COVID-19 Pulmonary and Extrapulmonary Complications

To date, the coronavirus disease 2019 (COVID-19) outbreak has become a global pandemic and public health disaster. In addition to acute respiratory manifestations, patients with COVID-19 exhibit other non-respiratory manifestations, particularly in those with severe underlying disease. Few specific therapeutics are effective for COVID-19, and supportive care is the primary remedy. Here, we comprehensively surveyed the most recent reports on extrapulmonary complications of COVID-19 and their corresponding treatments, as well as the comparison of different clinical symptoms and complications of COVID-19, severe acute respiratory syndrome (SARS), and the Middle East respiratory syndrome (MERS) patients. We wish to provide a molecular and cellular understanding of the complications of COVID-19 and provide guidance for future diagnostics, therapeutics, and prognostics of COVID-19.

Fractional pyrolysis of Cyanobacteria from water blooms over HZSM-5 for high quality bio-oil production

Fractional pyrolysis and one-step pyrolysis of natural algae Cyanobacteria from Taihu Lake were comparatively studied from 200 to 500 ℃. One-step pyrolysis produced bio-oil with complex composition and low high heating value （HHV〈30.9 MJ/kg）. Fractional pyrolysis separated the degradation of different components in Cyanobacteria and improved the selectivity to products in bio-oil. That is, acids at 200 ℃, amides and acids at 300 ℃, phenols and nitriles at 400 ℃, and phenols at 500 ℃, were got as main products, respectively. HZSM-5 could promote the dehydration, cracking and aromatization of pyrolytic intermediates in fractional pyrolysis. At optimal HZSM-5 catalyst dosage of 1.0 g, the selectivity to products and the quality of bio-oil were improved obviously. The main products in bio-oil changed to nitriles （47.2%） at 300 ℃, indoles （51.3%） and phenols （36.3%） at 400 ℃. The oxygen content was reduced to 7.2 wt% and 9.4 wt%, and the HHV was raised to 38.1 and 37.3 MJ/kg at 300 and 400 ℃, respectively. Fractional catalytic pyrolysis was proposed to be an efficient method not only to provide a potential solution for alleviating environmental pressure from water blooms, but also to improve the selectivity to products and obtain high quality bio-oil.

Embryoid Induction and Cell Suspension Culture of Premna microphylla Turca

In order to find suspension culture conditions suitable for Premna microphylla Turea, with the leaves of experimented P. microphylla as a material, em- bryogenic callus induction, subculture, dispersion of embryogenic callus and suspension culture were performed. The results showed that the calli induced from leaves were different. The medium most suitable for induction of loose embryogenic callus for suspension culture was MS ＋ 0.4 mg/L 2,4-D ＋ 0.4 mg/L NAA ＋ 3% sucrose ＋0.8% agar. A better cell line could be obtained with cellulase and pectinase for dispersion of P. microphyUa callus. The medium most suitable for sus- pension culture was MS ＋0.4 mg/L 2,4-D ＋0.8 mg/L KT ＋3% sucrose. In this medium, the fresh weight of the suspensian-cultured cells increased by 6.46 times per 7 d. Dark culture was more suitable for cell proliferation. The average contents of pectin and protein were, respectively, 6.57% and 0.12% in the sus- pended ceils of P. microphylla, which had been cultured for 3 weeks under the optimum culture conditions.

Effect of Several Common Processing Methods on Content Changes of Resistant Starch and Main Nutrients in ‘Luotian Chestnut’

Using ＇Luotian chestnut＇ as the raw material, the content changes of resistant starch and main nutrients in the processed fruit were studied after taken common processing of high-temperature steaming of canned food, sand-mixed frying and cooking without shells, with the aim to find out the effects of different processing methods on the content changes of nutrients in chestnuts. The result showed that there were significant differences in the resistant starch contents by different processing methods. After processing, the retention degree of resistant starch was the lowest using the methods of sand-mixed frying, of 42.42%, while the highest was found in canned chestnut products, of 93.16%. Among the main nutrients, adding water and sugar would reduce content of resistant starch, while increasing the protein content would promote the retention of resistant starch retention. The changes in lipid content had no effect or not a single promoting or weakening effects on the content of resistant starch.

Implications of neuroimaging findings in addiction

Addiction is a chronic and often relapsing brain disorder characterized by drug abuse and withdrawal symptoms and compulsive drug seeking(Koob and Volkow,2010)when access to the drug is restricted.Addiction leads to structural and functional brain changes implicated in reward,memory,motivation,and control(Volkow et al.,2019;Lüscher et al.,2020).

太阳立体探测任务设想

太阳空间探测在太阳物理前沿科学问题研究和空间天气预报应用研究方面具有重要的意义.人类在60余年的太阳空间探测活动中,取得了一系列重要成果,但仍存在诸多根本性重大问题有待解决.太阳立体探测可以克服单视角观测的局限,获取全方位、多要素的物理数据,促进解决太阳物理中的重大科学问题.本文介绍了太阳内部结构和磁场起源、太阳活动机理研究、太阳活动的全日球空间天气效应和空间天气预报模式研究4个科学目标,太阳立体探测任务空间布局、系统组成和探测器总体设计,以及太阳立体探测任务的有效载荷配置和主要技术指标.

Video-triggered EEG-emotion public databases and current methods: A survey

Emotions,formed in the process of perceiving external environment,directly affect human daily life,such as social interaction,work efficiency,physical wellness,and mental health.In recent decades,emotion recognition has become a promising research direction with significant application values.Taking the advantages of electroencephalogram(EEG)signals(i.e.,high time resolution)and video-based external emotion evoking(i.e.,rich media information),video-triggered emotion recognition with EEG signals has been proven as a useful tool to conduct emotion-related studies in a laboratory environment,which provides constructive technical supports for establishing real-time emotion interaction systems.In this paper,we will focus on video-triggered EEG-based emotion recognition and present a systematical introduction of the current available video-triggered EEG-based emotion databases with the corresponding analysis methods.First,current video-triggered EEG databases for emotion recognition(e.g.,DEAP,MAHNOB-HCI,SEED series databases)will be presented with full details.Then,the commonly used EEG feature extraction,feature selection,and modeling methods in video-triggered EEG-based emotion recognition will be systematically summarized and a brief review of current situation about video-triggered EEG-based emotion studies will be provided.Finally,the limitations and possible prospects of the existing video-triggered EEG-emotion databases will be fully discussed.