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The objective of this study was to compare heart rate, blood pressure, and lactic acid level with different recovery methods after having maximal exercise to provide reliable data regarding efficient recovery methods. Heart rate, blood pressure, and lactic acid level were continuously recorded for 30min at 5-min intervals during a recovery period after performing a maximal exercise test based on the Bruce-protocol. Study subjects were 36 healthy men in the 20s. They were randomly assigned to a passive recovery group ($\mathrm{\text{PRG}}=12$ people), a sling exercise group ($\mathrm{\text{SRG}}=12$ people), and a sling exercise with whole-body vibration group ($\mathrm{\text{SWRG}}=12$ people). One-way ANOVA was conducted to compare the recovery effects by using SPSS 18.0 Korea. The statistical significance was accepted at $p<0.05$. Our results revealed that SWRG showed significantly faster heart rate recovery than SRG. Systolic and diastolic blood pressure tended to decrease more in the combined group than the PRG. Thirdly, the lactic acid level decreased to a lower level in the combined group than the PRG.

Antimony-doped tin dioxide (ATO)-coated TiO₂ (TiO₂@ATO) composite was synthesized by a polymeric precursor method with lactic acid as the chelating agent. The structural and morphological characterizations of the as-fabricatied TiO₂@ATO composite were investigated by XRD, FTIR, SEM, TEM and XPS. The resistivity was also examined by electrical resistance measurements. The theoretical calculations were introduced for elucidating the change of bandgap from the microscopic level. The results showed that the lowest resistivity of TiO₂@ATO composite they could be achieved was 1.69 $\mathrm{\Omega }\cdot \mathrm{\text{cm}}$. TiO₂@ATO composite possessed a core–shell structure with the ATO shell thickness of 13–16nm. The as-prepared ATO nanoparticles were in rutile phase and with 4.3–7.0nm in diameter (calcinated at 550^∘C). The ATO grain growth during the calcination process could be viewed as consisting of two stages: the activation energies were calculated to be $3.98\pm 0.14$kJ/mol and $9.90\pm 0.53$kJ/mol, respectively.

The chirality (of Greek χείρ, ch[e]ir: hand) is a fundamental symmetry property of three-dimensional objects. Your two hands are not superimposable. They are mirror images of each other. They are therefore chiral (Figure 10.1). The chirality of your right hand can be seen by trying to put it in a glove for your left hand. The same can be seen by trying to put your left hand into a glove for your right hand. The same experience can be done while putting on shoes. Normally you are not comfortable after exchanging the shoe for the left foot with the one for the right foot…

The sun is the only source of renewable energy available to us, if geothermal energy is not taken into account. In the form of radiation (UV light, visible light, infrared light, Section 1.1) it sends us annually 178,000 terawatts (1 TW = 10¹² W; unit of power 1 W = 1 J s^–1 = 859.85 calories per hour), that is to say 15,000 times the energy consumed annually by humanity. Only 0.1% of the solar energy received by planet Earth is converted into plant biomass, i.e. 100 × 10⁹ tons per year which corresponds to ca. 180 × 10⁹ tons per year of CO₂ captured from the atmosphere. This CO₂ returns to the biosphere after the death of the plants. Consumption of fossil carbon emits ca. 35 × 10⁹ tons of CO₂ yearly. Biomass is the material produced by all living organisms (plants, animals, microorganisms, fungi)…

This paper investigated the hydrothermal conversion of glucose to lactic acid using Al(OH)₃ to exploit mild base catalysts. Results showed that the highest lactic acid yield of 17% was obtained from glucose with Al(OH)₃ with 35% water filling at 300°C for 60 s. Thus, this study may provide a promising method for lactic acid synthesis and biomass utilization under hydrothermal conditions with aluminium hydroxide.