摘要:
A personal care composition is provided and includes an effective amount of a repeat sequence protein polymer. The personal care composition may be a hair care composition, a skin care composition, a nail care composition, a cosmetic composition, or an over-the-counter pharmaceutical composition.
摘要:
The present invention provides means for the production of desired end-products of in vitro and/or in vivo bioconversion of biomass-based feed stock substrates, including but not limited to such materials as starch and cellulose. In particularly preferred embodiments, the methods of the present invention do not require gelatinization and/or liquefaction of the substrate.
摘要:
The invention provides isolated nucleic acid molecules encoding polypeptides having 2,5-DKG permease activity, and oligonucleotides therefrom. The isolated nucleic acid molecules can be expressed in appropriate bacterial cells to enhance the production of 2-KLG, which can subsequently be converted to ascorbic acid. Further provided are isolated polypeptides having 2,5-DKG permease acitivity, immunogenic peptides therefrom, and antibodies specific therefor. The invention also provides methods of identifying novel 2,5-DKG permeases.
摘要:
Biomolecular conjugates are provided which comprise the conjugation product of a repeat sequence protein polymer and at least one active agent. Additional aspects provide methods for their manufacture and various industrial and consumer applications.
摘要:
The present invention relates to engineering metabolic pathways in bacterial host cells which results in enhanced carbon flow for the production of ascorbic acid (ASA) intermediates. In particular, the invention relates to increasing the production of ASA intermediates in bacterial cells by enhancing the availability of gluconate resulting from the inactivation of endogenous gluconate transporter genes.
摘要:
A differential input receiver with hysteresis on both sides of the reference voltage may include a two-input, one-output differential amplifier including two input transistors having a common terminal connected together. The control terminal of each transistor may be connected to one of the inputs of the differential amplifier. The output of the differential amplifier may be connected to a set of cascaded digital inverters/buffers, and an output of each digital buffer may be connected to the control terminal of a feedback transistor. The feedback transistor may be connected in parallel across each of the input transistors so that when one input voltage increases above or decreases below the input voltage at the second input by a predetermined threshold value, the feedback transistors operate to provide positive feedback to facilitate a rapid switching action at the output.
摘要:
The present invention provides for the production of ASA from yeast capable of producing ASA from KLG. The present invention provides methods for the production of ASA as well as recombinant yeast capable of producing ASA from a carbon source.
摘要:
A cache memory device having circuitry for controlling operation of a sense amplifier for accessing an array in the data processing system including a cache memory device includes circuitry for enabling the sense amplifier when there is a hit in the array as a result of a read request and disables the sense amplifier when there is a miss in the array as a result of the read request. The cache memory device may receives an address associated with the read request, and compares the address to addresses associated with entries in the array, wherein a hit results when the received address matches at least one of the addresses associated with the entries in the array, and wherein a miss results when the received address does not match at least one of the addresses associated with the entries in the array. The address associated with the read request and the addresses associated with entries in the array are effective addresses. The cache memory device may enable the sense amp only when the array is being accessed by the read request, and only after an entire address associated with the read request has been received.
摘要:
A write driver apparatus (10) is adapted for producing a first data output signal and a second data output signal used in driving data onto a bit line pair (16, 18) associated with an electronic computer memory. The first and second data output signals represent desired data and are produced in response to a data signal, refill signal, and a data propagation clock signal. The data propagation signal is derived from system clock signals. A precharge circuit (12) associated with the write driver (10) operates in response to a precharge clock signal to precharge the bit lines (16, 18) prior to each read or write operation. The precharge clock signal is related to the data propagation signal to ensure that the bit lines (16, 18) are fully precharged prior to a read operation. A keeper circuit (14) associated with the bit lines (16, 18) also helps maintain a desired charge state on the bit lines during a read operation from memory cells (20) connected to the bit lines.
摘要:
A cache memory having a selectable cache-line replacement scheme is described. In accordance with a preferred embodiment of the present invention, the cache memory has a number of cache lines, a number of token registers, a token, and a selection circuit. The token registers are connected to each other in a ring configuration. There is an equal number of token registers and cache lines, and each of the token registers is associated with one of the cache lines. The token is utilized to indicate one of the cache lines as a candidate for replacement by the associated token register in which the token settles. The selection circuit is associated with all of the token registers. This selection circuit provides at least two methods of controlling the movement of the token within the ring of the token registers, to be selectable during runtime. Each method of token movement represents a cache-line replacement scheme.