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Hematology and blood serum chemistry reference intervals for children in Iganga district of Uganda

Health 2013年第8期5卷 1261-1267页

作者： Fred Kironde Musa Sekikubo Halima Naiwumbwe Fatuma Namusoke William Buwembo Steven Kiwuwa Brenda Oketch Ramadhani Noor Roma Chilengi edison mworozi Mark Kaddumukasa African Malaria Network Trust Dar-es Salaam Tanzania Centre for Infectious Disease Research in Zambia (CIDRZ) Lusaka Zambia Makerere University College of Health Sciences Kampala Uganda

In this study, normal ranges for hematology and serum biochemistry in children aged 1 to 5 years inUgandawere determined. By a cross-sectional study, 1168 children from Iganga, a prospective site for clinical trials in Uganda, were screened. From 1168 households, 460 children were selected for enrollment, while 600 (58%) were excluded because of either a history of fever in the previous 24 hours, presence of asexual malaria parasites in the peripheral blood or presence of fever. Accordingly, 460 children (39.4%) of median age = 3 years were enrolled in the baseline study. While the lower limits of hemoglobin, hematocrit levels, mean corpuscular volume and platelet counts for the Ugandan children were found to be less than conventional reference values of Caucasisan children, the white blood cell count reference values were higher than the international intervals. On the other hand, the upper limits of the reference intervals for serum transaminases, bilirubin, creatinine, urea, total protein and albumin in sera of the Ugandan children were higher than the corresponding values for a Caucasian pediatric population. This study showed that, if hematology test results of the Ugandan children were assessed against “imported” international reference values, up to 44.6% of the study participants would have been excluded from clinical trials or would have been reported as adverse events in such trials. The present study was not only the first report of serum biochemistry reference ranges for children aged one to five years in Uganda but also one of very few such studies in Africa.

关键词： Normal Intervals Reference Uganda Children Hematology Serum Biochemistry Iganga

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Prevention of complications in endourological management of stones:What are the basic measures needed before,during,and after interventions?

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Asian Journal of Urology 2024年第2期11卷 180-190页

作者： Eric edison Giorgio Mazzon Vimoshan Arumuham Simon Choong Department of Urology University College Hospital LondonLondonUK Department of Urology San Bassiano HospitalVicenzaItaly

Objective:This narrative review aims to describe measures to minimise the risk of complications during percutaneous nephrolithotomy(PCNL),ureteroscopy,and retrograde intrarenal ***:A literature search was conducted from the PubMed/PMC database for papers published within the last 10 years(January 2012 to December 2022).Search terms included“ureteroscopy”,“retrograde intrarenal surgery”,“PCNL”,“percutaneous nephrolithotomy”,“complications”,“sepsis”,“infection”,“bleed”,“haemorrhage”,and“hemorrhage”.Key papers were identified and included meta-analyses,systematic reviews,guidelines,and primary *** references of these papers were searched to identify any further relevant papers not included ***:The evidence is assimilated with the opinions of the authors to provide *** practice pathways for patient care in the pre-operative,intra-operative,and post-operative periods are described,including the identification and management of residual *** complications(sepsis and stent issues)that are relevant for any endourological procedure are then be ***-specific considerations are then *** measures for PCNL include optimising access to minimise the chance of bleeding or visceral *** role of endoscopic combined intrarenal surgery in this regard is *** measures for ureteroscopy and retrograde intrarenal surgery include planning and technique to minimise the risk of ureteric *** role of anaesthetic assessment is *** importance of specific comorbidities on each step of the pathway is highlighted as ***:This review demonstrates that the principles of meticulous planning,interdisciplinary teamworking,and good operative technique can minimise the risk of complications in endourology.

关键词： Endourology Ureteroscopy Retrogradeintrarenal surgery Percutaneous nephrolithotomy Complications Sepsis Stent

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Structural regulation of coal-derived hard carbon anode for sodium-ion batteries via pre-oxidation

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Rare Metals 2024年第6期43卷 2585-2596页

作者： Meng-Yuan Su Kai-Yang Zhang edison Huixiang Ang Xue-Li Zhang Yan-Ning Liu Jia-Lin Yang Zhen-Yi Gu Faaz A.Butt Xing-Long Wu Faculty of Chemistry Northeast Normal UniversityChangchun 130024China MOE Key Laboratory for UV Light-Emiting Materials and Technology.Northeast Normal University.Ministry of Education Changchun 130024China Natural Sciences and Science Education National Institute of EducationNanyang Technological UniversitySingapore 637616Singapore Materials Engineering Department NED University of Engineering and TechnologyKarachi 75300Pakistan

Hard carbon(HC)is broadly recognized as an exceptionally prospective candidate for the anodes of sodium-ion batteries(SIBs),but their practical implementation faces substantial limitations linked to precursor factors,such as reduced carbon yield and increased ***,a cost-effective approach is proposed to prepare a coal-derived HC anode with simple pre-oxidation followed by a post-carbonization process which effectively expands the d_(002)layer spacing,generates closed pores and increases defect *** these modifications,the resulting HC anode attains a delicate equilibrium between plateau capacity and sloping capacity,showcasing a remarkable reversible capacity of 306.3 mAh·g^(-1)at 0.03 A·g^(-1).Furthermore,the produ ced HC exhibits fast reaction kinetics and exceptional rate performance,achieving a capacity of 289 mAh·g^(-1)at 0.1 A·g^(-1),equivalent to~94.5%of that at 0.03 A·g^(-1).When implemented in a full cell configuration,the impressive electrochemical performance is evident,with a notable energy density of 410.6 Wh·kg^(-1)(based on cathode mass).In short,we provide a straightforward yet efficient method for regulating coal-derived HC,which is crucial for the widespread use of SIBs anodes.

关键词： Sodium-ion batteries Hard carbon Anode Coal Pre-oxidation

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Mindfulness training in medical education as a means to improve resilience,empathy,and mental health in the medical profession

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World Journal of Psychiatry 2024年第4期14卷 489-493页

作者： edison Iglesias de Oliveira Vidal Luiz Fernando Alvarenga Ribeiro Marco Antonio de Carvalho-Filho Fernanda Bono Fukushima Internal Medicine Department Botucatu Medical SchoolSao Paulo State University(UNESP)Botucatu 18618-687SPBrazil Wenckebach Institute for Education and Training LEARN-Lifelong LearningEducation and Assessment Research NetworkUniversity Medical Center GroningenGroningen 9713AVGroningenNetherlands Assertiva Mindfulness Botucatu 18603-970SPBrazil Surgical Specialties and Anesthesiology Department Botucatu Medical SchoolSão Paulo State University(UNESP)Botucatu 18618-687SPBrazil

The high rates of depression,burnout,and increased risk of suicide among medical students,residents,and physicians in comparison with other careers signal a mental health crisis within our *** contend that this crisis coupled with the inadequate acquisition of interpersonal skills during medical education results from the interaction between a challenging environment and the mental capital of ***,we posit that mindfulness-based practices are instrumental for the development of major components of mental capital,such as resilience,flexibility of mind,and learning skills,while also serving as a pathway to enhance empathy,compassion,self-awareness,conflict resolution,and relational ***,the evidence base supporting the effectiveness of mindfulness-based interventions has been increasing over the years,and a growing number of medical schools have already integrated mindfulness into their *** we acknowledge that mindfulness is not a panacea for all educational and mental health problems in this field,we argue that there is currently an unprecedented opportunity to gather momentum,spread and study mindfulness-based programs in medical schools around the world as a way to address some longstanding shortcomings of the medical profession and the health and educational systems upon which it is rooted.

关键词： Mindfulness Medical education Mental capital Mental health Medical students Resilience

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Engineering hydrophobic protective layers on zinc anodes for enhanced performance in aqueous zinc-ion batteries

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Journal of Energy Chemistry 2024年第10期97卷 1-11页

作者： Taofeng Li Suxia Yan Hongyu Dong Yang Zheng Kun Ming Ying Chen Haitao Li Guochun Li Zhixia He Weimin Li Quan Wang Xiaohui Song Junfeng Liu edison Huixiang Ang Yong Wang Institute for Energy Research Jiangsu University School of Mechanical Engineering Jiangsu University Shenzhen College of Advanced Technology University of Chinese Academy of Sciences Shandong Zhongke Advanced Technology Co. Ltd School of Materials Science and Engineering Hefei University of Technology Natural Sciences and Science Education National Institute of Education Nanyang Technological University

Aqueous zinc-ion batteries possess substantial potential for energy storage applications;however,they are hampered by challenges such as dendrite formation and uncontrolled side reactions occurring at the zinc *** our investigation,we sought to mitigate these issues through the utilization of in situ zinc complex formation reactions to engineer hydrophobic protective layers on the zinc anode *** robust interfacial layers serve as effective barriers,isolating the zinc anode from the electrolyte and active water molecules and thereby preventing hydrogen evolution and the generation of undesirable ***,the presence of numerous zincophilic sites within these protective layers facilitates uniform zinc deposition while concurrently inhibiting dendrite *** comprehensive evaluation of functional anodes featuring diverse functional groups and alkyl chain lengths,we meticulously scrutinized the underlying mechanisms influencing performance *** analysis involved precise modulation of interfacial hydrophobicity,rapid Zn2+ion transport,and ordered deposition of Zn2+***,the optimized anode,fabricated with octadecylphosphate（OPA）,demonstrated exceptional performance *** Zn//Zn symmetric cell exhibited remarkable longevity,exceeding 4000 h under a current density of 2 mA cm-2and a capacity density of 2 mA h cm-2,Furthermore,when integrated with a VOH cathode,the complete cell exhibited superior capacity retention compared to anodes modified with alternative organic molecules.

关键词： Aqueous zinc-ion batteries Dendrite growth inhibition Energy storage Hydrophobic protective layers Zinc anode stability

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Anion-induced electrolyte chemistry enables high energy density primary battery for ultralow-temperature conditions

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Science China Chemistry 2024年

作者： Zi-Hang Xue Hao-Jie Liang Yong-Li Heng Jia-Lin Yang edison Huixiang Ang Hong-Yan Lü Hong Yu Dong-Mei Dai Dai-Huo Liu Chuan-Yu Zheng Wei Guo Xing-Long Wu Department of Chemistry Northeast Normal University MOE Key Laboratory for UV Light-Emitting Materials and Technology Northeast Normal University Natural Sciences and Science Education National Institute of Education Nanyang Technological University State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal Materials Northwestern Polytechnical University School of Chemistry and Chemical Engineering Henan Normal University Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province Gannan Normal University

Lithium/fluorinated-carbon（Li/CFx） primary batteries are widely used in defense and military fields due to their stable discharge plateau, low self-discharge rate, and adaptability across a wide temperature range. However, enhancing their overall energy density and discharge capacity at low temperatures remains a critical challenge. Herein, we report a strategically designed LiBF4-based sulfite/carboxylate electrolyte, where the anion-involved solvation structure significantly enhances electrochemical kinetics by reducing the desolvation barrier. Simultaneously, it introduces a radical reaction mechanism that contributes to additional capacity. As a result, the Li/CFxprimary batteries with this formulated electrolyte deliver a specific capacity of 2,257.15 mAh g-1at 25 °C. More importantly, when operating at -40 °C, the batteries exhibit an exceptionally high discharge capacity of 1,549.4 m Ah g-1and an energy density of 2,868.6 Wh kg-1. Even at -60 °C, the Li/CFxcells achieve a specific capacity of 444.3 mAh g-1and an energy density of 821.8 Wh kg-1at 0.1 C, significantly outperforming previously reported organic-based liquid electrolytes. This work offers a viable strategy for enhancing the specific capacity and energy density of primary batteries in extreme environments, providing valuable insights for future developments.

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Progresses in Sustainable Recycling Technology of Spent Lithium-Ion Batteries

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Energy & Environmental Materials 2022年第4期5卷 1012-1036页

作者： Kaidi Du edison Huixiang Ang Xinglong Wu Yichun Liu Faculty of Chemistry Northeast Normal UniversityChangchunJilin 130024China MOE Key Laboratory for UV Light-Emitting Materials and Technology Northeast Normal UniversityChangchunJilin 130024China Natural Sciences and Science Education National Institute of EducationNanyang Technological UniversitySingapore 637616Singapore

The number of lithium-ion batteries(LIBs)is steadily increasing in order to meet the ever-growing demand for sustainable energy and a high quality of life for *** the same time,the resulting large number of LIB waste certainly poses safety hazards if it is not properly disposed of and will seriously harm the environment due to its inherent toxicity due to the use of toxic ***,the consumption of many scarce precious metal resources is behind the mass production of *** the light of severe environmental,resources,safety and recycling problems,recycling spent LIBs have become an essential urgently needed action to achieve sustainable social *** review therefore critically analyses the value and the need for recycling of spent LIBs from a variety of resources and the environment.A range of existing technologies for recycling and reusing spent LIBs,such as pretreatment,pyrometallurgy,hydrometallurgy,and direct recycled methods,is subsequently summarized *** addition,the benefits and problems of the methods described above are analyzed in *** also introduces recycling progress of other LIB components,such as anodes,separators,and electrolytes,as well as the high-value ***,the prospects for recycling LIBs are addressed in four ways(government,users,battery manufacturers,and recyclers).This review should contribute to the development of the recycling of used LIBs,particularly in support of industrialization and recycling processes.

关键词： cathode materials pretreatment recycling spent lithium-ion batteries valuable metals

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Dynamic and ballistic impact behavior of biocomposite armors made of HDPE reinforced with chonta palm wood(Bactris gasipaes) microparticles

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Defence Technology（防务技术） 2018年第3期14卷 238-249页

作者： edison E.Haro Jerzy A.Szpunar Akindele G.Odeshi Department of Mechanical Engineering University of Saskatchewan

The mechanical behavior of chonta palm wood(Bactris gasipaes) microparticles reinforced high density polyethylene(HDPE) under high strain-rate compressive and ballistic impact loading were *** palm wood microparticles were introduced into the HDPE via an extrusion process using parallel twin screw extruder to produce biocomposite containing 10, 20, 25, and 30 wt % chonta wood microparticles. In addition to mechanical tests, fractographic analysis was done to understand the failure mechanism in the biocomposites under dynamic and ballistic impact loads. The results indicate that both quasi-static and dynamic mechanical properties of HDPE are enhanced by reinforcement with chonta palm wood particles. The biocomposites containing 25 wt % wood microparticles exhibited the highest strength, stiffness, ballistic impact resistance and impact energy absorption capability. Introduction of microparticles of chonta palm wood as reinforcement into a polymeric matrix such as HDPE is therefore a promising method to develop biocomposites with enhanced capacity to withstand dynamic impact loading and absorb impact energy.

关键词： HDPE 弹道行为盔甲机械测试吸收能力密度聚乙烯挤出过程

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Sol-Gel Coating with 3-Mercaptopropyltrimethoxysilane as Precursor for Corrosion Protection of Aluminium Metal

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Journal of Materials Science & Technology 2014年第8期30卷 814-820页

作者： Rajendran Babhu Vignesh Thomas Nesakumar Jebakumar Immanuel edison Mathur Gopalakrishnan Sethuraman Department of Chemistry Gandhigram Rural Institute-Deemed UniversityGandhigram 624 302Tamil NaduIndia

Sol—gel coatings offer a number of advantages over other methods of protection for metallic *** the present work,3-mercaptopropyltrimethoxysilane（MPTS） was used as the precursor for sol—gel coating on aluminium *** gelation of MPTS sol—gel was characterized by Fourier transform infrared spectroscopy（FT-IR） *** formed film was found to be stable up to 350 ℃ as evident from thermogravimetric analysis.X-ray diffraction study and scanning electron microscopy supported the formation of MPTS coating on aluminium surface while the characterization of the coating was done by FT-IR *** corrosion inhibition potential of the sol—gel coatings on metal in 3.5%（w/v） of NaCI solution was assessed as a function of different concentrations of MPTS using electrochemical polarization and impedance *** corrosion inhibition efficiency was found to increase with increasing MPTS *** results of the study unravel the use of MPTS as a precursor in the formation of sol—gel coating over aluminium surface so as to protect the metallic surface from corrosion in neutral environment.

关键词： 3-Mercaptopropyltrimethoxysilane(MPTS) Sol-gel coating Surface protection Electrochemical studies FT-IR

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Accelerated Gradient Descent Methods for the Uniaxially Constrained Landau-de Gennes Model

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Advances in Applied Mathematics and Mechanics 2022年第1期14卷 1-32页

作者： edison E.Chukwuemeka Shawn W.Walker Department of Mechanical Engineering Louisiana State UniversityBaton RougeLA 70803USA Department of Mathematics and Center for Computation and Technology(CCT) Louisiana State UniversityBaton RougeLA 70803USA

This paper illustrates the efficacy of using accelerated gradient descent schemes for minimizing a uniaxially constrained Landau-de Gennes model for nematic liquid ***(alternating direction)minimization schemes are applied to a structure preserving finite element discretization of the uniaxial model:a standard gradient descent method,the“heavy-ball”method,and Nesterov’s *** performance of the schemes is measured in terms of the number of iterations required to obtain the equilibrium state,as well as the total computational time(wall time).The numerical experiments clearly show that the accelerated gradient descent schemes reduce the number of iterations and computational time significantly,despite the hard uniaxial constraint that is not“smooth”when defects are ***,our results show that accelerated schemes are not hindered when combined with an alternating direction minimization algorithm and are easy to implement.

关键词： Liquid crystals Landau-de Gennes uniaxial heavy-ball method Nesterov’s method

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