The Influence of Plant Landscape Colors on Educational Environments: Effects on College Students’ Quality of Life at Sichuan Vocational College of Health and Rehabilitation in Zigong City, China

This study investigates the influence of plant landscape colors on the quality of life of college students at Sichuan Vocational College of Health and Rehabilitation in Zigong City, China.  The research employed a mixed-methods approach, integrating quantitative data from 328 student questionnaires with qualitative insights from in-depth interviews to investigate the correlation between satisfaction with literacy plant landscape color and students’ physical health, psychological well-being, social relationships, and environmental satisfaction. Statistical investigation utilizing SPSS demonstrated a substantial positive link between the color of literacy plant landscapes and all aspects of quality of life. Linear regression models showed that color psychology, attention restoration, and color harmony are independent predictors of quality of life, notably affecting students' social interactions and environmental perceptions. Qualitative research corroborated these findings, emphasizing the emotional solace and psychological advantages students derive from vibrant, aesthetically pleasing campus green spaces. The findings indicate that augmenting the range and harmony of literacy plant landscape colors can enhance student well-being, facilitate restorative experiences, and cultivate a healthier, more interconnected campus environment. This study provides significant evidence for using color psychology in campus planning to enhance students' physical and emotional well-being

Origin of Hole-Trapping States in Solution-Processed Copper(I) Thiocyanate (CuSCN) and Defect-Healing by I2_2 Doping

Solution-processed copper(I) thiocyanate (CuSCN) typically exhibits low crystallinity with short-range order; the defects result in a high density of trap states that limit the device performance. Despite the extensive electronic applications of CuSCN, its defect properties have not been studied in detail. Through X-ray absorption spectroscopy, pristine CuSCN prepared from the standard diethyl sulfide-based recipe is found to contain under-coordinated Cu atoms, pointing to the presence of SCN vacancies. A defect passivation strategy is introduced by adding solid I$_2$ to the processing solution. At small concentrations, the iodine is found to exist as I$^-$ which can substitute for the missing SCN$^-$ ligand, effectively healing the defective sites and restoring the coordination around Cu. Applying I$_2$-doped CuSCN as a p-channel in thin-film transistors shows that the hole mobility increases by more than five times at the optimal doping concentration of 0.5 mol%. Importantly, the on/off current ratio and the subthreshold characteristics also improve as the I$_2$ doping method leads to the defect healing effect while avoiding the creation of detrimental impurity states. An analysis of the capacitance-voltage characteristics corroborates that the trap state density is reduced upon I$_2$ addition. The contact resistance and bias-stress stability of the devices also improve. This work shows a simple and effective route to improve hole transport properties of CuSCN which is applicable to wide-ranging electronic and optoelectronic applications

9-Ethyl-3-(2-methyl­benzo­yl)-9H-carbazole

In the title compound, C22H19NO, the dihedral angle between the benzene ring and the carbazole ring system 77.1 (1)°.. The crystal structure is stabilized by inter­molecular aromatic π–π inter­actions between the benzene ring and the pyrrole ring of the carbazole system of neighbouring mol­ecules [centroid–centroid distance = 3.617 (4) Å]. In addition, the crystal structure exhibits a weak inter­molecular C—H⋯π inter­action

1-[9-Ethyl-6-(2-methyl­benzo­yl)-9H-carbazol-3-yl]ethanone

In the title compound, C24H21NO2, the pendant benzene ring is inclined at a dihedral angle of 86.66 (18)° with respect to the adjacent aromatic ring of the carbozole unit. In the crystal structure, symmetry-related mol­ecules are linked via C—H⋯O and C—H⋯π inter­actions

A new synthetic approach to porphyrin-alpha-diones and a-2,3,12,13-tetraone: building blocks for laterally conjugated porphyrin arrays

We report the first use of the Dess-Martin periodinane (DMP) for the oxidation of an arylamine to an alpha -dione. The methodology is illustrated by the preparation of free-base and metal chelated porphyrin-alpha -diones in up to 52% yield by oxidation of 2-aminoporphyrins with the DMP. We also found that DMP could be used to oxidise a 2,3-diaminoporphyrin to a porphyrin-alpha -dione in good yield with other free-base diaminoporphyrin isomers forming a trans-porphyrintetraone in 20% yield

Enhancement of Learning Achievement and Integrated Science Process Skills Using Science Inquiry Learning Activities of Chemical Reaction Rates

AbstractHigh school students at Ramwittaya Rachamunklapisek School in Thailand in previous years had records of low learning achievement in chemistry, especially in the area of chemical reaction rates. They also had low levels of integrated science process skills due to lack of experience in inquiry activities. This study aimed to improve student's achievement records and integrated science process skills through 12hours of science inquiry activities. Sixty-three grade 11 students at the school participated in the study in second semester of 2011. The paired-sample t-test analysis showed that student's post-achievement score (mean 26.13, SD 6.40) were statistically higher than their pre-achievement score (mean 8.75, SD 2.51) at p-value less than 0.001. They also obtained an average of 74.52% in integrated science process skills (good level). It was found that predict-observe-explain activities effectively engaged students in the first step and throughout the inquiry learning process. Science inquiry activities effectively enhanced student's learning achievements and integrated science process skills