Road safety index is an important indicator that has been recently introduced as a useful tool to measure the quality of life in many countries and cities. Road safety index is a complex index and it has at least three main components, including road user behavior, vehicle safety, and road infrastructure effects. Many researchers have selected studying road performance from road safety index pe...

This paper describes an attempt to shed some light on road safety in Asia Pacific region by characterizing and assessing its road accidents. The relevant national road accident data were extracted from centralized data sources of international agencies. Due to data incompleteness and missing values, 21 Asia Pacific countries, presenting more than half of the world’s population, were selected fo...

We prove that the log Hodge de Rham spectral sequences of certain proper smooth schemes Cartier type in characteristic $$p>0$$ degenerate at $$E_1$$ . also Kodaira vanishings for them hold when they are projective. formulate weak Lefschetz conjecture crystalline cohomologies and it is true cases.