The human quest for beauty is manifested in numerous body decoration fashions such as makeups, tattoos, and stickers. The ancient “kirigami” art offers a variety of choices for sticker‐type body beautification, whereby with simple cutting, complex networks potential use as microfluidic channels and stretchable materials can be fabricated. Inspired by the fish‐scale pattern and kirigami art, a fish‐like wearable biosensor is designed and fabricated. This highly stretchable, well‐aerated, disposable, and wearable fish sticker enables sweat collection, diagnostics, and motion monitoring. A structure of photonic crystals is integrated in the paper channels for fluorescence enhancement sensing of sweat lactic acid and urea, and a stretchable electronic paper network induced sensitive resistance changes during the movement. The sensor is amenable to a variety of applications, such as personal care and human–machine interaction. The combination of art and sensing also provides a pleasant‐looking solution for both health and beauty.

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To investigate the daytime vs nighttime differences in intraocular pressure (IOP), aqueous humor dynamics, central cornea thickness, and blood pressure among a cohort of healthy volunteers. Methods: Thirty healthy volunteers (mean [SD] age, 57.0 [8.6] years) were enrolled in the study. Individuals underwent 1 daytime visit and 1 nighttime visit for the measurement of aqueous humor dynamics. Measurements included IOP by pneumatonometry, aqueous flow by fluorophotometry, outflow facility by fluorophotometry and tonography, uveoscleral outflow by mathematical calculation, central cornea thickness by pachymetry, and blood pressure by sphygmomanometry. Results between visits were compared by appropriate t test. Dependence of the pneumatonometer probe results on position was tested in enucleated rabbit eyes at set pressures and probe positions. Results: Compared with daytime seated IOP, nighttime seated IOP was reduced by 16%, whereas nighttime supine IOP was increased by 17% (PϽ.001 for both).

Reinforced concrete is widely used in civil engineering due to its outstanding mechanical properties and low cost. However, icing and corrosion on concrete-based facilities such as roads, dams, and bridges often cause safety issues. Superhydrophobic surface with completely water-repellent properties that are inspired by the lotus leaf in nature, has great potential to solve this problem, however, most state-of-the-art and commercial superhydrophobic coatings are expensive and weak in mechanical robustness for large-scale application on concrete. Here, we developed an inexpensive, non-fluorinated, and robust superhydrophobic concrete (S-concrete) coating with a contact angle of 160 ± 1° and sliding angle of 6.5 ± 0.5°. This coating had a high surface mechanical strength and retained superhydrophobicity after blade scratch for several times or sandpaper abrasion for 20 m distance. The robust S-concrete coating also had a good anti-icing ability, a low deicing force, and a high corrosion resistance, which is expected to be applied on roads, buildings, bridges, and many other concrete-based facilities in large scale for anti-icing and anti-corrosion purposes.

The problem of e-waste has forced governments of many countries to develop and implement environmentally sound management practices and collection schemes for E-waste management, with a view to minimize environmental impacts and maximize re-use, recovery and recycling of valuable materials. In developed countries, e-waste management is given high priority countries, while in developing countries, it is exacerbated by completely adopting or replicating the e-waste management of developed countries and several problems including, lack of investment, technological, financial, technically skilled human resources, lack of infrastructure, little available information on the e-waste situation, recovery of valuable materials in small workshops using rudimentary recycling methods, lack of awareness on the impacts of e-waste, absence of appropriate legislations specifically dealing with e-waste, approach and inadequate description of the roles and responsibilities of stakeholders and institutions involved in e-waste management, etc. This chapter provides the definition of e-waste, and presents information on generation of andcomposition of e-waste, collection, treatment, and disposal systems. It also discusses the overview of e-waste collection schemes in different parts of the world with regional focus, and the best current practices in WEEE management applied indeveloped and developing countries. It outlines the illegal e-waste trade and illegal waste disposal practices associated with e-waste fraction. In this chapter, the terms WEEE and E-waste are used synonymously and in accordance to the EU, WEEE Directive.Keywords: e-waste, illegal trade, recovery, collection, treatment, disposal system . IntroductionThe information technology IT industry is an important engine of growth of any country. With the rapid development of technology, manufacturers now produce superior televisions, new and smarter mobile phones, and new computing devices at an increasing rate. People are enjoying what technology brings, surfing the Internet on their smart phones or tablets and watching high-definition movies on their televisions at home. "s more and more electronic products are produced to fulfill the needs of people worldwide, more resources are used to produce these items. Hence, the rapid growth of computing and other information and communication equipment is driving the ever-increasing production of electronic waste ewaste [ ]. The current e-waste encompasses a particularly complex waste flow in terms of the variety of products [ -]. Over the next few years, one billion computers will be obsolete. In , .-. million tons of e-waste was produced across the members of the European Union EU [ ]. "y , the total waste electrical and electronic equipment WEEE is estimated to grow between . % and . % annually, reaching a total of approximately . million tons. The reason is that the number of appliances entering the market every year is increasing in developed and developing countries [ ]. Sales of electronic products in countries suc...

Fifteen patients (24 eyes) were examined. Images showed abnormality with thickness RNFL in the macular area in which

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Low intensity ultrasound can produce various effects on biological materials, such as stimulating enzyme activity, cell growth, biosynthesis, etc., which may improve the efficiency of enhanced biological phosphorus removal (EBPR). We adopt total phosphorus (TP) and dehydrogenase activity (DHA) as indicators to confirm the feasibility of applying low intensity ultrasound in EBPR. Single-factor experiments and orthogonal test were conducted in batch anaerobic/oxic (A/O) process simulation to study the influence of ultrasonic intensity and exposure time in the EBPR process. The results showed that the optimal ultrasonic parameters were 0.2 W/cm2 and 10 min under which condition the TP concentration in the effluent was 35-50% lower than that of the control (without ultrasonic irradiation). Changes of sludge activities after ultrasonic irradiation were examined. The improvement of sludge activity by ultrasound took 4 h after irradiation to reach the peak level, when an increase above 50% of DHA has been achieved by ultrasonic irradiation, and the enhancing effects induced by ultrasound disappeared in 16 h after irradiation. A tentative mechanism of biological phosphorus removal enhancement stimulated by ultrasound was discussed based on these phenomena.