scholarly journals Road to earthquake mitigation: Lesson learnt from the Yogyakarta earthquake 2006

2009 ◽  
Vol 1 (2) ◽  
Author(s):  
Subagyo Pramumijoyo

At early in the morning of May 27, 2006, people of Yogyakarta was stroke by earthquake and mostly heavily damaged building are in lowland or Yogyakarta depression where is occupied by the Young Merapi sediments. The magnitude of earthquake is Mw = 6.2 and USGS rapid moment tensor shows that this earthquake was due to strike-slip fault movement.Seismic history of Yogyakarta area shows that Yogyakarta was stroke by several earthquakes with different epicenter location. At least two earthquakes stroke the area, that is in 1876 and 1943. The damages are similar to the damages of actual earthquake. Yogyakarta depression is mostly covered by Young Merapi sediments that consist of tuff, volcanic ash, breccias, agglomerate and lava with Quaternary in age. The thickness of this sediment is up to 100 m.Our reactive work was to establish firstly zone of damage. For this purpose, we made aerial photograph along the most damaged area. In the same time one of our teams go to the field to measure the cracks, and the other teams to observe liquefaction, hydro geologic measurement, and observation on landslide induce by earthquake. Secondly, we must understand the soil properties and its thickness, because in seismic history it was a similar damage on the same area due to earthquakes however the earthquake epicenters were different. For this purpose we utilize the method of micro-tremors. We also made some drilling until 60 m each, measuring seismic velocity on bore hole, and magneto telluric measurement. We also have helped by Kyushu University in installing micro seismic net work. The research was followed by either undergraduate and graduate students. Fortunately our research was financed by AUN/Seed Net – JICA. Some of the results were published in a book entitled The Yogyakarta Earthquake of May 27, 2006. Another outcome is the Maps of Microzonation and Earthquake Hazard of Bantul Area that dedicated to Bantul people.Based on aerial photograph observation and field observation on Bantul Regency, especially along the Opak River, and to Wonosari to the East, there was no surface ruptures, so there is no fault on surface. Interpretation of aftershock data was showing the difference cluster. There is still open problem in determining either epicenter or aftershock location. The damage building was interpreted as due to its geologic setting, non engineered building, and close to epicenter of earthquake. This heavily damaged building are located on the Young Merapi sediments at Bantul Regency and lake deposits at Gantiwarno and Bayat area where it can amplify the surface seismic wave. It implies that Peak Ground Acceleration according to Indonesian National Standard should be modified in Yogyakarta area.Keywords: Earthquake, seismic, epicenter, micro-tremor, microzonation

2019 ◽  
Vol 10 (1) ◽  
pp. 23-37
Author(s):  
Natalie Binczek

Der deutsche Barockdichter Georg Philipp Harsdörffer skizziert eine Theorie der Emblematik, die vor allem dessen Anwendungsvielfalt hervorhebt. Er hebt dabei besonders den Unterschied zwischen buchinterner und buchexterner Verwendung auf, indem er sich nicht nur für die Aufnahme der Embleme in Büchern, sondern auch auf Geschirr und Tapeten ausspricht. Der Beitrag liest Harsdörffers extensive Überlegungen nicht nur als Beiträge zur Theorie und Geschichte der Embleme als ›Sinn-Bilder‹, sondern auch als Beitrag zur Designgeschichte. German Baroque poet Georg Philipp Harsdörffer delineates a theory of emblematics that clearly sets itself apart from other contemporary theories, especially by its versatility. In particular, the author negates the difference between internal and external usage of emblems in books not only by promoting the incorporation of emblems into printed works but also by supporting their depiction on dishes and tapestries. This article strives to read Harsdörffer’s extensive thoughts on the matter of emblems not simply as another work on the theory and history of emblematics but rather as a contribution to design history as well


Author(s):  
Simon Kirchin

This chapter introduces the distinction between thin and thick concepts and then performs a number of functions. First, two major accounts of thick concepts—separationism and nonseparationism—are introduced and, in doing so, a novel account of evaluation is indicated. Second, each chapter is outlined as is the general methodology, followed, third, by a brief history of the discussion of thick concepts, referencing Philippa Foot, Hilary Putnam, Gilbert Ryle, and Bernard Williams among others. Fourth, a number of relevant contrasts are introduced, such as the fact–value distinction and the difference between concepts, properties, and terms. Lastly, some interesting and relevant questions are raised that, unfortunately, have to be left aside.


2002 ◽  
Vol 62 (1) ◽  
pp. 268-269
Author(s):  
Larry Neal

Economic historians usually have to explain to their economist colleagues the difference between economic history, which focuses on facts, and history of economic thought, which focuses on ideas. Our colleagues in finance departments, typically fascinated by episodes in financial history treated by economic historians, are bound to be disappointed in the lack of attention given to the development of ideas in finance by historians of economic thought. Geoffrey Poitras, a professor of finance at Simon Fraser University, makes a valiant effort to remedy these oversights in his collection of vignettes that highlight the sophistication of financial instruments and analysts of financial markets well before the time of Adam Smith. Starting in 1478 with the publication of the Treviso Arithmetic, a typical textbook of commercial arithmetic for Italian merchants, and ending with brief snippets from the Wealth of Nations, Poitras treats the reader to a fascinating potpourri of excerpts from various manuals, brief biographies of pioneers in financial analysis, and historical discursions on foreign-exchange and stock markets.


2021 ◽  
pp. 016224392110323
Author(s):  
Kristina Popova

The article addresses the production of reproducibility as a topic that has become acutely relevant in the recent discussions on the replication crisis in science. It brings the ethnomethodological stance on reproducibility into the discussions, claiming that reproducibility is necessarily produced locally, on the shop floor, with methodological guidelines serving as references to already established practices rather than their origins. The article refers to this argument empirically, analyzing how a group of novice neuroscientists performs a series of measurements in a transcranial magnetic stimulation experiment. Based on ethnography and video analysis, the article traces a history of the local measurement procedure invented by the researchers in order to overcome the experimental uncertainty. The article aims to demonstrate (1) how reproducibility of the local procedure is achieved in the shop floor work of the practitioners and (2) how the procedure becomes normalized and questioned as incorrect in the course of experimental practice. It concludes that the difference between guidelines and practical actions is not problematic per se; what may be problematic is that researchers can be engaged in different working projects described by the same instruction.


2021 ◽  
pp. 197140092110006
Author(s):  
Warren Chang ◽  
Ajla Kadribegic ◽  
Kate Denham ◽  
Matthew Kulzer ◽  
Tyson Tragon ◽  
...  

Purpose A common complication of lumbar puncture (LP) is postural headaches. Epidural blood patches are recommended if patients fail conservative management. Owing to a perceived increase in the number of post-lumbar puncture headaches (PLPHs) requiring epidural blood patches at a regional hospital in our network, the decision was made to switch from 20 to 22 gauge needles for routine diagnostic LPs. Materials and methods Patients presenting for LP and myelography at one network regional hospital were included in the study. The patients were contacted by nursing staff 3 days post-procedure; those patients who still had postural headaches after conservative management and received epidural blood patches were considered positive cases. In total, 292 patients were included; 134 underwent LP with 20-gauge needles (53 male, 81 female, average age 57.7) and 158 underwent LP with 22-gauge needles (79 male, 79 female, average age 54.6). Results Of 134 patients undergoing LP with 20-gauge needles, 15 (11%) had PLPH requiring epidural blood patch (11 female, 3 male, average age 38). Of 158 patients undergoing LP with 22-gauge needles, only 5 (3%) required epidural blood patches (all female, average age 43). The difference was statistically significant ( p < 0.01). Risk factors for PLPH included female gender, younger age, lower body mass index, history of prior PLPH and history of headaches. Conclusion Switching from 20-gauge to 22-gauge needles significantly decreased the incidence of PLPH requiring epidural blood patch. Narrower gauge or non-cutting needles should be considered in patients with risk factors for PLPH, allowing for CSF requirements.


2020 ◽  
Vol 26 (Supplement_1) ◽  
pp. S48-S48
Author(s):  
Hartman Brunt ◽  
Mason Adams ◽  
Michael Barker ◽  
Diana Hamer ◽  
J C Chapman

Abstract Purpose Crohn’s disease (CD) is an inflammatory bowel disease (IBD) caused by an abnormal immune response to intestinal microbes in a genetically susceptible host. The objective of this cohort analysis is to compare demographic characteristics, cost difference, and treatment modalities between patients who were discharged from the Emergency Department (ED) and those who were admitted to the hospital. Methods This study is a retrospective chart review of adult patients diagnosed with CD who were discharged from the ED and those who were admitted to the hospital between January 1, 2014 and January 1, 2017. We compared demographic and clinical characteristics as well as total charges incurred by these patients. A chi square test of independence and a Mann Whitney U-Test were used to compare categorical variables. Linear and logistic regression analyses were utilized to identify predictors of hospitalization and total charges. Results Of a total 195 patients, 97 were discharged from the ED and 98 were admitted to the hospital (Table 1). Patients who presented with fever, nausea/vomiting, or abdominal pain or who had a history of a fistula or stenosis were more likely to be hospitalized, as were patients who presented on steroids, 5-ASA compounds, or narcotics (Table 2). A logistic regression adjusted for these factors showed patients presenting with abdominal pain (OR=0.239, 95% CI 0.07 – 0.77) are less likely, while patients presenting with fever (OR=7.0, 95% CI 1.9 – 24.5) and history of stenosis (OR=17.8, 95% CI 5.7 – 55.9) are more likely to have a hospital admission. An increase in age and white blood cell count was associated with an increase in likelihood of admission (OR=1.04, 95% CI 1.01 – 1.07 and OR=1.2, 95% CI 1.1 – 1.4), while an increase in HGB was associated with a decrease in likelihood of admission (OR=0.682, 95% CI 0.55 – 0.83). Patients on 5-ASA compounds had the strongest association with hospital admission (OR=4.5, 95% CI 1.03 – 20.4). A linear regression analysis predicting total charges of hospitalization identified an increase of $37,500 (95% CI 6,600 – 68,489) for obese patients and of $29,000 (95% CI 20 – 57,000) for patients on narcotics prior to hospitalization. Notably, blacks were on average 6 years younger than whites (μ=36.2, st.d.=13.2 v μ=42.7, st.d.=18.2, p=0.031, respectively). No other differences in presentation or outcomes of CD were identified between these races. Conclusion This study describes the difference between CD patients who were admitted to the hospital compared to those who were discharged from the ED. The impact that 5-ASA compound, steroid, and narcotic use prior to presentation has on hospital admission and charges highlights the need for consistent outpatient care to manage the symptoms and disease progression in patients with CD in Baton Rouge. The difference in age at presentation between blacks and whites should also be considered in future research.


1955 ◽  
Vol 20 (2) ◽  
pp. 131-154 ◽  
Author(s):  
R. G. West ◽  
C. M. B. McBurney

The long history of investigations at Hoxne, Suffolk, beginning when John Frere discovered Palaeolithic implements there in the last decade of the eighteenth century, has been described by Moir. Moir himself worked on the deposits at Hoxne, and the results of his investigations, together with those of Reid, have formed the basis for our knowledge of the geology and archaeology of the deposits. From these investigations it is clear that Hoxne is an important site, for it is one of the rare places where there are interglacial lake deposits and Palaeolithic implements in direct association with ground moraines of the older glaciations. Moreover, the deposits occupy a well-known position in the East Anglian Quaternary succession.


2013 ◽  
Vol 28 (3) ◽  
pp. 802-814 ◽  
Author(s):  
Timothy W. Armistead

Abstract The paper briefly reviews measures that have been proposed since the 1880s to assess accuracy and skill in categorical weather forecasting. The majority of the measures consist of a single expression, for example, a proportion, the difference between two proportions, a ratio, or a coefficient. Two exemplar single-expression measures for 2 × 2 categorical arrays that chronologically bracket the 130-yr history of this effort—Doolittle's inference ratio i and Stephenson's odds ratio skill score (ORSS)—are reviewed in detail. Doolittle's i is appropriately calculated using conditional probabilities, and the ORSS is a valid measure of association, but both measures are limited in ways that variously mirror all single-expression measures for categorical forecasting. The limitations that variously affect such measures include their inability to assess the separate accuracy rates of different forecast–event categories in a matrix, their sensitivity to the interdependence of forecasts in a 2 × 2 matrix, and the inapplicability of many of them to the general k × k (k ≥ 2) problem. The paper demonstrates that Wagner's unbiased hit rate, developed for use in categorical judgment studies with any k × k (k ≥ 2) array, avoids these limitations while extending the dual-measure Bayesian approach proposed by Murphy and Winkler in 1987.


2021 ◽  
Vol 28 (04) ◽  
pp. 568-571
Author(s):  
Saira Bano ◽  
Sumaya Khan ◽  
Mahnoor Waqar ◽  
Moniba Iqbal ◽  
Hamza Waqar Bhatti ◽  
...  

Objective: To determine the difference in mean corneal curvatures before and after pterygium excision. Study Design: Quasi-experimental study. Setting: Department of Ophthalmology, Holy Family Hospital, Rawalpindi. Period: 1st January 2015 to 1st July 2015. Material & Methods: 68 patients aged between 18 to 65 years were included in the study. Patients with history of ocular trauma, ocular surgery, glaucoma, anti-glaucoma treatment, allergy to steroids, pseudo pterygium, recurrent pterygium and presence of corneal abnormalities such as, scarring that might affect the astigmatic value were excluded. All patients underwent comprehensive ophthalmic examination by slit lamp and best corrected visual acuity and keratometric values were noted. Pterygium excision was done by a single surgeon. BCVA and keratometric readings were taken again after 2 weeks of pterygium excision. Results: Mean age was 37.60 ± 11.11 years. Out of these 68 patients, 44 (64.71%) were male and 24 (35.29%) were females. Mean pre-operative corneal curvature was 2.99 ± 0.69D and post-operative corneal curvature was 1.70 ± 0.40D with P-value of <0.0001 which is statistically significant. Conclusion: This study concluded that pterygium excision brings significant change in corneal curvature in patients of pterygium induced astigmatism.


2018 ◽  
Vol 27 (1) ◽  
pp. 51-56
Author(s):  
Ferdousi Hossain Poly ◽  
Syeda Afroza ◽  
Hasanur Rahman ◽  
Md Imran Hassan

A congenital heart defect is a heart problem which is present at birth, caused by improper development of the heart during fetal development. In majority of cases there is no known reason for the heart to develop improperly. Some type of congenital heart defects are related to chromosomal abnormality(5-6%), some are to single gene defect(3-5%) or environmental factors(2%). In 85-90% of cases there is no identifiable cause and are generally considered to be caused by multifactorial inheritance. There are some maternal factors which have some role in cardiovascular malformations. These include high maternal age(above 30 years), maternal obesity, consanguinity among the parents, fever during pregnancy, gestational diabetes mellitus, smoking, alcohol consumption, ingestion of any teratogenic drug including homeopathy and herbal medicine. Objective of the study: To evaluate the risk factors associated with congenital heart disease. Methodology: A case control study was conducted at paediatric department of Sir Salimullah Medical College & Mitford Hospital following approval of the protocol from 1st January 2013 to 30th June 2014. Children fulfilling the inclusion criteria-(0-5 year old children of both sexes admitted in paediatric units of Mitford Hospital with any type of congenital heart disease confirmed by echocardiography) were considered as cases. A similar number of age and sex matched children admitted in Mitford Hospital without any cardiac defect were considered as controls. Data were collected by questionnaire. Results: The results show that majority of the cases are male. Maternal age (27.09 ± 4.63) and BMI (24.10 ± 2.28) both are significantly higher in cases than those of controls. Among the cases 31.8% mothers had consanguineous marriage (p=0.001) and 27.1% mothers had history of fever during pregnancy whereas it was present in 9.3% mothers of controls, the difference is significant statistically (p=0.001). Among the cases 34.6% mothers had history of gestational diabetes mellitus and only 18.9% controls had so and the difference is significant statistically (p=0.014). Conclusion: Relatively old age and more weight during pregnancy, consanguinity between parents, fever during pregnancy, history of gestational diabetes mellitus are the main risk factors of congenital heart defects in children J Dhaka Medical College, Vol. 27, No.1, April, 2018, Page 51-56


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