bluuebunny/crossref_metadata_2025 huggingface dataset:
Utilização dos serviços públicos de saúde especializados por pessoas idosas no sul do Brasil
Authors: Lütz Karen Chisini Coutinho , Bierhals Carla Cristiane Becker Kottwitz , Rosset Idiane , Paskulin Lisiane Manganelli Girardi
Published: February 2023

Resumo Objetivo Analisar a utilização dos serviços públicos de saúde especializados por idosos de acordo com o sexo e grupo etário no município de Porto Alegre. Métodos Estudo transversal com dados secundários dos sistemas de consulta ambulatorial e de internação do município. Utilizaram-se todos os registros de 2019, sendo aplicado o teste qui-quadrado de Pearson. Resultados No total, 64.888 idosos buscaram serviços especializados, gerando 113.694 atendimentos (82,8% atendimentos ambulatoriais e 17,2% internações). Verificou-se que 74,7% dos idosos foram referenciados pela atenção primária para atendimento especializado, com maiores percentuais de idosos jovens e mulheres (p<0,001). Já homens e idosos com 80 anos ou mais foram encaminhados com maior frequência para atendimento a partir de hospitais e pronto atendimentos (p<0,001). Mulheres e idosos entre 60 e 79 anos utilizaram em maior proporção os centros ambulatoriais, fisioterapia, centros de reabilitação, odontologia e saúde mental (p<0,001). Os principais motivos de utilização dos serviços especializados foram doenças do aparelho circulatório, sendo mais expressivo entre idosos com 80 anos ou mais e homens (p<0,001). As doenças osteomusculares (22,5%) foram os principais motivos de consultas ambulatoriais e, nas internações de urgência, as doenças do aparelho circulatório (37,9%). Idosos com histórico de consultas ambulatoriais tiveram menos internações hospitalares (p<0,001). Conclusão Destaca-se a necessidade de ações articuladas dos serviços de saúde priorizando a população masculina e longeva, enfocando a prevenção/controle de doenças crônicas não transmissíveis e as vulnerabilidades dessa etapa de vida.
Relationship between two-phase flow in bottom outlet and air-core vortices at intake
Authors: Kabiri-Samani Abdorreza , Jafarinasab Nooshin , Khozani Zohreh Sheikh
Published: February 2023

Model experiments were conducted on the hydraulic characteristics of air-water two-phase flow inside the bottom outlet of shaft spillways as a result of natural air suction from air-core vortices at the pipe intake. Experiments were performed in a cylindrical reservoir 2 m in diameter and 1 m high, under a swirling flow around the intake, investigating the most severe two-phase flow regimes. Three different vertical pipe intakes, attached to the floor of the reservoir at its centre, were examined for different flow discharges, establishing different vortex types. Results indicate that the void fraction decreases by changing the type of swirling flow. For a constant submergence depth, reducing the intake pipe diameter or increasing its height led to an increase in void fraction and two-phase slug flow wave velocity, length and frequency. However, by the increase in Kolf number, the frequency of slug waves reduced and the two-phase flow pressure inside the bottom outlet was increased. The relationships between two-phase flow hydraulic characteristics and regimes inside the bottom outlet and types of vortices at the intakes will be of interest to both scientific research and design engineers, to increase the efficiency and safety of pressurised waterway systems.
Anatomy and foliar architecture of two Mexican species of Ternstroemia Mutis ex L.f. (Pentaphylacaceae)
Authors: Luna-Vega Isolda , García-Gómez Iván , Alcántara-Ayala Othón , Rodríguez-Ramírez Ernesto C. , Terrazas Teresa
Published: February 2023

Background: Many Mexican Ternstroemia species mainly inhabit the tropical montane cloud forest. These species have been misidentified in herbaria due to their morphological resemblance. Question: Are there foliar anatomical and micromorphological characters with diagnostic value that allow discriminating between the Mexican species of Ternstroemia? Study species: Ternstroemia sylvatica Schltdl. & Cham., and T. lineata DC. subsp. lineata (Pentaphylacaceae Engl.), 2018-2019. Study site and date: Tropical montane cloud forests at the Trans-Mexican Volcanic Belt and Sierra Madre Oriental. Methods: Botanical specimens were collected and removed from herbarium sheets. The leaves were prepared through cleared, dehydration and paraffin inclusion techniques to observe and describe them. Results: The Ternstroemia species showed specific features of plants in humid environments, such as thin cuticle, mesophyll with scarce parenchyma palisade, and abundant intercellular spaces in the spongy parenchyma, and specific pigments that help to capture light and serve as protection. The species share a festooned broquidodromous venation pattern, anomocytic stomata, and closed collateral vascular bundle surrounded by perivascular fibers. Both species are differentiated by leaf shape, abundance of collenchyma layers, lenght of palisade parenchyma, and number of stomata per square millimeter on the abaxial surface. Conclusions: We support and validate some features recorded for Ternstroemia species and reject some previous generalizations made worldwide to the genus. This research is the first attempt to study anatomy, architecture, and foliar micromorphology of Mexican Pentaphylacaceae.
Elastic damage characterization of an ilmenite smelter freeze lining
Authors: Mabentsela A.
Published: February 2023

A furnace freeze lining is necessary for safety and economic reasons in several smelting operations. The integrity of the freeze lining is put at risk by furnace power imbalances. Although numerous models have been derived to model the growth and depletion of the freeze lining due to power imbalances, no model exists for thermomechanical damage to the freeze lining. This study provides an initial pathway for modelling thermomechanical damage to the freeze lining in an ilmenite smelting furnace using information from the literature and experimental work. A methodology under the framework of continuum damage mechanics is proposed to model mechanical damage to the freeze lining due to phase changes, thermophysical changes, and constrained thermal expansion. Drill cores of solidified slag ingots were used to represent the freeze lining. The modified power law proved to be the best predictor of the softening response of the drill cores. Damage driving parameters were extracted from the raw data, and governing equations of the parameters with respect to temperature were derived for use in a finite element method (FEM) code.
Hand-held XRF sorting of spent refractory bricks to aid recycling
Authors: Mabasa N.P. , Naudé N. , Garbers-Craig A.M.
Published: February 2023

An improved methodology is presented for assessing the economic feasibility and effectiveness of recycling MgO-C and Al2CO3-MgO-C refractory bricks, which are widely used in the steelmaking industry. Since approximately 28 Mt of refractory bricks are discarded each year, it is logical to recycle them. When furnaces and ladles are relined, the spent refractory bricks become mixed up, and need to be sorted before recycling. This study examined the use of a hand-held X-ray fluorescence analyser (HH-XRF) to distinguish between spent oxide-based and oxide-carbon-based refractory materials, with special emphasis on spent MgO-C (MC) and Al2O3-MgO-C (AMC) bricks. HH-XRF analysis was conducted on 18 oxide-carbon refractory bricks as well as on MgO-chromite and bauxite-based refractories. X-ray diffraction, reflected light optical microscopy, and scanning electron microscopy with energy dispersive spectroscopy were used to characterize the MgO-C and Al2O3-MgO-C bricks to confirm the accuracy of the HH-XRF analyses. This study also underlined the importance of calibrating the HH-XRF analyser for the refractory bricks to be sorted. The HH-XRF was successful in distinguishing between the different oxide-carbon-based refractory bricks both before and after cleaning. This result is important as it proves that HH-XRF provides a method whereby spent MC and AMC bricks can be sorted quickly and reliably.
Narrativas de pandemia en Chile: noticias y seminalidad en Twitter y Facebook
Authors: Miranda Bustamante María de los Angeles
Published: February 2023

El inicio de la pandemia volcó a los usuarios chilenos hacia los medios de comunicación y sobre todoa las redes sociales digitales, en busca de información para enfrentar al miedo y a la angustia. Conside-rando que los medios digitales son la principal fuente de noticias en ese país, resulta relevante conocerlas narrativas que los periodistas desplegaron para relatar las novedades del entorno social durante laprimera etapa de la emergencia sanitaria. Por eso, este estudio se propuso analizar y comparar las estra-tegias discursivas utilizadas en Facebook y Twitter por 17 medios de comunicación chilenos para narrarla pandemia, y su asociación con la seminalidad, es decir, con la capacidad de estas publicaciones paraprovocar las interacciones discursivas de los usuarios. Utilizando una metodología cuantitativa, se apli-có un análisis de discurso para caracterizar las narrativas de todas las publicaciones sobre la pandemiadurante marzo y abril de 2020, con una muestra total de 6525 noticias. Además, se realizó un análisisde frecuencia para calcular los frentes noticiosos y los recursos no textuales empleados. Los resultadossugieren una uniformidad narrativa en las estrategias discursivas implementadas en ambas plataformas,que ignoran la disparidad de audiencias y usos entre ellas. Esto se evidencia al revisar la asociación conla seminalidad, donde las marcas lingüísticas, las áreas temáticas y los recursos no textuales implemen-tados tienden a ser precisamente los que atrajeron menos interacciones
Investigation of body posture problems experienced in baglama teaching process
Authors: İNANICI Murat Kamil
Published: February 2023

This research was conducted to determine the bodily setting problems experienced during the bağlama teaching process and to reveal the search for solutions to these problems. The research was conducted in accordance with the case study design, which is one of the qualitative research designs. The participants of the study consisted of 42 bağlama instrument teachers, 88.1% of whom were male (n=37) and 11.9% of whom were female (n=5). In the study, "open and closed-ended questionnaire form" prepared by the researcher was used as a data collection tool. The data obtained were analyzed according to thematic analysis technique. The research data were analyzed under five themes. These themes are; "Sitting mistakes and solution suggestions", "Instrument Positioning Mistakes and Solution Suggestions", "Right Hand Positioning Mistakes and Solution Suggestions", "Left Hand Positioning Mistakes and Solution Suggestions" and "Use of Apparatus for bodily setting". As a result of the research, it was determined that students experienced bodily setting problems during the baglama vocalization process and that teachers made various practices to overcome these problems.
Animal Representations in Nigerian Art: A Review of Roles, Significance and Aesthetics
Authors: OYİNLOYE Michael Abiodun , ADELOYE Adebayo Abiodun , ODEWOLE Peter Oluwagbenga , AFOLABİ Benjamin Eni-itan F
Published: February 2023

The paper explores literature, as well as Nigeria’s national museum’s content on the use of animal forms as elements and subjects in traditional Nigerian art from prehistoric to the contemporary time. It identifies the roles, and significance of animals to mankind, as well as appraises their aesthetic value in Visual Art. The paper dwells on Nigerian Indigenous tales associated with animals associated with certain Nigerian cultures such as snakes, lizards and crocodiles among others. Other data was sourced from books, journal articles, pictorial images online, as well as museum’s documentations online. Data was qualitatively analysed using art historian methods to descriptively present the data. The study identifies animals as important companions of man; most animals serve as food sources, while some typifies human characters. The study concluded that, animal representations in art were born out of love and regard for them. Nevertheless, they have significantly contributed to the visual aesthetics of the past and present cultures, and therefore need to be preserved for future generations to learn from and also to adopt them for art pieces.
Pemanfaatan Webinar Sebagai Alternatif Digitalisasi Informasi dalam Seminar Kurikulum
Authors: Prehanto Adi , Gelar Rangga , Masum Nuraly
Published: February 2023

Tujuan penelitian ini adalah mengetahui model Webinar (Website Seminar) yang sesuai dengan kebutuhan dan minat peserta. Penelitian ini menggunakan metode penelitian kualitatif deskriptif, dimana data didapatkan melalui studi pendahuluan Pustaka dan survey peserta seminar online kegiatan E-guru, yang terdiri dari pengajar, wakil kepala bidang kurikulum, praktisi Pendidikan, mahasiswa, dan pengelola sekolah. Survey berisi item preferensi para peserta dalam mengikuti suatu webinar. Hasil penelitian didapatkan bahwa para peserta antusias mengikuti suatu webinar berdasarkan keahlian narasumber (kebidangan), topik yang relevan, sertifikat yang diberikan, dan cara pemateri menampilkan presentasi dengan interaktif dan jelas. Dengan demikian, desain suatu webinar perlu dirancang dengan baik, agar pesan atau informasi yang disampaikan jelas, serta peserta memiliki motivasi yang tinggi dalam mengikuti suatu Website Seminar (WEBINAR)
PENGARUH DISIPLIN KERJA TERHADAP KINERJA PEGAWAI PT TELKOM AKSES DIVISI KONSTRUKSI JABAR TENGAH
Authors: Ismail Adi Putra Roby , Prasetyo Yogi
Published: February 2023

Penelitian ini adalah untuk mengetahui pengaruh disiplin kerja terhadap kinerja pegawai PT Telkom Akses Regional Jawa Barat. Adapun variabel yang digunakan dalam penelitian ini adalah variabel disiplin kerja yang terdiri dari indikator kehadiran, kewaspadaan, ketaan pada standar kerja, ketaatan ada peraturan kerja, dan etika bekerja. Sedangkan variabel kinerja pegawai terdiri dari kuantitas, kualitas, dan ketepatan waktu. Penelitian ini menggunakan metode kuantitatif eksplanatif. Teknik pengumpulan data menggunakan kuesioner yang dibagikan kepada 33 responden pegawai PT Telkom Akses Divisi Konstruksi Jabar Tengah, serta melakukan studi kepustakaan. Data dianalisis dengan metode analisis koefisien korelasi, analisis regresi linier sederhana dan analisis koefisien determinasi. Berdasarkan hasil penelitian, penulis menyarankan untuk meningkatkan kehadiran pegawai, hal itu membutuhkan peningkatan kesadaran pegawai, lalu menganalisa daftar kehadiran dan memberikan sanksi terhadap pelanggaran. Meningkatkan ketaatan karyawan pada standar kerja dengan proses sosialiasi, melibatkan atasan untuk mengawasi dan membina lalu menggunakan media yang tepat untuk menularkan ketaatan. Untuk kualitas kerja, perusahaan dapat meningkatkan kualitas sumber daya manusia, membuat kebijakan yang tepat agar karyawan memiliki komitmen bekerja, dan melakukan evaluasi terhadap hasil kerja. Untuk meningkatkan ketepatan waktu, perusahaan dapat memberikan reward dan punishment agar memicu keinginan karyawan untuk mendapatkan kompensasi tambahan dan memicu ketidak inginan karyawan untuk mendapatkan sanksi jika melakukan keterlambatan kerja.
PENERAPAN MODEL GAMIFIKASI PADA SISTEM PEMBELAJARAN DARING (SPADA) UPI DALAM UPAYA MENINGKATKAN MOTIVASI BELAJAR MAHASISWA
Authors: Gelar Guntara Rangga
Published: February 2023

Motivasi merupakan syarat mutlak dalam belajar; seorang peserta didik yang belajar tanpa motivasi (atau kurang motivasi) tidak akan berhasil dengan maksimal. Situasi dan kondisi pandemi COVID-19 saat ini, membuat proses pembelajaran harus dilakukan di rumah secara jarak jauh. Hal ini tentu akan menurunkan semangat dan motivasi belajar. Permasalahan yang sama terjadi pada para mahasiswa UPI. Sebagai sampel untuk penelitian ini, telah dilakukan survey berupa penyebaran kuesioner kepada para mahasiswa Program Studi Bisnis Digital UPI di Kampus Daerah Tasikmalaya. Hasil kuesioner yang diberikan kepada 50 responden, 45 responden menyatakan setuju apabila semangat belajar menjadi menurun selama pembelajaran online saat ini. UPI melalui platform digital Sistem Pembelajaran Daring (SPADA) berupaya untuk menciptakan lingkungan belajar yang menyenagkan sehingga mahasiswa tetap memiliki motivasi untuk belajar. Dengan adanya model Gamifikasi pada proses pembelajaran, diharapkan dapat meningkatkan motivasi belajar mahasiswa. Memanfaatkan ketertarikan pada game atau permainan yang tidak mengenal usia dan berbagai keunggulan game, maka penerapan unsur game dalam bentuk gamifikasi pada Sistem Pembelajaran Dalam Jaringan (SPADA) UPI merupakan sebuah upaya yang berhasil dalam meningkatkan motivasi belajar mahasiswa selama pandemi ini.
MITOS ANGKAPIO MEDIUM INTERAKSI ANTARA ALAM DAN MANUSIA MENURUT KEPERCAYAAN MURUT PALUAN
Authors: Karimon Jacquelina , Alezender Steven
Published: February 2023

Interaksi antara alam dan manusia adalah unik dan rumit. Kelakuan dan bunyi merupakan dua isyarat yang kompleks yang dapat ditafsir oleh kearifan sesebuah masyarkat. Dalam masyarakat Murut Paluan khususnya, mitos angkapio memaparkan kepercayaan terhadap hubungan manusia dengan alam. Makalah ini membincangkan mengenai persekitaran alam yang berinteraksi dengan manusia dan menerangkan tentang kejadian yang telah berlaku dan bakal berlaku. Maklumat mengenai peristiwa sedih dan gembira yang bakal dihadapi hanya difahami oleh kelompok yang ahli dalam mentafsirnya. Perkhabaran mengenai maklumat yang disampaikan secara visual dan bunyi membuatkan masyarakat Murut Paluan lebih bersedia menghadapi peristiwa buruk yang akan menimpa mereka. Interaksi alam kepada manusia berperanan penting dalam mengimbangi perlakuan mereka agar tidak melanggar hukum alam. Oleh itu, manusia akan lebih berhati-hati agar dapat menerima interaksi yang membawa petanda yang baik selaras dengan kemahuan manusia itu sendiri. Kajian ini dijalankan secara lapangan dengan sokongan kajian ilmiah. Makalah ini akan mengetengahkan konsep interaksi masyarakat Murut Paluan yang menjalinkan hubungan akrab dengan alam sekeliling mereka. Kehidupan mereka yang fleksibel dengan alam telah menunjukkan satu sistem interaksi yang dipercayai menghindarkan mereka daripada malapetaka. Tinjauan ini seterusnya akan memaparkan jiwa “kemurutan” yang peka terhadap sekeliling mereka.
SOCIAL ENTERPRISES ENTREPRENEUR AND SOCIAL IMPACTS TO COMMUNITY: A REVIEW PAPER
Authors: Palil Mohd Rizal , Abu Hassan Norul Syuhada , Jamaluddin Nur Aaina Aqilah , Ismail Ida Suriya , Samsuddin Mas Ervina
Published: February 2023

Numerous prior studies claimed that social enterprises had a beneficial effect (social impact) on addressing society's social problems. However, there is little evidence to support that statement. How well is this enterprise able to give an impact on solving social problems? Does it have any indicators that can prove the validity of its social impact? Therefore, this study aims to explore the literature review on social enterprise and their social impact, as well as to identify a few measurements to assess the social impact. Hence, the writing of this article was conducted based on reviewing the published literature including articles and journals which are relevant to the topic that can be accessed through online databases. Scopus, Science Direct and Google Scholar have been used for searching the articles needed. The search terms include "social enterprise" OR "social business" OR "social entrepreneurship" AND "Social impact" OR "measuring impact" OR "social impact measurement". This conceptual paper was motivated to get a deeper understanding of the social impact measurement employed by social enterprises. From the discussion, we have clearly defined the definition of social impact from different perspectives, including the importance of measuring the social impact among social enterprises has also been discussed briefly. Reviewed articles revealed that there is a wide range of methods for measuring social impact but in this article, we are focusing on three approaches only there are: balanced scorecard (BSC), social return on investment (SROI), and cost-benefit analysis (CBA) in this paper. This study summarises that measuring the social impact is becoming an essential determination for social enterprises as the key indicators of their performance to the communities or to the potential investors or funders. The study also suggests recommending further study of the social impact measurements that need to be discussed in depth and detail. This study's hope can attract more academicians to stimulate more research on this topic, specifically in measuring methods from Malaysia's perspective. The implication of this study forms a clear understanding of the social impact and a few of the measurements that can be used in measuring the impact of social enterprise.
PENGARUH MEDIA SOSIAL TERHADAP PERUBAHAN TINGKAH LAKU KECELARUAN PEMAKANAN DAN IMEJ BADAN SEBELUM DAN SEWAKTU PENULARAN WABAK COVID-19 TERHADAP PELAJAR WANITA PENGAJIAN TINGGI DI SELANGOR
Authors: Noorazman Nor Aisyah , Abdullah Hilwa
Published: February 2023

Media sosial adalah salah satu medium komunikasi yang paling penting dalam kehidupan seseorang. Apabila berlakunya penularan wabak Covid-19, kebergantungan kepada media sosial menjadi tinggi terutamanya bagi menjalani kehidupan seharian. Pengenalan kepada kawalan pergerakan dan perintah berkurung menjadikan media sosial sebagai medium perhubungan utama antara seorang individu dengan individu yang lain. Oleh yang demikian, kajian ini dijalankan bagi melihat perkaitan antara media sosial dengan ketidakpuasan imej badan dan perubahan tingkah laku kecelaruan pemakanan sebelum dan sewaktu penularan wabak Covid-19 terutamanya dalam kalangan pelajar wanita institusi pengajian tinggi di Selangor. Kajian dijalankan melibatkan 172 orang responden wanita yang berumur 19 hingga 24 tahun dan sedang belajar di Institusi Pengajian Tinggi Malaysia di Selangor. Metod kajian yang digunakan adalah menggunakan jenis persampelan bukan kebarangkalian dengan menggunakan kaedah persampelan mudah dan kaedah bola salji bagi mengedarkan soal selidik secara atas talian. Hasil kajian mendapati bahawa hampir tiada hubungan yang signifikan bagi media sosial dan ketidakpuasan imej badan dengan media sosial dan perubahan tingkah laku kecelaruan pemakanan. Perbandingan data primier dan data sekunder juga mempunyai sedikit perbezaan dapat kajian iaitu hampir tiada hubungan signifikan bagi data primier dan hubungan signifikan yang lemah bagi data sekunder. Dapatan kajian ini diharap dapat membantu memberi kesedaran dan membuka mata masyarakat tentang pengaruh media sosial terhadap ketidakpuasan imej badan dan perubahan gaya pemakanan jika ia tidak dibendung.
Effect of Solidity on Power Performance of Vertical Axis Wind Turbine
Authors:   Institut Penyelidikan Tenaga Suria (SERI), Universiti Kebangsaan Malaysia, Malaysia, Ramlee Muhamad Fadhli , Fazlizan Ahmad ,   Institut Penyelidikan Tenaga Suria (SERI), Universiti Kebangsaan Malaysia, Malaysia, Mat Sohif ,   Institut Penyelidikan Tenaga Suria (SERI), Universiti Kebangsaan Malaysia, Malaysia
Published: February 2023

Wind energy is one of the potential renewable energy sources and a great alternative to replace conventional power generation using coal and fossil fuel that heavily contribute to climate change. Recently, small scale vertical axis wind turbine (VAWT) has received growing interest as wind energy converter due to its suitability to be used in low wind speed area. Hence, this paper is intended to evaluate numerically the effect of solidity, by varying turbine diameter, on power performance of VAWT using computational fluid dynamic (CFD) technology. A series of two-dimensional CFD simulations was performed on a three-bladed H-type Darrieus rotor equipped with symmetrical NACA0018 blades. Performance evaluation on 3 turbine configurations with different diameter; i.e. 1.0 m, 0.6 m and 0.43 m were performed over a range of tip speed ratio, λ with an incoming velocity of 8.0 m/s. The simulation results clearly show that low solidity turbine performed better at high values of λ and has wider operating range while turbine with low solidity performed better at low λ and has better self-starting capability. The results lend substantially to our understanding of solidity effect on performance of VAWT in order to develop an ideal design of VAWT that can operate optimally in complex wind condition.
Processing and Characterization of Proton Conducting Material Based on Cerate-Zirconate Ceramics
Authors:   Physics Department, Faculty of Applied Sciences, Universiti Teknologi MARA, 02600 Arau, Perlis, Malaysia, Osman Nafisah , Mohd Affandi Nur Syafkeena ,   Proton Conducting Fuel Cell Research Group, Faculty of Applied Sciences,Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia, Hasdinor Hassan Oskar ,   Faculty of Art & Design, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
Published: February 2023

Solid electrolyte based on cerate-zirconates have been widely investigated world-wide as proton conductor for potential applications in electrochemical devices such as fuel cells, electrochemical sensors, reactors, and devices. The most conventional physical method to prepare these ceramic electrolytes is via solid-state reaction (SSR). However, chemical method or known as wet chemical method (WCM) such as a sol-gel process has become a reliable route in terms of producing high purity and homogenous ultrafine powders. Tailoring the microstructure of the ceramics electrolyte can be achieved as sol gel process produces single perovskite phase of cerate-zirconates at lower processing temperature. This lower heat treatment produces the ceramics with improved quality for instance ultra-fine and agglomerate free powders with narrow size distributions. Subsequently, the innovative procedures generates high relative density of the electrolyte with improved quality and performance. Within the scope, in this paper we summarize our recent results on the synthesis of doped Ba(Ce,Zr)O3 nanopowders by a modified sol-gel routes using metal nitrate salts as precursor.
Leonardo da Vinci and contemporary optics. Possibilities of applying the "The golden ratio" principle to optical design
Authors:   PanDao GmbH, Faehnle O. , Livshits I.L. ,   ITMO University, Tolstikova I.I. ,   ITMO University, Volkova S.L. ,   Saint-Petersburg State Marine Technical University
Published: February 2023

Optics in general is an old science. Many brilliant researches have created both theory and practice in this field. Some of their achievements are still in use and some are unjustly forgotten. In this article, we tried to rethink some points of ancient scientists to show that they had "seeds" which are still important our days. In particular, the applicability of the "golden section" from nature to the modern, computational process of optical system design was tested experimentally. The authors propose to return to the past by analyzing the solutions generated by nature itself at the stage of choosing the initial optical scheme (starting point), which will further ensure its manufacturability and optimal production cost. At the same time, the approach based on the "golden section" is only an ideal addition to the use of modern technologies. There are discussed Design principles, current challenges, possible solutions and some applications. They could be used, for example, in optical design, at the stage of starting scheme or help making decision of optical system producibility.
ACCESS TO PSYCHOSOCIAL SERVICES AT MEDICATION-ASSISTED TREATMENT SITES IS A FACTOR OF HIV PREVENTION
Authors:   International Charitable Foundation ", Meteliuk Anna ,   Alliance for Public Health",   , Kyiv, Ukraine
Published: February 2023

Ukraine is one of the leading countries in Europe in terms of HIV prevalence, with injecting drug use being one of the main drivers of HIV transmission. Medication-assisted therapies (MAT) are the most effective means of preventing HIV transmission among people who inject drugs (PWID). As of January 1, 2022, 17,043 PWID in Ukraine were receiving MAT, which constitutes about 6% of the estimated number of PWID in the country. According to the official data, 6,002 MAT patients (35.2%) live with HIV, 5,736 (95.6%) of whom receive relevant HIV treatment. MAT in Ukraine is provided on the basis of more than 240 healthcare facilities, but not all of them offer psychosocial services to their patients. The aim of this study was to examine the access of MAT patients to psychosocial services on their MAT sites as well as to assess the role of access to such services at each stage of the HIV cascade. The source of data for this study was the national registry of all MAT patients in Ukraine. Descriptive statistics and logistic regression were used for the statistical analysis. The results of the analysis showed that patients' access to psychosocial services at MAT sites significantly improves the performance of the HIV service cascade at every stage: all MAT patients living with HIV are aware of their HIV-positive status; as for the access to appropriate HIV treatment – 97% and 95% of patients who have and do not have access to psychosocial services at their MAT sites receive antiretroviral therapy, respectively; and 83% and 67%, respectively, have an undetectable level of HIV viral load. Thus, access to psychosocial services at MAT sites significantly improves the HIV cascade indicators at each stage.
ÇOK KRİTERLİ KARAR VERME YÖNTEMLERİ KULLANILARAK PSİKİYATRİ KLİNİĞİNDE TEDAVİ GÖREN HASTALARIN KISITLAMA ÖNCESİ AGRESYON BELİRTİLERİNİN DEĞERLENDİRİLMESİ
Authors: UZAN Şeyma Bozkurt , BOYACIOĞLU Nur Elçin , ENGİNKAYA Semra
Published: February 2023

Genel kliniklerden farklı olarak agresyon, psikiyatri kliniklerinde sıklıkla rastlanan bir durumdur. Agresyonun yönetilemediği durumlarda yapılan müdahaleler, hasta-çalışan güvenliğini tehdit ederek, terapötik ortamı bozmakta; çalışanların motivasyonunu ve sundukları bakımın kalitesini düşürmektedir. Bu çalışmada çok kriterli karar verme teknikleri kullanılarak, kısıtlamaya karar veren sağlık profesyonellerinin (psikiyatrist, hemşire) tedavi gören hastaların kısıtlama öncesi agresyon belirtilerinin değerlendirilmesi amaçlanmaktadır. Tanımlayıcı ve kesitsel desende olan bu çalışma, Mayıs- Temmuz 2021 tarihleri arasında, İstanbul’da ruh sağlığı alanında hizmet veren bir devlet hastanesinde çalışan 40 hemşire ve psikiyatrist ile gerçekleştirildi. Veriler Sosyo-demografik Veri Formu ve Agresyon Belirtilerini Değerlendirme Formu olmak üzere iki bölümden oluşan dijital anket kullanılarak toplanmıştır. Verilerin analizinde Analitik Hiyerarşi Prosesi Tekniği kullanılarak, kriterlerin ağırlıkları hesaplanmıştır. Tüm kriterler arasından kendine zarar verme ve çevresine zarar verme en çok önem verilen kriterler olarak belirlenmiştir. Düşme tehlikesi, konfüzyon/deliryum ve aşırı ajitasyon kriterleri eşit öneme sahip olup, kriter ağırlıklarında üçüncü sırada yer almaktadır. Bununla birlikte meslekler açısından kriterlerin öncelik sırasında belirgin bir fark bulunmamaktadır. Bu çalışma sonuçları PKY öncesinde sergilenen agresyon davranışlarından hangisinin daha önemli olduğunu; hangi kriterin gerçekte agresyon belirtisi sayılabileceğini ortaya koyması bakımından önemlidir. Çalışma sonucunda elde edilen veriler sayesinde gereksiz PKY kullanımının önüne geçileceği düşünülmektedir. Mesleğe yeni başlayan adaylar için hizmet içi eğitim programlarında verilen PKY’ye yönelik eğitimlerin planlanmasında, çalışma sonuçları kullanılabilir.
KORONA PANDEMİSİNE KARŞI BÖLGELERARASI SAĞLIK PLANLAMASINDA YENİ BİR YÖNTEM ÖNERİSİ: YAŞLILARDA BÖLGESEL YIĞILMALARIN LOKASYON KATSAYISI İLE TESPİTİ
Authors: ÇİFTÇİ Murat
Published: February 2023

Zamanla değişse de korona virüsün yaşlıları daha şiddetli etkilediği bilinmektedir. Yaşlıların bölgesel dağılımları ise dengeli değildir. Yaşlıların dengesiz bölgesel dağılımlarıyla uyumlu sağlık hizmetlerinin sunulması, korona pandemisiyle mücadelede başarıyı arttırabilir. Ancak bunun için önce bölgesel yığılmaların tespiti gerekir. Gini, Atkinson, Theil, CV gibi eşitsizlik endeksleri, sadece dengesiz dağılımın genel şiddetini gösterir. İhtiyaç duyulansa dengesiz dağılımın şiddeti değil, hangi bölgesel birimlerde ne şiddette yığılmanın olduğudur. Belki asal bileşenler analizi kullanılarak bölgesel birimlerdeki yığılmaların sıralaması yapılabilir. Ancak bu defa da şiddet tespiti yapılamamaktadır. Lokasyon katsayıları her bölgesel birim için hesaplanması durumunda, hem yığılma şiddeti tespit edilir hem de yığılma şiddetine dayalı gruplamaya gidilebilir. Çünkü lokasyon katsayısı teorisinde yığılma değerlerine göre genel kabul görmüş eşikler v ardır. Bu çalışmada da 65 yaş ve üstündeki yaşlı nüfusun, ilçe “Düzey 4” düzeyindeki yığılma şiddetleri hesaplanmıştır. Ardından şiddet eşiklerine göre toplam yaşlı sayıları tespit edilmiştir. Analizde kullanılan veriler TUİK’ten derlenen 2019 yılı ilçe nü fus istatistiklerinden alınmıştır. Elde edilen bulgular, 11,1 milyon 65 yaş ve üstündeki yaşlının %13’ünün tam yığılma olan ilçelerde, %51’inin güçlü yığılmanın olduğu ilçelerde, %28’inin yüksek bölgesel yığılmanın, %7’sinin ortalama yığılmanın, %1’ininse zayıf yığılmanın olduğu ilçelerde yaşadıkları tespit edilmiştir. Buradan anlaşılan, yaşlılar belli bölgelerde yığılmaktadır ve güçlüyüksek yığılma yaşanan ilçelerde sağlık hizmetlerinin çok daha yoğun sunulması gerekir. Bu çalışmayla hem yöntemsel hem de Anahtar Kelimeler: mevcut durumun analizini birlikte gerçekleştirme imkânı oluşmuştur.
TÜRKİYE’DE REEL FAİZLERİN NET PORTFÖY YATIRIMLAR ÜZERİNDEKİ ETKİSİ
Authors: SAVRUL Burcu KILINÇ , AKBUDAK Tahir
Published: February 2023

Ekonomik büyüme ve ekonomik kalkınmayı gerçekleştirebilmek, yoksulluk ve işsizlik sorununu ortadan kaldırarak yeni iş sahaları oluşturabilmek ve düşük işgücü fiyatlarını artırabilmek için yeterli sermayenin olmaması özellikle gelişmekte olan ülkelerde yabancı sermayeye duyulan ihtiyacı artırmıştır. Gelişmekte olan ülkeler arasında yer alan Türkiye’de yabancı sermayedarı çekmek için özellikle 1980’li yıllardan itibaren ciddi adımlar atılmıştır. 1989 sermaye hareketlerinin serbestleşmesi ile beraber Türkiye’ye yönelik yapılan yabancı yatırımların türünde de değişiklikler meydana gelmiştir. Bu tarihten önce daha çok doğrudan yatırım şeklinde gerçekleştirilen yatırımlar bu yıldan itibaren daha çok portföy yatırımları şeklinde gerçekleşmektedir. Diğer taraftan yabancı sermayedarın Türkiye’yi tercih etmesinde birden çok parametre etkili olmaktadır. Çalışmanın amacı bu parametrelerden biri olan reel faiz oranının portföy yatırımlar üzerindeki etkisini ortaya koymaktır.Bu doğrultuda 1989-2020 yılları arasını kapsayan dönemde Türkiye’de reel faizlerin net yabancı portföy yatırımlar üzerindeki kısa ve uzun dönemdeki etkisini belirlemek için ARDL sınır testi yapılmıştır. Analiz sonucunda ilgili değişkenler arasında kısa dönemde anlamlı ve negatif bir ilişkinin varlığı, uzun dönemde ise anlamlı ve pozitif bir ilişkinin varlığına ulaşılmıştır. Ayrıca analizde kontrol değişken olarak kullanılan devlet bütçe açıkları ile net portföy yatırımlar arasında negatif bir ilişki olduğu bulgulara ulaşılmıştır. Tüm bunlara ek olarak analizde Türkiye’de ekonomik krizin yaşandığı dönemlerde ciddi yabancı sermaye çıkışı olduğu gözlenmiştir.
ORTA AVRUPA VE BALTIK ÜLKELERİNDE TEMEL MAKRO EKONOMİK DEĞİŞKENLERİN İŞSİZLİK ÜZERİNDEKİ ETKİLERİ: PANEL VERİ ANALİZİ
Authors: YAĞIŞ Onur , SAVRUL Burcu KILINÇ
Published: February 2023

Çalışmada, dünya bankasında yer alan orta Avrupa ve Baltık ülkelerinde ekonomik büyüme, cari işlemler dengesi, sanayi üretimi ve gayri safi yurtiçi tasarruf gibi temel makro ekonomik değişkenlerin işsizlik üzerindeki etkileri incelenmiştir. Çalışmada 1997-2018 dönemine ait yıllık veriler kullanılmıştır. Analiz panel metodu ile gerçekleştirilmiştir. Bu yolla işsizliğin azaltılması için hangi değişkenlerin yol gösterici olacağının tespitini amaçlamaktadır. Seriler arasındaki uzun dönemli ilişkinin varlığı Westerlung Edgerton (2007) LM bootstrap testiyle incelenmiş, birden fazla kırılmayı ele alan Westerlung Edgerton (2006) multiple break ile kırılma tarihleri belirlenmiştir. Daha sonra uzun dönem katsayılarını tahmin etmek için uzun dönem regresyon katsayıları AMG 2009 yöntemi kullanılmıştır. Ekonomik büyüme, cari işlemler dengesi, sanayi üretimi ve gayri safi yurtiçi tasarruf değişkenlerinin işsizliğe etkileri incelendiğinde ekonomik büyümenin ve enflasyonun negatif, cari işlemler dengesinin pozitif istatistiki olarak anlamlı etkilerinin olduğu görülmüştür.
Features of ultrasound diagnostic syndesmotic ankle injuries in middle and older children: prospective comparative study
Authors: Dorokhin Alexandr  I. , Adrianova Anastasia  A. , Drozdov Sergey  A. , Karpovich Nikolai  I. , Malchevskii Vladimir  A.
Published: February 2023

BACKGROUND: Diagnostics and treatment of syndesmotic ankle injuries in children is one of the important problems in pediatrics. The generally accepted examination algorithms and standards developed for adult patients do not apply to children. The ligamentous apparatus in children is much more elastic, and the tibiofibular space is smaller, which significantly complicates the diagnostic search.
OBJECTIVE: This study aimed to create a diagnostic algorithm for examining middle and older children with ankle joint injuries.
MATERIALS AND METHODS: To create a diagnostic algorithm, whether the ultrasonographic stress test of external foot rotation in adult practice is relevant for patients with closed growth zones was investigated. Two open cohorts of middle and older children were formed. The first cohort included children aged 1114 years with a closed growth zone of the distal tibia, and the second cohort included children aged 1517 years with a closed growth zone. The inclusion criteria were the absence of injuries of the studied ankle joint and the correspondence of the body mass index to the age norm.
RESULTS: The variability of the tibiofibular space during the stress test of external foot rotation in children with a closing growth zone averages 3.035 mm and in children with a closed growth zone was 2.319 mm. Data indicate a high degree of elasticity of the anterior tibialperoneal ligament in children in contrast to adults in whom this structure is more rigid. In children experiencing pain, active muscle resistance makes the test of internal rotation ineffective, and excessive elasticity of the structure in the area of a healthy joint does not give a correct comparative result for the operator.
CONCLUSION: The use of a test with internal rotation for diagnosing damage to the distal tibiofibular syndesmosis in children with closing and closed growth zones is limited, and the operator must rely on other ultrasound signs of damage to this structure.
Medical simulator for the training of traumatologists: pilot work
Authors: Paramonov Timofey  A. , Markin Ilya V. , An Vladimir R. , Kushnarev Sergei  V. , Potapov Pyotr K. , Vedishchev Kirill A. , Varlamova Natalia V. , Muzafarov Artur R. , Baykiev Renat R. , Zhurbin Evgeniy A. , Otavin Denis A. , Zabirova Iraida  A.
Published: February 2023

BACKGROUND: Pelvic fractures are one of the most complex and fatal injuries because numerous large blood vessels are affected. They entail partial or complete loss of working capacity and have a high mortality rate. In medical practice, the number of pelvic fractures is fewer than that of other types of fractures, and specialists often lack practical experience and skills in the treatment. Thus, for the training, or advanced training of specialists, more serious theoretical training is required, which is unproductive without high-quality training simulators and models.
AIM: The study aimed to develop and manufacture an easy-to-use simulator that mimics human soft tissues and makes it possible to comprehensively prepare and educate specialists in the technique of installing an external fixation device for unstable pelvic fractures.
MATERIALS AND METHODS: To create the simulator, several main stages were completed: obtaining samples of the pelvic bones, making a mold for casting, and directly assembling the simulator. To obtain bone samples, computed tomography scans and magnetic resonance therapy images were used, on which a three-dimensional (3D) model of the pelvic bones was obtained. Based on this model, anatomically accurate copies of the pelvic bones were made using additive technologies. Then, a 3D digital computer model was developed, and a mold for casting the finished product was made. Bone samples were placed inside the mold, and the mold was gradually filled with a gelatinglycerin compound, which after hardening mimics human soft tissues.
RESULTS: A prototype of a medical simulator for teaching the installation of the concomitant injury kit apparatus for unstable pelvic fractures was made.
CONCLUSION: The manufactured simulator can be widely used in educating and training specialists given its sufficiently high anatomical accuracy, ease of maintenance, and good potential for mass production.
The Lived Experiences of Students with Dyslexia
Authors:   , Rybas Joan Catherine , Severino Lori
Published: February 2023

As an educator there are many elements to focus on within the classroom. One important aspect is to understand and recognize the experiences of students. Students with dyslexia face particular challenges, how they interact with the curriculum, their teacher, and their peers dramatically impacts how they navigate these challenges. Research has shown students with dyslexia tend to have a reduced self of esteem, difficulty with executive functioning, require longer processing time, and need individualized instruction. Teachers that actively seek to know their students as people and learners are able to adapt instruction to further meet the needs of the students, which will then lead to pathways of learning and positive experiences. Knowing and responding to the needs of students with dyslexia is particularly important. The research focuses on the experience of students with dyslexia. The purpose of this qualitative study was to learn about the experience of students with dyslexia. The study examined the following research questions: RQ1: How do students with dyslexia understand their learning difference? RQ2: How does dyslexia impact their school experience? How do students with dyslexia experience the roles of their teachers in their learning? How do students with dyslexia describe their experiences with reading supports outside of the regular classroom?
Academic Instructional and Assessment Strategies in the "RTI" System
Authors:   , Solecki Jean Marie , Lyttle Constance
Published: February 2023

When the Individuals with Disabilities Education Improvement Act (IDEA) was reauthorized in 2004, Response to Intervention (RTI) was introduced as a new option to diagnose students as having a Specific Learning Disability (SLD), in addition to the traditional discrepancy model. States were now permitted to choose whether to use the discrepancy model or RTI for diagnosis of a SLD. If they chose the latter, they were permitted to design their own RTI process and school districts, in turn, were permitted to customize their State's RTI process to fit their particular district's needs. Typically, RTI was designed as a three-tiered triangle that included instructional strategies and assessment strategies at each tier, increasing supports as the triangle is ascended. Once the top third tier is reached, the student would be referred for an evaluation for specialized instruction and related services for a suspected learning disability. This RTI approach to diagnose and assist students with SLD became so popular, districts began to modify and apply this diagnostic process to determine whether students with other learning difficulties might benefit from a similar targeted review of instruction. These modified RTI processes are referenced herein as "RTI." The wide variations in the various states' approaches to the traditional RTI, the districts' customized RTI processes, and this newly modified "RTI" approach resulted in inconsistencies in instructional strategies and assessment strategies identified within the three-tiered triangle and the tier-to-tier transition points between the different tier levels. This quantitative study compared strategies commonly identified within each tier by several leading "RTI" authorities and arranged them, by level, in a Summary Triangle (ST). Kindergarten through fifth-grade teachers were asked in a nationally distributed digital survey to place each strategy within the "RTI" triangle tiers, and their responses were matched to the ST tiers. Most teachers' instructional strategies choices aligned with the ST but not the assessment strategies choices. To assure students with disabilities are timely identified, evaluated, and served, recommendations are made for teacher pre-service and in-service professional development to assure instruction and assessment strategy alignment. Keywords: Response to Intervention, RTI, Assessment Strategies, Instructional Strategies.
Exploring Academic Language and the Academic Identities of Black and Latino Males in a Community College in Maryland
Authors:   , Thomas Leon C. , Hill Deanna
Published: February 2023

A growing body of research has focused on Black and Latino males in community colleges, but the research has stopped short of exploring how they experience the academic language of the community college. The purpose of this qualitative, narrative study was to explore the stories of Black and Latino males at a community college in Maryland to better understand how they think about, learn, and use academic language and how their entry into an academic discourse community influences the development of an academic literate identity. The study utilized Harris and Wood's (2016) Socio-ecological Outcomes model to explore students' identities and experiences. The following research questions guided the study: 1) What stories do Black and Latino males tell about academic language expectations at a community college in Maryland? 2) What stories do Black and Latino males tell about their own use of academic language at a community college in Maryland? 3) What stories do Black and Latino males tell about the relationship between academic language and the development of their own academic identities at a community college in Maryland? The researcher conducted semi-structured interviews with six Black and Latino males at a large community college in Maryland. The data analysis, using narrative thematic analysis, indicated that the participants found ways in which to navigate community college academic spaces by developing an academically literate identity and adopting the institution's distinctive discourse patterns. This ensured their success, even in the presence of barriers and the institution's false assumptions that students entering the community college have mastered (and are ready and willing to use) academic discourse. The researcher offers recommendations for practice to help community colleges better understand the experiences of Black and/or Latino males with the goal of transforming their systems to better enable Black and/or Latino male success. Keywords: Community College, Academic Language, Academic Literacy, Black Males, Latino Males
Sport Games in Virtual Reality (VR) Accessibility to Consumers
Authors:   , Zhou Qianbing , McHugh Michelle
Published: February 2023

Currently, virtual reality (VR) technology is evolving, progressively altering people's experience of the world, and participating in many areas of growth, including the television business. In this thesis, the researcher discusses the challenges of VR sports broadcasting, including: identifying the sports events that viewers like to watch in VR, detailing the discomfort some viewers experience while using VR, and exploring the viability of VR advertising income.