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6篇 您的检索式:作者名="Junaid Alam"
    题名 作者 年代 出处 被引量
1Anomalous Ionospheric foF2 Variations Observed Prior to the Dalbandin Earthquake in Pakistan显示文摘Ionosphereic foF2 variations are very sensitive to the seismic effect and results of ionospheric perturbations associated with earthquakes seem to very hopeful for short-term earthquake prediction. On January 18,2011 at 20: 23 UT a great earthquake( M = 7. 2)occurred in Dalbandin( 28. 73° N,63. 92° E),Pakistan. In this study,we have tried to find out the features of pre-earthquake ionospheric anomalies by using the hourly day time( 08. 00 a. m.- 05. 00 p. m.) data of critical frequency( foF2) obtained by three vertical sounding stations installed in Islamabad( 33. 78°N,73. 06°E),Multan( 32. 26°N,71. 51°E) and Karachi( 24. 89° N,67. 02° E), Pakistan. The results show the significant anomalies of foF2 in the earthquake preparation zone several days prior to the Dalbandin earthquake. It is also observed that the amplitude and frequency of foF2 anomalies are more prominent at the nearest station to the epicenter as compared to those stations near the outer margin of the earthquake preparation zone. The confidence level for ionospheric anomalies regarding the seismic signatures can be enhanced by adding the analysis of some other ionospheic parameters along with critical frequency of the layer F2.Muhammad Irfan Aftab Alam Muhammad Junaid Muhammad Ayyaz Ameen Talat Iqbal Huang Fuqiong 2015Earthquake Research in China2015,29,4:1
2Retracing Realistic Disaster Scenarios from Archival Sources:A Key Tool for Disaster Risk Reduction显示文摘Disaster scenarios are constructed by integrating natural hazard phenomena and social science sources of information.We profiled 51 natural hazard events of nineteenth century Kashmir that provide insights into the impacts of varying degree of severity that spread through the socioeconomic and political systems,influenced adaptation,and increased the consequences of the resulting disasters.The root cause of these disasters was embedded in the social,natural,and political economic systems of their time,where vulnerabilities overlapped and interacted periodically with successive colonial regimes and acted as tipping points.The combined effect of successive colonial regimes,inept administration,rigid political economy,and natural hazards made the situation go from bad to worse and reduced Kashmir to the depths of distress and subjugation.Over the arc of the nineteenth century,a series of disasters led the Kashmiri population to learn how to live with disasters and minimize risk,bringing about the evolution of social and environmental knowledge.Understanding the natural hazard vulnerability of the Kashmir Valley through archival narratives can help in scenario building to translate findings into formats that reduce related risk now as it did then.The resulting information can be useful for regional design,planning,and policy responses to promote disaster risk reduction.Bashir Ahmad Akhtar Alam M.Sultan Bhat Khurshid Ahmad Bhat Jeelani Inaam ul Haq Hakim Farooq Ahmad Junaid Qadir 2021International Journal of Disaster Risk Science2021,12,5:1
3Cardiopulmonary resuscitation: outcome and its predictors among hospitalized adult patients in Pakistan显示文摘Nadeem Ullah Khan Junaid A. Razzak Humaid Ahmed Muhammad Furqan Ali Faisal Saleem Hammad Alam Anwar ul Huda Uzma Rahim Khan Rifat Rehmani 2008International Journal of Emergency Medicine2008,,1:1
4Sagbi-Gröbner Bases Under Composition显示文摘The process of substituting variables in a polynomial with other polynomials is dubbed polynomial composition.The behaviour of Gröbner bases and Sagbi bases under composition is well known.In this paper,the authors provide a sufficient and necessary condition on a setΘof polynomials under which the Sagbi-Gröbner basis computation commutes with composition.This has natural applications to the computations of Sagbi-Gröbner bases for subsets of composed polynomials of subalgebra.KANWAL Nazish KHAN Junaid Alam 2023Journal of Systems Science & Complexity2023,36,5:0
5Varied presentations, magnitude, and outcome of traumatic neck injuries at a level I trauma center显示文摘Introduction:Traumatic neck injuries(TNIs)constitute 5%–10%of all trauma cases.These injuries can be caused by either penetrating or blunt trauma.Patients can have a varied presentation like cut injury over the neck,bleeding,neck swelling,breathing difficulty,dysphagia,etc.Methods:This was a retrospective observational study conducted at a level I trauma center in India from January 2016 to March 2020.One hundred thirty patients who required admission and intervention due to TNIs were included in this study.Results:One hundred thirty patients with neck injuries were included in this study.Males were predominant(91.5%)with the age ranging from 10 to 70years.The most common mechanism of injury was physical assault(40.7%),followed by road traffic injury(23.8%)and self-inflicted injuries(18.4%).Penetrating trauma was predominant.Open neck wound with bleeding was the most common presenting symptom.Zone II injuries were more common(83.8%)followed by zone I(12.3%)and zone III(3.8%).Soft tissue injury including skin,platysma breach,and strap muscle injury was present in 46.9% of patients.Laryngopharyngeal injury was present in 13.8%,tracheal injury in 28.5%,vascular injury in 13.8%,and esophageal injury in 4.6% of patients.Conclusion:Penetrating neck trauma is more common than blunt in developing countries like India.Advanced Trauma Life Support(ATLS)protocol guides the initial management.The definitive management depends on the type and mechanism of injury,anatomical level,severity,and the organ injured.Parvez Mohi Ud Din Dar Jogendra Boddeda Supreet Kaur Pratyusha Priyadarshini Abhinav Kumar Dinesh Bagaria Narendra Choudhary Junaid Alam Sushma Sagar Subodh Kumar Amit Gupta Biplab Mishra 2022Emergency and Critical Care Medicine2022,2,2:0
6Management and outcome of pancreatic trauma:a 6-year experience at a level I trauma center显示文摘Background: Pancreatic trauma (PT) accounts for less than 1% of all trauma admissions. Occasionally, PT is undetected during theprimary survey and becomes apparent only when complications arise. It occurs in up to 5% of blunt abdominal trauma cases and 12%of individuals with penetrating abdominal injuries. Management is determined by the status of the main pancreatic duct and associatedinjuries.Methods: This was an ambispective study conducted at the Jai Prakash Narayan Apex Trauma Center, All India Institute ofMedical Sciences,New Delhi, from January 2015 to December 2017 (retrospective), and January 2019 to December 2020 (prospective). In total, 113patients with PT were included in this study.Results:We analyzed the data of 113 patients with PT included in this study, of whichmales predominated (93.7%). Blunt PT was presentin 101 patients (89.4%) and penetrating PT in 12 patients (10.6%). Half of the patients (51.3%) had the American Association for theSurgery of Trauma grade III PT, followed by grade II (18.6%), and grade I (15%). Of the total 113 patients, 68 (60.2%) were treated withoperative management, and 45 (39.8%) with nonoperative management. Distal pancreatectomy, with or without splenectomy, was themost common procedure performed in our study, followed by drainage. There were 27 mortalities (23.8%) during the study period, ofwhich 7 were directly related to PT and 20 were due to other organ-related sepsis and hemorrhagic shock.Conclusion: Pancreatic trauma is rare but challenging for trauma surgeons, with persistent management controversies. Early diagnosisis important for favorable results;however, a delay in diagnosis has been associated with higher morbidity and mortality. Low-grade pancreaticinjuries can be successfully managed nonoperatively, whereas high-grade pancreatic injuries require surgical intervention.Abhinav Anand Parvez Mohi Ud Din Dar Preksha Rani Supreet Kaur Joses Dany James Junaid Alam Pratyusha Priyadarshini Abhinav Kumar Dinesh Bagaria Narendra Choudhary Subodh Kumar Amit Gupta Sushma Sagar Biplab Mishra 2023Emergency and Critical Care Medicine2023,3,1:0
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