While there are references to the practice of chemical analysis in ancient Chinese times, the modern system of analytical chemistry was introduced into China in the late 19th century. Thanks to the Chinese chemist Shou Xu, who translated several chemical books from western countries, including two important books on analytical chemistry: Manual of Qualitative Chemical Analysis [1] and Quantitat...

Most analyses of food-sharing behavior invoke complex explanations such as indirect and delayed benefits for sharing via kin selection and reciprocal altruism. However, food sharing can be a more general phenomenon accounted for by more parsimonious, mutualistic explanations. We propose a game theoretical model of a general sharing situation in which food owners share because it is in their own...

Although forsterite (Mg₂SiO₄) possesses good biocompatibility and suitable mechanical properties, the insufficient bioactivity and degradability hinders its further application. In this study, a novel MgO-CaO-SiO₂ system was developed by adding wollastonite (CaSiO₃) into Mg₂SiO₄ to fabricate bone scaffolds via selective laser sintering (SLS). The apatite-forming ability and degradability of the...

Compressed bitmap indexes are used in systems such as Git or Oracle to accelerate queries. They represent sets and often support operations such as unions, intersections, differences, and symmetric differences. Several important systems such as Elasticsearch, Apache Spark, Netflix’s Atlas, LinkedIn’s Pivot, Metamarkets’ Druid, Pilosa, Apache Hive, Apache Tez, Microsoft Visual Studio Team Servic...

This study addresses glume absence in tribe Orcuttieae. In Orcuttia califomica, 0. inaequalis, and 0. viscida, all spikelets possess two glumes except for the terminal spikelet of the inflorescence, which lacks both glumes. In 0. pilosa and Tuctoria greenei the terminal spikelet lacks only the first (proximal) glume, whereas in 0. tenuis, T. fragilis, and T. mucronata both glumes are developed ...

The present study proposes the restructuring of Ologamasiphis genus (family Parasitidae) comprising two subgenera s. and Holzmannia Juvara-Balş, 2002, to have respective elevated level, as well brand-new Juvaria subgenus created within genus. proposed is based on newly described species belonging n. subgen., wit (Juvaria) pilosa sp. silvestris Furthermore, new are described: setosus zelkovae Pe...