Fluorescence Analysis of E. coli Bacteria in Water

The fluorescence analysis of Escherichia coli (E. coli) bacteria was done. It has been established that a luminescent signal from the one of metabolites (reduction form of nicotinamide adenine dinucleotide, NADH) can be adopted as a vitality indicator of the bacteria. This signal was chosen as an analytical signal. It was determined that the nature of this signal is fluorescence. In order to eliminate influence of the light scattering on this fluorescence signal optimal conditions were chosen

Research of interferential factors of accounting and evaluation of cryptocurrency in the practical business model of a company

Cryptocurrency is a modern phenomenon of the digital economy, which is gradually becoming part of the business processes of companies of various profiles and economic sectors. The presence of unsettled issues at the legislative level of jurisdictions, as well as the ambiguity of approaches to the classification and assessment of cryptocurrency in financial reporting, gives rise to discussions of both practical and scientific nature. For trade organizations, the need to resolve this issue is evident, since already now businesses are considering the possibility of accepting payment for goods with some types of cryptocurrencies, as well as using cryptocurrencies to pay for the resources the company needs

Uncoupling DISC1 × D2R Protein-Protein Interactions Facilitates Latent Inhibition in Disc1-L100P Animal Model of Schizophrenia and Enhances Synaptic Plasticity via D2 Receptors

Both Disrupted-In-Schizophrenia-1 (DISC1) and dopamine receptors D2R have significant contributions to the pathogenesis of schizophrenia. Our previous study demonstrated that DISC1 binds to D2R and such protein-protein interaction is enhanced in patients with schizophrenia and Disc1-L100P mouse model of schizophrenia (Su et al., 2014). By uncoupling DISC1 × D2R interaction (trans-activator of transcription (TAT)-D2pep), the synthesized TAT-peptide elicited antipsychotic-like effects in pharmacological and genetic animal models, without motor side effects as tardive dyskinesia commonly seen with typical antipsychotic drugs (APDs), indicating that the potential of TAT-D2pep of becoming a new APD. Therefore, in the current study, we further explored the APD-associated capacities of TAT-D2pep. We found that TAT-D2pep corrected the disrupted latent inhibition (LI), as a hallmark of schizophrenia associated endophenotype, in Disc1-L100P mutant mice—a genetic model of schizophrenia, supporting further APD’ capacity of TAT-D2pep. Moreover, we found that TAT-D2pep elicited nootropic effects in C57BL/6NCrl inbred mice, suggesting that TAT-D2pep acts as a cognitive enhancer, a desirable feature of APDs of the new generation. Namely, TAT-D2pep improved working memory in T-maze, and cognitive flexibility assessed by the LI paradigm, in C57BL/6N mice. Next, we assessed the impact of TAT-D2pep on hippocampal long-term plasticity (LTP) under basal conditions and upon stimulation of D2 receptors using quinpirole. We found comparable effects of TAT-D2pep and its control TAT-D2pep-scrambled peptide (TAT-D2pep-sc) under basal conditions. However, under stimulation of D2R by quinpirole, LTP was enhanced in hippocampal slices incubated with TAT-D2pep, supporting the notion that TAT-D2pep acts in a dopamine-dependent manner and acts as synaptic enhancer. Overall, our experiments demonstrated implication of DISC1 × D2R protein-protein interactions into mechanisms of cognitive and synaptic plasticity, which help to further understand molecular-cellular mechanisms of APD of the next generation

Structure and Peculiarities of a Clinical Course of Tick-Borne Infections in Children of the Irkutsk Region

At present there are few studies generalizing the clinical picture of infections, transmitted by Ixodid ticks, in children population. Tick-borne viral encephalitis is still one of the important natural focal infections and accounts for up to 27 % among other tick-borne infections.The aim of the study was to determine the structure and features of the clinical course of tick infections in children of the Irkutsk region.Materials and methods. We conducted a retrospective analysis of 58 cases over three-year period from 2015 to 2017 of children aged 1 to 18 years diagnosed with tick-borne viral encephalitis (TVE), ixodid tick-borne borreliosis (ITB), tick-borne rickettsiosis (TR) according to the data of Irkutsk Regional Infectious Clinical Hospital.Results and discussion. Among tick-borne infections, TVE was found in 43 % of cases, ITB – in 27.5 %, TR – in 29.5 %, there was one case of mixed infection: TVE + tick-borne typhus in North Asia. In TVE, feverish form was found in 40 % of cases, meningeal form – in 36 %, meningoencephalitic form – in 20 %, polyradiculonevritic form – in 4 %. Medium severity was observed in 56 % of cases, severe – in 28 %. In ITB, non-erythematous form was revealed in 62.5 % of cases, erythematous – in 12.5 %. Clinical and epidemiological TR was registered in 18 % of cases. In patients with TVE recovery was observed in 84 %, however, there were 4 % of neurological complications. With the diagnosis of ITB and TR, almost all children were discharged in a satisfactory condition. No deaths were reported within 3 years. According to the medical history: only 1 child was vaccinated against TVE, 2 children underwent seroprevention; ticks, who bit 4 patients, were studied. Medical history showed that 57 % of children had tick bites, and 7 % of cases associated the disease with consumption of non-boiled goat or cow milk. Residents of Irkutsk, Angarsk and Shelekhov comprised 47 %, residents of the Irkutsk region – 53 %. The most common localization of bites is the head and neck.Conclusion. There is a low public commitment to the vaccine prevention of tick-borne infections. Therefore, it is necessary to promote both specific and non-specific prevention of tick-borne encephalitis among children of the Irkutsk region

The Model of Innovative Activities Management in a Competitive Market Conditions

Market competition in all sectors of the economy calls for maximum use, activation, optimal implementation of the results of scientific and technical progress - innovations. This is necessary not discrete implementation of innovative projects and development of a new system of interaction of innovative processes in all areas. Purpose of the article is modeling of innovative activities' processes management and development of recommendations to improve its productivity. The authors analyzed the theoretical and methodological aspects of innovative activities' implementation, revealed the structure of innovative activities and the parameters of its implementation. A mathematical model for innovative activities' managing, defining the hierarchy of its connections is proposed. This article is intended for regional leaders, top managers of enterprises, scientists and researchers involved in the innovative development of an economic sector. Keywords: innovations, innovative activities, management, modeling, investment JEL Classifications: С15, С51, O3

Short-term and medium-term clinical outcomes of multisystem inflammatory syndrome in children:a prospective observational cohort study

BACKGROUND: Even though the incidence of Multisystem Inflammatory Syndrome in children (MIS-C) is decreasing cases are still reported across the world. Studying the consequences of MIS-C enhances our understanding of the disease's prognosis. The objective of this study was to assess short- and medium-term clinical outcomes of MIS-C.METHODS: Prospective observational cohort study at Municipal Children's Hospital Morozovskaya, Moscow, Russia. All children meeting the Royal College of Paediatrics and Child Health (RCPCH), Centers for Disease Control and Prevention (CDC), or the World Health Organization (WHO) MIS-C case definition admitted to the hospital between 17 May and 26 October 2020 were included in the study. All survivors were invited to attend a clinic at 2 and 6 weeks after hospital discharge.RESULTS: 37 children median age 6 years (interquartile range [IQR] 3.3-9.4), 59.5% (22/37) boys were included in the study. 48.6% (18/37) of patients required ICU care. One child died. All children had increased levels of systemic inflammatory markers during the acute event. Echocardiographic investigations identified abnormal findings in 35.1% (13/37) of children. 5.6% (2/36) of children were presenting with any symptoms six weeks after discharge. By six weeks the inflammatory markers were within the reference norms in all children. The echocardiographic evaluation showed persistent coronary dilatation in one child.CONCLUSIONS: Despite the severity of their acute MIS-C, the majority of children in our cohort fully recovered with none having elevated laboratory markers of inflammation at 6 weeks, few (&lt; 10%) reporting persistent symptoms at 6 weeks, and only one with persistent echocardiographic abnormalities.</p

Lactation-associated macrophages exist in murine mammary tissue and human milk

Macrophages are involved in immune defense, organogenesis and tissue homeostasis. Macrophages contribute to the different phases of mammary gland remodeling during development, pregnancy and involution postlactation. Less is known about the dynamics of mammary gland macrophages in the lactation stage. Here, we describe a macrophage population present during lactation in mice. By multiparameter flow cytometry and single-cell RNA sequencing, we identified a lactation-induced CD11c$^{+}$CX3CR1$^{+}$Dectin-1$^{+}$ macrophage population (liMac) that was distinct from the two resident F4/80$^{hi}$ and F4/80$^{lo}$ macrophage subsets present pregestationally. LiMacs were predominantly monocyte-derived and expanded by proliferation in situ concomitant with nursing. LiMacs developed independently of IL-34, but required CSF-1 signaling and were partly microbiota-dependent. Locally, they resided adjacent to the basal cells of the alveoli and extravasated into the milk. We found several macrophage subsets in human milk that resembled liMacs. Collectively, these findings reveal the emergence of unique macrophages in the mammary gland and milk during lactation

The origins and spread of domestic horses from the Western Eurasian steppes

This is the final version. Available on open access from Nature Research via the DOI in this recordData availability: All collapsed and paired-end sequence data for samples sequenced in this study are available in compressed fastq format through the European Nucleotide Archive under accession number PRJEB44430, together with rescaled and trimmed bam sequence alignments against both the nuclear and mitochondrial horse reference genomes. Previously published ancient data used in this study are available under accession numbers PRJEB7537, PRJEB10098, PRJEB10854, PRJEB22390 and PRJEB31613, and detailed in Supplementary Table 1. The genomes of ten modern horses, publicly available, were also accessed as indicated in their corresponding original publications57,61,85-87.NOTE: see the published version available via the DOI in this record for the full list of authorsDomestication of horses fundamentally transformed long-range mobility and warfare. However, modern domesticated breeds do not descend from the earliest domestic horse lineage associated with archaeological evidence of bridling, milking and corralling at Botai, Central Asia around 3500 BC. Other longstanding candidate regions for horse domestication, such as Iberia and Anatolia, have also recently been challenged. Thus, the genetic, geographic and temporal origins of modern domestic horses have remained unknown. Here we pinpoint the Western Eurasian steppes, especially the lower Volga-Don region, as the homeland of modern domestic horses. Furthermore, we map the population changes accompanying domestication from 273 ancient horse genomes. This reveals that modern domestic horses ultimately replaced almost all other local populations as they expanded rapidly across Eurasia from about 2000 BC, synchronously with equestrian material culture, including Sintashta spoke-wheeled chariots. We find that equestrianism involved strong selection for critical locomotor and behavioural adaptations at the GSDMC and ZFPM1 genes. Our results reject the commonly held association between horseback riding and the massive expansion of Yamnaya steppe pastoralists into Europe around 3000 BC driving the spread of Indo-European languages. This contrasts with the scenario in Asia where Indo-Iranian languages, chariots and horses spread together, following the early second millennium BC Sintashta culture

The Mechanism of Constitutional Lawmaking at the United States of America as an Expression of Law Convergence

In the article the author analyzes the specificity of the constitutional lawmaking mechanism in the United States in the context of the combination of various lawmaking forms, including those that typical for different legal traditions. The uniqueness of the American legal system is that it combines the features of both common and continental law and so it has integrate nature. The author interprets constitutional lawmaking as the activity of competent lawmaking authorities on creation a constitution as the act of a special kind. The mechanism of constitutional lawmaking covers a system of interrelated elements (the static aspect) and successive stages (the dynamic aspect), providing the establishment and objectification of the constitutional norms in the form of an appropriate constitutional act. Converging nature of the American constitutional lawmaking mechanism has two aspects. The first aspect is connected with the specifics of adoption of the US Constitution. Initially in the mechanism of constitutional lawmaking the instrumentation of a treaty lawmaking has been involved. However the result of it was not an international treaty in the traditional sense, but a normative legal act with the supreme legal force. The second aspect represents a further development of the constitutional provisions through Constitution amendments (which is typical for continental constitutional tradition) and through the judicial constitutional lawmaking which is peculiar for common law tradition. The judicial constitutional lawmaking is carried out through the constitutional doctrines of the U.S. Supreme Court by which the constitutional norms are adopted without formal changes to the varying social conditions. It is concluded that the mechanism of constitutional lawmaking in the United States according to the integration nature of the American legal system expresses the law convergence because it combines three forms of lawmaking technique (contractual, legislative and case-law) and so far provides the best legal result