Results 91 to 100 of about 392,820 (275)

Robust forecasting of mortality and fertility rates: a functional data approach [PDF]

open access: yes
We propose a new method for forecasting age-specific mortality and fertility rates observed over time. Our approach allows for smooth functions of age, is robust for outlying years due to wars and epidemics, and provides a modelling framework that is ...
Md. Shahid Ullah, Rob J. Hyndman
core  

Reclaimed Well Sites on Salt Affected Soils: Electrical Conductivity and Sodium Adsorption Ratio as Plant Community Response Indicators

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Salt affected soils are common worldwide, resulting from natural causes and anthropogenic activities. Saline and sodic soils often occur in association with oil and gas production, impacting soil properties which can impede vegetation growth and development.
Laura Bony   +3 more
wiley   +1 more source

The magnitude and economic replacement value of wild meat obtained from ‘recreational’ big game hunting in the United States

open access: yesPeople and Nature, EarlyView.
Abstract Meat production has notable benefits for food security, nutrition and various production economies, but has elicited substantial negative environmental impacts. Recreational hunting provides an alternative to agricultural meat production for over 24 million hunters worldwide.
Shane P. Mahoney, Richard D. Honor
wiley   +1 more source

Modelling the cohort effect in CBD models using a piecewise linear approach [PDF]

open access: yes, 2012
This paper discusses a new pattern of mortality model which is built on the form and knowledge of the two-factor mortality model named after its designers Cairns, Blake and Dowd (2006).
Sweeting, Paul, Zhao, Yiwei
core   +1 more source

Recent advances in Joule‐heating synthesis of functional nanomaterials for photo and electrocatalysis

open access: yesPhotoMat, EarlyView.
This paper presents a comprehensive overview of recent advancements in Joule‐heating synthesis of photo and electrocatalysts, emphasizing its benefits and applications. The objective is to offer an effective strategy for enhancing the diversity and performance of catalytic materials.
Jiaqi Li   +4 more
wiley   +1 more source

Time Series Properties and Stochastic Forecasts: Some Econometrics of Mortality from the Canadian Laboratory [PDF]

open access: yes
Methods for time series modeling of mortality and stochastic forecasting of life expectancies are explored, using Canadian data. Consideration is given first to alternative indexes of aggregate mortality.
Byron G. Spencer   +2 more
core  

Digitizing collections to unlock the full potential of palynology: A case study with the Smithsonian palynology collection

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Large palynological collections have been built over decades and contain vital information. However, they are often difficult to access and use effectively. What is the point of having such collections if they are not fully utilizable? To solve this problem, we digitized the Smithsonian palynological collection using both light and confocal microscopy.
Carlos Jaramillo   +37 more
wiley   +1 more source

Impact of different mortality forecasting methods and explicit assumptions on projected future life expectancy: The case of the Netherlands

open access: yesDemographic Research, 2013
BACKGROUND With the rapid aging of the population, mortality forecasting becomes increasingly important, especially for the insurance and pension industries.
Lenny Stoeldraijer   +3 more
doaj  

A pipeline to compile expert‐verified datasets of digitised herbarium specimens for automated plant identification to accelerate taxonomy

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Understanding and protecting plant life is essential for tackling the twin challenges of biodiversity loss and climate change. To support this, we have developed a new digital approach that helps identify plant species more quickly and accurately.
Jed Arno   +10 more
wiley   +1 more source

Data‐Driven Methods for Multiple and Dual Response Optimization on Operational Data Using Stochastic PRIM

open access: yesQuality and Reliability Engineering International, EarlyView.
ABSTRACT Upon establishing multiple response optimization (MRO) or dual response optimization (DRO), response surface methodology (RSM) acts as a conventional model‐driven framework for optimizing small‐sized experimental data to derive an input condition in which a decent response is expected.
Dong‐Hyun Koo   +2 more
wiley   +1 more source

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