Urea has a critical role in urinary concentration. Mice lacking the inner medullary collecting duct (IMCD) urea transporter A1 (UT-A1) and urea transporter A3 (UT-A3) have very low levels of urea permeability and are unable to concentrate urine. To investigate the role of UT-A1 in the concentration of urine, we transgenically expressed UT-A1 in knockout mice lacking UT-A1 and UT-A3 using a cons...

Let A1,…,Am be families of k-subsets an n-set. Suppose that one cannot choose pairwise disjoint edges from s+1 distinct families. Subject to this condition we investigate the maximum |A1|+…+|Am|. Note subcase m=s+1, A1=…=Am is Erdős Matching Conjecture, most important open problems in extremal set theory. We provide some upper bounds, a general conjecture and its solution for range n≥4k2s.

It is known that, due to the fact that L1,∞ not a Banach space, if (Tj)j sequence of bounded operators so thatTj:L1⟶L1,∞, with norm less than or equal ||Tj|| and ∑j||Tj||<∞, nothing can be said about operator T=∑jTj. This origin many difficult open problems. However, we assume thatTj:L1(u)⟶L1,∞(u),∀u∈A1, φ(||u||A1)||Tj||, where φ nondecreasing function A1 Muckenhoupt class weights, then prove e...

The combustion quality and energy content of Jet fuel are important to characteristics. There some essential performance characteristics include density, flash point, freezing kinematic viscosity at -20o C, smoke distillation temperatures should be detected controlled. In this study, an experimental investigation was performed in order determine the effects polylactic acid, tetrahydrofuran, A1 ...

background: celiac disease is one of the malabsorption syndromes leads to growth and development retardation in children. there is no test lonely can definitely diagnose celiac; however, the collection of clinical findings, serologic tests, intestinal biopsy, and response to treatment may diagnose it. although diagnostic value is variable in different studies, they are used a non-invasive and a...

phospholipase a1 is known as an effective catalyst for hydrolysis of various phospholipids in enzymatic vegetable oil degumming. immobilization is one of the most efficient strategies to improve its activity, recovery and functional properties. in this study, chitosan-co-polyethylene oxide (90:10) nanofibrous mat was successfully fabricated and modified with atmospheric plasma at different time...