bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengaruh Regulasi Diri dan Lingkungan Belajar terhadap Prestasi Belajar Matematika Siswa
Authors: Baso Akbar  , Thamrin Tayeb  , Ahmad Afiif  , Munirah  , Munawarah  
Published: July 2022

Tujuan penelitian ini ialah untuk mengetahui gambaran regulasi diri pada mata pelajaran matematika, gambaran lingkungan belajar, gambaran prestasi belajar matematika siswa, dan pengaruh regulasi diri dan lingkungan belajar terhadap prestasi belajar matematika siswa kelas VIII MTsN Model Makassar. Penelitian ini merupakan penelitian kuantitatif dengan menggunakan desain Ex-post facto. Populasi dalam penelitian ini adalah seluruh siswa kelas VIII MTsN Model Makassar yang berjumlah 386 orang, dengan jumlah sampel 97 orang siswa. Penelitian ini menggunakan instrumen berupa skala regulasi diri, angket lingkungan belajar dan dokumentasi serta menggunakan teknik analisis analisis statistik deskriptif dan analisis statistik inferensial dengan teknik analisis Regresi Linier Berganda. Hasil penelitian menunjukkan adanya pengaruh regulasi diri terhadap prestasi belajar matematika siswa kelas VIII MTsN Model Makassar, adanya pengaruh lingkungan belajar terhadap prestasi belajar matematika siswa kelas VIII MTsN Model Makassar dan adanya pengaruh secara simultan tentang regulasi diri dan lingkungan belajar terhadap prestasi belajar matematika siswa kelas VIII MTsN Model Makassar. Hasil analisis statistik deskriptif diperoleh rata-rata regulasi diri siswa sebesar 74,69 berada pada kategori sedang, lingkungan belajar sebesar 9,56 berada pada kategori sedang dan prestasi belajar matematika siswa sebesar 78,29 berada pada kategori sedang. Berdasarkan hasil pengujian statistik diperoleh persamaan regresi Y = 72,144 + 0,067X1+ 0,123X2. Uji hipotesis menunjukkan Fhitung >Ftabel (6,803 > 3,94), sehingga H0 ditolak. Dengan ditolaknya H0 maka H1 diterima. Dengan demikian dapat disimpulkan bahwa regulasi diri dan lingkungan belajar berpengaruh terhadap prestasi belajar matematika siswa.
Pengembangan Bahan Ajar Berbasis Aplikasi Kvisoft Flipbook Menggunakan Model Pembelajaran Problem Based Learning dengan Pendekatan Saintifik
Authors: Damayanti Annisa , Nursalam  
Published: July 2022

Tujuan penelitian ini adalah untuk mengetahui proses pengembangan Bahan Ajar Berbasis Aplikasi Kvisoft Flipbook Menggunakan Model Pembelajaran Problem Based Learning dengan Pendekatan Saintifik kelas X SMAN 3 Makassar yang valid, praktis, dan efektif. Jenis penelitian yang dilakukan adalah penelitian dan pengembangan (Research And Developement) yang mengacu pada model pengembangan ADDIE yang terdiri dari 5 tahapan, meliputi: Analysis, Design, Developement, Implementasion, dan Evaluation. Bahan Ajar Berbasis Aplikasi Kvisoft Flipbook Menggunakan Model Pembelajaran Problem Based Learning dengan Pendekatan Saintifik ini dikembangkan dengan berbantuan aplikasi Kvisoft Flipbook. Adapun subjek penelitian ini adalah peserta didik kelas X SMAN 3 Makassar. Instrumen yang digunakan dalam penelitian ini adalah lembar validasi, lembar obserbasi keterlaksanaan pembelajaran, angket respon guru dan angket respon peserta didik, lembar observasi kemampuan guru mengelola pembelajaran, lembar aktivitas peserta didik, dan tes hasil belajar. Berdasarkan hasil validasi diperoleh rata-rata sebesar 3,81 (sangat valid). praktis rata-rata lembar obserbasi keterlaksanaan pembelajaran sebesar 1,68 dengan kategori terlaksana seluruhnya, analisis angket respon guru sebesar 89,72% dengan kategori sangat positif dan analisis angket respon peserta didik sebesar 88,58% dengan kategori sangat positif. Efektif, dengan rata-rata persentase lembar observasi kemampuan guru mengelola pembelajaran sebesar 4,375, rata-rata persentase lembar aktivitas peserta didik adalah 81%, dan persentase ketuntasan belajar peserta didik sebesar 80%. Sehingga dapat disimpulkan bahwa penerapan dan pengembangan Bahan Ajar Berbasis Aplikasi Kvisoft Flipbook Menggunakan Model Pembelajaran Problem Based Learning dengan Pendekatan Saintifik kelas X SMAN 3 Makassar telah memenuhi kategori valid, praktis, dan efektif.
Noise Robust Illumination Invariant Face Recognition Via Bivariate Wavelet Shrinkage in Logarithm Domain
Authors: Chen Guang Yi , Krzyżak Adam , Duda Piotr , Cader Andrzej 
Published: July 2022

Abstract
Recognizing faces under various lighting conditions is a challenging problem in artificial intelligence and applications. In this paper we describe a new face recognition algorithm which is invariant to illumination. We first convert image files to the logarithm domain and then we implement them using the dual-tree complex wavelet transform (DTCWT) which yields images approximately invariant to changes in illumination change. We classify the images by the collaborative representation-based classifier (CRC). We also perform the following sub-band transformations: (i) we set the approximation sub-band to zero if the noise standard deviation is greater than 5; (ii) we then threshold the two highest frequency wavelet sub-bands using bivariate wavelet shrinkage. (iii) otherwise, we set these two highest frequency wavelet sub-bands to zero. On obtained images we perform the inverse DTCWT which results in illumination invariant face images. The proposed method is strongly robust to Gaussian white noise. Experimental results show that our proposed algorithm outperforms several existing methods on the Extended Yale Face Database B and the CMU-PIE face database.
Innovative Determinants of the Investment Attractiveness of a Country: The Case of Ukraine
Authors: Gavrysh Oleg , Kukharuk Anna , Gavrysh Iuliia 
Published: July 2022

Abstract
The study is devoted to the peculiarities of the investment attractiveness of a country in conditions of uncertainty. The article generalises the scientific approaches to the definition of investment attractiveness. The authors summarise the results of the international ranking of countries by the level of investment attractiveness and define the important role of innovation in ensuring a favourable investment climate. The article considers the peculiarities of the formation of investment attractiveness in Ukraine and summarises the priorities for the implementation of an innovation strategy, which will contribute to the possibility of post-crisis recovery. A promising area of further research is the evaluation of the effectiveness of Ukraine’s international partnership for the implementation of joint innovation projects in the direction of Industry 4.0.
Motives for the Usage of Collaborative Fashion Consumption Online Platforms
Authors: Michalak Szymon , Bartkowiak Paweł , Ankiel Magdalena , Olejniczak Tomasz , Stachowiak-Krzyżan Magda 
Published: July 2022

Abstract
In recent years, there has been a noticeable increase in consumer interest in participating in the sharing economy. One of the markets in which this is particularly visible is the clothing market. Dynamic technological progress and the virtualisation of life have contributed to the creation of applications with which consumers can buy, exchange or borrow clothes. The use of this type of application is treated as a manifestation of sustainable consumption. The main aim of the article is to determine the influence of selected motives on the attitudes towards these applications and their use. The article discusses the results of the research conducted in 2021 on a sample of 412 respondents. Confirmatory factor analysis and structural equation modelling were used in the process of analysing the results. The research results suggest that the most important motives for using the discussed applications were economic and utility, with their impact on attitudes towards these applications and the willingness to use them confirmed. Social motives turned out to be the lowest-rated group of determinants. Moreover, their negative impact on both attitudes towards the application and the willingness to use it was confirmed. Ecological motives turned out to be relatively important determinants of using the discussed solutions. Their influence on attitudes towards the application and consumption behaviour was confirmed.
Sector of Public Relations Agencies in Poland: Its State and Perspectives After the Covid-19 Pandemic
Authors: Tworzydło Dariusz , Szuba Przemysław 
Published: July 2022

Abstract
The article is based on the results of research on the sector of public relation (PR) agencies in Poland, which is an important part of the entire PR industry. The purpose of this article is to determine the potential of this sector in the post-pandemic period in the light of research results. The analysis focused on key parameters that influence the condition of the PR agencies sector, such as the number of agencies, type of activity, legal form, territorial distribution and financial indicators. Desk research (qualitative methodology) was used as the main research technique. The research was conducted on the basis of available databases and own datasets, such as lists of PR agencies, data from the Central Statistical Office (GUS), records stored in the Bisnode database, data from PR agencies’ websites and others. At a further stage, quantitative analysis of the collected statistical data was applied. The article illustrates the role of PR agencies in terms of the entire PR industry and presents a scheme for building a sampling frame on this type of companies.
Liquid Biopsy — A Novel Diagnostic Tool for Management of Early-Stage Peripheral Lung Cancer
Authors: Mikilps-Mikgelbs Rihards , Pūpola Dārta , Antone Elīna , Kiršners Arnis , Luguzis Artis , Salna Edgars , Krams Alvils , Ērglis Andrejs 
Published: July 2022

Abstract
Lung cancer is the leading cause of cancer-related mortality worldwide. Early diagnosis of lung cancer is hampered by the absence of specific symptoms and the lack of a widely recognised cost-effective screening programme. Acquisition of a tumour tissue sample for morphological and molecular genetic examination is of paramount importance for cancer diagnosis. We describe diagnostic challenges for early-stage lung cancer and their possible current solutions. Liquid biopsy is a relatively new technology that was developed for evaluation of tumour-related circulating genetic material. Recent achievements in data processing provide more opportunities for wider implementation of Next Generation Sequencing (NGS) in clinical practice. This article summarises available data on the current and future role of liquid biopsy in the management of lung cancer. We also present an ongoing Latvian lung cancer study that focuses on integration of liquid biopsy with comprehensive clinical data utilising advantages of information technologies.
Aerosol and Droplet Generation During Intubation and Normal Breathing: A Simulation Study
Authors: Kalniņš Edvards , Kazūne Sigita 
Published: July 2022

Abstract
The recent COVID-19 pandemic has made important changes to the everyday practice of anaesthetists. Current research has shown that the virus spreads via respiratory droplets and aerosolisation. The aim of this study was to examine the extent of contact contamination, droplet spread and aerosolisation, which may occur with normal breathing and intubation in a mannequin study. In the first experiment, an Ambu bag was attached to the simulation mannequin’s trachea and an atomiser device was placed into the mannequin’s pharynx. This model simulated normal ventilation as 0.5 ml of luminescent fluid was sprayed through the atomiser. In the second experiment, the mannequin was intubated with a videolaryngoscope while spraying 0.5 ml of luminescent fluid through the atomiser, after which the laryngoscope was removed. The spread of the luminescent aerosol cloud after three full breaths, droplet spread and contact contamination were visualised using ultraviolet light. The extent of spread was evaluated using a 4-point Likert scale (0 to 3) by two observers. Each of the experiments was repeated five times. For the first experiment, aerosol formation, droplet spread and contact contamination were 2.5 (2–3), 1 (0–1), 0 (0–1) points. In the second experiment, aerosol formation, droplet spread and contact contamination were 0.5 (0–1), 1 (0–1), 3 (2–3) points, accordingly. Noticeable contact contamination occurs during laryngoscopy and removal of the laryngoscope, whereas droplet contamination with laryngoscopy and normal breathing is minimal. Normal breathing leads to significant aerosol formation.
Effect of a Modified AN69ST Membrane on the Clinical Course of Adult Patients with Bacterial Septic Shock
Authors: Bogorodickis Arturs , Liguts Valdis 
Published: July 2022

Abstract
Sepsis is among the leading causes of mortality globally. Blood purification techniques are evolving in sepsis therapy, aiming at pathogenic antigens and host cytokines. The aim of this study was to determine whether continuous renal replacement therapy (CRRT) with modified AN69ST membrane, brand name oXiris, improves the clinical course of adult patients with septic shock. The study had a retrospective, longitudinal, propensity score matching (PSM) design with two groups: treatment — CRRT started with oXiris, control — used ST150 filters only. Data from 636 patients were analysed. The oXiris and control groups included 40 and 57 patients, respectively. PSM left 19 patients in each group. Ten of 19 patients died in the oXiris group. Survival, CRRT duration, intensive care unit or hospital length of stay did not differ between the groups. The oX-iris group had a tendency for lower mortality in Gram-negative infection cases, though not statistically significant. During the first 72h of CRRT, both groups had improvement in noradrenaline requirement, arterial pressure and blood lactate. However, with oXiris treatment, increase of arterial pressure (TA) was greater during CRRT during the first 24h and there was a more significant decrease of noradrenaline infusion and lactate during the first 72 h. We concluded that in septic shock early CRRT with oXiris may be beneficial and that there might be decreased hospital mortality in the case of Gram-negative infection. Further larger studies are required.
Prediction of the Difficult Laryngoscopy with Ultrasound Measurements of Hyomental Distance
Authors: Glāzniece-Kagane Zane , Bērziņš Arvīds , Kagans Aleksandrs , Grigorjevs Sergejs , Ozoliņa Agnese , Mamaja Biruta 
Published: July 2022

Abstract
Ultrasound measurement of hyomental distance is promising as a predictor for difficult laryngoscopy in cases of difficult airway management. The aim of the study was to evaluate the prognostic value of ultrasound measurement of hyomental distance (HMD) for prediction of difficult laryngoscopy. Hyomental distance was sonographically measured in neutral (HMDn) and extreme head extension (HMDe) positions for fifty-six patients scheduled for elective surgery requiring tracheal intubation. Then the hyomental distance ratio (HMDR) was calculated. According to presence of difficult laryngoscopy assessed by the Cormack–Lehane (CL) score, patients were divided into a difficult laryngoscopy group (DL, n = 15) and easy laryngoscopy group (EL, n = 41). We calculated the sensitivity and specificity of HMDn, HMDe, and HMDR for difficult laryngoscopy. DL was present in 15 (27%) patients. We found a significant intergroup difference in HMDR between the DL and EL groups (1.12 ± 0.04 vs. 1.24 ± 0.06, respectively; p < 0.001). In contrast, we were not able to find a significant difference for HMDn and HMDr. HMDR had the highest sensitivity 86.7% and specificity 85.4% (p < 0.01) to predict difficult laryngoscopy, where the area under the curve was 0.939; p < 0.01 for HDMR < 1.2 cm. Moreover, we found that difficult laryngoscopy was associated with higher body mass index (BMI), with higher values in the DL group compared to EL patients (34.3 ± 9.1 vs. 28.5 ± 5.7 kg/m2, respectively; p = 0.035). HMDR < 1.2 cm measured by ultrasound might have a good predictive value for prediction of difficult laryngoscopy.
Management of Proximal Femoral Fractures
Authors: Viru Mihkel , Juhanson Reile , Värsi Fred , Linde Indrek , Kiisk Karl , Rokk Alar , Kolk Helgi , Toompere Karolin , Karjagin Juri 
Published: July 2022

Abstract
Proximal femoral fractures are typical injuries in the elderly population. We conducted a retrospective study to estimate postoperative mortality and risk factors affecting patient outcomes at Tartu University Hospital. We retrospectively evaluated patients who were hospitalised in 2017 with a proximal femoral fracture diagnosis and who were operated (osteosynthesis, partial and total hip replacement). In the study we included 313 patients of 361 (219 women and 94 men). We did not find statistically significant difference between the choice of anaesthesia and mortality or between the time getting to the OR and mortality. Cognitive impairment and postoperative delirium were significantly associated with increased one-year mortality was 37% (p < 0.05). In the group of the patients who did not have postoperative delirium the overall mortality was 15%. 23% of the patients had preoperatively cognitive impairment, and 45.8% of them died in the first year after the operation (p < 0.001). Mortality of patients who did not have cognitive impairment was 14%. As the sample group of patients included in the study was small, further investigation should encompass a larger group in the future.
Assessment of Anaesthesia Nurses’ Attitude to Teamwork
Authors: Kairytė Greta , Gudaitytė Jūratė , Šimonytė Lina , Pikčiūnaitė Evelina , Macas Andrius 
Published: July 2022

Abstract
Teamwork is one of the most important aspects in medicine today. It is known that the operating room is the place where communication is most needed between doctors and other medical staff. The purpose of this study was to analyse the view of nurses towards collaboration between the physician and nurse in an anaesthesiology department depending on education and work experience. The study was conducted in three Lithuanian hospitals. The questionnaires “Jefferson scale of attitudes toward physician–nurse collaboration” and “Barriers of communication between doctors and nurses” were used. The statements of the questionnaires were rated using the Likert scale; the attitude was evaluated as positive when the assessment was more than median (2.5). The results were processed by SPSS Statistics 23.0 pack, using descriptive statistics and ANOVA, with statistically significant results when p < 0.05. A total of 138 nurses participated in this study, all female, aged 43.00 ± 12.48 years and with different education levels. According to the nurses, the most important aspects of teamwork were dominance of physicians (3.08 ± 0.65), nurse’s autonomy (3.46 ± 0.54), patient care (3.33 ± 0.56) and sharing knowledge and cooperation (3.33 ± 0.47) (F = 12.47; p < 0.001). Patient care and autonomy of nurses were most important aspects for nurses with higher education and short job experience, and physician dominance was the most important for nurses with a longer job experience and lower education level. Barriers to cooperation arising from environmental factors are the greatest drivers for ineffective teamwork.
“Vamos fazer-nos ouvir”
Authors: Rios Clementina , Neilson Alison Laurie , Menezes Isabel 
Published: July 2022

Este estudo visa compreender a potencialidade de dispositivos participativos no ativismo de crianças, procurando perceber como problematizam e como intervêm em questões ambientais da floresta local. Envolveu, durante três meses consecutivos, 22 crianças com dez anos do 4.º ano do 1.º ciclo do ensino básico em momentos de participação, numa lógica de ação-reflexão. Com base numa abordagem de perfil comunitário, as crianças investigaram a floresta local e foram implicadas num processo de exploração dos problemas e de identificação de soluções para as questões que identificaram como pertinentes. Os dados foram recolhidos através de vários dispositivos: diários de bordo, desenhos e projetos elaborados pelas crianças; fotografias, vídeos do processo, e notas de terreno da investigadora contendo registos de discussões conjuntas com as crianças e de conversas informais com familiares; e entrevistas semiestruturadas com as professoras. A análise revela as crianças como agentes ambientais com práticas ativistas, por exemplo, ações coletivas que desenvolveram na floresta, a solicitação de parcerias na comunidade para a resolução de problemas ambientais locais e a organização de uma manifestação na comunidade, para se fazerem ouvir. A aprendizagem na floresta não só promoveu uma tomada de consciência por parte das crianças, designadamente a respeito do impacto da visão dominante antropocêntrica na sustentabilidade, como também as motivou a pôr em prática o seu ativismo ambiental.

Recebido: 21/2/2022
Aceite: 30/5/2022
Rancang Bangun Alat Pendeteksi Suhu Tubuh Untuk Mencegah Penularan Covid-19 dengan Sensor Infrared Berbasis Arduino Uno
Authors: Wahdini Yulia , Firmawati Nini 
Published: July 2022

COVID-19 menjadi pandemi yang meresah, dikarena penularannya sangat mudahÂ dan belum ditemukan obatnya, diperlukan pencegahan dengan mengenali tanda yang pada umumnya pertama kali muncul adalah suhu tubuh yang meningkat yaitu > 37,5 ï‚°C sehingga, diperlukan alat bantu dalam mengukur suhu tubuh untuk mencegah penularan COVID-19. Telah dibuat rancang bangun alatÂ yang bekerja dengan pengindraan radiasi infrared yang dipancarkan objek, dideteksi sensor infrared MLX90614 diubah menjadi sinyal listrik. Sinyal kemudian diolah mikrokontroler pada Arduino Uno dengan bahasa pemograman IDE Arduino, keluarannya berupa nilai temperatur yang ditampilkan pada LCD (liquid crystal dislay) dan notifikasi dari buzzer jika nilai termperatur >=37,5 C serta membuka pintu secara otomatis jika nilai termperatur < 37,5 C.
Rancang Bangun Alat Ukur Konsentrasi Mikroplastik dengan Cladding Gelatin berbasis Sensor Serat Optik dan Mikrokontroler
Authors: Sundari Diah , Harmadi Harmadi 
Published: July 2022

TelahÂ dirancang alat ukur konsentrasi mikroplastik dengan cladding gelatin berbasis sensor serat optik evanescent. Mikropastik yang digunakan pada penelitian ini adalah resin akrilik dengan variasi konsentrasi sebesar 0 ml, 25 ml, 50 ml, 75 ml, dan 100 ml. Cladding serat optik dikupas dan diganti dengan menggunakan gelatin. Variasi pengupasan dilakukan sepanjang 1 cm, 2 cm, dan 3 cm. Laser dioda digunakan sebagai sumber cahaya, serat optik sebagai transmisi cahaya, fotodioda digunakan sebagai detektor cahaya pada penelitian ini. Mikrokontroler Arduino Uno R3 digunakan sebagai pengolah sinyal dan LCD digunakan sebagai penampil hasil pengukuran konsentrasi. Konsentrasi diukur berdasarkan tegangan fotodioda. Hasil karakterisasi menunjukkan bahwa pengupasan 1 cm merupakan pengupasan yang paling optimum untuk pengukuran konsentrasi mikroplastik pada larutan resin akrilik dengan koefisien determinasi sebesar =0,9857. Persentase kesalahan rata-rata alat ukur konsentrasi mikroplastik yang dirancang sebesar 1,902 %.