scholarly journals Novel Cellular and Molecular Interactions During Limb Development, Revealed from Studies on the Split Hand Foot Congenital Malformation

10.5772/60402 ◽  
2015 ◽  
Author(s):  
Daniele Conte ◽  
Luisa Guerrini ◽  
Giorgio R. Merlo
Keyword(s):  
Congenital Malformation ◽  
Molecular Interactions ◽  
Limb Development

Rotary Beveling for In Situ Thin-Section Microscopy of Cell Cultures

1981 ◽  
Vol 39 ◽  
pp. 550-551
Author(s):  
Dean A. Handley ◽  
Jack T. Alexander ◽  
Shu Chien
Keyword(s):  
Cell Growth ◽  
Cell Cultures ◽  
Molecular Interactions ◽  
Convenient Method ◽  
Petri Dish ◽  
Simple Method ◽  
Thin Section Microscopy ◽  
Thin Sectioning ◽  
Organic Fluids

In situ preparation of cell cultures for ultrastructural investigations is a convenient method by which fixation, dehydration and embedment are carried out in the culture petri dish. The in situ method offers the advantage of preserving the native orientation of cell-cell interactions, junctional regions and overlapping configurations. In order to section after embedment, the petri dish is usually separated from the polymerized resin by either differential cryo-contraction or solvation in organic fluids. The remaining resin block must be re-embedded before sectioning. Although removal of the petri dish may not disrupt the native cellular geometry, it does sacrifice what is now recognized as an important characteristic of cell growth: cell-substratum molecular interactions. To preserve the topographic cell-substratum relationship, we developed a simple method of tapered rotary beveling to reduce the petri dish thickness to a dimension suitable for direct thin sectioning.

Fluorescence of BODIPY Dyes in Gas Phase at near Ambient Conditions

2020 ◽  
Author(s):  
Kseniya A. Mariewskaya ◽  
Denis Larkin ◽  
Yuri Samoilichenko ◽  
Vladimir Korshun ◽  
Alex Ustinov
Keyword(s):  
Gas Phase ◽  
Molecular Interactions ◽  
Atmospheric Pressure ◽  
Fluorescence Spectra ◽  
Visible Range ◽  
Intrinsic Properties ◽  
Ambient Conditions ◽  
Ideal Model ◽  
Molecular Fluorescence ◽  
Tesla Coil

Molecular fluorescence is a phenomenon that is usually observed in condensed phase. It is strongly affected by molecular interactions. The study of fluorescence spectra in the gas phase can provide a nearly-ideal model for the evaluation of intrinsic properties of the fluorophores. Unfortunately, most conventional fluorophores are not volatile enough to allow study of their fluorescence in the gas phase. Here we report very bright gas phase fluorescence of simple BODIPY dyes that can be readily observed at atmospheric pressure using conventional fluorescence instrumentation. To our knowledge, this is the first example of visible range gas phase fluorescence at near ambient conditions. Evaporation of the dye in vacuum allowed us to demonstrate organic molecular electroluminescence in gas discharge excited by electric field produced by a Tesla coil.

CLINICAL AND PARA-CLINICAL CHARACTERISTICS OF SICK NEWBORN BABIES TREATED AT PEDIATRIC DEPARTMENT OF HUE UNIVERSITY HOSPITAL

2011 ◽  
pp. 112-117
Author(s):  
Thi Kieu Nhi Nguyen
Keyword(s):  
Respiratory Distress ◽  
Congenital Malformation ◽  
Clinical Characteristics ◽  
Descriptive Study ◽  
Neonatal Unit ◽  
University Hospital ◽  
Pediatric Department ◽  
Sick Newborn ◽  
Observational Descriptive Study

Objectives: 1. Describe neonatal classification of WHO. 2. Identify some principal clinical and paraclinical signs of term, preterm, post term babies. Patients and method: an observational descriptive study of 233 newborns hospitalized in neonatal unit at Hue university‘ s hospital was done during 12 months from 01/01/2009 to 31/12/2009 for describing neonatal classification and identifying principal clinical and paraclinical signs. Results: Premature (16.74%); Term babies (45.5%); Post term (37.76%); Premature: asphyxia (43.59%), hypothermia (25.64%), vomit (30.77%), jaundice (61.54%), congenital malformation (17.95%); CRP > 10mg/l (53.85%); anemia Hb < 15g/dl (12.82%). Term babies: poor feeding (21.7%); fever (24.53%); CRP > 10mg/l (53.77%); Hyperleucocytes/ Leucopenia (35.85%). Post term: respiratory distress (34%); lethargy (29.55%); vomit (26.14%); polycuthemia (1.14%); hypoglycemia (22.73%). Conclusion: each of neonatal type classified by WHO presente different clinical and paraclinical. Signs. The purpose of this research is to help to treat neonatal pathology more effectively.

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