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Wyświetlanie 1-10 z 12
Tytuł:
Antibacterial activity of extracts of leaves of Nerium indicum in combination with antibiotics
Autorzy:
Vyas, P.
Suthar, A.
Joshi, D.
Powiązania:
https://bibliotekanauki.pl/articles/11723.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:
Methanol and ethanol extract showed antibacterial activity in range of 0-11 at 10 mg/mL at against all tested bacterial species. Methanol extract with amoxicillin exhibited effective inhibition E. coli. This combination showed antagonistic effect against B. subtilis and S. aureus. Interaction of ethanol extract with amoxicillin also showed effective inhibition against E. coli and decreased activity against B. subtilis and S. aureus. Methanol extract did not show inhibition against P. aeruginosa but it enhanced activity of ciprofloxacin on combination. Ethanol extract also exhibited effective inhibition against P. aeruginosa on combination with ciprofloxacin. But antagonist effect was observed on interaction of both extract with ciprofloxacin against other bacterial species. Interaction of methanol and ceftazidime showed mostly decreased or indifferent effect against all bacterial species. Ethanol extract with ceftazidime resulted in higher inhibition against E. coli. Combination of methanol extract with erythromycin showed higher inhibition against E. coli and also very effective inhibition against S. aureus. This combination resulted in decreased activity against B. subtilis. Ethanol extract with erythromycin also showed synergistic effect against S. aureus and effective inhibition against E. coli. These results indicate that both methanol and ethanol extract has potential to enhance the combination effect with erythromycin against S. aureus and E. coli.
Źródło:
International Letters of Natural Sciences; 2015, 46
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Micropropagation of Pluchea lanceolata (Oliver and Hiern.) using nodal explant
Autorzy:
Kher, M.M.
Joshi, D.
Nekkala, S.
Nataraj, M.
Raykundaliya, D.P.
Powiązania:
https://bibliotekanauki.pl/articles/2051.pdf
Data publikacji:
2014
Wydawca:
Instytut Ogrodnictwa
Tematy:
Pluchea lanceolata
micropropagation
nodal explant
thidiazuron
6-benzylaminopurine
kinetin
2-isopentenyladenine
medicinal plant
Compositae
antiinflammatory activity
Źródło:
Journal of Horticultural Research; 2014, 22, 1
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and characterization of diversely substituted pyrimidine-3-carboxamide and their antimicrobial evaluation
Autorzy:
Senjani, Hardik K.
Joshi, H. D.
Powiązania:
https://bibliotekanauki.pl/articles/1031771.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
1-4-dihydropyrimidine
analgesic
anti-inflammatory
antibacterial
anticonvulsant
antifungal
antimicrobial
antituberculosis
antitumor
biginalli
dihydropyrimidine
insecticidal
multi-component reaction
pyrimidine
Opis:
Pyrimidine related fused heterocycles are attracted to every chemist during the last decade for their biological and chemotherapeutic importance. Pyrimidine derivatives play a vital role in their broad spectrum of biological activities including antituberculosis, anticonvulsant, anti-inflammatory, insecticidal, antifungal, analgesic, and antitumor properties and there of interest as potential bioactive molecules. The nitrogen-containing fragment may be an amidine, urea, thiourea, or guanidine, and adamantine homologs and aromatic aldehyde serve as an excellent illustrative example in that it readily undergoes as Biginali MCRs reaction. Pyrimidines and their derivatives are considered to be important for drugs and agricultural chemicals. Pyrimidine derivatives possess several interesting biological activities. Pyrimidine is a basic nucleus in DNA & RNA, it is associated with diverse biological activities so, we have designed and prepared a novel highly functionalized pyrimidine library of 1,4 DHP and DHPM via a one-pot multi-component (MCRs) synthesis and we screened for antimicrobial activity against various strains.
Źródło:
World Scientific News; 2020, 150; 39-77
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An efficient protocol for the synthesis of novel 2-amino-N-(1-(aryl-2-oxo-2Hchromen-3-yl)ethylidene) benzohydrazides act as an antimicrobial agents
Autorzy:
Rola, R. R.
Joshi, H. D.
Powiązania:
https://bibliotekanauki.pl/articles/1031432.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
2-amino-N'-(1-(6-bromo-2-oxo-2H-chromen-3-yl)ethylidene)benzohydrazides
antimicrobial evaluation
efficient procedure
Opis:
We report here the protocol for the preparation of 2-amino-N'-(1-(aryl-2-oxo-2H-chromen-3-yl)ethylidene)benzohydrazides compounds in moderate to excellent yields (46–86%) within a short reaction time (10–15 min), through a clean and efficient procedure. Additionally, the method has a wide substrate scope and provides an accessible route for the large-scale direct synthesis of 2-amino-N'-(1-(aryl-2-oxo-2H-chromen-3-yl)ethylidene)benzohydrazides. The products were assayed for their in vitro biological assay antimicrobial evaluation against two Gram-negative bacteria Escherichia coli MTCC 442, Pseudomonas aeruginosa MTCC 441 and antifungal activity against Candida albicans MTCC 227, Aspergillus Niger MTCC 282, Aspergillus clavatus MTCC 1323 at different concentrations which compared with ampicillin, chloramphenicol, ciprofloxacin, norfloxacin, nystatin, and greseofulvin in as standard drugs which are presented.
Źródło:
World Scientific News; 2021, 152; 15-26
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil analysis gis-based fertility assessment and mapping of agricultural research station, Pakhribas, Dhankuta, Nepal
Autorzy:
Khadka, D.
Lamichhane, S.
Bhantana, P.
Timilsina, A.P.
Ansari, A.R.
Sah, K.
Joshi, B.D.
Joshi, S.
Powiązania:
https://bibliotekanauki.pl/articles/971576.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
ars pakhribas
fertility management
soil analysis
soil fertility maps
soil properties
Opis:
Soil fertility evaluation has been considered as a most effective tool for sustainable planning of a particular region. This study was conducted to determine the soil fertility status of the Agricultural Research Station, Pakhribas, Dhankuta, Nepal. The total 60 soil samples were collected randomly at a depth of 0-20 cm by using the soil sampling auger. For identification of soil sampling points A GPS device was used. The collected samples were analyzed for their texture, pH, OM, N, P₂O₅, K₂O, Ca, Mg, S, B, Fe, Zn, Cu and Mn status following standard methods in the laboratory of Soil Science Division, Khumaltar. The Arc-GIS 10.1 software was used for soil fertility maps preparation. The observed data revealed that soil was dark yellowish brown (10YR 4/4) and yellowish brown (10YR 5/6) in colour, and single grained, granular and sub-angular blocky in structure. The sand, silt and clay content were 56.61±0.97%, 27.62±0.56% and 15.77±0.58%, respectively and categorized as loam, sandy loam and sandy clay loam in texture. The soil was very acidic in pH (4.66±0.07) and very low in available sulphur (0.53±0.11mg/kg), available boron (0.24±0.07mg/kg). The organic matter (1.34±0.07%), total nitrogen (0.09±0.003mg/kg), available calcium (605.70±31.40mg/kg), available magnesium (55.96±4.67mg/kg) and available zinc (0.54±0.22mg/kg) were low in status. Similarly, available potassium (115.98±9.19 mg/kg) and available copper (1.13±0.09 mg/kg) were medium in status. Furthermore, available manganese (36.31±2.82mg/kg) was high, whereas available phosphorus (105.07±9.89 mg/kg) and available iron (55.80±8.89 mg/kg) were very high in status. The soil fertility management practice should be adopted based on the determined status in the field for the sustainable production of crops. The future research strategy should be built based on the soil fertility status of the research farm.
Źródło:
Polish Journal of Soil Science; 2019, 52, 1; 23-42
0079-2985
Pojawia się w:
Polish Journal of Soil Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and antimicrobial activity of 5-(2’-n-butyl-4’-chloro-1’-H-imidazol-5’-yl)-3-aryl-4,5-dihydro-{1-H/1-acetyl/1-phenyl}-pyrazoles
Autorzy:
Joshi, A. K.
Purohit, D. M.
Powiązania:
https://bibliotekanauki.pl/articles/1031465.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Acetyl Pyrazoles
Antimicrobial activity
Phenyl Pyrazoles
Simple Pyrazoles
Opis:
5-(2’-n-butyl-4’-chloro 1’-H-imidazol- 5’-yl)-3-aryl-4, 5-dihydro-1-H-pyrazoles. (2a-2j); 1-[5’-(2”-n-butyl-4”- chloro-1”-H-imidazol-5”-yl)-3’-Aryl-4’, 5’-dihydro-1’-H-pyrazol-1-yl]-ethanones. (3a-3j); 5-(2’-n-butyl-4’-chloro-1’-H-imidazol-5’-yl)-3-Aryl-1-phenyl-4, 5-dihydro-1-H-pyrazoles. (4a-4j) have been synthesized. The products have been assayed for their antimicrobial activity against Gram +ve bacteria and Gram –ve bacteria and antifungal activity. The products have been characterised by IR, 1HNMR, Mass Spectra and TLC.
Źródło:
World News of Natural Sciences; 2021, 35; 38-47
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
L$\text{}_{1}$ Absorption Edge of the 4f Heavy Rare-Earth Metals
Autorzy:
Shrivastava, B. D.
Joshi, S. K.
Powiązania:
https://bibliotekanauki.pl/articles/1920520.pdf
Data publikacji:
1992-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.70.Dm
Opis:
The wavelengths of the L$\text{}_{1}$ absorption edges of the 4f heavy rare-earth metals ($\text{}^{65}$Tb to $\text{}^{71}$Lu) have been measured using a 40 cm curved crystal spectrograph of the Cauchois-type in the transmission mode. The measured values have been found to fit nicely in the modified Moseley diagrams. The absence of the white lines at the L$\text{}_{1}$ edges of the rare earths in metallic form and its occurrence in their compounds has been discussed.
Źródło:
Acta Physica Polonica A; 1992, 81, 3; 385-392
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
IFRS innovation, governance practices and firm performance: A new empirical assessment of moderating effects across GCC region
Autorzy:
Alruwaili, Waleed S.
Ahmed, Abdullahi D.
Joshi, Mahesh
Powiązania:
https://bibliotekanauki.pl/articles/22398299.pdf
Data publikacji:
2023
Wydawca:
Instytut Badań Gospodarczych
Tematy:
IFRS innovation
governance practices
firm performance
Saudi listed firms
Gulf Cooperation Council countries (GCC)
International Financial Reporting Standards (IFRS)
Opis:
Research background: Despite the large volume of research which has been conducted, the association between corporate governance mechanisms and firm performance remains a controversial issue, particularly with the growth of accounting settings around the world. Purpose of the article: This study assesses the moderating role of International Financial Reporting Standards (IFRS) on the association between corporate governance mechanisms and firm performance in selected Gulf Cooperation Council (GCC) country-listed firms, namely Saudi Arabia, Qatar, Bahrain, and United Arab Emirates over the period 2016–2019. Methods: Importantly, we examine the direct and indirect influences of royal family members on long-term firm performance. We attempt to answer our research questions using robust estimation methods such as pooled OLS, fixed effect, random effect and first difference models. Findings & value added: The outcome reveals a significant and positive impact of firm size and board size on the firm performance in the pooled sample, while there is a significantly negative influence of financial leverage on firm performance. The impact of RFP on FP is seen to be negative and significant while the interaction term is found to be positive and statistically significant. This notably refers to the possibility that royal family directors could play an essential role in influencing the executive management team to fully react to provide extensive voluntary disclosure and comply with IFRS adoption. Our simultaneous quantile regression analysis displays the influence of corporate governance mechanisms on firm performance in various stages. While we observe that IFRS transformation has improved information comparability, policy makes in GCC countries should continue to foster conducive environment to support innovative business practices that help diversify their economies.
Źródło:
Equilibrium. Quarterly Journal of Economics and Economic Policy; 2023, 18, 3; 615-659
1689-765X
2353-3293
Pojawia się w:
Equilibrium. Quarterly Journal of Economics and Economic Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Greener, facile and ultrasound assisted synthesis of 1,2,3-triazole via CuAAC of 2-(azidomethyl)-1H-benzo[d]imidazole and alkynes and their evaluation of antimicrobial activity
Autorzy:
Kapupara, Vimalkumar H.
Kalavadiya, Prakash L.
Gojiya, Dinesh G.
Parmar, Nilesh D.
Joshi, Hitendra S.
Powiązania:
https://bibliotekanauki.pl/articles/1075696.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
1
1H-benzo[d]imidazole azide
2
3-triazol-1-yl)methyl)-1H-benzo[d]imidazole
3-triazole via CuAAC
4-disubstituted 1H-1
alkynes
antimicrobial
copper(I) catalyst
Opis:
An expeditious room temperature protocol for the synthesis of 1,4-disubstituted 1H-1,2,3-triazol-1-yl)methyl)-1H-benzo[d]imidazole from [3+2] cyclization by using 1H-benzo[d]imidazole azide and various substituted terminal alkynes and copper(I) as a catalyst. This synthetic approach has been various prominent features such as fewer reaction steps, Good Yield, simple reaction condition and no any further purification required. Characterizations of all the synthesized compounds were done by various spectroscopic techniques like FT-IR, NMR and Mass spectrometry. All the synthesized targeted compounds were screened and evaluated for their antimicrobial activities.
Źródło:
World Scientific News; 2019, 119; 139-167
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 12

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