Electron transport across complex oxide heterointerfaces

Deze these is het eerste verschenen werk dat het gebruik van BEEM om heet elektron transport in complexe oxide heterostructuren te bestuderen, demonstreert. Belangrijke transportparameters van LSMO zoals de hete elektron attenuatie-lengte en de energieafhankelijkheid zijn succesvol verkregen. Dit werk kan verder uitgebouwd worden naar studies van andere complexe oxides zoals ruthenates en multiferroics. Een belangrijke conclusie in deze these is de sterke bijdrage van polaronbotsingen,naast electron-electron botsingen, aan de attenuatie-lengte in zulke transitie metaaloxides. Er is recent veel interesse in device structuren gebaseerd op heet elektron transport zoals photovoltaische effecten in multiferroics of ferroelektrischetunneling elektroweerstand. De gebruikte benadering van ‘non-equilibrium’ transport is ook interessant voor theoretici, waar het gebruikt kan worden om ‘equilibrium self-energie’ correcties, veroorzaakt door correlaties, te meten. De unieke mogelijkheid om met deze techniek elektronen transport te visualiseren en kwantificeren in verborgen lagen en grensvlakken is zeer belangrijk voor het ontwerpen en begrijpen van transport in elektronische oxide devices, dit werk is een eerste demonstratie in deze richting

A PROSPECTIVE STUDY ON PREVALENCE OF EPILEPSY DISORDERS AND DRUG UTILIZATION PATTERN

ABSTRACTObjective: Epilepsy is the second most common neurologic disorder after stroke. The study was undertaken to determine the prevalence of epilepsydisorders and drug utilization pattern in a patient population of Dehradun. This study was conducted in a private health clinic.Methods: A questionnaire was prepared that includes many practical questions regarding epilepsy seizure type, medication prescribed, their healthstatus, and compliance. A total of 200 cases of epilepsy were reported.Results: The study showed the prevalence of epilepsy disorders which was most common among males (65%) as compared to females (35%). 44%of epilepsy disorders were found prevalent among the age group between 30 and 40 years. The most common type of epilepsy disorder is primarygeneralized seizure (62%) followed by partial seizures (23%), focal disorder (6%), grand mal cortical focal epilepsy (5%), typical seizures (3.5%),refractory seizures (3%), and others (2.5%).Conclusion: Epilepsy is one of the most serious neurological disorders in terms of both prevalence and cumulative incidence. Good education andcounseling is required for coping up the challenges of this condition as well for improving patient compliance. For decreasing the chances of adverseeffects and avoiding drug interactions monotherapy is important. Health-care providers and patients can together formulate a better therapeutic planfor achieving a seizure-free status without adverse effects.Keywords: Seizures, Antiepileptic drugs, Compliance

Evolution of the bulk properties, structure, magnetic order, and superconductivity with Ni doping in CaFe2-xNixAs2

Magnetization, susceptibility, specific heat, resistivity, neutron and x-ray diffraction have been used to characterize the properties of single crystalline CaFe2-xNixAs2 as a function of Ni doping for x varying from 0 to 0.1. The combined first-order structural and magnetic phase transitions occur together in the undoped system at 172 K, with a small decrease in the area of the a-b plane along with an abrupt increase in the length of the c-axis in the orthorhombic phase. With increasing x the ordered moment and transition temperature decrease, but the transition remains sharp at modest doping while the area of the a-b plane quickly decreases and then saturates. Warming and cooling data in the resistivity and neutron diffraction indicate hysteresis of ~2 K. At larger doping the transition is more rounded, and decreases to zero for x=0.06. The susceptibility is anisotropic for all values of x. Electrical resistivity for x = 0.053 and 0.06 shows a superconducting transition with an onset of nearly 15 K which is further corroborated by substantial diamagnetic susceptibility. For the fully superconducting sample there is no long range magnetic order and the structure remains tetragonal at all temperature, but there is an anomalous increase in the area of the a-b plane in going to low T. Heat capacity data show that the density of states at the Fermi level increases for x > 0.053 as inferred from the value of Sommerfeld coefficient. The regime of superconductivity is quite restrictive, with a maximum TC of 15 K and an upper critical field Hc2=14 T. Superconductivity disappears in the overdoped region.Comment: 14 pages, 12 figures. Submitted to Phys. Rev.

A case of Dentigerous Cyst in Association of Impacted Mandibular Canine

Dentigerous cyst being the second most common odontogenic cyst which constitutes around 20-24% of all the odontogenic cysts involving the jaws. Usually, these cysts remain asymptomatic and rarely cause enlargement and displacement of associated tooth. It develops by an accumulation of fluid between reduced enamel epithelium and the tooth crown of an unerupted tooth. This case report presents conservative treatment modality for 17-year-old female patient, diagnosed with a dentigerous cyst in association of impacted mandibular canine. The patient was treated with a minimal invasive approach, enucleation followed by marsupialization under local anesthesia, preserving all the teeth in occlusion

Real-Time Traffic Management in Smart Cities: Insights from the Traffic Management Simulation and Impact Analysis

Using simulation and empirical data analysis, this research examines the efficacy of real-time traffic control in smart cities. Traffic data collected in real time from strategically placed sensors shows that traffic volume was reduced by 8.33% on Main Street after a traffic light timing change was implemented. Traffic volume at Highway Junction was also significantly reduced by 5.56% as a result of traffic sign updates. On the other hand, interventions result in a relatively small decrease in traffic volume (2.78%) in the City Center. The influence of these actions is shown by the traffic simulation models, which show average vehicle speeds rising from 25 to 28 mph on Main Street, 45 to 50 mph at Highway Junction, and 30 to 32 mph in the Residential Area. The aforementioned research highlights the crucial function of data-driven decision-making in traffic management, guaranteeing effective distribution of resources and quantifiable enhancements in urban mobility. Urban planners and legislators may use these discoveries to build smart cities that are more accessible, sustainable, and efficient