Paleoenvironments of the Marmara Sea (Turkey) Coasts from paleontological and sedimentological data

The faunal composition of Upper Pleistocene-Holocene sedimentary sections was investigated from several boreholes in the coastal areas of the northern and eastern Marmara Sea. The boreholes penetrated to pre-Quaternary basement and contain sediments deposited in near-shore environments, such as lagoons, estuaries and deltas. During the post-glacial transgression, rapidly rising sea level drowned these littoral areas, progressively transforming into their present form over the last 9.5-10 ka BP (uncalib.). Thus the lower Kucukcekmece valley became a lagoon, while the Golden Horn became an estuary. On the northeast coast, the Kurbagali delta was submerged. When the rate of sea level rise decreased at about 5000-6000 years ago, the influence of Mediterranean water on the faunal assemblage was surpassed by salinity tolerant forms, probably due to increased freshwater and sediment input on land. (c) 2007 Elsevier Ltd and INQUA. All rights reserved

Reply to Discussion: a critique of Possible waterways between the Marmara Sea and the Black Sea in the late Quaternary: evidence from ostracod and foraminifer assemblages in lakes Iznik and Sapanca, Turkey, Geo-Marine Letters, 2011

WOS: 000304137200007In their discussion of our 2011 paper dealing with possible waterways between the Marmara Sea and the Black Sea in the "late" Quaternary, based on data from ostracod and foraminifer assemblages in lakes A degrees znik and Sapanca, Turkey, YaltA +/- rak et al. (Geo-Mar Lett 32:267-274, 2012) essentially reject the idea of any links whatsoever, be they between the Marmara Sea and the lakes A degrees znik and Sapanca, or further to the Black Sea via the valley of the Sakarya River. The evidence they provide in support of their view, however, is essentially circumstantial, in part conjectural, and also inconclusive considering the findings in favour of linkage between the Marmara Sea and the lakes at the very least, while the proposed connection with the Sakarya River valley remains speculative because of the lack of unambiguous data. On the other hand, YaltA +/- rak et al. (Geo-Mar Lett 32:267-274, 2012) do raise valid points of concern which deserve careful future investigation, the most important being the possibility of sample contamination from dumped marine sediment used for construction purposes along some parts of the shore of Lake A degrees znik. We agree that a concerted multidisciplinary effort is required to address the many unresolved issues in connection with the potential waterways proposed by us and others before us

Moving target detection using super-resolution algorithms with an ultra wideband radar

We present subspace based detection algorithms for detecting moving targets applied to the data collected by an ultra wideband radar system. Combining the results of time reversal MUSIC algorithm and delay estimation MUSIC methods resulted in successful localization of targets. We have investigated methods to resolve the ambiguities in target detection and we performed experiments using two targets to test the effectiveness of the algorithms

Biogeographic distribution of rudists and benthic foraminifera: An approach to Campanian-Maastrichtian palaeobiogeography of Turkey

Transgressive sequences of Campanian-Maastrichtian Stages in Turkey generally begin with medium- to coarse-grained clastics and continue with shallow marine limestones, reefal limestones and then open marine rhythmic fine-grained clastics. These mixed siliciclastic-carbonate sequences are observed on three main platforms known as Rhodope-Pontide (RPP), Anatolide-Tauride (ATP) and Arabian (AP). New species of the rudist genera Gorjanovicia, Radiolites, Sauvagesia, Durania and Sabinia are observed on the RPP. Yvaniella and Ugarella are only found on this platform. Orbitoides gruenbachensis Papp is the most abundant species of benthic foraminifera on the RPP. Cideina soezerii (Sirel), Dizerina anatolica Meric, Helicorbitoides boluensis Sirel, Ilgazina unilateralis Erdogan, Nummofallotia kastamonica Ozgen-Erdem, Selimina spinalis Inan, Sirelina orduensis Meric and Inan, Smoutina cruysi Drooger are also observed on this platform. Rudist and benthic foraminifera on the ATP have both high diversity and abundance in comparison with RPP and AP faunas. Genus and species diversity of the rudist fauna is quite high: 17 genera and 36 species are described. New rudist genera such as Darendeella, Kurtinia and Balabania and many new species of Radiolitidae and Hippuritidae may be restricted to this platform. Characteristic larger benthic foraminifera contain 18 genera and 37 species. Among benthic foraminifera Loftusia ketini Meric, L. turcica Meric and Avsar, Postomphalocyclus merici Inan and Pseudoedomia hekimhanensis Gormus are also likely restricted to this platform. Rudist diversity on the AP is poor. Four endemic genera (Vautrinia, Dictyoptychus, Paracaprinula and Hatayia) and two species (Hippurites syriaca Vautrin, Pironaea syriaca Vautrin) characterize the fauna on this platform. Loftusia diversity and abundance among the benthic foraminifera is quite high. Arnaudella grossouvreii Douville, Discyclina schlumbergeri Munier-Chalmas, Loftusia harrisoni Cox, L. elongata Cox, L. matsumaruii Meric and Gormus and Pseudorbitolina marthae Douville are only documented from southeastern Anatolia. Biogeographic distributions of rudist and benthic foraminifera show different faunal associations on the three main platforms (RPP, ATP and AP). Our data from both rudist and benthic foraminifera indicate that different faunal associations and existence of restricted genera and species may be associated with a deep marine barrier to circulation during the Campanian-Maastrichtian. Southern and northern branches of the Neotethyan Ocean are considered to be barriers in preventing migration of the species. (C) 2009 Elsevier Masson SAS. All rights reserved

The complete type of suprapatellar plica and lipoma arborescens: a case report

Lipoma arborescens is a rare intra-articular benign lesion. It is characterized by villous lipomatous proliferation of the synovial tissue and its etiology is not certain. Clinical presentation is usually longstanding, painless and slowly progressive swelling of the related joint. Magnetic resonance imaging plays an important role in diagnosis. Diagnosis can be determined by hypertrophied synovial tissue with synovial lining cells containing adipose tissue on examination using a light microscope. The synovial plica of the knee is formed during the embryogenic phase of development. This development is incomplete in many individuals. When the synovial plica of the knee persists, it is transformed into an embryonic relic that is located in either the suprapatellar or midpatellar region of the knee

A preliminary study on the distribution and morphology of microplastics in the coastal areas of Istanbul, the metropolitan city of Turkey: The effect of location differences

Microplastics (MP) pollution has emerged in the last 10 years as an interesting topic of research worldwide. However, microplastic pollution is a new multidisciplinary subject that encompasses many unknowns and enters different fields of science. Research carried out in Turkey on the subject is quite limited and remained on a small scale covering only several stations most of the time.This paper aims to study microplastics distribution, type, and color in 43 stations within the Marmara Sea. The novelty of this work is due to the selection of the stations which cover marine (MRN), pier (PIER), stream (STR), sea discharge (SD), and deep-sea discharge (DSD) stations. The effect of the seawater physicochemical characteristics on microplastics distribution was statistically studied using the Pearson's product momentum correlation coefficient. The highest microplastics abundance was for pier stations (3497.02 particle/km2) and the lowest was for marine stations (276.1857 particle/km2)

Endoscopic versus Open Bursectomy for Prepatellar and Olecranon Bursitis

Objective

Endoscopic versus Open Bursectomy for Prepatellar and Olecranon Bursitis

Objective