1. Colour Fastness to Light This method is intended for accessing the resistance of the colour of textiles to the action of daylight. Principle: A specimen of the textile is exposed to the light from a Xenon arc lamp under prescribed conditions‚ along with eight dyed wool standards. The fastness is assessed by compared the fading of the textile with that of the standards. Apparatus and Materials: - Blue standards - Humidity Test Control Fabric - Light fastness test apparatus containing
Premium Textile Alkali Assessment
definition of this group has been based on the method used for detection (lactose fermentation) rather than on the tenets of systematic bacteriology. Accordingly‚ when the fermentation technique is used‚ this group is defined as all facultative anaerobic‚ gram-negative‚ non-spore-forming‚ rod-shaped bacteria that ferment lactose with gas and acid formation within 48 h at 35°C. The standard test for the coliform group may be carried out either by the multiple-tube fermentation technique or presenceabsence
Premium Drinking water Escherichia coli Bacteria
HISTOPATHOLOGY: PAPANICOLAOU SMEAR PAPANICOLAOU SMEAR screening test for cervical cancer invented by George Papanicolaou(Father of Cytopathology)when he found out that cells in the cervix change before they become cancerous. recommended starting 21 y/o to 65 y/o Speculum – instrument used in the test Importance/Clinical Siginificance: For early detection of small tumors or pre-malignant cells in the cervix that may lead to cervical cancer. Specimen: cells in the cervix; the doctor or nurse starts
Premium
of the activity. Record your observations. Part 2: Disinfecting Your Area to Use Live Organisms: Part 3: Viewing Live Organisms – Wet Mount Preparation Record your observations. Part 4: Direct Staining: Record your observations for each sample. Part 5: Indirect Staining: Examine the stained specimens and record your results. Questions: A. What are the advantages of using bleach as a disinfectant? The disadvantages? The advantages of using 70% alcohol? The disadvantages
Premium Bacteria
observations. It was hard to tell what I was looking at. There were a number of amoeba shaped cells of varying sizes. There were five darker areas circular in nature. There were also three very large‚ odd shaped areas with distinct edges. Part 4: Direct Staining: Record your observations for each sample. Slide One: There were two distinct clusters that were easily noted. All the cells were cocci. Some of the cells were huge while others were practically nonexistent. Slide Two: There were layers of cells
Premium Bacteria
contain cocci with direct staining. At direct staining plaque smear contain cocci and bacillus. Yeast with indirect staining contains cocci as well. On same picture bacteria are singled while on some pictures bacteria are in group and uneven clusters. Different type of stain plays role to differentiate the shape of bacteria. C: When we are talking about difference between direct and indirect stains‚ main importance is acidity of the dye. Dye that we are using in direct staining is basic. The colored
Premium Bacteria Microbiology
Chapter 17 Louis Pasteur’s experiment illustrated that: microbes will not grow in a nutrient broth that has been sterilized unless air is allowed to enter the vessel through an opening. Living organisms can spontaneously generate from nonliving matter. True or False? False The scientists usually given credit for disproving the theory of spontaneous generation of bacteria are: Tyndall & Pasteur Miller and Urey’s experiments attempting to recreate the prebiotic environment produced a rich mixture
Premium Bacteria Eukaryote
2.4 Mechanism Of Phosphate Solubilization: In contrary to Nitrogen soluble Phosphorous is not supplied to plants by atmosphere . Due to this reason the primary and secondary minerals and/or organic compounds are the source of P to great extent. In soil solution concentration of phosphorous is least as compare to other nutrients and ranges from0.001 to 1mg/ml Brady and Weil (2002 ).There are widely three categories of P compounds in soil: (i) compounds which are inorganic‚ (ii) organic compounds
Premium Water Bacteria Water supply
Quantitative histological analysis of the laceration site by vimentin immunohistochemical staining 4 weeks after injury. Top panels (A)‚ vimentin immunohistochemical stain; lower panel (B)‚ area of scar tissue per field. Control (C)‚ muscles treated with IGF-1 (IG)‚ muscles treated with decorin (D)‚ and muscles treated with both agents (IGϩD); *P Ͻ 0.05. FIGURE 3. Quantitative analysis of scar tissue by trichrome staining. Scar tissue containing collagen (blue) was analyzed. Top panels‚ trichrome stain;
Premium Muscle Tissues Cellular differentiation
Genetically Modified Organisms INTRODUCTION: The purpose of this lab was to identify if non-labeled food products are actually genetically modified foods. Before we could begin testing this theory we first had to gain an understanding about genetically modified organisms in general. This was rather easy because if you have been to any grocery store lately you have without a doubt seen products with labels saying "GMO-free" or even "contains only non-GMO ingredients." GMO actually stands for
Premium Polymerase chain reaction DNA Molecular biology