Asymmetric Supercapacitors Pyrene-4,5,9,10-tetraone (PYT) molecules are noncovalently combined with two different types of graphene (GN and LO). The electrochemical performance the PYT/GN composites is found to be significantly better than LO-based composites. When matched an annealed Ti3C2Tx MXene anode, assembled asymmetric device (PYT/GN 4–5//A-Ti3C2Tx) delivers outstanding energy density 18...

Much effort has been devoted to the development of efficient asymmetric synthetic methods for the preparation of enantiomerically enriched compounds.1,2 Among various methods for the enantiomerically selective synthesis of chiral organic compounds from prochiral precursors, enantioselective catalytic hydrogenation of dehydro precursors has been extensively developed.3 In fact, asymmetric hydrog...

Asymmetric cell division generates daughter cells with different developmental fates. In Drosophila neuroblasts, asymmetric divisions are characterized by (1) a difference in size between the two daughter cells and (2) an asymmetric distribution of cell fate determinants, including Prospero and Numb, between the two daughter cells. In embryonic neuroblasts, the asymmetric localization of cell f...

purpose: to report a case of unilateral severe visual loss and bilateral optic disc cupping secondary to brain metastasis of bronchogenic carcinoma patient and findings: a 48 year-old woman presented with severe visual loss of left eye without redness or pain or any systemic findings .clinical findings included decreased visual acuity of left eye to 4 m cf and (+3) positive marcus-gunn reflex ....

We study the approximate recovery problem under noise: Given corrupted 1-bit measurements of the form sign(w∗ · xi), recover a vector w with a small 0/1 loss w.r.t. w∗ ∈ R. In learning theory, this is known as the problem of learning halfspaces with noise, and in signal processing, as 1bit compressed sensing, in which there is an additional assumption that w∗ is t-sparse. Direct formulations of...

Both equilibrium and nonequilibrium factors influence the efficacy of pharmaceutical agents that target intermediate states of biochemical reactions. We explored the intermediate state inhibition of gp41, part of the HIV-1 envelope glycoprotein complex (Env) that promotes viral entry through membrane fusion. This process involves a series of gp41 conformational changes coordinated by Env intera...

Organocatalysis, the catalysis with low-molecular weight catalysts where a metal is not part of the catalytic principle, can be as efficient and selective as metalor biocatalysis. Important discoveries in this area include novel Lewis base-catalyzed enantioselective processes and, more recently, simple Brønsted acid organocatalysts that rival the efficiency of traditional metal-based asymmetric...

Asymmetric spike patterns are constructed for the two-component Schnakenburg reactiondiffusion system in the singularly perturbed limit of a small diffusivity of one of the components. For a pattern with k spikes, the construction yields k1 spikes that have a common small amplitude and k2 = k − k1 spikes that have a common large amplitude. A k-spike asymmetric equilibrium solution is obtained f...

Synthesis of enantiomerically pure isoxazolidine via an asymmetric 1,3- dipolar cycloaddition reaction of nitrone with electron-deficient dipolarophile was described. The process occurs at room temperature in aqueous ethanol as a green solvent and in the presence of a bidendate bis(imine)–Cu(II)triflate complex as catalyst. The reaction mechanism is discussed on the basis of the assignment of t...