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Anomalous negative magnetoresistance in quantum dot Josephson junctions with Kondo correlations

Science China(Physics,Mechanics & Astronomy) 2024年第8期67卷 3-13页

作者： Mingtang deng Chunlin Yu Guangyao Huang Rosa López Philippe Caroff Sepideh Ghalamestani Gloria Platero Hongqi Xu institute for Quantum information&State Key Laboratory of High Performance Computing College of Computer Science and TechnologyNational University of Defense TechnologyChangsha 410073China NanoLund and Division of Solid State Physics Lund UniversityLund S-22100Sweden China Greatwall Quantum Laboratory Changsha 410006China institut de física interdisciplinària i de sistemes complexos ifisc Palma de Mallorca E-07122Spain instituto de Ciencia de Materiales de Madrid Madrid 28049Spain Beijing Key Laboratory of Quantum devices Key Laboratory for the Physics and Chemistry of Nanodevicesand Department of ElectronicsPeking UniversityBeijing 100871China Beijing Academy of Quantum information Sciences Beijing 100193China Hefei National Laboratory Hefei 230088China

The interplay between superconductivity and the Kondo effect has stimulated significant interest in condensed matter *** compete when their critical temperatures are close and can give rise to a quantum phase transition that can mimic Majorana zero ***,we have fabricated and measured Al-inSb nanowire quantum dot-Al *** the Kondo regime,a supercurrent-induced zero-bias conductance peak *** zero-bias peak shows an anomalous negative magnetoresistance(NMR)at weak magnetic *** attribute this anomalous NMR to quasiparticle trapping at vortices in the superconductor leads as a weak magnetic field is *** trapping effect lowers the quasiparticle-caused dissipation and thus enhances the Josephson *** work connects the vortex physics and the supercurrent tunneling in Kondo regimes and can help further understand the physics of Josephson quantum dot system.

关键词： quantum dot Kondo correlation inSb nanowire quasiparticle trapping

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Melatonin in the seasonal response of the aphid Acyrthosiphon pisum

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insect Science 2020年第2期27卷 224-238页

作者： Miquel Barbera Laura Escriva Jorge Mariano Collantes-Alegre Giuseppe Meca Ezio Rosato David Martinez-Torres institut de Biologia integrativa de sistemes&institut Cavanilles de Biodiversitati Biologia Evolutiva Parc Cientific Universitat de ValenciaC/Catedmtico Jose Beltran n°246980PaternaValenciaSpain Laboratory of food Chemistry and Toxicology Faculty of PharmacyUniversitat de ValenciaBurjassotSpain department of Genetics University of LeicesterLeicesterLE17RHUK

Aphids display life cycles largely determined by the *** the warm long-day *** aphid species reproduce by viviparous *** shortening of the photoperiod in autumn induces a switch to sexual *** and sexual females mate to produce overwintering resistant *** addition to this full life cycle(holocycle),there are anholocyelic lineages that do not respond to changes in photoperiod and reproduce continuously by *** molecular or hormonal events that trigger the scasonal response(i.c,induction of the sexual phenotypes)are still *** circadian synthesis of melatonin is known to play a key role in vertebrate photoperiodism,the involvement of the circadian clock and/or of the hor-mone melatonin in insect seasonal responses is not so well *** we show that melatonin levels in the aphid Acyrthosiphon pisum are significantly higher in holocyclice aphids reared under short days than under long days,while no differences were found between anholoeyelic aphids under the same *** also found that melatonin is localized in the aphid suboesophageal ganglion(SOG)and in the thoracic ganglionic mass(TGM).in analogy to vertcbrates,insect-type arylalkxylamine N-acetyltransferases(i-AANATs)are thought to play a key role in melatonin *** measured the expression of four i-AANAT genes identified in *** and localized two of them in situ in the insect central nervous systems(CNS).Levels of expression of these genes were compatible with the quantities of melatonin ***,like melatonin,expression of these genes was found in the SOG and the TGM.

关键词： AANAT aphid in situ hybridization melatonin photoperiodism quantification

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Predictive clinical features of cardioembolic infarction in patients aged 85 years and older

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Journal of Geriatric Cardiology 2019年第11期16卷 793-799页

作者： Ana Maria Carbajo-García Jonatan Cortés AdriàArboix Joan Massons Laura Díez Enric Vergés Jordi Arboix-Alió Luís García-Eroles Cerebrovascular Division Department of NeurologyHospital Universitari del Sagrat CorUniversitat de BarcelonaBarcelonaCataloniaSpain department of Sports Sciences Ramon Llull UniversityFPCEE BlanquernaBarcelonaCataloniaSpain Director d’Organitzaciói sistemes d’informació Gerència Territorial Metropolitana NordInstitut Catalàde la SalutBarcelonaCataloniaSpain

Objective To assess predictive clinical factors of cardioembolic infarction in very old patients(85 years of age and older).Methods Prospective hospital-based stroke registry("The Sagrat Cor Hospital of Barcelona Stroke Registry")is an acute-care teaching hospital in Barcelona,Catalonia,*** 956 first-ever cardioembolic stroke patients included in the stroke registry over a 24-year period,639 were younger than 85 years of age and 317 were 85 years or older(mean age:88.9 years).demographics,clinical characteristics,risk factors and early outcome were *** of cardioembolic infarction in the oldest age group were assessed by multivariate *** in a logistic regression model based on demographics,risk factors,clinical features and complications,female gender(odds ratio[OR]=1.74,95%confidence interval[Ci]:1.27–2.39),heart failure(OR=2.27,95%Ci:1.46–3.56),altered consciousness(OR=1.76,95%Ci:1.28–2.42),and infectious complications(OR=2.01,95%Ci:1.39–2.91)were predictors of cardioembolic stroke in the oldest age *** contrast,heavy smoking,heart valve disease,hypertension,headache,early seizures,sensory deficit,and involvement of the posterior cerebral artery were independently associated with cardioembolic stroke in the younger *** identification of a differential clinical profile of cardioembolic stroke between patients aged 85 years or more and those younger than 85 years helps clinicians to the optimal management of ischemic infarction in the oldest segment of the population.

关键词： Cardioembolic stroke Clinical features ischemic infarction Stroke Very old patients

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