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混凝土 2015年第4期 99-103页

作者：陈玉苏育民刘艳军 mang tia 北京建筑材料科学研究总院北京100041 美国佛罗里达大学佛罗里达32611

研究使用回收沥青混凝土路面(RAP),使用其中的回收骨料取代混凝土中的部分或全部常规骨料,并应用于路面混凝土上的可行性。在此项目中,我们使用总骨料用量0、20%、40%、70%、100%的回收骨料来取代常规骨料,完成了19个不同配合比的再生... 详细信息

研究使用回收沥青混凝土路面(RAP),使用其中的回收骨料取代混凝土中的部分或全部常规骨料,并应用于路面混凝土上的可行性。在此项目中,我们使用总骨料用量0、20%、40%、70%、100%的回收骨料来取代常规骨料,完成了19个不同配合比的再生混凝土,并进行了力学和热学性能评估。研究表明,随着回收骨料用量的增加,混凝土的抗压强度,劈裂抗拉强度,抗折强度和弹性模量都有一定程度的降低,而热膨胀系数会随着再生骨料的增加而增加。最后,我们通过使用路面系统有限元分析软件FEACONS IV进行分析得出,在佛罗里达典型的温度和荷载条件下,再生混凝土路面系统的性能与常规混凝土路面相仿。

关键词：回收沥青混凝土路面抗压强度弹性模量抗折强度

Effects of dietary supplementation with tropical microfungi Mucor circinelloides and Trichoderma harzianum powder on growth performance,bacterial communities,and the biomass nutritional profile of white shrimp grow-out culture(Litopenaeus vannamei)

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Aquaculture and Fisheries 2024年第2期9卷 245-255页

作者： Robi Binur Salsabila Mutiara Kanti Muharam tia Fahara Magdalena Lenny Situmorang I Nyoman Pugeg Aryantha Gede Suantika Department of Biology Faculty of Mathematics and Natural SciencesUniversitas PapuaJl.Gunung Salju AmbanManokwari98314Indonesia Microbial Biotechnology Research Group School of Life Sciences and TechnologyInstitut Teknologi BandungJl.Ganesha 10Bandung40132Indonesia Biosciences and Biotechnology Research Center Institut Teknologi BandungJl.Ganesha 10Bandung40132Indonesia

Microfungi have been explored further as supplement constituents in shrimp culture due to their rich protein,lipid,essential amino acids,fatty acids,and various bioactive *** researchers have evaluated the effects of two microfungi powders(Mucor circinelloides and Trichoderma harzianum)as feed supplements on growth performance,bacterial communities,and the biomass nutritional profile of white shrimp(Litopenaeus vannamei).The results showed that commercial/artificial feed(Feng-Li)with supplementation microfungi powder had a different effect on white shrimp growth performance than control after 62 days of the grow-out *** with 1.5%*** powder(M-2)could improve the growth performance of white shrimp,especially the survival rate(81.33%),final body weight(5.21 g),and shrimp biomass(211.35 g).In contrast,supplementation with 1.5%*** powder(T-2)did not improve the growth performance of white shrimp compared to control(p>0.05).Furthermore,it also affected the profile of the bacterial community in culture water as well as in shrimp *** with both microfungi could reduce the total number of bacteria in culture water at the end of the experiment,where the lowest number was obtained in treatment T-2(3.9×10^(5)CFU/mL),followed by M-2(9.9×10^(5)CFU/mL)and control(4.4×10^(6)CFU/mL).In the culture water,20 isolates of culturable bacteria were found during the trial,with the dominant bacteria in M-2:Bacillus cereus,Bacillus velezensis,Gordonia polyisoprenivorans,T-2:Acinetobacter sp.,Gordonia polyisoprenivorans,Micrococcus *** on average well colour development(AWCD),the highest bacterial activity was in the M-2(0.297-0.707),followed by T-2(0.226-0.717)and control(0.094-0.694).The highest substrate group utilised in M-2 and T-2 were polymers(0.896 and 1.348)and control:amines(0.100).The highest Shannon diversity index was obtained in the M-2(2.508),followed by control(2.286)and the T-2(2.157).As many as

关键词： Microfungi Nutrition White shrimp Litopenaeus vannamei Grow-out Bacterial activity Probiotic bacteria

Phenazines:Natural products for microbial growth control

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hLife 2024年第3期2卷 100-112页

作者： Cátia A Sousa Marta Ribeiro Francisca Vale Manuel Simões ISEP/P.PORTO School of EngineeringPolytechnic of PortoPortoPortugal LEPABE-Laboratory for Process Engineering EnvironmentBiotechnology and EnergyFaculty of EngineeringUniversity of PortoPortoPortugal ALiCE-Associate Laboratory in Chemical Engineering Faculty of EngineeringUniversity of PortoPortoPortugal

The unprecedented problem of antibiotic resistance has become a major challenge for public health,which has contributed to an increase in infections caused by such *** microbial infections,typically biofilm-related,are alsocoupled to an increase in human mortality and ***,the demand for new antimicrobial agents hasincreased along with the evolution of microbial resistance *** products produced by bacteria,such as phenazines,have been recognized as an important source for the development of new antimicrobial agents,through the exploitation of their capacity to increase oxidative stress in other *** are a large groupof nitrogen-containing heterocyclic compounds and are essential for several cellular processes including iron acquisition,signaling events,enzymatic processes,and biofilm ***-inspired antibiotics(i.e.,2-bromo-1-hydroxyphenazine,2,4-dibromo-1-hydroxyphenazine,bromophenazine-21,phenazine-13,and phenazine-14)are veryactive against a wide range of gram-positive and gram-negative bacteria,including those associated with severe *** this study,mechanisms of phenazine-inspired antibiotics in the cellular processes of planktonic and sessilebacteria are ***,the application of phenazine-inspired antibiotics for the eradication of multidrugresistant planktonic and biofilm bacterial infections is also reviewed.

关键词： antimicrobial agents biofilms multidrug-resistant natural products phenazines

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沥青路面骨料再生混凝土的力学性能研究

新型建筑材料 2014年第12期41卷 38-42页

作者：陈玉刘艳军苏育民 mang tia 北京建筑材料科学研究总院北京100041 Department of Civil and Coastal Engineering University of Florida

研究了使用回收沥青混凝土路面(RAP)中的再生骨料取代混凝土中的部分或全部天然骨料,并应用于路面混凝土中的可行性。用0、20%、40%、70%和100%的再生骨料取代天然骨料,进行了不同配合比的再生混凝土性能试验。研究表明,随着再生骨料用... 详细信息

研究了使用回收沥青混凝土路面(RAP)中的再生骨料取代混凝土中的部分或全部天然骨料,并应用于路面混凝土中的可行性。用0、20%、40%、70%和100%的再生骨料取代天然骨料,进行了不同配合比的再生混凝土性能试验。研究表明,随着再生骨料用量的增加,混凝土的工作性能下降,破坏形态发生了变化,混凝土的抗压强度、劈裂抗拉强度和抗折强度都有不同程度的降低。使用20%和40%再生骨料制备的再生混凝土可以满足现有的路面强度要求。

关键词：回收沥青混凝土路面再生混凝土再生骨料

香椿的树木年轮宽度与超年生殖行为的相互关系:对树轮学研究的警示

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Journal of Plant Ecology 2024年第1期17卷 165-171页

作者： Monique Silva Costa Thaís Jorge de Vasconcellos Claudio Sergio Lisi Arno Fritz Neves Brandes Mario Tomazello-Filho Cátia Henriques Callado Instituto de Aplicação Fernando Rodrigues da Silveira Universidade do Estado do Rio de JaneiroRua Barão de Itapagipe96.Rio Comprido 20261-005Rio de JaneiroBrazil Laboratório de Anatomia Vegetal Universidade do Estado do Rio de JaneiroRua São Francisco Xavier524Maracanã20550-013Rio de JaneiroBrazil Departamento de Biologia Universidade Federal de SergipeAv.Marechal Rondon s/n-Rosa Elze.São Cristóvão 49100-000SergipeBrazil Departamento de Biologia Geral Universidade Federal FluminenseRua Prof.Marcos Waldemar de Freitas ReisS/N.Gragoatá24210-201Rio de JaneiroBrazil Escola Superior de Agricultura Luiz de Queiroz Universidade de São PauloAv.Pádua Dias11.Piracicaba 13418-900São PauloBrazil

资源分配到生殖过程涉及到生态和进化因素,可能会减少植物的营养生长。这种相互关系在自然界中不容易观察到,因为有许多参数可以限制生殖结构的产生或生物量的增加。我们将香椿(Cedrela odorata L.,楝科)在里约热内卢州大西洋森林中的... 详细信息

资源分配到生殖过程涉及到生态和进化因素,可能会减少植物的营养生长。这种相互关系在自然界中不容易观察到,因为有许多参数可以限制生殖结构的产生或生物量的增加。我们将香椿(Cedrela odorata L.,楝科)在里约热内卢州大西洋森林中的树木年轮宽度与超年生殖行为相关联。总体而言,生殖结构的发育发生在湿润的年份,在生长季初期没有出现水分亏缺。然而,在这些年份,树木年轮宽度较小。这些结果可能与树木年轮宽度与当地气候之间缺乏相关性有关。因此,我们强调在径向生长研究中纳入生殖数据的重要性,以扩大对热带森林生长变异性的理解。

关键词：植物生长策略树木年轮学树木生态学生殖权衡

Sustainable Laboratory Capacity Building in Sierra Leone:From Ebola to COVID-19

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China CDC weekly 2023年第28期5卷 632-636页

作者： Lili Wang Alie Brima tia Bing Xu Xiaopeng Qi Doris Harding Center for Global Public Health Chinese Center for Disease Control and PreventionBeijingChina Sierra Leone-China Friendship Biological Safety Laboratory Ministry of Health and SanitationFreetownSierra Leone Ministry of Health and Sanitation FreetownSierra Leone

The onset of the Ebola outbreak in 2014 originated in Guinea and proceeded to swiftly reach Sierra Leone and Liberia(1).Unfortunately,these nations were critically deficient in their capacity for pathogenic testing and diagnostics,the availability of healthcare workers,and their supply of epidemic prevention materials,thereby impeding their ability to address the outbreak efficiently(2).This grave scenario underscored the need for support from the worldwide community.

关键词： Ebola prevention thereby

COVID-19 vaccination in pregnancy:A review of maternal and infant benefits

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Gynecology and Obstetrics Clinical Medicine 2022年第3期2卷 124-128页

作者： Emmanuel Lamptey Ephraim Kumi Senkyire Moses tia Banoya Stanley Yaidoo Institute of Life and Earth Sciences(Including Health and Agriculture) Pan African UniversityUniversity of IbadanNigeria Ga-West Municipal Hospital Ghana Health Service Ghana Methodist University Ghana St.Gregory Catholic Hospital Kasoa Ghana

Pregnant women with COVID-19 are more likely to be admitted to the intensive care unit and their babies born *** trials excluded pregnant women from the vaccine and safety data were ***,an increasing number of studies have demonstrated the safety and immunogenicity of the COVID-19 vaccines for pregnant women and their babies including evidence of maternal transfer of *** addition to these benefits,the vaccines are proved to be effective for both the pregnant women and *** current evidence supports the safety,immunogenicity of the COVID-19 vaccine and its effectiveness in reducing the theoretical risk of the infection among pregnant women and their *** review summarizes the recent data on the beneficial effects of COVID-19 immunization on both the pregnant mother and infant.

关键词： COVID-19 vaccines Antenatal Immunization Infants Pregnant

Deposition of nanoparticles on school eyeglasses in urban and rural areas:A methodology for a more real assessment of the possible impacts

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Geoscience Frontiers 2022年第1期13卷 498-505页

作者： Kátia Martinello James C.Hower Guilherme L.Dotto Claudete G.Ramos Carlos E.Schnorr Diana Pinto Instituto Inanís Rua Felizardo FurtadoPorto AlegreBrazil University of Kentucky Department of Earth&Environmental SciencesLexingtonKY 40506USA University of Kentucky Center for Applied Energy Research2540 Research Park DriveLexingtonKY 40511USA Chemical Engineering Department Federal University of Santa Maria97105-900 Santa MariaBrazil Department of Civil and Environmental Universidad de la CostaCUCCalle 58#55–66BarranquillaAtlánticoColombia

Because incomplete confirmation is available concerning the influential role of atmosphere contamination on conjunctivitis,myopia,asthma,and allergic rhinitis in Brazil,the focus of the present work is to explore the possible relations among atmosphere contamination and eye *** that a case study on eye diseases,by way of questionnaires supplemented by the investigation of nanoparticles(NPs)on eyeglasses,the study examines the mechanisms in which NPs and ultra-fine particles are deposited on the glasses of children up to 10 years of age in urban and rural *** important connection between atmosphere contaminants and individual protection equipment justifies improving indoor school properties in order could protect children’s eyes,particularly in high-pollution/high-particulate areas.

关键词： Indoor air pollution Nanoparticles Eyes health Allergic reaction Schools

科教融合在生物工程专业实验教学中的应用探讨——以人参皂苷CK抗肝癌靶点的虚拟筛选为例

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广东化工 2024年第1期51卷 161-163,146页

作者：张森惠俊峰杨静姚天宇曾丹赵婧王盼西北大学陕西西安710069

生化分离工程实验在生物工程专业创新性人才培养的过程中起着重要作用。本文以“人参皂苷CK抗肝癌靶点的虚拟筛选”实验为例,探讨了将其作为生化分离工程综合实验教学的可行性。通过将该实验融入生物工程专业实验教学不仅可以增强学生... 详细信息

生化分离工程实验在生物工程专业创新性人才培养的过程中起着重要作用。本文以“人参皂苷CK抗肝癌靶点的虚拟筛选”实验为例,探讨了将其作为生化分离工程综合实验教学的可行性。通过将该实验融入生物工程专业实验教学不仅可以增强学生对专业知识的理解,而且可以拓宽学生对前沿科学发展的认知和视野,从而激发学生的学习兴趣和学习动力并在学习过程中培养他们对现代工具的使用能力和创新性思维。

关键词：生物工程实验教学人参皂苷肝癌网络药理学分子对接