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19
November
2020

Professor Hazem Kalaji among the most cited scientists in the world

Professor Hazem M. Kalaji from the Department of Plant Physiology, Institute of Biology of WULS-SGGW, was one of the four Polish scientists on the list of the most cited academics. The list is published by Web of Science .

The list of the world's most cited scientists (Highly Cited Researchers) was announced on November 18 this year by Clarivate Analytics. This year, the list included almost 6,400 people, including four from Poland, including prof. dr hab. Hazem M. Kalaji. Presence in the group of Highly Cited Researchers is highly rewarded in the Shanghai Ranking. In the methodology of the Shanghai Ranking, the presence of scientists from a given university on the Highly Cited Researchers list is as high as 20%.

In addition to professor H. M. Kalaji, the following Polish researchers are also present on the prestigious list: Piotr Ponikowski from the Medical University of Piastów Śląskich in Wrocław, Adam Torbicki from the Medical Center of Postgraduate Education in Warsaw and Jacek Namieśnik from the Gdańsk University of Technology. In 2019, Professor Kalaji was also on the list of the most cited scientists.

The list of the most cited researchers is published by the international analytical company Clarivate Analytics based on the Web of Science database. It indicates researchers whose publications were among the 1% most cited in 21 fields of research. The majority of the researchers included in the list are from the United States (41.5%). Out of the 6,389 people on the list, 3,896 conduct research assigned to specific research areas, and 2,493 conduct interdisciplinary research.

The research works of Professor Hazem M. Kalaji are focused i.a. on the fluorescence of chlorophyll, as well as on bioenergetics and the functioning of the photosynthetic apparatus of plants.

In particular:

  • assessment of both phases of photosynthesis, dependent and independent on photosynthetically active radiation, based on the measurement of the main parameters of gas exchange, chlorophyll content and efficiency of absorption of radiant energy by this pigment,
  • learning about the functioning of the photosynthetic apparatus of plants in various growth environments, i.e. under controlled (phytotron), semi-controlled (greenhouse, vegetation hall) and field conditions,
  • study of the reaction of the second plant's photosystem to biotic and abiotic stress using the chlorophyll fluorescence technique with a detailed analysis of its signal (JIP test)
  • analysis of the complex responsible for water decomposition and the study of energy flow in the second photosystem (light energy absorption,  its capture by reaction centers and electron transport rate),
  • developing recommendations for the needs of agrotechnics and establishing new selection criteria, which should contribute to acceleration of biological and breeding progress through rapid and mass screening.