scholarly journals An Acheulean biface from the Deh Luran Plain, Iran

Antiquity ◽  
2017 ◽  
Vol 91 (357) ◽  
Author(s):  
Mohsen Zeynivand

In 1960, Robert Braidwood discovered, by chance, an Acheulean biface at Gakia, Kermanshah Province, in the Zagros Mountains of western Iran (Braidwood 1960). Since then, only around ten Lower Palaeolithic sites have been identified on the Iranian Plateau, most of which are open-air sites (see Biglari & Shidrang 2006). Despite growing interest in the Palaeolithic of Iran over the past decade, studies generally continue to focus on particular sites and are largely concerned with the technology and typology of raw materials. A major problem for studies of the Lower Palaeolithic, in particular, is the rarity of cave sites, making it very difficult to study the behaviour of the early hominids through excavation. This paper reports the discovery of an Acheulean biface during a survey of the Deh Luran Plain to the south of the plateau, adding to the picture of human dispersal during the Pleistocene.

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2237 ◽  
Author(s):  
P. R. Sarika ◽  
Paul Nancarrow ◽  
Abdulrahman Khansaheb ◽  
Taleb Ibrahim

Phenol–formaldehyde (PF) resin continues to dominate the resin industry more than 100 years after its first synthesis. Its versatile properties such as thermal stability, chemical resistance, fire resistance, and dimensional stability make it a suitable material for a wide range of applications. PF resins have been used in the wood industry as adhesives, in paints and coatings, and in the aerospace, construction, and building industries as composites and foams. Currently, petroleum is the key source of raw materials used in manufacturing PF resin. However, increasing environmental pollution and fossil fuel depletion have driven industries to seek sustainable alternatives to petroleum based raw materials. Over the past decade, researchers have replaced phenol and formaldehyde with sustainable materials such as lignin, tannin, cardanol, hydroxymethylfurfural, and glyoxal to produce bio-based PF resin. Several synthesis modifications are currently under investigation towards improving the properties of bio-based phenolic resin. This review discusses recent developments in the synthesis of PF resins, particularly those created from sustainable raw material substitutes, and modifications applied to the synthetic route in order to improve the mechanical properties.


Author(s):  
Kyle R. Clem ◽  
Ryan L. Fogt ◽  
John Turner ◽  
Benjamin R. Lintner ◽  
Gareth J. Marshall ◽  
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Author(s):  
David Worth

Over the past 30 years in Western Australia (WA), there has been heated debate about the future use of the remaining karri and jarrah forests in the south-west of the State. This debate revolves around policy proposals from two social movements: one wants to preserve as much of the remaining old-growth forests as possible, and an opposing movement supports a continued


2019 ◽  
Vol 56 (12) ◽  
pp. 1347-1365 ◽  
Author(s):  
Vahid Teknik ◽  
Abdolreza Ghods ◽  
Hans Thybo ◽  
Irina M. Artemieva

We present a new 2D crustal-scale model of the northwestern Iranian plateau based on gravity–magnetic modeling along the 500 km long China–Iran Geological and Geophysical Survey in the Iranian plateau (CIGSIP) seismic profile across major tectonic provinces of Iran from the Arabian plate into the South Caspian Basin (SCB). The seismic P-wave receiver function (RF) model along the profile is used to constrain major crustal boundaries in the density model. Our 2D crustal model shows significant variation in the sedimentary thickness, Moho depth, and the depth and extent of intra-crustal interfaces. The Main Recent Fault (MRF) between the Arabian crust and the overriding central Iran crust dips at approximately 13° towards the northeast to a depth of about 40 km. The geometry of the MRF suggests about 150 km of underthrusting of the Arabian plate beneath central Iran. Our results indicate the presence of a high-density lower crustal layer beneath Zagros. We identify a new crustal-scale suture beneath the Tarom valley between the South Caspian Basin crust and Central Iran and the Alborz. This suture is associated with sharp variation in Moho depth, topography, and magnetic anomalies, and is underlain by a 20 km thick high-density crustal root at 35–55 km depth. The high-density lower crust in Alborz and Zagros may be related to partial eclogitization of crustal roots below about 40 km depth. The gravity and magnetic models indicate a highly extended continental crust for the SCB crust along the profile. Low observed magnetic susceptibility of the Kermanshah ophiolites likely indicates that the ophiolite rocks only form a thin layer that has been thrust over the sedimentary cover.


1996 ◽  
Vol 2 (2) ◽  
pp. 18-39 ◽  
Author(s):  
Florian Beigel ◽  
Philip Christou

A two stage international landscape and urban regeneration design competition was held last year for the site of a former Brikettfabrik at Witznitz near Borna in the south Leipzig region of Germany. The design of the winning entry was based on architectural, urban and landscape design strategies developed over the past five years. This paper opens with an introduction to these ideas and related theoretical precedents. There follows a description of the project's context and of the design itself.


2021 ◽  
Vol 2 (2) ◽  
pp. 89-96
Author(s):  
Lailah Fujianti ◽  
Shinta Budi Astuti ◽  
Rizki Ramadhan Putra Yasa

Abstrak   Kemuning adalah desa di kecamatan Ngargoyoso, Kabupaten Karanganyar, Provinsi Jawa Tengah. Secara geografis batas Desa Kemuning  sebelah barat berbatasan dengan Desa Ngargoyoso, sebelah timur berbatasan dengan Desa Segoro Gunung, sebelah Utara  berbatasan Kecamatan Jenawi dan sebelah selatan berbatasan Desa Girimulyo. Desa ini memiliki Misi yang ingin diwujudkan  yaitu Desa Wisata. Pemerintah setempat  memberikan pelatihan untuk membuat produk inovatif guna melengkapi kebutuhan sebagai desa wisata kepada pelaku UMKM dan Penrajin. Produk Inovatif tersebut akan dijual kepada pengunjung wisata sebagai oleh-oleh. Akan tetapi pelaku UMKM dan Penrajin memiliki kelemahan pembukuan usaha terlebih lagi dalam penetuan biaya produksi produk inovatif. Mereka hanya memperhitungkan biaya bahan baku sebagai komponen biaya produksi.   Tim pengabdian FEB Universitas melaksanakan pengabdian  untuk memberikan materi mengenai konsep perhitungan biaya produksi yang dilakukan dengan interaktif.     Kata Kunci: Desa Kemuning, Harga Pokok Poduksi, Smart Village   Abstract:  Kemuning Villages is one of the villages located in Ngargoyoso district, Karanganyar Regency, Central Java Province. Geographically, Kemuning Village is bordered to the west by Ngargoyoso Village, to the east by Segoro Gunung Village, to the north by Jenawi District and to the south by Girimulyo Village. Kemuning village has a mission to be realized, namely the Tourism Village. The local government provides training to make innovative products to complement the needs of a tourism village for MSMEs and craftsmen. These innovative products will be sold to tourist visitors as souvenirs. However, SMEs and craftsmen have weaknesses in business bookkeeping, especially in determining the cost of producing innovative products. They only take into account the cost of raw materials as a component of production costs. The Team from FEB University Pancasila carried out the service to provide material on the concept of calculating production costs which was carried out interactively.     Keywords: Desa Kemuning, Cost of Good Sold, Smart Village


1941 ◽  
Vol 1 (1) ◽  
pp. 26-41 ◽  
Author(s):  
Simon Kuznets

This paper deals with the relation between statistical analysis as applied in economic inquiry and history as written or interpreted by economic historians. Although both these branches of economic study derive from the same body of raw materials of inquiry—the recordable past and present of economic society—each has developed in comparative isolation from the other. Statistical economists have failed to utilize adequately the contributions that economic historians have made to our knowledge of the past; and historians have rarely employed either the analytical tools or the basic theoretical hypotheses of statistical research. It is the thesis of this essay that such failure to effect a close interrelation between historical approach and statistical analysis needs to be corrected in the light of the final goal of economic study.


Antiquity ◽  
2017 ◽  
Vol 91 (358) ◽  
Author(s):  
Sirvan Mohammadi Ghasrian

Despite the potential importance of southern Iran, and the Persian Gulf area in particular, for discussions on the dispersal of early hominins from Africa into Eurasia during the late Pliocene and early Pleistocene (Bar-Yosef & Belfer-Cohen 2001; Rose 2010), this area has remained almost unexplored until recently. Historically, Palaeolithic survey and excavations in Iran have mainly concentrated in western regions, especially the Zagros Mountains. As a result of recent studies, however, evidence for Palaeolithic sites in the southern regions of Iran, from Fars province to Qeshm Island, has greatly increased (Dashtizade 2009, 2010). Even with this improvement, no sites of Lower Palaeolithic date have yet been reported from the southern coastal areas on one of the proposed early hominin routes into Eurasia. As a result, it has been suggested that the few Lower Palaeolithic sites reported from other parts of Iran, especially in the west (e.g. Biglari & Shidrang 2006), were not populated from the south.


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