Experimental hydrops of labyrinth

2021 ◽  
pp. 37-43
Author(s):  
Vladimir Vyacheslavovich Kiselev ◽  
Dmitriy Valerievich Pomukhin
Keyword(s):  
Endolymphatic Hydrops ◽  
Vestibular Dysfunction ◽  
Initial State ◽  
Optimal Method ◽  
Research Results ◽  
Lack Of Knowledge

Difficulties in approbation of drugs for the treatment of vestibular dysfunction are associated with a lack of knowledge of the mechanisms of its development. In particular, it is necessary to take into account the initial state of the vestibular analyzer, which significantly affects the research results. Therefore, the modeling of pathological processes that manifest in vestibular dysfunction is the optimal method for studying both its mechanisms and the effectiveness of medications for its relief. Endolymphatic hydrops is found in most diseases manifested by peripheral vestibular syndrome. We have proposed several models of endolymphatic hydrops in rats to study various aspects of its pathogenesis and approbate means of treating vestibular dysfunction.

Modalități de consolidare și prezentare estetică în cazul suportului de lemn a trei icoane de secol XVI-XVII din categoria tezaur

2016 ◽  
Vol 30 ◽  
pp. 302-315
Author(s):  
Raluca Marilena Dumitrescu ◽  
Keyword(s):  
Initial State ◽  
Research Results ◽  
Restoration Process ◽  
Original Technique ◽  
Wooden Structure ◽  
Human Interventions ◽  
Points Of View ◽  
In The Beginning ◽  
Short Presentation

The article comprises a short presentation of the icons in the beginning, the project that they are included in, some short data about typology, style, and location in time. There are given some technical assessments of the construction of the panels, decorative elements and additional materials for the whole ensemble. The setting up of the degradations are divided from different points of view, as influence of natural inevitable medium factors in certain conditions, as human interventions, as results of the religious role of the objects, as hazards occurred in time and non of the less as intended, theft or vandalism acts. Further, it is thoroughly presented their initial state of conservation in which concerns the degradations of the wooden structure, with examples and debates about the reasons they were set in. Then, it follows the methods approached for consolidation, and also the esthetical ways of presentation of the intervened areas. There are exposed – from an ethic perspective, the reasons that led to the choosing of respective materials and techniques, according to research results, age, original technique, conservation state and value of the three objects. There are illustrated and explained the working stages and techniques, also detailed issues about the nature, percentage and way the materials employed were combined. In the end, the gratitude of the author is expressed towards the help of the specialists in the research and restoration process.

Tensor Interpolation of Tribological Wear in Ionitriding of 316L Steel

2010 ◽  
Vol 165 ◽  
pp. 43-49
Author(s):  
Tadeusz Frączek ◽  
Michał Olejnik ◽  
Marcin Knapiński ◽  
Grzegorz Biernat
Keyword(s):  
Glow Discharge ◽  
Polynomial Interpolation ◽  
Research Field ◽  
Nitriding Process ◽  
Initial State ◽  
Research Results ◽  
Multidimensional Interpolation ◽  
316L Steel ◽  
The Mathematical Model ◽  
First Time

The research results for polynomial tensor interpolation of tribological wear of austenitic 316L steel are analyzed for the first time in this paper. A tribological study was carried out on the tester T-05, both for samples after the process of glow discharge nitriding and for samples of 316L steel in the initial state [1, 2]. The influence of the nitriding parameters on the weight loss of the samples during the abrasion test and the friction coefficient of the abrasion pair were determined. In this paper the actual results which were obtained so far during the research of tribological wear in an interpolative area were put together with the theoretically determined and experimentally verified real research results for tribological wear in the area beyond the scope of interpolation. It was determined that each of the selected nitriding parameters significantly affects abrasive wear resistance of 316L steel, at the same time, in the nitriding process, as time and temperature increase the resistance to wear abrasion becomes better. The mathematical model for planning of experiments with different glow discharge nitriding processes combined with polynomial interpolation of the obtained research results of many variable functions will enable to choose the nitriding process parameters to obtain the assumed and required property of useful nitrified elements. The developed computer program enables multidimensional interpolation of the research results and is a universal tool which can be used in any research field.

scholarly journals ANALISIS PERSEPSI PETANI PETERNAK SAPI POTONG TERHADAP PERAN PENYULUH DI KECAMATAN SANGKUB KABUPATEN BOLAANG MONGONDOW UTARA

ZOOTEC ◽  
2017 ◽  
Vol 37 (2) ◽  
pp. 513
Author(s):  
Repli . Talibo ◽  
B F.J Sondakh ◽  
A A. Sajow ◽  
J . Lainawa
Keyword(s):  
Likert Scale ◽  
Farm Management ◽  
Extension Agents ◽  
Research Results ◽  
Farmer Groups ◽  
Cattle Farming ◽  
The Village ◽  
Descriptive Method ◽  
Lack Of Knowledge

ANALYSIS OF CATTLE FARMERS PERCEPTION ON THE ROLE OF EXTENSION AGENTS IN SANGKUB DISTRICT NORTH OF BOLAANG MONGONDOW  REGENCY. There are about 596 cattle farmers in Sangkub county North of Bolaang Mongondow Regency.  Two hundreds and ten farmers from them are being corporated in 21 farmer groups. From those twenty one farmers, seven farmer groups that are actively categorized in farming operation, while others are considered inactive anymore. The reason for that might be due to the lack of capital or farm management misconduct, or the lack of knowledge in the value of cattle farming. The present study was designed to elaborate the perception of cattle farmers on the role of extension agents in Sangkub County North ofBolaang Mongondow  Regency.            The research was conducted in a descriptive method that delineated phenomenon of research variables. Cattle farmers group samples were choosen purposely and finally farmers in the village of Tombolango Induk, Busisingo, and Sangkub II were included in the study. All of thirty cattle farmers were  taken as samples. Variables measurement were conducted using ‘Likert Scale’ and scoring at each indicator.            Research results showed that perception of cattle farmers on the role of extension agents in Sangkub County North  of Bolaang Mongondow  Regency can be rated as follow: in term of extension agents as facilitator: 96.67% good, 3.33% very good; extension agents as mediator: 83.33% good enough (fair), 3.33% good; extension egents as motivator: 83.33% good enough (fair), 16.67% very good; extension agents as educator: 93.33% good, 6.67% very good; extension agents as communicator: 100% good.  Overall, it can be concluded that perception of cattle farmers on the role of extension agents in Sangkub County of Bolaang Mongondow Utara Regency rated 93.33% as good and 6.67% as very good. Keywords: Perception,Cattle Farmers, Extension Agents, North of Bolaang Mogondow  Regency

scholarly journals Online Learning Competencies of Students: Research Results at Ho Chi Minh City University of Technology and Education

2021 ◽  
Vol 4 (2) ◽  
pp. 15-21
Author(s):  
Hong Bui Van ◽  
Pham Xuan Huy
Keyword(s):  
Online Learning ◽  
Learning Environment ◽  
Industrial Revolution ◽  
Ho Chi Minh City ◽  
Research Results ◽  
University Of Technology ◽  
New Learning ◽  
Technology And Education ◽  
Learning Competencies ◽  
Lack Of Knowledge

The 4th Industrial Revolution gives us a new protocol in learning named “Online learning”, this new kind on learning is special suitable with the quarantine condition cause by COVID-19. However, we are lack of knowledge how to increase results of online learning. This research based on the survey in students who difference in result in the same time using online learning. Thanks for this research, we have some first theories about the competences for students on new learning environment. These theories can be very useful when we want to increase the learning results.

scholarly journals Comparing Large-unit and Bitwise Linear Approximations of SNOW 2.0 and SNOW 3G and Related Attacks

2021 ◽  
pp. 71-103
Author(s):  
Xinxin Gong ◽  
Bin Zhang
Keyword(s):  
Linear Approximation ◽  
The Other ◽  
Initial State ◽  
Large Unit ◽  
Research Results ◽  
Linear Approximations ◽  
Correlation Attack ◽  
Correlation Attacks

In this paper, we study and compare the byte-wise and bitwise linear approximations of SNOW 2.0 and SNOW 3G, and present a fast correlation attack on SNOW 3G by using our newly found bitwise linear approximations. On one side, we reconsider the relation between the large-unit linear approximation and the smallerunit/ bitwise ones derived from the large-unit one, showing that approximations on large-unit alphabets have advantages over all the smaller-unit/bitwise ones in linear attacks. But then on the other side, by comparing the byte-wise and bitwise linear approximations of SNOW 2.0 and SNOW 3G respectively, we have found many concrete examples of 8-bit linear approximations whose certain 1-dimensional/bitwise linear approximations have almost the same SEI (Squared Euclidean Imbalance) as that of the original 8-bit ones. That is, each of these byte-wise linear approximations is dominated by a single bitwise approximation, and thus the whole SEI is not essentially larger than the SEI of the dominating single bitwise approximation. Since correlation attacks can be more efficiently implemented using bitwise approximations rather than large-unit approximations, improvements over the large-unit linear approximation attacks are possible for SNOW 2.0 and SNOW 3G. For SNOW 3G, we make a careful search of the bitwise masks for the linear approximations of the FSM and obtain many mask tuples which yield high correlations. By using these bitwise linear approximations, we mount a fast correlation attack to recover the initial state of the LFSR with the time/memory/data/pre-computation complexities all upper bounded by 2174.16, improving slightly the previous best one which used an 8-bit (vectorized) linear approximation in a correlation attack with all the complexities upper bounded by 2176.56. Though not a significant improvement, our research results illustrate that we have an opportunity to achieve improvement over the large-unit attacks by using bitwise linear approximations in a linear approximation attack, and provide a newinsight on the relation between large-unit and bitwise linear approximations.

scholarly journals PERSEPSI MAHASISWA TERHADAP TINDAKAN PLAGIARISME DALAM PENYUSUNAN TUGAS AKHIR

EDUTECH ◽  
2018 ◽  
Vol 16 (3) ◽  
pp. 338
Author(s):  
Hana Silvana ◽  
Gema Rullyana ◽  
Angga Hadiapurwa
Keyword(s):  
Higher Education ◽  
Information Technology ◽  
Analytical Method ◽  
Main Issue ◽  
Limited Time ◽  
Academic World ◽  
Research Results ◽  
Time Availability ◽  
Lack Of Knowledge

Abstract, This research is based on the issue of plagiArism in the academic world especially in Higher Education. The main issue studied in this study is the perception of students on the act of plagiarism in writing final assignment. This study was conducted with the aim to describe the act of plagiarism in preparing the final assignment of students. The method used in this research is descriptive analytical method. The informants are students of UPI Education Sciences Faculty . The research was conducted in 2017 at odd semester. The research results showed that there were lack of knowledge about styles of writing, limited time availability in the preparation of the final task of students, the development of information technology facilitates and opens opportunities to cheat. Moreover, many lecturers have not addressed plagiarism issue, use of anti plagiarism ap-plication is minimum, and socialization of plagiarism issue is still not sufficient. This research also found that training on final assignment writing has not been done as needed.Abstrak, Penelitian ini dilatar belakangi dengan isu plagiarisme dalan dunia akademik khususnya di Perguruan Tinggi. Permasalahan pokok yang dikaji pada penelitian ini persepsi ma-hasiswa terhadap tindak plagiarisme di dalam penyusunan tugas akhir mahasiswa. Penelitian ini dilakukan dengan tujuan untuk mendeskripsikan tentang tindak plagiarisme di dalam penyusunan tugas akhir mahasiswa. Pendekatan penelitian ini menggunakan pendekatan kualitatif dengan metode yang digunakan yaitu metode deskriptif. Informan penelitian ini adalah mahasiswa di ling-kungan Fakultas Ilmu Pendidikan UPI. Adapun hasil penelitian yang diperoleh adalah minimnya pengetahuan mengenai gaya selingkung penulisan, ketersediaan waktu yang terbatas dalam penyusunan tugas akhir mahasiswa, perkembangan teknologi informasi (khususnya internet) yang memudahkan dan membuka peluang berbuat curang, sebagian dosen belum protektif pada isu pla-giarisme, penggunaan aplikasi anti plagiarisme masih minim, juga sosialisasi mengenai isu plagia-risme yang masih belum mencukupi kebutuhan informasi yang perlu diketahui oleh mahasiswa. Kegiatan Workshop atau pelatihan penulisan tugas akhir yang belum dilaksanakan sesuai kebu-tuhan.

scholarly journals Knowledge, Attitudes and Behaviours Towards Exclusive Breastfeeding Amongst Mothers in Sarawak, Malaysia: A Qualitative Study

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Dr Imogen Margaret Buss
Keyword(s):  
Exclusive Breastfeeding ◽  
Community Education ◽  
Working Hours ◽  
Structured Interviews ◽  
New Mothers ◽  
Optimal Method ◽  
Positive Attitudes ◽  
Flexible Working Hours ◽  
Insufficient Milk ◽  
Lack Of Knowledge

Introduction: Exclusive breastfeeding is recommended as the optimal method of infant feeding for the first six months, but the rate remains low in many countries, including Malaysia. It is important to understand barriers preventing exclusive breastfeeding, to enable tackling these issues and thereby improving maternal and child health. This study aims to do this by exploring the knowledge, attitudes and behaviours of mothers towards breastfeeding in Sarawak, Malaysia. Material and Methods: Qualitative methods were employed, using semi-structured interviews with an interpreter, conducted in Sarawak General Hospital between 16th April and 11th May 2012. Convenience sampling was used to recruit participants from the maternity wards. Interviews were conducted using a topic guide, were audio-recorded and transcribed verbatim. Analysis was based on conventional content analysis, with codes and themes developing from the interviews. Results: Analysis of the 17 interviews identified five major themes; (1) positive attitudes towards breastfeeding, (2) lack of knowledge relating to exclusive breastfeeding, (3) fear of insufficient milk, (4) methods to improve awareness and knowledge of breastfeeding, (5) improvements in the workplace. There is a lack of knowledge amongst mothers in Malaysia regarding breastfeeding, causing anxiety and early discontinuation of breastfeeding. Methods to improve education of mothers and healthcare staff have been suggested, as well as improvements to encourage breastfeeding in the workplace. Conclusion: Focused education for new mothers and widespread community education may help improve breastfeeding continuation rates. The provision of workplace facilities and flexible working hours for new mothers may help overcome physical barriers preventing breastfeeding continuation once back at work.

Contributions to the mechanisms of mitosis and roles of cytoplasmic microtubules from ultrastructural analyses of fungi

1978 ◽  
Vol 36 (2) ◽  
pp. 266-267
Author(s):  
I. Brent Heath
Keyword(s):  
Nuclear Envelope ◽  
Direct Application ◽  
Ultrastructural Analysis ◽  
General Interest ◽  
Research Results ◽  
Organelle Motility ◽  
Cytoplasmic Microtubules

Detailed ultrastructural analysis of fungal mitotic systems and cytoplasmic microtubules might be expected to contribute to a number of areas of general interest in addition to the direct application to the organisms of study. These areas include possibly fundamental general mechanisms of mitosis; evolution of mitosis; phylogeny of organisms; mechanisms of organelle motility and positioning; characterization of cellular aspects of microtubule properties and polymerization control features. This communication is intended to outline our current research results relating to selected parts of the above questions.Mitosis in the oomycetes Saprolegnia and Thraustotheca has been described previously. These papers described simple kinetochores and showed that the kineto- chores could probably be used as markers for the poorly defined chromosomes. Kineto- chore counts from serially sectioned prophase mitotic nuclei show that kinetochore replication precedes centriole replication to yield a single hemispherical array containing approximately the 4 n number of kinetochore microtubules diverging from the centriole associated "pocket" region of the nuclear envelope (Fig. 1).

Tensile Failure of 55-Nitinol Wire

1975 ◽  
Vol 33 ◽  
pp. 46-47
Author(s):  
F. I. Grace
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Stoichiometric Composition ◽  
Tensile Failure ◽  
Initial State ◽  
Initial Shape ◽  
Nitinol Wire ◽  
Cscl Type ◽  
Shear Transformation

An interest in NiTi alloys with near stoichiometric composition (55 NiTi) has intensified since they were found to exhibit a unique mechanical shape memory effect at the Naval Ordnance Laboratory some twelve years ago (thus refered to as NITINOL alloys). Since then, the microstructural mechanisms associated with the shape memory effect have been investigated and several interesting engineering applications have appeared.The shape memory effect implies that the alloy deformed from an initial shape will spontaneously return to that initial state upon heating. This behavior is reported to be related to a diffusionless shear transformation which takes place between similar but slightly different CsCl type structures.

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