Determination of the trophic situation in Gheshlagh reservoir (North-Western Iran)

Abstract New determinations of ocean tides are extracted from high-rate Global Positioning System (GPS) solutions at nine stations sitting on the Ross Ice Shelf. Five are multi-year time series. Three older time series are only 2–3 weeks long. These are not ideal, but they are still useful because they provide the only in situ tide observations in that sector of the ice shelf. The long tide-gauge observations from Scott Base and Cape Roberts are also reanalysed. They allow determination of some previously neglected tidal phenomena in this region, such as third-degree tides, and they provide context for analysis of the shorter datasets. The semidiurnal tides are small at all sites, yet M2 undergoes a clear seasonal cycle, which was first noted by Sir George Darwin while studying measurements from the Discovery expedition. Darwin saw a much larger modulation than we observe, and we consider possible explanations - instrumental or climatic - for this difference.

Download Full-text

On the flora of honey plants of the Northern and Northwestern Altai regions within the Altai Territory

BIO Web of Conferences ◽

10.1051/bioconf/20191600013 ◽

2019 ◽

Vol 16 ◽

pp. 00013

Author(s):

Tatyana Kopytina ◽

Galina Nenasheva ◽

Marya Ivanova

Keyword(s):

Plant Species ◽

Botanical Composition ◽

Floristic Richness ◽

Maximum Content ◽

North Western

The revision of honey plants in the regions’ floras and nature objects is regularly made for estimation of melliferous capacity of the territory. The article is devoted to the investigation of the melliferous flora of Northern and North-Western Altai in the area of Altai Territory. The goal of the research was to reveal the botanical composition of authentic honeys. The representativeness of melliferous species among common floristic richness in the studied districts is the following: in Altaiskiy − 56.49 %, Smolenskiy − 60.17 %, Soloneshenskiy − 53.61 %, Charyshskiy − 44.57 %. The examples of the botanical content of samples typical for each of these districts have been shown. In the angelica (djagilevyj) honey from Altajskiy district the maximum content of pollen belongs to the representatives from Apiaceae family 78.86 %. For the angelica (djagilevyj) honeys from surveyed districts the high content of pollen from the families Asteracerae, Brassicaceae, Fabaceae, Rosaceae are typical with different percentage in the samples. The article provides information on examples of wild-growing plant species including relicts, potential melliferous which pollen can be used as “marker” for determination of honey as Altai-origin.

Download Full-text

Ships and their timber source as indicators of connections between regions

AmS-Skrifter ◽

10.31265/ams-skrifter.v0i27.264 ◽

2020 ◽

pp. 133-143

Author(s):

Aoife Daly

Keyword(s):

Western Europe ◽

The Baltic Sea ◽

The North ◽

Baltic Coast ◽

Art Objects ◽

The North Sea ◽

The Baltic ◽

North And South ◽

North Western

The precise dating and determination of the source of timbers in shipwrecks found around the coasts of the North Sea and the Baltic Sea, through dendrochronology allows us to see connections between north and south, east and west throughout the region and to a high chronological precision. In this paper we take a look at results of recent analyses of timber from ships, and timber and barrel cargoes, to try to draw a chronological picture, from the twelfth to seventeenth centuries, of links between regions, through transport in oak ships and trade of timber. Archaeological finds of oak from timber cargos in shipwrecks and fine art objects (painted panels and sculpture) show the extent to which timber was shipped from Hanseatic towns along the southern Baltic coast, to western and north-western Europe.

Download Full-text

The First Obsidian Source in North-Western Iran for Provenance of Local Prehistoric Lithic Artifacts

Journal of Research on Archaeometry ◽

10.29252/jra.5.1.1 ◽

2019 ◽

Vol 5 (1) ◽

pp. 1-15

Author(s):

Akbar Abedi ◽

◽

Bahram Vosough ◽

Mehdi Razani ◽

Masoud B. Kasiri ◽

...

Keyword(s):

Western Iran ◽

Lithic Artifacts ◽

Obsidian Source ◽

North Western

Download Full-text

5th-Century BC Himera and the Campanian Connection: Petrographic and Archaeological Studies on Western Greek Amphorae from Poseidonia and Elea Unearthed in the Necropolis of Himera

Minerals ◽

10.3390/min10030227 ◽

2020 ◽

Vol 10 (3) ◽

pp. 227 ◽

Cited By ~ 1

Author(s):

Alberto De Bonis ◽

Verena Gassner ◽

Theodoros Ntaflos ◽

Maria Luigia Rizzo ◽

Roman Sauer ◽

...

Keyword(s):

Central Mediterranean ◽

Polarised Light ◽

Depth Study ◽

Local Reference ◽

Western Sicily ◽

Transport Amphorae ◽

North Western ◽

Reference Samples ◽

Petrographic Investigation

Within the frame of an in-depth study of the corpus of about 560 western Greek transport amphorae (6th–5th century BC) yielded from excavations at the necropolis of the Dorian-Chalcidian colony of Himera in North-western Sicily, one of the most interesting issues consists in the determination of their provenance. Based on archaeological considerations, nearly 100 items have been attributed to southern Campania, specifically to Poseidonia and Elea. The present paper proposes a detailed combined archaeological-archaeometric investigation of 16 samples discovered at Himera and one at Jerba (Tunisia), of presumed Campanian provenance, compared with 4 local reference samples from Poseidonia and 6 samples of western Greek amphorae found at Pithekoussai and Elea, attributed to Poseidonia by previous archaeometric analysis. All samples have been submitted to a macroscopic fabric examination according to the standard methods of FACEM (Fabrics of the Central Mediterranean) and to petrographic investigation (polarised light microscopy) and digital image analyses of microstructures. Our study points to a Campanian provenance of the investigated amphorae and their distinction in a large group from Poseidonia and a small group from Elea. The identification of a numerous assemblage of 5th century BC Poseidonian transport vessels at Himera substantially underlines an earlier hypothesis about its ‘Campanian connection’ and allows for the reconstruction of an important Tyrrhenian commercial axis.

Download Full-text

Contact and Conflict in north-western Iran

Iranica Antiqua ◽

10.2143/ia.29.0.630123 ◽

1994 ◽

Vol 29 (0) ◽

pp. 47-62 ◽

Cited By ~ 1

Author(s):

Ch. BURNEY

Keyword(s):

Western Iran ◽

North Western

Download Full-text

Determination of gross alpha and beta activity concentrations in drinking waters in Bursa region of north-western Turkey

Desalination and Water Treatment ◽

10.1080/19443994.2012.691956 ◽

2012 ◽

Vol 45 (1-3) ◽

pp. 21-25 ◽

Cited By ~ 6

Author(s):

Halim Taskin ◽

Erol Kam ◽

Ahmet Bozkurt

Keyword(s):

Beta Activity ◽

Gross Alpha ◽

Western Turkey ◽

Activity Concentrations ◽

Drinking Waters ◽

Gross Alpha And Beta ◽

North Western

Download Full-text

Molecular and morphological characterisation of Aphelenchoides kheirii n. sp. (Nematoda: Aphelenchoididae) isolated from Pinus nigra in north-western Iran

Nematology ◽

10.1163/15685411-00003182 ◽

2018 ◽

Vol 20 (9) ◽

pp. 877-888

Author(s):

Behrouz Golhasan ◽

Ramin Heydari ◽

Mehrab Esmaeili ◽

Natsumi Kanzaki

Keyword(s):

New Species ◽

Large Subunit ◽

Pinus Nigra ◽

Small Subunit ◽

Similar Species ◽

Western Iran ◽

Lateral Lines ◽

Pine Trees ◽

Group 2 ◽

North Western

Summary Aphelenchoides kheirii n. sp. was isolated during a survey of nematodes associated with bark samples of pine trees (Pinus nigra) in West Azerbaijan province, north-western Iran. The new species has a body length of 500 (448-520) μm in the female and 442 (402-480) μm in the male. The cuticle is weakly annulated with four lateral lines and the lip region is offset. The stylet is 10.4 (10-11) μm long with small basal swellings and the excretory pore located immediately posterior to base of metacorpus; hemizonid invisible. The post-vulval uterine sac length 37.7 (28-45) μm. Spicules are relatively short (18-20 μm in dorsal limb) and the end of the dorsal limb clearly curved ventrally like a hook. The male tail has usual three pairs of caudal papillae (2 + 2 + 2) and a well-developed mucron. The female tail is conical, terminating in a complicated step-like projection, usually with many tiny nodular protuberances. The new species belongs to the Group 2 category of Aphelenchoides species sensu Shahina in which ten known species among Groups 2 and 4 sensu Shahina, namely: A. arcticus, A. blastophthorus, A. fuchsi, A. parasaprophilus, A. paraxui, A. xui, A. dactylocercus, A. gynotylurus, A. iranicus and A. saprophilus are the most similar species. Phylogenetic analysis based on small subunit (SSU) and partial large subunit (LSU) sequences of rRNA supported the morphological results.

Download Full-text