scholarly journals A review on the biological effects of nanomaterials on silkworm (Bombyx mori)

2021 ◽  
Vol 12 ◽  
pp. 190-202
Author(s):  
Sandra Senyo Fometu ◽  
Guohua Wu ◽  
Lin Ma ◽  
Joan Shine Davids
Keyword(s):  
Growth And Development ◽  
Animal Feed ◽  
Biological Effects ◽  
Experimental Models ◽  
High Quality ◽  
Silk Proteins ◽  
Therapeutic Properties ◽  
Silkworm Silk ◽  
Silkworm Bombyx Mori

The production of high-quality silkworm silk is of importance in sericulture in addition to the production of biomass, silk proteins, and animal feed. The distinctive properties of nanomaterials have the potential to improve the development of various sectors including medicine, cosmetics, and agriculture. The application of nanotechnology in sericulture not only improves the survival rate of the silkworm, promotes the growth and development of silkworm, but also improves the quality of silk fiber. Despite the positive contributions of nanomaterials, there are a few concerns regarding the safety of their application to the environment, in humans, and in experimental models. Some studies have shown that some nanomaterials exhibit toxicity to tissues and organs of the silkworm, while other nanomaterials exhibit therapeutic properties. This review summarizes some reports on the biological effects of nanomaterials on silkworm and how the application of nanomaterials improves sericulture.

scholarly journals Analysis of Phorbolester Content During Growth and Development of Jatropha curcas Fruits

KnE Energy ◽  
2015 ◽  
Vol 1 (1) ◽  
pp. 125
Author(s):  
Randi Abdur Rohman ◽  
Dwi Yono ◽  
Nurita Toruan-Mathius ◽  
Roy Hendroko
Keyword(s):  
Phosphoric Acid ◽  
Jatropha Curcas ◽  
Growth And Development ◽  
Mobile Phase ◽  
Animal Feed ◽  
Biological Effects ◽  
Tumor Promoters ◽  
Toxic Compounds ◽  
Ester Content ◽  
High Level

<p>Utilization of Jatropha curcas seed meal as animal feed is limited by the presence of toxic compounds. Phorbolester present in Jatropha curcas as a family of compounds known to cause a large number of biological effects such as tumor promoters. The aim of this research is measure phorbolester content during growth and development of Jatropha curcas fruit. Phorbolester extracted by sonification method and analysed by UPLC using phosphoric acid and acetonitrile as mobile phase. Jatropha curcas fruit has ripe in the fifth week because of yellowing of fruit capsule. Toxic genotypes of Jatropha curcas has higher phorobol ester content than non-toxic genotypes approximately 182.1 and 55.2 ng/g respectively. Fruit capsule (122.2 ng/g) has higher phorbolester content than fruit seed (115.2 ng/g). It is due to biosynthesis of diterpene that occur in plastid. Biosynthesis of phorbolester possibly occured in initiation and maturation of fruit because the high level of phorbolester occur in the first and fifth week.</p><p><strong>Keywords:</strong> Jatropha curcas, toxic genotypes, non-toxic genotypes, fruit seed, fruit capsule</p>

scholarly journals Carbonate filler resources of the Bjelopavlici area, Montenegro

2016 ◽  
Vol 70 (5) ◽  
pp. 493-500
Author(s):  
Darko Bozovic ◽  
Vladimir Simic ◽  
Dragan Radulovic ◽  
Filip Abramovic ◽  
Slobodan Radusinovic
Keyword(s):  
Animal Feed ◽  
Industrial Applications ◽  
Technological Properties ◽  
High Quality ◽  
Feed Industry ◽  
Mineral Commodity ◽  
Carbonate Filler

Carbonate filler is an important mineral commodity, with rather diverse industrial applications. The Bjelopavlici area in Montenegro is rich in chemically pure limestone, which was preliminary explored in the field, and further on mineralogical, petrographic, geochemical and technological properties were studied. The obtained results have proven the high quality of limestone from the studied deposits, as it can be used for paints&varnishes, rubber&plastics, metallurgy, foundry, sugar, fertilizers and animal feed industry. Several deposits have very pure limestone, that can be also used for paper, glass, pharmacy and soil neutralisation. The potential resources of high quality limestone are around 23 million tons.

scholarly journals Productivity of Ostriches Fed with Felucen P-2 Feed Supplement

2021 ◽  
Author(s):  
Yulia O. Korotkikh ◽  
Mikhail S. Krivko
Keyword(s):  
Growth And Development ◽  
Meat Products ◽  
Live Weight ◽  
Blood Parameters ◽  
Ash Content ◽  
Feed Supplement ◽  
High Quality ◽  
Black African ◽  
Biological Value

This article presents the results of a study that examined the effect of Felucen P-2 feed supplement on the growth and development, blood parameters and quality of meat of black African ostriches. The experiment was conducted on two groups of ostriches: the first group received the main diet and the second group received Felucen P-2 added to the main diet. It was found that Felucen P-2 was an effective feed supplement which increased the rate of growth and development of young ostriches. For example, at the age of 90 days, ostriches of the first group had a live weight of 19.15 kg, and of the second group - 20.35 kg; at the age of 120 days, the birds of the first group had a live weight of 29.10 kg and of the second group - 32.05 kg; at the age of 150 days, the birds of the first group had a live weight of 40.35 kg and of the second group - 44.95 kg. In addition, from the age of 120 days, the significant live weight gain was observed. During this period, average daily gains were 332-453 g. The insignificant superiority of ostriches of the second group over the first one by the biological value and meat quality was determined. The ash content in ostriches of the second group was 1.1%, and in the first group it was 0.9%; the moisture content was 75.3 and 77.1, respectively; the protein content was 20.9% and 19.1%, respectively; and the fat content was 2.7% and 2.9%, respectively. In general, meat products had high quality and dietary indicators. Keywords: ostriches, Felucen P-2, daily average gain, meat

REALIZATION OF POTENTIAL OF MEAT EFFICIENCY OF BULL-CALVES IMMUNOPREVENTION

2018 ◽  
Vol 1 (3) ◽  
pp. 65-69
Author(s):  
V. G. Tyurin ◽  
◽  
V. G. Semenov ◽  
V. A. Alekseev ◽  
D. A. Nikitin ◽  
...  
Keyword(s):  
Production Technology ◽  
Growth And Development ◽  
Evidence Based ◽  
High Quality ◽  
Humoral Factors ◽  
Biological Products ◽  
Bull Calves ◽  
First Time

For the first time on the basis of complex researches the zootechnical fea-sibility of application of the developed biological products Prevention-N-A and Prevention-N-E in the production technology of beef for realization of bioresource potential of meat qualities of bull-calves of black and motley breed is evidence-based and experimentally proved. Against the background of application of biological products activization of growth and development of bull-calves during the periods of cultivation, growing and sagination is established that has caused higher lethal and meat qualities of hulks and, as a result, an exit of valuable junctures. The high quality of meat hulks on organoleptic, biochemical and spectrometer indicators and, therefore, safety of examinees of preparation is proved. It is established what realization of bioresource potential of an organism of bull-calves has been caused by activization of a hematopoiesis, cellular and humoral factors of nonspecific stability biological products, at more expressed corresponding effect Prevention-N-A.

Influence of technology parameters of free-cutting steel continuous casting on the billet internal structure

2020 ◽  
Vol 76 (2) ◽  
pp. 139-142
Author(s):  
A. T. Kunakbaeva ◽  
A. M. Stolyarov ◽  
M. V. Potapova
Keyword(s):  
Regression Analysis ◽  
Continuous Casting ◽  
Internal Structure ◽  
Sulfur Content ◽  
Manganese Content ◽  
High Quality ◽  
Correlation And Regression Analysis ◽  
Cutting Steel ◽  
Continuously Cast

Free-cutting steel gains specific working properties thanks to the high content of sulfur and phosphorus. These elements, especially sulfur, have a rather high tendency to segregation. Therefore, segregation defects in free-cutting steel continuously cast billets can be significantly developed. The aim of the work was to study the influence of the chemical composition of freecutting steel and casting technological parameters on the quality of the macrostructure of continuously cast billets. A metallographic assessment of the internal structure of cast metal made of free-cutting steel and data processing by application of correlation and regression analysis were the research methods. The array of production data of 43 heats of free-cutting steel of grade A12 was studied. Steel casting on a five-strand radial type continuous casting machine was carried out by various methods of metal pouring from tundish into the molds. Metal of 19 heats was poured with an open stream, and 24 heats – by a closed stream through submerged nozzles with a vertical hole. High-quality billets had a cross-sectional size of 150×150 mm. The macrostructure of high-quality square billets made of free-cutting steel of A12 grade is characterized by the presence of central porosity, axial segregation and peripheral point contamination, the degree of development of which was in the range from 1.5 to 2.0 points, segregation cracks and strips – about 1.0 points. In the course of casting with an open stream, almost all of these defects are more developed comparing with the casting by a closed stream. As a result of correlation and regression analysis, linear dependences of the development degree of segregation cracks and strips both axial and angular on the sulfur content in steel and on the ratio of manganese content to sulfur content were established. The degree of these defects development increases with growing of sulfur content in steel of A12 grade. These defects had especially strong development when sulfur content in steel was of more than 0.10%. To improve the quality of cast metal, it is necessary to have the ratio of the manganese content to the sulfur content in the metal more than eight.

Pengaruh Kecepatan Putar Terhadap Hasil Coran pada Metode Pengecoran Sentrifugal dalam Pembuatan Produk Pisau Pakan Ternak dengan Material Ni-Hard1

2019 ◽  
Vol 11 (01) ◽  
pp. 1-7
Author(s):  
Roni Kusnowo ◽  
Kus Hanaldi
Keyword(s):  
Animal Feed ◽  
Centrifugal Casting ◽  
Impact Resistance ◽  
Literature Study ◽  
Gravity Casting ◽  
Friction Resistance ◽  
Optimal Speed ◽  
Mold Making

Animal feed knife is a tool that serves to cut and chop animal feed consisting of grass as the main ingredient with additives such as bran, herbs, centrate, cassava, tofu pulp and others. Therefore, as a cutting tool must have the properties of friction resistance, impact resistance, and have good sharpness, so that the material chosen is Ni-Hard 1. The use of centrifugal casting method was chosen because it has the advantage of being able to make castings with relatively thin thickness this is due to the influence of the centrifugal force on the distribution of metal liquids throughout the cavity in the mold. Case study in this study is the use of centrifugal casting methods as an alternative to gravity casting methods to overcome defects of misruns. This research was conducted to investigate the effect of speed on the formation of castings products. The method that was carried out began with a literature study on centrifugal casting, and continued by determining the material, the temperature of the cast is in the range 1250ºC - 1300ºC, and the type of mold. The next step is to do work drawings, pattern making, mold making, casting processes, fettling processes, and analysis. With variations in speed of 200 rpm, 300 rpm and 400 rpm, it can be seen the optimal speed for making this product. The results of this study obtained optimal speed at a speed of 300 rpm to make good quality of animal feed knife products.

Experience of clinical testing of personal telemedicine system ‘Obereg’ for remote monitoring of patients in intensive care units

2020 ◽  
pp. 52-58 ◽  
Author(s):  
A. A. Eryomenko ◽  
N. V. Rostunova ◽  
S. A. Budagyan ◽  
V. V. Stets
Keyword(s):  
Intensive Care ◽  
Intensive Care Units ◽  
Remote Monitoring ◽  
Clinical Testing ◽  
Transportation Of Patients ◽  
High Quality ◽  
Telemedicine System ◽  
Accuracy Of Measurements ◽  
Hospital Equipment

The experience of clinical testing of the personal telemedicine system ‘Obereg’ for remote monitoring of patients at the intensive care units of leading Russian clinics is described. The high quality of communication with the remote receiving devices of doctors, the accuracy of measurements, resistance to interference from various hospital equipment and the absence of its own impact on such equipment were confirmed. There are significant advantages compared to stationary patient monitors, in particular, for intra and out-of-hospital transportation of patients.

METHODOLOGICAL ASPECTS OF VISUALIZATION OF CORONARY ARTERIES WITH TRANSTHORACIC ECHOCARDIOGRAPHY

2018 ◽  
pp. 26-35
Author(s):  
Z. A. Agaeva ◽  
K. B. Baghdasaryan
Keyword(s):  
Blood Flow ◽  
Coronary Blood Flow ◽  
Coronary Arteries ◽  
Transthoracic Echocardiography ◽  
Second Harmonic ◽  
Anatomic Reconstruction ◽  
High Quality ◽  
Acoustic Window ◽  
Methodological Aspects

The transthoracic echocardiography made by multifrequency probes with support of the mode of the second harmonic imaging, is a competitive method for visualization of the main coronary arteries and allows to estimate coronary blood flow with high quality. Of course, the method has considerable restrictions, most important of which is the low spatial resolution of a method, due to small acoustic window. Because of this the transthoracic visualization of coronary arteries perhaps will not become the leading method of anatomic reconstruction of separately taken coronary artery and especially all coronary arteries system. However uniqueness and indisputable advantage of this method is an opportunity to noninvasively estimate a coronary blood flow both once, and in dynamics.

Estimates on poverty in Russia and the additional measures to reduce it at the regional level

2020 ◽  
Vol 18 (4) ◽  
pp. 739-752 ◽  
Author(s):  
R.M. Sadykov
Keyword(s):  
Poverty Rate ◽  
Regional Level ◽  
Living Standards ◽  
Standard Of Living ◽  
High Quality ◽  
Social Standard ◽  
Republic Of Bashkortostan ◽  
The Republic ◽  
Sociological Studies

Subject. This article deals with the issues of social justice and a high quality of life, creating favorable economic and social conditions. Objectives. The article aims to assess the rate and changes in poverty in Russia and the Republic of Bashkortostan and develop complementary measures to reduce it. Methods. For the study, I used the methods of logical, comparative, economic and statistical analyses, the results of sociological studies, and official statistics. Results. The article highlights additional measures to reduce poverty in the region, including the establishment of a minimum social standard of living in each particular region that determines the poverty rate. Conclusions. Various factors, such as economic sanctions, economic slowdowns, territorial and regional imbalances, lead to living standards decline and poverty rise.

SCIENTIFIC BASIS OF POSTGRADUATE TRAINING FOR OFFICER WORKING ETHNIC AFFAIRS USING STATE BUDGET IN THE PERIOD OF 2018 – 2025

2017 ◽  
Author(s):  
La Duc Minh ◽  
Nguyen Thi Hao ◽  
Vu Thi Thuy
Keyword(s):  
Economic Development ◽  
Ethnic Groups ◽  
Human Resource ◽  
Postgraduate Training ◽  
Scientific Basis ◽  
National Defense ◽  
High Quality ◽  
State Budget ◽  
International Integration

Ethnic affairs play an important role in socio of ethnic groups’ solidarity, assurance of security and national defense stability. In -economic development, maintenanceorder to improve the quality of ethnic affairs, it is practical to carry out postgraduate training of officer implementing ethnic affairs using state budget with the aim of encouraging and enhancing officer quality to satisfy high-quality human resource in international integration.

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