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Search Results: 1 - 10 of 410101 matches for " Muhammad M. Ibrahim "
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Effect of Fungicides on Mango Malformation
Faqir Muhammad,Muhammad Ibrahim,M. Aslam Pervez
Pakistan Journal of Biological Sciences , 1999,
Abstract: Present studies were carried out to observe the effect of fungicides on mango malformation. The fungicides i.e. Benlate and Topsin-M were used at the rate of 0.2 per cent. Spray was made in July with an idea to control the mango malformation which was found more frequent on late season flushes. Both the fungicides reduced the incidence of malformation during the next blooming season. More number of malformed panicles were observed on untreated plants than treated ones. Among fungicides, Benlate was found more effective than Topsin-M to reduce the problem of mango malformation.
Studies on the Effect of Foliar Spray of Low Biuret Urea on Induction of Flowering in Mango (Mangifera indica L.)
Faqir Muhammad,Muhammad Ibrahim,M. Aslam Pervez
Pakistan Journal of Biological Sciences , 1999,
Abstract: Low biuret urea was applied as foliar spray on mango @ 1 and 2 per cent in August at the time of fruit bud differentiation. Spray of low biuret urea was found effective to increase fruit bud differentiation, which was indicated from enhanced flowering and increased number of fruits/yield in treated over control parts of trees. Two percent spray of low biuret urea was found more effective to increase flowering. Although number of flushes tagged in the previous season was almost same on treated and untreated plants yet more number of panicles emerged on treated plants than control due to the enhanced fruit bud differentiation caused by spray of low biuret urea. In addition to the positive effect on fruit bud differentiation, low biuret urea also helped to decrease the number of malformed panicles hence to improve the productivity of plants.
Emergency Response Communications and Associated Security Challenges
Muhammad Ibrahim Channa,Kazi M. Ahmed
International Journal of Network Security & Its Applications , 2010,
Abstract: The natural or man-made disaster demands an efficient communication and coordination among firstresponders to save life and other community resources. Normally, the traditional communicationinfrastructures such as landline or cellular networks are damaged and don’t provide adequatecommunication services to first responders for exchanging emergency related information. Wireless adhoc networks such as mobile ad hoc networks, wireless sensor networks and wireless mesh networks arethe promising alternatives in such type of situations. The security requirements for emergency responsecommunications include privacy, data integrity, authentication, key management, access control andavailability. Various ad hoc communication frameworks have been proposed for emergency responsesituations. The majority of the proposed frameworks don’t provide adequate security services for reliableand secure information exchange. This paper presents a survey of the proposed emergency responsecommunication frameworks and the potential security services required by them to provide reliable andsecure information exchange during emergency situations.
A Reliable Routing Scheme for Post-Disaster Ad Hoc Communication Networks
Muhammad Ibrahim Channa,Kazi M. Ahmed
Journal of Communications , 2011, DOI: 10.4304/jcm.6.7.549-557
Abstract: The natural or man-made disaster demands an efficient communication and coordination among first responders for successful emergency management operations. During emergency situations such as an earthquake or a flood, the traditional telecommunication infrastructure may be damaged and may not provide adequate communication services to emergency management teams. Mobile ad hoc networks are used in such type of situations for exchanging emergency related information. During emergency situation, the deployed ad hoc communication network may itself be prone to failures and vulnerable to malicious threats. The first responders use real-time applications for exchanging emergency related information, which may create network congestion. The significant loss of emergency related information may cause mismanagement of emergency response efforts. We propose a reliable routing scheme for post-disaster ad hoc communication networks, which finds the shortest possible routes with all reliable nodes. The proposed scheme also detects packet forwarding misbehavior caused by network fault or congestion in an active route and reroutes packets through other reliable route. The performance of the proposed scheme is evaluated in terms of packet delivery ratio, end-to-end delay and routing overhead through extensive simulations.
Emergency Response Communications and Associated Security Challenges
Muhammad Ibrahim Channa,Kazi M. Ahmed
Computer Science , 2010,
Abstract: The natural or man-made disaster demands an efficient communication and coordination among first responders to save life and other community resources. Normally, the traditional communication infrastructures such as land line or cellular networks are damaged and don't provide adequate communication services to first responders for exchanging emergency related information. Wireless ad hoc networks such as mobile ad hoc networks, wireless sensor networks and wireless mesh networks are the promising alternatives in such type of situations. The security requirements for emergency response communications include privacy, data integrity, authentication, key management, access control and availability. Various ad hoc communication frameworks have been proposed for emergency response situations. The majority of the proposed frameworks don't provide adequate security services for reliable and secure information exchange. This paper presents a survey of the proposed emergency response communication frameworks and the potential security services required by them to provide reliable and secure information exchange during emergency situations.
Thermodynamics and Adsorption Efficiencies of Maize Cob and Sawdust for the Remediation of Toxic Metals from Wastewater  [PDF]
Muhammad B. Ibrahim
Journal of Geoscience and Environment Protection (GEP) , 2013, DOI: 10.4236/gep.2013.12004
Abstract: The thermodynamics and sorption efficiencies for the remediation of Cr, Ni and Cd from their aqueous solutions using Maize Cob (MC) and Sawdust (SD) in a batch system are reported. Efficiencies were judged based on parameters such as sorbent weight, initial adsorbate loading concentration, pH and surface area. Shimadzu AA650 Double Beam Atomic Absorption/Flame spectrophotometer was employed to study concentration differences before and after the adsorption process. Parameters such as ΔH, ΔS and ΔG were determined. On MC, ΔH varied as 1466.59, 1271.21 and 1347.70kJmol-1 for Cr, Ni and Cd respectively. While on SD it varied as -566.85, 256.32 and 888.77kJmol-1respectively for the same order of metal ions. The three ions were found to be chemisorbed onto MC, while on SD Cr and Ni were physisorbed and Cd remains chemisorbed as suggested by Freundlich isotherm.
Health Promotion Model: An Integrative Literature Review  [PDF]
Ibrahim Aqtam, Muhammad Darawwad
Open Journal of Nursing (OJN) , 2018, DOI: 10.4236/ojn.2018.87037
Abstract: Background: The Health Promotion Model (HPM) indicates that each person is a biopsychosocial creature that is partially shaped by the environment, but also seeks to create an environment in which inherent and acquired human potential can be fully expressed. The HPM is proposed as a holistic predictive model of health-promoting behavior for use in research and practice. Purpose: The purpose of this review is to examine how the HPM has been applied in various research studies. Methods: An integrative review was used to find studies that were guided by the HPM. Data search was between 2008 to 2018 using Google Scholar, Scopus, Web of Science, Science Direct, PubMed, Medline, CINAHL, EBSCO, Cochrane, ERIC, Joanna Briggs Institute and EBSCO host. The keywords used were Pender’s and Health Promotion Model. Results: Seventeen studies were reviewed; most of them were quantitative studies. These studies discussed variables from the HPM. Most of the study variables were measured using instruments derived from the HPM. The results of the reviewed studies revealed that the HPM had predictive value in estimating health-promoting behaviors. Conclusion: The HPM was widely established in the nursing community and was implemented in nursing practice, education, and research. In addition, the HPM constructs were used to hypothesize conceptual frameworks in many studies to predict health-promoting behaviors in many chronic diseases.
A Systematic and Practical Approach of Analyzing Offshore System Maintenance Data
H. Hussin,F. M. Hashim,M. Muhammad,S. N. Ibrahim
Lecture Notes in Engineering and Computer Science , 2010,
Abstract:
A Linkage Study in 8 Pakistani Families Segregating as Autosomal Recessive Primary Microcephaly
M. Hassanullah,S.M. Ibrahim,S. Ahmad,N. Muhammad
Current Research Journal of Biological Sciences , 2011,
Abstract: The current study was designed to find the most frequent MCPH phenotype in inbred Pakistani families. Primary microcephaly is marked by small brain size and is usually inherited as recessive trait. In the present study, we performed linkage analysis on 8 Pakistani families with autosomal recessive primary microcephaly (MCPH) and linked 6 of them to known MCPH genes/loci like MCPH1 (Microcephalin), MCPH3 (CDK5RAP2) and MCPH5 (ASPM). Majority of the families showed linkage with MCPH5, the most common MCPH locus in Pakistan. The linked families were then subjected to mutational analysis, revealing a previously known G to A transition at nucleotide position 3978 in exon 17 of ASPM gene in three of the families. To decrease its incidence, it is indispensible to train the people of the possible devastating outcome of cousin marriages and to find the carriers through carrier screening programs.
Homozygosity Mapping in 8 Pakistani and Kashmiri Families for Known Alopecia Genes/Loci
M. Hassanullah,S.M. Ibrahim,S. Ahmad,N. Muhammad
Current Research Journal of Biological Sciences , 2011,
Abstract: The objective of the present study was to search for known alopecia genes/loci in highly inbred Pakistani and Kashmiri families. The term alopecia is broadly used for various forms of hereditary human hair loss, with large differences in age of inception, severity and coupled ectodermal abnormalities. Eight families with typical features of alopecia were included in the study and through linkage analysis, three of them were found linked with HR at 8p21.3, linkage interval at 12q21.2-q22 (containing several potential candidate genes) and ARWH1 locus (P2RY5) at 13q14.2 respectively. DNA sequence analysis in linked families revealed a C to G transition at nucleotide position 3978 (c. 3978C>G) in exon 18 of HR gene and a previously reported mutation, a homozygous 4 bp CATG insertion at nucleotide position 69 (c.69insCATG) in P2RY5 gene. The majority of the families which remained unlinked with markers for known alopecia genes highly signify the presence of novel gene/genes in causing the disease in these families and therefore, It is highly recommended that genome wide scan with microsatellite markers be performed to map the causative gene/genes.
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