Characteristics of hyperchromic neurons from a cortical focus of local destruction

1983 ◽  
Vol 96 (2) ◽  
pp. 1158-1160
Author(s):  
V. N. Kleshchinov ◽  
E. I. Koidan ◽  
N. S. Kolomeets
Keyword(s):  
Local Destruction ◽  
Hyperchromic Neurons ◽  
Cortical Focus

Protection of buildings and structures against progressive collapse within the framework of legislative and regulatory requirements

2019 ◽  
pp. 46-54 ◽  
Keyword(s):  
Progressive Collapse ◽  
Professional Community ◽  
Regulatory Requirements ◽  
Technical Regulation ◽  
Regulatory Documents ◽  
Common Position ◽  
Local Destruction

At present, the current legislative and regulatory documents do not contain a clear and unambiguous answer to the question, what buildings and structures should be designed resistant to progressive collapse. In this regard, the analysis of the legal and regulatory requirements of the need for calculations to prevent the progressive collapse of buildings and structures due to hypothetical or suspected local destruction is presented. The main legislative requirements of technical regulation in the field of ensuring the mechanical safety of buildings and structures, as well as the requirements of regulatory documents regarding the design of the protection of building and structures against progressive collapse are considered. The analysis of the fundamental principles features of the calculation for the structural protection against progressive collapse is given. Some issues discussed by the professional community in the direction of possible ways of solving the actual problems of the presented problem are considered. The conclusion is made about the need for further dialogue of the professional community on the development of a common position on the protection of buildings and structures from progressive collapse, which should be reflected in the legislative and regulatory requirements.

A method of technical diagnostics for offshore structures

1994 ◽  
Vol 16 (2) ◽  
pp. 43-48
Author(s):  
Do Son
Keyword(s):  
Diagnostic Method ◽  
Joint Venture ◽  
Oil And Gas ◽  
Residual Life ◽  
Life Time ◽  
Offshore Structures ◽  
Technical Diagnostics ◽  
Offshore Platforms ◽  
South Vietnam ◽  
Local Destruction

This paper describes the results of measurements and analysis of the parameters, characterizing technical state of offshore platforms in Vietnam Sea. Based on decreasing in time material characteristics because of corrosion and local destruction assessment on residual life time of platforms is given and variants for its repair are recommended. The results allowed to confirm advantage of proposed technical diagnostic method in comparison with others and have been used for oil and gas platform of Joint Venture "Vietsovpetro" in South Vietnam.

Justification of technical parameters of an ultrasonic device for improvement of meat salting efficiency

2020 ◽  
pp. 75-77
Author(s):  
Ekaterina Sergeevna Krasnikova ◽  
Natalya Lvovna Morgunova ◽  
Phelix Yakovlevich Rudik ◽  
Aleksandr Vladimirovich Krasnikov ◽  
Nikita Andreevich Semilet
Keyword(s):  
Technological Process ◽  
Muscle Tissue ◽  
Muscle Fibers ◽  
Tissue Structure ◽  
Tissue Microstructure ◽  
Technical Parameters ◽  
Ultrasonic Device ◽  
Lamb Meat ◽  
Local Destruction ◽  
Cross Striation

The results of a study of the effect of wet ultrasonic lamb meat salting on the muscle tissue microstructure are presented, and the technical parameters of the ultrasonic device are justified. It has been established that significant destruction and swelling of muscle fibers, local destruction of the sarcolemma with its pronounced rugosity are observed at ultrasonic salting with a frequency of 35 kHz, the cross-striation is poorly expressed, the tissue structure is disturbed. An ultrasonic salting with a frequency of 26 kHz was accompanied an increase in the number of transverse microcracks and crevices, loosening of muscle fibers, the formation of cavities between them while retention of the tissue structure, which contributes to the appearance of a brine between muscle fibers and accelerates its penetration into the fiber. It allows us to recommend ultrasound at a frequency of 26 kHz for cavitation activation of the brine to intensify the technological process of lamb meat salting.

scholarly journals The Use of BEREP4 Immunohistochemistry Staining for Detection of Basal Cell Carcinoma

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Anthony Paulo Sunjaya ◽  
Angela Felicia Sunjaya ◽  
Sukmawati Tansil Tan
Keyword(s):  
Basal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Basal Cell ◽  
High Sensitivity ◽  
Common Type ◽  
Routine Examination ◽  
Cancer Society ◽  
Immunohistochemistry Staining ◽  
The World ◽  
Local Destruction

Basal Cell Carcinoma (BCC) is the most common type of malignant cancer found in the world today with a 3–10% increase in incidence each year. The American Cancer Society reported that 8 out of 10 patients with skin cancer are suffering from BCC with over 2 million new cases each year. BCC needs to be detected at the early stages to prevent local destruction causing disabilities to patients and increasing treatment costs. Furthermore, BCC patients who have undergone surgery are still at risk for recurrence, especially when the surgery performed fails to remove all the BCC cells, even when conventional histopathological testing after surgery has reported a surgically free margin. This review aims to evaluate studies on the use of BerEP4 immunohistochemistry staining on pathological sections of various types of BCC as well as its shortfalls. BerEP4 is a monoclonal antibody which detects specific epithelial-glycoprotein-adhesion-molecules (EpCAM) found on BCC cells. Various studies have shown that BerEP4 has a high sensitivity and specificity in detecting only BCC cells. The use of BerEP4 immunohistochemistry testing for the routine examination of cases of BCC is expected to be able to increase and improve early diagnosis as well as prevent recurrence after surgery.

APPLICATION OF PIXE TO CANCER RESEARCH

1992 ◽  
Vol 02 (04) ◽  
pp. 529-534 ◽  
Author(s):  
HUIYING YAO ◽  
XIANZHOU ZENG ◽  
JIYAO CHEN ◽  
WEN CHEN ◽  
HUAIXIN CAI ◽  
...  
Keyword(s):  
Cancer Research ◽  
Trace Elements ◽  
Photodynamic Therapy ◽  
Normal Tissue ◽  
Second Generation ◽  
Tumor Tissue ◽  
Photodynamic Effect ◽  
Malignant Tumours ◽  
Local Destruction

Photodynamic therapy (PDT) is a promising approach to the local destruction of malignant tumours. This method is based on the partially selective retension in tumor tissue of the photosensitizers which have photodynamic effect. It is important for PDT to determine the photosentizer concentration in tumor and in normal tissue. We quantitatively analysed the concentration of the metallic phthalocyanines, a class of photosensitizers now recognized as “second generation” PDT drugs and studied its action in different time by PIXE technique. The paper shows also the correlation between trace elements and cancer.

Destruction of microplastics in the natural environment

2021 ◽  
Author(s):  
Vladimir Kovalevski ◽  
Mikhail Zobkov
Keyword(s):  
Bottom Sediments ◽  
Chemical Elements ◽  
Morphological Structure ◽  
Subsequent Growth ◽  
Russian Science ◽  
Specific Density ◽  
Local Oxidation ◽  
Energy Dispersive Microanalysis ◽  
Local Destruction ◽  
The Individual

<p>Morphological structure and chemical composition of environmental microplastics (MPs) extracted from water and bottom sediments of Lake Onego were studied. Raman spectroscopy was used to identify MPs polymer types and scanning electron microscopy with energy dispersive microanalysis was used to study the morphology and trace elements composition of inclusions on their surface. The features of the destruction of MPs, as well as the presence of various chemical elements on their surface including heavy metals, were investigated. Four main mechanisms of MPs microdestruction have been identified: (1) Local destruction of monophasic MPs caused by local oxidation and cleavage of thin flakes and fragments with the formation of nanoscale plastics. (2) The destruction of multiphase microplastics predominantly determined by the selective destruction of one of the phases of the composite, for example, the ligament scission between the individual components of the plastic with their separation. (3) Microbiological destruction of MPs under the influence of diatoms by fixing spores of diatoms on defects of MPs with their subsequent growth, deflection, and separation of nanoscale polymer particles. (4) Mineralogical destruction of MPs associated with the sorption of chemical elements and crystallization of nanocrystals, which under appropriate conditions begin to grow and break-up the MPs accelerating the process of its destruction. The last mechanism have not yet been reported. These mechanisms initiate nanoplastics formation, which increases particles mobility in the aquatic environment and their threat to water organisms. At the same time, the fouling with diatoms (with a silica shell) and the sorption of heavy elements increase the bulk specific density of MPs and contribute to its accumulation in bottom sediments.</p><p>The study was supported by the Russian Science Foundation grant number 19-17-00035.</p>

scholarly journals Primary Inverted Papilloma of the Middle Ear

2021 ◽  
pp. 014556132110533
Author(s):  
Sarantis Blioskas ◽  
Iordanis Konstantinidis ◽  
Ioannis Antoniadis ◽  
Anastasia Kypriotou ◽  
Prodromos Hytiroglou ◽  
...  
Keyword(s):  
Otitis Media ◽  
Malignant Transformation ◽  
Middle Ear ◽  
Inverted Papilloma ◽  
Radiological Findings ◽  
Diagnostic Challenge ◽  
Recurrence Rates ◽  
Rare Finding ◽  
Local Destruction ◽  
Serous Otitis Media

Significance Statement: Primary middle ear inverted papilloma is an exceedingly rare finding posing a diagnostic challenge, as symptomatology often mimics common clinical entities like serous otitis media. Clinical and radiological findings are not specific, whilst high recurrence rates, local destruction, and potential malignant transformation constitute an overall demanding surgical challenge, requiring aggressive procedures. We report the case of a primary inverted papilloma of the middle ear, discussing diagnostic and therapeutic issues.

scholarly journals Cortical Focus Drives Widespread Corticothalamic Networks during Spontaneous Absence Seizures in Rats

2002 ◽  
Vol 22 (4) ◽  
pp. 1480-1495 ◽  
Author(s):  
Hanneke K. M. Meeren ◽  
Jan Pieter M. Pijn ◽  
Egidius L. J. M. Van Luijtelaar ◽  
Anton M. L. Coenen ◽  
Fernando H. Lopes da Silva
Keyword(s):  
Absence Seizures ◽  
Cortical Focus
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