41 research outputs found
Exploring the Infringing Behaviours of Students inside a University Classroom:
The infringing behaviour of students is defined as a set of undesired and objectionable behaviour that hampers the flow of teaching-learning activities inside the classroom. The student's problematic behaviour is something related to the student's disposition and temperament. This research intends to investigate how university teachers perceive student’s misbehaviour and throws light on the underlying causes behind these undesired behavioural traits. This research is based on a descriptive survey. In this research, 50 teachers teaching undergraduate students in various departments of King Khalid University have participated. The authors have collected the data manually by filling two sets of a questionnaire. The result of the study shows: what are some common inappropriate behaviour that a teacher encounters, and why a student displays various types of misbehaviours? The findings of this study will help to develop the establishment of a well-managed classroom
Bacillus amyloliquefaciens induces production of a novel blennolide K in coculture of Setophoma terrestris
The discovery of known bioactive chemical leads from microbial monocultures hinders the efficiency of drug discovery programmes. Therefore, in recent years, the use of fungal–bacterial coculture experiments has gained considerable attention due to their ability to generate new bioactive leads. In this work, fungal strain Setophoma terrestris was cocultured with Bacillus amyloliquifaciens to discover novel bioactive compounds
Cell cycle inhibitory activity of <i style="mso-bidi-font-style:normal">Piper longum</i> against A549 cell line and its protective effect against metal-induced toxicity in rats
358-364Anticancer potential of <i style="mso-bidi-font-style:
normal">Piper longum fruit against human cancer cell lines (DU-145 prostate, A549
lung, THP-1 leukemia, IGR-OVI-1 ovary and MCF-7 breast)
as well as its in vitro and in vivo biochemical efficacy in AlCl3-induced
hepatotoxicity were evaluated in the rats. Dried samples were extracted with
several solvents using soxhlet apparatus. Flavonoid content in chloroform,
benzene, ethyl alcohol and aqueous extracts of fruit was 19, 14, 12 and 11 μg quercetin equivalent/mg
of sample, respectively. Hexane extracts exhibited 90-92%
cytotoxicity against most of the test cell lines (A549, THP-1, IGR-OVI-1
and MCF-7),
while benzene extract displayed 84-87% cytotoxicity against MCF-7, IGR-OV-1 and
THP-1 cell lines. Among extracts, hexane, benzene and acetone extracts
demonstrated considerable cytotoxicity
(91-95%) against A549 (lung cancer) cell line in Sulforhodamine B dye<b style="mso-bidi-font-weight:
normal"> (SRB)
assay. Cell cycle analysis revealed that hexane, benzene and acetone extracts
produced 41, 63 and 43% sub-G1 DNA fraction, demonstrating cell cycle
inhibitory potential of these extracts against A549 cell line. Chloroform,
ethyl alcohol and aqueous extracts displayed 71, 64 and 65% membrane protective
activity, respectively in lipid
peroxidation inhibition assay. P. longum fruit
extracts also ameliorated AlCl3-induced hepatotoxicity, as indicated
by alterations observed in serum enzymes ALP, SGOT and SGPT activity, as well as creatinine
and bilirubin contents. In conclusion, study established the cytotoxic and
hepatoprotective activity in
P. longum extracts.
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Biometric Assessment of Cyprinus carpio var. Communis from Anchar Lake of Kashmir Valley
Morphometric analysis have proven to be a useful tool for studying fish species, population and races. It is a basic fundamental tool for attaining information on development of organisms, systematics, growth, variation and morphology. The present study was carried out in Anchar lake of Srinagar Kashmir to analyze morphometric measurements of Cyprinus carpio var. communis. About 120 specimens of Cyprinus carpio var. communis was collected randomly from different zones of the water body. The morphometric characters were classified into genetically controlled (narrow range), intermediate (moderate range) and environmentally (vast range) controlled characters. In percentage of total length out of fourteen 14 morphometric characters 5 were genetically controlled, 2 characters were intermediate and 7 characters were environmentally controlled. The relationship between the different morphometric characters was found to be linear with most of them being highly significant (p<0.01). The study concluded that the environmentally controlled characters were maximum, which indicates that these characters are less stable in nature