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Prerequisite Relations among Knowledge Units:A Case Study of Computer Science Domain

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Computer Modeling in Engineering & Sciences 2022年第12期133卷 639-652页

作者： Fatema Nafa Amal Babour austin Melton Department of Computer Science Salem State UniversitySalemMA 01970USA Information Systems Department Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21589Saudi Arabia Department of Computer Science Kent State UniversityKentOH 44240USA

The importance of prerequisites for education has recently become a promising research *** work proposes a statistical model for measuring dependencies in learning resources between knowledge *** are expected to present knowledge units in a semantically well-organized manner to facilitate students’understanding of the *** proposed model reveals how inner concepts of a knowledge unit are dependent on each other and on concepts not in the knowledge *** help understand the complexity of the inner concepts themselves,WordNet is included as an external knowledge base in *** goal is to develop a model that will enable instructors to evaluate whether or not a learning regime has hidden relationships which might hinder students’ability to understand the *** evaluation,employing three textbooks,shows that the proposed model succeeds in discovering hidden relationships among knowledge units in learning resources and in exposing the knowledge gaps in some knowledge units.

关键词： Knowledge graph text mining knowledge unit graph mining

Significance of Vibrio species in the marine organic carbon cycle-A review

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Science China Earth Sciences 2018年第10期61卷 1357-1368页

作者： Xiaohua ZHANG Heyu lIN Xiaolei WANG Brian austin College of Marine life Sciences Ocean University of China Qingdao 266003 China laboratory for Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071 China Institute of Aquaculture University of StirlingStirling FK9 4LA UK

The genus Vibrio,belonging to Gammaproteobacteria of the phylum Proteobacteria,is a genetically and ecologically diverse group of heterotrophic bacteria,that are ubiquitous in marine environments,especially in coastal *** particular,vibrios dominate,*** to 10%of the readily culturable marine bacteria in these *** distribution of Vibrio *** shaped by various environmental parameters,notably temperature,salinity and dissolved organic *** utilize a wide range of organic carbon compounds,including chitin(this may be metabolized by most Vibrio spp.),alginic acid and *** Vibrio *** very short replication times(as short as～10 min),which could facilitate them developing into high biomass content albeit for relatively short *** *** comprise a minor portion(typically^1%of the total bacterioplankton in coastal waters)of the total microbial population,they have been shown to proliferate explosively in response to various nutrient pulses,e.g.,organic nutrients from algae blooms and iron from Saharan ***,Vibrio *** exert large impacts on marine organic carbon cycling especially in marginal *** and related areas of investigation will reveal more about the molecular components and mechanisms involved in Vibrio-mediated biotransformation and remineralization processes.

关键词： Vibrio Ecology Carbon cycle Marine Organic carbon

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“末日焦虑”再次来袭

世界科学 2024年第5期 50-53页

作者：陈洁培泰勒·奥斯汀·哈珀贝茨学院

“你认为我们需要购买枪支吗？”一名学生的问题仿佛使得房间里的温度骤降了几度。当时，我正和其他几位学者、学生以及一位演讲嘉宾共进晚餐。这位演讲嘉宾刚刚发表了一个令人振奋的关于气候正义的演讲。这名学生看到大家困惑不解，继...

“你认为我们需要购买枪支吗？”一名学生的问题仿佛使得房间里的温度骤降了几度。当时，我正和其他几位学者、学生以及一位演讲嘉宾共进晚餐。这位演讲嘉宾刚刚发表了一个令人振奋的关于气候正义的演讲。这名学生看到大家困惑不解，继续澄清道：如果大灾难在短期内不可避免，这意味着人们很快将不得不生活在有围墙的社区里。到时，执政人员都会配枪。她只是想知道应该如何保护自己关心的人。演讲嘉宾花了一点时间消化了这些信息，然后建议这名学生多关心种植蔬菜，而不是购买枪支。

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A model of optimising political expenditures to buy government power

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Economic and Political Studies 2019年第4期7卷 433-453页

作者： austin Murphy Department of Accounting and Finance School of Business AdministrationOakland UniversityRochesterMIUSA

This research develops a model of optimal political expenditures and shows how money inevitably controls government leaders,subject only to a single constraint relating to negative public *** paper demonstrates theoretically why many businesses do not make such investments despite abnormally high returns from the expended political *** particular,firms with less economic resources optimally recognise that they can successfully participate in the political process only in consortium with the dominant players of mutual interests to influence broader government *** largest corporations are therefore able to buy government power with a minimal political outlay.

关键词： lobbying campaign contributions special interests political capital elections investments

Effects of concentration, distance, and application methods of Altriset （Chlorantraniliprole） on eastern subterranean termite （Isoptera： Rhinotermitidae）

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Insect Science 2015年第3期22卷 451-460页

作者： Znar Barwary austin Gorzlancyk Xing Ping Hu Department of Entomology and Plant Pathology Auburn University Auburn AL 36849-5413 USA

The effects of various concentrations, distance, and application methods of Altriset （Chlorantraniliprole） were investigated against one of the most destructive termites, the eastem subterranean termite, Reticulitermesflavipes Kollar. Three laboratory experiments were conducted. First, we examined the concentration effect of treating the soil contiguously to established foraging tunnels at a fixed 1 m distance. The results demonstrated 100% termite control in 19 d posttreatment at 100 and 50μg/g and 27% termite mortality at 25μg/g. Second, we tested the distance effect of the soil treatment （2 and 4 m） on the efficacy of Altriset to the satellite termite populations at a fixed 50/zg/g concentration. This resulted in 100% termite control in 22 d posttreatment at both 2 and 4 m. Third, we examined the effect of differing application methods using 12.5 and 25μg/g prior to the establishment of foraging tunnels at a fixed 1 m distance. This illustrated 100% termite control in 9 d posttreatment at 25μg/g and 12 d posttreatment at 12.5μg/g. The third experiment demonstrated soil treatments that were applied prior to termite tunnel establishment had greater efficacy than applications made post tunnel construction. Our results provide a comprehensive understanding about the efficacy of Altriset treatments on eastern subterranean termites.

关键词： application methods Chlorantraniliprole concentration effect distance effect Reticulitermesflavipes soil treatment

A novel method to fabricate TiAl intermetallic alloy 3D parts using additive manufacturing

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Defence Technology（防务技术） 2017年第2期13卷 72-76页

作者： J.J.S. Dilip H. Miyanaji austin lassell Thomas l. Starr Brent Stucker Rapid Prototyping Center Department of Industrial EngineeringUniversity of LouisvilleLouisvilleKY 40292USA Department of Chemical Engineering University of LouisvilleLouisvilleKY 40292USA 3DSIM 1794 Olympic ParkwaySuite 110Park CityUT 84098USA

The present work explores the feasibility of fabricating porous 3D parts in TiAl intermetallic alloy directly from Tie6Ale4V and Al powders. This approach uses a binder jetting additive manufacturing process followed by reactive sintering. The results demonstrate that the present approach is successful for realizing parts in TiAl intermetallic alloy.

关键词： Additive manufacturing Binder jetting Intermetallic Titanium aluminide Reactive sintering

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Vibrioharveyi: a serious pathogen offish and invertebrates in mariculture

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Marine life Science & Technology 2020年第3期2卷 231-245页

作者： Xiao-Hua Zhang Xinxin He Brian austin MOE Key laboratory of Marine Genetics and Breeding College of Marine Lite Sciences.Ocean University of ChinaQingdao 266003China laboratory for Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China Frontiers Science Center for Deep Ocean Multispheres and Earth System Ocean University of ChinaQingdao 266100China Institute of Aquaculture University of StirlingStirling FK94LAScotlandUK

Vibrio harveyi,which belongs to family Vibrionaceae of class G cunmap rote obacte ria,includes the species *** char iae and *** as its junior *** organism is a well-recognized and serious bacterial pathogen of marine fish and invertebrates,including penaeid shrimp,in *** fish may exhibit a range of lesions,including eye lesions/blindness,gastro-enteritis,muscle necrosis,skin ulcers,and tail rot *** shrimp,*** is regarded as the etiological agent of luminous vibriosis in which affected animals glow in the *** is a second condition of shrimp known as Bolitas negricans where the digestive tract is filled with spheres of sloughed-off *** is recognized that the pathogenicity mechanisms of *** may be different in fish and penaeid *** shrimp,the pathogenicity mechanisms involved the endotoxin lipopolysaccharide,and extracellular proteases,and interaction with *** fish,the pathogenicity mechanisms involved extracellular hemolysin(encoded by duplicate hemolysin genes),which was identified as a phospholipase B and could inactivate fish cells by apoptosis,via the caspase activation *** may enter the so-called viable but nonculturable(VBNC)state,and resuscitation of the VBNC cells may be an important reason for vibriosis outbreaks in *** control measures center on dietary supplements(including probiotics),nonspecific immunostimulants,and vaccines and to a lesser extent antibiotics and other antimicrobial compounds.

关键词： Vibrio harveyi Pathogen Fish Invertebrates Aquaculture

Pleckstrin Homology-like Domain, Family A, Member 1 (PHlDA1): A Multifaceted Cell Survival Factor that Drives Metabolic Disease

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Engineering 2023年第1期20卷 9-18页

作者： Tamana Yousof Jae Hyun Byun Jack Chen Richard C.austin Department of Medicine Division of NephrologyMcMaster UniversityThe Research Institute of St.Joe’s Hamilton and the Hamilton Centre for Kidney ResearchHamiltonOntarioL8N 4A6Canada

Pleckstrin homology-like domain, family A, member 1 (PHlDA1) is a multifaceted intracellular protein belonging to the evolutionarily conserved pleckstrin homology-related domain family. Its murine homologue, T-cell death-associated 51 (TDAG51) gene, was initially discovered for its role in activation-induced apoptosis in T-cell hybridomas. In recent years, PHlDA1 has received increased attention due to its association with obesity, fatty liver disease, diabetes, atherosclerosis, and cancer. Accumulating evidence also supports its role in endoplasmic reticulum stress signaling pathways as a crucial mediator of apoptosis, autophagy, and cell proliferation. In this review, the current knowledge of PHlDA1 gene and protein regulation, localization, and function is summarized. This review highlights the pro- and anti-apoptotic roles of PHlDA1 that contribute to vast array of metabolic diseases.

关键词： ER-stress Metabolism Apoptosis Cell survival PHlDA1

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Celebrating the 95th birthday of Professor Karl *** A biographical timeline of Professor Karl Pister

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Computer Modeling in Engineering & Sciences 2021年第12期 1523-1529,F0003页

作者： Mark austin loc Vu-Quoc 不详

This biographical timeline complements the biography of Professor Karl Pister at the beginning of this special issue in providing the background information of some of Professor Karl Pister’s influential teachers,men... 详细信息

关键词： ster timeline birthday