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Search Results: 1 - 10 of 4750 matches for " Maheyzah Md Siraj "
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Intelligent Alert Clustering Model for Network Intrusion Analysis
Maheyzah Md Siraj,Mohd Aizaini Maarof,Siti Zaiton Mohd Hashim
International Journal of Advances in Soft Computing and Its Applications , 2009,
Abstract: As security threats change and advance in a drastic way, most ofthe organizations implement multiple Network Intrusion DetectionSystems (NIDSs) to optimize detection and to provide comprehensiveview of intrusion activities. But NIDSs trigger a massive amount ofalerts even for a day and overwhelmed security experts. Thus,automated and intelligent clustering is important to reveal theirstructural correlation by grouping alerts with common attributes. Wepropose a new hybrid clustering model based on Improved UnitRange (IUR), Principal Component Analysis (PCA) andunsupervised learning algorithm (Expectation Maximization) toaggregate similar alerts and to reduce the number of alerts. Wetested against other unsupervised learning algorithms to validate theperformance of the proposed model. Our empirical results showusing DARPA 2000 dataset the proposed model gives better results interms of the clustering accuracy and processing time.
Review on Estimation of Crop Water Requirement, Irrigation Frequency and Water Use Efficiency of Cabbage Production  [PDF]
Siraj Beshir
Journal of Geoscience and Environment Protection (GEP) , 2017, DOI: 10.4236/gep.2017.57007
Abstract: Water is the major limiting factor for crop production. A lot of water resources have been exploited for irrigation purpose. Therefore, the objective of this review paper was to collect information on cabbage water requirement, irrigation scheduling and water use efficiency by triangulating different literatures on the topic. Nowadays on worldwide there is a water-shortage, accordingly it is necessary to adopt water saving agriculture as a counter measure as well as efficient use of irrigation water is becoming increasingly important. In growing crop, irrigation scheduling is a critical management input to ensure optimum soil moisture status for proper plant growth and development as well as for optimum yield, water use efficiency and economic benefits. Thus according reviewed literatures on average twice a week irrigation scheduling and 2.57 - 5.81 mm/day of crop water requirement is more visible for cabbage production. In addition, climate models were reviewed in detail in this paper CROPWAT 8.0 and DSSAT reproduce acceptably the unimodal and bimodal shapes of the annual variation of rainfall and temperature respectively; there is a time shift between the observed and simulated peaks. Therefore it is essential to develop irrigation scheduling strategies under local climatic conditions to utilize scarce water resources efficiently and effectively for crop production.
ASSESSMENT OF ANALGESIC, ANTIDIARRHOEAL AND CYTOTOXIC ACTIVITY OF ETHANOLIC EXTRACT OF THE WHOLE PLANT OF BACOPA MONNIERI LINN
Siraj Md. Afjalus,Newton Chakma,Mahmudur Rahman,Malik Salahuddin
International Research Journal of Pharmacy , 2012,
Abstract: The ethanol extract of the whole plant of Bacopa monnieri Linn. (Scrophulariaceae) was investigated for its possible analgesic, antidiarrhoeal and cytotoxic activities in animal models. The extract produced significant writhing inhibition in acetic acid-induced writhing in mice at the oral dose of 250 mg/kg & 500 mg/kg body weight (p<0.001) comparable to the standard drug Diclofenac sodium at the dose of 25 mg/kg of body weight. The extract showed antidiarrhoeal activity on castor oil induced diarrhoea in mice; it increased mean latent period and decreased the frequency of defecation significantly at the oral dose of 500 mg/kg body weight comparable to the standard drug Loperamide at the dose of 50 mg/kg of body weight. The crude extract produced the most prominent cytotoxic activity against brine shrimp Artemia salina (LC50 = 26.30 μg/ml).
INVESTIGATION OF ANALGESIC AND ANTIOXIDANT ACTIVITY OF ETHANOLIC EXTRACT OF STREBLUS ASPER LOUR. (MORACEAE) LEAF AND BARK
Siraj Md. Afjalus,Malik Salahuddin,Mahmudur Rahman,Amina Khatun
International Research Journal of Pharmacy , 2013,
Abstract: The ethanol extract of the leaf and bark of Streblus asper Lour. (Moraceae) was investigated for its possible analgesic effects in animal models and its antioxidant activities. It exhibited statistically significant writhing inhibition in acetic acid induced writhing inhibition in mice. The crude extract of leaf of 500 mg/kg & 250 mg/kg body weight produced 65.46% & 27.79% inhibition of writhing. On the other hand bark of 500mg/kg & 250mg/kg body weight produced 58.70 % & 20.26% inhibition of writhing respectively; while the standard drug Diclofenac inhibition was found to 64.94 % at a dose of 25 mg/kg body weight. The antioxidant property of ethanolic extract of leaf & bark of Streblus asper Lour. was assessed by DPPH (1, 1-diphenyl-2-picryl hydrazyl) free radical scavenging activity. In DPPH scavenging assay the IC50 value of leaf & bark was found to be 1 μg/ml & 10 μg/ml which were comparable to the standard ascorbic acid.
EVALUATION OF NEUROPHARMACOLOGICAL, ANTIBACTERIAL AND ANTINOCICEPTIVE ACTIVITY OF METHANOLIC EXTRACT OF THE BARK OF CYNOMETRA RAMIFLORA LINN. (LEGUMINOSAE)
Siraj Md. Afjalus,Salahuddin Malik,Hossain Emrul,Safi Sanjana
International Journal of Research in Ayurveda and Pharmacy , 2013, DOI: 10.7897/2277-4343.04220
Abstract: The crude methanolic extract of the bark of Cynometra ramiflora Linn. (Leguminosae) growing in southeast part of Bangladesh has been evaluated for its possible neuropharmacological, antibacterial and antinociceptive properties. The extract of Cynometra ramiflora bark potentiated the pentobarbital induced sleeping time in mice, decreased the open field score in open field test, decreased the number of hole crossed from one chamber in the hole cross test and decreased the head dip responses in hole board test. Acute toxicity test showed that the plant might be safe for pharmacological uses. Antibacterial activity of Cynometra ramiflora bark was tested by disk diffusion method. The extract exhibited significant antibacterial activity against Vibrio cholerae, Salmonella typhi, Staphylococcus aureus and exhibited moderate antibacterial activity against Escherichia coli, Shigella dysenteriae, Shigella sonnei, Enterococci, Shigella boydii, Shigella flexneri, Staphylococcus epidermis. The methanolic extract exhibited statistically significant writhing inhibition in acetic acid-induced writhing model in white albino mice. The crude extract produced 48.62% inhibition of writhing at the dose of 250 mg/kg body weight and 63.89% inhibition of writhing at the dose of 500 mg/kg body weight, while the standard drug Diclofenac-Na inhibition was found to produce 69.45% at a dose of 25 mg/kg body weight.
Performance of Multirate Multicast in Distributed Network  [PDF]
Soumen Kanrar, Mohammad Siraj
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2010, DOI: 10.4236/ijcns.2010.36074
Abstract: The number of Internet users has increased very rapidly due to the scalability of the network. The users demand for higher bandwidth and better throughput in the case of on demand video, or video conference or any real time distributed network system. Performance is a great issue in any distributed networks. In this paper we have shown the performance of the multicast groups or clusters in the distributed network system. In this paper we have shown the performance of different users or receivers belongs to the multicast group or cluster in the distributed network, transfer data from the source node with multirate multicast or unirate multicast by considering packet level forwarding procedure in different sessions. In this work we have shown that how the throughput was effected when the number of receiver increase. In this work we have considered the different types of queue such as RED, Fair queue at the junction node for maintaining the end to end packet transmission. In this work we have used various congestion control protocol at the sender nodes. This paper we have shown the performance of the distributed cluster network by multirate multicast.
Study of Ionic Conduction and Dielectric Behavior of Pure and K+ Doped Ag2CdI4  [PDF]
Khalid Siraj, Rafiuddin Rafiuddin
Soft Nanoscience Letters (SNL) , 2012, DOI: 10.4236/snl.2012.22003
Abstract: The ionic conductivity of 8, 9 and 10 mol% K+ doped Ag2CdI4 showed slight decrease whereas the phase transition was observed almost at the same temperature as it reported for pure Ag2CdI4. This decrease in conductivity likely results from decrease in free volume because of the larger K+ ions (rK+ = 133 pm and rAg+ = 129 pm) entering Ag2CdI4 lattice which is unchanging in size. The dielectric constant of Ag2CdI4 was found to increase with increasing temperature as the orientation of dipoles is facilitated in rising temperature.
Effect of Maize/Haricot Bean Intercropping on Soil Fertility Improvement under Different Tied Ridges and Planting Methods, Southeast Ethiopia  [PDF]
Siraj Beshir, Jemal Abdulkerim
Journal of Geoscience and Environment Protection (GEP) , 2017, DOI: 10.4236/gep.2017.58007
Abstract: Mono cropping is the dominant factor influencing plant nutrient uptake and loss of soil quality in Ethiopia whereas intercropping of cereal/legume has positive environmental qualities. Likewise drought and moisture stress condition is widely expanding from all direction to the center of the country. Therefore, the objective of this research was to evaluate influence of planting methods, tied ridge and cropping system on different soil chemical properties in case of Madda Walabu district, Southeast Ethiopia. It was undertaken at Bidire from March 2016 to January, 2017. In this experiment, one maize variety (Melkassa 2) and one haricot bean variety (Nasir) were used. Treatments include open end and closed end tied ridge; sole cropping and intercropping; and in furrow, on ridge and flat bed planting. Each treatment has been triplicate and the experiment plots were laid out in randomized complete block design. Intercropping of maize-haricot bean with tied ridge and planting methods were highly influenced soil pH, exchangeable potassium, available phosphorous, soil organic matter and total soil nitrogen. Generally, the use of intercropping and closed end tied ridge in combination with in furrow planting significantly increased (p0.05) soil fertility in the system, which could be promising for sustainable improvement of crop production and productivity for semi arid areas of Bale zone.
Author′s reply
Wali Siraj
Annals of Thoracic Medicine , 2010,
Abstract:
Mycobacterium chelonae empyema with bronchopleural fistula in an immunocompetent patient
Wali Siraj
Annals of Thoracic Medicine , 2009,
Abstract: Mycobacterium chelonae is one of the rapidly growing mycobacteria that rarely cause lung disease . M chelonae more commonly causes skin and soft tissue infections primarily in immunosuppressed individuals. Thoracic empyema caused by rapidly growing mycobacteria and complicated with bronchopleural fistula is rarely reported, especially in immunocompetent patients. In this article we report the first immunocompetent Arabian patient presented with M chelonae- related empyema with bronchopleural fistula which mimics, clinically and radiologically, empyema caused by Mycobacterium tuberculosis.
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