Zeolite-Modified Fischer-Tropsch Synthesis

The improvement of the gasoline selectivity and quality with the addition of HZSM-5 to the Fe-FT process is evident from literature. The catalytic performance of the combined Fe-FT/HZSM-5 system has been observed to decline with time-on-stream, attributed to the migration of alkali from the Fe-FT catalyst tothe HZSM-5 zeolite. The catalytic performance of the combined Fe-FT/HZSM-5system has, however, been observed to considerably decline with time-on-stream, aphenomenon which has been attributed to the migration of alkali from the Fe-FT catalyst to he HZSM-5 zeolite. The objective of this study is to characterize and confirm the reported performance of the Fe-FT and combined Fe-FT/HZSM-5 catalyst systems in a stirred from top internal recycle reactor under typical high temperature FT conditions

Acceptance and use of information and communication technology in higher education institutes of Kuwait: a proposed framework

Information Technology has been effective in every field around the world, and ICT acceptance in any field has produced new developments which has significantly contributed in that particular context. Driven by this impulse the Higher Education Institutes (HEI) around the world are incorporating ICT apparatuses and using the most recent advances to give world class education to inhabitants. In such manner Ministry of Education (MOE) Kuwait has propelled numerous plans and put some considerable measures in the execution of innovation in HEIs. HEIs for the most part comprises of Universities. While there is no comprehensive study conducted in measuring the success and obstacles in the State of Kuwait, therefore, this paper focuses to measure and identify the success factors in acceptance of HEIs in the State of Kuwait. In the interim keeping in mind the end goal to evaluate the adoption and use of ICT by students and academicians in their day by day work, the UTAUT will be used as baseline theory to measure the ICT acceptance by students and academicians. This investigation likewise intends to discover the variables and issues keeping in mind the end goal to make a model for better usage of ICT by in HEIs. The effect of this investigation will be on HEI (s) to enhance the policy of learning methods through successful use of ICT and enhance the ability of students and academicians to be more viable and quality-situated people

Prevalent distribution of conscious processes on either side of the brain

Objectives. The brain has an intrinsic tendency for the lateralization of its functions. For instance, the left hemisphere assists in the comprehension and motor expression of language. What remains uncertain is whether conscious processes are also more prevalent in one hemisphere of the brain than the other. The epistemic goal of this research was to address this particular issue. Materials and Methods. We observed the rare pathological event of proximal occlusion of the middle cerebral artery (MCA), which halts blood flow to the central two-thirds of a hemisphere, and examined its effects on consciousness. We aggregated individual scores for eyes-opening and limb-motor responses from the Glasgow Coma Scale (GCS) to determine the conscious level, and used brain computed tomography imaging to identify the whole-territory infarcts of MCA. Results. Being a rare condition, we managed to recruit 35 patients from two centers (average age: 64.54 ± 13 years, 45.71% females). Whole-territory infarcts of the MCA occurred more frequently in the left hemisphere (22 versus 13, frequency: 62.85%). Unconsciousness was also more common with left hemisphere infarctions (16 versus 2 unconscious patients of the right hemisphere, Frequency: 72%, GCS: 2/10=3/22 cases, GCS: 5/10=1/22 cases, GCS: 6-7/10=12/22 cases). The difference in unconsciousness proved significant in Fisher’s exact analysis (p-value = 0.001) and remained independent of age (p-value=0.7247) and gender (p-value=0.3145). Moreover, six conscious patients with left hemisphere involvement exhibited a loss of conscious control for normal responses, implying a strong link between consciousness and cognition. Unconsciousness also correlated with stroke outcomes (16 Unconscious: 56.25% deceased within the hospital). Conclusion. Conscious processes are more predominant in the brain\u27s left hemisphere. Our observations indicate that only a gross unilateral insult to the brain can lead to unconsciousness

Historical Analysis of Rationalizing South-West Coastal Polders of Bangladesh

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

Comprehensive ICT framework for educational institutes of Kuwait: an empirical study

The world has been changed by Information and Communication Technology (ICT), and many factors including new opportunities, fast-growing business, technological changes, and challenges have forced every part of the world to produce self-regulating and pre-found skilled oriented individuals. Driven by this compulsion the education institutions (EI) around the globe are integrating ICT tools and utilizing the latest technologies in order to provide quality education to their citizens. In this regard Ministry of Education (MOE) Kuwait has launched many plans and invested a lot in the implementation of technology in EIs. EIs mainly consists of Universities. While there is no comprehensive study in order to assess the adoption of ICT in the universities by all instructors and students of Kuwait as well as no empirical study have been conducted on the overall effectiveness of ICT in the EI (s). The effectiveness of any new technology depends upon acceptance and proper utilization of technology by all stakeholders. Subsequently realizing the importance of ICT availability and success in all parts of society, this research is aimed to understand, investigate, explore, and assess the ICT adoption in the universities of Kuwait. Meanwhile in order to assess the adoption and utilization of ICT by students and academicians in their daily work, the Unified Theory of Acceptance and Use of Technology (UTAUT) will be applied to measure the ICT acceptances by students and academicians. This study also aims to find out the factors and issues in order to create a model for better utilization of ICT by stakeholders in EI. The impact of this study will be on EI (s) to improve the quality of education system through effective utilization of ICT and improve the capability of students and academicians to be more effective and quality-oriented individuals

Vitamin D Status of Infants in Northeastern Rural Bangladesh: Preliminary Observations and a Review of Potential Determinants

Vitamin D deficiency is a global public-health concern, even in tropical regions where the risk of deficiency was previously assumed to be low due to cutaneous vitamin D synthesis stimulated by exposure to sun. Poor vitamin D status, indicated by low serum concentrations of 25-hydroxyvitamin D [25(OH)D], has been observed in South Asian populations. However, limited information is available on the vitamin D status of young infants in this region. Therefore, to gain preliminary insights into the vitamin D status of infants in rural Bangladesh, 25(OH)D was assessed in a group of community-sampled control participants in a pneumonia case-control study in rural Sylhet, Bangladesh (25°N) during the winter dry season (January-February). Among 29 infants aged 1-6 months, the mean 25(OH)D was 36.7 nmol/L [95% confidence interval (CI) 30.2-43.2]. The proportion of infants with vitamin D deficiency defined by 25(OH)D <25 nmol/L was 28% (95% CI 10-45), 59% (95% CI 40-78) had 25(OH)D<40 nmol/L, and all were below 80 nmol/L. From one to six months, there was a positive correlation between age and 25(OH)D (Spearman=0.65; p=0.0001). Within a larger group of 74 infants and toddlers aged 1-17 months (cases and controls recruited for the pneumonia study), young age was the only significant risk factor for vitamin D deficiency [25(OH)D <25 nmol/L]. Since conservative maternal clothing practices (i.e. veiling) and low frequency of intake of foods from animal source (other than fish) were common among the mothers of the participants, determinants of low maternal-infant 25(OH)D in Bangladesh deserve more detailed consideration in future studies. In conclusion, the vitamin D status in young infants in rural Sylhet, Bangladesh, was poorer than might be expected based on geographic considerations. The causes and consequences of low 25(OH)D in infancy and early childhood in this setting remain to be established

Factors Influencing Clients’ Satisfaction of Agent Banking: An Empirical Exploration

Purpose: The prime intention of this study is to explore client satisfaction with branchless agent banking services during the COVID-19 Pandemic. The roles of service quality, security, transaction cost, trust, and convenience have been explored to assess the client satisfaction of agent banking in Bangladesh.   Theoretical framework: The research model used in this study is based on the theory of Oliver (1980). In the model, dependent variable (client satisfaction) is measured through the service quality, security, transaction cost, trust, and convenience. Oliver (1980) claims that the customer satisfaction model explains why feelings of satisfaction occur when customers assess how well actual products or services perform in comparison to their expectations.   Design/Methodology/Approach: The self-administered questionnaire was deployed for primary data collection purposes. A partial least square-structural equation model (PLS-SEM) analysis was performed on the 286 useable questionnaires that were returned from a total of 300 questionnaires in order to validate the model and assess the validity of the hypothesis.   Findings: The study's conclusions showed that factors including service quality, security, trust, and convenience have a big impact on how satisfied customers are. Transaction costs don't, however, significantly affect how satisfied customers are.   Research, Practical &amp; Social implications: This study's findings will close the existing empirical gap by educating academics about the relationship between consumer happiness, service quality, security, transaction cost, trust, and convenience in the agent banking sector. Furthermore, it aids in their comprehension of theoretical and practical issues. Certainly, this research will serve as the basis for future research in Bangladesh in this field. The results of this investigation will have a wide range of significant ramifications for the sector.   Originality/Value: Agent banking is not a novel concept in Bangladesh, but to the best of our knowledge, there is no literature available that uses PLS-SEM to assess rural consumers' satisfaction. This essay is a wise attempt to close that gap. The research offers some useful practical implications for agent banks to identify appropriate ways to satisfy their consumers, despite some constraints

crossed cerebellar diaschisis in partial status epilepticus

Crossed cerebellar diaschisis is a phenomena described as decrease in metabolism in the cerebellar hemisphere contralateral to the supratentorial lesion. A 61 year old man presented with status epilepticus. CT Brain showed small acute hemorrhage in left parietal lobe.MRI revealed diffusion restriction in right cerebral and left cerebellar hemispheres with hyperintensities on T2WI and FLAIR. However, CT perfusion was suggestive of increased perfusion in these areas. Periictal EEG showed frequent bursts of higher voltage spike and wave discharges over the right hemisphere. He was treated with IV antiepileptics. But he continued to deteriorate, and expired at 10th day of admission

Active drag reduction in hydrocarbon media using rotating disk apparatus

A high precision rotating disk apparatus (RDA) is designed and employed to investigate the turbulent drag reduction characterization induced by polymeric additives. For the past few decades, polymers have been used widely as drag reducer agents in a pipeline and RDA successfully due to its viscoelastic properties that can suppress the turbulent at high ranges of Reynolds number. In this study, drag reduction efficacy of diesel fuel in a rotating disk apparatus is investigated using high molecular weight polyisobutylene polymer as drag reducing agent. Dependence of drag reduction on different parameters such as: polymer concentration and rotational disk speed (RPM) are also investigated. In addition, the mechanical stability of this polymer with time was studied by measuring torque values for 300 sec at a fixed rotational speed (2000 rpm). It was observed that the drag reduction of diesel fuel increases withthe rotational disk speed and polymer concentration till a critical concentration at which the maximum drag reduction achieved. The maximum DR obtained was about 19.197% at Re = 902062 and PIB concentration of 150 ppm

Rotating Disk Apparatus: Types, Developments and Future Applications

Power consumption reduction investigations attracted the attention of enormous numbers of researchers in the past few decades due to its high academic and economic impacts. The pumping power losses during the transportation of crude oils are considered as one of the main power consuming applications due to the turbulent mode of transportation. Investigating the possible solutions for this problem is expensive and time consuming due to the large apparatuses needed to simulate the flow in real pipelines. Rotating disk apparatus (RDA) is an instrument mainly comprising a rotating disk and an electrical motor to rotate the disk, which was implemented as an efficient and economical path to simulate what can be done in pipelines through generating a controlled degree of turbulence. This technique was also used in many other scientific applications due to its dynamic mode of operation. For example, a rotating disk electrode was used in electrodeposition processes and to characterize deposition film thickness and uniformity. The rotating disk reactor was employed to investigate the reaction rate between fluids and solid surfaces. The present work evaluates the RDA from different prospective and applications in order to introduce it as an efficient research tools for future dynamic investigations