Autor: Nirola, R. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Evaluation of metal uptake factors of native trees colonizing an abandoned copper mine e a quest for phytostabilization
Autorzy:: Nirola, R.
Megharaj, M.
Palanisami, T.
Aryal, R.
Venkateswarlu, K.
Naidu, R.
Powiązania:: https://bibliotekanauki.pl/articles/92134.pdf
Data publikacji:: 2015
Wydawca:: Główny Instytut Górnictwa
Tematy:: abandoned mine site
heavy metals
bioconcentration factor
translocation factor
enrichment factor
phytostabilisation
opuszczone tereny kopalniane
metale ciężkie
współczynnik biokoncentracji
współczynnik translokacji
współczynnik wzbogacenia
fitostabilizacja
Opis:: Accumulation and enrichment of heavy metals in the above ground parts of Australian native Acacia pycnantha (Ap) and Eucalyptus camaldulensis (Ec) growing in an abandoned copper mine located in Kapunda, South Australia have been studied. Cu and other metals (Na, Al, K, Ca, Fe, Zn, Cd and Pb) in plants and corresponding soils were analysed to evaluate plant interaction with soils containing heavy metals. As per the total metal analysis of leaf and corresponding soil samples, Ap accumulated 93.6 mg kgˉ¹ of Cu in leaf while the corresponding soil concentration was 1632 mg kgˉ¹. The Ec accumulated 5341 mg kgˉ¹ of Cu in leaf while the concentration of this heavy metal in soil was 65 mg kgˉ¹ in soil. The ESEM spectral analysis also showed a high leaf concentration of Cu in Ec (7%) as against only 0.12% in Ap. The average bioconcentration factor for Cu, Zn,Cd and Pb in Ec wasmuch higher than that of Ap. Similarly, enrichment factor was more in Ec for Cu, Zn and Pb than in Ap. In contrast, translocation factor for only Zn and Cd was high in Ap. This study points out that Ec and Ap have different stabilising potential in remediating heavy metals like Cu in mined soils.
Źródło:: Journal of Sustainable Mining; 2015, 14, 3; 115-123
2300-1364
2300-3960
Pojawia się w:: Journal of Sustainable Mining
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Omicron sub-variants: is the world going to witness another wave?
Autorzy:: Aggarwal, A.
Nirola, A.
Singh, R.
Goel, R.
Gupta, A.
Gambhir, R.S.
Powiązania:: https://bibliotekanauki.pl/articles/28765575.pdf
Data publikacji:: 2022
Wydawca:: Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Opis:: Omicron, the new ‘Variant of Concern’ of SARS-CoV-2, is rapidly evolving into new sub-variants or sub-lineages (BA.1, BA.2 etc.). These sub-variants have higher transmissibility, decreased vaccine effectiveness and increased risk of reinfection. As a result, many nations across the globe are reporting surge in infections which is a matter of concern. Understanding Omicron and its sub-variants is vital for development of public health policy and preventing disease transmission. The present paper throws a spotlight on the newly detected sub-variants of Omicron as reported in ongoing researches which are available only in pre-print form and also the importance of a booster dose of the vaccine. Information regarding recent research on a new nasal vaccine formulation, which may be effective against the new variants, is also highlighted in the paper.
Źródło:: Roczniki Państwowego Zakładu Higieny; 2022, 73, 2; 159-162
0035-7715
Pojawia się w:: Roczniki Państwowego Zakładu Higieny
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Assessment of dental professionals’ maintenance of management practices developed and incorporated during COVID-19 pandemic – a cross-sectional study
Autorzy:: Singh, R.
Sekhon, T.
Sekhon, S.
Kumar, M.
Nirola, A.
Gambhir, R.S.
Powiązania:: https://bibliotekanauki.pl/articles/28765158.pdf
Data publikacji:: 2023
Wydawca:: Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Opis:: Background. COVID-19 pandemic has been a source of emerging public health problems for the past few years. Due to its contagious nature, health care professionals especially dentists, incorporated various modifications in their practices to prevent themselves and their patients from the risk of getting infected. Objective. The present study aims to assess whether dental professionals are still continuing with those modifications in practice in current times. Materials and Methods. The present study was conducted on 415 subjects after getting due approval from concerned authorities and consent from the subjects. Systematic random sampling methodology was employed for selection for study sample. The study employed a self-constructed questionnaire which was divided into 2 parts and information regarding demographic profile, practice modifications and safety protocols was gathered from subjects. Statistical analysis was conducted using Chi-square test and multiple regression analysis. Results. Only 8.6% of subjects were currently continuing with their all previous practice modifications. A vast majority of subjects (83.8%) were not deferring treatment of patients showing suspicious symptoms. Approximately 89% of subjects were not sanitizing the operating area at the end of the working day. More than two-thirds (76.4%) of the subjects stated that the pandemic was over. Female gender (OR:1.67) and high level of education (OR:2.45) had an important effect on the continuation of practice modifications. Conclusion. Very few subjects were adhering to all practice modifications previously incorporated. Dental professionals should not let their guard down even if COVID-19 cases have reduced considerably. The information collected will be useful for the dental community and further studies should be carried out.
Źródło:: Roczniki Państwowego Zakładu Higieny; 2023, 74, 3; 309-314
0035-7715
Pojawia się w:: Roczniki Państwowego Zakładu Higieny
Dostawca treści:: Biblioteka Nauki

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