If (A,B) and (A′,B′) are co-t-structures of a triangulated category, then (A′,B′) is called intermediate if A ⊆ A′ ⊆ ΣA. Our main results show that intermediate co-t-structures are in bijection with two-term silting subcategories, and also with support τ -tilting subcategories under some assumptions. We also show that support τ -tilting subcategories are in bijection with certain finitely gener...

This report describes a significant increase in the prevalence of hookworm infection in an area of Haiti where intestinal parasites are common, but hookworm has not been common. Changing environmental conditions, specifically deforestation and subsequent silting of a local river, have caused periodic flooding with deposition of a layer of sandy loam topsoil and increased soil moisture. We specu...

The sluicing flume that was designed is less capable of silting up and losing its calibration than its counterparts of standard sharp-crested compound weir design. The laboratory work described here led to a refinement in the design in the form of a short flume set into the lowest section of a compound Crump weir gauging installation. Critical flow occurs near the exit of this flume, and it is ...

We give examples of finite-dimensional algebras A for which the silting objects in K b ( proj - ) are not connected by any sequence (possibly reducible) mutations. The argument is based on fact that mutation preserves invariance under twisting a fixed algebra automorphism, combined with existence spherical modules invariant such twist.

River islands are sandbars formed by scouring and silting. Their evolution is affected by several factors, among which are runoff and sediment discharge. The spatial-temporal evolution of seven river islands in the Nanjing Section of the Yangtze River of China was examined using TM (Thematic Mapper) and ETM (Enhanced Thematic Mapper)+ images from 1985 to 2015 at five year intervals. The followi...

Water reservoirs play a unique role in determining the mechanism of their impact on groundwater. The goal our study was to develop modern option an and indicator scheme assess reservoirs' groundwaters. For this purpose, methods mathematical statistics stochastic hydrology were used. Different types with different durations exploitation selected as objects. As per updated mechanism, filtration r...