Conglomérats polygéniques ophiolitiques: anciens éboulis de talus de fond océanique?

1981 ◽  
Vol 18 (3) ◽  
pp. 619-623 ◽  
Author(s):  
Réjean Hébert
Keyword(s):  
Ocean Bottom ◽  
Field Observations ◽  
Sedimentary Processes ◽  
Working Hypothesis ◽  
Common Slope ◽  
Internal Structures ◽  
The Common ◽  
Eastern Townships

Field observations on the polygenetic conglomerates associated with the ophiolitic complexes in the Eastern Townships are comparable to those on the common slope facies in the present-day ocean bottom. Sedimentary processes (submarine erosion, deposition) are probably responsible for the internal structures of the conglomerates. This working hypothesis replaces the explosion-origin interpretation previously proposed. [Journal Translation]

scholarly journals Roman to Middle Age Earthquakes Sourced by the 1980 Irpinia Fault: Historical, Archaeoseismological, and Paleoseismological Hints

Geosciences ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 286
Author(s):  
Paolo Galli
Keyword(s):  
Middle Age ◽  
Fault System ◽  
Historical Period ◽  
Seismogenic Structure ◽  
Working Hypothesis ◽  
First Millennium ◽  
The Common ◽  
Common Era ◽  
Written Sources

The Italian seismic compilations are among the most complete and back-in time extended worldwide, with earthquakes on record even before the Common Era. However, we have surely lost the memory of dozen strong events of the historical period, mostly in the first millennium CE. Given the lack of certain or conclusive written sources, besides paleoseismological investigations, a complementary way to infer the occurrence of lost earthquakes is to cross-check archaeoseismic evidence from ancient settlements. This usually happens by investigating collapses/restorations/reconstructions of buildings, the general re-organization of the urban texture, or even the abrupt abandonment of the settlement. Exceptionally, epigraphs mentioning more or less explicitly the effects of the earthquake strengthened the field working hypothesis. Here, I deal with both paleoseismological clues from the Monte Marzano Fault System (the structure responsible for the catastrophic, Mw 6.9 1980 earthquake) and archaeoseismological evidence of settlements founded in its surroundings to cast light on two poorly known earthquakes that occurred at the onset and at the end of the first millennium CE, likely in 62 and in 989 CE. Both should share the same seismogenic structure and the size of the 1980 event (Mw 6.9).

Variability of Peak Hour Factor at Intersections

2005 ◽  
Vol 1920 (1) ◽  
pp. 125-130 ◽  
Author(s):  
Andrew P. Tarko ◽  
Rafael I. Perez-Cartagena
Keyword(s):  
Flow Rate ◽  
Field Measurements ◽  
Past Research ◽  
Time Of Day ◽  
Strong Impact ◽  
Field Observations ◽  
Average Value ◽  
The Common ◽  
Multiple Field ◽  
Over Time

A peak hour factor (PHF) is used to convert hourly traffic volume into the flow rate that represents the busiest 15 min of the rush hour. Past research indicated that PHF had a strong impact on traffic analysis results. The common practice is to use a default value recommended by national or local guidelines or to use limited field observations. This paper investigates the variability of PHF over time and across locations. The day-to-day variability of PHF was found to be as strong as the site-to-site variability. This finding prompts estimation of the PHF on the basis of multiple field measurements or, when it is not possible to obtain measurements, for the use of a model that returns the average value of PHF. This paper presents such a model, which links PHF with the hourly volume, population, and time of day. The paper demonstrates that a large portion of the variability in the sample of observations either can be explained with the model or can be attributed to the day-to-day fluctuation.

scholarly journals NOTES ON PREDACEOUS HETEROPTERA, WITH PROF. UHLER'S DESCRIPTION OF TWO SPECIES

1897 ◽  
Vol 29 (5) ◽  
pp. 115-118
Author(s):  
A. H. Kirkland
Keyword(s):  
Gypsy Moth ◽  
Food Supply ◽  
The Other ◽  
Field Observations ◽  
Large Numbers ◽  
Porthetria Dispar ◽  
The Common ◽  
Tent Caterpillars ◽  
Tent Caterpillar

During the month of May, 1896, while making field observations in Malden and Medford, Mass., upon the insects known to attack the gypsy moth (Porthetria dispar), I found that many of the common predaceous bugs upon emerging from hibernation greedily availed themselves of the food supply offered by the tent caterpillar and destroyed large numbers of this insect. Podisus placidus, P. serieventris, P. modestus, Dendrocoris humeralis, Euschistus fissilis, E. tristigmus, E. ictericus, E. politus n. sp., Menecles insertus and Diplodus lividus were often found feeding upon partially grown tent caterpillars. Podisus placidus and P. serieventris enter the tents and prey upon the inmates, but the other species generally attacked the larvæ while they were feeding. The species of Euschistus are the least predaceous and it is probable that they naturally feed more upon plants than upon insects.

Magic of signs: a non-local interpretation of homeopathy

2000 ◽  
Vol 89 (03) ◽  
pp. 127-140 ◽  
Author(s):  
H Walach
Keyword(s):  
Clinical Research ◽  
Empirical Research ◽  
Informational Content ◽  
Self Healing ◽  
High Dilution ◽  
Working Hypothesis ◽  
Non Local ◽  
The Common ◽  
Homeopathic Remedies ◽  
Repetitive Pattern

AbstractAmong homeopaths the common idea about a working hypothesis for homeopathic effects seems to be that, during the potentization process, ‘information’ or ‘energy’ is being preserved or even enhanced in homeopathic remedies. The organism is said to be able to pick up this information, which in turn will stimulate the organism into a self-healing response. According to this view the decisive element of homeopathic therapy is the remedy which locally contains and conveys this information. I question this view for empirical and theoretical reasons. Empirical research has shown a repetitive pattern, in fundamental and clinical research alike: there are many anomalies in high-dilution research and clinical homeopathic trials which will set any observing researcher thinking. But no single paradigm has proved stable enough in order to produce repeatable results independent of the researcher. I conclude that the database is too weak and contradictory to substantiate a local interpretation of homeopathy, in which the remedy is endowed with causal-informational content irrespective of the circumstances. I propose a non-local interpretation to understand the anomalies along the lines of Jung's notion of synchronicity and make some predictions following this analysis.

scholarly journals Converted-wave azimuth moveout

Geophysics ◽  
2006 ◽  
Vol 71 (3) ◽  
pp. S99-S110
Author(s):  
Daniel A. Rosales ◽  
Biondo Biondi
Keyword(s):  
Seismic Data ◽  
Extreme Case ◽  
Ocean Bottom ◽  
Sampled Data ◽  
Computationally Efficient ◽  
Converted Wave ◽  
Data Set ◽  
Prestack Migration ◽  
Conversion Point ◽  
The Common

A new partial-prestack migration operator to manipulate multicomponent data, called converted-wave azimuth moveout (PS-AMO), transforms converted-wave prestack data with an arbitrary offset and azimuth to equivalent data with a new offset and azimuth position. This operator is a sequential application of converted-wave dip moveout and its inverse. As expected, PS-AMO reduces to the known expression of AMO for the extreme case when the P velocity is the same as the S velocity. Moreover, PS-AMO preserves the resolution of dipping events and internally applies a correction for the lateral shift between the common-midpoint and the common-reflection/conversion point. An implementation of PS-AMO in the log-stretch frequency-wavenumber domain is computationally efficient. The main applications for the PS-AMO operator are geometry regularization, data-reduction through partial stacking, and interpolation of unevenly sampled data. We test our PS-AMO operator by solving 3D acquisition geometry-regularization problems for multicomponent, ocean-bottom seismic data. The geometry-regularization problem is defined as a regularized least-squares-objective function. To preserve the resolution of dipping events, the regularization term uses the PS-AMO operator. Application of this methodology on a portion of the Alba 3D, multicomponent, ocean-bottom seismic data set shows that we can satisfactorily obtain an interpolated data set that honors the physics of converted waves.

scholarly journals Altai in the light of the cult of the mountain and sky: to the problem of the origin of the toponym

2020 ◽  
Vol 10 ◽  
pp. 20-23
Author(s):  
V. E. Vasiliev ◽  
Keyword(s):  
Bronze Age ◽  
Ethnic Groups ◽  
Close Similarity ◽  
Close Connection ◽  
Working Hypothesis ◽  
The Common ◽  
Sacred Mountain ◽  
The Universe ◽  
The Bronze Age ◽  
Shed Light

The article suggests a working hypothesis that the root of the toponym «Altai” is the semantics of the sacred mountain, which at the tribal, tribal, and then national-ethnic level symbolizes the sacred center of the universe, associated with the cults of ancestors and deities. The ethnographic materials of T. D. Dyrenkova testify to the close connection of the cult of mountains with the spirits-ancestors of shamans, who acted as defenders of the genus and tribe of the Turks of the Altai-Sayan highlands. This information, in our opinion, is confirmed by etymological experience of comparisons of Turkic-Mongol and partly tunguso-Manchu terms. The semantic unity or close similarity of the concepts of mountain, ancestors and sky can shed light on the archaic beliefs of the Turkic ethnic groups, whose shamanism dates back to the common Altaic layer of culture. Thus, it can be assumed that the cult of the sacred Altai existed in the Neolithic past, even before the bronze age and the culture of the early nomads of the Scytho-Saka world.

Observations of an aggregation between two species of Australian elapid snakes: the threatened Little Whip Snake Parasuta flagellum and Common Eastern Brown Snake Pseudonaja textilis

2020 ◽  
Author(s):  
Nicole A. Hansen ◽  
Damon L. Oliver
Keyword(s):  
Experimental Research ◽  
Nature Reserve ◽  
Short Note ◽  
Monitoring Program ◽  
Food Competition ◽  
Field Observations ◽  
The Common ◽  
Whip Snake

This short note presents field observations of a pair of adult threatened Little Whip Snakes Parasuta flagellum and a pair of juvenile Common Eastern Brown Snakes Pseudonaja textilis in an aggregation beneath artificially placed Masonite board used in the Turallo Nature Reserve long-term Little Whip Snake monitoring program. The observation represents the first documented record of an interspecific aggregation between these two species. Presumably, there may be thermal or anti-predatory advantages for the Little Whip Snake by aggregating with other snakes, particularly when both species are of a similar size. However, similar behaviours may also have fitness disadvantages including food competition, and potentially predation as the Common Eastern Brown Snake neonates grow and surpass the substantially smaller Little Whip Snake and warrants further experimental research.

scholarly journals Understanding the Concept of Neighbourhood in Kigali City, Rwanda

2020 ◽  
Vol 12 (4) ◽  
pp. 1555 ◽  
Author(s):  
Gideon Baffoe ◽  
Josephine Malonza ◽  
Vincent Manirakiza ◽  
Leon Mugabe
Keyword(s):  
Relevant Literature ◽  
Physical Models ◽  
Field Observations ◽  
Social Interventions ◽  
Daunting Task ◽  
The Common ◽  
The One ◽  
Mixed Types ◽  
Research And Policy ◽  
Country Specific

Though the relevance of the concept of neighbourhood in both research and policy oriented circles is unquestionable, the concept remains contested and fluid, making its operationalisation a daunting task, particularly in practice. This study explores how the concept of neighbourhood has been operationalised in Kigali city and how the neighbourhood boundaries and typologies are defined. The paper dwells on the review of relevant literature, interviews with 25 practitioners and field observations. It is argued that neighbourhood conceptualisation in Kigali is both theory—it bears the common aspects of neighbourhood definitions—and practice driven, reflecting modernity and context. On the one hand, modernity suggests the desire of planning authorities to follow contemporary planning practices. Context, on the other hand, reflects the desire to tailor local policies to country specific challenges. While boundaries follow subjective, administrative and physical models, typologies tend to be overly physical, focusing mainly on housing structures. The study identified three conventional neighbourhood typologies—planned, informal and mixed types. Given the predominance of informal and mixed neighbourhoods, this study further argues that such areas form the ‘bedroom’ and ‘transit point’ for most lower- and middle-class workers, in addition to serving as a ‘laboratory’ for testing various social interventions. The study recommends a well-serviced mixed classification typology to foster a strong sense of belongingness.

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