Abstract- The injection of the PV Grid power into an electric grid affects the power quality. The influence of the PV Grid in the grid system concerning the power quality measurements and the norms followed according to the guidelines specified in the International Electro technical Commission standard, are the active and reactive power variations, variation of voltages, flicker, harmonics and electrical behavior of switching operations. The work study demonstrates has overall good functional characteristics, better performance and faster response than existing systems. The proposed system of having STATCOM is smaller in size and less costly when compared to the existing system. In this proposed system static compensator (STATCOM) is connected at a point with a battery energy storage system to reduce the power quality issues. The effectiveness of the proposed scheme gives the reactive power demand of load and the induction generator. Simulation is done by using MATLAB / SIMULINK-Sim power system software.
Recently, wireless sensor networks (WSNs) have been deployed for a wide variety of applications, including military sensing and tracking, patient status monitoring, traffic flow monitoring, where sensory devices often move between different locations. Securing data and communications requires suitable encryption key protocols. In this paper, we propose a certificateless-effective key management (CL-EKM) protocol for secure communication in dynamic WSNs characterized by node mobility. The CL-EKM supports efficient key updates when a node leaves or joins a cluster and ensures forward and backward key secrecy. The protocol also supports efficient key revocation for compromised nodes and minimizes the impact of a node compromise on the security of other communication links. A security analysis of our scheme shows that our protocol is effective in defending against various attacks.We implement CL-EKM in Contiki OS and simulate it using Cooja simulator to assess its time, energy, communication, and memory performance.
The aim of this study is to identify the move from cultural to creative cultural tourism as new model for meeting tourists' demands for creative experiences. Hence, traditional cultural tourism must reinvent itself as creative tourism for those creative tourists seeking more interactive experiences. This new trend in creative cultural tourism has emerged from the changes in the production of cultural tourist commodities, the skilled tourist activities, and new consumption patterns. Moreover, creative cultural tourism can solve those problems experienced by traditional cultural tourists. A literature review confirmed that a move to creative cultural tourism, or intangible heritage (i.e., linguistic diversity or gastronomy), from tangible cultural attractions (i.e., museums, monuments, and so forth) increases the attractiveness of tourism destinations. In addition, this study explains the transformation from traditional cultural to creative cultural tourism.
Women, who constitute the largest group of farmers and who have conserved and improved ago-biodiversity, often have no property rights to land. They also tend to be bypassed by development schemes related to biodiversity. Women’s universities, home science colleges and other educational institutions catering to women’s needs rarely include biodiversity as a field of study. Women can ensure sustainable development and biodiversity conservation/enhancement. Structural obstacles to the advancement of indigenous women need to be addressed, by facilitating and redefining of gender roles and relations in the family and society. Increased involvement of women in decision making structures can contribute to biodiversity: If women are left out of the planning and implementation of local initiatives, valuable input is lost. As well, there tends to be very unequal participation among women and men in official biodiversity initiatives. Given educational biases, cultural obstacles and gender stereotypes, women often find it difficult to enter into relevant professional fields and gain specific expertise. The challenge sustainable agriculture is the safeguarding of agro-biodiversity by paying greater attention to diverse and integrated agricultural systems, especially those managed by women that provide food and livelihood security
For a long time, cardiovascular diseases have been the leading cause of death worldwide. Machine learning has found significant usage in the medical field as it can find patterns in data. Classification models can help cardiologists to diagnose heart diseases and minimize misdiagnosis accurately. In this paper, we explored a dataset related to heart disease and compared the accuracy of 43 machine learning classification models. The dataset for this research was downloaded from Kaggle; it contained 1190 observations, 11 features (age, sex, chest pain type, resting blood pressure, serum cholesterol, fasting blood sugar, resting electrocardiogram results, maximum heart rate achieved, exercise induced angina, oldpeak, the slope of the peak exercise ST segment) and a binary target variable (no heart disease or observed cardiovascular disease). For data exploration, preprocessing, training, testing, and predictor importance analysis, we used MATLAB R2004a software and the Classification Learner app included in this software. Before training machine learning classification models, we divided the dataset into a training set (90% of observations) and a test set (10% of observations). To prevent overfitting during the training of classification models, 10-fold cross-validation was used. The result showed that the best accuracy was reached with an optimized ensemble classification model (validation accuracy: 0.9262 and test accuracy: 0.9580). After calculating the permutation importance of each feature, we observed that the most important feature among all 11 features was the slope of the peak exercise ST segment.
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
A simple and rapid RP-HPLC method has been developed and validated for the simultaneous determination of Levocloperastine fendizoate and Chlorpheniramine maleate syrup formulation. Resolution of the analytes was achieved within 10min, employing a mixture of 10mM mobile phase Buffer (pH 6.5): Acetonitrile (50:50, % v/v) as isocratic mobile phase, pumped at 1.0mL/ min through a C18 column (5μm particle size). The detection wavelength for the analytes was 227nm. The system suitability parameters were found to be acceptable. The linearity of response (r2>0.999) in the appropriate ranges (from 50% up to 150% of the expected concentrations of the analytes in the formulations), method accuracy (RSD<2.0%), repeatability and intermediate precision (RSD<2.0%), were confirmed. Robustness result indicates that the methods performance can withstand small variations in method parameters. Satisfactory results obtained in terms of analyte recovery and RSD, while analyzing marketed pharmaceutical preparations. Hence the method can be useful for regular analysis of this combination in marketed syrup formulation.
This study outlines the different kinds of information resources available, the current situation of digital preservation, the requests of librarians and users, and offers recommendations, although limited, for future research on storage mediums, transfers, conversions, and general management techniques. Libraries worldwide have had to address a number of concerns related to digital information preservation, including organizational, resource, legal, and technical ones. Despite the fact that libraries have been exploring a variety of preservation techniques, including emulation, migration, and technology preservation, there is still a need for a preservation approach that is both financially realistic and widely accepted. Digital content access is ensured over time through a combination of rules, strategies, and actions known as digital preservation. An information resource is any component of a computer system that is only partially available; an electronic resource is information that can be stored as electrical signals; and a web resource is a data source that is accessible over the World Wide Web. It is important to preserve information of long-term value so that future generations can access it. This is the goal of information source preservation. Formal preservation programs have been launched for conventional resources in document, microform, photographic, and, to a lesser extent, audio-visual formats by numerous large libraries, information centers, and archives in recent decades. The field of digital preservation is still quite experimental and fraught with the dangers of using unproven techniques. The introduction of digital preservation adds to the challenge facing documents and library services in maintaining a legacy of documents in traditional formats.
Hydatid disease or hydatidosis is a worldwide zoonosis disease caused by the tapeworm of Echinococcus granulosus and still widely endemic in Tunisia especially in rural areas where the sheep-dog cycle is dominant. It is an important public health problem in the pediatric age group causing significant morbidity and mortality. We report a case of primary hydatid cyst of the small intestine in a child and we want to highlight the difficulty that we meet in the diagnosis despite the contribution of imaging.
Mutual fund investment specifically in India and particularly in western Maharashtra is a very challenging aspect. This paper aims to study various factors influencing the investor’s choice of mutual fund, criteria for selecting particular scheme, previous performance of Mutual fund asset Management Company and services provided by them. Similarly Investor education and awareness. To have the competitive advantage proactive steps taken by the Asset management companies would be beneficial like proper financial planning guidelines, providing information pertaining to Net asset value, benchmark indices, analysing purchase decision involvement of the investors and very importantly understanding the risk averse behaviour of the investors and adequate and reliable information about the scheme.Understanding investor behaviour, specifically information search and Processing behaviour of mutual fund schemes is instrumental for effective marketing. Perhaps very few researchers have focused on investor behavioural finance. It is complex set of understanding pertaining to investor psychology; various parameters guiding principles and risk averse capability of the investor dynamically guide the behaviour. Mutual fund companies while promoting the products and marketing need to consider these several influencing parameters so as to effectively cater to the needs of the investor which would truly win the customers and enhance customer confidence and trust.Risk aversion behaviour is also the key to understand the investor risk appetite behaviour in terms of conservative or aggressive investor measuring various demographic and psychographic metrics that play a crucial role to predict and understand the likely behaviour.
This study explored how Egyptian journalists perceive the opportunities and challenges of robot journalism and its effect on newsroom operations. Guided by Roger Fidler’s Mediamorphosis Theory and in-depth interviews with journalists, the study reveals that artificial intelligence improves efficiency, data processing and investigative reporting. The participants cited ethical responsibility, employment stability, and cultural appropriateness as areas of concern. The findings highlight how Egyptian reporters are seeking a moderate solution and automation, which does not compromise professional judgment or public confidence. The study reveals that the adoption of robot journalism needs to be done responsibly and contextually to facilitate innovation in Egypt’s rapidly evolving media landscape.
Background: Pregnancy-related hormonal changes increase the risk of gingival inflammation and bleeding. Poor oral hygiene and dietary habits, such as frequent intake of sugary foods, may worsen this risk. Understanding the relationship between diet, oral hygiene, and gingival health in pregnant women is essential for improving prenatal care. This study aimed to assess dietary patterns, oral hygiene practices, and self-reported gingival bleeding among pregnant women attending the Mother and Child Hospital, Ondo, Nigeria. Methods: A descriptive cross-sectional study was conducted over four months among 216 pregnant women at the Mother & Child Clinic, University of Medical Sciences Teaching Hospital, Ondo, Southwest Nigeria. A structured, self-administered questionnaire collected data on sociodemographic characteristics, oral hygiene habits, perceived oral health conditions, and dietary patterns. Clinical oral examinations were conducted using the Oral Hygiene Index. Data were analyzed using SPSS version 25, with p < 0.05 considered significant. Results: Most participants (79.2%) were in their second or third trimester. Although 83.3% used toothbrushes and 52.3% brushed twice daily, 39.8% had poor oral hygiene, and 33.3% reported gingival bleeding. Despite 76.4% awareness of dental services, 53.2% had never visited a dentist. Most participants frequently consumed fruits (88.9%), vegetables (84.8%), and animal proteins (84.7%), while 43.0% consumed sugary drinks regularly. No significant association was found between dietary habits and gingival bleeding. Conclusion: The study revealed a clear awareness–behavior gap: good knowledge of oral health did not translate into optimal hygiene practices or dental visits. Poor oral hygiene remained common, and gingival bleeding was prevalent. Although most participants had healthy diets, sugary drink intake was still high. Diet alone was not protective against gingival bleeding. Promoting effective oral hygiene and integrating dental care into prenatal programs is recommended.
Most of mosquito-repellent products and devices are made up of synthetic materials presenting market which causes various harmful effects on human beings. The resistance can be developed by the mosquito due to continuous exposure at high doses. Hence, the present research work represents the development and evaluation of mosquito repellent sticks with the help of various herbal products such as starch powder, wood powder, charcoal powder, eucalyptus oil, coconut oil, lavender oil, lemongrass and cinnamon oil, peppermint and citronella, neem oil making them ozone-friendly, financial effective, non-harmful.
Ensuring consistent raw material quality is a significant challenge in chemical manufacturing, particularly for medicinal compounds where safety and efficacy are paramount. In these situations, a unique methodology known as Statistical Process Control (SPC) come into play. This study provides statistical process control analysis of four critical operational parameters for most the raw chemical compounds, especially in the medicinal chemistry— Specific Optical Rotation (SOR), Water Content (WC), RI, and Chromatographic Purity (CP)—derived from a dataset of 26 observations in an applied engineering context. The methodology encompasses descriptive statistics, rigorous distribution identification using Goodness-of-Fit tests, and process stability assessment via Individual- Moving Range (I-MR) and Exponentially Weighted Moving Average (EWMA) control charts. Descriptive statistics revealed diverse data characteristics, notably the high positive skewness (2.623) and kurtosis (9.386) of WC (Mean ± Standard Deviation: 0.177±0.106987) and the presence of negative values for SOR (Mean: -0.1, Min: -2, Max: 2). Distribution fitting identified Logistic and Normal as the most suitable for SOR, while RI demonstrated a best fit for normal distribution with Johnson Transformation. WC and CP exhibited significant non-normality and challenges in fitting standard distributions, often accompanied by warnings regarding convergence or parameter estimation stability. Crucially, control chart analysis identified significant out-of-control conditions for SOR, WC, and RI, indicating inherent process instability. CP, conversely, demonstrated stability with the optimized EWMA chart. The findings underscore the necessity of tailored statistical approaches for diverse data characteristics in quality control. Implementation of Statistical Process Control should not be underestimated in the chemical manufacturing industry, notably in the developing nations.
Migratory behaviour in Littorina scabra (Linne 1758) was studied in a mangrove ecosystem and observations were made in their natural habitat or in situ observation in Tanjung Tiram, Ambon. Migratory speed and pattern of L. scabra of different sizes (small and large) particularly in mangrove Sonneratia alba were observed throughout of the February 19th to March 11th, 2019 during the day and night on incoming or outgoing tides and these are usually a 3 hours (270 minutes) observation. Marked snails were used to track the position to investigate their migratory direction and speed during advancing and receding tides. Those organisms migrate up and down the trees following the tidal cycles. This study indicates that small size organisms which live on leaves, branches or trunks move faster than the big organisms and they move faster during the incoming tide than outgoing tide. For a big size L. scabra, they move slower during the incoming tide than the outgoing tide. This behaviour indicates that they move faster to avoid immersion during incoming tide than during the outgoing tide when they move slower because they are searching for food. The migration trials showed different patterns for all sizes of L. scabra and this pattern seems to be influenced by the area of surface they occupy such as leaves, branches or trunks. They tend to move forward in one direction (almost straight line) when they are on a small surface such as trunks and on the larger surface such as leaves and braches most L. scabra of all sizes make different trial patterns such zig-zag.
Kidney transplant kidney transplant ( KTx) recipients have increased susceptibility to a spectrum of infections including; bacterial, viral, and fungal pathogens. Many factors contribute to their infection potential risk, in terms of their immunosuppressive state, that result in suppression of their B‑and T‑lymphocyte repertoire, also to consider certain donor and recipient‑related factors, that make them at risk of specific type of infectious complications. In addition kidney transplant patients tolerate poorly infections, which may adversely affect their graft function, by inducing glomerular injury, hence early diagnosis, directed therapy, and careful dosing of antimicrobial agents is of paramount importance in reducing patient’s morbidity and mortality. We report a kidney transplant patient, who received her live related kidney graft 7 years earlier (in 2013), she has been with stable graft function in most of her follow up period, until she presented with pyrexia, dyspnea and fatigue associated with deterioration of her graft function.
The article is a discourse analysis of the Wildflower telerserye, exploring the themes and portrayals of the main character and the ambiguities projected by her characterization. The research’s objective revolves around the details that upon the attempt of the telersye to flaunt the modern archetypes of a Filipina, a strong and empowered woman who liberates under the yoke of patriarchal hegemony, her actions and ways were deemed crucial and subjected to great scrutiny. The researcher also dealt with how these portrayals affect and reflect the Filipinos’ way of thinking and sense of morality. Two major literary theories were used to underscore the article’s crucial points. To show how the woman portrayals in teleserye try to subvert the idea and configuration of patriarchy, Feminism (Helene Cixous) was used. Meanwhile, Deconstructionism (Jacques Derrida) was employed to show that in the attempt of the teleserye to empower the woman lead character, remove her from her marginalized and stereotypical views, and liberate her from the yoke of patriarchal hegemony, the result was otherwise. Based on these analyses, a synthesis of Filipinos’ sensibilities on how it affects and reflects their ways of thinking was crafted.
This study was aimed to develop lomustine loaded chitosan nanoparticles using a homogenization and spray drying technique. Effect of crosslinking agents (sodium tripolyphosphate (TPP), and sodium hexametaphosphate (HMP)) were studied on the leaching of drug, water uptake of hydrogels, drug release from matrix and its mechanism. Nanoparticles were obtained in the average size range of 111±16.2 to 942±11.7 nm with polydispersity index (PDI) from 0.116±0.039 to 0.517±0.037. Zeta potential of nanoparticles was ranged from 29.0±1.1 to 56.0±1.1 mV. The % encapsulation effi ciency of nanoparticles ranged between 58±0.88% and 96±0.51%.nanoparticles were coated with PEG 6000 to modulate drug release. Swelling index of chitosan-TPP and chitosan-TPP-PEG nanoparticles was about 428% and 350% over the 4 h and it was more (about 465% and 395%) for chitosan-HMP and chitosan-HMP-PEG nanoparticles. Drug release was sustained and diffusion controlled. Optimized formulation was tested for anticancer activity and drug retention study. Cytotoxicity on human lung cancer cell line L132 was studied by trypan blue dye exclusion test. Drug loaded nanoparticles killed L132 cells more effi ciently than the corresponding drug alone (p< 0.05). Due to the increased surface area lomustine loaded TPP and HMP crosslinked chitosan nanoparticles showed better anticancer activity.
A short review on the multi-use of this ancient herb, German Chamomille. Presented is a synthetic route to azulene, its most bioactive principle (antioxidant, disinfectant, wound-healing, antibacterial).
CoronaVirus’ is a hard hit on both Millennial consumers and marketers. It forced consumers and marketers to do the usual activities of buying and selling differently. Panic buying and herd mentality was widely noticed among millennials. Their unusual buying behavior which reflects behavior during a crisis is highly influenced by environmental stimuli. From this study, it is found that there has been a significant buying behavioral shift of global millennials in emerging markets (BRIC – Brazil, Russia, India, China; CIVETS – Columbia, Indonesia, Vietnam, Egypt, Turkey, South Africa). It is evident that the initial marketing attempts of marketers failed during COVID-19 due to the lack of understanding of the significance of environmental and marketing stimuli in consumers’ purchase decisions. This study brings out the various positive substantial changes brought about through internetization in marketing goods and services to millennial customers during the pandemic. The pandemic enabled a rapid digital revolution in buying and selling using digital/online platforms. The study suggests the application of the Black Box Model by marketers in marketing and selling decisions. The Internet has been the most important tool used by customers and sellers to access what they need. This study is useful to marketers and upcoming entrepreneurs to understand that it is the consumer’s buying behavior that triggers and pushes marketers to sell differently.