Relevant bibliographies by topics / Calamine

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Calamine'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Calamine"

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Ainsworth, Steve. "Think pink: Calamine." Nurse Prescribing 15, no. 11 (November 2, 2017): 569. http://dx.doi.org/10.12968/npre.2017.15.11.569.

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Liu, Dong Qi, Ying Liu, Shu Fa Han, Yu Feng Zhang, and Cui Yu Yin. "Study on the Calamine/Sodium Alginate Modified Viscose Fiber." Advanced Materials Research 418-420 (December 2011): 192–95. http://dx.doi.org/10.4028/www.scientific.net/amr.418-420.192.

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In this article we successfully prepared calamine / sodium alginate viscose fiber. Good dispersion and stability of the modified solution was prepared by dispersing calamine in alkaline solution of sodium alginate, and then mixed it with viscose spinning solution by spinning injection methods. Moreover, the stability of calamine / sodium alginate solution, the effect of concentration of calamine on the fiber properties is studied in this paper. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and physical mechanical performance are test to characterize the structure and the performance of the calamine / sodium alginate viscose fiber.
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Zhang, Xiaodong, Long Chen, Yu Bai, and Keli Chen. "Study on the Processing Technology of Calamine Calcination by Near-Infrared Spectroscopy." Journal of Spectroscopy 2019 (March 10, 2019): 1–13. http://dx.doi.org/10.1155/2019/9326789.

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Near-infrared spectroscopy has been widely used in qualitative and quantitative analysis and online monitoring in the production process of traditional Chinese medicines. The aim was to establish a fast determination model of zinc oxide (ZnO) content in calcined calamine and to explore methods through judging the end point of calamine calcination. Eight batches of calamine samples sourced from hydrozincite with different sizes and textures were calcined at different temperatures. During the calcination process, ZnO contents, X-ray diffraction (XRD) patterns, and near-infrared spectra of the samples were used to analyze their changes rules. The model of determining ZnO content of calcined calamine was established to use near-infrared spectroscopy based on the partial least squares (PLS) regression algorithm. In addition, this paper summarized the change rules of calamine in calcination according to XRD patterns, using the “K value” quantitative method to define the characteristic T value. When the T value was equal to 1.00 (100%), that is to say, the calamine sample was completely calcined. Then, matching the near-infrared spectroscopy data with the T value and establishing the T value analysis model using the PLS algorithm were performed. Through cross and independent validation and evaluation, it was proved that the two models were very effective and had strong predictive abilities. Finally, the purpose of the online monitoring of the calcination process and controlling the quality of the calcined calamine was achieved.
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Suen, KC, L. Ho, KLK Chow, LLS Wong, and L. Leong. "Calamine lotion: Mimicking intramammary calcifications." Australasian Radiology 51 (September 14, 2007): B43—B44. http://dx.doi.org/10.1111/j.1440-1673.2007.01844.x.

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Jonker, Leon, Jane Todhunter, Lesley Robinson, and Stacey Fisher. "Open-label, randomised, multicentre crossover trial assessing two-layer compression bandaging for chronic venous insufficiency: results of the APRICOT trial." British Journal of Community Nursing 25, Sup6 (June 2, 2020): S6—S13. http://dx.doi.org/10.12968/bjcn.2020.25.sup6.s6.

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Compression bandaging is the mainstay therapy for chronic venous insufficiency and venous leg ulcers, but patient compliance can be challenging due to associated discomfort. The study discussed here aimed to compare AndoFlex TLC Calamine and Coban2 compression bandaging in relation to patient comfort and pruritus symptomology, with severity of pruritus as the primary outcome. This was a multi-centre, prospective, non-blinded, randomised controlled crossover trial involving 39 randomised patients with chronic venous insufficiency patients. In two periods, the patients wore AndoFlex TLC Calamine or Coban2 for 3 weeks each. No significant differences in validated pruritus outcome measures were observed, including a non-significant treatment effect for the severity of pruritus scale (n=35 trial completers; p-value=0.24, Wilcoxon test). However, after trying both bandages, 21 of the 35 patients (60%) definitely preferred AndoFlex TLC Calamine, whereas 4 patients (11%) definitely preferred Coban2. Thus, AndoFlex TLC Calamine compression bandage therapy was preferred by most patients, although this observation could not be confirmed using validated patient-reported outcome measures for pruritus. Further research is indicated to establish if patient preference translates into favourable clinical outcomes. ISRCTN number: ISRCTN95282887
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Pereira, C. A., and A. E. C. Peres. "Reagents in calamine zinc ores flotation." Minerals Engineering 18, no. 2 (February 2005): 275–77. http://dx.doi.org/10.1016/j.mineng.2004.09.011.

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Maalem, Badreddine, Djamel Berdjane, Okba Belahssen, Latifa Tairi, Youcef Faci, and Samira Djemili. "IDENTIFICATION OF THERMAL AND MICROSTRUCTURAL PROPERTIES OF HOT ROLLING SCALE." Acta Metallurgica Slovaca 25, no. 4 (December 18, 2019): 291. http://dx.doi.org/10.12776/ams.v25i4.1360.

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<p class="AMSmaintext2">A significant amount of scale is produced during casting of ingots and processing of hot-rolled products. In manufacturing steel, during the various rolling operations, the amount of scale produced is approximately 0.1% of the annual production of the rolling mills. The quality of the thin sheet during rolling is affected by the behavior of the iron oxide layers formed on their surfaces. For this reason, acids and oils are used for the descaling of slabs and billets by means of pressurized water. The calamine, contaminated by these various acids and used oils, is rejected and stored involuntarily on important areas and pollutes soil and groundwater. Micrographic observations as well as X-ray diffraction analysis have shown that calamine consists mainly of iron oxides. Hematite and magnetite become the main components for oxidation times greater than 1 hour. Characterization tests have shown that calamine is dense (ρ = 4.8 g/cm<sup>3</sup>), its particle size is variable depending on the degree of oxidation (from 0.5 to 10 mm). Simultaneous thermal analysis showed that an increase in mass of the calamine sample with a release of heat. Studies are underway for the physico-chemical characterization of the soils of the storage areas.</p>
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Blair, Claude, John Blair, and R. Brownsword. "An Oxford Brasiers' Dispute of the 1390s: Evidence for Brass-Making in Medieval England." Antiquaries Journal 66, no. 1 (March 1986): 82–90. http://dx.doi.org/10.1017/s0003581500084493.

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A contract of 1392 between two Oxford brasiers, with an account of the ensuing dispute, provides important evidence for the organization of the medieval brasier's craft andfor technical aspects of his trade. One brasier employed another to make pots, bells and fawtys (probably faucets) for a flat payment by weight. The master-brasier provided the raw materials, comprising scrap brass on the one hand, and graycober (perhaps antimonial copper) and stelebake (probably zinc-bearing calamine ore so called from the place Stolberg) on the other. This, with newly discovered references to the importation of calamys and calamin in 1384, provides the first evidence yet found for the making of brass in England from its raw materials.
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Dai, Yongxia, Yinghui Wang, and Zheng Yang. "In vitro antibacterial effect of nanomaterial calamine." Ferroelectrics 580, no. 1 (August 18, 2021): 159–71. http://dx.doi.org/10.1080/00150193.2021.1905736.

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Bouabdellah, Mohammed, Wissale Boukirou, Adriana Potra, Erik Melchiorre, Hassan Bouzahzah, Johan Yans, Khadra Zaid, et al. "Origin of the Moroccan Touissit-Bou Beker and Jbel Bou Dahar Supergene Non-Sulfide Biomineralization and Its Relevance to Microbiological Activity, Late Miocene Uplift and Climate Changes." Minerals 11, no. 4 (April 11, 2021): 401. http://dx.doi.org/10.3390/min11040401.

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Through integration of Pb-Zn ± Cu non-sulfide mineralogy, texture, and stable isotope (C, O, S) geochemistry, the world-class Touissit- Bou Beker and Jbel Bou Dahar Mississippi Valley-type districts of the Moroccan Atlasic system have been investigated in order to gain insights into the origin and processes that contributed to the formation of the base metal non-sulfide mineralization. In both districts, direct replacement (“red calamine”) and wallrock replacement (“white calamine”) ores are observed. Based on the mineral assemblages, ore textures, and crosscutting relations, three distinct mineralizing stages are recognized. The earliest, pre-non-sulfide gossanous stage was a prerequisite for the following supergene stages and constituted the driving force that ultimately promoted the leaching of most base metals such as Zn and Cu and alkalis from their rock sources. The following two stages, referred to as the main supergene “red calamine” and late “white calamine” ore stages, generated the bulk of mineable “calamine” ores in the Touissit-Bou Beker and Jbel Bou Dahar districts. Stable isotope compositions (δ13CV-PDB, δ18OV-SMOW, δ34SCDT) support a three-stage model whereby metals were released by supergene acidic fluids and then precipitated by bacteria and archaea-mediated metal-rich meteoric fluids due to a decrease in temperature and/or increase of fO2. Oxygen isotope thermometry indicates decreasing precipitation temperatures with advancing paragenetic sequence from 33° to 18 °C, with wet to semi-arid to arid climatic conditions. The close spatial relationships between coexisting sulfide and non-sulfide mineralization along with stable isotope constraints suggest that the oxidation of sulfides occurred concurrently after the main stage of the Alpine orogeny between 15 Ma and the present. More importantly, the current data show for the first time the involvement of biologically controlled activity as the major driving process that triggered both oxidation and deposition of supergene mineralization at Jbel Bou Dahar and Touissit-Bou Beker districts. Conclusions drawn from this study therefore have implications for supergene Mississippi Valley-type (MVT) -derived non-sulfide deposits worldwide and account for the prominent role of biological processes in the genesis of this category of ore deposits.
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Dissertations / Theses on the topic "Calamine"

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Picque, Benjamin. "Étude expérimentale et simulation numérique du comportement mécanique des calamines lors du laminage à chaud." Phd thesis, École Nationale Supérieure des Mines de Paris, 2004. http://pastel.archives-ouvertes.fr/pastel-00001360.

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Le laminage à chaud des aciers représente une des étapes les plus critiques dans l'obtention de produits finis ayant une bonne qualité de surface. L'augmentation de la productivité ajoutée à l'accroissement des besoins du client induit des règles de plus en plus sévères pour les trains à bandes. L'aspect de surface d'une bande est un enjeu très important en termes de coûts d'opération du laminoir et de limitation de productivité. Parmi tous les défauts de surface, le plus défavorable provient de la couche d'oxyde (calamine) formée à la surface de l'acier pendant le laminage à chaud, à l'entrée du finisseur (dernière partie du laminoir): la calamine secondaire dont le comportement mécanique est toujours mal connu. La calamine secondaire peut être fissurée sous les contraintes imposées par les passes successives de laminage, et peut être incrustée dans son substrat en acier; ce défaut est appelé "défaut de calamine incrustée". De plus, l'extrusion du métal sous-jacent dans les fissures de calamine engendre d'importantes modifications locales des conditions de frottement et de transfert thermique. En conséquence, une description précise des mécanismes de déformation de la calamine est nécessaire pour définir au mieux les conditions aux limites sous emprise, et mieux comprendre les mécanismes de défauts d'incrustation. Notre objectif scientifique est donc de réaliser un modèle physique et numérique réaliste, capable de simuler l'écoulement de la calamine dans une emprise de laminage, et en particulier son endommagement. Après la présentation du procédé industriel et du contexte de l'étude, les propriétés physiques et mécaniques des calamines dans le finisseur sont mises en évidences. Le logiciel éléments finis Forge2® sélectionné pour cette étude pour simuler le comportement de la calamine dans une cage de finisseur est présenté. Les développements numériques réalisés pour simuler les différents types d'endommagement de la calamine (fissure, décohésion, glissement, extrusion) sont décrits. Trois tests mécaniques ont été sélectionnés pour reproduire les sollicitations subies par la couche d'oxyde en entrée d'emprise et pouvant conduire à sa fissuration: le test de flexion 4 points, le test de traction et le bipoinçonnement. Une étude numérique est réalisée en parallèle. Avec ces trois essais mécaniques, réalisés à chaud, la description mécanique d'une cage de laminage est suffisamment complète pour simuler le procédé industriel dans de bonnes conditions.
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Picque, Benjamin. "Experimental study and numerical simulation of iron oxide scales mechanical behavior in hot rolling." Paris, ENMP, 2004. http://www.theses.fr/2004ENMP1288.

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Le laminage à chaud des aciers représente une des étapes les plus critiques dans l'obtention de produits finis ayant une bonne qualité de surface. L'augmentation de la productivité ajoutée à l'accroissement des besoins du client induit des règles de plus en plus sévères pour les trains à bandes. L'aspect de surface d'une bande est un enjeu très important en termes de coûts d'opération du laminoir et de limitation de productivité. Parmi tous les défauts de surface, le plus défavorable provient de la couche d'oxyde (calamine) formée à la surface de l'acier pendant le laminage à chaud, à l'entrée du finisseur (dernière partie du laminoir): la calamine secondaire dont le comportement mécanique est toujours mal connu. La calamine secondaire peut être fissurée sous les contraintes imposées par les passes successives de laminage, et peut être incrustée dans son substrat en acier; ce défaut est appelé "défaut de calamine incrustée". De plus, l'extrusion du métal sous-jacent dans les fissures de calamine engendre d'importantes modifications locales des conditions de frottement et de transfert thermique. En conséquence, une description précise des mécanismes de déformation de la calamine est nécessaire pour définir au mieux les conditions aux limites sous emprise, et mieux comprendre les mécanismes de défauts d'incrustation. Notre objectif scientifique est donc de réaliser un modèle physique et numérique réaliste, capable de simuler l'écoulement de la calamine dans une emprise de laminage, et en particulier son endommagement. Après la présentation du procédé industriel et du contexte de l'étude, les propriétés physiques et mécaniques des calamines dans le finisseur sont mises en évidences. Le logiciel éléments finis Forge2® sélectionné pour cette étude pour simuler le comportement de la calamine dans une cage de finisseur est présenté. Les développements numériques réalisés pour simuler les différents types d'endommagement de la calamine (fissure, décohésion, glissement, extrusion) sont décrits. Trois tests mécaniques ont été sélectionnés pour reproduire les sollicitations subies par la couche d'oxyde en entrée d'emprise et pouvant conduire à sa fissuration: le test de flexion 4 points, le test de traction et le bipoinçonnement. Une étude numérique est réalisée en parallèle. Avec ces trois essais mécaniques, réalisés à chaud, la description mécanique d'une cage de laminage est suffisamment complète pour simuler le procédé industriel dans de bonnes conditions
Hot rolling of steels represents one of the most critical steps to achieve finished products with high surface quality. The increasing productivity added to the rising customer requirements result in more and more severe scheduling rules for the HSM. Strip surface aspect is very important in terms of HSM operation costs and productivity limitation. Among all surface defects, the most crippling comes from the oxide scale formed at the surface of the steel during the hot rolling, at the entry of the finishing mill (last part of the hot strip mill): the secondary scale, mechanical behaviour of which is still poorly known. The secondary scale may fracture under the stresses imposed by the successive rolling passes, and can be embedded in the steel strip surface: this defect is called "rolled-in scale defect". In addition, the extrusion of the subjacent metal inside the oxide cracks induces large local modifications of friction and heat transfer conditions. Consequently, a precise description of oxide scale deformation mechanisms is necessary to better define the boundary conditions in a roll bite and to better understand the initiation mechanisms of rolled-in scale defects. Our scientific objective is then to provide a realistic physical and numerical model to simulate the oxide scale flow in the roll bite and in particular, its damage. After the presentation of the industrial process and the context of this study, the physical and mechanical properties of the oxide scale in the finishing mill are investigated. We introduce the Forge2® finite element software, selected for this study to simulate the oxide scale behaviour in a finishing mill stand. The numerical developments performed to simulate the different kinds of oxide damage are described. Three mechanical tests have been selected to approach the solicitations undergone by the oxide scale at the entry of the roll gap, suspected to be critical for damage: the 4-point hot bending test, the hot tension test and the hot plane strain compression test. A numerical study is performed in parallel. Based on constitutive data obtained from these three mechanical tests, the mechanical description of a rolling stand is sufficient for satisfactory simulation of the industrial process
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Carlos, Carina Fidalgo. "Caracterização e remoção da calamina do aço laminado." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/21888.

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Mestrado em Engenharia de Materiais
O trabalho de projeto foi desenvolvido em parceria com a empresa Plafesa com o intuito de comparar processos não-químicos de remoção da calamina de laminagem da superfície de chapas de aço-carbono. De entre as várias técnicas possíveis, o estudo incidiu em processos de decapagem mecânica (erosiva e abrasiva) e física (ablação a laser), atualmente procurados dado o seu baixo impacto ambiental. Os métodos utilizados foram os seguintes: jateamento erosivo por via seca, jateamento erosivo por via húmida, jateamento com água a alta pressão, escovagem rotativa com escovas ou lamelas de manta abrasiva e remoção por ablação a laser. Para esta investigação foi feita a caracterização da calamina e da superfície das chapas de aço-carbono, recorrendo a técnicas como: microscopia ótica, eletrónica de varrimento com análise química (SEM-EDS), difração de raios-X (DRX) e perfilometria ótica 3D. Todas as técnicas testadas no trabalho mostram ser capazes de remover a calamina, havendo algumas diferenças no grau de remoção, aspeto e rugosidade final da superfície metálica. A técnica de jateamento erosivo por via seca aumenta a rugosidade (Sa = 4,3-4,7 m) relativamente à original (Sa = 2,1-2,4 m) e leva à formação de resíduos de agente erosivo (alumina ou carboneto de silício) que ficam incrustados no aço. As técnicas de jateamento com água a alta pressão e jateamento erosivo por via húmida provocam uma agressão significativa da superfície da chapa (Sa = 16,5-19,7 m). O método de escovagem rotativa é a técnica que proporciona melhor acabamento superficial, com valores mínimos de rugosidade (Sa = 0,6-1,8 m). A ablação laser garante igualmente a remoção de calamina e valores de rugosidade reduzidos (Sa = 2,0 m) mas o controlo dos parâmetros do processo é crítico, para não ocorrerem fenómenos de sobrefusão e evitar a marcação da superfície.
This project was developed in partnership with Plafesa company in order to compare non-chemical processes for descaling of hot rolled steel sheets. Among the various possible techniques, the study focused on mechanical stripping processes (erosive and abrasive) and physical (laser ablation), currently under scrutiny because of their low environmental impact. The methods used were: dry erosive blasting, wet erosive blasting, high pressure water blasting, brushing with rotating brushes or abrasive lamellae blankets and laser ablation removal. For this investigation the oxide scale and the surface of the carbon steel plates were characterized using techniques such as optical microscopy, scanning electron microscopy with chemical analysis (SEM-EDS), X-ray diffraction (XRD) and 3D optical profilometry. All of the techniques tested in this work were able to remove the oxide scales, although with some differences in the degree of removal, appearance and final roughness of the metal surface. The dry erosive blasting technique increases the surface roughness (Sa = 4.3 to 4.7 μm) relatively to the original one (Sa = 2.1-2.4 μm) and leads to the embedding of the erodent (alumina or silicon carbide) into the steel. The high pressure water blasting and erosive wet blasting techniques cause significant damage to the plate surface (Sa = 16.5 to 19.7 μm). The rotating brush method is the technique that provides better surface finishing with minimal roughness values (Sa = 0.6-1.8 μm). Laser ablation also ensures the removal of scale and the achievement of reduced roughness values (Sa = 2.0 μm). The control of the process parameters is critical to prevent over fusion phenomena and additional markings to the surface.
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Ogilvie, Megan Jacqueline 1979. "Ocean fertilization : ecological cure or calamity." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/39431.

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Thesis (S.M. in Science Writing)--Massachusetts Institute of Technology, Dept. of Humanities, Program in Writing and Humanistic Studies, 2004.
Vita.
Includes bibliographical references (leaves 35-41).
The late John Martin demonstrated the paramount importance of iron for microscopic plant growth in large areas of the world's oceans. Iron, he hypothesized, was the nutrient that limited green life in seawater. Over twenty years later, Martin's iron hypothesis is widely considered to be the major contribution to oceanography in the second half of the 20th century. Originating as an ecosystem experiment to test Martin's iron hypothesis, iron fertilization experiments are now used as powerful tools to study the world's oceans. Some oceanographers are concerned that these experiments are catapulting ocean science into a new era. The vast stretches of ocean play a key role in the global carbon cycle, and thus in regulating Earth's climate. Some scientists, engineers and international policy makers claim that dissolving iron in the ocean will help stop global warming. Adding large amounts of iron to the oceans may drastically increase the amount of carbon dioxide that phytoplankton can capture from the atmosphere, thereby reducing the most common greenhouse gas. But intentional iron fertilization over great expanses of the ocean may have unintended consequences for the world's largest ecosystem. The open ocean is one of the planet's last frontiers and a part of the global commons. As such, using the open ocean as a means to solve the complex problem of global warming raises deep questions about how humans think of and use the Earth. The question remains: Should humans use the ocean as a means to regulate a changing climate?
by Megan Jacqueline Ogilvie.
S.M.in Science Writing
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May, Shoshanna. "Fitness and genetic diversity in Bufo calamita populations." Thesis, University of Sussex, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.505908.

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The aims of this DPhil were the characterisation of major histocompatibility complex class II β loci in the amphibian species Bufo calamita, determination of fitness of four Bufo calamita populations and measurement of genetic diversity at both microsatellite loci and MHC class II β loci. The genetic diversity at microsatellite loci is considered to be neutral to selection and the genetic diversity seen at MHC loci is adaptive. Fitness in the four populations was measured using the known larval fitness traits age at metamorphosis, growth rates and survival. A 114 base pair section of MHC class II loci was characterised in this study. It was shown here that the diversity at neutral microsatellite markers was negatively correlated with adaptive MHC class II variation. No correlation was found between microsatellite HE and the larval fitness traits growth rate, survival and age at metamorphosis. However, MHC class II diversity was found to be associated with survival, and individuals that were heterozygous at both MHC loci had a significantly higher chance of survival than individuals homozygous at one or both of the two loci. A separate part of this DPhil project was the population genetics of six Irish Bufo calamita populations. The genetic structure was investigated using nine polymorphic microsatellite markers. It was found that all populations had similar and moderate levels of genetic diversity, comparable with those on the coast of north-west England. Toad populations were substantially differentiated, implying little migration between sites within historical times. Phylogenetics and estimates of divergence times supported the hypothesis that populations on the north coast of Dingle separated from those around Castlemaine Harbour many thousands of years ago, and are not recent introductions.
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Larsson, Matilda. "Inventering av Strandpadda (Bufo calamita) 2012 på Balgö och inom Varbergs kust." Thesis, Högskolan i Halmstad, Ekologi och miljövetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-21574.

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Godfrey, Lisa Pitcher. "Mining the Colorado Plateau: the Story of Calamity Mesa 1910-19." DigitalCommons@USU, 1991. https://digitalcommons.usu.edu/etd/4469.

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This thesis was written to outline the history of five stone houses, which have survived almost a century of mining activity. The houses are located on a barren mesa, called Calamity, in southwestern Colorado. This work was funded by the Bureau of Land Management, Department of the Interior, in order to explore the possibility of designating this site as a National Historic Site. Men and women lived and worked on this and the surrounding mesas for most of the twentieth century. The lives of the families, the men, women, and children who lived and worked on Calamity Mesa, provided the context for the entire period. These people formed nebulous communities on what could only be called a twentieth-century frontier. I used several methods for this study, including oral interviews with surviving miners and their families, company and government officials, mining engineers, and medical personnel involved in studies concerning the effects of radiation exposure. Government publications, local newspapers, and personal papers of several individuals were also researched. Through the use of these methods I further developed the history of the period, by focusing on Calamity Camp and the lives of the men and women who lived and worked there. The miners who came to Calamity Mesa extracted the carnotite ore from sandstone beds. Originally, miners searched for radium, desired for its illusory cure for cancer. Then they sought vanadium, which was used as a strengthening agent for steel during both world wars . Finally, their goal was uranium, a key component for the production of nuclear weapons and energy. The search for these minerals brought, many working class men and women to the Colorado Plateau. They brought their families to Calamity Mesa and lived in whatever shelter they could find. The stone houses, lived in by generation after generation of miners and their families, who came searching for carnotite, provided a permanence to Calamity Mesa throughout this period.
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Nicolle, Philip David. "The environmental physiology of Bufo bufo L. and Bufo calamita Laur. tadpoles." Thesis, Liverpool John Moores University, 1989. http://researchonline.ljmu.ac.uk/4987/.

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Using spawn collected from the north Merseyside sand dune system, the effects of temperature on growth, development, metabolism and metamorphosis in B. bufo and B. calamita tadpoles were investigated, together with a limited study on the effects of L-thyroxine. The effects of density on growth, developteI1t and metamorphosis were examined. Physiological and behavioural effects of B. bufo tadpoles on B. calamita tadpoles were also studied. B. calamita spawn and tadpoles survive at higher temperatures than B. bufo. Below20°CB. bufo spawn, and below 15°Ctheir t.adpcl.es, develop at a greater rate than B. calamita. B. calamita spawn and tadpoles' growth and development is faster at higher temperatures. B. calamita tadpoles have higher metabolic rates than B. bufo across the temperature range 15-30°C. Faster rates of metabolism and development in B. calamita result in smaller tadpoles and toadlets than B. bufo. B. calamita may compensate for this with increased metamorphic efficiency in terms of energy. It is speculated that differences in tadpole thyroid physiology could account for observed differences. metamorphic efficiency was greatest, and rates of development and growth maximised/at the tadpoles' preferred body temperature. Increased density reduced growth-and developteI1t of tadpoles, but influenced different stages in the two species. metamorphosis in all B. bufo tadpoles was delayed, whereas in B. calamita a proportion of the population metamorphosed apparently unaffected by increased density. The responses of tadpoles to temperature and density were related to the species' preferred spawning environments. In the presence of B. bufo tadpoles, B. calamita growth, development and metabolism was suppressed. The pattern of development and timing of metamorphosis in B. calamita became similar to that of B. bufo. Inhibition was not relieved by L-thyroxine, and did not effect tadpole behaviour. Mass specific food consumption was increased. It is speculated that the inhibitor is a parasite or a substance which affects assimilation.
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Oromí, Farrús Neus. "Latitudinal and altitudinal variation of life history traits in natterjack toads (Bufo calamita): genetic adaptation vs. phenotypic plasticity." Doctoral thesis, Universitat de Lleida, 2011. http://hdl.handle.net/10803/51584.

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Faucher, Leslie. "Histoire évolutive de deux espèces d’amphibiens pionnières, le Pélodyte ponctué et le Crapaud calamite, en milieu fortement anthropisé." Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10159/document.

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Abstract:
La perte et la fragmentation des habitats générées par les activités humaines érodent la diversité génétique intra-spécifique, entrainant l’extinction de populations chez de nombreuses espèces. Paradoxalement, des habitats artificiels comme les terrils du nord de la France favorisent l’installation de populations sauvages. Néanmoins leur localisation au sein d’un paysage très anthropisé interroge sur la pérennité des populations qu’ils hébergent. Cette étude visait à étudier la diversité génétique neutre des populations de Bufo calamita et Pelodytes punctatus, deux espèces d’amphibiens établies dans le bassin houiller et dans des habitats littoraux plus sauvages. Des approches de génétique des populations ont permis de décrire les effets de différents processus micro-évolutifs sur les niveaux de diversité génétique, depuis le processus biogéographique de colonisation des terrils jusqu’au régime d’appariement dans une population, en passant par une analyse multi-espèces de la connectivité paysagère. Les populations de B. calamita du bassin houiller présentent de forts niveaux de diversité génétique pouvant résulter d’introductions d’individus de diverses localités. Toutefois, dans le bassin houiller, une forte différenciation génétique s’observe chez les deux espèces. Cela s’explique au moins en partie par la présence de barrières aux flux de gènes entre populations qui, à long terme, pourrait compromettre le maintien des populations. Enfin, le succès reproducteur inégal des mâles de B. calamita, qui pourrait induire des baisses de niveau diversité génétique intra-population, semble associé à une compétition entre mâles et implique plusieurs stratégies d’appariements
Human activities induce habitat loss and fragmentation that have an erosive effect on the level of intraspecific genetic diversity, decreasing the individual fitness and jeopardizing populations’ adaptive capability. Conversely, new human-made areas, such as spoil heaps of northern France, can provide suitable habitats for pioneering species. Spoil heaps being part of a highly human-fragmented landscape, the likelihood of population persistence is questioned given the scarcity of suitable habitats and the occurrence of potential barriers to dispersal. We studied the intraspecific genetic diversity of two anurans, Pelodytes punctatus and Bufo calamita, located in coalfield areas and semi-natural coastal habitats. We focused on the effects of micro-evolutionary processes of genetic drift and gene flow in shaping genetic structure. We studied (i) the biogeographical history of colonization of coalfield areas in B. calamita, (ii) the landscape connectivity using a multispecies approach, and (iii) the evolutionary determinants of variance in breeding success in B. calamita. In coalfield areas, B. calamita populations showed high levels of genetic diversity suggesting several independent colonization events. Nonetheless, marked local genetic discontinuities were observed within coalfield areas for both species, suggesting occurrence of environmental barriers impeding gene flow that may compromise population viability. Within a B. calamita population, we observed a polygynous mating system involving a possible decrease in genetic diversity. Our results suggested that variance in male mating success was linked to male-male competition and may imply distinct mating strategies
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Books on the topic "Calamine"

1

Galon. The art of converting red, or rosette, copper into brass by means of calamine stone: Its casting into slabs, its battery under the hammer and its drawing into wire. Eindhoven: De archaeologische pers, 1987.

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Calamity. Cambridge, MA: Candlewick Press, 1993.

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Calamity. London: Walker Bks., 1993.

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Calamity Jane. Minneapolis: Millbrook Press, 2007.

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Ellery QUEEN. Calamity town. Waterville, Me: Thorndike Press, 2002.

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Trump, Gary D. Calamity trail. Lincoln City, OR: High Country Publishing, 1989.

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QUEEN, Ellery. Calamity town. Plesantville, N.Y: ImPress, 2003.

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Calamity Jane. New York: Chelsea House, 2010.

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Miller, Wade. Calamity fair. New York: HarperPerennial, 1993.

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Champion's calamity. London: Hale, 1987.

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Book chapters on the topic "Calamine"

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Bährle-Rapp, Marina. "Calamine." In Springer Lexikon Kosmetik und Körperpflege, 81. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_1472.

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Upgren, Arthur. "Calamity!" In Night Has a Thousand Eyes, 163–69. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4899-6072-6_18.

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Butler, David. "Calamity Jane." In 100 Film Musicals, 34–35. London: British Film Institute, 2011. http://dx.doi.org/10.1007/978-1-84457-568-8_10.

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McLean, Hamish, and Jacqui Ewart. "Political Leadership in Calamity." In Political Leadership in Disaster and Crisis Communication and Management, 63–91. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42901-0_4.

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Kajiwara, Hazuki. "Japanese Animals in Calamity." In Surviving with Companion Animals in Japan, 3–31. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49328-8_1.

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Githens, Marianne. "Fleeing Calamity, Seeking Asylum." In Contested Voices, 63–85. New York: Palgrave Macmillan US, 2013. http://dx.doi.org/10.1057/9781137363503_4.

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Staupe-Delgado, Reidar. "Living with a slow calamity." In Disasters and Life in Anticipation of Slow Calamity, 60–75. London: Routledge, 2021. http://dx.doi.org/10.4324/9780429288135-7.

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Staupe-Delgado, Reidar. "Living in anticipation of impending calamity." In Disasters and Life in Anticipation of Slow Calamity, 89–111. London: Routledge, 2021. http://dx.doi.org/10.4324/9780429288135-10.

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Issar, Arie S. "Malthusian and Neo-Malthusian Prophecies of Calamity." In Progressive Development, 13–18. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-10640-8_3.

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Scorah, Rebecca. "Pessl, Marisha: Special Topics in Calamity Physics." In Kindlers Literatur Lexikon (KLL), 1–2. Stuttgart: J.B. Metzler, 2020. http://dx.doi.org/10.1007/978-3-476-05728-0_12312-1.

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Conference papers on the topic "Calamine"

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Hao, Sibo, Haochong Huang, Zili Zhang, Yuanyuan Ma, Zhiyuan Zheng, Weichong Tang, Hua Gao, and Lu Gao. "Characteristics of the calamine analyzed by terahertz time-domain technology." In CIOP100, edited by Yue Yang. SPIE, 2018. http://dx.doi.org/10.1117/12.2504745.

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Ann, Ling Chuo, Shahrom Mahmud, Siti Khadijah Mohd Bakhori, Amna Sirelkhatim, Dasmawati Mohamad, Habsah Hasan, Azman Seeni, and Rosliza Abdul Rahman. "Structural morphology of zinc oxide structures with antibacterial application of calamine lotion." In NATIONAL PHYSICS CONFERENCE 2014 (PERFIK 2014). AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4915219.

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Kumar, Anish, Arpita Naganur, Nikhil Horakeri, K. Sumant, and Shrinivas D. Desai. "Natural calamity assessment by innovative methods." In 2017 International Conference on Advances in Computing, Communications and Informatics (ICACCI). IEEE, 2017. http://dx.doi.org/10.1109/icacci.2017.8126049.

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Garg, Pooja, and Saurabh Kr Srivastava. "Life Detection System during Natural Calamity." In 2016 Second International Conference on Computational Intelligence & Communication Technology (CICT). IEEE, 2016. http://dx.doi.org/10.1109/cict.2016.125.

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Kolman, P., and L. Střelec. "Time minimizing transportation of calamity fallen timber." In 11TH INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2013: ICNAAM 2013. AIP, 2013. http://dx.doi.org/10.1063/1.4825888.

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Murulidhara, T. C., C. Kanagasabapthi, and Siva S. Yellampalli. "Unmanned vehicle to detect alive human during calamity." In 2017 International Conference on Electrical, Electronics, Communication, Computer, and Optimization Techniques (ICEECCOT). IEEE, 2017. http://dx.doi.org/10.1109/iceeccot.2017.8284644.

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STIRB, Adelin. "TECHNICAL SOLUTIONS TO AVOID CALAMITY EFFECTS ON FORESTRY ROADS." In 18th International Multidisciplinary Scientific GeoConference SGEM2018. Stef92 Technology, 2018. http://dx.doi.org/10.5593/sgem2018/3.2/s14.120.

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Joseph, Alvin, Vishal Parmar, and V. Bagyaveereswaran. "Design of Human Detection Robot for Natural calamity Rescue Operation." In 2019 Innovations in Power and Advanced Computing Technologies (i-PACT). IEEE, 2019. http://dx.doi.org/10.1109/i-pact44901.2019.8959959.

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Zhirong Jia, Wei Zhang, and Fushou Wang. "A study on grey calamity predicting model of lead-time." In 2008 IEEE International Conference on Service Operations and Logistics, and Informatics. IEEE, 2008. http://dx.doi.org/10.1109/soli.2008.4682804.

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Esther, S., and M. D. Devadas. "A calamity of a severe nature: case study – Chennai, India." In URBAN WATER 2016. Southampton UK: WIT Press, 2016. http://dx.doi.org/10.2495/uw160201.

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