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Gorenstein projective modules and Frobenius extensions

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Science China Mathematics 2018年第7期61卷 1175-1186页

作者： Wei ren School of Mathematical Sciences Chongqing Normal University School of Mathematical Sciences Fudan University

We prove that for a Frobenius extension, if a module over the extension ring is Gorenstein projective,then its underlying module over the base ring is Gorenstein projective; the converse holds if the frobenius extension is either left-Gorenstein or separable(e.g., the integral group ring extension ZZG).Moreover, for the Frobenius extension RA = R[x]/(x^2), we show that: a graded A-module is Gorenstein projective in GrMod(A), if and only if its ungraded A-module is Gorenstein projective, if and only if its underlying R-module is Gorenstein projective. It immediately follows that an R-complex is Gorenstein projective if and only if all its items are Gorenstein projective R-modules.

关键词： Gorenstein projective module Frobenius extension graded module

滇东北地区下寒武统龙王庙组白云石化模式研究:来自钙同位素模拟结果

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地学前缘 2024年第2期31卷 313-326页

作者：李柯然杨迪宋金民李智武金鑫刘芳杨雄刘树根叶玥豪范建平任佳鑫赵玲丽夏舜陈伟成都理工大学油气藏地质及开发工程全国重点实验室四川成都610059 成都理工大学能源学院四川成都610059 成都理工大学地球与行星科学学院四川成都610059 西华大学四川成都610039

滇东北地区桧溪剖面位于四川盆地南缘外侧,剖面龙王庙组地层白云石化活动强烈,广泛发育泥晶灰岩、砂屑灰岩、泥晶白云岩、云质灰岩和灰质云岩等岩性。剖面3个灰岩过渡岩性白云岩旋回中具有混积特征,石英颗粒大量发育。阴极发光下,3个岩... 详细信息

滇东北地区桧溪剖面位于四川盆地南缘外侧,剖面龙王庙组地层白云石化活动强烈,广泛发育泥晶灰岩、砂屑灰岩、泥晶白云岩、云质灰岩和灰质云岩等岩性。剖面3个灰岩过渡岩性白云岩旋回中具有混积特征,石英颗粒大量发育。阴极发光下,3个岩性旋回主要呈暗红色,可见石膏。地球化学测试显示:旋回1中灰岩白云岩碳同位素为-0.78‰~-0.49‰,氧同位素为-9.28‰~-8.96‰,锶同位素为0.70979554~0.71218318,钙同位素为0.54‰~1.12‰;旋回2中灰岩白云岩碳同位素为0.37‰~0.41‰,氧同位素为-9.76‰~-9.64‰,锶同位素为0.71008711~0.71374167,钙同位素为0.63‰~0.81‰;旋回3中灰岩白云岩碳同位素为-0.03‰~0.23‰,氧同位素为-9.90‰~-9.24‰,锶同位素为0.70990934~0.71237617,钙同位素为0.56‰~0.94‰;3个旋回中灰岩锶、钙同位素测试结果明显偏低,白云岩锶、钙结果明显偏高。钙同位素对流、缓冲模型模拟结果显示,旋回1白云石化流体Mg^(2+)浓度为2倍海水当量(105.64 mmol/kg,Mg^(2+)/Ca^(2+)=1.99),旋回2白云石化流体Mg^(2+)浓度为7倍海水当量(369.74 mmol/kg,Mg^(2+)/Ca^(2+)=6.79),旋回3白云石化流体Mg^(2+)浓度为2.3倍海水当量(121.48 mmol/kg,Mg^(2+)/Ca^(2+)=2.29)。温度模拟显示,白云石化流体温度主要为30℃。综合岩石学、常规地球化学及钙同位素模拟结果,滇东北地区龙王庙组白云岩为渗透回流模式成因。

关键词：滇东北地区龙王庙组白云石化钙同位素流体温度模拟流体元素模拟

Immunosuppressive checkpoint Siglec-15:a vital new piece of the cancer immunotherapy jigsaw puzzle

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Cancer Biology & Medicine 2019年第2期16卷 205-210页

作者： Xiubao ren Department of Biotherapy Tianjin Medical University Cancer Institute & Hospital National Clinical Research Center for CancerKey Laboratory of Cancer Prevention and TherapyTianjin Key Laboratory of Cancer Immunology and Biotherapy Tianjin’s Clinical Research Center for Cancer

On March 5th, a novel immunosuppressive molecule,Siglec-15, was reported in Nature Medicine by Professor Lieping Chen1. Siglec-15 was reported in a wide variety of tumors. The molecule is not a simple replica of PD-1/***, the expressions of Siglec-15 and PD-L1 are mutually exclusive1, suggesting that Siglec-15 antibodies may be effective on tumors that are not responsive to anti-PD-1/PDL1 therapy. Siglec-15 potentially serves as a complementary therapeutic target and offers alternative treatments for many anti-PD-l/PD-Ll therapy unresponsive patients. This discovery generated a huge response.

关键词： cancer immunotherapy

Facial Merkel cell carcinoma in a patient with diabetes and hepatitis B:A case report

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World Journal of Clinical Cases 2023年第17期11卷 4179-4186页

作者： Ming-Yang ren Yun-Juan Shi Wei Lu Sha-Sha Fan Xiao-Hua tao Yang Ding School of Medicine Graduate School of Bengbu Medical CollegeBengbu 233030Anhui ProvinceChina Center for Plastic and Reconstructive Surgery Department of DermatologyZhejiang Provincial People’s HospitalHangzhou 310014Zhejiang ProvinceChina

BACKGROUND Patients with chronic inflammatory disorders are at a higher risk of developing aggressive Merkel cell carcinoma(MCC). Diabetes is a common chronic inflammatory disease that is possibly associated with MCC;however, there are still no reports on the association between hepatitis B virus(HBV) infection and MCC. Whether there is an association between these three diseases and the specific mechanisms behind their effects is worth further research in the *** SUMMARY We herein report a rare case of MCC with extracutaneous and nodal invasion in an Asian individual with type 2 diabetes mellitus and chronic HBV infection, but no immunosuppression or other malignancies. Such cases are uncommon and have rarely been reported in the literature. A 56-year-old Asian male presented with a significant mass on his right cheek and underwent extensive resection combined with parotidectomy, neck lymphadenectomy, and split-thickness skin grafting. Based on the histopathological findings, a diagnosis of MCC involving the adipose tissue, muscle, nerve, and parotid gland with lymphovascular invasion was made. Subsequently, he received radiotherapy with no adverse *** MCC is a rare, aggressive skin cancer with frequent local recurrence, nodal invasion, and metastasis, which usually arises in older people of the white race. Patients with chronic inflammatory disorders are at a higher risk of developing aggressive MCC. The diagnosis can be confirmed with histology and immunohistochemistry. For localized MCC, surgery is the preferred treatment option. However, for advanced MCC, radiotherapy and chemotherapy have proven to be effective. In cases where chemotherapy is not effective or in the advanced stages of MCC, immune therapy plays an important role in treatment. As with any rare disease, the management of MCC remains an enormous challenge for clinicians;thus, follow-up should be individualized and future progress needs multidisciplinary collaborative effor

关键词： Merkel cell carcinoma Diabetes Hepatitis B virus infection Case report

数字怀旧:Z世代厂区子弟集体记忆的媒介化生产

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传媒观察 2024年第9期 67-77页

作者：张媛任腾越西北大学新闻传播学院陕西西安710127

厂区是一种将生产区域与生活区域紧密结合的空间区域。随着市场经济改革推进,厂区作为“三线建设”的产物经历了“关、停、并、转、迁”的改造,对于厂区子弟而言,厂区成了记忆中回不去的“故乡”。相较于由乡入城所带来的“乡愁”,“厂... 详细信息

厂区是一种将生产区域与生活区域紧密结合的空间区域。随着市场经济改革推进,厂区作为“三线建设”的产物经历了“关、停、并、转、迁”的改造,对于厂区子弟而言,厂区成了记忆中回不去的“故乡”。相较于由乡入城所带来的“乡愁”,“厂愁”是一个更为独特的时代议题。通过口述史和田野调查,可以看到媒介怀旧是新生代厂区子弟的一种自我认同和社群重建的现实策略。作为网络原住民的Z世代厂区子弟将社交平台用作记忆媒介,改变了集体记忆的建构机制,拓展了记忆研究的领域。然而,这种媒介怀旧似在集体意识层面蕴含着悖论,即媒介化社会所赋予的个体主义生活方式与封闭式厂区所形成的集体主义记忆之间的张力。该悖论既表征着社会转型期的结构性矛盾,又透露出媒介生存本身的虚拟性和不确定性。

关键词：厂区子弟集体记忆媒介怀旧 Z世代媒介化

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豫西宜阳地区煤下铝土矿成矿规律及找矿标志

矿产与地质 2024年第2期38卷 239-248页

作者：任丰艳胡伟河南省第三地质大队有限公司河南郑州451464

宜阳煤下铝土矿床位于华北地台南缘,其南紧接崤山—鲁山拱斜断束、北紧接为洛阳新坳陷。通过对成矿地质条件及控矿因素分析后认为,该矿床的铝土矿赋存于上石炭统本溪组(二叠系煤系之下);其厚大矿体位于盆地基底的次级凹陷中,矿体的厚度... 详细信息

宜阳煤下铝土矿床位于华北地台南缘,其南紧接崤山—鲁山拱斜断束、北紧接为洛阳新坳陷。通过对成矿地质条件及控矿因素分析后认为,该矿床的铝土矿赋存于上石炭统本溪组(二叠系煤系之下);其厚大矿体位于盆地基底的次级凹陷中,矿体的厚度、品位与含矿岩系的厚度呈正相关;铝土矿的成矿物质来源于古陆,古陆盆地边缘存在的低山丘陵地貌有利于铝硅分离化学风化作用的进行和铝土矿的形成;含铝岩层及地层、岩相古地理特征、共生矿物标志可作为本区的找矿标志。

关键词：煤下铝土矿成矿规律找矿标志宜阳豫西

Heterogeneity and differential hydrocarbon accumulation model of deep reservoirs in foreland thrust belts: A case study of deep Cretaceous Qingshuihe Formation clastic reservoirs in southern Junggar Basin, NW China

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Petroleum Exploration and Development 2023年第2期50卷 360-372页

作者： GAO Chonglong WANG Jian jin Jun LIU Ming ren Ying LIU Ke WANG Ke DENG Yi College of Petroleum China University of Petroleum(Beijing)at KaramayKaramay 834000China Research Institute of Experiment and Detection of PetroChina Xinjiang Oilfield Company Karamay 834000China College of Geosciences Northeast Petroleum UniversityDaqing 163318China College of Geosciences China University of Petroleum(Beijing)Beijing 102249China

Using the data of drilling, logging, core, experiments and production, the heterogeneity and differential hydrocarbon accumulation model of deep reservoirs in Cretaceous Qingshuihe Formation(K1q) in the western section of the foreland thrust belt in southern Junggar Basin are investigated. The target reservoirs are characterized by superimposition of conglomerates, sandy conglomerates and sandstones, with high content of plastic clasts. The reservoir space is mainly composed of intergranular pores. The reservoirs are overall tight, and the sandy conglomerate has the best physical properties. The coupling of short deep burial period with low paleotemperature gradient and formation overpressure led to the relatively weak diagenetic strength of the reservoirs. Specifically, the sandy conglomerates show relatively low carbonate cementation, low compaction rate and high dissolution porosity. The special stress-strain mechanism of the anticline makes the reservoirs at the top of the anticline turning point more reformed by fractures than those at the limbs, and the formation overpressure makes the fractures in open state. Moreover, the sandy conglomerates have the highest oil saturation. Typical anticline reservoirs are developed in deep part of the thrust belt, but characterized by "big trap with small reservoir". Significantly, the sandy conglomerates at the top of anticline turning point have better quality, lower in-situ stress and higher structural position than those at the limbs,with the internal hydrocarbons most enriched, making them high-yield oil/gas layers. The exponential decline of fractures makes hydrocarbon accumulation difficult in the reservoirs at the limbs. Nonetheless, plane hydrocarbon distribution is more extensive at the gentle limb than the steep limb.

关键词： foreland thrust belt deep reservoir heterogeneity differential hydrocarbon accumulation Cretaceous Qing-shuihe Formation GT1 Well Gaoquan structural belt southern Junggar Basin

文化产业“粉丝经济”的过度开发与正向价值构建

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决策与信息 2024年第5期 68-75页

作者：余人程婉青广东财经大学人文与传播学院广东财经大学网络传播学院广东广州510320

粉丝经济是互联网时代的产物。当前粉丝经济已渗透到各行各业尤其是文化产业,给社会带来了新活力和新气象。粉丝经济的作用机制是以偶像为中心的明星经济、以社群为中心的商业模式、以媒介内容为中心的IP经济。随着“全民娱乐”不断泛化... 详细信息

粉丝经济是互联网时代的产物。当前粉丝经济已渗透到各行各业尤其是文化产业,给社会带来了新活力和新气象。粉丝经济的作用机制是以偶像为中心的明星经济、以社群为中心的商业模式、以媒介内容为中心的IP经济。随着“全民娱乐”不断泛化,粉丝经济被过度开发,开始绑架青少年,带偏文化传播节奏与文化消费理念,甚至毒化社会风气。粉丝经济需要从主流媒体、明星艺人、经纪公司、粉丝群体、平台治理等方面加强正向价值构建。

关键词：粉丝经济饭圈文化社群文化 IP经济平台治理

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中医护理门诊研究现状的可视化分析

循证护理 2024年第1期10卷 104-114页

作者：任梦何娅娜湖南中医药大学湖南410208 湖南中医药大学第一附属医院

目的:对中医护理门诊研究现状进行可视化分析,为中医护理门诊的后续研究提供参考。方法:检索中国知网、万方数据库、维普数据库、中国生物医学文献数据库与Web of Science核心合集数据库自2012年1月1日-2023年5月27日发表的相关文献。... 详细信息

目的:对中医护理门诊研究现状进行可视化分析,为中医护理门诊的后续研究提供参考。方法:检索中国知网、万方数据库、维普数据库、中国生物医学文献数据库与Web of Science核心合集数据库自2012年1月1日-2023年5月27日发表的相关文献。提取文献信息,并对机构、关键词进行预处理,采用CiteSpace 6.2.R2与VOSviewer 1.6.19软件进行可视化分析。结果:纳入中文期刊文献363篇、英文期刊文献149篇,分别形成了以刘杨晨、Schaefert Rainer等为核心的多个合作团体,以及以浙江省中医院、China Medical University(台湾地区)等科研院校为核心的研究机构。该领域研究热点分为两类,一类是对于中医护理门诊防治疾病的研究,另一类是对于中医护理门诊建设与发展的研究。结论:中医护理门诊研究热度整体呈升温趋势,中医护理门诊的建设为近年来研究热点,护理服务质量、中医护理专科人才培养为今后研究的新热点。

关键词：中医护理护理门诊护理管理文献计量学可视化分析