scholarly journals Magnetic variation analysis for the June 1993 seismic events in Central Italy

1997 ◽  
Vol 40 (2) ◽  
Author(s):  
T. Ernst ◽  
R. Teisseyre ◽  
A. Meloni ◽  
P. Palangio ◽  
M. Marchetti
Keyword(s):  
Scientific Collaboration ◽  
Central Italy ◽  
Magnetic Observatory ◽  
Time Interval ◽  
Magnetic Variation ◽  
The Individual ◽  
First Time ◽  
The Magnetic Field ◽  
Long Term Measurement

A scientific collaboration between the Istituto Nazionale di Geofisica (Italy) and the Warsaw Academy of Science (Poland) gave rise to the installation of a few stations for the long-term measurement of magnetotelluric fields in Central Italy. The investigation sites were determined following the individual seismic interest of each location. For this project, the magnetic observatory in L'Aquila was also equipped with electric lines, for simultaneous measurements of the telluric field. After a few years of experience some of the installed stations had to be removed for their high noise level that made this study almost impossible. A first time interval was considered from January 1992 to February 1993 and showed the existence of significant changes in magnetotelluric parameters related to earthquake occurrence time, an extension of that analysis was made to include the event of June 1993 using the magnetic field time variation.

scholarly journals Central Italy magnetotelluric investigation. Structures and relations to seismic events: analysis of initial data

1996 ◽  
Vol 39 (1) ◽  
Author(s):  
A. Meloni ◽  
P. Palangio ◽  
M. Marchetti ◽  
E. Teisseyre ◽  
J. Marianiuk ◽  
...  
Keyword(s):  
Scientific Collaboration ◽  
Temporal Evolution ◽  
Central Italy ◽  
Magnetic Observatory ◽  
Characteristic Parameters ◽  
Released Energy ◽  
The Individual ◽  
Long Term Measurement ◽  
Selection Of

A scientific collaboration between the Warsaw Academy of Science, (Poland) and the National Institute of Geophysics (Italy), gave rise to the installation of few stations for the long term measurement of magnetotelluric fields in central Italy. The selection of investigation sites was determined by the individual seismic interest of each location. The project began in the summer of 1991, with the installation of 2 magnetotelluric stations in the province of Isernia, (Collemeluccio and Montedimezzo). In 1992, 2 more stations became operative, one in the province of Rieti, (Fassinoro), the other in the province of L'Aquila, (S. Vittoria). For the purpose of this project, the magnetic observatory in L'Aquila was also equipped with electric lines, for the measurement of the telluric field. The aim of the analysis here presented, is to show that is possible to follow the temporal evolution of magnetotelluric characteristic parameters. At Collemeluccio this evolution was compared with the seismic released energy for events recorded within the study area.

scholarly journals Effects of sickness absence on disability pension risk: Finnish register study of two native groups

2019 ◽  
Vol 29 (Supplement_4) ◽  
Author(s):  
K Reini ◽  
J Klein ◽  
J Saarela
Keyword(s):  
Sickness Absence ◽  
Work Ability ◽  
Disability Pension ◽  
Medical Certificate ◽  
Language Groups ◽  
Random Samples ◽  
The Individual ◽  
First Time ◽  
Risk Pattern

Abstract Background Sickness absence and disability pension have a close connection and both describe the health of working-aged populations. The aim of this paper was to study if Swedish and Finnish speakers differ in the risk of disability pension after first-time sickness absence. This may reveal new aspects how to support health and work ability promotion activities. Methods The longitudinal register data used come from Statistics Finland. They consist of random samples of 5 % of all Finnish speakers and 20 % of all Swedish speakers, observed throughout the period 1989-2010. The analyses concerned non-retired individuals aged 16-60 years who were under risk of first-time sickness absence that extended 10 days. Discrete-time hazard models were estimated to both language groups to evaluate how first-time sickness absence, time since absence, length of absence, and various socio-economic control variables affected the disability pension risk. Results The disability pension risk was extremely high immediately after the sickness absence receipt and remained elevated thereafter approximately 20 times higher as compared to non-recipients. A strong interrelation between first-time sickness absence and the risk of subsequent disability pension was found for both language groups and the risk was persistent in the very long term. The risk pattern looked similar to both Swedish and Finnish speakers and we did not observe any differences between women and men. Conclusions Paid sickness absence is illustrative of strong health selection and a notable risk for reduced work ability even in the more distant future. The currently implemented policies in Finland, which require statements about rehabilitation plans soon after individuals have entered a sickness spell, can be considered beneficial for both the individual and society. Comparison of the language groups shows that the disability pension process after sickness absence is operating similarly to both groups. Key messages Sickness absence requiring medical certificate is an indicator of possible long-term work disability. Timing of rehabilitation process during the sickness absence is critical.

LMC X–4: Different Types of Long-Term Variability

2017 ◽  
Vol 14 (S339) ◽  
pp. 146-146
Author(s):  
S. Molkov
Keyword(s):  
Binary Systems ◽  
Noise Model ◽  
High Mass ◽  
Time Interval ◽  
Spin Torque ◽  
X Ray ◽  
Spin Period ◽  
Different Types ◽  
First Time

AbstractThis talk presented a summary of our study of different types of long-term variability in the high-mass X-ray binary LMC X-4, by taking advantage of more than 43 years of measurements in the X-ray domain. In particular, we investigated the 30-day cycle of modulation of the X-ray emission from the source (super-orbital or precessional variability), and refined the orbital period and its first derivative. We showed that the precession period in the time-interval 1991–2015 is near its equilibrium value of Psup = 30.370 days, while the observed historical changes in the phase of this variability can be interpreted in terms of the ‘red noise’ model. We obtained an analytical law from which the precession phase can be determined to within 5% throughout the entire time-interval under consideration. Our analysis revealed for the first time that the source is displaying near-periodic variations of its spin period, on a time-scale of roughly 6.8 years, thus making LMC X-4 one of the (few) known binary systems that show remarkable long-term spin–torque reversals.

The `Dynamic Transcutaneous Po2 Histogram' or How to Deal with Immense Quantities of Monitoring Data

PEDIATRICS ◽  
1985 ◽  
Vol 75 (3) ◽  
pp. 608-613
Author(s):  
F. FALLENSTEIN ◽  
H. U. BUCHER ◽  
R. HUCH ◽  
A. HUCH
Keyword(s):  
Newborn Infants ◽  
Time Interval ◽  
Transcutaneous Oxygen ◽  
Clinical Procedures ◽  
Sick Newborn ◽  
Paper Chart ◽  
Transcutaneous Oxygen Pressure ◽  
Long Term Measurement ◽  
Transcutaneous Po2

Monitoring of transcutaneous oxygen pressure (Po2) is a routine procedure in the management of sick newborn infants. The clinician frequently requires information on trends in transcutaneous Po2 and variability in relation to clinical procedures. However, long-term measurement of transcutaneous Po2 presents problems with documentation and analysis of the data (Fig 1).1-9 PRINCIPLE OF TRANSCUTANEOUS Po2 HISTOGRAM To analyze transcutaneous Po2 information in a simple and efficient way, one can observe the frequency distribution of measured transcutaneous Po2 values within a desired time interval, instead of examining a long paper chart from a trend recorder. This method is shown in Fig 2.

scholarly journals Seasonal dependence of semidiurnal equatorial magnetic variation during quiet and disturbed periods

2019 ◽  
Vol 127 ◽  
pp. 02025
Author(s):  
Akiko Fujimoto ◽  
Akimasa Yoshikawa ◽  
Teiji Uozumi ◽  
Shuji Abe
Keyword(s):  
Moon Phase ◽  
Magnetic Variation ◽  
Semidiurnal Variation ◽  
New Moon ◽  
Weak Structure ◽  
Electric Filed ◽  
Tidal Variations ◽  
First Time ◽  
Seasonal Dependence

The analysis of 20-year long-term semidiurnal lunar tidal variations gave the evidence that the semidiurnal variations are completely different between the magnetic quiet and disturbed periods. This is the first time that the seasonal dependence of disturbance-time semidiurnal variation has been provided from the analysis of the EE-index. We found the Kp dependence of semidiurnal variation: For full and new moon phase, counter troughs are amplified during disturbance time, possibly related to disturbance dynamo. For all moon phase, there are positive enhancements in dawn and strong depressions after sunset, resulting from the penetration of polar electric filed. For Seasonal dependence, semidiurnal variations are divided to three seasonal groups, and characterized as deep trough, enhanced crest and weak structure for D-solstice, Equinoxes and J-solstice, respectively. There is no significant longitudinal difference between Ancon and Davao, except for the amplitude of semidiurnal variations. The deep troughs occur during D-solstice and the enhanced crests during Equinoxes, at both Ancon and Davao.

scholarly journals Long-term memory of individual identity in ant queens

2007 ◽  
Vol 3 (5) ◽  
pp. 459-462 ◽  
Author(s):  
Stephanie Dreier ◽  
Jelle S van Zweden ◽  
Patrizia D'Ettorre
Keyword(s):  
Social Life ◽  
Individual Recognition ◽  
Evolution Of Cooperation ◽  
Long Term Memory ◽  
Individual Identity ◽  
Term Memory ◽  
The Individual ◽  
The Cost ◽  
First Time

Remembering individual identities is part of our own everyday social life. Surprisingly, this ability has recently been shown in two social insects. While paper wasps recognize each other individually through their facial markings, the ant, Pachycondyla villosa , uses chemical cues. In both species, individual recognition is adaptive since it facilitates the maintenance of stable dominance hierarchies among individuals, and thus reduces the cost of conflict within these small societies. Here, we investigated individual recognition in Pachycondyla ants by quantifying the level of aggression between pairs of familiar or unfamiliar queens over time. We show that unrelated founding queens of P. villosa and Pachycondyla inversa store information on the individual identity of other queens and can retrieve it from memory after 24 h of separation. Thus, we have documented for the first time that long-term memory of individual identity is present and functional in ants. This novel finding represents an advance in our understanding of the mechanism determining the evolution of cooperation among unrelated individuals.

scholarly journals Memory for Individual Items is Related to Non-Reinforced Preference Change

2019 ◽  
Author(s):  
Rotem Botvinik-Nezer ◽  
Akram Bakkour ◽  
Tom Salomon ◽  
Daphna Shohamy ◽  
Tom Schonberg
Keyword(s):  
Decision Making ◽  
Behavioral Interventions ◽  
Training Session ◽  
Preference Change ◽  
Approach Training ◽  
Item Level ◽  
Short And Long Term ◽  
The Individual ◽  
First Time

AbstractIt is commonly assumed that memories contribute to value-based decisions. Surprisingly, most theories of value-based decision-making do not account for memory influences on choice. Recently, new interest has emerged in the interactions between these two fundamental processes, mainly using reinforcement-based paradigms. Here, we aimed to study the role memory processes play in non-reinforced preference change. We used the cue-approach training (CAT) paradigm, that is specifically designed to influence choices without external reinforcements. Instead, the paradigm uses the mere association of cued items with a speeded motor response. Previous studies with this task showed that a single training session induces a long-lasting effect of enhanced preferences for high-value trained stimuli, that is maintained for several months. We hypothesized that CAT influences memory accessibility for trained items, leading to enhanced accessibility of their positive associative memories and in turn to preference changes. In two pre-registered experiments, we tested whether memory for trained items was enhanced following CAT, in the short- and long-term, and whether memory modifications are related to choices. We found that memory was enhanced for trained items and that better memory was correlated with enhanced preferences at the individual item level, both immediately and one month following CAT. Our findings show, for the first time, that memory plays a central role in value-based decision-making, even in the absence of external reinforcements. These findings contribute to new theories relating memory and value-based decision-making and set the ground for the implementation of novel behavioral interventions for long-lasting behavioral change.

scholarly journals Seasoned Equity Offerings as Technical Market Anomalies: Long-Term Temporal Trading Functionalities

2016 ◽  
Vol 9 (1) ◽  
pp. 96
Author(s):  
Vasiliki A. Basdekidou
Keyword(s):  
Corporate Finance ◽  
Seasoned Equity Offerings ◽  
Living System ◽  
Equity Offerings ◽  
Short Term ◽  
Market Anomalies ◽  
Smart Money ◽  
The Individual ◽  
First Time

<p>The main goal of this paper is to approach the Seasoned Equity Offerings (SEO) trading opportunities as technical market anomalies and under the prism of a number of temporal (time-based) long-term trading functionalities (long-term TTF) introduced for the first time in corporate finance literature. The long-term is defined, for the purposes of this paper, as the 3-year time period, traded usually with daily, weekly and monthly time-frames. Trading is a temporal (i.e. time-based) historical living system with a number of functions, like: SEO, IPO, stock (instrument) price action Gaps, Breakouts, etc. In this domain, a number of warning long-term and short-term dynamics timing functionalities is available, like: candlestick patterns breaks, price action patterns pivotal-lines breaks, on open gup-ups (ooGUp), on open gup-downs (ooGDn), morning breakouts (mB), etc. All these time-based functionalities are regarded as 2<sup>nd</sup> level functions (i.e. functions of functions; because of the timing involved) with great trading opportunities, and they are defined –for the first time in the corporate finance literature- by this paper as temporal (timing) trading functionalities. In particular, the SEOs with the embedded long-term TTF functionalities are great trading opportunities for the institutions, the individual (non-commercial) market investors, the swing traders, and the speculators. Data analysis shows that during the seasoned equity offerings time, shareowners significantly increase their share-holding, including offerings that would be classified as overpriced at that time; hence, the involved trading volatility is increased resulting in great trading and profit opportunities. This paper contributes to corporate finance literature by examining the SEOs functions and define and document their inherit TTF functionalities. For this purpose, four categories of share-holders are regarded: The long-term institution &amp; non-commercial traders (investors), the swing momentary institution traders (institutions), the short-term non-commercial traders (speculators) and the intraday non-commercial traders (speculators). Paper concludes that, in SEO/long-term TTF trading, apart from the insiders, the swing traders (usually the smart-money and the institutions) are more benefited, at the expense of momentary short-term and intraday speculators, while the long-term investors are not affected by the SEO offerings.</p>

Starters and Bacteriophages in Lactic Acid Casein Manufacture

1975 ◽  
Vol 38 (5) ◽  
pp. 275-278 ◽  
Author(s):  
T. D. THOMAS ◽  
R. J. LOWRIE
Keyword(s):  
Lactic Acid ◽  
New Zealand ◽  
Acid Production ◽  
Continuous Selection ◽  
Streptococcus Cremoris ◽  
Selection For ◽  
The Individual ◽  
First Time ◽  
Selection Of

A controlled starter system was used for the first time in commercial lactic acid casein manufacture in New Zealand. Multiple starters of up to four components were constructed from 18 recently derived Streptococcus cremoris isolates which were not lysed by any of the phages in the collection of the New Zealand Dairy Research Institute. During the first season of casein manufacture, phages attacking 17 isolates were detected in the casein whey. Of these, 12 prevented adequate acid production by the appropriate host even at levels below 1 phage per 10 to 1000 ml in the milk before starter addition. In contrast, the first detected phages attacking the other five isolates did not significantly influence the rate of acid development; use of these starters continued until phages which eliminated acid production appeared. An alternative starter system based on the continuous selection of “phage-tolerant” cultures was investigated. Regular addition of whey, from previous manufacture, to the individual mother cultures of each component permitted long-term use of the multiple starter. This procedure of continued selection for phage-tolerant organisms has been used successfully for a complete season in a major casein factory.

Long-term validation of the SAD PERSONS scale for prediction of repeat self-harm in A&E patients with and without a prior self-harm history

2017 ◽  
Vol 41 (S1) ◽  
pp. S510-S510
Author(s):  
Y. Zakaria ◽  
A. Mitchell
Keyword(s):  
Past History ◽  
First Episode ◽  
Hospital Record ◽  
Self Harm ◽  
Future Self ◽  
Competing Interest ◽  
The Individual ◽  
First Time

ObjectiveRepeated self-harm is difficult to predict particularly in the long-term. Scales that help identify risk of repetition are widely used, and the most popular is the modified SAD PERSONS scale (mSPS). We aimed to clarify the accuracy of the mSPS in first time and non-first time patients presenting with self-harm with an extended follow-up period of observation.MethodWe conducted the UK's first long-term prospective risk prediction study of patients to an Accident and Emergency (A&E) department. We followed up 774 patients for a mean period of 7.4 years. At the time of study 429 patients presented with their first episode of self-harm and 345 had a hospital record of past history of self-harm.ResultsDuring 7.4 years of follow-up 54.7% of those who initially presented with self-harm represented with a repeat self-harm episode. Four hundred and twenty-one patients had a mSPS score less than 6 (low risk), 260 had a score between 6 and 8 (moderate risk) and 94 scored 9 or higher usually notated as high risk. The clinical utility of the mSPS was “poor” for predicting future self-harm but at cut-offs ≥7 it was “fair” for predicting non-repetition. Of the individual questions in the mSPS, a positive answer to “stated future wishes” was a true positive in 74.0%.ConclusionsWe found the mSPS was a relatively poor indicator of future self-harm risk in a long term follow-up of patients who self-harmed regardless of hospital record of previous self-harm history. However, mSPS did have modest value in predicting non-repetition.Disclosure of interestThe authors have not supplied their declaration of competing interest.

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