Fruits are indispensable in today’s world owing their tremendous health benefits. Cucumber and watermelon are commonly consumed fruits worldwide. In this study, antioxidant potential of crude methanol extract of different concentrations of cucumber and watermelon were screened for antioxidant activity using total phenolic content, ferric reducing power (FRAP), ferric thiocyanate (FTC) tests and free radical scavenging (DPPH) assay. They are good source of calcium, magnesium and copper with appreciable amounts of vitamin C (143.360 ± 101.400 mg/100 g) for cucumber and vitamin A (90.980 ± 22.860 mg/100g; 29.475 ± 0.575 mg/100 g) for both watermelon and cucumber respectively. It was found that polyphenolics compounds were maximum in watermelon (87.04 ± 0.55 mg/g GAE in concentration 100 mg/mL). The extracts showed a potent DPPH free radical scavenging activity; cucumber had maximum percentage inhibition at 20 µg/mL concentration (29.2%) compared to watermelon at 40 µg/mL concentration (13.5%). These fruits also exhibited fairly good antioxidant activity with in both FRAP (0.517 mg/100 g; 0.317 mg/100 g) and FTC (17.2%; 31%) methods for watermelon and cucumber respectively.
In the teaching and learning process, teachers are required to be able to carry out their role to the fullest as a motivator and initiator in an effort to maintain and at the same time increase the enthusiasm of students to learn. Especially in the Covid-19 pandemic situation which requires educational institutions to carry out online learning. This study aims to discuss the teacher's role as a motivator and the teacher's role as an initiator in improving the quality of student learning in online learning at Madrasah Ibtidaiyah Ma'arif Condro Jember. This research uses qualitative research methods and the type of research is a case study. Data collection techniques using observation, interviews and documentation. The validity of the data using source triangulation and technical triangulation. Meanwhile, data analysis uses data condensation, data presentation and verification/conclusion. The results of this study indicate: 1) The teacher's role as a motivator in improving the quality of learning in online learning, namely: providing opportunities for students to play an active role in learning, providing reinforcement, praise or verbal appreciation, teachers listening to students' concerns and wishes to bond. good relationship between teachers and students. 2) The role of the teacher as an initiator in improving the quality of learning in online learning, namely: utilizing information and communication technology such as Whatsapp, Facebook, Google Meet and Google Form. Dalam proses belajar mengajar, guru dituntut untuk mampu melaksanakan perannya secara maksimal menjadi motivator dan inisiator dalam upaya menjaga dan sekaligus meningkatkan semangat belajar peserta didik. Terlebih dalam situasi pandemi Covid-19 yang menuntut lembaga pendidikan untuk melaksanakan pembelajaran secara Daring. Penelitian ini bertujuan untuk membahas tentang peran guru sebagai motivator dan peran guru sebagai inisiator dalam meningkatan kualitas belajar peserta didik pada pembelajaran daring di Madrasah Ibtidaiyah Ma’arif Condro Jember. Penelitian ini menggunakan metode penelitian kualitatif dan jenis penelitiannya adalah studi kasus. Teknik pengumpulan data menggunakan observasi, wawancara dan dokumentasi. Keabsahan data menggunakan triangulasi sumber dan triangulasi teknik. Sedangkan analisis data menggunakan kondensasi data, penyajian data dan verifikasi/kesimpulan. Hasil penelitian ini menunjukkan: 1) Peran guru sebagai motivator dalam meningkatkan kualitas belajar pada pembelajaran daring yaitu: memberikan kesempatan kepada peserta didik untuk berperan aktif dalam pembelajaran, memberikan penguatan, pujian atau apresiasi secara verbal, guru mendengarkan keresahan dan keinginan peserta didik agar terjalin ikatan yang baik antara guru dan peserta didik. 2) Peran guru sebagai inisiator dalam meningkatkan kualitas belajar pada pembelajaran daring yaitu: memanfaatkan teknologi informasi dan komunikasi seperti Whatsapp, Facebook, Google Meet dan Google Form.
Garcinia cambogia, commonly known as Asam Gelugur, has entrenched itself as a traditional herbal medicine, renowned for its applications in treating obesity and its integration into global nutraceutical formulations. The bioactive compounds within, particularly hydroxy citric acid, mediate various effects. This study aims to assess the in vitro cytotoxicity of Taxol, a cytotoxic drug used as a control, and the aqueous extract from Garcinia cambogia against the Vero cell line - a kidney-like cell. Cytotoxicity was evaluated using the 3-(4,5-dimetyl-2-2thiazolyl)-2, 5-diphenyl-2H-tetrazolium bromide (MTT) assay. The assay relies on mitochondrial succinate dehydrogenase's potential to reduce MTT, providing a colorimetric indication of cell viability. The results revealed an IC50 value exceeding 500 µg/mL for the aqueous extract from Garcinia cambogia significantly higher than Taxol's 0.0581 µg/mL. This higher IC50 value implies lower toxicity, positioning the Garcinia cambogia extract as a safe component in nutraceuticals and herbal supplements. The aqueous extract of Garcinia cambogia demonstrates low cytotoxicity, reinforcing its safety profile for use in nutraceuticals, which contributes valuable insights into the safety considerations of incorporating Garcinia cambogia into herbal supplements.
Mediterranean journal of pharmacy and pharmaceutical sciences
The incorporation of lomustine, a hydrophobic anticancer drug into PLGA nanoparticles by interfacial deposition method was optimized. Based on the optimal parameters, it was found that lomustine-PLGA nanoparticles with acceptable properties could be obtained. Optimization of formulation variables to control the size and drug entrapment efficiency of the prepared nanoparticles seems to be based on the same scientific principles as drug-loaded nanoparticles prepared by nanoprecipitation, solvent evaporation method. The process was the most important factor to control the particle size, while both the drug-polymer interaction and the partition of drug in organic and aqueous phases were the crucial factors to govern the drug entrapment efficiency. PLGA concentration at lower level (100 mg), 1:5 organic phase: aqueous ratio, 1%w/v PVA concentration, 3%w/v pluronic F68 achieved smaller particle size. Additionally, L:G ratio of PLGA 75:25, lower volume of organic solvent (1:10 organic phase: aqueous phase), higher initial drug content (10mg) enhanced the drug entrapment efficiency and maintained lomustine concentration in blood for an extended time period, elevated lomustine concentration in lungs and slowed the elimination of lomustine. The biodistribution profiles of prepared nanoparticles in albino mice showed higher plasma drug concentration for longer period of time, elevated drug concentration in lungs and slow elimination from kidney. No toxic effects of prepared nanoparticles were observed in histopathological examination of lungs and kidney. The systematic investigation reported here promises the development of PLGA nanoparticles loaded with lomustine when tested in Lung Cancer cell line L132 and toxicological/ histopathological studies in albino mice.
Learning is a conscious effort made by individuals to acquire various kinds of abilities (competencies), skills (skills), and attitudes (attitudes) through a series of learning processes that will ultimately result in behavioral changes in the individual. The learning process in schools tends to emphasize the achievement of changes in cognitive (intellectual) aspects which are carried out through various forms of approaches, strategies, and certain learning models. Learning systems that specifically develop affective abilities have received less attention, affective abilities are only used as a nurturing effect. This study aims to (1) find out whether online learning is able to bring out the affective abilities of prospective study program teachers (2) analyze the affective abilities of prospective teachers in online learning. The data used in this study is qualitative data. The technique used is a questionnaire. This questionnaire was given to respondents, namely students of PGSD teacher candidates at Muhammadiyah University of Pringsewu. The results of the study indicate that affective abilities can appear in online learning as evidenced by the results of the questionnaire that has been given to respondents. The indicators of affective ability in this study include attitudes, interests, self-concept, values, and morals, all of which are in the good range. This means that the results of students' affective abilities can be said to be valid or appear in online learning
The present study was designed to investigate the in-vitro thrombolytic activity of various extracts of seeds of Salvia hispanica by Clot lysis method. In this study, Streptokinase was used as a positive control and the human blood was taken as test sample. The mean % of clot lysis for streptokinase was found to be 66.8%. Similarly the methanolic, ethanolic, aqueous and acetonic extracts of salvia hispanica exerted 48.5%, 35.8%, 33.3%, 27.7% lysis of the blood clot in thrombolytic activity test respectively. From our findings it was observed that all the extracts of Salvia hispanica revealed remarkable thrombolytic activity
The establishment of energy-saving and natural resource-saving systems is an important issue and relevant research and development should be accomplished without delay. Making structures lighter is one way to save energy. The study of light metals such as aluminium and magnesium alloys has received much attention. Aluminium alloys are especially attractive because of superior recyclability and workability. However, present structures made of stainless steels cannot be entirely replaced with aluminium alloy structures, taking into account strength, weldability and economics, although it is possible to replace part of a structure with aluminium alloy components. In this case, it is necessary to joint SS 430F steel with Aluminium 6061. Few sound joints have been obtained, owing to the formation of a large amount of brittle intermetallic compounds which were using fusion welding. In the recent years, welding of dissimilar metals by conventional welding techniques has become difficult. The flux used for the welding will create lot of heat which reduces the strength of the welded joints. In order to overcome this, friction welding is more effective in joining dissimilar metals when compared with fusion welding, since it is a solid-state process. Heat is generated in friction welding by conversion of mechanical energy into thermal energy in the interface of work pieces during rotation under pressure. Various ferrous and non-ferrous alloys having circular or non-circular across sections and that have different thermal and mechanical properties which can be joined by the friction welding. Conventional structures made of steel have been replaced by lighter materials, capable of providing high mechanical strength, lower volume of material and good corrosion resistance components such as those used in industries (shipbuilding, light and heavy automotive, electrical, chemical, civil, space and nuclear industry).
The purpose of this research was to examine the mediating effect of empowerment on the linkage between Total Quality Management (TQM) and service recovery performance in the hotel industry. Although much has been written about TQM, empowerment and service recovery performance, but the role of empowerment as a mediator in the relationship between TQM and service recovery performance has remained a relatively unexplored research area. A 93-item questionnaire is designed to measure TQM, empowerment and service recovery amongst employees in five-star hotels in Jordan, and 254 usable questionnaires were used in this study. Principal components analysis determined the factor structure and regression analysis determined the relationships between the study’s variables. The results revealed that the TQM implementations have positive effects on empowerment and service recovery performance. Moreover, the study found the full mediating effect of empowerment in the relationship between TQM and service recovery performance. Implications, limitations and future research are discussed at the end. This study proposes model of influence of TQM in service recovery performance, whereby empowerment fully mediates this relationship.
The space-time dynamics of chlorophyll a concentration and seawater excess viscosity has been investigated in the hydrographically contrasting inshore and offshore water masses of the eastern English Channel. This was done during the phytoplankton spring bloom dominated by Phaeocystis globosa before and after the very large-scale formation of foam induced by an increase in wind-driven turbulence and the related wave breakings. The results suggest that the dynamics of chlorophyll a concentration and seawater excess viscosity are differentially controlled by the formation of foam through the intensity of the spring bloom and wind-generated turbulence.
The Cellular Manufacturing is adopted in batch type manufacturing industries nowadays for their production with increased productivity, less cost and time with effective control. The proposed optimization model is used to determine the cost of machine cells, i.e., machine duplication, part subcontract, inter intra cellular movements cost and cost of production associated with machine cell, such as machine reconfiguration and part inventory considering machine flexibility for various time periods. Initially, mathematical model is proposed to calculate machine cell cost with and without considering machine flexibility and then another lpp integer model is proposed to calculate the machine cell production and associated cost for the changes in time period, part type and volume considering machine flexibility. The manufacturing data in the incidence matrix and machine cell, part family data in the block diagonal form are given as input to the optimization programming language Cplex and the output are given for the two mathematical models. The data related to machine duplication, part subcontract, inter intra cellular movement; machine reconfiguration and part inventory are given. Two dimensional shop floor layouts are presented in rectilinear coordinates for all the problems for easy analysis of material movement length and shop floor area
The formation of social sciences in general, and sociology in particular, often includes foundational courses such as Introduction to Sociology as part of its curriculum. Many of these courses traditionally place the teacher at the center of teaching, with learners acting as passive recipients of knowledge. This approach limits learners' initiative in seeking knowledge and expressing their own perspectives on social issues, thus excluding them from the knowledge production process. This contradicts modern educational principles that emphasize learner participation in the educational process. Therefore, adopting a constructivist perspective of teaching necessitates the use of new teaching methods, with the Photovoice method being one of the essential tools due to its emphasis on participatory learning. Participatory learning involves students actively engaging with and redefining the knowledge presented in the classroom, rather than passively receiving it. This paper describes our experience using the Photovoice method in the Introduction to Sociology course at Ho Chi Minh City Open University, Vietnam, during the first semester of the 2023-2024 school year. Additionally, the paper presents survey results reflecting students' opinions on the Photovoice method after completing the course. The survey data indicates that Photovoice is an effective pedagogical tool.
Pod sucking bugs are the key impediments for the low productivity in India. Nymphs and adults of tur pod bug, Clavigralla gibbose (Spinola) suck the cell sap from the pods and cause loss of the grain. Because of its high fecundity and wide host adaptability, it is necessary to check its damage potential. For this purpose, an experiment on bioefficacy of insecticides against this insect was conducted in the laboratory-cum-field conditions on cultivar “Paras” during kharif season 2010-11, 2011-12 and 2012-13. Eight insecticides viz., endosulfan 35EC, monocrotophos 36SL, chlorpyriphos 20EC, quinalphos 25EC, triazophos 40EC, decamethrin 2.8EC, fenvalerate 20EC and cypermethrin 25EC were selected based on their LC50 values against this insect. Among the tested insecticides, cypermethrin proved most toxic (63.94 times) against adults of C. gibbosa followed by decamethrin. Quick knock down effect of decamethrin and fenvalerate was recorded in the field conditions. Therefore, the combinations of decamethrin and quinalphos with DDVP (76 EC) were also tested under field conditions. Cypermethrin, decamethrin plus DDVP, decamethrin and monocrotophos were found effective in managing the C. gibbose population upto 10 days after application. None of the insecticides could manage the bug population below ETL after 14 days of their application. Application of cypermethrin @ 188 mL ha-1 recorded the highest grain yield, highest net monetary returns and highest incremental cost benefit ratio, followed by decamethrin, fenvalerate and monocrotophos. Either of dimethoate or oxydemeton methyl could also manage the bug population
Bacteria that colonize plant roots and enhance the plant growth are denoted as Plant Growth Promoting Rhizobacteria (PGPR). The objective of this study is to isolate and identify Oryza sativa indigenous rhizobacteria and test for its, bio-control and various plant growth promoting traits under in-vitro condition. Nine rhizobacterial colonies isolated from healthy rice rhizosphere soil were screened for bio-control activity against rice pathogen Helminthosporium oryzae (rice brown spot) and Rhizoctonia solani (sheath blight) by performing dual culture method. The isolate B9 showed maximum antagonism against R. solani (73.7%) followed by isolate B2 (51.2%), isolate B1 (47.5%) and isolate B5 (42.5%) with different range of mycelial inhibition. Among nine rhizobacterial isolates tested, the growth of pathogenic fungi H. oryzae was only inhibited by the isolate B9 (20.5%). The isolates B1, B2, B5 and B9 exhibited maximum bio-control activities were further screened for different PGP traits, such as Phosphate (P) solubilization, Indole-3-Acetic Acid (IAA) production, Hydrogen Cyanide production (HCN) and extracellular enzyme production under in-vitro condition. The isolate B9 revealed the maximum P solubilization efficiency (99 SE), 45 μg/ml of IAA, HCN, amylase and cellulase production in maximum amount. The isolate B9 exhibited maximum bio-control, and PGP traits were identified by morphological and biochemical characterization and it was identified as Bacillus subtilis. In pot experiment, the rice seeds treated with B. subtilis exhibited significant shoot and root biomass when compared with un-inoculated rice and fungus-infected rice. This study highlighted the beneficial properties of native PGPR’s on growth promotion of rice and it could be formulated as bio-control as well as plant growth promoting agent, to reduce the application of chemical fertilizers in agricultural lands.
Abstract- The role of support vector machine in the evaluation of English teaching effect is very important, but there is a problem of inaccurate evaluation of results. The traditional English teaching mode cannot solve the accuracy and efficiency of the effect evaluation of students' English teaching and cannot meet the requirements of English teaching effect evaluation. Therefore, this paper proposes a neural network algorithm to innovate and optimize the analysis of support vector machines. Firstly, the relevant theories are used to construct a multi-index English teaching effect evaluation system with teachers and students as the main body, and the indicators are divided according to the data requirements of English teaching effect evaluation indicators to reduce the support vector machine in the interfering factor. Then, the neural network algorithm is used to solve the optimal solution of kernel function parameters and regularization parameters of the support vector machine, and the support vector machine scheme is formed, and the support vector machine results are carried out Comprehensive analysis. MATLAB simulation shows that the evaluation accuracy of the English teaching effect of the neural network algorithm and the support vector machine under certain evaluation criteria Optimal, short evaluation time.
Different derivatives of Cinnamaldehydes were prepared by Claisen-Schmidt condensation (by using Strong basic reagent). The prepared Cinnamaldehydes were treated with Hydrazine hydrate in presence of ZnO Nano-catalyst under microwave assisted solvent-free conditions to afford different substituted Pyrazoles. Green chemistry was employed. Comparisons of both microwave & conventional methods were studied & found that the first was more potent than the later. The synthesized compounds were characterized by FT-IR, 1HNMR & elemental analysis. All synthesized compounds were screened for in vitro test against EAC cell lines. Most compounds exhibited good inhibitor potency with IC50 values.
The COVID-19 pandemic and related lock downs have accelerated the need for online and remote teaching within university settings. However, due to the abrupt nature of the pandemic, many academic staff were not prepared for this forced transition. This study aimed to understand how the pandemic affected academics at a New Zealand university, with regards to their transition to emergency remote teaching. Specifically, it explores the challenges as well as benefits academics experienced during this transition. Recommendations for future online learning are also made. Academic staff (N 67) at a New Zealand University completed an anonymous online survey. Quantitative data were analyzed statistically using descriptive and inferential statistics, while qualitative data were analyzed thematically. Major challenges experienced included miscommunication from the university, concerns about student access to technology, finding a quiet space to work, lack of digital competence skills, too much screen-time, managing work hours, and work/ life balance. Benefits included enhanced flexibility, enhanced teacher creativity, increasing autonomy of learners, and reduced commute time. Looking forward, academic staff desired future teaching to include blended learning and virtual immersion. New strategies of working remotely are being explored to facilitate teaching and learning while catering to the preferences and skills of both educators and students. Our findings honor the considerable agility of academic staff who sought to sustain and enhance excellence in remote education. At an institutional level our findings point to the need for staff to be supported by their institutions as they further refine their work within new-found spaces
COVID-19 is associate communicable disease caused by severe acute respiratory syndrome coronavirus. It's currently a virulent disease unfold moving several countries globally. The aim of this study is to assess the knowledge and practices of COVID-19 among general public at the selected setting, Chennai. The main objective was to assess the knowledge and practice on COVID-19, correlate the knowledge with practice on COVID-19, and associate the knowledge and practice on COVID-19 with the demographic variables among the public. A Quantitative non-experimental analysis style was used to assess the knowledge and practice of COVID-19. Sixty individuals were chosen through the non-probability convenience sampling technique. The findings of the analysis disclosed that the majority (40%) of the samples had a high level of knowledge and 43.3% of them had a good practice, 33.3% of them had a moderate level of knowledge and 30% of them had moderate practice, whereas 26.7% of them had a low level of knowledge and 26.7% of them had poor practice on COVID 19. Keywords:- COVID-19, Knowledge, Practice, Pandemic, General Public.
The identification of isomorphism in epicyclic gear trains has been found a lot of attention by researchers for the last few years. Various methods have been suggested by different authors for the detection of isomorphism in planer kinematic chains and epicyclic gear trains (EGTs), but everyone has found some difficulties to address new issues. In this paper, a modified path matrix approach was presented in order to compare all the distinct geared kinematic mechanisms. A new method based on the matrix approach and corresponding train values is required to identify isomorphism among epicyclic gear trains and their mechanisms. The proposed method was examined on the basis of various examples from four-link, five-link, six links, and eight-link one-degree-of-freedom EGTs and six links two-degree-of-freedom EGTs. All the examples have been found satisfactory results with existing literature.
The genus Caesalpinia belongs to the family Caesalpiniaceae and includes 280 species distributed in tropic and subtropical regions of the world. Historically, species of the genus Caesalpinia have been used to treat a wide range of ailments, such as malaria, ascariasis, dysentery, fever, rheumatism, and influenza. Phytochemical works led to the isolation of triterpenoids, diterpenes, flavonoids, steroids and phenolic compounds. Pharmacological studies have shown that the extracts and compounds isolated from this genus exhibited anticancer, anti-inflammatory, anti-malarial, antipyretic, anti-microbial, anti-rheumatic, antiulcer and anti-diabetic activities. Therefore, this review aims to provide a comprehensive overview of the genus Caesalpinia's ethnopharmacology, phytochemistry and pharmacology.
Background: Emerging data found that Type 2 diabetes mellitus (T2DM) is associated with Vitamin D deficiency at various frequencies. This study aims to estimate the prevalence of Vitamin D deficiency in T2DM patients in Qatar and the correlation between Vitamin D deficiency and other variables such as dyslipidemia, glycemic control, and microalbuminuria. Methods: This retrospective cross-sectional analytical study was conducted in the medical outpatient clinic at Hamad General Hospital. The study involved adult patients (≥18 years) with T2DM. The study covered patients admitted between January 1, 2018, and July 31, 2018. Ethical approval was obtained from the Medical Research Committee. Results: We recruited 400 subjects with T2DM. Their mean age was 58.97±10.32 years, and the majority were women (52.0%) and Arabs (69.5%). The mean duration of Type 2 diabetes diagnosis was 14.94±8.99 years. The prevalence of Vitamin D deficiency was 29.5%. A comparison between Vitamin D deficiency and non-vitamin D deficiency groups showed a statistically significant difference in terms of fasting blood (FB) sugar (p<0.001), random blood (RB) sugar (p<0.001), hemoglobin A1c (HBA1c) (p<0.001), total cholesterol (P = 0.001), low-density lipoprotein cholesterol (LDL [C]) (p=0.004), high-density lipoprotein cholesterol (HDL [C]) (p<0.001), triglyceride (p<0.001), and urinary albumin excretion rate (UAER) (p=0.007). Data analysis showed that a significant negative correlation was found between Vitamin D level and FB sugar (r=−0.208, p<0.001), RB sugar (r=−0.20, p<0.001), HBA1c (r=−0.260, p<0.001), total cholesterol (r=−0.218, p<0.001), LDL (C) (r=−0.176, p=0.004), triglyceride (r=−0.342, p<0.001), and UAER (r=−0.184, p=0.007). Conclusion: Our study showed a significant correlation between Vitamin D deficiency and the poor control of T2DM, dyslipidemia, and microalbuminuria. The results emphasize the importance of monitoring Vitamin D status in high-risk populations.
Université Nazi Boni
Central Council For Research In Unani Medicine, Ministry Of Ayush, Government Of India, New Delhi