Thumbnail Image

Thesis

Browse

2019 - 201912020 - 20221
Reset filters
Author: Vaishali × End date: 2022 × Thesis Type: M.Sc ×
Reset filters

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    ThesisItemOpen Access
    Communication behaviour of dairy farmers in Punjab
    (Punjab Agricultural University, Ludhiana, 2022) Vaishali; Gupta, Ritu Mittal
    The present investigation was conducted to analyze the communication behaviour of dairy farmers in Punjab. The aim of the study was to analyze the communication behaviour along its different parameters i.e. information seeking, processing and dissemination behaviour besides the constraints faced by dairy farmers to access the various information sources. A total of 160 dairy farmer (male and female) from three socio-cultural zones of Punjab who had at least four milch animalsconstituted the sample for the study. Data were collected through a well-structured and pre tested interview schedule. Gender desegregated role performance in dairy shows that males were more responsible for the dairy activities like feeding, breeding, animal health care, marketing while in the activities like finance, shed house cleaning, milk sale and produce records female‟s involvement was more. Information seeking was found to be associated with gender while information processing was associated with family type and information dissemination was associated with marital status. Overall communication behaviour of majority male dairy farmers lies in the medium level while female dairy farmers had low communication behaviour. Information seeking, information processing, information dissemination and communication behaviour all were found to be significantly related to each other. Communication behaviour was found to be significantly related with age and qualification. Female respondents faced personal, technical/ organizational as well as psychological constraints significantly more than their male counterparts. Therefore, innovative strategies using IT and social networking sites should be chalked out to provide information to females as well so that information is effectively transferred and readily accepted by dairy farming families.
  • Thumbnail Image
    ThesisItemOpen Access
    Synthesis and evaluation of cobalt oxide nanoparticles, grapheme oxide and their nanocomposite as superoxide dismutase mimics
    (Punjab Agricultural University, Ludhiana, 2019) Vaishali; Manpreet Kaur
    In the present study, superoxide dismutase mimics activity of pristine and cetyl trimethyl ammonium bromide (CTAB) coated cobalt oxide nanoparticles (NPs) and their graphene oxide (GO) nanocomposite (NC) was compared. The NPs, GO and NCs were synthesized employing sol-gel precursor, modified Hummers method and sonication method respectively. The synthesized NPs, NC were characterized using various techniques viz. SEM, XRD, FT-IR spectroscopy, BET analysis and TEM. CTAB coated cobalt oxide NPs showing highest activity was used for synthesis of NC with GO. Co3O4-GO NC with 1:2 displayed maximum activities among the synthesized NC, pristine GO and Co3O4 NPs. Enzyme mimic activity was evaluated using Marklund and Marklund method. Optimum pH, temperature, substrate concentration, NPs dose were 8.0, 25°C, 10 mM, and 2 mg respectively. Contact time studies were carried out for 3 min using pyrogallol as substrate. Kinetics studies of syntheised NPs showing best activity were conducted using Michelis Menton eqaution. The calculated Km and Vmax value of the NC were 0.021 mM and 0.0884 μmol sec-1 respectively. Thus NC can be further explored for replacing dismutase for varied applications.