Assessment of the effect of non-ionic surfactant alkylphenol ethoxylates on the penetration of pesticides in fresh produce.

Understanding the penetration behaviour of pesticide active ingredient (AI) in the presence of adjuvants is important in managing application efficacy and minimizing residues. This study investigates the impact of non-ionic surfactant alkylphenol ethoxylates (APEOs) on the penetration of two pesticides, systemic thiabendazole and non-systemic phosmet, in apple and spinach. Surface-enhanced Raman Spectroscopy (SERS) was employed using two different detection methods, namely XZ depth mapping and XY area mapping, in conjunction with liquid Chromatography with tandem mass spectrometry (LC-MS/MS) to investigate the penetration of various pesticide formulations over time.

Student Perceptions of the Usefulness of Core Concepts When Reasoning in Physiology.

Research shows that when students use core concepts to guide their reasoning, they are able to construct more accurate, mechanistic explanations. However, there is scant research exploring student's perceptions of the usefulness of core concepts. Knowing students' perceptions could be influential in encouraging faculty to adopt core concept teaching strategies.

Relationships Between Markers of Iron Status and Hematological Parameters in Patients With Sickle Cell Disease.

Based on the relationship between the intracellular concentration of sickle hemoglobin S (HbS) and the delay that occurs prior to the onset of sickling following deoxygenation, targeting the intracellular HbS concentration is a recognized therapeutic approach for sickle cell disease (SCD). We and others have shown that restricting iron by dietary or pharmacologic means improves hematologic parameters, inflammation, and organ damage in mouse models of SCD. Clinical evidence corroborating these findings is confined to case reports and small case series studies, none of which account for treatment or -thalassemia.

A comparison of role-related physical fitness between British Army trainees and trained soldiers.

British Army basic training (BT) and initial trade training (ITT) enable personnel to develop role-related physical capability to perform in-service job-roles. The study aimed to compare physical performance of trainees (completing ITT) and trained soldiers, on a series of gym-based fitness tests and representative military tasks. A total of 316 British Army personnel [68 trainees (63 men: 22 ± 3 years, 71.

Dorsal root ganglion toxicity after AAV intra-CSF delivery of a RNAi expression construct into non-human primates and mice.

Dorsal root ganglion (DRG) toxicity has been consistently reported as a potential safety concern after delivery of adeno-associated viruses (AAVs) containing gene-replacement vectors but has yet to be reported for RNAi-based vectors. Here, we report DRG toxicity after AAV intra-CSF delivery of an RNAi expression construct-artificial microRNA targeting superoxide dismutase 1 (SOD1)-in non-human primates (NHPs) and provide evidence that this can be recapitulated within mice. Histopathology evaluation showed that NHPs and mice develop DRG toxicity after AAV delivery, including DRG neuron degeneration and necrosis and nerve-fiber degeneration that were associated with increases in cerebrospinal fluid (CSF) and serum phosphorylated neurofilament heavy chain (pNF-H).