We have studied the mineral poldervaartite CaCa[SiO3(OH)(OH)] which forms a series with its manganese analogue olmiite CaMn[SiO3(OH)](OH) using a range of techniques including scanning electron microscopy, thermogravimetric analysis, Raman and infrared spectroscopy. Chemical analysis shows the mineral is reasonably pure and contains only calcium and manganese with low amounts of Al and F. Therm...

objective(s) the effect of testosterone on anxiety-like behaviors has been the subject of some studies. there is evidence that testosterone modulates anxiety via gaba (gama aminobutyric acid) and gabaergic system. the involvement of gabac receptors in those effects of testosterone on anxiety-like behaviors of the rats was investigated in the present study. materials and methods a group of rats ...

Emergency agencies (EA) rely on inter-agency approaches to information management during disasters. EA have shown a significant interest in the use of cloud-based social media such as Twitter and Facebook for crowd-sourcing and distribution of disaster information. While the intentions are clear, the question of what are its major challenges are not. EA have a need to recognise the challenges i...

Metabotropic g -aminobutyric acid (GABA) receptors were studied in amphibian retinal ganglion cells using whole cell current and voltage clamp techniques. The aim was to identify the types of receptor present and their mechanisms of action and modulation. Previous results indicated that ganglion cells possess two ionotropic GABA receptors: GABA A R and GABA C R. This study demonstrates that the...

Dalam dunia konstruksi ada banyak faktor yang dapat mempengaruhi keberhasilan suatu proyek pembangunan, salah satunya adalah produktivitas tenaga kerja. Salah satu cara digunakan untuk mengukur kerja parameter LUR (Labor Utilitation Rate) dari setiap pekerja. Pada masa pandemi ini terdapat beberapa para pekerja di antara lain usia, pengalaman kerja, tingkat pendidikan, kesesuaian upah, tanggung...