scholarly journals AUTENTYZM DEKORACJI MALARSKICH STAREGO MIASTA W WARSZAWIE

2017 ◽  
pp. 93-103
Author(s):  
Anna Jagiellak
Keyword(s):  
Complete Removal ◽  
Essential Elements ◽  
Wall Painting ◽  
Technological Method ◽  
Traditional Technologies ◽  
Painting Techniques

The polychrome decorations of the Warsaw's Old Town have been recognised as the essential elements that contribute to the justification of its Outstanding Universal Value.This decision is a guideline that obliges to preserve the original polychromies and also determines the technological method of their conservation. In practice, preserving the authenticity of the traditional wall painting techniques puts contractors to task of conserving the relics of the original decorations and plasters from the 50s and 60s.The latter however, are not perceived as valuable assets. The degree of the destruction appear to be a sufficient justification for their complete removal. For that reason the elevations, being next renovated with the help of modern preparations lose their old-town character. The article raises the problem both of underestimation of the value of the original fabric created during the reconstruction of the Old Town as well as abandoning the traditional technologies employed originally in the monument.

Microscopic Analysis of Wall Painting Techniques: Laboratory Replicas and Romanesque Case Studies in Southern Switzerland

2018 ◽  
Vol 63 (6) ◽  
pp. 326-341 ◽  
Author(s):  
Lucia Regazzoni ◽  
Giovanni Cavallo ◽  
Danilo Biondelli ◽  
Jacopo Gilardi
Keyword(s):  
Case Studies ◽  
Microscopic Analysis ◽  
Wall Painting ◽  
Painting Techniques

Late mediaeval wall painting techniques at Farleigh Hungerford Castle and their context

1998 ◽  
Vol 43 (sup1) ◽  
pp. 59-64 ◽  
Author(s):  
Helen Howard ◽  
Tracy Manning ◽  
Sophie Stewart
Keyword(s):  
Wall Painting ◽  
Painting Techniques

scholarly journals Technology of residual stresses removal at multi-cycle racers running-in

2017 ◽  
Vol 2 (1) ◽  
pp. 22-26
Author(s):  
Андрей Балаев ◽  
Andrey Balaev ◽  
Альберт Королев ◽  
Albert Korolev ◽  
Александр Яковишин ◽  
...  
Keyword(s):  
Residual Stress ◽  
Residual Stresses ◽  
Processing Time ◽  
New Technology ◽  
Complete Removal ◽  
Geometrical Parameters ◽  
Technological Method

The substantiation of the new technology of multi-cycle racer running-in is shown. A technological method for racer resi-dual stresses removal by means of multi-cycle centerless running-in is described. For the computation of running-in basic time which is necessary for the complete removal of residual stresses there is developed a simulator. A simulator takes into account geometrical and mechanical conditions of the contact of rollers and a racer, physical-mechanical and geometrical parameters of a racer. On the basis of the simulator obtained there is carried out an investigation of the dependence of residual stress upon the duration of racer multi-cycle running-in for various stressed states. It is established that for the efficient stress removal the running-in time must be optimum. If time is lesser than optimum, then there is no a complete removal of residual stresses. At processing time longer of optimum one after a complete removal of residual stresses the accumulation of new residual stresses takes place.

scholarly journals Consolidation tests in archaeological wall painting: comparing treatments depending on the painting technique

2021 ◽  
Author(s):  
Teresa López-Martínez ◽  
Francisco José Collado-Montero ◽  
Ana García-Bueno
Keyword(s):  
Acrylic Resin ◽  
Wall Painting ◽  
Ethyl Silicate ◽  
Wall Paintings ◽  
Painting Technique ◽  
Stone Material ◽  
Painting Techniques

Consolidation is a treatment of great importance for archaeological wall paintings due to their state of preservation, in which the lack of cohesion of the mortar and the pulverulence of the pictorial layer are common. The objective of this work has been to evaluate consolidation tests that have been carried out on decontextualized fragments belonging to five different wall paintings (from different periods and with differences in their state of conservation and in their painting techniques). For this, two of the most used treatments in consolidation of archaeological coatings, such as an acrylic resin and ethyl silicate, have been compared with two treatments that use nanoparticles, such as nanolimes and nano ethyl silicate, together with a bioconsolidation treatment used until present mainly for the consolidation of stone material: bacterial carbonatogenesis.

Gum arabic helps prepare better lacey polymer films for specimen support in electron microscopy

1993 ◽  
Vol 51 ◽  
pp. 240-241
Author(s):  
Shailesh R. Sheth ◽  
Jayesh R. Bellare
Keyword(s):  
Electron Microscopy ◽  
Polymer Films ◽  
Gum Arabic ◽  
Complete Removal ◽  
Ammonium Bromide ◽  
Release Agent ◽  
Astigmatism Correction ◽  
Long Time ◽  
Micro Holes ◽  
Cetyl Trimethyl Ammonium

Specimen support and astigmatism correction in Electron Microscopy are at least two areas in which lacey polymer films find extensive applications. Although their preparation has been studied for a very long time, present techniques still suffer from incomplete release of the film from its substrate and presence of a large number of pseudo holes in the film. Our method ensures complete removal of the entire lacey film from the substrate and fewer pseudo holes by pre-treating the substrate with Gum Arabic, which acts as a film release agent.The method is based on the classical condensation technique for preparing lacey films which is essentially deposition of minute water or ice droplets on the substrate and laying the polymer film over it, so that micro holes are formed corresponding to the droplets. A microscope glass slide (the substrate) is immersed in 2.0% (w/v) aq. CTAB (cetyl trimethyl ammonium bromide)-0.22% (w/v) aq.

Effective Clinical Interviewing

1978 ◽  
Vol 9 (4) ◽  
pp. 265-271 ◽  
Author(s):  
Pauline T. Flynn
Keyword(s):  
Family Members ◽  
Essential Elements ◽  
Speech Language Pathologist ◽  
Lay Persons ◽  
Clinical Interviewing ◽  
Client Management

Speech, language, and hearing professionals rely on many individuals to provide information about a client. Management programs, in part, are devised, modified, and evaluated according to responses obtained from the client, family members, educators, and other professional and lay persons who have contact with the client. The speech-language pathologist has the responsibility of obtaining pertinent, complete, unbiased information about clients. This article provides an overview of the essential elements of an interview.

Chronic immobilization stress induces anxiety-related behaviors and affects brain essential minerals in male rats

2020 ◽  
pp. 1-8
Author(s):  
Zafer Sahin ◽  
Alpaslan Ozkurkculer ◽  
Omer Faruk Kalkan ◽  
Ahmet Ozkaya ◽  
Aynur Koc ◽  
...  
Keyword(s):  
Immobilization Stress ◽  
Central Area ◽  
Essential Elements ◽  
Male Rats ◽  
Control Group ◽  
Male Wistar Rats ◽  
Swimming Test ◽  
The Brain ◽  
Center Area ◽  
Chronic Immobilization Stress

Abstract. Alterations of essential elements in the brain are associated with the pathophysiology of many neuropsychiatric disorders. It is known that chronic/overwhelming stress may cause some anxiety and/or depression. We aimed to investigate the effects of two different chronic immobilization stress protocols on anxiety-related behaviors and brain minerals. Adult male Wistar rats were divided into 3 groups as follows ( n = 10/group): control, immobilization stress-1 (45 minutes daily for 7-day) and immobilization stress-2 (45 minutes twice a day for 7-day). Stress-related behaviors were evaluated by open field test and forced swimming test. In the immobilization stress-1 and immobilization stress-2 groups, percentage of time spent in the central area (6.38 ± 0.41% and 6.28 ± 1.03% respectively, p < 0.05) and rearing frequency (2.75 ± 0.41 and 3.85 ± 0.46, p < 0.01 and p < 0.05, respectively) were lower, latency to center area (49.11 ± 5.87 s and 44.92 ± 8.04 s, p < 0.01 and p < 0.01, respectively), were higher than the control group (8.65 ± 0.49%, 5.37 ± 0.44 and 15.3 ± 3.32 s, respectively). In the immobilization stress-1 group, zinc (12.65 ± 0.1 ppm, p < 0.001), magnesium (170.4 ± 1.7 ppm, p < 0.005) and phosphate (2.76 ± 0.1 ppm, p < 0.05) levels were lower than the control group (13.87 ± 0.16 ppm, 179.31 ± 1.87 ppm and 3.11 ± 0.06 ppm, respectively). In the immobilization stress-2 group, magnesium (171.56 ± 1.87 ppm, p < 0.05), phosphate (2.44 ± 0.07 ppm, p < 0.001) levels were lower, and manganese (373.68 ± 5.76 ppb, p < 0.001) and copper (2.79 ± 0.15 ppm, p < 0.05) levels were higher than the control group (179.31 ± 1.87 ppm, 3.11 ± 0.06 ppm, 327.25 ± 8.35 ppb and 2.45 ± 0.05 ppm, respectively). Our results indicated that 7-day chronic immobilization stress increased anxiety-related behaviors in both stress groups. Zinc, magnesium, phosphate, copper and manganese levels were affected in the brain.

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