scholarly journals Selected Vase-Fragments from the Acropolis of Athens.—II

1894 ◽  
Vol 14 ◽  
pp. 186-197
Author(s):  
G. C. Richards
Keyword(s):  
New Method ◽  
New School ◽  
First Time ◽  
Second Period ◽  
At Home

The vase-fragments represented on Plates II.–IV. are with one exception here published for the first time and all belong to red-figured works. For the permission to publish them I am deeply indebted to M. Kavvadias, and I wish also to acknowledge help kindly given me by Dr. Wolters and Mr. Cecil Smith. Three of the works are in the early severe style, one shows the developed severe work and two belong to the advanced fine period. They are distributed on the plates merely with regard to convenience of publication. Nothing is more noticeable to any one glancing over the mass of vase-fragments from the Acropolis than the fact that while the preponderance of black-figured over red-figured works is very great (Dr. Graef puts the proportion at more than three to one), the vast majority of the former are poor in design and carelessly executed but the latter are nearly all careful and good. This seems to show—for the proportion can hardly be due to accident—that the older style continued in favour, probably because it was cheap, long after the introduction of a new method, and that the new school only produced works at the highest level of their ability, and by so doing ultimately commanded the market both at home and abroad. It is not till the second period of red-figured work that careless and hasty productions are turned out. Inferior artists seem to have contented themselves with imitations of successful masters: thus for example one seems to note imitations of Duris in museums.

Application of an Improved Colored Petri Net Modeling Method in Certain Missile Training System

2015 ◽  
Vol 742 ◽  
pp. 330-334
Author(s):  
Chun Jian Wang ◽  
Wei Yue ◽  
Hai Yan Ji
Keyword(s):  
Complex System ◽  
Petri Net ◽  
Time Use ◽  
Training System ◽  
New Method ◽  
Mathematics Model ◽  
Research Approach ◽  
Complex Environments ◽  
Training Simulator ◽  
First Time

In allusion to the need of analyzing complex system, we have proposed a method named multi-grade color Petri net. We for the first time use this new method to analyze a missile training simulator system. This model can accurately reflect the complex environments of the system and avoid the difficulty occurring often in developing accurate mathematics model by using classical research approach.

De windmolen

2020 ◽  
Vol 5 (1) ◽  
pp. 17-32
Author(s):  
JOS BAZELMANS
Keyword(s):  
The Netherlands ◽  
19Th Century ◽  
Turn Of The Century ◽  
The 19Th Century ◽  
First Time ◽  
At Home

The windmill. The origins of a Dutch icon The windmill is an icon of the Netherlands. But when did this instrument acquire this symbolic role at home and abroad? After all, mills are also common outside of the Netherlands. In this essay, it is argued that during the second half of the 19th century, foreigners systematically identified the Netherlands and the windmill for the first time. More than in other countries, there was a varied use of mills in the Netherlands, large and robust mills and clusters of industrial mills. Within the Netherlands itself, development towards an iconic position is only visible around the turn of the century when the mill turned out to be a plus in tourist recruitment abroad and when mills were slowly disappearing from the landscape.

Attitudes and Choice of Contraceptive

1979 ◽  
Vol 44 (3_suppl) ◽  
pp. 1243-1246 ◽  
Author(s):  
A. E. Reading ◽  
C. Harris ◽  
J. R. Newton
Keyword(s):  
Comparison Group ◽  
Termination Of Pregnancy ◽  
New Method ◽  
Contraceptive Methods ◽  
High Concordance ◽  
First Time

Attitudes towards contraceptive methods were sampled among 117 women, in their mid-20's, selecting a new method (Pill, IUD, Injectable) and a comparison group of women undergoing termination of pregnancy for the first time. High concordance was found, suggesting women were applying essentially the same standards in making their selection.

scholarly journals MOF Decomposition and Introduction of Repairable Defects Using a Photodegradable Strut

2018 ◽  
Author(s):  
Jingjing Yan ◽  
John MacDonald ◽  
Shawn Burdette
Keyword(s):  
Drug Delivery ◽  
Porous Materials ◽  
New Method ◽  
Innovative Approach ◽  
Partial Decomposition ◽  
Multiple Defects ◽  
Potential Applications ◽  
Defect Repair ◽  
First Time ◽  
Interesting Area

Utilizing a photolabile ligand as MOF strut can make a framework undergo full or partial decomposition upon irradiation. For the first time, a nitrophenylacetate derivative has been incorporated into MOF as a backbone linker via PLSE method. The photo-induced decarboxylation of the NPDAC-MOF represents a novel way of degrading a MOF, which provides an innovative approach to formulating photoresponsive porous materials with potential applications in molecular release and drug delivery. When photoactive linker is mixed with non-photolabile linker via partial PLSE, the MOF structure can be retained after irradiation, but with the introduction of multiple defects, offering a new method to create vacancies in MOFs. Defect repair can be achieved by treatment with replacement ligands, the scope of which is an interesting area for developing customizable MOF contents.<br>

scholarly journals Evaluation of a New Method to Track Changes in Vision at Home for Children Undergoing Amblyopia Treatment

2021 ◽  
Vol 17 (1) ◽  
pp. 70-78
Author(s):  
Anna O’Connor ◽  
Martha Waters ◽  
Laura England ◽  
Ashli Milling ◽  
Hazel Kay
Keyword(s):  
New Method ◽  
At Home

scholarly journals New Method for Nucleophilic Substitution on Hexachlorocyclotriphosphazene by Allylamine Using an Algerian Proton Exchanged Montmorillonite Clay (Maghnite-H+) as a Green Solid Catalyst

2016 ◽  
Vol 11 (2) ◽  
pp. 151 ◽  
Author(s):  
Lahouaria Medjdoub ◽  
Belbachir Mohammed
Keyword(s):  
Nucleophilic Substitution ◽  
Room Temperature ◽  
Montmorillonite Clay ◽  
New Method ◽  
Solid Catalyst ◽  
H Nmr ◽  
Flight Mass Spectrometry ◽  
Crystalline Product ◽  
First Time ◽  
C Nmr

<p>Nucleophilic substitution on hexachlorocyclotriphosphazene (HCCTP) with allylamine in order to give hexa(allylamino)cyclotriphosphazene (HACTP)  is performed for the first time under mild conditions by using diethylether as solvent to replace benzene which is very toxic. The reaction time is reduced to half and also performed at room temperature but especially in the presence of an eco-catalyst called Maghnite-H<sup>+</sup>. This catalyst has a significant role in the industrial scale. In fact, the use of Maghnite is preferred for its many advantages: a very low purchase price compared to other catalysts, the easy removal of the reaction mixture. Then, Maghnite-H<sup>+</sup> is became an excellent catalyst for many chemical reactions. The structure of HACTP synthesized in the presence of Maghnite-H<sup>+</sup> to 5% by weight is confirmed by <sup>1</sup>H-NMR, <sup>13</sup>C-NMR, <sup>31</sup>P-NMR (Nuclear magnetic resonance) and FTIR (Fourier Transform Infrared spectroscopy). MALDI-TOF (Matrix-Assisted Laser Desorption/Ionisation-time-of-flight mass spectrometry) is used to establish the molecular weight of HACTP which is 471 g/mol. DSC (Differential Scanning Calorimetery) and TGA (Thermogravimetric Analysis) show that HACTP is a crystalline product with a melting point of 88 °C. It is reactive after melting but is degraded from 230 °C. Copyright © 2016 BCREC GROUP. All rights reserved</p><p><em>Received: 28<sup>th</sup> September 2015; Revised: 5<sup>th</sup> December 2015; Accepted: 4<sup>th</sup> January 2016</em></p><p><strong>How to Cite</strong>: Medjdoub, L., Mohammed, B. (2016). New Method for Nucleophilic Substitution on Hexachlorocyclotriphosphazene by Allylamine Using an Algerian Proton Exchanged Montmorillonite Clay (Maghnite-H+) as a Green Solid Catalyst. <em>Bulletin of Chemical Reaction Engineering &amp; Catalysis</em>, 11 (2): 151-160 (doi:10.9767/bcrec.11.2.541.151-160)</p><p><strong>Permalink/DOI:</strong> http://dx.doi.org/10.9767/bcrec.11.2.541.151-160</p>

scholarly journals A new method to derive middle atmospheric temperature profiles using a combination of Rayleigh lidar and O<sub>2</sub> airglow temperatures measurements

2012 ◽  
Vol 30 (1) ◽  
pp. 27-32 ◽  
Author(s):  
A. Taori ◽  
A. Jayaraman ◽  
K. Raghunath ◽  
V. Kamalakar
Keyword(s):  
Temperature Profile ◽  
Atmospheric Temperature ◽  
New Method ◽  
Temperature Profiles ◽  
Vertical Temperature ◽  
Lidar System ◽  
Mesospheric Temperature ◽  
Simultaneous Measurements ◽  
Rayleigh Lidar ◽  
First Time

Abstract. The vertical temperature profiles in a typical Rayleigh lidar system depends on the backscatter photon counts and the CIRA-86 model inputs. For the first time, we show that, by making simultaneous measurements of Rayleigh lidar and upper mesospheric O2 temperatures, the lidar capability can be enhanced to obtain mesospheric temperature profile up to about 95 km altitudes. The obtained results are compared with instantaneous space-borne SABER measurements for a validation.

scholarly journals Longitudinal Experiences of Children Remaining at Home after a First-Time Investigation for Suspected Maltreatment

2012 ◽  
Vol 161 (2) ◽  
pp. 340-347 ◽  
Author(s):  
Kristine A. Campbell ◽  
Andrea M. Thomas ◽  
Lawrence J. Cook ◽  
Heather T. Keenan
Keyword(s):  
First Time ◽  
At Home

Social isolation, time spent at home, financial stress and domestic violence during the COVID-19 pandemic

2020 ◽  
Author(s):  
Anthony Morgan ◽  
Hayley Boxall
Keyword(s):  
Social Isolation ◽  
Online Survey ◽  
Strong Predictor ◽  
Financial Stress ◽  
Economic Stress ◽  
Increased Risk ◽  
Containment Measures ◽  
History Of ◽  
First Time ◽  
At Home

In this study we use data from a large online survey of Australian women to examine whether the increased time spent at home, social isolation and financial stress resulting from COVID-19 containment measures were associated with a higher likelihood of physical and sexual violence among women in current cohabiting relationships with and without a history of violence. An increase in the amount of time spent at home with a partner did not in itself increase the likelihood of violence among either group. However, the probability of repeat or first-time violence was between 1.3 and 1.4 times higher for women who had less frequent contact with family and friends outside of the household during the pandemic. While financial stress prior to the pandemic was a strong predictor of violence for both groups, the probability of first-time violence was 1.8 times higher among women who experienced an increase in financial stress. We conclude that the pandemic was associated with an increased risk of violence against women in current cohabiting relationships, most likely from a combination of economic stress and social isolation.

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