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Influence of carbon-based cathodes on biofilm composition and electrochemical performance in soil microbial fuel cells

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Environmental Science and Ecotechnology 2023年第4期16卷 106-116页

作者： Arpita Nandy daniel Farkas Belén Pepió-Tárrega Sandra Martinez-Crespiera Eduard Borràs Claudio Avignone-Rossa Mirella Di Lorenzo Department of Chemical Engineering and Centre for Biosensors Bioelectronics&Biodevices(C3Bio)University of BathClaverton DownBA27AYUK Department of Microbial Sciences University of SurreyGuildfordGU27XHUK LEITAT Technological Center C/de la Innovació208225TerrassaBarcelonaSpain

Increasing energy demands and environmental pollution concerns press for sustainable and environmentally friendly *** microbial fuel cell(SMFC)technology has great potential for carbon-neutral bioenergy generation and self-powered electrochemical *** this study,an in-depth assessment on the effect of several carbon-based cathode materials on the electrochemical performance of SMFCs is provided for the first *** innovative carbon nanofibers electrode doped with Fe(CNFFe)is used as cathode material in membrane-less SMFCs,and the performance of the resulting device is compared with SMFCs implementing either Pt-doped carbon cloth(PtC),carbon cloth,or graphite felt(GF)as the *** analyses are integrated with microbial analyses to assess the impact on both electrogenesis and microbial composition of the anodic and cathodic *** results show that CNFFe and PtC generate very stable performances,with a peak power density(with respect to the cathode geometric area)of 25.5 and 30.4 mW m^(−2),*** best electrochemical performance was obtained with GF,with a peak power density of 87.3 mW m^(−2).Taxonomic profiling of the microbial communities revealed differences between anodic and cathodic *** anodes were predominantly enriched with Geobacter and Pseudomonas species,while cathodic communities were dominated by hydrogen-producing and hydrogenotrophic bacteria,indicating H_(2)cycling as a possible electron transfer *** presence of nitrate-reducing bacteria,combined with the results of cyclic voltammograms,suggests microbial nitrate reduction occurred on GF *** results of this study can contribute to the development of effective SMFC design strategies for field implementation.

关键词： Soil microbial fuel cells ORR catalyst Carbon nanofibre Microbial profiling

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Nat Cell Biol:研究发现人肝细胞抵抗HCV感染的代谢过程

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现代生物医学进展 2016年第35期16卷 I0001-I0002页

作者： Gahl Levy, Naomi Habib, Maria Angela Guzzardi, daniel Kitsberg, David Bomze, Elishai Ezra, Merav Cohen, Nir Friedman Yaakov Nahmias Gahl Levy, daniel Kitsberg, David Bomze, Merav Cohen, Nir Friedman Yaakov Nahmias Naomi Habib Maria Angela Guzzardi Elishai Ezra Basak E Uygun Korkut Uygun Martin Trippler Joerg F Schlaak Oren Shibolet Ella H Sklan Joerg Timm Grass Center for Bioengineering Benin School of Computer Science and Engineering The Hebrew University of Jerusalem Jerusalem Israel. Silberman Institute of Life Sciences The Hebrew University of Jerusalem Jerusalem Israel. Klarman Cell Observatory Broad Institute of Harvard and MIT Cambridge Massachusetts USA. Institute of Clinical Physiology National Research Council (CNR) Pisa Italy. Faculty of Engineering Jerusalem College of Technology Jerusalem Israel. Center for Engineering in Medicine Massachusetts General Hospital Boston Massachusetts USA. Department of Gastroenterology and Hepatology University Hospital University Duisburg-Essen Essen Germany. Liver Unit Department of Gastroenterology Tel-Aviv Medical Center and Sackler Faculty of Medicine Tel Aviv Israel. Department of Clinical Microbiology and Immunology Sackler School of Medicine Tel Aviv University Tel Aviv Israel. Institute for Virology Medical Faculty University of D&#x000FC sseldorf D&#x000FC sseldorf Germany.

病毒感染是二十一世纪面临的主要医学挑战之一，从影响全球3％人口的丙肝病毒（HCV）流行病到最近爆发的西尼罗河病毒、寨卡病毒和埃博拉病毒感染。病毒缺乏进行自我复制所需的基础代谢机制。为了解决这个问题，它们劫持它们的宿主的代... 详细信息

病毒感染是二十一世纪面临的主要医学挑战之一，从影响全球3％人口的丙肝病毒（HCV）流行病到最近爆发的西尼罗河病毒、寨卡病毒和埃博拉病毒感染。病毒缺乏进行自我复制所需的基础代谢机制。为了解决这个问题，它们劫持它们的宿主的代谢机制以便完成它们的生命周期和进行增殖。然而，科学家们仍然并没有很好地理解病毒与它们感染的有机体之间在代谢上的相互作用。这主要是因为人基因与代谢过程之间存在复杂的相互作用。

关键词：病毒感染代谢过程 Cell 人肝细胞 Nat HCV 西尼罗河病毒代谢机制

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爱晒的巴黎人

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旅行者 2019年第8期 20-21页

作者：叶天雄不详

我刚到巴黎的时候,法国朋友露西刚刚从科西嘉岛度假回来,晒得全身通红,脖子后面还爆了皮.我关切地问她:"你还好吗?"她骄傲地回答道:"我好得很,看我晒黑得多成功!"我只能假惺惺地点头附和.都晒坏了竟然还能如此洋洋得意!后来我把这个当... 详细信息

我刚到巴黎的时候,法国朋友露西刚刚从科西嘉岛度假回来,晒得全身通红,脖子后面还爆了皮.我关切地问她:"你还好吗?"她骄傲地回答道:"我好得很,看我晒黑得多成功!"我只能假惺惺地点头附和.都晒坏了竟然还能如此洋洋得意!后来我把这个当作一个很典型的案例讲给信仰美白的亚洲女孩们听,告诉她们巴黎女孩子眼里的美与煞白的皮肤没有一点关系.

关键词：巴黎人度假

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又臭又香的羊奶酪

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旅行者 2019年第11期 10012-10013页

作者：叶天雄不详

如果有一天我要彻底搬离巴黎,除了我钟爱的好多家小馆子、永远鲜活精彩的各个博物馆,我最舍不得的一定包括了奶酪,尤其是羊奶酪。如果把法国人的奶酪比作中国人的豆腐,那么羊奶酪就必然要算是臭豆腐了。爱上羊奶酪是一个进阶的过程,至... 详细信息

如果有一天我要彻底搬离巴黎,除了我钟爱的好多家小馆子、永远鲜活精彩的各个博物馆,我最舍不得的一定包括了奶酪,尤其是羊奶酪。如果把法国人的奶酪比作中国人的豆腐,那么羊奶酪就必然要算是臭豆腐了。爱上羊奶酪是一个进阶的过程,至少对我来说是这样。在法国吃喝多年的训练,已经没有什么奶酪可以再将我击败。

关键词：奶酪臭豆腐博物馆法国人羊

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在巴黎遇见王家卫

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旅行者 2019年第12期 10012-10013页

作者：叶天雄不详

巴黎的艺术气息是深到骨子里的,艺术基因太重,人难免就会故作清高,觉得自己很了不起,觉得你是明星又如何?

关键词：王家卫艺术气息了不起清高巴黎

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Early Detection of White Spot Syndrome Virus(WSSV)in Isolated Hemocytes of Litopenaeus vannamei

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CellBio 2017年第1期6卷 1-12页

作者： Ariadne Hernandez-Perez Rossanna Rodriguez-Canul Edgar Torres-Irineo Fernando Mendoza-Cano daniel Eduardo Coronado-Molina Jesus Alejandro Zamora-Briseno Jorge Hernandez-Lopez Laboratorio de Inmunología y Biología Molecular Centro de Investigación y de Estudios Avanzados del IPN(CINVESTAV-IPN)Unidad MéridaMéridaMéxico Laboratorio de Pesquerías Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional-Unidad MéridaMéridaMéxico UMDI-Sisal Facultad de CienciasUniversidad Nacional Autónoma de MéxicoSierra PapacalMéxico Centro de Investigaciones Biológicas del Noroeste HermosilloMéxico

To date, White Spot Syndrome (WSS) produced by the White Spot Syndrome Virus (WSSV) causes one of the most severe diseases infecting penaeid shrimps worldwide. Although a vast amount of studies has elucidated pathogenesis in live infection models, there is still little information about the interaction of WSSV infections using in vitro models in the whiteleg shrimp Litopenaeus vannamei (L. vannamei) hemocytes. In this study, a WSSV infection kinetics was performed using total hemocytes isolated from healthy L. vannamei organisms and maintained in in vitro conditions using isotonic solution for shrimp (ISS). The infected experimental cells received ≈ 30,000 viral copies of WSSV. The viability of the hemocytes (control and infected group) was measured during the kinetics with trypan blue exclusion method and cells were maintained up to 6 hpi (post-infection) with non-significant differences of viability between both groups. WSSV replication was assessed using RT- PCR at the RNA expression level of the early viral gene Ie1 and transcripts were detected as early as 30 min pi. Hemocytes from WSSV group showed disrupted integrity, degranulation and irregular shape. This study provides evidence of the capability of WSSV to infect and replicates in L. vannamei hemocytes using in vitro assays in short times as 30 min.

关键词： WSSV Litopenaeus vannamei Ie1 Gene Hemocytes In Vitro Infection GLS Analysis

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Field Assessment of Soil Water Storage and Actual Evapotranspiration of Rainfed Maize (<i>Zea mays</i>L.) Genotypes in a Coastal Savannah Environment

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Open Journal of Soil Science 2012年第3期2卷 213-222页

作者： Justice Okona Frimpong Marcus Quaynor Addy Emmanuel Ofori Ayeh Harry Mensah Amoatey Jacob Teye Kutufam Bertrand Quaye Joshua Osei Sintim daniel Kwasi Asare Graduate School of Nuclear and Allied Sciences University of Ghana Box AE 1 Kwabenya Ghana Nuclear Agriculture Centre Biotechnology and Nuclear Agriculture Research Institute Ghana Atomic Energy Commission Box LG 80 Legon-Accra Ghana

A field experiment was carried out in a coastal savannah agro-ecological zone of Ghana to assess the dynamics of stored soil water and actual evapotranspiration (AET) of three maize genotypes (Obatanpa, Mamaba, and Golden Crystal) grown under rainfed conditions. Access tubes were installed to a depth of 120 cm for soil water content monitoring using a neutron probe meter. The soil water balance model of plant root zone was used to estimate AET at different crop growth stages. On average, the rate of AET for Obatanpa, Mamaba, and Golden Crystal maize genotypes were estimated as 4.32, 4.46, and 3.72 mm·day–1, respectively, for the major cropping season as against corresponding values of 3.88, 4.00 and 3.72 mm day–1 for the minor cropping season. Mamaba had higher values of AET from 42 DAE (days after emergence) to 84 DAE during the minor cropping season while it had low AET values during the major cropping season. The positive balance in stored soil water in the root zone of Obatanpa was the highest from 42 DAE to 84 DAE followed by Mamaba and Golden Crystal during the major cropping season. Mamaba, on the other hand, had the highest AET from 70 DAE to 84 DAE. Obatanpa used 55.6% of stored soil water for AET, which was the highest among the maize genotypes during the major cropping season. Golden Crystal and Mamaba followed with 53.3% and 51.5%. For the minor cropping season, 48.5% of stored soil water was used by Mamaba for AET, followed by Obatanpa, (46.4%) and Golden Crystal (43.2%). A strong positive significant (p ≤ 0.05) linear correlation existed between AET and precipitation with the coefficient of determination (R2) being 69.2 for Obatanpa, 88.5 for Mamaba and 82.8 for Golden Crystal for the major cropping season. Higher R2 values (98.0, for Obatanpa, 94.1 for Mamaba and 98.9 for Golden Crystal) were, however, obtained for the minor cropping season. Additionally, a strong linear relationship was found between AET and precipitation, suggesting the need to form

关键词： Soil Water Balance Actual Evapotranspiration Stored Soil Water Rainfed Maize Production

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Differential diagnosis in ulcerative colitis in an adolescent: Chronic granulomatous disease needs extra attention

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World Journal of Gastrointestinal Pathophysiology 2017年第2期8卷 87-92页

作者： daniel Kotlarz Odul Egritas Gurkan Zehra Sule Haskologlu Ozgur Ekinci Aysel Aksu Unlusoy Neslihan Gürcan Kaya Jacek Puchalka[Deceased] Cristoph Klein Buket Dalgic Department of Pediatrics Dr.Von Hauner Children’s Hospital Ludwig-Maximilians-University Department of Pediatric Gastroenterology Gazi University School of Medicine Department of Pediatric Immunology and Allergy Ankara University School of Medicine Department of Pathology Gazi University Faculty of Medicine

Chronic granulomatous disease(CGD) is a primary immune deficiency that is commonly diagnosed under the age of 5 years(95%) and is rarely seen in adulthood. CGD may manifest as inflammatory bowel disease(IBD) in childhood. Without proper diagnosis, these patients may be monitored for years as IBD; some may even be regarded as steroid-resistant ulcerative colitis(UC) and end up having a colectomy. In this case report, we described a patient who had been followedup for years as UC and subsequently underwent colectomy, but was finally diagnosed in adulthood as primary immune deficiency.

关键词： Ulcerative colitis Chronic granulomatous disease Inflammatory bowel disease Immunodeficiency Childhood

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Critical care management and intensive care unit outcomes following cytoreductive surgery with hyperthermic intraperitoneal chemotherapy

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World Journal of Critical Care Medicine 2017年第2期6卷 116-123页

作者： Sumit Kapoor Adel Bassily-Marcus Rafael Alba Yunen Parissa Tabrizian Sabrine Semoin Joseph Blankush daniel Labow John Oropello Anthony Manasia Roopa Kohli-Seth Department of Pulmonary Critical Care and SleepBaylor College of Medicine Department of Surgery Critical Care DivisionIcahn School of Medicine at Mount Sinai Department of Pulmonary and Critical Care Medical College of GeorgiaAugusta University Department of Surgery Icahn School of Medicine at Mount Sinai General Surgery Resident Vanderbilt University Medical Center

AIM To study the early postoperative intensive care unit(ICU) management and complications in the first 2 wk of patients undergoing cytoreductive surgery(CRS) and hyperthermic intraperitoneal chemotherapy(HIPEC).METHODS Our study is a retrospective, observational study per-formed at Icahn School of Medicine at Mount Sinai, quaternary care hospital in New York City. All adult patients who underwent CRS and HIPEC between January 1, 2007 and December 31, 2012 and admitted to ICU postoperatively were studied. Fifty-one patients came to the ICU postoperatively out of 170 who underwent CRS and HIPEC therapy during the study period. Data analysis was performed using descriptive *** Of the 170 patients who underwent CRS and HIPEC therapy, 51(30%) came to the ICU postoperatively. Mean ICU length of stay was 4 d(range 1-60 d) and mean APACHE Ⅱ score was 15(range 7-23). Thirtyone/fifty-one(62%) patients developed postoperative complications. Aggressive intraoperative and postoperative fluid resuscitation is required in most patients. Hypovolemia was seen in all patients and median amount of fluids required in the first 48 h was 6 L(range 1-14 L). Thirteen patients(25%) developed postoperative hypotension with seven requiring vasopressor support. The major cause of sepsis was intraabdominal, with 8(15%) developing anastomotic leaks and 5(10%) developing intraabdominal abscess. The median survival was 14 mo with 30 d mortality of 4%(2/51) and 90 d mortality of 16%(8/51). One year survival was 56.4%(28/51). Preoperative medical co morbidities, extent of surgical debulking, intraoperative blood losses, amount of intra op blood products required and total operative time are the factors to be considered while deciding ICU vs non ICU *** Overall, ICU outcomes of this study population are excellent. Triage of these patients should consider preoperative and intraoperative factors. Intensivists should be vigilant to aggressive postop fluid resuscitation,

关键词： Hyperthermic Abdominal sepsis Cytoreduction Carcinomatosis Respiratory failure Vasopressors

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Estimation of Endotracheal Tube Cuff Pressure in a Large Teaching Hospital in Ghana

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Open Journal of Anesthesiology 2015年第12期5卷 233-241页

作者： Ebenezer Owusu Darkwa Frank Boni Eugenia Lamptey Yaw Adu-Gyamfi Christian Owoo Robert Djagbletey Alfred Edwin Yawson Edmund Ayesu daniel Akwanfo Yaw Sottie Department of Anaesthesia School of Medicine and Dentistry College of Health Sciences University of Ghana Accra Ghana Department of Community Health School of Public Health College of Health Sciences University of Ghana Accra Ghana Department of Statistics Kumasi Polytechnic Kumasi Ghana Department of Anaesthesia Korle-Bu Teaching Hospital Accra Ghana

Background: Maintenance of optimal Endotracheal Tube cuff Pressure (ETTcP) in anaesthetic practice reduces cuff pressure complications. Aneroid manometers for measurement of ETTcP are not widely available in Ghana, hence anaesthesia providers estimate ETTcP according to their experience. The study assessed ETTcP obtained from estimation techniques between anaesthesia providers at Korle-Bu Teaching Hospital (KBTH). It also evaluated the Volume of Air Required (VAR) to obtain an acceptable cuff inflation pressure for sizes 7.0 and 8.0 mm adult endotracheal tubes used at the hospital, and the effect of patient’s age, weight and height on this volume. Methods: Eighty-one patients who underwent general anaesthesia were recruited. ETTcP was measured using an aneroid manometer via a three-way tap. After full cuff deflation, the cuff was refilled with air until an ETTcP of 20 cm H2O was obtained. Independent t-test was used to measure the statistical variations in the ETTcP using estimation techniques in relation to recommended levels as well as the significant difference of mean VAR to obtain a cuff pressure of 20 cm H2O. Grouped t-test was used to determine significant differences in ETTcP between anaesthesia providers using estimation techniques. Results: Mean ETTcP obtained from estimation techniques was (61.87, 73.79) cm H2O. The mean ETTcP measured for Physician and Nurse Anaesthetists were 65.36 cm H20 and 69.52 cm H2O respectively. The mean VAR to achieve an ETTcP of 20 cm H2O for endotracheal tube sizes 7.0 mm and 8.0 mm were 3.90 ± 1.13 mls and 4.55 ± 0.95 mls respectively. Age and weight significantly influenced the VAR to achieve a cuff pressure of 20 cm H2O, however, height did not. Conclusions: This study demonstrated that cuff pressures obtained by estimation techniques were generally higher than the recommended average with no significant difference between anaesthesia providers. However, in the absence of an aneroid manometer, ETTcP of tube sizes 7.0 mm and

关键词： Endotracheal Tube Cuff Pressure Physician Anaesthetist Nurse Anaesthetist Korle-Bu Teaching Hospital

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