نتایج جستجو برای: روش lamp
تعداد نتایج: 379456 فیلتر نتایج به سال:
Pigment disorders1,3 Hypopigmentation or depigmentation. Lesions demonstrate increased sharpness of borders under Wood lamp examination and fluoresce bright blue-white owing to the increased amount of dermal collagen illuminated. This results from decreased or absent intervening melanin. Vitiligo: patches, varying in location and extent. Tuberous sclerosis: patches; characteristic shapes are la...
James Thomson envisaged a lamp which would be turned on for 1 minute, off for 1/2 minute, on for 1/4 minute, etc. ad infinitum. He asked whether the lamp would be on or off at the end of 2 minutes. Use of “internal set theory” (a version of nonstandard analysis), developed by Edward Nelson, shows Thomson’s lamp is chimerical; its copy within set theory yields a contradiction. The demonstration ...
BACKGROUND Buruli ulcer (BU) caused by Mycobacterium ulcerans (M. ulcerans) has emerged as an important public health problem in several rural communities in sub-Saharan Africa. Early diagnosis and prompt treatment are important in preventing disfiguring complications associated with late stages of the disease progression. Presently there is no simple and rapid test that is appropriate for earl...
Here we describe a method for the detection of Clostridium difficile from stool using a novel low-complexity and rapid extraction process called Heat Elution (HE). The HE method is two-step and takes just 10 minutes, no specialist instruments are required and there is minimal hands-on time. A test method using HE was developed in conjunction with Loop-mediated Isothermal Amplification (LAMP) co...
BACKGROUND Early and effective detection of Mycobacterium tuberculosis (MTB), particularly in smear-negative tuberculosis (TB), is a priority for global TB control. Loop-mediated isothermal amplification with a procedure for ultra rapid DNA extraction (PURE-LAMP) can detect TB in sputum samples rapidly and with high sensitivity and specificity. However, the PURE-LAMP test has not been effective...
BACKGROUND Despite the advent of novel diagnostic techniques, smear microscopy remains as the most practical test available in resource-limited settings for tuberculosis (TB) diagnosis. Due to the low sensitivity of microscopy and the long time required for culture, feasible and accessible rapid diagnostic methods are urgently needed. Loop-mediated Isothermal Amplification (LAMP) is a promising...
successful disease management requires a rapid and sensitive diagnosis method that can recognize early infection even before the manifestation of its clinical signs. the only available field diagnostic tests for foot-and-mouth disease (fmd) are lateral flow devices, commonly known as chromatographic strips. low sensitivity and inability to detect fmd virus (fmdv) at the serotype level are limit...
The sagittal distance of ocular structures can be obtained with a slit-lamp microscope providing the movement of the slit-lamp can be measured. A simple device consisting of a pointer attached by a spring clip to the axle of a Haag-Streit 900 slit-lamp is described. The pointer rides over a scale which slides with the slit-lamp. Comparisons of anterior chamber depth and lens thickness showed a ...
This paper proposes the effective compensation method for the IR lamp deterioration in NDIR capnograph system. The newly designed optical chamber with two IR lamps and an electronic hardware for controlling lamp intensity have been implemented. After applying the proposed optical chamber and reference lamp control circuit to the NDIR type capnograph system, it is identified that the proposed me...
مقدمه: مولتیپل اسکلروزیس یک بیماری التهابی سیستم عصبی مرکزی است. این بیماری ماهیت خود ایمن داشته و هنوز عامل ایجادکننده آن دقیقاً مشخص نیست و از عواملی چون ژنتیک، منطقه جغرافیایی و ویروس نامبرده میشود. از جمله عوامل ویروسی که شاید در ایجاد این بیماری نقش داشته باشد، ویروس هرپس سیمپلکس تیپ 1و2 است. هدف این مطالعه، استفاده از روش جدید تکثیر هم دما به واسطه حلقه ( lamp ) جهت بررسی آلودگی ویروس هرپ...
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