Health care services during pregnancy and childbirth and after delivery are important for the survival and wellbeing of both the mother and the infant. The pregnancy outcomes at Kasungu District Hospital Maternity War...Health care services during pregnancy and childbirth and after delivery are important for the survival and wellbeing of both the mother and the infant. The pregnancy outcomes at Kasungu District Hospital Maternity Ward have not been documented. Additionally, MDHS does not capture data regarding, prematurity, APGAR scores, and causes of maternal deaths and causes of neonatal deaths. Using Kasungu District Hospital Maternity Ward register, we aimed to describe the pregnancy outcomes at Kasungu Maternity Ward. From March 2016 to February 2017, data were available for 10,842 deliveries. The calculated Perinatal Mortality Rate (PMR) was about 77/1000 births and the Maternal Mortality Ratio (MMR) was 318 deaths per 100,000 live births. The Spontaneous Vertex Delivery (SVD) rate was 86% and the caesarean section rate was 10%. 1734 (16%) of all deliveries were premature borne between 28 and 36 gestation weeks. 1182 (11%) deliveries had missing APGAR scores and 81 neonates were born with 5 min Apgar scores less than 7. Adverse pregnancy outcomes occur at Kasungu Hospital Maternity Ward. More effort and resources are needed to decrease their occurrence.展开更多
Topological photonics have provided new insights for the manipulation of light.Analogous to electrons in topological insulators,photons travelling through the surface of a topological photonic structure or the interfa...Topological photonics have provided new insights for the manipulation of light.Analogous to electrons in topological insulators,photons travelling through the surface of a topological photonic structure or the interface of two photonic structures with different topological phases are free from backscattering caused by structural imperfections or disorder.This exotic nature of the topological edge state(TES)is truly beneficial for nanophotonic devices that suffer from structural irregularities generated during device fabrication.Although various topological states and device concepts have been demonstrated in photonic systems,lasers based on a topological photonic crystal(PhC)cavity array with a wavelength-scale modal volume have not been explored.We investigated TESs in a PhC nanocavity array in the Su–Schrieffer–Heeger model.Upon optical excitation,the topological PhC cavity array realised using an InPbased multiple-quantum-well epilayer spontaneously exhibits lasing peaks at the topological edge and bulk states.TES characteristics,including the modal robustness caused by immunity to scattering,are confirmed from the emission spectra and near-field imaging and by theoretical simulations and calculations.展开更多
文摘Health care services during pregnancy and childbirth and after delivery are important for the survival and wellbeing of both the mother and the infant. The pregnancy outcomes at Kasungu District Hospital Maternity Ward have not been documented. Additionally, MDHS does not capture data regarding, prematurity, APGAR scores, and causes of maternal deaths and causes of neonatal deaths. Using Kasungu District Hospital Maternity Ward register, we aimed to describe the pregnancy outcomes at Kasungu Maternity Ward. From March 2016 to February 2017, data were available for 10,842 deliveries. The calculated Perinatal Mortality Rate (PMR) was about 77/1000 births and the Maternal Mortality Ratio (MMR) was 318 deaths per 100,000 live births. The Spontaneous Vertex Delivery (SVD) rate was 86% and the caesarean section rate was 10%. 1734 (16%) of all deliveries were premature borne between 28 and 36 gestation weeks. 1182 (11%) deliveries had missing APGAR scores and 81 neonates were born with 5 min Apgar scores less than 7. Adverse pregnancy outcomes occur at Kasungu Hospital Maternity Ward. More effort and resources are needed to decrease their occurrence.
基金supported by the Samsung Research Funding Centre of Samsung Electronics under Project Number SRFC-MA1801-02the National Research Foundation(NRF)grant funded by the Korea Government(Ministry of Education,Science and Technology)(no.2014R1A2A1A11051576).
文摘Topological photonics have provided new insights for the manipulation of light.Analogous to electrons in topological insulators,photons travelling through the surface of a topological photonic structure or the interface of two photonic structures with different topological phases are free from backscattering caused by structural imperfections or disorder.This exotic nature of the topological edge state(TES)is truly beneficial for nanophotonic devices that suffer from structural irregularities generated during device fabrication.Although various topological states and device concepts have been demonstrated in photonic systems,lasers based on a topological photonic crystal(PhC)cavity array with a wavelength-scale modal volume have not been explored.We investigated TESs in a PhC nanocavity array in the Su–Schrieffer–Heeger model.Upon optical excitation,the topological PhC cavity array realised using an InPbased multiple-quantum-well epilayer spontaneously exhibits lasing peaks at the topological edge and bulk states.TES characteristics,including the modal robustness caused by immunity to scattering,are confirmed from the emission spectra and near-field imaging and by theoretical simulations and calculations.
