Non-fullerene acceptors have recently attracted much attention as components of organic solar cells. 1H-indene-1,3(2H)-dione is a key compound for the synthesis end-capping component non-fullerene acceptors. In this communication, an intermediate compound, tert-butyl (E)-3-oxo-2-(3-oxoisobenzofuran-1(3H)-ylidene)butanoate, was prepared by reaction between phthalic anhydride and acetoacetate. Fu...

OBJECTIVES The objectives were to assess acceptors' attitudes toward Sayana® Press as a method and toward the mechanism of community-based distribution by medical and nursing (M/N) students, known locally as "DBCs," in Kinshasa, Democratic Republic of the Congo, and to evaluate the experience of these DBCs. STUDY DESIGN In 2015, surveys were conducted among (1) acceptors of Sayana® Press on t...

We present p-automata, which accept an entire Markovchain as input. Acceptance is determined by solving a se-quence of stochastic weak and weak games. The set oflanguages of Markov chains obtained in this way is closedunder Boolean operations. Language emptiness and con-tainment are equi-solvable, and languages themselves areclosed under bisimulation. A Markov chain (res...

In this paper, we study the concept of accepting grammars within various forms of regulated grammars like programmed grammars, matrix (set) grammars, grammars with regular (set) control, periodically time-variant grammars as variants of grammars controlled by bi-coloured digraphs. We focus on their descriptive capacity. In this way, we continue our studies of accepting grammars 1, 2, 3, 11, 13,...

Probabilistic ω-automata are variants of nondeterministic automata for infinite words where all choices are resolved by probabilistic distributions. Acceptance of an infinite input word requires that the probability for the accepting runs is positive. In this paper, we provide a summary of the fundamental properties of probabilistic ω-automata concerning expressiveness, efficiency, compositiona...

Like a busy dock, the enzyme IscS offers a temporary berth to multiple protein vessels where they can load up with their cargo of sulfur atoms. The sulfur is then incorporated into essential biological structures such as the iron–sulfur clusters that catalyze oxidation–reduction reactions in the electron transport chain. Although the structure of IscS has been known for some time, it was not cl...

Unless we resolve the P vs NP question, we are unable to say whether there is an algorithm (acceptor) that accepts Boolean tautologies in polynomial time and does not accept non-tautologies (with no time restriction). Unless we resolve the co -NP vs NP question, we are unable to say whether there is a proof system that has a polynomial-size proof for every tautology. In such a situation, it is ...

The active layer in a solution processed organic photovoltaic device comprises a light absorbing electron donor semiconductor, typically a polymer, and an electron accepting fullerene acceptor. Although there has been huge effort targeted to optimize the absorbing, energetic, and transport properties of the donor material, fullerenes remain as the exclusive electron acceptor in all high perform...

Influence of water solutions with various pH and electrochemical treatment in cathode position on concentration charge carriers samples Cd x Hg 1-x Te x=0.2-0.3 is investigated. Cathodic cadmium-mercury-tellurium at small density current increases donors, high acceptors are formed. It supposed that hydroxyl groups create centers, introduce interstitial cadmium-mercury-tellurium. At for a long t...

We study a game for recognising formal languages, in which two players with imperfect information need to coordinate on a common decision, given private input words correlated by a finite graph. The players have a joint objective to avoid an inadmissible decision, in spite of the uncertainty induced by the input. We show that the acceptor model based on consensus games characterises context-sen...