scholarly journals Os artefactos líticos talhados do litoral de Vila Nova de Gaia: caracterização genérica, contextualização geoarqueológica, problemas e perspectivas

2016 ◽  
pp. 99-116 ◽  
Author(s):  
Sérgio Monteiro-Rodrigues ◽  
Alberto Gomes ◽  
João Pedro Cunha-Ribeiro
Keyword(s):  
Last Glacial Period ◽  
Level Ii ◽  
De Se ◽  
Lithic Industry ◽  
Minimum Age ◽  
Level I ◽  
High Degree ◽  
The City ◽  
Very High ◽  
The Last Glacial

O litoral de Vila Nova de Gaia, a sul da cidade do Porto, constitui um trecho geoarqueológico ímpar para o estudo da ocupação quaternária da fachada ocidental da Ibéria. Neste trabalho apresentam-se algumas características tecno-tipológicas das indústrias líticas do litoral de Vila Nova de Gaia e avançam-se hipóteses sobre os respetivos contextos cronoestratigráficos, litoestratigrágicos e geoarqueológicos. De acordo com observações mais ou menos pontuais realizadas durante as últimas três décadas sugere-se que:a) A indústria lítica mais antiga parece associar-se ao nível marinho I (20-30 m a.n.m.a.m.), podendo ter sido posteriormente remobilizada na sequência de processos coluvionares. A presença de bifaces e de machados de mão entre os artefactos identificados remete-a para o Acheulense;b) A ocorrência de bifaces muito boleados em depósitos coluvionares que recobrem o nível marinho II (10-20 m a.n.m.a.m.), sugere que o seu contexto primário terá sido o referido depósito marinho;c) na base do depósito do nível marinho III da Praia da Aguda ocorrem artefactos líticos enquadráveis no Acheulense (presença de bifaces e de machados de mão);d) nas coluviões sobre os níveis marinhos I e II existem artefactos muito eolizados – aparentemente posteriores às formações marinhas e anteriores à génese das coluviões – e artefactos sem qualquer alteração física – possivelmente coevos dos processos de coluvionamento. Aspetos técnicos e tipológicos observados nestes dois conjuntos artefactuais permitem avançar a hipótese de se relacionarem, respetivamente, com o último período glaciar (idade mínima) e com o Holocénico. The carved lithic artefacts from the littoral of Vila Nova de Gaia: generic characterization, geoarchaeological contextualization, problems and perspectives - The coast of Vila Nova de Gaia, south of the city of Porto, constitutes a unique geoarchaeological stretch for the study of the quaternary occupation of the western facade of Iberia. This work presents some techno-typological characteristics of the lithic industries from Vila Nova de Gaia coastline and hypotheses concerning their chronostratigraphic context are presented. According to general observations carried out during the last three decades it is suggested that:a) The earliest lithic industry seems to be associated with marine level I (20-30 a.s.l.); however, it may have been subsequently remobilized by colluvial processes. The presence of handaxes and cleavers among the artefacts connect this assemblage with the Acheulean;b) The presence of rolled handaxes in colluvial deposits overlying marine level II (10-20 m a.s.l.) suggests that their primary context may have been the mentioned marine level;c) At the bottom of the marine level III deposit from Praia da Aguda (< 10 m a.s.l) there are lithics of Acheulean age (presence of handaxes and cleavers);d) In the colluvial deposits overlying marine levels I and II there are lithic artefacts with a very high degree of aeolisation – apparently younger than the marine formations and older than the colluvial processes – and artefacts with no patina – possibly synchronous of the colluvia. Technical and typological features observed in these two sets suggest that the first one may date from the last glacial period (minimum age) and the second one from the Holocene.

scholarly journals THE UPPER PALEOLITHIC SITE KORMAN’ 9

2019 ◽  
Vol 32 (3) ◽  
pp. 111-125 ◽  
Author(s):  
L. V. Kulakovska ◽  
V. I. Usyk ◽  
P. Haesarts ◽  
S. Pirson ◽  
O. M. Kononenko ◽  
...  
Keyword(s):  
Raw Materials ◽  
Upper Paleolithic ◽  
Faunal Remains ◽  
Paleolithic Site ◽  
Main Research ◽  
Level Ii ◽  
Lithic Industry ◽  
Level I ◽  
Materials Used ◽  
The 1960S

Near the village of Korman’ (Sokyryany district, Chernivtsi region, Ukraine) several Palaeolithic sites are known. In the 1960s and 70s, O. P. Chernysh conducted archaeological studies of the site Korman’ IV. In 2012 the new Palaeolithic site named as Korman’ 9 was discovered by the Dniester Palaeolithic expedition of the IA NASU. A preliminary fieldwork season was conducted in 2013. The main research focused on the chronostratigraphic and palaeoenvironmental study of the site. In the approximately 4 metres thick Quaternary deposits (dating to the late Pleniglacial), three Upper Paleolithic levels were observed. The main raw materials used by late Pelistocene humans were local Turonian and Cenomanian flint. The faunal remains in all levels are dominated by reindeer. In level I two fireplaces were recorded. One about 1 m in diameter has a layer of burnt loess at its bottom with a thickness of about 10 cm. The collection of 932 lithic artifacts comprises cores, tools, blanks, chips, and chunks. The primary knapping is characterized by parallel uni- and bi-directional blade, bladelet and microblade production. The tools (n = 92) are dominated by backed bladelets / microblades (n = 69). There is a single endscraper, and the few burins are represented by dihedral burins (n = 2), one bruin on a a break and one on a truncation. Other tools represented are bilaterally retouched points, borer, combination tool and retouched pieces. Additionally, in level I, the following personal ornaments were found: one pendant of amber, one pendant of fox tooth, one pendant of a perforated shell and three shell beads. Level II. A collection of 20 flint artifacts is presented exclusively by the products of primary flaking. In level III, a small number of flint artifacts (n = 67) were recovered, including two cores, one endscraper, and three retouched pieces. The lithic industry of level I, according to the technical-typological characteristic and chronostratigraphic position, can be attributed to the Epi-Gravettian technocomplex. It is possible, that the collection of level II also belongs to the same technocomplex, but due to the small number of finds, the authors refrain from concrete conclusions. Collection of level III on the base of morphological features can be attributed to the Gravettian technocomplex and is currently undated.

scholarly journals Congestion Evaluation of Pedestrians in Metro Stations Based on Normal-Cloud Theory

2019 ◽  
Vol 9 (17) ◽  
pp. 3624 ◽  
Author(s):  
Jibiao Zhou ◽  
Yao Wu ◽  
Xinhua Mao ◽  
Shun Guo ◽  
Minjie Zhang
Keyword(s):  
Video Data ◽  
Metro Station ◽  
Crowd Management ◽  
Level Ii ◽  
Level I ◽  
Four Levels ◽  
Cloud Theory ◽  
The City ◽  
Pedestrian Crowd

This study aims at evaluating the congestion level of pedestrians in metro stations. Twelve hours (4 h × three facilities) of video data were collected in the channel, stairway, and platform in a metro station in the city of Ningbo, China. The indicator of GPC (grade of pedestrian crowd) was proposed to quantify the congestion level of pedestrians. Four levels of congestion (level I, level II, level III, and level IV) were determined based on the GPC. A normal-cloud (NC) model was proposed and calibrated for the evaluation of three facilities including channel, stairway, and platform. The evaluation results showed that the GPC of L1-L2 and L2-L1 in channel are level II and level I, respectively. The GPC of upward and downward of stairway are level III and level I. The GPC of platform is level IV. Crowd management countermeasures were proposed for the management of pedestrians in metro station.

Research on Simulation Technology for Supervisory Control Software in NPP DCS

2017 ◽  
Author(s):  
Hanjun Gao ◽  
Ming Qu ◽  
CaiKe Zhang ◽  
Kui Xu ◽  
PeiBang Liu ◽  
...  
Keyword(s):  
Supervisory Control ◽  
Control Level ◽  
Configuration Software ◽  
High Fidelity ◽  
Operator Training ◽  
Level Ii ◽  
Crucial Component ◽  
Level I ◽  
License Examination ◽  
High Degree

The DCS simulator is a crucial component of FSS which is used for operator training and license examination. It is always divided into process control level (short for Level I) and supervisory control level (short for Level II). Among these, the Level II directly faces to operators and engineers. Therefore it requires a high degree of fidelity, reliability and good user experience. Be aimed at the requirement of the Level II, a high-fidelity simulation system based on MVC mode is constructed. And multiple technologies of self-dependent innovation and custom-built software are designed and developed, such as the data middleware, the configuration software, and the SimBase et al. The successful application in the HAINAN’s NPP proves that the DCS Level II’s simulator has a high fidelity, reliability, and accumulates valuable experiences for the development of our own DCS Level II as well.

scholarly journals The Challenges that English Teachers Face in the Employment of the Evaluation Matrix in Classes for Students with Learning Difficulties

2021 ◽  
Vol 2 (5) ◽  
pp. 30-38
Author(s):  
Mohammad Abedrabbu Alkhawaldeh ◽  
Mohamad Ahmad Saleem Khasawneh
Keyword(s):  
Public Schools ◽  
Statistical Significance ◽  
Learning Difficulties ◽  
English Teachers ◽  
Education Level ◽  
Academic Qualification ◽  
High Degree ◽  
Evaluation Matrix ◽  
The City ◽  
Very High

The current study aimed at identifying the challenges that English teachers face when they employ the evaluation Matrix in classes for students with learning difficulties. The study followed the descriptive-analytical method. A questionnaire was designed to meet the study objectives.  the study sample consisted of 136 English teachers of the primary education level in public schools in the city of Irbid.  The findings revealed that the challenges that English teachers face in employing the evaluation Matrix in classes for students with learning difficulties came with a very high degree, they also revealed the absence of differences with statistical significance between the responses of the sample attributable to the variables of gender and experience years.  Furthermore, the findings showed the presence of statistically significant differences between the responses of the sample attributable to the variable of academic qualification.

scholarly journals PENINGKATAN MOTIVASI DAN KETERAMPILAN HITUNG PECAHAN DESIMAL MELALUI MEDIA MANIPULATIF PADA PEMBELAJARAN TEMATIK-INTEGRATIF SD

2016 ◽  
Vol 3 (1) ◽  
pp. 122
Author(s):  
Yuni Ristanti
Keyword(s):  
Skill Learning ◽  
Learning Motivation ◽  
Average Score ◽  
Skill Test ◽  
Level Ii ◽  
Arithmetic Skill ◽  
Good Classification ◽  
Scale Test ◽  
Level I ◽  
Very High

Penelitian ini bertujuan untuk: (1) mengetahui apakah penampilan guru dalam mengajar berada pada klasifikasi baik untuk mendukung peningkatan keterampilan hitung dan motivasi belajar, (2) meningkatkan motivasi belajar siswa, dan (3) meningkatkan keterampilan hitung pecahan desimal siswa kelas 4 SDN 15 Ulu Gadut (Padang) melalui media manipulatif pada pembelajaran tematik integratif dengan menggunakan desain penelitian tindakan kelas. Teknik pengumpulan data menggunakan: observasi, tes tskala motivasi, catatan lapangan, dan tes kemampuan hitung. Analisis data dilakukan secara kualitatif dan kuantitatif. Hasil penelitian menunjukan: (1) penampilan guru dalam mengajar memperoleh skor 160,5; 174; dan 179,17 dengan klasifikasi baik pada siklus 1, 2, dan 3. 2) motivasi peserta didik meningkat dari siklus 1, 2, dan 3 berturut-turut senilai 62,04, 65,56, dan 68,16 sedangkan hasil tes skala motivasi meningkat dengan skor pada siklus 1, 2, dan 3 senilai 79,41, 85,05, dan 87,05. (3) Hasil tes keterampilan hitung siklus 3 memperoleh skor 90,81 pada level I, 93,51 pada level II, 75,14 pada level III, 75,68 pada level IV, dan 76,76 pada level V.Kata Kunci: keterampilan hitung pecahan desimal, motivasi belajar, media manipulatif, tematik-integratif. IMPROVING MOTIVATION AND THE DECIMAL COMPUTATION SKILL BY USING MANIPULATIVES IN THEMATIC-INTEGRATED LEARNING IN ELEMENTARY SCHOOL AbstractThis study aims to: (1) determine whether teacher’s performance in teaching using manipulatives media are in good classification to support arithmetic skills and students’ learning motivation (2) increase the learning motivation,  and (3) increase the decimal computation skill of class IV B students of SDN 15 Ulu Gadut, Padang by using manipulatives. The results are as follows: (1) the teacher’s teaching performance is in a good category with a total score of cycles I, II, and III, 160.5, 174, and 179.17 respectively. (2) the students’ learning motivation has increased by 62.04 in cycle I, 65.56 in cycle II, and 68.16 in cycle III and then, the result of students’ motivation scale test is in a very high category, with an average increase of 79.41, 85.05, and 87.05 in cycles I, II, III. (3) the results of arithmetic skill test at the end of the third cycle are at an average score of 90.81 at level I, 93.51 at level II, 75.14 at level III, 75.68 at level IV, and 76.76 at level V.Keywords: decimal computation skill, learning motivation, manipulatives, thematic-integrated.

scholarly journals A change in seasonality in Greenland during a Dansgaard–Oeschger warming

2008 ◽  
Vol 48 ◽  
pp. 19-24 ◽  
Author(s):  
Elizabeth R. Thomas ◽  
Robert Mulvaney ◽  
Eric W. Wolff
Keyword(s):  
Seasonal Cycle ◽  
Ice Core ◽  
Chemical Deposition ◽  
Last Glacial Period ◽  
Glacial Ice ◽  
The North ◽  
Annual Layer ◽  
First Time ◽  
Very High ◽  
The Last Glacial

AbstractA new sub-seasonal chemical record is presented from the North Greenland Icecore Project (NorthGRIP) ice core during the onset of one of the longest and strongest interstadials of the last glacial period, Dansgaard–Oeschger event 8 (approximately 38 000 years ago). This is the first time that a record of such resolution has been achieved over several metres of deep glacial ice and provides a unique opportunity for using additional parameters to carry out accurate dating using annual-layer counting. The very high-resolution chemical data were used to assess the phasing of various ions and determine changes in the seasonal strength of chemical deposition and the shape of the seasonal cycle. The study shows that a change in seasonality accompanied the dramatic warming transition from stadial to interstadial conditions in Greenland.

Electron Microscopy in Molecular Biology

1967 ◽  
Vol 25 ◽  
pp. 2-3
Author(s):  
Cecil E. Hall
Keyword(s):  
Electron Microscopy ◽  
Molecular Biology ◽  
Noise Level ◽  
Molecular Structures ◽  
Material Structure ◽  
The Arts ◽  
Shadow Casting ◽  
Electron Image ◽  
High Degree ◽  
Very High

The visualization of organic macromolecules such as proteins, nucleic acids, viruses and virus components has reached its high degree of effectiveness owing to refinements and reliability of instruments and to the invention of methods for enhancing the structure of these materials within the electron image. The latter techniques have been most important because what can be seen depends upon the molecular and atomic character of the object as modified which is rarely evident in the pristine material. Structure may thus be displayed by the arts of positive and negative staining, shadow casting, replication and other techniques. Enhancement of contrast, which delineates bounds of isolated macromolecules has been effected progressively over the years as illustrated in Figs. 1, 2, 3 and 4 by these methods. We now look to the future wondering what other visions are waiting to be seen. The instrument designers will need to exact from the arts of fabrication the performance that theory has prescribed as well as methods for phase and interference contrast with explorations of the potentialities of very high and very low voltages. Chemistry must play an increasingly important part in future progress by providing specific stain molecules of high visibility, substrates of vanishing “noise” level and means for preservation of molecular structures that usually exist in a solvated condition.

A Low-Noise, High-Gain Quasi-Millimeter-Wave Receiver MMIC with a Very High Degree of Integration Using 3D-MMIC Technology

2011 ◽  
Vol E94-C (10) ◽  
pp. 1548-1556 ◽  
Author(s):  
Takana KAHO ◽  
Yo YAMAGUCHI ◽  
Kazuhiro UEHARA ◽  
Kiyomichi ARAKI
Keyword(s):  
Millimeter Wave ◽  
High Gain ◽  
Low Noise ◽  
High Degree ◽  
Very High ◽  
Millimeter Wave Receiver

Se perdre afin de se retrouver : l'importance du passage entre l’absence et la présence dans Œdipe sur la route de Henry Bauchau

2012 ◽  
pp. 116-123
Author(s):  
Alicja Ślusarska
Keyword(s):  
Human Nature ◽  
Meaning Of Life ◽  
The Road ◽  
De Se ◽  
The City ◽  
Oedipus At Colonus

Retracing in his novel the labyrinthine journey that leads Oedipus from the place of his abomination (Thebes) to the city of his future glory (Colonus), Henry Bauchau fills the emptiness between Sophocles’s Oedipus the King and Oedipus at Colonus. Bauchau’s hero, a powerful king, loses everything and stabs his eyes out when the cruel truth about his real identity is revealed. Blind, homeless, devoid of meaning of life, Oedipus leaves on a journey to pass away anywhere. However, his way to death turns out to be, thanks to benevolent presence of others and art’s liberating power, the road to personal elucidation. The story of Bauchau’s Oedipus, who finally recognizes himself as a truly human, is based therefore on the passage between absence and presence, between darkness and lucidity, on the union of contradictions which symbolize the complexity of human nature. This paper attempts to analyse different representations of absence in Bauchau’s novel. Afterwards, the article focuses on the ways which facilitate Oedipus’s road leading from depersonalization to rediscovery of his own identity.

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