Toxicity comparison of atrazine on Eisenia fetida in artificial soil and three natural soils.

Atrazine has been widely used in the world and caused environmental pollution, especially soil pollution. When assessing the toxicity of atrazine in soil, most studies used standardized artificial soils, while few studies focused on the real soil environments. In the present study, three natural soils and artificial soil were selected as test soils to study and compare the toxicities of atrazine to Eisenia fetida.

Workforce Pathway Development: Evaluation of an Educational Seminar to Increase Student Interest in Nuclear Medicine.

Rationale And Objectives: Attracting more students to nuclear medicine is imperative to improving diversity and meeting growing staffing needs. In this study, we implemented a short seminar about nuclear medicine and evaluated its impact on student perceptions of the field.

Materials And Methods: We developed and presented 30-minute "Introduction to Nuclear Medicine" seminars to undergraduate college students and preclinical medical students.

The Radiology Scholars Certificate Program: A Medical Education Learning Tool.

Rationale And Objectives: The Radiology Scholars Certificate Program (RSCP) is an extracurricular program created for preclinical medical students to address disparities in radiology education and exposure during medical school.

Materials And Methods: The RSCP was designed as a year-long program for first- and second-year medical students. The 4 key components of the RSCP are: Exposure to radiology through shadowing, knowledge acquisition through self-paced case-based learning modules, knowledge application in interactive workshops, and completion of a scholarly project.

Ecotoxicity evaluation of azoxystrobin on Eisenia fetida in different soils.

Azoxystrobin, a widely used broad-spectrum strobilurin fungicide, may pose a potential threat in agricultural ecosystems. To assess the ecological risk of azoxystrobin in real soil environments, we performed a study on the toxic effects of azoxystrobin on earthworms (Eisenia fetida) in three different natural soils (fluvo-aquic soil, black soil and red clay soil) and an artificial soil. Acute toxicity of azoxystrobin was determined by filter paper test and soil test.

Controlled-release urea reduced nitrogen leaching and improved nitrogen use efficiency and yield of direct-seeded rice.

The use of controlled-release urea (CRU) has become one of best management practices for increasing crop yield and improving nitrogen (N) use efficiency (NUE). However, the effects of CRU on direct-seeded rice are not well understood while direct-seeding has gradually replaced transplanting due to increasing labor cost and lack of irrigation water. The objective of this two-year field experiment was to compare the effects of the CRU at four rates (120, 180, 240 and 360 kg N ha, CRU1, CRU2, CRU3 and CRU4, respectively) with a conventional urea fertilizer (360 kg N ha; U) and a control (no N fertilizer applied; CK) on yield, biomass, NUE of direct-seeded rice and soil nutrients.

Patient perspectives on compensation for biospecimen donation.

Background: The purpose of this study was to determine whether biospecimen donors believe they should receive compensation. This is the first study to report biospecimen donors' views on compensation and can potentially improve informed consent and recruitment practices.

Methods: Researchers asked patients undergoing surgical removal of tissue to donate biological materials to a biobank; the request was made at their presurgical appointment or in the preoperative clinic of the Emory University Hospital.

Cancer donor preferences for disposition of their biospecimens after biobank closure.

Background: Biobank funding is unstable and biobank administrators are concerned about loss of funding and subsequent biobank closure. Nevertheless, only a minority of biobanks have policies regarding the distribution or destruction of tissue if the biobank were to close. To the authors' knowledge, the current study is the first to report on the preferences of oncology biospecimen donors regarding the handling of their biospecimens in the event of biobank closure.