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P. Helena Mäkelä

P. Helena Mäkelä

D-Index & Metrics

Microbiology

D-Index
66
Citations
21637
World Ranking
2357
National Ranking
23

Research.com Recognitions

  • 2002 - Prince Mahidol Award
  • 1970 - Robert Koch Prize

Overview

P. Helena Mäkelä was affiliated with the University of Helsinki in Finland and contributed extensively to the field of Agricultural and Biological Sciences. Their research spanned multiple subfields, including Plant Science, Agronomy and Crop Science, Soil Science, Ecology, and Ecology, Evolution, Behavior and Systematics.

The scientist's work covered several focused topics, particularly:

  • Plant nutrient uptake and metabolism
  • Agronomic Practices and Intercropping Systems
  • Soil Carbon and Nitrogen Dynamics
  • Cassava research and cyanide
  • Crop Yield and Soil Fertility
  • Plant Micronutrient Interactions and Effects
  • Remote Sensing in Agriculture

Throughout their career, Mäkelä published in various academic venues. Frequent publication sources included:

  • SSRN Electronic Journal
  • Frontiers in Sustainable Food Systems
  • Agronomy
  • Industrial Crops and Products
  • Frontiers in Plant Science

Mäkelä's recent papers reflect the breadth of their research contributions. Notable papers included:

  • "Sustainable Mixed Cropping Systems for the Boreal-Nemoral Region," 2020, Frontiers in Sustainable Food Systems
  • "Apoplastic Hydrogen Peroxide in the Growth Zone of the Maize Primary Root. Increased Levels Differentially Modulate Root Elongation Under Well-Watered and Water-Stressed Conditions," 2020, Frontiers in Plant Science
  • "Seedling Growth and Phosphorus Uptake in Response to Different Phosphorus Sources," 2020, Agronomy
  • "Plant residue mulch increases measured and modelled soil moisture content in the effective root zone of maize in semi-arid Kenya," 2021, Soil and Tillage Research
  • "Red-Green-Blue and Multispectral Imaging as Potential Tools for Estimating Growth and Nutritional Performance of Cassava under Deficit Irrigation and Potassium Fertigation," 2021, Remote Sensing

The scientist collaborated frequently with several researchers throughout their career. Frequent co-authors included:

  • Daniel O. Wasonga
  • Laura Alakukku
  • Clara Lizarazo
  • Juuso Tuure
  • Matti Räsänen

Mäkelä received recognition in their field, having been awarded the Prince Mahidol Award in 2002 and the Robert Koch Prize in 1970.

Best Publications

  • Serological evidence of an association of a novel Chlamydia, TWAR, with chronic coronary heart disease and acute myocardial infarction.

    P Saikku;P Saikku;K Mattila;K Mattila;M.S Nieminen;M.S Nieminen;J.K Huttunen;J.K Huttunen

  • Efficacy of a Pneumococcal Conjugate Vaccine against Acute Otitis Media

    Eskola J;Kilpi T;Palmu A;Jokinen J

  • ANTIGENIC SIMILARITIES BETWEEN BRAIN COMPONENTS AND BACTERIA CAUSING MENINGITIS: Implications for Vaccine Development and Pathogenesis

    Jukka Finne;Maija Leinonen;P.Helena Mäkelä

  • The Protective Level of Serum Antibodies to the Capsular Polysaccharide of Haemophilus influenzae Type b

    Relena Käyhty;Heikki Peltola;Viena Karanko;P. Helena Mäkelä

  • Haemophilus influenzae Type b Capsular Polysaccharide Vaccine in Children: A Double-Blind Field Study of 100,000 Vaccinees 3 Months to 5 Years of Age in Finland

    Heikki Peltola;Helena Käythy;Aulikki Sivonen;P. Helena Mäkelä

  • Lipopolysaccharide Heterogeneity in Salmonella typhimurium Analyzed by Sodium Dodecyl Sulfate/Polyacrylamide Gel Electrophoresis

    E. Tapio Palva;P. Helena Mäkelä

  • Etiology of childhood pneumonia: serologic results of a prospective, population-based study.

    Tarja Heiskanen-Kosma;Matti Korppi;Camilla Jokinen;Seija Kurki

  • Prevention of Hemophilus influenzae type b bacteremic infections with the capsular polysaccharide vaccine.

    H Peltola;H Käyhty;M Virtanen;P H Mäkelä

  • Clinical Efficacy of Meningococcus Group A Capsular Polysaccharide Vaccine in Children Three Months to Five Years of Age

    Heikki Peltola;P. Helena Mäkelä;Helena Käyhty;Hannele Jousimies

  • Serotypes, hemolysin production, and receptor recognition of Escherichia coli strains associated with neonatal sepsis and meningitis.

    T K Korhonen;M V Valtonen;J Parkkinen;V Väisänen-Rhen

  • P-fimbriated clones among uropathogenic Escherichia coli strains.

    V Väisänen-Rhen;J Elo;E Väisänen;A Siitonen

  • Reduction of oropharyngeal carriage of Haemophilus influenzae type b (Hib) in children immunized with an Hib conjugate vaccine.

    Unknown

  • Protective efficacy of a second pneumococcal conjugate vaccine against pneumococcal acute otitis media in infants and children: randomized, controlled trial of a 7-valent pneumococcal polysaccharide-meningococcal outer membrane protein complex conjugate vaccine in 1666 children.

    Terhi Kilpi;Heidi Åhman;Jukka Jokinen;Kari S. Lankinen

  • MANNOSE-RESISTANT HAEMAGGLUTINATION AND P ANTIGEN RECOGNITION ARE CHARACTERISTIC OF ESCHERICHIA COLI CAUSING PRIMARY PYELONEPHRITIS

    Vuokko Väisänen;Vuokko Väisänen;LeifG. Tallgren;LeifG. Tallgren;P. Helena Mäkelä;P. Helena Mäkelä;Gunilla Källenius;Gunilla Källenius

  • Polysaccharide Vaccines of Group A Neisseria meningitidis and Haemophilus influenzae Type b: A Field Trial in Finland

    P. Helena Mäkelä;Heikki Peltola;Helena Käyhty;Hannele Jousimies

  • Clinical Efficacy of Pneumococcal Vaccine in the Elderly: A Randomized, Single-Blind Population-Based Trial

    Irma Koivula;Marja Stén;Maija Leinonen;Pirjo Helena Mäkelä

  • Characterization of the lipopolysaccharide from the polymyxin-resistant pmrA mutants of Salmonella typhimurium.

    M. Vaara;T. Vaara;M. Jensen;I. Helander

  • Microbial etiology of community-acquired pneumonia in the adult population of 4 municipalities in eastern Finland.

    Camilla Jokinen;Leena Heiskanen;Helvi Juvonen;Sakari Kallinen

  • Lipopolysaccharide nomenclature--past, present, and future

    Unknown

  • Cleavage of the polysialosyl units of brain glycoproteins by a bacteriophage endosialidase. Involvement of a long oligosaccharide segment in molecular interactions of polysialic acid.

    J Finne;P H Mäkelä

  • Serum antibodies after vaccination with Haemophilus influenzae type b capsular polysaccharide and responses to reimmunization: no evidence of immunologic tolerance or memory.

    Helena Käyhty;Viena Karanko;Heikki Peltola;P. Helena Mäkelä

  • The genus-specific antigen of Chlamydia: resemblance to the lipopolysaccharide of enteric bacteria

    M Nurminen;M Leinonen;P Saikku;PH Makela

  • Bacterial coinfection in children hospitalized with respiratory syncytial virus infections

    Matti Korppi;Maija Leinonen;Markku Koskela;P. Mäkelä

  • Invasiveness of serotypes and clones of Streptococcus pneumoniae among children in Finland.

    William P. Hanage;Tarja H. Kaijalainen;Ritva K. Syrjänen;Kari Auranen

Frequent Co-Authors

Heikki Peltola
Heikki Peltola University of Helsinki
Helena Käyhty
Helena Käyhty Finnish Institute for Health and Welfare (THL)
Juhani Eskola
Juhani Eskola Finnish Institute for Health and Welfare (THL)
Timo K. Korhonen
Timo K. Korhonen University of Helsinki
Maija Leinonen
Maija Leinonen Finnish Institute for Health and Welfare (THL)
Mikael Rhen
Mikael Rhen Karolinska Institute
Elja Arjas
Elja Arjas University of Helsinki
Martti Vaara
Martti Vaara University of Helsinki
Seppo Sarna
Seppo Sarna University of Helsinki
Hiroshi Nikaido
Hiroshi Nikaido University of California, Berkeley

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