Background: Formaldehyde is one of the most serious air contaminant that can be found everywhere. Some of the source of formaldehyde include product of building materials, decorated materials, cigarette smoke, etc. Aldehydes compounds especially formaldehyde are used as disinfectants for sterilization in different industries. In this study we measured formaldehyde workplace exposure with NIOS...

Fish eosinophilic granular cells are found in the connective tissues of structures associated with external environment. These similar to mammalian mast terms structural and functional characteristics. The cytoplasmic granules these give different staining reactions depending on fixative type. This study aimed determine properties densities Oscar fish (Astronotus ocellatus Agassiz, 1831) intest...

Chromosome information is an important key for taxonomy, phylogeny and genetic in Trifolium plants. Thus, ten Trifolium species namely T. grandiflorum, T. resupinatum, T. dasyurum, T. campestre, T. tomentosum, T. hirtum, T. scabrum, T. lappaceum, T. stellatum, and T. repens were collected from their habitats in Fars province based on their morphologi...

 Background: Human hair can be used as an inexpensive and accessible adsorbent to remove a variety of pollutants from air. Although several studies have been done on removal of formaldehyde from wastewater by human hair, to date no study has investigated using hair to remove formaldehyde from air. Therefore, the aim of this study was to remove formaldehyde from synthetic contaminated a...

The mineral phase in calcified tissues represents an additional factor to be considered during their preservation for ultrastructural analyses. Microwave (MW) irradiation has been shown to facilitate fixative penetration and to improve structural preservation and immunolabeling in a variety of soft tissues. The aim of the present study was to determine whether MW processing could offer similar ...

BACKGROUND Positive patch test reactions to formaldehyde-releasers in patients co-reacting to formaldehyde are often ascribed to formaldehyde allergy. However, the formaldehyde content of patch test materials has not been investigated. OBJECTIVES To demonstrate and quantify free formaldehyde in commercial patch test materials and in prepared aqueous solutions of formaldehyde releasers. MATE...

HeLa cells were exposed to formaldehyde and its metabolic derivatives, methanol, formic acid, and acetaldehyde, to investigate that the toxicity of formaldehyde is not caused by the chemical group. After 1 h of treatment with formaldehyde, mitochondrial assays showed that low concentrations (e.g. 10 μmol/L) of formaldehyde promoted growth of the HeLa cells, while higher concentrations (e.g. ≥62...

background: formaldehyde is one of the most serious air contaminant that can be found everywhere. some of the source of formaldehyde include product of building materials, decorated materials, cigarette smoke, etc. aldehydes compounds especially formaldehyde are used as disinfectants for sterilization in different industries. in this study we measured formaldehyde workplace exposure with niosh ...

Iodine is enriched and stored in the thyroid gland. Due to several factors, the size of the thyroid iodine pool varies both between individuals and within individuals over time. Excess iodine as well as iodine deficiency may promote thyroid cancer. Therefore, knowledge of iodine content and distribution within thyroid cancer tissue is of interest. X-ray fluorescence analysis (XRF) and secondary...

The report which I have the honor of presenting to-night before this society on " The Results of the Application of Special Histological Methods to the Study of Tumors-2 is a continuation of work reported in 19o 5 under the title of " A Contribution to the Classification of Tumors. ''a The results thus far obtained are of unequal value. Some groups of tumors have yielded much of interest, other...