In vivo assessment of oxidative stress, neurotoxicity and histological alterations induction in the marine gastropod Stramonita haemastoma exposed to CrO and AlO nanoparticles.

The increased use of nanoparticles (NPs) is expected to raise their presence in the marine ecosystem, which is considered as the final destination of released NPs. This study investigated the toxicity of CrO (42 nm) and AlO (38 nm) NPs (1, 2.5, and 5 mg/L) on the digestive glands of Stramonita haemastoma for 7, 14, and 28 days by oxidative stress biomarkers, neurotoxicity indicator assessment, and histological study.

The Seeing Science Project: Using Design-Based Research to Develop a Transformative Experience Intervention.

Drawing on transformative experience theory (Pugh, 2011) and in collaboration with high school science teachers, the authors developed an intervention (Seeing Science project) leveraging everyday mobile technology as a tool for integrating in-school and out-of-school experience. Students were instructed to take pictures when they noticed connections to unit content and post these with a caption on a class site. The current study used design-based research methods to revise and evaluate the Seeing Science project over a 2-year period.

Prevalence of mastitis in dairy goat farms in Eastern Algeria.

Aim: This study aimed to investigate mastitis in dairy goat farms through the California mastitis test (CMT) and bacteriological examinations.

Materials And Methods: A total of 845 goats belonging to 18 farms from four regions (Tébessa, Guelma, Souk Ahras, and Skikda) were examined.

Results: Clinical examination of the mammary glands showed that 30/845 (3.