cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fishing via Meaning Infrastructure: Entrepreneurial Search and Possibility Development in the Emergent AI & ML Field
Creators: Valadao Alves, Rodrigo
Publisher: name: University of Alberta Library
Year: 2023

This monograph broadens the scope of cultural entrepreneurship by exploring the link between entrepreneurial search activities and the level of institutionalization of fields. Cultural entrepreneurship involves manipulating cultural repertoires to gather support from relevant audiences, but this relationship between institutionalization and entrepreneurial activity has been underexplored. Additionally, the assumption that entrepreneurs and their target audiences share cultural overlap is not always true in fields with a low level of institutionalization. These aspects have limited cultural entrepreneurship's ability to explain, for example, entrepreneurial search and possibility development in nascent and disintegrating fields. To address these limitations, this dissertation proposes the metaphor of fishing as a mechanism through which entrepreneurs explore possibilities and advance or demobilize institutionalization. The concept of meaning infrastructure is also introduced, representing a network of cultural repertoires that constitute the underlying meaning system of an institutional field. Four archetypes of meaning infrastructure are theorized: ethereal, condensed, plasmatic, and crystallized. Successful fishing occurs when entrepreneurs develop ties among cultural repertoires at the meaning infrastructure level. Empirically, this dissertation examines how cultural repertoires become available for startup organizations in an emerging field (i.e., the artificial intelligence and machine learning field in Canada between 2011 and 2020) and how fishing strategies are used effectively. Four major cultural repertoires are available for startups in an emerging field, enabling four fishing strategies: visionary, steward, communitarian, and pragmatic. The pragmatic strategy focusing on a crystallized infrastructure from adjacent mature fields is the only one that increases the chance of securing initial funding. This dissertation concludes with a discussion on the overall significance of the responses to the three research questions addressed, as well as directions for future research. Theoretically and empirically, this monograph contributes to advancing the relational turn in cultural entrepreneurship, a move that is fundamental to understanding entrepreneurial activity as part of a broader macro-cultural context.
SEDIMENTOLOGICAL AND ICHNOLOGICAL CHARACTERIZATION OF THE LATE CARBONIFEROUS–MIDDLE PERMIAN SUCCESSION IN THE SUBSURFACE OF CENTRAL SAUDI ARABIA
Creators: Polo Camacho, Camilo A.
Publisher: name: University of Alberta Library
Year: 2023

The Late Carboniferous–Middle Permian Unayzah Group is a widespread sand-rich stratigraphic unit with equivalent deposits across the subsurface of

the Arabian Peninsula. Historically, sediment deposition for this interval in the subsurface of Saudi Arabia has been ascribed to continental settings dominated by aeolian processes. Combining ichnology, sedimentology, and palynology this study refines traditionally held views. By introducing new depositional models and sedimentary processes operating at the time of sediment deposition, we confirm the presence of shallow-marine sedimentary environments. Integration of ichnological and sedimentological observations in the Nuayyim Formation allowed the identification of marginal-marine, tidally influenced sedimentation (FA1), and shallow-marine, wave- and storm-dominated sedimentation with subordinate tidal and fluvial influence (FA2) in its basal Wudayhi Member. Colonization by bioturbating infauna exhibiting elements of an overall impoverished Skolithos and Cruziana Ichnofacies is interpreted to be related to sea level rise, with regional transgression induced by the melting of glacier ice following the Late Carboniferous to Early Permian glaciation that affected southern Gondwana.

Following climatic amelioration and continental drift of the Arabian Plate towards a more temperate paleolatitud, sediment deposition for the overlaying Tinat Member was characterized by aeolian and marginal-marine, tidally influenced interactions in

two facies associations (FA1 and FA2) that are conformably interbedded. Therein, FA2 reflects sedimentation in shallow-marine, tidally influenced environments and includes punctuated occurrences of bioturbated tidal flats and sheltered shallow bay

deposits interbedded with aeolian sediments. The ichnofossil assemblage exhibits a diminutive, highly stressed mixture with structures reflecting an impoverished Skolithos Ichnofacies and Cruziana Ichnofacies. It constitutes a model for marginal marine and aeolian interactions and their resulting ichnofossil suite that can be used in similar successions in the rock record. Widespread paleosols characterize the upper part of the Tinat Member with burrowing that exhibits elements of the Scoyenia Ichnofacies. Therein, biogenic activity in the form of continental fauna and plants mark palimpsest surfaces. Progressive thermal updoming is interpreted to have occurred during the latest portion of the Unayzah Group sedimentation cycle in the Arabian Plate culminating in the regional “Pre-Khuff unconformity” at the top of this megacycle recognized in this study by biogenically-demarcated diastems. Thereby, providing an example of the utility of trace fossil analysis in genetic stratigraphy in continental settings.
A Note on Large N Thermal Free Energy in Supersymmetric Chern-Simons Vector Models
Creators: name: Yokoyama, Shuichi
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the exact effective action for \cN=3 U(N)_k and \cN=4,6 U(N)_k\times U(N')_{-k} Chern-Simons theories with minimal matter content in the 't Hooft vector model limit under which N and k go to infinity holding N/k, N' fixed. We also extend this calculation to \cN=4,6 mass deformed case. We show those large N effective actions except mass-deformed \cN=6 case precisely reduce to that of \cN=2 U(N)_k Chern-Simons theory with one fundamental chiral field up to overall multiple factor. By using this result we argue the thermal free energy and self-duality of the \cN=3,4,6 Chern-Simons theories including the \cN=4 mass term reduce to those of the \cN=2 case under the limit.
description: 27 pages, v2: minor improvements, a reference added, v3: published version
Concepción teórico-metodológica para favorecer la formación laboral de los estudiantes de preuniversitario
Creators: name: Escalona Gráss, José Luis
Publisher: name: Zenodo
Year: 2024

description: La concepción teórico-metodológica se sustenta en la sistematización y en la valoración realizadas por el autor acerca de las concepciones teórico-metodológicas relacionadas con el tratamiento de la formación laboral, sobre la base del pensamiento educativo cubano y las concepciones de la escuela histórico-cultural, las que sirvieron de punto de partida para adentrarse en la contextualización de un proceso básico centrado en el desarrollo del eje temático articulador, para enfrentar el proceso educativo en la educación preuniversitaria.Esta tesis se sustenta en los núcleos básicos, que han sido denominados: diagnóstico, organizativo y estructural, los que permiten desarrollar el proceso de formación laboral con la orientación laboral como eje temático articulador y la implementación y seguimiento de las acciones pedagógicas, las que han sido concebidas para favorecer los componentes teórico y metodológico de la concepción presentada, lo que contribuirá a la educación integral de los estudiantes de preuniversitario como componente para enfrentar su futuro sociolaboral
Additional file 1 of Whole-genome sequencing of two multidrug-resistant acinetobacter baumannii strains isolated from a neonatal intensive care unit in Egypt: a prospective cross-sectional study
Creators: name: Mohamed, Rania Alam Eldin
name: Moustafa, Nouran Magdy
name: Mahmoud, Fatma Mostafa
name: Elsaadawy, Yara Said
name: Aziz, Heba Sherif Abdel
name: Gaber, Shaimaa Abou Bakr
name: Hussin, Abdelrahman Mohamed
name: Seadawy, Mohamed G.
Publisher: name: figshare
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Supplementary Material 1.
How Do Constraints Affect Early-stage Entrepreneurial Activity?  A Regulatory Focus Perspective
Creators: Rahman, Zahid
Publisher: name: University of Alberta Library
Year: 2023

Academics and practitioners tend to accept that people found new ventures only primarily for economic reasons, but is that always true? Emerging work in the field suggests other non-economic key motives that may drive entrepreneurial decisions. My dissertation explores one such critical non-economic motive, namely, founders’ feelings of constraint. A puzzle addressed in this research is whether constraints help or hinder entrepreneurial behaviors. The literature is unclear, with evidence supporting both positive and negative views. To solve this theoretical puzzle, this dissertation offers three separate empirical papers, each examining the role of constraints in different stages of a typical entrepreneurial process (i.e., idea generation, idea selection, and resource acquisition). In doing so, it developed and validated three theoretically meaningful original measures (i.e., chronic and acute constraints, and perceived constraint). Moreover, this research looked at and tested the moderating effects of one’s regulatory focus on the relationship between constraints and the entrepreneurial process. Using MTurk panels, three papers found support for the main hypotheses. As such, this dissertation makes several significant contributions to the study of entrepreneurship. While many previous studies limit their analyses to a single stage of the entrepreneurial journey, this work shows how a phenomenon (i.e., constraints) affects entrepreneurial decision-making in different stages of venture creation. Such a multi-stage perspective enhances our understanding of constraints and their roles in the entrepreneurial process. Second, this research helps us realize the conditions under which, even after facing diverse constraints, some entrepreneurs successfully meet various challenges associated with new venture creation. Third, to the best of my knowledge, this is the first empirical testing of the notion that a founder’s ability to exhibit both promotion- and prevention-oriented behaviors are instrumental for entrepreneurial success.
Determinantal point processes and their parameter estimations
Creators: Shi, Haiyi
Publisher: name: University of Alberta Library
Year: 2023

Determinantal point processes (DPPs) arise as important tools in various aspects of mathematics, such as stochastic processes, random matrices, and combinatorics. Over the last decade, DPPs have also been widely used in ma- chine learning community; they are especially popular in subset selection prob- lems, for they favour subsets of high quality and diversity. These applications motivate studies in parameter estimations, of which a common method is max- imum likelihood estimation. In 2017, Brunel et al first studied this non-convex optimization problem using an information geometric approach. Inspired by their work, we introduce and extend some of their results: we exhibit the strong consistency and the rates of convergence of the maximum likelihood es- timator to the normality, i.e. the Berry-Essen type theorem. Moreover, in two dimensional case, we obtain the explicit form of the estimator and establish the strong consistency and central limit theorem. We also give some remarks on higher dimensional DPPs.
Missing the Mark: Student Clinicians Write Psychological Reports for their Supervisors Instead of their Clients
Creators: Eriksen, Jessica
Publisher: name: University of Alberta Library
Year: 2023

Decades of research revealed that effective psychological reports are those written at a lower reading level, are formatted by functional domain, and communicate the results in an integrated client-centered manner. However, psychological reports continue to be difficult to read for non- psychologists. Considerable research suggests service users (i.e., clients, parents, and teachers) find reports to be difficult to understand, overly technical, and not very useful. One factor that has been identified as contributing to these report-writing issues is the training practices of professional psychology programs. Despite a proliferation of research on test administration and scoring errors, there has been far less inquiry into graduate students' report writing developing competencies. This was the first study to examine graduate students’ psychological report writing skills in a professional psychology program in Western Canada. A quantitative content analysis was used to analyze 63 psychological reports written by graduate students to reveal commonalities and differences in report writing style and content. Relationships between specific report writing characteristics such as presentation style, integration, and readability were also explored in the context of best practices. Overall, the results suggest students have difficulty writing accessible and integrated reports. Type of formatting may contribute to greater integration and therefore, should be considered when teaching students how to present information in the report. The findings of this study are discussed in terms of implications for psychologists, instructors, and students in training.
Deep Electrification and Renewable Energy in a Remote Canadian Community
Creators: Priyanka, Tazrin Jahan
Publisher: name: University of Alberta Library
Year: 2023

This study examines high-penetration of renewable energy options for Fort Chipewyan (an off-grid community in northern Alberta, Canada). This analysis goes beyond modelling hybrid diesel-renewable electricity supply, to also consider deep electrification scenarios that not only aim to electrify the community’s heating and transportation energy demands, which can almost triple the average 35 MWh/day electricity load in a highly seasonal manner. HOMER Pro software was used to create seven different electricity use scenarios, and the outcomes were compared to optimize hybrid renewable energy technologies including solar PV, wind turbines, batteries, and hydrogen fuel cells to meet forecast electricity demand. Sensitivity analyses were conducted to verify the effects of factors such as solar radiation, wind speed, the capital cost of solar PV and wind turbines, diesel prices, and CO2 penalty cost on the cost of electricity (COE). While the community has already installed 2.6 MW of solar PV in 2019, this research found that wind energy offers a low cost long-term renewable energy option if deep electrification goals are pursued due to the solar resource being out of sync with winter heating demands. Without heat and transportation electrification, a wind-diesel-storage system could reduce the COE by 10% (from 0.326 $/kWh to 0.295 $/kWh), while reducing CO2e emissions by 12% (3000 tCO2e) annually compared to the existing system. Additionally, adding batteries along with solar PV and wind turbines cuts annual diesel fuel costs by $1.6 million. The findings also show that if transportation is electrified, a PV-wind-battery-diesel system can reduce CO2 emissions by almost 16,500 tCO2e annually with a resulting electricity cost of 0.291 $/kWh. Efforts to fully decarbonize the energy system however become increasingly expensive, ranging from 3 to 6 times the current energy cost for deep decarbonization and electrification, largely due to the overbuild requirements for variable renewable energy technologies.
A Cyber-Physical Production System Approach to Polymer Extrusion 3D Printing Process
Creators: Castillo, Miguel
Publisher: name: University of Alberta Library
Year: 2023

Polymer extrusion in the 3D printing process is one of the most widely used technologies among end users. In recent years it has experienced an increasing interest in the industry due to its advantages as a process to create parts that do not need prior preparations, such as mold creation, and doesn’t need post-processing, such as the curing or cleaning of the part. To address the adoption of technology in mass production, there are challenges to overcome in the field of quality control and fault detection for an autonomous production system. Three main research objectives are pursued in this thesis. The first is to set the foundations and understanding of the current state-of-the-art of process and its technology. To address it, a scientometric analysis followed by a systematic review was implemented to do the literature review and achieve the objective without biases in the results. The second research objective seeks to fill the literature gaps encountered in the previous part by developing a cyber-physical production system using smart technologies to improve quality control and defect detection. Different hardware configurations and deployments were tested to get a suitable configuration emphasizing the right sensor array selection, and a preliminary test validated its proper functioning. Finally, the thesis contributes to developing a data-based model on the parameter’s interaction and its relation to the mechanical properties, specifically in the ultimate tensile strength. The experiments ranked the influence of four parameters: layer thickness, material temperature, bed temperature, and printing speed on dog bone specimens printed using PLA. Additionally, a full factorial study was conducted to get a detailed interaction between the most important two. The data-based model is presented as an adequate solution to solve quality problems and defective print detections, leveraging the adoption in mass production.
The role of energy balance related behaviors in socioeconomic inequalities in childhood body mass index : a comparative analysis of Germany, the Netherlands, the United Kingdom, and the United States
Creators: name: De La Rie, Sanneke
name: Washbrook, Elizabeth
name: Perinetti Casoni, Valentina
name: Waldfogel, Jane
name: Jiyoon Kwon, Sarah
name: Dräger, Jascha
name: Schneider, Thorsten
name: Olczyk, Melanie
name: Boinet, Césarine
name: Keizer, Renske
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 300

description: Socioeconomic inequalities in childhood Body Mass Index (BMI) are becoming increasingly more pronounced across the world. Although countries differ in the direction and strength of these inequalities, cross-national comparative research on this topic is rare. This paper draws on harmonized longitudinal cohort data from four wealthy countries—Germany, the Netherlands, the United Kingdom (UK), and the United States (US)—to 1) map cross-country differences in the magnitude of socioeconomic inequalities in childhood BMI, and 2) to examine cross-country differences in the role of three energy-balance-related behaviors—physical activity, screen time, and breakfast consumption—in explaining these inequalities. Children were aged 5–7 at our first timepoint and were followed up at age 8–11. We used data from the German National Educational Panel Study, the Dutch Generation R study, the UK Millennium Cohort Study and the US Early Childhood Longitudinal-Kindergarten Study. All countries revealed significant inequalities in childhood BMI. The US stood out in having the largest inequalities. Overall, inequalities between children with low versus medium educated parents were smaller than those between children with high versus medium educated parents. The role of energy-balance-related behaviors in explaining inequalities in BMI was surprisingly consistent. Across countries, physical activity did not, while screen time and breakfast consumption did play a role. The only exception was that breakfast consumption did not play a role in the US. Cross-country differences emerged in the relative contribution of each behavior in explaining inequalities in BMI: Breakfast consumption was most important in the UK, screen time explained most in Germany and the US, and breakfast consumption and screen time were equally important in the Netherlands. Our findings suggest that what constitutes the most effective policy intervention differs across countries and that these should target both children from medium as well as low educated families.
Stochastic switching in slow-fast systems: a large fluctuation approach
Creators: name: Heckman, Christoffer R.
name: Schwartz, Ira B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper we develop a perturbation method to predict the rate of occurrence of rare events for singularly perturbed stochastic systems using a probability density function approach. In contrast to a stochastic normal form approach, we model rare event occurrences due to large fluctuations probabilistically and employ a WKB ansatz to approximate their rate of occurrence. This results in the generation of a two-point boundary value problem that models the interaction of the state variables and the most likely noise force required to induce a rare event. The resulting equations of motion of describing the phenomenon are shown to be singularly perturbed. Vastly different time scales among the variables are leveraged to reduce the dimension and predict the dynamics on the slow manifold in a deterministic setting. The resulting constrained equations of motion may be used to directly compute an exponent that determines the probability of rare events. To verify the theory, a stochastic damped Duffing oscillator with three equilibrium points (two sinks separated by a saddle) is analyzed. The predicted switching time between states is computed using the optimal path that resides in an expanded phase space. We show that the exponential scaling of the switching rate as a function of system parameters agrees well with numerical simulations. Moreover, the dynamics of the original system and the reduced system via center manifolds are shown to agree in an exponentially scaling sense.
On the influence of the rhodamine substituents onto the cytotoxicity of mitocanic maslinic acid rhodamine conjugates
Creators: name: Kozubek, Marie
name: Denner, Toni C.
name: Eckert, Marc
name: Hoenke, Sophie
name: Csuk, René
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 540

description: Maslinic acid was converted via a di-acetylated piperazinyl amide into rhodamine conjugates differing in their alkyl moieties. These conjugates were submitted to cytotoxicity assays employing a panel of human tumor cell lines. These conjugates held high cytotoxicity but also some selectivity especially for A2780 cells. Thereby, a propyl substituted rhodamine conjugate showed EC50 values as low as EC50 = 0.01 μM and was approx. 15 times more cytotoxic for the cancer cells than for non-malignant fibroblasts (NIH 3 T3). Cytotoxicity obviously parallels the lipophilicity of the residue and suggests - since the compounds act as mitocanes - an interaction of the conjugates with the inner mitochondrial membrane.
Correlation scenarios and correlation stress testing
Creators: name: Packham, Natalie
name: Wöbbeking, Carl Fabian
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 330

description: We develop a general approach for stress testing correlations of financial asset portfolios. The correlation matrix of asset returns is specified in a parametric form, where correlations are represented as a function of risk factors, such as country and industry factors. A sparse factor structure linking assets and risk factors is built using Bayesian variable selection methods. Regular calibration yields a joint distribution of economically meaningful stress scenarios of the factors. As such, the method also lends itself as a reverse stress testing framework: using the Mahalanobis distance or Highest Density Regions (HDR) on the joint risk factor distribution allows to infer worst-case correlation scenarios. We give examples of stress tests on a large portfolio of European and North American stocks.
Supplementary document for Impact of Preprocessing Methods on Raman Spectra of Brain Tissue - 6137376.pdf
Creators: name: Wahl, Joel
name: Klint, Elisabeth
name: Hallbeck, Martin
name: Hillman, Jan
name: Wårdell, Karin
name: Ramser, Kerstin
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: subject: 170205 Neurocognitive Patterns and Neural Networks
subject: FOS: Psychology

description: Supplementary Figures
Additional file 2 of Whole-genome sequencing of two multidrug-resistant acinetobacter baumannii strains isolated from a neonatal intensive care unit in Egypt: a prospective cross-sectional study
Creators: name: Mohamed, Rania Alam Eldin
name: Moustafa, Nouran Magdy
name: Mahmoud, Fatma Mostafa
name: Elsaadawy, Yara Said
name: Aziz, Heba Sherif Abdel
name: Gaber, Shaimaa Abou Bakr
name: Hussin, Abdelrahman Mohamed
name: Seadawy, Mohamed G.
Publisher: name: figshare
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Supplementary Material 2.
Challenges and care strategies associated with the admission to nursing homes in Germany : a scoping review
Creators: name: Skudlik, Stefanie
name: Hirt, Julian
name: Döringer, Tobias
name: Thalhammer, Regina
name: Lüftl, Katharina
name: Prodinger, Birgit
name: Müller, Martin
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 618

description: Background: The admission to a nursing home is a critical life-event for affected persons as well as their families. Admission related processes are lacking adequate participation of older people and their families. To improve transitions to nursing homes, context- and country-specific knowledge about the current practice is needed. Hence, our aim was to summarize available evidence on challenges and care strategies associated with the admission to nursing homes in Germany. Methods: We conducted a scoping review and searched eight major international and German-specific electronic databases for journal articles and grey literature published in German or English language since 1995. Further inclusion criteria were focus on challenges or care strategies in the context of nursing home admissions of older persons and comprehensive and replicable information on methods and results. Posters, only-abstract publications and articles dealing with mixed populations including younger adults were excluded. Challenges and care strategies were identified and analysed by structured content analysis using the TRANSCIT model. Results: Twelve studies of 1,384 records were finally included. Among those, seven were qualitative studies, three quantitative observational studies and two mixed methods studies. As major challenges neglected participation of older people, psychosocial burden among family caregivers, inadequate professional cooperation and a lack of shared decision-making and evidence-based practice were identified. Identified care strategies included strengthening shared decision-making and evidence-based practice, improvement in professional cooperation, introduction of specialized transitional care staff and enabling participation for older people. Conclusion: Although the process of nursing home admission is considered challenging and tends to neglect the needs of older people, little research is available for the German health care system. The perspective of the older people seems to be underrepresented, as most of the studies focused on caregivers and health professionals. Reported care strategies addressed important challenges, however, these were not developed and evaluated in a comprehensive and systematic way. Future research is needed to examine perspectives of all the involved groups to gain a comprehensive picture of the needs and challenges. Interventions based on existing care strategies should be systematically developed and evaluated to provide the basis of adequate support for older persons and their informal caregivers.
Underground Rock Music in Inland Chinese Cities: An Ethnographic Study of the Music and Ideology of the Developing Zhengzhou Rock Music Scene, 2000-2023
Creators: Li, Sitong
Publisher: name: University of Alberta Library
Year: 2023

Rock music, a Western-originated popular music genre, has existed in mainland China for almost forty years. Emerging in Beijing during the tumultuous and rapidly changing social, political, and economic landscape of the 1980s, Chinese rock music voiced younger generations’ concerns about the future of China and expressed subversive perspectives that some echoed with the student movement. Over successive generations, as China underwent significant social, cultural, and economic developments, rock music gained wider acceptance and a growing commercial market in the mainland and beyond. Meanwhile, Chinese youths have developed rock music in various ways that both confirmed and deviated from the original meanings and functions of rock music in the 1980s. This paper investigates these changes from the perspective of the underground rock music scene in the inland Chinese city of Zhengzhou. Through interview-based ethnographic research of Zhengzhou rock musicians, this study aims to understand how an underground rock music movement emerged and rapidly developed a thriving scene, as a part of an underground rock music network among different inland cities, in about twenty years. In particular, this paper hopes to uncover how the original ideologies of 1980s Beijing rock musicians were maintained or changed by Zhengzhou rock musicians and shaped their decisions in the formation and development of the underground rock music scene in Zhengzhou. This study seeks to provide new perspectives on the evolution of Chinese rock music outside of China’s large coastal cities, as a way to broaden the understanding of the different methods and modes of adoption and assimilation of rock music into Chinese-speaking East Asia.
title: Colonia Ulpia Traiana. Xanten und sein Umland in römischer Zeit, herausgegeben von M. Müller, H.-J. Schalles und N. Zieling. Xantener Berichte Sonderband. Geschichte der Stadt Xanten 1, 2008
Creators: name: Zerres, Jutta
Publisher: name: University Library Heidelberg
Year: 2013

description: Rezension zu: Colonia Ulpia Traiana. Xanten und sein Umland in römischer Zeit, herausgegeben von M. Müller, H.-J. Schalles und N. Zieling. Xantener Berichte Sonderband. Geschichte der Stadt Xanten 1. Eine Veröffentlichung des Landschaftsverbandes Rheinland LVR-Archäologischer Park/LVR-Römermuseum. Verlag Philipp von Zabern. Mainz 2008. 638 S., 434 meist farbige Abb. ISBN 978-3-8053-3953-7. Preis: 29,90 €/49,90 SFR.
title: Wijnand van der Sanden / Henk Luning (red.): Over galg en rad. Executieplaatsen in Drenthe, 2010
Creators: name: Auler, Jost
Publisher: name: University Library Heidelberg
Year: 2013

description: Rezension zu: Wijnand van der Sanden / Henk Luning (red.), Over galg en rad. Executieplaatsen in Drenthe. Uitgeverij Waanders. Zwolle/Assen 2010. ISBN 978-90-400-8575-8, 256 Seiten, zahlreiche, teils farbige Abb., EUR 22,95
Calidad de las revistas científicas
Creators: name: Vazquez, Damián
Publisher: name: Zenodo
Year: 2019
Subjects: revistas lilacs
calidad
redacción científica

description: Buenas Prácticas Proceso Editorial LILACS 2019 • Sesión 02 | 17 de abril de 2019

 • Tema: "Calidad de las revistas científicas"

 • Panelista: Damián Vazquez

 → http://red.bvsalud.org/lilacs/es/sesiones-buenas-practicas-edicion-revistas-cientificas-lilacs-2019/
title: Feuerböcke und Mondidole aus Gräbern – Ein Beitrag zum Symbolgut der späten Bronze- und frühen Eisenzeit Mitteleuropas
Creators: name: Matzerath, Simon
Publisher: name: University Library Heidelberg
Year: 2013

description: Zum Symbolgut der Urnenfelderkultur gehören so genannte Feuerböcke und Mondidole. Eine überregionale Aufarbeitung dieser vor allem aus Siedlungen zahlreich belegten Objektgruppe steht noch aus. Die hier vorgestellte Arbeit widmet sich einem interessanten Aspekt der Thematik, den Feuerböcken und Mondidolen aus Gräbern in der späten Bronze- und frühen Eisenzeit Mitteleuropas. Eine systematische Analyse dieser Grabfunde hat neue Ergebnisse hinsichtlich der chronologischen Einordnung, Verbreitung und kulturgeschichtlichen Bedeutung geliefert. Die ersten Feuerböcke und Mondidole aus Gräbern gehören in das 9. Jahrhundert v. Chr. In der frühen Eisenzeit konzentriert sich ihre Verbreitung vor allem auf das östliche Mitteleuropa. Dabei sind sie an Kernzonen archäologischer Kulturen gebunden und mit bestimmten Personengruppen verknüpft. Vermutlich zeichnen sich hier konkrete Religionsgemeinschaften ab. Die Feuerböcke und Mondidole geben tiefe Einblicke in die geistige Kultur und sind deshalb als Fundgattung besonders wertvoll.
description: Firedogs and moon idols belong to the symbolic world of the Urnfield Culture. A general approach on this group of objects, which have mainly been found in settlements, is still pending. Recently, the firedogs and moon idols of the late Bronze Age and early Iron Age in Central Europe have been in the focus of research. A systematic analysis of these objects from graves has produced new results, particularly with regard to the chronological position, the distribution, and their cultural meaning. The first firedogs and moon idols in graves appear in the 9th century BC. During the early Iron Age they became typical in eastern Central Europe. They emerge only in some archaeological cultures and are linked to specific groups of persons. Apparently these groups are religious communities. The firedogs and moon idols are an expression not only of material culture but especially of spiritual culture.
LHC and dark matter phenomenology of the NUGHM
Creators: name: Cabrera, Maria Eugenia
name: Casas, Alberto
name: de Austri, Roberto Ruiz
name: Bertone, Gianfranco
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a Bayesian analysis of the NUGHM, a supersymmetric scenario with non-universal gaugino masses and Higgs masses, including all the relevant experimental observables and dark matter constraints. The main merit of the NUGHM is that it essentially includes all the possibilities for dark matter (DM) candidates within the MSSM, since the neutralino and chargino spectrum -and composition- are as free as they can be in the general MSSM. We identify the most probable regions in the NUHGM parameter space, and study the associated phenomenology at the LHC and the prospects for DM direct detection. Requiring that the neutralino makes all of the DM in the Universe, we identify two preferred regions around $m_{χ_1^0}= 1\ {\rm TeV},\; 3\ {\rm TeV}$, which correspond to the (almost) pure Higgsino and wino case. There exist other marginal regions (e.g. Higgs-funnel), but with much less statistical weight. The prospects for detection at the LHC in this case are quite pessimistic, but future direct detection experiments like LUX and XENON1T, will be able to probe this scenario. In contrast, when allowing other DM components, the prospects for detection at the LHC become more encouraging -- the most promising signals being, beside the production of gluinos and squarks, the production of the heavier chargino and neutralino states, which lead to WZ and same-sign WW final states -- and direct detection remains a complementary, and even more powerful, way to probe the scenario.
description: The Sommerfeld enhancement has been included in the computation of the relic density and in the discussion of indirect-detection limits. Some references have been added
title: Das Erscheinen der Ur- und Frühgeschichtsforschung im Schulbuch und im Kinder- und Jugendsachbuch der DDR in den Jahren von 1949 bis 1989
Creators: name: Erbes, Michaela
Publisher: name: University Library Heidelberg
Year: 2013

description: Dieser Beitrag präsentiert eine Analyse von 13 Kinder- und Jugendsachbüchern, einem Schulbuch sowie eines Museumsführers aus dem Themenbereich Archäologie. Die Bücher bzw. Hefte sind in der DDR in den Jahren zwischen 1949 und 1989 erschienen. In der Analyse der Sachbücher kommt dem Blick auf die Funktion der Archäologie innerhalb des Bildungsauftrags der DDR besonderes Gewicht zu. Analog zu den Aufgaben der Ur- und Frühgeschichtsforschung im System der sozialistischen Bildung wurden auf der Grundlage der Theorie des historischen Materialismus die Epochen der Steinzeit, vorrömischen Eisenzeit, römischen Kaiserzeit und des Mittelalters von einigen der vorliegenden Autoren eingeordnet und bewertet. Damit einhergehend wurden soziale, kulturelle und politische Werte an die Leserschaft vermittelt. Besonders in der Vermittlung des Slawenbildes als auch generell in der Darstellung von Ereignisgeschichte im Zusammenhang mit Germanen – Slawen – Deutschen stand die Präsentation der Archäologie für Laien in der DDR im Rahmen des Panslawismus und im Dienste der Völkerverständigung und eindeutigen Abgrenzung zur NS-Ideologie.
description: This paper presents the results of an analysis of 13 archaeological non-fiction books, one school textbook and one museum guide, aimed at children and young readers. The books and brochures were published in the GDR between 1949 and 1989. Emphasis is placed on the function of archaeology within the educational system of the GDR. In line with the general objectives of Prehistory within the system of socialist education, here the Palaeolithic, Pre-Roman Iron Age, Roman Empire and the Medieval period are presented and evaluated by the selected authors on the basis of the theory of historical materialism. Through this process, the authors also transmit social, cultural and political values to the readers. Especially in the transmission of the Slavic image as well as generally in the presentation of political history concerning Germanic tribes, Slavs and modern Germans, the presentation of archaeology for the layman in the GDR is firmly rooted in the framework of „Pan-Slavism“ and in the service of international understanding and dissociation from national-socialist ideology.
A transversal approach to predict surface charge compensation in piezoelectric force microscopy
Creators: name: Tan, Huan
name: Lyu, Jike
name: Sheng, Yunwei
name: Machado, Pamela
name: Song, Tingfeng
name: Bhatnagar, Akash
name: Coll, Mariona
name: Sánchez, Florencio
name: Fontcuberta, Josep
name: Fina, Ignasi
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 530

description: Piezoelectric force microscopy (PFM) has demonstrated to be a powerful tool to characterize ferroelectric materials. However, extrinsic effects, most notably, those resulting from surface charges, often mask or mirror genuine piezoelectric response, challenging PFM data understanding. The contribution of surface charges to PFM signal is commonly compensated by using appropriate external bias voltage, which is ad-hoc selected and sample dependent. Here, we determine the compensating voltage in thin films of different ferroelectric materials and we compare with the corresponding I-V characteristics recorded using suitable electrodes. It turns out that the sign and magnitude of the bias voltage required to compensate the surface charges are related to the asymmetry of the I-V characteristics. We propose that this relation results from the fact that the semiconducting properties of the material determine both the I-V dependence, and the sign of charged adsorbates. We show how to make use of this correlation to predict the required compensation voltage of a non-ferroelectric material and we show that spurious piezoelectric-like contributions are largely cancelled. The results provide guidelines to mitigate common extrinsic contributions in PFM imaging.
Notes on Mayer Expansions and Matrix Models
Creators: name: Bourgine, Jean-Emile
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Mayer cluster expansion is an important tool in statistical physics to evaluate grand canonical partition functions. It has recently been applied to the Nekrasov instanton partition function of $\mathcal{N}=2$ 4d gauge theories. The associated canonical model involves coupled integrations that take the form of a generalized matrix model. It can be studied with the standard techniques of matrix models, in particular collective field theory and loop equations. In the first part of these notes, we explain how the results of collective field theory can be derived from the cluster expansion. The equalities between free energies at first orders is explained by the discrete Laplace transform relating canonical and grand canonical models. In a second part, we study the canonical loop equations and associate them to similar relations on the grand canonical side. It leads to relate the multi-point densities, fundamental objects of the matrix model, to the generating functions of multi-rooted clusters. Finally, a method is proposed to derive loop equations directly on the grand canonical model.
description: 24 pages, 8 figures, v2: references added, published in NPB
Load distribution of CLT under in-plane concentrated compression loading
Creators: Farboodi, Hossein
Publisher: name: University of Alberta Library
Year: 2023

CLT panels are widely used in mid- and high-rise timber building structures, but the application of in-plane compression loads to its edges presents a significant challenge. The Canadian Standard Association (CSA O86) assumes that the load is uniformly distributed across the entire panel, but there is no guidance for cases where the load is concentrated on a small panel section, such as a CLT wall. As a result, the loads tend to dissipate as they move towards the underlying supporting structure, leading to lower stress levels than those experienced at the contact surface. Despite the limited number of studies on the in-plane load spread angle for CLT, no appropriate design procedures are currently available. This study aims to investigate the load distribution behaviour of CLT panels under in-plane compression loading and develop a reliable model to estimate the load spread angle in CLT structures.

After validating the finite element models simulated by ABAQUS software through 18 laboratory tests and the digital image correlation (DIC) method, the project examined the load spread angle of CLT panels under in-plane concentrated compressive loads. The study investigated this angle based on three parameters: the aspect ratio of CLT, the loading area width to panel width ratio, and the transverse layer percentage under two load application scenarios: the load applied at the middle and the edge of the CLT panel.

The results indicate that the transverse layer percentage is the most influential factor affecting the load spread angle. Increasing this parameter from 13% to 50% resulted in the angle increasing from 10° to 18° for an aspect ratio of 0.59, 12° to 17° for an aspect ratio of 0.88, and 12° to 14° for an aspect ratio of 1.25. Moreover, this study recommends two empirical load spread angle and K-factor equations for each loading case through multiple regression analyses to predict the load spread angle and the maximum stress value of CLT panels under in-plane concentrated compressive loads.
Вплив кріоекстракту плаценти на стан шлункової секреції після кріоваготомії
Creators: name: Koshurba, Illia
name: Hladkykh, Fedir
Publisher: name: Zenodo
Year: 2023

description: Кошурба ІВ, Гладких ФВ. Вплив кріоекстракту плаценти на стан шлункової секреції після кріоваготомії. Матеріали XХ Міжнародної наукової конференції студентів, молодих науковців та фахівців «Актуальні питання сучасної медицини»; 2023 Травня 25–26; Харків: Харківський національний університет ім. В.Н. Каразіна МОН України; 2022, с. 59–00. DOI: https://doi.org/10.5281/zenodo.8022286.
Advances in studies on the physiological and molecular regulation of barley tillering
Creators: name: Riaz, Asad
name: Alqudah, Ahmad M.
name: Kanwal, Farah
name: Pillen, Klaus
name: Ling-Zhen, Ye
name: Guo-Ping, Zhang
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 580

description: Tillering is a crucial trait closely associated with yield potential and environmental adaptation in cereal crops, regulated by the synergy of endogenous (genetic) and exogenous (environmental) factors. The physiological and molecular regulation of tillering has been intensively studied in rice and wheat. However, tillering research on barley is scarce. This review used the recent advances in bioinformatics to map all known and potential barley tiller development genes with their chromosomal genetic and physical positions. Many of them were mapped for the first time. We also discussed tillering regulation at genetic, physiological, and environmental levels. Moreover, we established a novel link between the genetic control of phytohormones and sugars with tillering. We provided evidence of how environmental cues and cropping systems help optimize the tiller number. This comprehensive review enhances the understanding of barley’s physiological and genetic mechanisms controlling tillering and other developmental traits.
Effect of charge selective contacts on the quasi Fermi level splitting of CuGa3Se5 thin film photocathodes for hydrogen evolution and methylviologen reduction
Creators: name: Cheng, Ye
name: Xiao, Chengcan
name: Mahmoudi, Behzad
name: Scheer, Roland
name: Maijenburg, A. Wouter
name: Osterloh, Frank E.
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 530

description: The copper chalcopyrite CuGaSe2 and the defect-related phase CuGa3Se5 are promising photocathode materials for solar hydrogen generation. Existing devices exhibit photocurrents nearing 68% (CuGa3Se5)–86% (CuGaSe2) of their theoretical limit but they are plagued by photovoltage losses that reduce their energy conversion efficiency. To evaluate the reasons, we determine the light intensity dependent quasi-Fermi level splitting (QFLS) in p-CuGa3Se5/liquid junctions for the first time, using the vibrating Kelvin probe surface photovoltage technique. The QFLS, or internal photovoltage, corresponds to the maximum electrochemical work a photoelectrode can perform under a given illumination condition. In the presence of water or methylviologen (2+/+) as electron acceptors, the QFLS of Mo/p-CuGa3Se5/liquid junctions reaches 0.22 to 0.29 V, respectively, under 49 mW cm−2 400 nm illumination, while the QFLS of a FTO/p-CuGa3Se5 photoelectrode is only 0.15–0.16 V. The lower voltage of the latter is attributed to a Schottky junction at the back contact, which limits majority charge carrier (hole) extraction from the semiconductor. Photovoltage losses also result from Fermi level pinning of the minority carriers at surface states 0.5 eV above the CGSe valence band. This problem can be overcome by chemical bath deposition of a CdS overlayer, which functions as a selective contact for electron extraction from CuGa3Se5 and which raises the QFLS to 0.44 V at 49 mW cm−2. No significant QFLS enhancement occurs upon adsorption of Cd2+ ions to the CuGa3Se5 electrode surface, suggesting that Cd2+ adsorption alone does not remove the Fermi level pinning effect. Overall, these results provide a better understanding of the effect of surface treatments and charge selective contacts on the photovoltage of CuGa3Se5 photoelectrodes and indicate pathways to improve its solar fuel conversion efficiency.