Publications by authors named "Zhao Du"

Food chemistry is a science that studies the composition, properties, and changes of food at the chemical and molecular levels, as well as their relationships to human health. With the rapid advancement of artificial intelligence (AI) technology, the field of food chemistry has undergone significant transformation, and new development opportunities have emerged. AI provides efficient, precise, and intelligent solutions for food analysis.

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An efficient and attractive method for the synthesis of valuable benzofuran-3(2)-one derivatives bearing a quaternary center in one step by employing dimethyl sulfoxide (DMSO) as a dual synthon under metal-free conditions has been developed. In this reaction, DMSO activated by cyanuric chloride (TCT) provides two different units (CH and SMe) in the target molecules, and the construction of the quaternary carbon center in the benzofuran-3(2)-ones can be controlled by the addition of water. Furthermore, the functional group compatibility and synthetic value were demonstrated by scope evaluation and gram-scale experiments.

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A straightforward and atom-economical method for the synthesis of quinolines and pyrroles has been reported. Using Earth-abundant, commercially available CrCl salt as a catalyst and the inexpensive, bench-stable 6,6'-dimethyl-2,2'-dipyridyl as a ligand, this chromium-catalyzed acceptorless dehydrogenative coupling provides important heterocycles, quinolines and pyrroles, in synthetically useful yields with good functional group tolerance, releasing water and hydrogen gas as by-products. Notably, the described protocol was also found to be applicable to the sustainable synthesis of highly substituted fused polycyclic quinolines and pyrroles.

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Insect adaptation to toxic cardenolides has been a model system to study convergent evolution between plants and herbivores. It was hypothesized that Organic anion-transporting polypeptides (Oatps) and multidrug transporters (Mdrs) provide basal resistance against cardenolides in a nonadapted insect. However, there is still little evidence to support this hypothesis.

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Background: Widespread resistance of insect pests to insecticides and transgenic crops in the field is a significant challenge for sustainable agriculture, and calls for the development of novel alternative strategies to control insect pests. One potential resource for the discovery of novel insecticidal molecules is natural toxins, particularly those derived from the venoms of insect predators.

Results: In this study, we identified three insecticidal proteinaceous toxins from the venom glands (VGs) of the predatory stink bug, Arma custos (Hemiptera: Asopinae).

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Augmented reality (AR) is a potentially disruptive technology that enriches the consumer experience and transforms marketing. With the surging popularity of AR in marketing practice, academic efforts to investigate its effects on consumer experience, response, and behavior have increased significantly. To obtain an integrated and comprehensive view of the front-line in AR marketing research and identify the gaps for future research, we analyze the existing AR marketing literature through a systematic literature review.

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The business environment is increasingly uncertain due to the rapid development of disruptive information technologies, the changing global economy, and the COVID-19 pandemic. This brings great uncertainties to investors to predict the performance changes and risks of companies. This research proposes a sequential data-based framework that aggregates data from multiple sources including both structured and unstructured data to predict the performance changes.

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Online discussion forums are an essential and standard setup in online courses to facilitate interactions among learners. However, learners' inadequate participation in online discussion forums is a long-standing challenge, which necessitates instructor intervention and the design consideration of online learning platforms. This research proposes and studies the role of mandatory participation, i.

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Leveraging the motion and force of individual molecular motors in a controlled manner to perform macroscopic tasks can provide substantial benefits to many applications, including robotics. Nonetheless, although millimetre-scale movement has been demonstrated with synthetic and biological molecular motors, their efficient integration into engineered systems that perform macroscopic tasks remains challenging. Here, we describe an active network capable of macroscopic actuation that is hierarchically assembled from an engineered kinesin, a biomolecular motor, and microtubules, resembling the contractile units in muscles.

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Herein, a series of ultrathin h-BN/BiMoO heterojunction with excellent photocatalytic activity has been firstly prepared via a feasible solvothermal method. Our results suggest that the optimized photocatalyst possesses a high degradation ratio of tetracycline (TC), oxytetracycline (OTC) and doxycycline (DC) up to 99.19%, 95.

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Using a portable gas chromatography and mass spectrometry (GC-MS), the volatile organic compounds (VOCs) pollution in each unit of the wastewater treatment system for vitamin C production was studied, and the species characteristics of volatile organic compounds (VOCs) were analyzed and summarized. The results showed that 32 kinds of volatile organic compounds were identified, and the total mass concentration range of volatilizing VOCs was 0.9629-32.

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Background: Functional group composition may affect invasion in two ways the effect of abundance, i.e. dominance of functional group; and the effect of traits, i.

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γ-amino butyric acid (GABA) is the main inhibitory neurotransmitter in the mammalian central nervous system. GABA is also found in many peripheral tissues, where it has important functions during development. Here, we identified the existence of the GABA system in spermatogonial stem cells (SSCs) and found that GABA negatively regulates SSC proliferation.

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