Results 121 to 130 of about 124,330 (306)

Intelligent Sky Guardians (InSkyGuard): An Aerial Robotic Swarm for Autonomous Detection and Entrapment of Rogue Multirotors

open access: yesAdvanced Robotics Research, EarlyView.
Intelligent Sky Guardians (InSkyGuard) is introduced as a four‐drone swarm that autonomously detects, tracks, and safely captures rogue drones using a coordinated net system. Computer vision and leader–follower control architecture enable synchronized enclosure, while integrated failsafes enhance system reliability. Validated through closed‐environment
Joshua Hastings   +6 more
wiley   +1 more source

Longevity risk and capital markets: The 2009-2010 update

open access: yes
This Special Issue of the North American Actuarial Journal contains ten contributions to the academic literature all dealing with longevity risk and capital markets.
MacMinn, Richard   +3 more
core  

In Vivo Microplastic Detection With Photoacoustic Imaging

open access: yesAdvanced Science, EarlyView.
ABSTRACT Microplastics are posing an escalating threat to both ecological systems and human health. Yet, current methods for investigating their bioaccumulation are highly invasive, requiring destructive analysis of ex vivo tissues via mass spectrometry, dye labelling, or Raman microspectroscopy.
Joseph C. Bear   +9 more
wiley   +1 more source

Longevity Risk and Natural Hedge Potential in Portfolios Of Life Insurance Products: The Effect of Investment Risk

open access: yes
Payments of life insurance products depend on the uncertain future evolution of survival probabilities. This uncertainty is referred to as longevity risk.
De Waegenaere, A.M.B.   +2 more
core  

Dissecting the Ecological Structure of Health and Disease in the Global Gut Microbiome

open access: yesAdvanced Science, EarlyView.
We introduce Wiredancer, a framework that identifies three continuous ecological factors of the gut microbiota. These factors exhibit distinct patterns across health and disease, jointly capturing disrupted ecological stability and offering a new perspective for precision diagnostics and therapeutic strategies.
Baoyuan Zhu   +19 more
wiley   +1 more source

The Optimal Product Mix for Hedging Longevity Risk in Life Insurance Companies

open access: yes, 2011
[[abstract]]Hedging longevity risks has taken on an increasingly important role for life insurance companies. According to the concept of natural hedging, life insurance can serve as a dynamic hedge vehicle against unexpected mortality risk.
H.C. Huang;Sharon S. Yang;Jennifer L. Wang;Jeff T. Tsai
core  

Nanocellulose Alleviates Intrahepatic Cholestasis of Pregnancy via Gut Microbiota‐Mediated Bile Acid Homeostasis

open access: yesAdvanced Science, EarlyView.
Nanocellulose, derived from microcrystalline cellulose (MCC) through sulfuric acid hydrolysis or mechanical grinding to produce CNC or CNF, was tested in a rat ICP model. Particularly, CNF improved gut microbiota composition, reduced secondary bile acid metabolism, and restored bile acid homeostasis through modulation of the gut–liver axis.
Muhua Yu   +18 more
wiley   +1 more source

The Effect of Improvements in Health and Longevity on Optimal Retirement and Saving [PDF]

open access: yes
We develop a life-cycle model of optimal retirement and savings behavior under complete markets where retirement is caused by worsening health in old age. Our model explains the long-run decline in the age of retirement as an income level effect. We show
David E. Bloom   +2 more
core   +2 more sources

Solvency appraisal for life annuities: demographic risk measures

open access: yes, 2010
The paper focuses on the solvency analysis for a portfolio of life annuities pursued according to suitable risk indexes apt to describe the evolution in time of the demographic risk.
M. Sibillo   +3 more
core  

Nigra‐Subthalamic Dopaminergic Circuitry Modulates and Represents Distinct Pain Modality in Physiological and Pain States in Mice

open access: yesAdvanced Science, EarlyView.
Nigral dopaminergic (DA) neurons modulate and represent pain with a preference to a particular modality (mechanical) and laterality (contralateral), which are controlled by nigral GABAergic neurons. The pain modulation is mimicked by the nigro‐subthalamic projection and its downstream neurons, involving D2‐like receptors.
Ying Ji   +13 more
wiley   +1 more source

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