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Cattle breeds - contemporary views on their origin and criteria for classification: a review

100%

Gulinski P.

Acta Scientiarum Polonorum. Zootechnica

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2021

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tom 20

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nr 2

2

The origin and relations of the anterior choroidal artery: an anatomical study

86%

Uz A., Erbil K. M., Esmer A. F.

Folia Morphologica

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2005

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tom 64

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nr 4

269-272

There has recently been an increase in surgical interventions to the inferior temporal lobe. The aim of the present study is to examine the anatomical structure and relations of the anterior choroidal artery, which extends to this region. A mixture of latex and ink was injected into the internal carotid and basilar arteries of 15 brains from fresh cadavers. In 18 out of 30 cases (60%) the anterior choroidal artery arose from the posteroinferior aspect of the internal carotid artery, in 8 (22.2%) from the posterolateral aspect and in 4 (2%) from its anterior part. The diameter of the anterior choroidal artery was 0.94 mm on average (0.7–1.2) and the average distance from the posterior communicating artery was 5.3 mm (3.8–8 mm); its distance to the bifurcation of the carotid was found to be 4.0 mm on average (2.2–8 mm). The cisternal segment of the anterior choroidal artery and the optic tract formed a neurovascular bundle. The branches arising from the plexal segment supply the lateral geniculate body, the thalamus and the optic tract. The resulting knowledge of the neurovascular relations of the anterior choroidal artery provides a safe surgical approach to the inferior temporal lobe.

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The origins of the cochlea and impedance matching hearing in synapsids

72%

Laaß M.

Acta Palaeontologica Polonica

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2016

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tom 61

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nr 2

The origin of tympanic hearing in early synapsids is still controversial, because little is known about their inner ear and the function of their sound conducting apparatus. Here I describe the earliest known tympanic ear in the synapsid lineage, the ear of Pristerodon (Therapsida, Anomodontia) from the Late Permian of South Africa, which was virtually reconstructed from neutron tomographic data. Although Pristerodon is not a direct ancestor of mammals, its inner ear with distinctive cochlear cavity represents a connecting link between the primitive therapsid inner ear and the mammalian inner ear. The anatomy of the sound conducting apparatus of Pristerodon and the increased sound pressure transformer ratio points to a sensitivity to airborne sound. Furthermore, the origins of the cochlea and impedance matching hearing in synapsids coincided with the loss of contact between head and substrate, which already took place at least in Late Permian therapsids even before the postdentary bones became detached from the mandible.

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The origin and age of “huge alluvial fans” in the Eastern part of the Warsaw-Berlin Pradolina

72%

Klajnert Z., Kobojek E.

Quaestiones Geographicae

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2003

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tom 22

5

Crinoid ancestry without blastozoans

72%

Guensburg T. E., Blake D. B., Sprinkle J., Mooi R.

Acta Palaeontologica Polonica

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2016

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tom 61

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nr 2

At present, a debate in the paleontologic literature focuses on whether or not the immediate ancestry of the Crinoidea lies in an unidentified member of the Blastozoa, which includes eocrinoids and an assemblage known variously as the “cystoids”. Those proposing to derive crinoids from within the blastozoans have recently argued for homologies in the construction of the oral region of certain derived taxa from both groups. An opposing viewpoint, outlined here, finds evidence that aside from plesiomorphies, proposed similarities are superficial and homoplastic. We suggest these superficialities represent convergent adaptive strategies. Earliest crinoids express ambulacral traits unlike any blastozoan but that are expressed in the only other pentaradial echinoderms with a known record early enough to be considered in the context of crinoid origins, edrioasteroids and edrioasteroid-like stem echinoderms.

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The dependency of the quality and size structure and of the value of timber on the origin and age of stands

72%

Barszcz A.

Electronic Journal of Polish Agricultural Universities. Series: Forestry

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2004

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tom 07

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nr 2

7

The ecological structure of the bryoflora of Wroclaw's parks and cemeteries in relation to their localization and origin

58%

Fudali E.

Acta Societatis Botanicorum Poloniae

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2001

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tom 70

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nr 3

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The Buddhism's view on biotechnology

58%

Wachowicz P.

Biotechnologia

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2005

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nr 1

9

Certyfikat ECC

44%

D.N.

Biuletyn Informacyjny Ośrodka Badawczo-Rozwojowego Przemysłu Płyt Drewnopochodnych w Czarnej Wodzie

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2015

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tom 56

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nr 3-4

Ograniczanie wyników

Cattle breeds - contemporary views on their origin and criteria for classification: a review

The origin and relations of the anterior choroidal artery: an anatomical study

The origins of the cochlea and impedance matching hearing in synapsids

The origin and age of “huge alluvial fans” in the Eastern part of the Warsaw-Berlin Pradolina

Crinoid ancestry without blastozoans

The dependency of the quality and size structure and of the value of timber on the origin and age of stands

The ecological structure of the bryoflora of Wroclaw's parks and cemeteries in relation to their localization and origin

The Buddhism's view on biotechnology

Certyfikat ECC