bluuebunny/crossref_metadata_2025 huggingface dataset:
Avaliação das estruturas ósseas envolvidas na técnica cirúrgica da instalação de implantes zigomáticos em crânios macerados desdentados.
Authors: Miglioranza Reginaldo , Carneiro Junior José Thiers , Francischone Carlos Eduardo
Published: March 2020

Introdução: O implante zigomático (IC) é uma alternativa para pacientes desdentados ou parcialmente dentados que não possuem osso maxilar suficiente para reter o implante dentário convencional e para casos em que o enxerto ósseo não é adequado, apresentando uma taxa de sucesso superior a 90%.
Objetivos:  O objetivo deste estudo foi analisar as estruturas ósseas envolvidas na instalação do IC, considerando gênero e etnia.
Material e método: Foram incluídos 96 crânios de indivíduos adultos, desdentados, de ambos os sexos, leucoderma e melanoderma. Um paquímetro digital foi utilizado para realizar as seguintes medidas: 1) RA-CPS: distância da crista alveolar no nível do segundo pré-molar superior até a margem superior posterior do osso zigomático; 2) ECPS: Espessura do osso zigomático ao nível da margem superior posterior; 3) EQM: espessura do osso zigomático em sua porção média.
Resultados: Os valores médios obtidos para RA-CPS, ECPS e ECM em milímetros foram, respectivamente: leucoderma feminino 52,09, 2,04 e 4,30; mulheres com melanoderma 53,47, 1,99 e 4,93; machos leucoderma 55, 49, 2,28 e 5,33; Homens Melanoderma 57.01, 2.22 e 6.01.
Conclusões: Concluímos que indivíduos leucoderma apresentam valores médios mais baixos do que indivíduos melanoderma. Além disso, as mulheres apresentam valores médios mais baixos que os homens em todas as medidas. Os valores encontrados neste estudo podem ser utilizados como parâmetro para o planejamento da técnica cirúrgica para instalação do CI, evitando riscos de complicações.
Tração necessária para a remoção de copings de coroa fundida cimentada em pilares de implante dentário.
Authors: Alderete Llamosa Alfredo , Pelegrine André Antônio , Calistro Lucas Cesar , Neves Ramos Alysson Henrique , Coelho Paraguassu Éber , Vieira Ronan , Fernandes Tinoco Eric Janses , Basting Roberta
Published: March 2020

Introdução: As próteses fixas implanto-suportadas são alternativas de tratamentos cada dia mais frequente nas clinicas odontológicas. Elas podem ser parafusadas ou cimentadas dependendo do planejamento cirúrgico. As próteses parafusadas são reversíveis, tem maior infiltrado bacteriano, estética prejudicada pelo orifício dos parafusos. As próteses cimentadas têm dificuldades de reversão, perda da prótese em caso de afrouxamento de parafuso e uma melhor estética por não ter orifício do parafuso.

Objetivos: Nesse contexto, o presente estudo, pretender avaliar os níveis de resistência a tração dos copping´s cimentados por 2 diferentes tipos de cimentos para fixação de coroas implanto-suportadas cimentadas.

Metodologia: Foram confeccionados três corpos de prova com implantes e coroas cimentadas com diferentes matérias, onde cada um desses corpos de prova foi submetido a um teste de tracionamento.

Resultados: Os copping´s cimentados com cimento fosfato de zinco (CP1 e CP4) exigiram uma força de tração de 118.02 kgf e 213.63 kgf respectivamente, enquanto os copping´s cimentados com cimento resinoso (C2 e C3) exigiram uma força de tração de 258.93 kgf e 228.87 kgf respectivamente.

Conclusão: Dentro das limitações das atuais condições in vitro empregadas neste estudo, a retenção de copping’s de coroa cimentada nos pilares de implantes com cimento resinoso e cimento fosfato de zinco foi significativamente afetada pelo tipo de cimento. O cimento resinoso exigiu uma força de tração significativamente maior que o cimento fosfato de zinco para a remoção dos copipng’s.
Implantes curtos na mandíbula.
Authors: Marques Baia André
Published: March 2020

Introdução: Instalar um implante na região posterior da maxila e da mandíbula sempre foi muito crítico devido à baixa qualidade óssea e quantidade óssea reduzida, encontradas em vários casos clínicos, devido as reabsorções ósseas.

Objetivos: Este estudo tem como objetivo avaliar na literatura médica vigente alguns casos onde foram instalados implantes curtos em região posterior.

Metodologia: Foi realizado uma varredura nos portais de indexação Google acadêmico, Scielo, Pubmed e livros de autores especialistas na área de implantodontia, portanto a modalidade da pesquisa é bibliográfica tendo um objetivo exploratório, onde foi feita uma revisão de literatura desde as primeiras publicações que abrangem o tema até as pesquisas mais recentes.

Resultados: Foram encontrados mais de 10.000 artigos referentes ao tema e 17 foram escolhidos para servirem como base deste artigo.

Conclusão: Os implantes curtos oferecem uma alternativa de tratamento menos traumática nos casos de pouca altura óssea e limitações anatômicas.
Słowo wstępne
Authors: Kukowicz-Żarska Katarzyna
Published: March 2020

Oddajemy w Państwu ręce kolejny tom naszego czasopisma. Za motyw przewodni niniejszego tomu obraliśmy badania i poszukiwania w szerokim kontekście filologicznym. Gwarantem rozwoju nauki, w naszym mniemaniu, jawi się dociekliwość badawcza, poszukiwanie nowej myśli czy ścieżki naukowej, a jej następstwem wnikliwe i rzetelnie prowadzone badania. Te idee przyświecają także autorom, prezentującym na łamach naszego czasopisma swe aktualne zainteresowania i osiągnięcia naukowe.
Readability and lexical sophistication of colon cancer websites – a corpus-assisted assessment of online educational materials for patients
Authors: Bączkowska Anna
Published: March 2020

The aim of this paper is to check whether the information for colon cancer patients available on top websites devoted to this disease is comprehensible for the readers or whether, due to high saturation with special medical terms, it is beyond the recommended readability level of
an average internet user. Two main criteria of analysis were involved in the study: readability and lexical sophistication. The methods used in the study include 8 readability tests (ARI, Colemen-Liau, New Dale-Chall, Flesch-Kincid, Fry, Gunning Fog, Raygor Estimate, and SMOG), TAALES software and Lexical Complexity Analyser used to examine syntactic and lexical parameters of texts, and a corpus-assisted web-based tool used for lexical sophistication called VocabProfile. The study has shown that none of the 30 websites under scrutiny meets the demand of the recommended readability level, and that higher lexical sophistication involves a lower readability level.
Fake News als soziolinguistisches Phänomen
Authors: Daszkiewicz Anna
Published: March 2020

This paper addresses the socio-linguistic phenomenon of fake news. The emphasis is put on the premises, impact, perception, reception, and further functioning of purposefully falsified information. The text provides both a theoretical basis as well as practical fields of its application.
A Linguistic Analysis of Cultural Content in French-English Translation of a Yoghurt Commercial
Authors: Janczyło Arkadiusz
Published: March 2020

Advertising translation is a multifaceted practice which poses specific challenges for translators that extend beyond sheer linguistic competence of the professionals involved in the process. Cross-cultural awareness and sensitivity are called for when dealing with translating commercial matter internationally and interculturally. This paper presents a comparative analysis of a TV commercial of natural yoghurt and its representation in two languages. The advert was originally created in French, subsequently translated and dubbed in English by a French-accent English speaker. The English version deviates slightly linguistically and culturally from its French counterpart. The notions of explicitation, equivalence, adaptation and localisation applied in this paper provide grounds for analysis of a range of translation decisions and strategies which allow to achieve similar advertising pragmatic effects as well as add extra dimensions that are absent in the source text.
Medienlinguistische Analyse der Kommunikation in Livestreams von Computerspielen
Authors: Kowalewski Sławomir
Published: March 2020

The main goal of this article is to linguistically analyse the livestream of computer games. The study has interdisciplinary nature – it is based mainly on media linguistics instruments. However, the paper also refers to certain aspects of text linguistics and, to a large degree, semiotics of multimodality. Livestreams are a relatively new media phenomenon and thus for linguists are unexplored and demand research. The following article will attempt to define as precisely as possible the concept of 'text' and 'medium' in a linguistic context. Furthermore, media information transfer during livestream will be analysed. Particular emphasis will be placed on to what extent the message and reception are supported by the phenomena of pluriand intermediality. The analysis is based on screenshots from the Internet platform Twitch.
Deutsche Präpositionen als Träger lexikalischer Informationen. Eine Segmentierung nach Kriterien lexikalischer Autonomie
Authors: López-Campos Bodineau Rafael
Published: March 2020

This article is related to the study of the semantic load of the lexical category of prepositions. German prepositions, as in most Anglo-Germanic languages, are especially productive in the framework of two very specific syntactic functions: circumstantial complement and prepositional complement. Traditionally, in the context of the first one some type of semantic load is conferred on them, especially in cases where opposition pairs are available, while in the context of the second function they usually talk about uses of a purely conventional type with little lexical motivation. Through this article the possibility of relativizing this approach will be considered, and, thus, highlighting cases of prepositions with hardly any lexical load within the framework of a function as circumstantial complement, and, in the same way cases of prepositions with some kind of semantic value in the framework of the function as a repositional complement.
Discursive Construction of Language between the Vehicle Inspection Officers and Drivers in Abuja
Authors: Godwin Ayigbo Owojecho
Published: March 2020

Language has, since, shifted from just being a means of communication to a manner of showcasing power, ideology and other fundamental issues of identity. This has been the result of the shift in focus from language analysis as a form to language analysis as a function by modern linguists. This work, basically, is an exploration into the discursive properties in the interlocutions of Vehicle Inspection Officers (VIOs) and drivers on the major highways in Abuja. Their conversations were sampled through oral interviews and participant observation. This was carried out at the VIO major offices in Abuja and three major highways: the Nyanya-Keffi highway, the Zuba-Kaduna highway, and the Gwagwalada-Lokoja highway. To properly unveil the invested ideology and the exercise of power, Fairclough’s (1995) Ideological Discursive Formations (IDF) and Fairclough’s (1989) Members Resources, with insights from van Dijk’s (1998, 2001) social cognitive notion of Positive Self-presentation and Negative Other-presentation are employed. It is discovered that language is a veritable tool used by the officers and, sometimes, the drivers to perpetuate power and inherent ideology. The findings show that a lot of illegitimate dealings are committed by the Vehicle Inspection Officers and drivers as they deploy different strategies in words and action to display a superior ideology and institutional power.
Landscapes: a contribution to the discussion about the conceptualization of landscape in (Czech) geography
Authors: Mácha Přemysl
Published: March 2020

The goal of this article is to identify key reasons for the continuing confusion about the meaning of landscape in human geography and other social sciences. It seeks to offer a new perspective on landscape as a socially relevant environment, which can be productively applied within human geography to better understand human spatial behavior. The article builds on previous articles about the conceptualization of landscape in Czech geography published in this journal over the past few years.
Landscape typology of Czechia
Authors: Romportl Dušan , Chuman Tomáš , Lipský Zdeněk
Published: March 2020

The main goal of this paper is to introduce new methodological approaches and outputs of semi-complex landscape typology of Czechia. Different approaches of landscape classification both in Czechia and the world are briefly presented. The main methodological output is a proposal of landscape typological classification, based on up-to-date dataset synthesis, which uses objective geographical methods and tools and follows current approaches in Europe and the world. The practical result of this study is the definition and cartographic representation of landscape types at three hierarchical levels – General types of natural landscapes, Types of natural landscapes, Types of present landscape.
Representation of time and the creation of a temporal legend in animated cartographic works
Authors: Vít Lukáš , Bláha Jan D.
Published: March 2020

The article provides an analysis of the possibilities for the graphic presentation of time in animated cartographic works. After a brief introduction presenting the problem of capturing time and action within the framework of cartographic production, the article mentions methods commonly used for the expression of time in cartographic animations and indicates their weakness: as a rule, these methods don’t reflect the temporo-spatial progression of events that a cartographic work strives to capture. The article then proposes a general approach recommended for the design and creation of temporal legends for animated maps in order to eliminate this flaw. This general approach is then applied to a sample group of cartographic works that depict historical battles.
Land Cover Changes along the Iron Curtain 1990–2006
Authors: Kupková Lucie , Bičík Ivan , Najman Jiří
Published: March 2020

The article analyses land cover changes along the Iron Curtain in the period 1990–2006. CORINE land cover state and land cover change datasets are used to evaluate differences in land cover structure in 1990 and in land cover changes between the eastern (from former German Democratic Republic to Hungary) and western (former Federal Republic of Germany and Austria) border sections along the Iron Curtain. The results confirm different representation of individual land cover categories on the eastern and western sides. Different intensity of changes at the eastern and western border sections has been confirmed, too. More intense land cover changes were detected in the “East” after 1990. The highest intensity of changes was recorded at the Czech border sections where rather strong process of afforestation took place, together with retreat of intensive agriculture (changes on more than 8% of the area between 1990 and 2000). On the contrary, the Austrian border section was the most stable area (changes only on 0.13% of the area).
Map skills in Czech and foreign curricula: a comparative study
Authors: Hanus Martin , Marada Miroslav
Published: March 2020

The contribution deals with a comparison of curricular documents of Czechia, Slovakia, Finland and the U.S.A., with special emphasis on map skills. Requirements for map skills of 11, 15 and 18-years-aged pupils, included in the curricula of the above mentioned countries, have been classified using the Revised Bloom’s taxonomy. Subsequent comparison was based on the distribution of these requirements on the performance of pupils among the 24 categories of the taxonomy. Presented results indicate considerable differences in the conception of map skills from the point of view of both their type (i.e. position in individual categories) and continuity according to the level of education.
Time geography under the influence of information and communication technologies
Authors: Madajová Michala , Šveda Martin
Published: March 2020

It is clear that time geography has the potential to help us better understand the spatial-temporal behaviour of individuals. However, the great expansion of information and communication technologies in the recent period has dramatically changed human life and has brought new ideas to this discipline. Some time-geographic concepts which have formed the backbone of time-space research until now need to be modified and extended to accommodate the changing nature and characteristics of human activities and interactions in a hybrid physical-virtual space. The paper addresses the latest trends in time geography and outlines the challenges and problems facing this area of research. It examines how information and communication technologies have contributed to currently changing concepts of classical time geography and brought new impulses in approaches and methods necessary to capture, analyse and represent a variety of activities of individuals in the complexity of social and spatial interactions.
Corosolic Acid Inhibits Cancer Progress Through Inactivating YAP in Hepatocellular Carcinoma
Authors: Jia Ming , Xiong Yulin , Li Maoshi , Mao Qing
Published: March 2020

Chemotherapy is critical for the treatment of hepatocellular carcinoma (HCC). Despite the proapoptotic effects of corosolic acid (CA) treatment, its underlying mechanism is not completely clear. The aim of this study was to determine the molecular mechanism of CA in HCC treatment. MTT
assay was used to determine the IC50 of CA. Immunoprecipitation and immunofluorescence were used to detect the interaction and subcellular localization of Yes-associated protein (YAP) and mouse double minute 2 (MDM2). In addition, in vivo xenotransplantation was performed to assess
the effects of CA, YAP, and MDM2 on tumorigenesis. The IC50 of CA was about 40 M in different HCC cell lines, and CA decreased YAP expression by reducing its stability and increasing its ubiquitination. CA treatment and MDM2 overexpression significantly decreased the crosstalk between
YAP and cAMP-responsive element-binding protein (CREB), TEA domain transcription factor (TEAD), and Runt-related transcription factor 2 (Runx2). CA stimulation promoted the translocation of YAP and MDM2 from the nucleus to the cytoplasm and increased their binding. In addition, CA treatment
obviously reduced tumorigenesis, whereas this effect was abolished when cells were transfected with sh-MDM2 or Vector-YAP. The present study uncovered that CA induced cancer progress repression through translocating YAP from the nucleus in HCC, which might provide a new therapeutic target
for HCC.
Pengaruh Gaya Belajar Terhadap Penguasaan Konsep Fisika Siswa Pada Materi Besaran dan Pengukuran
Authors: Yulianci Syahriani , Gunawan  , Aris Doyan  , Fenny Febriyanti
Published: March 2020

Gaya belajar merupakan salah salah satu cara yang biasa digunakan siswa dalam menerima atau mengolah informasi yang diperoleh. Penelitian ini bertujuan menguji pengaruh gaya belajar terhadap penguasaan konsep fisika siswa. Penelitian ini merupakan penelitian eksperimen semu dengan desain pretest-posttest control group. Subjek penelitian berjumlah 68 siswa yang diperoleh secara purposive sampling. Subjek penelitian dibagi ke dalam tiga kelompok berdasarkan gaya belajar masing-masing yaitu kelompok visual, kelompok auditrori, dan kelompok kinestetik. Terdapat dua data yang diperoleh dalam penelitian ini yaitu data gaya belajar dan data penguasaan konsep fisika pada materi besaran dan pengukuran. Data gaya belajar diperoleh melalui instrument gaya belajar dengan jenis pilihan ganda berjumalah 20 butir soal. Instrumen penguasaan konsep fisika sebanyak 22 butir soal berbentuk pilihan ganda. Data dianalisis dengan menggunakan uji statistik Anava Dua Jalur. Hasil uji statistik memperlihatkan bahwa gaya belajar tidak berpengaruh secara signifikan terhadap penguasaan konsep fisika siswa. Hal ini dibuktikan dari nilai rata-rata posttest penguasaan konsep fisika ketiga jenis gaya belajar memiliki nilai yang hampir sama.
Proses Berpikir Kreatif dalam Menyelesaikan Masalah Matematika Ditinjau dari Self Efficacy
Authors: Husnul Khatimah  , Fatmah
Published: March 2020

Tujuan dari penelitian ini adalah untuk mendeskripsikan proses berpikir kreatif dalam menyelesaikan masalah ditinjau dari self efficacy. Subjek dalam penelitian ini adalah dua mahasiswa semester III STKIP Taman Siswa Bima yang memiliki kemampuan matematika tinggi. Kuesioner self efficacy dan tes kemampuan matematika peneliti gunakan untuk memilih subjek penelitian yang terdiri atas satu subjek dengan self efficacy tinggi dan satu subjek dengan self efficacy rendah tetapi keduanya memiliki kemapuan matematika yang sama. Data yang dikumpulkan dengan memberikan soal pemecahan masalah dan wawancara untuk mendapatkan data lebih lanjut tentang proses berpikir kreatif. Hasil penelitian menunjukkan bahwa siswa dengan self efficacy tinggi dan self efficacy rendah melewati setiap proses berpikir kreatif. Proses berpikr kreatif yang dilakukan oleh subjek dengan self efficacy tinggi dan self efficacy rendah berbeda dalam beberapa aspek diantaranya: tahap persiapan, perbedaan dalam memilih cara yang benar, tahap iluminasi, perbedaan dalam memberikan metode pemecahan masalah, dan tahap verifikasi. Perbedaan dalam mengalisis
İLKOKUL HAYAT BİLGİSİ DERSLERİNDE ORTAYA KONULAN ÖĞRENCİ ÜRÜNLERİNİN İNCELENMESİ
Authors: ÜTKÜR Nur
Published: March 2020

Öz: Bu çalışmada ilkokul 3. sınıf hayat bilgisi derslerinde öğrencilerin sınıf ortamında

oluşturdukları ürünlerin özelliklerinin çeşitli açılardan incelenmesi ve bu konuya yönelik öğrenci

görüşlerinin alınması temel amacı oluşturmaktadır. Bu amaçla nitel araştırma özelliği taşıyan bu

çalışmada, Türkiye’nin İstanbul ilin- deki bir devlet okulundan seçilen bir 3. sınıf öğretmeninin

işlediği hayat bilgisi derslerinden dört ders saati gözlemlenmiştir. Bu derslerde toplam 32

öğrencinin ortaya koyduğu ürünlerin farklı açılardan incelemesi yapılmıştır. Derslerin iş-

lenmesinden sonra öğrencilerin sınıf ortamında ortaya koydukları ürünler doküman analizi

yöntemiyle incelenmiştir. Elde edilen tüm veriler içerik analizi yöntemiyle analiz edilmiştir.

Gözlemlerden ve doküman analizinden elde edilen bulgulara göre, Trafik Kuralları konusunda

öğrencilerin ortaya koydukları ürünlerden en fazla olanın slogan çalışması olduğu, Liderlik

Özellikleri konusunda karşılaştırma tablosu yapma, Hayır Diyebiliyorum konusunda şiir yazma ve

akrostiş çalışması yapma ve İyilik Yapalım konusunda ise mektup yazma olduğu tespit edilmiştir.

Doküman inceleme sonucunda öğrenci ürünlerinin istendik özellikleri taşıdığı belirlenmiştir. Gözlem

sonuçlarına göre elde edilen verilerin ürünlere ve öğrenci davranışlarına yönelik olduğu tespit

edilmiştir. Ürünleri istenen sürede tamamlayan öğrenci sayısının, ürünleri tamamlayamayıp yarım

bırakan öğrencilere göre daha çok olduğu belirlenmiştir. Yapılan görüşmeler sonucu öğrencilerin

hayat bilgisi derslerinde birbirinden farklı ürünler ortaya koy- maktan mutlu oldukları,

kendilerini iyi hissettikleri ve derse katılım konusunda istekli oldukları belirlenmiştir.
Traffic Offloading in LTE System Based Heterogeneous Networks
Authors: Mosleh Mahmood
Published: March 2020

The continuous growing developments in the traffic of mobile data limits the data throughput and capacity of cellular networks. “Heterogeneous Networks (HetNets)” are efficient solution to realize such demands. However, in HetNets, the congestion on the overloaded cellular network can be increased when the traffic of data is pushed from a cellular network to the Wi-Fi. In practice, offloading the cellular data traffic to a Wireless Local Area Network (WLAN) depending on the signal quality is a broadly deployed method to solve such problem. The use of Device to Device (D2D) communication further enhances the traffic offloading in WLAN systems and helps to obtain better throughput, end-to-end delay and network load. However, the critical offloading potential and its impacts on the whole performance is not totally understood. In this paper, the offloading of Long Term Evolution (LTE) traffic is presented using a WLAN for voice and video applications. A comparison is performed among two WLAN mechanisms; Distributed coordination function (DCF) and Point Coordination Function (PCF). As well, the effect of adding a D2D technology to the PCF is discussed. The WLAN effectively offloaded nodes at their Signal to Interference and Noise Ratio (SINR) becomes more than a specific threshold. Results presented that the PCF mechanism outperforms the DCF one in terms of packet loss ratio, throughput and the maximum load of the entire network. In addition, the use of a D2D serviced in the PCF helps in further reduction in the network load.
Estimation of analytical model for enhancement and implementation of an electro-optic switch
Authors: Hbeeb Sadeq
Published: March 2020

This research presents a technique of an electro optic effect for enhancement the an accomplishment of an electro optics switch using Mat lab simulation program . this technique includes design a mathematical model for evaluate the effect of different parameters such as refractive index (n), distance of separation between waveguides (d), length of electrodes (L), relative refractive index (Δn), and switching voltage (V), on the DC bias voltage of an electro optics switch. In this work the investigation of performance of an electro optics switch by analysis of an effect of distance between waveguides and the changing of refractive index on the bias voltage (V), and which optimizes when the wavelength is from 1300 into 1550 nm. Finally, an electro-optic active switch is designed and optimized, using the analytical model and which considers important device in the modern optical communication system.
Improve Linear Quadratic Regulator by Particle Swarm Optimization Algorithms for Two Wheeled Self Balancing Mobile robot
Authors: Karam Ekhlas , Mjeed Noor
Published: March 2020

The aim of this paper is to suggest a methodical smooth control method for improving the stability of two wheeled self-balancing robot under effect disturbance. To promote the stability of the robot, the design of linear quadratic regulator using particle swarm optimization (PSO) method and adaptive particle swarm optimization (APSO). The computation of optimal multivariable feedback control is traditionally by LQR approach by Riccati equation. Regrettably, the method as yet has a trial and error approach when selecting parameters, particularly tuning the Q and R elements of the weight matrices. Therefore, an intelligent numerical method to solve this problem is suggested by depending PSO and APSO algorithm. To appraise the effectiveness of the suggested method, The Simulation result displays that the numerical method makes the system stable and minimizes processing time.
A Biometric System for Iris Recognition Based on Fourier Descriptors and Principle Component Analysis
Authors: Hamd Muthana , Ahmed Samah
Published: March 2020

Iris pattern is one of the most important biological traits of humans. In last years, the iris pattern is used for human verification because of uniqueness of its texture. In this paper, biometric system based iris recognition is designed and implemented using two comparative approaches. The first approach is the Fourier descriptors, in this method the iris features have been extracted in frequency domain, where the low spectrums define the general description of iris pattern, while the high spectrums describes the fine detail. The second approach, the principle component analysis uses statistic technique to select the most important feature values by reducing its dimensionality. The biometric system is tested by applying one-to-one pattern matching procedure for 50 persons. The distance measurement method is applied for Manhattan, Euclidean, and Cosine classifiers for purpose of comparison. In all three classification methods, Fourier descriptors were always advanced principle component analysis in matching results. It satisfied 96%, 94%, and 86% correct matching against 94%, 92%, and 80% for principle component analysis using Manhattan, Euclidean, and Cosine classifiers respectively.
Analog Programmable Circuit Implementation for Memristor
Authors: Tahir Fadhil , Ramadhan Saif
Published: March 2020

In this work, a new flux controlled memristor circuit is presented. It provides a tool to emulate the pinched hysteresis loop.When driven the memristor by a bipolar periodic signal, the memristor exhibits a “pinched hysteresis loop” in the voltage-current plane and starting from some critical frequency, the hysteresis lobe area decreases monotonically as the excitation frequency increases, the pinched hysteresis loop shrinks to a single-valued function when the frequency tends to infinity. The design model numerically simulated and the physical implementation is achieved by using a field programmable analog array (FPAA). The circuit can be modeled and implemented with a changeable nonlinear function blocks and fixed main system blocks. The simplicity of the specific design method makes this proposed model be a very engaging option for the design of the memristor.
The Effect of Using Projective Cameras on View-Independent Gait Recognition Performance
Authors: Abdulsattar Fatimah
Published: March 2020

Gait as a biometric can be used to identify subjects at a distance and thus it receives great attention from the research community for security and surveillance applications. One of the challenges that affects gait recognition performance is view variation. Much work has been done to tackle this challenge. However, the majority of the work assumes that gait silhouettes are captured by affine cameras where only the height of silhouettes changes and the difference in viewing angle of silhouettes in one gait cycle is relatively small. In this paper, we analyze the variation in gait recognition performance when using silhouettes from projective cameras and from affine cameras with different distance from the center of a walking path. This is done by using 3D models of walking people in the gallery set and 2D gait silhouettes from independent (single) cameras in the probe set. Different factors that affect matching 3D human models with 2D gait silhouettes from single cameras for view-independent gait recognition are analyzed. In all experiments, we use 258 multi-view sequences belong to 46 subjects from Multi-View Soton gait dataset. We evaluate the matching performance for 12 different views using Gait Energy Image (GEI) as gait features. Then, we analyze the effect of using different camera configurations for 3D model reconstruction, the GEI from cameras with different settings, the upper and lower body parts for recognition and different GEI resolutions. The results illustrate that low recognition performance is achieved when using gait silhouettes from affine cameras while lower recognition performance is obtained when using gait silhouettes from projective cameras.
Automated Power Factor Correction for Smart Home
Authors: Alhasnawi Bilal , Jasim Basil
Published: March 2020

In the current scenario, power factor has become an important concern in all industries. Poor power factor gives rise to many problems which result in financial loss of industries and also for the commercial users. The main concern of this work is to improve the usage of real power with respect to reactive power hence improving the power factor. Here we have used the technique of relay switching method with a capacitor so that any drop in power factor can be sensed by the controller and switch the capacitor as required. This will not only help to improve power factor but also demand of electricity supply on utility side will be reduced. The Significance of this work is to build an APFC (Automatic Power Factor Correction) Unit. The APFC appliance calculates the reactive power (KVAR) expended by a system’s load and compensates the lagging PF (power factor) utilizing capacitances from capacitor banks.
Control of Robot Directions Based on Online Hand Gestures
Authors: Tawfeeq Mohammed , Abbass Ayam
Published: March 2020

The evolution of wireless communication technology increases human machine interaction capabilities especially in controlling robotic systems. This paper introduces an effective wireless system in controlling the directions of a wheeled robot based on online hand gestures. The hand gesture images are captured and processed to be recognized and classified using neural network (NN). The NN is trained using extracted features to distinguish five different gestures; accordingly it produces five different signals. These signals are transmitted to control the directions of the cited robot. The main contribution of this paper is, the technique used to recognize hand gestures is required only two features, these features can be extracted in very short time using quite easy methodology, and this makes the proposed technique so suitable for online interaction. In this methodology, the preprocessed image is partitioned column-wise into two half segments; from each half one feature is extracted. This feature represents the ratio of white to black pixels of the segment histogram. The NN showed very high accuracy in recognizing all of the proposed gesture classes. The NN output signals are transmitted to the robot microcontroller wirelessly using Bluetooth. Accordingly the microcontroller guides the robot to the desired direction. The overall system showed high performance in controlling the robot movement directions.
Digital Image Encryption using AES and Random Number Generator
Authors: Jumaa Noor
Published: March 2020

In nowadays world of rapid evolution of exchanging digital data, data protection is required to protect data from the unauthorized parities. With the widely use of digital images of diverse fields, it is important to conserve the confidentiality of image’s data form any without authorization access. In this paper the problem of secret key exchanging with the communicated parities had been solved by using a random number generator which based on Linear Feedback Shift Register (LFSR). The encryption/decryption is based on Advance Encryption Standard (AES) with the random key generator. Also, in this paper, both grayscale and colored RGB images have been encrypted/decrypted. The functionality of proposed system of this paper, is concerned with three features: First feature, is dealing with the obstetrics of truly random and secure encryption key while the second one deals with encrypting the plain or secret image using AES algorithm and the third concern is the extraction the original image by decrypting the encrypted or cipher one. “Mean Square Error (MSE)”, “Peak Signal to Noise Ratio (PSNR)”, “Normalized Correlation (NK)”, and “Normalized Absolute Error (NAE)” are measured for both (original-encrypted) images and (original-decrypted) image in order to study and analyze the performance of the proposed system according to image quality features.
Chemical Composition of Bunium elegans (Fenzl) Freyn var. elegans Essential Oil
Authors: ÖZTÜRK Gözde , DEMİRCİ Betül , ÇELİK Mustafa , BAŞER Kemal
Published: March 2020

The genus Bunium (Apiaceae) comprises about 50 species spreading in Asia, Europe and North Africa. It is encountered in almost every region of Turkey, especially in the Mediterranean, Southeastern Anatolia and Eastern Anatolia regions. It has various therapeutic effects on digestive and urinary tract disorders. In traditional medicine, it has been used in chronic stomach diseases, colitis, jaundice, chronic cholangitis, swelling and kidney stones. In this study, it is aimed to clarify the chemical profile of essential oil obtained from Bunium elegans (Fenzl) Freyn var. elegans and to determine its main compounds. Aerial parts of B. elegans collected from Kayseri, Turkey and hydrodistillated for 3 h by Clevenger-type apparatus to obtained essential oil. The chemical composition of the essential oil was analyzed by Gas chromatography (GC), Gas chromatography and Mass spectrometry (GC-MS), simultaneously. Caryophyllene oxide (28.7%), myristicin (7.4%), caryophyllenol II (4.1%) and hexadecanoic acid (3.7%) were found as major components for the B. elegans essential oil. To the best of our knowledge, this is the first report on the chemical constituents of B. elegans from Turkey.
Chemical Profile Of Schinus molle L. Essential Oil And Its Antihemostatic Properties
Authors: DA SİLVEİRA Rosiane , GUEDES Alessandra , FRATTANİ Flávia , EPİFÂNİO Neide , SOUZA Marco , SİQUEİRA DE ALMEİDA CHAVES Douglas
Published: March 2020

About 17.7 million people die each year from cardiovascular disorders and the essential oils have great importance in the development of research. The aim was to evaluate the chemical composition of the essential oil from Schinus molle (EOSM) and their antihemostatic activity. EOSM was obtained from leaves by hydrodistillation and characterized by GC-FID-MS. Anticoagulant assay was performed by activated Partial Thromboplastin Time (aPTT) and Prothrombin Time (PT) assays, and the platelet aggregation assays were performed using adenosine diphosphate (ADP) and collagen as inducers. Forty-one compounds were identified mainly sesquiterpenes (88.1%) of which epi-α-cadinol (22.8%) and γ-cadinene (9.7%) are the major compounds. EOSM does not showed anticoagulant activity (40-400 mg mL-1). EOSM oil was activity against ADP inducer at 5 mg mL-1 (80%) and 40 mg mL-1 (48%), but against collagen the EOSM did was not activity. This is the first report of antiplatelet action of Schinus molle.
Antimicrobial activities of mouthwashes obtained from various combinations of Elettaria cardamomum Maton., Lavandula angustifolia Mill. and Salvia triloba L. essential oils
Authors: KARADAĞ Ayşe Esra , İPEKÇİ Esra , YAĞCILAR Ayşe Pınar , DEMİRBOLAT İlker , KARTAL Murat , I. SİAFAKA Panoraia , ÜSTÜNDAĞ OKUR Neslihan
Published: March 2020

Essential oils generally show significant antimicrobial activity.Herein,the aim was to obtained the volatileoils ofElettaria cardamomum Maton., Lavandula angustifolia Mill. and Salvia triloba L. and to investigate the antimicrobial activity of mouthwashes formulated with different combinations of E. cardamomum, L. angustifolia and S. triloba essential oils (v/v; 0.1/0.25/0.1; 0.2/0.25/0.1; 0.3/0.1/0.1 in 10 mL).The antimicrobial evaluation was performed using the disc diffusion method against the human pathogenic Staphylococcus aureus ATCC 6538, Escherichia coli NRLL B-3008,Bacillus cereus 14579, Salmonella typhiiclinical isolated. In the present study, among the tested bacteria, S. typhii was the more sensitive to the moutwash formulations, while B. Cereusand E. coli were the most resistant.
Role of Epidemiological Studies in Disease Prevention
Authors: Akhtar Muhammad Shoaib
Published: March 2020

Today’s society is full of disease that are of different natures including genetic, infectious and metabolic etc. Every disease has its own mechanisms of affecting humans and different prevention mechanisms as per disease nature. These factors are included in epidemiology of disease. Other factors include prevalence and incidence of diseases in different populations. Exactly knowing about disease epidemiology helps governing authorities to prevent the disease. Unfortunately, under-developed and developing nations are not focusing on diseases epidemiology. On the other hand, all developing nations developed best public health practices based on diseases epidemiology data. These studies may vary from basic epidemiological surveys to identification of microorganism strains etc.
Frequency of Clinical symptoms of Gastroesophageal Reflux Disease in Asthmatic Patients
Authors: Hafeez Nadeem , Ullah Qudrat , Hanif Asif , Akhtar Zaheer , Umar Muhammad , Rafaqat Rukhma
Published: March 2020

Abstract:
Background: Gastroesophageal reflex is known as an acid reflex, is long term condition where stomach contents back into the oesophagus resulting in either symptoms or complications. GERD disease is caused by weakness or failure of the lower oesophageal sphincter. Symptoms include the acidic taste behind the mouth, heart burn, chest pain, difficult breathing and vomiting. Complication includes esophagitis, oesophageal strictures and barrettes oesophagus.
Objective: The aim of this research was to introduce the symptoms of GERD disease in asthmatic patients and how these symptoms worsen the symptoms of asthma disease and what clinical pictures present with the asthmatic disease.
Methodology: A designed performa was used to collect the data and after filling the performa, results were drawn and conclusion through the facts and the information given by patients.
Results: In the present study among all 164 asthmatic patients, 70 (42.7%) patients showed dyspepsia, 58 (35.4%) were with chest burning, 23 (14%) were asking about chest pain, with acidic mouth taste were 39 (23.8%), 22 (13.4%) were feeling sore throat and 44 (26.8%) showed regurgitation reflex. Among these 164 patients 16 (9.8%) were smokers and 148 (90.2 %) were non-smokers. 47 (28.7%) were males and 117 (71.3%) were females.
Conclusion: It is concluded that gastroesophageal reflux disease in asthmatic patients present symptoms of acidic mouth taste, chest burning, chest pain, dyspepsia, regurgitation reflex and sore throat.
Detection of Single Nucleotide Polymorphism rs2013162 of IRF6 Gene in Patient with Cleft Lip and Palate
Authors: Shehzad Husnain , Shehzad Osheen
Published: March 2020

Abstract:
Background: Cleft lip and palate are congenital disorders which induce affected individuals medically, socially and psychologically. The objective of this study was to investigate the association of Single Nucleotide Polymorphism(SNP); rs2013162 of IRF6 Gene in Patient with Cleft Lip and Palate.
Materials and Methods: Fifty patients with non-syndromic CL/P were included in present study alongwith fifty individuals with no psychiatric history as controls. In all of the these individuals, search for Single nucleotide polymorphism was carried out by designing sequence specific primers. The sequence was amplified by using Real time PCR and products were investigated by visualizing high resolution melting curve upon HRM-PCR.
Results: The logistic regression and Hardy-Weinberg equilibrium were applied to investigate the association of IRF6 SNP rs2013162 with disease. Results revealed no association of this polymorphism with non-syndromic CL/P.
Conclusion: We found no association of IRF6 SNP rs2013162 in patients with non-syndromic CL/P. Further study is required with larger sample size to validate the findings of the present study in Pakistani population and along with this SNP other polymorphisms of the same gene should be analyzed to find out the association with the non-syndromic CL/P.
Gebelerin Ölüm Kaygısı Düzeylerinin Bazı Değişkenler Açısından İncelenmesi
Authors: ŞANAL KARAHAN Faika , GÜLMEZ Eda , HAMARTA Erdal
Published: March 2020

Amaç:Bu araştırmanın amacı, gebelerdeki ölüm kaygısının bazı değişkenler açısından incelenmesidir.
Yöntem: Araştırma, Nisan- Haziran 2017 tarihleri arasında Uşak Üniversitesi Tıp Fakültesi Eğitim ve Araştırma Hastanesi, Kadın Hastalıkları ve Doğum Polikliniği’kane kontrole gelen 110 gebe olan ile 101 gebe olmayan kadın hastalarla gerçekleştirilmiştir. Gebelerin ölüm kaygısını belirlemek amacıyla, geçerlilik ve güvenirlik çalışması Sarıkaya (2013) tarafından yapılan ve ölümün belirsizliği, ölümü düşünme ve tanıklık, acı çekme olmak üzere üç alt boyutu olan “Ölüm Kaygısı Ölçeği” ve kişisel ve aile ile ilgili bilgi edinmek amacıyla araştırmacı tarafından hazırlanan “Kişisel Bilgi Formu” kullanılmıştır. Veriler SPSS programı ile değerlendirildi.
Bulgular: Örneklemi oluşturan kadınların yaşları 18 ile 38 arasında değişmektedir ve yaş ortalaması 26.3’tür. Araştırmadan elde edilen bulgulara göre, gebe olan kadınlarda ölüm kaygısı yüksek düzeydeyken gebe olmayan kadınlarda ölüm kaygısı düşük düzeyde bulunmuştur. Gebelerde ölüm kaygısı düzeyini yükselten değişkenler arasında katılımcıların gebeliğin son haftalarında olmaları, düşük yaşamaları, ailede gebelikten dolayı ölümün gerçekleşmesi olduğu gözlenmiştir.
Sonuç: Gebe olmak, gebeliğin son haftalarına ulaşmak, düşük yapmak, ailede gebelik öyküsünün gebelerin ölüm kaygısı düzeylerini artırdığı gözlenmiştir.
Bağlamın Anlamı ve Nitelikleri ve Öğrencilerin Fen Eğitiminde Bağlam Tercihleri
Authors: ELMAS Rıdvan
Published: March 2020

Bu çalışmanın amacı bağlam temelli fen eğitimi yaklaşımına uygun bağlam temelli fen dersi tasarımı yaparken kullanılan bağlam kavramını tanımlamak ve bu kavramın bağlam temelli fen eğitiminde kullanımını ile ilgili nitelikleri belirlemektir. Çalışma bir alan taraması çalışmasıdır. Bu çalışma kapsamında konu ile ilgili olan makaleler veri tabanlarından taranmış ve ilgili makaleler üzerinden bir sentez yapılmaya çalışılmıştır. Bağlam kelimesi birçok çalışmada ve alanda farklı şekillerde tanımlanmaktadır. Bu sebeple oluşan karmaşayı bu çalışma fen eğitimi için ortadan kaldırmayı hedeflemektedir. Yapılan fen eğitimi araştırmaların da bağlama gereken önemin verilmediğini belirten çalışmalar mevcuttur. Ayrıca bağlam kullanımı ile ilgili olan nitelikler belirlenerek bundan sonra bağlam temelli ya da benzer yaklaşımları kullanarak hazırlanan çalışmalar için bağlam kullanımının kolaylaştırılması hedeflenmektedir. Ayrıca öğrencilerin bağlam seçimini etkileyen kriterler de belirlenmiştir.
Bitki gelişimini Teşvik Eden Rizobakteriler tarafından Üretilen Metabolitler ve Bitki Gelişimine Etkileri
Authors: KÜÇÜK Çiğdem , ALMACA Ahmet
Published: March 2020

Çevresel stres bitki gelişimini olumsuz etkiler. Kuraklık, tuzluluk, ağır metaller, sıcaklık gibi abiyotik faktörler bitkisel verimin azalmasına neden olurlar. Mikroorganizmalar tarafından üretilen metabolitler en önemli bitki gelişme düzenleyicilerindendir. Strese karşı bitki savunma mekanizmalarını stimüle ederler. Rizosfer bakterileri oksin, sitokinin, gibberellin, etilen ve absisik asit gibi bitki hormonlarını üreterek bitki gelişimini teşvik ederler. Mineral fosfatın ve diğer besin maddelerinin çözünmesi, strese karşı direncin arttırılmasında, toprak agregatlarının stabilizasyonunda ve toprağın organik madde içeriğinin iyileştirilmesine yardımcı olurlar. Bu derlemede, bitkilerin stres toleransını indükleyen  rizobakteriler tarafından üretilen metabolitler ile ilgili yapılan çalışmalar özetlenmiştir.
Atrazine ve Glyphosate’ın Toprak Karbon Mineralizasyonuna Olan Etkileri
Authors: KOÇAK Burak
Published: March 2020

Tarımsal ekosistemlerde yabancı
otların kontrolünde en çok tercih edilen yöntemlerden birisi herbisit
kullanımıdır. Toprakta herbisitlerin davranışlarını ve ayrışmalarını belirleyen
en önemli faktörlerden birisi mikrobiyal aktivitedir. Karbon mineralizasyonu
toprak kalitesinin biyolojik indikatörlerinden birisi olup topraktaki tüm
canlıların hayati faaliyetlerini sürdürebilme kapasitesini yansıtmaktadır. Bu
derlemede tarım alanlarında yabancı ot kontrolünde en fazla kullanılan
bileşikler olan atrazine ve glyphosate’ın toprakta karbon mineralizasyonuna
olan etkileri özetlenmiştir.
Severe Hirsutism in Non Classic Congenital Adrenal Hyperplasia: A Case Report and Literature Review
Authors: Emini Merita , Olldashi Blertina , Qovanaj Blerina
Published: March 2020

BACKGROUND: Non-classic congenital adrenal hyperplasia (NCAH) is a relatively common disorder, but very often, it remains undiagnosed. Clinical appearance of NCAH can be asymptomatic at birth. Symptoms are presented more often in late childhood, adolescence, or later in life caused by excessive androgen secretion.
CASE REPORT: We report the case of 27-year-old girl with 2 years history of high-grade of hirsutism, hair loss on the front of scalp with female pattern hair loss, (grade II according to Ludwig scale), breast volume reduction, weight loss (15 kg), depression, but without menstrual disorders, normal blood pressure, and usage of oral contraceptives for more than 1 year without any improvement. We did blood tests for hormonal protocol for hyperandrogenemia and we found these values high 17 (OH) progesterone and all other androgen hormones. After these examinations, the patient was diagnosed with a non-classic form of CAH.
CONCLUSION: Treatment with corticosteroids and other necessary treatment improved clinical and hormonal features.