Nucleic Acid Sequence Composition of the Oxford – AstraZeneca Vaccine ChAdOx1 nCoV-19 (AZD1222, Vaxzevria)

The vaccine ChAdOx1 nCoV-19 has been widely used, but its purity has been disputed because of rare side effects. We used Nanopore sequencing to assess the sequence and genetic purity of a vaccine dose. As we were lacking a reference sequence for the antigen cassette, we provide the obtained annotated sequence of the full vector to aid further studies on this topic. Our sample adhered to the published data, was highly pure (>99.97%), and no copy of the E1 gene as a predictor on replication-competent escape mutants was found.

`Flowonthego' - flow tracking technology on your smartphone

<p>Over the past few years, smartphone devices have become so powerful that in your pocket, not only do you have a device which can communicate with people across the world, the sheer power of these devices has now also brought a new frontier in scientific measurements. In this presentation, we present our smartphone app 'flowonthego', a technology which allows users to determine flow velocities, in almost real-time, from simple video footage. The instantaneous velocity fields are calculated by solving the Lucas-Kanade solutions to the optical flow equations and tracking naturally occurring features. The app also harnesses the potential of augmented reality, making calibration reference and the need tape measures a thing of the past. Furthermore, the app also packs an arsenal of post-processing tools in which users can understand basic statistics. From preliminary our studies we have found 'flowonthego' is able to match the statistics of commonly used ADCP's while also providing instantaneous full vector fields allowing users to better understand dynamical processing. </p><p><img src="https://contentmanager.copernicus.org/fileStorageProxy.php?f=gnp.9d2d602fcdff52519640161/sdaolpUECMynit/12UGE&app=m&a=0&c=2ba347a62b8a1a41850ed383c5014169&ct=x&pn=gnp.elif&d=1" alt=""></p>

The full vertex functions constrained by the longitudinal and transverse Ward–Takahashi identities in massless QED3 theory

In this paper, we find apart from the Ward–Takahashi (WT) identity, the identity between gamma matrices can also constrain the vertex functions in low-dimensional gauge theories. In (1 + 1) dimensions, the identity between gamma matrices gives the identity between vector and axial-vector vertex functions while in (2 + 1) dimensions it leads to the identity between vector and tensor vertex functions. Then, we derive the expressions of the full scalar, vector and tensor vertex functions in (2 + 1) dimensions Quantum Electrodynamics (QED3) by using the longitudinal and transverse WT identities for vector and tensor currents. Furthermore, we find that in the chiral limit with zero fermion masses, the contribution of Wilson line in full vector vertex function is eliminated and the full vector vertex function is strictly expressed in terms of the fermion propagators when using the identity between vector and tensor vertex functions to further constraint the vertex functions.