1,459 research outputs found
Use of Green's functions in the numerical solution of two-point boundary value problems Final report, 1 Apr. 1970 - 31 Mar. 1971
Green function in solving linear and nonlinear second order ordinary differential equations including examples in finding rendezvous and periodic orbits of restricted three body syste
The application of a numerical integration procedure developed by erwin fehlberg to the restricted problem of three bodies
Application of numerical integration procedures to restricted three-body proble
Methods of fitting multivariant functional models in the area of large computer exploita- tion final report, 23 may 1963 - 23 jul. 1965
Methods of fitting multivariant functional models in area of large computer exploitatio
Presenting in Virtual Worlds: Towards an Architecture for a 3D Presenter explaining 2D-Presented Information
Entertainment, education and training are changing because of multi-party interaction technology. In the past we have seen the introduction of embodied agents and robots that take the role of a museum guide, a news presenter, a teacher, a receptionist, or someone who is trying to sell you insurances, houses or tickets. In all these cases the embodied agent needs to explain and describe. In this paper we contribute the design of a 3D virtual presenter that uses different output channels to present and explain. Speech and animation (posture, pointing and involuntary movements) are among these channels. The behavior is scripted and synchronized with the display of a 2D presentation with associated text and regions that can be pointed at (sheets, drawings, and paintings). In this paper the emphasis is on the interaction between 3D presenter and the 2D presentation
AlGaInN laser diode technology for GHz high-speed visible light communication through plastic optical fiber and water
AlGaInN ridge waveguide laser diodes are fabricated to achieve single-mode operation with optical powers up to 100 mW at ∼420 nm∼420 nm for visible free-space, underwater, and plastic optical fiber communication. We report high-frequency operation of AlGaInN laser diodes with data transmission up to 2.5 GHz for free-space and underwater communication and up to 1.38 GHz through 10 m of plastic optical fiber
Potential Use of MALDI-ToF Mass Spectrometry for Rapid Detection of Antifungal Resistance in the Human Pathogen Candida glabrata.
The echinocandins are relatively new antifungal drugs that represent, together with the older azoles, the recommended and/or preferred agents to treat candidaemia and other forms of invasive candidiasis in human patients. If "time is of the essence" to reduce the mortality for these infections, the administration of appropriate antifungal therapy could be accelerated by the timely reporting of laboratory test results. In this study, we attempted to validate a MALDI-ToF mass spectrometry-based assay for the antifungal susceptibility testing (AFST) of the potentially multidrug-resistant pathogen Candida glabrata against anidulafungin and fluconazole. The practical applicability of the assay, reported here as MS-AFST, was assessed with a panel of clinical isolates that were selected to represent phenotypically and genotypically/molecularly susceptible or resistant strains. The data show the potential of our assay for rapid detection of antifungal resistance, although the MS-AFST assay performed at 3 h of the in vitro antifungal exposure failed to detect C. glabrata isolates with echinocandin resistance-associated FKS2 mutations. However, cell growth kinetics in the presence of anidulafungin revealed important cues about the in vitro fitness of C. glabrata isolates, which may lead to genotypic or phenotypic antifungal testing in clinical practice
Surface and electronic structure of MOCVD-grown Ga(0.92)In(0.08)N investigated by UV and X-ray photoelectron spectroscopies
The surface and electronic structure of MOCVD-grown layers of
Ga(0.92)In(0.08)N have been investigated by means of photoemission. An
additional feature at the valence band edge, which can be ascribed to the
presence of In in the layer, has been revealed. A clean (0001)-(1x1) surface
was prepared by argon ion sputtering and annealing. Stability of chemical
composition of the investigated surface subjected to similar ion etching was
proven by means of X-ray photoemission spectroscopy.Comment: 13 pages, 6 figure
Composite Polarons in Ferromagnetic Narrow-band Metallic Manganese Oxides
A new mechanism is proposed to explain the colossal magnetoresistance and
related phenomena. Moving electrons accompanied by Jahn-Teller phonon and
spin-wave clouds may form composite polarons in ferromagnetic narrow-band
manganites. The ground-state and finite-temperature properties of such
composite polarons are studied in the present paper. By using a variational
method, it is shown that the energy of the system at zero temperature decreases
with the formation of composite polaron; the energy spectrum and effective mass
of the composite polaron at finite temperature is found to be strongly
renormalized by the temperature and the magnetic field. It is suggested that
the composite polaron contribute significantly to the transport and the
thermodynamic properties in ferromagnetic narrow-band metallic manganese
oxides.Comment: Latex, no figur
Client Confidentiality as Data Security
The duty of confidentiality has been a cornerstone of the attorney-client relationship for more than four centuries. Historically, this duty was not difficult to discharge. All a lawyer had to do to comply was not affirmatively share client information in public without consent. But that has all changed. The same technologies that provide unprecedented benefits of authorized access by lawyers and their clients create unprecedented risks of unauthorized access by others. As a result, although the duty of confidentiality was once synonymous with a duty to keep client confidences secret, today the duty necessitates that lawyers keep client confidences secure as well.
This critical shift did not go entirely unnoticed by the legal profession. In 2012, the American Bar Association adopted Model Rule of Professional Conduct 1.6(c) which requires lawyers to “make reasonable efforts to prevent the inadvertent or unauthorized disclosure of, or unauthorized access to,” client confidences. This new rule had good intentions and was eventually adopted in some form by every state bar. Yet it has proven ineffective at protecting clients and difficult, if not impossible, to execute for lawyers. Worse, in the more than a decade since its adoption there has not been a single published disciplinary action for violating this duty in the digital context. Not one.
After telling the story of the legal profession’s adoption of a duty of data security and the shortcomings with the current approach to that duty, this Article seeks to outline its next chapter. Specifically, it argues that the lawyer’s duty of data security should not focus exclusively on the regulation of technological safeguards to prevent breaches and should focus instead on regulating the processes that lawyers must take to mitigate harm from potential breaches and the people that lawyers must consult when making data security decisions. This approach draws inspiration not only from professional responsibility scholarship but also from data security best practices from outside the legal profession that can help guide lawyers, protect clients, and incentivize enforcement by state bars despite constant technological innovation
Construction and Calibration of Optically Efficient LCD-based Multi-Layer Light Field Displays
Near-term commercial multi-view displays currently employ ray-based 3D or 4D light field techniques. Conventional approaches to ray-based display typically include lens arrays or heuristic barrier patterns combined with integral interlaced views on a display screen such as an LCD panel. Recent work has placed an emphasis on the co-design of optics and image formation algorithms to achieve increased frame rates, brighter images, and wider fields-of-view using optimization-in-the-loop and novel arrangements of commodity LCD panels. In this paper we examine the construction and calibration methods of computational, multi-layer LCD light field displays. We present several experimental configurations that are simple to build and can be tuned to sufficient precision to achieve a research quality light field display. We also present an analysis of moiré interference in these displays, and guidelines for diffuser placement and display alignment to reduce the effects of moiré. We describe a technique using the moiré magnifier to fine-tune the alignment of the LCD layers
- …
