whereby thousands of psychiatric patients occupying asylums and hospitals were moved from institutional settings into the community, many of the problems in managing the care of these individuals have increased. Although it was anticipated that patients suffering from mental illnesses would experience a better quality of life, the outcomes of deinstitutionalization have not benefitted everyone. For many, the result has been a form of transinstitutionalization, particularly from psychiatric hospitals to correctional centres. This research looks at the outcomes experienced by the severely mentally ill and how their mental illnesses impact their contact with the justice, medical, and social systems.
Panicum (sect. Ovalfolia) Stapf 1920
Creators: name: Fernando O. Zuloaga
name: Diego Giraldo-Cañas
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Panicum
Panicum brevifolium

description: 5.  Panicum sect. Ovalifolia  Stapf,
Fl. Trop. Afr. 9 (4): 641, 650. 1920.
 Especie tipo. Panicum brevifolium L.
 Plantas anuales. Cañas densamente ramificadas. Hojas con lígulas reducidas, membranáceas; láminas ovado-lanceoladas. Inflorescencias terminales. Espiguillas en pares, ovoides a elipsoides. Gluma inferior casi tan larga como la espiguilla. Gluma superior tan larga o un poco menor que la espiguilla. Lema inferior tan larga como la espiguilla. Antecio superior con conspicuos micropelos bicelulares y papilas simples en toda su superficie. Cariopsis elipsoide, hilo punctiforme, embrión menos de 1/2 de la longitud de la cariopsis.
 Composición y distribución. Esta sección está representanta en América por una sola especie, la que se distribuye desde México hasta el norte de Brasil.
 Comentarios. Plantas C3, no-Kranz; número cromosómico básico x = 9.
description: Published as part of Fernando O. Zuloaga & Diego Giraldo-Cañas, 2013, 30. Panicum, pp. 1-107 in Flora de Colombia 30 on page 46, DOI: 10.5281/zenodo.259616
Completion and Stimulation Optimization of Montney Wells in the Karr Field
Creators: name: Popp, Melanie
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Engineering--Petroleum
subject: hydraulic fracturing
subject: Montney

description: The Montney formation in the Karr field has been identified as a very prolific target in today’s price environment due to its liquids rich potential. The profitability of the play depends greatly on reducing the amount of capital spent to exploit the resource. The operator has drilled and stimulated 4 horizontal wells in the area with a variety of placement issues, resulting in additional costs. An examination of the data from the problem wells identifies two major sources of premature screen outs and recommendations are made to mitigate this in the short term. A paradigm shift led to the creation of a fracture model such that the optimal fracture treatment design can be obtained. Finally, recommendations to whole well completion tactics are made resulting in a more prosperous well.
László Török, Meroe City. An Ancient African Capital. John Garstang’s Excavations in the Sudan
Creators: name: Wenig, Steffen
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 9 (1999): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Ninth International Conference of the Society for Nubian Studies, 21.–26. August 1998 in Boston
Creators: name: Lohwasser, Angelika
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 9 (1999): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Inland Lifeways of Haida Gwaii 400-1700 CE
Creators: name: Church, Karen
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Archaeology
subject: culturally modified tree
subject: cedar
subject: phenomenology
subject: least cost path
subject: trail
subject: CMT
subject: local knowledge

description: The inland lifeways of the northwest Pacific archipelago, Xaadlaa gwaayee (Haida Gwaii, British Columbia), have not been the subject of intensive archaeological inquiry. The routes of precontact inland trails are no longer well known due to the decimation of the local population in the 18th and 19th centuries. Industrial logging is threatening to destroy archaeological evidence of the inland trail network, and therefore this inquiry is timely. The largest and most topographically diverse island, Graham, has been the subject of many archaeological impact assessments that have documented hundreds of archaeological sites, most of them containing culturally modified trees. In this thesis, I use a landscape archaeology approach in which I access the local gyaahlang (legendary stories), conduct a brief research into the words and place names associated with inland lifeways, and provide an analysis of historic accounts and maps of the study area. As a mother of xaadaa children and an archaeologist who worked in inland areas and lead an indigenous lifestyle on Graham Island for 22 years, I naturally have a phenomenological perspective of the island and use this experience as the lens through which I interpret the results of this research. The local indigenous language, Xaad Kil, also guides my interpretation. The results are combined within a geographic information system where I use spatial analysis, including a series of least cost path analyses to help define potential archaeological survey corridors along proposed inland pathways. I also compare historic aerial photography with current orthophotos to assess changes to wetlands over the last century and to evaluate the archaeological potential associated with caribou hunting. Finally, three dimensional views of the landscape are used to assess the patterned distribution of culturally modified trees in relation to the least cost paths and ethnographic data, in an effort to refine the archaeological potential model for inland areas of Graham Island.
Desynchronizing effect of high-frequency stimulation in a generic cortical network model
Creators: name: Schütt, Markus
name: Claussen, Jens Christian
Publisher: name: arXiv
Year: 2012
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Chaotic Dynamics (nlin.CD)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Transcranial Electrical Stimulation (TCES) and Deep Brain Stimulation (DBS) are two different applications of electrical current to the brain used in different areas of medicine. Both have a similar frequency dependence of their efficiency, with the most pronounced effects around 100Hz. We apply superthreshold electrical stimulation, specifically depolarizing DC current, interrupted at different frequencies, to a simple model of a population of cortical neurons which uses phenomenological descriptions of neurons by Izhikevich and synaptic connections on a similar level of sophistication. With this model, we are able to reproduce the optimal desynchronization around 100Hz, as well as to predict the full frequency dependence of the efficiency of desynchronization, and thereby to give a possible explanation for the action mechanism of TCES.
description: 9 pages, figs included. Accepted for publication in Cognitive Neurodynamics
Propagation Model and Performance Analysis for Mobility Constrained Indoor Wireless Environments
Creators: name: Dey, Indrakshi
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Engineering--Electronics and Electrical
subject: Wireless Communication

description: In an indoor wireless environment like an open office or laboratory, there are not enough large obstacles to reflect or refract the main waves contributed by the scattering clusters visited by the mobile user. Moreover, mobile WLAN users generally restrict their movements to a small area due to the inability of most WLAN standards to accommodate hand-offs. As a result, users visit at most one or two scattering clusters and experience only a handful of different shadowing values. This thesis proposes the first ever appropriate composite fading / shadowing channel model that characterizes the combination of small scale fading and large scale shadowing for users confined to small coverage areas in a large office environment described above. Based on a detailed indoor measurement campaign, a joint distribution called the Joint fading and Two-path Shadowing (JFTS) distribution is proposed that combines the Rician fading and the two waves with diffuse power (TWDP) shadowing models. This thesis also presents the first ever analysis of different performance metrics like outage probability, error rate performances and spectral efficiencies of existing high throughput communication techniques like error control coding, fixed and adaptive modulation in mobility constrained indoor wireless environment, where the propagation scenario can be appropriately characterized by the newly developed JFTS model. Performance evaluation is done both in presence or absence of perfect channel state information.
DATS 6103 - Individual Project 3 - Lucia Illari
Creators: name: Illari, Lucia
Publisher: name: Zenodo
Year: 2020

description: I decided to scrap data from r/Pizza searching for the word `first` and for a list of the state abbreviations in the title of submissions from Jan 2017 to Dec 2020. I wanted to see what was the most popular type of pizza and the most popular pizza toppings, as well as see if COVID had an impact on the number of people posting about making pizza for the first time. Then I wanted to see if maybe this increase was due to a natural increase in the subreddit's population, or if it did coincide with lockdown. The first dataset, scrapping r/Pizza for submissions from Jan 2017 to Dec 2020 with `first` in the title, has 6061 instances. The second dataset, scrapping for the same time period but search for any state abbreviation in the title, has 8893 instances. Both datasets have the columns * Full Submission ID
 * Submission Title
 * Permalink
 * Author
 * Flair
 * Total Comments
 * Upvotes
 * Year
 * Month
 * Day
 * Time
 * Upvote Ratio
 * Total Awards
 * Gilded
Arbeitsbericht über die Dokumentation der Sekundärbilder und Sekundärinschriften von Musawwarat es Sufra
Creators: name: Wolf, Pawel
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 9 (1999): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Lo urgente y lo importante: una reflexión desde las geografías urbanas de la pandemia
Creators: name: Serrano Balaguer, Ivan
name: Cámara-Menoyo, Carlos
name: March Corbella, Hug
name: Ribera-Fumaz, Ramon
name: Ruiz-Mallén, Isabel
name: Grau-Satorras, Mar
Publisher: name: Zenodo
Year: 2020
Subjects: COVID-19
urbanización
agenda urbana

description: Reflexión para la sección "AGE y pandemia" de la Asociación Española de Geografía sobre las geografías de la #COVID19 y lo que, desde el Laboratorio de Transformación Urbana y Cambio Global (Internet Interdisciplinary Institute, Universitat Oberta de Catalunya), creemos que deberían sentar las bases para la definición de las agendas urbanas que surgirán a raíz de la pandemia.
description: {"references": ["G. K. Chesterton, What's wrong with the world (Auckland, NZ: The Floating Press, 2011 [1910], 16).", "D. Harvey, \"The nature of environment: dialectics of social and environmental change\"", "R. Miliband and L. Panitch, eds., Real Problems, False Solutions. A special issue of the Socialist Register (Londres: The Merlin Press, 1993, 31)", "R. Keil, C. Conolly y S. Harris Ali, Outbreaks like coronavirus start in and spread from the edges of\u00a0cities, https://theconversation.com/outbreaks-like-coronavirus-start-in-and-spread-from-the-edges-of-cities-130666", "N. Klein, No is not enough. Defeating the New Shock Politics (Londres: Allen Lane, 2017)."]}
Cooperative V2X Relative Navigation using Tight-Integration of DGPS and V2X UWB Range and Simulated Bearing
Creators: name: Wang, Da
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Robotics
subject: DGPS
subject: UWB range
subject: Bearing
subject: V2X positioning
subject: Decentralized filtering and fusion

description: Many intelligent transportation systems applications require precise relative vehicle position. Global Navigation Satellite Systems, particularly GPS currently provide this through either absolute or differential positioning. GPS performance is limited in environments with degraded or block signals. This thesis proposes to augment differential GPS (DGPS) with range and bearing observations to surrounding vehicles and infrastructure and accomplishes this by tightly integrating DGPS, range and bearing observations in a small network of vehicles or infrastructure points. The performance of this system is assessed using real GPS, and Ultra-Wide Band (UWB) ranging radio observations and “simulated” bearing data. The integrated solution outperforms the DGPS only solution. A Vehicle-to-Infrastructure (V2I) test at a deep urban canyon intersection show sub-metre to metre level horizontal positioning accuracy with three UWB ranging radios deployed at intersection, compared to tens of metres accuracy of DGPS only. For Vehicle-to-Vehicle (V2V), the DGPS and UWB outperforms DGPS only by 10%. Systematic UWB range errors are effectively estimated if integrated with the DGPS carrier phase Real Time Kinematic (RTK) solution. As a result, the UWB ranges improves the convergence of the carrier phase RTK float solution and the time to fix ambiguities. A full-order decentralized filter with post estimation information fusion was developed for V2V cooperative navigation. The full-order decentralized estimate on each vehicle can be fused with the estimate of other vehicles to achieve the centralized equivalent estimate, even if these estimates have different nuisance error states (including UWB systematic errors and carrier phase ambiguities), by fully taking account of the correlation in the observations and state covariance the filter has, which is demonstrated using GPS data and UWB range data collected in three-vehicle V2V field tests. In other cases if some of the correlation between the nuisance error states and the position states is being ignored, the vehicle that has access to fewer observations can still also benefit from the cooperation via fusing its estimate with that of another vehicle that has better solution.
Feldarbeiten des Seminars für Sudanarchäologie und Ägyptologie der Humboldt-Universität in Musawwarat es Sufra
Creators: name: Wenig, Steffen
name: Wolf, Pawel
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 9 (1999): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Quantum algorithms for problems in number theory, algebraic geometry, and group theory
Creators: name: van Dam, Wim
name: Sasaki, Yoshitaka
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum computers can execute algorithms that sometimes dramatically outperform classical computation. Undoubtedly the best-known example of this is Shor's discovery of an efficient quantum algorithm for factoring integers, whereas the same problem appears to be intractable on classical computers. Understanding what other computational problems can be solved significantly faster using quantum algorithms is one of the major challenges in the theory of quantum computation, and such algorithms motivate the formidable task of building a large-scale quantum computer. This article will review the current state of quantum algorithms, focusing on algorithms for problems with an algebraic flavor that achieve an apparent superpolynomial speedup over classical computation.
description: 20 pages, lecture notes for 2010 Summer School on Diversities in Quantum Computation/Information at Kinki University
Gossip Girl and The CW: defining a new network. (You’re nobody until you’re talked about)
Creators: name: Le Fèvre-Berthelot, Anais
Publisher: name: Series - International Journal of TV Serial Narratives
Year: 2018
Subjects: The CW; Gossip Girl; post-network era; audience commodity; feminist television criticism

description: This paper analyzes how the teenage soap Gossip Girl was crucial to the gendered strategy by which The CW (2006-2012) defined itself in the post-network era. The CW relied on narrowcasting, branding, and transmedia to attract and keep a very specific share of the audience in order to create a viable fifth network. Analyzing The CW’s early years through Gossip Girl casts light on the evolutions that shaped US television industry’s during this period, from the renewed interest in female audiences to economic and technological convergence.
description: Series - International Journal of TV Serial Narratives, Vol 4, No 2 (2018)
The dark side of benzene: interference vs. interaction
Creators: name: Bohr, Dan
name: Schmitteckert, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present the study of the linear conductance vs.\ applied gate voltage for an interacting six site ring structure, which is threaded by a flux of $π$ and coupled to a left and a right lead. This ring structure is designed to have a vanishing conductance for all gate voltages and temperatures provided interactions are ignored. Therefore this system is an ideal testbed to study the interplay of interaction and interference. First we find a Kondo type resonance for rather large hopping parameter. Second, we find additional resonance peaks which can be explained by a population blocking mechanism. To this end we have to extend the Kubo approach within the Density Matrix Renormalization Group method to handle degenerate states.
description: 5 pages, 5 figures
konservatorischen Arbeiten der SAG während der Dritten Grabungskampagne 1997 in Musawwarat es Sufra
Creators: name: Wenig, Steffen
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 9 (1999): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Tying up baric algebras
Creators: name: Oller-Marcén, Antonio M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17D92, 17D99

description: Given two baric algebras $(A_1,ω_1)$ and $(A_2,ω_2)$ we describe a way to define a new baric algebra structure over the vector space $A_1\oplus A_2$, which we shall denote $(A_1\bowtie A_2,ω_1\bowtieω_2)$. We present some easy properties of this construction and we show that in the commutative and unital case it preserves indecomposability. Algebras of the form $A_1\bowtie A_2$ in the associative, coutable-dimensional, zero-characteristic case are classified.
description: To appear in Mathematica Slovaca
Editorial
Creators: name: Wenig, Steffen
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 9 (1999): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
The Role of Sodium-Calcium Exchanger in the Regulation of Endothelial Function
Creators: name: Liao, Chiu-Hsiang
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Pharmacology
subject: Endothelium
subject: calcium
subject: Sodium-calcium exchanger

description: Appropriate release of nitric oxide (NO) is critical for normal physiological functioning of the cardiovascular system. Although a rise in intracellular Ca2+ concentration ([Ca2+]i) in endothelial cells (ECs) is thought to play an important role in the coordination of NO release, the molecular mechanism underlying this influx is poorly understood. The work presented here outlines the molecular mechanisms responsible for regulating endothelial [Ca2+]i and its implication to NO production and release, and involved two major areas of study. Firstly, we identified the presence of a signaling complex comprised of stromal interaction molecule 1 (STIM1), transient receptor potential protein (canonical subtype) 1 (TRPC1), and the Na+/Ca2+ exchanger 1 (NCX1) in cultured ECs, which may be an important component of the Ca2+ influx pathway necessary for the activation of endothelial NO synthase (eNOS) during agonist stimulation. Secondly, recruitment of the NCX in reverse mode was shown to play an important role in flow-mediated dilation and the corresponding phosphorylation of serine-1177 of eNOS (S1177-eNOS). This is the first study to identify S1177-eNOS phosphorylation in response to flow in small (< 300 μm), pressurized, myogenic rat cerebral arteries. These findings are significant because the potential involvement of a TRP-NCX signaling complex in ECs has been an unresolved issue for some time. Therefore the work of this thesis provides unique insight into the molecular mechanisms that contribute to the regulation of endothelial [Ca2+]i.
Assessing computationally efficient isomerization dynamics: Delta-SCF density-functional theory study of azobenzene molecular switching
Creators: name: Maurer, Reinhard J.
name: Reuter, Karsten
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a detailed comparison of the S0, S1 (n -> π*) and S2 (π-> π*) potential energy surfaces (PESs) of the prototypical molecular switch azobenzene as obtained by Delta-self-consistent-field (Delta-SCF) Density-Functional Theory (DFT), time-dependent DFT (TD-DFT) and approximate Coupled Cluster Singles and Doubles (RI-CC2). All three methods unanimously agree in terms of the PES topologies, which are furthermore fully consistent with existing experimental data concerning the photo-isomerization mechanism. In particular, sum-method corrected Delta-SCF and TD-DFT yield very similar results for S1 and S2, when based on the same ground-state exchange-correlation (xc) functional. While these techniques yield the correct PES topology already on the level of semi-local xc functionals, reliable absolute excitation energies as compared to RI-CC2 or experiment require an xc treatment on the level of long-range corrected hybrids. Nevertheless, particularly the robustness of Delta-SCF with respect to state crossings as well as its numerical efficiency suggest this approach as a promising route to dynamical studies of larger azobenzene-containing systems.
description: 25 pages, 6 figures
Quantitative prediction of the phase diagram of DNA-functionalized nano-colloids
Creators: name: Mladek, Bianca M.
name: Fornleitner, Julia
name: Martinez-Veracoechea, Francisco J.
name: Dawid, Alexandre
name: Frenkel, Daan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present a coarse-grained model of DNA-functionalized colloids that is computationally tractable. Importantly, the model parameters are solely based on experimental data. Using this highly simplified model, we can predict the phase behavior of DNA-functionalized nano-colloids without assuming pairwise additivity of the inter-colloidal interactions. Our simulations show that for nano-colloids, the assumption of pairwise additivity leads to substantial errors in the estimate of the free energy of the crystal phase. We compare our results with available experimental data and find that the simulations predict the correct structure of the solid phase and yield a very good estimate of the melting temperature. Current experimental estimates for the contour length and persistence length of single-stranded DNA sequences are subject to relatively large uncertainties. Using the best available estimates, we obtain predictions for the crystal lattice constants that are off by a few percent: this indicates that more accurate experimental data on ssDNA are needed to exploit the full power of our coarse-grained approach.
description: 4 pages, 2 figures; accepted for publication in Phys. Rev. Lett
Politics and foreign influence in the development of Spanish court theatrical music with a study of composer Sebastian Duron (1660-1716)
Creators: name: Acuna, Maria Virgina
Publisher: name: University of British Columbia
Year: 2010

description: The composer Sebastián Durón (1660–1716), who lived in a period of political and cultural transition spanning two antagonistic monarchic dynasties, was one of the most controversial musical figures of his time. Early in his career as a musician at the court of Charles II (1665-1700), the last Spanish Habsburg, he wrote theatrical music in the style established before him during the reign of Philip IV (1621-65). However, later during the reign of Philip V (1700-46), the first Spanish Bourbon, Durón composed theatrical music influenced by the new foreign musical idioms introduced in Madrid. Commentators have always taken into account politics and foreign influence when interpreting the theatrical music of the baroque period judging that the music by later musicians under foreign influence represents a decline and a loss of national music identity. In addition, the controversial concept of the Spanish political-economic decline has found its way into music historiography. It is perhaps for this reason that Durón’s music is treated rather obscurely as having arisen during a transitional period, both politically and musically. Two other factors contributing to the marginal status of Durón in the history of music are that little of his music has been published, and Spanish music as a whole has received relatively little attention from North American musicologists. The aim of this study is to examine the development of theatrical music in Madrid during the late seventeenth and early eighteenth centuries acknowledging Sebastián Durón’s important contribution to the genre. Three works, each representing a different period in the life of the composer as well as a different political period in Spain, will be analyzed. I will argue that the idea of decline mentioned in connection with politics and economy cannot be applied in all fields. On the contrary, the political turmoil of the time paradoxically contributed to the development of theatrical music in the hands of Durón. By assimilating foreign musical elements and developing the Spanish manner, Durón achieved an unprecedented synthesis of diverse textures, forms, and musical style that epitomize the pinnacle in Spanish theatrical music of the baroque period.
Finite-temperature charge and spin transport in the one-dimensional Hubbard model accounting for its global [SU (2) X SU(2) X U(1)]/Z_2^2$ symmetry
Creators: name: Carmelo, J. M. P.
name: Carmelo, J. E. C.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using a general representation that accounts for the effects on finite-temperature spin and charge transport of the global [SU (2) X SU(2) X U(1)]/(Z2 X Z2) symmetry of the one-dimensional (1D) Hubbard model, we show that important finite-temperature transport quantities as the finite-field spin and finite-chemical potential charge stiffnesses and the zero-field spin and zero-chemical potential charge diffusion constants are controlled by microscopic processes associated with the spin and charge elementary currents carried by the spin and charge carriers, respectively. We describe the model finite-temperature transport properties in terms of the microscopic processes associated with the spin and charge elementary currents carried by the corresponding carriers. We expect that the general representation used in our study is that suitable to address the open problems on finite-temperature transport in the 1D Hubbard model also discussed in this paper.
description: 25 pages, 1 figure
Radioheliograph observations of microwave bursts with zebra structures
Creators: name: Altyntsev, A. T.
name: Lesovoi, S. V.
name: Meshalkina, N. S.
name: Sych, R. A.
name: Yan, Y.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The so-called zebra structures in radio dynamic spectra, specifically their frequencies and frequency drifts of emission stripes, contain information on the plasma parameters in the coronal part of flare loops. This paper presents observations of zebra structures in a microwave range. Dynamic spectra were recorded by Chinese spectro-polarimeters in the frequency band close to the working frequencies of the Siberian Solar Radio Telescope. The emission sources are localized in the flare regions, and we are able to estimate the plasma parameters in the generation sites using X-ray data. The interpretation of the zebra structures in terms of the existing theories is discussed. The conclusion has been arrived that the preferred generation mechanism of zebra structures in the microwave range is the conversion of plasma waves to electromagnetic emission on the double plasma resonance surfaces distributed across a flare loop.
description: 18 pages, 7 figures
Inhalt
Creators: name: Redaktion, Die
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2023

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 9 (1999): Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.