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Frontiers of Environmental Science & Engineering 2024年第4期18卷 103-110页

作者： Mathias Fessler Qingxian Su marlene Mark Jensen Yifeng Zhang Department of Environmental and Resource Engineering Technical University of DenmarkCopenhagenDK-2800Denmark

Magnetotactic bacteria reside in sediments and stratified water *** are named after their ability to synthesize internal magnetic particles that allow them to align and swim along the Earth’s magnetic field ***,we show that two magnetotactic species,Magnetospirillum magneticum strain AMB-1 and Magnetospirillum gryphiswaldense strain MSR-1,are *** *** and *** were able to generate current in microbial fuel cells with maximum power densities of 27 and 11μW/m^(2),*** the presence of the electron shuttle resazurin both species were able to reduce the crystalline iron oxide hematite(Fe_(2)O_(3)).In addition,*** could reduce poorly crystalline iron oxide(FeOOH).Our study adds *** and *** to the growing list of known electroactive bacteria,and implies that electroactivity might be common for bacteria within the Magnetospirillum genus.

关键词： Magnetotactic bacteria Magnetospirillum magneticum Magnetospirillum gryphiswaldense Extracellular electron transfer Microbial fuel cells

Germination of Encholirium spectabile *** Schult.&*** in Response to Temperature and Water Stress

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American Journal of Plant Sciences 2014年第15期5卷 2237-2246页

作者： marlene feliciano figueiredo Francisco Carlos Barboza Nogueira Charles Lobo Pinheiro Selma Freire de Brito Sebastiao Medeiros Filho University of Vale do Acarau—UVA Campus BetaniaCity of SobralBrazil Seed Analysis Laboratory Department of PhytotecnicFederal University of Ceara—UFCCampus do PiciCity of FortalezaBrazil

A study was conducted to examine the effects of different temperatures and water stress on Encholirium spectabile seeds. We evaluated the germination percentage, speed and time of germination of small (4.01 mm), at temperatures of 15°C, 20°C, 25°C, 30°C, 35°C, 40°C and 45°C and a photoperiod of 12 hours of light. Seeds were subjected to osmotic potentials of 0, -0.2, -0.4, -0.6, -0.8, -1.0, -1.2 and -1.4 MPa, induced by solutions of polyethylene glycol. The results indicated an excellent germination of medium and large seeds at the temperatures of 20°C, 25°C, 30°C and 35°C. The temperature of 35°C provided the best mean germination time of large seeds and a higher speed rate of medium and large seeds. E. spectabile seeds germinate in a wide range of water deficit of -0.2 to -1.2 MPa. Germination reduced at concentrations of -1.0 and -1.2 MPa. No germination occurred at -1.4 MPa. Larger seeds showed the higher germination potential than medium and small seeds at the temperatures of 25°C, 30°C and 35°C and in the range ofwater deficit of -0.2 to -1.2 Mpa.

关键词： Seeds Size Native Species Osmotic Potential Polyethylene Glycol Semiarid Region

Hepatic grooves:An observational study at laparoscopic surgery

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World Journal of Experimental Medicine 2024年第2期14卷 97-102页

作者： Shamir O Cawich Dexter A Thomas Fawwaz Mohammed Michael T Gardner marlene Craigie Shaneeta Johnson Ramnanand S Kedambady Department of Surgery University of the West IndiesSt Augustine 000000Trinidad and Tobago Department of Surgery Port of Spain General HospitalPort of Spain 000000Trinidad and Tobago Section of Anatomy Basic Medical SciencesUniversity of the West IndiesKingston 000000Jamaica Department of Radiology University of the West IndiesKingston 000000Jamaica Department of Surgery Morehouse School of MedicineAtlantaGA 30310United States Section of Anatomy Department of Basic Medical SciencesUniversity of the West IndiesKingston KIN7Jamaica

BACKGROUND In traditional descriptions,the upper surface of the liver is smooth and convex,but deep depressions are variants that are present in 5%-40%of *** sought to determine the relationship between surface depressions and the *** To use exploratory laparoscopy to determine the relationship between surface depressions and the *** An observational study was performed in all patients undergoing laparoscopic upper gastro-intestinal operations between January 1,2023 and January 20,2024.A thirty-degree laparoscope was used to inspect the liver and *** surface depressions were present,we recorded patient demographics,presence of diaphragmatic bands,rib protrusions and/or any other source of compression during *** Of 394 patients,343 had normal surface anatomy,and 51(12.9%)had prominent surface depressions on the *** was no significant relationship between the presence of surface depressions and gender nor the presence of rib ***,there was significant association between the presence of surface depressions and diaphragmatic muscular bands(P<0.001).CONCLUSION With these data,the diaphragmatic-band theory has gained increased importance over other theories for surface *** studies are warranted using cross sectional imaging to confirm relationships with intersectional planes as well as beta-catenin assays in the affected liver parenchyma.

关键词： Liver Variant Vein Hepatic Surgery

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为生活做预算——规划人员退休计划

中国会展 2024年第8期 32-39页

作者： marlene Goldman 不详

会议和活动可以提供信息和乐趣,但在某些时候,是时候退休了。提前制定计划至关重要。对于会议策划者来说,活动管理的关键之一是要从长远的角度考虑如何在预算范围内制定解决方案。规划者在为个人生活做预算和计划时,包括为自己的退休生... 详细信息

会议和活动可以提供信息和乐趣,但在某些时候,是时候退休了。提前制定计划至关重要。对于会议策划者来说,活动管理的关键之一是要从长远的角度考虑如何在预算范围内制定解决方案。规划者在为个人生活做预算和计划时,包括为自己的退休生活做计划时,也可以利用同样的深谋远虑。可以花多少钱以及如何在预算内生活设定一个框架,这既适用于成功的会议,也适用于个人生活。

关键词：预算范围退休生活深谋远虑规划者策划者退休计划解决方案

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食品和饮料趋势简单和健康满足可持续性

中国会展 2024年第14期 36-43页

作者： marlene Goldman 不详

提供自助餐是给与会者提供选择的一个简单方法。去年在拉斯维加斯举行的SEMA展会上,为SEMA(专业设备市场协会)理事会和网络成员举办了活动。协会策划人员面临的一个关键挑战是在活动期间跟上与会者对食品和饮料的偏好。

关键词：策划人员网络成员自助餐可持续性拉斯维加斯 SEMA 饮料食品

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混合型会议活动正在形成一种文化

中国会展 2024年第10期 36-41页

作者： marlene Goldman 不详

在新冠疫情引发的所有趋势中,混合型会议和活动可能会在未来几年持续下去。随着2023年即将结束,许多金融和保险会议策划者很高兴地看到,大多数与会者比以往任何时候都更喜欢亲自参加会议。但是,正如活动现场与会者的活力激发了整个行业... 详细信息

在新冠疫情引发的所有趋势中,混合型会议和活动可能会在未来几年持续下去。随着2023年即将结束,许多金融和保险会议策划者很高兴地看到,大多数与会者比以往任何时候都更喜欢亲自参加会议。但是,正如活动现场与会者的活力激发了整个行业的活力一样,混合选项的灵活性也激发了虚拟人群的活力。问题是,接下来会发生什么?

关键词：策划者活力激发灵活性文化混合型虚拟人群会议

Prevalence and Factors Associated with Anemia among People Living with Human Immunodeficiency Virus Followed at the Outpatient Treatment Centre of Panzi General Referral Hospital in Eastern Democratic Republic of Congo

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Journal of Biosciences and Medicines 2024年第3期12卷 259-274页

作者： marlene Abedi Zalufa Jean-Paulin Mbo Mukonkole Aline Byabene Kusinza Nicolas Vignier Dieudonné Bihehe Masemo David Willy Shamputi Omari Mukanga Lampard Marie Hatem Department of Internal Medicine Panzi General Referral Hospital Bukavu Democratic Republic of Congo Evangelical University in Africa Bukavu Democratic Republic of Congo Statistics Department Panzi General Referral Hospital Bukavu Democratic Republic of Congo International Centre for The Advanced Research and Training-ICART Panzi Foundation Bukavu Democratic Republic of Congo Faculty of Medicine University of Kisangani Kisangani Democratic Republic of Congo Service des Maladies Infectieuses et Tropicales CHU Avicenne Bobigny France Sorbonne University Paris France School of Public Health Department of Social and Preventive Medicine Université de Montréal Montréal Canada

Introduction: Anemia in people living with human immunodeficiency virus (PLHIV) is a major health problem. Although anemia often responds to combination antiretroviral therapy, many patients remain anemic despite treatment, and such persistent anemia continues to adversely affect prognosis, regardless of drug response. Scientists have identified some of the factors involved. However, the mechanisms put in place have not been effective in overcoming them. Examples include the withdrawal of zidovudine from antiretroviral treatment lines, iron and folate supplementation, etc. Anemia is still a major concern in HIV-positive patients. The aim of this study is to assess the prevalence of anemia and its associated factors among PLHIV followed up at the outpatient treatment centre (CTA) of the Panzi General Reference Hospital (HGR) in South Kivu, Democratic Republic of Congo (DRC). Method: We conducted a cross-sectional, comparative study of 276 HIV-infected adults on antiretroviral therapy (ART) followed up at the CTA of Panzi HGR. Socio-demographic and nutritional parameters were collected using a survey questionnaire, and clinical assessment and nutritional status were performed at the centre. Hemoglobin, seric albumin and viral load determinations were performed at the HGRP laboratory. We constructed univariate and multivariate logistic regression models to assess factors associated with anemia in people living with HIV/AIDS. Results: We found a prevalence of anemia of 39.4%, including 4.1% severe anemia, 17.7% moderate anemia and 17.5% mild anemia. After multivariate adjustment, the factors associated with anemia in our PLHIV were: moderate undernutrition (aOR = 1.26;95% CI: 1.50 - 4.20;p = 0.001), severe undernutrition (aOR = 115.4;95% CI: 2.04 - 164.52;p = 0.021), hypoalbuminemia (aOR = 2.11;95% CI: 1.87 - 5.10;p = 0.004) and the lower degree of dietary diversity (aOR = 1.56;95% CI: 1.10 - 4.32;p = 0.034). Conclusion: The prevalence of anemia in PLHIV on ART is high.

关键词： Anemia HIV/AIDS Undernutrition PANZI Hospital

Stricter regulation applies to antimicrobial substances when used as biocides compared to cosmetics under current EU legislation

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Emerging Contaminants 2022年第1期8卷 229-242页

作者： Diana Kaattstroom Anna Beronius Christina Ruden marleneÅgerstrand Department of Environmental Science Stockholm UniversityStockholmSweden Institute of Environmental Medicine Karolinska InstituteStockholmSweden

Antimicrobial substances are substances that have the ability to kill or slow down the growth of microorganisms such as bacteria,algae and *** of microorganisms to low concentrations of antimicrobial substances may lead to the development of antimicrobial *** protect human health and the environment and to limit resistance,the risks for the release of these substances into the environment should be minimized from all *** the current EU legal framework,some specific uses of antimicrobial substances are strictly regulated whereas others are *** antimicrobial substances are used as active substances in biocidal products,such as disinfectants,they are regulated by Biocidal Products *** the same substances are used as preservatives in cosmetic products they fall under Cosmetic Products *** this paper,we investigated how the regulation of antimicrobial substances differ when used in biocidal products compared to cosmetic *** was achieved by performing a systematic comparison using document analysis with focus on aims,scope,information requirements,and risk assessment procedures for biocidal active substances and cosmetic *** of the main differences identified is that no environmental data or environmental risk assessment are required for approval of cosmetic *** contrast,environmental data and risk assessment for both the active substances and one representative product would be required for the approval of the same substance if used as a biocidal active *** means first that a substance not approved for use in biocidal products due to its hazardous environmental properties can still be approved as a cosmetic *** second,the environmental release of antimicrobial substances from cosmetic products remains unassessed and uncontrolled,despite the obvious risks of cosmetic ingredients being emitted into the environment via *** this,we recommend that

关键词： Biocides Cosmetics Chemicals regulation Environmental risk assessment One substance one assessment Antimicrobial substances

Sperm limitation affects sex allocation in a parasitoid wasp Nasonia vitripennis

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Insect Science 2019年第5期26卷 853-862页

作者： marlene Chirault Christophe Bressac marlene Goubault Charlotte Lecureuil Institut de Recherche sur la Biologie de I'lnsecte UMR 7261 CNRS - Universite de ToursFaculte des Sciences et TechniquesParc GrandmontToursFrance

Insect reproduction is influenced by various external factors including temperature, a well-studied constraint. We investigated to what extent different levels of sperm limitation of males exposed to different heat stresses (34 and 36℃) afFect fem ales' offspring production and sex allocation in Nasonia vitripennis. In this haplodiploid parasitoid wasp attacking different species of pest flies, we investigated the effect of the quantity of sperm females received and stored in their spermatheca on their sperm use decisions, hence sex allocation, over successive ovipositions. In particular, we compared the sex allocation of females presenting three levels of sperm limitation (i.e.,mated with control, 34 ℃ heat-stressed or 36℃heat-stressed males) on each host they parasitized. To disentangle the potential reduction of sperm quality after a heat stress exposure from that of sperm quantity, we also explored the clutch size and sex ratio produced by fem ales that were partially sperm limited after copulating with multiply mated males. Independently of their sperm numbers, all types of fem ales produced a similar total number of offspring, but the more limited ones had fewer daughters. Sperm limitation further affected the distribution of daughters' production across *** addition to constraints acting on female physiology, male fertility should therefore be considered in studies measuring reproductive outputs of insects submitted to heat stresses.

关键词： heat stress multiple mating offspring production dynamic sex ratio sperm stock sperm use

Do males choose their mates in the lekking moth Achroia grisella？ Influence of female body mass and male reproductive status on male mate choice

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Insect Science 2018年第5期25卷 861-868页

作者： marlene Goubault Rebecca Burlaud Institut de Recherche sur la Biologie de I'Insecte UMR 7261 CNRS-Universite Francois-Rabelais Tours France

Lekking males aggregate to attract females and contribute solely to egg fer- tilization, without any further parental care. Evolutionary theory therefore predicts them to be nonchoosy toward their mates, because any lost mating opportunities would out- weigh the benefits associated with such preferences. Nevertheless, due to time costs, the production of energetically costly sexual displays, and potential sperm limitation, the mat- ing effort of lekking males is often considerable. These factors, combined with the fact that many females of varying quality are likely to visit leks, could favor the evolution of male mate preferences. Here, we show that males of the lekking lesser wax moth, Achroia grisella, were indeed more likely to mate with heavier females in choice experiments, even at their virgin mating （i.e., when their reproductive resources have not yet been depleted by previous matings）. This differential female mating success could not be attributed to female behavior as heavy and light females showed similar motivation to mate （i.e., la- tency to approach the males） and time to copulate. Males seem to benefit from mating with heavier females, as fecundity positively correlated with female mass. This new em- pirical evidence shows that male mate choice may have been tmderestimated in lekking species

关键词： fecundity lek lesser wax moth mate choice mating status sexual behavior