bluuebunny/crossref_metadata_2025 huggingface dataset:
Case Report of Insular Carcinoid Arising From Mature Cystic Teratoma
Authors:   University Clinic of Obstetrics and Gynecology, Skopje, R Macedonia, A Vesna , S Siandra ,   University Clinic of Obstetrics and Gynecology, Skopje, R Macedonia, SB Eva ,   University Clinic of Obstetrics and Gynecology, Skopje, R Macedonia, B Neli ,   University Clinic of Oncology and Radiology, Skopje, R Macedonia, S Nezhla ,   University Clinic of Obstetrics and Gynecology, Skopje, R Macedonia, D Drage ,   University Clinic of Obstetrics and Gynecology, Skopje, R Macedonia
Published: January 2023

Primary ovarian Neuroendocrine Tumors (NETs) develop in pure form or in association with other tumors, mainly teratomas. Teratomas are the most common type of ovarian germ cell tumor. They are divided into three categories: mature (cystic or solid, benign), immature (malignant), and monodermal or highly specialized. Most teratomas are cystic and composed of mature adult-type tissues; they are better known as dermoid cysts. The Mature Cystic Teratoma (MCT) accounts for more than 95 percent of all ovarian teratomas and is almost invariably benign [1]. Mature cystic teratomas contain mature tissue of ectodermal (e.g, skin, hair follicles, sebaceous glands), mesodermal, and endodermal origin [2]. They are bilateral in 10 to 17 percent of cases [4]. Malignant transformation occurs in 0.2 to 2 percent of mature cystic teratomas [5-7]. Mature teratomas with malignant transformation comprise 2.9 percent of all malignant OGCTs [8]. The most common malignant change in a dermoid cyst is squamous cell carcinoma, followed by adenocarcinoma and carcinoid tumor [9-11]. The prevalence of Primary Ovarian Carcinoids (POC) is merely 0.1% in ovarian neoplasms and 1% in carcinoid tumors. POC was classified into trabecular, strumal, mucinous, and insular types, among which the latter is the most prevalent type and the only 1 associated with Carcinoid Syndrome (CS.) We report an extremely rare case of insular carcinoid tumor arising from a mature cystic teratoma with typical clinical manifestation.
Congenital Infection with Cytomegalovirus Presented as Blueberry Muffin Syndrome in a Preterm Newborn: A Case Report
Authors:   Associate Professor of Neonatology, Department of Pediatrics, Mazandaran University of Medical Sciences, Sari, Iran, R Farhadi
Published: January 2023

Blueberry muffin baby, describes a neonate with multiple purpuras, associated with several conditions in which extra blood is created in the skin. In this report, a premature baby is introduced who had skin lesions in the form of blueberry muffin at birth, and the related differential diagnosis and the final etiology of this baby will be reviewed.
Guided Soft Tissue Regeneration with Three-Dimensional Matrices: A Novel Technique to Enhance Volume Around Implants
Authors:   Department of Dentistry, Private Perio-Implant Practice, Rome, C De Annuntiis
Published: January 2023

In recent years, the attention to the soft tissue is growing because both the clinicians and the patients have understood they are crucial in achieving not just a good aesthetic but furthermore a long stability of the underlying bone. Until less than a decade ago, the only one way to manage periodontal or peri-implant soft tissue was with autologous connective tissue harvested from the palate or from the tuberosity. Nowadays, several substitutes derived from animal allow to avoid a second surgery to obtain connective tissue. The present manuscript presents a new approach to the modern implantology in order to achieve better outcomes from an aesthetic and functional point of view using a new porcine derived matrix. The manuscript shows either a step by step description of a novel technique to enhance soft tissue around implants.
Diiminium Nucleophile Adducts are Stable and Convenient Lewis Superacids
Authors: Bormann Niklas , Ward Jas S. , Bergmann Ann Kathrin , Wenz Paula , Rissanen Kari , Hatz Wolf-Benedikt , Burbaum Alexander , Mulks Florian F.
Published: January 2023

Strong Lewis acids are essential tools for a manifold of chemical procedures that aim to react weakly basic centres but their scalable deployment is severely limited by their costs and safety concerns. We report that dicationic relatives of guanidinium can be conveniently synthesised in a two-step one-pot procedure from tetramethylurea. Triflic anhydride is used to generate an isouronium intermediate. Substitution of the bound triflate with pyridines yield the dicationic tetramethyldiiminium bis(triflate) nucleophile adducts (TMDINu). Their proposed diiminium character is demonstrated by substituting pyridine from the corresponding adduct with other nucleophiles. The observation of a chelation effect in the 2,2’-bipyridine adducts supports Lewis acidic character of the diiminium π-system and flexibility towards accepting another bond. High fluoride, hydride, and oxide affinities are demonstrated, leading to their classification as soft and hard Lewis superacids. An example reaction is reported which shows that the tetramethyldiiminium bis(triflate) pyridine complex (TMDIPy) is more effective than conventional reagents in the activation of electron-poor amines for amide couplings.
Highly Robust Multilamellar Lipid Vesicles Generated through Intervesicular Self-assembly Mediated by Hydrolyzed Collagen Peptides
Authors: Koo Bon Il , Rahman Rafia Tasnim , Jang Jihui , Lee Dong Jae , Lee Jun Bae , Nam Yoon Sung
Published: January 2023

Despite the advantages of lipid vesicles for drug and gene delivery, structural instability limits their practical applications and requires strictly regulated conditions for transport and storage. Chemical crosslinking and in situ polymerization have been suggested to increase the membrane rigidity and dispersion stability of lipid vesicles. However, such chemically modified lipids sacrifice the dynamic nature of lipid vesicles and obfuscate their in vivo metabolic fates. Here we present highly robust multilamellar lipid vesicles through the self-assembly of pre-formed, cationic large unilamellar vesicles (LUVs) with hydrolyzed collagen peptides (HCPs). The cationic LUVs undergo vesicle-to-vesicle attachment and structural reorganization through polyionic complexation with HCPs, resulting in the formation of multilamellar collagen-lipid vesicles (MCLVs). The resulting MCLVs exhibit excellent structural stability against variations in pH and ionic strength and the addition of surfactants. Particularly, the MCLVs maintain their structural stability against repeated freeze-thaw stresses, proving the excellent stabilization effect of HCPs on lipid lamellar structures. This work provides a practically attractive technique for the simple and quick fabrication of structurally robust lipid nanovesicles without covalent crosslinkers, organic solvents, and specialized instruments.
Two-Coordinate Coinage Metal Complexes as Solar Photosensitizers
Authors: Muniz Collin , Archer Claire , Applebaum Jack , Schaab Jonas , Djurovich Peter , Thompson Mark
Published: January 2023

Generating sustainable fuel from sunlight plays an important role in meeting the energy demands of the modern age. Here we report the synthesis of new two-coordinate, molecular Cu(I) and Au(I) complexes that were designed to absorb visible photons (vis > 103 M-1cm-1), maintain long excited state lifetimes (~1-0.1s), and perform stable photo-induced charge transfer to a target substrate with remarkably potent photoreducing capabilities (E+/* up to 2.33 V vs. Fc+/0). The photoredox performance was evaluated in a variety of solvents, and we were able to understand the influence of ligand design and metal center on the photophysical properties. Interestingly, we found that the Cu(I) systems have competitive figures of merit with widely used scarce metal photosensitizers such as Ru(bpy)32+ and Ir(ppy)3. This work illuminates two-coordinate coinage metal complexes as promising, abundant metal, solar fuels photosensitizers that offer exceptional tunability and photoredox properties.
DFT Studies of Pt8V4Fe14 Nanoparticles and the O2 Adsorption
Authors: Toth Kristof , Wang Lichang
Published: January 2023

The ability to produce cheap and efficient catalysts for oxygen reduction is essential for cost reduction in fuel cells. This work reports the density functional theory (DFT) results of the investigation of ~1 nm trimetallic nanocatalysts of 26 atoms with a composition of Pt8V4Fe14. The relative stability of ~50 Pt8V4Fe14 nanoparticles (NPs) were analyzed to conclude that the most stable NPs had vanadium atoms located at the center of the NP with scattered platinum atoms attached to them from the outside. Adsorption of O2 on the most stable nanocatalyst was also analyzed at 14 various adsorption sites; it was determined that oxygen preferred to bond to vanadium and iron atoms located at the surface of the NP. Compared to the small sub-nanometer PtVFe clusters of the same composition, the O2 adsorption strength is slightly decreased on the ~1nm PtVFe NPs. These findings provided important insights into the effectiveness of PtVFe nanocatalysts towards oxygen reduction.
In-depth experimental and theoretical investigations on Co-SAC catalyzed transfer hydrogenation of azo compounds using methanol and ethanol
Authors: Panja Dibyajyoti , Mahapatra Divya , Dey Sadhan , Saha Rohini , Sahu Rajib , Das Gourab Kanti , Kundu Sabuj
Published: January 2023

Transfer hydrogenation of non-polar bond using methanol or ethanol such hydrogen source is of great challenge, and development of efficient catalyst for performing such challenging reactions always an exciting area to explore. Herein, using Co-SAC various azo bonds were very efficiently hydrogenated to the corresponding amines, including commercially used dyes. A number of kinetics study and Hammett studies were to investigate the plausible mechanism and electronic effects. Further, a detailed DFT-calculation was performed to get a deeper insight about the mechanism.
Types and economically valuable features of change produced by the gamma radiation before sowing the seeds by the M1 generation of the cotton plant
Authors: Zeynalova I.C. , Tagiyev A.A. , Gojayeva G.A. , Jafarov E.S.
Published: January 2023

The presented article presents the results on the types of changes in the M1 generation plants of Ganja-160, Ganja-182 and Ganja-183 cotton varieties treated with γ-rays in different doses before sowing, and their economically valuable features. It was found that in addition to sterile, late-ripening, small-boll forms of plants, as well as large-boll, compact bush, fast-growing, high-fiber forms of economic value are found in plants altered by γ-radiation. The results showed that an increase in the γ-radiation dose leads to increasing in the percentage of variability, while parameters such as productivity, fiber yield and fiber length decrease compared to the control plant.
Due to the special importance of productive, high fiber output, long-fiber, forms with high raw-cotton in one boll as a starting material, they were selected for use in next-generation plants. Thus, on the basis of them, it is possible to select economically valuable forms in future generations.
Acute Ischemic Stroke Therapy in a Hybrid Emergency Room: An Institutional Observational Cohort Study
Authors: Ito Yuta , Kudo Daisuke , Fujita Motoo , Osawa Shin-ichiro , Nakagawa Atsuhiro , Kushimoto Shigeki
Published: January 2023

Background: Endovascular therapy within an appropriate time has been shown to improve neurological outcomes in patients with ischemic stroke. A hybrid emergency room is an emergency unit that can be used for resuscitation, computed tomography (CT), surgery, and angiography. Therefore, immediate CT and endovascular therapy can be performed without transfer to other rooms. We aimed to evaluate the possibility of using a hybrid emergency room to shorten the time to endovascular therapy in patients with ischemic stroke.Methods: This was a single-institutional, retrospective, and observational study. Patients with acute ischemic stroke who underwent endovascular therapy in the hybrid emergency room between May 2018 and May 2020 were included in the study. The main outcome was door-to-puncture time. The secondary outcomes were door-to-reperfusion and onset-to-puncture time. Descriptive statistics were also calculated. Outcome times were compared with those recommended by recent guidelines.Results: Twenty-seven patients were included in this analysis. The median age was 77 (69–83) years. The median National Institutes of Health Stroke Scale score on admission was 15 (10–21.25), while the median door-to-puncture, door-to-reperfusion, and onset-to-puncture times were 45 (29–63), 140 (100–170), and 120 (71–224) minutes, respectively. The door-to-puncture time was within the recommended time of 60 minutes for approximately 75% of the patients.Conclusions: The door-to-puncture time in our study was shorter than that recommended by the guidelines. Acute ischemic stroke management in a hybrid emergency room could shorten door-to-puncture time, which may contribute to improving patients’ neurological outcomes.
Te Rito o Te Harakeke: Decolonising Child Protection Law in Aotearoa New Zealand
Authors: Fitzmaurice-Brown Luke
Published: January 2023

It is now firmly established that the overrepresentation of tamariki Māori within the Aotearoa New Zealand child protection system is largely a consequence of colonisation. However, at least as far as the Crown is concerned, the contention that decolonisation is a necessary step in reversing those trends remains a more controversial issue. Drawing on my doctoral research into this topic, this article argues that the child protection system must be decolonised, and that efforts towards reform which do not prioritise decolonisation are likely to perpetuate long-standing harms. The article has four goals. First, I examine why decolonisation provides the best framework through which to enact child protection system reform. Secondly, I identify three overarching themes within the current legal framework, but argue that the presence of these themes does not mean they are all given equal weight. Thirdly, I outline a theory of reform I have termed "kaupapa Māori legal theory", which seeks to enable legislative change based on tikanga Māori in a way which pays heed to the risks of doing so from a Māori perspective. Finally, I apply that theory to child protection law, identifying six tikanga principles which could provide the basis of a decolonised system: mana, rangatiratanga, wānanga, whānau, whakapapa and whanaungatanga.
Book Review: The Law of Criminal Investigation in New Zealand
Authors: Pike JC
Published: January 2023

Christopher Corns The Law of Criminal Investigation in New Zealand (Thomson Reuters, Wellington, 2021).
Psychological Nursing Combined with Biofeedback to Promote the Rehabilitation of Patients with Anxiety Disorder
Authors: Yang Xian
Published: January 2023

Objective: To explore the effect of psychological nursing combined with biofeedback on the rehabilitation of patients with anxiety disorder. Methods: 100 patients with anxiety disorders in our hospital from January to December 2021 were randomly divided into two groups: control group (n = 50) and study group (n = 50). The control group was given routine nursing, while the study group was given psychological nursing combined with biofeedback. The changes of self-rating anxiety scale (SAS) score, self-rating depression scale (SDS) score, symptom score, and quality of life of the two groups were compared before and after nursing. Results: Before nursing, there was no significant difference in the scores of SAS and SDS between the two groups, but after nursing, the scores of SAS and SDS in the study group were lower than those in the control group, and the degree of improvement in the study group was higher than that of the control group. Before nursing, there was no significant difference in the scores of symptoms between the two groups (P > 0.05), but after nursing, the scores of stress, crying spells, tremor, and general discomfort in the study group were lower than those of the control group (P < 0.05). Besides, before nursing, there was no significant difference in the quality of life between the two groups (P > 0.05), but after nursing, the scores of physical function, psychological activity, social ability, and material life in the study group were higher than those in the control group (P < 0.05). Moreover, the degree of improvement after nursing in the study group was better than that of the control group. Conclusion: Psychological nursing combined with biofeedback to promote the rehabilitation of patients with anxiety disorder effectively improves the negative emotion of patients, reduces stress, depression, tremor, and general discomfort, and improve the overall quality of life. Therefore, it is worth further popularization.
Video game and Catholic faith: Qualitative study on ‘That Dragon, Cancer’ among acolyte in Batam City
Authors: Wibowo Tony , Saribu Aloysius Edward Marselino Dolok
Published: January 2023

Video games are a means of entertainment especially among children and adolescent, including acolyte. Several video games use narration as dialogue to convey the story in video games. One of the video games that heavily focused on narrative is the video game That Dragon, Cancer. This video game tells of a family who has a child who has brain cancer. In that video game, it shows struggle of each family member deal with it in a surreal and enigmatic visual presentation. This study aims to prove is it possible to have positive view on Cotholic faith among acolytes by playing the video game That Dragon, Cancer. This study involved 30-acolyte which all of them play the video game without context and then we interviewed them. We found that the video game That Dragon, Cancer could create positive views of Catholic faith through narratives and video game design that show us to accept death and belief in God.
Стан психофізіологічних функцій у осіб із слабким ступенем набутої короткозорості
Authors: Шейко Віталій , Кучменко Олена , Кущ Юлія , Мхітарян Лаура , Глазков Едуард , Гавій Валентина
Published: January 2023

Метою дослідження було вивчення особливостей  психофізіологічних функцій у осіб із набутою формою короткозорості слабкого ступеня. Програма психофізіологічного дослідження включала вивчення нейродинамічних властивостей вищої нервової діяльності згідно методики М. В. Макаренка  та вивчення показників пам’яті, уваги і працездатності вищих відділ центральної нервової системи. На тлі набутої короткозорості слабкого ступеня відбувається покращення функціональної рухливості нервових процесів, швидкості центральної обробки інформації, показників уваги, обсягів короткочасної пам’яті, смислової пам’яті.
influence of qira’at on the development of grammatical and morphological rules
Authors: Abdelgelil Mohamed Fathy Mohamed , Abubakar Muhammad Habib , Hassan Isyaku
Published: January 2023

Little is known about the relationship between Qira’at and the development of Arabic grammar and morphology. This study, therefore, aims to explore grammatical and morphological rules of the Arabic language based on the modes of Qira’at. The study employs an analytical method in which grammatical and morphological rules are extracted from different modes of Qira’at based on scholars’ interpretations. The study revealed that grammatical and morphological rules are extracted from both usual and unusual modes of recitations. Additionally, there is no disagreement within the usual modes of recitations regarding the Arabic grammatical and morphological rules. Likewise, the usual and unusual modes of recitations are complementary to each other in terms of grammar and morphology. It is hoped that this study will be useful to educationists, particularly in the field of language, by providing evidence on how language is developed through Qira’at.
Cultural reference of respect and affection of Tay people through vocative words
Authors: Thi Ngu Duong
Published: January 2023

Culture has close relationship with many fields, including Linguistics. Language is a special product of culture, and especially Language of ethnic minorities in Vietnam is among concerns for research. It is a means of communication and a tool for thinking. Language is a means to reflect, maintain and develop culture. Any meaningful sign of a language also contains a cultural element. Vocative words are one of those cases. The article explores the vocative words system in human language Tay in Tuyen Quang Province, Vietnam and concluded that culture is not only a factor that generates language, but also an environment for language to exist and develop. Through the system of vocative words in the Tay language, it shows the cultural characteristics of respect and affection of the Tay people.
Study and teaching children's literature in education on the basis of new methodology
Authors: Ismayilova Nezaket
Published: January 2023

Neste artigo científico estudamos o patrimônio literário à luz de um novo pensamento nacional moderno, de acordo com as exigências da época. Além dos materiais tradicionais no ensino da literatura infantil, foram destacadas as últimas conquistas científicas neste campo, e foi mostrada a necessidade de obras que reflitam plenamente os sentimentos, alegrias, sofrimentos, experiências psicológicas e espirituais da criança. No processo de ensino, na formação da educação espiritual de crianças e jovens, no sentido de ampliar sua visão de mundo, o estudo da literatura infantil na educação na direção da metodologia mais moderna configura-se como uma questão importante da atualidade. Para formar especialistas que cumpram estes requisitos, é necessário rever os currículos, programas, manuais, auxiliares de ensino no ensino superior, devendo o seu nível estar ao nível das exigências de hoje, tanto em termos de métodos de ensino como em termos de teoria científica.
A RARE CASE OF DYSPNEA
Authors: Petre Olvis , Irma Tashi Bani , Jola Hasani , Justi Shestani , Silvana Bala , Hasan Hafizi
Published: January 2023

Idiopathic dilatation of the pulmonary artery defines the presence of a benign enlargement of the pulmonary trunk with or without the involvement of the rest of the arterial tree in the absence of a detectable cardiac or arterial systemic disorder. An IDPA patient’s symptoms and physical examination are not significant in diagnosis confirmation. Imaging techniques such as contrast-enhanced computed tomography, right heart catheterization, and angiocardiogram constitute the foundation of IDPA diagnosis. But an extended observation period is also necessary to exclude other possible dilatation explanation. Our patient, a forty-six-year-old female, was admitted to the Pulmonology clinic of “ShefqetNdroqi” University Hospital with dyspnea, dry cough, vertigo, and fatigue for several months before admission. The patient's contrast-enhanced Computed Tomography revealed a dilatation of the pulmonary trunk. The dilatation of the pulmonary trunk was confirmed with the Cardiac CT, and other abnormalities were excluded.
Water Elemental Composition and Toxicity in Kazakhstan’s Transboundary Rivers
Authors:   l-Farabi Kazakh National University, Al-Farabi Avenue 71, Almaty 050040, Kazakhstan, Severinenko M. , Solodukhin V. ,   Institute of Nuclear Physics, Ibragimov Street 1, Almaty 050032, Kazakhstan, Lennik S. ,   Institute of Nuclear Physics, Ibragimov Street 1, Almaty 050032, Kazakhstan, Kabirova G. ,   Institute of Nuclear Physics, Ibragimov Street 1, Almaty 050032, Kazakhstan, Zheltov D. ,   Institute of Nuclear Physics, Ibragimov Street 1, Almaty 050032, Kazakhstan, Bychenko A. ,   Institute of Nuclear Physics, Ibragimov Street 1, Almaty 050032, Kazakhstan
Published: January 2023

The article describes the monitoring results of the content of chemical elements (As, Cr, B, Ba, Li, Mo, Pb, Sb, Sr, U, and Cr) in the water of transboundary rivers of Kazakhstan (Shagan, Ural (kaz. Zhayik), Ilek, Tobol, Ayat, Irtysh (kaz. Yertys), Emel, Ili (kaz. Ile), Tekes, Shu, Kara-Balta, Talas, and Syr Darya) conducted in 2020. The toxic element concentrations underwent comparison with background levels (Clark[e] numbers) and maximum permissible concentrations (MPC), with sub-sequent calculation of the total toxicity index (KHL). The study showed that practically all the inves-tigated rivers were subject to contamination, with uranium and lithium as the greatest contributors to surface water toxicity. The rivers in Southern and South-Eastern Kazakhstan – namely, the Kara-Balta, Syr Darya and Shu – were found to be most exposed. For instance, the KHL of the Kara-Balta River water exceeded the permissible threshold by over 5.9 times. The lowest KHL value (<1) corre-sponded to the Yertys and Ile Rivers. The research made it possible to identify the toxicity of trans-boundary waters flowing into the territory of Kazakhstan, as well as provided basis for further in-vestigation to identify pollution sources.
PEMBERDAYAAN PEDAGANG INFORMAL PEREMPUAN MELALUI PELATIHAN KEWIRAUSAHAAN DAN PEMBENTUKAN KELOMPOK MODAL KERJA DI TAMAN – KELURAHAN KARANG BARU MATARAM
Authors: Rusdan Rusdan , Dayani Rahman , Sakti Dwi Putra Buana , Nurmayanti Siti , Rinuastuti Baiq Handayani
Published: January 2023

Tujuan kegiatan pengabdian pada masyarakat ini adalah; meningkatkan pengetahuan di bidang kewirausahaan, kemampuan mengelola modal kerja, dan memotivasi pemanfaatan waktu luang yang lebih efektif bagi pedagang informal perempuan di Lingkungan Taman Kelurahan Karang Baru. Hal ini sejalan dengan permasalahan yang dihadapi seperti; lemahnya pengelolaan usaha, sebahagian pedagang menggunakan dana pinjaman pihak ketiga dengan suku bunga  relative tinggi , dan hampir semua dari mereka usaha paruh waktu sehingga banyak waktu yang terbuang percuma. 

Solusi terhadap permasalahan ini adalah; (a) Pelatihan Kewirausahaan dan karakteristiknya, Ciri-ciri dan Sikap Mental Wirausaha,  Persyaratan Mutu seorang penjual, Etik Menjual , (b) Pelatihan pengelolaan kelompok modal kerja melalui sistem pengelolaan dana bergulir, (c) Pendampingan selama dua bulan.

 Kesimpulan dari pelaksanaan kegiatan pengabdian iniadalah ; (a) Pelaksanaan Pengabdian berjalan lancar sesuai rencana, (b) Belum mencerminkan karakteristik seorang wirausaha maupun sikap mental seorang wirausaha (c) Tidak ada catatan usaha, tidak ada pemisahaan kekayaan usaha dengan kekayaan rumah tangga (d) Tingkat kehadiran peserta  100 %, (e) Keaktipan peserta saat pelatihan cukup tinggi, (f) Adanya keinginan untuk memanfaatkan kelompok modal kerja sendiri.

Kata Kunci: Pemberdayaan , Pedagang Informal Perempuan, Kewirausahaan, Modal Kerja.
A Study on Physics-Mathematics Convergence Teaching-Learning Strategies Using Newton’s ‘Invention of Figures for Reflection’
Authors:   Korean Science Education Society for the Gifted, Lee Bongwoo
Published: January 2023

The purpose of this study is to propose a teaching and learning program for gifted students using the history of science. In ｢Waste Book｣, Isaac Newton presented three pictures and equations under the title of ‘Invention of figures for reflection’, this study proposed the three step program for teaching and learning using Newton’s work. The first step is the proof of Newton’s equations. The second and third steps are mathematical proofs of three questions about reflection in conic curves and physics proofs using Fermat’s principle. The three questions about reflection of conic curve are: 1. Does a ray parallel to the optical axis travel toward the focal point after reflecting in a parabola. 2. Does a ray traveling toward a focus travel toward the other focus after reflecting off the hyperbola? 3. Does a ray from a focus travel to the other focus after reflecting off the ellipse? etc. Additionally, the applications for gifted education were discussed through the relevance of the curriculum, the convergence of physics and mathematics, and the proofs through experiments.
Case Study on the Mathematically Gifted Elementary Students’ Collaborative Mathematical Problem Solving
Authors:   Korean Science Education Society for the Gifted, Lee Donghwan
Published: January 2023

The purpose of this study is to describe the specific process of collaborative problem solving and analyze its characteristics by analyzing cases in which collaborative problem solving occurred successfully. To this end, the results of the personal problem solving of math gifted students were analyzed, and a small group was formed in consideration of their own solutions to observe their cooperative problem solving process. Two characteristics were identified in the collaborative problem-solving process. First, math gifted students were able to understand different perspectives while sharing different solutions and verify their own solutions and the other’s solutions based on them. Second, students were able to reinterpret others’ perspectives and apply them to their own solutions, and in this process, they were able to complete quality solutions that were different from their own solutions as well as the other’s.
Penerapan Metode Lempar Tangkap Bola Untuk Meningkatkan Hasil Passing Atas Bola Voli
Authors:   Program Studi Pendidikan Olahraga, Fakultas Keguruan dan Ilmu Pendidikan         Universitas Muhammadiyah Surakarta, Septi Sistiasih Vera , Reza Pradana Shofyan ,   Program Studi Pendidikan Olahraga, Fakultas Keguruan dan Ilmu Pendidikan Universitas Muhammadiyah Surakarta
Published: January 2023

The type of research used is that researchers use collaboration with teachers to conduct classroom action research. This study was carried out 4 times face-to-face or two cycles, each cycle there are still two face-to-face. The purpose of this study was to find out how much influence volleyball learning has on the application of the ball capture throwing method to improve passing results for class VIII B volleyball at SMPN I Bendo Magetan. The subjects of this study were class VIII B students of SMPN I Bendo, totaling 31 children. The data collection technique in this study was to use an observation sheet. This research method is to use the cycle adopted from Arikunto. The results of this study explain the increase in passing over volleyball through the application of the ball capture throwing method to class VIII B students of SMPN I Bendo, totaling 31 children. This study aims to be able to determine the effect of the application of the ball capture throwing method on improving passing results for volleyball students of class VIII B of SMPN I Bendo. The data is obtained through the observation sheet of the passing ability of the volleyball. Based on the results of qualitative descriptive data analysis, the application of the ball capture throwing method in improving volleyball passing in grade VIII B students of SMPN I Bendo showed the final results of the upper passing ability: Incomplete category (17%) with a total of 26 students from 31 students overall, Complete Category: (83%) with a total of 5 students from 31 students overall. This research can be concluded that the implementation of volleyball learning by applying the ball capture throwing method can be used as an alternative to improve upper passing ability while reducing student saturation because this method is in the form of a game method.
Relationship Between Wingspan and Fuselage Length in Aircraft According to Engine Types
Authors: DURMUŞ Seyhun
Published: January 2023

The study aims to explain the size relationship between wingspan and fuselage length, which are the two basic design parameters that a designer is most curious about. Within the scope of the study, the relationship between take-off mass, fuselage length and wingspan of a total of 601 aircraft was questioned for single-piston, twin-piston, turboprop, and jet aircraft types. Power correlations were used for mass-based sizing of wingspan and fuselage length. In mass-based sizing, bad correlations were found for fuselage length for single-piston airplanes and good correlations for turboprops and jets. In terms of wingspan to fuselage length ratio (b/lfus) jets showed a more pronounced trend, ranging from 0.7 to 1.1, while other aircraft types showed different trends, ranging from 0.9 to 1.7. In general, racer, homebuilt, aerobatic, and light transport aircraft have low b/lfus ratios, while motor gliders, firefighters, patrol, and agricultural aircraft have high b/lfus ratios. The study is valuable in that it fills a gap in the literature by considering the relationship between wingspan and fuselage length both with correlations over mass and by revealing statistics according to aircraft types over proportional relationship.
The Effect of Technological Stress Dimensions on Employees' Decision-Making Styles and Regulatory Role of Job Insecurity Perception: A Research in The Aviation Sector
Authors: YILDIRIM Bekir Alper , ELBER BÖRÜ Deniz
Published: January 2023

The technological stress factor is more evident in the aviation industry, which uses high and rapidly changing technology, especially for technical employees. The purpose of this research is to determine the effect of technostress levels of aviation industry employees on their decision-making styles and to analysis the regulatory effects of job insecurity perception, which is of great importance for businesses and employees in this effect. The research universe has been determined as the technical personnel in the airline companies operating in Turkey. In all, 402 questionnaires were considered valid and included in the 25th data analysis of SPSS. It was determined that technological stress was statistically significantly related to rational, intuitive, avoidant and instant decision-making. Meanwhile, each decision-making style and the dimensions of job insecurity perception separately have significant moderator roles. Finally, it was revealed that all technostress dimensions, except for the techno-invasion dimension, were statistically significantly correlated with at least one decision-making style. In the research, suggestions were made for the effects of changes in employee’s decision-making styles and perceptions of job insecurity as a result of the effects of technostress, and the results were tried to be explained with aviation industry dynamics and theoretical literature.
Gambaran Pengetahuan, Sikap, dan Tindakan Masyarakat dalam Mematuhi Protokol Kesehatan Setelah Menerima Vaksinasi Covid-19 di Dusun Gubug Tahun 2022
Authors: Novenda Monica Sonya , Indrayanti Indrayanti
Published: January 2023

Pemerintah melakukan program vaksinasi Covid-19 untuk melindungi dari bahaya Covid-19, namun masyarakat beranggapan setelah vaksinasi Covid-19 tidak perlu mematuhi protokol kesehatan karena sudah aman. Hasil observasi di Dusun Gubug masih ada masyarakat saat keluar rumah tidak memakai masker dan menjaga jarak Hasil wawancara kepada 5 orang didapatkan 3 orang tidak mematuhi protokol kesehatan setelah menerima vaksinasi Covid-19 karena merasa aman.Tujuan penelitian untuk mengetahui gambaran pengetahuan, sikap, dan tindakan masyarakat dalam mematuhi protokol kesehatan setelah menerima vaksinasi Covid-19 di Dusun Gubug Argosari Sedayu Bantul tahun 2022. Desain penelitian menggunakan kuantitatif metode deskriptif. Penentuan sampel dengan teknik simple random sampling sebanyak 95 responden. Instrumen adalah kuesioner sebanyak 30 soal dan menggunakan analisis univariat. Hasil penelitian masyarakat sebanyak 83 orang (87.4%) memiliki kategori baik, sikap sebanyak 78 orang (82.1%) memiliki kategori baik, dan tindakan sebanyak 59 responden (62.1%) memiliki kategori cukup dalam mematuhi protokol kesehatan setelah menerima vaksinasi Covid-19. Kesimpulannya masyarakat Dusun Gubug memiliki pengetahuan dan sikap kategori baik serta tindakan kategori cukup dalam mematuhi protokol kesehatan setelah menerima vaksinasi Covid-19 tahun 2022.
Pengaruh Terapi Murottal Al-Qur’an Surah Ar-Rahman Terhadap Kualitas Tidur Lansia Di Upt Rumah Pelayanan Lanjut Usia Terlantar Budhi Dharma Yogyakarta
Authors: Dwi Nur Anggraeni  , Antari Isti , Arthica Ria
Published: January 2023

Latar belakang: Kualitas tidur yang buruk menjadi salah satu gangguan yang sering terjadi pada lansia. Dampak gangguan tidur pada lansia adalah ketidakmampuan tubuh untuk mengembalikan kondisi semula sehingga, mengakibatkan rasa lemas, sakit kepala, mengantuk dan lelah. Penanganan yang dapat dilakukan untuk meningkatkan kualitas tidur yaitu dengan pengobatan farmakologi dan nonfarmakologi. Terapi nonfarmakologi yang dapat dilakukan salah satunya adalah Terapi Murottal Al-Qur’an. Tujuan penelitian: mengetahui pengaruh terapi murrotal Al-Quran terhadap kualitas tidur pada lansia. Metode Penelitian: pre – exsperimental design dengan pendekatan one group pretest – posttest, dilaksanakan pada tanggal 1 Juni 2022 – 7 Juni 2022 selama 15 menit sebelum tidur. Populasi sejumlah 20 lansia. Sampel pada penelitian ini 20 responden yang mengalami gangguan tidur dengan teknik total sampling. Alat ukur menggunakan kuesioner PSQI dan speaker. Speaker yang berisikan surah Ar-Rahman yang dibacakan oleh Qori Misyari Rasyid dan speaker diputar dengan volume 75 desibel. Hasil dan pembahasan: terdapat pengaruh kualitas tidur lansia setelah mendengarkan Murottal Al-Qur’an surah Ar-Rahman dengan nilai ρ value .000. Kesimpulan: terapi murrottal Al-Quran dapat meningkatkan kualitas tidur pada lansia dan perlu dilakukan penelitian menggunakan terapi nonfarmakologi yang lain untuk meninglatkan kualitas tidur pada lansia.
Creating English Environment at School Through English Club Extracurricular
Authors: Astari Afifah Maulina , Hadi Muhamad Sofian
Published: January 2023

English proficiency has become something that should be mastered in this modern era. The limitations of educational institutions make the students lack mastery of the English language itself. Some schools solve the problem by making English extracurricular a “container” for students to express their interest and potential in English. This study aims to find out how the existence of an extracurricular English club can create a comfortable English environment for students. This study uses qualitative research with descriptive methods conducted through interviews and observations over 10 students as the respondence. The techniques for analyzing the data in this study used the Miles and Huberman model, including data reduction, data display, and drawing the conclusions. The results of the study found that the English club was a good means for students to practice English, as well as preparing students to be more mature and ready to compete
Implementation of Teaching Practitioners In Improving The Quality of Learning and Implementing The Curriculum Merdeka Belajar
Authors: Ingtias Fatma Tresno , Ampera Dina , Farihah Farihah , Amal Bakhrul Khoir , Purba Anwar Soleh
Published: January 2023

This research departs from the problem of how the initial conditions of learning in the Department of Family Welfare Education (PKK), how to implement the collaborative learning model, how to implement the collaborative learning model through teaching practitioners in the Department of Family Welfare Education (PKK), and how it affectsthe improvement of the quality of learning and the implementation of the Merdeka Belajar Kampus Merdeka curriculum.The research methods used include (1) a Research and Depelopment approach to produce guidelines for the implementation of teaching practitioners in the Department of Family Welfare Education (PKK) and (2) a descriptive quantitative approach to determine the implementation of teaching practitioners in the Department of Family Welfare Education (PKK), toimprove the quality of learning and the Merdeka Belajar Kampus Merdeka curriculum (MBKM). The research respondents involved were lecturers in the Department of Family Welfare Education (PKK), Practitioners from the Industrial and Business World (DUDI), and Students. The results of the study are expected to produce Teaching Practitioner Guidelines in the Department of Family Welfare Education (PKK), because this guideline is very important as a standard operating procedure for the implementation of teaching practitioner activities on campus so as to be able to increase the partnership between the Department of Family Welfare Education (PKK), with DUDI and the successful implementation of the curriculum Merdeka Belajar Kampus Merdeka (MBKM). Meanwhile, the results of a descriptive quantitative analysis of the influence of teaching practitioners in the Department of Family Welfare Education (PKK), improving the quality of learning and developing the MBKM curriculum will provide recommendations in the formulation of policies for achieving IKU-4, namely teaching practitioners on campus
Pengaruh Pendekatan Matematika Realistik Terhadap Kemampuan Pemecahan Masalah Siswa Sekolah Dasar
Authors: Rukiah Rukiah , Syamsuddin Agustan , Sulfasyah Sulfasyah
Published: January 2023

Penelitian ini adalah penelitian eksperimen yang bertujuan untuk mengetahui pengaruh pendekatan matematika realistik (PMR) terhadap kemampuan pemecahan masalah peserta didik kelas V sekolah dasar kabupaten Bantaeng. Jenis penelitian kuantitaf dengan metode eksperimen. Desain penelitian Quasi Eksperimental design. Populasi penelitian adalah peserta didik kelas V se-Kabupaten Bantaeng berjumlah 854 peserta didik. Pengambilan sampel menggunakan teknik sampel random sampling. Sampel penelitian ini berjumlah 23 orang peserta didik kelas V SDN 25 Panaikang. Instrumen penelitian adalah tes uraian dengan jumlah 2 soal untuk tes kemampuan pemecahan masalah. Teknik pengumpulan data menggunakan tes, dan dokumentasi. Analisis data terdiri dari uji instrumen (uji validitas), uji prasyarat analisis (uji normalitas dan uji homogenitas) dan uji hipotesis. Hasil penelitian yaitu terdapat pengaruh pendekatan matematika realistik (PMR) terhadap kemampuan pemecahan masalah peserta didik kelas V Sekolah Dasar Kabupaten Bantaeng. Temuan dalam penelitian ini adalah pengaruh pendekatan matematika realistik mampu membantu peserta didik dalam memecahkan masalah terutama dalam hal matematika.
Optimalisasi Waktu dan Biaya dengan Metode Time Cost Trade Off Pada Proyek Konstruksi Jalan
Authors: Natalia Monika , Atmaja Jajang
Published: January 2023

During the implementation of project work, there are various kinds of problems that will hinder project performance, so that the project will not be completed as planned, whether it is not on time, quality, and the cost, which sometimes occurs swelling. The road widening project for Lubuk Alung - Kuraitaji Road, Padang Pariaman District experienced a delay in implementation in the 16th week with a deviation of -7.091%. For this reason, it is necessary to control project implementation using the earned value method. From the analysis, the total duration of the project is 170 days, while the contract time is 150 days. This indicates a delay in project implementation for 20 days. In order to keep the project duration in accordance with the contract duration, it is necessary to accelerate it using the Time Cost Trade Off method. Acceleration is done by comparing 2 alternatives, namely the addition of working hours (overtime) and additional work shifts. After the comparisons were made, the additional acceleration cost of overtime work hours was Rp. 1,676,510,600.23 and alternative work shifts of Rp. 307,721,835.6 for direct costs. So the alternative chosen is an alternative work shift, because it has a small incremental cost, and is more efficient than using an alternative working hour overtime, while the duration of the project completion has returned to the contract time. The additional cost that must be paid by the contractor if the acceleration is not carried out is IDR 1,013,632,840.6, it would be more appropriate if the acceleration was carried out to overcome the delays in the Lubuk Alung - Kuraitaji Road Section in Padang Pariaman Regency, with a loss of IDR 307,722,000
PEMANFAATAN PASIR/KERIKIL SISA PENAMBANGAN BATU KAPUR PADA CAMPURAN PAVING BLOCK
Authors: Suhelmidawati Etri
Published: January 2023

Pemanfaatan Pasir dan Kerikil Sisa Penambangan Batu Kapur pada Campuran Paving Block merupakan salah satu bentuk inovasi dalam pemanfaatan limbah (bahan sisa). Penelitian ini diharapkan mampu menjadi salah satu solusi dalam memanfaatkan material sisa yang terbuang menjadi material yang memiliki nilai ekonomis dan sesuai standar paving block. Pembuatan sampel paving block dengan pasir dan kerikil silika menggunakan cara studi literatur, persiapan material, pengujian properties pada material, merencanakan campuran dan pembuatan benda uji dengan beberapa variasi, pengujian kuat tekan benda uji, serta menganalisis data yang didapatkan. Standar yang digunakan ialah SNI 03 – 0691 – 1996. Tujuan dari pembuatan paving block dan beton dengan pasir dan kerikil silica dari penambangan batu kapur ini adalah produk inovatif yang bisa diproduksi massal dan bernilai jual ekonomis, yang bisa dilakukan oleh masyarakat sebagai bentuk usaha ekonomi kecil yang bisa menambah pemasukan bagi masyarakat. Metoda yang digunakan dalam penelitian ini adalah metoda eksperimen di laboratorium beton teknik sipil Politeknik Negeri Padang, dengan melalui serangkaian uji material masing-masing agregat kasar dan halus, baik pasir silica dan kerikil silica, maupun pasir alami dan kerikil alam yang digunakan, apakah sesuai dengan standar yang dipersyaratkan. Berdasarkan hasil pengujian kuat tekan pada umur 21 hari diperoleh kuat tekan tertinggi sebesar 15,134 MPa.
Analisis Tingkat Risiko Dan Penerapan Smk3 Pada Proyek Pembangunan Rumah Sakit Umum Daerah Mangusada Badung
Authors: Sutapa I Ketut , Suasira I Wayan , Hermawati Putu , Setya Dharma I Putu Arya
Published: January 2023

Every construction project, whether high-tech or simple, has risks in the implementation process. there-fore it is necessary to establish a Project Safety Management (PSM), to minimize the risk of occupational safety and health (OSH) of construction project. However there are still many construction companies that are lacking in identifying risks of occupational safety and health(OSH) of construction project and implementing an occupational Project Safety Management (PSM)) in the process of implementing a con-struction project. The purpose of this study was to determine the level of risk occupational safety and health based on existing risk factors, and to measure the application level of SMK3 in a construction pro-ject. In this study, the object of the case study was the construction project of the Mangusada Badung Regional General Hospital, at the time of finishing work. After carrying out risk identification, 4 risk fac-tors are obtained, namely human, material, equipment and environmental factors. then the results of the identification are processed, and the level of risk obtained from the implementa-tion of the Mangusada Badung Regional General Hospital Development Project is included in the Medium Category, with a risk value of 6. Meanwhile, the implementation of the Project Safety Management (PSM) of the Mangusada Badung Regional General Hospital Construction Project was included in the good cate-gory with a total application value of 83%. Hopefully this research will serve as a reference in identifying occupational safety and health (OSH) risks, and a reference in implementing the Occupational Project Sfety Manajemen (PSM).