bluuebunny/crossref_metadata_2025 huggingface dataset:
Why Do Women Delay in Seeking Prenatal Care? A Discrete-Time Survival Analysis
Authors: Abrokwah Ama A. , Abrokwah Stephen O.
Published: March 2021

This paper evaluates the effect of access to the Ghana national health insurance on the timing of the first prenatal care visit for pregnant women after controlling for other factors. Due to the voluntary nature of the national health insurance program, insurance status is likely endogenous, this paper therefore uses the Multilevel Multiprocess (MLMP) model and the Mixed Proportional Hazard (MPH) model estimation techniques, which controls for endogeneity in survival data analysis. Results from the estimation shows that access to insurance reduces the delays in receiving prenatal care, and increases the probability of seeking prenatal care.
Philosophical Aspects of Understanding Ev il in Taoism: Civilization Approach
Authors:   Saint-Petersburg State University, Aleksandrov A.I. , Kovalev A.A. ,   Russian Presidential Academy of National Economy and Public Administration
Published: March 2021

Philosophical aspects of understanding evil in Taoism as a synthetic religious and philosophical concept are considered. The concepts of good and evil in the ethical space of Taoism are investigated, some philosophical and cultural parallels of understanding evil in Taoism with similar concepts in world philosophy are revealed. The experience of China as one of the largest states in the Eurasian space is analyzed.
On the Constitutional Permissibility of Electoral Systems
Authors:   Russian Presidential Academy of National Economy and Public Administration, Chervinskaya A.P.
Published: March 2021

The use of electoral systems and the legal regulation of such use in the formation of legislative bodies at all levels of the Russian Federation is analyzed. The experience of foreign countries on the formation of parliaments is considered. The conclusion about the uniqueness of the Russian constitutional decision on the choice of electoral systems in the formation of the Federal Assembly of the Russian Federation is formulated.
Teachers’ Labor Legal Regulation Problems in the Context of the COVID -19 Pandemic
Authors:   Saratov State Academy of Law, Ivanov A.A.
Published: March 2021

Labor relations between teachers and administration of general educational institutions of public education in conditions of the COVID-19 pandemic are studied. The analysis of labor legislation norms, devoted to the organization of teachers’ distance work, is carried out. The legal issues of the regime of work and rest, the amount of wages, the procedure of providing the employee with the necessary technical means, the amount of compensation to teachers for the use of personal property, etc. are considered.
THE FRAMEWORK MODEL OF DIGITAL COOPERATIVE TO EXPLORE ECONOMIC POTENTIAL IN HIGHER EDUCATION
Authors: Hasbullah Hasbullah , Bareduan Salleh Ahmad
Published: March 2021

In February 2020, the Indonesian Ministry of Cooperatives and SMEs noted that in the last four years, 81,686 cooperatives were dissolved, leaving 123,048 active cooperatives. This case is a huge challenge for the government to overcome.  Indonesian Internet Service Providers Association (APJII) stated that the number of internet users in Indonesia reached 196.7 million in the middle of 2020. Meanwhile, data from Google & Temasek showed purchasing products via e-Commerce in Indonesia reached US$ 10.9 billion in 2017 and continuously increased in 2020. Most cooperatives in Indonesia run business conventionally with manual transactions, limited time, traditional logistics, and conventional membership administration. Nowadays, the institution with tens of thousands of members no longer effectively runs cooperative conventionally in a disruptive era. A conventional cooperative at a private university in Jakarta was observed in the study. There are tens of thousands of students and staff at the university. Three research questions arise, such as what can not be adequately solved in a traditional cooperative, what tools are used in digital cooperatives, and what shape can be used in the digital cooperative system model to solve issues. This study proposes a framework model in developing a digital cooperative to accommodate a huge amount of membership and enhance business scope. The research identified technology needed to overcome matters cannot be dealt with in a conventional cooperative. It provided a  digital cooperative frameworks model that impacts value creation, value capture, and value delivery, especially in higher education.
Polymeric suspensions viscosity evolution under a constant electric field
Authors:   Département d’Hydraulique, Faculté d’Architecture et de Génie Civil. Université des Sciences et de la Technologie d’Oran Mohamed Boudiaf, USTO-MB, BP 1505, EL M’naouer, 3100 Algérie, Zelifi Ahmed , Mourad Lounis ,   Département des Sciences, Faculté de Technologie. Université de Khemis Meliana, Algérie
Published: March 2021

The present paper illustrates the effect of the coupling of an electric field with a shear field on a suspension ER. When the suspensions are simultaneously under flow and under the influence of a low electric field organized into packed lamellar formations, the shear stress increases with the increase of the higher polarisable particle concentration both in the electrostatic and hydrodynamic forces. In the absence of an electric field, the flow, alone, produces no segregation.The curves obtained after analyzes illustrate the changes on the shear viscosity under the simultaneous effect of an electric field and shear rate of the three suspensions study. We also observed the appearance of a white foam layer at the experimental apparatus which results in the electrochemical phenomenon due to some values of electric field. The latter can be exploited for a possible further research.
Etude du régime alimentaire de quelques espèces de Mantodea dans les conditions naturelles de la vallée du M’Zab (Sahara septentrional Est-Algérien)
Authors:   Laboratoire de Protection des Écosystèmes en Zones Arides et Semi-arides Université d’Ouargla, 3000 Ouargla, Algérie, Mohamed Tartoura , Raouf Korechi ,   Laboratoire de Protection des Écosystèmes en Zones Arides et Semi-arides Université d’Ouargla, 3000 Ouargla, Algérie, Abdellah Kemassi ,   Laboratoire de Protection des Écosystèmes en Zones Arides et Semi-arides Université d’Ouargla, 3000 Ouargla, Algérie,   Laboratoire de Mathématiques et Sciences Appliquées Université de Ghardaïa. BP 455 Ghardaïa-Algérie, Didi Ould El Hadj ,   Laboratoire de Protection des Écosystèmes en Zones Arides et Semi-arides Université d’Ouargla, 3000 Ouargla, Algérie
Published: March 2021

Le régime alimentaire de cinq espèces de Mantodeacapturées dans différents biotopes de la vallée du M’Zab (Nord du Sahara Algérien) est étudié. Il s’agit de MantisreligiosaLinnaeus., 1758;SphodromantisviridisForskal., 1775, BlepharopsismendicaFabricius., 1775;Iris oratoriaLinnaeus., 1758;EmpusagutullaThunberg., 1815et AmblythespisgranulataSaussure, 1870.La reconnaissance et l'identification des espèces proies contenues dans les fèces des mantes,a permis de dénombrer 27 espèces d’Arthropoda appartenant à 08 catégories d’ordre et 11 familles trophiques. Une prédominance desformicidae (18%)est enregistrée.La prédation chez M. religiosa, S. viridis, I. oratoria, B. mendica,Empusagutulla et A. granulatas’est manifestée visiblement à partir du mois de mai jusqu’au mois de décembre 2014. Elle atteint son maximum en juillet avec 19 espèces. Ce phénomène de prédation s’est incliné dès le mois d’Aout 2014. Mantisreligiosa et Sphodromantisviridis semblent être les espèces de mantes les plus voraces, avec respectivement 51,9%et 48,1%des espèces proies consommées.
First screening of collagen quality in Lebanese archaeological bones
Authors:   Lebanese Atomic Energy Commission - National Council for Scientific Research, Beirut, Lebanon, Baydoun Rana , El Morr Ziad ,   Lebanese Atomic Energy Commission - National Council for Scientific Research, Beirut, Lebanon
Published: March 2021

Radiocarbon dating is a crucial tool for studying national cultural heritage and reconstructing ancient human history. Uncalcined bones, alongside seeds and charcoal, are one of the most reliable materials to be dated, and more precisely the collagen which constitutes around 30% by weight of the whole bone. However, this collagen may not be well preserved due to the effect of physical and chemical properties of the burial environment. Radiocarbon dating of low-collagen bones could be costly, time consuming and cause destruction of valuable archaeological samples without getting reliable ages. Many techniques were developed to test the state of collagen in bone samples. In this work, an Elemental Analyzer was used on twenty-one bone samples to determine %N, C/N ratio and to calculate %C excess as indicator parameters of collagen preservation. All samples were collected from four coastal Lebanese archeological sites. Percentage nitrogen in 15 samples was below the threshold value 0.7% and hence they were not adequate for radiocarbon dating. The ratio C/N in the majority of the samples was higher than 5 indicating extensive diagenetic alteration or contamination by exogenous carbon. The percentages excess carbon were lower than maximum acceptable values 5-10%. Our results emphasize on the importance of collagen prescreening when dating local bone samples which are in many cases degraded.
Solvent Extraction of Molybdenum from Hydrochloric Acid Solutions with Tri-Octyl Phosphine Oxide: Comparison between Conventional and Microwave-Assisted Extraction Techniques
Authors:   Laboratory of Chemical Engineering –Faculty of Technology -University of Blida 1, B.P. 270, Blida 09000, Algeria), Boucherit Ahmed , Khalaf Hussein ,   Laboratory of Chemical Engineering –Faculty of Technology -University of Blida 1, B.P. 270, Blida 09000, Algeria)
Published: March 2021

In this paper, the solvent extraction of molybdenum from 0.01-1 M aqueous hydrochloric acidusing tri-octyl phosphine oxide (TOPO) as solvent diluted with n-hexane has been investigated. The extraction efficiencies of TOPO inthe extraction of molybdenum werecarried out using conventional extraction and microwave-assisted extraction (MAE) techniques.Molybdenum extraction efficiency wasdetermined by varying separately the different parameters affecting the extraction process including agitationtime, hydrochloric acid concentration, solventconcentration (in the organic phase), as well as the irradiation time and microwave power.The MAE technique greatly enhanced the solvent extraction of molybdenum where high extraction percentageswere obtained under favorable conditions. In some cases, thepercentages extraction of molybdenum obtained with two methods were comparable.The use of MAE technique also showed obvious advantages in terms of a drastic reduction of the extraction time as it was shortened from 15 min to 10 s in comparison with conventional solvent extraction method.
Línguas sem posse - em direção a um inconsciente menor institucional
Authors: Ribas Cristina Thorstenberg , Cobo-Guevara Paula
Published: March 2021

Como podemos pensar um insconsciente institucional, hoje?; e o que ele nos diz das práticas menores que uma instituição pode abarcar? Pensamos, com esse artigo, que o movimento de instituição e destituição a partir de um inconsciente menor institucional tem mais a ver com um procedimento de passagens, que modifica e arrasta a instituição em direção a um fora. A subjetividade é matéria, é agenciada nesse arrasto, e com os pés no chão, é possível produzir singularidades por contágio e vizinhança. Apontamos como uma saúde menor pode dar passagem a movimentos instituintes, como ela também elabora uma processualidade estética (reconceitualizando afetos na e da arte), e como se pode cartografar seus circuitos, que sempre escapam a intentos de representação. AbstractHow can we think about an institutional unconscious today? And what does it tell us about the minor practices that an institution can embrace? The movement of institution and destitution from a institutional minor unconscious has more to do with a procedure of making-passage, which in itself modifies and drags the institution towards an outside. Subjectivity is matter, it is rearranged in this dragging out, and with your feet on the ground, it is possible to produce singularities through contagion and neighbouring. We point out how a minor health can give way to instituting movements, how it also elaborates a processual aesthetics (reconceptualizing affections in and of art), and how one can map out its circuits, which always escape the intent of representation
REFLEXÕES INICIAIS SOBRE O EROTISMO EM KAFKA À BEIRA-MAR, DE HARUKI MURAKAMI
Authors: Brasil de Sá Michele Eduarda
Published: March 2021

RESUMO: Este artigo apresenta um esforço preliminar de pesquisa sobre o erotismo no romance Kafka à beira-mar do escritor japonês Haruki Murakami. Partindo do pressuposto de que haja uma diferença conceitual entre erotismo e sensualismo na literatura japonesa, busca compreender como ambos se materializam na obra pesquisada. Por fim, reflete sobre a função do erotismo na obra e sobre os perigos de uma interpretação orientalista, que acabe por atrapalhar mais do que auxiliar a leitura do texto. São apresentados alguns excertos do romance a fim de ilustrar as colocações ao longo do artigo. Ninomiya (1999), Paz (1994) e Bataille (1987) servem de fundamentação teórica para as reflexões realizadas.
SERVIDÃO E SUPERAÇÃO: UM ESTUDO ACERCA DA PRESENÇA DA EMPREGADA DOMÉSTICA NA OBRA DE CLARICE LISPECTOR
Authors: De Lima Patrícia Ferreira Alexandre
Published: March 2021

Este estudo tem como objeto a figuração da empregada doméstica na obra de Clarice Lispector, pretende refletir as relações provenientes de um passado escravocrata brasileiro que desemboca na forma como se dá a contratação de empregadas domésticas até hoje. A doméstica está presente em contos e romances de Clarice, e ainda, em crônicas que publicou no Jornal do Brasil. Detivemo-nos a uma análise mais próxima das domésticas Augusta, do conto “Um dia a menos” e Janair, do romance A paixão segundo G.H. Sabemos que o trabalho doméstico também engloba o gênero masculino, entretanto, nesta abordagem, instituímos como recorte o trabalho doméstico desenvolvido apenas por mulheres por dois motivos: o primeiro está ligado a própria figuração na obra de Clarice, em que as personagens são do sexo feminino, o segundo se refere ao fato de o trabalho doméstico ser realizado majoritariamente por mulheres. Esperamos, desta forma, por meio da abordagem da obra de uma escritora que foi tantas vezes cobrada por não ter uma escrita engajada socialmente, contribuir para o debate acerca das relações que precarizam e desvalorizam o trabalho doméstico no Brasil.
Free fatty acid composition of Ramaria aurea (Schaeff.) Quél.
Authors: Miltojevic Ana , Milovanovic Ivan , Radulovic Niko
Published: March 2021

Ramaria aurea (Schaeff) Qu?l., known as the golden coral, is an edible
mushroom with a worldwide distribution, but there are scarce data on its
chemical composition. Free fatty acids (FAs) from this fungal species have
never been analyzed before, although it is known that FAs are linked with
key physiological and biochemical processes, and thus, they essential for
the proper functioning of various ecosystems. Moreover, there are no
literature data on the chemical composition of R. aurea from Serbia. Herein,
we report on the GC-MS characterization of a diethyl-ether extract of R.
aurea fruit bodies collected in the region of Mt. Mali Jastrebac (central
Serbia), with the focus on the free FAs profile, investigated using a method
of FA derivatization by diazomethane. The GC-MS analysis enabled the
identification of around 60 components, among which more than a half were
methyl esters of saturated and unsaturated FAs, comprising 88% of the total
extract. The rather diverse and complex free FA profile of R. aurea was
dominated by monounsaturated FAs (ca. 35% of the total extract) with oleic
acid as the most abundant constituent (ca. 34%). Polyunsaturated and
saturated FAs were present in almost equal amounts, ca. 26% and 24%,
respectively. The major polyunsaturated FA was linoleic (ca. 26%), while the
principal saturated FA was palmitic acid (ca. 15%). The content of total
saturated and mono- and polyunsaturated FAs, as well their ratio, could be
used as an indicator of the potential nutritional and medicinal use of this
mushroom.
Glycemic Outcome Associated With Insulin Pump and Glucose Sensor Use in Children and Adolescents With Type 1 Diabetes. Data From the International Pediatric Registry SWEET
Authors: Cardona-Hernandez Roque , Schwandt Anke , Alkandari Hessa , Bratke Heiko , Chobot Agata , Coles Nicole , Corathers Sarah , Goksen Damla , Goss Peter , Imane Zineb , Nagl Katrin , O’Riordan Stephen M.P. , Jefferies Craig
Published: March 2021

OBJECTIVE

Insulin delivery methods, glucose-monitoring modalities, and related outcomes were examined in a large, international, diverse cohort of children and adolescents with type 1 diabetes from the Better Control in Pediatric and Adolescent Diabetes: Working to Create Centers of Reference (SWEET) -Registry.

RESEARCH DESIGN AND METHODS

Participants with type 1 diabetes of ≥1 year, aged ≤18 years, and who had documented pump or sensor usage during the period August 2017–July 2019 were stratified into four categories: injections–no sensor (referent); injections + sensor; pump–no sensor; and pump + sensor. HbA1c and proportion of patients with diabetic ketoacidosis (DKA) or severe hypoglycemia (SH) were analyzed; linear and logistic regression models adjusted for demographics, region, and gross domestic product per capita were applied.

RESULTS

Data of 25,654 participants were analyzed. The proportions of participants (adjusted HbA1c data) by study group were as follows: injections–no sensor group, 37.44% (8.72; 95% CI 8.68–8.75); injections + sensor group, 14.98% (8.30; 95% CI 8.25–8.35); pump–no sensor group, 17.22% (8.07; 95% CI 8.03–8.12); and pump + sensor group, 30.35% (7.81; 95% CI 7.77–7.84). HbA1c was lower in all categories of participants who used a pump and/or sensor compared with the injections–no sensor treatment method (P < 0.001). The proportion of DKA episodes was lower in participants in the pump + sensor (1.98%; 95% CI 1.64–2.48; P < 0.001) and the pump–no sensor (2.02%; 95% CI 1.64–2.48; P < 0.05) groups when compared with those in the injections–no sensor group (2.91%; 95% CI 2.59–3.31). The proportion of participants experiencing SH was lower in pump–no sensor group (1.10%; 95% CI 0.85–1.43; P < 0.001) but higher in the injections + sensor group (4.25%; 95% CI 3.65–4.95; P < 0.001) compared with the injections–no sensor group (2.35%; 95% CI 2.04–2.71).

CONCLUSIONS

Lower HbA1c and fewer DKA episodes were observed in participants using either a pump or continuous glucose monitoring (CGM) or both. Pump use was associated with a lower rate of SH. Across SWEET centers, use of pumps and CGM is increasing. The concomitant use of pump and CGM was associated with an additive benefit.
Cardiovascular, Renal, and Metabolic Outcomes of Dapagliflozin Versus Placebo in a Primary Cardiovascular Prevention Cohort: Analyses From DECLARE-TIMI 58
Authors: Cahn Avivit , Raz Itamar , Leiter Lawrence A. , Mosenzon Ofri , Murphy Sabina A. , Goodrich Erica L. , Yanuv Ilan , Rozenberg Aliza , Bhatt Deepak L. , McGuire Darren K. , Wilding John P.H. , Gause-Nilsson Ingrid A.M. , Langkilde Anna Maria , Sabatine Marc S. , Wiviott Stephen D.
Published: March 2021

OBJECTIVE

International guidelines propose prescribing sodium–glucose cotransporter 2 (SGLT2) inhibitors to patients with type 2 diabetes (T2D) as secondary prevention in patients with established atherosclerotic cardiovascular disease (ASCVD) or for primary prevention of cardiovascular events in high-risk patients with multiple risk factors (MRF) for ASCVD. The current analyses expand on the cardiovascular renal and metabolic effects of SGLT2 inhibitors in MRF patients.

RESEARCH DESIGN AND METHODS

In DECLARE-TIMI 58, 17,160 patients with T2D and MRF (59.4%) or established ASCVD (40.6%) were randomized to dapagliflozin versus placebo; patients were followed for a median of 4.2 years. The cardiovascular and renal outcomes in the MRF cohort were studied across clinically relevant subgroups for treatment effect and subgroup-based treatment interaction.

RESULTS

Among patients with MRF, the reduction with dapagliflozin in risk of cardiovascular death or hospitalization for heart failure (CVD/HHF) (hazard ratio [HR] 0.84, 95% CI 0.67–1.04) and the renal-specific outcome (HR 0.51, 95% CI 0.37–0.69) did not differ from that for patients with ASCVD (Pinteraction 0.99 and 0.72, respectively). The effect on CVD/HHF was entirely driven by a reduction in HHF (HR 0.64, 95% CI 0.46–0.88). The benefits of dapagliflozin on HHF and on the renal-specific outcome, among the subset with MRF, were directionally consistent across clinically relevant subgroups. At 48 months, HbA1c, weight, systolic blood pressure, and urinary albumin–to–creatinine ratio were lower with dapagliflozin versus placebo and estimated glomerular filtration rate was higher (P < 0.001).

CONCLUSIONS

In patients with T2D and MRF, dapagliflozin reduced the risk of HHF and adverse renal outcomes regardless of baseline characteristics. These analyses support the benefit of dapagliflozin for important outcomes in a broad primary prevention population.
Cardiovascular and Renal Disease Burden in Type 1 Compared With Type 2 Diabetes: A Two-Country Nationwide Observational Study
Authors: Kristófi Robin , Bodegard Johan , Norhammar Anna , Thuresson Marcus , Nathanson David , Nyström Thomas , Birkeland Kåre I. , Eriksson Jan W.
Published: March 2021

OBJECTIVE

Type 1 diabetes (T1D) and type 2 diabetes (T2D) increase risks of cardiovascular (CV) and renal disease (CVRD) compared with diabetes-free populations. Direct comparisons between T1D and T2D are scarce. We examined this by pooling full-population cohorts in Sweden and Norway.

RESEARCH DESIGN AND METHODS

A total of 59,331 patients with T1D and 484,241 patients with T2D, aged 18–84 years, were followed over a mean period of 2.6 years from 31 December 2013. Patients were identified in nationwide prescribed drug and hospital registries in Norway and Sweden. Prevalence and event rates of myocardial infarction (MI), heart failure (HF), stroke, chronic kidney disease (CKD), all-cause death, and CV death were assessed following age stratification in 5-year intervals. Cox regression analyses were used to estimate risk.

RESULTS

The prevalence of CV disease was similar in T1D and T2D across age strata, whereas CKD was more common in T1D. Age-adjusted event rates comparing T1D versus T2D showed that HF risk was increased between ages 65 and 79 years, MI between 55 and 79 years, and stroke between 40 and 54 years (1.3–1.4-fold, 1.3–1.8-fold, and 1.4–1.7-fold, respectively). CKD risk was 1.4–3.0-fold higher in T1D at all ages. The all-cause death risk was 1.2–1.5-fold higher in T1D at age >50 years, with a similar trend for CV death.

CONCLUSIONS

Adult patients with T1D compared with those with T2D had an overall greater risk of cardiorenal disease (HF and CKD) across ages, MI and all-cause death at middle-older ages, and stroke at younger ages. The total age-adjusted CVRD burden and risks were greater among patients with T1D compared with those with T2D, highlighting their need for improved prevention strategies.
Cardiovascular, Renal, and Metabolic Outcomes of Dapagliflozin Versus Placebo in a Primary Cardiovascular Prevention Cohort: Analyses From DECLARE-TIMI 58
Authors: Cahn Avivit , Raz Itamar , Leiter Lawrence A. , Mosenzon Ofri , Murphy Sabina A. , Goodrich Erica L. , Yanuv Ilan , Rozenberg Aliza , Bhatt Deepak L. , McGuire Darren K. , Wilding John P.H. , Gause-Nilsson Ingrid A. M. , Langkilde Anna Maria , Sabatine Marc S. , Wiviott Stephen D.
Published: March 2021

Aims: International
guidelines propose prescribing SGLT-2 inhibitors to patients with type-2
diabetes (T2D) as secondary prevention in patients with established
atherosclerotic cardiovascular disease (ASCVD) or for primary prevention of
cardiovascular events in high-risk patients with multiple risk factors (MRF)
for ASCVD. The current analyses expand on the cardiovascular renal and
metabolic effects of SGLT-2 inhibitors in MRF patients.

Methods: The
DECLARE-TIMI 58 trial randomized 17,160 patients with T2D and MRF (59.4%) or established
ASCVD (40.6%) to dapagliflozin vs. placebo, followed for a median 4.2 years. The cardiovascular and renal
outcomes in the MRF cohort were studied across clinically relevant subgroups for
treatment effect and subgroup-based treatment interaction.

Results:
Among patients with MRF, the reduction with dapagliflozin in risk of
cardiovascular death or hospitalization for heart failure (CVD/HHF; HR 0.84, 95%CI 0.67-1.04) and the
renal-specific outcome (HR 0.51, 95%CI 0.37-0.69) did not differ from patients
with ASCVD (Pinteraction 0.99 and 0.72 respectively). The effect on
CVD/HHF was entirely driven by a reduction in HHF (HR 0.64, 95%CI 0.46-0.88).
The benefits of dapagliflozin on HHF and on the renal-specific outcome, among
the subset with MRF, were directionally consistent across clinically relevant
subgroups. At 48 months, HbA1c, weight, systolic blood-pressure and urinary
albumin:creatinine ratio were lower with dapagliflozin vs. placebo and eGFR was
higher (p<0.001).

Conclusion:
In patients with T2D and MRF,
dapagliflozin reduced the risk of HHF and adverse renal outcomes regardless of
baseline characteristics. These analyses support the benefit of dapagliflozin
on important outcomes in a broad primary prevention population.
Improving safety of interfactory and company motor and electric vehicles by introducing modern digital devices
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Korotkiy А. A. , Bakhteev O. A. ,   Don State Technical University, Rostov-on-Don, Russian Federation, Kostyukov S. S. ,   Don State Technical University, Rostov-on-Don, Russian Federation
Published: March 2021

Introduction. Industrial injuries are one of the most pressing problems in the field of occupational safety at enterprises of the main industries in the Russian Federation. Most cases of such injuries are noted when moving goods and people by means of various types of interfactory transport. A set of regulatory documents developed in recent years by the Government of the country is dedicated to solving this problem. In accordance with the current trends in the development of new technical solutions, the use of a complex of devices based on IT-technologies is effective. This article is devoted to improving the safety of interfactory and company motor and electric vehicles by introducing modern digital devices. Problem Statement. Almost all large industrial enterprises have a need to move goods and personnel both to the place of production activities and within the enterprises. Motor and electric vehicles used for these purposes do not always undergo a maintenance check, they often undergo technical inspection and repairs with whatever funds remains, and always the personnel operating these vehicles do not have permission to drive. Possible accidents with interfactory and company vehicles occurring as a result of insufficient control over the technical condition of vehicles and inadequate or absent medical and administrative checks of the operating personnel can lead to injuries at the enterprise. Theoretical Part. This article proposes methods for reducing traffic accidents of interfactory and company motor and electric vehicles of industrial enterprises and warehouse enterprises through the introduction of remote monitoring of operation based on IT-technologies, operating with the use of mobile applications that use Internet of Things technologies. The options for introducing security elements designed to reduce the number of transport accidents in internal transport of industrial enterprises and warehouse complexes are considered. An experiment was carried out to introduce system components to vehicles of an industrial enterprise. Conclusion. The use of the proposed monitoring and control system for motor and electric vehicles at machine-building enterprises and warehouse complexes will make it possible to quickly resolve issues related to labor protection, the economy of the enterprise and compliance with the labor discipline. In particular, it is planned to reduce vehicle failures due to mechanical failures, as well as to make timely decisions on the removal from driving the drivers who are not feeling well.
Training modules in the formation of risk-based thinking of employees in oil industry
Authors:   Kalashnikov Izhevsk State Technical University, Izhevsk, Russian Federation, Shadrin R. O. , Sevastyanov B. V. ,   Kalashnikov Izhevsk State Technical University, Izhevsk, Russian Federation
Published: March 2021

Introduction. The relevance of the presented work is, first of all, due to the significant number of employees of oil companies. There are more than a million of such specialists working in Russia. At the same time, world statistics claim that more than a third of critical deviations in the health indicators of workers are associated with harmful production factors. In order to avoid the relevant risks, it is important, in particular, to organize productive training in labor safety standards and rules, and to form risk-oriented thinking. Problem Statement. The conducted research is aimed, first, at identifying typical occupational risks in the field of oil production. The Standard Regulation on the Occupational Health and Safety Management System developed by the Ministry of Labor of the Russian Federation is used as the basis for classification. Secondly, the features of modular training in labor safety standards and rules, taking into account the risks in the workplace, are justified. Theoretical Part. The regulatory and legal framework of labor protection, including enterprises with high accident risks, is considered. The paper provides key professions and main labor functions taking into account the production practices of two oil-producing enterprises operating in Russia. The analysis of actual workplaces and regulatory documents allowed us to establish typical occupational risks for the specialties under consideration. The recommendations for improving the system of training in labor safety standards and rules are proposed. Conclusions. Occupational risks are identified from the list of hazards presented in the Standard Regulation on the Occupational Health and Safety Management System. The recommendations for the implementation of the identified occupational risks in the system of training in occupational safety standards and rules are proposed. With this information, you can reduce the time spent on identifying occupational risks in oil production, which generally optimizes the risk management of this field.
Investigation of the Influence of Technological Factors on the Characteristics of Flexible Non-Adhesive Foil Dielectrics
Authors:   LTD «Polikom», Krasnogorsk, Russia, Vorobyov A.V. , Zhora V.D. ,   State Enterprise «Research Institute of Microdevices» STC «IMK» NAS Ukraine, Kiev, Ukraine, Plis N.I. ,   LTD «Angstrem», Moscow, Russia, Timoshenkov S.P. ,   National Research University of Electronic Technology, Moscow, Russia
Published: March 2021

Currently, the traditional use of varnish-foil dielectrics for manufacturing resistors, resistive assemblies and heating elements has been supplemented by their application in production of thermal resistors, the membranes of acoustic and photoelectric transformers. As a rule, the non-adhesive foil dielectrics sustain the affect of high temperatures, permit to significantly increase the density of elements and have better quality characteristics, because the adhesives have negative effect upon the electrical characteristics of the materials, manufactured with their application. Also, the adhesives have comparatively low thermal resistance, which manifests on the total thermal resistance of foil dielectric and the items manufactured on it, especially in case when as a base polyimide is used. In the paper the flexible foil dielectrics for electronic equipment and their manufacturing technology have been considered. The advantages of the non-adhesive foil dielectrics with complete imidization of the polymer base have been shown. The technology of manufacturing the varnish-foil dielectrics, used in manufacturing highly reliable microcircuits of modification 2 and of highly technological membranes of acoustic transformers, has been developed. The polyimide base of the dielectrics has high adhesion to foil and the guaranteed uniformity of the imidization extent 95-100 %. This provides the stability of technological conditions in the process of manufacturing the items from the given materials, as well as an increase of the storage life of the varnish-foil dielectrics up to 12 months.
An Approach to the Formation of Test Sequences Based on the Graph Model of the Cache Memory Hierarchy
Authors:   National Research University of Electronic Technology, Moscow, Russia, Garashchenko A.V. ,   Open Joint-Stock Company Research & Development Center «ELVEES», Moscow, Russia, Gagarina L.G. ,   National Research University of Electronic Technology, Moscow, Russia
Published: March 2021

The verification of the cache memory hierarchy in modern SoC due to the large state space requires a huge number of complex tests. This becomes the main problem for functional verification. To cover the entire state space, a graph model of the cache memory hierarchy as well as the methods of generating the formation of the test sequences based on this model have been proposed. The graph model vertices are a set of states (tags, values, etc.) of each hierarchy level, and the edges are a set of transitions between states (instructions for reading, records). The graph model, describing all states of the cache-memory hierarchy states, has been developed. Each edge in the graph is a separate check sequence. In case of the non-deterministic situations, such as the choice of a channel (port) for multichannel cache memory, it will not be possible to resolve them at the level of the graph model, since the choice of the channel depends on many factors not considered within the model framework. It has been proposed to create a separate instance of a subgraph for each channel. The described approach has revealed, in verification of the multiport cache-memory hierarchy of the developed core with the new vector architecture VLIW DSP, a few architectural and functional errors. This approach can be used to test other processor cores and their blocks
Design Method for a Broadband Quadrature Signal Generator
Authors:   National Research University of Electronic Technology, Moscow, Russia, Chaplygin Yu.A. , Losev V.V. ,   National Research University of Electronic Technology, Moscow, Russia, Kalyonov A.D. ,   National Research University of Electronic Technology, Moscow, Russia; JSC Progress Microelectronics Research Institute, Moscow, Russia
Published: March 2021

There are certain difficulties in the development of a broadband generator of quadrature signals (QSG) on a SiGe BiCMOS technology. The problem of linearity and broadband matching is the most difficult to solve. When designing QSG in a wide frequency band, there is a problem of forming a quadrature signal using traditional solutions using a polyphase filter or a digital D-trigger. The use of only one method for forming a quadrature signal is impossible due to the limiting features of the electronic component base of SiGe BiCMS technology. To solve this problem, we propose a structure that allows us to develop a broadband quadrature signal generator with an operating frequency range from 10 MHz to 6 GHz, using the method of dividing the operating frequency band. At frequencies from 1 to 6 GHz, the quadrature signal is generated using a polyphase filter, and at frequencies less than 1 GHz using a frequency divider. Using this method, the following characteristics of the FCS have been achieved: the difference in the amplitudes of quadrature signals is less than 0.3 dB; the VSWR is less than 1.6 over the entire frequency range; the transmission coefficient is not less than -2 dB at a 0 dBm heterodyne power; at a frequency of 6 GHz P1dB of at least 3 dBm. The experimental results are in good agreement with the simulation data.
Influence of External Radiation on Parameters of Electroluminescent Panel
Authors:   North Caucasian Institute of Mining and Metallurgy (State Technological University), Vladikavkaz, Russia, Urumov V.V. ,   North Ossetian State University Named after Kosta Levanovich Khetagurov, Vladikavkaz, Russia
Published: March 2021

The electroluminescent light source can be used as flexible compact flat sources of uniform illuminating. The studies on improvement of its main characteristics, especially of color intensity generation, continue. In the paper the possibility of using the changing capacitive and current characteristics of flexible light sources - electroluminescent panels to fix and determine the level of external radiation, which includes the near infrared, optical and ultraviolet ranges, has been shown. The degree of the influence of radiation on the capacitive and current characteristics of these structures based on ZnS: Cu, Mn phosphor using a barium titanate ferroelectric has been revealed. During the studies the instrumental and expert analysis as well as the non-destructive and destructive technological control have been used. It has been found that while changing the radiation intensity from 0 to 2500 kd/m the electric capacity of the structure with 600 cm area becomes 25 % increased, and the intensity increase leads to considerable proportional increase (up to 20 %) of the structure conductivity current
Determination of Damping Factors Based on the Measured Frequency Responses of Power Transformer Windings. Part 2. Analysis of Measurement Results
Authors:   FSUE ”RFNC-VNIITF named after Academ. E.I. Zababakhin”, LARIN Vasily S. , MATVEEV Daniil A. ,   NRU «MPEI»
Published: March 2021

In the first part of the article, based on the results of theoretical studies performed for a simplified transformer winding equivalent scheme, it was shown that the damping factors can be estimated from the width of the resonant peaks of the frequency responses of the module and the reactive component of the voltage at the midpoint of the equivalent scheme, as well as the active component of the input admittance and neutral current of the considered resonant scheme. In this part of the article, the practical possibility of applying the obtained theoretical relations between the damping factors and the width of resonant peaks in relation to the frequency responses of power transformer windings is considered. The results of calculations of the damping factors at the two power transformers made by using the fitting of the free component of transient voltage and by determining the width of the resonance peaks of the active component of winding neutral current and the voltage transfer function, corresponding to intermediate points of the winding. It is shown that the evaluation of the values of the winding damping factors can be performed as a byproduct of transformer condition assessment by frequency response analysis (FRA).
The Use of ESA Technique on Reading Comprehension at Mts N Ganting Padang Panjang
Authors: Fidrian Nanda
Published: March 2021

The researcher aimed to conduct this research due particular in students reading comprehension at Mts N Ganting Padang Panjang. The researcher found the problems that first, students interest in reading a text was still lacking. Second, students still have difficulty in reading comprehension. Third, students had a lack of vocabularies in translating the meaning of the word. Therefore, this research is to know how the teacher applies the ESA technique on reading comprehension. The research aimed to analyze teacher apply ESA technique on reading comprehension. This research used a descriptive qualitative research design. The object of this research were two English teachers in Mts N Ganting Padang Panjang. The instruments of this research were questionnaire and interview. The result of the research showed that ESA technique is suitable and effective for reading comprehension that can be seen from teacher apply ESA technique on reading comprehension. Engage, in this elements the teacher motivate students and active their background knowledge. The study, in this elements teacher, focus on the topic in the text and guide students in understanding the content of the text. Activate, in this elements teacher gives exercises and assignment to students, then concludes the contents of the text that has been learned.
Aktualne kierunki restrukturyzacji gospodarki na Ukrainie
Authors: Szurgot Bogdan
Published: March 2021

Ukraina ma obecnie powiązania ekonomiczne ze 150 państwami, m.in. Niemcami, Chinami, USA, Szwajcarią, Włochami, Polską. Jednak najważniejszymi partnerami Ukrainy są nadal państwa wyodrębnione z byłego ZSSR, a w pierwszej kolejności Rosja. Taki charakter powiązań ekonomicznych spowodowany jest sprowadzaniem na Ukrainę ropy naftowej i gazu, co w dużym stopniu wpływa na fakt, że ponad 60% obrotu towarowego przypada na państwa byłego ZSSR, głównie na Rosję. Dlatego obecny stan gospodarki Ukrainy utrudnia jej ekspansję na rynek światowy i kraj ten pozostaje przede wszystkim eksporterem surowców. Eksport produktów „wysokiej technologii” obejmuje od 10 do 20% wartości ogólnego eksportu, podczas gdy w krajach ekonomicznie rozwiniętych wynosi ponad 50%.
MEMBANGUN KARAKTER ILMIAH
Authors: Habibi Habibi
Published: March 2021

Penguasaan ilmu pengetahuan dan teknologi merupakan syarat mutlak bagi perkembangan dan kemajuan suatu bangsa saat ini. Penguasaan tersebut terutama tidak terletak pada kemampuan untuk menggunakan teknologi atau mengenal berbagai teori yang dihasilkan oleh para ilmuwan melainkan lebih penting pada kemampuan untuk melakukan proses dan memiliki karakter ilmiah itu sendiri. Kondisi masyarakat Indonesia secara riil maupun dalam catatan hasil survey lembaga dunia masih berada pada peringkat yang rendah sehingga harus benar-benar fokus pada pembangunan karakter keilmuan. Pembangunan karakter ini harus dimulai dari aspek yang sangat fundamental yaitu pada budaya membaca dan berdiskusi (dialektika).
Narrativas sobre a Universidade Federal de Goiás em Catalão 1986-2002
Authors: Honório Filho Wolney , Pires Ana Paula Dias
Published: March 2021

A criação de novas universidades no Brasil é um tema pouco estudado na história da educação brasileira. E uma lacuna que se abre nesse campo do conhecimento é quem são essas universidades. O objetivo deste texto é historicizar a UFG/CAC, a partir da seguinte questão: como a UFG/CAC é tratada nas narrativas constituídas tanto pelas atas de reuniões, quanto pelos professores que atuaram na instituição, no período de 1986 a 2002? A metodologia utilizada foi a pesquisa com fontes escritas, atas de reuniões, e fontes orais, entrevistas com professores da UFG/CAC. Como resultados, percebemos que a busca pela autonomia universitária é uma luta histórica da UFG em Catalão, traduzida em ações em prol da dedicação exclusiva, licença para a pós-graduação etc.
Necropolítica y capitalismo gore en la región del Pacífico sur colombiano
Authors: Pazos-Cárdenas Mateo
Published: March 2021

Este artículo propone analizar algunos aspectos del panorama actual del pacífico sur colombiano bajo la luz de los conceptos de “necropolítica” (acuñado por el intelectual camerunés Achille Mbembe) y “capitalismo gore” (desarrollado por la filósofa mexicana Sayak Valencia). La metodología utilizada para la recolección de la información analizada consistió en un trabajo de campo etnográfico realizado durante cinco meses en siete municipios del departamento de Nariño, en la región del pacífico sur colombiano. Los desarrollos teóricos de estos dos autores permiten analizar las formas actuales de la violencia desplegada sobre esta región y sus implicaciones en la cotidianidad de los habitantes.
Analisis Total Productive Maintenance Mesin Wrapping Line 4 Menggunkan Overall Equipment Effectiveness dan Six Big Losses di PT XY, Cirebon - Jawa Barat
Authors: Sibarani Ayu Anggraeni , Muhammad Katon , Yanti April
Published: March 2021

PT. XY merupakan salah satu perusahaan yang bergerak di bidang industri makanan, yaitu mie instan. Permasalahan yang dijumpai pada PT XY, yaitu seringnya salah satu mesin produksi mie instan berhenti beroperasi karena terjadinya breakdown. Mesin yang sering mengalami breakdown tersebut adalah mesin Wrapping Line 4 yang merupakan mesin pengemasan untuk produk cup noodle. Hal ini menyebabkan terjadinya waktu henti mesin yang cukup lama sehingga target produksi tidak tercapai. Salah satu pendekatan untuk mengatasi permasalahan tersebut, yaitu dengan Total Productive Maintenance (TPM) yang diukur melalui Overall Equipment Effectiveness (OEE) dan Six Big Losses. Penelitian ini bertujuan untuk menghitung nilai Overall Equipment Effectiveness (OEE), menghitung nilai faktor Six Big Losses dan mengetahui akar penyebab masalah yang dominan dari faktor Six Big Losses dengan fishbone diagram. Hasil perhitungan menunjukkan bahwa nilai OEE pada mesin wrapping line 4 berada di bawah standar internasional, yaitu sebesar 78,03%. Faktor dominan yang menyebabkan rendahnya efektivitas mesin, yaitu quality defect losses sebesar 63,54% dan speed losses sebesar 24,87%.
Pengukuran Kinerja Rantai Pasok Industri Batik Tipe MTO Menggunakan SCOR 12.0 Dan AHP
Authors: Hidayatuloh Syarif , Qisthani Nabila Noor
Published: March 2021

Batik merupakan kerajinan melukis menggunakan media kain. Salah satu jenis batik yang digemari yaitu batik Pekalongan yang mempunyai kekhasan menggunakan hingga delapan jenis warna. Kendala yang dialami IKM Batik Kraton bahwa perilaku konsumen yang berubah-ubah mempengaruhi permintaan produk batik dan secara langsung dapat mempengaruhi proses produksi batik. Perusahaan harus memperhatikan manajemen rantai pasoknya untuk menghasilkan rantai pasok yang bagus. Pengukuran kinerja rantai pasok akan dilakukan untuk mengetahui apakah rantai pasok industri tersebut unggul atau tidak dalam mengelola rantai pasok. Pengukuran kinerja akan melibatkan proses-proses rantai pasok dan metrik indikator. Metode yang digunakan dalam penelitian ini adalah Model SCOR 12.0 dan Analytical Hierarchy Process yang mana untuk tipe proses produksinya yaitu make to order. Hasil dari pengukuran kinerja rantai pasok menunjukan rata-rata nilai 69,39 di mana nilai tersebut termasuk ke dalam kategori average atau sedang. Masing-masing nilai kinerja proses inti, yaitu plan, source, make, deliver, return, dan enable adalah 87,05; 94,25; 68,13; 79,79; 75,47; 11,66. Diketahui bahwa nilai kinerja proses yang tertinggi yaitu source dan yang terendah adalah enable. Indikator-indikator ini menginformasikan bahwa proses rantai pasok di IKM Batik Kraton masih memerlukan perbaikan di beberapa sektor.