Gotowe bibliografie tematyczne / Stone – microscopy

Gotowa bibliografia na temat „Stone – microscopy”

Autor: Grafiati
Data publikacji: 26 lipca 2024
Data aktualizacji: 27 lipca 2024

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Artykuły w czasopismach na temat "Stone – microscopy"

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Rao, Sudeep M., C. Jeffrey Brinker i Timothy J. Ross. "Environmental microscopy in stone conservation". Scanning 18, nr 7 (październik 1996): 508–14. http://dx.doi.org/10.1002/sca.1996.4950180707.

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Kim, K. M. "Electron microscopic pathology of urinary stones". Proceedings, annual meeting, Electron Microscopy Society of America 45 (sierpień 1987): 674–75. http://dx.doi.org/10.1017/s0424820100127797.

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Urolithiasis occurs commonly. With modern technology, stones can be easily removed. However, the major threat of urolithiasis is in its high recurrence rate. Many recurrences can be medically prevented. For medical prevention, proper knowledge of stone components is essential.Urinary stones have been analyzed mainly by x-ray diffraction, infrared spectroscopy and chemical analysis. Each method suffers from limitations in sensitivity and reliability. Primarily because of their inability to detect minor components of the stones, two or more methods are frequently combined. Recently it has become apparent that scanning electron microscopy (SEM), especially when combined with x-ray analysis (XA), has a sensivity in stone analysis exceeding other conventional methods.SEM of urinary stones did not gain popularity mainly due to the perceived high cost, the difficulty of sectioning stones, and the variability of crystal morphology.
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Spathis, Panayotis K., Maria Mavrommati, Eirini Gkrava, Vasilios Tsiridis, Sotiris P. Evgenidis, Ioannis Karapanagiotis, Vasilios Melfos i Thodoris D. Karapantsios. "Characterization of Natural Stone from the Archaeological Site of Pella, Macedonia, Northern Greece". Heritage 4, nr 4 (15.12.2021): 4665–77. http://dx.doi.org/10.3390/heritage4040257.

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The goal of the study was to characterize the limestone that was used extensively in the ancient city of Pella (Macedonia, Greece), the birthplace of Alexander the Great. An on-site examination of the building material was carried out to record the types of damage and to select sampling areas. A variation in the nature of the stone and the degree of deterioration, even between the stones that comprise a specific monument structure, was observed, with water absorption and biological colonization being the main factors resulting in the deterioration of the stone. A comprehensive microanalysis and testing scheme was conducted to fully characterize the mineralogical, chemical, mechanical and thermal properties of the stones collected from various areas of the archaeological site. Optical microscopy, XRD and SEM–EDX were used to investigate the chemical composition and the structure of the stone samples. Finally, other properties, such as porosity, specific gravity and water absorption, were measured. Surface alterations, material degradation and biological deterioration were observed in most samples. The results obtained using XRD showed that the dominant mineral phase of the limestone is calcite, with quartz and clay minerals also detected in traces. The microscopic examination of the samples showed that the main natural stone at the archaeological site is a marly limestone. Thermographical measurements showed that the decay of the stones due to ambient temperature variation and corresponding contraction/expansion phenomena may be relatively limited, as the stone exhibited a low thermal diffusivity. Moreover, high porosity values (12.06–21.09%) and low compressive strength (11.3–27.7 MPa) were recorded, indicating the vulnerability of the stone and the need to take conservation measures.
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Hassan A.A. Al-Jumaily, Omar A.M. Mohammad i Anwaar S.J. Al-Maadhidi. "The role of SEM and infrared spectroscopy techniques in identification of the mineralogy of kidney stones: case study from Fallujah City, Western Iraq". Tikrit Journal of Pure Science 25, nr 4 (2.08.2020): 44–52. http://dx.doi.org/10.25130/tjps.v25i4.270.

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The current study is concerned with the mineralogical aspects of kidney stones from urolithiasis patients of different ages and genders in Fallujah city hospital. The following techniques were implemented as follows; X - ray diffraction (XRD) used to recognize the mineral components of the studied kidney stones, Infrared Spectroscopy (IR) to discover the type of chemical compounds of the studied kidney stones, Scanning Electron Microscopy (SEM) with Energy Dispersive X-Ray Analysis (EDX) to determine the mineralogy and the various chemical components in the kidney stones. The results show that the kidney stones are composed of five mineral groups and these are; mixed stone group, calcium oxalate, phosphate stone, uric acid, and cholesten. The cholesten has been diagnosed for the first time in Iraq, which might be linked to the diet type that includes high levels of cholesterol. Furthermore, the most common mineral group in the study area is the mixed stone which occurs in males more than females for the ages of 40 to 50 years old
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OUYANG, JIAN-MING, MU-HUA WAN i NA ZHOU. "STUDY OF NANOPARTICLES IN URINES BY TRANSMISSION ELECTRON MICROSCOPY". International Journal of Nanoscience 05, nr 06 (grudzień 2006): 769–73. http://dx.doi.org/10.1142/s0219581x06005133.

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The number, size and distribution of nanoparticles in urines of healthy people and stone patients were investigated by transmission electron microscopy (TEM). The results showed that the number of nanoparticles in healthy urines are more than that in lithogenic urines. The size of most nanoparticles in healthy urines ranges from 100 to 350 nm. However, the size of nanoparticles in patient urines changes from 100 nm to 1000 nm and more. A dynamic model about the formation of urinary stones was established. From this model, the nanoparticles in normal urines are stable, yet those in patient urines would easily aggregate to larger-size crystals and finally urinary stones formed. The results in this paper provide a new thought for preventing formation and recurrence of urinary stones.
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Zhang, Guang Na, Zhi Yue Xia, Jian Ming Ouyang i Li Kuan. "Study on Nano- and Microcrystallites in Urines of Uric Acid Stone Patients". Advanced Materials Research 655-657 (styczeń 2013): 1927–30. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.1927.

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The presence of crystallites in urine is closely related to stones formation. In this article, the components, morphology of nano- and micro-crystallites in urines of 20 uric acid (UA) stone formers as well as their relationship with the formation of UAstones were comparatively studied using X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The main constituent of urinary crystallites was uric acid. Their particle size distribution was highly uneven, ranging from several nanometers to several tens of micrometers, and obvious aggregation was observed. These results showed that there was close relationship among stone components, urinary crystallites composition and urine pH.
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Gervasoni, Jacopo, Aniello Primiano, Pietro Manuel Ferraro, Andrea Urbani, Giovanni Gambaro i Silvia Persichilli. "Improvement of Urinary Stones Analysis Combining Morphological Analysis and Infrared Spectroscopy". Journal of Chemistry 2018 (2018): 1–7. http://dx.doi.org/10.1155/2018/4621256.

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Daudon et al. have developed a complex morphoconstitutional classification of renal stone in six different morphological types and several subtypes. According to this classification, a precise correspondence exists between causes of renal stones and subtypes with a great clinical relevance and can be considering a sort of shortcut for the metabolic diagnosis in renal stone patients. Now the diagnosis of causes of renal stones generally requires repeated biochemical investigations on urine and blood samples and usually remains presumptive. We analyzed 150 urinary stones both by stereoscopic microscopy and Fourier transform infrared spectroscopy. The comparison of 150 stones did not reveal any disagreement. We have only 20 partial agreement, and clinicians agreed that the imprecise information obtained with morphological analysis alone would have missed an important clinical finding only in 3 cases. In conclusion, in our opinion, the analysis of urinary stone must combine two different analytical techniques: morphological analysis by stereomicroscope and biochemical analysis with the FT-IR.
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Carmichael, Stephen W. "Microscopy Reveals That It’s Written in Stone!" Microscopy Today 23, nr 2 (marzec 2015): 8–11. http://dx.doi.org/10.1017/s1551929514001345.

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Wentrup-Byrne, E., L. Rintoul, J. L. Smith i P. M. Fredericks. "Comparison of Vibrational Spectroscopic Techniques for the Characterization of Human Gallstones". Applied Spectroscopy 49, nr 7 (lipiec 1995): 1028–36. http://dx.doi.org/10.1366/0003702953964813.

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A suite of human gallstones was investigated by vibrational spectroscopic techniques with a view to developing an effective characterization procedure. Using infrared microscopy, microspectroscopic mapping, infrared photoacoustic spectroscopy (PAS), and FT-Raman spectroscopy, we have examined both the chemical composition and the microstructure of the different categories of human gallstones. We show how infrared microscopy can be used to determine the chemical identity of particular microstructural features of a stone. Infrared mapping produces functional group maps of the surface of a gallstone and shows the actual distribution of the different chemical components. Good fluorescence-free FT-Raman spectra were obtained from all categories of stones except black stones, which gave a fluorescence background with no observable Raman spectrum. Of the vibrational techniques studied, PAS proved the most suited to the spectroscopic categorization of gallstones because data for the whole stone can be obtained with minimal sample preparation. The advantages and disadvantages of each technique are discussed.
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Khan, Saeed R. "Urinary stone analysis". Proceedings, annual meeting, Electron Microscopy Society of America 46 (1988): 86–87. http://dx.doi.org/10.1017/s0424820100102511.

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Since crystalline composition of a urinary stone is an expression of urinary chemical conditions prevalent at the time of crystal nucleation and growth, a careful analysis of the stone and identification of constituent crystals is necessary for an understanding of the disease and the initiation of a proper medical regimen for the prevention of stone recurrence. Of the number of methods available, analytical electron microscopic techniques including scanning (SEM) and transmission electron microscopy (TEM), x-ray microanalysis (XRMA), and electron diffraction (ED) are gaining in popularity.For SEM, the dried stone is fractured through the middle and small pieces representing different areas of the stone are mounted on a carbon planchet or an aluminum stub using a double sticky tape or graphite paint. The specimen is then sputter coated with silver, gold or gold/palladium; or coated with carbon. For morphological examination alone, the specimen can be coated with any of the available conducting substances, but for XRMA the specimen should either be examined uncoated or be coated with carbon, or with a substance whose peaks in the XRMA spectrum do not interfere with the peaks of the elements of interest.
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Rozprawy doktorskie na temat "Stone – microscopy"

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Raneri, Simona. "Complex Pore Geometries in Natural Building Stones: an experimental and theoretical approach for the modeling of porosity changes in natural, degraded and treated calcarenites". Doctoral thesis, Università di Catania, 2016. http://hdl.handle.net/10761/4021.

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Calcarenites are the most widely used natural stones in Sicily as building materials. The comprehension of the degradation style of these natural building stone is of great interest in order to preserve the ancient masonry, especially in the case of relevant Cultural Heritages. A large number of Sicilian monuments are included in UNESCO Heritage List as their special cultural or physical significance. Considering the cultural importance of these ones, smart solutions are required in the perspective of their conservation. In the framework of restoration actions, the complete knowledge of the internal structure of building stones is fundamental in order to estimate durability and prevent degradation processes. Salt growth is a significant cause of damage for natural stones. The effects of the salt weathering are, in addition to the properties of the salt itself and the climatic conditions, strongly related to the structural and textural features of materials. For this reason, an integrate study on petrographic, physical, mechanical and porosimetric proprieties changes due to salts crystallization could be useful to highlight correlation among textural, structural and engineering parameters. Moreover, one of the main problems in conservation field is the use of suitable consolidant and protective treatments able to preserve the masonry, being compatible with the stone substrate and not affecting its aesthetical proprieties. There are numerous tests able to verify the efficiency of consolidant or protective products, mainly devoted to verify their ability to not modify the appearance of stone and its physical proprieties, especially against water; however, particularly in the case of consolidant, one of the most important feature is related to its penetration depth, often difficult to evaluate by using the standard test routines. For aforementioned, this research work is devoted to apply a multi-methodological approach for characterizing and modeling pore structure modifications due to weathering processes in a coarse grained Sicilian calcarenite used as building and replace stones in Sicilian Cultural Heritages (Sabucina Stone), also through fractal models and innovative and non invasive methods. The obtained data on Sabucina stone have been employed for planning conservative treatments devoted to coarse grained calcarenite substrates. Therefore, innovative nanostructured and hybrid consolidant and protective products have been experimented and the results of efficiency tests along with the determination of surface and sub-surface changes due to the treatments are proposed. In conclusion, the applied theoretical and empirical approach has allowed to: highlight the potential of classical and innovative complementary methods in quantifying the structural changes in porous materials due to degradation processes and conservative treatments, explain how they help to facilitate the understanding of stone weathering and validate the use of geometrical models in describing complex pore systems.
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Lee, Miin-Huey. "Microscopic, physiological and molecular studies of pathogenesis in Monilinia fructicola, the brown rot pathogen for stone fruits /". For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2005. http://uclibs.org/PID/11984.

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Loffler, German. "Microscopic analysis utilized in the identification of cutting, scraping and whittling activities on flake tools from the Qwu?gwes (45TN240), Hartstene, and Sunken Village (35MU4) sites in the central northwest coast of North America". Online access for everyone, 2007. http://www.dissertations.wsu.edu/Thesis/Fall2007/g_loffler_112707.pdf.

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Bioud, Fatma Zohra. "Microscopie de mélange à quatre ondes résolue en polarisation pour sonder l’ordre moléculaire dans les milieux biologiques". Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4380.

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Nous avons développé une méthodologie basée sur phénomène de mélange à quatre ondre polarimétrique « Four wave Mixing FWM » et son équivalen résonant la diffusion Raman cohérente anti-Stokes (CARS, Coherent Anti-Stokes Raman Scattering) polarimétrique et réalisé des mesures sur des systèmes cristallins, simili biologiques : les membranes cellulaires connues sous le nom de « Multilamellar Vesicles MLV » et des échantillons de biologiques : la myeline, et ce, en variant les polarisations des lasers excitateurs, Pompe et Stokes. Le signal anti-Stokes émis est ensuite analysé afin d’en extraire les ordres 2 et 4 de la fonction de distribution angulaire des molécules actives constituant l’échantillon. Pour cela, plusieurs approches sont explorées telles que des algorithmes d’optimisation ou par décomposition en série de fourrier du signal polarimétrique. Ces multiples approches en traitement du signal permettent d’obtenir de manière rapide les coefficients des fonctions de distribution angulaire recherchées, et ainsi d’avoir des informations sur la symétrie des échantillons imagés, allant jusqu’à l’observation d’une symétrie d’ordre 4. La capacité de la microscopie non linéaire résolue en polarisation à sonder des ordres moléculaires est clairement démontrée et ainsi son intérêt dans l’étude de la relation entre la structure et la fonction de systèmes biologiques
The capacity to quantify molecular orientational order in tissues is of a great interest since pathologies (skin lesion, neurodegenerative diseases, etc) can induce strong modifications in proteins’ organization. While numerous studies have been undertaken using polarization resolved second order nonlinear optical microscopy which is only specific to non-centrosymmetric organizations, higher order effects have been less explored. Four-wave mixing (FWM) microscopy and its resonant counterpart coherent anti-Stokes Raman scattering (CARS) can be of a great utility as label free diagnosis tools benefiting from less constraining symmetry rules. In this work, we implement incident polarizations tuning in FWM and CARS microscopy to probe molecular order, using a generic method to read-out symmetry information.Fourier analysis of the polarization-resolved FWM/CARS signal processed with an analytical model provides a fast and direct determination of the symmetry orders of the distribution function of the probed molecules. This method does not require a priori knowledge of the organization structure and provides quantitatively its second and fourth order symmetries. We applied this technique on different systems, from crystalline to less organized (multilamellar vesicles and proteins aggregates). We show that this new approach brings additional and more refined information on supra-molecular structures in complex media
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Berthonneau, Jérémie. "Le rôle des minéraux argileux dans la dégradation de la pierre : application à la conservation de la "Pierre du Midi" en termes de durabilité et compatibilité des matériaux en oeuvre". Phd thesis, Aix-Marseille Université, 2013. http://tel.archives-ouvertes.fr/tel-00958572.

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De par l'étendue de leur répartition géographique et la facilité de leur extraction, les molasses d'âge miocène du bassin rhodanien ont été largement exploitées par l'homme comme pierre de construction depuis le début de l'ère chrétienne. Le patrimoine bâti provençal érigé à l'aide de ce matériau, connu sous le nom de " Pierre du Midi ", et exposé aux intempéries depuis plus de cinq cents ans présente cependant un certain nombre de morphologies de dégradations. Parmi ces dégradations, la desquamation en plaques a la particularité de se développer en dehors des zones de remontées capillaires ainsi qu'en l'absence de sels solubles, de sollicitation mécanique, de pollution atmosphérique ou de colonisation biologique. Ce phénomène est donc induit par les propriétés intrinsèques du matériau et son comportement vis-à-vis des conditions environnementales. L'objectif de ce travail de recherche est d'établir le rôle joué par les minéraux argileux dans ce phénomène de dégradation spécifique. Une étude de terrain a pu mettre en exergue que le degré de desquamation en plaques observable sur des monuments de périodes de construction équivalentes est variable suivant l'origine des assises. A l'issue de cette reconnaissance, neuf échantillons représentatifs de la variabilité du degré de desquamation en plaques ont été prélevés en carrières. Une étude conventionnelle sur les caractéristiques pétrographiques et la composition minéralogique de ces types de " Pierre du Midi " a tout d'abord été conduite. Par la suite, une définition précise du cortège de minéraux argileux a été menée par le biais d'une approche méthodologique originale. Cette dernière combine la caractérisation cristallochimique au MET-EDS à la simulation des raies 00ℓ de diffraction des rayons X. Cette méthode a permis de déterminer les quantités de chacune des phases de phyllosilicate composant les différents cortèges. Le lien entre la quantité de feuillets de phyllosilicates expansifs et le degré de desquamation en plaques a pu, de ce fait, être mis en évidence. Après avoir déterminé les propriétés de stockage et de transfert des fluides des différents types de pierre, leur comportement hydromécanique a été évalué. L'ensemble de ces propriétés pétrophysiques a permis de mettre en relief la forte hétérogénéité du matériau à l'étude. Les indices de durabilité calculés à partir de ces résultats manquent cependant de pertinence quant à la prédiction du phénomène de desquamation en plaques. Après une analyse statistique (ACP) des données expérimentales, la meilleure interprétation suggère que ce phénomène soit déclenché par l'interaction entre les feuillets de phyllosilicates expansifs et les molécules d'eau. Cette interaction se manifeste par le comportement hydromécanique des pierres qui entraîne leur dégradation. Ce dernier est largement contrôlé par les propriétés physiques de stockage et de transfert des fluides qui conditionnent l'accommodation des déformations au niveau macroscopique.
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Eriksen, Hammer Stine [Verfasser], Stephan [Akademischer Betreuer] Weinbruch i Konrad [Akademischer Betreuer] Kandler. "Characterisation of ice particle residuals and aerosol particles in laboratory and field experiments by scanning electron microscopy during INUIT (Ice Nuclei research UnIT) / Stine Eriksen Hammer ; Stephan Weinbruch, Konrad Kandler". Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2019. http://d-nb.info/1185070729/34.

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Aberra, Guebrou Samuel. "Influence des plasmons de surface propagatifs sur la cohérence de systèmes optiques". Phd thesis, Université Claude Bernard - Lyon I, 2012. http://tel.archives-ouvertes.fr/tel-00798779.

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Cette thèse expérimentale s'est attachée à l'étude des effets induits par l'extension spatiale desplasmons de surface sur l'émission de matériaux organiques et inorganiques. Le système estformé d'un ensemble d'émetteurs localisés émettant principalement des plasmons de surfacedélocalisés. Dans un premier temps, nous nous sommes intéressés à l'imagerie par microscopieplasmon, technique de plus en plus utilisée dans divers domaines, notamment la biologie. Nousavons montré que l'émission détectée en un point provient essentiellement de l'environnementet non du point observé, définissant ainsi un cercle d'influence lié à la longueur de propagationdu plasmon de surface. Quand le plasmon interagit plus fortement avec des émetteurs, ilpeut entrer en régime de couplage fort. Ce couplage fort se traduit par un changement dansles énergies du système et par l'apparition de nouveaux états hybrides excitons-plasmons, lespolaritons. Les différents émetteurs localisés (des chaines de colorants agrégés) ne sont alorsplus indépendants entre eux. Des mesures de diffusion montrent un effet collectif induit par lecouplage fort. Ces expériences ont été confirmées par des mesures de cohérence spatiale, réaliséesen ajoutant une expérience de fentes d'Young au dispositif de microscopie plasmon. Ilapparait qu'un état cohérent étendu sur plusieurs microns se forme, conformément aux prévisionsthéoriques. L'ensemble d'émetteurs se comporte alors comme une macromolécule, dontl'interaction est induite par le plasmon de surface.
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Huang, Ping-Chun, i 黃柄鈞. "Observing dynamic interactions of store-operated calcium channel proteins by fluorescence lifetime imaging microscopy". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/8vmdqv.

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碩士
國立陽明大學
生醫光電工程研究所
97
The Ca2+ influx is essential for initiating messange to regulate several vital processes. The store-operated Ca2+ channels (SOCs) constructed by Orai1 with ER membrane peotein STIM1 were recently found to be a unique Ca2+ entry pathway which is the major Ca2+ signaling cascade for non-excitable cells. The SOCs also functional exist in various types of cells such as excitable neuroendocrines like rat pheochromocytoma PC12 cells where voltage-gated Ca2+ channels are the major entry route. Althogh Orai1 together with STIM1 are thought to be interact with each other thorugh biochemical evidence, it is still unrevealed to define the detail mechanism about their dynamic interactions during store-operated conditions in situ. To solve this problem in this thesis, the green fluorescence protein (EGFP) targeted Orai1 (to either N- or C-terminal; wild type or double deletion type or Orai1, as donor) and mOrange flagged STIM1 (as acceptor) were used as a fluorescence resonance energy transfer (FRET) pair within living PC12 cells under a new constructed one-photon excitation fluorescence lifetime imaging microscopy (FLIM) adapting the strategy of time-correlated single photon counting (TCSPC). The activity of SOCs, namely the store-operated Ca2+ entry (SOCE) was measured using fura-2 imaging method. The ER Ca2+ ATPase inhibitor thapsigargin (TG) was used to activate the SOCE. The lifetime map and histogram/distribution of each single cells were acquired under FLIM. Both the color coded liftime map (plasma membrane) and the distribution (100 ps left shift) of EGFP tagged Orai1 changed signficantly after 20-minute administering of TG. The efficiency xi of FRET from each experimental sets was also calculatecd and compared. In summary, we further show the dynamic interactions between the essential SOC protein Orai1 and STIm1 with the novel FLIM-FRET technique within living PC12 cells.
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Książki na temat "Stone – microscopy"

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Knutsson, Kjel. Patterns of tool use: Scanning electron microscopy of experiental quartz tools. Uppsala: Societas Archaeologica Upsaliensis, 1988.

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Sussman, Carole. A microscopic analysis of use-wear and polish formation on experimental quartz tools. Oxford, England: B.A.R., 1988.

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Sala, Irene Levi. A study of microscopic polish on flint implements. Oxford, England: Tempus Reparatum, 1996.

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Croft, Shannon. Lithic Residue Analysis: A Review and Guide to Techniques. British Archaeological Reports Limited, 2021.

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Amateur Microscopist or, Views of the Microscopic World, a Handbook of Microscopic Manipulation and Microscopic Objects ... Illustrated with 247 Figures on Wood and Stone. Creative Media Partners, LLC, 2023.

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Chakera, Aron, William G. Herrington i Christopher A. O’Callaghan. Haematuria. Redaktorzy Patrick Davey i David Sprigings. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199568741.003.0055.

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Haematuria is the presence of blood in the urine. Haematuria may be either macroscopic (frank haematuria) or detectable only on urine dipstick (microscopic haematuria). Frank haematuria can appear quite dramatic and usually leads patients in the community to seek medical attention. The high incidence of urinary tract infections as an underlying cause means that patients often have associated dysuria and frequency. Significant haematuria can lead to clot formation in the urinary tract and obstruction. The resulting symptoms are equivalent to those from obstruction due to stones. Microscopic haematuria is usually noted as an incidental finding. This chapter covers the approach to diagnosis, diagnostic tests, therapy, and prognosis.
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Neary, John, i Neil Turner. The patient with haematuria. Redaktor Neil Turner. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199592548.003.0046.

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Haematuria is a common presenting feature of diseases of the kidney or the renal tract. It is also common in screening tests, single dipstick tests being positive in perhaps 5% of individuals. Age and whether the blood is visible (macroscopic) or non-visible (microscopic) impact largely on whether the explanation is likely to be broadly urological or nephrological. Origins are most commonly simple or urological. Macroscopic bleeding is rare in renal disease, and urine colour is then usually more rather smoky than red except when there is very acute inflammation. The chief urological causes are neoplasia, infection, stones, and trauma. Some traditionally medical conditions may cause simple bleeding; examples include cystic kidney diseases, papillary necrosis and macro- or microvascular ischaemic lesions. The major concern to nephrologists is that even non-visible haematuria may be a pointer to inflammatory or destructive glomerular processes. The presence of casts or dysmorphic red cells is a pointer to glomerular disease; more important in clinical practice are the three other key markers of renal disease: proteinuria, renal impairment in the absence of urinary tract obstruction, and hypertension. In the general population, microscopic haematuria does associate with a long-term increased risk of end-stage renal failure, so after negative investigations, occasional long-term checks are indicated. The case for population screening for haematuria appears weak.
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Dworkin, Craig. Helicography. punctum books, 2021. http://dx.doi.org/10.53288/0352.1.00.

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Part art history essay, part experimental fiction, part theoretical manifesto on the politics of equivalence, Helicography examines questions of scale in relation to Robert Smithson’s iconic 1970 artwork Spiral Jetty. In an essay and film made to accompany the earthwork, Smithson invites us to imagine the stone helix of his structure at various orders of magnitude, from microscopic molecules to entire galaxies. Taking up this invitation with an unrelenting and literal enthusiasm, Helicography pursues the implications of such transformations all the way to the limits of logic. If other spirals, from the natural to the man-made, were expanded or condensed to the size of Spiral Jetty, what are the consequences of their physical metamorphoses? What other equivalences follow in turn, and where do their surprising historical, cultural, and mechanical connections lead? This book considers a number of forms in order to find out: the fluid vortices of whirlpools, hurricanes, and galaxies; the delicate shells of snails and the threatening pose of rattlesnakes; prehistoric ferns and the turns of the inner ear; the monstrous jaws of ancient sharks; a baroque finial scroll on a bass viol; a 19th-century watch spring; phonograph discs and spooled film; the largest open-pit mine on the planet. The result is a narrative laboratory for the “science of imaginary solutions” proposed by Alfred Jarry (whose King Ubu also plays a central role in the story told here), a work of fictocriticism blurring form and content, and the story of a single instant in time lost in the deserts of the intermountain west.
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Części książek na temat "Stone – microscopy"

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Koshy, P., A. George, K. Sachidev, T. Joseph i Y. M. Fazil Marickar. "Matrix in Stone: An Electron Microscopy Study". W Urolithiasis, 39–40. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4899-0873-5_10.

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Li, Yongxiang, Lijuan Yang, Xiao Li, Yongfei Li, Qiang Zhang i Shoude Pang. "Mechanical Properties and Micromechanism of Geopolymers to Replace Cement Stabilized Crushed Stone". W Lecture Notes in Civil Engineering, 43–58. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1748-8_4.

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AbstractIn order to realize the resource utilization of solid waste, the principle of alkali excitation is used to prepare geopolymers with fly ash, mineral powder and wet carbide slag as the main materials to replace part of the cement as the cementing material for the pavement base. Geopolymer-stabilized crushed stone was prepared by compounding cement and aggregate with geopolymer, and the unconfined compression strength, indirect tensile strength, compression rebound modulus, scour resistance and microscopic X-ray diffraction (XRD) and scanning electron microscopy (SEM) tests were carried out to study the effect of the change of geopolymer content on the mechanical properties of geopolymer-stabilized crushed stone and its mechanism. The test results show that when adding 30% geopolymer, the mechanical properties similar to those of cement can be obtained to a certain extent. XRD and SEM analysis showed that the geopolymer provided appropriate amount of silico-alumina and calcareous components to form calcium silicate hydrate (C–S–H) and calcium silicate (aluminum) hydrate (C–(A) –S–H) condensation. The glue can form a dense structure and increase the strength of the mixture.
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Leshkanov, Andrei, Lev Dobshits i Sergey Anisimov. "Scanning Electron Microscopy of Plasticized Cement Stone After Heat-Moisture Treatment". W Lecture Notes in Civil Engineering, 167–77. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-10853-2_16.

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Reynolds, Suzanne, i Donn S. Gorsline. "Silt Microfabric of Detrital, Deep Sea Mud(stone)s (California Continental Borderland) as Shown by Backscattered Electron Microscopy". W Frontiers in Sedimentary Geology, 203–11. New York, NY: Springer New York, 1991. http://dx.doi.org/10.1007/978-1-4612-4428-8_21.

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Prinsloo, Linda C., i Luc Bordes. "CHAPTER 7. Raman Microscopy as a Primary Technique for Identifying Micro-residues Related to Tool-use on Prehistoric Stone Artefacts". W Raman Spectroscopy in Archaeology and Art History, 81–96. Cambridge: Royal Society of Chemistry, 2018. http://dx.doi.org/10.1039/9781788013475-00081.

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Tafelmaier, Yvonne, Guido Bataille, Viola Schmid, Andreas Taller i Manuel Will. "Microscopic Use-Wear Analysis". W Methods for the Analysis of Stone Artefacts, 57–63. Wiesbaden: Springer Fachmedien Wiesbaden, 2022. http://dx.doi.org/10.1007/978-3-658-39091-4_7.

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Rarback, H., D. Shu, Su Cheng Feng, H. Ade, C. Jacobsen, J. Kirz, I. McNulty, Y. Vladimirsky, D. Kern i P. Chang. "The Stony Brook/NSLS Scanning Microscope". W Springer Series in Optical Sciences, 194–200. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-540-39246-0_35.

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Chirikure, Tamirirofa, Angela James, Nomkhosi Nzimande, Asheena Singh-Pillay i Inbanathan Naicker. "A Microscope, a Stone, a Cap, and a Lampshade". W Object Medleys, 147–62. Rotterdam: SensePublishers, 2017. http://dx.doi.org/10.1007/978-94-6351-194-0_10.

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Hesse, A., G. Sanders i D. B. Leusmann. "Investigation of the Structure of Canine Urinary Stones Using Scanning Electron Microscopy". W Investigative Urology 2, 169–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-72735-1_26.

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Khan, S. R., B. Finlayson i R. L. Hackett. "A Microscopic Study of the Matrix of Some Calcium Oxalate Renal Stones". W Urolithiasis and Related Clinical Research, 923–25. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-7272-1_201.

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Streszczenia konferencji na temat "Stone – microscopy"

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Gallego-Blázquez, Rocío, i María Soledad Camino-Olea. "Evolution of the natural stone facade cladding system". W PROCEEDINGS OF THE 15TH INTERNATIONAL CONFERENCE ON X-RAY MICROSCOPY – XRM2022. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0170888.

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Feroldi, Ada, Elisa De Jesus Da Silva i Marta Marçal Gonçalves. "Algarve dry stone walls – A resilient forgotten constructed heritage". W PROCEEDINGS OF THE 15TH INTERNATIONAL CONFERENCE ON X-RAY MICROSCOPY – XRM2022. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0172585.

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Vornicu, Nicoleta. "Caracterizarea mortarelor pentru castelul medieval de la Soroca, Republica Moldova". W Cercetarea și valorificarea patrimoniului arheologic medieval. "Ion Creanga" State Pedagogical University, 2022. http://dx.doi.org/10.37710/idn-c12-2022-102-120.

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This study is the first result of research on the mortars and bricks used to build the medieval stone fortress of Soroca, carried out within the project “Ștefan cel Mare - common history, common heritage, Soroca-Vaslui”, 1HARD/2.1/50, coordinated by UPS “Ion Creangă”, Republic of Moldova. The investigation began with the primary goal of providing a complete characterization of the types of mortar and brick used in this citadel, but a more complex trajectory developed throughout the study. Mortars and bricks were characterized by petrographic, mineralogical and geochemical analyzes (X-ray fluorescence spectrometry and optical microscopy). The results showed that in the production of the mortars taken from different areas of the Citadel, siliceous aggregates and lime binders were used, the ratio between them, the microscopic appearance and the state of preservation of the component minerals allowed the establishment of their authenticity. More recent plaster and sand intervention mortars were identified in three areas. The results of the analysis of the brick revealed the nature of the mineral content.
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Silva, Evelyn Belorio da, Wangner Barbosa da Costa, Marcela de Oliveira i Nilton Francelosi Azevedo Neto. "Characterization of kidney stones using Raman spectroscopy". W IV Seven International Congress of Health. Seven Congress, 2024. http://dx.doi.org/10.56238/homeivsevenhealth-025.

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Raman spectroscopy is a promising analytical technique for characterizing kidney stones, allowing precise identification of their components and non-destructive analysis. In this study, a kidney stone was characterized using micro-Raman spectroscopy at a wavelength of 532 nm, using a prototype sample holder to optimize measurements and avoid damaging the confocal microscope lens.
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Jacobsen, C., J. Kirz, J. Maser, A. Osanna, S. Spector, S. Wang, S. Wirick i in. "X-ray microscopy: new capabilities and short pulse possibilities". W Applications of High Field and Short Wavelength Sources. Washington, D.C.: Optica Publishing Group, 1997. http://dx.doi.org/10.1364/hfsw.1997.tha2.

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Discussions of x-ray holography as a demanding application for high intensity sources date back at least two decades [1, 2], and x-ray lasers have been used in demonstrations of x-ray microscopy [3, 4, 5]. At the same time, synchrotron-based x-ray microscopes have been developed for imaging of hydrated, unsectioned biological specimens at 30-50 nm resolution, and these microscopes are in regular operation at Göttingen/Berlin, Berkeley, Arhus, Stony Brook/Brookhaven, and elsewhere.
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Jacobsen, C. "Recent developments in scanning microscopy at Stony Brook". W Sixth international conference on x-ray microscopy (XRM99). AIP, 2000. http://dx.doi.org/10.1063/1.1291112.

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Е.Я., Зубавичус,, Вдовиченко, М.В., Седов, Вл.В., Трунькин, И.Н., Светогоров, Р.Д., Пожидаев, В.М. i Терещенко, Е.Ю. "WALL PAINTING FRAGMENTS FROM YURYEV-POLSKOY ARCHAEOLOGICAL EXPEDITION: FIRST FINDINGS OF NATURAL SCIENCE STUDIES". W Археология Владимиро-Суздальской земли. Crossref, 2021. http://dx.doi.org/10.25681/iaras.2021.978-5-94375-365-7.98-111.

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В 2019 г. при раскопках в Георгиевском соборе в г. Юрьеве-Польском обнаружены фрагменты штукатурки, которые предположительно можно было отнести к фрагментам стенного письма. Собор XIII в. не расписывался, и найденные фрагменты, вероятно, являются остатками более раннего собора XII в. Фрагменты были изучены с использованием методов: растровой электронной микроскопии с энергодисперсионным рентгеновским микроанализом, газовой хроматографии с масс-спектрометрией, рентгенофазового анализа на источнике синхротронного излучения КИСИ-«Курчатов». Результаты исследований показали присутствие в верхнем слое образцов таких пигментов, как красная охра, желтая охра, киноварь, зеленая земля. Также было выявлено наличие органических связующих на основе молока крупного рогатого скота. Особенности штукатурки позволили предположить, что первый собор был построен из каменных квадров. During excavations in 2019 at the St. George Cathedral located in the Yuryev-Polsky town, fragments of colored wall plaster were discovered. These fragments were suggestively attributed to wall painting. The cathedral dated to the XIII century has not ever been painted and thus the fragments found had to belong to an earlier cathedral of the 12th century. The fragments were analyzed using the natural science techniques including scanning electron microscopy with energy dispersive X-ray microanalysis, gas chromatography with mass spectrometry and X-ray phase analysis implemented at the KISI-”Kurchatov” synchrotron radiation source. Our research revealed a number of mineral pigments in the samples upper layer such as: red ocher, yellow ocher, cinnabar, and green earth. More over the presence of organic binders based on cattle milk was discovered. The features of the wall plaster made it possible to assume that the first cathedral was built from stone squares.
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Cheng, Pan, Wanyi Tang i Hao He. "Two-photon activation of endogenous store-operated calcium channels without optogenetics". W Multiphoton Microscopy in the Biomedical Sciences XVIII, redaktorzy Ammasi Periasamy, Peter T. So, Xiaoliang S. Xie i Karsten König. SPIE, 2018. http://dx.doi.org/10.1117/12.2286586.

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Feser, M. "Instrumentation advances and detector development with the Stony Brook scanning transmission X-ray microscope". W Sixth international conference on x-ray microscopy (XRM99). AIP, 2000. http://dx.doi.org/10.1063/1.1291173.

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Dlott, Dana D. "Ultrafast Microscopy of Exploding Solids". W International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/up.1990.we2.

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It is often desirable to obtain simultaneous spatial and temporal resolution of ultrafast processes. The specific instance where this is most valuable is when the object to be studied is spatially inhomogeneous. For example, in interfacial phenomena, it useful to examine both phases simultaneously. We have constructed an ultrafast microscope to study photo induced physical and chemical processes. It consists of a giant pulse to induce the transformation, microscope optics, a stroboscopic illuminator, and a computer digitized video system to store the ultrafast (≈ 2 ps) images.
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Raporty organizacyjne na temat "Stone – microscopy"

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Narlesky, Joshua Edward, Kennard Virden Jr Wilson i Elizabeth J. Kelly. Microscopic Examination of the Corroded Hagan Container Used to Store Molten Salt Extraction Residue XBPS333. Office of Scientific and Technical Information (OSTI), styczeń 2018. http://dx.doi.org/10.2172/1418773.

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