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Stratification of selected hydrolytic enzyme activities in the sediment in two lakes in Finland

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International Journal of Sediment Research 2012年第2期27卷 250-258页

作者： mika A.KHKnen Risto HAKULInen Department of Food and Environmental Sciences Division of MicrobiologyPOB 56Viikki BiocenterHelsinki UniversityFIN 00014Finland

To investigate the stratification of hydrolytic enzyme activities and importance of subsurface layers in depolymerization of detritus biopolymers,nine hydrolytic enzyme activities involved in the cycling of carbon,phosphorus,nitrogen and sulphur were measured in various sediment layers and their extracts at Kylaniemi in Lake Saimaa in southern Finland and in Lake Ahvenjarvi in northern Finland. The results show that for each lake all nine hydrolytic enzyme activities were higher in all sediment layers than in comparable sediment extracts indicating that the major part of enzymes was bound to the sediment particles in all layers in both ***,P-cellobiosidase,activities did not show any gradient with sediment depth at Kylaniemi in Lake Saimaa indicating that there was rapid turnover of carbohydrates in the entire sediment *** activities of acetate esterase,butyrate esterase,phosphomonoesterase,aminopeptidase,N-acetyl glucosaminidase,sulphatase andβ-glucosidase in the deepest layers were 19-53%of those in the surface sediment indicating that depolymerization of biopolymers involved in the cycling of carbon,nitrogen,phosphorus and sulphur was substantial in subsurface sediment.

关键词： Detritus Hydrolytic enzyme activities Lake sediment

Potential of organic waste to energy and bio-fertilizer production in Sub-Saharan Africa:a review

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Waste Disposal and Sustainable Energy 2023年第3期5卷 259-267页

作者： isaac Rubagumya Allan John Komakech isa Kabenge Nicholas Kiggundu Department of Agricultural and Biosystems Engineering Makerere UniversityP.O.Box 7062KampalaUganda

Many growing cities of Sub-Saharan Africa(SSA)are marred by the inefficient collection,management,disposal and reuse of organic *** purpose of this study was to review and compare the energy recovery potential as well as bio-fertilizer perspective,from the organic waste volumes generated in SSA *** on computations made with a literature review,we find that the amount of organic wastes varies across countries translating to differences in the energy and bio-fertilizer production potentials across *** wastes generated in SSA can potentially generate about 133 million GWh of energy per *** organic waste to bio-fertilizer production potentials range from 11.08 million tons to 306.26 million tons *** has the highest energy and bio-fertilizer potential among the SSA countries with a total per capita of 630 MWh/year and 306.26 million tons,*** challenges and technical considerations for energy and bio-fertilizer approaches in the management of organic waste in SSA have also been *** study is of help to the readers and strategic decision makers in understanding the contribution of bioenergy and bio-fertilizer to achieving sustainable development goals,namely,7(Affordable and Clean Energy)and 13(Climate Action)in SSA.

关键词： Sub-Saharan Africa Organic waste Energy production Bio-fertilizer production Challenges

Spontaneous Infection of Ascites Fluid at the National and University Hospital Hubert Koutoukou Maga in Cotonou: Prevalence and Associated Factors

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Open Journal of Gastroenterology 2024年第1期14卷 1-10页

作者： Aboudou raïmi Kpossou Comlan N’dehougbèa Martin Sokpon Chloé Andréa Obekandon Opè Mahouton Jacques Tovizounkou Kadiatou Diallo Rodolph Koffi Vignon Jean Séhonou University Clinic of Hepato-Gastroenterology National and University Hospital Hubert Koutoukou Maga (CNHU-HKM) Cotonou Benin University Clinic of Internal Medicine CNHU-HKM Cotonou Benin Department of Internal Medicine Donka National Hospital Conakry Guinea

Background: Spontaneous ascites fluid infection (SAFI) is an extremely serious and frequently encountered complication in cirrhotic patients. We aimed to determine the prevalence of SAFI and the factors associated with it in the largest hospital in Cotonou. Methods: This was a retrospective descriptive and analytical study conducted from January 2013 to July 2019, at the National and University Hospital Hubert Koutoukou Maga (CNHU-HKM) in Cotonou, Benin. All patients followed in the University Clinic of Hepato-Gastroenterology and diagnosed with SAFI were included. Results: Eighty-two patients were included, predominantly males (69.5%), with a mean age of 51.5 ± 14.5 years. Among them, 32 had SAFI, i.e., a prevalence of 39%. Of the 32 cases of SAFI, the culture of ascites fluid was positive in 6 cases (18.7%). The most frequent germ found in SAFI was Escherichia coli (5 patients, 83.3%). The factors associated with SAFI in this study were: abdominal pain (p = 0.004), increased bilirubinemia (p = 0.009), decreased prothrombin level 20 (p = 0.001). Conclusion: SAFI was common in cirrhotic patients in the department. Certain clinical and paraclinical factors were associated with it, as was the severity of cirrhosis. Early diagnosis and aetiological management of cirrhosis could reduce its frequency.

关键词： Ascites Infection Cirrhosis Cotonou

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金闪闪的生活玫瑰金公寓

室内设计与装修 2024年第9期 46-50页

作者： [西班牙]raúl Sánchez JoséHevia(摄影) coco(编译) raúl Sánchez

玫瑰金公寓位于巴塞罗那,夹在En#sanche Derecho宽敞的内部庭院和Enric Granados街之间,面积为85m^(2)。原平面很方正,标准的公寓户型,只在入口处有一个很小的L形的入户庭院。设计师希望能充分利用这个入户庭院,将它与公寓最里面的阳台... 详细信息

玫瑰金公寓位于巴塞罗那,夹在En#sanche Derecho宽敞的内部庭院和Enric Granados街之间,面积为85m^(2)。原平面很方正,标准的公寓户型,只在入口处有一个很小的L形的入户庭院。设计师希望能充分利用这个入户庭院,将它与公寓最里面的阳台贯通,使空气对流。重新布局后的公寓,通道位于中心位置,连通阳台和入户庭院。从入户庭院开始,穿过两侧的卧室,到达宽敞的公共空间,包括一侧的客厅和另一侧的餐厅厨房。

关键词：空气对流巴塞罗那玫瑰金公寓公共空间庭院

Epidemiological Aspects of Stillbirth and Neonatal Deaths in the Delivery Room at the Libreville Mother-Child University Hospital from 2019 to 2022

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Open Journal of Pediatrics 2024年第1期14卷 1-10页

作者： Eliane Kuissi Kamgaing Jacques Albert Bang Ntamack Opheelia Makoyo Komba raïssa Koumba Maniaga Steeve Minto’o Rogombe Pascal Loulouga Badinga Aude Lembet Mikolo Simon Ategbo Department of Neonatal Medicine Jeanne Ebori Foundation Mother-Child University Hospital (JEFMCUH) of Libreville Libreville Gabon Department of Gynaecology and Obstetrics Jeanne Ebori Foundation (JEFMCUH) of Libreville Libreville Gabon Department of Paediatrics University of Health Sciences Libreville Gabon

Introduction: Stillbirths are estimated at 2 million each year, of which more than 40% occur during labour. Our objective was to study the epidemiological aspects of stillbirth and neonatal deaths in the delivery room in our health facility. Patients and methods: Prospective, descriptive and analytical study, conducted at the Jeanne Ebori Foundation Mother-Child University Hospital over 4 years (January 2019-December 2022). All neonatal deaths in the delivery room or foetal death in utero, were included. Results: Among the 18,346 deliveries performed, 512 newborns were declared dead in the delivery room (27.9‰ live births), divided into in utero foetal death (19.0‰) and immediate neonatal death (8.9‰). The mean age was 34.3 weeks of amenorrhea. The rate of preterm birth was 60.4%. The sex ratio was 1.1. The average weight was 2186.6. The main causes were vascular (46.1%), foetal (20.2%), adnexal (17.1%) and asphyxia per partum (16.6%). Foetal causes were more likely to result in IUFD than other causes (OR = 6.4 [2.4 - 15.7], p < 0.001). After birth, partum asphyxia was more likely to lead to death before 15 minutes of life than other causes (OR = 11 [6.1 - 18.9], p Conclusion: The causes of stillbirth and early neonatal mortality are dominated by maternal vascular pathologies. However, the proportion of childbirth-related causes remains worrying. Better monitoring of pregnancy and labour will minimize this prevalence in our hospital.

关键词： Stillbirth Neonatal Death Delivery Room Epidemiology Libreville-Gabon

Mean-field stochastic differential equations with a discontinuous diffusion coefficient

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Probability, Uncertainty and Quantitative Risk 2023年第3期8卷 351-372页

作者： Jani Nykänen Department of Mathematics and Statistics University of JyväskyläP.O.Box 35FI-40014Finland

We study R^(d)-valued mean-field stochastic differential equations with a diffusion coefficient that varies in a discontinuous manner on the L_(p)-norm of the *** establish the existence of a unique global strong solution in the presence of a robust drift,while also investigating scenarios where the presence of a global solution is not assured.

关键词： Mean-field stochastic differential equation Discontinuous diffusion coefficient Existence and nonexistence of strong solutions in L_(p)

基于Hadamard product优化多层神经网络的胸部电阻抗成像研究

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生物医学工程学杂志 2024年第3期41卷 439-446,454页

作者：宋振忠李建平温建明万嫩马继杰张昱胡意立高增锋浙江师范大学工学院浙江省城市轨道交通智能运维技术与装备重点实验室精密机械与智能结构研究所浙江金华321004 千叶大学融合理工学府日本千叶263-8522

电阻抗成像(EIT)是一种无辐射、非侵入式的可视化诊断技术。为提高胸部电阻抗成像技术重建算法的成像分辨率和去伪影能力,本研究提出了一种利用Hadamard product优化多层神经网络(MANN)的HMANN算法。将HMANN算法的重建图像与广义矢量模... 详细信息

电阻抗成像(EIT)是一种无辐射、非侵入式的可视化诊断技术。为提高胸部电阻抗成像技术重建算法的成像分辨率和去伪影能力,本研究提出了一种利用Hadamard product优化多层神经网络(MANN)的HMANN算法。将HMANN算法的重建图像与广义矢量模式匹配(GVSPM)算法、截断奇异值分解(TSVD)算法、反向传播(BP)神经网络算法和传统MANN算法的重建图像进行对比,仿真结果表明:相对于MANN算法,HMANN算法重建图像的相关系数在圆截面模型中可以提高17.30%,在肺截面模型中可以提高13.98%。虽然肺截面模型中HMANN算法重建图像的部分相关系数会有所下降,但在所有模型中,HMANN算法保留了MANN算法的图像信息,同时HMANN算法重建图像的伪影更少,检测目标与背景的可识别度比传统MANN算法高。本研究可以提升重建图像的相关系数,有效去除重建图像的伪影,为EIT成像技术提供了一种有效提升重建图像质量的新思路。

关键词：电阻抗成像多层神经网络 Hadamardproduct 伪影

Adaptive Fault Detection Scheme Using an Optimized Self-healing Ensemble Machine Learning Algorithm

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CSEE Journal of Power and Energy Systems 2022年第4期8卷 1145-1156页

作者： Levent Yavuz Ahmet Soran AhmetÖnen Xiangjun Li S.M.Muyeen Electrical and Computer Engineering Department in Abdullah Gül University Kayseri 38080Turkey Department of Electrical and Computer Engineering College of EngineeringSultan Qaboos UniversityAl-KhoudMuscat123Oman Department of Electrical Engineering Qatar UniversityDoha 2713Qatar State Key Laboratory of Control and Operation of Renewable Energy and Storage Systems China Electric Power Rescarch InstituteBeijing 100192China

This paper proposes a new cost-efficient,adaptive,and self-healing algorithm in real time that detects faults in a short period with high accuracy,even in the situations when it is difficult to *** than using traditional machine learning(ML)algorithms or hybrid signal processing techniques,a new framework based on an optimization enabled weighted ensemble method is developed that combines essential ML *** the proposed method,the system will select and compound appropriate ML algorithms based on Particle Swarm Optimization(PSO)*** this purpose,power system failures are simulated by using the PSCA D-Python *** of the salient features of this study is that the proposed solution works on real-time raw data without using any pre-computational techniques or pre-stored ***,the proposed technique will be able to work on different systems,topologies,or data *** proposed fault detection technique is validated by using PSCAD-Python co-simulation on a modified and standard IEEE-14 and standard IEEE-39 bus considering network faults which are difficult to detect.

关键词： Decision tree(DT) ensemble machine learning algorithm fault detection islanding operation k-Nearest Neighbor(kNN) linear discriminant analysis(LDA) logistic regression(LR) Naive Bayes(NB) self-healing algorithm

Ductal carcinoma in situ within a fibroadenoma:A case report and review of literature

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World Journal of radiology 2024年第3期16卷 58-68页

作者： Yazmin Olivares-Antúnez Yesika Janett Dávila-Zablah Joséraúl Vázquez-Ávila Gabriela Sofía Gómez-Macías María Teresa Mireles-Aguilar Margarita Lilia Garza-Montemayor Department of Diagnostic Breast Imaging Center Hospital Zambrano HellionTecnológico de MonterreyNuevo León 66260Mexico Department of Patology Service Hospital San JoséTecnológico de MonterreyNuevo León 64710Mexico Department of Faculty of Medicine Hospital Universitario de la UANLNuevo León 64710Mexico. Department of Breast Surgery Center Hospital Zambrano HellionTecnológico de MonterreyNuevo León 66260Mexico

BACKGROUND Fibroadenoma(FA)is the most common tumor found in young women,although it can occur in any age *** carcinoma in situ(DCIS)that is confined in a FA is rare;it is most frequently reported as an incidental *** SUMMARY We report a case of DCIS within a FA in a 46-year-old female without cancerrelated personal and family *** patient was diagnosed with a breast conglomerate of nodules and was followed for 1 *** the current control image study,we found suspicious microcalcification,as a new finding,within one of the ***,a core biopsy of the tumor,which appeared hypoechoic,oval,and circumscribed,was *** pathological diagnosis was ductal carcinoma in situ within a fibroepithelial *** patient underwent breastconserving surgery and received radiotherapy as well as endocrine therapy(tamoxifen).CONCLUSION We recommend a multidisciplinary approach for adequate treatment and followup.

关键词： Carcinoma in situ Fibroadenoma Mammography Ultrasound Magnetic resonance imaging radiology Case report