this research project has been conducted to analyze the trend of changes in marital interactions, conflict resolution styles and marital quality based on the marriage age and marriage duration among the married men and women in qazvin city. the research method is descriptive and trend analysis. 302 married people (151 women and 151 men) from five districts of qazvin were selected using the volu...

Good housekeeping maintains a healthy liver S nider et al. report that differential expression of two key metabolic enzymes may explain why some people are more susceptible to liver damage. Some forms of liver disease, particularly steatohepatitis, are marked by the formation of misfolded protein aggregates called Mallory-Denk bodies (MDBs). Not all patients display these aggregates, however, a...

A use-dilution procedure and screening method are proposed to aid the hospital bacteriologist in selecting the most effective disinfectants. Sixteen disinfectants were tested with and without organic material on six different organisms. Sporadic results usually obtained with quaternaries tested by the procedure of the Association of Official Agricultural Chemists (AOAC) were eliminated by the m...

intense investigation into the causes of aging, molecular mechanisms governing cellular longevity remain elusive, yet some possibilities are coming into focus [1,2]. It has become clear from many studies utilizing simple model systems that the aging process is multifarious and certainly involves a combination of genetic and stochastic mechanisms. The discovery of single gene mutations that infl...

I n the Western world the role of air pollution in the initiation of respiratory disease in children is contentious [1]. There is good evidence that air pollution can trigger symptoms in susceptible children but its contribution to the pathogenesis of childhood respiratory disorders, such as asthma, remains unclear. There has been considerable interest in traffic-related pollutants and studies ...

HOUSEKEEPING GENES are constitutively expressed to maintain cellular function. As such, they are presumed to produce the minimally essential transcripts necessary for normal cellular physiology. With the advent of microarray technology, it has recently become possible to identify at least the “starter set” of housekeeping genes, as exemplified by the work of Velculescu et al. (2), as well as by...