Barely Significant

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Compared with the FC without fibers, the proportion of the small pores with diameters below 400 μm increased significantly as the fiber mass fraction increased, and the proportion of large pores with diameters above 400 μm showed a decreasing trend, indicating that the appropriate fiber mass fraction effectively alleviated the phenomenon of water secretion and segregation and improved the compactness of the hardened FC.
It is noteworthy from Table 3 that coefficients are somewhat statistically significant and in most cases have the expected signs according to the priori economic criteria: (i) self-regional area characteristics and material deprivation factors, when significant (Mediterranean and unemployment, but not North, “foral” or the percentage of population that is at risk of poverty), have a clear positive effect on suicides, (ii) the urban-rural pattern is obtained (through density, being about 2 points higher), (ii) social isolation, has the reverse expected sign (our empirical results indicate that it would reduce the number of suicides by around 7 percent).