Digital Commons Network^™

Nozzle Reactive Hydroturbine With Guide Device, O O. Bozarov, Kh S. Usarov, R Aliyev, S F. Ergashev

Technical science and innovation

The article presents the principle of operation of a jet turbine with a nozzle based on the "Segner" wheel and studies its shortcomings. In order to eliminate the identified shortcomings, a guide device was developed, which is installed inside the hydraulic turbine impeller. Using the Bernoulli equations and the Zhukovsky theory, the energy parameters of a microhydroelectric power station with a developed divertor device and the water flow rate in a hydroturbine are determined. The energy parameters calculated on the basis of theoretical results are analyzed, and it is found that the efficiency of a hydroturbine increases by 10-20% depending …

Preparation Of Azomethine Derivatives (Schif Bases) Chitosan Apis Mellifera, A S. Mengliev, G A. Ikhtiyarova

Technical science and innovation

Chitin and chitosan should be considered as derivatives of cellulose. The basis for such an approach to these polysaccharides is their chemical structure. The macromolecular chains of these polymers are formed by glucopyranose cycles, which, being connected by β- (1→4) glucosidic bonds, form linear polymer chains. The biological functions and mechanical properties of these polysaccharides are largely determined by the conformation of macromolecules and the distribution of reactive groups in them. Due to the unique properties of chitin and chitosan, they are becoming increasingly important in the practical and especially in the medical and biological activities of mankind. The aim …

Laboratory Analyzes For Determining The Antioxidant Activity Of Dried Red Hawthorn Fruits, T T. Raxmanova, N A. Afanaseva, Sh A. Sultanova

Technical science and innovation

This article analyzes the drying process of hawthorn fruit found in mountainous regions of our country. Since red hawthorn fruit is considered one of the main medicinal products, it is important to dry it while preserving its antioxidant properties. Blanching technology was used in a convective drying device for drying while maintaining the antioxidant properties of the object. In the process of blanching, a solution of ordinary water and citric acid was used. 1 and 1.5% solution of citric acid solution was selected. Blanching technology was used before drying the hawthorn fruit. Red hawthorn fruit was dried until 15% moisture …

Analysis Of Possible Causes Of Industrial Injuries And Accidents At Coal Industry Enterprises, F U. Otabekov, M Z. Naimova

Technical science and innovation

In this article, the issues that a person may face unfortunate events due to a certain reason due to the influence of various dangerous and harmful factors in the course of his life activities are resolved. Depending on the type and degree of exposure or the cause of the accident, the type and degree of injury may also vary. In most cases, injuries and damages occur suddenly and can lead to unexpected and unexpected consequences. Let's imagine that an unfortunate event happened by chance. In this situation, many people lose their senses, start to panic, hurry, become overly nervous or …

Efficiency Of Using Solar Collectors In Energy Saving And Saving Energy Resources, R R. Tillahodjaev, A A. Mirzayev

Technical science and innovation

Most manufacturers, suppliers and installers make only a rough calculation of solar collectors. The article goes step-by-step calculation, solar systems for heating, in order to fully provide the house with warmth in winter. Calculation of the real power of the solar collector. Calculation of the efficiency of the solar collector in the direction. Calculation of solar collector performance by installation angle. Features of flat panels. The performance of the vacuum manifold. How many solar collectors do you need to heat your home? Hot water connection.

Evaluation Of Energy Efficiency Of Photoelectric Heat Batteries With Mechanism Of Solar Observation, M N. Tursunov, X Sabirov, I A. Yuldoshev, U R. Xolov

Technical science and innovation

Cooling of the rear surface of photoelectric batteries (PEB) was investigated by attaching a newly designed heat collector made of parallel channel cellular polycarbonate to the rear surface in order to improve the electrical and thermal efficiency in this research work. The experiment was conducted on June 7, 2022 at the Heliopolygon of the Physical-Technical Institute of Tashkent city (latitude: +41,34 (41°20'23"N), longitude: +69,3 (69°17'36"E). 2 340 W monocrystalline silicon PEBs(photoelectric batteries) were used as experimental devices. The rear surface of the first is equipped with a cooling …

Effect Of Perceived Job Risk On Organizational Conflict In Tourism Organizations: Examining The Roles Of Employee Responsible Behavior And Employee Silence, Jun Yu, Chaowu Xie, Songshan (Sam) Huang

Research outputs 2022 to 2026

Job risk and organizational conflict create pervasive dilemmas within the tourism industry that significantly concern managers and practitioners. However, little research has informed the relationship between job risk and organizational conflict. Based on conservation of resources theory, this study adopted a multi-study design and examined the effect of perceived job risk on organizational conflict in the tourism industry in both tourist hotels (Study 1, n = 495) and tourist attractions (Study 2, n = 401). In addition, the roles of employee responsible behavior and employee silence in moderating the effect of job risk on organizational conflict were examined. Study 1 …

Case Study: Exploring Pre-Schoolers’ Attitudes And Behaviour Towards The Environment, K Paal

Plymouth Institute of Education

No abstract provided.

Opening The Halls Of Power: Implementing A Community Organizing Approach To Parent Engagement In New York City’S Community Schools, Andrew R. King

Graduate Doctoral Dissertations

Under former Mayor Bill de Blasio, New York City launched a Community Schools Initiative (NYC-CS) in 2014 that now includes more than 300 schools, making it the largest school improvement plan of its kind in the country. Bloomberg, the previous mayor, had championed market-based reform strategies by closing struggling public schools and replacing them with privately run charter schools. In contrast, the community schools model supports struggling schools by providing them with wraparound services to address not only the academic—but also the health, social, and emotional—needs of the “whole child.” Research has shown the NYC initiative has had positive impacts …

Central Americans At A Crossroads: Asylum Seekers’ Testimonios Of Mental Health After Detention And Family Separation, Corie E. Schwabenland Garcia

Master's Theses

Though Central American asylum seekers are presently hypervisible in the U.S. consciousness, this population continues to be inadequately understood or cared for. Discussion of this population often presents them as a helpless and damaged population, in need of saving, fixing, or shelter -- beyond their trauma, they cease to exist. This qualitative study utilizes first-person testimonio methodology to understand the psychological experiences of Central American migrants seeking asylum in the United States, the stressors they face, and the mental health support that can and should be provided to them. Their stories speak to a space of sociopolitical precarity in the …

Effect Of Playstation® Vr Sessions On Health-Related Quality Of Life And Motor Function In Stroke Patients Undergoing Inpatient Rehabilitation, Chien-Min Chen, Yi-Ching Huang, Kuan-Yu Kung, Yun-Chien Li, I-Lin Yen, Shih-Che Lin, Chu-Hsu Lin, Chia-Hung Lin

Rehabilitation Practice and Science

Background: Virtual Reality (VR) systems have been introduced for rehabilitation of stroke patients. Existing evidence regarding the effects of fully-immersive commercial games on health-related quality of life (HRQOL) and motor function in stroke patients is limited. Objective: To evaluate the efficacy of seven supplemental PlayStation® VR sessions on the HRQOL and motor function of stroke patients undergoing inpatient rehabilitation during a 16-day study period within the first year after stroke. Methods: A randomized, single-blind clinical trial with parallel groups (VR plus conventional therapy vs. conventional therapy) was carried out. For the assessment of outcome measures, the Stroke Impact Scale (SIS) …

The Use Of Ultrasonography In Suspected Tibia Plateau Fracture With Lipohemarthrosis: A Casereport, Wei-Nung Hsu, Pon-An Chen, Sen-Wei Tsai

Rehabilitation Practice and Science

Knee pain is a common complaint in rehabilitation outpatient clinics. Plain radiography is typically used to detect knee pain and trauma. However, a slight depression plateau fracture could be easily overlooked on plain radiography. This is a casereport of a 57-year-old woman with left knee pain who visited the outpatient clinic for help. Ultrasonography showed fat-fluid level, but plain radiography did not reveal any fracture. Magnetic resonance examination confirmed the depression fracture of the tibial plateau and the lipohemarthrosis. Lipohemarthrosis is a highly sensitive predictor of intra-articular surface fractures. Ultrasound is a convenient and reliable tool to detect lipohemarthrosisof the …

Penggunaan Tanah Masyarakat Untuk Kepentingan Penempatan Tiang Listrik Pln Berdasarkan Perspektif Hukum Perjanjian, Lolita Adhyana Joedo

Jurnal Hukum & Pembangunan

PLN dalam menyalurkan listrik menggunakan tanah milik orang termasuk untuk memasang tiang listrik. Penggunaan tanah tersebut atas ijin dari Pemilik Tanah. Dalam perkembangannya tanah mengalami peralihan hak dan daerah lokasi tiang listrik PLN telah berkembang pesat, yang berdampak masyarakat merasa terganggu dengan kehadiran tiang listrik yang lebih dulu ada, sehingga meminta tiang listrik dipindahkan. Permintaan pindah tiang listrik PLN telah menjadi polemik, karena masyarakat keberatan harus menanggung biaya pindah tiang listrik. Pembebanan biaya tersebut disebabkan pekerjaan pindah tiang listrik membutuhkan biaya pekerjaan dan kompensasi yang harus dibayar oleh PLN kepada masyarakat di area yang terdampak pemadaman listrik akibat permintaan pindah …

An International Review – Carrying The Torch Of Anthony D. Smith’S Goal To Map The Field Of Nationalism Studies, Et Woods, R Schertzer

School of Law, Humanities and Social Sciences

We are delighted to provide readers of Studies of National Movements (SNM) a brief update on the recent work and future directions of the State of Nationalism (SoN).

Analysis Of Methods Of Construction And Application Of Modern Anti-Radar Missiles, A S. Solonar, P A. Khmarski, B M. Mukhammedov, G Sh Tuganov

Technical science and innovation

The analysis of methods of construction and application of modern anti-radar missiles (ARM) is carried out. The analysis allowed us to identify the most distinctive features of ARM such as: high flight speed (600-1200 m/s), limited launch range, different flight paths and it is oriented towards the attacked radar, small effective distribution surface (ESR), due to a sharp increase in the weight and size characteristics of the homing head of the homing head outside the frequency range (from 0.5 to 40 GHz), radio electronic means of the ARM are not created, the large range and high speed of tuning the …

Formation Of A Geological Model Of Oil And Gas Fields Based On New Geological And Geophysical Data (By The Example Of The Kultak Field), D A. Akhmedova, O A. Karshiev, E T. Matkarimov, A A. Elomonov, U B. Fayzullaev

Technical science and innovation

The article presents the results of building a geological model of oil and gas fields based on new geological and geophysical data on the example of the Kultak field. Using the Schlumberger-Petrel software package, it is recommended that to build permanent models of oil and gas fields, a geological model was built.

Research Of Factors Affecting The Efficiency Of Rock Breaking Equipment, J A. Tursunov, R U. Jurayev

Technical science and innovation

Nowadays 35-40 % of all the drilling works, performed on mining and geological exploration enterprises, are made by air bottom hole cleaning, and the rest 60-65 % are made by flushing liquids on water base. Air drilling and bottom hole cleaning due to low heat conductivity of air generates high temperature at a borehole bottom thus negatively affecting the efficiency of rock destruction tool; while drilling with water based flushing fluids causes efficiency reduction of rock destruction tool due to formation of slurry mode at a borehole bottom. This paper presents the results of the study of the factors negatively …

Manufacturing Of Instrument Structures From Formed Silicide Films, I R. Bekpulatov

Technical science and innovation

This work provides information on the formation of the main part of thermal radiation receivers. In addition, the article defines and creates optimal modes for creating targets for magnetron sputtering from higher manganese silicide (Mn4Si7) and cobalt monosilicide (CoSi). As is known, the device is formed from a two - type film, where the Mn4Si7 film gives the p - type, and the CoSi film gives the n - type. Films were formed using these targets by magnetron sputtering and their electrophysical properties were studied. The results obtained showed that the resulting films …

Stigma Pekerja Terhadap Penyandang Disabilitas Di Tempat Kerja, Ella Ayu Septia Mustika, Ella N. Hadi, Anharudin Anharudin, Aziz Rofi’I, Siti Nurmala Dewi

Perilaku dan Promosi Kesehatan: Indonesian Journal of Health Promotion and Behavior

Background: Inclusiveness in the workplace for workers with disabilities is required and regulated by the government. However, workers with disabilities face challenges in fulfilling their right to obtain decent work and the stigma from colleagues. This situation affects the performance of workers with disabilities, which in the long run will affect company performance. Objective: This study aims to describe the stigma of workers against workers with disabilities in the workplace. Method: The study was a descriptive study with a cross-sectional study design. The population was workers working for at least three months. The sampling technique was accidental sampling by filling …

A Comparison Of Techniques Of Boron Removal From Water And Wastewater, Abdolmajid Fadaei

Journal of Environmental Science and Sustainable Development

Boron is a vital trace element required by plants, humans, and animals. It is also a significant element used in several industries. Along with the widespread usage of boron, boron waste progressively contaminates the potable water sources as well as causing a chain of environmental and health challenges to occur. This study reviews the techniques used for boron removal from aqueous solutions, including ion exchange, resin adsorption, reverse osmosis (RO), electrocoagulation, microfiltration, chemical coagulation, solvent extraction, electro dialytic, and hybrid processes. A review search was carried out from the databases Scopus, PubMed, Web of Knowledge, and Embase using the following …

Information Sustainability Of Islamic Education Centers Through Website Digitization, Renny Nurhasana, Nurul Muhafilah, Nur Arning Tengara Kasih

Journal of Environmental Science and Sustainable Development

Islamic education of Taman Pendidikan Al-Quran (TPA) is an Al-Quran Learning Center that gives informal religious education to guide children to know Islamic values from an early age. TPA Ikhlasul Machfudz was established since 2006 that, in addition to Al-Quran, the center also teaches children with English, Marawis (voices with strong religious elements) and Qasidah (lyrics that are related to Islamic values). However, since the COVID-19 pandemic occurred in 2020, the learning process has stopped completely due to the policy of learning from home. There are many obstacles to teach from home using online learning method. Teachers realized the importance …

Exploratory Study On Human Factors Affecting Safety In The Shipyard Of Pakistan, Bisma Khan

World Maritime University Dissertations

The study of human factors has emerged as a critical element in understanding and improving the safety requirements of Pakistan’s shipyard. The dissertation attempts to study human factors in the risk-based environment and challenging duties of the employees associated with shipyard resulting in accidents and injuries.

While technology and equipment contribute to safety, human actions, decisions, and behaviours often play a critical role in causing accidents. As the number of accidents was increasing in the shipyard, the researcher realised the need to explore contributing factors. A quantitative survey approach was adopted to collect information. The results were compared among employees …

Kdm6b Variants May Contribute To The Pathophysiology Of Human Cerebral Folate Deficiency, Xiao Han, Xuanye Cao, Robert M Cabrera, Paula Andrea Pimienta Ramirez, Cuilian Zhang, Vincent T Ramaekers, Richard H Finnell, Yunping Lei

Faculty, Staff and Students Publications

(1) Background: The genetic etiology of most patients with cerebral folate deficiency (CFD) remains poorly understood. KDM6B variants were reported to cause neurodevelopmental diseases; however, the association between KDM6B and CFD is unknown; (2) Methods: Exome sequencing (ES) was performed on 48 isolated CFD cases. The effect of KDM6B variants on KDM6B protein expression, Histone H3 lysine 27 epigenetic modification and FOLR1 expression were examined in vitro. For each patient, serum FOLR1 autoantibodies were measured; (3) Results: Six KDM6B variants were identified in five CFD patients, which accounts for 10% of our CFD cohort cases. Functional experiments indicated that these …

Human Papillomavirus Dose Reminder Preferences Among Parents From A Diverse Clinical Sample: A Qualitative Study, Jacqueline M Hirth, Kayla A Eboreime, Leslie E Cofie, Richard E Rupp, Abbey B Berenson

Faculty, Staff and Students Publications

Reminders are an important method for encouraging patients to return for follow-up visits, such as for successive doses of the human papillomavirus (HPV) vaccine. However, patients may have preferences for different types of reminders. This study examined which reminder methods parents of pediatric patients found most useful and their thoughts on how the reminders helped them to complete their children's HPV vaccine series. This qualitative study was conducted on a purposively sampled group of parents who participated in a multi-level intervention intended to improve uptake and completion of the HPV vaccine series. Parents who agreed to participate were interviewed by …

Carlo Barone (1955–2022), Adrian Walter

Soundboard Scholar

Carlo Barone (1955–2022) was a pioneering performer, researcher, and educator in the nineteenth-century performing practice of the guitar. In this tribute, his friend and collaborator Adrian Walter describes Barone's career.

Issues In Transcribing German Lute Tablature, Kurt Dorfmüller

Soundboard Scholar

Kurt Dorfmüller's essay is from Le luth et sa musique, a volume of proceedings from the 1957 research symposium of the same name that gathered a number of eminent scholars at the beginning of the modern era of lute scholarship and performance revival. In it, he inquires into the unique nature of German lute tablature, its mostly latent capacity for expressing polyphony, and the types of music for which it is more or less suited. He ends by proposing a set of guidelines for establishing a "mainstream practice" for transcription not only from German tablature but also from tablature …

Health Outcomes Of Fitbit, Garmin Or Apple Watch-Based Interventions: A Systematic Review Of Systematic Reviews, Hossein Motahari-Nezhad, Fateme Zare, Hadi Akbari, Aslan Sadeghdaghighi

Baltic Journal of Health and Physical Activity

Introduction: A rising number of systematic reviews of smartwatch clinical effectiveness have been published; however, the findings are conflicting and need further investigation. Our purpose was to assess the methodological and evidence synthesis quality of meta-analyses of the therapeutic efficacy of Fitbit, Garmin, or Apple Watch-based interventions. Material and Methods: Systematic searches were carried out with three electronic databases from inception to October 2021. Full text systematic reviews originally published in English in peer-reviewed journals describing meta-analyses of all clinical outcomes of Fitbit-, Garmin-, or Apple Watch -based interventions were eligible for this study. The Amstar-2 scale and GRADE were …

The Effect Of Core Training On Dynamic Balance And Strength Endurance In Junior Field Hockey Players, Senthilkumar Ramasamy, John Franklin, Pitchaimani Govindhara, Suganya Panneerselvam

Baltic Journal of Health and Physical Activity

Introduction: The objective of this study is to find the effectiveness of core muscle strength training on dynamic balance and muscle endurance among junior field hockey players. Material and Methods: The study was conducted with 30 regular junior hockey players (15 in the control group and another 15 in the experimental group). The modified Star Excursion Balance Test (mSEBT) and Biering-Sorensen muscle endurance tests are used to assess dynamic balance and endurance. In the control group, the participants continued their formal training without undergoing any intervention. At the same time, the players in the experimental group performed the core muscle …

Capitalism And The Post-Socialist Road To Hell, Artemy Magun

Emancipations: A Journal of Critical Social Analysis

No abstract provided.

Effects Of Bisphenol A And Nicotine On Cytochrome P450s In Brain And Liver Of Pregnant Rats, Mohammad Merii, Manal Fardon, Mahmoud Khalil

BAU Journal - Science and Technology

Bisphenol A (BPA), a widely used chemical, is associated with endocrine disruption through its interactions with the aryl hydrocarbon receptor (AhR). BPA crosses into the human body mostly through migration from plastic packaging into the daily diet. AhR regulates the expression of drug-metabolizing enzymes (DMEs), including numerous CYP450s, and mediates xenobiotic reactions. This study aims at examining how the expression of CYP450s expression is affected, in the brain and liver of pregnant rats, by exposure to BPA and nicotine. Pregnant female Sprague-Dawley dams were exposed to increasing doses of BPA; 0 (control), 50, 500, and 5000 g/kg/day , or in …