LIVIVO - Search results -

Search results

Result 1 - 10 of total 419982

Search options

Article ; Online: Effects of Te- and Fe-doping on the superconducting properties in Fe y Se1− x Te x thin films

Yalin Zhang / Tong Wang / Zhihe Wang / Zhongwen Xing

Scientific Reports, Vol 12, Iss 1, Pp 1-

2022 Volume 11

Abstract: Abstract High quality Fe y Se1−x Te x epitaxial thin films have been fabricated on TiO2-buffered ... vacancies are beneficial for the Fe y Se1−x Te x films to exhibit the higher T c . A 3D phase diagram is ... given that the optimize range is x = 0.13–0.15 and y = 0.73–0.78 for Fe y Se1−x Te x films. The anisotropic, effective ...

Abstract	Abstract High quality Fe y Se1−x Te x epitaxial thin films have been fabricated on TiO2-buffered SrTiO3 substrates by pulsed laser deposition technology. There is a significant composition deviation between the nominal target and the thin film. Te doping can affect the Se/Te ratio and Fe content in chemical composition. The superconducting transition temperature T c is closely related to the chemical composition. Fe vacancies are beneficial for the Fe y Se1−x Te x films to exhibit the higher T c . A 3D phase diagram is given that the optimize range is x = 0.13–0.15 and y = 0.73–0.78 for Fe y Se1−x Te x films. The anisotropic, effective pining energy, and critical current density for the Fe0.72Se0.94Te0.06, Fe0.76Se0.87Te0.13 and Fe0.91Se0.77Te0.23 films were studied in detail. The scanning transmission electron microscopy images display a regular atomic arrangement at the interfacial structure.
Keywords	Medicine ; R ; Science ; Q
Subject code	620
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	Nature Portfolio
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article: 45, X/ 46, X, psu idic (Y) (q11.2) Mosaicism in a Primary Amenorrhea Girl with Swyer Syndrome.

Han, Yu / Wu, Jiebin / Tan, Fangfang / Sha, Jing / Zhang, Bei / Zhai, Jingfang / Wang, Xuezhen

Case reports in genetics

2023 Volume 2023, Page(s) 9127512

Abstract: ... chromosome, while the latter results from 45, X/46, XY mosaicism. Both of them are sex chromosome disorders ... of the embryonic gonads into testes. In this report, we described a young female with mos 45, X [2]/46, X, psu idic ... Y) (q11.2) [48] by karyotyping. Further copy number variation sequencing (CNV-seq) and fluorescent ...

Abstract	The female characters with a 46, XY karyotype, historically termed Swyer syndrome, are commonly divided into complete and partial gonadal dysgenesis. The former is completely made up of the 46, XY chromosome, while the latter results from 45, X/46, XY mosaicism. Both of them are sex chromosome disorders and are typically characterized by delayed puberty and primary amenorrhea due to disruption of the embryonic gonads into testes. In this report, we described a young female with mos 45, X [2]/46, X, psu idic (Y) (q11.2) [48] by karyotyping. Further copy number variation sequencing (CNV-seq) and fluorescent in situ hybridization (FISH) verified her chromosome alteration. The following gonadectomy and hormone replacement therapy were carried out, and the menstrual cycle recovered along with the development of bilateral breasts and uteruses. Herein, we aim to provide clinical management strategies for the patient with Swyer syndrome in clinical practice.
Language	English
Publishing date	2023-03-09
Publishing country	United States
Document type	Case Reports
ZDB-ID	2664417-4
ISSN	2090-6552 ; 2090-6544
ISSN (online)	2090-6552
ISSN	2090-6544
DOI	10.1155/2023/9127512
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

Article: Comprehensive analysis of three female patients with different types of X/Y translocations and literature review.

Liu, Shanquan / Zheng, Jiemei / Liu, Xijing / Lai, Yi / Zhang, Xuan / He, Tiantian / Yang, Yan / Wang, He / Zhang, Xuemei

Molecular cytogenetics

2023 Volume 16, Issue 1, Page(s) 7

Abstract: Background: X/Y translocations are highly heterogeneity in terms of clinical genetic effects, and ... This study comprehensively analyzed the clinical and genetic characteristics of three new patients with X/Y ... translocations. Furthermore, cases with X/Y translocations reported in the literature and studies exploring ...

Abstract	Background: X/Y translocations are highly heterogeneity in terms of clinical genetic effects, and most patients lack complete pedigree analysis for clinical and genetic characterization. Results: This study comprehensively analyzed the clinical and genetic characteristics of three new patients with X/Y translocations. Furthermore, cases with X/Y translocations reported in the literature and studies exploring the clinical genetic effects in patients with X/Y translocations were reviewed. All three female patients were carriers of X/Y translocations with different phenotypes. The karyotype for patient 1 was 46,X,der(X)t(X;Y)(p22.33;q12)mat, patient 2 was 46,X,der(X)t(X;Y)(q21.2;q11.2)dn, and patient 3 was 46,X,der(X)t(X;Y)(q28;q11.223)t(Y;Y)(q12;q11.223)mat. C-banding analysis of all three patients revealed a large heterochromatin region in the terminal region of the X chromosome. All patients underwent chromosomal microarray analysis, which revealed the precise copy number loss or gain. Data on 128 patients with X/Y translocations were retrieved from 81 studies; the phenotype of these patients was related to the breakpoint of the chromosome, size of the deleted region, and their sex. We reclassified the X/Y translocations into new types based on the breakpoints of the X and Y chromosomes. Conclusion: X/Y translocations have substantial phenotypic diversity, and the genetic classification standards are not unified. With the development of molecular cytogenetics, it is necessary to combine multiple genetic methods to obtain an accurate and reasonable classification. Thus, clarifying their genetic causes and effects promptly will help in genetic counseling, prenatal diagnosis, preimplantation genetic testing, and improvement in clinical treatment strategies.
Language	English
Publishing date	2023-05-18
Publishing country	England
Document type	Journal Article
ZDB-ID	2420849-8
ISSN	1755-8166
ISSN	1755-8166
DOI	10.1186/s13039-023-00639-z
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Heteroepitaxy of La2O3 and La(2-x)Y(x)O3 on GaAs (111)A by atomic layer deposition: achieving low interface trap density.

Wang, Xinwei / Dong, Lin / Zhang, Jingyun / Liu, Yiqun / Ye, Peide D / Gordon, Roy G

Nano letters

2013 Volume 13, Issue 2, Page(s) 594–599

Abstract: ... La(2-x)Y(x)O(3), on GaAs(111)A. High-quality epitaxial La(2-x)Y(x)O(3) thin films are achieved ...

Abstract	GaAs metal-oxide-semiconductor devices historically suffer from Fermi-level pinning, which is mainly due to the high trap density of states at the oxide/GaAs interface. In this work, we present a new way of passivating the interface trap states by growing an epitaxial layer of high-k dielectric oxide, La(2-x)Y(x)O(3), on GaAs(111)A. High-quality epitaxial La(2-x)Y(x)O(3) thin films are achieved by an ex situ atomic layer deposition (ALD) process, and GaAs MOS capacitors made from this epitaxial structure show very good interface quality with small frequency dispersion and low interface trap densities (D(it)). In particular, the La(2)O(3)/GaAs interface, which has a lattice mismatch of only 0.04%, shows very low D(it) in the GaAs bandgap, below 3 × 10(11) cm(-2) eV(-1) near the conduction band edge. The La(2)O(3)/GaAs capacitors also show the lowest frequency dispersion of any dielectric on GaAs. This is the first achievement of such low trap densities for oxides on GaAs.
Language	English
Publishing date	2013-01-07
Publishing country	United States
Document type	Journal Article
ISSN	1530-6992
ISSN (online)	1530-6992
DOI	10.1021/nl3041349
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Facile Synthesis of Amorphous C 3 N 4 Zn x O y (x, y = 0.32–1.10) with High Photocatalytic Efficiency for Antibiotic Degradation

Ran Zhang / Jing Xian Dong / Guo Liang Gao / Xue Lu Wang / Ye-Feng Yao

Catalysts, Vol 10, Iss 514, p

2020 Volume 514

Abstract: ... free photocatalyst C 3 N 4 Zn x O y (x, y = 0.32–1.10) was successfully synthesized from urea and ZnO ...

Abstract	The development of novel, noble metal-free semiconductor catalysts with high efficiency is of great importance for the degradation of organic compounds. Among them, amorphous materials have been extensively studied for their unique and commercially useful properties. Here, a completely amorphous, noble metal-free photocatalyst C 3 N 4 Zn x O y (x, y = 0.32–1.10) was successfully synthesized from urea and ZnO by a simple high-temperature polymerization method. As the Zn content increased, the short-range ordered structures of the amorphous samples were still retained, as revealed by XPS, FTIR, and ssNMR. Meanwhile, the -CN 3 structures were observed to be gradually destroyed, which may make the amorphous state more favorable for photocatalytic reactions. Compared with g-C 3 N 4 , the amorphous samples showed significantly reduced intensities in the photoluminescence spectra, indicating that the recombination rate of the photo-generated charge carriers was greatly reduced. It was confirmed that the optimized sample (C 3 N 4 Zn 0.61 O 0.61 ) achieved a photocatalytic efficiency of 86.1% in the degradation of tetracycline hydrochloride under visible light irradiation within 1 h. This is about 2 times higher than that of both g-C 3 N 4 and ZnO. This study emphasizes the importance of the amorphous structure in photocatalytic reactions, and this synthetic strategy may provide an effective model for designing other novel catalysts.
Keywords	amorphous ; photocatalyst ; photocatalytic reaction ; tetracycline ; degradation ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
Subject code	290
Language	English
Publishing date	2020-05-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article: [Genetic analysis of a fetus with de novo 46,X,der(X)t(X;Y)(q26;q11)].

Wang, Yongan / Zhang, Rong / Yin, Ting / Wang, Zhiwei / Zheng, Anshun / Wang, Leilei

Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics

2023 Volume 40, Issue 5, Page(s) 593–597

Abstract: Objective: To carry out prenatal genetic testing for a fetus with de novo 46,X,der(X)t(X;Y)(q26 ... q11 segment of the fetal Y chromosome was connected to the Xq26 of the X chromosome, suggesting a Xq ... of the long arm of the fetal X chromosome [arr [hg19] Xq26.3q28(133912218_154941869)×1], and 42 Mb duplication ...

Abstract	Objective: To carry out prenatal genetic testing for a fetus with de novo 46,X,der(X)t(X;Y)(q26;q11). Methods: A pregnant woman who had visited the Birth Health Clinic of Lianyungang Maternal and Child Health Care Hospital on May 22, 2021 was selected as the study subject. Clinical data of the woman was collected. Peripheral blood samples of the woman and her husband and umbilical cord blood of the fetus were collected and subjected to conventional G-banded chromosomal karyotyping analysis. Fetal DNA was also extracted from amniotic fluid sample and subjected to chromosomal microarray analysis (CMA). Results: For the pregnant women, ultrasonography at 25th gestational week had revealed permanent left superior vena cava and mild mitral and tricuspid regurgitation. G-banded karyotyping analysis showed that the pter-q11 segment of the fetal Y chromosome was connected to the Xq26 of the X chromosome, suggesting a Xq-Yq reciprocal translocation. No obvious chromosomal abnormality was found in the pregnant woman and her husband. The CMA results showed that there was approximately 21 Mb loss of heterozygosity at the end of the long arm of the fetal X chromosome [arr [hg19] Xq26.3q28(133912218_154941869)×1], and 42 Mb duplication at the end of the long arm of the Y chromosome [arr [hg19] Yq11.221qter(17405918_59032809)×1]. Combined with the search results of DGV, OMIM, DECIPHER, ClinGen and PubMed databases, and based on the guidelines from the American College of Medical Genetics and Genomics (ACMG), the deletion of arr[hg19] Xq26.3q28(133912218_154941869)×1 region was rated as pathogenic, and the duplication of arr[hg19] Yq11.221qter(17405918_59032809)×1 region was rated as variant of uncertain significance. Conclusion: The Xq-Yq reciprocal translocation probably underlay the ultrasonographic anomalies in this fetus, and may lead to premature ovarian insufficiency and developmental delay after birth. Combined G-banded karyotyping analysis and CMA can determine the type and origin of fetal chromosomal structural abnormalities as well as distinguish balanced and unbalanced translocations, which has important reference value for the ongoing pregnancy.
MeSH term(s)	Humans ; Child ; Pregnancy ; Female ; Vena Cava, Superior ; In Situ Hybridization, Fluorescence ; Chromosome Aberrations ; Karyotyping ; Translocation, Genetic ; Fetus ; Prenatal Diagnosis/methods
Language	Chinese
Publishing date	2023-04-27
Publishing country	China
Document type	English Abstract ; Journal Article
ISSN	1003-9406
ISSN	1003-9406
DOI	10.3760/cma.j.cn511374-20220728-00502
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Spectral properties and highly efficient continuous-wave laser operation in Nd-doped Sr(1-x)Y(x)F(2+x) crystals.

Ma, F K / Jiang, D P / Su, L B / Wang, J Y / Cai, W / Liu, J / Zheng, J G / Zheng, W G / Xu, J / Liu, Y

Optics letters

2016 Volume 41, Issue 3, Page(s) 501–503

Abstract: Spectral properties of Nd:Sr(1-x)Y(x)F(2+x) crystals were investigated. Compared with Nd:SrF2 ... the spectral parameters of Nd:Sr(1-x)Y(x)F(2+x) (x=0.05,0.1) were altered in a large scale. LD-pumped true CW ...

Abstract	Spectral properties of Nd:Sr(1-x)Y(x)F(2+x) crystals were investigated. Compared with Nd:SrF2, the spectral parameters of Nd:Sr(1-x)Y(x)F(2+x) (x=0.05,0.1) were altered in a large scale. LD-pumped true CW laser has been demonstrated in the crystals. The slope efficiency up to 43.5% in 0.43% Nd:Sr0.95Y0.05F2.05 was achieved. The system is a promising candidate for highly efficient lasers.
Language	English
Publishing date	2016-02-01
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1539-4794
ISSN (online)	1539-4794
DOI	10.1364/OL.41.000501
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article: Verification of a cryptic t(Y;15) translocation in a male with an apparent 45,X karyotype.

Qin, Shengfang / Wang, Xueyan / Wang, Jin / Zhang, Zhuo / Chen, Ximin / Yin, Yan / Ye, Mengling / Li-Ling, Jesse

Molecular cytogenetics

2022 Volume 15, Issue 1, Page(s) 3

Abstract: ... an apparent 45,X karyotype. STR analysis showed that he possessed a short arm of the Y chromosome, including ... A FISH assay of DXZ1 and DYZ3 probes showed a green signal of the X centromere and a red of the Y ... Background: A rare disease is that an individual with a non-chimeric karyotype of 45,X develops ...

Abstract	Background: A rare disease is that an individual with a non-chimeric karyotype of 45,X develops into a male. We explored the genetic aetiology of an infertile male with an apparent 45,X karyotype, which was subsequently verified as cryptic translocation between chromosomes Y and 15. Methods: DNA was extracted from the patient's peripheral blood. A range of genetic testing was performed, including conventional chromosomal karyotyping, short tandem repeat (STR) analysis for azoospermia factor (AZF) region, fluorescence in situ hybridization (FISH) with specific probes groups of DXZ1/DYZ3, DYZ3/D15Z1/PML and SRY/D15Z1/PML, and chromosomal microarray analysis (CMA) for genomic copy number variations (CNVs). Results: The patient was found to have an apparent 45,X karyotype. STR analysis showed that he possessed a short arm of the Y chromosome, including the SRY gene; however, he was missing the long arm of the Y chromosome, including AZFa + b + c and Yqter. A FISH assay of DXZ1 and DYZ3 probes showed a green signal of the X centromere and a red of the Y centromeric signal on a D-group-sized chromosome. By FISH assaying with D15Z1 and DYZ3 probes, chromosomes 15 and Y centromeric signals appeared closely on a single chromosome, as the PML control probe ascertained. A further FISH assay with D15Z1 and SRY probes revealed a signal of the SRY gene at the end of one arm of chromosome 15. The result of the CMA indicated a deletion with an approximate size of 45.31 Mb spanning from Yq11 to Yter. Conclusion: Our study enriched the karyotype-phenotype correlation of Y and 15 chromosomes translocation. It strengthened the critical roles of molecular genetic techniques in identifying the chromosomal breakpoints and regions involved. Genetic aetiology can guide early intervention in childhood and assisted reproduction in adulthood.
Language	English
Publishing date	2022-02-14
Publishing country	England
Document type	Journal Article
ZDB-ID	2420849-8
ISSN	1755-8166
ISSN	1755-8166
DOI	10.1186/s13039-022-00581-6
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Unbalanced X;Y translocations carrying SRY in prenatal settings: Clinical, molecular, and cytogenetic analysis of three cases.

Liu, Xijing / Zhang, Zhu / Zhang, Xuan / Wang, Jiamin / Jiang, Jieni / Li, Lingping / Wang, He / Liu, Shanling / Hu, Ting

Prenatal diagnosis

2024

Abstract: ... of testicular tissue with a 46, XX karyotype. Three prenatal cases of unbalanced X; Y translocation carrying SRY ... inherited unbalanced X; Y translocations carrying SRY and skewed XCI presenting with normal female external ... genitalia.: Conclusion: This study reports that cases with unbalanced X; Y translocations carrying SRY ...

Abstract	Background: Generally, the translocation of SRY onto one of the X chromosomes leads to 46, XX testicular disorders of sex development, a relatively rare condition characterized by the presence of testicular tissue with a 46, XX karyotype. Three prenatal cases of unbalanced X; Y translocation carrying SRY were identified in this study. Methods: Structural variants were confirmed using single nucleotide polymorphism array and chromosomal karyotyping. X chromosome inactivation (XCI) was also analyzed. Detailed clinical features of the three cases were collected. Results: We identified two fetuses with maternal inherited unbalanced X; Y translocations carrying SRY and skewed XCI presenting with normal female external genitalia, and one fetus with de novo 46, XX (SRY+) and random XCI manifested male phenotypic external genitalia. Conclusion: This study reports that cases with unbalanced X; Y translocations carrying SRY manifested a normal female external genitalia in a prenatal setting. We speculate that the skewed XCI mediates the silence of SRY. In addition, our study emphasizes that combining clinical findings with pedigree analysis is critical for estimating the prognosis of fetuses with sex chromosome abnormalities.
Language	English
Publishing date	2024-01-10
Publishing country	England
Document type	Journal Article
ZDB-ID	82031-3
ISSN	1097-0223 ; 0197-3851
ISSN (online)	1097-0223
ISSN	0197-3851
DOI	10.1002/pd.6520
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 1625: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Book ; Online: Observation of non-superconducting phase changes in LuH$_{2\pm\text{x}}$N$_y$

Xing, Xiangzhuo / Wang, Chao / Yu, Linchao / Xu, Jie / Zhang, Chutong / Zhang, Mengge / Huang, Song / Zhang, Xiaoran / Yang, Bingchao / Chen, Xin / Zhang, Yongsheng / Guo, Jian-gang / Shi, Zhixiang / Ma, Yanming / Chen, Changfeng / Liu, Xiaobing

2023

Abstract: ... hydride LuH$_{2\pm\text{x}}$N$_y$ with the same structure and composition as in the main phase of near ... ambient superconductor1. We find a new purple phase of LuH$_{2\pm\text{x}}$N$_y$ between blue and pink ... a notable temperature-induced resistance anomaly of structural and/or electronic origin in LuH$_{2\pm\text{x ...

Abstract	The recent report of near-ambient superconductivity in nitrogen doped lutetium hydride has triggered a worldwide fanaticism and raised major questions about the latest claims. An intriguing phenomenon of color changes in pressurized samples from blue to pink to red was observed and correlated with the claimed superconducting transition, but the origin and underlying physics of these color changes have yet to be elucidated. Here we report synthesis and characterization of high-purity nitrogen doped lutetium hydride LuH$_{2\pm\text{x}}$N$_y$ with the same structure and composition as in the main phase of near-ambient superconductor1. We find a new purple phase of LuH$_{2\pm\text{x}}$N$_y$ between blue and pink phase, and reveal that the sample color changes likely stem from pressure-driven redistribution of nitrogen and its interaction with the LuH$_2$ framework. No superconducting transition is found in all blue, purple, pink and red phases at temperatures 1.8-300 K and pressures 0-30 GPa. Instead, we identify a notable temperature-induced resistance anomaly of structural and/or electronic origin in LuH$_{2\pm\text{x}}$N$_y$, which is most pronounced in the pink phase and may have been erroneously interpreted as a sign of superconducting transition. This work establishes key benchmarks for nitrogen doped lutetium hydrides, allowing an in-depth understanding of the novel pressure-induced phase changes. Comment: 17 pages and 5 figures in the main text. 9 pages and 12 figures in the Supplementary Material. Any valuable comments and suggestions are warmly welcomed
Keywords	Condensed Matter - Superconductivity ; Condensed Matter - Materials Science
Publishing date	2023-03-30
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top

Full text online

More links

Kategorien

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

Full text online

More links

Kategorien

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

Full text online

More links

Kategorien

Inter-library loan at ZB MED