cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Skipped spawning is common for the Northeast Arctic cod in a life-history energy allocation model
Creators: name: Jørgensen, Christian
name: Ernande, Bruno
name: Fiksen, Øyvind
name: Dieckmann, Ulf
Publisher: name: ASC 2004 - K - Theme session
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author.That iteroparous fish reproduce every year after they have become sexually mature is a common assumption in fisheries science. Experimental and field studies suggest, however, that mature fish commonly skip spawning, often but not only in relation with failing food resources. This study presents a life-history model based on optimal energy allocation for the Northeast Arctic cod. Ingested energy can either be allocated to growth or to storage for the next spawning period. This trade-off embodies lifelong patterns of growth, maturation, and reproduction. The allocation decision was optimised based on five individual states: age, length, size of energy stores, month of the year, and the current food availability. The model showed that skipped spawning was partly related to periods of low food intake (there was not sufficient energy to spawn), but that it also played a central role in life-history: spawning should be omitted because of the benefits that come from growth to a larger size. Skipped spawning was most common in the years just following maturation. The influence of several parameters was tested, and skipped spawning was more common when: 1) juvenile mortality was high; 2) mortality at the spawning grounds was low; 3) the energetic cost of migration was high; and 4) food intake was low.
title: МАТЕМАТИЧЕСКАЯ МОДЕЛЬ УПРАВЛЕНИЯ ПРЕДЛОЖЕНИЕМ И СПРОСОМ
title: Статья
titleType: Subtitle
Creators: name: Братищев, А.В.
name: Батищева, Г.А.
name: Журавлева, М.А.
name: Гузенко, Н.В.
Publisher: name: "Южный Университет (ИУБиП)"
Year: 2020
Subjects: ДИНАМИЧЕСКАЯ СИСТЕМА
СОСТОЯНИЕ РАВНОВЕСИЯ
БИФУРКАЦИОННЫЙ АНАЛИЗ
ФАЗОВЫЙ ПОРТРЕТ
СИНЕРГЕТИЧЕСКИЙ РЕГУЛЯТОР

Abstract
title: Dramatic changes in spawning stock age-structure of Barents Sea cod
Creators: name: Ottersen, Geir
name: Hjermann, Dag Ø.
name: Stenseth, Nils Chr.
Publisher: name: ASC 2004 - K - Theme session
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author.Atlantic Cod (Gadus morhua) is one of the commercially most important fish species in the North Atlantic and plays a central role in several ecosystems. Fishing pressure has been heavy over a prolonged period and the recent decades have shown dramatic decline in abundance of many stocks. The Arcto-norwegian (northeast Arctic) cod stock in the Barents Sea is now the largest. We show that the age composition of the spawning stock has changed distinctly during the last 60 years, the average age of spawners has decreased from between 10 and 11 in the late 1940s to 7-8 now. Although less clear, there is also a tendency towards reduced age diversity in the spawning stock, fewer age classes now contributing. The trend towards a younger, less diverse spawning stock is worrying, in particular since earlier work by other authors has thoroughly documented that older Barents Sea cod produce disproportionately more and higher quality eggs than first-time spawners. There is evidence for fluctuations in climate, particularly sea temperature, being a main cause for the pronounced recruitment variability of this stock, higher temperatures being favourable for survival throughout the critical early life stages. We document, through studies of time series, that the climate-cod recruitment link has strengthened during the last decades. Our results suggest that this is a result of cod now being less resilient to adverse climate conditions due to the reduction in spawning stock age and age diversity.
Galaxy Rotation Parameters from OB2 Stars with Proper Motions and Parallaxes from the Gaia EDR3 Catalog
Creators: name: Bobylev, V. V.
name: Bajkova, A. T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have analyzed the kinematics of OB2 stars with proper motions and parallaxes selected by Xu et al. from the Gaia EDR3 catalog. The relative parallax errors for all the stars in this sample do not exceed 10\%. Based on a sample of 9750 stars, the group velocity components $(U,V,W)_\odot=(7.21,7.46,8.52)\pm(0.13,0.20,0.10)$~km/s were obtained and the parameters of the angular velocity of rotation of the Galaxy: $Ω_0 =29.712\pm0.062$~km/s/kpc, $Ω^{'}_0=-4.014\pm0.018$~km/s/kpc$^{2}$ and $Ω^{''}_0=0.674\pm0.009$~km/s/kpc$^{3}$. The circular velocity of rotation of the solar neighborhood around the center of the Galaxy is $V_0=240.7\pm3.0$~km/s for the assumed distance of the Sun to the galactic center $R_0=8.1\pm0.1$~kpc. It is shown that the influence of the systematic correction to the trigonometric parallaxes of the Gaia EDR3 catalog with the value $Δπ=-0.040$~mas does not exceed the $\sim1σ$ level of the errors of the sought-for kinematic parameters of the model. Based on the proper motions of OB stars, the following variances of the residual velocities were found: $(σ_1,σ_2,σ_3)=(11.79,9.66,7.21)\pm(0.06,0.05,0.04)$~km/s. It is shown that the first axis of this ellipsoid slightly deviates from the direction to the center of the Galaxy $L_1=12.4\pm0.1^\circ$, and the third axis is oriented almost exactly to the north pole of the Galaxy, $B_3=87.7\pm0.1^\circ.$
description: 12 page, 2 figures, 2 tables
Offline-Online Learning of Deformation Model for Cable Manipulation with Graph Neural Networks
Creators: name: Wang, Changhao
name: Zhang, Yuyou
name: Zhang, Xiang
name: Wu, Zheng
name: Zhu, Xinghao
name: Jin, Shiyu
name: Tang, Te
name: Tomizuka, Masayoshi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Manipulating deformable linear objects by robots has a wide range of applications, e.g., manufacturing and medical surgery. To complete such tasks, an accurate dynamics model for predicting the deformation is critical for robust control. In this work, we deal with this challenge by proposing a hybrid offline-online method to learn the dynamics of cables in a robust and data-efficient manner. In the offline phase, we adopt Graph Neural Network (GNN) to learn the deformation dynamics purely from the simulation data. Then a linear residual model is learned in real-time to bridge the sim-to-real gap. The learned model is then utilized as the dynamics constraint of a trust region based Model Predictive Controller (MPC) to calculate the optimal robot movements. The online learning and MPC run in a closed-loop manner to robustly accomplish the task. Finally, comparative results with existing methods are provided to quantitatively show the effectiveness and robustness.
title: Spatial migration pattern of deep-sea redfish (Sebastes mentella Travin) of the Norwegian-Barents population from survey data
Creators: name: Drevetnyak, Konstantin
name: Nedreaas, Kjell H.
name: Kluev, Anton
Publisher: name: ASC 2004 - K - Theme session
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author.Study of redfish migration by traditional tagging-methods faces great difficulties. The redfish taken onboard a vessel usually prove to be nonviable. A sharp hydrostatic pressure differential is lethal for the redfish having a closed swim bladder. The main purpose of the present paper is to determine migration pattern of the deep-sea redfish juveniles. To study the deep-sea redfish migration, data from annual Russian and Norwegian scientific trawl surveys conducted during autumn and winter of 1982-1995 were used. The Petersen method was applied to analyse size composition of the deep-sea redfish catches taken during the above trawl surveys. The conclusion made from prior researches that the deepsea redfish year classes of 1982 and 1988 were strong compared to their neighboring ones was confirmed. On the assumption that 'peaks' in the length distributions of survey catches displayed strong yearclasses, the annual corresponding lengths were defined for the 1982 and 1988 year classes of deep-sea redfish at different age (from 0 to 7 years). Subsequently, using the database from trawl surveys and knowing the length of the deep-sea redfish from strong yearclasses at different age, the distribution of these yearclasses by year was mapped. Based on the analysis of these maps, migration patterns of the deep-sea redfish juveniles in the Barents and Norwegian Seas were plotted.
On the discovery of K I 7699 A line strength variation during the 1982 - 1984 eclipse of Epsilon Aurigae
Creators: name: Parthasarathy, Mudumba
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The discovery of K I 7699Å line strength variations during the 1982-1984 eclipse of ε Aurigae is described. The equivalent widths and radial velocities of the K I 7699Å line derived from spectra obtained during 1981 November to 1983 July with the 2.1-meter Otto Struve reflector telescope of the McDonald observatory are presented.
Playing with Identities: Queering Digital Narratology and the Exploration of Gender and Sexual Identities
Creators: name: Fung, Calvin
Publisher: name: Monash University
Year: 2017
Subjects: subject: 200599 Literary Studies not elsewhere classified
subject: FOS: Languages and literature
subject: 200525 Literary Theory
subject: 200205 Culture, Gender, Sexuality
subject: FOS: Other humanities
subject: Gender studies
subject: Digital Humanities
subject: 200102 Communication Technology and Digital Media Studies
subject: FOS: Media and communications

description: This study builds upon previous research that discusses gender and sexual identities and digital narratives by introducing a queer narratological approach to character creation mechanics. First, Lisa Nakamura’s identity tourism and narratological constructs are applied to formalize the concept of the exploration in digital narratives. Second, exploration of gender and sexual identities is demonstrated through a queer narratological analysis of two digital narratives, Always Sometimes Monsters (2014) and Hustle Cat (2016). Third, the development of character creation mechanics in The Sims (2000-2016) series is examined to reflect the advancement toward progressive game designs. Concerns regarding a sexuality blind approach and the downplaying of homophobia are addressed, and Helene Cixous’s poststructuralist "other bisexuality" as a transgressive product of the fluidity of identities in digital narratives is emphasized. This study elaborates the often-disregarded workings of queer narratology and theory in digital narratives or game designs.
Achromatic Metalens in the Visible and Metalens with Reverse Chromatic Dispersion
Creators: name: Khorasaninejad, M.
name: Shi, Z.
name: Zhu, A. Y.
name: Chen, W. T.
name: Sanjeev, V.
name: Zaidi, A.
name: Capasso, F.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this letter, we experimentally report an achromatic metalens (AML) operating over a continuous bandwidth in the visible. This is accomplished via dispersion engineering of dielectric phase shifters: titanium dioxide nanopillars tiled on a dielectric spacer layer above a metallic mirror. The AML works in reflection mode with a focal length independent of wavelength from wavelength of 490 nm to 550 nm. We also design a metalens with reverse chromatic dispersion, where the focal length increases as the wavelength increases, contrary to conventional diffractive lenses. The ability to engineer the chromatic dispersion of metalenses at will enables a wide variety of applications that were not previously possible. In particular, for the AML design, we envision applications such as imaging under LED illumination, fluorescence, and photoluminescence spectroscopy.
title: Exploitation as a driving force of life history evolution: methods and empirical analyses
Creators: name: Heino, Mikko
name: Dieckmann, Ulf
Publisher: name: ASC 2004 - K - Theme session
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author.Today, fishing is the dominant source of mortality in most commercially exploited fish stocks. Life-history theory predicts that, under most circumstances, increased mortality at potential ages and sizes at maturation selects for earlier maturation. In-deed, commercially exploited fish stocks often show trends towards earlier matura-tion. However, another plausible explanation exists: earlier maturation may simply reflect phenotypic plasticity. Because of this ambiguity in disentangling the plastic and evolutionary components of life history changes, understanding the nature of phenotypic changes in exploited fish populations has been difficult so far. A recently developed new method for estimating probabilistic reaction norms for age and size at maturation is now helping to overcome this problem, and, in most of the cases analysed so far, is suggesting that evolutionary components contribute to the ob-served trends in age and size at maturation. In this paper we give an overview of the probabilistic reaction norm method and describe the resulting progress with empiri-cal case studies.
title: Estimation of sea scallop abundance using a video survey in offshore USA waters
Creators: name: Stokesbury, Kevin D. E.
name: Harris, Bradley P.
name: Marino, Michael C.
name: Nogueira, Jacob I.
Publisher: name: ASC 2004 - K - Theme session
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author.From 1999 to 2004 SMAST completed 23 video surveys on Georges Bank to provide spatially explicit, absolute estimates of sea scallop density and size distributions in closed areas. Further, these surveys provide information on the sediment and marine benthic habitat associated with the sea scallop fishing grounds. Sea scallop densities have increased in the three closed areas of Georges Bank. These video surveys were expanded to include the sea scallop density and size distributions along the off-shore northeast waters of the United States in 2003. Sea scallop densities in the Mid-Atlantic (26,270 km2) and Georges Bank (28,523 km2) ranged from 0.04 to 0.79 and 0.09 to 0.26 scallop•m-2, respectively, and represented approximately 217,520 mt tons of scallop meats (approximately US$2.4 billion). On Georges Bank 82% of the sea scallop biomass was located within the three closed areas, while 36% of the scallop resource in the mid-Atlantic was within the closed areas. In the Georges Bank closed areas the proportion of sea scallop pre-recruits (<90 mm shell height) was low and sufficient to replace the adult population at an instantaneous mortality rate of 0.10 but not at a higher rate. A large number of pre-recruit scallops were observed in the southern portion of the Hudson Canyon closed area extending south into open waters. Sea stars outnumbered sea scallops (approximately 39 to 16 billion, respectively) although most were small (20 to 40 mm arm length). Sea stars may be responsible for sea scallop mortality in the southern portion of Closed Area II. The video survey technique has several advantages over dredge surveys; it is fast, accurate, precise, and provides information on the biology of scallops and the associated habitat without disturbing the sea floor.
Nutritional Management of the Dairy Heifer to Maximize Growth and Productivity
Creators: name: Corbett, Robert B.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 2010

description: The dairy replacement heifer has historically been considered to be only a cost to the dairy operation and not a potential profit center. Dairy heifers have a tremendous genetic capability to utilize nutrients in their diet to maximize growth and reach puberty at a much earlier age than previously thought. If heifers are provided with sufficient amounts of protein and energy in the right ratios, they can reach puberty and breeding height and weight by 11 months of age without adverse affects on ease of calving, reproductive efficiency or milk production. Heifers on this higher plane of nutrition also have a lower incidence of morbidity and mortality, thus increasing the number of heifers available as replacements on the dairy. This allows the dairy to expand internally without the purchase of outside animals for replacements, as well as increase the rate of voluntary culling.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 2010
title: Shell growth of Sea Scallops, Placopecten magellanicus, in the southern and northern Great South Channel, USA
Creators: name: Harris, Bradley P.
name: Stokesbury, Kevin D. E.
Publisher: name: ASC 2004 - K - Theme session
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author.The introduction of marine protected areas and a proposed area-rotation management strategy shift the commercial harvest of sea scallops, Placopecten magellanicus, on Georges Bank, USA, from a stock-wide to an area-specific fishery. To determine the spatial variation of sea scallop shell growth two tagging studies were conducted in two commercially productive areas of the western Georges Bank in the Great South Channel, separated by 74 km. Sea scallops grew faster and reached larger sizes in the southern study area based on mean instantaneous growth rates and Munro’s index of growth performance derived from von Bertalanffy growth function parameters. Sea scallop shell growth rates varied spatially and were likely influenced by environmental factors (e.g. flow velocity), fishing pressure, and sea scallop density, on a fine geographic scale (km). Therefore, using a single stock-wide growth estimate may result in over or under estimates of area-specific growth. Further, the duration and intensity of fishery access to a rotational area or marine protected area may influence shell growth rates.
Contract Rearing Programs for Replacement Dairy Heifers
Creators: name: Gardner, Don
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 2010

description: The demand for contract heifer-rearing business is growing because environmental, land, capital, and labor requirements on producing dairy farmers is increasing, especially among larger farms. Specialized growers that offer cost competitive services that return a quality heifer are in demand. Growers that provide good facilities and management can prevent common heifer diseases and provide consistent gains so heifers will calve at 24 months or less. Good accounting and record systems allow for the goals of the grower and dairy to be monitored and achieved.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 2010
Recent results from D0 and recent Tevatron combinations
Creators: name: Tuchming, Boris
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss recent results obtained by the D0 experiment at the Fermilab Tevatron $p\bar p$ collider and recent combinations of CDF and D0 measurements. Regarding the top quark mass, we present recent measurements obtained at D0, the final Run~I+Run~II D0 combination, as well as the preliminary Run~I+Run~II CDF+D0 combination. We also discuss the combination of the CDF+D0 measurements of the $p\bar p \to t\bar t$ forward-backward asymmetry. We present the first measurement of the direct CP-violating charge asymmetry in $B^\pm$ mesons decaying to $μ^\pm D^{0} X$, and discuss the status of the recent evidence for a four-flavor tetraquark state seen at D0.
description: 8 pages, 4 figures, Proceedings of the XXXI Rencontres de Physique de La Vall\'ee d'Aoste, 5 - 11 Mar 2017, La Thuile, Italia
Clinical Mastitis
Creators: name: Roberson, Jerry R.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 2010

description: Clinical mastitis represents one of the most common reasons for antibiotic usage on a dairy farm, especially if a dairy uses a blanket mastitis treatment program. With a blanket mastitis treatment program, many cows are treated unnecessarily or treated with an ineffective antibiotic. The first eight days represent a time period in which, if the antibiotic is effective, a bacterial cure due to an antibiotic should take place. Daily culturing of the clinical mastitis case and the use non-treated controls (for research) is really the only way to determine the effect of an antibiotic, as self-cures can occur with any organism. In this study, cows that developed naturally occurring clinical mastitis were treated with various antibiotics and methods and had the following monitored for the first eight days, then once a week until completely cured, culled, or dead: temperature, pulse, respiration, hydration status, rumen status, secretion color, udder firmness, somatic cell count (SCC), culture, and colony forming units (cfu). Conclusions: It is usually safe to wait for culture results (one to two days) before determining if antibiotic treatment is necessary for cows with mild to moderate clinical mastitis. The majority of clinical mastitis cases are mild to moderate. About 25% of clinical mastitis cases are no-growth and require no treatment. Mild cases of Escherichia coli do not require antibiotic treatment. Intramammary antibiotics are warranted for streptococcal clinical mastitis. First lactation cows with Staphylococcus aureus mastitis should be treated with an intramammary antibiotic. While these results and conclusions are based on findings from a single dairy, utilizing culture-based therapy and following up with daily culturing on clinical mastitis cases will help any dairy to develop the most prudent and justified mastitis treatment plan. It will also result in savings through decreased milk loss due to improper treatment, milk discard due to drug withholding periods, and drug costs.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 2010
Working with Small Ruminant Shows and Sales
Creators: name: Rowe, Joan Dean
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 2010

description: Veterinarians can be a valuable resource to youth and livestock producers in presenting healthy, attractive sheep and goats for public display or sale by working with fairs and sales to exclude sheep and goats with contagious diseases and zoonoses, unsightly conditions, and animals otherwise unsuitable for public display. Complete and accurate certificates of veterinary inspection and compliant scrapie identification, consistent pre-show or sale health examinations, and review and assessment of rules and policies to best serve the owners, management, and public are key ways veterinarians can contribute to shows and sales. Exhibition sheep and goats must always be considered food-producing animals rather than companion animals when making medical decisions regarding drug use and medical outcomes. Working directly with youth and the organizing committees to assure safe housing and rules which inform exhibitors and provide a framework for fair and equitable rules of enforcement are key to assuring the satisfaction of livestock exhibitors, show or sale management, and the consumer public.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 2010
Fast Algorithms for Designing Multiple Unimodular Waveforms With Good Correlation Properties
Creators: name: Li, Yongzhe
name: Vorobyov, Sergiy A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we develop new fast and efficient algorithms for designing single/multiple unimodular waveforms/codes with good auto- and cross-correlation or weighted correlation properties, which are highly desired in radar and communication systems. The waveform design is based on the minimization of the integrated sidelobe level (ISL) and weighted ISL (WISL) of waveforms. As the corresponding optimization problems can quickly grow to large scale with increasing the code length and number of waveforms, the main issue turns to be the development of fast large-scale optimization techniques. The difficulty is also that the corresponding optimization problems are non-convex, but the required accuracy is high. Therefore, we formulate the ISL and WISL minimization problems as non-convex quartic optimization problems in frequency domain, and then simplify them into quadratic problems by utilizing the majorization-minimization technique, which is one of the basic techniques for addressing large-scale and/or non-convex optimization problems. While designing our fast algorithms, we find out and use inherent algebraic structures in the objective functions to rewrite them into quartic forms, and in the case of WISL minimization, to derive additionally an alternative quartic form which allows to apply the quartic-quadratic transformation. Our algorithms are applicable to large-scale unimodular waveform design problems as they are proved to have lower or comparable computational burden (analyzed theoretically) and faster convergence speed (confirmed by comprehensive simulations) than the state-of-the-art algorithms. In addition, the waveforms designed by our algorithms demonstrate better correlation properties compared to their counterparts.
description: 30 pages, 3 figures
title: Eastern English Channel Fish Community from 1988 to 2003 and its Relation to the Environment
Creators: name: Vaz, S.
name: Carpentier, A.
name: Coppin, F.
Publisher: name: ASC 2004 - K - Theme session
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author.In the Eastern English Channel, an important area for small fisheries with strong hydrodynamic features, IFREMER (French Research Institute for Exploitation of the Sea) carries out since 1988 an essential ground fish survey enabling ICES to produce annual evaluations of major commercial fish stocks. It is therefore possible to identify and describe the existing communities and to analyse their distribution patterns in disturbed areas supporting important fishery exploitation. During this autumn survey, biological data are collected on all demersal, benthic and pelagic species captured and environmental conditions are also recorded. It was therefore possible to identify and describe the existing communities observed from 1988 to 2003 in the Eastern Channel and to relate them with physical and hydrological features. Multivariate (canonical analyses) and spatial analyses (geostatistical analyses) were used to explore and illustrate the community composition, diversity and spatial structure based on 90 observed species and 1326 haul trawls and revealed their relationships with the environment and their evolution through time. Four sub-communities could be identified with varying diversity levels. The sampling depth, salinity, temperature and the sediment nature were all significantly correlated to the community structure. The study also revealed significant inter-annual community variations but no clear shift in its composition could be distinguished over time with the exception of a few species in particular Striped red mullet (Mullus surmuletus). This species exhibited a significant abundance increase since the late 1990’s and this result may confirm recent fishery observations relating marked increases in this species catch. The diversity levels of the community seemed to have increased over the last decade and to be favoured in area with soft sediment type with important temperature and salinity variations, typically, coastal river plumes and estuaries.
Epitaxial Growth and Band Structure of Te Film on Graphene
Creators: name: Huang, Xiaochun
name: Guan, Jiaqi
name: Liu, Bing
name: Xing, Shuya
name: Wang, Weihua
name: Guo, Jiandong
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Tellurium (Te) films with monolayer and few-layer thickness are obtained by molecular beam epitaxy on a graphene/6H-SiC(0001) substrate and investigated by in situ scanning tunneling microscopy and spectroscopy (STM/STS). We reveal that the Te films are composed of parallel-arranged helical Te chains flat-lying on the graphene surface, exposing the (1x1) facet of (10-10) of the bulk crystal. The band gap of Te films increases monotonically with decreasing thickness, reaching ~0.92 eV for the monolayer Te. An explicit band bending at the edge between the monolayer Te and graphene substrate is visualized. With the thickness controlled in atomic scale, Te films show potential applications of in electronics and optoelectronics.
Local perturbations of conservative $C^1$-diffeomorphisms
Creators: name: Buzzi, Jerome
name: Crovisier, Sylvain
name: Fisher, Todd
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37C15 (primary), 37B40, 37D05, 37D30 (secondary)

description: A number of techniques have been developed to perturb the dynamics of $C^1$-diffeomorphisms and to modify the properties of their periodic orbits. For instance, one can locally linearize the dynamics, change the tangent dynamics, or create local homoclinic orbits. These techniques have been crucial for the understanding of $C^1$ dynamics, but their most precise forms have mostly been shown in the dissipative setting. This work extends these results to volume-preserving and especially symplectic systems. These tools underlie our study of the entropy of $C^1$-diffeomorphisms in (arxiv:1606.01765). We also give an application to the approximation of transitive invariant sets without genericity assumptions.
description: 31 pages, companion to the paper Entropy of C1 diffeomorphisms without a dominated splitting (arxiv:1606.01765)
A Predictive Spatial Distribution Framework for Filovirus-Infected Fruit Bats
Creators: name: Fiorillo, Graziano
name: Bocchini, Paolo
name: Buceta, Javier
Publisher: name: figshare
Year: 2017
Subjects: subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Simulation code and data sets for SIR model about filovirus infection dynamics in bats populations
Odd Reproductive Problems of Small Rulllinants
Creators: name: Roberson, Jerry R.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 2010

description: Sheep, and especially goats, tend to have some fairly strange reproductive issues that while not especially common, do occur with a high enough frequency that the small ruminant practitioner will likely be presented with some of these cases. This session will discuss odd reproductive issues of primarily female sheep and goats including ring womb, atypical udder development, and pseudopregnancy, as well as a few other issues.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 2010
Edition 27: Using Evidence in Policy and Programs
Creators: name: Tim.Moore@Mcri.Edu.Au
name: Noushin.Arefadib@Mcri.Edu.Au
name: Vikki.Leone@Mcri.Edu.Au
Publisher: name: Murdoch Childrens Research Institute
Year: 2017
Subjects: Health Sciences

description: This Policy Brief outlines a decision-making framework that recognises the importance of the relationship between service providers and clients, and the need for evidence-based interventions to be aligned with client needs, priorities and values.
Management of the Severely Parasitized Small Ruminant
Creators: name: Roberson, Jerry R.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 2010

description: The most common reason for anemia in small ruminants is internal parasitism. Hemonchus contortus (barber pole worm) is a voracious bloodsucker that typically resides in the abomasum. The condition may occur in both young stock and adults alike. With the ever-increasing issue of parasite resistance, practitioners will be faced with small ruminants that are severely anemic. Providing that there are no other serious disease conditions, these cases can have successful outcomes. Management of the severely parasitized small ruminant (goat, sheep, camelid) is detailed, and subsequent herd/flock parasite management is discussed.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 2010
Buck Health Management
Creators: name: Rowe, Joan Dean
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 2010

description: The buck is often overlooked in health management planning for the goat herd. Proper care can promote the buck attaining his full genetic potential in the herd. Inattention to buck health may result in the introduction of infectious diseases or resistant parasites into the herd, reduced herd reproductive performance through the use of infertile or subfertile males, or shortened lifespan of the buck due to infectious disease or urolithiasis. Gynecomastia, mastitis, or mammary neoplasia are seen more frequently in goats than in rams or bulls. Screening bucks for breeding soundness and mating ability can help to prevent unexpected failures in breeding programs. The veterinarian can enhance herd productivity through health management planning for the buck herd.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 2010
title: Goals and strategies for rebuilding New England groundfish stocks
Creators: name: Brodziak, Jon K.T.
name: Cadrin, Steve X.
name: Legault, Christopher M.
name: Murawski, Steve A.
Publisher: name: ASC 2004 - K - Theme session
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author.Rebuilding depleted fishery resources is a world-wide problem. In the U.S., the Sustainable Fisheries Act requires that management measures should prevent overfishing and achieve BMSY in order to produce optimum yields. However, translating this legal mandate into tangible goals and actions presents several technical challenges. In this paper, we describe our experiences with helping to quantify goals and evaluating strategies to rebuild New England groundfish stocks. Maximum sustainable yields and biomass reference points for chronically overfished stocks are poorly defined unless sufficient data are available from periods of low fishing mortality rates and relatively high stock size. The conundrum of how to set meaningful rebuilding goals given limited information on population dynamics and trophic interactions of a rebuilt stock can generally be addressed through adaptive management. Monitoring the pace of rebuilding relative to changes in life history parameters and recruitment is also important for a successful rebuilding strategy. Periodic re-evaluation of rebuilding targets is also needed to address uncertainties due to density dependence, trophic interactions or environmental factors.
Three Interesting Cases and Small Ruminant Tips
Creators: name: Roberson, Jerry R.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 2010

description: More and more people have goats as pets, and goat production is on the increase. Owners are often willing to invest in more extensive medical and surgical procedures. Three interesting cases are discussed below. Although the clinical signs are common (anemia, neurologic deficits, and an enlarged abdomen), the actual diagnoses are relatively rare.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 2010
Are Deepfakes Concerning? Analyzing Conversations of Deepfakes on Reddit and Exploring Societal Implications
Creators: name: Gamage, Dilrukshi
name: Ghasiya, Piyush
name: Bonagiri, Vamshi Krishna
name: Whiting, Mark E
name: Sasahara, Kazutoshi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Deepfakes are synthetic content generated using advanced deep learning and AI technologies. The advancement of technology has created opportunities for anyone to create and share deepfakes much easier. This may lead to societal concerns based on how communities engage with it. However, there is limited research available to understand how communities perceive deepfakes. We examined deepfake conversations on Reddit from 2018 to 2021 -- including major topics and their temporal changes as well as implications of these conversations. Using a mixed-method approach -- topic modeling and qualitative coding, we found 6,638 posts and 86,425 comments discussing concerns of the believable nature of deepfakes and how platforms moderate them. We also found Reddit conversations to be pro-deepfake and building a community that supports creating and sharing deepfake artifacts and building a marketplace regardless of the consequences. Possible implications derived from qualitative codes indicate that deepfake conversations raise societal concerns. We propose that there are implications for Human Computer Interaction (HCI) to mitigate the harm created from deepfakes.
description: 19pgs, CHI22: CHI Conference on Human Factors in Computing Systems April 29-May 5, 2022 New Orleans, LA, USA
Anomalous Transport Properties of Dense QCD in a Magnetic Field
Creators: name: de la Incera, Vivian
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Despite recent advancements in the study and understanding of the phase diagram of strongly interacting matter, the region of high baryonic densities and low temperatures has remained difficult to reach in the lab. Things are expected to change with the planned HIC experiments at FAIR in Germany and NICA in Russia, which will open a window to the high-density-low-temperature segment of the QCD phase map, providing a unique opportunity to test the validity of model calculations that have predicted the formation of spatially inhomogeneous phases with broken chiral symmetry at intermediate-to-high densities. Such a density region is also especially relevant for the physics of neutron stars, as they have cores that can have several times the nuclear saturation density. On the other hand, strong magnetic fields, whose presence is fairly common in HIC and in neutron stars, can affect the properties of these exotic phases and lead to signatures potentially observable in these two settings. In this paper, I examine the anomalous transport properties produced by the spectral asymmetry of the lowest Landau level (LLL) in a QCD-inspired NJL model with a background magnetic field that exhibits chiral symmetry breaking at high density via the formation of a Dual Chiral Density Wave (DCDW) condensate. It turns out that in this model the electromagnetic interactions are described by the axion electrodynamics equations and there is a dissipationless Hall current.
description: Paper accepted for the Proceedings of the Workshop "Compact Stars at the QCD Phase Diagram V" held in L'Aquila, Italy, May 23-27, 2016
α-Chymotrypsin-catalyzed synthesis of 2-substituted benzimidazole through retro-Claisen reaction
Creators: name: Liu, Lian-Sheng
name: Xie, Zong-Bo
name: Zhang, Can
name: Fu, Lei-Han
name: Zhu, Hai-Bo
name: Le, Zhang-Gao
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Benzimidazoles are important components of pharmaceutical compounds owing to their promising bioactivities. The green, safe, and efficient synthesis of benzimidazoles has always been one of the hot topics for chemical workers. α-Chymotrypsin-catalyzed synthesis of benzimidazoles was developed by a reaction between β-keotester and o-phenylenediamine via retro-Claisen reaction. In this eco-friendly medium, a variety of benzimidazole derivatives were obtained in good to excellent yields, with just 10 mg/mL α-Chymotrypsin as catalyst.
A herd-level study of colostrum management and its association with success of passive transfer in newborn dairy calves
Creators: name: Freycon, P.
name: Buczinski, S.
name: Dubuc, J.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 2016

description: Many individual animal-level studies have been conducted to investigate the risk factors for success of passive transfer (SPT) in dairy calves. However, a much smaller number of studies are available to identify risk factors for SPT at the herd level. Therefore, the first objective of this study was to describe colostrum management in dairy herds when considering colostrum quality (IgG concentration and bacterial contamination) and feeding (volume and timing). The second objective was to quantify the prevalence of SPT in these herds and to investigate its association with colostrum management at the herd level.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 2016
An Optimized Method for the Production Using PEI, Titration and Neutralization of SARS-CoV Spike Luciferase Pseudotypes
Creators: name: Carnell, George
name: Grehan, Keith
name: Ferrara, Francesca
name: Molesti, Eleonora
name: Temperton, Nigel
Publisher: name: figshare
Year: 2017
Subjects: subject: 60506 Virology
subject: FOS: Biological sciences

description: The protocol outlined represents a cost-effective, rapid and reliable method for the generation of high-titre viral pseudotype particles with the wild-type SARS-CoV spike protein on a lentiviral vector core using the widely available transfection reagent PEI. This protocol is optimized for transfection in 6-well plates; however it can be readily scaled to different production volumes according to application. This protocol has multiple benefits including the use of readily available reagents, consistent, high pseudotype virus production Relative Luminescence Units (RLU) titres and rapid generation of novel coronavirus pseudotypes for research into strain variation, tropism and immunogenicity/sero-prevalence.
The Cryogenic AntiCoincidence detector for ATHENA X-IFU: a scientific assessment of the observational capabilities in the hard X-ray band
Creators: name: D'Andrea, Matteo
name: Lotti, Simone
name: Macculi, Claudio
name: Piro, Luigi
name: Argan, Andrea
name: Gatti, Flavio
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: ATHENA is a large X-ray observatory, planned to be launched by ESA in 2028 towards an L2 orbit. One of the two instruments of the payload is the X-IFU: a cryogenic spectrometer based on a large array of TES microcalorimeters, able to perform integral field spectrography in the 0.2-12 keV band (2.5 eV FWHM at 6 keV). The X-IFU sensitivity is highly degraded by the particle background expected in the L2 orbit, which is induced by primary protons of both galactic and solar origin, and mostly by secondary electrons. To reduce the particle background level and enable the mission science goals, the instrument incorporates a Cryogenic AntiCoincidence detector (CryoAC). It is a 4 pixel TES based detector, placed <1 mm below the main array. In this paper we report a scientific assessment of the CryoAC observational capabilities in the hard X-ray band (E>10 keV). The aim of the study has been to understand if the present detector design can be improved in order to enlarge the X-IFU scientific capability on an energy band wider than the TES array. This is beyond the CryoAC baseline, being this instrument aimed to operate as anticoincidence particle detector and not conceived to perform X-ray observations.
description: Accepted for publication on Experimental Astronomy
Are we feeding Mycobacterium paratuberculosis in calf milk replacer?
Creators: name: Kunkel, B. B.
name: Grant, I. R.
name: Foddai, A. C. G.
name: Tarrant, J. C.
name: McGuirk, S. M.
name: Collins, M. T.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 2016

description: When advising farmers on how to control Johne's disease, the number 1 recommendation is to avoid feeding waste milk to calves and instead to feed them calf milk replacer (CMR). Obviously, this advice is based on the assumption that milk replacer is free of live Mycobacterium avium subsp paratuberculosis (MAP) organisms capable of causing infection. No one has ever challenged this assumption. Preliminary work on CMR sourced in Wisconsin found that 1 of 8 (12.5%) samples tested positive for live MAP organisms by the peptide-mediated magnetic separation-phage assay (PMS-PA). Previously, 30 of 68 ( 44%) powdered milk products intended for human consumption were positive for live MAP by the same assay. The study objective was to expand the survey of CMR and to test for MAP as well as standard measures of microbiological quality.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 2016
Topological protection from exceptional points in Weyl and nodal line semimetals
Creators: name: Gonzalez, J.
name: Molina, R. A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the topological protection of surface states in Weyl and nodal-line semimetals by characterizing them as evanescent states when the band structure is extended to complex momenta. We find in this way a sequence of exceptional points -that is, branch points with zero energy in the complex spectrum- allowing us to identify the set of surface states with complex momentum signaling the decay into the 3D semimetal. From this point of view, Weyl and nodal-line semimetals can be classified in two types depending on the way surface states decay. Type A semimetals have surface states with smaller penetration length and oscillating decay while type B semimetals have longer simple exponential decays. The difference between both types reflects in the way the branch cuts in the spectrum accommodate in the complex plane. The stability of the surface states stems in this approach from the complex structure that develops around the exceptional points, with a topological protection which is based on the fact that the branch cuts cannot be closed by small perturbations. We check this property when nodal-line semimetals are placed under circularly polarized light, where we observe that the exceptional points survive the effect of such a perturbation, though appropriate boundary conditions for zero-energy surface states cannot be satisfied in general due to the breakdown of time-reversal invariance by the radiation field.
description: 12 pages, 8 figures