How to Develop Future Internet Medical Care? : A Case Study of China

Sha-Sha SHEN(Sha-Sha SHEN),Shu-Feng XIAO(Shu-Feng XIAO) 동아시아경상학회 2022 The East Asian Journal of Business Economics Vol.10 No.4

Purpose – With the increasing medical demands of the public, the development of future Internet medical care has come to represent a major problem. Therefore, the purpose of this study is to discuss future development strategies for Interne medical care while taking China’s Internet hospitals as an example case. Research design, data, and methodology – This study conducted a case study of China’s Internet hospitals to summarize the fundamental problems faced by Internet hospitals and propose future development strategies to overcome these problems for Internet medical care. Result – Although Internet hospitals have been regarded as the ultimate product of Internet medical care, from the perspective of the government, medical institutions, platforms builders and maintainers, and patients, they still face some basic issues. Conclusion – This study concludes that the government and medical institutions play an important role in the future development of Internet medical care and suggests that the government should make overall plans for the policies and standards and should play the main role in enhancing the public trust in Internet medical care, while medical institutions should take steps such as seizing policy opportunities, driving online and offline collaborations, and constructing suitable evaluation systems to promote the development of Internet medical care.

A remark on QF rings

Feng Feng,Liang Shen 대한수학회 2019 대한수학회보 Vol.56 No.1

This article mainly concentrates on the open question wheth\-er a right self-injective ring $R$ is necessary QF if $R/S_l$ is left Goldie. It is answered affirmatively under the condition $S_l\subseteq S_r$, where $S_l$ and $S_r$ denote the left socle and right socle of $R$ respectively. And the original condition ``right self-injective" can be weakened to ``right CS and right P-injective". It is also proved that a semiperfect, left and right mininjective ring $R$ is QF if $S_r\subseteq^{ess}R_R$ and $R/S_l$ is left Goldie.

The Screening of Fermented Medicinal Herbs to Identify Those with Anti-inflammatory Properties

Shen, Feng-Yan,Ra, Je-Hveon,Kim, Jin-Ju,Jung, Sung-Ki The Society of Internal Korean Medicine 2009 大韓韓方內科學會誌 Vol.30 No.1

Objectives : Consumption of fermented foods has been known to alleviate some of the symptoms of atopy and may limit allergy development, while there are also many medicinal herbs proved to be effective for immunologically-mediated diseases. In this study, we introduced modern zymology to ferment some herbs to see if fermentation has the possibility of increasing the anti-inflammatory effects of medicinal herbs. Interleukin-4 (IL-4) and interferon-gamma $(INF-\gamma)$ have been demonstrated to be the main factors in the pathology of allergic diseases. Methods : We measured the levels of IL-4 and $INF-\gamma$ on concanavalin A-induced BALB/c mice spleen cells, which were subsequently treated with fermented and unfermented herbs. We then compared the fermented groups with unfermented groups to see if the anti-inflammatory effects of the herbs were influenced by fermentation. Results and Conclusions : Our results showed that fermentation had the potential to increase the anti-inflammatory effects of some medicinal herbs, and Astragalus membranaceus and Salvia miltiorrhiza would be the most suitable medicinal herbs for fermentation among the herbs in this study.

The influence of hand grip strength on surgical outcomes after surgery for degenerative lumbar spinal stenosis: a preliminary result

Shen, Feng,Kim, Ho-Joong,Lee, Na-Kyoung,Chun, Heoung-Jae,Chang, Bong-Soon,Lee, Choon-Ki,Yeom, Jin S. Elsevier 2018 SPINE JOURNAL Vol.18 No.11

<P><B>Abstract</B></P> <P><B>Background Context</B></P> <P>Although a number of prognostic factors have been demonstrated to be associated with surgical outcome of degenerative lumbar spinal stenosis (DLSS), no study has investigated the relation between hand grip strength (HGS) and treatment outcome of DLSS.</P> <P><B>Purpose</B></P> <P>The purpose of the present study was to examine the influence of HGS on surgical outcomes after surgery for patients with DLSS.</P> <P><B>Study Design</B></P> <P>This is an observational study.</P> <P><B>Patient Sample</B></P> <P>Patients who underwent spine surgery for DLSS were included in the study.</P> <P><B>Outcome Measures</B></P> <P>Oswestry Disability Index (ODI), EuroQOL (EQ-5D), and visual analog scale (VAS) scores for back or leg pain were assessed.</P> <P><B>Materials and Methods</B></P> <P>A total of 172 consecutive patients who underwent spine surgery for DLSS were included in the present study. Patients were assigned to either high HGS group (≥26 kg for men and ≥18 kg for women, n=124) or low HGS group (<26 kg for men and <18 kg for women, n=48) based on their preoperative HGS performance. Oswestry Disability Index, EQ-5D, and VAS scores for back and leg pain were assessed and compared between two groups preoperatively, 3 and 6 months after surgery. The primary outcome measure was baseline-adjusted ODI scores 6 months after surgery. The secondary outcome measures, including the overall ODI score, EQ-5D score, VAS score for back and leg pain, were assessed at each time point during the 6-month follow-up period.</P> <P><B>Results</B></P> <P>As primary outcome, baseline-adjusted ODI scores were significantly lower in the high HGS group than in the low HGS group 6 months after surgery. In the secondary outcome measurements, the ODI, EQ-5D, and VAS scores for back and leg pain improved significantly with time after surgery in both groups. The effects of HGS group on the overall changes in the ODI and EQ-5D scores during the 6-month period were significantly different between the two groups; however, they were not significantly different on VAS score for back and leg pain. The pattern of change in the ODI during the follow-up period was significantly different between the two groups.</P> <P><B>Conclusions</B></P> <P>Patients with preoperative high HGS display better surgical outcome in terms of disability and health status 6 months after spine surgery. Preoperative HGS can act as a predictor of surgical outcome in patients with DLSS.</P>

A Robust Adaptive Beamformer Based on Semidefinite Programming with Quadratic Constraints

Feng Shen,Jinyang Song 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.2

A robust beamforming with quadratic constraints, formulated as a semidefinite programming (SDP) problem, is proposed in this paper. With this formulation, the constraints on magnitude response can be easily imposed on the adaptive beamformer. And the non-convex quadratic constraints can be transformed into linear constraints. Therefore, the proposed method can be robust against the steering direction error. In practice, there are many array imperfections except steering direction error. In order to resist all kinds of array imperfections, the adaptive beamformer based on worst-case optimization technique is proposed by minimizing the array output power with respect to the worst-case array imperfections. Simulation results demonstrate that the proposed method is effective and can achieve a better performance.

Gas phase dehydration of glycerol catalyzed by rutile TiO_2-supported heteropolyacids

Lingqin Shen,Aili Wang,Hengbo Yin,Yonghai Feng,Longbao Yu,Tingshun Jiang,Yutang Shen,Zhanao Wu,박은덕 한국공업화학회 2011 Journal of Industrial and Engineering Chemistry Vol.17 No.3

Gas phase dehydration of glycerol catalyzed by the rutile TiO2-supported heteropolyacids was investigated. The TiO_2-supported heteropolyacid catalysts were prepared by the incipient wetness impregnation method using silicotungstic, phosphotungstic, and phosphomolybdic acids as active compounds. The as-prepared catalysts were characterized by X-ray diffraction, infrared spectroscopy,temperature programmed desorption of ammonia, and surface area measurement. The heteropolyacids supported by rutile TiO_2 were crystallites. The catalytic activity of the catalysts in the gas phase dehydration of glycerol was significantly affected by the type and loading of heteropolyacids. TiO_2-supported silicotungstic acid (20 wt.%) catalyst showed the highest catalytic activity with an acrolein selectivity of 80 mol% at a conversion of glycerol of 99% and a reaction temperature of 280 8C under ambient pressure. The possible reaction route in the gas phase dehydration of glycerol catalyzed by the TiO_2-supported heteropolyacid catalysts was also discussed briefly.

레이저빔 반사 화상을 이용한 연마면 거칠기 측정법에 관한 연구

Yun-Feng Shen,임한석(Han-Seok Lim),김화영(Hwa-Young Kim),안중환(Jung-Hwan Ahn) Korean Society for Precision Engineering 1999 한국정밀공학회지 Vol.16 No.2

Low-dose diethylhexyl phthalate exposure does not impair the expressive patterns of epigenetics-related genes and DNA methylation of breast cancer-related genes in mouse mammary glands

Shun-Feng Cheng,Ling Li,Bo Li,Jing-Cai Liu,Fang-Nong Lai,Yong Zhao,Xi-Feng Zhang,Wei Shen,Lan Li 대한독성 유전단백체 학회 2018 Molecular & cellular toxicology Vol.14 No.2

Backgrounds: Di-(2-ethylhexyl) phthalate (DEHP), as an endocrine-disrupting chemical (EDC), is widely used in plasticizer and other productions. Ubiquitous human exposure to DEHP has been proposed to be a potential risk to public health. Developmental exposure to DEHP could alter epigenetic programming and result in adult-onset disease. Methods: In this study, we investigated whether DEHP exposure to pregnant mice affected epigenetic changes as a result of increase in breast cancer incidence. Results: Our results showed that the expression of total 143 epigenetics-related genes in mammary gland cells, have no significantly altered after short time and low-dose treated with DEHP from 0.5 days post-coitum (dpc) to 3.5 dpc of pregnant mice. DNA methylation status of some neoplastic development genes, such as EGFr, Esr1, Pgr, Fos and Rassf5 also had no obvious change. Conclusion: These finding showed no impact of DEHP on the expressive patterns of epigenetics-related genes and DNA methylation of breast cancer-related genes in pregnant mouse mammary gland cells.

Iron interferes with quorum sensing-mediated cooperation in Pseudomonas aeruginosa by affecting the expression of ppyR and mexT, in addition to rhlR

Sun Feng,Li Na,Wang Lijia,Feng Huajun,Shen Dongsheng,Wang Meizhen 한국미생물학회 2020 The journal of microbiology Vol.58 No.11

The stabilization of quorum sensing (QS) is vital for bacterial survival in various environments. Although the mechanisms of QS stabilization in certain conditions have been well studied, the impact of environmental factors has received much less attention. In this study, we show that the supplementation of 25 μM iron in competition experiments and 50 μM in evolution experiments to casein growth cultures significantly increased the possibility of population collapse by affecting elastase production. However, the expression of lasI and lasR remained constant regardless of iron concentration and hence this effect was not through interference with the LasIR circuit, which mainly regulates the secretion of elastase in Pseudomonas aeruginosa. However, the expression of rhlR was significantly inhibited by iron treatment, which could affect the production of elastase. Further, based on both reverse transcription quantitative polymerase chain reaction and gene knock-out assays, we show that iron inhibits the transcription of ppyR and enhances the expression of mexT, both of which decrease elastase production and correspondingly interfere with QS stabilization. Our findings show that environmental factors can affect the genes of QS circuits, interfering with QS stabilization. These findings are not only beneficial in understanding the mechanistic effect of iron on QS stabilization, but also demonstrate the complexity of QS stabilization by linking non-QS-related genes with QS traits.

1930년대 기교주의 논쟁에 나타난 인식의 준거점 -형식과 내용, 그리고 영감-

신문봉 ( Shen Wen-feng ) 우리어문학회 2022 우리어문연구 Vol.74 No.-

기교주의 논쟁의 시작과 끝은 기교주의 개념의 생성과 해체 과정을 같이 한다. 기교주의 개념은 엄밀한 의미에서 이론용어보다는 한시적으로 나타난 비평용어에 가깝다. 이런 개념을 둘러싼 논쟁이 그동안 비평사에서 중요한 지위를 점할 수 있었던 이유는 개념 자체가 지닌 이론성보다 여기에 참여했던 김기림, 임화, 박용철이 갖고 있는 문단적 지위가 큰 몫을 점하였기 때문이다. 세 논자는 부동한 인식의 준거점에 근거하여 개념을 인식하였는데, 낭만주의의 안티테제로서 등장한 기교주의는 그 변별지점에 있어서 부동한 양상을 보인다. 김기림은 초창기부터 시의 기술문제에 깊은 관심을 보였고 이를 근대성의 중요한 특질로 삼았다. 그가 이해하는 기술이란 기교와 동등한 개념으로서 시의 형식에 집중하면서 지성을 강조한다. 이 같이 중요한 기교에 대하여 4반세기 동안 시단에서 충분한 자각이 이뤄지지 못했다는 점이 기교주의 탄생의 의의이자 필요성이라 여겼고, 자각이 있기 전까지는 낭만주의 또는 내용주의 시관이 시단을 주도했다고 지적했다. 이로부터 알 수 있듯이 김기림은 ‘형식’을 인식의 준거점으로 삼아 기교주의와 낭만주의를 구별하였고 낭만주의는 또한 형식면에 있어서 무기교성이란 점으로 인해 내용주의와 동등한 것으로 치부되었다. 임화는 낭만주의를 주관성 측면에서 논의하였는데, 주관성을 지닌 낭만주의는 미래적인 방향을 새롭게 제시할 수 있다는 점에서 임화로부터 긍정적으로 평가받는다. 그러나 김기림과 대조적이게 임화의 낭만주의는 내용주의의 한 측면으로서 다루어지고 있으며, 내용주의는 형식주의와 직접적인 대립을 이룬다. 동시에 임화는 기교주의를 형식주의와 동일시하면서 사실상 ‘내용’을 준거점으로 삼아 기교주의와 내용주의를 구별하였고, 낭만주의는 내용주의의 일부로서 치부되는 양상이다. 박용철의 시론에는 낭만주의적 정신이 깃들어 있는데 특히 시의 영감을 강조한다. 그는 고전주의와 기교주의에 대한 비판에서 유사한 측면을 보였는데, 이를 통해 ‘영감’을 인식의 준거점으로 삼아 기교주의와 낭만주의를 변별하고 있음을 알 수 있다. 하지만 박용철은 영감을 중요시하지만 시의 형식적 기교를 동시에 강조하기도 하였고, 이로 인하여 임화로부터 수구적 기교주의라는 비판을 받기도 한다. 그러나 그의 관련 논문을 살펴본 결과 변용으로 대표되는 박용철의 기술론은 여전히 ‘영감’을 주축으로 한 낭만주의적 특성을 지니고 있음을 알 수 있다. 이처럼 김기림, 임화, 박용철은 기교주의 개념을 둘러싼 논쟁을 통하여 각자 부동한 문학적 입장을 드러낼 수 있는 계기를 획득하였는데, 이것이 기교주의 논쟁이 문학사에서 중요한 위치를 점할 수 있는 중요한 근거가 된다. The beginning and end of the Technicalism Debate coincides with the creation and dissolution of the concept of “technicalism”. In a strict sense, the concept of technicalism is closer to a term temporarily used in criticism rather than a theoretical term. The reason that the debate over this concept occupies an important position in contemporary discourse is because the literary status of Kim-kirim, Im-hwa, and Park-yongchul, who used this concept, played a bigger role than the theoretical nature of the concept itself. Each of the three authors focused on different aspects to engage with the concept, but the technicalism that emerged as the antithesis of romanticism showed a different aspect. Kim-kirim displayed a deep interest in the technical issues of poetry from the beginning and considered it to be an important characteristic of modernism. According to him, skill was equivalent to technique, and there was an emphasis on wisdom that was concentrated on the form of poetry. The advent of technicalism was considered to be significant and necessary because there was not enough awareness around this important technique in the field of poetry for over half a century. Thus, Kim-kirim distinguished between technicalism and romanticism on the basis of 'form', and romanticism was regarded as being same as contentism in terms of form because it was new. Im-hwa discussed romanticism in terms of subjectivity, and he viewed it in a positive light, he deemed it to be capable of heralding a new future. However, in contrast to Kim-kirim, Im-hwa's romanticism is treated as a part of 'contentism', which is in direct opposition to formalism. At the same time, Im-hwa identified technicalismwith formalism and, in fact, differentiated technicalism from contentism based on ‘content’, and romanticism was dismissed as being a part of contentism. Park-yongchul's poetry has a romantic spirit, and he especially emphasizes on the inspiration in poetry. His critique of classicism and technicalism was also equally similar. He distinguished between technicalism and romanticism via the concept of 'inspiration'. However, Park-yongchul also emphasized the formal technique of poetry, and after examining his work on the subject, we find that Park-yongchul's technicalism, represented by transformation, still has romantic characteristics based on 'inspiration'. In this way, Kim-kirim, Im-hwa, and Park-yongchul represented important literary positions in modernist poetry, realism poetry, and traditional lyric poetry through the debate over the concept of “technicalism”.