Humic substances are routinely applied to creeping bentgrass putting greens during times of stress to improve turf health. Confounding effects of added nutrients and other ingredients make it difficult to separate the effects caused by the organic material from additional effects of the supplemental ingredients. Claims made in advertising and marketing of the effectiveness of humic substance pr...

In previously published electron microscopic studies on the organic substance of enamel, the organic matrix was depicted in thin sections as a meshwork of delicate fibrils.1'"i " If one compares these structures with photographs obtained by the replica method using mineralized enamel, the original relationship between the organic and the inorganic components of the enamel is difficult to recons...

Morphological and histochemical observations were made of the otolith membrane of the macula utriculi in normal guineapigs. The influences of fixatives upon the structure of the otolith membrane were observed with several kinds of fixatives. The histochemical stainings were mainly applied to identify the acid mucopolysaccharides. Several of main findings were as follows: 1) The colloidal substa...

The recovery of dilute populations of stationary phase cells of Escherichia coli was studied using an automatic growth analyser. The addition of 30% supernatant from 2-d-old stationary phase cells of the organism reproducibly shortened the apparent lag times by 22-57.5%, depending on the age of the inoculum. True lag times, as determined by colony counts, of stationary phase cells were reduced ...

The objective of the study is to evaluate the initial content of organic carbon, which is lost in the hydrocarbon generation and catagenesis. It is required for the reliable evaluation of source rock generation potential. The greater the differences between the contemporary and initial values of organic carbon, the greater the maturity of the source rock. Due to the catagenetic consumption of o...

BACKGROUND In this Part II psychiatric disorders coexisting with organic diseases are discussed. "Comorbidity phenomenon" defines the not univocal interrelation between medical illnesses and psychiatric disorders, each other negatively influencing morbidity and mortality. Most severe psychiatric disorders, such as schizophrenia, bipolar disorder and depression, show increased prevalence of card...