bluuebunny/crossref_metadata_2025 huggingface dataset:
Aerodynamic Shape Optimization for Alleviating Dynamic Stall Characteristics of Helicopter Rotor Airfoil
Authors:   Nanjing University of Aeronautics and Astronautics, Wang Qing , Zhao Qi-jun , Wu Qi
Published: October 2024

The unsteady characteristics should be considered when to design a helicopter rotor airfoil with high aerodynamic performance. In this paper, a new optimized rotor airfoil based on the SC1095 airfoil is designed to alleviate the dynamic stall effects in helicopter rotor. In order to satisfy multi-objective requirements, the sequential quadratic programming (SQP) method is employed to optimize the unsteady characteristics of airfoil under dynamic stall conditions. The geometry of the airfoil is parameterized by the Class-Shape-Transformation (CST) method, and the C-topology body-fitted mesh is then automatically generated around the airfoil by solving the Poisson equations. Based on the grid generation technology, the unsteady RANS equations are chosen as the governing equations for predicting airfoil flowfield, and the cell-centered scheme is employed for spatial discretization of convective fluxes and viscous fluxes, and the highly-efficient implicit scheme of LU-SGS is adopted for temporal discretization. To capture the dynamic stall phenomenon of the rotor more accurately, the Spalart-Allmaras turbulence model is employed to close the RANS equations. After several cycles of optimization, the optimized airfoil with a larger leading edge radius and larger camber is obtained. The leading edge vortex and trailing edge separation of the optimized airfoil under unsteady conditions are obviously weakened, and the dynamic stall characteristics of optimized airfoil at different Mach numbers, different reduced frequencies and different angles of attack are also obviously improved compared with the baseline SC1095 airfoil. It is demonstrated that the optimized method is effective, and the optimized airfoil is suitable as the helicopter rotor airfoil.
OpenMDAO/NDARC Framework for Assessing Performance Impact of Rotor Technology Integration
Authors:   American Society for Engineering Education, Avera Michael ,   US Army Research Lab, Singh Rajneesh
Published: October 2024

A rotorcraft design and analysis environment was created by wrapping NASA Design and Analysis of Rotorcraft (NDARC) within OpenMDAO. This environment allows for multiple executions of NDARC upon a number of unique design cases in rapid succession without the necessity of a user to recreate individual input files for each design case and to manually pass data between analysis software. To exercise the utility of this framework, an active rotor technology power model was created and applied to multiple NDARC analyses using this framework. The power model correlates induced power and profile power model parameters to the power supplied to the active controls technology. The impact of inserting active rotor technology as an upgrade to a notional 16,000lb helicopter design is assessed by using the framework to conduct NDARC performance analysis at varying levels of active controls power settings. Performance gains in power required and aircraft lift-to-drag ratio are shown. The OpenMDAO/NDARC framework proves to be a robust and powerful environment. Suggestions are made for other uses and improvements to increase the scope and fidelity of the framework.
Development of a Helicopter Hydroformable Skid Landing Gear Cross Tube
Authors:   Bell Helicopter Textron Canada Limited, Bernier Simon ,   Université Laval, Élie-Dit-Cosaque Xavier , Gakwaya Augustin , Guillot Michel , Levesque Julie , Blanchet-Létourneau Jocelyn
Published: October 2024

This paper proposes a novel method to design and manufacture skid-type landing gear cross tubes for light helicopter using Tube Hydroforming (THF). Hydroforming is a promising alternative to conventional fabrication methods, with the potential of reducing costs, weight and environmental footprint by reducing raw material consumption and chemical milling operations. A proof of concept design of a helicopter skid gear forward cross tube manufactured using THF is presented and analyzed. The cross tube is built from an extrusion of high strength aluminum 7075-T73511 alloy which is bent and hydroformed to its final shape. The cross section of the base tube is formed to a rectangular optimized shape with varying dimensions along its length to reduce weight while improving its mechanical behavior. The optimization was aimed at minimizing loads reacted during drop tests while maintaining proper energy absorption by plastic deformation and ground clearance. Simulations of drop tests and loading under various conditions were carried out using Abaqus to determine energy absorption, deflection and ground loads on a skid landing gear equipped with the hydroformed cross tube.
Contribution to the Study and Design of an Electro-thermal De-icing/Anti-icing System Applied to Rotorcraft
Authors:   Université du Québec á Chicoutimi, Boussetoua Mohammed ,   Université du Québec á Chicoutimi (UQAC), Ouhrouche Mohand , Perron Jean
Published: October 2024

This paper presents a study comparing two different permanent magnet transverse flux generator structures on the basis of numerical calculations using Flux 3D software. Both have the same stator, but the first generator is excited by a surface-mounted permanent magnet (SM-PMTFG) and the second by a concentrated flux permanent magnet (CF-PMTFG). The performance of both structures is calculated numerically in the same conditions. The present study aims at developing high performance devices to be applied to an electro-thermal system for helicopter blade anti-icing/de-icing. Generator characteristics (back electromotive force (EMF), Voltage, Current, Power) calculated by the software are validated with experimental values measured using two prototypes of the SM-PMTFG.
New Robust Control Analysis Methodology for Lynx Helicopter and Cessna Citation X Aircraft using Guardian Maps, Genetic Algorithms and LQR Theories Combinations
Authors:   ETS Laboratory of Research in Active Controls Avionics and AeroServoElasticity, Ghazi Georges , Botez Ruxandra
Published: October 2024

Autopilot analysis is a very complex stage in the design of an airplane or a helicopter. In addition to providing maneuverability criteria, the autopilot must be robust to uncertainties or changes in physical parameters changes. Using the LQR (Linear Quadratic Regulator) theory, a genetic algorithm and the guardian map theory, a methodology is described for designing an internal controller to be used by an the autopilot which satisfies accurate handling qualities while remaining robust. The algorithms were developed in Matlab® and the simulations were realized with Simulink®. A full nonlinear model of the Cessna Citation X and six linear models of the Lynx Helicopter for different speeds are used to show the results and evaluate the efficiency of the methodology.
Joint Common Architecture (JCA) Recommendations
Authors:   The Boeing Company, DuBois Thomas ,   Sikorsky Aircraft Corporation, Kinahan William , Dones Fernando
Published: October 2024

In June of 2013, the Army released a draft overview of the Joint Common Architecture (JCA) model (Ref. 1), which suggests a way to decompose mission systems functionality into Domains, Subsystems, and Components. This paper offers additional recommendations to the structure of the JCA, including an added Systems decomposition layer and Vehicle Management Systems (VMS) functionality related to flight controls. The new Systems layer bridges the connection between the Domains and Subsystems provided in the draft JCA. The structure of the Systems layer encourages the mission systems integrator to conduct design trades allowing functionality to span more than a single Subsystem. The Systems layer recognizes advancements in technology to enable more processing to be done within single enclosures, and the trend among subsystem providers to offer more functionality within their products. It balances the decomposition gap between the broad Domain areas and numerous Subsystems into a partition of Systems that naturally fit the major systems that need to be developed for rotorcraft aviation platforms. Partitioned operating systems (e.g., those real-time operating systems conformant with the Future Airborne Capability Environment), processes for critical software development (e.g., DO-178C), and virtual machines allow mixed criticality levels of software to execute inside the same processing environment. Such implementations are flight certifiable allowing for the opportunity to incorporate flight controls functionality within the Joint Common Architecture. Flight-critical domain components and functions continue to be within the JCA, with design characteristics conforming to flight critical requirements. This approach offers sensor and processing consolidation that yields savings in space, weight, power and cost.
Guidance for Slung Load Operations through Differential Dynamic Programming
Authors:   Georgia Institute of Technology, De Gerardo , Johnson Eric , Theodorou Evangelos
Published: October 2024

In this paper we present a differential dynamic programming based guidance framework for slung load operations and demonstrate it through simulation studies and a preliminary flight test. Specifically, an optimal control problem is solved with the Differential Dynamic Programming (DDP) algorithm. The resulting optimal vehicle trajectory is used in the vehicle's existing guidance, navigation and control architecture. Furthermore, the state of the slung load is estimated via an augmentation to the existing navigation system that utilizes only vision-based measurements of the load. Therefore, minimal hardware and software changes are needed to an existing system in order to implement the proposed framework. The simulation studies and the preliminary flight test prove that the DDP algorithm can be solved iteratively on-line and is a feasible approach for the control of slung load systems.
Active Parallel Actuation Subsystem, An Alternative Approach to Tactile Cueing Without Fly By Wire
Authors:   BAE Systems, Taylor Adam ,   The Boeing Company, Irwin Joe
Published: October 2024

After supplying a first-generation Active Inceptor System (AIS) for the Boeing Vehicle Management Systems Integration Technology for Affordable Lifecycle cost (VITAL) AH-64 Apache helicopter, BAE Systems has produced a range of flightworthy AIS products for several military and commercial aircraft. The latest fifth-generation AIS is in development for the civil marketplace. Most recently, BAE Systems worked collaboratively with Boeing Helicopters to define a new type of tactile cueing solution, the Active Parallel Actuation Subsystem (APAS) that provides the benefits of tactile cueing to vehicles that are not Fly-By-Wire (FBW). Initially aimed at the H-47 Chinook platforms, the APAS equipment provides synthetic force feedback and tactile cues to pilots of any aircraft having mechanically interconnected pilot stations and displacement-trim flight controls. The solution leverages Commercial-Off-The-Shelf (COTS) components, software, and civil certification artifacts from the fifth-generation AIS. Already proven in ground-based evaluations, flight demonstrations of APAS using a MH-47G Chinook are planned in 2015 with the intent of bringing APAS into production as a retrofit kit for the Chinook towards the end of this decade. The APAS implementation presented some specific challenges to ensure that the cues, feel, safety and performance were all acceptable while minimizing the impacts to the legacy mechanical controls installations and existing electrical interfaces. This paper presents a summary of the APAS approach, potential benefits to the Chinook helicopter, and compares some of the pros and cons to that of a full FBW AIS implementation.
Validation of Numerical Methods for Multi-terrain Impact Simulations of a Crashworthy Composite Helicopter Subfloor
Authors:   German Aerospace Center (DLR), David Matthew ,   Australian Cooperative Research Center for Advanced Composite Structures, Thomson Rodney ,   The University of Auckland, Billac Thomas , Kindervater Christof , Battley Mark , Allen Tom , Das Raj
Published: October 2024

Helicopters typically operate over a large variety of terrains. Designing a crashworthy subfloor that can perform efficiently in most impact environments requires the use of accurate simulation tools with a good confidence in the modeling approach and the representation of the soft surfaces. The present work investigates the accuracy of the most commonly used equations of state to numerically model water with explicit Finite Element and Smoothed Particle Hydrodynamics methods. Both analytical and numerical investigations indicated that the Smoothed Particle Hydrodynamics method together with the Murnaghan equation of state provide the best compromise between accuracy and efficiency in predicting the dynamics of a structure impacting onto water. The modeling approach also showed superior accuracy to the more common Finite Element method in representing a soft ground like soil. Based on the use of trapezoidal energy absorbing elements, a composite subfloor was then designed and simulations using the previously validated technique indicated its good crashworthy potential in impact situations over different surfaces.
Impact Tests and Simulations of Crashworthy Composite Structures Using Variable Load Concept
Authors:   German Aerospace Center (DLR), David Matthew ,   Cooperative Research Centre for Advanced Composite Structures (CRC-ACS), Thomson Rodney ,   The University of New South Wales, Hou Tiansong , Prusty Gangadhara. , Pearce Garth , Kelly Don
Published: October 2024

Composite materials are used extensively in modern helicopter structures to reduce weight. Applications include energy absorption components necessary to meet crashworthiness requirements, where composite material can offer higher Specific Energy Absorption (SEA) than traditional metallic materials. However, the constant force energy absorbers that are currently used exhibit some limitations, such as under-utilisation of the crushing stroke leading to inefficient material usage and therefore higher than necessary decelerations to the occupants in some crash scenarios. This paper describes the results of a project to develop an improved system for crashworthiness. As part of this project, a novel Variable Load Concept (VLC) has been introduced to improve the performance of the energy absorption components. The crushing force can be controlled through the radius size of trigger mechanism and the use of pressurised composite tubes. The concept and the system were developed and further validated by crush testing at speeds of quasi-static, 2 m/s and 8 m/s. The results established that the VLC with pressurised composite tube system can be used in crashworthiness applications, and that the significant improvement in energy absorption characteristics is possible. Finally, an explicit finite element study was carried out using software PAM-CRASH, where very good agreement with experiment was demonstrated.
Predicted Performance of an Optimized Energy-Absorbing Crashworthy Seat During Idealized and Actual Crash Pulses
Authors:   BAE Systems Inc., Richards Marvin
Published: October 2024

Advanced computer simulation was utilized to optimize a generic vertical-load-limiting seat's energy absorber (EA) load-stroke profile to achieve acceptable lumbar axial compressive loads for a 50th percentile anthropomorphic test device (ATD) when exposed to standard military triangular test pulses. The optimized EA profiles included a constant-load type, a progressive-ramp-load type, and a progressive-step-load type. Measured accelerations from three full-scale rotorcraft crash tests were then input to the computer simulation to evaluate the three optimized EA profiles. The modeling showed that both the ramp and step load profile EA's can produce significantly shorter seat stroking distances than a fixed-load EA type without significantly increasing the peak measured ATD lumbar axial compressive loads. The modeling also showed that the lumbar axial compressive load is sensitive to the crash pulse orientation, and that optimizing an EA to pulses with combined forward and vertical loading based solely on the peak ATD axial lumbar load may lead to excessive vertical acceleration levels. Other common injury criteria, including acceleration-duration exposure and Dynamic Response Index (DRI), are also presented for all modeling cases.
Select Human Machine Interface Properties for Cockpit Touchscreen Displays
Authors:   Esterline Control and Communication Systems, Robinson Tim , Jacobson Mickey , Grabski Greg , Humphrey Steve , Green John
Published: October 2024

Touchscreen displays are of growing interest to the aerospace community and are having a significant impact on how pilots interact with avionics. With the right hardware construction and software algorithm, a touchscreen display can present information and provide controls to the pilot in an intuitive manner for safe operation of an aircraft. This paper reviews touch sensor technologies and describes the properties of a touchscreen display designed for cockpit applications. In particular, we describe a durable modified resistive touchscreen display that minimizes accidental inputs, improves the high ambient contrast ratio, provides smooth and low friction properties to the user's finger, and disrupts the distinctiveness of reflected images.
Lichen Planus Pigmentosus Inversus: case report and systematic review
Authors: Gavazzoni Fabio Massimo , Patta Federico , Nobile Carla , Girolami Ilaria
Published: October 2024

Lichen Planus Pigmentosus Inversus (LPPI) is a rare variant of lichen planus characterized by well-demarcated, often slight pruritic, dark-gray plaques in intertriginous zones, hence the attribute of “inversus”, originally described by Pock et al. in 2001. Less than 100 cases have been reported to date, and here we present a case in a 52-year-old male who presented with two months duration of grey-brownish plaques in bilateral axillary, submammary, antecubital, and inguinal folds. No triggering agent was present, and the biopsy showed an interface/lichenoid dermatitis with plenty of pigment incontinence. Topical tacrolimus 0.1% ointment was administered with moderate improvement at five weeks. A review of the literature showed no significant differences in involved sites and age distribution among genders, with a slightly longer duration of manifestations in females. The most administered therapeutic agents were topical corticosteroids, alone or in combination with other agents, and tacrolimus.
Il paradigma civilistico del partito alla prova della liquidità. Membership e organizzazione ai tempi della crisi delle organizzazioni di mass
Authors: QUARTA ALESSANDRA
Published: October 2024

Negli ultimi anni, i partiti politici hanno cercato di coinvolgere nuovi partecipanti, mettendo in discussione il concetto tradizionale di appartenenza. Questo articolo si propone di comprendere le implicazioni giuridiche di questa scelta, esplorando i diritti, i doveri e i rimedi che i membri esterni possono esercitare per contribuire efficacemente alle attività del partito. L'analisi prenderà in considerazione gli statuti dei partiti nazionali e locali, valutando il ruolo del diritto contrattuale nel quadro generale della regolamentazione delle associazioni.
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Mental mathematics knowledge for teaching of ‘high gain’ pre-service teachers
Authors: Venkat Hamsa , Mathews Corin D.
Published: October 2024

Background: Initial teacher education (ITE) research in South Africa shows gaps in pre-service teachers’ (PSTs) primary mathematics knowledge.Aim: We study the mental mathematics understandings and teaching experiences of three PSTs who achieved high gains for learners they taught mental mathematics to using the Mental Starters Assessment Project (MSAP) jump strategy materials.Setting: The three PSTs, from one urban university, taught the jump strategy to Grade 3 classes in three different Gauteng schools.Methods: Learner pre- and post-tests around the taught unit provided the basis for categorising the three ‘high gain’ PSTs. Extended interviews with each PST were then transcribed. Initial grounded analyses of these data were subsequently overlaid with categories drawn from the mathematical knowledge for teaching literature.Results: All three PSTs indicated relatively strong common content knowledge of jump strategies and connected specialised content knowledge. They also exhibited strong awareness of the MSAP content. They differed in how they saw the relationship between fluency, calculation and equivalence tasks.Conclusion: The study’s findings indicate the need for more explicit attention to the connection between mental maths fluencies and strategic calculation in ITE.Contribution: The study points to ways in which mental mathematics can be understood and taught for strong learning gains.
Automated feature extraction for planning state representation
Authors: Sapena Oscar , Onaindia Eva , Marzal Eliseo
Published: October 2024

Deep learning methods have recently emerged as a mechanism for generating embeddings of planning states without the need to predefine feature spaces. In this work, we advocate for an automated, cost-effective and interpretable approach to extract representative features of planning states from high-level language. We present a technique that builds up on the objects type and yields a generalization over an entire planning domain, enabling to encode numerical state and goal information of individual planning tasks. The proposed representation is then evaluated in a task for learning heuristic functions for particular domains. A comparative analysis with one of the best current sequential planner and a recent ML-based approach demonstrate the efficacy of our method in improving planner performance.
Translation lengths in crossing and contact graphs of quasi-median graphs
Authors: Genevois Anthony
Published: October 2024

Given a quasi-median graph

X

, the crossing graph

\Delta X

and the contact graph

\Gamma X

are natural hyperbolic models of

X

. In this article, we show that the asymptotic translation length in

\Delta X

or

\Gamma X

of an isometry of

X

is always rational. Moreover, if

X

is hyperbolic, these rational numbers can be written with denominators bounded above uniformly; this is not true in full generality. Finally, we show that, if the quasi-median graph

X

is constructible in some sense, then there exists an algorithm computing the translation length of every computable isometry. Our results encompass contact graphs in CAT(0) cube complexes and extension graphs of right-angled Artin groups.
A $\delta$-first Whitehead Lemma for Jordan algebras
Authors: Zohrabi Arezoo , Zusmanovich Pasha
Published: October 2024

We compute $\delta$-derivations of simple Jordan algebras with values in
irreducible bimodules. They turn out to be either ordinary derivations ($\delta
= 1$), or scalar multiples of the identity map ($\delta = \frac 12$). This can
be considered as a generalization of the "First Whitehead Lemma" for Jordan
algebras which claims that all such ordinary derivations are inner. The proof
amounts to simple calculations in matrix algebras, or, in the case of Jordan
algebras of a symmetric bilinear form, to more elaborated calculations in
Clifford algebras.
Judith Butler e os estudos em comunicação
Authors: Amaral Muriel Emídio Pessoa do
Published: October 2024

O artigo propõe apresentar outras contribuições de Judith Butler aos estudos da comunicação para além das questões de gênero e identidade. A partir dos conceitos de enquadramento e de vida precárias, o texto se debruça ao apresentar como as formas de representação e formação de sentido pensados por Butler para a composição fotográfica contribuem para que algumas vidas sem desprovidas de luto e alvo de violência simbólica e persistente. A contribuição de Butler pode enriquecer o campo da comunicação enquanto novos caminhos teórico-metodológicos aos estudos sobre representação e fotografia.
Corpo e Comunicação
Authors: De Almeida Prado Beatriz , Lima Satler Lara
Published: October 2024

A comunicação é parte fundamental da existência humana em sociedade. Identificar suas características e processos de funcionamento auxilia não apenas na compreensão do fenômeno comunicacional em si, mas também de diversos processos sociais. José Luiz Braga em diálogo com Oliver Sacks argumenta que a comunicação além de se exercer pela linguagem já existente, atua como geradora onde ela inexiste. A partir disso, propomos um passo anterior: sendo a comunicação gerativa da linguagem, o corpo seria gerador da comunicação. Com essa ideia em mente, buscamos com o presente artigo compreender como conceitos comunicacionais têm aparecido nos estudos de corporalidade na área da Educação Física. Por meio de uma abordagem metodológica de pesquisa bibliográfica, apontamos como resultados que a precisão do conceito de corporalidade, ao ser analisada em diálogo com o comunicacional, pode contribuir com pesquisas que se ocupam do corpo como interesse de investigação.
Conexões plurais com a ética, a cultura, a democracia
Authors: Carauta Alexandre
Published: October 2024

A Alceu 53 trafega pelo pluralismo. A segunda edição do ano revigora a diversidade de reflexões e temas permeados pela comunicação. Da resenha de abertura à entrevista final, a revista estende conexões com a cultura, a política, a filosofia, o cinema, o esporte, as transformações tecnológicas. São diálogos imprescindíveis ao debate sobre nossos rumos sociais, sobre o papel da comunicação diante dos desafios democráticos intensificados pela intransigência, pela crise ética, pelos vilipêndios ao pensamento crítico.
Ética na IA
Authors: Lyra Edgar
Published: October 2024

O filósofo austríaco Mark Coeckelbergh é um dos nomes mais expressivos no atual debate sobre o desenvolvimento tecnológico e suas implicações éticas. Sua vasta obra se espalha pelo campo da inteligência artificial, da robótica, do pós humanismo, do transumanismo, em suas consequências ambientais, políticas e psicossociais.
Coeckelbergh integra várias comissões europeias e conselhos editorais importantes na área ampla da inteligências artificial, e tem vários livros e artigos publicados sobre o tema, dentre eles Ética na IA, hoje traduzido em mais de uma dezena de línguas e objeto desta resenha.
Neonatal Hepatic Abscess in Preterm Infants: A Rare Entity
Authors: Tan NWH , Sriram B , Tan-Kendrick APA , Rajadurai VS
Published: October 2024

Introduction and Objective: Neonatal pyogenic hepatic abscess in preterm infants is a rare entity. We present 6 cases of neonatal liver abscesses diagnosed in our hospital as well as an approach that will facilitate the early diagnosis and management of neonatal pyogenic liver abscess based on our case series and review of the literature.

Materials and Methods: Retrospective review of case records of all 6 patients diagnosed with neonatal liver abscess from January 2000 to December 2002 in KK Women’s and Children’s Hospital, Singapore.

Results: All neonates were premature with gestational ages between 24 and 34 weeks. Persistence of positive blood culture despite appropriate antibiotic treatment in 67% of the cases prompted use of hepatobiliary ultrasounds to detect liver abscess. Surgical drainage of liver abscess was performed in 33% of the cases, with the remainder treated conservatively with appropriate intravenous antibiotics. Half of the infants recovered with resolution of their liver abscess on serial hepatobiliary ultrasound. The other half died of fulminant sepsis.

Conclusions: Neonatal pyogenic liver abscess, though rare, is associated with good outcome if diagnosed promptly and appropriate treatment instituted. In a preterm infant with sepsis, a high index of suspicion is required if there is persistence of positive blood culture despite appropriate antibiotic treatment, and hepatobiliary ultrasound should be done to detect and monitor neonatal liver abscess.
Percepções dos estudantes do ensino médio sobre a experimentação digital de Química
Authors: Lira Douglas Lopes de , Leite Bruno Silva
Published: October 2024

Na educação básica, a experimentação química deve ser entendida como uma atividade que permite a articulação entre teoria-fenômeno-representação. Todavia, as dificuldades vivenciadas em aulas práticas pelo professor, principalmente nas escolas públicas, são inúmeras, pois carecem de material, infraestrutura, treinamento, etc. Entretanto, o professor, mesmo sem um laboratório disponível, pode utilizar recursos acessíveis aos estudantes para realizar aulas experimentais, um desses recursos são as Tecnologias Digitais. Nesse sentido, esta pesquisa teve como objetivo analisar as percepções de estudantes do ensino médio sobre uma Experimentação Digital de Química (EDQ). A pesquisa de abordagem qualitativa e classificada como descritiva foi realizada em cinco etapas por meio de uma pesquisa participante. Os resultados mostram uma postura favorável dos estudantes em relação à EDQ, que contribuiu para o aprendizado de conceitos químicos. Ademais, observou-se que é possível ter a EDQ como aliada, uma vez que pode servir de complemento às práticas realizadas nos laboratórios.
Linguistic Identity of Students in the Juliaca Public Pedagogical Higher Education School
Authors: Sanabria Yolanda Jesús Florez de , Apaza-Ticona Jorge , Apaza-Chino Julian
Published: October 2024

Objective: The objective is to describe the linguistic identity of the students of the Juliaca Public Pedagogical Higher Education School from the various Quechua and Aymara-speaking ecozones of the Puno region.
 
Theoretical Framework: This research deals with linguistic identity of the students, in the context the use of the Spanish language in communication is a priority, as it is considered an official language. In the research we confirmed that the students have a favorable linguistic identity towards the Quechua and Aymara languages, because these languages have utility value and a symbol of cultural identity in the Puno region. In addition, in intercultural educational policies the use of the Quechua and Aymara languages is recognized. Therefore, it is essential to use it in the family, communal and institutional context.
 
Method: The most predominant qualitative-ethnographic methodology was used, complemented by the quantitative methodology, as well as with the help of interview, participant observation and performance techniques, which allowed us to glimpse linguistic identities. The research sample considered was 128 students, with a statistical affixation in a proportional manner, according to the student population of each specialty of the school.
 
Results: The study glimpses the identity with the Quechua, Aymara and Spanish languages. The results show the factors that influence the student to prefer to speak in Spanish and not in Quechua or Aymara and finally the perceptions about the linguistic identity of the students, in the context of coexistence in the higher education institution and in the family.
 
Contribution: In this research we glimpse the existence of the diversity of languages linked to the different linguistic families; Spanish as the official language is spoken in various institutional spaces and Quechua and Aymara in communal and family contexts.
Numerical Modeling of the Fluids Petroleum Flow Through the Supersonic Separator
Authors:   Oil and Gas Engineering Faculty, Oiil-Gas University, Ploiesti, Romania, Bârsan Doru , Chis Timur ,   Oil-Gas University, Ploiesti, Romania, Prodea Laurentiu ,   Mechanical Faculty, Lucian Blaga University Sibiu, Romania
Published: October 2024

In the context of increasing concerns regarding the amplification of the thermal effects of climate change, the Council of the European Union has proposed the reduction (up to the elimination) of the use of fossil fuels. For this purpose, the implementation of new ecological (renewable) fuels is being analyzed to reduce the carbon dioxide footprint, natural gas being the transition fuel. Also, in the next period, an increase in the demand for methane, the exploitation of condensate deposits, those with natural gas mixed with acid gases (containing hydrogen sulfide, carbon dioxide, and nitrogen), as well as oil deposits with associated natural gas, which will require their treatment (to eliminate saline or non-saline water, mechanical impurities, of condensate and acid gases). At the same time, the exploitation of offshore deposits in deep waters will be emphasized, which will lead to the location of treatment equipment on the seabed. The present work discusses the simulation of natural gas treatment processes, focusing on the separation from methane (in the supersonic field) of water, condensate, and acid gases.
Benefits of Information Technology to the Development of Nigeria
Authors:   Department of Computer Science, Caleb University, Nigeria, Osunmadewa Kayode , Folake Oyebanji ,   Department of Computer Science, Caleb University, Nigeria, Oduroye Ayo P. ,   Department of Computer Science, Caleb University, Nigeria
Published: October 2024

The sustainability and development of businesses and organization solely rely on the geometric progression of the impact of information technology (IT); aside the significant impact on individual lives, many organizations globally have experienced increase in productivity, reduce costs, improvement on the quality of goods and services, enhance communication systems and promote good transportation systems. Every sector has direct impact of the information technology, and the level of development currently is directly proportional to the degree of the impact. In today`s world information technology has become pivotal element in the economic growth; many solutions to everyday challenges could not have been possible without the impact of information technology. Medical and surgical processes of restoring good health to many patients today would not exist, the possibility of travelling globally without difficulties, enhancing communications that has no limitation by location, and many more that makes lives meaningful and dreams achievable are made possible by the influence of information technology. This article will describe the influence of Information Technology in enhancing the growth and development of Nigeria in relation to various sectors such as; education, health, manufacturing industries, real estate, energy, utilities, to mention a few, which will promote business and global image
SHIA JAMOALARINING MUQADDAS JOYLARI VA ZIYORATLARI
Authors: Nigʻmatullayev Ibrohim
Published: October 2024

Maqolada shia jamoalarining muqaddas joylari va ziyoratlari haqidagi ma’lumotlar tadqiq etilgan. Shialarning Makka va Madinada amalga oshiradigan haj ziyoratidan keyingi asosiy ziyorat joyi hisoblangan Najaf, Karbalo, Qum va Mashhad shaharlari haqidagi ma’lumotlar berilgan. Shuningdek, shia jamoalari orasida “atabat”, “atabat-e aliyat” yoki “atabat-e moqaddasa”, “arbain” deb ataluvchi muqaddas joylar tarkibidagi ziyoratgohlar o‘rganilgan.
TURIZM SOHASIDA EKOLOGIK BILIM VA EKOLOGIK MADANIYATNI YUKSALTIRISH
Authors: Muminov Azizbek
Published: October 2024

Ushbu maqolada turizm, ekologik bilim, ekologik ta’lim, atrof-muhitni muhofaza qilish va ekologik muvozanatni ta’minlash, ekologik madaniyatni yuksaltirish, tabiatni muhofaza qilishda jamoatchilikning faolligini oshirishga oid O‘zbekiston Respublikasi farmon va qarorlari, turizm sohasida ekologik bilim va madaniyatni yuksaltirish bo‘yicha taklif va tavsiyalar berilgan.
ИННОВАЦИОН ТАДБИРКОРЛИК ФАОЛИЯТНИ МОЛИЯЛАШТИРИШНИНГ НАЗАРИЙ- УСЛУБИЙ АСОСЛАРИ
Authors: Атамурадов Шерзод , Самадов Салохиддин
Published: October 2024

Мақолада инновацион тадбиркорлик фаолиятини молиялаштиришнинг назарий-услубий асослари бўйича маълумотлар келтирилган, шунингдек, инновацион жараёнлар, инновацияон фаолият тушунчаларига батафсил таърифлар берилган. Шунингдек, инновация ҳаёт циклининг асосий босқичлари келтириб ўтилган
TURIZM SOHASIDA XIZMAT KO‘RSATISH TURLARI VA UMUMIY OVQATLANISH SHOXOBCHALARINING FAOLIYATI SAMARADORLIGINI TAHLIL QILISH VA BAHOLASH
Authors: Amiriddinova Muslima
Published: October 2024

Maqolada turizm sohasida xizmatlardan biri bo‘lmish umumiy ovqatlanish shoxobchalarining faoliyati samaradorligini oshirish hamda baholash zaruriyati va muhim jihatlariva rivojlanish modeli ishlab chiqilgan. Umumiy ovqatlanish shoxobchalarini faoliyatini samaradorligini tahlil qilish uchun turistlarning yosh, gender tahlili olib borilgan bo‘lib qaysi turdagi turistlar ko‘proq umumiy ovqatlanish shoxobchalariga tashrif buyurishi bo‘yicha tahlillar asosida baholashga oid mexanizmlar taklifi ko‘rsatib o‘tilgan.
HADISLARDA INSONNING GO‘ZAL FAZILATLARI XUSUSIDA
Authors: Tursunkulova Shaxnoza
Published: October 2024

Maqolada, insoniy go‘zal fazilatlar to‘g‘risida falsafiy fikr-mulohazalar berilgan bo‘lib, hadislarda yozilgan insoniy fazilatlar va ularning o‘ziga xos xususiyatlari tahlil qilingan. Insoniy go‘zal fazilatlarning oilada, ota-ona tarbiyasi orqali shakllanishi manbalar misolida ochib berilgan
YANGI O‘ZBEKISTON TARAQQIYOTIDA ZAMONAVIY KADRLAR TAYYORLASH TIZIMINING INNOVATSION ISTIQBOLLARI
Authors: Tojaliyev Abduqosim
Published: October 2024

Mamlakat taraqqiyotining hozirgi bosqichida ijtimoiy-iqtisodiy rivojlanishning asosiy faktorlaridan biri hisoblangan raqobatbardosh kadrlar tayyorlash ishini yangi innovatsiyalar asosida tashkil qilish muhim vazifa hisoblanadi. Insoniyat sivilizatsiyasining yangi bosqichga ko‘tarilishi fan va texnika sohasidagi erishilgan yutuqlar bevosita inson omiliga bog‘liq bo‘lgan jarayondir. Rivojlangan mamlakatlar tajribasi shundan dalolat beradiki, taraqqiyotni asosiy harakatlantiruvchi omillardan biri yuqori malakali kadrlar tayyorlash tizimining yaratilganligi bilan harakterlanadi. Raqobatbardosh kadrlarning innovatsion fikrlarini jamiyatning barcha jabhalarida o‘z vaqtida qo‘llash davlat, jamiyat hamda shaxsning faol va samarali taraqqiyoti uchun yangi imkoniyatlarni yuzaga keltiradi. Ushbu maqolada yangi O‘zbekiston taraqqiyotida zamonaviy kadrlar tayyorlash tizimining innovatsion istiqbollari falsafiy jihatdan tadqiq etilgan.
ASSOSIATIV LINGVISTIKA VA UNING XUSUSIYATLARI
Authors: Mirzakamolova Maftuna
Published: October 2024

Maqolada "Yaxshi" leksemasining insoniy fazilatlar boʻyicha assotsiatsiyalari va ushbu assotsiatlarning diaxronik tahlildagi o‘ziga xosligi, shuningdek, til ta’limida kognitiv-pragmatik yondashuvning o‘rni va o‘quvchining tafakkur ko‘lamini kengaytirishdagi hissasi tadqiq etiladi.
LINGUISTIC AND CULTURAL CHARACTERISTICS OF TONGUE TWISTERS: A LITERATURE REVIEW
Authors: Surmilova Elena
Published: October 2024

The article looks at the history of the research done around tongue-twisters from the linguistic and cultural points of view. Phonological, stylistic and syntactic features that contribute to the complexity of tongue-twisters has been explored. Additionally, the review ehamines the significance of tongue-twisters as the way of linguistic reflection of culture.
O‘ZBEK SHOIRLARI VA ADIBLARI IJODIDA CHINOR DARAXTI OBRAZI
Authors: Ibragimova Gulshan
Published: October 2024

Ushbu maqolada o‘zbek shoirlari va adiblari asarlarida chinor obrazining badiiy talqini tadqiq etiladi. Chinor o‘zbek xalqining milliy-madaniy, ma’naviy hayotida alohida o‘rin tutuvchi muqaddas daraxt sanaladi. Maqola chinor obrazi qo‘llanilgan o‘zbek she’riyati va nasri namunalarini tahlil qilish, chinorga bog‘liq ramziy ma’nolarni sharhlash, bu obrazning o‘zbek adabiyotidagi o‘ziga xos badiiy xususiyatlarini ochib berishga bag‘ishlangan.
TERRORIZMNING KELIB CHIQISH SABAB VA OMILLARI
Authors: Yakubov Xushnudbek
Published: October 2024

Maqolada terrorizmning kelib chiqish sabab va omillari, ushbu sabab va sharoitlarni bartaraf etish bo‘yicha ijtimoiy-iqtisodiy, siyosiy, huquqiy, ma’naviy va tashkiliy sohalarda kompleks umumijtimoiy va maxsus kriminologik tadbirlar, terrorizmning ba’zi psixologik jihatlari, individual va ijtimoiy-psixologik yondashuv va qarashlarning asosiy jihatlari tahlil qilingan.
BO‘LAJAK PEDAGOGLARNING MEDIA KOMPETENTLIGINI RIVOJLANTIRISHNING ASOSIY YO‘NALISHLARI
Authors: Fayziyeva Dildora , Rajabova Gulchexra
Published: October 2024

Hozirgi kunda pedagog-xodimlarning professional darajada kundalik ishlarda axborot kommunikatsion texnologiyalar orqali kasbiy faoliyatini tashkil  etishi dolzarb masala hisoblanadi. Ayniqsa, talaba-yoshlarning ijtimoiy-tarmoqlarda faolligini inobatga olgan holda ular uchun turli dasturiy mahsulotlardan foydalanish bo‘yicha yo‘riqnoma kontentlar tayyorlash ham muhimdir. Xususan, oliy ma’lumotga ega bo‘lgan xodimlar professional darajada kundalik ishlarida zamonaviy AKT (axborot kommunikatsion texnologiyalar)dan foydalanishi ular ishlayotgan sohada ish unumdorligini oshishiga xizmat qiladi. Maqolada axborot texnologiyalarini kasbiy faoliyatda qo‘llash  fani doirasida turli video topshiriqlar hamda ijtimoiy tarmoqlar imkoniyatidan foydalanib quiz test topshiriqlari orqali media kompetentlikni rivojlantirish misollar orqali yoritilgan.
КРЕАТИВ ТАЪЛИМНИ ЖАМИЯТ РАВНАҚИДАГИ АҲАМИЯТИ
Authors: Юсупов Лутфуллоҳ
Published: October 2024

Креативлик сўзи бугунги кунда барча соҳаларда кенг истеъмолга кирди ва бу асосан компания ва ташкилотларнинг янада рақобатбардош бўлиш эхтиёжи ва мактабларда тестга асосланган таълимдан кўра ўқувчиларни фикрлашга йўналтирилган таълимга ўтиш зарурати туфайлидир. Дунёнинг турли давлатларининг таълим соҳасидаги масъуллари умумтаълим мактабларида ўқитилаётган барча фанларнинг ўқув дастурларида ўқувчиларнинг креативлик, ижодкорлик салохиятларини ривожлантиришга кўпроқ эътибор қаратишга чақиради ҳамда таълим ислохотларининг самарадорлиги ушбу компетенцияларни қай даражада ривожланганлигига боғлиқ деб ҳисоблашади. Мисол учун, яқинда Буюк Британиянинг анъанавий йиллик ҳисоботида, Буюк Британиянинг иқтисодий фаровонлиги ва ижтимоий ҳамжиҳатлиги, креатив ва маданий таълим тизими бўйича миллий стратегияни ишлаб чиқилишига боғлиқ дея хулоса келтирилган [1].
Depressive and anxiety disorders in patients of plastic surgeons and aestheticians
Authors:   Patrice Lumumba Peoples’ Friendship University of Russia, Moscow, Russia, Medvedev Vladimir E. ,   International Institute of Psychosomatic Health, Moscow, Russia, Frolova Veronica I. ,   Patrice Lumumba Peoples’ Friendship University of Russia, Moscow, Russia, Martynov Sergey E. ,   International Institute of Psychosomatic Health, Moscow, Russia
Published: October 2024

The data have been acquired that 31.7% of patients of aestheticians and plastic surgeons meet the criteria of depressive disorders, while 36.7% meet the criteria of anxiety disorders. The signs of increased individual or public attention, as well as social fear are reported in 63% of patients. The study results suggest the need to conduct a comprehensive diagnostic examination, to apply treatment and rehabilitation measures involving psychiatrist (therapist) in this cohort of patients.
The importance of clinical and dynamic parameters of patients with combined addiction on psychoactive substances at the stage of medical rehabilitation
Authors:   Moscow Scientific and Practical Center of Narcology, Moscow, Russia, Poplevchenkov Konstantin N. , Agibalova Tatyana V. ,   Moscow Scientific and Practical Center of Narcology, Moscow, Russia; Patrice Lumumba Peoples’ Friendship University of Russia, Moscow, Russia; Russian Medical Academy of Continuous Professional Education, Moscow, Russia, Buzik Oleg Zh. ,   Moscow Scientific and Practical Center of Narcology, Moscow, Russia; Russian Medical Academy of Continuous Professional Education, Moscow, Russia, Masyakin Anton V. ,   Moscow Scientific and Practical Center of Narcology, Moscow, Russia; Central State Medical Academy of the Оffice of the President of the Russian Federation, Moscow, Russia
Published: October 2024

According to official statistics, the number of patients with combined addiction of psychoactive substances increases annually. At the same time, the effectiveness of therapy for such disorders remains at a low level. Aim. To study the clinical characteristics of patients with combined addiction of psychoactive substances in dynamics to improve the effectiveness of rehabilitation. Material and methods. 204 patients with combined addiction of psychoactive substances, men and women aged 18 to 50 years, who underwent inpatient treatment at the Moscow Scientific and Practical Center of Narcology, were examined. The patients were divided into 4 groups addiction on the combinations of psychoactive substances. Methods: clinical-psychopathological, anamnestic, psychometric (Visual-analog scale of pathological drug addiction, Montgomery–Asberg depression assessment scale, Beck depression severity self-assessment scale), statistical. The patients were examined on the 8–10th day and the 20–30th day of therapy. Further, the patients were followed by catamnestic observation for 12 months. Their mental status, quality and duration of remissions were assessed. Results. In patients with combined addiction of cannabinoids and psychostimulants and alcohol and psychostimulants, a lower percentage of hereditary burden, less pronounced antisocial personality traits, and a lower intensity of pathological attraction to psychoactive substance, especially behavioral and affective components, were revealed compared with patients with combined addiction of opioids and psychostimulants and addiction of several psychoactive substances. Patients with combined addiction of opioids and psychostimulants and several psychoactive substances at once had shorter remissions. Conclusion. Among patients with combined addiction of psychoactive substances, associations were found between the premorbid characteristics of patients, clinical features and quality, and duration of remissions. This will create a personalized approach to the rehabilitation of such patients and increase the effectiveness of therapy.
Dissociative mutism, tetraparesis and the role of unidentified psychotraum. The case of Iskander H.
Authors:   Kazan State Medical University, Kazan, Russia, Mendelevich Vladimir D. , Nesterina Maria K. ,   Kazan State Medical University, Kazan, Russia, Mendelevich Elena G. ,   Kazan State Medical University, Kazan, Russia, Davletshina Reseda I. ,   Kazan State Medical University, Kazan, Russia
Published: October 2024

The article presents a unique clinical case of a twenty-year-old patient, Iskander, whose clinical picture of the disease combined mutism and functional tetraparesis. The disease developed acutely, manifested itself with a “panic attack” and subsequently throughout the year the condition remained unchanged – he could not move independently (only in a wheelchair), there was no speech. All attempts to identify traumatic events or traumatic experiences have failed. Based on a review of the literature, the article analyzes the possibility of the formation of dissociative (functional) disorders without connection with psychological tramatization. It is noted that, in accordance with modern scientific views, the relationship between dissociative disorders and mental trauma is not proven and obvious. However, it remains unclear – if not psychological trauma, then what in this case causes functional (dissociative, conversion) disorders?