Evaluation of 2,2-diphenyl-1-picrylhydrazyl, secondary metabolite contents and antimicrobial efficacy of Blastonia garcinii(Burm.f.) Cogn.

This study emphasizes screening of DPPH, secondary metabolites and antimicrobial activity of Blastonia garciniian annual wine with a slender stem, climbing using tendrils, leaves are ovate and flowers are unisexual.  The leaves were collected, shade dried and powdered. The powdered sample was extracted by using soxhlet apparatus with petroleum ether and ethanol. The antioxidant activity of the plant extracts was measured using spectrophotometry by their ability to scavenge free radicals such as DPPH (2,2-diphenyl-1-picrylhydrazyl), hydrogen peroxide and also quantification of total flavonoids, total phenol content and antimicrobial activity of plant extracts. The significant result observed in when compared Petroleum ether and Ethanol extract, the DPPH and H2O 2 activities and the total phenol and total flavonoïd content and Antibacterial and antifungal activity were shown significant activity in ethanolic extract of B. garcinii.  

Mechanical Properties of Partial Replacement of Cement by adding Neem Gum/Accaacia Gum a Naturally Available Polymeric Fillers

The use of natural polymeric fillers in concrete has been gaining popularity in recent years due to their environmental and economic benefits. Neem gum and acacia gum are two such fillers that have been shown to improve the mechanical properties of concrete. In this experimental study, the effects of partial replacement of cement with neem gum and acacia gum on the compressive strength, splitting tensile strength, flexural strength, elastic modulus, and water absorption of concrete were investigated. The results showed that the addition of neem gum and acacia gum to concrete can improve its mechanical properties. The compressive strength of concrete increased by up to 10% when 0.5% of neem gum or acacia gum was added. The splitting tensile strength and flexural strength of concrete also increased by up to 15% and 10%, respectively, when 0.5% of neem gum or acacia gum was added. The improvement in the mechanical properties of concrete with the addition of neem gum and acacia gum is attributed to the following factors. The significantly higher than the compressive strength of the control mix withacacia gum 23.5 MPa, but for 1 weight % of neem gum is about 34.5 MPa. The Split tensile strength was also significantly higher than the split tensile strength of the control mix without acacia gum 3.1 MPa and the best result seen in the 1.5 weight percentage of acacia gum with 3.8 MPa. The higher flexural strength of the control mix with acacia gum is about 5.1 MPa, for neem gum 5.9 MPa and elastic modulus 24 GPa for 1 % of acacia, 38GPa for neem gum was noted. Significantly lower than the water absorption rate of the control mix with acacia gum 2.8% and with neem gum for 1.5 % of neem gum is about 1.4 percentages. The use of these fillers can improve the mechanical properties of concrete and reduce the environmental impact of concrete production

Annular elastolytic giant cell granuloma in association with Hashimoto's thyroiditis

Annular elastolytic giant cell granuloma (AEGCG) is a rare granulomatous skin disease characterized clinically by annular plaques with elevated borders and atrophic centers found mainly on sun-exposed skin and histologically by diffuse granulomatous infiltrates composed of multinucleated giant cells, histiocytes and lymphocytes in the dermis along with phagocytosis of elastic fibers by multinucleated giant cells. We report a case of AEGCG in a 50-year-old woman and is highlighted for the classical clinical and histological findings of the disease and its rare co-existence with Hashimoto's thyroiditis

Polarization of a top quark produced in the decay of a gluino or a stop in an arbitrary frame

We show that for values of masses of the gluino and stop favored by ``naturalness,'' the top quark produced in the decay (g) over tilde -> t (t) over tilde (1) can be polarized. This polarization depends only on the mixing in the stop sector as opposed to that of the top quark produced in decays (t) over tilde -> t (chi) over tilde (0)(i), (b) over tilde -> t (chi) over tilde (-)(i). In both the cases the polarization constructed through the distribution of top decay products in the laboratory frame, is different from the top polarization predicted in the rest frame of the mother particle (gluino/stop), which depends on the SUSY parameters as mentioned above. Here, we propose an estimator of lab frame top quark polarization, starting from the rest frame polarization of the top. This estimator depends only on the magnitude of velocity of the mother particle and assumes a narrow width for the mother particle. With a Monte-Carlo simulation of the full production and decay chain we establish our estimator to be accurate within 1% and the computation is a much simpler exercise compared to calculating from first principle. We also study effects of finite width of the mother particle using a suitably modified estimator and find it most useful for stop-quarks decays

Computer-aided diagnostic system for breast cancer detection based on optimized segmentation scheme and supervised algorithm

Breast cancer is a serious threat to the womankind and it leads the susceptible kinds of cancer for women. The mortality rates due to breast cancer increases every single year and the World Health Organization (WHO) aims to reduce the occurrence of breast cancer by at least 2.5% per year. The occurrence of breast cancer can be minimized only when periodical screening is carried out. Mammography is one of the effective screening procedure, which can effectively locate earlier signs of breast cancer. As an aid, this work aims to present a system for the breast cancer detection and classification. This work is segregated into four phases and all these phases aim to enhance the classification performance. The efficiency of the proposed work is evaluated against the state-of-the-art approaches and the proposed contribution to the medical science. The computer-aided diagnostic system (CADS) proves 98.2% accuracy, with minimal false positive and false negative rates in a reasonable period of time

Eco-friendly sugarcane biochar filler for enhanced mechanical properties in S-glass/polyester hybrid composites

In the pursuit of sustainable materials for composite fabrication, this study investigates the utilization of eco-friendly sugarcane biochar as a filler to enhance the mechanical properties of S-Glass/polyester hybrid composites. The incorporation of sugarcane biochar aims to mitigate environmental concerns associated with conventional fillers while simultaneously improving composite performance. Two techniques were utilized in the fabrication composites such as hand layup and vacuum bagging methods. Composite was fabricated with varying weight percentage of sugarcane biochar concentrations such as 5, 10, and 15 wt%. The mechanical behaviour of the composites was assessed through tensile, flexural, impact, and hardness tests. It is noted that the composites that comprised sugarcane biochar at concentrations as high as 10 wt% demonstrated the highest mechanical strength and performance. The maximum tensile strength of 119 MPa, flexural strength of 154 MPa and impact strength of 45 MPa was noted on the 10 wt% biochar composite. The findings underscore the effectiveness of sugarcane biochar as a filler in improving the mechanical behaviour of S-Glass/polyester hybrid composites. The successful integration of sugarcane biochar not only contributes to the development of sustainable composite materials but also highlights its potential to achieve superior mechanical performance