Microplastics, which regularly have sizes when you look at the µm to mm range, and made nanomaterials, in particular those that are soluble, such as metal/metal oxide nanoparticles, have to be incore.•The strategy is developed for academic study environments with no usage of specialized equipment for test feed planning, and uses utensils and inexpensive plastic ware belonging towards the standard inventory of ecotoxicological analysis laboratories.Laboratory earth line experiments being usually performed for investigating numerous soil-related procedures. In recent years, the need for utilizing biochar as a soil amendment for ecological and agricultural reasons has increased somewhat. To evaluate the useful effects of biochar, laboratory column experiments is conducted using repacked biochar-amended soil before large-scale biochar application. Biochar is a porous material that may have transient hydrophobicity, and particle density, dimensions, and form very often vary from native soil. These aspects could potentially cause several experimental problems in repacked laboratory articles, including unrealistic hydraulic and solute transport and transformation measurements, spatial difference of biochar content, and error in estimating the repacked biochar-amended earth properties. Consequently, it is necessary to modify standard repacked column packing treatments for biochar-amended soil. In this work, several alterations are described for preparing repacked biochar-amended grounds. The customizations are rinsing and oven-drying biochar, determining the optimum dampness content to attain a homogenous mixture, determining the specified bulk density before line packing, and mixing and packaging under wet conditions. In addition, repacked articles should really be described as their particular inter, intra, and total porosities and pore amount after line packing.•Steps are recommended ahead of packing the repacked biochar-amended soil columns rinsing biochar and pre-determining optimum moisture content and bulk thickness.•Columns are wet-packed in subsections at the optimum dampness content towards the desired bulk thickness. Following packaging, the inter, intra, and complete porosities and pore volume ought to be determined.•These steps will reduce unrealistic transient results, inhibit nonuniform packing and heterogeneity of biochar content, and provide important information for interpreting the performance of biochar-amended media.Ingestion of microplastic particles and fibers is generally reported for aquatic organisms collected on the go. At precisely the same time, just few scientific studies investigate possible ramifications of intake of microplastic materials due to managing dilemmas into the laboratory. Visibility scientific studies, which provide organisms with microplastic fibers via the diet, tend to be a necessary action to evaluate effect thresholds of essential and physical fitness variables of aquatic organisms. On the basis of the limited quantity of researches supplying seafood with fiber-supplemented pellets, the following protocol gifts a method to prepare a diet for seafood this is certainly supplemented with homogeneous dispensed microplastic materials for visibility researches. Produced pellets are appropriate tiny experimental fish, such as sticklebacks (2-5 cm), and may be produced as much as levels of several hundred grms and even few kilograms. The strategy are hepato-pancreatic biliary surgery adjusted to various commercial seafood feeds and microplastic dietary fiber peripheral pathology types due to handbook preparation.•Low-cost, manual preparation of microplastic fibers•Preparation of a pelleted fish diet with consistently distributed fibers•Adaptable to various commercial seafood feeds and microplastic fiber types.Waste to energy (WTE) technologies have emerged as a substitute answer to municipal solid waste management. WTE methods supply significant ecological and economic advantages by transforming waste into obtainable energy, as an element of an integrated solid waste administration (ISWM) strategy. However, earlier studies revealed that setting up an ISWM method considering an individual type of WTE systems will not fundamentally understand optimum learn more advantages. Therefore, optimizing the selection of WTE methods included in a hybrid waste management method could possibly achieve optimum benefits and minimize unfavorable impacts. Nevertheless, such task is challenging as a result of different alternatives and targets, specially those related to the materials and power recovery systems. This short article gift suggestions the methods made use of to build up a systematic optimization framework that identifies the very best group of ISWM methods through mathematical modelling. The techniques range from the processes regarding the founded framework, including base design computations, along with the comprehensive modelling and optimization techniques.•The energy recovery, carbon footprint, and monetary profitability are computed for chosen WTE facilities.•The multi-objective mathematical development is resolved utilising the weighted extensive criterion method (WCCM).•The model is implemented in CPLEX computer software using mathematical program writing language (OPL).In this note, we provide a step-by-step approach of Westerlund and Narayan (WN, 2012, 2015) predictability test making use of COVID-19 and oil price data. That is an essential workout since the WN design details three salient top features of time series information, namely persistency, endogeneity and heteroskedasticity. We consider COVID-19 and oil price information as predictors of stock market returns for four parts of asia to demonstrate the usefulness for the WN (2012, 2015) predictability strategy.