cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
USE PROSPECTS IN MICROELECTRONICS FOR POLYCRYSTALLINE SILICON FILM STRUCTURES WITH p–n JUNCTION
Creators: name: Aliev, Raimjon
name: Muhtarov, Erkin
name: Aliev, Raimjon
name: Muhtarov, Erkin
Publisher: name: Unknown
Year: 2009
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Polycrystalline silicon
subject: grain boundaries
subject: ion-implantation
subject: microelectronics
subject: negative differential resistance
subject: photodiode
subject: I-V characteristics

description: The paper discusses perspectives of elaborating microelectronic and optoelectronic devices on polycrystalline silicon films. The I-V features of structures with p-n-junction, formed by using methods of р-type conductivity layer grow, thermal diffusion and ion-implantation of boron atoms into n-type polycrystalline silicon layer are compared. The I-V feature with S-form curve of the investigated structures conditioned by changing of the conductivities of base and grain boundaries under thermal processing are revealed.
The Prospects and Challenges of Information Retrieval by University Students: A case study of Post Graduate Students of the University of Ghana, Legon
Creators: name: Fordjour, R.
name: Badu, E.E.
name: Adjei, E.
name: Fordjour, R.
name: Badu, E.E.
name: Adjei, E.
Publisher: name: Unknown
Year: 2010
Subjects: Teaching/Communication/Extension/Profession

description: The poor performance of students in the various universities has been attributed to the inability of students to effectively retrieve information for academic work. The purpose of the study was to investigate the prospects and challenges of information retrieval among university students. The survey research method was used to investigate the awareness and use of information retrieval systems, document retrieved and its relevance to student’s information need, challenges of information retrieval among students and future expectation of information retrieving skills by students. Three student faculties in the University of Ghana, Legon participated in the study. A questionnaire consisting of 29 items was used as an instrument for collecting data. The findings reveal that students from all the faculties considered are highly aware of the information retrieval systems. However, there was no relationship between awareness of information retrieval systems and faculties. The study also shows that the use of information retrieval tools to retrieve relevant information depends on the information needs of the student. The study recommends that information retrieval skills training programme should be embedded in the curriculum and undertaken at an appropriate time and supported by academic staff of the University. In addition, the University administrators should ensure students studying subjects without an emphasis upon technology receive sufficient information retrieval skills training so that they are not prejudiced against due to subject chosen. Also, ensure that information retrieval skills training are pitched at a level which is appropriate to the individual needs of the student.
A multiplicatively symmetrized version of the Chung-Diaconis-Graham random process
Creators: name: Hildebrand, Martin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60B15 (Primary) 60G50 (Secondary)

description: This paper considers random processes of the form $X_{n+1}=a_nX_n+b_n \pmod p$ where $p$ is odd, $X_0=0$, $(a_0,b_0), (a_1,b_1), (a_2,b_2),...$ are i.i.d., and $a_n$ and $b_n$ are independent with $P(a_n=2)=P(a_n=(p+1)/2)=1/2$ and $P(b_n=1)=P(b_n=0)=P(b_n=-1)=1/3$. This can be viewed as a multiplicatively symmetrized version of a random process of Chung, Diaconis, and Graham. This paper shows that order $(\log p)^2$ steps suffice for $X_n$ to be close to uniformly distributed on the integers mod $p$ for all odd $p$ while order $(\log p)^2$ steps are necessary for $X_n$ to be close to uniformly distributed on the integers mod $p$.
Thematic factsheet - Environmental enrichment for sheep
Creators: name: Brunet, Valentin
name: Veissier, Isabelle
name: Botreau, Raphaëlle
name: Ginane, Cécile
name: Rørvang, Maria Vilain
name: Boivin, Xavier
name: de Oliveira, Daiana
Publisher: name: Zenodo
Year: 2024
Subjects: Environment
Positive emotion
Animal welfare
Lamb
Ewe

description: This thematic factsheet summarises the actual knowledge on sheep needs, the present situation of farming systems in Europe and potential environmental enrichments (physical, occupational, sensory, feeding and relational) that can be implemented in farms to improve animal welfare.
Coupled QCD sum rules for positive and negative-parity nucleons
Creators: name: Kondo, Yoshihiko
name: Morimatsu, Osamu
name: Nishikawa, Tetsuo
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A new approach of the QCD sum rule is proposed in which positive and negative-parity baryons couple with each other. With positive and negative-parity states explicitly taken into account, sum rules are derived by means of the dispersion relation in energy. The method is applied to the nucleon channel and the parity splitting of the nucleon resonance states is studied. It is found that the obtained sum rules have a very good Borel stability. This suggests that the ansatz for the spectral function in the present sum rule approximates the physical spectrum better than the usual lowest pole plus continuum ansatz. The predicted masses of the positive and negative nucleons reproduce the experimental ones fairly well. Especially, the mass difference is extremely close to the experimental value.
description: 14pages, 2figures
Farm Animal Welfare, Consumer Willingness to Pay, and Trust: Results of a Cross-National Survey
Creators: name: Nocella, Giuseppe
name: Hubbard, Lionel J.
name: Scarpa, Riccardo
name: Nocella, Giuseppe
name: Hubbard, Lionel J.
name: Scarpa, Riccardo
Publisher: name: Unknown
Year: 2010
Subjects: subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Farm Management
subject: Livestock Production/Industries
subject: Animal welfare
subject: certification
subject: consumer trust
subject: WTP
subject: budget approach

description: Higher animal welfare standards increase costs along the supply chain of certified animal-friendly products (AFP). Since the market outcome of certified AFP depends on consumer confidence toward supply chain operators complying with these standards, the role of trust in consumer willingness-to-pay (WTP) for AFP is paramount. Results from a contingent valuation survey administered in five European Union countries show that WTP estimates were sensitive to robust measures of consumer trust for certified AFP. Deriving the WTP effect of a single food category on total food expenditure is difficult for survey respondents; hence, a budget approach was employed to facilitate this process.
Emerging cost-time Pareto front for diffusion with stochastic return
Creators: name: Singh, Prashant
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Resetting, in which a system is regularly returned to a given state after a fixed or random duration, has become a useful strategy to optimize the search performance of a system. While earlier theoretical frameworks focused on instantaneous resetting, wherein the system is directly teleported to a given state, there is a growing interest in physical resetting mechanisms that involve a finite return time. However employing such a mechanism involves cost and the effect of this cost on the search time remains largely unexplored. Yet answering this is important in order to design cost-efficient resetting strategies. Motivated from this, we present a thermodynamic analysis of a diffusing particle whose position is intermittently reset to a specific site by employing a stochastic return protocol with external confining trap. We show for a family of potentials $U_R(x) \sim |x|^{m}$ with $m>0$, it is possible to find optimal potential shape that minimises the expected first-passage time for a given value of the thermodynamic cost, i.e. mean work. By varying this value, we then obtain the Pareto optimal front, and demonstrate a trade-off relation between the first-passage time and the work done.
description: 16+9 pages, 3 Figures
Small forests, big ambitions and a hard reality - Community Forestry in Nepal
Creators: name: Rai, Chandra
name: Bigsby, Hugh R.
name: MacDonald, Ian
name: Rai, Chandra
name: Bigsby, Hugh R.
name: MacDonald, Ian
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Farm Management
subject: Land Economics/Use
subject: Community forest user group
subject: institutional economics
subject: transaction cost economics
subject: cooperatives
subject: contractual arrangement
subject: Nepal

description: Community forestry in Nepal is intended to reduce poverty by sustainable management of forests. Timber is one of the most high-value forest products, especially in the case of Sal (Shorea robusta) forests in the Terai region of Nepal. Despite having several advantages, including high value forests on fertile land, connection with transportation networks, and being close to regional markets, community forests in the Terai region produce little or no timber from their Sal forests. This research looks at what is affecting the production of Sal timber from community forests. Three aspects of community forest user groups (CFUG) are examined using institutional economics, transaction cost economics and micro-economics. First, the scale of CFUG operations is examined in terms of their ability to profitably carry out logging and organise market sales. Second, the capacity of CFUGs to carry out logging in terms of internal physical and human resources, and property rights is examined. Finally, barriers to vertical integration with the market in terms of contracting and cooperation with other CFUGs are investigated. To answer these questions, data was collected from 85 CFUGs and interviews were carried out with 39 key respondents from CFUGs, government agencies, and private firms. The results show that the size of the forest was not an issue for harvesting and marketing logs. However, the organisational capacity of CFUGs was found to be weak because of a lack of financial resources, limited property rights over timber, control over decisions by the District Forest Office, policy constraints, and corruption. In terms of vertical integration, a lack of legal rights to enter into contracts, a high degree of uncertainty about policy and property rights, small and irregular amounts timber harvest, and the interpretation of CFUG rules by the District Forest Office were found to be barriers for the formation of long-term contracts between CFUGs and private firms, and of cooperative developments between CFUGs.
La condición tecno-ecológica. Heidegger ante los nuevos post-humanismos
Creators: name: Sandoval, Rodrigo Y.
Publisher: name: figshare
Year: 2020
Subjects: subject: Philosophy
subject: FOS: Philosophy, ethics and religion

description: Much of the contemporary thought about ecology begins with the questioning of the human exceptionality. By means of this, anthropocentrism is rejected and replaced by a post-humanist framework. In this context, Martin Heidegger‘s oeuvre is credited for its search of alternatives to humanism, particularly because of its rejection of Sartre‘s anthropocentrism. However, while post-humanisms tend to behold the role of technology positively, Heidegger‘s critiques to the technique as a consequence of the same metaphysical and anthropocentric movement are widely known. Instead of considering the common Heideggerian texts about technique, in this paper I explore the relationship between Heidegger and contemporary post-humanisms from the perspective of his existential analytic. In the first place, I will briefly describe the contemporary techno-scientific context, following the insights of Wiener, Haraway and Latour. In the second place, I will consider the relationship between Dasein, cyborgs and animals, discussing the Heideggerian interpretations of Hubert Dreyfus (What Computers Can’t Do) and Steven Crowell (We Have Never Been Animals).
Tunable electronic structure and stoichiometry dependent disorder in Nanostructured VO$_x$ films
Creators: name: Delia, A.
name: Rezvani, S. J.
name: Zema, N.
name: Zuccaro, F.
name: Fanetti, M.
name: Belec, Blaz
name: Li, B. W.
name: Zou, C. W.
name: Spezzani, C.
name: Sacchi, M.
name: Marcelli, A.
name: Coreno, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present and discuss an original method to synthesize disordered Nanostructured (NS) VO$_x$ films with controlled stoichiometry and tunable electronic structures. In these NS films, the original lattice symmetry of the bulk vanadium oxides is broken and atoms are arranged in a highly disordered structure . The stoichiometry-dependent disorder as a function of the oxygen concentration has been characterized by in-situ X-ray Absorption Near-Edge Structure (XANES) spectroscopy identifying the spectroscopic fingerprints. Results show structural rearrangements that deviate from the octahedral symmetry with different coexisting disordered phases. The modulation of the electronic structure of the NS films based on the resulted stoichiometry and the quantum confinement in the NS particles are also discussed. We demonstrate the possibility to modulate the electronic structure of VO$_x$ NS films accessing new disordered atomic configurations with a controlled stoichiometry that provides an extraordinary opportunity to match a wide number of technological applications.
INTEGRAL three years later
Creators: name: Foschini, L.
name: Di Cocco, G.
name: Malaguti, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The ESA INTErnational Gamma-Ray Astrophyisics Laboratory (INTEGRAL) is composed of two main instruments (IBIS and SPI) for the gamma-ray astrophysics (20 keV - 10 MeV), plus two monitors (JEM-X and OMC) for X-ray and optical counterparts. It was launched on October 17th, 2002, from the Baikonur cosmodrome (Kazakhstan) and it will be active at least up to 2008. A selection of its main scientific contributions obtained to date are presented.
description: 8 pages, no figures. Proceedings of the workshop "Science with the New Generation of High-Energy Gamma-Ray Experiments", Cividale del Friuli (Italy), 30 May - 1 June 2005. Invited talk. Some typos corrected
A Binomial Tree Approach to Valuing Fixed Rotation Forests and Flexible Rotation Forests Under a Mean Reverting Timber Price Process
Creators: name: Tee, James
name: Scarpa, Riccardo
name: Marsh, Dan
name: Guthrie, Graeme
name: Tee, James
name: Scarpa, Riccardo
name: Marsh, Dan
name: Guthrie, Graeme
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: NPV
subject: LEV
subject: Real Options
subject: Optimal Harvest Decision

description: NPV and LEV are established and common approaches to valuing single rotation and infinite rotation forests respectively, when the rotation age is fixed in advanced. More recently, Real Options approaches have been employed to value single and infinite rotation forests with a flexible harvest age. Under a stochastic timber price process, it has been shown that the valuation of a flexible rotation forest is equal or higher than that of a fixed rotation forest, because a flexible harvest regime delays the harvest if the timber price is not favourable, whereas a fixed harvest regime would proceed to harvest regardless of the price. Often, valuation of fixed and flexible rotation ages are compared using 2 different methods – NPV (or LEV) and Real Options. The latter tends to have higher data requirements, employ different assumptions and is much more complex to estimate. Because of these differences, it may be difficult to isolate the cause of the increased valuation. In this work, we apply a relatively simple Binomial Tree method from Guthrie (2009) to value both fixed rotation and flexible rotation forests. This method uses the same data, with the same assumptions for both valuations. By holding everything equal, the difference in valuation is solely attributable to the fixed versus flexible harvesting decisions. Original results for both single and infinite rotations are presented using New Zealand Radiata Pine data. Under a mean reverting timber price process, the Binomial Tree approach offers useful insights on the increased valuation due to flexible harvest decisions.
title: Flexible Electrolysers as a Tool for Renewable Energy Integration and Congestion Management: Comparison of Different Allocation Methods in a Transmission System Case Study for Germany 2030
Creators: name: Kisse, Jolando Marius
name: Hahn, Philipp
name: Harms, Yannic
name: Braun, Martin
Publisher: name: KOBRA Universität Kassel
Year: 2025
Subjects: subject: Congestion Management
subject: Electrolyser Allocation
subject: Hydrogen
subject: Mathematical Optimization
subject: Redispatch
classificationCode: 600
subject: 600
classificationCode: Wasserstoff
subject: Wasserstoff
classificationCode: Elektrolyse
subject: Elektrolyse
classificationCode: Mathematik
subject: Mathematik
classificationCode: Optimierung
subject: Optimierung

description: 23rd Wind & Solar Integration Workshop, Helsinki, 8 – 11 October 2024
Erscheint als Artikel bei IET Conference Proceedings: https://windintegrationworkshop.org/proceedings/
description:
The integration of renewable energy sources (RES) into future power systems necessitates increased flexibility. At the same time, the hydrogen (H₂) market in Germany and Europe is expected to rapidly expand, including a substantial increase in domestic H₂ production via electrolysis. Flexible electrolysers and hydrogen power plants can support RES integration and play a pivotal role in grid congestion management (redispatch), which is highly sensitive to the units’ locations. In this study, we compare three electrolyser allocation methods - driven by hydrogen demand, nodal renewable energy surplus, or an optimization that minimizes line overloading - across the German transmission system for the year 2030. Using detailed models of the power system and the planned H₂ core network in Germany, and hourly time-series data from an energy system optimization, we analyse redispatch volumes and costs associated with each allocation method. The findings of our case study reveal that a gridcongestion-minimizing approach lowers redispatch volumes by around 36% and redispatch costs by around 34% compared to a hydrogen demand-oriented allocation. Additionally, allowing electrolysers to participate in redispatch further decreases redispatch costs by 4-10%. While this causes an increase of the electrolysers’ electricity consumption and H₂ production by 13-14%, the RES curtailment is reduced by 7-29%. These results underscore the strategic value of electrolyser placement and flexibility in congestion management for efficient power system design and operation in a renewable-dominated energy landscape.
Harmful Signaling in Matching Markets
Creators: name: Kushnir, Alexey
name: Kushnir, Alexey
Publisher: name: Unknown
Year: 2010
Subjects: subject: Environmental Economics and Policy
subject: Signaling
subject: Cheaptalk
subject: Matching

description: Some labor markets have recently developed formal signalling mechanisms, e.g. the signalling for interviews in the job market for new Ph.D. economists. We evaluate the effect of such mechanisms on two-sided matching markets by considering a game of incomplete information between firms and workers. Workers have almost aligned preferences over firms: each worker has “typical” commonly known preferences with probability close to one and “atypical” idiosyncratic preferences with the complementary probability close to zero. Firms have some commonly known preferences over workers. We show that the introduction of a signalling mechanism is harmful for this environment. Though signals transmit previously unavailable information, they also facilitate information asymmetry that leads to coordination failures. As a result, the introduction of a signalling mechanism lessens the expected number of matches when signals are informative.
Visible $\mathcal C^2$-smooth domains are pseudoconvex
Creators: name: Nikolov, Nikolai
name: Ökten, Ahmed Yekta
name: Thomas, Pascal J.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32F45

description: We show that a domain that satisfies the visibility property with $\mathcal C^2$-smooth boundary is pseudoconvex.
description: 6 pages; some typos and inaccuracies have been fixed. To appear in Bull. Sci. Math
The development of an Integrated Social Home Care Model – A Business Model Canvas approach
Creators: name: Ali, Muhammad Najib
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology

description: This paper will examined the integration of social inclusion into business model in BMC and or SBMC contribute to three (3) dimensional classifications which is financial support capacity, management styles and sustainability operation. A cross-sectional study was performed at duo (2) groups of SBMC and BMC conducted among officer or operator of PAWE from Jabatan Kebajikan Masyarakat and Pejabat Kebajikan Masyarakat in Klang Valley. A total of 150 officers or operator of PAWE were obtaining using UNTC-Policy Making Assessment Questionnaire and analysed using SPSS ver 21. The result demonstrates the direct relationship between BMC and SBMC towards financial support capacity, management styles or sustainability operation dimensional classification
Echo360-Zoom Automatically Imported Video files – UNSW Guide
Creators: name: Clout, Victoria
Publisher: name: figshare
Year: 2020
Subjects: subject: 130103 Higher Education
subject: FOS: Educational sciences

description: A guide for linking automatically Imported Zoom Video files for a course into Echo360. Now that UNSW has turned on the Echo360 option Zoom video recordings are automatically linked to your Echo360 account and a video can then be linked from the Echo360 "Library" into the "Class" line and made available students.
Status-Seeking in Hedonic Games with Heterogeneous Players
Creators: name: Lazarova, Emiliya A.
name: Dimitrov, Dinko
name: Lazarova, Emiliya A.
name: Dimitrov, Dinko
Publisher: name: Unknown
Year: 2010
Subjects: subject: Environmental Economics and Policy
subject: Coalitions
subject: Core
subject: Stability
subject: Status-seeking

description: We study hedonic games with heterogeneous player types that reflect her nationality, ethnic background, or skill type. Agents' preferences are dictated by status-seeking where status can be either local or global. The two dimensions of status define the two components of a generalized constant elasticity of substitution utility function. In this setting, we characterize the core as a function of the utility's parameter values and show that in all cases the corresponding cores are non-empty. We further discuss the core stable outcomes in terms of their segregating versus integrating properties.
The Paradox of New Members in the EU Council of Ministers: A Non-cooperative Bargaining Analysis
Creators: name: Montero, Maria
name: Montero, Maria
Publisher: name: Unknown
Year: 2010
Subjects: subject: Environmental Economics and Policy
subject: Majoritarian Bargaining
subject: Weighted Voting
subject: Power Measures
subject: EU Enlargement
subject: Paradox of New Members

description: Power indices suggest that adding new members to a voting body may increase the power of an existing member, even if the number of votes of all existing members and the decision rule remain constant. This phenomenon is known as the paradox of new members. This paper uses the leading model of majoritarian bargaining and shows that the paradox is predicted in equilibrium for past EU enlargements. Furthermore, a majority of members would have been in favor of the 1981 enlargement even if members were bargaining over a fixed budget.
For a semiotic AI: Bridging computer vision and visual semiotics for computational observation of large scale facial image archives
Creators: name: Morra, Lia
name: Santangelo, Antonio
name: Basci, Pietro
name: Piano, Luca
name: Garcea, Fabio
name: Lamberti, Fabrizio
name: Leone, Massimo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Social networks are creating a digital world in which the cognitive, emotional, and pragmatic value of the imagery of human faces and bodies is arguably changing. However, researchers in the digital humanities are often ill-equipped to study these phenomena at scale. This work presents FRESCO (Face Representation in E-Societies through Computational Observation), a framework designed to explore the socio-cultural implications of images on social media platforms at scale. FRESCO deconstructs images into numerical and categorical variables using state-of-the-art computer vision techniques, aligning with the principles of visual semiotics. The framework analyzes images across three levels: the plastic level, encompassing fundamental visual features like lines and colors; the figurative level, representing specific entities or concepts; and the enunciation level, which focuses particularly on constructing the point of view of the spectator and observer. These levels are analyzed to discern deeper narrative layers within the imagery. Experimental validation confirms the reliability and utility of FRESCO, and we assess its consistency and precision across two public datasets. Subsequently, we introduce the FRESCO score, a metric derived from the framework's output that serves as a reliable measure of similarity in image content.
description: Accepted at CVIU journal 2024
Stochastic Stability in the Best Shot Game
Creators: name: Boncinelli, Leonardo
name: Pin, Paolo
name: Boncinelli, Leonardo
name: Pin, Paolo
Publisher: name: Unknown
Year: 2010
Subjects: subject: Environmental Economics and Policy
subject: Networks
subject: Best Shot Game
subject: Stochastic Stability

description: The best shot game applied to networks is a discrete model of many processes of contribution to local public goods. It has generally a wide multiplicity of equilibria that we refine through stochastic stability. In this paper we show that, depending on how we define perturbations, i.e. the possible mistakes that agents can make, we can obtain very different sets of stochastically stable equilibria. In particular and non-trivially, if we assume that the only possible source of error is that of an agent contributing that stops doing so, then the only stochastically stable equilibria are those in which the maximal number of players contributes.
Radiation spectra of laser-driven quantum relativistic electrons
Creators: name: Mocken, Guido R.
name: Keitel, Christoph H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A procedure to calculate the radiation spectrum emitted by an arbitrarily prepared Dirac wave packet is developed. It is based on the Dirac charge current and classical electrodynamic theory. Apart from giving absolute intensity values, it is exact in terms of relativistic retardation effects and angular dependence. We employ a laser driven free electron to demonstrate the advantages of our method as compared to traditional ones that merely rely on the Fourier transform of the dipole operator's expectation value. Classical reference calculations confirm the results obtained for the low-frequency part of the spectrum, especially in terms of the observed red-shifts, which clearly deviate from non-relativistic calculations. In the high-frequency part of the spectrum, we note appreciable deviations to the purely classical calculations which may be linked to quantum averaging effects.
description: 30 pages, 7 figures
Distributions of the Hardness Ratio of short and Long Gamma-Ray Bursts in Different Time Intervals within the First 2 Seconds
Creators: name: Dong, Yun-Ming
name: Qin, Yi-Ping
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the present paper, we investigated the distribution of hardness ratio (HR) for short and long gamma-ray bursts (GRBs) in different time scales for the first two seconds. After including and subtracting the background count, we performed a Kolmogorov--Smirnov (K-S) test to the HR distributions of the two classes of GRBs in each time interval. Our analysis shows that the probabilities of the KS test to the distributions are very small, suggesting that the two classes of bursts are unlikely to arise from the same HR distributions, and indicating that they probably originate from the different physical processes and central engine. In addition, we found that the hardness ratio of short bursts within the time interval of 0$-$0.96 seconds changes hard-to-soft, on the other hand long bursts do not. The two kinds of bursts have different characteristics in the first 2 seconds which might be associated with different physical mechanisms.
description: Accepted for publication in MNRAS, 11 pages, 5 figures
Restoration of superconductivity in high magnetic fields in UTe$_2$
Creators: name: Lebed, Andrei G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: It was theoretically predicted more than 20 years ago [A.G. Lebed and K. Yamaji, {\it Phys. Rev. Lett.} {\bf80}, 2697 (1998)] that a triplet quasi-two-dimensional (Q2D) superconductor could restore its superconducting state in parallel magnetic fields, which are higher than its upper critical magnetic field, $H > H_{c2}(0)$. It is very likely that recently such phenomenon has been experimentally discovered in the Q2D superconductor UTe$_2$ by Nicholas Butch, Sheng Ran and their colleagues and has been confirmed by Japanese-French team. We review our previous theoretical results, using such a general method that it describes the reentrant superconductivity in the above mentioned compound as well as will hopefully describe the similar phenomena, which can be discovered in other Q2D superconductors.
description: Invited Brief Review for journal Modern Physics Letters B, accepted (2020)
title: Decoding the genetic and chemical basis of sexual attractiveness in parasitic wasps
Creators: name: Sun, Weizhao
name: Lange, Michelle Ina
name: Gadau, Jürgen
name: Büllesbach, Jan
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2024
Subjects: subject: 570 Biology

description: Attracting and securing potential mating partners is of fundamental importance for reproduction. Therefore, signaling sexual attractiveness is expected to be tightly coordinated in communication systems synchronizing senders and receivers. Chemical signaling has permeated through all taxa of life as the earliest and most widespread form of communication and is particularly prevalent in insects. However, it has been notoriously difficult to decipher how exactly information related to sexual signaling is encoded in complex chemical profiles. Similarly, our knowledge of the genetic basis of sexual signaling is very limited and usually restricted to a few case studies with comparably simple pheromonal communication mechanisms. The present study jointly addresses these two knowledge gaps by characterizing two fatty acid synthase genes that most likely evolved by tandem gene duplication and that simultaneously impact sexual attractiveness and complex chemical surface profiles in parasitic wasps. Gene knockdown in female wasps dramatically reduces their sexual attractiveness coinciding with a drastic decrease in male courtship and copulation behavior. Concordantly, we found a striking shift of methyl-branching patterns in the female surface pheromonal compounds, which we subsequently demonstrate to be the main cause for the greatly reduced male mating response. Intriguingly, this suggests a potential coding mechanism for sexual attractiveness mediated by specific methyl-branching patterns in complex cuticular hydrocarbon (CHC) profiles. So far, the genetic underpinnings of methyl-branched CHCs are not well understood despite their high potential for encoding information. Our study sheds light on how biologically relevant information can be encoded in complex chemical profiles and on the genetic basis of sexual attractiveness.
description: Finanziert durch den Open-Access-Publikationsfonds der Universität Münster.
Markets Need Predictable Government Actions to Function Effectively: The Case of Importing Maize in Times of Deficit
Creators: name: Nijhoff, Jan J.
name: Jayne, Thomas S.
name: Mwiinga, Billy
name: Shaffer, James D.
name: Nijhoff, Jan J.
name: Jayne, Thomas S.
name: Mwiinga, Billy
name: Shaffer, James D.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Agricultural and Food Policy
subject: Marketing
subject: FOS: Economics and business
subject: food security
subject: food policy
subject: Zambia
subject: maize

description: Food relief for vulnerable groups is important in times of deficit. For the remainder of the population, well functioning grain markets can save lives during times of food shortfalls. This note illustrates how predictable Government behavior in the market can improve markets’ ability to meet the needs of consumers.
WCDMA capacity analysis for mixed data services using MRC and IRC smart antennas
Creators: name: Wu, Patrick Shang-Neng
Publisher: name: University of British Columbia
Year: 2009

description: In this thesis, the effects of the Maximum Ratio Combining (MRC) and Interference Rejection Combining (IRC) smart antennas on the capacity of the 3rd Generation (3G) Wideband Code Division Multiple Access (WCDMA) cellular systems are investigated. By exploiting the signal characteristics in the spatial dimension, the MRC and IRC antennas are designed to receive signals in selective directions and reduce interferences in certain areas respectively. When these smart antennas are used along with the Rake receiver that extracts the useful information of signals in the temporal domain and the WCDMA technology, the system capacity can be increased significantly. In order to estimate and compare the system capacity improvements these techniques offer, a software platform was designed to simulate the interference limited uplink direction of a WCDMA system at the chip level. In this simulation platform, the logical channel structure of the WCDMA air interface and a flexible antenna model that can be easily configured were implemented in detail to accurately obtain capacity results. In addition, realistic system conditions were emulated by considering practical channel models, a multiple-cell configuration, the user voice activity factor and tight power control. Based on the simulated results, the advantages of using the IRC antennas, as compared to the MRC antennas, are presented in terms of improvements in system capacities. It is shown that the MRC and IRC smart antennas have their own advantages under different multipath channel environments. Furthermore, the performance evaluation results have indicated that turbo codes provide the most significant improvement over the convolutional codes when used for the high rate multimedia users. The relationship between the numbers of low rate and high rate users a system can accommodate concurrently is also established from the results.
Illusiveness of the problem of time
Creators: name: Cherkas, Sergey L.
name: Kalashnikov, Vladimir L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences
subject: F.2.1
subject: 70H45, 83F05

description: The essay is devoted to the problem of time in the context of quantum cosmology, which acquires a philosophical level to date. At an example of the minisuperspace model, we show that this problem is illusive in the sense that it does not prevent to calculate mean values of the operators over the quantum state of the universe. Contrariwise, the different approaches to the description of these time-dependent mean values give similar results.
description: Essay written for the Gravity Research Foundation 2020. It is based on arXiv:2003.11284
Zambian Cotton in a Regional Context: Performance under Liberalization and Future Challenges
Creators: name: Tschirley, David L.
name: Zulu, Ballard
name: Tschirley, David L.
name: Zulu, Ballard
Publisher: name: Unknown
Year: 2003
Subjects: subject: Crop Production/Industries
subject: food security
subject: food policy
subject: Zambia
subject: cotton

description: This paper is directed toward policy makers and private stakeholders in Zambia’s cotton sector. Its purpose is: 1) to assess key elements of the performance of Zambia’s cotton sector relative to other selected African countries; 2) to develop preliminary insights into the driving forces behind Zambia’s performance and also the threats to improved future performance; and 3) to identify key issues within the sector that merit continued applied research and dialogue with stakeholders.
La condición tecno-ecológica
Creators: name: Sandoval, Rodrigo Y.
Publisher: name: figshare
Year: 2020
Subjects: subject: Philosophy
subject: FOS: Philosophy, ethics and religion

description: Much of the contemporary thought about ecology begins with the questioning of the human exceptionality. By means of this, anthropocentrism is rejected and replaced by a post-humanist framework. In this context, Martin Heidegger‘s oeuvre is credited for its search of alternatives to humanism, particularly because of its rejection of Sartre‘s anthropocentrism. However, while post-humanisms tend to behold the role of technology positively, Heidegger‘s critiques to the technique as a consequence of the same metaphysical and anthropocentric movement are widely known. Instead of considering the common Heideggerian texts about technique, in this paper I explore the relationship between Heidegger and contemporary post-humanisms from the perspective of his existential analytic. In the first place, I will briefly describe the contemporary techno-scientific context, following the insights of Wiener, Haraway and Latour. In the second place, I will consider the relationship between Dasein, cyborgs and animals, discussing the Heideggerian interpretations of Hubert Dreyfus (What Computers Can’t Do) and Steven Crowell (We Have Never Been Animals).
How Will the Proposed Crop Marketing Authority Affect Food Market Performance in Zambia? An ex Ante Assessment to Inform Government Deliberation
Creators: name: Nijhoff, Jan J.
name: Tembo, Gelson
name: Shaffer, James D.
name: Jayne, Thomas S.
name: Shawa, Julius J.
name: Nijhoff, Jan J.
name: Tembo, Gelson
name: Shaffer, James D.
name: Jayne, Thomas S.
name: Shawa, Julius J.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: food security
subject: food policy
subject: Zambia
subject: crop marketing

description: Abstract: This policy synthesis highlights some of the key messages contained in the full report with the same title. It aims to summarize the rationale and objectives of the CMA and the possible consequences of adopting the proposed legislation. We also identify alternative or additional measures that the government could take to overcome constraints in crop marketing.
Investigating usability of mobile health applications in Bangladesh
Creators: name: Islam, Muhammad Nazrul
name: Karim, Md. Mahboob
name: Inan, Toki Tahmid
name: Islam, A. K. M. Najmul
Publisher: name: arXiv
Year: 2020
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Background: Lack of usability can be a major barrier for the rapid adoption of mobile services. Therefore, the purpose of this paper is to investigate the usability of Mobile Health applications in Bangladesh. Method: We followed a 3-stage approach in our research. First, we conducted a keyword-based application search in the popular app stores. We followed the affinity diagram approach and clustered the found applications into nine groups. Second, we randomly selected four apps from each group (36 apps in total) and conducted a heuristic evaluation. Finally, we selected the highest downloaded app from each group and conducted user studies with 30 participants. Results: We found 61% usability problems are catastrophe or major in nature from heuristic inspection. The most (21%) violated heuristic is aesthetic and minimalist design. The user studies revealed low System Usability Scale (SUS) scores for those apps that had a high number of usability problems based on the heuristic evaluation. Thus, the results of heuristic evaluation and user studies complement each other. Conclusion: Overall, the findings suggest that the usability of the mobile health apps in Bangladesh is not satisfactory in general and could be a potential barrier for wider adoption of mobile health services.
description: 13 pages, 4 figures
The nature and significance of rift-related, near-surface fissure fill networks in fractured carbonates below regional unconformities
Creators: name: Hardman, Kit
name: Holdsworth, Robert E
name: Dempsey, Edward
name: McCaffrey, Ken
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Appendix A.
Business Model Canvas Template for a Retirement Home: A Review from different concept in Malaysia
Creators: name: Ali, Muhammad Najib
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology

description: This article develops business model canvas templates for basic types of retirement home in Malaysia. From nine (9) basic building blocks of scare resources of physical, financial, social and technological resources, this article emphasizing the business model canvas and social business model canvas into three (3) main building blocks of The Financial issue, The Marketing Issues and the Value Proposition end up with the differences in fund and value proposition in SBMC and BMC in Malaysia
Chandra Localizations of LMXBs: IR Counterparts and their Properties
Creators: name: Wachter, S.
name: Wellhouse, J. W.
name: Bandyopadhyay, R. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new Chandra observations of the low mass X-ray binaries (LMXBs) X1624-490, X1702-429, and X1715-321 and the search for their Infrared (IR) counterparts. We also report on early results from our dedicated IR survey of LMXBs. The goal of this program is to investigate whether IR counterparts can be identified through unique IR colors and to trace the origin of the IR emission in these systems.
description: 4 pages, 2 figures; to appear in the Proceedings of the Conference "Interacting Binaries: Accretion, Evolution and Outcomes" in Cefalu 2004
An Assessment of Current Policy Initiatives in Zambia's Cotton Sector
Creators: name: Zulu, Ballard
name: Tschirley, David L.
name: Zulu, Ballard
name: Tschirley, David L.
Publisher: name: Unknown
Year: 2004
Subjects: subject: Crop Production/Industries
subject: food security
subject: food policy
subject: Zambia
subject: cotton

description: This paper assesses three of these policy initiatives: input credit provision for smallholder producers of selected cash crops including cotton, the proposed creation of a Cotton Board, and the emergence in 2003 of District Council levies as a point of conflict between local governments and cotton companies. The purpose of the paper is to provide guidance to public and private decision makers regarding key modifications which may need to be made to these policies to ensure continued healthy development of the sector.
THE DEVELOPMENT OF AN INTEGRATED SOCIAL HOME CARE MODEL – A BUSINESS MODEL CANVAS APPROACH
Creators: name: Ali, Muhammad Najib
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology

description: This paper will examined the integration of social inclusion into business model in BMC and or SBMC contribute to three (3) dimensional classifications which is financial support capacity, management styles and sustainability operation. A cross-sectional study was performed at duo (2) groups of SBMC and BMC conducted among officer or operator of PAWE from Jabatan Kebajikan Masyarakat and Pejabat Kebajikan Masyarakat in Klang Valley. A total of 150 officers or operator of PAWE were obtaining using UNTC-Policy Making Assessment Questionnaire and analysed using SPSS ver 21. The result demonstrates the direct relationship between BMC and SBMC towards financial support capacity, management styles or sustainability operation dimensional classification
General relativistic simulations of the quasi-circular inspiral and merger of charged black holes: GW150914 and fundamental physics implications
Creators: name: Bozzola, Gabriele
name: Paschalidis, Vasileios
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We perform general-relativistic simulations of charged black holes targeting GW150914. We show that the inspiral is most efficient for detecting black hole charge through gravitational waves and that GW150914 is compatible with having charge-to-mass ratio as high as 0.3. Our work applies to electric and magnetic charge, and to theories with black holes endowed with U(1) (hidden or dark) charges. Using our results we place an upper bound on the deviation from general relativity in the dynamical, strong-field regime of the so-called theory of MOdified Gravity (MOG).
description: 10 pages (including Supplemental Material), 3 figures. Matches published version
Socio-economic Characteristics of Individuals Affected by AIDS-related Prime-age Mortality in Zambia
Creators: name: Chapoto, Antony
name: Jayne, Thomas S.
name: Chapoto, Antony
name: Jayne, Thomas S.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Health Economics and Policy
subject: food security
subject: food policy
subject: Zambia
subject: prime-age mortality
subject: HIV/AIDS

description: This study is designed to help policy-makers and development agencies in the formulation of AIDS prevention and mitigation strategies. The study determines the ex ante socioeconomic characteristics of individuals who die between the ages of 15 to 59 years of age (hereafter called “prime age” mortality), using nationally representative panel data of individuals surveyed in rural Zambia between 2001 and 2004.