bluuebunny/crossref_metadata_2025 huggingface dataset:
Potency of Banana (Musa acuminata Linn.) Stem Fiber as a Reinforcement Material for Heat Cured Acrylic Resin
Authors: Harahap Sefty Aryani , Yudhit Astrid , Wardani Fanny Kusuma
Published: August 2022

Denture base made of heat-cured acrylic resin can be sometimes fractured easily during impact such as falling while cleaning it. This study aimed to evaluate the impact strength of heat-cured acrylic resin added with banana (Musa acuminata Linn.) stem fiber of 0.5%, 1%, 1.5% by weight. A total of 32 plate-shaped specimens of heat-cured acrylic resin measuring 65 x 10 x 2.5 mm were divided into 4 groups, group I as control (without addition of banana stem fiber), group II (with addition of 0.5% banana stem fiber), group III (with addition of 1% banana stem fiber), and group IV (with addition of 1.5% banana stem fiber), then the impact strength test was performed using a Charpy Impact Tester. The result shows that the impact strength were increased from group I to group IV and the data obtained were analyzed statistically using One Way ANOVA and post hoc LSD test (p <0.05). The data showed significantly results of the impact strength value with group IV as the highest among all groups, and an increase in impact strength occurred along with increase in the percentage of fiber added to the heat-cured acrylic resin. Based on the results, banana stem fiber has the potential as heat cured acrylic resin reinforcement materials.
CLINICAL MANIFESTATIONS, IMAGING FEATURES, AND TREATMENT FOLLOW-UP OF 29 CASES WITH HEPATIC TUBERCULOSIS
Authors: Saiduo  , Wei  , Jichan  , Xinchun  , Hongye  , Ning  , Jiang Xiangao
Published: August 2022

To understand the clinical and imaging manifestations and the treatment and follow-up of hepatic tuberculosis (HTB), we retrospectively analyzed the clinical and imaging data of 29 patients with HTB who had been diagnosed clinically or by biopsy, and the clinical and imaging data had been summarised. Patient characteristics were followed up after anti-TB drug treatment. The median age of the 29 patients with HTB was 37 years, and most were male (58.6%). The patient's symptoms included fever (48.2%), respiratory symptoms (27.5%), abdominal pain (24.1%), and abdominal distension (10.3%). Elevated erythrocyte sedimentation rate (79.3%), elevated serum C-reactive protein (75.8%) and hypoalbuminemia (62.0%) were common features. Three patients were serologically positive for acquired human immunodeficiency syndrome, and two were serologically positive for hepatitis B surface antigen with normal tumor markers. The 29 patients with HTB included 17 with serous HTB, 9 with parenchymal HTB (8 with parenchymal nodular HTB and 1 with parenchymal miliary HTB), 1 with intrahepatic abscess type HTB, and 2 with hilar HTB. Approximately 86% of the patients also had pulmonary TB. Most of the serous HTB patients also had tuberculous peritonitis. Enhanced computerized tomography scans of the serous and parenchymal HTB cases showed the progressive development of lesions. Abnormal blood perfusion was observed in the hepatic artery, and the clearest evidence of TB was observed in the hepatic portal vein. Magnetic resonance imaging indicated that the lesions returned a high signal in the diffusion-weighted imaging sequence. However, the lesions' apparent diffusion coefficient values reflected high signals. The Xpert MTB/RIF test detected Mycobacterium TB complex in the liver biopsy fluid from 10 patients.
Regarding histopathology, one patient showed granulomatous inflammation, and one patient's acid-fast bacillus (AFB) stain was positive. The treatment of two patients was stopped due to their adverse reactions to the drugs and the risk of creating drug-resistant TB. The remaining patients received anti-TB treatment, but one subsequently died, and two were unavailable for follow-up.
The clinical symptoms of HTB are difficult to detect, and it has diverse manifestations by imaging, with no obvious specificity in terms of pathological results. Therefore, follow-up of liver lesions for checking anti-TB therapy is another method for diagnosing HTB. In addition, early active anti-TB treatment can achieve good curative results.
 
Keywords: hepatic tuberculosis; CT; clinical features; X-PERT; imaging diagnosis
CLINICAL CHARACTERISTICS AND PROGNOSTIC FACTORS IN PRIMARY BREAST DIFFUSE LARGE B-CELL LYMPHOMA
Authors: Chen Guangliang , Li Dou-dou , Sufen Sufen , Jiang Shiyu , Zhang Qunling , Jin Jia , Xia Zuguang , Liu Yizhen , Liu Xiaojian , Zhu Yanzhe , Chen Yu , Gu Lingli , Hong Xiaonan , Cao Junning , Tao Rong , Lv Fangfang
Published: August 2022

Background
Primary breast diffuse large B-cell lymphoma (PB-DLBCL) is a rare subtype of non-Hodgkin lymphoma (NHL) with limited data on the clinical features and prognostic factors.
Patients and Methods
A consecutive cohort of patients with PB-DLBCL was retrospectively analyzed in our hospital from February 1997 through July 2018. The primary endpoint is overall survival (OS) contributing to any cause.
Results
A total of 76 patients were diagnosed with PB-DLBCL. The median age at diagnosis was 51 years (range: 25-80 years), with female prevalence (98.7%). Forty (52.6%) patients had right-sided breast involvement but no bilateral breast involvement at diagnosis. Overall, disease stages IE and IIE were seen in 55 (72.4%) and 21 (27.6%) patients, respectively. According to the stage-modified International Prognostic Index (IPI), 37 (48.7%) patients were classified in the very good risk group (IPI 0). Of the 72 patients available, the non-germinal center B-cell (non-GCB) subtype of DLBCL was observed in 66 (91.6%) patients. All patients received anthracycline-based chemotherapy, 56 (73.7%) with rituximab, 31 (40.8%) also with additional radiation therapy, and 14 (18.4%) patients received a prophylactic intrathecal injection. Seven (9.2%) patients had refractory disease. With a median follow-up of 6.8 years (range 0.4-25.0 years), 10 (13.2%) patients had a relapse in the central nervous system (CNS) site. The 5-year and 10-year OS of all the patients was 97.2% (95% CI: 99.3-89.5) and 84.8% (95% CI: 70.0-93.5), respectively. The median OS was not reached. The median progression-free survival (PFS) was 10.3 years for patients with PB-DLBCL(Figure 2B). The 5-year PFS of all the patients was 76.3% (95% CI: 64.6-84.6). Univariate analysis revealed several prognostic factors, including stage-modified IPI, breast surgery, refractory disease, and CNS relapse. Multivariate analyses produced two independent prognostic factors for patients with PB-DLBCL, including stage-modified IPI score (2-3 versus 0) (hazard ratio: 19.114, 95% CI 1.841 to 198.451, p=0.013) and CNS relapse (hazard ratio: 5.522, 95% CI 1.059 to 28.788, p=0.043).
Conclusion
In our cohort, PB-DLBCL clinical features are similar to prior literature reports. Stage-modified IPI score and CNS relapse were associated with overall survival.
Investigating the IoT Security and Privacy Challenges: Summary and Recommendations
Authors: Chauhan Premlata , Ahmad Shafeeq , Khan Pervez Rauf , Khan Naseem Ahmad
Published: August 2022

With the development of innovative technology transformation like cloud and Internet of Things (IoT), more technology companies are pursuing research in employing such innovations. Smart homes and cities are just two examples of the many systems and technologies that the IoT can endorse. IoT - based smart objects communicate with other parts, such as proxies, portable devices, as well as data collectors. Although these components help to tackle a number of societal issues and offer users new, cutting-edge services, their confined processing power makes them susceptible to well-known privacy and security attacks. This in turn highlights the demand for a strong technical as well as legislative foundation and asserts the significance of validity and reliability in IoT. This paper provides an insight of the IoT, security, as well as privacy challenges, and also discusses the recommendations for IoT solutions. Further we also highlighting some unresolved problems that require further study.
Gamificación Digital en la Educación Secundaria
Authors: Faure-Carvallo Adrien , Calderón-Garrido Diego , Gustems-Carnicer Josep
Published: August 2022

Introducción: La Gamificación Digital está tomando cada vez más protagonismo en las aulas de Educación Secundaria. Este estudio ofrece una revisión sistemática de la literatura científica publicada sobre la temática. Metodología: Se analizaron las bases de datos de la Core Collection de la Web Of Science y de Scopus. Tras una criba en función de los criterios de inclusión y exclusión establecidos se analizó una muestra de 29 artículos. En el análisis se tuvieron en cuenta tanto las principales características bibliométricas de la producción científica como las categorías emergentes. Resultados: Se observó que la mayoría de la producción científica tiene una naturaleza empírica siguiendo tres patrones temáticos: el estado actual de la Gamificación Digital en la Educación Secundaria; los beneficios que esta comporta; y las propuestas de aplicación y/o mejora. Conclusiones: Incluir la Gamificación Digital en la Educación Secundaria presenta múltiples beneficios, pero requiere de la complicidad de todo el profesorado y una amplia comprensión por parte del alumnado.
In vitro antifungal, anti-inflammatory and cytotoxic activities of Rumex abyssinicus rhizome extract and bioassay-guided isolation of cytotoxic compounds from Rumex abyssinicus
Authors: Abdulkadir Emam Jibrel , Ele Yaya Estifanos , Iqbal Choudhary Muhammad , Yousuf Sammer , Mehari Gebremedihn Tetemke
Published: August 2022

ABSTRACT. Rumex abyssinicus showed strong cytotoxicity against HeLa cells (IC50 = 22.25 μg/mL) and weak cytotoxicity against PC3 and BJ cells with percent inhibition of 58.6, 25.8 and 29.7% at 30.0 μg/mL. It showed moderate antifungal activity against Aspergillus niger with a percent growth inhibition of 55.5% at 3000 µg/mL. It also strongly inhibited oxidative burst with IC50 value of 24.8 μg/mL. DCM (100%) and DCM: EtOAc (1:1) fractions showed strong cytotoxicity against HeLa cells, whilst pet ether: DCM (1:1) fraction showed strong cytotoxicity against PC3 cells with IC50 values of 29.3, 26.3 and 24.3 μg/mL, respectively. Moreover, the DCM: EtOAc (1:1) fraction inhibited ROS production with IC50 value of 18.8 μg/mL. Cytotoxic fractions afforded chrysophanol (1), physicon (2), emodin (3), citreorosein (4) and β-sitosterol (5). Among the isolated compounds, emodin (3) showed strong cytotoxicity against HeLa cells, whilst chrysphanol (1) and physicon (2) showed strong cytotoxicity against PC3 cells with IC50 values of 8.94, 22.5, and 28.5 µM, respectively. In addition, emodin (3) and citreorosein (4) showed strong inhibition against ROS production with an IC50 value of 16.2 and 38.2 μg/mL. The findings of this study suggest R. abyssinicus as a good candidate for cancer and inflammation management.  

 

KEY WORDS: Polygonaceae, Rumex abyssinicu Jacq., Cytotoxic, Antifungal, Anti-Inflammatory, Reactive oxygen species

 

Bull. Chem. Soc. Ethiop. 2022, 36(4), 879-892.                                                              

DOI: https://dx.doi.org/10.4314/bcse.v36i4.13
Polycyclic aromatic hydrocarbons in harvested rainwater in Warri and Agbarho, Nigeria
Authors: Obruche Kennedy Erienu , Adams Itodo , Raymond Wuana , Ande Sesugh
Published: August 2022

ABSTRACT. The aim of this research was to provide an overview of current knowledge, by assessing the possible contamination sources of harvested rainwater by polycyclic aromatic hydrocarbons (PAHs), its effects and possible human health risk assessment. Random sampling technique was used to collect eight rainwater samples from different roofing materials made from (asbestos, zinc, aluminium and thatch) in Warri and Agbarho (AGB). The samples were extracted using a liquid-liquid extraction (LLE) system according to the established procedures of United States Environmental Public Agency (USEPA). Under the optimized conditions, the ranges of extraction recoveries and solid-phase extraction (SPE) clean-up of the PAHs in the harvested rainwater were in the range of 71-90%. Gas chromatography-mass spectrometry (GC-MS) was used for the determination of the sixteen priority PAHs in the samples. The total concentration of PAHs for each of the roof types in Warri Refinery Petrochemical Company (WRPC) are: 0.036±0.012, 0.047±0.020, 0.045±0.018 and 0.0023±0.008 ppm for aluminium, zinc, asbestos and thatch roof, respectively. In addition, total concentration of PAHs for each of the roof types in AGB are: 0.046±0.020, 0.024±0.009, 0.023±0.008 and 0.021±0.007 ppm for aluminium, zinc, asbestos and thatch roof. The PAHs analysed exceeded the United States environmental protection agency (USEPA) standards of contamination.

 

KEY WORDS: AGB, GC-MS, Harvested Rainwater, LLE, PAHs,  WRPC

Bull. Chem. Soc. Ethiop. 2022, 36(4), 779-789.                                                            

DOI: https://dx.doi.org/10.4314/bcse.v36i4.5
Distribution of E. coli biotypes shed by dairy calves in selected dairy farms in Bishoftu, Ethiopia
Authors: Akane Aragaw Ebabu , Tessema Tesfaye Sisay , Asfaw Ali Destaw
Published: August 2022

A longitudinal study was undertaken to investigate E. coli using standard biochemical and sugar fermentation tests. Faecal samples were taken from calves purposively from three selected dairy farms in Bishoftu Ethiopia. Four different sampling times were used to observe the detection rate of E. coli. The overall detection of E. coli was 84/104 (80.70%). The detection of E. coli isolates in different sampling points ranged from 16.34% to 25.00% in which the occurrence of E.coli has a significant association. All E. coli isolated showed different sugar fermentation patterns. E. coli was biotyped into 14 biotypes and variation occurred for samples taken during the first to fourth sampling points, the pattern ranging from 20.20% to 31.00%. Among 14 biotypes, biotypes VI and III dominate with 55.95% and 16.67% respectively. E. coli biotype (predominantly group VI) distribution concerning sampling time points have a significant association (p=0.039).Diverse natures and variations of E. coli were observed in calves with different sampling points as the main determinant. Farm management practice could reduce the occurrence of the pathogen in farm animals, particularly neonatal calves.
A One Health approach to investigate bats as a potential source of zoonotic mycoses in selected areas of Mpumalanga province, the Republic of South Africa
Authors: Mengistu Tilaye Shibbiru , Van Wyk Ilana , Oosthuizen Marinda , Cohen Lientjie , Wentzel Jeanette
Published: August 2022

A One Health approach pilot study was carried out in selected villages within the Mnisi Traditional Authority’s area, Manyeleti Game Reserve, and Hans Hoheisen Wildlife Research Station in Mpumalanga Province, the Republic of South Africa from July to December 2018. The study’s main objectives were to identify positive and negative human-bat-environment interactions and microbiological screening of bats’ faecal samples for zoonotic fungi. Thirty-three purposively selected participants were asked to complete a structured questionnaire with multiple-choice and open-ended questions, and a total of 55 faecal samples were collected, 25 from identified bat roosting sites and 30 from captured bats. Ninety seven percent of respondents were aware of the presence or absence of bats in their immediate surroundings. However, the majority of them (87.9%) were uneasy about the presence of bats in their buildings, and nearly half (48.5%) were unsure whether bats play a positive or negative role in the environment. Some respondents (15.2%) stated that bats play beneficial roles in the environment, such as pollinating plants, spreading seeds of indigenous plants, catching harmful insects, and so on. More than half of the respondents (66.7%) stated that bats can be a nuisance; 18.2% of those polled reported contracting fungal diseases as a result of cleaning bat droppings without adequate protection. The analysis of faecal samples revealed that bats can harbour pathogenic fungi such as Aspergillus fumigatus, and A.flavus. We concluded that bats can harbour fungal pathogens that cause human diseases. Further research should be conducted to compile a complete list of fungi pathogens in bats in the study area.
Antimicrobial, antioxidant, anthelmintic and anti-inflammatory bioactivities of Sabicea calycina
Authors: Akakpo Christian , Mensah John Kenneth , Akoto Clement Osei
Published: August 2022

Sabicea calycina is broadly used for the treatment of different diseases including sexually transmitted infection, gastrointestinal disorders, wound treatment, and wound dressing. This study is focused on assessing the biological activity (anthelmintic, antioxidant, antimicrobial, and anti-inflammatory) studies of methanol and hexane leaf crude extracts of S. calycina on its ethno medicinal uses. Phytochemical analyses revealed the presence of six phytoconstituents in the methanolic extract and by demonstrating four in the hexane extract. In vitro, the anthelmintic activity of the crude extracts was examined against Milsonia ghanensis (Earthworms) using albendazole as the standard drug. The anthelmintic activity of methanol and hexane extracts at test concentrations was observed to be significantly higher compared to albendazole. The methanolic extract was comparatively the more potent antioxidant as ascertained by its relatively higher antioxidant capacity TAC and its disproportionately lower for the DPPH and H2O2. Regularly for each of the group of four bacterial and one fungal pathogenic microbial cell lines, the methanolic extract showed higher antimicrobial activity values, MICs that were quantitatively lower than that of the hexane extract. In vivo anti-inflammatory activity of methanol and hexane extracts was assessed against diclofenac as a reference drug, utilizing the carrageenan-induced chick foot edema method using 7-day old chicks. This method indicated the methanol extract showing a dose- dependent decreasing in foot edema and the hexane extract lack of showing measurable anti-inflammatory activity. The results show that the extracts could be employed as a remedial contender for the treatment of helminthic, oxidation, microbial and inflammatory diseases.
Prévalence des souches de salmonelles dans les graines de sésame et leurs produits dérivés au Burkina Faso
Authors: Douamba Zoénabo , Ouarme Mamoudou , Compaore Sidbewendé Clarisse , Somda Namwin Siourimè , Kabore Donatien , Sawadogo/Lingani Hagrétou , Simpore Jacques
Published: August 2022

Le sésame constitue le deuxième produit d’exportation agricole au Burkina Faso mais sa qualité n’est pas toujours satisfaisante à cause de la présence d’impuretés et parfois de microorganismes pathogènes notamment les salmonelles. La présente étude a pour objectif d’évaluer la prévalence des salmonelles dans le sésame et ses produits dérivés. Au total, 107 échantillons dont 73 échantillons de graines de sésame et 34 échantillons de produits dérivés de sésame (biscuits, croquettes, pâtes, pains) ont été soumis à la recherche de salmonelles selon la norme internationale ISO 6579-1, 2017. La recherche de gènes de virulences (invA, pipD, orfL, misL, spvR) de Salmonella spp. a été réalisée par la méthode de la Polymerase Chain Reaction (PCR). Les résultats ont montré une contamination aux salmonelles du sésame et de ses produits dérivés de 10,28%. Le taux de contamination est de 10,96% (8/73) dans les graines de sésame et 8,82% (3/34) dans les produits dérivés. Le taux de contamination globale est passé à 13,08% par l’analyse moléculaire. Les facteurs de virulence invA, pipD, orfL, misL et spvR ont été retrouvés respectivement à 92,86% ; 92,86% ; 85,71% ; 64,28% et 0%. Ces contaminations aux salmonelles du sésame pourraient être dues à une défaillance dans le respect des bonnes pratiques culturales et/ou des contaminations post-récoltes.

Sesame is the second agricultural export product in Burkina Faso, but its quality is not always satisfactory due to the presence of impurities and sometimes pathogenic microorganisms, particularly Salmonella. This study aimed to assess the prevalence of Salmonella in sesame and its derivatives. A total, 107 samples including 73 sesame seed samples and 34 sesame derived products samples (biscuits, croquettes, pasta and breads) were tested for Salmonella according to standard ISO 6579-1, 2017. The search for virulence genes (InvA, pipD, orfL, misL, spvR) of Salmonella Spp. was carried out by the Polymerase Chain Reaction (PCR) method. The results showed contamination of sesame and its derived products to the salmonella of 10.28%. The contamination rate is 10.96% (8/73) in sesame seeds and 8.82% (3/34) in its derived products. The overall contamination rate increased to 13.08% by molecular analysis. The virulence factors invA, pipD, orfL, misL and spvR were detected respectively at 92.86%; 92.86%; 85.71%; 64.28% and 0%. These Salmonella contaminations of sesame could be due to a failure in the respect of good cultural practices and/or post-harvest contamination.
Resistance of the cattle tick Rhipicephalus microplus to alphacypermethrin, deltamethrin and amitraz in Côte d’Ivoire
Authors: Achi Louise Y. , Boka Marcel , Biguezoton Abel , Yao Patrick K. , Adakal Hassane , Kande Souleymane , Azokou Alain , Koffi Landry S. , Akoto Prisca R. , Kone Mamidou
Published: August 2022

Cattle tick Rhipicephalus microplus has become a common problem for cattle herders in Côte d’Ivoire after its discovery there in the early 2000s, despite the availability of a large range of acaricide products. The objective of this study was to assess the resistance of the cattle tick R. microplus to alphacypermethrin, deltamethrin and amitraz, and to provide information to advice farmers of acaricide products choice in Côte d’Ivoire. A cross-sectional survey was conducted in September 2016 on nine farms where resistance to acaricides was suspected. Engorged R. microplus females were sampled and transported to the International Centre for Research and Development on Subhumid Livestock Production (CIRDES) in Burkina Faso. The FAO larval packet test method (adapted by CIRDES) was applied to assess the resistance-susceptibility level of the R. microplus tick populations to three common acaricidal molecules (alphacypermethrin, deltamethrin and amitraz) in Côte d’Ivoire. The results showed resistance ratios (RR) at 50% (RR50 95% CI) ranging from 0.26 (0.20-0.33) to 1910.3 (0.0-9063.3). High resistance to amitraz and deltamethrin was found on all farms, whereas resistance of tick populations to alphacypermethrin varied by farm from very susceptible to highly resistant. These results indicate that alphacypermetrin should remain a recommended acaricide on some farms in the country and underline the importance of raising awareness on the appropriate use of acaricides and monitoring acaricide resistance in tick populations in Côte d’Ivoire. Such actions will support farmers in the control and prevention of R. microplus infestation in cattle herds in Côte d’Ivoire.
Etude de la collecte sélective de déchets ménagers à la source dans la ville de Tsévié au Togo
Authors: Bodjona Magnoudéwa Bassaï , Bafai Diyakadola Dihéénane , Tchegueni Sanonka , Kassem Tchanadèma , Koriko Moursalou , Tchangbedji Gado
Published: August 2022

L’organisation de la gestion des déchets reste quasiment inexistante dans plusieurs villes secondaires des pays en développement. La ville de Tsévié située à 25 km de Lomé, la capitale du Togo, n’est pas en marge. Ce travail vise à mettre en place une étude de faisabilité du tri des déchets à la source dans certains quartiers de la ville Tsévié. Le tri à la source a été effectué dans quarante ménages. L’échantillon de ménage qui a servir à l’étude a été constitué en tenant compte des ménages abonnés aux structures de pré-collecte des déchets dans la ville. Les résultats montrent une acceptabilité estimée à 92,5%. Environ 55% des ménages ont réussi à plus de 75% le tri de déchets à la source. La production spécifique de déchets par habitants par rapport à la quantité totale est de 0,47 kg/hbt/jr tandis que ce ratio est réduit à 0,28 kg/hbt/jr en le calculant par rapport au refus obtenu par le tri. Elle a permis également de se rendre compte qu’une bonne partie des déchets (39,1%) peut être soustraite par l’action du tri à la source aux déchets devant aller à la décharge finale. Une sensibilisation au quotidien avec des mesures incitatrices prises par les autorités locales envers les populations pourra impacter positivement la gestion des déchets ménagers à Tsévié.

Waste management organization is almost non-existent in many secondary cities of developing countries. Tsévié a city at 25 km from Lomé the capital of Togo is not spared from this observation. This work aims to set up a feasibility study of sorting waste at source in some districts of the city of Tsévié. Source separation was carried out in forty households. The sample of households which was used for the study was constituted taking into account the households subscribed to the structures of pre-collection of waste in the city. The results show an estimated acceptability of 92.5%. About 55% of households have been more than 75% success in sorting waste at source. The specific production of waste per inhabitant compared to the total quantity is 0.47 kg/hbt/day while this ratio is reduced to 0.28 kg/hbt/day by calculating it in relation to the refusal obtained by sorting. It also made it possible to realize that a good part of the waste (39.1%) can be subtracted by the action of sorting at the source from the waste having to go to the final dump. Raising awareness on a daily basis with incentive measures taken by the local authorities towards the populations could have a positive impact on the management of household waste in Tsévié.
Over current protection of distribution system with impact of solar and wind generation using DIgSIlent power factory
Authors: Bohre Aashish Kumar , Roy Biman Kumar Saha
Published: August 2022

The utilization of renewable resources has been growing very fast worldwide recently to manage the increasing energy gap, but it also raises some challenges like protection issues, transient stability issues and security issues in the power system operation. Mainly, wind and solar photovoltaic renewable power generation sources are account for bulky renewable energy share. The transients in power systems including renewables are reduced and have recently attracted wide attention. The impact of renewables generation on power system transients should be effectively analyzed and evaluated to improve power system reliability, stability, operation and security. DIgSILENT Power Factory software is more powerful and useful for providing phasor of fundamental power frequency components better than other existing software’s; therefore, DIgSILENT Power Factory is proposed for modeling and analysis of the system.
Effect of change in number and power factor of DG on optimal allocation for minimal actual power loss in RDS
Authors: Kandpal Rohit , Kandpal Rohit , Kumar Ashwani , Kumar Ashwani
Published: August 2022

Due to its remarkable techno-economic advantages, Distributed Generator (DG) penetration is growing drastically. To minimize the power losses and enhance the voltage profile, determining the precise size & position of DG is critical. The proposed paper compares the effect of variations in the number & power factor of DG on its optimal allocation in the Radial Distribution System (RDS) for minimizing the active power loss & enhancing the voltage profile using Grey Wolf Optimization (GWO) algorithm. The Direct Load Flow (DLF) approach is applied to address the system's power flow. Under altering DG parameters, the proposed method computes and compares appropriate DG allocation in standard IEEE 33 & 69 bus RDS.
Clinical experience of medical students in Children Emergency Room: A cross-sectional study at a University hospital in Nigeria
Authors: Abiodun Moses Temidayo , Ikhurionan Paul Ehiabhi
Published: August 2022

Background: The Children Emergency Room (CHER) is a high-volume, fast-paced environment where children present with acute illnesses. With the paradigm shift in educational models towards outcome-based education, teaching and assessment of students must be structured to attain intended learning outcome in every rotation.
Objective: This study assessed the relationship between teaching methods and learners’ satisfaction. We also identified challenges to CHER posting and likely solutions.
Methods: This is a descriptive cross-sectional study, using a semi-structured anonymous feedback form to elicit perception of learning objectives and adequacy of teaching methods in CHER. Adequacy of participation in emergency care was assessed on a 4-point Likert scale. Bivariate analysis for possible determinants of adequate CHER posting satisfaction on a visual analogue scale (VAS) was done. P-value < 0.05 was considered significant.
Results: A total 112 medical students participated in this study; 51.8% of them knew their specific learning objectives on the first day in the unit. The participants’ grand mean score for learning satisfaction in CHER was adequate (2.65±0.24). Their preferred teaching method was Bedside Teaching/ Clerkship (3.01±0.78) but they were dissatisfied with simulations (2.29±0.91) and participation in emergency care (2.19±0.10). Participants in junior posting were more satisfied than those in senior posting (OR =3.45, 95% CI: 1.46- 8.15; p=0.005). A high workload was identified as a challenge.
Conclusion: The overall clinical experience of medical student in CHER is satisfactory. Our study however, shows that there is inadequate simulation-based teaching, case presentation and participation in case management by the medical students. Curriculum reforms may be necessary to address these identified gaps and improve clinical experience of medical students in CHER.
Adaptation of drama to storytelling for classroom teaching: the modern training institute, Uyo experiment
Authors: Iroh Emmanuel O.
Published: August 2022

The need to reduce the complex plot of a drama into a simple, uncomplicated, and enjoyable form through the adaptation of a drama to a story for classroom teaching is the pivot of this work. In traditional African societies, our forefathers used storytelling to teach children the norms and values of society. At the night, during moonlight, the storytelling mode was used, as children gathered under trees to hear stories from elders. Storytelling in the classroom will not only entertain children by making the class work lively and attractive but will also enable the teacher to inculcate all the intended lessons in his set objectives as well as help to mould the child’s character. This work is on the adaptation of Sons and Daughters (drama) by J C De-Graft to a story for classroom teaching. It is a qualitative study and is hinged on Dorothy Heathcote’s postulation that the content of dramatic experience is far more important than literary assumptions. Heathcote views dramatic content as the pivot on which the child’s learning experience revolves because, it will help the child to grow intuitively, and creatively and build confidence which enables him to take decisions. The study concludes that the techniques of adapting drama to story with emphasis on the thematic and dramatic contents as well as the dramatic methods used during the experiments: adaptations, storytelling, role-play, improvisation, reflection, and evaluation, helped the students in the textual interpretation and understanding of the lesson. The study recommends the adoption of participatory techniques to make classroom teaching an enjoyable experience for the teacher and the student.
Ekstraksi Gelatin Sisik Ikan Nila (Oreochromis spp.) dengan Variasi Konsentrasi Asam Sitrat dan Waktu Demineralisasi
Authors: Mufida Siti Nur , Herdyastuti Nuniek
Published: August 2022

Tingginya konsumsi ikan nila di masyarakat dapat menyebabkan banyaknya jumlah limbah sisik ikan nila yang dihasilkan. Limbah sisik ikan tersebut dapat masih dimanfaatkan dengan pengolahan lebih lanjut menjadi gelatin. Gelatin didapatkan melalui hidrolisis parsial protein kolagen yang terdapat pada sisik ikan. Penelitian ini bertujuan untuk mengetahui efek perbedaan konsentrasi asam sitrat serta waktu demineralisasi terhadap jumlah gelatin sisik ikan nila. Metode yang digunakan untuk mendapatkan gelatin yaitu degreasing, demineralisasi, ekstraksi, pengeringan, serta penggilingan. Pengujian mutu gelatin mencakup rendemen, kadar air, kadar abu, pH, dan gugus fungsi. Identifikasi gugus fungsi gelatin dilakukan menggunakan instrumen PerkinElmer Spectrum IR ES Version 10.6.2. Variasi konsentrasi asam sitrat yang ditambahkan adalah 1,5 – 6% dan waktu demineralisasi selama 12 – 72 jam. Hasil yang diperoleh menunjukkan gelatin paling banyak dihasilkan pada konsentrasi asam sitrat 6% dan lama waktu demineralisasi 72 jam. Rendemen yang dihasilkan sebesar 3,84%, kadar air sebesar 8,58%, kadar abu sebesar 1,44%, pH sebesar 4,5 serta memiliki gugus fungsi O-H, N-H, O-H bending, serta C=O yang memiliki kemiripan dengan gelatin komersial. Sehingga dapat disimpulkan bahwa gelatin terbaik dihasilkan dengan konsentrasi asam sitrat 6% dengan waktu demineralisasi 72 jam.
Manifestos and Voting Behavior in Third-Wave Democracies: Evidence from Ghana
Authors: George Ayuune Akeliwira  , Dr. Isaac Owusu-Mensah
Published: August 2022

Custom to pluralistic societies in emergent democracies, political mythology holds that since Ghana's Fourth Republic's inception, electoral outcomes have been fundamentally determined by ethno-political identification and other social cleavages to political parties. However, despite the potential influence of party manifesto contents in determining electoral outcomes, very little is known about the value of party manifestos in shaping voting behavior in the history of elections in the Fourth Republic. This is unfortunate because such knowledge can inform both the academic study of electoral politics and voting behavior. This article, rooted in the classical work on economic voting at both the individual and aggregate levels, presents original results from interviews with voters who participated in all the three recently held elections under study. Through interviews with 11,600 respondents from 116 constituencies and across all 16 regions, the study finds that the voting pattern in recent elections is not consistent with the popular ethno-social dynamics of Ghana's electoral politics. The results imply that party identification remains a significant determinant of voting decisions; nonetheless, the manifesto contents of political parties have become pivotal in shaping voting behavior rather than voting patterns based on socio-psychological notions and political party alignments. It concludes that voter inducement (kind or cash) in election periods is less relevant in structuring voting behavior. Further, it concludes that unless a major realignment occurs, electorates prefer a party with policies that maximize their utilities or will lead to the most considerable average benefit, as there is no reason to vote for a policy with idiosyncratic benefits or values. Thus, parties' policy blueprints or manifesto contents have become strong mobilizers and key determining factors for voters. As such, political parties need to invest in developing concrete policy programs that resonate with the citizenry to spur successful electoral outcomes.
The Effect of Implementing STEAM and 4Dframe Learning in Developing Students’ Computational Thinking Skills
Authors: Suhardi Rio Mardani , Utama Gusnandar Yoga
Published: August 2022

Computational thinking skills have been a popular term for teachers worldwide, and PISA 2022 will become the first PISA in evaluating them. Computational thinking helps students enhance their potential in contributing to other disciplines. However, students’ computational thinking skills at SMP Negeri 8 Batam were low. In overcoming the problem, the teacher employed STEAM learning as an alternative approach in stimulating students’ computational thinking skills. A teaching aid, named 4Dframe, was utilised to support the STEAM-based teaching. The objective of this action research study is to illustrate the effect of employing STEAM approach and the 4Dframe as the teaching assistance in developing students' computational thinking skills. The study involved 40 students of 9th grade in SMP Negeri 8 Batam, Indonesia. Three STEAM activities incorporating Warka water tower, Batam-Bintan straw bridge, and planting machine were performed in eight online meetings. In each activity, the students administered decomposition, abstraction, pattern recognition, and algorithm as the cornerstones of computational thinking. The data were gathered through observational forms during the learning and test to evaluate students’ computational thinking skills. The results present that 73% and 88% of students acquired the minimum score for the computational thinking post-tests on the first and second cycle respectively. Although sample and methodology limitations prevent any claim to generalisation, this learning strategy could be implemented as an alternative for conducting mathematics learning activities in elevating students’ computational thinking skills with students in similar contexts.
Enabling positive practice environments for women in science and education with FIPWiSE toolkit
Authors: Uzman Nilhan , Selcuk Aysu , Pehlivanovic Belma , Balta Ecehan , Hammoudi Halat Dalal , Etukakpan Alison , Masyitah Nisa , Thompson Claire , Duggan Catherine
Published: August 2022

Positive practice environments (PPEs) support the recruitment and retention of employees, enable the delivery of high-quality work outcomes, and benefit society as a whole. It is necessary to provide equal rights, obligations, equal treatment, and opportunities for all genders according to their needs to achieve gender equity and PPEs in workplaces. FIP developed the FIPWiSE (the FIP women in science and education initiative) toolkit for positive practice environments for women in science and education to support and enable them by building on the World Health Professional Alliances (WHPA) PPE campaign. FIP is a founding member of the WHPA and used the toolkit as a basis to describe and identify factors that enable PPEs from a pharmaceutical science and pharmacy education perspective. The toolkit provides a set of possible solutions related to women in science and education for individuals, employers, institutions, and policymakers, as well as real-life examples, perspectives, and good practice implementations and suggestions from women from all around the world.
ALTRUISM & SOCIAL INTIMACY AMONG FIRST-BORN AND
SECOND-BORN EMERGING ADULTS
Authors: Selsha V Rajan  , Deepa Mariam Ninan  , Amala Thomas  , Pavithra Lekshmi  , Krupa Dinah Mathews
Published: August 2022

High-quality interactions and relationships with others, such as intimacy with a spouse, friends, or
family members, are referred to as social intimacy, and it can help predict mental health. Altruism is
described as a motivational condition that a person holds with the intention of enhancing the
wellbeing of another person. The purpose of the current study is to determine whether there is a
substantial difference between first and second born emerging adults in terms of social intimacy and
altruism. The sample included 126 college students who were emerging adults, of whom 63 were
firstborn and another 63 were second-born. Convenient sampling techniques were used to gather the
sample. Miller's Social Intimacy Scale and Altruism Scale were the instruments employed. Using
SPSS, the data that were gathered were examined. The results demonstrated that there is a 0.01 level
significant difference in altruism between first and second born emerging adults. When compared to
first-born emerging adults, second-born emerging adults had more altruism. The analysis of the mean
values revealed that first-born and second-born emerging adults differed in their levels of social
intimacy. However, the variation is insignificant. Social intimacy was shown to be higher among
second born than first born after analyzing the mean values.
A Web Based e-health Care Application for Brain Tumor Detection
and Analysis
Authors: Aswani. K  , D.Menaka
Published: August 2022

One of the most serious health issues in today's world is cancer. It may affect different parts of the
body and will be identified only in the last stages. One of such cancers is brain tumor. The
uncontrollable growth of tissues in the brain causes tumors, which reduces the life span of the
affected person. The current treatment method is based on the biopsy procedure. The medical
persons may decide different treatment procedures based on the biopsy report. The success of these
treatments in most cases depends on how early it can diagnose the tumor and start the medical
procedures. Here the authors propose an intelligent e-health application which will help people with
early detection of tumors. The author's application is web based and makes use of the possibilities
offered by Internet of Medical Things (IoMT). People with internet access can login to the
application and upload the MRI scan for diagnosis. The tumor detection and segmentation
procedure are based on deep learning. Another advantage of the proposed model is its periodic
updating capabilities. All the models will be periodically updated to provide the best results
possible. The uploaded data will be used for training the model only with the consent of the people
responsible. The authors hope this platform will give a new dimension of services towards ehealthcare services that improve the quality of medical services.
Deep Learning-Based Intelligent Analysis of Medical Big Data
Authors: Reenu Maria Binoy  , Parvathy Prakash  , Dayana Thomas  , Devika R Nath  , Gigi Joseph
Published: August 2022

Data-driven medical big data analysis methods have arisen as the times have demanded, assisting in
the intelligent identification of medical health. With the widespread use of computer technology,
medical health data has also expanded considerably. It is still challenging to evaluate medical big
data, nevertheless because of the heterogeneous format of the data, the large number of missing
records and the amount of noise. While deep learning constructs a hierarchical model by imitating
the human brain, traditional machine learning techniques are unable to efficiently harvest the rich
information included in medical big data. It boasts strong automated feature extraction, intricate
model building and effective feature expression among other significant features.
It is a deep learning technique that takes features from the original medical imaging data at every
level, starting at the lowest. For the purpose of intelligent illness identification and diagnosis, this
research builds a deep learning-based data analysis model for medical pictures and transcripts. The
model chooses and optimises model parameters using a vast amount of medical big data. It also
automatically picks up on the pathological analysis process used by doctors or medical researchers.
Finally, the model conducts disease judgement and effective decision-making based on the analysis
findings of the medical big data. The outcome of the trial demonstrate that the approach can evaluate
large amounts of medical data and achieve early illness detection. In addition, it may evaluate the
patient's physical health state based on their physical examination data and forecast their future risk
of contracting a certain disease. Greatly lower the workload for physicians or researchers in the
medical field and increase the effectiveness of their effort.
Air Pollution in mining Industries has very adverse effects on Human
Health, Flora, and Fauna, and proper assessment is needed around the
mining areas
Authors: Dharmendra Kumar  , Navin Singh Rajput
Published: August 2022

The rapid development in India has resulted in rapid growth in the number of Heavy Motor
vehicles(HMV) and light motor vehicles(LMV). Automation and Demand in transportation have also
resulted in a tremendous increase in the number of vehicles in mining industries. In a few states, this has
doubled in the last decade. Mining activities contribute to the problem of air pollution directly or
indirectly. Rapid urbanization and the growth of motor vehicles impose a very serious effect on human
life and the environment in recent years. Heavy Motor vehicles in the mining industry, mining blasts,
and Open fires are more significant sources of air pollution and are main important contributors to carbon
dioxide (CO2), Carbon Monoxide(CO), Nitrogen dioxide(NO2), Hydrogen Sulphide, Methane, and other
greenhouse gases. These are the most dangerous gases in the mining industry and not only in the mining
industry but also to the mining surrounding areas and other areas. The most important emissions during
coal mining, transportation, and active mine fires are Particulate matter (PM), Sulphur dioxide (SO2),
Nitrogen dioxide (NO2), and heavy metals. These air pollutants deteriorate air quality and ultimately
affect human health, fauna, and the flora in and around coal mining areas. Air pollution is a serious
environmental health threat to humans, flora, and fauna. Adverse effects range from nausea, difficulty in
breathing and skin irritations, birth defects, blood, lung cancer, etc. in and around the coal mining areas.
All these situations indicate that air pollution in mining areas is becoming an affected problem in the
Indian context and also in the rest of the world. The present paper includes a study done on the Jharia
coalfield. Due to mining, the criteria most affected are air, water, soil, vegetation, agricultural land, and
topography. There is an essential need to build up a healthy environment and increase the level of
research and awareness around the world. The present paper is a study of an increase in air pollution in
India, especially in mining areas, and its effect on human health, fauna, and flora. The conventional coal
fuel cycle is among the most destructive activities on the earth, threatening health, polluting the air, and
water, harming the land, and contributing to global warming, and environmental temperature rise. The
major sources contributing to air pollution in coal mining-related activities and active mine fires and
secondarily vehicular emissions, while windblown dust through unpaved roads also contributed to some
extent. It is therefore important that a systematic study on coal mining areas is carried out to assess the
effects of coal mining on the particular region and its environment, including, cultural, historical, and
social aspects.