Miracle-dz/UniFAR-FTUs huggingface dataset:
Harmonic maps into hyperbolic 3-manifolds

High-energy degeneration of harmonic maps of Riemann surfaces into a hyperbolic 3-manifold target is studied, generalizing results of [M 1] in which the target is two-dimensional. The Hopf foliation of a high-energy map is mapped to an approximation of its geodesic representative in the target, and the ratio of the squared length of that representative to the extremal length of the foliation in the domain gives an estimate for the energy. The images of harmonic maps obtained when the domain degenerates along a Teichmuller ray are shown to converge generically to pleated surfaces in the geometric topology or to leave every compact set of the target when the limiting foliation is unrealizable
Calcium-related genes associated with intracellular calcification of Emiliania huxleyi (Haptophyta) CCMP 371

Copyright © 2018 The Korean Society of Phycology 181 http://e-algae.org pISSN: 1226-2617 eISSN: 2093-0860 Calcium-related genes associated with intracellular calcification of Emiliania huxleyi (Haptophyta) CCMP 371 Onyou Nam, Yoshihiro Shiraiwa and EonSeon Jin* Department of Life Science, Hanyang University, Seoul 04763, Korea Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan
From #InsideAmazon to #WeAreVolkswagen: Employee Social-Mediated Crisis Communication as Reputational Asset or Threat?

Defending their employer on LinkedIn, attacking their organisation on Twitter, publishing videos in solidarity on YouTube: A ubiquitous social-mediated environment allows employees of crisis-stricken organisations to reach out to a mass audience potentially in the millions with only a few keystrokes. But is such employee social-mediated crisis communication (ESMCC) an opportunity or a threat to their organisations? By developing the perspective of the internal employees in contrast to external stakeholders such as consumers, the research investigates the specific conditions for ESMCC to become either threat or opportunity to assets such as organisational reputation. To generate knowledge in line with scholars’ calls for quantitative, “evidence-based” crisis communication, a survey with experimental conditions was conducted among 594 participants constituting the publics of an organisation. The findings show that in comparison to consumers, employees attacking their organisation cause disproportionally more damage to organisational assets such as reputation than those defending it. In the latter scenario, employees are not more influential than consumers. It would still be a premature conclusion that ESMCC is only a threat – to this end, the study provides implications for both scholars and practitioners alike that outline positive and negative aspects.
User Perspectives On Adoption Of A Hybrid Tagging System: A Case Of Topic Structure Of Zhihu Knowledge Community

Social tagging system has been prevalent thanks to its user-centric and flexible features. However, it suffers from its uncontrolled vocabulary and loose connection between tags. To overcome their drawbacks, a hybrid tagging system, which combines the ideas of the traditional taxonomy and social tagging, is adopting by some online knowledge communities. The top layers of the hybrid tagging system are determined by the website designer, while the bottom layers are constructed by users under certain restrictions. Due to the absence of sufficient research on user acceptance of this hybrid tagging system, cognitive factors affecting user adoption of the system is explored in this paper with topic structure of Zhihu, the famous Chinese knowledge community. An integrated model is proposed based on technology acceptance model and social cognitive theory. A survey will be conducted to empirically verify relationships between proposed constructs and actual usage. The research is expected to provide guidance for incremental improvement on a hybrid tagging system or development on new tagging systems.
Comparative biology of two congeneric stinkbugs, Chinavia impicticornis and C. ubica (Hemiptera: Pentatomidae)

The objective of this work was to compare the biology of Chinavia impicticornis and C. ubica (Hemiptera: Pentatomidae), two species of stinkbugs that occur as secondary pests in soybean. Life table procedures were used for evaluating nymphs, and fecundity tables for evaluating adults, in order to establish the demographics of the two species. The two species have similar demographic parameters, and the development of immature stages, from egg to adult, had similar duration periods of approximately 30 days. In both species, eggs and second‑instar nymphs were the stages with higher mortality. Total egg production did not differ between females of both species. Fecundity and survival curves for adults showed similar trends in both species. However, C. ubica had greater potential to increase its populations, since its fecundity parameters were significantly higher than those of C. impicticornis . Moreover, the generational time and the time required to double the population size were shorter in C. ubica . Prolonged longevity, long oviposition period, high fecundity, and the ability to rapidly increase their populations indicate that both species can become potential pests in favorable environments.
Extended Boussinesq equations for waves in porous media

In this study we develop a new extended Boussinesq model that predicts the propagation of water waves in porous media. The inertial and drag resistances are taken account into the model in which the results are the same with the extended Boussinesq equations of Madsen and Sorensen (1992) when these resistances are removed. The developed model introduces its simplicity in solving the matching conditions at the permeable breakwater interfaces. The whole computational domain can be involved by specifying the porosity equal to unity outside the breakwater and to a value below unity inside the breakwater. There is no need for using any matching conditions at the interface. Furthermore, the applications of this current developed model are also extended to the cases that waves propagate inside and/or over a porous layer. For verification of the developed model, the internal generation of wave technique is applied to simulate sinusoidal and cnoidal waves propagating inside porous media in shallow and deep waters and nonlinear cnoidal waves interacting with porous breakwater. Numerical results give a good agreement with analytical solutions. Transformation of solitary waves to porous breakwater is also carried out. Refraction and transmission of solitary waves to the porous breakwater are well captured and verified by available physical experimental data
SEASONAL SHIFTS IN THE EFFECTS OF WEATHER ON THE VISIBLE MIGRATION OF RED-TAILED HAWKS AT HAWK MOUNTAIN, PENNSYLVANIA, 1992-1994

We used hourly counts of Red-tailed Hawks (Bufeo jumaicensis) migrating at Hawk Mountain during the autumns of 1992, 1993, and 1994, to examine the possibility that the extent to which time of day and local weather parameters affected the numbers of birds seen at the site varied over the course of autumn migration. Data were analyzed separately for early-, mid-, and late-season periods of migration. High versus low winds, following versus opposing winds, low versus high relative humidity, and high versus low barometric pressure were associated with increased hourly passage rates of Red-tailed Hawks. Relative humidity had a greater effect during early-season migration. Wind speed and wind direction had greater effects during late-season migration. We suggest that shifts in the extent to which weather affects the numbers of Red-tailed Hawks seen at Hawk Mountain Sanctuary result from seasonal shifts in the species' dependence on thermal- versus slope-soaring. Received 6 March 1996, accepted 20 Nov. 1996. Counts of migrating raptors at traditional raptor these sites suggest that time of day and local weather are associated with changes in the numbers of raptors counted at these sites (Haugh 1972, Kerlinger 1989). The extent to which such associations vary over the course of autumn migration-a period of considerable seasonal change in weather-re- mains unstudied. In eastern North America, many Red-tailed Hawks (Buteo jumaicensis) breeding in northern areas migrate south each autumn. Migration begins in August and ends in December (Bednarz et al. 1990, Preston and Beane 1993). At Hawk Mountain Sanctuary, counts of several thousand Red- tailed Hawks (55 years (1934-19911 X = 3231 + 19.0 (SE)) peak in late October or early November each year (Allen et al. 1996). Haugh (1972) found that northerly winds, low temperatures, decreasing humidity, and increasing barometric pressure were associated with high counts of Red-tailed Hawks migrating past Hawk Mountain Sanctuary. Titus and Mosher (1982) reported that Red-tailed Hawks migrating through the region were affected by wind direction, wind speed, temper- ature, and day of year. Brinker and Erdman (1983) reported that Red- tailed Hawks migrating in Wisconsin were affected by wind drift (i.e.,
The Role of Intergenerational Transfers in Aggregate Capital Accumulation

This paper uses historical U.S. data to directly estimate the contribution of intergenerational transfers to aggregate capital accumulation. The evidence presented indicates that intergenerational transfers account for the vast majority of aggregate U.S. capital formation; only a negligible fraction of actual capital accumulation can be traced to life-cycle or "hump" savings. A major difference between this study and previous investigations of this issue is the use of more accurate longitudinal age-earnings and age-consumption profiles. These profiles are simply too flat to generate substantial life-cycle savings. This paper suggests the importance of and need for substantially greater research and data collection on intergenerational transfers. Life-cycle models of savings that emphasize savings for retirement as the dominant form of capital accumulation should give way to models that illuminate the determinants of intergenerational transfers.
Second Virial Coefficients for Dimethyl Ether

Dimethyl ether (DME) is a clean and economical alternative fuel. In addition, it is also an ozone-friendly refrigerant. Burnett measurements were carried out at temperatures from (344 to 393) K and at pressures from (0.055 to 4.015) MPa. A total of 138 experimental points, taken along 15 isotherms and 12 different temperatures, were obtained. The apparatus was calibrated by helium. The derived second coefficients were compared with the selected correlations and with literature data.
Counterfactual Normalization: Proactively Addressing Dataset Shift Using Causal Mechanisms

Predictive models can fail to generalize from training to deployment environments because of dataset shift, posing a threat to model reliability in practice. As opposed to previous methods which use samples from the target distribution to reactively correct dataset shift, we propose using graphical knowledge of the causal mechanisms relating variables in a prediction problem to proactively remove variables that participate in spurious associations with the prediction target, allowing models to generalize across datasets. To accomplish this, we augment the causal graph with latent counter-factual variables that account for the underlying causal mechanisms, and show how we can estimate these variables. In our experiments we demonstrate that models using good estimates of the latent variables instead of the observed variables transfer better from training to target domains with minimal accuracy loss in the training domain.
G-symmetric monoidal categories of modules
over equivariant commutative ring spectra

We describe the multiplicative structures that arise on categories of equivariant modules over certain equivariant commutative ring spectra. Building on our previous work on N-infinity ring spectra, we construct categories of equivariant operadic modules over N-infinity rings that are structured by equivariant linear isometries operads. These categories of modules are endowed with equivariant symmetric monoidal structures, which amounts to the structure of an "incomplete Mackey functor in homotopical categories". In particular, we construct internal norms which satisfy the double coset formula. We regard the work of this paper as a first step towards equivariant derived algebraic geometry.
Ross-type dynamic portfolio separation ( almost ) without

While it is common knowledge that portfolio separation in a continuous-time lognormal market is due to the basic properties of the Gaussian distribution, the usual textbook exposition relies on dynamic programming and thus Itô stochastic calculus and the appropriate regularity conditions. This paper shows how Ross-type distributions-based separation properties in continuous-time and discrete-time models, are easily inherited from a singleperiod model, generalizing and simplifying an approach of Khanna and Kulldorff (Finance Stoch. 3 (1999), pp. 167–185) down to multivariate distributions theory, stochastic dominance and the definition of the Itô integral. In addition to (re-) covering the classical cases of elliptical distributions (with or without risk-free opportunity) and symmetric α-stables/substables, this paper also gives separation results for non-symmetric stable returns distributions under no shorting-conditions, this including new cases of one fund separation without risk-free opportunity. Applicability of the skewed cases to insurance and banking is discussed, as well as limitations.
Resiliency and Market Quality Around Predictable Trades : Theory and Evidence *

We extend the theory of strategic trading around a predictable liquidation by considering the role of market resiliency. Our model predicts that even a monopolist strategic trader improves market quality and increases liquidator proceeds if trades’ temporary price impacts are quickly reversed. We provide related empirical evidence by studying prices, liquidity, and individual account trading activity around the large and predictable “roll” trades undertaken by the largest ETF tracking crude oil futures prices. The evidence indicates narrower bid-ask spreads, greater order book depth and improved resiliency on roll dates. We find that a larger number of individual trading accounts provide liquidity on roll dates, and do not find evidence of the systematic use of predatory strategies. On balance, the theory and evidence supports that strategic traders choose to provide liquidity to predictable trades in resilient markets. However, the large volume of trading associated with the roll transactions leads to substantial trade execution costs that average three percent per year.
Premium Rate Determination in the Federal Crop Insurance Program: What Do Averages Have to Say About Risk?

This article reviews actuarial procedures used to calculate premium rates in the federal crop insurance program. Average yields are used as an important indicator of risk under current rating practices. The strength and validity of this relationship is examined using historical yield data drawn from a large sample of Kansas farms. The results indicate that assumed relationships between average yields and yield variation are tenuous and imply that rating procedures that rely on average yields may induce adverse selection.
What do sports medicine professionals working in football need to know about sport psychology

Sport psychology and sports injury are undeniably linked - psychological factors have been shown to impact on both injury prevention and injury rehabilitation. Factors such as high stress levels can increase the risk of injury, whilst the occurrence of a sports injury can lead to several negative psychological reactions such as anger, frustration, fear, anxiety and depression which can impact on rehabilitation behaviour (e.g. adherence to a rehabilitation programme) and outcomes (e.g. recovery time) (Brewer & Redmond, 2017). Consequently, the use of sport psychology intervention during injury rehabilitation is advocated and has been shown to lead to several positive outcomes such as improved attitude, adherence and self-efficacy (Brewer, 2010).
The Cepheid period–luminosity–metallicity relation based on Gaia DR2 data

Aims. We use parallax data from the Gaia second data release (GDR2), combined with parallax data based on HIPPARCOS and HST data, to derive the period–luminosity–metallicity (PLZ) relation for Galactic classical cepheids (CCs) in the V, K, and Wesenheit WVK bands. Methods. An initial sample of 452 CCs are extracted from the literature with spectroscopically derived iron abundances. Reddening values, classifications, pulsation periods, and mean V- and K-band magnitudes are taken from the literature. Based on nine CCs with a goodness-of-fit (GOF) statistic smaller than 8 and with an accurate non-Gaia parallax (σπ comparable to that in GDR2), a parallax zero-point offset of −0.049 ± 0.018 mas is derived. Selecting a GOF statistic smaller than 8 removes about 40% of the sample most likely related due to binarity. Excluding first overtone and multi-mode cepheids and applying some other criteria reduces the sample to about 200 stars. Results. The derived PL(Z) relations depend strongly on the parallax zero-point offset. The slope of the PL relation is found to be different from the relations in the LMC at the 3σ level. Fixing the slope to the value found in the LMC leads to a distance modulus (DM) to the LMC of order 18.7 mag, larger than the canonical distance. The canonical DM of around 18.5 mag would require a parallax zero-point offset of order −0.1 mas. Given the strong correlation between zero point, period and metallicity dependence of the PL relation, and the parallax zero-point offset there is no evidence for a metallicity term in the PLZ relation. Conclusions. The GDR2 release does not allow us to improve on the current distance scale based on CCs. The value of and the uncertainty on the parallax zero-point offset leads to uncertainties of order 0.15 mag on the distance scale. The parallax zero-point offset will need to be known at a level of 3 μas or better to have a 0.01 mag or smaller effect on the zero point of the PL relation and the DM to the LMC.
Modelling the determinants of wine choice among South Africa’s “Black Diamonds”

This paper uses a choice based conjoint analysis in an attempt to develop a consumer profile for the new market for black consumers. Although the different statistical packages used variants of the MNL model, the results were significantly similar with no contradictions in their results and the model provided here had the best statistical significance. Despite the models’ imminent statistical insignificance, they suggested valuable notions about black consumers’ wine choice determinants. Age, gender and the choice of favourite red wine may be used to segment the market and the other significant coefficients will affect the marketing and distribution choices to be followed by wine companies.
Health status of female farm labours

The present investigation was designed to assess the health status of randomly selected 500 female farm labourers i.e. 250 each from urban slums and rural area of Parbhani District of Marathwada region of Maharashtra state. The study involved anthropometry, food consumption pattern, nutrient intake and haemoglobin estimation of selected 500 female farm labourers. Results revealed that the height, weight, BMI, MUAC, waist circumference, hip circumference and WHR of selected female farm labours from different socio-economic group ranged between 150.28 + 5.80 to 151.32 + 4.96 cm, 47.77 + 8.63 to 51.05 + 9.53 kg, 20.87 + 3.42 to 22.52 + 3.98, 24.99 + 3.22 to 26.06 + 3.84 cm, 72.05 + 8.10 to 76.35 + 10.15 cm, 86.13 + 7.63 to 90.55 + 9.10 cm and 0.83 + 0.06 to 0.86 + 0.08 respectively. It is observed that on the basis of BMI, 57.00 to 64.00 percent female farm labours were normal, 12.8 to 25.6 per cent were categorized under over weight category whereas remaining were suffering from with one or other degree of under nutrition ranged from 16 to 28 percent. Further in both the age groups (21-30yrs and 31-40yrs) mean food intake was near about same. Whereas rural and vegetarian labours shown better consumption of all foods except fats and oils and meat and meat products. When comparison was made between different income groups with respect to consumption of mean food intake, it was noted that difference was very meager. Intake of different nutrients was better in higher age group (31-40yrs), rural and vegetarian respondents. Further it was observed that there was not much difference in intake of different nutrients when compared between different income levels. The haemoglobin values of selected female labours as per different socio-economic conditions were ranging from 9.83 ± 1.48 to 10.22 ± 1.32.
EXCEPTIONAL BOUNDARY SETS FOR SOLUTIONS OF PARABOLIC PARTIAL DIFFERENTIAL

Let J( be a second order, linear, parabolic partial differential operator with coefficients defined in a domain Se = Û x (0, T) in R" X R, with Q a domain in R". Let u be a suitably regular real function in 9 such that u is bounded below and Jt'u is bounded above in 9. If u > 0 on ß x {0} except on a set T X {0}, with T a subset of Q of suitably restricted Hausdorff dimension, then necessarily u 3* 0 also on T X {0}. The allowable Hausdorff dimension of T depends on the coefficients of Jf'. For example, if M is the heat operator A 9/9i, the Hausdorff dimension of T needs to be smaller than the number of space dimensions n. Analogous results are valid for exceptional boundary sets on the lateral boundary, 3Í2 X (0,T), of 9.
TOURIST SAFETY AND SECURITY: A FACTOR OF THE COMPETITIVENESS OF SECONDARY TOURIST DESTINATIONS

Most specialized studies aiming to quantify economic competitiveness have predominantly focused on the issues that support a strong productive sector and, less on related fields, but gives added value. Under these circumstances, success can only be associated with the possession and fructification of the elements generating competitive advantages. It is already known that in order to be competitive, a destination or an economic entity in the field must be able to attract and satisfy tourists to a higher level in relation to competition. The geopolitical cliff and profound globalization of services - coupled with the most relaxing leisure time - motivated us to treat somehow succinctly a particular aspect of tourism competitiveness, of critical importance in our view - tourist safety and security. To substantiate the analysis, we have used the data provided by the World Economic Forum through the Tourism Competitiveness Index (TCI), which is one of the most used tools for assessing international tourism competitiveness. From a methodological point of view, the same index was used to highlight any gaps between Romania and the other Central and Eastern European countries (EEC-EU).
Development and Evaluation of an Inverse Solution Technique for Studying Helicopter Maneuverability and Agility

Abstract : An inverse solution technique for determining the maximum maneuvering performance of a helicopter using smooth, pilotlike control inputs is presented. Also described is a piloted simulation experiment performed on the NASA Ames Advanced Cab and Visual System to investigate the accuracy of the solution resulting from this technique. The maneuverability and agility capability of the helicopter math model was varied by varying the pitch and roll damping, the maximum pitch and roll rate, and the maximum load-factor capability. Three maneuvers were investigated: a 180-degree turn, a longitudinal pop-up, and a lateral jink. The inverse solution technique yielded accurate predictions of pilot-in-the-loop maneuvering performance for two of the three maneuvers. For the purposes of this study, maneuverability is defined as the maximum achievable time rate of change of the velocity vector at any point in the flight envelope, and agility is defined as the maximum achievable time-rate-of-change of the acceleration vector at any point in the flight envelope.