bluuebunny/crossref_metadata_2025_split huggingface dataset:
Keefektifan Model Pembelajaran Realistic Mathematics Education (RME) dan Pembelajaran Kooperatif Tipe Student Teams Achievement Division (STAD) Berbantu LKS untuk Meningkatkan Pemahaman Konsep Matematis Siswa Kelas VII
Authors: Ani Isna Shofa , Supandi Supandi , Ariyanto Lilik 
Published: December 2019

Tujuan penelitian ini adalah untuk mengetahui keefektifan antara penggunaan model Pembelajaran Realistic Mathematisc Education danStudent Teams Achievement Division pada materi bangun datar segitiga dan segi empat terhadap kemampuan pemahaman konsep siswa.Populasi penelitian ini adalah siswa kelas VII SMP Kesatrian 2 Semarang tahun ajaran 2018/2019. Sampel penelitian ini yaitu kelas VIIA, VIIC dan VIID dengan menggunakan teknik cluster random sampling. Data penelitian diperoleh dengan teknik wawancara, metode dokumentasi dan metode tes yang kemudian dianalisis dengan uji ketuntasan belajar individu dan klasikal, uji regresi linear sederhana, uji anava satu jalur, sertauji scheffe.Berdasarkan hasil penelitian disimpulkan bahwa pembelajaran yang menggunakan model Realistic Mathematics Educationdan Student Teams Achievement Division tidak efektif, karena hanya memenuhi dua dari tiga indikator efektivitas,sebagai berikut: (1) Rata-rata hasil belajar siswa yang mendapat perlakuan model Realistic Mathematics Education danStudent Teams Achievement Divisionbelum mencapai ketuntasan belajar secara individual maupun klasikal. (2) Terdapat pengaruh positif antara keaktifan terhadap kemampuan pemahaman konsep siswa pada model Realistic Mathematics Education dan Student Teams Achievement Division. (3) Terdapat perbedaan kemampuan pemahaman konsep siswa yang menggunakan model Realistic Mathematics Education, Student Teams Achievement Division konvensional. (4) Kemampuan pemahaman konsep siswa yang menggunakan model Realistic Mathematics Education lebih baik daripada konvensional. (5) Kemampuan pemahaman konsep siswa yang menggunakan model Student Teams Achievement Division lebih baik daripada konvensional. (6) Kemampuan pemahaman konsep siswa yang menggunakan model Realistic Mathematics Education lebih baik dari Student Teams Achievement Division.
Analisis Kemampuan Berpikir Kritis Siswa SMP Kelas VIII dalam Menyelesaikan Soal Matematika pada Materi Aljabar
Authors: Pramuditya Lalu Calvian , Supandi Supandi , Nugroho Aryo Andri 
Published: December 2019

Kemampuan berpikir kritis matematika merupakan salah satu kemampuan yang sangat penting bagi siswa. Penelitian ini bertujuan untukmengetahui gambaran kemampuan berpikir kritis siswa SMP ditinjau dari kemampuan pemecahan masalah matematika.Jenis penelitian yang digunakan adalah Diskriptif dengan subjek penelitian minimal satu siswa kelas VIII-B dari SMP Kesatrian 2 Semarang dari masing-masing kemampuan matematis tinggi, sedang, rendah. Teknik pengumpulan data yang digunakan adalah observasi, tes, dan dokumentasi. Keabsahan data menggunakan triangulais metode dengan membandingkan data tes yang dikerjakan oleh siswa yang mempunyai kemampuan yang berbeda-beda. Teknik analisis data dilakukan dengan tahap reduksi data, penyajian data, dan penarikan kesimpulan. Hasil dari penelitian ini adalah a) untuk siswa dengan kemampuan matematis tinggi memiliki kemampuan berpikir kritis sangat baik karena memenuhi semua indikator FRISCO. b) untuk siswa dengan kemampuan matematis sedang memiliki kemampuan berpikir kritis baik karena hanya memenuhi beberapa indikator FRISCO. c) untuk siswa dengan kemampuan matematis rendah memiliki kemampuan berpikir kritis yang rendah karena banyak indikator FRISCO yang tidak terpenuhi. Penyebab kurangnya berpikir kritis pada siswa adalah kurangnya pemahaman materi, keaktifan dalam bertanya kurang, serta kurangnya latihan soal dengan tingkat kesulitan yang berbeda
Penggunaan Structural Equation Modeling (SEM) untuk Mengetahui Pengaruh Kebiasaan Mengakses Media Sosial terhadap Minat Belajar Siswa
Authors: Praditasari Elfitri Lidwina , Handayanto Agung , Wulandari Dewi 
Published: December 2019

Minat belajar merupakan hal yang memiliki peran penting dalam tinggi rendahnya hasil belajar. Penelitian ini bertujuan untuk mengetahui pengaruh kecanduan mengakses media sosial terhadap minat belajar siswa SMA Negeri 11 Semarang. Mengakses media sosial merupakan salah satu dari sekian banyak kemungkinan yang dapat mempengaruhi minat belajar siswa. Metode yang digunakan dalam penelitian ini adalah Structural Equation Modeling. Variabel laten dalam penelitian ini adalah kecanduan media sosial (x) dan minat belajar (y) sedangkan variabel teramati dalam penelitian ini adalah semua indikator dari masing-masing variabel laten yang terdirin dari 8 variabel teramati untuk variabel laten kecanduan media sosial (x) dan 6 variabel teramati untuk variabel laten minat belajar (y). Sehingga total variabel laten adalah 14 sehingga jumlah sampel minimal yang harus peneliti ambil adalah 14 x 10 = 140 sampel. Pengambilan sampel menggunakan Teknik simple random samplingyang melibatkan 202 siswa sebagai sampel, jumlah ini sudah memenuhi minimal jumlah sampel yang peneliti tentukan. Dalam penelitian ini diperoleh model yang cukup baik dilihat dari setiap uji kecocokan kecocokan model pengukuran dan Uji Kecocokan Model Struktural. Dalam penelitian ini peneliti menghapus 3 variabel teramati. Dari hasil estimasi disimpulkan bahwa kecanduan media sosial memiliki pengaruh negatif yang tidak signifikan terhadap minat belajar siswa SMA Negeri 11 Semarang. Dimana semakin tinggi siswa kecanduan mengakses media sosial akan berpengaruh pada rendahnya minat belajar siswa, begitupun sebaliknya.
Pengembangan Video Pembelajaran Matematika melalui Model Pembelajaran Flipped Classroom di Sekolah Menengah Kejuruan
Authors: Yanti Yenni Asma , Buchori Achmad , Nugroho Aryo Andri 
Published: December 2019

Penelitian ini bertujuan untuk mengembangkan media berupa video pembelajaran matematika melalui model pembelajaran flipped classroom di Sekolah Menengah Kejuruan. Luaran yang dihasilkan dalam penelitian ini adalah berupa produk video pembelajaran yang valid , praktis dan efektif untuk meningkatkan hasil belajar siswa. Metode penelitian yang digunakan adalah penelitian Research and Development. Pada penelitian ini menggunakan model ADDIE ( Analysis , Design ,Development,Implementation,Evaluation ). Pengembangan video pembelajaran matematika melalui model pembelajaran flipped classroom di Sekolah Menengah Kejuruan teruji valid berdasarkan ahli media sebesar 82%, oleh ahli materi sebesar 79% , dan valid oleh ahli desain pembelajaran sebesar 81%. Media video pembelajaran matematika tersebut juga praktis untuk digunakan dilihat dari respon siswa sebesar 81%. Media video pembelajaran efektif digunakan dilihat dari perbedaan hasil belajar kelas eksperimen dan kelas kontrol yang ditunjukkan dengan rata-rata 82,93 pada kelas eksperimen dan 59,48 pada kelas kontrol dan diperoleh variabel keaktifan siswa berpengaruh positif terhadap hasil belajar siswa dengan persamaan regresi Ŷ = 73,86 + 4,45 X dan pengaruhnya sebesar 43%, serta ditunjukkan dengan uji ketuntasan dengan rata – rata 96,77 artinya telah mencapai ketuntasan. Berdasarkan data tersebut media video pembeajaran matematika melalui model pembelajaranflipped classroom valid, praktis , dan efektif.
Justification of Safety of Homeopathic Medicines in a Registration Dossier
Authors: Subaev R. D. , Engalycheva G. N. , Goryachev D. V. 
Published: December 2019

Regulatory approaches to assessing the safety of homeopathic medicines in the Russian Federation and abroad are formed in accordance with regulatory acts, national and international rules and guidelines. Scientific literature is particularly important for justification of safety of homeopathic medicines. The purpose of this study was to determine the requirements and procedure for presenting justification of homeopathic medicines safety in the registration dossier in accordance with the documents of the Eurasian Economic Union and the European Union. According to the current Russian and foreign regulatory approaches the safety may be justified by scientific literature data on homeopathic use and by substantiation of the dosage in the case of medicines that have long experience of safe use and those that are authorized under a simplified procedure based on a dossier with a product instruction that does not establish indications for use. In both cases, there is no need to provide the results of preclinical or clinical studies of the drug. This approach reflects specific features of homeopathic medicines. An objective criterion of the safety of homeopathic medicines is the assessment of the dosage of active substances, taking into account the «first safe dilution» of homeopathic substances. A formal safety justification using registration data for similar drugs or additional information on the use of these pharmaceutical substances in homeopathy is also possible, but may be insufficient. The completeness and proper documentation of bibliographic data are the main criteria for an appropriate rationale for the safety of homeopathic products.
PROCESS OF LOGISTIC SERVICING OF CONSUMERS
Authors: А. ОVCHARENKO  
Published: December 2019

Under current conditions, the satisfaction of the end user depends on the level of service at each stage of the process of material flows movement from the manufacturer to the consumer. In order to ensure the quality of logistics services, it is necessary to analyze the components of the logistics service process. The article deals with the existing approaches to the definition of what the process of customer logistic servicing involves. The lack of orderliness of the performed work is established; not in all cases there is a delineation of work according to certain criteria (the degree of consumer participation, the nature of performance, etc.); there is an overlap of production and management work.In terms of logistics, the customer servicing is aimed at satisfying their expectations of time and place of supply of the ordered products using all available forms of logistics.The process of customer logistic servicing is justified using the principles of the process approach, in particular, the structural analysis methodology IDEF0; the processes are differentiated according to the places where they are executed (directly at the service of the orders of the consumer, in the warehouse, during transportation). The «Input» to the process of logistics customer service is a set of information, material, technological, personnel and financial resources. The «Output» is the result indicators of service performance for consumers and enterprises. These are provision of logistic services, improving the quality of logistics servicing, establishing partnerships, creating additional competitive advantages, optimizing logistics costs.In general, the process of logistic servicing includes four main subprocesses: customer orders servicing (initiation and its organization); warehouse servicing; transport and logistic servicing; logistic servicing of customer orders (maintenance, adjustment and documentation).The proposed theoretical and methodological provisions for establishing the composition of the process of customer logistic servicing are the basis for substantiation and development of methods and algorithms for their management.
Psycholinguistic Aspects of Humanitarian Component of Cybersecurity
Authors: Крилова-Грек Юлія 
Published: December 2019

Introduction. The paper focuses on language means exploited by social engineers in their activities in terms of humanitarian aspects of cybersecurity. The goal of this research is to analyze the methods and techniques employed by social engineers in their malicious activity and its features from a psycholinguistic point of view for further development of counteraction mechanisms.
Methods. To obtain results we used the following methods: primary source analysis, analysis of spoken and written speech and speech products, and intent analysis.
Results. The activity theory has been successfully applied to consider the key features of social engineers’ work. On the base of AT we presented a three-component model which we may consider only in the case of a social engineer’s successful attack (action).
Based on the analysis of the sources, we distinguished the types of spoken and written communication actions (these types correspond to direct and indirect actions), used by social engineers to affect the cognitive processes for retrieving “sensitive data” and confidential information. Besides, we also categorized psychological and language means, which social engineers evidently apply in their activities. We stress that in most cases social engineers’ activities are aimed at a) affecting the person’s emotions and feelings; b) blocking rational and critical thinking; c) manipulating moral and ethic values, and d) using positive incentives that have an interest to a user. Taking into account the abovementioned types of communication, psychological and language means, we systematized and described the general techniques of using oral and written forms of language and technologies: 1) techniques related to the use of spoken speech; 2) techniques related to the use of written speech; 3) techniques related to the use of USB flash drives, applications, and program software.
The findings are applicable for developing a mechanism to counter social engineers’ attacks and contribute to improving the level of cyber literacy.
Narrative Indicators of Adolescents’ Maladaptive Cognitive Schemas
Authors: Лозова Ольга , Литвиненко Олена 
Published: December 2019

Introduction. The article presents the results of a study of adolescents` personal narratives. The general aim of the study was to identify narrative indicators of adolescents’ maladaptive cognitive schemas. This aim was achieved by virtue of realization of such tasks as: to identify the specific text categories (indicators) that indicate the maladaptive schemas and to determine the predictive power of each category (indicator). In the course of theoretical analysis, there were systematized the approaches to the understanding of personal narratives and “self-texts”. There also was generalized the concept of maladaptive cognitive schemas, and were defined textual categories which can be reflected in the narratives of people who have certain maladaptive schemas.
Methods. The methods of the empirical study were Dusseldorf Illustrated Schema Questionnaire for Children and the content-analysis of personal narratives. Statistical processing of the obtained data and determination of the predictive power of each narrative category were performed with the help of the method of recursive division trees.
Results. As a result of the empirical study was it was found that certain categories in the personal narratives of adolescents allow us to predict the manifestation of individual maladaptive schemas. There were identified narrative indicators, able to predict fourteen of the eighteen schemas. It was determined that the knowledge of narrative indicators of maladaptive cognitive schemas can be used within the psychological counseling and therapy at the stage of gathering primary information, as well as in the context of purposeful psychological impact.
Conclusions. There were described the topical prospects for further scientific development of the problem, which were to expand the categorical structure of content analysis, which would allow to find indicators of four schemas that remain unclear, as well as to widen the age range of respondents and to test the hypothesis about the existence of a link between the personal narratives of adults and their maladaptive schemas. There was made an assumption that modification of a personal narrative can accelerate therapeutic work aimed at eliminating the negative impact of maladaptive schemas on a person's life.
LA VITA CRISTIANA COME REALIZZAZIONE DELLA VERITÀ
Authors: Hajduk Ryszard , Kopiec Maksym Adam 
Published: December 2019

In un’epoca che mette in discussione l’esistenza della verità oggettiva e la possibilità di conoscerla, la Chiesa dice al mondo la verità che deriva dal Logos divino. Questa è la verità sull’amore di Dio che appare pienamente nella persona del Figlio di Dio, Gesù Cristo. Egli incarna la verità su Dio che è amore e rivela anche la verità sull’uomo, sulla sua chiamata e sul suo destino. Alla luce della verità di Dio, l’uomo può guardare a se stesso con amore e realizzarsi nell’amore, essendo creato a immagine e somiglianza di Dio. La verità proclamata dal cristianesimo è di altissimo livello, tenendo conto della sacralità e dignità di ogni essere umano. Essa aiuta le persone a usare correttamente la libertà che hanno. È la base per la creazione di strutture sociali che supportano lo sviluppo umano integrale e la costruzione di relazioni interpersonali sane. Non consente all’uomo di essere subordinato agli indicatori economici, né di essere strumentalizzato in vista del progresso scientifico e tecnico. A causa della verità oggettiva, anche le norme etiche ottengono la loro base non negoziabile e la loro giustificazione più profonda. Solo allora le norme etiche possono regolare, l’ars vivendi degli individui, il funzionamento dei fattori sociali, aiutando a risolvere problemi che appaiono nella vita sociale e politica, nonché negli affari e nell’economia.
Age-related morphology and function of human arterial endothelial cells
Authors: Lau S. , Rangarajan R. , Krüger-Genge A. , Braune S. , Küpper J.-H. , Lendlein A. , Jung F. 
Published: December 2019

Endothelialization of cardiovascular implants is regarded as a promising strategy for long-term compatibility. While umbilical vein endothelial cells are typically applied in research, human arterial endothelial cells (HAEC) from elderly donors would be the obvious source for autologous cellularization strategies. In our approach, HAEC from 16 donors of varying age (16–63 years) were divided into two groups (<30 years and >30 years) and analyzed regarding morphology, viability, proliferation, function and senescence status. No age-related differences were found regarding morphology, viability, density, prostacyclin and nitrite secretion or collagen and laminin production. However, the metabolic activity was slightly decreased ( p = 0.0374) and the membrane integrity marginally impaired ( p = 0.0404) in cells from older donors. Two out of three senescence assays detected more senescence markers in cells from older donors. According to the assays applied here, HAEC from young and elderly donors up to the age of 63 years could be judged equally suitable for autologous cellularization strategies. However, this finding should be regarded with caution due to the extremely large variability between individual donors. Further studies comprising a larger sample size are necessary to investigate this issue more thoroughly.
Korelasi Antara Kandungan Karbohidrat, Protein, dan Lemak dengan Kompatibilitas Grafting Bibit Durian (Durio zibethinus Murr.)
Authors: Suharjo Suharjo 
Published: December 2019

Pembibitan Durian dapat dilakukan dengan menggunakan sumber bahan generatif dan vegetatif. Kedua sumber propagasi ini memiliki kelemahan dan kekuatan masing-masing. Bibit berkualitas diperoleh melalui kombinasi dari dua sumber bahan perbanyakan yang memiliki masing-masing kelebihan yang dapat saling melengkapi. Proses penggabungannya bisa melalui mini grafting. Metode mini grafting di pembibitan durian dapat menggunakan cara grafting samping dan grafting pucuk. Penelitian ini ingin mengkaji hubungan kandungan karbohidrat, protein, dan lemak terhadap keberhasilan pertumbuhan hasil mini grafting pada tanaman durian. Penelitian dilaksanakan dengan menganalisis kandungan karbohidrat, protein dan lemak pada batang atas yang akan digunakan untuk grafting, serta mengamati dan mengukur proses pertumbuhan tanaman hasil mini grafting. Kandungan karbohidrat pada batang atas memberikan kontribusi positif tertinggi terhadap peningkatan jumlah tunas diikuti oleh jumlah daun, luas daun, perbandingan luas daun, perbandingan pupus akar, panjang tunas, dan diameter batang. Kandungan protein dan kandungan lemak tidak dapat berkontribusi pada pertumbuhan bibit okulasi bahkan memiliki kecenderungan untuk menghambat pertumbuhan.
Las percepciones sociales y el consumo de esteroides anabólicos en usuarios de gimnasios en la ciudad de Armenia, 2019
Authors: García Coca John Steven , García Serna Isabela , Mejía Vanegas Dulfary , Rincón Ángela María 
Published: December 2019

Introducción: esta investigación tiene por objeto estudiar los diferentes factores implicados en las percepciones sociales, que determinan el consumo de esteroides anabólicos en la población adulta en edades de 18 a 40 años que realizan entrenamiento físico, en usuarios de gimnasios en la ciudad de Armenia (Colombia), año 2019.
Método: se describirán los elementos causales por los cuales en los últimos años se ha destacado el desarrollo de un concepto que conlleva tener una imagen perfecta, la cual busca impactar de manera positiva ante toda una sociedad, y comprobar así qué tanto es derivado de la presión social que ejercen los medios, los cuales involucran todos los estratos socioeconómicos de la población, y se acerca cada día más a un problema de salud pública, por las diferentes complicaciones y patologías que desencadena el deseo de una buena imagen corporal desde la percepción social.
18F FDG PET-CT Imaging in the Evaluation of Diagnosed Extra Pulmonary Tuberculosis
Authors: Zohra Fatema Tuz , Begum Shamim MF , Akram ASM Fateh , Khan Md Abdus Shakur , Begum Fatima 
Published: December 2019

Objectives: Extra Pulmonary Tuberculosis (EPTB) presents with atypical symptoms and heterogeneous clinical features. Management of EPTB including diagnosis, localization, extension and monitoring treatment response of active disease is quite challenging. Moreover, localization of active disease, differentiation between active and latent disease by conventional methods is troublesome. So this study was done to evaluate the metabolic activity of active disease by 18F Flurodeoxyglucose (FDG) PET-CT in diagnosed cases of EPTB patients.
Patients and methods: A total of 17 patients with EPTB were included in this study. FDG PET-CT scan was performed to evaluate the metabolic activity of tubercular lesions before anti-TB treatment. Clinical features, biochemical changes including ESR, WBC count, CRP, MT test and maximum standardized uptake value (SUVmax) of most intense FDG avid lesions and sizes were recorded in 18F FDG PET-CT scan.
Results: All 17 patients (09 female, 08 male) had lymph node involvement, two had bone TB and two had abdominal TB. Active TB lesions showed increased FDG uptake in extra-pulmonary tubercular lesions in 16 patients. The mean SUVmax value of the involved lymph nodes were 9.4 ± 6.0 and the mean size (maximum diameter) 19.8 ± 10.4 mm (mean ± SD). One histologically proven EPTB patient had non avid lesions in FDG PET-CT scan.
Conclusion: 18F FDG PET-CT scan plays an important role in the localization, extension and differentiation between active and latent TB. In this study, the metabolic activity and size of the involved tubercular lymph nodes were increased in active lesions. Increased FDG uptake in active tubercular lesions may help in treatment monitoring of EPTB. Non avid lesions in EPTB patients revealed suggested latent TB which can change further management plan. Although PET-CT is an expensive technology, application of this sophisticated imaging technique in atypical or doubtful cases of EPTB might modify the treatment plan significantly after proper evaluation of the disease status. , 18F FDG PET-CT scan will be helpful to evaluate the disease status and modification of treatment regime in non-responders cost-effectively. A nationwide large-scale study would be the better way for clinical validation.
Bangladesh J. Nuclear Med. 22(1): 9-14, Jan 2019