Complete controllability of quantum systems

Sufficient conditions for complete controllability of $N$-level quantum systems subject to a single control pulse that addresses multiple allowed transitions concurrently are established. The results are applied in particular to Morse and harmonic-oscillator systems, as well as some systems with degenerate energy levels. Morse and harmonic oscillators serve as models for molecular bonds, and the standard control approach of using a sequence of frequency-selective pulses to address a single transition at a time is either not applicable or only of limited utility for such systems.Comment: 8 pages, expanded and revised versio

Master’s of Science Programs in Information Systems: Match Between the Model Curriculum and Existing Programs

In a rapidly changing Information Systems (IS) field, the marketability of students from IS programs is partly related to the responsiveness of the programs to changing market conditions. Thus, curriculum development and periodic finetuning plays a very important role. This paper is an attempt to evaluate the current status of Master’s of Science programs in IS and to study their fit with the recently proposed MSIS 2000 model curriculum. We studied 86 Master’s of Science programs in IS and mapped them onto the proposed curriculum structure. Matches and mismatches with the proposed model curriculum are reported in our results. The results indicate the fit to be somewhat mixed. We have also presented some implications for university administrators and faculty for using the findings of this study and also for further curriculum research

Quantum control without access to the controlling interaction

In our model a fixed Hamiltonian acts on the joint Hilbert space of a quantum system and its controller. We show under which conditions measurements, state preparations, and unitary implementations on the system can be performed by quantum operations on the controller only. It turns out that a measurement of the observable A and an implementation of the one-parameter group exp(iAr) can be performed by almost the same sequence of control operations. Furthermore measurement procedures for A+B, for (AB+BA), and for i[A,B] can be constructed from measurements of A and B. This shows that the algebraic structure of the set of observables can be explained by the Lie group structure of the unitary evolutions on the joint Hilbert space of the measuring device and the measured system. A spin chain model with nearest neighborhood coupling shows that the border line between controller and system can be shifted consistently.Comment: 10 pages, Revte

Getting Off on the Right Foot: Addressing Severe Lymphedema through a Novel Shoe Design

Engineering Projects in Community Service (EPICS) is a service-learning design program run by the College of Engineering at Purdue University. EPICS teaches students design skills by providing solutions for individuals, communities, and organizations in the surrounding area while mirroring engineering industry standards. Biomedical Engineering is a team within EPICS that strives to serve community partners through biomedical applications. HR is a patient who suffers from severe lymphedema. This condition results in her foot swelling three times its original size and requires her to utilize weekly leg compression therapy. Prescription shoes are slightly adequate. However, they lead to sores and pain due to fitting improperly and the expansion of her legs before her next compression treatment. HR reached out to the Weldon School of Biomedical Engineering to seek a solution. This project entails the design and fabrication of a prototype shoe that addresses the patient’s need to walk with shoes while effectively accommodating her symptoms. The user needs include condition accommodation, aesthetics, comfort, ease of use, cost, utility, and standardized documentation language. The design uses a novel break-sole passive expansion system that exceeds the normal passive expandable properties of other shoes, in addition to several expandable points that aid in functionality and comfort. The goal is that with this product, HR can get back to the things that she loves, including photography and hiking

Statistics of Impedance, Local Density of States, and Reflection in Quantum Chaotic Systems with Absorption

We are interested in finding the joint distribution function of the real and imaginary parts of the local Green function for a system with chaotic internal wave scattering and a uniform energy loss (absorption). For a microwave cavity attached to a single-mode antenna the same quantity has a meaning of the complex cavity impedance. Using the random matrix approach, we relate its statistics to that of the reflection coefficient and scattering phase and provide exact distributions for systems with beta=2 and beta=4 symmetry class. In the case of beta=1 we provide an interpolation formula which incorporates all known limiting cases and fits excellently available experimental data as well as diverse numeric tests.Comment: 4 pages, 1 figur

An evaluation of knowledge, attitude and practice of pharmacovigilance among prescribers in a teaching hospital of south India

Background: Adverse drug reactions (ADRs) represent a serious health problem. Effective generation of ADR related data helps in practicing evidence-based medicine and thus prevents many adverse drug reactions. Spontaneous reporting of ADRs has remained the major sources of information of pharmacovigilance. Underreporting of ADRs is a common problem. In order to improve the reporting rate, it is important to improve the Knowledge, Attitude and Practices (KAP) of the prescribers regarding ADR reporting and Pharmacovigilance. Hence this study was undertaken to assess the knowledge, attitude and practice regarding Pharmacovigilance among doctors of Shridevi Institute of Medical Sciences and Research Hospital, Tumkur, Karnataka.Methods: This was a cross sectional, observational, questionnaire based study conducted using a predesigned Knowledge Attitude Practice (KAP) questionnaire among 110 doctors. The completed KAP questionnaire was collected and data analyzed.Results: Most of the doctors (98.15%) accepted that reporting ADR is necessary. 67.31% agreed that ADR reporting is necessary for identifying safety of the drug and 94.44% agreed that pharmacovigilance should be taught in detail to health-care professionals. But there was a huge gap between the ADR experienced (80%), and ADR reported (25.45%) by the prescribers. Only 29.09% medical professionals have ever seen the ADR reporting form and only 16.36% respondents have been trained on reporting on ADR.Conclusions: Study revealed that the majority of the doctors had a good knowledge but poor attitude and practice of pharmacovigilance. They should be trained properly on ADR reporting to improve the current scenario in the pharmacovigilance program of the country

Learning 3D Human Pose from Structure and Motion

3D human pose estimation from a single image is a challenging problem, especially for in-the-wild settings due to the lack of 3D annotated data. We propose two anatomically inspired loss functions and use them with a weakly-supervised learning framework to jointly learn from large-scale in-the-wild 2D and indoor/synthetic 3D data. We also present a simple temporal network that exploits temporal and structural cues present in predicted pose sequences to temporally harmonize the pose estimations. We carefully analyze the proposed contributions through loss surface visualizations and sensitivity analysis to facilitate deeper understanding of their working mechanism. Our complete pipeline improves the state-of-the-art by 11.8% and 12% on Human3.6M and MPI-INF-3DHP, respectively, and runs at 30 FPS on a commodity graphics card.Comment: ECCV 2018. Project page: https://www.cse.iitb.ac.in/~rdabral/3DPose

Effects of Genotype and Date of Harvest on Infection of Peanut Seed by Aspergillus flavus and Subsequent Contamination with Aflatoxin

Several peanut genotypes reported as resistant, susceptible or highly susceptible to in vitro colonization of rehydrated, mature, stored, undamaged seed by Aspergillus flavus (IVSCAF) were tested for natural seed infection by A. flavus and other fungi in two or more replicated field trials at ICRISAT Center, Patancheru, India, in 1979–1984. Undamaged pods were sampled before maturity, at optimum maturity (normal harvest) and when over - mature (late harvest) and seed examined for infection by A. flavus and other fungi. In the 1983 and 1984 rainy and 1983/84 postrainy seasons, only four genotypes (one resistant and three susceptible) were tested, and seed were also tested for aflatoxin content. In all seasons the genotypes reported as IVSCAF - resistant had significantly lower levels of seed infection with A. flavus and other fungi than did genotypes reported as IVSCAF - susceptible. Cenotypic differences in levels of seed infection by A. flavus were consistent over seasons. The resistant cultivar J11 had a significantly lower aflatoxin content than the other three IVSCAF - susceptible genotypes tested in the 1983–1984 seasons. Drought stress in the 1984 season apparently increased susceptibility to seed infection by A. flavus and other fungi, and to aflatoxin contamination, in all cultivars. Seed infection by A. flavus and other fungi, and aflatoxin contamination increased with increasing maturity of pods, indicating the importance of lifting the peanut crop at optimum maturity