scholarly journals The History of Myringotomy and Grommets

2020 ◽  
Vol 99 (1_suppl) ◽  
pp. 2S-7S ◽  
Author(s):  
Joanne Rimmer ◽  
Charles E. Giddings ◽  
Neil Weir

The first recorded myringotomy was in 1649. Astley Cooper presented 2 papers to the Royal Society in 1801, based on his observations that myringotomy could improve hearing. Widespread inappropriate use of the procedure followed, with no benefit to patients; this led to it falling from favor for many decades. Hermann Schwartze reintroduced myringotomy later in the 19th century. It had been realized earlier that the tympanic membrane heals spontaneously, and much experimentation took place in attempting to keep the perforation open. The first described grommet was made of gold foil. Other materials were tried, including Politzer’s attempts with rubber. Armstrong’s vinyl tube effectively reintroduced grommets into current practice last century. There have been many eponymous variants, but the underlying principle of creating a perforation and maintaining it with a ventilation tube has remained unchanged. Recent studies have cast doubt over the long-term benefits of grommet insertion; is this the end of the third era?

2007 ◽  
Vol 121 (10) ◽  
pp. 911-916 ◽  
Author(s):  
J Rimmer ◽  
C E B Giddings ◽  
N Weir

The first recorded myringotomy was in 1649. Astley Cooper presented two papers to the Royal Society in 1801, based on his observation that myringotomy could improve hearing. Widespread inappropriate use of the procedure followed, with no benefit to patients; this led to it falling from favour for many decades. Hermann Schwartze reintroduced myringotomy later in the nineteenth century. It had been realised earlier that the tympanic membrane heals spontaneously, and much experimentation took place in attempting to keep the perforation open. The first described grommet was made of gold foil. Other materials were tried, including Politzer's attempts with rubber. Armstrong's vinyl tube effectively reintroduced grommets into current practice last century. There have been many eponymous variants, but the underlying principle of creating a perforation and maintaining it with a ventilation tube has remained unchanged. Recent studies have cast doubt over the long-term benefits of grommet insertion; is this the end of the third era?


2006 ◽  
Vol 2 (SPS5) ◽  
pp. 21-24
Author(s):  
Rajesh Kochhar

AbstractAny international effort to promote astronomy world wide today must necessarily take into account its cultural and historical component. The past few decades have ushered in an age, which we may call the Age of Cultural Copernicanism. In analogy with the cosmological principle that the universe has no preferred location or direction, Cultural Copernicanism would imply that no cultural or geographical area, or ethnic or social group, can be deemed to constitute a superior entity or a benchmark for judging or evaluating others.In this framework, astronomy (as well as science in general) is perceived as a multi-stage civilizational cumulus where each stage builds on the knowledge gained in the previous stages and in turn leads to the next. This framework however is a recent development. The 19th century historiography consciously projected modern science as a characteristic product of the Western civilization decoupled from and superior to its antecedents, with the implication that all material and ideological benefits arising from modern science were reserved for the West.As a reaction to this, the orientalized East has often tended to view modern science as “their” science, distance itself from its intellectual aspects, and seek to defend, protect and reinvent “our” science and the alleged (anti-science) Eastern mode of thought. This defensive mind-set works against the propagation of modern astronomy in most of the non-Western countries. There is thus a need to construct a history of world astronomy that is truly universal and unselfconscious.Similarly, the planetarium programs, for use the world over, should be culturally sensitive. The IAU can help produce cultural-specific modules. Equipped with this paradigmatic background, we can now address the question of actual means to be adopted for the task at hand. Astronomical activity requires a certain minimum level of industrial activity support. Long-term maintenance of astronomical equipment is not a trivial task. There are any number of examples of an expensive facility falling victim to AIDS: Astronomical Instrument Deficiency Syndrome. The facilities planned in different parts of the world should be commensurate with the absorbing power of the acceptor rather than the level of the gifter.


Author(s):  
Sarah Covington

The 17th century is one of the most important periods in England’s history, eliciting highly charged and often ideologically driven debates among scholars. The story of England, as it was told during the 19th century, was central in defining British identity and creating a national myth, known as Whig history, of triumphant progress toward liberty. Not surprisingly, the 20th century revised this history in accordance with contemporary ideologies that included communism, while the 1970s witnessed a further revisionist turn when Conrad Russell, most notably, asserted the contingent nature of the causes leading to the war, in response to the traditional position that emphasized long-term events originating in a division between the crown and an oppositional parliament. This position has, unsurprisingly, been amended in recent years. Meanwhile, another shift has extended the midcentury upheavals to include the “Three Kingdoms” approach, which decenters England in its readings and incorporates Scotland and Ireland into the larger turmoil. But the 17th century was not simply about the Civil War and Interregnum dominated by Cromwell; the Restoration itself was also determined by the events that preceded it, with continuities as well as the more obvious cultural and political shifts blurring the demarcating historical line. And in some respects, the revolution of 1688 served as a culminating answer to the questions raised but never fully resolved by issues earlier in the century. Whether the revolution of 1688 was truly significant or not—and it was certainly once thought to be the crowning achievement of liberty and rights—has itself provoked debate, with James II’s “absolutism” or William III’s victory convincingly modified by historians. So many debates abound, and so many figures are subject to different readings, that it is difficult to fix this period into any stable meaning without lending it heavy qualifications. As a result, it is revealing that an increasingly common subgenre in the field consists of books solely devoted not to the history of these revolutionary years, but to the debates about it—just as the names of historians such as Gardiner, Hill, Stone, or Russell have become inextricably a part of the historical narrative as well. Such debates will continue as long as the 17th century resists clear interpretation—a testament to the dramatic complexity of the time, and to the historians who continue to interpret it.


Author(s):  
Зосима Верховская

Аннотация. Воспоминания монахини Зосимы (Верховской) о М. М. Громыко касаются обстоятельств обращения автора к семейно-родовым преданиям, связанным с подвижником XIX в. монахом Зосимой (Верховским). К этому ее подвигла книга М. М. Громыко «Сибирские знакомые и друзья Ф. М. Достоевского». Знакомство с автором книги перешло в плодотворное, многолетнее научное сотрудничество с Громыко, в написание трудов по истории монастырей, основанных святым. Автор отмечает выдающиеся личные качества М. М. Громыко, позволяющие ей работать по религиозной тематике. Abstract. Memories of nun Zosima (Verkhovskaya) about M.M. Gromyko refer to the circumstances of the author’s appeal to family and clan legends associated with the ascetic of the 19th century monk Zosima (Verkhovsky). To this she was prompted by Gromyko’s book «Siberian acquaintances of F. M. Dostoevsky». Acquaintance with the author of the book turned into fruitful, long-term communication with Gromyko, into writing works on the history of monasteries founded by the saints. The author notes the outstanding personal qualities of M. M. Gromyko, allowing her to work on religious topics.


eLife ◽  
2017 ◽  
Vol 6 ◽  
Author(s):  
Julie Morin-Rivat ◽  
Adeline Fayolle ◽  
Charly Favier ◽  
Laurent Bremond ◽  
Sylvie Gourlet-Fleury ◽  
...  

The populations of light-demanding trees that dominate the canopy of central African forests are now aging. Here, we show that the lack of regeneration of these populations began ca. 165 ya (around 1850) after major anthropogenic disturbances ceased. Since 1885, less itinerancy and disturbance in the forest has occurred because the colonial administrations concentrated people and villages along the primary communication axes. Local populations formerly gardened the forest by creating scattered openings, which were sufficiently large for the establishment of light-demanding trees. Currently, common logging operations do not create suitable openings for the regeneration of these species, whereas deforestation degrades landscapes. Using an interdisciplinary approach, which included paleoecological, archaeological, historical, and dendrological data, we highlight the long-term history of human activities across central African forests and assess the contribution of these activities to present-day forest structure and composition. The conclusions of this sobering analysis present challenges to current silvicultural practices and to those of the future.


2012 ◽  
Vol 92 (1) ◽  
pp. 53-66 ◽  
Author(s):  
Julia Krümmelbein ◽  
Oliver Bens ◽  
Thomas Raab ◽  
M. Anne Naeth

Krümmelbein, J., Bens, O., Raab, T. and Naeth, M. A. 2012. A history of lignite coal mining and reclamation practices in Lusatia, eastern Germany. Can. J. Soil Sci. 92: 53–66. Germany is the world's leading lignite coal producer. The region surrounding the towns of Cottbus and Senftenberg in Lusatia, Eastern Germany, is one of the largest mining areas in Germany, and has economically been strongly dependent on lignite mining and lignite processing industries since the middle of the 19th century. We introduce the area, give a brief historical overview of lignite mining techniques and concentrate on post-mining recultivation (reclamation) to agricultural and forestry dominated landscapes. An overview of the physical and chemical limitations for reclamation of the Tertiary and Quaternary substrates due to their natural composition and the technical processes of mine site construction is provided. We introduce some recultivation practices and end with a display of land uses before and after mining and an outlook on the future use of the reclaimed landscape. This review serves as a defined perspective on long-term coal mine reclamation from which to address global similarities and contrasts.


2021 ◽  
Vol 7 (1) ◽  
Author(s):  
B.S. Galdolage

The history of value perceptions in marketing goes back to the end of the 19th century, to the industrial revolution which gave rise to ‘transaction marketing’. It made a dichotomy between the customer and producer, making value one-way directional from the provider to the customer. In the early 1990s, many ‘industrial nations' which were recognised as ‘production-led economies' started transforming into ‘service led’ seeking to establish long-term relationships with customers focusing on customer retention more than attracting new customers. However, value creation in the third millennium, progressively transformed into a new stage giving priority to the collaborative perspective of value creation which termed as co-creation. Cite this book review: B.S. Galdolage. (2021). Book Review: How Creating Customer Value Makes You a Great Executive by Gautam Mahajan, Vidyodaya Journal of Management, 7(1), 163-165.


2017 ◽  
Vol 6 (1) ◽  
pp. 12-22
Author(s):  
Sahar Mehranfar ◽  
Sirous Zeinali ◽  
Rana Hosseini ◽  
Mozhdeh Mohammadian ◽  
Abolfazl Akbarzadeh ◽  
...  

In 1845, leukemia was known as a systemic illness; and it was more than 100 years later that the first report of a significant therapy for leukemia was published in 1948. Leukemia was known as a multifactorial disease rather than a single disease till 1900. In 1965, less than 1% of children with acute leukemia were predictable to have long-term survivors; today, approximately 80% of children and adolescents with acute lymphoblastic leukemia are cured, these achievements are due to the cooperative effort of researchers and physicians in the field. Despite this success, leukemia is still the leading cause of death globally. This review aims to elucidate the history of leukemia from the beginning of the 19th century when scientists defined unusual disorders of the blood cells, till present. Additionally, we tried to discuss the history of the diagnosis and treatment of leukemia with particular emphasis on acute leukemia. [GMJ.2017;6(1):12-22]


2004 ◽  
Vol 28 (9) ◽  
pp. 315-316 ◽  
Author(s):  
Stefan Priebe

European nations – including Britain – have a common pattern in their history of mental health care. Most western and central European countries established large asylums in the 19th century and engaged in some form of de-institutionalisation during the second half of the 20th century. Since the 1950s, major mental health reforms have significantly improved the quality of care. Although time of onset, pace, fashion and outcomes of reforms varied greatly between countries, throughout western Europe community-based services have been established and become part of routine service provision (Becker & Vázquez-Barquero, 2001). Compared with the heyday of the reform spirit in the 1970s, we now appear to be experiencing a relatively calm period. Developments currently seem to be dominated by fragmented pragmatism rather than by dreamy visions. This may reflect a wider trend in politics: throughout Europe, ambitious long-term visions appear less relevant as drivers for political change than was the case a few decades ago.


2021 ◽  
pp. 014556132110264
Author(s):  
Shunsuke Takai ◽  
Kazuhiro Nomura ◽  
Kiyoshi Oda ◽  
Daiki Ozawa ◽  
Mihoko Irimada ◽  
...  

Background: Ventilation tube (VT) insertion is the most common treatment for otitis media with effusion (OME). However, OME recurrence and persistent tympanic membrane (TM) perforation after VT removal are encountered in a certain percentage of such children. Methods: This study was performed to determine the outcomes of children who underwent long-term VT insertion. A total of 326 ears from 192 patients were analyzed. The associations among the patient age, sex, history of OME, history of repeated acute otitis media, placement duration, whether the VT had been removed intentionally or spontaneously, and the outcome (persistent TM perforation or OME recurrence) were analyzed. The outcomes of multiple VT tube insertions were also reviewed. We also analyzed whether or not local or general anesthesia was associated with the early spontaneous extrusion of the VT. Result: The OME recurrence and TM perforation rates were 29% (96/326 sides) and 17% (57/326 sides), respectively, for first insertions. In addition, 96 (29%) sides underwent ≥2 insertions. The shorter the duration for which the VT was retained in the middle ear, the more significant the rate of increase in OME recurrence. The OME recurrence was observed more often when VT was spontaneously removed than when intentionally removed. The rate of persistent TM perforation was significantly associated with male sex. Persistent TM perforation was not observed in patients who underwent 4 or 5 insertions. The anesthesia method did not significantly influence the timing of spontaneous extrusion of VT. Conclusion: The retention period of VT should be at least 2 years, and VT removal at the age of 7 might be a viable strategy. Multiple VT insertions are recommended for patients with recurrent OME. Ventilation tube under local anesthesia is an effective option for tolerable children.


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