cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Graphene type dependence of carbon nanotubes/graphene nanoplatelets polyurethane hybrid nanocomposites: Micromechanical modeling and mechanical properties
Creators: name: Navidfar, Amir
name: Trabzon, Levent
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Micromechanical modeling and mechanical properties of polyurethane (PU) hybrid nanocomposite foams with multi-walled carbon nanotubes (MWCNTs) and graphene nanoplatelets (GNPs) were investigated by mean of tensile strength, hardness, impact strength and modified Halpin-Tsai equation. Three types of graphene, with varied flake sizes and specific surface areas (SSA), were utilized to study the effect of graphene types on the synergistic effect of MWCNT/GNP hybrid nanofillers. The results indicate a remarkable synergetic effect between MWCNTs and GNP-1.5 (1:1) with a flake size of 1.5 μm and a higher SSA (750 m^2/g), which tensile strength of PU was improved by 43% as compared to 19% for PU/MWCNTs and 17% for PU/GNP-1.5 at 0.25 wt% nanofiller loadings. The synergy was successfully predicted using unit cell modeling, in which the calculated data agrees with the experimental results.
description: 26 Pages, 9 Figures, 10 Equations, 3 Tables, Published in Composites Part B: Engineering
Torsion and the Gravitational Interaction
Creators: name: Arcos, H. I.
name: Pereira, J. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: By using a nonholonomous-frame formulation of the general covariance principle, seen as an active version of the strong equivalence principle, an analysis of the gravitational coupling prescription in the presence of curvature and torsion is made. The coupling prescription implied by this principle is found to be always equivalent with that of general relativity, a result that reinforces the completeness of this theory, as well as the teleparallel point of view according to which torsion does not represent additional degrees of freedom for gravity, but simply an alternative way of representing the gravitational field.
description: Version 2: minor presentation changes, a reference added, 11 pages (IOP style)
PLACEMENT AND OUTREACH OF GROUP-BASED CREDIT ORGANIZATIONS: THE CASES OF ASA, BRAC, AND PROSHIKA IN BANGLADESH
Creators: name: Sharma, Manohar P.
name: Zeller, Manfred
name: Sharma, Manohar P.
name: Zeller, Manfred
Publisher: name: Unknown
Year: 1999
Subjects: Financial Economics

description: Bangladesh has witnessed major strides in providing financial services to the rural poor. These services are provided largely through innovative group-based credit programs of several nongovernmental organizations. The implicit but widespread assumption has been that they are indeed placed in special poverty-stricken areas. Is this assumption valid? If not, what factors actually affect programs' placement across communities? This paper uses an unique thana-level data set to analyze the placement of three group-based credit programs in Bangladesh. Analysis of branch placement indicates that, unlike commercial banks, nongovernmental institutions do respond to general conditions of poverty. However, it appears that NGO services are located more in poor pockets of relatively well-developed areas than in remoter, less-developed regions. Client density of the established branches, however, did not exhibit such a feature and actually tended to be better in less advantageous locations.
Affective Lives: A Critical Pheno|Psycho|Anthro Lens on the Arduousness of Experience
Creators: name: Von Poser, Anita
Publisher: name: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology
Year: 2023

description: Comment to Michael Schnegg's Article
description: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology, Vol. 148 No. 1 (2023): Zeitschrift für Ethnologie/Journal of Social and Cultural Anthropology
Experience and Concepts: How Do They Relate?
Creators: name: Verne, Markus
Publisher: name: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology
Year: 2023

description: Comment to Michael Schnegg's Article
description: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology, Vol. 148 No. 1 (2023): Zeitschrift für Ethnologie/Journal of Social and Cultural Anthropology
Between Weak and Strong Anthropological Phenomenologies
Creators: name: Zenker, Olaf
Publisher: name: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology
Year: 2023

description: Comment to Michael Schnegg's Article
description: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology, Vol. 148 No. 1 (2023): Zeitschrift für Ethnologie/Journal of Social and Cultural Anthropology
Question of Experience
Creators: name: Desjarlais, Robert
Publisher: name: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology
Year: 2023

description: Comment to Michael Schnegg’s Article
description: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology, Vol. 148 No. 1 (2023): Zeitschrift für Ethnologie/Journal of Social and Cultural Anthropology
Phenomenological Anthropology Philosophical Concepts for Ethnographic Use
Creators: name: Schnegg, Michael
Publisher: name: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology
Year: 2023

description: As a philosophical discipline, phenomenology is interested in how and as what things appear to a subject from the first-person perspective. Phenomenological analyses can be applied to objects, others, the self, feelings and much more. Yet, how do they appear? Within experience! While this is also accepted in anthropology, I show how we can benefit from some of the theoretical concepts that phenomenology has developed, including intentionality, being-in-the-world, embodiment, empathy, responsivity and atmosphere, to explore specific experiences more thoroughly. To demonstrate this, I introduce the foundations of these concepts: of-ness (Husserl), in-ness (Heidegger), embodied-ness (Merleau-Ponty), with-ness (Stein), responsive-ness (Waldenfels) and between-ness phenomenology (Schmitz). Then I discuss how these ideas have been mobilized in anthropology before applying them to a single ethnographic scene about the weather in Namibia. This allows a phenomenological anthropology to be developed positing that as what a thing appears for the subject depends on how it appears. This how encompasses transcendental structures of experience and the social contexts that shape what people live through, including the normative views they face when acting in the public sphere. By tracing entanglements between first-person perspectives and social, material and normative structures, phenomenological anthropology can make visible what otherwise remains obscured. In concluding, I carve out the unique critical potential that emerges from such an analysis and show the potential it offers for imagining a possible otherwise, two salient components of my version of a future phenomenological anthropology.
description: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology, Vol. 148 No. 1 (2023): Zeitschrift für Ethnologie/Journal of Social and Cultural Anthropology
Food Safety, Market Power and Private Standards: An Analysis of the Emerging Strategies of Food Operators
Creators: name: Charlier, Christophe
name: Valceschini, Egizio
name: Charlier, Christophe
name: Valceschini, Egizio
Publisher: name: Unknown
Year: 2010
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: private standards
subject: food safety
subject: operators responsibility

description: Together with expected implications on food safety, the European Regulation 178/2002 has important consequences shaping the agrifood sector. This regulation gives latitude to operators in front of specific food safety objectives and promotes self‐control. Private standards are a way of addressing this problem. The paper shows that as soon as producers and retailers have different private standards, a problem of coordination among operators has to be solved. This coordination is important for the sanitary aims but involves strategic aspects too. The coordination problem is tougher when the standards developed by producers and retailers can be considered as two substitutes, even if each operators considers that a coordination of their practices shall be reached.
The Wheel of Production Must Turn: The Striving for Normality as a Commitment to Reality in Post-2011 Egypt
Creators: name: Kreil, Aymon
name: Schielke, Samuli
Publisher: name: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology
Year: 2023

description: In Egypt, calls to restore normality emerged almost immediately after the 2011 uprising started. In the following years, they gained increasing appeal, paving the way to an authoritarian restoration. The revolution of January 25 ended with the victory of a party that promised stability and a strong military ruler, in large part because those promises echoed many people’s anxieties and hopes about the future and resonated with their day-to-day practices of handling urgent everyday concerns. This success did not just rest on ideological agreements over political ideals, but also on what we describe as commitments to a reality that those involved would consider not to need explanation or legitimation – that is, as normal. Normality, we argue, is best understood as an inherently ambiguous, ‘essentially contested’ concept that unites three distinct dimensions: (1) what is, that is, an ordinary recurring reality that may or may not be normative; (2) what is and ought to be, that is, what is naturalized and pursued as normative and necessary; and (3) what ought to be but is not, that is, an expectation of what ought to be unproblematic and self-evident, yet is not within reach in the here and now. This productive ambiguity of normality allows for major transformations to take place in the name of the restoration and maintenance of a self-evident reality.
description: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology, Vol. 148 No. 1 (2023): Zeitschrift für Ethnologie/Journal of Social and Cultural Anthropology
The Role of Consumer Acceptance in the Food Innovation Process: Young Consumer Perception of Functional Food in Italy
Creators: name: Del Giudice, Teresa
name: Pascucci, Stefano
name: Del Giudice, Teresa
name: Pascucci, Stefano
Publisher: name: Unknown
Year: 2010
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: functional foods
subject: consumer acceptance
subject: ordered probit
subject: Italy

description: This paper analysed the factors influencing the acceptance of functional foods (FFs) of three distinct groups of young Italian consumers. We implemented an ordered probit model based on data collected in a field survey carried out in southern Italy in 2008. The results showed that different sources of information and knowledge (e.g. the internet, newspapers and universities), judgements and motivations (e.g. taste and health effects credibility) are key elements in the acceptance of FFs. This implies the need to identify highly differentiated communication and marketing strategies for both public agencies and private firms in order to promote FF consumption.
Additional file 1 of Dietary restrictions in endurance runners to mitigate exercise-induced gastrointestinal symptoms
Creators: name: Parnell, Jill A.
name: Wagner-Jones, Kim
name: Madden, Robyn F.
name: Erdman, Kelly Anne
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1.
Glucodensities: a new representation of glucose profiles using distributional data analysis
Creators: name: Matabuena, Marcos
name: Petersen, Alexander
name: Vidal, Juan C.
name: Gude, Francisco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: Quantitative Methods (q-bio.QM)
subject: Other Statistics (stat.OT)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Biosensor data has the potential ability to improve disease control and detection. However, the analysis of these data under free-living conditions is not feasible with current statistical techniques. To address this challenge, we introduce a new functional representation of biosensor data, termed the glucodensity, together with a data analysis framework based on distances between them. The new data analysis procedure is illustrated through an application in diabetes with continuous-time glucose monitoring (CGM) data. In this domain, we show marked improvement with respect to state of the art analysis methods. In particular, our findings demonstrate that i) the glucodensity possesses an extraordinary clinical sensitivity to capture the typical biomarkers used in the standard clinical practice in diabetes, ii) previous biomarkers cannot accurately predict glucodensity, so that the latter is a richer source of information, and iii) the glucodensity is a natural generalization of the time in range metric, this being the gold standard in the handling of CGM data. Furthermore, the new method overcomes many of the drawbacks of time in range metrics, and provides deeper insight into assessing glucose metabolism.
Signatures of macroscopic quantum coherence in ultracold dilute Fermi gases
Creators: name: Onofrio, Roberto
name: Presilla, Carlo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a double-well configuration for optical trapping of ultracold two-species Fermi-Bose atomic mixtures. Two signatures of macroscopic quantum coherence attributable to a superfluid phase transition for the Fermi gas are analyzed. The first signature is based upon tunneling of Fermi pairs when the power of the deconfining laser beam is significantly reduced. The second relies on the observation of interference fringes in a regime where the fermions are trapped in two sharply separated minima of the potential. Both signatures rely on small decoherence times for the Fermi samples, which should be possible by reaching low temperatures using a Bose gas as a refrigerator, and a bichromatic optical dipole trap for confinement, with optimal heat-capacity matching between the two species.
The role of the low-density lipoprotein receptor family on Cyclosporine A uptake and toxicity in renal cells
Creators: name: Chung, Nancy S.C.
Publisher: name: University of British Columbia
Year: 2009

description: Background: Cyclosporine A (CsA) is an effective immunosuppressant drug to treat patients who have undergone transplantation or to treat autoimmune diseases. However, the drug is limited by its narrow therapeutic index and usually becomes discontinued due to high nephrotoxicity. CsA is known to highly associate with lipoproteins, especially LDL and increased toxic effects of CsA have been reported in patients who are hypocholesterolemic. A significant reduction in [3H]CsA uptake and toxicity was observed when LLC-PK1 cells were treated with increased concentrations of LDL. Purpose: Based on the experimental and clinical evidence, it is hypothesized that when the LDL receptor family activity is decreased upon IgG-C7 treatment, both CsA uptake and toxicity are reduced in LLC-PK1 cells, a renal proximal tubule cell line. Methods: The appropriateness of LLC-PK1 cells as a cell model was assessed by conducting dose-response, LDL specific binding and competitive studies with Dil- LDL, and Western blot analysis of the LDL receptor. Assay conditions with IgG-C7, a monoclonal antibody to the LDL receptor, were optimized including temperature, preincubation time and concentration in LLC-PK1 cells. Finally, the effect of IgG-C7 on [3H]CsA uptake and toxicity with LDL was determined. Results: Significant results in both mean percent bound (2.6% ± 0.6% vs. 5.1% ± 1.3%) and mean percent toxicity (1.8% ± 0.5% vs. 3.2% ± 0.5%) were observed in the [3H]CsA alone group in the presence of IgG-C7 versus its absence (p<0.05 with unpaired t-test). However, no significant differences were observed in the [3H]CsA- LDL complex or [3H]CsA with LDL coaddition groups. In addition, LDL was not associated with a significant reduction in both [3H]CsA bound, uptake and toxicity. Conclusion: These results suggest that CsA may be binding directly to the LDL receptor family independent of its association with LDL and thus, eliciting its toxic effects at the membrane level. This study provides preliminary evidence of the family of LDL receptors playing a role in CsA binding and toxicity in LLC-PK1 cells.
Scales of Affordances: Visibility and Pandemic Encounters among Buddhists in the Javanese Highland
Creators: name: Rizzo, Roberto
Publisher: name: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology
Year: 2023

description: In this contribution, I explore the encounter between a pandemic-mitigation event initiated by the local administration of Central Java, Indonesia, and a Buddhist village in the highland region of Temanggung. For the minority Buddhist community in the area, the event signified a possibility to pursue media presence. In the previous few years, the village of Surjosari had launched various projects of community and religious revitalization. On the one hand, such projects progressively included the community within the nationwide reach of Theravāda Buddhism. On the other hand, these projects were increasingly aimed at the implementation of a specific ethnopreneurial vision of highland eco-tourism, particularly endorsed by a host of local activists. The article shows how the government’s Candi Siaga initiative offered an unprecedented opportunity to advance the residents’ idea of community development, which braids together religious, ethnic and economic strands. By tracing long-term pre- and post-event developments in the village, I frame this opportunity in terms of affordance. Rather than mobilizing vocabularies of coping and responses that are intrinsic in recent virological discourses, affordances can provide an open-ended and undetermined horizon for encounters between broad processes such as a pandemic and the particular practices of a rural community. This requires us to extend the definition of the concept beyond its applicability to the restricted domain of immediate ecological perception.
description: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology, Vol. 148 No. 1 (2023): Zeitschrift für Ethnologie/Journal of Social and Cultural Anthropology
Velocity Dispersion of Excited H2
Creators: name: Lacour, S.
name: Ziskin, V.
name: Hebrard, G.
name: Oliveira, C.
name: Andre, M. K.
name: Ferlet, R.
name: Vidal-Madjar, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a study of the high rotational bands (J > 2) of H2 toward 4 early type galactic stars: HD 73882, HD 192639, HD 206267, and HD 207538. In each case, the velocity dispersion - characterized by the spectrum fitting parameter b - increases with the level of excitation, a phenomenon that has previously been detected by the Copernicus and IMAPS observatories. In particular, we show with 4 sigma confidence that for HD 192639 it is not possible to fit all J levels with a single b value, and that higher b values are needed for the higher levels. The amplitude of the line broadening, which can be as high as 10 km s^-1, makes explanations such as inhomogeneous spatial distribution unlikely. We investigate a mechanism in which the broadening is due to the molecules that are rotationally excited through the excess energy acquired after their formation on a grain (H2-formation pumping). We show that different dispersions would be a natural consequence of this mechanism. We note however that such process would require a formation rate 10 times higher then what was inferred from other observations. In view of the difficulty to account for the velocity dispersion as thermal broadening (T would be around 10,000 K), we conclude then that we are most certainly observing some highly turbulent warm layer associated with the cold diffuse cloud. Embedded in a magnetic field, it could be responsible for the high quantities of CH+ measured in the cold neutral medium.
description: accepted in ApJ
Horizontal and Vertical Networks for Innovation in the Traditional Food Sector
Creators: name: Gellynck, Xavier
name: Kuhne, Bianka
name: Gellynck, Xavier
name: Kuhne, Bianka
Publisher: name: Unknown
Year: 2010
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Research Methods/ Statistical Methods
subject: horizontal and vertical networks
subject: traditional food products
subject: innovation
subject: focus groups
subject: in‐depth interviews

description: The locus of innovation is not the individual firm anymore but increasingly the network in which the firm is embedded. Hence, in this paper innovation is investigated in the broader context of networks and applied to the traditional food sector. Networking refers to a process of identifying and acting on complementary interests with or without formal means of cooperation and plays an important role for the diffusion and adoption of innovations, because they increase the flow of information. Two main types of networks exist. Vertical networks relate to cooperation of partners belonging to the same chain. Meanwhile, horizontal networks refer to cooperation among firms which are primarily competitors. Data were collected during focus groups and in‐depth interviews in three European countries: Belgium, Hungary, and Italy. In each country, data are collected from retailers/wholesalers, food manufacturers and suppliers in the beer, hard and half hard cheese, ham, sausage, or white paprika chain. In the investigated countries both vertical and horizontal networks exist. However, the intensity of using the network differs. On the one hand vertical networks are well developed based on quality assurance schemes and traceability, though these networks often face difficulties due to high lack of trust. On the other hand, horizontal networks are well developed when a producer consortium is involved. However, these networks can be inhibited through strong competition. The partners in traditional food networks focus mainly on innovation related to product characteristics such as new size, form and packaging without changing the traditional character of the product. The main barriers for innovation in the traditional food networks are the lack of understanding the benefits of networking activities for innovation, the lack of trust, the lack of knowledge of appropriate methods and skills, and the lack of financial and physical resources. Our study points out that successful SMEs use their networks to overcome lacks of knowledge and information and to create possibilities of joint use of resources.
Nano- and microscale apertures in metal films fabricated by colloidal lithography with perovskite nanocrystals
Creators: name: Spirito, Davide
name: Shamsi, Javad
name: Imran, Muhammad
name: Akkerman, Quinten A.
name: Manna, Liberato
name: Krahne, Roman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We demonstrate patterning of metal surfaces based on lift-off of perovskite nanocrystals that enables the fabrication of nanometer-size features without the use of resist-based nanolithography. The perovskite nanocrystals act as templates for defining the shape of the apertures in metal layers, and we exploit the variety of sizes and shapes that can be controlled in the colloidal synthesis to demonstrate the fabrication of nanoholes, nanogaps and guides with size smaller than the wavelength of light in the visible spectrum. The process can be readily integrated with standard lithography and etching techniques for the creation of more complex structures.
description: 10 pages, 4 figures
‘No Justice – No Rest!’: How Activist Conceptions of Justice Influence Categories of Collective Identification among Tea-Plantation Labourers in Assam
Creators: name: Wolf, Anna-Lena
Publisher: name: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology
Year: 2023

description: Activists working on behalf of tea-plantation labourers in the northeast Indian state of Assam
have promoted various visions of justice. Trade unionists prefer to maintain an ‘old-style’ tea-plantation
economy based on a combination of low cash wages and additional non-monetary benefits. Adivasi
(indigenous) activists used to advocate ‘Scheduled Tribes’ status for Adivasis in Assam (most of whom
are tea labourers) as a means to improve their livelihoods through affirmative action. In 2014, under the
guidance of international NGOs, Adivasi activists turned instead to advocating statutory minimum
wages for tea labourers. These transformative visions of justice not only imply different possible futures
for tea labourers, but also affect their categories of collective identification, turning them from ‘tea tribes’
into ‘Adivasis’ and then into ‘subjects of labour rights’. While these collective identities are often used
interchangeably, foregrounding particular aspects of them in different situations influences the constitution
and transformation of leadership patterns within the interest groups that are working on behalf
of Assam tea labourers.
description: Zeitschrift für Etnologie/Journal of Social and Cultural Anthropology, Vol. 148 No. 1 (2023): Zeitschrift für Ethnologie/Journal of Social and Cultural Anthropology
On a kinetic model for a simple market economy
Creators: name: Cordier, Stephane
name: Pareschi, Lorenzo
name: Toscani, Giuseppe
Publisher: name: arXiv
Year: 2004
Subjects: subject: Analysis of PDEs (math.AP)
subject: General Finance (q-fin.GN)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 91B60;91B26;35K55;35K30;82C31;82C80;82D99;82B30

description: In this paper, we consider a simple kinetic model of economy involving both exchanges between agents and speculative trading. We show that the kinetic model admits non trivial quasi-stationary states with power law tails of Pareto type. In order to do this we consider a suitable asymptotic limit of the model yielding a Fokker-Planck equation for the distribution of wealth among individuals. For this equation the stationary state can be easily derived and shows a Pareto power law tail. Numerical results confirm the previous analysis.
Agribusiness Firm Reactions to Regulations: The Case of Investments in Traceability Systems
Creators: name: Heyder, Matthias
name: Hollmann-Hespos, Thorsten
name: Theuvsen, Ludwig
name: Heyder, Matthias
name: Hollmann-Hespos, Thorsten
name: Theuvsen, Ludwig
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Food Consumption/Nutrition/Food Safety
subject: Research Methods/ Statistical Methods
subject: investment behaviour
subject: traceability
subject: tracking and tracing
subject: agribusiness
subject: food industry

description: The regulatory framework of food production has changed a lot in recent years. As a result, traceability of food products as become mandatory in the European Union, nonetheless leaving room for more advanced solutions. This study answers the question what exactly determines firms’ investments in traceability systems by first developing a theoretical framework—the so‐called Tracking and Tracing Systems Investment Model—and then analyzing empirical data from the German food industry that provide in‐depth insights into companies’ investment behaviour. Altogether, 234 companies representing more than fifteen different sub‐sectors of the food‐processing industry participated in an online survey. The results show that German food firms can be divided into four clusters based on their dominant motives for investing (or not investing) in traceability systems. Moreover, the results of a partial‐least squares (PLS) analysis provide a good understanding of the major factors influencing the investment behaviour of companies concerning tracking and tracing systems.
Robust 3D tracking control of an underactuated autonomous airship
Creators: name: Adamski, Wojciech
name: Pazderski, Dariusz
name: Herman, Przemysław
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The paper presents a new, robust control algorithm for position trajectory tracking in a 3D space, dedicated to underactuated airships. In order to take into account real characteristics of such vehicles, and to reflect practically motivated constraints, the algorithm assumes a highly uncertain system dynamics model. The tracking problem is solved in a uniform way, without dividing it into subtasks considered in 2D spaces, thanks to the introduction of an auxiliary tracking error. The proposed controller is based on the sliding mode approach. Its stability is investigated using Lyapunov theorem. Numerical simulations are conducted in order to verify properties of a closed-loop system for a generic model of the airship. Performance of the control system is examined via experiments in various scenarios using a prototype airship. The obtained results indicate that the control objectives are satisfied in practice with a reasonable accuracy. Moreover, it is shown that the controller is robust to some bounded additive measurement perturbations and delays in the control loop.
Regulatory Framework and Private Innovation: The Case of Animal Welfare Friendly Beef Supply Chain in Italy
Creators: name: Arfini, Filippo
name: Mancini, Maria Cecilia
name: Arfini, Filippo
name: Mancini, Maria Cecilia
Publisher: name: Unknown
Year: 2010
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: animal welfare
subject: private innovation
subject: regulatory framework

description: The paper examines innovation in the agrifood sector through an analysis of relationships between public institutions and the private sector. The first part is theoretical and analyses the roles played by public and private actors in innovation. The second part is a case study of the beef supply chain of COOP, the biggest retailer on the Italian market. It exemplifies product innovation driven by a regulatory framework and shows how organisation and structural renewal required by animal welfare legislation can lead to voluntary initiatives and additional innovation along the supply chain. The case study also features the role of institutions in communications and shows how market awareness drives improvement in organisation of production chains.
Aligning Stakeholder Communication with Strategic Goals: A Case for Transparency and Trust: Best Practices for Managing Communications during Complex, High-Stakes Transformations
Creators: name: Priyanka Taranekar
Publisher: name: Zenodo
Year: 2021

description: This paper examines the significant role that strategic communication plays in driving successful large-scale, high-stakes organizational transformations. While organizations often focus on technical and operational aspects of change initiatives, effective stakeholder communication frequently receives insufficient attention, leading to resistance, misalignment, and potential failure of transformation efforts. The author has undertaken comprehensive analysis of existing literature and used industry best practices to propose a framework for developing and implementing stakeholder communication strategies. The framework emphasizes the importance of transparent messaging, audience-specific communication channels, and consistent leadership engagement throughout the transformation journey. It highlights the importance of multi-channel approaches to communication, from leadership-led town halls to targeted one-on-one sessions. By adopting this structured appraoch to communication, organizations undergoing large-scale transformation can better manage stakeholder expectations, reduce resistance to change, and ultimately achieve their strategic transformation objectives. The paper concludes by highlighting the economic benefits of robust communication strategies, including reduced productivity losses, improved employee retention, and accelerated adoption of change initiatives.
Strictly Ergodic Subshifts and Associated Operators
Creators: name: Damanik, David
Publisher: name: arXiv
Year: 2005
Subjects: subject: Dynamical Systems (math.DS)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: We consider ergodic families of Schrödinger operators over base dynamics given by strictly ergodic subshifts on finite alphabets. It is expected that the majority of these operators have purely singular continuous spectrum supported on a Cantor set of zero Lebesgue measure. These properties have indeed been established for large classes of operators of this type over the course of the last twenty years. We review the mechanisms leading to these results and briefly discuss analogues for CMV matrices.
description: 34 pages
An increasingly divided society : democratization and surging nationalism in Taiwan
Creators: name: Han, Enze
Publisher: name: University of British Columbia
Year: 2009

description: This thesis draws upon theories of democratization and nationalism, and focuses on the dynamics of the relationship between democratization and nationalism in an ethnically plural society. During a democratic transition in an ethnically plural society, it is nearly inevitable that groups with different ethnic identities will experience extensive conflicts. The argument of this thesis is that in Taiwan, because of the long-existing divergent national identities within the society, the democratic transition that started from the late 1970s has stimulated and accelerated the rise of Taiwanese nationalism, which has led to the increasing conflicts between it and the existing Chinese nationalism that the KMT government has for long upheld as its legitimacy symbol. The thesis is composed of four main chapters. The first chapter deals with theories of democratization and nationalism, and the relationship between the two in plural societies. It argues that democratization in an ethnically plural society will very likely bring a politicization of ethnicity and increasing ethnic conflicts. The second chapter reviews Taiwan's political history and analyzes the origins of Taiwanese nationalism. Following this discussion, the third chapter will highlight the DPP's Taiwanese nationalist agenda and President Lee Teng-hui's 12-year rule (1988-2000). The fourth chapter will analyze how divisive Taiwanese society has become after Lee's rule. A statistical analysis of the 2000 Presidential Election will provide strong evidence that in Taiwan, people's national identity decides their party affiliations, which has made the society intractably politically divided and very difficult to bridge. In the concluding chapter, how Chen Shui-bian's first four-year term has done nothing but worsen the existing division will be analyzed.
Optical Studies of Zero-Field Magnetization of CdMnTe Quantum Dots: Influence of Average Size and Composition of Quantum Dots
Creators: name: Gurung, T.
name: Mackowski, S.
name: Jackson, H. E.
name: Smith, L. M.
name: Heiss, W.
name: Kossut, J.
name: Karczewski, G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We show that through the resonant optical excitation of spin-polarized excitons into CdMnTe magnetic quantum dots, we can induce a macroscopic magnetization of the Mn impurities. We observe very broad (4 meV linewidth) emission lines of single dots, which are consistent with the formation of strongly confined exciton magnetic polarons. Therefore we attribute the optically induced magnetization of the magnetic dots results to the formation of spin-polarized exciton magnetic polarons. We find that the photo-induced magnetization of magnetic polarons is weaker for larger dots which emit at lower energies within the QD distribution. We also show that the photo-induced magnetization is stronger for quantum dots with lower Mn concentration, which we ascribe to weaker Mn-Mn interaction between the nearest neighbors within the dots. Due to particular stability of the exciton magnetic polarons in QDs, where the localization of the electrons and holes is comparable to the magnetic exchange interaction, this optically induced spin alignment persists to temperatures as high as 160 K.
description: 26 pages, 7 figs - submitted for publication
The continuum limit of the conformal sector at second order in perturbation theory
Creators: name: Morris, Tim R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently a novel perturbative continuum limit for quantum gravity has been proposed and demonstrated to work at first order. Every interaction monomial $σ$ is dressed with a coefficient function $f^σ_Λ(φ)$ of the conformal factor field, $φ$. Each coefficient function is parametrised by an infinite number of underlying couplings, and decays at large $φ$ with a characteristic amplitude suppression scale which can be chosen to be at a common value, $Λ_\text{p}$. Although the theory is perturbative in couplings it is non-perturbative in $\hbar$. At second order in perturbation theory, one must sum over all melonic Feynman diagrams to obtain the particular integral. We show that it leads to a well defined renormalized trajectory and thus continuum limit, provided it is solved by starting at an arbitrary cutoff scale $Λ=μ$ which lies in the range $0
description: 64 pages, 3 figures. Clarifications added. To be publ in PRD
Dynamics in Inter‐Firm Collaboration: The Impact of Alliance Capabilities on Performance
Creators: name: Ziggers, Gerrit Willem
name: Tjemkes, Brian
name: Ziggers, Gerrit Willem
name: Tjemkes, Brian
Publisher: name: Unknown
Year: 2010
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Research Methods/ Statistical Methods
subject: alliance capability
subject: relational quality
subject: alliance management
subject: alliance performance
subject: Resource Based View
subject: non‐equity alliances

description: In this study we question the direct relationship between a firm’s alliance capability and alliance performance. We contend that this relationship is mediated through post‐formation factors such as alliance management and relational quality. Drawing from the Resource Based View a model is presented that explicates these indirect relationships. Partial least squares analysis was used to test three hypotheses, using a sample of Dutch alliance managers responsible for non‐equity alliances in agribusiness and the food industry. Our empirical findings affirm the hypothesized indirect relationships between a firm’s alliance capability and alliance performance.
Quantum potential in dust collapse with a negative cosmological constant
Creators: name: Chowdhury, Sandip
name: Pal, Kunal
name: Pal, Kuntal
name: Sarkar, Tapobrata
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the functional Schrodinger formalism, we obtain the wave function describing collapsing dust in an anti-de Sitter background, as seen by a co-moving observer, by mapping the resulting variable mass Schrodinger equation to that of the quantum isotonic oscillator. Using this wave function, we perform a causal de Broglie-Bohm analysis, and obtain the corresponding quantum potential. We construct a bouncing geometry via a disformal transformation, incorporating quantum effects. We derive the external solution that matches with this smoothly, and is also quantum corrected. Due to a pressure term originating from the quantum potential, an initially collapsing solution with a negative cosmological constant bounces back after reaching a minimum radius, and thereby avoids the classical singularity predicted by general relativity.
description: 18 pages, Matches published version
The perimeter of large planar Voronoi cells: a double-stranded random walk
Creators: name: Hilhorst, H. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Let $p\_n$ be the probability for a planar Poisson-Voronoi cell to have exactly $n$ sides. We construct the asymptotic expansion of $\log p\_n$ up to terms that vanish as $n\to\infty$. We show that {\it two independent biased random walks} executed by the polar angle determine the trajectory of the cell perimeter. We find the limit distribution of (i) the angle between two successive vertex vectors, and (ii) the one between two successive perimeter segments. We obtain the probability law for the perimeter's long wavelength deviations from circularity. We prove Lewis' law and show that it has coefficient 1/4.
description: Slightly extended version; journal reference added
Evaluating Sustainable Competitive Advantages in Brazilian and U.S. Processed Citrus Supply Chains: An Application of Porter’s Diamond Framework
Creators: name: Sterns, James A.
name: Spreen, Thomas H.
name: Sterns, James A.
name: Spreen, Thomas H.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Research Methods/ Statistical Methods
subject: orange juice
subject: Porter’s diamond
subject: competitive advantage

description: The processed citrus industries of Sao Paulo, Brazil and Florida, United States collectively account for over 80 percent of world orange juice production. In recent years, both industries have been confronted with serious plant disease outbreaks. Porter’s Diamond framework is used to assess the strengths and weakness of the processed citrus industry in each country to confront the combined challenge of effectively combating these diseases while maintaining market competitiveness. Although Sao Paulo and Florida produce a similar product, the Porter’s Diamond framework reveals that there are significant differences in the organizational structure of the two industries. The article concludes with an analysis of how these differences will impact each industry’s ability to sustain its global leadership in the international processed citrus market.
Business Dynamics with Scenarios on Dutch Agriculture and its Institutional Arrangements
Creators: name: Poppe, Krijn J.
name: Poppe, Krijn J.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Research Methods/ Statistical Methods
subject: agri‐food innovation system
subject: business dynamics
subject: scenario analysis

description: This paper investigates the developments in the Dutch Agri‐Food innovation system. Main components of the system are agriculture and agribusiness, the promotion of interests in the lobby system and the knowledge system. Each has its own dynamics but they are until now tied together by institutional arrangements. Based on a historical description we formulate a simple business dynamics model. The robustness of the system is investigated by a scenario analysis. Results have been checked by interviews with experts.
Family implementation of a culturally appropriate positive behavior support plan : an experimental and descriptive analysis
Creators: name: Cheremshynski, Christy
Publisher: name: University of British Columbia
Year: 2009

description: Problem behaviors are a major source of stress for families of children with developmental disabilities. Such stressors may include physical exhaustion, social isolation, and marital distress (Singer & Irvin, 1991). Studies on the efficacy of family-centered positive behavior support plans have empirically demonstrated that this approach can minimize problem behavior and enhance family quality of life. To date, however, none of the studies emerging from the positive behavior support literature have investigated the affect of culture on the development and implementation of a positive behavior support plan. The purpose of this study was to use an adapted cultural assessment tool in the design and implementation of a positive behavior support plan with one child of a family of a diverse cultural background who also demonstrated problem behavior in a valued, home-based routine. The study employed a single-subject withdrawal design. Both quantitative and qualitative measures were used to collect data across five phases: baseline, intervention, withdrawal, return to intervention and follow-up. Quantitative results indicated the presence of a clear functional relationship between the implementation of a culturally enhanced positive behavior support plan and improvements in a child's participation in a dinner routine and substantial reductions in problem behavior. Qualitative results yielded three themes relevant to providing effective behavior intervention services for families of a diverse cultural background. The results are discussed with reference to previous research, contributions, implications, limitations, and future directions for research with culturally diverse families.
Resistencia a la compresión y resistividad eléctrica de hormigones elaborados con materiales cementicios suplementarios y agregados reciclados
Creators: name: Juela, Diego
name: Bermeo, Jessica
name: Alvarez, Daniela
Publisher: name: figshare
Year: 2020
Subjects: subject: 90503 Construction Materials
subject: FOS: Civil engineering
subject: 90502 Construction Engineering
subject: 90403 Chemical Engineering Design
subject: FOS: Chemical engineering

description: La utilización de residuos industriales dentro de la industria del concreto constituye una alternativa eficaz hacia el desarrollo sostenible. Este estudio tiene como objetivo analizar el efecto que produce la sustitución de cemento portland por ceniza de bagazo de caña (CBC), arcilla caolín (AC) y yeso dihidratado (YD), así como la sustitución de árido grueso y fino natural por residuos de hormigón reciclado (HR) y residuos de caucho pulverizado (RCP) respectivamente, en la resistencia a la compresión y resistividad eléctrica de una mezcla de concreto. Las mezclas de concreto se prepararon según el método ACI 211.1 con una relación de agua/materiales cementicios de 0.43. Por cada material se ensayaron tres porcentajes de reemplazo: CBC y AC al 5, 10 y 20%; YD al 5, 7.5 y 10%; HR al 10, 20 y 40%, y RCP al 3, 5 y 8%. A las muestras cilíndricas se probaron la resistencia a la compresión a los 3, 7 y 28 días, la resistividad eléctrica (RE) a los 28 días, y se compararon frente a un concreto convencional. Se observó que la adición de CBC al 10% incrementó la resistencia en 2.14%, mientras que cada 1% de reemplazo adicional de CBC aumenta RE en 0.45 unidades. AC y RCP disminuyen la resistencia en todos los reemplazos, pero mejoran la RE en 32.4% con 20% de AC, mientras que el 8% de RCP duplica la RE. Todos los reemplazos de YD reducen en gran medida la resistencia, pero ligeramente la RE, así un 10% de YD reduce 56.78% la resistencia, pero solo un 5% la RE. Por último, el porcentaje óptimo de HR se encontró en 20%, disminuyendo en apenas un 0.88% la resistencia y 10.9% de RE. Los hallazgos establecen que CBC, HR y RCP mejoran resistencia y resistividad eléctrica, por lo que serían adecuados para la aplicación en la industria de la construcción.