نتایج جستجو برای: sickles
تعداد نتایج: 76 فیلتر نتایج به سال:
Abstract The Drassburg Bronze Age hoard find (approx. 25 kg) also comprises some sickles and sickle fragments. One of these fragments was provided for metallographic examinations. A XRF analysis revealed 94.5 wt.% Cu, 4.31 Sn, 0.61 Pb, 0.12 S in the alloy. It can therefore be attributed to tin bronzes. material has a uniform dendritic microstructure. Higher concentrations S, Pb were measured in...
These data are from the pre-deregulation days of the U.S. domestic airline industry. The data are an extension of Caves, Christensen, and Trethaway (1980) and Trethaway and Windle (1983). The original raw data set is a balanced panel of 25 firms observed over 15 years (1970-1984). After removing observations because of strikes, mergers, and missing values, the panel becomes an unbalanced one wi...
In measuring productivity in the presence of undesirable outputs, traditional growth accounting and index number approaches face the problem that prices of the undesirable outputs typically do not exist since such outputs are generally not marketed. In this paper we employ an alternative measure of total factor productivity based on a generalization of the Shephard distance functions, namely wh...
Gyrodactylus orecchiae sp. n. (Monogenea, Gyrodactylidae) is described from the skin, fins, eyes and gills of juvenile Sparus aurata L. (gilthead seabream) following two outbreaks of gyrodactylosis amongst stocks held in inshore floating cages on the Adriatic coast of Albania and Croatia. Fish were heavily infected (1000+ gyrodactylids/fish) with G. orecchiae which reportedly resulted in approx...
Automated adaptations of dithionite and urea-dithionite tube tests are accurate, reliable, inexpensive methods for detecting hemoglobin S. More than 3,000 individuals have been screened (120 determinations per hour; reagent cost, 2 to 4 cents per test). The dithionite reagent consists of potassium phosphate, sodium dithionite, and saponin. When S hemoglobin contacts this reagent, the red cells ...
The purpose of the paper is to present features development ironworking Volga-Kama periphery Eastern European part Barbarikum on basis data obtained during metallographic study forged pieces related materials Imenkovo culture (V–VII centuries), that were found in different years (mainly by P.N. Starostin 1960s–80s) Shcherbet I settlement destroyed reservoir. Schemes and methods making 31 items ...
United Nations Educational, Scientific and Cultural Organization (UNESCO) has identified craft as an intangible cultural heritage in the Convention for Safeguarding of Intangible Heritage. The nature this is that it must be practiced by living craftspeople to endure, when performed very few, can seen endangered. This research, funded Carl-Göran Adelswärds Foundation, a documentation such craft:...
India has the second highest area under sugarcane cultivation next to Brazil. Sugarcane is cultivated in an of 4.5 million ha with average productivity 79 t/ha. Sustainable Initiative (SSI) one advanced methods technique that involves, use less input like seed sett, water, land, labour and optimum utilization fertilizers achieve maximum yield. Removal mother shoot main techniques SSI get even n...
Gyrodactylus molweni sp. n. is described from the body surface and fins of South African mullet, Chelon richardsonii (Smith, 1846) collected Table Bay Harbour, Cape Town compared to five other species grey mullets globally namely G. zhukovi Ling, 1963 mugili Zhukov, 1970 Planiliza haematocheila (Temminck Schlegel, 1845); mugelus Rawson, 1973 Mugil cephalus L.; curemae Conroy Conroy, 1985 curema...
The origin of cereal domestication is a key current issue archaeological research in the Fertile Crescent. Archaeobotanical evidence highlights complex scenario for when and where agricultural practices started. Gloss texture analysis sickle blades with confocal microscopy represents new contribution to knowledge this process. A previous study (Ibáñez et al., 2016) pointed Middle Euphrates Leva...
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