What’s the Point of Getting Angry?

The focus of my piece is on feminist experience, on how anger is a useful tool in trying to argue feminist topics, especially in a world that helps those in power remain out of earshot of those talking about the problems in the world.

Shadow Tomography of Quantum States

We introduce the problem of *shadow tomography*: given an unknown $D$-dimensional quantum mixed state $\rho$, as well as known two-outcome measurements $E_{1},\ldots,E_{M}$, estimate the probability that $E_{i}$ accepts $\rho$, to within additive error $\varepsilon$, for each of the $M$ measurements. How many copies of $\rho$ are needed to achieve this, with high probability? Surprisingly, we give a procedure that solves the problem by measuring only $\widetilde{O}\left( \varepsilon^{-4}\cdot\log^{4} M\cdot\log D\right)$ copies. This means, for example, that we can learn the behavior of an arbitrary $n$-qubit state, on all accepting/rejecting circuits of some fixed polynomial size, by measuring only $n^{O\left( 1\right)}$ copies of the state. This resolves an open problem of the author, which arose from his work on private-key quantum money schemes, but which also has applications to quantum copy-protected software, quantum advice, and quantum one-way communication. Recently, building on this work, Brand\~ao et al. have given a different approach to shadow tomography using semidefinite programming, which achieves a savings in computation time.Comment: 29 pages, extended abstract appeared in Proceedings of STOC'2018, revised to give slightly better upper bound (1/eps^4 rather than 1/eps^5) and lower bounds with explicit dependence on the dimension

Obstetric Nurses’ Perceived Barriers to Immediate Skin to Skin Contact after Cesarean Birth

Despite the strong evidence supporting immediate skin to skin contact (SSC) after birth, research suggests that patients who undergo cesarean births do not have the same opportunities for SSC as patients who undergo vaginal births. There are limited studies regarding provider attitudes surrounding the practice of immediate SSC after cesarean birth. The aim of this research was to understand obstetric nurses’ perceived barriers to immediate SSC after cesarean section. An exploratory qualitative design was used for the project. The semi-structured, open-ended interviews were conducted via video conferencing. Conventional content analysis methods were used to analyze the data, which yielded the primary overarching theme of “performing safe and effective skin to skin contact after cesarean birth”. The participants identified both barriers and facilitators to SSC after cesarean. It was evident from the interviews that nurses strongly believe in the benefits of SSC after cesarean and try to implement it as often as possible, but various factors prevented SSC in the OR from occurring on a regular basis. This research can be used as a starting point for refining the practice of SSC after cesarean births