18 papers · ranked by Valyu relevance
Thomas H. Burbine, Richard C. Greenwood
Sample return from a main-belt asteroid has not yet been attempted, but appears technologically feasible. While the cost implications are significant, the scientific case for such a mission appears overwhelming. As suggested by the “Grand Tack” model, the structure of the main belt was likely forged during the earliest…
Stefanie N. Milam, Jason P. Dworkin, Jamie E. Elsila, D. P. Glavin + 16 more
'P. A. Gerakines' 'Julie L. Mitchell' 'K. Nakamura‐Messenger' 'Marc Neveu' 'L. R. Nittler' 'James D. A. Parker' 'Elisa V. Quintana' 'Scott A. Sandford' 'Joshua E. Schlieder' 'R. M. Stroud' 'M. G. Trainer' 'M. Wadhwa' 'A. J. Westphal' 'M. E. Zolensky' 'Dennis Bodewits' 'S. J. Clemett'] Stefanie N. Milam1 , NASA GSFC…
Malaya Kumar Biswal M, Ramesh Naidu Annavarapu
— Space agencies have been incessantly working to propose a sustainable architecture for human Mars mission. But, before proceeding to a giant leap and accomplishing those mission intent, it is significant to know the extent of possibility to expand terrestrial species on the vast red planet. Decades of scientific…
Chia-Lin Lin, Pei-Chi Huang, Simone Graessle, Christoph Grathwol + 20 more
Results of scientific work in chemistry can usually be obtained in the form of materials and data. A big step towards transparency and reproducibility of the scientific work can be gained if scientists publish their data in a FAIR (Findable, Accessible, Interoperable, Reusable) manner in research data repositories.…
Ashley E. Kim, Elisabeth Brandstetter, Naomi Wilcox, Jessica Heimonen + 21 more
While influenza and other respiratory pathogens cause significant morbidity and mortality, the community-based burden of these infections remains incompletely understood. The development of novel methods to detect respiratory infections is essential for mitigating epidemics and developing pandemic-preparedness…
Paul Dolan, Caroline Rudisill
Financial incentives have been used in a variety of settings to motivate behaviors that might not otherwise be undertaken. They have been highlighted as particularly useful in settings that require a single behavior, such as appointment attendance or vaccination. They also have differential effects based on…
Desislava Chetalova, Thilo A. Schmitt, Rudi Schäfer, Thomas Guhr
We consider random vectors drawn from a multivariate normal distribution and compute the sample statistics in the presence of stochastic correlations. For this purpose, we construct an ensemble of random correlation matrices and average the normal distribution over this ensemble. The resulting distribution contains a…
Niklas Wilming, Simon Harst, Nico Schmidt, Peter König + 1 more
The interest in saccadic IOR is funneled by the hypothesis that it serves a clear functional purpose in the selection of fixation points: the facilitation of foraging. In this study, we arrive at a different interpretation of saccadic IOR. First, we find that return saccades are performed much more often than expected…
Lauren Powell, Chelsea Reinhard, Donya Satriale, Margaret Morris + 2 more
'James Serpell' 'Brittany Watson'] A considerable number of adopted animals are returned to animal shelters post-adoption which can be stressful for both the animal and the owner. In this retrospective analysis of 23,932 animal records from a US shelter, we identified animal characteristics associated with the…
Steven G. Luke, Joseph Schmidt, John M. Henderson
Oculomotor inhibition of return (O-IOR) is an increase in saccade latency prior to an eye movement to a recently fixated location compared to other locations. It has been proposed that this temporal O-IOR may have spatial consequences, facilitating foraging by inhibiting return to previously attended regions. In order…
Yoann Bourhis, Timothy R. Gottwald, Francisco J. Lopez-Ruiz, Sujin Patarapuwadol + 1 more
Monitoring for disease requires subsets of the host population to be sampled and tested for the pathogen. If all the samples return healthy, what are the chances the disease was present but missed? In this paper, we developed a statistical approach to solve this problem considering the fundamental property of…
Alberto Sandoval, Javier Márquez, Ignacio Cervera, Stefan Cristian Gherghina
'Stefan Cristian Gherghina'] This work uses long-term operating accruals, rather than current, as an accounting measure to identify major anomalies. Past and abundant accounting and financial literature associates anomalies with problems of reliability and assigns lower reliability to long-term operating accruals than…
Stephen Taylor, Ming Fang
This article develops unbiased weighted variance and skewness estimators for overlapping return distributions. These estimators extend the variance estimation methods constructed in Bod et. al. (Applied Financial Economics 12:155-158, 2002) and Lo and MacKinlay (Review of Financial Studies 1:41-66, 1988). In addition…
Thiago Rezende dos Santos
Several studies explore inferences based on stochastic volatility (SV) models, taking into account the stylized facts of return data. The common problem is that the latent parameters of many volatility models are high-dimensional and analytically intractable, which means inferences require approximations using, for…
Michael R. Metel, Traian A. Pirvu, Julian Wong
We prove that the Omega measure, which considers all moments when assessing portfolio performance, is equivalent to the widely used Sharpe ratio under jointly elliptic distributions of returns. Portfolio optimization of the Sharpe ratio is then explored, with an active-set algorithm presented for markets prohibiting…
Authors not listed
Solving optimization problems, especially for nonlinear and constrained systems, is a challenge. Decades of specialized algorithms have been developed for general and special cases of root finding, minimization (including constraints), for parameter estimation, and mapping connected spaces. These approaches typically…
Tal Seidel Malkinson, Alexia Bourgeois, Nicolas Wattiez, Pierre Pouget + 1 more
Inhibition of return (IOR) refers to the slowing of response times (RTs) for stimuli repeated at previously inspected locations, as compared with novel ones. However, the exact processing stage(s) at which IOR occurs, and its nature across different response modalities, remain debated. We tested predictions on these…
Charlie S. Burlingham, Naveen Sendhilnathan, Oleg Komogortsev, T. Scott Murdison + 1 more
People coordinate their eye, head, and body movements to gather information from a dynamic environment while maximizing reward and minimizing biomechanical and energetic costs. Such natural behavior is not possible in a laboratory setting where the head and body are usually restrained and the tasks and stimuli used…