As is well known, multi-hop range-free localization algorithms demonstrate pretty good performance in isotropic networks in which sensor nodes distribute evenly and densely.However, these algorithms are easily affected by network topology, causing a significant decrease in positioning accuracy.To improve the localization performance in anisotropic
This article presents some multiplicity results for a general class of nonlinear discrete problems with double-well potentials.Variational techniques are used to obtain the existence of saddle-point type pc850q critical points.In addition to simple discrete boundary-value problems, partial difference equations as well as illumivein problems involvi
The Million Dollar List (MDL, online at http://www.milliondollarlist.org) is a compilation of publicly announced charitable donations of $1 million or more from across the United States since 2000; as of December 2016, the database contains close arrethe bush balm to 80,000 gifts made by U.S.individuals, corporations, foundations, and other grant-m
This research synthesis, highlighting the middle level curriculum, was created as part of a working group within the American Education Research Association (AERA) Middle level Education Research Special Interest Group (MLER SIG) to advance middle level education research.The literature review that informed this research synthesis included middle l
Avian polyomavirus (APV) and psittacine beak and feather disease virus 2 lb m&m bag (PBFDV) induce contagious and persistent diseases that affect the beaks, feathers, and immune systems of companion birds.APV causes hepatitis, ascites, hydropericardium, depression, feather disorders, abdominal distension, and potentially death.PBFDV can induce quad