scholarly journals Relation between integral effect of sub-surface temperature variation (<i>I</i>) and seismic effects

2009 ◽  
Vol 9 (6) ◽  
pp. 1815-1821
Author(s):  
H. Jalal Kamali ◽  
A. A. Bidokhti ◽  
H. Amiri

Abstract. There will be a change in the Earth's local sub-surface thermal structure before and/or after an earthquake. In this work we have introduced a new parameter (I) which relates integral effect of temperature variation and seismic activity. This parameter in its various forms integrates the temperature variations during one year before and after earthquake. Some recent earthquakes are chosen throughout Iran on Alps-Himalayas fault zone with magnitudes 4.5 and more. Subsurface temperatures up to one meter depth measured in nearby weather stations are used as there is no deeper data available. We found the new defined parameter (I) has a direct relation with earthquakes magnitude (M) and reverse relation with distance (d) between earthquake focus and station in which temperature is measured. Suitable formulas for these relations are suggested regarding the magnitude ranges and time period with respect to the earthquake time. There may be a way to use this new parameter as a quake precursor.

2019 ◽  
Vol 47 (8) ◽  
pp. 1285-1292
Author(s):  
Paula Muilu ◽  
Vappu Rantalaiho ◽  
Hannu Kautiainen ◽  
Lauri Juhani Virta ◽  
Kari Puolakka

Objective.To assess to what extent the worldwide opioid epidemic affects Finnish patients with early inflammatory arthritis (IA).Methods.From the nationwide register maintained by the Social Insurance Institution of Finland, we collected all incident adult patients with newly onset seropositive and seronegative rheumatoid arthritis (RA+ and RA–) and undifferentiated arthritis (UA) between 2010 and 2014. For each case, 3 general population (GP) controls were matched according to age, sex, and place of residence. Drug purchases between 2009 and 2015 were evaluated 1 year before and after the index date (date of IA diagnosis), further dividing this time into 3-month periods.Results.A total of 12,115 patients (66% women) were identified. At least 1 opioid purchase was done by 23–27% of the patients 1 year before and 15–20% one year after the index date. Relative risk (RR) of opioid purchases compared to GP was highest during the last 3-month time period before the index date [RR 2.81 (95% CI 2.55–3.09), 3.06 (2.68-3.49), and 4.04 (3.51–4.65) for RA+, RA–, and UA, respectively] but decreased after the index date [RR 1.38 (1.23–1.58), 1.91 (1.63–2.24), and 2.51 (2.15–2.93)]. Up to 4% of the patients were longterm users both before and after the diagnosis.Conclusion.During 2009–15 in Finland, opioid use peaked just before the diagnosis of IA but decreased rapidly after that, suggesting effective disease control, especially in seropositive RA. Further, opioids were used to treat arthritis pain of patients with incident RA and UA less often than previously reported from other countries.


2018 ◽  
Vol 170 ◽  
pp. 03026
Author(s):  
Olga Yanina ◽  
Anton Chigarev ◽  
Alexander Yanin ◽  
Peter Kalugin ◽  
Yanina Yanina

The aim of this work is to determine the effect of “temperature-precipitation” climate parameters on the physical properties of sandy soil of an embankment during the construction period. The object of this study is sand from a quarry and the upper layer of the road embankment before and after the climatic effect during the “autumn-winter-spring” period. The results of this study revealed changes in sand gradation, coefficient of permeability and void ratio of a sandy soil after the influence of “temperature-precipitation” climate parameters during a short time period. The results of this study can be used for geotechnical control of construction process.


2015 ◽  
Vol 760 ◽  
pp. 287-292 ◽  
Author(s):  
Mihaela Baritz ◽  
Laura Diana Cotoros ◽  
Lucia Dumitrescu

A number of issues related to composite structure analysis of variants of insoles, commonly used for getting comfortable wearing or improvement of posture deficiencies are presented in this research paper. In the first part of a paper some variants of biomechanical system consisting of composite structures - namely foot and insoles variants undergo analysis are presented and analyzed. This study aims to determine how these insoles react to the effect of temperature and humidity parameters during different time period. In the second part of the paper the experimental system and how to choose the group of samples analyzed are presented. The results and conclusions obtained from this study and the establishing the structural changes, evidenced by microscopic analysis are analyzed in the final part of the paper.


Author(s):  
G. Kavanagh ◽  
K. Pentieva ◽  
J. Kennedy ◽  
C. A. Moran

SummaryA drive to promote European feed market competitiveness saw the introduction of Regulation (EC) 767/2009 which addresses the placing on the market and use of feed within the European Community. The aim of this study was to determine if the feed industry has changed their advertising practice since the introduction of the Regulation, particularly in reference to Article 13 which sets out the requirements for the use of claims on animal feed. A content analysis of feed material advertisements in nine major EU based feed industry journals, representing all major animal production species, was conducted (n = 822). Relevant advertisements incorporating a time period of one year before and after the enforcement of the Regulation were included. Advertisements were assessed for the level of information provided and the use of claims. The study indicated that there has been a decrease in the provision of information cues on feed advertisements since the Regulation came into being (from 2.5 cues to 1.7 (SEM = 0.56, p < 0.001)). Furthermore, the appearance of certain claims also showed reductions in frequency (reduction in claims relating to improvements in the environmental (χ2 = 4.7, p < 0.05), the nutritional needs of the animal (χ2 = 9.7, p < 0.01) and the effect on the performance of the animal (χ2 = 4.2, p < 0.05)). It is possible that despite the intention to inspire innovation in the food industry, the Regulation may be motivating a more cautious approach to the advertising of feedingstuffs in Europe.


2020 ◽  
Vol 4 (1) ◽  
pp. 27
Author(s):  
Ridwan Yusuf Lubis ◽  
Lailatul Husna Lubis ◽  
Miftahul Husnah

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Javad Khanali ◽  
Mohammad-Reza Malekpour ◽  
Ali-Asghar Kolahi

Abstract Background When a new or re-emergent pathogen, such as SARS-CoV-2, causes a major outbreak, rapid access to pertinent research findings is crucial for planning strategies and decision making. We researched whether the speed of sharing research results in the COVID-19 epidemic was higher than the SARS and Ebola epidemics. We also researched whether there is any difference in the most frequent topics investigated before and after the COVID-19, SARS, and Ebola epidemics started. Methods We used PubMed database search tools to determine the time-period it took for the number of articles to rise after the epidemics started and the most frequent topics assigned to the articles. Results The main results were, first, the rise in the number of articles occurred 6 weeks after the COVID-19 epidemic started whereas, this rise occurred 4 months after the SARS and 7 months after the Ebola epidemics started. Second, etiology, statistics & numerical data, and epidemiology were the three most frequent topics investigated in the COVID-19 epidemic. However, etiology, microbiology, and genetics in the SARS epidemic, and statistics & numerical data, epidemiology, and prevention & control in the Ebola epidemic were more frequently studied compared with other topics. Third, some topics were studied more frequently after the epidemics started. Conclusions The speed of sharing results in the COVID-19 epidemic was much higher than the SARS and Ebola epidemics, and that there is a difference in the most frequent articles’ topics investigated in these three epidemics. Due to the value of time in controlling epidemics spread, the study highlights the necessity of defining more solutions for rapidly providing pertinent research findings in fighting against the next public health emergency.


2021 ◽  
Vol 11 (6) ◽  
pp. 478
Author(s):  
Ching Chang ◽  
Chien-Hao Huang ◽  
Hsiao-Jung Tseng ◽  
Fang-Chen Yang ◽  
Rong-Nan Chien

Background: Hepatic encephalopathy (HE), a neuropsychiatric complication of decompensated cirrhosis, is associated with high mortality and high risk of recurrence. Rifaximin add-on to lactulose for 3 to 6 months is recommended for the prevention of recurrent episodes of HE after the second episode. However, whether the combination for more than 6 months is superior to lactulose alone in the maintenance of HE remission is less evident. Therefore, the aim of this study is to evaluate the one-year efficacy of rifaximin add-on to lactulose for the maintenance of HE remission in Taiwan. Methods: We conducted a real-world single-center retrospective cohort study to compare the long-term efficacy of rifaximin add-on to lactulose (group R + L) versus lactulose alone (group L, control group). Furthermore, the treatment efficacy before and after rifaximin add-on to lactulose was also analyzed. The primary endpoint of our study was time to first HE recurrence (Conn score ≥ 2). All patients were followed up every three months until death, and censored at one year if still alive. Results and Conclusions: 12 patients were enrolled in group R + L. Another 31 patients were stratified into group L. Sex, comorbidity, ammonia level, and ascites grade were matched while age, HE grade, and model for end-stage liver disease (MELD) score were adjusted in the multivariable logistic regression model. Compared with group L, significant improvement in the maintenance of HE remission and decreased episodes and days of HE-related hospitalizations were demonstrated in group R + L. The serum ammonia levels were significantly lower at the 3rd and 6th month in group 1. Concerning changes before and after rifaximin add-on in group R + L, mini-mental status examination (MMSE), episodes of hospitalization, and variceal bleeding also improved at 6 and 12 months. Days of hospitalization, serum ammonia levels also improved at 6th month. Except for concern over price, no patients discontinued rifaximin due to adverse events or complications. The above results provide evidence for the one-year use of rifaximin add-on to lactulose in reducing HE recurrence and HE-related hospitalization for patients with decompensated cirrhosis.


FACE ◽  
2021 ◽  
pp. 273250162199244
Author(s):  
Elizabeth M. Boudiab ◽  
Thomas D. Zaikos ◽  
Christopher Issa ◽  
Kongkrit Chaiyasate ◽  
Stephen M. Lu

Electric scooters are an increasingly common and convenient mode of transportation worldwide and have effectively revolutionized the shared micromobility industry. As electric scooter sharing companies have increased in popularity there has been a concomitant increase in the frequency of all electric scooter-related injuries. The purpose of this study is to describe the most up-to-date trends in craniofacial fractures and lacerations related to electric scooter use among all age groups. We queried the National Electronic Injury Surveillance System (NEISS) for craniofacial fractures and lacerations related to e-scooters between 2010 and 2019. We then compared injury trends over time and between time periods before and after 2017 when electric scooter share apps revolutionized micromobility. We compared incidence of injury overall and by day of the week, patient demographics, and case severity based on clinical disposition. We identified an increase in the frequency of craniofacial lacerations and fractures in the 3 years following the introduction of electric scooter share services in 2017 (2017 and 2019), compared to the 3 years before this time (2014-2016). Young adults (18-39 years) were the age group with the greatest interval increase in craniofacial injuries. There was also an increase in number of craniofacial injuries occurring on Mondays and a decrease number occurring on Fridays in the later time period. Finally, patients who presented with electric scooter-related craniofacial injuries in this later time period showed a higher frequency of overnight observation and hospital admission for their injuries. The number of craniofacial injuries secondary to electric scooter use has increased dramatically since the introduction of share services. Craniofacial fractures and lacerations are a common reason for craniofacial or maxillofacial surgery consultation and understanding these patterns of injury will help prepare surgeons for patient care, preventative education, and public advocacy.


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