Severe abdominal distention due to ovarian cysts in a parrot fish .

In autumn of 2019 a three years old female parrot fish was referred to the veterinary hospital for diagnosis and treatment. The prominent symptom was inappetence and a large mass or unilateral distention in the abdominal cavity. Ultrasonography and radiology imaging with contrast media were done to evaluate the abdominal cavity.

Dilution of PAHs loadings of particulate matter in air, dust and rivers in urban areas: A comparative study (Tehran megacity, Iran and city of Tübingen, SW-Germany).

PAHs (polycyclic aromatic hydrocarbons) in urban areas are usually bound to particles. Concentrations are different in different compartments (airborne particles, street dust, suspended sediments in rivers and channels). This study follows concentrations of PAHs from particles in air to street dust and finally suspended sediments in the city of Tehran, Iran compared to Tübingen, Germany.

Aliphatic hydrocarbons in urban runoff sediments: a case study from the megacity of Tehran, Iran.

Urban runoff is known as an important contributor to diffuse a wide range of pollutants to receiving environments. Hydrocarbons are common contaminants in runoff mainly transported coupled to suspended particles and sediments. The aim of the study was to investigate the distribution and sources of Aliphatics in the sediments of Tehran's runoff drainage network.

Matrix Solid-Phase Dispersion Based on Carbon Nanotube Coupled with Dispersive Liquid-Liquid Microextraction for Determination of Organochlorine Pesticides in Soil.

The presented article describes the methodology and results of investigating the capability of multi-walled carbon nanotube as sorbent in an efficient extraction method for determination of organochlorine pesticides, α-BHC, β-BHC, γ-BHC, heptachlor, endrin, aldrin, 4,4'-DDD, 4,4'-DDE and 4,4'-DDT, in soil media. Matrix solid-phase dispersion was optimized for extraction from small amounts of soil samples and the resulting extracts were pre-concentrated using dispersive liquid-liquid microextraction. The most important experimental parameters of both extraction procedures were studied and the optimum conditions for simultaneous analysis of the target analytes were determined.

A case of conjoined twins (thoraco-omphalopygopagus tribrachius tetrapus) in lamb.

Nearly completed conjoined or fused symmetrical twins are generally called diplopagus. Sheep conjoined twins have been reported less than cow. An apparently female conjoined twin lambs was examined based on external and internal features.