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新媒体环境下大学生网络娱乐自我控制能力的培养对策

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新闻研究导刊 2024年第7期15卷 19-21页

作者：鄂明尧任婧任菲菲白城医学高等专科学校白城市医院吉林白城137000

作为最活跃的新媒体用户群体之一的大学生,通过新媒体获得学习资源、拓展人际网络、丰富文化生活,但过度使用社交软件、沉迷网络游戏等问题也接踵而至。因此,有必要在新媒体环境下培养大学生的网络娱乐自我控制能力,使大学生合理利用网... 详细信息

作为最活跃的新媒体用户群体之一的大学生,通过新媒体获得学习资源、拓展人际网络、丰富文化生活,但过度使用社交软件、沉迷网络游戏等问题也接踵而至。因此,有必要在新媒体环境下培养大学生的网络娱乐自我控制能力,使大学生合理利用网络资源,避免新媒体对大学生的学习和生活造成负面影响。文章分析了新媒体环境的特征以及大学生网络娱乐呈现出的多种形态:一是互联网社交,各类社交媒体构建起虚拟的社交空间;二是网络游戏,其凭借互动性和趣味性吸引大学生,使其养成游戏依赖;三是数字内容消费,各类视频、音乐、电子书平台为大学生提供了丰富的精神文化产品。文章进一步剖析自我控制能力的概念内涵,指出自控能力不足会对大学生学业表现、心理健康和社会适应能力产生负面影响。文章从多方面着手,提出培养大学生自控能力的建议。个人层面,需要提高时间管理能力,利用碎片化时间管理工具;采用目标设定和达成技巧,运用SMART原则;提升情绪管理能力,利用学习管理软件进行自我调节。学校层面,需要构建网络素养教育体系,运用翻转课堂等模式进行情境教学。家庭层面,需要开展家长培训,建立良好的网络使用规范。新媒体平台层面,需要提高算法透明度,推出助力自我控制的工具等。

关键词：新媒体大学生网络娱乐自我控制能力培养策略

Bonding quality of Yb:Y_3Al_5O_(12)/Y_3Al_5O_(12) composite crystals

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Science China(Technological Sciences) 2008年第9期51卷 1457-1463页

作者： Bourdet GILBeT j C CHANTeLOUP ecole Polytechnique Laboratoire pour l'Utilisation des Lasers IntensesRoute de Saclay Palaiseau 91128 France

The Yb:Y3Al5O12/Y3Al5O12 (Yb:YAG/YAG) composite crystals were prepared by thermal bonding method with different technological parameters. The bonding in-terface of the composite crystals were observed by optical microscope, scanning electron microscope, and atom force microscope. The light scattering experiments for bonding interface of the composite crystals were measured by the laser and transmission spectra. All experiments show that high-quality Yb:YAG/YAG com-posite crystals without space transition layer and light scattering on the bonding interface can be obtained by thermal bonding method under appropriate technological parameters.

关键词： Yb:YAG/YAG bonding quality light scattering transmission spectra

effect of Phosphatization on element Concentration of Cobalt-Rich Ferromanganese Crusts

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Acta Geologica Sinica(english edition) 2005年第3期79卷 349-355页

作者： PANjiahuax e.H.DeCARLO YANGYi LIUShuqin YOUGuoqin InstituteofMineralResources ChineseAcademyofGeologicalSciencesBeijing100037China DepartmentofOceanography UniversityofHawaii21000PopeRd.HonoluluHawaii96822U.S.A. TheGraduateSchoolofTheChineseAcademyofSciences YuquanRoad18Beijing100049China

A detailed study on a small scale of the effect of phosphatization on the chemistry of marine cobalt-rich ferromanganese crusts supplies useful information for the evaluation and comprehensive utilization of crust mineral resources. Sub-samples from top to bottom of a 10-cm thick sample from the NW Pacific Magellan seamount were taken at 5 mm intervals. The concentration profiles of ore-forming and rare earth elements show that obvious differences exist between young unphosphatized crusts and old phosphatized crusts. In the old crusts Fe, Mn, Si, Al, Zn, Mg, Co, Ni and Cu elements are depleted and Ca, P, Sr, Ba and Pb elements are enriched. The order of depletion is Co > Ni > Mg > Al > Mn > Si> Cu > Zn > Fe, while the order of enrichment is P > Ca > Ba > Pb > Sr. The phosphate mineral controls the concentration variation of the ore-forming elements in crusts and causes loss of the main ore-forming elements such as Co and Ni. The phosphatization also affects the abundance of Rees in the crusts. Rees are more abundant and the content of Ce in old crusts is higher than that in young crusts, however, the pattern of Rees and their fractionation characteristics in new and old crusts are not fundamentally changed. A Y-positive anomaly in old crusts has no relationship to the phosphatization.

关键词： phosphatization ore-forming element Ree Co-rich crust concentration effect Pacific

Digital twin intelligent system for industrial internet of things-based big data management and analysis in cloud environments

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Virtual Reality & Intelligent Hardware 2022年第4期4卷 279-291页

作者： Christos L.STeRGIOU Kostas e.PSANNIS Department of Applied Informatics University of MacedoniaGreece

This work surveys and illustrates multiple open challenges in the field of industrial Internet of Things(IoT)-based big data management and analysis in cloud *** arising from the fields of machine learning in cloud infrastructures,artificial intelligence techniques for big data analytics in cloud environments,and federated learning cloud systems are ***,reinforcement learning,which is a novel technique that allows large cloud-based data centers,to allocate more energy-efficient resources is ***,we propose an architecture that attempts to combine the features offered by several cloud providers to achieve an energy-efficient industrial IoT-based big data management framework(eeIBDM)established outside of every user in the *** data can be integrated with techniques such as reinforcement and federated learning to achieve a digital twin scenario for the virtual representation of industrial IoT-based big data of machines and room ***,we propose an algorithm for determining the energy consumption of the infrastructure by evaluating the eeIBDM ***,future directions for the expansion of this research are discussed.

关键词： Machine learning IoT Big data Cloud computing Management Analytics Digital twin Scenario energy efficiency

Moderate deviations from the hydrodynamic limit of the symmetric exclusion process

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Science China Mathematics 2003年第5期46卷 577-592页

作者：高付清 j.Quastel School of Mathematics and Statistics Wuhan University Wuhan 430072 China Departments of Mathematics and Statistics University of Toronto Toronto ON M5S 3G3 Canada

We investigate the moderate deviations from the hydrodynamic limit of the empirical density ofparticles and obtain a moderate deviation principle for a symmetric exclusion process.

关键词： exclusion process, hydrodynamic limit, large deviations, moderate deviations.

Pancreatic cancer: Advances in treatment

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World journal of Gastroenterology 2014年第28期20卷 9354-9360页

作者： Somala Mohammed George Van Buren Ⅱ William e Fisher The elkins Pancreas Center Michael E DeBakey Department of Surgeryand Dan L Duncan Cancer CenterBaylor College of Medicine

Pancreatic cancer is a leading cause of cancer mortality and the incidence of this disease is expected to continue *** patients with pancreatic cancer have traditionally faced a dismal prognosis,over the past several years various advances in diagnosis and treatment have begun to positively impact this *** of effective combinations of existing chemotherapeutic agents,such as the FOLFIRINOX and the gemcitabine+nab-paclitaxel regimen,has improved survival for selected patients although concerns regarding their toxicity profiles remain.A better understanding of pancreatic carcinogenesis has identified several pre-malignant precursor lesions,such as pancreatic intraepithelial neoplasias,intraductal papillary mucinous neoplasms,and cystic *** technology has also evolved dramatically so as to allow early detection of these lesions and thereby facilitate earlier *** remains a cornerstone of treatment for patients with resectable pancreatic tumors,and advances in surgical technique have allowed patients to undergo resection with decreasing perioperative morbidity and *** has also become feasible in selected patients with borderline resectable tumors as a result of neoadjuvant ***,pancreatectomy involving vascular reconstruction and pancreatectomy with minimally invasive techniques have demonstrated safety without significantly compromising oncologic ***,a deeper understanding of molecular aberrations contributing to the development of pancreatic cancer shows promise for future development of more targeted and safe therapeutic agents.

关键词： Pancreatic cancer Pancreaticoduodenectomy Treatment advances Pancreatic oncology Chemotherapy FOLFIRINOX Pancreatic resection

冲洗针头液流抛光技术治疗白内障超声乳化术后PCO的疗效观察

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中国中医眼科杂志 2024年第9期34卷 824-828页

作者：杨永明王娥张亚娟陕西省咸阳市第一人民医院咸阳712099

目的观察冲洗针头液流抛光与传统注吸头机械抛光对白内障超声乳化术后晶状体后囊膜混浊(PCO)的疗效和安全性。方法纳入2020年6月—2020年12月咸阳市第一人民医院眼科诊断为年龄相关性白内障患者100例(200只眼),随机分为对照组和观察组... 详细信息

目的观察冲洗针头液流抛光与传统注吸头机械抛光对白内障超声乳化术后晶状体后囊膜混浊(PCO)的疗效和安全性。方法纳入2020年6月—2020年12月咸阳市第一人民医院眼科诊断为年龄相关性白内障患者100例(200只眼),随机分为对照组和观察组,最终纳入对照组47例(94只眼),观察组48例(96只眼)。2组患者均行常规白内障超声乳化吸除术后,对照组术中采用注吸头进行后囊膜抛光,再植入人工晶体。观察组植入人工晶体并在囊袋内旋转360°,采用冲洗针头液流抛光后囊膜。记录术前、术后1 d、7 d、1年的最佳矫正视力(BCVA),术后1年PCO评分和后囊膜激光切开率。结果 (1)BCVA:观察组术后各时间点BCVA均较术前改善,差异均有统计学意义(t1 d=36.759、t7 d=40.101、t1年=47.629,均P=0.000);对照组术后各时间点BCVA均较术前改善,差异均有统计学意义(t1 d=52.429、t7 d=56.829、t1年=62.487,均P=0.000)。2组间术后1 d和7 d BCVA比较,差异均无统计学意义(P>0.05),观察组术后1年BCVA优于对照组,差异有统计学意义(t=2.709,P=0.007)。(2)PCO评分:观察组PCO分值为(0.13±0.07)分,低于对照组的(0.25±0.15)分,差异有统计学意义(t=7.090,P=0.000)。(3)后囊激光切开率:2组后囊激光切开率比较,差异无统计学意义(P>0.05)。2组术中和术后均未发生并发症。结论冲洗针头液流抛光技术可预防白内障术后PCO的发生,操作简单、经济实用、安全可靠,可降低白内障术后PCO发生率,具有一定推广价值。

关键词：白内障超声乳化摘除手术人工晶体后囊膜混浊

Plant-based nutrition for healthcare professionals： implementing diet as aprimary modality in the prevention and treatment of chronic disease

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journal of Geriatric Cardiology 2017年第5期14卷 355-368页

作者： julieanna Hever Raymond j Cronise To Your Health Fitness and Nutrition Beverly Hills CA USA Thermogenex Huntsville AL USA

Cardiovascular disease remains the world＇s leading cause of death. Yet, we have known for decades that the vast majority of athero-sclerosis and its subsequent morbidity and mortality are influenced predominantly by diet. This paper will describe a health-promoting wholefood, plant-based diet; delineate macro- and micro-nulxition, emphasizing specific geriatric concerns; and offer guidance to physicians andother healthcare practitioners to support patients in successfully utilizing nutrition to improve their health.

关键词： Aging Health span Plant-based nutrition Preventive medicine Vegetarian

Audio-frequency heating of particulate magnetic systems

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China Particuology 2007年第1期5卷 84-92页

作者： B.e. Kashevsky I.V. Prokhorov S.B. Kashevsky A.V. Luikov Heat and Mass Transfer Institute Belarus Academy of Sciences P. Brovka str. 15 Minsk 220072 Belarus

This paper presents theoretical and experimental studies on the magnetodynamics and energy dissipation in suspensions of small ferromagnetic particles with magnetic hysteresis and mechanical mobility in an AC magnetic field. energy absorption by particles suspended in a solid, liquid or gas environment and subjected to high frequency magnetic fields is of great interest for cancer treatment by hyperthermia, chemical technology, biotechnology and smart materials science. Sub-micron needle-like γ-Fe2O3 particles dispersed in liquid were subjected in this study to a 430 Hz magnetic field with an intensity of up to 10^5 A/m. Dynamic magnetization loops were measured in parallel to the energy dissipated in the samples. Combined magnetomechanical dynamics of particle dispersions was simulated by using a chain-of-spheres model allowing for incoherent magnetic field reversal. In liquid dispersions, within the kilohertz frequency range, the mechanical mobility of particles does not interfere with their hysteretic magnetic reversal that makes heat release comparable to that observed with solids; for instance, in the present study using γ-Fe2O3 particles in liquid subjected to 10^4 Hz field exhibited heat release rates from 250 up to 600W oer 1 cm^3 of the dry oarticle content.

关键词： AC magnetic field Particulate materials Audio-frequency heating