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The effect of an individual’s education level on their systems skills in the system of systems domain

Journal of Management Analytics 2020年第4期7卷 510-531页

作者： niamat ullah ibne hossain Morteza Nagahi Raed Jaradat Erin Stirgus Charles B.Keating Department of Industrial and Systems Engineering Mississippi State UniversityMississippi StateMSUSA Department of Engineering Management&Systems Engineering Old Dominion UniversityNorfolkVAUSA

Today’s rapid proliferation of information and technological advancements has led to complex and uncertain modern systems *** problems resulting from this increased complexity may surpass engineers’current capacity to perform effectively within the domain of complex *** response to this situation,the concept of Systems Thinking(ST)has been advanced as an aid to building a mental map that offers a robust conceptual understanding to offset the challenges of modern system of systems(SoS)*** there has been some research regarding the effect of age and gender on ST preferences,there is still a lack of studies investigating how an individual’s ST skills preferences in system of systems(SoS)domain vary across educational *** addition,most of the extant literature focuses on one or two measures to assess the individual ST;thus,there is a need to include the full spectrum of ST measures to assess the ST skills preferences of an individual in the domain of complex *** address these gaps,this research uses an established ST skills preferences instrument to gauge an individual’s ST skills preferences in the SoS domain based on the educational *** hundred and fifty-eight participants with educational qualifications ranging from non-degree to graduate degree participated in the *** analysis of the responses was performed by a post-hoc test to show which groups differ *** the results obtained through aggregate individual responses,we conclude that each group(i.e bachelor,masters and phD),possesses a different ST skills preference profile on average,and the educational qualifications in the SoS environment has a moderation impact on individuals’system skills preferences.

关键词： system of systems(SoS) education skill-set systems thinking(ST) complex system

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A Historical Perspective on Development of Systems Engineering Discipline:A Review and Analysis

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Journal of Systems Science and Systems Engineering 2020年第1期29卷 1-35页

作者： niamat ullah ibne hossain Raed M.Jaradat Michael A.Hamilton Charles B.Keating Simon R.Goerger Department of Industrial and Systems Engineering Mississippi State UniversityPO Box 9542Mississippi State 39762USA Department of Industrial and Systems Engineering Mississippi State UniversityPO Box 9542Mississippi State39762USA Institute for Systems Engineering Research(ISER) Mississippi State University 3909 Halls Ferry RdVicksburgMS 39180 Department of Engineering Management&Systems Engineering Old Dominion UniversityNorfolkVA 23529 eInstitute for Systems Engineering Research(ISER) U.S Army Engineer Research Development Center(ERDC)3909 Halls Ferry RdVicksburgMS 39180

Since its inception,Systems Engineering(SE)has developed as a distinctive discipline,and there has been significant progress in this field in the past two *** to other engineering disciplines,SE is not affirmed by a set of underlying fundamental propositions,instead it has emerged as a set of best practices to deal with intricacies stemming from the stochastic nature of engineering complex systems and addressing their *** the existing methodologies and paradigms(dominant patterns of thought and concepts)of SE are very diverse and somewhat *** appears to create some confusion regarding the design,deployment,operation,and application of *** purpose of this paper is 1)to delineate the development of SE from 1926-2017 based on insights derived from a histogram analysis,2)to discuss the different paradigms and school of thoughts related to SE,3)to derive a set of fundamental attributes of SE using advanced coding techniques and analysis,and 4)to present a newly developed instrument that could assess the performance of systems *** than Two hundred and fifty different sources have been reviewed in this research in order to demonstrate the development trajectory of the SE discipline based on the frequency of publication.

关键词： Systems Engineering(SE) history development systems engineering attributes performance measures

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Element Composition of the Atmospheric Depositions in Bangladesh

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Journal of Environmental Protection 2018年第9期9卷 948-956页

作者： Jatish Chandra Biswas Md Mozammel Haque Mahmuda Akter A. T. M. Sakhawat hossain Faruk hossain Khan Md Zakaria ibne Baki Abu Bakar Siddique Sarker Md Rafiqul Islam Bangladesh Rice Research Institute Gazipur Bangladesh

Compositions of dry and wet atmospheric depositions vary depending on geographic locations and industrialization. Fog waters were collected from different regions of Bangladesh along with rain, sub-surface irrigation water and dust particles from Gazipur and compositions were analyzed. The compositions of fog water varied greatly among locations. The ammonium nitrogen (NH+4-N) content was the highest (36 - 37 ppm) in Gazipur district and the lowest in Sylhet district (3.2 - 3.6 ppm). Phosphorus (5.2 - 5.5 mg/L), K (29.5 - 30 mg/L), S (11.0 - 11.5 mg/L), Zn (2.9 - 3.3 mg/L), Na (11.7 - 12.5 mg/L), Ca (22.0 - 23.3 mg/L) and Cd (0.14 - 0.17 mg/L) contents were also higher in Gazipur district. Dust particles, rain and sub-surface irrigation water of Gazipur district contained considerable amounts of macro and micro elements. We conclude that dry and wet atmospheric depositions varied depending on locations and industrial development. Such study needs to be correlated with ecological consequences and soil fertility management.

关键词： Water Dust Chemical Composition Regions

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Antioxidant Activity and Hepatoprotective Potential of <i>Piper chaba</i>Roots against Paracetamol-Induced Liver Injury

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Pharmacology & Pharmacy 2019年第11期10卷 484-497页

作者： Samina Yesmin Ronok Zahan Md. Monjad hossain A. B. M. Atiqur Rahman Alam Khan Mir Imam ibne Wahed Tarannum Naz Department of Pharmacy Faculty of Science University of Rajshahi Rajshahi Bangladesh

Paracetamol induces oxidative damage of liver and hepatotoxicity continues to be among the main threats of public health. The present study evaluated the antioxidant and hepatoprotective activities of P. chaba roots. Hepatoprotective effects were demonstrated by significant alteration of serum biomarker enzymes and antioxidant enzymes. Co-administration of P. chaba extract to paracetamol-induced rats resulted in a partial recovery in the serum biochemical parameters (SGOT, SGPT, ALP and Bilirubin). However, ethanolic extract of Piper chaba at lower dose (200 mg/kg b.w.) was more effective than the higher dose 400 mg/kg b.w. in reducing serum dysfunction biomarker enzymes. The histopathological studies of liver tissues also showed better hepatoprotective activity of Piper chaba roots at the lower dose (200 mg/kg b.w.). Paracetamol induced hepatotoxicity in rats resulted in increase of antioxidant enzyme activities such as catalase, super oxide dismutase. The scavenging activity of P. chaba extract was moderate when compared with standard catechin and the IC50 values of P. chaba and standard catechin were 1.563 ± 0.70 and 3.125 ± 0.676, respectively in DPPH radical scavenging assay. The total antioxidant potential of P. chaba was concentration dependent and revealed promising antioxidant activity as compared to the reference standard catechin. At a concentration of 100 μg/mL the absorbance of P. chaba extract and catechin were 0.430 and 0.746 respectively. The research result indicated that P. chaba extract has protective effects on paracetamol induced oxidative stress and liver damage.

关键词： Piper chaba Antioxidant Hepatoprotection Oxidative Damage

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