Diffraction of light by interfering liquid surface waves

Interfering liquid surface waves are generated by electrically driven vertical oscillations of two or more equispaced pins immersed in a liquid (water). The corresponding intensity distribution, resulting from diffraction of monochromatic light by the reflection phase grating formed on the liquid surface, is calculated theoretically and found to tally with experiments. The curious features of the diffraction pattern and its relation to the interference of waves on the liquid surface are used to measure the amplitude and wavelength of the resultant surface wave along the line joining the two sources of oscillation. Finally, a sample diffraction pattern obtained by optically probing surface regions where interference produces a lattice--like structure is demonstrated and qualitatively explained.Comment: 9 pages, 4 figure

INTERRELATIONSHIP OF STRESS, BODY IMAGE, NEGATIVE MOOD STATE AND SUSCEPTIBILITY TO ABNORMAL EATING BEHAVIOUR AMONG GAME SPECIFIC FEMALE ATHLETES: AN EXPLORATORY APPROACH

Purpose: To achieve and maintain a perfect body shape athlete often follows restrictive dieting which ultimately leads them to eating disorders. The purpose of the study was to identify whether there is an interrelationship of abnormal eating behaviours, perceived stress, negative mood state and self-perception of body image among athletic population and another was to observe the consequences of negative psychological well-being and game specificity on food choices and frequency. A secondary purpose of this study was to identify the “at risk-eating disorder” participants who were involved in different sports category. Methods: One thirty eight healthy young female participants matched for BMI were selected by purposive sampling. Subjects were divided into 4 categories i.e. aesthetic games group, endurance groups, strength group and healthy controls. Structured questionnaires were used for data collection during their non-competitive session. ANOVA followed by Scheffe’s test was applied to compare different parameters among the groups. Regression model examined the associations among disordered eating behaviours, stress, body shape concern, emotional eating, total mood disturbance and food choice. Findings: Result revealed disordered eating behaviour was significantly prominent in control and aesthetic game group than other two groups. Control group obtained the highest score in stress and emotional eating while aesthetic game group secured the highest score in body shape concern. Mood disturbance was more prevalent in strength group. Body mass index, body shape concern, emotional eating and total mood disturbance were identified as strongest predictor of EAT-26 scores. The result revealed that controls and aesthetic game group exhibit more abnormal eating behaviours than others. Value: This result will help to indicate abnormal eating behaviour and its relation with psychological well-being among female athletic population. Interventions programmes should be designed to cope up with competitive pressure to avoid abnormal eating behaviour.  Article visualizations

INTERRELATIONSHIP OF STRESS, BODY IMAGE, NEGATIVE MOOD STATE AND SUSCEPTIBILITY TO ABNORMAL EATING BEHAVIOUR AMONG GAME SPECIFIC FEMALE ATHLETES: AN EXPLORATORY APPROACH

Purpose: To achieve and maintain a perfect body shape athlete often follows restrictive dieting which ultimately leads them to eating disorders. The purpose of the study was to identify whether there is an interrelationship of abnormal eating behaviours, perceived stress, negative mood state and self-perception of body image among athletic population and another was to observe the consequences of negative psychological well-being and game specificity on food choices and frequency. A secondary purpose of this study was to identify the “at risk-eating disorder” participants who were involved in different sports category. Methods: One thirty eight healthy young female participants matched for BMI were selected by purposive sampling. Subjects were divided into 4 categories i.e. aesthetic games group, endurance groups, strength group and healthy controls. Structured questionnaires were used for data collection during their non-competitive session. ANOVA followed by Scheffe’s test was applied to compare different parameters among the groups. Regression model examined the associations among disordered eating behaviours, stress, body shape concern, emotional eating, total mood disturbance and food choice. Findings: Result revealed disordered eating behaviour was significantly prominent in control and aesthetic game group than other two groups. Control group obtained the highest score in stress and emotional eating while aesthetic game group secured the highest score in body shape concern. Mood disturbance was more prevalent in strength group. Body mass index, body shape concern, emotional eating and total mood disturbance were identified as strongest predictor of EAT-26 scores. The result revealed that controls and aesthetic game group exhibit more abnormal eating behaviours than others. Value: This result will help to indicate abnormal eating behaviour and its relation with psychological well-being among female athletic population. Interventions programmes should be designed to cope up with competitive pressure to avoid abnormal eating behaviour.  Article visualizations

Direct calculation of ground-state electronic densities and properties of noble gas atoms through a single time-dependent hydrodynamical equation

Ground-state electronic densities and properties of noble gas atoms (He, Ne, Ar, Kr and Xe) have been calculated through a single time-dependent quantum fluid dynamical equation of motion. The equation has been transformed through imaginary time into a diffusion equation which is then numerically solved in order to reach a global minimum. The present results compare favourably with other available values

FORMULATION AND EVALUATION OF SUSTAINED RELEASE BILAYER TABLETS OF PROPRANOLOL HYDROCHLORIDE

Objective: The present study was to formulate and evaluate of sustained release bilayer tablets of anti-hypertensive drugs propranolol hydrochloride.Methods: The tablets were prepared by direct compression method by using superdisintegrants Sodium Starch Glycolate (SSG) for immediate release layer and mucoadhesive materials such as Hydroxy Propyl Methyl Cellulose (HPMC-K4M) and Carbopol 934 P for sustained release layer which could release the drug up to 12 hours in predetermined rate. Poly vinyl Pyrrolidone (PVP) K-30 was used as binder. The blends were evaluated for physicochemical parameter such as bulk density, tap density, compressibility index and angle of repose. The tablets were evaluated for post compression parameter such as hardness, thickness, diameter, weight variation, drug content uniformity and friability. In vitro drug release studies were performed by using USP type II apparatus (paddle method). The FTIR study revealed that there was no chemical interaction between drug and excipients.Results: The formulation ME5 containing HPMC-K4M and Carbopol 934 P in the ratio of 3:1 gave an initial burst effect and followed by sustained release of drug without disintegration up to 12 hours.Conclusion: The optimized formulation ME5 showed the best drug release profile up to 12 hours and fulfilled the many requirements reduced dosing frequency, increase the bioavailability and provide better patient compliance.Â

Single cell fertilizer (SCF): Evidence to prove that bio-molecules are potent nutrient for plant growth

Fertilizers of various kinds are used for the cultivation of crop plants for hyper production of plant based food materials. The study used bio-molecules made in a bacterial cell. The experimental results showed tremendous effect on plant growth. These cellular molecules were made by treating the bacterial cells with lysozyme and protenase K. The wet/weight was increased in multiple folds compared to that of control sets. The fold of increase was 4.79 for rice, 2.77 for wheat, 1.89 for gram and 1.89 for pea when bacterial cellular molecules were used as fertilizer

Endophytic microbes and their diverse beneficial aspects in various sectors: A critical insight

Endophytes are ubiquitous and grow in plant tissues without causing any harmful effects to the host. They include different groups of microorganisms such as bacteria, fungi and actinomycetes. Along with the host plants, the existing endophytes also co-evolve after a long relationship between them. Host plant-endophyte interaction is similar to that of plant growth promoting microbes as they induce the growth of the host plant and increase resilience against biotic and abiotic stresses. The interaction of plant endophytes at the molecular level and the effect of endophytes on host gene expression is a new field of study and are still rarely explored. Endophytes act as a promising resource of many invaluable bioactive secondary metabolites. Some of these bioactive compounds include alkaloids, polyphenols, sterols, xanthones, terpenoids, flavones, coumarins, polyketides, quinones, saponins, tannins, benzopyrones, dibenzofurans. These secondary metabolites are beneficial for agriculture, industrial and pharmacological purposes. As endophytes have beneficial effects in sustainable agriculture, plant disease management, pharmaceuticals, industry and environmental management in an eco-friendly way, thus improving the strategy of application of endophytes as biological agents in every aspect of our life is a very challenging field of research. Our aim in this present review is to focus on plant-endophyte interactions and their various dimensions in order to address some future possibilities for expediting the bioactive secondary metabolite production

Genetic Aspects of Implantation Failure

Implantation failure refers to the inability of a fertilized egg, or embryo, to successfully implant itself in the endometrial lining of the uterus, leading to pregnancy loss. The repeated failure of good quality embryo implantation is referred to as recurrent implantation failure (RIF). This can occur for a variety of reasons, including chromosomal abnormalities in the embryo, problems with the endometrium, or issues with the immune system. Factors such as advanced maternal age, obesity, smoking, and certain medical conditions can also increase the risk of implantation failure. While treatment such as in vitro fertilization (IVF) can help to improve the chances of successful implantation, there is currently no definite way to prevent or treat implantation failure.  Patients and healthcare professionals have substantial diagnostic and treatment hurdles as a result of many etiological factors and lack of knowledge about RIF. A number of studies have indicated a correlation between irregular hormone levels, disruptions in angiogenic and immunomodulatory factors, specific genetic polymorphisms, and the prevalence of RIF. Nonetheless, the precise and intricate underlying pathophysiology of RIF remains elusive.  However, many studies are ongoing in this field to understand the underlying causes and to find new ways to help couples achieve pregnancy. This review article extensively explores diverse molecular and genetic facets aimed at enhancing the diagnosis and management of implantation failure