Results 61 to 70 of about 4,803 (181)

Comparison of the effect of Mospilan SP and its active substance on Artemia franciscana

open access: yesVeterinární Medicína
Contaminants formed after the use of pesticides raise concerns for human health and aquatic ecosystems, i. a., due to their high persistence in surface waters and their further migration to other components of the environment.
M Falis, K Benova, M Spalkova, L Leskova
doaj   +1 more source

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

open access: yesPolymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

DEET‐cyclodextrin inclusion complexes for mosquito and tick repellency: Extended repellency time and no zebrafish embryotoxicity

open access: yesPest Management Science, EarlyView.
Hydroxypropyl‐β‐cyclodextrin (HPβCD)–N,N‐diethyl‐meta‐toluamide (DEET) complex extended tick repellency to 168 h. Full protection against Aedes aegypti for 7 h with HPβCD‐DEET. HPβCD reduced DEET release and skin retention significantly. No embryotoxicity observed below 325 mg L−1 in zebrafish model.
Gessyka Rayana Silva Pereira   +10 more
wiley   +1 more source

Lethal Concentration of Ammonia and Tolerable Range of pH in zebrafish (Danio rerio) [PDF]

open access: yesبوم‌شناسی آبزیان, 2017
Increasing in water ammonia is one of the major problems in aquaculture. Nitrogen-containing materials are producing in different ways, including oxidation of nitrogen-containing organic matters such as proteins, manure decomposition and ammonia ...
Eisa Ebrahimi   +2 more
doaj  

Assessing the potential for insecticide cross‐resistance to a novel insecticide in the Colorado potato beetle (Leptinotarsa decemlineata) using phenotypic and transcript expression analysis

open access: yesPest Management Science, EarlyView.
Phenotypic and transcriptional responses to imidacloprid and isocycloseram were examined across U.S. populations of the Colorado potato beetle, showing evidence of phenotypic cross‐resistance alongside population‐level variation in detoxification gene expression.
Emma E. Terris   +6 more
wiley   +1 more source

Determination of LC50 of copper in Litopenaeus vannamei

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2007
We determined the LC50 of copper (as CUSO_4) and it's Maximum Allowable Concentration (MAC) for Litopenaeus vannamei. The study was performed in 2003 for which bioassays were used for acute toxicity tests in a period of 96 hours during which water parameters such as water temperature, pH, dissolved oxygen, hardness, alkalinity were also measured.
Ghorbani, R.   +3 more
openaire   +3 more sources

Effect of Pozzolanic Cement Exposure in Nile Tilapia (Oreochromis niloticus)

open access: yesAquatic Sciences and Engineering
Cement used in structures such as bridges, dams, and retaining walls built on the aquatic ecosystem harms different organisms. The current study reveals the effect of pozzolanic cement (PC) on Nile Tilapia (Oreochromis niloticus).
Akif Er, Mert Minaz, Şevki Kayış
doaj   +1 more source

The Acute Oral Toxicity of Commonly Used Pesticides in Iran, to Honeybees (Apis Mellifera Meda)

open access: yesJournal of Apicultural Science, 2015
The honey bee is credited with approximately 85% of the pollinating activity necessary to supply about one-third of the world’s food supply. Well over 50 major crops depend on these insects for pollination.
Rasuli Farhang   +2 more
doaj   +1 more source

Mortality in an invasive ant does not scale linearly with fipronil exposure

open access: yesPest Management Science, EarlyView.
Increasing fipronil concentration did not linearly increase yellow crazy ant mortality when introduced via horizontal transfer; high doses may limit food sharing. Queen mortality was low, and surviving workers were averse to feeding. Abstract Background Controlling eusocial invasive and other pestiferous insects is difficult.
Peter Yeeles, Angela Strain, Lori Lach
wiley   +1 more source

Isolasi dan Uji Potensi L-Asparaginase dari Rimpang Kunyit Putih (Curcuma mangga Vall) terhadap Leukimia Tipe K562

open access: yesJurnal Kimia Sains dan Aplikasi, 2008
Telah dilakukan penelitian tentang isolasi enzim L-asparaginase yang berasal dari kunyit putih (Curcuma mangga Vall) dan uji aktifitas pada leukimia tipe K562.
Agustina Arpintasari   +2 more
doaj   +1 more source

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