Volume-19 ~ Issue-10 ~ Oct. 2026

Abstract: The Schiff base ligand N′-[(pyridin-2-yl)methylidene]isonicotinohydrazide (HL) was prepared by condensation of isonicotinohydrazide with pyridine-2-carbaldehyde under reflux in methanol. The corresponding gadolinium(III) complex was obtained by reaction of HL with gadolinium(III) chloride hexahydrate. The complex was characterized by elemental analysis, IR and UV–Vis spectroscopy, molar conductivity measurements and magnetic susceptibility......

Keywords: isonicotinohydrazide; Schiff base; gadolinium(III); complex; X-ray diffraction

[1] Nayak, D., Lahiri, S., (1999). Application of radioisotopes in the field of nuclear medicine. Journal of Radioanalytical and Nuclear Chemistry 242 423–432. https://doi.org/10.1007/BF02345573
[2] Jin, L., Wu, Y., Wang, Y., Liu, S., Zhang, Y., Li, Z., Chen, X., Zhang, W., Xiao, S., Song, Q., (2019). Mass-manufactural lanthanide-based ultraviolet B microlasers. Advanced Materials, 31, 1807079. https://doi.org/10.1002/adma.201807079
[3] Bao, G. (2020). Lanthanide complexes for drug delivery and therapeutics. Journal of Luminescence, 228, 117622. https://doi.org/10.1016/j.jlumin.2020.117622
[4] Zhong, Y., Gu, J., Su, Y., Zhao, L., Zhou, Y., & Peng, J. (2022). Real-time screening of hepatotoxins in natural medicine by peroxynitrite responsive lanthanide-based NIR-II luminescent probes. Chemical Engineering Journal, 433, 133263. https://doi.org/10.1016/j.cej.2021.133263.
[5] Launiere, C.A., Gelis, A.V., (2016). High-precision droplet-based microfluidic determination of americium(III) and lanthanide(III) solvent extraction separation kinetics. Industrial & Engineering Chemistry Research, 55, 2272–2276. https://doi.org/10.1021/acs.iecr.5b04691

Abstract: Soil contamination by trace metals is a significant environmental issue in the sense that any persistent metals, which can accumulate in the soil, can pose a risk to human health via contaminated dust, direct soil contact, food crops and water. The present study aims to assess the spatial and seasonal distribution of the selected trace metals in the soils collected from five different land-use categories of Gaya, Bihar, viz. domestic, transport, agricultural, industrial......

Keywords: Gaya; soil contamination; trace metals; copper; lead; chromium; cadmium; land use; human health; environmental monitoring

[1]. Ji, X., Abakumov, E., Antcibor, I., Tomashunas, V., Knoblauch, C., Zubzycki, S., & Pfeiffer, E. M. (2019). Influence of anthropogenic activities on metals in arctic permafrost: a characterization of benchmark soils on the Yamal and Gydan peninsulas in Russia. Archives of environmental contamination and toxicology, 76(4), 540-553.
[2]. Ranjan, R. K., Ramanathan, A. L., Parthasarathy, P., & Kumar, A. (2013). Hydrochemical characteristics of groundwater in the plains of Phalgu River in Gaya, Bihar, India. Arabian Journal of Geosciences, 6(9), 3257-3267.
[3]. Singh, J., Parveen, N., Singh, A., Giri, S., & Singh, A. K. (2025). Human health risk assessment of dietary metal intake through commonly consumed vegetables in Gaya District, Bihar, India. International Journal of Environmental Health Research, 35(11), 3171-3185.
[4]. Saumya, K., Aslam, A., & Ranjan, R. K. (2026). Heavy metals distribution and associated ecological risk assessment of roadside dust at prominent bus stands in Gaya, Bihar (India). Arabian Journal of Geosciences, 19(1), 3.
[5]. Kumar, S., & Maurya, N. S. (2025). Analysis of heavy metal contamination in groundwater and associated probabilistic human health risk assessment using Monte Carlo simulation: A case study in Gaya, Bihar. Journal of Water and Health, 23(5), 630-647.

Abstract: Background: The fruits of Pseudospondias microcarpa (A. Rich) Engl. are highly prized by the rural population of northern Congo for their sweet and tangy flavour, as well as their sweet aroma. Studies have shown that the red colour of these fruits is due to carotenoids, but no in-depth study has been carried out in this regard. The aim of this study.....

Keywords: Pseudospondias microcarpa; carotenoids, TLC; UHPLC-APCI-MS/MS; UV-Vis spectrophotometry

[1] Nayak, D., Lahiri, S., (1999). Application of radioisotopes in the field of nuclear medicine. Journal of Radioanalytical and Nuclear Chemistry 242 423–432. [1]. Maoka T. (2020). Carotenoids as natural functional pigments. Journal of natural medicines. 74(1), 1-16.
[2]. Pintea A., Dulf FV, Bunea A, Socaci SA, Pop EA, Opriță VA, et al. (2020). Carotenoids, Fatty Acids, and Volatile Compounds in Apricot Cultivars from Romania-A Chemometric Approach. Antioxidants. 9(7), 562[3].
Brendler T & Williamson EM. (2019). Astaxanthin: How much is too much? A safety review. Phytotherapy Research. 33(12), 3090-3111.
[4]. Novoveská L, Ross ME, Stanley MS, Pradelles R, Wasiolek V & Sassi JF. (2019). Microalgal carotenoids: A review of production, current markets, regulations, and future direction. Marine drugs. 17(11), 640.
[5]. Nabi F, Arain MA, Rajput N, Alagawany M, Soomro J, Umer M, et al. ( 2020). Health benefits of carotenoids and potential application in poultry industry: A review. Journal of animal physiology and animal nutrition, Vol. 104, n° 6, pp.1809-1818

Abstract: Benzimidazole is one of the heterocycles associated with diverse biological potential such as anthelmintic, antacid, antimicrobial, anticancer, and antiviral. Based on the importance of this moiety in medicinal drugs, both clinically approved and in clinical trials, many novel synthetic approaches have been reported for benzimidazoles. Nonetheless, there is a need for novel benzimidazoles to overcome drug resistance and side effects. The present paper covers.....

Keywords:Benzimidazole, 2-([1,1'-biphenyl]-4-yl)-6-methyl-1H-benzo[d]imidazole and 2-([1,1'-biphenyl]-4- yl)-6-chloro-1H-benzo[d]imidazole anti- bacterial activity, UV, IR, 1H NMR, 13C NMR, mass spectra, CHN analysis

[1]. Al-Mulla, A. A review: Biological importance of heterocyclic compounds. Der Pharma Chem. 2017, 91–147.
[2]. Kabir, E.; Uzzaman, M. A review on biological and medicinal impact of heterocyclic compounds. Results Chem. 2022, 4,
100606Alheety, N.F.; Mssdf, A.K.; Besbes, R.; Alheety, M.A. Influence of Ring Size on Hydrogen Storage Performance of cis-
Aziridine Derivatives: A Thermodynamic Investigation. Macromol. Symp. 2025, e70208.
[3]. Alheety, N.F.; Al-Hadithy, S.; Alheety, M.A.; Besbes, R. Color Fastness of Newly SynthesizedThiadiazole Derivatives According to
ISO 105 on Cotton Fiber. Macromol. Symp. 2025, e70210.
[4]. Bansal, Y.; Silakari, O. The therapeutic journey of benzimidazoles: A review. Bioorg. Med. Chem. 2012, 20, 6208–6236.
[5]. Narasimhan, B.; Sharma, D.; Kumar, P. Benzimidazole: A medicinally important heterocyclic moiety. Med. Chem. Res. 2012, 21,
269–283.

Abstract: This study examined the impact of Igbo Apprenticeship System (Igba Boi) on unemployment reduction in Abakaliki, Ebonyi State, Nigeria. The aim of the study is to examine the extent mentorship, practical learning, contact networking, trust building and share interest reduced unemployment in Ebonyi State. The question is, how can these practical steps aid in the reduction of unemployment? The area of study is Abakaliki Motor Spare Parts (Site). Questionnaire.....

Keywords: Mentorship, entrepreneur, Igba Boi, practical learning, networking, shared interest, unemployment

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a.
Business Sustainability in Anambra State South East Nigeria, International Journal of Innovative Research in Social Sciences and Strategic Management Techniques, 7(1), p. 184-193. https://internationalpolicybrief.org/wp-content/uploads/2023/10/ARTICLE14-28.pdf accessed on 13/10/2026.