To see the other types of publications on this topic, follow the link: Crown Hall.
Journal articles on the topic 'Crown Hall'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Crown Hall.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Santatecla Fayós, José, Vicente Mas Llorens, and Laura Lizondo Sevilla. "EL CROWN HALL. CONTEXTO Y PROYECTO." Proyecto, Progreso, Arquitectura, no. 1 (2010): 46–59. http://dx.doi.org/10.12795/ppa.2010.i1.03.
Full text
2
Sexton, Mark. "Restoration of Crown Hall." Heritage of Mies, no. 56 (2017): 64–71. http://dx.doi.org/10.52200/56.a.n8d72opn.
Full textAbstract:
This essay documents the research of restoration and modifications to Mies van der Rohe’s masterwork, Crown Hall, the heart of the Chicago campus of the Illinois Institute of Technology. Restoration was necessitated by 5 decades of use during which the building had fallen into major disrepair. During the restoration, practical and philosophical issues arose from the building’s landmark designation by regional and national authorities. The essay describes the forensic research that preceded design, investigation and selection of alternate materials modifications to the building envelope. This includes a detailed description of modifications balancing original materials and systems with current codes. The essay concludes by placing the restoration of Crown Hall in the larger context of preservation of modern buildings and the threat to these works which, unlike Crown Hall, are rarely protected by landmark designation.
3
Joseph, Rose Maria, Ashwin P. Rao, N. Srikant, YM Karuna, and Anupama P. Nayak. "Evaluation of Changes in the Occlusion and Occlusal Vertical Dimension in Children Following the Placement of Preformed Metal Crowns Using the Hall Technique." Journal of Clinical Pediatric Dentistry 44, no. 2 (January 1, 2020): 130–34. http://dx.doi.org/10.17796/1053-4625-44.2.12.
Full textAbstract:
Objectives: To evaluate the time taken and the mechanism through which the occlusion settles following the placement of a preformed metal crown (PMC) using the Hall technique. The secondary objective was to assess any temporo mandibular joint dysfunction (TMD) resulting from the Hall technique through a questionnaire. Study Design: 44 children fulfilling the inclusion criteria were evaluated for changes in overbite and occlusal vertical dimension (OVD) following the placement of preformed metal crowns (PMCs) using the Hall technique. The overbite and OVD measurements were taken before treatment, immediately post treatment, then at one, two, three and four weeks post treatment. After four weeks, a questionnaire recorded the occurrence of any signs or symptoms of TMD. Results: At the fourth week, the overbite measurement did not show a statistically significant difference (p value= 0.58) compared to baseline values indicating that the occlusion settled by the fourth week. By the third week the OVD values obtained did not show a significant difference compared to the baseline (p value= 0.42) indicating that the OVD had been restored. The questionnaire provided at the end of four weeks showed negative response for signs and symptoms of TMD in all the children. Conclusion: Any changes in occlusion following the placement of a Hall crown settles in four weeks. The OVD settles three weeks post placement implying that extrusion of teeth do not play a role in settling of the occlusion. The children do not develop any signs or symptoms of TMD post a Hall crown.
4
Frohburg, Jan. "Ellington under Glass." BAc Boletín Académico. Revista de investigación y arquitectura contemporánea 9 (November 4, 2019): 45–68. http://dx.doi.org/10.17979/bac.2019.9.0.4582.
Full textAbstract:
In November 1957 Mies van der Rohe’s Crown Hall at IIT broke with convention when it became the venue for a jazz concert by Duke Ellington and his orchestra. This extraordinary event is reconstructed based on personal recollections, campus newspapers and other archival material. In the context of architectural pedagogy Crown Hall is appreciated as a supreme expression of Mies’s architectural philosophy, both for its spatial openness and its spiritual character. Here, influences from Mies’s own evolution as an architect intersected with developments in modern music and performance art it inspired. Parallels are uncovered between Ellington’s jazz and Mies’s steel and glass architecture, both distinctly American idioms that characterise post-war modernity. The Ellington concert at Crown Hall presented the perfect synthesis of people, space, light, music and nature. At the same time it attested to the disruptive potential that exists in jazz and modern architecture alike.
5
Yu, Seong-Goo, Tae-Sung Jeong, and Shin Kim. "THE STAINLESS STEEL CROWN RESTORATION OF CARIOUS PRIMARY MOLARS WITH HALL TECHNIQUE : A CASE REPORT." JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY 39, no. 2 (May 31, 2012): 199–205. http://dx.doi.org/10.5933/jkapd.2012.39.2.199.
Full text
6
Altoukhi, Doua H., and Azza A. El-Housseiny. "Hall Technique for Carious Primary Molars: A Review of the Literature." Dentistry Journal 8, no. 1 (January 17, 2020): 11. http://dx.doi.org/10.3390/dj8010011.
Full textAbstract:
The high frequency of caries in primary teeth and its inadequate treatment are major public health problems during childhood. Nowadays, the Hall technique is one of the methods used for biological sealing in carious lesions in primary molars. Thus, the bacteria will be sealed from oral environment and the caries will be inactive. The objective of this article was to provide an updated search on the Hall technique description, indication, contraindication, advantages, concerns, success and failure, cost-effectiveness, acceptability, and preference in pediatric dentistry, and to compare the Hall technique with traditional crown preparation and conventional treatment options for carious primary molars. A discussion of the recently published articles on the Hall technique reveals that the Hall technique is considered a promising restorative option with high acceptability and longevity; with low failure rate for managing carious primary molars compared to conventional treatment modalities used in primary care settings. Furthermore, the survival rate of stainless steel crowns (SSCs) is considered high, whether provided using Hall technique or traditional preparation by a pediatric dentist. Thus, the Hall technique can be an effective addition to the clinician’s range of treatment options for carious primary molars. However, it should be chosen in restricted cases.
7
Shahidehpour, Mohammad, Wenlong Gong, Marc Lopata, Shay Bahramirad, Aleksi Paaso, and Calvin Zhang. "Transforming a National Historic Landmark Into a Green Nanogrid: The Case of Crown Hall." IEEE Electrification Magazine 8, no. 4 (December 2020): 20–35. http://dx.doi.org/10.1109/mele.2020.3026437.
Full text
8
Garcia-Requejo, Zaida. "Cuando menos fue más: la construcción del Crown Hall de Mies van der Rohe." Informes de la Construcción 73, no. 562 (July 12, 2021): e395. http://dx.doi.org/10.3989/ic.78401.
Full textAbstract:
El S. R. Crown Hall constituye el primer ejemplo construido de espacio universal de gran luz en la trayectoria del arquitecto Ludwig Mies van der Rohe. Destinado a albergar la escuela de arquitectura de la que era director, el proyecto debía además resumir el primero de los principios sobre los que se asentaba su docencia en el Illinois Institute of Technology: la estructura como factor arquitectónico, sus posibilidades y limitaciones. Este artículo profundiza en el proceso de desarrollo del proyecto de Mies, poniéndolo en contexto con su experiencia como docente en el IIT, buscando establecer posibles conexiones entre su arquitectura y sus enseñanzas. Para ello, se compara la solución estructural definitiva con uno de los proyectos supervisados por él dentro del programa de posgrado: la vivienda de Jacques Brownson. Dos estructuras de diferente escala, pero idéntica tipología, para el desarrollo de las cuales se contó con la colaboración del ingeniero estructural Frank Kornacker.
9
Taylor, Greig D. "A Change in Practice Protocol: Preformed Metal Crowns for Treating Non-Infected Carious Primary Molars in a General Practice Setting – A Service Evaluation." Primary Dental Journal 4, no. 4 (December 2015): 22–26. http://dx.doi.org/10.1308/205016815816682182.
Full textAbstract:
Restoring non-infected carious primary molars can pose a challenge to the general dental practitioner. This paper aims to assess the effect on primary caries management and patient experience in a general dental practice setting, when restoring non-infected carious primary molars using a Hall preformed metal crown (PMC).
10
Gilchrist, F., A. G. Morgan, M. Farman, and H. D. Rodd. "Impact of the Hall technique for preformed metal crown placement on undergraduate paediatric dentistry experience." European Journal of Dental Education 17, no. 1 (April 29, 2012): e10-e15. http://dx.doi.org/10.1111/j.1600-0579.2012.00751.x.
Full text
11
Peats, Richard. "Forty Hall, Enfield: Continuity and Innovation in a Carolean Gentry House." Architectural History 51 (2008): 33–62. http://dx.doi.org/10.1017/s0066622x00003014.
Full textAbstract:
Forty Hall, built in 1629 for Nicholas Rainton (1569–1646), is one of a group of Jacobean and Carolean suburban villas around London. This type of house has its antecedents in medieval secret houses and Tudor lodges, and was influenced by Italian Renaissance models. It provided a convenient escape from the bustle and squalor of the City, whilst being close enough to stay in touch with business or court, and so was popular with aristocrats and merchants alike.Rainton was one of the latter, a wealthy London merchant who imported fine textiles, principally satin and taffeta, from Florence and Genoa. He took an active part in the corporate and political life of the City, including serving as Alderman of Aldgate Ward from 1621, Sheriff of the Ward in 1622 and Lord Mayor in 1632–33. He was also master of the Haberdashers’ Company in 1622–23 and 1632–33. His religious sympathies were firmly Puritan, and he consistently sided with Parliament in its disputes with the Crown in events leading up to the Civil War.
12
Nair, Karthik, Nagarathna Chikkanarasaiah, Swetha Poovani, and Prafulla Thumati. "Digital occlusal analysis of vertical dimension and maximum intercuspal position after placement of stainless steel crown using hall technique in children." International Journal of Paediatric Dentistry 30, no. 6 (May 7, 2020): 805–15. http://dx.doi.org/10.1111/ipd.12647.
Full text
13
Antos, Joseph A., Roberta Parish, and Gordon D. Nigh. "Effects of neighbours on crown length of Abies lasiocarpa and Picea engelmannii in two old-growth stands in British Columbia." Canadian Journal of Forest Research 40, no. 4 (April 2010): 638–47. http://dx.doi.org/10.1139/x10-011.
Full textAbstract:
Crown length is a key aspect of vertical structure in multi-aged, multistrata, mixed-species forests. Crown length, defined as the distance from the tree top to the lowest live branch whorl, was determined for 3169 mapped trees ≥4.0 cm in diameter, in four 0.25 ha plots in each of two old-growth Abies lasiocarpa (Hook.) Nutt. – Picea engelmannii Parry ex Engelm. stands. We randomly selected half the trees to build models and half for validation. Crown length was modelled as a function of tree height, incorporating modifiers to account for neighbouring trees. The inclusion radius and height threshold for competition were 3 m and 70%, respectively. The addition of two modifiers significantly improved the model for A. lasiocarpa; crown length decreased as the number of neighbours increased and as the height of surrounding trees increased. In contrast, none of the modifiers significantly improved the model for P. engelmannii. Except at high levels of competition, Abies crowns were longer than those of Picea. However, both species in these forests have long crowns, typically three-quarters of the tree height and rarely less than half. The tightly programmed conical crown architecture of these species likely contributes to long crowns and to the limited effects of neighbours on crown length.
14
Edwards, Susan. "R v JAMES; R v KARIMI, COURT OF APPEAL, (CRIMINAL DIVISION) [2006] 1 ALL ER 759." Denning Law Journal 18, no. 1 (November 23, 2012): 181–90. http://dx.doi.org/10.5750/dlj.v18i1.312.
Full textAbstract:
Leslie Hall James was convicted, at Nottingham Crown Court on May 1 1979, of the murder of his wife, and sentenced to life imprisonment - a plea of provocation having failed. He had stabbed, punched and suffocated her following an argument. On the morning of the killing he had left work and gone to her home carrying a knife he borrowed from a colleague, he said, in order to cut a cork template. After killing her he went back to work returning again to the house during his lunch hour to change the locks. Later that afternoon he collected his daughter from school. The background to this killing was that Mrs James had left the matrimonial home in December 1978 and formed a relationship with another man (Mr Dutfield). The police had been called on several occasions to disturbances between Dutfield, the appellant and Mrs James.
15
Flores-Hernández, Cristóbal de J., Jorge Méndez-González, Félix de J. Sánchez-Pérez, Fátima M. Méndez-Encina, Óscar M. López-Díaz, and Pablito M. López-Serrano. "Allometric Equations for Predicting Agave lechuguilla Torr. Aboveground Biomass in Mexico." Forests 11, no. 7 (July 21, 2020): 784. http://dx.doi.org/10.3390/f11070784.
Full textAbstract:
Quantifying biomass is important for determining the carbon stores in land ecosystems. The objective of this study was to predict aboveground biomass (AGB) of Agave lechuguilla Torr., in the states of Coahuila (Coah), San Luis Potosí (SLP) and Zacatecas (Zac), Mexico. To quantify AGB, we applied the direct method, selecting and harvesting representative plants from 32 sampling sites. To predict AGB, the potential and the Schumacher–Hall equations were tested using the ordinary least squares method using the average crown diameter (Cd) and total plant height (Ht) as predictors. Selection of the best model was based on coefficient of determination (R2 adj.), standard error (Sxy), and the Akaike information criterion (AIC). Studentized residues, atypical observations, influential data, normality, variance homogeneity, and independence of errors were also analyzed. To validate the models, the statistic prediction error sum of squares (PRESS) was used. Moreover, dummy variables were included to define the existence of a global model. A total of 533 A. lechuguilla plants were sampled. The highest AGB was 8.17 kg; the plant heights varied from 3.50 cm to 118.00 cm. The Schumacher–Hall equation had the best statistics (R2 adj. = 0.77, Sxy = 0.418, PRESS = 102.25, AIC = 632.2), but the dummy variables revealed different populations of this species, that is, an equation for each state. Satisfying the regression model assumptions assures that the predictions of A. lechuguilla AGB are robust and efficient, and thus able to quantify carbon reserves of the arid and semiarid regions of Mexico.
16
Kaczorowski, Włodzimierz. "The 400th anniversary of the death of Stanisław Żółkiewski, Hetman and Great Crown Chancellor, Senator of the Polish-Lithuanian Commonwealth." Opolskie Studia Administracyjno-Prawne 18, no. 4 (February 23, 2021): 153–64. http://dx.doi.org/10.25167/osap.3438.
Full textAbstract:
In the period of Nobles’ Democracy, the art of war of the Polish-Lithuanian Commonwealth attained the highest level, making a real phenomenon in the then Europe. It owed its development, among others, to outstanding Hetmans of the Crown and Lithuania, victors in many battles, leaders surrounded by fame and admiration, genuine patriots. In the hall of fame of Grand Hetmans, Field Hetmans and Lithuanian Hetmans, a most prominent place is taken by Stanisław Żółkiewski (1747-1620).On 13 June 2019, Members of Parliament passed an occasional resolution dedicating the year 2020 to Stanisław Żółkiewski. The resolution reads, among others, “Stanisław Żółkiewski always put the good of Poland above his own benefits, stood faithfully on the side of successive kings, also in internal conflicts, despite the critical opinion of Sigismund III’s politics. He advocated religious tolerance and easing conflicts. […] The Seym of the Republic of Poland, upon acknowledging the great contributions of Stanisław Żółkiewski,creator of the victory of Klushino and a conqueror of Moscow, tenacious defender of the Mother Country for which he sacrificed his life, establishes the year 2020, which marks the occasion of the 400th anniversary of his death, the Year of Hetman Stanisław Żółkiewski.”
17
Groot, Arthur. "A model to estimate light interception by tree crowns, applied to black spruce." Canadian Journal of Forest Research 34, no. 4 (April 1, 2004): 788–99. http://dx.doi.org/10.1139/x03-242.
Full textAbstract:
CORONA is a spatially explicit model designed to efficiently estimate the quantity of shortwave radiation intercepted by individual tree crowns. Radiation interception is determined from intersections of light rays with tree crowns for rays originating throughout the sky hemisphere. CORONA comprises a flexible, asymmetric description of crowns, a computationally efficient ray-tracing procedure, numerical solution of ray × crown intersections, and several alternative within-crown light interception functions. The interception functions were calibrated and evaluated in two plots located in black spruce (Picea mariana (Mill.) BSP) stands, where tree positions and crowns were mapped. An interception function using only the number of intercepting crowns (i.e., a hits function) generally resulted in better agreement between modelled and observed light levels than an interception function using the total path length through crowns. There was some evidence that transmission was greater in parts of crowns within low-light-level environments. This effect can be incorporated into an interception function for more realistic modelling of interception. Errors in crown description are likely the main cause of discrepancies between modelled and observed light levels on a half-hourly basis. The agreement between modelled and observed light levels on a daily basis indicates that CORONA can provide useful estimates of light interception by tree crowns.
18
Brower, James C. "Some disparid crinoids from the Upper Ordovician (Shermanian) Walcott-Rust quarry of New York." Journal of Paleontology 82, no. 1 (January 2008): 57–77. http://dx.doi.org/10.1666/06-077.1.
Full textAbstract:
locrinus trentonensis Walcott, 1883 is characterized by the widest food grooves and the largest covering plates of any of the Walcott-Rust Quarry crinoids, which indicates that the animal captured relatively large food particles with large and widely separated tubefeet. Although iocrinids are generally considered as primitive disparids, their anal sac is unique. the holdfasts of I. trentonensis consist of distal stem coils that are tightly wrapped around the columns of other crinoids. the relatively long column of Ectenocrinus simplex (Hall, 1847) was attached to a wide range of shelly substrates by a small irregular and somewhat lobate holdfast. Ectenocrinids ate much smaller food items that were collected by smaller and more tightly packed tubefeet. the ontogeny of E. simplex illustrates the differences between the food gathering systems of conspecific crinoids from shallow and deep water habitats. the calceocrinid Calceocrinus barrandii Walcott, 1883 lived with its long stem forming a runner along the seafloor. the crown was movably hinged to the basal circlet and the stem. Moderately wide food grooves were probably present.
19
Patel, Ayesha, Emma Ray-Chaudhuri, and Sanjeev Sood. "Fitting hall crowns." Dental Update 43, no. 3 (April 2, 2016): 296–97. http://dx.doi.org/10.12968/denu.2016.43.3.296.
Full text
20
SANO, Junichi. "COLLINEARITY, SIMILARITY AND EQUILATERAL TRAIANGLES IN THE OPEN PLANS OF I.I.T.'S CROWN HALL, THE RON BACARDI COMPANY ADMINISTRATION BUILDING AND THE NEW NATIONAL GALLERY BY MIES VAN DER ROHE." Journal of Architecture and Planning (Transactions of AIJ) 68, no. 565 (2003): 363–71. http://dx.doi.org/10.3130/aija.68.363_2.
Full text
21
Brower, James C. "Hybocrinid and disparid crinoids from the Middle Ordovician (Galena Group, Dunleith Formation) of northern Iowa and southern Minnesota." Journal of Paleontology 66, no. 6 (November 1992): 973–93. http://dx.doi.org/10.1017/s0022336000021053.
Full textAbstract:
Four hybocrinid and disparid crinoids from the Middle Ordovician Dunleith Formation (Galena Group) of northern Iowa and southern Minnesota are described: Hybocrinus conicus Billings, Ohiocrinus levorsoni n. sp., Caleidocrinus (Huxleyocrinus) gerki n. sp., and Ectenocrinus simplex (Hall). The first three taxa are rare. Ectenocrinus simplex is an abundant and protean form ranging from the Shermanian to the Maysville and from the Appalachians to the Midcontinent. One Middle Ordovician specimen from the Dunleith is a complete small adult with stem and a lichenocrinid holdfast. The column was largely upright with the crown located about 25 cm above the seafloor. The Middle Ordovician crinoids differ somewhat from the later Cincinnatian material where only young E. simplex exhibit lichenocrinid holdfasts. Older crinoids became detached and were eleutherozoic well before the column was 25 cm long. Thus, the Cincinnatian individuals lost the attachment device earlier during ontogeny than their ancestors in the Middle Ordovician. Unlike most associated crinoids, E. simplex formed a roughly conical filtration net. The arms of E. simplex are extensively branched. Ten main arms bear unbranched ramules on alternate brachials, and the arm structure converges on the pinnulate pattern. Narrow food grooves and short covering plates are present. Analogies with living crinoids indicate that small food particles were caught by small and close-spaced tube-feet. The formation of new plates and ramules at the arm tips increases the size of the food-gathering system throughout ontogeny. The food-gathering capacity comprises the number of food-catching tube-feet times the width of the food grooves, and it measures the number and size of food particles that can be caught. Both size and capacity of the food-gathering system are positively allometric compared to crown volume and the amount of tissue that must be nourished. This is mainly caused by the addition of new ramules at the arm tips, which generates an exponentially increasing plate supply rate. Examination of numerous specimens from various geographic and stratigraphic horizons with multivariate statistics shows that the species was homogeneous throughout its range aside from the differences in living habits mentioned above.
22
Sha'aban, Ahmed M., Gihan A. El Naggar, Rasha Nabil, Mohamed A. Rashad, and Yara S. Attia. "Wear assessment of current aesthetic crowns compared with human enamel after two finishing procedures: In vitro study." F1000Research 8 (July 17, 2019): 1115. http://dx.doi.org/10.12688/f1000research.18653.1.
Full textAbstract:
Background: Surfaces of ceramic crowns are modified several times before being exposed to wear in the oral cavity. Grinding and different finishing procedures may be associated with teeth wear due to increased surface roughness. Limited data is available with regard to the effect of polishing procedures on the surface roughness and wear behavior of ceramic crowns. This study was conducted to assess the influence of polished and polished-ground-repolished surface finish on the roughness and wear performance of three ceramic crowns. Methods: 36 natural 1st molar teeth were prepared using a CNC milling machine and classified into three groups (n=12/group): zirconia, E-max and hybrid ceramic (VITA ENAMIC) crowns. Each group was classified into two subgroups (n=6/subgroup): polished and polished-ground-repolished crowns. Natural molar teeth served as an unrestored control group (n=6). All samples were loaded into a chewing simulator for 100,000 cycles and subjected to 600 thermo-cycles in temperature changes to simulate changes in intraoral temperature. Natural maxillary 1st premolar teeth were collected and only buccal half (cusp) of sectioned tooth was used as antagonists. A profilometer was used to detect the roughness before and after masticatory cycles. The occlusal surface was analysed using a scanning electron microscope (SEM). Results: The E-max crown group had the highest mean surface roughness value (0.267µm) followed by VITA ENAMIC crown group (0.266 µm), while the lowest mean surface roughness value recorded for zirconia crown (0.257µm). The difference between these means was not significant. The polished-ground–repolished group had a higher mean surface roughness (0.266 µm) compared with the polished group (0.260 µm), which was not significantly different. Conclusions: All tested ceramic crowns showed surface roughness with values within acceptable clinical parameters (~0.2 µm). Additionally, intraoral polishing procedures could be considered a reliable technique for smoothing of zircona, E.max and VITA ENAMIC crowns after occlusal adjustment.
23
Questier, Michael. "Sermons, Separatists, and Succession Politics in Late Elizabethan England." Journal of British Studies 52, no. 2 (April 2013): 290–316. http://dx.doi.org/10.1017/jbr.2013.1.
Full textAbstract:
AbstractIn late 1599 the population of York was able to witness a fairly extraordinary sight. In York Castle, the Catholic prisoners of conscience, as they saw themselves (though others regarded them as dangerous political dissidents), were being compelled to listen, once a week, to a Protestant sermon. These sermons were preached at them by a slate of godly ministers. This exercise was something the prisoners actively contested by murmuring, blocking their ears, shouting, and attempting to rush out of the hall. The prisoners' antics provoked the authorities into increasingly coercive measures to make them hear the Word of God. This outwardly rather ridiculous and unseemly charade went on, week after week, for nearly a year, at which point the whole business was abandoned by the lord president, Lord Burghley, as a waste of time. However, by decoding the extant manuscript narrative that we have of the sermon series and by looking at who was involved in this business and why, and what political messages were being sent during the course of it, we can say something about the popular politics of late Elizabethan England. In particular, we can comment on the strategies adopted by those who were anticipating the moment, surely not far off, when Tudor power would be extinguished and Elizabeth's crown would pass to her successor.
24
Smith, Kevin T., and Walter C. Shortle. "Radial growth of hardwoods following the 1998 ice storm in New Hampshire and Maine." Canadian Journal of Forest Research 33, no. 2 (February 1, 2003): 325–29. http://dx.doi.org/10.1139/x02-185.
Full textAbstract:
Ice storms and resulting injury to tree crowns occur frequently in North America. Reaction of land managers to injury caused by the regional ice storm of January 1998 had the potential to accelerate the harvesting of northern hardwoods due to concern about the future loss of wood production by injured trees. To assess the effect of this storm on radial stem growth, increment cores were collected from northern hardwood trees categorized by crown injury classes. For a total of 347 surviving canopy dominant and subdominant trees, a radial growth index was calculated (mean annual increment for 19982000 divided by the mean annual increment for 19951997). Sugar maple (Acer saccharum Marsh.), yellow birch (Betula alleghaniensis Britt.), white ash (Fraxinus americana L.), and red maple (Acer rubrum L.) categorized in injury class A (crown loss of less than one-half) had mean growth index values of approximately 1.0, indicating no loss of mean radial growth after 3 years. For injury class B (crown loss of one-half to three-quarters) and class C (crown loss greater than three-quarters), growth index values significantly decreased for sugar maple, yellow birch, and red maple. For white ash, growth index values of classes B and C were not significantly different from those of class A trees. Growth index values of A. saccharum and A. rubrum in injury class C were the lowest of those measured. These results indicated that the severity of growth loss due to crown injury depends on tree species and crown replacement as well as the extent of crown loss.
25
Rolska, Irena. "Fundacje sakralne wojewody wołyńskiego Seweryna Józefa Rzewuskiego (po 1694–1755)." Artifex Novus, no. 3 (October 1, 2019): 76–95. http://dx.doi.org/10.21697/an.7064.
Full textAbstract:
SUMMARY
Seweryn Józef Rzewuski was the son of Stanisław Mateusz Rzewuski (1662–1728), grand crown hetman and Belz voivode, and Ludwika Eleonora Kunicka (coat of arms: Bończa; d. 1749). He was the older brother of Wacław Piotr Rzewuski (1706–1779), grand crown hetman and castellan of Cracow. The main house of Seweryn Józef and Antonia from the Potocki Rzewuski was the castle in Olesko. Before 1745 the voivode carried out renovation works at the castle, decorating it with stuccos and sculptures. The main building Rzewuski founded was the church and Capuchin monastery located below the castle. The single-nave church has a double-span nave enclosed by two rows of lower, rectangular-shaped side chapels linked by narrow passages. The church has an austere, flat facade with one portal on the axis, typical for Polish Capuchin architecture. Monastery buildings were located on the northern side of the church. The wings of the monastery surrounded a rectangular inner viridary, uncommon for Capuchin monasteries. The monastery in Olesko was one of the most magnificent Polish Capuchin monasteries. Seweryn Józef and Antonina Rzewuski revered the blessed John of Dukla. This was manifested by their decision to found the building of a column dedicated to Blessed John of Dukla in Lviv in 1736. The Rzewuski kept good relations with the Greek Catholics from Chełm and the Chełm starosty. Rzewuski founded baroque side-altars for the orthodox church in Kanie, which are now in the local parish church. He was also one of the initiators of the coronation of the icon of Our Lady of Chełm. Seweryn Józef Rzewuski inherited Łęczna (1737), and as the city’s owner he began renovating the parish church of Saint Mary Magdalene, rebuilding the burned city hall, two market squares and establishing a third one. Rzewuski founded two new, baroque altars for the church. Two side-altars, the pulpit, baptismal font and two altars in side chapels remain until this day. The remains of the programme, that can be found on the altars, indicate a close link between the passion and eucharistic worship. In 1745 Seweryn Józef finished building and decorating a small, single-navechurch in Łuszczów. All aforementioned buildings and art founded by Seweryn Józef Rzewuski, except from the column dedicated to the blessed John of Dukla in Lviv, were located on territories which belonged to the voivode.
26
Zuidervaart, Huib, and Tiemen Cocquyt. "The Early Development of the Achromatic Telescope Revisited." Nuncius 33, no. 2 (June 26, 2018): 265–344. http://dx.doi.org/10.1163/18253911-03302004.
Full textAbstract:
Abstract The emergence in the Netherlands of a flint forward achromatic telescope with a provenance going back to the English optician William Eastland (1702–1787), known for his opposition to the Dollond patent on the achromatic telescope, prompted us to review the early history of the achromatic telescope, especially with regard to Eastland’s role and testimony during the Dollond lawsuit. An investigation of this Eastland-related telescope revealed that the configuration of its doublet lens differed from the design Eastland had sketched in court. However, the close fitting of the two lenses constitutes a plausible next step in the improvement of the achromat. This configuration appeared to be identical in design to the one used in the earliest known flint-forward configuration made by the Dollond firm. An analysis of the spherical aberration of other early designs of the achromat, using the theory only available at the time, indicates that probably several designs steps were deliberately taken. To explain the developments that emerge from the presented curvatures, we propose a sequence of designs for the configuration of doublet lenses. Starting with the presumed Moor Hall design of the 1730s, we discuss the flint forward designs of the early achromats, as well as the crown forward designs of the later period. Most English achromatic telescopes were the result of a process of ‘trial and error,’ designed almost with no influence from the theory developed by several European scholars since 1760. However, in France – and from 1774 onwards in Holland – dioptrical theory was the leading one for most of the optical practitioners.
27
Kainer, Karen A., Lúcia H. O. Wadt, Daisy A. P. Gomes-Silva, and Marinela Capanu. "Liana loads and their association with Bertholletia excelsa fruit and nut production, diameter growth and crown attributes." Journal of Tropical Ecology 22, no. 2 (February 1, 2006): 147–54. http://dx.doi.org/10.1017/s0266467405002981.
Full textAbstract:
We investigated the association between lianas and Bertholletia excelsa (Brazil nut), a long-lived, emergent tree of significant ecological and economic importance in Amazonia. Our objectives were: (1) to determine the relationship between crown liana load and liana number, basal area, and origin in relation to the B. excelsa host; and (2) to determine the relationship between liana load and B. excelsa fruit and nut production, diameter growth, and crown form, position and area. One hundred and forty trees (≥50 cm dbh) were selected with representatives of 10 diameter classes and four liana load categories. To quantify fruit and nut production, fruit counts and nut fresh weights per tree were measured in 2002 and 2003, and annual diameter growth was quantified using dendrometer bands. Trees with lianas produced significantly fewer fruits and had reduced nut fresh weights than liana-free trees. Trees with the most extensive liana loads (>75% crown coverage) were 10.2 times more likely to have crown forms categorized as less than half-crowns or few branches than trees with reduced liana loads. No statistically significant relationship was found between liana load and tree diameter growth. Results suggest that liana cutting might increase B. excelsa fecundity and commercial nut yields.
28
Sussman, Adrienne F., Renee Robinette Ha, and Hilary E. Henry. "Attitudes, knowledge and practices affecting the Critically Endangered Mariana crow Corvus kubaryi and its conservation on Rota, Mariana Islands." Oryx 49, no. 3 (January 22, 2015): 542–49. http://dx.doi.org/10.1017/s0030605313000884.
Full textAbstract:
AbstractThe population of the Critically Endangered Mariana crow Corvus kubaryi on the island of Rota, Commonwealth of the Northern Marianas Islands, has decreased dramatically in recent years. It is unclear to what extent negative practices by people, such as inappropriate land use or persecution of crows, have contributed to this decline. We conducted a public opinion survey to document ongoing practices towards the crows on Rota, to assess residents’ knowledge of and attitudes towards the birds, and to gauge potential responses to a government-instituted land incentive programme. Enumerators administered surveys in person during August 2011. Most of the 573 respondents were native Chamorro residents (75%) and more than half were landowners (62%). A majority of respondents (72%) considered environmental issues ‘very important’ and 76% knew of the Mariana crow's Critically Endangered status. Fewer respondents (55%) expressed concern about the bird going extinct. A number of respondents condoned shooting and chasing crows (17 and 52%, respectively), suggesting that residents may be harassing the birds. Chamorro landowners on the island were more likely to have negative attitudes towards the crows and to know people who persecute the crows than other island residents. Education was positively correlated with knowledge and concern about the crow and environmental issues, suggesting that new educational programmes on Rota may help improve residents’ attitudes towards the species. In addition, we recommend a revision of current land-use regulations and implementation of a monetary compensation programme for owners of crow nesting habitat to improve landowners’ attitudes and practices.
29
Tamás, Horogszegi. "Egy elfeledett Szent István király-falképciklus. •." Művészettörténeti Értesítő 69, no. 1 (December 23, 2020): 71–102. http://dx.doi.org/10.1556/080.2020.00005.
Full textAbstract:
Tradition had it that the rectangular Romanesque hall with a central column in the royal and later archiepiscopal palace on Castle Hill in Esztergom was the birthplace of King Saint Stephen, although it was already clear in the 19th century that this part of the building dated from after the 11th century. Nevertheless, in view of the salient role of the castle in the cult of Saint Stephen, the prince primate and archbishop of Esztergom (1867–1891) János Simor (1813–1891) had the Romanesque room converted into a chapel in 1873–74, a thousand years after the birth of the state and church founder king. The reconstruction was planned by József Lippert, the chief architect of the prince primate who planned in this capacity, among other things, the transformation of the interior of the cathedral and the construction of its vestibule, the primate’s palace, and the purist reconstruction of Pozsony cathedral. The transformation of the hall with the central column included a new aperture, walling up of a niche, erection of an altar, and embellishing of the walls and vault with neo-Romanesque frescoes imitating the Byzantine style painted by the brothers Karl and Franz Xaver Jobst (fig. 3). The completed chapel became a neo-Romanesque Gesamtkunswerk down to the smallest detail, a venue of cult and memory.The decisive part of the painted decoration was the cycle of the salient episodes in St Stephen’s life on the vault arches: 1. Apparition of St Stephen protomartyr to Sarolt, wife of prince Géza (fig. 7). 2. The baptism of Vajk (fig. 11). 3. Bishop Astrick shows the crown brought from Rome to St Stephen (fig. 15). 6. Offering of the country to God (fig. 23). The paper reviews the iconographic antecedents of the scenes and the respective source texts, mentioning so-far unpublished works (figs. 13, 22). In addition to several other findings, it could be concluded that unlike in the period from the 17th to the mid-19th century when the depictions of King St Stephen were imbued with currently topical political implications, the images of the Esztergom cycle are free from such readings. The painters of the frescoes ordered by archbishop Simor mainly used recognized schemes and panels aligning themselves with the iconographic tradition, and therefore the novelty of the decoration which contemporary accounts emphasized must have been their neo-Byzantine style. A few decades later, however, this style must have appeared obsolete, nor did it have followers in its time, either. Apart from the demonstration of iconographic motifs, the direct models of the scenes cannot be determined even for such an extremely rare theme as Sarolt’s dream. That is at the same time proof of the invention of the painters and that is what ranges their work among the important achievements of post-Compromise painting: the ingenious use of motifs of mostly familiar scenes (identified by captions as well) and their arrangement in a new composition in the chosen or required style, with the prudent use of the semi-circular shape of the picture field when need be. It is important to note that no other picture cycle was created of St Stephen’s life in the second half of the 19th century. Moreover, some of the scenes have demonstrable linkage to stations in the life path of archbishop Simor, which must have influenced the finalization of the programme.During the archaeological excavations and reconstruction on Castle Hill in 1934–1938 the historicist elements of the hall with a central column were removed (fig. 4). Until how, research thought the painted decoration by the Jobst brothers had perished and were only known in reproduction. However, it must have been removed by Mauro Pellicioli or an assistant of his who had been invited to Hungary from Milan by Tibor Gerevich. I chanced upon the removed frescoes in a remote storeroom of Esztergom cathedral in 2011 with Veronika Nagy.
30
Tamás, Horogszegi. "Egy elfeledett Szent István király-falképciklus. •." Művészettörténeti Értesítő 69, no. 1 (December 23, 2020): 71–102. http://dx.doi.org/10.1556/080.2020.00005.
Full textAbstract:
Tradition had it that the rectangular Romanesque hall with a central column in the royal and later archiepiscopal palace on Castle Hill in Esztergom was the birthplace of King Saint Stephen, although it was already clear in the 19th century that this part of the building dated from after the 11th century. Nevertheless, in view of the salient role of the castle in the cult of Saint Stephen, the prince primate and archbishop of Esztergom (1867–1891) János Simor (1813–1891) had the Romanesque room converted into a chapel in 1873–74, a thousand years after the birth of the state and church founder king. The reconstruction was planned by József Lippert, the chief architect of the prince primate who planned in this capacity, among other things, the transformation of the interior of the cathedral and the construction of its vestibule, the primate’s palace, and the purist reconstruction of Pozsony cathedral. The transformation of the hall with the central column included a new aperture, walling up of a niche, erection of an altar, and embellishing of the walls and vault with neo-Romanesque frescoes imitating the Byzantine style painted by the brothers Karl and Franz Xaver Jobst (fig. 3). The completed chapel became a neo-Romanesque Gesamtkunswerk down to the smallest detail, a venue of cult and memory.The decisive part of the painted decoration was the cycle of the salient episodes in St Stephen’s life on the vault arches: 1. Apparition of St Stephen protomartyr to Sarolt, wife of prince Géza (fig. 7). 2. The baptism of Vajk (fig. 11). 3. Bishop Astrick shows the crown brought from Rome to St Stephen (fig. 15). 6. Offering of the country to God (fig. 23). The paper reviews the iconographic antecedents of the scenes and the respective source texts, mentioning so-far unpublished works (figs. 13, 22). In addition to several other findings, it could be concluded that unlike in the period from the 17th to the mid-19th century when the depictions of King St Stephen were imbued with currently topical political implications, the images of the Esztergom cycle are free from such readings. The painters of the frescoes ordered by archbishop Simor mainly used recognized schemes and panels aligning themselves with the iconographic tradition, and therefore the novelty of the decoration which contemporary accounts emphasized must have been their neo-Byzantine style. A few decades later, however, this style must have appeared obsolete, nor did it have followers in its time, either. Apart from the demonstration of iconographic motifs, the direct models of the scenes cannot be determined even for such an extremely rare theme as Sarolt’s dream. That is at the same time proof of the invention of the painters and that is what ranges their work among the important achievements of post-Compromise painting: the ingenious use of motifs of mostly familiar scenes (identified by captions as well) and their arrangement in a new composition in the chosen or required style, with the prudent use of the semi-circular shape of the picture field when need be. It is important to note that no other picture cycle was created of St Stephen’s life in the second half of the 19th century. Moreover, some of the scenes have demonstrable linkage to stations in the life path of archbishop Simor, which must have influenced the finalization of the programme.During the archaeological excavations and reconstruction on Castle Hill in 1934–1938 the historicist elements of the hall with a central column were removed (fig. 4). Until how, research thought the painted decoration by the Jobst brothers had perished and were only known in reproduction. However, it must have been removed by Mauro Pellicioli or an assistant of his who had been invited to Hungary from Milan by Tibor Gerevich. I chanced upon the removed frescoes in a remote storeroom of Esztergom cathedral in 2011 with Veronika Nagy.
31
Kupka, I. "Growth reaction of young wild cherry (Prunus aviumL.) trees to pruning." Journal of Forest Science 53, No. 12 (January 7, 2008): 555–60. http://dx.doi.org/10.17221/2165-jfs.
Full textAbstract:
A large crown is one of the most important prerequisites for the good growth of a tree and therefore the crown could be called an engine of increment. The care for a large crown brings a decrease in the bole value at the same time as it makes large branches and later knots on it. Pruning is a possible solution of these two contradictions. Young wild cherry trees were pruned in three different ways: (<I>i</I>) half of the crown left, (<I>ii</I>) one quarter of the crown left and (<I>iii</I>) control, i.e. no pruning. The results show that height growth was not influenced by pruning while diameter growth was significantly affected. The crown reduction to a half means 10% less in diameter growth within a 5-year period after pruning. The crown reduction to one quarter of the crown means only two thirds of ‘full’ diameter growth on the control plot. The data suggest that the pruning of young wild cherry trees should be done moderately (more than a half of the crown should be left) and pruning should be done when the bottom part of the crown is in the shadow zone of the crown layer, not earlier.
32
Tajima, Yusuke, and Takashi Nagatani. "Scaling behavior of crowd flow outside a hall." Physica A: Statistical Mechanics and its Applications 292, no. 1-4 (March 2001): 545–54. http://dx.doi.org/10.1016/s0378-4371(00)00630-0.
Full text
33
Warner, Claire, and Martyn Waddington. "Preformed metal crowns placed using the Hall Technique." Dental Nursing 12, no. 3 (March 2, 2016): 134–38. http://dx.doi.org/10.12968/denn.2016.12.3.134.
Full text
34
Gómez-Valcárcel Gómez, Daniel. "Biuer... Chicago! Un argumento surrealista para el McCormick Tribune Campus Center." Cuaderno de Notas, no. 19 (July 31, 2018): 85. http://dx.doi.org/10.20868/cn.2018.3819.
Full textAbstract:
Resumen Se tiende a considerar el McCormick Tribune Campus Center bajo una filiación pop. Sin descartar la evidencia del influjo de Robet Venturi, el artículo argumenta la raigambre surrealista, velada por su colorista y desenfadada retórica. Esta hipótesis no sería incoherente con el aprecio de Rem Koolhaas por las técnicas surrealistas (patentes en Delirious New York) y la apreciación de rasgos surrealistas en su obra temprana por parte de terceros. Se analizan, sobre aspectos concretos del edificio terminado y sobre documentos de desarrollo del proyecto, mecanismos destinados a producir efectos similares a los que los surrealistas perseguían con sus prácticas: la intensificación de la realidad más allá de la pura racionalidad. También sería coherente con el aliento de crítica epistémica que recibe el proyecto de las bases del concurso que le dio lugar, y que motivó la respuesta de Koolhaas mediante el binomio que forman el edificio y su panfleto coetáneo, Junkspace.AbstractUnder its casual and colorful appearance, the McCormick Tribune Campus Center built in 2003 at the Chicago IIT campus by Rem Koolhaas constitutes a perplexing -hard to grasp conceptually- architectural piece. The commission origin was an international competition whose bases demanded a building “equal in stature to Mies van der Rohe’s S. R. Crown Hall” that “will express the architecture of our time”. According to Koolhaas, the building, in which he subverts all kind of disciplinary categories that shape Mies’s work, is a built response to the condition of our time described in Junkspace, a text written in parallel to its construction proccess. The article argues that a surreal halo shines under its pop aesthetic. Being its significance reinforced by Koolhaas’ clear appreciation of the findings of the Surrealists -among whom, especially, Dalí’s paranoid-critical method-, it may constitute a clue of deeper arguments that, steeping the strategy and methodology of the project, contribute to articulate the construct with which its author gives response to the competition intellectual demands.
35
Karadimos, D. A., G. S. Karaoglanidis, and K. Klonari. "First Report of Charcoal Rot of Sugar Beet Caused by Macrophomina phaseolina in Greece." Plant Disease 86, no. 9 (September 2002): 1051. http://dx.doi.org/10.1094/pdis.2002.86.9.1051d.
Full textAbstract:
During the summer of 2000 in the Amyndeon area of northern Greece, sugar beet (Beta vulgaris L.) roots with rot symptoms were observed in many fields. Initially, the plants wilted, and leaves soon turned brown and died. Diseased plants appeared in patches in the field. Brown-black lesions were observed in the external part of the root crown while yellow-mustard colored lesions occurred internally. In advanced stages of decay, masses of sclerotia formed in rotted cavities and roots became mummified. Macrophomina phaseolina (Tassi) Goid. (1) was isolated on potato dextrose agar (PDA) from 30 rotted roots collected in five fields. Cultures produced dark multi-septate mycelium and sclerotia, which were black, smooth, spherical to irregular in shape, and varied in size from 100 μm to 1mm in diameter. Five isolates were evaluated for pathogenicity on surface-sterilized 16-week-old sugar beet roots (cv. Rizor) by placing a 5-mm-diameter PDA plug of actively growing mycelium in wounds made with a sterile knife. Sterile PDA plugs were placed in wounds made in control beet roots. Ten roots were inoculated per isolate. Roots were kept at 25°C in the dark for 10 days. Extensive decay of inoculated roots developed, similar to decay observed in the field, and M. phaseolina was reisolated from rotted tissue. Control roots showed no decay. This pathogen has been previously reported as a root rot pathogen of sugar beet in California, India, and countries of the former USSR. Charcoal rot is of minor economic importance since M. phaseolina attacks mainly weakened plants under conditions of high temperature (2). To our knowledge, this is the first report of charcoal root rot of sugar beet in Greece. References: (1) Anonymous. Macrophomina phaseolina. No. 275 in: Descriptions of Plant Pathogenic Fungi and Bacteria. CMI, Kew, Surrey, UK, 1970. (2) J. E. Duffus and E. G. Ruppel. Diseases. Page 347 in: The Sugar Beet Crop. Science into Practice. D. A. Cooke and R. K. Scott eds. Chapman and Hall, NY, 1993.
36
Bilous, Natalia. "Testament as a Source of Researching Urban Literacy in the Volynia Region of the 17th Century." Kyivan Academy, no. 17 (March 10, 2021): 39–67. http://dx.doi.org/10.18523/1995-025x.2020.17.39-67.
Full textAbstract:
Ukrainian historiography has not properly determined the problems of Volynian cities’ secretariats and development of burghers’ literacy in particular. The goal of the article is to research some aspects of these problems by the means of testaments; specifically, to highlight the role of city secretaries in the process of writing down citizens’ testaments and facts that testify about development of urban literacy in cities of Volynia of the 17th century.The municipal registry record analysis implies that executing posthumous inventories, settlement deeds, and especially testaments influenced the development of pragmatic urban literacy. Among the analyzed group of testators, several people wrote down their testaments by themselves. Then city clerks had no option but to accept prepared documents post factum for saving records in town council registers, which in some extent is evidence of the literacy culture development in the Volynian cities in the early modern times. However, the predominant majority of testators were illiterate and in order to approve their act of last will, they signed it with a criss-cross (“X”); the conclusion of the act required specialized assistance from municipal clerks.At those times, testaments were normally written down in the house of a dying person in the presence of municipal officers who provided the document according to an appropriate form and legal validity, and eye-witnesses; or it could be written down at the city hall before the court. City secretaries had a significant role in this procedure, but their level of proficiency was not always appropriate.As in the majority of Central-East European cities of that time, in Volynian cities substantial amounts of acts of last will were given by verbal directions and were not recorded in municipal registers. This fact explains such a small amount of saved documents in comparison with Western European cities. They were not set aside into a separate register series as in bigger crown cities, but the acts were recorded into the current municipal registers in response to citizens’ demand.
37
Jones, RM, and GA Bunch. "The effect of stocking rate on the population dynamics of siratro in siratro (Macroptilium atropurpureum)-setaria (Setaria sphacelata) pastures in south-east Queensland. I. Survival of plants and stolons." Australian Journal of Agricultural Research 39, no. 2 (1988): 209. http://dx.doi.org/10.1071/ar9880209.
Full textAbstract:
The persistence of plants and stolons of the tropical forage legume Siratro (Macroptilium utropurpureurn) was measured in Siratro-setaria (Seluriu sphacelala) pastures at Samford, south-east Queensland. The pastures were sown in 1968. Three pastures were set stocked and continuously grazed from 1969 to 1985 at 1.1, 1.7, and 2.3 heifers ha-1. A fourth pasture was stocked at 3.0 heifers ha-1 from 1969 to 1973 and at 2.0 heifers ha-1 thereafter. In 1972 the density of Siratro crowns was similar in the four pastures, although crowns were smaller and stolon density was considerably less at the highest stocking rate. Persistence of plants at a moderate stocking rate (1.7 heifers ha-1) and a heavy stocking rate (3.0/2.0 heifers ha-1) was followed in fixed quadrats from 1971 to 1986. Stocking rate had a marked effect on the recruitment of new crowns and on crown survival. Total numbers gradually declined at the heavy stocking rate and no plants were recorded after 1982. This decline was associated with poor survival of plants (half life of only 6 months) and with reduced input of new plants, particularly after 1980. In contrast, Siratro density at 1.7 heifers ha-1 remained constant from 1971 to 1978. and then increased to 1982. This was associated with a longer half life of plants (c. 20 months) and sustained input of new crowns. However, there was a drastic decline in Siratro density from 1982 to 1985. Siratro was clearly unable to persist under heavy grazing, but there was no single reason why it suddenly declined in a moderately grazed pasture where it had persisted for 14 years. However, the advent of Siratro rust, together with a run of years with below average summer rainfall, are likely major contributory factors. Both these factors increased the grazing pressure on Siratro under the set-stocking and continuous grazing that was imposed.
38
Mangano, Francesco, and Giovanni Veronesi. "Digital versus Analog Procedures for the Prosthetic Restoration of Single Implants: A Randomized Controlled Trial with 1 Year of Follow-Up." BioMed Research International 2018 (July 18, 2018): 1–20. http://dx.doi.org/10.1155/2018/5325032.
Full textAbstract:
Aim. To compare the outcome of digital versus analog procedures for the restoration of single implants. Methods. Over a two-year period (2014-2016), all patients who had been treated in a dental center with a single implant were randomly assigned to receive either a monolithic zirconia crown, fabricated with digital workflow (test group), or a metal-ceramic crown, fabricated with analog workflow (control group). All patients were followed for 1 year after the delivery of the final crown. The outcomes were success, complications, peri-implant marginal bone loss (PIMBL), patient satisfaction, and time and cost of the treatment. Results. 50 patients (22 males, 28 females; mean age 52.6±13.4 years) were randomly assigned to one of the groups (25 per group). Both workflows showed high success (92%) and low complication rate (8%). No significant differences were found in the mean PIMBL between test (0.39±0.29mm) and control (0.54±0.32mm) groups. Patients preferred digital impressions. Taking the impression took half the time in the test group (20±5min) than in the control (50±7min) group. When calculating active working time, workflow in the test group was more time-efficient than in the control group, for provisional (70±15min versus 340±37min) and final crowns (29±9min versus 260±26min). The digital procedure presented lower costs than the analog (€277.3 versus €392.2). Conclusions. No significant clinical or radiographic differences were found between digital and analog procedures; however, the digital workflow was preferred by patients; it reduced active treatment time and costs. The present study is registered in the ISRCTN (http://www.isrctn.com/ISRCTN36259164) with number 36259164.
39
Cohen, Philip. "Longitudinale Halb-und-Halb-Nägel: Fallbericht und Literaturübersicht." Kompass Dermatologie 7, no. 2 (2019): 86–90. http://dx.doi.org/10.1159/000496718.
Full textAbstract:
Halb-und-Halb-Nägel wurden ursprünglich als transversale Leukonychie bei Patienten mit chronischer Nierenerkrankung beschrieben; später wurden auch andere Erkrankungen (z.B. Morbus Behçet und Morbus Crohn) und Medikamente (wie Isoniazid) mit diesen Veränderungen der Nägel in Verbindung gebracht. Es liegen allerdings auch Berichte über longitudinale Halb-und-Halb-Nägel (mit Veränderung des medialen Anteils der Nägel) an den Großzehen einer älteren Frau sowie, wie nachstehend vorgestellt, an den Daumen eines älteren Mannes vor, die beide weder unter Morbus Behçet, Morbus Crohn oder einer Nierenerkrankung litten noch Isoniazid anwandten. Bei der Frau lagen eine echte Leukonychie, bilaterale Hallux-valgus-Deformität und chronisches Trauma der medialen Nagelfalze vor. Der Mann hatte eine nicht traumatische apparente Leukonychie und bilaterale Koilonychie; der nicht weiße laterale Anteil seines linken Daumennagels wies auch eine lineare Rille (infolge einer digitalen mukoiden Zyste an der proximalen Nagelfalz) und subunguale Hyperkeratose auf. Zusammenfassend lässt sich sagen, dass longitudinale Halb-und-Halb-Nägel ein seltenes Phänomen sind, das bisher mit keiner systemischen Erkrankung oder Medikation in Verbindung gebracht worden ist. Die erworbene Nagelveränderung kann sich entweder als idiopathischer Befund oder nach chronischem Trauma manifestieren.
40
Subiakto, Birgitta Dwitya Swastyayana, and Utari Kresnoadi. "Telescopic overdenture as an alternative rehabilitation for the loss of several anterior teeth due to traffic accidents." Dental Journal (Majalah Kedokteran Gigi) 53, no. 3 (September 15, 2020): 126. http://dx.doi.org/10.20473/j.djmkg.v53.i3.p126-132.
Full textAbstract:
Background: Telescopic overdenture is a prosthesis consisting of a primary coping, or an inner crown, that is attached to a supporting tooth in the oral cavity, and a secondary coping, or an outer crown, attached to a denture, which must be compatible with the primary coping. Purpose: The purpose of this study was to restore function and aesthetics and uplift the psychological status of the patient by fabrication of a fixed removable prosthesis using the existing abutment teeth as a telescopic overdenture. Case: A 36-year-old female came to the Prosthodontic RSGM UNAIR speciality clinic on her own volition to make front dentures for her upper and lower jaws after a traffic accident one and a half years ago. The patient had an arch bar installed two months after the accident, which was removed after two months. The patient wanted new dentures to improve both her ability to eat and her appearance. Case Management: Preliminary treatments performed were; maxillary and mandibular scaling and root planing; crown lengthening of tooth 15; extraction of teeth 16, 41, 42, and 43; and alveolectomy of the mandibular anterior region. Before the definitive treatment to improve the aesthetic appearance could be carried out, the first step was to make maxillary and mandibular transitional dentures. These were to be used while waiting for healing to occur, following the socket preservation in the mandibular area. Then, for the definitive restoration, we used telescopic overdenture for the maxilla and a removable partial denture for the mandible. Conclusion: Telescopic overdenture is recommended for patients who need good aesthetics for anterior tooth loss. Telescopic overdenture uses double crowns as the retentive elements, which give better aesthetic results compared to clasps, thereby improving the psychological status of the patient. In addition, they have better retention and stability compared to conventional complete dentures.
41
West, P. W., C. L. Beadle, and C. R. A. Turnbull. "Mechanistically based, allometric models to predict tree diameter and height in even-aged monoculture of Eucalyptusregnans F. Muell." Canadian Journal of Forest Research 19, no. 2 (February 1, 1989): 270–73. http://dx.doi.org/10.1139/x89-038.
Full textAbstract:
A randomly selected sample of 22 trees was felled in a stand in a 20-year-old monoculture of Eucalyptusregnans F. Muell. in southern Tasmania. One-half of the trees were from a section of the stand that had been heavily thinned 10 years previously, and the remainder were from the unthinned section. The trees were sectioned and the fresh weights of their stems (including bark) and crowns (leaves plus branches) determined. By combining a geometrical argument about the shape of tree stems with a structural argument about their vertical stability, allometric relationships were established relating tree diameter at breast height or tree height to total aboveground weight and the ratio of crown to stem weight. These relationships were found to hold in both the thinned and unthinned sections of the experiment. When combined with a model to predict biomass of individual trees, these models can be used to predict diameter or height of individual trees in E. regnans monoculture.
42
Budeanu, Marius, Ecaterina Nicoleta Apostol, Emanuel Besliu, Vlad Emil Crișan, and Any Mary Petritan. "Phenotypic Variability and Differences in the Drought Response of Norway Spruce Pendula and Pyramidalis Half-Sib Families." Forests 12, no. 7 (July 19, 2021): 947. http://dx.doi.org/10.3390/f12070947.
Full textAbstract:
In a changing climate, forest managers need to select productive and climate-change-resilient tree species and provenances. Therefore, assessing the growth response of provenances growing in field trials to climate provides useful information for identifying the more appropriate provenance or variety. To determine the genetic gain through selection of the most productive and resilient families and to decipher the role of crown forms of Norway spruces (Picea abies (L.) Karst.), we used 24 families with a classical crown (pyramidalis) and 24 with a narrow crown (pendula) from eight provenances, growing in a 25-year-old comparative trial. The annual wood characteristics (ring width and early- and latewood), the wood resistance (expressed by latewood proportion (LWP)), and the growth response to climate of the two spruce crown forms were investigated. No significant differences between the two spruce forms were found regarding the ring width characteristics. However, three pendula families of Stâna de Vale I provenance exhibited the highest LWP and could be included in a future selection strategy, the respective trait having also high heritability. Radial growth was positively and significantly correlated with previous September and current July precipitation and negatively with current June temperature. Both spruce forms showed good recovery capacity after a drought event.
43
Maurer, Simone. "Liza Lim: Atlas of the Sky – Melbourne Recital Hall." Tempo 73, no. 287 (December 24, 2018): 103–4. http://dx.doi.org/10.1017/s0040298218000748.
Full textAbstract:
Speak Percussion, soprano Jessica Aszodi, and a crowd of 25, gave an intense performance, and world premiere, of Liza Lim's hour-long Atlas of the Sky. Lim's work was inspired by three poems: ‘The Stars’ by Eliot Weinberger, and ‘Whetting’ and ‘The Answer’ by contemporary Chinese poet Bei Dao. Imagery on stage was derived from the poetry, and the work touched on themes of community, ritual, and crowds.
44
Zduniak, Piotr, and Paweł Czechowski. "Carrion Crow Corvus Corone Breeding In Lubuskie Province, W Poland." International Studies on Sparrows 37, no. 1 (December 1, 2013): 25–27. http://dx.doi.org/10.1515/isspar-2015-0021.
Full textAbstract:
Abstract In 2013, a clutch of the Carrion Crow Corvus corone was recorded in the Warta Mouth National Park, western Poland. In April and the first half of May a female incubating two and later four eggs was observed. In mid-May the nest was found empty, indicating that the failure occurred during incubation or the early nestling stage. No male was observed until that time. However, two Carrion Crows were recorded near the nest after the breeding failure, which indicates that it was indeed a breeding attempt made by a homogamic (“pure”) Carrion Crow’s pair. This is the first case described for the Lubuskie Province and the second for Poland in the last 200 years.
45
Stephens, George R. "Mortality, Dieback, and Growth of Defoliated Hemlock and White Pine." Northern Journal of Applied Forestry 5, no. 2 (June 1, 1988): 93–96. http://dx.doi.org/10.1093/njaf/5.2.93.
Full textAbstract:
Abstract In 1981, hemlock and white pine growing in four mixed-wood stands defoliated by gypsy moth were examined for amount of defoliation, crown class, and stem diameter. During May and October 1982-84 the trees were examined for refoliation, mortality, and crown dieback. Hemlock mortality rose quickly to 37% by October 1982 and slowly thereafter to 43% in October 1984. Mortality among dominant hemlock was half that of other crown classes. No dominant or codominant white pine died. Mortality of intermediate white pine leveled at 6% by October 1983; 16% of suppressed trees died by May 1983, and mortality rose slowly to 26% by October 1984. In the spring following defoliation about a third of the surviving hemlock had crown dieback; within two years, three-fourths of these trees died. No hemlock or white pine defoliated less than 60% died. Diameter growth in 1982, the year following defoliation, was about a fourth of that in 1984 for thinned trees and half for unthinned trees. North. J. Appl. For. 5:93-96, June 1988.
46
Gjikaj, Mimoza, Niels-Patrick Pook, and Flora Qarri. "μ-Hexathiometadiphosphato-bis[(1,4,7,10,13,16-hexaoxacyclooctadecane-κ6O)rubidium] acetonitrile disolvate." Acta Crystallographica Section E Structure Reports Online 69, no. 12 (November 30, 2013): m689. http://dx.doi.org/10.1107/s1600536813032121.
Full textAbstract:
The asymmetric unit of the title compound, [Rb2(P2S6)(C12H24O6)2]·2CH3CN, contains one half of an [Rb(18-crown-6)2]2[P2S6] unit and one acetonitrile solvent molecule. The [Rb(18-crown-6)]2[P2S6] unit is completed by inversion symmetry. Its Rb+ion is situated near the centre of the macrocyclic cavity, but is displaced by 0.8972 (1) Å from the O atoms of the crown in the direction of the [P2S6]2−moiety. The overall coordination number of the cation is eight, defined by the six crown ether O atoms and by two terminal S atoms of the [P2S6]2−anion. The hexathiometadiphosphate anion is built up from two tetrahedral PS4units joined together by a common edge. The crystal structure is characterized by alternating layers of [Rb(18-crown-6)]2[P2S6] and acetonitrile solvent molecules stacked along [010].
47
Gao, Feng, Feng-Lei Yang, Xiaowan Feng, Huimin Xu, Wang Sun, Huan Liu, and Xiu-Ling Li. "Half-sandwich lanthanide crown ether complexes with the slow relaxation of magnetization and photoluminescence behaviors." Dalton Transactions 46, no. 4 (2017): 1317–23. http://dx.doi.org/10.1039/c6dt04353d.
Full textAbstract:
Four half-sandwich lanthanide crown ether complexes were successfully synthesized and structurally characterized. Dysprosium complexes show both the slow relaxation of magnetization and photoluminescence behaviors.
48
Hyde, Amy C., Helen J. Rogers, Haris A. Batley, Annie G. Morgan, and Chris Deery. "An overview of preformed metal crowns part 2: the hall technique." Dental Update 42, no. 10 (December 2, 2015): 939–44. http://dx.doi.org/10.12968/denu.2015.42.10.939.
Full text
49
Ludwig, Kevin H., Margherita Fontana, LaQuia A. Vinson, Jeffrey A. Platt, and Jeffrey A. Dean. "The success of stainless steel crowns placed with the Hall technique." Journal of the American Dental Association 145, no. 12 (December 2014): 1248–53. http://dx.doi.org/10.14219/jada.2014.89.
Full text
50
Kaas, Marina, Ute Friedrich, and Nikolaus Korber. "(18-Crown-6)potassium(I) diphenylstibate(−1)." Acta Crystallographica Section E Structure Reports Online 70, no. 7 (June 14, 2014): m260. http://dx.doi.org/10.1107/s1600536814013282.
Full textAbstract:
Red crystals of the title salt, [K(C12H24O6)][Sb(C6H5)2], were obtained by the reaction of SbPh3, KSnBi and 18-crown-6 in liquid ammonia. The asymmetric unit contains one half of a [K(18-crown-6)]+cation and one half of an SbPh2−anion, with the central element lying on a twofold axis and a centre of inversion, respectively. In the crystal structure, the sequestered potassium cations show weak interactions with the π-electrons of the phenyl groups of the SbPh2−anion [shortest K...C distances = 3.190 (2) and 3.441 (2) Å], leading to one-dimensional strands along the crystallographiccaxis. These strands are aligned in a pseudo-hexagonal packing perpendicular to theabplane.