ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    Predicting in vivo oxygen consumption rate from ETS activity and bisubstrate enzyme kinetics in cultured marine zooplankton (2016)
    Springer
    Details
    Publication Date: 2016-06-09
    Print ISSN: 0025-3162
    Electronic ISSN: 1432-1793
    Topics: Biology
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    facet.materialart.
    Unknown
    A Survey of the Presence of Pharmaceutical Residues in Wastewaters. Evaluation of Their Removal using Conventional and Natural Treatment Procedures (2020)
    Molecular Diversity Preservation International
    Details
    Publication Date: 2020-04-02
    Description: To encourage the reutilization of treated wastewaters as an adaptation strategy to climate change it is necessary to demonstrate their quality. If this is ensured, reclaimed waters could be a valuable resource that produces very little environmental impact and risks to human health. However, wastewaters are one of the main sources of emerging pollutants that are discharged in the environment. For this, it is essential to assess the presence of these pollutants, especially pharmaceutical compounds, in treated wastewaters. Moreover, the different treatment processes must be evaluated in order to know if conventional and natural treatment technologies are efficient in the removal of these types of compounds. This is an important consideration if the treated wastewaters are used in agricultural activities. Owing to the complexity of wastewater matrixes and the low concentrations of pharmaceutical residues in these types of samples, it is necessary to use sensitive analytical methodologies. In this study, the presence of 11 pharmaceutical compounds were assessed in three different wastewater treatment plants (WWTPs) in Gran Canaria (Spain). Two of these WWTPs use conventional purification technologies and they are located in densely populated areas, while the other studied WWTP is based in constructed wetlands which purify the wastewaters of a rural area. The sampling was performed monthly for two years. A solid phase extraction (SPE) coupled to ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) method was applied for the analysis of the samples, and the 11 pharmaceuticals were detected in all the studied WWTPs. The concentrations were variable and ranged from ng·L−1 in some compounds like diclofenac or carbamazepine to µg·L−1 in common pharmaceutical compounds such as caffeine, naproxen or ibuprofen. In addition, removal efficiencies in both conventional and natural purification systems were evaluated. Similar removal efficiencies were obtained using different purifying treatments, especially for some pharmaceutical families as stimulants or anti-inflammatories. Other compounds like carbamazepine showed a recalcitrant behavior. Secondary treatments presented similar removal efficiencies in both conventional and natural wastewater treatment plants, but conventional treatments showed slightly higher elimination ratios. Regarding tertiary system, the treatment with highest removal efficiencies was reverse osmosis in comparison with microfiltration and electrodialysis reversal.
    Electronic ISSN: 1420-3049
    Topics: Chemistry and Pharmacology
    Published by Molecular Diversity Preservation International
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 3
    facet.materialart.
    Unknown
    Building a model of ammonium excretion in two species of marine zooplankton based on glutamate dehydrogenase kinetics (2016)
    Inter-Research
    Details
    Publication Date: 2016-05-25
    Print ISSN: 0171-8630
    Electronic ISSN: 1616-1599
    Topics: Biology
    Published by Inter-Research
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 4
    facet.materialart.
    Unknown
    Calidad ambiental de la zona costera del Golfo de Batabanó, Cuba (2008)
    CONyMA
    Details
    Publication Date: 2021-05-19
    Description: The anthropogenic affectation was evaluated on the coast N of the Gulf of Batabanó in May 2003 (corresponding to the provinces of Matanzas and Havana), in areas located in the line of the coast. The results were compared with the historical information of the sector. In the coast N and the Ensenada of the Broa, the parameters oxygen saturation, DBO5 and DQO showed characteristic high values of eutrofication. The biggest contribution in the Cianoficies was in the near coastal areas to sources of organic contamination. In the case of the nutrients they show specific data of mesothrofic waters with tendency to the eutrofization and the silts presented a high affectation for toxic metals. The area near to Guanímar is distinguished to present conditions of organic contamination that favor heterothrofic conditions, corroborated by a prevalence of the processes of mineralization of the organic matter over primary production and lows values of fitoplankton concentration. On the contrary, in the region of Surgidero of Batabanó, the processes of synthesis of organic matter prevail suggested by a high primary production, and concentration of fitoplankton, with low breathing levels and mineralization of the organic matter, that indicates that the system is behaving autothrofically. In a general way, this sector is very affected by the anthropogenic impact. The information obtained is of great importance for the development of the fishing and tourist industries in the area.
    Description: Published
    Keywords: Phytoplankton ; Water quality ; Primary production ; Chemistry ; Environmental monitoring ; Phytoplankton ; Water quality ; Primary production ; Chemistry ; Environmental monitoring
    Repository Name: AquaDocs
    Type: Proceedings Paper
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 5
    facet.materialart.
    Unknown
    Oxígeno disuelto y materia orgánica en cuerpos de aguas interiores del Archipiélago Sabana-Camagüey, Cuba. (2010)
    Instituto de Oceanología
    Details
    Publication Date: 2021-05-19
    Description: Entre los años 2001 y 2005, fueron evaluados los contenidos de oxígeno disuelto y de materia orgánica en la fase acuosa de las bahías de Cárdenas, Santa Clara, Puerto de Sagua la Grande, San Juan de los Remedios, Buena Vista, Los Perros, Jigüey y La Gloria. En el Puerto de Sagua la Grande y la zona costera de la bahía de Buena Vista se registraron concentraciones de oxígeno disuelto inferiores al valor de saturación en la época de lluvias. Predominaron los montos de materia orgánica expresados en términos de la demanda bioquímica de oxígeno (DBO5) entre 1,0 -2,0 mgO2/L, típicos de agua marina de calidad dudosa para uso pesquero, según la NC-25:99. Las concentraciones más comunes de la demanda química de oxígeno (DQO) al permanganto en medio alcalino fueron superiores a los 2,0 mgO2/L, indicando que existe una tendencia a la contaminación de las agua por materia orgánica. En las bahías de Santa Clara, Los Perros, Jigüey y La Gloria, la materia orgánica es fundamentalmente de origen autóctono. Las restantes bahías son receptoras de cantidades considerables de aguas residuales con escaso o ningún tratamiento, enriqueciendo a las mismas con materia orgánica.
    Description: Between 2001 and 2005, the dissolved oxygen and organic matter contents in the aquous phase were evaluated in the bays of Cárdenas, Santa Clara, Puerto de Sagua la Grande, San Juan de los Remedios, Buena Vista, Los Perros, Jigüey and La Gloria. In Puerto de Sagua la Grande and the coastal zone of Buena Vista Bay, dissolved oxygen concentrations lower than the saturation value were registered in the rainy season. There was a predominance of organic matter quantities expressed in terms of Biochemical Oxigen Demand (BOD5) between 1.0 -2,0 mgO2/L, typical of marine water of doubtful quality for fishing use, according to the NC-25:99. The most common concentrations of the Chemical Oxigen Demand (COD) to permanganate in alkaline medium were higher than 2.0 mgO2/L, indicating that there is a tendency to water pollution by organic matter. In Santa Clara, Los Perros, Jigüey and La Gloria bays, organic matter is fundamentally of autochthonous origin.The remaining bays receive considerable amounts of wastewaters with little or no treatment, that enrich these water bodies with organic matter.
    Description: Published
    Description: Oxígeno, materia orgánica, contaminación, aguas residuales,Oxygen, organic matter, wastewater pollution
    Keywords: Pollution ; Pollution
    Repository Name: AquaDocs
    Type: Journal Contribution
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 6
    facet.materialart.
    Unknown
    Calidad ambiental en zonas de pesquerias de langosta Panulirus argus (Latreille, 1804) del Golfo de Batabanó, Cuba. (2010)
    Instituto de Oceanología
    Details
    Publication Date: 2021-05-19
    Description: Una de las causas que puede haber incidido de forma negativa en las poblaciones de langosta en el Golfo de Batabanó, son los cambios en la calidad ambiental del medio. Por tal motivo, se estudia el comportamiento de un conjunto de variables abióticas y bióticas y se compara con la información histórica existente que se remonta a la década de los años ’60. El estudio abarca dos matrices, aguas y sedimentos de fondo, en las especialidades de química, microbiología y fitoplancton. La salinidad mostró una baja variabilidad y valores elevados con una media de 38.64 ups, lo cual es de esperar teniendo en cuenta la gran sequía que sufrió el País durante muchos meses. El oxígeno disuelto mostró concentraciones normales para este tipo de ecosistema y valores por encima del por ciento de saturación. En el área evaluada predominaron los sedimentos en la mayoría de las fueron fondos fangosos con cierta cantidad de arena, de color blanco-gris, presentando en algunos casos olor a sulfhídrico.Teniendo en cuenta los indicadores, tanto químicos (DBO5, NT, PO4 y PT) como biológicos (bacterias heterótrofas y DMO en aguas y sedimentos, Pp, Pp/R y estructura de la comunidad fitoplanctónica), la zona al E de la Isla de la Juventud presentó, en general, mejores condiciones ambientales que la ubicada en las cercanías de La Coloma, aunque cada estación mostró sus particularidades en cuanto al comportamiento de cada uno de los parámetros evaluados.
    Description: One of the causes that have impacted in a negative way in lobster populations in the Gulf of Batabanó, are changes in environmental quality. For such a reason, it is studied the behaviour of a group of abiotic and biotic variables and were compared with the existent historical information since the decade of the years' 60. The study embraces the chemistry, microbiology and phytoplankton in two fundamental matrixes, waters and bottom sediments. The salinity showed a low variability and high values with a mean of 38.64 ups. The dissolved oxygen and the percent of saturation showed normal values. The sediments in most of the stations were muddy funds with certain quantity of sand of different diameter, of white-grey colour, presenting in some cases sulphidric odor. The application of specific chemical and biological indexes, show that the E area of the Juventud Island presented better environmental conditions that the proximities of La Coloma, although each station showed their particularities as for the behaviour of each one of the evaluated parameters.
    Description: Published
    Description: langosta espinosa, calidad ambiental, aguas, sedimentos, química, microbiología, fitoplancton, lobster, environmental quality, waters, bottom sediments, chemistry, microbiology, phytoplankton.
    Keywords: Water quality ; Water quality
    Repository Name: AquaDocs
    Type: Journal Contribution
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 7
    facet.materialart.
    Unknown
    Análisis espacio-temporal de la contracorriente cubana de septiembre de 1999 a junio de 2001 (2010)
    Details
    Publication Date: 2021-05-19
    Description: Se reconoce que el establecimiento y operación de un sistema de monitoreo ambiental es la médula de los esfuerzos que una nación realiza en el campo del manejo de la calidad del medio ambiente y sin él, los programas de restauración y protección de los recursos naturales, solo pueden alcanzar objetivos limitados con una efectividad relativa. A partir de los análisis de la información correntométrica obtenida de dos ADCP (Y5 y Y6) fondeados en el Lado Cuba del canal de Yucatán desde septiembre de 1999 a junio de 2001, es obtenida una caracterización espacio-temporal de la contracorriente cubana. Los resultados muestran un flujo al Sur de forma intermitente, sufriendo variaciones tanto en su envergadura como en su intensidad en los diferentes meses del año. De forma general, los estratos superficiales y subsuperficiales se caracterizan por presentar los mayores valores de la velocidad de la corriente, llegando en ocasiones hasta los 136 cm/s. La velocidad tiende a disminuir con la profundidad y generalmente los niveles inferiores se caracterizan por velocidades entre 0-10 cm/s aunque es frecuente que la corriente alcance valores superiores a 20 cm/s. En el mes de abril de 2000 se observó la mayor persistencia de la contracorriente cubana en ambas zonas con 85 % en Y6 y 81 % en Y5.
    Description: sistema de monitoreo ambiental, manejo ambiental, Canal de Yucatan, Cuba
    Keywords: Environmental monitoring ; Environmental monitoring ; Monitoring systems ; Environment management
    Repository Name: AquaDocs
    Type: Preprint
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 8
    facet.materialart.
    Unknown
    Estudios preeliminares de compuestos del ciclo del CO2 en algunas áreas costeras de la plataforma cubana (2010)
    Instituto de Oceanología
    Details
    Publication Date: 2021-05-19
    Description: Con el fin de evaluar los contenidos de los compuestos del ciclo del carbono se muestrearon las zonas de la plataforma marina cubana Golfo de Batabanó, Golfo de Guanahacabibes y el cuerpo de agua Bahía Honda en septiembre de 2005, y en marzo de 2009, la zona litoral del municipio Playa de Ciudad de La Habana. Los parámetros estudiados fueron pH, alcalinidad total, alcalinidad al carbonato, dióxido de carbono total, dióxido de carbono disuelto, presión parcial de CO2, y contenidos de bicarbonato y carbonato. Predominaron los valores de pH superiores 8 y alcalinidad total fluctuó entre 2259 y 2755 μmol kg-1, lo que indica que las áreas tienen un comportamiento alcalino. Estos montos fueron superiores a los determinados para el ambiente oceánico. El bicarbonato conforma más del 80 % del carbono inorgánico total, los contenidos de carbonato alcanzaron concentraciones medias similares a la reportada para el Océano Atlántico tropical.
    Description: In September 2005, samplings were carried out in the Gulf of Batabanó and Gulf of Guanahacabibes, very important zones of Cuban marine shelf, as well as in Bahía Honda water body, with the purpose of evaluating the contents of carbon cycle compounds. Samplings in the coastal zone of Playa municipality, in Havana City, were carried out in March 2009, with the same purpose. The studied parameters were pH, total alkalinity, carbonate alkalinity, total carbon dioxide, dissolved carbon dioxide, partial CO2 pressure, and bicarbonate and carbonate contents. The predominant pH values were higher than 8. Total alkalinity fluctuated between 2259 and 2755 μmol kg-1, and indicates that the areas have an alkaline behavior; these amounts were higher than those determined for the oceanic environment. Bicarbonate constitutes more than 80 % of total inorganic carbon. Carbonate contents showed mean concentrations similar to those reported for the tropical Atlantic Ocean.
    Description: Trabajo presentado en COLACMARCUBA celebrado en La Habana entre el 25 y 30 de octubre 2009
    Description: Published
    Description: cambio climático, dióxido de carbono, alcalinidad, zona costera, climate change, carbon dioxide, alkalinity, coastal zone
    Repository Name: AquaDocs
    Type: Journal Contribution
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...