We prove the conjecture of A.Postnikov that ($mathrm{A}$) the number of regions in the inversion hyperplane arrangement associated with a permutation $w in mathfrak{S}_n$ is at here most the number of elements below $w$ in the Bruhat order, and ($mathrm{B}$) that equality holds if and only if $w$ avoids the patterns $4231$, $35142$, $42513$ and $35
Nutrient-rich, turbid river plumes that il barone wine are common to large lakes and coastal marine ecosystems have been hypothesized to benefit survival of fish during early life stages by increasing food availability and (or) reducing vulnerability to visual predators.However, evidence that river plumes truly benefit the recruitment process remai
Edible insects are a highly nutritious source of protein and are enjoyed by people all over the world.Insects contain various other nutrients and beneficial compounds, such as lipids, vitamins and minerals, chitin, phenolic compounds, and antimicrobial peptides, which contribute to good health.The practice of insect farming is far more resource-eff
Penelitian ini menganalisis bentuk pelayanan publik dalam pemeriksaan keimigrasian serta merumuskan karakter, etika, dan kompetensi petugas imigrasi di Tempat Pemeriksaan Imigrasi (TPI) di Indonesia dalam kerangka profesionalisme.Permasalahan yang timbul adalah terdapat perbedaan pemahaman, perspektif, dan paradigma bentuk pelayanan publik dalam pe
In a rooted tree, protected nodes are neither leaves nor parents of any leaves.They have some practical motivations, e.g., in organizational schemes, security models and social-network models.Protected node profile measures the number of protected nodes with the same distance from the root in rooted trees.For no rooted tree, protected node profile