bluuebunny/crossref_metadata_2025 huggingface dataset:
VALIDITAS PERANGKAT PEMBELAJARAN MATEMATIKA DENGAN METODE PENEMUAN TERBIMBING PADA MATERI LINGKARAN KELAS VIII SMP
Authors: Luthfiana Kunalfi Reza , Abdurrahman Abdurrahman , Ariawan, Rezi , Andrian Dedek
Published: January 2022

The purpose of this research is to produce a mathematics learning tool in the form of the lesson plan and student's worksheet using the guided discovery method on the circle material of class VIII junior high school which has been tested valid. This development refers to the Research and Development (R&D) model which includes 10 stages, namely potential and problems, data collection, product design, design validation, design revisions, product trials, design revisions, usage trials, product revisions, and mass production. Modified according to the needs of this research into 6 stages, namely potential and problems, data collection, product design, design validation, design revision, and final product. The data analysis technique used is the descriptive analysis technique. The validation sheet was used as a data collection instrument in this research. The validation sheet is filled out by 3 validators consisting of 2 lecturers of the mathematics education study program FKIP UIR and 1 mathematics teacher. Based on the results of the lesson plan validation, a percentage of 85.6% was obtained with very valid criteria, while the students’ worksheet validation results were 82.6% with fairly valid criteria. This research concludes that mathematics learning tools have been obtained using the guided discovery method in class VII junior high school on the circle material which has been tested valid.
Hubungan Motivasi Belajar Ekstrinsik dan Disiplin Belajar dengan Hasil Belajar Matematika Peserta Didik di Sekolah Dasar
Authors: Septiani Eni , Erni Erni , Izzatika Amrina
Published: January 2022

The problem with this study is low mathematics learning outcomes of students. This study aimed to determine a relationship between learning extrinsic motivation and mathematics learning outcomes, relationship between learning discipline and mathematics learning outcomes, and relationshiop between learning extrinsic motivation and learning discipline to mathematics learning outcomes of students. This type of research is quantitative by an ex-postfacto correlation research method. The population in this study is 55 students. Sample retrieval techniques used a total sampling. Data collection techniques was used in the form of questionnaires and documentation. Data analysis techniques using statistical tests of multiple correlation. Research shows that there is a significant reationship between learning extrinsic motivation and learning discipline with the mathematics learning outcomes of students grade V with a coefficient correlation of 0,501 positive with “moderate” criteria.
PENINGKATAN KEMAMPUAN SISWA MEMAHAMI BERIMAN KEPADA ALLAH DAN BERIMAN KEPADA RASUL ALLAH PADA MATA PELAJARAN PENDIDIKAN AGAMA ISLAM DENGAN MENERAPKAN METODE PEMBELAJARAN CARD SORT
Authors: Muhisom Muhisom
Published: January 2022

The aim of the study was to improve the students' ability to understand Belief In God And Believing The Apostle Of God phrases through sort-term learning. The method used is class action research. The study population was 72 second graders at SDN 01 Haduyang Natar with the sampling technique using multistage random sampling, so the research sample was 24 students. Data collection techniques using tests and observations. Qualitative and quantitative data analysis techniques. The results of the study are that sort card-based learning methods can improve students' ability to understand Belief In God And Believing The Apostle Of God In Islamic Religion.
Pengaruh Penerapan Model Problem Based Learning Berbantuan Media Audio Visual Terhadap Hasil Belajar Tematik Peserta Didik
Authors: Napsiah Istikomatin , Muncarno Muncarno , Efendi Ujang
Published: January 2022

The purpose of the study was to determine whether there was an effect of applying the problem based learning model with the aid of audio-visual media on the learning outcomes of students in elementary schools. This research is quantitative research with Quasi Experimental Design method with Nonequivalent Control Group Design. The population in this study were fourth grade students at SD Negeri 1 Sumberagung, totaling 48 students. This research used purposive sampling technique. Data collection techniques used tests and observations. Data analysis techniques used a simple linear regression formula. Based on the results of the study, it can be stated that there is an influence on the application of problem based learning models assisted by audio visual media on thematic learning outcomes of fourth grade students of SD Negeri 1 Sumberagung. The results of this study are expected to be a reference for educators to innovate in developing innovative learning.
MEDIA KATALOG DIGITAL UNTUK PEMBELAJARAN SEJARAH DI MASA PANDEMI COVID-19
Authors: Ramadhan Fahmi Nur , Sunardi Sunardi , Musadad Akhmad Arif
Published: January 2022

Abstract

Various new problems emerged after history learning which is currently carried out online due to the Covid-19 virus pandemic. Thes new problems make the promblems in history learning more diverse after conventional history learning also experiences many problems. Various problems that arise in online history learning such as students who are easily bored and tired, student who increasingly do not understand the material presented, students who are inceasingly not interested in online history learning, students do not always pay attention and are not easy to monitor after learning online history. The purpose of this research is to overcome various problems that occur due to online history learning through the use of the Digital History Catalog learning media. This study uses a research method in the form of descriptive qualitative research. The result showed that uses of appropriate, innovative, interactive learning media and being able to adapt to online learning was needed both by students and by the teachers themselves. Media such as the Digital History Catalog can overcome the problems that occur due to online history learning. Digital History Catalog Media can adjust the material to be delivered according to those listed in the KI and KD of history learning.

Keywords: History Learning, Covid-19 Pandemic, History Digital Catalog.

Abstrak

Berbagai permasalahan baru muncul setelah pembelajaran sejarah yang saat ini dilakukan secara online akibat terjadinya pandemi virus Covid-19. Masalah-masalah baru tersebut membuat masalah dalam pembelajaran sejarah semakin beragam setelah pembelajaran sejarah secara konvensional pun mengalami banyak permasalahan. Berbagai masalah yang muncul dalam pembelajaran sejarah online seperti misalnya siswa yang mudah cepat bosan dan lelah, siswa yang semakin tidak paham tentang materi yang disampaikan, siswa yang tidak tertarik dengan pembelajaran sejarah online, siswa tidak selalu memperhatikan dan tidak mudah untuk dipantau setelah dilakukannya pembelajaran sejarah online. Tujuan dari penelitian yang dilakukan ini ialah untuk mengatasi berbagai permasalah yang terjadi akibat pembelajaran sejarah online melalui sebuah penggunaan media pembelajaran Katalog Digital Sejarah. Penelitian ini menggunakan metode penelitian berupa penelitian kualitatif deskriptif. Hasil penelitian menunjukkan bahwa penggunaan media pembelajaran yang tepat, inovatif, dan interakitf serta mampu menyesuaikan dengan pembelajaran online sangat dibutuhkan baik oleh siswa maupun oleh guru sendiri. Media seperti Katalog Digital Sejarah dapat mengatasi permasalahan-permasalahan yang terjadi akibat pembelajaran sejarah online. Media Katalog Digital Sejarah dapat menyesuaikan materi yang akan disampaikan sesuai dengan yang tercantum dalam KI dan KD pembelajaran sejarah.

Kata Kunci: Pembelajaran Sejarah; Pandemi Covid-19; Katalog Digital Sejarah
The Importance of Metacognitive Listening Strategy in English Listening Improvement: A Review
Authors: Alber Alber , Safriyanti Maria
Published: January 2022

The metacognitive listening strategy has an important role in the process of enhancing English listening comprehension. This article reviewed six empirical studies related to the impact of metacognitive listening strategy use while learners tried to improve their listening comprehension in different environments. The findings showed that learners used some metacognitive listening strategies to help them to comprehend the listening text tasks. It also indicated that various factors affect learners’ successful learning on their listening comprehension improvement. It can be concluded that the metacognitive listening strategy has had a positive impact while they are used regularly in the language learning process.
Online Writing Assessment during the Covid-19 Pandemic: Challenges, Options and Scenarios
Authors: Handayani Fitri , Syarif Hermawati
Published: January 2022

Assessment is at the core of the teaching process. It shapes students’ understanding of the curriculum and determines their ability to progress. Choosing an assessment strategy is an important aspect of the curriculum planning process. Hence, in the context of this shift from face-to face learning to full-time online learning, several challenges arose including how to develop online writing assessment to the students. In particular, online assessment of students’ writing has become an unprecedented new situation for many English lecturers. The transition from face-to-face assessment to online assessment has been a new experience for many English lecturers who have never applied it before nor have background knowledge of its mechanisms and methods. The issue has raised an important point for English teaching practitioners and course designers regarding the strategies and challenges of this mandatory mode of assessment. From this perspective, the purpose of this paper is to provide an overview of online writing assessments in the COVID-19 pandemic era, including challenges faced by lecturers in conducting online assessments, as well as a set of recommendations for designing online assessment mechanisms and strategies that will result in a fair assessment process for all.
Needs Analysis of Japanese Courses for Nursing Students
Authors: Lestari Imelda Indah , Yusri Lady Diana
Published: January 2022

Japanese is an elective course that can be taken by every student in the Nursing Study Program of Stikes Ranah Minang. References regarding the teaching material given to the students must be appropriate so that they can get the benefit from this course. To find out the reference, it is necessary to do a needs analysis so that the students get the material that they really need to support their learning process at present time or in the future. This study was conducted to analyze the needs of Japanese language learners. The research was conducted with a qualitative approach and descriptive method. The research population is the students who are taking the course of Japanese Language II at the Stikes Ranah Minang Nursing Study Program. The research instrument used is a questionnaire. Data were analyzed using the descriptive techniques in the form of numbers and percentages.
Quizizz as Indonesian Learning Media During The COVID-19 Pandemic
Authors: Nisa Khairun
Published: January 2022

During the COVID-19 epidemic, this research aimed to improve students' fundamental Indonesian knowledge using Quizizz as a game-based learning tool. Description qualitative research technique. The study sample consisted of 33 students from the first semester of the Indonesian Language and Literature Education Study Program. The research instrument is multiple-choice questions about standard and non-standard words and Indonesian writing, which is included in the quizizz website. The data analysis technique was carried out in four stages; 1) data collection, data reduction; data presentation; and concluding. Based on the analysis results, it was found that the quizizz learning media in learning Indonesian can increase student interest in learning and is very effective in increasing knowledge of writing or spelling Indonesian and standard Indonesian grammar. Quizizz also prepares lecturers and students for global education expectations. Online interactive games can help enhance language education and boost digital literacy among the youth, both of which are essential for the fourth industrial revolution.
The Development of Learning Material Model in Writing Scientific Papers by Using Guided Inquiry Method at Universitas PGRI Sumatera Barat
Authors: Mana Lira Hayu Afdetis
Published: January 2022

This research is motivated by the difficulties of students in determining the topic of scientific writing, difficulties in conveying ideas and limitations of references. This study aims to develop a learning model for writing scientific papers using the guided inquiry method. This type of research is development research. This study uses a 4-D development research design. The results of this study are as follows: (1) the material for writing scientific papers is difficult because students do not understand the concept of Scientific Writing. (2) in developing scientific work students do not yet know the systematics of scientific writing and students often make ineffective sentences (3) students really need freedom in determining writing topics and ideas (4) most students need the concept of learning to write scientific papers, (5) most students need lecturer guidance in their writing, (6) most students need systematic scientific work concepts, (7) most students need lots of references to write scientific papers. Based on the analysis of student needs, it is necessary to develop a Guided Inquiry-Based Scientific Writing Textbook that provides opportunities for students to find their own concept of learning to write scientific papers. Through Guided Inquiry, students are trained to think critically with teacher guidance.
Strategies to Overcome Interlanguage Fossilization by Using Flipped Learning in Pandemic Era
Authors: Widyaningsih Yunita
Published: January 2022

Learning foreign language means learn all aspects of the language, such as language features, sociolinguistics, psycholinguistics, grammar, structure and culture. The different of these aspects from target language and native language will create different form output both of them, that known as the interlanguage. Interlanguage fossilization is common in the process of foreign language learning, which causes foreign language learners not make progress any more. Based on teaching learning process condition, researcher applied the strategies to overcome interlanguage fossilization by using flipped learning in pandemic era. This research focuses on grammatical errors. This study belongs to quantitative method. The study conducted in the pandemic era when the teaching learning process of the students in Padang applied in two shifts both face to face learning and online learning. The research conducted in 3 weeks of learning process. each week consists of two meetings by applying flipped learning Approach. The result of this study showed that there was positive effect of using strategies in flipped learning to overcome their fossilization of target language. The result indicates that almost all of the learners’ grammatical errors could be eliminated step by step and need more process and times.
Ecotourism in Dominica: Studying the Potential for Economic Development, Environmental Protection and Cultural Conservation
Authors: Slinger-Friedman Vanessa
Published: January 2022

Over the last 20 years, the government of the small Caribbean island nation of Dominica has pursued the development of ecotourism on the island. The hope is that this industry will promote dispersed economic development while providing environmental protection and cultural conservation. However, not enough has been done to determine whether or not the industry is achieving the desired results. To this end, this study explores the growth of the tourism industry on Dominica and shows that, while not perfect, ecotourism is providing some definite benefits to the island in this regard.
Organizations as Designed Islands
Authors: Gagliardi Pasquale
Published: January 2022

The literature and practice of organizational design are mostly based on simplistic conceptions which ignore recent theoretical developments in organizational studies. Conceiving of organizations as ‘designed islands’, it is argued, can contribute to a more solid theoretical foundation to organization theory, viewed as normative science. Relying on the work of Peter Sloterdijk, who describes the forms of life in space in terms of spheres, the heuristic power of the island metaphor is explored. What can be learnt from the art of isolating in order to construct lived organizational environments is then discussed, and the paradoxical relationship between connection and isolation is highlighted.
Geography, Islands and Migration in an Era of Global Mobility
Authors: King Russell
Published: January 2022

This paper examines the changing role of islands in the age of globalization and in an era of enhanced and diversified mobility. There are many types of islands, many metaphors of insularity, and many types of migration, so the interactions are far from simple. The ‘mobilities turn’ in migration studies recognizes the diversification in motivations and time-space regimes of human migration. After brief reviews of island studies and of migration studies, and the power of geography to capture and distil the interdisciplinarity and relationality of these two study domains, the paper explores various facets of the generally intense engagement that islands have with migration. Two particular scenarios are identified for islands and migration in the global era: the heuristic role of islands as ‘spatial laboratories’ for the study of diverse migration processes in microcosm; and the way in which, especially in the Mediterranean and near-Atlantic regions, islands have become critical locations in the geopolitics of irregular migration routes. The case of Malta is taken to illustrate some of these new insular migration dynamics.
THE USE OF INDIRECTNESS AND TAG QUESTIONS BY POWERFUL AND FOWERLESS MEN AND WOMEN ON TRIALS: EVIDENCE FROM INDONESIA
Authors: MULYANI EUIS RINA
Published: January 2022

This study was aimed at investigating the use of indirectness and question tags in some Indonesian trials. The data were chosen randomly from YouTube’s videos. The subjects were twenty people consisting of judges, witnesses, and defendants (the accused). To analyze the data, the conversations of the videos were firstly transcribed verbatim. Then, they were analyzed using the framework of Thomas (1995) and Holmes (1984). The data showed that indirect speech style and question tags were more attached to powerful women.
Joaquina Vera, traductora de Edward Bulwer-Lytton: Leyla o El sitio de Granada (1845)
Authors: García Calderón Ángeles
Published: January 2022

Artículo que versa sobre la dramaturga y traductora jiennense Joaquina Vera, la cual desarrolló su labor literaria en las décadas centrales del siglo XIX, adaptando y traduciendo obra de teatro francesas, y un relato inglés del prolífico escritor victoriano Edward Bulwer-Lytton, Leila, or The Siege of Granada (1838), que suscitó el interés entre los intelectuales españoles, imbuidos de las propuestas románticas, por su doble vertiente orientalista y medieval. El análisis de la versión de Vera se lleva a cabo basándose en tres ejes: el paratexto, las estrategias y lo errores de traducción.
Traducciones y censura. La obra de George Sand durante la dictadura franquista
Authors: Riba Caterina , Sanmartí Carme
Published: January 2022

Este artículo analiza las dificultades que tuvieron ante los censores franquistas las obras de George Sand, escritora que encarnaba un modelo de mujer emancipada, intelectual, crítica con el sistema, con la familia tradicional y simpatizante del socialismo y el comunismo, movimientos estigmatizados por el régimen. Recorreremos la censura administrativa y moral de una muestra representativa de su prolífica producción literaria. Nos centraremos en concreto en las traducciones al español de Indiana, Mauprat, Francisco el expósito y Ella y él.
Utilizing smartphone-based electrocardiography and thoracic radiography to evaluate cardiac function and morphology in geriatric Sika deer (Cervus nippon)
Authors: Gonzalez-Jassi Hugo A. , LeBlanc Nicole , Alcantar Benjamin E. , Garces Torres Rodrigo S.
Published: January 2022

OBJECTIVE

To describe qualitative and quantitative cardiothoracic values in geriatric Sika deer (Cervus nippon) using digital radiography, 6-lead ECG (sECG), and smartphone-based ECG (aECG).

ANIMALS

10 healthy geriatric Sika deer (9 females and 1 male).

PROCEDURES

Deer were chemically immobilized, thoracic radiographs were obtained, and inhalant anesthesia was initiated. An sECG and aECG were simultaneously recorded for each animal using the same ECG specifications. Results were compared between devices.

RESULTS

Radiographically, no deer had any cardiopulmonary abnormalities. Median (range) values for the most important cardiac measurements were 170 (153–193) mm for cardiac height, 135 (122–146) mm for cardiac width, 9 (8–9) for vertebral heart score, and 99 (69–124) mm for cardiosternal contact. All deer had a normal sinus rhythm with no pathological arrhythmias noted. A significant difference between sECG and aECG was identified for minimum heart rate (49 vs 51 beats/min, respectively), P wave duration (0.05 vs 0.03 seconds), P wave amplitude (0.28 vs 0.10 mV), PR interval (0.15 vs 0.12 seconds), and QT interval (0.39 vs 0.30 seconds).

CLINICAL RELEVANCE

Thoracic radiographs were suitable to evaluate basic cardiothoracic morphology in Sika deer. The aECG was useful for assessing heart rate and rhythm but, compared with sECG, proved no substitute for evaluating duration and amplitude of ECG waveforms.
Acellular fish skin grafts for the management of wounds in dogs and cats: 17 cases (2019–2021)
Authors: Mauer Elise S. , Maxwell Elizabeth A. , Cocca Christina J. , Ganjei Justin , Spector Daniel
Published: January 2022

OBJECTIVE

To report the clinical outcomes of the use of acellular fish skin grafts (FSGs) for the management of complex soft tissue wounds of various etiologies in dogs and cats.

ANIMALS

13 dogs and 4 cats with complex wounds treated with FSGs between February 2019 and March 2021.

PROCEDURES

Medical records were reviewed for information regarding cause, location, size of the wound, management techniques, complications, and clinical outcomes.

RESULTS

In dogs, the number of FSG applications ranged from 1 to 4 (median, 2 graft applications). The time between each application ranged from 4 to 21 days (median, 9.5 days). Time to application of the first FSG ranged from 9 to 210 days (median, 19 days). Wounds closed by second-intention healing following the first fish skin application between 26 and 145 days (median, 71 days; n = 12). In cats, 1 or 2 FSGs were used, and the wounds of 3 of 4 cats healed completely by secondary intention. The wounds of 1 dog and 1 cat did not heal. There were no adverse events attributed to the use of the FSGs.

CLINICAL RELEVANCE

For dogs and cats of the present study, complete healing of most wounds occurred with the use of FSGs, the application of which did not require special training, instruments, or bandage materials.
Comparison of complete blood counts in samples obtained from healthy dogs and cats by use of standard and microsample blood collection tubes
Authors: Whittemore Jacqueline C. , Flatland Bente
Published: January 2022

Objective—To compare results of a CBC performed on blood samples obtained from healthy dogs and cats by use of standard and microsample collection tubes.

Design—Evaluation study.

Animals—29 healthy client-owned animals (14 dogs and 15 cats).

Procedures—A blood sample (3 mL) was collected from each animal; 2.5 mL was transferred into a vacuum tube that contained sodium EDTA, and 0.5 mL was transferred into a microsample tube that contained sodium EDTA. Variables evaluated were total numbers of RBCs and WBCs, hemoglobin concentration, Hct, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration (MCHC), mean platelet volume, and plasma total protein concentration as well as neutrophil, lymphocyte, monocyte, eosinophil, basophil, and platelet counts. Results for the 2 types of tube in each species were compared by use of Pearson correlation coefficients, Passing-Bablok regression analysis, and Bland-Altman analysis.

Results—The Pearson correlation coefficient was low for basophil count in cats and moderate, high, or very high for all other variables. Constant and proportional biases were identified for MCHC in dogs by use of Passing-Bablok regression analysis, although the mean difference between types of blood collection tubes was small. No evidence of constant or proportional bias for any other variable was revealed by regression analysis or Bland-Altman analysis.

Conclusions and Clinical Relevance—Samples obtained from healthy dogs and cats by use of microsample blood collection tubes provided clinically equivalent CBC results, compared with results for samples obtained by use of standard blood collection tubes, and minimized the total sample volume collected for diagnostic testing.
Resolution of persistent pneumothorax by use of blood pleurodesis in a dog after surgical correction of a diaphragmatic hernia
Authors: Merbl Yael , Kelmer Efrat , Shipov Anna , Golani Yael , Segev Gilad , Yudelevitch Sigal , Klainbart Sigal
Published: January 2022

Case Description—A 15-kg (33-lb) pregnant female mixed-breed dog of unknown age was referred because of a 10-day history of difficulty breathing.

Clinical Findings—Physical examination findings were dyspnea, tachypnea, decreased bronchovesicular sounds (bilateral), muffled heart sounds, and abdominal distention with palpable fetuses. Hematologic abnormalities included anemia, leukocytosis, and thrombocytosis. Abnormalities detected during serum biochemical analysis included decreases in concentrations of albumin, sodium, triglycerides, and total calcium and increases in activities of alkaline phosphatase, alanine aminotransferase, γ-glutamyltransferase, aspartate aminotransferase, lactate dehydrogenase, and creatine kinase. Thoracic radiography revealed a diaphragmatic hernia with fetuses and a soft tissue or fluid opacity within the thoracic cavity.

Treatment and Outcome—Exploratory celiotomy, ovariohysterectomy, partial sternotomy, placement of a right-sided thoracostomy tube, and herniorrhaphy were performed. After surgery, pneumothorax developed, and the thoracostomy tube was used to remove pleural effusion and free air. The pneumothorax did not resolve after continuous drainage of the thoracic cavity for 4 days. Autologous blood pleurodesis was performed by infusion of 80 mL (6 mL/kg [2.73 mL/lb]) of whole blood. The pneumothorax resolved immediately after injection of the blood.

Conclusions and Clinical Relevance—Blood pleurodesis was used for resolution of pneumothorax in a dog after correction of a diaphragmatic hernia. Blood pleurodesis may provide a simple, safe, and inexpensive medical treatment for resolution of persistent (duration > 5 days) pneumothorax when surgery is not an option.
Esophageal dysfunction in four alpaca crias and a llama cria with vascular ring anomalies
Authors: McKenzie Erica C. , Seguin Bernard , Cebra Christopher K. , Margiocco Marco L. , Anderson David E. , Löhr Christiane V.
Published: January 2022

Case Description—3 alpaca crias and cadavers of an alpaca cria and a llama cria were evaluated for evidence of esophageal dysfunction.

Clinical Findings—All 5 crias were between 3 and 5 months of age when clinical signs developed, and all had a thin body condition when examined. Clinical signs included coughing, regurgitation, and grossly visible esophageal peristaltic waves. A barium esophagram was used to diagnose esophageal obstruction, megaesophagus, and a vascular ring anomaly (VRA). Fluoroscopy was used to evaluate deglutition, esophageal peristalsis, and the extent of esophageal dilation in 1 alpaca cria. A persistent right aortic arch was identified in 1 alpaca cria, and a left aortic arch with right ductus arteriosus or ligamentum arteriosum and an aberrant right subclavian artery were identified in the 4 remaining crias.

Treatment and Outcome—Surgical correction of the VRA was attempted in the 3 live alpaca crias. It was complicated by the conformation and location of each VRA and inaccurate anatomic diagnosis of the VRAs before surgery. Treatment was universally unsuccessful because of intraoperative complications and the persistence of clinical signs after surgery.

Clinical Relevance—Megaesophagus is typically an idiopathic condition in camelids. However, these findings suggested that camelids with esophageal dysfunction during the neonatal period may have a VRA. The prognosis is grave for camelids with VRA, and accurate anatomic diagnosis of the VRA via the use of advanced imaging techniques (eg, angiography, computed tomography, or magnetic resonance imaging) may improve the success of surgical intervention.
Tensile Properties Analysis of 3D Flat-Knitted Inlay Fabric Reinforced Composites Using Acoustic Emission
Authors: Tan Jiangtao , Jiang Gaoming , Wu Guangjun , Ma Pibo
Published: January 2022

In this work, based on the quasi-static tensile test and acoustic emission technology, the tensile properties of two types of three-dimensional flat-knitted inlay fabrics reinforced composites are investigated, and the acoustic emission characteristic parameters of various damage mechanisms are obtained. The transverse tensile process of specimens could be divided into the elastic stage, yield stage, and fracture stage. We found that, compared with the fluctuation of the stress-strain curve in the yield stage, weft insertion yarns in composite with interlock structure broke almost simultaneously, while the composite with plain stitch broke successively. The transverse and longitudinal tensile strength of the composite with interlock structure was 44.70% and 28.63% higher than the composite with plain structure, respectively. The SEM micrographs showed that the damage mechanism of the composites was matrix fracture, fiber-matrix debonding, and fiber breakage. The amplitude ranges of the three damage mechanisms were 50–65 dB, 65–80 dB, and 90–100 dB, respectively, and the frequency ranges were 35–114 kHz, 116–187 kHz, and 252–281 kHz, respectively. Fiber-matrix debonding and matrix fracture had large cumulative AE energy, numerous events, and long duration time, while fiber breakage had the characteristics of large amplitude, high frequency, low cumulative AE energy, few events, and short duration time.
Evaluation of postharvest storability of Ponkan mandarins stored at different temperatures
Authors: Cai Nan , Wan Chunpeng , Chen Jinyin , Chen Chuying
Published: January 2022

The effects of storage temperature on postharvest storability, quality attributes and antioxidant enzyme activities of harvested Ponkan mandarins were investigated. Fresh fruits were randomly divided into four groups and stored at different temperatures [5 ± 1 °C (S5), 10 ± 1 °C (S10), 15 ± 1 °C (S15), and 20 ± 1 °C (S20 or control)] for 120 days. The results indicated that, compared with the control fruit, low-temperature storage at 10 °C significantly delayed the increase in fruit decay rate, weight loss, citrus colour index, respiration intensity, relative electrical conductivity, the accumulation of hydrogen peroxide and malondialdehyde, retarded the decline in L* value, retained high contents of total soluble solid, titratable acid, vitamin C, total phenol and total flavonoid, as well as higher activities of antioxidant enzymes – superoxide dismutase, catalase, peroxidase and ascorbic peroxidase. The principal component analysis results showed that low-temperature storage significantly maintained the postharvest quality of Ponkan mandarins, with fruit stored at 10 °C having no significant difference from the fruit stored at 5 °C, but markedly higher than those fruit stored at 15 °C. The comprehensive result of single-factor analysis and PCA showed that 10 °C could be used as the optimum storage temperature for improving the postharvest storability of Ponkan mandarins.
Pandemic Images and Gestalt Theory: Introspective Musings About a Series of Digital Art-works
Authors: Behrens Roy R.
Published: January 2022

In this paper, the author shares his thoughts about the precedents, process, and significance of a series of “digital montage” artworks that he originated during the time of the COVID-19 pandemic. In particular, he talks about the indebtedness of these works to Gestalt theory, and particularly their use of what is sometimes known as “laws of seeing,” “unit-forming factors,” or inherent “grouping tendencies.”
Gibt es eine Gestalttheorie der Emotionen? Ein Diskussionsvorschlag
Authors: Metz-Göckel Hellmuth
Published: January 2022

An emotional episode consists of psychological, physiological, motor and expressive components that are tied together. Present theories and previous contributions by gestalt theorists to emotions are discussed. It is shown that the synergetic system theory represents a fruitful model for emotional processes, in which self-organisation plays a central role. Also, a selection of neuropsychological findings in this context is taken into account.
Electric cell-substrate impedance sensing in biocompatibility research
Authors: Kociubiński Andrzej
Published: January 2022

In this paper, the possibility of using cell culture impedance measurements to assess the biocompatibility of a material in contact with cells was analyzed. For this purpose, the Electric Cell-substrate Impedance Sensing (ECIS) method and a commercial measuring device were used. The test substrates with thin-film electrodes made of various metals were prepared using the magnetron sputtering method. The choice of metals was dictated by their varying degrees of biocompatibility. Cultures of mouse fibroblasts were cultured on the prepared substrates. The experiment showed that the complete cycle of culture from attachment and reproduction to apoptosis occurred. The results obtained indicate that it is possible to use the ECIS method to study the influence of metal on cell culture activity.
Electrical impedance plethysmography versus tonometry to measure the pulse wave velocity in peripheral arteries in young healthy volunteers: a pilot study
Authors: Wiegerinck A. I. P. , Thomsen A. , Hisdal J. , Kalvøy H. , Tronstad C.
Published: January 2022

The leading cause of health loss and deaths worldwide are cardiovascular diseases. A predictor of cardiovascular diseases and events is the arterial stiffness. The pulse wave velocity (PWV) can be used to estimate arterial stiffness non-invasively. The tonometer is considered as the gold standard for measuring PWV. This approach requires manual probe fixation above the artery and depends on the skills of the operator. Electrical impedance plethysmography (IPG) is an interesting alternative using skin surface sensing electrodes, that is miniaturizable, cost-effective and allows measurement of deeper arteries. The aim of this pilot study was to explore if IPG can be a suitable technique to measure pulse wave velocity in legs as an alternative for the tonometer technique. The PWV was estimated by differences in the ECG-gated pulse arrival times (PAT) at the a. femoralis, a. popliteal, a. tibialis dorsalis and a. dorsalis pedis in nine healthy young adults using IPG and the SphygmoCor tonometer as a reference. The estimated PWV results from bioimpedance and the tonometer were fairly in agreement, and the beat-to-beat variability in PAT was similar. This pilot study indicates that the use of IPG may be a good alternative for estimating PWV in the legs.
Classification of emotions based on electrodermal activity and transfer learning - a pilot study
Authors: Jacobsen Fredrik A. , Hafli Ellen W. , Tronstad Christian , Martinsen Ørjan G.
Published: January 2022

This paper describes the development, execution and results of an experiment assessing emotions with electrodermal response measurements and machine learning. With ten participants, the study was carried out by eliciting emotions through film clips. The data was gathered with the Sudologger 3 and processed with continuous wavelet transformation. A machine learning algorithm was used to classify the data with the use of transfer learning and random forest classification. The results showed that the experiment lays a foundation for further exploration in the field. The addition of augmented data strengthened the classification and proved that more data would benefit the machine learning algorithm. The pilot study brought to light several areas to help with the expansion of the study for larger scale assessment of emotions with electrodermal response measurements and machine learning for the benefit of fields like psychology.
Evaluation of Effectiveness of Waterjet Propulsor for a Small Underwater Vehicle
Authors: Rowinski Lech , Kaczmarczyk Maciej
Published: January 2022

The goal of the project described is to replace the existing propulsion system of a small underwater vehicle with a solution less prone to mechanical damage and ensuring a lower risk of the entanglement of fibrous objects suspended in the body of water. Four typical marine screws are utilised in the current design of the vehicle. One possible solution of the problem is the application of waterjet propulsors located inside the body of the vehicle instead. The general condition of the application of the new solution was to secure at least the same motion control capabilities of the vehicle while the basic capability is its propulsion effectiveness at the required speed. Specific features of the considered waterjet propulsor, when compared with their application in surface vessel propulsion, are the lack of the head losses and the low significance of cavitation issues. One of the difficulties in the considered case is the small diameter of the propulsor in comparison to commercially available waterjet units, which have diameters between 0.1 [m] and 1.0 [m]. There is very little data regarding the design and performance of devices in the 0.02 to 0.05 [m] range. Methods utilised to forecast the performance of the new propulsion system are presented and results compared. These were semi-empirical calculations, numerical calculations and tests of real devices. The algorithm that is based on semi-empirical calculations is of particular interest while it offers possibility quick assessment of performance of a propulsor composed of several well defined components. The results indicate the feasibility of modification of the propulsion system for the considered vehicle if all the existing circumstances are taken into account.
Spectral Response of Stationary Jack-Up Platforms Loaded by Sea Waves and Wind using Perturbation Method
Authors: Rozmarynowski Bogdan , Jesien Wojciech
Published: January 2022

The paper addresses non-linear vibrations of offshore jack-up drilling platforms loaded by sea waves and wind in their stationary condition using the perturbation method. Non-linearity of dynamic equations of motion for fixed offshore platforms yields from two factors. The first is load excitation generating non-linear velocity coupling in a dynamic system. This coupling is inherent in the modified Morison equation, involving the excitation function in the form of the sum of the inertial and velocity forces of sea waves, taking into account relative wave–structure kinematics. Moreover, the wind acting on the exciting side causes similar effects. The second source is the subsoil–structure interaction problem, modelled by a system of springs and dashpots that yields stochastic non-linearity of the dynamic system. The matrix equations of structural motion in FEM terms are set up. The perturbation method is adopted to determine the mechanical response of the system, making it possible to determine response spectra of the first and the second approximations for displacements and internal forces of the platform. The paper is the continuation of research detailed in the paper [1]. It is assumed, that the fluctuation parts of the dynamic loading forces are in line with the direction of sea wave propagation. Sea current and lift forces effects are neglected in this study. A numerical example refers to structural data of the Baltic drilling platform in the stationary configuration, i.e. when three legs support the deck above the seawater level.
Research on the Application of Cold Energy of Largescale Lng-Powered Container Ships to Refrigerated Containers
Authors: Li Yajing , Li Boyang , Deng Fang , Yang Qianqian , Zhang Baoshou
Published: January 2022

With the aim of considering the problem of excess fuel cold energy and excessive power consumption of refrigerated containers on large LNG-powered container ships, a new utilisation method using LNG-fuelled cold energy to cool refrigerated containers in cargo holds is proposed in this study, and the main structure of the cold storage in the method is modelled in three dimensions. Then, combined with the different conditions, 15 different combination schemes of high temperature cold storage and low temperature cold storage are designed to utilise the cold energy of LNG fuel, the exergy efficiency and cold energy utilisation rate calculation model of the system is established. The simulation tool ‘Aspen HYSYS’ is used to simulate and calculate the exergy efficiency and cold energy utilisation rate of the system under 15 combinations, verifying the feasibility of the scheme. According to the characteristics of such a ship’s cross-seasonal navigation routes and the number of refrigerated containers loaded in different ports, the combination schemes of the number of low-temperature cold storage and high-temperature cold storage are selected. Thus, the average exergy efficiency and cold energy utilisation rate of the whole line is obtained, which proves that LNG-powered container ships could effectively utilise the cold energy of LNG. By calculating the total electric energy consumed by refrigerated containers on the whole sailing route, before and after the adoption of the LNG cold energy method, it is found that the adoption of this new method can promote the realisation of energy saving and emission reduction of ships.
Experimental and Numerical Studies on the Shear Stability of Ship’s Thin Plates
Authors: Li Xiaowen , Zhu Zhaoiy , Chen Qinglin , Cai Yingqiang , Peng Miaojiao
Published: January 2022

The stability of thin plate plays an important role in the design and strength check of ship structure. In order to study the shear stability of ship’s thin plates, in-plane shear buckling tests were carried out using a picture frame fixture and a 3D full-field strain measurement system. The critical buckling load, full-field displacement/strain information, and load-displacement curve were obtained. The finite element model with the frame fixture was established based on ABAQUS, with the eigenvalue buckling analysis and nonlinear buckling analysis being carried out to obtain the mechanical response information of the buckling and post-buckling of the ship’s thin plate. The effectiveness and accuracy of the numerical simulation method are verified by comparing the numerical simulation with the experimental results. On this basis, the critical buckling load obtained by shear test, numerical simulation, and theoretical calculation is analyzed, and the function of the frame shear fixture and its influence on the critical buckling load are defined. The research in this paper provides a useful reference for the testing and simulation of in-plane shear stability of ship’s thin plates.
Prevention of Perpetrating the Criminal Offense of Theft-Theoretical and Practical Aspects
Authors: Mustafa Fat , Zejneli Ismail
Published: January 2022

The aim of this paper is to analyze the factors that influence the occurrence of the criminal offense of theft as well as the roles of all parties involved in its preventive activities.

Ownership creates rights and obligations, and it should serve the well-being of the individual and the community. No one can be deprived of, nor limited from property and the rights deriving from it, except when it comes to the public interest determined by law.

Belongings can be movable and real estate. The subject of the criminal offense of theft can be only related to movable items that have economic value and serve to human needs and not in cases when they are abandoned.

In the process of preventive fight against crime, it is of great importance to define explicitly and concretely the roles, the tasks, and the goals of certain subjects of preventive activities.
Performance-Based Rank and Remuneration University Policy for Increased Motivation and Quality
Authors: Kareva Veronika , Bexheti Abdylmenaf , Memedi Xhevair
Published: January 2022

Motivation plays an immense role and is one of the key factors for successful and qualitative performance in all spheres of personal and professional engagement of individuals. Therefore, educational institutions, including academia, pay special attention to finding tools for motivating students, but also for motivation of their academic staff. Increased motivation has shown to lead to better performance and better performance inevitably contributes to quality enhancement at both individual and institutional level.

The aim of this paper is to present an institutional Ranking and Remuneration (R&R) Policy based on Key Performance Indicators (KPIs) in four areas identified as the most crucial for successful operation of a higher education institution: teaching and learning, research, staff digital profile, service to society and project-based activities. Southeast European University (SEEU) in North Macedonia has developed KPIs in these four areas through an inclusive and transparent process based on its unique Total Quality Management (TQM) approach. The policy has been created after many consultations, trials and simulations and its main objective is to enhance institutional academic productivity and effectiveness through a human resource vibration that starts from individual evaluation, motivation and performance differentiation and leads to stimulation for achieving excellence. It is at an initial stage and if tested well in practice, it can serve as a model for other higher education institutions in the country and wider.
Assessment of Selected Municipalities’ Performance of Citizen-Centric Investment Planning, and Support for Youth Programming in Kosovo
Authors: Hajdari-Hajra Florentina , Binaku Artan
Published: January 2022

This paper aims to assess selected municipalities’ performance of citizen-centric investment planning, governance and transparency, financial management, and support for youth programming in Kosovo. In completing this assessment, the Municipal Performance Management System of the Ministry of Local Government Administration (MLGA) in Kosovo was utilized. Selected municipalities are based on the Municipal Performance Report of 2019. Eight from Albanian majority municipalities in the top ranking, and two municipalities with higher scores from minority municipalities. The paper aims to highlight three critical local government issues in ten selected municipalities: 1) The way of governing municipalities assessed according to the applicable legislation and 2) The provision of services in terms of quantity and quality, when possible and 3) Youth-oriented capacity building for municipal staff for better youth services (Ministry of Local Government Administration, 2019). The paper will produce findings on capacity building needs and support needed on youth and citizen-centric investment and capacity building needs. A non-exhaustive list of needed capacities is produced, while the findings from the evaluation will be used to develop a capacity-building manual for municipal staff on youth-oriented municipal services.