Neurons in primary visual cortex (V1) display substantial orientation selectivity even in species where V1 lacks an orientation map, such as in mice and rats. The mechanism underlying orientation selectivity in V1 with such a salt-and-pepper organization is unknown; it is unclear whether a connectivity that depends on feature similarity is required, or a random connectivity suffices. Here we ar...

(1) Let F , F1, F2 be finite sequences of elements of R and given r1, r2. If F1 = 〈r1〉 F or F1 = F a 〈r1〉 and if F2 = 〈r2〉 F or F2 = F a 〈r2〉, then ∑(F1−F2) = r1− r2. (2) Let F1, F2 be finite sequences of elements of R. If lenF1 = lenF2, then len(F1 +F2) = lenF1 and len(F1−F2) = lenF1 and ∑(F1 +F2) = ∑F1 +∑F2 and ∑(F1−F2) = ∑F1−∑F2. (3) Let F1, F2 be finite sequences of elements of R. If lenF1 ...

The state of Amapá within the Amazon biome has a high complexity ecosystems formed by forests, savannas, seasonally flooded vegetation, mangroves, and different land uses. present research aimed to map vegetation from phenological behavior Sentinel-1 time series, which advantage not having atmospheric interference cloud cover. Furthermore, study compared three sets images (vertical–vertical co-...

In this paper F1 denotes a non empty finite topology space and A, B, C denote subsets of F1. Let us consider F1. One can check that ∅(F1) is connected. We now state two propositions: (1) For all subsets A, B of F1 holds (A ∪ B) b = A ∪ B. (2) (∅(F1)) b = ∅. Let us consider F1. Observe that (∅(F1)) b is empty. Next we state the proposition (3) Let A be a subset of F1. Suppose that for all subset...