objective: investigations were carried out to isolate bacteria from saline-alkali soils and determined optimized alkaline protease activity and stability produced by a wild strain of bacillus sp. in submerged fermentation (smf). methods: optimum temperature for enzyme activity in the crude extract was 40 ◦c at a ph between 8.0 and 9.0. the studies on ph stability showed that the enzyme was stab...

DISCONTINUITY CRIT ICAL PERIOD DYNAMIC SYSTEMS THEORY EGO EGOCENTRIC THOUGHT ELECTRA COMPLEX EMOTION ETHOLOGICAL APPROACHES FORMAL OPERATIONS STAGE PREOPERATIONAL STAGE PRIMARY CAREGIVER PRIMARY DRIVES PROXIMODISTAL TREND PSYCHOANALYSIS PSYCHOANALYTIC THEORY PSYCHOSEXUAL STAGES PSYCHOSOCIAL STAGES REACTION FORMATION REDUCTIONISM SCHEMA SECONDARY DRIVE SELF-ACTUALIZATION SENSIT IVE PERIOD SENSOR...

In the title compound, C(13)H(12)N(4)O, the semicarbazone fragment links a benzene and a pyridine ring in the structure. The crystal packing is stabilized by strong inter-molecular N-H⋯O hydrogen bonds, which connect two mol-ecules to form a synthon unit, and by N-H⋯N hydrogen bonds and weak C-H⋯π inter-actions. The mol-ecular conformation is stabil-ized by intra-molecular N-H⋯N and C-H⋯O inter...

This paper aims to analyze the volatility spillover relationship between cryptocurrencies and stablecoins dynamically. Within scope of study, daily closing price data Bitcoin (BTC), Ethereum (ETH), BNB cryptocurrencies, Tether (USDT) USD Coin (USDC) covering period from January 1, 2019 April 6, 2022 was analyzed using Q-VAR model. Our results suggest that cryptocurrency increased during Covid-1...