V*-algebras, independence algebras and logic

Independence algebras were introduced in the early 1990s by specialists in semigroup theory, as a tool to explain similarities between the transformation monoid on a set and the endomorphism monoid of a vector space. It turned out that these algebras had already been defined and studied in the 1960s, under the name of v*-algebras, by specialists in universal algebra (and statistics). Our goal is to complete this picture by discussing how, during the middle period, independence algebras began to play a very important role in logic

Clinical and anamnestic justification complications reproductive function after hydatidiform mole

The paper studied the comorbidity with nonproliferative molar pregnancy. The absence of components of comorbidity and a single conventional method of its measurement, devoid of the shortcomings of existing methods of international experience, as well as the methodology of its use does not give the term to face' to methodology in determining treatment strategies. The paper attempts to assess comorbidity in the study of non-proliferative molar pregnancy. For the analysis of A prospective study of 156 patients, observed after the transferred nonproliferativehydatidiform mole (refinery) and medical termination of pregnancy in the antenatal clinics of the city of Yekaterinburg in the period 2010-2015.В работе изучались клинико-анамнестические характеристики пациенток при наличии непролиферирующего пузырного заноса (НПЗ) с точки зрения коморбидности (К). Коморби дность (с лат. — «со» - вместе + morbus - болезнь) - наличие дополнительной клинической картины, которая уже существует или может появиться самостоятельно, помимо текущего заболевания, и всегда отличается от него. В работе осуществлялась оценка коморбидности в рамках изучения НПЗ. Для анализа проведено проспективное исследование 156 пациенток, наблюдавшихся после перенесенного непролиферирующего пузырного заноса (НПЗ) и медицинского прерывания беременности (МА) в женских консультациях МБУ ЦГКБ №24 и МАУ ЦГБ № 20, города Екатеринбурга, в период 2010-2015 годах

Multimodal Imaginaries and the “Big Worm”: Materialities, Artefacts and Analogies in São Paulo’s Urban Renovation

Recent interest in the multimodal accomplishment of organization has focused on the material and symbolic aspects of materiality. We argue that current literature invokes diverse “multimodal imaginaries”, that is, ways of conceiving the relation between the material and the conceptual, and that the different imaginaries support a plurality of perspectives on materiality. Using the empirical case of a large urban renewal project in São Paulo, Brazil, we illustrate three different multimodal imaginaries – the concrete, the semiotic, and the mimetic – and indicate how each imaginary determines the way in which the site in question is discursively constructed. After outlining the different approaches, we discuss their theoretical implications, advantages, and constraints, setting an agenda for future studies of materiality in organizational and institutional contexts

Estimation of the autoimmune thrombophylia in pregnant women with hypothyroidism of different origin

Aim of the research: estimation of the role ot autoimmune thrombophylia in the development of gestation complications on the background of hypothyroidism. Material and methods: prospective research of 60 pregnant women with hypothyroidism of different origin aged 19-39 years (29±0,51), divided into two equal groups. The first group — 30 pregnant women with hypothyroidism connected with autoimmune thyroiditis (AIT). The second group included 30 pregnant women with postoperative hypothyroidism (PT). All patients have compensated hypothyroidism from the beginning of pregnancy. Study results: complex of clinical signs, thrombocytopenia and increased lupus anticoagulant (LA) circulation has been revealed in the 1 group — 23,3% (7/30) and in the 2 group — 10,0% (3/30). Low placentation as the marker of primary fetoplacental insufficiency (FPI) was diagnosed reliably more often in the 1 group (46,7%(14/30) when compared with 10%(3/30) in the 2 group (χ²=8,2, (df)=1, P=0,004). Conclusion: hypothyroidism resulted from AIT is the marker of systemic «autoimmune damage» in the development of miscarriage and FPI. The presence of autoimmune thrombophylia in the pregnant women with hypothyroidism connected with AIT requires the indication of low molecular weight heparins twice daily in combination with systemic enzymotherapy and this allows improving perinatal prognosis.Цель работы: изучить роль аутоиммунной тромбофилии в формировании гестационных осложнений при гипотиреозе различного генеза в регионе с легким йодным дефицитом. Материалы и методы: проведено проспективное исследование 60 беременных с гипотиреозом различного генеза в возрасте от 19 до 39 лет (29±0,51) распределенных на две равные группы. Первая группа — 30 беременных с гипотиреозом вследствие аутоиммунного тиреоидита (АИТ). Вторая — 30 беременных с послеоперационным гипотиреозом (ПГ). Все пациентки с момента взятия на учет были компенсированы по гипотиреозу. Результаты исследований: выявлено сочетание клинических проявлений, тромбоцитопении и увеличения циркуляции волчаночного антикоагулянта (ВА) в 1 группе — 23,3%(7/30) и во 2 группе — 10,0%(3/30). Низкая плацентация, как маркер первичной фетоплацентарной недостаточности (ФПН) достоверно чаще встречалась в 1 группе (46,7%(14/30) по сравнению с 10,0%(3/30) во 2 группе (χ²=8,2, (df)=1, Р=0,004). Выводы: в формировании невынашивания и ФПН гипотиреоз вследствие АИТ является маркером системной «аутоиммунной агрессии». Наличие аутоиммунной тромбофилии у беременных с гипотиреозом вследствие АИТ требует назначения низкомолекулярных гепаринов в двукратном суточном режиме в сочетании с системной энзимотерапией и позволяет улучшить перинатальный прогноз

A multilevel neo-institutional analysis of infection prevention and control in English hospitals: coerced safety culture change?

Despite committed policy, regulative and professional efforts on healthcare safety, little is known about how such macro-interventions permeate organisations and shape culture over time. Informed by neo-institutional theory, we examined how inter-organisational influences shaped safety practices and inter-subjective meanings following efforts for coerced culture change. We traced macro-influences from 2000 to 2015 in infection prevention and control (IPC). Safety perceptions and meanings were inductively analysed from 130 in-depth qualitative interviews with senior- and middle-level managers from 30 English hospitals. A total of 869 institutional interventions were identified; 69% had a regulative component. In this context of forced implementation of safety practices, staff experienced inherent tensions concerning the scope of safety, their ability to be open and prioritisation of external mandates over local need. These tensions stemmed from conflicts among three co-existing institutional logics prevalent in the NHS. In response to requests for change, staff flexibly drew from a repertoire of cognitive, material and symbolic resources within and outside their organisations. They crafted 'strategies of action', guided by a situated assessment of first-hand practice experiences complementing collective evaluations of interventions such as 'pragmatic', 'sensible' and also 'legitimate'. Macro-institutional forces exerted influence either directly on individuals or indirectly by enriching the organisational cultural repertoire

Nora Virus Persistent Infections Are Not Affected by the RNAi Machinery

Drosophila melanogaster is widely used to decipher the innate immune system in response to various pathogens. The innate immune response towards persistent virus infections is among the least studied in this model system. We recently discovered a picorna-like virus, the Nora virus which gives rise to persistent and essentially symptom-free infections in Drosophila melanogaster. Here, we have used this virus to study the interaction with its host and with some of the known Drosophila antiviral immune pathways. First, we find a striking variability in the course of the infection, even between flies of the same inbred stock. Some flies are able to clear the Nora virus but not others. This phenomenon seems to be threshold-dependent; flies with a high-titer infection establish stable persistent infections, whereas flies with a lower level of infection are able to clear the virus. Surprisingly, we find that both the clearance of low-level Nora virus infections and the stability of persistent infections are unaffected by mutations in the RNAi pathways. Nora virus infections are also unaffected by mutations in the Toll and Jak-Stat pathways. In these respects, the Nora virus differs from other studied Drosophila RNA viruses

The function of fear in institutional maintenance: Feeling frightened as an essential ingredient in haute cuisine

Fear is a common and powerful emotion that can regulate behaviour. Yet institutional scholars have paid limited attention to the function of fear in processes of institutional reproduction and stability. Drawing on an empirical study of elite chefs within the institution of haute cuisine, this article finds that the multifaceted emotion of fear characterised their experiences and served to sustain their institution. Chefs’ individual feelings of fear prompted conformity and a cognitive constriction, which narrowed their focus on to the precise reproduction of traditional practices whilst also limiting challenges to the norms underpinning the institution. Through fear work, chefs used threats and violence to connect individual experiences of fear to the violation of institutionalized rules, sustaining the conditions in which fear-driven maintenance work thrived. The study also suggests that fear is a normative element of haute cuisine in its own right, where the very experience and eliciting of fear preserved an essential institutional ingredient. In this way, emotions such as fear do not just accompany processes of institutionalization but can be intimately involved in the maintenance of institutions

Machina ex Deus? From Distributed to Orchestrated Agency

In this chapter, the author draws on a historical case study of the Australian wine industry to explore variations in collective agency. The inductively derived process model illustrates the emergence of a new profession of scientific win- emaking, which unfolds in three phases. Each phase is characterized by a dis- tinct form of agency: distributed agency during the earliest phase, coordinated agency during later phases, and orchestrated agency during consolidation. In addition to exploring the temporal shifts in agency, the study includes a detailed analysis of the early stages of distributed agency, examining how col- lective agency is achieved in the absence of shared intentions

Contribution of NADPH Oxidase to Membrane CD38 Internalization and Activation in Coronary Arterial Myocytes

The CD38-ADP-ribosylcyclase-mediated Ca2+ signaling pathway importantly contributes to the vasomotor response in different arteries. Although there is evidence indicating that the activation of CD38-ADP-ribosylcyclase is associated with CD38 internalization, the molecular mechanism mediating CD38 internalization and consequent activation in response to a variety of physiological and pathological stimuli remains poorly understood. Recent studies have shown that CD38 may sense redox signals and is thereby activated to produce cellular response and that the NADPH oxidase isoform, NOX1, is a major resource to produce superoxide (O2·−) in coronary arterial myocytes (CAMs) in response to muscarinic receptor agonist, which uses CD38-ADP-ribosylcyclase signaling pathway to exert its action in these CAMs. These findings led us hypothesize that NOX1-derived O2·− serves in an autocrine fashion to enhance CD38 internalization, leading to redox activation of CD38-ADP-ribosylcyclase activity in mouse CAMs. To test this hypothesis, confocal microscopy, flow cytometry and a membrane protein biotinylation assay were used in the present study. We first demonstrated that CD38 internalization induced by endothelin-1 (ET-1) was inhibited by silencing of NOX1 gene, but not NOX4 gene. Correspondingly, NOX1 gene silencing abolished ET-1-induced O2·− production and increased CD38-ADP-ribosylcyclase activity in CAMs, while activation of NOX1 by overexpression of Rac1 or Vav2 or administration of exogenous O2·−significantly increased CD38 internalization in CAMs. Lastly, ET-1 was found to markedly increase membrane raft clustering as shown by increased colocalization of cholera toxin-B with CD38 and NOX1. Taken together, these results provide direct evidence that Rac1-NOX1-dependent O2·− production mediates CD38 internalization in CAMs, which may represent an important mechanism linking receptor activation with CD38 activity in these cells