Building an online field course using digital and physical tools including VR field sites and virtual core logging

Author(s):  
Daniel David Gregory ◽  
Heidi Elizabeth Tomes ◽  
Sofia L. Panasiuk ◽  
A. Julia Andersen
Keyword(s):  
2020 ◽  
Vol 10 ◽  
Author(s):  
Manish Dwivedi ◽  
Vijay Tripathi ◽  
Dhruv Kumar ◽  
Dwijendra K. Gupta

Aims: CdS nanoparticles are an attractive material having application in various field like as pigment in paints, biotag for bioimaging and many more optoelectronic as well as biological applications. Present study aims to synthesize and characterize the CdS nanoparticles to make it applicable in different areas Objectives: Preparation CdS nanoparticles by using simple and facile chemical methods and further physical and structural characterization using various physical tools Methods: In present work CdS nanoparticles has been synthesized by using rationally simple chemical precipitation method with some modi-fication on temperature and incubation time in existed methods. Characterizations were done by employing XRD, SEM, TEM, AFM tech-niques Results: Simple chemical method produces the CdS nanoparticles with the size about 100-200 nm in length and 5-10 nm in diameter. The SEM studies show that the CdS nanoparticles can agglomerate and form a continuous network like structure. The X-ray diffraction (XRD) measurements show the single-phase formation of CdS nanoparticles with the structure of cubic phase, and the broadening of XRD patterns indicates that the prepared samples are nanostructured. Our analysis on CdS nanoparticles by using transmission electron microscope and atomic force microscope (AFM) revealed that the nanoparticles form both spherical and nearly rod shaped with the average size applicable for biotagging. UV-Vis spectroscopic analysis reveals blue shift in the absorption peak probably caused by quantum confinement Conclusion: The observed CdS nanoparticles were appeared yellow in color. The XRD pattern of the CdS nanoparticles showed that the materials were of nanometric sized regime with a predominantly cubic phase along with the rod and round morphology. The study and char-acterization of CdS nanoparticles will bring us a new approach to understand biological problem by tagging nanoparticles with biomolecules and further suggests that the CdS nanoparticles formulate it more suitable biocompatible nanomaterial for biotagging and bioimaging


2021 ◽  
Vol 2 (1) ◽  
pp. 01-04
Author(s):  
Sherifa Sabra

This work was for "Impression during Coronavirus Pandemic (CVP) on Behaviour of Infectious-microbial-disease (IMD) and Home-physical-tools (HPTs) in Saudi-public (SP)". The aim was for a clarify impression during CVP on changing behaviour of IMD and HPTs in SP. That was by making a questionnaire to obtain information from people in SP. It found participating 28.5% for < 20 yr and was 71.5% for > 20 yr, 31.5% were men and 68.5% were women. While 92.5% lived in families, were HPTs differed in 83.5%, 75.5% agreed presence source Coronavirus infection (CVI) in the HPTs. As well as 11.5% individuals had CVI, where 84.5% refused to use HPTs if were suspected of carrying the CVI patient. Once 94.5% was not dealing with individuals infected with CV. Anywhere, 69.5% agreed for good treatment with the CVI patient after recovery and so 73.5% acquired skills to change the behaviour of HPTs. From the whole caution handle was 29.5%, hand washing considered 20%, permanent sterilization was 18.5%. The use of gloves and facemasks was 16.5%, not use other people's tools, it took 15.5%. That concluded from this paper the approved changes behaviour of IMD and HPTs in SP, that which had important for the decrease of CVP presence in SP and worldwide. That recommended the CVP is very risk in SP and worldwide and must take care of every behaviour in house to decrease CVI. We intend to do future research in changes behaviour in house to protect family members from CVI and save SP.


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