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    • 2. 发明申请
    • Cell cultures from animal models of Alzheimer's disease for screening and testing drug efficacy
    • 来自阿尔茨海默病动物模型的细胞培养物用于筛选和测试药物功效
    • US20050172344A1
    • 2005-08-04
    • US10980922
    • 2004-11-03
    • Ottavio ArancioPaul MathewsStephen SchmidtRalph NixonFortunato BattagliaFabrizio TrincheseShumin Liu
    • Ottavio ArancioPaul MathewsStephen SchmidtRalph NixonFortunato BattagliaFabrizio TrincheseShumin Liu
    • A01K67/027C12N5/06G01N33/50G01N33/68
    • G01N33/502A01K2217/05A01K2227/105A01K2267/0312G01N33/5008G01N33/5014G01N33/5058G01N33/6896
    • The present invention describes a dissociated cell culture system comprising cells of the hippocampus, one of the brain areas affected by Alzheimer's Disease (AD) or amyloid beta-related diseases. This culture system comprises hippocampal neuronal and glial cells from animal models of AD, particularly, but not limited to, double transgenic mice expressing both the human APP mutation (K670N:M671L) (mAPP), and the human PS1 mutation (M146L) (mPS1), and serves as a powerful tool for the screening and testing of compounds and substances, e.g., drugs, for their ability to affect, treat, or prevent AD or β-amyloid-related diseases. The effects of a test substance on the cells in this culture system can be quantitatively assessed to determine if the test substance affects the cells biochemically and/or electrophysiologically, and/or optically, and/or immunocytochemically. The present in vitro culture system is advantageous for AD drug screening, because it is rapid and efficient. By contrast, even in the fastest animal model of AD, pathology does not start before the end of the second month. If such in vivo animal models are used, it is necessary to wait at least the two month time duration or longer to test for drug efficacy for AD treatment or prevention. At the same time the present invention provides a tool for production of amyloid-beta that can be used for electrophysiological, behavioral, and toxicological studies.
    • 本发明描述了解离的细胞培养系统,其包括海马细胞,受阿尔茨海默病(AD)或淀粉样蛋白β相关疾病影响的脑区之一。 该培养系统包括来自AD的动物模型的海马神经元和神经胶质细胞,特别但不限于表达人APP突变(K670N:M671L)(mAPP)和人PS1突变(M146L)(mP1)的双转基因小鼠 ),并且用作筛选和测试化合物和物质(例如药物)对其影响,治疗或预防AD或β-淀粉样蛋白相关疾病的能力的有力工具。 可以定量评估测试物质对该培养系统中细胞的影响,以确定测试物质是否通过生物化学和/或电生理学和/或光学和/或免疫细胞化学方法影响细胞。 目前的体外培养体系对于AD药物筛选是有利的,因为它是快速和有效的。 相比之下,即使在AD的最快动物模型中,病理学也不会在第二个月之前开始。 如果使用这样的体内动物模型,则需要等待至少两个月的持续时间或更长时间来测试AD治疗或预防的药物功效。 同时,本发明提供了可用于电生理,行为和毒理学研究的淀粉样蛋白-β生产工具。
    • 9. 发明授权
    • Multi frequency photoelectric detection system
    • 多频光电检测系统
    • US06377167B1
    • 2002-04-23
    • US09674215
    • 2001-05-01
    • Scott JudsPaul MathewsRobert I Lewis
    • Scott JudsPaul MathewsRobert I Lewis
    • B60Q100
    • G01S17/936G01S7/4811G01S17/36G01S17/87G01S2013/9332
    • Collision avoidance apparatus (28, 30) is mounted on a host vehicle (20) to detect the presence of an adjacent vehicle (22) within a monitored zone (24, 26). A sensor module (30) includes a plurality of discrete sensor systems for monitoring unique portions of the monitored zone (24, 26), each of which comprises an emitter (52) emitting a fixed frequency modulated beam (58) of light energy (54) with a predetermined burst length into its unique portion of the monitored zone (24, 26), and a receiver (68) having a field of view (62), substantially aligned with emitted beam (58) to produce a fixed optical overlap area (A), and for sensing light energy (66) and generating a received signal. A frequency generator (48) produces two or more predetermined different fixed frequencies for use by the emitter (52) to emit beams (58) at each frequency. A phase shifter (70) produces a phase shifted reference signal with a different predetermined phase delay relationship to each fixed frequency. A mixer (72) mixes each received signal and each phase shifted reference signal to produce demodulation signals from for each frequency. A processor (40) receives and processes accoupled logic level detection signals generated by a limiter amplifier (76) for each discrete sensor system at each of the fixed frequencies to determine the presence of a vehicle (22) in the monitored zone (24, 26). The fixed frequency and the predetermined phase delay are chosen to produce a null received signal resulting from reflections of the emitted beam from uniformly distributed atmospheric backscatter within the optical overlap area (A).
    • 碰撞避免装置(28,30)安装在主车辆(20)上以检测在监视区域(24,26)内的相邻车辆(22)的存在。 传感器模块(30)包括多个离散传感器系统,用于监测所监视区域(24,26)的独特部分,每个部分包括发射光(58)的发射器(52) )具有预定的突发长度进入其被监视区域(24,26)的独特部分,以及具有与发射波束(58)基本对准的视场(62)的接收器(68),以产生固定的光学重叠区域 (A),并且用于感测光能(66)并产生接收信号。 频率发生器(48)产生两个或更多个预定的不同固定频率,供发射器(52)在每个频率下发射波束(58)。 移相器(70)产生具有与每个固定频率不同的预定相位延迟关系的相移参考信号。 混合器(72)将每个接收的信号和每个相移的参考信号混合以产生针对每个频率的解调信号。 处理器(40)在每个固定频率处接收并处理由限幅放大器(76)产生的用于每个离散传感器系统的耦合逻辑电平检测信号,以确定车辆(22)在被监视区域(24,26)中的存在 )。 选择固定频率和预定相位延迟以产生由光重叠区域(A)内均匀分布的大气背散射的发射光束的反射产生的零接收信号。
    • 10. 发明授权
    • Method of determining optimal detection beam locations using reflective
feature mapping
    • 使用反射特征映射确定最佳检测光束位置的方法
    • US5675326A
    • 1997-10-07
    • US485099
    • 1995-06-07
    • Scott JudsPaul Mathews
    • Scott JudsPaul Mathews
    • G01S17/93G08G1/16
    • G01S17/936
    • A method of defining a sensing system for detecting the presence of an object in a volume of space under surveillance by determining the optimal placement of a plurality of energy beams which are projected into the volume which comprises the steps of (A) placing the object at a preselected position within the space; (B) directing a plurality of sample beams of energy, which have a predetermined orientation, from a source onto the object; (C) detecting the reflections of the sample beam energy from points on the object by energy detectors; (D) recording the preselected position of the object, the predetermined orientation of sample beams, and the detection status of the energy detectors; (E) changing the equatorial and azimuthal angles of each of the beams and repeating steps (B), (C) and (D); (F) moving the source of the sample beams relative to the object; (G) repeating steps (B) through (F) to produce spatial maps of the locations at which the object is positioned when each of the energy detectors detect reflected sample beam energy; and (H) using the spatial maps so produced to select the optimal orientation of a set of energy beams which will maximize the detection probability of an object located in the volume of space under surveillance. This method is repeated for a plurality of different vehicles.
    • 一种定义感测系统的方法,用于通过确定投影到体积中的多个能量束的最佳布置来检测被监视的空间体内物体的存在,其包括以下步骤:(A)将物体放置在 空间内的预选位置; (B)将具有预定取向的多个能量样本光束从源引导到物体上; (C)通过能量检测器检测物体上的点的样品束能量的反射; (D)记录物体的预选位置,样本光束的预定取向以及能量检测器的检测状态; (E)改变每个光束的赤道和方位角,重复步骤(B),(C)和(D); (F)相对于物体移动样品光束的源; (G)重复步骤(B)至(F)以产生当每个能量检测器检测到反射的样品束能量时物体被放置的位置的空间图; 和(H)使用如此产生的空间图来选择一组能量束的最佳取向,这将最大化位于监视下的空间体积中的物体的检测概率。 对于多个不同的车辆重复该方法。