Abstract A large plate like structures can undergo some severe ruptures because of the stress created by the mass and shape. Ruptures are regularly started by surface cracks. For this aim, it is important to evaluate brutality of the...
moreAbstract A large plate like structures can undergo some severe ruptures because of the stress created by the mass and shape. Ruptures are regularly started by surface cracks. For this aim, it is important to evaluate brutality of the noticeable cracks, by constant nondestructive assessments. In this work, a novel method for surface crack depth estimation based on Rayleigh waves by electromagnetic acoustic transducers (EMATs) is introduced. The method is based on a position-time (P-T) graph for direct transmitted Rayleigh waves between fixed transmitter and uniformly movable receiver on surface of the specimen. The process is repeated on different center frequencies both in the experiment as well as in two-dimensional finite element method simulation on steel plates. One of the specimens was without crack while the other one holds surface cracks with the depth ranging from 3–6 mm. Results obtained from simulation and experiment were significant to estimate crack depth with a maximum error of 7.5%.
Abstrak: Tujuan pengabdian ini, memberikan pemahaman pada masyarakat DesaDoridungga untuk melakukan gerakan hidup bersih di era new normal sebagai langkah strategis untuk menekan penyebaran virus Covid-19. Metode yang digunakan dalam...
moreAbstrak: Tujuan pengabdian ini, memberikan pemahaman pada masyarakat DesaDoridungga untuk melakukan gerakan hidup bersih di era new normal sebagai langkah strategis untuk menekan penyebaran virus Covid-19. Metode yang digunakan dalam pengabdian ini adalah penyuluhan mengenai virus Covid-19, pembuatan hands sanitizer, pembagian masker dan pemasangan poster-poster ditempat-tempat umum untuk mengingatkan masyarakat dalam menerapkan protokol kesehatan. Hasil yang diperoleh, masyarakat memiliki pengetahuan mengenai virus Covid-19 lebih baik lagi dan dimana 85% warga Desa Doridungga telah menggunakan masker serta masyarakat dapat menerapkan pola hidup bersih dan sehat dengan selalu mencuci tangan menggunakan hand sanitizer yang telah dibuat ataupun dengan sabun yang telah disediakan ditempat-tempat umum dilingkungan Desa Doridungga.Abstract: The purpose of this service, to give understanding to the people of Doridungga Village to carry out the movement of clean life in the new normal era ...
Background The plant Culcasia angolensis (Araceae) has diverse ethnomedicinal uses, including the management of rheumatic pain, healing of cuts, dislocations, and bruises. Despite its potential therapeutic uses, the toxicity profile of...
moreBackground The plant Culcasia angolensis (Araceae) has diverse ethnomedicinal uses, including the management of rheumatic pain, healing of cuts, dislocations, and bruises. Despite its potential therapeutic uses, the toxicity profile of Culcasia angolensis has not been evaluated. This study assessed the sub-acute toxicity effects of Culcasia angolensis leaves extract (CAE). The phytochemical determination of the CAE was conducted as per the standard protocols. The median lethal dose (LD50) was determined using the Organization for Economic Cooperation and Development (OECD) 423 guideline. Besides, the sub-acute toxic effects of the CAE (125, 250, and 500 mg/kg) were investigated following administration of the CAE daily for 28 consecutive days as per the OECD 407 guideline. The weekly body weights were recorded. The animals were euthanized on the 29th day, and blood samples were obtained for haematological and biochemical investigations. The heart, kidney, liver, and lungs were colle...
Baiji thermal station supplied by heavy fuel HFO from Baiji refinery, while the gas station is operated by heavy fuel HFO and light fuel LFO, the first unit operates using LFO, the third unit operates using HFO. The results showed that...
moreBaiji thermal station supplied by heavy fuel HFO from Baiji refinery, while the gas station is operated by heavy fuel HFO and light fuel LFO, the first unit operates using LFO, the third unit operates using HFO. The results showed that the specific fuel consumption is reduced by rising the load, when the load is reduced to 20Mw s.f.c almost 0.765m3/Mw.hr this rate start to fall to become 0.35m3/Mw.hr when the unit operate near its maximum capacity for LFO, while the heavy fuel increases by 15% for the same number above. It’s correct that LFO is good but it is expensive which costs 1000$ per imported ton , in order to cover the load of 8000Mw for one year itcosts 1.92E+10$ for imported LFO ,9.6E+10$ for the local LFO, and 2.8E+9$ for HFO, the difference is obvious which is ten times the total cost. Also the studied performance of the gas units showed that the net is experience from a downturn of frequency along 24hr except in the let hours at night, while the allowed frequency is 50...
Students of the health sciences are the future frontliners to fight pandemics. The students’ participation in COVID-19 response varies across countries and are mostly for educational purposes. Understanding the determinants of COVID-19...
moreStudents of the health sciences are the future frontliners to fight pandemics. The students’ participation in COVID-19 response varies across countries and are mostly for educational purposes. Understanding the determinants of COVID-19 vaccine acceptability is necessary for a successful vaccination program. This study aimed to investigate the factors associated with COVID-19 vaccine acceptance among health sciences students in Northwest Nigeria. The study was an online self-administered cross-sectional study involving a survey among students of health sciences in some selected universities in Northwest Nigeria. The survey collected pertinent data from the students, including socio-demographic characteristics, risk perception for COVID-19, and willingness to accept the COVID-19 vaccine. Multiple logistic regression was used to determine the predictors of COVID-19 vaccine acceptance. A total of 440 responses with a median (interquartile range) age of 23 (4.0) years were included in th...
Background Pain, inflammation and fever are serious conditions that are associated with various disease conditions. In modern medicine, non-steroidal anti-inflammatory drugs (NSAIDs), opioids together with corticosteroids have been...
moreBackground Pain, inflammation and fever are serious conditions that are associated with various disease conditions. In modern medicine, non-steroidal anti-inflammatory drugs (NSAIDs), opioids together with corticosteroids have been considered to manage algesia and inflammation-related conditions. However, these conventional drugs are not affordable, not readily available, particularly to people living in rural areas in developing nations. Besides, they are associated with undesirable pharmacological actions. Generally, medicinal plants have been employed to manage various ailments. In Northern-Nigeria, the leaves of Culcasia angolensis (Araceae) are used traditionally to manage pain, fever and inflammation. However, scientific data validating its folkloric claim in treating pain and inflammatory-related abnormalities are not available. Hence, the current study aims to validate the antinociceptive, anti-inflammatory and antipyretic potentials of the methanol leaf extract of Culcasia ...
Background The plant Hymenocardia acida (Euphorbiaceae) is utilized as herbal preparation against diarrhoea, dysentery and other diseases. We aimed to determine the antidiarrhoeal potentials of Hymenocardia acida (MEHA) stem bark in vivo...
moreBackground The plant Hymenocardia acida (Euphorbiaceae) is utilized as herbal preparation against diarrhoea, dysentery and other diseases. We aimed to determine the antidiarrhoeal potentials of Hymenocardia acida (MEHA) stem bark in vivo and in vitro. Preliminary phytochemical contents, as well as the acute toxicity effect of the extract, were investigated based on standard experimental methods. The antidiarrhoeal properties of the MEHA at 150, 300 and 600 mg/kg were studied against diarrhoea induced by castor oil, intestinal fluid accumulation, as well as intestinal movement tests using distilled water (10 ml/kg) and loperamide/atropine sulphate as the control groups. Besides, the in vitro effects of the extract (8 × 10−2–640 × 10−2 mg/ml) on the rabbit jejunum and guinea-pig ileum were evaluated. Results Phytochemical screening showed alkaloids, glycoside, saponins, tannins, triterpenes, flavonoids and steroids in the MEHA. The median lethal dose (LD50) of the MEHA after oral admi...
Background Medicinal plants are used to manage pain and inflammatory disorders in traditional medicine. A scientific investigation could serve as a basis for the determination of molecular mechanisms of antinociceptive and...
moreBackground Medicinal plants are used to manage pain and inflammatory disorders in traditional medicine. A scientific investigation could serve as a basis for the determination of molecular mechanisms of antinociceptive and antiinflammatory actions of herbal products. In this work, we used both artificial intelligence (AI) based models inform of adaptive neuro-fuzzy inference system and artificial neural network (ANN) as well as a linear model, namely; stepwise linear regression in modelling the performance of four different inflammatory biomarkers namely; interleukin (1L)-1β, 1L-6, tumour necrosis factor (TNF)-α and prostaglandin E2 (PGE2). This modelling was done using number of abdominal writes, the reaction time of paw licking in mice and paw oedema diameter as the input variables. Results Four different performance indices were employed, which are determination coefficient (DC), root mean squared error (RMSE), mean square error (MSE) and correlation co-efficient (CC). The result...
Deteksi objek berbasis pengolahan citra digital pada kendaraan sangat penting untuk diterapkan dalam membangun sistem pengawasan atau sebagai metode alternatif dalam mengumpulkan data statistik untuk pengambilan keputusan rekaya lalu...
moreDeteksi objek berbasis pengolahan citra digital pada kendaraan sangat penting untuk diterapkan dalam membangun sistem pengawasan atau sebagai metode alternatif dalam mengumpulkan data statistik untuk pengambilan keputusan rekaya lalu lintas yang efisien. Pada penilitian ini, dibuat sistem deteksi kendaraan berbasis video lalu lintas untuk jenis kendaraan tertentu dengan menggunakan Haar Cascade Classifier dan estimasi kecepatan kendaraan dilakukan dengan menghitung perbedaan waktu pada Region of Interest (ROI) yang telah ditentukan dan hasilnya akan ditampilkan pada Radar Speed Design. Pengujian dilakukan dengan 5 video pengujian. Hasil yang didapatkan dari deteksi kendaraan yaitu nilai rata-rata recall 0.988 dan presisi 0.97 dan dari perhitungan kecepatan didapatkan nilai Mean Squared Error (MSE) yaitu 0,6.
This research aims to predict the growth of the number of poor people in every district and city in NTB Province of Indonesia for the next 10 years by using Holt exponential smoothing method. This type of research is quantitative research...
moreThis research aims to predict the growth of the number of poor people in every district and city in NTB Province of Indonesia for the next 10 years by using Holt exponential smoothing method. This type of research is quantitative research with input data used over the last 19 years with a measure of the goodness of models namely MSE, MAD, and MAPE. Based on the optimization results obtained the smallest parameter at α of 0.9 and β of 0.1, an average value MSE of 278005053.7, MAD of 9992.28222, and MAPE of 8.9374 Optimization results also provide information that the increase in the growth of the average poor population of 70206.6604 Certainly this result can be used as a guideline by the government in determining steps and responding to rapid response strategies in dealing with this poverty problem.
A study on the effect of different doses of Ovatide hormone suspended in saline on the breeding performance of Clarias anguillaris and Clarias gariepinus was carried out. The experiment was conducted in a 2x5 factorial experiment in a...
moreA study on the effect of different doses of Ovatide hormone suspended in saline on the breeding performance of Clarias anguillaris and Clarias gariepinus was carried out. The experiment was conducted in a 2x5 factorial experiment in a Completely Randomized Design (CRD) at the Hatchery Unit of the Department of Fisheries and Aquaculture, Usmanu Danfodiyo University, Sokoto. Species and hormone dilutions constituted the factors; specie having 2 levels (C. anguillaris and C. gariepinus) and ovatide hormone suspended in saline at 5 levels (0%, 25%, 50%, 75% and 100%). The result showed that species levels did not significantly (p>0.05) affect the breeding performance in all the parameters observed. However, fertilization rate, hatching rate and survival rate were significantly affected (p 0.05) on egg weight, spawning fecundity and relative fecundity. It could be concluded from this study that the synthetic hormone ovatide can effectively be suspended in saline at different dilution ...
This paper investigates the short-run and long-run relationships between three main macroeconomic variables in Oman using the Johansen multivariate co-integration techniques as well as the stationary VAR for the period between 1971 and...
moreThis paper investigates the short-run and long-run relationships between three main macroeconomic variables in Oman using the Johansen multivariate co-integration techniques as well as the stationary VAR for the period between 1971 and 2013. The results indicate that there is a long-run relationship between these three macroeconomic variables; the real GDP, the real government expenditure and the real oil revenues. The estimated coefficients for the real oil revenues and the real government expenditure are correctly signed and statistically significant at 5% level. Both variables depict positive relationship with GDP which are 0.672 and 0.872 respectively. The impulse response functions and the variance decomposition from the stationary VAR show that these variables are very important to the short-run dynamics of the Omani economy. Overall, government expenditure appears to be the main source for economic growth in long-run, and in short run variations in government expenditure are ...
This study aims to determine the Implementation of Higher Education Financing in Indonesia which focuses on the accountability and transparency of higher education budgets management. The survey research was conducted at universities...
moreThis study aims to determine the Implementation of Higher Education Financing in Indonesia which focuses on the accountability and transparency of higher education budgets management. The survey research was conducted at universities spread across the Sumatra and Java islands from October 2012 to October 2013, and proportionally selected 8 universities as sampling which were categorized as Applied Science-Technology and Educational Universities based. Data were analyzed by descriptive statistic technique and narrative descriptive technique using an approach popularized by Miles and Huberman. The study concluded that: 1) planning and budgeting system of higher education is carried out by centralization system, making it relatively easy for coordinating and consolidating policies and implementing higher education budget, 2) college policy autonomy in the management and implementation of Tri Darma of Higher Education authorizes Head of Higher Education to specify the orientation of uni...
Kompetensi yang dimiliki oleh setiap pendidik (guru) akan menunjukkan kualitas pendidik dalam menjalankan profesinya. Kompetensi tersebut akan terwujud dalam bentuk penguasaan pengetahuan dan profesionalisme. Sejauh ini belum ada...
moreKompetensi yang dimiliki oleh setiap pendidik (guru) akan menunjukkan kualitas pendidik dalam menjalankan profesinya. Kompetensi tersebut akan terwujud dalam bentuk penguasaan pengetahuan dan profesionalisme. Sejauh ini belum ada sistem yang bisa digunakan untuk menentukan apakah seorang pendidik telah memiliki kompetensi atau belum seperti yang dituangkan dalam UUGD 2005 yaitu kompetensi pedagogik, kepribadian, sosial, dan profesional sesuai dengan indikatornya. Oleh karena itu, penelitian ini mengembangkan sebuah sistem berbasis WEB dan bersifat online untuk menentukan tingkat kompetensi pendidik. Sistem ini dirancangbangun menggunakan fuzzy inference system yang merupakan salah satu metode dalam bidang logika fuzzy. Tahapan dalam membangun sistem ini adalah fuzzifikasi, inferensi, dan penentuan output. Sistem online ini mempermudah bagi pemakai (guru) untuk mengoperasikan di mana saja dan kapan saja sebagai bahan ...
This research work is aimed at designing of high efficiency multilevel diode clamped inverter. It would cover diode clamped multilevel inverter with particular reference to the comparison of high level and low level inverter using...
moreThis research work is aimed at designing of high efficiency multilevel diode clamped inverter. It would cover diode clamped multilevel inverter with particular reference to the comparison of high level and low level inverter using efficient modulation method (sinusoidal pulse width modulation). The main theme of this research is to obtain a pure sinusoidal waveform of high quality having minimum harmonics that can be utilized for both industrial purposes and to sensitive domestic loads. The proposed design besides considering high quality of the output waveform of multilevel diode clamped inverter, the problems regarding multilevel inverter design has been given more consideration high voltage stresses across switching devices. The voltage stresses issues have been resolved with DC link voltage equally distributed among capacitors in multilevel inverter. Simulation results for different level inverters both low level (5, 7, 9, level) and high levels (11, 13, 15) are used as a refere...
This paper investigates whether a country’s level of income matters to the effectiveness of institutions in fostering economic growth. The institutional variables are represented by democracy, corruption levels, and armed conflicts. The...
moreThis paper investigates whether a country’s level of income matters to the effectiveness of institutions in fostering economic growth. The institutional variables are represented by democracy, corruption levels, and armed conflicts. The countries in the data-set are divided into high-, middle- and low-income countries based on the World Bank criteria. The overall results indicate that institutional variables have offsetting effects on economic growth. The performance of these variables appears to have been influenced by the countries’ level of income. Labour, capital and human capital are found to be positive and significant variables for economic growth, irrespective of whether the countries are in high-, middle- and low-income groups. On the contrary, corruption affects GDP negatively in high- and middle-income groups, but positive, although insignificant in low-income countries. Democracy has a mixed effect on economic growth and largely negative in high- and low-income countries...
This study tries to discuss the relationship between sectoral developments and economic growth. To be more specific, by examining a panel of the regional data in Indonesia (province level) over the 26 years time span (1983-2009). This...
moreThis study tries to discuss the relationship between sectoral developments and economic growth. To be more specific, by examining a panel of the regional data in Indonesia (province level) over the 26 years time span (1983-2009). This study investigate whether the specialization in certain sector facilitates economic growth and whether the specialization (in a particular sector) contributes to regional economic development. This study finds that specialization in sectors such as agriculture and services has a negative impact on economic growth. However, specialization in manufacturing has a positive effect on economic growth in Indonesia. Furthermore, local specialization in economic sectors has different effects. Local specialization in agriculture and services sector will harm regional development. On the other hand, local specialization in manufacture has positive impact to economic growth. Our findings suggest that for a balanced regional development, the policy authority should...
Background and objective: Plant-based fermented foods containing favorable micro-organisms have been used to improve diets. Starter microorganisms may produce toxic compounds that are hazardous to consumers. Brine shrimp lethality test is...
moreBackground and objective: Plant-based fermented foods containing favorable micro-organisms have been used to improve diets. Starter microorganisms may produce toxic compounds that are hazardous to consumers. Brine shrimp lethality test is a convenient and appropriate assay to check toxicity of samples. The aim of this study was to investigate toxicity of pasteurized coconut beverages at 70°C, 80°C and 90°C for 25, 15 and 5 min, respectively, and unpasteurized coconut beverages fermented by Lactococcus lactis against Artemia salina nauplii. Material and methods: After extraction of coconut beverages fermented by Lactococcus lactis using methanol, cytotoxicity was assessed using (lethality concentration). Newly 10 hatched Artemia salina nauplii were transferred into various concentrations (in replicates) of the fermented sample extracts. After 24 h, survived Artemia salina nauplii were counted and lethality concentration was assessed. The brine shrimp lethality test was used to invest...
ETHNOPHARMACOLOGICAL RELEVANCE The plant Combretum hypopilinum Diels (Combretaceae) is used in traditional medicine for the treatment of diarrhoea and other diseases in Africa. Previously, the antidiarrhoeal activity of its methanol leaf...
moreETHNOPHARMACOLOGICAL RELEVANCE The plant Combretum hypopilinum Diels (Combretaceae) is used in traditional medicine for the treatment of diarrhoea and other diseases in Africa. Previously, the antidiarrhoeal activity of its methanol leaf extract was reported. However, the mechanism(s) responsible for this activity is yet to be evaluated. AIM This study aimed to elucidate the possible mechanism(s) of antidiarrhoeal activity of methanol leaf extract of Combretum hypopilinum (MECH) in mice. MATERIALS AND METHODS Phytochemical screening and acute toxicity study were conducted according to standard methods. Adult mice were orally (p.o) administered distilled water (10 ml/kg), MECH (1,000 mg/kg) and loperamide (5mg/kg). The probable mechanisms of antidiarrhoeal activity of MECH were investigated following pretreatment with naloxone (2 mg/kg, subcutaneously), prazosin (1 mg/kg, s.c), yohimbine (2 mg/kg, intraperitoneally), propranolol (1 mg/kg, i.p), pilocarpine (1 mg/kg, s.c) and isosorbide dinitrate (150 mg/kg, p.o) 30 minutes before administration of MECH (1,000 mg/kg). The mice were then subjected to castor oil-induced intestinal motility test. RESULTS The oral median lethal dose (LD50) of MECH was found to be higher than 5,000 mg/kg. There were significant (p<0.05) decrease in the charcoal movement in the mice treated with the MECH (1,000 mg/kg) and loperamide (5 mg/kg). The pretreatment of the mice with naloxone, prazosin and propranolol each significantly (p<0.05) reversed the antidiarrhoeal activity produced by MECH. CONCLUSION The results obtained in this study suggest the probable involvement of opioidergic and (α1 and β)-adrenergic systems in the antidiarrhoeal activity of the methanol leaf extract of Combretum hypopilinum.
Background The plant Olax subscorpioidea Oliv (Olacaceae) is a shrub that is widely available in Africa. It has been used in traditional medicine to treat various diseases including asthma, pain, inflammation, gastrointestinal and central...
moreBackground The plant Olax subscorpioidea Oliv (Olacaceae) is a shrub that is widely available in Africa. It has been used in traditional medicine to treat various diseases including asthma, pain, inflammation, gastrointestinal and central nervous system (CNS) disorders, cough, diabetes mellitus, cancer, infectious diseases, hepatic diseases, and many other diseases. Several phytochemical and pharmacological investigations were conducted on this plant. However, comprehensive information on this medicinally important plant is not available in the literature. Therefore, in this review, we aimed to provide comprehensive and critical information on all the reported ethnomedicinal uses, phytochemistry, pharmacological activities, and potential toxicity of Olax subscorpioidea to highlight its therapeutic potentials based on traditional usage and identify research gaps as a basis for further investigations to develop novel therapeutic compounds. Main body The available information about the...
The aim of the present study was to assess the effects of a hyperlipidic diet set before puberty in male Wistar rats&#39; gonadal weights and testicular functions. Males rats were used for the study, they were randomly distributed...
moreThe aim of the present study was to assess the effects of a hyperlipidic diet set before puberty in male Wistar rats&#39; gonadal weights and testicular functions. Males rats were used for the study, they were randomly distributed into 2 groups: Control Group (CG: standard diet (normolipidemic) and the second: Intervention Group (IG: hyperlipidemic diet), after 7 days of experimentation , 3 rats were sacrificed per week, blood samples were collected and level of HDL, LDL and triglyceride were analyzed. A significant reduction (p&lt;0.05) in testicular weight in the control group was observed compared with the hyperlipidic diet group, triglyceride levels showed a consistent change over the weeks of the study, HDL levels showed a consistent change during the 5 weeks of the study, Photomicraphie of the testicles of Wistar rats in the hyperlipid diet group for the first week showed Sertoli cell hyper-plasia ,during the second week microscopic examination showed significant testicular hypertrophy the microscopic examination during the fifth week showed hyperplasia of the seminal vesicle characterized by an increase in the number of glandular epithelial cells. The proliferating epithelium may form papillary structures with supporting stroma and with extension into the glandular lumen and total absence of sperm cells. Obesity is associated with many metabolic abnormalities. It has been found that these metabolic abnormalities induce disorders of spermatogenesis. Our results show that the hyperlipidic diet affects the gonads significantly with hypertrophic testes, the presence of hyperplastic seminiferous tubes, as well as a fine basement membrane.
This study aims to determine the completion of student learning in procedural fluency through the Brain Based Learning model, along with their procedural fluency in flexibility, efficiency and accuracy in quadrilateral 2D shapes. It...
moreThis study aims to determine the completion of student learning in procedural fluency through the Brain Based Learning model, along with their procedural fluency in flexibility, efficiency and accuracy in quadrilateral 2D shapes. It employed sequential explanatory research design. The research subjects were 7th graders (VII B) at SMP Negeri 2 Sokaraja, academic year 2019/2020. The data collection technique was procedural fluency test for students on quadrilateral 2D shapes; and the data analysis technique was the z-test. Results showed that students’ procedural fluency through BBL achieved learning mastery. In terms of flexibility, students were able to solve procedural fluency test questions in two ways. Students could perform each step of the method in terms of efficiency; and in terms of accuracy, it was shown that results were repeated consistently. These findings implied that procedural fluency through BBL along with students’ flexibility, efficiency, and accuracy belong to th...
Senna alata (Linn) Roxb. plant is widely used to manage various infections in folkloric medicine. Methicillin-resistant Staphylococcus aureus (MRSA) infection continues to be a major global public health problem. This study aims to...
moreSenna alata (Linn) Roxb. plant is widely used to manage various infections in folkloric medicine. Methicillin-resistant Staphylococcus aureus (MRSA) infection continues to be a major global public health problem. This study aims to investigate the bioactive components of S. alata leaves active against MRSA. The leaves of S. alata were sequentially extracted and fractionated using standard methods and screened for activities against MRSA. The diethyl ether active thin layer chromatography (TLC) spot was subjected to infrared (IR) and gas chromatography-mass spectroscopic (GC-MS) studies. The aqueous extract and diethyl ether fraction of S. alata leaves elicited the highest activity against the MRSA. The GC-MS analysis of the fraction produced 15 eluates; only the sub-fraction 13 was effective. The TLC analysis of the sub-fraction 13 revealed three spots; only the second spot produced activity. The GC-MS result of the spot showed six peaks. The spectral results for peak 3 match the da...
This article describes the dataset for the elucidation of the possible mechanisms of antidiarrhoeal actions of methanol leaves extract of Combretum hypopilinum (Diels) Combretaceae in mice. The plant has been used in traditional medicine...
moreThis article describes the dataset for the elucidation of the possible mechanisms of antidiarrhoeal actions of methanol leaves extract of Combretum hypopilinum (Diels) Combretaceae in mice. The plant has been used in traditional medicine to treat diarrhoea in Nigeria and other African countries. We introduce the data for the antidiarrhoeal activity of the methanol leaf extract of Combretum hypopilinum at 1,000 mg/kg investigated using charcoal meal test in mice with loperamide (5 mg/kg) as the standard antidiarrhoeal agent. To elucidate the possible mechanisms of its antidiarrhoeal action, naloxone (2 mg/kg), prazosin (1 mg/kg), yohimbine (2 mg/kg), propranolol (1 mg/kg), pilocarpine (1 mg/kg) and isosorbide dinitrate (150 mg/kg) were separately administered to different groups of mice 30 minutes before administration of the extract. Each mouse was dissected using dissecting set, and the small intestine was immediately removed from pylorus to caecum, placed lengthwise on moist filter paper and measured the distance travelled by charcoal relative to the length of the intestine using a calibrated ruler in centimetre. Besides, the peristaltic index and inhibition of charcoal movement of each animal were calculated and recorded. The methods for the data collection is similar to the one used to investigate the possible pathways involved in the antidiarrhoeal action of Combretum hypopilinum in mice in the research article by Ahmad et al. (2020) “Mechanisms of Antidiarrhoeal Activity of Methanol Leaf Extract of Combretum hypopilinum Diels (Combretaceae): Involvement of Opioidergic and (α1 and β)-Adrenergic Pathways” (
https://doi.org/10.1016/j.jep.2020.113750) [1]. Therefore, this datasets could form a basis for in-depth research to elucidate further the pharmacological properties of the plant Combretum hypopilinum and its bioactive compounds to develop standardized herbal product and novel compound for management of diarrhoea. It could also be instrumental for evaluating the plant's pharmacological potentials using other computational-based and artificial intelligence approaches, including predictive modelling and simulation.
Exploring the non-dispersive property, the fundamental shear horizontal mode SH0 can be widely used in the detection and monitoring of defects in plate like structures. To combine an approach of ultrasonic guided waves and a tomographic...
moreExploring the non-dispersive property, the fundamental shear horizontal mode SH0 can be widely used in the detection and monitoring of defects in plate like structures. To combine an approach of ultrasonic guided waves and a tomographic technique by adapting a reconstruction algorithm for the probabilistic inspection of damage (RAPID) using a double-turn coil omnidirectional shear horizontal wave magnetostrictive patch transducer (OSH-MPT) with three different kinds of array arrangements is presented here for imaging. SH0 can propagate in a composite material through bonding double-turn coil OSH-MPT. To get the information about a damage, RAPID can be utilized based on direct wave of SH0 mode. It is advantageous to monitor a composite plate where the velocity of direct waves depends on the propagation direction. In this paper, a surface simulated defect, using a small cylinder, in a composite material is quantitatively evaluated by using shear horizontal mode tomographic approach. Using modified approaches, to eliminate the effect of uneven probability distribution of the array (UPDA) in RAPID, imaging is obtained. Three different array setups of transducers have been tested to monitor the influence on the images. It has been presented that the image generated by the proposed approach with the optimal transducer array and shape factor, β, calculation method has great influence on the real defect shape. To improve the imaging results threshold is selected based on the receiver operating characteristic (ROC) curve. The proposed approach can be used to detect, locate and image the surface defects in plate like structures.
Surface crack in the plate like structures is one of the initial indication for its degradation. This indication could be very critical and requires some serious maintenance because this continuous exposure will lead to a severe damage to...
moreSurface crack in the plate like structures is one of the initial indication for its degradation. This indication could be very critical and requires some serious maintenance because this continuous exposure will lead to a severe damage to the safety and even to environment. To evaluate the structural performance and safety, a regular monitoring of such cracks is needed. A quantitative characterization method is utilized for the estimation of surface groove width instead of depth or length, which is previously done by many researchers, using Rayleigh waves in pitch-catch mode using electromagnetic acoustic transducers (EMATs). The method employs the experimentally determined reflection coefficient and transmission coefficient of Rayleigh waves scattered at a surface groove by a number of varying widths, which are compared to the reference curves, obtained from two-dimensional finite element method (2D-FEM) simulations for the same groove width as used in experiments. A good relation ...
Handover (HO) technique in LTE networks suffers from Ping-pong movement. Ping-pong HO can reduce the quality of the mobile user’s connection and increases the numbers of handovers which in turn raises the network load and generally...
moreHandover (HO) technique in LTE networks suffers from Ping-pong movement. Ping-pong HO can reduce the quality of the mobile user’s connection and increases the numbers of handovers which in turn raises the network load and generally degrades the network performance. The work aims to present a novel approach to reduce the undesirable effects of ping-pong HO in LTE Mobile Networks using timer. The study focused on the ping-ping phenomenon taking into account maintained the dropped calls rates at lowest levels. The optimal timer values are determined based on the width of overlapping area, user velocity and type of eNodeB. Analyzed results showed that the changes of overlapping area directly affect the timer values of the proposed algorithm. Optimal timer value should be selected precisely according to the width of the overlapping area, user velocity and timer value in order to reduce the ping-pong HO.