bluuebunny/crossref_metadata_2025 huggingface dataset:
Distribution of larvae of the Trematoda Cryptokotyle lühe, 1899 (Trematoda: Heterophyidae) in the body of gobiidae fish
Authors: Honcharov S. L.
Published: November 2019

The analysis of the results of studies of the distribution of pathogens of cryptocotylosis in the body of gobies is given (Mesogobius batrachocephalus Pallas, 1814, Neogobius melanostomum Pallas, 1814, Neogobius fluviatialis Pallas, 1814). Modern informational data from the scientific literature on the spread of this parasite in Ukraine and the world are presented. It has been established that the main place of localization of pathogens of cryptocotylosis is the dorso-cranial part of the body. The highest infection rates were recorded in the area of the first and second dorsal fin – 20.8 and 19.9%, respectively. On the surface of the head, 19.4% of the total number of detected parasites was recorded. The caudal fin section was also marked by rather high rates of invasion – 15.1%. Gills, from dorsally located sites, had the lowest infection rate – 11.2%. The presence of pigmented cysts on the surface of gill lobes was noted on the gills. At high rates of invasion intensity, the gills were covered with a small amount of viscous opaque mucus. Structural changes were noted in the gill lobes, namely, it was recorded that some areas are somewhat more anemic than others. In the pectoral fin region, 10.7% of all identified parasites of the studied species were recorded. The region of the anal fin was the lowest indices – 2.6%. According to the results of studies, it was found that the causative agent of cryptocotylosis can also be localized in places uncharacteristic of its life cycle – the inner wall of the abdominal wall. It was revealed that on the inner side of the abdominal wall was only 0.3% cryptocotylus. During the study of the tissues of the abdominal wall, signs that cercaria had penetrated externally were not established. Obviously, the appearance of metacercaria on the inner side of the abdominal wall is explained by the ingestion of cryptocotylus by сercaria, at the stage of migration, and the passage of the latter through the wall of the intestinal tube. It was noted that metacercariae of varying degrees of oblivion were recorded on the gills. Larvae of trematodes that have recently invaded bull-calves were less pigmented than those that parasitized fish for a certain time. Inflammation on the surface of the gills was noted.
Antimicrobial activity of danofloxacin regarding to bacteria, pathogens of respiratory infections in pigs
Authors: Stetsko T. I. , Kotsiumbas I. Ia. , Liubenko Ya. M. , Padovskyi V. N. , Uhryn H. P.
Published: November 2019

The objective of the research was to study the antimicrobial activity of danofloxacin, the third-generation fluoroquinolone antibiotic, against bacteria, pathogens of acute respiratory infection in pigs. Samples of nasal excretions were selected from clinically sick weaned piglets with acute respiratory infection for microbiological investigation. The sensitivity test, carried out by the disc-diffusion method, showed a high level of the microflora sensitivity of the inflammatory exudate to danofloxacin. Bacteria Streptococcus suis and Bordetella bronchiseptica have been isolated and identified from biomaterial by generally accepted microbiological methods. The degree of antimicrobial activity of danofloxacin against isolated strains of microorganisms was established by determination the minimum inhibitory concentration (MIC) of danofloxacin for isolated bacteria by consecutive dilutions in a liquid nutrient medium. The MIC average of danofloxacin for Streptococcus suis isolates (n = 20) was 0.33 ± 0.082 μg/ml and for Bordetella bronchiseptica isolates (n = 8) – 0.21 ± 0.044 μg/ml. The obtained results showed a high level of bacteriostatic activity of danofloxacin regarding bacterial isolates, pathogens of acute respiratory infection in pigs. Danofloxacin, like other fluoroquinolones, is a critical antimicrobial substance for veterinary medicine. Therefore, chemotherapeutic agents based on this antibiotic can serve as a drug of choice for empirical treatment of pigs with acute respiratory infections of bacterial etiology. To right choose an effective agent for etiotropic therapy and minimize the selection of resistant strains of microorganisms, the antimicrobial susceptibility of isolated bacteria should be pre-established.
Parasitological studies of snails of different regions Ukraine
Authors: Danilova I. S.
Published: November 2019

Dandelion (Gastropoda) is a numerical class of molluscs (about 130 thousand species), which representatives live in seas, salted and freshwater basins, and in wetlands on land. Clams in natural conditions are often infected with larvae of trematodes and some species of nematodes. Locus of localization of larvae is mostly hepatopancreas. Snails are no exception, they can also get sick, as a result, they become sluggish, refuse to eat, begin to allocate too thick mucus and so on. They can be infected: mites, parasites, nematodes, trematodes, bacteria, fungi. Parasites in snails may appear in several ways, namely: transferring from the soil or through entering new pupils who have not undergone quarantine. The consequences may be the most dangerous: contamination of the whole soil, mollusc diseases, human infection. Signs of infection are: lethargy, lack of appetite, slow growth, visual detection. The purpose of this work was to conduct a life-long and post-mortem diagnosis of helminthiasis of snails from different regions of Ukraine. The research was carried out on the snails of the species Helix pomatia from different regions of Ukraine, as well as on the Helix aspersa maxima and Helix aspersa muller artificial populations. From laboratory methods of diagnosis used coproscopic studies (research of faecal samples) of snails. For this purpose, a track of fecal snails was used, which was investigated by 3 methods – deposition method, expulsion method and compressor method. It was found that in samples 1 and 2, eggs and larvae were not detected, and in samples 3, 4 and 5, that is, in the snails of the natural population, nematodose was observed, as well as fungi were detected. This indicates that the external environment plays an important role in the cycle of nematode development. And this is regulated by factors such as temperature and humidity. In the conditions of the farm, these factors, as well as the possibility of skipping eggs or larvae, can be regulated through preventive measures: regulating the density of snails, using special soil, pasture, feed, water, and limiting contact with other snails and animals altogether. These factors are not at all possible in the snails of the natural population, therefore, in our opinion, samples of snails 3, 4 and 5 were more susceptible to nematodosis and infection with mushrooms than snails in samples 1 and 2. The prospect of our further research will be the histological study of hepatopancreas for nematodoznoy invasion.
Some indices of the cats’ protein metabolism under the obesity
Authors: Chala I. , Rusak V. , Feshchenko D. , Kovalyova L.
Published: November 2019

Obesity is one of the most widely-distributed metabolic disturbances in cats, herewith the animals’ number with a given pathology is constantly increasing. The excess mass and obesity lead to the extreme metabolic disturbances including all the chains of metabolism. The cats belong to wild animals and are characterized by a high level of protein metabolism, herewith they are incapable to keep up with the level of the particular amino acids under their constant introduction into the feeds. The intensity of glucogenesis for which the amino acids are viscous material and are involved into the process of dissemination under the obesity is constantly increasing. It results in increasing the amount of final product of nitrogen metabolism. The paper researches the total protein content as well as that of albumin, ammonia, urine, creatinine and creatine kinase activity of the cats’ blood which had the excess mass or obesity. In addition, it has become necessary to determine the content of amino acids cysteine sulfhydryl groups, which essentially contributes to the process of cats’ metabolism. To perform the research two groups of cats (female and male) aged 3–7 were formed, the control group consists of 7 clinically healthy animals that corresponds to the BCS 4–5 index according to the nine grading scale, the experimental group consists of 5 animals of the same age and they have BCS – 7–9 index, that testifies to the excess mass and obesity processes. The concentration of the total protein, albumin, ammonia, urine, creatinine as well as of creatine kinase activity of the total and free(nonprotein) sulfhydryl groups was found in the cats’ blood. The significant decreasing of the albumin part has been revealed in cats with the excess mass and obesity that causes the liver function disturbances and results in increasing of its protein decomposition. The increasing quality of the ammonia content by 31% and urine by 21% has been revealed in cats of the experimental group, however the individual ranges of given indexes within both control and experimental groups were considerable ones. The creatinine concentration and creatine kinase activity in cats with the obesity increases, that testifies to the destructive processes intensification in the muscular tissues. Sulfhydryl groups of the cysteine are of great importance for the metabolic processes in particular in the processes of detoxication, disease-resistance as well as of antioxidant processes. The total concentration of SH-blood groups made no essential difference in cats of the control and experimental groups, while the concentration of free SH-blood groups of experimental animals was by 31% less than in its control analogues. Thus, the obesity has an essential effects on the protein metabolism that causes the amino acids decomposition processes as well as the accumulation of the metabolic final products and free sulfhydryl groups reducing.
The effect of cadmium loading on the activity of the enzyme link of the glutathione system of bull organism
Authors: Lavryshyn Y. Y. , Gutyj B. V. , Paziuk I. S. , Levkivska N. D. , Romanovych M. S. , Drach M. P.
Published: November 2019

One of the ultimate manifestations of Cadmium's toxic effects is the depletion of the animal's antioxidant protection system. The article presents data on the effect of cadmium chloride at a dose of 0.04 mg/kg body weight on the activity of enzymes of the glutathione system of antioxidant protection of the body of young cattle. The surveys were conducted on the basis of farm Ivanivtsi of Zhydachiv district of Lviv region on 10 bulls of six months old, Ukrainian black-ruffed dairy breed, which were formed into 2 groups of 5 animals each: control and experimental. Bulls of the experimental group were fed with feed cadmium chloride at a dose of 0.04 mg/kg body weight of the animal. For research, the rules were compulsory for performing zootechnical experiments on the selection and retention of analogues in groups, technology for the procurement, use and accounting of feed consumed. The diet of the animals was balanced by the nutrients and minerals that provided for their need for essential nutrients. The results of studies indicate that Cadmium significantly affects the metabolism processes in liver cells, and thus stimulates lipid peroxidation processes and inhibits the activity of enzymes of the glutathione link of the antioxidant system. The lowest activity of the enzyme link of the glutathione system of antioxidant protection of the body of cattle was found on the twentieth day of the experiment, where, accordingly, the activity of glutathione peroxidase in the serum of bugs of the experimental group decreased by 22.6%, the activity of glutathione 6 phosphate dehydrogenase – by 24.3% relative to the control group of animals. The inhibition of the activity of enzymes of the glutathione system of the organism of bulls of the experimental group is caused by the development of oxidative stress caused by the feeding of Cadmium. The researches made it possible to reveal more deeply the pathogenesis of the toxic effect of cadmium on the body of bugs and use these data in the development of an antidote for cadmium intoxication.
Morphology of trachea of mature chickens, grown under the conditions of radioactive contamination
Authors: Horalskyi L. P. , Sokulskyi I. M. , Demus N. V. , Levchuk O. K.
Published: November 2019

The features of macro- and microscopic structure and morphometric parameters of the trachea of chickens of the Black Moscow breed of 180 days of age grown in conditionally pure and II zone of radioactive contamination are presented in the work using radiological, morphological, morphometric and statistical methods of research. It has been found that the presence of chickens in radioactively contaminated territories, feeding them with locally-sourced food, has an adverse effect on the respiratory organs, including the trachea. According to the results of radiological research, the increase of gamma background was established in the territory where the experimental part of the research was conducted. Thus, according to our observations, the specific power of the exposure dose of gamma rays for cesium-137 in the territory where the experimental animals were kept was almost in 3–3.5 times higher than this indicator for the relatively pure radioactive contamination of the territory. The specific activity of the diet for cesium-137 in chickens of 180 days of the experimental group was almost 8.5 times higher than in the control group of animals and was 13.4–16.0 Bq/kg, compared with the control (1.64–1.82 Bq/kg), indicating the cumulative capacity of this isotope. According to our research, the trachea of chickens of the experimental group has a pale pink color and is built of cartilage rings (110–120 units), which have a rounded shape. Its wall is formed by the mucous and fibrous cartilage and adventitia. The mucous membrane has a folded structure and is lined with multilayered ciliated epithelium and contains glands. Four types of cells are well differentiated into the epithelium: basal, ciliated, endocrine, and goblet. The fibrous cartilage sheath is formed by tracheal cartilages, which are interconnected by a dense fibrous connective tissue. The histoarchitectonics of the trachea of chickens reared in the second zone of radioactive contamination is similar to that of chickens in the control group. However, our morphometric studies noted that the animals of the experimental group increased the size of the terminal parts of the tracheal glands, thickened connective tissue capsules of the lymph nodes. The absolute body mass of the chickens of the experimental group, compared with the control group, tends to decrease and is respectively 2.96 ± 0.19 g, while the relative weight of the organ significantly (P ≤ 0.001) decreases to 0.284 ± 0.027%. In addition, for 180-day-old chickens that were constantly under radioactive contamination, the thickness of the mucous, fibrous, cartilage, and adventitious membranes tended to decrease compared to chickens from the conditionally clear area for radioactive contamination.
Kinetics of Oil Extraction from Candlenut (Aleurites moluccana)
Authors: Mohd Fuad Faiznur , Abdul Azim Wan Azzuddin Wan
Published: November 2019

Oil from candlenut (Aleurites moluccana) was extracted using a solvent extraction technique. The influence of three parameters namely extraction time, extraction temperature as well as liquid to solid (L/S) ratio on the candlenut oil yield were studied to optimise the extraction conditions for achieving maximum oil yield. The maximum candlenut oil yield (35.67%) was achieved using methanol as a solvent at a temperature of 45oC for 80 min of extraction period. The optimum L/S ratio was 10ml/g. It was found that the candlenut oil yield increases with the increase of extraction time, extraction temperature and L/S ratio. Kinetics of solvent extraction of oil from candlenut was evaluated using Peleg’s model and Logarithmic model. The model parameters were calculated using the experimental data.  The kinetics of candlenut oil extraction conforms very well to the Peleg’s model with a high R2 value of 0.9927 and low MRPD value of 1.827%. However, the Logarithmic model can fairly describe the candlenut oil extraction process with the values of R2 and MRPD of 0.9653 and 4.352%, respectively.
OCUPAÇÃO PINHEIRINHO: DESCRIÇÕES SOBRE A INFLUÊNCIA DA TRAJETÓRIA DE TRABALHO DE UMA EX-MORADORA EM SUA ESCOLHA POR UMA OCUPAÇÃO URBANA
Authors: Machado Pedro , Brisola Elisa
Published: November 2019

Este artigo descreve duas cenas distintas, mas inter-relacionadas entre si. A cena 1 apresenta o cotidiano de Irene dentro de uma ocupação urbana conhecida como Pinheirinho, tendo uma lanchonete como posto de observação. Essa cena descreve relações nebulosas, que podem colocar em dúvida o caráter de Irene. Já a cena 2, objetivo deste artigo, descreve a trajetória de trabalho de Irene, anteriormente à ocupação Pinheirinho, contextualizando-o e discutindo a influência deste na opção de Irene pela ocupação. A intenção de apresentar 2 cenas distintas é ressaltar a importância de conhecer o objeto em seu desenvolvimento e em seus diversos aspectos, mediações e ambientes. Acredita-se, dessa maneira, que a cena 2 seja capaz de alterar as impressões iniciais dada pela cena 1. Utilizou-se como fonte primária os relatos obtidos em pesquisa anterior, através da História Oral de Irene, em entrevistas que aconteceram em três momentos distintos, entre janeiro e setembro de 2013.
A Comparative Analysis of the Stomatal Density of Ficus septica Burm. f. Along an Altitudinal Gradient at the Kalungan Forest of Mt. Talinis, Bacong, Negros Oriental
Authors: Apostol Ma. Harriette , Berones Kathleen Amor , Coritico Marsha , Sabarillo Vallisandro , Gerona Maria Elisa , Cabansag Jerome Benedict
Published: November 2019

Altitude is one of the environmental factors that affects a number of plant developmental processes, including stomatal development. In this study, the nail polish imprinting method was used to determine if stomatal density increases with increasing elevation in Ficus septica Burm. f. a widely distributed woody species in the Kalungan Forest, Mt. Talinis, Bacong, Negros Oriental. Sampling was done from 392 – 894 m above sea level from three trees per elevation. Six elevation stations were identified at 100 m interval. Leaf stomatal imprints from three trees per elevation were obtained. Stomata were counted manually with the aid of software ImageJ 1.45. Stomatal density values of the highest and lowest elevation were 3869.6 ± 814.1 and 1125.6 ± 357.1, respectively. Regression analysis showed a strongly linear relationship between stomatal density and elevation.
FAKTOR YANG BERHUBUNGAN DENGAN MUTU PELAYANAN KESEHATAN DI RUANG RAWAT INAP RUMKITAL DR. KOMANG MAKES BELAWAN
Authors: Lestari Sari
Published: November 2019

Kementrian Kesehatan RI tahun 2012 menyatakan bahwa dalam melakukan pemberian pelayanan kesehatan medis harus yang berkualitas tinggi, salah satunya pelayanan yang ada rumah sakit. Rumah sakit harus dapat menunjang kenyamanan pasien dengan fasilitas perawatan dan pemberian asuhan perawatan yang efisien dalam menunjang klasifikasi pasien. Rumkital Komang Makes sebagai Rumkit tingkat III dengan tipe C masih memiliki mutu pelayanan yang kurang memadai. Berdasarkan data dari rumah sakit, jumlah kunjungan pasien yang datang sedikit yaitu pertiga bulan sebanyak 299 pasien. Penelitian ini bertujuan untuk mengetahui faktor yang berhubungan dengan mutu pelayanan kesehatan di Ruang Rawat Inap Rumkital Dr. Komang Makes Belawan Tahun 2019. Desain penelitian ini adalah survei analitik dengan pendekatan cross sectional. Jumlah populasi sebanyak 85 pasien dan pengambilan sampel dengan teknik total population. Diperoleh hasil bahwa kehandalan (p=0,002), bukti fisik (p=0,003), kepedulian (p=0,001) berhubungan dengan mutu pelayanan kesehatan di Ruang Rawat Inap Rumkital Dr. Komang Makes Belawan dengan nilai ɑ = 0,05, sedangkan variabel jaminan (p 0,135) dan ketanggagan (p 0,17) tidak memiliki hubungan yang signifikan dengan mutu pelayanan kesehatan, hal tersebut dilihat dari nilai p> 0,05. Diperoleh kesimpulan dari lima variabel yang diteliti, ada tiga variabel yaitu kehandalan, bukti fisik dan kepedulian yang berhubungan dengan mutu pelayanan kesehatan. Saran dari penelitian ini adalah tenaga kesehatan dan pihak rumah sakit harus lebih memperhatikan lagi kelengkapan fasilitas ruangan dan kebersihan alat-alat kesehatan juga kebersihan lingkungan rumah sakit dan memberikan pelayanan yang ramah untuk kenyamanan pasien ketuka pemeriksaan.
The Emergence of East Central Europe in a Welfare Regime Typology
Authors: Orosz Ágnes
Published: November 2019

The paper contributes to the welfare state regime literature by assessing the existence of the East-Central European welfare state regime. The article empirically tests whether East-Central European countries constitute a distinct welfare regime or they can be classified into existing regimes by using hierarchical cluster analysis. The paper defines clusters for two distinct time periods, in order to shed light on the changes over time. The research provides two substantive contributions. First, welfare states in East-Central Europe constitute a distinct welfare state regime only for the period of 2014-2016, and they might be subdivided into two groups: (1) Visegrad countries and (2) Balkan and Baltic countries together. Second, countries within the East-Central European welfare regime has become more similar over time.
Improving Students’ Speaking Achievement by Using Storytelling Technique
Authors: Sembiring Novalina , Ginting Fiber Y.A.
Published: November 2019

This study was aimed to improve the students’ speaking achievement by using storytelling technique. The subject of the study was the eight grade students of Public Junior High School 22 Medan in academic year 2018/2019. This study was conducted by applying Classrom Action Research (CAR), which had been conducted in two cycles and each cycle consisted of three meetings. The instruments of collecting data were quantitative data (speaking test) and qualitative data (observation checklist and field notes). The result of the test shows that the mean score of pre test is 40, formative test is 46.34, and post test is 62.89. The percentage of the students’ means score improve from pre test to post test 57.2%. The result of observation checklist and field notes showed that the students were interested in teaching and learning English especially speaking skill by using storytelling technique. These indicated that there was a significant improvement of the students’ speaking achievement by using storytelling technique.
Developing Teaching Materials Based on Social Care Characters Based on Franciscan Spirituality With Contextual Teaching And Learning (CTL) Strategies
Authors: Gultom Elti L. , Simaremare Aman , Dewi Rosmala
Published: November 2019

This study aimed to: (1) produce appropriate teaching materials to shape the social care character of early childhood, (2) produce effective teaching materials to shape the social care character of early childhood. This type of research was research and development (R&D) using the ADDIE development model. The quantitative data analysis technique used in this study was quantitative descriptive. Qualitative data obtained from the questionnaire were then converted to qualitative data on a scale of 5 (Likert scale). The findings showed that: (1) Teaching materials met the requirements and were appropriate to be used as teaching materials, based on the assessment of material experts, design experts, linguists, and practitioners/ teachers. The result of the validation of the material experts in all aspects of the material was 87.8% in the very good criteria, the result of the validation of the learning design expert in all the aspects was 90.4% in the very good criteria, and the validation of the linguists in all aspects was 93% in the very good criteria. The result of the teacher's response to teaching materials with a total average percentage of all aspects was 93.7% with the “very good” criteria. (2) The teaching material developed was more effective than without using the teaching material. The effectiveness of teaching materials based on social care character based on the values of Franciscan spirituality  developed was 80.2%, and based on Siswanto's  theory was 81.36%. The effectiveness before teaching materials was reviewed based on the values of Franciscan spirituality was 40.72%, and based on Siswanto's theory was 41.2%. Therefore, the development of pictorial story teaching materials was good enough to shape the social care character of early childhood.
Development of Teaching Materials of German Literature with Children’s Literature Material Based on Blended Learning
Authors: Bengar Ahmad
Published: November 2019

The purpose of this study is to develop teaching materials of german literature with children’s literature material based on blended learning in German language education program Unimed. With this research, it is expected to improve the quality of learning in literature or nchildre literature courses so that students can quickly understand about German literature. This  research is conducted at the Faculty of Languages and Arts UNIMED, German Language Education Study Program. The method which uses in this research is the ADDIE development method. From the results of the study we will get literature textbooks with German children’s literature material based on blended learning and digital learning media as well as national or international indexed journal articles or proceedings.
Development of Web-Based Learning Media on Social Studies Subject at Junior High School Methodist Lubuk Pakam, Indonesia
Authors: Thesalonika Emelda , Tanjung Samsidar , Restu Restu , Manalu Effendi
Published: November 2019

Prioritizing WEB-based knowledge learning. The approach taken to familiarize students with high-level thinking is helped by WEB. Based on preliminary analysis, it is known that teachers have difficulties in designing a WEB-based social science learning media. This study uses the ADDIE model to develop web-based learning media. The development research flow, namely, analysis, design, development, implementation, and evaluation. The results of research in the form of WEB-based social studies learning media products have been declared feasible by a team of experts. Practically, this research can be useful for teachers, the government.
Development of Scientific Based Learning Video Media Using Problem Based Learning (PBL) Model to Improve Student Learning Outcomes in 4Th Grade Students of Elementary School Parmaksian, Kab. Sambair Toba
Authors: Simanjuntak Launa Yenny Abadi , Perangin-Angin Reh Bungana , Saragi Daulat
Published: November 2019

Learning media is a learning tool that is very important in the learning process. This study aims to produce scientific-based learning videos with problem-based learning models to improve the learning outcomes of Civic students in 4th grade elementary school in Parm testimonial, Toba Samosir district. This type of research is research and development using the 4D model. research instruments used in the form of an expert validation questionnaire, teacher and student response questionnaire and learning achievement tests. Then the data analysis in the form of expert validation analysis is carried out by material, language and media experts, practicality analysis is carried out by teacher and student questionnaires and effectiveness analysis is done by pretest and posttest. The stages of this research are define, design, develop and assess. The results of this study indicate that the validation rate of material experts is 80% in the very high category, the validation of linguists is 89% in the very high category and the validation of the media expert is 92% in the very high category while the N gain for student learning outcomes is 0.7 with the category high. Finally, instructional videos are also considered by teachers and students by obtaining 87.5% of teachers and obtaining an average of 79% of students in either category. Thus, scientific-based videos can improve student learning outcomes.
Interactive Multimedia Development in Learning of Film Review Text for 8th Grade Students in Senior High School (SMP) 1 Tanjungmorawa
Authors: Lindasari Eva , Ansari Khairil , Marice Marice
Published: November 2019

This study aims to produce interactive multimedia development in learning of film review text for 8th grade students in Senior High School (SMP) 1 Tanjungmorawa. The research method uses Research and Development method which refers to the development of the Borg and Gall which was modified by Sugiyono. The results of the validation of material experts on the feasibility of the content obtained an average of 90.7% in the category of "Excellent" aspects of the feasibility of the language obtained an average of 100% with the category of "Excellent".  For the assessment of the results of interactive multimedia validation by media experts an average of 84.7% with the category of "Excellent". Product trials are carried out in two stages: small group trials and limited field trials. Small group trials obtained an average percentage of 86.6 with the "Excellent" category. Limited field trials received an average percentage of 88.4 in the "Excellent" category. The effectiveness of teaching materials is obtained through student learning outcomes in the pretest and posttest. average score at pretest 44 and at posttest 77. This proves that interactive multimedia is feasible, easy, and effective for 8th grade students in Senior High School (SMP) 1 Tanjungmorawa.
Examining Factors Influencing the Adoption mobile application in collaborative learning
Authors: Mumba Phillimon , Lengwe Maybin
Published: November 2019

Nations are making huge investments to ensure that their citizens receive the education so that they can contribute to different aspects of development of a country. Despite the investments in education in many countries, researches show that there is need to improve the quality of education offered in tertiary institutions. To improve the quality of education offered institution of higher learning need to consider approaches that place students at the center of the learning process. One such approach is to use mobile application-aided collaborative learning. Mobile application-aided Collaborative learning promises great benefits to students and institutions. However, to successfully implement mobile application aided collaborative learning, it is important to determine if students are ready to use it. In this paper, we use the Unified Theory of Acceptance and Use of Technology (UTAUT) to determine the key factors that should be put in place for collaborative learning to be used successfully. The main contribution that this paper makes is that, it identifies the factors that Copperbelt University needs to work on so that collaborative learning can be used more effectively.
Design and Control of a Grid-connected Seven Level Inverter for Photovoltaic Applications
Authors: Mulolani Francis , Kafata Francis , Zulu Esau
Published: November 2019

This paper presents the design and closed-loop current control of a grid connected seven-level, 3-phase diode-clamped multilevel inverter for Photovoltaic (PV) applications. The proposed closed loop current control technique is based on the voltage-oriented proportional integral (PI) controller theory. The modulation technique used is level-shifted-carrier sinusoidal pulse width modulation (SPWM). The gain values of PI controller were selected to achieve good current quality and dynamic response. Grid synchronization was achieved by using a synchronous-reference frame phase-locked loop (SRF-PLL). Matlab/Simulink was used for the control system design and simulation. The simulation results show that a 1.34% total harmonic distortion (THD) of the output current was achieved which is within the allowable current distortion limits by international standards. The stability of the system was analyzed using pole-zero mapping and root locus.
Identity Management Based on Frontal Facial Recognition for Voters Register in Zambia
Authors: Musambo Lubasi K. , Phiri Jackson
Published: November 2019

Biometric technology offers a great opportunity to identify individuals, authenticate individuals and separate individuals. Using these advantages, an election or voting model can be developed to perform elections for a country such as Zambia. Zambia currently uses a manual based voting or election model that heavily relies on paper presented documents that must be physically verified and or matched to existing prior collected information before an individual is allowed to participate in an election or a voting system. This paper proposes a frontal facial election based biometric model that can be used to rid the current election system of redundancy and introduce a paperless, accurate and efficient identification, authentication and voting process. A baseline study conducted shows that biometric authentication based on this proposed model improves a work related process such as a voting system. We start by introducing the elements that make a biometric model ideal, we then give an insight into the Zambian based election system and then we review various biometric technologies available and then finally introduce our biometric model.
ALIH KODE DAN CAMPUR KODE DALAM PROSES PENGAJARAN BAHASA INDONESIA
Authors: Sudarja Kusman
Published: November 2019

Alih kode dan campur kode merupakan salah satu fenomena di lingkungan sekolah berbasis kurikulum internasional saat ini.Alih kode dan campur kode tidak hanya terjadi di luar kelas namun juga terjadi dalam interaksi belajar mengajar di kelas. Untuk mengetahui gelaja alih kode dan campur kode, diperlukan sebuah penelitian linguitik yang komprehensif pada sekolah yang berbasis kurikulum internasional. Penelitian ini bertujuan untuk mendeskripsikan gejala alih kode dan campur kode yang mencakup betuk-bentuk alih kode dan campur kode, faktor-faktor penyebab alih kode dan campur kode, fungsi-fungsi alih kode dan campur kode, serta dampak alih kode dan campur kode dalam tindak tutur guru dan siswa saat belajar.Penelitian ini mengambil lokasi di Kelas III SD Lentera Internasional Jakarta Selatan. Subjek penelitian ini adalah guru bahasa Indonesia dan siswa kelas II SD Lentera Internasional. Sekolah Lentera Internasional adalah sekolah yang mengajarkan kurikuum berbasis internasional dari Elementary School, Middle School, dan High School. Bahasa pengantar yang digunakan adalah bahasa Inggris di seluruh tingkat pendidikan. Akibatnya dalam pebelajaran bahasa Indonesia, siswa sering mencampur kode dan alih kode dalam proses belajar bahasa Indonesia. Penelitian dilaksanakan pada 19 Oktober – 16 November 2011. Rancangan penelitian yang digunakan adalah rancangan penelitian kualitatif dengan menggunakan metode etnografi. Penelitian ini mencoba mendeskripsikan secara apa adanya kondisi penggunaan bahasa Indonesia dalam proses pembelajaran bahasa Indonesia. Hasil Peneitian alih kode dan alih kode siswa kelas III SD Lentera Internasional mendeskripsikan bahwaalih kode dan campur kode dilakukan guru dan siswa dalam interaksi belajar mengajar. Siswa menyisipkan unsur –unsur bahasa Inggris seperti serpihan kata dan frasa bahasa Inggris ke dalam bahasa Indonesia saat belajar di kelas. Faktor-fator yang mempengaruhi siswa dalam melakukan alih kode dan campur kode dari bahasa Indonesia ke dalam bahasa Inggris yaitu, faktor kemampuan bilingualitas/multilingualitas, adanya ketergantungan terhadap bahasa dominan, dan siswa tidak menemukan padanan kata yang ingin diungkapkan. Alih kode dan campur kode juga dilakukan oleh guru bahasa Indonesia saat proses belajar mengajar. Guru menyisipkan unsur-unsur bahasa Inggris seperti serpihan kata dan frasa berbahasa Inggris ke dalam bahasa Indonesia. Penyebab guru melakukan alih kode dan campur kode yaitu ingin menegaskan sesuatu, beralih kode membantu guru dalam menjelaskan konsep dengan lebih mudah, dan ingin menyampaikan ide/gagasan secara tepat.
Oedipus's Riddle: Elizabethan transformation of the family portrait of Thomas More, an Appendix to “Non sum Oedipus sed Morus”
Authors: Mitjans Frank
Published: November 2019

Holbein produced a drawing of Sir Thomas More and his Family which was a preparatory sketch for a larger painting. The painting was acquired by Karl von Liechtenstein-Kastelkron (1623–95), Archbishop of Olomouc, Moravia, and was last recorded in 1691 as being kept in the episcopal residence in Olomouc; it is generally assumed that the painting was lost in the 1752 fire at the Archbishop's château in Kroměřiž. There are, however, five extant versions of the Family Group. The three main versions are the full-sized oil on canvas, The Family of Sir Thomas More (1592), now at Nostell Priory, and two paintings of Sir Thomas More, his Household, and Descendants: one kept at the National Portrait Gallery, the other at the Victoria and Albert Museum, London. There has been much discussion about the transformation from a family at prayer—as portrayed in the original drawing—to a conversation on Seneca. Based on editions of Oedipus prior to the Nostell painting, the history of More's descendants, and a cameo that belonged to More's family, this paper argues that the Elizabethan transformation is a story of conformity and non-conformity.
Thomas More's silence and the ethics of conscience
Authors: Pooley Thomas Mathew
Published: November 2019

This article explores silence and the ethics of conscience through a study of the life and late letters of Sir Thomas More. More's silence is a paradigm case for the contest of conscience under conditions of tyranny, and it is one of the most influential in the formulation of principles of conscience and human rights in modern constitutional democracies. The article focuses on More's prosecution by King Henry VIII, and offers close analysis of the concept of conscience discussed in his last letters. The approach is historical and philosophical, and puts More's case in dialogue with other classic and modern texts on the ethics of conscience. Emphasis is placed on More's principle of self-determination as essential to conscience.
PERMANENT STATION OF SPACE GEODESY NVSK AND ISKITIM EARTHQUAKES
Authors: Timofeev Vladimir , Ardyukov Dmitriy , Boyko Elena , Timofeev Anton
Published: November 2019

We discuss technical-ecological problems. Displacement and tilt results, received at permanent station Klyuchi (11 km from Novosibirsk) during Iskitim earthquakes period, were presented for 2017-2019 yy. These earthquakes happened at Iskitim coal-mines territory, 50 km from Novosibirsk and 20 km from Berdsk. We review effects connected with building of water-reservoirs and with exploitation of deposits. Space geodesy receivers GLONASS-GPS type, tilt-meters and gravimeters were used at NVSK (Klyuchi) station. This complex was used for network measurement. We discuss the results of displacement-strain observation at Ust-Balyk gas-oil deposit, Zapolyarnii gas deposit and for water-reservoir of Sayan-Shushenskoe Electric Power Station (SSEPS).
Experiment and Modeling on Macro Fiber Composite Stress-Induced Actuation Function Degradation
Authors: Wang Wei , Zhang Zikuo , Yang Zhichun
Published: November 2019

The effect of stress depolarization will cause actuation function degradation of a piezoelectric actuator, which can eventually trigger function failure of the piezoelectric smart structure system. In the present study, we experimentally demonstrate the degradation process of the actuation function of the Macro Fiber Composite (MFC) piezoelectric actuator. Actuation function degradation data of MFC actuators undergoing cyclic loads with four different stress amplitudes have been measured. Based upon the experimental results, the radial basis function (RBF) neural network learning algorithm was adopted to establish a neural network model, in order to predict the actuation function degenerative degree of the MFC actuator, undergoing arbitrary cyclic load within the concerned stress amplitude range. The maximum relative error between the predicted result and our experimental result is 4%.
Impact of Habitat Loss and Mining on the Distribution of Endemic Species of Amphibians and Reptiles in Mexico
Authors: Mayani-Parás Fernando , Botello Francisco , Castañeda Saúl , Sánchez-Cordero Víctor
Published: November 2019

Mexico holds an exceptional diversity and endemicity of amphibian and reptile species, but several factors pose a threat to their conservation. Here, we produced ecological niche models for 179 Mexican endemic amphibian and reptile species and examined the impact of habitat loss and mining activities on their projected potential distributions, resulting in their extant distributions. We compared extant species distributions to the area required to conserve a minimum proportion of the species distribution. The combined impact of habitat loss and mining on extant species distribution was significantly higher than the impact of habitat loss alone. Only 40 species lost <30% of their distribution, while 83 species lost between 30–50%, 54 species lost between 50–80%, and 2 species lost more than 80% of their distribution. Furthermore, the size and configuration of the area required to conserve 20% of the extant species distributions changed considerably by increasing the number of fragments, with a potential increase in local population extirpations. Our study is the first to address the combined impact of habitat loss and mining on a highly vulnerable rich endemic species group, leading to a decrease in their potential distribution and a potential increase in the extinction risk of species.
Online Slack-Stealing Scheduling with Modified laEDF in Real-Time Systems
Authors: Jeon Wonbo , Kim Wonsop , Lee Heoncheol , Lee Cheol-Hoon
Published: November 2019

In hard real-time task systems where periodic and aperiodic tasks coexist, the object of task scheduling is to reduce the response time of the aperiodic tasks while meeting the deadline of periodic tasks. Total bandwidth server (TBS) and advanced TBS (ATBS) are used in dynamic priority systems. However, these methods are not optimal solutions because they use the worst-case execution time (WCET) or the estimation value of the actual execution time of the aperiodic tasks. This paper presents an online slack-stealing algorithm called SSML that can make significant response time reducing by modification of look-ahead earliest deadline first (laEDF) algorithm as the slack computation method. While the conventional slack-stealing method has a disadvantage that the slack amount of each frame must be calculated in advance, SSML calculates the slack when aperiodic tasks arrive. Our simulation results show that SSML outperforms the existing TBS based algorithms when the periodic task utilization is higher than 60%. Compared to ATBS with virtual release advancing (VRA), the proposed algorithm can reduce the response time up to about 75%. The performance advantage becomes much larger as the utilization increases. Moreover, it shows a small performance variation of response time for various task environments.
Non-Typical Fluorescence Effects and Biological Activity in Selected 1,3,4-thiadiazole Derivatives: Spectroscopic and Theoretical Studies on Substituent, Molecular Aggregation, and pH Effects
Authors: Budziak Iwona , Karcz Dariusz , Makowski Marcin , Rachwał Kamila , Starzak Karolina , Matwijczuk Alicja , Myśliwa-Kurdziel Beata , Oniszczuk Anna , Combrzyński Maciej , Podleśna Anna , Matwijczuk Arkadiusz
Published: November 2019

The below article presents the results of spectroscopic research, theoretical (time-dependent density functional theory (TD-DFT)), microbiological, and antioxidative calculations for three compounds from the group of 1,3,4-thiadiazoles: 2-amino-5-phenyl-1,3,4-thiadiazole (TB), 2-amino-5-(2-hydroxyphenyl)-1,3,4-thiadiazole (TS), 2-amino-5-(2-hydroxy-5-sulfobenzoyl)-1,3,4-thiadiazole (TSF). In the fluorescence emission spectra (TS) of solutions with varying concentrations of hydrogen ions, a particularly interesting effect of dual fluorescence was observed. The aforementioned effect was observed even more clearly in the environment of butan-1-ol, relative to the compound’s concentration. Depending on the modification of the resorcylic substituent (TS and TSF), we observed the emergence of two separate, partially overlapping, fluorescence emission spectra or a single emission spectrum. Interpretation of the obtained spectra using stationary and time-resolved spectroscopy allowed the correlation of the effect’s emergence with the phenomenon of molecular aggregation (of a particular type) as well as, above all, the structure of the substituent system. The overlap of said effects most likely induces the processes related to the phenomenon of charge transfer (in TS) and is responsible for the observed fluorescence effects. Also, the position of the –OH group (in the resorcylic ring) is significant and can facilitate the charge transfer (CT). The determinations of the changes in the dipole moment and TD-DFT calculations further corroborate the above assumption. The following paper presents the analysis (the first for this particular group of analogues) of the fluorescence effects relative to the changes in the structure of the resorcylic group combined with pH effects. The results of biological studies also indicate the highest pharmacological potential of the analogue in the case where the effects of dual fluorescence emission are observed, which predisposes this particular group of fluorophores as effective fluorescence probes or potential pharmaceuticals with antimycotic properties.
Dimorphism of HLA-E and Its Disease Association
Authors: Kanevskiy Leonid , Erokhina Sofya , Kobyzeva Polina , Streltsova Maria , Sapozhnikov Alexander , Kovalenko Elena
Published: November 2019

HLA-E is a nonclassical member of the major histocompatibility complex class I gene locus. HLA-E protein shares a high level of homology with MHC Ia classical proteins: it has similar tertiary structure, associates with β2-microglobulin, and is able to present peptides to cytotoxic lymphocytes. The main function of HLA-E under normal conditions is to present peptides derived from the leader sequences of classical HLA class I proteins, thus serving for monitoring of expression of these molecules performed by cytotoxic lymphocytes. However, opposite to multiallelic classical MHC I genes, HLA-E in fact has only two alleles—HLA-E*01:01 and HLA-E*01:03—which differ by one nonsynonymous amino acid substitution at position 107, resulting in an arginine in HLA-E*01:01 (HLA-ER) and glycine in HLA-E*01:03 (HLA-EG). In contrast to HLA-ER, HLA-EG has higher affinity to peptide, higher surface expression, and higher thermal stability of the corresponding protein, and it is more ancient than HLA-ER, though both alleles are presented in human populations in nearly equal frequencies. In the current review, we aimed to uncover the reason of the expansion of the younger allele, HLA-ER, by analysis of associations of both HLA-E alleles with a number of diseases, including viral and bacterial infections, cancer, and autoimmune disorders.