Heptameric structures of two alpha-hemolysin mutants imaged with in situ atomic force microscopy.

abstract：OBJECTIVES:To examine different types of restorative materials used in children as well as primary and permanent teeth enamel when affected by erosive foods. MATERIALS AND METHOD:Buttermilk, fruit yoghurt, Coca-cola, fruit juice, Filtek Z-250, Dyract Extra, Fuji II LC, and Fuji IX and tooth enamel were used. Measureme...

journal_title：Microscopy research and technique

authors： Sari ME,Erturk AG,Koyuturk AE,Bekdemir Y

更新日期：2014-01-01 00:00:00

abstract：:The importance of chloride channels for the cell is demonstrated by a number of serious human diseases that are due to mutations in chloride channels. The most well-known of these diseases is cystic fibrosis. Investigations into the mechanisms of the disease and possible treatments require the study of chloride fluxes...

journal_title：Microscopy research and technique

authors： Andersson C,Roomans GM

更新日期：2002-12-15 00:00:00

abstract：:The synaptic organization of the amphibian sympathetic ganglia was studied, especially in the last two abdominal paravertebral ganglia of the frog. These ganglia appear to form a monosynaptic relay, not containing interneurons. They consist of two systems working in parallel: the principal neurons, by far the most num...

journal_title：Microscopy research and technique

authors： Lascar G,Eugene D,Taxi J

更新日期：1996-10-01 00:00:00

abstract：:The region-specific angioarchitecture of the bovine pododerma was examined using systematic scanning electron microscopy of micro-corrosion casts of juvenile and adult bovine claws. Particular emphasis was laid on the demonstration of specialised vascular structures such as arteriovenous anastomoses. Comparing the res...

journal_title：Microscopy research and technique

authors： Hirschberg RM,Mülling CK,Budras KD

更新日期：2001-09-15 00:00:00

abstract：:The perivitelline space of mammalian oocytes changes in size and composition during preimplantation development. Often overlooked in the past, this space contains a hyaluronan-rich extracellular matrix prior to fertilization and a cortical granule envelope following release of the cortical granules at fertilization. T...

journal_title：Microscopy research and technique

authors： Talbot P,Dandekar P

更新日期：2003-07-01 00:00:00

abstract：PURPOSE:To evaluate the influence of irrigation protocols and drying procedures on the bond strength of two methacrylate-based sealers to dentin and the associated failure pattern using scanning electron microscopy (SEM). MATERIALS AND METHODS:Fifty single-rooted human teeth were prepared with an irrigation protocol u...

journal_title：Microscopy research and technique

authors： Fuzinatto RN,Farina AP,Souza MA,Miyagaki DC,Randi Ferraz CC,Cecchin D

更新日期：2017-06-01 00:00:00

abstract：:Various types of mirror lenses were developed some decades ago designed for several special tasks in microscopy. When compared with high-end glass lenses, mirror lenses lead to an extraordinary image quality because of their supraapochromatic color fidelity and their high planarity; the working distances are significa...

journal_title：Microscopy research and technique

authors： Piper J

更新日期：2010-07-01 00:00:00

abstract：:This study represents the first attempt to describe the ultra-structural and histological features of different three age-stages (young, mature, and adult) of rock pigeon Columba livia dakhlae captured from Egypt. The elongated tongue with round lingual apex carried a lingual nail rostrally on lingual tip. The current...

journal_title：Microscopy research and technique

authors： Abumandour MMA,Kandyel RM

更新日期：2020-02-01 00:00:00

abstract：:Frozen skin sections are routinely used for light microscopic immunohistochemical study of the skin basement membrane zone for two reasons: some skin basement membrane zone proteins are labile to routine chemical fixation, and skin is not amenable to vibratome sectioning. However, inherent limitations of conventional ...

journal_title：Microscopy research and technique

authors： Kan RK,Pleva CM,Backof DR,Hamilton TA,Petrali JP

更新日期：2001-08-15 00:00:00

abstract：:In conventional whole-tooth culture systems, limitation exists regarding maintenance of the vitality of the dental pulp, because this tissue is encased in rigid dentin walls that hinder nutrition supply. We here report a whole tooth-in-jaw-bone culture system of rat mandibular first molars, where transcardiac perfusio...

journal_title：Microscopy research and technique

authors： Chokechanachaisakul U,Kaneko T,Yamanaka Y,Okiji T,Suda H

更新日期：2012-10-01 00:00:00

abstract：:Historically, there has been much debate on the nature of infantile hemangiomas as either congenital malformations or benign neoplasms. Some vascular lesions that are present at birth and evidence no proliferative growth are considered to be congenital malformations; other post-natal vascular tumors pursue aggressive ...

journal_title：Microscopy research and technique

authors： Bell CD

更新日期：2003-02-01 00:00:00

abstract：:Studies in insect gustation have a long history in general physiology, particularly with work on fly labellar and tarsal sensilla and in the general field of insect-plant interactions, where work on immature Lepidoptera and chrysomelid beetles has been prominent. Much more emphasis has been placed on the physiological...

journal_title：Microscopy research and technique

authors： Mitchell BK,Itagaki H,Rivet MP

更新日期：1999-12-15 00:00:00

abstract：:Cartilage morphogenesis is a prerequisite for skeletal development and maintenance. The morphogenesis of cartilage determines the shape of bones, and joints including articular cartilage, ligaments, and tendon. This article reviews the recent advances in cartilage-derived morphogenetic proteins (CDMPs) and related bon...

journal_title：Microscopy research and technique

authors： Reddi AH

更新日期：1998-10-15 00:00:00

abstract：:Different methods have been established for the simultaneous detection of different pathogens in tissue samples, each with certain advantages and disadvantages. Chromogenic in situ hybridization combines specific molecular pathogen detection with microscopic evaluation of pathogen quantity, morphology and distribution...

journal_title：Microscopy research and technique

authors： Richter B,Fragner K,Weissenböck H

更新日期：2008-04-01 00:00:00

abstract：:This study was conducted to provide comprehensive information on the anatomical and histological features of the upper (UL) and lower (LL) lips of Rahmani sheep by gross examination, morphometric analysis in addition to Light and scanning electron microscope (SEM). Samples from normal healthy adult male sheep heads we...

journal_title：Microscopy research and technique

authors： Madkour FA,Mohammed ESI

更新日期：2020-12-01 00:00:00

abstract：:Micromass cultures represent a convenient means of studying chondrocyte physiology in the context of a tridimensional culture model. In this study, we present the first ultrastructural analysis of the distribution and organization of the extracellular components in micromasses in comparison with their cartilaginous co...

journal_title：Microscopy research and technique

authors： Battistelli M,Borzì RM,Olivotto E,Vitellozzi R,Burattini S,Facchini A,Falcieri E

更新日期：2005-08-15 00:00:00

abstract：:In order to test the effectiveness of a new advanced time-lapse microscopy imaging and image processing and analysis system, and to do quantitative and qualitative temporal analyses of in vitro peripheral nerve regeneration, long-term time-lapse imaging of cultures of mouse dorsal root ganglia (DRGs) was performed. DR...

journal_title：Microscopy research and technique

authors： Oztürk G,Erdoğan E

更新日期：2004-06-15 00:00:00

abstract：:In order to understand the interaction between dendritic cells (DCs) and helper T (Th) cells in the region exposed to antigens during pulmonary delayed-type hypersensitivity (DTH), which is considered to be mediated by Th1 cells, we immunohistochemically investigated their spatial relationship in the cellular infiltra...

journal_title：Microscopy research and technique

authors： Nishida T,Inoue K,Kawata Y,Suzuki H,Kinoshita H,Kaneda K

更新日期：2001-05-15 00:00:00

abstract：:Iris L. is one of the important genus of family Iridaceae, consist of 56 taxa naturally occurred in Turkey. The similarities and variations in the subgenus overlapping the taxonomic positions of the species in the subgenera and needs anatomical assessment especially by microscopic techniques. In this study, the taxono...

journal_title：Microscopy research and technique

authors： Kandemir N,Çelik A,Ullah F,Shah SN,Zaman W

更新日期：2019-06-01 00:00:00

abstract：:The wavelength of Raman-scattered light depends on the molecular composition of the substance. This is the first attempt to acquire Raman spectra of a mouse eyeball removed from a living mouse, in which the eyeball was preserved using the "in vivo cryotechnique" followed by freeze-drying. Eyeballs were cryofixed using...

journal_title：Microscopy research and technique

authors： Terada N,Ohno N,Saitoh S,Fujii Y,Ohguro H,Ohno S

更新日期：2007-07-01 00:00:00

abstract：:Scanning electron microscope images of complete and damaged frustules of Nitzschia marina Grun. revealed an unusual chambered structure of the valve. This structure is not present in any existing nitzschioid genus and warrants an independent generic status for this taxon, which is therefore separated into Alveus gen. ...

journal_title：Microscopy research and technique

authors： Kaczmarska I,Fryxell GA

更新日期：1996-01-01 00:00:00

abstract：:Filamentous bacteriophage has been proposed as a vehicle that can carry and deliver therapeutics into mammalian cells for disease treatment, thus a protocol for imaging phage-cell interaction is essential. Because high signal intensity is necessary to study the mechanism of interaction between filamentous bacteriophag...

journal_title：Microscopy research and technique

authors： Abbineni G,Safiejko-Mroczka B,Mao C

更新日期：2010-05-01 00:00:00

abstract：:3D surface profiling and high resolution imaging were performed to refine the Florin rings and epicuticular wax crystals of Pinus koraiensis needles. Needles were collected from four-year-old seedlings and air-dried for surface observations. Field emission scanning electron microscopy revealed that stomata were found ...

journal_title：Microscopy research and technique

authors： Kim KW,Lee ST,Bae SW,Kim PG

更新日期：2011-12-01 00:00:00

abstract：:The aim of this report was to investigate the ultrastructure and three-dimensional organization of the pleural lymphatic stomata in the adult rabbit costal pleura by electron microscopy. A computer image processing system attached to the scanning electron microscopy was used to get statistical evaluation of the dimens...

journal_title：Microscopy research and technique

authors： Li YY,Li JC

更新日期：2003-10-15 00:00:00

abstract：:We report on a novel laser source, emitting high energy (20 nanoJoule) femtosecond pulses, in a broad spectrum (250 nm). This source is easily tuned from 950 to 1200 nm, without any laser adjustment, and delivers sub-300 femtosecond pulses with a 10-nm spectral width. ...

journal_title：Microscopy research and technique

authors： Deguil N,Mottay E,Salin F,Legros P,Choquet D

更新日期：2004-01-01 00:00:00

abstract：:In recent years, the zebrafish Danio rerio has emerged as a powerful model organism for the study of vertebrate embryogenesis. Zebrafish, like other vertebrates, possess pigment cells that arise from two distinct embryonic sources: those of the dermis and epidermis originate from the neural crest, while those that com...

journal_title：Microscopy research and technique

authors： Lister JA

更新日期：2002-09-15 00:00:00

abstract：:The neurotrophins are a diverse family of peptides which activate specific tyrosine kinase-linked receptors. Over the past five decades, since the pioneering work of Levi-Montalcini and colleagues, the critical role that neurotrophins play in shaping the developing nervous system has become increasingly established. T...

journal_title：Microscopy research and technique

authors： Behrens MM,Strasser U,Lobner D,Dugan LL

更新日期：1999-05-15 00:00:00

abstract：:The human dentin-enamel junction (DEJ) is a natural junction that unites two dissimilar mineralized tissues in the human tooth: enamel and dentin. DEJ plays a critical role in maintaining structural and functional integrity of the tooth. However, its structure, chemical composition and function remain unclear and cont...

journal_title：Microscopy research and technique

authors： Wang R,Zhao D,Wang Y

更新日期：2020-11-19 00:00:00

abstract：:The aim of this study was to evaluate the effect of final irrigation protocols (17% EDTA, BioPure MTAD, SmearClear, and QMiX) on microhardness and erosion of root canal dentin. Fifty roots were sectioned transversely at the cement-enamel junction and each root was sectioned horizontally into 4-mm-thick slices. The sam...

journal_title：Microscopy research and technique

authors： Aranda-Garcia AJ,Kuga MC,Chavéz-Andrade GM,Kalatzis-Sousa NG,Hungaro Duarte MA,Faria G,Reis Só MV,Faria NB Jr

更新日期：2013-10-01 00:00:00

abstract：:Breast cancer is the most common cancer diagnosed among women. In this article, support vector machine is used to classify digital mammogram images into malignant and benign. Wiener filter is used to handle the possible quantum noise, which is more likely to occur in mammograms. Stack-based connected component method ...

journal_title：Microscopy research and technique

authors： Naveed N,Jaffar MA,Choi TS

更新日期：2011-11-01 00:00:00