The striking differences observed in the electron-induced (EI) mass fragmentationpathways of two isomeric benzodipyrans are attributable to hydrogen bonding in thesemolecules.In the "angular" isomer, 6-butyryl-5-hydroxy-2,2,8,8-tetramethyl-3,4,9,10-tetra-hydro-2H,8H-benzo[1,2-b:3,4-b1]dipyran (2), H-bonding occurs between the Ear Cleaner aromatic O
Honeybees and hive products have long been recognized as excellent bio-indicators, as they provide valuable information on the state of the environments concerned.As yet, however, no tool is capable of contextually assessing the level of pollution of different environmental matrices in order to create maps of areas in which to place hives.In this p
Over time, studies of the vegetation of natural grasslands have evolved from simple observations to rigorous research.Feed obtained from natural meadows without major technological imputations is mediocre in quality, and pastures in a rather advanced state of degradation.The main purpose of this paper is the ecological and fodder evaluation of the
Nowadays, photovoltaic (PV) systems based on centralized topology with a three-level T-type (3LT2) inverter are used to decrease investment costs and increase conversion efficiency.In this topology, the split capacitors of the DC-link can individually connected to PV arrays.Accordingly, DC-link capacitors’ voltage should separately controlle
Air Filters Introduction Snakebite is a neglected tropical disease.Snakebite causes at least 120 000 death each year and it is estimated that there are three times as many amputations.Snakebite survivors are known to suffer from long-term physical and psychological sequelae, but not much is known on the mental health manifestations postsnakebite.Me