bluuebunny/crossref_metadata_2025 huggingface dataset:
POSSIBILITIES OF APPLICATION THE EFFLUENT OF BIOGAS UNIT
Authors:   Energy institute and advanced technologies-a business division of the Federal research center “ Kazan scientific center of the Russian Academy of Sciences», Karaeva Y. V. , Timofeeva S. S. ,   Energy institute and advanced technologies-a business division of the Federal research center “ Kazan scientific center of the Russian Academy of Sciences», Gilfanov М. F. ,   FSBEI HE Kazan national research technological University
Published: November 2020

As the result of the biogas plant work , a lot of sludge (effluent) is formed, which can be used for various purposes. This article shows the possibility of appliance solids of effluent as an organic fertilizer, as well as fuel for generating thermal energy. The studied effluent was obtained after anaerobic fermentation of cow dung and biomass of the plant Amaranthus retroflexus L. In addition, mixtures of effluent with residues of plant biomass were examined . They are a mixture of seeds, stems and leaves in a ratio of 1:1,1:1,6. Five samples were examined: 100% effluent; 75% effluent and 25% biomass; 50% effluent and 50% biomass; 25% effluent and 75% biomass; 100% plant biomass. The content of nutrients (total nitrogen, phosphorus, potassium) in the samples significantly exceeds the indicators recommended by GOST 33380-2015. It was established that studied samples have high concentrations of copper and zinc. The studied effluent can not be used in its pure form as a fertilizer, but it is advisable to mix it with other components characterized by a “poor” mineral composition, such as peat. For the production of soil additives, the weight ratio of dry raw materials of effluent to lowland peat is 1:5. The lowest heat value of effluent in a mixture with plant biomass was from 12.4 MJ/kg to 14.1 MJ/kg. For heat value, it is most effective to use pure effluent and composite fuel consisting of 75% effluent and 25% biomass of the plant Amaranthus retroflexus L. The high ash content of the studied samples is due to the increased content of Cao and SiO2 oxides.
INFLUENCE OF DOSES AND TERMS OF APPLICATION OF MINERAL FERTILIZERS ON THE FORMATION OF WINTER WHEAT YIELD
Authors:   Ulyanovsk ARI – branch of SamRC RAS, Khakimov R.А. , Nikiforova S.А ,   Ulyanovsk ARI – branch of SamRC RAS, Khakimova N.V. ,   Ulyanovsk ARI – branch of SamRC RAS
Published: November 2020

In 2016-2019, research was conducted on the experimental field of the Ulyanovsk research Institute for the purpose of determining the effectiveness of starting doses of mineral fertilizers, as well as nitrogen fertilizing on the productivity and quality of winter wheat grain Marathon. Studies have established the optimal lead time of nitrogen fertilization and doses of mineral fertilizers. Weather conditions over the years of research were contrasting, which allowed us to assess the responsiveness of winter wheat to mineral fertilizers in conditions of different moisture availability. The most effective options were those with nitrogen fertilization at a dose of 34 kg/ha in the spring period on frozen soil, which allowed to obtain an additional 0.51 t/ha and, conversely, the lowest-in the autumn period (+0.16 t / ha). The maximum yield of winter wheat (3.72 t / ha) is formed during the seeding with the simultaneous introduction of 45.5 kg/ha of complex fertilizers in the rows against fractional application of ammonium nitrate in spring during tillering and booting of plants in the amount of 34 kg/ha and top dressing in the phase of earning with urea at a dose of 15 kg/ha. Correlation analysis showed a positive close relationship between the elements of the structure of the winter wheat crop depending on different doses and methods of applying mineral fertilizers and nitrogen fertilizers (r=0.82-0.96). The highest content of protein (on average 14.1%) and gluten (33.0%) was provided on the control background without use of ordinary fertilizers. The use of complex fertilizers during seeding resulted in a slight decrease of amount of protein (by 14%) and gluten (up to 32.4-32.9%). Nitrogen fertilizer had a greater impact on these indicators.
ACTIVITY LINK OF NUCLEOLAR ORGANAIZERS WITH PROLIFERATION LEVEL AND PROTEIN BIOSYNTHESIS (SURVEY)
Authors:   FSBSI FRC VIZh named after academy L.К. Ernst, Novgorodova I.P. , Klenovitsky P.М. ,   FSBSI FRC VIZh named after academy L.К. Ernst, Iolchiev B.S. ,   FSBSI FRC VIZh named after academy L.К. Ernst
Published: November 2020

Study of individual cell morphemes in animals has fundamental and applied meaning. The principle issue of modern biology is mechanistic study of functioning and cooperation of nucleus cell structures. Real interest is in- depth study of nucleus cell structure, connected with proliferative and synthetic cell activity in animals. Parts of chromosomes contain specialized structures- so called nucleolar organizers (NOR). Number of these subunits polymorphous and depends on complex of factors. Principle facto , influencing the number of NOR, is a specific accessory and individual features of the body. In NOR zone genes of 2 classes of rRNA: 18S and 28S, which are in ribosomes, taking part in their functioning. NOR perform functions in cells, take part in protein secretion. The aim of this survey is the analysis of NOR polymorphism in domestic and farm animals and identifying economic traits with polymorphism and NOR structure. According to NOR we can implicitly estimate activity of synthesis of ribosomal RNA and distinguish cell- doubling capacity and state of cell differentiation. Metaphase NOR are used as indicator of physiological and productive body state. Cytogenic assays, aimed to study intraspecific animal variety, are carried out on the basis of localization in NOR cells.
ANALYSIS OF THE CUTTING MACHINE OPERATION FOR FREE-STANDING CUTTING OF STEMS INDUSTRIAL HEMP
Authors:   FSBEI Federal scientific center of fiber crops, Popov R.А. , Perov G.А. ,   FSBEI Federal scientific center of fiber crops
Published: November 2020

Harvesting of technical hemp is the most important technological process during its cultivation. For harvesting hemp, various designs of cutting machines are used, adapted to perform operations taking into account the characteristic features of the stems, their structure and physical and mechanical properties. The cutting machines used on Soviet-made hemp harvesting equipment have their own characteristic disadvantages. To eliminate these disadvantages, it is necessary to further improve the design of cutting machines, reduce energy consumption on the cutting process, and find new technical solutions that increase productivity and increase the longevity of working bodies. The article examines the kinematics of the rotary cutting device in relation to the cutting of technical hemp stems. The path of the cutting segments is determined, and analytical dependences are obtained. The main parameters of the rotary cutting unit are determined by calculation: rotor radius - 0,57 m, the height of the cutting segments - 0,01…0,015 m, step - 0,04 m, number of segments on the disk – 90 units, angle of adjacent segments - 4 degrees. The graphical dependence of rotor diameter of the cutting machine on the unit width for different numbers of rotors is obtained (from 2 to 8 units). According to the calculated parameters, the layout of the cutting machine with a total working width is presented 4,5 m.
BIOPROFILE OF MICROORGANISMS ISOLATED FROM URINE OF CATS WITH DISEASES OF URINARY SYSTEM
Authors:   FSBEI HE OSAU, Morozova N. V. , Sycheva М. V. ,   FSBEI HE OSAU, Sorokin V. I. ,   FSBEI HE OSAU
Published: November 2020

The research aim: to study the bioprophiles of microorganisms isolated from the urine of cats in the pathology of the urinary system (cystitis and urolithiasis). 46 strains of different types of bacteria were isolated from the urine of 34 sick animals by bacteriological method and identified using the biochemical test systems “Lachema” (“Erba Lachema s.r.o.”, European Union). The photometric method was used to determine the anti-lysozyme and anti-hemoglobin activity, the adhesion index, and the ability to form biofilms in isolates. It was established that microorganisms isolated from urolithiasis in cats were more often isolated in associations than microorganisms isolated from cystitis, among which monocultures prevailed. Biological properties of isolated microorganisms were studied, bioprofile were identified characterizing the strains. It is shown that cultures of S. aureus, E. coli, S. epidermidis from urine with urolithiasis was significantly higher values antigemoglobin activity; in E. coli – antilysozyme activity, in S. aureus – increased adhesion, in S. epidermidis – the ability to form biofilms than in urine strains with cystitis. P. aeruginosa strains isolated from urine with cystitis were characterized by a high level of adhesion compared to cultures of this species isolated from urine with urolithiasis. The results obtained can be used for differentiation of strains that can cause studied pathologies, as well as for selection of adequate therapy under the control of studied biological properties of microorganisms.
DEVELOPMENT OF PHAGOINDICATION METHOD FOR PSEUDOMONAS SYRINGAE BACTERIA IN SANITARY CONTROL OBJECTS
Authors:   FSBEI HE Ulyanovsk SAU, Feoktistova N.А. , Bekkalieva А.К. ,   FSBEI HE Ulyanovsk SAU, Vasilyev D.А. ,   FSBEI HE Ulyanovsk SAU, Suldina Е.V. ,   FSBEI HE Ulyanovsk SAU
Published: November 2020

The article presents the results of research on the development of parameters for practical application of phage biopreparation Pseudomonas syringae in order to indicate the data of phytopathogenic bacteria in sanitary control objects. The introduction of the article describes pathogens of Pseudomonas syringae and plants that they affect, which proves research actuality aimed at developing speed-up methods of indication and identification of bacteria-pathogens, which will allow specialists to develop measures to combat above-mentioned phytopathogens in a short time. It was established that cultivation of the "bacteriophage-test material" system at a temperature of 28 ± 1 0C during 3.5 hours allows detecting Pseudomonas syringae bacteria in soil samples, river water, and cucumber seeds by the RSF method at a concentration of 103 MK/ml., increase in the exposure time does not improve the quality of the reaction. The bacteriophages Ps. s-7 UlGAU and Ps. s-27 UlGAU in monoculture were used in experiments at a concentration of 103 BFU/ml. When testing a polyphage biological product in RSF, including all the above-mentioned bacteriophages, it was found that the results obtained in the studies of the river water sample were similar to the experimental data on cucumber seed sample. Concentration of detected Pseudomonas syringae bacteria was 103 m.k./ml. It was experimentally established that reducing the initial titer of polyphage biopreparation to a concentration of 102 BFU / ml allowed for the indication of Pseudomonas syringae bacteria in a soil sample at a concentration of 103 mk/g.
RESEARCH OF WEAR RESISTANCE OF IRON GEAR WHEELS WITH DIFFUSE CARBIDE LAYER
Authors:   FSBEI HE South-Ural SAU, Veselovsky А. А.
Published: November 2020

The article is concerned with wear resistance increase of saw-tooth enclosed drives applying instead of iron gear wheels, made from cement steel quality, gear wheels from high-duty cast iron of HF 60 with thermodiffusion carbide layer. Elements- diffusants were chosen according to level of carbide forming and hardness of formed layersvanadium- for forming very hard, chrome-medium according to coating and manganese- for low layers according to coating hardness. Layers are formed on spur gears, which are reverse gear of light vehicle. Setting for research included draw gear- asynchronous electric drive, placed on lathe-bed with the help of which rotation of gear shift transmission with powered reverse gear was done. Transmission output shaft was pressed into chunk. Kinematick of disconnected machine provided necessary moment resistance. Through given number of cycles the box was taken down, gear set was removed and metal graphic research was carried out. Residual layer thickness and linear wear were diagnosed, on the basis of obtained experimental data we built characteristic curves of linear wear from number of stress cycles. For comparative evaluation in this type of research we carried out experiments on measurement of linear wear of case – hardening steel 20 ChGn after cementation and further quenching and research of hardened cast iron HF mark 60. It was found out that the highest quality wearing in this type of research vanadium layers have, slightly lower quality wear chromium plate have and on the 3rd place manganese layers. The worst quality wear we observed in steel 20 ChGN. On the basis of obtained –experimental data empirical regularities of wear rate of layers from their Brinnel hardness and diameter of obtained copy were determined.
BIOCHEMICAL COMPOSITION OF SEEDS OF EARLY-MATURING SOYBEAN VARIETIES AND ITS VARIABILITY DEPENDING ON THE VARIETAL CHARACTERISTICS AND METEOROLOGICAL CONDITIONS OF VEGETATION PERIOD
Authors:   FSBSI Federal agroengineering research centre VIM, Belyshkina М.Е.
Published: November 2020

Soy is one of the most valuable agricultural crops, the protein composition of which includes essential amino acids, similar in composition to animal proteins, and fat in its composition predominates sunflower and olive. Comparative study of biochemical composition of soybean seeds of the Northern ecotype depending on varietal characteristics and meteorological conditions of the growing season. Perennial field experiments (2002-2019) were carried out on the experimental field of the plant growing laboratory of RSAU–MSHA named after K. A. Timiryazev. The objects of study were soybean varieties of the Northern ecotype – Svitlaya, Mageva, and Okskaya. Biochemical analysis of seeds was performed in the laboratory of research of technological properties of agricultural materials FSBSI FSAC VIM. The seeds of Northern ecotype soybean varieties contain 40.6-41.2 % protein and 19.4-19.9 % fat. Protein is characterized by a high content of sum of essential amino acids (63.10-63.98 %), including – histidine (7.2–7.7 %), lysine (7.7–7.8 %), tryptophan (by 4.6–4.9 %), arginine (8.4–8.8%), threonine (more than 4.0 %), phenylalanine (to 3.5 %). It was established that in comparison with traditional (southern) varieties, the seed fat of soybean varieties of the Northern ecotype is characterized by a higher content of palmitic acid (11.0–11.3 %) and significantly lower content of oleic acid (10.0–12.0 %). At the same time, according to the content and ratio of polyunsaturated fatty acids (linoleic and linolenic), it is close to the fat of food grades. Under conditions of excessive moisture, a high content of saturated palmitic fatty acid was observed, and in arid conditions – unsaturated fatty acids – oleic, linoleic and linolenic. Analysis of the quantitative and qualitative components of protein and fat of soybean varieties of Northern ecotype gives grounds to recommend their use not only for feed, technical, but also for food purposes.
SILICEOUS ROCKS IN WINTER WHEAT FERTILIZER SYSTEM
Authors:   FSBEI HE Ulyanovsk SAU, Kulikova А. Kh. , Yashin Е. А. ,   FSBEI HE Ulyanovsk SAU, Volkova Е.S. ,   FSBEI HE Ulyanovsk SAU
Published: November 2020

The research was carried out on the experimental field of Ulyanovsk SAU named after P. A. Stolypin on a typical medium-loamy Chernozem with a humus content of 4.6 %, available phosphorus and potassium of 155 and 176 mg / kg, рНKCl 6,7 units. In the experiments winter wheat of Saratovskaya variety 17 was grown using zeolite from the Yushansky deposit in the Ulyanovsk region as a fertilizer and fertilizers based on it enriched with amino acids and urea. The scheme of experiment consisted of 4 variants: 1. Control (without fertilizers); 2.Pure zeolite 500 kg / ha; 3. Zeolite enriched with amino acids, 500 kg / ha; 4. Zeolite enriched with urea (at the rate of 40 kg a. r. per ha), 500 kg / ha. The accounting plot area is 20 m2, their placement is randomized, repetition is 4 times. The results of research have shown a positive effect of zeolite and fertilizers based on it on the activity of soil microorganisms, the nutritional regime of the soil, yield and product quality. It was found that when applying to the soil, the activity of soil microflora increases by 9-18 %, the content of mineral forms of nitrogen in the arable layer increases by 0.82-2.17 mg/kg, mobile phosphorus by 5-8 mg/kg, and exchange potassium by 5-6 mg/kg of soil. The latter was accompanied by an increase in yield of winter wheat grain: when applying zeolite in pure form by an average of 0.46 t/ha (12.1 %), zeolite enriched with amino acids by 1.17 t/ha (30 %), and zeolite enriched with urea by 1.35 t/ha (35 %).
Evaluation of Platelet Parameters in Patients With Coronary Artery Disease
Authors: Mehrpouri1 Mahdieh , Ahmad Pour Afshin , Shahabi Satlsar Esmail
Published: November 2020

Coronary artery disease (CAD) is one of the leading causes of death worldwide; therefore, identifying new risk factors to predict the severity of the disease is thought to be associated with mortality reduction. In an effort to investigate whether platelet parameters are related to the extent of CAD and can be considered as risk factors, we designed experiments to evaluate platelet parameters in these patients. In a cross‐sectional study, sixty-nine patients with CAD (including fifty-two patients with acute coronary syndrome and seventeen patients with stable angina) and sixty-four healthy volunteers were evaluated for platelet count, mean platelet volume (MPV), and platelet distribution width (PDW). Echocardiography, electrocardiogram (ECG), and coronary angiography were conducted as well. Results showed significantly higher values for MPV and PDW in patients with acute coronary syndrome as compared to patients with stable angina and healthy volunteers (P<0.001 and P=0.009, respectively). There was no significant difference in platelet count between patients and healthy volunteers (P=0.379). Our results also revealed a significant difference in the ejection fraction (EF) percentage between the three groups (P=0.008). Investigating the correlation between platelet parameters and EF percentage, ECG changes, and the results of coronary angiography did not show any significant association. The present study showed that the elevated levels of MPV and PDW in patients with CAD are not related to the extent of coronary artery disease, which was estimated by echocardiography, ECG changes, and coronary angiography. Thus, these parameters cannot be considered as risk factors for coronary artery disease.
Cytomorphometric Analysis of Buccal Exfoliated Cells in Patients With Iron Deficiency Anemia
Authors: Rajabi-Moghaddam Mahdieh , Abbaszadeh Hamid , Mosaffa Maryam , Gholinia Hemmat , Nafarzadeh Shima
Published: November 2020

Iron deficiency anemia can cause histopathologic alterations in the oral mucosa. Exfoliative cytology is a cheaper and less aggressive method for early diagnosis. The aim of this study was to compare the cytological and cytomorphometric characteristics of buccal exfoliated cells of iron deficiency anemic patients with those of healthy controls. This case-control study compared a group of 40 patients with iron deficiency anemia (IDA) with an age- and gender-matched control group (C) of 40 healthy individuals. The buccal mucosal smears were stained using the Papanicolaou technique for cytological analyses. Cellular clumping, cytoplasmic diameter (CD), nuclear diameter (ND), cytoplasmic area (CA), nuclear area (NA), nucleus to cytoplasmic area ratio (NA/CA), cellular and nuclear pleomorphism, micronuclei (Mn), binucleation, bacterial colonies, and keratin flakes were evaluated using a light microscope and digital image analysis. Mean values for IDA and C groups were: bacterial colonies (1.88 and 0.65; P=0.002); CA (2209.88 and 1687.79 μm²; P=0.006); Mn (1.60 and 0.60; P=0.02). Significant increases in bacterial colonies, CA and Mn were seen for the IDA group. The number of cellular clumps, CD, ND, NA, NA/CA, cellular and nuclear pleomorphism, binucleation, and the number of keratin flakes didn’t show significant differences between studied groups (P>0.05). There wasn’t any significant difference with respect to overall atypia. This study revealed that IDA was able to induce significant changes in CA and Mn of the oral epithelial cells. Exfoliative cytology and cytomorphometry can be used as a tool to assess the mucosal changes in IDA patients.
A Brief About RNA Viruses Conjunctivitis in the Current COVID-19 Pandemic
Authors: Es'haghi Acieh
Published: November 2020

The article's abstract is not available.
Characteristics of the human endometrial regeneration cells as a potential source for future stem cell-based therapies: A lab resources study
Authors: Akyash Fatemeh , Javidpou Mahdieh , Farashahi Yazd Ehsan , Golzadeh Jalal , Hajizadeh-Tafti Fatemeh , Aflatoonian Reza , Aflatoonian Behrouz
Published: November 2020

Background: Human endometrium with consecutive regeneration capability undergoes monthly hormonal changes for probable implantation, which confirms the presence of the cells in the basalis layer known as stem cell.
Objective: Previously, we reported the isolation and culture of the mesenchymal-like cells from human endometrium. In this study, we evaluated the biological and stemness characteristics of these cells.
Materials and Methods: The characterization of Yazd human endometrialderived mesenchymal stem/stromal cells (YhEnMSCs) was assessed using immunofluorescence (IF) staining for CD105, VIMENTIN, and FIBRONECTIN as markers and RT-PCR for CD166, CD10, CD105, VIMENTIN, FIBRONECTIN, MHCI, CD14, and MHCII genes. Flow cytometry (FACS) was performed for CD44, CD73, CD90, and CD105 markers. Moreover, the differentiation capacity of the YhEnMSCs to the osteoblast and adipocytes was confirmed by Alizarin Red and Oil Red staining.
Results: YhEnMSCs expressed CD105, VIMENTIN, FIBRONECTIN, CD44, CD73, and CD90 markers and CD166, CD10, CD105, VIMENTIN, FIBRONECTIN, and MHCI, but, did not express CD14, MHCII.
Conclusion: Our data confirm previous reports by other groups indicating the application of endometrial cells as an available source of MSCs with self-renewal and differentiation capacity. Accordingly, YhEnMSCs can be used as a suitable source for cell-based therapies.
Key words: Cell-based therapy, Endometrium, Mesenchymal stem/stromal cells, Regenerative medicine, Stem cells, Uterus.
Outcome of mock embryo transfer before the first IVF cycle: A randomized control trial
Authors: Borkar Amol , Shah Amit , Gudi Anil , Homburg Roy
Published: November 2020

Background: There is a lack of agreement among fertility specialists with regard to the routine use of mock embryo transfer (MET) before each in vitro fertilization (IVF) treatment cycle. While MET may be beneficial with previous difficult embryo transfer cases, its routine use before first IVF cycle has not been evaluated.
Objective: To find out the effect of MET before the first IVF cycle on clinical pregnancy rate.
Materials and Methods: This is a single-centre randomized controlled trial with a balanced randomization (1:1), carried out between November 2015 and October 2017, with 200 subjects at Homerton university hospital, London, randomized into either MET or control. The primary outcome was clinical pregnancy rate (detection of heart activity on the ultrasound scan), the secondary outcome measures were live birth rate, miscarriage and multiple pregnancy rates, difficult ETs, rate of blood or mucus on the catheter tip.
Results: No significant differences were observed in the baseline or cycle characteristics between the two groups. The clinical pregnancy rate was similar between the MET and control groups based on both intension to treat and per protocol analyses (p = 0.98, p = 0.92, respectively). Additionally, no significant difference was seen in the live birth rate in both groups on intension to treat and per protocol analyses (p = 0.67, p = 0.47), respectively.
Conclusion: Our study concludes that MET prior to first IVF cycle may not improve the success rate in young women without risk factors for a difficult embryo transfer.
Key words: IVF, Mock embryo transfer, Pregnancy outcomes, Live birth.
Is there any correlation between Estradiol supplementation, as luteal phase support, and clinical pregnancy in ART cycles? A cross-sectional study
Authors: Eftekhar Maryam , Mohammadi Banafsheh , Mangoli Esmat , Mortazavi Maryam
Published: November 2020

Background: Endometrial receptivity is one of the important factors in assisted reproductive technology (ART) success. In the luteal phase of an ART cycle, serum estradiol (E2) and progesterone are often placed in low levels. Supporting the luteal phase with progesterone is a usual method.
Objective: To evaluate the effects of E2 supplementation plus progesterone on the luteal phase support in the antagonist protocol who have undergone intracytoplasmic sperm injection-embryo transfer cycles.
Materials and Methods: In this cross-sectional study, 200 patients with antagonist stimulation protocol, who had undergone intracytoplasmic sperm injection treatment, were divided into two groups based on the use of E2 supplementation. In both groups, 400 mg progesterone suppositories (Cyclogest®), twice a day/vaginally, was administered starting from the day of oocyte collection until the fetal heart activity. However, in the E2 group, in addition to progesterone, 4 mg tablet of E2 was received daily. Beta hCG was checked 14 days after the embryo transfer, and the clinical pregnancy rate was the main endpoint.
Results: The patients’ characteristics were matched, and insignificant differences were observed, except for endometrial thickness. The clinical outcomes showed the rate of pregnancy was higher in the E2 group compared to the control group; nonetheless, statistically, there was no noticeable difference.
Conclusion: E2 supplementation had no beneficial effect in the luteal phase support of IVF cycles. Nevertheless, more studies are required to confirm the supportive role of E2 supplementation for embryo implantation and to improve the outcomes in ART cycles.
Key words: Luteal phase, Estradiol, Progesterone, ICSI, Pregnancy rate.
The effect of seasonality on reproductive outcome of patients undergoing intracytoplasmic sperm injection: A descriptive cross-sectional study
Authors: Mehrafza Marzieh , Asgharnia Maryam , Raoufi Azadeh , Hosseinzadeh Elmira , Samadnia Sajedeh , Atrkar Roushan Zahra
Published: November 2020

Background: There is conflicting evidence regarding the impact of season on the assisted reproductive technology outcome.
Objective: To retrospectively compare three year outcome of women undergoing their first intracytoplasmic sperm injection cycle, across seasons.
Materials and Methods: In this descriptive cross-sectional study, 3,670 women who underwent their first intracytoplasmic sperm injection cycle in Mehr Medical Institute, Rasht, Iran between April 2010 and May 2014 were studied. Women were divided into four groups according to the day of oocyte retrival as: spring (n = 808), summer (n = 994), autumn (n = 1066), and winter (n = 802). Basal and stimulation charecteristics were compared among groups.
Results: While sperm concentration and motility were significantly lower during summer, the total number of retrieved and metaphase II oocytes were significantly higher (p = 0.0001, p = 0.0001, p = 0.004, p = 0.02, respectively). Fertilization rate were significantly higher during autumn (p = 0.0001). Also, the number of high- quality transferred embryos were significantly higher during summer and winter (p = 0.03). A similar pattern was observed in implantation rate and pregnancy over the four seasons
Conclusion: Despite the fact that intracytoplasmic sperm injection minimize the seasonal effect on pregnancy outcome, changes in pregnancy rate still occur among different seasons without particular pattern. It seems that performing assisted reproductive technology procedures in a particular season should be considered as an effective factor.
Key words: Intracytoplasmic sperm injection, Seasons, Pregnancy outcome.
MARDS Workshop Proceedings
Authors: Debevc Matjaž
Published: November 2020

The collection contains contributions by authors who were presented at a workshop within the Erasmus + project MARDS in Maribor, at the University of Maribor.
Changing Doctoral Education at the University of Maribor
Authors: Ren Zoran , Vaupotič Nataš
Published: November 2020

The paper gives an overview of changes in the European Higher Education Area regarding the Doctoral studies, and outlines the steps that the University of Maribor undertook to renovate the Doctoral studies in line with the Salzburg principles and Principles of Innovative Doctoral Education.
O informacionalismo como uma ameaça ao direito humano à saúde em tempos de pandemia: as aporias da Covid-19 e os desafios da comunicação humana
Authors: Borges Gustavo Silveira , Cervi Taciana Damo , Piaia Thami Covatti
Published: November 2020

La raison général d'être do presente trabalho, a título de problematização, consiste em analisar se o estágio atual do paradigma tecnológico, informacionalista, poderia ser uma ameaça ao direito humano à saúde, tamanha sua influência na transformação das comunicações humanas, atuando de forma estratégica no atual momento pelo qual passa a humanidade: pandemia da COVID-19. Para tanto, objetiva-se pôr em discussão, temas como informacionalismo, informações falsas e tendenciosas, direitos humanos e direito humano à saúde. Este estudo justifica-se, pois é premente o alargamento do debate acerca do enfrentamento à pandemia da COVID-19 e dos instrumentos utilizáveis a esse fim, aparelhando-se Estado, sociedade e as empresas de tecnologia, de elementos hígidos à boa governança. Adotou-se o método hipotético-dedutivo, com abordagem analítica e delineamento a partir da averiguação bibliográfica.

Palavras-chaves: Informacionalismo. Pandemia da Covid-19. Direitos Humanos. Direito Humano à Saúde.
ГИДРОДИНАМИКА ПРИ БУРЕНИИ ИМПРЕГНИРОВАННЫМ ПОРОДОРАЗРУШАЮЩИМ ИНСТРУМЕНТОМ С ЭКСЦЕНТРИСИТЕТОМ РЕЖУЩЕЙ ЧАСТИ ТОРЦА МАТРИЦЫ
Authors: Нескоромных Вячеслав Васильевич , Петенев Павел Геннадьевич , Попова Марина Сергеевна , Комаровский Игорь Андреевич , Головченко Антон Евгеньевич , Лиу Баочанг
Published: November 2020

Актуальность. К проектированию современного породоразрушающего инструмента выдвигаются высокие требования. Востребованным является буровой инструмент, за счет конструкции которого решается большая часть задач бурения: соблюдение запроектированной траектории ствола скважины, высокие скорость проходки и ресурс, эффективное разрушение горной породы, качество отбора керна и так далее. Зачастую, решая путем изменения конструктивных элементов инструмента одну проблему, разработчики не учитывают другую, которая может оказаться не менее значимой. Так, разработка импрегнированной коронки с эксцентриситетом режущей части торца матрицы позволила значительно уменьшить интенсивность естественного искривления, которое особо актуально при бурении в анизотропных горных породах. Однако изменение конструкции коронки повлекло за собой снижение ресурса инструмента. На необходимость комплексного, системного подхода к исследованию механизма работы бурового инструмента авторами указывалось неоднократно. В связи с этим, учитывая преимущество полученной конструкции в области стабилизации направления ствола скважины, актуальным является исследование причин скорого износа таких коронок. Основной причиной износа алмазного инструмента является перегрев и зашламование режущей части, поэтому при конструировании любого алмазного породоразрушающего инструмента необходимо дополнительно исследовать гидродинамические процессы, протекающие при его работе на забое скважины. Цель: определение особенностей течения жидкости в пределах импрегнированного породоразрушающего инструмента, выделение основных причин износа матрицы, связанных с гидродинамикой на забое, а также конструктивные решения намеченных проблем. Объекты: процесс гидродинамики бурения импрегнированным породоразрушающим инструментом. Методы: компьютерное моделирование, аналитические исследования, анализ. Результаты. Изменение конструкции торца матрицы импрегнированной коронки в сторону смещения равномерности размещения секторов приводит к неравномерному распределению очистного агента в рабочей зоне инструмента. Как следствие, наиболее зашламованные сектора хуже омываются жидкостью и быстрее изнашиваются. Для реализации поставленной задачи – эксцентриситета режущей части торца матрицы с высоким ресурсом, предложены варианты конструктивного исполнения торца импрегнированной коронки.
Perbandingan Uji Subjektif Kualitas Daging Sapi Bali Produksi Rumah Pemotongan Hewan Gianyar, Klungkung dan Karangasem
Authors: Sihombing Vivi Ekatry , Swacita Ida Bagus Ngurah , Suada I Ketut
Published: November 2020

Kualitas fisik daging merupakan hal yang sangat penting yang harus diperhatikan sebagai hasil produksi suatu Rumah Pemotongan Hewan (RPH), karena kualitas fisik yang baik menghasilkan mutu daging yang berkualitas dan layak untuk dikonsumsi. Tujuan dari penelitian ini adalah mengetahui kualitas fisik daging sapi bali produksi RPH Gianyar, Klungkung dan Karangasem. Sampel daging diambil pada bagian regio longissimus masing-masing sampel diambil sebanyak ± 100 gram. Sampel daging sapi diuji kualitas fisiknya terhadap warna, bau, tekstur dan konsistensi dengan menggunakan 10 orang panelis yang telah memenuhi persyaratan. Data yang diperoleh dianalisis dengan uji Kruskal-Walis jika terdapat perbedaan yang nyata, maka dilanjutkan dengan uji Mann Whitney. Hasil penelitian menunjukkan bahwa warna, bau dan konsistensi daging sapi dari RPH Gianyar, Klungkung, dan Karangasem tidak ada perbedaan nyata, sedangkan untuk tekstur dari RPH Karangasem menunjukkan adanya perbedaan nyata dengan RPH Gianyar dan RPH Klungkung. Tekstur daging sapi dari RPH Karangasem terlihat lebih kasar daripada RPH Gianyar dan Klungkung, hal ini diduga karena umur sapi yang dipotong di RPH Karangasem sudah termasuk sapi-sapi tua sehingga banyak mengandung jaringan ikat dan teksturnya terlihat sangat kasar.
Pengimbuhan Asam Format Menurunkan Jumlah dan Diameter Folikel Limfoid Limpa, dan Memperkecil Diameter Folikel Limfoid Bursa Fabricius
Authors: Aristawati I Dewa Agung Ayu Irma , Adi Anak Agung Ayu Mirah , Berata I Ketut
Published: November 2020

Salah satu cara dalam meningkatkan efisiensi kecernaan pakan adalah dengan menambahkan feed additive. Asam organik yang sering digunakan sebagai feed additive, adalah asam format, karena sifat kelarutannya yang tinggi dalam air. Tujuan penelitian adalah untuk mengetahui pengaruh pemberian asam format terhadap folikel limfoid bursa Fabricius dan limpa ayam, dilakukan penelitian dengan menggunakan 18 ekor day old chick (DOC) ayam kampung dengan tiga perlakuan yakni perlakuan kontrol (P0) ayam diberikan minum yang tidak mengandung asam format. Perlakuan 1 (P1) ayam diberikan air yang mengandung asam format (pH 2,5) dan perlakuan 2 (P2) ayam diberikan air yang mengandung asam format (pH 3,5). Masing masing perlakuan terdiri dari enam ekor ayam sebagai ulangan (n). Ayam ditimbang bobot badannya sebelum diberikan perlakuan. Enam minggu pasca perlakuan, ayam ditimbang kembali dan dikorbankan nyawanya dengan cara dislokasi capitis serta dilanjutkan dengan nekropsi. Organ bursa Fabricius dan limpa diambil dan dimasukkan dalam formalin 10%, jaringan yang telah difiksasi kemudian diproses dan diwarnai dengan pewarnaan Hematoxylin-Eosin (HE). Hasil penelitian menunjukkan bahwa penurunan pH air minum akibat pemberian asam format tidak berpengaruh nyata terhadap jumlah folikel limfoid bursa Fabricius. Namun, berpengaruh nyata terhadap penurunan diameter folikel limfoid bursa Fabricius. Hasil penelitian juga menunjukkan penurunan pH air minum berpengaruh nyata terhadap penurunan jumlah dan diameter folikel limfoid pulpa putih limpa. Simpulannya adalah pemberian air minum yang asam menekan sistem imun ayam kampung.
Dys-functionality of education in the context of the COVID-19 pandemic
Authors:   Аcаdemy of Lаbor аnd Sociаl relаtions, Ananchenkova P.I. , Novikova N.M. ,   Krasnodar University of Ministry of Internal Affairs of Russia — Novorossiysk Branch
Published: November 2020

Researched is the most significant event in socio-economic, political and other spheres of life in the period of 2019–2020 COVID-19 pandemic that significantly “reshaped” principles and technologies of functioning of certain social institutions that traditionally play a stabilizing function in society. The social institute of education is one of these systems. Under the influence of the coronavirus crisis, education as a social institution has shown its strengths and weaknesses in terms of providing a stabilizing function. The dys-functionality of education is most clearly manifested in the lack of readiness of its subjects for a rapid technological transition from full-time to distance learning. The article considers the main forms of dys-functionality of education, expressed in such types of unpreparedness as technological, infrastructure, personnel, skill, and mental, and presents their characteristics and main forms of manifestation. It is concluded that, on the one hand, the coronavirus crisis was a powerful factor in the destabilization of all economic and social systems and caused their dys-functionality. On the other hand, and this was most evident for the Institute of education, it accelerated technological modernization and the rapid transition to innovative forms and technologies of education, followed by an increase in technological literacy of teachers and students, revision of methodological and didactic materials, and a change in the paradigm of managing the educational process directly in educational institutions and in General national education systems.
Quality of life and education in Russia as seen by Vietnamese students
Authors:   Financial University under the Government of the Russian Federation, Pismennaya E.E. , Ryazantsev S.V. ,   Federal Center of Theoretical  and Applied Sociology of Russian Academy of Sciences, Dinh Hai Luong ,   Institute for Humanitarian Research at VASS, Ochirova G.N.
Published: November 2020

Examines the features of educational migration from Vietnam to Russian universities in the years of 1990–2020. Factors that hinder formation of stable attitudes and large-scale migration flows of Vietnamese youth to Russian universities are highlighted. Attitude of Vietnamese students to the quality of life and the quality of education in Russia is established on the basis of sociological methods. Identified the key issues in daily life of Vietnamese students during the COVID-19 pandemic. Recommendations are proposed for changing situation with position of Vietnamese students in the Russian labor market in terms of possibilities of their “settling” for permanent residence in Russia.
The problem of tolerance in ethno-confessional interaction (on example of monitoring Capital metropolis)
Authors:   Federal Center of Theoretical and Applied Sociology of Russian Academy of Sciences, Kublitskaya E.A.
Published: November 2020

Presented is analytical research, devoted to actual problem of tolerance in interethnic and interfaith relations, taking into account the growth of uncontrolled migration processes. The author uses results of monitoring sociological surveys of Institute of socio-political research of Russian Academy of Sciences in the Metropolitan area.
Experience of participation of public organizations in work of social and cultural adaptation and integration of foreign citizens in subjects of the Russian Federation
Authors:   Financial University under the Government of the Russian Federation, Ledenev V.Yu. ,   Federal Center of Theoretical  and Applied Sociology of Russian Academy of Sciences
Published: November 2020

Analyzed is systemic interaction of regional and municipal authorities and public organizations in work of social adaptation and integration of migrants. Socio-demographic demand for migrants and, at the same time, the need for their adaptation and integration is emphasized, since migrants bring their own culture of behavior, traditions and customs, that often contradict values of host societies. At present, issues of adaptation and integration of migrants are coming to the fore in migration policy of the RF in connection with increased migration flows, high risks of extremism and terrorism in migration processes and the growth of illegal migration. In addressing these issues, constructive activity of national-cultural autonomies and other public organizations, that promote adaptation and integration of migrants, could be of significant help. The author identifies the main factors that negatively affect the nature of interaction between local self-government bodies and public organizations, emphasizes the lack of regulatory framework, governing distribution of powers between the federal center and constituent entities, the lack of unified understanding of categories of migrants, who need integration and adaptation. Due to these problems, regional authorities, municipalities and public organizations have different views on tasks of adaptation and integration of migrants and act in accordance with their own ideas about these processes. The article examines experience of the most successful social practices of public organizations in regions of Russia, that might be of interest to federal and regional executive bodies, and results could be used in developing unified approach and methodological support for activities of executive bodies of constituent entities of the RF to improve efficiency of state regulation in this direction.
3D immersive learning in architecture and construction areas = Aprendizaje inmersivo 3D en el campo de la arquitectura y construcción
Authors: Pérez Gabriel , Rodríguez Xavier F. , Burgués Josep María , Solé Marc , Coma Julià
Published: November 2020

Beyond of BIM technology consolidation, the incorporation of virtual reality in the field of architecture and construction implies a new breakthrough which implies several advantages both at professional and academic levels. With the aim to measure the potential of this technology, a set of immersive activities were performed at the University of Lleida in the degree of Technical Architecture and Buildings. From the results, it could be observed the great ease of students in learning the use of virtual reality tools and the great potential of these solutions not only in learning architecture and construction but also as a professional working tool, especially for the design phases.ResumenMás allá de la consolidación de la tecnología BIM, la incorporación de la realidad virtual en el campo de la arquitectura y la construcción implica un nuevo avance que conlleva varias ventajas tanto a nivel profesional como académico. Con el objetivo de medir el potencial de esta tecnología, se realizaron un conjunto de actividades inmersivas en el grado de Arquitectura Técnica y Edificación de la Universidad de Lleida. A partir de los resultados, se pudo observar la gran facilidad de los estudiantes para aprender el uso de herramientas de realidad virtual y el gran potencial de estas soluciones no solo en el aprendizaje de arquitectura y construcción, sino también como una herramienta de trabajo profesional, especialmente para las fases de diseño.
KOMUNIKASI INSTRUKSIONAL SEBAGAI PENUNJANG KEBERHASILAN PELAKSANAAN KURIKULUM 2013
Authors: Islami Sarah Qaida , Istiyanto S. Bekti
Published: November 2020

Kurikulum 2013 adalah sebuah kurikulum yang menekankan pendidikan karakter dimana siswatidak hanya memiliki kemampuan kognitif, namun juga kemampuan spiritual, sosial, danketerampilan yang dipadukan dalam sebuah mata pelajaran. Dalam hal ini guru menggunakanstrategi komunikasi instruksional untuk mencapai tujuan pembelajaran. Penelitian ini bertujuanuntuk mengetahui penggunaan komunikasi instruksional untuk menunjang keberhasilanpelaksanaan kurikulum 2013. Salah satu bentuk keberhasilan kurikulum 2013 adalah bahwa siswadapat turut aktif dalam kegiatan pembelajaran. Penelitian ini menggunakan metode kualitatifdengan pendekatan studi kasus. Observasi, wawancara, dan dokumentasi digunakan sebagaiteknik pengumpulan data. Hasil penelitian menunjukkan bahwa komunikasi instruksional yangdigunakan guru dalam keberhasilan kurikulum 2013 tidak hanya menggunakan komunikasi verbaldan nonverbal, namun juga bagaimana guru mengkondisikan mood siswa agar dapat menerimapesan pembelajaran dengan baik. Proses komunikasi dilakukan dengan cara memasukkan pesanke dalam permainan, nyanyian, dan bermain peran. Penelitian ini menggunakan teori penguatansebagai salah satu strategi komuikasi instruksional yang digunakan guru untuk mendorongkeaktifan siswa.
Role of Immune Cells in Multiple Sclerosis and Experimental Autoimmune Encephalomyelitis
Authors: Dhaiban Sarah , Al-Ani Mena , Elemam Noha Mousaad , Al-Aawad Mahmood H , Al-Rawi Zeinab , Maghazachi Azzam A.
Published: November 2020

Multiple sclerosis (MS) is a chronic autoimmune disease that affects the central nervous system (CNS) characterized by varying degrees of demyelination of uncertain etiology, and is associated with specific environmental and genetic factors. Upon recognition of CNS antigens, the immune cells initiate an inflammatory process which leads to destruction and deterioration of the neurons. Innate immune cells such as macrophages, dendritic cells and natural killer cells are known to play critical roles in the pathogenesis of MS. Also, the activation of peripheral CD4+ T cells by CNS antigens leads to their extravasation into the CNS causing damages that exacerbates the disease. This could be accompanied by dysregulation of T regulatory cells and other cell types functions. Experimental autoimmune encephalomyelitis (EAE) is a mouse model used to study the pathophysiology of MS disease. In this review, we highlight the roles of innate and adaptive immune players in the pathogenesis of MS and EAE.
A Parameter-Free Spectral Clustering Approach to Coherent Structure Detection in Geophysical Flows
Authors: Filippi Margaux , Rypina Irina , Hadjighasem Alireza , Peacock Thomas
Published: November 2020

In Lagrangian dynamics, the detection of coherent clusters can help understand the organization of transport by identifying regions with coherent trajectory patterns. Many clustering algorithms, however, rely on user-input parameters, requiring a priori knowledge about the flow and making the outcome subjective. Building on the conventional spectral clustering method of Hadjighasem et al (2016), a new parameter-free spectral clustering approach is developed that automatically identifies parameters and does not require any user-input choices. A noise-based metric for quantifying the coherence of the resulting coherent clusters is also introduced. The parameter-free spectral clustering is applied to two benchmark analytical flows, the Bickley Jet and the asymmetric Duffing oscillator, and to a realistic, numerically-generated oceanic coastal flow. In the latter case, the identified model-based clusters are tested using observed trajectories of real drifters. In all examples, our approach succeeded in performing the partition of the domain into coherent clusters with minimal inter-cluster similarity and maximum intra-cluster similarity. For the coastal flow, the resulting coherent clusters are qualitatively similar over the same phase of the tide on different days and even different years, whereas coherent clusters for the opposite tidal phase are qualitatively different.