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Coccidioides sp. and Treponema pallidum can both cause infections of the central nervous system if untreated. We describe a case of an immunocompetent patient living in an endemic region for Coccidioides who presented with headaches and diplopia and was found to have co-infection of coccidioidal meningitis and neurosyphilis. We highlight the importance of evaluation for CNS co-infections as they may be underdiagnosed, especially in endemic areas for coccidioidomycosis.

We report on reversible all-optical emission control and lasing in plasmonic nanoparticle lattices. By incorporating photochromic molecules into the liquid gain medium composed of organic fluorescent molecules, we realize all-optical control over gain and absorption, the two key parameters associated with both conventional and nanoscale lasing. We demonstrate reversible photoswitching between two distinct modes of operation: (1) spontaneous emission to the lattice mode, characterized by broad emission line width, low emission intensity, and large angular distribution; and (2) lasing action, characterized by very narrow (sub-nm) line widths due to the emergence of increased gain and temporal coherence in the system, approximately 3 orders of magnitude increase in emission intensity, and narrow 0.7° angular divergence of the beam. A rate-equation model is employed to describe the operation of the switchable plasmonic laser. Our results provide the first demonstration of optically tunable losses in plasmonic lattice lasers, which is an important milestone for the development of active plasmonics and paves the way for ultrafast all-optical switching of plasmonic nanolasers. acceptedVersion

Sialoliths are calcified masses that develop in salivary glands in their ducts affecting mainly the submandibular gland. The objective of this article is to contribute to the study of sialolithiasis through a case report treated by surgery preserving the submandibular gland.

Top-gated silicon nanowire transistors are fabricated by preparing all terminals (source, drain, and gate) on top of the nanowire in a single step via dose-modulated e-beam lithography. This outperforms other time-consuming approaches requiring alignment of multiple patterns, where alignment tolerances impose a limit on device scaling. We use as gate dielectric the 10-15 nm SiO(2) shell naturally formed during vapor-transport growth of Si nanowires, so the wires can be implemented into devices after synthesis without additional processing. This natural oxide shell has negligible leakage over the operating range. Our single-step patterning is a most practical route for realization of short-channel nanowire transistors and can be applied to a number of nanodevice geometries requiring nonequivalent electrodes.

Water sports continue to provide an arena of innovation for the sports engineer. The mixed fluid medium of air and water and the often harsh operating environment provide challenges in the design, instrumentation, technology implementation and material science for these sports.

I. Golf.- 1. Aerodynamics ofthe Golf Ball.- 2. Engineering Methodology in Golf Studies.- 3. Physics and Mechanics of the Golf Swing.- 4. Eye and Head Movements During the Golf Putting Stroke.- II. Tennis.- 5. Tennis Ball Aerodynamics and Dynamics.- 6. Shoe-Surface Interaction in Tennis.- 7. Biomechanics of Tennis Strokes.- 8. Optimizing Ball and Racket Interaction.- III. Baseball.- 9. Biomechanics of Pitching.- 10. The Rising Fastball and Other Perceptual Illusions of Batters.- IV. Football and Soccer.- 11. Aerodynamics of the Forward Pass.- 12. Biomechanics of Tackling.- 13. Biomechanics and Aerodynamics in Soccer.- V. Basketball.- 14. Aerodynamics and Biomechanics of the Free Throw.- 15. Make Every Free Throw.- VI. Performance and Rehabilitation.- 16. Vision Training and Sports.- 17. Application ofBiomedical Principles to the Maturation of Skills in Children.- 18. Medical Advances in the Treatment of Sports Injuries.

The goal of the paper is to study the properties of a teleoperated mobile machine and produce a simulation model of the machine for later use. In this paper there are introduced a prototype of the teleoperated mobile machine and a simulation model of that machine. The challenge in teleoperation is to have a smooth and accurate control of the machine, because the operator can not feel any force. The machine is valve controlled and because of that the influence of different type of valves can be significant for the control of the machine. By means of the simulation model it is possible to test new components and hydraulic solutions for power transmission of mobile machine. The new computer controlled prototype of the teleoperated mobile machine is electrically controlled with proportional valves has been developed. The simulation model of the machine is verified with the measurements. The goal is that the main properties of computer controlled and teleoperated mobile machine are at least at the same level than in normal mechanically controlled machine, but controllability must be better because of the teleoperation. In this paper there is also introduced the principle of the automatic virtual gearbox. The prototype is equipped with two constant displacement pumps, electrically controlled pressure relief valve and supply pressure and LS pressure sensor. Therefore the information of load pressure is available and supply pressure can be controlled with the rotational speed of diesel engine and pressure relief valve. In teleoperated mobile machine the rotational speed of diesel engine is controlled with electric gas. With these components and a computer control it is possible to set supply pressure level according to the needed load pressure level.Copyright © 2004 by ASME

Continuing improvement in processing speed has made it feasible to solve the Reynolds-Averaged Navier-Stokes equations for simple three-dimensional flows on advanced workstations. Combining multiple workstations into a network-based heterogeneous parallel computer allows the application of programming principles learned on MIMD (Multiple Instruction Multiple Data) distributed memory parallel computers to the solution of larger problems. An overset-grid flow solution code has been developed which uses a cluster of workstations as a network-based parallel computer. Inter-process communication is provided by the Parallel Virtual Machine (PVM) software. Solution speed equivalent to one-third of a Cray-YMP processor has been achieved from a cluster of nine commonly used engineering workstation processors. Load imbalance and communication overhead are the principal impediments to parallel efficiency in this application.

The 6th Remote Engineering and Virtual instrumentation Conference (REV 2009) was held at the University of Bridgeport in Bridgeport, Connecticut, USA during the period of June 22 â?? 25, 2009. The conference brought together engineering researchers, educators, and professionals to explore the fundamentals, future, and application of remote engineering in both industry and academia. Participants delivered papers, presented demonstrations, research posters, and shared experiences in virtual engineering. REVâ??09 drew more than 100 engineers, scientists and educators from around the world. Most of the participants were from Europe, but many came from Asia, North and South America, the Middle East and as far as Australia. More than 60 papers were presented on topics ranging from Telerobotics to Virtual and Remote Labs. Workshops and Tutorials drew widespread interest and exhibitors displayed their products for integrating remote engineering into academia. Poster sessions discussed topics such as Robotic Surgery and Development of Remote Labs in Physics. The general objective of REV 2009 was to discuss fundamentals, applications and experiences within the field of online engineering, both in industry and academia. The conference presentations and papers addressed several emerging trends in online engineering, remote laboratories, virtual instrumentation and educational applications of remote engineering.

A small general-purpose teleoperated hydraulic mobile machine is studied at the Institute of Hydraulics and Automation at the Tampere University of Technology. Thanks to teleoperation, the operator of the machine is able to be in safe place during the driving when necessary. However, the actions of the machine can be dangerous for the people or the objects in the environment if problems appear for instance in the control system. On that account, safety issues must be considered carefully. Special attention has to be paid to stop the machine and start the engine again once the machine has recovered from an error situation. The goal of this paper is to describe the design and implementation of different kind of solutions to start and stop the machine wirelessly. The emergency stop can be activated through the wireless connection by the operator or by the automatic diagnostic system of the hydraulic mobile machine. The control system monitors the state of several hydraulic components such as hydraulic valves and motors by means of sensors during the operations of machine. The machine is teleoperated by using WLAN (Wireless Local Area Network) connection. The developed wireless starting system and emergency stop is totally independent of the WLAN link. In the first prototype of the wireless starting system and emergency stop, the wireless connection is carried out by using commercial, cost effective RF (Radio Frequency) modules. The data transfer protocol which is used by the modules is designed for this application. Protocol implementation is carried out with microcontrollers. Another version of the wireless starting system and emergency stop is carried out by using radio modems. The modems have better properties than the cost effective RF modules used in the first prototype due to their higher RF output power. Programmatically carried out automatic emergency stop, which stops the machine, if the WLAN connection between the control station and the machine breaks, is discussed. In that case, the independent wireless emergency stop connection is not needed. Implementations of the system are introduced in this paper. Also, some testing results and user experiences are described. Properties of these different implementations are compared: cost of the system, range, reliability and complexity of the implementation. By means of the studied results the most suitable solution to start the engine and stop the actions of the machine is chosen.Copyright © 2004 by ASME

The mobile machine subject to study is a skid steered loader equipped with boom and bucket. In order to teleoperate the mobile machine, two operator-machine interfaces, which take into account the special requirements of hydraulic machines, have been designed and tested. The operator-machine interfaces are implemented in a laptop computer equipped with a steering wheel, pedals and joystick and in a handheld computer. The performance of each interface is evaluated by carrying out tasks involving motion control and load handling. Task completion times and number of task errors are considered and compared between the different operator control interfaces and a manually operated machine. The results indicate that good performance is obtained with the laptop computer with steering wheel, although the choice of the operator-machine interface is very task dependent and the handheld computer control yields good results in some particular cases.

Attachments and their controls can be connected to hydraulic mobile machines in different ways. The traditional approach is to install hydraulic valves of the attachment close to the operator. Thereby levers of the valves can be reached from the operator seat. This, however, restricts the size and number of the valves and can be inconvenient for the operator. A more advanced and ergonomic way is to use electronic control which allows installing the valves more freely on the attachment. The operator can then control the attachment with a joystick, for example. Usually there is a microcontroller unit in an electronically controlled mobile machine. One solution is to use this unit to read the joysticks and output control signals to the valves of the attachment. However, if there is a microcontroller in the attachment as well, the wiring can be minimized and the attachment can perform intelligent functions, for example positioning, as the machine sends simple commands. The data transfer between the microcontrollers can be realized flexibly and reliably using a serial bus such as CAN. A hydraulically operated excavator for a hydraulic mobile machine is discussed as an example. The excavator has four PWM controlled spools in a sandwich type proportional mobile valve. A suitable microcontroller is chosen to interface the valves of the excavator to the CAN bus of the mobile machine. Different command sets and levels of intelligence are deliberated. Adding different types of sensors to the excavator is concerned. The sensors are used to achieve more accurate, independent and safe operation. The microcontroller unit is designed to have extra interfaces for future research with different sensors. The unit is designed, built and installed to the excavator. The design of electronics and software is presented in this paper. The excavator is attached to the hydraulically operated mobile machine and the performance of the system is tested. The test arrangement is described. The results are presented and discussed.