Showing papers in "Micron in 2002"

TL;DR: This review will summarizes the main aspects of ultraviolet radiation on plants at physiological and biochemical level, with particular emphasis on protective structures and mechanisms.

TL;DR: This paper is focused on the structural and biochemical changes of the cell wall and plastids after gamma and/or UV-B irradiation, being an environmental factor which causes damage to both humans and plant cells.

TL;DR: The novel combination of single molecule imaging and force spectroscopy which allows biomolecules to be imaged, and inter- and intramolecular forces to be measured, is reviewed.

TL;DR: It is now indisputable that collagen interacts and forms functional entities with several other macromolecules of the extracellual matrix, as their structure and their functional role become known.

TL;DR: A novel symmetrization method for solving the transport of intensity equation (TIE) using fast Fourier transforms for situations where the input images may or may not exhibit spatial periodicity.

TL;DR: The arrangement of antennal sensilla was studied in female and male ground beetles Bembidion properans Steph.

TL;DR: Current knowledge about the pathomorphology and cell biology of the ionizing radiation response of the GI tract with a focus on the small intestine is summarized.

TL;DR: A new in vivo electroporation method to deliver genes into retinal ganglion cells (RGCs) using green fluorescent protein (GFP) gene and TUNEL may be a useful tool for the delivery of genes into RGCs.

TL;DR: This is a review of the diverse types of biological thermoreceptors, their structure and function, and how electron microscopy has been instrumental in determining their ultrastructure.

TL;DR: The ability to form an S-layer appears to be useful as a supportive morphological marker for species classification, with the p6 lattice symmetry appearing to be the most common in cyanobacteria, having been found in 41 out of the 60 S-layers observed.

TL;DR: An ultrastructural description of all the cell types presently known that make up the much studied larval stage of this medically important trematode is brought together.

TL;DR: A combination of transmission electron tomography and computer modelling has been used to determine the three-dimensional structure of the photonic crystals found in the wing-scales of the Kaiser-I-Hind butterfly.

TL;DR: The hypothesis that renal irradiation is associated with a chronic and persistent oxidative stress is supported by an indirect immunohistochemical approach using a monoclonal antibody specific for 8-hydroxy-2'-deoxyguanosine (8-OHdG), one of the most commonly used markers of DNA oxidation.

TL;DR: The role of the blind prediction contests, such as the Critical Assessment of techniques for protein Structure Prediction (CASP), will be briefly discussed and examples of their applications given.

TL;DR: Several representative examples are given of the successful application of negative staining across the holes of holey carbon support films using 5% (w/v) ammonium molybdate solution containing trehalose.

TL;DR: Light microscopy but also low temperature scanning electron microscopy revealed details of the colonisation process of the nematophagous fungus Verticillium chlamydosporium in barley roots, finding features that may indicate induction of plant defence reactions in late stages of root colonisation by the fungus.

TL;DR: The in vitro system presented here provides a way to rapidly monitor at the structural/TEM level other compounds for their effects on amyloid beta peptide fibrillogenesis (and on preformed fibril disassembly) in parallel with in vitro biochemical studies and in vivo studies using animal models of Alzheimer's disease.

TL;DR: It is suggested that metabolic shortfalls in the UV-sensitive cells of the butterfly eyes result in cellular shut-down, but that in the cricket receptors UV-induced changes of the membrane lipids dominate, leading to membrane instability without concomittant cell death.

TL;DR: Experimental data, coupled with theoretical dosimetry calculations, indicate that bystander effects play an important role in the killing of unlabeled cells when nonuniform distributions of DNA-incorporated (125)I are present.

TL;DR: The morphological and biochemical data providing strong evidence about the existence and function of caveolae in rat peritoneal macrophages are summarized, supporting the idea that the expression of the approximately 29 kDa (caveolin-related) protein is insufficient for Caveolae formation in resident cells, it can function as a modified, macrophage-specific caveolin-2 isoform.

TL;DR: The data strongly indicate an intracisternal transport of enveloped virus particles from the budding site to the packaging site, and Glycoprotein K is discussed to likely play a role in the intrac isternal transportation of virions.

TL;DR: Scanning electron microscope observation of the microstructure of Hydrophilidae (an insect) cuticle showed several unique plies and structural characteristics, which may provide available information to the design of advanced composites.

TL;DR: Material seems to be lost during overwintering of Gyas as electron lucent "empty" layers appear in spherites in March, therefore it could be involved in metabolic processes in adult Gyas.

TL;DR: The F MRFamide-like cells were present in the midgut of these insects during or close to the period that they were eating, which indicates that the FMRFamide may be involved in the control of the digestive process.

TL;DR: The results indicate that the iron-rich granules of these honeybees are formed by accumulation of ferritin and its degraded forms together with elements present inside the rough endoplasmic reticulum, such as phosphorus, calcium and magnesium.

TL;DR: The results indicate that the interface between the components of the chromatin domain and the interchromatin space is a critical site of caspase activity in apoptosis, and precedes other events such as internucleosomal DNA degradation.

TL;DR: The difference in structural fluctuation depending on the metal and the beam intensity, and the peculiar coalescence of In nanoparticles are discussed qualitatively.

TL;DR: The results show that damaged cells occurred in both retina and lamina ganglionaris, but that the retinal cells were affected to a greater extent, and show that an exposure to light of wavelengths of 254 and 312 nm may be injurious to the visual system of invertebrates.

TL;DR: The behavior of the native RTH1 and RtH2 during reassociation in the presence of 100mM calcium and magnesium chloride corresponds to the reported common oligomerization characteristics of KLH1/HtH 1 and KLH2/HTH2, respectively.

TL;DR: Results indicate that pilocarpine is effective in relieving the signs and symptoms of postradiation xerostomia.