ELFT HÍRADÓ

[mcsete AT physx.u-szeged.hu]

Seminar

Introductory talks of PhD fellow students
Date: 13, December (Wednesday) 2023, 3 pm
Location: SZTE TTIK FI Budó Ágoston auditorium & online
https://join.skype.com/Gea4S6DMmmt7

Supervisors: Prof. Dr. Bozoki Zoltan and Dr. Ajtai Tibor.
HUN-REN-SZTE Research Group
for Photoacoustic Monitoring of Environmental Processes

1. Vineet Srivastava
Effects of Microplastics on Soil Properties and Wheat Crop  
Productivity in Tropical Agroecosystem of UP, India.
(Dissertation work of M.Sc Environmental Science)

Here, we investigated the possible effects of microplastics on  
physicochemical properties of soil and in turn on productivity of  
wheat crop. Significant changes were observed in root biomass, total  
biomass, bulk density, soil moisture, root-shoot ratio and electrical  
conductivity of soil. Factors responsible for increased productivity  
seemed to be elicited due to microplastic contamination. Preliminary  
findings reported here imply that the pervasive microplastic  
contamination in soil may show positive effects for agroecosystems.


2. Rana Khawar Ashfaq
Title: Measurement of the photoionization cross-section of  
autoionizing resonances of Xenon
We observed the autoionization resonance curve and measured  
photoionization cross-section for the excited states of the Xenon gas.  
using multi-step laser excitation and the saturation technique.  
Optimization of the photoionization signal was made by measuring it on  
the autoionization resonance peak.

3. Jamshed Saeed Shah
Title: Fluorescence spectroscopy (FS) and chemometric techniques for  
analysing Mycobacterium tuberculosis

The study presents an investigation into the use of fluorescence  
spectroscopy (FS) and chemometric techniques for analysing  
Mycobacterium tuberculosis in acid-fast bacillus (AFB) cultures.  
Samples, collected from TB-suspected patients in various regions of  
Khyber Pakhtunkhwa, Pakistan, were cultured at the Provincial TB  
Reference Lab, Peshawar. Fluorescence spectra exhibited differences  
between TB positive, TB negative, and cultured media samples, with  
distinct peaks at 467 nm and 490 nm. Principal component analysis  
(PCA) effectively clustered the data into three groups based on  
fluorescence emission features. The findings propose FS as an  
alternative confirmation tool for mycobacterium detection through AFB  
culture, offering a fast, cost-effective, and user-friendly method for  
early detection.

Currently Ph.D. fellow students at the Department of Optics and  
Quantum Electronics, University of Szeged, their research topic is  
focused on the theoretical and experimental investigation of the  
mid-IR spectrum of airborne aerosol particles.

Everyone is welcome to attend.

Dr. Mária Csete



----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.

Attachment: PhD_fellow_students.png
Description: PNG image