scholarly journals EMBRYO YIELD OF COWS-DONORS AND FUNCTIONAL ASYMETRY OF THE OVARIES

2018 ◽  
Vol 51 ◽  
pp. 247-255 ◽  
Author(s):  
S. O. Sidashova ◽  
V. F. Stahovski ◽  
S. I. Kovtun

In recent years, experiments aimed at studying the structural asymmetry of paired organs have been conducted increasingly in veterinary medicine. The main factor, which prompted this interest, was extensive use of reproductive biotechnology methods to solve the problems of infertility. In experiments on laboratory animals and in clinical medicine, several authors have found that the nature of pathological processes in paired organs had some differences. Parameters of species functional asymmetry at the level of systems and organs are considered in terms of enantiomorphousness as a trait of adaptive evolution. The study of structural features of physiological and pathological processes in paired gonads of cows will increase the efficiency of biotechnological methods of folliculogenesis stimulation and production of more viable eggs. On the other side, it will reduce the cost of expensive drugs and working time due to more efficient pre-selection of animals for producing embryos. The aim of the research was to study structure and pattern of functional asymmetry of ovaries of high-producing cows and its influence on the level of quality embryos formation. Material and methods of research. The researches were carried out during 2011-2012 at two dairy breeding farms – "Agro-Soyuz" JSC (Dnipropetrovsk region) and "RVD-Agro" PE (Cherkasy region). Two groups of high-producing cows were formed of milking breeding stock, yields of which during the best lactation exceeded the average of the herd by 20-60% The animals were tested during the phased comprehensive research on suitability to removing embryos from them and use of the selected cows in the group of regular donors of embryos, in accordance with applicable requirements of embryo transplantation technology for cattle. During the selection and preparation of cows-donors, washing embryos and their morphological evaluation, we simultaneously performed collecting and analysing data on the activity of functional entities of the left and the right ovaries during luteal phase by palpation according to the advanced approaches. The comparison was performed during cows’ induced cycles using injections of synthetic analogues of F2α prostaglandin on standard procedures and after hormonally induced polyovulation in donors using follicle stimulating hormone drugs and on the standard and prolonged procedures. Results. Pattern of relationship between functional asymmetry of ovaries of high-producing cows-donors and their level of embryo yield was found. Palpation revealed that at cows with sufficient technology and high embryo yield after hormonally induced superovulation, ratio of the number of corpora luteal of the left ovary to the right had a tendency to approach the universal proportion of 38%:62% which is typical for luteogenes of cows in the induced and spontaneous cycles. In group of cows with low yields of high-quality embryos, the ratio of ovarian corpora luteal L: R was significantly different. The observed indicator of functional ovarian asymmetry needs to be researched more and it can be used as a criterion for resource-raising effect at selection of stable donors of embryos at high-yielding herds in the future. The significant change of functional asymmetry of donors-cows’ ovaries after hormone stimulation of polyovulation was shown, including the found phenomenon of inversion of dominant activity of gonads. It was experimentally stated that the high level of producing qualitative embryos for transplantation (9,50-9,86 per washing) was characterized for the cows with sufficient functional asymmetry of ovaries after polyovulation. Conclusions. Based on the fact that high-quality embryos from high-producing cows of different breeds will have breeding, biological and economic values in the world market of genetic resources in the next years, it is necessary to step up scientific research to study the patterns of functional asymmetry of the cows’ reproductive system as one of important biological factors influencing on effectiveness of embryo transplantation technology.

Entropy ◽  
2020 ◽  
Vol 22 (11) ◽  
pp. 1288
Author(s):  
Fuyuan Liao ◽  
Keying Zhang ◽  
Lingling Zhou ◽  
Yanni Chen ◽  
Jeannette Elliott ◽  
...  

Local vibration has shown promise in improving skin blood flow (SBF). However, there is no consensus on the selection of the best vibration frequency. An important reason may be that previous studies utilized time- and frequency-domain parameters to characterize vibration-induced SBF responses. These parameters are unable to characterize the structural features of the SBF response to local vibrations, thus contributing to the inconsistent findings seen in vibration research. The objective of this study was to provide evidence that nonlinear dynamics of SBF responses would be an important aspect for assessing the effect of local vibration on SBF. Local vibrations at 100 Hz, 35 Hz, and 0 Hz (sham vibration) with an amplitude of 1 mm were randomly applied to the right first metatarsal head of 12 healthy participants for 10 min. SBF at the same site was measured for 10 min before and after local vibration. The degree of regularity of SBF was quantified using a multiscale sample entropy algorithm. The results showed that 100 Hz vibration significantly increased multiscale regularity of SBF but 35 Hz and 0 Hz (sham vibration) did not. The significant increase of regularity of SBF after 100 Hz vibration was mainly attributed to increased regularity of SBF oscillations within the frequency interval at 0.0095–0.15 Hz. These findings support the use of multiscale regularity to assess effectiveness of local vibration on improving skin blood flow.


2021 ◽  
Vol 8 (1) ◽  
pp. 193-200
Author(s):  
Ari Purno Wahyu ◽  
Umi Hayati

Choosing a major is not an easy matter. There are many factors that must be taken into account and carefully thought out so that in choosing a major, it will cause big losses. There are many ways to determine the selection of majors, one of which is by using fuzzy logic. Determination of majors is determined from the results of the selection test in the academic field with the subjects of Mathematics, English and Computer Knowledge. With the aim of recommending the selection of the right major according to academic abilities and improving quality. By using the fuzzy inference model Mamdani max-min method. The system simulation was tried using the MATLAB Fuzzy Toolbox software. The system design is carried out in several stages, namely: (1) formation of fuzzy sets, (2) formation of rules, (3) determination of the composition of rules, and (4) confirmation (defuzzification). Defuzzification is carried out using the Composite Moment method, with the types of membership functions used are mf-triangular, mf-trapezoid and mf-gaussian. From the results of the tests carried out, it shows that the mf-triangular and mf-trapezoid membership function types produce almost the same level of accuracy. While the membership function type mf-gaussian produces a high level of accuracy for mathematics by 87.50%, English 100% and computer knowledge 81.58%.  


2017 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Cahya Kusuma ◽  
I Made Ariana

Indonesia is an archipelagic nation and most shallow water channel in Western Indonesia, making the concept of mini submarine use by the Navy to be the right choice. One of the most important engineering is to design a mini submarine propeller with a high level of optimization. This research method is based on the result of numerical simulation using Computer Fluid Dynamic (CFD) which use B-series as base with skew variation 36o, 45o, 54o. It is expected that the results of this research can provide solutions in the selection of efficient design propeller for mini submarine 29m. With the open water diagrams generated then obtained the greatest efficiency value on B4-522 with skew obtained at 45 ° skew angle. The optimum velocity value is at J = 0.07 at 8.9 knots with an efficiency value of 0.856.


Author(s):  
Шишов ◽  
Cergey Shishov ◽  
Кальней ◽  
Valentina Kalney

Based on the identified global challenges of the XXI century, the authors attempted to define the main directions of development of pedagogical education in Russia. The article provides the author´s view on the possible directions of development of pedagogical education in Russia. Among them: the international harmonization of structures and content of teacher education related to an objective necessity of formation of a common, interdependent Eurasian educational space; humanization, humanitarization of professional education of future teachers related to the humanistic orientation of public consciousness at the international level; vocational selection of future teachers as the basis for the formation of high-quality professionals with a high level of readiness; practice-oriented character of teacher education associated with the consideration of not only the specialty, but also the nature of the institutions; the relationship and interdependence of cultural, historical, psychological-pedagogical, national and organizational basis for the design and construction of higher pedagogical education; selection to educational institutions on grounds of professional suitability; operation and development of the existing system of continuous postgraduate) teacher education as a condition of permanent increase of level of professionalism of teachers.


Author(s):  
M L Cruz ◽  
T R Preston ◽  
A W Speedy

Almost all attempts to improve animal production systems in developing countries have failed because they relied on the transfer of technologies from developed countries. Livestock production systems in industrialized conuntries have high rates of animal productivity, which at the same time require high quality feeds, rich in energy and protein. Most developed countries are located in temperate climates in which cereals and high quality feeds and grains can be readily grown and have the currency to provide all the fossil fuel inputs required.In order for Third World countries, located mostly in tropical regions, to adapt these systems, they must import exotic livestock and provide the high level of feeding at high cost. The transferred system has led to a loss of interest in indigenous breeds and local resources.It is clear that there is a great need for new rural development strategies that should take into account not only food production but also renewable energy resources, employment generation, self reliance and protection of the enviroment. This strategy includes selection of crops and cropping systems which maximize biomass production, nitrogen fixation and minimize the use of imported or expensive inputs.


Author(s):  
Mareks Briška

Nowadays the right decision choice and acceptance in risk and uncertainty conditions is very complex, because the decision can be accepted not – analyzed thus causing even catastrophic consequences. For the company to operate successfully requires tested, high-quality and rational methods in the core business of the organization and the company, anticipating and neutralizing the risk and its impact on the competitiveness and viability of the company.


Proceedings ◽  
2020 ◽  
Vol 49 (1) ◽  
pp. 115
Author(s):  
Masashi Ohara ◽  
Naoki Kawasaki ◽  
Jun Nakahama ◽  
Yogo Takada ◽  
Hitoshi Watanabe

The appropriate selection of arrows in the sport of archery is important to the achievement of high-quality results. In this regard, a shooting machine that is compatible with the wide variety of available bows and arrows is necessary. However, bow strength and arrow length vary among different athletes. It is also important to develop a shooting machine that reproduces the movement of the right fingers that releases an arrow, and the forward jump of a bow after shooting an arrow. In this study, a shooting machine was developed that considered these factors. Its efficacy was examined in terms of its ability to determine the characteristics of each arrow, and to distinguish between normal and flawed arrows. Based on the experimental results, we identified the factors that affected the shooting accuracy of arrows. In addition, the developed shooting machine was able to distinguish between normal and flawed arrows.


2018 ◽  
Vol 5 (2) ◽  
pp. 201
Author(s):  
Asep Hermawan ◽  
Abdul Muid ◽  
Irma Nirmala

<p><em>Shoes have become a necessity and human lifestyle in keeping with the times. The main function of the shoe is to protect the foot from being injured due to environmental conditions. Shoe size is also a factor that influences the safety and comfort of activities so that the right size shoes are needed.For the sake of comfort in doing activities, shoes with the right size are needed to reduce injury. Some foot injuries can be caused due to incorrect selection of shoes so that they have a bad impact on the feet. To answer these problem, digital foot length measuring device will be made in this study using LDR sensor and diodesIn addition, this device can also recommend the right shoe sizes from various shoe brands available on the website page. To connect supporting software and hardware it will be managed by Arduino MEGA. Test results on 40 samples indicate that the system can recommend shoe sizes to users with a high level of suitability. Digital device test results obtained difference between 0cm - 1cm with a tolerance value of 1cm. On manual measurements of user's foot length and shoe size obtained a difference between 0,4cm – 1,5cm with a tolerance value of 1,5cm.</em></p><p><strong><em>Keywords</em></strong><em>: Shoe Size, LDR Sensor, Arduino MEGA, Website</em><strong> </strong></p><p><em>Sepatu </em><em>sudah</em><em> menjadi kebutuhan dan g</em><em>aya hidup </em><em>manusia dalam mengikuti perkembangan zaman. Fungsi utama s</em><em>epatu </em><em>adalah </em><em>melindungi kaki agar tidak cedera karena kondisi lingkungan</em><em>. Ukuran sepatu juga menjadi faktor yang mempengaruhi keamanan dan </em><em>kenyamanan dalam beraktivitas</em><em> sehingga </em><em> dibutuhkan sepatu dengan ukuran yang </em><em>tepat.</em><em> </em><em>Beberapa cedera kaki dapat disebabkan  karena salah dalam pemilihan ukuran sepatu sehingga berdampak buruk bagi kaki. Untuk m</em><em>enjawab permasalahan tersebut,</em><em> </em><em>dalam penelitian ini direalisasikan alat ukur panjang telapak kaki secara digital menggunakan sensor LDR dan Dioda. Selain itu alat ini juga dapat merekomendasikan ukuran sepatu yang tepat dari berbagai merek sepatu yang tersedia di halaman website. Untuk menghubungkan perangkat lunak dan perangkat keras pendukung maka akan diatur oleh Arduino MEGA. Hasil pengujian pada 40 sampel menunjukkan bahwa sistem dapat merekomendasikan ukuran sepatu kepada pengguna dengan tingkat kesesuaian yang tinggi. Pengujian alat digital diperoleh selisih antara 0cm – 1cm dengan nilai toleransi sebesar 1cm. Untuk pengukuran manual panjang kaki dan ukuran sepatu pengguna didapatkan selisih antara 0,4cm – 1,5cm dengan nilai toleransi sebesar 1,5cm.</em></p><p><strong><em>Kata kunci</em></strong><em> : Ukuran Sepatu, Sensor LDR, Arduino MEGA, Website</em></p>


2018 ◽  
Vol 178 ◽  
pp. 05009
Author(s):  
Elena Amaricai

In rehabilitation medicine there is increasing need of using high quality orthoses that can provide either good stability of the joint or good correction of the postural defect. The advantages of using orthoses that are in the same time hypoallergenic, lightweight, flexible, resistant and durable over time should be considered when prescribing them in clinical practice. This study presents different types of orthoses and the necessity of proper selection of materials when choosing the best ones. We included 34 patients diagnosed with different musculoskeletal conditions (thoracic and thoraco-lumbar scoliosis, genu valgum deviation and rheumatoid arthritis) that required the use of special orthoses (thoraco-lumbar braces, knee or hand orthoses). Patients were asked to complete a questionnaire regarding the quality of the orthoses that they have been used. The following characteristics of an orthosis should be considered when choosing the right one: easily wearable, comfortable, offering good stability of a joint, high quality, lightweight, hypoallergenic and resistant.


Author(s):  
Ni Made Diana Erfiani

This study aims at providing scientific arguments against the phenomena that appear in the Bible translation especially the extreme poles of literal and free translation versions. These two contradictory poles can be reconciled so that the literal products are not only accurate but also readable and vice versa the products of free translation version are not only readable but has a high level of accuracy. Data is in the form of terms taken from a famous biblical text of English – Indonesian translation entitled “The Sermon on the Mount” from two different versions namely literal and free translations. This study reveals that the reconciliation process of the two extreme poles can be done through the selection of proper translation procedure and by applying the chosen procedure correctly. Based on the finding, the meeting point of literal and free translation versions lies on the literal procedure, whereas the method of choosing correct procedure in literal translation can be done by way of starting from literal procedure to the left and from literal procedure to the right for the free translation version.


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