Light microscopy

Xem 1-20 trên 27 kết quả Light microscopy
  • Lecture Microbiology - Chapter 3: Microscopy and staining. This chapter presents the following content: Metric units, light properties (λ), light properties (RP), light travel, compound light microscopy, fluorescence microscopy,...

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  • Science often grows exponentially from certain key insights, and the insight Marvin Minsky had in 1955 is no exception. While working as a postdoctoral fellow at HarvardUniversity, Minsky sought a method to reduce the high level of light scatter that made high contrast imag‐ ing of thick specimens impossible by standard light microscopy.

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  • It is no surprise to see the micro-Raman Group at Lille come forth with this timely publication to document the present state of Raman microscopy. A quarter century has passed since the early attempts at Raman microsampling when the field began to merge with, and complement, other microprobe techniques. In the late 1960s to the early '70s, it was mainly the electron beam methods that opened up the microscopic domain to instrumental analysis, aside from classical light microscopy.

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Long-term cyclical in vivo loading increases cartilage proteoglycan content in a spatially specific manner: an infrared microspectroscopic imaging and polarized light microscopy study...

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  • (BQ) Part 1 book "Textbook of human histology (with colour atlas and practical guide) presents the following contents: Light microscopy and tissue preparation, cell structure, epithelia, glands, general connective tissue, cartilage, bone, muscular tissue, lymphatics and lymphoid tissue, the blood and the mononuclear phagocyte system, nervous system.

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  • An effective separation method of very pure binder fraction to assess radiocarbon dating is proposed in the present contribution. The elimination of contaminant error sources and the suitable selection of mortar samples enable the reliable dating. Petrographic analysis under polarizing light microscopy is used to identify different mineralogical phases of mortar samples, aggregate nature, and the limestone fragment remains.

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  • Scientists and engineers for decades searched to utilize magnesium, known of its low density, for light-weighting in many industrial sectors. This book provides a broad review of recent global developments in theory and practice of modern magnesium alloys. It covers fundamental aspects of alloy strengthening, recrystallization, details of microstructure and a unique role of grain refinement.

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  • Variation in the morphology of the adult male reproductive system among different groups of Hymenoptera offer characteristics that help studies of behavior and the evolutionary history of this group. The objective of this study was to describe the adult male reproductive system of the wasp Polistes versicolor versicolor Olivier (Vespidae: Polistini). The reproductive systems were dissected, fixed and embedded for light microscopy. In P. v. versicolor, the reproductive system includes a pair of testes, each one with three fusiform follicles.

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  • In 1665, a book was published that inaugurated the use of the microscope to investigate the natural world. The author was Robert Hooke, a talented artist, architect, and amateur scientist. Hooke wrote Micrographia: Or Some Physiological Descriptions of Minute Bodies Made by Magnifying Glasses with Observations and Inquiries Thereupon, at the behest of the newly chartered Royal Society in London, for whom he was working as curator of scientific experiments. In Micrographia, he presented the first detailed observations of everyday objects made with his self-constructed light microscope....

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  • (BQ) Part 1 book "diFiore's atlas of histology - With functional correlations" presents the following contents: Histologic methods, light and transmission electron microscopy, cells and the cell cycle, epithelial tissue, epithelial tissue, hematopoietic tissue,...

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Teager-Kaiser Energy and Higher-Order Operators in White-Light Interference Microscopy for Surface Shape Measurement

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  • Microscopes have always been one of the essential instruments for research in the biomedical field. Radiation-based microscopes (such as the light microscope and the electron microscope) have become trustworthy companions in the laboratory and have contributed greatly to our scientific knowledge. However, although digital techniques in recent years have still enhanced their performance, the limits of their inherent capabilities have been progressively reached.

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  • I am pleased to have had the opportunity to present an overview of red cell membranes in normal and disease states with my background of nearly 30 years in this area of research. I believe that this kind of publication on red cell membrane is a very timely summary of all the results obtained by the tremendous efforts worldwide by all of the scientists in this field during the past few decades. As reviewed in Chapter 1, the general concepts of red cell membrane abnormalities and the categories of each red cell membrane disorder are now well established.

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  • Microscopy is a servant of all the sciences, and the microscopic examination of minerals is an important technique which should be mastered by all students of geology early in their careers. Advanced modern textbooks on both optics and mineralogy are available, and our intention is not that this new textbook should replace these but that it should serve as an introductory text or a first stepping-stone to the study of optical mineralogy.

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  • Microscopic and light spectroscopic investigations on the supramolecular architecture of bacterial photosynthetic membranes have revealed the pho-tosynthetic protein complexes to be arranged in a densely packed energy-transducing network.

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  • The organization of Arabidopsis thaliana photosystem II (PSII) and its associated light-harvesting antenna (LHCII) was studied in isolated PSII–LHCII supercomplexes and native membrane-bound crystals by transmission electron microscopy and image analysis. Over 4000 single-particle projections of PSII– LHCII supercomplexes were analyzed. In comparison to spinach supercomplexes [Boekema, E.J., van Roon, H., van Breemen, J.F.L. & Dekker, J.P. (1999) Eur. J. Biochem.

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  • Tuyển tập các báo cáo nghiên cứu khoa học quốc tế về bệnh thú y đề tài: Site adaptations of Acanthogyrus (Acanthosentis) tilapiae: Observations through light and scanning electron microscopy

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  • Tanzania ranks 15th among the world’s 22 countries with the largest tuberculosis burden and tuberculosis has continued to be among the major public health problems in the country. Limited data, especially in patients co infected with HIV, are available to predict the duration of time required for a smear positive pulmonary tuberculosis patient to achieve sputum conversion after starting effective treatment.

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  • The photosynthetic protein complexes in plants are located in the chloroplast thylakoid membranes. These membranes have an ultrastructure that consists of tightly stackedÔgranaÕ regions interconnectedbyunstackedmembrane regions.The structure of isolated granamembranes has been studiedhere by cryo-electron microscopy. The data reveals an unusual arrangement of the photosynthetic protein complexes, staggered over two tightly stacked planes.

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  • Despite its significant role in bone adaptation, its detailed structure remains elusive: light microscopy can barely detect the entire jungle at the best resolution, let alone individual fibers in the matrix surrounding the cell. Wang’s team relies on a bioimaging approach called Fluorescence recovery After Photobleaching to measure how fast a small fluorescent dye and a relatively large protein move through the pericellular matrix. The researchers record differential speeds of the large and small molecules.

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