A food-ingested sublethal concentration of thiamethoxam has harmful effects on the stingless bee Melipona scutellaris

Chemosphere ◽  
2021 ◽  
pp. 132461
Author(s):  
Lucas Miotelo ◽  
Ana Luiza Mendes dos Reis ◽  
Annelise Rosa-Fontana ◽  
Jéssica Karina da Silva Pachú ◽  
José Bruno Malaquias ◽  
...  
Author(s):  
Cliver Fernandes Farder-Gomes ◽  
Kenner Morais Fernandes ◽  
Rodrigo Cupertino Bernardes ◽  
Daniel Silva Sena Bastos ◽  
Leandro Licursi de Oliveira ◽  
...  

Author(s):  
D.R. Mattie ◽  
J.W. Fisher

Jet fuels such as JP-4 can be introduced into the environment and come in contact with aquatic biota in several ways. Studies in this laboratory have demonstrated JP-4 toxicity to fish. Benzene is the major constituent of the water soluble fraction of JP-4. The normal surface morphology of bluegill olfactory lamellae was examined in conjunction with electrophysiology experiments. There was no information regarding the ultrastructural and physiological responses of the olfactory epithelium of bluegills to acute benzene exposure.The purpose of this investigation was to determine the effects of benzene on the surface morphology of the nasal rosettes of the bluegill sunfish (Lepomis macrochirus). Bluegills were exposed to a sublethal concentration of 7.7±0.2ppm (+S.E.M.) benzene for five, ten or fourteen days. Nasal rosettes were fixed in 2.5% glutaraldehyde and 2.0% paraformaldehyde in 0.1M cacodylate buffer (pH 7.4) containing 1.25mM calcium chloride. Specimens were processed for scanning electron microscopy.


1983 ◽  
Vol 28 (1) ◽  
pp. 79-79
Author(s):  
Claire B. Ernhart

Planta Medica ◽  
2015 ◽  
Vol 81 (16) ◽  
Author(s):  
PM Kustiawan ◽  
ET Arung ◽  
P Phuwapraisirisan ◽  
S Puthong ◽  
T Palaga ◽  
...  

GIS Business ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. 656-666
Author(s):  
Dr. Entisar Al-Obaidi

Media refers to the channels of communication through which we distribute news, education, movies, music, advertising messages and other information. It includes physical and online newspapers and magazines, television, radio, telephone, the Internet, fax and billboards, are a dominant force in lives of children. Although television is remaining the predominant medium for children and adolescents, the new technologies are become more popular. We have to concern about the potential harmful effects of media "messages and images"; however, the positive and negative effects of media should be recognized. Parents have to establish the plan for all media in family home. Media that are influences on children should be recognized by "schools, policymakers, product advertisers, and entertainment producers".


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