bluuebunny/crossref_metadata_2025 huggingface dataset:
A Comparison of High-Fidelity Simulation Approaches for Interactional Aerodynamics of Multirotor Systems in Forward Flight
Authors:   Rensselaer Polytechnic Institute, Chopra Abhishek , Healey Richard , Gandhi Farhan , Sahni Onkar
Published: September 2022

Recent advancements in distributed electric propulsion for urban air mobility applications have made interactional aerodynamics more common on modern rotorcraft designs. Rotor-to-rotor interactions are associated with complex f low features, and require high-fidelity numerical tools for adequate analysis and prediction. The computational cost associated with resolving these aerodynamic interactions can become prohibitively expensive, particularly when simulations over a multitude of operating conditions/configurations are desired. As an alternative to the typical bladeresolved DDES (BR-DDES) approach, an actuator line model with LES (ALM-LES) is considered for its high fidelity aerodynamic prediction capabilities at a reduced computational cost. In this study, flow field and rotor performance predictions using ALM-LES are compared to BR-DDES in order to evaluate the merits of ALM-LES for interactional aerodynamic analysis. Overall, the wake structure of the two-rotor system shows good agreement between the two methods. Integrated thrust is also predicted similarly, with a difference of 2.4% for the front rotor and 4.3% for the aft rotor. While integrated thrust is predicted well by ALM-LES, some discrepancies in sectional thrust are observed in areas with blade-vortex interaction (BVI). The vortex position compares well between the two methods, so the sectional thrust difference is tied to differences in vortex strength and how well ALM is able to represent a BVI. Sectional thrust differences are also observed on the aft rotor and are associated with secondary vortices convecting into the rotor plane. Despite differences in parts of the rotor disk with BVI, ALM-LES is shown to be capable of predicting the interactional aerodynamics of a two-rotor system in forward flight at about 1% the computational cost of BR-DDES.
Bolt Hole Corrosion and Fatigue Damage Repair in Hybrid Vertical Lift Structure
Authors:   PartWorks, Restis Jude , Dubberly Mike
Published: September 2022

Cold expansion has been successfully used in aerospace structures, including vertical lift airframes to repair and prevent fatigue damage for more than 50 years. PartWorks is innovating the cold expansion process, parts and tooling for use in repairing corroded fastener holes (U.S. Patent 11,255,371). PartWorks is participating in a two phase development and demonstration program, first for the US Navy (Office of Naval Research/ONR) starting in 2017, and more recently for the United States Air Force (Air Force Research Lab/AFRL) for repairs to bolt holes on aerospace structures with metal/carbon-fiber composite skins. These locations in aerospace structures for vertical lift or fixed wing have demonstrated greater levels of corrosion when compared to all-metal structural skin due to galvanic corrosion between metal and carbon fiber composites. Existing repair methods for these metal/carbon fiber composite skin bolt hole/fastener sites often involve extensive removal of corrosion, non-standard or oversized holes, and extensive modeling/validation to prove repair effectiveness. Existing repairs can also lead to premature structural component replacement. This project is evaluating a new repair method that uses cold expansion with thin wall bushings and/or a rivetless nut plate (RNP) to restore fatigue life to the metal bolt hole if damage is missed or potentially without having to remove all the damage/corrosion.
Rotorcraft Digital Twin: Exploiting On-board Data for Enhancing Sustainment and Operational Availability
Authors:   Sikorsky a Lockheed Martin Company, Harrigan Matt , Sarlashkar Avinash , Beale(Jr.) Raymond , Kloda Jared , Kruse Mark , Vanill Dennis
Published: September 2022

Rotorcraft Digital Twin (RDT) is a Digital Transformation initiative to leverage on-board flight data, design data, maintenance records, and advanced analytical models to enhance the current sustainment paradigm, increase availability, reduce life-cycle cost, and to enable optimization of future designs. Many core capabilities have been integrated into RDT, such as load estimation, advanced regime recognition, gross weight estimation, fatigue damage accrual calculations, among others, which leverage a rich body of prior work. Multiple algorithms enable component life extensions, predictive maintenance, selection of the optimal set of assets for a particular mission or deployment to minimize the likelihood of unscheduled maintenance, supporting the Rotorcraft Structural Integrity Program (RSIP) requirements, and feeding field data back into the design process for continuous product improvements. A robust, generic, and reusable suite of algorithms and associated framework has been developed utilizing a common data model where possible. RDT has been developed with a modern cloud-native microservice software architecture which glues together carefully selected Free and Open-Source Software (FOSS) components.
Vitrimer Carbon Fiber Composites for Rotorcrafts Components with Fatigue Reverse Ability
Authors:   Rensselaer Polytechnic Institute, Kamble Mithil , Pranompont Sikharin , Picu Catalin , Koratkar Nikhil
Published: September 2022

As rotorcrafts enter new generation of their design, they are expected to be subjected to more stringent performance requirement, Increased loads and operational frequency necessitates use of structural components with higher fatigue life. Carbon fiber reinforced polymer composites (CFRP) are popular as structural material due to their superior performance while being lightweight. However, fatigue originating in weaker polymer limits their fatigue life, moreover the fatigue damage introduced accumulated irreversibly resulting in catastrophic failure. The damage is irreversible due to permanent crosslinked nature of thermoset polymers used in CFRP. If the crosslinks are made dynamic i.e. reversibly crosslinked, the fatigue damage may be reversed imparting ultra-high fatigue life to the components. Vitrimers are such epoxy based networks which may be ideal candidate for this application as they possess ability to dynamic crosslinking at elevated characteristic temperature. Here we report a vitrimer based CFRP i..e., vCFRP which has properties comparable to conventional CFRP which has ability to retain its original properties in fatigue tests when they are subjected to periodic heating. The fractographic analysis suggests that periodic heating serves dual purpose of enabling dynamic crosslinking as well as repairing small scale fiber-matrix interface failure. Thus, rotorcraft components made with vCFRP may have very high fatigue life compared to conventional CFRP components.
Nonlinear Finite Element Analysis of a Sharp Radius on the Shank of a Ring Locked Stud
Authors:   Sikorsky a Lockheed Martin Company, Liu Lin , Binney David
Published: September 2022

This paper documents an investigation of the effect of a sharp radius on the shank of a ring locked stud. An industry specification for studs does not define a minimum size for the radius and very sharp radii have been found during inspection of some studs. Finite element analysis (FEA) is used to evaluate the stud as part of an assembled joint subject to fatigue loading. A parametric study is conducted, and high-fidelity modeling is adopted to correlate the FEA results with stud testing results. After a validated FEA model is confirmed, the elastic-plastic stress strain curve is applied in the FEA model. Three sizes of the radius are introduced in the model to evaluate the radius size effect on the vibratory stress under operational loads. The evaluation demonstrates that the radius size has a significant impact on its vibratory stress which in turn affects the calculated fatigue life.
Full-Scale Investigation of Rotor/Obstacle Interactions using an Elevated Fixed Platform
Authors:   NAVAIR Applied Aerodynamics, Silva Mark ,   U.S. Naval Test Pilot School, Holder John , Hayden Eric , Myers Leighton , Tritschler John
Published: September 2022

A unique shore-based facility and flight tests designed to investigate rotor/obstacle aerodynamic interactions under low wind speed conditions were planned and carried out in 2020 at Naval Air Station (NAS) Patuxent River. A temporary elevated fixed platform (EFP) sized to represent the aft half of an LPD-17 flight deck was built out of stacked CONEX shipping containers on a closed taxiway. The EFP walls were instrumented with ultrasonic anemometers to gather velocity flow field measurements as various rotorcraft executed simulated recovery profiles to and hover ladders near the EFP. The EFP was subsequently reconfigured to conduct a confined landing area investigation. The simultaneous acquisition of aircraft performance data and flow field data will be invaluable for the validation of the Navy's shipboard operations modeling and simulation tools, maximizing the Navy's return on investment in building the temporary EFP facility.
Dynamic Stall Investigation on a Rotating semi-elastic Double-swept Rotor Blade at the Rotor Test Facility Gottingen
Authors:   German Aerospace Center (DLR), Müller Martin ,   Institue of Aerodynamics and Flow Technology, Braukmann Johannes , Weiss Armin
Published: September 2022

Experimental investigations of three-dimensional dynamic stall on a four-bladed Mach-scaled semi-elastic rotor with an innovative double-swept rotor blade planform are presented. The study focuses on the coupling between the aeroelastic behavior of the blade and the underlying aerodynamics. Blade bending moment and flap displacement measurements were conducted using strain gauges and optical tracking of blade tip markers. The aerodynamic behavior was characterized by means of unsteady surface pressure measurements using unsteady pressure-sensitive paint (iPSP) across the outer 65 % of the blade span and fast response pressure transducers at discrete locations. Different cyclicpitch settings were investigated at a rotation frequency of frotor = 23.6 Hz, that corresponds to blade tip Mach and Reynolds numbers of Mtip = 0.282- 0.285 and Retip = 5.84- 5.95 x 105. The findings reveal a detailed insight into the non-linear behavior in the flap movement during downstroke. iPSP and pressure transducer data indicates that this non-linear flap behavior is caused by a radially phase-shifted dynamic stall process at the forward and backward swept part of the blade.
BETWEEN THE TWO OCEANS OF INDO-PACIFIC: Strengthening the Myanmar–Thailand Southern Corridor
Authors: Chirativat Suthiphand , Tingsabadh Charit , De Prabir
Published: September 2022

The idea of connectivity is an integral part of regionalism in international trade and integration. The focus in this book is particularly on the so-called southern East–West Economic Corridor which consists of the connections between the southern part of Myanmar and the western part of the central region of Thailand. Between the Two Oceans of Indo-Pacific covers a diverse range of topics in the fields of geography, history, archaeology, international trade, tourism, migration and infrastructure for transport. This book is an effort to understand these for a better future for ASEAN as well as India. The findings of this book may help strengthen the ASEAN integration process on its way towards 2025.
Integrated dataset of the Korean Genome and Epidemiology Study cohort with estimated air pollution data
Authors: Woo Hae Dong , Song Dae Sub , Choi Sun Ho , Park Jae Kyung , Lee Kyoungho , Yun Hui-Young , Choi Dae-Ryun , Koo Youn-Seo , Park Hyun-Young
Published: September 2022

Public concern about the adverse health effects of air pollution has grown rapidly in Korea, and there has been increasing demand for research on ways to minimize the health effects of air pollution. Integrating large epidemiological data and air pollution exposure levels can provide a data infrastructure for studying ambient air pollution and its health effects. The Korean Genome and Epidemiology Study (KoGES), a large population-based study, has been used in many epidemiological studies of chronic diseases. Therefore, KoGES cohort data were linked to air pollution data as a national resource for air pollution studies. Air pollution data were produced using community multiscale air quality modeling with additional adjustment of monitoring data, satellite-derived aerosol optical depth, normalized difference vegetation index, and meteorological data to increase the accuracy and spatial resolution. The modeled air pollution data were linked to the KoGES cohort based on participants’ geocoded residential addresses in grids of 1 km (particulate matter) or 9 km (gaseous air pollutants and meteorological variables). As the integrated data become available to all researchers, this resource is expected to serve as a useful infrastructure for research on the health effects of air pollution.
Development of an IoT-based automatic fertigation system
Authors: Zubair Abdul Rasak , Adebiyi Tijesunimi
Published: September 2022

Fertigation supplies water and liquid fertilizer through the same channel to plants. Using drip irrigation set up for fertigation allows the root zone of the plant to be continuously supplied with nutrients and water throughout the farm season. Conventionally, fertigated systems are controlled using pre-set timers to turn on and off fertilizer injectors and irrigation pumps, and also to set the frequency and duration of supply. Therefore, fertigation management is usually based only on predictive algorithms or historical data, which may not be accurate for all situations. Development of a microcontroller-based fertigation management system within the Nigerian (Sub-Saharan Africa) region using a capacitive soil moisture sensor and a JXCT-IOT Frequency Domain Reflectometry (FDR) soil nitrogen sensor is presented. The sensors are placed in the soil around the root region of plants to enable a microcontroller to monitor the soil properties, determine how much water or nutrients the plant needs, and supply the amount needed through a drip irrigation framework. The tap water and urea solution are placed inside separate reservoirs and supplied to the plant through solenoid valves controlled by the microcontroller. Furthermore, an Internet of Things (IoT) client (Blynk IoT) was integrated with the fertigation system so that the fertigation process, as well as the soil state, could be monitored and controlled remotely. The data read from the sensors as well as the state of the solenoid valves were sent over the internet to be stored on the Blynk servers. A website and mobile (Android) dashboards were also created using the Blynk IOT platform to display the states of the valves and the sensor readings. The automatic fertigation system was found to be functional. The system keeps the soil moisture and nitrogen content between the recommended ranges: moisture content between 25% and 46% and nitrogen content between 20 mg/kg and 30 mg/kg for cucumber crops. Fertigation events occur every morning between 5 and 6 am.
Stimming Expresses Empathy, not to be Masked or Persecuted: A Scoping Review and Case Study of the “Double-Empathy Problem” Solved by Recognizing the Autism Language
Authors:   , Haas Kathryn
Published: September 2022

This article critically examines autism and autistic stimming through the lenses of neurotypicals and autistics, evaluates confines currently imposed upon autistics by neurotypical society, and synthesizes what autistic leaders have expressed about their experiences striving for inclusion (Gernsbacher, 2017; Milton, 2012). Autistic-led studies are now at the forefront of the neurodiversity movement and are growing in fervor. The following themes were identified: (a) prevalence of autism, (b) the interpretation and measurement of empathy, (c) discovery of genetic factors transformed autistics’ identity, (d) publication of non-genetic factors such as vaccines undermined the legitimacy of the autism language, (e) the problem with the lack of social language legitimacy, (f) autistic empathy, (g) past and current interventions, (h) destructive interventions thwart connection and cause mental health decline, (i) neurotypical perceptions of the autistic; (j) the responsibilities required in dual communication; and (h) autistic stimming has form, structure, and predictability. The language of stimming has not yet been defined or interpreted in a way the neurotypical community can comprehend and it is this lack of understanding neurotypicals have of the autistic that causes a disconnect between the two groups (DeThorne, 2020; Kapp et al, 2019a; Milton, 2012). Autistic empathy is physically manifested by the language of stimming so hopefully, neurotypicals will begin to feel empowered to learn it. This re-educating neurotypicals about autistic social language would diversify the neurotypical’s understanding of social behavior. For, it is only when neurotypicals give empathy in the same format they require of autistics, that we be fully included.
Medical Doctors in Health Reforms
Authors: Denis Jean-Louis , Germain Sabrina , Régis Catherine , Veronesi Gianluca
Published: September 2022

Health and legal experts from England and Canada consider the influence of medical doctors on reforms in this comparative study. With reflections on participation since the inception of publicly funded healthcare systems, they show how the status of doctors affects change.
Towards a New Civic Bureaucracy
Authors: Quinn Matthew J.
Published: September 2022

Matthew J. Quinn plots a landmark reimagination of governance and public administration, underpinned by sustainable development and civic republicanism.
How to Fix the Welfare State
Authors: Spicker Paul
Published: September 2022

Paul Spicker offers an original take on the British welfare state. He outlines the structure of services, the impact of false narratives, the real problems that need to be addressed and how we can do things better.
Childcare Provision in Neoliberal Times
Authors: Gallagher Aisling
Published: September 2022

Subjecting the ‘black box’ of childcare markets to closer scrutiny, this book brings to light complex political, social and economic work of making childcare markets.
Childcare Struggles, Maternal Workers and Social Reproduction
Authors: Perrier Maud
Published: September 2022

Spanning the UK, North America and Australia, this comparative study brings maternal workers’ politicized voices to the centre of contemporary debates on class, work and gender.

The book illustrates why social reproduction needs to be at the centre of a critical theory of work, care and mothering for post-pandemic times.
Agonies of Empire
Authors: Cox Michael
Published: September 2022

Michael Cox outlines the ways in which five American Presidents from Clinton to Biden have addressed their predecessors' legacies while dealing with an empire under increasing stress. He sets out a critical framework for US foreign policy, the US’s relationship with its enemies and rivals, and whether it is now in long term decline.
Snapshots from Home
Authors: Fierke Karin M.
Published: September 2022

This book brings the parallels between quantum physics and ancient Asian traditions - Daoism and Buddhism - to an investigation of mind, action and strategy in conditions of radical uncertainty. Engaging with both theory and real-world problems, it explores what it might mean to successfully navigate the potentials of a post-pandemic world.
Robbery in the Illegal Drugs Trade
Authors: McLean Robert , Densley James A.
Published: September 2022

Uniquely focusing on robberies involving drug dealers and users, this book considers the material and emotional gains and losses to offenders and victims, and offers policy recommendations to reduce occurrences of this common crime.
Coming to Care
Authors: Brannen Julia , Statham June , Mooney Ann , Brockmann Michaela
Published: September 2022

This book provides fascinating insights into the factors that influence why people enter and leave care work, their motivations, understandings and experiences of their work and intersection of it with their family lives.
Offenders in Focus
Authors: Farrow Kathryn , Kelly Gill , Wilkinson Bernadette
Published: September 2022

Drawing on research integrated with practitioner experience, this book creates fresh 'practice wisdom' for engaging effectively with offenders. Recognising that there are no instant solutions to changing offending behaviour, it provides a practice text encouraging a sense of confidence, enhancing readers' skill when working with offenders.
Immigration under New Labour
Authors: Somerville Will
Published: September 2022

Immigration under New Labour presents the first comprehensive account of immigration policy over the last ten years, providing an in-depth analysis of policy and legislation since Tony Blair and New Labour were first elected.
Zero Tolerance Policing
Authors: Punch Maurice
Published: September 2022

This book examines the key issues of what policing is about and who defines it by exploring the notion of zero tolerance and its application in different settings.
Consultancy in Public Services
Authors: Adams Robert , Tovey Wade
Published: September 2022

This book challenges the traditional view that the consultants are brought in as experts and instead examines ways of using consultancy to empower staff, patients, service users and members of the public.
Communities, Identities and Crime
Authors: Spalek Basia
Published: September 2022

This book provides a critical exploration of the importance of social identities when considering crime, victimisation and criminal justice and offers a refreshing perspective on the most significant developments in relation to equality and diversity issues that feature in policies and practices of criminal justice agencies.
Hubungan Pengetahuan Perawat Dengan Pelaksanaan Prosedur Pasien Risiko Jatuh Di Rumah Sakit Dustira
Authors: Gunarni Sri , Aziz Abdul
Published: September 2022

Efforts to implement procedures for patients with the risk of falling are important things that must be done by hospital staff, especially nurses in an effort to ensure patient safety (patient safety) while in the hospital, for this reason there is a need for an assessment related to the influence of the level of knowledge of nurses with the prevention of patient risk of falling. The purpose of this study was to identify the relationship between the level of knowledge of nurses and the implementation of procedures for patients who are at risk of falling at Dustira Hospital, West Java which was determined by purposive sampling. This research is quantitative using descriptive correlation method. The results showed that there was no significant relationship (p value> 0.05) between the level of knowledge of nurses and the implementation of the procedure for patients with risk of falling. The conclusion that can be drawn from this study is that there is no relationship between the level of knowledge of nurses and the implementation of the procedure for falling patients at Dustira Hospital, West Java. The suggestion that can be given is that the implementation of the patient's fall risk procedure must always be improved and become a routine activity for nurses in conducting assessments to patients in the hospital ward
Hubungan Penerapan Sistem Informasi Terhadap Keberhasilan Program Perilaku Hidup Bersih Dan Sehat Di Wilayah Kerja Puskesmas Sepatan Tahun 2020
Authors: Payumi  , Imanuddin Bayu
Published: September 2022

Salah satu program yang digalakkan dalam mencapai indonesia sehat adalah tentang pembiasaan perilaku hidup bersih dan sehat (PHBS). Sedangkan data yang diperoleh dari depkes RI (2014) sebanyak 26,1% penduduk di indonesia masuk dalam kategori kurang aktif dalam beraktivitas atau tidak melakukan PHBS. Besarnya angka ini terjadi dikarenakan kurangnya pengetahuan masyarakat dikarenakan penerapan sistem informasi yang kurang baik. Tujuan: untuk mengetahui hubungan penerapan sistem informasi terhadap keberhasilan program PHBS di wilayah kerja puskesmas sepatan kabupaten tangerang. Desain penelitian: termasuk survey analitik dengan pendekatan cross sectional. Sampel diambil dengan menggunakan rumus stanley lameshow dengan proporsi yang tidak diketahui diperoleh jumlah sampel sebanyak 196 responden. Pengambilan sampel menggunakan tehnik accidental sampling. Penelitian ini menggunakan analisis univariat dan bivariat dengan uji chi square. Hasil: berdasarkan analisis univariat dari 196 responden  mayoritas penerapan sistem informasi baik sebesar 59,7%, keberhasilan program PHBS sebesar 57,7%. Hasil analisis bivariat dengan uji chi square didapat ada hubungan antara penerapan sistem informasi terhadap keberhasilan program PHBS (p-value 0,000). Kesimpulan: dari variabel yang diteliti dapat diketahui bahwa penerapan sistem informasi berhubungan dengan keberhasilan program PHBS. Saran: bagi perawat hendaknya meningkatkan pengetahuannya tentang program PHBS, serta senantiasa mencari metode-metode terbaik agar dapat menyampaikan tentang program PHBS tersebut kepada masyarakat disekitar mereka.
Pengaruh Senam Aerobic Terhadap Skala Dismenore Pada Peserta Senam Di Gedung Barata
Authors: Oktamulyanisa Elsy
Published: September 2022

Di Indonesia, diperkirakan 55% perempuan usia produktif mengalami dismenore, dengan 54,89% mengalami dismenore primer dan 45.11% mengalami dismenore sekunder. Sampai saat ini metode pengobatan yang khusus untuk dismenore masih kurang sehingga para ahli menyarankan menggunakan metode nonmedis dengan aktivitas fisik yaitu berolahraga. Salah satu jenis olahraga yang paling banyak digemari adalah Aerobic. Latihan olahraga aerobic mampu mengurangi gejala-gejala gangguan menstruasi seperti dismenore yaitu mengurangi kelelahan dan stress. Tujuan penelitian ini adalah melihat pengaruh senam aerobic terhadap skala dismenore serta melihat hubungan antara keduanya. Penelitian ini menggunakan metode kuantitatif bersifat survey-analitik dengan desain crosectional study. Sampel sebanyak 53 orang diambil dari total sampling peserta senam aerobic di Gedung Barata. Analisa dilakukan dengan menggunakan dua uji yaitu Uji Wilcoxon Signed Ranks Test dan uji Chi-Square Tes. Hasil penelitian menunjukkan bahwa  ada perbedaan derajat nyeri dismenore antara sebelum dan sesudah mengikuti senam aerobic namun demikian, tidak ada hubungan antara senam aerobic dengan derajat nyeri dismenorea pada peserta senam Gedung Barata Banda Aceh. Senam Aerobic bukan merupakan variabel yang secara langsung dapat berhubungan dengan peurunan derajat nyeri dismenorea
Perbedaan Hitung Jumlah Trombosit Darah Edta Dengan Penundaan Waktu Pemeriksaan
Authors: Apriani Apriani , Priyanto Gea Hengki
Published: September 2022

Pemeriksaan trombosit berperan penting dalam membantu menegakkan diagnosis. Pemeriksaan hitung jumlah trombosit tidak boleh ditunda karena akan mempengaruhi hasil pemeriksaan jika dilakukan lebih dari 1 jam. Penelitian ini bertujuan untuk mengetahui perbedaan hitung jumlah trombosit darah EDTA yang diperiksa segera dengan yang ditunda 20 menit dan 40 menit pada pemeriksaan suhu kamar menggunakan metode pemeriksaan automatik dengan prinsip Flow Cytometer. Hasil rerata hitung jumlah trombosit pada penelitian ini adalah jumlah hitung trombosit yang diperiksa segera lebih tinggi dibanding hasil hitung trombosit yang ditunda 20 menit dan 40 menit. Hasil uji Paired-sample T-test pada hasil pemeriksaan menunjukkan bahwa hasil hitung trombosit yang segera diperiksa dengan yang ditunda 20 menit dan 40 menit tidak menunjukkan perbedaan yang signifikan (P > 0,05), begitu juga dengan hasil hitung trombosit yang diperiksa pada penundaan 20 menit dan 40 menit
Surgical Aproach to Perihiliar Cholangiocarcinoma
Authors:   Unidad Médica de Alta Especialidad, Hospital de Especialidades, Centro Médico Nacional de Occidente, IMSS, Zamora Rivera Gerardo Israel
Published: September 2022

Cholangiocarcinoma represents a diverse group of epithelial cancers united by late diagnosis and poor outcomes, includes a cluster of highly heterogeneous biliary malignant tumours that can arise at any point of the biliary tree. Global incidence is increasing. Surgical resection is the only potentially curative treatment for patients with cholangiocarcinoma. Due to the incidence of this type of cancer, as well as its associated mortality, a timely diagnosis is necessary, but even more so, to be familiar with the surgical technique, since it is th
Factors that influence CEO narcissism on financial statement
Authors:   Management Department,   STIESIA (Sekolah Tinggi Ilmu Ekonomi Indonesia)
Published: September 2022

This study aims to empirically examine the effect of CEO narcissism on the disclosure of Environment, Social, and Governance (ESG) by companies. CEO narcissism was measured using an unobtrusive indicator and ESG disclosure was measured by an ESG score from the Thomson Reuters database. The test was carried out on 100 samples of non-financial companies in 10 ASEAN companies obtained through purposive sampling technique with the research period 2019-2021. Observation points in this study amounted to 400 years of the company. The results showed that the CEO's narcissism had a positive effect on ESG disclosure.
Condições de Trabalho dos Catadores de Resíduos Sólidos em Tempos da Pandemia de Covid-19
Authors: Bezerra dos Santos Cícero Marcelo , Da Silva Pereira Raquel , De Sousa Fernandes Francisco Dinarte
Published: September 2022

O trabalho de catação constitui uma atividade para obtenção de renda, a fim de garantir a sobrevivência dos catadores e dos familiares. Objetivou-se analisar as condições de trabalho dos catadores de resíduos sólidos urbanos no contexto da pandemia de Covid-19. Estudo descritivo, quantitativo, desenvolvido em 2021, nos depósitos de resíduos sólidos de Crato, Ceará, Brasil, com 52 catadores, que responderam um questionário. Os resultados foram submetidos a análise descritiva. Os catadores eram homens (59,6%) e mulheres (40,4%), solteiros (50%), alfabetizados (71,2%), com renda inferior a um salário-mínimo (57,7%). O desemprego foi o principal motivo para esse trabalho (90,4%), que durava mais de 30 horas semanais (80,8%). 71,2% tinham medo de trabalhar durante a pandemia e informaram que sua renda diminuiu. 57,7% foram contaminados pelo novo coronavírus. Conclui-se que as condições de trabalho dos catadores de resíduos sólidos estavam críticas e merecedoras de atenção pelo poder público.
Integral assessment of the drinking water quality in the Omsk region
Authors: Novikova Yuliya A. , Tikhonova Nadezhda A. , Myasnikov Igor O. , Ovchinnikova Elena L. , Kolchin Andrey S. , Cherkashina Marina N. , Vinokurova Irina G.
Published: September 2022

Introduction. To analyze the likelihood of occurrence of adverse effects associated with human exposure to chemicals in drinking water, it is recommended to conduct an integral assessment. The purpose of the study was to assess the drinking water quality in rural areas of the Omsk region in accordance with modern methods. Materials and methods. The results of social and hygienic monitoring for drinking water quality in the Omsk region over 2018-2021 were used. Statistical processing of the results was carried out, the calculation of the values of carcinogenic, non-carcinogenic risk, the risk of olfactory-reflex effects, integral indicators. The percentile method was used to classify risk levels. Results. Typical polluting chemicals in the water sources in the Omsk region are resistatnt to oxidation organic substances, ammonium nitrogen, iron, aluminum, manganese, phenols, oil products. The aggregated individual carcinogenic health risk due to exposure drinking water chemical contamination in 2018-2020 amounted to 1.70E-04, which is rated as alarming. The average multi-year growth rate over the three-year period was +17.1%, and in rural areas the average growth rate of carcinogenic risk is even higher (+27.7%). The greatest contribution to the value of the aggregated carcinogenic risk is made by arsenic and organochlorine compounds. Integral indicators (II) of drinking water ranged from 0.82 to 125.88. The group with a very high II includes settlements supplied from surface water sources (the Irtysh River, the Om River). Carcinogenic risk affects the resulting value of II to a greater extent than other components (risks). Limitations. The results of monitor ikilodrinking water production monitoring in the Omsk region were not taken into account during integral assessment in terms of chemical safety. This is due to the difficulties of collecting information, its standardization and analysis. Conclusion. Integral indicators were calculated, and the levels of the integral indicator of water in settlements in rural areas of the Omsk region were classified. Despite the advantages of the method of the assessment of II of drinking water quality, some caution is needed when using II. The reason is possible loss of information or distortion of the dynamics of concentrations of individual substances, including the most toxic and dangerous.
Problems in ensuring effective parasitological control on the territory of the Russian Federation
Authors: Kuznetsova Kamalya Yu. , Aslanova Mariya M. , Kuznetsova Mariya A. , Rudneva Olga V. , Mania Tamari R. , Zagainova Anzhelika V.
Published: September 2022

Introduction. Modern parasitology is an area of interdisciplinary research that uses the methods and approaches of various biological disciplines, such as genomics, proteomics, bioinformatics, ecology, biology, medicine, veterinary medicine, climatology, using methods of landscape-geographical mapping, mathematical modeling to assess the parasitological situation and predict its dynamics. New problems associated with the parasitic aspects of global climate change, the introduction of new host species and parasites (pathogens), and anthropogenic transformation of natural ecosystems become topical. In this regard, the primary tasks for optimizing the socio-hygienic monitoring of the parasitic safety of the environment is the introduction of new methodological approaches for ranking territories - the risk according to the species composition and intensity of circulation of pathogens of parasitic diseases, the trend in changes in their range of pathogens and epidemiological properties in anthropogenically determined conditions. The purpose of the study is to substantiate the methodology for choosing a territory for optimizing social and hygienic monitoring and substantiating proposals for the unification of hygienic standards for parasitological indicators of environmental safety. Materials and methods. Experimental parasitological monitoring was carried out at the pilot site. 712 samples were studied using unified methods of parasitological research of biomaterial (MUK 4.2.3145-13 “Laboratory diagnostics of helminthiases and protozooses”) and environmental objects (MUK 4.2.2661-10 “Methods of sanitary and parasitological research”). Results. Data were obtained on the high intensity of the circulation of pathogens of parasitic diseases in the environment - 25%. More than 15 types of pathogens of parasitic diseases have been systematized. Limitations. The limitations of the study were associated with the lack of development of diagnostic tools for the genetic identification of parasitic pathogens within the same systematic group by PCR analysis. Conclusion. Methodological disagreements in various normative documents to the composition of the “target indicators” of research are determined. The practical part of the work included the collection of material from people and animals, from environmental objects. A new approach to the hygienic standardization of parasitological indicators based on group systematization of the propagative stages of development of parasites with subsequent methodological determination of their taxonomic affiliation is substantiated.
Psychological risks in the professional activities of private security officers
Authors: Korneeva Yana A. , Korneeva Anastasia V. , Shakhova Ludmila I.
Published: September 2022

Introduction. The work specifics of Russian private security officers contribute to the employees’ psychological risks development. There are not enough scientific studies devoted to the study of private security officers’ functional states and professional deformations as criteria for their psychological risks. Materials and methods. The study involved 74 private security officers. The study purpose was to evaluate and describe the functional states and professional deformations, and their relationship as criteria for psychological risks of Russian private security officers. To solve the tasks set, the author’s questionnaire was used to study the professional deformation types of law enforcement officers and instrumental psychophysiological testing methods of the employees’ functional state and operator performance. Statistical methods are multivariate analysis of variance, contingency tables using Pearson’s χ2 tests. Results. Against the background of sufficient internal resources, employees of private security have a reduced functional state level when working on night shifts, as well as on weekends. The employees are characterized by an optimal operator performance level in day and night shifts, due to the volitional regulation of their state. The prevailing professional deformation types for employees are overcontrol, conservatism and authoritarianism, which are expressed at an average level. A statistically significant relationship was established between the professional deformation of conservatism and the functional state level of private security officers. Limitations. The present study limitations are the relatively small sample size and the lack of comparison with units in other regions. Prospective studies on larger samples collected in other units and regions could help us explore this topic in more depth. Conclusion. The results and conclusions obtained make it possible to expand the options for assessing psychological risks of private security officers and develop practical recommendations for their reduction.
Occupational health risks in mining dump truck drivers
Authors: Syurin Sergey A.
Published: September 2022

Introduction. In recent years, the mining dump truck drivers have consistently reported high rates of occupational morbidity. The aim of the study was a retrospective study of occupational pathology development in the mining dump truck drivers at the apatite open pits in the Kola Peninsula. Material and methods. A retrospective analysis of occupational pathology was carried out in six hundred forty three truck drivers. Its starting point was the results of a medical examination in 2008, and in 2009-2020, newly detected occupational diseases were studied. Results. During 12 years, 172 occupational diseases including vibration disease (n=63), radiculopathy (n=54), reflex syndromes (n=36), and sensorineural hearing loss (n=19) were diagnosed for the first time in 105 (16.3%) drivers. The development of occupational pathology in 85 (49.4%) cases was due to the increased severity of work (class 3.1-3.2). In 66 (38.4%) cases, the cause was whole-body vibration (class 3.1-3.2), in 19 (11.0%) cases - noise and in 2 (1.2%) cases - hand-arm vibration (class 3.1). The risk of developing vibration disease and occupational musculoskeletal pathology was increased by vertebral osteochondrosis (RR=1.78; CI 1.21-2.60; p=0.004), deforming osteoarthritis (RR=2.35; CI 1.41-3, 91; p=0.001), arthralgia (RR = 3.12; CI 1.66-5.86; p<0.0001), cervicalgia (RR=3.29; CI 1.48-7.32 ; p = 0.002). Occupational noise exposure (Z57.0) increased the risk of occupational sensorineural hearing loss (RR=2.61; CI 1.31-5.19; p=0.005). Limitations. The impossibility of completely eliminating the diagnosis of an occupational disease in drivers who left the observation group for permanent residence in other regions of the country. Conclusion. The occupational health risk for dump truck drivers is determined by the length of service, severity of work, impact of whole-body vibration and noise, concomitant musculoskeletal and ear diseases, which must be taken into account in the prevention of occupational diseases.
El papel del análisis de ítems en la elaboración de las pruebas de conocimiento y aptitud
Authors: Díaz Esteve José V.
Published: September 2022

El Análisis de ítems (A.I.) es un paso importante en la construcción de pruebas de conocimiento y de aptitud, que son muy utilizadas en Educación y Psicología.

Dado el caso, que en estas disciplinas la medición suele hacerse por definición, se hace necesario determinar con precisión: los dominios de conocimientos o las destrezas y rasgos; ya que éstos deben ser conceptos bien elaborados en las pruebas de conocimiento, o construcciones bien definidas en las pruebas de aptitud.

Este artículo intenta presentar una síntesis de los diversos procesos que hay que tener en cuenta para todo análisis de ítems, utilizando (para visualizar mejor) una prueba de conocimiento en Matemáticas, la cual se aplicó a 1,496 alumnos que solicitaron ingresar en el Instituto Superior de Formación Docente Salomé Ureña (ISFODOSU) en junio del 2013.

Esta prueba consta de 40 ítems, extraídos del banco de ítems de las “Pruebas Nacionales”, del Ministerio de Educación de República Dominicana. En tal sentido, urge señalar que el valor de la media teórica de esta prueba sería de 20, suponiendo que sus ítems han sido debidamente calibrados a través de un buen Análisis de ítems.
Vormen de fysieke en psychosociale symptomen van long-Covid een syndroom? Een cross-sectioneel patiëntenonderzoek
Authors: Domen J. , Guler I. , Swartenbroekx Janssens L. , Schoenmakers B.
Published: September 2022

Do the physical and psychosocial symptoms post-COVID constitute a syndrome? A cross-sectional patient survey

COVID-19 also has long-term health implications. The number of reports of people having persisting symptoms is increasing, but the characteristics of a COVID-19 syndrome are unknown.

The aim is to assess the presentation of physical and psychological symptoms post-COVID in patients who experienced mild to moderate COVID-19, and to investigate to which extent these constitute a syndrome.

A cross-sectional survey, distributed via social media groups of long-COVID sufferers, was conducted.

The eligibility criteria were: aged 18 years or older, a history of COVID-19 and the first symptoms of COVID-19 had to be older than 6 weeks. Primary outcome measures are the prevalence of persisting symptoms 3 and 6 months after a COVID-19 infection to identify a post-COVID syndrome. A secondary outcome measure are the patient characteristics associated with persisting symptoms 3 months post-COVID.

787 respondents consented and 539 completed the survey. 471 (87%) participants are female and 259 (49%) are between the age of 36 and 50 years. The most frequently reported symptoms after 6 months are fatigue (52%), decreased concentration and cognitive function (42%), muscle complaints (42%), dyspnoea (39%), sleeping problems (35%), mood swings (20%), depressed mood (19%) and anxiety (18%). A post-COVID syndrome cannot be described. Only the female gender is associated with an increase in the number of symptoms post-COVID.

We see a high prevalence of persistent symptoms 3 and 6 months post-COVID. However, despite the high prevalence of symptoms, our analyses do not identify a post-COVID-19 syndrome.
The Concept of Morality in Teaching and Training
Authors: Darici Nurullah
Published: September 2022

Morality is the collection of unwritten norms that govern the acceptable or unacceptable behavior of a community. To sustain order in a community, individuals must adhere to specific norms. Some of these regulations are moral codes, such as traditions and conventions. Customs and traditions include a component of morality. Researchers have been investigating what learning is for decades. Educators have emphasized the significance of moral education and how to impart morality to students regardless of the learning domain. This circumstance calls for more acknowledgment of both the learner and the learning environment. This article focuses on teaching morality to students in the context of education and a few aspects that influence the moral development of pupils.
Implementation of Technological Innovation in the Production of 'Harimau' Medium Tanks Make use of the National Defense Industry's Independence
Authors: Gunadi Gathut Imam , Yudhotomo Unggul Satrio , Manan Manan
Published: September 2022

Efforts to develop the defense industry are to encourage innovation, because only with innovation can an industry always develop competence in the form of technology development and commercialization. The innovation process includes research and development, prototyping, demonstration, commercialization and after-sales service. Innovation is a combination of invention and commercialization of technology. So that innovation requires a process from the background of the needs to the achievement of success during commercialization. Currently, Indonesia has one type of medium tank technology called the Harimau. Basically, Indonesia has implemented technological innovation in the development of the medium tank technology 'Harimau'. Howeever, there are still challenges in the way of implementing these technological advancements, including whether or not their aplication may lead to defense industry independence or vice versa. This paper aims to analyze the national defense industry on the technological innovation of the medium tank 'Harimau'. The SWOT (Stengths, Weaknesses, Opportunities, and Threats) method is used in this analysis. This research is planned to give an analysis of defense industry technology developments that will advance the provision of defense and defense equipment to land-bases forces.
Factors Affecting the Effectiveness of Regional Health Insurance Services in North Buton Regency
Authors: Tawai Adrian , Syarif Syarif
Published: September 2022

The National Social Security System aims to guarantee the health of all Indonesian people in stages. This study aims to examine the factors that influence the effectiveness of regional health insurance services in the North Buton Regency. The research data collection techniques used three approaches, namely observation, interviews, and documentation which were then analyzed using a qualitative approach. The results of the study indicate that the facilities and infrastructure as support for health insurance services are not adequate, the internet network is not optimal, and the apparatus resources are not adequate. In general, this study can conclude that the effectiveness of regional health insurance services in the North Buton Regency is not adequate
Analysis of the Use of Google Classroom as a Low-Grade Integrated Thematic Learning Medium During the Covid-19 Pandemic
Authors: Khasanah Aulia Fajar , Slamet St,Y, , Rukayah Rukayah
Published: September 2022

During the COVID-19 pandemic, internet technology was critical to develop. As a result, schools are required to incorporate information technology into the learning process. The goal of this study was to determine how lower grade students used Google Classroom as an integrated thematic expansion medium. The descriptive qualitative method and case study approach were used in the research. Data collection methods include observation, interviews, and documentation. One of the online learning solutions is to use Google Classroom as an interactive learning media based on e-learning to assist teachers and students in the teaching and learning process from home in support of ICT-based learning. The findings revealed that the use of Google Classroom as a medium of learning in lower grades has not been maximized for these students; it is necessary to become accustomed to applying learning using Google Classroom learning media for face-to-face online meetings, learning materials, and learning evaluation so that teachers can explore the learning media used during the COVID-19 pandemic. The findings of this study have implications for developing a thematic tracking system that is more effective and appropriate for teachers and students in learning during the COVID-19 pandemic.