78 research outputs found

    An English Grammar and a bilingual Glossary acting as complementary Tools for a CLIL-based Course

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    This paper describes how two complementary tools, an English grammar and a bilingual (Italian- English) glossary, can be expanded by University students attending a CLIL (Content and Language Integrated Learning) course in which a funerary archaeology lecturer, an English language instructor and an archaeologist work together, integrating content and language. This work is part of a wider project carried out at the Division of Palaeopathology, History of Medicine and Bioethics, and approved by the University of Pisa. Starting from a sample of Italian and English monographic texts and other publications in printed or electronic form dealing with the subject of funerary archaeology and other related research areas (anthropology, field archaeology, anatomy and chemistry, which can provide new insights into past civilizations, cultures and practices so far undiscovered), we have extracted separate, preliminary lists of specialized terms. The students working alone, in pairs or in groups, are asked to expand these lists, tracking down additional words with their definitions and example sentences drawn from other authoritative sources. The information with specification of the authors and detailed bibliographical references should be written in independent appropriately labelled files, and sent to the computer analyst responsible for the computer software editing. The reading of various definitions at different levels of depth will enable the user to understand better, have a clearer and more exhaustive picture of a particular word, concept, or phenomenon. The glossary, addressed to the students who are at the same time creators and users of the product, can also be of interest to professors, scholars or translators who need to dispose of the specialised terms of funerary archaeology in a language other than their own. Many of the definitions and other types of useful information can be exploited to illustrate the different grammar points and structures of an easy-to-use on-line English intermediate-level grammar book, to study the grammar not in isolation but in meaningful contexts and real-life situations, to encourage the learners to become active explorers of the language. This ongoing grammar can be a valuable resource for students with minimum linguistic knowledge and competence, but also be useful to those wishing to improve the English language, enhancing their learning proficiency. Implementation of the two complementary products - grammar and glossary - will proceed together, contributing to the learning of funerary archaeology on the part of the students, both learners and creators of the two tools. As we know, the possibilities offered by the computer in terms of space, links, cross-references, etc. make it possible to organize and customize the material, meeting as much as possible the users\u27 needs. The technological tools increasingly available in the educational context support both the subject and language teacher in making the learning process easier and more engaging, helping clarify certain concepts in a non-traditional way in order to accomplish various instructional objectives

    Step-by-step Organization of a University CLIL Course

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    This paper reports on the organization of CLIL (Content and Language Integrated Learning) University courses in funerary archaeology held at the Division of Palaeopathology of Pisa University. We outline the different steps involved in the practical implementation of the proposed approach, which include choice of topic, linguistic content, tasks and strategies, and we describe the ways in which CLIL can be used both in the classroom and in archaeological fieldwork excavations for teaching of the discipline and practical experience with leading scholars in the field. Each two-hour lesson slot is divided into four parts, devoted to both the receptive (reading, listening) and productive (writing, speaking) skills, which constantly expose the students to language, helping them understand the contents of the discipline. It is necessary to take into account the additional difficulties students attending the courses might have, which are due to their having to learn basic and academic language skills and new subject concepts at the same time. All the material relevant to the course is simplified and adapted to the needs and language of the students, who are supported by authentic materials in the form of text-books, articles, tutorials, illustrations, audio and video recordings, and by a number of activities ranging from gap-filling exercises, matching words with their definitions, jumbled sentences, sentence formation, preparation of posters, powerpoint demonstrations. The trainees are also involved in increasing an ongoing bilingual English-Italian glossary and contextualized English grammar. Working individually, then in pairs and in small groups, they are responsible for the different areas of the discipline. Funerary archaeology is the study of death, ancient burials and human skeletal remains, body disposal, etc., and includes skeleton anthropology, bone diagenesis, taphonomic anthropology, as well as other features comprising excavation phases, techniques and tools employed, field archaeology

    Combining different Technologies in a Funerary Archaeology content and language integrated Learning (CLIL) Course

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    The aim of this paper is to describe a project in which Italian undergraduate students at the Palaeopathology Division of Pisa University will attend a two-year Content and Language Integrated Learning (CLIL) course combining the study of funerary archaeology with English as vehicular language. At the presence of a subject and language teacher working together, the trainees will use different types of technology including devices such as electronic blackboards and Word applications with user-friendly interfaces (Excel, Powerpoint, etc.), audio tapes, DVDs, videos taken from important satellite television programmes (BBC, Discovery Channel, National Geographic, etc.). The activities will range from reading parts of funerary archaeology texts scanned and put onto the computer, to gap-filling exercises by listening to a recording, matching words with their definitions, jumbled sentences, etc. A number of resources will be prepared by the learners, for example a bilingual glossary of archaeology terms with definitions extracted from authentic texts, as well as an English grammar with examples-in-context of the basic grammar items, to be exploited by the students of future courses. While performing the different tasks, the learners will be involved in the learning of funerary archaeology content, in improving their language skills, and in understanding how to use different technological tools. In the summer period at the end of the first year, more sophisticated technology will support the students during the explorations at an archeological site in the small village of Benabbio in northern Tuscany. In particular, the excavations of 14th century bodies on the one hand, and of corpses of people who were victims of the 1855 cholera epidemic on the other, will be carried out using surveying tools that can contribute to the understanding of the underground features. Such tools include geo-radars which help the archaeologists collect information about the location of past human cultures in a particular area; G.I.S., the science that allows to view, interpret, and visualize data concerning maps, globes, reports, and charts; aerial photography, by which it is possible to detect traces of buried structures that are not visible at ground level. Finally, some of the bodies will be submitted to computerized axial tomography (C.A.T.) for a more thorough investigation that can reveal and clarify certain types of information that would have been impossible to obtain in the past. Understanding of the different technologies used for geographic inquiry and treatment of the bodies will also be part of the content course in funerary archaeology held by the subject teacher. The students will be able to experiment the tools, exchanging ideas, sharing experiences, and speaking about their work with British peers from the United Kingdom, who are spending the summer period at Benabbio on exchange courses, and graduating in funerary archaeology in their country. The final exam will consist of a dissertation written in English in which the students will describe particular tasks in which they have been involved, as well as an oral Powerpoint presentation illustrating a particular phase of the excavation activities. Technology-supported tools have become increasingly available in educational contexts, allowing trainees to learn from practical experiences, to be engaged in authentic tasks and build up their self confidence for communication in real life situations

    MULTIDISCIPLINARY INVESTIGATION ON EARLY-MID HOLOCENE WILD CEREALS FOUND AT TAKARKORI (CENTRAL SAHARA)

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    Plant macroremains from rock shelters of central Sahara give information about the environmental conditions during the Holocene, and the adaptive strategies of human groups living in the area. Takarkori was excavated by the Italian-Libyan Archaeological Mission in the Acacus and Messak (directed by S. di Lernia, Sapienza University of Rome) and its chronology ranges from ca. 10,200 to ca. 4,600 cal yr BP (Cremaschi et al. 2014)

    Multidisciplinary analysis of wild cereals from the Holocene archaeological site of Takarkori (central Sahara)

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    Pollen and plant macroremains from central Sahara archaeological sites give information about the environmental conditions during the Holocene and the adaptive strategies of human groups living in the area . Wild cereals have been exploited for long time and are the prevalent taxa among those selected and transported to shelters and caves. The extraordinary state of preservation of the organic materials found at Takarkori allowed the morphological and molecular analyses of seeds/fruits belonging to the Poaceae family

    The representativeness of Olea pollen from olive groves and the Late Holocene landscape reconstruction in central Mediterranean

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    Modern pollen spectra are an invaluable reference tool for paleoenvironmental and cultural landscape reconstructions, but the importance of knowing the pollen rain released from orchards remains underexplored. In particular, the role of cultivated trees is in past and current agrarian landscapes has not been fully investigated. Here, we present a pollen analysis of 70 surface soil samples taken from 12 olive groves in Basilicata and Tuscany, two regions of Italy that exemplify this cultivation in the Mediterranean basin. This study was carried out to assess the representativeness of Olea pollen in modern cultivations. Although many variables can influence the amount of pollen observed in soils, it was clear that most of the pollen was deposited below the trees in the olive groves. A rapid decline in the olive pollen percentages (c. 85% on average) was found when comparing samples taken from IN vs. OUT of each grove. The mean percentages of Olea pollen obtained from the archaeological sites close to the studied orchards suggest that olive groves were established far from the Roman farmhouses of Tuscany. Further south, in the core of the Mediterranean basin, the cultivation of Olea trees was likely situated approximately 500\u20131000 m from the rural sites in Basilicata, and dated from the Hellenistic to the Medieval period

    Multidisciplinary analysis of Early \u2013 Mid Holocene wild cereal remains from central Sahara (SW Libya).

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    .Pollen and plant macroremains from rock shelters of central Sahara give information about environmental conditions during the Holocene, and adaptive strategies of human groups living in the area. Wild cereals were long-time exploited and are prevalent among plants selected and transported to these sites. Spikelets and grains of Panicoideae are the most abundant plant remains found at Takarkori, a rock shelter in the Tadrart Acacus Mts. (SW Libya). They have been studied by means of morphological and molecular (ancient DNA) analyses. The excavation by the Italian-Libyan Archaeological Mission in the Acacus and Messak (Sapienza University of Rome and Libyan Department of Archaeology) exposed a surface of 140 m2. The deposit includes stone structures, fireplaces, plant accumulations and a burial area. The site (dated 10,200-4,600 cal yr BP) was occupied throughout Early and Middle Holocene, a pivotal period for human development as include the transition from hunter-gatherer subsistence to food production. Peculiarity of the sequences is the surprising preservation of organic matter. Systematic morphobiometrical analysis was carried out on 1,450 spikelets of Panicum, Echinochloa and Sorghum selected on the basis of their different cultural contexts. The records showed uniform size in each genus. aDNA was extracted testing different protocols and then was studied by the DNA barcoding technique using four chloroplast markers. Bioinformatic analysis of the results allowed to inspect the phylogenetic relationships between the archaeobotanical records and the modern species of African wild cereals

    New Insights on Plant Cell Elongation: A Role for Acetylcholine

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    We investigated the effect of auxin and acetylcholine on the expression of the tomato expansin gene LeEXPA2, a specific expansin gene expressed in elongating tomato hypocotyl segments. Since auxin interferes with clathrin-mediated endocytosis, in order to regulate cellular and developmental responses we produced protoplasts from tomato elongating hypocotyls and followed the endocytotic marker, FM4-64, internalization in response to treatments. Tomato protoplasts were observed during auxin and acetylcholine treatments after transient expression of chimerical markers of volume-control related compartments such as vacuoles. Here we describe the contribution of auxin and acetylcholine to LeEXPA2 expression regulation and we support the hypothesis that a possible subcellular target of acetylcholine signal is the vesicular transport, shedding some light on the characterization of this small molecule as local mediator in the plant physiological response

    Wild cereals from Holocene central Sahara archaeological sites: aDNA and archaeobotany from the Takarkori rockshelter

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    Both pollen and macroremains recovered from archaeological sites point to a long-time exploitation of wild cereals and to the prevalence of these plants among those selected and transported to shelters and caves of central Sahara (southwestern Libya)(1). Spikelets, florets and grains of Panicoideae (Brachiaria, Cenchrus, Echinochloa, Panicum, Setaria, Urochloa, Sorghum) are the most abundant plant remains in these sites. The archaeological excavation of the Takarkori rockshelter by the Italian-Libyan Archaeological Mission in the Acacus and Messak (Central Sahara), Sapienza University of Rome (directed by S. di Lernia), exposed a surface of c. 120 m2 in extent. The 1.6 m thick deposit includes stone structures, fireplaces, plant accumulations, dung layers and a burial area. Layers were deposited during hunter-gatherer and later pastoralist occupational phases. Chronology ranged from c. 9000 to 4200 BP, and was based on stratigraphy, radiocarbon dates, and archaeological materials (2). Systematic morphological analysis was carried out on 200 spikelets/florets selected as representative of different chronological contexts. The records of Panicum, Echinochloa and Sorghum showed homogeneous typology and fairly uniform size in each genus. aDNA extraction confirming the morphological identifications of the three taxa was obtained by Olmi et al. (3). aDNA was successfully performed using several methods (4, 5) and then assayed using PCR with a primer set for the rbcL gene. New aDNA extraction was obtained from Panicum spikelets and the analysis of matK, trnH-psbA and trnL barcode regions may help to identify the records at species level

    Levels of vibration transmitted to the operator of the tractor equipped with front axle suspension

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    In recent years the comfort and the preservation of the health of the operators became central issues in the evolution of agricultural machinery and led to the introduction of devices aimed at improving working conditions. Thereby, for instance, the presence of air conditioner, soundproof cab and driver seat suspension became normal on agricultural tractors. The vibrations are one of the most complex issues to deal with, being determined by the characteristics and interaction of elements such as tyres, axles, mainframe, cab and seat suspension. In this respect, manufacturers are trying to improve their products, even integrating these elements with new devices such as the suspension on the front axle of the tractor, aimed at reducing the level of vibrations during the transfers at high speed. One of these underwent tests at CRA-ING. Since its purpose is to reduce the level of vibration transmitted to the driver, their measurements in different points of the tractor and in different operating conditions, were compared in order to evaluate the effectiveness of the device, expressed as time of exposure. The suspension system of the front axle is designed to absorb the oscillations (especially pitching) determined by irregularities in the road surface, allowing an increased control of the vehicle at high speed, as demonstrated by the test results and confirmed by the driving impressions outlined by the operator. The action of the device under these conditions results in an increase of the exposure time, important fact because of the relevance of the road transfer operations of tractors with mounted implements or trailers to tow and of the tendency to increase the speed limit for the road tractors (in Germany were brought to 50 km h–1 for several years). The action just described is less evident with increasing irregularity of the road surface and with the decrease of the travel speed. Nevertheless, in such conditions, the device appears to positively work along the other directions, in particular in the Z-axis, improving the action of the suspension of the driver seat
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