Nature of Complex Network of Dengue Epidemic as a Scale-Free Network

Hafiz Abid Mahmood Malik,Faiza Abid,Nadeem Mahmood,Mohamed Ridza Wahiddin,Asif Malik 대한의료정보학회 2019 Healthcare Informatics Research Vol.25 No.3

Objectives: Dengue epidemic is a dynamic and complex phenomenon that has gained considerable attention due to its injurious effects. The focus of this study is to statically analyze the nature of the dengue epidemic network in terms of whether it follows the features of a scale-free network or a random network. Methods: A multifarious network of Aedes aegypti is addressed keeping the viewpoint of a complex system and modelled as a network. The dengue network has been transformed into a one-mode network from a two-mode network by utilizing projection methods. Furthermore, three network features have been analyzed, the power-law, clustering coefficient, and network visualization. In addition, five methods have been applied to calculate the global clustering coefficient. Results: It has been observed that dengue epidemic follows a powerlaw, with the value of its exponent γ = –2.1. The value of the clustering coefficient is high for dengue cases, as weight of links. The minimum method showed the highest value among the methods used to calculate the coefficient. Network visualization showed the main areas. Moreover, the dengue situation did not remain the same throughout the observed period. Conclusions: The results showed that the network topology exhibits the features of a scale-free network instead of a random network. Focal hubs are highlighted and the critical period is found. Outcomes are important for the researchers, health officials, and policy makers who deal with arbovirus epidemic diseases. Zika virus and Chikungunya virus can also be modelled and analyzed in this manner.

Reusable Aspect Models versus Theme/UML: the Aspect-Oriented Code Generation Perspective

Abid Mehmood,Dayang N.A. Jawawi 보안공학연구지원센터 2013 International Journal of Software Engineering and Vol.7 No.6

Interannual rainfall variability and ECMWF‐Sys4‐based predictability over the Arabian Peninsula winter monsoon region

Abid, Muhammad Adnan,Kucharski, Fred,Almazroui, Mansour,Kang, In‐,Sik John WileySons, Ltd 2016 Quarterly journal of the Royal Meteorological Soci Vol.142 No.694

<P>Interannual winter rainfall variability and its predictability are analysed over the Arabian Peninsula region by using observed and hindcast datasets from the state-of-the-art European Centre for Medium-Range Weather Forecasts (ECMWF) seasonal prediction System 4 for the period 1981-2010. An Arabian winter monsoon index (AWMI) is defined to highlight the Arabian Peninsula as the most representative region for the Northern Hemispheric winter dominating the summer rainfall. The observations show that the rainfall variability is relatively large over the northeast of the Arabian Peninsula. The correlation coefficient between the Nino3.4 index and rainfall in this region is 0.33, statistically significant at the 90% level, suggesting potentially some modest predictability, and indicating that El Nino increases and La Nina decreases the rainfall. Regression analysis shows that upper-level cyclonic circulation anomalies that are forced by El Nino Southern Oscillation (ENSO) are responsible for the winter rainfall anomalies over the Arabian region. The stronger (weaker) mean transient-eddy activity related to the upper-level trough induced by the warm (cold) sea-surface temperatures during El Nino (La Nina) tends to increase (decrease) the rainfall in the region. The model hindcast dataset reproduces the ENSO-rainfall connection. The seasonal mean predictability of the northeast Arabian rainfall index is 0.35, statistically significant at the 95% level. It is shown that the noise variance is larger than the signal over the Arabian Peninsula region, which tends to limit the prediction skill. The potential predictability is generally increased in ENSO years and is, in particular, larger during La Nina compared to El Nino years in the region. Furthermore, central Pacific ENSO events and ENSO events with weak signals in the Indian Ocean tend to increase predictability over the Arabian region.</P>

Linear low-density polyethylene gasification over highly active Ni/CeO2-ZrO2 catalyst for enhanced hydrogen generation

Abid Farooq,Surendar Moogi,장성호,KANNAPU HARI PRASAD REDDY,Soheil Valizadeh,Ashfaq Ahmed,Su Shiung Lam,박영권 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.94 No.-

Steam-gasification of linear low-density polyethylene (LLDPE) waste to hydrogen-rich gas has beenstudied systematically over nickel (10 wt.%) loaded on a variety of supports (Al2O3, CeO2, and CeO2-ZrO2)synthesized using a novel solvent deficient method (SDM). The hydrogen selectivity order of the catalystswas reported as Ni/CeO2-ZrO2>Ni/CeO2>Ni/Al2O3. The highest catalytic H2 selectivity of the Ni/CeO2-ZrO2 catalyst was reported to be76 vol.%, and was attributed to the smaller nickel crystals that werefinely dispersed on the support, and to formation of Ce1-xZrxO2-d solid solutions. The Ce1-xZrxO2-d solidsolution in the Ni/CeO2-ZrO2 catalyst was observed to be bi-functional, thus reflecting the acceleration ofthe water gas shift and the oxidation of carbon to CO and CO2. The better resistance of the Ni/CeO2-ZrO2catalyst towards coke deposition also indicated its potential for commercial-scale applications for thesteam gasification of plastics. Therefore, this research provides an advanced route to recycle LLDPE plasticwaste into hydrogen fuel, which presents both economical and environmental benefits.

Arsenic(V) biosorption by charred orange peel in aqueous environments

Abid, Muhammad,Niazi, Nabeel Khan,Bibi, Irshad,Farooqi, Abida,Ok, Yong Sik,Kunhikrishnan, Anitha,Ali, Fawad,Ali, Shafaqat,Igalavithana, Avanthi Deshani,Arshad, Muhammad Taylor Francis 2016 International journal of phytoremediation Vol.18 No.5

The Semantic Alignment of H-FOAF, DOMAIN and DBLP Ontologies with Link Open Data for a Health Social Network

Abid Ali Fareedi,Syed Hassan 제어로봇시스템학회 2014 제어로봇시스템학회 국제학술대회 논문집 Vol.2014 No.10

The aim of this study is to make collaborative networks of practitioners and researchers especially for healthcare community by using semantic web standards such as FOAF, etc. The proposed collaborative ontology modeling helps to resolve semantic alignment between distributed developed vocabularies/ontologies with domain ontology (cardiac-process) by using collaborative methodology. This collaborative ontology mechanism helps to find specific personnel who are involved in certain tasks, activities with assigned roles and involved in some research projects and attached with health-oriented social community. This approach also helps to publish domain factual knowledge with some link open data (LOD) resources, e.g. DBpedia for reusability.

Protein Transmission, Seeding and Degradation: Key Steps for α-Synuclein Prion-Like Propagation

Abid Oueslati,Methodios Ximerakis,Kostas Vekrellis 한국뇌신경과학회 2014 Experimental Neurobiology Vol.23 No.4

Converging lines of evidence suggest that cell-to-cell transmission and the self-propagation of pathogenic amyloidogenic proteinsplay a central role in the initiation and the progression of several neurodegenerative disorders. This “prion-like” hypothesis hasbeen recently reported for α-synuclein, a presynaptic protein implicated in the pathogenesis of Parkinson’s disease (PD) and relateddisorders. This review summarizes recent findings on α-synuclein prion-like propagation, focusing on its transmission, seeding anddegradation and discusses some key questions that remain to be explored. Understanding how α-synuclein exits cells and propagatesfrom one brain region to another will lead to the development of new therapeutic strategies for the treatment of PD, aiming atslowing or stopping the disease progression.

STABILITY ANALYSIS OF A HOST-VECTOR TRANSMISSION MODEL FOR PINE WILT DISEASE WITH ASYMPTOMATIC CARRIER TREES

Abid Ali Lashari,이광성 대한수학회 2017 대한수학회지 Vol.54 No.3

A deterministic model for the spread of pine wilt disease with asymptomatic carrier trees in the host pine population is designed and rigorously analyzed. We have taken four different classes for the trees, namely susceptible, exposed, asymptomatic carrier and infected, and two different classes for the vector population, namely susceptible and infected. A complete global analysis of the model is given, which reveals that the global dynamics of the disease is completely determined by the associated basic reproduction number, denoted by $\mathcal{R}_0$. If $\mathcal{R}_0$ is less than one, the disease-free equilibrium is globally asymptotically stable, and in such a case, the endemic equilibrium does not exist. If $\mathcal{R}_0$ is greater than one, the disease persists and the unique endemic equilibrium is globally asymptotically stable.

Supergene Alteration of Amphibole in Kaya San Kaolin Deposit : Mineralogical and Morphological Studies

( Abid Murtaza Khan,Soo Jin Kim,Dong Jin Lee ) 한국광물학회 1989 광물과 암석 (J.Miner.Soc.Korea) Vol.2 No.1

Genetic Variation of Esterase Isozrymes of Larval Haemolymph in Relation to Geographical Origin in the Silkworm, (Bombyx mori)

Abid Ali Khan,Moon Jae Yu,Lee,Sang Mong 서울大學校 農科大學 1988 서울대농학연구지 Vol.13 No.1

공시잠품종으로서 96품종중 일본종계 30, 중국종계 33, 유럽종계 24, 열대종계 9품종을 사용하여 계통별 잠품종간의 esterase isozyme의 전기영동적 이동도에 따라 유전적 변이 및 zymogram pattern으로 원산지별 잠품종의 유전적 상호관계를 알기 위하여 본 실험을 수행하였으며, 그 결과를 요약하면 다음과 같다. 1. 96품종의 누에체액의 esterase isozyme를 전기영동적 이동도에 따라 Est 1, Est 2, Est 3, Est 4, Est 5, Est 6, Est 7으로서 모두 7개의 양극으로 이동되는 isozyme을 검출하였다. 2. 원산지 게통별 esterase isozyme의 활성대수는 평균 2∼5개였다. 3. 7종의 esterase band는 그 표현형에 따라 10개의 symogram Pattern(T1-T10)으로 분류되었다. 4. 검출된 esterase isozyme의 대부분은 그 이동도에 따라 느린 부분, 중간부분, 빠른부분의 3부분으로 나누어졌다. 5. 모든 품종에서 공통적으로 검출된 esterase isozyme은 Est 2, Est 6, Est 7이었다. 6. 일본종에만 특이적으로 검출된 esterase는 Est 3이었다. 7. 각각의 esterase band는 이동도가 서로 달랐으나, 일본종 및 중국종에 있어서는 일본종의 Est 3를 제외하고는 서로 비슷한 변이를 보였다. 8. Est 1,Est 2, Est 3, Est 4, Est 5, Est 6,Est7의 계통별 출현 빈도는 일본종계 : 0%, 100%, 33%, 56.6%, 96.6%, 10%, 96.6% 중국종계 : 6.1%, 100%, 0%, 27.3%, 97%, 33.3%, 100% 유럽종계 : 4.2%, 95.8%, 0%, 29.2%, 95.8%, 8.3%, 100% 열대종계 : 0%, 100%, %, 0%, 0%, 100%, 100%였다. 9. 열대종계의 모든 품종은 다같이 Est 2, Est 6, Est 7 등 3개의 band를 공통적으로 가지고 있었다. 10. 모든 계통의 품종당 esterase isozyme의 band수는 2, 3, 4, 5개로서 그 빈도는 일본종계가 0%, 3.3%, 20%, 66.6%, 0%, 0%, 중국종계가 3%, 30.3%, 63.6%, 3%이었고 유럽종계는 3개 및 4개의 band가 각각 50%, 열대종계는 모든 품종 다같이 3개의 band가 100%이었다. 11. 日本種系의 表現型 T9와 中國種系의 T6은 가장 적은 수의 band를 가지고 있었고, 日本種에 만 特異的으로 存在하는 表現型은 T3으로서 3개의 band를 가지고 있었다. 12. 일본종계 및 중국종계가 다른 계통들 보다 esterase isozyme 변이가 심하여 유전적 다양성을 보였으며 중국종계가 일본종계보다 넓은 변이를 보임으로 유전변이의 중심은 중국종이라 생각된다.