Working environment in underground coal mine is harsh, and gas drainage pipelines are vulnerable to collision, coal falling and Hammocks other injuries, resulting in gas leakage.When a large amount of air in tunnel enters pipe network system, the concentration of gas drainage in pipe network may be much lower than the concentration at the drilling
This study presents the proximate and mineral composition of <em>Peperomia</em> <em>pellucida</em> L., an underexploited weed plant in Malaysia.Proximate analysis was performed using standard AOAC methods and mineral contents were determined using atomic absorption spectrometry.The results indicated <em>Peperomia</e
Fertilisation with nutrient optimisation has in Sweden resulted in large increases in volume growth in young stands of Norway spruce.There are, however, environmental concerns about repeated fertilisation and one is the risk of nutrient leakage to ground water resources and aquatic ecosystems after clear-cutting of such forests.The present study fo
Believing in conspiracy theories is a major problem, especially in the face of a pandemic, as these constitute a significant obstacle to public health policies, like the use of masks and vaccination.Indeed, during the COVID-19 pandemic, several ungrounded explanations regarding the origin of the virus or the effects of vaccinations have been rising
A survey is made of the taxonomic literature on Radial Bearing South American rattlesnakes (genus Crotalus, family Viperidae).Two main areas are emphasized: the attribution of the names proposed in the eighteenth century by Linnaeus and Laurenti, and the current scheme of division in subspecies.The attribution of names is examined based on the orig