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  • 1
    Online Resource
    Online Resource
    Oceans and the Atmospheric Carbon Content. (2010)
    Dordrecht :Springer Netherlands,
    Details
    Keywords: Oceanography. ; Climatology. ; Electronic books.
    Description / Table of Contents: Here is an interdisciplinary overview of the role the world's ocean's play as a 'carbon sink', and how this relates to climate change. It analyzes a range of topics from the impact of conurbations on the CO2 content of nearby seas to sequestration technology.
    Type of Medium: Online Resource
    Pages: 1 online resource (185 pages)
    Edition: 1st ed.
    ISBN: 9789048198214
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=645927
    DDC: 551.466
    Language: English
    Note: Intro -- Oceans and the AtmosphericCarbon Content -- Preface -- Contents -- Chapter 1: Climate Variability in the North-Western Iberian Peninsula During the Last Deglaciation -- Chapter 2 Impact of Oporto Metropolitan Area Carbon Dioxide Emissions over the Adjacent Coastal Zone -- Chapter 3 Present Day Carbon Dioxide Fluxes in the Coastal Ocean and Possible Feedbacks Under Global Change -- Chapter 4 Aspects of Phytoplankton Communities Response to Climate Changes -- Chapter 5 pH Decrease and Effects on the Chemistry of Seawater -- Chapter 6 Effects of Sediment Acidification on the Bioaccumulation of Zn in R. Philippinarum -- Chapter 7: Contaminant Cycling Under Climate Change: Evidences and Scenarios -- Chapter 8: The Use of Weight of Evidence for Environmental Quality Assessment in Sediments Above Sub-Seabed Geological Formations for the Storage of Carbon Dioxide -- Index.
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  • 2
    Book
    Book
    Oceans and the atmospheric carbon content (2011)
    Dordrecht [u.a.] : Springer
    Details Availability
    Keywords: Ocean-atmosphere interaction ; Carbon dioxide sinks ; Atmospheric carbon dioxide ; Chemical oceanography ; Aufsatzsammlung ; Meereskunde ; Atmosphäre ; Kohlenstoffgehalt
    Type of Medium: Book
    Pages: X, 176 S. , Ill., graph. Darst., Kt. , 235 mm x 155 mm
    ISBN: 9789048198207
    URL: http://deposit.d-nb.de/cgi-bin/dokserv?id=3500114&prov=M&dok_var=1&dok_ext=htm
    URL: http://www.loc.gov/catdir/enhancements/fy1506/2010937426-d.html
    URL: http://www.loc.gov/catdir/enhancements/fy1506/2010937426-t.html
    RVK:
    RB 10408
    RVK:
    RB 10411
    Language: English
    Note: Literaturangaben , Climate variability in the north-western Iberian peninsula during the last deglaciation / Filipa Naughton ... [et al.]Impact of Oporto Metropolitan Area carbon dioxide emissions over the adjacent coastal zone / Rogério Carvalho, Nelson Barros, and Pedro Duarte -- Present day carbon dioxide fluxes in the coastal ocean and possible feedbacks under global change / Alberto V. Borges -- Aspects of phytoplankton communities response to climate changes / Maria de Graça Cabeçadas ... [et al.] -- pH decrease and effects on the chemistry of seawater / Juana Magdalena Santana-Casiano and Melchor González-Dávila -- Effects of sediment acidification on the bioaccumulation of Zn in R. philippinarum / Inmaculada Riba ... [et al.] -- Contaminant cycling under climate change : evidences and scenarios / Carlos Vale ... [et al.] -- The use of weight of evidence for environmental quality assessment in sediments above sub-seabed geological formations for the storage of carbon dioxide / Tomás-Ángel Del Valls Casillas ... [et al.].
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  • 3
    Electronic Resource
    Electronic Resource
    Marine plant harvest in Portugal (1991)
    Springer
    Journal of applied phycology 3 (1991), S. 11-18 
    Details
    ISSN: 1573-5176
    Keywords: Gelidium ; Pterocladia ; harvesting ; yield ; biomass ; management
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract This work brings together the scattered information on marine plant harvests and the colloid extraction industry in Portugal, as an initial contribution to the improvement of resource management. The first phase of exploitation of marine plant resources started prior to the 14th century, with the gathering and sale of storm-tossed seaweeds for fertilizer. The harvest of seagrasses and algae at Ria de Aveiro was of great economic importance. The second phase of resource exploitation began with the wider scale harvest of agarophyte species for colloid extraction. Portugal is at present the third largest harvester of the agarophytes Gelidium and Pterocladia (2500 t annually), and it is the fifth largest agar producer (350 t annually). Other colloid-producing species, including Chondrus crispus and Mastocarpus stellatus, are also harvested for export. The total agarophyte landings, agar production and income from agar exports is far below the maximum levels attained in the early 1970s. The status of stocks in each different harvest zone on the continental coast and the Azores is examined. Although there is an effective management structure for the Portuguese marine plant resource, research is needed to provide a sound biological basis for management.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00003915
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Complications associated with intra-arterial BCNU administered in combination with vincristine and procarbazine for the treatment of malignant brain tumors (1984)
    Springer
    Journal of neuro-oncology 2 (1984), S. 129-132 
    Details
    ISSN: 1573-7373
    Keywords: brain metastasis ; carotid artery ; glioma ; infusion chemotherapy ; vertebral artery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We have used intra-arterial (i.a.) 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU) either alone or as part of adjuvant chemotherapy in patients with malignant brain tumors over a 3 year period (1979–1982). The i.a. BCNU technique was used 111 times to infuse 134 arteries in 37 patients. These patients, 28 cases with glial tumor and 9 cases with brain metastasis, received i.a. BCNU in combination with Vincristine and Procarbazine every 6 weeks. Complications encountered were transient and included: periorbital erythralgia or occipital-nuchal pain in 23 (62%), mild confusion and disorientation in 14 (38%), and ipsilateral conjunctival edema in 10 (27%). Reversible myelosuppression was not found. Our findings suggest that BCNU (100 Mg/M2) may be given by i.a. infusion in combination chemotherapy without persistent severe untoward effects with a cumulative dose of 700 mg/M2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00177898
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Fecundity, spore recruitment and size in Gelidium sesquipedale (Gelidiales, Rhodophyta) (1996)
    Springer
    Hydrobiologia 326-327 (1996), S. 223-228 
    Details
    ISSN: 1573-5117
    Keywords: fecundity ; Gelidium sesquipedale ; Portugal ; reproduction ; seaweed ; size ; spore recruitment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Gelidium sesquipedale fecundity was quantified by counting tetrasporangial sori and cystocarps per meter squared and by estimating the number of spores contained inside them. These were obtained by regression on a size metric of reproductive structures. Tetrasporangial sori length and cystocarp thickness were the best estimators of spore number. To assess spore recruitment, 12 pottery tiles were fixed to the bottom, and the appearance of small fronds was monitored. No clear seasonal pattern of reproduction was found. Tetraspore production peaked in March 1990 with 10.4 × 106 spores m−2, whereas the carpospore peak was lower, 4.9 × 105 spores m−2 in July 1989. Recruitment followed tetraspore peaks. The probability of a G. sesquipedale tetraspore making the transition to a recruit was 4.7 × 10−5. Frond length was significantly related to tetrasporangial sori number, while cystocarp number was only related to frond branching order. Minimum size for reproduction was 6.9 cm for gametophytes and 5.4 cm for tetrasporophytes; very rarely were cystocarpic fronds smaller than 9 cm, while tetrasporic fronds were often longer than 15 cm. Cystocarpic fronds were significantly shorter and had more branches than tetrasporic fronds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00047811
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  • 6
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    Winter to summer oceanographic observations in the Arctic Ocean north of Svalbard (2017)
    AGU (American Geophysical Union) | Wiley
    In:  Journal of Geophysical Research: Oceans, 122 (8). pp. 6218-6237.
    Details
    Publication Date: 2020-02-06
    Description: Oceanographic observations from the Eurasian Basin north of Svalbard collected between January and June 2015 from the N-ICE2015 drifting expedition are presented. The unique winter observations are a key contribution to existing climatologies of the Arctic Ocean, and show a ∼100 m deep winter mixed layer likely due to high sea ice growth rates in local leads. Current observations for the upper ∼200 m show mostly a barotropic flow, enhanced over the shallow Yermak Plateau. The two branches of inflowing Atlantic Water are partly captured, confirming that the outer Yermak Branch follows the perimeter of the plateau, and the inner Svalbard Branch the coast. Atlantic Water observed to be warmer and shallower than in the climatology, is found directly below the mixed layer down to 800 m depth, and is warmest along the slope, while its properties inside the basin are quite homogeneous. From late May onwards, the drift was continually close to the ice edge and a thinner surface mixed layer and shallower Atlantic Water coincided with significant sea ice melt being observed.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
    DOI: 10.1002/2016JC012391
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 7
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    A red tide in the pack ice of the Arctic Ocean (2019)
    Nature Research
    In:  Scientific Reports, 9 (1). Art.Nr. 9536.
    Details
    Publication Date: 2022-01-31
    Description: In the Arctic Ocean ice algae constitute a key ecosystem component and the ice algal spring bloom a critical event in the annual production cycle. The bulk of ice algal biomass is usually found in the bottom few cm of the sea ice and dominated by pennate diatoms attached to the ice matrix. Here we report a red tide of the phototrophic ciliate Mesodinium rubrum located at the ice-water interface of newly formed pack ice of the high Arctic in early spring. These planktonic ciliates are not able to attach to the ice. Based on observations and theory of fluid dynamics, we propose that convection caused by brine rejection in growing sea ice enabled M. rubrum to bloom at the ice-water interface despite the relative flow between water and ice. We argue that red tides of M. rubrum are more likely to occur under the thinning Arctic sea ice regime
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1038/s41598-019-45935-0
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 8
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    Role of food availability in the bathymetric distribution of the starfish Marthasterias glacialis (Lamk.) on reefs of northern Portugal (2012)
    Institut de Ciències del Mar de Barcelona, CSIC
    Details
    Publication Date: 2012-03-01
    Description: We examined whether the abundance and size of the starfish Marthasterias glacialis (Lamk.) exhibit a depthdependent partitioning on subtidal reefs. We tested the hypothesis that differences in food availability can result in habitat partitioning along a depth gradient. The abundance and size of M. glacialis was registered at 4 depth strata: 0-4 m, 4-8 m, 8-12 m, and 〉 12 m; we also recorded the number of food items that they were preying on. The abundance and size of M. glacialis decreased with depth. Mussels ( Mytilus galloprivincialis ) were the most preyed food item across all depth strata, followed by gastropods, sea urchins and barnacles; M. glacialis also consumed a significantly larger amount of mussels in feeding experiments compared with sea urchins and gastropods. The abundance of M. galloprivincialis beds decreased with depth. The clear link between the decrease in abundance and size of M. glacialis with depth and the decay of the most consumed prey (mussels) suggest that food availability may play an important role in the vertical distribution of this starfish, though wave-associated turbulence in the first few metres of the subtidal could also limit the abundance of M. glacialis .
    Print ISSN: 0214-8358
    Electronic ISSN: 1886-8134
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Institut de Ciències del Mar de Barcelona, CSIC
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  • 9
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    miR-21 ablation and obeticholic acid ameliorate nonalcoholic steatohepatitis in mice (2017)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2017-05-26
    Description: miR-21 ablation and obeticholic acid ameliorate nonalcoholic steatohepatitis in mice Cell Death and Disease 8, e2825 (May 2017). doi:10.1038/cddis.2017.246 Authors: Pedro M Rodrigues, Marta B Afonso, André L Simão, Catarina C Carvalho, Alexandre Trindade, António Duarte, Pedro M Borralho, Mariana V Machado, Helena Cortez-Pinto, Cecília MP Rodrigues & Rui E Castro
    Electronic ISSN: 2041-4889
    Topics: Biology , Medicine
    Published by Nature Publishing Group (NPG)
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  • 10
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    "Action of essential oils from Brazilian native and exotic medicinal species on oral biofilms" (2014)
    BioMed Central
    Details
    Publication Date: 2014-11-19
    Description: Background: Essential oils (EO) obtained from twenty medicinal and aromatic plants were evaluated for their antimicrobial activity against the oral pathogens Candida albicans, Fusobacterium nucleatum, Porphyromonas gingivalis, Streptococcus sanguis and Streptococcus mitis. Methods: The antimicrobial activity of the EO was evaluates by microdilution method determining Minimal Inhibitory Concentration. Chemical analysis of the oils compounds was performed by Gas chromatography-mass spectrometry (CG-MS). The most active EO were also investigated as to their actions on the biolfilm formation. Results: The most of the essential oils (EO) presented moderate to strong antimicrobial activity against the oral pathogens (MIC - Minimal Inhibitory Concentrations values between 0.007 and 1.00 mg/mL). The essential oil from Coriandrum sativum inhibited all oral species with MIC values from 0.007 to 0.250 mg/mL, and MBC/MFC (Minimal Bactericidal /Fungicidal Concentrations) from 0.015 to 0.500 mg/mL. On the other hand the essential oil of C. articulatus inhibited 63.96% of S. sanguis biofilm formation. Through Scanning Eletronic Microscopy (SEM) images no changes were observed in cell morphology, despite a decrease in biofilm formation and changes on biofilm structure. Chemical analysis by Gas Chromatography - Mass Spectrometry (GC-MS) of the C. sativum essential oil revealed major compounds derivatives from alcohols and aldehydes, while Cyperus articulatus and Aloysia gratissima (EOs) presented mono and sesquiterpenes. Conclusions: In conclusion, the crude oil from C. articulatus exhibited the best results of antimicrobial activity e ability to control biofilm formation. The chemical analysis showed the presence of terpenes and monoterpenes such as a-pinene, a-bulnesene and copaene. The reduction of biofilms formation was confirmed from SEM images. The results of this research shows a great potential from the plants studied as new antimicrobial sources.
    Electronic ISSN: 1472-6882
    Topics: Medicine
    Published by BioMed Central
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