385 research outputs found
A revision of the Lower Cretaceous foraminiferal genus Falsogaudryinella from northwest Europe and Romania, and its relationship to Uvigerinammina
We emend the definition of the foraminiferal genus Falsogaudryinella Bartenstein, 1977 based on
observations of the type species, F. tealbyensis from the Barremian Lower Tealby Clay of
Lincolnshire, U.K. The genus was described by Loeblich & Tappan (1987) as having initial triserial
coiling which reduces to biserial and finally uniserial. However, topotype specimens display high
trochospiral coiling in the microsphaeric generation, with at least four chambers in the initial
whorl. The genus, therefore, does not belong in the family Verneuilinidae, but must be transferred
to the Prolixoplectidae. The wall is solid, non-canaliculate. The connections between chambers are
in the form of tubes that extend from the basal part of the chamber lumina toward a terminal
aperture. This tubular connection is partially separated from the main part of the chamber lumina
by a septum. The presence of this tubular connection in F. tealbyensis is closely analogous to that
observed in the type species of Uvigerinammina Majzon, 1943. The two genera, therefore, are
separated mainly on the basis of cement type, with Falsogaudryinella possessing calcareous cement
and Uvigerinammina organic cement.
We illustrate five species of Falsogaudryinella from the Barremian of Lincolnshire, the U.K.
sector of the Central North Sea, and from the Barremian and the Albian of Romania (F. neagui
Bartenstein, 1981, F. praemoesiana n.sp. F. tealbyensis (Bartenstein, 1956), F. xenogena n.sp. and F.
moesiana (Neagu, 1966)). Our investigations reveal that upper Hauterivian to Barremian specimens
from the North Sea that have been previously regarded as F. moesiana (e.g. King et al., 1989) in fact
belong in a new species, Falsogaudryinella praemoesiana n.sp. A second new species, Falsogaudryinella
xenogena n.sp. is described from the Barremian of the Central North Sea. Evolution within the mid-
Cretaceous Falsogaudryinella group appears to progress by reduction of the terminal uniserial part,
since the coiling in the stratigraphically youngest form (F. moesiana) is predominantly triserial. Our
interpretations of the phylogeny of the Cretaceous Falsogaudryinella and Uvigerinammina lineages
are presented
Clustering and percolation in lithium borate glasses
Journal URL: http://jcp.aip.org/jcp/staff.js
The workshops and working areas of Minoan Crete : the evidence of the palace and town of Zakros for a comparative study
3 volsSIGLEAvailable from British Library Document Supply Centre- DSC:DX85980 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
Valoarea PSA-ului în depistarea şi terapia cancerului de prostată
Summary
The serum levels of the PSA were determined in 150 patients with signs and symptoms of the disease and the sensitivity of the PSA values was studied in the diagnosis of prostate cancer (PC). The average age of the beginning of the disease was 68.2±0.5 years. In 49 patients (32.7%) PC was d e
tected. In 9 (18.4%) cases the results were false negative. The average level of PCA in PC was of 44.2
ng/ml vs 8.6 ng/ml in BPH, and in PC the level ranged from 1.2 to 161 ng/ml. The results demonstrate
that the annual screening of men aged 45-50 years is necessary for early detection of PC
Контрастный градиент метаморфизма: Барровенский тип относительно высокобарических преобразований на примере северной окраины Гондваны (СЗ Иберия)
Контрастный метаморфизм в соседних террейнах характерен для крупномасштабных тектонических событий, которые включают сценарии как коллизии, так и рифтинга, когда один из этих террейнов характеризуется наличием пород высокого давления. Он, скорее всего, будет связан обычно в местах, близких к сутурным зонам. Примером этих комплексов в геодинамическо
Our experience in acute pyelonephritis treatment in pregnancy
Secţia Urologie IMSP Spitalul Clinic Republican, Catedra Urologie şi Nefrologie Chirurgicală USMF „N.Testemiţanu”, Al V-lea Congres de Urologie, Dializă şi Transplant Renal din Republica Moldova cu participare internaţională (1-13 iunie 2011)Summary. It is known that during the pregnant morbidity the extragenital pathology is ranked on the first place. Although the pregnancy is a physiologic phenomenon, the vulnerability of the organism in pregnancy is increasing, especially the cardiovascular system that should ensure a complex sanguine circuit – placenta, and of the kidneys that should detoxify a supplemental weight of fetus. The renal pathology in pregnancy occupies the second rank between extrauterine pathologies. Under the influence of some factors, the increasing of PNA in pregnant patients could be observed. Pyelonephritis in pregnancy is a complicated condition with no clear evolution and not very good prognosis for both - the mother and fetus. 49 pregnant patients were evaluated with PNA. In all cases, a treatment was adjusted with favorable results, that included ureteral catheterization and insertion of autostatic stent like JJ stent. The PNA treatment in pregnancy implies the JJ stent insertion, that has an essential role in decompression of renal pelvis and have minimal risk of complications. This contributes to reduction of treatment duration with antibiotics
Aphrati and Kato Syme: Pottery, Continuity, and Cult in Late Archaic and Classical Crete
The analysis of ceramics from Aphrati sheds valuable new light on the history of this Cretan settlement and on its relationship with a nearby rural sanctuary at Kato Syme in the Late Archaic and Classical periods. It has long been held that Aphrati was deserted from ca. 600 to 400 B.C. A pottery deposit from the domestic quarter, however, now supports occupation of the city during this period. A ceramic classification system is presented and the morphological development and absolute chronology of several key shapes at Aphrati and Kato Syme are plotted. Historical implications of the ceramic evidence are also explored
Managing risks to drivers in road transport
This report presents a number of case studies in managing risks to road transport drivers. The cases feature a variety of initiatives and interventions to protect drivers.In the road transport sector, as with any other, it is important to pay attention to working conditions in order to ensure a skilled and motivated workforce. Certain characteristics of the sector make it more difficult to practice risk management than in other sectors. But by taking account of how the sector operates in practice, and the characteristics of drivers themselves and the way they work, risks can be successfully manage
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