Results 81 to 90 of about 19,632 (257)

A Tale of Two Transitions: Mobility Dynamics in China and Russia After Central Planning

Journal of Applied Econometrics, EarlyView.
ABSTRACT This paper examines intergenerational mobility in China and Russia during their transitions from central planning to market systems. We consider mobility as movement, measured as changes in status between parents and children. We provide estimates of two key mobility measures: overall mobility, which captures total intergenerational movement ...
Kristina Butaeva, Lian Chen, Steven N. Durlauf, Albert F. Park   +3 more
wiley   +1 more source

The Relationship Between Human Activities and Ecosystem Service Supply–Demand From the Perspective of Land Use Transformation

Land Degradation &Development, EarlyView.
ABSTRACT The equilibrium between ecosystem service supply and demand relationships (ESSDR) is essential for regional sustainable development. Understanding the relationship between human activity intensity (HAI) and ESSDR from the perspective of land use transformation (LT) is important for ecological management and governance.
Rongping Liang, Wei Wei, Xiaoxu Wei, Binbin Xie, Junju Zhou, Qiaolin Shu, Yongcheng Wang   +6 more
wiley   +1 more source

Unraveling the Spatiotemporal Dynamics and Nonlinear Drivers of Green Transition of Farmland Use in Major Grain‐Producing Areas: A Case Study of Jiangsu Province, China

Land Degradation &Development, EarlyView.
ABSTRACT Promoting the green transition of farmland use (GTFU) in major grain‐producing areas is essential for ensuring food security and advancing sustainable agricultural development. However, existing studies on GTFU have predominantly relied on static cross‐sectional analyses, with insufficient attention paid to its nonlinear driving mechanisms. To
Zhixian Sun, Yixuan Lu, Xinyue Zheng, Dongmei Zhang, Yian Xu, Guanxin Yao   +5 more
wiley   +1 more source

A discrete-time split-state framework for multi-state modeling with application to describing the course of heart disease

BMC Medical Research Methodology
In chronic disease epidemiology, the investigation of disease etiology has largely focused on an endpoint, while the course of chronic disease is understudied, representing a knowledge gap. Multi-state models can be used to describe the course of chronic
Ming Ding, Haiyi Chen, Feng-Chang Lin
doaj   +1 more source

Compensating Operator and Weak Convergence of Semi-Markov Process to the Diffusion Process without Balance Condition

Journal of Applied Mathematics, 2015
Weak convergence of semi-Markov processes in the diffusive approximation scheme is studied in the paper. This problem is not new and it is studied in many papers, using convergence of random processes.
Igor V. Malyk
doaj   +1 more source

Land Use Spatial Optimization Based on Multi‐Objective Ant Colony Algorithm and FLUS Model: A Case Study of Korla City and Tiemenguan City, China

Land Degradation &Development, EarlyView.
ABSTRACT In southern Xinjiang, China, scarce land and water resources and fragile ecosystems have intensified land use conflicts, making land resource allocation optimization essential for sustainable development in arid oasis areas. Focusing on Korla and Tiemenguan, this study aims to coordinate economic benefits, ecological benefits, and food ...
Kaifa Zhang, Xiaojun Yin, Benhao Li, Keke Chang, Xinghai Zhang, Tao Deng   +5 more
wiley   +1 more source

Joint Tracking of Manoeuvring Targets and Classification of Their Manoeuvrability

EURASIP Journal on Advances in Signal Processing, 2004
Semi-Markov models are a generalisation of Markov models that explicitly model the state-dependent sojourn time distribution, the time for which the system remains in a given state.
Maskell Simon
doaj   +1 more source

Attractors of iterated function systems and Markov operators

Abstract and Applied Analysis, 2003
This paper contains a review of results concerning “generalized” attractors for a large class of iterated function systems {wi:i∈I} acting on a complete separable metric space.
Józef Myjak, Tomasz Szarek
doaj   +1 more source

Hidden Semi-Markov Models-Based Visual Perceptual State Recognition for Pilots. [PDF]

Sensors (Basel), 2023
Gao L, Wang C, Wu G.
europepmc   +1 more source

Future Soil Erosion Under Combined CMIP6 Climate Projections and Land Use/Land Cover Change: A RUSLE‐Based Assessment of the Kampe Omi Dam Basin in Nigeria

Land Degradation &Development, EarlyView.
ABSTRACT Soil erosion remains a major environmental challenge in Nigeria, driven by the combined effects of climate variability and land use/land cover (LULC) changes. Understanding future dynamics is essential for effective soil conservation planning.
Titus Adeyemi Alonge, Amos T. Kabo‐Bah, Lily Lisa Yevugah, Abdul‐Karim Iddrisu   +3 more
wiley   +1 more source