Results 101 to 110 of about 5,376 (192)

Case of heterotopic cervical pregnancy and total placenta accreta after artificial cycle frozen‐thawed embryo transfer

open access: yesReproductive Medicine and Biology, 2018
Case A 39‐year‐old woman presented with a genital hemorrhage at 5 weeks of gestation after an artificial cycle double frozen‐thawed embryo transfer. She was diagnosed with a cervical heterotopic pregnancy.
Kazuki Saito   +4 more
doaj   +1 more source

Size-enhanced, coherent photoluminescence from CdS-ZnO nanocomposite thin film [PDF]

open access: yesarXiv, 2004
We show that the photoluminescence emitted from a dense, two-component ensemble of quantum dots is significantly higher than that from quantum dots of either of the two pure systems (CdS and ZnO). The semiconductor nanocomposite, in which the characteristic grain size of each species was 2-3 nm, was deposited directly on Si wafers by high-pressure ...
arxiv  

Proceso de atención de enfermería en paciente de 17 años de 26 semanas de gestación con hemorragia severa preparto. [PDF]

open access: yes, 2020
During pregnancy there are many complications that put both the mother's and baby's lives at risk. Severe antepartum hemorrhage is one of them being one of the major complications that occur during pregnancy due to associated causes such as detachment of
Méndez Mayorga, Carlos Andrés
core  

Abnormalities of the Umbilical Cord [PDF]

open access: yes, 2017
Abnormalities of the umbilical cord, related to morphology, placental insertion, number of vessels and primary tumors, can influence the perinatal outcome and may be associated with other fetal anomalies and aneuploidies.
Dijmarescu, Lorena Anda   +5 more
core   +2 more sources

Design for a Darwinian Brain: Part 2. Cognitive Architecture [PDF]

open access: yesarXiv, 2013
The accumulation of adaptations in an open-ended manner during lifetime learning is a holy grail in reinforcement learning, intrinsic motivation, artificial curiosity, and developmental robotics. We present a specification for a cognitive architecture that is capable of specifying an unlimited range of behaviors.
arxiv  

Lower uterine segment placental thickness in women with abnormally invasive placenta. [PDF]

open access: yes, 2018
Introduction Ultrasound signs of abnormal placental invasion are subjective in nature. We tested the hypothesis that placental thickness in the lower uterine segment is increased when there is abnormally invasive placenta (AIP) in women with a low‐lying
Bhide, A   +7 more
core   +1 more source

ProvAbs: model, policy, and tooling for abstracting PROV graphs [PDF]

open access: yesarXiv, 2014
Provenance metadata can be valuable in data sharing settings, where it can be used to help data consumers form judgements regarding the reliability of the data produced by third parties. However, some parts of provenance may be sensitive, requiring access control, or they may need to be simplified for the intended audience.
arxiv  

Placenta accreta and emergency cesarean delivery correlates to cervical length and transcervical placental thickness measurement [PDF]

open access: yes, 2017
Background: The study aims to evaluate the effect of cervical length and the transcervical placental thickness measurement at 28-30 weeks gestation in predicting the risk of antepartum haemorrhage (APH) and emergency preterm caesarean delivery (CD) in ...
Abbas, Ahmed M.   +2 more
core   +2 more sources

Observation of four-photon absorption and determination of corresponding nonlinearities in CdS quantum dots [PDF]

open access: yesarXiv, 2016
Bound- and excited-state electronic nonlinearities in CdS quantum dots have been investigated by Degenerate Four-Wave Mixing (DFWM) and Z-scan techniques in the femtosecond time regime. This QD sample shows Kerr-type nonlinearity for incident beam intensity below 0.18 TW/cm$^2$. However, further increment in intensity results in four-photon absorption (
arxiv  

Investigations of temperature-dependent photoluminescence of uncoated and silver-coated CdS quantum dots [PDF]

open access: yesarXiv, 2016
We report temperature-dependent photoluminescence (PL) studies and PL relaxation dynamics for uncoated and silver-coated CdS quantum dots (QDs). Room-temperature photoluminescence studies indicate that the presence of silver coating on CdS QD samples enhances the blue luminescence corresponding to the band-to-band transitions by a factor of ten ...
arxiv  

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