We provide a definition of ephemeral multi-persistent modules and prove that the quotient persistent by ones is equivalent to category $\gamma$-sheaves. In case one-dimensional persistence, our agrees with usual one showing observable $\gamma$-sheaves are equivalent. also establish isometry theorems between both endowed their interleaving distance. Finally, we compare convolution distances.

The study of drug smuggling has often taken an organizational perspective whereby the structures how is constituted predominate. Building on a growing body scholarship addressing networked complexities this article considers importance distinct infrastructural arrangements. Its primary focus materiality infrastructures, and social, spatial temporal qualities these configurations overlap with li...

Photography is ultimately concerned with the ephemeral – capturing and preserving transient moments. As a place in constant flux, full of ephemera ephemeral, city has long been an important site for photographers. Those who study are increasingly incorporating photography into their research thanks to changing more accessible technologies epistemological shifts across social sciences. Photograp...

Sustainable river management now encompasses a much wider concept that includes hydromorphological and fluvial habitat studies. In ephemeral streams, the geomorphological characterization of channels is complex due to episodic flows riparian vegetation dynamics. Stream channel survey classification at watershed scale provide basis for conservation, process interpretation, assessing sensitivity ...

With the rapid proliferation of user-generated content available on the Internet, one of the biggest challenges is determining the relevancy of the information shown. The content often comes in two camps: ephemeral or evergreen. Evergreen content such as recipes for carrot cake or intro to data structures frequently don’t change with time, whereas ephemeral content, such as celebrity hot or not...

Explaining how infants learn words is one of the central problems in language acquisition. Learning words requires the ability to recognize them in real time, and spoken word-form recognition is an exceedingly complex skill. Because the speech signal is ephemeral, processing is subject to considerable timepressure. Furthermore, words occur as part of the continuous flow of speech. If words were...

Abstract Flash flood events are common in the Mediterranean basin, because of a combination rugged coastal topography and climatological characteristics. The Balearic Islands flood-prone region with research area, Sóller (Mallorca) being no exception. Between 1900 2000, experienced 48 flash floods 17 categorised as catastrophic. In Sóller, local surface water network comprises ephemeral streams...

The hydroperiod of ephemeral wetlands is often the most important characteristic determining amphibian breeding success, especially for species with long development times. In mesic and wet pine flatwoods of the southeastern United States, ephemeral wetlands were a common landscape feature. Reticulated flatwoods salamanders (Ambystoma bishopi), a federally endangered species, depend exclusively...