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Magnetic glass-ceramics

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Journal of Advanced Ceramics 2012年第2期1卷 138-143页

作者： Viorel SANDU Mirela Sidonia NICOLESCU Victor KUNCSER Raluca damian Elena SANDU National Institute of Materials Physics Magurele 077125Romania “Horia Hulubei”National Institute of Nuclear Physics and Engineering Magurele 077125Romania

We present the magnetic properties of magnetic glass ceramics obtained by crystallization of Fe containing borosilicate *** types of nucleators have been used:Cr2O3 and *** role of the nucleators proved to be crucial in the size and morphology of the crystallites developed within glassy matrix as well in the magnetic *** former stimulates the growth of regular single crystals uniformly dispersed within the matrix whereas the latter leads to the formation of grains made of tiny(30 nm),*** magnetic response depends on the amount of Fe ions left dispersed within glassy matrix as paramagnetic *** P2O5 leads to the best structural magnetite,almost 42%of Fe ions are left dispersed in the matrix without magnetic *** the case of Cr2O3,the paramagnetic Fe is decreased to 12%but structural deficiency in the occupancy of the Fe sites of magnetite is revealed by Mössbauer spectroscopy.

关键词： glass ceramics Fe3O4 Mössbauer spectroscopy grain growth

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World Journal of Gastroenterology 2017年第22期23卷 4132-4134页

作者： Lucia Ameghino Malco damian Rossi Daniel Cerquetti Marcelo Merello Movement Disorders Section Neuroscience Department Raul Carrea Institute for Neurological Research

Neurological features in celiac disease(CD) are not rare(5%-36%), but tremor is scarcely described. Subjects with CD and healthy controls completed an online survey using WHIGET tremor rating scale. One thousand five hundred and twelve subjects completed the survey, finally 674 CD patients and 290 healthy subjects were included. A higher prevalence of tremor in CD patients was observed in comparison to controls(28% vs 14%, P < 0.001). Frequency of family history of tremor in CD patients with and without tremor was 25% and 20%(P = 0.2), while in the control group it was 41% and 10%(P < 0.001). Controls with tremor showed a higher frequency of family history of tremor when compared to CD patients with tremor(41.5% vs 24.6%, P = 0.03). The results suggested that tremor in CD might be more frequent and possibly related to the disease itself and not due to associated essential tremor.

关键词： Tremor Celiac disease Gluten Gluten-free diet Movement disorders

Morphological changes of the lateral abdominal muscles in adolescent soccer players with low back pain: A prospective cohort study

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Journal of Sport and Health Science 2020年第6期9卷 614-619页

作者： Pawel Linek Pardis Noormohammadpour Mohammad Ali Mansournia Tomasz Wolny damian Sikora Department of Kinesitherapy and Special Methods in Physiotherapy The Jerzy Kukuczka Academy of Physical EducationKatowice40-065Poland Sports Medicine Research Center Neuroscience InstituteTehran University of Medical SciencesTehran14395-578Iran Department of Epidemiology and Biostatistics School of Public HealthTehran University of Medical SciencesTehran14155-6446Iran Kinesis Research Team Department of Kinesitherapy and Special Methods in PhysiotherapyThe Jerzy Kukuczka Academy of Physical EducationKatowice40-065Poland

Background:Most papers examining the lateral abdominal muscles(LAMs)and low back pain(LBP)are cross-sectional,with groups of participants being divided into a control and an LBP *** hypothesized that morphological measurements of the LAMs in adolescent soccer players may predict future LBP *** aim of this study was to examine the associations between the morphology of LAMs and LBP incidence rate among adolescent soccer ***:Ninety-seven adolescent male soccer players with no LBP at baseline were recruited into the prospective cohort *** thickness of the LAMs was measured at baseline by ultrasound imaging in a supine rest *** cases of LBP occurred during the follow-up 6-month ***:An obliquus internus(OI)asymmetry was related to increasing LBP risk(odds ratio=19.99;95%CI:2.4-167.9).Spearman correlation also showed a linear relationship between OI asymmetry value and duration of LBP(R=0.75,p=0.02).An OI side-to-side difference greater than 1.25 mm suggests possible LBP incidence in the 6-month observation among adolescent soccer ***:The morphological changes of the OI may be related to LBP’s incidence in adolescent soccer *** presence of OI asymmetry increases the odds of LBP by at least 2.4 *** of the OI on one side of the body may contribute to trunk muscle imbalance.

关键词： Abdominal wall External oblique Internal oblique Low back pain Ultrasound Transversus abdominis

Can active late-type stars contribute to the Galactic lithium abundance?

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Research in Astronomy and Astrophysics 2020年第7期20卷 127-133页

作者： Darnell E.Kelly damian J.Christian Mihalis Mathioudakis Darko Jevremovi′c Department of Physics and Astronomy California State UniversityNorthridgeCA 91330-8268USA Astrophysics Research Centre School of Mathematics and PhysicsQueen’s University BelfastBelfast BT71NNUK Astronomical Observatory Volgina 711060 BelgradeSerbia

Lithium abundances in our Galaxy and especially 6 Li abundances provide important constraints on our understanding of Big Bang Nucleosynthesis(BBNS),stellar evolution and the creation of light elements by cosmic rays in the ISM.~6 Li has been detected in energetic solar events,one chromospherically active binary and several dwarf halo *** our work on active late-type stars with high lithium abundances,we expand our study to consider if the flare origin of lithium created by spallation can contribute significantly to the Galactic abundance of *** previously derived ~6 Li/~7 Li=0.030 ± 0.010 for active K dwarf GJ 117 using VLT UVES *** find^6 Li/~7 Li ratios of 0.02 and 0.10 for two other stars in our sample,GJ 182 and EUVE J1145-55.3 A,*** that these later type,active stars have significant flare rates and stellar winds,we have estimated the contribution of these stars to the Galactic lithium *** that K and M stars comprise over 84% of our Galaxy and that many of these can have significant stellar winds,we conclude that spallation in stellar flares can contribute 1% and up to 5% of the Galactic lithium abundance.

关键词： stars:abundances stars:activity Galaxy:abundances

Modifying the progression of Parkinson's disease through movement interventions:multimodal quantification of underlying mechanisms

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Neural Regeneration Research 2024年第8期19卷 1651-1652页

作者： Manuel Bange damian Marc Herz Dumitru Ciolac Gabriel Gonzalez-Escamilla Sergiu Groppa Section of Movement Disorders and Neurostimulation Department of NeurologyFocus Program Translational Neuroscience(FTN)University Medical Center of the Johannes Gutenberg-University MainzMainzGermany

Introduction:Parkinson’s disease(PD)is the most common neurodegenerative movement *** pathological hallmark is the progressive loss of dopaminergic neurons of the substantia nigra pars compacta,which is accompanied by widespread alterations in the structu re and function of distributed brain *** r,these processes cause a variety of motor symptoms such as bradykinesia,rigidity,tremor,gait disorders,or difficulties in fine motor control(Bange et al.,2022).

关键词： alterations movement

Surgical resection of rectal adenoma:A rapid review

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World Journal of Gastroenterology 2009年第31期15卷 3851-3854页

作者： damian Casadesus Calixto Garcia Hospital J and University

Transanal excision （TE）, endoscopic transanal resection （ETAR） and transanal endoscopic microsurgery （TEN） can be used to remove adenomatous polyps. However, their use is limited by the size or location of the tumor. TE is limited to the lower rectum, TEN offers better access to lesions in the middle and upper rectum, and ETAR is used less frequently than it deserves for resection of rectal lesions.

关键词： Adenoma Colorectal surgery Endoscopy Gastrointestinal Microsurgery Rectal neoplasms

Stevens-Johnson Syndrome complicated by obstructive uropathy,pneumothorax,and pneumomediastinum:a case report and literature review

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Burns & Trauma 2019年第1期7卷 125-131页

作者： damian Bruce-Hickman Xiao Jiang Joshua Jin-Ping Thia Amit Kansal Department of Intensive Care Medicine Ng Teng Fong HospitalSingaporeSingap

Background:Stevens-Johnson Syndrome(SJS)is an acute mucocutaneous eruption with blisters of the skin and haemorrhagic erosions of mucous *** report describes air-leak syndrome and obstructive uropathy occurring simultaneously in a teenage patient affected by *** presentation:A 17-year-old Malay female with SJS suffered from bilateral pneumothoraces,pneumomediastinum,and obstructive uropathy as early complications of her *** required intubation,chest tube insertion,and bilateral ureteric stenting as part of her intensive care *** extracutaneous complications of renal and pulmonary systems were likely secondary to widespread epithelial ***:Despite paucity of cases in adult literature,post-renal causes for acute kidney injury must be considered in SJS,especially in the setting of gross *** point-of-care ultrasonography may be a useful tool for excluding obstructive *** is a rare but documented complication of SJS in paediatric cases and,to a lesser extent,adult *** care should be exercised when caring for mechanically ventilated patients suffering from SJS.

关键词： Stevens-Johnson Syndrome Obstructive uropathy Ureteric stenting Pneumothorax Pneumomediastinum

G protein-coupled estrogen receptor in colon function, immune regulation and carcinogenesis

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World Journal of Gastroenterology 2019年第30期25卷 4092-4104页

作者： damian Jacenik Ellen J Beswick Wanda M Krajewska Eric R Prossnitz Department of Cytobiochemistry Faculty of Biology and Environmental ProtectionUniversity of LodzLodz 90-236Poland Department of Internal Medicine School of Medicineand UNM Comprehensive Cancer CenterUniversity of New MexicoAlbuquerqueNM 87131United States Division of Gastroenterology Hepatology and NutritionDepartment of Internal MedicineSchool of MedicineUniversity of UtahSalt Lake CityUT 84132United States

Estrogens play important roles in the development and progression of multiple tumor *** evidence points to the significance of estrogen action not only in tumors of hormonally regulated tissues such as the breast,endometrium and ovary,but also in the development of colorectal cancer(CRC).The effects of estrogens in physiological and pathophysiological conditions are mediated by the nuclear estrogen receptorsαandβ,as well as the membranebound G protein-coupled estrogen receptor(GPER).The roles of GPER in CRC development and progression,however,remain poorly *** on the functions of GPER in the colon have shown that this estrogen receptor regulates colonic motility as well as immune responses in CRC-associated diseases,such as Crohn’s disease and ulcerative *** is also involved in cell cycle regulation,endoplasmic reticulum stress,proliferation,apoptosis,vascularization,cell migration,and the regulation of fatty acid and estrogen metabolism in CRC ***,multiple lines of evidence suggest that GPER may play an important role in colorectal *** this review,we present the current state of knowledge regarding the contribution of GPER to colon function and CRC.

关键词： G protein-coupled estrogen receptor Colorectal cancer Proliferation Migration Colonic motility Inflammatory bowel disease

A dual-beam piezo-magneto-elastic wake-induced vibration energy harvesting system for high-performance wind energy harvesting

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Science China(Technological Sciences) 2024年第1期67卷 221-239页

作者： MA XiaoQing ZHANG Hang MARGIELEWICZ Jerzy GĄSKA damian WOLSZCZAK Piotr LITAK Grzegorz ZHOU ShengXi School of Aeronautics Northwestern Polytechnical UniversityXi’an 710072China Research&Development Institute in Shenzhen Northwestern Polytechnical UniversityShenzhen 518057China Faculty of Transport and Aviation Engineering Silesian University of TechnologyKrasińskiego 8Katowice 40-019Poland Department of Automation Lublin University of TechnologyNadbystrzycka 36Lublin 20-618Poland

Wind-induced vibration energy harvesting has a great potential for utilizing wind energy to supply power for low-powered *** improve the working performance of energy harvesters effectively,a suitable structural design is *** paper proposes a dual-beam piezo-magneto-elastic wake-induced vibration energy harvesting system to enhance the functional performance of aeroelastic energy harvesters in environments with variable wind *** system contains two piezoelectric beams coupled by magnets(forming upstream and downstream energy harvesters),and each beam is attached with a foam cylinder.A corresponding dynamic model is provided,and output characteristics are obtained at different wind *** and experimental verification indicate that both upstream and downstream energy harvesters can realize efficient energy *** the wind speed exceeds a certain critical value,the amplitudes of the system’s displacement and voltage are *** wind speed threshold value is approximately 1.25 m/*** the wind speed and magnet spacing are 10.2 m/s and 20 mm,respectively,the output power of the system reaches 4.9×10^(−4)***,the wind speed threshold value of the proposed system can be adjusted by an equivalent nonlinear restoring force.

关键词： dual-beam structure piezoelectric energy harvester theoretical model nonlinear dynamics

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