Substituting phosphorus and nitrogen in hydroponic fertilizers with a waste derived nutrients solution: pH control strategies to increase substitution ratios.

Hydroponics, despite its potential for efficient crop production, relies heavily on chemical fertilizers derived from nonrenewable resources and thus contributes to environmental burdens and unsustainable use of phosphorus. Integrating hydroponics into a circular phosphorus economy is crucial for mitigating these impacts. This study quantitatively assessed the capacity of filtrates from nitrified biogas digestate (f-NBD), a nutrient solution derived from organic waste, to replace phosphorus and nitrogen in hydroponic chemical nutrient solutions.

Light intensity influences feeding and fecundity of Tetranychus urticae (Acari: Tetranychidae) through the responses of host Cucumis sativus leaves.

We investigated feeding and fecundity of the two-spotted spider mite, Tetranychus urticae (Acari: Tetranychidae), on leaves of cucumber (Cucumis sativus) seedlings that had been acclimatized to different light intensities. Based on these data, we analyzed the relationships between mite performance (feeding and fecundity) and leaf properties. The cucumber seedlings were grown in controlled-environment chambers under different light intensities at a photosynthetic photon flux density of 50, 100, 150, 300, or 450 µmol m s until the first true leaves had expanded.

Growth performances and changes of macronutrient ion concentrations in the culture medium when Euglena gracilis was cultured with nitrified digestate.

We investigated the possibility of using Euglena gracilis to convert digestate from methane fermentation of organic wastes into a medium for soilless crop culture. The growth of E. gracilis cultured with aqueous solutions containing filtrate of raw digestate at 1-30% (v/v) and nitrified digestate at 10-100% (v/v) was examined.

Heat and gas exchanges between plants and atmosphere under microgravity conditions.

Fundamental studies were conducted to develop a facility having an adequate air circulation system for growing healthy plants over a long term under microgravity conditions in space. To clarify the effects of gravity on heat and gas exchanges between plant leaves and the ambient air, surface temperatures and net photosynthetic rates of barley leaves were evaluated at gravity levels of 0.01, 1.

Oozing-type of left ventricular rupture treated under percutaneous cardiopulmonary support without surgical repair.

A 65-year-old man was admitted to the National Defense Medical College Hospital for acute anterolateral myocardial infarction and cardiogenic shock. Emergency coronary angiography demonstrated occlusion of the proximal left anterior descending artery. Primary percutaneous transluminal coronary angioplasty (PTCA) was successfully performed with the support of intra-aortic balloon pumping (IABP) and medical treatment to stabilize the patient's blood pressure.

Fluorescence analysis of biochemical constituents identifies atherosclerotic plaque with a thin fibrous cap.

Vulnerable plaque generally contains a thin fibrous cap, lipid pools, and reduced internal plaque collagen. Arterial fluorescence analysis can differentiate atherosclerotic lesions from normal arteries; however, the contribution of the lipid core to atherosclerotic arterial fluorescence remains controversial. This study aimed to identify lipid core fluorophores and to differentiate the lipid core from normal artery and atheroma.