cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nanoplastics modulate the outcome of a zooplankton–microparasite interaction
Creators: name: Mavrianos, Stylianos
name: Manzi, Florent
name: Agha, Ramsy
name: Azoubib, Noemi
name: Schampera, Charlotte
name: Wolinska, Justyna
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Daphnia
subject: disease
subject: hormesis
subject: host–parasite
subject: Metschnikowia
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: 1. The accumulation and degradation of plastic waste in freshwater bodies poses a threat to aquatic biota. Microplastics (<5 mm) can transfer upwards in food chains and have been shown to induce deleterious effects on important players of freshwater ecosystems, including zooplankton. 2. A smaller category of microplastic particles, the so‐called nanoplastics (≤100 nm) raise special concern due to their ability to act at sub‐cellular and molecular levels. Despite growing knowledge of their effects on physiological traits of individual species, the way they affect interactions between species remains largely unexplored. 3. We studied the effects of nanoplastics on host–parasite interactions by exposing the zooplankton host Daphnia galeata × longispina to the parasitic yeast Metschnikowia bicuspidata without plastic and at two different concentrations of polystyrene nanoplastic beads (100 nm): 5 and 20 mg/L. 4. Both concentrations of nanoplastics increased the proportion of infected hosts; at the higher concentration, however, elevated rates of host mortality and impaired spore production cancelled out the parasite's advantage. Consequently, parasite success was greatest at the lower level of nanoplastic exposure. 5. Infection by Metschnikowia greatly reduced host lifespan and total offspring production (regardless of nanoplastic exposure), but only decreased the proportion of successfully reproducing hosts when Daphnia were additionally exposed to nanoplastics. Nanoplastics alone did not cause such a reduction in host fitness parameters: instead, the lower concentration increased lifetime offspring production by about 50%, suggesting hormesis. 6. Given that parasitism is a ubiquitous lifestyle in nature and that parasites can play important roles in the shaping and functioning of ecosystems, these results highlight the importance of including interactions between host and parasite species as alternative ecotoxicological endpoints to better assess the ecological consequences of plastic pollution.
Apterostigma carinatum Lattke 1997
Creators: name: Mera-Rodríguez, Daniela
name: Serna, Francisco
name: Sosa-Calvo, Jeffrey
name: Lattke, John
name: Rabeling, Christian
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Apterostigma
Apterostigma carinatum

description: (4) Apterostigma carinatum Lattke, 1997 Figure 2G, HMaterial examined. COLOMBIA: Chocó • 1 worker; Lloró; 05°30′39″N, 76°32′40″W; alt. 115 m; 12 Dec. 2001; Y. Palacios, O. Mena leg.; UNAB 5458; Chocó • 1 worker; Lloró; 05°30′00″N, 076°31′00″W; alt. 97 m; 18 Nov. 2002; O. Mena, Y. Palacios leg.; UNAB 5458; Vaupés • 1 worker; Taraira; 01°04′00″S, 069°31′00″W; alt. 85 m; 4–20 May 2001; A. Sabogal leg.; UNAB 5458. Identification. Frontal lobe in full-face view either con- vex or triangular, with rounded apex; anterior margin of clypeus in full-face view convex, with shiny cuticular strip; dorsal mesosomal carina present, in lateral view low and uniform; petiole in lateral view elongate; dorsal and ventral curvatures of gaster in lateral view similar in size; lateral carina of gaster inconspicuous; and meta- coxa with dorsoposterior keel (Lattke 1997). Distribution. This species is known to occur in Ecua- dor and the Pacific coast of Colombia. The present record from Vaupés expands its geographic distribution to the Amazonian region of the country (Fig. 1A) (Lattke 1997; Solar et al. 2016).
description: Published as part of Mera-Rodríguez, Daniela, Serna, Francisco, Sosa-Calvo, Jeffrey, Lattke, John & Rabeling, Christian, 2020, A checklist of the non-leaf-cutting fungus-growing ants (Hymenoptera, Formicidae) from Colombia, with new biogeographic records, pp. 1205-1227 in Check List 16 (5) on page 1208, DOI: 10.15560/16.5.1205, http://zenodo.org/record/4059086
description: {"references": ["Lattke JE (1997) Revision del genero Apterostigma Mayr: (Hymenoptera: Formicidae). Arquivos de Zoologia 34 (5): 121 - 221. https: // doi. org / 10.11606 / issn. 2176 - 7793. v 34 i 5 p 121 - 221", "Solar RR de C, Barlow J, Andersen AN, Schoereder JH, Berenguer E, Ferreira JN, Gardner TA (2016) Biodiversity consequences of land-use change and forest disturbance in the Amazon: a multiscale assessment using ant communities. Biological Conservation 197: 98 - 107. https: // doi. org / 10.1016 / j. biocon. 2016.03.005"]}
Colorado water, July/August 2015
Creators: name: Middleton, Lindsey A.
name: Colorado Water Institute, Publisher
Publisher: name: Mountain Scholar
Year: 2015
Subjects: subject: Water resources development -- Colorado
subject: Water use -- Colorado
subject: Water-supply -- Colorado
subject: Water-supply -- Management -- Colorado

description: The newsletter is devoted to enhancing communication between Colorado water users and managers and faculty at the state's research universities.
description: Newsletter of the Water Center of Colorado State University. Theme: Colorado Water Institute: fifty years: research, education, outreach.
Statistical model for the effects of phase and momentum randomization on electron transport
Creators: name: Stegmann, Thomas
name: Zilly, Matías
name: Ujsághy, Orsolya
name: Wolf, Dietrich E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A simple statistical model for the effects of dephasing on electron transport in one-dimensional quantum systems is introduced, which allows to adjust the degree of phase and momentum randomization independently. Hence, the model is able to describe the transport in an intermediate regime between classic and quantum transport. The model is based on Büttiker's approach using fictitious reservoirs for the dephasing effects. However, in contrast to other models, at the fictitious reservoirs complete phase randomization is assumed, which effectively divides the system into smaller coherent subsystems, and an ensemble average over randomly distributed dephasing reservoirs is calculated. This approach reduces not only the computation time but allows also to gain new insight into system properties. In this way, after deriving an efficient formula for the disorder-averaged resistance of a tight-binding chain, it is shown that the dephasing-driven transition from localized-exponentially to ohmic-linear behavior is not affected by the degree of momentum randomizing dephasing.
description: 6 pages, 7 figures
Deciphering the Whisper of Volcanoes: Monitoring Velocity Changes at Kamchatka's Klyuchevskoy Group With Fluctuating Noise Fields
Creators: name: Makus, Peter
name: Sens‐Schönfelder, Christoph
name: Illien, Luc
name: Walter, Thomas R.
name: Yates, Alexander
name: Tilmann, Frederik
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: seismology
subject: volcano monitoring
subject: machine learning
subject: ambient noise
subject: seismic velocity change
subject: time varying earth structure
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften

description: Volcanic inflation and deflation often precede eruptions and can lead to seismic velocity changes (dv/v $dv/v$) in the subsurface. Recently, interferometry on the coda of ambient noise‐cross‐correlation functions yielded encouraging results in detecting these changes at active volcanoes. Here, we analyze seismic data recorded at the Klyuchevskoy Volcanic Group in Kamchatka, Russia, between summer of 2015 and summer of 2016 to study signals related to volcanic activity. However, ubiquitous volcanic tremors introduce distortions in the noise wavefield that cause artifacts in the dv/v $dv/v$ estimates masking the impact of physical mechanisms. To avoid such instabilities, we propose a new technique called time‐segmented passive image interferometry. In this technique, we employ a hierarchical clustering algorithm to find periods in which the wavefield can be considered stationary. For these periods, we perform separate noise interferometry studies. To further increase the temporal resolution of our results, we use an AI‐driven approach to find stations with similar dv/v $dv/v$ responses and apply a spatial stack. The impacts of snow load and precipitation dominate the resulting dv/v $dv/v$ time series, as we demonstrate with the help of a simple model. In February 2016, we observe an abrupt velocity drop due to the M7.2 Zhupanov earthquake. Shortly after, we register a gradual velocity increase of about 0.3% at Bezymianny Volcano coinciding with surface deformation observed using remote sensing techniques. We suggest that the inflation of a shallow reservoir related to the beginning of Bezymianny's 2016/2017 eruptive cycle could have caused this local velocity increase and a decorrelation of the correlation function coda.
Biological Effects of Black Phosphorus Nanomaterials on Mammalian Cells and Animals
Creators: name: Zhang, Xuejiao
name: Donskyi, Ievgen S.
name: Tang, Weihao
name: Deng, Shuo
name: Liu, Daxu
name: Zhang, Siyu
name: Zhao, Qing
name: Xing, Baoshan
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Biological Effects
subject: Black Phosphorus Nanomaterials
subject: Environmental Exposure
subject: Intrinsic Chemical Activity
subject: Toxicity Mechanism
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: The remarkable progress of applied black phosphorus nanomaterials (BPNMs) is attributed to BP's outstanding properties. Due to its potential for applications, environmental release and subsequent human exposure are virtually inevitable. Therefore, how BPNMs impact biological systems and human health needs to be considered. In this comprehensive Minireview, the most recent advancements in understanding the mechanisms and regulation factors of BPNMs’ endogenous toxicity to mammalian systems are presented. These achievements lay the groundwork for an understanding of its biological effects, aimed towards establishing regulatory principles to minimize the adverse health impacts.
Apterostigma manni Weber 1938
Creators: name: Mera-Rodríguez, Daniela
name: Serna, Francisco
name: Sosa-Calvo, Jeffrey
name: Lattke, John
name: Rabeling, Christian
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Apterostigma
Apterostigma manni

description: (11) Apterostigma manni Weber, 1938 Figure 4E, FMaterial examined. COLOMBIA: Antioquia • 2 workers; Amalfi; 06°55′00″N, 075°04′00″W; alt. 990 m; 30 Jul. 1997; F. Sernaleg.; UNAB 4745; MEFLG 5787; Antioquia • 1 worker; Santafé de Antioquia; 06°33′41″N, 075°49′54″W; alt. 600 m; 06 Oct. 2000; E. Vergara, F. Sernaleg.; UNAB 4744; Caquetá • 1 worker; Floren- cia; 01°30′4″N, 075°39′42″W; alt. 280 m; 01 Sep. 2017; UNAB members leg.; UNAB 4745. Identification. Eyes reniform; mesopleural carina welldeveloped and lamelliform; postpetiole usually with ventral lamelliform longitudinal carina; body yellowish or light brown; and abdominal sternite IV with antero- median transverse carina (Lattke 1997). Distribution.Apterostigma manni is present in southern Central America (Costa Rica and Panama), northwest- ern South America (Bolivia, Colombia, Peru, and Ven- ezuela), and in the Brazilian states of Bahia and Minas Gerais (Lattke 1997; Fernández and Sendoya 2004).
description: Published as part of Mera-Rodríguez, Daniela, Serna, Francisco, Sosa-Calvo, Jeffrey, Lattke, John & Rabeling, Christian, 2020, A checklist of the non-leaf-cutting fungus-growing ants (Hymenoptera, Formicidae) from Colombia, with new biogeographic records, pp. 1205-1227 in Check List 16 (5) on page 1211, DOI: 10.15560/16.5.1205, http://zenodo.org/record/4059086
description: {"references": ["Weber NA (1938) The biology of the fungus-growing ants. Part IV. Additional new forms. Part V. The Attini of Bolivia. Revista de Entomologia 9 (1 - 2): 154 - 206.", "Lattke JE (1997) Revision del genero Apterostigma Mayr: (Hymenoptera: Formicidae). Arquivos de Zoologia 34 (5): 121 - 221. https: // doi. org / 10.11606 / issn. 2176 - 7793. v 34 i 5 p 121 - 221", "Fernandez F, Sendoya S (2004) Synonymic list of Neotropical ants (Hymenoptera: Formicidae). Biota Colombiana 5 (1): 3 - 105."]}
Passive Duplicate Address Detection for Dynamic Host Configuration Protocol (DHCP)
Creators: name: Forte, Andrea G.
name: Shin, Sangho
name: Schulzrinne, Henning G.
Publisher: name: Columbia University
Year: 2006
Subjects: Computer science

description: During a layer-3 handoff, address acquisition via DHCP is often the dominant source of handoff delay, duplicate address detection (DAD) being responsible for most of the delay. We propose a new DAD algorithm, passive DAD (pDAD), which we show to be effective, yet introduce only a few milliseconds of delay. Unlike traditional DAD, pDAD also detects the unauthorized use of an IP address before it is assigned to a DHCP client.
Possibility and Impossibility of the Entropy Balance in Lattice Boltzmann Collisions
Creators: name: Gorban, A. N.
name: Packwood, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We demonstrate that in the space of distributions operated on by lattice Boltzmann methods that there exists a vicinity of the equilibrium where collisions with entropy balance are possible and, at the same time, there exist an area of nonequilibrium distributions where such collisions are impossible. We calculate and graphically represent these areas for some simple entropic equilibria using single relaxation time models. Therefore it is shown that the definition of an entropic LBM is incomplete without a strategy to deal with certain highly nonequilibrium states. Such strategies should be explicitly stated as they may result in the production of additional entropy.
description: v2 minor misprint corrections
In Situ Detection of Iron in Oxidation States ≥ IV in Cobalt‐Iron Oxyhydroxide Reconstructed during Oxygen Evolution Reaction
Creators: name: Reith, Lukas
name: Hausmann, Jan Niklas
name: Mebs, Stefan
name: Mondal, Indranil
name: Dau, Holger
name: Driess, Matthias
name: Menezes, Prashanth W.
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: bimetallic electrocatalysts
subject: in situ spectroscopy
subject: layered double hydroxides
subject: precatalysts
subject: redox noninnocent oxo ions
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Cobalt‐iron oxyhydroxides (CoFeOOHx) are among the most active catalysts for the oxygen evolution reaction (OER). However, their redox behavior and the electronic and chemical structure of their active sites are still ambiguous. To shed more light on this, the complete and rapid reconstruction of four helical cobalt‐iron borophosphates with different Co:Fe ratios into disordered cobalt‐iron oxyhydroxides can be achieved, which are electrolyte‐penetrable and thus most transition metal sites can potentially participate in the OER. To track the redox behavior and to identify the active structure, quasi in situ X‐ray absorption spectroscopy is applied. Iron in high oxidation states ≥ IV (Fe4+) and its substantial redox behavior with an average oxidation state of around 2.8 to above 3.2 is detected. Furthermore, a 6% contraction of the Fe‐O bond length compared to Fe3+OOH references is observed during OER and a strong distortion of the [MO6] octahedra is identified. It is hypothesized that this bond contraction is caused by the presence of oxyl radicals and that di‐µ‐oxyl radical bridged cobalt‐iron centers are the active sites. It is anticipated that the detailed electronic and structural description can substantially contribute to the debate on the nature of the active site in bimetallic iron‐containing OER catalysts.
Development and assessment of a novel resin injection repair procedure for impact damaged composites
Creators: name: G. Slattery, Padraic
Publisher: name: University of Limerick
Year: 2023

description: Composites are finding increasing use in structural applications due to their high specific properties. However, while significant research has taken place into the manufacture and design of composite structures, relatively little research has focused on their repair. Impact damage is of particular concern due to the low through-thickness strength of composites in comparison to metals. To allow the continuing expansion in use of composites, the development and assessment of a novel resin injection repair method was investigated. A carbon fibre epoxy resin pre-impregnated material, HTA6376, was examined. The use of cyanoacrylates (CAs) as the repair resin was investigated due to their very low viscosity. The strength of the bond formed between the fracture surfaces of HTA6376 and CA was examined in both Mode I and Mode II conditions. Experimental tests were performed at both the micro- and macro-scale. The strength of the bond formed between the fracture surfaces of HTA6376 and CA was found to be greater than the original interlaminar strength. Micro-scale specimens were found to have failed due to adhesive failure in contrast to macro-scale specimens which failed due to cohesive failure. A repair rig requiring only common workshop materials and a repair procedure suitable for CA were developed. The compressive and flexural strength of impact damaged specimens were successfully restored as a result of the developed resin injection repair procedure. Repairs performed with toughened CA were not as successful as repairs performed with standard CA due to their higher viscosity. Tensile strength was not restored as a result of this repair method although the use of patches resulted in an increase in tensile strength. Overall, it was found that the developed repair procedure can successfully restore the compressive and flexural strength of damaged composites when the impact damage consists of breakout where the plies close to the impacted surface are not fractured.
Can climate warming save Daphnia from parasites? Reduced parasite prevalence in Daphnia populations from artificially heated lakes
Creators: name: Dziuba, Marcin Krzysztof
name: Manzi, Florent
name: Cerbin, Slawek
name: Wolinska, Justyna
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: climate warming
subject: Daphnia
subject: parasite prevalence
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Climate warming might modify infection outcomes and it has been proposed that temperature increase will result in a “sicker world.” We tested this hypothesis by comparing the prevalence of infection in a common freshwater host–parasite system (crustacean Daphnia infected with the ichthyosporean pathogen Caullerya mesnili) between five artificially heated lakes and four nearby non‐heated control lakes. The heated lakes, which receive warm water from two power plants, have experienced an elevation in water temperature of ca. 3–4°C for the last 60 yr. Analyses of 5 yr of field data revealed that Daphnia communities from heated lakes had lower parasite prevalence than communities from control sites. To disentangle a possible direct detrimental effect of elevated temperature on the parasite from differences in baseline levels of host resistance, we compared infection susceptibility between Daphnia clones isolated from heated and control lakes, under laboratory conditions at two different temperatures. Daphnia from heated lakes were less susceptible to infection than clones from control lakes, while experimental temperature did not affect infection outcome. The data did not confirm the “warmer hence sicker world” scenario. Instead, it seems that indirect effects of temperature elevation (via shifts in lake hydrology) may restrict its spread into heated lakes. Then, local adaptation to the host from control lakes further inhibits re‐establishment of the parasite from control to heated lakes. Our results underline the context‐dependency of the impact of temperature increase on host–parasite interactions.
Apterostigma chocoense Lattke 1997
Creators: name: Mera-Rodríguez, Daniela
name: Serna, Francisco
name: Sosa-Calvo, Jeffrey
name: Lattke, John
name: Rabeling, Christian
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Apterostigma
Apterostigma chocoense

description: (5) Apterostigma chocoense Lattke, 1997 Figure 3A, BMaterial examined. COLOMBIA: Antioquia • 9 workers; Amalfi; 06°51′26″N, 075°07′32″W; alt. 1000 m; 30 Jul. 1997; F. Sernaleg.; MEFLG 40855, 40856, 40857. Identification. Triangular propodeal denticles present; ventral profile of gaster convex anteriorly and concave posteriorly; and ventral profile of gaster in lateral view sinuous (Lattke 1997). Distribution. The present record expands the species known distribution in Colombia from the northwestern Pacific coast to the Andean region (Fig. 1C). Outside of Colombia this species is known in Costa Rica, French Guiana, and Panama (Brandão 1991; Lattke 1997; Fernández and Sendoya 2004).
description: Published as part of Mera-Rodríguez, Daniela, Serna, Francisco, Sosa-Calvo, Jeffrey, Lattke, John & Rabeling, Christian, 2020, A checklist of the non-leaf-cutting fungus-growing ants (Hymenoptera, Formicidae) from Colombia, with new biogeographic records, pp. 1205-1227 in Check List 16 (5) on pages 1208-1209, DOI: 10.15560/16.5.1205, http://zenodo.org/record/4059086
description: {"references": ["Lattke JE (1997) Revision del genero Apterostigma Mayr: (Hymenoptera: Formicidae). Arquivos de Zoologia 34 (5): 121 - 221. https: // doi. org / 10.11606 / issn. 2176 - 7793. v 34 i 5 p 121 - 221", "Brandao CRF (1991) Adendos ao catalogo abreviado das formigas da regiao Neotropical (Hymenoptera: Formicidae). Revista Brasileira de Entomologia 35 (2): 319 - 412. https: // doi. org / 10.5281 / zenodo. 24565", "Fernandez F, Sendoya S (2004) Synonymic list of Neotropical ants (Hymenoptera: Formicidae). Biota Colombiana 5 (1): 3 - 105."]}
Wind erosion in European agricultural landscapes: More than physics
Creators: name: Bartkowski, Bartosz
name: Schepanski, Kerstin
name: Bredenbeck, Simon
name: Müller, Birgit
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: aeolian dust
subject: agriculture
subject: agri‐environmental policy
subject: air pollution
subject: climate change
subject: farmer behaviour
subject: social–ecological systems
subject: soil management
subject: wind erosion
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften

description: Wind erosion from agricultural land is an underrated and understudied environmental challenge in Europe. Its societal and policy relevance will likely increase in the near future due to climate change and associated increases in the frequency, severity and patterns of atmospheric events such as droughts. We review the research on this issue and find it to be fragmented, siloed and dominated by natural sciences, leaving important research gaps. The most important gaps that circumscribe a research agenda for the future include specific effects of future climate change on wind erosion, the relevance of wind erosion for public health and ecosystem functioning, farmers' behaviour affecting erosion risk and feedback between land management and environmental change, and appropriate policy approaches to address wind erosion risks. Social science contributions are thus required to make wind erosion research relevant for addressing the related societally most pressing questions. We provide a social–environmental systems perspective to highlight the potential of inter‐ and transdisciplinary research into wind erosion in times of climate change and the increasingly recognized need to transform agriculture towards more sustainability and climate resilience.
Optimal Algorithm for Linear Problems with Gaussian Measures
Creators: name: Wasilkowski, Grzegorz W.
Publisher: name: Columbia University
Year: 1985
Subjects: Computer science

description: We study optimal algorithms for linear problems in two settings: the average case and the probabilistic case settings. We assume that the probability measure is Gaussian. This assumption enables us to consider a general class of error criteria. We prove that in both settings adaption does not help and a translated spline algorithm is optimal. We also devise optimal information under some additional assumptions concerning the error criterion.
Far-Infrared Properties of Lyman Break Galaxies from Cosmological Simulations
Creators: name: Cen, Renyue
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Utilizing state-of-the-art, adaptive mesh-refinement cosmological hydrodynamic simulations with ultra-high resolution (114h-1pc) and large sample size (>3300 galaxies of stellar mass >10^9Msun), we show how the stellar light of Lyman Break Galaxies at z=2 is distributed between optical/ultra-violet (UV) and far-infrared (FIR) bands. With a single scalar parameter for dust obscuration we can simultaneously reproduce the observed UV luminosity function for the entire range (3-100 Msun/yr) and extant FIR luminosity function at the bright end (>20Msun/yr). We quantify that galaxies more massive or having higher SFR tend to have larger amounts of dust obscuration mostly due to a trend in column density and in a minor part due to a mass (or SFR)-metallicity relation. It is predicted that the FIR luminosity function in the range SFR=1-100Msun/yr is a powerlaw with a slope about -1.7. We further predict that there is a "galaxy desert" at SFR(FIR) < 0.02 (SFR(UV)/10Msun/yr)^2.1 Msun/yr in the SFR(UV)-SFR(FIR) plane. Detailed distributions of SFR(FIR) at a fixed SFR(UV) are presented. Upcoming observations by ALMA should test this model. If confirmed, it validates the predictions of the standard cold dark matter model and has important implications on the intrinsic SFR function of galaxies at high redshift.
description: 12 pages, 4 figures, in press of ApJ Letters
Vulnerabilities and Benefits of Mega-Scale Agri-Food Processing Facilities in Canada
Creators: name: Carlberg, Jared
Publisher: name: The School of Public Policy Publications
Year: 2020

description: This paper explores the vulnerabilities associated with mega-scale agri-food processing facilities in the wake of Canada’s COVID-19 outbreak and associated disruptions to the food supply chain and food security as the result of disease outbreak-induced plant closures. The current system of mega-scale facilities has come about as a result of powerful economic incentives associated with economies of size and scale, which allow larger-scale facilities to spread fixed costs across more units of output, leading to lower per-unit costs, greater levels of profitability, and, in the case of the agri-food sector, lower prices and enhanced food security. Governmental and regulatory policies such as tax incentives for investment in large plants (to bring jobs into communities) and allowing the anti-competitive effects of larger/fewer plants to be a secondary consideration to efficiencies have also contributed to the phenomenon of large plant size. Unfortunately, however, increased plant size also requires more workers which can lead to increased risk of disease spread. Moreover, with fewer and larger plants, if a disease like COVID-19 is detected and a plant idled or shut down as a result, the impact of any individual plant being closed upon the food supply and food security is much greater. Three potential strategic policy options to address this are explored. The first is the introduction of a series of smaller, regional facilities which would greater match commodity availability to processing capacity. For example, Canada’s cattle slaughter capacity does not closely resemble the location of its cattle herd. A second possible option would be the encouragement of alternative ownership structures such as the 1990s-era “New Generation Co-operative” which would be farmer-owned and geographically dispersed. The third (and most likely) option is the introduction of greater levels of mechanization, which would require fewer workers, and increased intra-plant distancing and safety measures for those workers.
description: The School of Public Policy Publications, Vol. 13 (2020)
Measurements of DNS Stability
Creators: name: Boyaci, Omer
name: Schulzrinne, Henning G.
Publisher: name: Columbia University
Year: 2006
Subjects: Computer science

description: In this project, we measured the stability of DNS servers based on the most popular 500 domains. In the first part of the project, DNS server replica counts and maximum DNS server separation are found for each domain. In the second part, these domains are queried for a one-month period in order to find their uptime percentages.
Fiscal cadastral systems reform: a case study of the general valuation project 2000 in the city of Cape Town
Creators: name: Whittal, Jennifer
Publisher: name: University of Calgary
Year: 2008

description: Bibliography: p. 429-454
description: some pages are in colour
description: In 2000, the City of Cape Town generated market values of approximately 550 000 residential properties in Metropolitan Cape Town, employing Computer Assisted Mass Appraisal (CAMA). These valuations form the basis for local government property taxation. A high level of risk and, hence, uncertainty, dominated the landscape of complex change, such as that undertaken in Cape Town’s General Valuation Project 2000 (GV2000 Project). To guide policy and practice in complex situations, current research in the area of fiscal cadastral reform focuses on formulating an appropriate framework for reform, with CAMA as a primary element. This research identifies a suitable theoretical and methodological framework for fiscal cadastral systems reform. This framework is informed by theory which is tested in application on the case study of the GV2000 Project and thereafter inductively extended. The main contributions of the research are in the exploration of an appropriate philosophical paradigm for fiscal cadastral systems research, the application of social systems theory in the consideration of the processes of property valuation and taxation as sub-systems of a fiscal cadastral system, which in itself is part of a larger whole (the cadastral system), and in the development of a methodological framework for fiscal cadastral systems reform. The findings of this research are that critical realism is a suitable theoretical basis for research in fiscal cadastral systems, that a social systems approach facilitates a holistic investigating including both the natural and social aspects of the system, that a pluralist multimethodological approach accommodates both positivist and interpretivist approaches and facilitates the identification of a suite of suitable and complementary tools for research and analysis of cases of fiscal cadastral systems reform. A further research outcome is the inductive extension of what are understood to be “best practices” in property valuation and taxation to an integrated, social systems, strategic framework for reform of fiscal cadastral systems.
Tavis-Cummings model beyond the rotating wave approximation: Quasi-degenerate qubits
Creators: name: Agarwal, S.
name: Rafsanjani, S. M. Hashemi
name: Eberly, J. H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Tavis-Cummings model for more than one qubit interacting with a common oscillator mode is extended beyond the rotating wave approximation (RWA). We explore the parameter regime in which the frequencies of the qubits are much smaller than the oscillator frequency and the coupling strength is allowed to be ultra-strong. The application of the adiabatic approximation, introduced by Irish, et al. (Phys. Rev. B \textbf{72}, 195410 (2005)), for a single qubit system is extended to the multi-qubit case. For a two-qubit system, we identify three-state manifolds of close-lying dressed energy levels and obtain results for the dynamics of intra-manifold transitions that are incompatible with results from the familiar regime of the RWA. We exhibit features of two-qubit dynamics that are different from the single qubit case, including calculations of qubit-qubit entanglement. Both number state and coherent state preparations are considered, and we derive analytical formulas that simplify the interpretation of numerical calculations. Expressions for individual collapse and revival signals of both population and entanglement are derived.
description: 12 Pages, 8 Figures. Comparison to the rotating wave approximation added
Apterostigma collare Emery 1896
Creators: name: Mera-Rodríguez, Daniela
name: Serna, Francisco
name: Sosa-Calvo, Jeffrey
name: Lattke, John
name: Rabeling, Christian
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Apterostigma
Apterostigma collare

description: (6) Apterostigma collare Emery, 1896 Figure 3C, DMaterial examined. COLOMBIA: Chocó • 1 worker; Lloró; 05°29′00″N, 076°32′00″W; alt. 115 m; 15 Mar. 2002; Y. Palacios, O. Mena leg.; UNAB 4739. Identification. Frontal lobes in frontal view subquad- rate, with lateroventral margin curved posteriorly; ante- rior clypeal margin with a median angle; gaster in lateral view subspherical, with inconspicuous lateral carina; and body lacking erect hairs (Lattke 1997). Distribution. Previous Colombian records are from the departments of Cauca, Valle del Cauca, and Magda- lena. This new record from Chocó indicates the species might be widely distributed across the Pacific and north- ern coasts of the country (Fig. 1A). Apterostigma collare is known from several countries in Central America: Costa Rica, Honduras, Mexico (Veracruz), Nicaragua, and Panama. In South America it has been found only in Colombia and Venezuela (Lattke 1997).
description: Published as part of Mera-Rodríguez, Daniela, Serna, Francisco, Sosa-Calvo, Jeffrey, Lattke, John & Rabeling, Christian, 2020, A checklist of the non-leaf-cutting fungus-growing ants (Hymenoptera, Formicidae) from Colombia, with new biogeographic records, pp. 1205-1227 in Check List 16 (5) on pages 1210-1211, DOI: 10.15560/16.5.1205, http://zenodo.org/record/4059086
description: {"references": ["Lattke JE (1997) Revision del genero Apterostigma Mayr: (Hymenoptera: Formicidae). Arquivos de Zoologia 34 (5): 121 - 221. https: // doi. org / 10.11606 / issn. 2176 - 7793. v 34 i 5 p 121 - 221"]}
Is pain associated with subsequent job loss? A panel study for Germany
Creators: name: Piper, Alan
name: Blanchflower, David G.
name: Bryson, Alex
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: pain
subject: unemployment
subject: panel study
subject: 300 Sozialwissenschaften::330 Wirtschaft::330 Wirtschaft

description: The cross‐sectional association between pain and unemployment is well‐established. But the absence of panel data containing information on pain and labor market status has meant that less is known about the direction of any causal linkage. Those longitudinal studies that do examine the link between pain and subsequent labor market transitions suggest results are sensitive to the measurement of pain and model specification. We contribute to this literature using large‐scale panel data from the German Socio‐Economic Panel (GSOEP) for the period 2002 to 2018. We show that workers suffering pain are more likely than others to leave their job for unemployment or economic inactivity. This probability rises with the frequency of the pain suffered in the previous month. The effect persists having accounted for fixed unobserved differences across workers, is apparent among those who otherwise report good general health and is robust to the inclusion of controls for mental health, life satisfaction and the employee's occupation.
Partial wave analysis at BES III harnessing the power of GPUs
Creators: name: Berger, Niklaus
Publisher: name: arXiv
Year: 2011
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Graphics (cs.GR)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Partial wave analysis is a core tool in hadron spectroscopy. With the high statistics data available at facilities such as the Beijing Spectrometer III, this procedure becomes computationally very expensive. We have successfully implemented a framework for performing partial wave analysis on graphics processors. We discuss the implementation, the parallel computing frameworks employed and the performance achieved, with a focus on the recent transition to the OpenCL framework.
description: 6 pages, 2 figures, prepared for the proceedings of Computing in High Energy Physics (CHEP) 2010
ปัจจัยที่ส่งผลต่อความสามารถในการส่งออกของธุรกิจสมุนไพรในจังหวัดพิษณุโลก
Creators: name: สุจินดา เจียมศรีพงษ์
Publisher: name: คณะบริหารธุรกิจ เศรษฐศาสตร์และการสื่อสาร มหาวิทยาลัยนเรศวร
Year: 2560
Subjects: ธุรกิจ SME
ผลิตภัณฑ์สมุนไพร
ความสามารถในการส่งออก
จังหวัดพิษณุโลก
SMEs Business
Thai herbal products
Export Capability
Phitsanulok province

description: วารสารบริหารธุรกิจ เศรษฐศาสตร์และการสื่อสาร, 12, 2, 161-175
Throughput and Fairness in CSMA/CA Wireless Networks
Creators: name: Chang, Hoon
name: Misra, Vishal
name: Rubenstein, Daniel Stuart
Publisher: name: Columbia University
Year: 2006
Subjects: Computer science

description: While physical layer capture has been observed in real implementations of wireless devices accessing the channel like 802.11, log-utility fair allocation algorithms based on accurate channel models describing the phenomenon have not been developed. In this paper, using a general physical channel model, we develop an allocation algorithm for log-utility fairness. To maximize the aggregate utility, our algorithm determines channel access attempt probabilities of nodes using partial derivatives of the utility. Our algorithm is verified through extended simulations. The results indicate that our algorithm could quickly achieve allocations close to the optimum with 8.6% accuracy error on average.
An ontology-based system for chronic tropical diseases using the Prot?g?-OWL tool
Creators: name: Segun Olatinwo
name: Emuoyibofarhe, Justice
name: Alamu, Femi
name: Olusegun Omitola
name: Damilola Olatinwo
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2018
Subjects: ontology
formal concept analysis
METHONTOLOGY
precision
recall and F-measure

description: Songklanakarin Journal of Science and Technology, 40, 6, 1386-1395
The non-native modern language teacher : language practices, choices, and challenges
Creators: name: Lecki, Sabina E.
Publisher: name: University of British Columbia
Year: 2011

description: Previous research exploring the issues and challenges facing non-native language teachers has predominantly studied teachers of English. However, due to the status of French as an official language and waves of European and Asian immigration within the Lower Mainland of British Columbia there are many other modern languages of interest and relevance being taught besides English. The question then arises: What are the issues and challenges facing non-native teachers of languages other than English, and what is their unique contribution to modern language teaching? Do the findings and theories developed from previous research conducted mainly in English language teaching contexts, particularly with respect to language use practises, choices, and challenges, apply to other language teaching contexts? In this qualitative study of 22 non-native modern language teachers, participants teaching various Asian and European languages were interviewed with the subsequent interview and questionnaire data subjected to a cross-case analysis. Four participants were selected as focal cases for greater in-depth analysis. Participants’ perspectives on the ‘native speaker’ construct were also explored in relation to their non-native status. It was found that most participants were challenged in their attempts to maintain and improve their target language proficiency. Many teachers viewed their bilingual or multilingual identity as a strength, though this was sometimes in conflict with the views of stakeholders. Much of the previous research concerning language use, barriers faced by nonnative teachers, and reflections on the term ‘native speaker’ was confirmed by this study. In terms of the principal theme of L1-L2 use, this study further valorised teachers’ selective and strategic use of the L1, particularly in late-entry programs, while continuing to focus on maximising L2 use. Extensive individual and contextual factors also had an impact on participants’ language use though the use of L1-L2 boundaries or zones was a useful strategy. Findings have implications for the hiring, training, and professional development of language teachers. Although some of the experiences of non-native teachers of Asian languages were similar to those of their counterparts in other languages, these teachers faced some particularly unique challenges which present avenues for future research.
Paratrachymyrmex irmgardae Forel 1912
Creators: name: Mera-Rodríguez, Daniela
name: Serna, Francisco
name: Sosa-Calvo, Jeffrey
name: Lattke, John
name: Rabeling, Christian
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Hexapoda
Hymenoptera
Formicidae
Paratrachymyrmex
Paratrachymyrmex irmgardae

description: (40) Paratrachymyrmex irmgardae (Forel, 1912) Fig. 10C, DMaterial examined. COLOMBIA: Cesar • 1 worker; Valledupar; 10°23′17″N, 073°14′11″W; alt. 250– 150 m; Jan. 2011; Y. Dominguez leg.; UNAB 765. Identification. Cephalic denticle absent; mandibles stri- ate but with no more than 12 striae between the lateral border and the basal teeth; and gaster with vestigial or no hair-tubercles (unpublished key by Kempf). Distribution.Paratrachymyrmex irmgardae is only known from Colombia (Fig. 1D) (Kempf 1972).
description: Published as part of Mera-Rodríguez, Daniela, Serna, Francisco, Sosa-Calvo, Jeffrey, Lattke, John & Rabeling, Christian, 2020, A checklist of the non-leaf-cutting fungus-growing ants (Hymenoptera, Formicidae) from Colombia, with new biogeographic records, pp. 1205-1227 in Check List 16 (5) on page 1223, DOI: 10.15560/16.5.1205, http://zenodo.org/record/4059086
description: {"references": ["Forel A (1912) Formicides neotropiques. Part I. Annales de la Societe Entomologique de Belgique 56: 28 - 49.", "Kempf WW (1972) Catalogo abreviado das formigas da regiao neotro- pical (Hymenoptera: Formicidae). Studia Entomologica 15: 1 - 344."]}
Privacy-Preserving Payload-Based Correlation for Accurate Malicious Traffic Detection
Creators: name: Parekh, Janak J.
name: Wang, Ke
name: Stolfo, Salvatore
Publisher: name: Columbia University
Year: 2006
Subjects: Computer science

description: With the increased use of botnets and other techniques to obfuscate attackers' command-and-control centers, Distributed Intrusion Detection Systems (DIDS) that focus on attack source IP addresses or other header information can only portray a limited view of distributed scans and attacks. Packet payload sharing techniques hold far more promise, as they can convey exploit vectors and/or malcode used upon successful exploit of a target system, irrespective of obfuscated source addresses. However, payload sharing has had minimal success due to regulatory or business-based privacy concerns of transmitting raw or even sanitized payloads. The currently accepted form of content exchange has been limited to the exchange of known-suspicious content, e.g., packets captured by honeypots; however, signature generation assumes that each site receives enough traffic in order to correlate a meaningful set of payloads from which common content can be derived, and places fundamental and computationally stressful requirements on signature generators that may miss particularly stealthy or carefully-crafted polymorphic malcode. Instead, we propose a new approach to enable the sharing of suspicious payloads via privacy-preserving technologies. We detail the work we have done with two example payload anomaly detectors, PAYL and Anagram, to support generalized payload correlation and signature generation without releasing identifiable payload data and without relying on single-site signature generation. We present preliminary results of our approaches and suggest how such deployments may practically be used for not only cross-site, but also cross-domain alert sharing and its implications for profiling threats.
Beauty: What Makes Us Dream, What Haunts Us
Creators: name: Liebelt, Claudia
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: beauty work
subject: body images
subject: cosmetic surgery
subject: femininity
subject: feminist critique of beauty
subject: Turkey
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::301 Soziologie, Anthropologie

description: In recent years, feminist anthropologists have contributed to an interdisciplinary debate on beauty, which focuses on gendered desires, affectivity, and projects of self‐making amid a global boom in beauty products and services. Drawing on the emergent field of critical beauty studies and ethnographic research on middle‐class femininity in urban Turkey, this article explores the salience and potential of beauty as a feminist keyword in anthropology. It argues that despite men's increasing investments in beauty, beauty continues to be tied to “women” in existential ways. Moreover, while beauty still means work for women, this work is often outsourced to female migrant or racialized workers. Beauty norms and body images materialize in intimate encounters and particular settings. In Turkey, the recent extension of the urban beauty economy has created spaces of possibility and aesthetic desires for ordinary women to “take care of themselves.” With its neoliberal emphasis on self‐care, the urban beauty economy has fueled the emergence of new female subjectivities and affective desires. Finally, the article argues in favor of a relational feminist ethnography and pedagogy of beauty, which is conscious of what we define as beautiful, desirable, harmful, or healthy and what the implications are of doing so.
Improving the accessibility to Leeds Bradford International Airport
Creators: name: Nurdin, Ahmad
name: Sigit Priyanto
name: Narasimha Chandra Balijepalli
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2018
Subjects: accessibility
airport
user benefits

description: Songklanakarin Journal of Science and Technology, 40, 6, 1396-1404