Present energy scenario and solar energy as an alternative option for environmental protection

In today’s scenario utilization of energy in an effective manner is must and that is the need of the time. After industrial revolution we are using the classical energy sources which are dependent on fossil fuels. The rate of exploration ofthese resources are much higher along with the higher rate of pollution. With the advancement in technology more efficient alternative energy sources have been recognized for environmental protection and are now available for various applications. This paper focuses one of the alternativeused for energy generation i.e. the solar option. In this study comparison of flat plate solar collector and evacuated tube solar collector is carried out and feasibility is reported

Evaluation of the changes in pre-extraction blood pressure and pulse rate values with post-extraction blood pressure and pulse rate values

Background: Aim and objectives were to compare the differences in blood pressure and pulse rate readings before and after extraction of a tooth. Methods: A total of 250 patients were selected for the study, out of which, 124 were males and 126 were females. All the patients were in an age group from 20 till beyond 73 years of age. Blood pressure and pulse rate readings were measured before the start of the procedure. Extraction procedure was performed and post extraction blood pressure and pulse rate values were recorded. Both the values were compared and evaluated. Results: There was an obvious increase in systolic blood pressure and pulse rate values after a tooth extraction. Conclusions: Blood pressure and pulse rate values showed changes before and after tooth extraction but were within normal limits

BAF(mSWI/SNF) complex regulates mediolateral cortical patterning in the developing forebrain

Early forebrain patterning entails the correct regional designation of the neuroepithelium, and appropriate specification, generation, and distribution of neural cells during brain development. Specific signaling and transcription factors are known to tightly regulate patterning of the dorsal telencephalon to afford proper structural/functional cortical arealization and morphogenesis. Nevertheless, whether and how changes of the chromatin structure link to the transcriptional program(s) that control cortical patterning remains elusive. Here, we report that the BAF chromatin remodeling complex regulates the spatiotemporal patterning of the mouse dorsal telencephalon. To determine whether and how the BAF complex regulates cortical patterning, we conditionally deleted the BAF complex scaffolding subunits BAF155 and BAF170 in the mouse dorsal telencephalic neuroepithelium. Morphological and cellular changes in the BAF mutant forebrain were examined using immunohistochemistry and in situ hybridization. RNA sequencing, Co-immunoprecipitation, and mass spectrometry were used to investigate the molecular basis of BAF complex involvement in forebrain patterning. We found that conditional ablation of BAF complex in the dorsal telencephalon neuroepithelium caused expansion of the cortical hem and medial cortex beyond their developmental boundaries. Consequently, the hippocampal primordium is not specified, the mediolateral cortical patterning is compromised, and the cortical identity is disturbed in the absence of BAF complex. The BAF complex was found to interact with the cortical hem suppressor LHX2. The BAF complex suppresses cortical hem fate to permit proper forebrain patterning. We provide evidence that BAF complex modulates mediolateral cortical patterning possibly by interacting with the transcription factor LHX2 to drive the LHX2-dependent transcriptional program essential for dorsal telencephalon patterning. Our data suggest a putative mechanistic synergy between BAF chromatin remodeling complex and LHX2 in regulating forebrain patterning and ontogeny

Improved and Latest Design of a Nanosized Catalytic Converter for Pollution Prevention Implemented to Four Stroke Engine with Experimental Validation by Modeling

ABSTRACT A great deal of emphasis is placed on the real societal benefits around nanotechnology for energy efficiency, renewable resources, environmental remediation and pollution prevention. In particular, new and better techniques for pollution control are emerging as nano-particles push the limits and capabilities of technology. Environmental Pollution by vehicles is caused due to tail-pipe exhaust emissions depending on changes in driving cycles, engine condition, fuel composition and air-fuel ratio. Malfunction of engine devices, especially fuel injection system, increases the emissions of the main exhaust components. In the present work, an improved design more suitable for implementation along with improved performance and efficiency in reducing the exhaust emissions from two stroke and four stroke spark ignition engine. In the present work some alterations and modifications have been designed so as to increase the retention period of exhaust gases to provide more time for its oxidation and thereby to reduce the harmful emission. In this research, modeling has been done for a four stroke spark ignition engine with nano-sized copper coated catalytic converter. It will throw a light on the reduction in emission achieved by nano-particle coating. This paper opens a gateway to study the changes in the concentration of exhaust emissions due to the nano-material coating. The modeling will help in understanding the mathematical nature of the process