Archives-March 2018

The ventilatory failure after a programmed extubation is defined as the inability to maintain spontaneous ventilation within a period of 72 hours of surveillance. The incidence of this problem is approximately 15%, and causes related to respiratory problems include 28% of the total being the principal cause of ventilatory failure and left ventricular dysfunction is the second cause. The criteria used to determine the possibility to extubate a patient only include respiratory factors; from the cardiac point of view only contemplates the use of amines. So far there is no a reliable noninvasive marker that can predict heart failure as a cause of ventilatory failure. Considering that the increase in ventilatory mechanics defines the majority of cases of ventilatory failure after extubation, it is possible that a tissue hypoperfusion marker could discern those patients with the possibility of ventilatory failure. In situations with low tissue perfusion, the difference in carbon dioxide is seen as an increase in CO2 in the venous blood and related to a decrease in cardiac output according to Fick equation. The amount of CO2 in venous blood is dependent on blood flow. For this reason, an increase in the venous-arterial CO2 difference reflects a decrease in blood flow and tissue hypoperfusion that could be used as a predictor of failure in extubation. We propose delta CO2 as a risk marker for ventilatory failure after extubation.

This study aims to bring forth some interesting research findings on an emerging field of entrepreneurial financing i.e. crowdfunding by focusing on the some recent advancement in the academic research. Since the inception of world’s pioneer crowdfunding platforms namely: Kickstarter, the scholars have turned their attentions towards this new emergent field of entrepreneurial finance. In crowdfunding, a vast number of people contribute in small proportions towards novel or innovative projects by using internet platforms. This study reveals that till now the research on crowdfunding mechanism has focused on developed markets; while the studies from developing markets are rare. Lastly, this study points out some interesting research gaps and provides future research directions. 

Wheat is an annual herbaceous plant whose breeding is done all over the world. Triticum monococcum with 2n chromosomes is known as the oldest wheat. T. turgidum has four set of chromosomes and used for pasta making. Emmer wheat (T. turgidum ssp. dicoccoides) is wild form of nearly all the domesticated wheats. T. aestivum has six set of chromosomes and used for bread making. bZIP transcription factors have DNA binding motifs and form the leucine zipper dimerization. Most of WRKY transcription factors control regulation of important functions for the development of plants. In this study, bZIP and WRKY genes were firstly cloned and compared between different wheat cultivars. For this, genes were amplified in PCR and transferred to pENTR™/D-TOPO® vector. Plasmids were sequenced and aligned. bZIP gene with 450 bp and WRKY gene with 672 bp in length were successfully cloned. DNA sequence of genes were translated to protein sequence. A total of 150 amino acids for bZIP and 224 amino acids for WRKY proteins were determined. With this study, sequences of bZIP and WRKY genes were firstly identified in ancestral and modern wheat cultivars. Obtained results from this study may be used for development of abiotic stress resistance plants.

This article draws connections between the non-fiction form of Documentary Theatre and participatory action research. It describes the fundamentals of Popular Education as being the roots of Documentary Theatre and shares the goals of this type of work. One particular new play, Dream Hope Wish Desire, developed at the American University in Cairo documents the hopes of the people of Egypt is offered as an example of the process of creating a collaborative new Documentary Theatre play. The article explains how the collaborative playwriting process is similar to research data collection, analysis and sharing.

The corrosion inhibition of tin by Phyllanthus niruri extract in different solutions of HCl (1N, 2N, 3N) and H2SO4 (1N, 2N, 3N) was investigated by weight loss and thermometric methods at 301K temperature. From the study it was found that the inhibition efficiency increases with the increase in the concentration of extract in HCl and H2SO4 solutions. Results indicate that Phyllanthus niruri extract was an efficient natural corrosion inhibitor in acidic media. The stem extract of the Phyllanthus niruri is better than leave extract of the plant. Absorption of Phyllanthus niruri depends on its chemical compositions which showed the presence of various compounds like alkaloids, flavanoids, steroids, tannins etc. which has O, N and S atoms with lone pair electrons to form co-ordinate bonding with metal.

Heavy metals contamination in river is one of the major quality issues in developing countries and metals enter these aquatic systems mainly through natural inputs such as weathering and erosion of rocks and anthropogenic sources including urban, industrial and agricultural activities, terrestrial runoff and sewage disposal. In the month of March CF > 6 in Copper indicated extremely contaminated as 9.333 in the water bodies. In the water bodies the month of March indicated that it is very high extremely polluted emphasized as 10.62 pollution load index. In the water sediments regarding in the month of March pointed out the pollution load index that it is very high extremely polluted as 17.28. The highest copper concentration was noticed in the water bodies during the month of March as 420±2.40 mg/l and the zinc as 260±3.04 mg/l which exceeded the shale value. The highest copper concentration was noticed in the water sediments during the month of March as 750±2.40mg/l and the zinc as 380±3.20 mg/l which exceeded the shale value. The Lead metal concentration was observed as 10 mg/l during all the months.

This study aims to clarify the implication of customer relationship management. Researches show contradictory findings of their studies from existing reality in relationship model domain. That is why researchers also suggested adding some more variables in trust-commitment model. This study is an effort to fill that gap by affixing some variables in different stages in trust-commitment model. Data analyzed by testing its validity through CFA. Proposed model analyzed using structural equation modeling technique on two different stages. The result has no contradiction between the findings and existing fact of customers. Satisfaction and communication influences the trust-commitment model and findings are realistic. That if customers properly communicated about the service in time, than satisfaction increases and relationship model gets strength. Moreover, positive result enhances the chances of more usage of the same service, which is expansion. First, this study unfolds a complete holistic trust-commitment model. Secondly, proposed and proved holistic model is simple and implementable in banking industry for the expansion of business. Thirdly, items of all variable validated in this region through latest technique confirmatory factor analysis.

In our project we have chosen coconut coir as the major reinforcement. and banana fiber as an additional fiber, to improve the mechanical property of polymer composite with vinyl ester as the base material, prepared by hand layup process according to ASTM standards the test specimens are prepared with different weight fractions of coconut coir and banana fiber. tests were conducted and the improvement in mechanical properties (tensile strength and flexural strength) of the hybrid composite material is observed

The environment of Dhaka city is depraving gradually day by day because of unplanned urbanization, destruction of greeneries by increasing building and economical activities areas to meet the demand of migrated people. This scenario is enhancing the negative change in climate gradually. It is one of the main causes of Buriganga river pollution because of climate change impact. Dhaka city, a capital of Bangladesh, which largely depends on the Buriganga River’s water for drinking, fishing, carrying merchandise and transportation.. The quality of water in this river was very poor and the average DO, BOD5, COD, Nitrate and Phosphate concentration in mg/L were 1.11, 82.3, 148.45, 5.92 and 5.83 respectively. This study mainly focused the climate change impact in term of rainfall on Buriganga River and disclosed it that decreasing the rate of rainfall affect the discharge of river because of climate change and increasing the rate of waste water because of incremental economical activities in industries both affects the dilution rate of Buriganga River simultaneously and this scenario will be also big concern in future for increasing climate change impact on rainfall in Dhaka City. In this study, we also discussed about pollution status of this river and finally the way to mitigate or minimize the pollution of Buriganga River.

The study has attempted to observe three models of biogas system using twenty liter plastic containers as digesters with Cow Dung (CD) and Poultry Droppings (PYD) organic wastes. The cow dung and poultry dropping were mixed separately with water in a ratio of 1:1 (v/v) and the slurry was properly stirred. Thereafter Treatments A, B, C, D and E were prepared using previously made slurry with the following specific proportions as (100% CD + 0% PYD), (75% CD + 25% PYD), (50% CD + 50% PYD), (25% CD + 75% PYD) and (0% CD + 100% CD). Three replicates were carried out for each sample. The plant consists of the fermentation chamber, the inlet and outlet pipe, the gas pipe and the stirrer. The samples were tested for methane and carbon dioxide productions along with pH and Temperature for 31days. Treatment D which is a mixture of (25% cow dung and 75% poultry droppings) produced more methane than the rest of the treatments. 96.08%. The cumulative methane yields of treatments D, A, C, E and B were 96.08%, 83.16%, 72.3%, 46.9% and 36.04% respectively. The order of both methane and carbon dioxide productions production was 25% CD + 75% PYD > 100% CD + 0% PYD > 50% CD + 50% PYD > 0% CD + 100% PYD > 75% CD + 25% PYD.The study revealed further that the mixture of Cow Dung and Poultry Droppings as waste was great potentials for generation of biogas and its use should be encourage due to its early retention time and high volume of biogas yields than other organic waste. Also in this study, it was found that temperature variation, pH and some of the factors that affected the volume yield of biogas production.The main objectives of this study were to evaluate the variation of methane and carbon-dioxide production from Cow Dung and Poultry Droppings both individually and combined as substrates and also to find out the suitable substrates composition for biogas production.