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Guest lecture: the role of higher education in strong democracies

05 April 2024 | Story DR NITHA RAMNATH

The Vice-Chancellor and Principal of the University of the Free State, Prof Francis Petersen, has the pleasure of inviting you to a guest lecture presented by H.E. Dr Reuben E Brigety, the United States Ambassador to South Africa.

Date: Tuesday 23 April 2024

Time: 15:00-16:00

Venue: Centenary Complex, Bloemfontein Campus

RSVP here by no later than 19 April 2024.

About the speaker

Reuben E Brigety II was confirmed as the 29th United States Ambassador to the Republic of South Africa on 21 July 2022.

Previously, he served as the 17th Vice-Chancellor of the University of the South and Mayor of Sewanee from June 2020 until December 2021, and as the Dean of the Elliott School of International Affairs of the George Washington University from 2015 to 2020. Ambassador Brigety’s most recent diplomatic assignment was serving as the US Representative to the African Union and US Permanent Representative to the UN Economic Commission for Africa from September 2013 to September 2015. Previously, Ambassador Brigety served as the Deputy Assistant Secretary of State in the Bureau of African Affairs and as Deputy Assistant Secretary of State in the Bureau of Population, Refugees, and Migration.

A native of Jacksonville, Florida, Ambassador Brigety also held appointments as Assistant Professor of Government and Politics at George Mason University and at the School of International Service at the American University between August 2003 and April 2009. In addition, Ambassador Brigety was a researcher with the Arms Division of Human Rights Watch (HRW) from August 2001 to May 2003, where he conducted research missions in Afghanistan and Iraq. Before joining HRW, Ambassador Brigety was an active-duty US naval officer and held several staff positions in the Pentagon and in fleet support units.

Ambassador Brigety is a 1995 Distinguished Midshipman Graduate of the US Naval Academy, where he earned a BSc in Political Science (with merit), served as the Brigade Commander, and received the Thomas G Pownall Scholarship. He also holds an MPhil and a PhD in International Relations from the University of Cambridge, England, as well as a Doctor of Humane Letters (honoris causa) from Old Dominion University. Ambassador Brigety is a life member of the Council on Foreign Relations, a recipient of the council’s International Affairs Fellowship, and a fellow of the American Academy of Diplomacy.He is married to Dr Leelie Selassie, and together they have two sons.

News Archive

Plant eco-physiologist finds effective solutions for crop optimisation

2016-07-24

The bio-stimulant was tested on
this citrus. This is the first time
that the product has been tested
on a crop.

In a time characterised by society facing increasing population growth, food crises, and extreme climatic conditions such as drought, it is essential for farmers to integrate science with their work practices in order to optimise crops.

Role of photosynthesis and plant sap data

By knowing how to use photosynthesis and plant sap data for determining plant health, fast and effective solutions could be established for the optimisation of crops. This technique, which could help farmers utilise every bit of usable land effectively, is the focus of Marguerite Westcott’s PhD study. She is a junior lecturer and plant eco-physiologist in die Department of Plant Sciences at the University of the Free State.

Westcott uses this technique in her studies to prove that a newly-developed bio-stimulant stimulates plants in order to metabolise water and other nutrients better, yielding increased crops as a result.

Agricultural and mining sectors benefit from research

The greatest part of these projects focuses on the agricultural sector. Westcott and a colleague, Dr Gert Marais, are researching the physiology of pecan and citrus trees in order to optimise the growth of these crops, thus minimising disease through biological methods. Field trials are being conducted in actively-producing orchards in the Hartswater and Patensie areas in conjunction with the South African Pecan Nut Producers Association (SAPPA) amongst others.

The principles that Westcott applies in her research are also used in combination with the bio-stimulant in other studies on disturbed soil, such as mine-dump material, for establishing plants in areas where they would not grow normally. This is an economical way for both the agricultural and mining sectors to improve nutrient absorption, stimulate growth, and contribute to the sustainable utilisation of the soil.

The bio-stimulant contributes to the immunity of the plants.
It was tested in these pecan nut orchards (Hartswater).

Soil rehabilitation key aspect in research projects

“One of two things is happening in my research projects. Either the soil is rehabilitated to bring about the optimal growth of a plant, or the plants are used to rehabilitate the soil,” says Westcott.

Data surveys for her PhD studies began in 2015. “This will be a long-term project in which seasonal data will be collected continuously. The first set of complete field data, together with pot trial data, will be completed after the current crop harvest,” says Westcott.

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