54 research outputs found
Peripheral Direct Adjacent Lobe Invasion Non-small Cell Lung Cancer Has a Similar Survival to That of Parietal Pleural Invasion T3 Disease
IntroductionThe postoperative prognosis of peripheral adjacent lobe invasion non-small cell lung cancer (NSCLC) is unclear. The purpose of this study was to determine the postoperative prognosis of NSCLC with direct adjacent lobe invasion by comparing it with that of visceral pleural invasion (primary lobe) T2 disease, and parietal pleural invasion T3 disease, and hence determine its most appropriate T category.MethodsA retrospective analysis was conducted to assess the survival of patients with peripheral direct adjacent lobe invasion NSCLC (group A), and it was compared with that of patients with visceral pleural invasion of the primary lobe (group B) and parietal pleural invasion (group C). All patients were node-negative on pathologic examination. Kaplan-Meier method was used to compare the postoperative survival between groups.ResultsA total of 263 patients were analyzed. The overall survival rates in groups A (n = 28), B (n = 167), and C (n = 68) at 5 years were 40.7, 54.6, and 41.9%, respectively; corresponding median survival in three groups were 53, 71, and 40 months, respectively. The survival difference among three groups was statistically significant (p = 0.031). A similar survival was observed between groups A and C, whereas group B had a much better survival than other groups.ConclusionsPeripheral adjacent lobe invasion NSCLC has a similar survival prognosis with that of parietal pleural invasion T3 disease and hence should be classified as T3 rather than T2. However, further studies are warranted
Faithful remote state preparation using finite classical bits and a non-maximally entangled state
We present many ensembles of states that can be remotely prepared by using
minimum classical bits from Alice to Bob and their previously shared entangled
state and prove that we have found all the ensembles in two-dimensional case.
Furthermore we show that any pure quantum state can be remotely and faithfully
prepared by using finite classical bits from Alice to Bob and their previously
shared nonmaximally entangled state though no faithful quantum teleportation
protocols can be achieved by using a nonmaximally entangled state.Comment: 6 page
Quantum Key Distribution and Quantum Authentication Based on Entangled State
Using the previously shared Einstein-Podolsky-Rosen pairs, a proposal which
can be used to distribute a quantum key and identify the user's identification
simultaneously is presented. In this scheme, two local unitary operations and
the Bell state measurement are used. Combined with quantum memories, a
cryptographic network is proposed. One advantage is no classical communication
is needed, which make the scheme more secure. The secure analysis of this
scheme is shown.Comment: Revtex, 9 pages, no figure, accepted for publication by Phys. Lett.
Experimental realization of quantum non-reciprocity based on cold atomic ensembles
In analog to counterparts widely used in electronic circuits, all optical
non-reciprocal devices are basic building blocks for both classical and quantum
optical information processing. Approaching the fundamental limit of such
devices, where the propagation of a single photon exhibits a good
non-reciprocal characteristic, requires an asymmetric strong coupling between a
single photon and a matter. Unfortunately it has been not realized yet. Here,
we propose and experimentally realize a quantum non-reciprocity device with low
optical losses and a high isolation of larger than 14 dB based on the cold
atoms. Besides, the non-reciprocal transmission of a quantum qubit and
non-reciprocal quantum storage of a true single photon are also realized. All
results achieved would be very promising in building up quantum non-reciprocal
devices for quantum networks.Comment: 7 pages, 4 figure
Laser Direct Writing of Visible Spin Defects in Hexagonal Boron Nitride for Applications in Spin-Based Technologies
Optically addressable spins in two-dimensional hexagonal boron nitride (hBN)
attract widespread attention for their potential advantage in on-chip quantum
devices, such as quantum sensors and quantum network. A variety of spin defects
have been found in hBN, but no convenient and deterministic generation methods
have been reported for other defects except negatively charged boron vacancy
(). Here we report that by using femtosecond laser direct writing
technology, we can deterministically create spin defect ensembles with spectra
range from 550 nm to 800 nm on nanoscale hBN flakes. Positive single-peak
optically detected magnetic resonance (ODMR) signals are detected in the
presence of magnetic field perpendicular to the substrate, and the contrast can
reach 0.8%. With the appropriate thickness of hBN flakes, substrate and
femtosecond laser pulse energy, we can deterministically and efficiently
generate bright spin defect array. Our results provide a convenient
deterministic method to create spin defects in hBN, which will motivate more
endeavors for future researches and applications of spin-based technologies
such as quantum magnetometer array
Ribosomal S6 Kinase 2 (RSK2) Maintains Genomic Stability by Activating the Atm/p53-Dependent DNA Damage Pathway
10.1371/journal.pone.0074334PLoS ONE89-POLN
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