bluuebunny/crossref_metadata_2025 huggingface dataset:
Self-Rehabilitation Through Dance: An Ethnographic Study on Candy Girls Breast Cancer Survivor Group in Kuala Lumpur, Malaysia
Authors:   Dance Department, Faculty of Creative Arts, Universiti Malaya, Kuala Lumpur, Malaysia, Thiagarajan Premalatha , Mokthar Mohammad Khairi ,   Dance Department, Faculty of Creative Arts, Universiti Malaya, Kuala Lumpur, Malaysia
Published: April 2022

This study intends to examine a breast cancer survivor group called the Candy Girls. Candy Girls comprises 26 to 30 women (aged between 40 and 73 years), who are breast cancer survivors in the post-clinical phase. They all have successfully undergone various combinations of treatment such as lumpectomy, mastectomy, radiotherapy and chemotherapy for breast cancer and are on the path to recovery and post-recovery. In 2010, this group came together for a year-long research conducted by the Universiti Malaya’s Faculty of Medicine through the Department of Rehabilitation Medicine. Realising the benefits of exercise for the well-being of cancer survivors, Candy Girls decided to continue dancing on their own even after the completion of the research study. With the support of breast surgeons at the University of Malaya Medical Centre (UMMC), this group began a weekly three-hour self-administered exercise session, that is still, to this day, taking place every Saturday. Their activities focus primarily on dance. The group gradually expanded dance genres by incorporating line dance, Latin dances-based Zumba sessions, Malay folk dance forms such as joget and zapin, and Bollywood dance. While the multi-ethnic women are determined to stay healthy and happy through their weekly dance routines, they have made significant impact on women at large by performing dances at Breast Cancer Relays, Awareness Campaigns and Health Conferences. By engaging with this community of survivors, the researchers have not only been able to observe their activities but also to support them through additional yoga and dance trainings. The act of giving back to the community has further strengthened the researchers' relationship with the study subjects and has allowed deeper engagement with the community. This ethnographic research shows that dance as self-rehabilitation, not only enhances physical mobility and emotional well-being, but forges a strong group solidarity among the women as a much-needed support system for survivors.
Ayam Sebagai Rujukan Makna Inkuisitif Berhati-hati, Sia-Sia dan Khianat Dalam Peribahasa Melayu
Authors:   Centre for Language Learning, Universiti Teknikal Malaysia Melaka, Melaka, Malaysia, Daud Muhammad Zaid , Subet Mary Fatimah ,   Faculty of Language and Communication, Universiti Malaysia Sarawak, Sarawak, Malaysia
Published: April 2022

Malay proverbs which are sourced from chicken, are 90 in total. Various references of chicken have been created by the Malays to mirror the behaviours and actions of human beings implicitly. Each of the references can provide lessons, advices and reprimands in a gentle manner and can still be used up to today. The attributes of “careful”, “useless” and “betrayal” are among these references. In order to analyse the data of these proverbs, the research will use the Inquisitive Semantics Approach, besides the application of bridging cross reference (BCR) based on the corpus data obtained from Pangkalan Korpus Dewan Bahasa dan Pustaka (DBP) and Malay Concordance Project (MCP). Therefore, as the objective of this study, the researchers will explore the reasons why the Malay community choose the imagery of chicken. Each of these references will benefit the authentic data which are related to the cognition, culture and intellect of the Malay community in itself. This research employs fully qualitative approaches through documentary analysis that involves the Malay proverb data which have been recorded beforehand. The findings of these proverbs data are collected from Kamus Peribahasa Melayu Edisi Kelima, Kamus Istimewa Peribahasa Melayu Edisi Kedua and Kamus Peribahasa Melayu using the purposive sampling method. In conclusion, this study finds that the inquisitive semantics approach is capable of uncovering the Malay proverbs’ meanings which are not confined only to literal and cognitive understandings but reflect also the height of intellect and philosophy of the Malays themselves.
Fractons in curved space
Authors: Jain Akash , Jensen Kristan
Published: April 2022

We consistently couple simple continuum field theories with fracton excitations
to curved spacetime backgrounds. We consider homogeneous and
isotropic fracton field theories, with a conserved U(1) charge and dipole
moment. Coupling to background fields allows us to consistently define a
stress-energy tensor for these theories and obtain the respective Ward
identities. Along the way, we find evidence for a mixed gauge-gravitational anomaly in the symmetric tensor gauge theory which naturally couples to conserved dipoles. Our results generalise to systems with arbitrarily higher conserved
moments, in particular, a conserved quadrupole moment.
Relações de trabalho e de poder entre imigrantes e empregadores na fronteira da Amazônia Legal: um estudo à luz de Foucault aplicando a Grounded Theory
Authors: Pellizari Kelly , Carvalho Neto Antonio
Published: April 2022

Este estudo investiga os impactos da imigração nas relações de trabalho (RTs) com foco nas relações de poder que integram as relações entre empregadores e imigrantes, tema muito raro na literatura em administração. O percurso metodológico baseou-se na Grounded Theory em sua perspectiva construtivista, o que possibilitou simultâneos processos de observação, coleta, tratamento, refinamento e análise de dados após sucessivas imersões a campo, que envolveram 40 entrevistas com imigrantes de diferentes nacionalidades e 9 empregadores que atuam na região fronteiriça da Amazonia Legal, no estado de Mato Grosso. A pesquisa mostrou os jogos de poder que acontecem a partir do impasse nas RTs entre imigrantes e os empregadores, em que a disparidade de poder é enorme, limitando a multivetorialidade das relações de poder dentro da perspectiva Foucaultiana. Aprofundou-se também no entendimento do papel social ocupado pelos imigrantes numa região distante dos centros industriais urbanos, onde poucas pesquisas são realizadas.
Derecho Internacional para la Protección de los Recursos Hídricos Compartidos en el Amazonas: Nuevas Dinámicas de Ciudadanía Ecológica, Bienes Comunes, y Soberanía
Authors: Becerra Dayana
Published: April 2022

La protección jurídica de los recursos hídricos amazónicos es un asunto de gran importancia para la preservación ambiental de esta región; sin embargo, la regulación y estudio teórico de las estrategias de protección transnacionales es un tema poco desarrollado en el ámbito regulativo y científico. Este articulo plantea a partir de la descripción de la importancia global de la Cuenca del Amazonas, de los normativa y de las instancias organizacionales y de gestión existentes, la necesidad de dinamización de la protección de sus recursos hídricos compartidos, mediante una propuesta teórica que pretende establecer transformaciones en nociones jurídicas y políticas como la ciudadanía y la soberanía, además de reflexionar sobre los bienes comunes desde una perspectiva de reconocimiento de la titularidad de estos recursos por los países amazónicos y sus comunidades, mediante un ejercicio de poder innovador.
Participação Popular e Perversão do Direito: Estudo das Alterações do Conselho Nacional do Meio Ambiente
Authors: Albuquerque Carolina de , Sousa Maria Carolina Chaves de , Olveira Celso Maran de
Published: April 2022

A criação do Conselho Nacional do Meio Ambiente (CONAMA) dentro do sistema da Política Nacional do Meio Ambiente criou um espaço participativo vinculativo para a criação de políticas públicas ambientais, em razão do formato de sua composição e funcionamento. Contudo, o Decreto 9.806/2019 reduziu e modificou as cadeiras representativas dos setores participantes, além de implementar outras mudanças no órgão. O objetivo é verificar se este Decreto foi capaz de alterar os níveis de participação popular e o formato de atuação cidadã no Conselho e se essa modificação pode ser classificada como uma das figuras de perversão do direito. A metodologia engloba revisão bibliográfica, estudo de caso e análise documental e jurisprudencial. Conclui-se que a alteração do CONAMA promovida pelo Decreto 9.806/2019 é significativa e implicou na alteração da relação entre o poder público e a sociedade, que deixou de ser de parceria, passando a ser uma relação informativa. Além disso, verifica-se a hipótese de perversão do Direito na modalidade fuga do direito, implicando no desfavorecimento da proteção ambiental.
Discourse Analysis of Online News on Green Economy and Blue Economy for Sustainable Development: The Case in Indonesia
Authors: Rasyid Syamsul Bahri Abd. , Purnomo Eko Priyo , Salsabila Lubna , Fathani Aqil Teguh
Published: April 2022

This study aims to describe the concept of a green economy and a blue economy in Indonesia in 2016-2020, to realize sustainable development, with indicators of poverty alleviation, employment, utilization of natural resources, and reduction of waste. The research method is qualitative-descriptive used by analyzing the news from five reputable online news media in Indonesia using NVivo 12 plus software and other literature related to research problems. The results showed that the intensity of reporting on the green economy discourse varies between each online news media, namely: labor absorption indicators are more dominant reported by Tribunnews.com and Kompas.com, natural resource management by Tempo.co, waste reduction by Detik.com, and poverty alleviation by Antaranews.com. Meanwhile, in the blue economy concept, the most dominant indicators reported are indicators of efficiency in using natural resources by Tempo.co and Kompas.com, poverty alleviation by Detik.com and Antaranews.com, and waste-free indicators by Tribunnews.com. Furthermore, word frequency analysis on the green economy concept shows that the most frequently reported topics are about the use of renewable energy, while in the blue economy concept, the most frequently discussed topics are about fish farming for sustainable food and the cleanliness of the oceans from waste. Compared to the blue economy concept, the green economy concept has been reported more by the media. However, the blue economy concept is a bit more favored because it is cheaper and more environmentally friendly/waste-free. This is because no waste is wasted at all on the concept of a blue economy.
Ungapan Beach: Partner Based Management to Improve a Sustainable Economy
Authors: Sumarmi Sumarmi , Untari Sri
Published: April 2022

The partnership between the Forest Village Community Institution (LMDH), the Tourism Awareness Group (POKDARWIS), and local communities in tourism development has a very important role. However, research on coastal management partnerships along the Southern Cross Route (JLS) Malang Regency has not been widely conducted. This study aimed to determine: (1) the physical condition of Ungapan Beach, (2) partnership of LMDH, POKDARWIS, and local communities in managing Ungapan Beach, (3) harmonization of partnerships between LMDH, POKDARWIS, and local communities in managing Ungapan Beach, (4) the management based on community partnerships of Ungapan Beach for sustainable community economic improvement. This research design used qualitative and quantitative research (mix method). Data collection was carried out by in-depth interviews, observation, semi-open questionnaires, and documentation. This study indicated that Ungapan Beach has a unique physical condition because it confluences between a river mouth and the sea. The partnership of Ungapan Beach management is carried out by Perhutani partnered with LMDH, and POKDARWIS carries out activities related to the events. The harmonization of the partnership between LMDH, POKDARWIS, and local communities has been shown from various joint management activities at Ungapan Beach in South Malang. LMDH manages beaches, manages parking, tickets, while POKDARWIS manages events for community activities such as shop owners, boat rentals, ATVs, lodging, outbound facilities, and camping equipment rental. The management based on partnership in Ungapan Beach can improve a sustainable economy.
Vulnerabilidade Ambiental ao Derramamento de Óleo em Santarém (PA)
Authors: Palheta Dayara Bastos , Dourado Fábio Ferreira , Meneses Anderson Alvarenga de Moura , Rodrigues Suzan Waleska Pequeno , Andrade Milena Marília Nogueira de
Published: April 2022

Derramamentos de óleo podem impactar o ambiente natural e antrópico. O objetivo do presente trabalho trata do mapeamento da vulnerabilidade ambiental ao derramamento de óleo, provenientes dos transportes fluviais, comercias e turísticos na orla da cidade de Santarém (estado do Pará). Para isso, foram utilizados como base mapas temáticos de: uso/ocupação do solo e cobertura vegetal, declividade, solo, geologia e de inundação, aplicando análise e modelagem em (SIG), através da álgebra de mapas, em categorias hierárquicas de acordo com classes de vulnerabilidade para cada variável mapeada, com valores de “1” (menos vulnerável) a “5” (mais vulnerável). A análise do mapa de vulnerabilidade ambiental, demonstrou regiões de alta e muito alta vulnerabilidade localizadas na área urbana onde ocorrem inundações. A predominância da classe de média vulnerabilidade, correspondente a 45% dos resultados devido principalmente à interação da classe de uso do solo com a unidade litológica de sedimentos referentes ao Depósitos Aluvionares e a Formação Alter do Chão. Nesta classe está inserido o Porto Organizado de Santarém com atividades intensas de transporte de cargas e pessoas. Assim, os resultados produzidos servem de instrumento auxiliar ao planejamento ambiental para as regiões mais vulneráveis ao derrame de óleo na orla de Santarém – PA.
Tilapicultura em Sistema de Bioflocos: um Investimento Rentável no Estado do Pará?
Authors: Silva Leonilton Rodrigues Barbosa da , Brabo Marcos Ferreira , Santos Marcos Antônio Souza dos , Pereira Mayara da Costa , Costa Breno Gustavo Bezerra , Silva Kátia Cristina de Araújo
Published: April 2022

O cultivo de tilápia no estado do Pará passou a ser permitida exclusivamente em sistemas fechados pela Resolução n° 143, de 20 de dezembro de 2018, do Conselho Nacional do Meio Ambiente (CONAMA). Portanto, o objetivo deste estudo foi analisar a viabilidade econômica da produção de tilápia Oreochromis niloticus em sistema de bioflocos no estado do Pará. O custo de implantação foi estimado para um empreendimento hipotético localizado no município de Paragominas com capacidade de produzir 30 toneladas.ano-1. O custo de produção foi estimado pela metodologia do custo operacional considerando um ciclo produtivo de 120 dias, peso de abate de 0,4 kg, conversão alimentar de 1,4:1 e produtividade de 15 kg.m-3.ciclo-1. Posteriormente, foram gerados indicadores de eficiência econômica para os preços de comercialização de R$ 7,00.kg-1, R$ 8,50.kg-1 e R$ 10,00.kg-1. O custo de implantação foi de R$ 137.789,6, o custo total da produção de R$ 228.840,5 e o custo de produção de R$ 7,57.kg-1. A comercialização a R$ 7,00.kg-1 é inviável financeiramente e os melhores indicadores econômicos ocorrem com o preço de R$ 10,00.kg-1. Contudo, a comercialização a preços mais expressivos exigirá do empreendedor a busca por mercado mais atraente, haja visto que há municípios com o preço de venda inferior ao custo de produção encontrado neste estudo, como o município de Paragominas. Concluiu-se que o custo de produção da tilapicultura em sistema de bioflocos exigirá do empreender dispor de estratégias para a comercialização da produção no estado do Pará.
Design and Analysis of Math Function Based Controller Combined with Fuzzy Logic Applied to the Solar-Powered Electric Vehicle
Authors: Katuri Raghavaiah , Gorantla Srinivasa Rao
Published: April 2022

The transition between the battery and ultracapacitor (UC) according to the driver requirements is the key obstacle that is related to the hybrid energy storage system (HESS) powered electric vehicles (EVs). In this effort, an innovative control scheme has been proposed, to switch the power sources corresponding to the vehicle dynamics. An MFB controller is considered with 4- math functions and programmed independently. Thereafter, a new hybrid controller has been formed by joining the designed MFB controller with an artificial neural network (ANN) to achieve the precise transition between battery and UC. The battery gets charged from the photovoltaic (PV) panel corresponding to the irradiance and temperature availability. The charging and discharging periods of battery mainly depending upon the control switches (CS) present in the circuit. From those two controllers, ANN generates required switching pulses whereas the MFB controller regulates the pulse depending upon the speed of the motor. Finally, the combination of MFB with ANN controller produces the required pulse signals to switches present in unidirectional (UDC) and bidirectional converter (BDC) related to the speed of the motor. The MATLAB/Simulink model of the system is done in four modes with different loads, and all results are discussed in the simulation and results section.
Los Límites del Futuro: Tecnociencia, Ética y Gobernanza de los Bienes Comunes
Authors: Fiorino Víctor Rafael Martin , Arrieta-López Milton , Ávila-Hernández Flor Maria , Martínez Yanelis Ramos
Published: April 2022

El artículo estudia las etapas de la evolución del concepto de límite, aplicado al poder del conocimiento, a las intervenciones humanas sobre la cultura y sobre el ambiente y a la condición humana misma y deriva de ello los caracteres de las diferentes propuestas de una ética de la corresponsabilidad hacia el futuro. A partir de la caracterización del pensamiento del límite, el análisis se centra en establecer los desafíos éticos y políticos en relación con la construcción de lo común, visto desde la relación interhumana y en una perspectiva bioética y biopolítica. Desde la relación entre gobernabilidad y gobernanza, examina las posibilidades y limitaciones que se plantean actualmente acerca de la gobernanza de los bienes comunes.
Variación Morfológica en Semillas de 20 Especies Leñosas Nativas en un Bosque Seco Sudamericano
Authors: Romero-Saritama José Miguel , Castillo Andrea Estefanía Bedoya
Published: April 2022

Los bosques secos constituyen fragmentos de alta diversidad biológica y cada vez está más amenazados por factores antrópicos. La falta de estudios en esos ecosistemas agrava más el problema. Conocer las estructuras de las plantas que podrían modular su actitud frente a diferentes condiciones ambientales y antrópicas es fundamental. El objetivo del presente trabajo fue identificar la diversidad de rasgos morfológicos de semillas de especies forestales distribuidas en un remanente de bosque seco ecuatoriano. La mayoría de las especies presentaron semillas ovaladas, redondas con testa dura, lisa y brillante. El tamaño pequeño identificado en las semillas sigue patrones similares a los encontrados en otros bosques secos de la región, a excepción del tipo de dispersión que fue diferente. Los rasgos encontrados en las semillas son importantes para su manejo y conservación, pero sobre todo para la sobrevivencia in situ a la hora de enfrentar futuras condiciones ambientales adversas en zonas áridas.
Prognostic Value and Biological Role of miR-126 in Breast Cancer
Authors: Soofiyani Saiedeh Razi , Hosseini Kamran , Ebrahimi Tahereh , Forouhandeh Haleh , Sadeghi Mohammadreza , Beirami Sohrab Minaei , Ghasemnejad Tohid , Tarhriz Vahideh , Montazersaheb Soheila
Published: April 2022

In eukaryotic organisms such as humans, some noncoding single-stranded RNAs (ncRNAs)
contribute to regulating the expression of some genes before and after the transcription process, which
in turn controls a number of vital physiological processes, including cell proliferation, differentiation,
invasion, angiogenesis, and embryonic development. miR-126 is one of these miRNAs expressed exclusively
in endothelial cells such as capillaries and vessels involved in controlling angiogenesis. In recent
years, the link between miRs such as miR-126 and the pathology of breast cancer has attracted the
attention of many researchers. Numerous studies have shown that miR-126 may be able to suppress
tumor tissue metastasis or to increase tumor metastasis through complex molecular mechanisms. There
is ample clinical evidence that miR-126 can be used as a biomarker to predict and diagnose breast cancer
due to the increased or decreased expression of certain genes in breast cancer tissue. In this review,
we discuss the association between the growth and metastasis (tumorigenesis) of breast cancer and
miR-126, as well as the relationship between current research advances in the prognosis, diagnosis,
and treatment of breast cancer and miR-126.
The Core Human MicroRNAs Regulated by Toxoplasma gondii
Authors: Antil Neelam , Arefian Mohammad , Kandiyil Mrudula Kinarulla , Awasthi Kriti , Prasad Thottethodi Subrahmanya Keshava , Raju Rajesh
Published: April 2022

Background:

Toxoplasma gondii (T. gondii) is an intracellular zoonotic protozoan parasite
known to effectively modulate the host system for its survival. A large number of microRNAs
(miRNAs) regulated by different strains of T. gondii in diverse types of host cells/tissues/organs
have been reported across multiple studies.

Objective:

We aimed to decipher the complexity of T. gondii regulated spectrum of miRNAs to derive
a set of core miRNAs central to different strains of T. gondii infection in diverse human cell
lines.

Methods:

We first assembled miRNAs hat are regulated by T. gondii altered across the various assortment
of infections and time points of T. gondii infection in multiple cell types. For these assembled
datasets, we employed specific criteria to filter the core miRNAs regulated by T. gondii.
Subsequently, accounting for the spectrum of miRNA-mRNA target combinations, we applied a
novel confidence criterion to extract their core experimentally-validated mRNA targets in human
cell systems.

Results:

This analysis resulted in the extraction of 74 core differentially regulated miRNAs and
their 319 high-confidence mRNA targets. Based on these core miRNA-mRNA pairs, we derived the
central biological processes perturbed by T. gondii in diverse human cell systems. Further, our analysis
also resulted in the identification of novel autocrine/paracrine signalling factors that could be
associated with host response modulated by T. gondii.

Conclusion:

The current analysis derived a set of core miRNAs, their targets, and associated biological
processes fine-tuned by T. gondii for its survival within the invaded cells.
Tennis service teaching materials for student of faculty of sport science (FSS) – Universitas Negeri Padang (UNP)
Authors: Wulandari Indri , Andria Yogi , Aini Khurotul , Agus Apri , Amra Frizki
Published: April 2022

This research is long-term research with research and Development. Development of tennis service training model for students which the author will develop is a service training model that has existed previously and then developed to be more varied, easy to understand and use the help of a feeder. The development of tennis service training is a program whose main objective is to help students learn one of the basic techniques of tennis easily and efficiently because tennis is a practical course that must be taken and must pass within 4 months of face-to-face lectures. Researchers adopted in stages as follows: the Borg and Gall development (R&D) model which was modified into a simpler model, namely: 1) conducting research and collecting information data by providing needs analysis instruments to FSS UNP students; 2) making initial product designs tennis service practice guide; 3) evaluation of experts with qualifications, namely, 1 coaching expert and 1 tennis expert; 4) first product revision; 5) small group trial; 6) second product revision; 7) field trial (large group) by testing the results of the second product revision; 8) revision of the final product (if there are inputs or suggestions from and field trials)
İLKOKUL 4.SINIF SOSYAL BİLGİLER DERS KİTABININ EVRENSEL DEĞERLER AÇISINDAN İNCELENMESİ
Authors: Taş Halil
Published: April 2022

İlkokul 4.sınıf sosyal bilgiler ders kitabının evrensel değerler açısından incelenmesini amaçlayan bu araştırmada, evrensel değerlerin ders kitabında nasıl bir dağılım gösterdikleri ve öğrenme alanlarıyla nasıl ilişkilendirildikleri mercek altına alınmıştır. Nitel araştırma yöntemlerinden durum çalışmasıyla desenlenmiş olan bu çalışmada doküman incelemesi yöntemi kullanılmıştır. MEB Talim ve Terbiye Kurulu Başkanlığı tarafından beş yıl süreyle ders kitabı olarak okutulmasına karar verilen “İlkokul Sosyal Bilgiler 4 Ders Kitabı” araştırmanın temel dokümanını/veri kaynağını oluşturmaktadır. Sosyal bilgiler ders kitabından elde edilen veriler betimsel analiz ile çözümlenmiştir. Verilerin analizinde MAXQDA 11.01 programı kullanılarak her biri değeri farklı bir renkle ifade eden tablo hazırlanarak kitapta bulunan değerlerin yoğunluk durumları ortaya konmuş; ayrıca kitapta yer alan değerlerin tekrarlanma sıklıklarına ilişkin olarak frekans tablosu hazırlanmıştır. Araştırmada, sosyal bilgiler ders kitabında en fazla sorumluluk, dayanışma ve vatanseverlik değerlerinin yer aldığı; bu değerleri sırasıyla saygı, sevgi, yardımseverlik, duyarlılık, tasarruf, özgürlük, çalışkanlık, aile birliğine önem verme, eşitlik, bağımsızlık, dürüstlük, barış, bilimsellik, adalet ve estetik değerlerinin takip ettiği belirlenmiştir.
Beyond burnout culture? Artistic imaginations of care (crisis) in Barbara Raes' Zon dag kind and Els Dietvorst's Field Guide
Authors: De Mul Sarah
Published: April 2022

Recent studies of contemporary burnout culture, as I will argue, have much to gain from recent feminist critical theorisations and artistic imaginations of care (crisis). The suggestion is indeed to re-think burnout culture in relation to capitalism’s care crisis in order to bring into view the valuable perspectives offered by feminist theorizations and artistic imaginations, which have thus far been largely side-lined, or not properly been considered in the discussion.Closereading Zon dag kind by Barbara Raes and Field Guide by Els Dietvorst, I show that both works challenge conventional artistic boundaries so as to carry out experiments in sociability which help us imagine caring subjects and a sense of community, which can be seen as an important part of the answer to the self-sufficient entrepreneurial individual in our neoliberal society, in particular, to his or her total exhaustion and other related mental and affective states.
A Study on Visual Cognitiveness through Cartoon in Adults with Mild Intellectual Disabilities
Authors: Jang EunYoung , Kim Whasoo
Published: April 2022

Purpose: The purpose of this study was to identify the qualitative difference between the reasoning comprehension ability (bridging, elaborative, inference on emotional response) and speech bubble filling expressions in cartoons of the adult group with mild intellectual disability and the group of general students who matched their language age.Methods: The subjects were 15 adults with mild intellectual disability aged 18~21 years old, 15 students aged 11~12 years old, and 15 general students who matched their language age, totaling 30 subjects.Results: First, it is confirmed that there was a significant difference between the two groups according to the type of reasoning in the ability to understand reasoning shown in the cartoon. By group, emotional response > elaborative > bridging inference was shown in the case of adult groups with mild intellectual disabilities, and bridging > elaborative > emotional response inference in the case of general student groups. Second, the qualitative analysis with the Likert scale in the cartoon inference expression showed significant differences in each fluency evaluation type. In addition, both groups were averaged in order of pronunciation > speech speed > intonation > grammar.Conclusion: It can be seen that adults with mild intellectual disabilities have difficulty of inferring any content that is not shown between scenes through other scenes, and that various vocabulary uses have not appeared in the context.
Hearing Status and Noise Exposure Levels of Workers at a Laundry Plant in Sri Lanka
Authors: Ileperuma Dinukshi , Arachchige Ishanka Ranawaka
Published: April 2022

Purpose: The aim of this study was to determine the hearing status and noise exposure levels of workers at a laundry plant in Sri Lanka.Methods: A descriptive cross-sectional study was done to determine the noise levels workers were exposed to during their shifts, to evaluate hearing-related complaints, to evaluate audiometric measures of the workers, and lastly to determine the association between the job category and hearing status. The study included 107 workers between the age of 20~50 years. Noise levels of the laundry plant were measured and data was gathered via an interviewer-administered questionnaire and screening and diagnostic hearing tests were performed.Results: The minimum and maximum noise levels were 63.1 dBA and 100.3 dBA. Among workers, 40.18% indicated abnormal audiograms. Among those who had abnormal audiograms, 31.77% were diagnosed with noise induced hearing loss (NIHL) in the right ear while 28.03% had NIHL in the left ear.Conclusion: There was no significant association between the degree of hearing loss and exposure duration of the workers as well as hearing status with reference to the job category. However, the workers in the dryer and hydro sections were at high risk for NIHL, as the mean Leq levels at the laundry plant exceeded the 85 dBA action level recommended by the Occupational Safety and Health Administration (OSHA). Hence it can be concluded that laundry plants are hazardous occupational settings for hearing loss, thus preventive measures, such as hearing conservation programs must be adopted for the well-being of workers.
Фазовые превращения в композитных пленках системы Se-Cu, полученных взрывной кристаллизацией и термическим отжигом
Authors: Когай В.Я. , Могилева Т.Н. , Фатеев А.Е. , Михеев Г.М.
Published: April 2022

The results of experimental studies of the phase transformation in composite films of the Se-Cu system obtained in vacuum as a result of the sequential thermal deposition of selenium and copper on a glass substrate are presented. At a fixed thickness of the selenium layer (45 nm), the effect of the thickness of the copper layer (40 - 115 nm) on the phase composition of the synthesized films formed as a result of explosive crystallization occurring during the interaction of hot copper clusters with low-melting selenium was studied. It was found that the subsequent thermal annealing of the synthesized films is accompanied by a significant change in their phase composition and optical transmission spectra.
Рост тонкопленочных AlGaN/GaN эпитаксиальных гетероструктур на гибридных подложках, содержащих слои карбида кремния и пористого кремния
Authors: Середин П.В. , Радам Али Обаид , Голощапов Д.Л. , Леньшин А.С. , Буйлов Н.С. , Барков К.А. , Нестеров Д.Н. , Мизеров А.М. , Тимошнев С.Н. , Никитина Е.В. , Арсентьев И.Н. , Шарофидинов Ш. , Вавилова Л.С. , Кукушкин С.А. , Касаткин И.А.
Published: April 2022

We carried out a structural-spectroscopic study of
AlGaN/GaN epitaxial layers grown by molecular-beam epitaxy
with nitrogen plasma activation on a hybrid substrate containing
layers of silicon carbide and porous silicon. Using X-ray
diffractometry, Raman and photoluminescence spectroscopy, it is
shown that thin films formed on a hybrid substrate have minimal
residual stresses and intense photoluminescence.
Поляризационные процессы в тонких слоях стеклообразной гибридной системы Ge-=SUB=-28.5-=/SUB=-Pb-=SUB=-14.0-=/SUB=-Fe-=SUB=-1.0-=/SUB=-S-=SUB=-56.5-=/SUB=-
Authors: Кастро Арата Р.А. , Грабко Г.И. , Кононов А.А. , Анисимова Н.И. , Крбал М. , Колобов А.В.
Published: April 2022

The results of the investigations of the polarization
properties in thin layers of vitreous Ge28.5 Pb14.0Fe1.0S56.5 are
presented. A process of dipole-relaxation polarization was
discovered, the activation energy of which turned out to be equal to
Ea = (0.97 ± 0.14) eV. It has been determined that charge transfer
in the Ge28.5Pb14.0Fe1.0S56.5 hybrid system is a thermally activated
process with an activation energy of Ea = (0.54 ± 0.01) eV. The
calculation results allow us to conclude that the glass-forming ca-
pacity of the (Ge28.5 Pb15.0S56.5)100−x Fex system decreases linearly
with an increase in the proportion of metal in the glass structure.
Влияние низкой температуры на электрофизические и шумовые характеристики ультрафиолетовых светодиодов на основе структур с квантовыми ямами InGaN/GaN
Authors: Иванов А.М. , Клочков А.В.
Published: April 2022

Comparison of optical power, external quantum efficiency in InGaN / GaN UV LEDs at room temperature and liquid nitrogen temperature is carried out. The spectral densities of the current low-frequency noise have been investigated. The mechanisms of carrier transport, the formation of low-frequency noise, and the dependences of the rates of radiative and nonradiative recombination at room and nitrogen temperatures are considered.
Synchrotron radiation photoemission study of the electronic structure of the ultrathin K/AlN interface
Authors: Benemanskaya G.V. , Timoshnev S.N. , Iluridze G.N. , Minashvili T.A.
Published: April 2022

The electronic structure of the clean AlN surface and the ultrathin K/AlN interface has been studied in situ by synchrotron-based photoelectron spectroscopy using the photon energies in the range of 100-650 eV. The effect of K adsorption was studied. Changes in the valence band and in the Al 2p, N 1s, and K 3p core levels spectra have been investigated using K submonolayer deposition. Modification of the surface electronic structure of the AlN caused by K adsorption is found to originate from the local interaction of N surface atoms and K adatoms. As a results the suppression of intrinsic surface state and appearance of a new induced state are observed. It was found the K-induced electron redistribution effect that causes the positive energy shift of N 1s surface peak and increasing N-ionicity. Keywords: III-nitrides, electronic structure, surface states, metal-III-nitride interfaces, photoelectron spectroscopy.
Эффект "стабилизации" кислородного содержания в пленках La-=SUB=-0.8-=/SUB=-Sr-=SUB=-0.2-=/SUB=-MnO-=SUB=-3-delta-=/SUB=- при термообработке на воздухе
Authors: Николаенко Ю.М. , Эфрос Н.Б. , Федюк Д.О. , Решидова И.Ю.
Published: April 2022

In a series of epitaxial La0.8Sr0.2MnO3- films 12–75 nm thick on NdGaO3 substrates, the variation in the oxygen content during heat treatment in air at temperatures of 873–1073 K was quantitatively studied. Experimental and calculated time dependences of the change in the oxygen content in films with taking into account the effect of inhomogeneous diffusion of oxygen over the thickness of the films, allowing to make the optimal choice of temperature and duration of the heat treatment procedure. In films 25–75 nm thick, the effect of “stabilization” of the oxygen content is observed, which indicates the presence of an energy barrier that prevents the incorporation of an excess oxygen atom into the surface layer of the film under optimal conditions of heat treatment.
Влияние модификаторов SrTiO-=SUB=-3-=/SUB=-, KTaO-=SUB=-3-=/SUB=- и LiTaO-=SUB=-3-=/SUB=- на диэлектрические свойства керамики Ca-=SUB=-0.3-=/SUB=-Ba-=SUB=-0.7-=/SUB=-Nb-=SUB=-2-=/SUB=-O-=SUB=-6-=/SUB=-
Authors: Малышкина О.В. , Гусева О.С. , Митченко А.С. , Кислова И.Л.
Published: April 2022

Using the method of solid-phase synthesis, we obtained ceramic samples with a structure like tetragonal tungsten bronzes, pure Ca0.3Ba0.7Nb2O6 (CBN30) and with modifying additives SrTiO3, KTaO3, or LiTaO3. The dispersion of the permittivity in the frequency range from 1 Hz to 10 MHz, the temperature dependences of the permittivity (in the given frequency range) and the pyroelectric coefficient are studied. It is shown that if the introduction of the LiTaO3 impurity into the composition of CBN30 destabilizes the dielectric characteristics at frequencies above 100 kHz, then the SrTiO3 impurity increases both the permittivity and the pyroelectric coefficient, significantly reducing dielectric losses at low (1 – 10 Hz) frequencies. At the same time, both of these impurities (SrTiO3 and LiTaO3) lead to sample depolarization during heating above 150°C, while the KTaO3 impurity, which slightly increases the permittivity and pyroelectric coefficient, does not affect the stability of the polarized state during heating up to higher temperatures.
Точечные дефекты висмута в кристаллах TlInTe-=SUB=-2-=/SUB=-, электрофизические и диэлектрические свойства твердых растворов
Authors: Наджафов А.И. , Мадатов Р.С. , Халилова К.Г. , Искендерова Г.М.
Published: April 2022

In this work, to determine the solubility of bismuth in TlInTe2 crystals by the methods of physicochemical analysis, we studied the phase diagram of TlInTe2 - Bi in the concentration range of 0-10 at.% Bi and studied the electrical and dielectric properties of (TlInTe2)1-x Bix solid solutions. Analyzing the obtained experimental data, we assume that bismuth atoms, penetrating into the TlInTe2 lattice, form interstitial solid solutions, occupying octahedral voids between thallium atoms in the crystallographic direction 001 (z = 0.5).
The influence of bismuth impurities on the dielectric properties of TlInTe2 crystals is also observed, while forming barriers to the movement of thallium ions, bismuth impurities increase the temperature of the phase transition to the ion-conductive phase (Ti): in the crystallographic direction 001-69 K, and in the direction 110-87 K.
Люминесценция тонких пленок Hf-=SUB=-x-=/SUB=-Zr-=SUB=-1-x-=/SUB=-O-=SUB=-2-=/SUB=- при возбуждении синхротронным излучением вакуумного ультрафиолетового диапазона
Authors: Пустоваров В.А. , Гриценко В.А. , Исламов Д.Р.
Published: April 2022

Using the methods of low-temperature luminescence spectroscopy and vacuum ultraviolet synchrotron radiation (MAX IV synchrotron, Lund, Sweden), charge transfer processes and the nature of charge carrier traps responsible for leakage currents in nanometer dielectric films of hafnium-zirconium-oxygen solid solutions on silicon substrate, as well as in films doped with La-ions and annealed in argon atmosphere. The photoluminescence spectra, photoluminescence excitation spectra of the 2.7 eV emission band and previous simulation data within the framework of density functional theory confirm the presence of an oxygen vacancy in the studied films. Based on the study of competing channels for the relaxation of electronic excitations due to the radiative decay of self-trapped excitons (4.35 eV emission band) and the luminescence of defects (2.7 and 3.5 eV emission bands), a conclusion was made about the efficiency of transport and capture of excitons and separate charge carriers in films with varying degrees of defectiveness and films doped with lanthanum. The obtained data confirm the conclusion that oxygen vacancies are traps responsible for leakage currents in the films under study.
Длинноволновый край фундаментального поглощения кристаллов боратов лития LiB-=SUB=-3-=/SUB=-O-=SUB=-5-=/SUB=- и Li-=SUB=-2-=/SUB=-B-=SUB=-4-=/SUB=-O-=SUB=-7-=/SUB=-
Authors: Огородников И.Н.
Published: April 2022

We have carried out an experimental study of the VUV edge of the optical host absorption of lithium borate crystals LiB3O5 (LBO) and Li2B4O7 (LTB). The transmission (T = 293 K) and absorption (T = 80, 293 K) spectra are studied, the short-wavelength boundary of the transparency band (cutoff wavelength) and the energy position of the edge are determined. fundamental absorption at which the absorption coefficient is k = 50 cm-1. The transmission (T = 293 K) and absorption (T = 80, 293 K) spectra were studied, the short-wavelength edge of the transparency band (cutoff wavelength) and the energy position of the edge fundamental absorption at which the absorption coefficient k = 50 cm-1 were determined. The absorption edge temperature shift coefficient −(3–4.7)·10-4 eV/K was determined. The dependence of the absorption edge parameters of oriented LBO ⊥ Y and LBO ⊥ X crystals has been studied. Based on low-temperature reflection spectra (T = 10 K, θ = 17◦, E = 4–32 eV) the Kramers – Kronig method was used to calculate the spectra of optical constants: refractive index (n) and absorption index (k), real (ε1) and imaginary (ε2) parts of the complex permittivity, as well as the absorption coefficient μ. The lowest energy peak, due to electronic transitions from the top of the valence band to the states of the bottom of the conduction band, was studied in the ε2(E) spectrum, the thresholds for interband transitions were determined (Eg at T = 10 K): 8.5–8.6 eV (LBO ⊥ Y), 8.6–8.7 eV (LBO ⊥ X) and 8.8–8.9 eV (LTB). The origin of the fundamental absorption edge of lithium borates is discussed.
Оптическая модуляция антистоксовой фотолюминесценции соединения Y-=SUB=-2-=/SUB=-O-=SUB=-2-=/SUB=-S : Er
Authors: Грузинцев А.Н.
Published: April 2022

The luminescence and excitation spectra of visible photoluminescence of Y2O2S:Er ceramics (1 at.%) at different optical pumping have been studied. It is shown that the anti-Stokes luminescence of single crystals doped with erbium has a high intensity when pumping the metastable state 4I 13/2 of impurities. The resonant wavelengths of IR photons for two-photon excitation of the visible glow Y2O2S:Er are determined. A method of photooptical modulation of anti-Stokes luminescence has been developed, which makes it possible to determine the nature of the corresponding electronic transitions inside the excited glow centers.
Компьютерное моделирование фазовых переходов в низкоразмерных моделях Поттса
Authors: Муртазаев А.К. , Бабаев А.Б. , Магомедов М.А.
Published: April 2022

The Monte Carlo method is used to study phase transitions in the two-dimensional Potts model with the number of states spin q = 3 on square and hexagonal lattices. Considered systems with linear dimensions
L × L = N, L = 21 ÷ 102. The obtained numerical data indicate that in the considered
In the Potts model, a second-order phase transition is observed in accordance with the analytical theory.
The Binder cumulants method of the fourth order determines the values ​​of the critical points of the Potts model on different lattices.
Электрон-фононное взаимодействие в адсорбционной модели поверхностного димера
Authors: Давыдов С.Ю. , Посредник О.В.
Published: April 2022

In the scope of the model of surface dimer, formed by the adsorbed atom and below lying substrate surface atom, the problem on the electron-phonon interaction effect on the charge transfer in adsorbed system is considered. The case of adsorption on metal is examined thor-oughly.
Особенности низкотемпературной проводимости пленок металлоорганических перовскитов при введении в них частиц оксида графена
Authors: Овезов М.К. , Алешин П.А. , Алешин А.Н.
Published: April 2022

The influence of the introduction of graphene oxide (GO) particles on the low-temperature conductivity of composite films based on organometallic perovskites CH3NH3PbBr3 with GO particles with a concentration of 0–5 wt % has been studied. It has been established that the introduction of GO particles into ITO/CH3NH3PbBr3:GO/ITO/glass films manifests itself in a decrease in the activation energy of the temperature dependence of the conductance. A sharp increase by 5–6 orders of magnitude of the resistance of the films at temperatures below 150 K was found. It is assumed that in the studied CH3NH3PbBr3:GO systems at T>150 K, the hopping mechanism of transport predominates, associated with the capture and accumulation of charge carriers in GO particles, and the increase in resistance at T<150 K may be due to the structural phase transition characteristic of organometallic perovskites in this temperature range.
Restoration of Reservoir Caprock: Long-Term Wellbore Sealing and Abandonment through Zeolite Enhanced Cement.
Authors:   Hydraulic Barrier Materials and Geomimicry Labs, Oklahoma State University, 420, Engineering North & ATRC 126, 127 &130, Stillwater, Oklahoma, USA, Vissa Sai Vamsi Krishna , Radonjic Mileva ,   Hydraulic Barrier Materials and Geomimicry Labs, Oklahoma State University, 420, Engineering North & ATRC 126, 127 &130, Stillwater, Oklahoma, USA
Published: April 2022

Oil and gas wellbores that are drilled into the earth’s crust need to be plugged and abandoned, to restore the geological seals once they are no longer producing. The main aim of Plugging and abandonment (P&A) is to ensure that there is no leakage of hydrocarbons into the environment. Since offshore P&A is challenging due to subsurface temperature and pressure conditions, testing zeolite as an additive for improvement of cement properties is an intriguing research topic. This initial research aims to establish the chemical properties of zeolite when added to cement to hypothesize the mechanism of cement property enhancement. This work consists of the initial results in which the microstructural characterization of a naturally obtained zeolite ferrierite (FER) was done to compare it with the existing observations from the literature. Ferrierite was observed to have a needle like orthorhombic crystal structures and spherical crystal aggregates. The chemical composition was confirmed through EDS studies as it is made up of aluminum silicate crystals and proof was shown that the zeolites maintained chemical stability in the cement matrix even after hydration. Morphological characterization also showed features that indicated possible self-healing in commercial zeolite cement formulations used for geothermal wells, which was studied as a reference. The phase stability was indicated by XRD studies with ferrierite peaks observed at 2θ values of 25.195 and 25.5204 and it was differentiated in comparison to plain Class-H cement which did not have those peaks. A preliminary strength testing had also shown an improvement in 5% FER added Class-H cement in comparison to 15% and 30% FER added Class-H cement formulations which is promising for further studies.
4D Printed Shape Memory Polymers: Morphology and Fabrication of a Functional Antenna
Authors:   Engineering Department, Youngstown State University, OH, 44555, USA, Cersoli Trenton , Barnawi Muneer ,   Engineering Department, Youngstown State University, OH, 44555, USA, Johnson Kerry ,   Engineering Department, Youngstown State University, OH, 44555, USA, Burden Edward ,   Engineering Department, Youngstown State University, OH, 44555, USA, Li Frank ,   Engineering Department, Youngstown State University, OH, 44555, USA, MacDonald Eric ,   Mechanical Engineering, The University of Texas at El Paso, TX, 79968, USA, Cortes Pedro ,   Engineering Department, Youngstown State University, OH, 44555, USA
Published: April 2022

Shape memory polymers (SMPs) are smart materials that can respond to certain thermal, chemical or electrical stimuli by inducing a structural conformation change into a temporary shape. In this work, a 3D printing process based on a Vat Photo-polymerization of a shape memory polymer (SMP) was investigated to produce customized smart and complex morphable antennas. The mechanical and material properties were examined through a tensile, flexural and rheological testing for different polymer mixture ratios. It was observed that the combination of 20% of an elastomeric resin in a thermoset UV system yields the highest shape recovery performance. The fabrication process of the antenna was based on the incorporation of a conductive material. The approach involved the inclusion of a thin copper electroplating technique. The radiofrequency performance of the fabricated antenna was examined by a vector network analyzer (VNA) and it was observed that a thermal stimulus was capable of inducing a conformal shape on the antenna, resulting in a multi-radio frequency morphing system. The antenna performance was simulated in Ansys HFSS.