Abstract: The invention relates to compositions and methods for making and using recombinant bacteria that are capable of regulated attenuation and/or regulated expression of one or more antigens of interest.

Abstract: Google's smart contact lens will be used by non-diabetics to benefit from the measurement of the glucose content in the tears of the wearer as a representation of the glucose content in the blood. With this data, non-diabetics will be able to modify their diet as necessary to stabilize and optimize their blood glucose content. This will result in their avoiding the normal sharp peaks and valleys in their blood glucose levels that occur as meals are digested and instead enable them to maintain their blood glucose content at a steady level. Instead of the brain experiencing low flows of energy that causes impairment in its ability to carry out mental functions this steady flow of energy to their brain will result in enhancement of a number of executive and non-executive functions including, but not limited to, memory, decision making, reading skills, attentiveness, self-control, verbal fluency, auditory and visual reaction time and psychomotor skills.

Abstract: In an embodiment, an adaptive current limiter includes a sense element, a current pass element, and a controller. The sense element includes a first sense terminal coupled to a power supply terminal and a second sense terminal. The sense element generates a sense voltage in response to a feedback current. The current pass element includes a first terminal for receiving the feedback current, a second terminal coupled to the second sense terminal, and a control terminal. The controller is coupled to the sense element and to the control terminal for adjusting the feedback current conducted by the current pass element based on the sense voltage and a time-varying voltage signal.

Abstract: The invention provides a hoof angle measuring device for use on horses. A base is configured to be held against the bottom of a horse hoof and a pivoting arm can then be aligned with the forward edge of the hoof to define the hoof angle. Without physical or electrical contact with the base or arm, an enclosed sensor detects relative angular position between the base and arm. Supporting circuitry also provided in an enclosure accepts signal voltage from the sensor and provides a protected digital display of the measured angle magnitude for the user.

Abstract: A novel probe for recording EMG signals from muscles, in particular intravaginal signals from the pelvic floor muscles (PFM), is provided herein. The probe includes an insertion end having a suction head forming a vessel open at the top with attached electrodes and a distal end for attachment to a means of providing suction and an amplifier.

Abstract: A method and circuit for controlling feedback in, for example, a power factor converter circuit. A current sense signal is compared with a reference signal to generate a comparison signal. A clipped signal is generated from the comparison signal where the signal is a periodic waveform that transitions between two levels that are symmetrically positioned about a reference signal. The clipped signal is used to generate a summed signal at the input of an integrator. The integrator generates a feedback signal suitable for use in, for example, a power factor converter circuit.

Abstract: In an embodiment, an adaptive current limiter includes a sense element, a current pass element, and a controller. The sense element includes a first sense terminal coupled to a power supply terminal and a second sense terminal. The sense element generates a sense voltage in response to a feedback current. The current pass element includes a first terminal for receiving the feedback current, a second terminal coupled to the second sense terminal, and a control terminal. The controller is coupled to the sense element and to the control terminal for adjusting the feedback current conducted by the current pass element based on the sense voltage and a time-varying voltage signal.

Abstract: A method and circuit for controlling feedback in, for example, a power factor converter circuit. A current sense signal is compared with a reference signal to generate a comparison signal. A clipped signal is generated from the comparison signal where the signal is a periodic waveform that transitions between two levels that are symmetrically positioned about a reference signal. The clipped signal is used to generate a summed signal at the input of an integrator. The integrator generates a feedback signal suitable for use in, for example, a power factor converter circuit.

Abstract: A process for in situ production of shale oil comprises fracturing the target zone 10 of an shale oil formation using a two step approach. First, an initial set of fractures 18 is developed in the formation by using high pressure gas pulses. Second, a secondary set of fractures 28 extending and further fracturing the initial set of fractures 18 is created using a modified ANFO mix 22 wherein rubber particles acting as solid fuel are blended in with ammonium nitrate and fuel oil. The solid fuel enhances the fracturing characteristics of ANFO while minimizing its crushing and compacting tendencies. Hot high pour point oil is then injected into the formation and forced into the receptor well 16 where it is pumped to the surface. By circulating oil in the formation at carefully controlled temperatures, kerogen can be decomposed at the optimum rate to maximize the amount of oil recovered and yield high quality shale oil.

Abstract: A process for in situ production of shale oil comprises fracturing the target zone 10 of an shale oil formation using a two step approach. First, an initial set of fractures 18 is developed in the formation by using high pressure gas pulses. Second, a secondary set of fractures 28 extending and further fracturing the initial set of fractures 18 is created using a modified ANFO mix 22 wherein rubber particles acting as solid fuel are blended in with ammonium nitrate and fuel oil. The solid fuel enhances the fracturing characteristics of ANFO while minimizing its crushing and compacting tendencies. Hot high pour point oil is then injected into the formation and forced into the receptor well 16 where it is pumped to the surface. By circulating oil in the formation at carefully controlled temperatures, kerogen can be decomposed at the optimum rate to maximize the amount of oil recovered and yield high quality shale oil.

Abstract: A method and apparatus for measuring differential and absolute concentrations of a selected gas, preferably oxygen, in two flowing gas streams is described. A reference gas and a sample gas in separate gas flow paths are passed at selected temperature, pressure and flow rate over a pair of gas sensors, connected in series with their cathodes or anodes connected together, which produce output signals proportional to the differential selected gas concentration between the sensors and the absolute selected gas pressure in each sensor. The output signals may be amplified and recorded by any conventional means.

Abstract: A binder apparatus including a replaceable outer cover. The outer cover is formed of a completely recyclable material such as paperboard to allow it to be recycled after it has been removed from the ring binder mechanism. The spine of the outer cover is releasably connected to a ring binder mechanism having hinged rings for holding papers and the like by a removable rivet assembly inserted through corresponding apertures in the spine and the ring binder mechanism. The removable rivet assembly includes a sleeve having a plurality of arms, and a pin having a shaft and a head. The shaft of the pin is inserted into the sleeve and holds the arms on the sleeve outward against the ring binder mechanism, thus securing the spine of the outer cover to the ring binder mechanism. The rivet assembly is inserted into the corresponding apertures in the spine and ring binder mechanism such that, when the rivet assembly is in place, the head of the pin contacts the spine of the outer cover.

Abstract: A binder apparatus including a replaceable outer cover. The outer cover is formed of a completely recyclable material such as paperboard to allow it to be recycled after it has been removed from the ring binder mechanism. The spine of the outer cover is releasably connected to a ring binder mechanism having hinged rings for holding papers and the like by a removable rivet assembly inserted through corresponding apertures in the spine and the ring binder mechanism. The removable rivet assembly includes a sleeve having a plurality of arms, and a pin having a shaft and a head. The shaft of the pin is inserted into the sleeve and holds the arms on the sleeve outward against the ring binder mechanism, thus securing the spine of the outer cover to the ring binder mechanism. The rivet assembly is inserted into the corresponding apertures in the spine and ring binder mechanism such that, when the rivet assembly is in place, the head of the pin contacts the spine of the outer cover.

Abstract: In monitoring systems for acquiring data about a subject, such as are used, for example, in the medical, scientific and engineering fields, determination of temporal relationships between data acquired from multiple monitoring devices is facilitated by means of an interface unit which interconnects the monitoring devices with tape recorders for storing the data and a computer for processing the data. The interface unit generates various timing and control signals including a time code signal. The interface unit supplies the time code signal to the recording devices for recording simultaneously with the data. The time code signal may be a linear time code (LTC) derived from a video sync signal generated by the interface unit for synchronizing a camera. A sampling clock signal for controlling digitizing of the analog data acquired by the system is derived from the time code signal.

Abstract: The backing of a pile weather strip is scored from the underside thereof at a location between the pile strip and one side edge of the backing to permit the part of the backing between the score line and the aforesaid side to hinge so that the weather strip can be inserted into a T-slot through the opening thereof instead of being slid longitudinally into the T-slot through an open end thereof.