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Impact of urbanization on plant diversity: A case study in built-up areas of Beijing

Forestry Studies in China 2008年第3期10卷 179-188页

作者： LIANG Yao-qin LI Jing-wen LI Jing Sanna katrina VALIMAKI Key Laboratory for Silviculture and Conservation of Ministry of Education Beijing Forestry University Beijing 100083 P. R. China School of Environmental and Urban Studies Shenzhen Graduate School Peking University Shenzhen 518055 E R. China Department of Forest Ecology University of Helsinki Helsinki FI-00014 Finland

Urbanization is developing rapidly in the world, which seriously changes the habitat of organisms and has clearly a negative effect on biodiversity. Preservation of biodiversity is crucial in urban planning and management, which is also an important symbol for the level of greening. Problems such as scarcity of urban green space and plant species have become obstacles to the establishment of ecological friendly cities. However, coexistence of nature and modernization, as well the coordination of economic development and biodiversity, are goals that people are seeking. We have taken the builtup areas of Beijing as a study case and discussed the impacts of urbanization on plant diversity, with the support of fieldwork and SPOT remote sensing data. The results are as follows： 1） in the process of urbanization, exotic plants have been widely introduced, which has affected species composition and the proportion of native plants; it is clear that artificial green spaces always will have a lower level of plant diversity than natural green spaces; 2） functional differences of green space types partially decide their species abundance, so that plant diversity in greenbelts and streets is generally lower than in parks; 3） the spatial variety of plant diversity contributes much to the imbalance of district de- velopment and the planning of different functional zones; this variation is embodied in different ring-belts and directions; 4） habitat fragmentation also affects plant diversity to a great extent; there is a significant positive correlation between high fragmentation and low plant diversity. According our results, some suggestions are proposed, which would be suitable for the preservation of plant di- versity and ecological improvement during urbanization.

关键词： urbanization plant species diversity landscape fragmentation

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Discovering the roles of subsurface microorganisms: Progress and future of deep biosphere investigation

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Chinese Science Bulletin 2013年第4期58卷 456-467页

作者： WANG FengPing LU ShuLin ORCUTT Beth N XIE Wei CHEN Ying XIAO Xiang EDWARDS katrina J State Key Laboratory of Microbial Metabolism and State Key Laboratory of Ocean Engineering Shanghai Jiao Tong University Key Laboratory of Systems Biomedicine Ministry of Education Shanghai Jiao Tong University Center for Geomicrobiology Aarhus University Bigelow Laboratory for Ocean Sciences 60 Bigelow Drive School of Ocean and Earth Sciences Tongji University The University of Southern California Departments of Biological & Earth Sciences

The discovery of the marine "deep biosphere"-microorganisms living deep below the seafloor-is one of the most significant and exciting discoveries since the ocean drilling program began more than 40 years ago. Study of the deep biosphere has become a research frontier and a hot spot both for geological and biological sciences. Here, we introduce the history of the discovery of the deep biosphere, and then we describe the types of environments for life below the seafloor, the energy sources for the living creatures, the diversity of organisms within the deep biosphere, and the new tools and technologies used in this research field. We will highlight several recently completed Integrated Ocean Drilling Program Expeditions, which targeted the subseafloor deep biosphere within the crust and sediments. Finally, future research directions and challenges of deep biosphere investigation towards uncovering the roles of subsurface microorganisms will be briefly addressed.

关键词：深部生物圈地下微生物综合大洋钻探计划深海底生物科学多样性沉积物海洋

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Divergent male and female mate preferences do not explain incipient speciation between lizard lineages

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Current Zoology 2020年第5期66卷 485-492页

作者： Claire A.McLean Richard A.Bartle Caroline M.Dong katrina J.Rankin Devi Stuart-Fox School of BioSciences The University of MelbourneParkville VIC 3010Australia Sciences Department Museums VictoriaCarlton VIC 3053Australia

Diversification in sexual signals is often taken as evidenee for the importance of sexual selection in speciatio ***,in order for sexual selection to gen erate reproductive isolati on between populations,both signals and mate preferences must diverge ***,assortative mating may result from multiple behavioral mecha nisms,in eluding female mate pref ere nces,male mate preferences,and male-male competition;yet their relative contributions are rarely ***,we explored the role of mate pref ere nces and male competitive ability as pote ntial barriers to gene flow between 2 diverge nt lineages of the taw ny dragon lizard,Ctenophorus decresii,which differ in male throat *** found stronger behavioral barriers to pairings between southern lineage males and northern lineage females than between northern males and southern females,indicating incomplete and asymmetric behavioral isolating *** results were driven by both male and female mate preferences rather than lineage differences in male competitive *** trasexual selecti on is therefore un likely to drive the outcome of sec on dary contact in ***,despite its widely ack no wledged importa nee in *** results are consiste nt with the emergi ng view that although both male and female mate pref ere nces can diverge alongside sexual signals,speciation is rarely driven by divergent sexual selection alone.

关键词： Ctenophorus decresii hybridization male-male competition secondary contact sexual selection

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Association of in-vitro fertilization twin pregnancy with maternal and perinatal complications

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Asian pacific Journal of Reproduction 2018年第4期7卷 151-154页

作者： Grasmane Adele Purina-Liberte katrina Rots Dmitrijs Miltina Inara Rezeberga Dace Faculty of Medicine Riga Stradis UniversityRigaLatvia Scientific Laboratory of Molecular Genetics Riga Stradis UniversityRigaLatvia Department of Obstetrics and Gynecology Riga Stradis UniversityRigaLatvia Riga Maternity Hospital RigaLatvia

Objective: To analyze maternal and perinatal complication rates in in-vitro fertilization (IVF) twins and spontaneous twin pregnancies. Methods: The information on obstetric and perinatal outcomes and complications covering 95 IVF twins and 165 spontaneous twin pregnancies was collected from the medical records of Riga Maternity Hospital. Statistical analysis and adjustment for confounders was performed using the SPSS v24.0 software. The continuous data were compared using the t-test and Mann-Whitney U test for parametrical and non-parametrical data accordingly. The nominal data were analyzed using Pearson's Chi-square test and Fisher's exact test. Results: The preterm labor risk, intrauterine growth restriction, fetus weight between IVF and spontaneous twins were not statistically significant (P>0.005). At the same time our study revealed a statistically significant association of gestational diabetes and pregnancy induced hypertension with IVF twin pregnancies (P=0.025 and P=0.003, respectively). Moreover, IVF twins had higher odds to be delivered by cesarean section (P=0.001). Conclusions: IVF twin pregnancies are associated with a higher risk of development of gestational diabetes and gestational hypertension than spontaneous twin pregnancies.

关键词： IVF twins Gestational diabetes Pregnancy induced hypertension

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Peripheral vascular bifurcation： features and techniques

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Chinese Medical Journal 2012年第19期125卷 3561-3564页

作者： Gianluca Rigatelli Paolo Cardaioli Dell Avvocata Dan Le Hung Phan katrina Nguyen Quoc Nguyen James Nguyen Thach Nguyen Massimo Giordan Unit of Cardiovascular Diagnosis and Endoluminal Interventions Unit Rovigo General Hospital Rovigo Italy Cardiology Fellow Heart Failure Program the University of Alabama in Birmingham (UAB) Birmingham Alabama USA Weiss Memorial Hospital Chicago Illinois USA University of California at San Diego San Diego California USA University of Indianapolis Indianapolis Indiana USA The University of Arizona Medical Center Tucson Arizona USA Cardiology Department Community Healthcare System St Mary Medical Center Hobart Indiana USA

The systemic nature of vascular atherosclerosis involves all vascular territories.. As interventional cardiologists, we are familiar with coronary artery bifurcation treatment. In other parts of the human body, the vascular tree develops similar bifurcation in the carotid, renal, aortoiliac and tibio-peroneal segments. Even with some differences depending on specific vascular wall composition, the atherosclerotic process affects all such bifurcations in a similar way.

关键词： peripheral vascular interventions systemic atherosclerosis interventional cardiology stenting angioplasty

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Endophthalmitis secondary to globe penetration from hydrogel scleral buckle

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International Journal of Ophthalmology(English edition) 2014年第3期7卷 585-586页

作者： katrina A.Mears Rachel K.Sobel Erin M.Shriver Elliott H.Sohn Department of Ophthalmology and Visual Sciences University of iowa Carver College of Medicine 200 Hawkins Drive Iowa City 52242 Iowa USA

Dear Sir,Iam Dr katrina ***,from the Department of Ophthalmology and Visual Sciences,University of Iowa Carver College of Medicine,200 Hawkins Drive,Iowa City,Iowa,USA.I wish to present a case of endophthalmitis secondary to globe penetration from a hydrogel scleral buckle which,to the best of our knowledge,is the first reported case

关键词： Endophthalmitis secondary to globe penetration from hydrogel scleral buckle Figure

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Removal of sodium diclofenac from aqueous solutions by rice hull biochar

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Biochar 2021年第2期3卷 189-200页

作者： Judilyn QFilipinas Kim katrina PRivera Dennis C.Ong Sheila Mae BPingul‑Ong Ralf Ruffel MAbarca Mark Daniel G.de Luna Environmental Engineering Program National Graduate School of EngineeringUniversity of the Philippines Diliman1101 Quezon CityPhilippines

Diclofenac is an ecotoxic pharmaceutical compound affecting both aquatic and terrestrial ecosystems even at low *** this study,batch adsorption experiments were conducted to remove sodium diclofenac(SD)from aqueous solutions using rice hull biochar(RHB)*** SD removals were obtained with increasing initial SD concentration,RHB dosage,contact time,and decreasing initial *** studies revealed that Langmuir isotherm best fitted the experimental data with the highest coefficient of determination for both pH 2(R2=0.9827)and pH 7(R2=0.9460).For kinetic studies,the pseudo second-order model gave R2=0.9999 for both pH 2 and pH *** removals reached up to 97%at pH 2 and up to 80%at pH *** SD removals were achieved at solution pH lower than the adsorbent pHpzc since electrostatic repulsion was ***-transform infrared analysis showed the major involvement of C=O in the adsorption *** study demonstrated the potential of using agricultural residues such as rice hulls for the treatment of wastewater contaminated with pharmaceutical compounds.

关键词： Adsorption Biochar Isotherm Kinetics Rice hull Sodium diclofenac

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Does low volume high-intensity interval training elicit superior benefits to continuous low to moderate-intensity training in cancer survivors?

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World Journal of Clinical Oncology 2018年第1期9卷 1-12页

作者： Kellie Toohey Kate Pumpa Andrew McKune Julie Cooke katrina D DuBose Desmond Yip Paul Craft Stuart Semple Discipline of Sport and Exercise Science Faculty of Health University of Canberra Research Institute for Sport and Exercise University of Canberra Health Research Institute University of Canberra Discipline of Biokinetics Exercise and Leisure Sciences School of Health Sciences University of Kwa ZuluNatal the College of Health and Hunan Performance East Carolina University ANU Medical School the Australian National University Health Research Institute University of Canberra

AIM To determine the impact ofm low volume high-intensity interval training(LVHIIT) and continuous low to moderate-intensity exercise training(CLMIT) on cardiovascular disease(CVD) risk and health outcomes in cancer *** Sedentary cancer survivors(n=75,aged 51±12year)within 24 months of diagnosis,were randomised into three groups for 12 wk of LVHIIT(n=25),CLMIT(n=25)or control group(n=25).The exercise intervention involved 36 sessions(three sessions per week).The LVHIIT group performed 7 x 30 s intervals(≥85%predicted maximal heart rate)with a 60 s rest between intervals,and the CLMIT group performed continuous aerobic training for 20 min(≤55%predicted maximal heart rate)on a stationary *** variables were measured at baseline and at12 weeks and analysed using a 3 x 2(group x time)repeated measures ANCOVA to evaluate main and interaction *** Significant improvements(time)were observed for seven of the 22 variables(ES 0.35-0.97,P≤0.05).There was an interaction effect(P<0.01)after 12 in the LVHIIT group for six-minute walk test(P<0.01;d=0.97;95%CI:0.36,1.56;large),sit to stand test(P<0.01;d=-0.83;95%CI:-1.40,-0.22;large)and waist circumference reduction(P=0.01;d=-0.48;95%CI:-1.10,0.10;medium).An interaction effect(P<0.01)was also observed for quality of life in both the LVHIIT(d=1.11;95CI:0.50,1.72;large)and CLMIT(d=0.57;95%CI:-0.00,1.20;moderate)compared with the control group(d=-0.15;95%CI:-0.95,0.65;trivial).CONCLUSION Low-volume high-intensity training shows promise as an effective exercise prescription within the cancer population,showing greater improvements in cardiorespiratory fitness,lower body strength and waist circumference compared with traditional CLMIT and control *** LVHIIT and CLMIT improved quality of life.A proposed benefit of LVHIIT is the short duration(3 min)of exercise required,which may entice more cancer survivors to participate in exercise,improving health outcomes and lowing the risk of CVD.

关键词： High-intensity exercise Health Oncology Exercise prescription

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出口资源价格变化对俄罗斯经济的影响

出口资源价格变化对俄罗斯经济的影响

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作者： katrina BARKANE（黛玉）首都经济贸易大学

学位级别：硕士

在这篇论文中,笔者将尝试阐述影响经济增长的因素及自然资源出口量以何种方式影响经济增长;同时也将对其它资源过剩国家的经济进行分析。为了避免评价中的主观性,国外研究将特别被分析。论文中引用的数据均来源于官方自主发布的2005-201...

在这篇论文中,笔者将尝试阐述影响经济增长的因素及自然资源出口量以何种方式影响经济增长;同时也将对其它资源过剩国家的经济进行分析。为了避免评价中的主观性,国外研究将特别被分析。论文中引用的数据均来源于官方自主发布的2005-2014数据。文献评论,笔者将提出经济增长的理论基础和对此问题的研究成果,分析自然资源出口范围与经济增长间的相互依存关系理论,以及油价形成因素。笔者将分析俄罗斯经济的竞争力,探讨其增长对资源出口的依存度。将反思其它自然资源过剩国家在克服经济对自然资源出口依赖性时的经验;此外,还对俄罗斯克服此种依赖提出一些建议。此篇论文的现实性在于,在制裁和油气价波动的情况下,俄罗斯经济需要摆脱对价格的依赖。到目前为止,尤其在俄罗斯联邦,还没有多少针对探寻经济和体制发展指标与资源量指标依存关系的研究。针对依存关系的研究可以帮助我们分析俄罗斯经济过度依赖石油价格的问题,并确定打破这种依赖的新战略。此项研究的目的是分析俄罗斯联邦经济增长对价格变动的依赖性,寻求能够作为现代国家政策、可能存在的减少这种依赖性的解决方案。此项研究的目标在于确定出口资源价格变化对俄罗斯经济的影响。此项研究的对象是俄罗斯经济。此项研究的主题是价格变动及其对俄罗斯经济的影响。在这项研究中,笔者指出当今俄罗斯作为一个国家,其经济增长过度依赖于自然资源出口。笔者认为,解决依赖性问题的最佳方法是:首先,改变税收立法。其次,将从自然资源出口获得的资金投入到技术和创新发展中去。另外,改变油田所有权也是可行的。

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Compartmentalized Metabolic Engineering for Artemisinin Biosynthesis and Effective Malaria Treatment by Oral Delivery of Plant Cells

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Molecular Plant 2016年第11期9卷 1464-1477页

作者： Karan Malhotra Mayavan Subramaniyan Khushboo Rawat Md. Kalamuddin M. Irfan Qureshi Pawan Malhotra Asif Mohmmed katrina Cornish Henry Daniell Shashi Kumar1 Metabolic Engineering Group Malaria Research Group International Centre for Genetic Engineering and Biotechnology Aruna Asaf Ali Marg New Delhi 110067 India Department of Biotechnology Jamia Millia Islamia New Delhi 110025 India Department of Horticulture and Crop Science The Ohio State University Wooster OH 44691 USA Department of Biochemistry School of Dental Medicine University of Pennsylvania Philadelphia PA 19104 USA

Artemisinin is highly effective against drug-resistant malarial parasites, which affects nearly half of the global population and kills 〉500 000 people each year. The primary cost of artemisinin is the very expensive process used to extract and purify the drug from Artemisia annua. Elimination of this apparently unnecessary step will make this potent antimalarial drug affordable to the global population living in endemic regions. Here we reported the oral delivery of a non-protein drug artemisinin biosynthesized （~0.8 mg/g dry weight） at clinically meaningful levels in tobacco by engineering two metabolic pathways targeted to three different cellular compartments （chloroplast, nucleus, and mitochondria）. The doubly transgenic lines showed a three-fold enhancement of isopentenyl pyrophosphate, and targeting AACPR, DBR2, and CYP71AV1 to chloroplasts resulted in higher expression and an efficient photo-oxidation of di- hydroartemisinic acid to artemisinin. Partially purified extracts from the leaves of transgenic tobacco plants inhibited in vitro growth progression of Plasmodium falciparum-infected red blood cells. Oral feeding of whole intact plant cells bioencapsulating the artemisinin reduced the parasitemia levels in challenged mice in comparison with commercial drug. Such novel synergistic approaches should facilitate low-cost production and delivery of artemisinin and other drugs through metabolic engineering of edible plants.

关键词： bioencapsulation oral delivery of plant material dihydroartemisinic acid isopentenyl pyrophosphate,plant transformation drug biosynthesis

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