Introduction: The occurrence of pregnancy in women is a risky situation. Prenatal care is necessary, which is not often the case in our context. Aim: To analyze the influence of antenatal surveillance on maternal and ...Introduction: The occurrence of pregnancy in women is a risky situation. Prenatal care is necessary, which is not often the case in our context. Aim: To analyze the influence of antenatal surveillance on maternal and perinatal prognosis. Patients and Method: Preliminary longitudinal and analytical survey at the Owendo University Hospital (OHU) over 6 months. It focused on prenatal surveillance. The study population consisted of parturients who gave birth within 24 hours and we studied sociodemographic characteristics, variables related to antenatal contact, those of delivery as well as maternal and newborn outcomes. Results: 2485 deliveries were recorded and 1300 patients were retained according to the inclusion criteria. No prenatal contact (ANC0) was performed in 93 (7.15%), insufficient (ANCI) in 943 patients (72.5%), and sufficient (ANCS) in 264 patients (20.30%). Patients with low school level were significantly found when the NPC was not performed or insufficient and the same was true for the group of patients who were not employed and those who were single (p < 0.005). The caesarean section rate and perinatal mortality are high in this case. Conclusion: The quality of prenatal contact is insufficient in our context. The absence or inadequacy of the latter has a strong negative impact on maternal and perinatal morbidity and mortality.展开更多
Aiming to investigate the mix design of eco-friendly UHPC with supplementary cementitious materials and coarser aggregates, we comprehensively studied the workability, microstructure, porosity, compressive strength, f...Aiming to investigate the mix design of eco-friendly UHPC with supplementary cementitious materials and coarser aggregates, we comprehensively studied the workability, microstructure, porosity, compressive strength, flexural strength, and Young’s modulus of UHPC. Relationship between compressive strength and Young’s modulus was obtained eventually. It is found that the compressive strength, flexural strength, and Young’s modulus of UHPC increase by 19.01%, 10.81%, and 5.99%, respectively, when 40 wt% cement is replaced with supplementary cementitious materials. The relationship between compressive strength and Young’s modulus of UHPC is an exponential form.展开更多
The semiclassical transport equations are used to study the high frequency performance of AlGaAs / GaAs HBTs. Electron velocity overshoot effect and its influence on the cut off frequency characteristics of AlGaAs / G...The semiclassical transport equations are used to study the high frequency performance of AlGaAs / GaAs HBTs. Electron velocity overshoot effect and its influence on the cut off frequency characteristics of AlGaAs / GaAs HBTs with different collector design parameters are analyzed and discussed.展开更多
This study assessed whether there was a scat tering spectral mar ker quantifiable by reflectance measurements that could indicate early development of hepatic steatosis in rats for potential applications to pre procur...This study assessed whether there was a scat tering spectral mar ker quantifiable by reflectance measurements that could indicate early development of hepatic steatosis in rats for potential applications to pre procurement organ evaluation.Sixteen rats were fed a methionine choline-deficient(MCD)diet and eight rats were fed a normal diet.Direct assessment of the liver parenchyma of rats in vivo was performed by percut aneous reflect ance spectroscopy using a single fiber probe at the beginning of diet-intake and arbitrary post-diet-intake times up to 11 weeks to render longitudinal comparison.Histological sampling of the liver over the duration of diet adm inistration was performed on two MCD diet treated rats and one control rat eutha-nized after reflectance spectroscopy measurement.The images of hematoxylin/eosin-stained liver specimens were analyzed morphometrically to evahuate the lipid size changes associated with the level of steatosis.The MCD-diet-treated group(n=16)had mild steatosis in seven rats,moderate in three rats,severe in six rats,and no other significant pathology.No control rats(n=8)developed hepatic steatosis.Among the parameters retrieved from per-SfS,only the scat tering power(can be either positive or negative)appeared to be statist ically diferent between MCD-treated and control livers.The scattering power for the 16 MCD-diet-treated livers at the time of euthanasia and presenting various levels of steatosis was 033±0.21,in comparison to 0.036±0.25 of the eight control livers(p=0.0189).When evaluated at days 12 and 13 combined,the scattering power of the 16 MCD-diet-treated livers was 032±0.17,in comparison to 0.10±0.11 of the eight control livers(p=0.0017).All of four MCD-treated livers harvested at days 12 and 13 presented mild steatosis with sub-micron size lipid droplets,even though none of the MCD-treated livers were sonogr aphically remarkable for fatty changes.The elevation of the scattering power may be a valuable marker indicating early hepatic steatosis before the steatosis is sonographically detectable.展开更多
The synthesis of water-soluble quantum dots(QDs)has recently received extensive attention dueto noninvasive detection of biological information in living subjects.In this paper,high-qualitywater-soluble(cadmium-free)q...The synthesis of water-soluble quantum dots(QDs)has recently received extensive attention dueto noninvasive detection of biological information in living subjects.In this paper,high-qualitywater-soluble(cadmium-free)quaternary AgZnlnS QDs have been successfully synthesized usinga green synthetic route.The as-prepared QDs exhibit tunable photoluminescence(PL)emissionbetween 521 and 658 nm.Secondly,multidrug resistance(MDR)is a major impedinent to theeffective cancer chemot herapy,DOx,a widely used antit umor drug was modified on the surfaceof the QDs in this study.It,therefore,ignificantly enhanced the cytotoxicity of DX to MDRcancer cells as the QDs could bring the DoX to nucleus.展开更多
Introduction: Globally every year 529,000 maternal deaths occur, 99% of this in developing coun-tries. Uganda has high maternal and neonatal morbidity and mortality ratios, typical of many countries in sub-Saharan Afr...Introduction: Globally every year 529,000 maternal deaths occur, 99% of this in developing coun-tries. Uganda has high maternal and neonatal morbidity and mortality ratios, typical of many countries in sub-Saharan Africa. Recent findings reveal maternal mortality ratio of 435:100,000 live births and neonatal mortality rate of 29 deaths per 1000 live births in Uganda;these still remain a challenge. Women in rural areas of Uganda are two times less likely to attend ANC than the urban women. Most women in Uganda have registered late ANC attendance, averagely at 5.5 months of pregnancy and do not complete the required four visits. The inadequate utilization of ANC is greatly contributing to persisting high rates of maternal and neonatal mortality in Uganda. This study was set to identify the factors associated with late booking and inadequate utilization of Antenatal Care services in upcountry areas of Uganda. Method: Cross-sectional study design with mixed methods of interviewer administered questionnaires, focus group discussions and key informant interviews. Data was entered using Epidata and analyzed using Stata into frequency tables using actual tallies and percentages. Ethical approval was sought from SOM-REC MakCHS under approval number “#REC REF 2012-117” before conducting the study. Results: A total of four hundred one were enrolled with the majority being in the age group 20 - 24 years (mean age, 25.87 ± 6.26). Health workers played a great role (72.04%), followed by the media (15.46%) and friends (12.50%) in creating awareness about ANC. A significant number of respondents went to TBAs with reasons such as “near and accessible”, “my husband decided”, and “they are the only people I know”. 37.63% of the respondents considered getting an antenatal Card as an importance of ANC. 71 (19.67%) respondents gave a wrong opinion (late) on booking time with reasons like demands at work, no problems during pregnancy, advised by friends, just to get a card, long distance and others didn’t know. Almost half of the respondents never knew the recommended number of visits. Religion, occupation, level of education, and parity were found to influence place of ANC attendance, number of ANC visits and booking time. Husbands were necessary to provide financial support, accompany their wives ANC clinic, and ensure that they complete the visits. But their response was poor due to: fear of routine investigations and constrained economically. Conclusion: The study findings show the actual rural setting of ANC services attendance and utilization. Much sensitization has to be done specifically in these rural areas to empower pregnant women and their husbands as to improve ANC attendance and utilization.展开更多
Lynas selects Kalgoorlie for new cracking&leaching plant Lynas Corporation Limited(ASX:LYC,OTC:LYSDY)("Lynas")announced that Kalgoorlie,Western Australia,has been selected as the location for its new cra...Lynas selects Kalgoorlie for new cracking&leaching plant Lynas Corporation Limited(ASX:LYC,OTC:LYSDY)("Lynas")announced that Kalgoorlie,Western Australia,has been selected as the location for its new cracking and leaching plant,creating new jobs and a first step in establishing a critical minerals hub in the Goldfields region.展开更多
五十多年前,秉承‘与吾为伍’的精神,AMG的创始者打造了扬名赛道的品牌开山之作--‘红猪’300 SEL 6.8 AMG。眼下正值AMG品牌诞生55周年,全新梅赛德斯-AMG C 63 S E PERFORMANCE又将在现代汽车市场的舞台上,凭借混动技术打造的卓越性能...五十多年前,秉承‘与吾为伍’的精神,AMG的创始者打造了扬名赛道的品牌开山之作--‘红猪’300 SEL 6.8 AMG。眼下正值AMG品牌诞生55周年,全新梅赛德斯-AMG C 63 S E PERFORMANCE又将在现代汽车市场的舞台上,凭借混动技术打造的卓越性能,为用户提供优秀驾乘体验,再塑性能豪华的新标杆。展开更多
Background: Despite persistent efforts to improve maternal health through various interventions, Guinea faces challenges in achieving adequate antenatal care coverage (ANC). This study aims to identify the key factors...Background: Despite persistent efforts to improve maternal health through various interventions, Guinea faces challenges in achieving adequate antenatal care coverage (ANC). This study aims to identify the key factors influencing prenatal consultation in Guinea. Methods: A secondary analysis was conducted on Guinea’s 2018 Demographic and Health Survey (DHS) data. The study sample comprised women aged 15 - 49 who participated in the survey. Logistic regression was employed to identify the determinants of ANC utilisation. Results: Most women in the sample (59.1%) were aged between 18 and 30, resided in rural areas (69.8%), had no formal education (71.0%), had low incomes (43.4%), were married (91.4%), relied on the radio for information (63.4%), and were employed at the time of the survey (68.0%). The study identified several factors acting as barriers to meeting the recommended four ANC visits, including low education levels, with odds ratios (OR) of 0.43 (p = 0.011) for those with no schooling and 0.48 (p = 0.046) for those with primary-level education. Lack of radio access also negatively influenced ANC utilisation with an OR of 0.72 (p = 0.012). Additionally, delayed timing of the first ANC visit in the second trimester had an OR of 0.36 (p 0.001), while in the third trimester, the OR was 0.04 (p 0.004). On the other hand, factors that facilitated achieving the recommended four ANC visits included having an average wealth quintile with an OR of 1.63 (p = 0.002) and being wealthy with an OR of 2.30 (p 0.001). Conclusion: This study underscores the negative association between low education level and poverty with ANC utilisation among pregnant women in Guinea. These findings emphasise the need for targeted interventions to address the barriers faced by vulnerable populations and improve maternal healthcare access and utilisation in the country.展开更多
文摘Introduction: The occurrence of pregnancy in women is a risky situation. Prenatal care is necessary, which is not often the case in our context. Aim: To analyze the influence of antenatal surveillance on maternal and perinatal prognosis. Patients and Method: Preliminary longitudinal and analytical survey at the Owendo University Hospital (OHU) over 6 months. It focused on prenatal surveillance. The study population consisted of parturients who gave birth within 24 hours and we studied sociodemographic characteristics, variables related to antenatal contact, those of delivery as well as maternal and newborn outcomes. Results: 2485 deliveries were recorded and 1300 patients were retained according to the inclusion criteria. No prenatal contact (ANC0) was performed in 93 (7.15%), insufficient (ANCI) in 943 patients (72.5%), and sufficient (ANCS) in 264 patients (20.30%). Patients with low school level were significantly found when the NPC was not performed or insufficient and the same was true for the group of patients who were not employed and those who were single (p < 0.005). The caesarean section rate and perinatal mortality are high in this case. Conclusion: The quality of prenatal contact is insufficient in our context. The absence or inadequacy of the latter has a strong negative impact on maternal and perinatal morbidity and mortality.
基金Funded by the National Natural Science Foundation of China,China(No.51438003)the National Key R&D Program of China,China(2018YFC0705400)
文摘Aiming to investigate the mix design of eco-friendly UHPC with supplementary cementitious materials and coarser aggregates, we comprehensively studied the workability, microstructure, porosity, compressive strength, flexural strength, and Young’s modulus of UHPC. Relationship between compressive strength and Young’s modulus was obtained eventually. It is found that the compressive strength, flexural strength, and Young’s modulus of UHPC increase by 19.01%, 10.81%, and 5.99%, respectively, when 40 wt% cement is replaced with supplementary cementitious materials. The relationship between compressive strength and Young’s modulus of UHPC is an exponential form.
文摘The semiclassical transport equations are used to study the high frequency performance of AlGaAs / GaAs HBTs. Electron velocity overshoot effect and its influence on the cut off frequency characteristics of AlGaAs / GaAs HBTs with different collector design parameters are analyzed and discussed.
基金a health search grant HR11-043 from the Oklahoma Center for the Advancement of Science and Technology(OCAST)and in part by the Kerr Foundationthe Graduate Program on Interdisciplinary Sciences,Oklahoma State University,Stillwater,OK 74078,USA.Currently,Ms.Nigar Sultana is with P3 Group,Southfield,MI 48034,USA.
文摘This study assessed whether there was a scat tering spectral mar ker quantifiable by reflectance measurements that could indicate early development of hepatic steatosis in rats for potential applications to pre procurement organ evaluation.Sixteen rats were fed a methionine choline-deficient(MCD)diet and eight rats were fed a normal diet.Direct assessment of the liver parenchyma of rats in vivo was performed by percut aneous reflect ance spectroscopy using a single fiber probe at the beginning of diet-intake and arbitrary post-diet-intake times up to 11 weeks to render longitudinal comparison.Histological sampling of the liver over the duration of diet adm inistration was performed on two MCD diet treated rats and one control rat eutha-nized after reflectance spectroscopy measurement.The images of hematoxylin/eosin-stained liver specimens were analyzed morphometrically to evahuate the lipid size changes associated with the level of steatosis.The MCD-diet-treated group(n=16)had mild steatosis in seven rats,moderate in three rats,severe in six rats,and no other significant pathology.No control rats(n=8)developed hepatic steatosis.Among the parameters retrieved from per-SfS,only the scat tering power(can be either positive or negative)appeared to be statist ically diferent between MCD-treated and control livers.The scattering power for the 16 MCD-diet-treated livers at the time of euthanasia and presenting various levels of steatosis was 033±0.21,in comparison to 0.036±0.25 of the eight control livers(p=0.0189).When evaluated at days 12 and 13 combined,the scattering power of the 16 MCD-diet-treated livers was 032±0.17,in comparison to 0.10±0.11 of the eight control livers(p=0.0017).All of four MCD-treated livers harvested at days 12 and 13 presented mild steatosis with sub-micron size lipid droplets,even though none of the MCD-treated livers were sonogr aphically remarkable for fatty changes.The elevation of the scattering power may be a valuable marker indicating early hepatic steatosis before the steatosis is sonographically detectable.
文摘The synthesis of water-soluble quantum dots(QDs)has recently received extensive attention dueto noninvasive detection of biological information in living subjects.In this paper,high-qualitywater-soluble(cadmium-free)quaternary AgZnlnS QDs have been successfully synthesized usinga green synthetic route.The as-prepared QDs exhibit tunable photoluminescence(PL)emissionbetween 521 and 658 nm.Secondly,multidrug resistance(MDR)is a major impedinent to theeffective cancer chemot herapy,DOx,a widely used antit umor drug was modified on the surfaceof the QDs in this study.It,therefore,ignificantly enhanced the cytotoxicity of DX to MDRcancer cells as the QDs could bring the DoX to nucleus.
文摘Introduction: Globally every year 529,000 maternal deaths occur, 99% of this in developing coun-tries. Uganda has high maternal and neonatal morbidity and mortality ratios, typical of many countries in sub-Saharan Africa. Recent findings reveal maternal mortality ratio of 435:100,000 live births and neonatal mortality rate of 29 deaths per 1000 live births in Uganda;these still remain a challenge. Women in rural areas of Uganda are two times less likely to attend ANC than the urban women. Most women in Uganda have registered late ANC attendance, averagely at 5.5 months of pregnancy and do not complete the required four visits. The inadequate utilization of ANC is greatly contributing to persisting high rates of maternal and neonatal mortality in Uganda. This study was set to identify the factors associated with late booking and inadequate utilization of Antenatal Care services in upcountry areas of Uganda. Method: Cross-sectional study design with mixed methods of interviewer administered questionnaires, focus group discussions and key informant interviews. Data was entered using Epidata and analyzed using Stata into frequency tables using actual tallies and percentages. Ethical approval was sought from SOM-REC MakCHS under approval number “#REC REF 2012-117” before conducting the study. Results: A total of four hundred one were enrolled with the majority being in the age group 20 - 24 years (mean age, 25.87 ± 6.26). Health workers played a great role (72.04%), followed by the media (15.46%) and friends (12.50%) in creating awareness about ANC. A significant number of respondents went to TBAs with reasons such as “near and accessible”, “my husband decided”, and “they are the only people I know”. 37.63% of the respondents considered getting an antenatal Card as an importance of ANC. 71 (19.67%) respondents gave a wrong opinion (late) on booking time with reasons like demands at work, no problems during pregnancy, advised by friends, just to get a card, long distance and others didn’t know. Almost half of the respondents never knew the recommended number of visits. Religion, occupation, level of education, and parity were found to influence place of ANC attendance, number of ANC visits and booking time. Husbands were necessary to provide financial support, accompany their wives ANC clinic, and ensure that they complete the visits. But their response was poor due to: fear of routine investigations and constrained economically. Conclusion: The study findings show the actual rural setting of ANC services attendance and utilization. Much sensitization has to be done specifically in these rural areas to empower pregnant women and their husbands as to improve ANC attendance and utilization.
文摘Lynas selects Kalgoorlie for new cracking&leaching plant Lynas Corporation Limited(ASX:LYC,OTC:LYSDY)("Lynas")announced that Kalgoorlie,Western Australia,has been selected as the location for its new cracking and leaching plant,creating new jobs and a first step in establishing a critical minerals hub in the Goldfields region.
文摘五十多年前,秉承‘与吾为伍’的精神,AMG的创始者打造了扬名赛道的品牌开山之作--‘红猪’300 SEL 6.8 AMG。眼下正值AMG品牌诞生55周年,全新梅赛德斯-AMG C 63 S E PERFORMANCE又将在现代汽车市场的舞台上,凭借混动技术打造的卓越性能,为用户提供优秀驾乘体验,再塑性能豪华的新标杆。
文摘Background: Despite persistent efforts to improve maternal health through various interventions, Guinea faces challenges in achieving adequate antenatal care coverage (ANC). This study aims to identify the key factors influencing prenatal consultation in Guinea. Methods: A secondary analysis was conducted on Guinea’s 2018 Demographic and Health Survey (DHS) data. The study sample comprised women aged 15 - 49 who participated in the survey. Logistic regression was employed to identify the determinants of ANC utilisation. Results: Most women in the sample (59.1%) were aged between 18 and 30, resided in rural areas (69.8%), had no formal education (71.0%), had low incomes (43.4%), were married (91.4%), relied on the radio for information (63.4%), and were employed at the time of the survey (68.0%). The study identified several factors acting as barriers to meeting the recommended four ANC visits, including low education levels, with odds ratios (OR) of 0.43 (p = 0.011) for those with no schooling and 0.48 (p = 0.046) for those with primary-level education. Lack of radio access also negatively influenced ANC utilisation with an OR of 0.72 (p = 0.012). Additionally, delayed timing of the first ANC visit in the second trimester had an OR of 0.36 (p 0.001), while in the third trimester, the OR was 0.04 (p 0.004). On the other hand, factors that facilitated achieving the recommended four ANC visits included having an average wealth quintile with an OR of 1.63 (p = 0.002) and being wealthy with an OR of 2.30 (p 0.001). Conclusion: This study underscores the negative association between low education level and poverty with ANC utilisation among pregnant women in Guinea. These findings emphasise the need for targeted interventions to address the barriers faced by vulnerable populations and improve maternal healthcare access and utilisation in the country.