Laiyangosaurus youngi was erected as a saurolophine hadrosaurid on the basis of several cranial elements from the Jingangkou Formation, Wangshi Group, Upper Cretaceous of Laiyang, Shandong, China. The postcranial elements of this taxon are described in detail here, providing additional postcranial characteristics to L. youngi.
View Article and Find Full Text PDFGlobally elevated temperatures during the Cretaceous extreme greenhouse climate interval were punctuated by the Valanginian cooling event, which was characterized by a positive carbon isotope excursion, global cooling, and a glacial event approximately at 135 Ma. Disentangling ocean temperature and continental ice volume trends enables us to better understand climate fluctuations over deep time. We investigated the ocean temperature-ice sheet dynamics of glaciation events that occurred in the Cretaceous greenhouse world.
View Article and Find Full Text PDFInt J Environ Res Public Health
December 2022
Entrepreneurs face more pressure and challenges than ordinary workers, which has a serious impact on their physical and mental health. Therefore, the research focus has gradually shifted from objective indicators of entrepreneurial performance to exploration of entrepreneurs' subjective well-being. However, previous studies were often limited to a net effect analysis of a single dimension under symmetric thinking in quantitative research.
View Article and Find Full Text PDFAt present, research in the field of college students' entrepreneurship has proliferated, but these studies tend to analyze the net benefits of various factors on entrepreneurial activities, which are affected by the configuration effects of multiple factors; hence, it remains unclear whether entrepreneurial education can make graduates more efficient to started their own companies. To fill this gap in the literature, drawing on general systems theory and using fuzzy-set qualitative comparative analysis (fsQCA), we take 1,87,914 undergraduate and junior college students from 1,231 colleges and universities in China as a sample to explore the relationships among the five conditions in the entrepreneurship education environment and cognitive level (i.e.
View Article and Find Full Text PDFFe-activated persulfate process has been introduced into sludge conditioning currently, however the key sludge properties characteristics are worthwhile comprehensively considering for the engineering implementation and management. The results indicated that both the optimal dosages of persulfate and Fe were 0.6 mmol/gTS for sludge dewaterability amelioration, and the reduction efficiencies of capillary suction time (CST), specific resistance of filtration (SRF), and water content (Wc) of dewatered sludge cake reached to 90.
View Article and Find Full Text PDFAn efficient luminous and electronic energy transmission BiOBr based near-infrared (NIR) responsive heterojunction photocatalyst was successfully fabricated through growing BiOBr nanosheets on the superficial layer of the SrF-BiO-BO/Yb,Tb (SBBF) upconversion glass-ceramic (GC) via a facile in-situ etching GC method (FIEG). A high norfloxacin (NOR) degradation rate of 56% was obtained under 180 min NIR light irradiation for the NIR GC photocatalyst (SBBF/BiOBr-10), and it possesses much enhanced photocatalytic activity compared with that of pure BiOBr under UV-vis-NIR light irradiation. Wherein six intermediate products were identified in the NOR photodegradation process and the possible degradation pathways were proposed.
View Article and Find Full Text PDFA novel efficient near-infrared photocatalyst of oxyfluoride glass-ceramic (Er/Yb-CaO-AlO-SiO-CaF)/TiO was synthesized by a simple solid-state reaction method, with optically active center (Er/Yb) doped CaF nanocrystals in glass-ceramic micro powders and nanosized anatase TiO as the superficial coating. This near-infrared photocatalyst preparation method has a high production efficiency with no wastewater generated.
View Article and Find Full Text PDFFibulin-3 has been suggested to function in the remodeling of the extracellular matrix, however its role remains unclear in hypertensive vascular remodeling. In the current study, 10 Wistar-Kyoto (WKY) rats (control group) and 30 spontaneously hypertensive rats (SHRs) were used. SHRs were randomized into three groups: The placebo group, intravenous (I.
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