Results 21 to 30 of about 5,460,516 (329)
To assist or not to assist embryo hatching [PDF]
Human Reproduction Update, 2011 At early stages of development, the human embryo is protected by a surrounding two-layer coating—the zona pellucida. As the embryo develops further, this coating becomes thinner and, at the blastocyst stage, the thin coating is broken off and the embryo ‘hatches’ such that it can implant into the uterine wall.
Madelon van Wely, Fulco van der Veen
openaire +2 more sources
Compressed Channel Estimation for Intelligent Reflecting Surface-Assisted Millimeter Wave Systems
IEEE Signal Processing Letters, 2020 In this letter, we consider channel estimation for intelligent reflecting surface (IRS)-assisted millimeter wave (mmWave) systems, where an IRS is deployed to assist the data transmission from the base station (BS) to a user.
Peilan Wang +3 more
semanticscholar +1 more source
Effects of Psilocybin-Assisted Therapy on Major Depressive Disorder
JAMA psychiatry, 2020 This randomized clinical trial examines the efficacy of psilocybin as an adjunct to psychotherapy and other treatments for major depressive disorder.
Alan K. Davis +7 more
semanticscholar +1 more source
Large Intelligent Surface-Assisted Wireless Communication Exploiting Statistical CSI [PDF]
IEEE Transactions on Vehicular Technology, 2018 Large intelligent surface (LIS)-assisted wireless communications have drawn attention worldwide. With the use of low-cost LIS on building walls, signals can be reflected by the LIS and sent out along desired directions by controlling its phases, thereby ...
Yu Han +4 more
semanticscholar +1 more source
On the Second-Order Asymptotics for Entanglement-Assisted Communication [PDF]
, 2016 The entanglement-assisted classical capacity of a quantum channel is known to provide the formal quantum generalization of Shannon's classical channel capacity theorem, in the sense that it admits a single-letter characterization in terms of the quantum ...
Datta, Nilanjana +2 more
core +3 more sources
Cascaded Channel Estimation for Large Intelligent Metasurface Assisted Massive MIMO [PDF]
IEEE Wireless Communications Letters, 2019 In this letter, we consider the problem of channel estimation for large intelligent metasurface (LIM) assisted massive multiple-input multiple-output (MIMO) systems. The main challenge of this problem is that the LIM integrated with a large number of low-
Zhen-Qing He, Xiaojun Yuan
semanticscholar +1 more source
Phononless thermally activated transport through a disordered array of quantum wires [PDF]
, 2001 Phononless plasmon assisted transport through a long disordered array of finite length quantum wires is investigated analytically. Two temperature regimes, the low- and the high-temperature ones, with qualitatively different temperature dependencies of ...
de Araújo Andréa, Giugliano Loreny
core +5 more sources
Electromechanical-assisted training for walking after stroke.
Cochrane Database of Systematic Reviews, 2020 BACKGROUND Electromechanical- and robot-assisted gait-training devices are used in rehabilitation and might help to improve walking after stroke. This is an update of a Cochrane Review first published in 2007 and previously updated in 2017.
J. Mehrholz +4 more
semanticscholar +1 more source
Remarks on entanglement assisted classical capacity [PDF]
, 2003 The property of the optimal signal ensembles of entanglement assisted channel capacity is studied. A relationship between entanglement assisted channel capacity and one-shot capacity of unassisted channel is obtained.
Adami +17 more
core +2 more sources
Entanglement of Assistance [PDF]
, 1999 The newfound importance of ``entanglement as a resource'' in quantum computation and quantum communication compels us to quantify it in as many distinct ways as possible. Here we explore a new measure of entanglement for mixed quantum states of bipartite systems, which we name the Entanglement of Assistance.
DiVincenzo, David P. +5 more
openaire +5 more sources