scholarly journals Nest Association between Camponotus fallax (Hymenoptera: Formicidae) and Vespa crabro (Hymenoptera: Vespidae) in Central Iberian Peninsula

Sociobiology ◽  
2019 ◽  
Vol 66 (3) ◽  
pp. 523
Author(s):  
Carlos Mora-Rubio ◽  
José Luis Pérez-Bote ◽  
Jaime Muriel
Keyword(s):  
Iberian Peninsula ◽  
Breeding Season ◽  
Social Wasps ◽  
Central Spain ◽  
Vespa Crabro ◽  
Nest Boxes ◽  
Nest Association ◽  
First Case ◽  
Avian Nest ◽  
Made In

Because social wasps often defend their nests by inflicting painful stings or bites, some animals associate with them looking for protection against potential predators. Some neotropical vespids are known to maintain associations with other insect and vertebrate taxa, such as birds and bats, however there are not previous records about associations between ants and hornets in Europe. In this study, we reported the first case of association between the arboreal ant Camponotus fallax and the European hornet Vespa crabro in Europe. The observations were made in Central Spain, where two colonies of C. fallax were found in two different avian nest-boxes inhabited by V. crabro when spotless starlings finished their breeding season. The reasons of this possible association are also discussed.

scholarly journals The Control of Cigarette Weight During the Manufacturing Process/Die Kontrolle des Gewichtes von Cigaretten auf den Produktionsmaschinen

1973 ◽  
Vol 7 (1) ◽  
Author(s):  
G. Moretti
Keyword(s):  
Manufacturing Process ◽  
A Posteriori ◽  
Basic Principles ◽  
First Case ◽  
External Causes ◽  
Made In

AbstractThe check of the cigarette weight can be made “a posteriori”, that is when a certain number of cigarettes has been manufactured, and then it is aimed at verifying the acceptability of the lot. Conversely, it can also be executed during the manufacturing process in order to produce acceptable cigarettes. In the first case the ordinary statistical theories can be applied, whereas in the second case, which is the more interesting from cigarette manufacturers' viewpoint, Wiener's theories must be applied on both checks and servo-mechanisms. Consequently, it is necessary to revise the basic principles of the "check'' and then those of the operation of weight-governors in order to attain the highest possible precision, regardless of the external causes which might affect the result. So, the idea of ''self-optimizing'' governors is assumed, that is regulators adjusting their own action to obtain the best results. Molins, Decoufle and, lately, the Industrial Nucleonic Corp., though not having yet developed an adaptive adjuster, have made in recent times the most significant efforts in this field.

scholarly journals External supravesical hernia is a rare type of abdominal wall hernia: A case report

2017 ◽  
Vol 7 (1) ◽  
pp. 40-41 ◽  
Author(s):  
Pankaj Kumar Saha ◽  
Ratna Rani Roy ◽  
Mohammad Emrul Hasan Khan ◽  
Md Mamunur Rahman ◽  
Kazi Shafiqul Alam ◽  
...  
Keyword(s):  
Case Report ◽  
Inguinal Hernia ◽  
Abdominal Wall ◽  
Abdominal Wall Hernia ◽  
Surgical Anatomy ◽  
Rare Type ◽  
First Case ◽  
Made In

The first case of external supravesical hernia was made in 1804; but it is so rare that it is very difficult to find any case reported in Bangladesh. Here a case of external supravesical hernia is described in a male who was presented with a left sided direct incomplete reducible inguinal hernia. This report aims to review and discuss the surgical anatomy of these rare supravesical hernias and calls attention to the confusing presentation and treatment of this conditionJ Shaheed Suhrawardy Med Coll, 2015; 7(1):40-41

scholarly journals Biometrics as a determinant of the origins of seabirds killed in oil spills and other incidents

2008 ◽  
Vol 18 (3) ◽  
pp. 229-241 ◽  
Author(s):  
Robert T. Barrett ◽  
Tycho Anker-Nilssen ◽  
Vidar Bakken ◽  
Hallvard Strøm ◽  
Yuri Krasnov ◽  
...  
Keyword(s):  
Breeding Season ◽  
Oil Spills ◽  
Russian Population ◽  
Systematic Variation ◽  
Critically Endangered ◽  
Body Measurements ◽  
Reasonable Accuracy ◽  
Norwegian Population ◽  
Brunnich’S Guillemot ◽  
Made In

AbstractCommon Guillemots Uria aalge and Brünnich's Guillemots U. lomvia are common victims of oil spills, drowning in fishing nets and winter wrecks. Because the Norwegian population of Common Guillemots is classified as critically endangered and the Russian population of the Brünnich's Guillemot has declined greatly, it is important to be able to identify the origins of birds killed outside the breeding season. Measurements of birds made in nine colonies in the Barents and Norwegian Seas showed that although it is impossible to determine with reasonable accuracy the colony of origin from body measurements, the most likely sea of origin of Common Guillemots may be determined on the basis of wing and head + bill lengths, whereas there was no systematic variation in any measurement of Brünnich's Guillemots.

scholarly journals Un conjunto de arreos de bronce de la colección Juan Cabré: aportaciones al estudio del atalaje ecuestre en la Protohistoria Ibérica = A Set of Bronze Horse Bits in the Juan Cabré Museum: A Contribution to the Study of Equestrian Harness in Iberian Iron Age

2018 ◽  
pp. 49 ◽  
Author(s):  
Javier Jiménez Ávila
Keyword(s):  
Iberian Peninsula ◽  
Iron Age ◽  
Early Iron Age ◽  
Península Ibérica ◽  
Made In ◽  
The Way

Se estudia un conjunto de objetos formado por dos embocaduras de caballo y dos camas laterales de bronce conservados en el Museo Juan Cabré de Calaceite (Teruel). Corresponden a la colección que reunió D. Juan Cabré Aguiló y que, a su muerte, fue dividida entre sus dos hijos. No se conocen datos acerca de su procedencia ni sobre el modo en que llegaron los objetos a la colección, pero la calidad del material y la escasez de este tipo de productos en la arqueología peninsular elevan su interés. De su estudio se deriva su relación con un conjunto de arreos que se producen y se usan en la península ibérica a finales de la I Edad del Hierro y que cuenta con buenas representaciones en la Extremadura post-orientalizante y en la Alta Andalucía ibérica, particularmente en la zona de Jaén.An equestrian set composed by two bronze horse bits and two bit guards, also made in bronze, is studied. They are preserved in the Juan Cabré Museum (Calaceite, Spain) corresponding to the collection gathered by the Spanish archaeologist Juan Cabré Aguiló (1882-1947). Data about origin or the way that such objects came to the Cabré Collection are unknown, but their quality and the shortage of this type of objects in the Iberian archaeology underline their interest. The study shows a near relationship with a kind of bronze harnesses that were produced and used in Iberian Peninsula at the end of the Early Iron Age. This kind of bits have good references in the post-Orientalizing Extremadura and in the Iberian high Andalusia, particularly in the Jaén area.

Chronology of fluvial terrace sequences for large Atlantic rivers in the Iberian Peninsula (Upper Tagus and Duero drainage basins, Central Spain)

2017 ◽  
Vol 166 ◽  
pp. 188-203 ◽  
Author(s):  
Pablo G. Silva ◽  
Elvira Roquero ◽  
Mario López-Recio ◽  
Pedro Huerta ◽  
Antonio M. Martínez-Graña
Keyword(s):  
Iberian Peninsula ◽  
Drainage Basins ◽  
Central Spain ◽  
Fluvial Terrace

Assessment of turbulent scales over complex terrain in central Spain

2020 ◽  
Author(s):  
Félix García-Pereira ◽  
Gregorio Maqueda
Keyword(s):  
Complex Terrain ◽  
Spectral Characteristics ◽  
Monitoring Network ◽  
Heat Fluxes ◽  
Inertial Subrange ◽  
Central Spain ◽  
Integral Scales ◽  
First Case ◽  
Synoptic Forcing ◽  
Turbulent Scales

<p>In this work, a micrometeorological assessment of Atmospheric Boundary Layer paremeters is carried out in order to determine the characteristic turbulent scales over complex terrain in the Sierra de Guadarrama, a range in central Spain. Observational data series of temperature and wind velocity measured at high frecuency (10 Hz) are available. These data come from two different stations located in the Bosque de La Herrería and belonging to GuMNet (2020) (Guadarrama Monitoring Network).</p><p>Integral scales, both time and spatial, have been determined for different atmospheric conditions, defined by parameters such as wind direction or stability of stratification. Also, energy cascade phenomenon occurence is assessed. In order to carry this out, different time series analysis tools are used, such as autocorrelation functions in time, and normalised power spectra or wavelets. Results obtained are compared with previous works.</p><p>In general, results show that under no synoptic forcing there is a clear dependency on diurnal cycle, giving rise to the development of big integral scales at nighttime, while they are small during the day. When synoptic forcing prevails, the scales are also small, both at daytime and nighttime. Moreover, a correlation patterns method has been implemented for scales obtained at two different heights (4 and 8 meters) on the one hand and at two locations on the other. In the first case, integral scales are highly correlated, exceeding the threshold of 0.5. In the second case, temporal scales show high correlation values, but spatial ones do not.  In addition, the slopes of the spectra in the inertial subrange have  been obtained and compared to those over homogeneous terrain (Kaimal et al., 1972), getting similar results for velocity turbulent components but not in case of vertical kinematic momentum and heat fluxes.</p><p> </p><p><strong>References</strong></p><p>GuMNet: Guadarrama Monitoring Network (UCM), https://www.ucm.es/gumnet/, 2020.</p><p>Kaimal, J. C., Wyngaard, J. C., Izumi, Y., and Coté, O. R.: Spectral characteristics of surface- layer turbulence, Quart. J. R. Met. Soc., 98, 563–589, 1972.</p>

Southern Flying Squirrels (Glaucomys volans) as Major Predators of Avian Nest Boxes in Conecuh National Forest, Alabama

2019 ◽  
Vol 18 (3) ◽  
pp. 476
Author(s):  
Brett A. DeGregorio ◽  
Jinelle H. Sperry ◽  
Daniel G. Kovar ◽  
David A. Steen
Keyword(s):  
National Forest ◽  
Glaucomys Volans ◽  
Flying Squirrels ◽  
Nest Boxes ◽  
Avian Nest

Sclerophora peronella new to the Iberian Peninsula

2004 ◽  
Vol 36 (3-4) ◽  
pp. 265-267 ◽  
Author(s):  
Guillermo Amo ◽  
Ana Rosa Burgaz
Keyword(s):  
Iberian Peninsula ◽  
Fagus Sylvatica ◽  
Research Group ◽  
Southern Europe ◽  
Central Spain ◽  
Beech Forests ◽  
The Third ◽  
Natural Reserve ◽  
First Time

An interesting calicioid lichen has been collected as a consequence of the study that our research group is developing in the Iberian meridional beech forests. One of these is the forest Natural Reserve “Chaparral de Montejo” (Madrid Province), which represents one of the southern biogeographic limits of Fagus sylvatica in the Iberian Peninsula. The geological substratum is Silurian clayey slate. It is located in the Supramediterranean belt of central Spain. Sclerophora peronella has been found for the first time in the Iberian Peninsula and for the third time in southern Europe. The previous records in S Europe are from Calabria (Italy) by Puntillo (1992) and from Corse (France) by Vězda (Lich. Sel. Exs. 828).

scholarly journals The attractive factor in the settlement of Ophelia bicornis Savigny

1954 ◽  
Vol 33 (2) ◽  
pp. 361-380 ◽  
Author(s):  
Douglas P. Wilson
Keyword(s):  
Breeding Season ◽  
Made In

Largely as a result of experiments made in 1951, sands were classed as attractive, neutral or repellent (Wilson, 1953 a); but only after the 1952 experiments had been completed did it become reasonably certain that the sands in which the larvae of Ophelia bicornis Savigny readily settle carry an attractive factor apparently distinct from a repellent one present in sands in which they will not settle (Wilson, 1953 b). Whilst the precise natures of the factors were uncertain, it seemed probable that they both derive from organic activity. The 1953 breeding season was devoted to an attempt to obtain more information about the attractive factor.

Astrolabes for the King: The Astrolabe of Petrus Raimundi of Barcelona

2017 ◽  
Vol 23 (1-5) ◽  
pp. 421-443 ◽  
Author(s):  
Azucena Hernández
Keyword(s):  
Iberian Peninsula ◽  
Middle Ages ◽  
Full Description ◽  
Scientific Instruments ◽  
Made In ◽  
The Middle Ages

Abstract The astrolabe of Petrus Raimundi, made in Barcelona in 1375, occupies a significant position in the set of medieval Spanish astrolabes with Latin inscriptions, as it is the only one signed and dated that has survived to the present day. A full description and study of the astrolabe is presented in the context of the support given to the manufacturing of scientific instruments by King Peter iv of Aragon. Although the astronomical and time reckoning features of the astrolabe are fully detailed, special attention is given to its artistic and decorative features. The relationships between Petrus Raimundi’s astrolabe and those manufactured in al-Andalus, the region under Islamic rule within the Iberian Peninsula in the Middle Ages, are highlighted, as well as the links with astrolabe production in other European Christian kingdoms. The role played by astrolabes in medicine is considered and first steps are taken towards discovering the identity of Petrus Raimundi.

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