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Solution combustion synthesis and electrochemical properties of yttrium-doped LiMnPO4/C cathode materials for lithium ion batteries

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Journal of Rare Earths 2020年第9期38卷 976-982,I0003页

作者： Redouan El Khalfaouy Servet Turan Miguel A.Rodriguez kamil burak dermenci Umut Savaci Abdellah Addaou Ali Laajeb Ahmed Lahsini Sciences and Technologies of Process Engineering Laboratory Sidi Mohamed Ben Abdellah University30000FezMorocco Department of Material Science&Engineering Eskisehir Technical University2 Eylül Campus26555 TepebaşıEskişehirTurkey Instituto de Cerámica y Vidrio CSICC/Kelsen528049MadridSpain

Phospho-olivine pristine LiMnPO4/C and yttrium-substituted LiMn1-xYxPO4/C(x=0,0.01,0.03,0.05)were synthesized by a solution combustion *** effects of Y-doped on structure,morphology and electrochemical performances were *** powder X-ray diffraction pattern,all substituted materials adopt an identical structure to that of the LiMnPO4 olivine structure,suggesting that the yttrium ion was well inco rporated into the crystal lattice,without any changes in the host crystal *** electrochemical impedance spectroscopy provides clearly that yttrium-substituting reduces the charge transfer impedance and improves the lithium ion diffusion through the *** x=0.01,the material shows an excellent capacity and stability during charge/discharge *** initial specific discharge capacity can reach up to 156.84 mAh/g at C/20,with a coulombic efficiency of about 96.11%,which is 14%higher than that of the pristine *** results confirm that the cyclic stability and the electrochemical performances of LiMnPO4/C are highly improved by Y-doping.

关键词： LiMnPO4 cathode Olivine material Yttrium substitution Combustion Glycine Lithium-ion battery

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Mutational screening of BASP1 and transcribed processed pseudogene TPΨg-BASP1 in patients with Mbius syndrome

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Journal of Genetics and Genomics 2009年第4期36卷 251-256页

作者： Abdullah Uzumcu Sukru Candan Guven Toksoy Z.Oya Uyguner Birsen Karaman Hacer Eris burak Tatli Hulya Kayserili Adnan Yuksel Bilge Geckinli Memnune Yuksel-Apak Seher Basaran Department of Medical Genetics Istanbul Medical Faculty Istanbul UniversityIstanbul 34390 Turkey Department of Genetics Zeynep Kamil Gynecologic and Pediatric Training and Research HospitalIstanbul 34668 Turkey Division of Neurology Department of Pediatrics Istanbul Medical Faculty Istanbul UniversityIstanbul 34390 Turkey Department of Medical Genetics Cerrahpasa Medical Faculty Istanbul UniversityIstanbul 34098 Turkey

Moebius syndrome is a rare disorder primarily characterized by congenital facial palsy, frequently accompanied by ocular abduction anomalies and occasionally associated with orofacial, limb and musculoskeletal malformations. Abnormal development of cranial nerves Ⅴ through Ⅻ underlines the disease pathogenesis. Although a genetic etiology for Moebius syndrome was proposed, molecular genetic studies to identify the causative gene（s） are scarce. In this study, we selected two candidate genes. One is BASP1 residing in a human chromosome 5p15.1-p15.2, syntenic to mouse chromosome 15qA2-qB2, to which a mouse model with facial nerve anomalies was mapped. The other is transcribed processed pseudogene TPψg-BASP1, which is located on chromosome 13q flanking the putative locus for Moebius syndrome and might be involved in the regulation of the transcripts encoded by BASP1. Mutation analyses in nineteen patients excluded these genes as being candidates for Moebius syndrome.

关键词： MObius syndrome Iacial palsy candidate gene BASP1 transcribed processed pseudogene non-coding RNA mutation screening

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