Dependence of the mechanical fracture energy of the polymeric composite material from the mixture of filler fractions

This paper for the first time presents an equation for calculating the mechanical fracture energy of the polymeric composite material (PCM) with regard to the basic formulation parameters. By means of the developed computer program the authors calculated the mechanical fracture energy of the polymer binder of the 3D cross-linked plasticized elastomer filled with multifractional silica. The solution of the integral equation was implemented using the corresponding dependence of stress on relative elongation at uniaxial tension. Engineering application of the theory was considered with respect to asphalt road covering. The authors proposed a generalized dependence of ruptural deformation of the polymer binder from the effective concentration of chemical and physical (intermolecular) bonds for calculating the mechanical fracture energy of available and advanced PCMs as filled elastomers

Dependence of mechanical characteristics from composition and structure and optimization of mechanical fracture energy of polymer composite material based on high-molecular rubbers

By means of numerical experiment the authors investigate dependence of conventional rupturing stress and mechanical fracture energy at uniaxial tension from fractional composition of dispersed filler, plasticizer volume fraction in polymer binder, effective density of transverse bonds, applied to development of covering for different purposes and with advanced service life in temperature range from 223 to 323 K. They compare mechanical characteristics of polymer composite materials (PCMs) based on high- and low-molecular rubbers. It was shown that rupturing stress of high-molecular rubber-based PCM is of a higher magnitude than the stress of low-molecular rubber-based one at almost invariable rupturing deformation. Numerical simulation by variation of composition parameters and molecular structure enables evaluation of its maximum fracture energy which is 1000 times higher than mechanical fracture energy of similar composites based on low-molecular rubbers

Эпидемиология бокового амиотрофического склероза в Красноярском крае

Background. Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease that causes paralysis of muscles due to degeneration of motor neurons. According to available data, the incidence of ALS in different regions of the world is from 0.6 to 3.8 per 100,000 population per year. Data obtained during the study of the epidemiology of ALS at the regional level can be used in planning medical resources, in particular, calculating the necessary respiratory equipment and funds for nutritional support.Aim. Clinical and epidemiological analysis of ALS cases registered in the Krasnoyarsk region for the period 2018–2022.Materials and methods. A clinical and epidemiological analysis of ALS cases registered in the Krasnoyarsk region from 2018 to 2022 was conducted. To do this, we used data from the specialized office of neuromuscular pathology of the Regional Clinical Hospital in Krasnoyarsk and the Krasnoyarsk Regional Medical Information and Analytical Center. Diagnosis verification was carried out in accordance with the generally accepted El Escorial and Gold Coast criteria. The functional state and degree of neurological deficit were assessed using the ALS-FRS-R scale.Results. Over the period from 2018 to 2022, 78 cases of ALS were registered. The incidence rate was 0.54 cases per 100,000 population per year. In 2022, the prevalence rate was 1.16 cases per 100 thousand population. The time from symptom onset to diagnosis of the disease ranged from 4 to 57 months, with the average time to diagnosis being 17 months. Most patients were diagnosed with ALS when their ALS-FRS-R score decreased by 7–11 points. The division of patients into groups of rapid, moderate, and slow diagnostic correlates with life expectancy. Patients who are diagnosed quickly have a higher rate of disease progression, which results in a low life expectancy.Conclusion. The creation of specialized centers will improve the diagnosis and management of patients with ALS and plan the costs of palliative care. The increase in the incidence and detection of ALS emphasizes the need to develop new approaches to the treatment and rehabilitation of patients with ALS.Введение. Боковой амиотрофический склероз (БАС) – прогрессирующее нейродегенеративное заболевание, которое вызывает паралич мышц из-за дегенерации моторных нейронов. По имеющимся данным, заболеваемость БАС в разных регионах мира составляет от 0,6 до 3,8 случая на 100 тыс. населения в год. Данные, полученные в ходе изучения эпидемиологии БАС на региональном уровне, могут использоваться при планировании объема медицинских ресурсов, в частности для расчета необходимого респираторного оборудования и средств нутритивной поддержки.Цель работы – клинико-эпидемиологический анализ случаев БАС, зарегистрированных на территории Красноярского края за период 2018–2022 гг.Материалы и методы. Был проведен клинико-эпидемиологический анализ случаев БАС, зарегистрированных в Красноярском крае с 2018 по 2022 г. Для этого использовались данные специализированного кабинета нервномышечной патологии КГБУЗ «Краевая клиническая больница» г. Красноярска и Красноярского краевого медицинского информационно-аналитического центра. Верификация диагноза осуществлялась в соответствии с общепринятыми критериями El Escorial и Gold Coast. Функциональное состояние и степень неврологического дефицита оценивались с помощью шкалы ALS-FRS-R.Результаты. За период с 2018 по 2022 г. было зарегистрировано 78 случаев БАС. Заболеваемость составила 0,54 случая на 100 тыс. населения в год. В 2022 г. показатель распространенности составил 1,16 случая на 100 тыс. населения. Сроки диагностики заболевания варьировали от 4 до 57 мес, среднее время установления диагноза составило 17 мес. У большинства пациентов БАС был диагностирован при снижении оценки по шкале ALS-FRS-R на 7–11 баллов. Разделение пациентов на группы с быстрой, средней и медленной диагностикой коррелировало с ожидаемой продолжительностью жизни. Пациенты, у которых диагноз был установлен быстро, имеют более высокую скорость прогрессирования заболевания, что обусловливает низкую продолжительность жизни.Выводы. Создание специализированных приемов позволит улучшить диагностику и ведение пациентов с БАС и планировать затраты на паллиативную помощь. Растущая заболеваемость и выявляемость БАС подчеркивает необходимость разработки новых подходов к лечению и реабилитации больных БАС

Features of the metabolic syndrome and type 2 diabetes mellitus in schizotypal disorder

To describe the features and mechanisms of development of metabolic syndrome, type 2 diabetes melitus and intermediate states of glycemia in psychosis the occurrence of these disorders, the values of total cholesterol, fractions of high density lipoproteins, very low density lipoproteins, triglycerides, values of atherogenic coefficient, insulinemia, С-peptidemia, insulin resistance the level of glycated hemoglobin in a sample of patients with schizophrenia and in mentally healthy individual

Substantiation of optical criterions of thermal-oxidative stability of lubricating

Research results of criteria of thermal-oxidative stability determined by different combinations of coefficient of absorption of light quantity and optical density with coefficient of evaporation and kinematic viscosity of oxygenated oil are presented. It is shown that the amount of optical density and the coefficient of evaporation divided by coefficient of relative viscosity are the most effective criteria of thermal-oxidative stability of lubricating oils described by second order polynomial with a high correlation coefficient. © Published under licence by IOP Publishing Ltd

Comparison between base metals and platinum group metals in nitrogen, M codoped TiO 2 (M= Fe, Cu, Pd, Os) for photocatalytic removal of an organic dye in water

The photocatalytic performance of a number of nonmetal and metal codoped TiO2 for the degradation of eosin yellow under simulated solar radiation was investigated. The synthesised materials were characterised by FTIR, Raman spectroscopy, XRD, DRUV-Vis, SEM, and TEM.The N, metal codoped TiO2 containing 0.5 wt.% of the metal consisted mainly of the anatase phase, with a particle size range of 15–28 nm. The particles were largely spherical and shifted the absorption edge well into the visible region. Band gap reduction was more pronounced for the N, PGM codoped TiO2 compared to N, base metal codoped samples. Codoping led to an enhancement in the photocatalytic activity of the materials for the degradation of eosin yellow. N, Pd codoped TiO2 was the most effective photocatalyst (99.9% dye removal) while N, Cu codoped TiO2 showed the least activity (25.5% removal). The mechanism for the photocatalytic enhancement was proposed on the basis of formation of an electron deficient Schottky barrier at the semiconductor-metal interface, which acts as an electron sink and thus retards electron-hole recombination. It was shown that the ability of the photocatalyst to degrade the dye depends on the nature and type of the metal dopant in the codoped TiO2 system

mini me swift the first mobile owl reasoner for ios

Mobile reasoners play a pivotal role in the so-called Semantic Web of Things. While several tools exist for the Android platform, iOS has been neglected so far. This is due to architectural differences and unavailability of OWL manipulation libraries, which make porting existing engines harder. This paper presents Mini-ME Swift, the first Description Logics reasoner for iOS. It implements standard (Subsumption, Satisfiability, Classification, Consistency) and non-standard (Abduction, Contraction, Covering, Difference) inferences in an OWL 2 fragment. Peculiarities are discussed and performance results are presented, comparing Mini-ME Swift with other state-of-the-art OWL reasoners

Zygoribatula prima Ermilov & Anichkin 2011, n. sp.

Zygoribatula prima n. sp. (Figures 4 – 6) With characters of Zygoribatula as summarized by Balogh and Balogh (1984, 1992), Grobler (1993), Weigmann (2006). Diagnosis This species is characterized by the following combination of character states: body size 332 – 431 x 199 – 282; notogaster with pair of longitudinal striate bands (each more than half length of notogaster, running from humeral region almost to seta dp, lateral to setae da and dm); anogenital region foveolate; rostrum pointed in dorsoventral view; translamella straight or slightly convex in median part; rostral, lamellar and interlamellar setae setiform, barbed; sensilli clavate, head barbed; 14 pairs of setiform, barbed notogastral setae (setae c 2, da and la longest); areae porosae Aa oblong, A1 oblong or rounded, A2 and A3 rounded. Description Measurements — Body length 415 (holotype), 332 – 431 (mean 381, four paratypes); body width 282 (holotype), 199 – 282 (mean 244, four paratypes). Integument — Body color brown. Notogaster with pair of longitudinal striate bands (each more than half length of notogaster, running from humeral region almost to seta dp, lateral to setae da and dm). Anogenital region foveolate (well visible under high magnification); foveolae rounded (up to 4 in diameter). Prodorsum — (Figure 4A; Figure 5A–E). Rostrum pointed in dorsoventral view. Lamellae slightly longer than half of prodorsum. Translamella straight or slightly convex in median part. Rostral (45 – 53), lamellar (65 – 82) and interlamellar (65 – 82) setae setiform, barbed. Exobothridial setae (24) setiform, thin, barbed. Sensilli (40 – 50) with shorter stalk (16 – 20) and longer head (24 – 30), rounded distally, barbed. Notogaster — (Figure 4A; Figure 5F–M). Dorsosejugal suture complete, convex. Humeral projections slightly developed. Fourteen pairs of setiform, barbed notogastral setae. Setae c 2, da and la longest (36 – 41), setae dm and lm little shorter (28 – 36), setae dp, lp, h 1, h 2 and h 3 short (16 – 20), setae p 1, p 2 and p 3 shortest (12 – 16). Four pairs of areae porosae developed dorsally: Aa oblong (14 – 20 x 6 – 8); A1 oblong (12 – 14 x 6 – 8) or round (diameter 8 – 10); A2 and A3 rounded (diameter 6 – 10).Opisthonotal gland opening and lyrifissures developed in typical arrangement for genus. Lateral part of body — (Figure 5A). Tutorium long. Sublamellar line well-developed. Sublamellar areae porosae rounded (4 – 6), areae porosae Ah oblong (12 – 20 x 4 – 6). Pedotecta I and II small. Discidia triangular. Anogenital region — (Figure 4B; Figure 5N, O). Two pairs anal (4 – 8), three pairs adanal (8 – 12), one pair aggenital (ag, 4 – 6) and four pairs of genital setae (4 – 8) setiform, slightly barbed. Lyrifissures iad in preanal position. Acarologia 51(2): 143–154 (2011) Epimeral region (Figure 4B). Apodemes 2, sejugal, 3 and circumpedal carina well-developed. All epimeral setae setiform, slightly barbed. Setae 1c longest (20 – 24), other setae shorter (8 – 16). Gnathosoma — (Figure 6A–C). Subcapitulum longer than wide: 86 x 71. Hypostomal setae setiform, barbed, h (24 – 32) slightly longer than a and m (20 – 28). Lateral lips with two pairs of adoral setae (8 – 12), setiform, barbed. Palps (length 53) with setation 0-2-1-3-9(+1 ω). All setae (except some on tarsi) barbed. Chelicerae (length 94) chelatedentate; cheliceral setae setiform, barbed, cha (32) longer than chb (20). Legs — (Figure 6D, E). Morphology similar to that in other species of Zygoribatula (Grobler 1993; Bayartogtokh and Smelyansky 2008). Tarsi with three simple claws, median claw obviously thicker than lateral claws. Formulae of leg setation and solenidia: I (1-5(4)-3-4-19) [1-2-2], II (1-5-2-4-15) [1- 1-2], III (2-3-1-3-15) [1-1-0], IV (1-2-2-3-12) [0-1-0]; homology of setae and solenidia indicated in Table 2. Setae l” on femora I absent from some specimens. All setae barbed or with short cilia. Famulus short, straight, blunt-ended. Solenidia ω 1 on tarsi I, ω 1 and ω 2 on tarsi II, σ on genua III rod-shaped; other solenidia setiform. Material examined — Holotype (female), paratypes (four specimens: two females and two males) were obtained from southern Vietnam, 11°25’ N, 107°25’ E, Cat Tien National Park, 149 m above sea level, in dark loamy soil of Lagerstroemia forest, February-March 2009, collected by A.E. Anichkin. Type deposition — The holotype is deposited in the collection of the Zoological Institute of the Russian Academy of Sciences, St. Petersburg, Russia; two paratypes are in the collection of the Center for Biodiversity Resources Education and Development (CEBRED), Hanoi National University of Education, Hanoi, Vietnam; two paratypes are in the personal collection of the first author (Center of Independent Examinations –NN, Nizhniy Novgorod, Russia). Etymology — The specific name " prima " refers to the first identified species of Zygoribatula recorded for Vietnam. Distribution — At present, this species is known only from Cat Tien National Park of southern Vietnam. Comparison — Zygoribatula prima n. sp. can be included in the Zygoribatula species group having a striate notogaster (Z. arcuatissima Berlese, 1916 from Holarctic region, Z. connexa Berlese, 1904 from subtropical region, Z. dactylaris Subías, Ruiz and Kahwash, 1990 from western Mediterranean region, Z. exarata Berlese, 1916 from southern Palearctic region, Z. galula Mahunka, 2001 from Kenya, Z. guadarramica PØrez-˝aeigo, 1978 from Spain, Z. hailongensis Wen and Zhang, 1988 from China, Z. longilinea Wang and Li, 1997 from China, Z. sabulosa Balogh, 1966 from Chad, Z. salina Balogh, 1966 from Ethiopian region, Z. sayedi Elbadry and Nasr, 1974 from Egypt, Z. sculpturata (Mahunka, 1989) from Kenya, Z. smirnovi Bulanova-Zakhvatkina, 1978 from eastern Mediterranean region, Z. socotrensis Mahunka, 2000 from Yemen, Z. tritici Elbadry and Nasr, 1974 from Egypt, Z. vanharteni Mahunka, 2000 from Yemen). However, it clearly differs from others in this group by the distribution of striae; the cuticle is smooth except for a pair of long, narrow bands of striation. In other species, the notogaster is covered completely by striae or they exist only in the humeral regions.Published as part of Ermilov, S. G. & Anichkin, A. E., 2011, TWO NEW SPECIES OF ORIPODOIDEA (ACARI: ORIBATIDA) FROM VIETNAM Sergey G. E and Alexander E. A, pp. 143-154 in Acarologia 51 (2) on pages 148-152, DOI: 10.1051/acarologia/20111998, http://zenodo.org/record/466704