objectives: feeding is an essential function which affects quality of life of the intellectually disabled (id) persons. approximately 80% of the severe and profound mentally retarded population have some feeding difficulties. this study aimed to determine the prevalence of feeding problems in children with id. methods: in this cross-sectional descriptive study, 144 individuals with intellectual...

introduction: the incidence of malnutrition in hospitalized patients is reported to be high. in particular, patients with esophageal cancer are prone to malnutrition, due to preoperative digestive system dysfunctions and short-term non-oral feeding postoperatively. selection of an appropriate method for feeding in the postoperative period is important in these patients.   materials and methods:...

The current study was conducted to evaluate effects of sequential or wet feeding programs subsequent to and early meal feeding regime on performance, carcass characteristics and humoral immunity in broiler chicks. 192 Ross 308 chicks (seven-day old) were allocated to four treatments at four replicates (12 chicks per plot) based on a Completely Randomized Design. Treatments were included: contro...

Summer mortality and morbidity are serious environment-related problems in cultured sea cucumbers (Apostichopus japonicus). Air exposure probably worsens the impact of high temperature on cucumbers. In this present study, two laboratory experiments were designed to investigate effects artificial reefs mortality, morbidity, crawling, feeding, adhesion behaviors small (~1 g wet body weight) after...

Hippocampal place cells are active when the rat is at certain locations. The sequence of these active place cells is known to be rapidly replayed during sharp-wave-ripple events in the EEG. In this issue of Neuron, a study by Gupta et al. challenges previous notions that the replayed trajectories are solely a passive echo of past episodes. Rather, replay might also be an active process construc...

Place cells are a fundamental component of the rodent navigational system. One intriguing implication of place cells is that humans, by extension, have "map-like" (or GPS-like) knowledge that we use to represent space. Here, we review both behavioral and neural studies of human navigation, suggesting that how we process visual information forms a critical component of how we represent space. Th...

Attractor neural network theory has been proposed as a theory for long-term memory. Recent studies of hippocampal place cells, including a study by Leutgeb et al. in this issue of Neuron, address the potential role of attractor dynamics in the formation of hippocampal representations of spatial maps.

The identification of 'place cells' in the hippocampus has suggested a special role for this brain structure in spatial mapping, but other studies have indicated a more general role in memory. New findings on place cells point the way towards a reconciliation of the mapping and memory views.

This paper shows how to stably merge two sequences A and B of sizes m and n, m n, respectively, with O…m ‡ n† assignments, O…m log…n=m ‡ 1†† comparisons and using only a constant amount of additional space. This result matches all known lower bounds and closes an open problem posed by Dudzinski and Dydek in 1981. Our algorithm is based on the unstable algorithm of Mannila and Ukkonen. All techn...