bluuebunny/crossref_metadata_2025 huggingface dataset:
Compreensão da Apreciação de Riscos em Máquinas e Equipamentos
Authors: Ullisses O. Jean  , Alisson D. F. Rosa
Published: May 2022

No cenário industrial cada vez mais automatizado, as máquinas seguem ganhando espaço, trazendo consigo diversos benefícios, porém, trazem ainda novos perigos para os setores de operação. Este trabalho busca detalhar as etapas do processo de apreciação de riscos, definidos pela NBR ISO 12100, determinar sua importância para com a NR12. Apresentando ainda ferramentas para a melhor aplicação da metodologia exigida.Concluiu-se que, pela complexidade da norma de segurança em máquinas e equipamentos, a apreciação de riscos é um processo fundamental para o desenvolvimento de projetos de seguranças em maquinários.
Organization of social counseling for families at risk
Authors: Boldina Marina A. , Deeva Elena V.
Published: May 2022

The aim of the study is to develop a model of organization of social counseling for families at risk. The main reasons for the increase of families at risk are revealed. The problems of families at risk are listed: demographic, medical, housing, social deviation and psychological. Types of counseling for families at risk are distinguished, social counseling is defined as the leading one. The technology of social counseling is presented. It includes the following steps: identifying the reasons that prompted the family at risk to apply for counselling, diagnosing the problem, formulating the problem and setting goals, developing a specific action plan. It is revealed that the organization of social counseling for families at risk is a multi-level system. The federal level is represented by a system of regulation of the activities of social welfare institutions, social pro-grams and projects, and training of specialists. The application of projects, programs and norma-tive-legal acts adopted at the federal level is explained at the regional level along with develop-ment and implementation of a comprehensive program in these programs and projects. A direct application of legislative and regulatory legal acts with families at risk in the conditions of social service happens at the municipal level, as well as studying the reasons for families getting into the “risk group”. The following conclusions are made: an effective method of solving the problems of families at risk is the organization of social counseling; when developing social counseling pro-grams for families at risk social modeling based on systemic, comprehensive and project ap-proaches is used; the model consists of components, the content of which is aimed at solving the problems of families at risk.
From the history of the Tambov Labor Faculty: an attempt at a “didactic revolution”
Authors: Avrekh Aleksander L.
Published: May 2022

Based on the materials of the Tambov Labor Faculty, an attempt at a decisive restructuring of the Soviet sphere of education in the second half of the 1920s is studied by replacing the traditional class-lesson system on a fixed schedule with a free one (Dalton plan), aimed at developing skills for self-building knowledge in the course of “laboratory work”. Based mainly on archival materials introduced into scientific circulation for the first time, the stages of the “struggle” for Dalton are traced, during which it was relatively quickly revealed that it was impossible to introduce a “pure” free system, which exceeded the material organizational and methodological capabilities of the Tambov Labor Faculty, which practiced semi-free (combining classroom and laboratory schemes) system. The gradual increase by the Center requirements for the quality of training in labor faculty and universities showed the impossibility of solving these problems within the framework of Dalton, which led to a return to a modified orthodox didactics.
The problem of the departization of state power in the Russian Federation after 1993
Authors: Volgin Evgeniy I.
Published: May 2022

The purpose of the research is to consider departization of the top executive officials in the Russian Federation after 1993 as a systemic legal and political problem, which in the new his-torical conditions has acquired a slightly different connotation than in the late Soviet years. The subject of the research is contradictions related to the necessity of compliance of the top leaders of the executive bodies of the Russian Federation with the outdated legislative norms and require-ments to departization in the conditions when the objective situation dictated to the government officials and loyal governors the need to consolidate under the auspices of the new “party of power”. Scientific novelty and relevance of the research lies in the almost complete absence of works devoted to the study of the process of departization of the Russian executive power in 1993–1999, based on the consistent application of the principles of historicism, as well as formal and legal, systemic and problem-chronological approaches. The study of this issue allows us to better understand the roots of the contradictions of the modern political system of the Russian Federation. In the course of the study it was concluded that the time from the end of 1993 to 1999 can be considered as a certain transitional period when the society was gradually getting rid of the rudiments of the former one-party dictatorship, and the weakened post-Soviet bureaucracy had no incentives and resources to build a new “vertical of power”. Therefore, the legislation regulating the party and political status of the federal and regional chiefs was not distinguished by its integrity. This circumstance left the question about the prospects of official departization of heads of executive bodies of power.
Patrium amnem: the image of the Nile in Roman art and literature in the late 1st century AD
Authors: Chistalev Mark S.
Published: May 2022

The image of the Nile, formed by Roman authors in the literature of the Flavian era, is compared to the so-called Nilotic scenes embodying a specifically expressed interest in Egyptian culture. It is noted that in relation to the end of the 1st century AD it would be incorrect to say that rhetorical attacks on Egypt, especially inherent of Octavian’s reign, have completely ceased: they continued to exist in parallel with new imperially politicized views, less contemptuous, but in any case emphasizing the importance of the conquest of Egypt. The conclusion is made that for Statius, as well as for Valerius Flaccus, the Nile remains a politicized object, but the focus of political interpretation is shifting from sharp criticism of the otherness of the new province towards rethink-ing the space of the Nile Valley as an integral part of the empire. The Nile is assigned only the role of a link between the events of the distant (mostly mythical) past and the present. At the same time, of the whole variety of plot lines of the Julio-Claudian era, the most stable are the negative motives of the works of Virgil and Lucan. At the same time, the political motives so representative of the literature of the second half of the 1st century AD are not directly reflected in the Nilotic scenes.
THARÎQATU TADRÎSI DINAMINAFSÎ (PSYCHODYNAMIC) WA TATHBÎQUHA FÎ TA’LÎMÎ MAHÂRATIL KALÂMI LI AT THULLÂBI JÂMIAH
Authors: Suaidi Suaidi , Handriawan Dony
Published: May 2022

This research departs from the problem of teaching speaking skills for students ofthe Hamzanwadi Islamic Institute NWDI Pancor. This problem is caused by the factthat there are still teachers who teach speaking skills using reading, translation, andunderstanding nahwiyah rules, and neglecting appropriate and effective speakingskills teaching strategies, such as teaching strategies using innovative and effectivepsychodynamic methods. This study aims to describe psychodynamic strategies inteaching speaking skills for IAI Hamzanwadi NWDI Pancor students. This researchis a case study research with a qualitative approach. The results of this study arepsychodynamic teaching strategies to improve speaking skills of IAI HamzanwadiNWDI Pancor students by instilling motivation, increasing vocabulary andconcocting it as needed, students teaching it to other students, and doing things thatsupport teaching success and avoid things that hinder it. learning success. The roleand benefits of psychodynamic strategies in improving speaking skills are thatstudents have high enthusiasm in learning to speak, perceive that speaking Arabic iseasy and fun, vocabulary is increasing and speaking style continues to develop, themore effective the learning of speaking skills, speaking fluently is. fluent and clear,have integrative motivation, perform productive performance and apply a receptivelearning attitude.
Evaluation of Production Peak of Laying Hens Strain Lohman Brown in CV. Lawu Farm Malang
Authors: Milenia Yolifia Rahma , Madyawati Sri Pantja , Achmad Agung Budianto , Damayanti Ratna
Published: May 2022

Background: The productivity of laying hens is a key measurement in the laying hens business. One of the targets for laying hens is to achieve peak production. The optimal peak production period is necessary to attain the maximum profit. Purpose: To determine the productivity of laying hens strain Lohman Brown aged 25-49 weeks at CV. Lawu Farm Malang Regency as an evaluation of the peak production period. Case Analysis: The descriptive method with the case study technique was used. Primary data were obtained from observations by participating in direct livestock activities, interviews, and documentation, and secondary data were obtained from literature studies. The variables observed in this study were Hen Day Production, Feed Conversion Ratio, egg weight, and mortality. Results: Observation of laying hens productivity in CV. Lawu Farm showed that 71.42% of Hen Day Production value of the full cages had met the target with HDP of more than 92%, while 28.58% did not reach the peak production target by only getting HDP less than 90%. The FCR value was 2.4 – 2.15, the average egg weight wais 63.03 grams/egg, and the mortality was ≤3%. Conclusion: The productivity of laying hens of the Lohman Brown strain aged 24-59 weeks at CV. Lawu Farm has met production standards in terms of HDP, FCR, egg weight, and mortality.
Comparison of Broiler Performance in Closed House and Open House Systems in Trenggalek
Authors: Laili Ana Rohmatul , Damayanti Ratna , Setiawan Boedi , Hidanah Sri
Published: May 2022

Background: According to the Indonesian Central Bureau of Statistics, broiler meat production in 2020 decreased by 6.3% from the previous year. Several factors can influence chicken productivity, one of which is cage management. The cage has a vital role in success because the comfort of the cage will result in maximum chicken productivity. Aim: To compare the productivity of broiler chickens reared using Closed House and Open House cage systems in the same partnership based on the value of Feed Conversion Ratio, Mortality, and Index Performance. Methods: Data collection was carried out using the literature and observative methods, namely direct observation on two farms using a Closed House and an Open House cage system in Trenggalek Regency in April 2021. Results: A FCR value of Closed House system cages has an FCR value of 1.416, whereas the Open House system was 1.605. The mortality of broiler chickens reared in the Open House system was 842, and in the closed house system was 572. The index performance of broiler chickens raised in the Closed House system was 366.5, whereas in an Open House system, the index performance was 319.4. Conclusion: The Feed Conversion Ratio (FCR), Mortality, and Index Performance Index (IP) value of broiler chickens reared in the Closed House system cage was higher than those in the Open House system cage.
Prevention and management of internal hernias after bariatric surgery: an expert review
Authors: Pokala Bhavani , Giannopoulos Spyridon , Stefanidis Dimitrios
Published: May 2022

Internal hernia formation is a feared complication following bariatric surgery. Protrusion of the small bowel through mesenteric defects can result in volvulus presenting with symptoms of bowel obstruction. If left untreated, patients may go on to develop bowel ischemia with possible perforation or necrosis necessitating emergent surgical exploration with resection. In severe cases, extensive bowel resection is required, leading to short-gut syndrome, which can have devastating consequences for the already nutritionally vulnerable bariatric patient. This review presents a comprehensive summary of various surgical techniques and technical factors implicated in the formation of internal hernias. The clinical presentation of patients with internal hernias, appropriate diagnostic work-up, and effective management and treatment strategies are discussed based on the established literature.
Colonoscopy quality and endoscopist factors: what are the required endoscopist conditions for high-quality colonoscopy to reduce colorectal cancer incidence and mortality?
Authors: Sekiguchi Masau , Falkén Ylva , Matsuda Takahisa , Saito Yutaka , Hultcrantz Rolf
Published: May 2022

To maximize the effectiveness of colonoscopy in decreasing the incidence and mortality of colorectal cancer (CRC), high-quality colonoscopy procedures are essential. Considering that the colonoscopy quality varies among endoscopists, it is important to understand the endoscopist factors that influence the colonoscopy quality. In this paper, we reviewed the endoscopist factors related to colonoscopy quality. There are several quality indicators of colonoscopy, among which the adenoma detection rate is the most established indicator with evidence of its correlation with post-colonoscopy CRC. With respect to lesion detectability during colonoscopy, there are other measurements such as the sessile serrated lesion detection rate; however, further evidence on their relationships with post-colonoscopy CRC is needed. Previous studies that have examined the endoscopist characteristics influencing colonoscopy quality have suggested that several factors, including experience, the volume of colonoscopy procedures, and endoscopist specialty, are related to lesion detectability. However, discrepancies exist regarding the studies’ results; in particular, the influence of endoscopist specialty on coloscopy quality is controversial. Some recent studies have demonstrated that endoscopist specialty is not related to lesion detectability when considering confounding factors. Furthermore, it has been reported that nurse endoscopists can provide high-quality colonoscopy after training. It may be possible for endoscopists to improve their colonoscopy quality, regardless of specialty. Training, monitoring, and feedback of colonoscopy quality measurements are useful interventions for endoscopists to ensure high-quality procedures. Owing to the continuous development of endoscopic technologies, it is believed that training is useful for both inexperienced and experienced endoscopists.
Associations between socioeconomic and public health indicators and the case-fatality rate of COVID-19 in sub-Saharan Africa
Authors: Kreienbrinck Annika , Zeeb Hajo , Becher Heiko
Published: May 2022

Aim: To investigate the influence of socioeconomic and public health indicators on the COVID-19 case-fatality rate (CFR) in sub-Saharan African countries. Methods: Ecological study using publicly available, aggregated COVID-19 data, between February 2020 to May 2021, from 46 sub-Saharan African countries. As the outcome of interest, country-specific CFRs were calculated for five 13-week periods. Spatial and temporal distributions of the variables were analysed, and negative binomial regressions with rate ratios (RR) were conducted to estimate the association between socioeconomic and public health indicators with CFR of COVID-19. Results: There were 1.7 million confirmed COVID-19 cases and 29,685 deaths in the 46 sub-Saharan African countries during the investigated time period. The median CFR was between 1% and 2%. A higher human development index (RR = 0.80; 95%CI: 0.63-1.02), higher political stability index (RR = 0.94; 95%CI: 0.90-1.00), higher number of hospital beds (RR = 0.84; 95%CI: 0.73-0.97), and higher population density (RR = 0.85; 95%CI: 0.71-1.01) resulted in a lower CFR. Elevated prevalence of diabetes mellitus (RR = 1.56; 95%CI: 0.99-2.45) and cardiovascular disease mortality (RR = 1.51; 95%CI: 1.04-2.20) were associated with higher CFR. Chronic respiratory disease and handwashing facilities presented little to no effects on COVID-19 CFR. Conclusion: The results draw attention to the vulnerabilities of the sub-Saharan African region which must be considered in the interpretation of our study. Nevertheless, the potential benefits of a lower proportion of pre-existing medical conditions and the young age structure seem to be contrasted by challenges due to socioeconomic and public health factors, which may present possible drivers of CFR on a population level.
Taxonomy of the genus Melinis (Poaceae) in Thailand, with lectotypification of three names
Authors:   Department of Botany, Faculty of Science, Kasetsart University, Chatuchak, Bangkok, 10900, Thailand., Wessapak Paweena , Ngernsaengsaruay Chatchai ,   Department of Botany, Faculty of Science, Kasetsart University, Chatuchak, Bangkok, 10900, Thailand.
Published: May 2022

A taxonomic study of the genus Melinis (Poaceae) in Thailand was conducted. Two species, M. nerviglumis and M. repens, are found with both species being introduced to Thailand. Melinis repens was introduced to Thailand for use as pasture and has become naturalized in all floristic regions as a weed; M. nerviglumis has no record of utilization in Thailand and is recorded from the Northern and North-Eastern regions but was not found during recent field surveys. Morphological descriptions, distribution data, and ecological information are provided; lectotypes are designated for M. bachmannii, M. nyassana and M. villosipes, synonyms of M. nerviglumis. Both species are illustrated and a key to the species, based on morphological characters is provided.
Healthy Life Expectancy in the Context of the United Nations Decade of Healthy Ageing
Authors: Syndyashkina E.
Published: May 2022

The article examines the dynamics of the healthy life expectancy (HALE) in the world, in the WHO European Region and in Russia. It provides cross-country comparisons, revealing the main trends in the dynamics of healthy life expectancy at birth and at older ages. The author notes that the most intense growth in healthy life expectancy can be observed in low-income countries; as wealth increases, growth in healthy life expectancy slows down. The author analyzes the differences in healthy life expectancy between the regions of the Russian Federation. It is noted that the inequality between Russian regions is higher compared to the inequality between groups of low- and high-income countries, between WHO regions, and between countries of the WHO European Region. Russia is one of the countries for which the territorial aspect of inequality in all its manifestations is of great importance. The article discusses various methods for assessing healthy life expectancy, adopted in international and Russian statistics. The study concludes that the HALE indicator used by WHO is optimal for assessing the performance of health systems, for monitoring the health situation of the population. The indicators calculated by Eurostat and Russian statistics are based on the population's self-perceived state of health. Self-perceived health status is essential for assessing the quality of life and determining the need for health care, social services and care, although it is subjective. This is especially important in terms of promoting healthy ageing. The process of population ageing in the world is accelerating more and more. Medical, social, economic, psychological problems associated with the ageing of the population are most acute in economically developed countries. Increasing healthy life expectancy, active longevity, and the development of the ‘silver economy’ are responses to the global demographic challenge of population ageing. Active longevity sets new directions for the development of various spheres of society: medicine, social protection, education and the labour market. At the same time, active longevity creates new types of inequality in these areas, associated with the availability of the necessary resources both at the country level and at the level of population groups and individuals.
Yield Predictions of Four Hybrids of Maize (Zea mays) using Multispectral Images Obtained from RPAS in the Coast of Peru
Authors: Saravia David , Salazar Wilian , Valqui-Valqui Lamberto , Quille-Mamani Javier , Porras-Jorge Rossana , Corredor Flor-Anita , Barboza Elgar , Vásquez Héctor V. , Arbizu Carlos I.
Published: May 2022

Abstract: Early assessment of crop development is a key aspect of precision agriculture. Shortening the time of response before a deficit of irrigation, nutrients and damage by diseases is one of the usual concerns in agriculture. Early prediction of crop yields can increase profitability in the farmer's economy. In this study we aimed to predict the yield of four maize commercial hybrids (Dekalb7508, Advanta9313, MH_INIA619 and Exp_05PMLM) using remotely sensed spectral vegetation indices (VI). A total of 10 VI (NDVI, GNDVI, GCI, RVI, NDRE, CIRE, CVI, MCARI, SAVI, and CCCI) were considered for evaluating crop yield and plant cover at 31, 39, 42, 46 and 51 days after sowing (DAS). A multivariate analysis was applied using principal component analysis (PCA), linear regression, and r-Pearson correlation. In the present study, highly significant correlations were found between plant cover with VIs at 46 (GNDVI, GCI, RVI, NDRE, CIRE and CCCI) and 51 DAS (GNDVI, GCI, NDRE, CIRE, CVI, MCARI and CCCI). The PCA indicated a clear discrimination of the dates evaluated with VIs at 31, 39 and 51 DAS. The inclusion of the CIRE and NDRE in the prediction model contributed to estimate the performance, showing greater precision at 51 DAS. The use of RPAS to monitor crops allows optimizing resources and helps in making timely decisions in agriculture in Peru.
Fatigue Factor Assessment and Life Prediction of Concrete Based on Bayesian Regularized BP Neural Network
Authors: Chen Huating , Sun Zhenyu , Zhong Zefeng , Huang Yan
Published: May 2022

The fatigue life of concrete is affected by many interwoven factors whose effect is nonlinear. Be-cause of its unique self-learning ability and strong generalization capability, the Bayesian regu-larized backpropagation neural network (BR-BPNN) is proposed to predict concrete behavior in tensile fatigue. The optimal model was determined through various combinations of network parameters. The average relative impact value (ARIV) was constructed to evaluate the correla-tion between fatigue life and its influencing parameters (maximum stress level Smax, stress ratio R, static strength f, failure probability P). ARIV results were also compared with other factor as-sessment methods (weight equation and multiple linear regression analyses). Using BR-BPNN, S-N curves were then obtained for the combinations of R=0.1, 0.2, 0.5; f=5, 6, 7MPa; P=5%, 50%, 95%. The tensile fatigue results under different testing conditions were finally compared for compatibility. It was concluded that Smax has the most significant negative effect on fatigue life; the degree of influence of R, P, and f, which positively correlate with fatigue life, decreases suc-cessively. ARIV is confirmed as a feasible way to analyze the importance of parameters and could be recommended for future applications. The tensile fatigue performance of plain concrete under different stress states (flexural tension, axial tension, splitting tension) does not differ sig-nificantly. Besides utilizing the valuable fatigue test data scattered in the literature, insights gained from this work could provide a reference for subsequent fatigue test program design and fatigue evaluation.
Populasi Thrips parvispinus Karny (Thysanoptera: Thripidae) pada bunga tanaman cabai besar di Bali
Authors: Yuliadhi Ketut Ayu , Pratiwi Ni Putu Eka
Published: May 2022

Serangga hama Thrips parvispinus Karny (Thysanoptera: Thripidae) ditemukan paling dominan menyerang tanaman cabai besar. Serangga ini dapat ditemukan pada semua bagian tanaman cabai, terutama pada bunga dan daun. Serangan berat T. parvispinus pada tanaman cabai besar dapat menyebabkan daun mengalami bercak keperakan hingga kecoklatan dan mengeriting ke arah atas sedangkan bunga yang terserang akan layu dan akhirnya gugur. Tujuan penelitian ini untuk mengetahui populasi nimfa dan imago yang menyerang bunga tanaman cabai besar di Desa Sedang Banjar Belang Kecamatan Abiansemal Kabupaten Badung Bali. Analisis dilakukan di Laboratorium Pengelolaan hama dan Penyakit Fakultas Pertanian Universitas Udayana. Metode yang digunakan adalah survei lapangan dan mengambil sampel tanaman secara diagonal. Hasil penelitian menunjukkan bahwa rerata jumlah populasi imago T. parvispinus selalu paling tinggi pada setiap hari pengamatan dibandingkan dengan populasi nimfa pada bunga tanaman cabai besar. Rerata penurunan populasi imago T. parvispinus mulai terjadi pada pengamatan hari ke-5 hingga hari ke-7. Puncak populasi imago tertinggi terjadi pada hari ke-1 (112,5 ekor) dan populasi terendah terjadi pada pengamatan hari ke-7 (60,75 ekor).
Lithological Signatures of Early Carboniferous Events in the Northeastern Siberian Craton (Western Verkhoyansk Region)
Authors: Sennikov N.V. , Khabibulina R.A. , Obut O.T. , Gonta T.V.
Published: May 2022

The paper focuses on presumable sources of coarse carbonate material transported into the Visean Northern Kharaulakh basin. The sand to pebble components of the Krestyakh conglomerate unit originated by medium and distant transport by debris flows (turbidity currents) along submarine canyons from the place of their initial littoral deposition to relatively deep accommodation basins. The carbonate material was most likely derived from Ordovician, Silurian, and Devonian sediments, which are currently represented by their analogs in Kotelny Island. The sediments of the Northern Kharaulakh basin store a record of two geological events: (1) middle Visean collision of Siberia with the Laurussian supercontinent and rifting of some terranes off the Siberian сraton, and (2) late Visean collision of the Kara terrane with the northern margin of Siberia.
Late Mesozoic–Cenozoic Tectonics and Geodynamics of the East Arctic Region
Authors: Sokolov S.D. , Lobkovsky L.I. , Vernikovsky V.A. , Tuchkova M.I. , Sorokhtin N.O. , Kononov M.V.
Published: May 2022

Tectonic and geodynamic models of the formation of the Amerasian Basin are discussed. The Arctic margins of the Chukchi region and Northern Alaska have much in common in their Late Jurassic–Early Cretaceous tectonic evolution: (1) Both have a Neoproterozoic basement and a complexly deformed sedimentary cover, with the stage of Elsmere deformations recorded in their tectonic history; (2) the South Anyui and Angayucham ocean basins have a common geologic history from the beginning of formation in the late Paleozoic to the closure at the end of the Early Cretaceous, which allows us to consider them branches of the single Proto-Arctic Ocean, the northern margin of which was passive and the southern margin was active; (3) the dipping of the oceanic and, then, continental lithosphere took place in subduction zones southerly; (4) the collision of the passive and active margins of both basins occurred at the end of the Early Cretaceous and ended in Hauterivian–Barremian time; (5) the collision resulted in thrust–fold structures of northern vergence in the Chukchi fold belt and in the orogen of the Brooks Ridge. A subduction-convective geodynamic model of the formation of the Amerasian Basin is proposed, which is based on seismic-tomography data on the existence of a circulation of matter in the upper mantle beneath the Arctic and East Asia in a horizontally elongated convective cell with a length of several thousand kilometers. This circulation involves the subducted Pacific lithosphere, the material of which moves along the bottom of the upper mantle from the subduction zone toward the continent, forming the lower branch of the cell, and the closing upper branch of the cell forms a reverse flow of matter beneath the lithosphere toward the subduction zone, which is the driving force determining the surface kinematics of crustal blocks and the deformation of the lithosphere. The viscous dragging of the Amerasian lithosphere by the horizontal flow of the upper mantle matter toward the Pacific leads to the separation of the system of blocks of Alaska and the Chukchi region from the Canadian Arctic margin. The resulting scattered deformations can cause a different-scale thinning of the continental crust with the formation of a region of Central Arctic elevation and troughs or with a breakup of the continental crust with subsequent rifting and spreading in the Canadian Basin.
Current Issues of Tectonics, Paleogeography, Geodynamic Evolution, and Mineral Resources of the Continental Margins of the Russian Arctic
Authors: Vernikovsky V.A. , Shatsky V.S.
Published: May 2022

The special issue is focused on the problems of tectonics, paleogeography, geodynamic evolution, and mineral resources of the continental margins of the Russian Arctic. This topic is relevant, since the knowledge of the geologic structure of the Arctic Ocean and its formation and evolution can solve many global problems of geology and important regional problems, including the formation of oil- and gas-bearing sedimentary basins as well as prospecting for, and development of, diamonds and deposits of nonferrous, noble, rare-earth, and other minerals. In previous issues of Russian Geology and Geophysics, considerable attention was paid to the geology and oil and gas potential of the Arctic. In this special issue, emphasis is placed on the tectonics, stratigraphy, paleogeography, and petrology of the Arctic continental margins of Russia, the development of tectonic and geodynamic models for key structures, and diamond content and metallogeny of Arctic zones of the Siberian Platform, Chukotka, and the Kola Peninsula.
Long noncoding RNA uc007nnj.1 mediates neuronal death induced by retinal ischemia/reperfusion in mice via the miR-155-5p/Tle4 axis
Authors: Feng Yuqing , Lu Jinfang , Peng Xujun , Ge Yanni , Zhang Ran , Li Huiling
Published: May 2022

Retinal ganglion cells(RGCs) apoptosis is a vital manifestation of retinal ischemia/reperfusion(I/R) injury, yet the underlying mechanisms are not well understood. The contribution of long noncoding RNAs(lncRNAs) to this cellular process is currently being explored. Based on a lncRNA chip assay, we aimed to investigate the role of lncRNA uc007nnj.1 in the pathological process of ischemia-induced RGCs apoptosis. Hank’s balanced salt solution containing 10 µM antimycin A and 2 µM calcium ionophore for 2 hours to construct an ischemic model in RGCs, and elevation of intraocular pressure to 120 mm Hg for 1 hour was used to construct a mouse model of retinal I/R injury. In this study, lncRNA uc007nnj.1 was highly upregulated in response to I/R injury in RGCs and mouse retinas. In addition, lncRNA uc007nnj.1 knockdown reduced retinal neuronal cell apoptosis in vitro and in vivo and significantly improved retinal function. Mechanistically, the results demonstrated that lncRNA uc007nnj.1 acts as ceRNA competitively binding miR-155-5p, thereby enhancing the expression levels of Tle4, thus aggravating ischemia-related apoptosis in RGCs. Finally, our study identifies the lncRNA uc007nnj.1/miR-155-5p/Tle4 axis as a potential target for the prevention of I/R-induced retinal neuronal death.
Well-posedness and global attractor of Kirchhoff equation with memory term and thermal effect
Authors: LV Penghui , LIN Guoguang , LV Xiaojun
Published: May 2022

The Kirchhoff equation with thermal effect and memory term is studied. The existence and uniqueness of the solution of the equation are obtained by using the Faedo-Galerkin method. Secondly, the existence of global attractor is obtained by proving the existence of bounded absorption set and the asymptotic smoothness of semigroup. For the first time, this paper comprehensively considers the long-term dynamic behavior of the Kirchhoff model under the simultaneous action of variable coefficients, memory and thermal effects, and promotes the relevant conclusions of the Kirchhoff model. The conclusion of this paper provides a theoretical basis for the subsequent research.
Alternanthera Brasiliana: an Organic Growth Promoter in Poultry
Authors: Ekuma Emmanuel Toochukwu , Oko Augustine Okpani
Published: May 2022

The possible application of aqueous and ethanol leaf-extracts of Alternanthera brasiliana as poultry growth promoters were investigated. Standard methods were used to study the vitamin, mineral and phytochemical contents of the leaves. Seventy-two broilers were grouped into nine of eight birds per treatment. Carcass yield, meat qualities and blood components evaluations were done using standard methods. Results revealed the presence of water-soluble vitamins (B1, B2, B3, B6, B12, C), fat soluble vitamins (A, E, D), minerals and phytochemicals necessary for improving broiler performance. The carcass yield and meat qualities of the test broilers were better than the negative control group. Also, the blood proteins and hematological conditions of the chickens were improved by the extracts better than the negative control group. Communality studies showed that all the blood parameters evaluated were affected by the extracts administered to the broilers. It can therefore, be inferred from the results that leaf-extracts of A. brasiliana could replace chemical growth promoters in poultry production, with the aqueous extracts as a preferred choice, having produced better effects than the ethanol counterpart.
Knockdown of GOLM1 inhibits growth of laryngeal cancer cells via the Wnt/β-catenin pathway
Authors: wang Jiashuo , Wang Sai , Ding Xiaoxu , Hu Yue , Yan Aihui
Published: May 2022

Background Laryngeal squamous cell carcinoma(LSCC) is a common type of malignant tumors of the head and neck. At present, the early biological markers of laryngeal cancer are still the focus of attention by otolaryngologists.Golgi membrane protein 1 (GOLM1) is a transmembrane glycoprotein present in the cis-Golgi complex.In recent years, successive findings have revealed the carcinogenic effects of GOLM1.However, the biological impact of GOLM1 on LSCC has not been clarified.Results In this study, GOLM1 expression was found to be significantly correlated with the progression and prognosis of LSCC. By silencing GOLM1, the Wnt/β-catenin pathway was downregulated, thereby inhibiting cell proliferation, migration, and invasion, as well as the progress of EMT, and promoting TU686 cell apoptosis. Conclusions Our study revealed the influence of GOLM1 through the Wnt/β-catenin pathway on the biological behavior of LSCC. GOLM1 is thus a potential target for the diagnosis and treatment of LSCC.
Cytotoxicity and anti-biofilm activities of biogenic cadmium nanoparticles and cadmium nitrate: a preliminary study
Authors: Adeli-Sardou Mahboubeh , Shakibaie Mojtaba , Forootanfar Hamid , Jabari-Morouei Fereshteh , Riahi-Madvar Soudabe , Ghafari-Shahrbabaki Sima-Sadat , Mehrabani Mitra
Published: May 2022

Cadmium nanoparticles (Cd NPs) were prepared using Artemisia persica extract and microwave irradiation in this research. Cd NPs and Cd (NO3)2 were evaluated for their cytotoxicity, antibacterial, anti-biofilm, and biocompatibility. It was found that Cd NPs (11.2–18.6 nm) had a lower cytotoxic effect than Cd (NO3)2 against both HepG2 and HUVEC cells. The antibacterial activity of Cd NPs against clinically isolated Staphylococcus aureus, Proteus mirabilis, and Pseudomonas aeruginosa was above 2560 μg mL-1. The Cd NPs (640 μg mL-1) decreased the biofilm formation by S. aureus, P. mirabilis, and P. aeruginosa to 24.6%, 31.6%, and 26.4%, respectively. Adding Cd NPs (100 μg/disc) to commercial antibiotic discs increased the antibacterial activity of vancomycin, gentamicin, tetracycline, streptomycin, meropenem, and kanamycin against Methicillin-resistant S. aureus, significantly. The Cd NPs (640 μg mL-1) exhibited low hemolysis activity. More research should be conducted to understand the related cytotoxicity and antibacterial mechanisms of Cd NPs.
Intentional Travel Groups and Social Networks during the COVID-19 Pandemic
Authors: Zhou Mingzhi , Lei Shuyu , Wu Jiangyu , Ma Hanxi , Levinson David , Zhou Jiangping
Published: May 2022

Although face-to-face social contacts decreased during the COVID-19 pandemic, some people remain physically traveling and meeting as a group to gain benefits like sustaining intimacy and increasing productivity. Using multiday continuous smartcard data, we identify intentional group travel patterns in Hong Kong Metro system. Those patterns serve as our proxies for physical (visible) interactions and social (invisible) contact networks among people who intentionally travel as a group (ITGs). We measure the spatial centrality of ITGs and persistent group riders (PGRs), a subset of ITGs remaining active amid the pandemic, to infer different locales' social interactions in the city. By examining the social network formed by ITGs across time, we found that its size and interconnections varied during the pandemic and PGRs might be the most influential vertices in maintaining the networks’ topological properties. The findings could facilitate transit-usage-and-virus-spread modelling and the formulation of more effective pandemic countermeasures in transit-reliant cities.
Protective effect of isoflurane preconditioning on neurological function in rats with HIE
Authors: Wang Yi-Bo , Chen Ting-Bao , Huang-Fu Li-Ren , Zhou Hong-Su , Xiao Qiu-Xia , Fang Xu , Xiong Liu-Lin , Wang Ting-Hua
Published: May 2022

Objective
Hypoxic ischemic encephalopathy (HIE) is an important cause of neonatal death and disability, which can lead to long-term neurological and motor dysfunction. At present, the treatment mainly focuses on the symptomatic treatment in the acute phase and rehabilitation after injury, but the effect is not satisfactory, and more effective methods are urgently needed. Due to the widespread use of inhalation anesthetics in surgery, it has been found that isoflurane (ISO) preconditioning may have a positive effect on neuroprotection. The aim of this study was to investigate the effects of ISO preconditioning on neurological function and behavior in HIE rats.
Methods
Neonatal rats were used to create hypoxic-ischemic (HI) model by ligating the right common carotid artery at 7 days and then in a hypoxia chamber. The effects of anesthetic drugs on neurological function after one hour of ISO preconditioning were assessed after modeling by Morris water maze(MWM), Y-maze, and rotarod tests at one month. Thereafter, samples were taken at 1 and 42 days for Nissl staining and Hematoxylin-Eosin (HE) staining to observe neuronal number and histomorphology changes. The relationship of behaviour and morphology tests were measured.
Results
Ischemia and hypoxia could induce neuronal injury, neurological dysfunction and severe long-term motor function injury. Histological staining and behavioural evaluations were performed to elucidate the pathological changes and neurobehavioural variation after ISO treatment. We found ISO administration significantly reduced the infarct volume of brain tissues and improved the autonomous activities of neonatal rats, ISO preconditioning significantly reduced neuronal apoptosis induced by HI, reduced cerebral infarction volume, improved histopathological damage of nerve cells, improved long-term cognitive function, and attenuated HI-induced Nissl total cells to reduce and reduce long-term spatial memory impairment caused by hypoxia-ischemia during the maturation of injured brain.
Conclusion
ISO preconditioning can protect the brain injury and promote the recovery of neurological function in neonatal rats with HIE, which may be through inhibiting the neuronal cell death in the cortex and hippocampus after HI.
Effects of Tibetan Plateau summer monsoon on glacier change over the Pamir Plateau during 1980-2012
Authors: Zhao Yong , Ren Guoqiang , Yao Junqiang , Meng Lixia
Published: May 2022

The glacier over the Pamir Plateau had received a slight expansion during 1980-2012, which was different from ones over the most of High Asia. Our study revealed the possible influencing mechanism of the Tibetan Plateau summer monsoon on glacier change over the Pamir Plateau. The Tibetan Plateau summer monsoon could both modulate the T2m and precipitation well related the glacier change over the Pamir Plateau via influencing the middle to upper tropospheric temperatures. One possible physical mechanism was identified. The strong Tibetan Plateau monsoon could result in the cooling of middle to upper tropospheric temperatures over central Asia. On the one hand, the cooling of middle to upper tropospheric temperatures caused the decline of 0℃ level height, which slowed down the warming amplitude of T2m over the Pamir Plateau. On the other hand the cooling of middle to upper tropospheric temperatures could strengthened the occurrence of anomalous cyclone over central Asia and the northward transport of water vapor from the Arabian Sea, which were well related to summer precipitation over the Pamir Plateau. Above both suggested that the strong summer Tibetan Plateau monsoon was contributed the expansion of glacier over the Pamir Plateau.
What is the effect of EU’s fuel-tax cuts on Russia’s oil income?
Authors: Gars Johan , Spiro Daniel , Wachtmeister Henrik
Published: May 2022

Following the oil-price surge in the wake of Russia’s invasion of Ukraine, many countries in the EU are cutting taxes on petrol and diesel. Using standard theory and empirical estimates, we assess how such tax cuts influence the oil income in Russia. We find that a tax cut of 20 euro cents per liter increase Russia’s oil profits by around 11 million Euros per day in the short run and long run. This is equivalent to 4100 million Euros in a year, 0.3% of Russia’s GDP or 7% of its military spending. We show that a cash transfer to EU citizens, with an equivalent fiscal burden as the tax cut, reduces these side effects to a fraction.
CD4 and FOXP3 as predictive markers for the recurrence of T3/T4a stage II colorectal cancer: applying a novel discrete Bayes decision rule
Authors: Nakagami Yuki , Hazama Shoichi , Suzuki Nobuaki , Yoshida Shin , Tomochika Shinobu , Matsui Hiroto , Shindo Yoshitaro , Tokumitsu Yukio , Matsukuma Satoshi , Watanabe Yusaku , Iida Michihisa , Tsunedomi Ryouichi , Takeda Shigeru , Fujita Tomonobu , Kawakami Yutaka , Ogihara Hiroyuki , Hamamoto Yoshihiko , Ioka Tatsuya , Tanabe Tsuyoshi , Ueno Tomio , Nagano Hiroaki
Published: May 2022

Background
We recently reported the relapse-free survival (RFS) significance of the combination of CD4+ and forkhead box P3+ (FOXP3) T-cell densities identified by immunohistochemistry in patients with stage I, II, and III colorectal cancer (CRC) who underwent curative resections. This study was designed to determine the optimal combination of markers that predict recurrence in patients with T factors of T3/T4a stage II CRC by applying a novel Bayes decision rule.
Methods
One hundred thirty-seven cancer tissue specimens from T3/T4a stage II patients with 12 clinicopathologic and immune factors were analysed as predictive candidates for recurrence.
Results
Our study showed that the combination of low CD4+ and low FOXP3 T-cell densities resulted in extremely poor RFS prognoses.
Conclusions
Adjuvant chemotherapy may be considered for patients with a combination of low CD4+ and low FOXP3+ T-cell densities. The discovery of this new prognostic indicator is important for the appropriate management of patients undergoing curative resection for T3/T4a stage II CRC.
Retentive strength of CAD/CAM-fabricated all-ceramic crowns luted on titanium implant abutments using different ceramic materials and luting agents.
Authors: Bjelopavlovic Monika , Weyhrauch Michael , Scheller Herbert , Wentaschek Stefan , Lehmann Karl Martin
Published: May 2022

Objectives.
This study aimed to determine the retentive strength of monolithic hybrid-all-ceramic crowns luted on titanium implant abutments.
Material and Methods.
In total, 450 crowns (75 each of Mark II, Empress CAD, e.max CAD, Suprinity, Enamic, Celtra Duo) were milled using a CAD/CAM system. The crowns were cemented onto sandblasted titanium implant abutments using five luting agents (Multilink Implant, Variolink II, RelyX Unicem, Fujicem, and Panavia 2.0). After thermocycling, the crowns were removed using a universal testing machine. The location of luting-agent residue on the abutment and inner crown surfaces was evaluated. Analyses of variance (ANOVA) with the Bonferroni correction were performed to evaluate differences of retentive strength depending on the crown material and the kind of the luting agent.
Results.
The retentive strength for the different ceramic materials were Vita Mark II: 652N-759N (SD:134N-146N), Empress CAD: 681N-822N (SD: 89N-146N), e.max CAD: 784N-1044N (SD: 109N-176N), Vita Enamic: 716N-1177N (SD: 132N-220N), Vita Suprinity: 867N-1488N (SD: 202N-278N) and Celtra Duo 772N-1335N (SD:151N-229N). After the removal trials, the visual documentation showed different adhesive residue location depending on the ceramic materials. Furthermore, the pull-off force was dependent on the choice of adhesives
Conclusions.
The ceramic material used seems to influence the retentive strength and the use of certain luting agents result for some ceramic materials in a higher retentive strength.
CNN3 knockdown inhibits the proliferation, invasion and migration of glioma
Authors: Xiao Xu , Wang Yu , Xiao Han , Li Chenlong , Liang Peng
Published: May 2022

BackgroundGlioma is a severe, malignant tumor in the central nervous system. The present study detected the expression level and biological functions of calponin 3 (CNN3) in glioma to investigate the mechanism of glioma. ResultsThe results revealed that CNN3 was significantly overexpressed in glioma cells and tissues, and was associated with poor prognosis. Knockdown of CNN3 reduced the proliferation, invasion and migration of glioma in vitro, and inhibited the growth of glioma in vivo, indicating that CNN3 was significantly associated with MEK/ERK signaling pathway. ConclusionsCNN3 is a tumor-promoting gene in glioma, and a promising novel tumor marker and therapeutic target for glioma diagnosis.
Development of a numerical modelling method to predict the seismic signals generated by wind farms
Authors: Limberger Fabian , Rümpker Georg , Lindenfeld Michael , Deckert Hagen
Published: May 2022

In efforts to reduce greenhouse gas emissions, renewable energies have been increasingly leveraged to generate power; in particular, the number of wind turbines has risen sharply in recent years and continues to grow. However, being mechanically coupled to the earth, wind turbines also generate ground vibrations, which can have adverse effects on the capability of seismic observatories to detect and analyse earthquakes; nevertheless, the distances at which these signals modulate seismic records are disputed between the operators of wind farms and seismic observatories. Here, to quantify the noise signal amplitudes at distant seismometers, we develop the first numerical modelling to predict the seismic wavefield emitted by wind farms and simulate the complex effects of wavefield interferences, surface topography and attenuation. This modelling approach can reliably quantify the influences of multiple wind turbines on ground motion recordings and thus provide necessary information to aid decision-making in advance of wind farm installation.