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Floristic Composition, Population Structure, and Recruitment Status of Plant Species: A Case Study of Farmer-Managed Natural Regeneration Practices in Arid and Semi-Arid Lands in Kenya

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Open Journal of Forestry 2024年第2期14卷 141-154页

作者： simon Kosgei Choge Samson Okoth Ojunga Dub Isacko Dokata William Kimen Chepkirui Justus Musau Faith Milkah Muniale Ivan Kiplagat Kiptui Kenya Forestry Research Institute-Rift Valley Eco-Region Research Program Marigat Kenya Kenya Forestry Research Institute-Lake Victoria Eco-Region Research Program Kisumu Kenya Kenya Forestry Research Institute-Rift Valley Eco-Region Research Program Londiani Kenya CRIFSUP Project World Vision Kenya Nairobi Kenya

The technique of Farmer Managed Natural Regeneration (FMNR) is being promoted as a cost-effective approach for restoring degraded arable dry lands. Its effectiveness has been observed in many countries across the globe, where it is a traditional practice, and is now being encouraged across the African continent. This study aimed to evaluate the impact of FMNR on floristic Composition, Vegetation Structure, and Regeneration Status of woody Plant Species in the severely degraded Central Rift, Kenya. The study systematically assessed how FMNR influenced species composition, vegetation structure and regeneration status from two sample plots involved in FMNR practices. Transect lines and quadrats methods were utilized to collect data, specifically regarding the floristic composition, vegetation structure, and regeneration status of woody plant species. Quadrats and sub-quadrats of varying sizes (10 m by 10 m, 5 m by 5 m, and 1 m by 1 m) were nested along the transect lines for data collection. Furthermore, measurements of tree growth and development, including root collar diameter, diameter at breast height (D130) and heights within the study blocks, were taken. The data was then analyzed using R-software. Results showed a marked progressive increase in numbers of trees, saplings, seedlings, shrubs and herbs in all FMNR sites and reductions in all non-FMNR sites. The study advocates for widespread promotion of the FMNR practice both as an environmental conservation and restoration strategy.

关键词： Farmer Managed Natural Regeneration FMNR Floristic Composition Vegetation Structure Regeneration Biodiversity

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阿司匹林治疗代谢功能障碍相关无肝硬化脂肪变性肝病患者的临床研究

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中国临床药理学杂志 2024年第10期40卷 1540-1540页

作者： simon T G 吴焕贤

本研究是为期6个月的Ⅱ期临床试验,按照随机、双盲、安慰剂对照临床试验设计。受试者年龄在18至70岁之间,患有已确诊的非肝硬化代谢功能障碍相关脂肪性肝炎(metabolic dysfunction-associated steatotic liver disease,MASLD)。受试者... 详细信息

本研究是为期6个月的Ⅱ期临床试验,按照随机、双盲、安慰剂对照临床试验设计。受试者年龄在18至70岁之间,患有已确诊的非肝硬化代谢功能障碍相关脂肪性肝炎(metabolic dysfunction-associated steatotic liver disease,MASLD)。受试者随机分组(1:1),接受每日一次的阿司匹林81mg口服(n=40),或相同的安慰剂(n=40),持续6个月。

关键词：临床试验设计安慰剂对照 Ⅱ期临床试验脂肪变性阿司匹林治疗脂肪性肝炎代谢功能障碍肝病患者

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Rekindling Sino-U.S. Education Cooperation

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北京周报(英文版) 2024年第26期 22页

作者： Denis simon

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英国绍森德码头铁路列车牵引方式的变迁

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国外铁道机车与动车 2024年第1期 23-24,28页

作者： [英]simon Murdoch 李军亮(译) 张霓虹(校) 不详

英国绍森德码头号称全球最长休闲码头,码头铁路承载着英国发展的历史轨迹:从手推车到马拉车,从内燃牵引到如今的锂电池动力列车,运输装备不断更新换代。

关键词：绍森德码头铁路锂电池动力列车电气化铁路

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Piezo1 expression in chondrocytes controls endochondral ossification and osteoarthritis development

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Bone Research 2024年第1期12卷 199-214页

作者： Laura J.Brylka Assil-Ramin Alimy Miriam E.A.Tschaffon-Müller Shan Jiang Tobias Malte Ballhause Anke Baranowsky simon von Kroge Julian Delsmann Eva Pawlus Kian Eghbalian Klaus Püschel Astrid Schoppa Melanie Haffner-Luntzer David J.Beech Frank Timo Beil Michael Amling Johannes Keller Anita Ignatius Timur A.Yorgan Tim Rolvien Thorsten Schinke Department of Osteology and Biomechanics University Medical Center Hamburg-Eppendorf20246 HamburgGermany Department of Trauma and Orthopedic Surgery University Medical Center Hamburg-Eppendorf20246 HamburgGermany Institute of Orthopedic Research and Biomechanics University Medical Center UlmBadenWürttemberg89081 UlmGermany Department Legal Medicine University Medical Center Hamburg-Eppendorf20246 HamburgGermany Leeds Institute of Cardiovascular and Metabolic Medicine School of MedicineUniversity of LeedsLS29JT LeedsUK

Piezo proteins are mechanically activated ion channels,which are required for mechanosensing functions in a variety of cell *** we and others have previously demonstrated that the expression of Piezo1 in osteoblast lineage cells is essential for boneanabolic processes,there was only suggestive evidence indicating a role of Piezo1 and/or Piezo2 in *** we addressed the question if and how chondrocyte expression of the mechanosensitive proteins Piezo1 or Piezo2 controls physiological endochondral ossification and pathological osteoarthritis(OA)*** with chondrocyte-specific inactivation of Piezo1(Piezo1^(Col2a1Cre)),but not of Piezo2,developed a near absence of trabecular bone below the chondrogenic growth plate ***,all Piezo1^(Col2a1Cre) animals displayed multiple fractures of rib bones at 7 days of age,which were located close to the growth *** skeletal growth was only mildly affected in these mice,OA pathologies were markedly less pronounced compared to littermate controls at 60 weeks of ***,when OA was induced by anterior cruciate ligament transection,only the chondrocyte inactivation of Piezo1,not of Piezo2,resulted in attenuated articular cartilage ***,osteophyte formation and maturation were also reduced in Piezo1^(Col2a1Cre) *** further observed increased Piezo1 protein abundance in cartilaginous zones of human ***,we identified Ptgs2 and Ccn2 as potentially relevant Piezo1 downstream genes in ***,our data do not only demonstrate that Piezo1 is a critical regulator of physiological and pathological endochondral ossification processes,but also suggest that Piezo1 antagonists may be established as a novel approach to limit osteophyte formation in OA.

关键词： Piezo1 markedly ossification

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Design of face-hobbed spiral bevel gears with reduced maximum tooth contact pressure and transmission errors

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Chinese Journal of Aeronautics 2013年第3期26卷 777-790页

作者： Vilmos simon Budapest University of Technology and Economics Faculty of Mechanical Engineering Department for Machine Design

The aim of this study is to define optimal tooth modifications, introduced by appropriately chosen head-cutter geometry and machine tool setting, to simultaneously minimize tooth contact pressure and angular displacement error of the driven gear （transmission error） of face-hobbed spiral bevel gears. As a result of these modifications, the gear pair becomes mismatched, and a point contact replaces the theoretical line contact. In the applied loaded tooth contact analysis it is assumed that the point contact under load is spreading over a surface along the whole or part of the ‘‘potential’’ contact line. A computer program was developed to implement the formulation provided above. By using this program the influence of tooth modifications introduced by the variation in machine tool settings and in head cutter data on load and pressure distributions, transmission errors, and fillet stresses is investigated and discussed. The correlation between the ease-off obtained by pinion tooth modifications and the corresponding tooth contact pressure distribution is investigated and the obtained results are presented.

关键词： Ease-off Face-hobbed spiral bevel gears Load distribution Transmission errors Gear teeth

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Looking into the future of Nanoelectronics in the Diversification Efficient Era

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Science China(Information Sciences) 2016年第6期59卷 6-19页

作者： simon DELEONIBUS Universit′es Grenoble Alpes CEA LETIMINATEC Campus

The linear scaling of CMOS has encountered, since its beginning, many hurdles which request new process modules, driven mainly by the maximization of energy efficiency. Fabrication at the sub 10 nm node level will request Intrinsic Variability approaching to zero. The rapid growth of mobile, multifunctional and autonomous systems is hardly demanding to reach Zero Power consumption. The solutions to integrate Thin Film based devices, architectures and systems in order to face these challenges are described.

关键词： CMOS thin films heterogeneous integration NEMS 3D integration sequential parallel zero intrinsic variability zero power systems

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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

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Economy Function in the Mode of Sustainable Development

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Advances in Pure Mathematics（理论数学进展） 2024年第4期 242页

作者： Nicholas simon Gonchar

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安全高效熏蒸助力节粮减损

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粮油食品科技 2024年第3期32卷 I0006-I0007页

作者：安德鲁·迪克斯西蒙·麦科迪澳大利亚默多克大学

澳大利亚默多克大学始建于1973年,主校区位于澳大利亚西澳州首府珀斯,学校占地227公顷,澳大利亚的特色植物将校园点缀得格外漂亮,是一所门类齐全的综合研究型大学,共有2.4万名在校学生。在迪拜、新加坡和马来西亚设有分校区,81%的教师... 详细信息

澳大利亚默多克大学始建于1973年,主校区位于澳大利亚西澳州首府珀斯,学校占地227公顷,澳大利亚的特色植物将校园点缀得格外漂亮,是一所门类齐全的综合研究型大学,共有2.4万名在校学生。在迪拜、新加坡和马来西亚设有分校区,81%的教师拥有博士学位。它以一流的教学和科研工作在世界上享有较高的知名度。默多克大学还是唯一一所连续五年获得五星级毕业满意度的院校,这是澳大利亚其它大学所无法比拟的。

关键词：默多克博士学位分校区一所澳大利亚特色植物教学和科研满意度

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