Ü. Haldna : rechercher sur Z-Library

Estonian Journal of Ecology

Année:

1984

Langue:

english

Fichier:

PDF, 346 KB

english, 1984

Nitrogen and phosphorus in Estonian rivers discharging into Lake Peipsi: estimation of loads and seasonal and spatial distribution of concentrations

Buhvestova, O, Kangur, K, Haldna, M, Möls, T

Journal:

Année:

2011

Langue:

english

Fichier:

PDF, 533 KB

english, 2011

The effect of channelization on the biological quality of lowland streams using macroinvertebrates as proxies

Käiro, K., Haldna, M., Timm, H., Virro, T.

Journal:

Frontiers in Pharmacology

Année:

2017

Langue:

english

Fichier:

PDF, 1.02 MB

english, 2017

Artificial Intelligence and Machine Learning Applied at the Point of Care

Angehrn, Zuzanna, Haldna, Liina, Zandvliet, Anthe S., Gil Berglund, Eva, Zeeuw, Joost, Amzal, Billy, Cheung, S. Y. Amy, Polasek, Thomas M., Pfister, Marc, Kerbusch, Thomas, Heckman, Niedre M.

Journal:

Année:

2020

Fichier:

PDF, 381 KB

2020

Carbonate eluents in ion chromatography: Fractions of resin capacity linked to anions present in the eluent

Ü. Haldna

Journal:

Année:

1992

Langue:

english

Fichier:

PDF, 252 KB

english, 1992

Improvement of the performance of single-column ion chromatography by computerized detector signal processing and correlation chromatography

M. Kaljurand, E. Urbas, U. Haldna

Journal:

Année:

1994

Langue:

english

Fichier:

PDF, 363 KB

english, 1994

Test of Simonds′ method in factor analysis by digital simulation models

U. Haldna, A. Murshak

Journal:

Année:

1983

Langue:

english

Fichier:

PDF, 310 KB

english, 1983

A new approach to the analysis of the UV absorption spectra of ketones in aqueous sulfuric acid

Ü. Haldna, M. Grebenkova, A. Ebber

Journal:

Ülo Haldna, Marina Grebenkova

Année:

1991

Langue:

english

Fichier:

PDF, 431 KB

english, 1991

Evaluation of different factor analytical methods for estimation of pKBH+ and solvation parameter values of 2-hydroxybenzoic acid

Journal:

Année:

1993

Langue:

english

Fichier:

PDF, 305 KB

english, 1993

An estimation of the volume of restructured water shells around hydrophobic solutes

Ü. Haldna, L. Oraste

Journal:

Inorganica Chimica Acta

Année:

1980

Langue:

english

Fichier:

PDF, 104 KB

english, 1980

Resolution of overlapping asymmetrical chromatographic peaks

Ü.L. Haldna, V.O. Pihl

Journal:

Année:

1978

Langue:

english

Fichier:

PDF, 106 KB

english, 1978

Determination of nitrate and chloride ions in food by single-column ion chromatography

J. Pentchuk, Ü. Haldna, K. Ilmoja

Journal:

Année:

1986

Langue:

english

Fichier:

PDF, 254 KB

english, 1986

Preparation of low-capacity anion-exchange resings for ion chromatography on a methacrylic copolymer matrix

Ülo Haldna, Rein Palvadre, Jaan Pentshuk, Tia Kleemeier

Journal:

Année:

1985

Langue:

english

Fichier:

PDF, 160 KB

english, 1985

Effect of winter conditions on spring nutrient concentrations and plankton in a large shallow Lake Peipsi (Estonia/Russia)

Kätlin Blank, Juta Haberman, Marina Haldna, Reet Laugaste

Journal:

Aquatic Ecology

Année:

2009

Langue:

english

Fichier:

PDF, 339 KB

english, 2009

Diversity and structure of the winter rotifer assemblage in a shallow eutrophic northern temperate Lake Võrtsjärv

Taavi Virro, Juta Haberman, Marina Haldna, Kätlin Blank

Journal:

Aquatic Ecology

Année:

2009

Langue:

english

Fichier:

PDF, 203 KB

english, 2009

Nutrients and phytoplankton in Lake Peipsi during two periods that differed in water level and temperature

Marina Haldna, Anu Milius, Reet Laugaste, Külli Kangur

Journal:

Année:

2008

Langue:

english

Fichier:

PDF, 698 KB

english, 2008

Diet patterns and ontogenetic diet shift of pikeperch,Sander lucioperca(L.) fry in lakes Peipsi and Võrtsjärv (Estonia)

Kai Ginter, Külli Kangur, Andu Kangur, Peeter Kangur, Marina Haldna

Journal:

Année:

2011

Langue:

english

Fichier:

PDF, 423 KB

english, 2011

Habitat preferences as related to the prolonged dormancy of perennial herbs and ferns

Margit Reintal, Kadri Tali, Marina Haldna, Tiiu Kull

Journal:

Plant Ecology

Année:

2010

Langue:

english

Fichier:

PDF, 356 KB

english, 2010

Application of ion chromatography to the determination of selectivity coefficients

Ü. Haldna

Journal:

Ulo Haldna, Jaan Pentchuk, Michel Righezza, Jacques R. Chrétien

Année:

1992

Langue:

english

Fichier:

PDF, 215 KB

english, 1992

Factor analysis in ion chromatography of carboxylate ions

Journal:

Année:

1994

Langue:

english

Fichier:

PDF, 674 KB

english, 1994

Consequences of introducing the invasive amphipod Gmelinoides fasciatus into large shallow Lake Peipsi: present distribution and possible effects on fish food

K. Kangur, M. Kumari, M. Haldna

Journal:

Année:

2010

Langue:

english

Fichier:

PDF, 275 KB

english, 2010

Anguillicoloides crassus infection of European eel, Anguilla anguilla (L.), in inland waters of Estonia: history of introduction, prevalence and intensity

A. Kangur, P. Kangur, K. Kangur, A. Järvalt, M. Haldna

Journal:

Année:

2010

Langue:

english

Fichier:

PDF, 310 KB

english, 2010

A13C NMR Study of the Protonation of 3,5-Dihydroxybenzoic Acid in Aqueous Sulfuric Acid

Ülo Haldna, Kalle Linask, Helle Kuura, Marina Kudryashova

Journal:

Mendeleev Communications

Année:

1994

Langue:

english

Fichier:

PDF, 518 KB

english, 1994

Correlation ion chromatography with indirect UV detection

M. Kaljurand, E. Urbas, U. Haldna

Journal:

Chromatographia

Année:

1992

Langue:

english

Fichier:

PDF, 339 KB

english, 1992

Inter-annual variability of Potamogeton perfoliatus stands

Helle Mäemets, Lilian Freiberg, Marina Haldna, Tõnu Möls

Journal:

Aquatic Botany

Année:

2006

Langue:

english

Fichier:

PDF, 144 KB

english, 2006

Eutrophication and macrophyte species richness in the large shallow North-European Lake Peipsi

Helle Mäemets, Kadi Palmik, Marina Haldna, Diana Sudnitsyna, Marina Melnik

Journal:

Aquatic Botany

Année:

2010

Langue:

english

Fichier:

PDF, 441 KB

english, 2010

Diet niche relationships among predator and prey fish species in their early life stages in Lake Võrtsjärv (Estonia)

K. Ginter, K. Kangur, A. Kangur, P. Kangur, M. Haldna

Journal:

International Review of Hydrobiology

Année:

2012

Langue:

english

Fichier:

PDF, 457 KB

english, 2012

Biological Quality on the Basis of Macroinvertebrates in Dammed Habitats of Some Estonian Streams, Central - Baltic Europe

Käiro, Kairi, Timm, Henn, Haldna, Marina, Virro, Taavi

Journal:

Année:

2012

Langue:

english

Fichier:

PDF, 199 KB

english, 2012

A comparative study of macrophyte species richness in differently managed shore stretches of Lake Peipsi

Palmik, Kadi, Mäemets, Helle, Haldna, Marina, Kangur, Külli

Journal:

Limnologica - Ecology and Management of Inland Waters

Année:

2013

Langue:

english

Fichier:

PDF, 1.94 MB

english, 2013

Resolution of Raman spectra of aqueous sulfuric acid mixtures using principal factor analysis

Cox, Robin A., Haldna, Ülo L., Idler, K. Loralee, Yates, Keith

Journal:

Canadian Journal of Chemistry

Année:

1981

Langue:

english

Fichier:

PDF, 490 KB

english, 1981

Influence of substituent on rate and equilibrium constants by means of spectral-isolation factor analysis

Haldna, �lo L., Juga, Raivo J., Tuulmets, Ants V., J�riado, Toomas J.

Journal:

Journal of the Chemical Society Perkin Transactions 2

Année:

1987

Langue:

english

Fichier:

PDF, 548 KB

english, 1987

Modelling lake-water photochemistry: Three-decade assessment of the steady-state concentration of photoreactive transients (OH, and 3CDOM∗) in the surface water of polymictic Lake Peipsi (Estonia/Russia)

Minella, Marco, De Laurentiis, Elisa, Buhvestova, Olga, Haldna, Marina, Kangur, Külli, Maurino, Valter, Minero, Claudio, Vione, Davide

Journal:

Chemosphere

Année:

2013

Langue:

english

Fichier:

PDF, 1.41 MB

english, 2013

Factor analysis for isolation of the Raman spectra of aqueous sulfuric acid components

Malinowski, Edmund R., Cox, Robin A., Haldna, Ulo L.

Journal:

Analytical Chemistry

Année:

1984

Langue:

english

Fichier:

PDF, 519 KB

english, 1984

Importance of diffusion and resuspension for phosphorus cycling during the growing season in large, shallow Lake Peipsi

Tammeorg, Olga, Horppila, Jukka, Laugaste, Reet, Haldna, Marina, Niemistö, Juha

Journal:

Estonian Journal of Earth Sciences

Année:

2015

Langue:

english

Fichier:

PDF, 1.26 MB

english, 2015

Spatio-temporal variability of surface sediment phosphorus fractions and water phosphorus concentration in Lake Peipsi (Estonia/Russia)

Kangur, M, Puusepp, L, Buhvestova, O, Haldna, M, Kangur, K

Journal:

Année:

2013

Langue:

english

Fichier:

PDF, 10.34 MB

english, 2013

Dominant cyanobacterial genera in Lake Peipsi (Estonia/Russia): effect of weather and nutrients in summer months

Laugaste, R, Panksep, K, Haldna, M

Journal:

Estonian Journal of Ecology

Année:

2013

Langue:

english

Fichier:

PDF, 634 KB

english, 2013

Four seed-quality measures in orchids with different pollination systems

Metsare, Mirjam, Ilves, Aigi, Haldna, Marina, Kull, Tiiu, Tali, Kadri

Journal:

Acta Botanica Gallica

Année:

2015

Langue:

english

Fichier:

PDF, 511 KB

english, 2015

Sedimentation and resuspension dynamics in Lake Vesijärvi (Finland): comparison of temporal and spatial variations of sediment fluxes in deep and shallow areas

Tammeorg, Olga, Niemistö, Juha, Horppila, Jukka, Haldna, Marina, Kangur, Külli

Journal:

Fundamental and Applied Limnology / Archiv für Hydrobiologie

Année:

2013

Langue:

english

Fichier:

PDF, 781 KB

english, 2013

ChemInform Abstract: Influence of Substituent on Rate and Equilibrium Constants by Means of Spectral-Isolation Factor Analysis

HALDNA, Ç. L., JUGA, R. J., TUULMETS, A. V., JUERIADO, T. J.

Journal:

ChemInform

Année:

1988

Fichier:

PDF, 108 KB

1988

Habitat preferences as related to the prolonged dormancy of perennial herbs and ferns

Margit Reintal, Kadri Tali, Marina Haldna and Tiiu Kull

Journal:

Plant Ecology

Année:

2010

Langue:

english

Fichier:

PDF, 1.39 MB

english, 2010

Internal phosphorus loading across a cascade of three eutrophic basins: A synthesis of short- and long-term studies

Tammeorg, Olga, Horppila, Jukka, Tammeorg, Priit, Haldna, Marina, Niemistö, Juha

Journal:

Science of The Total Environment

Année:

2016

Langue:

english

Fichier:

PDF, 1.83 MB

english, 2016

Age and growth of European eel, Anguilla Anguilla (Linnaeus, 1758), in Estonian lakes

Silm, M., Bernotas, P., Haldna, M., Järvalt, A., Nõges, T.

Journal: