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Carbon coating of air-sensitive insulating transition metal fluorides:An example study on α-Li3FeF6 high-performance cathode for lithium ion batteries

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Journal of Materials science & Technology 2020年第20期52卷 107-115页

作者： Anna Basa sławomir wojtulewski Beata Kalska-szostko Maciej Perkowski Elena Gonzalo Olga Chernyayeva Alois Kuhn Flaviano García-Alvarado Institute of Chemistry University of Bialystokul.K.Ciolkowskiego 1K15-245 BialystokPoland Departamento de Química y Bioquímica Facultad de FarmaciaUniversidad CEU San Pablo28668 Boadilla del MonteMadridSpain Polish Institute of Physical Chemistry Kasprzaka St.44/5201-224 WarsawPoland CIC Energigune Parque Tecnologico de Alava01510 MinanoAlavaSpain

Li_(3)FeF_(6)has been the focus of research of fluorine-based cathode materials for lithium-ion *** of the low electronic conductivity of Li3 FeF6,the decrease of particle size,by an energyconsuming long-time ball milling process with carbon,is necessary to achieve a high electrochemical *** most successful method to enhance electrochemical activity,carbon coating,seemed to be impracticable,so far,for sensitive fluorides like Li3 *** this work,carbon coating on Li3 FeF6 particles has been successfully achieved for the first time,while avoiding both extended hydrolysis and Fe(Ⅲ)-Fe(Ⅱ)*** heat treatment and atmosphere,yielding the maximal transformation of organic carbon to both graphitised and disordered carbon,has been *** coating,with a thickness of approximately 2.5 nm,has been achieved by controlled thermal decomposition of glucose,under air,at 300℃.Raman and X-ray photoelectron spectroscopy(XPs)experiments have proved the existence of carbon and Fe2O3 on the surface of Li3FeF6 *** spectroscopy indicates the presence of organic residues from glucose *** to further reduce the orga nic carbon content results in a decrease of the amorphous carbon coating *** carbon-coated Li3 FeF6 nanoparticles deliver 122 mA h g^(-1)(85%of theoretical capacity)significantly higher than that of a noncoated sample(58 mA h g^(-1)).Even more,a significant beneficial effect of carbon coating on both capacity retention and coulombic efficiency is observed.

关键词： Lithium iron fluoride Hydrolysable fluoride Lithium battery Cathode Carbon coating

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Gut microbiota neurotransmitters:influence on risk and outcome of ischemic stroke

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Neural Regeneration Research 2023年第8期18卷 1707-1708页

作者： Ryszard Pluta sławomir Januszewski Laboratory of Ischemic and Neurodegenerative Brain Research Mossakowski Medical Research InstitutePolish Academy of SciencesWarsawPoland

Ischemic stroke:stroke is the second and third cause of death and disability,respectively,with an annual rate of 24.9 million cases worldwide(Chidambaram et al.,2022).stroke is defined as the lack of blood supply to a... 详细信息

关键词： Chi cases

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Losses Estimation in Transonic Wet steam Flow through Linear Blade Cascade

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Journal of Thermal science 2015年第2期24卷 109-116页

作者： sawomir Dykas Mirosaw Majkut Micha strozik Krystian smoka Institute of Power Engineering and Turbomachinery Silesian University of Technology

Experimental investigations of non-equilibrium spontaneous condensation in transonic steam flow were carded out in linear blade cascade. The linear cascade consists of the stator blades of the last stage of low pressure steam turbine. The applied experimental test section is a part of a small scale steam power plant located at silesian Uni- versity of Technology in Gliwice. The steam parameters at the test section inlet correspond to the real conditions in low pressure part of 200MWe steam turbine. The losses in the cascade were estimated using measured static pressure and temperature behind the cascade and the total parameters at inlet. The static pressure measurements on the blade surface as well as the schlieren pictures were used to assess the flow field in linear cascade of steam turbine stator blades.

关键词： wet steam condensation transonic flow losses

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Pancreatic intraductal papillary mucinous neoplasms:Current diagnosis and management

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World Journal of Gastrointestinal Oncology 2021年第12期13卷 1880-1895页

作者： Beata Jabłońska Pawełszmigiel sławomir Mrowiec Department of Digestive Tract surgery Medical University of SilesiaKatowice 40-752Poland

Intraductal papillary mucinous neoplasms(IPMNs)represent approximately 1%of all pancreatic neoplasms and 25%of cystic *** are divided into three types:main duct-IPMN(MD-IPPMN),branch duct-IPMN(BD-IPMN),and mixed *** this review,diagnostics,including clinical presentation and radiological investigations,were *** resonance imaging is the most useful for most *** depends on the type and radiological features of *** is recommended for *** BD-IPMN,management involves surgery or surveillance depending on the tumor size,cyst growth rate,solid components,main duct dilatation,high-grade dysplasia in cytology,the presence of symptoms(jaundice,new-onset diabetes,pancreatitis),and CA 19.9 serum *** patient’s age and comorbidities should also be taken into ***,there are different guidelines regarding the diagnosis and management of *** this review,the following guidelines were presented:sendai International Association of Pancreatology guidelines(2006),American Gastroenterological Association guidelines,revised international consensus Fukuoka guidelines(2012),revised international consensus Fukuoka guidelines(2017),and European evidence-based guidelines according to the European study Group on Cystic Tumours of the Pancreas(2018).The Verona Evidence-Based Meeting 2020 was also presented and discussed.

关键词： Pancreatic cyst Pancreatic cystic neoplasm Intraductal papillary mucinous neoplasm Pancreatic cancer Pancreatectomy Guidelines

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CMTJ:simulation package for analysis of multilayer spintronic devices

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npj Computational Materials 2023年第1期9卷 1804-1813页

作者： Jakub Mojsiejuk sławomir Ziętek Krzysztof Grochot Witold skowroński Tomasz stobiecki Institute of Electronics AGH University of Science and TechnologyAl.Mickiewicza 30Kraków 30-059Poland Faculty of Physics and Applied Computer science AGH University of Science and TechnologyAl.Mickiewicza 30Kraków 30-059Poland

We present CMTJ—a simulation package for large-scale macrospin analysis of multilayer spintronics *** from conventional simulations,such as magnetoresistance and magnetisation hysteresis loops,CMTJ implements a mathematical model of dynamic experimental techniques commonly used for spintronics devices characterisation,for instance:spin diode ferromagnetic resonance,pulse-induced microwave magnetometry,or harmonic Hall voltage *** find that macrospin simulations offer a satisfactory level of agreement,demonstrated by a variety of *** a unified simulation package,CMTJ aims to accelerate wide-range parameter search in the process of optimising spintronics devices.

关键词： multilayer analysis hysteresis

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Autumn migration of Ospreys from two distinct populations in Poland reveals partial migratory divide

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Avian Research 2021年第4期12卷 442-451页

作者： Dariusz Anderwald Łukasz Czajka sławomir Rubacha Michal Zygmunt Pawel Mirski Forest Experimental station in Rogów Akademicka 2095-063 RogówPoland Eagle Conservation Committee Niepodległości 53/5510-044 OlsztynPoland Faculty of Biology University of BiałystokCiołkowskiego 1J15-245 BiałystokPoland.

Background:Long-term ringing and telemetry studies show that the Osprey(Pandion haliaetus)is a broad-front migrant following different migratory flyways,depending on the geographical location of their breeding *** have investigated two distinct and declining populations of Osprey in Poland,separated by only a few hundred kilometres,and hypothesised they may exhibit two different migration *** followed mortality causes,comparing them between migration and stationary phases of annual cycle,as well as between two distinct ***:Nineteen Ospreys,both juveniles and adults,were equipped with GPs loggers in 2017-2020 in two populations in western and eastern Poland and followed on their autumn *** calculated the distance they covered on the migration,number of stopover days,migration duration,daily distances covered and departure dates to compare them between age and sex classes and between the eastern and western ***:Ospreys from the western and eastern populations showed a partial migratory *** the first migrated through a western flyway,the second followed a central flyway,resulting in crossing the Mediterranean sea in distant passes that affected the distance *** mortality reached at least 67%in juveniles and at least 57%in ***:We showed that two distinct Osprey populations in Poland revealed a partial migratory divide,with one covering greater distances over sea and deserts over the central *** might affect individual survival rates and contribute to a steeper decline in one of the *** order for this to be confirmed,more individuals still have to be followed.

关键词： GPs telemetry Mortality Pandion haliaetus stopover

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Association between acute pancreatitis and COVID-19 infection:What do we know?

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World Journal of Gastrointestinal surgery 2021年第6期13卷 548-562页

作者： Beata Jabłońska Marek Olakowski sławomir Mrowiec Department of Digestive Tract surgery Medical University of SilesiaKatowice 40-752Poland

The disease caused by severe acute respiratory syndrome coronavirus 2(sARsCoV-2),also called coronavirus disease 2019(COVID-19),first originated in Wuhan,China,displaying atypical pneumonia-like respiratory symptoms in affected ***-CoV-2 primarily attacks the respiratory system,and the most common symptoms include cough,shortness of breath,and ***,its impact on the digestive system has been shown,and various clinical gastrointestinal manifestations of this disease have been *** reports have shown acute pancreatitis(AP)as the initial symptom in patients with *** may be a consequence of direct pancreatic damage by the virus because pancreatic acinar cells contain angiotensin-converting enzyme 2 receptor proteins,and sARs-CoV-2 can bind to these receptors,causing pancreatic ***,AP may be a secondary indicator of cytokine storms and altered inflammatory *** review of the literature shows that sARs-CoV-2 appears to be a new etiological infectious factor related to *** this manuscript,a comprehensive review of case reports and case series of patients with AP and COVID-19 is *** reports on COVID-19-associated AP are *** cases are thoroughly analyzed and discussed in-depth.

关键词： sARs-CoV-2 COVID-19 Acute pancreatitis Angiotensin-converting enzyme 2

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Revisiting cerebral endothelial cells in Alzheimer’s disease

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Neural Regeneration Research 2025年第10期20卷 2911-2912页

作者： Amira s.Hanafy Department of Neurosurgery University Hospital BonnBonnGermany

Alzheimer’s disease(AD)is the most common neurodegenerative disorder characterized by slow and progressive decline of cognitive and memory *** only approximately 5%of the cases,AD is familial,as often predisposed by genetic mutations(Hoogmartens et al.,2021),while sporadic AD accounts for approximately 95%of the *** amyloid cascade hypothesis is one of the fundamental hypotheses put out to explain AD pathogenesis as dysregulated homeostasis of amyloid-β(Aβ)peptides that leads to the accumulation of Aβplaques in the parenchyma,an anatomical hallmark of AD.

关键词： Alzheimer Aβ cerebral

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A systematic review of progenitor survival and maturation in Parkinsonian models

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Neural Regeneration Research 2025年第11期20卷 3172-3178页

作者： Giulia Comini Eilís Dowd Pharmacology&Therapeutics and Galway Neuroscience Center University of GalwayGalwayIreland

stem cell-based brain repair is a promising emergent therapy for Parkinson's disease based on years of foundational research using human fetal donors as a cell *** current therapeutic options for patients,this approach has the potential to provide longterm stem cell–derived reconstruction and restoration of the dopaminergic input to denervated regions of the brain allowing for restoration of certain functions to *** ultimate clinical success of stem cell–derived brain repair will depend on both the safety and efficacy of the approach and the latter is dependent on the ability of the transplanted cells to survive and differentiate into functional dopaminergic neurons in the Parkinsonian *** the pre-clinical literature suggests that there is considerable variability in survival and differentiation between studies,the aim of this systematic review was to assess these parameters in human stem cell-derived dopaminergic progenitor transplant studies in animal models of Parkinson's disease.A defined systematic search of the PubMed database was completed to identify relevant studies published up to March *** screening,76 articles were included in the analysis from which 178 separate transplant studies were *** these,graft survival could be assessed in 52 studies and differentiation in 129 ***,we found that graft survival ranged froms transplanted,with a median of 51%of transplanted cells surviving in the brain;while dopaminergic differentiation of the cells ranged from 0% to 46% of cells transplanted with a median of 3%.This systematic review suggests that there is considerable scope for improvement in the differentiation of stem cell-derived dopaminergic progenitors to maximize the therapeutic potential of this approach for patients.

关键词： cell replacement therapy differentiation embryonic stem cells graft induced pluripotent stem cells Parkinson's disease survival transplant

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Use of focus stacking and sfM techniques in the process of registration of a small object hologram

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Chinese Optics Letters 2020年第6期18卷 19-23页

作者： sławomir Pasko Marek sutkowski Ramunas Bakanas Institute of Micromechanics and Photonics Warsaw University of Technology02-525 WarsawPoland 2Institute of Microelectronics and OptoelectronicsWarsaw University of Technology00-665 WarsawPoland 3Geola Digital uab.Vilnius 03227Lietuva

In this Letter,a method for shape visualization of small objects(microscopic)in the form of a hologram is *** consists of a standard optical set-up for small object registration(i.e.,stereoscopic or biological microscope).The focus stacking technique is used to obtain a series of images with increased depth of field and on them a shape reconstruction procedure(structure from motion,sfM)is *** use of a dense cloud of points,a sequence of parallax-related images suitable for Geola’s digital holographic printing is *** holographic printer produces single-parallax holographic(full three-dimensional)images of real or virtual objects.

关键词： digital holography three-dimensional image acquisition photography

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