N-gram and k-nearest neighbour based igbo text classification model

The evolution in Information Technology has gone a long way of bringing Igbo, one of the major Nigerian languages evolved. Some online service providers report news, publish articles and search with this language. The advancement will likely result to generation of huge textual data in the language, that needs to be organized, managed and classified efficiently for easy information access, extraction and retrieval by the end users. This work presents an enhanced model for Igbo text classification. The classification was based on N-gram and K-Nearest Neighbour techniques. Considering the peculiarities in Igbo language, N-gram model was adopted for the text representation. The text was represented with Unigram, Bigram and Trigram techniques. The classification of the represented text was done using the K-Nearest Neighbour technique. The model is implemented with the Python programming language together with the tools from Natural Language Toolkit (NLTK). The evaluation of the Igbo text classification system performance was done by calculating the recall, precision and F1-measure on N-gram represented text. The result shows text classification on bigram represented Igbo text has highest degree of exactness (precision); trigram has the lowest level of precision and result obtained with the three N-gram techniques has the same level of completeness (recall). Bigram text representation technique is extremely recommended for any text-based system in Igbo. This model can be adopted in text analysis, text mining, information retrieval, natural language processing and any intelligent text-based system in the language.

Dr. Nkechi Ifeanyi-Reuben Dr. nkechi ifeanyi-reuben

The effects of severe hypobaric hypoxia and inhibition of hypoxia-inducible factor-1 (hif-1) on biomarkers of cardiac and skeletal muscle injury in rats

The goal of the present study was to investigate the molecular mechanisms that underlie heart andskeletal muscle damage in male Wistar rats weighing 200–250 g in response to a 3-h exposure to 180 mm Hg(5% O2) in the model of severe hypobaric hypoxia. It has been demonstrated that the level of the cardiac bio-marker troponin I in the blood plasma of rats exposed to severe hypobaric hypoxia for 3 h increased signifi-cantly compared to the control group, indicating myocardial injury. At the same time, the administration ofthe HIF-1α transcription factor inhibitor did not affect the plasma level of troponin I. In contrast, the releaseof the non-specific biomarker myoglobin into the bloodstream did not increase in response to hypoxia com-pared to the control animals. In addition, 24 h after the exposure to severe hypobaric hypoxia the serum myo-globin level was significantly lower in animals administered with the HIF-1α inhibitor topotecan than in ratsthat did not receive topotecan. Therefore, it may be assumed that the inhibition of the HIF-1α transcriptionfactor 10 min before exposure to severe hypobaric hypoxia reduces skeletal muscle damage. The mechanismsthat affect the adaptation of heart and skeletal muscles to hypoxia are discussed.

Даниил Федоров Даниил Федоров

Barriers affecting uptake of cervical cancer screening in low and middle income countries: a systematic review

BACKGROUND: Cervical cancer is the second‑most common cancer among women in the developing world and approximately 500,000 cases are diagnosed each year. In developed countries, cervical cancer (CCa) accounts for only 3.6% of newly diagnosed cancers. OBJECTIVE: The present study aims to identify the most effective barriers associated with CCa screening uptake in low and middle-income countries (L and MICs) and aid to adopt effective measures to overcome prevailing barriers to the attainment of CCa uptake in the community. MATERIALS AND METHODS: Health sciences electronic databases like MEDLINE, PubMed, Cochrane library, and Google Scholar were searched for studies published until August 2017. Keywords used for the search were ("cervical cancer screening"), ("barriers"), AND ("low income countries" OR "Middle income countries"). Articles were reviewed and data were extracted by using Mendeley Desktop Software (V‑1.17.10). Income-level classification of countries was done as per the World Bank 2017 report. Statistical software like SPSS‑V.23 and Medical‑V.14 were used for the statistical application. RESULTS: A total of 31 studies met the inclusion criteria with a total of 25,650 participants. The sample size of the included studies ranged from 97 to 5929 participants. Articles majorly reported data on participants from African region (51.6%) and minimally in the Western Pacific region (3.2%). Sampling methods among studies varied from convenience sampling‑12 (39.7%) to consecutive sampling‑1 (3.2%). Besides, two studies (6.5%) did not discuss their sampling procedures. It was observed that “Lack of information about CCa and its treatment” (Barrier of lack of knowledge and Awareness); “Embracement or shy” (Psychological Barrier); “Lack of time” (structural Barrier); and “Lack of family support” (Sociocultural and religious barrier) were the most commonly reported among all 22 barriers. CONCLUSION: There is a need of policies advancement of CCa screening programs by focusing on aspects of accessibility, affordability, CCa education, and the necessity of screening to improve screening uptake to control the CCa morbidity and mortality rate in L and MIC’s.

Nagarjuna narayanasetti

Development and validation of rp-hplc method for simultaneous estimation of levocloperastine fendizoate and chlorpheniramine maleate in their combined dosage form

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.

Prasanna Pradhan Prasanna pradhan

Application of amorphous zirconium (hydr)oxide/mgfe layered double hydroxides composite in fixed-bed column for phosphate removal from water

BACKGROUND AND OBJECTIVES: Fixed-bed column has been considered an industrially feasible technique for phosphate removal from water. Besides the adsorption capacity, the effectiveness of an adsorbent is also determined by its reusability efficiency. In this study, phosphate removal by a synthesized amorphous zirconium (hydr)oxide/MgFe layered double hydroxides composite in a fixed-bed column system was examined. METHODS: The effects of flow rate, bed height, phosphate concentration, solution pH, and adsorbent particle size on the phosphate adsorption ability were examined through a series of continuous adsorption experiments. The appropriate breakthrough curve models, phosphate adsorption from real anaerobic sludge and synthetic seawater, column regeneration and reusability, and adsorption mechanism were also investigated for practical application feasibility. FINDINGS: The results showed that the increased bed height and phosphate concentration, and reduced flow rate, pH, and adsorbent particle size were found to increase the column adsorption capacity. The optimum adsorption capacity of 25.15 mg-P/g was obtained at pH 4. The coexistence of seawater ions had a positive effect on the phosphate adsorption capacity of the composite. Nearly complete phosphate desorption, with a desorption efficiency of 91.7%, could be effectively achieved by 0.1 N NaOH for an hour. Moreover, the initial adsorption capacity was maintained at approximately 83% even after eight adsorption-desorption cycles, indicating that the composite is economically feasible. The high phosphate adsorption capacity of the composite involves three main adsorption mechanisms, which are electrostatic attraction, inner-sphere complexation, and anion exchange, where the amorphous zirconium hydr(oxide) on the surface of the layered double hydroxides likely increased the number of active binding sites and surface area for adsorption. CONCLUSION: The amorphous zirconium (hydr)oxide/MgFe layered double hydroxides composite, with its high adsorption capacity and superior reusability, has the potential to be utilized as an adsorbent for phosphorus removal in practical wastewater treatment. This study provides insights into the design of amorphous zirconium (hydr)oxide/MgFe layered double hydroxides composite for phosphorus removal and recovery in a practical system.

Professor J. Nouri Professor j. nouri

Impact of environment due to sars-cov-2 in india

Before the start of the SARS-CoV-2 (COVID-19) pandemic, the whole environment around us had been deemed very toxic to breathe in due to the amount of greenhouse gases that had been emitted over the centuries. The Earth faced rising temperatures, which in turn led to the melting of glaciers and rising of sea levels. Environmental degradation was happening fast due to the depletion of resources such as air, water and soil. But after the coronavirus lockdown (Talabandi) commenced, there have been changes in the environment. The lockdown still has a huge impact on people in India too. The halt of industrial production and traffic resulted in cleaner air and rivers. In India the first phase of the nationwide lockdown that began on March 24 followed by enforcement of a series of regulations had some evidences that the COVID-19 curve is flattening in the country's COVID-19 affected regions. There was a good chance Prime Minister Narendra Modi extended the lockdown (Talabandi) four times that ended on (Phase 1 (24 March-14 April)., Phase 2 (15 April-3 May)., Phase 3 (4 May-17 May) & Phase 4 (18 May-31 May). The paper focuses on different aspects of environmental impact due to SARS-CoV-2 in India.

Rina Kumari Rina kumari

Phytochemical evaluation & pharmacological screening of didymocarpus pedicellata and ashwagandha for antiurolithiatic activity

The kidney stones are one of the most widely spreading disorders in the world. The present study was undertaken to evaluate the efficacy of ethanolic extract of Didymocarpuspedicellata and Ashwagandha for its antiurolithiatic activity in rats. Urolithiasis was induced in adult male albino wistar rats by 0.75% of ethylene glycol for 28 days. The effect of the oral administration of the ethanolicextracts has been studied and is compared with the effect of oral administration of Cystone(Himalaya) as a standard on Wistar rat. Ethylene glycol feeding resulted in hyperoxaluria as well as increased renal excretion of calciumand phosphate. Supplementation with ethanolic extract of the plants significantly reduced the elevated urinary oxalate, showing a regulatory action on endogenous oxalate synthesis. Both the plant extract showed significant antiurolithiatic activity

Zeenath Banu Zeenath banu

Toenail fungal infection: a case report

Fungal infection of the nails (onychomycosis) is a common condition that is hard to cure. The fungus hidden in the nail is difficult to treat with antifungal medications, and infected nails take months to heal. Antifungal nail polish can occasionally be used to treat mild cases, but blood-stream-permeable medications are required to treat more serious infections. We need something better because even these are not always successful and can have negative side effects like skin rash or liver issues. Additionally, onycholysis (the separation of the nail plate) creates a moist environment that can encourage the growth of fungi. Moreover, immunosuppressive medication use may worsen onychomycosis. In this example, the diseased entity's clinical presentation in an adult patient was described.

Mediterranean Journal of Pharmacy and Pharmaceutical Sciences Mediterranean journal of pharmacy and pharmaceutical sciences

Biophysical and structural mechanisms of resistance against pod borer complex in pgeonpea - a review

Host plant resistance is an important tool for minimizing the losses in pigeonpea due to pod borer, Helicoverpa armigera (Hubner), spotted pod borer, Maruca vitrata (Geyer) and pod fly, Melanagromyza obtuse (Malloch) which are the most threatening hidden pests of pigeonpea crop. Resistant cultivars has a remarkable potential for use in integrated pest management programme. The biophysical, morphological and structural attributes of plants plays an important role in plant defense mechanisms. The glandular (type A and type B) and non-glandular (type A) trichomes on pods of top and middle canopy of the plant and pod wall thickness were associated with resistance to H. armigera, M. vitrata and M. obtusa whereas, the non-glandular lengthy (type C) trichomes and pod length were associated with susceptibility to the said insects. The expression of resistance to H. armigera, M. vitrata, and M. obtusa was associated with the high amount of fat, phenol and tannin content. Whereas, the higher amount of crude protein and total soluble sugar content were responsible for higher pod infestation.

DR. BABU LAL JAT Dr. babu lal jat

A study to assess the determinants of quality of life among adults during covid-19 pandemic in south india

Background: Quality of life (QOL) is an important determinant in assessing the health status. It includes physical, psychological, and social well being. The aim of this research was to identify the intrinsic and extrinsic factors of QOL; and the association of QOL with socio-demographic, anthropometric variables and lifestyle variables. Methods: This cross sectional study was conducted in Tamil Nadu among 327 adults during July 2020 through online using standardized WHOQOL-BREF tool to assess the quality of life along with socio-demographic variables, anthropometric variables and lifestyle variables. Principal component analysis method was used to identify the factors which influence the QOL of adults. The association between socio-demographic variables, anthropometric variables and lifestyle variables with quality of life was also assessed. Among the selected samples 165 were female and 162 were male. The structured questionnaire included Section A- socio-demographic variables such as age, gender, occupation, educational qualification, place of residence, marital status; Section B - anthropometric variables such as height, weight and BMI; Section C lifestyle variables such as type of diet and physical activity pattern; and Section D -consisted of Standardized WHO-BREF tool to assess the quality of life. Results: The identified intrinsic factors include Life style approach, Emotional stability and Health status; Safety & accomplishment, Financial support with societal information were identified as extrinsic factors. These factors played an influential role in QOL of the adults during pandemic crisis. The association between the type of residence (p=0.001), occupation (p=0.000) and marital status (p=0.022) with QOL was highly significant at 1 % and 5 % respectively. Conclusion: The identified factors during covid-19 pandemic had influenced the quality of life domains namely physical health, psychological, social relationship and environment. Intrinsic factors were dependent on individual’s perception towards accepting the new normal during the pandemic. Whereas, extrinsic factors were greatly influenced by the environment and society in which the study participants were exposed. One of the identified extrinsic factors (residence), showed high significant association with QOL.

Athina Deepa Prasanna Athina deepa prasanna

Fate of e-waste in households in enugu west senatorial district of enugu state, southeast nigeria

Background: E-waste, is the waste generated from used electrical and electronic devices that are no longer fit for their original intended use. Currently e-waste comprises more than 5% of total municipal waste flow, equivalent to 20-50 million tonnes annually worldwide. In 2014, Nigeria generated about 219 kilo tonnes of e-waste. The study aimed to increase public awareness on the need for proper management of e-waste because of its hazardous nature. Methods: This was a cross-sectional study in Enugu West Senatorial District of Enugu State comprising Oji-River, Ezeagu, Udi, Awgu and Aninri Local Government Areas with a population of 980,988. An adaptation of the UNEP, EMPA and Basel convention questionnaire, administered to 400 households was used for data collection. Results: The potential e-waste generation in the study area was 0.05 kg per inhabitant. 76% of the households were aware of the hazards of e-waste. 64% were willing to give out their e-waste to waste collectors. Only 26% of the e-waste were collected with the general waste. The correlation between awareness of the hazards of e-waste and willingness of the households to give out their e-waste was positive, moderate, and insignificant (r= 0.43, p=0.47). Conclusions: Although 76 per cent of the households were aware of the hazards of e-waste, with 64% willing to give out their e-waste, only 26% of the e-waste were eventually collected together with the general waste. There is a need to create a separate e-waste collection system.

Emmanuel umegbolu

A pervasive multi-distribution perceptron and hidden markov model for context aware systems

Fueled by the recent advancements in pervasive environment, affluent context aware systems is among the rousing in computing today, including embedded environment, different wireless network technology, electronic communication and so on. Context-Aware Collaborative Filtering using Genetic Algorithm approach resulted in an improved mobile business model by determining optimal similarities between contexts. In this work, we plan to devise a hybrid framework called Multi-distribution Perceptron and Hidden Markov Model to smoothen the mobile networks with different degrees of context- confidence. Initially, Multi-distribution Layer Perceptron Model is designed aiming at improving the precision rate with the aid of Multi-distribution Bayesian Posterior measure. Experimental analysis shows that the M-PHMM framework is able to reduce the computational complexity for obtaining user patterns by 26.05% and improve the precision rate by 18.90% compared to the state-of-the- art works.

Dr H Shaheen Dr h shaheen

A review of thermal performance of solar concentrator – the future needs

Abstract Abundant solar energy is freely available almost round the year in India. As per the current scenario of global warming and climatic change, solar energy is the cleanest source in nature. Concentrated solar power (CSP)has hardly contributed to the overall installed solar power capacity in the country. CSP technologies are Parabolic Trough Collector (PTC), Linear Fresnel Reflector (LFR), Paraboloid Dish and Solar Power Tower. This paper presents a review of CSP in solar parabolic dish concentrator to understand thermal aspect like thermal efficiency, optical efficiency, useful heat gain, heat losses, solar irradiation, etc. for various applications and current development. The current scenario of global CSP is discussed to meet the future challenges and need of the society.

Pramod wadate

Effect of angiotensin converting enzyme inhibitors on health related quality of life in libyan patients with hypertension

Hypertension is a public health issue that significantly increases the risk of health problems and decreases health quality of life of the patients. Angiotensin converting enzyme inhibitors are used to control hypertension by preventing production of angiotensin II in turn decrease blood pressure, thus it may enhance the quality of life. This study aims to assess the effect of angiotensin converting enzyme inhibitors on the quality of life of patients with hypertensive aging 40 years or older in Benghazi city in comparison with other classes of hypertension medications. A case control observational study was conducted, adopting the structured face-to-face interviewing survey technique. Over 150 patients who visited Benghazi medical center during the study period (November, 2019 to March, 2020), to follow up their chronic disease. The investigators used a pre-validated, pre-piloted questionnaire that has been adopted from SF 36 and modified according to the updated literature review; responses to each question were coded and analyzed. The results display that antihypertensive medications were found to be significantly related to the limitation on the physical activity domain and found that medications decrease the limitation on the activity with about 20% of the patients who taking angiotensin receptor blockers (20%) and 30% of the patients taking angiotensin converting enzyme inhibitors, 40% of the patients had no limitations on bending kneeling and stooping. Moreover, on the limitations on walking more than one kilometre, the results were about 15% of the patients taking angiotensin receptor blockers and 30% of the patients taking angiotensin converting enzyme inhibitors had a slightly or no limitation on walking more than a kilometre. Thus, the findings indicate that antihypertensive medications have a positive effect on quality of life of the patient in limitation on activity domain but no conclusive difference was found between angiotensin converting enzyme inhibitors and angiotensin receptor blockers medications.

Mediterranean Journal of Pharmacy and Pharmaceutical Sciences Mediterranean journal of pharmacy and pharmaceutical sciences

Hypotensive activity of melilotus officinalis (l.) pallas (hucon-2013)

Melilotus officinalis (L.) Pallas. is used traditionally to treat hypertension and chronic venous insufficiency. The high prevalence of hypertension and the side effects of antihypertensive drugs potentiate us to evaluate Melilotus officinalis. The hypotensive effect of Melilotus officinalis butanol fraction (MOBF) was investigated in anaesthetised normotensive rats. The doses of 60, 80 and 100 mg/kg, i.v., produced a significant (P <0.05) decrease in blood pressure. The statistically non substantial reduction in blood pressure was shown by 20 and 40 mg/kg, i.v. These results suggest that Melilotus officinalis exhibited a hypotensive effect in normotensive rats. However, further evaluation of compound-related activity is required.

Dr. Salman Ahmed Dr. salman ahmed

Migratory speed and pattern of littorina scabra on mangrove trees sonneratia alba during incoming and outgoing tides in tanjung tiram, ambon bay

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.

Irma Kesaulya Irma kesaulya

Complete similarity measure mathematical model for cell layout design

The presented mathematical model is used to form machine cells, optimize costs of exceptional elements and design the shop floor layout for various demands of components. The complete similarity measure algorithm forms machine cells and part families in a refined form. Later, exceptional elements are eliminated in linear programming optimization model by using machine duplication and part subcontract. Then the shop floor layout is designed to have optimized material movements between cells and within a cell. The performance evaluation of cell formation algorithm is done on case studies of various batch sizes to give the process capability compared with other similar methods. The result from a linear programming optimization model is cost savings, machines duplicated, parts subcontracted, inter intra cellular movements. Finally, the output of inbound facility design is the floor layout which has machine cell clusters with optimized floor area.

S RAMESH S ramesh

Metapuf: a challenge response pair generator

Physically unclonable function (PUF) is a hardware security module preferred for hardware feature based random number and secret key generation. Security of a cryptographic system relies on the quality of the challenge-response pair, it is necessary that the key generation mechanism must unpredictable and its response should constant under different operating condition. Metastable state in CMOS latch is undesirable since it response becomes unpredictable, this feature used in this work to generate a unique response. A feedback mechanism is developed which forces the latch into the metastable region; after metastable state, latch settle to high or state depends on circuit internal condition and noise which cannot be predicted. Obtained inter hamming variation for 8 PUF is 51% and average intra hamming distance is 99.76% with supply voltage variation and 96.22% with temperature variation.

Abhishek kumar

Productivity and profitability of mustard (brassica juncea l.) in pearl millet-mustard cropping system as influenced by front line demonstrations intransitional plain of inland drainage zone of rajasthan

Front line demonstration is an appropriate means for demonstration as well as transfer of improved agricultural innovations to the farming community. Under centrally sponsored schemes on oilseed production technology under NFSM schemes, KVK Athiyasan, Nagaur-I conducted 425demonstrations on mustard covering 180 ha areaduring Rabi, 2015-16to 2019-20. The critical inputs were identified in existing production technology through discussion with farmers and on the basis of soil sampling. Lack of plant protection measures were the predominant identified causes of low productivity of oilseed crop in district Nagaur. In the same sequence the other parameters like technological impact, economical impact and extension gap were analyzed for impact assessment of frontline demonstration (FLDs) on mustard crop. The results of five consecutive years study revealed that the demonstration plots produced on an average 1954 kg/ha mustard grain yield, which was 22.51% higher compared to prevailing farmers practice (1597 kg/ha). The average increase in gross return, net return and cost of cultivation was in the tune of 22.36, 31.08 and 6.43 per cent, respectively. Further, data indicated that the average additional cost of cultivation (Rs. 1435/ha) under integrated crop management demonstrations and has fetched additional net returns of Rs. 12659 per hectare with incremental benefit: cost ratio of 0.41. The average technology gap, extension gap & technological index were found 636kg/ha, 356kg/ha and 24.44percent, respectively. The results clearly indicate the positive effect of FLDs over the existing practices.

DR. BABU LAL JAT Dr. babu lal jat

In vitro microscopic study of calcium hydrogen phosphate dihydrate crystals growth patterns

The study aims to explore the possible morphological features of calcium hydrogen phosphate dihydrate (brushite) crystals on a glass slide. The study was conducted on a glass slide under a microscope to observe the growth patterns. As a result, needle, platy, star shape, and tetragonal bipyramidal crystals were observed. Different patterns of platy crystals, like plates with spatial branches and radiating assemblages of platy crystals, were also found.

Dr. Salman Ahmed Dr. salman ahmed

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