LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 343

Search options

  1. Article ; Online: A Numerical Investigation Concerning the Effect of Step-Feeding on Performance of Constructed Wetlands Operating under Mediterranean Conditions

    Konstantinos A. Liolios

    Sustainability, Vol 15, Iss 24, p

    2023  Volume 16675

    Abstract: The effects of wastewater step-feeding (SF) on the performance of horizontal subsurface flow constructed wetlands (HSF CWs) are numerically investigated. The purpose is to check if this alternative feeding technique increases the ability of HSF CWs to ... ...

    Abstract The effects of wastewater step-feeding (SF) on the performance of horizontal subsurface flow constructed wetlands (HSF CWs) are numerically investigated. The purpose is to check if this alternative feeding technique increases the ability of HSF CWs to remove pollutants. Two methodologies are used: Initially, the tanks-in-series (TIS) methodology, based on the finite volume method (FVM), is analyzed using the volumetric degradation coefficient λ. In this case, the operation of a CW is similar to a series of continuous stirred-tank reactors (CSTRs) operating under steady conditions. Then, the step-feeding (SF) procedure is presented, in which the CW is operated like a plug flow reactor (PFR). For the numerical investigation, the available experimental data for five existing HSF CWs are used. The results show that SF does not improve the performance of HSF CWs in removing biochemical oxygen demand (BOD) operating under Mediterranean conditions. When the HSF CWs operate without the SF procedure, the performance is between 55 and 81% for the TIS method and 60 and 89% for the PFR method, while the ability of the CW tank to remove the BOD decreases and varies from 48 to 79% (TIS) and from 54 to 86% (PFR), respectively.
    Keywords step-feeding ; constructed wetlands ; tanks-in-series ; continuous stirred-tank reactor ; plug flow reactor ; numerical investigation ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
    Subject code 660
    Language English
    Publishing date 2023-12-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Article: Preliminary Evaluation of Iron Oxide Nanoparticles Radiolabeled with

    Salvanou, Evangelia-Alexandra / Kolokithas-Ntoukas, Argiris / Liolios, Christos / Xanthopoulos, Stavros / Paravatou-Petsotas, Maria / Tsoukalas, Charalampos / Avgoustakis, Konstantinos / Bouziotis, Penelope

    Nanomaterials (Basel, Switzerland)

    2022  Volume 12, Issue 14

    Abstract: Theranostic radioisotope pairs such as Gallium-68 ( ...

    Abstract Theranostic radioisotope pairs such as Gallium-68 (
    Language English
    Publishing date 2022-07-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662255-5
    ISSN 2079-4991
    ISSN 2079-4991
    DOI 10.3390/nano12142490
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  3. Article ; Online: Preliminary Evaluation of Iron Oxide Nanoparticles Radiolabeled with 68 Ga and 177 Lu as Potential Theranostic Agents

    Evangelia-Alexandra Salvanou / Argiris Kolokithas-Ntoukas / Christos Liolios / Stavros Xanthopoulos / Maria Paravatou-Petsotas / Charalampos Tsoukalas / Konstantinos Avgoustakis / Penelope Bouziotis

    Nanomaterials, Vol 12, Iss 14, p

    2022  Volume 2490

    Abstract: Theranostic radioisotope pairs such as Gallium-68 ( 68 Ga) for Positron Emission Tomography (PET) and Lutetium-177 ( 177 Lu) for radioisotopic therapy, in conjunction with nanoparticles (NPs), are an emerging field in the treatment of cancer. The present ...

    Abstract Theranostic radioisotope pairs such as Gallium-68 ( 68 Ga) for Positron Emission Tomography (PET) and Lutetium-177 ( 177 Lu) for radioisotopic therapy, in conjunction with nanoparticles (NPs), are an emerging field in the treatment of cancer. The present work aims to demonstrate the ability of condensed colloidal nanocrystal clusters (co-CNCs) comprised of iron oxide nanoparticles, coated with alginic acid (MA) and stabilized by a layer of polyethylene glycol (MAPEG) to be directly radiolabeled with 68 Ga and its therapeutic analog 177 Lu. 68 Ga/ 177 Lu- MA and MAPEG were investigated for their in vitro stability. The biocompatibility of the non-radiolabeled nanoparticles, as well as the cytotoxicity of MA, MAPEG, and [ 177 Lu]Lu-MAPEG were assessed on 4T1 cells. Finally, the ex vivo biodistribution of the 68 Ga-labeled NPs as well as [ 177 Lu]Lu-MAPEG was investigated in normal mice. Radiolabeling with both radioisotopes took place via a simple and direct labelling method without further purification. Hemocompatibility was verified for both NPs, while MTT studies demonstrated the non-cytotoxic profile of the nanocarriers and the dose-dependent toxicity for [ 177 Lu]Lu-MAPEG. The radiolabeled nanoparticles mainly accumulated in RES organs. Based on our preliminary results, we conclude that MAPEG could be further investigated as a theranostic agent for PET diagnosis and therapy of cancer.
    Keywords Gallium-68 ; Lutetium-177 ; iron oxide nanoparticles ; condensed clusters ; MTT ; radiolabeling ; Chemistry ; QD1-999
    Subject code 333
    Language English
    Publishing date 2022-07-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Article ; Online: A Linear Complementarity Numerical Approach to the Non-Convex Problem of Structures Environmentally Damaged and Strengthened by Cable-Bracings

    Konstantinos Liolios / Stefan Radev / Asterios Liolios / Ivan Georgiev / Krassimir Georgiev

    Biomath, Vol 1, Iss

    2012  Volume 2

    Abstract: A computational treatment is presented for the mathematically rigorous analysis of civil engineering structures, which have been environmentally damaged and subsequently strengthened by cable-elements. The problem is treated as an inequality one, where ... ...

    Abstract A computational treatment is presented for the mathematically rigorous analysis of civil engineering structures, which have been environmentally damaged and subsequently strengthened by cable-elements. The problem is treated as an inequality one, where the governing conditions are equalities as well as inequalities. The cable behavior is considered as nonconvex and nonmonotone one and is described by generalized subdifferential relations including loosening, elastoplastic - fracturing and other effects. Using piece-wise linearization for the cable behavior, a linear complementarity problem, with a reduced number of unknowns, is solved by optimization algorithms. Finally, an example from Civil and Environmental Engineering praxis is presented.
    Keywords Biology (General) ; QH301-705.5 ; Mathematics ; QA1-939
    Language English
    Publishing date 2012-12-01T00:00:00Z
    Publisher Biomath Forum
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article: Modeling of flow and BOD fate in horizontal subsurface flow constructed wetlands

    Liolios, Konstantinos A / Moutsopoulos, Konstantinos N / Tsihrintzis, Vassilios A

    Chemical engineering journal. 2012 Aug. 15, v. 200-202

    2012  

    Abstract: A numerical modeling effort of flow and Biochemical Oxygen Demand (BOD) fate in horizontal subsurface flow (HSF) constructed wetlands (CWs), under Mediterranean conditions, is presented. The Visual MODFLOW family computer code, based on the finite ... ...

    Abstract A numerical modeling effort of flow and Biochemical Oxygen Demand (BOD) fate in horizontal subsurface flow (HSF) constructed wetlands (CWs), under Mediterranean conditions, is presented. The Visual MODFLOW family computer code, based on the finite difference method, was used for the numerical simulation of flow in five pilot-scale HSF CW units containing various vegetation and porous material types, and operating under various temperature and hydraulic residence time (HRT) conditions. BOD fate and transport was simulated using the MT3DMS computer code. Experimental data from these CW units were used in estimating the BOD removal coefficient, required in the above modeling effort. Values of this removal coefficient were found to depend on temperature and HRT. Relations are presented for the prediction of this coefficient. The model was calibrated and verified using the measured BOD concentrations, and was used in test runs comparing performance under various vegetation, porous media size, temperature and HRT conditions. Model performance was found acceptable, indicating its usefulness in the simulation of BOD fate in CWs and in the design of these facilities.
    Keywords biochemical oxygen demand ; chemical engineering ; constructed wetlands ; hydrologic models ; mathematical models ; model validation ; porous media ; prediction ; subsurface flow ; temperature ; vegetation
    Language English
    Dates of publication 2012-0815
    Size p. 681-693.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 2012137-4
    ISSN 1873-3212 ; 1385-8947
    ISSN (online) 1873-3212
    ISSN 1385-8947
    DOI 10.1016/j.cej.2012.06.101
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  6. Article ; Online: The Genomes On Line Database (GOLD) in 2007: status of genomic and metagenomic projects and their associated metadata.

    Liolios, Konstantinos / Mavromatis, Konstantinos / Tavernarakis, Nektarios / Kyrpides, Nikos C

    Nucleic acids research

    2007  Volume 36, Issue Database issue, Page(s) D475–9

    Abstract: The Genomes On Line Database (GOLD) is a comprehensive resource that provides information on genome and metagenome projects worldwide. Complete and ongoing projects and their associated metadata can be accessed in GOLD through pre-computed lists and a ... ...

    Abstract The Genomes On Line Database (GOLD) is a comprehensive resource that provides information on genome and metagenome projects worldwide. Complete and ongoing projects and their associated metadata can be accessed in GOLD through pre-computed lists and a search page. As of September 2007, GOLD contains information on more than 2900 sequencing projects, out of which 639 have been completed and their sequence data deposited in the public databases. GOLD continues to expand with the goal of providing metadata information related to the projects and the organisms/environments towards the Minimum Information about a Genome Sequence' (MIGS) guideline. GOLD is available at http://www.genomesonline.org and has a mirror site at the Institute of Molecular Biology and Biotechnology, Crete, Greece at http://gold.imbb.forth.gr/
    MeSH term(s) Databases, Nucleic Acid/history ; Databases, Nucleic Acid/statistics & numerical data ; Databases, Nucleic Acid/trends ; Environmental Microbiology ; Genome, Archaeal ; Genome, Bacterial ; Genomics ; History, 20th Century ; History, 21st Century ; Internet ; User-Computer Interface
    Language English
    Publishing date 2007-11-02
    Publishing country England
    Document type Historical Article ; Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 186809-3
    ISSN 1362-4962 ; 1362-4954 ; 0301-5610 ; 0305-1048
    ISSN (online) 1362-4962 ; 1362-4954
    ISSN 0301-5610 ; 0305-1048
    DOI 10.1093/nar/gkm884
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 1067: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  7. Article ; Online: Group programmes for recovery from psychosis

    Skartsila Grigoria / Liolios Konstantinos / Livaditis Miltos / Segredou Eirini

    Annals of General Psychiatry, Vol 7, Iss Suppl 1, p S

    a systematic review

    2008  Volume 130

    Keywords Psychiatry ; RC435-571 ; Neurology. Diseases of the nervous system ; RC346-429 ; Neurosciences. Biological psychiatry. Neuropsychiatry ; RC321-571 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Psychiatry ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Language English
    Publishing date 2008-04-01T00:00:00Z
    Publisher BioMed Central
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  8. Article ; Online: Psychosis and hermaphroditism

    Mitsonis Charalambos / Stamatopoulou Konstantina / Liolios Konstantinos / Segredou Eirini

    Annals of General Psychiatry, Vol 7, Iss Suppl 1, p S

    a case report

    2008  Volume 129

    Keywords Psychiatry ; RC435-571 ; Neurology. Diseases of the nervous system ; RC346-429 ; Neurosciences. Biological psychiatry. Neuropsychiatry ; RC321-571 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Psychiatry ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Language English
    Publishing date 2008-04-01T00:00:00Z
    Publisher BioMed Central
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  9. Article: The Genomes On Line Database (GOLD) in 2007: status of genomic and metagenomic projects and their associated metadata

    Liolios, Konstantinos / Mavromatis, Konstantinos / Tavernarakis, Nektarios / Kyrpides, Nikos C

    Nucleic acids research. 2008 Jan., v. 36, no. suppl_1

    2008  

    Abstract: The Genomes On Line Database (GOLD) is a comprehensive resource that provides information on genome and metagenome projects worldwide. Complete and ongoing projects and their associated metadata can be accessed in GOLD through pre-computed lists and a ... ...

    Abstract The Genomes On Line Database (GOLD) is a comprehensive resource that provides information on genome and metagenome projects worldwide. Complete and ongoing projects and their associated metadata can be accessed in GOLD through pre-computed lists and a search page. As of September 2007, GOLD contains information on more than 2900 sequencing projects, out of which 639 have been completed and their sequence data deposited in the public databases. GOLD continues to expand with the goal of providing metadata information related to the projects and the organisms/environments towards the Minimum Information about a Genome Sequence' (MIGS) guideline. GOLD is available at http://www.genomesonline.org and has a mirror site at the Institute of Molecular Biology and Biotechnology, Crete, Greece at http://gold.imbb.forth.gr/
    Keywords biotechnology ; databases ; genome ; guidelines ; metagenomics ; molecular biology ; nucleic acids ; nucleotide sequences ; Crete ; Greece
    Language English
    Dates of publication 2008-01
    Size p. D475-D479.
    Document type Article
    ZDB-ID 186809-3
    ISSN 0301-5610 ; 0305-1048
    ISSN 0301-5610 ; 0305-1048
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 79/704: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  10. Article: The Genomes On Line Database (GOLD) in 2009: status of genomic and metagenomic projects and their associated metadata

    Liolios, Konstantinos / Chen, I. Min A / Mavromatis, Konstantinos / Tavernarakis, Nektarios / Hugenholtz, Philip / Markowitz, Victor M / Kyrpides, Nikos C

    Nucleic acids research. 2010 Jan., v. 38, no. suppl_1

    2010  

    Abstract: The Genomes On Line Database (GOLD) is a comprehensive resource for centralized monitoring of genome and metagenome projects worldwide. Both complete and ongoing projects, along with their associated metadata, can be accessed in GOLD through precomputed ... ...

    Abstract The Genomes On Line Database (GOLD) is a comprehensive resource for centralized monitoring of genome and metagenome projects worldwide. Both complete and ongoing projects, along with their associated metadata, can be accessed in GOLD through precomputed tables and a search page. As of September 2009, GOLD contains information for more than 5800 sequencing projects, of which 1100 have been completed and their sequence data deposited in a public repository. GOLD continues to expand, moving toward the goal of providing the most comprehensive repository of metadata information related to the projects and their organisms/environments in accordance with the Minimum Information about a (Meta)Genome Sequence (MIGS/MIMS) specification. GOLD is available at: http://www.genomesonline.org and has a mirror site at the Institute of Molecular Biology and Biotechnology, Crete, Greece, at: http://gold.imbb.forth.gr/
    Keywords biotechnology ; databases ; gene banks ; genome ; metagenomics ; molecular biology ; monitoring ; nucleic acids ; nucleotide sequences ; Crete ; Greece
    Language English
    Dates of publication 2010-01
    Size p. D346-D354.
    Document type Article
    ZDB-ID 186809-3
    ISSN 0301-5610 ; 0305-1048
    ISSN 0301-5610 ; 0305-1048
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 79/704: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top