Behavior of Organophosphoric Acid Triesters in Japanese Riverine and Coastal Environment

1992 ◽  
Vol 25 (11) ◽  
pp. 278-278 ◽  
Author(s):  
M. Fukushima ◽  
S. Kawai ◽  
Y. Yamaguchi
Keyword(s):  
River Basin ◽  
Coastal Waters ◽  
Lake Biwa ◽  
Apparent Difference ◽  
Osaka Bay ◽  
The Mean ◽  
Long Term Monitoring ◽  
The Individual ◽  
Term Monitoring

The long-term monitoring of organophosphoric acid triesters started in 1976 in the Yodo River basin; Lake Biwa, Yodo River and the rivers in Osaka City. An extensive survey was also conducted in the Yamato River and Osaka Bay, Japan. This report presents the current levels and distributions of OPEs as well as the historical trend of TDCPP. Some or all of OPEs studied here have been detected in the entire water samples over the monitoring period. It was clear that OPEs were ubiquitous pollutants in the river and coastal waters. Total OPE levels ranged from 0.4 to 2.4 µgl−1 in the Yodo River basin, 2.4 to 12 µgl−1 in the rivers in Osaka City, 18 to 28 µgl−1 in the Yamato River basin and 0.1 to 1.3 µgl−1 in Osaka Bay. An apparent difference was found in the individual OPE level among the different water areas surveyed. In the Lake Biwa and the Yodo River, the predominant compound was TBXP followed by TCEP and TDCPP. The higher levels were observed for TBXP, TEP, TCPP and TCEP in the rivers in Osaka City. The highest TCPP level, which occupied more than 70% of OPEs' composition, was observed and the mean level reached to 13.1µgl−1 in the Yamato River. In Osaka Bay, 6 kinds of OPEs, except for TPP, TEHP and TCP, were found and the most prevalent compounds were TCEP and TBP. TDCPP had gradually increased in concentration in the Yodo River basin until 1987 from 1976 year by year. However, the reverse trend of TDCPP has been noticed during the last several years.

scholarly journals Detection of epileptic activity in presumably normal EEG

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Sara Baldini ◽  
Francesca Pittau ◽  
Gwenael Birot ◽  
Vincent Rochas ◽  
Miralena I Tomescu ◽  
...  
Keyword(s):  
Focal Epilepsy ◽  
Epileptic Activity ◽  
Scalp Eeg ◽  
Vigilance State ◽  
Explained Variance ◽  
Long Term Monitoring ◽  
Interictal Discharges ◽  
The Individual ◽  
Term Monitoring

Abstract Monitoring epileptic activity in the absence of interictal discharges is a major need given the well-established lack of reliability of patients’ reports of their seizures. Up to now, there are no other tools than reviewing the seizure diary; however, seizures may not be remembered or dismissed voluntarily. In the present study, we set out to determine if EEG voltage maps of epileptogenic activity in individual patients can help to identify disease activity, even if their scalp EEG appears normal. Twenty-five patients with pharmacoresistant focal epilepsy were included. For each patient, 6 min of EEG with spikes (yes-spike) and without visually detectable epileptogenic discharges (no-spike) were selected from long-term monitoring recordings (EEG 31–37 channels). For each patient, we identified typical discharges, calculated their average and the corresponding scalp voltage map (‘spike-map’). We then fitted the spike-map for each patient on their (i) EEG epochs with visible spikes, (ii) epochs without any visible spike and (iii) EEGs of 48 controls. The global explained variance was used to estimate the presence of the spike-maps. The individual spike-map occurred more often in the spike-free EEGs of patients compared to EEGs of healthy controls (P = 0.001). Not surprisingly, this difference was higher if the EEGs contained spikes (P < 0.001). In patients, spike-maps were more frequent per second (P < 0.001) but with a shorter mean duration (P < 0.001) than in controls, for both no-spike and yes-spike EEGs. The amount of spike-maps was unrelated to clinical variables, like epilepsy severity, drug load or vigilance state. Voltage maps of spike activity are present very frequently in the scalp EEG of patients, even in presumably normal EEG. We conclude that spike-maps are a robust and potentially powerful marker to monitor subtle epileptogenic activity.

EMC Analysis by Land Use Types based on Long-term Monitoring of Nonpoint Source Pollution in Geum River Basin

2013 ◽  
Vol 13 (6) ◽  
pp. 411-422
Author(s):  
Jung Ho Lee ◽  
Yang Ho Song ◽  
Dongho Kim ◽  
Suyoung Park ◽  
Jiyeon Kim ◽  
...  
Keyword(s):  
Land Use ◽  
River Basin ◽  
Nonpoint Source Pollution ◽  
Nonpoint Source ◽  
Land Use Types ◽  
Long Term Monitoring ◽  
Term Monitoring

scholarly journals Bird fauna long-term monitoring in the Romanian lower Prut river basin

2010 ◽  
Vol 53 (1) ◽  
pp. 287-302
Author(s):  
Carmen Gache
Keyword(s):  
River Basin ◽  
Industrial Development ◽  
Bird Species ◽  
Breeding Bird ◽  
Limosa Limosa ◽  
Bird Fauna ◽  
Long Term Monitoring ◽  
Term Monitoring ◽  
Prut River

Bird fauna long-term monitoring in the Romanian lower Prut river basin In the present paper, we give data on the bird' fauna's dynamic during the last 18 years in the Romanian Lower Prut River basin. This valley shelters a good level of the biodiversity being very well protected through the border status, but due the low level of the industrial development, too, despite an increasing of the human pressure in the last years. We recorded in this area some very rare breeding bird species for Romania - Platalea leucorodia, Plegadis falcinellus, Limosa limosa, Recurvirostra avosetta, Himantopus himantopus, Luscinia svecica, etc. but also some globally threatened species like Phalacrocorax pygmeus, Aythya nyroca or Crex crex. In this sector of the Prut River basin three Important Birds Areas (IBA) were delimited, all included in the "Romanian Nature 2000 Network".

The Value of Monitoring Frozen Section–Permanent Section Correlation Data Over Time

2006 ◽  
Vol 130 (3) ◽  
pp. 337-342
Author(s):  
Stephen S. Raab ◽  
Joseph A. Tworek ◽  
Rhona Souers ◽  
Richard J. Zarbo
Keyword(s):  
Frozen Section ◽  
Linear Modeling ◽  
Improvement Program ◽  
Continuous Quality ◽  
Permanent Section ◽  
The Mean ◽  
Long Term Monitoring ◽  
Term Monitoring ◽  
Over Time

Abstract Context.—The effectiveness of the long-term monitoring of errors detected by frozen section–permanent section correlation is unknown. Objective.—To determine factors important in laboratory improvement in frozen section–permanent section discordant and deferral rates by participation in a multi-institutional continuous quality improvement program. Design.—Participants in the College of American Pathologists Q-Tracks program self-reported the number of anatomic pathology frozen–permanent section discordant and deferred cases in their laboratories by prospectively performing secondary review of intraoperative consultations. Laboratories participated in the program for 1 to 5 years and reported their data every quarter. We calculated mean and median discordant and deferred case frequencies and used mixed linear modeling to determine if length of participation in the program was associated with improved performance. Participants.—One hundred seventy-four laboratories self-reported data. Main Outcome Measures.—Mean frozen–permanent section discordant and deferred diagnostic frequencies and changes in these frequencies over time were measured. Results.—The mean and median frozen–permanent section discordant frequencies were 1.36% and 0.70%, respectively. The mean and median deferred diagnostic frequencies were 2.35% and 1.20%, respectively. Longer participation in the Q-Tracks program was significantly associated (P = .04) with lower discordant frequencies; 4- or 5-year participation showed a decrease in discordant frequency of 0.99%, whereas 1-year participation showed a decrease in discordant frequency of 0.84%. Longer participation in the Q-Tracks monitor was associated with lower microscopic sampling frequencies for discordant diagnoses (P = .04). Increased length of participation in the Q-Tracks program was significantly associated (P = .04) with lower deferred diagnostic frequencies. Conclusions.—Long-term monitoring of frozen–permanent section correlation is associated with sustained improvement in performance.

scholarly journals Long-Term Monitoring of the Antibody Response to a SARS-CoV-2 Infection

Diagnostics ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1915
Author(s):  
Václav Šimánek ◽  
Ladislav Pecen ◽  
Hana Řezáčková ◽  
Ondřej Topolčan ◽  
Karel Fajfrlík ◽  
...  
Keyword(s):  
Antibody Response ◽  
The West ◽  
Blood Samples ◽  
The Third ◽  
Antibody Positivity ◽  
The Mean ◽  
Long Term Monitoring ◽  
Term Monitoring ◽  
Pcr Test

A group of 110 patients from the West Bohemian region who had been infected with COVID-19 was monitored for the purposes of this study. We focused on cases of mild or moderate COVID-19; statistically the most likely to occur. Day zero was defined as the day on which a positive PCR test was first established. The mean length of observation was 6.5 months, the maximum length 12 months. The first blood samples were taken from a smaller cohort during the 1–3 months following the first positive PCR test. We assumed that SARS-CoV-2 antibodies would be present during this period and therefore a limited number of samples were taken for the purpose of detecting antibodies. More samples were collected, starting 4 months after the first positive PCR test. A subsequent set of blood samples were drawn, mostly 6 months after the first ones. Our study confirmed the presence of total IgG SARS-CoV-2 antibodies up to 1 year after the onset of the disease. The peak of antibody production was observed in the third month after the first positive PCR test. A mathematical estimate of the median duration of antibody positivity was calculated to be 18 months from the onset of the COVID-19 infection.

scholarly journals Long-term Monitoring of Vertical Water Quality in Northern Basin of Lake Biwa

2006 ◽  
Vol 29 (9) ◽  
pp. 565-568 ◽  
Author(s):  
Taizo TSUDA ◽  
Takahiro OKAMOTO ◽  
Naoki FUJIWARA ◽  
Tadataka NAKAMURA ◽  
Minoru YADA ◽  
...  
Keyword(s):  
Water Quality ◽  
Lake Biwa ◽  
Northern Basin ◽  
Long Term Monitoring ◽  
Term Monitoring
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