Зрительское кресло для учреждений культуры

Выпускная квалификационная работа посвящена проектированию зрительского кресла для учреждений культуры. Несмотря на то, что в дизайне делается уклон на особенности кинокресел, разработанный проект универсален и для других учреждений культуры, таких как театры, концертные залы, библиотеки и др. Особенностью и уникальной чертой кресла является встроенная барьерная защита, выполняющая профилактическую функцию по защите человека от распространения респираторных инфекций, передающихся воздушно-капельным путём. Объект исследования. Мебель для общественного пользования. Предмет исследования. Разработка зрительского кинокресла, универсально подходящего и для иных учреждений культуры благодаря некоторым трансформируемым элементам.The graduation project is aimed to design a cinema seating suitable for several other entertaining institutions. The unique feature of the seating is a build-in barrier screen, designed to keep people safe from airborne infections. The result of the work is a design solution for a cinema chair that meets the modern requirements of comfort, convenience and safety. The project offers options for solving some uncomfortable aspect of cinema settings, such as ineffective navigation in the audience hall, lack of storage for personal belongings, low level of ergonomics, etc. The graduation project includes an introduction, five chapters, a conclusion, a list of used sources and additions to the chapters

Прогнозирование цен акции с помощью нейронной сети

В данной работе были созданы две модели рекуррентных нейронных сетей типа LSTM и GRU, обученные на котировках цен акций из индекса ММВБ-10 в период с 01.01.2019 - 31.05.2021. В первом разделе были рассмотрены теоретические аспекты работы нейронных сетей. Во втором разделе были созданы и обучены модели. Были сделаны предсказания, оценены ошибки каждой модели.In this work, two models of recurrent neural networks of the LSTM and GRU type were created, trained on stock price quotes from the MICEX-10 index in the period from 01.01.2019 - 31.05.2021. In the first section, the theoretical aspects of the operation of neural networks were considered. In the second section, the models were created and trained. Predictions were made, and the errors of each model were estimated

Разработка автоматической системы регулирования температуры перегретого пара парогенератора БКЗ- 220-100 Степногорской ТЭЦ

Целью работы является разработка АСР температуры перегретого пара парового котла с использованием современных технических средств автоматизации. В ходе выполнения работы была разработана конструкторская документация, осуществлен подбор технических средств автоматизации, а также разработано прикладное программное обеспечение. В дополнительных разделах была проведена оценка коммерческой ценности проекта и представлены меры по снижению вредных и опасных факторов.The aim of the work is to develop ACS temperature of superheated steam in a steam boiler, using modern technical means of automation. In the course of work the design documentation was developed, the selection of technical means of automation was carried out, and the applied software was developed. In additional sections, the commercial value of the project was assessed and measures to reduce harmful and hazardous factors were presented

Primer for Experimental Methods in Organization Theory

Experiments have long played a crucial role in various scientific disciplines and have been gaining ground in organization theory, where they add unique value by establishing causality and uncovering theoretical mechanisms. This essay provides an overview of the merits and procedures of the experimental methodology, with an emphasis on its application to organization theory. Drawing on the historical roots of experiments and their impact across science, we argue the method holds immense potential for furthering organization theory. We highlight key advantages of experimental methods, including high internal and construct validity, vividness in communicating findings, the capacity to examine complex and understudied phenomena, and the identification of microfoundations and theoretical mechanisms. We alleviate some concerns about external validity and offer guidance for designing and conducting sound, reproducible experimental research. Ultimately, we contend that the current experimental turn holds the potential to reorient organization theory. History: This paper has been accepted for the Organization Science Special Issue on Experiments in Organizational Theory. Funding: This work was supported by the Otto Moensted Foundation, which granted the Otto Moensted Visiting Professorship to S. S. Levine, and a National Science Foundation CAREER Award from the Directorate for Social, Behavioral and Economic Sciences [Grant 1943688] to O. Schilke. Supplemental Material: The online appendix is available at https://doi.org/10.1287/orsc.2023.18093

Proposed identification of Hubble Deep Field submillimeter source HDF 850.1

The IRAM interferometer has been used to detect the submm source HDF 850.1 found by Hughes et al. (1998) in the Hubble Deep Field. The flux density measured at 1.3mm is 2.2 mJy, in agreement with the flux density measured at the JCMT. The flux densities and upper limits measured at 3.4, 2.8, 1.3, 0.85, and 0.45 mm show that the emission is from dust. We suggest that the 1.3mm dust source is associated with the optical arc-like feature, 3-593.0, that has a photometric redshift of about 1.7. If HDF 850.1 is at this redshift and unlensed, its spectral energy distribution, combined with that of 3-593.0, matches closely that of the ultraluminous galaxy VII Zw 31. Another possibility is that the dust source may be gravitationally lensed by the elliptical galaxy 3-586.0 at a redshift of 1.Comment: 12 pages, 6 figure

Customer Interaction and Innovation in Hybrid Offerings:Investigating Moderation and Mediation Effects for Goods and Services Innovation

Hybrid offerings are bundles of goods and services offerings provided by the same firm. Bundling value offerings affects how firms innovate, interact with customers, and customize their goods and services. However, it remains unclear how customer interaction might drive the innovation performance of various bundled components. Therefore, this study investigates the effects of customer interactions and service customization on both goods and services innovations in a hybrid offering context, using a unique data set of 146 information technology and manufacturing firms. Customer interaction appears beneficial to both goods and services innovation in a hybrid offerings context, but service customization has different direct effects on goods versus services innovation. As a potential mediator, customer knowledge mobilization resources exert different effects on the goods and services elements of hybrid offerings. Furthermore, for high-interaction customers, medium levels of technical modularity lead to most favorable innovation outcomes for services innovation. The results thus suggest that providers of hybrid offerings should foster customer interactions, to drive the innovation performance of the good and service components, while still making sure to implement service customization strategies. These findings have notable implications for service innovation research

Exercise interventions and patient beliefs for people with hip, knee or hip and knee osteoarthritis : a mixed methods review

BACKGROUND: Chronic peripheral joint pain due to osteoarthritis (OA) is extremely prevalent and a major cause of physical dysfunction and psychosocial distress. Exercise is recommended to reduce joint pain and improve physical function, but the effect of exercise on psychosocial function (health beliefs, depression, anxiety and quality of life) in this population is unknown. OBJECTIVES: To improve our understanding of the complex inter-relationship between pain, psychosocial effects, physical function and exercise. SEARCH METHODS: Review authors searched 23 clinical, public health, psychology and social care databases and 25 other relevant resources including trials registers up to March 2016. We checked reference lists of included studies for relevant studies. We contacted key experts about unpublished studies. SELECTION CRITERIA: To be included in the quantitative synthesis, studies had to be randomised controlled trials of land- or water-based exercise programmes compared with a control group consisting of no treatment or non-exercise intervention (such as medication, patient education) that measured either pain or function and at least one psychosocial outcome (self-efficacy, depression, anxiety, quality of life). Participants had to be aged 45 years or older, with a clinical diagnosis of OA (as defined by the study) or self-reported chronic hip or knee (or both) pain (defined as more than six months' duration). To be included in the qualitative synthesis, studies had to have reported people's opinions and experiences of exercise-based programmes (e.g. their views, understanding, experiences and beliefs about the utility of exercise in the management of chronic pain/OA). DATA COLLECTION AND ANALYSIS: We used standard methodology recommended by Cochrane for the quantitative analysis. For the qualitative analysis, we extracted verbatim quotes from study participants and synthesised studies of patients' views using framework synthesis. We then conducted an integrative review, synthesising the quantitative and qualitative data together. MAIN RESULTS: Twenty-one trials (2372 participants) met the inclusion criteria for quantitative synthesis. There were large variations in the exercise programme's content, mode of delivery, frequency and duration, participant's symptoms, duration of symptoms, outcomes measured, methodological quality and reporting. Comparator groups were varied and included normal care; education; and attention controls such as home visits, sham gel and wait list controls. Risk of bias was high in one and unclear risk in five studies regarding the randomisation process, high for 11 studies regarding allocation concealment, high for all 21 studies regarding blinding, and high for three studies and unclear for five studies regarding attrition. Studies did not provide information on adverse effects. There was moderate quality evidence that exercise reduced pain by an absolute percent reduction of 6% (95% confidence interval (CI) -9% to -4%, (9 studies, 1058 participants), equivalent to reducing (improving) pain by 1.25 points from 6.5 to 5.3 on a 0 to 20 scale and moderate quality evidence that exercise improved physical function by an absolute percent of 5.6% (95% CI -7.6% to 2.0%; standardised mean difference (SMD) -0.27, 95% CI -0.37 to -0.17, equivalent to reducing (improving) WOMAC (Western Ontario and McMaster Universities Osteoarthritis Index) function on a 0 to 100 scale from 49.9 to 44.3) (13 studies, 1599 participants)). Self-efficacy was increased by an absolute percent of 1.66% (95% CI 1.08% to 2.20%), although evidence was low quality (SMD 0.46, 95% CI 0.34 to 0.58, equivalent to improving the ExBeliefs score on a 17 to 85 scale from 64.3 to 65.4), with small benefits for depression from moderate quality evidence indicating an absolute percent reduction of 2.4% (95% CI -0.47% to 0.5%) (SMD -0.16, 95% CI -0.29 to -0.02, equivalent to improving depression measured using HADS (Hospital Anxiety and Depression Scale) on a 0 to 21 scale from 3.5 to 3.0) but no clinically or statistically significant effect on anxiety (SMD -0.11, 95% CI -0.26 to 0.05, 2% absolute improvement, 95% CI -5% to 1% equivalent to improving HADS anxiety on a 0 to 21 scale from 5.8 to 5.4; moderate quality evidence). Five studies measured the effect of exercise on health-related quality of life using the 36-item Short Form (SF-36) with statistically significant benefits for social function, increasing it by an absolute percent of 7.9% (95% CI 4.1% to 11.6%), equivalent to increasing SF-36 social function on a 0 to 100 scale from 73.6 to 81.5, although the evidence was low quality. Evidence was downgraded due to heterogeneity of measures, limitations with blinding and lack of detail regarding interventions. For 20/21 studies, there was a high risk of bias with blinding as participants self-reported and were not blinded to their participation in an exercise intervention. Twelve studies (with 6 to 29 participants) met inclusion criteria for qualitative synthesis. Their methodological rigour and quality was generally good. From the patients' perspectives, ways to improve the delivery of exercise interventions included: provide better information and advice about the safety and value of exercise; provide exercise tailored to individual's preferences, abilities and needs; challenge inappropriate health beliefs and provide better support. An integrative review, which compared the findings from quantitative trials with low risk of bias and the implications derived from the high-quality studies in the qualitative synthesis, confirmed the importance of these implications. AUTHOR'S CONCLUSIONS: Chronic hip and knee pain affects all domains of people's lives. People's beliefs about chronic pain shape their attitudes and behaviours about how to manage their pain. People are confused about the cause of their pain, and bewildered by its variability and randomness. Without adequate information and advice from healthcare professionals, people do not know what they should and should not do, and, as a consequence, avoid activity for fear of causing harm. Participation in exercise programmes may slightly improve physical function, depression and pain. It may slightly improve self-efficacy and social function, although there is probably little or no difference in anxiety. Providing reassurance and clear advice about the value of exercise in controlling symptoms, and opportunities to participate in exercise programmes that people regard as enjoyable and relevant, may encourage greater exercise participation, which brings a range of health benefits to a large population of people

Exercise and manual physiotherapy arthritis research trial (EMPART): a multicentre randomised controlled trial

BACKGROUND: Osteoarthritis (OA) of the hip is a major cause of functional disability and reduced quality of life. Management options aim to reduce pain and improve or maintain physical functioning. Current evidence indicates that therapeutic exercise has a beneficial but short-term effect on pain and disability, with poor long-term benefit. The optimal content, duration and type of exercise are yet to be ascertained. There has been little scientific investigation into the effectiveness of manual therapy in hip OA. Only one randomized controlled trial (RCT) found greater improvements in patient-perceived improvement and physical function with manual therapy, compared to exercise therapy. METHODS AND DESIGN: An assessor-blind multicentre RCT will be undertaken to compare the effect of a combination of manual therapy and exercise therapy, exercise therapy only, and a waiting-list control on physical function in hip OA. One hundred and fifty people with a diagnosis of hip OA will be recruited and randomly allocated to one of 3 groups: exercise therapy, exercise therapy with manual therapy and a waiting-list control. Subjects in the intervention groups will attend physiotherapy for 6-8 sessions over 8 weeks. Those in the control group will remain on the waiting list until after this time and will then be re-randomised to one of the two intervention groups. Outcome measures will include physical function (WOMAC), pain severity (numerical rating scale), patient perceived change (7-point Likert scale), quality of life (SF-36), mood (hospital anxiety and depression scale), patient satisfaction, physical activity (IPAQ) and physical measures of range of motion, 50-foot walk and repeated sit-to stand tests. DISCUSSION: This RCT will compare the effectiveness of the addition of manual therapy to exercise therapy to exercise therapy only and a waiting-list control in hip OA. A high quality methodology will be used in keeping with CONSORT guidelines. The results will contribute to the evidence base regarding the clinical efficacy for physiotherapy interventions in hip OA