bluuebunny/crossref_metadata_2025 huggingface dataset:
Effectiveness of Whitening Strips Use Compared With Supervised Dental Bleaching: A Systematic Review and Meta-analysis
Authors: da Rosa GRV , Maran BM , Schmitt VL , Loguercio AD , Reis A , Naufel FS
Published: November 2020

Clinical Relevance

Bleaching performed at-home while under the supervision of a dentist provides greater color alteration compared with whitening strips when evaluated with a spectrophotometer, although the color alteration was undetectable by unaided human eyes.

Objective:

A systematic review and meta-analysis were performed to answer the following research question: Does the use of whitening strips (WS) lead to an equivalent color change compared with supervised dental bleaching in patients with permanent dentition?

Methods:

A search was performed on August 10, 2017 (updated on March 22, 2019), in PubMed, the Brazilian Library in Dentistry, Latin American and Caribbean Health Sciences Literature database, Cochrane Library, Scopus, Web of Science, and grey literature, without restrictions regarding date or language. Abstracts from the International Association for Dental Research, unpublished and ongoing trial registries, dissertations, and theses were also searched. Only randomized clinical trials (parallel or split mouth) in patients with permanent dentition that compared WS with dentist-supervised dental bleaching performed at-home (AH) or in-office (IO) were included. The risk of bias (RoB) was evaluated using the Cochrane Collaboration tool. A meta-analysis with subgroup analysis (low and high peroxide concentration) was conducted for color change ΔE* (spectrophotometer) and ΔSGU (shade guide units), risk and intensity of tooth sensitivity (TS), gingival irritation (GI), and patient satisfaction using a random effects model. Heterogeneity was assessed with the Cochran's Q test and I2 statistics. GRADE (Grading of Recommendations, Assessment, Development and Evaluation) was used to assess the quality of the evidence.

Results:

After the removal of duplicates, followed by title and abstract screening, 20 studies remained. Only two studies were considered to have a low RoB; 11 had a high RoB, and seven had an unclear RoB. For WS versus IO, data were not available for the meta-analysis. For WS versus AH bleaching, a significant difference in ΔE* favoring the AH group was observed (standardized mean difference [SMD] = −0.50, 95% confidence interval [CI] −0.79 to −0.21), but the risk (risk ratio = 0.78, 95% CI 0.65 to 0.93) and intensity of TS (SMD = −0.30, 95% CI −0.56 to −0.04) were lower in the WS group. Color change in ΔSGU, risk and intensity of GI, and patient satisfaction were not significantly different between groups (p>0.20). The quality of evidence for ΔE*, risk and intensity of TS, and intensity of GI were graded as moderate.

Conclusion:

Although the risk and intensity of TS were lower in the WS group, dentist-supervised at-home bleaching led to a better color change when measured with a spectrophotometer, although the color alteration was undetectable by unaided human eyes.
An Implicit to Explicit FEA Solving of Tire F&M with Detailed Tread Blocks
Authors: Li Zhao , Li Ziran R. , Xia Yuanming M.
Published: November 2020

A detailed tire-rolling model (185/75R14), using the implicit to explicit FEA solving strategy, was constructed to provide a reliable, dynamic simulation with several modeling features, including mesh, material modeling, and a solving strategy that could contribute to the consideration of the serious numerical noises. High-quality hexahedral meshes of tread blocks were obtained with a combined mapping method. The actual rubber distributing and nonlinear, stress-strain relationship of the rubber and bilinear elastic reinforcement were modeled for realism. In addition, a tread-rubber friction model obtained from the Laboratory Abrasion and Skid Tester (LAT 100) was applied to simulate the interaction of the tire with the road. The force and moment (F&) behaviors of tire cornering when subjected to a slip-angle sweep of −10 to 10° were studied with that model. To demonstrate the efficiency of the proposed simulation, the computed F&M were compared with experimental results from an MTS Flat-Trac Tire Test System. The computed cornering F&M agreed well with the experimental results, so the footprint shape and contact pressure distribution of several cornering conditions were investigated. Furthermore, the longitudinal forces in response to braking/driving torque application in a slip-ratio range of −100% to 100% were computed. The proposed FEA solution confines the numerical noise within a smaller range and can serve as a valid tool in tire design.
Efficient Acquisition of Tire Data and Its Application in Vehicle Handling Simulation
Authors: Olsson Henning , Hugon Emmanuel , Rouelle Claude
Published: November 2020

Tire force and moment data can be collected from laboratory testing or track testing using wheel force transducers. The data can then be used to generate semiempirical tire models. Examples of the two methods are presented; differences in the results between the two methods are discussed.

With novel simulation methodology, tire models have been used to successfully predict vehicle handling characteristics. The influence of tire design changes on overall vehicle performance can quickly be evaluated both in terms of on-center stability and at the limit balance.
Comparing Spray from Tires Rolling on a Wet Surface
Authors: Plocher Dennis A. , Browand Fredrick K.
Published: November 2020

Tire spray generated as automobile or truck tires roll over a wet roadway is a familiar hazard to all drivers. Past efforts to mitigate the effects of tire spray have focused on inventing and testing add-on devices to suppress, redirect, or contain spray. These devices have had only limited success in controlling spray. An alternate approach would be to examine tire spray at the source—the tire and wet roadway.

This article describes a device designed to simulate tire spray in a laboratory setting, allowing a careful examination of spray in a controlled environment. The device limits the spray to that produced from water passing through a tire groove and then carried away from the roadway by the rotating tire. The spray pattern downstream of the tire patch is captured with high-speed video and stored on disk. The video images are then processed as desired by computer. A concept “time-to-drain” is introduced to characterize the angle at which spray leaves the tire. Time-to-drain is then used to compare the spray patterns of different tires.
Comparison of different Parameters of Heart Rate Frequency of Tasks Performed during Aircraft Open-Basket Ground Deicing Activities
Authors: K Landau
Published: November 2020

Plane deicing is mandatory to insure safe plane take-off. Previous human factors studies have shown that open-basket deicing activity can be improved. The objective of the paper is to compare heart rate assessment models within a field study with numerous influencing variables and small sample size as well as to deepen our understanding of the most demanding openbasket tasks using cardiac output. A field study in a Canadian centered plane deicing facility was conducted in 2016-2017. 12 participants contributed to a thorough description and analysis of open-basket deicing activities. Respiratory and cardiac output of these participants was collected using Hexoskin vests. Working heart rate, heart rate reserves as well as calculations of absolute cardiac cost were done. Working heart rate (WHR), Heart Rate Reserve (HRR) and Absolute Cardiac Cost (ACC) do not behave uniformly for the majority of participants. In field studies with a large number of influencing variables on the heart rate, it is usually not sufficient to consider one single evaluation measure like WHR. In the interest of protecting employees, it seems to make sense to use the more cautious measures HRR or ACC as parameters instead of WHR. Superimposed activities (e.g. forced postures and dynamic use of upper body) have a significant effect on heart rate increases. In 8 out of 11 cases we have fatigue-related increases in heart rate over the observation period. Similar studies need to be conducted in other aircraft deicing facilities.
Analysis of Peasant Farmers in Rabbit Production in Sokoto State, Nigeria
Authors: Bello Abdulrahman
Published: November 2020

The study evaluated the analysis of peasant farmers in rabbit production in Sokoto south local government area in Sokoto state, Nigeria. The procedure involved multi stage sampling t echniques of the sample size and the use of questionnaire was employed. The entire respondents were rabbit farmers. This study examined current trend on small and ultra - small - holder rabbits units in Sokoto south of Sokoto state Nigeria. The methodology com bined questionnaire survey with on - farm monitoring and recording of data in relations to socio - economic characteristics of rabbits keepers, management, constraints and marketing outlets .the result obtained was presented in frequency and percentage table. The study shows that 70% were male while 30% were female. The study also review that 44%, 36%, 12% and 8%represent the ages of rabbits farmers of 25 - 35years, 36 - 45years, 46 - 45years and 56years and above respectively within the study area, it was also revie w that 64%, 20%, and 16% represent the marital status which includes that of single married and widow. the distributions of years of farmers experience in rabbits production is also represented by 20%, 40%, 10%, and 30% of 1 - 6years, 7 - 12years and 19 years and above of experience respectively. It also reveals that the source of breeding stocks by the farmers, i.e. from own stock, other farmers, market and research institutions which was represented by 40%, 20%, 36% and 4% respectively. And with respect to ho using many farmer place their cage outside the house (70%) and also the major disease experience by the farmer is manage (52%) which serves as one of constrains facing the rabbit farmer meanwhile mating of does follows seasonal pattern due to seasonal heat stress. About (52%) farmer noted that does perceptivity and conception rates were markedly low during the dry season. From this study it highly recommended that the farmer should put down the use of personal experience in putting the animal and the extens ion agent should reach out to the rabbit farmers for proper and adequate information and the farmer should make used of stocks from the research institute for stocks replacement/breeding.
LEITURAS DA APROPRIAÇÃO TERRITORIAL EUROPEIA NA SEDIMENTAÇÃO DE IDENTIDADES NO BRASIL
Authors: Barcellos da Silva Jorge Luiz
Published: November 2020

O objetivo desse artigo é reconhecer como leituras das territorialidades se constituíram em ferramentas para a sedimentação de identidades no Brasil . Para tal identifica pinturas de Ekout e mapas de diferentes procedências  retratando a porção portuguesa na América, no transcorrer do século XVII e analisa  o como essas representações do território e de seus habitantes se transformaram em  importante fator para sistematizar o processo de posse europeia do mundo. Os resultados encontrados evidenciam que  os fundamentos topológicos nortearam os discursos e práticas assentando  nexos  para  as  apropriações  territoriais, o estabelecimento de fronteiras, redimensionando o entendimento do que seria o  Brasil.
REFLEXÕES SOBRE UMA ZONA DE FRONTEIRA NO SÉCULO XVII: A PROVÍNCIA DO GUAIRÁ E SERTÃO DOS CARIJÓS
Authors: Correa Dora Shellard
Published: November 2020

Neste artigo examinaremos uma fronteira europeia no sul da América em inícios do século XVII. Singularmente, analisaremos o que os nossos testemunhos expõem sobre as relações de poder e o conhecimento que tinham sobre aquele espaço indígena que buscavam ocupar, dominar, que atravessavam e onde negociavam. Focaremos, principalmente, o norte, noroeste, oeste e sudeste do atual Estado do Paraná que fazia parte, na segunda metade do século XVI até primeiras décadas do século XVII, da Província espanhola do Guairá, área conhecida na América portuguesa como Sertão dos Carijós.
A FERROVIA E A OCUPAÇÃO DO SERTÃO PAULISTA: A COMPANHIA PAULISTA E SUA LINHA TRONCO OESTE
Authors: Campos Cristina , Inoue Luciana Massami
Published: November 2020

As ferrovias tiveram grande importância na estruturação do território paulista. A construção das ferrovias teve dois momentos: o primeiro, no qual seguiram a marcha do café, e outro momento, em que se anteciparam as plantações. Neste segundo momento, as companhias ferroviárias adentraram o sertão oeste, interessadas em garantir suas zonas de exploração, bem como a comercialização de terras. O enfoque recairá sobre a linha tronco oeste da Companhia Paulista, porém acredita-se que o processo de ocupação do sertão oeste foi semelhante nas principais companhias ferroviárias e que juntas contribuíram para a urbanização do território.
MEMÓRIA, ESCRITA DE SI E IDENTIDADE NOS SERTÕES: ENSAIO SOBRE A BUSCA POR NOVAS ALTERIDADES NAS FRONTEIRAS
Authors: Santos Evandro Dos
Published: November 2020

O artigo, escrito em formato ensaístico, problematiza as possibilidades e limites da escrita da história desde os sertões, tomando por ponto de partida a dimensão social da produção do conhecimento científico, em particular, no que diz respeito aos jogos de poder que caracterizam os ambientes institucionais nacionais e internacionais. Além disso, o estudo tem por escopo refletir sobre o impacto do olhar exclusivamente exterior sobre as regiões de fronteira, como são, de modo geral, os sertões, em especial, no que se refere à construção de memórias e identidades totalizantes. Por fim, apresenta-se um estudo de caso, desde o sertão do Rio Grande do Norte (Brasil), sendo este resultado de pesquisa mais ampla, desenvolvida nos últimos anos acerca dos sertões nordestinos.
O BRASIL SERTANEJO: A CONSTRUÇÃO DO ESPAÇO NACIONAL EM O SERTANEJO (1875) DE JOSÉ DE ALENCAR
Authors: Santana Artur Vitor Araújo , Azevedo Natanael Duarte
Published: November 2020

A partir do livro O sertanejo (1875), de José de Alencar, analisamos a construção do espaço nacional, levando em consideração a tomada do interior do Brasil como a paisagem autenticamente brasileira, que tem o vaqueiro como protagonista da formação social do país. Para isso, são selecionados trechos do romance que elucidam a caracterização da geografia física sertaneja, tencionando o discurso alencariano, com os debates contemporâneos ao autor sobre a nação. Assim como estudamos a recepção da obra de Alencar nos periódicos cariocas, discutindo a atribuição da caracterização do romancista como pintor idílico das terras brasílicas.
"La cuestión de límites": Intelectuais, diplomatas e a disputa pelas fronteiras entre Argentina e Chile (Séculos XIX a XXI)
Authors: Passetti Gabriel
Published: November 2020

Os Estados argentino e chileno atualmente são divididos pela terceira maior linha fronteiriça do mundo e, desde a segunda metade do século XIX, houve intensos debates intelectuais sobre as áreas a serem controladas por cada país. O artigo relaciona como a intensificação da produção daqueles homens colaborou na construção de rivalidades, antagonismos e tensões internacionais que quase levaram à guerra em três oportunidades. Seu objetivo central é debater as conexões entre intelectuais, diplomatas, políticos e militares em perspectiva comparada e conectada, tendo como foco o debate sobre a linha internacional de fronteiras.
MAPPING THE DIMENSIONS OF HUMAN RESOURCES DEVELOPMENT: A SCOPING REVIEW
Authors: Huda Kazi Nazmul
Published: November 2020

Human Resource Development (HRD) is a precondition of economic growth, political stability and social sustainability. HRD intervention may facilitate achieving high-performance standards at individual, organizational, national, and international echelon. The paper is designed to explore and catalog different dimensions and variables of HRD through a critical review of existing literature. Hence, the opinion of HRD experts was collected through focus group discussion and face to face interview to authenticate the explored variables of HRD. The study has explored different dimensions and variables of HRD with regard to inputs, objectives, interventions, outputs, outcomes, and beneficiaries of HRD comprehensively by using the scoping review technique. The study has contributed to the existing body of knowledge by providing a new definition of HRD and presenting its different dimensions systematically. There is an immense scope to develop further knowledge on HRD if the empirical validity of the HRD variables is investigated comprehensively.
THE EFFECT OF GRANULATED ACTIVATED COAL ON THE PHYSICAL PROPERTIES OF SOILS AT COPTER CONTAMINATION
Authors:   Southern Federal University, Rostov-on-Don, Russian Federation, Zamulina I.V. , Pinsky D.L. ,   Institute of Physicochemical and Biological Problems of Soil Science of the Russian Academy of Sciences, Pushchino, Russian Federation, Burachevskaya M.V ,   Southern Federal University, Rostov-on-Don, Russian Federation, Bauer T.V. ,   Southern Federal University, Rostov-on-Don, Russian Federation, Pshenichnaya A.A
Published: November 2020

The article presents the results of a study of the effect of the carbon sorbent of granular activated carbon on the physical properties of soils under conditions of copper pollution. The use of activated carbon has a positive effect on accelerating the process of restoring the physical properties of the soil, due to the high pore space and the specific surface of the sorbent. The structural state improves, and the waterholding ability increases.
POTENTIAL PRODUCTIVITY ADAPTIVE AGROPHUTOCENOZIS ON SLOPING LANDS OF THE STEPPE TRANS-URALS
Authors:   Ufim Federal Research Center of the Russian Academy of Sciences, Ufa, Russian Federation, Idrisov R.А.
Published: November 2020

The correct construction of agrophytocenoses on the slopes of the steppe trans-Urals helped to create maximum productivity. In the arid climate, the most productive were the double mixtures of alfalfa with brittle sitnik, wheatgrass is syd, providing an average of 41.6 and 40.2 quintals per hectare (c/ha) of hay, 32.1 and 31.0 GJ/ha OE (exchange energy per hectare), 4.5 and 4.3 quintals per hectare of boiled protein (c/ha) over 5 years. Single-species steppe ecotypes, brittle sieve and wheatgrass sieve in productivity slightly gave way to double components, providing respectively hay- 32.2 and 37.2 cents per hectare, exchange energy 22.2 and 25.7 GJ/ha, digested protein 1.93 and 2.53 c/ha. The enrichment of agrophytocense by the legume component allowed to increase the metabolic energy content to the level of 32.1 and 31.0-GJ/ha, digested protein to 4.5 and 4.3 quintals per hectare, which is 14 times the nutritional value of the metabolic energy, the digested protein is 10 times higher than the natural herb.
APPLICATION OF DIGITAL TECHNOLOGIES FOR DATA COLLECTION, PROCESSING AND ANALYSIS IN CROP PRODUCTION
Authors:   Siberian federal research center of agrobiotechnologies of the Russian Academy of Sciences, Krasnoobsk, Russian Federation, Isakova S.P , Balushkina E.A. ,   Siberian federal research center of agrobiotechnologies of the Russian Academy of Sciences, Krasnoobsk, Russian Federation
Published: November 2020

The article presents an analysis of existing digital technologies presented in the form of software and information support in the field of crop production. Russian and foreign mobile applications presented in the form of reference applications and decision support applications are considered. Promising solutions for the use of digital technologies were identified: differential fertilization, monitoring of the state of crops and crop quality, drawing up digital maps and planning.
THE ROLE OF INTELLECTUAL POTENTIAL IN THE DEVELOPMENT OF THE ECONOMY OF THE AGRO-INDUSTRIAL COMPLEX OF THE ROSTOV REGION
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Olatalo O.A.
Published: November 2020

The article analyzes the key problems of the agricultural sector of the Rostov region. The interconnection between the intellectual potential and its influence on the agro-industrial complex is established. The concept of “intellectual potential of labor” within the region has been clarified. Three indices are identified as part of the intellectual potential of labor in the Rostov Region: educational, physical and scientific.The dynamics of the intellectual potential indices of the Rostov region 2015 - 2019 is presented.Recommendations and a forecast for the further development of the intellectual potential of the region, including in the agricultural sector, are given.
MODEL OF TRANSITION TO "GREEN" INVESTMENT
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Azarenko V.O. , Kurdyukov V.N. ,   Don State Technical University, Rostov-on-Don, Russian Federation
Published: November 2020

The article is devoted to the proposal of a model of gradual transition of organizations to "greening" their business. The essence of each step aimed at minimizing resource depletion is reflected. Attention is paid to the elements of the transition strategy to "green" assets. The sources of financing for"green" investments are disclosed, and the structure of the financing transaction is determined.
IMPROVING THE EFFICIENCY OF SOIL PROCESSING UNITS
Authors:   Russian research Institute of information and technical and economic research on engineering and technical support of the agro-industrial complex», Novokubansk, Russian Federation, Sviridova S.A. , Skorlyakov V.I. ,   Russian research Institute of information and technical and economic research on engineering and technical support of the agro-industrial complex», Novokubansk, Russian Federation, Nazarov A.N. ,   Russian research Institute of information and technical and economic research on engineering and technical support of the agro-industrial complex», Novokubansk, Russian Federation
Published: November 2020

The article presents the results of the analysis of the effectiveness of soil processing units when working at high speeds. The results of operational, technological and economic evaluations of units with disk harrows are presented.
DEVICES FOR JOINT SEEDING OF TWO CROPS
Authors:   Don state technical University, Rostov-on-Don, Russian Federation, Siryachenko S.R. , Lightfoot A.N. ,   Don state technical University, Rostov-on-Don, Russian Federation
Published: November 2020

this article presents the relevance of joint seeding at the present time and the differences between joint and combined seeding.The technical devices that are used for sowing two crops at the same time, as well as trends in the development of such crops, are presented.
USING OF LIGNIN AS AN ENVIRONMENTALLY GROWTH STIMULANT FOR AGRICULTURAL PLANTS
Authors:   Tver State Technical University, Tver, Russian Federation, Smirnova E.V. ,   Federal scientific center of bast crops, Tver, Russian Federation, Ozhimkova E.V. ,   Tver State Technical University, Tver, Russian Federation, Korotkova E.M. ,   Åbo Akademi University, Turku, Finland, Uschapovsky I.V. ,   Federal scientific center of bast crops, Tver, Russian Federation
Published: November 2020

The effectiveness of using lignin solutions as plant growth stimulants has been studied. As test objects for the study of growth-stimulating activity of lignin solutions, the seeds of cultural flax, an important agricultural crop in the Tver region, were used.
OPERATIONAL APPROACH FOR DETERMINING RISER SIZES PROVIDING HIGH QUALITY STEEL CASTINGS
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Fedosov A.V. , Chumachenko G.V. ,   Don State Technical University, Rostov-on-Don, Russian Federation
Published: November 2020

An approach is proposed for the efficient selection of profits in the design of the gatefeeding system for steel castings made in sand and clay forms. The presented results of mathematical modeling allow you to quickly make a decision on the choice of profit margin, which provides high-grade nutrition of the casting thermal units
DETERMINATION OF THE AMOUNT OF PHOSPHORUS BY COLORIMETRIC METHOD IN FISH PRODUCTS
Authors:   Bashkir State Agrarian University, Ufa, Russian Federation, Abramova E.P. , Ishberdina R.R. ,   Bashkir State Agrarian University, Ufa, Russian Federation
Published: November 2020

Fish is a source of vital minerals, fatty acids and vitamins. The value of fish is the fatcontent. It is fish oil that contains such fatty acids, which play a huge role in metabolism.
VARIETY SPECIFICITY OF PHYTOCHEMICAL COMPOSITION B. OLERACEA L. VAR. ACEPHALA
Authors:   Kazan Federal University, Kazan, Russian Federation, Almughraby E. , Kalimullin M. I. ,   Kazan Federal University, Kazan, Russian Federation, Mostyakova A.A. ,   Kazan Federal University, Kazan, Russian Federation, Timofeeva O.A ,   Kazan Federal University, Kazan, Russian Federation
Published: November 2020

Purpose of work - Comparative analysis the content of phenolic compounds, flavonoids, carotenoids, vitamin C, protein and sugars in different varieties of cabbage kale (B. oleracea L. convar. Acephala). As an object of study, we used 2 varieties of cabbage kale - Premier cabbage, Dwarf Blue Curled with green leaves, Redbor with red leaves and Scarlet with purple. It was shown that the content of phenolic compounds and flavonoids was significantly higher in red varieties, compared with green. The content of carotenoids was higher in green varieties. The highest content of flavonoid was found in the variety «Scarlet» and vitamin C in the variety «Redbor». However, the amount of proteins and sugars, there were no significant differences between the varieties.
INFLUENCE OF LECITHIN ON ORGANOLEPTIC PROPERTIES OF GLAZES
Authors:   Kuban State Technological University, Krasnodar, Russian Federation, Baranova Z.A , Krasina I.B. ,   Kuban State Technological University, Krasnodar, Russian Federation
Published: November 2020

The viscosity of the glaze is an important technological indicator. To reduce the viscosity of chocolate masses, vegetable phosphotide concentrates are used. One of the most widely used food emulsifiers is lecithin. The study conducted a study of the visual determination of color and odor of samples.The values of the maximum and optimal dosages for introducing lecithin into industrial samples of fat compositions for confectionery glazes are established.
PERFORMANCE INDICATORS OF ADAPTIVE FRICTION CONTACT WITH INDIRECT REGULATION
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Zadoshenko E.G , Sokolenko A.I. ,   Don State Technical University, Rostov-on-Don, Russian Federation, Boginskaya V.V ,   Don State Technical University, Rostov-on-Don, Russian Federation, Kayibanda D.V. ,   Don State Technical University, Rostov-on-Don, Russian Federation
Published: November 2020

The equation of the profile curve of the slot for the rolling body of the automatic control device is obtained, this equation is used to stabilize the output parameter of the adaptive friction contact withindirect control. It is shown that the parameters of the comparison block and the additional adder are functionally dependent on the maximum coefficient of friction.
TECHNOLOGICAL APPLICATIONS OF ADAPTIVE FRICTION CLUTCHES
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Moiseeva N.V.
Published: November 2020

It is shown that the largest part of the existing adaptive friction clutches is suitable for use only in light and medium-loaded drives of machines, and their smallest part can be used in drives of machines operating at highly stabilized load on the Executive body. It is proven that short drives with a single-threaded kinematic chain it is advisable to use the adaptive friction clutch having relatively low accuracy and limited nominal loading capacity, in drives with long single-threaded kinematic chain, appropriate use of adaptive friction couplings with relatively low accuracy and with a higher nominal load capacity.
EFFECT OF ENZYMATIC MODIFICATION OF WHITE CORN FLOUR STARCH ON THE QUALITY OF BREAD FOR PATIENTS DIAGNOSED WITH CELIAC DISEASE
Authors:   North Ossetian State University, Vladikavkaz, Russian Federation, Burnatseva A.A. , Khmelevskaya A.V. ,   North Ossetian State University, Vladikavkaz, Russian Federation, Gazzaeva A.A ,   North Ossetian State University, Vladikavkaz, Russian Federation, Gusalova M.I. ,   North Ossetian State University, Vladikavkaz, Russian Federation, Karaeva I.T. ,   North Ossetian State University, Vladikavkaz, Russian Federation
Published: November 2020

The effect of enzymes with amylolytic activity on the degree of hydrolysis of white corn flour in order to improve the quality of gluten-free bread for special nutrition was studied. Starch was hydrolyzed using mushroom α-amylase and glucoamylase in an amount of 0.005 % and 0.03 % by weight of flour, respectively. As a result, the number of sugars increased to 5.0 % - 5.5 %. The optimal pH value of 4.7 for the action of enzymes was set by adding 0.065 % citric acid. Hydrolysis was subjected to 50 % of white corn flour from the total amount, the humidity of the hydrolyzate was 65%. In addition to mono-and disaccharides, the hydrolysate accumulated 3.5 % on THE basis of dextrins, of which-1.3 % - achro-and maltodextrins, reducing the degree of stale bread.
BIOLOGICAL GROUNDS FOR POSSIBLE FISHERY USE OF LAKES IN THE TVER AREA
Authors:   All-Russian Research Institute of Fisheries and Oceanography, Moscow, Russian Federation, Varentsova E.Y ,   Astrakhan State Technical University, Moscow, Russian Federation, Goryachev D.V ,   All-Russian Research Institute of Fisheries and Oceanography, Moscow, Russian Federation, Golovina N.A. ,   All-Russian Research Institute of Fisheries and Oceanography, Moscow, Russian Federation,   Astrakhan State Technical University, Moscow, Russian Federation
Published: November 2020

On the example of two lakes in the south west of the Tver area, the analysis of hydrological, hydrochemical, hydrobiological characteristics has been carrid out and their production potential estimated. For further fishery use, we recommend to arrange an industrial (cage) farm at the lake Krugloe, and to establish a recreational farm with a cage system at the lake Volkota for commercial cultivation of the Lena sturgeon and sterlet.
MINIMIZATION OF ECONOMIC LOSSES IN A FLAX SUBCOMPLEX OF AIC
Authors:   Federal Scientific Center of Bast Crops, Tver, Russian Federation, Velikanova I.V.
Published: November 2020

The article presents an objective assessment of the extent of economic losses in the flax complex of Russia, including indirect ones, caused by the violation and imperfection of the technologies for growing, harvesting and primary processing of flax, as well as the rationale for minimizing them. It has been established that the most relevant of these methods should include the most complete restoration of the functions of the weakest links in the technological, technical and organizational - economic systems of the flax subcomplex.
DECREASE IN TECHNOGENIC LOAD OF AGRICULTURAL LANDS FROM PLACEMENT OF DRILL CUTTINGS ON THEM
Authors:   Perm National Research Polytechnic University, Perm, Russian Federation, Vlasov A.S. , Pugin K.G. ,   Perm National Research Polytechnic University, Perm, Russian Federation,   Perm State Agro-Technological University named after Academician D.N. Pryanishnikov, Perm, Russian Federation
Published: November 2020

The urgency of the problem of contamination of parts of agricultural land from the placement of drilling barns on them is described. Methods of reducing the negative impact on environmental objects from drill cuttings are presented. Samples of drill cuttings at several large oil fields were selected as objects of study. The results of studies of the physical and chemical properties of drill cuttings showed that there are excesses of permissible values for chemical oxygen demand, solids, chlorides, oil products, solids, hardness, magnesium and calcium ions, and chlorides. To reduce the negative impact, the direction of disposal of drill cuttings in road construction was chosen. A cement slurry-based cement primer was obtained, which belongs to the M20 strength grade, but has insufficient frost resistance, due to which it is recommended for use in countries characterized by tropical and subtropical climates
ANALYSIS OF ADAPTIVE FRICTIONAL CONTACT SOLID BODIES WITH INDIRECT REGULATION
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Zadoshenko E.G. , Sokolenko A.I. ,   Don State Technical University, Rostov-on-Don, Russian Federation, Boginskaya V.V. ,   Don State Technical University, Rostov-on-Don, Russian Federation, Kayibanda D.V. ,   Don State Technical University, Rostov-on-Don, Russian Federation
Published: November 2020

Dependencies were found for determining the values of the parameters of the automatic control unit of the adaptive friction contact with indirect control, which allow stabilizing its output parameter. Profiling of the side walls of the sockets of the automatic control unit of the adaptive friction contact isperformed, which allows to exclude the influence of the coefficient of friction on the output parameter.
DENDROCHRONOLOGICAL RESEARCHES IN ARTIFICIAL PLANTINGS OF NUR-SULTAN CITY
Authors:   Kazakh Research Institute of Forestry and Agroforestry, Shchuchinsk, Republic of Kazakhstan, Kabanov A N. , Kabanova S.A. ,   Kazakh Research Institute of Forestry and Agroforestry, Shchuchinsk, Republic of Kazakhstan
Published: November 2020

Dendrochronological analysis was carried out in forest cultures of Pinus sylvestris of different ages growing in the green zone of Nur-Sultan city. It was found that the value of the annual radial growth is subject to a cycle with a period of 10-11 years. This is due to climatic conditions, in particular, with periods of solar insolation, which is confirmed by researches of other authors.
UPGRADING OF LOCKING SUPPORTS OF ROD-TYPE DOWNHOLE PUMPS
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Kaderov H.K , Kireev S.O. ,   Don State Technical University, Rostov-on-Don, Russian Federation, Korchagina M.V. ,   Don State Technical University, Rostov-on-Don, Russian Federation, Lebedev A.R. ,   Don State Technical University, Rostov-on-Don, Russian Federation, Maximik A.V. ,   Don State Technical University, Rostov-on-Don, Russian Federation
Published: November 2020

The article provides analysis of existing structures of lock supports for fixation of plug-in rod-type downhole pumps. Based on the analysis, the connection of the lock support elements and the pump is evaluated. Description is given of the new structure of the lock support equipped with a set of spring-loaded and radially extendable sliders. The latter have conical surfaces interacting in forward and reverse directions with pump armature. The proposed design has high variability, which allows to perform modeling of the product both at the stage of design and at the stage of implementation.
Calculation and design of adaptive friction second-generation couplings (first version)
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Shishkarev M.P.
Published: November 2020

The method of calculating an adaptive friction clutch with a separate power closure (the first option) is given.The features of calculating the values of the clutch control device parameters to ensure the highest accuracy of operation at a given nominal load capacity are shown. Explanations are given when calculating the values of the control device parameters depending on the shape of the load characteristic of the coupling.
INVESTIGATION OF OPTIONS FOR STAMPING AND FORGING A ROD-TYPE PART WITH A THICKENING IN THE FORMING STREAM ON A HORIZONTAL FORGING MACHINE
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Bondarenko K. A. , Efremova E.A.
Published: November 2020

The article analyzes the options for stamping a rod-type forging with a thickening in the molding stream on a horizontal forging machine. The method of forming the head in the punch and landing in the punch and in the matrix is considered. The most optimal technology for forming the "Shaft" forging head was selected, and the dimensions of the blank itself were selected and adjusted to better fill the die catch and prevent the material from flowing into the gap with the formation of a Burr.
INFLUENCE OF FERTILIZERS AND SURFACE TREATMENT ON THE DENSITY OF THE POPULATION OF PATHOGENS AND SAPROTROPHES IN TYPICAL BLACK SOIL OF THE TAMBOV REGION
Authors:   All-Russian Research Institute of Genetics and Selection of Fruit Plants named after I.V. Michurin, Michurinsk, Russian Federation, Lavrinova V.A. , Polunina T.S. ,   All-Russian Research Institute of Genetics and Selection of Fruit Plants named after I.V. Michurin, Michurinsk, Russian Federation, Leontyeva M.P. ,   All-Russian Research Institute of Genetics and Selection of Fruit Plants named after I.V. Michurin, Michurinsk, Russian Federation
Published: November 2020

A complex of soil phytopathogenic and saprotrophic winter wheat mycobiota was revealed. The research results proved the feature of the allocation of structures by an improved method. Surface treatment, to one degree or another, contributed to the stabilization of the state of antagonistic soil mycobiota of the soil. The optimal dose of mineral fertilizer was determined against the background of surface soil cultivation, which successfully restrained the number of micromycetes causing root rot. It was noted that mythomycetes of the genus Pythium were most often found in soils in all cultures, less than Fusarium.
CHARACTERISTICS OF CERTIFICATION OF PEDAGOGICAL AND MEDICAL WORKERS
Authors:   Rostov State Medical University, Rostov-on-Don, Russian Federation, Kobzeva N.D. , Durov R.S. ,   Don State Technical University, Rostov-on-Don, Russian Federation, Varnakova E.V ,   Don State Technical University, Rostov-on-Don, Russian Federation, Kobzev K.O. ,   Don State Technical University, Rostov-on-Don, Russian Federation
Published: November 2020

The article presents the results of a study aimed at a comparative analysis of the types of certification of pedagogical and medical workers in the relevant institutions. There is a description of the characteristic features of employee certification. The reasons for passing, terms, form of testing and possible results of testing are presented.In conclusion, the main purpose of certification is formulated, as well as its role for prospective employees.The author identifies a problem and a possible solution to improve the effectiveness of employee certification
THEORETICAL MODEL OF INCREASED RESOURCE UPGRADED DOUBLE DISC COULTERS GRAIN DRILL
Authors:   Stavropol State Agrarian University, Stavropol, Russian Federation, Lebedev A.T. , Notov R.A. ,   Stavropol State Agrarian University, Stavropol, Russian Federation, Iskenderov R.R. ,   Stavropol State Agrarian University, Stavropol, Russian Federation
Published: November 2020

Existing agro-technical terms put agricultural enterprises in a situation where they are forced to wait for the necessary physical properties of soils before starting sowing work. The use of ultra-high molecular weight UHMWPE polyethylene for the modernization of the design of disc coulters can extend the time interval in which the sowing process will take place without disrupting its performance.
POSSIBILITIES OF APPLYING MACHINE VISION TO INCREASE EFFICIENCY OF FUNCTIONING OF A GRAIN-CLEANING MACHINE
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Butovchenko A.V. , Kravchenko L.V. ,   Don State Technical University, Rostov-on-Don, Russian Federation, Koltsov A.F. ,   Don State Technical University, Rostov-on-Don, Russian Federation, Parasyuk Y.V. ,   Don State Technical University, Rostov-on-Don, Russian Federation
Published: November 2020

The article provides a rationale for the use of machine vision systems on grain cleaning machines. The paper presents the dependence of the purity of the grain material, the content of weed and grain impurities, the loss of grain material relative to the feed in kg / s. In addition, the article provides an overview of the most used systems for detecting volumetric objects, and histograms of the most significant characteristics of the systems under consideration are constructed.
AGROTOURISM AS A UNIQUE TOURIST PRODUCT
Authors:   Rostov State University of Economics, Rostov-on-Don, Russian Federation, Logvinova V.A. , Prokopetc T.N. ,   Rostov State University of Economics, Rostov-on-Don, Russian Federation
Published: November 2020

The article presents a study of the features of agricultural tourism as a type of domestic tourism. An analysis of the prevailing successful models of agritourism in the world that can serve as an experience for creating a Russian model of this tourism product is presented in a visual form. The tasks that agricultural tourism is called to solve in the socio-economic and cultural spheres of the Russian Federation are disclosed and the main problems in solving these problems are highlighted.
THE STUDY OF THE STABILITY OF THE RECTILINEAR MOVEMENT OF THE COMBINE HARVESTER RELIABILITY
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Manshin Y.P. , Manshina E.Y. ,   Don State Technical University, Rostov-on-Don, Russian Federation, Sidelnik-Rubanova Y.V. ,   Don State Technical University, Rostov-on-Don, Russian Federation
Published: November 2020

This article studies the main tasks of designing the structures of the mechanism for moving agricultural machines that determine the energy costs of movement, maneuvering and the ability to maintain rectilinear movement at a given rate for tracked vehicles controlled through friction clutches.
Colletotrichum Gloeosporioides Species Complex: Pathogen Causing Anthracnose, Gummosis and Die-Back Diseases of Cashew (Anacardium Occidentale L.) In Ghana
Authors: Muntala A. , Norshie P. M. , Santo K. G. , Saba C. K. S.
Published: November 2020

A survey was conducted in twenty-five cashew (Anacardium occidentale) orchards in five communities in the Dormaa-Central Municipality of Bono Region of Ghana to assess the incidence and severity of anthracnose, gummosis and die-back diseases on cashew. Cashew diseased samples of leaves, stem, inflorescences, twigs, flowers, nuts and apples showing symptoms (e. g. small, water-soaked, circular or irregular yellow, dark or brown spots or lesions on leaves, fruits and flowers, sunken surface, especially on the apples, blight, gum exudates) were collected for isolation of presumptive causative organism. The pathogen was isolated after disinfecting the excised diseased pieces in 70% ethanol, plated on potato dextrose agar (PDA) and incubated at 28 oC for 3 to 7 days. The identity of the putative pathogen was morphologically and culturally confirmed as belonging to Colletotrichum gloeosporioides species complex using standard mycological identification protocols. The pathogen had varied conidia sizes of between 9-15 up to 20 μm in length and diameter of 3-6 μm. The conidia were straight and cylindrically shaped with rounded or obtuse ends. The septate mycelium was whitish-grey, velvety and cotton-like in appearance from the top. The results confirmed the presence of the pathogen in the orchards with incidence ranging from 6.9% and 14.0% for gummosis and averaged 22.9% for anthracnose infected orchards. The result of the pathogenicity test confirmed the isolates to be pathogenic on inoculated cashew seedlings and were consistently re-isolated, thereby establishing the pathogen as the true causal agent of the said diseases in cashew trees and thus completed the Koch’s postulate.
Retroperitoneal Tuberculosis in Pregnancy: A Case Report and Literature Review
Authors: Mateo-Mosquera Lara María , Martínez-Braña Lucía , Beceiro-Abad María Carmen , García-Figueiras Roberto , González-Quintela Arturo , Díaz-Peromingo José Antonio
Published: November 2020

Tuberculosis is and infectious disease that can affect multiple organs and systems. It can involve the almost the whole body including the abdomen. Retroperitoneal involvement is uncommon, especially during pregnancy. We report the case of a pregnant woman with a retroperitoneal mass whose final diagnosis was tuberculosis, focusing on the timing and difficulties to ensure the diagnosis.
Pemberdayaan Asupan Rendah Kalori dan Aktivitas Fisik Mahasiswa Obesitas FK UPN Veteran Jakarta
Authors: Simanjuntak Kristina , Saleh Arman Yurisaldi , Purwani Luh Eka
Published: November 2020

Obesitas disebabkan karena asupan kalori melebihi dari pengeluaran energi yang mengakibatkan penumpukan lipid di jaringan adipose dengan IMT > 25 kg/m2. Obesitas penyebab kematian terbesar di seluruh dunia akibat terjadinya komplikasi sejumlah penyakit kronis diabetes melitus tipe-2, penyakit kardiovaskular, dan kanker. Tujuan abdimas ini, pemberdayaan asupan rendah kalori dan aktivitas fisik dapat menurunkan obesitas. Metode yang dilakukan adalah identifikasi masalah, mengukur IMT dan pemeriksaan kolesterol dari 30 mahasiswa Fakultas Kedokteran UPN Veteran Jakarta sebagai mitra. Identifikasi pola makan menggunakan kuesioner Dietary History Methods dan aktivitas fisik. Kemudian diberikan penyuluhan pengetahuan obesitas menggunakan PPT secara online. Hasilnya menunjukan mahasiwa overweight 53 % dan obesitas 47 %. Pola makan tinggi kalori makan nasi 1-3 kali perhari 98 %, kue manis 81 %, minuman manis 76,7 %, gorengan 68 %, daging rendang 50 %), sayuran 30 % dan buah 38 %. Aktivitas fisik termasuk ringan berupa (maen hp 65 %, jalan kaki 20 %, duduk ngerumpi 45 %). Setelah pemberian pengetahuan bagi mahasiswa, dengan porsi makan satu piring berisi 50 % sayur dan buah, serta 50 % sisanya karbohidrat dan protein ditambah aktivitas fisik 30 menit/hari diharapkan dapat menurunkan obesitas (penurunan IMT dan kolesterol darah).
Peningkatan Kualitas dan Kemasan pada Kelompok Usaha Kerupuk Ikan di Desa Bendar Kecamatan Juwana Kabupaten Pati
Authors: Prasetyowati Dina , Rasiman Rasiman , Minarti Ipah Budi , Setiawan David Firna
Published: November 2020

Desa Bendar dikenal sebagai desa Nelayan karena mayoritas penduduk Desa Bendar adalah nelayan dengan jumlah sebesar 55,7% atau 880 orang. Root of problem yang dihadapi oleh Desa Bendar, Kecamatan Juwana, Kabupaten Pati adalah banyaknya hasil tangkapan ikan para nelayan serta sumber daya manusia yang belum terberdayakan secara maksimal, sehingga belum dapat meningkatkan kesejahteraan masyarakat baik secara kelompok maupun individu di Desa Bendar. Mitra dalam pengabdian ini adalah Kelompok Usaha Bersama (KUB) Mina Melati. Dalam menjalankan usahanya, KUB Kerupuk Ikan Mina Melati masih menerapkan manajemen tradisional. Rendahnya pengetahuan anggota KUB Kerupuk Ikan Mina Melati menjadi salah satu penyebabnya terutama dalam hal proses produksi dan pengolahan kerupuk yang baik dan manajemen pengelolaan usaha. Kegiatan yang dilaksanakan pengabdian ini adalah Seminar Tata Cara Mendapatkan PIRT dan Sertifikasi Layak Higienis, Uji Lab Kandungan Bahan Makanan Kerupuk, Perijinan PIRT untuk KUB Kerupuk Ikan Mina Melati, Pelatihan Desain Label Kemasan Kerupuk, Pelatihan Packaging. Dengan adanya program pengabdian ini diharapkan KUB Mina Melati dapat menghasilkan produksi kerupuk ikan yang higienis dan memiliki nilai jual yang tinggi. Apabila nilai jual dari hasil pengolahan kerupuk ikan tinggi, maka penghasilan warga akan meningkat, dan selanjutnya memberi dampak kepada peningkatan kesejahteraan masyarakat Desa Bendar dan menjadikan Desa Bendar sebagai Desa Sentra Kerupuk Ikan.