Results 151 to 160 of about 1,952,749 (256)

A Stochastic Frontier Model for Discrete Ordinal Outcomes: A Health Production Function [PDF]

The stochastic frontier model used for continuous dependent variables is extended to accommodate output measured as a discrete ordinal outcome variable.
Xiaohui Zhang, Xueyan Zhao, William Griffiths   +2 more
core  

AI‐Based Automated Instrument Tracking During Endoscopic Skull Base Surgery: A Pilot Feasibility Study

World Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Background Endoscopic endonasal approaches (EEA) to skull base tumors are a technically challenging procedure for both surgeons and trainees. Artificial intelligence and computer vision (CV) may offer an objective analysis that provides surgical assessment on technique and enhanced educational feedback for surgeons of all levels.
David R. Grimm, Dhiraj Pangal, Danyal Z. Khan, Margaux Masson‐Forsythe, Kaan Duman, Ayesha Syeda, Jack Cook, Peter H. Hwang, Jayakar Nayak, Zara M. Patel, Noel Ayoub, Robert Dodd, Juan Fernandez‐Miranda, Daniel Donoho, Michael T. Chang   +14 more
wiley   +1 more source

The negligible biological impact of reproductive history on aging: a high-resolution variance analysis. [PDF]

Front Aging
Roccetti M.
europepmc   +1 more source

Lifecycle Portfolio Choice with Systematic Longevity Risk and Variable Investment-Linked Deferred Annuities [PDF]

This paper assesses the impact of variable investment-linked deferred annuities (VILDAs) on lifecycle consumption, saving, and portfolio allocation patterns given stochastic and systematic mortality.
Raimond Maurer, Olivia S. Mitchell, Ralph Rogalla, Vasily Kartashov   +3 more
core  

Modelling the surprising recolonisation of an understudied aquatic mammal in a highly urbanised area: fortune favoured the smooth‐coated otter in Singapore

Wildlife Biology, EarlyView.
Ever‐growing human activities present an active and continuing threat to many species throughout the world. Nevertheless, concerted conservation efforts in some regions have balanced these threats and allowed endangered species to recolonise former parts of their original ranges and reverse their decline.
Kilian Hughes, Justin M. J. Travis, Aurore Ponchon   +2 more
wiley   +1 more source

An analytical stochastic stage-structured model for pest population dynamics: a case study on Cydia pomonella in Italy. [PDF]

J Math Biol
Perçin BT, Baiocco S, Cavina F, Pradolesi G, Pasquali S.   +4 more
europepmc   +1 more source

On the distribution of life annuities with stochastic interest rates. [PDF]

In the traditional approach to life contingencies only decrements are assumed to be stochastic. In this contribution we consider the distribution of a life annuity (and a portfolio of life annuities) when also the stochastic nature of interest rates is ...
Darkiewicz, Grzegorz, Hoedemakers, Tom, Goovaerts, Marc   +2 more
core  

Adaptive harvesting of two trophic levels stabilises predator–prey dynamics. Simulations with Eurasian lynx and European roe deer

Wildlife Biology, EarlyView.
Europe has seen the recovery of many species of wild herbivores, which are now widespread across much of the continent. In addition, large carnivores are also recolonising many European countries. Most ungulates are managed through hunting, but natural predation can also have a significant influence in many areas.
Cécile A. E. Carpentier, Marco Heurich, Olivier Devineau, Olivier Gimenez, John D. C. Linnell   +4 more
wiley   +1 more source

Prioritizing areas for wolf management in Austria by modelling potential habitat and depredation risk

Wildlife Biology, EarlyView.
The recovery of wolf populations across Europe has reignited human–wildlife conflicts, particularly in countries such as Austria, where wolves have been absent for more than a century. Livestock depredation remains one of the primary sources of tension, and effective management requires a solid spatial basis for planning.
Florian Kunz, Luca Fuchs, Matthias Amon, Klaus Hackländer, Jörg Fabian Knufinke, Jennifer Hatlauf   +5 more
wiley   +1 more source

Mortality risk estimation for autistic older adults: comparing novel machine-learning derived weights versus standard weights for the Charlson Comorbidity Index. [PDF]

J Comp Eff Res
Blake M, Nikahd M, Hyer JM, Patterson BW, Wolf BJ, Bishop L, Hand BN.   +6 more
europepmc   +1 more source