Precipitation is the main water source for vegetation survival in arid and semi-arid areas. However, previous studies always focus on the effects of precipitation in different time scales, but ignore the effects of precipitation in different spatial scales. To further study the effects of precipitation fluctuation in different spatial scales, we used the wavelet analysis method to analyze its t...

Pro-cyclical aggregate R&D has been taken as evidence against the conventional Schumpeterian view on the optimal timing of innovation. We decompose aggregate R&D and real GDP in the U.S. into those by 22 industry groups. Surprisingly, we find only 5.67% of pro-cyclical aggregate R&D reflects withinindustry timing of innovation and production, but 94.37% arises from interindustry co-movement bet...

Citation: Potter KE, Shervais JW, Christiansen EH and Vetter SK (2018) Evidence for Cyclical Fractional Crystallization, Recharge, and Assimilation in Basalts of the Kimama Drill Core, Central Snake River Plain, Idaho: 5.5-Million-Years of Petrogenesis in a Mid-crustal Sill Complex. Front. Earth Sci. 6:10. doi: 10.3389/feart.2018.00010 Evidence for Cyclical Fractional Crystallization, Recharge,...

This study investigates the association between dedication commitment and sliding (moving through relationship transitions without considering the consequences) over 14 weeks for emerging adults in cyclical (partners who have broken up and renewed) and non-cyclical relationships. An autoregressive cross-lagged panel and bivariate latent growth curve analysis were conducted using three waves of ...

With governments worldwide attempting to increase the labour force participation of older workers in the context of ageing populations, both older workers marginally attached to the labour force (discouraged workers), and those whose labour force participation is affected by cyclical fluctuations (via the discouraged worker effect), are of particular interest to policy makers. Analysis of OECD ...

The precise role of the human primary motor cortex in walking is unknown. Our previous study showed that the primary motor cortex may contribute to specific requirements of walking (i.e., maintaining a constant movement frequency and bilaterally coordinating the feet). Because aging can impair (i) the ability to fulfill the aforementioned requirements and (ii) corticomuscular communication, we ...

The forced expiratory volume over 0 75 second (F.E.V.0.75) was measured monthly for 3 years in 28 working ex-miners with pneumoconiosis and for one year in 17 normal laboratory workers. A significant annual cyclical variation of 0-044 litre amplitude was found in the ex-miners, with minimum and maximum values on 2 February and 3 August respectively. In the normal sulbjects the amplitude of the ...

We report the identification of cyclical changes in the orbital period of the eclipsing dwarf novae V2051 Ophiuchi and V4140 Sagitarii. We used sets of white dwarf mideclipse timings to construct observed-minus-calculated diagrams covering, respectively, 25 and 16 years of observations. The V2051 Oph data present cyclical variations that can be fitted by a linear plus sinusoidal function with p...

Cyclical Movements in Unemployment and Informality in Developing Countries This paper analyzes the cyclical properties of worker flows in Brazil and Mexico, two important developing countries with large unregulated or “informal” sectors. It generates three stylized facts that are critical to the accurate modeling of the sector and which suggest the need to rethink the approaches to date. First,...