bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of sleep habits on acute myocardial infarction risk and severity of coronary artery disease in Chinese population
Authors: Lian Xiaoqing , Gu Jie , Wang Sibo , Yan Jianjun , Chen Xiaowen , Wang Mingwei , Zhang Yuqing , Wang Liansheng
Published: May 2021

Background

Growing evidence indicates that poor sleep harms health. Early to bed and early to rise is considered as a healthy lifestyle in Chinese population. The current study aimed to examine the effects of sleep habits on acute myocardial infarction (AMI) risk and severity of coronary artery disease (CAD) in Chinese population from two centers.
Methods

A total of 873 patients including 314 AMI and 559 controls were recruited from the inpatient cardiology department of the Affiliated Jiangning Hospital and the First Affiliated Hospital of Nanjing Medical University. 559 controls included 395 CAD cases and 164 non-CAD cases. We used a 17-item sleep factors questionnaire (SFQ) to evaluate sleep habits comprehensively by face-to-face interview. The severity of CAD was assessed by Gensini score in AMI and CAD groups. The effects of sleep factors on AMI risk and Gensini score were examined by unconditional logistic regression.
Results

After mutually adjustment for other sleep factors and demographic characteristics, the timing of sleep (24:00 and after), sleep duration (< 6h) and frequency of night-time waking (3 times) were associated with increased risk of AMI. In subjects with age < 65 years, sleep duration (< 6h) was correlated with increased risk of AMI (OR 3.096, 95%CI 1.435–6.681, P = 0.004) and daytime napping was related to reduced risk of AMI (OR 0.620, 95%CI 0.397–0.970,P = 0.036). In the population aged ≥ 65 years, the level 3 of light exposure (they could see only the hazy outline of the bedroom) was correlated with lowered risk of AMI. Late sleep timing (24:00 and after) and the frequency of night-time waking (3 times) were associated with increased risk of AMI independently of age. Moreover, Short sleep duration was correlated with increased risk of high Gensini score.
Conclusion

Late sleeping is an important risk factor for AMI. Daytime napping may protect the population aged < 65 years.
Factor Affecting COVID-19 Vaccine Hesitancy in Bangladesh: An Empirical Investigation
Authors: Arefin Kazi Asequl , Hossain Anwar , Rahman Md. H Asibur
Published: May 2021

This study aims to look at the causes of COVID-19 vaccine hesitancy in Bangladesh by examining the cultural and religious values, lack of trust, misinformation, and fear of side effects as predictors of vaccine hesitancy. Self-developed measurement items, developed based on the expert's opinion, were used to accomplish the objective. Data was gathered from 268 respondents who represented their community through both an online and a physical survey. SPSS version 25 was used to optimize descriptive statistics. Besides, SmartPLS 3.0 was used to examine the hypotheses using the PLS-SEM approach. The study confirms that lack of trust, misinformation and fear of side effects all play a role in vaccine hesitancy. Besides, the results have many significant implications for public health policymakers, vaccine manufacturers and distributors, and the media. Besides that, the study proposes some new research avenues for overcoming this study's limitations and gaining more detailed information on the topic.
PAciFy Cough – A multicentre, double blind, placebo controlled, crossover trial of morphine sulfate for the treatment of PulmonAry Fibrosis Cough
Authors: Wu Zhe , Banya Winston , Chaudhuri Nazia , Jakupovic Ira , Maher Toby , Patel Brijesh , Spencer Lisa , Thillai Muhunthan , West Alex , Westoby John , Wijsenbeek Marlies , Smith Jaclyn , Molyneaux Philip
Published: May 2021

Background: Idiopathic pulmonary fibrosis (IPF) is a progressive disease that leads to lung scarring, Cough is reported by 85% of patients with IPF and can be a distressing symptom with a significant impact on patients’ quality of life. There are no proven effective therapies for IPF related cough. While morphine is frequently used as a palliative agent for breathlessness in IPF, its effects on cough have never been tested. PAciFy Cough is a multicenter, double-blind, placebo-controlled, crossover trial of morphine sulfate for the treatment of cough in IPF. Methods: We will recruit 44 subjects with IPF prospectively from three interstitial lung disease units in the UK, namely the Royal Brompton Hospital, Manchester University NHS Foundation Trust (MFT) and Aintree University Hospital NHS Foundation Trust. Patients will be randomized (1:1) to either placebo twice daily or morphine sulfate 5mg twice daily for 14 days. They will then crossover after a 7 day washout period. The primary endpoint is the percent change in daytime cough frequency (coughs per hour) from baseline as assessed by objective cough monitoring at Day 14 of treatment.Discussion: This multicentre, randomised trial will assess the effect of opioids on cough counts and cough associated quality of life in IPF subjects. If proven to be an effective intervention, it represents a readily available treatment for patients.Trial registration: The study was approved by the UK Medicines and Healthcare Regulatory Agency (Ref: CTA 21268/0224/001-0001 – EUDRACT 2019-003571-19 – Protocol Number RBH2019/001) on 08 April 2020, in compliance with the European Clinical Trials Directive and the Medicines for Human Use (Clinical Trials) Regulations 2004 and its subsequent amendments. The study was provided with ethical approval by the London Brent Research Ethics Committee (Ref: 20/LO/0368) on 21 May 2020 and is registered with clinicaltrials.gov (NCT04429516) on 12 June 2020, available at https://clinicaltrials.gov/ct2/show/NCT04429516
Tractography of the Arcuate Fasciculus in Healthy Right-Handed and Left-Handed Multilingual Subjects and Its Relation to Language Lateralization on Functional MRI
Authors: Yazbek Sandrine , Hage Stephanie , Mallak Iyad , Smayra Tarek
Published: May 2021

Purpose Functional MRI (fMRI) enables evaluation of language cortical organization and plays a central role in surgical planning. Diffusion Tensor Imaging (DTI) or Tractography, allows evaluation of the white matter fibers involved in language. Unlike fMRI, DTI does not rely on the patient's cooperation. In monolinguals, there is a good correlation between the lateralization of language on fMRI and on DTI. Our objective is to delineate the arcuate fasciculus (AF) in right- and left-handed trilinguals and determine if the AF laterality on DTI is correlated to language lateralization on fMRI.Methods 15 right and 15 left-handed trilingual volunteers underwent fMRI and DTI. Laterality Index was determined on fMRI (fMRI-LI). Mean Diffusivity, Fractional Anisotropy (FA), Number of Fibers, Fiber Length, Fiber Volume and Laterality Index (DTI-LI) of the AF were calculated on DTI.Results 28 of the 30 subjects presented a bilateral AF. Most subjects (52%) were found to have a bilateral language lateralization of the AF on DTI. Only 4 subjects had bilateral lateralization of language on fMRI. The right AF demonstrated lower diffusivity than the left AF in the total participants, the right-handed, and the left-handed subjects. FA, Volume and Length of the AF were not significantly different between the two hemispheres. No correlation was found between the DTI-LI of the AF and the fMRI-LI.Conclusion A prominent role of the right AF and a bilateral structural organization of the AF was present in our multilingual population regardless of their handedness. While in prior studies DTI was able to determine language lateralization in monolingual subjects, this was not possible in trilingual highly educated subjects.
Early and mid-term outcomes of nonsurgical management of femoral shaft fractures with associated multiple injuries in school-age children
Authors: Qiao Yi , Wang Xiaodong , Dai Jin , Zhen Yunfang
Published: May 2021

Background

Femoral shaft fractures associated with multiple injuries are commonly encountered in school-age children. Clinical outcomes of non-surgical management of pediatric femoral shaft fractures with high-energy multiple injuries are not well characterized. In this study, we evaluated the early and mid-term clinical outcomes of non-surgical management of pediatric femoral shaft fractures with high energy multiple injuries in our setting.
Methods

Retrospective review of school-age children with femoral shaft fractures managed non-surgically at the orthopedics department over a 3-year period.
Results

Eleven patients (6 boys and five girls; mean age: 7.2 years) with femoral shaft fractures associated with multiple injuries qualified the inclusion criteria. All fractures in this study population were sustained in road traffic accidents. Seven patients recovered very well. Basic functional recovery of lower limbs was satisfactory. Two patients had residual joint dysfunction, 4 patients showed abnormal gait, while 4 patients showed varying degrees of limp because of lower limb length discrepancy.
Conclusion

Clinical outcomes of non-surgical management of pediatric femoral shaft fractures at our center were comparable to the outcomes of other management approaches. Conservative management that shortens the duration of hospital stay without increasing cost of management should be encouraged.
COVID-19 is affecting elderly people more and increasing in its severity
Authors: Mertoglu Cuma , huyut mehmet tahir , olmez hasan , tosun mustafa , kantarci mecit , coban taha abdulkadir
Published: May 2021

Objective

The important changes occur in routine blood tests in Corona Virus Disease 2019 (COVID-19).
Methods

The biochemical, hematological and inflammatory biomarkers of a total of 3969 COVID-19 patients’ results (3746 in the non-intensive care unit (non-ICU) group and 223 in the ICU group) were analyzed by dividing into three groups as spring, summer and autumn.
Results

In the non-ICU group, lymphocyte to monocyte ratio were lower in autumn than the other two seasons and neutrophil to lymphocyte ratio was higher in autumn than the other two seasons. Also, monocyte and platelet were higher in spring than autumn and eosinophil, hematocrit, hemoglobin, lymphocyte and red blood cells decreased from spring to autumn. In the non-ICU group, alanine aminotransferase and gamma-glutamyltransferase gradually increased from spring to autumn while albumin, alkaline phosphatase, calcium, total bilirubin and total protein gradually decreased. Additionally, C-reactive protein was higher in autumn than the other seasons, erythrocyte sedimentation rate was higher than the only summer.
Conclusion

The change in routine blood biomarkers in COVID-19 varies in the period from the emergence of the disease until now. Also, the timely change of blood biomarkers was mostly more negative and this indicates that the disease progresses more severely.
Human endogenous retrovirus K activation in the lower respiratory tract of severe COVID-19 patients associates with early mortality
Authors: Souza Thiago , Temerozo Jairo , Fintelman-Rodrigues Natalia , Santos Monique Cristina , Hottz Eugênio , Sacramento Carolina , Silva Aline , Mandacaru Samuel , Moraes Emilly Caroline , Trugilho Monique , Gesto João , Ferreira Marcelo , Betoni Felipe , Martins-Gonçalves Remy , Azevedo-Quintanilha Isacláudia , Abrantes Juliana , Righy Cassia , Kurtz Pedro , Jiang Hui , Tan Hongdong , Morel Carlos , Bou-Habib Dumith , Bozza Fernando , Bozza Patricia
Published: May 2021

Critically ill 2019 coronavirus disease patients (COVID-19) under invasive mechanical ventilation (IMV) are 10- to 40-times more likely to die than the general population. Although progression from mild to severe COVID-19 has been associated with hypoxia, uncontrolled inflammation and coagulopathy, the mechanisms involved in progression to severity are poorly understood. By analyzing the virome from tracheal aspirates (TA) of 25 COVID-19 patients under IMV, we found higher levels and differential expression of human endogenous retrovirus K (HERV-K) genes compared to nasopharyngeal swabs from mild cases and TA from non-COVID patients. Proteomic analysis and RT-PCR confirmed the presence of HERV-K in these patients. Moreover, increased HERV-K expression was triggered in human primary monocytes from healthy donors after experimental SARS-CoV-2 infection in vitro. In critically ill patients, higher HERV-K levels were associated with early mortality (within 14 days) in the intensive care unit. Increased HERV-K expression in deceased patients associated with IL-17-related inflammation, monocyte activation and higher consumption of clotting/fibrinolysis factors. Our data implicate the levels of HERV-K transcripts in the outcome of critical COVID-19 patients under invasive mechanical ventilation.
Anisotropic scaling in 3D topological models: fromWeyl semimetal to Hopf insulator
Authors: Rufo S. , Griffith M. A. R. , Lopes Nei , Continentino M. A.
Published: May 2021

A proposal to study topological models beyond the standard topological classification and that exhibit breakdown of Lorentz invariance is presented. The focus of the investigation relies on their anisotropic quantum critical behavior. We study anisotropic effects on three-dimensional (3D) topological models, computing their anisotropic correlation length critical exponent ν obtained from numerical calculations of the penetration length of the zero-energy surface states as a function of the distance to the topological quantum critical point. A generalized Weyl semimetal model with broken time-reversal symmetry is introduced and studied using a modified Dirac equation. An approach to characterize topological surface states in topological insulators when applied to Fermi arcs allows to capture the anisotropic critical exponent θ = νx/νz. We also consider the Hopf insulator model, for which the study of the topological surface states yields unusual values for ν and for the dynamic critical exponent z. From an analysis of the energy dispersions, we propose a scaling relation να¯ zα¯ = 2q and θ = νx/νz = zz/zx for ν and z that only depends on the Hopf insulator Hamiltonian parameters p and q and the axis direction α¯ . An anisotropic quantum hyperscaling relation is also obtained.
Association between prenatal maternal anxiety and/or stress and offspring’s cognitive functioning: a systematic review and meta-analysis
Authors: Delagneau Garance , Testa Renee , Veen Sarit Van , Anderson Peter
Published: May 2021

The relationship between prenatal maternal stress and/or anxiety and children’s cognitive development is inconclusive. This systematic review and meta-analysis aims to examine the relationship between the different domains of stress, anxiety and children’s cognitive outcomes during the first 18 years of life. Five databases were searched for all observational studies investigating the association between symptoms of prenatal maternal anxiety and/or stress and children’s cognitive outcomes. Of 7,004 articles identified, 21 met the inclusion criteria and 11 provided usable data that were further analysed quantitatively. A weak negative association was found between prenatal stress and/or anxiety exposure and the offspring’s language development. Associations varied based on the type of prenatal psychological exposure (i.e., trait anxiety, state anxiety, perceived stress, stress response). Specifically, maternal prenatal exposure to stress but not anxiety was found to correlate with children’s general intellectual skills. Moreover, trait anxiety but not the combined exposure to trait and state anxiety was correlated with attention in the offspring. While exposure to stress and/or anxiety at any stage of pregnancy was found to be associated with adverse cognitive outcomes in the offspring, there was a trend that timing of exposure may be associated with distinct cognitive outcomes. Findings support the need for screening and interventions to prevent or minimise mental health problems in pregnant women in order to optimise child development. Findings also have implications for conceptualising prenatal stress and anxiety in future research, as well as investigating timing and cumulative effects of prenatal stress and/anxiety exposure.
« Rien ne va plus » ?
Authors: Ege Gian , Edem Elinor
Published: May 2021

Die Verbreitung von Glücksspielangeboten und damit einhergehend auch die Prävalenz von Glücksspielsucht sind in den letzten Jahren zunehmend gestiegen. Betroffene Personen sind dadurch einem hohen Leidensdruck ausgesetzt und greifen zur Ermöglichung des fortgesetzten Glücksspiels immer wieder auf kriminelle Verhaltensweisen zurück. Der vorliegende Beitrag zeigt auf, dass es sich dabei oftmals um eine auf die Befriedigung der Sucht abzielende «Beschaffungskriminalität» handelt. Entsprechend zur Situation bei einer stoffgebundenen Sucht kann dies zur Beeinträchtigung der Schuldfähigkeit entsprechender Täter führen.
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Ces dernières années, la diffusion des offres de jeux de hasard est en pleine expansion, tout comme les cas de dépendance liée au jeu. Les personnes touchées par cette d’addiction sont en proie à de grandes souffrances et sont ainsi susceptibles d’adopter des comportements criminels répétés afin de pouvoir continuer à jouer. Cet article démontre qu'il s'agit le plus souvent d’activités criminelles perpétrées dans le but de financer leurs pulsions addictives (Beschaffungskriminalität). Dès lors, comme dans le cas d'une dépendance à une substance, une diminution de la culpabilité des délinquants pourrait être envisagée.
LOGISTIC ACTIVITY OF LUKAS MTC PE: CURRENT STATE AND DIRECTIONS OF FURTHER IMPROVEMENT
Authors: Syhyda L.O. , Tsunenko A.M.
Published: May 2021

In the current conditions problem of logistics is becoming more and more burning for enterprises. The reason is that logistics reflects the willingness of enterprises to adapting and transparency. Accordingly, the purpose of the article is to study the peculiarities of the logistics activities at the Lukas MTC PE.
The data presented in the article were obtained using such research methods as analysis, graphical method, and SWOT-analysis. As a result of the research, the literature sources devoted to the problem of supply chain management and its efficiency evaluation at the enterprises were investigated. Using Google trends, we determined the dynamics of the keyword “logistics” search for the period from May 2019 to May 2020. Additionally, based on the Scopus database, we analyzed publications for the keyword “supply chain management”. It showed that the scientists from the United States, Great Britain, India, and Germany make the main contribution in this field, and the chain concept forms the largest cluster of research.
Using SWOT-analysis, we identified the strengths and weaknesses of the Lukas MTC PE. It allowed determining further directions of enterprises’ development regarding potential threats. Moreover, we presented the features of the logistics activities of the enterprise in the form of the Ishikawa diagram. It showed the success factors of the Lukas MTC PE logistics activities. In particular, as the main factors, we highlighted its own logistics center, suppliers’ careful selection and control, electronic system 1C WMS in the warehouse, and others.
The obtained results allowed to suggest three main directions of the logistics activity improvement. The first is the implementation of the logistics concept "just-in-time", which provides the use of the KANBAN system. The second one is the implementation of the ERP system, and the third is the introduction of SAP Transportation Management (SAP TM). Also, we analyzed potential risks to increase the effectiveness of the proposed improvements implementation. The extreme risks are lack of material, financial, labor resources, and insufficient qualifications of employees in working with new programs. Additionally, risk analysis allowed to develop preventive measures to reduce or eliminate potential risks.
Further research aims at studying the peculiarities of Lukas MTC PE interaction with suppliers.
GENDER ASPECTS AND GREEN MARKETING: CASE FOR UKRAINE
Authors: Pimonenko T. , Toptun Yu. , Us Ya.
Published: May 2021

The paper focused on the analysis of the gender factors under the developing of a marketing program to promote green goods. With the purpose to identify the scientific schools on this theme, the bibliometric analysis was conducted. In 2013 year and 2019 year, there was a significant increase in the number of publications which focused on the investigation on green marketing issues. Such trends could be explained by the growing level of interest of the world community in environmental issues. The findings allowed concluding that green marketing is considered by scientists in linking with such scientific areas as health economics, social development, economic development. The scientific community studied the gender and age parameters as key factors in the effective implementation of green marketing. In order to determine the role of gender and age factors in decision-making on the purchase of environmental goods, the survey of 176 students from Sumy State University (Ukraine) was conducted. The findings confirmed that women were more aware of environmental products than men, and 84.1% of women prefer to buy environmental products. It was determined that the most popular eco bags are shoppers – 54.5% among respondents, in second place – garbage sorting (49.4% among respondents), in third place – the rejection of plastic (48.3% among respondents). It was found that 77.8% of respondents are looking for eco-products in the category of food. Male respondents of all age are most looking for eco-goods in the category of household goods (55 respondents). Male respondents do not follow modern eco-trends and do not pay much attention to environmental labelling. Women, on the other hand, are more aware of environmental issues and often support eco-trends. The generalized results showed that one of the factors that reduce the effectiveness of green marketing was the low level of awareness of students on the nature and importance of eco-products. It was found that gender should be considered during the selection of communications channels with students and green marketing tools for the promotion of environmental products.
Electric manipulation of domain walls in magnetic Weyl semimetals via the axial anomaly
Authors: Hannukainen Julia , Cortijo Alberto , Bardarson Jens H , Ferreiros Yago
Published: May 2021

We show how the axial (chiral) anomaly induces a spin torque on the magnetization in magnetic Weyl semimetals. The anomaly produces an imbalance in left- and right-handed chirality carriers when non-orthogonal electric and magnetic fields are applied. Such imbalance generates a spin density which exerts a torque on the magnetization, the strength of which can be controlled by the intensity of the applied electric field. We show how this results in an electric control of the chirality of domain walls, as well as in an improvement of the domain wall dynamics, by delaying the onset of the Walker breakdown. The measurement of the electric field mediated changes in the domain wall chirality would constitute a direct proof of the axial anomaly. Additionally, we show how quantum fluctuations of electronic Fermi arc states bound to the domain wall naturally induce an effective magnetic anisotropy, allowing for high domain wall velocities even if the intrinsic anisotropy of the magnetic Weyl semimetal is small.
Rifaximin: unique selective antibiotic for the treatment of gastrointestinal diseases
Authors: Plotnikova E. Yu.
Published: May 2021

The human gut microbiota has been a major focus of scientific research in recent years. Studies based on metagenomic methods have revealed the multifaceted abilities of gut microbes, from metabolic functions to immunomodulation, from antipathogenic activity to behavioral formation. Since the gut microbiota plays a crucial role in maintaining human health, more or less specific changes in the gut microbiota are associated with various gastrointestinal diseases. These data strongly support the use of gut microbiota modulators, such as antibiotics, prebiotics and probiotics, as the choice for almost all gastrointestinal disorders. The traditional use of antibiotics in clinical practice is to counteract local or systemic infections. It can be assumed that antibiotics have a detrimental effect on the intestinal ecology. However, this is not true for all antibiotics.

Rifaximin is a non-systemic oral antibiotic derived from rifampin and is characterized by a broad spectrum of antibacterial activity against Gram-positive and negative, aerobic and anaerobic bacteria. Rifaximin was first approved in Italy in 1987 and then in many other countries of the world for the treatment of several gastrointestinal diseases. This review presents the pharmacology and pharmacodynamics of rifaximin, describing various actions beyond its antibacterial activity, such as altering virulence, preventing intestinal mucosal adhesion and bacterial translocation. Key studies on the different uses of rifaximin are also described. In addition, rifaximin has some anti-inflammatory effects with minimal impact on the overall composition of the gut microbiota. All of these properties make rifaximin a good candidate for the treatment of various gastrointestinal diseases.
Periostin as a promising biological marker of early recurrence of polyposis rhinosinusitis after surgical treatment
Authors: Svistushkin V. M. , Chichkova N. V. , Pshonkina D. M.
Published: May 2021

Introduction. In spite of the numerous studies devoted to the issues of chronic rhinosinusitis with nasal polyps, the urgency of this problem remains due to the high incidence of the disease. The relapsing course of chronic rhinosinusitis with nasal polyps determines the uncontrolled course of bronchial asthma by patients with combined pathology. The main goal of case management of patients with chronic rhinosinusitis with nasal polyps is to achieve control over the polyposis process. It has been shown, that a promising direction is the study of biological markers. Goal. Study of the concentration of serum periostin in combination with serum eosinophilia and the number of eosinophils of the nasal secretion to predict early recurrence of chronic rhinosinusitis with nasal polyps after surgical treatment.

Materials and methods. The study included 47 patients with a diagnosis of chronic rhinosinusitis with nasal polyps and chronic rhinosinusitis with nasal polyps in combination with bronchial asthma. All patients underwent bilateral endoscopic polysinusotomy followed by case follow-up for a year. The diagnosis of bronchial asthma was made based on the diagnostic criteria defined in the Global Strategy for the Treatment and Prevention of Bronchial Asthma and in the Federal Clinical Guidelines for the Diagnosis and Treatment of Bronchial Asthma. All patients were consulted by a pulmonologist. Control examinations of patients were carried out every 3 months. All patients underwent a study of the concentration of periostin in the blood serum. Blood probe samples were taken before the start of treatment and after 12 months.

Results and discussion. In the course of the study, was proved the relationship between a high concentration of serum periostin in combination with increased eosinophils of blood and nasal secretion with an early relapse of polyposis rhinosinusitis.

Conclusions. An increased concentration of serum periostin before surgical treatment is a prognostically unfavorable factor for early recurrence of chronic rhinosinusitis with nasal polyps.
Fault recognition of rolling bearing with small-scale dataset based on transfer learning
Authors: Wang Ying , Liang Mingxuan , Wu Xiangwei , Qian Lijuan , Chen Li
Published: May 2021

Although, deep learning has been successfully used for fault diagnosis of rolling bearing by training large-scale data, the acquisition of large-scale fault data requires a high cost. For small-scale data, the precision of network model will decrease with the deepening of network layers. Aiming at above issue, a convolutional neural network algorithm based on transfer learning model is proposed. First, the overlap sampling of rolling bearing fault signals are used to enhance the datasets, and the transfer learning model is pre-trained on standard-scale dataset to obtain the initial network parameters, that will be used to extract bearing fault features from small-scale dataset. The effects of data scale and fault categories on model accuracy are discussed based on the comparison and verification on public bearing fault dataset. The results show that the proposed method in this paper can achieve high-precision with a small computational cost on fault identification of small-scale fault data, and the method shows popularization value for the analysis of small-scale datasets in other areas.
Improving the efficiency of decision-making during emergency situations in cyberphysical distributed production systems
Authors:   Russian Federation Security Guard Service Federal Academy, Shelkovyy Denis V. , Sivchenko Oleg Yu. ,   St. Petersburg Federal Research Center of the Russian Academy of Sciences, Usina Elizaveta E. ,   St. Petersburg Federal Research Center of the Russian Academy of Sciences, Bykov Аleksandr N. ,   St. Petersburg Federal Research Center of the Russian Academy of Sciences
Published: May 2021

This paper presents results of approbation of existing mathematical models, enabling operative assessment of the required link resource to serve data streams, generated by the elements of technical vision subsystem in cyberphysical distributed production systems. Simulation experiments allowed to discover dependencies between achievable multimedia traffic packet processing delay in switching systems and link-level resource, reserved for respective data transfer. Obtained dependencies are to be used during design of algorithm for link resource control for increasing speed of decision making in emergency.
ORDENAMENTO TERRITORIAL E URBANIZAÇÃO ESPECÍFICA DE CHÁCARAS DE LAZER:
Authors: Dias Maico , Aguilar Cantero Rodrigo
Published: May 2021

Este artigo versa sobre a dinâmica de loteamentos de chácaras de lazer nos municípios de Alvorada do Sul e Primeiro de Maio, no norte do estado do Paraná. Busca-se o entendimento da evolução socioespacial ocorridas nesses municípios a partir da década de 1970. Tem como objetivo principal analisar a produção do espaço urbano em áreas de urbanização específica de loteamentos de chácaras às margens da represa Capivara, assim como evidenciar como cada município por meio de sua legislação faz o ordenamento territorial destas áreas e o processo de aprovação destes loteamentos urbanos em áreas específicas. Verificamos que a dinâmica de lazer de segunda residência tem trazido ganhos socioeconômicos para ambos, e que existem diferenças tanto na evolução de legislações direcionadas, quanto na densidade de ocupação.
A GEOGRAFIA, O MÉTODO E SEU OBJETO:
Authors: Câmara da Silva Figueiredo Suzete , Moura Francisco Aracildo de , Rodrigues Diego
Published: May 2021

O presente artigo destina-se a apresentar o diálogo possível e pertinente entre as obras de Santos (1996), Gregory (1992) e Gomes (1996) no que diz respeito à compreensão da Geografia, as discussões que envolvem o método, bem como a definição e entendimento do objeto de estudo da Geografia. No cerne desse estudo, encontra-se o homem e a terra, bem como, as relações que envolvem estes elementos de modo que fica evidente a necessária existência de um sistema no qual as relações se imbricam, porque do contrário, existiriam peças isoladas sem relações entre ambas. A leitura das obras referenciadas possibilitou o encontro teórico do tripé: método, objeto e bases epistemológicas da Geografia, onde o conjunto de ideias aponta para uma leitura sistêmica da terra e seus habitantes a partir do espaço geográfico.
O TRABALHO DE CATADORES E CATADORAS DE MATERIAIS RECICLÁVEIS NA COOPERMAR EM CUIABÁ-MT.
Authors: Dias Ribeiro Nielli Layane , Cantoia Sílvia Fernanda
Published: May 2021

O trabalho de catadores e catadoras de materiais recicláveis é essencial para que haja a implantação efetiva da Política Nacional de Resíduos Sólidos no Brasil. A organização destes trabalhadores em cooperativas assim como a organização de sistemas de gerenciamento e gestão de resíduos nos municípios é necessária e urgente. O artigo tem como objetivo elucidar o trabalho na cooperativa Coopermar na cidade de Cuiabá, apresentando partes do trabalho desenvolvido na coleta, separação e venda dos materiais recicláveis. Ressalta-se que o município não possui serviço de coleta seletiva efetivo, assim como há precarização do trabalho nesta cooperativa evidenciando a necessidade de investimentos e incentivos por parte do poder público municipal.
Enterohemorragische E. coli met speciale aandacht voor de bij de Duitse uitbraak betrokken stam O104:H4
Authors: Joris M. A. , Vanrompay D. , Verstraete K. , De Reu K. , De Zutter L.
Published: May 2021

In dit overzichtsartikel worden de epidemiologie en de ecologie van de enterohemorragische Escherichia coli (EHEC), een subset van de verocytotoxigene E. coli (VTEC) besproken en wordt het belang ervan voor de volksgezondheid toegelicht. Speciale aandacht wordt besteed aan de uitbraakstam O104:H4 die geïsoleerd werd als verwekker van de tweede grootste uitbraak van het hemolytische uremisch syndroom wereldwijd. Deze uitbraak begon in mei 2011 in Duitsland maar hield heel Europa in de ban. Deze stam is echter geen EHEC als dusdanig, maar bezit een ongewone combinatie van virulentiefactoren van zowel EHEC als enteroaggregatieve E. coli.
Equine proliferatieve enteropathie veroorzaakt door Lawsonia intracellularis: geen zeldzame aandoening meer!
Authors: Vyncke K. , Deprez P. , Verryken K. , Lefère L. , Torfs S. , van Loon G.
Published: May 2021

Equine proliferatieve enteropathie, veroorzaakt door Lawsonia intracellularis, werd pas op het einde van de vorige eeuw voor het eerst beschreven en werd initieel beschouwd als een sporadisch voorkomende aandoening, maar ze komt tegenwoordig steeds vaker voor. Als kenmerkende klinische symptomen worden vermageren, lethargie, ventraal oedeem, koorts en eventueel diarree en koliek vermeld bij veulens van twee tot acht maanden oud. Bij bloedonderzoek valt vooral een uitgesproken hypoalbuminemie op. De diagnose kan gesteld worden aan de hand van serologie en een PCR-analyse van de mest. Sinds een paar jaar wordt het duidelijk dat een zeer groot deel van onze veulens en paarden seropositief is voor Lawsonia, hetgeen wijst op een sterke verspreiding van het agens in de omgeving. Daarom moet equine proliferatieve enteropathie (EPE) momenteel als een belangrijke differentiaal diagnostische mogelijkheid aanzien worden bij veulens met gewichtsverlies of andere digestieve klachten.
Vraag & Antwoord
Authors: Broeckx S. , Roels K. , Charlier J.
Published: May 2021

Toediening van prostagenen voor de instandhouding van de dracht bij merries
Verbetering van spermakwaliteit van hengsten
Ontworming van grazende koeien
Anesthesie van kittens - een literatuuroverzicht met nadruk op de mogelijkheden in België
Authors: Peeters E. H. K. A. , Porters N. , Bols P. E. J. , Nelissen M. , Moons C. P. H. , de Rooster H. , Polis I.
Published: May 2021

In België worden zelden electieve chirurgische ingrepen uitgevoerd bij zeer jonge kleine huisdieren. Veel dierenartsen hebben dan ook weinig ervaring met de anesthesie van pediatrische patiënten. In dit overzichtsartikel wordt kort ingegaan op de risicofactoren bij de anesthesie van kittens, gezien hun specifieke anatomie en fysiologie. Vervolgens wordt een overzicht gegeven van geschikte anesthetische protocollen. Injectieanesthesie op basis van combinaties met ketamine is een praktische, economische en efficiënte optie.
Subaortastenose bij de newfoundland: erfelijkheid, pathofysiologie, diagnose, prognose en fokadvies
Authors: Caestecker K. , Peelman L. , Bavegems V.
Published: May 2021

Subaortastenose is een progressieve ontwikkelingsstoornis gekenmerkt door een obstructie van de linker ventriculaire uitstroomtractus net onder de aortaklep. Een dominant overervingstype met variabele penetrantie wordt algemeen als oorzaak beschouwd. Bij muizen is homozygotie voor het allel Egfrwa2 in combinatie met een mutatie in het Ptpn11-gen geassocieerd met gevoeligheid voor een aandoening gelijkend op subaortastenose bij de newfoundland. De diagnose gebeurt op basis van de anamnese, auscultatie, elektrocardiografie, thoraxradiografie, echocardiografie en hartkatheterisatie. Bij auscultatie wordt een (holo)systolisch, vaak schurend, crescendo-decrescendo bijgeruis gehoord met een maximale intensiteit ter hoogte van de linkerhartbasis. Echocardiografisch worden de stenose en de veranderingen van de linker ventriculaire uitstroomtractus nagegaan, alsook de snelheid van de bloedstroom en de drukgradiënt gemeten over de aortaklep, de verhouding van de oppervlakte van de linker ventriculaire uitstroomtractus en de oppervlakte van de aorta en de oppervlakte ter hoogte van de stenose. De prognose is variabel. Fokadvies is niet eenvoudig en wordt gegeven op basis van echocardiografische screening op de leeftijd van achttien maanden.
Een asymmetrisch dubbelmonster geassocieerd met andere congenitale afwijkingen bij een chihuahuapup
Authors: House J. , Barrand K. R. , Cornillie P.
Published: May 2021

Een twee jaar oude chihuahua met duidelijk opgezet abdomen werd op 58 dagen dracht via een electieve keizersnede verlost van vijf normale en één duidelijk afwijkende pup. De misvormde pup was een asymmetrisch dubbelmonster waarbij de parasiet in het navelgebied met de autosiet verbonden was. De autosiet vertoonde aplasia cutis ter hoogte van het schedeldak, anasarca, lissencefalie, palatoschisis, sternale agenesie en eventeratio (gastroschisis/schistocoelia). De parasiet was slechts gedeeltelijk aangelegd en was ventraal ter hoogte van de thorax van de autosiet vastgehecht. De parasiet was samengesteld uit vier ledematen, terwijl kop en staart afwezig waren. Atresie van de anus en vulva werd opgemerkt. Inwendig werd slechts één enkele nier bij de parasiet aangetroffen. Voor zover de literatuur kon geraadpleegd worden, is deze casuïstiek slechts het derde uitvoerig beschreven geval van heteropagus bij de hond, waarbij de geassocieerde afwijkingen dit specifieke geval uniek maken. Een grondige literatuurstudie werd evenwel bemoeilijkt door het ontbreken van een uniforme nomenclatuur om een dergelijke vorm van dubbelmonsters te identificeren.
Profylactische gastropexie bij de hond: een overzicht van de chirurgische technieken
Authors: David S. , Van Goethem B. , Rubio-Guzman A. , de Rooster H.
Published: May 2021

Profylactische gastropexie wordt aangeraden bij honden die gepredisponeerd zijn om maagdilatatie en - torsie (MDT) te ontwikkelen. Bij de traditionele celiotomietechnieken resulteren de circumcostale en de belt-loop gastropexie in sterke adhesies met een minimale kans op MDT. Deze technieken worden echter geassocieerd met ernstige complicaties, zoals iatrogene pneumothorax, ribfracturen of peritonitis. De incisionele gastropexie leidt tot een minder sterke verbinding, maar resulteert toch in een drastische verlaging van het voorkomen van MDT. Vermits met deze techniek bovendien weinig complicaties worden gezien, geldt ze als de huidige gouden standaard. Morbiditeit is een belangrijk aspect voor een preventieve ingreep. Deze morbiditeit kan worden verminderd met minimaal invasieve operatietechnieken. De grote voordelen van laparoscopische gastropexie inzake weefseltrauma en het welzijn van de patiënt wegen ruim op tegen de technische vereisten en de leercurve.
Vraag & Antwoord
Authors: Rijsselaere T. , Leroy J. , Vlaminck L.
Published: May 2021

Suprelorin voor tijdelijke chemische castratie van de kater
Drachtigheidsdiagnose bij de lama
Behandeling van een "dikke voorknie" bij een koe
Oviductal prolapse associated with a leiomyoma in a Hermann’s tortoise (Testudo hermanni)
Authors: Simard J.
Published: May 2021

A twelve-year-old, female Hermann’s tortoise (Testudo hermanni) was presented with an oviductal prolapse after showing tenesmus for three days prior to presentation. Radiography revealed a soft tissue opacity in the caudal coelomic cavity that ultrasonographically presented as a congested, invaginated tubular structure and was deemed to comprise the left oviduct. After repositioning the oviductal prolapse, coelioscopy confirmed that the invaginated structure consisted of the anterior part of the left oviduct and incorporated a part of the ipsilateral mesovarium and mesosalpinx. A transplastron osteotomy was carried out to perform unilateral salpingectomy and bilateral ovariectomy. A definitive diagnosis of an oviductal leiomyoma was made based on histopathological and immunohistochemical examination of the invaginated part of the oviduct. In the present case, the authors highlight that neoplastic disorders should be considered as a cause of oviductal invagination and prolapse in chelonians. To the authors’ knowledge, this is the first report of the diagnosis and successful treatment of an oviductal leiomyoma in a Hermann’s tortoise.
Anatomía del esporofito de Anemia phyllitidis var. phyllitidis (Anemiaceae) de un bosque de ribera (Tucumán, Argentina)
Authors: Albornoz Patricia Liliana , Romagnoli María Gabriela , Hernández Marcela Alicia
Published: May 2021

Antecedentes y Objetivos: En Argentina, el género Anemia se encuentra representado por siete especies, una de ellas, A. phyllitidis, con dos variedades. Los antecedentes anatómicos para A. phyllitidis var. phyllitidis son escasos y están referidos a la ontogenia de estomas, estructura de epidermis y tipo de estela del pecíolo. Esta variedad, que habita en bosques riparios, es afectada por el incremento de presiones ecológicas estacionales. Debido a que la información que se registra acerca de la anatomía del esporofito es escasa, el objetivo de este trabajo fue caracterizarlo.Métodos: Cinco especímenes fueron colectados en la ribera del arroyo El Parque (Tucumán-Argentina). Una parte fue herborizada y la otra se fijó en FAA. Posteriormente fueron utilizadas técnicas histológicas convencionales y se determinaron la densidad estomática y el tamaño de estomas y tricomas. Se realizaron pruebas histoquímicas para la detección de almidón (lugol) y compuestos fenólicos (cloruro férrico al 10%).Resultados clave: Anemia phyllitidis var. phyllitidis muestra raíces diarcas y rizoma dictiostélico cubierto por tricomas glandulares. El pecíolo posee tricomas glandulares, epidermis y subepidermis formada por fibras lignificadas, haz vascular con xilema rodeado por floema, periciclo bistrato rodeado por endodermis y en el tejido cortical almidón y compuestos fenólicos. Las pinnas estériles poseen estomas pericíticos, anomocíticos y desmocíticos (tamaño promedio 49.8 µm × 38.7 µm); tricomas glandulares; lámina dorsiventral, hipostomática y haces vasculares con periciclo y endodermis. Las pinnas fértiles son anatómicamente semejantes al raquis. Algunas células epidérmicas de los distintos órganos evidenciaron la presencia de sílice.Conclusiones: El esporofito de A. phyllitidis var. phyllitidis mostró rasgos anatómicos, morfológicos y fisiológicos que revelan su adaptación al hábitat ribereño donde crece. Al mismo tiempo, se profundiza la descripción de esta variedad y se aportan datos inéditos del género, como la presencia de estegmata en las pinnas fértiles.
XXV Международный симпозиум Нанофизика и наноэлектроника", Нижний Новгород, 9-12 марта 2021 г. Формирование гексагональной фазы германия на поверхности нитевидных нанокристаллов AlGaAs методом молекулярно-пучковой эпитаксии
Authors: Илькив И.В. , Котляр К.П. , Кириленко Д.А. , Осипов А.В. , Сошников И.П. , Терпицкий А.Н. , Цырлин Г.Э.
Published: May 2021

Experimental results of studying the germanium deposition on the surface of AlGaAs nanowires are presented. The formation of both cubic and hexagonal Ge phases was revealed using Raman spectroscopy. The inheritance of the crystal structure during the growth of thin germanium layers on the lateral surfaces of wurtzite nanowires was shown.
Легирование углеродных нанослоев, выращенных импульсным лазерным методом
Authors: Данилов Ю.А. , Алафердов А.В. , Вихрова О.В. , Здоровейщев Д.А. , Ковальский В.А. , Крюков Р.Н. , Кузнецов Ю.М. , Лесников В.П. , Нежданов А.В. , Дроздов М.Н.
Published: May 2021

Исследованы возможности легирования углеродных слоев, выращиваемых методом импульсного лазерного нанесения, примесями переходных металлов. Изучены состав, оптические и электрические параметры структур на подложках GaAs и Si/SiO2. Показано, что введение таких атомов, как Fe, модифицирует магнитные свойства слоев, вызывая нелинейные магнитополевые зависимости эффекта Холла при температурах вплоть до 300 K. Ключевые слова: импульсное лазерное нанесение, углеродные слои, легирование, примеси переходных металлов.
Генерация спиновых токов в n-Si, легированном фосфором, сурьмой и висмутом и влияние на них процессов рассеяния спинов с переворотом
Authors: Ежевский А.А. , Гусейнов Д.В. , Сухоруков А.В. , Калинина Е.А. , Новиков А.В. , Юрасов Д.В. , Гусев Н.С.
Published: May 2021

Doping of silicon with bismuth leads to additional spin scattering of the conduction electron by the spin-orbit potential introduced by a heavy donor. In this paper, we discuss spin flip scattering influence on the generation of spin currents in silicon with electronic conductivity. Based on the theory of spin pumping and the diffusion model, the values of spin currents and voltages of the ISHE are calculated with varying the type of donor and its concentration and the spin diffusion lengths. Calculations made it possible to find the dependences of the magnitudes of the effects on the parameters of silicon layers doped with bismuth, and to explain the absence of ISHE signals when the silicon layer is doped only with phosphorus or antimony with a concentration of Nd> 1019 cm-3.
Повышение мощности и улучшение направленности излучения широкоапертурных гетеролазеров при оптимизации размеров брэгговской решетки
Authors: Гинзбург Н.С. , Сергеев А.С. , Кочаровская Е.Р. , Малкин А.М. , Заславский В.Ю.
Published: May 2021

We investigate the dynamics of heterolasers with finite-length planar Bragg structures. Based on the analysis of the dispersion equation describing the eigenwaves propagation in a Bragg structure, we present a physical interpretation of selection of modes with frequencies higher than the stopband. We demonstrate the improvement of stability by using the Bragg structures with transverse dimensions lower than the width of the active area of DFB heterolasers. As a result, the single-mode oscillation regime is sustained over a wider range of pump levels, and, correspondingly, of the output radiation power.
Подавление эффекта квазинасыщения вольт-амперных характеристик мощных сверхвысокочастотных латеральных транзисторов
Authors: Алексеев Р.П. , Черных М.И. , Цоцорин А.Н. , Семейкин И.В. , Быкадорова Г.В.
Published: May 2021

Was been performed the analysis of electric parameters of a new generation of RF LDMOS transistors developed by JSC "NIIET". In comparison with the devices of the previous generation was revealed a significant suppression of the effect of quasi-saturation of ID – VG and ID – VD characteristics. Comparison with a foreign-made device shows that the achieved results are close to the world level.