cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Verifying Response Times in Networked Automation Systems Using Jitter Bounds
Creators: name: Srinivasan, Seshadhri
name: Buonopane, Furio
name: Ramaswamy, Srini
name: Vain, Juri
Publisher: name: arXiv
Year: 2015
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Networked Automation Systems (NAS) have to meet stringent response time during operation. Verifying response time of automation is an important step during design phase before deployment. Timing discrepancies due to hardware, software and communication components of NAS affect the response time. This investigation uses model templates for verifying the response time in NAS. First, jitter bounds model the timing fluctuations of NAS components. These jitter bounds are the inputs to model templates that are formal models of timing fluctuations. The model templates are atomic action patterns composed of three composition operators- sequential, alternative, and parallel and embedded in time wrapper that specifies clock driven activation conditions. Model templates in conjunction with formal model of technical process offer an easier way to verify the response time. The investigation demonstrates the proposed verification method using an industrial steam boiler with typical NAS components in plant floor.
description: 5 Pages; 7 Figures in The 25th IEEE International Symposium on Software Reliability Engineering (ISSRE), 2014
Training and Practice of Readers' Advisory by Public Library Staff in North Carolina
Creators: name: Gramley, Amanda
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014
Subjects: Employees--Training of
Public libraries--North Carolina
Readers' advisory services

description: Research was conducted examining a link between education and training on readers' advisory and confidence levels when conducting the service. A survey was sent to all public libraries in North Carolina. The respondents were asked about their education, training received on the job and their level of confidence when conducting readers' advisory. The results from the survey showed that most library staff did not receive initial or ongoing training. Despite the lack of training, the respondents reported high levels of confidence, comfort and success when performing readers' advisory.
Lycianthes multiflora Bitter
Creators: name: MONRO, A. K.
name: SANTAMARÍA-AGUILAR, D.
name: GONZÁLEZ, F.
name: CHACÓN, O.
name: SOLANO, D.
name: RODRÍGUEZ, A.
name: ZAMORA, N.
name: FEDELE, E.
name: CORREA, M.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Solanales
Solanaceae
Lycianthes
Lycianthes multiflora

description: Lycianthes multiflora Bitter
Tomatillo (CR).
 Terrestrial lianas. Distribution in PILA 0–2300 m, low elevation mixed forest, mixed forest in transition to low elevation forest, mixed forest in transition to cloud forest, cloud forest, low elevation oak forest. Global distribution: Nicaragua to Costa Rica. Records: G. Gallardo 42 (CR, INB, MO).
description: Published as part of MONRO, A. K., SANTAMARÍA-AGUILAR, D., GONZÁLEZ, F., CHACÓN, O., SOLANO, D., RODRÍGUEZ, A., ZAMORA, N., FEDELE, E. & CORREA, M., 2017, A first checklist to the vascular plants of La Amistad International Park (PILA), Costa Rica-Panama, pp. 448-450 in Phytotaxa 322 (1) on pages 448-450, DOI: 10.11646/phytotaxa.322.1.1, http://zenodo.org/record/13698397
Approximate performance analysis of generalized join the shortest queue routing
Creators: name: Selen, Jori
name: Adan, Ivo J. B. F.
name: Kapodistria, Stella
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper we propose a highly accurate approximate performance analysis of a heterogeneous server system with a processor sharing service discipline and a general job-size distribution under a generalized join the shortest queue (GJSQ) routing protocol. The GJSQ routing protocol is a natural extension of the well-known join the shortest queue routing policy that takes into account the non-identical service rates in addition to the number of jobs at each server. The performance metrics that are of interest here are the equilibrium distribution and the mean and standard deviation of the number of jobs at each server. We show that the latter metrics are near-insensitive to the job-size distribution using simulation experiments. By applying a single queue approximation we model each server as a single server queue with a state-dependent arrival process, independent of other servers in the system, and derive the distribution of the number of jobs at the server. These state-dependent arrival rates are intended to capture the inherent correlation between servers in the original system and behave in a rather atypical way.
description: 16 pages, 5 figures -- version 2 incorporates minor textual changes
Outreach in State Archives and Public Use of Government Records
Creators: name: Shaffer, Kristin J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009
Subjects: Archives and education--United States
Government archives--Aims and objectives
State archives--Outreach programs
Use studies--Government archives
Archives--Political aspects--United States
State archives--Evaluation

description: This research investigates whether investment in outreach activities and programs  of public education serves to promote use of public records at state archives. Data  from the Council of State Archivists' FY2004 Survey of State Archives and Records  Management Programs is analyzed. The study does not find a significant relationship  between overall breadth of outreach at state archives and public use of government  records. Though this analysis is only a preliminary investigation into the  relationship between the variables, the findings raise questions about the  effectiveness of outreach programs in state archives. Given the dearth of program  evaluation uncovered by review of the literature, this study highlights the need for  greater critical evaluation of the inputs and outcomes of archival outreach.
One-dimensional Coulomb multi-particle systems
Creators: name: Malyshev, V. A.
name: Zamyatin, A. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 78A30

description: We consider the system of particles with equal charges and nearest neighbour Coulomb interaction on the interval. We study local properties of this system, in particular the distribution of distances between neighbouring charges. For zero temperature case there is sufficiently complete picture and we give a short review. For Gibbs distribution the situation is more difficult and we present two related results.
description: arXiv admin note: text overlap with arXiv:1411.7652
METABASE: A distributed metadata databases with OSF/DCE UUIDs
Creators: name: Zhang, Yangkun
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1999
Subjects: Metadata replication
Metadata Relational database

description: Metabase is a model for a metadata database that is based on a relational instead of a flat model. At the core of the Metabase concept is that every document, idea, and concept represented in the metadata repository is represented by an Universally Unique ID (UUID) that is always identical and unique. Hence, every concept can be searched for and replicated across various machines without needing to worry about name collisions. The relational tables in Metabase also allows complex metadata which cannot easily fit into a conventional "flat" metadata scheme to be used.
Terahertz Spin-to-Charge Current Conversion in Stacks of Ferromagnets and the Transition-Metal Dichalcogenide NbSe2
Creators: name: Nádvorník, Lukáš
name: Gueckstock, Oliver
name: Braun, Lukas
name: Niu, Chengwang
name: Gräfe, Joachim
name: Richter, Gunther
name: Schütz, Gisela
name: Takagi, Hidenori
name: Seifert, Tom S.
name: Kampfrath, Tobias
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: spin Hall angles
subject: spin-to-charge-current conversion
subject: terahertz emission spectroscopy
subject: transition-metal dichalcogenides (TMDCs)
subject: ultrafast spin current injections
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Transition-metal dichalcogenides (TMDCs) are an aspiring class of materials with unique electronic and optical properties and potential applications in spin-based electronics. Here, terahertz emission spectroscopy is used to study spin-to-charge current conversion (S2C) in the TMDC NbSe2 in ultra-high-vacuum-grown F|NbSe2 thin-film stacks, where F is a layer of ferromagnetic Fe or Ni. Ultrafast laser excitation triggers an ultrafast spin current that is converted into an in-plane charge current and, thus, a measurable THz electromagnetic pulse. The THz signal amplitude as a function of the NbSe2 thickness shows that the measured signals are fully consistent with an ultrafast optically driven injection of an in-plane-polarized spin current into NbSe2. Modeling of the spin-current dynamics reveals that a sizable fraction of the total S2C originates from the bulk of NbSe2 with the opposite, negative sign of the spin Hall angle as compared to Pt. By a quantitative comparison of the emitted THz radiation from F|NbSe2 to F|Pt reference samples and the results of ab initio calculations, it is estimated that the spin Hall angle of NbSe2 for an in-plane polarized spin current lies between -0.2% and -1.1%, while the THz spin-current relaxation length is of the order of a few nanometers.
title: Optimising yield through novel canopy architecture in intensive cocoa-growing systems
Creators: name: Susanti, Rany Agustina
Publisher: name: University of Reading
Year: 2024

description: The increasing demand for cocoa and the challenges associated with boosting production have prompted the exploration of intensive production techniques. The potential of hedgerow systems to increase cocoa yield by maximizing canopy light interception was investigated in two factorial experiments: Biomass 1, with trellis or conventional tree architecture, 1-4 branches, and four densities (625 - 1111 trees.ha-1); and Biomass 2, with three densities (2000 - 5000 trees.ha-1), East-West or North-South orientation, and two clones (M01 and 45). Pruning treatments significantly increase the light-saturated photosynthetic rate by 15-54%. Middle-aged leaves exhibit the highest photosynthetic rate, indicating that frequent pruning can improve tree productivity (17-67% higher than younger leaves and 27-61% higher than older leaves). However, optimal pruning levels require further investigation. The study revealed that clone 45 grown at density of 2000 trees.ha-1 resulted in higher bean and pod harvest index values over three production years, due to reduced competition for resources compared to other densities. The yield efficiency of clones 45 and M01 varied between 0.02-0.05, with 38-46% pod biomass observed in this study. These findings suggest that planting density and genetic variation are essential factors to consider in cocoa cultivation and can contribute to improved productivity. Clone 45 trees aged 26 and 38 months had the highest yields at 4.46 and 4.6 tonnes.ha-1, but productivity declined in the third year due to limited assimilation conditions. Clones 45 and M01 were unsuitable for high-density planting on the trellis system due to excessive vegetative biomass. The results show that although clone 45 can improve cocoa yield in a trellis-based system at a moderate density, it was not the best option. Five crosses were identified with high yield efficiency, high yield, and low trunk growth increment. These findings highlight the potential of suitable clones to improve productivity in intensive cacao growing systems.
Characterization of the MASCOT landing area by Hayabusa2
Creators: name: Schröder, Stefan
name: Sakatani, Naoya
name: Honda, Rie
name: Tatsumi, Eri
name: Yokota, Yasuhiro
name: Domingue, Deborah
name: Cho, Yuichiro
name: Kameda, Shingo
name: Kitazato, Kohei
name: Jaumann, Ralf
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: minor planets
subject: asteroids: individual: Ryugu
subject: methods: data analysis
subject: 500 Naturwissenschaften und Mathematik::520 Astronomie::520 Astronomie und zugeordnete Wissenschaften

description: Context. After landing on C-type asteroid Ryugu, MASCOT imaged brightly colored, submillimeter-sized inclusions in a small rock. Hayabusa2 successfully returned a sample of small particles from the surface of Ryugu, but none of these appear to harbor such inclusions. The samples are considered representative of Ryugu. Aims. To understand the apparent discrepancy between MASCOT observations and Ryugu samples, we assess whether the MASCOT landing site, and the rock by implication, is perhaps atypical for Ryugu. Methods. We analyzed observations of the MASCOT landing area acquired by three instruments on board Hayabusa2: a camera (ONC), a near-infrared spectrometer (NIRS3), and a thermal infrared imager. We compared the landing area properties thus retrieved with those of the average Ryugu surface. Results. We selected several areas and landforms in the landing area for analysis: a small crater, a collection of smooth rocks, and the landing site itself. The crater is relatively blue and the rocks are relatively red. The spectral and thermophysical properties of the landing site are very close to those of the average Ryugu surface. The spectral properties of the MASCOT rock are probably close to average, but its thermal inertia may be somewhat higher. Conclusions. The MASCOT rock can also be considered representative of Ryugu. Some of the submillimeter-sized particles in the returned samples stand out because of their atypical spectral properties. Such particles may be present as inclusions in the MASCOT rock.
An Analysis of the Effect of Orgnizational Placement on the Annual Budget of Special Libraries
Creators: name: LeBlanc, Barbara L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002
Subjects: Placement of librarians
Surveys--Special Libraries
Budgets
Special libraries

description: This study surveyed a specific group of special librarians from across the United States known as one-person librarians or SOLO librarians. These librarians work alone in a special library setting. The study ascertained the organizational placement of SOLO libraries within their parent organizations and analyzed the effect of that placement on the annual budget allocated to each library. No uniformity of placement was found to exist amongst the libraries of the survey participants. However, despite the dissimilarities, the majority of respondents expressed satisfaction with their unique organizational placements. Satisfaction with organizational placement was found to be driven mainly by supervisory support and accessibility to users.
Non-causal computation
Creators: name: Baumeler, Ämin
name: Wolf, Stefan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Complexity (cs.CC)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Computation models such as circuits describe sequences of computation steps that are carried out one after the other. In other words, algorithm design is traditionally subject to the restriction imposed by a fixed causal order. We address a novel computing paradigm beyond quantum computing, replacing this assumption by mere logical consistency: We study non-causal circuits, where a fixed time structure within a gate is locally assumed whilst the global causal structure between the gates is dropped. We present examples of logically consistent non- causal circuits outperforming all causal ones; they imply that suppressing loops entirely is more restrictive than just avoiding the contradictions they can give rise to. That fact is already known for correlations as well as for communication, and we here extend it to computation.
description: 6 pages, 4 figures
Law Library Consortia
Creators: name: Sexton, Nicky A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2004
Subjects: Law libraries and collections
Cooperation--College and university libraries
Cooperative Library Systems
Law school libraries
Consortium of University Research Libraries

description: Law library consortia are comprised of academic, public, or private law libraries, or an eclectic mix of these types of libraries. This paper describes library consortia generally - explaining why libraries join a consortium and what the advantages of membership are - and law library consortia in particular. Two law library consortia, NELLCO and COSELL, are compared as examples of how two successful consortia provide different services to their member libraries. The results of two surveys that were taken for this paper are presented and examined. The author concludes that while law library consortia are distinctive from other library consortia, the aims of all library consortia are generally the same, namely to share resources to the benefit of all members, to reduce costs, and to improve services to patrons.
Microchimerism, PERV and Xenotransplantation
Creators: name: Denner, Joachim
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: xenotransplanation
subject: microchimerism
subject: porcine endogenous retroviruses
subject: detection methods
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::616 Krankheiten
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Microchimerism is the presence of cells in an individual that have originated from a genetically distinct individual. The most common form of microchimerism is fetomaternal microchimerism, i.e., cells from a fetus pass through the placenta and establish cell lineages within the mother. Microchimerism was also described after the transplantation of human organs in human recipients. Consequently, microchimerism may also be expected in xenotransplantation using pig cells or organs. Indeed, microchimerism was described in patients after xenotransplantations as well as in non-human primates after the transplantation of pig organs. Here, for the first time, a comprehensive review of microchimerism in xenotransplantation is given. Since pig cells contain porcine endogenous retroviruses (PERVs) in their genome, the detection of proviral DNA in transplant recipients may be misinterpreted as an infection of the recipient with PERV. To prevent this, methods discriminating between infection and microchimerism are described. This knowledge will be important for the interpretation of screening results in forthcoming human xenotransplantations.
Highly perturbed molecular gas in infalling cluster galaxies: the case of CGCG97-079
Creators: name: Scott, T. C.
name: Usero, A.
name: Brinks, E.
name: Bravo-Alfaro, H.
name: Cortese, L.
name: Boselli, A.
name: Argudo-Fernandez, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report on CO (J = 2 - 1) mapping with the IRAM 30-m HERA receiver array of CGCG 97-079, an irregular galaxy in the merging galaxy cluster Abell 1367 (z = 0.022). We find that $\sim$ 80% of the detected CO (J = 2 - 1) is projected within a 16 arcsec$^{2}$ (6.5 kpc$^{2}$) region to the north and west of the optical/NIR centre, with the intensity maximum offset $\sim 10$ arcsec (4 kpc) NW of the optical/NIR centre and $\sim$ 7 arcsec (3 kpc) south-east of the HI intensity maximum. Evolutionary synthesis models indicate CGCG 97-079 experienced a burst of star formation $\sim$ 10$^8$ yr ago, most likely triggered by a tidal interaction with CGCG 97-073. For CGCG 97-079 we deduce an infall velocity to the cluster of $\sim$ 1000 km s$^{-1}$ and moderate ram pressure (P$_\mathrm{ram} \sim 10^{-11}$ dyn cm$^{-2}$). The observed offset in CGCG 97-079 of the highest density HI and CO (J = 2 - 1) from the stellar components has not previously been observed in galaxies currently undergoing ram pressure stripping, although previous detailed studies of gas morphology and kinematics during ram pressure stripping were restricted to significantly more massive galaxies with deeper gravitational potential wells. We conclude the observed cold gas density maxima offsets are most likely the result of ram pressure and/or the high-speed tidal interaction with CGCG 97-073. However ram pressure stripping is likely to be playing a major role in the perturbation of lower density gas.
description: 12 pages, 7 figures
Biocatalytic Synthesis Using Self-Assembled Polymeric Nano- and Microreactors
Creators: name: Wang, Yangxin
name: Zhao, Qingcai
name: Haag, Rainer
name: Wu, Changzhu
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Biocatalytic Synthesis
subject: Enzymatic Reactions
subject: Polymeric Reactors
subject: Self-Assembly
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Biocatalysis is increasingly being explored for the sustainable development of green industry. Though enzymes show great industrial potential with their high efficiency, specificity, and selectivity, they suffer from poor usability and stability under abiological conditions. To solve these problems, researchers have fabricated nano- and micro-sized biocatalytic reactors based on the self-assembly of various polymers, leading to highly stable, functional, and reusable biocatalytic systems. This Review highlights recent progress in self-assembled polymeric nano- and microreactors for biocatalytic synthesis, including polymersomes, reverse micelles, polymer emulsions, Pickering emulsions, and static emulsions. We categorize these reactors into monophasic and biphasic systems and discuss their structural characteristics and latest successes with representative examples. We also consider the challenges and potential solutions associated with the future development of this field.
Effects of Flupyradifurone and Two Reference Insecticides Commonly Used in Toxicological Studies on the Larval Proteome of the Honey bee Apis mellifera
Creators: name: Kablau, Arne
name: Erler, Silvio
name: Eckert, Jakob H.
name: Pistorius, Jens
name: Sharbati, Soroush
name: Einspanier, Ralf
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: sublethal effect
subject: insecticide
subject: larval development
subject: pesticide
subject: 2D protein electrophoresis
subject: protein identification
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::577 Ökologie
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::572 Biochemie
subject: 600 Technik, Medizin, angewandte Wissenschaften::630 Landwirtschaft::630 Landwirtschaft und verwandte Bereiche

description: The western honey bee Apis mellifera is globally distributed due to its beekeeping advantages and plays an important role in the global ecology and economy. In recent decades, several studies have raised concerns about bee decline. Discussed are multiple reasons such as increased pathogen pressure, malnutrition or pesticide use. Insecticides are considered to be one of the major factors. In 2013, the use of three neonicotinoids in the field was prohibited in the EU. Flupyradifurone was introduced as a potential successor; it has a comparable mode of action as the banned neonicotinoids. However, there is a limited number of studies on the effects of sublethal concentrations of flupyradifurone on honey bees. Particularly, the larval physiological response by means of protein expression has not yet been studied. Hence, the larval protein expression was investigated via 2D gel electrophoresis after following a standardised protocol to apply sublethal concentrations of the active substance (flupyradifurone 10 mg/kg diet) to larval food. The treated larvae did not show increased mortality or an aberrant development. Proteome comparisons showed clear differences concerning the larval metabolism, immune response and energy supply. Further field studies are needed to validate the in vitro results at a colony level.
A Comparison of WordPress and Movable Type: Two Main Open Source Content Management Systems
Creators: name: Gao, Lu
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011
Subjects: Internet content--Administration
Open source software
Internet content

description: The purpose of this study was to investigate the reasons that made WordPress a  successful weblog publishing system and winning the battle against Movable Type. A  detailed comparison was conducted in three main areas: Ease of Use, Programming  Language, and the Ecosystem. Results indicated that the simplicity of using  WordPress in terms of system installation, content management and maintenance are  the top reasons that users choose WordPress instead of Movable Type. Choosing Perl  as the programming language also made Movable Type difficult to use because of the  long learning curve. Although Movable Type was started years before WordPress, it  lacks openness as an open source system, and does not have enough support from its  community. The results of this study could provide insights for open source  community contributors and Content Management System (CMS) users to better  maintain and use open source technologies.
Tunable Coupling Architectures with Capacitively Connecting Pads for Large-Scale Superconducting Multi-Qubit Processors
Creators: name: Liang, Gui-Han
name: Song, Xiao-Hui
name: Deng, Cheng-Lin
name: Gu, Xu-Yang
name: Yan, Yu
name: Mei, Zheng-Yang
name: Zhao, Si-Lu
name: Bu, Yi-Zhou
name: Xiao, Yong-Xi
name: Yu, Yi-Han
name: Wang, Ming-Chuan
name: Liu, Tong
name: Shi, Yun-Hao
name: Zhang, He
name: Li, Xiang
name: Li, Li
name: Wang, Jing-Zhe
name: Tian, Ye
name: Zhao, Shi-Ping
name: Xu, Kai
name: Fan, Heng
name: Xiang, Zhong-Cheng
name: Zheng, Dong-Ning
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have proposed and experimentally verified a tunable inter-qubit coupling scheme for large-scale integration of superconducting qubits. The key feature of the scheme is the insertion of connecting pads between qubit and tunable coupling element. In such a way, the distance between two qubits can be increased considerably to a few millimeters, leaving enough space for arranging control lines, readout resonators and other necessary structures. The increased inter-qubit distance provides more wiring space for flip-chip process and reduces crosstalk between qubits and from control lines to qubits. We use the term Tunable Coupler with Capacitively Connecting Pad (TCCP) to name the tunable coupling part that consists of a transmon coupler and capacitively connecting pads. With the different placement of connecting pads, different TCCP architectures can be realized. We have designed and fabricated a few multi-qubit devices in which TCCP is used for coupling. The measured results show that the performance of the qubits coupled by the TCCP, such as $T_1$ and $T_2$, was similar to that of the traditional transmon qubits without TCCP. Meanwhile, our TCCP also exhibited a wide tunable range of the effective coupling strength and a low residual ZZ interaction between the qubits by properly tuning the parameters on the design. Finally, we successfully implemented an adiabatic CZ gate with TCCP. Furthermore, by introducing TCCP, we also discuss the realization of the flip-chip process and tunable coupling qubits between different chips.
description: Main text: 7 pages, 6 figures
Fluctuations around the diagonal in Bernoulli-Exponential first passage percolation
Creators: name: Vető, Bálint
Publisher: name: arXiv
Year: 2023
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We prove that the rescaled one-point fluctuations of the boundary of the percolation cluster in the Bernoulli-Exponential first passage percolation around the diagonal converge to a new family of distributions. The limit law is indexed by the rescaled level of percolation $s\ge0$, it is Gaussian for $s=0$ and it converges to the Tracy--Widom distribution as $s\to\infty$. For a fixed level $s>0$ the width of the cluster in the limit as a function of a time parameter $t$ is of order $t^{2/3}$ with Tracy--Widom fluctuations as in the discrete model.
description: 14 pages, 1 figure
title: About the theme of the 1999 CIP/OUQ conference - why should we be interested in the city-region?
title: La thématique du congrès 1999 de l'ICU/OUQ : Pourquoi s'intéresser à la ville et sa région?
titleType: AlternativeTitle
Creators: name: Trudel, Jacques
Publisher: name: Vancouver Island University - Royal Roads University
Year: 1999
Subjects: subject: Congresses and conventions--Québec (Province)--Montréal
subject: City planning
subject: Congrès et conventions--Québec (Province)--Montréal
subject: Aménagement de la ville

description: The essential goal of the 1999 CIP Conference in Montréal can thus be stated as follows: to ensure that planners, here and abroad, individually and collectively, play a central role and are fully capable of exercising their profession in the new regional context of the 21st century society.
description: C'est là le but essentiel qu'on peut assigner au prochain congrès de Montréal : contribuer à faire en sorte que les urbanistes d'ici et d'ailleurs, individuellement et collectivement, soient au coeur de l'action et pleinement en mesure d'exercer leur profession dans le nouveau contexte régional des sociétés du XXIe siècle.
description: Text in English and French.
description: https://viurrspace.ca/bitstream/handle/10613/6636/Trudel.pdf?sequence=3
Soil Storage Conditions Alter the Effects of Tire Wear Particles on Microbial Activities in Laboratory Tests
Creators: name: Xu, Yaqi
name: Meidl, Peter
name: Bi, Mohan
name: Zhu, Yanjie
name: Rillig, Matthias C.
name: Kim, Shin Woong
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: enzymes
subject: microbial activities
subject: microplastic
subject: soil respiration
subject: soil pretreatment
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: In this study, we focused on the fact that soil storage conditions in the laboratory have never been considered as a key factor potentially leading to high variation when measuring effects of microplastics on soil microbial activity. We stored field-collected soils under four different conditions [room-temperature storage, low-temperature storage (LS), air drying (AD), and heat drying] prior to the experiment. Each soil was treated with tire wear particles (TWPs), and soil microbial activities and water aggregate stability were investigated after soil incubation. As a result, microbial activities, including soil respiration and three enzyme activities (β-glucosidase, N-acetyl-β-glucosaminidase, and phosphatase), were shown to depend on soil storage conditions. Soil respiration rates increased with the addition of TWPs, and the differences from the control group (no TWPs added) were more pronounced in the AD TWP treatment than in soils stored under other conditions. In contrast, phosphatase activity followed an opposing trend after the addition of TWPs. The AD soil had higher phosphatase activity after the addition of TWPs, while the LS soil had a lower level than the control group. We suggest that microplastic effects in laboratory experiments can strongly depend on soil storage conditions.
Solandra brachycalyx Kuntze
Creators: name: MONRO, A. K.
name: SANTAMARÍA-AGUILAR, D.
name: GONZÁLEZ, F.
name: CHACÓN, O.
name: SOLANO, D.
name: RODRÍGUEZ, A.
name: ZAMORA, N.
name: FEDELE, E.
name: CORREA, M.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Solanales
Solanaceae
Solandra
Solandra brachycalyx

description: Solandra brachycalyx Kuntze
Caliz del Señor, Campana, Papa miel, Papturra (CR).
 Terrestrial shrubs. Distribution in PILA 1400–2900 m, mixed forest in transition to cloud forest, cloud forest, low elevation oak forest, high elevation oak forest. Global distribution: Nicaragua to Panama. Records: J. A. Duke 13625 (MO), L. Angulo 255 (CR, INB).
description: Published as part of MONRO, A. K., SANTAMARÍA-AGUILAR, D., GONZÁLEZ, F., CHACÓN, O., SOLANO, D., RODRÍGUEZ, A., ZAMORA, N., FEDELE, E. & CORREA, M., 2017, A first checklist to the vascular plants of La Amistad International Park (PILA), Costa Rica-Panama, pp. 448-450 in Phytotaxa 322 (1) on pages 448-450, DOI: 10.11646/phytotaxa.322.1.1, http://zenodo.org/record/13698397
Nernst-Ettingshausen effect at the trivial-nontrivial band ordering in topological crystalline insulator Pb1-xSnxSe
Creators: name: Dybko, K.
name: Pfeffer, P.
name: Szot, M.
name: Szczerbakow, A.
name: Reszka, A.
name: Story, T.
name: Zawadzki, W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The transverse Nernst Ettingshausen (N-E) effect and electron mobility in Pb$_{1-x}$Sn$_x$Se alloys are studied experimentally and theoretically as functions of temperature and chemical composition in the vicinity of vanishing energy gap $E_g$. The study is motivated by the recent discovery that, by lowering the temperature, one can change the band ordering from trivial to nontrivial one in which the topological crystalline insulator states appear at the surface. Our work presents several new aspects. It is shown experimentally and theoretically that the bulk N-E effect has a maximum when the energy gap $E_g$ of the mixed crystal goes through zero value. This result contradicts the claim made in the literature that the N-E effect changes sign when the gap vanishes. We successfully describe $dc$ transport effects in the situation of extreme band's nonparabolicity which, to the best of our knowledge, has never been tried before. A situation is reached in which both two-dimensional bands (topological surface states) and three-dimensional bands are linear in electron \textbf{k} vector. Various scattering modes and their contribution to transport phenomena in Pb$_{1-x}$Sn$_x$Se are analyzed. As the energy gap goes through zero, some transport integrals have a singular (nonphysical) behaviour and we demonstrate how to deal with this problem by introducing damping.
description: 23 pages, 6 figures
Euler characteristic reciprocity for chromatic, flow and order polynomials
Creators: name: Hasebe, Takahiro
name: Miyatani, Toshinori
name: Yoshinaga, Masahiko
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 06A11, 05A19, 05C31, 14P10

description: The Euler characteristic of a semialgebraic set can be considered as a generalization of the cardinality of a finite set. An advantage of semialgebraic sets is that we can define "negative sets" to be the sets with negative Euler characteristics. Applying this idea to posets, we introduce the notion of semialgebraic posets. Using "negative posets", we establish Stanley's reciprocity theorems for order polynomials at the level of Euler characteristics. We also formulate the Euler characteristic reciprocities for chromatic and flow polynomials.
description: 16 pages; flow polynomial reciprocity added; title changed
Branch point strength controls species-specific CAMK2B alternative splicing and regulates LTP
Creators: name: Franz, Andreas
name: Weber, A. Ioana
name: Preußner, Marco
name: Dimos, Nicole
name: Stumpf, Alexander
name: Ji, Yanlong
name: Moreno-Velasquez, Laura
name: Voigt, Anne
name: Schulz, Frederic
name: Neumann, Alexander
name: Kuropka, Benno
name: Kühn, Ralf
name: Urlaub, Henning
name: Schmitz, Dietmar
name: Wahl, Markus C.
name: Heyd, Florian
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: species-specific CAMK2B
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Regulation and functionality of species-specific alternative splicing has remained enigmatic to the present date. Calcium/calmodulin-dependent protein kinase IIβ (CaMKIIβ) is expressed in several splice variants and plays a key role in learning and memory. Here, we identify and characterize several primate-specific CAMK2B splice isoforms, which show altered kinetic properties and changes in substrate specificity. Furthermore, we demonstrate that primate-specific CAMK2B alternative splicing is achieved through branch point weakening during evolution. We show that reducing branch point and splice site strengths during evolution globally renders constitutive exons alternative, thus providing novel mechanistic insight into cis-directed species-specific alternative splicing regulation. Using CRISPR/Cas9, we introduce a weaker, human branch point sequence into the mouse genome, resulting in strongly altered Camk2b splicing in the brains of mutant mice. We observe a strong impairment of long-term potentiation in CA3-CA1 synapses of mutant mice, thus connecting branch point–controlled CAMK2B alternative splicing with a fundamental function in learning and memory.
Reconstruction of Solar Extreme Ultraviolet Flux 1740-2015
Creators: name: Svalgaard, Leif
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar Extreme Ultraviolet (EUV) radiation creates the conducting E-layer of the ionosphere, mainly by photo ionization of molecular Oxygen. Solar heating of the ionosphere creates thermal winds which by dynamo action induce an electric field driving an electric current having a magnetic effect observable on the ground, as was discovered by G. Graham in 1722. The current rises and sets with the Sun and thus causes a readily observable diurnal variation of the geomagnetic field, allowing us the deduce the conductivity and thus the EUV flux as far back as reliable magnetic data reach. High-quality data go back to the 'Magnetic Crusade' of the 1830s and less reliable, but still usable, data are available for portions of the hundred years before that. J.R. Wolf and, independently, J.-A. Gautier discovered the dependence of the diurnal variation on solar activity, and today we understand and can invert that relationship to construct a reliable record of the EUV flux from the geomagnetic record. We compare that to the F10.7 flux and the sunspot number, and find that the reconstructed EUV flux reproduces the F10.7 flux with great accuracy. On the other hand, it appears that the Relative Sunspot Number as currently defined is beginning to no longer be a faithful representation of solar magnetic activity, at least as measured by the EUV and related indices. The reconstruction suggests that the EUV flux reaches the same low (but non-zero) value at every sunspot minimum (possibly including Grand Minima), representing an invariant 'solar magnetic ground state'.
description: 35 pages; 27 Figures
title: Ethics as Embodied Practice
title: Reflexivity, Dialogue and Collaboration – in Conversation with Prof. Dr. Hansjörg Dilger
titleType: Subtitle
Creators: name: Castillo, Rosa Cordillera A.
name: Dilger, Hansjörg
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Anthropology
subject: FOS: Sociology
subject: methodology
subject: research ethics
subject: institutional review boards
subject: interview
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::301 Soziologie, Anthropologie

description: Hansjörg Dilger is Professor of Social and Cultural Anthropology at Freie Universität Berlin with a specialisation in critical medical anthropology and the anthropology of religious diversity. His research has a regional focus on Tanzania and South Africa and migratory contexts in Germany. He was a visiting professor at the University of Vienna and visiting fellow at the University of Witwatersrand (both in 2014) and Assistant Professor of Anthropology and African Studies at the University of Florida (2005–2007). Between 2015 and 2019, he was President of the German Anthropological Association (GAA): in this capacity, he and the GAA board pushed toward the firm integration of ethical reflexivity in Social and Cultural Anthropology in Germany. Rosa Cordillera A. Castillo talked with him about research ethics and the role of professional organisations and academic institutions.
Solving an Old Puzzle: Elucidation and Evaluation of the Binding Mode of Salvinorin A at the Kappa Opioid Receptor
Creators: name: Puls, Kristina
name: Wolber, Gerhard
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: GPCRs
subject: kappa opioid receptor
subject: Salvinorin A
subject: natural products
subject: docking
subject: molecular dynamics simulations
subject: dynophores
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::615 Pharmakologie, Therapeutik

description: The natural product Salvinorin A (SalA) was the first nitrogen-lacking agonist discovered for the opioid receptors and exhibits high selectivity for the kappa opioid receptor (KOR) turning SalA into a promising analgesic to overcome the current opioid crisis. Since SalA’s suffers from poor pharmacokinetic properties, particularly the absence of gastrointestinal bioavailability, fast metabolic inactivation, and subsequent short duration of action, the rational design of new tailored analogs with improved clinical usability is highly desired. Despite being known for decades, the binding mode of SalA within the KOR remains elusive as several conflicting binding modes of SalA were proposed hindering the rational design of new analgesics. In this study, we rationally determined the binding mode of SalA to the active state KOR by in silico experiments (docking, molecular dynamics simulations, dynophores) in the context of all available mutagenesis studies and structure-activity relationship (SAR) data. To the best of our knowledge, this is the first comprehensive evaluation of SalA’s binding mode since the determination of the active state KOR crystal structure. SalA binds above the morphinan binding site with its furan pointing toward the intracellular core while the C2-acetoxy group is oriented toward the extracellular loop 2 (ECL2). SalA is solely stabilized within the binding pocket by hydrogen bonds (C210ECL2, Y3127.35, Y3137.36) and hydrophobic contacts (V1182.63, I1393.33, I2946.55, I3167.39). With the disruption of this interaction pattern or the establishment of additional interactions within the binding site, we were able to rationalize the experimental data for selected analogs. We surmise the C2-substituent interactions as important for SalA and its analogs to be experimentally active, albeit with moderate frequency within MD simulations of SalA. We further identified the non-conserved residues 2.63, 7.35, and 7.36 responsible for the KOR subtype selectivity of SalA. We are confident that the elucidation of the SalA binding mode will promote the understanding of KOR activation and facilitate the development of novel analgesics that are urgently needed.
Changes in the Information Use Patterns of College Freshmen
Creators: name: Prince, Monique
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003
Subjects: Information seeking behavior--College and university students
Use studies--College and university students
Undergraduate students--College and academic libraries
Information seeking behavior--Undergraduate students
Kuhlthau, Carol Collier, 1937-

description: Based of Carol C. Kuhlthau's model of information seeking (1988), this qualitative study examines the first two months of transition from high school to college through a series of three interviews with two freshmen at the University of North Carolina at Chapel Hill.  The resources students were accustomed to using in the various stages of what Kuhlthau termed "the information search process" in high school is compared to the resources they used during their first eight weeks of college.  The point of the study was to determine how and why information seeking behaviors changed in the first few weeks of college, and how a student's adaptation to an academic library's resources might affect their feelings about research.  Findings revealed that comfort using library resources and students' perceptions of the usefulness or applicability of library materials informed whether they adapted to or rejected them when presented with an information need.
The Scholarly Life and the Archival Life: An Exploratory Study of the Sarah Lois Wadley Diary and Its Usage by Historians
Creators: name: McCammon, Cale
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013
Subjects: Archives--Cataloging
Finding aids
Digitization of archival materials

description: As documents of complicated socio-cultural standing, women's diaries frustrate traditional approaches to archival description and speak to the subjective nature of the practice.  This exploratory study traces the scholarly life of the Southern Historical Collection's Sarah Lois Wadley diary in relation to its finding aid and to significant events in its archival existence.  It follows the citation of 197 of the diary's dated entries across 37 historical books and statistically analyzes the usage of described entries versus the usage of non-described entries in order to explore the connection between archival description and scholarly interpretation. In addition to arriving at correlations that demonstrate digitization and encoding's positive effect on access, the study discusses the intersection between historical and archival judgment and also the potential for descriptive practices to embrace collaboration.