Clone 1 is shown to have significantly different melanin content and recovery rate from cryopreservation. This paper reports the ability of DEP to differentiate between two malignant cells of the same origin. Different DEP responses of the two clones could be linked to their melanin content. (C) 2010 American Institute of Physics. [doi:10.1063/1.3447702]“
“Objective: To determine if closing the tonsil fossa after tonsillectomy leads to less pain and bleeding.
Study design: Interventional, Randomized, Single Blind, Active Control, Single Group
Assignment, Safety/Efficacy Study. Follow-up: 2 months.
Methods: Generalized Estimating Equations (GEE) analyzed effects of tonsillar pillar closure, surgeon experience tend interaction on outcomes.
Setting: Primarily academic tertiary care referral center, institutional practice, primarily children, see more both ambulatory and hospitalized care.
Subjects: 763 subjects (age 8-264 months) undergoing tonsillectomy.
Exclusions: suspected malignancy or active peritonsillar abscess. At the discretion of the attending surgeon, patients MAPK inhibitor undergoing tonsillectomy during the 4 year study period were offered participation. A computer selected the side closed. 131 subjects withdrew (complete lack of follow-up information) after the first
72 h.
Intervention: 3-0 chromic sutures on tapered needles to close one tonsillar fossa. The subject was not told which side was closed.
Main outcome measures: postoperative bleeding (at any time) and pain reported
was sought on days 1, 7, 14, 21, and 28.
Results: Closure of the tonsillar fossa did not change the risk of bleeding. Closing the tonsillar fossa had a 40% increase in the odds ratio of postoperative pain. In the tonsillar fossa sides left open, greater surgeon experience decreased the risk of bleeding. In closed sides, enriched surgeon experience increased the risk of bleeding (p < .0.05).
Conclusions: Suture closure of the tonsillar fossa after tonsillectomy does not reduce the risk of bleeding. Additionally, closing the tonsillar fossa increased postoperative pain.
Level of evidence: 1b (individual randomized controlled trial). (C) 2012 Elsevier SBE-β-CD solubility dmso Ireland Ltd. All rights reserved.”
“Progress in microelectrode-based technologies has facilitated the development of sophisticated methods for manipulating and separating cells, bacteria, and other bioparticles. For many of these various applications, the theoretical modeling of the electrical response of compartmentalized particles to an external field is important. In this paper we address the analysis of the interaction between cells immersed in rf fields. We use an integral formulation of the problem derived from a consideration of the charge densities induced at the interfaces of the particle compartments. The numerical solution by a boundary element technique allows characterization of their dielectric properties.