Neutron crystallography provides direct visual evidence of the atomic positions of deuterium-exchanged H atoms, enabling the accurate determination of the protonation/deuteration state of hydrated biomolecules. Comparison of two neutron structures of hemoglobins, human deoxyhemoglobin (T state) and equine cyanomethemoglobin (R state), offers a direct observation of histidine residues that are l...

COVID-19 pandemisinin beraberinde getirdiği kısıtlamalar sebebiyle temel ihtiyaçlara olan ilginin arttığı, bu sebeple de özellikle gıda işletmelerinin performans açısından etkilendiği düşünülmektedir. Bu çalışmada Borsa İstanbul Gıda, İçecek (XGIDA) endeksinde bulunan işletmelerin pandemi dönemindeki finansal açıdan performansları değerlendirilmiştir. Literatürde sürecinde işletmelerinde henüz ...

The article considers the possibilities of applying ILAC–G19:06/2022 Manual (hereinafter referred to as Manual) in forensic activities, which presents specifics accreditation organizations required by GOST ISO/IEC 17025-2019 “General requirements for competence testing and calibration laboratories”. following scientific methods have been used study: dialectical, observation, description, compar...

Article history: Received 2 March 2015 Received in revised form 19 May 2015 Accepted 26 May 2015 Available online 9 June 2015 Wecombine two concepts of informed trading – contrarian trades and stealth trading – to develop proxies for the probability of informed trading. These proxies are used to test the link between informed trading and adverse selection asmeasuredbybid–ask spreads and stock i...

We find that market reactions to an analyst’s earnings forecasts are weaker when conditioned on the number of prior sell recommendations that the analyst makes for other firms that he follows. This effect is most prominent in periods of high market sentiment (e.g., the 1997-2001 period) and is stronger for glamour firms. This effect does not arise from sell recommendations being a proxy for low...

Given a financial network of liabilities, we consider the following question: which agent’s potential default would implicate the most number of agents in the network structure? Simply comparing each agent’s total debt completely ignores the structure of the network. For propagation effects of a potential default, owing to a creditor who does not owe anybody and owing to a creditor who is heavi...